Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1989-12-14
1991-02-05
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 18DD, 242 43R, 242 43R, 242 45, B65H 5402, B65H 5428
Patent
active
049897985
ABSTRACT:
A high-speed precision winder for winding a running yarn onto a package tube to form a cross yarn package, including a spindle for rotating the tube about a spindle axis, a yarn traversing mechanism for guiding running yarn received along an infeed path back and forth across a traverse zone, a bail roll disposed in rolling contact with the peripheral surface of the yarn package being wound, apparatus for controlling tension of the infeed yarn, and a control system for continuously regulating operation of the winder during formation of the package. The control system includes three separate variable speed drive motors and respective associated motor control circuits forming a spindle drive, a traversing means drive, and a down pressure drive providing three independent motor systems which are separately controllable. A load cell structure is associated with the bail roll and output signals from the load cell and predetermined set processing condition data applied to a microprocessor provide control signals to activate the motors to control the relative positions of the bail roll and package tube and regulate the spindle drive and traversing mechanism drive to maintain a desired yarn density and tension throughout winding of the package.
REFERENCES:
patent: 2463773 (1949-03-01), Jencks
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patent: 2972450 (1961-02-01), Brierley
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patent: 3823886 (1974-07-01), Siegenthaler
patent: 4106710 (1978-08-01), Schippers et al.
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patent: 4349160 (1982-09-01), Niederer
patent: 4561603 (1985-12-01), Schippers et al.
Appalachian Electronic Instruments, Inc.
Gilreath Stanley N.
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