Rollformer for variable width edge profiles

Details Rollformer for variable width edge profiles Rollformer for variable width edge profiles

1991-08-23

1992-11-17

Crane, Daniel C.

Metal deforming

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

By use of deflector arranged to bend work transversely of...

72247, B21D 508

Patent

active

051633116

ABSTRACT:
A progressive rollformer machine is readily adjustable, without removal of rolls or use of spacers, to produce sheet metal workpiece margin flanges of variable depth. The machine includes a gear train housing having perpendicularly extending spindle shafts and idler gear shafts, and two forming roll housing sections, with their rolls mounted outboard. One of these, conventionally fixed relative to the gear train housing, provides one reference line of forming. The other forming roll housing section provides a second reference line of forming--it may be positioned at a variable distance from the gear train housing, at a spacing adjustable by a screw drive. Tracking throughout all roll stations is made possible by using the adjustable-position forming roll housing first in line of flow, with supplemental tracking rolls mounted onto the ends of the spindle shafts.

REFERENCES:
patent: 851451 (1907-04-01), Steiber
patent: 1673787 (1928-06-01), Frahm
patent: 2176115 (1939-10-01), Yoder
patent: 3051214 (1962-08-01), Rutten
patent: 3595056 (1971-07-01), Hutton
patent: 3886779 (1975-06-01), McClain
patent: 3931725 (1976-01-01), Yon
patent: 4471641 (1984-09-01), Mitchell
patent: 5056348 (1991-10-01), Albrecht

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