Film cutting device and film covering device

The utility model provides a film cutting device and a film laminating device, and the film cutting device comprises a guide rail which extends along a first direction; the moving part can move on the guide rail; the cutter wheel is arranged on the moving part and moves along with the moving part, and the cutter wheel can rotate around the axis in the second direction; the grinding module is arranged close to the end of the guide rail, the grinding module comprises a mounting base and a clamp connected to the mounting base, the clamp comprises a pair of clamping arms extending in the first direction, grinding parts are arranged at the ends of the clamping arms, a gap between the pair of clamping arms is aligned to the cutter wheel, and the grinding parts are arranged on the mounting base. And the pair of clamping arms can be close to each other or far away from each other. The cutter wheel can be polished under the condition that the cutter wheel is not detached, the use is convenient, the service life of the