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WO1997032717A1 - Tube-production device - Google Patents

Tube-production device Download PDF

Info

Publication number
WO1997032717A1
WO1997032717A1 PCT/EP1997/001098 EP9701098W WO9732717A1 WO 1997032717 A1 WO1997032717 A1 WO 1997032717A1 EP 9701098 W EP9701098 W EP 9701098W WO 9732717 A1 WO9732717 A1 WO 9732717A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
strip material
adhesive
winding
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1997/001098
Other languages
German (de)
French (fr)
Inventor
Adolf Brodbeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brodbeck Maschinenbau & Co GmbH
Original Assignee
Brodbeck Maschinenbau & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19707407A external-priority patent/DE19707407A1/en
Application filed by Brodbeck Maschinenbau & Co GmbH filed Critical Brodbeck Maschinenbau & Co GmbH
Publication of WO1997032717A1 publication Critical patent/WO1997032717A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4329—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms the joint lines being transversal but non-orthogonal with respect to the axis of said tubular articles, i.e. being oblique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • B29C66/83433—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts the contact angle between said rollers, cylinders or drums and said bands or belts being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9513—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools characterised by specific vibration frequency values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0095—Making drinking straws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2003/00—Use of starch or derivatives as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/123—Coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/008—Drinking straws

Definitions

  • the invention relates to a device for producing a tube, in particular a drinking tube, according to the preamble of patent claim 1.
  • the supply of the strip material from a supply roll to the winding device is provided at a certain angle, which determines the area of the overlapping edge zones of the strip material to form a tube.
  • the tape material Before the tape material is wound on the winding mandrel, it passes through an adhesive device, as a result of which liquid adhesive is applied to the edge zones in the overlap area.
  • the overlapping edge zones of the strip material are fixed to one another, so that a tube is formed which can be transported away from the winding mandrel in the direction of the cutting device.
  • the tubes are immersed in paraffin or another medium that seals the paper against moisture so that they can be used as drinking straws.
  • Such a device for producing a drinking straw has the disadvantage that a complex design of an adhesive device is provided which is only allowed to apply a very specific amount of adhesive to the strip material and which must be able to be limited and adjusted in the edge zone.
  • a complex design of an adhesive device is provided which is only allowed to apply a very specific amount of adhesive to the strip material and which must be able to be limited and adjusted in the edge zone.
  • the adhesive will emerge laterally from the overlap area and can therefore be applied to the winding mandrel, which means that bonding or at least difficult winding between the Winding mandrel and band material can be given.
  • the adhesive application is too low, so that overlap areas can be present without an adhesive connection. This can lead to disruptions in the production process, since the helical or helical strip material expands and its helical shape can dissolve.
  • a further disadvantage is that the paper is coated with paraffin for the production of such drinking straws or that paraffinated paper tape materials are used. Due to the insolubility in water and in high-percentage alcohol of the paraffin, the disposal of such paraffinated straws is no longer permitted, so that the advantages of paraffin as a colorless, odorless and tasteless impregnating agent for straws can no longer be used.
  • the invention is therefore based on the object of providing a device for processing a strip material which enables simple and secure connection of the strip material in the overlap region of the wound helical strip material and a strip material which can be used to produce the tubes, which is disposable and recyclable.
  • biodegradable Tape material can be used, which can have the required impregnation properties, for example for use as drinking straws, and at the same time enables a satisfactory adhesive connection in the overlap area of the helically arranged tape material.
  • the adhesive device according to the invention has the advantage that a simple and quickly adjustable adhesive device is created, which creates a secure adhesive connection.
  • a simple and quickly adjustable adhesive device is created, which creates a secure adhesive connection.
  • the surfaces of the coated material can be brought into a state in which they bond to one another and can form a firm connection after the end of the exposure time. It is advantageously provided that the energy can be applied selectively or in planar form.
  • the design of the adhesive device according to the invention has the advantage that an adhesive connection can be created without the use of additional adhesives or auxiliaries which are necessary for the formation of a secure adhesive connection. This can save adhesive, for example. Furthermore, a further component for the production of a tube can be omitted which would have to meet the high requirements with regard to disposal and recyclability.
  • the adhesive device according to the invention has the advantage that, depending on the tape material used, with a corresponding coating, the type of energy supply can be freely selected and can be adapted to the tape material and to the processing speeds.
  • the supply of energy can advantageously be provided in the form of heat, waves, rays or the like.
  • the adhesive device is designed as an ultrasound head.
  • This advantageously has a sonotrode tip which can be adapted to the width of the adhesive connection or the width of the overlap area, so that, for example, an adhesive connection can be produced over the entire width of the overlapping edge zones.
  • Dependent on The ultrasound frequency of the strip material and the coating can be selectable, the sonotrode tip being operated above 20 KHz, preferably in a range from 30 to 60 KHz.
  • the adhesive device is designed as a laser.
  • a bundled light beam with high energy can act on the overlap area and cause the coating to melt or melt quickly, so that a satisfactory adhesive bond can be produced even at very high working speeds.
  • the adhesive device emits electromagnetic waves.
  • the adhesive device can be designed as a light source, which has a focusing device that bundles and adjusts the light beams. Analogous to the laser, waves can also act on the overlap area here, whereby an even more cost-effective design can be achieved compared to the laser.
  • the adhesive connection can be produced after the winding process.
  • the adhesive device is advantageously provided after the winding device.
  • the strip material can thus be fed directly from the supply roll to the winding mandrel, the strip material first being converted into a helical tube shape by means of the winding device.
  • the adhesive device then creates an adhesive connection between the strip material in the overlap area.
  • the strip material is made of a plastic coating, advantageously a coating 5
  • This plastic coating is present in a ratio of less than 20 percent by weight to the strip material formed from paper. As a result, such a tube can be disposed of without any problems and is well within the applicable regulations for disposal and recyclability.
  • a tape material is formed with a double-sided coating of 5 to 25 g / m 2 , and that 70 to 140 g / m 2 paper can be used as the carrier material.
  • the strength of the paper can increase the inherent rigidity of the tube and thus withstand higher kink loads.
  • a 110 g / m 2 paper can advantageously be provided.
  • the percentage of the plastic coating can be adjusted, it being possible to form a particularly stiff tube with 110 g / m 2 paper and a coating on both sides of 10 g plastic.
  • the tube can advantageously be produced with a strip material.
  • a double-sided coated strip material is used, in which case the tube is then wound in two layers.
  • This two-layer arrangement enables a tube to be designed with a high degree of rigidity.
  • the inner and outer band material are advantageously arranged offset from one another, so that a high degree of overlap can be formed.
  • the inner and outer layers are wound in such a way that the edge areas of the strip material are butted. This enables a so-called sandwich construction.
  • the coating is formed from corn starch or dextrose-containing materials that can be welded by heat. To a certain extent, this coating is also moisture-impregnating. This coating can advantageously be destroyed by bacteria, which are basically present in composting.
  • a cutting device is provided with a rotor which is at its free end Has cutting knife.
  • This cutting knife is advantageously driven by a three-phase motor, which sets the rotor in sinusoidal rotational movements.
  • the rotor is constantly in motion.
  • the rotor has a stop-and-go operation. After each full revolution, the rotor is stopped briefly until the required tube length has passed the interface before it is driven again.
  • the rotor can be started, for example, as a function of the measured and wound length of the strip material. It can thereby be achieved that the rotational speed is highest at the intersection, whereby a clean cut can be produced.
  • the length of the tube can be determined by the sinusoidal course of the angular velocity.
  • the axis of rotation of the rotor can be arranged at an acute angle to the direction of transport of the tube.
  • the cutting knife can pass diagonally through a cutting gap formed by two counterholders from top to bottom.
  • the tube can have a cut end surface which is formed at right angles to the longitudinal axis of the tube. Due to the diagonal course, the cutting knife can cross the cutting gap during the cut, essentially at the transport speed of the tube, so that when viewed at the point of intersection, the system is stationary and a clean cut surface can be formed.
  • FIG. 1 is a perspective view of a device for producing tubes according to the invention
  • FIG. 2 shows a schematically enlarged illustration of an adhesive device
  • Fig. 3 is a schematic representation of a cutting device
  • FIG. 4 shows a schematic view of the cutting device according to line III-III in FIG. 3.
  • FIG. 1 shows a perspective view of a device 11 for producing a tube 13.
  • Such tubes 13 can be drinking straws, for example, which can be produced from a coated strip material 12.
  • a device of this type for the production of stirred hoses and also cable insulation for telephone exchanges or other tubes or tubes which can also be used in other technological fields can be provided.
  • the diameter and the wall thickness of these tubes 13 can be adapted to the respective application.
  • the device according to the invention can be used to create tubes 13 which have a constant band thickness over the entire length.
  • 11 tubes 13 can be produced with this device, which can have a diameter of at least 3 mm in the lower limit region. An upper limit is given by the technologically sensible use of such tubes 13.
  • the strip material 12 is drawn off from a supply roll 16.
  • the supply roll 16 has a left and right guide disk 17, 18.
  • a brake element 19 can furthermore be provided between the guide disks, so that the web material 12 is drawn off in a controlled manner under a low tension from the supply roll 16.
  • the braking element 19 can be designed as a belt resting on at least part of the strip material 12 of the supply roll 16, which has a weight body at its free end.
  • the strip material 12 is fed to a winding mandrel 23 via a braking and / or guiding element 22.
  • a preheating station can be provided, which heats the strip material 12 to an elevated temperature before the strip material 12 is wound onto the winding mandrel 23.
  • the strip material 12 can become smoother. Furthermore, the production of the adhesive connection can be facilitated.
  • the winding mandrel 23 is connected to a winding device 24.
  • the winding device 24 is formed by an endless drive belt 26, which consists of two Drive rollers 27 is set in motion. One or both drive rollers 27 are driven by a drive motor 28 which is connected to the drive rollers 27 via a belt drive 29 or via a gear transmission or the like.
  • the drive belt 26 has a wrap 31 around the winding mandrel 23, the wrap 31 being provided on a run 32 which runs essentially parallel to the transport direction 21 of the strip material 12.
  • An opposite strand 33 can run in a straight line without attacking the winding mandrel 23. However, a cross arrangement of the strands 32 and 33 is preferably used.
  • the strip material 12 fed to the winding mandrel 23 is gripped by the wrap 31 of the drive belt 26, whereby on the one hand the strip material 12 is pulled off the supply roll 16 and on the other hand the strip material 12 is wound helically onto the winding mandrel 23.
  • the diameter of the winding mandrel 23 is forced onto the band material 12 by the loop 31.
  • the supply of the strip material 12 and the positioning of the winding mandrel 23 are arranged at a defined angle, preferably 45 °, to one another.
  • an overlap region 26 of the edge zones 37 of the band material 12 can be achieved, which has a region of overlap of 2 mm for a band material with a width of 15 mm, for example.
  • the overlap area can be made larger or smaller.
  • the overlap region 26 can be influenced and set by pivoting the drive rollers 27 to the winding mandrel 23.
  • the mandrel 23 is arranged on a holding device 38 and is easily exchangeable and can be adapted to different diameters of the tubes 12.
  • the winding mandrel 23 Near the holding device 38, the winding mandrel 23 has an air supply 39 which supplies cooling air into the winding mandrel 23 designed as a hollow body.
  • the mandrel 23 has openings 41 or slots which are arranged at regular intervals from one another and through which the cooling air can escape.
  • the tape material 12 according to the invention has a paper layer which has a weight of 50 to 150 g / m 2 .
  • the width of the strip material 12 can be designed differently, a width in the range between 10 and 25 mm, in particular 15 mm, having proven to be advantageous.
  • the paper serves as a carrier material for an upper and lower coating and is smoothed. Alternatively, non-smoothed material can also be processed.
  • the upper and lower coating is made of plastic, advantageously polyethylene being applied.
  • the upper and lower layers are thin in relation to the paper and have a weight of, for example, 20 g / m 2 . When coating the strip material 12, it must be taken into account that the percentage of the coating compared to the proportion of paper is less than 20%, a range between 5 and 10% advantageously being provided.
  • paper for example with a weight of 90 to 140 g / m 2, can also be provided, as a result of which a higher buckling stiffness can also be achieved.
  • the coatings have different thicknesses, so that, for example, a coating on the inside of the tube can be made stronger than that on the outside of the tube.
  • the ratio can also be reversed.
  • the tube 13 is fed to an adhesive device 46.
  • the adhesive device 46 is designed as a device that supplies energy to the overlap region 36 of the edge zones 37, as shown enlarged in FIG. 2.
  • the coating of the strip material 12 is influenced in such a way that a change in the state of aggregation is brought about, as a result of which an adhesive connection between the overlapping edge zones 37 of the strip material 12 can be produced in the overlap region 36.
  • the adhesive device 46 is designed as an ultrasound head which has a sonotrode tip 51 which essentially corresponds to the width of the overlap region 36. It can also be provided that the tip is wider or narrower than the overlap region 36.
  • the adhesive device 46 acts on the overlapping surface under contact or without contact with ultrasonic vibrations. rich 36, whereby heat is supplied and the peripheral zones 37 are glued.
  • the supply of heat heats and melts the polyethylene coating. Temperatures between 80 and 160 ° are reached in which the polyethylene can be processed. The adjoining coatings of the edge zones 37 in the overlap area 36 can thus be fused together.
  • the sonotrode tip 51 can advantageously be adapted to the outer diameter of the mandrel 23 and at least partially rest against the mandrel 23 over a segment region. This can make it possible that despite a high transport speed of the strip material 12, which can be up to 120 m / min, the coating can melt and an adhesive connection can be produced to produce a stiff tube 13.
  • the sonotrode tip 51 is exchangeably arranged on the ultrasound head of the adhesive device 46. This width and size can be adapted to the overlap area 36. Likewise, the ultrasonic vibrations can be adapted to the type of strip material 12, so that the heat supply can be regulated and selectively adjusted depending on the coating thickness and the type of coating.
  • the endless tube formed on the winding mandrel 23 is fed to the winding device 24 after the adhesive device 46.
  • the adhesive device 46 is arranged behind the winding device 24 or close to the free end 47 of the winding mandrel 23, so that rapid cooling can take place after the action of heat, in order to ensure that the adhesive connection cannot become detached afterwards.
  • the coating flowing out of the edge zones 37 may not reach the winding mandrel 23, so that the tube 13 can be removed from the winding mandrel 23 without friction.
  • a coated strip material 12 which has no adhesive properties when heated.
  • an adhesive station is arranged in front of the winding mandrel 23, which applies strip material in the edge zones 37 so that an endless tube is wound on the winding mandrel 23 can be.
  • the adhesive device 46 can also be used here, or a roller device which applies the required contact pressure to the edge zones so that an adhesive connection can be created.
  • the endless tube formed on the mandrel 23 in connection with the gluing device 46 is fed via a guide element 54 to a cutting device 56 which cuts the tubes 13 to a predetermined length.
  • the cut tubes 13 are received in a container 57.
  • the cutting device 56 is shown schematically.
  • the cutting device 56 consists of a drive motor 61 which drives a rotor 63 via an axis of rotation 62.
  • a cutting knife 66 is provided which passes through a cutting gap 67 during one revolution, which is formed by left and right counterholders 68, 69.
  • the counterholders 68, 69 have a bore 71 with insertion bevels 72, in which the endless tube fed on the guide element 54 runs.
  • the tube separated after a cutting process in the left counter holder 68 is ejected from the counter holder 68 by the subsequent transport in the transport direction 21 of the endless tube and is collected in the container 47.
  • the axis of rotation of the drive motor 61 which is advantageously designed as a controllable three-phase motor, is at an acute angle ⁇ to a horizontal in which the endless tube is transported.
  • the cutting knife 66 runs through the cutting gap 67 in a diagonal, the diagonal running from the top right to the bottom left.
  • This setting at an acute angle ⁇ has the advantage that a right-angled cut surface to the tube 13 can be created.
  • the rotor 63 of the drive motor 61 is driven sinusoidally via a control.
  • the highest speed of the cutting knife 66 lies in the cutting gap 67 so that a clean cut can be made.
  • the length of the tube 13 can be adjustable by controlling the speed of rotation of the rotor 63 according to a sinusoidal course.
  • the cutting knife 66 is arranged at an angle ⁇ to the free end 64 of the rotor 63, so that the cutting depth is continuous as it passes through the cutting gap 67 increases. This enables a clean cut to be achieved.
  • the cutting knife 66 can be adjusted in its angular position to the size of the diameter, so that, for example with a large diameter of the tube 13, a large angle ⁇ must be selected so that a complete cut is made.

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Abstract

The invention concerns a device for producing tubes, in particular drinking straws, from at least one strip-shaped sheet material (12). The device has a winding-on mandrel (23) and a winding device (24) comprising an endless belt (26) which has at least one complete loop (31) rotating about the winding-up mandrel (23). The sheet material (12) is wound up helically onto the winding-up mandrel (23) and forms a tube (13), the edge regions (37) of the sheet material (12) forming an overlap region (36) in which an adhesive connection is provided. The adhesive connection can be produced by an adhesive device (46) which imparts energy at least to the edge regions (37) in the overlap region (36) of a coated sheet material (12).

Description

Vorrichtung zur Herstellung eines Röhrchens Device for producing a tube

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines Röhrchens, insbesondere eines Trinkröhrchens gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for producing a tube, in particular a drinking tube, according to the preamble of patent claim 1.

Aus der US-PS 2 128 564 ist eine Vorrichtung zur Herstellung von Trinkhalmen be¬ kannt geworden, bei der endloses, streifenförmiges Bandmaterial aus Papier über eine Wickel Vorrichtung und einem Aufspuldom schraubenförmig zur Bildung eines Röhrchens aufgewickelt wird. Von dem dadurch gebildeten Rohrstück werden mit einer scherenartigen Schneidvorrichtung Trinkhalme entsprechend einer vorbestimmten Länge abgeschnitten.From US Pat. No. 2,128,564 a device for the production of drinking straws has become known, in which endless, strip-shaped tape material made of paper is wound helically over a winding device and a winding mandrel to form a tube. Drinking straws corresponding to a predetermined length are cut off from the tube piece thus formed with scissors-like cutting device.

Die Zuführung des Bandmaterials von einer Vorratsrolle zur Wickelvorrichtung ist in ei¬ nem bestimmten Winkel vorgesehen, der den Bereich der überlappenden Randzonen des Bandmaterials zur Bildung eines Röhrchens bestimmt. Bevor das Bandmaterial auf dem Aufspuldorn aufgewickelt wird, durchläuft es eine Klebevorrichtung, wodurch auf die Randzonen im Überlappungsbereich flüssiger Klebstoff aufgetragen wird. Während des Aufwickelvorganges durch die Wickelvorrichtung werden die überlappenden Rand¬ zonen des Bandmaterials zueinander fixiert, so daß ein Röhrchen gebildet ist, das von dem Aufspuldom in Richtung auf die Schneidvorrichtung abtransportiert werden kann. Nachdem die Schneidvorrichtung die Röhrchen auf die gewünschte Länge abgeschnitten hat, werden die Röhrchen in Paraffin oder ein weiteres das Papier gegen Feuchtigkeit versiegelndes Medium getaucht, um es als Trinkhalm einsetzen zu können.The supply of the strip material from a supply roll to the winding device is provided at a certain angle, which determines the area of the overlapping edge zones of the strip material to form a tube. Before the tape material is wound on the winding mandrel, it passes through an adhesive device, as a result of which liquid adhesive is applied to the edge zones in the overlap area. During the winding process by the winding device, the overlapping edge zones of the strip material are fixed to one another, so that a tube is formed which can be transported away from the winding mandrel in the direction of the cutting device. After cutting the tubes to the desired length cut off, the tubes are immersed in paraffin or another medium that seals the paper against moisture so that they can be used as drinking straws.

Eine derartige Vorrichtung zur Herstellung eines Trinkhalms weist den Nachteil auf, daß eine aufwendige Ausgestaltung einer Klebevorrichtung vorgesehen ist, die nur einen ganz bestimmten Betrag an Klebstoff auf das Bandmaterial auftragen darf und dieser in der Randzone begrenzbar und einstellbar sein muß. Darüber hinaus besteht die Ge¬ fahr, daß selbst bei geringem Überschuß an aufgetragenem Klebstoff während des Auf¬ wickelvorgangs der Klebstoff seitlich aus dem Überlappungsbereich austreten und somit auf den Aufspuldorn aufgetragen werden kann, wodurch ein Verkleben bzw. zu¬ mindest ein erschwertes Aufwickeln zwischen dem Aufspuldorn und Bandmaterial ge¬ geben sein kann. Des weiteren kann auch der Fall auftreten, daß der Klebstoffauftrag zu gering ist, so daß Überlappungsbereiche ohne Klebverbindung vorliegen können. Dadurch kann es zu Störungen des Produktionsablaufes kommen, da das wendel- bzw. schraubenförmige Bandmaterial sich aufweitet und seine Wendelform auflösen kann.Such a device for producing a drinking straw has the disadvantage that a complex design of an adhesive device is provided which is only allowed to apply a very specific amount of adhesive to the strip material and which must be able to be limited and adjusted in the edge zone. In addition, there is a risk that even with a small excess of applied adhesive during the winding process, the adhesive will emerge laterally from the overlap area and can therefore be applied to the winding mandrel, which means that bonding or at least difficult winding between the Winding mandrel and band material can be given. Furthermore, there may also be the case that the adhesive application is too low, so that overlap areas can be present without an adhesive connection. This can lead to disruptions in the production process, since the helical or helical strip material expands and its helical shape can dissolve.

Des weiteren ist nachteilig, daß zur Herstellung derartiger Trinkhalme das Papier mit Paraffin beschichtet wird oder daß paraffinierte Papierbandmaterialien verwendet wer¬ den. Durch die Unlöslichkeit in Wasser und in hochprozentigem Alkohol des Paraffin ist eine Entsorgung von derartigen paraffinierten Trinkhalmen heutzutage nicht mehr zuge¬ lassen, so daß die Vorteile des Paraffins als färb-, geruch- und geschmackloses Imprägnierungsmittel für Trinkhalme nicht mehr eingesetzt werden kann.A further disadvantage is that the paper is coated with paraffin for the production of such drinking straws or that paraffinated paper tape materials are used. Due to the insolubility in water and in high-percentage alcohol of the paraffin, the disposal of such paraffinated straws is no longer permitted, so that the advantages of paraffin as a colorless, odorless and tasteless impregnating agent for straws can no longer be used.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung für die Verarbei¬ tung von einem Bandmaterial zu schaffen, das eine einfache und sichere Verbindung des Bandmaterials im Überlappungsbereich des aufgewickelten schraubenförmigen Bandmaterials ermöglicht und ein Bandmaterial zur Herstellung der Röhrchen verwen¬ det werden kann, das entsorgbar und recycelbar ist.The invention is therefore based on the object of providing a device for processing a strip material which enables simple and secure connection of the strip material in the overlap region of the wound helical strip material and a strip material which can be used to produce the tubes, which is disposable and recyclable.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Hauptanspruchs gelöst.This object is achieved by the characterizing features of the main claim.

Durch die Verwendung eines nicht mit Paraffin beschichteten Bandmaterials und einer energiezuführenden Klebevorrichtung ist ermöglicht, daß biologisch abbaubares Bandmaterial verwendet werden kann, das die erforderlichen Imprägniereigenschaften, beispielsweise für die Verwendung als Trinkhalme, aufweisen kann und gleichzeitig eine zufriedenstellende Klebeverbindung im Überlappungsbereich des wendeiförmig angeordneten Bandmaterials ermöglicht.The use of a tape material not coated with paraffin and an energy-supplying adhesive device enables biodegradable Tape material can be used, which can have the required impregnation properties, for example for use as drinking straws, and at the same time enables a satisfactory adhesive connection in the overlap area of the helically arranged tape material.

Des weiteren weist die erfindungsgemäße Klebevorrichtung den Vorteil auf, daß eine einfache und schnell auf den Überlappungsbereich einstellbare Klebevorrichtung geschaffen ist, die eine sichere Klebeverbindung schafft. Durch die Energiezuführung kann erreicht werden, daß die Oberflächen des beschichteten Materials in einen Zustand übergeführt werden können, in dem diese sich miteinander verbinden und nach Beendigung der Einwirkdauer eine feste Verbindung bilden können. Dabei ist vor¬ teilhafterweise vorgesehen, daß die Energie punktuell oder flächenförmig aufbringbar ist.Furthermore, the adhesive device according to the invention has the advantage that a simple and quickly adjustable adhesive device is created, which creates a secure adhesive connection. Through the supply of energy it can be achieved that the surfaces of the coated material can be brought into a state in which they bond to one another and can form a firm connection after the end of the exposure time. It is advantageously provided that the energy can be applied selectively or in planar form.

Des weiteren weist die erfindungsgemäße Ausgestaltung der Klebevorrichtung den Vorteil auf, daß eine Klebeverbindung geschaffen werden kann, ohne daß zusätzliche Klebstoffe oder Hilfsmittel eingesetzt werden, die für die Bildung einer sicheren Klebe¬ verbindung erforderlich ist. Dadurch kann beispielsweise Klebstoff eingespart werden. Des weiteren kann eine weitere Komponente zur Herstellung eines Röhrchens entfal¬ len, das die hohen Anforderungen hinsichtlich der Entsorgung und Recyclingsfähigkeit erfüllen müßte.Furthermore, the design of the adhesive device according to the invention has the advantage that an adhesive connection can be created without the use of additional adhesives or auxiliaries which are necessary for the formation of a secure adhesive connection. This can save adhesive, for example. Furthermore, a further component for the production of a tube can be omitted which would have to meet the high requirements with regard to disposal and recyclability.

Des weiteren weist die erfindungsgemäße Klebevorrichtung den Vorteil auf, daß in Abhängigkeit des verwendeten Bandmaterials mit einer entsprechenden Beschichtung die Art der Energiezuführung frei wählbar und an das Bandmaterial als auch an die Ver¬ arbeitungsgeschwindigkeiten anpaßbar sein kann. Vorteilhafterweise kann die Energie¬ zufuhr in Form von Wärme, von Wellen, von Strahlen oder dergleichen vorgesehen sein.Furthermore, the adhesive device according to the invention has the advantage that, depending on the tape material used, with a corresponding coating, the type of energy supply can be freely selected and can be adapted to the tape material and to the processing speeds. The supply of energy can advantageously be provided in the form of heat, waves, rays or the like.

Nach einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die Klebevor¬ richtung als ein Ultraschallkopf ausgebildet ist. Dieser weist vorteilhafterweise eine Sonotrodenspitze auf, die auf die Breite der Klebeverbindung bzw. die Breite des Über¬ lappungsbereiches anpaßbar ist, so daß beispielsweise über die gesamte Breite der sich überlappenden Randzonen eine Klebeverbindung herstellbar ist. In Abhängigkeit des Bandmaterials und der Beschichtung kann die Ultraschallfrequenz wählbar sein, wobei oberhalb von 20 KHz, vorzugsweise in einem Bereich von 30 bis 60 KHz, die Sonotrodenspitze betrieben wird.According to an advantageous embodiment of the invention, it is provided that the adhesive device is designed as an ultrasound head. This advantageously has a sonotrode tip which can be adapted to the width of the adhesive connection or the width of the overlap area, so that, for example, an adhesive connection can be produced over the entire width of the overlapping edge zones. Dependent on The ultrasound frequency of the strip material and the coating can be selectable, the sonotrode tip being operated above 20 KHz, preferably in a range from 30 to 60 KHz.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die Klebevorrichtung als Laser ausgebildet ist. Dadurch kann ein gebündelter Lichtstrahl mit einer hohen Energie auf den Uberlappungsbereich einwirken und eine schnelle An- bzw. Aufschmelzung der Beschichtung bewirken, so daß auch bei sehr hohen Arbeits¬ geschwindigkeiten eine zufriedenstellende Klebeverbindung herstellbar sein kann.According to a further advantageous embodiment of the invention it is provided that the adhesive device is designed as a laser. As a result, a bundled light beam with high energy can act on the overlap area and cause the coating to melt or melt quickly, so that a satisfactory adhesive bond can be produced even at very high working speeds.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die Klebevorrichtung elektromagnetische Wellen aussendet. Die Klebevorrichtung kann als Lichtquelle ausgebildet sein, die eine die Lichtstrahlen bündelnde und einstellbare Fo- kussiereinrichtung aufweist. In Analogie zum Laser können hier ebenso Wellen auf den Überlappungsbereich einwirken, wobei im Vergleich zum Laser eine noch kostengünstigere Ausgestaltung gegeben sein kann.According to a further advantageous embodiment of the invention, it is provided that the adhesive device emits electromagnetic waves. The adhesive device can be designed as a light source, which has a focusing device that bundles and adjusts the light beams. Analogous to the laser, waves can also act on the overlap area here, whereby an even more cost-effective design can be achieved compared to the laser.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die Klebeverbindung nach dem Aufwickelvorgang herstellbar ist. Die Klebevorrichtung ist vorteilhafterweise nach der Wickelvorrichtung vorgesehen. Das Bandmaterial kann so¬ mit direkt von der Vorratsrolle dem Aufspuldorn zugeführt werden, wobei zunächst das Bandmaterial mittels der Wickelvorrichtung in eine wendeiförmige Röhrchenform über¬ geführt wird. Anschließend wird in dem Überlappungsbereich durch die Klebevorrich¬ tung eine Klebeverbindung zwischen dem Bandmaterial geschaffen. Dies hat den Vorteil, daß bei einem ggfs. zu starken Einwirken der Energie und An- bzw. Aufschmel¬ zen der Oberflächen des Bandmaterials eine Verklebung mit dem Aufspuldorn vermie¬ den werden kann, da unmittelbar nach der Energieeinwirkung dieser Übergangsbereich den Aufspuldorn verläßt. Darüber hinaus weist diese Anordnung den Vorteil auf, daß nachfolgend eine schnelle Abkühlung gegeben sein kann, so daß eine definierte ge¬ zielte Wärmeeinwirkung und dadurch eine definierte Klebeverbindung geschaffen wer¬ den kann.According to a further advantageous embodiment of the invention, it is provided that the adhesive connection can be produced after the winding process. The adhesive device is advantageously provided after the winding device. The strip material can thus be fed directly from the supply roll to the winding mandrel, the strip material first being converted into a helical tube shape by means of the winding device. The adhesive device then creates an adhesive connection between the strip material in the overlap area. This has the advantage that in the event of excessive action of the energy and melting or melting of the surfaces of the strip material, adhesion with the winding mandrel can be avoided, since this transition region leaves the winding mandrel immediately after the energy has been applied. In addition, this arrangement has the advantage that rapid cooling can subsequently take place, so that a defined targeted heat effect and thereby a defined adhesive connection can be created.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß das Bandmaterial eine Kunststoffbeschichtung, vorteilhafterweise eine Beschichtung aus 5According to a further advantageous embodiment of the invention, it is provided that the strip material is made of a plastic coating, advantageously a coating 5

Polyethylen aufweist. Diese Kunststoffbeschichtung liegt zu dem aus Papier ausgebil¬ deten Bandmaterial in einem Verhältnis von weniger als 20 Gewichtsprozent vor. Da¬ durch ist ein derartiges Röhrchen problemlos entsorgbar und liegt weit innerhalb der geltenden Vorschriften für die Entsorgung und Recyclingsfähigkeit.Has polyethylene. This plastic coating is present in a ratio of less than 20 percent by weight to the strip material formed from paper. As a result, such a tube can be disposed of without any problems and is well within the applicable regulations for disposal and recyclability.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß ein Bandmaterial mit einer beidseitigen Beschichtung von 5 bis 25 g/m2 ausgebildet ist, und daß als Trägermaterial ein 70 bis 140 g/m2 Papier verwendet werden kann. Durch die Stärke des Papiers kann die Eigensteifigkeit des Röhrchens erhöht werden und somit höheren Knickbelastungen standhalten. Es kann des weiteren vorteilhafterweise ein 110 g/m2 Papier vorgesehen sein. Gleichzeitig kann der prozentuale Anteil der Kunst¬ stoffbeschichtung angepaßt werden, wobei ein besonders steifes Röhrchen bei einem 110 g/m2 Papier und einer beidseitigen Beschichtung von 10 g Kunststoff gebildet wer¬ den kann.According to a further advantageous embodiment of the invention it is provided that a tape material is formed with a double-sided coating of 5 to 25 g / m 2 , and that 70 to 140 g / m 2 paper can be used as the carrier material. The strength of the paper can increase the inherent rigidity of the tube and thus withstand higher kink loads. Furthermore, a 110 g / m 2 paper can advantageously be provided. At the same time, the percentage of the plastic coating can be adjusted, it being possible to form a particularly stiff tube with 110 g / m 2 paper and a coating on both sides of 10 g plastic.

Durch die zweiseitige Beschichtung kann das Röhrchen vorteilhafterweise mit einem Bandmaterial herstellbar sein. Alternativ kann ebenso erfindungsgemäß vorgesehen sein, daß ein zweiseitig beschichtetes Bandmaterial eingesetzt wird, wobei dann das Röhrchen zweilagig gewickelt wird. Durch diese zweilagige Anordnung kann ein Röhrchen mit einer hohen Steifigkeit ausgebildet sein. Das innere und äußere Band¬ material sind vorteilhafterweise versetzt zueinander angeordnet, so daß ein hoher Überlappungsgrad gebildet sein kann. Die innere und äußere Lage sind dabei derart gewickelt, daß die Randbereiche des Bandmaterials auf Stoß liegen. Dadurch ist eine sogenannte Sandwichkonstruktion möglich.Due to the two-sided coating, the tube can advantageously be produced with a strip material. Alternatively, it can also be provided according to the invention that a double-sided coated strip material is used, in which case the tube is then wound in two layers. This two-layer arrangement enables a tube to be designed with a high degree of rigidity. The inner and outer band material are advantageously arranged offset from one another, so that a high degree of overlap can be formed. The inner and outer layers are wound in such a way that the edge areas of the strip material are butted. This enables a so-called sandwich construction.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung kann vorgesehen sein, daß die Beschichtung aus Maisstärke oder dextrosehaltigen Materialien, die über Wärme schweißbar sind, ausgebildet ist. Diese Beschichtung ist bis zu einem bestimm¬ ten Grad ebenso feuchtigkeitsimprägnierend. Vorteilhafterweise kann diese Beschich¬ tung durch Bakterien, die bei einer Kompostierung grundsätzlich vorliegen, zerstört werden.According to a further advantageous embodiment of the invention, it can be provided that the coating is formed from corn starch or dextrose-containing materials that can be welded by heat. To a certain extent, this coating is also moisture-impregnating. This coating can advantageously be destroyed by bacteria, which are basically present in composting.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß eine Schneidvorrichtung mit einem Rotor vorgesehen ist, der an dessen freien Ende ein Schneidmesser aufweist. Dieses Schneidmesser wird vorteilhafterweise mit einem Drehstrommotor angetrieben, der den Rotor in sinusförmige Rotationsbewegungen ver¬ setzt. Dabei ist der Rotor ständig in Bewegung. Es kann alternativ ebenso vorgesehen sein, daß der Rotor einen Stop-and-Go-Betrieb aufweist. Nach jeder vollen Umdrehung wird der Rotor kurz angehalten, bis die erforderliche Rohrlänge die Schnittstelle pas¬ siert hat, bevor dieser wieder angetrieben wird. Der Start des Rotors kann beispiels¬ weise in Abhängigkeit der gemessenen und aufgewickelten Länge des Bandmaterials erfolgen. Dadurch kann erzielt werden, daß im Schnittpunkt die Rotationsgeschwindig¬ keit am höchsten ist, wodurch ein sauberer Schnitt herstellbar ist. Des weiteren kann durch den sinusförmigen Verlauf der Winkelgeschwindigkeit die Länge des Röhrchens bestimmt werden.According to a further advantageous embodiment of the invention, it is provided that a cutting device is provided with a rotor which is at its free end Has cutting knife. This cutting knife is advantageously driven by a three-phase motor, which sets the rotor in sinusoidal rotational movements. The rotor is constantly in motion. Alternatively, it can also be provided that the rotor has a stop-and-go operation. After each full revolution, the rotor is stopped briefly until the required tube length has passed the interface before it is driven again. The rotor can be started, for example, as a function of the measured and wound length of the strip material. It can thereby be achieved that the rotational speed is highest at the intersection, whereby a clean cut can be produced. Furthermore, the length of the tube can be determined by the sinusoidal course of the angular velocity.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die Rotationsachse des Rotors in einem spitzen Winkel zur Transportrichtung des Röhrchens anordenbar ist. Dadurch kann das Schneidmesser einen durch zwei Gegen¬ halter gebildeten Schneidspalt diagonal von oben nach unten durchlaufen. Durch diese vorteilhafte Anordnung kann erreicht werden, daß das Röhrchen eine Schnittendfläche aufweisen kann, die rechtwinklig zur Längsachse des Röhrchens ausgebildet ist. Durch den diagonalen Verlauf kann das Schneidmesser während des Schnittes im wesentli¬ chen mit der Transportgeschwindigkeit des Röhrchens den Schneidspalt durchqueren, so daß dadurch im Schnittpunkt gesehen das System ruhend ist und eine saubere Schnittfläche ausgebildet sein kann.According to a further advantageous embodiment of the invention it is provided that the axis of rotation of the rotor can be arranged at an acute angle to the direction of transport of the tube. As a result, the cutting knife can pass diagonally through a cutting gap formed by two counterholders from top to bottom. With this advantageous arrangement it can be achieved that the tube can have a cut end surface which is formed at right angles to the longitudinal axis of the tube. Due to the diagonal course, the cutting knife can cross the cutting gap during the cut, essentially at the transport speed of the tube, so that when viewed at the point of intersection, the system is stationary and a clean cut surface can be formed.

In den weiteren Unteransprüchen sind vorteilhafte Ausgestaltungen und Weiterbildun¬ gen der Erfindung angegeben.Advantageous refinements and developments of the invention are specified in the further subclaims.

In den Zeichnungen und der nachfolgenden Beschreibung ist ein erfindungsgemäßes Ausführungsbeispiel dargestellt. Es zeigen:An exemplary embodiment according to the invention is shown in the drawings and the description below. Show it:

Fig. 1 eine perspektivische Ansicht einer erfindungsgemäßen Vorrichtung zur Herstellung von Röhrchen,1 is a perspective view of a device for producing tubes according to the invention,

Fig. 2 eine schematisch vergrößerte Darstellung einer Klebevorrichtung, Fig. 3 eine schematische Darstellung einer Schneidvorrichtung und2 shows a schematically enlarged illustration of an adhesive device, Fig. 3 is a schematic representation of a cutting device and

Fig. 4 eine schematische Ansicht der Schneidvorrichtung gemäß Linie lll-lll in Fig. 3.4 shows a schematic view of the cutting device according to line III-III in FIG. 3.

In Fig. 1 ist eine perspektivische Ansicht einer Vorrichtung 11 zur Herstellung eines Röhrchens 13 dargestellt. Derartige Röhrchen 13 können beispielsweise Trinkhalme sein, die aus einem beschichteten Bandmaterial 12 herstellbar sind. Des weiteren kann eine derartige Vorrichtung zur Herstellung von Rührschläuchen als auch Kabelisolierun¬ gen für Telefonzentralen oder weiteren auch auf anderen technologischen Gebieten anwendbaren Röhren oder Röhrchen vorgesehen sein. Diese Röhrchen 13 können in ihrem Durchmesser als auch in ihrer Wanddicke an die jeweiligen Anwendungsfälle an¬ paßbar sein. Durch die erfindungsgemäße Vorrichtung können Röhrchen 13 geschaf¬ fen sein, die über die gesamte Länge eine konstante Bandstärke aufweisen. Des weiteren lassen sich mit dieser Vorrichtung 11 Röhrchen 13 herstellen, die im unteren Grenzbereich einen Durchmesser von wenigstens 3 mm aufweisen können. Eine obere Grenze ist durch die technologisch noch sinnvolle Anwendung von derartigen Röhrchen 13 gegeben.1 shows a perspective view of a device 11 for producing a tube 13. Such tubes 13 can be drinking straws, for example, which can be produced from a coated strip material 12. Furthermore, a device of this type for the production of stirred hoses and also cable insulation for telephone exchanges or other tubes or tubes which can also be used in other technological fields can be provided. The diameter and the wall thickness of these tubes 13 can be adapted to the respective application. The device according to the invention can be used to create tubes 13 which have a constant band thickness over the entire length. Furthermore, 11 tubes 13 can be produced with this device, which can have a diameter of at least 3 mm in the lower limit region. An upper limit is given by the technologically sensible use of such tubes 13.

Das Bandmaterial 12 wird von einer Vorratsrolle 16 abgezogen. Die Vorratsrolle 16 weist eine linke und rechte Führungsscheibe 17, 18 auf. Zwischen den Führungsschei¬ ben kann des weiteren ein Bremselement 19 vorgesehen sein, damit ein kontrollierter Abzug des Bahnmaterials 12 unter einer geringen Spannung von der Vorratsrolle 16 gegeben ist. Das Bremselement 19 kann als ein auf zumindest einem Teil des Band¬ materials 12 der Vorratsrolle 16 aufliegender Riemen ausgebildet sein, der an dessen freiem Ende einen Gewichtskörper aufweist.The strip material 12 is drawn off from a supply roll 16. The supply roll 16 has a left and right guide disk 17, 18. A brake element 19 can furthermore be provided between the guide disks, so that the web material 12 is drawn off in a controlled manner under a low tension from the supply roll 16. The braking element 19 can be designed as a belt resting on at least part of the strip material 12 of the supply roll 16, which has a weight body at its free end.

Das Bandmaterial 12 wird über ein Brems- und/oder Führungselement 22 einem Auf¬ spuldorn 23 zugeführt. Alternativ kann eine Vorheizstation vorgesehen sein, die das Bandmaterial 12 auf eine erhöhte Temperatur erwärmt, bevor das Bandmaterial 12 auf den Aufspuldorn 23 aufgewickelt wird. Dadurch kann das Bandmaterial 12 geschmei¬ diger werden. Des weiteren kann die Herstellung der Klebeverbindung erleichtert sein.The strip material 12 is fed to a winding mandrel 23 via a braking and / or guiding element 22. Alternatively, a preheating station can be provided, which heats the strip material 12 to an elevated temperature before the strip material 12 is wound onto the winding mandrel 23. As a result, the strip material 12 can become smoother. Furthermore, the production of the adhesive connection can be facilitated.

Der Aufspuldorn 23 steht mit einer Wickelvorrichtung 24 in Verbindung. Die Wickelvor¬ richtung 24 ist durch einen endlosen Antriebsriemen 26 ausgebildet, der von zwei Antriebsrollen 27 in Bewegung gesetzt wird. Eine oder beide Antriebsrollen 27 sind von einem Antriebsmotor 28 angetrieben, der über einen Riemenantrieb 29 oder über ein Zahnradgetriebe oder dergleichen mit den Antriebsrollen 27 verbunden ist. Der An¬ triebsriemen 26 weist eine Umschlingung 31 um den Aufspuldorn 23 auf, wobei die Umschlingung 31 an einem Trum 32 vorgesehen ist, das im wesentlichen parallel zur Transportrichtung 21 des Bandmaterials 12 verläuft. Ein gegenüberliegendes Trum 33 kann geradlinig verlaufen, ohne an dem Aufspuldorn 23 anzugreifen. Bevorzugt wird je¬ doch eine Überkreuz-Anordnung der Trum 32 und 33 eingesetzt.The winding mandrel 23 is connected to a winding device 24. The winding device 24 is formed by an endless drive belt 26, which consists of two Drive rollers 27 is set in motion. One or both drive rollers 27 are driven by a drive motor 28 which is connected to the drive rollers 27 via a belt drive 29 or via a gear transmission or the like. The drive belt 26 has a wrap 31 around the winding mandrel 23, the wrap 31 being provided on a run 32 which runs essentially parallel to the transport direction 21 of the strip material 12. An opposite strand 33 can run in a straight line without attacking the winding mandrel 23. However, a cross arrangement of the strands 32 and 33 is preferably used.

Das dem Aufspuldorn 23 zugeführte Bandmaterial 12 wird von der Umschlingung 31 des Antriebsriemens 26 ergriffen, wodurch einerseits das Bandmaterial 12 von der Vor¬ ratsrolle 16 abgezogen wird und andererseits das Bandmaterial 12 wendeiförmig auf den Aufspuldorn 23 aufgewickelt wird. Durch die Umschlingung 31 wird dem Bandma¬ terial 12 der Durchmesser des Aufspuldorns 23 aufgezwungen.The strip material 12 fed to the winding mandrel 23 is gripped by the wrap 31 of the drive belt 26, whereby on the one hand the strip material 12 is pulled off the supply roll 16 and on the other hand the strip material 12 is wound helically onto the winding mandrel 23. The diameter of the winding mandrel 23 is forced onto the band material 12 by the loop 31.

Die Zuführung des Bandmaterials 12 und die Positionierung des Aufspuldoms 23 sind in einem definierten Winkel, vorzugsweise 45°, zueinander angeordnet. Dadurch kann ein Überlappungsbereich 26 der Randzonen 37 des Bandmaterials 12 erzielt werden, der bei einem Bandmaterial mit einer Breite von beispielsweise 15 mm einen Überlap¬ pungsbereich von 2 mm aufweist. In Abhängigkeit der Breite des Bandmaterials 12 und der Winkelanordnung kann der Überlappungsbereich größer oder kleiner ausgebildet sein. Durch die Verschwenkung der Antriebsrollen 27 zum Aufspuldorn 23 kann der Überlappungsbereich 26 beeinflußt und eingestellt werden.The supply of the strip material 12 and the positioning of the winding mandrel 23 are arranged at a defined angle, preferably 45 °, to one another. As a result, an overlap region 26 of the edge zones 37 of the band material 12 can be achieved, which has a region of overlap of 2 mm for a band material with a width of 15 mm, for example. Depending on the width of the strip material 12 and the angular arrangement, the overlap area can be made larger or smaller. The overlap region 26 can be influenced and set by pivoting the drive rollers 27 to the winding mandrel 23.

Der Aufspuldorn 23 ist an einer Haltevorrichtung 38 angeordnet und ist einfach aus¬ tauschbar und auf unterschiedliche Durchmesser der Röhrchen 12 anpaßbar. Nahe der Haltevorrichtung 38 weist der Aufspuldorn 23 eine Luftzufuhr 39 auf, die Kühlluft in den als Hohlkörper ausgebildeten Aufspuldorn 23 zuführt. Dadurch kann die während des Wickelvorganges der Wickelvorrichtung 24 auftretende Erwärmung durch Reibung mit Kühlluft gekühlt werden. Der Aufspuldorn 23 weist hierfür in regelmäßigen Abständen zueinander angeordnete Öffnungen 41 oder Schlitze auf, durch die die Kühlluft austre¬ ten kann. Das erfindungsgemäße Bandmaterial 12 weist eine Papierschicht auf, die ein Gewicht von 50 bis 150 g/m2 aufweist. Die Breite des Bandmaterials 12 kann unterschiedlich ausgebildet sein, wobei sich eine Breite im Bereich zwischen 10 und 25 mm, insbeson¬ dere von 15mm, als vorteilhaft erwiesen hat. Das Papier dient als Trägermaterial einer oberen und unteren Beschichtung und ist geglättet. Alternativ kann auch nicht geglättetes Material verarbeitet werden. Die obere und untere Beschichtung ist aus Kunststoff vorgesehen, wobei vorteilhafterweise Polyethylen aufgebracht ist. Die obere und untere Schicht ist im Verhältnis zum Papier dünn ausgebildet und weist ein Ge¬ wicht von beispielsweise 20g/m2 auf. Bei der Beschichtung des Bandmaterials 12 ist zu berücksichtigen, daß der prozentuale Anteil der Beschichtung gegenüber dem Anteil an Papier kleiner als 20% ist, wobei vorteilhafterweise ein Bereich zwischen 5 und 10 % vorzusehen ist.The mandrel 23 is arranged on a holding device 38 and is easily exchangeable and can be adapted to different diameters of the tubes 12. Near the holding device 38, the winding mandrel 23 has an air supply 39 which supplies cooling air into the winding mandrel 23 designed as a hollow body. As a result, the heating occurring during the winding process of the winding device 24 can be cooled by friction with cooling air. For this purpose, the mandrel 23 has openings 41 or slots which are arranged at regular intervals from one another and through which the cooling air can escape. The tape material 12 according to the invention has a paper layer which has a weight of 50 to 150 g / m 2 . The width of the strip material 12 can be designed differently, a width in the range between 10 and 25 mm, in particular 15 mm, having proven to be advantageous. The paper serves as a carrier material for an upper and lower coating and is smoothed. Alternatively, non-smoothed material can also be processed. The upper and lower coating is made of plastic, advantageously polyethylene being applied. The upper and lower layers are thin in relation to the paper and have a weight of, for example, 20 g / m 2 . When coating the strip material 12, it must be taken into account that the percentage of the coating compared to the proportion of paper is less than 20%, a range between 5 and 10% advantageously being provided.

Vorteilhafterweise kann auch Papier, beispielsweise mit einem Gewicht von 90 bis 140 g/m2 vorgesehen sein, wodurch auch eine höhere Knicksteifigkeit erzielt werden kann. Des weiteren kann vorgesehen sein, daß die Beschichtungen unterschiedlich stark ausgebildet sind, so daß beispielsweise eine Beschichtung auf der Röhrchen¬ innenseite stärker als die auf der Röhrchenaußenseite ausgebildet sein kann. Anwen¬ dungsspezifisch kann das Verhältnis auch umgekehrt sein.Advantageously, paper, for example with a weight of 90 to 140 g / m 2, can also be provided, as a result of which a higher buckling stiffness can also be achieved. Furthermore, it can be provided that the coatings have different thicknesses, so that, for example, a coating on the inside of the tube can be made stronger than that on the outside of the tube. Depending on the application, the ratio can also be reversed.

Nachdem das Bandmaterial 12 durch die Wickelvorrichtung 24 zumindest eine wen¬ deiförmige Umwicklung aufweist, wird das Röhrchen 13 einer Klebevorrichtung 46 zu¬ geführt. Die Klebevorrichtung 46 ist als eine auf den Überlappungsbereich 36 der Randzonen 37 energiezuführende Vorrichtung ausgebildet, wie in Fig. 2 vergrößert dar¬ gestellt ist. Dadurch wird die Beschichtung des Bandmaterials 12 derart beeinflußt, daß eine Änderung des Aggregatzustandes hervorgerufen wird, wodurch im Überlappungs¬ bereich 36 eine Klebeverbindung zwischen den sich überlappenden Randzonen 37 des Bandmaterials 12 herstellbar ist.After the tape material 12 has at least one helical wrap through the winding device 24, the tube 13 is fed to an adhesive device 46. The adhesive device 46 is designed as a device that supplies energy to the overlap region 36 of the edge zones 37, as shown enlarged in FIG. 2. As a result, the coating of the strip material 12 is influenced in such a way that a change in the state of aggregation is brought about, as a result of which an adhesive connection between the overlapping edge zones 37 of the strip material 12 can be produced in the overlap region 36.

Die Klebevorrichtung 46 ist als ein Ultraschallkopf ausgebildet, der eine Sonotroden¬ spitze 51 aufweist, die im wesentlichen der Breite des Überlappungsbereiches 36 entspricht. Es kann ebenso vorgesehen sein, daß die Spitze breiter oder schmaler als der Überlappungsbereich 36 ausgebildet ist. Die Klebevorrichtung 46 wirkt unter Berührung oder berührungslos mit Ultraschallschwingungen auf den Überlappungsbe- reich 36 ein, wodurch eine Wärmezufuhr gegeben ist und eine Verklebung der Randzo¬ nen 37 erfolgt.The adhesive device 46 is designed as an ultrasound head which has a sonotrode tip 51 which essentially corresponds to the width of the overlap region 36. It can also be provided that the tip is wider or narrower than the overlap region 36. The adhesive device 46 acts on the overlapping surface under contact or without contact with ultrasonic vibrations. rich 36, whereby heat is supplied and the peripheral zones 37 are glued.

Durch die Wärmezufuhr wird die Polyethylenbeschichtung erwärmt und aufgeschmol¬ zen. Dabei werden Temperaturen zwischen 80 und 160° erreicht, in denen das Poly¬ ethylen verarbeitbar ist. Die aneinanderliegenden Beschichtungen der Randzonen 37 im Überlappungsbereich 36 können somit miteinander verschmolzen werden.The supply of heat heats and melts the polyethylene coating. Temperatures between 80 and 160 ° are reached in which the polyethylene can be processed. The adjoining coatings of the edge zones 37 in the overlap area 36 can thus be fused together.

Die Sonotrodenspitze 51 kann vorteilhafterweise an den Außendurchmesser des Auf- spuldorns 23 angepaßt sein und zumindest teilweise über ein Segmentbereich an dem Aufspuldorn 23 anliegen. Dadurch kann ermöglicht sein, daß trotz einer hohen Trans¬ portgeschwindigkeit des Bandmaterials 12, die bis zu 120 m/min betragen kann, ein Aufschmelzen der Beschichtung und eine Klebeverbindung zur Herstellung eines stei¬ fen Röhrchens 13 gegeben sein kann.The sonotrode tip 51 can advantageously be adapted to the outer diameter of the mandrel 23 and at least partially rest against the mandrel 23 over a segment region. This can make it possible that despite a high transport speed of the strip material 12, which can be up to 120 m / min, the coating can melt and an adhesive connection can be produced to produce a stiff tube 13.

Die Sonotrodenspitze 51 ist austauschbar an dem Ultraschallkopf der Klebevorrichtung 46 angeordnet. Diese kann in Breite und Größe an den Überlappungsbereich 36 an¬ paßbar sein. Ebenso können die Ultraschallschwingungen an die Art des Bandmate¬ rials 12 anpaßbar sein, so daß in Abhängigkeit der Beschichtungsstärke und der Beschichtungsart die Wärmezufuhr regelbar und punktuell einstellbar sein kann.The sonotrode tip 51 is exchangeably arranged on the ultrasound head of the adhesive device 46. This width and size can be adapted to the overlap area 36. Likewise, the ultrasonic vibrations can be adapted to the type of strip material 12, so that the heat supply can be regulated and selectively adjusted depending on the coating thickness and the type of coating.

Das auf dem Aufspuldorn 23 gebildete Endlosröhrchen wird nach der Klebevoπichtung 46 der Wickelvorrichtung 24 zugeführt. Alternativ kann auch vorgesehen sein, daß die Klebevorrichtung 46 hinter der Wickelvorrichtung 24 oder nahe an dem freien Ende 47 des Aufspuldoms 23 angeordnet ist, damit nach der Wärmeeinwirkung ein schnelles Abkühlen gegeben sein kann, um sicherzustellen, daß die Klebeverbindung sich nicht nachträglich lösen kann. Des weiteren kann ggfs. aus den Randzonen 37 abfließende Beschichtung nicht auf den Aufspuldom 23 gelangen, so daß ein reibungsfreier Ab¬ transport des Röhrchens 13 von dem Aufspuldorn 23 ermöglicht ist.The endless tube formed on the winding mandrel 23 is fed to the winding device 24 after the adhesive device 46. Alternatively, it can also be provided that the adhesive device 46 is arranged behind the winding device 24 or close to the free end 47 of the winding mandrel 23, so that rapid cooling can take place after the action of heat, in order to ensure that the adhesive connection cannot become detached afterwards. Furthermore, the coating flowing out of the edge zones 37 may not reach the winding mandrel 23, so that the tube 13 can be removed from the winding mandrel 23 without friction.

Alternativ kann vorgesehen sein, daß ein beschichtetes Bandmaterial 12 eingesetzt wird, welches bei Erwärmung keine Klebeeigenschaften aufweist. Dann ist vorteilhafter¬ weise vorgesehen, daß in Zuführrichtung des Bandmaterials 12 gesehen vor dem Auf¬ spuldorn 23 eine Klebestation angeordnet ist, die streifenförmig in den Randzonen 37 Klebematerial aufträgt, damit auf dem Auspuldorn 23 ein Endlosröhrchen gewickelt werden kann. Hierbei kann ebenfalls die Klebevorrichtung 46 verwendet werden oder eine Walzenvorrichtung, die den erforderlichen Anpreßdruck auf die Randzonen auf¬ bringt, damit eine Klebeverbindung geschaffen werden kann.Alternatively, it can be provided that a coated strip material 12 is used which has no adhesive properties when heated. Then it is advantageously provided that, seen in the feed direction of the strip material 12, an adhesive station is arranged in front of the winding mandrel 23, which applies strip material in the edge zones 37 so that an endless tube is wound on the winding mandrel 23 can be. The adhesive device 46 can also be used here, or a roller device which applies the required contact pressure to the edge zones so that an adhesive connection can be created.

Das auf dem Aufspuldorn 23 in Verbindung mit der Klebevorrichtung 46 gebildete Endlosröhrchen wird über ein Führungselement 54 einer Schneidvorrichtung 56 zu¬ geführt, die die Röhrchen 13 auf eine vorbestimmte Länge abschneidet. Die abge¬ schnittenen Röhrchen 13 werden in einem Behälter 57 aufgenommen.The endless tube formed on the mandrel 23 in connection with the gluing device 46 is fed via a guide element 54 to a cutting device 56 which cuts the tubes 13 to a predetermined length. The cut tubes 13 are received in a container 57.

In Fig. 3 und 4 ist die Schneidvorrichtung 56 schematisch dargestellt. Die Schneidvor¬ richtung 56 besteht aus einem Antriebsmotor 61 , der über eine Drehachse 62 einen Rotor 63 antreibt. An einem freien Ende 64 des Rotors 63 ist ein Schneidmesser 66 vorgesehen, das während einer Umdrehung einen Schneidspalt 67 durchläuft, der durch einen linken und rechten Gegenhalter 68, 69 gebildet ist. Die Gegenhalter 68, 69 weisen eine Bohrung 71 mit Einführschrägen 72 auf, in denen das auf dem Führungselement 54 zugeführte Endlosrohr läuft. Das nach einem Schnittvorgang im linken Gegenhalter 68 abgetrennte Röhrchen wird durch den nachfolgenden Transport in Transportrichtung 21 des Endlosröhrchens aus dem Gegenhalter 68 ausgestoßen und in dem Behälter 47 aufgefangen. Die Drehachse des Antriebsmotors 61 , der vor¬ teilhafterweise als regelbarer Drehstrommotor ausgebildet ist, steht in einem spitzen Winkel α zu einer Horizontalen, in der das Endlosröhrchen transportiert wird. Dadurch durchläuft das Schneidmesser 66 in einer Diagonalen den Schneidspalt 67, wobei die Diagonale von rechts oben nach links unten verläuft. Diese Einstellung in einem spitzen Winkel α weist den Vorteil auf, daß eine rechtwinklige Schnittfläche zu dem Röhrchen 13 geschaffen werden kann.3 and 4, the cutting device 56 is shown schematically. The cutting device 56 consists of a drive motor 61 which drives a rotor 63 via an axis of rotation 62. At a free end 64 of the rotor 63, a cutting knife 66 is provided which passes through a cutting gap 67 during one revolution, which is formed by left and right counterholders 68, 69. The counterholders 68, 69 have a bore 71 with insertion bevels 72, in which the endless tube fed on the guide element 54 runs. The tube separated after a cutting process in the left counter holder 68 is ejected from the counter holder 68 by the subsequent transport in the transport direction 21 of the endless tube and is collected in the container 47. The axis of rotation of the drive motor 61, which is advantageously designed as a controllable three-phase motor, is at an acute angle α to a horizontal in which the endless tube is transported. As a result, the cutting knife 66 runs through the cutting gap 67 in a diagonal, the diagonal running from the top right to the bottom left. This setting at an acute angle α has the advantage that a right-angled cut surface to the tube 13 can be created.

Der Rotor 63 des Antriebsmotors 61 wird über eine Steuerung sinusförmig angetrieben. Dabei liegt die höchste Geschwindigkeit des Schneidmessers 66 im Schneidspalt 67, damit ein sauberer Schnitt erfolgen kann. Durch die Ansteuerung der Rotationsge¬ schwindigkeit des Rotors 63 nach einem sinusförmigen Verlauf kann die Länge des Röhrchens 13 einstellbar sein.The rotor 63 of the drive motor 61 is driven sinusoidally via a control. The highest speed of the cutting knife 66 lies in the cutting gap 67 so that a clean cut can be made. The length of the tube 13 can be adjustable by controlling the speed of rotation of the rotor 63 according to a sinusoidal course.

Das Schneidmesser 66 ist unter einem Winkel δ zu dem freien Ende 64 des Rotors 63 angeordnet, so daß beim Durchlaufen des Schneidspaltes 67 die Schnittiefe stetig zunimmt. Dadurch kann ein sauberer Schnitt erzielt werden. Das Schneidmesser 66 kann in seiner Winkelposition auf die Größe des Durchmessers angepaßt werden, so daß bei beispielsweise einem großen Durchmesser des Röhrchens 13 ein großer Win¬ kel δ zu wählen ist, damit ein vollständiger Schnitt erfolgt. The cutting knife 66 is arranged at an angle δ to the free end 64 of the rotor 63, so that the cutting depth is continuous as it passes through the cutting gap 67 increases. This enables a clean cut to be achieved. The cutting knife 66 can be adjusted in its angular position to the size of the diameter, so that, for example with a large diameter of the tube 13, a large angle δ must be selected so that a complete cut is made.

Claims

Ansprüche Expectations 1. Vorrichtung zur Herstellung eines Röhrchens, insbesondere Trinkhalmen, aus zu¬ mindest einem streifenförmigen Bandmaterial (12), mit einem Aufspuldorn (23) und einer Winkelvorrichtung (24), die einen Endlosriemen (26) aufweist, der we¬ nigstens eine vollständige, den Aufspuldom (23) umlaufende Umschlingung (31 ) aufweist und das Bandmaterial (12) schraubenförmig auf den Aufspuldorn (23) aufwickelt und ein Röhrchen (13) bildet, wobei die Randzonen (37) des Band¬ materials (12) einen Überlappungsbereich (36) bilden, zwischen denen eine Kle¬ beverbindung vorgesehen ist, dadurch gekennzeichnet, daß die Klebeverbindung mit einer zumindest teilweise auf die Randzonen (37) im Überlappungsbereich (36) eines beschichteten Bandmateriais (12) energiezuführenden Klebevorrich¬ tung (46) herstellbar ist.1. Device for producing a tube, in particular drinking straws, from at least one strip-shaped band material (12), with a winding mandrel (23) and an angle device (24), which has an endless belt (26) that has at least one complete, has the winding spool (31) encircling the winding mandrel (23) and winds the tape material (12) helically onto the winding mandrel (23) and forms a tube (13), the edge zones (37) of the tape material (12) having an overlap area (36 ), between which an adhesive connection is provided, characterized in that the adhesive connection can be produced with an adhesive device (46) which supplies energy at least partially to the edge zones (37) in the overlap region (36) of a coated tape material (12). 2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die Klebeverbindung durch Wärmezufuhr der Klebevorrichtung (46) herstellbar ist.2. Device according to claim 1, characterized in that the adhesive connection can be produced by supplying heat to the adhesive device (46). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Energie¬ zufuhr der Klebevorrichtung (46) mit einer Steuerelektronik regelbar ist. 3. Apparatus according to claim 1 or 2, characterized in that the energy supply of the adhesive device (46) is controllable with control electronics. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich¬ net, daß die der Energiezufuhr der Klebevorrichtung (46) zumindest punktuell auf den Überlappungsbereich (36) aufbringbar ist.4. Device according to one of the preceding claims, characterized gekennzeich¬ net that the energy supply of the adhesive device (46) is at least selectively applied to the overlap area (36). 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich¬ net, daß das beschichtete Bandmaterial (12) durch Energiezufuhr auf einen Tem¬ peraturbereich bis 180° aufheizbar ist.5. Device according to one of the preceding claims, characterized in that the coated strip material (12) can be heated up to 180 ° by supplying energy to a temperature range. 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich¬ net, daß die Klebevorrichtung (46) als Ultraschallelement ausgebildet ist.6. Device according to one of the preceding claims, characterized gekennzeich¬ net that the adhesive device (46) is designed as an ultrasonic element. 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Ultraschallele¬ ment eine austauschbare Sonotrodenspitze (51 ) aufweist.7. The device according to claim 6, characterized in that the ultrasonic element has an exchangeable sonotrode tip (51). 8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Sonotro¬ denspitze (51) auf die Breite des Überlappungsbereichs (36) anpaßbar ist.8. The device according to claim 6 or 7, characterized in that the Sonotro¬ denspitze (51) to the width of the overlap area (36) is adjustable. 9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Sonotrodenspitze (51) auf den Außendurchmesser des Röhrchens (13) anpaßbar ist.9. Device according to one of claims 6 to 8, characterized in that the sonotrode tip (51) on the outer diameter of the tube (13) is adaptable. 10. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Klebevorrichtung (46) als Laser ausgebildet ist.10. Device according to one of claims 1 to 5, characterized in that the adhesive device (46) is designed as a laser. 11. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Klebevorrichtung (46) als Lichtquelle ausgebildet ist.11. Device according to one of claims 1 to 5, characterized in that the adhesive device (46) is designed as a light source. 12. Vorrichtung nach einem der Ansprüche 10 oder 11 , dadurch gekennzeichnet, daß die Klebevorrichtung eine den Lichtstrahl bündelnde und einstellbare Fokussier- einrichtung aufweist.12. Device according to one of claims 10 or 11, characterized in that the adhesive device has a focusing device which bundles and adjusts the light beam. 13. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich¬ net, daß die Klebevorrichtung (46) vor oder nach der Wickelvorrichtung (24), vorzugsweise nahe dem das Bandmaterial (12) zumindest eine vollständige Umschlingung aufweist, anordenbar ist.13. Device according to one of the preceding claims, characterized gekennzeich¬ net that the adhesive device (46) before or after the winding device (24), can preferably be arranged close to where the band material (12) has at least one complete loop. 14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich¬ net, daß der Aufspuldorn (23) zumindest eine Luftaustrittsöffnung (41 ) aufweist.14. Device according to one of the preceding claims, characterized gekennzeich¬ net that the mandrel (23) has at least one air outlet opening (41). 15. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Bandmaterial (12) auf einem 150 g/m2 Papier herstellbar ist.15. The apparatus according to claim 1, characterized in that the strip material (12) can be produced on 150 g / m 2 paper. 16. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Bandmaterial (12) aus einem 90 bis 140 g/m2 Papier hergestellt ist.16. The apparatus according to claim 1, characterized in that the strip material (12) is made from a 90 to 140 g / m 2 paper. 17. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Bandmaterial (12) aus geglättetem Papier hergestellt ist.17. The apparatus according to claim 1, characterized in that the strip material (12) is made of smooth paper. 18. Vorrichtung nach einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, daß das Bandmaterial (12) zumindest einseitig beschichtet ist.18. Device according to one of claims 15 to 17, characterized in that the strip material (12) is coated at least on one side. 19. Vorrichtung nach einem der Ansprüche15 bis 18, dadurch gekennzeichnet, daß das Bandmaterial (12) eine wasserfeste Beschichtung aufweist.19. Device according to one of claims 15 to 18, characterized in that the strip material (12) has a waterproof coating. 20. Vorrichtung nach einem der Ansprüche15 bis 19, dadurch gekennzeichnet, daß das Bandmaterial (12) eine recycelbare Beschichtung aufweist.20. Device according to one of claims 15 to 19, characterized in that the strip material (12) has a recyclable coating. 21. Vorrichtung nach einem der Ansprüche 15 bis 20, dadurch gekennzeichnet, daß die Beschichtung des Bandmaterials (12) aus Kunststoff ausgebildet ist.21. Device according to one of claims 15 to 20, characterized in that the coating of the strip material (12) is formed from plastic. 22. Vorrichtung nach Anspruch 21 , dadurch gekennzeichnet, daß die Beschichtung des Bandmaterials (12) aus Polyethylen ausgebildet ist.22. The apparatus according to claim 21, characterized in that the coating of the strip material (12) is formed from polyethylene. 23. Vorrichtung nach einem der Ansprüche 18 bis 20, dadurch gekennzeichnet, daß die Beschichtung des Bandmaterials (12) aus Maisstärke oder dektrosehaltigen Materialien ausgebildet ist. 23. Device according to one of claims 18 to 20, characterized in that the coating of the strip material (12) is formed from corn starch or materials containing detectors. 24. Vorrichtung nach einem der Ansprüςhe 15 bis 17, dadurch gekennzeichnet, daß die Beschichtung des Bandmaterials (12) zweiseitig vorgesehen ist.24. Device according to one of claims 15 to 17, characterized in that the coating of the strip material (12) is provided on two sides. 25. Vorrichtung nach Anspruch 24, dadurch gekennzeichnet, daß der prozentuale Ge¬ wichtsanteil der Beschichtung des Bandmaterials (12) im Verhältnis zum Gewichtsanteil des Papiermaterials kleiner als 20 % ist.25. The apparatus according to claim 24, characterized in that the percentage by weight of the coating of the strip material (12) in relation to the weight fraction of the paper material is less than 20%. 26. Vorrichtung nach Anspruch 24, dadurch gekennzeichnet, daß der prozentuale Ge¬ wichtsanteil der Beschichtung des Bandmaterials (12) im Verhältnis zum Gewichtsanteil des Papiermaterials im Bereich zwischen 5 und 10 % vorgesehen ist.26. The apparatus according to claim 24, characterized in that the percentage by weight of the coating of the strip material (12) in relation to the weight proportion of the paper material is provided in the range between 5 and 10%. 27. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Bandmaterial (12) aus einem geglätteten Papier mit einem Gewicht von 70 bis 140 g/m2 vorge¬ sehen ist, das eine beidseitige Beschichtung mit einem Gewicht von 5 bis 25 g/m2 Polyethylen aufweist.27. The apparatus according to claim 1, characterized in that the strip material (12) from a smoothed paper with a weight of 70 to 140 g / m 2 is seen easily, which is a double-sided coating with a weight of 5 to 25 g / m 2 has polyethylene. 28. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Röhrchen (13) zweitägig ausgebildet ist.28. The apparatus according to claim 1, characterized in that the tube (13) is formed in two days. 29. Vorrichtung nach Anspruch 27, dadurch gekennzeichnet, daß das Bandmaterial (12) zumindest einseitig beschichtet ist und in einer Sandwich-Konstruktion zueinander anordenbar ist.29. The device according to claim 27, characterized in that the strip material (12) is coated at least on one side and can be arranged in a sandwich construction to each other. 30. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Röhrchen (13) aus wenigstens zwei parallel zueinander aufwickelbaren Bandmaterialien (12) ausgebildet ist.30. The device according to claim 1, characterized in that the tube (13) is formed from at least two strip materials (12) which can be wound up parallel to one another. 31. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß eine Schneidvorrich¬ tung (56) mit wenigstens einem rotierenden Schneidmesser (66) vorgesehen ist, das eine auf die vorbestimmte Länge des Röhrchens (13) einstellbare Schneidfre¬ quenz aufweist. 31. The device according to claim 1, characterized in that a Schneidvorrich¬ device (56) with at least one rotating cutting knife (66) is provided which has a cutting frequency adjustable to the predetermined length of the tube (13). 32. Vorrichtung nach Anspruch 31 , dadurch gekennzeichnet, daß ein Rotor (63) mit einem an dessen freien Ende (64) angeordneten Schneidmesser (66) vorgesehen ist.32. Apparatus according to claim 31, characterized in that a rotor (63) is provided with a cutting knife (66) arranged at its free end (64). 33. Vorrichtung nach Anspruch 31 oder 32, dadurch gekennzeichnet, daß das Schneidmesser (66) austauschbar ist.33. Apparatus according to claim 31 or 32, characterized in that the cutting knife (66) is interchangeable. 34. Vorrichtung nach einem der Ansprüche 31 bis 33, dadurch gekennzeichnet, daß das Schneidmesser (66) in einem Winkel δ zu einer Stirnseite des Rotors (63) anordenbar ist und auf die durch den Durchmesser des Röhrchens (13) gebildete Schnittiefe unter dem Winkel δ einstellbar ist.34. Device according to one of claims 31 to 33, characterized in that the cutting knife (66) can be arranged at an angle δ to an end face of the rotor (63) and on the depth of cut formed by the diameter of the tube (13) at the angle δ is adjustable. 35. Vorrichtung nach einem der Ansprüche 31 bis 34, dadurch gekennzeichnet, daß das Schneidmesser (66) durch einen Schneidspalt (67) zwischen zwei das Röhrchen (13) führenden Gegenhaltem (68, 69) rotiert.35. Device according to one of claims 31 to 34, characterized in that the cutting knife (66) rotates through a cutting gap (67) between two the tube (13) leading counterhold (68, 69). 36. Vorrichtung nach Anspruch 35, dadurch gekennzeichnet, daß das Schneidmesser (66) auf einer Schnittbahn im wesentlichen diagonal von oben nach unten den Schneidspalt (67) durchläuft, wobei mit zunehmender Schnittiefe das Schneid¬ messer in Transportrichtung des Röhrchens (13) bewegbar ist.36. Apparatus according to claim 35, characterized in that the cutting knife (66) passes through the cutting gap (67) on a cutting path substantially diagonally from top to bottom, the cutting knife being movable in the transport direction of the tube (13) with increasing depth of cut . 37. Vorrichtung nach einem der Ansprüche 31 bis 36, dadurch gekennzeichnet, daß eine Drehachse (62) des Rotors (63) mit dem Schneidmesser (66) in einem spit¬ zen Winkel α zu einer Transportebene der Röhrchen (13) geneigt ist.37. Device according to one of claims 31 to 36, characterized in that an axis of rotation (62) of the rotor (63) with the cutting knife (66) is inclined at an acute angle α to a transport plane of the tubes (13). 38. Vorrichtung nach einem der Ansprüche 31 bis 37, dadurch gekennzeichnet, daß die Rotationsgeschwindigkeit des Schneidmessers (66) sinusförmig ausgebildet ist.38. Device according to one of claims 31 to 37, characterized in that the rotational speed of the cutting knife (66) is sinusoidal. 39. Vorrichtung nach einem der Ansprüche 31 bis 38, dadurch gekennzeichnet, daß die höchste Schnittgeschwindigkeit im Schneidspalt (67) vorgesehen ist. 39. Device according to one of claims 31 to 38, characterized in that the highest cutting speed is provided in the cutting gap (67). 40. Verfahren zur Herstellung eines Röhrchens, insbesondere von Trinkhalmen, bei dem ein Bandmaterial (12) in einem spitzen Winkel einem Aufspuldorn (23) zu¬ geführt wird, das Bandmaterial (12) schraubenförmig auf einen Aufspuldorn aufge¬ wickelt wird und eine Windung des Bandmaterials (12) mit einer nachfolgenden Windung einen Überlappungsbereich (36) bildet, der mit einer Vorrichtung (46) mediendicht verbunden wird.40. Method for producing a tube, in particular drinking straws, in which a band material (12) is fed to a winding mandrel (23) at an acute angle, the band material (12) is wound helically onto a winding mandrel and a winding of the Band material (12) with a subsequent turn forms an overlap area (36) which is connected to a device (46) in a media-tight manner. 41. Verfahren nach Anspruch 40, dadurch gekennzeichnet, daß die Randzonen (37) durch eine Klebevorrichtung (46) erwärmt werden und unter zumindest geringem Druck miteinander verklebt werden.41. The method according to claim 40, characterized in that the edge zones (37) are heated by an adhesive device (46) and are bonded to one another under at least low pressure. 42. Verfahren nach Anspruch 40 oder 41 , dadurch gekennzeichnet, daß das Band- material (12) kontinuierlich auf dem Aufspuldorn (23) aufgewickelt wird und mit ei¬ nem den Aufspuldom (23) nachgeschaltenen Schneidmesser (66) auf eine bestimmbare Länge abgeschnitten wird.42. The method according to claim 40 or 41, characterized in that the strip material (12) is continuously wound on the winding mandrel (23) and is cut to a definable length with a cutting knife (66) connected downstream of the winding mandrel (23) . 43. Verfahren nach einem der Ansprüche 40 bis 42, dadurch gekennzeichnet, daß die Rotation des Schneidmessers (66) in einem sinusförmigen Verlauf rotierend ange¬ trieben wird, dessen Amplitude auf die Länge des Röhrchens (13) und die Auf¬ wickelgeschwindigkeit angepaßt wird.43. The method according to any one of claims 40 to 42, characterized in that the rotation of the cutting knife (66) is driven to rotate in a sinusoidal shape, the amplitude of which is adapted to the length of the tube (13) and the winding speed. 44. Röhrchen, insbesondere Trinkhalm, dadurch gekennzeichnet, daß zur Herstellung eine Vorrichtung gemäß einem der Ansprüche 1 bis 39 vorgesehen ist.44. Tube, in particular drinking straw, characterized in that a device according to one of claims 1 to 39 is provided for the production. 45. Röhrchen, insbesondere Trinkhalm, dadurch gekennzeichnet, daß zur Herstellung ein Verfahren gemäß einem der Ansprüche 40 bis 43 vorgesehen ist.45. Tube, in particular drinking straw, characterized in that a method according to one of claims 40 to 43 is provided for the production. 46. Röhrchen nach Anspruch 44 oder 45, dadurch gekennzeichnet, daß ein zu des¬ sen Herstellung verwendetes, zumindest einseitig beschichtetes Bandmaterial (12) schraubenförmig aufgewickelt ist und sich überlappende Randzonen (37) mit einer Klebevorrichtung (46) aufweist. 46. Tube according to claim 44 or 45, characterized in that a strip material (12) used for its manufacture, coated at least on one side, is wound helically and has overlapping edge zones (37) with an adhesive device (46).
PCT/EP1997/001098 1996-03-08 1997-03-05 Tube-production device Ceased WO1997032717A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19609018 1996-03-08
DE19609018.0 1996-03-08
DE19707407A DE19707407A1 (en) 1996-03-08 1997-02-25 Device for producing a tube
DE19707407.3 1997-02-25

Publications (1)

Publication Number Publication Date
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WO2011088069A1 (en) * 2010-01-12 2011-07-21 Wadsworth Lewis W Apparatus and method for cutting tubular members
WO2020044370A1 (en) * 2018-08-29 2020-03-05 Evlogia Eco Care Private Limited Bio-degradable means for use as drinking straw, stirrer and chop stick and a method thereof
WO2020127516A1 (en) * 2018-12-20 2020-06-25 Creapaper Gmbh Drinking straw
CN111993478A (en) * 2020-08-21 2020-11-27 山东蔚来新材料有限公司 Cutting processing system of edible straw
CN112455008A (en) * 2020-10-27 2021-03-09 乐美包装（昆山）有限公司 Manufacturing method of straw and straw
CN114055542A (en) * 2022-01-14 2022-02-18 江苏诚扬新材料科技有限公司 Efficient anti-sticking type paper product manufacturing device and manufacturing method thereof
EP4115776A1 (en) * 2021-07-07 2023-01-11 Henkel AG & Co. KGaA Method for at least partially closing a main orifice of a drinking straw
EP3975801A4 (en) * 2019-04-24 2023-09-27 Saji Varghese Bio-degradable food handling devices and systems and methods for making the devices
CN118682860A (en) * 2024-01-23 2024-09-24 南京林业大学 An integrated processing device for toughening and winding of thin bamboo sheets

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011088069A1 (en) * 2010-01-12 2011-07-21 Wadsworth Lewis W Apparatus and method for cutting tubular members
US9016178B2 (en) 2010-01-12 2015-04-28 Lewis W. Wadsworth Apparatus and method for cutting tubular members
US9950472B2 (en) 2010-01-12 2018-04-24 Lewis W. Wadsworth Apparatus and method for cutting tubular members
WO2020044370A1 (en) * 2018-08-29 2020-03-05 Evlogia Eco Care Private Limited Bio-degradable means for use as drinking straw, stirrer and chop stick and a method thereof
GB2588726A (en) * 2018-08-29 2021-05-05 Evlogia Eco Care Private Ltd Bio-degradable means for use as drinking straw, stirrer and chop stick and a method thereof
US12245711B2 (en) 2018-08-29 2025-03-11 Evlogia Eco Care Private Limited Bio-degradable means for use as drinking straw, stirrer and chop stick and a method thereof
GB2588726B (en) * 2018-08-29 2022-08-24 Evlogia Eco Care Private Ltd Bio-degradable means for use as drinking straw, stirrer and chop stick and a method thereof
WO2020127516A1 (en) * 2018-12-20 2020-06-25 Creapaper Gmbh Drinking straw
EP3975801A4 (en) * 2019-04-24 2023-09-27 Saji Varghese Bio-degradable food handling devices and systems and methods for making the devices
CN111993478A (en) * 2020-08-21 2020-11-27 山东蔚来新材料有限公司 Cutting processing system of edible straw
CN111993478B (en) * 2020-08-21 2022-03-04 山东蔚来新材料有限公司 Cutting processing system of edible straw
CN112455008A (en) * 2020-10-27 2021-03-09 乐美包装（昆山）有限公司 Manufacturing method of straw and straw
EP4115776A1 (en) * 2021-07-07 2023-01-11 Henkel AG & Co. KGaA Method for at least partially closing a main orifice of a drinking straw
WO2023280467A1 (en) * 2021-07-07 2023-01-12 Henkel Ag & Co. Kgaa Method for at least partially closing a main opening of a drinking straw
CN114055542B (en) * 2022-01-14 2022-03-25 江苏诚扬新材料科技有限公司 Efficient anti-sticking type paper product manufacturing device and manufacturing method thereof
CN114055542A (en) * 2022-01-14 2022-02-18 江苏诚扬新材料科技有限公司 Efficient anti-sticking type paper product manufacturing device and manufacturing method thereof
CN118682860A (en) * 2024-01-23 2024-09-24 南京林业大学 An integrated processing device for toughening and winding of thin bamboo sheets

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