Cutting transmission clutch device of reinforced steel bar automatic blanking machine

The invention discloses a cutting transmission clutch device of a reinforced steel bar automatic blanking machine. The cutting transmission clutch device comprises a main shaft, a pressing head, a gear, a columnar driven part, tapered iron, bearings, a machine shell, a spring, a sliding block, a pull rod, a driving air cylinder and a cutter. The main shaft is supported on the machine shell throughthe two bearings, one end of the main shaft is slidably connected with the pressing head, and the sliding block fixing the cutter is connected to the lower portion of the pressing head. The gear rotates on the main shaft through a middle bearing and is in engaged connection with a transmission gear set in the machine shell, and one end of the gear is in castellated connection with the columnar driven part. The columnar driven part is movably connected with a spline of the main shaft, one end of the spring is connected with the columnar driven part, and the other end of the spring is tightly attached and fixed to a sp