EP0078284B1 - Procede et dispositif d'emballage d'articles empiles au moyen d'une feuille retrecissable - Google Patents

Procede et dispositif d'emballage d'articles empiles au moyen d'une feuille retrecissable Download PDF

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Publication number
EP0078284B1
EP0078284B1 EP82901411A EP82901411A EP0078284B1 EP 0078284 B1 EP0078284 B1 EP 0078284B1 EP 82901411 A EP82901411 A EP 82901411A EP 82901411 A EP82901411 A EP 82901411A EP 0078284 B1 EP0078284 B1 EP 0078284B1
Authority
EP
European Patent Office
Prior art keywords
foil
heat
stack
shrink frame
tube
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
EP82901411A
Other languages
German (de)
English (en)
Other versions
EP0078284A1 (fr
Inventor
Magnus Rasztar
Flemming Thomsen
Kurt Lachenmeier
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.)
Signode Denmark ApS
Original Assignee
Kurt Lachenmeier AS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6131382&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0078284(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kurt Lachenmeier AS filed Critical Kurt Lachenmeier AS
Priority to AT82901411T priority Critical patent/ATE33601T1/de
Publication of EP0078284A1 publication Critical patent/EP0078284A1/fr
Application granted granted Critical
Publication of EP0078284B1 publication Critical patent/EP0078284B1/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
    • 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

  • This invention relates to a method of packing a stack of goods with a shrink foil which shrinks under the influence of heat, whereby the foil is fed from above in the form of a tube from a supply to a shrink frame, the free end of the tube is secured to the shrink frame and spead open, the tube is welded together transversely and cut at a distance from the free end adjusted to the height of the stack to provide a sealed length of the tube and to separate the sealed length of the tube from the supply respectively, the sealed length of the tube being carried over the stack by the downwardly moving shrink frame and whereby the heat shrinking takes place during the subsequent upward movement of the shrink frame and an apparatus for performing the said method.
  • the method of this invention is characterized in that during the heat shrinking the foil which is intended for the next following stack of goods is shielded against the heat.
  • the apparatus of this invention for performing the above mentioned method comprises a vertically movable shrink frame provided with spreading and gripping means, the apparatus including the shrink frame being adapted to heat the foil surrounding a stack, means for feeding a tubular foil from a supply down towards the shrink frame from above, welding and cutting-off mechanism being mounted above the shrink frame and is characterized in that there is provided a heat-shielding device between the foil which is intended for the next following stack of goods and the shrink frame.
  • the heat-shielding device is provided by the welding mechanism which comprises a pair of welding jaws which are arranged to close together during the shrinking.
  • the welding mechanism which comprises a pair of welding jaws which are arranged to close together during the shrinking.
  • a further development of this embodiment is characterized in that the heat-shielding device is provided by plates or screens which are placed above the welding mechanism, thus making a feeding of the foil possible even during the shrinking process, so that a new length of foil is already hanging ready when the shrinking process is concluded.
  • FIG. 1 there is shown an apparatus consisting of a horizontal shrink frame 1 which is vertically movable on a column 2, said frame being designed to pack a box-shaped stack 3 with shrink foil.
  • the foil is in the form of a tube and comes from a supply roll 4 at the back of the apparatus.
  • the foil or tube is fed from here via rollers or slide rails up over the apparatus and out into a console 5 which ends above the shrink frame 1.
  • the console 5 has built-in mechanisms forthe cutting-off and the wefding-together of the tube.
  • the console 5 also contains a pair or rollers for the feeding of the foil.
  • the inner edges of the shrink frame 1 are equipped with heating elements. With the present invention it can be' expedient for these elements to be gas burners.
  • the apparatus has a control panel 6 with a programme control arrangement.
  • the apparatus is fully automatic.
  • the apparatus is equipped with a pair of suction boxes 7 and 8 mounted on the bottom of the shrink frame 1, and which on rails are controlled for synchronous movement towards each other and away from each other.
  • suction boxes 7 and 8 On the suction boxes 7 and 8 are mounted elements which lie below the suction surfaces, but which extend towards the corresponding element on the other suction box. However, these elements are offset from each other in such a way that the suction surfaces of the suction boxes can still lie almost or completely up against each other.
  • One or more suction blowers 9, 10 are mounted on each of the suction boxes 7 and 8, as shown in fig. 2 in association with the suction box 7.
  • the suction side of these blowers is naturally connected to the suction boxes, while the pressure side is connected to the drawer-like elements 11 and 12 which extend under each suction box and can be pushed in under this, or be in a half-drawn- out position in a direction towards each other or in towards the middle of the shrink frame 1. This results in the provision of upwardly-inclined nozzle slots.
  • the drawer-like elements 11 and 12 are in the pushed-in position, which is the case when the suction boxes 7 and 8 are fed in against each other, the discharge of air from the suction blowers is effected in another manner.
  • drawer-like elements can also be mounted on the suction boxes in a fixed way.
  • a first set of small grippers 13, 14, 15 and 16 For the sake of clarity, these grippers are not shown in the foregoing drawings.
  • These grippers have the double right-angled configuration as shown in fig. 7.
  • Fig. 6 also shows a tube 17 of shrink foil which in its folded- together state has a double fold in each side, i.e., an inwardly-bent edge and two outwardly-turning edges in each side.
  • the suction boxes 7 and 8 have a second set of large grippers 18, 19, 20 and 21 in the form of pivotable stays capable of swinging between a horizontal and a vertical position around horizontal axes.
  • the stays 19 and 20 are in the horizontal position, in that the stays run at right angles to the plane of the paper.
  • a second horizontal frame 22 supported underneath by a column 23.
  • the column 23 can have a built-in telescopic part, thus enabling the distance of the frame 22 from the shrink frame 1 to be varied.
  • Fig. 5 shows a cutting-off and welding mechanism which is built into the outer end of the console 5.
  • a pair of rollers 24 and 25 feed the foil 26 to a slot between two pairs of holding jaws 27, 28, 29 and 30, of which the last-mentioned and lower pair also serve as welding jaws.
  • a knife 31 is fastened to an endless chain 32, 33 and is driven forwards and backwards by a not-shown motor in the suggested supports. The knife can also be driven in the same direction the whole way around.
  • the apparatus functions in the following manner:
  • the shrink frame will be in its upper position, e.g., the position shown in the drawings.
  • the feeding of the foil now takes place by means of the pair of rollers 24 and 25 until the lower edge of the foil is level with the lower edges of the suction boxes 7 and 8.
  • the suction boxes 7 and 8 are, of course, moved into a position away from each other, so that the foil can pass freely.
  • the length of the foil hanging downwards is naturally adjusted in accordance with the height of the stack to be packed. This length can be measured off by means of the programme control arrangement, but it can also be effected automatically with sensors already known within the art.
  • the suction boxes 7 and 8 are fed in towards each other so that they surround the lower edge of the foil.
  • the suction blowers 9, 10 and others are then started, and the suction boxes 7 and 8 are withdrawn a small distance away from each other and stopped.
  • This position is shown in figs. 3 and 6.
  • the small grippers 13, 14, 15 and 16 are activated and swing in the direction of the arrows as shown in fig. 6, whereby they secure the four outwardly extending edges of the foil cross section externally.
  • the suction boxes 7 and 8 are then made to continue their movement until the foil cross section is opened so much that the second set of grippers 18, 19, 20 and 21 can safely swing up inside the foil.
  • a stream of air is thus blown up into the foil from two sides, and the foil can now be released by the jaws 29 and 30 at the top, after the knife in the meantime has been activated.
  • the suction boxes 7 and 8 end in the position shown in fig 4, where the frame 22 is of significance, in that the size of the frame 22 is of such dimensions that it can prevent the upper part of the now formed foil hood from swinging from side to side or flapping as a result of turbulence in the air.
  • the frame 22 can be adjustable in height if stacks of varying heights are being worked with.
  • the foil hood can be drawn down over the stack 3 without being damaged by the upper corners or edges of the stack. This is carried out by feeding the frames and the parts mounted thereon down the column 2.
  • the suction boxes are moved so much in towards each other that the grippers 18, 19, 20 and 21 relieve the foil to such an extent that the grippers can swing down into the horizontal position free of the foil, after which the shrinking can begin during the upwards movement of the shrink frame.
  • the jaws 27, 28 and 29, 30 can have been moved towards each other into the closed position, thus shielding-off the foil which must not be shrunk prematurely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)
  • Closing Of Containers (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Claims (6)

1. Procédé d'emballage d'un empilement (3) d'articles au moyen d'une feuille rétrécissable qui se rétrécit sous l'influence de la chaleur, la feuille étant amenée par le dessus sous forme d'un tube à partir d'une réserve (4) et vers un cadre de rétrécissement, l'extrémité libre du tube étant fixée au cadre de rétrécissement (1), déployée et ouverte, le tube étant soudé transversalement sur lui-même et découpé à une distance de l'extrémité libre qui est ajustée sur la hauteur de l'empilement (3) pour déterminer une hauteur scellée de tube et pour séparer la longueur scellée de tube de la réserve (4), respectivement, la longueur scellée du tube étant transportée au-dessus de l'empilement (3) par le cadre de rétrécissement qui se déplace vers le bas et le rétrécissement par la chaleur ayant lieu pendant le mouvement ascendant subséquent du cadre de rétrécissement (1), caractérisé en ce que pendant le rétrécissement à la chaleur, la feuille qui est prévue pour l'empilement d'articles (3) suivant est protégée de la chaleur.
2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, comprenant un cadre de rétrécissement (1) mobile verticalement et muni de moyens d'écartement et de saisie (13-16; 18-21), le dipossitif comprenant le cadre de rétrécissement étant adapté à chauffer la feuille entourant un empilement (3), des moyens pour faire avancer une feuille tubulaire à partir d'une réserve (4) vers le bas en direction du cadre de rétrécissement qu'elle rencontre par la haut, un mécanisme de soudage et de découpe (29, 30, 31) étant monté au-dessus du cadre de rétrécissement, caractérisé en ce qu'il est prévu un dispositif de protection contre la chaleur entre la feuille destinée à l'empilement d'articles suivant et le cadre de rétrécissement (1).
3. Dispositif selon la revendication 2, caractérisé en ce que le dispositif de protection contre la chaleur est constitué par le mécanisme de soudage qui comprend une paire de mâchoires de soudage (29, 30) montées de façon à se refermer pendant le rétrécissement.
4. Dispositif selon la revendication 2, caractérisé en ce que le dispositif de protection contre la chaleur est constitué par des plaques ou des écrans qui sont placés au-dessus du mécanisme de soudage (29, 30).
5. Dispositif selon la revendication 2, caractérisé en ce que le dispositif de protection contre la chaleur est constitué par des plaques ou des écrans qui sont placés au-dessous du mécanisme de soudage (29, 30).
6. Dispositif selon l'une quelconque des revendication 3 à 5, caractérisé en ce que sont prévus un ou plusieurs ventilateurs de refroidissement qui sont aménagés pour souffler de l'air dans le ou les espaces par lesquels la feuille est avancée, et notamment entre les plaques ou les écrans.
EP82901411A 1981-05-04 1982-04-30 Procede et dispositif d'emballage d'articles empiles au moyen d'une feuille retrecissable Expired EP0078284B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82901411T ATE33601T1 (de) 1981-05-04 1982-04-30 Verfahren und vorrichtung zur verpackung gestapelter gueter mit schrumpffolie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3117531 1981-05-04
DE19813117531 DE3117531A1 (de) 1981-05-04 1981-05-04 Verfahren und vorrichtung zum verpacken von stapeln u. dgl. mit einer heissschrumpffolie

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP87110175A Division EP0252527A3 (fr) 1981-05-04 1982-04-30 Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable
EP87110175A Division-Into EP0252527A3 (fr) 1981-05-04 1982-04-30 Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable

Publications (2)

Publication Number Publication Date
EP0078284A1 EP0078284A1 (fr) 1983-05-11
EP0078284B1 true EP0078284B1 (fr) 1988-04-20

Family

ID=6131382

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82901411A Expired EP0078284B1 (fr) 1981-05-04 1982-04-30 Procede et dispositif d'emballage d'articles empiles au moyen d'une feuille retrecissable
EP87110175A Withdrawn EP0252527A3 (fr) 1981-05-04 1982-04-30 Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP87110175A Withdrawn EP0252527A3 (fr) 1981-05-04 1982-04-30 Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable

Country Status (6)

Country Link
EP (2) EP0078284B1 (fr)
JP (1) JPS58500992A (fr)
AT (1) ATE33601T1 (fr)
DE (4) DE3117531A1 (fr)
DK (1) DK161880C (fr)
WO (1) WO1982003833A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2564033B1 (fr) * 1984-05-10 1987-01-02 Thimon Ste Nouvelle Exploit Procede pour chauffer - en vue de la retracter - une gaine en matiere plastique thermoretractable recouvrant une charge et machine pour la mise en oeuvre du procede
DE8513892U1 (de) * 1985-05-10 1985-09-05 MSK - Verpackungs-Systeme GmbH, 4190 Kleve Vorrichtung zum Überziehen und Einschrumpfen von Gutstapeln mit Schrumpfhauben
DE3621297A1 (de) * 1986-06-25 1988-01-14 Moellers Maschf Gmbh Vorrichtung zum ueberziehen und anschrumpfen einer schrumpffolienhaube ueber bzw. an einen stapel.
DE3639472A1 (de) * 1986-11-18 1988-05-19 Moellers Maschf Gmbh Vorrichtung zur herstellung einer vollstaendig mit schrumpffolie umhuellten verpackungseinheit
DE3873583D1 (de) * 1987-03-11 1992-09-17 Lachenmeier Kurt Aps Verfahren und vorrichtung zum verpacken von gegenstaenden mit einer bahnfoermigen kunststoffolie.
DE3714811C2 (de) * 1987-05-04 1999-04-29 Kurt Lachenmeier A S Kl Indust Vorrichtung zum Überziehen und Aufschrumpfen einer Kunststoffolie auf zu verpackendes Gut
DE3707877A1 (de) * 1987-03-11 1988-09-22 Lachenmeier Kurt Aps Verfahren und vorrichtung zum verpacken von gegenstaenden mit einer bahnfoermigen kunststoffolie
FR2644136B1 (fr) * 1989-03-08 1991-05-03 Balgros Jacques Dispositif de retraction a air chaud
DE4038416A1 (de) * 1990-12-01 1992-06-04 Nuetro Maschinen & Anlagen Vorrichtung zum ueberziehen von verpackungsgut mit einer schlauchhaube
DE4201303A1 (de) * 1992-01-20 1993-07-22 Carl Hofmann Ringlaeufer Und R Verfahren und vorrichtung zum portionsweisen verpacken von auf einem entfernbaren magazindorn gestapelten kleinteilen
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
DE9310218U1 (de) * 1993-07-09 1993-09-02 Msk Verpackung Syst Gmbh Vorrichtung zum Schrumpfen einer über einen Gutstapel gezogenen Schrumpfhaube
IT1313378B1 (it) * 1999-09-23 2002-07-23 Sestese Off Mec Apparecchiatura incappucciatrice combinata
DE102004001301B4 (de) * 2004-01-08 2007-03-22 Joachim Braun Verpackungsvorrichtung zum Verpacken von Paletten
DE102005062609A1 (de) 2005-12-23 2007-07-05 Lachenmeier A/S Haubenverpackungsanlage mit Einrichtung zur Herstellung von Seitenfalten
ATE455702T1 (de) * 2006-09-15 2010-02-15 Lachenmeier As Verpackungsvorrichtung, rastmechanismus für eine verpackungsvorrichtung und verfahren zum betreiben derselben
IT1394521B1 (it) * 2008-12-19 2012-07-05 Marpak Oms Group S R L Apparecchiatura incappucciatrice per imballaggio, provvista di forno di termoretrazione e mezzi di protezione dal calore.
CN103204267A (zh) * 2013-03-04 2013-07-17 大连工业大学 可调式塑料薄膜撑袋器
DE102019216346A1 (de) * 2019-10-23 2021-04-29 Signode Industrial Group Llc Verfahren und Vorrichtung zum Verpacken eines Stapels von Gütern in einem schlauchförmigen Stretchfilm
DE102020201377A1 (de) 2020-02-05 2021-08-05 Julian Gockel-Böhner Vorrichtung zum Beziehen eines brettförmigen Körpers mit einem Endlosband

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761164A1 (de) * 1968-02-07 1970-09-24 Gustavsson Olov Erland Verfahren und Vorrichtung zum Aufschrumpfen einer Abdeckung aus waermeschrumpfender Kunststoffolie auf eine Ladeeinheit
DE2146464A1 (de) * 1970-09-18 1972-03-23 Societe dApplicaüons Thermiques, Aix les Bains (Frankreich) Vorrichtung zum Aufbringen einer Hülle auf eine zu verpackende Ladung
DE2146446A1 (de) * 1970-09-16 1972-05-04 Nippon Industry Machine Co Ltd., Kyoto (Japan) Verfahren und Einrichtung zum Ver packen von Gegenstanden
DE2706955A1 (de) * 1977-02-18 1978-08-24 Keller Gmbh & Co Kg Einrichtung zum umhuellen von stapeln, insbesondere von ziegelstapeln

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Publication number Priority date Publication date Assignee Title
CH528405A (de) * 1968-07-18 1972-09-30 Alkor Oerlikon Plastic Gmbh Vorrichtung zum Überziehen eines Schlauches über auf einer Unterlage gestapelte Gegenstände
DE2352277A1 (de) * 1972-10-18 1974-05-22 Ahrendt & Birkendahl Ohg Verfahren und vorrichtung zum einschrumpfen von guetern in kunststoffolie
US4050219A (en) * 1976-02-19 1977-09-27 Comptex, Inc. Bagging machine
DE2804941A1 (de) * 1978-02-06 1979-08-16 Msk Verpackung Syst Gmbh Schrumpfvorrichtung zum einschrumpfen von stueckguetern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761164A1 (de) * 1968-02-07 1970-09-24 Gustavsson Olov Erland Verfahren und Vorrichtung zum Aufschrumpfen einer Abdeckung aus waermeschrumpfender Kunststoffolie auf eine Ladeeinheit
DE2146446A1 (de) * 1970-09-16 1972-05-04 Nippon Industry Machine Co Ltd., Kyoto (Japan) Verfahren und Einrichtung zum Ver packen von Gegenstanden
DE2146464A1 (de) * 1970-09-18 1972-03-23 Societe dApplicaüons Thermiques, Aix les Bains (Frankreich) Vorrichtung zum Aufbringen einer Hülle auf eine zu verpackende Ladung
DE2706955A1 (de) * 1977-02-18 1978-08-24 Keller Gmbh & Co Kg Einrichtung zum umhuellen von stapeln, insbesondere von ziegelstapeln

Also Published As

Publication number Publication date
WO1982003833A1 (fr) 1982-11-11
EP0252527A2 (fr) 1988-01-13
ATE33601T1 (de) 1988-05-15
DE252527T1 (de) 1988-05-19
DK161880C (da) 1992-02-03
DK161880B (da) 1991-08-26
DE3278353D1 (en) 1988-05-26
EP0078284A1 (fr) 1983-05-11
DE3242677T1 (de) 1984-10-31
DK546582A (da) 1982-12-09
EP0252527A3 (fr) 1988-09-14
JPS58500992A (ja) 1983-06-23
DE3117531A1 (de) 1982-11-18
DE3242677C2 (fr) 1992-09-10

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