EP0205135B1 - Procédé d'emballage d'une pile d'articles déposée sur une palette et dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé d'emballage d'une pile d'articles déposée sur une palette et dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0205135B1
EP0205135B1 EP86107794A EP86107794A EP0205135B1 EP 0205135 B1 EP0205135 B1 EP 0205135B1 EP 86107794 A EP86107794 A EP 86107794A EP 86107794 A EP86107794 A EP 86107794A EP 0205135 B1 EP0205135 B1 EP 0205135B1
Authority
EP
European Patent Office
Prior art keywords
pallet
stack
foil
shrinking
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.)
Expired
Application number
EP86107794A
Other languages
German (de)
English (en)
Other versions
EP0205135A1 (fr
Inventor
Reiner Wilhelm Hannen
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.)
MSK Verpackungs Systeme GmbH
Original Assignee
MSK Verpackungs Systeme 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 MSK Verpackungs Systeme GmbH filed Critical MSK Verpackungs Systeme GmbH
Priority to AT86107794T priority Critical patent/ATE39897T1/de
Publication of EP0205135A1 publication Critical patent/EP0205135A1/fr
Application granted granted Critical
Publication of EP0205135B1 publication Critical patent/EP0205135B1/fr
Expired legal-status Critical Current

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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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat

Definitions

  • the invention relates to a method for packaging a stack of goods arranged on a pallet, in particular from bottles, cans or the like, wherein a shrink hood pulled over the stack of goods progressively shrinks in the vertical direction and with one arranged between the stack of goods and the pallet, over the edge of the pallet protruding film is welded, as known from practice.
  • the invention also relates to an apparatus for performing the method.
  • the shrink hood pulled over the stack of goods is shrunk with a shrink frame, from bottom to top, so that the lower edge of the shrink hood below the pallet forms an undershrink and thereby also welds the film placed on the pallet to the shrink hood.
  • the air then remaining in the shrink hood can no longer escape and is also heated during the subsequent shrinking of the shrink hood.
  • the air expands and there is a so-called balloon formation which, under certain circumstances, expands the shrink hood so much that it no longer shrinks completely even after the air has cooled. For this reason, partial vacuum is already generated in the shrink hood during the formation of the shrink hood, which draws the shrink hood onto the stack of goods.
  • the shrink hood which is generally oversized over the stack of goods, folds around the stack of goods and around the pallet, thereby at least partially restricting the heating of the shrink hood material, on the one hand because of the multiple layers in the area of the folds and on the other hand because of the Contact with surface areas of the stack of goods.
  • the shrink hood forms thin spots next to the folds because the heat stays in the folds longer and the shrink hood with its high cold shrink force pulls film material next to the folds, where the heat has unimpeded access.
  • the folds formed in this way generally run downwards at an angle near the four vertical edges of the stack of goods and form so-called rain gutters, in which water that runs down during external storage finds a way and, if necessary, also penetrates through small holes in the fold area to the stack of goods .
  • the object of the invention is to tightly pack a stack of goods, in particular as hygienic packaging.
  • a device for carrying out the method has a parking space or a conveyor for, a stack of goods arranged on a pallet, a device for covering the stack of goods with a shrink hood, which is gripped at its lower edge by grippers, and a shrinking device which can be moved up and down in the vertical direction and a fan located under the parking space or the conveyor.
  • the device is characterized in that at least one movable foil deflector is provided on the parking space or conveyor outside the space occupied by the pallet, but within the working area of the grippers, which protrudes into the area of the stack of goods in its extended position.
  • Foil deflectors are preferably arranged on opposite sides of the conveyor, in particular in such a way that the foil deflectors are located in the region of the end faces of the pallet, because the lengths are the same on standard pallets and only the widths are different.
  • the one or more foil deflectors are extended so that they protrude into the area of the stack of goods.
  • the shrink hood is pulled over the stack of goods, the ones holding the lower edge of the shrink hood
  • the grippers move outside the foil deflectors. After the grippers have released the lower edge of the shrink hood and moved back to their starting position, the shrinking process can begin, the lower part of the shrink hood being kept away from the stack of goods, the pallet and the film lying on the pallet at least in regions.
  • the film deflectors When the shrinkage reaches the area of the film deflectors, they are removed, for which purpose the film deflectors are preferably pivotably mounted about a horizontal axis and have a swivel drive. The shrinkage then progresses to the lower edge of the shrink hood, and welding is also carried out with the film lying on the pallet.
  • the foil deflectors can be fork-shaped and accordingly have fork tines.
  • the foil deflectors can also be designed as air duct, z. B. in the form of pipes or apertured boxes so that air can be blown under the shrink hood during most of the shrinking process.
  • the surface of the film bumpers can be coated with PTFE (polytetrafluoroethylene).
  • the film deflectors can have a holding device for the lower edge of the shrink hood so that the shrink hood pulled over the stack of material does not slide upwards during the shrinking.
  • the device can also be equipped with a lifting device for lifting the pallet. In this case, the foil deflectors can preferably be moved in the same direction as the pallet moved by the lifting device.
  • a conveyor 1 is shown on which pallets 2 with a stack of goods 3 arranged thereon are transported from bottles.
  • a film 4 On the top of the pallet 2 is a film 4, which protrudes beyond the edge of the pallet.
  • the stack of goods 3 is arranged on the film 4.
  • the stack of goods 3 and the pallet 2 are to be covered with a shrink hood 5 and shrunk in such a way that the shrink hood 5 is welded to the edge of the film 4 and, at the same time, a lower shrinkage is formed under the underside of the pallet 2.
  • a device for covering the stack of goods with a shrink hood In the area of the conveyor 1 there is a device for covering the stack of goods with a shrink hood. Of this device, only grippers 6 are shown, which grip the lower edge 7 of the shrink hood 5 and pull the open shrink hood 5 over the stack 3 of goods.
  • the lower edge 7 of the shrink hood 5 is also pulled over film deflectors 8 arranged on both sides of the conveyor 1, which are pivotally mounted laterally on the conveyor 1 and with the aid of a drive 9, which in the embodiment shown is a compressed air cylinder, in the direction of the double arrows 10 in Fig. 2 are pivotable.
  • the film deflectors 8, of which only one is shown in FIG. 1 are pivoted up onto the stack of goods 3 before the shrink hood 5 is pulled over. They remain in this position even when the grippers 6 have released the lower edge 7 of the shrink hood 5 and have returned to their starting position.
  • the shrink hood 5 can be shrunk - with a frame-shaped shrinking device, the frame of which is somewhat larger than the base of the stack of goods 3 and hot gas is blown from the frame rods onto the shrink hood 5.
  • the shrinking device moves from top to bottom along the stack of goods 3.
  • air is blown under the shrink hood 5 via the foil deflectors 8, which are hollow in the embodiment shown, so that a uniform shrinkage and a wrinkle-free application of the Shrink hood 5 is reached on stack 3.
  • the foil deflectors 8 also have a surface layer of PTFE, so that the heated material of the shrink hood 5 does not get caught on them.
  • the film deflectors 8 can be provided with holding devices or a rough surface so that the lower regions of the shrink hood 5 do not slide upwards when shrinking.
  • a lifting device 12 is provided in the area of the conveyor 1 or between the two conveyor tracks, with which the pallet 2 can be raised as shown, so that the underside of the pallet 2 is free. This gives the possibility of producing a shrinkage by which the stack of goods 3 is additionally held on the pallet 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Stackable Containers (AREA)
  • Packages (AREA)

Claims (12)

1. Procédé d'emballage d'une pile d'objets placée sur une palette et constituée notamment de bouteilles, boîtes métalliques ou objets similaires, selon lequel une enveloppe rétractible (5) tendue au-dessus de la pile d'objets (3) est progressivement rétractée dans le sens vertical, puis est soudée à une feuille (4) qui est intercalée entre la pile d'objets et la palette (2) et dépasse au-delà du bord de cette palette, caractérisé par le fait que le bord inférieur libre (7) de l'enveloppe rétractible (5) tendue au-dessus de la pile d'objets (3) est maintenu, au moins par zones, à distance de la palette et de la feuille (4) qui s'y trouve ; par le fait que l'enveloppe rétractible (5) est rétractée de haut en bas ; et par le fait que le bord libre (7) de l'enveloppe rétractible (5) est libéré et une dépression est engendrée, au-dessous de l'enveloppe rétractible (5), peu avant que la rétraction atteigne la palette (2).
2. Procédé selon la revendication 1, caractérisé par le fait que, en vue de former un retrait inférieur au-dessous de la palette (2), le bord libre (7) de l'enveloppe rétractible (5) est libéré par soulèvement de la palette, avant que la rétraction atteigne l'arête inférieure de cette palette.
3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que l'enveloppe rétractible (5) est maintenue sous une surpression durant la majeure partie du processus de rétraction.
4. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 3, comprenant un reposoir ou un convoyeur (1) pour une pile d'objets (3) placée sur une palette (2) ; un mécanisme pour revêtir la pile d'objets à l'aide d'une enveloppe rétractible (5), qui est saisie par des organes de préhension (6) sur son bord inférieur (7) ; un mécanisme de rétraction, pouvant accomplir un mouvement alternatif dans le sens vertical ; et une soufflerie (11) installée au-dessous du reposoir ou du convoyeur, caractérisé par le fait qu'au moins un repousse-feuilles (8) mobile, prévu sur le reposoir ou le convoyeur (1) en dehors de l'espace exigé par la palette (2), mais cependant à l'intérieur de la zone de travail des organes de préhension (6), s'étend jusqu'au voisinage de la pile d'objets lorsqu'il occupe sa position déployée.
5. Dispositif selon la revendication 4, caractérisé par des repousse-feuilles (8) sur des côtés opposés du reposoir ou convoyeur (1).
6. Dispositif selon la revendication 4 ou 5, caractérisé par le fait que les repousse-feuilles (8) sont montés pivotants autour d'un axe horizontal, et présentent un entraînement (9) en pivotement.
7. Dispositif selon l'une des revendications 4 à 6, caractérisé par le fait que les repousse-feuilles (8) sont de réalisation fourchue, et comportent des fourchons.
8. Dispositif selon l'une des revendications 4 à 7, caractérisé par le fait que les repousse-feuilles (8) sont réalisés sous la forme de canaux de passage d'air.
9. Dispositif selon l'une des revendications 4 à 8, caractérisé par le fait que les surfaces des repousse-feuilles (8) sont revêtues de PTFE.
10. Dispositif selon l'une des revendications 4 à 9, caractérisé par le fait que les repousse-feuilles (8) présentent un système de retenue pour le bord inférieur (7) de l'enveloppe rétractible (5).
11. Dispositif selon l'une des revendications 4 à 10, caractérisé par un mécanisme élévateur (12) pour soulever la palette (2).
12. Dispositif selon l'une des revendications 4 à 11, caractérisé par le fait que les repousse-feuilles (8) peuvent être animés d'un mouvement dans le même sens que la palette (2) mue par le mécanisme élévateur (12).
EP86107794A 1985-06-14 1986-06-07 Procédé d'emballage d'une pile d'articles déposée sur une palette et dispositif pour la mise en oeuvre du procédé Expired EP0205135B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86107794T ATE39897T1 (de) 1985-06-14 1986-06-07 Verfahren zum verpacken eines auf einer palette angeordneten gutstapels und vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3521416 1985-06-14
DE19853521416 DE3521416A1 (de) 1985-06-14 1985-06-14 Verfahren zum verpacken eines auf einer palette angeordneten gutstapels und vorrichtung zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0205135A1 EP0205135A1 (fr) 1986-12-17
EP0205135B1 true EP0205135B1 (fr) 1989-01-11

Family

ID=6273318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107794A Expired EP0205135B1 (fr) 1985-06-14 1986-06-07 Procédé d'emballage d'une pile d'articles déposée sur une palette et dispositif pour la mise en oeuvre du procédé

Country Status (3)

Country Link
EP (1) EP0205135B1 (fr)
AT (1) ATE39897T1 (fr)
DE (2) DE3521416A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0283541B1 (fr) * 1987-03-26 1991-09-25 VFI Gesellschaft für Verpackungstechnik mbH Procédé et appareil pour rétrécir une housse en plastique autour d'une charge palettisée
DE8816085U1 (fr) * 1988-12-24 1989-03-09 Msk-Verpackungs-Systeme Gmbh, 4190 Kleve, De
FR2850949B1 (fr) * 2003-02-10 2005-10-21 Thimon Dispositif et procede d'emballage d'une charge palettisee au moyen d'une housse a film en matiere plastique thermoretractable
US7699171B2 (en) 2004-11-20 2010-04-20 Consolidated Container Company Lp Stackable containers and methods of manufacturing, stacking, and shipping the same
EP2592006B1 (fr) 2010-09-27 2014-07-16 Felix Waldner GmbH Procédé d'emballage d'un produit d'emballage et emballage pour un produit d'emballage
DE102015122597A1 (de) * 2015-12-22 2017-06-22 Gebr. Heinemann SE & Co. KG Verfahren und Vorrichtung zur manipulationssicheren Versieglung von Packgut
EP4166463B1 (fr) 2021-10-15 2024-04-03 Felix Waldner GmbH Procédé d'emballage d'un produit à emballer et emballage pour un produit à emballer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082861A5 (en) * 1970-03-25 1971-12-10 Hurdequint Louis Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets
FR2161527A7 (fr) * 1971-11-23 1973-07-06 Applic Thermiques
ATE20015T1 (de) * 1982-12-30 1986-06-15 Msk Verpackung Syst Gmbh Verfahren und vorrichtung zum einschrumpfen einer schrumpfhaube, die ueber einen insbesondere palettierten gutstapel gezogen ist.
DE3327996A1 (de) * 1983-08-03 1985-02-14 MSK - Verpackungs-Systeme GmbH, 4190 Kleve Verfahren zum verpacken von palettierten gutstapeln und vorrichtung zur durchfuehrung dieses verfahrens

Also Published As

Publication number Publication date
ATE39897T1 (de) 1989-01-15
DE3521416A1 (de) 1986-12-18
DE3661714D1 (en) 1989-02-16
EP0205135A1 (fr) 1986-12-17

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