家用门铃后壳成型工艺分析与模具设计+CAD图纸
时间:2018-05-19 16:49 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：本设计针对家用门铃后壳的注塑模设计，根据该塑件的结构特点与成型质量要求，进行成型工艺分析，确定成型工艺参数，拟定注射成型工艺方案，并设计注塑模具及成型零件的结构设计及理论计算，合理选择注塑机和模架。本次设计重难点是解决塑件的分型，外侧表面的两个阶梯型长方体外凸出及内凹的成型及侧向分型抽芯机构。该产品设计要求大批量生产、造价便宜，为提高生产效率，本次模具设计采用一模两腔浇平衡布置。浇注系统采用矩形侧浇口，缩短浇口的冷却时间,从而缩短成型周期。本次采用圆柱型顶杆顶出机构，易加工且易于更换，而且很容易保证其配合精度和互换性。本次设计采用循环水冷却方式的冷却系统以提高塑件的工艺性能。23045 本次设计过程中，采用了Moldflow、UG设计分析软件。通过这些软件进行设计分析，运用AutoCAD2010加载燕秀工具箱完成装配图及零件图的绘制工作，优化了设计的参数并缩短了设计时间，提高了设计效率。 毕业论文关键词： 注塑模设计；分型面；侧向抽芯；型芯；型腔 Inject mold Design of Household shell after the bell Abstract: The main task of this subject is the design of injection mold for household shell after the bell , According to the structural characteristics and the requirement of forming quality of the plastic parts, Molding process analysis, determining the process parameters of injection molding process, proposed scheme , complete the structure design of injection mold , molding parts and related theoretical calculation, choose reasonable injection molding machine and mold frame.The main difficult of this design is the solution of mold joint, the two ladder type rectangular protruding and concave shape in vitro and the side parting, so core-pulling mechanism is also necessary and important.The product design requirements for mass production and the cost is cheap, in order to improve production efficiency, the mold design with one module and two cavities water balance arrangement.Casting system with a rectangular side gate, the gate to shorten the cooling time, thus shortening the molding cycle.The use of cylindrical rod ejection mechanism, is easy to machining, easy to ensure its accuracy, easy to ensure its compatibility, and easy to replace.The use of a circulating cooling water cooling system in this design to improve process performance of plastic parts. During the design , I have used Moldflow, UG design analysis software. Through these design analysis software, the use of AutoCAD2010 load Yan Xiu finished drawing toolbox assembly drawings and part drawings work to optimize the design parameters and shorten design time and improve design efficiency. Key words: inject mold design; lateral core pulling; mold joint; inclined top; core; cavity 目 录 1 塑件的工艺分析 1 1.1 塑件的原材料分析 1 1.2 塑件的结构和尺寸精度、表面质量分析 2 1.2.1 结构分析 2 1.2.2 尺寸精度分析 3 1.2.3 表面质量分析 3 2 塑件的体积和重量 4 2.1 塑件的体积和质量计算 4 2.2 初选注射机 4 2.3 注塑机重要参数校核 5 2.3.1 注射压力的校核 5 2.3.2 锁模力校核 5 2.3.3 型腔数量校核 5 2.4 塑件模塑成型工艺参数的确定 6 3 注射模的结构设计 8 3.1 分型面的选择 8 3.2 型腔数目的确定及型腔的排列 9 3.3 浇注系统的设计 9 3.3.1 主流道设计 10 3.3.2 分流道设计 10 3.3.3 浇口设计 11 3.3.4 冷料井设计 14 3.4 型腔、型芯结构的确定 14 3.5 推出方式的选择 15 3.5.1 顶杆顶出机构15 (责任编辑：qin) |