1、中北大学 2013 届本科毕业设计说明书 1 汽车保险杠 注射 模 具 设计 摘要 ： 随着汽车工业的发展，汽车保险杆作为一种重要的安全装置走向了革新的道路，保险杆除了有保护功能外，还要追求与车体造型的和谐与统一，追求本身的轻量化和表亮化。本文叙述了其注塑模具设计的一般流程，包括塑胶件的工艺分析；模具具体结构的设计；及模具各种 2D、 3D 工程图的绘制；热流道技术；注塑成型设备的选择；相关参数的计算与说明等等。相比其他注塑模设计，本文采用目前模具设计中先进的热流道技术，包括喷嘴的设计、流道板的具体参数的选择与设计等等。 本塑件是一个宽度 1.6米左右，高 0.3 米左右，厚度 2.54 厘米
2、之间的汽车后保险杠。塑件整体尺寸较大，无螺纹，所以不需要涉及螺纹设计。这次设计的模具的顶出方式采用简单脱模机构中的顶杆脱模机构。顶杆脱模机构是最典型的简单脱模机构，它结构简单，制造容易且维修方便。 在整个设计工作中，本文主要运用 3D 软件 Pro/E 以及 CAD 软件 来完成产品的造型。此外还利用 CAD 绘制了模具装配图以及各种成型零件图。这是第一次利用绘图软件对整套模具进行设计，对所学知识进行了全面巩固，意义重大！ 关键词 ： 热流道；注塑模设计； Pro/E； CAD 中北大学 2013 届本科毕业设计说明书 2 Bumper Mould Design Abstract： The b
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4、the key positions. This paper describes the design of its injection mold of the general processes, including plastic pieces of technology analysis； specific structure of the mold and die various 2 D, 3D rendering of the plan； hot runner technology； injection molding equipment choice of the relevant
5、parameters Calculation and description, and so on. The plastic parts are a width of 1.6 meters, 0.3 meters high, the thickness of 2.5 to 4 cm between the car rear bumper. Overall size larger plastic parts, non-threaded, so do not involve thread design. The design of the mold ejection ejection mechan
6、ism with a simple way of mandrel pulling mechanism. Mandrel ejection mechanism is the most typical simple stripping mechanism, its simple structure, easy to manufacture and easy maintenance.Compared to other injection mold design, mold design currently used in this paper in the hot runner advanced t
7、echnologies, including the nozzle design, flow-specific parameters of choice and design, and so on. Throughout the design work in this paper use 3 D software Pro / E to complete the modeling products. In addition, also has drawn up the mold assembly drawing as well as each kind of Molding Parts drawing using CAD . This is that the first time makes use of the software drawing to carry out design on package mould , have carried out all-round consolidation on what be learned knowledge， The significance is significant！ Keywords： Hot Runner； Injection Mould Design； Pro/E； CAD
