The traditional screw press have many disadvantages,such as the degree of automation is low,the quality of oil is low. Through research on oil principle and mechanical structure of the screw press, a set of screw press automatic closed-loop control system that based on PLC control method was designed. Results showed that the degree of automation of the screw press was greatly improved, the temperature and press force in the chamber has been effectively controlled,the control system has stronger anti-jamming, fast response,short setting time, screw press automatic colsed-loop control system was...
