Apparatus for level winding tubing

Details Apparatus for level winding tubing Apparatus for level winding tubing

1975-05-01

1976-09-07

Phillips, Charles E.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421584R, B65H 5728

Patent

active

039790843

ABSTRACT:
Level winding is accomplished by rotating a reel with sufficient torque to wind material on the reel while traversing the reel a predetermined precise fractional part of the width of the material wound for each increment of revolution of the reel so that the reel is traversed precisely the width of the material wound plus a precise space between adjacent turns, if desired, during each revolution of the reel. Pulses indicative of the extent of rotation of the reel are transformed, by dividing, into pulses indicative of both the extent of rotation of the reel and the desired distance between centers of adjacent turns of the material wound onto the reel. The pulses rotate a first synchrotransducer electrically connected to a second synchrotransducer which is driven in response to traverse of the reel. An error signal resulting from any non-synchronism of the synchrotransducers is used to operate a servo-valve which changes the rate of traverse in a direction to reduce the error signal.

REFERENCES:
patent: 3109606 (1963-11-01), Kubilos
patent: 3820729 (1974-06-01), Springer et al.
patent: 3822831 (1974-07-01), Marcum

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