Title: Feeding mechanism of bag manufacturing machine

Abstract: The present invention relates to a feeding mechanism for a bag manufacturing machine, in which a continuously fed film strip which has been folded double is cut to predetermined lengths to manufacture bags. The feeding mechanism includes a bar for forming film loops which is projectively provided on a number of transfer bodies which move in a circulation path, and is adapted to transfer the film in a looped state by the circulation of the transfer bodies and clamp the film before heat-sealing and cutting steps, thereby to precisely control film dimension.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Kobayasi, Sohei (Yokohama, JP)

Application Number: 06/053346
Filing Date: 1979-06-29
Publication_date: 1981-05-19
Assignee: MODERN MACHINERY CO LTD

Primary Class(es): 493/194 493/203, 156/583.500, 493/205, 493/239
Other Classes: B31B19/10; B65H20/24; B31B19/00; B65H20/00; B31B1/64; B31B1/16
US Patent Ref:

2720246	October, 1955	Piazze	156/583.5	Container making machine
3147168	September, 1964	Bateman	156/583.5	Bag making machine and method
3418193	December, 1968	Hallowell, Jr.	156/583.5	Heat-sealing head
3867873	February, 1975	Simpson et al.	93/33H	Bag forming machines
3954371	May, 1976	Hutt et al.	93/33H	Apparatus for making bags from synthetic plastic film

Other Refs:
Primary Examiner: Coan, James F.
Assistant Examiner:
Attorney: Yeager, Arthur G.

Claims:

I claim:<