Metal deforming – By plural tool-couples – With means to feed work between plural tool stations
Patent
1998-03-23
1999-05-04
Crane, Daniel C.
Metal deforming
By plural tool-couples
With means to feed work between plural tool stations
7240511, 7240501, 1986211, B21D 4305
Patent
active
058991093
ABSTRACT:
A die transfer system that includes a lower die, an upper die carried for reciprocal movement toward and away from the lower die to perform at least one operation on a workpiece positioned therebetween, and a conveyor for sequentially conveying workpieces between the dies. The conveyor includes a pair of elongated transfer bars parallel to each other and to the direction of movement of workpieces through the dies. Each transfer bar includes hands for engaging and carrying the workpieces. A pair of transfer drives are each operatively coupled to an associated one of the transfer bars for moving the transfer bars longitudinally parallel to each other independently of each other and out of phase with each other. A workpiece infeed conveyor is disposed adjacent to one end of a first of the transfer bars for feeding workpieces to the first transfer bar. A workpiece outfeed conveyor is disposed adjacent to the same end of the second of the transfer bars for receiving workpieces from the end of the second transfer bar. A transfer conveyor is disposed adjacent to the other ends of the first and second transfer bars for transferring workpieces from the second end of the first transfer bar to the second end of the second transfer bar. In this way, workpieces are conveyed by the first transfer bar from the infeed conveyor to the transfer conveyor, then by the transfer conveyor to the second transfer bar, and then by the second transfer bar to the outfeed conveyor.
REFERENCES:
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patent: 4449390 (1984-05-01), Pontini
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patent: 5136874 (1992-08-01), Fisch
patent: 5390525 (1995-02-01), Fisch
patent: 5680787 (1997-10-01), Fisch
Crane Daniel C.
Rapindex Incorporated
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