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WO2018065553A1 - Procédé et dispositif de soudage thermique à plat de plusieurs panneaux de matériau - Google Patents

Procédé et dispositif de soudage thermique à plat de plusieurs panneaux de matériau Download PDF

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Publication number
WO2018065553A1
WO2018065553A1 PCT/EP2017/075427 EP2017075427W WO2018065553A1 WO 2018065553 A1 WO2018065553 A1 WO 2018065553A1 EP 2017075427 W EP2017075427 W EP 2017075427W WO 2018065553 A1 WO2018065553 A1 WO 2018065553A1
Authority
WO
WIPO (PCT)
Prior art keywords
material plates
welding station
plates
heat
welding
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/EP2017/075427
Other languages
German (de)
English (en)
Inventor
Oliver Mance
Thorsten Koch
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.)
Robert Buerkle GmbH
Original Assignee
Robert Buerkle 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
Application filed by Robert Buerkle GmbH filed Critical Robert Buerkle GmbH
Publication of WO2018065553A1 publication Critical patent/WO2018065553A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/203—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being several single mirrors, e.g. not mounted on the same tool
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • B29C65/7873—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains using cooperating conveyor belts or cooperating conveyor chains
    • 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
    • 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
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/727—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 structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1027—Pressing using at least one press band

Definitions

  • the present invention relates to a method for the thermal, surface welding of a plurality of material plates made of foamed and / or non-foamed material having the features according to the preamble of claim 1 and an apparatus for thermal, surface welding of several such material plates with the features according to the preamble of claim 1.
  • a “surface” welding is a welding or joining any surfaces of material plates, as understood in particular insulating panels, wherein to increase the width of the longitudinal edges, to increase the length of the transverse edges and to increase the thickness or height of the insulating panels, the surfaces To melt the surfaces to be joined, a heat element is used which is arranged horizontally in the exemplary embodiments and has a small vertical height compared to its length also be arranged vertically or at any other angle.
  • the main field of application of the present invention is the lamination or doubling of hard foam boards which are used for the production of thermal barrier coatings, in particular for buildings.
  • Such Insulation boards are used to achieve sufficient thermal insulation due to current energy-saving regulations, especially in the construction and real estate sector and in the industry, in order to save non-renewable energy sources.
  • Optimum heat insulation can significantly reduce the heating costs of a house.
  • plastic foam elements were used as insulating panels with particularly strong thicknesses of more than 100 mm for building insulation.
  • especially insulating materials such as rigid polyurethane foam, expanded polystyrene foam or extruded polystyrene foam were known.
  • Extruded material plates are usually process-related in width and height, e.g. mostly limited to 600 to 1200 mm width and 100 mm height maximum with a plate width of 1200 mm and 240 mm height with a plate width of 600 mm. Basically, however, other widths and heights are conceivable.
  • Welding station fed and moved along a separating blade.
  • the positioning of the separating blade creates a gap with a defined gap width, in which a fixedly installed heating element, preferably a heating blade, arranged downstream of the separating blade is arranged.
  • This heating blade softens by contact-free heat transfer at least one of the surfaces of the material plates to be joined or melts them.
  • the material plates are joined together by pressing elements that press the material plates against each other so that adjusts a cohesive connection due to the previous heat application during pressing and subsequent cooling of the weld.
  • multi-layer rigid foam boards can be produced or rigid foam boards are laminated.
  • due to the arrangement of the separating blade and the heating sword in a gap a diversion of the working required material plates, which can lead to bumps and bends of the finished joined material plate especially for larger thicknesses of material plates.
  • WO 2016/102292 A1 discloses a process for the production of at least two-ply thermoplastic sheets by thermal welding of sheets, the sheets having a different density.
  • a plurality of heating elements are introduced on mutually offset planes between the output plates, without the surfaces of the heating elements touching the material plates. By appropriately selected distances different amounts of energy or heating power can be transferred to the surfaces to be joined together the output plates, which are then connected to each other.
  • the welding of two material plates takes place cyclically in the mirror welding process, wherein the surfaces to be joined of the two material plates over the entire surface are heated by surface heat sources until fused. Thereafter, the mirrors are moved out and the two material plates accurately placed on each other and then pressed against each other until the melted surfaces of the material plates are cooled and thus creates a material connection of the two material plates. If necessary, then further plates can be applied to further increase the plate thickness.
  • the mirrors are usually at a small distance of, for example, 0.3 mm from the material plates, so that the latter must be supplied very accurately. Due to the movement of the mirrors, there is also the danger that the melted surfaces will cool at different speeds.
  • the mirror welding method has the disadvantage that only a small plate capacity / min.
  • the said method has in common that on the one hand a limitation of the geometry is given by the fact that the extrusion width and / or the extrusion thickness are limited.
  • a convertibility of an extruder for an order-related production is associated with a high degree of waste and effort until the process is stable and reproducible.
  • Optimum lambda values are achieved up to a thickness of approx. 80 mm, after which the values in the individual plates reduce with increasing thickness.
  • the starting plates are made as usual in the art at an angle of e.g. fed to five degrees or more, this leads to a lower performance and thickness limitation of the upper insulation board due to the associated curvature.
  • the present invention is based on the object to provide a method and an apparatus for the surface thermal welding of material plates, which allows the production of high-quality material panels at the same time energy-efficient process and high operating speed.
  • the method and the device for carrying out the method allow welding any surfaces of material plates, in particular Dämmstoffplat- th.
  • any surfaces of material plates in particular Dämmstoffplat- th.
  • Surfaces of the insulating panels themselves are welded together.
  • the invention makes use of the fact that by feeding in parallel with an angle of delivery of less than 1 °, a continuous process with continuous feeding of the material plates is possible even with rigid material plates.
  • the heat element which is preferably designed as a heating sword, touches the surfaces of the material plates and melts them before the actual welding or joining process.
  • the direct contact of the heat element to the material plates can be worked in an optimized temperature range, which melts just as much of the material plate, as required for the subsequent joining process.
  • the weld can be kept very thin, which among other things contributes to the diffusion-open nature of the end products produced. Since the melting takes place immediately before the actual welding process, and also the heat element does not have to be removed from the gap, the process can be operated with relatively little energy.
  • the low thermal conductivity of the material plates also has the advantage that heat from the minimum gap with parallel or nearly parallel feeding of the material plates can hardly escape.
  • the parallel or nearly parallel feed of the material plates also has the advantage that significantly less height is required in a device according to the invention. This is to set up, align or position the material plates to each other, e.g. create a fold or a tongue and groove on the material plates, now possible directly in the welding station. This reduces the construction costs for corresponding positioning mechanisms, as they are customary in the prior art. At the same time reduce the hitherto required changeover times, since even with a small stock of material plates in the short term, a large range of geometry can be covered in to be produced material plates. This leads to a high degree of flexibility and low storage capacities in the manufacturing companies. Any thicknesses, widths and lengths of material plates can be produced in one station as well as in several stations. A reworking after the joining process can be avoided or at least minimized, since a high precision is ensured by the location close to the welding station. This also reduces possible waste by reworking considerably and thus contributes to a resource-saving handling of the required raw materials.
  • the throughput rate can be increased to, for example, up to 200 m 3 / h, above all in the production of four or more layered plates, by allowing several plates to be welded together in a continuous process. It is advantageous if the material plates are measured during the feeding and positioned in the welding station to each other. As a result, the efficiency can be increased further, since the exact position of the plates is already known at the time of joining.
  • the material plates are positioned accurately to each other only in the welding station itself. The later the positioning takes place, the easier it is to ensure positioning, as long as it is ensured that the positioning can keep up with the throughput of the material plates.
  • the material plates are fed directly to the welding station. Due to the parallel or nearly parallel feed in connection with the dynamic planner shaft adjustment with a processing of the material plates above and / or below, a turning station and / or Plattenhubstation can be saved.
  • the heating element is preferably a heating bar, wherein a plurality of heating elements may also be provided, in particular if several layers of material plates, i. in particular, more than two layers are welded together.
  • the heating element has a plurality of surfaces which can be tempered to different temperatures. It is particularly advantageous if the heating element is heated to different temperatures on separate surfaces by means of separate heating means.
  • the independently installed heating means such as eg heating resistors or heating circuits can be operated, for example, in the temperature range from 100 ° C. to 400 ° C., the temperature being dependent on the respective softening temperatures of the materials.
  • the surfaces can then be tempered so that a material plate on one surface and the other on the opposite surface of the heat element are guided past contact.
  • the material plates can be supplied to the surfaces of the heat element with different contact pressure.
  • this allows special features of the individual material plates, such as their density, structure, material properties to be dealt with as needed, so that identical but also different material plates can be treated "in a manner appropriate to the species" before they are welded together. It is advantageous if the material plates with a small distance parallel or almost parallel with an angle of less than 1 ° are fed to the heating element.
  • the preferred gap dimension is less than or equal to 10 mm, but preferably a smaller gap of 5 mm or even no gap is present, ie the plates are superimposed on the heat element. This can go so far in the field of welding station that the material plates are fed quasi with a negative gap of, for example, up to minus 4 mm the heat element. This is to be equated with an already existing melting of the surfaces. Due to the small or no gap enters a thermal insulation of the heat element, so that with low energy optimal melting of the material plates can be achieved at the surfaces to be welded together.
  • offset heat elements may be provided so that each located between the material plates gap is associated with at least one heat element.
  • the fused surfaces of the material plates can also be connected to one another simultaneously in a welding station.
  • the method has been found to be particularly suitable, even if they have the same thickness, as occurring by the parallel, in particular symmetrical feeding occurring after welding curvatures of the finished material panels are sustainable avoided.
  • the thermal element is preferably self-cleaning due to the continuous and contact-related passing of the material plates so that residual material adhering to the surface of the surfaces is reliably dissipated and, for example, can contribute to the joining process of the next material plate.
  • the stated object is also achieved by a device for thermal, surface welding of a plurality of material plates.
  • a first conveyor and a second conveyor for continuously feeding the material plates to the welding station are provided. Upstream of the welding station, the heating element is arranged. Pressing elements downstream of the heating element provide for the joining process, which is possible due to the previous application of heat by the heating element and leads to the fluid connection of the material plates.
  • the first subsidy der adopted and the at least one further conveyor are at least in the region of the welding station at an angle of less than 1 °, preferably arranged parallel to each other, which allows a gentle supply of even rigid insulating panels.
  • the arrangement of the heat element touching the surfaces of the material plates can be accomplished with relatively little energy, a melting of the surfaces.
  • the parallel feed contributes to the fact that relatively little air reaches the heating element, which is at the same time arranged between heat-insulating material plates. This also contributes to an energy-efficient melting.
  • the heat element is preferably arranged directly in the welding station, so that the joining process can take place immediately after the melting process.
  • Means for positioning the material plates to each other are associated with the welding station, as by the parallel feed positioning shortly before or preferably in the welding station to achieve an optimum result is possible. As a result, the cost of reworking after the joining process and the accumulation of material waste can be reduced.
  • the heating element has a plurality of surfaces which can be tempered to different temperatures, or the material plates are fed to the heating element at different pressure or different "draft", i.e. with a quasi "negative" gap.
  • the tempering is accomplished in a particularly preferred manner by separate heating means.
  • the heat element is such that there is no adhesion of residual material of the melted surfaces of the material plates. This can be achieved by e.g. appropriate coatings and polishing of the heat element can be ensured. This allows a guide of the material plates close to the heat element to facilitate the parallel feed.
  • the conveyors for conveying the material plates are arranged so that plates between the material forms a gap less than or equal to 10 mm, preferably between 5 and 0 mm.
  • the material plates can also be supplied to the thermal element with a negative gap of, for example, up to minus 4 mm. Due to the low to no or even negative gap and the small angle in the feeder, the material can be supplied with a low overall height. If necessary, in the gap in front of the heat element, a separating element can be used as a positioning aid whose height is less than or equal to the height of the heat element. After the heating element The material plates are joined together, so that virtually results in a gap with a "negative gap" less than zero.
  • the gap is tuned to the vertical height corresponding to the vertical extent of the thermal element. This leads to a low-friction and low-wear promotion along the heating element.
  • a plurality of heat elements are provided which are offset from one another at least in one direction transversely to the transport direction of the material plates.
  • the heat elements With horizontal feed of the material plates and horizontally arranged heat element, the heat elements then lie vertically one above the other, but they can be exactly offset one above the other in the transport direction.
  • the at least one heat element can also be arranged vertically standing.
  • the material plates can be reliably and positionally supplied to the heating element, so that joining processes along the edges of material plates are easy to implement.
  • FIG. 2 shows an enlarged detail from FIG. 2 in the region of the heating blade 15
  • FIG. 4 shows a representation according to FIG. 2 with a plurality of material plates to be joined at the same time
  • Fig. 5 is a schematic representation of a known method according to the prior art.
  • Fig. 5 shows schematically a method for the thermal, surface welding of several material plates of foamed materials according to the prior art, as e.g. from DE 10 2012 204 822 A1 is known.
  • the existing there machines A to D are surrounded by dashed lines for explanation.
  • first material plates 10 and further material plates 1 1 are supplied.
  • the material plates 10 are arranged on a conveyor 20, the material plates 1 1 on a conveyor 21, which is formed in the original example by a vacuum conveyor. From left to right in FIG. 5, the material plates first arrive at a planner shaft 18 with which a surface treatment in region A takes place from above.
  • the machine B is a vacuum transfer station, in which now the material plates 1 1 are received by the vacuum belt conveyor. Depending on the length of the plate one or two or more plates are fed and then turned by 180 °. Then, the number of plates machined correspondingly on the opposite surface, so that corresponding pairs of pairs form, which then run into the Plattenhub- and positioning station C.
  • the Plattenhub- and positioning station C then performs the material plates at an angle accurately positioned the welding station D to.
  • a heating sword as a heating element 15, which melts the surfaces of the material plates.
  • nerisch not shown manner, the material plates 10, 1 1 pressed against each other via pressure rollers 25 and so firmly bonded together.
  • Fig. 1 shows the corresponding inventive method for thermal, surface welding of several material plates 10, 1 1 of foamed and / or not foamed material, i. not only foamed materials can be joined together with the method.
  • a "planar” welding is understood as a welding or joining any surfaces of material plates, wherein to increase the width of the longitudinal edges, to increase the length of the transverse edges and to increase the thickness or height of the insulating panels, the surfaces of the insulating panels themselves welded together become.
  • the plates according to the invention according to FIG. 1 in parallel and with respect to their surfaces already above and / or below, for. can be fed processed by the dynamically adjustable planetary wave, they can be fed directly to the dashed framed welding station D without a vacuum turning station, in which a corresponding Plattenhubstation is provided or integrated. Due to the parallel feeding of the material plates to the relatively thin heat element can be dispensed with the lifting station and due to the dynamic planner adjustment on the vacuum transfer station.
  • the further material plates 1 1 can be fed to a vacuum conveyor line 21, while the material plates 10 are arranged on the conveyor 20, which may also be designed as a vacuum conveyor.
  • the heat element At the end of the welding station D is the heat element in addition to the already in the conveying direction 14, the pressing means in the form of pressure rollers 25 can be seen.
  • the material plate 10 after entry from the conveyor 21, for example, a hanging vacuum conveyor are pressed into a lower position, so that the next material plate 1 1 can run over the first material plate.
  • This is in Fig. 1 at the second position recognizable.
  • This leads to a process that is more optimal than the prior art for highest throughput through plate pair formation in a two-level process.
  • the first material plate with eg 9.8 m / s 2 can be accelerated and at high plate performance, the plates are of small thickness.
  • the conveyor 21 has slightly lowered from the previous second position to deliver the desired gap.
  • This is the principle of angular transfer in two planes, which contributes to high throughput. It is only a small drop height of e.g. only 100 mm drop height instead of 700 to 1300 mm with a horizontal Abschubrate.
  • the plate pair is formed, which can then run directly into the welding station D.
  • the dynamic shaft adjustment Due to the dynamic shaft adjustment, an alternating machining of the upper and lower surface is to take place, which must be set in the partial gap between the material plates in the pass.
  • the material panels are regularly provided with a skin that is to be removed for processing on the welding sides. Due to the heating element and the reciprocal dynamic planner shaft adjustment, which in the exemplary embodiment covers approximately 10 mm in the exemplary embodiment, the turning station can be dispensed with.
  • At least one first material plate 10 is continuously fed to the welding station D by means of a first conveying device 20 and at least one further material plate 11 by means of at least one further conveying device 21.
  • the facing to be welded surfaces 10a, 1 1 a of a pair of plates forming material plates 10, 1 1 are applied as shown in FIG. 3 upstream of the welding station D by means of at least one located between the surfaces of the heat element 15 so heat that at least one of these surfaces 10a, 1 1 a melts.
  • more than one heat element 15 can be provided between the plates to be joined to one another.
  • the material plates 10, 11 are fed parallel or nearly parallel to the welding station 15 at an angle of less than 1 °.
  • the heat element 15 touches the surfaces 10a, 11a of the material plates 10, 11 and melts them directly. Due to the parallel feed, it is possible to position the material plates 10, 1 1 in the welding station D or near the welding station D accurately to each other and to connect with each other. Preferably, the precise positioning can also be done only in the welding station D, and it is advantageous that the material plates are measured and positioned during the feed.
  • the heat element 15 can have a plurality of surfaces 15a, 15b which can be temperature-controlled to different temperatures. This can be achieved in particular by separate heating means 16, 17, which ensure that opposing surfaces 15a, 15b of the heating element 15 - in Fig. 3 below and above the heating element - are heated to different temperatures. It is also alternatively or additionally possible to supply the material plates with different contact pressure to the heating element.
  • the heating means are electrical heating means such as e.g. Resistance heaters as well as heating circuits with suitable temperature control. Such heating means are known to those skilled in the art.
  • the first material plate 10 on one surface 15a and the further material plate 1 1 on the opposite other surface 15b of the heat element 15 are guided past contact.
  • material composition, composition and / or thickness of the material plate can be targeted to work with certain temperature ranges in order to achieve a gentle melting of the surfaces to be joined.
  • the weld skin can be adjusted as thick as necessary in order to be able to insert the material plates, but also to set them as thin as possible, in order thereby to impair as little as possible the water-diffusion resistance factor compared to the starting plates.
  • the desired temperature for melting the surfaces can be achieved with relatively little energy by arranging the heat element 15 between the material plates 10, 11, which may be supplied in parallel with a small gap 13. the.
  • the heat element 15 between the material plates 10, 1 1 which have a low thermal conductivity and thus isolate the heat element 15 at the same time in position , This contributes to a highly energy-efficient joining process.
  • only as much material is melted as is required for the joining process, so that a very thin
  • weld seam can be achieved. This in turn contributes to a good diffusion-openness of the end product also in the area of the weld.
  • the material plates are not only as parallel or nearly parallel as possible, but also with a minimum distance with a gap, e.g. less than or equal to 10 mm, preferably with a gap between 5 and 0 mm supplied to the heat element 15. This can also go so far in the area of the welding station that the material plates have a quasi negative gap of e.g. be supplied to the heating element 15 to minus 4 mm. Due to the small to negative gap, the material can be supplied with a low overall height.
  • a separating element 23 can be used as a positioning aid whose height is less than or equal to the height of the heat element. After the heating element, the material plates are joined together, so that virtually results in a gap with a "negative gap" less than zero.
  • the material plates may also be rigid insulating panels, for example, have the same thickness. Due to the parallel feed, no curvature of the material plates 10, 11 in the feed is required, so that also several material plates For example, each with a thickness of 200 mm can be joined together by this method.
  • any continuous surfaces and thicknesses of insulating panels of extruded standard formats can be produced in the case of a continuous supply of the welding partners, that is to say the material panels.
  • a subsequent cut to any geometric shapes and surfaces is possible.
  • the limits of the extrusion in the production of the material plates can be taken into account and it can be used material plates with optimum lambda values readily.
  • high throughput rates are easily possible.
  • the process can also be significantly simplified in the production of multilayer boards with more than two layers.
  • the material plates are fed continuously via conveyors 20, 21 such as vacuum conveyors.
  • the material plates 10, 1 1 to be joined are preferably aligned and positioned precisely in front of the welding station D and then guided along the heat element 15 and fused, so that they can then be joined together immediately afterwards under contact pressure.
  • the joined plates are then fed to a further assembly.
  • the material plates 10, 1 1 are parallel to each other or at least almost parallel to each other with a possibly small gap 13 of about 10 mm, preferably 5 mm or even without or with a negative gap, fed to the welding station.
  • the upper material plate 1 1 can be positioned by hanging vacuum conveyor as a conveyor 21 to the desired gap height.
  • the material plates are suitably processed in the upstream planning station A by means of planner shafts 18 alternately above and / or below, so that only one planning station is required.
  • the parallel feeding with a small or no gap 13 eliminates the lifting and turning process and thus the vacuum reversing station, which regularly represents the bottleneck in the maximum performance of a continuous thermobonding station as a welding station.
  • the apparatus for carrying out the method comprises a first conveyor 10 for continuously feeding a first material plate 10 to a welding station D and a further conveyor 21 for continuously feeding at least one further material plate 1 1 to the welding station D.
  • At least one heating element 15 is arranged upstream of the welding station between the surfaces 10a, 11a of the material plates 10, 11 to be welded onto one another which are to be welded together.
  • the first conveyor 20 and the at least one further conveyor 21 are at an angle of less than 1 °, at least in the region of the welding station D, preferably they are parallel to each other.
  • the heating element 15 is arranged relative to the conveyors 20, 21 so that it contacts the surfaces 10a, 11a of the material plates 10, 11.
  • the welding station D are associated with means for positioning the material plates 10, 1 1 to each other.
  • the means for positioning the material plates are provided in the welding station D itself.
  • the heat element 15 may have a plurality of surfaces 15a, 15b, which are temperature-controlled to different temperatures. This is preferably done by separate heating means 16, 17.
  • the conveyor 20 and the conveyor 21 for conveying the material plates 10 and 1 1 are arranged so that forms the desired gap between the material plates, which preferably has a vertical height, the the vertical extent of the heat element 15 is equal to or smaller than this height. If several layers of material plates are supplied, there is a corresponding gap or at least one corresponding thermal element between each layer of the material plates according to FIG. 4.
  • These plurality of heat elements 15, 15 ' are offset from each other at least in a direction transverse to the transport direction 14 of the material plates, i. in the embodiment, they are vertically above one another, but they could also be offset in the transport direction 14 to each other.
  • the method and apparatus and rigid insulation boards can be supplied continuously, pre-aligned, aligned, prepositioned the welding station D are supplied.
  • the material plates can be joined together longitudinally, transversely and in multiple layers. A welding of identical and dissimilar materials possibly also with different melting temperatures is possible with appropriate design of the heating element 15.
  • the heating element is a heating blade or a thin heating wire, wherein the material plates are guided past the heating element continuously.
  • the heating element 15 can be operated permanently and / or clocked.
  • the heat element can be subjected to a short time with higher energy before the supply of the semifinished product to be welded become.
  • the heat element 15 is equipped with a control unit, such as a temperature sensor, a temperature control or control.
  • the surface of the heat element 15 is preferably designed so that an adhesion of the material to be welded is reduced or completely excluded. This can be achieved on the one hand by a surface treatment e.g. be achieved with a coating or a special surface design to a polish.
  • the heating element 15 is also process-based self-cleaning, since the material plates are continuously passed contact-contacting the heat element.
  • the heating element is e.g. a thin, heatable steel band.
  • the heat element 15 a high energy density must be introduced. The energy must be supplied quickly or dynamically. If necessary, cooling can also be effected in a targeted manner via the Peltier effect.
  • the temperature ranges at which the heat element 15 is operated depend on the material to be welded. A temperature of 100 to 400 ° C is usually required. The concrete surface temperature of the material to be welded depends on the recommended processing temperatures of the materials to be joined.
  • the heat element 15 must also be mechanically durable and heat-resistant. It should have the lowest possible thermal expansion or it must be provided a device for permanent compensation of thermal expansion, such. a bias with weights, springs or the like. Multi-layer welding can take place in one station and in one work step. It is also possible to supply more than two plates, as long as it is ensured that the plate surfaces are fed in parallel or nearly parallel.
  • the positioning should preferably allow an exact feed, so that before, during and after joining a plate offset minimized, excluded, targeted and reworking is largely avoided. This can be assisted, for example, by measuring the material plates during the process and positioning them in relation to each other so that the most exact possible positioning results.
  • the supply via the conveyors 20, 21 can eg with vacuum bands, air bags, mangle rolls, alignment rolls, driven stop rulers, stationary or ange- drove, slide or pusher done.
  • a multi-layer feed is possible below by vacuum belts and in the middle, for example by a lateral conveyor 22 as shown in FIG. 4 at the outer edges. Also conceivable are slides and pushers or lateral guides and slats.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé et un dispositif de soudage thermique à plat de plusieurs panneaux de matériau composés d'un matériau expansé et/ou d'un matériau non expansé, les panneaux de matériau (10, 11) étant respectivement amenés en continu à un poste de soudage (D) par des dispositifs de transport (20, 21). Les surfaces à souder des panneaux de matériau (10, 11) orientées l'une vers l'autre sont exposées en amont du poste de soudage (D) à de la chaleur au moyen d'au moins un élément chauffant (15) de telle manière qu'au moins une desdites surfaces est fondue. Sous l'application d'une pression, les surfaces sont ensuite assemblées l'une à l'autre par liaison de matière en raison de l'exposition précédente à la chaleur par l'élément chauffant (15). Du fait que les panneaux de matériau (10, 11) sont amenés jusqu'au poste de soudage (D) à un angle inférieur à 1°, de préférence parallèlement l'un à l'autre, que l'élément chauffant (15) fait fondre les surfaces de panneaux de matériau (10, 11) en contact, et que les panneaux de matériau (10, 11) sont assemblés en position ajustée l'un par rapport à l'autre dans le poste de soudage (D), on obtient un procédé et un dispositif qui permettent la fabrication de panneaux de matériau d'un haut niveau de qualité pour un processus économe en énergie et une vitesse de travail élevée.
PCT/EP2017/075427 2016-10-06 2017-10-05 Procédé et dispositif de soudage thermique à plat de plusieurs panneaux de matériau Ceased WO2018065553A1 (fr)

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DEDE102016119012.8 2016-10-06
DEDE102016120064.6 2016-10-20
DE102016120064.6A DE102016120064A1 (de) 2016-10-06 2016-10-20 Verfahren und Vorrichtung zum thermischen, flächigen Verschweißen mehrerer Werkstoffplatten

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WO2016102292A1 (fr) 2014-12-22 2016-06-30 Basf Se Procédé de fabrication de plaques thermoplastiques multicouches par soudure thermique de plaques différentes

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BE1028938B1 (nl) * 2020-12-23 2022-07-19 Paneltim Nv Werkwijze en inrichting voor de productie van kunststof panelen

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