Press machine structure

Details Press machine structure Press machine structure

1982-12-16

1984-11-20

Crane, Daniel C.

Metal deforming

With cutting

By composite tool

72326, 72465, 72351, B21D 2818, B21D 2826

Patent

active

044831706

ABSTRACT:
A press machine structure wherein a work stock is set on a lower die having a die, and an upper die engageable with the lower die is lowered so as to press the work stock against the lower die for deforming the same, while a pad presses and fixes the portion of the work stock at the peripheral edge of the die as the upper die effects working and at the same time, the punch statically contacts with the work stock, and then, a push rod provided to the upper die presses the punch to project out and face to the die for punching the work stock, thereby allowing bending and punching to be continuously effected.

REFERENCES:
patent: 1904920 (1933-04-01), Hothersall
patent: 2251433 (1941-08-01), Wareham
patent: 2312749 (1943-03-01), Bullock
patent: 2899922 (1959-08-01), Wheeler
patent: 3252315 (1966-05-01), Muench
patent: 3336117 (1967-08-01), Borello
patent: 3395562 (1968-08-01), Bushi
patent: 4309888 (1982-01-01), Miller et al.

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