EP0270880A1 - Appareil de scellage et de découpage dans des machines d'enveloppement automatiques à mouvement continu - Google Patents

Appareil de scellage et de découpage dans des machines d'enveloppement automatiques à mouvement continu Download PDF

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Publication number
EP0270880A1
EP0270880A1 EP87116882A EP87116882A EP0270880A1 EP 0270880 A1 EP0270880 A1 EP 0270880A1 EP 87116882 A EP87116882 A EP 87116882A EP 87116882 A EP87116882 A EP 87116882A EP 0270880 A1 EP0270880 A1 EP 0270880A1
Authority
EP
European Patent Office
Prior art keywords
sealing
counter
transmission
conveyor
sealing members
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.)
Withdrawn
Application number
EP87116882A
Other languages
German (de)
English (en)
Inventor
Flavio Zambelli
Rodolfo Bettini
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.)
ZAMBELLI Srl
Original Assignee
ZAMBELLI Srl
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 ZAMBELLI Srl filed Critical ZAMBELLI Srl
Publication of EP0270880A1 publication Critical patent/EP0270880A1/fr
Withdrawn legal-status Critical Current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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes

Definitions

  • the present invention relates to an apparatus for the sealing and cutting of wrappers of thermoplastic film, in which the wrapper enclosing the product is formed by two separate webs of film which are sealed together and cut so as to obtain a tubular wrapper.
  • a known machine of this type comprises a feed conveyor for the products to be wrapped, intermediate carrier means carrying a film sealing member, a further conveyor, arranged above the said intermediate carrier means, carrying the counter-sealing members which are intended to cooperate with the sealing member in order to seal and cut at appropriate points that two films giving origin to the wrapper, and a discharge conveyor for the wrapped products.
  • Such a machine is disclosed, for example, in the Italian Patent Application No. 12431 A/86, filed on 21/02/86 in the name of the same applicant.
  • At least one sealing member is mounted on a slat conveyor which is bridged between a feed conveyor and a discharge conveyor.
  • the conveyor carrying the counter-sealing members is actuated in timed relationship with the conveyor carrying the sealing members by a central driving source and by means of chains or equivalent means.
  • the chain for transmitting the movement to the conveyor carrying the counter-sealing members is driven by buffer means controlled by a lever-and-cam system actuated by said central driving source, the arrangement being such that said counter-sealing members are actuated with a variable motion, more particularly, such that said sealing countermembers will be first advanced synchronously with the sealing members, then will be stopped or moved back to permit a new product to enter the sealing/cutting station, and, finally, they will be advanced at such a speed as to follow up the product at the rear thereof until they reach the co-operation position with the sealing members to carry out the sealing and cutting step in order to sever the wrapper of heat-shrink film from the films which give origin to said wrapper.
  • FIGS 1, 2 and 3 are diagrammatic side views of the apparatus of the invention, during successive operational steps.
  • T1 indicates a horizontal conveyor which feeds, at a suitable speed, the products P to be wrapped
  • T2 indicates the conveyor which moves away the wrapped products and which is in line and co-planar with said conveyor T1.
  • a slat conveyor 1 which supports the product during the wrapper sealing and cutting step and during the transfer from T1 to T2.
  • the conveyor 1 is passed around the shafts 2-102-202-302-402, the shaft 2 being actuated by a chain and sprocket drive 3 which is driven by a drive shaft 4.
  • the conveyor 1 carries one or more sealing members S1-S2 which are equally spaced apart and disposed transversely to the path of travel of the product P to be wrapped.
  • Said sealing members are of conventional type and are so arranged as to effect two parallel seals and one intermediate cut therebetween.
  • F1 and F2 indicate two lengths of films unrolled from respective rolls (not shown) arranged above and below the conveyor T1, respectively, which join each other downstream of said conveyor T1, prior to the active stroke of the sealing members S1-S2.
  • the product P fed from the conveyor T1 is wrapped, while passing from T1 to 1, with the films F1, F2 on its lower face, front face and upper face in a known manner.
  • CS1, CS2, CS3 indicate the counter-sealing members, which are parallel to said sealing members, are equally spaced apart and are supported at their ends by a pair of chain conveyors 5 passed around shafts 6-106-206-306 which are parallel to the shafts 2 to 402 and arranged so that said counter-sealing members will be suitably positioned opposite said sealing members during their active stroke or a portion thereof.
  • the chain 107 of the chain drive 7 is passed also around two pairs of stationary idle sprockets 8-108 and 9-109, so as to form two loops since said chain is passed as well on a pair of equal sprockets 10-110 which are mounted on a slide 11 parallel to said loops and supported by a stationary guide diagrammatically shown at 12.
  • the two loops of the chain 107 will be lengthened and shortened of the same extent, so as to accelerate and decelerate the rotation of the shaft 6, in such a manner that said counter-sealing members will be moved with a variable motion as stated before.
  • This motion is suitably related to the motion of the sealing members by connecting the slide 11 to a lever 13 which is fulcrumed at 14 on a stationary support and which, through its intermediate pin 15, follows the contour of a cam 16 keyed on the shaft 4.
  • the contour of said cam controls the movement of the sealing counter-members according to the following law.
  • All the chains used in the apparatus of the invention are of pre-stretched type to minimize the slacks resulting from the use of said chains.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP87116882A 1986-11-19 1987-11-16 Appareil de scellage et de découpage dans des machines d'enveloppement automatiques à mouvement continu Withdrawn EP0270880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1258386 1986-11-19
IT12583/86A IT1201676B (it) 1986-11-19 1986-11-19 Apparato di saldatura e taglio per macchine automatiche continue adibite alla fasciatura di prodotti rpeconfezionati con un avvolgimento tubolare e calibrato di film termore traibile

Publications (1)

Publication Number Publication Date
EP0270880A1 true EP0270880A1 (fr) 1988-06-15

Family

ID=11141878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116882A Withdrawn EP0270880A1 (fr) 1986-11-19 1987-11-16 Appareil de scellage et de découpage dans des machines d'enveloppement automatiques à mouvement continu

Country Status (2)

Country Link
EP (1) EP0270880A1 (fr)
IT (1) IT1201676B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388606A2 (fr) * 1989-02-14 1990-09-26 Renzo Grossi Appareil pour emballer en continu un lot de récipients ou similaires
EP0728668A1 (fr) * 1995-02-22 1996-08-28 Paper Converting Machine Company Dispositif et procédé de scellement pour machine d'emballage
EP0872423A1 (fr) * 1997-04-18 1998-10-21 BECK PACKAUTOMATEN GMBH & CO. Dispositif convoyeur adaptable pour un dispositif d'enveloppement
NL1029053C2 (nl) * 2005-05-13 2006-11-14 Zti Mechatronics B V Inrichting en werkwijze voor het omwikkelen van een voorwerp.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163038A (en) * 1966-08-12 1969-09-04 Nippon Carbide Kogyo Kk Packaging Machine.
US3727365A (en) * 1971-04-29 1973-04-17 Anderson Bros Mfg Co Method and apparatus for wrapping articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163038A (en) * 1966-08-12 1969-09-04 Nippon Carbide Kogyo Kk Packaging Machine.
US3727365A (en) * 1971-04-29 1973-04-17 Anderson Bros Mfg Co Method and apparatus for wrapping articles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388606A2 (fr) * 1989-02-14 1990-09-26 Renzo Grossi Appareil pour emballer en continu un lot de récipients ou similaires
EP0388606A3 (en) * 1989-02-14 1990-11-22 Renzo Grossi Method and apparatus for continuously packaging batches of containers or the like
EP0728668A1 (fr) * 1995-02-22 1996-08-28 Paper Converting Machine Company Dispositif et procédé de scellement pour machine d'emballage
EP0872423A1 (fr) * 1997-04-18 1998-10-21 BECK PACKAUTOMATEN GMBH & CO. Dispositif convoyeur adaptable pour un dispositif d'enveloppement
NL1029053C2 (nl) * 2005-05-13 2006-11-14 Zti Mechatronics B V Inrichting en werkwijze voor het omwikkelen van een voorwerp.

Also Published As

Publication number Publication date
IT1201676B (it) 1989-02-02
IT8612583A0 (it) 1986-11-19

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE CH DE ES FR GB LI NL SE

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Effective date: 19881117

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Effective date: 19900917

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18D Application deemed to be withdrawn

Effective date: 19910129

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Inventor name: BETTINI, RODOLFO

Inventor name: ZAMBELLI, FLAVIO