摘要：注射成型机是将热塑料或热固性塑料制成各种塑料的主要成型设备。其借助于金属压缩机的原理，以高速高压将塑料熔体注入到已经闭合的模具腔内，经过冷却定型，得到与模腔相一致的塑料成型方法。自往复螺杆式注射成型机问世以来，人们认为他是一种比较理想的加工设备，技术上已经发展到相当完善的地步（如高速高效、自动、精密等）。5476
关键词：注塑机；合模装置；注射装置
Injection Molding Machine
Abstract：Injection molding is used to create many things such as wire spools, packaging, bottle caps, automotive dashboards, pocket combs, and most other plastic products available today. Injection molding is the most common method of part manufacturing. It is ideal for producing high volumes of the same object. Some advantages of injection molding are high production rates, the ability to use a wide range of materials, low labor cost, minimal scrap losses, and little need to finish parts after molding. Some disadvantages of this process are expensive equipment investment, potentially high running costs, and the need to design moldable parts.
Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.
KeyWords：injection molding machine；clamping device；injection unit
目录
1 引言1
1.1 课题的意义1
1.2 课题的目的1
1.3 课题的研究范围2
1.4 课题要达到的技术要求2
1.4.1 注射压力2
1.4.2 锁模力3
1.5 国内外的发展概况及存在的问题3
1.5.1 我国注塑机的发展现状和发展前景3
1.5.2 国内外塑料注射机的差距4
1.6 课题的难点4
2 塑料注射机的简介5
2.1 注塑机的概述5
2.2 注塑机的分类5
2.3 注塑机的工作原理6
2.4 注塑机的结构组成7
2.4.1 注射装置7
2.4.2 合模装置9
2.4.3 调模装置11
2.4.4 顶出装置12
2.4.5 开模装置12
2.5 注射成型机的单元操作12
2.5.1 闭模与合紧12
2.5.2 注射装置前移和注射12
2.5.3 压力保持12
2.5.4 制品冷却和预塑化12
2.5.5 注射装置后退和开模顶出制品13
2.6 设计思想13
3 塑料注塑机注射装置的设计14
3.1 注射装置14
3.1.1 注射装置的型式14
3.1.2 螺旋杆式塑化部件的设计15
3.1.3 机筒18
3.1.4 螺杆的传动装置20
3.1.5 螺杆的转速和调速范围22
3.1.6 喷嘴22
4 塑料注射机的基本参数25
4.1 注射量25
4.2 螺杆直径25
4.3 螺杆转速25
4.4 注射压力26
4.5 注射速率26
4.6 锁模力26
4.7 其它参数确定26
4.8 数据表28
5 塑料注射机合模装置设计计算28
5.1 合模类型的选择28
5.2 调整模板间距和行程结构29
5.2.1 调模装置的机构29
5.2.2 动模板行程调节30
5.3 模板31
5.3.1 模板的平面布置形式32
5.3.2 模板设计的技术要求32
5.3.3 模板强度计算32 塑料注射机机械系统整体设计+CAD图纸:http://www.751com.cn/jixie/lunwen_2511.html