| 摘要 |
A device for controlling the feed of a yarn (2) to a textile machine (3) operating intermittently on said yarn, there being provided means (16) to sense the tension of the Figure (2) and means (5, 12, 13) for measuring and modifying its feed speed, all connected to control and regulator means for said tension and speed parameters, which continuously measure the values of both said parameters during the feed of the yarn (2) to the textile machine (3) so as to act on a rotary member (5) in order to modify the tension of the yarn (2) when necessary; the rotary member (5) is movable in a controlled manner in the two opposing directions of rotation to feed the yarn to the textile machine or to rewind it in order to prevent its accumulation in correspondence with said machine (3), the tension of the yarn fed or rewound being maintained at constant values (T, R).
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