Steel bar blanking length control tool

The utility model discloses a steel bar blanking length control tool, and particularly relates to the technical field of steel bar blanking length control, the steel bar blanking length control tool comprises a concave guide support plate, a transmission belt is arranged at the bottom end of the inner wall of the concave guide support plate, and a driving assembly is arranged in the transmission belt; the driving assembly comprises a driving rod arranged in the transmission belt, and a plurality of rotating rods which are sequentially arranged at equal intervals from left to right are arranged in the position, located on one side of the driving rod, in the transmission belt. Through the arrangement of the driving assembly, after a reinforcing steel bar is cut off on the upper surface of the transmission belt, the linkage air cylinder can be started to drive the baffle to move upwards, the driving motor drives the driving rod to rotate, the driving rod drives the transmission belt to transmit, and rapid discha