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The pipe pile forming machine concrete pile production line production equipment, is a mechanical, electrical, hydraulic integration products. The purpose of this paper is to design a high degree of automation, stable performance and reliable operation of the pile molding machine. The mixing system is an important part of the pipe pile molding machine, and its precise control is therefore obtained a guarantee of good pile product. This paper analyzes the structure and composition of the pile forming machine and workflow, and according to the technical requirements of the system, electro-hydraulic proportional control scheme designed hydraulic drive system, and checking the performance of the hydraulic system. For pipe pile molding machines on-site work environment is relatively poor, the low degree of automation, electrical control system control part adopts PLC control program, the control program and touch-screen human-machine interface, PLC control system hardware development. After the system has been developed, and achieved satisfactory results in practical applications. For in-depth study of the mixing system, this paper established a system hydraulic components AMESim model with AMESim simulation software simulation and optimization of hydraulic components, and then build the entire system AMESim simulation model. The simulation results show that, the basic mixer motor speed, pressure, torque and flow stabilized, and all are within a reasonable range of designs, in order to verify the rationality of the design of the system. But the valve just changed when the system inertia, coupling factor and nonlinear sake, these parameters in the system startup overshoot ratio. Finally, in order to improve the control precision, select PID control strategy, AMESim and MATLAB simulation technology system speed control characteristics and pressure control characteristics of a simulation study. Simulation results show that relative to the conventional open-loop control, PID control can reduce the overshoot of the system to improve the dynamic characteristics of the system. Papers will be organic combination of mechanical, electrical, hydraulic and control multi-disciplinary technology to complete the development and research of the the pipe pile molding machine electro-hydraulic system, theoretically, which will pipe pile molding machine engineering and manufacturing to provide theoretical support . In addition, the paper's design and research methods, and other similar functions or similar structures and equipment in the industrial design and research has a certain reference significance.
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