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1、(二零屆) 畢業(yè)論文(設(shè)計(jì))割草機(jī)大防護(hù)罩注塑模具設(shè)計(jì)39摘要本次設(shè)計(jì)的課題是割草機(jī)大防護(hù)罩注塑模具設(shè)計(jì)。割草機(jī)屬于園林工具,所以材料是當(dāng)前應(yīng)用較為廣泛的熱塑性工程塑料ABS。在設(shè)計(jì)中使用單腔模形式,可進(jìn)行大批量生產(chǎn)。設(shè)計(jì)過程包括設(shè)計(jì)準(zhǔn)備、塑件設(shè)計(jì)、模具設(shè)計(jì)、零件圖的繪制和畢業(yè)設(shè)計(jì)論文的完成等五個(gè)環(huán)節(jié)。其中,塑件設(shè)計(jì)和模具設(shè)計(jì)是重要環(huán)節(jié)。在整個(gè)模具設(shè)計(jì)過程中,涉及到了塑件的結(jié)構(gòu)設(shè)計(jì)、注塑機(jī)的選擇及注塑機(jī)的一些重要工藝參數(shù)的校核,并詳細(xì)敘述了模具設(shè)計(jì)中的分型面設(shè)計(jì)、澆注系統(tǒng)設(shè)計(jì)、脫模機(jī)構(gòu)設(shè)計(jì)、冷卻系統(tǒng)設(shè)計(jì)等。在模具設(shè)計(jì)過程中主要運(yùn)用了Pro/ENGINEER5.0及其EMX6.0模塊來完成整
2、個(gè)設(shè)計(jì)工作,此外還利用了AutoCAD2004軟件進(jìn)行裝配圖及零件圖的繪制。同時(shí),在設(shè)計(jì)過程中,通過查閱大量資料、手冊(cè)、期刊等,結(jié)合教材上的知識(shí)對(duì)注塑模具有了系統(tǒng)的認(rèn)識(shí),拓寬了視野,豐富了知識(shí),為將來獨(dú)立完成模具設(shè)計(jì)積累了一定的經(jīng)驗(yàn)。關(guān)鍵詞:防護(hù)罩,注塑模具,Pro/ENGINEER5.039DesignofInjectionMoldforMowerprotectivecasingAbstractThisdesignissueisDesignofInjectionMoldforMowerprotectivecasing.TheMowerhandlebelongstogardeningtoo
3、ls.Therefore,usesthematerialiscurrentappliesmorewidespreadthermoplasticABS.Inthedesignusesone-moldandone-cavityforminthiscase.Canbemass-produced.Designprocessincludingdesignpreparation,plasticpartdesign,molddesign,partsdrawingandthecompletionofgraduationthesisthefivelinks.Amongthem,theplasticpartd
4、esignandmolddesignisanimportantpart.Inthemolddesignprocess,involvingthestructuraldesignofplasticparts,thechoiceofinjectionmoldingmachineandinjectionmoldingmachinechecksomeimportantprocessparameters,andmolddesigndescribedindetailinthesub-surfacedesign,Gatingsystemdesign,ejectormechanismdesign,cooli
5、ngsystemdesign.MainlyinthemolddesignprocessusingthePro/ENGINEER5.0andEMX6.0moduletocompletethedesignwork.Inaddition,useofAutoCAD2004SoftwareAssemblydrawingandpartsDrawings.Atthesametime,inthedesignprocess,throughaccesstovastamountsofdata,manuals,periodicals,etc.,withmaterialsontheknowledgeoftheinj
6、ectionmoldofthestructuresystemwiththeunderstanding,broadenthehorizonsandenrichtheknowledge,completeindependenceforthefuturediedesignhasaccumulatedsomeexperience.Keywords:protectivecasing,Injectionmold,Pro/ENGINEER5.039目錄摘要I1緒論11.1課題的來源11.2課題的意義11.3塑料模具的國內(nèi)外發(fā)展現(xiàn)狀11.3.1我國模具的發(fā)展現(xiàn)狀11.3.2國外模具的發(fā)展現(xiàn)狀11.3.2我國
7、模具發(fā)展的總結(jié)與期望21.4課題研究的主要內(nèi)容22塑料注射模具工藝設(shè)計(jì)及總體設(shè)計(jì)32.1塑料的成形種類32.2注射成形的工藝過程32.2.1注射成型工藝原理32.2.2注射成形工藝過程42.2.3注射成形工藝參數(shù)42.3塑料注射模具的設(shè)計(jì)步驟42.3.1設(shè)計(jì)前的準(zhǔn)備工作42.3.2填寫塑件成型工藝卡52.3.3注射模具結(jié)構(gòu)設(shè)計(jì)步驟52.4割草機(jī)大防護(hù)罩塑件52.4.1模具設(shè)計(jì)分析52.4.2注塑件的材料62.4.3注塑模