EP0642443B1 - Procede de suremballage et dispositif pour la mise en oeuvre dudit procede - Google Patents

Procede de suremballage et dispositif pour la mise en oeuvre dudit procede Download PDF

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Publication number
EP0642443B1
EP0642443B1 EP94911220A EP94911220A EP0642443B1 EP 0642443 B1 EP0642443 B1 EP 0642443B1 EP 94911220 A EP94911220 A EP 94911220A EP 94911220 A EP94911220 A EP 94911220A EP 0642443 B1 EP0642443 B1 EP 0642443B1
Authority
EP
European Patent Office
Prior art keywords
pallet
fact
wrapping
over
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.)
Expired - Lifetime
Application number
EP94911220A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0642443A1 (fr
Inventor
Jean-Paul Martin-Cocher
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.)
Newtec International SA
Original Assignee
Newtec International SA
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 Newtec International SA filed Critical Newtec International SA
Publication of EP0642443A1 publication Critical patent/EP0642443A1/fr
Application granted granted Critical
Publication of EP0642443B1 publication Critical patent/EP0642443B1/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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised 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
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/16—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser travelling around the article along a non-rotating ring

Definitions

  • the present invention relates mainly to an overpacking method and to a device for implementing said method.
  • DE-A-4,103,384 describes an overwrapping machine using stretched covers comprising means for hooking the lower end of the cover onto the lower face of the pallet. This fixing is carried out successively or simultaneously on the various sides of the pallet.
  • the preamble of claim 1 is based on this state of the art.
  • Palletizing loads is becoming increasingly important as it reduces the costs of handling, storing and transporting goods.
  • the interest of palletization only remains if the load reaches its final stage, that is to say depalletization in the state it was in during palletization.
  • a plastic film overwrap is usually used to ensure cohesion, maintenance and / or protection of palletized loads, while cohesion between the load and the pallet is ensured, for a standardized pallet, by a film return under the lower floor of the pallet.
  • the pallet thus protected will be handled by devices such as forklifts or pallet trucks whose forks will penetrate the entrances of the pallet by perforating, or worse by tearing, the return of plastic film. This results in a weakening or destruction of the connection between the pallet and the palletized load.
  • the hanging of the overpack on the pallet can be compromised by the friction of the return of the film under the lower floor of the pallet on the ground, the unloading docks or the platforms of the trucks.
  • the main object of the invention is a method of overpacking a palletized load comprising a step of depositing one or more plastic films around the palletized load which cover the palletized load and obstruct the entrances of the pallet, characterized in that that it comprises a step consisting of releasing permanent passages for the forks from handling machines in the film blocking the entrances to the pallet.
  • the invention also relates to such a method characterized in that there are permanent passages in the film obstructing the entrances of the pallet opposite on two opposite sides on the pallet.
  • the invention also relates to such a method, characterized in that the clearance of the permanent passages at the level of the entrances of the pallet consists in pleating the film obstructing the entries of the pallet and in joining, in particular in welding, the folds obtained.
  • the invention also relates to such a method, characterized in that the overpack is a shrinkable cover, and in that step b) is carried out by heating simultaneously ensuring the welding of the fastening strip with the cover and the retraction of said cover.
  • the invention also relates to such a method characterized in that the pallet carrying the load to be overwrapped is a standard pallet comprising a substantially identical upper plate and lower plate connected by pots substantially forming rectangular parallelepipeds.
  • the invention also relates to a device for overpacking palletized loads, characterized in that it comprises means for distributing a film and for forming around the pallet a fastening strip capable of being secured to an overpack, in particular with a cover, and in that it comprises means for freeing permanent passages for forks from handling machines in the fastening strip at the level of at least certain entries of the pallet.
  • the invention also relates to such a device, characterized in that the means for clearing the passages for forks of handling equipment at at least some entries of the pallet comprise pushing elements for pleating the strip of attachment and means for permanently connecting the folds and, in particular, welders.
  • the invention also relates to such a device, characterized in that it comprises means for depositing an overpack, in particular a cover, and means for securing the fastening strip and the overpack.
  • the invention also relates to such a device characterized in that the overpack, in particular the cover, is made of shrinkable plastic film, and in that it comprises heating means for ensuring the retraction of the overpack.
  • the invention also relates to such a device characterized in that it comprises a ring capable of surrounding the pallet, and in that the means for dispensing a thin film capable of constituting the fastening strip are mounted to rotate around the pallet on the ring.
  • the invention also relates to such a device, characterized in that the means for distributing the plastic film capable of forming the fastening strip comprise a stretching roller of small width compared to the width of the plastic film to stretch the central part of this film.
  • a palletized load 1 of known type comprising a pallet 2 carrying a load 3 covered with a cover 4 of plastic film shrunk during a heating step.
  • the cover 4 includes returns 5 under the lower floor 6 of the pallet 2.
  • the returns 5 ensure good hold of the load 3 at the start and good cohesion of the palletized load.
  • the friction of the palletized load 1 on the ground, the loading docks or the platforms of the trucks destroys the returns 5, which can lead to the dislocation of the palletized load 1.
  • FIG. 3 one can see a palletized load 10 according to the present invention comprising a fastening strip 11 of the overpack 12 providing on two or four sides passages 13 in the inlets 8 of the pallet 2.
  • the fastening strip 11 is secured to the overpack 12, for example, by welding or by gluing.
  • the passages 13 allow the forks 7 to penetrate the inlets of the pallet without perforation or tearing of the overpack 12 or of the fastening strip 11.
  • a fastening strip 11 separate from the overwrap 12 leaves great freedom in the choice of plastic films to be used for these two elements.
  • the device 14 comprises a programmable automaton 15 and a frame 16 on which is mounted a frame 17 ensuring the lifting of a ring 18 comprising a device 19 for distributing a plastic film forming the fastening strip 11.
  • the device 19 comprises, for example, a reel 20 of the stretchable plastic film forming the fastening strip 11 and two rollers 21, 22, advantageously motorized, ensuring the stretching of the film.
  • Motor means not shown ensure on command the programmable automaton 15, the movement of the device 19 for distributing the film on the ring 18 as well as the vertical translation of the frame 17 allowing its erasure, advantageously in height, during the feeding or evacuation of a palletized load to be overwrapped.
  • the device 14 comprises, at the level of the pallet 2, means 23 for temporarily fixing the end of the film forming the fastening strip 11 of the overwrap comprising, for example, a clamp as well as means 24 for releasing the fastening strip 11 at the entries 8 of the pallet 2 by forming in the strip 11 the passages 13 of the forks 7.
  • Means 24 comprise, for example, two stops arranged on two opposite sides, as illustrated, or on the four sides of the pallet 2.
  • each stop of the means 24 comprises a support element 25 advantageously driven upwards by an actuator (not shown) for pleating the films and providing the passages 13 as well as a welder 26 to weld the folds together and permanently form said passages 13.
  • certain stops are retractable to allow the supply and / or evacuation of pallets, for example using a conveyor 27 with motorized rollers 28.
  • the means 24 for releasing the fastening strip 11 at the entries 8 of the pallet 2 comprise only four stops arranged on the two opposite sides of the conveyor 27 which retract only to disengage from the attachment strip 11.
  • the device 14 according to the invention comprises means for raising the pallet 2 to allow the passage of the hanging strip 11 or cover 12 under the lower floor 6 of the pallet 2.
  • the device 14 advantageously comprises means for depositing an overpack 12 adapted to the palletized load.
  • the device 14 comprises means 29 for depositing retractable covers comprising a coil 30 of a sheath made of shrink film, means for cutting and welding the upper part of the cover (not shown), guide means 31 during removal of the cover on the palletized load, for example a frame, and heating means 32 to ensure the retraction of the cover.
  • the heating means 32 comprise, for example, an oven, a hot air frame, a direct flame frame, an electric infrared frame or a gas infrared frame.
  • the end of the film forming the fastening strip 11 is fixed manually or by a manipulator controlled by the programmable automaton 15 (not shown) in the means 23.
  • the means 19 for distributing the film forming the fastening strip 11 carry out at least one complete revolution depositing a stretched strip around the pallet 2 and the stops of the means 24. Once the fastening strip 11 formed, the film is cut and the tail of the film is welded on the first turn (s).
  • the support elements 25 locally fold the fastening strip 11 by releasing the passages 13.
  • the welders 26 weld between the folds and maintain the passages 13 after disengagement of the stops of the means 24.
  • overpack 12 for example a shrinkable cover on the palletized load.
  • the overpack 12 is fixed to the fastening strip 11, advantageously by welding caused by the heating necessary for the shrinkage of the cover.
  • the overpack is welded, for example, by a welding arm 33 or glued during a separate step of the method according to the present invention.
  • the device and method according to the invention can be adapted to special pallets.
  • FIGS. 9 and 10 two examples of embodiment of the device 19 can be seen which are particularly suitable for pallets 34 with an overhanging upper plate 35.
  • the film forming the fastening strip 11 is advantageously deposited pre-stretched on the edges. of the overflowing plate 35.
  • the device 19 comprises a pre-stretching roller 36 of small width relative to the width of the film, this roller being advantageously motorized by a motor 37, and bearing substantially in the middle of the film. This ensures greater drawing in the middle of the width in line with the plate 35.
  • This device for a given quantity and quality of films, makes it possible to better wrap the overflowing plate 35 while minimizing the risks of tearing of the movie.
  • a pallet 10 overwrapped by the method according to the present invention comprises on at least one side, preferably on two opposite sides or on all four sides, passages 13 giving the forks 7 access to the inlets 8 of the pallet 2 without damaging the overpack 12
  • the friction of the palletized load 10 on the ground, the unloading docks or the truck trays does not deteriorate the attachment of the overpack to the pallet.
  • the present invention applies in particular to the overpacking of palletized loads.
  • the present invention mainly applies to the overpacking of palletized loads on a standard pallet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Packages (AREA)
  • Pallets (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP94911220A 1993-03-26 1994-03-25 Procede de suremballage et dispositif pour la mise en oeuvre dudit procede Expired - Lifetime EP0642443B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9303512 1993-03-26
FR9303512A FR2703024B1 (fr) 1993-03-26 1993-03-26 Procede de suremballage et dispositif pour la mise en oeuvre dudit procede .
PCT/FR1994/000333 WO1994022719A1 (fr) 1993-03-26 1994-03-25 Procede de suremballage et dispositif pour la mise en ×uvre dudit procede

Publications (2)

Publication Number Publication Date
EP0642443A1 EP0642443A1 (fr) 1995-03-15
EP0642443B1 true EP0642443B1 (fr) 1997-05-14

Family

ID=9445385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94911220A Expired - Lifetime EP0642443B1 (fr) 1993-03-26 1994-03-25 Procede de suremballage et dispositif pour la mise en oeuvre dudit procede

Country Status (15)

Country Link
EP (1) EP0642443B1 (es)
AT (1) ATE152986T1 (es)
AU (1) AU6379694A (es)
CA (1) CA2136452A1 (es)
CZ (1) CZ291094A3 (es)
DE (1) DE69403162T2 (es)
DK (1) DK0642443T3 (es)
ES (1) ES2101523T3 (es)
FI (1) FI945587A (es)
FR (1) FR2703024B1 (es)
HU (1) HU219109B (es)
NO (1) NO944532D0 (es)
PL (1) PL175179B1 (es)
SK (1) SK280417B6 (es)
WO (1) WO1994022719A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102665A1 (en) * 2001-06-20 2002-12-27 Bki Holding Corporation Packaging a strip of material in side by side stacks spliced end to end
ITMI20112408A1 (it) * 2011-12-28 2013-06-29 Marpak Oms Group S R L Apparecchiatura semplificata per l'imballaggio di carichi con pellicola termoretraibile
FR3069232B1 (fr) 2017-07-24 2021-10-29 Thimon Procede de houssage et thermoscellage et dispositif de houssage et thermoscellage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020985A1 (de) * 1970-04-29 1971-12-16 Heraeus Gmbh W C Verfahren zum Herstellen von mit einer Kunststoffolie umhuellten Gutstapeln
US3853218A (en) * 1973-01-30 1974-12-10 Gilbert G Load of goods comprising a plurality of layers, and a method and a machine for producing said load
SE385287B (sv) * 1973-10-17 1976-06-21 Platmanufaktur Ab I plastfilm forpackad godsstapel samt forfarande for forpackning av stapeln
DE3344940A1 (de) * 1983-12-13 1985-06-20 Helmut 8561 Happurg Schenke Verfahren zum umwickeln von gestapeltem gut
IT1210729B (it) * 1987-05-13 1989-09-20 Aec Automazione Controlli Procedimento di imballaggio per realizzare una confezione di articoli sovrapponibili la quale si atta per essere afferrata e trasportata da un sollevatore a forca
DE9001319U1 (de) * 1990-02-06 1990-04-12 MSK-Verpackungs-Systeme GmbH, 47533 Kleve Vorrichtung zum Überziehen von Stretchfolienhauben über einen Gutstapel

Also Published As

Publication number Publication date
SK280417B6 (sk) 2000-02-14
NO944532L (no) 1994-11-25
CZ291094A3 (en) 1996-02-14
PL175179B1 (pl) 1998-11-30
FR2703024A1 (fr) 1994-09-30
FI945587A0 (fi) 1994-11-28
DK0642443T3 (da) 1997-11-03
EP0642443A1 (fr) 1995-03-15
AU6379694A (en) 1994-10-24
HU9403336D0 (en) 1995-02-28
ES2101523T3 (es) 1997-07-01
HUT69424A (en) 1995-09-28
NO944532D0 (no) 1994-11-25
FI945587A (fi) 1994-11-28
DE69403162T2 (de) 1997-09-25
SK142094A3 (en) 1995-05-10
HU219109B (hu) 2001-02-28
PL306420A1 (en) 1995-04-03
WO1994022719A1 (fr) 1994-10-13
ATE152986T1 (de) 1997-05-15
FR2703024B1 (fr) 1995-06-16
CA2136452A1 (en) 1994-10-13
DE69403162D1 (de) 1997-06-19

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