Device for positioning plate-shaped pieces during their transfer

Details Device for positioning plate-shaped pieces during their transfer Device for positioning plate-shaped pieces during their transfer

1989-05-16

1991-02-05

Schacher, Richard A.

Sheet feeding or delivering

Feeding

With means to align sheet

271236, B65H 708

Patent

active

049898558

ABSTRACT:
A device which includes a camera arranged above a feed table to simultaneously scan a front edge and a lateral edge of a plate-shaped piece or sheet having a printed area adjacent the edges of the sheet characterized by transmitting an output of the camera to a signal processor and calculating unit to compare the output of the camera to a reference signal to create error signals which are used to operate motors for moving the lateral stops and front stops in accordance with the amount of error signals to correct misalignment of the sheet.

REFERENCES:
patent: 4677474 (1987-06-01), Sato
patent: 4680627 (1987-07-01), Sase
patent: 4849914 (1989-07-01), Medioni

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