GB611652A - Bag making machine - Google Patents

Bag making machine

Info

Publication number
GB611652A
GB611652A GB13435/46A GB1343546A GB611652A GB 611652 A GB611652 A GB 611652A GB 13435/46 A GB13435/46 A GB 13435/46A GB 1343546 A GB1343546 A GB 1343546A GB 611652 A GB611652 A GB 611652A
Authority
GB
United Kingdom
Prior art keywords
rollers
tube
roll
strip
former
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
GB13435/46A
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 GB13435/46A priority Critical patent/GB611652A/en
Publication of GB611652A publication Critical patent/GB611652A/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
    • B31B70/645—Making seals transversally to the direction of movement
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • 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
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0014—Flexible containers made from webs by folding webs longitudinally having their openings facing transversally to the direction of movement
    • 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

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Making Paper Articles (AREA)

Abstract

611,652. Bag-making machines. FITZPATRICK, H. J. (Richens, A. W.). May 2, 1946, No. 13435. [Class 94 (ii)] For bags made of heat-sealable material, or thermoplastically-coated. material, the material is formed into a tube, passed between rollers 31, 32 where the tube is heat-sealed and partially. severed, the tube then being fed at varying speeds between pairs of rollers 42, 46, the former pair holding a bag section while the rollers 46, moving faster than the rollers 42, exert a snatching effort on the tube and complete the severance of a bag from the tube. The tube is preferably preheated by passing it over an electrically or steam-heated foll 93 to within a few degrees of the sealing temperature at the rollers 31, 32. The tube may be folded around a former 20, or formed by two strips which are sealed together at the edges. Fig. 2 shows a roll 14 of strip material which is passed around guide rollers, over a former 20, through the pre-heating, heat-sealing and cutting and final snatch-severance stages. Guide bands 40, 39, are stretched over rollers, some loose; the others being driven through gears from a motor 60. Hand feeding mechanism may be operated by a wheel 81. The spacing between pairs of rollers 42, 46 may be varied to vary the sizes of the bags. A brake on the shaft 12 provides a slight resistance to the rotation of the roll 14, creating tension in the strip of material. Feeding rolls 29, 30 are preferably covered with, or formed, of a material such as rubber to grip the strip of material and draw it from the roll 14. The pressure between the rolls may be adjusted. Holding segments 42, 43 are preferably formed of corrugated rubber blocks. The speed ratios and temperatures at various stations in the machine are given in the Specification.
GB13435/46A 1946-05-02 1946-05-02 Bag making machine Expired GB611652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13435/46A GB611652A (en) 1946-05-02 1946-05-02 Bag making machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13435/46A GB611652A (en) 1946-05-02 1946-05-02 Bag making machine

Publications (1)

Publication Number Publication Date
GB611652A true GB611652A (en) 1948-11-02

Family

ID=10022942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13435/46A Expired GB611652A (en) 1946-05-02 1946-05-02 Bag making machine

Country Status (1)

Country Link
GB (1) GB611652A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295879A1 (en) * 1974-12-25 1976-07-23 Dainippon Printing Co Ltd SELF-SUPPORTING PACKAGING BAG, ITS MANUFACTURING PROCESS AND MACHINE IMPLEMENTED IN THIS PROCESS
EP0140816A1 (en) * 1983-10-31 1985-05-08 Crown Zellerbach Corporation Pneumatic conveyor system for flexible webs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295879A1 (en) * 1974-12-25 1976-07-23 Dainippon Printing Co Ltd SELF-SUPPORTING PACKAGING BAG, ITS MANUFACTURING PROCESS AND MACHINE IMPLEMENTED IN THIS PROCESS
EP0140816A1 (en) * 1983-10-31 1985-05-08 Crown Zellerbach Corporation Pneumatic conveyor system for flexible webs

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