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GB1185256A - Improvements in or relating to Automatic Tearing Devices for Plastics Film - Google Patents

Improvements in or relating to Automatic Tearing Devices for Plastics Film

Info

Publication number
GB1185256A
GB1185256A GB1833968A GB1833968A GB1185256A GB 1185256 A GB1185256 A GB 1185256A GB 1833968 A GB1833968 A GB 1833968A GB 1833968 A GB1833968 A GB 1833968A GB 1185256 A GB1185256 A GB 1185256A
Authority
GB
United Kingdom
Prior art keywords
rollers
roller
tearing
slide
sheets
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.)
Expired
Application number
GB1833968A
Inventor
Giuseppe Rossi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1833968A priority Critical patent/GB1185256A/en
Publication of GB1185256A publication Critical patent/GB1185256A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/22—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of both discrete and continuous layers
    • B32B37/223—One or more of the layers being plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Making Paper Articles (AREA)

Abstract

1,185,256. Severing by tearing. G. ROSSI. 18 April, 1968, No. 18339/68. Heading B4B. An automatic tearing device for plastics film comprises a pair of feed rollers 1, 2 for feeding coupled cardboard sheets F in marginal superimposed relationship and connected to each other by a plastics film v, a pair of incision rollers 7, 8 the upper roller of which has spikes 9 and the lower roller of which has a rubber covering so as to incise the edge of the film v adjacent the superimposed margin N of the sheets F, and a pair of tearing rollers 4, 5 for dragging the plasticized coupled sheets with a greater translational speed than that of the rollers 1, 2 so as to cause a progressive divergent tearing of the film adjacent the margin N. The feed rollers and the incision rollers preferably form part of a continuous coupling machine. Preferably, one or both rollers 4, 5 are inclined to the axes of the other rollers. The roller 7 is driven from a shaft 35, Fig. 4, through two pairs of helical gear-wheels 50, 70 and 40, 90, the gear-wheel 50 being mounted on a slide 42 which is translatable, by means of a threaded bolt 19 and a hand wheel 3, so as to synchronize the roller 7 with the drive of the coupling machine without stopping the machine. The shaft 89 of the roller 7 is mounted in a slide 30 which is shiftable vertically, by means of a threaded bolt 47 and a hand wheel 14, so as to adjust the distance between the rollers 7 and 8. An end 11 of the roller 4 and that of roller 5 are mounted to revolve in a slide 56 which is shiftable vertically, by means of a threaded bolt and a hand wheel 33, so as to alter the angle of the axes of the rollers 4, 5 with respect to the other roller axes. The rollers 4, 5 are pressed against each other by means of two hand wheels 55 pressing bushes 60 upwardly by helical return springs 46. A slide grate (23), Fig. 6 (not shown), downstream of the rollers 7, 8 supports two coupled sheets 7 just before the tearing operation. The roller 4 is preferably formed by sections (4a), (4c) and (4e), Fig. 6.
GB1833968A 1968-04-18 1968-04-18 Improvements in or relating to Automatic Tearing Devices for Plastics Film Expired GB1185256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1833968A GB1185256A (en) 1968-04-18 1968-04-18 Improvements in or relating to Automatic Tearing Devices for Plastics Film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1833968A GB1185256A (en) 1968-04-18 1968-04-18 Improvements in or relating to Automatic Tearing Devices for Plastics Film

Publications (1)

Publication Number Publication Date
GB1185256A true GB1185256A (en) 1970-03-25

Family

ID=10110773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1833968A Expired GB1185256A (en) 1968-04-18 1968-04-18 Improvements in or relating to Automatic Tearing Devices for Plastics Film

Country Status (1)

Country Link
GB (1) GB1185256A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5071067A (en) * 1973-10-24 1975-06-12
GB2193676A (en) * 1986-07-31 1988-02-17 Autobond Ltd Separating sheets from a web
EP0328295A2 (en) * 1988-02-06 1989-08-16 Autobond Limited Sheet separating apparatus
WO2014207419A1 (en) * 2013-06-24 2014-12-31 Vivid Laminating Technologies Limited Improvements in laminating
WO2017076948A3 (en) * 2015-11-04 2017-06-29 Koenig & Bauer Ag Separation device for separating portions of a material web, laminating machine comprising a separation device and method for separating at least one portion of a material web
CN109585329A (en) * 2017-09-29 2019-04-05 郑竹岚 Tear film sticking apparatus and its method
WO2019127281A1 (en) * 2017-12-28 2019-07-04 深圳市柔宇科技有限公司 Film adhering apparatus and method for adhering film to inner wall of cylinder
CN113526213A (en) * 2021-07-30 2021-10-22 滕州市中等职业教育中心学校 Page tearing machine for logistics receipt production

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5071067A (en) * 1973-10-24 1975-06-12
GB2193676A (en) * 1986-07-31 1988-02-17 Autobond Ltd Separating sheets from a web
EP0328295A2 (en) * 1988-02-06 1989-08-16 Autobond Limited Sheet separating apparatus
EP0328295A3 (en) * 1988-02-06 1990-10-03 Autobond Limited Sheet separating apparatus
WO2014207419A1 (en) * 2013-06-24 2014-12-31 Vivid Laminating Technologies Limited Improvements in laminating
US9815264B2 (en) 2013-06-24 2017-11-14 Vivid Laminating Technologies Limited Laminating
WO2017076948A3 (en) * 2015-11-04 2017-06-29 Koenig & Bauer Ag Separation device for separating portions of a material web, laminating machine comprising a separation device and method for separating at least one portion of a material web
CN109585329A (en) * 2017-09-29 2019-04-05 郑竹岚 Tear film sticking apparatus and its method
WO2019127281A1 (en) * 2017-12-28 2019-07-04 深圳市柔宇科技有限公司 Film adhering apparatus and method for adhering film to inner wall of cylinder
CN113526213A (en) * 2021-07-30 2021-10-22 滕州市中等职业教育中心学校 Page tearing machine for logistics receipt production
CN113526213B (en) * 2021-07-30 2023-01-31 滕州市中等职业教育中心学校 Page or leaf machine that tears of commodity circulation document production usefulness

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees