基于PLC的液晶屏老化线传输控制系统设计与实现

发布时间：2018-03-16 02:02

本文选题：液晶屏　切入点：老化　出处：《中北大学》2017年硕士论文　论文类型：学位论文

【摘要】：近年来,国内液晶屏产业迅速发展,液晶屏产品在我们的生活中已随处可见。由于液晶屏生产工艺较为复杂,在生产过程中可能会产生一定缺陷。因此,需要在产品出售前进行老化处理,将产品潜在缺陷尽快暴露出来,并筛选出不良品,从而防止不良品被出售。本课题针对液晶屏的老化生产,进行了液晶屏在线老化自动生产线的设计与实现。本文首先对液晶屏老化线各工段功能进行介绍,并对其传输控制系统进行分析,明确了控制系统设计任务,分别从硬件设计、PLC程序设计和人机交互界面三方面进行控制系统设计。在硬件设计中,选用高性能的三菱Q系列PLC作为生产线控制核心,并对其余硬件进行了准确选型,在硬件确定的基础上,完成了整个控制系统电气原理设计。在软件设计中,完成了生产线传输控制的PLC程序设计,并采用CC-Link现场总线技术,实现多个设备的远程分散控制。在生产线升降机中,使用三菱伺服电机搭建伺服系统,简单有效地实现了生产流向控制。在GP-Pro EX 4.0软件平台,开发出老化线人机交互界面,并应用Pro-face Remote HMI功能,提高了设备可操作性。本文设计的传输控制系统,经过现场安装调试,最终达到了老化生产要求。老化后,不良品被剔除,优良品的稳定性与可靠性得到提高,增强了企业的竞争力。
[Abstract]:In recent years, the domestic LCD screen industry has developed rapidly, and the LCD products have been found everywhere in our life. Because the production process of LCD screen is more complicated, it may produce some defects in the production process. It is necessary to deal with the aging before the product is sold, to expose the potential defects of the product as soon as possible, and to screen out the bad products so as to prevent the bad products from being sold. The design and realization of the automatic production line for liquid crystal screen aging on line are carried out. Firstly, the functions of each section of the liquid crystal screen aging line are introduced, and the transmission control system is analyzed, and the design task of the control system is defined. In the hardware design, Mitsubishi Q series PLC is selected as the control core of the production line, and the other hardware is selected accurately. On the basis of the hardware determination, the electrical principle design of the whole control system is completed. In the software design, the PLC program of the transmission control of the production line is designed, and the CC-Link fieldbus technology is adopted. In the elevator of production line, Mitsubishi servo motor is used to set up servo system, and the production direction control is realized simply and effectively. The man-machine interface of aging line is developed on GP-Pro ex 4.0 software platform. The Pro-face Remote HMI function is applied to improve the operability of the equipment. The transmission control system designed in this paper has been installed and debugged on the spot, and finally reached the requirements of aging production. The stability and reliability of excellent products have been improved, and the competitiveness of enterprises has been enhanced.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN873;TP278

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