Dynamic Analysis Of Ring/Taveller System In Ring Spinning

It has been nearly 180 years since the first ring spinning frame was invented. Though some new spinning methods were adopted such as open-end spinning, air-jet spinning, friction spinning, electrostatic spinning, vortex spinning and so on ring spinning still plays the most important role of producing high quality yarns in the textile industry.As the key appropriative accessories in the ring spinning frame, ring/travelers and spindle perform the twist and wind of the yarn. Many new high speed spindles, above 22,000r/min, have been developed and on stream. Ring/traveler system becomes the key factors of limiting the spinning speed.The effects of air-drag and Coriolis force on the yarn tension are discussed in the paper. The results show that the air-drag and Coriolis force should not be neglected with the increase of spinning speed and the higher requirements on yarn quality. Then the kinematic property of traveler is analyzed and high-speed-camera photography is used to check the results.Based on the force and kinematic analysis, combined with the research of the shape of ring/traveler, the conception of matching design and manufacture is put forward. So the matching use and management of the ring/traveler is easy and the good spinning performance can be achieved. The first stress on a traveler occurs while clipping it on the ring flange. So the proper installation method should be done from inside to outside of the ring flange. This means minimum bending of the traveler and no scratching of the ring bearing area.The force and kinematic analysis of traveler establish a theory foundation for new ring/traveler design. The conception of matching design and manufacture makes it easy to use and manage the ring/traveler.