EP0302534A2 - Chain link with a plate featuring a pincer, for haul-off of a sheet material - Google Patents

Chain link with a plate featuring a pincer, for haul-off of a sheet material Download PDF

Info

Publication number
EP0302534A2
EP0302534A2 EP88200192A EP88200192A EP0302534A2 EP 0302534 A2 EP0302534 A2 EP 0302534A2 EP 88200192 A EP88200192 A EP 88200192A EP 88200192 A EP88200192 A EP 88200192A EP 0302534 A2 EP0302534 A2 EP 0302534A2
Authority
EP
European Patent Office
Prior art keywords
plate
sheet material
bracket
movable jaw
pincer
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
EP88200192A
Other languages
German (de)
French (fr)
Other versions
EP0302534A3 (en
EP0302534B1 (en
Inventor
Carlo Garbagnati
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.)
Regina Industrie SpA
Original Assignee
REGINA INDUSTRIA SpA
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 REGINA INDUSTRIA SpA filed Critical REGINA INDUSTRIA SpA
Publication of EP0302534A2 publication Critical patent/EP0302534A2/en
Publication of EP0302534A3 publication Critical patent/EP0302534A3/en
Application granted granted Critical
Publication of EP0302534B1 publication Critical patent/EP0302534B1/en
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
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/045—Details of grippers

Definitions

  • the present invention relates to a chain link, one plate of which featuring a pincer, which is economical to manufacture and use and which is intended for the purpose of hauling-off sheet material, particularly but not solely a plastic film.
  • the object of the present invention is to embody a device that will satisfy the aforesaid requirements and is simple and economical to manufacture and highly dependable in use.
  • a chain link of the type in which a plate is provided with a pincer for hauling-off a sheet material, wherein: a bracket extends laterally in overhung manner from the said plate, forming in its upper portion a fixed jaw which cooperates with a movable jaw pivoted to the said plate and extends through an aperture in the said bracket, there acting between the said fixed and mobile jaws a spring which thrusts the movable jaw supportively against the fixed jaw in order to lock the said sheet material between them.
  • the chain link according to the invention is indicated overall by 10 and one of its plates 11 features a pincer 12.
  • the pincer 12 comprises a fixed jaw 13 on a bracket 14 formed enbloc from the plate 11, and a movable jaw 15 pivoted by means of a pin 16 to a seat 17, the movable jaw also being formed enbloc from the plate 11 by the folding back on an extremity thereof.
  • the movable jaw 15 extends through an aperture 18 in the bracket 14 and is embodied in a single piece comprising a fork 19, which is pivoted to the seat 17 through the agency of the pin 16, and a tongue 20 folded back under the fork 19.
  • the numeral 21 indicates a spring passing through an oversized section of the fork 19 and acting between the tongue 20 and tooth 22 which is inclined from the bracket 14.
  • the spring 21 provides thrust to maintain the movable jaw 15 in the position shown by a continuous line in Figure 2.
  • the spring 21 is retained laterally and guided by the cheeks of the fork 19 in order to prevent it from straying from the compressed working position.
  • the opening of the movable jaw 15 in relation to the fixed jaw 13 so as to be in the open position shown by dashed lines in Figure 2, is effected by a cam means (not shown) acting on the tongue 20, against the action of the return spring 21, so as to cause the movable jaw 15 to rotate about the pin 16 in the direction of the arrow 23. It is noteworthy that the operating end of the jaw 15 moves away from the fixed jaw 13 with a rearward component of motion so that the edge of the film to be gripped can rest itself on the fixed jaw with a vertical movement and thus without interfering with the movable jaw.
  • extruded film, or other sheet material can be laid on the brackets 14 of the chain type haul-off devices positioned proximally to the longitudinal sides of the film, or other sheet material, when the movable jaws 15 are thrust into the open position by the aforesaid cam means, after which the jaws 15 can be closed in a spontaneously automatic manner by relinquishment by the said cam means, so as to lock the sheet material on the fixed jaw 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Discharge By Other Means (AREA)
  • Chain Conveyers (AREA)
  • Advancing Webs (AREA)

Abstract

A chain link of the type in which a plate (11) is provided with a pincer (12) for hauling-off a sheet material comprises a bracket (14) extending laterally in an overhung fashion from the said plate (11) and forming in its upper portion a fixed jaw (13) which cooperates with a movable jaw (15) which is pivoted to the said plate and extends through an aperture in the said bracket; a spring (21) is arranged between the said fixed and mobile jaws to thrust the movable jaw supportively against the fixed jaw in order to lock the said sheet material between the jaws.

Description

  • The present invention relates to a chain link, one plate of which featuring a pincer, which is economical to manufacture and use and which is intended for the purpose of hauling-off sheet material, particularly but not solely a plastic film.
  • As is known to persons with ordinary skill in the art, downstream of a plastic film extruder provision must be made for means that will haul-off the extruded film to a subsequent work-station, at the same time keeping the film appropriately taut.
  • For such purpose it is known to use chain type haul-off devices disposed laterally to the extruded film and featuring means adapted to grip the said film and haul it off in a forward direction. The said haul-off means have to be constructed so that they permit, initially, the laying of the film on the chain and, subsequently, the positive engagement of the said film for its haul-off.
  • The object of the present invention is to embody a device that will satisfy the aforesaid requirements and is simple and economical to manufacture and highly dependable in use.
  • This object is attained by a chain link of the type in which a plate is provided with a pincer for hauling-off a sheet material, wherein: a bracket extends laterally in overhung manner from the said plate, forming in its upper portion a fixed jaw which cooperates with a movable jaw pivoted to the said plate and extends through an aperture in the said bracket, there acting between the said fixed and mobile jaws a spring which thrusts the movable jaw supportively against the fixed jaw in order to lock the said sheet material between them.
  • The structural and functional characteristics of the invention, and its advantages over the known art, will become more apparent from an examination of the following description, referred to the appended drawings, which show an example of a chain link embodied in accordance with the innovative principles of the invention. In the drawings:
    • - Figure 1 is an enlarged perspective view of the chain link in question; and
    • - Figure 2 is an enlarged vertical section illustrating the same link as in Figure 1 after assembly, where the movable jaw of the pincer is shown in the open position by a dashed line.
  • With reference to the drawings, the chain link according to the invention is indicated overall by 10 and one of its plates 11 features a pincer 12. The pincer 12 comprises a fixed jaw 13 on a bracket 14 formed enbloc from the plate 11, and a movable jaw 15 pivoted by means of a pin 16 to a seat 17, the movable jaw also being formed enbloc from the plate 11 by the folding back on an extremity thereof.
  • As can be clearly seen from the appended drawings, the movable jaw 15 extends through an aperture 18 in the bracket 14 and is embodied in a single piece comprising a fork 19, which is pivoted to the seat 17 through the agency of the pin 16, and a tongue 20 folded back under the fork 19.
  • The numeral 21 indicates a spring passing through an oversized section of the fork 19 and acting between the tongue 20 and tooth 22 which is inclined from the bracket 14. The spring 21 provides thrust to maintain the movable jaw 15 in the position shown by a continuous line in Figure 2. For thus purpose, and as is clearly shown in the Figures, the spring 21 is retained laterally and guided by the cheeks of the fork 19 in order to prevent it from straying from the compressed working position.
  • The opening of the movable jaw 15 in relation to the fixed jaw 13 so as to be in the open position shown by dashed lines in Figure 2, is effected by a cam means (not shown) acting on the tongue 20, against the action of the return spring 21, so as to cause the movable jaw 15 to rotate about the pin 16 in the direction of the arrow 23. It is noteworthy that the operating end of the jaw 15 moves away from the fixed jaw 13 with a rearward component of motion so that the edge of the film to be gripped can rest itself on the fixed jaw with a vertical movement and thus without interfering with the movable jaw. This means that extruded film, or other sheet material, can be laid on the brackets 14 of the chain type haul-off devices positioned proximally to the longitudinal sides of the film, or other sheet material, when the movable jaws 15 are thrust into the open position by the aforesaid cam means, after which the jaws 15 can be closed in a spontaneously automatic manner by relinquishment by the said cam means, so as to lock the sheet material on the fixed jaw 13.
  • There is in this manner attained the object referred to in the introductory part of the specification, i.e. the embodiment of a haul-off device of remarkable simplicity and economy and highly dependable in use.

Claims (3)

1) Chain link of the type in which a plate is provided with a pincer for hauling-off a sheet material, wherein there are comprised: a bracket extending laterally in an overhung fashion from the said plate and forming in its upper portion a fixed jaw which cooperates with a movable jaw which is pivoted to the said plate and extends through an aperture in the said bracket, there acting between the said fixed and mobile jaws a spring which thrusts the movable jaw supportively against the fixed jaw in order to lock the said sheet material between them.
2) Link as described in claim 1, wherein the said bracket is formed enbloc from the said plate, from which there is also formed enbloc a seat for a trunnion for the said movable jaw.
3) Link as described in claim 2, wherein the said movable jaw comprises a fork pivoted to the said seat through the intermediary of the said trunnion and, below the said fork, a tongue on which rests an end of the said spring, the opposite end of which is engaged with a tooth folded back from the said bracket, the said spring passing through an oversize section of the said fork, which retains it laterally.
EP19880200192 1987-08-03 1988-02-04 Chain link with a plate featuring a pincer, for haul-off of a sheet material Expired - Lifetime EP0302534B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2216287U IT211781Z2 (en) 1987-08-03 1987-08-03 CHAIN LINK WITH PLATE EQUIPPED WITH GRIPPER FOR DRAGING A SHEET MATERIAL.
IT2216287U 1987-08-03

Publications (3)

Publication Number Publication Date
EP0302534A2 true EP0302534A2 (en) 1989-02-08
EP0302534A3 EP0302534A3 (en) 1990-04-04
EP0302534B1 EP0302534B1 (en) 1994-05-04

Family

ID=11192428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880200192 Expired - Lifetime EP0302534B1 (en) 1987-08-03 1988-02-04 Chain link with a plate featuring a pincer, for haul-off of a sheet material

Country Status (4)

Country Link
EP (1) EP0302534B1 (en)
DE (1) DE3889394T2 (en)
ES (1) ES2051826T3 (en)
IT (1) IT211781Z2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8809355U1 (en) * 1988-07-22 1989-09-07 Fabricius, Karl, Hünenberg Clamp chain for film transport
US5222727A (en) * 1991-05-24 1993-06-29 Idab-Wamac Aktiebolag Side-gripping conveyor
DE4339092A1 (en) * 1993-11-16 1995-05-18 Hubertus Dipl Ing Hein Flat material transport apparatus
EP1602608A1 (en) * 2004-06-02 2005-12-07 Matam France Device for continuously driving a strip of deformable material
WO2014012550A1 (en) * 2012-07-20 2014-01-23 Coloplast A/S A manufacturing system for processing a web
EP2740677A1 (en) * 2012-12-10 2014-06-11 Multivac Sepp Haggenmüller GmbH & Co. KG Transport device for deep draw packaging machine
DE202012013216U1 (en) 2012-12-10 2015-06-17 Multivac Sepp Haggenmüller Gmbh & Co. Kg Transport device for thermoforming packaging machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047395B4 (en) * 1999-10-26 2013-11-28 Heidelberger Druckmaschinen Ag Transport system for flat products

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT316428B (en) * 1970-11-19 1974-07-10 Otto Haemmerle Maschb Overrun runner for the temporary opening of transport clamps for web-shaped materials
DE3001742A1 (en) * 1980-01-18 1981-07-23 Adolf Illig Maschinenbau Gmbh & Co, 7100 Heilbronn Plastics foil holding clamp on conveyor chain - is spring loaded and hinged on stirrup and tongue in stirrup shank openings
DE3025697C2 (en) * 1980-07-07 1982-11-18 Joh. Winklhofer & Söhne, 8000 München Device for the temporary clamping of sheet material
DE3109237C2 (en) * 1981-03-11 1983-09-01 Joh. Winklhofer & Söhne, 8000 München Device for the temporary clamping of material
DE3315419A1 (en) * 1983-04-28 1984-10-31 Multivac Sepp Haggenmüller KG, 8941 Wolfertschwenden TRANSPORTATION DEVICE FOR GUIDING A MATERIAL RAIL IN A PACKING MACHINE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8809355U1 (en) * 1988-07-22 1989-09-07 Fabricius, Karl, Hünenberg Clamp chain for film transport
US5222727A (en) * 1991-05-24 1993-06-29 Idab-Wamac Aktiebolag Side-gripping conveyor
DE4339092A1 (en) * 1993-11-16 1995-05-18 Hubertus Dipl Ing Hein Flat material transport apparatus
EP1602608A1 (en) * 2004-06-02 2005-12-07 Matam France Device for continuously driving a strip of deformable material
FR2871147A1 (en) * 2004-06-02 2005-12-09 Matam France Sa DEVICE FOR CONTINUOUSLY DRIVING A BAND OF DEFORMABLE MATERIAL
WO2014012550A1 (en) * 2012-07-20 2014-01-23 Coloplast A/S A manufacturing system for processing a web
EP2740677A1 (en) * 2012-12-10 2014-06-11 Multivac Sepp Haggenmüller GmbH & Co. KG Transport device for deep draw packaging machine
US9051125B2 (en) 2012-12-10 2015-06-09 Multivac Sepp Haggenmueller Gmbh & Co. Kg Conveying unit for thermoform packaging machine
DE202012013216U1 (en) 2012-12-10 2015-06-17 Multivac Sepp Haggenmüller Gmbh & Co. Kg Transport device for thermoforming packaging machine

Also Published As

Publication number Publication date
DE3889394D1 (en) 1994-06-09
IT211781Z2 (en) 1989-05-08
EP0302534A3 (en) 1990-04-04
EP0302534B1 (en) 1994-05-04
IT8722162V0 (en) 1987-08-03
DE3889394T2 (en) 1994-11-10
ES2051826T3 (en) 1994-07-01

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