Metal deforming – By deflecting successively-presented portions of work during... – With feeding of discrete articles or orienting of work...
Patent
1977-06-24
1978-12-19
Combs, E. M.
Metal deforming
By deflecting successively-presented portions of work during...
With feeding of discrete articles or orienting of work...
72137, 72139, 72142, B21F 304, B21F 310
Patent
active
041300033
ABSTRACT:
In the automated manufacture of helical coils from sheet-metal blanks, each station of a rotatable set or carrousel of winding stations picks up a flat elongated blank from a stationary loader and securely grips and locks one end in an angled position against a slightly-tapered arbor whose subsequent rotation then causes the blank to become tightly wrapped helically about the arbor while retractable ironing plates stretch-form it and while a second locking mechanism positions the opposite end of the blank untl wrapping is completed. The single thrust of a shaped actuating rod causes a locking member to both position itself and move into a clamping relation with the one end of the blank and the arbor, and both the second locking mechanism and the ironing plates are of toggle-type constructions which enable them to hold securely until positively released. Arbor rotation, and operation of the second locking mechanism, are powered in response to motion of the carrousel relative to stationary structure, and fluid-powered actuators serve to drive the thrust rod and ironing plates under control of detectors responding to angular positions taken up by the carrousel.
REFERENCES:
patent: 458115 (1891-08-01), Thomson
patent: 1981950 (1934-11-01), Dodge
patent: 2165411 (1939-07-01), Peyton
patent: 3096806 (1963-07-01), Root
patent: 3959066 (1976-05-01), Miller et al.
Combs E. M.
Mrose James E.
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