机械5

摘要 注塑模具是一种生产塑料制品的工具，其赋予塑胶制品完整的结构和精确的尺寸。注塑成型是批量生产某些形状复杂部件时用到的一种加工方法。其将塑件熔体注入型腔，在型腔内冷却成型。塑件尺寸精准，表面光洁度高，成型过程安全可靠，易于实现全自动化生产，改善了加工环境，大大缩短了产品制造周期。机油盖结构和形状较为复杂，采用PA1010材料，非常适于使用注塑模具进行生产。本篇为机油盖注塑模具设计说明书，包含了塑件分析和模具总体设计，总共九章。塑件分析包括了材料成型性能分析及塑件结构分析。模具总体设计包括了注射模具的工作原理、设计准则以及材料的选择、注射机的选择、注射机有关参数校核、分型面的确定、浇注系统设计（主流道设计及计算、浇口的选择和计算、冷料穴），成型零件的设计（凸凹模的结构设计、凸凹模的工作部分尺寸计算），模具导向机构的设计、脱模推出机构的设计、冷却系统的设计、模具的装配等方面。 关键词： PA1010、机油盖、注塑模具、浇注系统 ABSTRACT I
njectio
n molds are a tool for the productio
n of plastic products,it gives plastic products complete structure a
nd precise size. I
njectio
n moldi
ng is a ki
nd of processi
ng method used i
n mass productio
n of complex parts of some shapes. Whichwill melt i
nto the mold cavity, i
n the cavity cooli
ng moldi
ng. Plastic parts size accurate, high surface fi
nish, formi
ng process safe a
nd reliable, easy to achieve fully automated productio
n, improve the processi
ng e
nviro
nme
nt, greatly reduci
ng the product ma
nufacturi
ng cycle. Oil cover structure a
nd shape is more complex, the use of PA1010 material,very suitable for the use of i
njectio
n mold for productio
n. This is the desig
n of the oil cap i
njectio
n mold desig
n, i
ncludi
ng the plastic parts a
nalysis a
nd the overall desig
n of the mold, a total of
ni
ne chapters. Plastic parts a
nalysis i
ncludes material formi
ng performa
nce a
nalysis a
nd plastic structure a
nalysis. The overall desig
n of the mold i
ncludes theworki
ng pri
nciple of the i
njectio
n mold, the desig
n criteria a
nd the selectio
n of the material, the choice of the i
njectio
n machi
ne, the checki
ng of the releva
nt parameters of the i
njectio
n machi
ne, the determi
natio
n of the parti
ng surface, the desig
n of the pouri
ng system(the mai
n cha
n
nel desig
n a
nd calculatio
n, the choice of gate A
nd the desig
n of the mold, the desig
n of the mold release mecha
nism, the desig
n of the cooli
ng system, the assembly of the mold, etc., the desig
n of the mold part, the desig
n of the mold, aspect. Keywords: PA1010, oil cover, i
njectio
n mold, pouri
ng system 目录 第一章塑件成型工艺分析1 1.1塑件的外形尺寸1 1.2塑件制品的结构分析1 1.3塑件材料的成型特性。 2 1.4塑件的成型工艺参数2 第二章拟定模具的结构形式4 2.1型腔数目的确定与排布4 2.2分型面的选择4 2.3塑件的脱模方式5 2.4注射机的型号确定5 第三章浇注系统的设计7 3.1主流道的设计7 3.2浇口的设计8 3.3校核主流道的剪切速率9 3.4冷料穴的设计9 第四章成形零件的结构设计及计算10 4.1成形零件的结构设计10 4.2成型零件钢材选用10 4.3成型零件工作尺寸的计算10 4.4凹模外部尺寸13 4.5动模垫板厚度13 第五章模架的确定14 5.1各模板尺寸的确定14 5.2模架各尺寸的校核14 第六章排气槽的设计16 第七章导向与定位机构设计17 第八章脱模推出机构设计19 第九章冷却系统设计与计算20 总结22 谢辞23 参考文献24 附录25