机械5

电风扇塑料叶片模具设计 摘要 本次设计的题目是基于UG电风扇塑料叶片模具设计，结合自己所学的知识，通过对UG环境的认识，然后对塑件成型工艺的详细分析，深度剖析电风扇塑料叶片的结构形式、在使用中的性能，甚至包括电风扇模具设计时精度的高低程度。在本设计中，通过对成型零部件，浇注系统和分型面的全面的设计，并且通过计算，确定了对电风扇塑料叶片的温度控制系统的设计，通过分析，然后根据自己所学的知识进行计算，最后确定塑料成型模具材料的选择，同时，也确定对注射机型号的选择。最后本设计用UG8.0创造具有三维实体的模型，并且用UG绘图版本测绘出电风扇叶片的二维工程图，通过这样一系列的分析计算，最后设计出电风扇塑料叶片的模具。并且生成工程图。通过这次设计，让我对模具有了更深层次的理解，并且更加坚信模具美好的未来。随着科学技术的发展，模具必将迎来更加广阔的天空。 关键词：UG；电风扇；注塑模具；浇注系统 ABSTRACT The topic of this desig
n is based o
n UG fa
n blade mould desig
n, combi
nedwith their lear
ned k
nowledge, through the u
ndersta
ndi
ng of the UG e
nviro
nme
nt, a
nd the
n detailed a
nalysis of the plastic moldi
ng process, depth a
nalysis of the structure of electric fa
n plastic blade, i
n the use of performa
nce, i
ncludi
ng electric fa
n mould desig
n of high a
nd low degree of precisio
n. I
n this desig
n, through to the moldi
ng parts, gati
ng system a
nd overall desig
n of the parti
ng surface, a
nd through calculatio
n, determi
ne the temperature co
ntrol system for electric fa
n plastic blade desig
n, through the a
nalysis, a
nd the
n calculated accordi
ng to their ow
n k
nowledge, a
nd fi
nally determi
ne the plastic moldi
ng mold material selectio
n, at the same time, also determi
ne the choice of i
njectio
n machi
ne
number. Fi
nally this desig
nwith UG8.0 create three-dime
nsio
nal e
ntity model, a
nd use UG graphicsversio
n 2 d e
ngi
neeri
ng drawi
ng of surveyi
ng a
nd mappi
ng out the electric fa
n blades, through this a series of a
nalysis a
nd calculatio
n, a
nd fi
nally desig
ned electric fa
n plastic mold of the blade. A
nd ge
nerate the e
ngi
neeri
ng drawi
ng. Through this desig
n, let I to the mold have a deeper u
ndersta
ndi
ng, I believe eve
n more stro
ngly a
nd mold the beautiful future. With the developme
nt of scie
nce a
nd tech
nology, mouldwill have a more broad sky. Keywords UG; Electric fa
n. I
njectio
n mould; Gati
ng system 目录 1注射模可行性分析1 1.1注射模设计的特点1 1.2注射模组成1 1.3塑料风叶设计与分析2 1.4注射性能分析3 1.5 UG中建立3D模型4 1.6塑料介绍5 1.7分析塑料材料6 2成型零部件设计7 2.1成型零件的结构设计7 2.1.1型芯设计7 2.1.2叶片成型设计7 3浇注系统的设计9 3.1浇口的设计9 3.1.1浇口的作用9 3.1.2浇口设计的基本要点9 3.1.3浇口的类型以及选择10 3.2流道的设计11 3.2.1主流道设计11 3.2.2分流道设计12 4机构设计14 4.1脱模导向机构设计14 4.2塑件脱模的机构设计15 5分型面的设计16 5.1选择分型面基本原则： 16 5.2风扇分型面的选择16 6冷却系统的设计17 6.1模具温度控制系统的意义17 6.2冷却的计算18 7选材20 7.1塑料成料的选择型模具材20 7.1.1常用的模具材料20 7.1.2选择的原则： 20 7.2电风扇叶片模具材料的选择21 8注射机型号的确定22 8.1注射机的选择22 8.2锁模力校核22 8.3注射容量校核23 9模具总体设计25 10在UG8.0中的模具CAD 26 10.1初始化项目26 10.2模具坐标系26 10.3设置收缩率26 10.4创建型腔布局26 10.5创建浇注系统26 10.6创建冷却系统26 11生成工程图27 11.1UG中生成工程图28 11.2AutoCAD中工程图的处理29 参考文献32 致谢32