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毕 业 设 计 （ 论 文 ）题目： 立式袋装机纵封装置设计 信 机 系 机 械 工 程 及 自 动 化 专 业学 号：学生姓名：指导教师： 诚 信 承 诺 书本人郑重声明：所呈交的毕业设计（论文） 立式袋装机纵封装置设计 是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班 级：学 号：作者姓名： 信 机系 机械工程及自动化 专业毕 业 设 计 论 文 任 务 书一、题目及专题：1、题目 立式袋装机纵封装置设计 2、专题 二、课题来源及选题依据近半个多世纪以来，随着生产与流通日益社会化、现代化，产品包装正以崭新的面貌崛起，受到人们普遍重视。一些技术相对发达国家，在食品、轻工、化工、医药、电子、纺织、兵器和仪表等相关工业部门，已经不同程度地形成由原料处理、加工和产品包装基本环节组成的包装自动化和连续化的生产过程，有的还将包装容器成型、包装材料加工及包装成品储存系统联系起来形成高效率的流水作业线。所以，实现包装的机械化和现代化，尤其是实现具有高度灵活性的自动包装线，不仅体现了现代化的发展方向，同时也可以获得巨大的经济效益。本文介绍了裹包机的横封装置设计。 三、本设计（论文或其他）应达到的要求： 阅读外文资料，翻译与所学专业或课题相关的外文文献 3000字左右，语句通顺、流畅、准确； 了解立式袋装机纵封装置的工作原理； 根据加工产品具体结构和加工要求，拟定分析设备设计方案； 用绘制部分零件图，装配图； 能够熟练使用 UG，并用 UG 对部分零件进行三维建模； 撰写论文，要求符合本科论文的格式要求，语言简洁、流畅、层次分明。整个毕业设计过程的技术工作要严谨、灵活、工作要有主动性，计算方法、计算的程序、计算结果、结论要正确。 四、接受任务学生：五、开始及完成日期：自 2012 年 11 月 12 日 至 2013 年 5 月 25 日六、设计（论文）指导（或顾问）：指导教师签名签名签名教 研 室 主 任学科组组长研究所所长签名系主任 签名2012 年 11 月 12 日编 号毕 业 设 计 （ 论 文 ）相 关 资 料题目： 立式袋装机纵封装置设计 信 机 系 机 械 工 程 及 自 动 化 专 业学 号：学生姓名：指导教师：目 录一、毕业设计（论文）开题报告二、毕业设计（论文）外文资料翻译及原文三、学生“毕业论文（论文）计划、进度、检查及落实表”四、实习鉴定表 毕 业 设 计 （ 论 文 ）开 题 报 告题目： 立式袋装机纵封装置设计 信 机 系 机 械 工 程 及 自 动 化 专 业学 号：学生姓名：指导教师：课题来源实际产品包装的需要科学依据（包括课题的科学意义；国内外研究概况、水平和发展趋势；应用前景等）21 世纪以来,随着生产与流通日益现代化,产品包装正以崭新的面貌崛起，受到人们普遍重视，无论在国内或国外，包装工作已涉及到各行各业，面广量大，对人民生活、国际贸易和国防建设都带来深刻的影响，甚至在现代生活中出现了过去难以想象的新情况：未经包装出售的商品变得越来越少了，而且包装上的失败往往会使很好的产品得不到成功的销售。因此可以这样说，在将来，如果没有现代化的包装就没有商品的生产和销售，可是如果没有先进的工业与科学技术的综合发展，也不可能出现高水平的现代化包装。迄今，一些科学技术发达的国家，在食品、轻工、纺织、化工、医药、仪表和兵器等工业部门，已经程度不同地形成了由原料处理、中间加工和产品包装三大基本环节所组成的包装连续化和自动化的生产过程，有的还将包装材料加工、包装容器成型及包装成品储存系统都联系起来组成高效率的流水作业线。大量事实表明，实现包装的机械化和自动化，尤其是实现具有高度灵活性(或称柔性)的自动包装线，不仅体现了现代生产的发展方向，同时也可以获得巨大的经济效益。研究内容设计一种立式袋装机纵封装置，原理方案的功能实现，总体方案的设计，结构形式，结构参数，工作参数的设计。要求如下：1. 阅读外文资料，翻译与所学专业或课题相关的外文文献 3000 字左右，语句通顺、流畅、准确；2了解立式袋装机纵封装置的工作原理3根据加工产品具体结构和加工要求，拟定分析设备设计方案4绘制 部分零件图，装配图，各零件的精度配合5. 用 UG 对部分零件进行造型6. 撰写论文，要求符合本科论文的格式要求，语言简洁、流畅、层次分明。上机时数不少于 200 小时，整个毕业设计过程的技术工作要严谨、灵活、工作要有主动性，计算方法、计算的程序、计算结果、结论要正确。拟采取的研究方法、技术路线、实验方案及可行性分析立式袋装机纵封装置主要有链轮，热封滚轮，螺栓，螺杆，滑环等组成。热封时，热封头与连续运动着的袋筒必须具有相同的速度，否则封口部位就能发生起皱或拉长等现象，当袋长规格变化时尤其注意这一点，因此采用回转型的热封头，由于半径固定不变，往往采用不等速运动机构来带动，以便适当调节其封口速度满足热封要求。立式袋装机纵封装置上使用的是一种连续纵封器机构，每一个纵封辊上装有热封头，由电热丝加热并自动进行恒温控制。热封所需的压力可借助两侧的压缩弹簧加以适当调节。可行性分析：通过各主要部分系统的确定，主要问题可以解决。细节问题也可以方便的处理，总的来说，此方案的可行性没有问题。研究计划及预期成果研究计划：2012 年 11 月 12 日-2012 年 12 月 25 日：按照任务书要求查阅论文相关参考资料，填写毕业设计开题报告书。2013 年 1 月 11 日-2013 年 3 月 5 日：填写毕业实习报告。2013 年 3 月 8 日-2013 年 3 月 14 日：按照要求修改毕业设计开题报告。2013 年 3 月 15 日-2013 年 3 月 21 日：学习并翻译一篇与毕业设计相关的英文材料。2013 年 3 月 22 日-2013 年 4 月 11 日：立式袋装机纵封装置总体方案设计。2013 年 4 月 12 日-2013 年 4 月 25 日：图纸的绘制。2013 年 4 月 26 日-2013 年 5 月 21 日：毕业论文撰写和修改工作。预期成果：明确立式袋装机纵封装置预期达到的性能指标。总体方案的设计，可行性的分析。立式袋装机纵封装置的初步设计，总体结构的设计，各零件的材料选择以及各部件的参数设计。强度计算，分析验证,优化设计。完成二维图和三维图的绘制。完成设计说明书。特色或创新之处本立式袋装机纵封装置设计简单，加工方便，生产效率高且安全性高。本立式袋装机纵封装置的特色在于能长时间的工作，并且使用寿命比一般的机器要长，工作稳定。已具备的条件和尚需解决的问题 实验方案思路已经非常明确，已经具备使用 MATLAB 编程仿真的能力和图像处理方面的知识。 使用 MATLAB 编程的能力尚需加强。指导教师意见指导教师签名：年 月 日教研室（学科组、研究所）意见教研室主任签名：年 月 日系意见主管领导签名：年 月 日Numerical control technology and equipping development trend and countermeasureNumerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electro mechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, namely the so-called digitization is equipped, its technological range covers a lot of fields: (1)Mechanical manufacturing technology; (2)Information processing , processing , transmission technology; (3)Automatic control technology; (4)Servo drive technology; (5)Technology of the sensor ; (6)Software engineering ,etc.Development trend of a numerical control technology The application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the industrialized symbol , and with the constant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the peoples livelihood of his plays a more and more important role, because the digitization that these trades needed to equip has already been the main trend of modern development. Numerical control technology in the world at present and equipping the development trend to see, there is the following several respect 1- in its main research focus .1.A high-speed , high finish machining technology and new trend equipped The efficiency , quality are sub-manufacturing technology. High-speed , high finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market competitive power. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP ) to confirm it as the centre in the 21st century and study one of the directions in international production engineering. In the field of car industry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of; In the fields of aviation and aerospace industry, spare parts of its processing are mostly the thin wall and thin muscle, rigidity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles , walls . Adopt large-scale whole aluminium alloy method that blank pay empty make the wing recently, such large-scale parts as the fuselage ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equiping the demand which has proposed high-speed , high precise and high flexibility. According to EMO2001 exhibition situation, high-speed machining center is it give speed can reach 80m/min is even high , air transport competent speed can up to 100m/min to be about to enter. A lot of automobile factories in the world at present, including Shanghai General Motors Corporation of our country, have already adopted and substituted and made the lathe up with the production line part that the high-speed machining center makes up . HyperMach lathe of U.S.A. CINCINNATI Company enters to nearly biggest 60m/min of speed, it is 100m/min to be fast, the acceleration reaches 2g, the rotational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, the ordinary milling machine is being processed to need 8h; The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 12* separately! 000r/mm and 1g. In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5m up to from 10m already, accurate grades of machining center from 3- 5m, rise to 1- 1.5m, and ultraprecision machining accuracy is it enter nanometer grade to begin already (0.01m). In dependability, MTBF value of the foreign numerical control device has already reached above 6 000h, MTBF value of the servo system reaches above 30000h, demonstrate very high dependability . In order to realize high-speed , high finish machining, if the part of function related to it is electric main shaft , straight line electrical machinery get fast development, the application is expanded further.1.2 Link and process and compound to process the fast development of the lathe in 5 axes Adopt 5 axles to link the processing of the three-dimensional curved surface part, can cut with the best geometry form of the cutter , not only highly polished, but also efficiency improves by a large margin . It is generally acknowledged , the efficiency of an 5 axle gear beds can equal 2 3 axle gear beds , is it wait for to use the cubic nitrogen boron the milling cutter of ultra hard material is milled and pared at a high speed while quenching the hard steel part, 5 axles link and process 3 constant axles to link and process and give play to higher benefit. Because such reasons as complicated that 5 axles link the numerical control system , host computer structure that but go over, it is several times higher that its price links the numerical control lathe than 3 axles , in addition the technological degree of difficulty of programming is relatively great, have restricted the development of 5 axle gear beds. At present because of electric appearance of main shaft, is it realize 5 axle complex main shaft hair structure processed to link greatly simplify to make, it makes degree of difficulty and reducing by a large margin of the cost, the price disparity of the numerical control system shrinks . So promoted 5 axle gear beds of head 无效 of complex main shaft and compound to process the development of the lathe (process the lathe including 5 ). At EMO2001 exhibition, new Japanese 5 of worker machine process lathe adopt complex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle , make 5 times process and 5 axles are processed and can be realized on the same lathe, can also realize the inclined plane and pour the processing of the hole of awls . Germany DMG Company exhibits the DMUVoution series machining center, but put and insert and put processing and 5 axles 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly.1.3 Become the main trend of systematic development of contemporary numerical control intelligently , openly , networkedlily The numerical control equipment in the 21st century will be sure the intelligent system, the intelligent content includes all respects in the numerical control system: It is intelligent in order to pursue the efficiency of processing and process quality, control such as the self-adaptation of the processing course, the craft parameter is produced automatically; Join the convenient one in order to improve the performance of urging and use intelligently, if feedforward control , adaptive operation , electrical machinery of parameter , discern load select models , since exactly makes etc. automatically automatically; The ones that simplified programming , simplified operating aspect are intelligent, for instance intelligent automatic programming , intelligent man-machine interface ,etc.; There are content of intelligence diagnose , intelligent monitoring , diagnosis convenient to be systematic and maintaining ,etc. Produce the existing problem for the industrialization of solving the traditional numerical control system sealing and numerical control application software. A lot of countries carry on research to the open numerical control system at present, such as NGC of U.S.A. (The Next Generation Work-Station/Machine Control), OSACA of European Community (Open System Architecture for Control within Automation Systems), OSEC (Open System Environment for Controller ) of Japan, ONC (Open Numerical Control System ) of China ,etc. The numerical control system melts to become the future way of the numerical control system open. The so-called open numerical control system is the development of the numerical control system can be on unified operation platform, face the lathe producer and end user, through changing, increasing or cutting out the structure target(numerical control function), form the seriation, and can use users specially conveniently and the technical know-how is integrated in the control system, realize the open numerical control system of different variety , different grade fast, form leading brand products with distinct distinction. System structure norm of the open numerical control system at present, communication norm , disposing norm , operation platform , numerical control systematic function storehouse and numerical control systematic function software developing 包含ument ,etc. are the core of present research. The networked numerical control equipment is a new light spot of the fair of the internationally famous lathe in the past two years. Meeting production line , manufacture system , demand for the information integration of manufacturing company networkedly greatly of numerical control equipment, realize new manufacture mode such as quick make , fictitious enterprise , basic Entrance that the whole world make too. Some domestic and international famous numerical control lathes and systematic manufacturing companies of numerical control have all introduced relevant new concepts and proto 无效 s of a machine in the past two years, if in EMO2001 exhibition, CyberProduction Center that the company exhibits of mountain rugged campstool gram in Japan (Mazak ) (intellectual central production control unit, abbreviated as CPC); The lathe company of Japanese big Wei (Okuma ) exhibits IT plaza (the information technology square , is abbreviated as IT square ); Open Manufacturing Environment that the company exhibits of German Siemens (Siemens ) (open the manufacturing environment, abbreviated as OME),etc., have reflected numerical control machine tooling to the development trend of networked direction.2 pairs of basic estimations of technology and industry development of numerical control of our country The technology of numerical control of our country started in 1958, the development course in the past 50 years can roughly be divided into 3 stages: The first stage is from 1958 to 1979, namely closed developing stage. In this stages, because technology of foreign countries blockade and basic restriction of terms of our country, the development of numerical control technology is comparatively slow. During Sixth Five-Year Plan Period , the Seventh Five-Year Plan Period of the country in second stage and earlier stage in the Eighth Five-Year Plan Period , namely introduce technology, digest and assimilate, the stage of establishing the system of production domesticization arisesing tentatively. At this stage , because of reform and opening-up and national attention , and study the improvement of the development environment and international environment, research , development and all making considerable progress in production domesticization of the products of the technology of numerical control of our country. The third stage is and during the Ninth Five-Year Plan Period on the later stage in the Eighth Five-Year Plan Period of the country, namely implement the research of industrialization, enter market competition stage. At this stage , made substantive progress in industrialization of the domestic numerical control equipment of our country. In latter stage for the Ninth Five-Year Plan , the domestic occupation rate of market of the domestic numerical control lathe is up to 50%, it is up to 10% too to mix the domestic numerical control system (popular ). Make a general survey of the development course in the past 50 years of technology of numerical control of our country, especially through tackling key problems of 4 Five-Year Plans, all in all has made following achievements. a.Have establish the foundation of the technical development of numerical control, has mastered modern numerical control technology basically. Our country has already, the numerical control host computer , basic technology of special plane and fittings grasped and driven from the numerical control system and servoly basically now, among them most technology have already possessed and commercialized the foundation developed , some technology has already, industrialization commercialized. b.Have formed the industrial base of numerical control tentatively. In tackling key problems the foundation that the achievement and some technology commercialize , set up the systematic factories of numerical control with production capacity in batches such as numerical control in Central China , numerical control of the spaceflight etc. Electrical machinery plant of Lanzhou, such factory and the first machine tool plant of Beijing , the first machine tool plant of Jinan ,etc. several numerical control host computer factories of a batch of servo systems and servo electrical machineries as the numerical control in Central China,etc. These factories have formed the numerical control industrial base of our country basically. c.Have set up a numerical control research, development , managerial talents basic team . Though has made considerable progress in research and development and industrialization of numerical control technology, but we will realize soberly, the research and development of the technology of advanced numerical control of our country, especially there is greater disparity in current situation and current demand of our country of engineering level in industrialization. Though very fast from watching the development of our country vertically, have disparity horizontally more than (compare foreign countries with ) not merely engineering level, there is disparity too in development speed in some aspects, namely the engineering level disparity between some high-grade , precision and advanced numerical control equipment has the tendency to expand . Watch from world , estimate roughly as follows about the engineering level of numerical control of our country and industrialization level. a.On the engineering level, in probably backward 10- 1 years with the advanced level in foreign countries, it is bigger in high-quality precision and sophisticated technology. b.On the industrialization level, the occupation rate of market is low, the variety coverage rate is little, have not formed the large-scale production yet; The specialized level of production of function part and ability of forming a complete set are relatively low; Appearance quality is relatively poor; Dependability is not high, the commercialized degree is insufficient; Ones own brand effect that the domestic numerical control system has not been set up yet, users have insufficient confidence. c.On the ability of sustainable development, research and development of numerical control technology , project ability are relatively weak to the competition; It is not strong that the technological application of numerical control expands dynamics; Research , formulation that relevant standards are normal lag behind. It is analysed that the main
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