Sheet transfer and stacking apparatus

Details Sheet transfer and stacking apparatus Sheet transfer and stacking apparatus

1978-04-24

1980-02-19

Stoner, Jr., Bruce H.

Material or article handling

With weighing

271184, 271189, 271218, 414 50, 414 98, B65H 3132, B65H 3130

Patent

active

041892704

ABSTRACT:
An apparatus is disclosed for transferring sheet material from a receiving station to a stacking station. A vertically reciprocative roll case is mounted to a stationary main frame by airsprings. Horizontally reciprocative transfer arms mounted on the main frame between the parallel rolls of the roll case, extend to transfer a sheet assembly to an adjacent stacking station when the roll case drops to a level below such arms. Stacking arms extending between but below the extended transfer arms are cantilevered from a vertically movable carriage on a support frame and receive the sheet assembly when the transfer arms retract. Accumulator arms parallel to and vertically aligned with the stacking arms are carried by a separate carriage movable vertically on the support frame. The stacking arms index downwardly a short distance upon receipt of each sheet assembly from the transfer arms. When the stacking arms have received a predetermined number of assemblies, they lower continuously to a level below a transfer conveyor to deposit the stack on such conveyor. As the stacking arms descend to the conveyor, the accumulator arms extend to receive additional sheet assemblies from the transfer arms. They also index downwardly upon the receipt of each sheet assembly. When the stacking arms are unloaded, they rise and relieve the accumulator arms of their load, whereupon the accumulator arms retract and rise to their upper limit position.

REFERENCES:
patent: 3134476 (1964-05-01), Pierson et al.
patent: 3231100 (1966-01-01), Faeber
patent: 3446368 (1969-05-01), Nelson
patent: 3489263 (1970-01-01), Gentry

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