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1、洛陽理工學(xué)院畢業(yè)設(shè)計(jì)(論文)I油窗端蓋注塑模具設(shè)計(jì)摘要塑料工業(yè)是當(dāng)今世界上增長最快的工業(yè)門類之一,而注塑模具是其中發(fā)展較快的種類,因此,研究注塑模具對了解塑料產(chǎn)品的生產(chǎn)過程和提高產(chǎn)品質(zhì)量有很大意義。注射模技術(shù)的不斷發(fā)展需要越來越多的工藝流程。注射成型過程中最重要的問題是模具的正確設(shè)計(jì)。從根本上說,注射模具包括澆口和澆注系統(tǒng),另一部分是放置頂出系統(tǒng)。模具零件是在分型面被定位的。注射模具型腔選擇等設(shè)計(jì)計(jì)算要求掌握加工材料、注射機(jī)和模具等方面的準(zhǔn)確知識(shí)。模具的制造成本隨著型腔數(shù)目的增加而增加,而相關(guān)的加工費(fèi)用減少了。一個(gè)給定的模具零件的生產(chǎn)周期取決于壁厚、注射速度、收縮率、模內(nèi)材料的冷卻時(shí)間、冷卻的
2、效能及必要的輔助時(shí)間,如壓力持續(xù)時(shí)間、排氣時(shí)間及延遲時(shí)間等。本設(shè)計(jì)介紹了注射成型的基本原理,特別是單分型面注射模具的結(jié)構(gòu)與工作原理,對注塑產(chǎn)品提出了基本的設(shè)計(jì)原則;詳細(xì)介紹了冷流道注射模具澆注系統(tǒng)、溫度調(diào)節(jié)系統(tǒng)和頂出系統(tǒng)的設(shè)計(jì)過程,通過本設(shè)計(jì),可以對注塑模具有一個(gè)初步的認(rèn)識(shí),注意到設(shè)計(jì)中的某些細(xì)節(jié)問題,了解模具結(jié)構(gòu)及工作原理。關(guān)鍵詞:塑料模具,參數(shù)化,分型面,澆注系統(tǒng),模具型腔。洛陽理工學(xué)院畢業(yè)設(shè)計(jì)(論文)IITHEPLASTICINJECTMODLEDESIGNABSTRACTplasticindustryisintheworldgrowsnowoneofquickestindustrycl
3、asses,butcaststhemouldisdevelopmentquicktype,therefore,theresearchcaststhemoldtounderstandtheplasticproducttheproductionprocessandimprovestheproductqualitytohavetheverybigsignificance.Thecontinuingdevelopmentofinjectionmoldtechnologydemandsmoreandmoreoftheprocesses.Themostimportantproblemintheproces
4、sofinjectionmoldingisundoubtedlythecorrectdesignofinjectionmold.Basicallytheinjectionmoldconsistsoftwohalves.Onemoldhalfcontainsthespruebushingandrunnersystem,theotherhalfhousestheejectionsystem.Themoldedpartislocatedatthepartingline.Tosetupacalculationconceivingthechoiceofcavitiesinaninjectionmoldr
5、equiresaccurateknowledgeofthematrrialtobeprocessed,oftheinjection-moldingmachineandofthemolds.Themoldcostsincreasewiththerisingnumberofcavitiesandtherelativemachinecostsdecrease.Theproductiontimerequiredforagivenmoldedpartdependsonthewallthicknes,theinjectionspeed,therecoveryrate,thetimerequiredtoco
6、llthemoldedmaterial,thecoolingcapacityofthemoldandthenecessaryincidentaltimesuchasdurationofpressureholdingtime,ejectiontime,delaytime,ect.Thisdesignintroducedtheinjectiontakesshapethebasicprinciple,speciallysingleisdividedtheprofiletoinjectthemoldthestructureandtheprincipleofeork,tocasttheproductto
7、proposethebasicprincipleofdesign;Introductedindetailthecoldflodchannelinjectionevilspiritmoldpoursthesystem,thetemperaturecontralsystemandgoesagainstthesystemthedesignprocess,andhasgiventheexplanationtothemoldintensityrequest;Throughthisdesign,maytocastthemoldtohaveapreliminaryunderstanding,notesint
8、hedesigncertaindetailquestion,understandsthemoldstructureandtheprincipleofwork;ThroughtothePROGRAMstudy,mayestablishthesimplecomponentsthecomponentsstorehouse,thuseffectiveenhancementeorking洛陽理工學(xué)院畢業(yè)設(shè)計(jì)(論文)IIIefficiency.KEYWORDS:Theplasticmold,theparameterization,inlays,dividestheprofile洛陽理工學(xué)院畢業(yè)設(shè)計(jì)(論文)
9、IV目錄前言.1第一章:制件的結(jié)構(gòu)與工藝性分析.21.1制件相關(guān)信息.21.2材料的相關(guān)性質(zhì).31.2.1基本特性.31.2.2主要用途.31.2.3成型特點(diǎn).31.3塑件的脫模斜度.41.4塑件的尺寸精度及表面質(zhì)量要求.4第二章:初選注射機(jī).62.1計(jì)算塑件體積和最大投影面積.62.2選擇壓力機(jī).62.3確定型腔數(shù)目.7第三章模具設(shè)計(jì).93.1型腔的分布設(shè)置.93.2分型面的確定.93.3澆口的確定原則.103.4澆注系統(tǒng)的確定.113.4.1主流道的設(shè)計(jì).113.4.2分流道的設(shè)計(jì).123.4.3冷料穴的設(shè)計(jì).133.4.4澆口的相關(guān)參數(shù)選擇.143.5成型零部件的結(jié)構(gòu)設(shè)計(jì).143.5.1
10、型腔的結(jié)構(gòu)設(shè)計(jì).143.5.2型芯的結(jié)構(gòu)設(shè)計(jì).153.6模具成型零部件尺寸計(jì)算.153.5.1計(jì)算成型零部件尺寸要考慮的因素.163.5.2制件尺寸的公差轉(zhuǎn)換.16洛陽理工學(xué)院畢業(yè)設(shè)計(jì)(論文)V3.5.3成型零部件尺寸計(jì)算.173.7模架的選用.203.7.1模架型號(hào)的確定.203.7.2模架具體尺寸的確定.213.8結(jié)構(gòu)零部件的設(shè)計(jì).223.8.1支承板的設(shè)計(jì).223.8.2墊塊的設(shè)計(jì).223.8.3定模座板和動(dòng)模座板的設(shè)計(jì).223.8.4導(dǎo)柱的設(shè)計(jì).233.8.5導(dǎo)套的設(shè)計(jì).243.8.6設(shè)計(jì)導(dǎo)柱導(dǎo)套需要注意的事項(xiàng).243.9推出機(jī)構(gòu)的設(shè)計(jì).243.9.1推桿的設(shè)計(jì).25第四章冷卻系統(tǒng)的設(shè)計(jì).284.1冷卻水孔直徑的確定.284.2冷卻水回路的布置原則.28第五章注射機(jī)的相關(guān)校核.295.1注射機(jī)額定注射量的校核.295.2注射壓力的校核.295.3鎖模力的校核.295.4模具安裝尺寸的校核.305.41噴嘴尺寸校核.305.4.2模具厚度校核.305.5開模行程的校核.31結(jié)論.32謝辭.33參考文獻(xiàn).34