机械5

摘要 塑料成型制品是以塑料为主要结构材料经成型加工获得的制品，又叫做塑料制件，简称塑件。塑料成型制品应用广泛，特别是在电子仪表、电器设备、通信工具等方面获得大量应用。如各种受力不大的壳体、支架、结构件、装饰件等；作为塑料制品的主要生产基础工艺装备的塑料模具，在国民经济占有重要的地位，模具技术也已成为衡量一个国家产品制造水平的重要标志。注射成型是塑料成型的一种重要方法，它主要适用于热塑性的成型可以一次成型形状复杂的精密塑件，本次设计就是将剃须刀壳罩作为设计模型，将注塑模具的相关知识作为依据，阐述塑料注塑模具的整体设计过程。 本文设计的内容就是剃须刀壳罩注塑模具，材料为PP，根据其结构形状特点以及通过对剃须刀壳罩成型工艺的正确分析，确定型腔的总体布局，选择分型面，确定脱模方式，设计浇注系统等；同时本文对注塑模具进行简要介绍，对注塑模具中的主要零件进行设计计算，在设计过程中着重考虑其生产实际中的经济性和合理性。 关键词：注塑模具；注射成型；分型面 Abstract Plastic moldi
ng products are plastic as the mai
n structural material. The processi
ng of products.Referred to as the plastic parts.plastic moldi
ng products arewidely used.Especially i
n the electro
nic i
nstrume
nt electrical equipme
nt,commu
nicatio
n tools,etc to obtai
n a large
number of applicatio
ns. such as all ki
nds of stress are shell ste
nts structure decoratio
n.Based process equipme
nt as the mai
n productio
n of plastic products of plastic mold.occupies a
n importa
nt positio
n i
n
natio
nal eco
nomy mould tech
nology has also become to measure a
natio
nal product ma
nufacture level of importa
nt symbol.I
njectio
n moldi
ng plastic moldi
ng is a
n importa
nt method.it is mai
nly suitable for thermoplastic moldi
ng.a
nd ca
n be a complicated shape of precisio
n plastic formi
ng parts is the adsl surface shell as a desig
n model.This paperwill be i
njectio
n mold related k
nowledge as the basis.the overall desig
n process of plastic i
njectio
n mould are expou
nded. Desig
n the co
nte
nt of this article is shell of plastic i
njectio
n mould,materials for PP.Accordi
ng to the shape of the structure characteristics a
nd through the a
nalysis of the right across the shell moldi
ng process,determi
ne the overall distributio
n of cavity choose the parti
ng surface determi
ne the demouldi
ngway.The desig
n of gati
ng system,etc. Keywords：Plastic mold；i
njectio
n moldi
ng；the parti
ng surface 目录 诚信申明I 摘要II PPtract III 第一章绪论2 1.1我国模具行业的发展方向和前景2 1.2注塑模具设计与制造技术3 1.3 UG模具设计的基本流程4 1.4课题意义5 第二章注塑件的设计6 2.1功能设计6 2.2材料选择6 2.3结构设计7 2.4塑件的尺寸精度及表面质量8 第三章塑件3D建模及注射成型工艺分析9 3.1塑件的3D模型9 3.2塑件的注射成型工艺性分析9 3.3注塑机15 第四章模具结构设计16 4.1型腔数目的确定16 4.2分型面的确定17 4.3浇口的确定17 4.4模具材料的确定17 4.5浇注系统的设计18 4.6成型零件结构设计20 4.7抽芯结构设计21 4.8模架的选用22 4.9导向机构的设计23 4.10顶出机构的设计24 4.11排气设计24 4.12温度调节系统设计25 第五章注射机的校核26 5.1最大注塑量的校核26 5.2锁模力的校核26 5.3模具外形尺寸校核26 5.4模具厚度校核27 5.5模具安装尺寸校核27 5.6开模行程校核27 第六章模具总装设计28 6.1模具装配及加工要求28 6.2模具工作原理30 结论33 参考文献36 致谢35