In order to achieve a better effect of spandex yarn feeding in the active yarn delivery equipment,improve the cloth surface flatness and the corresponding elasticity,and improve the product quality,a new type of spandex yarn delivery device was developed.Its working principle is to detect and control the low tension yarn through the principle of mechanical lever,which can adjust different weight gear to control spandex yarn tension and effect.In addition,the new optical detection position adjustment makes the adjustment more simple and convenient.The device uses a new non-contact optical detection design.Through the improvement of the processing process,it can attain smaller output tension fluctuations and more stable performance,which can be applied to a variety of large,small circular knitting machine and other equipment.
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