Textiles: knitting – United needle machines – Straight
Patent
1995-04-24
1996-06-11
Calvert, John J.
Textiles: knitting
United needle machines
Straight
66212, 139105, D04B 2710, D04B 2722
Patent
active
055244610
ABSTRACT:
A yarn feed gearbox control system for controlling the let-off speed of a yarn feed gearbox. The control system is adapted for use with a warp knitting machine having a main shaft and a gearbox operative to control the feed rate of yarn delivery from a yarn beam, the gearbox including an adjustment spindle extending therefrom. The control system includes a yarn feed rate detector which measures the rate of yarn delivery from the beam, a computer which receives yarn feed rate signals from the yarn feed rate detector and generates control signals corresponding thereto, and a control device which controls the speed of rotation of the spindle in accordance with the control signals. The control system may be further provided with a main shaft detector to measure the speed of rotation of the main shaft of the knitting machine. The control system may also be provided with a beam revolution detector to generate a revolution signal corresponding to each revolution of the yarn beam. Signals from the beam revolution detector may be utilized to control the actuation of an alarm and/or to stop the knitting machine. The yarn feed rate detector preferably includes a two roller assembly.
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Manual For Mayer Knitting Machine, RE4-6,N (1965) pp. 22-33.
Kyodo Denshi Kogyo Co., Ltd.; Electronic Yarn Control Device Instruction Manual. Admitted Prior Art.
Moghaddassi Majid N.
Nielsen J. Arne
Calvert John J.
Techno-Craft, Inc.
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