设计简介
摘要
模具是近代工业产品大量生产所依赖的一项重要工业与技术。模具制造的精密程度和技术层次，对于生产产品的品质，生产原料的有效利用，以及生产力的提高等方面，均有绝对性的影响。模具业为一切工业之母，而模具业又以塑料模为主。与我们生活息息相关的家电产品，电信产品及汽车零件中，大部分皆为塑料制品。科技文明的进步，人类生活水平不断提高在工业社会里各产品推陈出新。为达到此目的，必须以模具大量生产，以达到尺寸稳定，经济实用的目的。
该设计的设计题目是盖塞注塑模具设计，由于该塑件的结构特点和本质特性，造成了它的生产类型，该塑件的生产为大批量生产、PS（聚苯乙烯）塑料的成型性能特点以及盖塞的结构的特点，设计成盖塞注塑模具较为合理。由于盖塞为日常通用零件，对其精度要求并不是很高。
但由于其特殊的结构原因，在成型的时候需要成型外部螺纹，使模具结构变得相对复杂，从而增加了装配时的难度。为成型螺纹，模具结构上需要采用螺纹抽芯机构，为便于螺纹型芯的抽出，模具采用齿轮齿条抽芯机构，即可采用普通卧式注塑机，由于塑件对精度要求不高，成型零件加工也相对容易。
本模具采用一模两腔，但总体上该模具机构相对简单，制造容易，生产周期不是很长，从而节约了企业公司单位的加工成本，大大的缩短了模具制造周期。
关键词：外部螺纹；螺纹抽芯；齿轮齿条机构
Abstract
Mold is a product of modern industrial mass production depends is an important industrial and technology. Mold manufacturing and technical level of sophistication, for production of quality products, efficient use of raw materials, as well as increased productivity, etc., have absolute influence. Mold industry is the mother of all industries, while the plastic mold industry again dominated. With our lives, home appliances, telecommunication products and automobile parts, most are all plastic products. Technological advances of civilization, human beings living standards continue to improve in the industrial society of each product innovation. For this purpose, the mold must be produced in large quantities in order to achieve dimensional stability, economical and practical purposes.
This design titled The closure injection mold design, due to the essential characteristics of the plastic lid stopper member, the stopper lid plastic parts production batch, PS (polystyrene) plastic molding performance characteristics and the structural characteristics of the cover plug, designed to cover the plug injection mold is more reasonable. And the cover plug for the common parts, its precision is not very high and other conditions. Also due to the structural characteristics of various reasons, we need external thread molding, the mold structure when the molding becomes relatively complicated and more difficult during assembly. The thread forming, need to adopt the structure of the mold core pulling thread, the thread core to facilitate the extraction of the mold core pulling rack and pinion mechanism, you can use ordinary horizontal injection molding machine, and the accuracy is not required for plastic parts, molded parts machining easier.
The plastic mold using a two cavity mold, the mold body generally simple, easy to manufacture, short production cycle, saving companies the cost of processing and shorten the mold manufacturing cycle.
Key words: External Thread; Thread Core Pulling; Rack And Pinion Mechanism
模具是近代工业产品大量生产所依赖的一项重要工业与技术。模具制造的精密程度和技术层次，对于生产产品的品质，生产原料的有效利用，以及生产力的提高等方面，均有绝对性的影响。模具业为一切工业之母，而模具业又以塑料模为主。与我们生活息息相关的家电产品，电信产品及汽车零件中，大部分皆为塑料制品。科技文明的进步，人类生活水平不断提高在工业社会里各产品推陈出新。为达到此目的，必须以模具大量生产，以达到尺寸稳定，经济实用的目的。
该设计的设计题目是盖塞注塑模具设计，由于该塑件的结构特点和本质特性，造成了它的生产类型，该塑件的生产为大批量生产、PS（聚苯乙烯）塑料的成型性能特点以及盖塞的结构的特点，设计成盖塞注塑模具较为合理。由于盖塞为日常通用零件，对其精度要求并不是很高。
但由于其特殊的结构原因，在成型的时候需要成型外部螺纹，使模具结构变得相对复杂，从而增加了装配时的难度。为成型螺纹，模具结构上需要采用螺纹抽芯机构，为便于螺纹型芯的抽出，模具采用齿轮齿条抽芯机构，即可采用普通卧式注塑机，由于塑件对精度要求不高，成型零件加工也相对容易。
本模具采用一模两腔，但总体上该模具机构相对简单，制造容易，生产周期不是很长，从而节约了企业公司单位的加工成本，大大的缩短了模具制造周期。
关键词：外部螺纹；螺纹抽芯；齿轮齿条机构
Abstract
Mold is a product of modern industrial mass production depends is an important industrial and technology. Mold manufacturing and technical level of sophistication, for production of quality products, efficient use of raw materials, as well as increased productivity, etc., have absolute influence. Mold industry is the mother of all industries, while the plastic mold industry again dominated. With our lives, home appliances, telecommunication products and automobile parts, most are all plastic products. Technological advances of civilization, human beings living standards continue to improve in the industrial society of each product innovation. For this purpose, the mold must be produced in large quantities in order to achieve dimensional stability, economical and practical purposes.
This design titled The closure injection mold design, due to the essential characteristics of the plastic lid stopper member, the stopper lid plastic parts production batch, PS (polystyrene) plastic molding performance characteristics and the structural characteristics of the cover plug, designed to cover the plug injection mold is more reasonable. And the cover plug for the common parts, its precision is not very high and other conditions. Also due to the structural characteristics of various reasons, we need external thread molding, the mold structure when the molding becomes relatively complicated and more difficult during assembly. The thread forming, need to adopt the structure of the mold core pulling thread, the thread core to facilitate the extraction of the mold core pulling rack and pinion mechanism, you can use ordinary horizontal injection molding machine, and the accuracy is not required for plastic parts, molded parts machining easier.
The plastic mold using a two cavity mold, the mold body generally simple, easy to manufacture, short production cycle, saving companies the cost of processing and shorten the mold manufacturing cycle.
Key words: External Thread; Thread Core Pulling; Rack And Pinion Mechanism
目录
第1章 模具工艺规程的编制 1
1.1塑件的工艺性分析 1
1.1.1塑件的原材料分析 1
1.2计算塑件的体积和质量 2
1.3塑件注塑工艺参数的确定 3
第2章注塑模的结构设计 4
2.1 选择分型面选择 4
2.2 确定型腔的排列方式 4
2.3设计浇注系统设计 5
2.3.1主流道设计 5
2.3.2分流道的设计 5
2.3.3浇口的设计 5
2.3.4排气槽的设计 6
2.4 成型零件的结构设计 6
2.4.1型腔的结构设计 6
2.4.2型芯的结构设计 6
第3章 模具设计的有关计算 7
3.1型腔和型芯工作尺寸的计算 7
3.2螺纹型环径向尺寸计算 7
3.3 型腔底板厚度计算 8
3.4 螺纹抽芯机构设计 9
第4章模具加热和冷却系统的计算 13
4.1 求塑件在硬化时每小时释放的热量Q1 13第1章 模具工艺规程的编制 1
1.1塑件的工艺性分析 1
1.1.1塑件的原材料分析 1
1.2计算塑件的体积和质量 2
1.3塑件注塑工艺参数的确定 3
第2章注塑模的结构设计 4
2.1 选择分型面选择 4
2.2 确定型腔的排列方式 4
2.3设计浇注系统设计 5
2.3.1主流道设计 5
2.3.2分流道的设计 5
2.3.3浇口的设计 5
2.3.4排气槽的设计 6
2.4 成型零件的结构设计 6
2.4.1型腔的结构设计 6
2.4.2型芯的结构设计 6
第3章 模具设计的有关计算 7
3.1型腔和型芯工作尺寸的计算 7
3.2螺纹型环径向尺寸计算 7
3.3 型腔底板厚度计算 8
3.4 螺纹抽芯机构设计 9
第4章模具加热和冷却系统的计算 13
第5章模具闭合高度的确定 14
第6章注塑机有关参数的校核 15
第7章结构与辅助零部件的设计 16
7.1 导柱的选用 16
7.2 导套的选用 16
第8章绘制模具总装配图和非标零件工作图 18
第9章模具的装配与调试 19
9.1 模具的装配 19
9.2试模 19
9.3 试模可能产生的问题及改善措施 20
9.3.1 粘着模腔 20
9.3.2 粘着模芯 20
9.3.3 粘着主流道 21
9.3.4 成型缺陷 21
9.3.5 调整措施 23
结论 24
参考文献 25
致谢 26
