一体化茶叶真空包装机设计【28张CAD图纸、文档所见所得】
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本课题针对某型号茶叶真空封口包装机械设计问题,深入该企业调研,收集相关数据,分析设计需求及任务;基于功能及成本等约束,设计该茶叶真空封口包装机。 具体内容包括: 1、 基于茶叶真空封口包装机的运动及传动需求,设计其机械原理方案,绘制原理方案图; 2、 根据选择的原理方案,完成结构方案设计,绘制结构设计草图,并进行强度等校核; 3、 采用合适的建模工具,对茶叶真空封口包装机进行3D建模,完成装配干涉等检查,并生成二维装配图; 4、 根据装配图绘制各非标件的零件图; 5、 依据设计的过程及结果,撰写设计说明书。 论文立足于茶叶真空封口包装机械的实际需求,重点解决其传动及执行装置设计问题。要求独立完成毕业设计;论文论点正确,有应用价值,能够为解决实际问题提供依据;论文结构严谨、条理清晰,内容完整、概念和观点正确、文理通顺,且用语和格式符合规范。论文字数在10000字以上;翻译2万印刷字符(或译出5000汉字)以上的有关技术资料或专业文献。 毕业论文外文翻译毕业设计(论文)题目一体化茶叶真空包装机设计翻译题目一体化茶叶真空包装机设计学 院工学院专 业机械制造及其自动化姓 名班 级 学 号指导教师一体化茶叶真空包装机设计Direct mechanical energy measures of hammer mill comminution of switchgrass,wheat straw, and corn stover and analysis of their particle size distributionsAbstract: With the development of economy and the improvement of peoples living standards, the rapid development of tea in China, in this case to give us tea packing machine a self - show opportunity. In the face of fiery summer, tea sales in full swing, and the attendant is faced with the problem of storage of tea, tea packaging is increasingly important. Over time, those who are not conducive to the storage of tea packaging will be eliminated by the market, and tea vacuum packaging machine as a good helper to help tea to solve their problems.Keywords: Tea vacuum packaging machine; development; structure; principle;1. IntroductionTea vacuum packaging machine with plastic composite film or plastic aluminum foil composite film as packing material, specially designed for tea packaging and design, the other small package can also carry out vacuum packaging, effectively prevent the goods from corruption, to ensure the quality, freshness, taste, color retention, extend the storage period of the product.Tea vacuum packing machine with plastic composite film or aluminum foil plastic composite film for packaging materials, all kinds of tea, black tea, green tea, oolong tea, Puer tea, Dahongpao, instruments and medicines, food and grain. Fruit. Pickles, preserved fruit, aquatic products, native products, chemical raw materials, electronic components and protection products and so on. Whether it is a solid, powder, paste or liquid can be of vacuum heat sealing packaging. Because a high degree of vacuum in the bag, which can effectively prevent lipid oxidation and aerobic bacteria to multiply and cause product spoilage and deterioration of to guarantee, preservation time and flavor, color retention, to extend the period of storage of the products (commodities) and also on some soft object, after vacuum packaging shrink packaging volume, easy transportation and storage.2. Research status and development trend of tea vacuum packaging machine 2.1 research status1, sales of packaging materials Our country mainly uses the plastic woven bag, the compound plastic bag as the packing container, but these bags are in the transportation, loading and unloading, the retail and so on many questions need to solve. Use of plastic woven bags to the packaging of tea, the phenomenon of waste is more serious, the general can only use 1-2 times, the relative cost is relatively high. And the packaging is simple, Kaifeng difficult to seal, not conducive to the preservation of a longer period of time, pest, mildew phenomenon is serious. Packaging materials, poor moisture barrier, easy oxidation of moldy tea. Plastic compound bag is made of composite packaging material with high barrier property, in a certain extent, can solve the tea mold, insects, fresh problems, but is difficult to deal with, is not easy to degrade due to using is restricted by certain.2 domestic sales of packaging 2 kinds of packaging technologyA common pack, using polypropylene plastic woven bag of tea packaging, packaging process did not exert any preservation technology, the packaging of tea mothproof, mildewproof and freshness keeping effect of difference;Another kind of vacuum packaging technology for packaging, vacuum packaging technology for tea storage has good preservation effect, but due to the shape of tea itself and the choice of vacuum degree is not appropriate, the vacuum packaging choice of vacuum degree is generally between -0.07 -0.09kPa, as long as the vacuum degree in this range, the factory are qualified products. Because of the vacuum degree is bigger, the packaging material tightly wrapped tea, because tea at both ends of a sharp, packaging bag can easily be punctured rice and formation of pinholes, packing bag will leak, resulting in vacuum package failure. The test shows that the vacuum degree of the vacuum is -0.09MPa of the tea packing bag, still placed, not stacking, in 20 days, the packing bag of the broken rate is 16%, so high vacuum degree will inevitably lead to high rate of broken bag. In the distribution process, the friction, impact and drop of the bags are also easy to break the bag. According to the statistical vacuum packaging in the circulation process of the broken bag rate reached 30%. Because of the vacuum packing problem caused by the waste of tea, to consumers and businesses have brought the loss and trouble. So it is good for the tea to be combined with the current environment, so as to achieve good results.2.2 development trendVacuum packaging technology originated in 1940s. Since the successful application of polyester, polyethylene plastic film in 1950, the vacuum packaging machine has been developed rapidly, and its technical development trend is mainly reflected in the high productivity, automation, multi function, the composition of production lines, the use of new technologies, these five aspects. High productivity. The productivity of the vacuum packaging machine has been developed from 10 parts per minute, the production rate of thermal forming, filling and sealing machine can reach 500 pieces per minute. Adopt related new technology. On the packaging method, the packaging is replaced by vacuum packaging, which is closely integrated with the three aspects of packaging, packaging materials and packaging machine. It is used in the control technology, and the technology of computer and micro electronics technology. The advanced device is installed on the vacuum packaging machine.Production automation: the automation of the vacuum packaging machine not only improves the production efficiency, but also has the advantages of safety and health. Japan, a company of the production of rotary vacuum chamber type packaging machine, is a very high degree of automation, multi - station packaging machine. The machine has 2 rotary table, filling and pumping vacuum, filling the turntable with 6 positions, the filling material, the injection, the injection of the package to the vacuum rotary table; the vacuum rotary table has 12 positions (vacuum chamber), and the production efficiency can reach 40 bags / min, mainly used for packaging of soft canned food.With production line: when the function is more and more, the function of all the functions on a single machine will make the structure becomes very complex, operation and maintenance is not convenient. By this time, the function of the machine can be matched with different efficiency and the efficiency of the machine can be more complete. As the development of a company in France fish vacuum packaging production line, textile vacuum packaging system. Other models belong to this type. China Industry Fair will science and technology forum for 11 consecutive years the focus criteria, this year the experts and entrepreneurs around the green packaging main proposition to packaging materials, transportation, hazardous substances provisions of standard topics in-depth discussion. National Development and Reform Commission deputy inspector Zhao Penggao introduced, Chinas large and medium cities of packaging waste volume accounted for nearly 1/2 of the total municipal solid waste, the weight of 1/3, the implementation of green packaging, packaging material to reduce pollution has become a major and pressing issues. Standard content is not reasonable and perfect; the standard is not enough coordination, the lack of systematic; heavy form, can be operated. The World Packaging Organization Asian Packaging Center President Kim Xiangzuo China in the future to be become truly global packaging industry center, promote the development of industrial clusters and technological progress, must improve the China in the world packaging industry discourse and rule making power. The seminar delivered an industry recognized information, the status quo of Chinas packaging industry standard, has been unable to meet the actual needs of the industrys rapid development, and realize the packaging by big to strong, it is urgent to improve the standardization level of the whole industry. Gold Xiangzuo revealed in our country is in the planning and construction of world packaging industry center, the construction of the world packet based, development of civil military integration, science and technology research and development, trade and logistics, cultural and creative, packaging equipment, packaging materials, agricultural products processing, packaging etc. key base; the implementation of WTO Research Institute, WPO University, high-end packaging products, advanced packaging equipment, new packaging materials such as 18 key projects, which led by the world packaging center group world packaging industry center will joint enterprises, state-owned enterprises and foreign enterprises joint investment, facing the global investment, is expected to the scale of investment of more than 120 billion yuan.5湖州师范学院毕业设计(论文)开题报告学 生 姓 名班级学号专 业机械设计制造及其自动化指 导 教 师开题时间2015.9.27设计(论文)题目一体化茶叶真空包装机设计选题意义、研究现状及存在问题选题意义:随着经济的发展,以及人们生活水平的提高,我国茶叶发展迅猛,在这种情况下给我们茶叶包装机一个自我发展的机会。面对火热的夏天,茶叶的销量如火如荼,而随之而来却面临着茶叶存放问题,茶叶的包装越发显得重要。随着时间的推移,那些不利于茶叶存放的包装必将被市场所淘汰,而茶叶真空包装机作为茶叶的好帮手,帮助茶叶解决其存放问题。研究现状及存在问题:1、销售包装的包装材料方面我国主要用塑料编织袋、复合塑料袋作为包装容器,而这些包装袋在运输、装卸、零售等环节存在诸多问题需要解决。使用塑料编织袋来包装茶叶,浪费的现象比较严重,一般只能用1-2次,相对成本较高。且包装方式简单,开封后难以再封,不利于较长时间的保存,虫害、霉变现象较为严重。包装材料防潮性差、阻隔性差,茶叶易氧化霉变。塑料复合袋是由高阻隔性包装材料复合而成,在一定程度上可以解决茶叶的防霉、防虫、保鲜问题,但后处理较难,由于不易降解,使用也受到一定的制约。2、国内销售包装的两种包装技术一种为普通包装,利用聚丙烯塑料编织袋对茶叶进行包装,包装过程中不施加任何保鲜技术,这种包装对茶叶的防虫、防霉及保鲜的效果差;另外一种用真空包装技术对包装袋进行抽真空,真空包装技术对茶叶的储存有较好的保鲜作用,但由于茶叶自身的形状以及真空度的选择不合适,目前茶叶真空包装选用的真空度一般在-007-009kPa之间,只要真空度在这个范围内,出厂都为合格的产品。由于真空度较大,包装材料紧紧包裹茶叶,由于茶叶两端较尖,包装袋很容易被米粒扎破,形成针孔,这样包装袋就会漏气,造成真空包装失效。有试验表明,抽气真空度为-009MPa的茶叶包装袋,静止放置,不堆垛,在20天之内包装袋的破漏率为16,所以高真空度必然造成高破袋率。另外包装袋在流通过程中袋与袋之间的摩擦、碰撞和跌落也很容易造成破袋。据统计真空包装在流通过程中的破袋率达到30。由于真空包装的问题造成了茶叶的浪费,给消费者和企业都带来了损失和麻烦。所以在对茶叶进行保鲜包装的同时要和流通环境结合起来,这样才能取得良好的效果。研究目标和内容研究目标:改良茶叶真空包装不良较多等因素,提高包装效率,降低成本,最终完成一体化茶叶真空包装机的整体设计。研究内容:针对一体化茶叶真空包装机在应用中出现的问题,对一体化茶叶真空包装机进行具体的分析和优化设计。对一体化茶叶真空包装机的等量装袋,真空包装等主要部件进行选型和校核,结合原理图等对整个系统的工作方法和原理进行描述,尽可能实现高效,轻便;结构设计时应使制造成本尽可能低;外观匀称;包装效率要高。研究方法、步骤和措施第一阶段:准备阶段:了解包装机的发展现状和发展趋势,查阅课题相关的国内外文献,拟订设计思路。第二阶段:设计阶段:确定包装机的总体设计方案,通过基本要求进行计算,确定主要参数,对所得结果进行分析、处理,从而对一体化茶叶真空包装机进行选型,并进行相关参数的校核。第三阶段:制图阶段:整理各类数据和资料,利用CAD制图,分别做出系统的总装图及各部件的装配图和零件图。 第四阶段:总结阶段:撰写设计说明书,检查图纸,准备答辩。研究的总体安排与进度2015年6月30日 选择毕业设计题目2015年7月2日2014年7月5日 公布题目学生和教师双向选择,教师介绍题目,确定毕业设计题目老师下达任务书2015年7月6日 机械系毕业设计动员报告2015年7月7日2014年9月25日 准备文献综述、外文翻译和开题报告,完成方案设计,毕业设计讲座,论文规范2015年9月30日前 开题答辩2015年10月30日 上交文献综述、开题报告2015年11月15日 完成结构设计2015年11月30日 完成总装配图并进行中期答辩2015年12月20日 完成所有图纸2015年12月30日 审图,图纸,论文交到审图老师2016年1月10日 毕业答辩2016年1月12日 上交所有毕业论文材料、光盘资料、推优工作选题意义:立式锤片粉碎机是一种新型的饲料粉碎机。近年来,该机型已在欧洲的饲料厂中应用,并显示出明显的成效。与常用的卧式锤片粉碎机相比, 立式锤片粉碎机据称可提高产量25% 以上, 节能30% 以上, 且可省去辅助吸风系统, 加上其快速换筛系统、多口分散进料等特点, 该机型将越来越受到饲料厂的欢迎, 有望成为饲料粉碎机的更新换代机型。研究现状及存在问题:锤片式饲料粉碎机是一种冲击式粉碎设备,因其通用性广、粉碎质量好、传动连接方式灵活、空载启动迅速、对饲料的温度敏感性弱、占地面积较小、使用维修方便和生产率高等优点,在国内外饲料加工行业中得到了广泛应用。我国锤片式粉碎机的发展起步于1955年引入的第一台原苏联样机。在几十年发展过程中,国内广大科研人员研究内容主要涉及如何降低粉碎机的能耗,提高粉碎机的效率,延长主要易损零部件的使用寿命和提高物料粉碎粒度均匀性等方面。例如水滴型粉碎机的研发,其水滴形粉碎室结构不仅增大了物料的有效筛理面积,使粉碎机的效率得到提高,而且还破坏了物料环流层,避免物料被过度粉碎,进而降低了粉碎机的能耗。又如对锤片进行表面强化处理和热处理,提高其耐磨性和强度,进而延长了锤片的使用寿命。再如鱼鳞形筛片的研究,它的特点在于筛片上所有长形筛孔一侧向上翘起,形成鱼鳞形状的筛孔,有利于物料及时通过,在降低粉碎机能耗的同时,也改善了物料粉碎粒度的均匀性2。立式锤片粉碎机在保持卧式锤片粉碎机主要优点的基础上,对其存在的问题有明显的改进, 降低了能耗, 提高了生产率。由于粉碎是饲料厂最重要的工序之一, 是影响饲料质量、产量、电耗及成本的主要因素, 粉碎机的动力配备一般要占饲料厂总配套功率的1/ 3 或更多; 因此, 立式锤片粉碎机的发展及推广应用将对饲料生产有比较重要的促进作用。但在使用中也常出现一些问题,其中筛片与锤片的磨损影响最为明显,导致生产量的下降。锤片式粉碎机生产的微粒主要是球形,因此体积密度相比低515。初期设备投资较大,潜在维修成本高。主要参考文献1 机械加工工艺人员手册。北京:机械工业出版社,19982 夹具非标准夹具手册。北京:机械工业出版社,20023 机械零件设计手册。北京:冶金工业出版社,2000 4 机械设计手册(1-5卷).北京.机械工业出版社,19985 联合编写组.机械零件设计手册S.北京:机械工业出版社, 1987.9.6 成大先.机械设计手册(单行本):常用设计资料S.北京:化学工业出版社,2004.1.7 成大先.机械设计手册(单行本):机械传动S.北京:化学工业出版社,2004.1.8 路甬祥.液压气动技术手册S.北京:机械工业出版社,2004.59 Shigley, J. E. ,and C. R. Mischke. Mechanical Engineering Design. 5th ed. New York: McGraw-Hill, 198910 Robert L. Mott. Machine Elements in Mechanical Design. 北京:机械工业出版社,2003.1指导教师审核意 见 指导教师(签名) 年 月 日湖州师范学院求真学院毕业论文文献综述1 毕业论文文献综述毕业 论 文 题 目一体化茶叶真空包装机设计文献综述题目一体化茶叶真空包装机设计学 院工学院专 业机械设计制造及其自动化姓 名学 号指导教师一体化茶叶真空包装机设计湖州师范学院机械设计制造及其自动化专业 2011283603 王震宇摘要: 随着经济的发展,以及人们生活水平的提高,我国茶叶发展迅猛,在这种情况下给我们茶叶包装机一个自我发展的机会。面对火热的夏天,茶叶的销量如火如荼,而随之而来却面临着茶叶存放问题,茶叶的包装越发显得重要。随着时间的推移,那些不利于茶叶存放的包装必将被市场所淘汰,而茶叶真空包装机作为茶叶的好帮手,帮助茶叶解决其存放问题。关键词: 茶叶真空包装机;发展;结构;原理;1 前言茶叶真空包装机以塑料复合薄膜或塑料铝箔复合薄膜为包装材料,专为茶叶成型包装而设计的,对其它小型包装物亦能进行真空包装;有效地防止物品腐败变质,达到保质、保鲜、保味、保色的功能,延长产品的储存期限。茶叶真空包装机以塑料复合薄膜或塑料铝箔复合膜为包装材料,对各种茶叶,红茶、绿茶、铁观音、普洱、大红袍等,仪器药品,粮食.果品.酱菜,果脯,水产品,土特产,化工原料,电子元件及军用品等。不论是固体,粉状,糊状或液体均可进行真空热封包装.由于袋内真空度高,可有效的防止脂类品氧化和好氧性细菌繁殖而引起的物品腐败和变质,达到保质,保鲜,保味,保色的功能,延长产品(商品)的储存期限,同时对某些松软的物品,经过真空包装后缩小包装体积,便于运输和储存。2 茶叶真空包装机的研究现状与发展趋势2.1 研究现状1、销售包装的包装材料方面我国主要用塑料编织袋、复合塑料袋作为包装容器,而这些包装袋在运输、装卸、零售等环节存在诸多问题需要解决。使用塑料编织袋来包装茶叶,浪费的现象比较严重,一般只能用1-2次,相对成本较高。且包装方式简单,开封后难以再封,不利于较长时间的保存,虫害、霉变现象较为严重。包装材料防潮性差、阻隔性差,茶叶易氧化霉变。塑料复合袋是由高阻隔性包装材料复合而成,在一定程度上可以解决茶叶的防霉、防虫、保鲜问题,但后处理较难,由于不易降解,使用也受到一定的制约。2、国内销售包装的两种包装技术一种为普通包装,利用聚丙烯塑料编织袋对茶叶进行包装,包装过程中不施加任何保鲜技术,这种包装对茶叶的防虫、防霉及保鲜的效果差;另外一种用真空包装技术对包装袋进行抽真空,真空包装技术对茶叶的储存有较好的保鲜作用,但由于茶叶自身的形状以及真空度的选择不合适,目前茶叶真空包装选用的真空度一般在-007-009kPa之间,只要真空度在这个范围内,出厂都为合格的产品。由于真空度较大,包装材料紧紧包裹茶叶,由于茶叶两端较尖,包装袋很容易被米粒扎破,形成针孔,这样包装袋就会漏气,造成真空包装失效。有试验表明,抽气真空度为-009MPa的茶叶包装袋,静止放置,不堆垛,在20天之内包装袋的破漏率为16,所以高真空度必然造成高破袋率。另外包装袋在流通过程中袋与袋之间的摩擦、碰撞和跌落也很容易造成破袋。据统计真空包装在流通过程中的破袋率达到30。由于真空包装的问题造成了茶叶的浪费,给消费者和企业都带来了损失和麻烦。所以在对茶叶进行保鲜包装的同时要和流通环境结合起来,这样才能取得良好的效果。2.2 发展趋势真空包装技术起源于20世纪40年代。自1950年聚酯、聚乙烯塑料薄膜成功地应用于商品包装以来,真空包装机便得到迅速的发展,其技术发展趋势主要体现在高生产率、自动化、单机多功能、组成生产线、采用相关新技术这五个方面。高生产率。真空包装机的生产率已从每分钟数件发展到数10件,热成型充填封口机的生产率可达500件/分钟以上。采用相关新技术。在包装方法上大量采用充气包装取代真空包装,将充气成分、包装材料与充气包装机三方面的研究紧密结合起来;在控制技术上,更多地应用计算机技术和微电子技术;在封口方面应用热管和冷封口技术,也可以将先进的装置直接安装在真空包装机上,如装上计算机控制的粗粒物料高精度组合秤;在旋转或真空
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