Grinding brush

The utility model discloses a grinding brush, which belongs to the technical field of grinding and comprises a grinding box, a guide roller, two groups of grinding rollers and a wind-up roller are sequentially arranged on the grinding box along the conveying direction of a copper strip, grinding brush components are mounted on the grinding rollers and are fixedly connected with the grinding rollers through bolts, and the wind-up roller is fixedly connected with the guide roller. One side of the grinding box is provided with an open groove corresponding to the grinding brush assembly, one ends of rotating shafts of the two sets of grinding rollers penetrate through the grinding box and are provided with a main gear and an auxiliary gear correspondingly, an intermediate gear is arranged between the main gear and the auxiliary gear in an engaged mode and rotationally connected with the grinding box, and one ends of the rotating shafts are connected with a motor; the other end of the rotating shaft is rotationall