摘要:
Signature loader comprising a telescopically related main floor-mounted frame (10) and smaller auxiliary frame (20), first and second horizontal rotatable shafts (26,56) between the frames spaced apart by a predetermined distance and so positioned that infeed belts (42,50) thereon converge to define between them a signature infeed throat (70), one of said shafts (26,56) being a pivot about which the auxiliary frame (20) may be pivoted so that the throat (70) may be selectively positioned in one of two alternate attitudes.
摘要:
A sheet feeder (10) has a supply station (16) wherein signatures fresh from the printing press are stacked. The stack is supported such that the signatures are in an arched, non-planar configuration. A sheet stripper (18) extracts signatures successively from the stack and feeds them in a constant stream to a transfer conveyor (20). The stripper grips the sheets with a suction device which applies a constant but locally intermittent vacuum. The transfer conveyor carries the signatures to a delivery station (22). The delivery station includes fingers (116) which arch the signatures. Arching the signatures in the supply and delivery stations prevents rolling of the signatures.
摘要:
A sheet feeder (10) has a supply station (16) wherein signatures fresh from the printing press are stacked. The stack is supported such that the signatures are in an arched, non-planar configuration. A sheet stripper (18) extracts signatures successively from the stack and feeds them in a constant stream to a transfer conveyor (20). The stripper grips the sheets with a suction device which applies a constant but locally intermittent vacuum. The transfer conveyor carries the signatures to a delivery station (22). The delivery station includes fingers (116) which arch the signatures. Arching the signatures in the supply and delivery stations prevents rolling of the signatures.