Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1989-11-17
1991-08-27
Olszewski, Robert P.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
198572, 198757, B65G 2732
Patent
active
050426435
ABSTRACT:
In an elliptic vibratory part-feeding device which includes a feeder bowl in which a spiral track is formed; a first spring for supporting the feeder bowl so as to be vibratile in a horizontal direction; a first electro-magnet for exciting the feeder bowl in the horizontal direction; a second spring for supporting the feeder bowl so as to be vibratile in a vertical direction; a second electro-magnet for exciting the feeder bowl in the vertical direction; an alternating electric power source; a phase-difference forming circuit through which voltages different from each other in phase are supplied to the first and second electro-magnet from the alternating electric power source; and a part-jamming detector when part-jamming is detected in the feeder bowl by the part-jamming detector, the feeding direction of the parts on the spiral track is reversed by the change-over or adjustment of the phase-difference forming circuit.
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Bidwell James R.
Olszewski Robert P.
Shinko Electric Co. Ltd.
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