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DE2627610A1 - Machine for enclosing packets in thermoplastic band - forms band loop round packet and welds and separates formed loop - Google Patents

Machine for enclosing packets in thermoplastic band - forms band loop round packet and welds and separates formed loop

Info

Publication number
DE2627610A1
DE2627610A1 DE19762627610 DE2627610A DE2627610A1 DE 2627610 A1 DE2627610 A1 DE 2627610A1 DE 19762627610 DE19762627610 DE 19762627610 DE 2627610 A DE2627610 A DE 2627610A DE 2627610 A1 DE2627610 A1 DE 2627610A1
Authority
DE
Germany
Prior art keywords
band
loop
machine
finger
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.)
Withdrawn
Application number
DE19762627610
Other languages
German (de)
Inventor
Josef Knoepfle
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.)
GREMSER MASCH FRANZ
Original Assignee
GREMSER MASCH FRANZ
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 GREMSER MASCH FRANZ filed Critical GREMSER MASCH FRANZ
Priority to DE19762627610 priority Critical patent/DE2627610A1/en
Publication of DE2627610A1 publication Critical patent/DE2627610A1/en
Withdrawn legal-status Critical Current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
    • B29C66/80—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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • 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
    • 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
    • B29C66/4324—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 for making closed loops, e.g. belts
    • 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
    • B29C66/81457—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 block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat 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
    • B29C66/01—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
    • B29C66/70—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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/7276—Straps or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Basic Packing Technique (AREA)

Abstract

Machine for enclosing stacked rectangular products in a band from a thermoplastic material includes a storage roller for the band positioned above and below a table and projecting through a slot in the table. The band which is held under tension forms a loop due to the pressure of the package pushed on the table below a pressing finger. The bottom part of the loop overlaps a welding device which is movable in a second table slot positioned parallel with the first slot. The top part of the loop is positioned on the bottom part of the loop by the pressing finger and both ends of the top and bottom part welded together. Subsequently, the storage roller is separated from the welded together packing enclosing band. The pressing finger consists of two individual elastically supported fingers positioned each side of the table slot in which the welding device is lowered. The pressing fingers (13) are fitted on their side facing the welding device (13) with elastic heat resisting insert (28) pref. from a silicone rubber.

Description

Maschine zum Umschließen von Paketen mit einer Banderole Machine for wrapping packages with a band

Die Erfindung betrifft eine Maschine zum Umschließen von Paketen aus übereinander gestapelten rechteckigen Produkten mit einer Banderole aus thermoplastischen Kundststoff-Band, das zwischen einer oberhalb eines Tisches und einer unterhalb dieses Tisches angeordneten Vorratsrolle durch einen Tischspalt hindurchragt und unter nachgiebiger Spannung gehalten ist und unter dem Druck des auf dem Tisch und unterhalb eines Andrückfingers hindurchgeschobenen Pakets eine Schlaufe bildet, deren unteres Trum ein aus einem weiteren, zum erstgenannten Tischspalt in einem Abstand in Pakettransportrichtung nachgeordneten, parallel verlaufenden Tischspalt über die Tischoberfläche auftauchbaren Schweißschwert überlappt und deren oberes Trum-Ende durch den sich auf das Schweißschwert danach absenBtenden Andrückfinger über das untere Trum-Ende gelegt wird, wo nach vorzeitigem Absenken eines Niederhalters auf das Paket beide Schlaufentrum-Enden miteinander verschweißt werden und die Schweißnaht danach unter der nach Wiederanheben des Andrückfingers frei werdenden Bandspannung geteilt wird, wobei die um das Paket geschlungene, in sich geschlossene Banderole von dem zusammengeschweißt in der Maschine verbleibenden Band getrennt wird, wobei der Andrückfinger aus zwei auf je eines der beiden durch den für das Auftauchen des Schweißschwerts erforderlichen Tischspalt voneinander getrennten Tischteilen aufsetzbaren Einzelfingern besteht, die einzeln federnd abgesEtzt sind. The invention relates to a machine for wrapping packages made of stacked rectangular products with a thermoplastic banderole Plastic tape between one above a table and one below this table arranged supply roll protrudes through a table gap and is held under resilient tension and under the pressure of the on the table and forms a loop underneath a pressure finger, whose lower run one from another, to the first table gap in one Distance in the package transport direction downstream, parallel table gap The welding sword that emerges over the table surface overlaps and the upper one The end of the run is caused by the pressure finger that is then lowered onto the welding sword is placed over the lower end of the strand, where a hold-down device has been lowered prematurely on the package both ends of the loop center are welded together and the weld seam then under the tension released after lifting the pressure finger again is divided, with the self-contained banderole wrapped around the package is separated from the band remaining welded together in the machine, wherein the pressure finger from two on each one of the two by the for the surface of the welding sword required table gap separate table parts attachable individual fingers, which are individually resiliently offset.

Solcher Maschinen dienen zum Bündeln vorzugsweise von Papiererzeugnissen, wie z.B. Taschenbüchern, Taschenkalendern, Etiketten, Postkarten oder ähnlichen im Gewicht nicht zu schweren Produkten, für deren Bündelung ein Polyvinylchlorid-Band ausreicht, das als Thermoplast bei etwa 1800 schweißbar ist und im übrigen den Vorzug hat, in einer besonders beliebten durchsichtigen Klarglas-Fsrblosikeit billig auf dem MatFt zu sein Solche Maschinen können eine Mehrzahl von Bändern nebeneinander enthalten, so daß mit einem einzigen Transportschritt gleichzeitig mehrere Pakete nebeneinander gebündelt werden können. Such machines are used for bundling preferably paper products, such as paperbacks, pocket calendars, labels, postcards or the like not too heavy in weight products, for their bundling a polyvinyl chloride tape is sufficient that is weldable as a thermoplastic at around 1800 and the rest of the preference has, in a particularly popular transparent clear glass To be cheap on the mat Such machines can have a plurality of belts side by side included, so that with a single transport step several packages at the same time can be bundled side by side.

Für die Automatik der Maschine ist die ständige Aufrechterhaltung des Bandvorhanges Voraussetzung. Sie wird durch die Teilbarkeit der Schweißnaht ermöglicht, wodurch sich die um das Paket geschluggene, in sich geschlossene Banderole ten von dem zusammengeschweiß/in der Maschine verbleibenden Band trennen läßt. Trotz der Teilbarkeit muß die Schweißnaht an jeder ihrer llälften ausreichend stark und kräftig bleiben, um ihre Funktionen zu erfüllen. Dies erforuert eine ganz bestimmte teigige Konsistenz der Scchweißnaht im Augenblick ihrer Aufteilung. The automatic maintenance of the machine is essential of the ribbon curtain is a prerequisite. It is made possible by the divisibility of the weld seam allows the self-contained banderole wrapped around the package ten can be separated from the band welded together / in the machine. Despite The weld seam must be sufficiently strong and divisible on each of its halves staying strong to perform its functions. This explores a very specific one pasty consistency of the weld seam at the moment of its division.

Das Legen der Schweißnaht erfolgt durch das Zusammenwirken von Schweiß schwert und Andrückfinger, wobei der Andrückfinger die zusätzliche Aufgabe hat, die beiden Kunststoff-Band-Trum-Enden beiderseits des Tischspalts auf der Tischoberfläche festzuhalten. Damit das absolut einwandfrei sichergestellt ist, besteht der Andrückfinger aus zwei auf je eines der beiden durch den für das Auftauchen des Schweißschwerts erforderlichen Tischspalt voneinander getrennten Tischteilen auf setzbaren Einzelfingern, die einzeln federnd abgestützt sind. The welding seam is created through the interaction of sweat sword and pressure finger, whereby the pressure finger has the additional task of the two plastic tape strand ends on both sides of the table gap on the table surface to hold on. To ensure this is absolutely flawless, there is a pressure finger from two to one of the two through the one for the emergence of the welding sword necessary table gap separate table parts on adjustable single fingers, which are individually resiliently supported.

Der Erfindung liegt die Aufgabe zugrunde, das Zusammenwirken von Schweiß schwert und Andrückfinger zu verbessern und für ein einwandfreies Zusammenschweißen der beiden Band-Enden mit seiner besonderen Komponente des anschließenden Aufteilens der Schweißnaht Voraussetzungen zu schaffen, die das unabhängig von Fertigungsungenauigkeiten und von sich im Laufe der Zeit unter der Wärmeeinwirkung möglicherweise einstellenden Verwerfungen sicherstellen. The invention is based on the object of the interaction of Welding sword and pressure finger to improve and for a perfect welding together of the two ends of the tape with its special component of the subsequent splitting of the weld seam to create conditions that make this independent of manufacturing inaccuracies and of possibly setting in the course of time under the influence of heat Ensure faults.

Gemäß der Erfindung besteht die Lösung dieser Aufgabe darin, daß der Andrückfinger gegenüber dem Schweißschwert eine nachgiebige, wärmebeständige, kleb-resistente Einlage trägt, vorzugsweise aus Siliconkautschuk. Die Nachgiebigkeit dieser Einlage ist dabei größer als die der Einzelfinger-Abfederung. Die Einlage ist zwischen beiden Einzelfingern eingelassen und verankert und überbrückt die Trennfuge zwischen den beiden Einzelfingern; infolge ihrer Nachgiebigkeit behindert die Einlage dabei nicht die Unabhängigkeit der Bewegglichkeit der Einzelfinger im Verhältnis zueinander unter ihrer federnden Einzelabstützung.According to the invention, the solution to this problem is that the pressure finger against the Welding sword carries a flexible, heat-resistant, glue-resistant insert, preferably made of silicone rubber. The flexibility of this insert is greater than that of the single finger cushioning. The insert is embedded and anchored between the two individual fingers and bridges the parting line between the two individual fingers; as a result of its resilience, the insert does not hinder the independence of the mobility of the individual fingers in relation to one another under their resilient individual support.

Besonders deutlich treten die erwähnten Vorteile der Erfindung bei einer Maschine in Erscheinung, in der eine Mehrzahl von Banderolierstellen nebeneinander über einem geneinsamen Schweiß schwert angeordnet ist zum gleichzeitigen Verschieben einer Mehrzahl von Paketen in die Maschine durch einen gemeinsamen Maschinenschieber, indem alle Banderolierstellengleichmäßig sicher funktionieren. The advantages mentioned of the invention are particularly evident a machine in appearance in which a plurality of banding points next to each other Above a common sweat sword is arranged to move at the same time a plurality of packages into the machine through a common machine pusher, in that all the banding points function equally and safely.

Ein Ausführungsbeippiel der Erfindung ist in der Zeichnung dargestellt. Es zeigt Sigo 1 den schematischen Aufbau der Maschine im Seitenaufriß im Zustand vor dem Einschieben eines Pakets, Sigo 2 am Ende eines Transportschritts, Fig. 3 im Zustand des ochweißens, Fig. 4 nach Wiederanheben des Andrückfingers, Fig0 5 die Frontansicht, Fig. 6 einen Ausschnitt aus Fig. 3 in größerem Maßstab, Fig. 7 eine zu Fig. 6 rechtwinklige Ansicht. An exemplary embodiment of the invention is shown in the drawing. It shows Sigo 1 the schematic structure of the machine in side elevation in the state before a package is pushed in, Sigo 2 at the end of a transport step, FIG. 3 in the state of high welding, Fig. 4 after lifting the pressure finger again, Fig0 5 the front view, FIG. 6 a detail from FIG. 3 on a larger scale, FIG. 7 a view at right angles to FIG. 6.

Ein PVC-Band 1 ragt zwischen einer oberhalb einen Tisches 2 stationierten drehbaren Vorratsrolle 3 und einer unterhalb dieses Tisches stationierten drehberen Vorratsrolle 4 durch einen Tischspalt 5 hindurch. Am Umfang jeder Bandrolle liegt ein stationer aufgehängter Textilgurt 6 unter der Kraft eines angehängten Gewichtes 7 an. Nach einer Umlenkrolle 8 passiert das Band 1 noch eine eins-tellbare Bandbremse 9. In Fig. 1 bildet das Band 1 einen Vorhang, gegen den das zu bündelnde Paket 10 in Richtung T auf dem Tisch 2 transportiert werden soll. A PVC tape 1 protrudes between one stationed above a table 2 rotatable supply roll 3 and a rotatable stationed below this table Supply roll 4 through a table gap 5. At the circumference of each roll of tape lies a stationary suspended textile belt 6 under the force of a suspended weight 7 at. After a pulley 8, the belt 1 passes an adjustable belt brake 9. In FIG. 1, the band 1 forms a curtain against which the package 10 to be bundled is to be transported in direction T on table 2.

Fig. 2 zeigt den Zustand. am Ende des Transportschritts. Fig. 2 shows the state. at the end of the transport step.

Auf diesem Transportweg hat das Paket 10 den Tischspalt@ 5 sowie einen weiteren Tischspalt 11 überfahren, von dessen rechten Kante ein klcin wenig rechts die linke Paketkante stehen geblichen ist. Dabei ist die aus Fig. 2 ersichtliche Bandschlaufe zu.s den in Pfeilrichtung D drehend nachgezogenen Vorratsrollen 4 und/oder 4 gebildet.On this transport route, the package 10 has the table gap @ 5 as well as one drive over another table gap 11, a little to the right of its right edge the left edge of the package is bleached. This is evident from FIG. 2 Band loop zu.s the supply rolls 4 and / or which are rotated in the direction of arrow D 4 formed.

Fig. 3 zeigt, die ein Niederhalter 12 auf das Paket 10 zwecks Fixierung auf dem Tisch abgesenkt ist. Ebenso ist ein Andrückfinger 13, der eine @@@ 14 trägt, durch die das Band 1 hindurchgefädelt ist, ibis auf die Tischoberfläche abgesenkt. Fig. 3 shows a hold-down device 12 on the package 10 for the purpose of fixing is lowered on the table. There is also a pressure finger 13, which carries a @@@ 14, through which the band 1 is threaded, ibis lowered onto the table surface.

Der Andrückfinger 13 legt bei seinem Absenken das obere Schlaufentrum-Ende des un das Paket 10 geschlungenen Bandes 1 unter Nachziehen aus der Vorratsrolle 3 auf das untere Schlaufentrum-Ende des Bandes, das schon auf dem Tisch und unter dem Paket 10 liegt. Nunmehr taucht ein auf gleichmäßige Schweißtemperatur geregelt gehaltenes Schweißschwert 15 aus einer unter der Tischoberfläche gehaltenen Ruhelage aus dem Tischspalt 11 auf und vollzieht unter Gegenhaltung des Andrückfingers 13 an den beiden Schlaufentrum-Enden den gewünschten Schweißvorgang.The pressure finger 13 places the upper end of the loop center when it is lowered of the un the package 10 looped tape 1 while being pulled from the supply roll 3 on the lower end of the loop center of the tape that is already on the table and under the package 10 is. Now immerse yourself in a regulated welding temperature held welding sword 15 from a rest position held under the table surface from the table gap 11 and, holding the pressure finger 13 against it, executes it the desired welding process at the two ends of the loop.

Darauf hebt sich sofort der Andrückfinger 13. Ein um eine Schwenkachse 16 schwenkbarer und auf der Bahn 1 lastender und sie zwischen ihrer oberen und unteren Bremse 9 in Zusammenwirken mit einer Umlenkrolle 27 spannender Schwingbügel 17 teilt die noch in teigigen Zustand befindliche Nahtstelle in die beiden Schweißnahstellen 18' und 1S". Von ihnen schließt die Nahtstelle 18" die Bandumschlingung am Paket zu einer geschlornenen Danderole (siehe Fig.4), und hält die Naxhtstelle 18'dan in der Maschine verbleibende @one in seiner Vorhanglage wie An der in Fig. 1 dargestellten Ausgangsstellung. Ein neuen Paket kann gebündelt werden.The pressure finger 13 then immediately lifts up around a pivot axis 16 pivotable and on the track 1 more burdensome and they between their upper and lower Brake 9 in cooperation with a deflection roller 27 divides the swing arm 17 exciting the still in doughy state into the two weld seams 18 'and 1S ". Of these, the seam 18" closes the belt wrapping on the package to a closed danderole (see Fig. 4), and holds the Naxhtstelle 18'dan @one remaining in the machine in its curtain position as shown in FIG. 1 Starting position. A new package can be bundled.

Fig. 5 zeigt die Halterung der beschriebenen Vorratsrollen 3 und 4 sowie der Andrückfinger 13 an Traversen 24 bzw. Achsen 25 in einem Portalgerüst 26. Fig. 5 shows the holder of the described supply rolls 3 and 4 and the pressure finger 13 on cross members 24 or axes 25 in a portal frame 26th

der isch beiderseits des Schweißschwertgestells 19 wird von Metallplatteneinsätzen 21 gebildet, die aus gut wärmeleitendem Material wie Aluminium bestehen und auf ihrer Unterseite Kühlrippen 22 aufweisen. Die bis zum Tischspalt 5 sich erstreckende Metallplatte 21 trägt auf ihrer Oberseite einen 2latteneinsatz 23 aus wärmedämmenden, wärmebeständigen, kleb-resistenten Kunststoff, wie Polytetrafluoräthylen (Teflon), um jede Gefahr eines Anklebens des PVC-Bandes 1 auszuschließen, wenn es sich in der Position der Fig. 2 und 3 befindet. Mit 20 ist der Heizstab für das Schweißschwert angedeutet. the isch on both sides of the welding sword frame 19 is made of metal plate inserts 21 formed, which are made of a highly thermally conductive material such as aluminum and on have cooling fins 22 on their underside. The one extending up to the table gap 5 Metal plate 21 carries a 2-slat insert 23 made of heat-insulating, heat-resistant, adhesive-resistant plastic, such as polytetrafluoroethylene (Teflon), in order to exclude any risk of the PVC tape 1 sticking when it is in the position of FIGS. 2 and 3 is located. At 20 is the heating rod for the welding sword indicated.

Fig. 6 läßt die Unterteilung des Andrückfingers 13 in zwei Einzelfinger 30 und 30' erkennen, von denen jeder zum Aufsetzen auf je einen der beiden durch den für das Auftauchen des üchweißschwertes 15 erforderlichen Tischspalt 11 voneinander getrennten etalleinsätzen 21 bestimmt ist, was unabhängig von-einander sichergestellt ist infolge der Trennfuge 31 und der Einzelfederabstützung 29 in ihrem gemeinsamen Halter 35. Bolzen 33 an den Einzelfingern 30, 30' sind in Langlöchern 34 des Halters 35 geführt und halten sie entgegen der Kraft der Druckfedern 29 längsbeweglich zusammen. Siliconkautschuk-Einlagen 28 sind mit Verankerungen 32 zwischen den beiden Einzelfingern 30 und 30' eingelassen und überbrücken die Trennfuge 31. Sie sind wesentlich weicher als die einzelnen Druckfedern 29. Beim Auftauchen des Schweißschwerts 15 drückt sich dieses leicht in die Siliconkautschuk-Einlage 28 - unter Zwischenlage der beiden miteinander zu verschweißenden Band-Trum-Enden selbstverständlich -, ohne daß die Einzelfinger 30 und 30' von den Metalleinsätzen 21 abgehoben werden.6 shows the division of the pressure finger 13 into two individual fingers 30 and 30 ', each of which is intended to be placed on one of the two metal inserts 21 separated from one another by the table gap 11 required for the welding sword 15 to emerge, which is independent of- one another is ensured as a result of the parting line 31 and the individual spring support 29 in their common holder 35. Bolts 33 on the individual fingers 30, 30 'are guided in elongated holes 34 of the holder 35 and hold them together longitudinally movable against the force of the compression springs 29. Silicone rubber inserts 28 are embedded with anchors 32 between the two individual fingers 30 and 30 'and bridge the parting line 31. They are much softer than the individual compression springs 29. When the welding blade 15 emerges, it is slightly pressed into the silicone rubber insert 28 - under Interposition of the two ends of the band run to be welded together, of course - without the individual fingers 30 and 30 'being lifted off the metal inserts 21.

Claims (3)

Patentansprüche 1. Maschine zum Umschließen von Paketen aus übereinander gestapelten rechteckigen Produkten mit einer Banderole aus thermoplastischen Kunststoff-Band, das zwischen einer oberhalb eines Tisches und einer unterhalb dieses Tisches angeordneten Vorratsrolle durch einen rrischspalt hindurchragt und unter nachgiebiger opannung gehalten ist und unter dem Druck des auf dem Tisch und unterhalb eines Andrückfingers hindurchgeschobenen Pake-ts eine chlauf£it
bildet, deren unteres Trum ein aus einem weiteren, zum erstgenannten Tischspalt in einem Abstand in Pakettransportrichtung nachgeordneten, parallel verlaufenden rIischspalt über die Tischoberfläche auftauchbares Schweißschwert überlappt und deren oberes rum-Ende durch den sich auf das Schweißschwert danach absenkenden andrücldinger über das untere Trum-Ende gelegt wird, wo nach vorzeitigem Absenken eines Niederhalters auf das Paket beide Schlaufentrum-Enden miteinander verschweißt werden und die Schweißnaht danach unter der nach Jiederanheben des Andrückfingers frei werdenden Bandspannung geteilt wird, wobei die um das Paket geschlungene, in sich geschlossene Banderole von dem zusammengeschweißt in der Maschine veribleibenden Band getrennt wird, wobei der Andrückfinger aus zwei auf je eines der beiden durch den für das lluftauchen des Schweißschwerte erforderlichen Tischspalt voneinander getrennten Tischteilen aufsetzbaren Einzelfingern besteht, die einzeln federnd abgestützt sind, dadurch gekennzeichnet, daß der Andrückfinger (13) gegenüber dem Schweißschwert (15) eine nachgiebige, wärmebeständige, kleb-resistente einlage (28) trägt, vorzugsweise aus Siliconkautschuk.Claims 1. Machine for enclosing packages of stacked rectangular products with a banderole made of thermoplastic plastic tape, which protrudes between a supply roll arranged above a table and a supply roll below this table through a rrischspalt and is held under resilient opension and under the pressure of the a packet pushed through on the table and underneath a pressure finger run £ it
whose lower run overlaps a welding blade that emerges from a further, downstream of the first-mentioned table gap at a distance in the package transport direction, running parallel over the table surface and the upper end of which is pushed over the lower end of the run by the finger that is then lowered onto the welding blade is placed, where, after a hold-down device is prematurely lowered onto the package, both ends of the loop are welded together and the weld seam is then divided under the tension released after the pressure finger is lifted again, with the self-contained banderole looped around the package being welded together in the band remaining on the machine is separated, the pressure finger consisting of two individual fingers, which can be placed on one of the two table parts separated from one another by the table gap required for the welding of the welding sword, and which are individually resiliently supported, dad It is characterized in that the pressure finger (13) has a flexible, heat-resistant, adhesive-resistant insert (28), preferably made of silicone rubber, opposite the welding blade (15). 2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Nachgiebigkeit der Einlage (28) größer ist als die der Abfederung (29) der auf je eine der beiden durch den Tischspalt (11 getrennten Metallplatteneinsätze (21) des Tisches (2) aufsetzbaren Einzelfinger (30, 30').2. Machine according to claim 1, characterized in that the flexibility of the insert (28) is greater than that of the cushioning (29) of the metal plate inserts (21) of the table (2) separated by the table gap (11) attachable single finger (30, 30 '). 3. Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einlage (28) zwischen beiden tinzelfingern (30 und 30') eingelassen und verankert ist (bei 32) und die Trennfuge (31) zwischen den beiden Einzelfingern überbrückt.3. Machine according to claim 1 or 2, characterized in that the Insert (28) let in and anchored between the two tiny fingers (30 and 30 ') is bridged (at 32) and the parting line (31) between the two individual fingers.
DE19762627610 1976-06-19 1976-06-19 Machine for enclosing packets in thermoplastic band - forms band loop round packet and welds and separates formed loop Withdrawn DE2627610A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241800A1 (en) * 1992-12-11 1994-06-16 Busch Gerhard Gmbh Device for supplying stacks of sheets to processing station - has extra intermediate plate to support and slide in stack to avoid puckering of bottom sheet
DE4337714A1 (en) * 1993-11-05 1995-05-11 Pkm Maschinen Gmbh & Co Kg Severing and welding apparatus as part of an apparatus for tying a weldable band around packages
DE10017456A1 (en) * 2000-04-07 2001-10-11 Busch Gerhard Gmbh Multiple bundler with integrated feed slide unit
DE19823400B4 (en) * 1998-05-26 2004-07-08 Cyklop Gmbh strapping
EP1593599A1 (en) * 2004-05-05 2005-11-09 Adolf Mohr Maschinenfabrik GmbH & Co. KG Multiple binding apparatus
EP1595793A1 (en) * 2004-05-05 2005-11-16 Adolf Mohr Maschinenfabrik GmbH & Co. KG Apparatus to apply a strapping band around a stack of sheet material
EP1970311A3 (en) * 2007-03-14 2014-12-17 Messersi' Packaging S.R.L. Welding head for strapping machines

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241800A1 (en) * 1992-12-11 1994-06-16 Busch Gerhard Gmbh Device for supplying stacks of sheets to processing station - has extra intermediate plate to support and slide in stack to avoid puckering of bottom sheet
DE4337714A1 (en) * 1993-11-05 1995-05-11 Pkm Maschinen Gmbh & Co Kg Severing and welding apparatus as part of an apparatus for tying a weldable band around packages
DE19823400B4 (en) * 1998-05-26 2004-07-08 Cyklop Gmbh strapping
DE10017456A1 (en) * 2000-04-07 2001-10-11 Busch Gerhard Gmbh Multiple bundler with integrated feed slide unit
EP1153831A2 (en) 2000-04-07 2001-11-14 Gerhard Busch GmbH Multiple bundling apparatus with variable supply
DE10017456B4 (en) * 2000-04-07 2006-11-09 Gerhard Busch Gmbh Multiple bundler with integrated feed slide unit
EP1593599A1 (en) * 2004-05-05 2005-11-09 Adolf Mohr Maschinenfabrik GmbH & Co. KG Multiple binding apparatus
EP1595793A1 (en) * 2004-05-05 2005-11-16 Adolf Mohr Maschinenfabrik GmbH & Co. KG Apparatus to apply a strapping band around a stack of sheet material
EP1970311A3 (en) * 2007-03-14 2014-12-17 Messersi' Packaging S.R.L. Welding head for strapping machines

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