High speed two travels thread rolling machine

Details High speed two travels thread rolling machine High speed two travels thread rolling machine

1980-07-17

1983-01-25

Larson, Lowell A.

Metal deforming

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

During rotation of work

72103, 72424, B21H 302

Patent

active

043696449

ABSTRACT:
Disclosed herein is a new mechanism for making screws. It consists of two stationary segmented dies and an intermediate rotary die and by means of rotation, the rotary die threads working pieces which become screws. It includes a pneumatic feeding holder so that working pieces can be fed into the rotary die accurately and quickly and with the action of double die dual path, a high speed mass production is achieved.

REFERENCES:
patent: 329737 (1885-11-01), Harvey
patent: 1780608 (1930-11-01), Swanson
patent: 2662430 (1953-12-01), Fray
patent: 2727255 (1955-12-01), Fray
patent: 2923186 (1960-02-01), Pierson
patent: 3028886 (1962-04-01), Drukker
patent: 3069754 (1962-12-01), Wahun
patent: 3691806 (1972-09-01), Hanzawa

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