【作者】 周敏；

【导师】 黄志坚；

【作者基本信息】 广东工业大学 ， 机械电子， 2008， 硕士

【摘要】 目前,塑料中空制品已广泛应用于医药、食品、汽车及人类日常生活用品之中,广泛用来盛装矿泉水、可乐、奶、药、化妆品、儿童玩具等。与此同时,对中空制品也提出了更高的要求。本文针对传统液压塑胶中空成型机工作过程及技术特点,将变频调速技术引入液压传动及控制系统,利用变频调速技术和现代微处理机技术与液压传动系统的有机结合,采用可编程控制器(PLC)结合工业人机界面方案,对双工位吹瓶机系统进行优化设计,开发与设计出新一代高效节能变频式液压双工位塑胶中空成型机,克服了传统液压式塑胶中空成型机的高能耗问题。在本课题中,主要进行了如下研究工作:首先,介绍了塑胶中空成型机工作原理及特性,引出中空吹塑成形工艺流程。其次,对液压系统控制方案进行了比较,提出带D/A转换器和同步控制器的变频式液压系统控制方案,并对此方案进行原理分析和计算。在此基础上对比例阀控非对称缸建模,从理论上对液压系统动态特性进行了分析,并用PID控制器进行参数整定。其中控制性能的分析借助于MATLAB软件中的SIMULINK工具箱,由已建立的数学模型,形成仿真模型,得到可视化的仿真结果。最后,在深入了解系统的动作特性后,对PLC控制变频式液压双工位塑胶中空成型机的原理进行了探讨,针对PLC给出了硬件设计的总体规划,编制出中空成型机动作控制程序。更多还原

【Abstract】 At present, hollow plastic products has been widely used in machinery, electronics, medicine, household appliances, food, daily necessities, automobile and human, widely used to contain mineral water, cola and other soft drinks, including bottles, bottle, cosmetics Bottles, Re Shuiping carcasses, such as children’s toys. At the same time, the hollow products have a higher demand.For this reason it is necessary to optimize the duplex bit hollow plasticmolding machine’s electronic control system design, hollow-forming machines raise the level of automation to improve production efficiency and product quality, improve the competitiveness of enterprises. Based on the original duplex-blow molding machine on the basis of a programmable logic controller (PLC) of industrial human-machine interface programme, the duplex-blowing electrical control system designed to ensure that the action of the match around, no Interference, hollow products to improve the yield and quality.In this paper, traditional hydraulic hollow plastic molding machines and technical characteristics of theworking process, Changing-frequency with adjusting-speed.technology and the introduction of hydraulic control system, using Changing-frequency with adjusting-speed technology and modern microprocessor technology and the organic integration of hydraulic system, development and design a new generation of highly efficient energy-saving hydraulic duplex frequency of hollow plastic molding machines, to overcome the traditional hydraulic hollow plastic molding machines of high energy consumption problem. In this issue, the main author of a study are as follows:First introduced a hollow plastic molding machines working principle and characteristics, leads to hollow blow forming process. Then, the hydraulic system controlling the programme, to bring D/A converters and the frequency synchronous controller hydraulic system control programme and this programme and the principle of calculation. On this basis, by the visual simulation results, interactive way to adjust parameters to learn how different parameters on the system of in-depth understanding of the action, the PLC control frequency Hydraulic hollow plastic molding machines to the principle discussed, for DVP32ES00R+DVP16XM01N of PLC hardware design is given the overall planning, preparation of a hollow machine motor control procedures, in the programming of actions in the study duplex control in the timing of the realization of the PLC.Changing-frequency with adjusting-speed technology will be the introduction of hollow plastic molding machines and hydraulic control system, blowing large hollow containers for the production of energy-saving rate is as high as 70%. In practice the application of such models that overcome the traditional hydraulic hollow plastic molding machines the problem of high energy consumption, is the new generation of highly efficient energy-saving hollow plastic molding machine. Design of hollow plastic blow molding machines of the hydraulic system and electronic control systems, to resolve their pre-existing duplex-action timing matching, with the design, debug simple intuitive advantages, in order to achieve hollow blower in the control of superiority, And the blower’s rapid high-precision tracking control.更多还原