Lcz-3b Steel Truck Radial Tire Building Machine, Electrical System Design

The tire is one of the important parts of the motor vehicle. Its quality can directly influence the vehicle. The tire building machine is the key equipment of the tire and its stalibility and accuracy are important factors which can influence the tire building machine. The automation level of the domestic traditional tire building machine is not very high. It can not guarantee the technology accuracy. And the quality often changes. That is to say it can not satisfy the requirement of the accuracy and the quality. There will be a higher requirement for automation design.This project -LCZ-3B All-Steel Radial Tire Building Machine is provided for the Qingdao doublestar Rubber & Plastic Co., Ltd by Yantai Dongze factory automation Co., Ltd. It uses the PLC, the S120 and PC677 of Siemens to guarantee the technology. And the key parts includes the S120 servo system design, the PLC program and the PC configuration.During the system design of the tire building machine, the positioning precision of all parts is the precondition to make good tire. So we need to choose a good servo. In the project S120 is chosen. It has not only high precision speed control but position control function to realize relative and absolute positioning. It can simplify the PLC program and can modify several groups parameters.PLC is the core component of the system and most of the work needs to be done by it. So the program design is very complex. The paper will detailedly introduce the design method, the function and the structure. And then introduces some typical program designs.PC677 control panel is chosen in the project. VB is embedded in the WinCC and the technology is compiled in the VB environment and created .exe file in the WinCC software to realize the compiling and downloading of the technology. It can resolve the problem which the PLC program needs to change with the technology parameters. This can help the equipment work effectively and easily.The paper adopts several advanced control methods according to the building machine such as intelligent PID control, multi-mode intelligent control and pre-control so that the system has good control target.