Sheet feeding mechanism

Details Sheet feeding mechanism Sheet feeding mechanism

1975-05-30

1976-11-30

Saifer, Robert W.

Sheet feeding or delivering

Feeding

Separators

271102, 271108, 271132, B65H 312

Patent

active

039944905

ABSTRACT:
A mechanism for feeding blanks or corrugated cardboard and the like into a printing and container forming machine. The feeding mechanism includes a perforated suction head for moving individual sheets from a stack of sheets into the machine. The suction head is mounted on a hollow reciprocating shuttle. A valve connects the shuttle to an evacuator and is actuable by a cam contoured such that the valve may be actuated each time the suction head cycles, during alternate suction head cycles or may remain inactive by varying the angular orientation of the cam and the cam follower coupled to the valve. In an alternate embodiment these variations of vacuum application to suction head cycling are provided by a valve having rotating members wherein the relative speed of the members may be adjusted to provide the control functions.

REFERENCES:
patent: 2331533 (1943-10-01), Bishop
patent: 2422783 (1947-06-01), Jacobson
patent: 2956804 (1960-10-01), Ridenour
patent: 3421753 (1969-01-01), Staples, Jr.

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