风扇盖后盖注塑模具设计说明书

1、 本科毕业设计(论文) 题目：风扇盖后盖注塑模具设计 风扇盖2模具设计摘 要模具是工业生产中使用极为广泛的主要工艺装备，它是当代工业生产的重要手段和工艺发展方向，许多现代工业的发展和技术水平的提高，在很大程度上取决于模具工业的发展水平。本设计分析了塑件的结构，提出了模具设计的关键点，设计了模具的整体结构。根据塑件分型面的位置，设计了推件板和斜顶杆的推出结构，零件采用了双分型面的侧浇口，提高了零件的外面质量。通过对塑件进行工艺的分析及其结构分析，从产品结构工艺性，具体模具结构出发，对模具的浇注系统、模具成型部分的结构、顶出系统、注射机的选择及有关参数的校核都有详细的设计。该模具一模两腔，采用顶针

2、顶出结构。经过生产验证，该模具结构合理，动作可靠。关键词：塑料模具；注塑机；分型面 Die design of fan cover AbstractMold is widely used in industrial production the main technological equipment, It is an important means of modern industrial production and process development direction ,Many modern industrial development and the improvement

3、of the technical levels ,Largely depends on the development of die and mold industry level.This design on the analysis of the structure ，and puts forward the mold design key points，designed the overall structure of the mold. According to the plastic pieces of parting surface，designed the push plate

4、and the inclined plunger，the introduction of the structure，part uses the double parting surface point gate， improve the quality of the parts outside of the. Through to the plastic parts for process analysis and structure analysis，from the product structure craft，specific die structure，the mold of ga

5、ting system，molding part of the structure，the ejection system，selection of injection machine and related parameters of checking all have detailed design. The mold one module and four cavities，adopts the thimble ejection structure. Through production verification，the die structure is reasonable，reliable operation. Key Words： Plastic mold；Injiection machine；Parting surface主要符号表K 安全系数 E 材料弹性模量Smax 塑料的最大收缩率 Smin 塑料的最小收缩率 s 塑件公差 安全系数Qcp 塑料平均收缩率 S顶 顶出行程 Ds 塑件內形基本尺寸 倾斜角Hs 塑件內形深度基本尺寸 Q 抽拔阻力P1 动模受的总压力 P 斜导柱所受的弯曲力F