There are arcs, wavy edges, upturned edges, etc. On the cut lithium battery pole piece, it may be caused by various reasons. Please compare and exclude them:

1, the roller surface of the slitting machine is not well treated, and the process design is unreasonable, resulting in the following problems: the material slides horizontally on the roller (commonly known as swimming left and right), wrinkles (unbalanced pulling), and rolls down (the material is too thin, and too much air enters), which will directly lead to irregular winding, wavy edges, warping edges, etc.;

2. Excessive winding tension: it will directly lead to the dish-shaped and drum-shaped finished product;

3. Mechanical failure of equipment: if the bearing of driving roller or idler roller is damaged, the shaft will jump; The accuracy of drum dynamic balance is too low;

4. Tension system design problem: If there is a problem in the matching of tension system, the tension will be uncontrollable, resulting in such a situation;

5. There is something wrong with the choice of winding form: there are many winding methods, so we should choose center winding, surface winding, center surface winding, center sliding of center surface winding and so on according to the different characteristics of products;

6. Selection of cutting tools: The cutting forms such as scribing, shearing, pressure cutting and rolling cutting are also selected according to different material characteristics. If the selection is wrong, the accuracy cannot be guaranteed;

7. Other details: static electricity, equipment operation, raw material characteristics, etc.