IJIUJIANGUNIVERSITY毕业设计题目塑料盖的模具设计英文题目Themoulddesignofplasticcover院系机械与材料工程学院专业机械设计制造及自动化姓名年级2007(机A0731)指导教师二零一一年六月II摘要塑料工业是当今世界上增长最快的工业门类之一,而注塑模具是其中发展较快的种类,因此,研究注塑模具对了解塑料产品的生产过程和提高产品质量有很大意义。本设计介绍了注射成型的基本原理,特别是单分型面注射模具的结构与工作原理,对注塑产品提出了基本的设计原则;详细介绍了冷流道注射模具浇注系统和顶出系统的设计过程,并对模具强度要求做了说明。采用Pro/E来实现塑料盖三维设计及相应模具成型零件设计,分析制件的成型质量和完成分型面的设计,在产品设计及模具装配过程中,辅助以必要的理论计算,将数字化设计与理论计算结合起来,大大缩短产品开发周期、模具设计周期,提高产品设计及模具设计的准确性,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。通过本设计,可以对注塑模具有一个初步的认识,注意到设计中的某些细节问题,了解模具结构及工作原理。本模具满足生产与应用的要求。【关键词】塑料盖;模具;分型面;设计;Pro/eIIIAbstractToday,Plasticindustryintheworldisoneofthefastestgrowingindustrialcategories,andinjectionmouldisoneoftherapiddevelopingtype,therefore,thestudytounderstandplasticinjectionmoldproductionprocessandimproveproductqualityhasgreatsignificance.Thisdesignisintroducedthebasicprincipleofinjectionmolding,especiallythesinglepartingsurfaceinjectionmouldstructureandworkingprincipleofplasticproducts,putsforwardthebasicdesignprinciples,Introducesindetailthecoldrunnerinjectionmouldgatingsystemandejectorsystemdesignprocessandtomouldstrengthrequirementillustrated.WithPro/EngineerMoldFlowtoimplementthree-dimensionaldesignandmoldvolumedesignofthePlasticcaps,andshapingqualityofpartwasanalyzedandthepartinglinewasdesignedbyPro/Engineer,Itwouldnotonlyshortenthecycleofproductresearchandmolddesign,andimprovetheprecisenessandtheproductshapingquality,butalsolowerthecostoftheresearch.Havingmadetherationalcraftschemeinthedesignprocess,soithasmettherequirementofproducinginenormousquantities.IVThroughthedesignofinjectionmould,wecanhaveapreliminaryunderstanding.Noticedinthedesignofsomedetails,wecanunderstandthemouldstructureandworkprinciple.【Keywords】plasticcover;mold;partingsurface;design;Pro/eV目录第一章前言················································11.1模具工业在国民经济中的地位·································11.2各种模具的分类和占有量·····································21.3我国模具工业的现状········································31.4世界五大塑料生产国的产能状况·······························51.5我国模具技术的现状及发展趋势·······························7第二章注塑件的设计···········································92.1功能设计········································92.2材料········································92.2.1ABS塑料化学名称·····································92.2.2ABS一般参数·····································102.2.3一般性能·····································102.2.4力学性能·····································102.2.5热学性能·····································102.2.6电学性能·····································112.2.7环境性能·····································112.3结构········································112.3.1壁厚·········································112.3.2脱模斜度·········································112.3.3圆角·········································122.4塑件工艺性分析········································122.4.1使用性能、制件技术要求和生产要求·····························122.4.2了解塑件材料及性能·········································122.4.3塑件尺寸精度分析·········································122.4.4塑件表面质量分析·········································12VI2.4.5塑件的结构工艺性分析·········································132.4.6注塑模工艺条件:·········································132.4.7ABS的“阻燃添加剂”·········································13第三章注塑成型的准备·········································143.1注塑过程········································143.2注塑成型工艺条件········································153.3注塑机的选择········································173.3.1注塑机简介·········································173.3.2注塑机基本参数·········································173.3.3选择注塑机·········································183.4注射机有关参数的校核和最终选择···························193.5模具开模行程校核········································203.6注塑机的参数校核········································20第四章模具设计···············································214.1塑料配方说明········································214.2分型面的确定········································224.3型腔数目的确定········································224.4浇口确定········································234.5模具材料的选择········································234.6浇注系统设计········································244.6.1主流道·········································244.6.2分流道·········································254.7标准模架的选择········································264.8导向与定位机构········································274.9顶出系统设计········································284.10成型零件工作尺寸的计算···································304.11排气设计········································304.11.1排气设计原则:·········································30VII4.12温度调节系统设计········································314.12.1温度调节对塑件质量的影响·····································314.12.2对温度调节系统的要求·········································324.12.3冷却系统设计原则·········································32第五章模塑的工艺规程的编制···································345.1工艺规程卡·············································345.2主要零件的加工工艺过程····································35结论···············································36参考文献···············································37谢辞········································