EP0269809B1 - Dispositif de fabrication d'une unité d'emballage enveloppée complètement avec une feuille rétractable - Google Patents

Dispositif de fabrication d'une unité d'emballage enveloppée complètement avec une feuille rétractable Download PDF

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Publication number
EP0269809B1
EP0269809B1 EP87114321A EP87114321A EP0269809B1 EP 0269809 B1 EP0269809 B1 EP 0269809B1 EP 87114321 A EP87114321 A EP 87114321A EP 87114321 A EP87114321 A EP 87114321A EP 0269809 B1 EP0269809 B1 EP 0269809B1
Authority
EP
European Patent Office
Prior art keywords
shrink
stack
niches
foil
shaping
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 - Lifetime
Application number
EP87114321A
Other languages
German (de)
English (en)
Other versions
EP0269809A1 (fr
Inventor
Olaf Dr.Ing. Klüpfel
Richard Birkenfeld
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.)
Maschinenfabrik Moellers GmbH
Original Assignee
Maschinenfabrik Moellers 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 Maschinenfabrik Moellers GmbH filed Critical Maschinenfabrik Moellers GmbH
Priority to AT87114321T priority Critical patent/ATE59025T1/de
Publication of EP0269809A1 publication Critical patent/EP0269809A1/fr
Application granted granted Critical
Publication of EP0269809B1 publication Critical patent/EP0269809B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 is directed to a device for producing a packaging unit completely covered with shrink film according to the preamble of claim 1.
  • two profiling devices must also be provided, namely one in front of the shrinking device for profiling the niches, if these are on top, and one after the shrinking device for profiling the niches, if these after turning the stack are below.
  • a stack is conveyed on leaving a shrinking furnace on a conveyor and, with the shrink film hood partially drawn into the niches, is fed to a station which has roller sets that can enter the niches.
  • the roller sets are initially used as conveying elements, the stack is placed on a lowerable, rollable area, this is lowered by the roll dimension, the rollers then move into the niches, whereupon the stack is lowered so that the roller sets open the shrunk hood areas press the bottom of the excess of the stack.
  • a further device in which a single shrink film application device and a single shrinking device are designed as a combination device, and in which the shaping tools of the profiling device are permanently assigned to a subsequent turning device, the shaping tools being used by Drive means arranged on the turning device after the application and shrinking of the first shrink film in the form position in the niches, after turning the stack in the release position and after returning the stack to the combined shrink film application and shrinking device and covering and shrinking the second shrink film there and then feeding it again Turning device for re-profiling the niches can be moved back into the form position and subsequently for releasing the stack laterally into the release position.
  • This device is characterized by a small footprint and little equipment.
  • the arrangement of the shaping tools in the area of the turning device will not result in a perfect profiling of the niches, since the film may already have cooled to a large extent during the transport from the shrinking device to the turning device required before profiling that the film pulls diagonally over the niches due to the strong shrinking forces developed during cooling and can thus be injured when the molds are attacked.
  • these phenomena can have different degrees of severity.
  • the object of the invention is to provide a solution with which, while maintaining the possibility of a compact design, a perfect shaping of the niches without risk of damage to the shrink film is possible.
  • this object is achieved according to the invention in that the shaping tools of the profiling device are arranged in the region of their conveying and standing path in the shrinking device designed as a vertically movable shrinking frame.
  • the profiling device can be activated by the shrink frame immediately after the application of heat, i.e. the stack no longer has to travel any distances and the film has not yet cooled, so that injuries to the film when the niches are formed can be reliably avoided.
  • the control can be made so that the shrink frame e.g. is first lowered over the stack with the film hood to be shrunk down in the direction of the transport path and then moved upward again with the application of heat, with this upward movement of the shrink frame, i.e. after the release of the niche area, the molding tools of the profiling device are inserted into the niches.
  • the shrink film application device and the shrink frame are designed as a combination device.
  • This configuration achieves a particularly compact design, the shaping tools of the profiling device then being arranged accordingly in the combination device.
  • molding tools of the profiling device are additionally provided in the opposite upper area of the shrinking device. It is thereby achieved that not only the lower stack area to be treated can be processed with molding tools, but also the upper one as soon as the heat application by the shrinking frame in the upper area of the stack has ended. This is particularly important if an upper special layer was first formed on a stack, in order to later serve as a standing area for palletless packaging and to provide the niches for the forks of fork-lift trucks. If this special layer, which is initially on top, is shrink-wrapped by means of a shrink hood, it is useful to ensure the niche formation here already by means of molding tools.
  • the invention also provides that the molding tools are designed as roller sets which are known per se and can be inserted into the niches on the stack and which ensure particularly good shaping of the niches.
  • the region of the conveying and standing track which can be raised and lowered is shorter and / or narrower than the special layer in the region of the shrinking device.
  • a shrink film hood placed over the stack can also cover large areas of the bottom surface of such a stack, since this liftable and lowerable web area only acts on parts of the bottom surface.
  • the shrinking can therefore not only take place in the area of the niches, but also extend into the floor area of the special layer which is then below.
  • the covered hoods can cover large areas on the bottom surface of the pallet.
  • the invention provides that the molding tools are guided in their pressing or shaping movement by means of constrained guides, in particular link surfaces, which are arranged fixedly on the lifting and lowering device.
  • constrained guides in particular link surfaces, which are arranged fixedly on the lifting and lowering device.
  • the molds can e.g. be positively guided by means of rollers over corresponding slide tracks, be it over their entire path relative to the stack or at least over partial distances.
  • roller sets of the molding tools can be designed such that they can be raised and lowered, as a result of which the molding tools can be moved in two dimensions.
  • 1 to 5 initially only show elements of the common conveying and standing path F which is arranged in the area of a shrink film applicator (not shown) with a simultaneous shrinking device.
  • the essential elements of this part of the overall device consist of a belt conveyor B on a scissor lift table S (not shown in more detail) and the belt conveyor B in the conveying direction of surrounding rollers R.
  • profiling devices P are arranged, the function of which, particularly in connection with below 4 and 5 is described in more detail.
  • the belt conveyor B is manufactured in a known manner, i.e. it has an electromotive drive (not described in more detail), tape guide and tensioning rollers and the like. More.
  • the belt conveyor B can be moved up and down out of the plane of the conveyor track F by a considerable amount via the scissor lifting table S, as is indicated schematically in FIG. 6.
  • the size of the belt conveyor is such that it is shorter than the special layer of a packaging unit, as seen in the conveying direction, as well as narrower, in such a way that when the special layer is placed on the conveyor track, the lateral short conveyor rollers R support the stack edges.
  • the profiling devices P are shown in FIGS. 4 and 5 and initially generally designated 1.
  • Each of these profiling devices 1 has a frame 2 designed as a rocker with guide rollers 3 and 4, which interact with the flanges and the web of essentially U-shaped profiles (FIG. 5).
  • each profiling device On the side facing the conveyor track F, each profiling device carries a roller set 6 with two rollers 7 in the example shown.
  • Each frame 2 can be raised and lowered via a reciprocating piston 8 (FIG. 3), as is shown by the double arrow 9 in the upper part of FIG. 4.
  • the articulation point of the piston-cylinder unit 8 is designated by 10 in FIG. 5.
  • the lower, A fixed articulation point to, for example, a cross strut 11 has the reference number 12 in FIG. 3.
  • the profiling device 1 is guided over guide surfaces 13 and 14, which are shown schematically in FIG. 4, at the upper ends of the flanges of the aforementioned U-profiles, the guide surface 14, which enables a greater pivoting movement, to be provided on the side facing the belt conveyor B.
  • the opposite slotted surface 13 which allows a slightly smaller expansion of the spreading angle of the rockers 2, is arranged on the side facing away from the belt conveyor.
  • the profiles 7 can thus be seen to perform a pivoting movement, as is shown in the upper part of FIG. 4 by a double arrow, which bears the reference symbol 15 and which is to represent the different pivoting-out path due to the different arrow length.
  • a stack of goods 16 is shown in FIG. 6.1 with a special layer 17 lying on top.
  • a shrink frame designated 18 surrounds this stack of goods, heat application flames 19 only being indicated; this is not important.
  • Position 6.2 shows the stack of goods 16 in the raised position with a first film hood 20 covered by means of a shrink film applicator 21.
  • the shrink film applicator is now moved and the shrink frame 18 is lowered, where appropriate, whereupon the shrink frame begins to apply heat, so that part of the shrink hood 20, designated 22 in Fig. 6.3, shrinks under the floor.
  • the shrink frame 18 and the shrink film application device 21 can expediently be designed as a component as a so-called combination device.
  • Fig. 6.3 shows that after applying the heat to the entire shrink film, a profiling device P 'can be provided, which presses the still warm, shrunk-on hood into the corners between the stack 16 and the special layer 17.
  • the stack of goods 16 with its special layer 17 is positioned on the belt conveyor B and raised from the aligned position shown in FIG. 6.5 to the raised position according to FIG. 6.6.
  • a second shrink film hood 20 '(counter hood) is applied by means of the shrink film applicator 21, which is not shown there, the shrink frame 18 moves downward and begins to apply heat from the bottom up until the second hood has shrunk, as shown in FIG. 6.7.
  • 6.8 shows the stack 16, lowered into the plane of the conveyor F.
  • the stack of goods 16 can remain in the conveying plane F ', then the roller sets 6 are raised according to arrow 9 (FIG. 6.9'), they form the corner and are then lowered again ( Fig. 6.10 ' ), so that finally the stack of goods 16 can leave the device (Fig. 6.11').
  • the stack of goods 16 can be lowered from the conveying plane F (FIG. 6.9) in such a way that the roller sets 6 form the corners accordingly.
  • the stack 16 is then raised again to the level F (FIG. 6.10), in order to finally leave the entire device for further processing (FIG. 6.11).
  • the profiling devices can also be provided laterally on the belt conveyor B transversely to the conveying direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Wrappers (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Packages (AREA)
  • Specific Conveyance Elements (AREA)

Claims (8)

1. Dispositif pour la mise en oeuvre d'un procédé de fabrication d'une unité d'emballage renfermant plusieurs rangées d'objets empilés les uns sur les autres, et intégralement enveloppée par une feuille rétractible, plusieurs rangées d'objets étant tout d'abord empilées les unes sur les autres avec une même surface de base, rangées sur lesquelles une rangée d'objets isolée est ensuite empilée de manière à former au moins deux niches mutuellement parallèles, pour l'engagement ultérieur d'organes de support d'un engin de levage, puis l'on dépose, sur toute la pile, une première feuille rétractible qui est ensuite intimement rétractée sur ladite pile, par apport de chaleur, après quoi la pile intégrale est animée d'une rotation de 180°, de façon telle que la rangée isolée se place vers le bas avec les niches, ensuite de quoi une seconde feuille rétractible est déposée sur la pile, puis est intimement rétractée sur ladite pile, par apport de chaleur, les feuilles rétractibles étant déformées dans les niches après la rétraction de la seconde feuille rétractible, comprenant un dispositif (21) délivreur de feuilles rétractibles, un dispositif de thermorétraction (18), un dispositif de retournement (23) et un dispositif de profilage (P) pour déformer les feuilles rétractibles dans les niches, ainsi qu'une piste (F) de convoyage et d'attente, s'étendant à travers tous les dispositifs, caractérisé par le fait que les outils de conformation (7) du dispositif de profilage (1) sont installés dans le dispositif de thermorétraction, réalisé sous la forme d'un cadre de thermorétraction (18) mobile en hauteur, au voisinage de sa piste (F) de convoyage et d'attente.
2. Dispositif selon la revendication 1, caractérisé par le fait que le dispositif (21) délivreur de feuilles rétractibles et le cadre de thermorétraction (18) sont réalisés sous la forme d'un dispositif combiné.
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que des outils de conformation (7) du dispositif de profilage (1) sont également prévus, additionnellement, dans la région supérieure opposée du dispositif de thermorétraction.
4. Dispositif selon la revendication 1 ou l'une des suivantes, caractérisé par le fait que les outils de conformation (7) sont réalisés sous la forme de jeux (6) de rouleaux connus par eux-mêmes, qui peuvent pénétrer dans les niches sur la pile (16).
5. Dispositif selon la revendication 1 ou l'une des suivantes, muni d'une région soulevable et abaissable de la piste de convoyage et d'attente, caractérisé par le fait que la région (B) soulevable et abaissable de la piste (F) de convoyage et d'attente est plus courte et/ou plus étroite que la rangée isolée (17), au voisinage du dispositif de thermorétraction.
6. Dispositif selon la revendication 1 ou l'une des suivantes, caractérisé par le fait que le mouvement respectif de compression ou de déformation des outils de conformation (7) est guidé par des guidages, notamment des surfaces de coulissement (13, 14), occupant des positions fixes sur le dispositif (S) de soulèvement et d'abaissement.
7. Dispositif selon la revendication 6, caractérisé par le fait que les outils de conformation (7) sont réalisés avec faculté de soulèvement et d'abaissement, et les surfaces fixes de coulissement (13, 14) sont prévues dans le sens du convoyage longitudinal et/ou transversal.
8. Dispositif selon la revendication 6 ou 7, caractérisé par le fait que les jeux (6) de rouleaux des outils de conformation (7) sont disposés sur des poutrelles mobiles (2) à sollicitation élastique (24).
EP87114321A 1986-11-18 1987-10-01 Dispositif de fabrication d'une unité d'emballage enveloppée complètement avec une feuille rétractable Expired - Lifetime EP0269809B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114321T ATE59025T1 (de) 1986-11-18 1987-10-01 Vorrichtung zur herstellung einer vollstaendig mit schrumpffolie umhuellten verpackungseinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863639472 DE3639472A1 (de) 1986-11-18 1986-11-18 Vorrichtung zur herstellung einer vollstaendig mit schrumpffolie umhuellten verpackungseinheit
DE3639472 1986-11-18

Publications (2)

Publication Number Publication Date
EP0269809A1 EP0269809A1 (fr) 1988-06-08
EP0269809B1 true EP0269809B1 (fr) 1990-12-12

Family

ID=6314258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114321A Expired - Lifetime EP0269809B1 (fr) 1986-11-18 1987-10-01 Dispositif de fabrication d'une unité d'emballage enveloppée complètement avec une feuille rétractable

Country Status (6)

Country Link
US (1) US4845918A (fr)
EP (1) EP0269809B1 (fr)
AT (1) ATE59025T1 (fr)
DE (2) DE3639472A1 (fr)
ES (1) ES2020241B3 (fr)
RU (1) RU1836253C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6772575B2 (en) * 2002-12-30 2004-08-10 Lantech Management Corp. And Lantech Holding Corp. Shrink wrap apparatus and method of shrink wrapping products
US20060000731A1 (en) * 2004-06-30 2006-01-05 Hayne Cheryl A Abrasive article packaging and method of making same
US20060003121A1 (en) * 2004-06-30 2006-01-05 Scheller Joseph A Abrasive article packaging and method of making same
US7661247B2 (en) * 2005-06-30 2010-02-16 3M Innovative Properties Company Abrasive article packaging and method of making same
ES2670069T3 (es) * 2016-10-18 2019-09-11 Maschf Moellers Gmbh Procedimiento para fabricar una unidad de envasado sin palés y unidad de envasado fabricada según el procedimiento
JP6647345B2 (ja) * 2018-06-14 2020-02-14 コアレックス信栄株式会社 梱包体の製造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7130493U (de) * 1971-11-18 Heraeus Wc Gmbh Schrumpfofen
DE2020440B1 (de) * 1970-04-27 1971-04-29 Keller & Co Masch C Vorrichtung zum Transport von folienumhuellten keramischen Erzeugnissen,insbesondere Ziegelstapel
BE795279A (fr) * 1972-02-11 1973-05-29 Magnusson Gustav G Charge de marchandises comportant une pluralites de couches, et procede et machine pour la realisation de ladite charge
DE2760250C2 (de) * 1976-04-03 1986-08-14 Birkenfeld, Richard Verfahren und Vorrichtung zur Herstellung palettenloser Verpackungseinheiten
DE2702613C2 (de) * 1977-01-22 1985-04-11 Birkenfeld, Richard Verfahren zur Herstellung palettenloser Verpackungseinheiten
AT372348B (de) * 1976-04-03 1983-09-26 Moellers E Fa Verfahren zur herstellung eines palettenlosen kollis und vorrichtung zur durchfuehrung des verfahrens
DE2760249C2 (de) * 1976-04-03 1985-11-07 Birkenfeld, Richard Vorrichtung zur Herstellung palettenloser Verpackungseinheiten
DE2614558C3 (de) * 1976-04-03 1985-04-18 Birkenfeld, Richard Verfahren und Vorrichtung zur Herstellung palettenloser Verpackungseinheiten
DE2743568C2 (de) * 1977-09-28 1983-09-29 Richard Birkenfeld Verfahren und Vorrichtung zur Herstellung palettenloser Kollis
IT1101694B (it) * 1978-02-18 1985-10-07 Moellers Maschf Dispositivo per uniformare parti di fogli di copertura a restringimento in zone rientranti laterali di una catasta
DE2839089C2 (de) * 1978-09-08 1980-07-17 Birkenfeld, Richard, 4720 Beckum Vorrichtung zum Entformen von Schrumpffolienhaubenteilen in Nischen eines Stapels
DE2916298A1 (de) * 1979-04-21 1980-10-30 Laessig Foerdertech Hamburg Verfahren zur herstellung von palettenlosen, wasserdichten ladeeinheiten aus saecken
FR2481995B1 (fr) * 1980-05-06 1986-03-28 Thimon Dispositif de conformation d'un film de matiere plastique thermoretractable recouvrant les espaces lateraux de prehension d'une charge sans palette a lit reduit
DE3117531A1 (de) * 1981-05-04 1982-11-18 Kurt Lachenmeier ApS, 6400 Soenderborg Verfahren und vorrichtung zum verpacken von stapeln u. dgl. mit einer heissschrumpffolie
DE3120215A1 (de) * 1981-05-21 1982-12-16 Bernhard Beumer Maschinenfabrik Kg, 4720 Beckum "anlage zum herstellen palettenloser, folienumschrumpfter stueckgutstapel, insbesondere sackstapel"
EP0077508B1 (fr) * 1981-10-16 1985-04-03 MSK-Verpackungs-Systeme Gesellschaft mit beschränkter Haftung Procédé et dispositif d'emballage de piles d'objets palettisés
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
DE3621296A1 (de) * 1986-06-25 1988-01-14 Moellers Maschf Gmbh Vorrichtung zur herstellung einer vollstaendig mit schrumpffolie umhuellten, palettenlosen verpackungseinheit

Also Published As

Publication number Publication date
ES2020241B3 (es) 1991-08-01
DE3639472C2 (fr) 1991-02-28
DE3766692D1 (de) 1991-01-24
RU1836253C (ru) 1993-08-23
EP0269809A1 (fr) 1988-06-08
ATE59025T1 (de) 1990-12-15
US4845918A (en) 1989-07-11
DE3639472A1 (de) 1988-05-19

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