关键词: 数学模拟, 包围弧, 纺纱加捻三角区, 毛羽, 条干不匀

Abstract:

To exploer the relationship batween the feature of spinning guider' s movement and the qualities of ring spun yarn, a yarn gueder movement model was developed during the whole ring bobbin yarn package formation process, and arc length change was analyzed for the staple strand wrapping on the front roller within yarn formation zone. Then, the spinning triangle geometric square variations were investigated with the forementioned arc length change, and influence of above variations on spun yarn properties were also predicted, theoretically. Theoretical analysis indicated that spinning guide going up and down periodically led to the corresponding changes of decreasing and increasing geometric square of spinning triangle zone, influencing yarn hairiness directly. Experiments were also carried out to confirm theory above. Experimental results showed that yarn hairiness decreased as the responding decreasing geometric square of spinning triangle zone in the same position of packaging; the properties of whole bobbin yarn’s hairiness was influenced by spinning triangle’s changes, the size of yarn loop and so on.

Key words: mathematic simulation wrapping arc, spinning triangle zone, hairiness, irregularity