Sliding block profile steel rolling die

The utility model provides a sliding block profile steel rolling die which comprises a U-shaped box body, a threaded hole, a bottom cover, a fixing bolt, a threaded pipe, a top cover, a buffering supporting protection wheel structure and a movable hoisting dismounting frame structure, and the threaded hole is formed in the middle of the interior of the bottom end of the U-shaped box body; the outer wall of the lower end of the U-shaped box body is sleeved with a bottom cover. The U-shaped box body, the fixing pipe, the spring, the inclined T-shaped frame and the protective clamping wheel are matched with one another, so that the inclined T-shaped frame can be pushed through the spring in the using process, and the buffer protection work on a steel mill can be realized in the process that the protective clamping wheel is in contact with the steel mill; and a U-shaped box body, a supporting plate, an inserting block, a fixing ring and a movable brake wheel are arranged in a matched mode, so that the purpose tha