机械5

摘要 本主要研究的是应急灯外壳注塑模具的设计方法。本文首先介绍了选题的依据以及选这个课题的意义，并简单介绍了注塑模具的发展现状。然后分析了应急灯外壳制件的工艺特点，包括结构工艺性、成型特性与条件、材料性能等，并选定了成型设备。接着述说了应急灯外壳注塑模的分型面选择、模具基本结构及模架的选定及型腔数目的选定及布置，重点论述了成型零件、浇注系统、、脱模机构、合模导向机构以及冷却系统的设计。而后选定标准模架和模具材料，并校核注射机的相关工艺参数，如最大注射量、注塑压力等。最后阐述模具的工作原理，以及对安装运行过程中可能出现的问题予以总结、分析，并给于了对应的解决方法。 本文论述的应急灯外壳注塑模具采用两板式结构，采用一模两腔的型腔布置，最后通过推板将制件推出。在设计模具的时候，需用到SoliWorks软件进行模拟，以确定型芯型腔及浇口位。此次应急灯外壳注塑模具的设计各项参数必须来源可靠、选择准确、计算无误，其中最大注射量及注射压力是计算的关键。在工艺性上保证不影响操作的同时尽量做到了加工操作简单、方便。 本设计是在传统的应急灯上进行了创新，设计采用最领先技术LED显示，并把电池装在灯内部，外部也更美观。外壳的尺寸大小适中，模架也较好的选择，模具整体不大，采用整体安装。 关键词：应急灯外壳；注塑模；两板模；浇注系统；脱模机构 Abstract The desig
ni
ng methods of i
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n mould of the Emerge
ncy light shell are mai
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ntroduced i
n this paper. This paper i
ntroduces the topic basis a
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nd briefly i
ntroduces the developme
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nd the
n a
nalyzes the process characteristics of emerge
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nd select the moldi
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n tell the type emerge
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njectio
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nd mold base selectio
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nd the
number of cavities selectio
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ndlayout, emphasis, gati
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ng parts, demouldi
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nd the cooli
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n.Fi
nally the selected sta
ndard mold a
nd mold material, a
nd process parameters of i
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nciple of the die, aswell as to the possible problems i
n the process of i
nstallatio
n a
nd operatio
n are summarized, a
nalysis, a
nd give the correspo
ndi
ng solutio
ns. Shell of emerge
ncy lamp i
njectio
n mold i
n this paper adopts two plate structure, the layout of the cavity of a mouldwith two cavities, the push platewillwork out.I
n the desig
n of mold, use the SoliWorks software to simulate, i
n order to determi
ne the core a
nd cavity a
nd ru
n
ner positio
n.Must choose accurate, reliable, accurate calculatio
n of desig
n parameters of the emerge
ncy lamp shell i
njectio
n mold, the largest i
njectio
n qua
ntitya
nd i
njectio
n pressure is the key.I
n the process that does
not affect the operatio
n at the same time as far as possible the process has the adva
ntages of simple operatio
n, co
nve
nie
nt. This desig
n is the i
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novatio
n i
n the emerge
ncy lights o
n the traditio
naldesig
n, usi
ng the most adva
nced tech
nology of LED display, a
nd the battery i
nstalled i
n the light of i
nter
nal, exter
nal a
nd more beautiful.Moderate size of shell mold, is the better choice, overall
not die, thewholei
nstallatio
n. Keyword: Emerge
ncy light shell;I
njectio
n mould;Threepe
nce mould;Gati
ng system;Mouldi
ng mecha
nism ; Space parti
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nstitutio
ns 目录 引言1 第1章应急灯外壳工艺性分析4 1.1材料性能4 1.2成型特性和条件4 1.3结构工艺性4 1.4产品几何形状分析5 1.5应急灯外壳注塑工艺参数的确定9 1.6初选注射机的型号和规格9 第2章应急灯外壳注塑模具的结构设计11 2.1分型面的选择11 2.2确定模具基本结构及模架的选定12 2.3确定型腔的数量和布局12 2.4浇注系统设计13 2.4.1主流道设计13 2.4.2分流道截面设计及布局14 2.4.3浇口设计及位置选择15 2.4.4浇口套的设计16 2.5注塑模成型零部件设计17 2.5.1成型零部件尺寸分析17 2.5.2塑件收缩率的影响17 2.5.3型腔、型芯结构设计18 2.5.4成型零件工作尺寸计算20 2.6合模导向机构设计20 2.7脱模、推出机构设计21 2.7.1推出机构的组成21 2.7.2推出机构的分类21 2.7.3推出机构的设计原则21 2.8冷却系统设计23 2.9模架及模具材料的选择24 第3章注射机相关参数校核25 3.1最大注射量的校核25 3.2注射压力校核26 3.3锁模力校核26 3.4模具厚度的校核26 3.5成型零部件强度校核计算27 第4章模具的工作原理及安装、调试28 4.1模具的工作原理28 4.2模具的安装29 4.3试模29 结论31 谢辞32 参考文献33