CN111411426B - Fiber guiding element for a spinneret and spinneret provided with said fiber guiding element - Google Patents

Abstract

The invention relates to a fiber guiding element for a spinneret of an air spinning machine, wherein the fiber guiding element functions in the intended use of guiding fiber strands entering the spinneret in a predetermined transport direction, wherein the fiber guiding element has a fiber guiding surface for guiding the fiber strands, and wherein the fiber guiding surface comprises an inlet region, an intermediate region arranged downstream of the inlet region in the transport direction, and an outlet region arranged downstream of the intermediate region in the transport direction. The inlet region and the outlet region are each configured as an untwisted structure with respect to the longitudinal axis of the fiber guiding element, while the intermediate region is at least partially twisted about the longitudinal axis. The invention further relates to a spinneret for an open-end spinning machine as described above, wherein the fiber guiding element is designed such that the rotational direction, the middle region, is twisted at least partially about the longitudinal axis in the rotational direction, preferably in the rotational direction corresponding to the swirling air flow, as seen in the transport direction.

Description

Fiber guiding element for a spinneret and a fiber guiding element equipped with said fiber guiding element spinneret

technical field

The invention relates to the field of textile machinery, in particular to a fiber guiding element for a spinneret of an air spinning machine and a spinneret for an air spinning machine.

Background technique

Please refer to EP 2 009 151 B1 or JP 2773670 B2.

Contents of the invention

The invention relates to a fiber guide element for a spinneret of an air spinning machine, wherein the fiber guide element guides the fibers entering the spinneret in a predetermined conveying direction. In the intended use of the strands, wherein the fiber guide element has a fiber guide surface for guiding the fiber strands, and wherein the fiber guide surface comprises an inlet area, along the mentioned An intermediate area is arranged behind the inlet area in the transport direction and an outlet area is arranged behind the intermediate area in the mentioned transport direction.

Furthermore, a spinneret for an air spinning machine is proposed, which has a fiber guide element for guiding the fiber strands entering the spinneret.

The respective spinnerets are used to produce yarns from elongated fiber strands by means of a swirling air flow generated by air nozzles inside the cyclone chamber of said spinnerets. The fiber strands are provided by a drafting device which homogenizes the fiber strands before entering the spinneret. The inlet of the spinneret is formed or delimited by a fiber guide element for guiding the fibers of the fiber strands entering the spinneret.

After entering the spinneret, the outer fibers of the fiber strand surround the inner fibers (core fibers) in the region of the inlet of the generally spindle-shaped yarn forming element in the cyclone chamber. so that as a result a yarn is produced which can finally be drawn from the cyclone chamber and thus from the spinneret through the drawing channel of the yarn forming element and can be drawn by means of The winder is wound onto the bobbin.

In order to prevent the rotation of the fiber strands from spreading counter to the conveying direction of the fiber strands towards the outside of the spinneret and here in particular in the region of the drafting device, various fiber guiding elements are known. The purpose of these fiber guiding elements is usually to deflect or deflect the fiber strands transversely to the conveying direction, wherein this deflection or deflection acts as a twist stop and prevents the twisting of the fiber strands Rotation spreads from the cyclone chamber to the exterior of the spinneret. In this respect, reference is made purely by way of example to EP 2 009 151 B1 or JP 2773670 B2.

The object of the present invention is to provide a fiber guide element which is distinguished by the fact that a particularly good anti-twist action is achieved while still carefully guiding the fiber strands.

The object is solved by a fiber guiding element or a spinneret equipped with the fiber guiding element having the features of the independent claims.

In principle, the fiber guiding element according to the invention also has a fiber guiding surface for guiding the fiber strands. The fiber guide surface is composed of an inlet region, an intermediate region arranged behind the inlet region in the mentioned conveying direction, and an outlet region arranged behind the intermediate region in the mentioned conveying direction.

In the intended use of the fiber guide element (ie after installation in the spinneret of the pneumatic spinning machine), the fiber strands pass through the mentioned regions successively in the conveying direction. The regions thus together form the mentioned fiber-guiding surface of the fiber-guiding element.

It is now provided according to the invention that the geometry of the intermediate region differs from the geometry of the inlet region and from the geometry of the outlet region in such a way that only the intermediate region (at least partially) surrounds twisted about the longitudinal axis of the fiber guiding element. In contrast to this, both the inlet region and the outlet region are in each case configured untwisted with respect to the longitudinal axis of the fiber guide element.

That is to say, while guiding the fiber strand in the middle region along the twisted surface and therefore on a helical path, the following path—along the path in the inlet region and at the outlet Guiding the fiber strands in the region—correspondingly in a plane or in a convex or concave, preferably groove-like surface (depending on how the inlet region or the outlet region is geometrically formed ).

It is particularly advantageous if the inlet region, the intermediate region and/or the outlet region are at least partially formed by flat, concave, preferably grooved or convexly curved surfaces. If the inlet region is present as a convexly or concavely arched surface, it is advantageous if the corresponding surface section at least partially has a curvature R of magnitude 1 mm or more big. The fibers of the fiber strand are thus deflected transversely to the conveying direction, so that a twist arresting effect is exerted on the fiber strand.

It is also advantageous if the inlet region is twisted relative to the outlet region by an angle γ with a magnitude between 1° and 120°, preferably between 70° and 90°, relative to the longitudinal axis. The angle is the angle enclosed by the dividing line between the inlet region and the outlet region and the dividing line between the intermediate region and the outlet region. The inclination of the central region is preferably constant as seen in the transport direction.

Furthermore, it is advantageous if the intermediate region and the outlet region are separated from each other by a boundary line, wherein the minimum distance A between the boundary line and the longitudinal axis of the fiber guiding element has a value between 0.5 mm and 1.5 mm. The magnitude between mm. However, the distance between the outlet region immediately after the central region and the longitudinal axis should be smaller than the distance A. As a result, a projection is produced in the region of the aforementioned boundary line, by means of which projection the fiber strand is guided as it enters the cyclone chamber. In particular, this projection prevents twisting of the yarn inside the spinneret from possibly propagating against the conveying direction to the outside of the spinneret.

Furthermore, if the outlet region has a first outlet section adjoining the intermediate area in the mentioned direction of transport and a second outlet section adjoining the first outlet section in the mentioned direction of transport , which brings advantages. Preferably, the two outlet sections are designed as planar structures. It is likewise conceivable to configure the first outlet section and/or the second outlet section as a concave or convex surface.

It is also advantageous if the first outlet section and the second outlet section enclose an angle β which has a magnitude between 180° and 160°. In the first mentioned case the two outlet sections lie in a common plane or are tangent to at least one common plane, while in the second case the first outlet section is Two exit sections are sloped. The slope is preferably arranged in such a way that in the region of the transition between the first outlet section and the second outlet section a rise, in particular edges and corners. The fiber strands must pass this elevation on their way into the cyclone chamber, wherein the elevation in turn acts as a twist stop.

If the first outlet section and/or the second outlet section encloses an angle with the longitudinal axis of the fiber guiding element, the magnitude of the angle is between 5° and 25°, preferably 10° Between ° and 20°, advantages ensue in particular. Advantageously, the first outlet section and the second outlet section enclose the same angle with the longitudinal axis. However, it is also conceivable that the respective angles are different, so that the above-mentioned elevations result. In this case, the angle between the longitudinal axis and the first outlet section may also be greater than 25°. In particular magnitude values may be below 70°.

Furthermore, it is advantageous if the outlet region or the first outlet section and/or the second outlet section is at least partially formed by a planar surface. The fibers of the fiber strands are guided in a relatively straight line in this case. In contrast, it is advantageous if the central region has absolutely no flat sections.

It is also advantageous if the second outlet section is formed by a lateral flattening of the otherwise frustoconical end section of the fiber guide element. The flattened portion is preferably a flat surface. The end section of the fiber guiding element is therefore partially truncated-conical, wherein the remaining area of the end section is formed by the flattening. In particular, the plane of the flattened portion intersects its longitudinal axis on the outside of the fiber guiding element.

The partially frusto-conical end section preferably has a covering surface that is delimited by the boundary line of the flattened portion and the pitch circle. In particular, the covering surface should run perpendicular to the longitudinal axis of the fiber guide element. Furthermore, it is advantageous if the pitch circle has a diameter whose magnitude is between 1 mm and 3 mm. Furthermore, the partially frusto-conical end section should have a height whose magnitude is between 0.5 mm and 1.5 mm.

Furthermore, it is advantageous if the partially frusto-conical end section has an outer side which intersects the covering surface of the fiber guide element at an angle α which has a value of 10 ° and 50°, preferably between 20° and 40°. An angle of substantially 30° is preferably present. The mentioned The angle of has an effect on the rotation of the fibers of the fiber strand. In this case, the angular ranges mentioned have proven to be advantageous.

It is advantageous if the fiber guide element has an outer surface of an imaginary cylinder at least partially. The outer surfaces mentioned in particular are the respective rear faces of the inlet region, middle region and outlet region. The imaginary cylinder has an axis of symmetry which preferably runs parallel to or coincident with the longitudinal axis of the fiber guide element. Furthermore, the axis of symmetry should run through the above-mentioned covering area of the end section. Finally, the imaginary cylinder has an outer diameter of a magnitude between 3 mm and 6 mm, preferably between 4 mm and 5 mm.

It is also advantageous if the fiber guide element has a longitudinal extent extending in the direction of the longitudinal axis, which has a magnitude of between 8 mm and 16 mm, preferably between 10 mm and 14 mm. While a short overall length of the fiber guiding element is preferred for reasons of spatial position in the inlet region of the spinneret, a certain length is required for achieving the desired guiding of the fiber strands. Leading and the twist arresting effect associated with it.

It is also advantageous if the inlet region has a longitudinal extension extending in the direction of the longitudinal axis, the longitudinal extension having a magnitude between 2 mm and 7 mm, preferably between 3 mm and 6 mm. The mentioned length should not be lower than 2 mm, because the entry region should cause a gradual lateral deflection of the fiber strand, which for smaller lengths can only be very abrupt of.

It is also advantageous if the intermediate region has a longitudinal extension extending in the direction of the longitudinal axis, the magnitude of which is between 2 mm and 9 mm, preferably between 4 mm and 7 mm. . Values in the mentioned range are sufficient to be able to achieve the above-mentioned angle between the inlet region and the outlet region without the fibers of the fiber strand being too helically deflected.

Furthermore, if the outlet region has a longitudinal extent extending in the direction of the longitudinal axis, the magnitude of which is between 1 mm and 4 mm, preferably between 2 mm and 3 mm, then consequently advantage. The outlet region is preferably inclined in the direction of the longitudinal axis when viewed in the conveying direction, so that a lateral deflection of the fiber strand in the outlet region is reduced in the conveying direction. This reduction of the deflection should also take place gradually, wherein the mentioned longitudinal extensions have proven to be reliable.

Furthermore, a spinneret for an air spinning machine is proposed, wherein the spinneret comprises fiber-guiding elements as is conventional in the prior art. The fiber guide element is arranged in the region of the inlet of the spinneret and guides the fiber strands entering the spinneret.

In order to avoid that the twist, which is applied to the fiber strands inside the cyclone chamber of the spinneret, propagates counter to the conveying direction of the fiber strands to the outside of the spinneret, it is provided according to the invention that The fiber guide element is designed as described above or as described below.

Of course, the spinneret comprises the components or sections required for yarn production, such as, in particular, a yarn forming element with a drawing channel and a plurality of air nozzles, by means of which the spinning Compressed air is added to the cyclone chamber while the head is running.

It is also advantageous if the direction of rotation along which the central region is at least partially twisted about the longitudinal axis corresponds to the direction of rotation of the swirling airflow, viewed in the conveying direction. In other words: relative to the longitudinal axis of the fiber guiding element and viewed in the direction of transport of the fiber strand in the region of the fiber strand inlet of the spinneret, the fiber guiding element The middle region has the same direction of rotation (clockwise or counterclockwise) as the swirling air flow generated inside the cyclone chamber by the air nozzles. As a result, the fiber strands are rotated around the longitudinal axis in a direction corresponding to the direction of rotation of the swirling air by the intermediate region when entering the spinneret. The direction of rotation of the swirling air is in turn determined by the orientation of the air nozzles.

Description of drawings

Additional advantages of the present invention are illustrated in the following examples. The accompanying drawings schematically show the following respectively:

Figure 1 is a partially cutaway section of a spinneret according to the invention, and

2 to 5 are different views of a fiber guiding element according to the invention.

FIG. 6 is a selected section of another fiber guiding element according to the invention.

Detailed ways

FIG. 1 shows a section of a spinneret 2 of an air spinning machine. In the spinneret 2, only the inlet region for the fiber strand 3 and the subsequent cyclone chamber along the predetermined conveying direction of the fiber strand 3 are shown, which are important for the understanding of the invention. Part of 16.

In principle, a spindle-shaped thread forming element 13 known from the prior art protrudes into the cyclone chamber 16 . Furthermore, air nozzles 14 are shown, via which compressed air is introduced into the spinneret 2 during operation of the spinneret 2 , wherein the air nozzles 14 are arranged such that the yarn forming element 13 Vortex airflow is generated in the area. The outer fibers of the fiber strands 3 entering the spinneret 2 are wound around the inner fibers by the vortex air flow, so that in the region of the yarn forming element 13 a yarn 17 is produced, which The thread can finally be drawn out of the spinneret 6 through the pulling channel 15 .

In order to prevent the rotation of the yarn 17 from propagating against the conveying direction T to the outside of the spinneret 2 , the spinneret 2 has a fiber-guiding element 1 designed according to the invention, which can, for example, It is fixed in the spinneret 2 by means of a positive or non-positive connection.

The fiber guiding element 1 itself is shown in detail in FIGS. 2 to 5 , of which FIG. 5 shows a plan view of the fiber guiding element 1 (relative to FIG. 2 , that is to say viewed from above).

As can be seen from the figures, the fiber guiding element 1 has a fiber guiding surface along which the fiber strands 3 are guided as they enter the spinneret 2 .

According to the invention, this fiber-guiding surface consists of three regions. In particular, the fiber-guiding element 1 has an inlet region 4 , with which the fiber strand 3 first comes into contact with the inlet region 4 when the fiber strand 3 is introduced into the spinneret 2 along a defined conveying direction T. touch. Furthermore, there is an intermediate region 5 which adjoins the inlet region 4 along the conveying direction T and finally transforms into an outlet region 6 through which the fiber strands 3 pass before they enter the cyclone chamber 16 area 6.

In this respect, the invention also provides that only the central region 5 is formed by a surface twisted with respect to the longitudinal axis L of the fiber guide element 1 . As a result, the fibers are guided on an essentially helical or helical path along the central region 5 . In contrast, the inlet region 4 and the outlet region 6 , which is separated from the intermediate region 5 by the dividing line 7 , are then formed by separate surface sections which are either designed as planar structures or It is a structure protruding in the direction of the fiber strands 3 . The mentioned minimum distance between the boundary line 7 and the longitudinal axis L of the fiber guiding element 1 is marked with the reference symbol A. In FIG.

While the outlet region 6 is formed by a single surface, it is particularly advantageous if it is composed of a first outlet section 8 and a second outlet section 9 following along the transport direction T. While the first outlet section 8 can be formed by a section of the essentially cylindrical base body of the fiber guide element 1 , it is advantageous if the second outlet section 9 is configured as the fiber guide element 1 . Flattening 10 of otherwise frustoconical end section 11 of lead element 1 .

In view of the inlet region 4, it is advantageous if the inlet region is not formed by a flat surface but by a surface that is convexly curved in the direction of the fiber strand 3, wherein the radius of curvature is denoted by the reference symbol R. marked out.

In particular, the fiber-guiding element 1 can be produced from an initially cylindrical base body, wherein sections of the base body are cut away in such a way that the mentioned regions 4 , 5 with the fiber-guiding surfaces are produced. and 6 as well as the final shape of the partially frusto-conical end section 11 . Accordingly, the fiber guiding element 1 can have an outer surface 12 on an imaginary cylinder with a diameter D2 which adjoins the respective ones of the mentioned regions 4 , 5 and 6 in the circumferential direction. .

The axis of symmetry of the imaginary cylinder also coincides with the aforementioned longitudinal axis L of the fiber guide element 1 .

The frusto-conical end section 11 also has a covering surface 18 which preferably extends perpendicularly to the longitudinal axis L of the fiber-guiding surface 1 .

The above-mentioned dimensions and angles can also be seen in particular from FIGS. 2 and 5 , since they are not shown in all figures for reasons of clarity.

The fiber guiding element 1 therefore has a longitudinal extent I extending in the direction of the longitudinal axis L which in principle corresponds to the overall length of the fiber guiding element 1 .

Likewise, the inlet region 4 has a defined longitudinal extent II. The longitudinal extent of the central region 5 is provided with the reference numeral III. Finally, the outlet region 6 also has a certain longitudinal extent, which is indicated by the reference numeral IV.

The aforementioned end section 11 of the fiber guiding element 1 in the form of a laterally flattened truncated cone has a height designated by the letter H, while the end section The covering surface 18 of the segment 11 then has a diameter D1.

Finally, with regard to the angles mentioned in the general description, reference is made to Figures 2 and 5 . These figures show the angle α between the outer side of the partially frusto-conical end section 11 and the covering surface 18 of the fiber guide element 1 , the first outlet section 8 and the The angle β between the second outlet section 9, the angle σ between the longitudinal axis L and the first outlet section 8 or the second outlet section 9 and the inlet area 4 and the The angle γ between the outlet regions 6 is produced by the twisting of the intermediate section 5 .

For the magnitudes of the dimensions and angles mentioned, reference is made to the general description.

It should also be pointed out that the first outlet section 8 can be inclined at an angle between 0° and 20° relative to the second outlet section 9 , so that the mentioned sections 8 , 9 do not necessarily lie in a common in the plane.

Finally, FIG. 6 shows the outlet region of another embodiment of the fiber guiding element 1 according to the invention (partially cut away below). As can be seen from this figure, the outlet region 6 can be formed at least partially by a concave, in the exemplary embodiment shown, groove-like surface. In addition or as an alternative, such a shaping can of course also be realized in the inlet region 4 or in the middle region 5 .

The invention is not limited to the shown and described exemplary embodiment. Modifications within the scope of the claims are equally possible as any combination of the described features, even if the features are shown in different parts of the description or in the claims or in different exemplary embodiments and obtained description, provided that no contradiction arises with respect to the theory of the independent claims.

List of reference signs:

1 Fiber guiding element

2 spinnerets

3 fiber strands

4 Entry area of the fiber guide surface

5 The middle area of the fiber guide surface

6 Exit area of the fiber guide surface

7 Demarcation line between the middle area and the exit area

8The first exit section

9Second Exit Section

10 flattening department

11 partly frusto-conical end section

12 on the outer surface of the cylinder

13 Yarn forming elements

14 air nozzle

15 pulling channels

16 cyclone chamber

17 yarns

18 Coverage

The longitudinal extent of the I fiber guiding element extending in the direction of the longitudinal axis

II The longitudinal extent of the inlet area extending in the direction of the longitudinal axis

III The longitudinal extent of the middle zone extending in the direction of the longitudinal axis

The longitudinal extent of the IV exit region extending in the direction of the longitudinal axis

A Minimum distance between the dividing line separating the middle area from the outlet area and the longitudinal axis of the fiber guiding element

D1 Diameter of the covering surface of the end section of the fiber guiding element

D2 Outer diameter of the cylinder on which at least a part of the outer surface of the fiber guiding element lies

Height of the partially frustoconical end section of the H fiber guide element

L longitudinal axis

Delivery direction of T fiber strands

Bending radius of R entrance area

α is partly the angle between the outer side of the frustoconical end section 11 and the covering surface 18 of the fiber guide element

β Angle between the first outlet section and the second outlet section

σ Angle between the longitudinal axis and the first outlet section and/or the second outlet section

γ the angle between the entry area and the exit area

Claims (28)

1. A fiber guiding element (1) for a spinneret (2) of an air spinning machine, wherein the fiber guiding element (1) is guided into the to the intended use of the fiber strands (3) in said spinneret (2), - wherein the fiber guiding element (1) has a fiber guiding surface for guiding the fiber strands (3), and - wherein said fiber guiding surface comprises an inlet area (4), an intermediate area (5) arranged behind said inlet area (4) along said conveying direction (T) and along said conveying direction (T) an outlet area (6) arranged behind said intermediate area (5), The inlet region ( 4 ) and the outlet region ( 6 ) are each configured unrotated with respect to the longitudinal axis (L) of the fiber guide element ( 1 ), while the central region ( 5 ) is twisted at least partially about said longitudinal axis (L), It is characterized in that, The inlet region ( 4 ) is twisted relative to the outlet region ( 6 ) by an angle γ about the longitudinal axis (L), the angle γ having a magnitude between 1° and 120°. 2 . The fiber guiding element ( 1 ) according to claim 1 , characterized in that the inlet region ( 4 ) is twisted relative to the outlet region ( 6 ) by an angle γ about the longitudinal axis (L), The magnitude of this angle γ is between 70° and 90°. 3. Fiber guiding element (1) according to claim 1 or 2, characterized in that the inlet region (4), the intermediate region (5) and/or the outlet region (6) are at least partially A ground is formed by a flat, concave, or convexly arched surface. 4. The fiber guiding element (1) according to claim 3, characterized in that the inlet region (4), the intermediate region (5) and/or the outlet region (6) pass at least partially through grooved surface. 5. The fiber guiding element (1 ) according to claim 3, characterized in that the inlet region (4) at least partially has a bending radius R of magnitude 1 mm or more. 6. Fiber guiding element (1) according to claim 1 or 2, characterized in that the intermediate area (5) and the outlet area (6) are separated from each other by a dividing line (7), wherein The minimum distance A between the boundary line ( 7 ) and the longitudinal axis (L) of the fiber guiding element ( 1 ) has a magnitude between 0.5 mm and 1.5 mm. 7. Fiber guiding element (1) according to claim 1 or 2, characterized in that the outlet area (6) has a A first outlet section (8) and a second outlet section (9) adjoining the first outlet section (8) along the conveying direction (T), wherein the first outlet section (8) and Said second outlet section (9) encloses an angle β whose magnitude is between 180° and 160°. 8. The fiber guiding element (1) according to claim 7, characterized in that the first outlet section (8) and/or the second outlet section (9) are connected to the fiber guiding The longitudinal axis (L) of the element ( 1 ) encloses an angle σ whose magnitude is between 5° and 25°. 9. The fiber guiding element (1 ) according to claim 8, characterized in that the magnitude of the angle σ is between 10° and 20°. 10. The fiber guide element (1) according to claim 1 or 2, characterized in that the outlet region (6) is at least partially formed by a planar surface. 11. Fiber guiding element (1) according to claim 7, characterized in that the first outlet section (8) and/or the second outlet section (9) passes at least partially through a flat surface to form. 12 . The fiber guiding element ( 1 ) according to claim 7 , characterized in that the second outlet section ( 9 ) passes through an otherwise frustoconical section of the fiber guiding element ( 1 ). 13 . The lateral flattening ( 10 ) of the end section ( 11 ) is formed. 13 . The fiber guiding element ( 1 ) according to claim 12 , characterized in that the otherwise frusto-conical end section ( 11 ) has a covering surface ( 18 ) through which the The boundary line of the flattened part (10) and the pitch circle, wherein the pitch circle has a diameter D1, the magnitude of the diameter D1 is between 1 mm and 3 mm, and/or wherein said in other The frusto-conical end section ( 11 ) has a height H of magnitude between 0.5 mm and 1.5 mm. 14 . The fiber guiding element ( 1 ) according to claim 12 , characterized in that the otherwise frustoconical end section ( 11 ) has an outer side at an angle α to The covering surfaces ( 18 ) of the fiber guiding elements ( 1 ) intersect, the angle α having a magnitude between 10° and 50°. 15. Fiber guiding element (1 ) according to claim 14, characterized in that the angle α has a magnitude between 20° and 40°. 16. The fiber guiding element (1) according to claim 1 or 2, characterized in that the fiber guiding element (1) at least partially has an outer surface (12) on a cylinder, wherein the The axis of symmetry of the cylinder runs parallel to or coincident with the longitudinal axis (L) of the fiber guide element ( 1 ). 17. The fiber guiding element (1 ) according to claim 16, characterized in that the cylinder has an outer diameter D2 having a magnitude between 3 mm and 6 mm. 18. The fiber guiding element (1 ) according to claim 17, characterized in that the outer diameter D2 has a magnitude between 4 mm and 5 mm. 19. The fiber guiding element (1) according to claim 1 or 2, characterized in that the fiber guiding element (1) has a longitudinal extent I extending in the direction of the longitudinal axis (L) , the magnitude of the longitudinal extension I is between 8 mm and 16 mm. 20. The fiber guiding element (1) according to claim 19, characterized in that the magnitude of the longitudinal extension I is between 10 mm and 14 mm. 21. The fiber guiding element (1) according to claim 1 or 2, characterized in that the inlet region (4) has a longitudinal extent II extending in the direction of the longitudinal axis (L), the The magnitude of the longitudinal extension II is between 2 mm and 7 mm. 22. The fiber guiding element (1) according to claim 21, characterized in that the magnitude of the longitudinal extension II is between 3 mm and 6 mm. 23. The fiber guiding element (1) according to claim 1 or 2, characterized in that the middle region (5) has a longitudinal extent III extending in the direction of the longitudinal axis (L), the The magnitude of the longitudinal extension III is between 2 mm and 9 mm. 24. The fiber guiding element (1 ) according to claim 23, characterized in that the magnitude of the longitudinal extension III is between 4 mm and 7 mm. 25. The fiber guiding element (1) according to claim 1 or 2, characterized in that the outlet region (6) has a longitudinal extent IV extending in the direction of the longitudinal axis (L), the The magnitude of the longitudinal extension IV is between 1 mm and 4 mm. 26. The fiber guiding element (1 ) according to claim 25, characterized in that the magnitude of the longitudinal extension IV is between 2 mm and 3 mm. 27. A spinneret (2) for an air spinning machine, with a fiber guide for guiding the fiber strands (3) entering the spinneret (2) along the conveying direction (T) guiding element (1) and having an air nozzle (14) for generating a swirling air flow inside the spinneret (2), characterized in that the fiber guiding element (1) is according to claims 1 to 26 any one of them. 28. The spinneret (2) according to claim 27, wherein the intermediate region (5) corresponds at least partially to the direction of rotation of the vortex air stream viewed along the conveying direction (T) rotate around the longitudinal axis (L).

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