Indexing conveyer for a die transfer system having countercyclic

Details Indexing conveyer for a die transfer system having countercyclic Indexing conveyer for a die transfer system having countercyclic

1997-01-24

1999-05-25

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

059061316

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 arrangement for sequentially conveying workpieces between the dies. The conveyor arrangement includes a hollow tubular transfer bar having at least one hand for engaging workpieces. The transfer bar is operatively coupled to an arrangement for reciprocating the transfer bar in at least one direction relative to the lower die. A mass is resiliently suspended within the transfer bar for vibrating with the transfer bar out of phase to vibrations in the transfer bar, and thereby countercyclically damping vibrations in the transfer bar.

REFERENCES:
patent: 4198845 (1980-04-01), Sofy
patent: 4651866 (1987-03-01), Imanishi
patent: 5035134 (1991-07-01), Fisch
patent: 5081860 (1992-01-01), Rante
patent: 5136874 (1992-08-01), Fisch
patent: 5390525 (1995-02-01), Fisch

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