搜索
四川省高等教育自学考试机械制造与自动化专业毕业论文论文题目基于PLC控制的物料运送系统指导老师罗华学生姓名何杰准考证号8002103461242011年9月14日四川大学本科毕业设计基于PLC控制的物料运送系统I基于PLC控制的物料运送系统机械设计制造及其自动化专业学生：何杰指导老师：罗华摘要：物料运输系统是物流中重要的组成部分，它是不直接进行人工干预的情况下对货物进行自动存取。它是现代工业社会发展的高新技术产物，对加快物流流通、降低成本有着重要的意义。近年来，随着消费水平的提高，越来越多的商家认识到物流运输系统的改善与合理性对商家的发展非常重要，而对于一些小型超市往往要对货物进行分类存放，并建立货物相关信息，时时跟踪，便于对货存信息的掌握，如果仅靠人工，这样比较耗时，不便于商家的发展。本课题针对以上问题主要对货物分类存取控制系统进行了设计：最先是人工建立一个货物信息库。在存货物时，利用条码扫描将货物的信息传入计算机中，并整理将对应的指令传给PLC。然后PLC按指令控制气压系统、步进电机的运动，将货物存放到指定位置；在取货时，控制思路和存货是大致一样，从而实现对货物的分类和存取的功能。在整个过程都满足货物先存先取得原则。关键词：PLC、条码扫描器、步进电机、气压系统、传感器Abstract:Materialtransportsystemisanimportantcomponentoflogistics,itisnotdirecthumaninterventioninthecaseofautomaticaccesstothegoods.Itisamodernindustrialsociety,thedevelopmentofhigh-techproducts,toacceleratetheflowoflogisticsandcostofgreatsignificance.Inrecentyears,withconsumptionlevels,moreandmorebusinessesrealizetheimprovementoflogisticsandtransportsystemsandreasonabledevelopmentofthebusinessisveryimportant,butforsomesmallsupermarketsoftenhavetoclassifythegoodsstored,andtheestablishmentofrelatedgoodsinformation,alwaysfollow,easytostockinformationonthemaster,ifonlybymanual,sothatistime-consumingandnoteasytobusinessdevelopment.Themainsubjectoftheaboveproblemsoftheclassificationsystemforaccesscontroldesign:thefirstistheartificialestablishmentofagoodsinformationdatabase.Goodsinstorage,theuseofbarcodescanningincominggoodsinformationinthecomputer,andfinishinginstructionswillbepassedtothecorrespondingPLC.AndPLCcontrolledpneumaticsystemaccordingtoinstructions,thesteppermotormovement,thegoodsstoredinthespecifiedlocation;inthepickup,thecontrolandinventoryisroughlythesameidea,inordertoachievetheclassificationofgoodsandaccessfunctions.Aremetthroughouttheprocesstoobtainfirstprincipleofpre-existinggoods.Keywords:PLC,barcodescanner,steppermotors,Pressuresystem,sensors四川大学本科毕业设计基于PLC控制的物料运送系统II目录第一章绪论.............................................................................................................11.1引言...................................................................................................................................11.2题的目的和意义..............................................................................................................11.3总体方案...........................................................................................................................11.3.1系统的总体方案...................................................................................................11.3.2系统的特点...........................................................................................................21.4本文研究内容..................................................................................................................2第二章物料运输控制系统的原理.........................................................................32.1PLC简介...........................................................................................................................32.1.1PLC的概述及发展................................................................................................32.1.2PLC的应用特点....................................................................................................42.1.3PLC的应用领域....................................................................................................52.2计算机...............................................................................................................................62.2.1计算机的定义........................................................................................................62.2.2计算机的应用领域...............................................................................................62.3EAN码及条码扫描仪......................................................................................................62.3.1EAN码介绍...........................................................................................................62.3.2条码扫描器MS-890特点....................................................................................72.3.3MS-890的应用领域..............................................................................................8第三章物料运输控制系统的硬件设计.................................................................83.1主要器件的选型...............................................................................................................83.1.1步进电机及其驱动器的选型...............................................................................83.1.2开光的选用.........................................................................................................113.1.3传送带的选择.....................................................................................................113.2控制系统的电气设计.....................................................................................................123.2.1控制系统的具体控制思路..................................................................................123.2.2强电驱动线路......................................................................................................123.2.3PLC接线图.....................................................