机械5

防护罩注射模具设计 摘要 随着生活水平的不断提高，如今塑料制品在人们的生活中已经扮演了不可替代的角色，防护罩就是其中之一，它可以保护各种精确机器，防尘、防沙等，保证机器的精确度，是应用生产中必不可少的塑件，它能够防止由于坚硬颗粒状的灰尘及切屑、坚硬物质等进入轨道，而使得滑动平面产生磨损，能够减少导轨因操作变形对加工精度的影响，保证机床加工精度。然而现实生活中的这种器械是虽广泛应用，缺仍然存在很大的劣势，例如，选材不够经济，造型不够美观，不够耐拉伸性等问题都是值得研究提升的地方。本文是在观察了实际生活情况之后，专门对防护罩塑料注射模具进行了研究设计，整个过程充分利用了计算机三维软件Solidworks和二维AutoCAD，结合浇注系统、抽芯机构、推出机构、成型零件、导向机构等方面的知识，综合塑料模具的应用范围，以及所用材料的选择等等，在研究的过程当中，通过查询大量的书籍资料，在XXX老师的指导下和整个小组一致团结合作之后，终于有所结论，详情参考以下具体内容。 关键词：模具设计，防护罩,塑料模具 RED SHIELD INJECTION MOLD DESIGN ABSTRACT As livi
ng sta
ndards improve, a
nd
now plastic products i
n people's lives has played a
n irreplaceable role, Hood is o
ne of them, it ca
n protect avariety of precisio
n machi
nery, dust, sa
nd, etc., e
nsure the accurate degrees, is the applicatio
n of esse
ntial productio
n of plastic parts,which ca
n preve
nt the dust a
nd chips hard particulate, hard material, etc. i
nto the track, a
nd so that the slidi
ngwear of pla
nes, ca
n reduce the rail by operati
ng o
n the processi
ng accuracy of deformatio
n, e
nsure machi
ni
ng accuracy. But i
n real life, although this i
nstrume
nt iswidely used, there are still missi
ng a great disadva
ntage, for example, the selectio
n is
not the eco
nomy,
not beautiful shape, e
nough te
nsile resista
nce a
nd other issues areworth co
nsideri
ng e
nha
nci
ng the place. This article is i
n the observatio
n of real life situatio
ns, the special protective cover o
n the red plastic i
njectio
n molds for the study desig
n, thewhole process takes adva
ntage of three-dime
nsio
nal computer software Solidworks a
nd two-dime
nsio
nal AutoCAD, combi
nedwith gati
ng system, core pulli
ng, pushi
ng mecha
nism, molded parts, guides a
nd other aspects of k
nowledge, i
ntegrated plastic mold ra
nge of applicatio
ns, aswell as the choice of materials used, etc., i
n the study of the process, a lot of books by queryi
ng the data, i
n Wu Zhua
nbi
n u
nder the guida
nce of the teacher a
nd thewhole team u
nity a
nd cooperatio
n agreeme
nt after fi
nally some co
nclusio
ns, details, refer to the followi
ng specific co
nte
nt. KEYWORDS: Mold Desig
n, Red Shield I
njectio
n, Plastic Mold 目录 摘要（中文） I 摘要（英文） II 1.绪论1 1.1前言1 1.2防护罩设计的必要性2 2.塑件的工艺分析3 2.1塑件的成型工艺性分析3 2.1.1塑件材料ABS的一般性能4 2.1.2塑件材料ABS的加工特性4 2.2塑件的成型工艺参数确定5 2.3塑件体积计算5 2.4成型设备的选择5 3.模具的基本结构与分类及模架选择8 3.1模具的基本结构与分类8 3.1.1成型方法确定8 3.1.2型腔布置方案8 3.1.3分型面的确定9 3.1.4选择浇注系统10 3.1.5确定脱模方式13 3.1.6侧向分型与抽芯机构15 4.选择模架16 4.1模架的结构16 4.2模架安装尺寸校核18 5.模具结构、尺寸的设计计算19 5.1模具结构设计计算19 5.1.1型腔结构19 5.1.2型芯结构19 5.1.3斜导柱、滑块结构19 5.1.4模具合模导向结构20 5.2模具成型尺寸设计计算20 5.2.1型芯径向尺寸20 5.2.2型芯高度尺寸20 5.2.3型腔径向尺寸21 5.2.4型腔深度尺寸21 5.3模具加热、冷却系统的计算22 5.3.1模具加热系统22 5.3.2模具冷却系统22 6.模具总装图以及模具的装配和试模24 6.1模具总装图24 6.2模具的安装试模与养护维修24 6.2.1试模前的准备25 6.2.2模具的安装和调试25 6.2.3试模过程26 6.2.4检验入库26 结论27 参考文献28 致谢29