LED导光柱的注塑模具设计【含CAD图纸和说明书】
收藏
资源目录
压缩包内文档预览：
编号：166715840
类型：共享资源
大小：2.21MB
格式：ZIP
上传时间：2021-11-21
上传人：机****料
认证信息
个人认证
高**（实名认证）
河南
IP属地：河南
50
积分
- 关 键 词：
-
含CAD图纸和说明书
LED
光柱
注塑
模具设计
CAD
图纸
说明书
- 资源描述：
-
资源目录里展示的全都有预览可以查看的噢，，下载就有,,请放心下载，原稿可自行编辑修改=【QQ：11970985 可咨询交流】====================喜欢就充值下载吧。。。资源目录里展示的全都有，，下载后全都有,,请放心下载，原稿可自行编辑修改=【QQ：197216396 可咨询交流】====================
- 内容简介：
-
Chinas plastic mold industry and its development trendFirst: chinas plastic mold industryChinas industrial plastic moulds from the start to now, after more than half a century, there has been great development, mold levels have been greatly enhanced. Mould has been at large can produce 48-inch big-screen color TV Molded Case injection mold, 6.5 kg capacity washing machine full of plastic molds, as well as the overall car bumpers and dashboards, and other plastic mould precision plastic molds, the camera is capable of producing plastic mould , multi-cavity mold small modulus gear and molding mold. -Such as Tianjin and Yantai days Electrical Co., Ltd Polaris IK Co. manufactured multi-cavity mold VCD and DVD gear, the gear production of such size precision plastic parts, coaxial, beating requirements have reached a similar foreign the level of product, but also the application of the latest gear design software to correct contraction as a result of the molding profile error to the standard involute requirements. Production can only 0.08 mm thickness of a two-cavity mold and the air Cup difficulty of plastic doors and windows out of high modulus, and so on. Model cavity injection molding manufacturing accuracy of 0.02 to 0.05 mm, surface roughness Ra0.2 m, mold quality, and significantly increase life expectancy, non-hardening steel mould life up to 10 30 million, hardening steel form up to 50 10 million times, shorten the delivery time than before, but still higher than abroad.The present condition of the plastic mould level at home and abroad:The whole, China plastic mould whether in quantity, or in quality, technology and ability has made a great progress, but with the needs of the development of the national economy, the world advanced level, compared to a gap still. Some large, sophisticated, complex, the long life of high-grade plastic mould still need to import a lot of every year. In the total amount of demand exceeding supply at the same time, some cheap plastic mold but supply exceeds demand, market competition is intense, and some technical content is too high middle-grade plastic mould also has the trend of supply exceeds demandJoining the WTO, plastic mold and die industry to bring huge challenge, at the same time bring more opportunities. Because of Chinas cheap plastic mold to products, product price obvious advantages, some even only 1/5 of the price the foreign product one third to, to join the WTO, foreign similar products to domestic little impact, and cheap Chinese exports of mould is increase; In the high precision mould, before joining the WTO was mainly rely on imports, join WTO, not only for the exquisite products import has brought more convenient, but also lead to more foreign investment to China factory, bring foreign advanced mould technology and management experience, to cultivate Chinese professional mould talents to the role.In recent years, Chinese plastic mould manufacturing conditions have improved greatly. Large plastic mould has produced single set of weight can up to 50 tons of injection mold, precision plastic mould has reached the accuracy of 2 m, precision parts high small module gear mould and reach the requirements of the highlights learn lamp mould etc has also can produce, plastic mold cavity has been able to produce a mode of plastic mold cavity 7800, high-speed mold production speed can have up to 6 m/min above the high-speed plastic different profile extrusion die and the dual chamber co-extrusion profiles, double-color coextrusion, soft hard co-extrusion, were crowded, again of extrusion and low foaming raw steel-plastic co-extrusion, etc. Various kinds of mold. In the production means, mould enterprise equipment to numerical control rate has increased greatly, CAD/CAE/CAM technology has greatly expanded the applications, high speed processing and RP/RT adoption of advanced technologies such as has been more and more, standard mould using coverage and die commercialization rate is greatly improved, the share of mould of hot flow path are improved greatly. In addition, foreign invested enterprise vigorous development of further promoted the plastic mould design and manufacture level and improve the management level of enterprises, some enterprise already informatization management and digital no PIC manufacturing.As mould design and processing enterprises to raise the level of, mould manufacturing is from the past relies mainly on the transformation of the skills of fitter mainly rely on technology. This is not only the means of production change, and change the way of production and the rise of the concept. This is a trend that the standardization of mould continuous improvement, the precision of more and more high, production cycle is more and more short, fitter proportion more and more low, and finally promote the overall level of the die and mould industry is rising. China mold and die industry at present more than 10 national high and new technology enterprise, about 200 high technology and new technology enterprise. And adapt to the trend, the main production mold backbone strength from skill talented person gradually into technology talents is an inevitable requirement. Of course, now and for quite a long time, and highly talented person still very important, because after all, hard to get rid of mould to skill depend on.Existing main problemsChina plastic mould industry and foreign standards, mainly exist in the following questions.(1) the unbalanced development, product overall level is low. Although the individual enterprise products has reached or come close to the advanced international level, but overall, the accuracy, the roughness of the cavity surface, production cycle, life index and international advanced level there is a big gap between compared. Including production mode and the overall level of enterprise management, with foreign industrial developed countries there are compared for more than 10 years the gap.(2) process equipment backward, organization and coordination ability is poor. Though some of the technological transformation of the enterprise after in recent years, has been more advanced technology and equipment level, some of the foreign invested enterprise level of equipment is not behind abroad, but most of the enterprise process equipment is still lag behind. More importantly, the enterprise organization coordinated ability is poor, difficult to integrate or transfer of social resources use, thus it will be difficult to undertake larger projects.(3) most enterprise development ability is weak, the innovation ability is not enough. On the one hand, low level of technical personnel proportion is not quite high, on the other hand is the scientific development less input; More important concepts backward, insufficient attention to innovation and development. Mould enterprise not only to pay attention to the development of the mould, also want to pay attention to the innovation of the product.(4) short-term relief to the contradiction between supply and demand. In recent years, domestic plastics mould domestic market meet rate has been less than 74%, including a large, precision, long life mold meet more rate low, less than 60% estimate. Meanwhile, industrial developed countries are accelerating the mould transferring to China, international purchasing more and more, the international market has a good prospect. The market demand, production is difficult to keep up with development at that time, in short supply situation will continue for a period of time.There are many reasons which creates the above disparity ,the mold long-term has not obtained the value besides the history in as the product which should have, as well as the most state-owned enterprises mechanism cannot adapt the market economy, but also has the following several reasons: .(1) Country to mold industry policy support dynamics also insufficientlyAlthough the country already was clear about has promulgated the mold profession industrial policy, but necessary policy few, carried out dynamics to be weak. At present enjoyed the mold product increment duty enterprise nation 185, the majority enterprise still the tax burden is only overweight. The mold enterprise carries on the technological transformations introduction equipment to have to pay the considerable amount the tax money, affects the technology advancement, moreover privately operated enterprise loan extremely difficult .(2) Talented person serious insufficient, the scientific research development and the technical attack investment too urine Mold profession is the technology, the fund, the work crowded industry, along with the time progress and the technical development, grasps the talented person which and skilled utilizes the new technology exceptionally short, the high-quality mold fitter and the enterprise management talent extremely is also anxious. Because the mold enterprise benefit unsatisfactory and takes insufficiently the scientific research development and the technical attack, the scientific research unit and the universities, colleges and institutes eye stares at is creating income, causes the mold profession invests too few in the scientific research development and the technical attack aspect, causes the mold technological development step not to be big, progresses not quick .(3) The craft equipment level to be low, also necessary is not good, the use factor low recent years our country engine bed profession progressed quickly, has been able to provide the quite complete precision work equipment, but compared with the overseas equipment, still had a bigger disparity. Although the domestic many enterprises have introduced many overseas advanced equipment, but the overall equipment level low are very more than the overseas many enterprises. As a result of aspect the and so on system and fund reason, introduces the equipment not necessary, the equipment and the appendix not necessary phenomenon are extremely common, the equipment utilization rate low question cannot obtain the comparatively properly solution for a long time .(4) Specialization, standardization, commercialized degree low, the cooperation ability Because receives large and complete small and entire the influence since long ago, mold specialization level low, the specialized labor division is not careful, the commercialized degree is low. At present domestic every year produces mold, commodity mold minister 40% About, other for from produce uses for oneself. Between the mold enterprise cooperates impeded, completes the comparatively large-scale mold complete task with difficulty. Mold standardization level low, mold standard letter use cave rare is low also to the mold quality, the cost has a more tremendous influence, specially has very tremendous influence .(5) To the mold manufacture cycle) the mold material and the mold correlation technology falls The mold material performance, the quality and the variety question often can affect the mold quality, the life and the cost, the domestically produced molding tool steel and overseas imports the steel products to compare has a bigger disparity. Plastic, plate, equipment energy balance, also direct influence mold level enhancement .Process, the multi-material plastic molding die, efficient multicolor injection mould, inserts exchange structure and core pulling Stripping the innovative design has also made great progress. Gas-assisted injection molding, the use of more mature technologies, such as Qingdao Hisense Co., Ltd., Tianjin factory communications and broadcasting companies, such as mold manufacturers succeeded in 29 34-inch TV thick-walled shell, as well as some parts on the use of gas-assisted mould technology Some manufacturers also use the C-MOLD gas-assisted software and achieved better results. Prescott, such as Shanghai, such as the new company will provide users with gas-assisted molding equipment and technology. Began promoting hot runner mold, and some plants use rate of more than 20 percent, the general heat-thermal hot runner, or device, a small number of units with the worlds advanced level of rigorous hot runner-needle device, a small number of units with World advanced level of rigorous needle-hot runner mould. However, the use of hot runner overall rate of less than 10%, with overseas compared to 50 80%, the gap larger.In the manufacturing technology, CAD / CAM / CAE technology on the level of application of a new level to the enterprise for the production of household appliances representatives have introduced a considerable number of CAD / CAM systems, such as the United States EDS UG , the United States Parametric Technology Pro / Engineer, the United States CV CADS5 company, the British company DOCT5 Deltacam, HZSs CRADE Japan, the companys Cimatron Israel, the United States AC-C-Tech Mold Company and Australias MPA Mold flow Mold analysis software, and so on. These systems and the introduction of the software, although a lot of money spent, but in our country die industry, and achieving a CAD / CAM integration, and to support CAE technology to forming processes such as molding and cooling, such as computer simulation, and achieved certain The technical and economic benefits, promote and facilitate Chinas CAD / CAM technology. In recent years, Chinas own development of the plastic mould CAD / CAM system has achieved significant development, the main guarantor Software Engineering Institute, is the development of CAXA, Huazhong University of Science HSC5.0 development of the system and injection mold CAE software, and so on, these Die of domestic software with the specific circumstances in the application of computer and lower prices, and other characteristics, in order to further universal CAD / CAM technology has created good conditions.In recent years, China has been more extensive use of some new plastic mold steel, such as: P20, 3Cr2Mo, PMS, SM , SM , and the quality of life of mold has a direct significant impact on the overall use of the still less . Plastic Moulds standard model planes, such as standard putter and spring has given more applications, and there have been some of the commercialization of domestic hot runner system components. However, at present China Die level of standardization and commercialization in the general level of below 30 percent and foreign advanced industrial countries has reached 70 percent compared to 80 percent, still a large gap. Table 1, at home and abroad plastic mould technology comparison table? Domestic projects abroad cavity injection model mm0.02 accuracy of 0.005 0.01 0.05mm cavity surface roughness Ra0.01 0.05 mRa0.20 m non-hardened steel die life 10 to 60 million 10 30 million hardened steel die life 160 300 million of 50 100 million hot runner mould overall utilization rate of more than 80 per cent less than 10 per cent level of standardization of 70 80% less than 30% of medium-sized plastic mould production cycle about a month 2 4 months in the mold industry in the amount of 30 to 40% 25 to 30% According to the parties concerned forecast, the markets overall vigorous mold is a smooth upward, in the next Die market, the development of plastic mould faster than the other Die, die in the proportion of industry will gradually improve. With the continuous development of the plastics industry, put on the plastic mold growing demands is a normal, and so sophisticated, large-scale, complex, long-life plastic mould development will be higher than the overall pace of development. At the same time, imports in recent years because of the mold, precision, large, complex, long-life die in the majority, therefore, reduce imports, increase Guochanhualu: perspective, in the mold of such high-end market share will gradually increase. The rapid development of the construction industry so that the various Profile Extrusion Die, PVC plastic pipe fittings Die Die market become a new economic growth point, the rapid development of highways, car tires also put a higher demand, radial tire Die, Die particularly active pace of development will also be higher than the overall average level of the plastic and wood, plastic and metal to make plastic molds in the automotive, motorcycle industry in the demand for huge household appliances industry in the 10th Five-Year Plan period have greater development, especially refrigerators, air-conditioners and microwave ovens, and other parts of the great demand for plastic moulds, and electronics and communications products, in addition to audio-video products, such as color televisions, laptop computers and set-top boxes will be given a wider network development, which are Plastic Mold market is the growth point.Second:the direction of the future major developments of Chinas plastic mould industrial1: Rraising large, sophisticated, complex, long-life mold design and manufacturing standards and proportion. This is due to the molding plastic mould products increasingly large, complex and high-precision requirements, as well as requirements for high productivity and the development of a multi-mode due. 2: In the design and manufacture of plastic mould fully promote the use of CAD / CAM / CAE technology. CAD / CAM technology has developed into a relatively mature technology common in recent years CAD / CAM technology hardware and software prices has been reduced to SMEs generally acceptable level of popularity for further create good conditions; based on network CAD / CAM / CAE system integration structure the initial signs of emerging, and it will solve the traditional mixed CAD / CAM system can not meet the actual production process requirements of the division of collaboration; CAD / CAM software will gradually improve intelligence plastic parts and the 3-D mold design and prototyping process 3-D analysis will be inour plastic mouldindustries play an increasingly important role. 3: Promote the use of hot runner technology, gas-assisted injection molding technology and high-pressure injection molding technology. Using hot runner mould technology can improve the productivity and quality of parts and plastic parts can be substantial savings of raw materials and energy conservation, extensive application of this technology is a big plastic mould changes. Hot Runner components formulate national standards, and actively produce cheap high-quality components, the development of hot runner mold is the key. Gas-assisted injection molding product quality can be guaranteed under the premise of substantially lower cost. Currently in the automotive and appliance industries gradually promote the use of the Chiang Kai-shek. Gas-assisted injection molding of the ordinary than the traditional injection of more parameters need to identify and control, and its more commonly used in large, complex products, mold design and control more difficult, therefore, the development of gas-assisted molding flow analysis software It seems very important. On the other hand in order to ensure precision plastic parts to continue to study the development of technology and high-pressure injection molding and injection-compression molding mould and die technology is also very important.4: The development of new plastics molding technology and rapid economic mold. To adapt to more variety, less volume of production. 5: And improve standardization of plastic mould standard parts usage. Chinas mold and die level of standard parts standardization still low, the gap between the large and foreign, to a certain extent constraining the development of industries in our country die, die to improve quality and reduce manufacturing costs Die, Die standard parts to vigorously promote the application. To this end, first of all, to formulate a unified national standards, and in strict accordance with the standards of production, secondly it is necessary to gradually scale production, to improve the commercialization of the standard of quality, and reduce costs; again it is necessary to further increase the standard specifications of varieties. 6: Die application quality materials and advanced surface treatment technology for improving the quality of life and mold it is necessary.7: research and application of high-speed die measurement technology and reverse engineering. CMM-use 3D scanner or reverse engineering is the realization of plastic moulds CAD / CAM one of the key technologies. Research and Application of diversity, adjustment, cheap detection equipment is to achieve the necessary precondition for reverse engineering.我国塑料模具工业现状及发展趋势一、我国塑料模具工业现状我国塑料模工业从起步到现在，历经半个多世纪，有了很大发展，模具水平有了较大提高。在大型模具方面已能生产48英寸大屏幕彩电塑壳注射模具、6.5kg大容量洗衣机全套塑料模具以及汽车保险杠和整体仪表板等塑料模具;精密塑料模具方面，已能生产照相机塑料件模具、多型腔小模数齿轮模具及塑封模具。如天津津荣天和机电有限公司和烟台北极星I.K模具有限公司制造的多腔VCD和DVD齿轮模具，所生产的这类齿轮塑件的尺寸精度、同轴度、跳动等要求都达到了国外同类产品的水平，而且还采用最新的齿轮设计软件，纠正了由于成型收缩造成的齿形误差，达到了标准渐开线齿形要求。还能生产厚度仅为0.08mm的一模两腔的航空杯模具和难度较高的塑料门窗挤出模等等。注塑模型腔制造精度可达0.020.05mm，表面粗糙度Ra0.2m，模具质量、寿命明显提高了，非淬火钢模寿命可达1030万次，淬火钢模达501000万次，交货期较以前缩短，但和国外相比仍有较大差距。国内外塑料模具的现状及水平：整体来看，中国塑料模具无论是在数量上，还是在质量、技术和能力等方面都有了很大进步，但与国民经济发展的需求、世界先进水平相比，差距仍很大。一些大型、精密、复杂、长寿命的中高档塑料模具每年仍需大量进口。在总量供不应求的同时，一些低档塑料模具却供过于求，市场竞争激烈，还有一些技术含量不太高的中档塑料模具也有供过于求的趋势。加入WTO，给塑料模具产业带来了巨大的挑战，同时带来更多的机会。由于中国塑料模具以中低档产品为主，产品价格优势明显，有些甚至只有国外产品价格的1/51/3，加入WTO后，国外同类产品对国内冲击不大，而中国中低档模具的出口量则加大；在高精模具方面，加入WTO前本来就主要依靠进口，加入WTO后，不仅为高精尖产品的进口带来了更多的便利，同时还促使更多外资来中国建厂，带来国外先进的模具技术和管理经验，对培养中国的专业模具人才起到了推动作用。 近年来，中国塑料模具制造水平已有较大提高。大型塑料模具已能生产单套重量达到50t以上的注塑模，精密塑料模具的精度已达到2m，制件精度很高的小模数齿轮模具及达到高光学要求的车灯模具等也已能生产，多腔塑料模具已能生产一模7800腔的塑封模，高速模具方面已能生产挤出速度达6m/min以上的高速塑料异型材挤出模具及主型材双腔共挤、双色共挤、软硬共挤、后共挤、再生料共挤出和低发泡钢塑共挤等各种模具。在生产手段上，模具企业设备数控化率已有较大提高，CAD/CAE/CAM技术的应用面已大为扩展，高速加工及RP/RT等先进技术的采用已越来越多，模具标准件使用覆盖率及模具商品化率都有较大幅度的提高，热流道模具的比例也有较大提高。另外，三资企业的蓬勃发展进一步促进了塑料模具设计制造水平及企业管理水平的提高，有些企业已实现信息化管理和全数字化无图制造。随着模具企业设计和加工水平的提高，模具的制造正在从过去主要依靠钳工的技艺转变为主要依靠技术。这不仅是生产手段的转变，也是生产方式的转变和观念的上升。这一趋势使得模具的标准化程度不断提高，模具精度越来越高，生产周期越来越短，钳工比例越来越低，最终促进了模具工业整体水平不断提高。中国模具行业目前已有10多个国家级高新技术企业，约200个省市级高新技术企业。与此趋势相适应，生产模具的主要骨干力量从技艺型人才逐渐转变为技术型人才是必然要求。当然，目前及相当长一段时间内，技艺型人才仍十分重要，因为模具毕竟难以完全摆脱对技艺的依靠。存在的主要问题 中国塑料模具行业和国外先进水平相比，主要存在以下问题。 （1）发展不平衡，产品总体水平较低。虽然个别企业的产品已达到或接近国际先进水平，但总体来看，模具的精度、型腔表面的粗糙度、生产周期、寿命等指标与国外先进水平相比尚有较大差距。包括生产方式和企业管理在内的总体水平与国外工业发达国家相比尚有10年以上的差距。 （2）工艺装备落后，组织协调能力差。虽然部分企业经过近几年的技术改造，工艺装备水平已经比较先进，有些三资企业的装备水平也并不落后于国外，但大部分企业的工艺装备仍比较落后。更主要的是，企业组织协调能力差，难以整合或调动社会资源为我所用，从而就难以承接比较大的项目。（3）大多数企业开发能力弱，创新能力明显不足。一方面是技术人员比例低、水平不够高，另一方面是科研开发投入少；更重要的是观念落后，对创新和开发不够重视。模具企业不但要重视模具的开发，同时也要重视产品的创新。 （4）供需矛盾短期难以缓解。近几年，国产塑料模具国内市场满足率一直不足74%，其中大型、精密、长寿命模具满足率更低，估计不足60%。同时，工业发达国家的模具正在加速向中国转移，国际采购越来越多，国际市场前景看好。市场需求旺盛，生产发展一时还难以跟上，供不应求的局面还将持续一段时间。造成上述差距的原因很多，除了历史上模具作为产品长期未得到应有的重视，以及多数国有企业机制不能适应市场经济之外，还有下列几个原因： （1）国家对模具工业的政策支持力度还不够 虽然国家已经明确颁布了模具行业的产业政策，但配套政策少，执行力度弱。目前享受模具产品增值税的企业全国只有185家，大多数企业仍旧税负过重。模具企业进行技术改造引进设备要缴纳相当数量的税金，影响技术进步，而且民营企业贷款十分困难。 （2）人才严重不足，科研开发及技术攻关投入太少 模具行业是技术、资金、劳动密集的产业，随着时代的进步和技术的发展，掌握并且熟练运用新技术的人才异常短缺，高级模具钳工及企业管理人才也非常紧张。由于模具企业效益欠佳及对科研开发和技术攻关重视不够，科研单位和大专院校的眼睛盯着创收，导致模具行业在科研开发和技术攻关方面投入太少，致使模具技术发展步伐不大，进展不快。 （3）工艺装备水平低，且配套性不好，利用率低近年来我国机床行业进步较快，已能提供比较成套的高精度加工设备，但与国外装备相比，仍有较大差距。虽然国内许多企业已引进许多国外先进设备，但总体的装备水平比国外许多企业低很多。由于体制和资金等方面的原因，引进设备不配套，设备与附件不配套现象十分普遍，设备利用率低的问题长期得不到较妥善的解决。 （4）专业化、标准化、商品化程度低，协作能力差 由于长期以来受“大而全”“小而全”影响，模具专业化水平低，专业分工不细致，商品化程度低。目前国内每年生产的模具，商品模具只占40%左右，其余为自产自用。模具企业之间协作不畅，难以完成较大规模的模具成套任务。模具标准化水平低，模具标准件使用覆盖率低也对模具质量、成本有较大影响，特别是对模具制造周期有很大影响。 （5）模具材料及模具相关技术落后 模具材料性能、质量和品种问题往往会影响模具质量、寿命及成本，国产模具钢与国外进口钢材相比有较大差距。塑料、板材、设备性能差，也直接影响模具水平的提高。 成型工艺方
- 温馨提示:
1: 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
人人文库网所有资源均是用户自行上传分享，仅供网友学习交流，未经上传用户书面授权，请勿作他用。
川公网安备: 51019002004831号