Pre-pressing device for controller production

The utility model discloses a pre-pressing device for controller production. The pre-pressing device comprises a hollow box and an ejection unit, a mold pressing frame is arranged in an opening in the center of the upper surface of the hollow box, a pressure bearing plate is slidably connected into the mold pressing frame, a vertical frame is arranged on the rear side of the upper surface of the hollow box, an electric push rod is arranged at the front end in the vertical frame, a pressure applying plate is arranged at the lower end of the telescopic end of the electric push rod, and trapezoidal tables which are in bilateral symmetry are arranged on the bottom surface of the pressure applying plate; the ejection unit is arranged in the hollow box and is in contact with the trapezoidal table; a single chip microcomputer is arranged on the front side face of the hollow box, and the input end of the single chip microcomputer is electrically connected with an external power source. According to the pre-pressing d