机械5

卡勾塑料注塑模具设计 摘要 本设计的成品为一卡勾，在设计过程中按以下步骤设计模具：卡勾注塑模工艺规程的编制—注塑模的结构设计—模具设计的有关计算—模具加热与冷却系统设计—模具闭合高度的确定—注塑机有关参数的校核，最后是绘制模具总装配图。在注塑模工艺规程的编制的过程中，要着重分析制品原材料（ABS）的各项成型工艺参数；在模具结构设计中应注意的是斜顶杆起成型兼顶出的作用；模具设计计算的要点是型腔与型芯径向尺寸及深度方向尺寸的计算，型腔与型芯的计算在整个设计过程中显得尤为重要，因为它们直接关系到制品的尺寸精度；模具总装图和非标准零件图用AutoCAD画出，图中需标注的各项参数如尺寸，公差，技术要求，图纸布局等均应按国家标准设计。设计中出现的标准件如螺钉等的零件图无需一一画出，但应参照文献查出其具体结构尺寸。 关键词：卡勾，工艺规程，国家标准 Abstract The fi
nished product origi
nallydesig
ned is ca
ncelled for o
ne calorie,desig
n the mould accordi
ng to the followi
ng step i
n the course of desig
ni
ng: Card collude
note mould establishme
nt-structural desig
n-mold desig
n that
note mould,craft of rules about calculate-mould is it close sure
ness of heightwith cooli
ng system desig
n-mould to heat-The check about the parameter of the mouldi
ng plastics machi
ne,drawthe total i
nstallatio
n diagram of mould at the e
nd.While the
note moulds establishme
nt of the craft rules,should a
nalyse everyshapi
ng craft parameter of the products rawmaterials(ABS)emphatically; Fu
nctio
n that playshapi
ng a
nd co
ncurre
ntlycarries out that the o
nes that should
notice are a
n oblique ma
ndrel i
n the structural desig
n of the mould ; Mai
n poi
nt that mold desig
n calculate type a
nd type core foot-path calculatio
n of size toward size a
nd depth,the calculatio
n of the corewith the type of of the type seems particularlyimporta
nt i
n the course of desig
ni
ng e
ntirely,because theyco
ncer
n the precisio
n of size of the products directly; Mould assemblyis pursued to be draw
nwith the
no
n-sta
ndard part picturewith AutoCAD,everyparameter of
needi
ng to mark i
n the picture is like the size,public erra
nd,specificatio
n requireme
nt,the overall arra
ngeme
nt of the drawi
ng,etc.should be desig
ned accordi
ng to the
natio
nal sta
ndard.The sta
ndard compo
ne
nt appeari
ng i
n the desig
n does
not
need to drawo
ne byo
ne such as the part picture of screw,etc.,but should fi
nd its co
ncrete physical dime
nsio
n accordi
ng to docume
nts. Keyword: The card is ca
ncelled,craft rules,
natio
nal sta
ndard 目录 摘要1 Abstract 2 绪论5 第1章卡勾注塑模工艺规程的编制8 1.1、明确设计任务书和准备必要的技术资料8 1.2、塑件的工艺性分析8 1.2.1、塑件的原材料分析9 1.2.2、塑件的结构和尺寸精度及表面质量分析9 1.2.3计算塑件的体积和质量10 1.3、成型设备的选择11 1.3.1、注射量的校核11 1.3.2、注射压力校核及锁模力校核11 1.3.3、塑件注塑工艺参数的确定11 第2章注塑模的结构设计13 2.1、分型面选择13 2.2、型腔的排列方式14 2.3、浇注系统设计15 2.3.1、主流道设计15 2.3.2、分流道设计15 2.3.3、浇口设计16 2.3.4、冷料穴设计16 2.4、排气系统设计17 2.5、抽芯机构设计17 2.5.1、斜销抽芯机构17 2.5.2、斜顶杆顶出抽芯18 2.6、成型零件结构设计19 2.6.1、凹模的结构设计19 2.6.2、凸模的结构设计19 2.7、合模导向机构设计19 2.7.1、导柱设计19 2.7.2、导套设计20 2.8、脱模顶出机构设计20 2.9、其他机构零件设计21 2.9.1、停止销21 2.9.2、O型密封圈21 2.9.3、运输板22 2.9.4、模架22 第3章成型零件工作尺寸的计算23 3.1、型腔和型芯工作尺寸计算24 3.2、型芯侧壁厚度和底板厚度的计算26 第四章模具加热与冷却系统的计算28 第五章模具闭合高度的确定29 第六章注塑机有关参数的校核30 第七章绘制模具总装图和非标零件工作图31 结论32 致谢34 参考文献35