File folder unfolding machine

Details File folder unfolding machine File folder unfolding machine

1983-06-13

1985-07-23

Vlachos, Leonidas

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

290 55, B31B 126

Patent

active

045306885

ABSTRACT:
The machine for unfolding folded file folders has a sucker member rotatable about a horizontal axis, wherein there is a suction inlet that opens to a sucker surface facing away from that axis. Folded file folders are stacked in a magazine with their surfaces substantially upright and their folds lowermost and parallel to said axis. A front folder in the magazine has its front surface tangent to a rear portion of the orbit of the sucker surface, where that surface moves upward, to be attached to the sucker member by suction and thus lifted, opened and moved forward into nip rollers near the top of that orbit. At each revolution of the sucker member the magazine is advanced forward through a distance equal to the thickness of a folded folder.

REFERENCES:
patent: 3152800 (1964-10-01), Hanson
patent: 3938799 (1976-02-01), Macke

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