Sheet stacker

Details Sheet stacker Sheet stacker

1985-08-26

1987-05-26

Schacher, Richard A.

Sheet feeding or delivering

Delivering

Multiple discharge

83 80, 83 88, 198577, 198462, 271182, 271199, 271202, 271216, 271217, B65H 2918

Patent

active

046679537

ABSTRACT:
A sheet stacker for a corrugation machine having a cutter to widthwisely cut off a continuously manufactured corrugated cardboard web into corrugated cardboard sheets, and then transfer, stack and eject the sheets. The sheet stacker comprises: a shingling conveyor arranged downstream of an outlet of the cutter for shingling the sheets; braking apparatus arranged above the shingling conveyor for braking the sheets transferred from the cutter; a first transfer conveyor arranged downstream of the shingling conveyor and which is vertically pivotable about its end portions on the upstream side thereof; a stopper disposed between the shingling conveyor and the first transfer conveyor for selectively stopping the sheets; at least one second transfer conveyor arranged in the downstream of the first transfer conveyor; a sheet stacking mechanism disposed downstream of the second transfer conveyor and which is vertically movable for receiving and stacking the sheets discharged from the second transfer conveyor; a drive mechanism for moving the sheet stacking mechanism up and down at a variable speed; and an adjustment mechanism for controlling the drive mechanism in response to the magnitude of a sheet stacking speed to thereby adjust a descent speed of the sheet stacking mechanism.

REFERENCES:
patent: 2673735 (1954-03-01), Niles et al.
patent: 2707142 (1955-04-01), Waite
patent: 3507489 (1970-04-01), Wilshin et al.
patent: 3729188 (1973-04-01), Stephanson
patent: 3998141 (1976-12-01), Hsiue
patent: 4040618 (1977-08-01), Vermes et al.
patent: 4111411 (1978-09-01), Graves et al.
patent: 4188861 (1980-02-01), Kroeze et al.
patent: 4424966 (1984-01-01), Chandoke

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