A塑件三维
罩壳注塑模具设计
摘要
模具作为国民经济的基础工业,应用范围十分广泛。且发展至今,模具种类及功能逐渐多样化,遍及各行各业,对经济发展非常重要。总体来说模具分为三大类:五金模具、塑料模具以及其他特殊模具。其中,塑料制品在汽车、电子、家电、建材和通讯器材中被大量运用。因此,塑料模具技术的研究及发展十分重要。
此次是针对罩壳塑件的整体详细的模具设计过程。采用PC增强10%进行注塑生产,模具结构采用一模四腔的结构形式,整个过程包括对塑件的结构分析,注塑机的选定,模具浇注系统及冷却系统的设计,模腔零件和运动机构等重要尺寸的校核与设计。在注塑过程中如果想获得尺寸上的精度、塑胶件的外观、性能等等以上方面都可以满足使用要求的塑件图,在对模具制作各方面都需要要求做到,从而满足要求。从模具加工方面来看,需要加工简单,制造及维修成本低;从模具使用角度来看,要操作方便,结实耐用,以及后续维修简便。所以在模具设计时,要综合到各方面的因素与考虑,最终拟定一个合理的设计方案。
关键词:塑料模具;模具设计;尺寸的校核与设计;
Abstract
As the basic industry of national economy, mould is widely used. And development so far, mold types and functions gradually diversified, throughout all walks of life, is very important for economic development. Generally speaking, mold is divided into three categories: Hardware mold, plastic mold and other special mold. Among them, plastic products are widely used in automobiles, electronics, home appliances, building materials and communication equipment. Therefore, the research and development of plastic mold technology is very important.
This paper is a detailed mold design process for the shell plastic parts. The first mock exam is made of PC enhanced 10% for injection molding. The mold structure is made of one mold and four cavity. The whole process includes the structural analysis of the plastic parts, the selection of the injection machine, the design of the mold gating system and the cooling system, the checking and design of the important dimensions of the cavity parts and the moving mechanism. In the process of injection molding, if you want to obtain the plastic part drawing which can meet the requirements in the aspects of dimensional accuracy, appearance and performance of plastic parts, you need to meet the requirements in all aspects of mold making, so as to meet the requirements. From the perspective of mold processing, it needs simple processing, low manufacturing and maintenance costs; from the perspective of mold use, it needs to be easy to operate, durable, and easy to follow-up maintenance. So in the mold design, to integrate all aspects of factors and considerations, and ultimately develop a reasonable design.
Key words: plastic mold; mold design; size check and design;
目录
摘要1
Abstract 2
第一章绪论6
1.1注塑模具的概述6
1.2塑料简述7
1.3注塑模成型工艺7
1.4注塑模具的重要性8
1.5国内模具的优劣势9
1.6国外模具的发展9
1.7注塑模具的现状与发展与课题的意义10
第二章塑件的结构分析11
2.1罩壳塑件的结构分析11
2.2塑件的工艺性分析11
2.3塑件材料的成型工艺分析12
2.4塑件测量与质量计算13
第三章初选注塑机14
3.1注塑机的注射量计算14
3.2初选注塑机15
3.3校核型腔出模数量16
第四章浇注系统的设计17
4.1分型面选择与设计17
4.2型腔数目与排位方案的确定18
4.3主流道的设计18
4.4模具分流道的设计19
4.5模具浇口设计20
4.6模具冷料穴设计21
4.7模具排气方式设计22
第五章模具调温系统的设计. 23
5.1温度调节系统的设计要点23
5.2冷却系统的设计23
5.3计算塑件每小时注射量24
5.4计算范围时间内的释放热量24
5.5计算冷却水的体积流量25
第六章成型零部件设计26
6.1成型尺寸的计算校核27
6.1.1计算塑件型腔长度径向尺寸27
6.1.2计算塑件型腔宽度径向尺寸27
6.1.3计算塑件型腔深度尺寸27
6.1.4计算塑件型芯长度径向尺寸28
6.1.5计算塑件型芯宽度径向尺寸29
6.1.6计算塑件型芯高度尺寸29
6.2计算型腔侧壁厚度30
6.3侧向分型抽芯机构设计31
6.3.1滑块导向滑槽设计31
6.3.2抽芯机构的结构形式31
6.4斜导柱滑块侧向抽芯机构计算32
6.4.1抽芯距S'的计算32
6.4.2斜导柱倾斜角设计32
6.4.3滑块抽芯力的计算32
6.4.4斜导柱直径计算33
第七章其余机构的设计与注塑机校核34
7.1脱模机构的设计34
7.1.1脱模力根据如下公式校核35
7.1.2推杆强度校核35
7.2合模导向机构的设计36
7.2.1导柱导套结构36
7.2.2复位杆弹簧结构37
7.3注塑机锁模力的校核38
7.4注射压力的校核38
7.5最大注射量校核39
7.6注塑机的开模行程的校核39
7.7模架的选择40
7.8模具工作原理说明41
总结42
致谢43
附图模具总装图44
参考文献46
三维注塑模装配图
A4塑件图
A0注塑模装配图
A1动模板
A1定模板
A2面针板
A3型腔
A3型芯
A3滑块
A3滑块镶件
A3顶板
A4型芯镶件
字数
摘要
目录
设计所包含文件