Suction control system for suction cup sheet feeding apparatus

Details Suction control system for suction cup sheet feeding apparatus Suction control system for suction cup sheet feeding apparatus

1986-03-21

1988-03-01

Rolla, Joseph J.

Sheet feeding or delivering

Feeding

Separators

271 9, 271104, 271108, 271171, 414128, B65H 308

Patent

active

047280921

ABSTRACT:
Sheet feeding apparatus includes a relatively small number of horizontally adjustable suction cups distributed over the length of a feed opening. The suction cups are raisable to grasp the bottommost sheet in the stack at the most ideal position to assure removal of the sheet from the feed opening. Adjustable guide members align the corners of a stack of sheets above the feed opening. Each suction cup is fed from a separate pneumatic tube extending from a manually switchable control panel where a source of low suction pressure is selectively connectible to the suction cups in various connection combinations.

REFERENCES:
patent: 3181860 (1965-05-01), Liebenow et al.
patent: 3498663 (1970-03-01), Cantrill
patent: 3617048 (1971-11-01), Albert
patent: 3754751 (1973-08-01), Capetti et al.
patent: 3893664 (1975-07-01), Thomsen
patent: 3991997 (1976-11-01), Barber
patent: 4121819 (1978-10-01), Di Francesco et al.
patent: 4236710 (1980-12-01), Nakamura et al.
patent: 4437657 (1984-03-01), Selak
patent: 4592542 (1986-06-01), Selak

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