两工位轮胎胶囊一步法注射硫化机组的设计研究与过程模拟
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摘要
早期的轮胎胶囊都是通过模压法压制而成的,这是一种传统的方法,其具有以下缺点:胶囊质量难以提高;生产效率低;工艺过程复杂;浪费能源;劳动强度大等。为了适应胶囊技术的进一步发展要求,越来越多的胶囊都将会采用注射成型法,因为它生产效率高,浪费少,能耗低,节省胶料,制品物理性能好。但是传统的注射法也同样存在着缺点:其工作过程是先塑化、定量,然后进行注射,是分两步完成的;注射装置结构复杂,加工困难,造价高。本设计针对传统胶囊成型方法存在的缺点进行了新的设计,完成了两工位轮胎胶囊一步法注射硫化机组的设计研究,提高了胶囊的质量,提高了生产效率,降低了能耗,节省了原材料和实现了文明生产,使轮胎胶囊生产技术将进入新的一页。
     本文在深入研究多工位注射工作原理和传统硫化设备构造优缺点的基础上,全新设计了一套两工位轮胎胶囊一步法注射硫化机组。全文通过理论推导建立了一步法注射成型装置和全电动硫化装置的功率消耗、受力变形及应力、应变等数学模型,并进行了大量的设计计算和有限元受力分析,对两工位轮胎胶囊一步法注射硫化机组进行了结构优化设计,为了保证结构的可行性和可靠性,对机台进行了三维仿真设计及工作过程动态模拟。本论文的主要工作与成果如下:
     1.首次设计了两工位轮胎胶囊一步法注射硫化机组。一套注射装置可与两台硫化装置实现两工位注射。通过优化设计使整机受力合理,变形小,工作可靠,同时结构紧凑,占地面积小,可用于大、中、小型胶囊制品的注射成型,克服了传统的转盘式、转角式多工位注射机的缺陷。这对今后轮胎胶囊多工位注射成型技术的设计、研究与应用将产生深远的影响。
     2.首次设计下注的注射方法,即注射口和流道系统设置在下模下方,使胶料在模具中至下而上流动,克服了传统注射口在上、下模中间(胶囊分型面)注射时而引起的内芯模偏心、漏胶的弊端。
     3.本设计对电磁离合器和滚珠丝杠进行协调组合设计,解决了由于采用下注而引起脱模工艺改变(相对于传统的注射脱膜工艺)所产生的机械技术问题。
     4.首次设计了两工位的横向移动装置,采用高精度滚珠滑块导轨副和交流伺服电机,解决了整体机构在移动中实现高精度可靠定位的要求,同时解决了单工位注射机的胶料在注射完毕后在高温下容易硫化的问题,为一步法注射成型实现多工位成型工艺和提高效率奠定了基础。
     5.首次把一步法注射原理运用到两工位胶囊生产工艺中。实现了塑化、定量和注射的同步进行。克服了传统生产胶囊的一些弊端:胶囊质量差;浪费能源;生产效率低等。
     6.在注射结构设计上保证了一步法注射成型所需的高压注射,主要包括:增加螺杆的长径比;螺杆输送段采用小螺距;采用螺旋啮合增压装置;将轴承座设置在减速箱的前部,将减速箱的受拉改为受压,改善了减速箱的受力状况,以承受巨大的轴向力。
     7.设计了应用于轮胎胶囊硫化机的压力机构,这种压力机构采用螺旋副机构,其运动轨迹是垂直往复运动形式的。这种压力机构与先进的传感器数字技术结合,具有运行稳定可靠、对中精度高、往复性能好等优点,是轮胎胶囊硫化机设计的一大创新。
     8.运用了有限元分析进行辅助设计。对零部件结构设计的理论推导和有限元分析相结合,提高了设计合理性和可靠性。
     9.运用传统设计、三维仿真设计和过程动态模拟相结合的设计手段,充分体现了设计与制造同步的现代设计理念,缩短设计周期、降低设计成本,可在物理样机产生之前预先评估设计。
Compression molding is a traditional method in order to produce early capsule. Ithas many disadvantages as fllows: the low quality of capsule; the low efficiency;complex technics process; wasting energy and high labor intension and so on. Moreand more tyre bladder will adopt the injection molding method in order to adapt themore development of it. It has many advantages: high production efficiency; less waste;saving material and high physics capability of capsule. But traditional injection methodhas many disadvantages: Its work has two processes. The first is plasticization andquantification. And the second is injection. The equipment used by the method isexpensive and has very complex structure. The paper has a new design according to thedisadvantages of traditional injection methods. So two-location one step injection tyrecapsule vulcanizing machine has been finished. It improvs the capsule quality andefficency; It saves energy and material. And it realize the civilization in the production.So production technique oftyre capsule has received the new day.
     The paper has deeply researched operation principle of two-location one stepinjection tyre capsule vulcanizing machine and merit and shortcoming of conventionalvacalnizing equipment. By theoretic deduce,building up the mathematics model ofconsuming power about multi-location injection molding machine, stress and strain,moreover, carrying out the relational design calculation and ANSYS analysis,havingdesigned completely new multi-location injection molding machine. Finally, for thesake of guaranting the feasibility and reliability of structure,the parameterizedthree-dimensional simulation design and dynamic process dynamic simulation ofmulti-location injection molding machine are used. The principally innovation ideas ofthe thesis as follows:
     1. First the whole structure of two-location one step injection tyre capsulevulcanizing machine is designed in the paper, which is proved that stress is reasonable,distortion is slight. It overcomes the shortcoming of conventional equipment,and carrys out high-capacity injection. This is a breakthrough in the multi-location injectiondesign.
     2. Underside injection is adopted first. It also means the injection nib and flowpassage are under of mould. Rubber matiaral flow from down to up in the mould. Themethod overcomes the eccentricity of inner mould which is aroused when injection nibis in the middle of mould(departing shape face).
     3. The machine use electric magnetic clutch and ball screw at the same time. Themethod slove the problem which is aroused by the change of injection nib(compared tothe traditional injection and demould technics).
     4. In this paper, two-diamensional moving equipment for multi-working spots isnewly designed. It adopt the high exact ball slide guide strip and AC servo-actuator. Itmeets the requirement of orientation credibility, and it solves the problem that therubber is prone to vulcanized while waiting next injection in single-working spot.
     5. First the principle of one step injection is managed in the process of capsuleproduction. It realize the synchronization of plasticization, quantification and injection.It also overcome many disadvantages of traditional production methods: low quality ofcapsule, wasting energy and low production efficiency and so on.
     6. The structure design, from which high injection pressure needed is guaranteed.It mainly include higher length diameter ratio, shorter pitch of screw in transfer zone,adopting intermeshing helical feeding roll to increase pressure, setting the bearing boxin the front of reduction box to improve the suffering condition.
     7. The thesis process some innovation in the designing of the new concept press instructure oftyre capsule vulcanizing machine. The innovation adopts screw framework. Its track is vertical andreciprocate. The press instructure combines with sensor. So the structure has many advantageswhich are stability and precision of the equipment. The designing embodiment the innovational andoptimizing thinking.
     8. ANSYS is used in accessorial design. The design combined theoretic deduceand ANSYS analysis,which improves the reliability of structure design.
     9. This design successfully combines the traditional design with the threedimensional simulation design and process dynamic simulation design method,whichdeduces design cycle, reduces cost. The ynchronization modern design idea of hedesign and the manufacture has fully manifested.
引文
[1] 杨顺根,白仲元,橡胶工业手册第九分册,北京,化学工业出版社,1994:788~995
    [2] 王兴天,注塑成型技术,北京,化学工业出版社,1989:1~15
    [3] 翟金平,黄汉雄,塑料工业手册—注塑、模压工艺与设备,北京化学工业出版社,2001:50~56
    [4] Hyatt. I l. S.,Hyatt. J.w.,Improvement in processes and Apparatus for Manufactu ring Pyroxyline, U.S. patent No. 133,229, (1872)
    [5] 吕柏源,全电动螺杆旋转(一步法)橡胶注射成型技术的研究与开发,中国橡胶,2005 (21)
    [6] 杨顺根,白仲元,橡胶工业手册第九分册,北京,化学工业出版社,1994:860~938
    [7] 唐国俊,李健镔,橡胶机械设计,北京,化学工业出版社,1984:350~410
    [8] Stannett V. Cellrlose Acetate Plastics, Temple Press, London (1950)
    [9] 唐国政,开发轮胎硫化胶囊注射硫化机,橡胶技术与装备,1999:(2)
    [10] 周彦豪,董智贤,橡胶注射成型硫化技术的新进展,广东橡胶,2005:(1)
    [11] Buchholz, H. Process of Making Molded Article, U.S. Patent No. 1,810,126, (1931)
    [12] Dubois, J.H.,Plastics History U.S.A Chaners Books(1972), Boston
    [13] T.A.Osswald, L.Turng, P.J.Gramann著,吴其晔等译,注射成型手册,化学工业出版社,2005:1~7
    [14] 吕柏源,橡胶螺杆注射成型机的研究与开发,橡塑技术与装备,1999:(2)
    [15] 吕柏源,橡胶旋转(一步法)注射成型技术研究的进展,橡塑技术与装备.2002:(12)
    [16] 焦冬梅,螺杆泵橡胶定子一步法注射成型技术及设备的设计与研究,青岛科技大学硕士论文,2004
    [17] 郊师,轮胎胶囊一步法注射成型注射机的设计与研究,青岛科技大学硕士论文,2003
    [18] 吕柏源,橡胶螺杆旋转注射成型技术及成型机的研究,橡胶工业,2001,48(1):38~42
    [19] 张虹,曹学贵,立式注射成型机,世界橡胶工业,2004,31(9):31~33
    [20] 吕柏源.电动螺旋轮胎定型硫化机的研究,橡塑技术与装备.2004,30(1):31~37
    [21] 杨顺根,白仲元主编.橡胶工业手册(修订版)第九分册(上册).化学工业出版社,北京,1992
    [22] 吕柏源.螺旋式轮胎定型硫化机获国际认证,橡胶技术与装备.
    [23] 陈维芳.RIB双模轮胎定型硫化机特点浅谈,橡胶技术与装备,1992,18(3):21~22
    [24] 朱复华,挤出理论及应用,北京,中国轻工业出版社,2001:70~80
    [25] A.Cox, R.Fenner. Polymer. 1975, (20): 56
    [26] B.Martin. Non-Liner Mech. 1969, (2): 285
    [27] R. C. Donovan. Polym. Eng. Sci. 1971, (11): 247
    [28] R. S. Rowell & D, F, fintayson, screw viscosity pumps, 1922
    [29] 吕柏源等,橡胶冷喂料挤出机螺杆构型分析(一),橡塑技术与装备,1986
    [30] 吕柏源等,螺杆构型影响冷喂料挤出过程的初步研究,橡胶工业,1984:(9)
    [31] 唐跃,吕柏源,橡胶冷喂料挤出机螺杆参数与机头压力实用数学模型的研究,特种橡胶制品,1995,(3)
    [32] 唐跃,吕柏源,橡胶冷喂料挤出机螺杆参数与生产能力实用数学模型的初步研究,橡胶技术与装备,1994,(6)
    [33] 吕柏源等,橡胶冷喂料挤出机螺杆构型分析,橡胶工业设计,1986,(3)
    [34] 唐跃,吕柏源,橡胶冷喂料挤出机螺杆参数与消耗功率实用数学模型的研究,橡胶技术与装备,1995,(1)
    [35] 唐跃,吕柏源,橡胶冷喂料挤出机螺杆造型与挤出温度的数学模型,合成橡胶工业,1995,(4)
    [36] 毛海涛,于文松,吴开琮.轮胎硫化机的结构简介,橡胶技术与装备,1995,21(1):24~30
    [37] 李东平,陈维芳.1145(Z)子午线轮胎定型硫化机的开发,橡胶技术与装备,1998,24(1):20~22
    [38] Bill L. Rose, Kobelco Stewart bolling,蔡洪元译.适应未来需求的新型轮胎硫化机的设计,橡胶技术与装备,1994,20(4):33~36
    [39] 陈维芳,方耀辉,刘福文.1310RIB垂直升降式轮胎定型硫化机的研制,轮胎工业,2001,21(3):179
    [40] 成大先,机械设计手册第三版第3卷,北京,化学工业出版社,1993:12~14
    [41] 周明衡,离合器、制动器选用手册,北京,化学工业出版社,2003:33~52
    [42] 郑志峰,王义行,柴邦衡,链传动,北京,机械工业出版社,1984
    [43] 王义行,陈洪海,导轨链传动的技术特性及工程应用,吉林工业大学学报.1995;(4)
    [44] 隋学民,闰相和,滚子传动链承载能力的确定,机械传动,1994,(1)
    [45] 王义行,链传动结构型式的发展与应用,新技术新工艺,1995,(5)
    [46] Sutherlang G H. Fixed Track Chain Drive. U. S. Patent, 1985, 4:49889
    [47] Sutherlang G G. The Guided Chain. ASME Feehnical Paper. 1986 86—DET 160
    [48] 濮良贵,纪名刚,机械设计,高等教育出版社,2002
    [49] 朱复华,挤出理论及应用,北京,中国轻工业出版社,2001:2
    [50] 周彦豪 陈祸林,橡胶挤出技术的新进展,中国橡胶.2004,20(2).19~21
    [51] G.Ni jman黄元昌,几种不同的橡胶挤出机螺杆、机筒设计方案(下)——应用方法,橡塑技术与装备.2002,28(6).37~44
    [52] 国旭明 张艳,挤出机机筒等离子喷焊工艺的研究,兵器材料科学与工程.1996,19(5).19~31
    [53] 张丽叶,挤出成型,北京,化学工业出版社,2002.7:101~103
    [54] 金华开发区精工电机有限公司.电机样本
    [55] 沈世德,机械原理,北京,机械工业出版社,2002
    [56] 常州市南江减速机有限公司.减速机样本
    [57] 李雨,戴福来,注射成型机,现代橡塑,2004,16(9):22
    [58] 天津华盛昌.减速机样本
    [59] 刘鸿文主编,材料力学下册(第三版),高等教育出版社,北京,1992:148~190
    [60] 王勋成,邵敏,有限单元法基本原理与数值方法,清华大学出版社,1988
    [61] 刘涛 杨凤鹏,精通ANSYS,清华大学出版社
    [62] 朱伯芳,有限单元法原理及应用,水利电力出版社,1998
    [63] 龙驭球,有限单元法概论,高等教育出版社,1991
    [64] 王焕定 王伟,有限单元法教程,哈尔滨工业大学出版社
    [65] 张振宇 董兴平,弹塑性力学问题的广义有限元法,盐城工学院学报:自然科学版.2004,17(4).-19-21,33
    [66] 吴亚平 赖远明,曲线箱梁静动力特性的有限段元分析,铁道学报.2001,23(5)81-84
    [67] 郝文化,ANSYS 7.0,清华大学出版社2004
    [68] 生信实维,SolidWorks官方认证培训教程,清华大学出版社,2003
    [69] 王明强,朱永梅,刘文欣.有限元网格划分方法应用研究,机械设计与制造,2004(1):22~24
    [70] 陈学胜,李友成.合模机构注射中的力学问题,力学与实践,1996,18(4):28~31
    [71] F. Injection Moulding Machines. Macmillan Publishing Co, Inc, New York, 1982:99~120
    [72] Walter Michaeli.Extrusion Dies for Plastics and Rubber:Design and Engineer ing Computations, Hanser Gardner, 2003
    [73] H. MAVRIDIS,R.N. SHROFF.Multilayer Extrusion: Experiments and Computer Simu1 ation. Polymer Engineering and Science, 1994:34(7):559~569
    [74] 王兴天.注塑成型技术.化学工业出版社,北京,1989,500~512
    [75] 刘茜,王太勇,万淑敏.框式油压机机身的有限元分析和优化设计,机械,2004,31(4): 10~12
    [76] 杨顺根.我国橡机行业现状,橡塑技术与装备,2004,30(1):5~11]
    [77] [美]Solidworks著.生信实维编译.Solidworks官方认证培训教程.清华大学出版社,北京,2003
    [78] N. Burtnyk and M. Wein: "Computer Generated Key Frame Animation",SMPTE 80, pp. 149~153 (1979)
    [79] W. Reeve: "Inbetweening for Computer Animation Uilizing", Comput. Graph. (SIGG RAPH), 15, 3, pp. 263~269(1981)
    [80] N. Burtnyk and M. Wein: "Interactive Skelton Techniques for Enhancing Motion Dynamics in key Frame Animation", ACM Commun. 1~19, 10, pp. 564~596(1976)
    [81] A. R. Smith: "Planar 2-Pass Texture Mapping and Warping", Comput. Graph. (SIGG RAPH), 21, 4, pp. 263~272 (1987)
    [82] 于鹏,陈欣主编,入门与提高,清华大学出版社,北京,2003
    [83] 陈尚春主编,3ds max 5动画制作专家之路,清华大学出版社,北京,2003

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