Roll forming and punching machine for metal sheet material

Details Roll forming and punching machine for metal sheet material Roll forming and punching machine for metal sheet material

2008-03-11

2008-03-11

Crane, Daniel C (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

C072S181000, C083S328000

Reexamination Certificate

active

11291842

ABSTRACT:
A punching machine installed in the machine base of a roller shape forming machine in a metal working system and controlled to punch holes on a metal sheet material being delivered through the roller shape forming machine during operation of the roller shape forming machine. The punching action, i.e., the cycling of the closing and opening actions of the punch mold of the punching machine is set to match with the delivering speed of the metal sheet material in the roller shape forming machine so that the punching operation of the punching machine is continued during processing operation of the roller shape forming machine.

REFERENCES:
patent: 2406808 (1946-09-01), Conner
patent: 3264920 (1966-08-01), Hallden
patent: 3296910 (1967-01-01), Haskin, Jr. et al.
patent: 3861260 (1975-01-01), Kesten et al.
patent: 4420998 (1983-12-01), Tokuno et al.
patent: 4471641 (1984-09-01), Mitchell
patent: 4485713 (1984-12-01), Dotta

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