探头塑料模具设计说明书

机械工程学院材料成型及控制工程2012届塑料模具课程设计

湖南XX大学

课 程 设 计

资 料 袋

机械工程 学院（系、部） 2011～2012 学年 第 1 学期 课程名称 塑料成型工艺及模具 指导教师 职称 学生姓名 专业班级 学号

题 目 探头注塑成型工艺及模具设计 成 绩 起止日期2011年12月12日至2011年12月25日

目 录 清 单

序号 1 2 3 4 5 材 料 名 称 课程设计任务书 课程设计说明书 课程设计图纸 资料数量 1 1 4 备 注

路漫漫其修远兮，吾将上下而求索

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机械工程学院材料成型及控制工程2012届塑料模具课程设计

目 录

第1章 塑料制件成型工艺能分析·····································1 1.1.1塑件的尺寸精度················································1 1.1.2塑件的所用材料（PE）概况······································1 1.2性能分析························································2 第 2 章 塑件型腔数目及配置方式的确定································2 2.1 塑件型腔数目的确定··············································2 2.2 塑件型腔的配置方式··············································3 第 3 章 分型面的分析和设计··········································4 3.1分型面的选择原则················································4 3.2 分型面选择方案··················································5 第4章 浇注系统的设计及计算·········································6 4.1 主流道的设计····················································6 4.1.1 主流道尺寸····················································7 4.1.2 主流道衬套形式················································7 4.1.3主流道剪切速率校核············································8 4.2 分流道的设计····················································8 4.2.1分流道布置形式················································9 4.2.2分流道长度····················································9 4.2.3分流道的形状及截面尺寸········································9 4.2.4分流道凝料体积···············································10 4.2.5 分流道剪切速率校核 ··········································10 4.2.6分流道的表面粗糙度···········································11 4.3 浇口设计·······················································11 4.4 冷料穴的设计···················································12

路漫漫其修远兮，吾将上下而求索

2

机械工程学院材料成型及控制工程2012届塑料模具课程设计

4.5浇注系统的平衡·················································12 第 5章 脱模机构设计···············································错误！未定义书签。

5.1 脱模推出机构的设计原则········································错误！未定义书签。

5.2 塑件推出的基本方式············································13 5.3 塑件的推出机构················································13 5．3．1推出机构的复位·············································14 第6章 侧抽芯机构的设计···········································14 6.1 斜滑块的组合形式··············································14 6.2抽芯距的计算···················································14 6.3斜导柱斜角的确定···············································15 6.4 斜导柱侧抽芯机构···············································15 第七章 温度调节系统的设计·········································17 7.1 加热系统······················································17 7.2 冷却系统······················································17 7．2．1冷却介质···················································17 7．2．2冷却系统设计原则···········································17 7．2．3冷却水回路的布置···········································18 7．2．4 冷却系统的简约计算·········································19 7.2.4.1冷却水管的体积流量·········································19 7.2.4.2却水管的冷却时间···········································20 第8章 成型零件的设计及计算 ·······································20 8.1 成型零件的结构设计 ··········································20 8.1．1 成型零件的材料选择

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路漫漫其修远兮，吾将上下而求索 3

机械工程学院材料成型及控制工程2012届塑料模具课程设计

8.2 成型零件工作尺寸计算 ··········································20 8.2.1凹凸模构设计

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8.3成型零件的强度及支撑板厚度计算 ································22 8.4成型零件的钢材的选用 ··········································23 第 9章 模架和标准件的选用 ·······································23 9.1各模板尺寸的确定···············································23 第10章 导向机构的设计 ··········································24 10.1 导向结构的总体设计 ··········································24 10.2 导柱的设计 ·················································25 10.3导向孔

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10.4定位圈设计

第 11 章 排气槽的设计·············································28 第12章 模具总体结构··············································29 第 13 章 注射机的选择和有关参数的校核······························29 13.1所需注射量的计算 ··············································29 13.1.1 注射机选择标准

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13.1.2注射量的计算 ··············································30 13.2 塑件和流道凝料在分型面投影面积及所需锁模力的计算·································································31 13.3 注射机型号的选定··············································31 13.4 有关工艺参数的校核···········································31 设计总结···························································33 参考文献···························································34

路漫漫其修远兮，吾将上下而求索

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