Research And Development Of Balloon Control Device Based On A New Type Of High Speed Wrapped Yarn Machinery

Traditional mechanical coated wire machine in the cladding is through the dragon took turns the whole outsourcing yarn package, load is bigger, the actual production it is difficult to improve the speed of coated, limiting the production efficiency, the current maximum of coated hollow spindle speed still not break 25000 r/min, so the transformation and upgrade the traditional coating machine is imperative. New coated wire machine is in the study of the formation mechanism of the coated wire, on the basis of the new type of cladding process, the outsourcing package yarn spinning has single motor drives the rotor to realize single yarn spinning, outsourcing cladding speed can reach 30000 r/min, achieve stability cladding.Coated wire formed in the process of outsourcing yarn at high speed, presents a balloon phenomenon. Balloon in the actual spinning process, balloon is a comprehensive embodiment of the stress, the decision of the formation of the balloon yarn tension balloon shape, the size of the yarn tension will affect the quality of the wrapped yarn. This topic is based on the new balloon study coated wire machine, in practical production, although with large promotion in the cladding rate, but the problem such as yarn tension is too large, the balloon is not stable. And the actual yarn sample test, also can appear some yarn sample volume is not enough and outsourcing yarn faults and other problems. Therefore, in order to realize the stability of the high speed coating coated wire machine, it is necessary to reduce the yarn tension of the balloon, realize high speed low tension of the coating.This topic first study the traditional working principle of hollow spindle covering machine, analyses the problems existing in the traditional coating machine, and the research status of these issues to make certain that. Compared with traditional coating process, this paper introduces the new type of cladding machine of spinning process,based on the new coated wire machine characteristic of the coating structure,respectively set up single balloon and the mathematical model of double balloon,through the simulation of the equation of single balloon, balloon configuration diagram and the yarn Zhang Litu. Under different parameters is obtained by double balloon model thread hook yarn tension, and combining the theory of orthogonal test is carried out solving condition and tension, and get the main factors influencing the double balloon yarn tension.Second, single balloon and double balloon experiment, single balloon experiment analyzed the yarn density, rotor speed and speed of balloon height and crimp on the influence of the yarn tension and ring form; Based on orthogonal test,the result of the double balloon theory with the method of experiment on the influencing factors of yarn tension is bigger to experiment, through the experimental method to determine the appropriate balloon control related to the size of the loop.Finally, combined with the experimental results and engineering practice to get reasonable process parameters of balloon control ring, it is concluded that when the inner diameter and 75 mm, balloon control ring installation height is 0.45 times that of the balloon height can reach relatively optimal tension control effect, and combining these conclusions balloon control device design and development.