摘要：
目前，国内PVC的发展存在着潜在的市场前景,尤其在电子，电力，建材等行业有着良好的前景。这篇论文主要是从PVC材料在国内的发展前景和注塑成型技术的出发，进行了塑件工艺方案的确定，模具的总体设计主要包括：型腔与流道的布置、浇注系统、分流道、浇口、冷料穴、排气系统的设计以及推出机构的选择。同时还进行了模具的结构设计。即：模具工作部分尺寸的计算、液压抽芯机构的分析，斜导柱侧分型的受力分析、模腔的力学设计、脱模力的计算、推出机构的尺寸计算、导柱的尺寸确定、冷却系统的设计等。最后还进行了模具参数校核、定模板的刚度和强度的校核。该塑件结构特殊，设计的模具结构相对比较复杂，设计的部件较多，在保证达到设计要求的前提下，灵活地使部分机构设计的简单实用，而且能使该套模具能实现自动脱模，减少工人的劳动强度，提高了生产率。
关键词： 顺水三通管； PVC； 注塑模具
The analysis of Rotating core pulling bodies and
the design of injection mould of the Shunshui of three
Abtract:
At present, with the development of the domestic PVC ,there is a potential market in future, particularly in electronics, electricity, building materials industry and so on. The paper is mainly from the PVC material in the country and the prospects for the development of injection molding technology, the plastic parts of the programme of identification,the design of mold includes: cavity and the flow of the layout, pouring system, streaming Road, Gate, cold material point, the exhaust system design and launch the choice. At the same time also for the structural design of the mold. Namely: the work of the size of the mold, the core pulling the hydraulic analysis, guided-ramp at the side of the Analysis, cavities of the mechanical design, Stripping of the calculation, the agency launched the size, the size of derivative - Determined that the cooling system design. Finally, check for mold parameters, the template for the stiffness and strength of the check. The special structure of plastic parts, the design of the die structure is relatively complex, designed more components, to meet the requirements of the design, under the premise,wo can see that some organizations are flexible to design a simple and practical mold, but also make the mold be automatical And reduce the labor intensity of workers and improve the productivity.
Key word: Shunshui of three PVC Injection molding
目 录
摘 要………………...I
Abtract………………….II
1．引 言……………...1
1.1 PVC塑料的现状和前景………………….……1
1.2 注塑成型概述…..1
1.3 PVC塑料注塑工节分析………...…... ………..2
2．注塑模侧分型机构分析…………...…......................4
2.1 斜导柱侧分型机构 …….…...….……..……….4
2.2 弯销侧分型机构………….………..…………...5
2.3 斜滑块侧分型机构……….………..…………...5
3．工艺分析及工艺方案的确定……………………….8
3.1 工艺分析………………………….……...……………….8
3.2 工艺方案的确定……..…...…..…………............9
4．进行注塑工艺设计….…………………………….…........10
4.1 工艺参数计算…..…………..……..….................10
4.2 塑件注塑成型工艺参数…..…..…….................11
5．模具的总体设计….…………………….…….........12
5.1 浇注系统的设计…………………….................12
5.2 分型面和排气槽设计.………..………….............16
5.3 成型零件的设计…………………………..…...17
5.4 模具结构尺寸计算………....…………………………...26
5.5 合模导向机构的设计…...……………………..............27
5.6 脱模机构的设计..………………….…………..28
5.7 弹簧复位机构设计..………..……..………………..31
5.8 冷却系统设计…………………………...……..33
6．模具的校核……………..……………………..........36
6.1 工艺参数的校核…………………….................36
6.2 安装参数校核…………………………...……. 36
结束语……………….... .38
参考文献………….…….39
致 谢………………..40
