全自动灌装机的PLC自动控制设计及故障处理毕业设计.docVIP

毕业设计（论文） 题 目： 全自动灌装机的PLC自动控制设计及故障处理 摘 要 传统的继电器控制设备不仅体积大，耗电多、效率低且故障率高，已无法满足现代生产快速反应、精确度高且连续稳定运行时间长的要求。另外灌装液体大多粘度（cps）较高因此普通灌装机无法实现液体自流灌装。PLC是一种专门为在工业环境下应用而设计的数字运算操作的电子装置，具有通用性好，可靠性高，安装灵活，扩展方便，性价比高等一系列优点，通过PLC控制伺服电机的升降来精确控制灌装量的多少，主要用于高粘度等液体的灌装。 本文主要介绍了基于PLC和伺服系统等机电产品的控制系统可以很好地满足现下各种用户对于灌装设备的使用要求。 关键词 PLC 伺服系统 全自动灌装 调试 目 录 第1章 全自动灌装机控制系统用户需求及其分析···································1 第2章 电气线路设计 2.1总体功能设计···································································1 2.2电气产品选型···································································3 2.3具体实施·······································································5 第3章 控制模块的程序设计思路及设计 3.1PLC与触摸屏的选型·····························································6 3.2PLC的输入输出点位表和接线图·················································7 3.3PLC与触摸屏通讯模块设置······················································8 3.4PLC编程要点 3.4.1PLC控制补液电机减少生产环节·············································9 3.4.2PLC控制急停按钮保护设备及操作人员·····································10 3.4.3PLC控制设备清洗次数保持设备清洁·······································12 第4章 设计过程中的故障处理及设备调试与维护 4.1各类传感器的接线过程出现的问题·············································13 4.2伺服驱动器与伺服电机及PLC间的通讯问题····································15 4.3PLC与触摸屏间通讯问题·······················································17 4.4全自动灌装机调试·····························································18 第5章 结 论······································································19 致谢··············································································20 参考文献··········································································21 附录··············································································22 第1章 全自动灌装机控制系统用户需求及其分析 近几年随着机器设备自动化的不断升级，自动灌装机的维护，操作和保养越来越容易，自动化技术的升级对自动灌装机操作人员的专业技能也没以前那么复杂和那么高了，所以产品灌装的质量直接与自动灌装机的质量水平和先进水平有关。现在我们都知道自动灌装机的种类很多，不同的机械可以满足不同产品灌装要求。 目前各类药品，农药，食品等液体粘稠度普遍较高使用老式液体灌装机无法达到灌装精度的有效控制，因此为了达到用户的要求增强液体灌装时的操作精度使用了可编程控制器（PLC），触摸屏等控制精度高,操作简单的电气设备