To reduce yarn breakage rates in spinning and increase production efficiency, we developed a detection device for spinning tension of the ring-spinning system by implementing the stress and displacement sensors with the yarn guide plate. The as-developed device receives data through signal acquisition system, and then the yarn tension at the thread guide and the displacement of the guide plate are obtained by solving the coupled physical-mathematical equations describing yarn tensions in twisting, ballooning, and winding processes, which gives the real-time dynamics. We found that the yarn tensions show periodical fluctuations along with the reciprocating movement of the yarn guide plate. In particular, the maximum tension at the initial winding stage has increased 12.6% when compared to the second winding stage, while the maximum tension at the third winding stage has increased 10.6% when compared to the second winding stage.

中文翻译：

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用于环锭细纱机断纱检测的纺纱张力分析新方法

为了降低纺纱断纱率，提高生产效率，我们开发了一种环锭纺纱系统的纺纱张力检测装置，通过在导纱板上安装应力和位移传感器。所开发的装置通过信号采集系统接收数据，然后通过求解描述加捻、鼓胀和卷绕过程中纱线张力的耦合物理数学方程，得到导纱器处的纱线张力和导板的位移，这给出了实时动态。我们发现纱线张力随着导纱板的往复运动呈现周期性波动。尤其是初卷阶段的最大张力比二次卷阶段增加了12.6%，