| 摘要 |
A yarn feeding device 1 comprises a rotatable drum 4, a yarn-braking unit 12 through which the yarn is guided at a certain wrapping angle, and a moveable detector element 14 lying against the yarn for surveying the tension thereof and for detecting a possible yarn breakage.
<??>For enhancing the dynamic behaviour of the detecting element and for reducing erroneous fault indication as generated by the detector element 14, said detector element 14 is tensioned against the yarn such that the wrapping angle of the yarn passing the yarn-braking unit 12 is increased when the yarn tension decreases.
|
