4三维零件图
基于MOLDFLOW的红英扇外壳模具设计
摘要
伴随着机械制造工业的发展，模具是工业之母的地位依然不可撼动，模具能够实现高效率状态下，同等精度和质量制品的的大批量生产。模具工业技术在不断的发展前行中得到了更加广泛的应用。特别是在电子电器设备与机械仪表设备、生活日用塑胶件中有了更高程度的提高。
本次设计是以“红英扇外壳”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。冷却系统均匀的分布在塑件的周边，使得温度冷却合理，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，其中校核项目包裹注塑量、注塑压力、锁模力、安装尺寸、顶出行程等内容。
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：注塑模具；结构设计；注塑机；校核；机械设计
Abstract
With the development of machinery manufacturing industry, mold is the mother of industry's position is still unshakable, mold can achieve high efficiency, the same precision and quality of the mass production of products. Die industry technology in the continuous development of forward has been morewidely used. Especially in electrical and electronic equipment and mechanical instrumentation equipment, daily life of plastic parts in a higher degree of improvement.
This design is based on the"hongying fan shell" plastic parts as the original document, the injection mold design. The first choice for the plastic parts, structural analysis, determine the plastic parts structure is suitable for the injection mold structure production, and then choose the appropriate polymer materials and cavity of the number of mold. Combinedwith the design principles and design specifications of the mold, the parting surface is selected and the parts of the forming system are designed by parting the mold. In terms of the design of the casting system, the company strives to achieve uniform filling, lesswaste and shorter flow passage. The cooling system is evenly distributed around the plastic parts,which makes the cooling temperature reasonable. On the ejection mechanism of ejection mold, the evenly distributed ejection system is adopted to enable the plastic parts to ejection and ejectionwith uniform force. In the aspect of selecting marking die support system, longji GB GB standard die support system produced by the largest die company in China is adopted to ensure short manufacturing cycle, high manufacturing accuracy and high efficiency.
After the completion of a full set of mold structure design, the injection molding machine required for its productionwas selected and checked, including checking the contents of package injectionvolume, injection pressure, clamping force, installation size, ejection stroke and so on.
In this design, computer aided design software is adopted, including 2d design software AutoCAD to draw the general assembly drawing of the mold and non-standard parts engineering drawing, and 3d software is adopted to conduct modeling of plastic parts and overall assembly modeling.
This design comes from the life practice, the application isverywidespread, the use of computer aided design software greatly improved the design efficiency. The corresponding design parameters are calculated and checked. After calculation andverification, this set of design meets the practical needs.
Keywords: injection mold; Structural design; Injection molding machine; Check; Mechanical design
目录
摘要I
Abstract II
1绪论1
1.1注塑模具的简介1
1.2注塑模具发展国内外现状1
1.3国内模具的优劣势2
1.4本课题研究内容2
2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3
2.2.1 ABS塑料的特点3
2.2.2 ABS的技术指标3
2.2.3 ABS的注塑成型工艺参数4
2.3 ABS材料的应用4
2.4塑件的体积与质量4
2.5塑件壁厚的分析5
3模具结构方案的确定6
3.1出模数量与型腔布局6
3.2分型面的设计6
3.2.1分型面设计的原则6
3.2.2分型面类型的选择7
3.3分型面具体结构形式的确定7
4模具浇注系统的设计8
4.1浇注系统的组成8
4.2浇注系统的设计原则8
4.3流道的设计8
4.3.1主流道的设计8
4.3.2分流道的设计9
4.3.3冷料穴的设计9
4.3.4浇口的设计9
4.4浇注系统标准件的选用10
5模具成型系统设计11
5.1型腔结构设计11
5.2型芯结构设计11
5.3型腔成型零件尺寸计算12
5.4型芯成型零件尺寸计算13
5.5成型钢材的选用13
6模具温度系统设计15
6.1模具温度调节系统概述15
6.2模具冷却系统设计要求15
6.3冷却水道的形式类型16
6.4模具冷却水道的计算校核16
7模具顶出脱模机构18
7.1顶出脱模机构概述18
7.2顶出机构零件18
7.3顶出脱模机构的分类18
7.4脱模机构的设计要点18
8标准模架的选用20
8.1模架概述20
8.2标准模架的选用20
8.3模架型号的确定20
9注塑机的选择与校核22
9.1注塑机的概述22
9.2初选注塑机型号22
9.3校核注塑机注塑量23
9.4校核压力23
9.5校核模具安装尺寸23
9.6校核移模行程23
9.7校核注塑机锁模力24
第10章Moldflow的注塑模拟成型分析25
10.1成型模拟简述25
10.2成型过程分析26
10.3充填时间分析29
10.4流动前沿温度分析29
10.5顶出时体积收缩率30
10.6锁模力的分析31
10.7冻结层因子分析32
10.8熔接痕分析33
10.9变形量分析34
10.10温度、零件35
11设计总结37
参考文献38
致谢40
附图41
5三维注塑模装配图
A1塑件图
A注塑模装配图
A1底板
A1顶板
A1定模板
A1动模板
A1面针板
A1推板
A1型腔
A1型芯
6设计所包含文件
模流分析图部分
1字数
2摘要
3目录
