Reciprocally moving hot-wire for bag making machine

Details Reciprocally moving hot-wire for bag making machine Reciprocally moving hot-wire for bag making machine

1980-12-29

1982-03-16

Van Balen, William J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156515, B32B 3100, B29D 706

Patent

active

043199526

ABSTRACT:
A hot-wire type cutting machine for severing a continuous web of thermoplastic sheet material into individual segments. The web is arranged to be advanced, step-by-step, and while stationary, the hot-wire is made to pass progressively through the web from one side edge thereof to the other and then, the web is indexed another step. During the next cutting stroke of the hot-wire through the web, the same portion of the wire first contacting the web on the previous cutting stroke is the first to contact the web on the second cutting stroke.

REFERENCES:
patent: 3748205 (1973-07-01), Adams
patent: 3776804 (1973-12-01), Monahan et al.
patent: 4029539 (1977-06-01), Doll
patent: 4101369 (1978-07-01), Adams
patent: 4268346 (1981-05-01), Achelpohl

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