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空调蜗轮塑料模设计【8张CAD图纸+WORD毕业论文】【注塑模具类】

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空调蜗轮塑料模设计【CAD图纸+WORD毕业论文】【注塑模具类】.rar

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关键词：: 空调蜗轮塑料模设计 cad 图纸 word 毕业论文注塑模具

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摘要

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。本模具采用一模两件，侧浇口进料，注射机采用海天160XB型号，设置冷却系统，CAD和UG绘制二维总装图和零件图，选择模具合理的加工方法。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：机械设计；模具设计；CAD绘制二维图；UG绘制3D图，注射机的选择

English the mold

不知是否需要，暂时没有翻译英文

摘要I

第1章绪论3

1.1塑料简介3

1.2注塑成型及注塑模3

第2章塑料材料分析5

2．1 塑料材料的基本特性5

2．2 塑件材料成型性能5

2．3 塑件材料主要用途5

第3章塑件的工艺分析7

3．1 塑件的结构设计7

3．2 塑件尺寸及精度8

3．3 塑件表面粗糙度9

3．4 塑件的体积和质量9

第4章注射成型工艺方案及模具结构的分析和确定10

4．1、注射成型工艺过程分析[5]10

4．2 浇口种类的确定10

4．3 型腔数目的确定11

4．4 注射机的选择和校核11

4.4.1 注射量的校核11

4.4.2 塑件在分型面上的投影面积与锁模力的校核12

4．4．3、模具与注射机安装模具部分相关尺寸校核12

第5章注射模具结构设计14

5．1 分型面的设计14

5．2 型腔的布局14

5．3 浇注系统的设计15

5．3．1 浇注系统组成15

5．3．2 确定浇注系统的原则15

5．3．3 主流道的设计15

5．3．4 分流道的设计17

5．3．5 浇口的设计17

5．3．6 冷料穴的设计17

5．4 注射模成型零部件的设计[7]18

5．4．1 成型零部件结构设计18

5．4．2 成型零部件工作尺寸的计算19

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21

5．7．1 温度调节对塑件质量的影响21

5．7．2 冷却系统之设计规则22

5．8 模架及标准件的选用22

5．8．1 模架的选用22

5．9 侧向抽芯机构类型选择…………………………………………………………………224

第6章模具材料的选用23

6．1 成型零件材料选用28

6．2 注射模用钢种28

总结29

致谢30

参考文献31

第1章绪论

模具制造是国家经济建设中的一项重要产业，振兴和发展我国的模具工业，日益受到人们的重视和关注。“模具是工业生产的基础工艺装备”也已经成为广大业内人士的共识。在电子、汽车、电机、电器、仪器、仪表、家电和通信等产品中，60%～80%的零部件都要依靠模具成形。用模具生产制件所具备的高精度、高复杂程度、高一致性、高生产率和低消耗，是其它加工制造方法所不能比拟的。模具又是“效益放大器”，用模具生产的最终产品的价值，往往是模具自身价值的几十倍、上百倍。模具工业是制造业中的一项基础产业，是技术成果转化的基础，同时本身又是高新技术产业的重要领域。

1.1 塑料简介

塑料是以树脂为主要成分的高分子材料，它在一定的温度和压力下具有流动性。可以被模塑成型为一定的几何形状和尺寸，并在成型固化后保持其既得形状而不发生变化。塑料有很多优异性能，广泛应用于现代工业和日常生活，它具有密度小，质量轻，比强度高，绝缘性能好，介电损耗低，化学稳定性高，减摩耐磨性能好，减振隔音性能好等诸多优点。另外，许多塑料还具有防水、防潮、防透气、防辐射及耐瞬时烧蚀等特殊性能[1]。塑料以从代替部分金属、木材、皮革及无机材料发展成为各个部门不可缺少的一种化学材料，在国民经济中，塑料制作已成为各行各业不可缺少的重要材料之一。

1.2 注塑成型及注塑模

将塑料成型为制品的生产方法很多，最常用的有注射，挤出，压缩，压注，压延和吹塑等。其中，注射成型是塑料成型加工中最普遍采用的方法。除氟塑料外，几乎的有的热塑性塑料都可以采用此方法成型。它具有成型周期短，能一次成型外形复杂、尺寸精度较高、易于实现全自动化生产等一系列优点。因此广泛用于塑料制件的生产中，其产口占目前塑料制件生产的30%左右。但注射成型的设备价格及模具制造费用较高，不适合单件及批量较小的塑料件的生产。

要了解注射成型和注射模，首先得了解注射机的一些基本知识，注射机是注射成型的主要设备，依靠该设备将粒状塑料通过高压加热等工序进行注射。注射机为热塑性或热固性塑料注射成型所用的主要设备，按其外形可分为立式、卧式、直角式三种，由注射装置、锁模装置、脱模装置，模板机架系统等组成。

注射成型是根据金属压铸成型原理发展而来的，其基本原理是利用塑料的可挤压性和可模塑性。首先将松散的粒状或粉状成型物料从注射机的料斗送入高温的机筒内加热熔融塑化，使之成为粘流态熔体，然后在柱塞或螺杆的高压推动下，以很大的流速通过料筒前端的喷嘴注射进入温度较低的闭合模具中，经过一段保压冷却定型时间后，开启模具便可以从模腔中脱出具有一定形状和尺寸的塑料制品。

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内容简介：: The development trend of plastic products and plastic molds1.the plastic industrySince the reform and opening up, the plastics processing industry in China quickly to an annual average of 10 per cent of the speed of development, compared with the average GDP growth point to 3-5 percentage points higher. Now, the plastic products in China has to enter into the level of developed countries in the world, the annual output of plastic products ranked second in the world, and formed a complete industrial classification system.With the expanding applications of plastics, production of plastic products in the world in the next 10 years the rate of 3% per year increase in total capacity of plastic products in the world in 2010 will reach 1.86 million tons. Chinas growing demand for plastic products will continue to the production of plastic products in the annual rate of 10% of the increase, it is estimated that the total capacitance of plastic products in our country try to be close to 40 million tons in 2010.The key to the future development of Chinas plastics industry in the plastics industry, transportation and engineering, packaging, plastic products, construction plastics, agricultural plastic products and plastic water-saving products, such as.1.1 plastic products industry, transportation and engineeringEngineering plastics is in the plastics industrys fastest-growing category. With Chinas rapid economic development, its scope of application and the number is increasing. Within this range of products including plastic tic engineering industries in electronics, electrical equipment and information for traffic and transport, as well as plastic. In 2005, the total demand of engineering plastic products in China about 45,000 tons in 2010, demand for automotive plastics will reach 10,000 tons.1.2 of plastics for packagingThe plastic has excellent characteristics, packaging is the largest area, the plastic will be used in the field of packaging. Statistics show that the plastic in the packaging of each country is also 35%. In 2003, the plastics used in packaging in China output to 46,500 tons, accounting for 28.1% of the total plastic products, the output value reached 68 billion yuan, an increase of 14.2 percent compared with 2001. It is estimated that the packaging plastic products in China, average annual growth rate in 2010 is 12%.1.3 for the construction of plastic productsPlastic materials is the emerging fourth generation of new building materials, including plastic pipes, plastic doors and windows, building waterproofing materials, insulation materials, decorative materials, use in construction projects is very broad, municipal engineering, villages and construction of small towns andindustrial construction. Plastic building materials not only can replace traditional building materials such as wood, steel, etc., but there are also many advantages, such as energy and materials, protection of ecological environment, improve the living environment, improve building functionality and quality, reduce construction weight, ease of construction. The construction industry is a pillar industry of national economy, Chinas construction industry will have a greater development in the next 5-15 years.1.4 plastic products used in agriculture and plastic water-saving devicesResults as a widely used agricultural ground cover film and the rapid diffusion of the coating film, the high efficiency of agricultural water-saving irrigation projects, as well as the scale of the development of related industries such as fisheries, animal husbandry and forestry, agriculture has become the second largest plasticsconsumer field, is second only to the packaging industry. Agricultural plastics huge market potential for the development of the plastics industry to provide a broader space for development. Ground cover film in the countrys total area of 1.7 million in China, then add the ammonia film, silage film, forage membrane, membrane in the wound, the plastic planting seedling container, shade nets, fishing nets, the materials used in agricultural products to store and keep it fresh pesticide equipment, foam plastic board, agricultural plastic products, about 30,000 tons in the country. With the sustained and rapid development of Chinas socio-economic, freshwater resources, more and more the lack of plastic water-saving devices will have a huge space for development.1.5 of plastic products used in the goods and medicinesWith the continuous improvement of peoples living standards, the number of products in plastic products for everyday life will continue to increase, the products of daily use there is still a huge potential market. The technical content of medical plastic products in the plastics industry and the highest value-added products, and now is based on an average annual growth rate of 15%. The output value of medical plastic products in China, only 2% to 3% of the output value of the medical plastic products in the world account, the average per capita consumption is 5% less than in developed countries. Therefore, the market prospect is extremely broad in medical plastic products in China.2.the mold industryDue to strong market demand to attract mold industry in both prosperity and rapid development of a broad market, production and sales. In the past three years, the average annual growth rate of Chinas mold industry is 21%. The production value of more than 45 billion yuan in 2003, about equal to more than $ 500 million, accounting for a third in the world. Industry experts predict, plastic mold in China will continue in the next 10 years the average annual growth rate of more than 15 percent growth, or even longer. At the same time, the export of mold there are broad prospects for development.For the next period of time, the demand for molds in four professional: the automotive industry, appliance industry, electronics and communications industry and building materials industry. As for the automotive industry, vehicle production in China more than four million U.S. dollars, basic types of vehicles has reached more than 170 kinds of new types of vehicles and converted vehicles will be up to 430 kinds, about 80% of mold types of vehicles, to change the need replacement, a model of car will need tens of thousands of mold, worth 100 million yuan; mostly in the sector of household appliances, color TV, refrigerators, washing machines, air conditioners, microwave ovens, video recorders, video cameras, VCD and DVD, and other accessories made of plastic and rubber products the combination, so it need quite a lot of mold.The plastics processing industry and mold manufacturing industry as a sunrise industry, the processing and manufacturing technologies that will change each new day. With the continuous development and application of modified plastics, nanometer plastics and special engineering plastics, as well as the rapid development of IT, high-precision, high complexity, high uniformity and low consumption of high production, plastics processing industry and Mould Manufacturing the industry will become one of the industries most developing countries in the 21st century.3.plastic injection mold, push-back mechanismsThis utility model is a push-back mechanism of injection molds, including a retractor fixed on the front of the mold, and the second retractor fixed to the back of the mold and the positioning block fixed to the ejection system. Clamping conditions, the first retractor end through the back of the back of the mold before the mold and the ejection system, followed by backward extension. Second retractor end of mobile With the back of the mold, the other end of the free end is located on the positioning block. When the mold, first separated from the free end of the retractor and the second retractor free end of the contact and cooperation in the times before, the front and back mold combination, while promoting the second retractor rotating push the positioning block and the ejection system, so that they forward and backward, and then slide the block and back mold to move to the specified location. This utility can effectively avoid the damage caused by the sliding block and disruption of the thimble and mold in the mold of the impact.4.plastic moldThis utility model is related to a plastic mold. It includes the former auxiliary board and the back of the auxiliary plate is symmetrical each other. The former auxiliary board and the back of the auxiliary board connected together to form an auxiliary channel and pouring mouth. The auxiliary channel and the pouring port is interconnected. Sectional dimension of words, pouring mouth and the junction of the auxiliary channel is relatively large, and another cross-section is relatively small. Mouth curved into a sharp corner in the pouring end of this section is smaller and the final product connected to the inner surface.5.Chinas plastics machinery industryAfter 50 years of development, the history of Chinas plastics machinery industry go growth, from scratch, from small to large, from obscurity to world-famous. The injection molding machine plastic injection molding machinery industry in China products, the development of injection molding machine has been the worlds plastics machinery industry praised. At present, the development of injection molding machines in Chinas seven major bright spot.The output of the injection molding machine in the industry ranked first in three categories of plastic machinery, injection molding machines, extruders and blow molding machines, they accounted for more than 80% of the total output of plastic machinery, which, injection molding machine is also accounted for the three types of output of more than 50%.In 2006, the output of the injection molding machine ranked first in the world, 91,480 units of the World annual production of injection molding machines, injection molding machine production of 57,600 units in mainland China, this production accounted for 62.97% of the worlds annual production of injection molding machine, which, in Chinese Ningbos annual production of injection molding machine about 1/3 of the world, it is the worlds largest production base of the injection molding machine.It is one-third of the European total annual production of injection molding machine in the world, Japan is in second place.The injection molding machine in China has become the first export of machinery products. In 2006, Chinas exports of injection molding machin

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