摘要：本设计是对Covert电池盒成型模具的设计。在设计之前对塑件结构进行工艺性分析，根据塑件特征选择注塑机并对其进行校核；通过考虑成型的经济性、可行性等因素，确定模具的型腔数：上盖及电池盒底座为一模二腔，下盖为一模一腔。根据塑件特点确定模具的浇注系统、分型面位置，上盖及电池盒底座采用侧浇口，下盖采用点浇口；通过合理布置温度控制系统，调节模具工作温度，提高塑件的成型质量；通过结构分析和计算，采用推杆将塑件从模具中推出，下盖采用斜导柱抽芯机构。结合塑件特点和模具其他零部件的特征选择模架，并对其进行校核；模具利用直导柱导向定位，这样的结构设计可确保模具工作运行可靠。21477
毕业论文关键词： 型腔数；浇注系统；抽芯机构
Inject mold Design of Covert battery box
Abstract: This is a design of inject mold design of Covert battery box. Analysis of the process before in the design of the structure of plastic parts. Then choose injection molding machine according to the plastic parts feature and check its parameters. By considering the production of economic, feasibility and other factors, determine the number of mold cavity, the upper cover and the battery box base are a mold two cavity, the lower cover is a mold cavity.According to the plastic parts feature, determine the gating system and the parting surface. the upper cover and the battery box base use side gate, the lower cover uses pin point gate. By analyzing of structure of the plastic parts, calculate the size of the molded part, design reasonable molded parts. Through the rational layout of the temperature control system, adjust the operating temperature of the mold, Improve the quality of plastic parts molding. Remove the plastic parts from the mold by using the putter. Based on the structure analysis and calculation, the lower cover uses the bevel pillar core pulling mechanism. Combined with plastic parts feature and other parts of the mold to choose mold bracket, and check its parameters. Mold with straight guide pillar, This structure is designed to ensure reliable operation of the mold.
Key words: the number of mold cavity; the gating system; core pulling mechanism
目 录
1 综述 1
1.1 开题依据 1
1.1.1 选题背景和意义 1
1.1.2 国内外现状分析以及发展方向1
1.2 注塑模具概述 1
1.2.1 注塑模具的基本组成 1
1.2.2 注塑模具的设计要点 2
2 注塑件的设计 4
2.1 注塑件材料分析 4
2.1.1 注塑件材料特性 4
2.1.2 注塑件材料成型性能 4
2.1.3 注射成型工艺参数 5
2.2 注塑件结构工艺分析 5
2.2.1 塑件结构特点 5
2.2.2 塑件尺寸精度分析 7
2.2.3 塑件表面质量分析 7
3 注塑模具与注塑机的关系8
3.1 初选注塑机8
3.1.1 注塑机基本参数 8
3.1.2 型腔数的确定 8
3.1.3 浇注系统注射量计算 9
3.1.4 注射压力与锁模力计算 9
3.1.5 注塑机选择 10
3.1.6 标准模架的选择 10
3.2 注塑机的校核11
3.2.1 注射量、锁模力、注射压力、模具厚度的校核12
3.2.2 开模行程的校核 12
3.2.3 模具在注塑机上的安装 12
4 成型零件的设计 13
4.1 分型面的设计 13
4.1.1 分型面的选择 13
4.2 成型零件结构设计及计算 15
4.2.1 成型零件结构设计 15
4.2.2 成型零件尺寸计算 15
4.2.3 模具型腔壁厚的确定 20
5 抽芯机构 21
5.1 抽芯机构概述21
5.2 抽芯机构参数确定21
5.2.1 抽拔距与抽拔力的计算 21 Covert电池盒成型模具设计+CAD图纸:http://www.751com.cn/jixie/lunwen_13699.html