Design And Implementation Of Automatic Control System Of CD Spin Coating

With the development of optical disc industry, the blu-ray disc as the next generation optical disc has been widely used in many fields. And the stability of the blu-ray disc production equipment has a gap with the production equipment of the DVD disc, which leads to the low rate of the finished products in the production process, and to some extent, it affects the wide application of the blue disc. Spin coating is the key part in the process of optical disc manufacturing and the control system is the core. The research and development of the control system of the spin coating can improve the process control level of the production equipment and improve the quality of the disc.In this paper, the structure of disc spin coating control system based on field bus is presented, and the function design, implementation and system operation are accomplished.First, the text on the discs spin coating control system is analyzed, Determine the feasibility plan. The process flow in the process of optical disc manufacturing is introduced. The hardware structure of the optical disc spin coating system is analyzed.Secondly, the design of the disc spin coating control system is carried out. Design of control system based on PLC, The scheme of PLC based control system is designed, And design the main program and the structure of the program, the network configuration of DP bus, serial communication network, spin coating parameter preservation program, Spin coating parameter template.Finally, the realization of the disc spin coating control system is introduced in detail. The main functions of the control system are discussed according to the process flow of the core. And the system is divided into several parts according to the order of human computer interaction interface and process flow, Such as splash plating machine part, glue coating part, spin coating part, scanner detects part, etc. The realization process of human computer interaction and the process of program control are introduced in detail. The application of scanner detection system and spin coating control system is introduced.Blu-ray Disc spin coating automatic control system has been debugged and put into use. In the process of using the system can run stably, the finished product rate is improved compared with the previous equipment, which proves that the control system can meet the design requirements.