Apparatus for the manufacture of plastic bags by wave-like incis

Details Apparatus for the manufacture of plastic bags by wave-like incis Apparatus for the manufacture of plastic bags by wave-like incis

1984-10-05

1986-09-02

Husar, Francis S.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to work material, the product or means engaging...

493197, 493227, 493372, 493926, 83428, B31B 118, B31B 186, B31B 1902

Patent

active

046093664

ABSTRACT:
An apparatus for making plastic handle bags from an advancing flat tubular web includes a knife supported above the moving web and reciprocated transversely by a cam roller to produce a sinusoidal-wave-like cut longitudinally of the web. A support guide having a slot at least as wide as the wave amplitude is positioned beneath the web so that in the event of an interruption of feed the guide lowers, withdrawing the web from the knife, which continues to reciprocate, thereby avoiding start-up inertial friction or chatter. Downstream of the cutting station a detour assembly phase shifts one of the half-tubes 180.degree. to align the transversely extending bag edges for heat sealing. The cutting support assembly is longitudinally movable of the web.

REFERENCES:
patent: 157815 (1874-12-01), Hall
patent: 204145 (1878-05-01), Ford et al.
patent: 449057 (1891-03-01), Perkins
patent: 3066394 (1962-12-01), Litzka
patent: 3183750 (1965-05-01), Davis, Jr. et al.
patent: 3797345 (1974-03-01), Allen
patent: 4174657 (1979-11-01), Suominen
patent: 4398903 (1983-08-01), Lemacher

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