Press brake

Details Press brake Press brake

1985-07-08

1986-05-27

Gilden, Leon

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72448, 72450, B21D 501

Patent

active

045907846

ABSTRACT:
A press brake has a press cradle, which has an upper die and which is provided across two frames, and a ram, which has a lower die, and which moves up and down to perform a bending operation on metal sheets. The upper ends of the beams attached by pins at the lower ends to the ram are coupled by pins to ends of rotary links which are connected by pins to the press cradle. The rotary links are rotated in a fixed path by hydraulic cylinders rotatably provided on both frames to raise and lower the ram via the beams.

REFERENCES:
patent: 3552183 (1971-01-01), Heitman
patent: 3587286 (1971-06-01), Fritsch
patent: 3587288 (1971-06-01), Sharman
patent: 3766771 (1973-10-01), Spaechner
patent: 3859838 (1975-01-01), Karsnal
patent: 4411148 (1983-10-01), Aschauer

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