PLC洗衣机毕业设计论文

河南理工大学万方科技学院本科毕业论文I摘要本文利用日本三菱公司生产的微型FX2N-24MR型PLC。设计出PLC控制的全自动洗衣机。文章介绍了洗衣机的结构，对全自动洗衣机的控制系统进行了分析，在此基础上提出了基于PLC的全自动洗衣机控制方案，并对方案进行了论证，根据洗衣机的工作原理，设计了流程及程序，对按钮，继电器，开关，电动机等其它一些输入/输出点进行控制，实现了洗衣机洗衣过程的自动化。由于洗涤，排水，脱水的时间均由PLC内计数器控制，所以只要改变计数器参数就可以改变时间。具有智能化程度高、安全可靠、方便、灵活等特点。可编程控制器(PLC．ProgrammableLogicController)是以计算机微处理器为基础的工业自动控制装置，随着PLC技术的发展．它的功能越来越完善，也越来越强，被广泛应用于各种工业自动控制装置之中．PLC集三电一体。具有良好的控制精度和可靠性。PLC的生产厂家、型号、种类繁多．不同型号有不同的使用方法和编程语言。本文拟用日本三菱公司生产的FX2N-24MR微型PLC．设计出PLC在全自动洗衣机控制中的应用，既可以作为高校学生学习PLC控制的参考，也可以作为有关技术人员维修改造全自动洗衣机控制电路的参考。关键词：PLC，梯形图，洗衣机河南理工大学万方科技学院本科毕业论文IIAbstractThePLCControlCompletelyautomaticWasherisdesignedbytheminiatureFX2N-24MRPLCwhichisproducedbytheJapaneseMitsubishiElectriccorporation．Thearticleduringintroductionwasherstructure,carriesontheanalysistothecompletelyautomaticwashercontrolsystem,proposedinthisfoundationbasedonthePLCcompletelyautomaticwashercontrolplan,andhascarriedontheprooftotheplan,hascarriedonthedesignaccordingtothewasherprincipleofworktotheprocedureandtheflow,hastheintellectualizeddegreehigh,safereliableandsoonthecharacteristics.Tothebutton,therelay,theswitch,theelectromotorandsoonothersomeI/Ospotcarriesonthecontrol,realizedthewashertowashclothestheprocessautomation.Becausespreadseverytimelavation,drainingwater,dehydratedtimebyPLCincountercontrol,solongasthereforethechangecounterparametermaychangethetime.ThePLC，programmableLogicControllerisaautomaticcontroldevicewhichtakesthecomputermicroprocessorasthefoundation．AlongwiththePLCtechnology’sdevelopment，itsfunctionisgettingmoreandmoreperfect，isalsogettingstrongerandstronger．Itiswidelyappliedineachindustryautomaticcontroldevice．ThePLCwhichincludesthreeelectricitybody．hasagoodcontrolprecisionandthereliability．ThePLCManufacturerandthemodelhasmanytypes．Thedifferentmodelhasdifferentapplicationmethodandtheprogramminglanguage．ThisarticlebasedontheMitsubishiElectricFX2N-24MRPLC，designsPLCinthecompletelyautomaticwashercontrolapplication．Itmayusedastheuniversitystudent’sreferencewhentheystudythePLCcontrol．Itmayalsotaketherelatedtechnicalpersonnelto河南理工大学万方科技学院本科毕业论文IIIservicethetransformationcompletelyautomaticwashercontrolcircuit’sreference．Keywords：PLC，TrapezoidalChart，Washer河南理工大学万方科技学院本科毕业论文1目录摘要...............................................................I1.前言.............................................................21.1洗衣机的起源与发展........................................................................................21.2本课题的意义....................................................................................................31.3本课题研究的主要内容....................................................................................42.自动洗衣机的概述..................................................52.1自动洗衣机的工作原理....................................................................................52.2全自动洗衣机控制面板及控制系统................................................................72.3自动洗衣机的洗涤与脱水系统.........................................................................82.4自动洗衣机的进水和排水系统.........................................................................92.5自动洗衣机的传动系统、箱体与支承系统..................................................102.6洗衣全过程简述..............................................................................................113.自动洗衣机硬件...................................................143.1进水电磁阀......................................................................................................143.2排水阀与电磁铁..............................................................................................153.3水位开关和水位传感器..................................................................................153.4减速离合器......................................................................................................193.5电机和电容......................................................................................................294.PLC选型.........................................................314.1PLC的主要功能和应用..................................................................................314.2PLC与其他工业控制系统的比较...................................................................324.3PLC的系统硬件设计.......................................................................................335.基于三菱FX2N-24MR软件设计.......................................375.1自动洗衣机的控制要求..................................................................................375.2自动洗衣机的控制流程图。..........................................................................375.3I/O端口配置..................................................................................................395.4三菱FX2N-24MRPLC接线图.........................................................................395.5SWOPC-FXGP/WIN-C软件进行程序设计........................................................396.毕业设计总结与展望...............................................456.1毕业设计总结.................................................................................................456.2工作展望................................................................................................