A tension self-adaptive adjusting device in a large roll paper winding process
By using a roll diameter detection and tension adjustment mechanism, combined with a limiting and flattening device, adaptive tension adjustment is achieved during the winding process of large rolls of paper, solving the problem of inner paper crushing caused by constant tension and improving the quality of finished products and the tightness of winding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the large roll paper winding device adopts constant tension control, which causes the outer paper to exert excessive radial pressure on the inner paper when the diameter of the paper roll increases, which can easily cause wrinkles or crush the paper core.
A tension adaptive adjustment device was designed. The device monitors the change in paper roll diameter in real time through a roll diameter detection mechanism, and uses a hydraulic drive rod to adjust the positive pressure between the active friction wheel and the driven friction wheel to achieve stepless adjustment of the winding tension. It is also equipped with a limit flattening mechanism to expel interlayer air and prevent the paper roll from becoming loose and bulging.
It achieves adaptive reduction of winding tension as the paper roll diameter increases, preventing damage to the inner paper layers, improving the quality of large roll products, ensuring the paper roll is flat and compact inside, and avoiding wrinkles and core crushing.
Smart Images
Figure CN122403191A_ABST