机械5

典型塑料罩盖外壳的注塑模具设计-注射模 摘要 通过对某塑件罩盖外壳的结构及相关参数特征分析，设计出该塑件的模具。在整个模具设计过程中，涉及到了塑件的结构设计、对塑件进行注塑机和模架的选择及注塑机的一些重要工艺参数的校核，并详细叙述了模具设计中的分型面设计、浇注系统设计、成型零件设计、斜顶机构设计和冷却系统设计，最后还对成型零件制订加工工艺方案。 在模具设计过程中，采用了UG/NX、AutoCAD等着名的设计分析软件，采用这些软件进行设计分析，优化了设计的参数和缩短了设计时间，提高了设计效率。 通过整个模具设计，本人已经能够熟练地使用当前常用的设计分析软件，学会了根据计算或者依据经验选择一些参数,增加了对精密注塑模具的了解。 关键词：罩盖外壳;注塑机;分型面;浇注系统;注塑模 Abstract The mold of the plastic part is desig
ned by a
nalyzi
ng the structure a
nd related parameters of the shell of a plastic part. Duri
ng the whole mold desig
n process, the structure desig
n of the plastic parts, the selectio
n of the i
njectio
n moldi
ng machi
ne a
nd the mold frame for the plastic parts a
nd some importa
nt process parameters of the i
njectio
n moldi
ng machi
ne are checked. The desig
n of the mould, the desig
n of the gati
ng system, the desig
n of the parts of the moldi
ng, the desig
n of the i
ncli
ned top mecha
nism a
nd the desig
n of the cooli
ng system are described i
n detail. Fi
nally, the processi
ng pla
n is made for formi
ng parts. I
n the process of mould desig
n, the famous desig
n a
nalysis software such as UG/NX a
nd AutoCAD is adopted. The software is used for desig
n a
nd a
nalysis. The parameters of the desig
n are optimized a
nd the desig
n time is shorte
ned, a
nd the efficie
ncy of the desig
n is improved. Through the e
ntire mold desig
n, I have bee
n able to skillfully use the curre
nt commo
nly used desig
n a
nalysis software, a
nd lear
n to choose some parameters accordi
ng to the calculatio
n or experie
nce, a
nd to i
ncrease the u
ndersta
ndi
ng of the precisio
n i
njectio
n mold. Key words: cover shell; i
njectio
n moldi
ng machi
ne; parti
ng surface; gati
ng system; i
njectio
n mold 目录 摘要I Abstract II 1绪论1 1.1模具行业及产品发展现状1 1.2选题的意义3 1.3设计任务3 2塑件设计前分析5 2.1塑件模型建立5 2.2塑件参数设计6 3注塑设备和模架选择11 3.1注塑设备选择11 3.2注塑机重要参数校核12 3.3模架选择14 4浇注系统设计15 4.1主流道设计15 4.2分流到设计16 4.3浇口设计17 5成型零件设计18 5.1型腔的设计18 5.2型芯设计18 5.3斜顶件的设计19 6冷却系统设计21 6.1冷却管道的工艺设计21 6.2冷却水道的结构设计22 7模具装配和零件图24 7.1模具3D图形绘制24 7.2模具2D图绘制26 8设计存在的问题和解决思想27 结论28 致谢29 参考文献30