中号钳柄注塑模具的设计(含CAD零件装配图)(任务书,设计说明书9700字,CAD图纸5张)
摘要
注塑模具是用来生产塑胶制品的工具；是用来赋予塑胶制品完整的结构的，也是用来赋予塑胶制品精确尺寸的工具。
注塑模具可分为两大类，一种是按成型特性区可分为热固性塑胶模具和热塑性塑胶模具，另外一种是按成型工艺区可分为吹塑模、传塑模、热成型模、铸塑模、注射模、热压模（压塑模）等，其中热压模以溢料方式又可以分为溢式、半溢式、不溢式三种类型，注射模以浇注系统又可以分为冷流道模和热流道模两种类型；以装卸方式可以分为移动式和固定式两种类型。
注塑模具是由两部分组成，分别是动模和定模。注射机的移动模板上安装动模，注射机的固定模板上安装定模。浇注系统和型腔是在注射成型的时候动模与定模闭合构成的，开模时动模和定模分开以便于取出塑料制品。
每个模具的基本结构都是一致的，但是根据塑料的品种和性能、塑料制品的形状及结构以及注射机的种类等不同还是有差别的。模具的构成是由浇注系统、调温系统、成型零件以及结构零件组成的。塑模中最复杂的，变化最大的，要求精度和光洁度最严格的是浇注系统和成型零件。因为他们是直接与塑料接触的，并随塑料和制品的变化而变化。
浇注系统是指塑料从注射机的射嘴进入型腔之前的流道部分，是由主流道、分流道、冷料穴和浇口组成的。成型零件是指组成制品形状的各种零件，是由动模、定模、型腔、型芯、成型杆和排气口等组成的。
本次毕业设计的课题为中号钳柄注塑模具的设计，通过对于塑料制品图的分析，了解塑件的形状大小、尺寸、公差和材料名称、设计基准、牌号、表面要求等要求。对注塑模具的6大基础部分：分型面的设计，浇注系统的设计，冷却系统的设计，排气系统的设计进行设计。正确制定注塑模具的加工工艺路线，合理的去选择各个模板的加工工艺。最后对模具的结构与注射成型机的匹配进行校核。并且绘制了一套模具的装配图以及零件图。
通过这次对钳柄注塑模具的设计过程，我掌握了更多的模具设计和制造过程，为我将来的发展打下了良好的基础。
关键词: 钳柄注塑模具； 注射成型； 模具设计
Abstract
Noting the Su molding tool is the tool used to produce a plastic product;It is also the tool of structure and accurate size that gives a plastic product integrity.
Note Su molding tool can is divided into 2 kinds: plastic molding tool of plastic hot solid molding tool and hot Su according to modeling characteristic area;Depending on to model craft area can is divided into to blow a Su mold, spread a Su mold, hot model a mold, the mold of Zhu Su, inject a mold, hot press mold(press a Su mold) etc., among them hot press mold by overflowing to anticipate again can is divided into an overflow type, half overflow type, not the overflow type is 3, inject the mold note by sprinkling system and can is divided into cold flow a mold and heat to flow a mold 2;Can is divided into ambulation type and fixed type 2 by packing to unload.
Note Su molding tool from move a mold and settle a mold what two parts constitute, move the mold gearing is in injecting the ambulation template of machine, settling the mold gearing is in injecting the fixed template of machine.Move while injecting to model mold with settle a mold to shut to match constitute to sprinkle to note system and type chamber, open the time of mold move a mold and settle the mold separate in order to take out a plastics product.
The structure of the molding tool although because of shape and structure of the species and function, plastics product of plastics and inject the category of machine etc. different but may have different variety, the basic structure is still consistent.Molding tool mainly from sprinkle to note system, adjust system and model spare parts and structure spare parts to constitute.Sprinkle to note system and model spare parts among them is with plastics directly get in touch with of part, and is the most complicated in the Su mold with the variety but variety of the plastics and the product, change the biggest, request to process the part of clean degree and tallest accuracy.
Sprinkle to note system to mean plastics from injects shooting of machine got into chamber of mouth before of flow a part, include essential way, reposition of redundant personnel way and cold etc. for anticipating cave and sprinkling a people among them.Model spare parts to mean to constitute various spare parts of product shape, include to move a mold and settle a mold, type chamber, type Xin, model pole and exhaust etc..
The topic that this graduation designs notes the design of Su molding tool for pliers handle and passes the analysis to the plastics product diagram, several shapes, size, business trip and material name of understand Su piece, design basis, card and surface to request etc. the technique request.Is reasonable design to note the 6 greatest foundations of Su molding tool part:The design of cent type noodles sprinkles the design of noting the system, the design of cooling system, exhaust the design of system.The exactitude establishment notes the processing of Su molding tool craft route, reasonable of choose processing of each template craft.Finally to the structure of the molding tool with inject to model matching of machine to carry on pit in the school.And drew a set of assemble diagram of molding tool and spare parts diagram.
The whole process passed to do a molding tool design and processed, I first step controled simple molding tool design and the process of manufacturing, lay good foundation for own development in the future.
Keyword: The pliers handle notes a Su molding tool; Inject to model; The molding tool designs
目 录
第一章绪论 1
第二章塑料材料分析 2
2.1 基本特性 2
2.2 主要用途 2
2.3 成型特性 2
第三章分析塑料制品的工艺性 4
3.1 塑料制品公差和表面质量粗糙度 4
3.2 塑件结构工艺性分析 4
3.2.1 塑件的几何结构主要包括 4
3.2.2 塑件在模具中成形结束时，可能会出现下列情况 4
3.2.3 脱模斜度 4
第四章注射机的选择 5
4.1 塑料制品基本参数的计算及注射机选用 5
4.1.1 制品体积 5
4.1.2注射机选择 5
4.2 浇口种类选择 6
4.2.1 浇口设计 6
4.2.2 浇口选择 6
4.2.3 浇口套设计 7
第五章浇注系统的确定 9
5.1 分型面的设计 9
5.2 型腔的数目和布局 10
5.2.1 确定型腔数目： 10
5.2.2 型腔的布局： 10
5.3 浇注系统的设计 10
5.3.1 主流道的设计 11
5.3.2 分流道的设计 12
5.3.3 冷料穴的设计 12
第六章注射模具结构设计 14
6.1 型芯尺寸及结构设计 14
6.1.1 型芯径向尺寸计算 15
6.2 型腔尺寸及结构设计 17
6.3 模具结构设计 21
6.3.1 型腔的设计 22
6.4 模套的设计 23
6.5 模具结构图 24
6.6 模具与成型机械关系的校核 25
6.6.1 制品体积 25
6.6.2 流道体积 25
6.7 注射机的校核 27
6.7.1 最大注射量的校核 27
6.7.2 注射压力的校核 27
6.7.3 锁模力校核 27
6.7.4 拉杆间距的校核 27
6.7.5 开模行程的校核 27
6.7.6 模具厚度的校核 28
6.8 推出机构 28
6.9 导向支承紧固复位机构 28
6.10 冷却系统 29
参考文献 30
致谢 31
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