| 摘要 |
PROBLEM TO BE SOLVED: To enable a high-speed spinning by increasing success rates of the taking-out of a yarn and the piecing of the yarn. SOLUTION: This spinning frame has a pneumatic spinning nozzle 27 for generating a rotational gas flow at the vicinity of a tip part 24 of a hollow guide shaft 20 and an assistant nozzle 36 for generating the rotational gas flow in a yarn passage 29 in a hollow guide shaft 20. The assistant nozzle 36 is tilted so as to be directed to the downstream side based on the plane P orthogonal to the yarn passage 29. The tilting angleθof the assistant nozzle 36 is preferably 10-35 deg., more preferably 20 deg.. As a result, the component of the flow directed to the downstream side, and accompanied by the rotational gas flow generated by the assistant nozzle 36 is enlarged, and the sucking power into the yarn passage is enhanced. The balance between the components in the downstream direction and the rotational direction is corrected and the yarn strength of a bound yarn to be discharged is increased to prevent the yarn break or the like. |
