Transducer Torque Control System of the Web Wind-up Tension in Gravure Press

摘要

The correct math model is the basis and the guarantee for the design of the control system. In the paper, the tension control system with torque control is developed. It improves the defect of tension control system with speed control, and the math model of web wind-up control is established in each link. It includes the real-time model of moment of inertia and the rolling diameter, the dynamic model of web wind-up, tension model, the vibrating model for detecting and the frequency control model by vector. The PID controller of wind-up tension system has the good control efficiency, and the performance in torque mode is better than it in speed mode. The tension control system with torque control provides a theoretical basis for the more precise tension control of the gravure press.