Direct-read injection control system

The utility model discloses a direct-read injection control system and relates to the technical field of casting machines. The direct-read injection control system comprises an injection piston rod, wherein a spiral flute is formed in the surface of the injection piston rod; the surface of the spiral flute is coated with a copper layer; the direct-read injection control system further comprises a magnetic sensor for detecting a magnetic field of the piston rod as well as a counting module and a PLC (Programmable Logic Controller); the magnetic sensor, the counting module and the PLC are sequentially connected. The direct-read injection control system disclosed by the utility model replaces a magnetic grid; the magnetic sensor is used for detecting the magnetic field of the piston rod, transmitting a detection signal to the counting module and then feeding back the signal to the PLC; the direct-read injection control system is controlled by the PLC. The direct-read injection control system has the advantages of simple structure, convenience in mounting and low fault rate.