Tension control device is an automatic control system that realizes constant tension or taper tension control. Its main function is to achieve synchronization between rollers and uniform control of winding and unwinding. With the high-speed and high-performance development of all roll materials equipment such as paper, film, fabric, rubber, foil, copper, etc., automatic control technology to maintain the tension of the roll material in motion is even more important.

Tension control device case:

In the picture above, the real-time tension signal of the strip is detected by the tension sensor and fed back to the control. The tension control device controller outputs a 0-10V control signal after PID processing. After power amplification, it is supplied to the magnetic powder clutch or brake to adjust its output torque (if executed When the mechanism uses pneumatic clutches and pneumatic brakes, they are supplied via an electric-to-pneumatic converter) to achieve stable tension control. In addition, it is recommended to control the speed of the winding motor so that the slip speed of the magnetic powder clutch is within a specified range to reduce the slip power.

Generally, when the material is unwinding and rewinding, the roll diameter of the roll will continue to change, and the tension of the roll will continue to change with the change of the roll diameter. In this case, if the tension of the coil is not controlled, the coil will wrinkle, relax and change in thickness. In severe cases, the coil may break. In addition, during the printing process, changes in tension can cause the paper to stretch or shrink, causing registration errors to occur immediately. Therefore, the tension of the web must be controlled. From tension sensors, tension controllers, signal amplifiers to power amplifier boards, we can provide the tension detection and control technology needed to improve equipment tension control when processing various roll materials such as paper, thread, film, and tape.