Rebar sheath welding slag removing device

The invention relates to the technical field of steel bar outer skin welding slag removal, and discloses a steel bar outer skin welding slag removal device which comprises a protection box body, a feeding port is formed in the side face of the protection box body, and a discharging plate is fixedly connected to the position, corresponding to the lower portion of the feeding port, of the protection box body. An output rotating shaft rotates to drive a driving gear to rotate, at the moment, the driving gear drives a driven gear to rotate, the driven gear rotates to drive stirring teeth on a driven rotating shaft to rotate, the stirring teeth rotate to continuously stir a single gear to rotate, and at the moment, the single gear continuously drives an impact block to impact a steel bar through a connecting rod; at the moment, the collision grooves in the collision blocks continuously collide with the reinforcing steel bars on the guide grooves, the reinforcing steel bar bending caused by welding can be continuou