Backlash reduction system for transfer feed press rail stands

Details Backlash reduction system for transfer feed press rail stands Backlash reduction system for transfer feed press rail stands

1990-10-22

1992-01-21

Crane, Daniel C.

Metal deforming

By plural tool-couples

With means to feed work between plural tool stations

198621, B21D 4305

Patent

active

050818600

ABSTRACT:
A system for reducing looseness and backlash generally associated with transfer feed press feed systems that includes a driven tensioning device that exerts continuous tension on the drive system to ensure positive, slip-free meshing of the drive components. The tensioning device includes a tensioning sprocket that is coupled to a sprocket of the driven system by a chain or the like. An actuator positions the tensioning sprocket to maintain tension on the chain, and, therefore, the drive system. An additional tensioning device, such as a spring-biased sprocket, is also positioned against the chain to prevent any looseness from developing during operation.

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patent: 4630461 (1986-12-01), Votava
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patent: 4693361 (1987-09-01), Baba
patent: 4785657 (1988-11-01), Votava

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