LOGO顺序控制在真空加压浸渍设备中的应用.pdfVIP

LOGO!顺序控制在真空加压浸渍设备中的应用 韩清华李树君李仪凡马季威赵东林张兰芳 ( 中国农业机械化科学研究院, 北京 100083) ［摘要］介绍了基于LOGO! 控制器的真空加压浸渍设备气动顺序控制系统的总体方案、硬件系统和软件系 统。气动顺序控制系统采用接近开关自动控制罐盖定位、关盖、开盖和锁紧操作，LOGO ！自动步进执行真 空加压浸渍过程循环的抽真空、吸糖液、加压、浸渍、放糖液工序，能够连续自动完成整个加工过程。该设 备实现了快速均匀浸糖，通过调整各工序的操作时间参数，可广泛适用于食品的强化浸渍加工。 关键词 LOGO! 顺序控制 气动 真空加压浸渍设备 中图分类号：TP273 文献标识码：A Study on the Pneumatic Sequential Control System of Vacuum Pressure Impregnation Equipment Qinghua Han, Shujun Li*, Yifan Li, Jiwei Ma, Donglin Zhao, Lanfang zhang （Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China ） Abstract The control principle, design scheme, hardware and software of pneumatic sequential control system based on LOGO! controller for vacuum pressure impregnation equipment were comprehensively analyzed. The pneumatic sequential control system adopted inductance approach switches to finish the tank cover locating, closing, opening and shutting operation, and adopted LOGO! controller to run the single vacuum pressuring impregnation cycle including vacuum pumping, sugar sucking, pressuring, impregnating and sugar sucking procedures, so that carried out the whole processing procedures step by step automatically. The vacuum pressure impregnation equipment could finish impregnating sugar rapidly and uniformly, and be suitable for plenty of materials impregnating through adjusting each impregnating processing times. Keywords: LOGO!, Pneumatic, Sequential control, Vacuum pressure impregnation equipment 引言 LOGO ！是西门子公司研制推出的通用逻辑模块，各种不同形式的LOGO ！基本型、扩展 型和通讯模块使其具有高度的灵活性和极强的适应性，集成有多种基本功能和特殊功能，可 代替定时器、继电器、时钟和接触器的功能，取代了数量众多的继电器设备[1~2] 。LOGO!控制 器本身集成了编程能力，带有液晶显示器和按键，使用 LOGO!控制器面板上的键盘与屏幕， 可以轻松编写控制程序、随时修