机械5

摘要 塑料在工业快速发展，提出了质量好，加工精度高，开发周期短等注塑模具的设计和生产的要求越来越高，能够适应这种需求已成为模具制造企业发展的关键因素。 本次设计的是吸尘器外壳的注塑模具。吸尘器外壳属于日常生活用品，所用材料是当前应用较为广泛的材料ABS。在设计中，分析塑件的工艺性。模具结构可采用一模一腔，潜伏式浇口进料，注射机采用HTF360X2A型号，设置冷却系统。包括零部件设计成型，浇注系统设计，脱模机构的设计等。并且着重介绍了注射加工方法、模具的结构。设计出一套塑料注塑模具，并对模具以及主要零件进行了图纸绘图。 此次设计的过程中查阅了大量的模具设计资料，通过吸尘器外壳塑料模具的设计与应用，实现了吸尘器外壳制作工艺上的突破，同原有的设计方法相比，模具的应用不但提高了生产效率而且提升了产品的质量，模具整体设计的思路和要求符合现代设计潮流和未来的发展方向 关键词：吸尘器外壳；注塑模具；潜伏式浇口；注射机；浇注系统 Abstract With the rapid developme
nt of plastics i
ndustry, the desig
n a
nd productio
n requireme
nts of i
njectio
n moulds, such as good quality, high processi
ng accuracy a
nd short developme
nt cycle, are becomi
ng higher a
nd higher. It has become a key factor for the developme
nt of mould ma
nufacturi
ng e
nterprises to adapt to this dema
nd. This desig
n is the i
njectio
n mould for thevacuum clea
ner shell. Vacuum clea
ner shell belo
ngs to daily
necessities, a
nd the material used is ABS,which iswidely used at prese
nt. I
n the desig
n, the tech
nological properties of plastic parts are a
nalyzed. Mold structure ca
n be used i
n o
ne mold cavity, late
nt gate feed, i
njectio
n moldi
ng machi
ne usi
ng HTF360X2A model, set up cooli
ng system. I
ncludi
ng parts desig
n a
nd shapi
ng, gati
ng system desig
n, demouldi
ng mecha
nism desig
n, etc. The i
njectio
n processi
ng method a
nd the structure of the mould are emphatically i
ntroduced. A set of plastic i
njectio
n mouldswas desig
ned, a
nd the drawi
ngs of the moulds a
nd the mai
n partswere draw
n. I
n the process of this desig
n,we co
nsulted a lot of mould desig
n data. Through the desig
n a
nd applicatio
n of the plastic mould for thevacuum clea
ner shell,we realized a breakthrough i
n the ma
nufacturi
ng process of thevacuum clea
ner shell. Comparedwith the origi
nal desig
n method, the applicatio
n of the mould
not o
nly improved the productio
n efficie
ncy but also the product quality. The idea a
nd requireme
nt of the overall desig
n of the mould co
nformed to the moder
n desig
n tre
nd a
nd the future. developme
nt directio
n Keywords:vacuum clea
ner shell; i
njectio
n mould; late
nt gate; i
njectio
n machi
ne; gati
ng system 目录 摘要I Abstract II 1绪论1 1.1塑料简介1 1.2注塑成型及注塑模1 2塑件结构分析3 2.1塑件的材料选择4 2.2塑件的结构和尺寸精度表面质量分析4 2.2.1塑件的结构设计4 2.2.2塑件尺寸及精度4 2.2.3塑件表面粗糙度5 2.3计算塑件的体积、质量5 3塑件成型方案设计6 3.1分型面选择6 3.2型腔数的确定6 3.3型腔布局7 3.4浇注系统的类型和位置的选择7 3.5成型零件结构设计8 3.5.1型腔设计8 3.5.2型芯设计9 3.6脱模机构的设计10 3.6.1脱模机构的选用原则： 11 3.6.2推杆和斜顶推出机构设计11 3.6.3脱模力的计算12 3.7导向与定位机构设计13 3.8排气及引气系统的设计14 3.9模温调节系统的设计14 3.10模架选用16 3.11注塑模具的工作原理17 4模具零件设计19 4.1模具成型零件尺寸计算19 4.2模具强度与刚度校核19 4.3浇注系统的设计20 4.3.1主流道的设计20 4.3.2分主流道的设计21 4.3.3浇口的设计21 4.4模具冷却系统的设计22 5注射机的选用及相关参数的校核23 5.1相关参数23 5.2最大注塑量校核24 5.3锁模力校核25 5.4模具与注塑机安装部分相关尺寸校核25 5.5开模行程校核26 总结27 致谢28 参考文献29