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Control system for yarn feed gearbox

  • US 5,524,461 A
  • Filed: 04/24/1995
  • Issued: 06/11/1996
  • Est. Priority Date: 04/24/1995
  • Status: Expired due to Fees
First Claim
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1. A yarn feed gearbox control system for controlling a let-off speed of a yarn feed gearbox, the gearbox operative to control a rate of yarn delivery from a yarn beam and including an adjustment spindle extending therefrom, said control system for use with a warp knitting machine having a main shaft and comprising:

  • a) a yarn feed rate detector operative to measure the rate of yarn delivery from the beam and generate yarn feed rate signals;

    b) a computer operative to receive yarn feed rate signals from said yarn feed rate detector and to generate electrical control signals corresponding to said yarn feed rate signals;

    c) a control device operative to control a speed rotation of the adjustment spindle in accordance with said control signals; and

    d) a beam revolution detector operative to generate a revolution signal corresponding to each revolution of the yarn beam.

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