机械专业——毕业论文——齿轮套件塑料模具设计与制作.doc

塑料模具（齿轮套件）的设计 摘 要: 聚酰胺（PA）的塑料齿轮套件，设计一套成型此零件的塑料注射模具。通过对齿轮套件的几何形状、使用要求和材料性能的分析，确定了模具采用三板点浇口双型腔结构，每个型腔设置三个浇点，使制品的物理性能得到保证，每个浇点用拉料杆拉断，由脱料板脱下料头。此模具选定以XS-ZY-125型注射机作模具成行机，采用了斜导柱侧向抽芯机构。并且具有三次分型，分别以限位板及分型阻力悬殊等进行分型制品中间的凹部以斜导柱、侧型芯结构成型，最终由顶管将制品顶下。合模时，顶出系统由复位杆进行复位。 关 键 词: 注射模 PA 三板点浇口 一模两腔 XS-ZY-125注射机 斜导柱侧向抽芯， 三次分型 顶管顶出 复位杆复位 Plastic mold (tooth wheel cover) design Abstract: Gathers the amide (PA) plastic tooth wheel cover, designs a set to take shape this components plastic injection mold. Through the counter gear set of geometry shape, the operation requirements and the material performance analysis, had determined the mold uses the sampan runner double die space structure, each die space establishes three pouring spots, enable the product the physical performance to obtain the guarantee, each pouring with pulls the material pole abruption, by escapes the yard lumber to take off the remnants. This mold designated makes the mold by the XS-ZY-125 injection machine to form a line machine, used the slanting guide pillar lateral to pull out the core organization. And has three minutes, respectively disparate and so on carries on minute product middle concave by the spacing board and a minute thickness drag by the slanting guide pillar, the side core structure formation, finally goes against by the top pipe the product. When gathers the mold, goes against the system to carry on the replacement by the release link. Keywords: Injection mold PA a sampan runner mold two cavity the XS-ZY-125 injection machine the slanting guide pillar lateral pulls out the core three minutes go against the crown to leave the release link to reposition 目 录 前言 摘要 1、了解塑件几何形状及塑料材料………………………………………………（1） 2、注射机的选用…………………………………………………………………（2） 2.1 按外型结构特征分类……………………………………………………（2） 2.2 按塑化方式分类…………………………………………………………（2） 2.3分析制品结构、尺寸精度及表面质量…………………………………… 2.4初步确定注射机………………………………………………………… 3、确定型腔数及位置布局方案…………………………………………………（4） 3.1 型腔数的确定……………………………………………………………（4） 3.2 型腔布局方案…………………………………………………………