Abstract: The present invention provides a spinning apparatus comprising a spinning member U composed of a nozzle a nozzle member for generating a whirling current and a non-rotary hollow guide shaft member, wherein a yarn passing hole 7b near a tip portion 7a of a hollow guide shaft member 7 is formed to be non-circular. The non-circular yarn passing hole near the tip portion of the hollow guide shaft member makes it possible to vary the whirling speed of reversed fibers whirled in a circumferential direction, thereby increasing the amount of hairinesses occurring in a spun-out yarn. Consequently, a soft spun yarn with many hairinesses can be manufactured without reducing the strength of the generated spun yarn.

Abstract: The present invention provides a spinning apparatus comprising a spinning member U composed of a nozzle a nozzle member for generating a whirling current and a non-rotary hollow guide shaft member, wherein a yarn passing hole 7b near a tip portion 7a of a hollow guide shaft member 7 is formed to be non-circular. The non-circular yarn passing hole near the tip portion of the hollow guide shaft member makes it possible to vary the whirling speed of reversed fibers whirled in a circumferential direction, thereby increasing the amount of hairinesses occurring in a spun-out yarn. Consequently, a soft spun yarn with many hairinesses can be manufactured without reducing the strength of the generated spun yarn.

Abstract: A spinning apparatus having a nozzle n1 that applies a rotating air current to fibers f and a hollow spindle s1, wherein a fiber introduction member E with a fiber guide surface e8 having a torsion angle of 100.degree. or more is disposed, without a needle shaped guide member e2, near the tip s1" of the fiber introduction side of the hollow spindle. Since the torsion angle of a fiber guide surface of the fiber introduction member is 100.degree. or more, fibers can be bundled easily without the needle shaped guide member and leaves and other foreign matter contained in a sliver are prevented from accumulating between the fiber introduction member and the hollow spindle, thereby reducing the frequency of yarn breakage and improving the spinning capability.

Abstract: A spinning apparatus for producing a spun yarn by using swirling air currents to twist a non-twisted short staple fiber bundle drafted by a drafting unit. A nozzle block having at least one nozzle provides a swirling air current that acts upon the fiber bundle. A fiber bundle passage is defined by the nozzle block and a needle holder having a substantially central, longitudinal axis and a guide surface that twists relative to the longitudinal axis. A guide member associated with the needle holder projects toward the inlet of a hollow spindle.

Abstract: In a yarn splicing process comprising steps of allowing a yarn from a bobbin and a yarn leading to a package to intersect with each other in a yarn splicing device; cutting off yarn end portions extending from the yarn splicing device; splicing the cut yarn ends; and re-starting the winding operation for winding up a yarn on a package from a bobbin, the process further includes steps of clamping the superfluous yarn branching off from the spliced joint before starting a drum to wind a yarn on a package to prevent a defective splicing.

Abstract: A pneumatic yarn splicing method and apparatus for spun yarns. Extremities of ends of the yarn which are inserted in overlapping and oppositely directed relationship in a yarn splicing hole are in free conditions and at least two different points of the yarn ends within the splicing hole are individually acted upon by flows of a fluid turning in opposite directions.

Abstract: A L-shaped bunch winding-regulating guide is fixed to a cradle arm so that while a bobbin holder is located at the position for bunch winding on a bobbin, a yarn gripped by the bobbin and bobbin holder is inhibited from shifting to the traverse region on rotation of the bobbin.

Abstract: A yarn end untwisting device for a pneumatic yarn splicing apparatus for spun yarns. Both yarn ends are guided into individual nozzle hole of the untwisting device and applied a pressurized fluid against each yarn end within the nozzle hole to open and loosen the component fibers of the yarn end. In the present device, the quantity of the pressurized fluid and the direction of jetting fluid can be changed and adjusted easily.