Metal deforming – With use of control means energized in response to activator... – Including plural sensors or sensor responsive to comparison...
Patent
1989-03-23
1990-08-14
Crane, Daniel C.
Metal deforming
With use of control means energized in response to activator...
Including plural sensors or sensor responsive to comparison...
72289, 250211K, 250237G, B21C 112
Patent
active
049476653
ABSTRACT:
An apparatus is disclosed for drawing a length of wire through a die and for supplying the wire to a using station wherein the apparatus utilizes a mechanical variable-speed drive mechanism and a sensing arm for sensing the error between the consumption and feeding rates of the wire and integrating the same. An electromechanical apparatus couples the sensing arm to the variable-speed drive so that the full range of drive ratios of the variable-speed mechanical drive mechanism can be utilized without the occurrence of a pull-back force at the wire. The mechanical pivoting of the sensing arm is translated to an electrical signal by way of the electromechanical apparatus which incorporates a plunger for oscillatory motion in response to the pivoting of the compensator arm. An electrical device is sensitive to the displacement of the plunger in a manner to provide a signal having a linear relationship to the magnitude of the displacement by the plunger caused by its oscillatory movement. The electrical device is not in direct physical contact with the plunger, thereby providing a friction free transition of mechanical movement of the plunger to an electrical signal.
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Rexnord, Milwaukee, Wisc., "Duralon Composite Bearings, Smooth, Accurate, Durable", 1987.
Alcock Richard A.
Alcock Scott A.
Yankaitis Michael J.
Crane Daniel C.
Rockford Manufacturing Group, Inc.
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