The utility model discloses a
polishing device with a
protection mechanism, and relates to the field of wood board
polishing devices. The cleaning device comprises a supporting frame, a conveying belt, a movable plate and a workpiece, a cleaning mechanism is arranged on one side of the bottom of the conveying belt, the cleaning mechanism comprises a negative pressure plate, a negative
pressure groove is formed in one side of the top of the negative pressure plate, a mounting plate is arranged on the other side of the top of the negative pressure plate, a
brush is arranged on the mounting plate, and the movable plate is arranged on the supporting frame. According to the cleaning mechanism, in the process of
polishing the surface of a workpiece, a negative
pressure pipe and a negative pressure device firstly enable a negative pressure plate on one side of the bottom of a conveying belt and a negative
pressure groove to form a negative pressure area, chippings generated in the polishing process are rapidly adsorbed into the negative
pressure groove, and meanwhile, the chippings can be effectively removed by being used in cooperation with a
brush. Chippings adhered to the surface of the conveying belt are thoroughly brushed and swept down, so that the cleanliness of the surface of the conveying belt is remarkably improved, the practicability of the polishing device is improved, and the cleaning
workload on the external environment is also reduced.