Winding device

The invention discloses a winding device which is applied to winding of a material belt, the winding device comprises a winding roller, a rotary supporting frame, a smoothing roller assembly and a driving device, and the winding roller is used for winding the material belt; the rotary supporting frame is adjacent to the winding roller and comprises a rotating shaft, a cantilever and a flattening plate, one end of the cantilever is fixedly connected with the rotating shaft, a flattening roller assembly is installed at the end, away from the rotating shaft, of the cantilever, the flattening plate is movably installed on the cantilever, and the side, facing a material belt, of the flattening plate is provided with a flattening face; the driving device is in transmission connection with the rotating shaft so as to drive the smoothing roller assembly and the smoothing plate to move towards the winding roller through the rotating shaft, so that a smoothing roller of the smoothing roller assembly compresses the mate