摘要
本次设计是塑料注塑模具设计,注塑成型塑件为开关外壳,其中的设计内容有零件的工艺性编制:塑件的工艺性分析、塑件的体积和质量计算及注射机参数的确定;结构设计:分型面选择、型腔数确定、浇口设计、侧向分型抽芯机构设计、推出及复位机构方式确定;型芯、型腔尺寸计算;模具加热和冷却系统计算;模具闭合高度确定;注射机有关参数的校核。
塑件尺寸较小,采用一模两腔,单分型面注射结构,把分型面选择在塑件水平投影最大的截面上,推件装置采用推板,推出平稳可靠,推出时不会在塑件上留下顶出痕迹,并采用斜导柱侧向分型机构。
如此设计出的结构可确保模具工作运用可靠。最后对模具结构与注射机的匹配进行了校核,并用autoCAD绘制了一套模具装配图和零件图。
关键字:注塑成型;开关外壳;结构设计;CAD
Desig
n the i
njectio
n mould of the support block Abstract This desig
n is plastic i
njectio
n mold desig
n,plastic i
njectio
n mold moldi
ng plastics is for Switchi
ng power supplyCase,The desig
n co
nte
nts are parts of tech
nologyestablishme
nt:tech
nologyA
nalysis of part,The computatio
n ofvolume a
nd qualityof part,I
njectio
n machi
ne parameter is determi
ned;structural desig
n:the choice of parti
ng surface,the determi
ne of cavity
number,the desig
n of the gate a
nd the core-pulli
ng mecha
nism,calculati
ng the size Cores cavity;the calculatio
n mould heati
ng a
nd cooli
ng system,The mold closed highlydetermi
ned;I
njectio
n machi
ne related parameter exami
natio
n. Plastics has the smaller dime
nsio
n,use a two-cavity,si
ngle parti
ng surface i
njectio
n structure,choose the parti
ng surface i
n plastic parts o
n the biggest sectio
n level umbriferous,use push structure,ru
n
ni
ng calmlya
nd safely,Lau
nched i
n plastic partswo
n't leave ejectio
n trace,due to the plastics side has holes,sowe must adopt sla
nted-guide-pillar core-pulli
ng mecha
nism. The desig
n of such a structure ca
n be used to e
nsure reliable Diework to e
nsure that the other parts of the tie.Fi
nallyhas carried o
n the exami
natio
n to the mold structure a
nd the i
njectio
n machi
ne match. Keyword: i
njectio
n mouldi
ng;Switchi
ng Power SupplyCase;the structural desig
n;Computer-Aided Desig
n 目录 绪论3 1.模塑工艺规程的编制5 1.1塑件的工艺性分析5 1.1.1塑件的原材料分析5 1.1.2塑件的结构和尺寸精度及表面质量分析6 1.2计算塑件的体积和质量6 1.3塑件注塑工艺参数的确定7 1.4塑料成型设备的选取7 2.注塑模的结构设计8 2.1分型面选择8 2.2确定型腔的数目及排列方式9 2.2.1模腔数量的确定9 2.2.2型腔的排列方式11 2.3浇注系统设计11 2.3.1主流道设计11 2.3.2分流道设计12 2.3.3浇口设计13 2.3.4排气结构的设计13 2.3.5主流道衬套的选取14 2.4抽芯机构设计14 2.4.1确定抽芯距14 2.4.2确定斜销的倾角14 2.4.3确定斜销的尺寸15 2.4.4斜导柱的长度15 2.4.5滑块和导滑槽设计15 2.4.6导柱的设计15 2.5推出机构设计16 2.6成型零件结构设计16 2.6.1定模板与动模板的设计16 3.外壳注塑模具的有关计算18 4.模具加热和冷却系统的设计20 5.模具闭合高度确定20 5.1计算模具的闭合高度21 5.2校核注塑机的开,合模空间21 5.2.1模具合模时校核21 5.2.2模具开模时校核21 6.注塑机有关参数的校核21 6.1模具合模时校核21 6.2模具开模时校核22 7.绘制模具总装图和非标零件工作图22 7.1本模具总装图和非标零件工作图见附图22 7.2本模具的工作原理22 结论23 致谢24 参考文献25
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n the i
njectio
n mould of the support block Abstract This desig
n is plastic i
njectio
n mold desig
n,plastic i
njectio
n mold moldi
ng plastics is for Switchi
ng power supplyCase,The desig
n co
nte
nts are parts of tech
nologyestablishme
nt:tech
nologyA
nalysis of part,The computatio
n ofvolume a
nd qualityof part,I
njectio
n machi
ne parameter is determi
ned;structural desig
n:the choice of parti
ng surface,the determi
ne of cavity
number,the desig
n of the gate a
nd the core-pulli
ng mecha
nism,calculati
ng the size Cores cavity;the calculatio
n mould heati
ng a
nd cooli
ng system,The mold closed highlydetermi
ned;I
njectio
n machi
ne related parameter exami
natio
n. Plastics has the smaller dime
nsio
n,use a two-cavity,si
ngle parti
ng surface i
njectio
n structure,choose the parti
ng surface i
n plastic parts o
n the biggest sectio
n level umbriferous,use push structure,ru
n
ni
ng calmlya
nd safely,Lau
nched i
n plastic partswo
n't leave ejectio
n trace,due to the plastics side has holes,sowe must adopt sla
nted-guide-pillar core-pulli
ng mecha
nism. The desig
n of such a structure ca
n be used to e
nsure reliable Diework to e
nsure that the other parts of the tie.Fi
nallyhas carried o
n the exami
natio
n to the mold structure a
nd the i
njectio
n machi
ne match. Keyword: i
njectio
n mouldi
ng;Switchi
ng Power SupplyCase;the structural desig
n;Computer-Aided Desig
n 目录 绪论3 1.模塑工艺规程的编制5 1.1塑件的工艺性分析5 1.1.1塑件的原材料分析5 1.1.2塑件的结构和尺寸精度及表面质量分析6 1.2计算塑件的体积和质量6 1.3塑件注塑工艺参数的确定7 1.4塑料成型设备的选取7 2.注塑模的结构设计8 2.1分型面选择8 2.2确定型腔的数目及排列方式9 2.2.1模腔数量的确定9 2.2.2型腔的排列方式11 2.3浇注系统设计11 2.3.1主流道设计11 2.3.2分流道设计12 2.3.3浇口设计13 2.3.4排气结构的设计13 2.3.5主流道衬套的选取14 2.4抽芯机构设计14 2.4.1确定抽芯距14 2.4.2确定斜销的倾角14 2.4.3确定斜销的尺寸15 2.4.4斜导柱的长度15 2.4.5滑块和导滑槽设计15 2.4.6导柱的设计15 2.5推出机构设计16 2.6成型零件结构设计16 2.6.1定模板与动模板的设计16 3.外壳注塑模具的有关计算18 4.模具加热和冷却系统的设计20 5.模具闭合高度确定20 5.1计算模具的闭合高度21 5.2校核注塑机的开,合模空间21 5.2.1模具合模时校核21 5.2.2模具开模时校核21 6.注塑机有关参数的校核21 6.1模具合模时校核21 6.2模具开模时校核22 7.绘制模具总装图和非标零件工作图22 7.1本模具总装图和非标零件工作图见附图22 7.2本模具的工作原理22 结论23 致谢24 参考文献25
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