Film slitting machine gap rewinding

Choosing a suitable film slitting machine winding method is very necessary for the continuous production of high-quality films. Internal forces will be generated during the material curling process. Using improper curling methods may cause product quality problems or even scrap the film roll material. The choice of film winding method will consider many factors such as the size of the paper tube, the type of material and the quality of the finished roll. It is also very important to understand the torque, pressure and tension.
The gap type winding design is mainly to avoid the shortcoming that the material is easily scratched during the surface curling process, so the structure is still based on the center winding. On this basis, a film following roller is added, and the film roller is driven by the cylinder. It can move backward as the diameter of the film roll increases, and maintain a fixed gap between the film roll and the rewinding film roll.
Since there is always a wrapping angle between the film roller and the web, it can also alleviate the air entering the film roll during the rewinding process. At the same time, the existence of the film roller can also make the transverse traction force of the film more balanced, avoiding the unevenness that may occur during the central winding process and causing wrinkles. Although intermittent winding has many advantages, it is expensive due to its very complex structure and control.