注 塑 模 具 设 计 课
课程名称：盘子注塑模具设计
程 设计
目 录
摘要 ------------------------------------------------------------------------------------------------ 1 前言 ----------------------------------------------------------------------------------------------------------------- 1 1 工艺分析 ------------------------------------------------------------------------------------------------------- 2
1.1材料特性分析 --------------------------------------------------------------------------------------------- 2 1.2材料的参数 ------------------------------------------------------------------------------------------------ 2 1.3注射参数 --------------------------------------------------------------------------------------------------- 2 1.4塑件制作数据 --------------------------------------------------------------------------------------------- 3 1.4.1塑件的尺寸 ------------------------------------------------------------------------------------------ 3 1.4.2塑件尺寸公差标准 --------------------------------------------------------------------------------- 7 1.4.3塑件的表面质量 ------------------------------------------------------------------------------------ 7 1.5确定注射机 ------------------------------------------------------------------------------------------------ 8
2 模具结构设计 ----------------------------------------------------------------------------------------------- 10
2.1分型面选择 ----------------------------------------------------------------------------------------------- 10 2.2浇口设计 -------------------------------------------------------------------------------------------------- 11 2.3流道设计 -------------------------------------------------------------------------------------------------- 13 2.4浇口套设计 ----------------------------------------------------------------------------------------------- 13
3 排气系统和冷却系统设计 ----------------------------------------------------------------------------- 15
3.1排气系统设计 -------------------------------------------------------------------------------------------- 15 3.2冷却系统的设计 ----------------------------------------------------------------------------------------- 15
4 脱模结构 ------------------------------------------------------------------------------------------------------ 17
4.1脱模机构设计的总体原则 ---------------------------------------------------------------------------- 17
4.2推件力的计算 -------------------------------------------------------------------------------------------- 17 4.2.1脱模力 ----------------------------------------------------------------------------------------------- 17
5 底板设计 ---------------------------------------------------------------------------------------------------- 19
5.1凹模尺寸设计 -------------------------------------------------------------------------------------------- 19 5.1.1凹模的径向尺寸计算----------------------------------------------------------------------------- 19 5.1.2凸模的高度尺寸计算-------------------------------------------------19
5.2凸模尺寸设计 -------------------------------------------------------------------------------------------- 20 5.2.1凸模的径向尺寸计算----------------------------------------------------------------------------- 20 5.2.2凸模的高度尺寸计算----------------------------------------------------------------------------- 20
6 模架选择 ------------------------------------------------------------------------------------------------------ 22