How to improve the constant tension of the roll cloth

In order to improve the quality of the cloth roll, it is necessary to maintain the tension in the cloth basically constant during the winding process. Many designs use methods such as a single constant torque motor or a stepless speed regulation motor or even an electrical control box to control the tension. This is undoubtedly It will make the structure complicated, cost too high, and inconvenient to use and adjust. This paper proposes a mechanical constant tension cloth winding mechanism with a torque compensation mechanism. The winding torque can increase with the increase of the diameter of the cloth roll so as to maintain the tension in the cloth basically constant.