Spring manufacturing apparatus

Details Spring manufacturing apparatus Spring manufacturing apparatus

1997-08-06

1998-11-24

Hail, III, Joseph J.

Metal deforming

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

To form helical coil or tube

72135, B21F 304, B21F 302

Patent

active

058393129

ABSTRACT:
A wire-grip mechanism 60 for gripping a wire W, is arranged rotatable in accordance with a wire guide 70 which feeds the wire W. By rotating a guide mechanism while feed rollers and wire grip mechanism 60 are gripping the wire W, the wire W positioned between the feed rollers and grip mechanism is twisted, and the direction of the wire W fed from the wire guide 70 is changed.

REFERENCES:
patent: 4825678 (1989-05-01), Post
patent: 4934165 (1990-06-01), Philpost et al.
patent: 5259226 (1993-11-01), Itaya
patent: 5285669 (1994-02-01), Itaya
patent: 5363681 (1994-11-01), Speck et al.
patent: 5452598 (1995-09-01), Cheng
Handbuch Federn, Verlag Technik Berlin, 1988, pp. 60-61, Fig. 3.2.
"Dictionary of Metal Material Technical Term with Explanatory Diagram", by Nikkan Kogyo Shinbun Sha, Nov. 20, 1988.

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