Lithium battery negative electrode rolling pneumatic scraper device

The utility model discloses a lithium battery cathode rolling pneumatic scraper device, which comprises a protective cover, a plurality of groups of first support plates and second support plates are arranged in the protective cover, a moving component is arranged between each group of first support plates and second support plates, one side of each group of first support plates is provided with a fixed plate, and the other side of each group of first support plates is provided with a movable component. An infrared distance meter is arranged on one side of each set of fixing plates, a displayer is installed on the other side of each set of fixing plates, and the signal output end of each set of infrared distance meter is electrically connected with the signal input end of the corresponding displayer. The distance between the sliding block and the mounting plate can be conveniently and accurately measured, so that the distance between the scraper and the compression roller is accurately positioned, and the sit