LCD玻璃盖成型工艺及注射模设计+CAD图纸
关键词：注塑模具；分型面； 浇注系统
LCD glass lid molding and injection mold design
Abstract: This paper is about the design of LED glass cover mold plastic parts, although not very complicated, but the difficulty of the design is the design part surface finish requirements and the design of gating system. The design of the main use of UG software, the overall structure according to the production practice to design the glass cover injection mold, plastic parts through the analysis of the shape, size and so on to determine the process. Mainly includes the choice of parting surface, gating system design, calculation of molding parts, ejection mechanism and the cooling system design, in addition to the remolding force was calculated, and chooses the appropriate injection molding machine. Selection of this design uses UG to carry on the mold, screw, rod and other parts of the design, the installation is complete, direct export 2D assembly drawing and parts drawing, greatly shorten the design time.
Keywords: injection mold; parting; casting system
目 录
1 绪论 1
1.1 引言 1
1.2 我国模具技术的现状及今后发展趋势 1
1.3 注塑模具的发展及前景 2
2 注塑件的设计 3
2.1 材料性能 3
2.1.1 塑件材料成型性能 3
2.1.2 注塑成型工艺参数 4
2.2 脱模斜度 5
2.3 圆角 5
2.4 塑件的尺寸精度 5
2.4.1 尺寸精度 6
2.4.2 塑件体积和质量的计算 6
3 注塑机的型号和规格选择及校核 7
3.1 注射机的选用 7
3.2 注射压力校核 8
3.3 锁模力校核 8
3.4 模具厚度校核 8
3.5 开模行程校核 9
4 模具设计 10
4.1 分型面的设计 10
4.2 型腔数的确定 10
4.3 模具浇注系统设计 11
4.3.1 主流道和分流道设计 11
4.3.2 浇口套设计 13
4.3.3 冷料穴及拉料杆 13
4.3.4 排气方式 14
4.4 成型零件设计 14
4.4.1 型腔及型芯的设计 14
4.4.2 工作尺寸计算 15
4.5 模架的选取 17
4.6 导向机构的设计 18
4.7 脱模机构的设计 18
4.7.1 顶出机构的设计原则 18
4.7.2 推出机构设计 19
4.8 冷却装置的设计 22
4.8.1 温度调节对塑件的影响 22
4.8.2 冷却系统的设计原则 22
4.8.3 冷却管道传热面积及管道数目的计算 24
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