EP0137443A2 - Apparatus for skrinking a wrapping foil around a parcel - Google Patents

Apparatus for skrinking a wrapping foil around a parcel Download PDF

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Publication number
EP0137443A2
EP0137443A2 EP84111758A EP84111758A EP0137443A2 EP 0137443 A2 EP0137443 A2 EP 0137443A2 EP 84111758 A EP84111758 A EP 84111758A EP 84111758 A EP84111758 A EP 84111758A EP 0137443 A2 EP0137443 A2 EP 0137443A2
Authority
EP
European Patent Office
Prior art keywords
package
pallet
shrink hood
lifting
pack
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
EP84111758A
Other languages
German (de)
French (fr)
Other versions
EP0137443A3 (en
EP0137443B1 (en
Inventor
Friedrich Koblofsky
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.)
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Original Assignee
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co 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 Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG filed Critical Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Priority to AT84111758T priority Critical patent/ATE24159T1/en
Publication of EP0137443A2 publication Critical patent/EP0137443A2/en
Publication of EP0137443A3 publication Critical patent/EP0137443A3/xx
Application granted granted Critical
Publication of EP0137443B1 publication Critical patent/EP0137443B1/en
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 device for shrinking a film cover onto a package, in particular with a pallet, with the features listed in the preamble of claim 1.
  • a lifting drive is used to lift and lower the shrink hood and, separately from this, a lifting device with its own drive is used to lift and lower the package. Due to the coordination of the movements of the shrink hood and package, these separate drives cause considerable control and cost expenditure.
  • the object of the invention is therefore to create a device with which this expenditure is reduced.
  • the drive according to the invention for the opposite movement of the shrink hood and package requires practically no control effort and reduces the costs for creating the device. At the same time, it enables a simultaneous lowering of the shrink hood over the package and lifting of the package to the required extent from the conveyor.
  • the shrink hood 1 consists of a box which is open at the bottom and which is equipped on the inside with heating devices (not shown) and is suspended on cables 3 on cable drums 4 so that they can be raised and lowered.
  • the cable drums 4 are fastened on a trowel 2 which is mounted horizontally in the frame 15 and is driven by a motor 16.
  • the package 5 to be shrink-wrapped with the shrink-insulated sleeve 6 loosely placed over it is brought under the area of the shrink hood 1 with a conveyor device 7, the package 5 generally being on a pallet 8.
  • the shrink hood 1 is lowered over the package 5 (FIG.
  • each chain 10 is a spring 11 which is tensioned in the starting position, ie with the hood 1 raised and the package 5 lowered can be.
  • Another link of each endless chain 10 is a rod 12 located below the spring 11 with an adjustable stop 13 attached to it. The rod 12 is guided in an eyelet 14 which functions as a counter-stop and is fastened to the frame 15 of the device.
  • the endless chains 10 are simultaneously put into circulation by the shaft 2 until the stop 13 meets the counter-stop 14. From this moment, the endless chains 10 to the pulley and the springs 11 are relaxed at the same time. As a result, the lifting frame 9 with the package 5 is lifted off the conveyor and raised so far that the film envelope 6 hangs freely down from the lower edge of the package 5 or the pallet and can be shrunk. To adjust the stroke, the stop 13 can be adjustably attached to the rod 12. The stroke of the frame 9 is determined by the distance between the stops 13 and 14 in the starting position. I.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

1. A device operating in the vertical direction of movement for shrinking a plastic sheet envelope (6) on to a pack (5) comprising, in particular, a pallet, a shrink hood (1) of a size sufficient to cover the pack and pallet, if used, which can be raised and lowered by means of a hoisting device and which inside is equipped with heaters for shrinking the plastic sheet envelope when lowered over a pack loosely covered with the said plastic sheet envelope, said pack being conveyable to the area underneath the shrink hood (1) by means of a conveyer and raisable from that conveyer by means of a lifting device far enough to permit the plastic sheet envelope (6) to hang down freely beyond the bottom edge of the pack (5) or the pallet, characterized in that the hoisting device for the shrink hood (1) and the lifting device for the pack (5) are coupled together to be jointly driven by a common hoist drive (2, 16) incorporating a compensating device (11-14) to compensate for the difference in length between the lowering travel of the shrink hood (1) and the shorter lifting travel for lifting the pack (5) or pallet (8) from the conveyer (7).

Description

Die Erfindung betrifft eine Vorrichtung zum Aufschrumpfen einer Folienhülle auf ein Paket, insbesondere mit einer Palette, mit den im Oberbegriff des Anspruchs 1 aufgeführten Merkmalen.The invention relates to a device for shrinking a film cover onto a package, in particular with a pallet, with the features listed in the preamble of claim 1.

Bei einer bekannten Vorrichtung dieser Art wird ein Hubantrieb zum Heben und Senken der Schrumpfhaube und gesondert hiervon eine Hubeinrichtung mit eigenem Antrieb zum Heben und Senken des Pakets verwendet. Diese separaten Antriebe verursachen wegen der Abstimmung der Bewegungen von Schrumpfhaube und Paket aufeinander einen erheblichen Steuerungs- und Kostenaufwand.In a known device of this type, a lifting drive is used to lift and lower the shrink hood and, separately from this, a lifting device with its own drive is used to lift and lower the package. Due to the coordination of the movements of the shrink hood and package, these separate drives cause considerable control and cost expenditure.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zu schaffen, mit der dieser Aufwand verringert wird.The object of the invention is therefore to create a device with which this expenditure is reduced.

Diese Aufgabe wird erfindungsgemäß mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Maßnahmen gelöst.This object is achieved with the measures specified in the characterizing part of claim 1.

Der erfindungsgemäße Antrieb für die gegensinnige Bewegung von Schrumpfhaube und Paket erfordert praktisch keinen Steuerungsaufwand und vermindert die Kosten für die Erstellung der Vorrichtung. Zugleich ermöglicht er ein gleichzeitiges Absenken der Schrumpfhaube über das Paket und Abheben des Pakets im erforderlichen Maße von der Fördereinrichtung.The drive according to the invention for the opposite movement of the shrink hood and package requires practically no control effort and reduces the costs for creating the device. At the same time, it enables a simultaneous lowering of the shrink hood over the package and lifting of the package to the required extent from the conveyor.

Zweckmäßige Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Useful embodiments of the invention result from the subclaims.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt und nachstehend erläutert. Es zeigen:

  • Fig. 1 die Vorrichtung im Schnitt quer zur Fördereinrichtung der Pakete,
  • Fig. 2 die Vorrichtung in Seitenansicht mit in Ausgangsstellung befindlicher Schrumpfhaube,
  • Fig. 3 die gleiche Seitenansicht mit abgesenkter Schrumpfhaube und angehobenem Paket in Endstellung für den Schrumpfvorgang.
An embodiment is shown in the drawing and explained below. Show it:
  • 1 shows the device in cross section to the conveyor of the packages,
  • 2 shows the device in a side view with the shrink hood located in the starting position,
  • Fig. 3 shows the same side view with the shrink hood lowered and the package raised in the end position for the shrinking process.

Die Schrumpfhaube 1 besteht aus einem unten offenen Kasten, der innen mit nicht dargestellten Heizgeräten ausgestaltet ist und über Seile 3 an Seiltrommeln 4 heb- und senkbar aufgehängt ist. Die Seiltrommeln 4 sind auf einer im Gerüst 15 horizontal gelagerten, von einem Motor 16 angetriebenen Kelle 2 befestigt. Das zu umschrumpfende Paket 5 mit der lose darübergestülpten Schrumpf-Isolierhülle 6 wird mit einer Fördereinrichtung 7 unter den Bereich der Schrumpfhaube 1 gebracht, wobei in der Regel das Paket 5 auf einer Palette 8 steht. Zum Aufschrumpfen der Folienhülle 6 auf das Paket 5 wird die Schrumpfhaube 1 über das Paket 5 abgesenkt (Fig. 3), welches gleichzeitig von der Fördereinrichtung 7 soweit abgehoben wird, daß die untere Kante des Pakets 5 bzw. der Palette 8 frei steht und die Enden der Folienhülle 6 frei herabhängen. An der Antriebswelle 2 sind zum Heben und Senken des Pakets 5 außerhalb der Seiltrommeln 4 Kettenräder 17 befestigt, über die endlose Ketten 10 laufen. An den Ketten 10 ist ein das Paket bzw. die Palette unterfassender Hubrahmen 9 über lose Kettenräder 18 aufgehängt. Ein Glied jeder Kette 10 ist eine Feder 11, die in Ausgangsstellung, d.h. bei gehobener Haube 1 und abgesenktem Paket 5 gespannt sein kann. Ein weiteres Glied jeder endlosen Kette 10 ist eine unterhalb der Feder 11 befindliche Stange 12 mit daran verstellbar angebrachtem Anschlag 13. Die Stange 12 ist in einer als Gegenanschlag funktionierender Öse 14 geführt, welche am Rahmen 15 der Vorrichtung befestigt ist. Wird nun die Schrumpfhaube 1 mittels der Antriebswelle 2 über die Seiltrommeln 4 abgesenkt, so werden von der Welle 2 gleichzeitig die endlosen Ketten 10 in Umlauf gesetzt, und zwar so lange, bis deren Anschlag 13 auf den Gegenanschlag 14 trifft. Ab diesem Moment werden die endlosen Ketten 10 zum Flaschenzug und die Federn 11 gleichzeitig entspannt. Dadurch wird der Hubrahmen 9 mit dem Paket 5 an der Fördereinrichtung ab- und soweit angehoben, daß die Folienhülle 6 von der Unterkante des Pakets 5 bzw. der Palette frei herabhängt und eingeschrumpft werden kann. Zur Einstellung des Hubweges kann der Anschlag 13 an der Stange 12 verstellbar angebracht sein. Der Hub des Rahmens 9 wird von dem Abstand der Anschläge 13 und 14 in Ausgangsstellung bestimmt. IThe shrink hood 1 consists of a box which is open at the bottom and which is equipped on the inside with heating devices (not shown) and is suspended on cables 3 on cable drums 4 so that they can be raised and lowered. The cable drums 4 are fastened on a trowel 2 which is mounted horizontally in the frame 15 and is driven by a motor 16. The package 5 to be shrink-wrapped with the shrink-insulated sleeve 6 loosely placed over it is brought under the area of the shrink hood 1 with a conveyor device 7, the package 5 generally being on a pallet 8. To shrink the film cover 6 onto the package 5, the shrink hood 1 is lowered over the package 5 (FIG. 3), which is simultaneously lifted from the conveyor 7 to such an extent that the lower edge of the package 5 or the pallet 8 is free and the Hang the ends of the film cover 6 freely. On the drive shaft 2 for lifting and lowering the package 5 outside the cable drums 4 sprockets 17 are attached, over which endless chains 10 run. On the chains 10, the package or the pallet-encompassing lifting frame 9 is suspended via loose chain wheels 18. One link of each chain 10 is a spring 11 which is tensioned in the starting position, ie with the hood 1 raised and the package 5 lowered can be. Another link of each endless chain 10 is a rod 12 located below the spring 11 with an adjustable stop 13 attached to it. The rod 12 is guided in an eyelet 14 which functions as a counter-stop and is fastened to the frame 15 of the device. If the shrink hood 1 is now lowered by means of the drive shaft 2 via the cable drums 4, the endless chains 10 are simultaneously put into circulation by the shaft 2 until the stop 13 meets the counter-stop 14. From this moment, the endless chains 10 to the pulley and the springs 11 are relaxed at the same time. As a result, the lifting frame 9 with the package 5 is lifted off the conveyor and raised so far that the film envelope 6 hangs freely down from the lower edge of the package 5 or the pallet and can be shrunk. To adjust the stroke, the stop 13 can be adjustably attached to the rod 12. The stroke of the frame 9 is determined by the distance between the stops 13 and 14 in the starting position. I.

Claims (4)

1. Vorrichtung zum Aufschrumpfen einer Folienhülle auf ein Paket, insbesondere mit Palette, mit einer heb- und senkbaren Schrumpfhaube, die innen mit Heizgeräten zum Schrumpfen der Folienhülle ausgestaltet ist, wozu sie über ein mit der Folienhülle lose überzogenes Paket abgesenkt wird, welches mit einer Fördereinrichtung unter den Bereich der Schrumpfhaube angefördert und soweit von der Fördereinrichtung abhebbar ist, daß die Folienhülle frei über die Unterkante des Pakets bzw. der Palette herabhängt, dadurch gekennzeichnet, daß für die Schrumpfhaube (1) und das Paket (5) ein gemeinsamer Hubantrieb (2, 16) vorgesehen ist, der eine Ausgleichseinrichtung (11) enthält, die den gegenüber dem Absenkweg der Schrumpfhaube (1) kürzeren Hubweg für das Abheben des Pakets (5) bzw. der Palette (8) von der Fördereinrichtung (7) regelt.1.Device for shrinking a film cover onto a package, in particular with a pallet, with a shrink hood which can be raised and lowered and which is equipped on the inside with heaters for shrinking the film cover, for which purpose it is lowered via a package loosely covered with the film cover, which is provided with a Conveyed device is conveyed under the area of the shrink hood and can be lifted from the conveyor device to such an extent that the film envelope hangs freely over the lower edge of the package or the pallet, characterized in that for the shrink hood (1) and the package (5) a common lifting drive ( 2, 16) is provided, which contains a compensating device (11), which regulates the shorter travel path than the lowering path of the shrink hood (1) for lifting the package (5) or the pallet (8) from the conveyor device (7). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der gemeinsame Antrieb eine oben in einem Gerüst (15) waagrecht gelagerte Antriebswelle (2) aufweist, an der Seiltrommeln (4) befestigt sind, an deren Hubseilen (3) die Schrumpfhaube (1) aufgehängt ist, daß ferner an der Antriebswelle (2) außerhalb der Seiltrommeln (4) Kettenränder (17) befestigt sind, über die endlose Ketten (10) laufen, an denen über lose Kettenräder (18) ein das Paket (5) bzw. dessen Palette (8) unterfassender Hubrahmen (9) angehängt ist, und daß jede Kette (10) als Ausgleichseinrichtung ein Glied,bestehend aus einer Feder (11) und einen Anschlag (13) unterhalb der Feder (11) enthält, der beim Absenken der Schrumpfhaube (1) auf einen ortsfesten Gegenanschlag (14) trifft, daß die Ketten (10) nunmehr als Flaschenzug wirkend unter gleichzeitiger Entspannnung der Federn (11) den Hubrahmen (9) mit dem Paket (5) anheben.2. Apparatus according to claim 1, characterized in that the common drive has a drive shaft (2) horizontally mounted at the top in a frame (15) on which cable drums (4) are fastened, on the lifting cables (3) of which the shrink hood (1) is hung that further on the drive shaft (2) outside the cable drums (4) chain edges (17) are fastened, over which endless chains (10) run, on which a loose frame sprocket (5) or the pallet (8) encompassing the package (5) (9) is attached, and that each chain (10) as a compensating device contains a link consisting of a spring (11) and a stop (13) below the spring (11), which when the shrink hood (1) is lowered to a stationary one Counterstop (14) hits that the chains (10) now acting as a pulley while simultaneously releasing the springs (11) lift the lifting frame (9) with the package (5). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Anschläge (13) der Ketten (10) an als Stangen (12) ausgebildeten Kettengliedern angebracht sind und die Gegenanschläge (14) aus am Gerüst befestigten ösen (14) bestehen, in denen die Stangen (12) geführt sind.3. Apparatus according to claim 2, characterized in that the stops (13) of the chains (10) are attached to chain links designed as rods (12) and the counter-stops (14) consist of eyelets (14) attached to the frame, in which the Rods (12) are guided. 4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Anschläge (13) der Ketten (10) an den Stangen (12) höhenverstellbar angebracht sind.4. Device according to claim 3, characterized in that the stops (13) of the chains (10) on the rods (12) are height-adjustable.
EP84111758A 1983-10-07 1984-10-02 Apparatus for skrinking a wrapping foil around a parcel Expired EP0137443B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111758T ATE24159T1 (en) 1983-10-07 1984-10-02 DEVICE FOR SHRINKING A FILM SLEEV ON A PACKAGE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3336479 1983-10-07
DE3336479A DE3336479C2 (en) 1983-10-07 1983-10-07 Device for shrinking a film sleeve onto a package

Publications (3)

Publication Number Publication Date
EP0137443A2 true EP0137443A2 (en) 1985-04-17
EP0137443A3 EP0137443A3 (en) 1985-06-05
EP0137443B1 EP0137443B1 (en) 1986-12-10

Family

ID=6211218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111758A Expired EP0137443B1 (en) 1983-10-07 1984-10-02 Apparatus for skrinking a wrapping foil around a parcel

Country Status (3)

Country Link
EP (1) EP0137443B1 (en)
AT (1) ATE24159T1 (en)
DE (1) DE3336479C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164911A (en) * 1984-09-17 1986-04-03 Kureha Chemical Ind Co Ltd Apparatus for heat shrinking plastics film used for wrapping
EP1203723B1 (en) * 2000-11-03 2004-09-15 Rolf Kirschsieper Transporting and storage device
CN106944594A (en) * 2017-04-21 2017-07-14 长兴鼎峰铸造材料有限公司 A kind of rising head heat sealing mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189264A1 (en) * 1972-05-27 1974-01-25 Philips Nv
DE2303128A1 (en) * 1973-01-23 1974-08-01 Platmanufaktur Ab Packaged stacked articles lifted by fork lift truck - with lowest layer between fork arms held suspended in wrapping sheet welded to upper sheet
AU526702B2 (en) * 1978-12-29 1983-01-27 Pet Incorporated Heat conserver for bell-type ovens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189264A1 (en) * 1972-05-27 1974-01-25 Philips Nv
DE2303128A1 (en) * 1973-01-23 1974-08-01 Platmanufaktur Ab Packaged stacked articles lifted by fork lift truck - with lowest layer between fork arms held suspended in wrapping sheet welded to upper sheet
AU526702B2 (en) * 1978-12-29 1983-01-27 Pet Incorporated Heat conserver for bell-type ovens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164911A (en) * 1984-09-17 1986-04-03 Kureha Chemical Ind Co Ltd Apparatus for heat shrinking plastics film used for wrapping
GB2164911B (en) * 1984-09-17 1989-06-01 Kureha Chemical Ind Co Ltd Apparatus for heat shrinking plastics film used for wrapping
EP1203723B1 (en) * 2000-11-03 2004-09-15 Rolf Kirschsieper Transporting and storage device
CN106944594A (en) * 2017-04-21 2017-07-14 长兴鼎峰铸造材料有限公司 A kind of rising head heat sealing mechanism
CN106944594B (en) * 2017-04-21 2018-12-18 长兴鼎峰铸造材料有限公司 A kind of riser heat sealing mechanism

Also Published As

Publication number Publication date
ATE24159T1 (en) 1986-12-15
EP0137443A3 (en) 1985-06-05
EP0137443B1 (en) 1986-12-10
DE3336479C2 (en) 1986-09-04
DE3336479A1 (en) 1985-04-18

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