What are the reasons and countermeasures for the wrinkling phenomenon of the electrode during the operation of the release film coating machine?

1. The overall placement accuracy of the release film coating machine is low, and the placement of each component deviates from the middle line of the overall machine decision or has an angle with the middle line of the decision. The foil strip may wrinkle significantly, so it is important to adjust the placement in the middle.
Release film coating machine
2. If the parallelism between the passing rollers exceeds the tolerance, it will cause the foil strip to wrinkle. It is necessary to carefully check whether the vertical projection surface is not compliant or the degree surface is not compliant, and then adjust it.
3. The roughness of the roller surface exceeds the tolerance, and the roller surface is not smooth enough. When there are obvious processing textures, it can also cause the foil strip to wrinkle, and the manufacturer needs to replace it.
4. If there are foreign objects sticking to the back roller and each passing roller, or excessive water or isopropanol is used for wiping, it is necessary to regularly inspect, timely detect and organize, and be careful not to damage the roller surface.
5. If the foil strip is not in good condition and the tension on both sides of the foil strip is not balanced, the pole piece will wrinkle. First, adjust the tension adjustment roller under the coating head. After the foil strip gradually stabilizes, adjust the adjustment roller to its original state.
6. When the gap between the back roller and the coating roller is not consistent when they are in close contact, the electrode will wrinkle. The coating line believes that whether applying one or two sides, it is necessary to carefully adjust this gap. Firstly, expand the gap appropriately, then slowly compress it. At the same time, investigate the dial gauge scale when the coating roller just contacts the foil strip, and then compress the gap by 0.03 millimeters.
7. When the deviation correction system is abnormal, pole wrinkling may also occur. Check whether the front and rear three deviation correction systems are in automatic mode. According to the online investigation of coating, if the length on both sides of the foil strip is inconsistent, even if the sickle is bent too large, there will be pole wrinkling, which surpasses the ability to correct deviation. Therefore, the foil material has to be replaced.
8. When the tension of the pole piece is too high, the pole piece wrinkles. The tension setting should be checked for rationality. Check again whether the rotation of each transmission roller and the winding roller is flexible, and promptly dispose of the inflexible roller.
9. When the distance of the back roller is inconsistent, the pole piece wrinkles. Machine repair personnel are required to conduct inspections, confirm and adjust. When the gap between the back roller and the coating roller is 1mm (see the dial gauge), the coating should be tested first. When the tail is qualified, the nut should be locked.
During the reuse process of the rubber roller surface of the back roller, periodic elastic deformation will occur. When there is a certain degree of residual deformation, wrinkles will also occur, and a new product must be replaced.
11. According to the online investigation of coating, the looseness of the fastening screws of a certain roller caused the parallel condition of each roller to be damaged, and wrinkling phenomenon would occur at this time. As long as it is discovered in a timely manner, adjusted and fastened properly.