Writing brush holder polishing machine

The utility model discloses a writing brush holder polishing machine which comprises a shell and a distance adjusting mechanism. The center of the inner wall of the right side of the shell is rotationally connected with a rotating frame through a bearing, three sliding openings are formed in the left side face of the rotating frame at equal angles, sliding blocks are slidably connected into the sliding openings, L-shaped ribs are arranged on the left side faces of the sliding blocks, and the middles of transverse rib bodies of the L-shaped ribs are fixedly sleeved with polishing roller sleeves. The distance adjusting mechanism is arranged between the inner wall of the right side of the shell and the sliding opening; wherein a control switch group is arranged on the upper surface of the shell, and the input end of the control switch group is electrically connected with an external power supply; a motor is arranged in the center of the right side face of the shell, and an output shaft of the motor is fixedly co