【作者】 宋广军；

【导师】 吕柏源；

【作者基本信息】 青岛科技大学 ， 化工过程机械， 2010， 硕士

【摘要】 橡胶冷喂料挤出机是橡胶加工行业重要的成型设备之一,它的出现推动了橡胶加工行业的发展进步。在冷喂料挤出机长期发展的过程中,挤出机的螺杆作为其最重要的部件,得到了人们广泛的研究和探索,先后出现了不同螺杆构型的挤出机。但是塑化能力的提高并没有带来挤出机生产能力的相应提高,其中一个重要因素就是喂料能力的低下。早期的自由喂料方式和后来的简单旁压辊喂料方式都不能很好地满足冷喂料挤出机塑化能力的发展。本课题深入地对橡胶挤出机和螺旋啮合喂料装置的设备和理论进行了研究探索,并在此基础上设计出了一种全新的挤出机设备——螺旋啮合冷喂料挤出机。这种优化了喂料装置的挤出机喂料能力得到了显著的提高,使得整个挤出机的生产能力也得到了显著的提高。同时,由于本课题设计开发出的橡胶挤出机已经投产使用,其实际应用价值很高。所以本课题是橡胶机械传统设计理论指导实践,实践检验理论的最好明证,具有非常重要的意义。目前已有的橡胶机械CAD系统多是针对不同构型的挤出机螺杆进行二次开发和绘制,还没上升到整机开发的高度。所以,这些CAD系统或者停留在纯理论研究的层面上或者只能作为挤出机设计的一部分来使用。同时,这些CAD系统的开发环境较早,技术条件不成熟,导致难以满足复杂系统多元化的需求,难以实现软件的扩展性和重用性,也难以解决跨进程、跨平台移植和分布式应用等问题。目前广为流行的编程开发环境——.NET Framework并非老版本应用程序的简单升级,而是具备了统一的集成开发环境(IDE)、真正的面向对象、通用语言运行库(CLR)、新一代的数据访问、多线程的直接支持等特点。基于以上这些原因,应用新语言和新设计思路重新开发橡胶机械CAD系统势在必行。本课题在螺旋啮合冷喂料挤出机设计开发完成的基础上,构思了对橡胶挤出机整机进行CAD二次开发的设计思想。本设计选择了Visual Basic.NET 2005作为开发语言,选择Access 2003数据库存储冷喂料挤出机的经验公式和数据以便进行查询、更新、赋值等操作,进一步地应用ActiveX技术调用AutoCAD 2004绘图软件对挤出机整机和零部件进行模块化设计和参数化设计,最终达到整机和零部件绘制和出图等工作。本课题提出的对橡胶挤出机进行整机化的设计理念是橡胶机械CAD二次开发未来发展的方向,具有领向标的作用,有着深远的指导意义。在此设计理念指导下对程序进行编码,生成的CAD系统具有设计开发挤出机快捷迅速、功能丰富、可扩展性好等特点,是橡胶机械CAD二次开发的典范。更多还原

【Abstract】 Cold feed rubber machines, which prompt the evolution of the rubber processing industry, are one of the most important forming equipments in the fields of rubber processing. During the long-time development of the cold feed rubber machine, the screw of extruding machine, as the important component, attracted our extensive study and exploration, and got new different types one after another.. But the improvement of plasticizing capacity did not bring the improvement of productive capacity of the extruder as it deserves, one of the vital factors is the deficiency in the ability of feeding. Both the former free feed and the present simple rolled feed can’t meet the requirements of the development of the extruder’s plasticizing capacity.The subject has made deep researches and profound explorations on the equipment and theory of helical intermeshing feed device, and, based on this, designed a bran-new extruder—research on helical intermeshing cold feed extruder. The feed-optimized extruder enhances the feed capacity significantly, and makes a prominent improvement on the productive ability.Also, the design of the rubber extruder in the subject has been put into use, and its practical value is high. Thus, the concept is the best proof that, in the field of traditional design of rubber extruder, theories can direct practice and practice can verify theories, and is of great significance,In present, the existing CAD systems of rubber machines mostly make a secondary development and plotting on different extrude screws, and can’t measure up to the standard of whole-machine developing. As a result, these CAD systems either tarry at the theoretical research or just be used as a portion. Meanwhile, the early development environment of the CAD system is early and the technology is too immature, which causes many questions, just like that it is hard to fulfill the requirement of the diversification of the complex system., it is difficult to realize the augmentability and the reusability of the software, and it is difficult to solve the problems of out-of-process and cross-platform implantation and distributed application and so on, and so on. The present popular programming environment——.NET Framework have features of consolidated Integrated Develop Environment(IDE), truly object oriented, Common Language Runtime(CLR), new generation method of data access,and multi-thread direct support and so on, rather than a simple upgrading of the old edition of the application program. Based on the above reasons, redevelop CAD system of rubber machine used new language and new design method is both inevitable and necessary.Based on the design and development of helical intermeshing cold feed extruder, the treatise structured the design philosophy of actuating the secondary development of the whole rubber extruder used CAD. This design chooses Visual Basic and.NET 2005 as the develop language, selects Access 2003 Database to memory the empirical formula and data of cold feed extruder for the operations of inquiring, updating and assignment and so on, and, used the technology of ActiveX, invokes the software of AutoCAD 2004 to finish the modularization design and the parametric design of the whole extruder and the components and parts, and finally complete the drawing and picturing of the whole extruder and the components.The issue raised on the rubber extruder machine design concept is the direction of future development about secondary development of rubber mechanical CAD. It is the leading role to the subject which has far-reaching significance. To code under the guidance of this design procedure, CAD system could design and generate extruder fast, feature-rich, and with good scalability. The system is a rubber machinery model of the secondary development of mechanical CAD.更多还原