1. Constant tension must be maintained throughout the winding process without manual adjustment;
2. When the empty roll is started, the tension should not be too large to prevent the film from wrinkling. When the full roll is running, the tension cannot be too small to prevent the film from being taken up too loosely.
3. The system responds sensitively, and can adjust quickly according to the change of the previous stage speed and tension during acceleration and deceleration to ensure constant tension;
4. It is required to quantify the tension, that is, the tension can be set according to the technological requirements of different film production.
https://www.beiguomachine.com/
