Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-06-07
1991-09-10
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 45, 242150M, 242178, B65H 5400, B65H 5920
Patent
active
050466739
ABSTRACT:
A method and apparatus for winding yarn to produce a wound yarn package having a variable density profile. The variable density profile in the wound yarn is produced by variably tensioning the yarn during the winding process by an electrical apparatus which is responsive to a programmed control signal to provide variable tension on the yarn. The density profile thus produced is preferably a progessively variable density profile. In a preferred embodiment, the method is carried out with a precison winding machine with an electromagnetic tensioner. A controlled sequence of control signals is applied to the tensioner to provide a correspondingly varying tension on the yarn.
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Gilreath Stanley N.
Institute of Textile Technology
Kananen Ronald P.
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