Progressive roll bender

Details Progressive roll bender Progressive roll bender

1988-09-16

1990-03-27

Crane, Daniel C.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72166, 72173, 72217, 72388, B21D 7024, B21D 708

Patent

active

049109847

ABSTRACT:
A machine for bending tubular or rod stock into complex, compound shapes has three driven synchronized rollers together with a single shaping roller also synchronously driven. The shaping roller is mounted on an arm pivotally mounted about the shaft of the downstream one of the three rollers and its movements are precisely controlled and effected by a single hydraulic cylinder. The control valve for the valve is entirely operated by a signal supplied from a omputer which has been pre-programmed to effect the formation of the particular shape or shapes desired.

REFERENCES:
patent: 1387934 (1921-08-01), Montieth
patent: 1602399 (1926-10-01), Erman
patent: 1874280 (1932-08-01), Gibbons
patent: 2279197 (1942-04-01), Hoell
patent: 3373587 (1968-03-01), Shubin et al.
patent: 3563283 (1971-02-01), Tufertshiev
patent: 4020669 (1977-05-01), Gott et al.
patent: 4117702 (1978-10-01), Foster
patent: 4232540 (1980-11-01), Cain
patent: 4280350 (1981-07-01), King

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