精密模具研究及线圈支架模具设计+CAD图纸
毕业论文关键词： 精密模具；注射装置；注塑模
Precision mold research and die design of coil bracket
Abstract:Precision mold research mainly introduce two kinds of precision injection unit of all electric.The article introduce the performance and applicable occasions of two kinds of precision injection unit.On the other hand,This article also introduce design process and the content of a coil support mold.To design a outstanding mold and chose a truly molding equipment,we are analysis the materials and structural of production at first,and then we begin to design every part of mold we need,including mold flow analysis, molding parts, casting system, parting and core pulling, launch mechanism design, exhaust system and cooling system. Beside,to improve reliable of mold,we need using the moldflow to Simulation the flow of parts to get dates that the plastic melt flowing in the Channel and cavity,and the dates including flow rate, pressure and temperature changes.There are another contents in the article,including checking of oblique pin strength , checking of opening stroke and checking of die shut height.
Key words: Precision molding; injection unit; injection mold
目 录
1 精密模具研究 1
1.1 直线电机注射装置1
1.2 旋转电机注射装置2
1.3 两种注射装置的特点3
1.3.1 直线电机注射装置的性能特点 3
1.3.2 旋转电机注射装置的性能特点 4
1.4 两种注射装置的适用场合4
2 塑件工艺分析 5
2.1 塑件材料特性 5
2.2 塑件结构分析 5
2.3 塑件尺寸精度分析 6
2.4 塑件表面质量和壁厚分析 6
2.5 总结 6
3 模流分析7
3.1 导入文件 7
3.2 型腔数目的确定和其分布7
3.3 分析的总体结果 8
3.4 浇口位置分析 10
3.5 分析结果的图片 11
3.6 分析结论 14
4 成型设备选择与模塑工艺参数15
4.1 计算塑件的体积 15
4.2 注塑机的初步选择 15
4.2.1 注塑机参数 15
4.2.2 注塑机初步校核 15
4.3 塑件模塑成型工艺参数的确定 16
5 注塑模的结构设计 17
5.1 分型面的选择17
5.2 浇注系统设计17
5.2.1 主流道和冷料井设计 17
5.2.2 分流道设计 18
5.2.3 浇口的设计 18
5.3 型芯和型腔结构的确定19
5.4 脱模和侧抽方式的选择19
5.4.1 顶杆的设计 20
5.4.2 侧抽的设计 21
6 注塑模尺寸设计 24
6.1 成型零件尺寸计算 24
6.2 模架的设计25
7 冷却系统和排气系统设计 26
7.1 冷却系统的设计26
7.1.1 冷却系统的有关校核 29
7.2 排气系统的设计30
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