机械5

接水盒注塑成型工艺及模具设计 摘要 本设计题目为接水盒成型工艺及模具设计，体现了盒型塑料零件的设计要求、内容及方向，有一定的设计意义。通过对该零件模具的设计，进一步加强了设计者注塑模设计的基础知识，为设计更复杂的注塑模具做好了铺垫和吸取了更深刻的经验。 本设计运用塑料成型工艺及模具设计的基础知识，首先分析了塑件的成分及性能要求，为选取浇口的类型做好了准备；然后估算了塑件的体积，便于选取注塑机及确定型腔数量；最后分析了塑件的特征，确定模具的设计参数、设计要点及推出装置的选龋 本塑件形状规则，壁厚均匀，该塑件两侧开有型孔，所以在脱模时必须考虑设计一个侧抽芯机构在开模时随着开模过程的进行使侧型芯从塑件中脱离。本副模具的设计中，在定模板上装有斜导柱，在开模时顶斜导柱与侧滑块接触，在开模的过程中，斜导柱与侧滑块发生相对移动，促使斜滑块与塑件分离。这种机构脱模可靠，设计方便且在模具中占用空间较小，非常适合在本副模具中使用。 关键词：注塑模直浇口斜导柱侧抽芯 I
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ng 目录 1.绪论1 1.1国内模具的现状和发展趋势2 1.2国外模具的现状和发展趋势2 1.3注塑成型模具设计与制造3 2.结构工艺分析4 2.1塑件工艺分析4 2.2脱模斜度4 2.3 ABS性能特征及成型工艺参数5 3.确定模具的结构形式7 4.确定型腔数量和排列方式8 4.1型腔数量的确定8 4.2型腔形式的确定8 5.分型面位置的确定9 6.注射机的选择10 6.1注射量的计算10 6.2锁模力计算10 6.3注射机的选择10 7.浇注系统及排气系统设计12 7.1主流道设计12 7.2排气系统设计12 8.成型零件结构设计13 8.1型腔13 8.2型芯14 8.3侧滑块15 8.4成型零件钢材的选用16 9.成型零件工件尺寸的计算16 10.侧抽芯机构的设计17 10.1侧抽芯机构类型选择17 10.2抽芯距与抽拔力计算17 10.3斜导柱尺寸计算18 11.冷却系统设计20 12.选择模架22 13.选用标准件23 13.1螺钉23 13.2导柱导套23 14.注射机有关参数校核25 14.1最大注射量的校核25 14.2注射压力的校核25 14.3锁模力校核25 14.4模具尺寸的校核25 致谢26 参考文献27