Simulation Analysis And Control Research Of Ejection System Of Ceramic Brick Press

The ceramic brick press is the most critical equipment of the ceramic industry, Its performance determines the quality of product, It occupies a very important position in the construction industry.The ejection system is the critical equipment btween the ceramic brick press and the distributing installation.It must work reliably and have high precision.Because the ejector hydraulic cylinder adopts the asymmetrical structure,so the features of reciprocating motion are different. the ejection system needs large flow and stable oil pressure.These make the design improvement and optimizing of the hydraulic system of the ejection system complicated. So it is necessary to have a dynamic simulation of the existing ejector system and validate the simulaition model by the experiment.for the optimization design of the ejection system and further improving the performance of the ejection system,it can make certain guiding significance. the performance of the ejection system largely depends on the control algorithm. A suitable control strategy can make the performance of the ejection system achieve novel outcomes.The paper further discussed the control strategy of the ejection system on the basis of dynamic model.The main work of the paper includes:(1) Fist of all, Perform related research of the sistem of ejector cylinder controlled by the servo valve,which is the core component of the ejection system. Analysis the friction of the motion of the ejector hydraulic cylinder; Establish the transfer function of the sistem of the ejector cylinder controlled by the servo valve; Analysis and contrast the characteristic parameters of reciprocating motion of the ejector cylinder; Analysis the non-linear characteristics of the speed of the ejector cylinder and describes the pressure characteristics of the system.(2) Secondly, Perform the dynamic simulation and experimental validation of the servo ejection system:Establish the dynamic model of the cartridge type reducing valve and the sistem of ejector cylinder controlled by the servo valve; Establish the dynamic model of the servo ejection system and perform the simulation analysis of the servo ejection system; Validation the simulation model by experimentation.(3) Design the control algorithm of the servo ejection system:Design the PID controller of the servo ejection system and Perform the Simulation and experimental analysis; Design the fuzzy controller of the servo ejection system, Perform the Simulation and experimental analysis of the controller and Compare the control effect with the PID controller; Design the P-Fuzzy-PID controller of the servo ejection system, Perform the simulation and experimental analysis of the controller and Compare the control effect with the PID controller and the fuzzy controller.(4) In the end,Introduce the design procedure of the data acquisition system and the hardware platform of the control algolithm:By using the NI-DAQ acquisition card as the hardware platform and the software as LABVIEW,The multi-channel synchronous data acquisition system was designed; Introduce the hardware platform of the control algolithm and the implementation procedure in TWINCAT.