Changyou Li, Fangjing Chen
In order to solve the problem of abrupt acceleration in the starting process of microwire winding machine, an improved s-curve acceleration and deceleration system was applied to winding control system. Analysis of stepping motor's torque-frequency characteristic curve, the frequency according to the S-shaped acceleration and deceleration curve drive motor, angular acceleration and torque adapt. Firstly, the traditional seven-section s-curve acceleration and deceleration mathematical model is studied. On this basis, the Logistic function is used to improve the s-curve acceleration and deceleration calculation method for the winding machine control system. The experiment verifies that the STM32 controller is used in the winding experiment platform. The traditional method and the improved method are tested respectively. The results show that the improved s-shaped acceleration and deceleration control effect is more stable under the condition of 20r/s high-speed winding, This ensures the successful start of high speed winding operation of microwire.
Stepping Motor; Winder; S-Curve Acceleration; STM32;