The Research And Design Of The Tension Control Of The Paper And Ink Jet Printer

In the control system of ink jet printer, the printing quality of the product is too large and too small, and the work efficiency is reduced. A new generation of graphic inkjet printer, the demands of the 40 m / min diameter 360 mm ~ 420 mm large rolls of paper printing, of printer control system has a very high demand, rolls of paper tension control is indispensable, and existing market tension control system is not suitable for graphic inkjet printer.On the basis of the research of the domestic and foreign status of the graphic ink jet printer and the tension control system, this thesis has completed the development and design of the tension control system based on FPGA.According to the enterprise the tension control system technology requirements, the tension control system are analyzed, the establishment of model of tension control system, according to Hooke’s law, deduced the mathematical model of the tension of the paper roll, and analyze the dynamic characteristics of the tension control system; the tension control algorithm research, analysis of the advantages and disadvantages of the application of conventional PID and fuzzy PID in the system, gives the system simulation diagram, fuzzy PID control in tension control system application in practical. This thesis takes FPGA as the control core design of the hardware circuit system of the tension control system, with low power consumption, low price, the purpose of simple circuit design for the selection of the device and circuit design. The tension control system software is designed, and the test is carried out on the ink jet printer. The results are analyzed and the good performance of the control system is verified.Compared to the market tension controller, the system has and graphic inkjet printer with good properties, good anti-interference ability and meet the control requirements, the cost is low, and can meet the requirements in different printer tension control.