FIBER TAPE COMPRESSOR FOR AN OPEN-END SPINNING DEVICE AND OPEN-END SPINNING DEVICE

Description

[0001] The present invention relates to a fiber tape compactor for an open-end spinning machine with a dissolution roller and a feeding device arranged laterally adjacent to the dissolution roller, wherein the fiber tape compactor has a fiber tape channel comprising an inlet section with a first fiber tape guide surface, an outlet section with a second fiber tape guide surface, and an outlet opening. A deflection section is arranged between the inlet section and the outlet section, in which a fiber tape being fed to the dissolution roller can be deflected. The fiber tape channel has a side wall facing the machine and a side wall facing away from the machine. Furthermore, the present invention relates to a corresponding open-end spinning machine with a dissolution roller and a feeding device arranged laterally adjacent to the dissolution roller, comprising a feeding roller, a feeding table, and a fiber tape compactor.

[0002] Open-end spinning devices and fiber strip compactors are known in various designs from the prior art. For example, in open-end spinning devices, it is known to feed a fiber strip to a decoiling device by means of a feeding device. The feeding device includes a feeding roller against which a feeding table is pressed by spring force. A fiber strip compactor is usually positioned upstream of the feeding roller, which feeds the fiber strip to the feeding roller and simultaneously compacts it to facilitate feeding through the feed roller. In open-end spinning devices where the decoiling rollers point forward and thus the decoiling roller axis points towards the center of the machine, the fiber strip must be fed to the decoiling roller parallel to the machine.This means that, unlike open-end spinning devices where the unwinding roller axis extends parallel to the machine's longitudinal axis, the fiber strip coming from the fiber strip can is initially guided essentially vertically upwards and then has to be deflected by up to 90°.

[0003] Such an open-end spinning device is described, for example, in DE 195 39 629 A1. The document proposes to design the transition between a fiber guide surface of the infeed section and the fiber guide surface of the compaction section without a change in the direction of curvature, and furthermore to round off a fiber guide surface in the transition area. This is intended to minimize the angular deflection of the fiber strip and ensure a uniform infeed of the fiber strip.

[0004] US Patent 4,481,765 describes a fiber belt compactor with two deflection sections. This is intended to create an overall helical guide surface for the fiber belt. This is intended to prevent belt twisting and thereby reduce the number of grain variations.

[0005] DE 40 22 963 A1 also discloses a fiber belt compactor for an open-end spinning device with two deflection sections. The second deflection section is designed in the form of a conical ramp. This prevents unwanted fiber and dirt accumulation and also prevents the fiber belt from folding at the inlet to the feed hopper.

[0006] The object of the present invention is therefore to propose a fiber tape compactor and an open-end spinning device with such a fiber tape compactor that avoids negative influences on the fiber tape and increases operational reliability.

[0007] The problem is solved using the characteristics of independent claims.

[0008] A fiber strip compactor for an open-end spinning device with a dissolving roller and a feeding device arranged laterally next to the dissolving roller has a fiber strip channel comprising an inlet section with a first fiber strip guide surface, an outlet section with a second fiber strip guide surface, and an outlet opening. A deflection section is arranged between the inlet section and the outlet section, in which a fiber strip fed to the dissolving roller can be deflected. The fiber strip channel further comprises a side wall facing the machine and a side wall facing away from the machine.

[0009] According to the invention, a deflection edge is arranged in the deflection area, which is inclined relative to the second fiber belt guide surface in the direction of the machine-facing side wall. The deflection edge is thus designed to slope downwards in the direction of the machine-facing side wall, so that the fiber belt is not only deflected at the deflection edge in the direction of the longitudinal axis of the machine, but is also inclined at a specific angle.

[0010] As described at the outset, in open-end spinning devices where the unwinding roller axis points towards the center of the machine, the fiber sliver must be deflected by up to 90° in the fiber sliver compactor. The applicant has now discovered that the fiber sliver tends to change its cross-sectional geometry in the area of ​​deflection, and that negative effects on operational reliability and damage to the fiber sliver cannot be ruled out as a result.

[0011] By incorporating an inclined deflection edge in the deflection area, the fiber tape is subjected to significantly less stress on its cross-sectional geometry in the entry area. This also ensures more universal applicability, eliminating the need for different designs for different fiber tapes.

[0012] Furthermore, this allows unavoidable influences on the fiber tape to occur gradually. This makes it possible, for example, to reduce the surface finish of the inlet funnel without negatively impacting the fiber tape. This enables more cost-effective component manufacturing.

[0013] The same advantages can also be achieved with an open-end spinning device comprising a dissolving roller and a feeding device arranged laterally next to the dissolving roller, comprising a feeding roller, a feeding table, and such a fiber belt compactor. Therefore, protection is also claimed for the open-end spinning device with such a fiber belt compactor.

[0014] It is advantageous if the deflection edge has a radius between 1 mm and 10 mm, preferably between 2 mm and 7 mm, and particularly preferably between 2 mm and 5 mm. In contrast to the previous deflection area, the deflection edge has a rather small radius and is therefore comparatively sharp-edged. It has been shown that a comparatively sharper deflection reduces negative effects on the spinning process and operational reliability.

[0015] It is particularly advantageous if the deflection edge, relative to a side view of the fiber belt compactor, has an angle between 25° and 60°, preferably between 35° and 50°, and most preferably between 40° and 50°, relative to a lower edge of the outlet opening. Such an angle of the deflection edge, which slopes relatively steeply towards the machine-facing side wall, has proven to be particularly effective. Similarly, in the open-end spinning device, it is advantageous if the deflection edge, relative to a side view of the fiber belt compactor, has an angle between 25° and 60°, preferably between 35° and 50°, and most preferably between 40° and 50°, relative to a running axis of the dissolving roller.

[0016] The side view of the fiber belt compressor corresponds to a view directly onto the edges of the side walls or directly onto the cross-section of the outlet opening. The front view of the fiber belt compressor thus corresponds to the view in which it is visible when installed on the front of the open-end spinning device. In other words, the front view of the fiber belt compressor corresponds to a direct view of the side wall facing away from the machine.

[0017] The cross-section of the outlet opening extends parallel to a running axis of the dissolving roller and thus also parallel to a running axis of the feed roller. Therefore, the orientation of the lower edge of the outlet opening is also parallel to the running axis of the dissolving roller.

[0018] According to the invention, in the fiber belt compactor, the deflecting edge is arranged at an angle to the lower edge of the exit opening. This further reduces the negative effects on the fiber belt due to changes in geometry. Similarly, in the open-end spinning device, it is advantageous if the deflecting edge is arranged at an angle to the running axis of the dissipating roller.

[0019] If the deflection edge is arranged at an angle to the lower edge of the discharge opening or the running axis of the dissolving roller, it is advantageous if the deflection edge, viewed from a top view of the fiber belt compactor, has an angle between -30° and 30°, preferably between -10° and 10°, and particularly preferably between -5° and 5°, relative to the lower edge. This allows the fiber belt to be supported across its entire width and, in particular, further improves the alignment of the fiber belt at the deflection edge rather than at the inlet section of the fiber belt compactor. Especially with a small, positive angle between 0° and 5°, which deflects the fiber belt slightly away from the machine, negative effects on the spinning process and influences on the fiber belt can be minimized.In the open-end spinning device, it is advantageous if the deflecting edge, viewed from a top view of the fiber belt compactor, has an angle between -30° and 30°, preferably between -10° and 10°, and particularly preferably between -5° and 5°, relative to the running axis of the dissipating roller. However, an arrangement is also conceivable in which the deflecting edge, viewed from a top view of the fiber belt compactor, has an angle of 0° relative to the lower edge. In this case, the deflecting edge would not be skewed, but rather parallel to the lower edge in the top view.

[0020] Further advantages arise if the upper edge of the deflecting edge has a height between -1 mm and 16 mm, preferably between 2 mm and 9 mm, and particularly preferably between 4 mm and 7 mm, relative to the lower edge of the outlet opening and its center. The center of the outlet opening corresponds to the vertical line of symmetry of the outlet opening's cross-section, relative to the installation position of the fiber belt compactor. The height of the deflecting edge is crucial for the fiber belt wrapping around it and thus for the fiber belt guidance. The effect of the inclined deflecting edge can be adjusted across the width of the fiber belt by changing its height. For example, if the upper edge of the deflecting edge is at 0 mm or less relative to the lower edge of the outlet opening at its center, the deflecting edge will have a greater effect in the area away from the machine than in the area towards the machine.

[0021] In the open-end spinning device, it is advantageous if the upper edge of the deflecting edge has a height between -1 mm and 15 mm, preferably between 1 mm and 8 mm, and particularly preferably between 3 mm and 7 mm, relative to the lower radii of the feed roller and the center of an outlet opening of the fiber belt compactor. The lower radii of the feed roller are thus slightly higher than the lower edge of the outlet opening with respect to the upper edge of the deflecting edge.

[0022] It is also advantageous if the deflection edge is integrally molded onto the fiber belt compressor. This allows for particularly gentle deflection. The fiber belt compressor can preferably be made of plastic for this purpose.

[0023] Another design offers advantages if the deflection edge is formed by a deflection pin, preferably one that can be inserted into the side walls of the fiber belt compactor. Furthermore, this design allows the shape and arrangement of the deflection edge to be individually adapted to the specific characteristics of the machine. A steel pin is preferably used for this purpose.

[0024] In the open-end spinning device, it is also advantageous if the deflection edge, relative to the center of the fiber strip channel, has a distance of between 20 mm and 80 mm, preferably between 25 mm and 50 mm, and particularly preferably between 30 mm and 45 mm from a clamping line between the feed table and the feed roller. Such a distance to the clamping line aids in the alignment of the fiber strip.

[0025] Further advantages of the invention are described in the following exemplary embodiments. These show, schematically: Figure 1A schematic, partially cut-out side view of a workstation on an open-end spinning machine in an overview illustration. Figure 2 an open-end spinning device with a dissolving roller and a feeding device with a feeding roller, a feeding table and a fiber belt compactor in a front view, Figure 3 a schematic side view of a fiber belt compressor with a deflecting edge, Figure 4 a schematic top view of a fiber belt compressor with a deflecting edge, Figure 5 a schematic, cutaway rear view of a fiber belt compressor with a deflecting edge, Figure 6 a schematic, cutaway rear view of a fiber belt compactor with a deflecting edge in a state installed in an open-end spinning device, Figure 7 a perspective view of a fiber belt compactor with a pen inserted as a deflection edge, as well as Figure 8A perspective view of a fiber belt compressor with a one-piece molded deflection edge.

[0026] In the following description of the exemplary embodiments, identical features, or features that are at least comparable in their design and / or function, are designated with the same reference numerals. Furthermore, these features are only explained in detail upon their first mention, while subsequent exemplary embodiments focus solely on the differences compared to those already described. For the sake of clarity, often only one or a few identical components or features are labeled.

[0027] Figure 1Figure 2 shows a schematic, partially cutaway side view of a work station 2 of an open-end spinning machine. Work station 2 comprises a feeder 3 for supplying a fiber sliver 11, a disentanglement roller 7 for disentangling the fiber sliver 11, and an open-end spinning unit 1 for spinning the fiber sliver 11 into yarn 15. The fiber sliver 11 is fed to the open-end spinning unit 1 by means of the feeder 3. The feeder 3 includes a feeder roller 4 rotating about a pivot 14, which feeds the fiber sliver to the disentanglement roller 7. The disentanglement roller 7 rotates about its pivot 12 and disentangles the fiber sliver 11 into individual fibers. From the disentanglement roller 7, the individual fibers are fed to a spinning element 13 of the open-end spinning unit 1. The spun yarn 15 is then drawn off by means of a take-up device 8 and wound onto a spool 10 by means of a winding device 9.

[0028] Figure 2Figure 1 shows an open-end spinning device 1 with a dissolving roller 7 and a feeding device 3 with a feeding roller 4, a feeding table 5 and a fiber belt compactor 6 in a front view. As the Figure 2 The fiber strip 11 (not shown here) is fed to the open-end spinning device 1 from below in a substantially vertical direction from a fiber strip container (also not shown here). To then feed it laterally and substantially horizontally to the feed roller 4 and the unwind roller 7, the fiber strip 11 must be deflected by a larger angle of up to 90°. This deflection takes place in the fiber strip compactor 6. In this case, the deflection angle is less than 90°. Typically, a deflection angle between 60° and 120° is achieved by the deflection section 23.

[0029] The fiber tape compactor 6 has a fiber tape channel 16 with an inlet section 17, into which the fiber tape enters from the fiber tape can, and an outlet section 19, in which the fiber tape 11 (not shown here) is compacted. Between the inlet section 17 and the outlet section 19 is the deflection section 23, which, according to the prior art, was provided with a large radius to deflect the fiber tape 11 as gently as possible. The fiber guide channel 16 has a first fiber tape guide surface 18 in the area of ​​the inlet section 17 and a second fiber tape guide surface 20 in the area of ​​the outlet section 19, which guide the fiber tape 11. The fiber belt guide surfaces 18,20 are limited in their lateral areas by a machine-facing side wall 24 (not visible here) and the machine-away side wall 25 (visible here), which supports the lateral guidance of the fiber belt 11 (not shown).The fiber belt compactor 6 also has a fastening section 28 by means of which it can be attached to the dining table 5.

[0030] The compression of the fiber strip 11 within the exit section 19 also gives the fiber strip 11 a profile, which facilitates the drawing of the fiber strip 11 (not shown here) through the feed roller 4. The fiber strip 11 leaves the fiber strip compactor 6 through the outlet opening 21 located at the end of the exit section 19 and passes over the feed table 5 into the intake area of ​​the feed roller 4 and finally into the clamping line 30 between the spring-loaded feed table 5 and the feed roller 4.

[0031] Again Figure 2In the deflection area 23, a deflection edge 26 is arranged so that the fiber tape remains removable. In this example, the deflection edge 26 has a comparatively small radius R between 1 mm and 10 mm and is therefore relatively sharp-edged compared to the deflection area 23 of the prior art, which is rounded with a large radius. The deflection edge 26 causes the incoming fiber tape 11 (not shown here) to no longer be oriented solely by the fiber tape guide surface 18 of the inlet section 17, but to align itself partially or even completely with the deflection edge 26. This provides the fiber tape 11 with precise guidance in the deflection area 23. Furthermore, the deflection edge 26 aligns it favorably with respect to its elliptical cross-section relative to the outlet opening 21 and the clamping line 30.

[0032] The fiber tape 11 is thereby fed in the form of a "lying ellipse", which helps to ensure a gentle introduction into the spinning unit.

[0033] Essential for a favorable alignment of the fiber strip 11 is that the deflecting edge 26 is inclined towards the machine or towards the open-end spinning device 1, thus deflecting the fiber strip 11 a short distance towards the machine. This is particularly important in Figure 3 recognizable.

[0034] Figure 3Figure 1 shows a schematic side view of a fiber belt compactor 6 with a deflecting edge 26. The side view is taken from the fiber belt feed side, looking towards the outlet opening 21. Both the machine-facing side wall 24 and the machine-away side wall 25 are clearly visible in the illustration. The fiber belt channel 16, the first fiber belt guide surface 18 in the inlet section 17 (not labeled here), and the second fiber belt guide surface 20 in the outlet section 19 (not labeled here) are also visible. The feed roller 4 with its axis of travel 14 is also visible behind the outlet opening 21. The center of the outlet opening 21, or the lower edge 22 of the outlet opening 21, is indicated by a dashed line.

[0035] As can be seen in the figure, the deflecting edge 26 is inclined relative to the second fiber belt guide surface 20 and thus also relative to the lower edge 22 of the outlet opening 21 in the direction of the machine-facing side wall 24, or slopes down towards it. This inclined deflecting edge 26 brings the fiber belt 11 (not shown here) into a "horizontal" orientation as it enters the fiber belt compactor 6, ensuring smooth sliding over the deflecting edge 26. In other words, the deflecting edge 26 has a first angle α relative to the lower edge 22 of the outlet opening 21. Preferably, the first angle α is between 25° and 60°. In the present example, the angle α is approximately 45°. Likewise, the radius R (not shown here) of the deflecting edge 26 is approximately 3 mm in this example and is therefore relatively sharp-edged.

[0036] Figure 4Figure 1 shows a schematic top view of a fiber strip compactor 6 with a deflecting edge 26. The view is from above, looking down at the feed roller 4 and the second fiber strip guide surface 20. The machine-facing side wall 24 and the machine-away side wall 25 are also visible. The fiber strip channel 16 is also shown, although only the exit section 19 (not labeled here) with the second fiber strip guide surface 20 and the exit opening 21 is visible. The first fiber strip guide surface 18 lies below the deflecting section 23 and the deflecting edge 26 and is therefore not visible. The feed table 5 is also visible below the exit section 19. Above the feed table 5, the feed roller 4 with its axis of travel 14 is again shown. Furthermore, the center of the outlet opening 21 or the lower edge 22 (not visible here) of the outlet opening 21 is also shown here with a dashed line.In addition, the clamping line 30 between the feed roller 4 and the feed table 5 is also shown in the present illustration.

[0037] As can be seen in the figure, the deflecting edge 26 has a second angle β relative to the axis 14 of the feed roller 4 and thus also relative to the lower edge 22 of the outlet opening 21 (not visible here). Since the axes 14 and 12 of the feed roller 4 and the dissolving roller 7 are parallel to each other, the deflecting edge also has a second angle β relative to the axis 12 of the dissolving roller 7. This inclination of the deflecting edge 26 can influence the effect of the deflecting edge 26 and the first angle α of the deflecting edge 26. For example, a positive second angle β, which also inclines the deflecting edge 26 in this direction towards the machine or the machine-facing side wall 24, can increase the effect of the deflecting edge 26. Conversely, a negative angle β, which inclines the deflecting edge 26 away from the machine, can decrease its effect.As the deflection edge 26 inclines towards the side wall 24 facing away from the machine, the effect of the deflection edge 26 and the first angle α is reduced. The second angle β is preferably 30°. In the present example, the second angle β is approximately 5°. Furthermore, the distance A of the deflection edge 26 to a clamping line 30 between the feed table 5 and the feed roller 4, relative to the center of the fiber strip channel 16, is between 20 mm and 80 mm. In the present example, the distance A is approximately 40 mm.

[0038] Figure 5Figure 1 shows a schematic, cutaway rear view of a fiber belt compactor 6 with a deflecting edge 26. The rear view is taken from the machine's perspective, specifically from the machine-facing side wall 24 (not visible here) looking towards the machine-away side wall 25. The fiber belt channel 16 is again visible, although only the outlet section 19 (unlabeled) with the second fiber belt guide surface 20 and the outlet opening 21 is shown. The inlet section 17 with the first fiber belt guide surface 18 lies behind the section plane and is therefore not visible. The deflecting edge 26 with its upper edge 27 is again visible in the deflection area 23. The mounting section 28 is also visible.

[0039] As can be seen from the figure, the upper edge 27 of the deflecting edge 26 points towards the lower edge 22 of the outlet opening 21 with respect to a center of the outlet opening 21, which is located in Figure 3As can be seen, a first height dimension h1 exists between -1 mm and 16 mm. This height dimension h1 is crucial for the wrapping of the deflecting edge 26 by the fiber band 11 (not shown) and thus for the effect of the deflecting edge 26. In the example shown, the height dimension h1 is approximately 6 mm.

[0040] Figure 6 Figure 1 shows a schematic, cutaway rear view of a fiber belt compactor 6 with a deflecting edge 26 in a state installed in an open-end spinning device 1. The representation corresponds to that of the Figure 5 , so that in the following only the differences to Figure 5 This will be discussed in more detail. Besides the fiber belt compactor 6, the feeding table 5, the feeding roller 4 with its running axis 14, and the dissolving roller 7 are also shown here. In contrast to the illustration of the Figure 5Here, the height dimension h2 of the upper edge 27 of the deflection edge 26 to a lower generatrix 31 of the feed roller 4 is shown. This height dimension h2 is equivalent to the height dimension h1 of the Figure 5 and is preferably between -1 mm and 15 mm. In the example shown, the height h2 is approximately 5 mm.

[0041] Figure 7 Figure 1 shows a perspective view of a fiber belt compactor 6 in a first embodiment with an inserted deflection pin 29 as a deflection edge 26. The deflection pin 29 is preferably made of steel and, preferably as shown here, can be inserted into the two side walls 24 and 25 of the fiber belt compactor 6. Such an embodiment can facilitate adaptation to the fiber belt to be processed, for example, if pins with different surfaces or geometries are easily interchangeable.

[0042] Figure 8In contrast, Figure 1 shows a perspective view of a fiber belt compressor 6 in a second embodiment, in which the deflecting edge 26 is integrally molded onto the fiber belt compressor. This allows the fiber belt compressor 6 to be manufactured cost-effectively as a plastic part.

[0043] With the fiber belt compactor 6 according to the present invention, it is possible to minimize negative influences on the fiber belt and to ensure largely trouble-free operation of the spinning unit.

[0044] The present invention is not limited to the embodiments shown and described. Modifications within the scope of the claims are possible, as is any combination of the described features, even if they are described in different claims, provided that no contradiction arises with the teaching of the independent claims. Reference symbol list

[0045] 1 Open-end spinning device 2 Working station 3 Feeding device 4 Feeding roller 5 Feeding table 6 Fiber strip compactor 7 Dissolving roller 8 Take-off device 9 Winding device 10 Spool 11 Fiber strip 12 Running axis of the dissolving roller 13 Spinning element 14 Running axis of the feeding roller 15 Yarn 16 Fiber strip channel 17 Infeed section 18 First fiber strip guide surface 19 Exit section 20 Second fiber strip guide surface 21 Exit opening 22 Lower edge of the exit opening 23 Deflection area 24 Machine-facing side wall 25 Machine-away side wall 26 Deflection edge 27 Upper edge of the deflection edge 28 Mounting section 29 Deflection pin 30 Clamping line 31 Lower edge of the feeding roller R Radius A Distance h1 First height dimension h2 Second height dimension αfirst angle βsecond angle

Claims

1. Sliver compactor (6) for an open-end spinning device (1) having an opening roller (7) and a feeder (3) arranged laterally next to the opening roller (7), having a sliver channel (16) which has an inlet section (17) with a first sliver guiding surface (18), an outlet section (19) with a second sliver guide surface (20) and with an outlet opening (21), wherein a deflecting region (23), in which a sliver (11) to be fed to the opening roller (7) can be deflected, is arranged between the inlet section (17) and the outlet section (19), and wherein the sliver channel (16) has a side wall (24) facing the machine and a side wall (25) facing away from the machine, wherein a deflecting edge (26) is arranged in the deflecting region (23), characterized in that the deflecting edge (26) is inclined downwards with respect to the second sliver guiding surface (20) in the direction of the side wall (24) facing the machine, and in that the deflecting edge (26) is arranged skewed with respect to a lower edge (22) of the outlet opening (21).

2. Sliver compactor (6) according to the preceding claim, characterized in that the deflecting edge (26) has a radius (R) of between 1 mm and 10 mm, preferably between 2 mm and 7 mm, particularly preferably between 2 mm and 5 mm.

3. Sliver compactor (6) according to one of the preceding claims, characterized in that the deflecting edge (26) has a first angle (α) of between 25° and 60°, preferably between 35° and 50° and particularly preferably between 40° and 50°, with respect to a side view of the sliver compactor (6) with respect to a lower edge (22) of the outlet opening (21), wherein the side view of the sliver compactor (6) corresponds to a view of a cross section of the outlet opening (21).

4. Sliver compactor (6) according to one of the preceding claims, characterized in that the deflecting edge (26) has a second angle (β) of between -30° and 30°, preferably between -10° and 10° and particularly preferably between -5° and 5°, with respect to a top view of the sliver compactor (6) with respect to the lower edge (22), wherein the top view corresponds to a view of the second sliver guiding surface (20).

5. Sliver compactor (6) according to one of the preceding claims, characterized in that an upper edge (27) of the deflecting edge (26) has a first height dimension (h1) of between -1 mm and 16 mm, preferably between 2 mm and 9 mm and particularly preferably between 4 mm and 7 mm, with respect to a middle of the outlet opening (21) with respect to the lower edge (22) of the outlet opening (21).

6. Sliver compactor (6) according to one of the preceding claims, characterized in that the deflecting edge (26) is integrally formed on the sliver compactor (6).

7. Sliver compactor (6) according to one of Claims 1-5, characterized in that the deflecting edge (26) is formed by a deflecting pin (29) which can preferably be inserted into the side walls (24, 25) of the sliver compactor (6).

8. Open-end spinning device (1) having an opening roller (7) and a feeder (3) arranged laterally next to the opening roller (7) and having a feeding roller (4), a feeding table (5) and a sliver compactor (6), characterized in that the sliver compactor (6) is designed according to one of the preceding claims.

9. Open-end spinning device (1) according to the preceding claim, characterized in that the deflecting edge (26) has a first angle (α) of between 25° and 60°, preferably between 35° and 50° and particularly preferably between 40° and 50°, with respect to a side view of the sliver compactor (6) with respect to a running axis (12) of the opening roller (7), wherein the side view of the sliver compactor (6) corresponds to a view of a cross section of the outlet opening (21).

10. Open-end spinning device (1) according to one of the preceding claims relating to an open-end spinning device (1), characterized in that the deflecting edge (26) is arranged warped with respect to the running axis (12) of the opening roller (7).

11. Open-end spinning device (1) according to one of the preceding claims relating to an open-end spinning device (1), characterized in that the deflecting edge (26) has a second angle (β) of between -30° and 30°, preferably between -10° and 10° and particularly preferably between -5° and 5°, with respect to a top view of the sliver compactor (6) with respect to the running axis (12) of the opening roller (7), wherein the top view corresponds to a view of the second sliver guiding surface (20) of the sliver compactor (6).

12. Open-end spinning device (1) according to one of the preceding claims relating to an open-end spinning device (1), characterized in that an upper edge (27) of the deflecting edge (26) has a second height dimension (h2) of between -1 mm and 15 mm, preferably between 1 mm and 8 mm and particularly preferably between 3 mm and 7 mm, with respect to a lower generatrix (31) of the feeding roller (4) with respect to a middle of an outlet opening (21) of the sliver compactor (6).

13. Open-end spinning device (1) according to one of the preceding claims relating to an open-end spinning device (1), characterized in that the deflecting edge (26) has a distance of between 20 mm and 80 mm, preferably between 25 mm and 50 mm and particularly preferably between 30 mm and 45 mm, with respect to a clamping line (30) between the feeding table (5) and the feeding roller (4) with respect to a middle of the sliver channel (16).