机械5

摘要 现代社会，不管是国内还是国外，经济的发展都是相当的快，针对塑料模的设计，在实际的应用还有关于它的研究都是很广泛的，这篇不仅对产品的性能还有功能都非常了解，对于产品的工艺还有大小要求都是非常高的，关于这些在里面都进行了分析。 根据塑料制品的要求，了解塑件的用途，分析塑件的工艺性、尺寸精度等技术要求，选择塑件制件尺寸。本模具采用一模二件，侧浇口进料，注射机采用海天330XC型号，设置冷却系统，CAD绘制二维总装图和零件图，UG绘制3D模具图，选择模具合理的加工方法。对侧孔进行抽芯。在对模具进行设计的时候，主要设计的东西有，设计笔盖，确定笔盖的材质，确定注塑机的类型，设计分型面，设计型腔，设计浇筑系统，对型腔的大小进行计算，对型芯的大小进行计算，将图纸画出来等等。我们这篇在对塑料产品的外形，大小还有精确度分析之后，确定了注射加工的工艺，设计了抽芯装置。在分析的时候，着重关注了模具的整体受到的负荷，设计出模具的退出装置，合模装置，冷却系统还有排气系统，将一个总的装配图还有零部件的图纸画出来。在进行设计的时候，一定要确保模具的构造不能复杂，要合理，要紧凑，在进行工作的时候可靠性要高，在进行工作的时候可以全自动进行。附上说明书，系统地运用简要的文字，简明的示意图和和计算等分析塑件，从而作出合理的模具设计。 关键词：方形盒；模具设计；二维图；注射机选择：侧抽 Abstract I
n moder
n society,whether domestic or foreig
n, eco
nomic developme
nt are quite fast, for the desig
n of plastic mold, i
n practical applicatio
n a
nd o
n its research isverywidely, this thesis
not o
nly o
n product performa
nce a
nd fu
nctio
n arevery u
ndersta
ndi
ng, for products of art a
nd size requireme
nts arevery high, about these i
n the paper are a
nalyzed. Accordi
ng to the requireme
nts of plastic products, u
ndersta
nd the use of plastic parts, a
nalysis of plastic parts of the process, size accuracy a
nd other tech
nical requireme
nts, select the size of plastic parts. This mold adopts the mode of a seco
nd, the side gate feedi
ng, i
njectio
n machi
newith Haitia
n 330XC types, equippedwith a cooli
ng system, drawi
ng 2D assembly drawi
ng a
nd parts drawi
ng CAD, UG draw 3D map die, mold reaso
nable processi
ng method of choice. Core pulli
ng of side hole. I
n the mold desig
n, mai
n desig
n, desig
n of the pe
n cap, determi
ne the pe
n cover material, determi
ne the type of i
njectio
n moldi
ng machi
ne, desig
n surface, cavity desig
n, pouri
ng system desig
n, the size of the cavity is calculated, the size of the core type are calculated, the paper drawi
ngs a
nd so o
n. I
n this paper, after a
nalyzi
ng the shape, size a
nd precisio
n of the plastic product, the process of i
njectio
n moldi
ng is determi
ned, a
nd the core pulli
ng device is desig
ned. I
n a
nalysis a
nd focus o
n the subject to mold the overall load, desig
n mold exit device, clampi
ng device, cooli
ng system a
nd exhaust system, a total of assembly drawi
ng a
nd parts drawi
ng. I
n the desig
n of the time,we must e
nsure that the structure of the mold ca
n
not be complex, to be reaso
nable, to be compact, i
n thework of high reliability,whe
n thework ca
n be carried out automatically. Attach the i
nstructio
n ma
nual, the system uses the briefwriti
ng, the co
ncise sketch map a
nd the computatio
n a
nd so o
n a
nalysis plastic parts, thus makes the reaso
nable mold desig
n. Keywords: square box; die desig
n; 2D drawi
ng; i
njectio
n machi
ne selectio
n: side pumpi
ng 目录 摘要I Abstract III 第1章绪论1 1.1塑料简介1 1.2注塑成型及注塑模1 第2章塑料材料分析3 2．1塑料材料的基本特性3 2．2塑件材料成型性能3 2．3塑件材料主要用途3 第3章塑件的工艺分析3 3．1塑件的结构设计4 3．2塑件尺寸及精度5 3．3塑件表面粗糙度6 3．4塑件的体积和质量6 第4章注射成型工艺方案及模具结构的分析和确定7 4．1、注射成型工艺过程分析[5] 7 4．2浇口种类的确定8 4．3型腔数目的确定8 4．4注射机的选择和校核8 4.4.1注射量的校核9 4.4.2塑件在分型面上的投影面积与锁模力的校核10 4．4．3、模具与注射机安装模具部分相关尺寸校核10 第5章注射模具结构设计12 5．1分型面的设计12 5．2型腔的布局12 5．3浇注系统的设计13 5．3．1浇注系统组成13 5．3．2确定浇注系统的原则13 5．3．3主流道的设计14 5．3．4分流道的设计15 5．3．5浇口的设计16 5．3．6冷料穴的设计17 5．4注射模成型零部件的设计[7] 17 5．4．1成型零部件结构设计17 5．4．2成型零部件工作尺寸的计算18 5．5排气结构设计19 5．6脱模机构的设计20 5．6．1脱模机构的选用原则20 5．6．2脱模机构类型的选择20 5．6．3推杆机构具体设计20 5．7注射模温度调节系统22 5．7．1温度调节对塑件质量的影响22 5．8．2冷却系统之设计规则23 5．9模架及标准件的选用24 5．9．1模架的选用24 第6章模具材料的选用26 6．1成型零件材料选用26 6．2注射模用钢种26 第7章总结28 附录30 致谢31 参考文献32