u盘盖注塑模模具设计

UA1A0A2A3A4A5A6A7A8A9毕业设计设计课题U盘盖注塑模模具设计系别机械工程系专业模具设计与制造班级07模具（3）姓名学号指导教师完成时间10年4月UA10A11A12A13A14A15A16A17A18A191目录摘要3一、塑件及成型工艺分析3A20A21A21A22A22A23A24A25A26A27A25A26A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A283A20A29A29A22A22A30A23A31A23A32A31A23ABSA25A33A34A35A36A37A38A39A40A41A42A33A34A35A36A38A39A40A41A43A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A284A20A44A44A22A22ABSA25A31A45A26A27A31A45A28A28A28A28A28A28A28A28A28A28A28A28A28A28A285二、拟定模具结构形式6A20A21A21A22A22A26A36A46A47A48A25A49A50A46A47A25A49A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A286A20A29A29A22A22A49A50A36A51A43A52A39A53A54A55A56A50A36A52A39A53A54A55A56A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A287A20A44A44A22A22A57A58A59A60A61A56A25A49A50A57A58A59A60A61A56A25A49A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A287三、注射机型号的确定8A20A21A21A22A22A62A63A33A34A52A25A62A63A33A34A64A65A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A288A20A29A29A22A22A33A34A66A36A67A25A68A50A33A34A66A36A25A68A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A288A20A44A44A22A22A36A51A43A52A39A33A34A66A69A70A40A41A42A43A25A71A72A33A34A66A69A25A71A28A28A28A28A28A28A28A28A28A289四、浇注系统形式和浇口的设计11A20A21A21A22A22A73A74A75A25A76A64A73A74A76A64A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2812A20A29A29A22A22A77A32A78A25A76A64A76A64A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2813A20A44A44A22A22A26A74A75A25A76A64A76A64A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2813A20A79A79A22A22A80A81A25A76A64A80A81A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2814A20A82A82A22A22A80A33A83A84A25A85A86A83A84A85A86A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2815A20A87A87A22A22A80A33A83A84A88A32A89A90A25A64A65A83A84A32A89A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2815五、A80A33A83A84A91A92A46A74A37A93A89A25A89A90A64A65A83A84A46A74A25A89A90A64A28A28A28A28A28A28A28A28A28A28A2815A20A21A21A22A22A23A24A25A35A36A94A95A96A94A95A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2816A20A29A29A22A22A97A49A23A24A98A99A100A101A102A103A97A49A99A100A101A102A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2816A20A44A44A22A22A36A51A36A104A91A98A99A25A64A65A25A64A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2817A20A79A79A22A22A36A51A105A24A106A107A105A24A108A108A109A107A25A71A72A109A25A71A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2819六、模架的确定和标准件的选用20A20A21A21A22A22A50A57A110A111A110A111A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2820A20A29A29A22A22A112A57A113A50A111A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2820A20A44A44A22A22A114A115A111A114A115A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2820A20A79A79A22A22A116A117A116A117A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2820A20A82A82A22A22A118A57A110A111A110A111A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2821A20A87A87A22A22A57A119A57A119A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2821A20A120A120A22A22A121A111A121A111A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2821A20A122A122A22A22A121A123A113A50A111A121A123A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2821七、合模导向机构设计21A20A21A21A22A22A124A125A66A60A25A126A89A76A64A124A125A66A60A126A89A76A64A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2821A20A29A29A22A22A124A127A25A76A64A124A127A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2822A20A44A44A22A22A124A119A25A76A64A124A119A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A28A2822UA128A129A130A131A132A133A134A135A136A1372A138A139A139A140A140A141A142A143A144A145A143A146A147A148A149A141A142A143A144A143A146A147A148A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15023八、脱模推出机构的设计24A151A152A152A153A153A154A155A156A157A158A159A160A161A162A163A164A154A155A156A157A159A160A161A162A163A164A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15024A151A165A165A153A153A166A167A156A157A160A168A169A170A171A166A167A156A157A168A169A170A171A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15024A151A172A172A153A153A166A167A160A156A157A158A159A166A167A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15024A151A173A173A153A153A154A155A174A160A162A175A154A155A174A160A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15025A151A176A176A153A153A154A155A174A177A178A154A155A174A177A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15025九、侧向分型与抽芯机构的设计26A151A152A152A153A153A179A180A181A182A183A184A185A186A182A160A187A188A179A180A181A182A184A185A186A182A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15026A151A165A165A153A153A189A190A191A189A190A151A192A193A155A193A155A193A155A153A153A160A194A195A170A196A197A198A194A195A170A196A150A150A150A150A150A150A150A150A150A150A150A15026A151A172A172A153A153A189A190A191A160A199A193A200A171A189A190A191A160A193A200A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15026A151A173A173A153A153A189A190A191A160A201A190A200A171A189A190A191A160A201A190A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15026A151A176A176A153A153A166A167A202A192A193A155A203A154A155A204A205A160A161A162A166A167A202A192A193A155A154A155A204A205A150A150A150A150A150A150A150A150A150A150A150A150A15027A151A206A206A153A153A161A162A207A208A161A162A207A208A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15027A151A209A209A153A153A210A211A212A213A160A162A175A183A177A178A210A211A212A213A183A177A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15027十、排气系统的设计28十一、温度调节系统的设计28十二、模具的装配、调试与维29A151A152A152A153A153A155A214A160A215A216A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15029A151A165A165A153A153A155A214A160A217A218A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15030A151A172A172A153A153A155A214A160A219A220A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15031A151A173A173A153A153A155A214A160A221A222A204A205A204A205A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A150A15031毕业设计小结33谢辞35参考文献36UA223A224A225A226A227A228A229A230A231A2323U盘盖注塑模模具设计摘要毕业设计课题的制品是最常见的U盘的盖子。U盘是闪存的一种，有小巧便于携带、储存量大、价格便宜的特点。U盘盖可用于保护U盘盖USB接口处的磨损，延长了U盘的使用寿命。制品材料为高频特种热塑性塑料ABS（丙烯腈丁二烯苯乙烯共聚物），材料收缩率仅0407。由制品图可知，该制品尺寸较小，形状不规则，采用推件杆推出塑件，另外，塑件表面有通孔，为使制品顺利脱模而又不影响制品要求，需采用侧向分型G994G6289G14467G7438G7512，是G7424模G1867G1025设计的要点。G1866G1194G13479G7512设计G3324G8504不G1889G17196G17860，G16826G13466G1881G4493见G2530面G12468G14422。关键词一模G3247G14120G10935G2524模（G7024G9381G3371）侧向分型一G8437推出二G8437分型一、塑件成型工艺性分析（一）塑件的分析1塑件UA223A224A225A226A227A228A229A230A231A2324如图1所示2塑料名称ABS3状态颗粒状4生产纲领大批量生产5塑件的结构及成型工艺性分析（1）结构分析如下该塑件作为U盘的盖子，外形为倒有圆角的立方体，其中俩个角做了改变，为倒角和圆弧，制件上有一个通孔。制件的内部俩侧之间有角度要求，所以在模具设计和制造上要有精度的定位措施和良好的加工工艺以保证塑件精度。（2）成型工艺分析如下由于制件的外表面要求平整、光洁、美观，无棱角；精度等级采用一般精度5级；脱模斜度该塑料件高为2613MM，宽度为503MM，但由于原料在注G4568G7114G8981G2172G5627G7509好，G3252G8504，塑件G993G6930脱模斜度。（二）热塑性塑料ABS的注射成型过程及工艺参数1注射成型过程（1）成型G2081的G1946G3803。G4557ABS的G14406G8913、G13466度、和G3355G2260度等G17839G15904G7828G20576。G5194G1017G7696G6523制G9167加G2070的G2559量。由于ABSG2572G9299G5627G5468G4579，G117701G705，所以成型G2081G19668G12257G5506G17839G15904G5190G10169G3800G10714G2375G2499。（2）注G4568G17819G12255塑料在注G4568G7438料G7754内G17839G15904加G9921塑G2282G2052G8981G2172状G5589G2530，由模具的G8981注G13007G13491G17839G1849模具型G14120成型，其G17819G12255G2499分为G1817模、保G2399、G6930G8680和G3278G2282G23个G19466G8585。UA233A234A235A236A237A238A239A240A241A2425（3）塑件的G2530G3800G10714G6930G2052G9900G12677G18336，G13499G13505G9921G3278G2282G4448G1852，G5194G9052G19512G5224G2159。2ABS的注射工艺参数（1）注G4568G7438G15758G7450G5347（2）G15758G7450G17728G17907（G85G18MG76G81）20G79450（3）料G12582G9213度（G263）G2530G8585G275G794G270中G8585165G7941G270G2081G85851G270G794200（G23）G2955G3080G9213度（G263）1G260G7941G270G2955G3080形G5347G11464通G5347（5）模具G9213度（G263）50G794G270（6）注G4568G2399G2159（G48G83G68）60G794100（G26）保G2399G2399G2159G2159（G48G83G68）60G794100（G27）成型G7114间（G86）注G456820G794G280；保G23990G7945；G1931G2376G7114间20G794150；成型G2620G741160G794100（三）ABS的性能分析1使用性能G13520G2524G5627G14033良好，G1926G1999G5390度G17751高，G2282G4410G12295定G5627，G11017G5627G14033良好。G17878于制作一般G7438G7812G19658件、G1955G6717G13796G11964G19658件、G1268G2172G19658件和G11017G16771结构G19658件。2成型性能（1）无定G5627料，G8981G2172G5627中等，G8616G13870G14531G1069G9923、AS差，但G8616G13870碳酸酯、G13870氯G1069G9923好，溢边值为00G23毫米左右。（2）G2572G9299G5627G5390，必须G1817分G5190G10169，表面要求光G8913的塑件须经长G7114间的预G9921G5190G10169。（3）成型G7114宜取高料G9213、高模G9213，但料G9213G17819高易分解（分解G9213度为250G263）。3ABS的主要性能指标A243A244A245A246A247A245A248A249A250A251A252A253A254A255A15A252A253A252A11A17A0A1A244A245A4A2A3A23A5A25A6A7A8A245A246A248A249A250A245A247A251A254A253A5A11A15A254A253A23A5A29A9A1A244A245A4A2A3A5A254A31A10A12A255A14A13A245A246A36A251A254A253A255A15A254A253A14A29A16A18A19A20A6A245A21A2A3A252A253A5A42A22A24A26A244A245A46A23A254A15A252A254A5A9A30A1A244A245A4A2A3A252A255A11A48A27A245A46A252A250A254A15A252A11A254A30A47A18A19A20A6A245A21A2A3A255A253A5A51A28A32A33A12A245A246A36A251A254A253A14A15A254A253A34A9A35A1A244A245A4A2A3A34A252A15A23A5A57A37A38A245A246A39A245A246A40A247A62A63A251A251A252A11A5A254A9A41A1A244A245A4A2A3A34A55A66A67A68A69A43A44A45A49A74A75A50A20A52A53A51A54A56A58A59A60A61A64A86A87A65A255A89A255A23二、拟定模具结构形式UA70A71A72A73A76A77A78A79A80A816（一）分型面位置的确定1分型面的选择原则（1）有利于保证塑件的外观质量（2）分型面G5224选择在塑件的最大截面G3800（3）尽G2499G14033使塑件在G2172模一侧（G23）有利于保证塑件的尺寸精度（5）尽G2499G14033满足塑件的使用要求（6）尽G2499G14033G1955少塑件在G2524模方向的投影面积（G26）长型芯G5224置于开模方向（G27）有利于排G8680（G28）有利于简G2282模具结构该塑件在G17839G15904模具设计G7114，已经G1817分考虑的上述原则，同G7114从所提供的塑件图样G2499看出该塑件表面有6一通孔，所以在分型G7114G19668G17839G15904侧向抽芯分型。2分型面选择方案（1）分型面选择方案I。第一分型面与开模方向垂G11464；第二分型面与开模方向平G15904。分型面的形G5347与位置如图2所示。G2172模型芯（长为36）利用开模G2172作从塑件中抽出，塑件外侧凸凹利用瓣G2524模或滑块来成型，分型定距短（单边距离为G27MM左右），整个塑件成型精度G8616G17751高，模具结构也G8616G17751简单。（2）分型面选择方案II。第一分型面与开模方向垂G11464；第二分型面与开模方向平G15904，如图3所示。塑件的表面成型精度G993高，且制件两端面G993允许有分型线的要求。G13520上所述，分型面采用方案I模具结构相G4557简单，塑件成型精度G2499靠，满足塑件外观质量要求，G3252G8504采用方案I。（二）确定型腔数量及排列方式UA70A71A72A73A76A77A78A79A80A817当塑件分型面确定G2530，就G19668要考虑是采用单G14120模还是多型G14120模。一般来说，大中型塑件和精度要求G17751高的G4579型塑件优先采用一模一G14120的模具结构，但G4557于精度要求G993高的G4579型塑件（没有配G2524精度要求），形状简单，又是大批量生产G7114，若采用多型G14120模具G2499提供独特的优越条件，使生产效率大为提高。故由G8504初步拟定采用一模四G14120。如图G23所示。（三）模具结构形式的确定该塑件外观质量要求G17751高，从该塑件的外部特征G2499以看出塑件外形是一有凸凹圆环的类轴G19658件，15外圆柱一两个1G26的圆环，G4557该塑件G17839G15904模塑成型G7114，凸凹圆环只G14033采用侧向成型。侧向成型方法有多种形G5347，有斜导柱、斜导槽和弯销驱G2172侧向滑块成型，有斜滑块侧向成型等方法。而斜滑块侧向成型要G8616斜导柱和弯销驱G2172成型G7438构简单的多，G3252G8504本设计采用斜滑块侧向成型，G3252G8504G2499初步拟定采用两型G14120三分型面的模具结构形G5347，G2081两个分型面为水平分型面，G2530者为垂G11464分型面，如图6所示。三、注射机型号的确定UA70A71A72A73A76A77A78A79A80A818注G4568模是安G16025在注G4568G7438上使用的工艺G16025G3803，G3252G8504设计注塑模是G5224该G16826G13466了解注G4568G7438的G6228G7427G16280G14551，G6177G14033设计出G12538G2524要求的模具。注G4568G7438G16280G7696的确定G1039要是G7693G6466塑件的大G4579G2462型G14120G6980G11458和排G2027方G5347，在确定模具结构形G5347G2462初步G1284G12651外形尺寸的G2081提下，设计G1166G2604G5224G4557模具所G19668的注G4568量、G19157模G2159、注G4568G2399G2159、G6301G7450间距、最大和最G4579模具G2414度、G6524出形G5347、G6524出位置、G6524出G15904G12255、开模距离等G17839G15904计G12651。G7693G6466G17837G1135G2454G6980选择一G2500和模具相G2317配的注G4568G7438，G1516若用G6155已提供了注G4568G7438的型G2507和G16280G7696，设计G1166G2604必须G4557G17837G1135G2454G6980G17839G15904G7669G7692，G1516若G993G14033满足要求，则必须G14270G5061G16855整或与用G6155取G5483G2842量G1889G17839G15904G16855整。（一）所需注射量的计算1对塑件体积、质量的计算G4557于该设计，用G6155提供了塑件的图样G2462尺寸，G6466G8504G5326立模型G5194G4557G8504模型分析G5483塑件体积G57A82G3001G271G70MA83塑件质量MA82G3001VG3211G1041G271G3001G28G281G742浇注系统凝料体积的初步计算G2499G6365塑件体积的06G1505计G12651，由于该模具采用一模四G14120，所以G8987注G13007G13491G1969料体积为G57A84G32G23G57A85G10406G729G23G1041G28G281G10406G300G23G26G26G27G70MA883该模具一次注射所需塑料PTG16G251G19体积G57A90G32G23G57A85G14G57A84G32G23G1041G271G14G23G26G26G27G3001201G70MA88质量MA90G320VG3211G1041201G30013211G74（二）注射机型号的选定G17829G5192来G6117G3281G5353G17839注G4568G7438型G2507G5468多，G3281内注G4568G7438生产G2390的G7044G7438型也G7097G11422G3698多。G6496G6581使用设G3803的G6228G7427G2454G6980是注塑模设计和生产所必G19668的G6228G7427G1946G3803。在设计模具G7114，最好G7609G19417注G4568G7438生产G2390G4490提供的G457注G4568G7438使用说G7138G458上G7643G7138的G6228G7427G2454G6980。G7693G6466以上的计G12651初步选定型G2507为SG61G252G235型G2363G5347注G4568G7438，其G1039要G6228G7427G2454G6980如下UA91A92A93A94A95A96A97A98A99A1009注以上G2454G6980由G2454考G7003G104985第3G282G20041G2462G1856G2508提供部分G2454G6980（三）型腔数量及注射机有关工艺参数的校核1型G2968数量的G3790G1762（1）由注G4568G7438料G12582塑G2282G17907率G7669G7692型G14120G6980量12MMKMTN上G5347右边G300G28G23G305G23，G12538G2524要求。G5347中G46G252G252注G4568G7438最大注G4568量的利用G13007G6980，一般取0G27；G48G252G252注G4568G7438的G20081定塑G2282量（G74G18G86），该注G4568G7438用G6155提供为6G74G18G86；G87G252G252成型G2620G7411，G3252塑件G4579，G3733G2414G993大，取30G86G17839G15904G7669G7692；MA85G252G252单个塑件的质量和体积（G74或G70MA88），取MA85G3001G28G281G742MG252G252G8987注G13007G13491塑料质量或体积（G74或G70MA88），取2MG30006G1041G28G281G104G23G300G23G26G27G74。（2）由注G4568G7438的最大注G4568量G7669G7692型G14120G6980量12MMKMNN上G5347右边G3001G263G305G23，G12538G2524要求。G5347中NMG252G252注G4568G7438允许的最大注G4568量（G74G18G70MA88），该注G4568G7438为G235G74。其G1194G12538G2507G5859G1053与取值同G2081。（3）由注G4568G7438的G20081定G19157模G2159G7669G7692型G14120G6980量塑件在G1817模G17819G12255中产生的G13972模G2159G1039要作用在两个位置在两瓣G2524模上的作用面积G13434为AA85A85G300G1041G26G10420G7293G230塑件与模G7507的G6521G16314面积G13434为AA85A84G30031G23G104（1G26G182）A84G729226G27G2612PAPAFN上G5347右边G300112G305G23，G12538G2524要求。G5347中G41G252G252注G4568G7438的G20081定G19157模G2159（G49），该注G4568G7438为G23G10410A101G49G30AA85G252G252G23个塑件在分型面上的投影面积（MMA84），AA85G729G23G1041126G27G300G23G23G280G262MMA84；AA84G252G252G8987注G13007G13491在模具分型面上的投影面积（MMA84），AA84G300131AG72915G262MMA84；PG252G252塑料G10088体G4557型G14120的成型G2399G2159（MPA），一般是注G4568G2399G2159的30G8G79465G8，该G3800取型G14120平G3355G2399G2159为11G28G10465G8G300G26G2635MPA。2注射机的工艺参数的G3790G1762（1）注G4568量G7669G7692注G4568量以G4493积表示最大注G4568G4493积为0G275G104G235G323G2725G70MA102UA103A104A105A106A107A108A109A110A111A11210G5347中MAXVG252G252模具型G14120和G8981G17959的最大G4493积（G70MA102）；G57G252G252G6363定型G2507与G16280G7696的注G4568G7438注G4568量G4493积（G70MA102），该注G4568G7438为G235G70MA102；G252G252注G4568G13007G6980，取0G265G7940G275，该G3800取0G275。G1516若G4466G19481注G4568量G17819G4579，注G4568G7438的塑G2282G14033G2159G5483G993G2052G2469G6393，塑料在料G12582中G1584G11053的G7114间就G1262G17819长。所以最G4579注G4568量G4493积3MIN5730250250CMVV。故G8611G8437注G4568的G4466G19481注G4568量G4493积0VG5224满足MAX0MINVVV230MMG15G12538G2524要求。注G4557于上面2G12、3G12、G23G12、5G12的G7669G7692内G4493是与G2530面的模具结构设计交叉G17839G15904的，但为了G15904G7003整体形G5347与内G4493的G13491一，所以将G8504部分内G4493G6930与G8504。四、浇注系统形式和浇口的设计G8987注G13007G13491是G5353导塑料G10088体从注G4568G7438G2955G3080G2052模具型G14120的G17839料通G17959，具有G1268质、G1268G2399和G1268G9921的功G14033，G4557塑料质量影响G5468大。它分为普通G8981G17959G13007G13491和G9921G8981G17959G8987注G13007G13491。该模具采用普通G8981G17959G8987注G13007G13491，包括G1039G8981G17959、分G8981G17959、G1931料穴、G8987G2487。（一）主流道的设计G1039G8981G17959通G5132位于模具中心塑料G10088体的G1849G2487G3800，它将注G4568G7438G2955G3080G4568出的G10088体导G1849分G8981G17959或型G14120中。G1039G8981G17959的形状为圆锥形，以便于G10088体的G8981G2172和开模G7114G1039G8981G17959G1969料的顺利拔出。1主G2464G1281G1124G1226（1）G1039G8981G17959G4579端G11464G5464G39G729注G4568G7438G2955G3080G11464G5464（05G7941）G7293（05G7941），取G39G3235MM（2）G1039G8981G17959G10711面G2334G5464SG53A130G729注G4568G7438G2955G3080G10711头G2334G5464（1G7942）G72912（1G7942），取SG53A130G72913MM（3）G10711面配G2524高度取HG7291MM。（G23）G1039G8981G17959长度尽量G4579于65MMG15由G4466G19481设计的模架结G2524该模具的结构，取LG729G232MM（5）G1039G8981G17959大端G11464G5464MMLDD946TAN2（G2334锥角为1G7942，取G7292），DG32G26MM（6）G8987G2487套总长LA130G32G232G14HG32G233MM2主G2464G1281G1097G3466的形式G1039G8981G17959G4579端G1849G2487G3800与注G4568G7438G2955G3080反复G6521G16314，属易损件，G4557材料要求G17751G1017，G3252而模具G1039G8981G17959部分G5132设计成G2499拆卸更换的G1039G8981G17959衬套形G5347G2375G8987G2487G17959，以便有效的选用优质钢材单独G17839G15904加工和G9921G3800G10714，G5132采用碳素工具钢，如TG27A、T10A等，G9921G3800G10714硬度为50HG53CG79455HG53CG15如图G26所示。UA131A132A133A134A135A136A137A138A139A14012由于该模具G1039G8981G17959G17751长，定位G3292和衬套设计成分体G5347G17751宜，其定位G3292结构尺寸如图G26所示。3主G2464G1281G1097G3466的G1669定G1039G8981G17959衬套的G3278定形G5347如图G28所示UA131A132A133A134A135A136A137A138A139A14013（二）冷料穴的设计1主G2464G1281G2351料G3889的设计开模G7114G5224将G1039G8981G17959中的G1969料G6301出，所以G1931料穴G11464G5464G5224G12257大于G1039G8981G17959大端G11464G5464。由于该模具具有垂G11464分型面G2375侧向分型，G1931料穴分别开在左右侧滑块上，开模G7114，将G1039G8981G17959中的G1969料G6301出，侧向分型G7114，G1931料穴中的G1969料G2462塑件同G7114被G6524出。该模具采用G61字形G6301料G7450的结构形G5347。2分G2464G1281G2351料G3889的设计分G8981G17959的设计与G1039G8981G17959相似，采用G61字形G6301料G7450的结构形G5347。（三）分流道的设计1分G2464G1281的G995G4386形式分G8981G17959在分型面上的布置与G2081面所述型G14120排G2027密切相关，有多种G993同的布置形G5347，但G5224遵循两方面原则一方面排G2027紧凑、缩G4579模具G7507面尺寸；另一方面G8981G12255尽量短、G19157模G2159G2159求平衡。该模具的G8981G17959布置形G5347采用平衡G5347，在瓣G2524模部分开设分G8981G17959。该G8981G17959形G5347是由本模具结构形G5347所确定，无其G1194最佳方案选择，图10是最佳分G8981G17959布置形G5347。2分G2464G1281的G1065度G7693G6466型G14120在分型面上的排布情况，分G8981G17959G2499分为一G8437分G8981G17959、二G8437分G8981G17959甚至三G8437分G8981G17959，分G8981G17959长度G5224尽量短，且少弯折，以便G1955少G2399G2159损失和G9921量损失，节G13434塑料的原材料和G14033耗。G7693G6466该模具的结构形G5347，由设计图中G5483该模具分G8981G17959的长度为单边为G26G28MM，分G8981G17959总长度为LG3252G142G104G26G28G72921MM。如图10。3分G2464G1281的形状及G1124G1226为了便于加工G2462G1969料的脱模，分G8981G17959大多设置在分型面上。工G12255设计中的截面形状G5224尽量使其G8616表面积（G8981G17959表面积与其体积之G8616）G4579，在G9213度G17751高塑料G10088体和G9213度相G4557G17751低的模具之间提供G17751G4579的G6521G16314面积，以G1955少G9921量损失。G5132采用的分G8981G17959截面形G5347有圆形、梯形、U形、G2334圆形G2462矩形等几种形G5347。圆形截面的G8616表面积最G4579，但G19668开设在分型面的两侧，在制造G7114一定要注G5859模G7507上两部分形状G4557中吻G2524；梯形G2462UA131A132A133A134A135A136A137A138A139A14014U形截面分G8981G17959加工G17751易，且G9921量损失与G2399G2159损失G3355G993大，为G5132用的形G5347；G2334圆形截面分G8981G17959G19668用G10711头铣刀加工，其表面积G8616梯形和U形截面分G8981G17959略大，在设计中也有采用；矩形截面分G8981G17959G3252其G8616表面积G17751大，且G8981G2172阻G2159也大，故在设计中G993G5132采用。本模具是瓣G2524模结构，为了便于瓣G2524模上分G8981G17959的加工，所以开设圆形分G8981G17959最好，其G11