本科學(xué)生畢業(yè)設(shè)計(jì)基于PLC的物料分揀控制系統(tǒng)設(shè)計(jì)系部名稱：機(jī)電工程學(xué)院專業(yè)班級(jí)：機(jī)械設(shè)計(jì)制造及其自動(dòng)化08-1班學(xué)生姓名：XXX指導(dǎo)教師：XXX職稱：XXX二一二年六月TheGraduationDesignforBachelorsDegreetheDesignofMaterialSortingBasedonPLCControlSystemCandidate：Specialty：MechanicalDesignandManufacture&AutomationClass：Mechannism08-1Supervisor：2012-06Harbin摘要傳送帶在先進(jìn)制造領(lǐng)域中扮演著極其重要的角色。它可以搬運(yùn)貨物、分揀物品、代替人的繁重勞動(dòng)。可以實(shí)現(xiàn)生產(chǎn)的機(jī)械化和自動(dòng)化，能在有害環(huán)境下操作以保護(hù)人身安全，因此被廣泛應(yīng)用于機(jī)械制造、冶金、電子、輕工和原子能等部門。本文在縱觀了近年來(lái)傳送帶發(fā)展?fàn)顩r的基礎(chǔ)上，結(jié)合傳送帶方面的設(shè)計(jì)，對(duì)傳送帶技術(shù)進(jìn)行了系統(tǒng)的分析，提出了PLC控制的設(shè)計(jì)方案。采用整體化的設(shè)計(jì)思想，充分考慮了軟、硬件各自的特點(diǎn)并進(jìn)行互補(bǔ)優(yōu)化。對(duì)物料分揀傳送帶的整體結(jié)構(gòu)、執(zhí)行結(jié)構(gòu)、驅(qū)動(dòng)系統(tǒng)和控制系統(tǒng)進(jìn)行了分析和設(shè)計(jì)。在其驅(qū)動(dòng)系統(tǒng)中采用氣動(dòng)驅(qū)動(dòng)，控制系統(tǒng)中選擇PLC的控制單元來(lái)完成對(duì)金屬工件根據(jù)工件大小進(jìn)行大中小分類，并進(jìn)行計(jì)數(shù)；對(duì)非金屬材料通過(guò)傳送帶向后傳送，并進(jìn)行計(jì)數(shù)；實(shí)現(xiàn)對(duì)傳送帶啟動(dòng)，停止的控制等功能。通過(guò)以上部分的工作，得出了經(jīng)濟(jì)型、實(shí)用型、高可靠型物料分揀傳送帶的設(shè)計(jì)方案，對(duì)其他經(jīng)濟(jì)型PLC控制系統(tǒng)的設(shè)計(jì)也有一定的借鑒價(jià)值。關(guān)鍵詞：PLC；物料分揀；傳送帶；控制系統(tǒng)；自動(dòng)化ABSTRACTTheconveyorbeltplaysanextremelyimportantroleinthefieldofadvancedmanufacture.Itcanhandlecargo,sortitemsandtaketheplaceoftheheavylaborofthepeople.Itcanachievethemechanizationandautomationofproduction,andcanoperateinhazardousenvironmentsinordertoprotectthepersonalsafety,whichiswidelyusedinmachinerymanufacturing,metallurgy,electronics,lightindustryandatomicenergysector.Thisarticlehasinvestigatedthelatestdevelopmentofconveyorbelt,combinedthedesignofconveyorbelt,carriedoutasystematicanalysisontheconveyorbelttechnology,andputforwardaPLCcontrolprogram.Thisdesignusestheideaofoveralldesign,andgivesfullconsiderationtothesoftwareandhardwarecharacteristicsandcomplementaryoptimization.Ithasalsoanalyzedanddesignedtheoverallstructureofthematerialsortingconveyor,theexecutivestructureofthedrivesystemandcontrolsystem.Initsdrivesystemandcontrolsystem,pneumaticdriveandPLCscontrolunithavebeennotonlyusedtoclassifymediumandsmallmetalmaterialsandcountbasedonthematerialssize,butalsousedtotransmitandcountnon-metallicmaterialsbyconveyor,whichachievesthefunctionsontheconveyorbelttostart,stop,control.Throughouttheabovework,thisdesignhasobtainedaneconomical,practical,highlyreliablematerialsortingconveyordesignprogram,whichalsohasareferencevalueforo