Straightening machine

Details Straightening machine Straightening machine

1975-03-21

1976-01-06

Mehr, Milton S.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

B21D 302

Patent

active

039303926

ABSTRACT:
A machine is provided to straighten both the stem and the head of flanged stem workpieces such as poppet valves by rolling the stem of the workpiece between a rotary die and an arcuate stationary die. The flange of the workpiece being larger than the stem overlaps the rotary second die to have a first path of a contact portion of the flange. A straightening roller is journalled for orbiting movement on a rotary straightening member and the straightening roller has a contact area movable in a second path intersecting the first path to engage the flange and bend the workpiece cyclically. This bending effects a straightening of such flange. The above description is merely one form of the invention and is not to be construed as limiting on the scope of the invention.

REFERENCES:
patent: 1109662 (1914-09-01), Cavanagh, Jr.
patent: 2550842 (1951-05-01), McClure et al.
patent: 2860686 (1958-11-01), Frank et al.

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