| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for performing control of imparting desired tension to yarn to be wound, in a yarn winder including a yarn storage roller.SOLUTION: A yarn winder includes: a yarn storage roller 51; a tension measuring device; a threading arm 53; an arm drive unit 55; and a control unit 60. The yarn storage roller 51 stores the yarn on the surface by being rotationally driven by a roller drive part 52. The tension measuring device measures the tension of the yarn drawn from the yarn storage roller 51. The threading arm 53 is arranged on the downstream side in a yarn travelling direction of the yarn storage roller 51, and imparts tension to the yarn by coming into contact with the yarn. The arm drive unit 55 rotationally drives the threading arm 53. The control unit 60 adjusts a tension imparting amount by the threading arm 53 by performing feedback control of the arm drive unit 55 based on the measurement result of the tension measuring device. |
