本次设计的参考件是以液晶显示器为设计任务，此产品外形光滑简单，用Pro/E三维软件绘制产品。在绘制过程中要考虑到抜模斜度，方便顶出脱模。绘制完成后，根据需求排列出一模一腔计算出他的模架，然后确定它的分析面。分型面的选择也要考虑到脱模的方向和零件的外形，还要考虑到型芯型腔的机械加工方便性和顶出机构的受力均匀。根据产品的排列和原料的流动性收缩率选择进料口使其填面不缺料。冷却方法根据模具的设计产品的摆放来确定，一般采用环绕式的水管。推出机构通常采用圆顶针，这种推模方式会留有顶出痕迹，如不能有顶出痕迹可使用推板推出或者使用机型手取出，选用的方式根据产品的使用和外观要求而定。三维软件绘制完成后根据图形再使用CAD绘制二维装配图和零件图，这样绘制二维装配图时思路清晰不容易出错。在设计过程中需考虑到模具在机械加工方面的制造工艺，还有就是在制造完成后模具使用的安全设备维修的方便跟换宜受损部分的简便，这都是在设计过程不可缺少的。 关键词：注塑模具、Pro/E、机械、模具设计、CAD Abstract Today, with the developme
nt of scie
nce a
nd tech
nology, i
njectio
n mold plays a sig
nifica
nt role i
n the productio
n of machi
nery, equipme
nt a
nd supplies. Si
nce the creatio
n of the mould, the mould desig
n a
nd ma
nufacture have also made co
nti
nuous progress a
nd i
n
novatio
n. I
n the past, the assembly drawi
ngs were draw
n by ha
nd. Now, the adva
nced tech
nology o
nly
needs computer to draw the drawi
ngs,
not o
nly two-dime
nsio
nal assembly drawi
ngs but also three-dime
nsio
nal drawi
ngs. The refere
nce part of this desig
n is to take LCD as the desig
n task. This product is smooth a
nd simple i
n appeara
nce, a
nd is draw
n with Pro / E 3D software. I
n the process of drawi
ng, the a
ngle of mould should be take
n i
nto accou
nt to facilitate ejectio
n a
nd demouldi
ng. After drawi
ng, the first mock exam is arra
nged accordi
ng to the requireme
nt, a
nd the mould surface is calculated, a
nd the a
nalysis surface is determi
ned. The selectio
n of parti
ng surface should also take i
nto accou
nt the directio
n of demouldi
ng a
nd the shape of the parts, as well as the co
nve
nie
nce of machi
ni
ng the core cavity a
nd the u
niform force of the ejectio
n mecha
nism. Accordi
ng to the arra
ngeme
nt of products a
nd the flow shri
nkage of raw materials, the feedi
ng port is selected so that the filli
ng surface is free of material shortage. The cooli
ng method is determi
ned accordi
ng to the placeme
nt of the desig
ned products of the mold, ge
nerally usi
ng the surrou
ndi
ng water pipe. The ejector mecha
nism usually adopts a rou
nd top
needle, which will leave a ejectio
n trace. If there is
no ejectio
n trace, the ejector plate ca
n be used to push it out or the machi
ne ha
nd ca
n be used to take it out. The selectio
n method depe
nds o
n the use a
nd appeara
nce requireme
nts of the product. After three-dime
nsio
nal software drawi
ng is completed, two-dime
nsio
nal assembly drawi
ng a
nd part drawi
ng are draw
n by CAD accordi
ng to the drawi
ng, so that the thi
nki
ng of drawi
ng two-dime
nsio
nal assembly drawi
ng is clear a
nd
not easy to make mistakes. I
n the desig
n process, it is
necessary to take i
nto accou
nt the ma
nufacturi
ng process of the die i
n terms of machi
ni
ng, as well as the co
nve
nie
nce of mai
nte
na
nce a
nd replaceme
nt of the safety equipme
nt used i
n the die after the completio
n of ma
nufacturi
ng, which are i
ndispe
nsable i
n the desig
n process. Key words: i
njectio
n mold, Pro/E, machi
nery, mold desig
n, CAD 目录 摘要I Abstract II 第一章概述1 1.1模具的地位1 1.2模具的发展2 1.3注塑模具的重要性3 1.4课题需要解决的问题3 1.5设计思路4 第二章塑件工艺和材料分析5 2.1塑件结构分析5 2.2塑件的工艺分析5 2.3计算塑件的体积和质量6 2.4分型面的选择7 2.5塑料成型设备的选取8 第三章模具结构方案的确定10 3.1出模数量与型腔布局10 3.2型腔出模数量的校核10 3.3、浇注系统设计11 3.3.1浇注系统11 3.3.2主流道的设计11 3.3.3分流道的设计12 3.3.4浇口的设计13 3.4热流道13 3.4.1热流道热咀14 3.4.2热流道板14 3.4.3加热原件15 3.4.4温控器15 3.5排气机构的设计16 3.6脱模机构设计16 3.5.1脱模力的计算17 3.5.2推杆强度的校核18 3.6复位机构设计18 3.7模架系统设计18 第四章、成型零件结构设计20 4.1成型零件的设计20 4.2、型腔结构设计20 4.3、型芯结构设计20 4.4成型尺寸计算21 4.4.1型腔成型零件尺寸计算21 4.4.2型芯成型零件尺寸计算22 4.4.3型腔零件的强度刚度校核23 4.5成型零件钢材的选用23 第五章、模具冷却系统设计24 5.1、冷却系统概述24 5.2、冷却水道的计算24 5.2.1求塑料制品在固化时每小时释放的热量Q 24 5.2.2水的体积流量25 5.2.3求冷却水道直径d 25 第六章注塑机的选择与校核26 6.1注塑机的工作原理26 6.2注塑机注射容量的校核26 6.3校核压力26 6.4校核模具安装尺寸26 6.5校核移模行程27 6.6校核注塑机锁模力27 第七章MOLDFLOW注塑CAE模流分析28 7.1 MOLDFLOW模流分析概述28 7.2 MOLDFLOW模流分析操作过程。 28 7.4总体温度31 7.5注射位置处压力：XY图32 7.6锁模力XY图33 7.7压力34 7.8充填时间35 7.9流动前沿温度36 7.10气穴37 7.11熔接线38 7.12温度，零件39 7.13变形，所有因素：变形40 第八章、绘制模具总装图42 8.1、本模具总装图42 总结43 致谢44 参考文献45