Patent ID: 7896280

Claim:
A method for controlling the feed of a yarn to a textile machine, comprising: feeding the yarn to the textile machine operating intermittently on said yarn ( 2 ) for successive discrete periods of time interrupted by periods in which the yarn is at rest and is not used, said feeding comprising i) measuring tension of the yarn ( 2 ) fed to the textile machine and unwound from a bobbin (B), ii) effecting an intervention, as a result of this measurement, on the yarn ( 2 ) to obtain a feed tension (T) that is a constant feed tension (T), and iii) with a yarn take-up device located upstream of a yarn feed regulator, providing an automatic take-up on the yarn each time the yarn is not withdrawn or is released by the textile machine ( 3 ), said take-up being effected in such a manner as to achieve constant yarn tension (R), said take-up of the yarn ( 2 ) being activated automatically when, after sensing a change in the tension of the yarn ( 2 ) and then intervening to maintain the feed tension (T) constant, a current measured tension value (M) is obtained which is less than a feed tension value (T), during take-up of the yarn ( 2 ) the yarn's take-up tension (R) being monitored and take-up being interrupted when the take-up tension reaches a predetermined value.