The Research And Development Of Overfeeding Motor Driver For Winding

Mechanical drive in cluster control mode is often applied to provide power for yarn winding system in past times. This method shows inefficiency and bad control. In order to improve winding speed, single-spindle driving method becomes more and more popular. Single-spindle driving mode can realize high-speed and high-quality winding by using independent motor to achieve functions such as winding, cross traverse and tension control. Yarn tension control will directly impact yarn quality and subsequent handling processing. The overfeeding motor driver in this paper is used to control yarn tension in the winding process.This paper firstly analyzes the general method of yarn tension control, summarizes the features of tension-adjusting gear in textile industry, and compares the advantages and disadvantages of current tension sensors. And the proper tension sensor is selected, which makes the necessary preparations for the research of yarn tension control and motor driver.Secondly, the principle of overfeeding winding control system is analyzed in detailed. The factors influence the yarn tension is discussed, and the mathematical models of yarn tension are established. The overfeeding motor is the core of system; this paper employs square wave drive and sine wave drive program to control the motor. Based on the analysis of the principle, the simulation models are established to carry out contrastive research on two control solutions.Finally, this paper designs the hardware circuit and software flow, and builds experimental platform. The experiments show that the two solutions can get good control effect. The sine wave drive solution is a little more complex, but can achieve small torque ripple and low noise. The square wave drive solution is easy to realize and has advantages in high speed operation.