Adhesion breaker for sheet stacks

Details Adhesion breaker for sheet stacks Adhesion breaker for sheet stacks

1991-04-25

1993-01-12

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separator and conveyor

271 24, 271104, 271106, B65H 508

Patent

active

051783770

ABSTRACT:
An apparatus transports sheets of material and breaks the adhesion between first and second sheets when sheets are fed from a stack one at a time. The apparatus includes a gripper which is mounted on a gripper arm and grips the first sheet. The arm repeatedly and cyclically moves the leading edge of the first sheet to be fed while the first sheet is held by the gripper. The arm moves the leading edge of the first sheet both horizontally and vertically. The vertical cyclical motion causes air pockets to travel between the first and second sheets and the horizontal cyclical motion translates the first sheet relative to the second sheet to break the adhesion.

REFERENCES:
patent: 2159456 (1939-05-01), Spiess
patent: 3861668 (1975-01-01), Wood
patent: 4509736 (1985-04-01), Stahl et al.
patent: 4690394 (1987-09-01), Maul et al.
patent: 5029039 (1991-06-01), Kuzuya et al.

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