Roller mechanism for forming helical shapes

Details Roller mechanism for forming helical shapes Roller mechanism for forming helical shapes

1985-02-12

1985-10-15

Combs, E. Michael

Metal deforming

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

To form helical coil or tube

72145, B21F 302

Patent

active

045466319

ABSTRACT:
A roller mechanism and method for forming helical shaped structures from a feed wire or rod, wherein the feed wire is drawn through a plurality of staggered forming rollers by rotation of the rollers, while the wire is also being rotated about its own axis so as to form the desired helical shaped product. The mechanism includes a support frame and at least four lower fixed position driven rollers and at least five upper idler rollers having adjustable positions relative to the lower rollers rotatably mounted in the frame. The lower rollers usually have a roughened or grooved surface to facilitate drawing the feed wire through the staggered forming rollers. If desired, the feed wire can be pulled off a rotating supply reel by a pair of guiding rollers and then passed through the forming rollers to provide the desired helical shaped product.

REFERENCES:
patent: 1835198 (1931-12-01), Abramsen
patent: 2749962 (1956-06-01), Kitselman
patent: 2769478 (1956-11-01), Schane
patent: 4287743 (1981-09-01), Hantschk

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