EP0461461A1 - Dispositif pour emballer une pile d'objets avec une housse étirable - Google Patents

Dispositif pour emballer une pile d'objets avec une housse étirable Download PDF

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Publication number
EP0461461A1
EP0461461A1 EP91108657A EP91108657A EP0461461A1 EP 0461461 A1 EP0461461 A1 EP 0461461A1 EP 91108657 A EP91108657 A EP 91108657A EP 91108657 A EP91108657 A EP 91108657A EP 0461461 A1 EP0461461 A1 EP 0461461A1
Authority
EP
European Patent Office
Prior art keywords
hood
stack
film tube
goods
film
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
EP91108657A
Other languages
German (de)
English (en)
Other versions
EP0461461B1 (fr
Inventor
Reiner W. 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.)
Develog Reiner Hannen and Cie
Original Assignee
Develog Reiner Hannen and Cie
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 Develog Reiner Hannen and Cie filed Critical Develog Reiner Hannen and Cie
Publication of EP0461461A1 publication Critical patent/EP0461461A1/fr
Application granted granted Critical
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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 for packaging a stack of goods with a stretch film hood, wherein a tube section which has been pulled off a film tube wrap, is closed at the head with a weld seam and is open on the foot side is cut off from the film tube and the resulting stretch film hood is opened, gathered in the longitudinal direction of the hood and stretched in the transverse direction of the hood and then over the stack of goods is drawn.
  • the invention also relates to a device for carrying out the method with guides for the film tube, a welded connection for the head weld, a separating device for cutting off the stretch film hood from the film tube, a device for gathering, tensioning and pulling the stretch film hood over the stack of goods.
  • a stack of goods is packed with a stretch film hood similar to the packaging of a stack of goods with a shrink film hood, with the proviso that the stretch film hood wraps itself around the stack of goods with its own tension and therefore does not need to be shrunk.
  • a section is pulled off a film tube holder and cut off from the film tube with a separating weld, the head weld seam being turned at the same time.
  • the hood thus formed is then opened and pulled over the stack of goods in the manner described.
  • the separation welding with simultaneous formation of the head weld seam is usually carried out at the end of the gathering process and immediately before the stretch film hood is stretched in the cross direction of the hood. If the head welding seam is also particularly stressed by the tensioning process, it is necessary to let the head welding seam cool down before the tensioning process begins. This reduces the performance when packing stacks of goods.
  • the object of the invention is to accelerate the packaging of stacks of goods in stretch film hoods. In particular, more time should be available to cool the head weld.
  • This object is achieved in that the head welding seam of the following stretch film hood is placed on the film tube, while the respective preceding stretch film hood is stretched and pulled over the stack of goods. This leaves enough time for the head weld to cool down on the following stretch film hood.
  • this head weld seam has cooled so far, that it can withstand the stresses. As a result, the packing of the stacks of goods is accelerated.
  • the head weld (the preceding stretch film hood) is then placed at a distance corresponding to the hood length from the free end of the film tube.
  • hood lengths are also the option of adapting the hood lengths to the heights of the successive stacks of goods if the height of the following stack of goods is measured and the required hood length is determined therefrom and if the head weld seam is placed at a distance corresponding to this hood length from the free end of the film tube.
  • a welding device adjustable in the longitudinal direction of the film is used.
  • a device suitable for carrying out the described method is characterized in that the welding device is arranged in front of the separating device at a distance of a hood length and in the transport direction of the film tube.
  • the formation of the head weld seam and the separation of the stretch film hood from the film tube are carried out independently of one another and in time, so that the advantages already described result.
  • the welding device can be adjustable in the longitudinal direction of the film tube so that it is possible to produce stretch film hoods with different hood lengths from the film tube. An adjustment to the required hood length Successive stacks of goods to be packaged are possible if the welding device has an actuating drive which can be controlled by a height measuring device arranged in the random area of the following stack of goods.
  • the welding device is arranged on a carriage which can be moved along the film tube. It is advisable to arrange the carriage in an area of horizontal guidance of the film tube.
  • a fixed and a movable sealing jaw are arranged on the carriage and the film tube extends between the two sealing jaws.
  • the device shown in the drawing first includes a frame 1, which is arranged above a conveyor 2, on which stacks of goods 3, only one of which is shown, are successively fed to the device.
  • a separating device 4 is arranged in a fixed position and a device 5 for gathering, tensioning and pulling a stretch film hood over the stack of goods 3 guided up and down.
  • This device 5 is held on a carriage 6 which can be moved up and down on a mast 7 arranged next to the frame 1.
  • a carriage (not shown) belongs to the carriage 6.
  • a film tube 9 is first pulled off essentially vertically upwards and then horizontally via a deflection roller 10 to a deflection roller 11, which is located above a take-off device with a motor 12 and associated take-off rollers 13.
  • the take-off rollers 13 are located above the separating device 4.
  • guide rails 14 for a carriage 15 guided thereon are laid in the transport direction of the film tube 9.
  • the carriage has an actuator (not shown) and can be moved back and forth in the direction of the double arrow 16.
  • An upper, fixed welding jaw 17 and a lower, movable welding jaw 18 are arranged on the carriage 15.
  • the lower welding jaw 18 has a drive, not shown, with which it can be moved against the upper welding jaw 17.
  • the film tube 9 extends between the two welding jaws 17, 18.
  • the carriage 15 is moved into such a position that the length of the film tube 9 between the welding jaws 17, 18 and the separating device 4 corresponds to the length of the stretch film hood to be cut by the film tube 9.
  • the parts of the tensioning frame 23 are then moved towards one another so that the edge sections of the film tube held by the grippers 20 are pulled over the outside of the tensioning frame 22.
  • the stenter and its slide 6 can be slightly lowered.
  • gathering rollers 25 are fed against the outer sides of the tenter frame 23.
  • the gathering rollers 25 are driven and pull the film material over the outside of the tenter frame 23, the film material being gathered in the longitudinal direction.
  • the parts of the tenter frame 23 are then moved apart and the stretch film hood is stretched in the circumferential direction. At the same time, the top of the stretch film hood is stretched with the cooled head weld.
  • the device 5 is then lowered over the stack of goods 3, the stretch film hood pulling away from the device 5 and laying tightly around the stack of goods 3.
  • the head weld seam for the next stretch film hood is already attached to the film tube.
  • a height measuring device (not shown) can be arranged in the feed area of the stacks of goods 3, which measures the height of the following stack of goods to be packaged, the required hood length being determined from the measured value and then the carriage 15 is adjusted with the welding jaws 17, 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP19910108657 1990-06-07 1991-05-28 Dispositif pour emballer une pile d'objets avec une housse étirable Expired - Lifetime EP0461461B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9006438U 1990-06-07
DE9006438U DE9006438U1 (de) 1990-06-07 1990-06-07 Vorrichtung zum Verpacken eines Gutstapels mit einer Stretchfolienhaube

Publications (2)

Publication Number Publication Date
EP0461461A1 true EP0461461A1 (fr) 1991-12-18
EP0461461B1 EP0461461B1 (fr) 1994-02-16

Family

ID=6854491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910108657 Expired - Lifetime EP0461461B1 (fr) 1990-06-07 1991-05-28 Dispositif pour emballer une pile d'objets avec une housse étirable

Country Status (3)

Country Link
EP (1) EP0461461B1 (fr)
DE (2) DE9006438U1 (fr)
DK (1) DK0461461T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004058569A2 (fr) 2002-12-23 2004-07-15 Krones Ag Dispositif et procede d'emballage de futs metalliques, notamment de canettes
DE10261550A1 (de) * 2002-12-23 2004-07-15 Krones Ag Vorrichtung und Verfahren zur Verpackung von Gebinden, insbesondere Flaschengebinden

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2336034B1 (fr) * 2009-12-21 2013-01-09 MSK - Verpackungs-Systeme GmbH Dispositif et procédé destinés à l'enveloppement d'une pile de marchandise à l'aide d'une feuille
IT201700106655A1 (it) * 2017-09-22 2019-03-22 Imp A C Srl Incappucciatore con sistema per facilitare la manutenzione

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852937A (en) * 1968-08-06 1974-12-10 Auburn Eng Inc Shrink-wrapping method and apparatus
EP0184485A1 (fr) * 1984-11-12 1986-06-11 Newtec International Procédé et machine d'emballage d'une charge dans un tronçon de gaine en un matériau souple
DE8807293U1 (de) * 1988-06-04 1988-07-21 "Fix" Peter Steimel GmbH & Co KG, 5202 Hennef Vorrichtung zur Herstellung, Befüllung und Zuschweißung von Kunststoffsäcken
EP0344815B1 (fr) * 1988-06-03 1992-03-04 Bernhard Beumer Maschinenfabrik KG Procédé et dispositif pour envelopper des marchandises, en particulier des piles de marchandises avec une housse de film étirable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852937A (en) * 1968-08-06 1974-12-10 Auburn Eng Inc Shrink-wrapping method and apparatus
EP0184485A1 (fr) * 1984-11-12 1986-06-11 Newtec International Procédé et machine d'emballage d'une charge dans un tronçon de gaine en un matériau souple
EP0344815B1 (fr) * 1988-06-03 1992-03-04 Bernhard Beumer Maschinenfabrik KG Procédé et dispositif pour envelopper des marchandises, en particulier des piles de marchandises avec une housse de film étirable
DE8807293U1 (de) * 1988-06-04 1988-07-21 "Fix" Peter Steimel GmbH & Co KG, 5202 Hennef Vorrichtung zur Herstellung, Befüllung und Zuschweißung von Kunststoffsäcken

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004058569A2 (fr) 2002-12-23 2004-07-15 Krones Ag Dispositif et procede d'emballage de futs metalliques, notamment de canettes
DE10261550A1 (de) * 2002-12-23 2004-07-15 Krones Ag Vorrichtung und Verfahren zur Verpackung von Gebinden, insbesondere Flaschengebinden
DE10261550B4 (de) * 2002-12-23 2006-07-06 Krones Ag Vorrichtung und Verfahren zur Verpackung von Gebinden, insbesondere Flaschengebinden

Also Published As

Publication number Publication date
EP0461461B1 (fr) 1994-02-16
DE9006438U1 (de) 1990-09-13
DK0461461T3 (da) 1994-03-14
DE59101018D1 (de) 1994-03-24

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