毕业设计说明书I本文主要介绍的是冰箱感温盒盖注射模的设计方法。首先分析了冰箱感温盒盖制件工艺特点，包括材料性能、成型特性与条件、结构工艺性等，并选择了成型设备。接着介绍了冰箱感温盒盖注射模的分型面的选择、型腔数目及布置，重点介绍了浇注系统、成型零件、导向机构、脱模机构、斜导柱导滑的侧向抽芯机构的设计。然后选择标准模架，并对注射机的工艺参数进行了校核。最后对模具的工作原理进行说明，以及在安装调试中可能出现的问题进行总结、分析，并给出了相应的解决方法。本文论述的冰箱感温盒盖注射模模具采用三板式结构，即浇注系统凝料和制件在不同的分型面脱出，一模四腔型腔布置，对侧凹结构采用斜导柱抽芯机构，然后利用四根推杆来推出制件。本模具结构稳定可靠，效果很好，塑件达到了规定的技术要求。毕业设计说明书IIThedesigningmethodsofinjectionstructureoftherefrigeratortemperature-sensitiveboxaremainlyintroducedinthispaper.First,thetechnologicalcharacteristicsareanalyzed,includingmaterialproperties,formingcharacteristicsandconditions,theprocessofthestructure,andtheformingequipmentwereselected.Thenthepartinglineisselected,thenumberofcavityandlayoutaredetermined.Aspecificintroductionismadeonfeedsystem,coolingsystem,formingparts,guidingmechanism,strippermechanism,andcore-pullingmechanism.Thenthestandardmouldbasesareselected,andcheckedthetechnologicalparametersoftheformingequipment.Finally,problemsthatmayemergeduringthemoldinstallationprocessareanalyzedandtheappropriatesolutionisprovided.Themouldofrefrigeratortemperature-sensitiveboxdiscussedinthisarticleusesthree-platemould,thatispouringmaterialandtheplasticpartsareejectedfromdifferentpartinglines.Therearefourcavitiesinthismould,andforthere-entrantpartsusingangelpincore-pullingmechanismtomovetheslide.Simultaneously,fourejectorpinsareusedtopushouttheplasticparts,soitcanreducetheejectionforce.Themoldstructureisstableandreliable,aswellasleadstogoodeffect,andthepropertiesofplasticpartsmeettherequirements.Keywords:injectionmold;core-drawingmechanism;refrigeratortemperature-sensitivebox毕业设计说明书III目录1········································································································································11.1课题来源及目的···············································································································11.2模具、塑料模具及其发展趋势··············································