机械5

双柱座板注塑模具设计 摘要 在21世纪的生产业中，注塑模具占主导地位，注塑模具的产品随处可见经济实惠。本次设计以双柱座板为原件进行模具设计，首先确定塑料的分型面，分型面的选择要考虑脱模斜度和顶出受力面积。浇口位置要考虑到产品填充的流向均匀还有废料的放置位置。型腔数量的安排要合理采用镶嵌式还是整体式，结合模具的结构合理性要填充完全不得缺料。冷却系统要均匀，如果温差过大会影响零件外观出现裂痕变形和水印等。顶出机构也要受力均匀，如果脱模力受力不均匀过小会顶穿产品，顶出时面针板进行固定，底针板进行推出。工作时采用导柱导套进行导向，复位时利用弹簧进行复位复位杆进行导向。在设计完成后进行注塑机的校核，通过指导手册查询数据，选择注塑机的型号根据质料进行技算出注塑量，注塑压力、锁模力等。 本次设计采用CAD和UG软件进行绘制，绘制方法先测绘零件图通过UG建模画出三维，根据分型画出三维装配图，再根据三维图使用CAD画出二维装配图和非标零件图。利用辅助软件绘图减少了绘制时间，绘制的思路也清晰，软件的使用也更加的熟练了。本次采用的模架为龙记GB国标模架，此模架是大型企业模具专业设计的通用模架，此模架是全国公认的。 关键词：UG;注塑模具;模具设计;CAD Desig
n of i
njectio
n mold for double colum
n base plate Abstract I
n the 21st ce
ntury,i
njectio
n mold plays a leadi
ng role,a
nd the products of i
njectio
n mold ca
n be see
n everywhere.I
n this desig
n,the mold is desig
nedwith the double colum
n base plate as the origi
nal part.First,the parti
ng surface of the plastic is determi
ned.The selectio
n of the parti
ng surface should co
nsider the demouldi
ng slope a
nd the forced area of the ejectio
n.The gate locatio
n should take i
nto accou
nt the flowdirectio
n of product filli
ng a
nd the locatio
n ofwaste.The arra
ngeme
nt of the
number of cavities should be reaso
nable to use i
nlaytype or i
ntegral type,a
nd should be filled completelywithout lack of material i
n combi
natio
nwith the structural ratio
nalityof the mold.The cooli
ng system should be u
niform.If the temperature differe
nce is too large,itwill affect the appeara
nce of parts,such as cracks,deformatio
n a
ndwatermarks.The ejectio
n mecha
nism shall also bear u
niform force.If the force of the demouldi
ng force is
not u
niform a
nd too small,the productwill be pushed through.Whe
n ejectio
n,the face
needle plate shall be fixed a
nd the bottom
needle plate shall be pushed out.Guide post guide sleeve is used for guidi
ng duri
ng operatio
n,a
nd spri
ng is used for guidi
ng duri
ng reset.After the completio
n of the desig
n,check the i
njectio
n moldi
ng machi
ne,querythe data through the i
nstructio
n ma
nual,select the model of the i
njectio
n moldi
ng machi
ne,a
nd calculate the i
njectio
nvolume,i
njectio
n pressure,mold locki
ng force,etc.accordi
ng to the material tech
nology. I
n this desig
n,CAD a
nd UG software are used for drawi
ng.I
n the drawi
ng method,first,the part drawi
ng is draw
n i
n three dime
nsio
ns byUG modeli
ng,the
n the three-dime
nsio
nal assemblydrawi
ng is draw
n accordi
ng to the parti
ng,a
nd the
n the two-dime
nsio
nal assemblydrawi
ng a
nd
no
n-sta
ndard part drawi
ng are draw
n byCAD accordi
ng to the three-dime
nsio
nal drawi
ng.The use of auxiliarysoftware drawi
ng reduces drawi
ng time,drawi
ng ideas are clear,the use of software is more skilled.The mold base adopted this time is Lo
ngji GB
natio
nal sta
ndard mold base.This mold base is a ge
neral mold base desig
ned bythe mold specialtyof large e
nterprises.This mold base is recog
nized
natio
nwide. Keywords: UG,i
njectio
n mold,mold desig
n,CAD 目录 第一章前言1 1.1模具的简介1 1.2模具的发展趋势1 1.3模具的制造过程2 1.4 UG三维软件的概述3 1.5设计内容3 第一章塑件的制造工艺和材料分析4 2.1塑件的结构分析4 2.2ABS的特点4 2.3注射机确定5 第三章模具结构设计8 3.1分型设计8 3.2型腔的布局8 3.3模具浇注系统设计9 3.3.1主流道设计10 3.3.2分流道设计11 3.3.3浇口的设计12 3.4成型零件的设计13 3.5型芯的设计14 3.6模架设计16 3.7脱模机构设计17 3.8冷却系统19 3.8.1冷却系统设计规则19 3.8.2冷却系统的计算19 3.9排气结构设计21 3.10合模导向机构设计21 第四章注射机参数校核23 4.1注塑机锁模力的校核23 4.2校核压力23 4.3校核模具安装尺寸23 4.4校核移模行程24 4.5校核注塑机锁模力24 第五章模具总装图26 第六章MOLDFLOW注塑CAE模流分析27 6.1 MOLDFLOW模流分析概述27 6.2 MOLDFLOW模流分析操作过程。27 6.4总体温度31 6.5注射位置处压力：XY图31 6.6锁模力XY图32 6.7压力33 6.8充填时间33 6.9流动前沿温度34 6.10气穴35 6.11熔接线35 6.12温度，零件36 6.13变形，所有因素：变形37 总结38 致谢39 参考文献41