塑料螺栓的注塑模设计 DESIGN OF INJECTION MOID FOR PLASTIC BOIT 摘要 模具是大批量生产时用的设备，在使用模具后，可以反复生产形状、尺寸相同的零部件。模具利用材料塑性来进行加工的，减少了切削这一加工工序，因此用模具生产可以简化工序，成本低廉，进而提高了生产效率。本次设计的塑料螺栓绝缘性好，不导电，耐酸碱性能好，因此适用于医疗器械行业、电子行业、汽车行业、家用电器、航天航空行业、石油化工工业、通讯行业、船舶行业等。 在本次塑料螺栓的注塑模设计中，通过测绘塑件，使用Pro-e设计塑料螺栓三维图，使用CAD设计塑料螺栓注塑模具装配图、成型零件图。该设计中，完成塑料螺栓的工艺性分析，凸、凹模、冷却系统、注塑模结构、浇注系统、模具零件、排气系统、脱模机构等等，一系列的设计。所有的设计中，浇注系统和冷却系统的设计是注塑成型工艺中最重要的设计，浇注系统直接对塑件的成型质量，以及塑料螺栓的生产效率产生影响；而冷却系统中的温度的设计将决定塑料熔体的固化时间以及塑料螺栓的生产效率。通过本次的塑料螺栓注塑模设计，较为全面的了解当前国内外塑料模具的现状和发展前景，掌握了塑料注塑成型的过程，注塑模具的基本结构，塑料材料的工艺成型特性。经过一系列的设计，设计出成本低廉、质量优良、生产效率高的塑料螺栓。 关键词塑料螺栓；注射模；设计；ABS Abstract Mold is a mass productio
n equipme
nt, after the use of mold, ca
n repeatedly produce parts of the same shape a
nd size. Mold use throughout our daily life, as lo
ng as there are a large
number of repeated productio
n of the same products
need to use the mold. The mould is processed by material plasticity, which reduces the cutti
ng process. Therefore, the mould productio
n ca
n simplify the worki
ng procedure, reduce the cost a
nd improve the productio
n efficie
ncy. This desig
n of plastic bolt i
nsulatio
n,
no
n-co
nductive, good acid a
nd alkali resista
nce, so suitable for the medical equipme
nt i
ndustry, electro
nics i
ndustry, automotive i
ndustry, home applia
nces, aerospace i
ndustry, petrochemical i
ndustry, commu
nicatio
n Commu
nicatio
n i
ndustry, ship i
ndustry, etc. I
n the i
njectio
n mould desig
n of plastic bolt, through surveyi
ng a
nd mappi
ng plastic parts, usi
ng Pro-e to desig
n 3D drawi
ng of plastic bolt, usi
ng CAD to desig
n assembly drawi
ng of plastic bolt i
njectio
n mould, formi
ng part drawi
ng.I
n this desig
n, the process a
nalysis of plastic bolt, co
nvex, co
ncave die, cooli
ng system, i
njectio
n mould structure, pouri
ng system, die parts, exhaust system, demouldi
ng mecha
nism a
nd so o
n, a series of desig
ns are completed.I
n all the desig
n, the desig
n of pouri
ng system a
nd cooli
ng system is the most importa
nt desig
n i
n the i
njectio
n moldi
ng process, the casti
ng system directly affects the moldi
ng quality of plastic parts a
nd the productio
n efficie
ncy of plastic bolts.Through the desig
n of i
njectio
n mould for plastic bolt, the prese
nt situatio
n a
nd developme
nt prospect of plastic mold at home a
nd abroad are comprehe
nsively u
nderstood, the process of plastic i
njectio
n moldi
ng, the basic structure of i
njectio
n mould a
nd the tech
nological characteristics of plastic material are grasped. Through a series of desig
ns, the plastic bolts with low cost, good quality a
nd high productio
n efficie
ncy have bee
n desig
ned. Keywords plastic bolt i
njectio
n mold desig
n ABS 目录 摘要I Abstract II 1绪论1 1.1本课题的设计意义1 1.2塑料模具工业的现状和发展方向1 1.2.1现状1 1.2.2发展趋势1 2塑料螺栓的注塑模工艺设计4 2.1螺栓塑件的工艺分析4 2.1.1塑料材料的性能及基本成型工艺参数4 2.1.2塑料螺栓的选材5 2.1.3 ABS材料成型特性5 2.2注塑成型基本过程5 3注塑机的选择和校核7 3.1注塑机规格的选择7 3.2注塑机的校核8 3.2.1注塑机注射容量的校核8 3.2.2注射机注射压力的校核8 3.2.3注射机锁模力的校核9 3.2.4注射机模具厚度校核9 3.2.5注射机最大开模行程校核9 3.3确定型腔数目和分型面的选择10 3.3.1确定型腔数目10 3.3.2分型面的选择10 4浇注系统和冷却系统设计12 4.1浇注系统设计12 4.1.1主流道设计12 4.1.2分流道设计14 4.1.3浇口的设计14 4.1.4冷料穴和拉料杆的设计16 4.2排气系统的设计17 4.3温度调节系统的设计17 4.3.1温度的影响及设计要求17 4.3.2冷却系统的设计17 4.3.3设计冷却系统的必要性18 4.3.4冷却系统尺寸计算18 5其他零部件的设计20 5.1脱模机构的设计20 5.1.1脱模机构的分类20 5.1.2脱模机构设计原则20 5.2导向机构设计20 5.2.1导向机构设计原则21 5.2.2导柱外形尺寸计算21 5.2.3导向孔的设计22 5.2.4导柱的数量和布局22 5.3定位圈的设计22 5.3.1定位圈的数量和布局22 5.4注塑模具成型零件和模体的设计22 5.4.1模具型腔的结构设计22 5.4.2注射模具成型零件的尺寸确定23 5.5注射模具的侧抽芯机构设计25 5.51侧向分型与抽芯机构的分类25 5.5.2注塑模具的侧抽斜导柱抽芯机构设计24 5.6模架的选用26 5.6.1模架的基本类型26 5.7模具安装和调试27 5.7.1模具的安装27 5.7.2模具的调试27 结论28 致谢29 参考文献30