EP0379344A2 - Distributeur de feuilles - Google Patents

Distributeur de feuilles Download PDF

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Publication number
EP0379344A2
EP0379344A2 EP90300463A EP90300463A EP0379344A2 EP 0379344 A2 EP0379344 A2 EP 0379344A2 EP 90300463 A EP90300463 A EP 90300463A EP 90300463 A EP90300463 A EP 90300463A EP 0379344 A2 EP0379344 A2 EP 0379344A2
Authority
EP
European Patent Office
Prior art keywords
sheet
tension
roll
hot wire
wire
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Withdrawn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
EP90300463A
Other languages
German (de)
English (en)
Other versions
EP0379344A3 (fr
Inventor
Gordon Guthrie Mcdonald
Michael William Barnes
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.)
Devro Ltd
Original Assignee
Devro Ltd
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 Devro Ltd filed Critical Devro Ltd
Publication of EP0379344A2 publication Critical patent/EP0379344A2/fr
Publication of EP0379344A3 publication Critical patent/EP0379344A3/fr
Withdrawn legal-status Critical Current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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements

Definitions

  • This invention relates to a sheet dispenser for dispensing predetermined lengths of sheet material.
  • the dispenser may be used for many different materials such as thin film known as cling film, collagen film for wrapping food, or any other film-like sheet which needs to be dispensed in predetermined lengths and to be cut from a roll.
  • An object of the invention is to provide a compact and efficient film dispenser which will accurately dispense predetermined lengths of films and will cut them accurately and neatly.
  • the sheet material dispenser particularly for collagen sheet, comprises motor driven means to extract a predetermined length of sheet material from a roll of material located in the cabinet, and means to sever the dispensed sheet from the roll.
  • the means to sever the dispensed sheet from the roll comprises an electrically heated wire.
  • the wire may be supported transversely of the cabinet and there may be two tension rollers, carried by a tension head one above and one below the wire and means to press the sheet against the rollers during severing.
  • the means to press the sheet against the roller may comprise a transverse bar with means to move the bar towards the wire so that the bar contacts the tension rollers and move the tension head against spring pressure so that the sheet contacts and is cut by the stationary hot wire.
  • the dispensed sheet may simply be gripped and tension applied to it by rollers or tension blocks and then the wire moved through the sheet so as to cut it.
  • the roll of material may simply be supported on either rollers and be driven by motor driven rollers which are in contact with the sheet and pull it off the roller.
  • a cutter bar is used it is preferably supported on pivoted levers which are operable by solenoids.
  • the whole operation may be made automatic so that after a predetermined length of sheet has been dispensed the cutting operation is automatically effected and the hot wire, if used, is automatically held in contact with the sheet for a predetermined time such as to sever the sheet without danger of burning or melting it.
  • the sheet dispenser which is about to be described is particularly adapted for dispensing predetermined lengths of collagen film from a roll.
  • the dispenser is contained in a cabinet 8 in which is placed a collagen film roll 10 supported by a roll carrier 12 which has idler rolls 14 and 16 contacting the base roll 11 which carries the collagen film.
  • the collagen film roll simply rests on the idler rolls and is not driven by them.
  • the collagen film 18 is extracted from the film roll by feed rolls 20 and 22, roll 20 being driven (as seen in Figure 2) by a motor 60 driving through a gear box 58.
  • the hot wire cutter is supported as shown in Figure 2 between electrical connections 52 and 54 is held in tension by spring 56.
  • tension head rollers 30 and 32 supported in a tension head 26 which is biased towards the right as seen in Figure 1 by spring 28.
  • a cutter bar 34 is carried, as shown in Figure 3, by two levers 44 and 46 pivoted respectively of 43 and 45 and linked to the cutter bar 34 by pins 48 and 50.
  • the levers 44 and 46 are movable by means of respective arms 40 and 42 operated by solenoids 36 and 38. By operating both solenoids simultaneously the cutter bar may be moved from right to left as seen in Figure 1 so as to contact rollers 30 and 32 and to push the tension head to the left against pressure of spring 28. Thus bringing the collagen film 18 into contact with the hot wire 24 so that a predetermined length is severed.
  • the operator sets up a predetermined length of collagen film which is to be dispensed and switches the machine on.
  • the setting he has selected results in the motor 60 operating for a predetermined time so as to pass a predetermined length of film out of the casing 8.
  • the solenoids 36 and 38 automatically operate so as to move the levers 44 and 46 to bring the cutter bar 34 into contact with the tension head rollers 30 and 32 thus forcing the tension head back against the pressure spring 28 and bringing the collagen film into contact with the hot wire cutter. This causes the film to be severed and the predetermined cut length of collagen film falls out of the bottom of the casing 8 and may be collected in a suitable tray or other receptacle.
  • FIGs 4 and 5 two different types of cutting head are illustrated, the roller cutting head which has already been described and illustrated in Figure 1 and a beak cutting head 26a shown in Figure 5.
  • the beak cutting head does not employ rollers such as 30 and 32 but simply has a shaped pair of jaws 25 which together form a beak against which the hot wire is held by the cutter bar 34 when the cutting action takes place.
  • both of these cutting heads the operator first sets the sheet length required on a potentiometer dial 15a and then presses a push button marked start 16a.
  • the two motor driven rolls feed the film into a catch tray, not shown. When the selected length is reached the rolls stop.
  • the control circuit then applies current to the cutting wire. After a delay the cutter bar indexes forward tensioning the film over the tension head. As the film is tensioned the tension head is pushed back by the cutter bar bringing the film into contact with the hot wire thus cutting the film. The cutter bar then retracts to its rest position allowing the tension head to return. This action separates the cut sheet of film which drops into a catch tray. The dispenser is then ready for use again.
  • FIG. 6a An alternative method of cutting is shown in Figures 6a, b, c and d.
  • the collagen film 18 is again pulled off the roll 10 by driven rollers 20 and 22 and the hot wire cutter similar to that shown in Figure 1 is employed.
  • tension blocks 62 and 64 In this method of cutting collagen film the same principles are used as in the twin feed roll tension head. Prior to cutting the tension block 62,64 grip the film 18 and tension is applied in a downward direction. The hot wire is then passed through the film, the tension block separate the film after cutting and the film is dispensed into the catch tray as the tension blocks separate and return to the start position. These operations are illustrated sequentially in Figures 6a, b, c and d.
  • FIGs 7a and b Yet another arrangement in which there is no tension head or cutter bar employed merely using a hot wire is illustrated in Figures 7a and b.
  • a roll 10 has collagen film 18 which is pulled off the roll by driven feed rolls 20 and 22.
  • the film is maintained in tension by driven tension rolls 25 and 27.
  • This method of cutting collagen film is in principle the same as the roller cutting head and the beak cutting head again by tensioning the film prior to cutting with a hot wire. In this instance the film remains stationary after the feed measuring cycle and the hot wires pass through the film.
  • the tension rolls then continue to turn and dispense the film into the catch tray.

Landscapes

  • Basic Packing Technique (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Advancing Webs (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Meat, Egg Or Seafood Products (AREA)
EP19900300463 1989-01-19 1990-01-17 Distributeur de feuilles Withdrawn EP0379344A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8901184 1989-01-19
GB898901184A GB8901184D0 (en) 1989-01-19 1989-01-19 Sheet dispenser

Publications (2)

Publication Number Publication Date
EP0379344A2 true EP0379344A2 (fr) 1990-07-25
EP0379344A3 EP0379344A3 (fr) 1990-09-19

Family

ID=10650283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900300463 Withdrawn EP0379344A3 (fr) 1989-01-19 1990-01-17 Distributeur de feuilles

Country Status (6)

Country Link
EP (1) EP0379344A3 (fr)
JP (1) JPH02270751A (fr)
AU (2) AU4851990A (fr)
CA (1) CA2007959A1 (fr)
GB (1) GB8901184D0 (fr)
NZ (1) NZ232143A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291861A (en) * 1994-07-16 1996-02-07 Kampf Gmbh & Co Maschf Cutting webs in winding machines
EP0706078A1 (fr) * 1994-09-19 1996-04-10 Durst Phototechnik A.G. Dispositif de fixation pour matériaux enroulés
WO2006010626A1 (fr) * 2004-07-30 2006-02-02 Pemeas Gmbh Cartouche et procede de manipulation de membranes a film mince
WO2010115440A1 (fr) * 2009-04-09 2010-10-14 Form Orange Produktentwicklung Coupe-film
CN102935950A (zh) * 2011-08-16 2013-02-20 江苏省衣维新投资发展有限公司 一种退卷布方法
CN105460674A (zh) * 2015-12-25 2016-04-06 佛山市启达研磨器材科技有限公司 一种砂布分条机
CN108373058A (zh) * 2018-04-23 2018-08-07 广东科达洁能股份有限公司 一种双托辊支撑薄膜卷牵引出膜装置
CN109911686A (zh) * 2018-09-20 2019-06-21 唐立帆 一种塑料包装用的切割保鲜膜设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010475A1 (fr) * 1993-10-13 1995-04-20 Creative Products Pty. Limited Distributeur de film plastique d'emballage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949918A (en) * 1974-08-05 1976-04-13 Borden, Inc. Machine for dispensing uniform lengths of thick plastic film
CH579974A5 (fr) * 1972-12-19 1976-09-30 Nagema Veb K
AU1533383A (en) * 1981-10-13 1984-12-06 Dow Chemical Company, The Cutting and sealing plastic films or sheets
FR2563199A1 (fr) * 1984-04-18 1985-10-25 Alberto Medan Felici Dispositif de decoupe de films plastiques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579974A5 (fr) * 1972-12-19 1976-09-30 Nagema Veb K
US3949918A (en) * 1974-08-05 1976-04-13 Borden, Inc. Machine for dispensing uniform lengths of thick plastic film
AU1533383A (en) * 1981-10-13 1984-12-06 Dow Chemical Company, The Cutting and sealing plastic films or sheets
FR2563199A1 (fr) * 1984-04-18 1985-10-25 Alberto Medan Felici Dispositif de decoupe de films plastiques

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291861A (en) * 1994-07-16 1996-02-07 Kampf Gmbh & Co Maschf Cutting webs in winding machines
GB2291861B (en) * 1994-07-16 1998-07-15 Kampf Gmbh & Co Maschf Method and device for separating a web of plastics material
EP0706078A1 (fr) * 1994-09-19 1996-04-10 Durst Phototechnik A.G. Dispositif de fixation pour matériaux enroulés
US5823083A (en) * 1994-09-19 1998-10-20 Durst Phototechnik Ag Gripping apparatus for reel material
US7841555B2 (en) 2004-07-30 2010-11-30 Raymond Puffer Cartridge and method for handling thin film membranes
WO2006010626A1 (fr) * 2004-07-30 2006-02-02 Pemeas Gmbh Cartouche et procede de manipulation de membranes a film mince
WO2010115440A1 (fr) * 2009-04-09 2010-10-14 Form Orange Produktentwicklung Coupe-film
CN102935950A (zh) * 2011-08-16 2013-02-20 江苏省衣维新投资发展有限公司 一种退卷布方法
CN105460674A (zh) * 2015-12-25 2016-04-06 佛山市启达研磨器材科技有限公司 一种砂布分条机
CN108373058A (zh) * 2018-04-23 2018-08-07 广东科达洁能股份有限公司 一种双托辊支撑薄膜卷牵引出膜装置
CN108373058B (zh) * 2018-04-23 2024-03-12 广东科达洁能股份有限公司 一种双托辊支撑薄膜卷牵引出膜装置
CN109911686A (zh) * 2018-09-20 2019-06-21 唐立帆 一种塑料包装用的切割保鲜膜设备
CN109911685A (zh) * 2018-09-20 2019-06-21 唐立帆 一种塑料包装用的切割保鲜膜装置
CN109911685B (zh) * 2018-09-20 2020-06-26 唐立帆 一种塑料包装用的切割保鲜膜装置
CN109911686B (zh) * 2018-09-20 2020-06-30 唐立帆 一种塑料包装用的切割保鲜膜设备

Also Published As

Publication number Publication date
AU3684693A (en) 1993-06-03
GB8901184D0 (en) 1989-03-15
JPH02270751A (ja) 1990-11-05
EP0379344A3 (fr) 1990-09-19
NZ232143A (en) 1992-08-26
CA2007959A1 (fr) 1990-07-19
AU4851990A (en) 1990-07-26

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