The Development And Application Of System Of Coating Paper For Cover Fruit

China is a great country in paper-making, but lags in the technology of paper deeply-processed, especially the coat technology is still far lag behind the world's advanced level. So this article introduces the development process of the system of coated paper. At first, it introduces the mechanical component of the system of coated paper. It selects components appropriately based on the demand of products. This system is made up of the mode of coating paper with rollers, drive system composed of steel net supported and three drivers, dryness system composed of oven with air floated and drying um with electric tubes, synchronous control system with the positions of strain rollers. And it developed an appropriate software of control system. This system achieves demands of operation, stabilization, continuity and high efficiency.This control system is based on the technology of IPC(Industrial Personal Computer) and PLC, the technology of frequency conversion and the technology of fuzzy-PID complex control. The software is programmed in according to the characteristic of modules, so this control system can run harmoniously and effectively.During the debugging of this system, it analyses synthetically the run of drivers, the temperature of oven, the temperature of drying um. It educes a series of parameters, so the system is controlled in the status of fulfilling demands of operation.