Device for producing metal rings

Details Device for producing metal rings Device for producing metal rings

1994-08-04

1996-06-04

Jones, David

Metal deforming

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

With feeding of discrete articles or orienting of work...

72169, 72166, 72134, 72107, B21B 3902, B21D 514, B21D 910

Patent

active

055222455

ABSTRACT:
A metal ring producing device comprises a rigid roller and a resilient roller. The resilient roller has an outer cylindrical portion covered with an elastic annular member. The resilient roller is positioned near the rigid roller so that a metal plate member can be inserted between the resilient and rigid rollers. The resilient roller is rotated in a given direction. The elastic annular member is formed with equally spaced recesses. Each recess has a concave bottom surface which is shaped in conformity with an outer surface of the metal ring produced around the rigid roller. A ring removing mechanism is further employed which pushes one end of the metal ring and thus thrusts the metal ring off the rigid roller when the resilient roller stops at a position wherein one of the recesses is registered with the rigid roller.

REFERENCES:
patent: 2043665 (1936-06-01), Iversen et al.
patent: 2686442 (1954-08-01), Wilson
patent: 2886990 (1959-05-01), Bregi
patent: 3205689 (1965-09-01), Joseph
patent: 3431622 (1969-03-01), Amthor et al.
patent: 3842473 (1974-10-01), Couper
patent: 4730477 (1988-03-01), Redman
patent: 4777816 (1988-10-01), Inoue
patent: 5228322 (1993-07-01), Del Fabro et al.
"Press Working Handbook", Maruzen Co., Ltd., Oct. 1975.

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