A textile machine having a plurality of spinning devices, more particularly air-jet spinning devices, which spinning devices have an inlet opening for a fiber band to be spun, and to a spinning hood for a spinning device of a textile machine. In order to provide a textile machine comprising a plurality of spinning devices, which have an inlet opening for a fiber band to be spun and in the case of which the feeding of contaminants into the inlet opening is prevented as much as possible, there is provision for a spinning hood to be provided, which is designed in such a way that the spinning hood separates a spinning space around an inlet opening of the spinning device from the surroundings.

A yarn return unit for returning a yarn into a delivery unit of a textile machine during a piecing process includes a yarn-guiding section configured to guide and position the yarn with respect to the delivery unit. A blowing unit generates an air flow for returning the yarn from the yarn-guiding section into the delivery unit, the blowing unit defining a flow direction of the air flow. The yarn-guiding section includes an open contour that defines an insertion area through which the yarn is inserted into the yarn-guiding section transversely to the flow direction of the air flow.

A yarn return unit for returning a yarn into a delivery unit of a textile machine during a piecing process includes a yarn-guiding section configured to guide and position the yarn with respect to the delivery unit. A blowing unit generates an air flow for returning the yarn from the yarn-guiding section into the delivery unit, the blowing unit defining a flow direction of the air flow. The yarn-guiding section includes an open contour that defines an insertion area through which the yarn is inserted into the yarn-guiding section transversely to the flow direction of the air flow.

An air-jet type spinning device (4), comprising a body (8) at least partially hollow which defines a spinning chamber (12), a fibre feeding device (16) that feeds fibres into the spinning chamber (12), and a spinning spindle (20) including a spinning channel (24) for the suction of yarn obtained from the fibres. The device (4) including at least one channel (28) for sending a jet of compressed air inside the spinning chamber (12). A flow amplifier (32) comprising an expansion chamber (36) is in fluidic connection with the outside of the body (8), wherein the at least one channel (28) comes out in an emission point (40) inside the expansion chamber (36), to introduce compressed air at an inlet cross-section (44). The expansion chamber (36) comprises an outlet mouth (48), fluidically connected to the spinning chamber (12) and having an outlet cross-section (52) smaller than the inlet cross-section (44).

An air-jet type spinning device (4), comprising a body (8) at least partially hollow which defines a spinning chamber (12), a fibre feeding device (16) that feeds fibres into the spinning chamber (12), and a spinning spindle (20) including a spinning channel (24) for the suction of yarn obtained from the fibres. The device (4) including at least one channel (28) for sending a jet of compressed air inside the spinning chamber (12). A flow amplifier (32) comprising an expansion chamber (36) is in fluidic connection with the outside of the body (8), wherein the at least one channel (28) comes out in an emission point (40) inside the expansion chamber (36), to introduce compressed air at an inlet cross-section (44). The expansion chamber (36) comprises an outlet mouth (48), fluidically connected to the spinning chamber (12) and having an outlet cross-section (52) smaller than the inlet cross-section (44).

A spinning position for producing a yarn from a fed fiber band, having an air spinning nozzle with an inlet opening for the fed fiber band and an outlet area with an outlet opening for the spun yarn is provided. In order to provide a spinning position, an air spinning machine and a method which allow for the yarn surface finish to be modified advantageously without the yarn properties deteriorating at the same time, while also avoiding expensive and complex modifications to the spinning position, there is provision for a navel to be arranged in the outlet area behind the outlet opening for modifying the surface finish of the spun yarn.

A spinning position for producing a yarn from a fed fiber band, having an air spinning nozzle with an inlet opening for the fed fiber band and an outlet area with an outlet opening for the spun yarn is provided. In order to provide a spinning position, an air spinning machine and a method which allow for the yarn surface finish to be modified advantageously without the yarn properties deteriorating at the same time, while also avoiding expensive and complex modifications to the spinning position, there is provision for a navel to be arranged in the outlet area behind the outlet opening for modifying the surface finish of the spun yarn.

An apron drafting system for a spinning machine as well as a carrying device for an apron drafting system of a spinning machine, with a first and a second support, each of which is configured for detachably accommodating an apron bridge and/or for rotatably bearing a drawing roller is provided. In order to provide a carrying device for an apron drafting system as well as an apron drafting system of a spinning machine, which enable an apron to be changed quickly, there is provision with the carrying device for the first support to have a base element and a guide section detachably connected to the base element and having a bearing opening for rotatably bearing the drawing roller as well as a first mounting opening for accommodating a first bearing section of the apron bridge.

An apron drafting system for a spinning machine as well as a carrying device for an apron drafting system of a spinning machine, with a first and a second support, each of which is configured for detachably accommodating an apron bridge and/or for rotatably bearing a drawing roller is provided. In order to provide a carrying device for an apron drafting system as well as an apron drafting system of a spinning machine, which enable an apron to be changed quickly, there is provision with the carrying device for the first support to have a base element and a guide section detachably connected to the base element and having a bearing opening for rotatably bearing the drawing roller as well as a first mounting opening for accommodating a first bearing section of the apron bridge.

A half-slide matched device and its application for ultra-smoothly reconstructing yarn hairy structure belong to a textile processing field. According to the half-slide matched device of the present invention, a vortex device static part and a vortex device moving part are matched. In practice, multiple devices are connected in tandem. When yarn moves, the parts of half-slide matched device are closed, for efficiently constraining and utilizing the vortex airflow. A directional jet tube one-directionally stretches hairiness on yarn surface to avoid hairiness random dispersion and entanglement, remove yarn surface impurities. Tandem-connected devices repeatedly superimpose and strengthen the reconstructed ultra-smooth yarn structure. The half-slide matched device can be opened when the yarn breaks, which facilitates splicing and maintenance. The half-slide matched device has a reasonable structure and is very convenient for wide application.