基于无刷直流电机的纱线恒张力控制系统设计

Design of Yarn Constant Tension Control System Based on Brushless DC Motor

为提高络筒的成纱质量,研究设计出基于无刷直流电机的络筒机纱线恒张力控制系统。采用AT89S52单片机作为系统微控制器,系统根据所加工纱线的工艺要求,预设槽筒电机的速度并启动运行;采用张力传感器和霍尔传感器实时检测纱线张力和槽筒转速并反馈给微控制器,微控制器根据所接收到信号对槽筒电机的转速进行实时调节,从而控制络筒机纱线张力使之保持恒定,并实时显示纱线张力和槽筒电机转速,达到随时监控和调整纱线张力的目的。结果表明:当纱线张力发生变化时,槽筒电机的转速会随之调整,从而保证纱线张力恒定,设计达到了预期的控制要求,具有较好的实用价值。

In the winding process,a key factor to determine the quality of the bobbin is whether the tension of the yarn is constant during winding,and the quality of the bobbin yarn will directly affect the product quality of the subsequent procedure.In order to improve the yarn quality of winding,a yarn constant tension control system of winder was designed based on brushless DC motor.This design used AT89S52 single-chip computer as the system microcontroller.According to the technological requirements of the yarn processing,the system preseted the speed of the grooved drum motor and started to run.The tension sensor and Hall sensor were used to detect the yarn tension and the rotating speed of the grooving drum in real time and feedback to the microcontroller.The microcontroller adjusted the rotating speed of the grooving drum motor in real time according to the received signal,so as to control the yarn tension of the winder to keep it constant,and display the yarn tension and the rotating speed of the grooving drum motor in real time,and achieve the purpose of monitoring and adjusting yarn tension at any time.The experimental result showed that:when the tension of yarn change,the rotating speed of the grooving motor will be adjusted accordingly,so as to ensure the constant yarn tension,and meet the expected control requirements.