Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1991-03-19
1991-12-31
Olszewski, Robert P.
Sheet feeding or delivering
Feeding
Separator and conveyor
271 96, 271108, B65H 514
Patent
active
050765647
ABSTRACT:
In the case of a sheet feeder comprising a suction head which is arranged over a rising table for a stack of sheets and bears at least one sucker able to be connected with a source of vacuum and with air synchronously in steps with the operation of the equipment, a cam predetermined such steps and, following the suction head, a sheet conveyor, it is possible to achieve a more precise operation and more gentle handling of the products by providing an air supply duct and a vacuum duct, which are associated with the at least one sucker provided, and alternately switched on and off by a switching valve arranged near the sucker. For its part, the valve is operated by a control valve, actuated by the cam.
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George Spiess GmbH
Olszewski Robert P.
Reiss Steven M.
Schindler Edwin D.
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