1、 毕业论文（设计）毕业论文（设计） 题题 目：目： 砂布生产线温度控制系统的设计砂布生产线温度控制系统的设计 、 2012 2 年年 5 5 月月 28 28 日日 摘摘 要要 从上世纪 80 年代至 90 年代中期，PLC 得到了快速的发展，在这时期，PLC 在处理模拟量能力、数字运算能力、人机接口能力和网络能力得到大幅度提高， PLC 逐渐进入过程控制领域，在某些应用上取代了在过程控制领域处于统治地位 的 DCS 系统。PLC 具有通用性强、使用方便、适应面广、可靠性高、抗干扰能力 强、编程简单等特点。PLC 在工业自动化控制特别是顺序控制中的地位，在可预 见的将来，是无法取代的。 在砂布
2、生产过程中，从坯布开卷，涂底胶，静电植砂，复胶到烘干固化成为 成品，整个生产流水线，对各个点的温度控制要求较严格，是产品质量的关键， 必须保证各种型号砂布在生产过程中，温度在生产工艺设定范围之内，采用网络 技术在产品生产过程中自动测控工艺流程参数，在生产过程实时测量、控制。通 过改造生产线的温度控制系统具有响应快、稳定性好、可靠性高,控制精度好等 特点，对工业控制有现实意义。 关键词关键词：砂布生产线的控制系统 温度控制 PLC ABSTRACTABSTRACT From the last century to 90 in the mid 80s, PLC has been rapid dev
3、elopment in this period, PLC gradually entering the field of process control, ease of use, wide adaptation, high reliability and strong anti-interference,simple to program and so on.PLC control, especially in the industrial automation sequence control the position, in the foreseeable future, is no s
4、ubstitute. this paper introduces the drying room as the charged object to the production line temperature of the main accused of the export parameters to station temperature as deputy accused of parameters to control the heating resistance wire voltage parameters to PLC,the use of PLC ladder program
5、ming language, programming, production line temperature control. Automated production line a wide range of applications, in a considerable number of field .The quality of the product.automated production line control systems currently used mostly for computer control microprocessor core technology,
6、both to improve the automation equipment have improved the control precision equipment. this paper on the abrasive cloth production line control system works, selection of temperature transmitter, PLC configurations, the configuration software design aspects were described.Through the transformation of automated production line control system has fast response,good stability, high reliability, control accuracy and good features, practical significance for industrial contro
