Drive method of winder

Details Drive method of winder Drive method of winder

1987-07-13

1988-08-23

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 18A, 242 18DD, 242 36, 242 45, B65H 5400, B65H 5900, B65H 67048

Patent

active

047655526

ABSTRACT:
A drive method for the winding of a yarn wherein the yarn is wound on a bobbin holder and into a yarn package by contacting a contact roller with the package and controlling the number of rotations of the contact roller or tension of the yarn so as to be a predetermined value. When the contact roller is driven by an induction motor and also the contact roller is driven in pressing contact with the package by the induction motor, the number of rotations of the contact roller is given by the following equation: N=n1-(K.multidot.m (n0-n1)/T1), wherein the N indicates the number of rotations (r.p.m.) of the contact roller with which the contact roller is operated in pressing contact with the bobbin holder, the n0 indicates the number of rotations (r.p.m.) which is synchronized to the power frequency of the motor driving the contact roller, the n1 indicates the number of rotations (r.p.m.) of the motor with which only the contact roller is driven, the T1 indicates a load torque (kg cm) of the motor with which only the contact roller is driven, the m indicates the number of packages which are wound in contact with the contact roller, and the K is beween 0 and 1.5.

REFERENCES:
patent: 3536272 (1970-10-01), Ueyama
patent: 3717311 (1973-02-01), Smith
patent: 4069985 (1978-01-01), Lohest et al.
patent: 4307848 (1981-12-01), Barathieu
patent: 4458849 (1984-07-01), Miyake et al.
patent: 4685629 (1987-08-01), Sugioka

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