武汉科技大学毕业设计（论文）题目：切纸机--摘要根据程控切纸机的工作过程，为克服继电器、接触器控制故障率高、可靠性低等缺点，设计了一套以PLC为核心的切纸机裁切自动控制系统。它利用PLC完善的内部功能，有效而可靠的实现了自动裁切、自动送纸等全自动控制。本文首先对现代可编程控制技术的应用现状、发展趋势作了较为详细的介绍，并简要介绍了切纸机的产生背景和应用意义。简单概括了切纸机的电气系统的总体方案设计，并比较了工控机、可编程控制器等控制方案的优缺点。对于三菱公司的F2-20MR型PLC也做了一定的介绍。之后详细讲述了程控切纸机系统主体软硬件的研制过程和设计方法。本设计的关键就是要在原继电器控制电路的基础上，经过合理的转换，从而设计出具有相同功能的控制程序。关键词：PLC;继电器;切纸机AbstractAccordingtotheworkingprocessofthecutterprogram,toovercometherelays,highreliability,lowfailureratecontrol,asetoffaultsinPLCisthecoreofcuttercuttingautomaticcontrolsystem.ItUSESPLCperfectinternalfunctions,effectiveandreliablerealizesautomaticpaperfeeding,automaticcuttingfullautomaticcontrol,etc.Thispaperfirstlymodernprogrammablecontroltechnologyapplicationsituationandthedevelopmenttrendsareintroduced,andbrieflyintroducesthebackgroundandcutter.Simplysummarizedcutterelectricalsystem,andtheoveralldesignofindustrialcomputer,comparestheprogrammablecontrollertocontrolscheme.IntheF2-20MRmitsubishitypePLCmadecertain.Afterdiscoursedprogram-controlledcuttersystemhardwareandsoftwaredevelopmentprocessandthemaindesignmethod.Thekeyoriginallydesignedisthatshouldbeonthebasisofcontrolcircuitoforiginalrelay,throughrationalconversion,thusdesignPLCcontrolprocedurewithsamefunctionKeyWords：PLC;Relay;Cardboardcuttingmachine目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc263937192"摘要PAGEREF_Toc263937192\h1HYPERLINK\l"_Toc263937193"AbstractPAGEREF_Toc263937193\h2HYPERLINK\l"_Toc263937194"引言PAGEREF_Toc263937194\h1HYPERLINK\l"_Toc263937195"1绪论PAGEREF_Toc263937195\h2HYPERLINK\l"_Toc263937196"1.1切纸机的基本概况PAGEREF_Toc263937196\h2HYPERLINK\l"_Toc263937197"1.2切纸机的基本设计要求PAGEREF_Toc263937197\h2HYPERLINK\l"_Toc263937198"2切纸机的总体设计方案PAGEREF_Toc263937198\h3HYPERLINK\l"_Toc263937199"2.1课题分析PAGEREF_Toc263937199\h3HYPERLINK\l"_Toc263937200"2.2设计思路PAGEREF_Toc263937200\h3HYPERLINK\l"_Toc263937201"3硬件设计与分析PAGEREF_Toc263937201\h5HYPERLINK\l"_Toc2639