Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1994-02-03
1995-04-25
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
B65G 2700
Patent
active
054091012
ABSTRACT:
An elongate vibratory conveyor for moving products is reciprocated by driving a motor with a cyclical nonuniform motion by supplying power nonuniformly to the motor. The conveyor is reciprocated in opposite lengthwise directions, without any substantial movement of the conveyor normal to the lengthwise direction. Motor control circuitry variably drives the motor automatically in response to feedback from a sensor which senses a motion related to the conveyor motion. The feedback signal is compared to a selected one of a set of predetermined different motion patterns, and the motor is driven by supplying power nonuniformly thereto in accordance with the selected motion pattern. The conveyor system readily enables instantaneous reversibility of the product flow at the same average velocity, and instantaneous variable control for modifying the motion of the conveyor to obtain either different desired average product velocities or the same average product velocity at different conveyor inclinations or reciprocating frequencies, all irrespective of changes in conveyor loading or resistance to slip of the products conveyed. Separate motors driving either the same conveyor or separate conveyors are driven with cyclical nonuniform motions in synchronization by synchronizing their respective power supplies.
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Ahmed Gulzar
Bausch James F.
Branch Gregory L.
Stupak, Jr. Joseph J.
Symer Richard T.
Allen Fruit Co., Inc.
Dayoan D. Glenn
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