Suction device for the gripping and decollating of the bottom bl

Details Suction device for the gripping and decollating of the bottom bl Suction device for the gripping and decollating of the bottom bl

1990-07-16

1991-07-02

Olszewski, Robert P.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 90, 271 95, 271 99, 271112, 271120, 271132, 271276, 294 641, B65H 508

Patent

active

050280430

ABSTRACT:
A device for gripping and decollating a bottom blank comprises a rotary shaft with a flat outer peripheral portion. Suction orifices in the shaft extend through the flat surface portion and communicate with suction cups carried by the shaft. Free outer edges of the suction cups contact the bottom blank, whereupon the application of suction causes the suction cups to contract. The suction orifices include enlarged outer portions for receiving the contracted suction cups such that the bottom blank is pulled flush against the flat surface portion of the shaft for a more effective application of suction forces.

REFERENCES:
patent: 1942527 (1934-01-01), Winkler et al.
patent: 2111024 (1938-03-01), Donnellan
patent: 2745665 (1956-05-01), Labombarde
patent: 3154306 (1964-01-01), Elliott et al.
patent: 3423084 (1969-01-01), Konazewski
patent: 3521879 (1970-07-01), Niemeyer
patent: 3773318 (1973-11-01), Glaser et al.
patent: 3893644 (1975-07-01), Thomsen
patent: 3976292 (1976-08-01), Yoshida
patent: 4239204 (1980-12-01), Miyagawa et al.
patent: 4323768 (1982-04-01), Uchida
patent: 4428815 (1989-02-01), Powell et al.
patent: 4564188 (1986-01-01), McNair
patent: 4669716 (1987-06-01), VanderSyde et al.

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