EP0088424A1 - Procédé et dispositif pour coiffer des piles d'objets palettisées avec des feuilles rétractables - Google Patents

Procédé et dispositif pour coiffer des piles d'objets palettisées avec des feuilles rétractables Download PDF

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Publication number
EP0088424A1
EP0088424A1 EP83102240A EP83102240A EP0088424A1 EP 0088424 A1 EP0088424 A1 EP 0088424A1 EP 83102240 A EP83102240 A EP 83102240A EP 83102240 A EP83102240 A EP 83102240A EP 0088424 A1 EP0088424 A1 EP 0088424A1
Authority
EP
European Patent Office
Prior art keywords
stack
goods
gusseted
tube
station
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Withdrawn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
EP83102240A
Other languages
German (de)
English (en)
Inventor
Rudolf Wild
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.)
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Original Assignee
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
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 INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG filed Critical INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Publication of EP0088424A1 publication Critical patent/EP0088424A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/066—Mobile frames, hoods, posts or the like

Definitions

  • the invention relates to a method for applying shrink film to palletized stacks of goods, in which the film material is pulled from above over a stack of goods and then slipped onto the stack by external heat, further to an apparatus for performing such a method o
  • the application of shrink films to such stacks of goods, which are accommodated on a pallet is generally known prior art. It is a question of the fact that at one end closed, shrink hood-forming film tubes with their open side facing downwards are pulled in a coating station over a stack of goods in this station and are shrunk under the influence of heat in a subsequent station so that they stack the goods under one enclose certain pre-tension in the cooled state.
  • the shrinking station In the case of the coating station, it is generally the case that, at a certain point, for example a conveyor belt serving to convey such stacks of goods picked up on pallets, the shrink hoods which are closed at one end are pulled by hand over the stacks of goods.
  • the stacks of goods equipped with shrink hoods are then conveyed on to the shrinking station, which is generally a shrinking furnace, in the interior of which a stack of goods covered with a film is received and the shrink film is shrunk onto the stack of goods by heating.
  • the invention has set itself the goal of creating a more cost-effective and easy-to-carry out method for applying shrink films to palletized stacks of goods and the creation of a device which serves to carry out the method.
  • the task set in terms of process technology is achieved in that a side-gusseted tube made of shrinkable film material is fed into the Area of its gussets opened and then before opening the stack of goods, the open front side in the feed direction is spread into an open position that is larger than the cross-section of the stack of goods, and then, immediately after the film tube has been pulled onto the stack of goods, the shrink film is heated and thereby shrunk.
  • the invention is characterized by the use of a gusseted tube, which in the area of its gussets during feeding So it is forcibly opened, whereupon the open side is spread into an opening position having a larger cross-section than the stack of goods to be covered, which is easy in view of the pre-opening in the area of the side gussets, in order to then pull downwards over the stack of goods to be equipped with a shrink hood and on it subsequently, that is to say, immediately after the film has been pulled on, to be heated and thereby shrunk onto the stack of goods.
  • the successive work steps can be carried out in one station.
  • a particularly economical method is obtained if, according to a design feature, the side gusseted tube is supplied as an endless material and, after the supply of a length section corresponding to the stack height of the stack of goods to be provided with a shrink film, the latter is separated from the endless side gusseted tube becomes. It can be seen that a method designed according to this feature is particularly suitable for being integrated into the work cycle of a packing line.
  • shrink films of this type are intended to achieve or at least improve the cohesion of palletized stacks of goods, it is important that the shrink film wraps around the lower edge of the entire stack in order to ensure a secure connection between the goods stacked on a pallet and the pallet.
  • the object of the invention is achieved in that, in a station receiving the palletized stack of goods, a heating device acting on the walls of the stack of goods from the outside and means for opening, detecting and spreading the open side of a side gusseted tube made of shrinkable film material fed from above by means of a feed device are provided are, and that the means for grasping and spreading the gusseted tube are guided laterally from the stack of goods over its entire vertical extent to below the bottom edge of the stack, around which at its in Pull the open front side of the open and spread side gusseted hose over the stack of goods.
  • a device designed in this way which makes it possible to implement the above-mentioned method in its basic form, therefore enables this method to be incorporated into the work cycle of a packing line without problems.
  • An embodiment of this device is characterized in that the feed device for the side gusseted tube has two conveyor rollers that receive it between them, rotating in opposite directions, and that two lateral opening wedges are provided as means for opening the open side of the side gusseted tube in the feed direction behind these rollers, which are provided in the side gussets of the Insert the film tube and spread it apart as it is fed to the station. It is, of course, to be assumed that the side gusset hose with flat sides abutting one another and along the two side edges which are spaced apart from one another will be passed between the side folds folded between the flat sides between the conveyor rollers of the feed device.
  • a cutting device is provided for separating predetermined length sections from the continuously supplied gusseted hose, which means that a parallel to the axes of rotation of the conveyor rollers of the Feeder has reciprocally guided knife.
  • a device designed in this way can also be characterized by a welding device with welding jaws running parallel to the axes of rotation of the conveying rollers, if shrink hoods closed at the top are to be used, around the respective rear end of a predetermined length section of the film tube before the separation from the continuous material with a transverse weld seam complete.
  • a further embodiment of the device according to the invention is characterized in that as means for grasping and spreading the open side of the corrugated tube four from below into the area of the side folds Serve pre-opened hose and then swivel into their spreading positions, which can be pivoted to a frame that grips around a stack of goods received in the station and between a position that detects and spreads the open side of the supplied film tube over the palletized stack of goods and one this open side is guided to be vertically movable up to the position under the bottom edge of the stack.
  • the heating device comprises movable heat sources at a distance from the side walls of the palletized stack of goods over the entire stack height and below the bottom edge of the stack, which can be arranged on a frame which encompasses the stack of goods received in the station and between a position is vertically movable under the lower edge of the stack of goods up to a position reaching to the top of the stack.
  • the heating device above the grippers, by means of which the open side of the gusseted tube is gripped and opened and the gusseted tube is pulled from above over a stack of goods received in the station.
  • the palletized goods stacks which are designated in their entirety by 11 and are constructed on a pallet 12 in a palletizer (not illustrated further), by means of an indicated roller conveyor 13 according to arrow 14 into one summarized pulling and shrinking station 15 of the device introduced.
  • This pulling-over and shrinking station is located within a tower-like frame 16, which consists of four vertically running columns 17 which delimit a rectangular cross-section and which are connected to one another at their upper ends via supports 18.
  • the roller conveyor 13 for conveying the palletized stacks of goods 11 extends across this frame-like frame 16 and also serves to remove the stacks of goods from said station after pulling on and shrinking on a shrink film.
  • the roller conveyor is equipped with lifting means (not shown) which, after a palletized goods stack 11 has been fed in the correct position, move up between the conveyor rollers of the roller conveyor and thereby fix the palletized goods stack in its correct position in the station, as shown in FIG. 1.
  • a boom 20 extends with two supports running parallel to one another, between which a supply roll 22 with film material 23 in the form of a gusseted tube rotatable about a horizontal axis 21 is received is.
  • the cross section of this gusseted tube is dimensioned such that this gusseted tube can be pulled over the palletized goods stack 11 in the spread state without any problems.
  • the film tube 23 drawn off from the supply roll 22 is first fed approximately horizontally above the pulling-over and shrinking station 15 and there deflected vertically downward via a deflection roller 24, the turning axis of which runs parallel to the axis of rotation 21 of the supply roll.
  • the means for feeding the film tube to the station 15 are initially two conveyor rollers 25, 25 'rotating in opposite directions below the top chords 18 of the frame 16, the axes of rotation of which likewise extend parallel to the axes of rotation of the deflecting roller 24 and the supply roller 22 and that of the station Take hose material 23 to be supplied between them in such a way that the side folds of the hose material lie in the region of the side edges which are distant from one another.
  • opening wedges 27 are arranged which face the feed direction, the wedge tips of which point upwards and which engage in the side folds when the hose material is supplied. Accordingly, an open side of a supplied side-gusseted tube lying in the area of the opening wedges 27 is pre-opened in the manner shown in FIG. 3, and it is thus possible to insert four grippers 31 arranged on a frame 30 vertically movable within the frame 16 from below into the open side 32 of the supplied side-gusseted tube 23 to introduce.
  • the grippers 31 are stopped in their downward movement and below the Opening wedges 27 arranged welding jaws 38, 38 ', which extend parallel to the conveyor rollers 25, 25', move together and form a transverse welding seam 39 which closes the upper end of this length section of the gusseted tube and which can be seen in the finished shrink hood 40 in FIG. 2.
  • a cutting device not shown, with a conveyor parallel to the axes of rotation Roll-guided knife triggers, which separates the length section of the gusseted tube, which is closed at its rear end in the feed direction by means of the transverse weld, from the endlessly fed film material 23.
  • the conveyor rollers 25, 25 ' which are stopped when the grippers 31 guided on the frame surrounding the station stop, then remain in the rest position, while the grippers 31 are moved vertically downward into a position which extends below the lower edge of the palletized goods stack received in the station 15 11 is enough.
  • the shrink film that is drawn over the stack of goods by means of the grippers therefore extends to below the lower edge of the stack of goods after being pulled up.
  • a vertically movable heating device 42 is provided in the frame 16 enclosing the station 15, which consists of a frame 43 guided in the frame, enclosing the stack of goods 11 received in the station, and gas burners 44 arranged thereon, which are directed towards the side walls of the stack of goods are.
  • This heating device corresponds to the downward movement of the grippers 31 when the film tube is pulled over the one in the station move the stack of goods received into a lower position, in which the burners 44 are ignited as soon as the side gusseted hose with its downward-facing open side is drawn onto the stack of goods above the lower edge thereof.
  • the sections of the gusseted tube consisting of shrinkable film material which extend beyond the lower edge of the stack of goods are first heated and shrunk in such a way that these sections partially wrap around the lower edge of the stack of goods and thereby establish a firm connection between the shrink hoods and the produce the pallet 12 receiving the goods.
  • the heating device 42 moves upwards at a speed corresponding to the requirements of the shrinking process, as the arrow 45 in FIG. 2 indicates.
  • the film material of the shrink hood 40 is gradually shrunk onto the palletized stack of goods, progressively from bottom to top.
  • the grippers 31 move upwards in order to finally to be pivoted in a position above the stack of goods 11 provided with a shrink hood 40 in the station 15 against the directions indicated by the arrows 33, 33 'in FIG. 3 and to engage in the downward-facing open side of the next hose material fed from the roll .
  • a method and a device for fully mechanized drawing and shrinking of shrink films onto palletized goods stacks are thus created, the drawing and shrinking being realized in two immediately successive working steps within a station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Making Paper Articles (AREA)
EP83102240A 1982-03-10 1983-03-08 Procédé et dispositif pour coiffer des piles d'objets palettisées avec des feuilles rétractables Withdrawn EP0088424A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823208544 DE3208544A1 (de) 1982-03-10 1982-03-10 Verfahren und vorrichtung zum aufbringen von schrumpffolien auf palettierte gueterstapel
DE3208544 1982-03-10

Publications (1)

Publication Number Publication Date
EP0088424A1 true EP0088424A1 (fr) 1983-09-14

Family

ID=6157774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102240A Withdrawn EP0088424A1 (fr) 1982-03-10 1983-03-08 Procédé et dispositif pour coiffer des piles d'objets palettisées avec des feuilles rétractables

Country Status (5)

Country Link
EP (1) EP0088424A1 (fr)
JP (1) JPS58171311A (fr)
DE (1) DE3208544A1 (fr)
DK (1) DK112483A (fr)
ZA (1) ZA831663B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651508A (en) * 1985-05-10 1987-03-24 Msk-Verpackungs-System Gesellschaft Mit Beschrankter Haftung Shrink-wrapping apparatus, especially for stacked articles
EP0250647A1 (fr) * 1986-06-25 1988-01-07 Möllers Maschinenfabrik GmbH Installation pour envelopper une charge d'une housse en feuille de rétraction et pour la rétrécir autour de ladite charge
GB2264920A (en) * 1992-01-20 1993-09-15 Carl Hofmann Ringlaufer Und Ri Shrink packaging ring-type items in a seamless tube
EP0597141A1 (fr) * 1992-11-10 1994-05-18 VfI Gesellschaft für Verpackungstechnik mbH Procédé et dispositif pour l'emballage de marchandises empilées sur une palette
EP1000858A1 (fr) * 1998-11-05 2000-05-17 Kurt Lachenmeier A/S Proçédé et dispositif pour appliquer et rétracter une housse d'emballage sur un objet
EP1000864A1 (fr) * 1998-11-05 2000-05-17 Kurt Lachenmeier A/S Proçédé et dispositif pour rétracter une feuille sur un objet
EP1086894A2 (fr) * 1999-09-23 2001-03-28 OFFICINA MECCANICA SESTESE S.p.A. Dispositif pour emballer avec un manchon plastique ayant un système amélioré pour appliquer ce manchon sur une charge
WO2014029376A1 (fr) 2012-08-22 2014-02-27 Forschungszentrum Jülich GmbH Procédé de préparation de vecteurs contenant un gène codant une enzyme, atténué ou désactivé pour l'inhibition de son feed-back, et utilisation desdits vecteurs pour la préparation d'acides aminés et de nucléotides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038416A1 (de) * 1990-12-01 1992-06-04 Nuetro Maschinen & Anlagen Vorrichtung zum ueberziehen von verpackungsgut mit einer schlauchhaube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199498A2 (en) * 1971-08-31 1974-04-12 Applic Thermiques Shrink film wrapping of pallet loads - using lateral guides to minimise film diameter for enclosing off-centre or irregular loads
FR2473985A1 (fr) * 1980-01-17 1981-07-24 Thimon Machine d'emballage d'une charge dans un troncon de gaine en un materiau souple

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199498A2 (en) * 1971-08-31 1974-04-12 Applic Thermiques Shrink film wrapping of pallet loads - using lateral guides to minimise film diameter for enclosing off-centre or irregular loads
FR2473985A1 (fr) * 1980-01-17 1981-07-24 Thimon Machine d'emballage d'une charge dans un troncon de gaine en un materiau souple

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651508A (en) * 1985-05-10 1987-03-24 Msk-Verpackungs-System Gesellschaft Mit Beschrankter Haftung Shrink-wrapping apparatus, especially for stacked articles
EP0250647A1 (fr) * 1986-06-25 1988-01-07 Möllers Maschinenfabrik GmbH Installation pour envelopper une charge d'une housse en feuille de rétraction et pour la rétrécir autour de ladite charge
US4724658A (en) * 1986-06-25 1988-02-16 Mollers Maschinenfabrik Gmbh Arrangement for sliding and shrinking a hood of shrinking foil over and onto a stack
GB2264920A (en) * 1992-01-20 1993-09-15 Carl Hofmann Ringlaufer Und Ri Shrink packaging ring-type items in a seamless tube
EP0597141A1 (fr) * 1992-11-10 1994-05-18 VfI Gesellschaft für Verpackungstechnik mbH Procédé et dispositif pour l'emballage de marchandises empilées sur une palette
EP1000864A1 (fr) * 1998-11-05 2000-05-17 Kurt Lachenmeier A/S Proçédé et dispositif pour rétracter une feuille sur un objet
EP1000858A1 (fr) * 1998-11-05 2000-05-17 Kurt Lachenmeier A/S Proçédé et dispositif pour appliquer et rétracter une housse d'emballage sur un objet
US6298636B1 (en) 1998-11-05 2001-10-09 Kl-Lachenmeier A/S Method and apparatus for packaging an object
US6421983B1 (en) 1998-11-05 2002-07-23 Kl-Lachenmeier A/S Method and apparatus for shrinking a foil onto an object
EP1086894A2 (fr) * 1999-09-23 2001-03-28 OFFICINA MECCANICA SESTESE S.p.A. Dispositif pour emballer avec un manchon plastique ayant un système amélioré pour appliquer ce manchon sur une charge
EP1086894A3 (fr) * 1999-09-23 2002-06-19 OFFICINA MECCANICA SESTESE S.p.A. Dispositif pour emballer avec un manchon plastique ayant un système amélioré pour appliquer ce manchon sur une charge
WO2014029376A1 (fr) 2012-08-22 2014-02-27 Forschungszentrum Jülich GmbH Procédé de préparation de vecteurs contenant un gène codant une enzyme, atténué ou désactivé pour l'inhibition de son feed-back, et utilisation desdits vecteurs pour la préparation d'acides aminés et de nucléotides
DE102012016716A1 (de) 2012-08-22 2014-02-27 Forschungszentrum Jülich GmbH Verfahren zur Herstellung von Vektoren enthaltend ein für in seiner feedback-Inhibierung gemindertes oder ausgeschaltetes Enzym kodierendes Gen und deren Verwendung für die Herstellung von Aminosäuren und Nukleotiden
US9644226B2 (en) 2012-08-22 2017-05-09 Forschungszentrum Juelich Gmbh Method for producing vectors containing a gene coding for an enzyme having reduced or deactivated feedback inhibition and the use thereof for producing amino acids and nucleotides

Also Published As

Publication number Publication date
ZA831663B (en) 1983-12-28
JPS58171311A (ja) 1983-10-08
DK112483D0 (da) 1983-03-08
DK112483A (da) 1983-09-11
DE3208544A1 (de) 1983-09-15

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Inventor name: WILD, RUDOLF