Forming machine and process for forming material therewith

Details Forming machine and process for forming material therewith Forming machine and process for forming material therewith

1992-03-05

1993-03-23

Spruill, Robert L.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

723552, 72407, B21J 912

Patent

active

051953498

ABSTRACT:
This invention relates to a forming machine used for full enclosed die forming etc. The forming machine of this invention consists of inserting a punch into at least one of a pair of dies disposed to face each other, supporting the die having the punch inserted therein by one end of a ring member accommodated in a holder, and disposing the other end of the ring member within a cylinder chamber formed within the holder; the above ring member has a piston member disposed within it, the above punch is supported by one end of the piston member, and the other end of the piston member is disposed in the above cylinder chamber formed within the holder or a cylinder chamber communicated with the holder. In the forming machine of the present invention, for example when a slide moves down, the upper die, lower die and ring member move down, and this lowering movement of the ring member pushes hydraulic fluid from the cylinder chamber into the cylinder chambers having the piston members disposed, thereby moving the piston members upward and the lower punch upward as well.

REFERENCES:
patent: 4653310 (1987-03-01), Urata et al.
patent: 4914938 (1990-04-01), Ishinaga
patent: 4918970 (1990-04-01), Ishinaga
patent: 4977773 (1990-12-01), Mito et al.

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