摘要
注射成型是热塑工艺技术中最为显着的批量成型技术,使用非常广泛。而本次选的课题风扇叶零件则是来自于生活中,具有一定制造需求,对此配合作用要充分保证塑件的品质和作用需求。因此首先要对零件进行性能分析,分析中发现塑件在配合组装后的成品要求苛刻,因此对外观轮廓和需要配合的部位尺寸要求为中等精度。据此模具定然要设计出符合零件在配合部分定尺寸达到精度范围。
在确定好注射工艺和模具各系统设计方案后,操作UG三维软件对ABS材质的风扇叶塑料件建模并进行模具工艺分析,后续也作出了计算检验使其相互之间校核合理使用,避免过度浪费,也起到降低塑件制造成本的好处,也更严谨地改良腔体部件设计。最后阐述了模具在成型和动作的工作原理,并经由大量计算校核公式对各系统与注塑机之间的校正。
关键词:风扇叶;注射模成型;计算校准;模具设计;
ABSTRACT
I
njectio
n moldi
ng is the most sig
nifica
nt batch moldi
ng tech
nology i
n thermoplastic tech
nology, which is widely used. The fa
n blade parts selected for this project are from life a
nd have certai
n ma
nufacturi
ng requireme
nts, so the matchi
ng fu
nctio
n should fully e
nsure the quality a
nd fu
nctio
n requireme
nts of the plastic parts. Therefore, it is
necessary to co
nduct performa
nce a
nalysis o
n the parts first. It is fou
nd i
n the a
nalysis that the fi
nished products of plastic parts after fitti
ng a
nd assembly are dema
ndi
ng, so the appeara
nce co
ntour a
nd the size of the parts to be fitted are required to be medium precisio
n. Accordi
ng to this, the mold must be desig
ned to meet the precisio
n ra
nge of the parts i
n the matchi
ng part. After determi
ni
ng the i
njectio
n process a
nd the desig
n scheme of each system of the mold, the UG 3D software was used to model the ABS plastic fa
n blade a
nd a
nalyze the mold process. Later, the calculatio
n a
nd i
nspectio
n were made to check each other for reaso
nable use, avoid excessive waste, reduce the ma
nufacturi
ng cost of the plastic parts, a
nd improve the desig
n of the cavity parts more rigorously. Fi
nally, the worki
ng pri
nciple of the mold i
n moldi
ng a
nd moveme
nt is described, a
nd the correctio
n betwee
n each system a
nd the i
njectio
n moldi
ng machi
ne is made through a large
number of calculatio
n a
nd verificatio
n formulas. KeyWords: Fa
n blade; I
njectio
n moldi
ng; Calculatio
n calibratio
n; Mold desig
n; 目录 摘要I ABSTRACT II 1前言1 1.1注塑模具技术简介1 1.2注塑成型技术应用与发展1 1.3选题技术思路与设计重点1 2制品件成型分析与工艺选定2 2.1制品件工艺分析与材料选定2 2.2塑件的工艺性分析3 2.3注射机的选择4 3模具设计7 3.1型腔排位设计7 3.1.1型腔数目的确定7 3.1.2型腔的布置7 3.1.3分型面的选择7 3.2浇注系统的设计8 3.2.1主流道的设计8 3.2.2分流道的设计9 3.2.3浇口的设计10 3.2.4冷料穴与主凝料拉料设计11 3.3排气系统的设计12 3.4腔体零部件设计12 3.4.1腔体零部件结构设计12 3.4.2模具成型零部件工作尺寸计算13 3.4.3型腔工作尺寸计算14 3.4.4型芯工作尺寸计算15 3.4.3模具腔体零件钢材选择15 3.5抽芯机构类型的选择16 3.5.1抽芯距的计算16 3.5.2侧抽芯力计算16 3.5.3斜导柱滑块机构17 3.6顶杆脱模机构18 3.6.1脱模力计算18 3.6.2推杆直径选取19 3.7模具冷却管道系统设计20 3.7.1冷却系统的设计方案21 3.8模架的选择21 4模具与注塑机的工艺参数校核23 4.1成型工作原理23 4.2注射量的校核23 4.3成型压力校核24 4.4合模锁力校核24 4.5模具在注塑机开模行程校核25 4.6模具安装校核25 4.6.1模具平面最大宽度校对26 4.6.1模具总厚安装校对26 4.7推出机构推起高度校核26 总结27 致谢28 参考文献29 附录I二维装配图30 1前言 1.1注塑模具技术简介 我国在发展模具制造业中,已是世界工业主体的部分,主要是近年来国家政策推进和市场需求,让我过模具得到良好的发展。然而在先进模具技术接洽中,虽然已达到核心技术掌握,但是实际应用上,普遍不够广泛应用到中小型企业中,造成一些高新价值的模具市场远远跟不上。与国内外对比,我过模具发展还有非常大的挺进空间。包括国外对模具的发展都在加速CAD/CAE/CAM在模具智造中应用
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njectio
n moldi
ng is the most sig
nifica
nt batch moldi
ng tech
nology i
n thermoplastic tech
nology, which is widely used. The fa
n blade parts selected for this project are from life a
nd have certai
n ma
nufacturi
ng requireme
nts, so the matchi
ng fu
nctio
n should fully e
nsure the quality a
nd fu
nctio
n requireme
nts of the plastic parts. Therefore, it is
necessary to co
nduct performa
nce a
nalysis o
n the parts first. It is fou
nd i
n the a
nalysis that the fi
nished products of plastic parts after fitti
ng a
nd assembly are dema
ndi
ng, so the appeara
nce co
ntour a
nd the size of the parts to be fitted are required to be medium precisio
n. Accordi
ng to this, the mold must be desig
ned to meet the precisio
n ra
nge of the parts i
n the matchi
ng part. After determi
ni
ng the i
njectio
n process a
nd the desig
n scheme of each system of the mold, the UG 3D software was used to model the ABS plastic fa
n blade a
nd a
nalyze the mold process. Later, the calculatio
n a
nd i
nspectio
n were made to check each other for reaso
nable use, avoid excessive waste, reduce the ma
nufacturi
ng cost of the plastic parts, a
nd improve the desig
n of the cavity parts more rigorously. Fi
nally, the worki
ng pri
nciple of the mold i
n moldi
ng a
nd moveme
nt is described, a
nd the correctio
n betwee
n each system a
nd the i
njectio
n moldi
ng machi
ne is made through a large
number of calculatio
n a
nd verificatio
n formulas. KeyWords: Fa
n blade; I
njectio
n moldi
ng; Calculatio
n calibratio
n; Mold desig
n; 目录 摘要I ABSTRACT II 1前言1 1.1注塑模具技术简介1 1.2注塑成型技术应用与发展1 1.3选题技术思路与设计重点1 2制品件成型分析与工艺选定2 2.1制品件工艺分析与材料选定2 2.2塑件的工艺性分析3 2.3注射机的选择4 3模具设计7 3.1型腔排位设计7 3.1.1型腔数目的确定7 3.1.2型腔的布置7 3.1.3分型面的选择7 3.2浇注系统的设计8 3.2.1主流道的设计8 3.2.2分流道的设计9 3.2.3浇口的设计10 3.2.4冷料穴与主凝料拉料设计11 3.3排气系统的设计12 3.4腔体零部件设计12 3.4.1腔体零部件结构设计12 3.4.2模具成型零部件工作尺寸计算13 3.4.3型腔工作尺寸计算14 3.4.4型芯工作尺寸计算15 3.4.3模具腔体零件钢材选择15 3.5抽芯机构类型的选择16 3.5.1抽芯距的计算16 3.5.2侧抽芯力计算16 3.5.3斜导柱滑块机构17 3.6顶杆脱模机构18 3.6.1脱模力计算18 3.6.2推杆直径选取19 3.7模具冷却管道系统设计20 3.7.1冷却系统的设计方案21 3.8模架的选择21 4模具与注塑机的工艺参数校核23 4.1成型工作原理23 4.2注射量的校核23 4.3成型压力校核24 4.4合模锁力校核24 4.5模具在注塑机开模行程校核25 4.6模具安装校核25 4.6.1模具平面最大宽度校对26 4.6.1模具总厚安装校对26 4.7推出机构推起高度校核26 总结27 致谢28 参考文献29 附录I二维装配图30 1前言 1.1注塑模具技术简介 我国在发展模具制造业中,已是世界工业主体的部分,主要是近年来国家政策推进和市场需求,让我过模具得到良好的发展。然而在先进模具技术接洽中,虽然已达到核心技术掌握,但是实际应用上,普遍不够广泛应用到中小型企业中,造成一些高新价值的模具市场远远跟不上。与国内外对比,我过模具发展还有非常大的挺进空间。包括国外对模具的发展都在加速CAD/CAE/CAM在模具智造中应用
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