基于PC_ABS薄壁成型的雾化器机筒注射模设计.pdfVIP

基于PC/ABS薄壁成型的雾机筒注射模设计

摘要：针对雾化机机筒薄壁塑件模腔流长比为77.8，并且采用PC/ABS进行注塑要求的特点，设计了1副两板

2次开模的自动化注塑成型。模具中，针对塑件模腔的浇注，设置了2个潜伏式浇口，保证模腔的充填效果。为实

现塑件的自动脱模，设计了3个脱模步骤，相应的机构及机构动作为采用了2副哈夫滑块机构用于塑件外壁的脱

模，2副哈夫滑块机构均依靠模具打开的开模动力分次实施抽芯；第一副哈夫滑块机构用于定模一侧外壁的侧抽芯

脱模，其通过动模侧的第一次开模打开驱动，完成先抽芯动作；第二副哈夫滑块机构用于动模一侧外壁圆环型凹槽

的侧抽芯脱模，其通过动模侧的第二次开模打开驱动，完成抽芯动作。为实现模具2次开模按顺序进行，该模具中

设计了一种开模控制机构，机构通过解锁插杆驱动移动锁芯实现与锁钩的锁闭/开锁功能，从而实现了模具开/闭模

动作的有序进行。

关键词：PC/ABS；薄壁塑件；哈夫滑块；机构设计；注塑模具；结构设计

DesignofInjectionMouldforAtomizerBarrelBasedonPC/ABSAlloyThinWallMolding

Abstract:Inresponsetothecharacteristicsoftheatomizerbarelthin-walledplasticpartswithaflowlengthratioof

77.8andtheuseofPC/ABSalloyforinjectionmoldingrequirements,akindoftwo-plateswithtwomoldopeningswas

designedforautomatedinjectionmoldingofplasticparts.Inthemould,twosubmarinegatesweresetupforthegatingofthe

plasticmoldcavitytoensurethefillingeffectofthemoldcavity.Inordertoachieveautomaticdemoldingofplasticparts,

threedemoldingstepsweredesigned.Thecorrespondingmechanismsandmechanismactionswere:twosetsofHalf-slider

mechanismswereusedfordemoldingtheouterwalloftheplasticparts,andbothsetsofHalf-slidermechanismsreliedon

themoldopeningpowertoperformcorepullinginstages;ThefirstkindofHalf-slidermechanismwasusedforsidecore

pullinganddemoldingoftheouterwallononesideofthefixedmold,whichcompletesthefirstcorepullingactionby

drivingthefirstmoldopeningonthemovingmoldside;ThesecondkindofHalf-slidermechanismwasusedforsidecore-

pullinganddemoldingoftheouterwallcirculargrooveononesideofthemovingmold.Itcompletedthecore-pullingaction

bydrivingthesecondmoldopeningonthemovingmoldside.Inordertoachie