EP0764579A1 - Procédé et dispositif d'emballage d'objets dans une feuille tubulaire en matière plastique rétractable - Google Patents

Procédé et dispositif d'emballage d'objets dans une feuille tubulaire en matière plastique rétractable Download PDF

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Publication number
EP0764579A1
EP0764579A1 EP96114495A EP96114495A EP0764579A1 EP 0764579 A1 EP0764579 A1 EP 0764579A1 EP 96114495 A EP96114495 A EP 96114495A EP 96114495 A EP96114495 A EP 96114495A EP 0764579 A1 EP0764579 A1 EP 0764579A1
Authority
EP
European Patent Office
Prior art keywords
film
pallet
stack
goods
hood
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.)
Granted
Application number
EP96114495A
Other languages
German (de)
English (en)
Other versions
EP0764579B1 (fr
EP0764579B2 (fr
Inventor
Kurt Lachenmeier
Flemming Thomsen
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.)
Signode Denmark ApS
Original Assignee
Kurt Lachenmeier AS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7772577&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0764579(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kurt Lachenmeier AS filed Critical Kurt Lachenmeier AS
Publication of EP0764579A1 publication Critical patent/EP0764579A1/fr
Publication of EP0764579B1 publication Critical patent/EP0764579B1/fr
Application granted granted Critical
Publication of EP0764579B2 publication Critical patent/EP0764579B2/fr
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Classifications

    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
    • B65B9/135—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state for palletised loads

Definitions

  • the invention relates to a method and a device for packaging objects with a tubular plastic film. Such methods and devices are mostly used for packaging stacked goods that are on a pallet.
  • the packaging can on the one hand provide protection against damage and on the other hand prevent the stack of goods from moving.
  • DE 37 07 877 shows a method and a device for packaging objects, in which or with which the film is stretched in the cold state and then pulled over the stack of goods.
  • the tubular film is fed to a frame via a console and opened via suction devices.
  • Grippers are inserted into the slightly opened film, which allow finger elements to be restricted, over which the film is then stretched and pulled in a vertical direction over the stack of goods.
  • a disadvantage of the described device and the method is that the film is stretched horizontally and vertically around the stack of goods, but no means are provided for vertical stretching of the Maintain slide. In the event of shocks and vibrations, this can lead to horizontal folds forming on the film and the stack of goods being able to shift and tilt despite the support of the film itself. This is extremely problematic, in particular, in the case of bulk cargoes filled in bags.
  • the present invention is therefore based on the object of providing a method and a device for packaging objects with a tubular plastic film, which is suitable for fire-endangered and heat-sensitive goods and, in addition, the packaged object is also reliably supported by the film for a long time.
  • the film hood is applied to the object under horizontal and vertical stretching in the elastic region and this stretching is then maintained, the stability of the object increases, in particular if the object is a pallet with a stack of goods.
  • the film hood By preventing a vertical displacement of the film hood, which can easily be caused by shocks or vibrations, it is avoided that the film can stretch again in the vertical direction and the slipping of the stack of goods is counteracted.
  • the object is a stack of goods on a pallet
  • the increased expansion forces due to the reduced opening circumference in the area of the constriction welds result in better adhesion of the film to the pallet, the stack of goods not being damaged by the increased expansion forces.
  • the film hood is placed on the pallet in such a way that conveyors are not prevented from gripping in the elongated recesses of the pallet by the film hood. This is particularly important for transport in automatically operated high-bay warehouses.
  • the device according to the invention can be used more flexibly than conventional packaging machines in spite of a small additional outlay on additional devices. In some cases, the device according to the invention can take over the tasks of a shrink packaging machine without, however, having such a high energy consumption.
  • a tubular film is shown, each of which has a fold on its side edges, so that the corners of the tubular film taper at an acute angle in cross section when slightly open.
  • the tubular film is unwound from a band and provided at a certain point with a continuous weld 1, above which a separating device 2 is provided, on which the tubular film is cut off, so that the cut off part has a hood shape and can be put over an object.
  • narrowing welds 3 are provided at the four corners of the film hood 4. These narrowing welds 3 cause the film hood 4 to contract to a smaller extent at this point after stretching when relaxing.
  • narrowing welds 3 show various exemplary embodiments for narrowing welds 3, the number and the direction of the weld seams varying. It is also possible to vary the number of constriction welds 3 at the four corners or to change the position and number of constriction welds 3 on the film hood 4 itself. For example, additional narrowing welds can also be arranged in the area of the stack in order to fix the film in several sections and to prevent relaxation in the vertical direction.
  • FIG. 3 shows a film hood 4 according to the invention, which has narrowing welds 3 in its lower region at four corners, which are designed in accordance with FIG. 2a are.
  • the narrowing welds 3 are applied by welding devices, not shown.
  • the film hood 4 is pulled over a stack of goods 5 on a pallet 6, the film end 7 being located somewhat below the pallet.
  • the narrowing welds 3 shown in FIGS. 1-3 can be produced simultaneously, before or after the production of the weld seam 1. Irrespective of this, the film hood 4 is stretched over the horizontal circumference of the object before being pulled over the object, the film hood 4 also being stretched in the horizontal direction when in contact with the object.
  • the horizontal stretch of the film hood in the applied state is between 10% and 30%.
  • the film hood 4 can be applied to an object by the constriction welds 3 and can also be stretched in the vertical direction, the vertical restoring forces being counteracted by the adhesive effect of the constriction welds 3.
  • the vertical expansion of the film hood is preferably 5% - 25%.
  • the film hood 4 is coated over a stack of goods 5 on a pallet 6, the constriction welds being arranged in the region of the film end 7, so that the folding edges resulting from the constriction welds 3 are directed into the pallet and are located where a conveyor generally attacks on the pallet 6.
  • the narrowing welds 3 are produced here only after the film hood 4 has been pulled over the stack of goods 5 and the pallet 6.
  • the film hood 4 is gripped in its lower region by grippers, not shown, on which corresponding welding devices are arranged, and the narrowing welds 3 are welded in according to the desired stress state.
  • the narrowing welds 3, which are attached at right angles to the end of the film 7, ensure a particularly stable hold of the film hood 4.
  • FIG. 6 A further exemplary embodiment according to the invention is shown in FIG. 6.
  • the area at the end of the film 7 is applied to the inside of the outer blocks 14 of the pallet 6 by means of a bracket 9 and a stapling machine 12.
  • the film hood 4 is either clamped with the stapling machine 12, the clips 13 being shot into the outer blocks 14 or the pallet bottom, or the area of the film end 7 is stapled to the outer blocks 14 of the pallet 6 by means provided on the bracket 9 under the action of heat. It is also possible not to attach the film hood 4 to the outer blocks 14 but to the bottom board 16.
  • the lower region of the film hood 4 is placed around the two outer blocks 14 in FIG. 7 by means of guide strips 17. Straps 18 are arranged around the outer blocks 14, which are wrapped with foil, which prevent the foil hood 4 from slipping due to the vertical tension in the foil hood 4.
  • FIG. 8 shows how the film hood 4 is only pulled over the stack of goods 5 and the upper edge of the pallet 6.
  • the height to which the film end 7 is pulled down is determined by the bracket strips 19, which are pressed from below onto the pallet 6 between the outer blocks 14.
  • the lower region of the film hood 4 is folded and forms a film band 20 which either counteracts the restoring forces by means of self-locking or is fastened to the pallet 6 in one of the ways described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP96114495A 1995-09-19 1996-09-10 Procédé et dispositif d'emballage d'objets dans une feuille tubulaire en matière plastique rétractable Expired - Lifetime EP0764579B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534743A DE19534743A1 (de) 1995-09-19 1995-09-19 Verfahren und Vorrichtung zum Verpacken von Gegenständen mit einer dehnbaren schlauchförmigen Kunststoffolie
DE19534743 1995-09-19

Publications (3)

Publication Number Publication Date
EP0764579A1 true EP0764579A1 (fr) 1997-03-26
EP0764579B1 EP0764579B1 (fr) 2002-06-05
EP0764579B2 EP0764579B2 (fr) 2006-05-31

Family

ID=7772577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114495A Expired - Lifetime EP0764579B2 (fr) 1995-09-19 1996-09-10 Procédé et dispositif d'emballage d'objets dans une feuille tubulaire en matière plastique rétractable

Country Status (2)

Country Link
EP (1) EP0764579B2 (fr)
DE (2) DE19534743A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006077347A1 (fr) * 2005-01-20 2006-07-27 Saint-Gobain Isover Unite de transport de panneaux
US11097860B2 (en) 2016-07-07 2021-08-24 Signode Industrial Group Llc Packaging method and stretch hood system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9013049U1 (fr) * 1990-09-13 1990-12-06 Develog, Reiner Hannen & Cie, Courtelary, Ch
DE9104072U1 (fr) * 1991-04-04 1991-06-20 Develog, Reiner Hannen & Cie, Courtelary, Ch
DE4327450C1 (de) * 1993-08-14 1995-01-05 Moellers Maschf Gmbh Verfahren und Vorrichtung zum Überziehen einer Stretchfolienhaube über einen Gutstapel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707877A1 (de) * 1987-03-11 1988-09-22 Lachenmeier Kurt Aps Verfahren und vorrichtung zum verpacken von gegenstaenden mit einer bahnfoermigen kunststoffolie
DE3941139A1 (de) * 1989-12-13 1991-06-20 Moellers Maschf Gmbh Verfahren zur herstellung einer palettenlosen verpackungseinheit
DE9001319U1 (fr) * 1990-02-06 1990-04-12 Develog, Reiner Hannen & Cie, Corgemont, Ch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9013049U1 (fr) * 1990-09-13 1990-12-06 Develog, Reiner Hannen & Cie, Courtelary, Ch
DE9104072U1 (fr) * 1991-04-04 1991-06-20 Develog, Reiner Hannen & Cie, Courtelary, Ch
DE4327450C1 (de) * 1993-08-14 1995-01-05 Moellers Maschf Gmbh Verfahren und Vorrichtung zum Überziehen einer Stretchfolienhaube über einen Gutstapel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006077347A1 (fr) * 2005-01-20 2006-07-27 Saint-Gobain Isover Unite de transport de panneaux
CN101107178B (zh) * 2005-01-20 2010-06-16 圣戈班伊索福公司 壁板的输送单元
US7900775B2 (en) 2005-01-20 2011-03-08 Saint-Gobain Isover Panel transport unit
NO340532B1 (no) * 2005-01-20 2017-05-02 Saint Gobain Isover Paneltransportenhet
US11097860B2 (en) 2016-07-07 2021-08-24 Signode Industrial Group Llc Packaging method and stretch hood system

Also Published As

Publication number Publication date
EP0764579B1 (fr) 2002-06-05
DE19534743A1 (de) 1997-03-20
DE59609288D1 (de) 2002-07-11
EP0764579B2 (fr) 2006-05-31

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