I摘摘 要要本文首先分析塑料杯的结构设计、性能和工艺要求，确定塑件材料。然后对塑件结构进行工艺性分析，确定了分型面、浇注系统等，选取合适的注塑机型号，设计了 1 模 4 腔注射模。介绍该塑件的注射模具设计，重点介绍型芯、型腔等工作零部件的工作尺寸计算和结构设计，对浇注系统及拉料杆的设计也做了详细介绍，介绍了模具工作过程。在实际应用中模具动作平稳可靠，生产的塑件符合设计和使用要求。最后分析模具的工作原理，确定此设计结构的可靠性，并运用 AutoCAD 和PRO/E 绘制了一套模具装配图和部分零件图。关键词关键词：刷牙杯；注射模具；塑料成型IIAbstract This paper analyzes the structural design of plastic cups, performance and technical requirements, determine the material plastic parts, plastic parts of the structure analysis process to determine the sub-surface, casting system, select the appropriate injection machine designed for a 4 cavity mold injection mold. Introduce the design of injection mold plastic parts, focusing on core, cavity and other parts of the size of the work the work of calculation and structural design, gating system, casting systems, and pulling rod design has also done a detailed description of the die work process. In practice, the mold is smooth and reliable production of plastic parts meet the design and use requirements. Finally, the working principle of the mold to determine the reliability of this design structure, and the use of AutoCAD and PRO / E draw a part of the mold assembly and part drawings.Keyword: Toothbrush cup; injection mold; plastic moldingIII目录目录摘 要 .IAbstract .II第一章 绪 论.1 1.1引言.1 1.2塑料模具的现状及发展趋势.1 1.3本课题研究意义.2第二章 刷牙杯制件分析.4 2.1刷牙杯外形设计.4 2.2模具设计步骤和方案.5第三章 注射模具设计.6 3.1制件成型位置及分型面选择.6 3.2型腔布局的选择.7 3.3浇注系统的设计.7 3.4浇口的设计.9 3.5冷料穴设计.10 3.6型芯、型腔结构的确定.10 3.7拉料杆的结构分析.10 3.8脱模机构设计.11 3.9模具工作零件尺寸计算.14 3.10导向及定位机构.17 3.11排气及冷却.18第四章 模具动作过程说明.19 4.1模具装配图.19 4.2模具工作原理.19第五章 注射机选择及校核.21 5.1注塑机基本参数.21 5.2注塑机选定步骤.22 5.3注射机的校核.23第六章 总 结.