搜索
摘要摘要模具是工业生产用的重要的工艺装备，在现代工业生产中，60%～90%的工业产品需要使用模具，模具工业以成为工业发展的基础，许多新产品的研制与开发很大程度上依赖于模具的生产，因此，研究和发展模具技术，提高模具水平，对促进国民经济的发展有着特别重要的意义。本论文主要论述了材料为ABS的小尺寸、一般精度的提带连接扣注射模的设计方法。论文首先介绍了塑料成型基础及塑料注射成型的工艺过程；其次通过对注塑加工方法及提带连接扣进行综合工艺分析，确定了提带连接扣注射模的设计方案，即该模具采用一模四腔、侧抽芯的设计方案。然后针对该方案进行了重点论述，主要包括侧抽芯的塑件及其注塑模的设计过程、注塑模主要零部件的设计要点等。其中注塑模主要设计的重点包括：侧抽芯设计、零件结构设计、模具分型面的选择、型腔数目的确定、浇注系统的设计、滑块的设计、注射机的强度校核等。最后论文针对提带连接扣塑件的成型工艺方法以及其模具采用侧抽芯生产的可行性进行了论证。关键词：提带连接扣；注塑模；侧抽芯；分型面；注射机。Abstract-I-AbstractMoldisanimportantsetupinmodernindustry.Inmanufacturingindustry,60～90percentofproductsutilizemold.Moldingindustryhasbeenaessentialfactorofindustrydevelopment.Anumberofnewproducts’developmentsconsiderablydependonmoldmaking.Therefore,itissignificantfornationaleconomytoresearchandimprovemoldtechnology.Thedissertationintroducesthedesignofinjectionplasticmoldforthebuttonlinkedbelt.themoldmadebyABSissmallsizeandcommonprecision.Firstly,Thedissertationmainlyexplainsthedesigningprocessofthemold.Secondly,Thedissertationanalysesshapingcraftanddevisestheshapingstrategy.Themoldadoptsonemoldandfour-cavitiesandsidepull.Thedissertationgivesfullyanalysistothemakingprocess.Thirdly,thedissertationfocusesontheanalysisofthedesignofinjectionplasticmoldsforthebuttonlinkedbelt,including:sidepulldesign;structuralpartdesign;decisionofpartingplane;assuranceofcavitynumber;designofgatingsystem;designofslidingblock;strengthverification,etc.Lastly,thedissertationdemonstratesthefeasibilityofthedesign.KeyWords：thebuttonlinkedbeltinjectionplasticmoldsidepullPartedplaneinjectionmachine目录-I-目录摘要........................................................................................................................IAbstract...........................................................................................................................I绪论...........................................................................................................................-1-1塑料基础知识.........................................................................................................41.1树脂..................................................................................................................41.2高分子聚合物..................................................................................................41.3聚合物分子结构..............................................................................................41.4塑料的组成......................................................................................................42塑料注射成型工艺.................................................................................................62.1注射成型原理与成型工艺过程.......................................................................62.2侧向抽芯注射成型模具结构简介...................................................................83提带连接扣注射模的设计...................................................................................103.1型腔数量的确定与成型工艺规程的编制....................................................103.1.1型腔数量的确定..................................................................................103.1.2成型工艺规程的编制..........................................................................103.2注射模的结构设计........................................................................................133.2.1设计方案应确定的主要内容..............................................................133.3分型面的选择................................................................................................133.3.1分型面的确定要点..............................................................................133.4浇注系统的设计............................................................................................153.4.1浇注系统设计要点..............................................................................153.4.2主流道的设计......................................................................................163.4.3分流道的设计......................................................................................173.4.4浇口的设计..........................................................................................173.5侧向分型与抽芯机构的设计与计算............................................................183.5.1斜导柱抽芯结构设计的要点与注意事项..........................................183.5.2抽芯力的估算与斜导柱直径的计算..................................................19目录-I-3.5.3抽芯距和斜导柱的长度计算..............................................................203.5.4抽芯机构的设计计算..........................................................................213.6型芯与型腔的定位与导向结构....................................................................233.7滑块（哈夫块）与导槽设计........................................................................233.8成型模的设计................................................................................................243.8.1成型模的结构......................................................................................243.8.2成型模尺寸的计算..............................................................................253.9模具的加热和冷却系统的设计和计算........................................................313.10推出与复位机构....................................................