Polishing device for leather processing

The utility model provides a polishing device for leather processing. The polishing device comprises a releasing roller, a polishing unit and a winding roller. The releasing roller is used for releasing unpolished leather, and the winding roller is used for winding the polished leather; the releasing roller and the winding roller are rotationally connected to the rack through bearing seats, the rack is fixed to the ground, the rear end of a center rotating shaft of the releasing roller and the rear end of a center rotating shaft of the winding roller are connected with a first driving motor and a second driving motor through couplings, and the axis of the releasing roller and the axis of the winding roller are located on the same water surface. A pressure-bearing platform is arranged below the position between the releasing roller and the winding roller, four first hydraulic cylinders which operate synchronously are symmetrically arranged under the pressure-bearing platform, a supporting platform is arranged