1三维塑件
摘要
本次设计是以“手机外壳”塑件为原始文件，进行注塑模具设计。首选针对此塑件，进行结构分析，确定其塑件结构适合采用注塑模具结构生产，然后选择合适的高分子材料与型腔的出模数量。结合模具设计原则与设计规范，选择分型面并且分模完成成型系统零件设计，对浇注系统的设计方面，力求充填均匀，流道废料少、短。主流道采用热嘴，在热流道模具成型过程中，熔体温度在流道系统内得到准确控制，熔体以均匀的状态流入各模腔，从而可以得到高品质的零件。在脱模顶出机构上，采用均匀分布顶出系统，让塑件能够均匀的受力顶出脱模。在选择标注模架系统方面，采用了国内最大的模具企业生产的龙记GB国标标准模架系统，能够保证制造周期短，制造精度高、效率高的特点。
在完成全套的模具结构设计之后，对其生产所需的注塑机进行了选择与校核，其中校核项目锁模力、开模行程等内容。
本次设计中，采用了计算机辅助设计软件，其中包括二维设计软件AutoCAD绘制模具的总装图与非标的零件工程图，采用了三维软件进行了塑件的建模与整体装配建模。
本次设计来源于生活实践中，应用非常广泛，采用计算机辅助设计软件大大的提高了设计效率。通过完成了对应设计参数的计算与校核。经过计算校核，本套设计满足实践需求。
关键词：手机外壳；注塑模具；型腔；分型面；热流道
Abstract
This design is based on the"mobile phone shell" plastic parts as the original document, the injection mold design. The preferred method is to analyze the structure of the plastic part and determine that the structure of the plastic part is suitable for the production of injection mold structure. Then the appropriate amount of polymer material and cavity is selected. According to the design principles and specifications of the mould, the parting surface is selected and the part design of the forming system is completed by parting. For the design of the gating system, the filling is uniform and the runnerwaste is less and shorter. The hot nozzle is used in the main channel. During the forming process of the hot runner die, the melt temperature is accurately controlled in the runner system, and the melt flows into each cavity in a uniform state, thus high quality parts can be obtained. In the ejection mechanism, the ejection systemwith uniform distribution is used to eject the plastic parts under uniform force. In the selection of marking die base system, Longji GB national standard die base system produced by the largest domestic die and mould enterprises is adopted,which can ensure the characteristics of short manufacturing cycle, high manufacturing accuracy and high efficiency.
After the complete set of die structure designwas completed, the injection moulding machine needed for its productionwas selected and checked, including checking the clamping force and opening stroke of the project.
In this design, computer aided design software is used, including two-dimensional design software AutoCAD to draw the assembly drawing and non-standard parts engineering drawing of the die, and three-dimensional software is used to model the plastic parts and thewhole assembly modeling.
This design comes from life practice and iswidely used. The efficiency of design is greatly improved by using computer aided design software. The corresponding design parameters are calculated and checked. After calculation andverification, the design meets the practical needs.
Keywords: mobile phone shell; injection mould; cavity; parting surface; hot runner
目录
摘要I
Abstract II
第1章引言1
1.1热流道技术概述1
1.1.1热流道技术的优势2
1.1.2热流道技术的不足2
1.2热流道技术的发展趋势2
第2章塑件工艺分析与材料的选择3
2.1塑件工艺分析3
2.2塑件材料的选择4
2.2.1 ABS塑料的特点4
2.2.2 ABS的技术指标4
2.2.3 ABS的注塑成型工艺参数5
2.3 ABS材料的应用5
2.4塑件的成型方法6
2.5塑件的体积与质量6
2.6塑件壁厚的分析6
第3章模具结构方案的确定7
3.1出模数量与型腔布局7
3.2分型面的设计8
3.2.1分型面设计的原则8
3.2.2分型面类型的选择8
3.3分型面具体结构形式的确定9
第4章模具浇注系统的设计10
4.1浇注系统的设计原则10
4.2热流道的设计10
4.3浇注系统标准件的选用12
4.4浇口的设计12
4.5分流道的设计12
第5章模具成型系统设计14
5.1型腔结构设计14
5.2型芯结构设计15
5.3型腔成型零件尺寸计算17
5.4型芯成型零件尺寸计算17
5.5成型钢材的选用18
第6章标准模架的选用20
6.1模架概述20
6.2标准模架的选用20
6.3选标准模架20
6.4定模板与动模板的设计20
第7章注塑机的选择与校核22
7.1校核注塑机注塑量22
7.2校核压力22
7.3校核注塑机锁模力22
7.4开模行程的校核23
7.5初选注塑机型号23
第8章模具顶出脱模机构25
8.1顶出脱模机构概述25
8.2脱模机构的设计要点25
第9章合模导向机构的设计28
第10章侧向分型与抽芯机构设计29
10.1计算斜导柱倾斜角30
10.2计算斜导柱直径30
10.3计算斜导柱长度30
第11章温度调节系统设计31
第12章注塑模具工作原理32
设计总结33
致谢34
2三维注塑模装配图
A热流道注塑模装配图
A塑件图
定模板
定模座板
动模板
动模座板
滑块
脚模
推板
推件固定板
楔紧块
斜导柱
型腔
型芯
支撑柱
3设计所包含文件
4字数
5摘要
6目录
