设计简介
洗发水瓶盖注塑成型工艺及模具设计
摘 要:本次模具设计的内容是“洗发液瓶盖注塑模的设计”。这个制品的结构近似一个壳体，主盖与其上面的小盖以铰链相连，打开后，小盖固定在一特定位置，合上后与主盖成一整体。设计内容是从零件的工艺分析开始的，根据工艺要求来确定设计的大体思路。其开始是从零件的材料选择，接下是成型参数、密度、收缩率的确定，模具种类与模具设计的关系、塑件的尺寸精度与结构、注射机的选择、模具设计有关尺寸的计算（包括模具行腔型芯的计算及其公差的确定）、注塑机参数的校核、模具结构设计、模具冷却、加热系统计算、注射模标准件的选用及总装技术要求等内容。
其中模具结构设计是这次设计的主要内容，其内容包含了模具的分型面选择、主流道及分流道的设计与布局，推出机构导向机构,铰链的设计等一系列模具的重要零部件的设计加工方法和加工注意要点。
塑料瓶盖的材料选用聚丙烯。首先用UG进行洗发水瓶盖的三维造型，利用CAD/CAE作出辅助分析，通过查阅各种资料，完成包括形状及尺寸方面的数据运算，然后根据洗发水瓶盖的结构特点设计了模具的型芯、型腔、脱模及整体结构。此模具的结构较为复杂，动模和定模都采用了镶拼结构。由于生产批量较大，采用一模两腔、对排的布置方式。由于聚丙烯对热较敏感，且此塑件的壁厚较薄，经过计算此设计可以不必加设冷却水道。此外，为了缩短模具的生产周期，提高生产率，本设计在很多地方采用标准件，例如模架，导柱导套。
关键词：洗发液瓶盖，注塑模，铰链，PC
Shampoo Bottle Cap Injection Molding Process
and Mold Design
ABSTRACT:The mold design and the contents of the shampoo bottle injection mold design. The structure of the products approximate a shell, the main cover their above cover is connected to the hinge, open, small cover at a particular location, close the main cover as a whole. Design from parts of the process began to determine the design according to process requirements of the general idea. Start is selected from the parts of the materials, took over the molding parameters, density, shrinkage to determine the types of mold and die design, the choice of dimensional accuracy and structural plastic parts, injection machine, mold design and calculation of the size (including computing and its tolerance of the cavity mold line core), the checking of the parameters of injection molding machines and mold structure design, mold cooling, heating system calculation, injection mold standard parts selection andassembly of technical requirements and content.
Which mold structure design is the main content of the design contains the mold parting surface of choice, sprue and shunt design and layout, the introduction of agency-oriented institutions, the important parts of the hinge design and a series of molds design and processing methods and processing points to note.
Shampoo bottle is made of polypropylene. First Pro/E is used to form three-dimensional shape of the cap of shampoo bottle, CAD/CAE makes an assisted analysis. After reading a variety of available information, the data computation of the shape and size could be completed. And then the cap of shampoo bottle in accordance with the structural characteristics of the design of the mold the core, cavity, and the overall structure of molding. The structure of this mold is rather complex, the dynamic and determined mold are both adopted composite structure. Due to the larger quantities of production, A two-mode cavity is used, the arrangement of row. As the polypropylene is more sensitive to heat, and the thinner wall thickness of plastic parts, in this design can be calculated do not need additional cooling water. In addition, in order to shorten the production cycle of mold, and improve productivity, the design adopts standard in many places , such as mold, lead guide sets of columns.
KEY WORDS: shampoo bottle cap, injection mold, hinge, PC
目 录
1.绪论 1
1.1 概述 1
1.2 设计目的及意义 1
1.3 我国塑料模具在工业中现状及展方向 1
1.3.1 塑料模具市场情况 2
1.3.2 塑料模具水平及发展趋向 2
1.4 存在的问题 4
1.5 发展展望 5
2.塑件的工艺性分析 7
2.1 塑件设计要求 7
2.2 塑件的原材料分析 7
2.3塑件的结构和尺寸精度及表面质量分析 8
2.3.1塑件的结构分析 8
2.3.2塑件尺寸精度的分析 8
2.3.3表面质量的分析 9
3.确定成型方案 10
3.1塑件的体积重量 10
3.2塑件的注射工艺参数的确定 11
4.型腔数的确定及浇注系统的设计 12
4.1分型面的选择 12
4.2型腔数的确定 12
4.3确定型腔的排列方式 12
4.4 浇注系统的设计 13
4.4.1 主流道的设计 13
4.4.2 冷料穴与拉料杆的设计 14
4.4.3分流道的设计 14
4.4.4浇口的设计 15
5.排气、冷却系统的设计与计算 17
5.1排气系统的设计 17
5.2冷却系统的设计与计算 18
6.模具工作零件的设计与计算和模架选择 20
6.1型芯设计及计算 20
6.2型腔侧壁厚度和底板厚度的计算 21
6.2.1型腔侧壁厚度的计算 21
6.2.2底板厚度的计算公式如下： 21
6.2.3模架选择 22
7.注射模的导向及脱模推出机构设计 23
7.1导向机构的设计 23
7.2 导柱导向机构 23
7.2.1导柱 23
7.2.2导向孔 24
7.2.3导柱的数量和布置 24
7.3 脱模推出机构设计 25
7.3.1 脱模机构的分类及设计原则 25
7.3.2 脱模机构的设计原则 25
7.3.3脱模力的计算 26
7.4 脱模机构设计 26
7.4.1 顶杆的设计 27
7.4.2 复位杆的设计 29
8.注射机与模具各参数的校核 30
8.1工艺参数的校核 30
8.1.1注射量的校核 30
8.1.2锁模力的校核 30
8.1.3最大注射压和的校核 31
8.2安装参数的校核 31
设计总结 33
致 谢 34
参考文献 35
摘 要:本次模具设计的内容是“洗发液瓶盖注塑模的设计”。这个制品的结构近似一个壳体，主盖与其上面的小盖以铰链相连，打开后，小盖固定在一特定位置，合上后与主盖成一整体。设计内容是从零件的工艺分析开始的，根据工艺要求来确定设计的大体思路。其开始是从零件的材料选择，接下是成型参数、密度、收缩率的确定，模具种类与模具设计的关系、塑件的尺寸精度与结构、注射机的选择、模具设计有关尺寸的计算（包括模具行腔型芯的计算及其公差的确定）、注塑机参数的校核、模具结构设计、模具冷却、加热系统计算、注射模标准件的选用及总装技术要求等内容。
其中模具结构设计是这次设计的主要内容，其内容包含了模具的分型面选择、主流道及分流道的设计与布局，推出机构导向机构,铰链的设计等一系列模具的重要零部件的设计加工方法和加工注意要点。
塑料瓶盖的材料选用聚丙烯。首先用UG进行洗发水瓶盖的三维造型，利用CAD/CAE作出辅助分析，通过查阅各种资料，完成包括形状及尺寸方面的数据运算，然后根据洗发水瓶盖的结构特点设计了模具的型芯、型腔、脱模及整体结构。此模具的结构较为复杂，动模和定模都采用了镶拼结构。由于生产批量较大，采用一模两腔、对排的布置方式。由于聚丙烯对热较敏感，且此塑件的壁厚较薄，经过计算此设计可以不必加设冷却水道。此外，为了缩短模具的生产周期，提高生产率，本设计在很多地方采用标准件，例如模架，导柱导套。
关键词：洗发液瓶盖，注塑模，铰链，PC
Shampoo Bottle Cap Injection Molding Process
and Mold Design
ABSTRACT:The mold design and the contents of the shampoo bottle injection mold design. The structure of the products approximate a shell, the main cover their above cover is connected to the hinge, open, small cover at a particular location, close the main cover as a whole. Design from parts of the process began to determine the design according to process requirements of the general idea. Start is selected from the parts of the materials, took over the molding parameters, density, shrinkage to determine the types of mold and die design, the choice of dimensional accuracy and structural plastic parts, injection machine, mold design and calculation of the size (including computing and its tolerance of the cavity mold line core), the checking of the parameters of injection molding machines and mold structure design, mold cooling, heating system calculation, injection mold standard parts selection andassembly of technical requirements and content.
Which mold structure design is the main content of the design contains the mold parting surface of choice, sprue and shunt design and layout, the introduction of agency-oriented institutions, the important parts of the hinge design and a series of molds design and processing methods and processing points to note.
Shampoo bottle is made of polypropylene. First Pro/E is used to form three-dimensional shape of the cap of shampoo bottle, CAD/CAE makes an assisted analysis. After reading a variety of available information, the data computation of the shape and size could be completed. And then the cap of shampoo bottle in accordance with the structural characteristics of the design of the mold the core, cavity, and the overall structure of molding. The structure of this mold is rather complex, the dynamic and determined mold are both adopted composite structure. Due to the larger quantities of production, A two-mode cavity is used, the arrangement of row. As the polypropylene is more sensitive to heat, and the thinner wall thickness of plastic parts, in this design can be calculated do not need additional cooling water. In addition, in order to shorten the production cycle of mold, and improve productivity, the design adopts standard in many places , such as mold, lead guide sets of columns.
KEY WORDS: shampoo bottle cap, injection mold, hinge, PC
目 录
1.绪论 1
1.1 概述 1
1.2 设计目的及意义 1
1.3 我国塑料模具在工业中现状及展方向 1
1.3.1 塑料模具市场情况 2
1.3.2 塑料模具水平及发展趋向 2
1.4 存在的问题 4
1.5 发展展望 5
2.塑件的工艺性分析 7
2.1 塑件设计要求 7
2.2 塑件的原材料分析 7
2.3塑件的结构和尺寸精度及表面质量分析 8
2.3.1塑件的结构分析 8
2.3.2塑件尺寸精度的分析 8
2.3.3表面质量的分析 9
3.确定成型方案 10
3.1塑件的体积重量 10
3.2塑件的注射工艺参数的确定 11
4.型腔数的确定及浇注系统的设计 12
4.1分型面的选择 12
4.2型腔数的确定 12
4.3确定型腔的排列方式 12
4.4 浇注系统的设计 13
4.4.1 主流道的设计 13
4.4.2 冷料穴与拉料杆的设计 14
4.4.3分流道的设计 14
4.4.4浇口的设计 15
5.排气、冷却系统的设计与计算 17
5.1排气系统的设计 17
5.2冷却系统的设计与计算 18
6.模具工作零件的设计与计算和模架选择 20
6.1型芯设计及计算 20
6.2型腔侧壁厚度和底板厚度的计算 21
6.2.1型腔侧壁厚度的计算 21
6.2.2底板厚度的计算公式如下： 21
6.2.3模架选择 22
7.注射模的导向及脱模推出机构设计 23
7.1导向机构的设计 23
7.2 导柱导向机构 23
7.2.1导柱 23
7.2.2导向孔 24
7.2.3导柱的数量和布置 24
7.3 脱模推出机构设计 25
7.3.1 脱模机构的分类及设计原则 25
7.3.2 脱模机构的设计原则 25
7.3.3脱模力的计算 26
7.4 脱模机构设计 26
7.4.1 顶杆的设计 27
7.4.2 复位杆的设计 29
8.注射机与模具各参数的校核 30
8.1工艺参数的校核 30
8.1.1注射量的校核 30
8.1.2锁模力的校核 30
8.1.3最大注射压和的校核 31
8.2安装参数的校核 31
设计总结 33
致 谢 34
参考文献 35
