下载文档原格式
卡盖塑料模具设计本设计是为了指导实际生产过程出现的生产问题而设计的吸尘器卡盖塑料模具，本设计共分为九章，在文字表述上既注意各部分内容的层次分明，又注意各部分内容之间的融会贯通。
在语言表达上表达言简意赅，简单明了，深入浅出，详细的表述了设计者的设计意图。
且本设计完全按生产过程从塑件的设计，注塑成型准备到冷却系统设计，使其在生产过程中具有很强的实用性。
在这个设计中特别应用了斜顶机构，相对于斜导柱滑块机构其生产工艺简单, 装配容易兼顶出机构，节省顶杆数目，使塑件外表更加美观，生产过程中结构稳定，准确性好，零件更换方便，节约成本，这是本设计的一大亮点。
在这次设计中，我熟练的掌握了机械制图、机械设计、机械原理等专业基础课和专业课方面的知识，对机械制造、加工工艺有了一个系统全面的了解，达到了学习目的。
对于模具设计这个实战性非常强的设计课题，我们进行了大量的实习。
我对于模具特别是塑料模具的设计步骤有了一个全新的认识，丰富了各种模具的结构和动作过程方面的知识，而对于模具的制造工艺更是实现了零的突破。
在指导老师的协助下和在工人师傅的讲解下，同时在现场查阅了相关的资料并亲手拆装了一些典型模具实体，明确了模具工作原理、制造、加工工艺，并在图书馆借阅了许多相关手册和书籍，在设计中，将充分利用和查阅各种资料，并与同学进行充分讨论，进最大努力做好这次毕业设计。
在设计过程中将有许多困难，但有指导老师的悉心指导和自己的努力，相信会圆满的完成这次毕业设计任务。
由于学生水平有限，而且缺乏经验，难免会出现错误和设计不妥之处，恳请各位老师指正。
第一章注塑件的设计1.1结构的设计1.1.1壁厚根据塑件的使用性能要求应有足够的壁厚，保证塑件的强度和刚度，但从塑件成型的角度来看，塑件过厚，使其收缩率加大，增加了尺寸的不稳定性，同时延长了塑件的冷却时间，是成型周期长而影响注塑效率，并造成材料的浪费，提高生产成本；而塑件过薄，贝U 是塑件的强度和刚度下降，影响使用寿命，同时使塑件成型是物料的流动阻力增大，影响成型效果，而且过薄的塑件，也给塑件的脱模带来了困难。
目录第一章前言·······························································- 1 - 第二章概述·······························································- 2 -2.1、塑料工业的简介 ·························································· - 2 -2.1.1 塑料工业是制造合成树塑料材料的基本特性················ - 2 -2.1.2 塑件材料成型性能 ················································ - 2 -2.1.3 特点 ···································································· - 2 -2.1.4 塑件材料主要用途 ················································ - 3 -2.1.5工业现状······························································· - 3 -2.1.6 发展趋势 ······························································ - 4 -2.1.7我国塑料模具工业的发展现状···································· - 4 -2.1.8 塑料成型加工方法 ·················································· - 4 - 第三章注射成型工艺方案及模具结构的分析和确定 ·····················- 5 -3.1 注射成型工艺过程分析··················································· - 5 -3.2 浇口种类的确定···························································· - 6 -3.3 型腔数目的确定···························································· - 6 -3.4型腔的布置 ·································································· - 6 -3.5分型面的设计 ······························································· - 7 -3.5.1分型面的设计原则··················································· - 7 -3.5.2对分型面类型的选择················································ - 7 -3.6结构的分析 ·································································· - 8 -3.6.1塑件分析······························································· - 8 -3.6.2对制品的分析主要包括以下几点：······························ - 8 -3.6.3塑件模型······························································· - 8 -3.7 塑件的结构设计······································错误！未定义书签。
密封圈的塑料模具毕业设计一、选题背景和意义密封圈是一种常见的零件，在工业生产、汽车制造、仪器仪表等领域广泛使用。
它可以起到密封的作用，防止液体或气体的泄漏，保证设备的正常运行。
随着各个行业的发展，对密封圈的要求也越来越高，需要设计出更加精准、耐用的产品。
本文旨在设计一套适用于密封圈生产的塑料模具，提高生产效率和产品质量。
二、设计目标1.提高生产效率：通过优化模具结构和制造工艺，减少生产过程中的人工操作，提高生产效率。
2.提高产品质量：通过优化模具结构，使得密封圈的尺寸更加精准，表面更加光滑，提高产品质量。
3.降低生产成本：通过设计合理的模具结构，减少废品率，降低生产成本。
三、设计内容和方法1.设计合理的模具结构：根据不同尺寸和形状的密封圈，设计适用的模具结构，确保模具的刚性和稳定性。
2.选用适合的材料：选择具有高耐磨性和高强度的塑料材料作为模具材料，确保模具的长时间使用。
3.使用CAD软件进行三维建模：通过CAD软件对模具进行三维建模，确定模具的形状和尺寸。
4.使用CAM软件进行数控加工：通过CAM软件将三维模型转化为数控程序，进行数控加工，保证模具加工精度。
四、设计过程1.确定密封圈的尺寸和形状要求：通过调研和实验确定密封圈的尺寸和形状要求，包括内径、外径、厚度等。
2.设计模具结构：根据密封圈的尺寸和形状要求，设计模具的结构，包括模具座、上模具和下模具。
3.对模具进行三维建模：使用CAD软件对模具进行三维建模，包括模具的结构和细节部位。
4.模具加工和组装：使用数控加工设备对模具进行加工，保证模具的精度和光洁度。
然后进行模具的组装和调试。
5.模具试模和调整：使用模具进行密封圈的生产试模，调整模具的结构和工艺参数，确保模具的稳定性和生产效率。
五、预期成果和实施方案1.预期成果：设计出一套适用于密封圈生产的塑料模具，满足生产需求，提高生产效率和产品质量。
2.实施方案：（1）调研：了解密封圈市场需求和设计要求。
项目研究报告塑料底座盖注塑模设计项目方案报告目录前言 (I)摘要 (Ⅱ)第一章对塑料成型模具的认识 (1)1.1模具在加工工业中的地位 (1)1.2 模具的发展趋势 (1)1.3 设计在学习模具制造中的作用 (2)第二章原始资料分析 (3)2.1 塑件的工艺分析 (3)2.2 底座盖原料（PC）的成型特性与工艺参数 (3)2.3 塑件的结构工艺性 (4)2.4 注射机的选择 (5)第三章分型面及浇注系统的设计 (7)3.1 分型面的选择 (7)3.2 浇注系统的设计 (8)第四章模具设计方案论证 (14)4.1 型腔的布置…………………………………………………14.4.2 成型零件的结构确定 (14)4.3 导向定位机构设计 (14)4.4 推出机构的设计 (15)4.5 冷却系统设计 (15)4.6 模具加热系统的设计 (16)4.7 温度调节系统的设 (16)第五章主要零部件的设计计算 (18)5.1成型零件的成型尺寸 (18)5.2 模具型腔壁厚的确定 (19)5.3 推出机构的设计 (19)5.4 标准模架的确定 (19)第六章成型设备的校核计算 (21)6.1 锁模力的校核 (21)6.2 安装尺寸的校核 (21)6.3 推出机构的校核 (21)6.4 开模行程的校核 (21)第七章模具的装配 (22)7.1 模具的装配顺序 (22)7.2 模具的维护 (23)设计总结 (24)附录：成型零件图 (25)型芯三维视图 (30)装配图 (31)参考文献 (35)前言随着中国当前的经济形势的日趋好转，在“实现中华民族的伟大复兴”口号的倡引下，中国的制造业也日趋蓬勃发展；而模具技术已成为衡量一个国家制造业水平的重要标志之一，模具工业能促进工业产品生产的发展和质量提高，并能获得极大的经济效益，因而引起了各国的高度重视和赞赏。
在日本，模具被誉为“进入富裕的原动力”，德国则冠之为“金属加工业的帝王”，在罗马尼亚则更为直接：“模具就是黄金”。
固定器卡扣塑料模具设计摘要：本论文基于固定器卡扣进行注塑模具设计，结合塑料成型方法和各类应用软件，完成了整套塑料模具的设计，其设计的过程运用了Moldex3D软件进行模流分析，依次对塑件进行网格划分、最佳浇口分析、浇注系统建立以及冷却水道的确立，并对整个零件进行填充→冷却→翘曲分析，通过分析使得存在的问题提前暴露出来，针对存在的问题，通过对注塑成型参数和结构设计进行修改，建立最优成型方式和参数。
然后结合分析结果，进行模具成型零部件的设计，在CAD 中绘制出零件二维图，同时根据二维尺寸在Pro/E5.0 中建立三维模型并进行装配。
此论文充分运用了材料成型及控制工程相关专业知识和技能，完成了注塑模具的设计，达到了综合运用模具专业相关知识解决工程实际问题的目的。
关键词：模具设计；Pro/E 三维建模；CAD；Moldex3D；模流分析The Plastic Gear Injection Mold Design and Molding Process AnalysisAbstract: In this paper, the injection mold is designed based on the fastener. Combined with plastic molding methods and various application software, the whole set of plastic mold is designed. The design process uses Moldex3D software for mold flow analysis, The mesh division, the best gate analysis, the gating system establishment and the cooling channel establishment of the plastic parts are carried out in turn, and the filling → cooling →warpage analysis of the whole part is carried out. Through the analysis, the existing problems are exposed in advance. Aiming at the existing problems, the optimal molding method and parameters are established by modifying the injection molding parameters and structural design. Then, combined with the analysis results, the mold forming parts are designed, and the two-dimensional drawing of the parts is drawn in CAD. At the same time, according to the two-dimensional size, the three-dimensional model is established and assembled in Pro / e5.0. This paper makes full use of the relevant professional knowledge and skills of materialachieves the purpose of comprehensively using professional knowledge related to mold to solve practical engineering problems.Key words: Mold design; Pro / E 3D modeling; CAD; Moldex3D; Mold flow analysisii目录I序言塑料作为日常生活中的常见材料，它是世界近100 年来新发展起来的的新材料。
第一章塑件及材料的工艺性分析1．1 设计任务的原始依据本次设计是由指导老师以样件的形式为我们下达的设计任务，要求我们设计一套成型自选样件注射模具。
我所设计Y型密封圈样件的塑料制品图如图1-1所示。
该塑件的材料为TPU，塑件的使用精度为一般精度要求，塑件外表面光滑、无飞边毛刺及明显的熔接痕，侧面不允许有浇口痕迹。
塑件的强度和刚度要满足装配及其他方面的使用要求。
该塑件的生产属于较大批生产。
生产条件为卧式中小型注射机。
图1-1Y形密封圈塑料制品图1．2 塑件的工艺性分析1. 塑件的材料特性和成型性能分析塑件材料为TPU，查手册知TPU塑料的收缩率为1%。
热塑性聚氨酯弹性体，具有高张力、高拉力、强韧和耐老化，抗撕裂性的特性。
挤出级系列（硬度75A-64D）以表面光泽度分为光面及雾面两种，成形性良好，表面无麻点、应用于弹性肩带、各种线材、装饰材料、运动器材、服装辅料、密封材料等领域。
2. 材料的工艺性分析TPU塑料可以使用螺杆注射机。
一般使用螺杆注射机时得工艺条件如下：料筒温度后段130～180℃；中段，前段150～210℃；注射压力80～120Mpa；模具温度20～40℃；注射时间15～20s；保压时间15～20s；冷却时间20～40s。
成型TPU90塑料时，熔融粘度对温度依存性大。
温度过高则粘度降低，树脂一流动，容易产生溢料孔隙、凹凸收缩等不良现象；3. 浇口的选择TPU在浇口、方面没有特别的限制，用浇口粗、倾角大的模具在脱模时十分方便。
比通用树脂的大些。
但须注意采用点状空隙节流孔时孔直径要大于Φ0.7mm,否则树脂填充不好得不到好的制品。
4. 成型零件的结构设计为了方便加工和热处理，型芯、型腔均采用整体式结构。
1.3 型腔数目的确定根据塑件形状简单，但形状较大，生产批量较大及尺寸精度要求，应使用单型腔注射模具，故模具采用一模一腔。
按照塑料件图所示（小沟、槽等部位简化）近似计算：单件塑件体积为： VS≈14.539cm³查手册知塑料LDPE的密度为1.10～1.25g/cm³(取平均密度为1.175g/cm³) 由制品尺寸计算出单件塑件重量为ms=14.539 x 1.175 = 17g1.4 塑件推出方式确定的由于塑件形状为圆环形，由于是高端密封件所以使用推杆推出容易在塑件上留下推出痕迹，不宜采用；由于塑件柔软，单独使用推件板推出时容易使塑件变形。
贵州航天10模具第一组摘要塑料模具的设计在当今这个新型材料快速发展的时代越来越显得重要，模具的存在解决了很多成本和技术上的难题，它作为一个传统的而又在迅速发展和进化的行业装备，对设计和制造现代模具都提出了更大的要求与挑战。
在整个模具设计的过程中，一切设计标准都是围绕产品而展开，一切工作都应以能生产出合格产品为原则。
本副模具用来成型尼龙这种流动性非常好、黏度极小的塑料，这对模具的封胶位间隙的大小和模具制造精度要求提出了相当的要求，这是设计与制造时的难点之一。
在满足模具的工艺性的基础上，我从模具的经济性上也考虑过较多，比如前模走了水线，毋庸置疑，也比较简单就布置好了，没什么难度。
而后模要是还走水线的话，由于型芯割成了镶件，要从镶件中走水线的话，难度与成本就上去了，综合了各个方面的因素最后放弃了后模布置水线的想法，因为不走水线也可以满足生产要求，况且产品的批量并不很大，效率要求并不太严格。
总体来讲，整个设计过程是从产品出发，根据其工艺性，经济性等方面的分析应选择合适的模具结构，根据老师的要求我们采用“一模一腔”构造方法，同时据此要求并结合注射模具设计的相关知识用caxa 和Pro/E5.0进行了分型面的设计，进而掌握了分型面设计、Proe分模技术模具元件生成技术、Proe工程图关键词：塑料密封圈模具、尼龙1011、caxa知识的掌握、Pro/E设计目录摘要 (1)关键词 (1)目录 (2)1.任务书 (3)2塑件的工艺性分析 (4)2.1塑件的塑料选择及特性分析 (5)3．模具的排位设计 (6)3.1排位设计的基本原则.............................................‥ (6)3模仁的设计.........................................................‥ (6)3.1模仁的固定 (6)4.分型面的选择与设计.............................................‥ (7)5.成型零部件的设计………………………………………………‥86.塑件的公差与模具制造公差 (10)7.浇注系统的设计 (11)8.模具水线的设计 (15)9模架的选择 (16)10.脱模机构的设计 (17)11模架部分的加工 (20)12.会模与试模 (22)12.4常见试模问题原因分析及解决方法 (23)塑料模具毕业设计任务书课题名称：迷宫型密封圈注射模具设计1.材料：尼龙10112.批量：中批量3.未注公差等级MT44.未注表面粗糙度Ra3.25.成型设备： XS-ZY-125注射机塑件图：2塑件的工艺性分析如上图所示，塑件为一个普通的轴承外的防尘密封圈，其外观要求和尺寸精度要求并不是很高，模具设计时可以尽量兼顾一下模具的外协件和模具本身制造的成本，塑件重要尺寸有036.047-Φ、32..0035+Φ、28.0027+Φ、036.010-、34.008.4+、36..0043+Φ等，因为该塑件还得和其他塑件一起配合形成一个完整的装配体，因此其配合尺寸所涉及到的模具成型件精度是有要求的，在模具制造过程中要特别注重这一点。
本科毕业设计（论文）通过答辩摘要带密封环卡座的注射模设计，采用了经典的瓣合模结构。
由于塑件壁厚较薄，且需要对两侧的大型芯进行抽芯，故此设计中不需要着重考虑冷却系统的布置，这是本设计中的一大特色所在，希望通过本次设计能对实际生产中遇到类似的注射模设计提供一定的参考价值。
本次设计运用了现代模具设计中的一个常用软件－Pro/E，通过Pro/E中的制造模块进行分模，得出型芯与型腔，并可自动生成数控加工程序，从而实现型芯与型腔的无图化生产，基本达到了现代模具设计的要求。
关键词：注射模型芯型腔现代模具设计i本科毕业设计（论文）通过答辩ABSTRACTPetal mold module is used in the deck with seal ring injection mold design. As the wall thickness of the part is small and there are two big side cores in core pulling, the cooling system should not be considered carefully, This is the unique feature of the design. This design is expected to provide some reference value for similar injection mold design in actual production progress. A frequently—used software in mold design—Pro/E is used in the design. The geometric information of the mold core and mold cavity can be obtained by using manufacture module in Pro/E, than CNC program can be generated automatically. So mold core and mold cavity can be manufactured without engineering drawing and the design can achieve the basic requirement of the modern mold design.Keywords: injection mold mold core mold cavity modern mold designii本科毕业设计（论文）通过答辩目录第一章绪论 ················································································································ - 1 -第二章塑件成型工艺分析······················································································· - 2 -2.1 塑件的分析············································································································· - 2 -2.2 塑件的结构及成型工艺性分析············································································· - 2 -2.2.1 结构分析····································································································· - 2 -2.2.2 成型工艺性分析························································································· - 2 -2.3HIPS的性能分析 ································································································· - 3 -2.3.1 什么是HIPS ······························································································· - 3 -2.3.2 HIPS的主要性能特点 ··············································································· - 3 -2.3.3 HIPS的成型工艺性能 ··············································································· - 4 -第三章选择注射机及相关参数的校核 ······························································· - 5 -3.1概述······················································································································· - 5 -3.2型腔数量及排列方式选择··················································································· - 5 -3.2.1 分型面位置的确定······················································································· - 5 -3.2.2 型强数量和排位方式的确定······································································· - 5 -3.3注射机选择··········································································································· - 6 -3.3.1注射量计····································································································· - 6 -3.3.2选择注射机································································································· - 7 -3.3.3注射机相关参数的校核············································································· - 8 -第四章浇注系统设计 ································································································ - 9 -4.1浇注系统设计······································································································· - 9 -4.1.1主流道的设计····························································································· - 9 -4.1.2分流道的设计····························································································- 11 -4.1.3冷料穴的设计··························································································· - 12 -4.1.4浇口设计··································································································· - 13 -4.2浇注系统凝料体积计算····················································································· - 14 -4.3浇注系统各截面流过熔体的体积计算····························································· - 15 -4.4剪切速率的校核································································································· - 15 -4.4.1确定适当的剪切速率 ············································································ - 15 -4.4.2确定体积流率q························································································ - 15 -iii本科毕业设计（论文）通过答辩4.4.3注射时间的计算······················································································· - 16 -4.4.4校核各处剪切速率··················································································· - 16 -第五章模具成型零部件设计·············································································· - 18 -5.1成型零件的工作尺寸计算················································································· - 18 -5.2成型零件尺寸及动模垫板厚度的计算····························································· - 20 -5.3 成型零件的创建································································································· - 21 -5.4成型零件的结构设计························································································· - 24 -第六章模架的确定和标准件的选用·································································· - 25 -第七章合模导向机构的设计················································································ - 27 -第八章脱模推出机构的设计················································································ - 28 -第九章侧向分型与抽芯机构的设······································································· - 31 -9.1侧向分型与抽芯机构类型的确定····································································· - 31 -9.2斜导柱抽芯机构的设计····················································································· - 31 -第十章排气系统的设计 ························································································· - 35 -第十一章温度调节系统的设计 ······························································- 36 -第十二章注射机安装尺寸的校核 ··························································- 39 -12.1最大与最小模具厚度的校核··········································································· - 39 -12.2开模行程校核··································································································· - 39 -12.3模架尺寸与注射机拉杆内间距校核······························································· - 39 -第十三章成型零件的制造工艺 ······························································- 40 -13.1 定模型芯的制造工艺过程··············································································· - 40 -第十四章模具工作过程··········································································- 42 -第十五章结论························································································- 43 -参考文献 ·····································································································- 44 -致谢 ·············································································································- 45 -iv。
