Metal deforming – By plural tool-couples – With means to feed work between plural tool stations
Patent
1989-11-06
1991-07-30
Crane, Daniel C.
Metal deforming
By plural tool-couples
With means to feed work between plural tool stations
72422, 1988039, 198817, B21D 4312
Patent
active
050351346
ABSTRACT:
A transfer die system that includes a fixed lower die, an upper die carried for reciprocal vertical movement toward and away from the lower die to perform operations on workpieces positioned between the dies, and a conveyor for feeding workpieces in sequence between the upper and lower dies. The upper and lower dies define a plurality of die stations, including a workpiece load station at the upstream end of the conveyor, a workpiece unload station at the downstream end of the conveyor, and at least one intermediate station for performing a desired operation on workpieces passing through the die. An improved conveyor that characterizes the present invention comprises an endless loop conveyor that has a reach vertically positioned between the upper and lower dies. A plurality of hands are carried by the conveyor at positions spaced from each other lengthwise of the conveyor by a distance corresponding to separation between the die stations, such that at least one hand is positioned to engage the workpiece at each of the stations. A drive is coupled to the conveyor for indexing the conveyor and workpieces between the upper and lower dies.
REFERENCES:
patent: 2295852 (1942-09-01), LeJeune
patent: 3131457 (1964-05-01), Correll
patent: 3229739 (1966-01-01), Ellis
patent: 4874081 (1989-10-01), Kondo
Crane Daniel C.
Rapindex Incorporated
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