毕业设计说明书基于PLC分拣系统设计专业电气工程及其自动化学生姓名项雷班级BMZ电气091学号0961402117指导教师陈中完成日期2013年6月7日盐城工学院本科生毕业设计说明书(2013)基于PLC分拣系统设计摘要:随着社会的不断发展,市场的竞争也越来越激烈,因此各个生产企业都迫切地需要改进生产技术,提高生产效率,尤其在需要进行材料分拣的企业,以往一直采用人工分拣的方法,致使生产效率低,生产成本高,企业的竞争能力差,材料的自动分拣已成为企业的唯一选择。针对上述问题,利用PLC技术设计了一种成本低,效率高的材料自动分拣装置,在材料分拣过程中取得了较好的控制效果。物料分拣采用可编程控制器PLC进行控制,能连续、大批量地分拣货物,分拣误差率低且劳动强度大大降低,可显著提高劳动生产率。而且,分拣系统能灵活地与其他物流设备无缝连接,实现对物料实物流、物料信息流的分配和管理。其设计采用标准化、模块化的组装,具有系统布局灵活,维护、检修方便等特点,受场地原因影响不大。同时,只要根据不同的分拣对象,对本系统稍加修改即可实现要求。PLC控制分拣装置涵盖了PLC技术、气动技术、传感器技术、位置控制技术等内容,是实际工业现场生产设备的微缩模型。应用PLC技术结合气动、传感器和位置控制等技术,设计不同类型材料的自动分拣控制系统。该系统的灵活性较强,程序开发简单,可适应进行材料分拣的弹性生产线的需求。这篇论文主要介绍了PLC控制系统的硬件和软件设计,以及一些调试方法。本论文采用三菱FX2N系列的PLC实现控制分拣装置的系统设计。主要内容是在工艺要求的基础上,首先进硬件系统的设计,然后再进行梯形图的编程,并对梯形图中关键步骤进行了解释和说明。最后在三菱PLC学习软件FX-TRN-BEG-C仿真软件进行了仿真研究,通过仿真结果,说明硬件和软件编制的正确性。关键词:分拣;PLC;三菱;电气自动化盐城工学院本科生毕业设计说明书(2013)PLC-basedsortingsystemdesignAbstract:Withthecontinuousdevelopmentofincreasinglyfiercemarketcompetition,thevariousproductioncompaniesarethereforeanurgentneedtoimproveproductiontechnology,improveproductionefficiency,especiallyintheneedformaterialsortingbusinessinthepasthasbeenusingmanualsortingmethods,resultinginlowproductivity,highproductioncosts,thecompetitivenessofenterprisesispoor,automaticsortingofmaterialshasbecometheonlyoption.Inresponsetotheseproblems,theuseofPLCtechnologytodesignalow-cost,highefficiencymaterialsautomaticsortingdevice,materialsortingprocessachievedgoodcontroleffect.SortingofmaterialsusingprogrammablecontrollersPLCcontrol,continuous,largequantitiesofcargosorting,sortingerrorrateislowandthelaborintensitygreatlyreduced,cansignificantlyimprovelaborproductivity.Moreover,thesortingsystemcanbeflexiblyconnectedseamlesslywithotherlogisticsequipment,toachieverealmaterialslogistics,materialsdistributionandmanagementofinformationflow.Thedesignusesstandardized,modularassembly,havingaflexiblesystemlayout,maintenance,overhaulandconvenientfeatures,subjecttositecauseslittleimpact.Meanwhile,aslongastheobjectdependingonthesorting,thesystemrequireslittlemodificationcanberealized.PLCcontrolsortingdevicecoversPLCtechnology,pneumatictechnology,sensortechnology,positioncontroltechnologyandothercontent,istheactualindustrialfieldproductionequipmentminiatures.ApplicationofPLCtechnologycombinedwithpneumatic,sensorsandpositioncontroltechnology,thedesignofautomaticsortingofdifferenttypesofmaterialscontrolsystem.Strongflexibilityofthesystem,programdevelopmenteasysortingofmaterialscanbeadaptedtoflexibleproductionlinerequirements.ThispaperintroducesthePLCcontrolsystemhardwareandsoftwaredesign,aswellassomedebuggingmethods.Inthisthesis,MitsubishiFX2NseriesPLCsortingdeviceforcontrolsystemdesign.Maincontentsarebasedontherequirementsintheprocess,thefirstadvancedhardwaresystemdesign,andthentheladderprogramming,andthekeystepsoftheladderexplanation.FinallylearningsoftwareinMitsubishiPLCFX-TRN-BEG-Csimulationsoftwareforthesimulation,thesimulationresultsillustratethecorrectnessofhardwareandsoftwaredevelopment.Keywords:Sortout;PLC;Mitsubishi;Electricalautomation盐城工学院本科生毕业设计说明书(2013)目录1绪论............................................................................................................................11.1选题背景与意义...........................................................................................11.2分拣系统研究的主要内容...........................................................................12系统方案设计............................................................................................................12.1设计要求.......................................................................................................12.2系统结构框图...............................................................................................22.3主要控制器件选择.......................................................................................22.4其他外围电气原件的选择简介...................................................................32.5编程语言的选择...........................................................................................33PLC简介基本结构和工作原理简介.....................................................................43.1PLC的发展史与简介...................................................................................43.2PLC的基本构成...........................................................................................53.3PLC的基本工作原理...................................................................................53.4PLC的扫描工作方式...................................................................................63.5三菱PLC仿真软件FX-TRN-BEG-C说明................................................74PLC分拣系统的设计...........................................................................................104.1系统功能的介绍和控制的细节.................................................................104.2分拣系统的I/O口清单..............................................................................104.3分拣系统硬件接线图.................................................................................124.4PLC分拣系统的电路原理图.....................................................................134.5梯形图及部分程序说明..........