毕业设计（论文）：基于PLC控制系统的注塑机控制系统设计.docx

摘要
塑料成型机(简称注塑机),是集机、电、液于一体的典型系统,因具有能一次成型复杂制品、后加工量少、加工的塑料种类多等优点,目前已成为塑料成型加工的主要设备。传统中小型注塑机电气部分大多采用继电器控制,随着电子技术的不断进步与发展,其缺点越来越显著的表现出来,其主要表现为线路复杂,继电器动作慢、寿命短,系统控制精度差,故障率高,维修难度大等。
针对上述问题,此次毕业设计采用PLC控制系统对注塑机控制系统进行控制。通过FXGP-WIN-E编程以各种电气保护和传感信号作为输入,各动作工序作为输出。提高了系统的控制精度,可靠性好,且易于检修。
本文介绍了注塑机的机件结构和控制要求,其次分析了注塑机的工作原理和工艺流程,最后给出了PLC控制系统的硬件组成和软件设计方法。
关键词:注塑机;PLC;步进控制;FXGP-WIN-E
Abstract
Plastic molding machine (injection molding machine for short), is a mechanical, electrical and fluid in one typical system, because of plexity can be a molding products, less processing, and processing various types of plastics, etc., has e the plastic molding process major equipment. Traditional small and medium-sized electric injection molding machine used relays to control the most part, with the advances in electronic technology and development, its ing more and more obvious ings of the show, the main line performance for plex, slow relay, short life expectancy, the system control poor accuracy, the high failure rate, maintenance, etc. is very difficult.
In response to these problems, the graduate design of the control system of injection molding machine control system using PLC control. Through the programming to a variety of electrical protection and sensor signals as input, processes the output of the action. To improve the control of the system accuracy, reliability, and easy maintenance.
This paper introduces the working principle of injection molding machine, an analysis of the traditional ings of the relay control system, and finally given its PLC control system hardware and software design.
Key words :injection molding machine;PLC;temperature test;stepping control;FXGP-WIN-E
目录
第1章绪论 1
1
2
课题的研究内容 3
第2章 PLC的简介 4
PLC的基本结构 4
PLC的工作原理 4
5
第3章注塑机控制系统总体设计方案 6
6
6
7
7
7
7
8
8
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8