精品毕业论文防尘扣盖注塑模毕业设计（cad）

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1、摘要注塑模具是现在所有塑料模具中使用最广的模具，能够成型复杂的高精度的塑料制品。本课题是对防尘扣盖进行模具设计并分析加工工艺。本模具考虑到年产量、复杂程度及塑件精度要求，选择一模两腔结构较为合适。该套模具一水平分型面和两个侧向抽芯的设计，以使制品顺利脱模。主流道采用反锥度冷料穴，脱模时方便将主流道凝料带出。分流道采用平衡对称式分布，确保熔融塑料几乎能同时到达每个型腔的进料口。为了使动、定模能够准确地动作，导向定位机构利用导柱与导套的配合。顶出机构是推杆推出的一次脱出机构。考虑到零件的位置关系，冷却水道采用直线式分布，以便冷却均匀、快速。采

2、用Pro/E来实现防尘扣盖的三维设计及模具成型零件设计，运用Moldflow分析制件的成型质量，再实现模架的装配，并在产品设计及模具装配过程中，辅助以必要的理论计算，将计算机辅助设计与自己的理论计算结合起来，可以大大缩短产品研发周期、模具设计周期，提高产品设计及模具设计的准确性、产品成型质量，降低产品研发、模具设计成本。在设计过程中制定了合理的工艺方案，满足了大批量生产要求。关键词：注塑模具防尘扣盖Pro/EMoldflowABSTRACTAtpresent,injectionmoldingistheplasticsmouldthatha

3、sbeingusedmostextensively,itcanmoldthecomplexandhighaccurateplasticproduct.Thesubjectisaboutthemolddesignofthedustproofbucklecoverandtheprocessanalysis.Consideringtheannualoutput,thedegreeofcomplexandtherequirementofprecisionoftheplasticproduct,twocavitiesinamouldisamorem

4、anner.Alevelhorizontalpartingsurfaceandtwosidecorepullingmechanismthsarechoosedasthepartinglinetomakethemoldofthebucklecoverdemoldedsuccessfully.Thespruceusesthecold-slugwellwithbacktapertopullthesprucesolidifiedmaterialswhenejecting.Therunnerisdesignedtobebalancedandsymm

5、etricaldistribution,ensurethatmeltingplasticcouldreacheachcavity’sgatealmost.SuspensionandPositioningmechanismusematchedguidepillarandguidesleevetomakemovablemould,fixedmouldtoworkaccurately.Theknockoutsusesonceejectingmechanismthatlifterpushesout.Bytherelationofthepositi

6、onofeachpart,coolingchannelsaredesignedtolinearchannelstocooleffectively,quickly.WithPro/Engineertoimplementthree-dimensionaldesignofthedustproofbucklecoverandthedesignofmoldingparts,andshapingqualityofpartwasanalyzedbyMoldflow,thenaccomplishtheassemblageofthemoldwiththea

7、ssistanceofessentialtheorycalculatemixedwithcomputer-aideddesign.Itwouldnotonlyshortenthecycleofproductresearchandmolddesign,andimprovetheprecisenessandtheproductshapingquality,butalsolowerthecostoftheresearch.Havingmadetherationalcraftschemeinthedesignprocess,soithasmett

8、herequirementofproducinginenormousquantities.Keywords:injectionmolddustproofbucklecoverPro/EMold