毕业论文--汽车内饰件的注塑成型工艺分析与模具设计

毕业论文（设计）

汽车内饰件的注塑成型工艺分析

与模具设计

摘要

随着科学技术的发展，塑料注射成型已经广泛应用于汽车行业，在国民经济中占有重要地位。对于注射成型，塑料模具的设计至关重要。在塑料材料、加工工艺确定后，塑料模具对实现塑件加工要求、塑件使用要求和塑件外观要求，起着不可替代的作用。本文以汽车内饰件为具体实例进行注塑工艺分析与模具设计，除了工艺分析计算，还包括Moldflow成型过程模拟和UG模具设计。通过工艺分析计算，选择合适的注塑机，合理设计模具的模架、浇注系统、成形零件、导向定位机构、脱模机构、侧抽芯机构及冷却系统。利用Moldflow分析软件进行充填、料流、翘曲和冷却模拟，优化成型工艺参数、浇注系统和冷却系统，提高模具的质量。同时，应用UG的Moldwizard模块进行模具设计，充分运用标准件，提高设计效率。

关键词：浇注系统；侧抽芯；冷却系统；Moldflow分析；优化

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毕业论文（设计）

Injection process analysis and mold design of an

automobile interior

Abstract

With the development of science and technology, plastic injection molding has already been widely used in the automobile industry. It plays an important part in the national economy. For the injection molding, the design of plastic mold is essential. After the plastic material and processing technology are identified, the design of plastic mold plays an irreplaceable role in realizing the requirement of part’s processing, using and appearance. In this paper, the automobile interior is designed as the specific example for injection process analysis and mold design. In addition to the process analysis and calculation, there are also the process of Moldflow Simulation and UG mold design. Through the process analysis and calculation, we can choose the suitable injection molding machine, design the mold base, the feed system, forming parts, position-oriented institutions, Demoulding agencies, side core slide and cooling system rationally. Using the Moldflow software to simulate the process of filling, material flowing, warpage and cooling for the purpose of optimizing the molding process parameters, the feed system and cooling system. Then, we can improve the quality of the die. At the same time, with the application of UG's Moldwizard, we can make full use of standard parts and improve the efficiency in the process of mold design.

Keywords: feed system; side core-slide; cooling system; Moldflow analysis; Optimization

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毕业论文（设计）

目录

1 引言 (1)

2 塑件工艺分析 (2)

2.1 塑件成型工艺分析 (2)

2.2原料（ABS）的成型特性、性能指标与工艺参数 (2)

2.2.1 成型特性 (2)

2.2.2 性能指标 (3)

2.2.3工艺参数 (3)

3 注塑机选择 (4)

3.1 注塑机初选 (4)

3.2 注塑机校核 (4)

4 成型零件设计 (7)

4.1 成型零件结构设计 (7)

4.2 成型零件钢材选用 (7)

4.3 成型零件的力学计算 (7)

4.4 定位楔块设计 (12)

5 浇注系统设计 (14)

5.1 浇注系统的组成及设计原则 (14)

5.2 流道及浇口设计 (14)

5.2.1 主流道设计 (14)

5.2.2 冷料穴设计 (16)

5.2.3 分流道设计 (17)

5.2.4 浇口设计 (18)

5.2.5 拉料杆设计 (19)

5.3 型腔压力估算 (21)

6 分型面及排气槽设计 (22)

6.1 分型面设计 (22)

6.2 排气槽设计 (22)

7 冷却系统设计 (24)

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