南通大学毕业设计（论文）
ABSTRACT
This task is the design of cupcover's injection mold design. Parts model is the common one in super market.
Products of 3 D modeling, with the aid of the PRO/e design software to create cavity, live piece and other parts, and the engineering drawings is automatic generated ; the parts is evaluated by sketches and the thickness detect. Referring to the product directly 3 d model, parting surface, the slider, the mold cavity components (mold core, and the mold cavity) are created. From standard formwork choose to product output, 3D design is used, such as using PRO/E mould seat experts EMX4.1 to complete for the design of the formwork. From parts modeling to cavity, cores of design, formwork design, until the last of the mould cavity movement simulation are taken full of the PRO/e design software modules and plug-in advantage. Using a module and four cavity designs, Battlefield BC_T_1500/630 is choosed as injection machine Comprehensive injection capacity, injection molding machine clamping force, and maximum injection area and mould pressure technology parameters. Futaba is choosed as Mold base, other standard parts are selected Misumi. Using the die design software-PRO/e, from the initial part 3D modeling to the end of the mould parts of the assembly parts, mould seat design, engineering drawings files are all relied on PRO/e modules to get with the engineering drawings that meet the graduation project standard.
The characteristics of the mould is that the slider in dynamic model, oblique guide column in the mold, to ensure smooth finish side core-pulling. In addition, the necessary relevant parameters have been checked calculation of the work parts and injection machine.
Key words: Mold，Injection part，PRO/E，EMX，Practical product
II
南通大学毕业设计（论文）
III
南通大学毕业设计（论文）
IV
南通大学毕业设计（论文）
目 录
水杯盖注塑模设计 ..................................... 1 摘 要 ............................................. I ABSTRACT ............................................ II 第一章 前言 .......................................... 3
1.1 本课题研究的现状及发展趋势 ..................................................................................... 3
1.2 本课题研究的意义和价值 ............................................................................................. 3 1.3 本课题的基本内容，预计解决的难题 ......................................................................... 4
1.3.1本课题的基本内容: ............................................................................................ 4 1.3.2预计解决的难题: ................................................................................................ 4 1.4 课题的研究方法、技术路线 ......................................................................................... 4
1.4.1研究方法 .............................................................................................................. 4 1.4.2技术路线 .............................................................................................................. 4 1.5 研究工作条件和基础 ..................................................................................................... 5
第二章 塑件的分析 .................................... 6
2.1外形的尺寸 ....................................................................................................................... 6 2.2精度等级[4] ........................................................................................................................ 6 2.3PP的性能分析 ................................................................................................................... 8
第三章 注塑机选择 .................................... 9
3.1初步选定注射机 ............................................................................................................... 9
3.1.1注射量的计算 ...................................................................................................... 9 3.2注射机的相关参数选择校核 ......................................................................................... 11 3.3设备的型号及选择 ........................................................................................................ 11
3.3.1注射成型工艺[1] ................................................................................................. 11 3.3.2注射机的选用 .................................................................................................... 11 3.3.3按照预选型腔数来选择注射机： .................................................................... 12
第四章 成型零件的设计 ............................... 15
4.1成型零件的结构设计 ..................................................................................................... 16 4.1.1 凹模的结构 ....................................................................................................... 16 4.1.2凸模结构 ............................................................................................................ 16 4.2浇注系统的设计 ............................................................................................................. 18
4.2.1确定浇注系统的设计原则 ................................................................................ 18 4.2.2主流道的设计要点 ............................................................................................ 19 4.2.3主流道的设计 .................................................................................................... 19
1
南通大学毕业设计（论文）
4.2.4 浇口位置的选择 ............................................................................................... 21 4.2.5 排气系统的设计 ............................................................................................... 21 4.3成型零部件的结构设计与计算 ..................................................................................... 21
4.3.1成型零件的结构设计 ........................................................................................ 21 4.3.2成型零件的工作尺寸计算[7] ............................................................................. 22 4.3.3型芯的尺寸计算 ................................................................................................ 22 4.3.4合模导向定位结构[12] ....................................................................................... 23 4.4模架的确定 .................................................................................................................... 24
第五章 结论 ........................................ 26 参考文献 ............................................ 28 致 谢 ............................................ 29
2