GB913086A - Improvements in or relating to the production of bags - Google Patents

Improvements in or relating to the production of bags

Info

Publication number
GB913086A
GB913086A GB27646/60A GB2764660A GB913086A GB 913086 A GB913086 A GB 913086A GB 27646/60 A GB27646/60 A GB 27646/60A GB 2764660 A GB2764660 A GB 2764660A GB 913086 A GB913086 A GB 913086A
Authority
GB
United Kingdom
Prior art keywords
mandrel
tube
roller
auxiliary
mandrels
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
GB27646/60A
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.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
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 Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of GB913086A publication Critical patent/GB913086A/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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/52—Folding sheets, blanks or webs by reciprocating or oscillating members other than plungers and dies, e.g. by fingers
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms

Landscapes

  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Abstract

913,086. Making bags. SCHWEIZERISCHE INDUSTRIE-GES. Aug. 10, 1960 [Aug. 19, 1959], No. 27646/60. Class 94(2). Bag-making apparatus comprises an auxiliary mandrel 1 to form a tube from pre-cut sheets each having thermoplastic material at least along the margins, heatable clamping and welding jaws 12, 13 for welding together the sheet edges to seam the tube, whilst on the auxiliary mandrel, the auxiliary mandrel being movable axially towards a main mandrel 2, and conveyer means for transferring the tube to the main mandrel for folding and welding an end of the tube to form a bottom of the bag. The main mandrels 2 are movable in steps about a vertical axle 4 to different working positions. A blank 17 is positioned on a table 16, forming the top of the folding box 14, by holders 18 and the folding box is raised to the position, shown dotted in Fig. 2, where the blank is wrapped round the mandrel 1, against the bottom of which it is pressed by a punch 15. The heating jaws 12, 13 are on the ends of rockers 10, 11 which are rocked towards one another, about an axle 9, to the Fig. 3 position, the movement folding the part 17<SP>1</SP> of the blank along the top of the mandrel and a seam then being heatsealed between the jaws. A lever 7, acting through a push rod 8, then moves the mandrel 1 and the tube towards one of the mandrels 2, of which there may be four, which radiate horizontally and rotate in steps about a vertical axis 4. As the mandrel 2 swings into position opposite the mandrel 1, a roller 27 is acted on by a fixed abutment 28 to pivot a member 21, which carries the roller, about a pin 22. The member 21 forms the bottom part of the mandrel 2 and is then moved, against a spring 23, to reduce the size of the mandrel and so enable the tube to be transferred on to it. With the mandrels 1 and 2 in line, the roller 19 cooperates with another roller to push the tube over the mandrel 2. A line 26 acting through a rocker 25, then lowers clamping member 24 to retain the tube on the mandrel 2. The auxiliary mandrel 1 is then retracted and the mandrel 2 is turned to another position at which the end of the tube is folded and heat-sealed to form it into the bottom of a bag in known manner.
GB27646/60A 1959-08-19 1960-08-10 Improvements in or relating to the production of bags Expired GB913086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7715259A CH373947A (en) 1959-08-19 1959-08-19 Process for the production of bags and apparatus for carrying out the process

Publications (1)

Publication Number Publication Date
GB913086A true GB913086A (en) 1962-12-19

Family

ID=4535440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27646/60A Expired GB913086A (en) 1959-08-19 1960-08-10 Improvements in or relating to the production of bags

Country Status (2)

Country Link
CH (1) CH373947A (en)
GB (1) GB913086A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH661021A5 (en) * 1983-01-18 1987-06-30 Sig Schweiz Industrieges METHOD AND ARRANGEMENT FOR PRODUCING HOSE PACKS.

Also Published As

Publication number Publication date
CH373947A (en) 1963-12-15

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