摘
要
在本设计中鉴于设计题目的特征，我们选用了侧抽芯结构。由于本设计的塑料构件的尺寸较小我们选用了一模两腔的注射结构，当然我们也用了三分型面结构。零件的特点是侧面有孔，上面有凹槽，四周有圆角【形状如图（11），给确】定分型面、确保塑件精度及防止塑件在分型面上溢边带来了困难。根据零件形状推出机构不采用传统的推杆机构而是采用推板形式【见总装图】，分型面改进为台阶式分型。在本次模具设计中有较多的数据计算，如成型零件尺寸的计算、形位公差的计算、确定注塑机时的校核计算等。根据所选的注塑机要确定模具的总模厚，还有相关数据的校核，比如锁模力、注射压力。本次设计还对浇口、冷却方式和排气方式进行了说明、阐述。本次设计模具总体结构紧凑、论文思路严谨，对大学四年所学理论进行了系统的回顾与总结。由于本人设计水平有限，缺点和错误在所难免，请各位老师批评指正。关键词：一模两腔；侧型芯；三分型面
fABSTRACT
I
thisdesig
accordi
gtothecharacteristicsofcompo
e
tsusedsidecorei
stitutio
sAsthesizeofsmallplasticpartssousi
gatwocavityi
jectio
moldmethodalsousedthisthreesubsurfacestructurePartischaracterizedbythesideofthetimetherearegrooveso
theshowoffsurrou
dedbyarou
ded【ShapeFigure11】todetermi
etheparti
gli
etoe
sureprecisio
plasticpartsa
dplasticpartstopreve
toverflowi
thesideofthesurfacetypetobedifficultTheshapeofthepartbythei
troductio
ofi
stitutio
sforthepromotio
oftraditio
alputterimprovechip【assemblymapsee】subsurfaceimproveme
tsforthesteppedtypeI
thismoldhavemoredataofsuchasformi
gpartofthecalculatio
ofsizeshapea
dpositio
tolera
cecalculatio
todetermi
ethetimeofi
jectio
moldi
gmachi
echeckcalculatio
Co
fide
tialbasedo
theselectedi
jectio
moldtodetermi
ethetotalthick
essofthemoldaswellasrelateddataverificatio
suchasclampi
gforcei
jectio
pressureThisdesig
isalsoo
thegatecooli
ga
dexhaustmethodsaredescribedexplai
edThecompactdesig
oftheoverallstructureofmoldthepaperthoughtstricttheoryoftheu
iversitythreeyearsco
ductedasystematicreviewa
dsummaryAsIdesig
islimitedshortcomi
gsa
dmistakesarebou
dtopleasetheteachercriticizedthecorrectio
KeyWords：atwocavitymold；sidecore；threesubsurface
f目
录
第一章绪论111塑料成型工业的发展112塑料成型工业在生产中的重要性r