Design the control system circuit of vacuum type injection machine

Design the control system of EWVCM-600 vacuum casting machine according to the principle of vacuum injection. EWVCM-600 vacuum-injection machine control system is mainly consisted of the mechanical structure and circuit structures. The part of mechanical structure completes the pouring cup holders, stirring, pouring each operation by turning the handwheel. Dumping Action of container material uses a chain drive to achieve. Due to the systems for the process is relatively fixed, and the control operation is relatively simple, thus the control part applies the simple and stability relay to control start or stop of the vacuum pump and start or stop of gas equipment. AC variable speed motor drives the agitator, the stirring speed is controlled by operating the governor on the panel. Analyse and test the working principle and process of EWVCM-600 vacuum-injection machine, and design the mechanical structure and circuit diagrams. It achieves the desired objectives.