Polyurethane rubber roller formed by rotary casting

The polyurethane rubber roller comprises an inner core and a connecting frame fixedly connected to the surface of the inner core, a shock absorption layer is fixedly connected to the surface of the connecting frame, a polyurethane layer is fixedly connected to the surface of the shock absorption layer, connecting rings are arranged on the surface of the inner core in a sleeved mode and located on the two sides of the connecting frame, and the polyurethane layer is fixedly connected to the surface of the connecting frame. The outer surface of the connecting ring is fixedly connected with a plurality of supports, the supports are uniformly arranged in a surrounding manner, a plurality of supporting plates are inserted into the polyurethane layer, the supporting plates correspond to the supports, the supporting plates are located on the inner sides of the supports, and the supporting plates are connected with the supports through connecting structures. According to the polyurethane rubber roller, the structural