Pressure adjusting device of copper-clad plate prepreg edge-trimming cutter

The utility model discloses a pressure adjusting device of a copper-clad plate prepreg edge-trimming cutter. The pressure adjusting device comprises an air cylinder connected with the edge-trimming cutter, a compressed air pipe, a pressure adjusting valve and an air source, the two ends of the compressed air pipe are connected with the air cylinder and the pressure adjusting valve respectively, and the pressure adjusting valve is connected with the air source. The pressure adjusting device of the copper-clad plate prepreg edge-trimming cutter can enable the edge-trimming cutter to be conveniently adjusted, the service life of the edge-trimming cutter is prolonged, the fact that the cutter is originally replaced every 3 days is changed to the fact that the cutter is replaced every four to five days, meanwhile, abrasion to the air cylinder is small, and a large amount of production cost is saved.