Press working machine with a vertically movable lower mold and a

Details Press working machine with a vertically movable lower mold and a Press working machine with a vertically movable lower mold and a

1996-02-27

1998-01-20

Jones, David

Metal deforming

By plural tool-couples

With means to feed work between plural tool stations

7240501, 72421, 724521, B21J 1308

Patent

active

057091234

ABSTRACT:
A press working machine includes a lower mold that is vertically movable between a first position for exchanging the lower mold, a second position for exchanging a workpiece, a third position for placing and displacing the workpiece on and from the lower mold, and a fourth position for pressing the workpiece between an upper mold and the lower mold. The machine further includes a servo motor and an eccentric cam for vertically moving the lower mold. A workpiece feed bar is moved only in the horizontal direction, whereby the structure of a feed bar horizontal mover is extremely simplified and the overall press working machine is also simplified in structure.

REFERENCES:
patent: 3364723 (1968-01-01), Gartside
patent: 5148697 (1992-09-01), Shiraishi et al.
patent: 5159827 (1992-11-01), Shiraishi et al.
patent: 5307666 (1994-05-01), Bianchi
patent: 5383348 (1995-01-01), Michael et al.

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