Production method of a spinning ring for a ring spinning machine

Details Production method of a spinning ring for a ring spinning machine Production method of a spinning ring for a ring spinning machine

1997-04-17

2000-03-21

Bryant, David P.

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

72 91, 72105, B23P 1304

Patent

active

060387580

ABSTRACT:
A spinning ring for a ring spinning machine is produced by clamping and pressing a ring-like steel blank by a mandrel and a forming roll, pressing and deforming the blank by cold rolling, causing the blank to fluidize in, and fill, the gap between both machining surfaces of the forming roll and the mandrel, and rolling the blank in the direction of thickness and so expanding its diameter into a predetermined size. To prevent crack, a ring-like blank whose portion having a large machining quantity is in advance machined to a smaller thickness by machining means such as forging, cutting and rolling is preferably used. Since this production method does not essentially remove the material, the yield of the material is high, and because the number of production steps is less, the production cost can be reduced. Because the spinning ring for a ring spinning machine so produced is free from scratch and cutting trace on the surface of the product, particularly on the inner peripheral surface of a ring flange coming into contact with a traveller, the wear resistance of the traveller can be improved. Further, because a cut portion of a metal flow does not develop on the running surface of the traveller, the fatigue resistance of the spinning ring can be improved.

REFERENCES:
patent: 2128614 (1938-08-01), Kobayashi
patent: 4016739 (1977-04-01), Lapin et al.
patent: 4869088 (1989-09-01), Kadotani
H. Mikiyo, Japan Abstract 63 249724, Production of composite ring for spinning, Oct. 17, 1988.
I. Chihiro, Japan Abstract 06 335832, Housing for Lathe, Dec. 6, 1994.

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