EP0461667B1 - Procédé et dispositif pour envelopper des marchandises avec un film étirable - Google Patents

Procédé et dispositif pour envelopper des marchandises avec un film étirable Download PDF

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Publication number
EP0461667B1
EP0461667B1 EP19910109763 EP91109763A EP0461667B1 EP 0461667 B1 EP0461667 B1 EP 0461667B1 EP 19910109763 EP19910109763 EP 19910109763 EP 91109763 A EP91109763 A EP 91109763A EP 0461667 B1 EP0461667 B1 EP 0461667B1
Authority
EP
European Patent Office
Prior art keywords
film
pallet
load
frame
over
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.)
Revoked
Application number
EP19910109763
Other languages
German (de)
English (en)
Other versions
EP0461667A1 (fr
Inventor
Hans Dipl.-Ing.; Dipl.-Ing. Lauhoff (Fh)
Werner Uthoff
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.)
Beumer Maschinenfabrik GmbH and Co KG
Original Assignee
Beumer Maschinenfabrik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6408455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0461667(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Beumer Maschinenfabrik GmbH and Co KG filed Critical Beumer Maschinenfabrik GmbH and Co KG
Priority to EP94110621A priority Critical patent/EP0633186B1/fr
Publication of EP0461667A1 publication Critical patent/EP0461667A1/fr
Application granted granted Critical
Publication of EP0461667B1 publication Critical patent/EP0461667B1/fr
Anticipated expiration legal-status Critical
Revoked 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

Definitions

  • the invention relates to a method for wrapping piece goods with a tubular or hood-shaped stretch film according to the preamble of claim 1 and a device suitable for this according to the preamble of claim 3.
  • DE 40 19 041 C1 has proposed a method and a device for wrapping piece goods with stretch film, by means of which the lower edge section of the wrapping is to be reinforced compared to the rest of the wrapping during the wrapping process.
  • the lower edge section of the stretch film hood, in the case of essentially already completely wrapped article side surfaces or the wrapped pallet, before reaching under the piece goods or the pallet, forming a double-layered film edge section extending beyond the underside of the piece goods or the pallet from a first lowered position, the under the general cargo or in the area of the pallet, raised again and only then released.
  • the reversible drivable reefing rollers can optionally serve as an alternative, in the second lowered position, again with the film in To be brought into engagement in order to bring about the desired folding effect in order to strengthen the lower edge of the film.
  • they have no influence on the above problem.
  • the present invention is based on the object of specifying a method by means of which the desired understretch can be carried out simply and reliably under a wide variety of structural conditions.
  • the generic device is to be simplified considerably.
  • the invention provides that the pulling speed is reduced in the pulling final phase. This ensures that the film has sufficient time to contact the stack or the pallet with appropriate contraction and to securely grasp the latter with the understretch.
  • the film can be moved inward relative to its covering contour below the pressing area or also in the pressing area, for example when using a generic device, in that the bow-like frame sections of the lifting frame are moved inwards, as shown below is explained further.
  • the film is correspondingly relaxed in its lower edge area, accordingly fits well in the understretch area and can then no longer be pulled up over the underside of the pallet or the piece goods.
  • a first operating speed relatively high normal pulling speed
  • the reefing rollers are used as the pressing device.
  • the lifting frame can be provided with line openings which open in the area of its engagement surface with the film, the line openings being pressurized in the pressing phase in order to hold the film on the lifting frame in the final pull-over phase.
  • FIG. 1 shows a block-shaped piece goods stack, designated as a whole by 1, which consists of several layers of piece goods parts which are intended to be wrapped with a stretch film hood 2 in order to form a loading unit.
  • the stretch film hood 2 is formed from a gusseted tube 3, which is fed to the device according to the arrows 8 from a gusseted tube supply, not shown, the free end of the gusseted tube 3 according to FIG 3) has been included.
  • the gusseted tube 3 is welded at a distance from its free end by means of a welding device 4, which consists essentially of two welding strips, so that a transverse seam 5 is formed, and above the transverse seam 5 by means of a not shown Separating device separated to form a stretch film hood 2, the side surfaces of which, in the state shown in FIG. 2, have already been substantially raised onto the lifting frame 9 (by means of a reefing device).
  • a welding device 4 which consists essentially of two welding strips, so that a transverse seam 5 is formed, and above the transverse seam 5 by means of a not shown Separating device separated to form a stretch film hood 2, the side surfaces of which, in the state shown in FIG. 2, have already been substantially raised onto the lifting frame 9 (by means of a reefing device).
  • FIG. 2 From the state shown in FIG. 2, the four frame-like (lifting) frame sections 9 'essentially forming the lifting frame and assigned to the corner regions of the piece goods stack 1 are moved apart in the direction of arrows 6 for the purpose of transverse stretching of the stretch film hood 2. After that 4 is stretched across the piece goods stack 1 by means of the lifting frame 9, which at the same time forms a reefing frame, FIG. 4 showing an intermediate state in which the piece goods stack 1 is already half-wrapped.
  • the lifting frame 9 which can be driven by means of a drive (not shown), initially moves downward at a normal first operating speed, which is as high as possible, taking into account the strength or elasticity properties of the film material used to be able to achieve a correspondingly high throughput of the machine, and finally in one position, as can be seen in FIG. 7, wherein only a single bow-like frame section 9 'can be seen in FIG. 7, but the other bow-like frame sections 9' are designed accordingly and are at the same level.
  • the lowering speed of the lifting frame 9 is considerably reduced, so that the pulling-on process in the pulling-over end phase is carried out at a reduced second operating speed, with the result that the stretch film is given the possibility of being in the desired position To put on the stack of goods or the pallet and does not pull up.
  • the lifting frame 9 consists of four substantially C-shaped bracket-like frame sections 9 ', each of which is provided with a plurality of through-bores 13, which are connected to a vacuum source, and in each case engages with films during operation located section of the outside of the relevant lifting frame section 9 'open.
  • the vacuum source indicated schematically in FIG. 6 is designated by 14.
  • Each bow-shaped frame section 9 ' is supported by a support 17 (see FIGS. 5 and 6) formed by a curved, conical sheet metal, the supports 17 each having a recess 18 in the central region. Otherwise, the through bores 13 connected to the vacuum source 14 are connected to a control device 16 (see FIG. 6), by means of which the vacuum can be controlled.
  • the bracket-like frame sections 9 'of the lifting frame 9 are moved in the illustrated embodiment during the pulling process to slightly below the top 10' of the pallet 10, with Fig. 7 showing that the already in this intermediate position Side gusset tube 3 or the (side surfaces of) stretch film hood 2 essentially envelop the piece goods stack. Nevertheless - as can be seen from FIG. 7 - the film 2 or 3, which is still in frictional engagement with the bracket-like frame sections 9 'of the lifting frame 9, does not yet adhere to these in the region of the lower section 1' of the piece goods stack 1 and not yet applied to the pallet 10. If, in the state according to FIG.
  • the lifting frame 9 were disengaged from the film, in particular when the film 2 or 3 was stretched vertically, this could be the case even in the second phase, which is provided in the final pulling phase and reduced in comparison with the initial first operating speed Operating speed have the consequence that this extends up to over the underside of the piece goods stack 1 or the pallet top 10, at least the top layer 11 of the pallet 10, so that there is no desired bottom stretch in which the film 2 or 3 Top layer 11 engages under pallet 10 (see FIG. 8).
  • a pressure device 12 shown schematically in FIG. 7, is provided, in which it is in the illustrated embodiment, the (reefing rollers) of the reefing device, by means of which the gusseted tube 3 has previously been attached to the supports 17 of the bow-like frame sections 9 'of the lifting frame 9.
  • the reefing rollers essentially forming the pressing device 12 are pressed in the position shown in FIG. 7 according to the arrow 15 on the piece goods 1 or in a somewhat lower position on the upper layer 11 of the pallet 10.
  • the result of the measures according to the invention is that the film 2 or 3, owing to the reduced second operating speed on the one hand and the pressure by means of the pressing device 12 on the other hand, can “rest” with an understretch section 21 on the underside of the pallet top layer 11, the corresponding one
  • the measure can also be seen on the lower layer 22 of the pallet, as has been indicated in FIG. 8 with respect to the lower stretch section 21 'in a dash-dotted line, or in the case of one not on a pallet 10 or the like. supported loading unit immediately below the piece goods stack 1, as is readily apparent to those skilled in the art.
  • the lifting frame does not of course have to consist of bow-like sections of the type in question here (see FIGS. 5 and 6), but can, for example, consist of consist of a closed frame, the individual legs (for the purpose of cross-stretching) are telescopic.
  • the pressing device 12 can be designed in a wide variety of ways and, in particular, does not need to be a component of the reefing device, as is most expedient, but can, as has already been indicated, be realized, for example, by the fact that the lifting frame 9 is still on the lifting frame held film 2 or 3 in the negative pressure applied through the through holes 13 are held firmly on the lifting frame, while this is possibly / preferably moved from its pull-over position in the pull-over final phase closer to the packaged goods 1 and the film 2 or 3 is given the opportunity has to put firmly on the piece goods stack 1 or the pallet 10 or a part thereof, so that the understretch 21 or 21 'can then also be produced in an equivalent manner as in a normal "pressing device".

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Claims (4)

  1. Procédé pour envelopper des marchandises (1), éventuellement placées sur une palette (10) ou sur un dispositif analogue, avec un film étirable (2) en forme de tube ou de chape, en particulier pour des empilements de marchandises (1) en forme de cubes ou de parallélépipèdes et qui sont constitués de plusieurs couches de marchandises empilées les unes sur les autres, selon lequel la partie de film (3), qui forme l'enveloppe des faces latérales, est, avant l'emballage, repliée et étirée transversalement au-dessus des marchandises (1), et selon lequel le film (2), lors de l'emballage des marchandises (1), avant le détachement de son bord inférieur au niveau de la partie inférieure (1') des marchandises ou/et de la palette (10), est au moins provisoirement serré latéralement contre une butée et est délivré de ce serrage latéral lorsque le film (2) est fixé sur toute la hauteur aux marchandises (1) ou au moins partiellement à la palette (10), caractérisé en ce que la vitesse d'emballage est réduite pendant la phase finale d'emballage.
  2. Procédé selon la revendication 1, caractérisé en ce que le film (2) est déplacé, pendant le serrage, vers l'intérieur relativement à son contour d'emballage, au niveau ou au-dessous de la zone de serrage.
  3. Dispositif pour envelopper des marchandises (1), éventuellement placées sur une palette (10) ou sur un dispositif analogue, avec un film étirable (2) en forme de tube ou de chape, en particulier pour des empilements de marchandises (1) en forme de cubes ou de parallélépipèdes et qui sont constitués de plusieurs couches de marchandises empilées les unes sur les autres, comportant un cadre élévateur (9) de pliage et d'étirage, constitué de préférence de plusieurs parties de cadre (9') en forme d'arceaux, agencées globalement sur un plan (horizontal), conçues globalement sous la forme de L ou de C (en vue de dessus) et maintenues respectivement par des supports d'arceaux, cadre élévateur qui peut être déplacé, sur lequel la partie de film (2), qui forme l'enveloppe des faces latérales, est repliée, avant l'emballage, sur les marchandises (1) au moyen d'un dispositif de pliage comportant des rouleaux de pliage, et au moyen duquel le film (2) replié doit être étiré transversalement avant l'emballage, le film (2 ou 3) devant être serré, avant le détachement de son bord inférieur, par un dispositif de serrage (12), au niveau de la zone inférieure des marchandises (1), contre ces marchandises ou/et contre la palette (10), et le dispositif de serrage (12) devant être amené hors de prise du film (2 ou 3) lorsque le film (2 ou 3) s'est placé au bord inférieur des marchandises (1) et, éventuellement, au bord supérieur (11) de la palette (10) dispositif destiné à la mise en oeuvre du procédé selon les revendications 1 ou 2 et caractérisé en ce que le déplacement du cadre élévateur (9) passe, au moins pendant la phase de descente ou d'emballage, d'une première vitesse de fonctionnement à une deuxième vitesse réduite de fonctionnement ; et en ce que les rouleaux de pliage forment en même temps le dispositif de serrage (12).
  4. Dispositif selon la revendication 3, caractérisé en ce que le cadre élévateur (9) est muni d'embouchures de conduits (13) qui débouchent dans la zone de la surface de contact avec le film (2 ou 3), et en ce que les embouchures de conduits (13) sont alimentées avec une dépression pendant la phase d'emballage.
EP19910109763 1990-06-15 1991-06-14 Procédé et dispositif pour envelopper des marchandises avec un film étirable Revoked EP0461667B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94110621A EP0633186B1 (fr) 1990-06-15 1991-06-14 Procédé et dispositif pour envelopper des marchandises

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904019127 DE4019127C2 (de) 1990-06-15 1990-06-15 Verfahren und Vorrichtung zum Umhüllen von Stückgut
DE4019127 1990-06-15

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP94110621.3 Division-Into 1991-06-14

Publications (2)

Publication Number Publication Date
EP0461667A1 EP0461667A1 (fr) 1991-12-18
EP0461667B1 true EP0461667B1 (fr) 1995-05-24

Family

ID=6408455

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19910109763 Revoked EP0461667B1 (fr) 1990-06-15 1991-06-14 Procédé et dispositif pour envelopper des marchandises avec un film étirable
EP94110621A Revoked EP0633186B1 (fr) 1990-06-15 1991-06-14 Procédé et dispositif pour envelopper des marchandises

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94110621A Revoked EP0633186B1 (fr) 1990-06-15 1991-06-14 Procédé et dispositif pour envelopper des marchandises

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EP (2) EP0461667B1 (fr)
DE (4) DE4042550C2 (fr)
DK (2) DK0461667T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20109692U1 (de) * 2001-06-13 2002-10-24 Beumer Maschinenfabrik Gmbh & Co. Kg, 59269 Beckum Vorrichtung zum Umhüllen von Stückgut mittels einer Stretchfolienhaube

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211297A1 (de) * 1992-04-03 1993-10-14 Moellers Maschf Gmbh Vorrichtung und Verfahren zur Bildung eines Gutstapels
EP1059233A1 (fr) * 1999-04-16 2000-12-13 Kl- Lachenmeier A/S Procédé et dispositif pour emballer des objets dans une housse en feuille
EP1048566A1 (fr) 1999-04-16 2000-11-02 Kl- Lachenmeier A/S Procédé et dispositif pour emballer des objets dans une housse en feuille
EP1048565B1 (fr) 1999-04-16 2005-10-26 Kl- Lachenmeier A/S Procédé et dispositif pour emballer des objets dans une housse en feuille
EP1106507A1 (fr) * 1999-12-09 2001-06-13 Effe 3 Tl Srl Proçédé et dispositif pour appliquer une housse sur un objet
DE10109556B4 (de) * 2001-02-28 2009-12-03 Beumer Gmbh & Co. Kg Verfahren und Einrichtung zum Umhüllen von insbesondere gestapelt auf einer Palette angeordnetem Stückgut
EP1266828B1 (fr) 2001-06-13 2005-05-04 Beumer Maschinenfabrik GmbH & Co. KG Procédé et appareil pour envelopper des piles de marchandises avec une housse ou un manchon de film étirable
WO2003062062A1 (fr) * 2002-01-24 2003-07-31 Lachenmeier A/S Procede et dispositif pour l'emballage de marchandises de detail
FR2846943B1 (fr) 2002-11-12 2005-02-18 Thimon Procede et dispositif de mise en place d'une housse d'emballage de film plastique etirable sur une charge palettisee
EP1589043A3 (fr) 2003-08-11 2006-02-15 ExxonMobil Chemical Patents Inc. Polymères d'éthylène, éventuellement avec des esters copolymérisables, films obtenus avec ceux-ci et procédé d' emballage avec une housse étirable utilisant ces films
ITBO20040174A1 (it) * 2004-03-26 2004-06-26 Aetna Group Spa Apparecchiatura per la copertura di gruppi di prodotti con film tubolare estensibile
DE102009020454B3 (de) 2009-05-08 2010-10-28 Maschinenfabrik Möllers Gmbh Verfahren und Vorrichtung zum Herstellen einer palettenlosen Verpackungseinheit und palettenlose Verpackungseinheit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2146446A1 (de) * 1970-09-16 1972-05-04 Nippon Industry Machine Co Ltd., Kyoto (Japan) Verfahren und Einrichtung zum Ver packen von Gegenstanden
US4050219A (en) * 1976-02-19 1977-09-27 Comptex, Inc. Bagging machine
DE3918311C3 (de) * 1988-06-03 1997-10-09 Beumer Maschf Bernhard Verfahren und Vorrichtung zum Umhüllen von Stückgut, insbesondere Stückgutstapeln, mit einer Stretchfolienhaube
DE9001321U1 (de) * 1990-02-06 1990-04-12 Develog, Reiner Hannen & Cie, Corgémont Vorrichtung zum Überziehen von Strechfolienhauben über einen Gutstapel
DE9001319U1 (de) * 1990-02-06 1990-04-12 MSK-Verpackungs-Systeme GmbH, 47533 Kleve Vorrichtung zum Überziehen von Stretchfolienhauben über einen Gutstapel
DE4019041C1 (fr) * 1990-06-14 1991-10-17 Bernhard Beumer Maschinenfabrik Kg, 4720 Beckum, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20109692U1 (de) * 2001-06-13 2002-10-24 Beumer Maschinenfabrik Gmbh & Co. Kg, 59269 Beckum Vorrichtung zum Umhüllen von Stückgut mittels einer Stretchfolienhaube

Also Published As

Publication number Publication date
EP0461667A1 (fr) 1991-12-18
DE4042550C2 (de) 2002-08-01
DK0633186T3 (da) 1996-05-13
EP0633186A1 (fr) 1995-01-11
DE59105559D1 (de) 1995-06-29
DE4019127A1 (de) 1991-12-19
DE59107175D1 (de) 1996-02-08
DK0461667T3 (da) 1995-08-07
EP0633186B1 (fr) 1995-12-27
DE4019127C2 (de) 1994-11-17

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