机械5

45°斜三通注塑模具设计 摘要 随着塑料制品在生产生活中应用的增多，塑件制造得到较高的重视。因为注塑模具在生产塑料件的速率和质量上有较大的优越性，所以在塑料制品的成型中占有很大比重，因而塑料模具的设计显得至关重要。 本设计主要是斜三通管的注射模具设计。通过对塑件进行工艺的分析及其结构分析，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、注射机的选择及有关参数的校核都有详细的设计。介绍了斜三通管注塑模具的结构组成及工作原理。该模具一模一腔,采用斜导柱和侧滑块抽芯机构,结构合理,运行可靠。通过模具设计表明该模具能达到斜三通管的质量和加工工艺要求。目的是通过对该零件的注塑模工艺的设计，了解注塑模具的设计步骤，ABS等材料的各项性能指标，工艺方案的选择，和侧向抽芯技术的掌握。 塑料注射的设计过程，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、型腔的排列方式、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；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。 关键词：斜三通；注塑模具；注射机；侧型芯滑块；斜导柱 Abstract With the i
ncreasi
ng of plastic products i
n ma
nufacturi
ng a
nd life, plastic part ma
nufacturi
ng is attracted more atte
ntio
n. Due to the adva
ntage of i
njectio
n mold o
n the speed a
nd quality of plastic parts processi
ng, it plays a
n importa
nt role i
n shapi
ng of plastic parts. So the i
njectio
n mold desig
n is key segme
nt of product life cycle. This desig
n mai
nly applies to i
njectio
n mold of Diago
nal Tee Co
n
nector. It a
nalyzes the process a
nd structure through plastic parts. It gives detailed desig
n o
n the i
njectio
n system of molds, the structure of moldi
ng part, push-off system, selectio
n of i
njector from the perspectives of productworkma
nship a
nd specific mold structure. The mould features as o
ne mouldwith o
ne cavity, adopti
ng sla
nted guide pillar side core-pulli
ng mecha
nisms, reaso
nable structure a
nd reliableworki
ng. It is to prove the mold ca
n satisfy the quality a
nd process requireme
nts of the Diago
nal Tee Co
n
nector through the desig
n. Purpose is through the parts of the i
njectio
n mold process desig
n, mold desig
n steps, ABS materials such as performa
nce, selectio
n of the process scheme, a
nd side core drawi
ng tech
niques. Plastic I
njectio
n the desig
n process,which is desig
ned as part of the craft-orie
nted establishme
nt : Plastic Parts of the Process A
nalysis, Plastic Parts of the size a
nd quality of calculatio
n a
nd the i
njectio
n parameters set; Structural desig
n : Surface choice cavity determi
natio
n, Cavity the arra
ngeme
nt, gate desig
n, lateral type pulli
ng mecha
nism desig
n, lau
nch a
nd reattached body ide
ntified; Core, Cavity size calculatio
n; Die heati
ng a
nd cooli
ng system computatio
n; Mold closi
ng high set; I
njectio
n machi
ne parameters i
n theverificatio
n; The desig
n of such a structure ca
n be used to e
nsure reliable die. Fi
nally, the i
njectio
n mold structure a
nd the matchi
ng machi
newas calibrated. Usi
ng a set of auto mappi
ng mold parts a
nd assembly pla
ns. Keyword：Diago
nal Tee Co
n
nector；plastic i
njectio
n mould；plastic i
njectio
n mould machi
ne；Slide core-slide；sla
nted guide pillar 目录 引言1 1塑件工艺分析4 1.1成型工艺分析5 1.2 ABS的注射成型过程及工艺参数5 1.3材料分析6 2注射成型机的选择与成型腔数的确定7 2.1注射成型机的选择7 2.2注塑机的校核8 2.3成型腔数的确定9 3成型零件结构设计9 3.1分型面的设计9 3.2型腔的分布11 3.3凹模的结构设计11 3.4凸模的结构设计12 3.5成型零件工作尺寸的计算12 4浇注、排气、温度调节系统的设计13 4.1浇注系统的设计13 4.2排气系统的设计16 4.3温度调节系统的设计17 5导向与抽芯机构的设计20 5.1导向机构的设计20 5.2抽芯机构的设计23 6其它零件的设计模具安装和试模30 6.1其它零件的设计30 6.2模具安装和试模31 7模具的总装图和工作原理31 8结论32 谢辞33 参考文献34 附录35