Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1984-03-08
1986-05-27
Schacher, Richard A.
Sheet feeding or delivering
Feeding
Separator and conveyor
271 311, 271 93, 271107, 271146, 271194, B65H 510
Patent
active
045911401
ABSTRACT:
An arrangement for separating and transporting uppermost sheets of a stack of sheets or sheet-like objects has a movable suction mouthpiece in which negative pressure acting for adhering the sheet simultaneously controls the movement of the suction mouthpiece in a longitudinal direction in a guide, the movable suction mouthpiece is connected with a valveless pump which produces in a connecting conduit between the suction mouthpiece and the pump periodically alternating negative pressure and positive pressure phases, and the guide of the movable suction piece is arranged so that a movement direction provided by the guide is inclined relative to the direction of the force of gravity at such an angle that the resultant of a lifting movement of the sheet produced during the lower pressure phase of the movable suction mouthpiece and the falling movement produced during the positive pressure phase has a component acting in a desired transporting direction of the sheet.
REFERENCES:
patent: 3764133 (1973-10-01), Gray
patent: 3994488 (1976-11-01), Takenaka
patent: 4351518 (1982-09-01), Stievenart
Gentischer Josef
Illig Egon
Schmutz Wolfgang
Agfa-Gevaert Aktiengesellschaft
Schacher Richard A,.
Striker Michael J.
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