Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By longitudinally respacing successive articles in stream
Patent
1988-11-04
1990-08-07
Spar, Robert J.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By longitudinally respacing successive articles in stream
1984634, 1988361, B65G 4731
Patent
active
049459767
ABSTRACT:
High-speed, lugged chain board loading apparatus is described. The apparatus includes a generally horizontal feed conveyor that defines a planar board feed zone, a pick off conveyor having projecting lugs and including an upwardly inclined run that extends across the feed zone, a receiving conveyor for receiving each board at the upper end of the run and an arrester including an adjustably positionable eccentric that moves laterally spaced stop arms synchronously with the movement of the lugs along the inclined run. In the preferred embodiment, the pick off and receiving conveyors are driven at approximately twice the speed of the feed conveyor. The conveyors include endless link chains that travel in friction inhibiting races. In an intermediate position, the free ends of the stop arms extend rearward of the inclined run to hold off the sheet of boards supported by the feed conveyor. In a forward position, the stop arms' free ends extend forwardly of the run to permit the foremost board to picked off by the pick off conveyor. In a rearward position, which is selectable by actuation of a cylinder that normally biases the stop arms to follow the eccentric, the stop arms' free ends clear the projecting lugs of the pick off conveyor. Laterally spaced sheet stabilizers cooperate with the feed conveyor to ensure that boards within the feed zone are in a planar array as they approach the pick off conveyor. A transition zone of the pick off conveyor is provided in the vicinity of the receiving conveyor to ensure the smooth transfer of individual boards thereto for downstream processing by conventional board handling equipment.
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Dayoan D. Glenn
Harvey Industries, Inc.
Spar Robert J.
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