Spinning station of an air jet spinning machine

Abstract

The invention relates to a spinning station (22) of an air jet spinning machine, which is used to produce a yarn (1) from a fiber sliver (2) comprising fibers, wherein the spinning station (22) has a vortex chamber (3) having an inlet opening (4) for the fiber sliver (2), which enters the vortex chamber (3) in a conveying direction during operation of the air jet spinning machine, and the spinning station has a yarn-forming element (5) that extends at least partially into the vortex chamber (3), wherein the spinning station (22) has air nozzles (6) directed into the vortex chamber (3), which air nozzles open into the vortex chamber (3) in the area of a wall (21) surrounding the vortex chamber (3) and by means of which air nozzles air can be introduced into the vortex chamber (3) in a specified direction of rotation in order to give a rotation in said direction of rotation to the fiber sliver (2) in the area of an inlet opening (7) of the yarn-forming element (5), wherein the yarn-forming element (5) has an extraction channel (8), through which the yarn (1) can be extracted from the vortex chamber (3), wherein a guiding assembly (9) for guiding the fiber sliver (2) is arranged in the area of the inlet opening (4) of the vortex chamber (3), and wherein the guiding assembly (9) comprises at least two guiding sections (10) arranged at a distance from each other, the mutual distance of which decreases in said conveying direction at least in some segments. According to the invention, the guiding assembly (9) also has at least one center guiding element (11), which extends at least partially between the guiding sections (10) in a cross-section extending perpendicularly to the longitudinal axis (12) of the extraction channel (8) and causes a deflection of the fibers of the fiber sliver (2) perpendicular to a longitudinal axis (12) of the extraction channel (8).

Description

technical field [0001] The invention relates to a spinning station of an air-jet spinning machine for producing yarn from a fiber composite of fibers, wherein the spinning station has a turbulence chamber with a device for making the fiber composite An inlet port into the turbulence chamber in the conveying direction during operation of the air-jet spinning machine, and the spinning station also has a yarn forming element extending at least partially into the turbulence chamber, wherein the spinning station has leading into the turbulence chamber air nozzles which open into the turbulence chamber in the region surrounding the wall of the turbulence chamber and can be introduced into the turbulence chamber by air in the predetermined direction of twisting in order to rotate the yarn along said direction of twisting Twisting is applied to the fiber composite in the region of the inlet mouth of the thread forming element, wherein the thread forming element has a withdrawal channe...

AI Technical Summary

Problems solved by technology

In other words, if the twist is to be conveyed in the opposite direction to the conveying direction, the associated counter-twisting of the fiber strands would necessarily result in a reduction of the desired entangled fibers and / or in the drafting device upstream of the turbulence chamber. Reduced drawability of fiber strands in the zone

[0005] The twist-retaining elements acting on the fiber strands from the outside and known from the prior art limit the corresponding transmission of the twist, but on the other hand the reduction of the entangled fibers must generally be accepted (see especially the aforementioned EP 0 990 719 B1)

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