Blank stacking apparatus

Details Blank stacking apparatus Blank stacking apparatus

1983-03-07

1985-02-19

Paperner, Leslie J.

Material or article handling

With weighing

271197, 271218, 271224, 414 73, 414900, B65G 5704, B65H 3132

Patent

active

045002436

ABSTRACT:
Apparatus for stacking paperboard blanks including a timed conveyor utilizing vacuum pressure to hold the blanks by their leading edges beneath the conveyor and serially advance them against a backstop whereupon they are released by the vacuum to settle upon an elevator which lowers incrementally as a stack of blanks is formed thereon. When the stack is completed, interrupter tines move over the stack and under the conveyor to store oncoming blanks while the stack is discharged from the elevator after which is rises. As the tines withdraw, the stored blanks settle on the elevator and subsequent blanks form another stack. A counter is used to energize operation of the tines to form stacks of a predetermined number of blanks on the elevator. An inclined conveyor utilizing vacuum belts is used to feed the blanks into engagement with the timed conveyor.

REFERENCES:
patent: 2205767 (1940-06-01), Lamb
patent: 2895552 (1959-07-01), Pomper et al.
patent: 3022999 (1962-02-01), Mead
patent: 3263827 (1966-08-01), Verrinder
patent: 3362707 (1968-01-01), Lauren
patent: 3477711 (1969-11-01), Lyman
patent: 3698708 (1972-10-01), Brawn
patent: 3820779 (1974-06-01), Bishop
patent: 3892168 (1975-07-01), Grobman
patent: 4324522 (1982-04-01), Buccicone

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