Improvement of Control and Hydraulic System for Turnover Body in Strips Case Filling and Tipping Machine

As a solution to the dithering of turnover body and high temperatures of hydraulic oil and driving motor, the positioning means of belt conveyor was optimized by a prior knowledge based LS-SVM (Least Square Support Vector Machine) theory. The control system for turnover body was improved by PLC programming; motor and hydraulic oil were cooled by axial flow fan and compressor refrigeration technology respectively; and the working pressure of hydraulic system was readjusted. The results showed that after improvement, the leakage of hydraulic oil and the dithering of turnover body were eliminated, the cracking in the supporting area of turnover body to the piston rod of oil cylinder decreased from 3-4 times/year to 0, the temperature of motor lowered from 65 to 44 ℃ and that of hydraulic oil lowered from 55 to 37 ℃. The failure rate of equipment was effectively reduced, while the reliability and safety of equipment running were promoted.