空心球柄注射模设计
系 别：自动化系 专 业 班：机电0603班 姓 名：洪 勇 学 号：20061100122 指导教师：孙金风
2010年6月
空心球柄注射模设计
Injection Mould of Hollow Handle
摘 要
塑料模具是指利用其本身特定密闭腔体去成型具有一定形状和尺寸的立体形状塑料制品的工具。随着塑料工业的发展和进步，人们对注射制件的要求越来越高。如何缩短成型周期、降低生产成本、提高制件精度、使用范围和标准化程度，一直是塑料行业孜孜以求的目标。近20年来注射成型工艺及模具新技术发展很快，新工艺和新结构层出不穷。
本设计首先参照已有的空心球柄，加入自己的独特元素，结合人机工程、制造工艺学和实用性，设计出本模具的塑件——空心球柄，更具典型性，有侧孔，镶字等特征。本文对该模具设计过程进行了详细的阐述，包括分型面设计，成型零部件设计，热流道系统设计，标准模架的选取，推出机构的设计，侧抽芯机构的设计，冷却系统和排气系统的设计，以及注塑机的选择与校核。
与本文配套的还有模具的二维总装配图，一些重要零部件的二维工程图，以及由Inventor绘制的全部模具零部件的三维模型及模具三维装配图，以便动态模拟模具的实际装配过程和实际的工作的过程，进行装配过程仿真和工作过程仿真，为模具的改进提供有力依据。
关键词：塑料模 型腔 精度 分型面 温度
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Abstarct
Plastic mold is the three-dimensional shape of plastic tools which has a certain shape and size by using its own specific confined to molding cavity. With the development and progress of the plastics industry, the demand of the injection workpiece is gradually increasing. It has been pursed by the plastics industry that how to make the molding cycles short, reduce production costs and increase accuracy, range and level of standardization. New technologies and structures have been emerging with the quick development of the injection molding and the new mode technologies in the past 20 years.
The design of plastic parts of the mold called hollow handle is more typical and with the features of side holes, words inserted and so on, with the first light of the existing hollow handle, and then adding own unique elements, combining with the man-machine engineering, manufacturing technology and practical. This design process in this paper is detailed, including the design of parting surface , molding parts , hot runner system ,the selection of standard mold , the design of launching institutions, core mechanism , cooling systems and scheduling Gas system and the choosing and checking of the injection molding machine.
This article is also supported by the two-dimensional of assembly drawing mold and some important parts of the engineering drawing and the three-dimensional model of assembly diagram and mold parts drawn by the Inventor of all mold, in order to make the process in dynamic simulation of the actual assembly and the actual work convenient and true and provide a strong basis for improving the mold.
Key words: plastic model sub-cavity precision surface temperature
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目 录
摘要 .................................................................................................................................................... I Abstract ............................................................................................................................................ II 绪论 ................................................................................................................................................... 1 1 空心球柄制件分析 .................................................................................................................... 4 1.1 空心球柄外表造型 ................................................................................................................. 4 1.2 塑件材料的选择 ..................................................................................................................... 5 1.3 塑件结构的工艺性 ................................................................................................................. 6 2 注射机选用与校核 .................................................................................................................... 7 2.1 注射机初步选择 ..................................................................................................................... 7 2.1.1 注射机的典型结构与分类 .................................................................................................. 7 2.1.2 注射成型工艺 ...................................................................................................................... 7 2.1.3 注射机与模具的关系 .......................................................................................................... 8 2.2 注射机的选取与校核 ............................................................................................................. 8 3 模具设计 ................................................................................................................................... 10 3.1 成型零部件设计 ................................................................................................................... 10 3.1.1 分型面设计 ......................................................................................................................... 10 3.1.2 型腔总体布局 .................................................................................................................... 11 3.1.3 成型零部件结构设计 ........................................................................................................ 11 3.1.4 成型零部件相关计算 ........................................................................................................ 12 3.2 浇注系统设计 ........................................................................................................................ 16 3.3 结构零部件设计 ................................................................................................................... 16 3.3.1 标准模架的选取 ................................................................................................................ 16 3.3.2 结构零部件的材质和配合设计 ....................................................................................... 16 3.4 推出机构设计 ........................................................................................................................ 17
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