文档介绍：摘要
注射成形是成形热塑件的主要方法，因此应用范围很广。注射成形是把塑料原料放入料筒中经过加热熔化，使之成为高黏度的流体，用柱塞或螺杆作为加压工具，使熔体通过喷嘴以较高压力注入模具的型腔中，经过冷却、凝固阶段，而后从模具中脱出，成为塑料制品。
本文以小型斜齿轮为对象，详细介绍其注射模设计过程。设计中主要运用了PROE等不同的软件分别对塑件的三维结构、注射模成型部分零件、浇注系统、脱模机构等等进行了仿真设计和分析。最后进行了注射机型号的选择及校核、分型面的确定、型腔的设计、抽芯机构的设计、成型部分零件的设计、浇注系统、冷却系统、排溢引气系统、脱模机构的设计，复位系统的设计及其它零部件的设计。最后通过Autocad完成工程图的制作，并总结相关计算说明书。
关键词：小型斜齿轮；注射模；Autocad
Abstract
Injection molding is the main method of forming thermoplastic parts, so a wide range of applications. Injection molding is the plastic material into the barrel through the heating and melting, make it become the high viscosity fluid, with piston or screw as pressure tool, cavity melt through the nozzle with high pressure injection mold, after cooling, solidification stage, and then ejected from the mould, a plastic products.
This paper takes the small bevel gear as the object, the injection mold design process is introduced in detail. The design of the main use of PROE and other software to simulate the design and analysis of plastic parts of the three-dimensional structure, injection mould parts, casting system, stripping mechanism etc.. Finally, the choice of injection machine and check, type determination, cavity design, core pulling mechanism design, molding parts design, gating system, cooling system, exhaust system, air entraining demoulding mechanism design, the design of reset system and other parts. Finally, complete the creation of engineering drawing by Autocad, and summarize the related calculation specification.
Key words: small bevel gear; injection mould; Autocad
目录
摘要 1
Abstract 2
第一章前言 5
、我国塑料模具的发展现状 5
、国外塑料模的发展状况 5
第二章产品分析 7
塑件工艺分析 7
设计塑件时必须考虑的几个方面的问题 7
尺寸和精度 7
塑件的形状 7
材料分析 8
第三章注射机的选择 10
估算塑件体积: 10
注射机的类型和规格 10
注射机有关工艺参数的校对 11
第四章模具整体设计 13
型腔数目的确定 13
分型面设计 14
浇注系统设计 16
主流道设计 16
16
16
模架的选用 18
19
导向机构的设计 22
22
22
22
冷却系统 24
24
第五章模具材料的选择和装配图的