GB1073572A - Bag making machine and method - Google Patents

Bag making machine and method

Info

Publication number
GB1073572A
GB1073572A GB34338/64A GB3433864A GB1073572A GB 1073572 A GB1073572 A GB 1073572A GB 34338/64 A GB34338/64 A GB 34338/64A GB 3433864 A GB3433864 A GB 3433864A GB 1073572 A GB1073572 A GB 1073572A
Authority
GB
United Kingdom
Prior art keywords
strip
sealing
conveyers
chains
conveyer
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
GB34338/64A
Inventor
Lawrence Giles Bateman
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.)
Delamere and Williams Co Ltd
Original Assignee
Delamere and Williams Co 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 Delamere and Williams Co Ltd filed Critical Delamere and Williams Co Ltd
Priority to GB34338/64A priority Critical patent/GB1073572A/en
Publication of GB1073572A publication Critical patent/GB1073572A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/648—Uniting opposed surfaces or edges; Taping by applying heat or pressure using tools mounted on belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/144—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/642—Uniting opposed surfaces or edges; Taping by applying heat or pressure using sealing jaws or sealing dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/649—Uniting opposed surfaces or edges; Taping by applying heat or pressure using tools mounted on a drum

Landscapes

  • Making Paper Articles (AREA)

Abstract

1,073,572. Making bags. DELAMERE & WILLIAMS CO. Ltd. Aug. 21, 1964, No. 34338/64. Heading B5D. A bag-making machine having sealing apparatus produces longitudinally spaced seals in a continuously moving strip of bag-forming material, the sealing apparatus comprising a pair of opposed conveyer means each of which has longitudinally spaced sealing elements arranged to co-operate with corresponding sealing elements on the other conveyer means and means for effecting an increase and a decrease in the pitch of the sealing elements. Heat sealable material is fed from a roll 12 under a shaping member 30 where it is formed into a U-shaped strip, between rollers, 36, 38, and then between opposed continuously travelling conveyer chains 44, 46, having electrically heated sealing bars, 40, 42, which grip and withdraw the material from the roll and also seal together the side walls of the strip along spaced transverse zones. The chains 44, 46 are separated from each other under the action of a spring when the machine is stopped to permit threading the leading edge of the strip, while on starting the machine an air cylinder and piston rod overcome the spring and move the two conveyers along transverse rods towards each other. The conveyer chains comprise expansion links between the sealing bars and are expanded and contracted between adjustable stops by the action of a compressed-air device and springs which vary the distance between shafts 62, 66 and 70, 74 connected to sprockets 60, 64, 68, 72 driving the conveyer chains. In operation printed areas on the strip are fed past a photo-electric cell 208 controlled by a pair of contacts which are closed once during each individual sealing operation. With the chains in the contracted position the sealing bars are a little closer to each other than the spacing between printed areas on the strip, so that eventually the cell 208 detects the trailing edge of a printed area on the strip and then operates the air device to stretch the conveyers, the air device being kept in operation for a fixed time by a delay. When the conveyers are stretched the sealing bars are spaced a little further apart than printed areas on the strip which thus " advance " to become clear of the photoelectric cell by the end of the fixed time at which the conveyers are contracted. In this way registration of the sealed portions with the spaces between the printed areas is maintained and production tolerances in the spacing between the printing are accommodated.
GB34338/64A 1964-08-21 1964-08-21 Bag making machine and method Expired GB1073572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB34338/64A GB1073572A (en) 1964-08-21 1964-08-21 Bag making machine and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34338/64A GB1073572A (en) 1964-08-21 1964-08-21 Bag making machine and method

Publications (1)

Publication Number Publication Date
GB1073572A true GB1073572A (en) 1967-06-28

Family

ID=10364399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34338/64A Expired GB1073572A (en) 1964-08-21 1964-08-21 Bag making machine and method

Country Status (1)

Country Link
GB (1) GB1073572A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375975A1 (en) * 1976-12-28 1978-07-28 Windmoeller & Hoelscher DEVICE FOR MANUFACTURING CHAINS OR STRIPS OF BAGS
CN108000946A (en) * 2017-12-28 2018-05-08 厦门亚太创新机器有限公司 The synchronous heat sealing mechanism of polybag
CN108099267A (en) * 2017-12-28 2018-06-01 厦门亚太创新机器有限公司 The production equipment of plastic jacket bag
CN114750462A (en) * 2022-03-22 2022-07-15 杭州数创自动化控制技术有限公司 Plastic film bag making method based on vector control

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375975A1 (en) * 1976-12-28 1978-07-28 Windmoeller & Hoelscher DEVICE FOR MANUFACTURING CHAINS OR STRIPS OF BAGS
CN108000946A (en) * 2017-12-28 2018-05-08 厦门亚太创新机器有限公司 The synchronous heat sealing mechanism of polybag
CN108099267A (en) * 2017-12-28 2018-06-01 厦门亚太创新机器有限公司 The production equipment of plastic jacket bag
CN108099267B (en) * 2017-12-28 2023-11-17 厦门亚太创新机器有限公司 Production equipment for plastic vest bag
CN108000946B (en) * 2017-12-28 2023-11-21 厦门亚太创新机器有限公司 Synchronous heat sealing mechanism for plastic bags
CN114750462A (en) * 2022-03-22 2022-07-15 杭州数创自动化控制技术有限公司 Plastic film bag making method based on vector control

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