| 摘要 |
PROBLEM TO BE SOLVED: To provide an air spinning machine which can prevent the turbulence of air flow in a whirling chamber and can produce a yarn having stable quality.SOLUTION: An air spinning device includes a nozzle block 34, a fiber guide section, and a hollow guide shaft 20. The nozzle block 34 is formed in a whirling chamber. At least one air injection nozzle 27 is formed in the nozzle block 34 to inject compressed air from a nozzle opening 27a opened into the whirling chamber to generate a whirling airflow in the whirling chamber. The fiber guide section has a fiber guide hole communicated with the whirling chamber. The hollow guide shaft 20 is structured such that a fiber passage through which the fiber that has been whirled in the whirling chamber passes is formed in an inner portion thereof. In a cross-section cut through a plane passing through an axial line of the hollow guide shaft 20, a portion of a crosssectional contour of a whirling chamber forming surface 82 located on the side of the fiber guide section is formed as a circular curved section 82a. |
