Apparatus for controlling the tension of a wire fed to a winding

Details Apparatus for controlling the tension of a wire fed to a winding Apparatus for controlling the tension of a wire fed to a winding

1990-12-20

1993-08-31

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

226 24, 226 42, B65H 5900, B65H 2318

Patent

active

052401944

ABSTRACT:
An apparatus having a drive pulley around which the wire is rolled, driven by a motor coupled to a speed control element. The pulley is provided with a tachometer which generates a signal proportional to the speed of movement of the wire. An extensometer, coupled to the wire, generates a signal, representative of a predetermined, ideal tension in the wire, which is compared with a set value. The resulting signal is superimposed on the tachometer signal to generate a signal to control the control element. The apparatus may also be provided with a spring biased oscillating arm located after the extensometer that has a pulley on one end, over which the wire passes. Also, a coding wheel may be provided after the oscillating arm assembly which generates a signal proportional to the speed of the wire. The coding wheel signal is converted to a signal representative of a variation in tension of the wire. The preset ideal value is established by subtracting the converted signal from a second set value, corresponding to an ideal variation in the tension of the wire.

REFERENCES:
patent: 3713009 (1973-01-01), Poppinger et al.
patent: 4011976 (1977-03-01), Greer
patent: 4129238 (1978-12-01), Herd
patent: 4420123 (1983-12-01), Fox et al.
patent: 4480799 (1984-11-01), Yano et al.
patent: 4708301 (1987-11-01), Kataoka
patent: 5039027 (1991-08-01), Yanagihara et al.
patent: 5045134 (1991-09-01), Schenker et al.

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