带手把水杯的塑料模具设计(田旭元)

I带手把水杯的塑料模具设计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。我国加入WTO以后，吸引外资能力的逐年增强，成为世界产品制造工厂地位愈加突出，而模具也在这其间扮演着越来越重要的角色。塑料作为现代社会经济发展的基础材料之一，是农业、工业、能源、交通运输等经济领域不可缺少的重要材料，其用途已渗透到经济和生活的各个领域，和钢铁、木材、水泥成为材料领域的四大支柱。模具是工业生产的基础工艺装备，被各行业广泛用于生产最终产品，其产生的价值往往是模具自身价值的几十倍、上百倍，被誉为“效益放大器”。模具生产技术水平的高低，已成为衡量一个地区制造水平高低的重要标志。本课题主要是针对塑料水杯的注塑模具设计,该水杯材料为PP，是工业生产中常见的一种塑料产品。通过对塑件进行工艺的分析和比较,最终设计出一副注塑模。该课题从产品结构工艺性，具体模具结构出发，对模具的浇注系统、模具成型部分的结构、顶出系统、冷却系统、注塑机的选择及有关参数的校核都有详细的设计，根据题目设计的主要任务是水杯注塑模具的设计，也就是设计一副注塑模具来生产塑件产品，以实现自动化提高产量。针对塑件的具体结构，该模具是点浇口的注射模具。关键词：模具；塑料水杯；注塑模；浇注系统；注塑机；点浇口。IITheappliancewithglassplasticmoulddesignABSTRACTMoldisanimportantsetupinmodernindustry.Inmanufacturingindustry,60～90percentofproductsutilizemold.Moldingindustryhasbeenaessentialfactorofindustrydevelopment.Anumberofnewproducts’developmentsconsiderablydependonmoldmaking.Therefore,itissignificantfornationaleconomytoresearchandimprovemoldtechnology.China'saccessiontotheWTO,attractforeigninvestmentabilityincreaseyearbyyear,becometheworld'smanufacturingfactoryincreasinglyprominentposition,anddieinthemeantimealsoplaysamoreandmoreimportantrole.Plasticasamodernsocialandeconomicdevelopmentofthebasicmaterialisoneofagriculture,industry,energy,transportationandeconomyindispensableimportantmaterial,itsusehaspenetratedintoallfieldsofeconomyandlife,andtheironandsteel,wood,cementinthematerialfieldoffourpillar.Moldisthefoundationofindustrialproductiontechnologyandequipment,iswidelyusedintheproductionofthefinalproductindustry,itsvalueisoftendieownvalueonafewtimes,onehundredtimes,isknownas\benefitamplifier\.Moldproductiontechnologylevel,hasbecomethemeasureofaregionmanufacturinglevelofimportantsymbol.Abstract:Themaintopiccoveredforacupofinjectionmolddesign,thematerialsforthecupisPP,iscommonlyfoundinindustrialproduction.Throughtheprocessofplasticpartsforanalysisandcomparison,thefinaldesignofaninjectionmold.Theproductmixfromtechnologyissues,andspecificmoldstructureofthecastingmoldsystem,moldformingpartofthestructure,topofthesystem,coolingsystem,thechoiceofinjectionmoldingmachineandrelatedcalibrationparametersaredetaileddesign,Designedinaccordancewiththesubject'smaintaskistobuildaroundplasticinjectionmolddesign,thatis,thedesignofaninjectionmoldtoproduceplasticproductsinordertoachieveautomationtoincreaseproduction.Themoldfortheplasticpartsoftheconcretestructure,pointgateoftheinjectionmold.KeyWords:mould；Plasticcup;Injectionmold;Pouringsystem;Injectionmoldingmachine;Pointgate目录1绪论.......................................................................11.1引言.................................................................11.2塑料模具的现状及发展趋势.............................................21.2.1塑料模具的现状..................................................21.2.2塑料模具的发展趋势..............................................21.3本课题研究意义.......................................................32塑件工艺分析................................................................42.1塑件描述.............................................................42.2塑件材料的分析.......................................................42.2.1性能与特点......................................................42.2.2设计注意........................................................42.2.3材料收缩率......................................................42.3塑件尺寸大小、形状、壁厚的确定.......................................52.4塑件尺寸精度和表面粗糙度.............................................52.5脱模斜度.............................................................73注射机的选用................................................................93.2确定注塑机型号......................................................103.3确定注塑成型的工艺参数..............................................113.4注塑机的相关参数的校核..............................................113.4.1开模行程的校核.................................................113.4.2注射量的校核...................................................123.5喷嘴尺寸的确定......................................................133.6定位环尺寸..........................................................133.7模具厚度............................................................133.8模具的长度与宽度....................................................144模具的设计.................................................................154.1塑件成型方案的确定..................................................154.1.1分型面的确定...................................................154.1.2型腔数目的确定.................................................164.2成型零件有关计算....................................................164.2.1影响塑件尺寸精度的因素的分析...................................174.2.2凹模工作尺寸计算................................................174.2.3凸模工作尺寸计算...............................................184.2.4成型零件强度及支撑板厚度...................................184.3浇注系统设计........................................................184.3.1主流道的设计...................................................184.4.1温度调节对塑件质量的影响.......................................224.4.2温度调节对生产力的影响.........................................224.5合模导向和定位机构.............