EP1048571A1 - Vorrichtung zum umhüllen einer palettisierten Ladung mittels eines Heissschrumpfschlauches - Google Patents

Vorrichtung zum umhüllen einer palettisierten Ladung mittels eines Heissschrumpfschlauches Download PDF

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Publication number
EP1048571A1
EP1048571A1 EP00410041A EP00410041A EP1048571A1 EP 1048571 A1 EP1048571 A1 EP 1048571A1 EP 00410041 A EP00410041 A EP 00410041A EP 00410041 A EP00410041 A EP 00410041A EP 1048571 A1 EP1048571 A1 EP 1048571A1
Authority
EP
European Patent Office
Prior art keywords
sheath
pallet
installing
handling device
heat shrink
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
EP00410041A
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English (en)
French (fr)
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EP1048571B1 (de
Inventor
Jean-Paul Charles Martin Cocher
Georges Jaconelli
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.)
THIMON
Original Assignee
Thimon Ste
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Filing date
Publication date
Application filed by Thimon Ste filed Critical Thimon Ste
Publication of EP1048571A1 publication Critical patent/EP1048571A1/de
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Publication of EP1048571B1 publication Critical patent/EP1048571B1/de
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
    • 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

  • the retraction cycle used in handling machines known successively comprises a first step of transferring the charge under the hooding station, a second transfer step under the shrinking station, a load raising step allowing the flexible sheath to descend lower than the lower level of the support pallet, a first stage of retraction of the part low protruding from the sheath, a suction step for this protruding part from 10 to 20 cm below the lower plane of the pallet, a step of depositing the load on the conveyor, and finally a second stage of retraction of the lateral faces of the sheath on the load by vertical displacement from bottom to top of the hot air generator frame.
  • the horizontal transfer of the load from the upstream station to the retraction, and from the retraction station to the downstream station, is generally ensured by a roller conveyor, or with handling chains.
  • the lifting movement of the palletized load allowing the forced folding of the film under the lower plane of installation of the support pallet is generally provided by an operating mechanism actuated by jacks pneumatic or hydraulic.
  • Support elements adapted to the dimensions and shape of the pallet are arranged between the boards of the laying plane, commonly called skis, so as not to hinder the return to the interior of the film over a hundred distance, and on the entire perimeter of the support pallet.
  • the film can be sucked towards the center of the pallet, for example as mentioned in document EP-A-133462, and facilitate this conformation for certain applications.
  • the pallet is then rested on the conveyor, the projecting part of the film then being pinched between the chains or the rollers of the conveyor, and the lower boards or skis from the support pallet.
  • This pinching allows, during and after the lateral and upper sides of the sheath are retracted on the palletized load, increase the resistance to shrinkage of the packaging cover, and optimize cohesion loads during cooling.
  • a first drawback may arise during the operation of lifting of the palletized load.
  • the load is carried by the studs of the table in contact with the upper boards of the wooden pallet, and the whole weight of the load, can be of the order of two tonnes, is then supported by two or three planks of the pallet, strongly requesting their nailing to tear off.
  • the pallets can either be of economic realization of the lost type, either recorded with several dozen customer-supplier transfers that have altered their mechanical resistance, it often happens that the loads are destabilized at following a breakout or a break in one of the boards. The charges can then tip over into the machine during the lifting operation.
  • Costly control systems can be provided to prevent this. incident, but they require operator intervention, and they brake the production.
  • the plastic sheath is generally positioned on the load at the previous station the retraction machine, and a horizontal weld closes this sheath at the top of the load so as to constitute a waterproof cover.
  • the cover is significantly higher than the load so that reserve in the lower part, the material conformation under the support pallet.
  • the film can be sucked horizontally in direction of the center of the pallet all or part of the retraction time of this part of movie.
  • This operation can be carried out either by a suction device placed generally under the table (of the type described in document EP-A-133462), or with an external motor mechanism sucking air into a connection duct.
  • the invention aims to remedy the three aforementioned drawbacks, and consists to carry out a handling device keeping the load in its plane of transfer, without level change during shrinkage and shaping of the film under the pallet.
  • the folding means comprise a fan associated with a suction duct telescopic located between the maneuvering pads, said sheath being arranged for direct the hot air in a substantially constant direction, stressing the end bottom of the film sucked under the crossbars of the pallet.
  • the actuating members are formed by cams mounted on at least one shaft driven in rotation by a motor.
  • the shaft can be coupled directly to the motor, or via a chain transmission kinematics.
  • the motor includes reversing means in the direction of rotation, so as to blow the air towards an internal surface to unfold the sheath and move it away from the pallet when the motor turns in a direction of rotation predetermined and then to create a depression inside the sheath to conform the lower end of said sheath under the sleepers when the engine is running in the opposite direction during the retraction phase.
  • the telescopic sheath is formed by a first fixed skirt of the fan attached to the chassis of the transfer chains, and a second movable skirt in conjunction with the maneuvering pads.
  • the second cylindrical skirt has a diameter greater than that of the first skirt, and is mounted coaxially with it.
  • the depression inside the sheath is obtained by means of a first suction when the support frame of the hot air generator is moved down towards the lower end of the sheath, and a second suction more stronger than the first during the retraction phase of said end.
  • the start of the first aspiration advantageously precedes the heating phase for the retraction of said end of the sheath.
  • the palletized load 1 rests on a support pallet 2 made of wood or plastic.
  • Transfer chains 4 are carried by side members integral with each other, and constituting the chassis of the chains 4.
  • the rollers 5 are positioned in this phase on the part high of the cams 7, that is to say on a large diameter sector of this cam.
  • the heat-shrinkable cover 17 is placed on the load, and the lower edge rests on the chains 3.
  • a fan 14 secured to the chassis 4 of the transfer chains 3 is located between the four maneuvering pads 9, and has a first skirt vertical 15 also fixed on said chassis.
  • a second cylindrical skirt 16 having a diameter slightly greater than that of the first skirt 15, is fixed to the chassis of the pads 9, and moves with them vertically.
  • the second skirt 16 is mounted coaxially on the first skirt 15 by forming a telescopic sheath.
  • Figure 2 shows the phase prior to the retraction of the part lower of the sheath 17.
  • the air drawn by the fan 14 towards the inside of the cover 17 is blown into the annular space between the top of the second skirt 16 and the floor 10 from pallet 2.
  • the air flow is directed against the inner surface of the duct retractable 17, and moves it away from the pallet 2.
  • the sheath 17 is thus released from any attachment point, and is unscrewed falling down.
  • the section of sheath necessary for conformation under the skis 11 of pallet 2 can be used in its entirety.
  • a hot air generator 18 is mounted on the frame, which descends vertically along the sheath (see arrow F1).
  • the fan 14 then turns in the opposite direction at low speed to cause a first aspiration intended to bring the film closer to load 1 and to avoid any skimming effect which would be caused by a subsequent entry of hot air under the duct 17.
  • the air generator hot 18 is not in service during this downward movement according to F1.
  • Figure 3 shows the first stage of retraction of the part lower of the sheath 17.
  • the hot air generator 18 works and sends the hot air against the lower end of the duct 17 until the bring to its shrinking temperature.
  • the film of the sheath 17 is sucked towards the center of the table in a direction d (d 'for the symmetrical part of the machine).
  • the suction direction d or d 'of the film is substantially horizontal.
  • the fan motor 14 rotates in the same direction, but at higher speed compared to that of FIG. 2a, so as to create a strong depression inside the cover. This second aspiration is more stronger than the first aspiration.
  • FIG. 4 represents the entire device at the time preceding the contact between chains 3, film 17 and skis 11.
  • Figure 5 shows the second step of shrinking the faces sides of the sheath 17 against the load.
  • the hot air generator 18 moves vertically from bottom to top (arrow F2), the film 17 being pinched under the skis 11 of the pallet 2.
  • the maneuvering pads 9 are moved under the plane of the chains of transfer 3 to allow the later evacuation of the packaged load.
  • the studs 19 are supported by the rollers 12, with the small diameter part of the cams 13. Following the layout of the cams 7 and 13, the motor 8 may have directions of identical or reversed rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP20000410041 1999-04-26 2000-04-26 Vorrichtung zum umhüllen einer palettisierten Ladung mittels eines Heissschrumpfschlauches Expired - Lifetime EP1048571B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9905415 1999-04-26
FR9905415A FR2792609B1 (fr) 1999-04-26 1999-04-26 Dispositif de manutention pour la pose d'une gaine plastique thermoretractable sur une charge palettisee

Publications (2)

Publication Number Publication Date
EP1048571A1 true EP1048571A1 (de) 2000-11-02
EP1048571B1 EP1048571B1 (de) 2004-03-03

Family

ID=9544999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000410041 Expired - Lifetime EP1048571B1 (de) 1999-04-26 2000-04-26 Vorrichtung zum umhüllen einer palettisierten Ladung mittels eines Heissschrumpfschlauches

Country Status (4)

Country Link
EP (1) EP1048571B1 (de)
DE (1) DE60008618D1 (de)
ES (1) ES2215593T3 (de)
FR (1) FR2792609B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115444020A (zh) * 2022-09-28 2022-12-09 江苏中大新材料科技有限公司 一种用于热收缩膜的收缩装置及其收缩工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111114872A (zh) * 2018-11-01 2020-05-08 浙江彩创包装材料科技有限公司 用于瓶底包膜的辅助装置
CN110834771A (zh) * 2019-11-22 2020-02-25 安徽永锋智能包装科技有限公司 冰箱透明包装套袋收底方法
CN110745306A (zh) * 2019-11-22 2020-02-04 安徽永锋智能包装科技有限公司 冰箱包装收底设备
DE202021103827U1 (de) * 2021-07-16 2022-01-12 Msk - Verpackungs-Systeme Gmbh Formvorrichtung zur Durchführung eines Verfahren zur Schaffung zumindest eines Freibereichs in einer aus Schrumpffolie bestehenden, vorzugsweise als Schrumpfhaube ausgebildeten, Ummantelung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133462A2 (de) 1983-08-03 1985-02-27 MSK-Verpackungs-Systeme Gesellschaft mit beschränkter Haftung Verfahren zum Verpacken von palettierten Gutstapeln und Vorrichtung zur Durchführung dieses Verfahrens
EP0601222A1 (de) * 1992-12-04 1994-06-15 ERAPA-CEKA Maschinenbau und -handel GmbH Verfahren sowie Vorrichtung zum Verpacken von insbesondere gestapelten Waren mit einer heissschrumpffähigen Folienhülle
EP0649791A1 (de) * 1993-10-26 1995-04-26 Maschinenfabrik Möllers GmbH u. Co. Verfahren und Vorrichtung zum Einschrumpfen einer Schrumpffolienhaube
EP0678452A1 (de) * 1994-04-22 1995-10-25 Newtec International Vorrichtung und Verfahren zum Verpacken einer palettisierten Ladung mittels eines Heissschrumpfschlauches
EP0697337A1 (de) * 1994-08-12 1996-02-21 Newtec International Verfahren und Vorrichtung für die äussere Verpackung einer palettisierten Ladung durch Wärmeschrumpfen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133462A2 (de) 1983-08-03 1985-02-27 MSK-Verpackungs-Systeme Gesellschaft mit beschränkter Haftung Verfahren zum Verpacken von palettierten Gutstapeln und Vorrichtung zur Durchführung dieses Verfahrens
EP0601222A1 (de) * 1992-12-04 1994-06-15 ERAPA-CEKA Maschinenbau und -handel GmbH Verfahren sowie Vorrichtung zum Verpacken von insbesondere gestapelten Waren mit einer heissschrumpffähigen Folienhülle
EP0649791A1 (de) * 1993-10-26 1995-04-26 Maschinenfabrik Möllers GmbH u. Co. Verfahren und Vorrichtung zum Einschrumpfen einer Schrumpffolienhaube
EP0678452A1 (de) * 1994-04-22 1995-10-25 Newtec International Vorrichtung und Verfahren zum Verpacken einer palettisierten Ladung mittels eines Heissschrumpfschlauches
EP0697337A1 (de) * 1994-08-12 1996-02-21 Newtec International Verfahren und Vorrichtung für die äussere Verpackung einer palettisierten Ladung durch Wärmeschrumpfen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115444020A (zh) * 2022-09-28 2022-12-09 江苏中大新材料科技有限公司 一种用于热收缩膜的收缩装置及其收缩工艺

Also Published As

Publication number Publication date
FR2792609B1 (fr) 2001-07-13
EP1048571B1 (de) 2004-03-03
DE60008618D1 (de) 2004-04-08
FR2792609A1 (fr) 2000-10-27
ES2215593T3 (es) 2004-10-16

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