Card clothing steel wire, card clothing carrier and carding machine

Abstract

The clothing wire according to the invention has a base section with a base height and a blade section with a blade height. The blade height is less than the base height. The blade section has a plurality of consecutive, geometrically identical tooth bodies. The tooth body extends between two first recesses that are to be extended in the height direction to the maximum extent in the direction of the base section. Two directly consecutive tooth bodies are arranged at a pitch interval. A first tooth tip and at least one second tooth tip are arranged on the tooth body, the first tooth tip adjoining the first recess. A first tooth tip face adjoins the first tooth tip and a second tooth tip face adjoins the at least one second tooth tip. The first tooth tip face has a first tip face length and the second tooth tip face has a second tip face length, each having at least the smaller one of the values of 0.15 mm or 6% of the pitch. A first tooth flank with a positive first working angle adjoins the first tooth tip. A second tooth flank with a positive second working angle adjoins the at least one second tooth tip.

Description

Technical Field

[0001] This invention relates to a carding wire (Garniturdraht) for a carding machine, a carding wire carrier, and a carding machine. The carding wire carrier is, for example, a roller, a cover strip of a rotary cover, or a fixed cover element. In carding machines (e.g., carding machines for spinning or carding machines for nonwoven fabric production), various types of rollers are used, such as licker-in rollers, cylinders, work rollers, transfer rollers, or doffer rollers, and they are equipped with a fairly diverse range of carding wires. Background Technology

[0002] For carding machine cylinders, for example, those from EP3323917A1 or CN112458575A, the following card cloth wires are known, which have multiple tooth tips arranged on a common tooth body. Improved fiber transfer should be achieved by increasing the number of tips (ppsi).

[0003] WO2013072136A1 shows a needle cloth wire for a carding machine cylinder, which should hold the fiber as high as possible, preferably at the level of the tooth tip. Summary of the Invention

[0004] Based on the prior art, the objective of this invention can be considered as providing a carding wire that achieves improved carding results under high power conditions. Providing an improved carding carrier and an improved carding machine are other objectives of this invention.

[0005] This task is accomplished by the features of independent claims 1, 13 and 15.

[0006] The needle wire according to the invention has a base section, which is configured to be arranged on the surface of the needle wire carrier of a carding machine at the lower side of the end of the needle wire in its height direction. The needle wire carrier of the carding machine (such as a carding machine or a combing machine) is, for example, a roller, a cover strip of a rotary cover, or a fixed cover element. The needle wire is naturally helically tensioned on the roller, and the needle wire can also be arranged extended on the cover element. In order to clearly describe the geometry of the teeth, in particular, of the needle wire, it is assumed that the needle wire is in an extended state. Accordingly, the longitudinal direction of the needle wire is the direction in which the extended needle wire extends in principle indefinitely. The teeth are correspondingly perpendicular to this longitudinal direction and perpendicular to the lower side of the base section (which is located in a plane in the extended state of the needle wire) extending away from the base section in the so-called height direction. A third vertical spatial direction is called the width direction. The base section can, for example, utilize the lateral outward pointing in the width direction to support adjacent turns of the same wire. In this regard, rectangular or cross-linked base segments may be advantageous. The base segment can be wider than the blade segment (Blattabschnitt) in the width direction to allow necessary channels for the fibers between the teeth in the width direction. The base segment has a base height in the height direction.

[0007] The needle wire according to the invention has a blade section at which the lower end of the needle wire in the height direction is located. The blade section may be smaller in width than the base section, and advantageously may be implemented by decreasing upward in its width (in the width direction). The blade section has a blade height in the height direction. The sum of the blade height and the base height may be the total height of the needle wire. The boundary between the blade section and the base section may be as follows: In a non-crosslinked rectangular base section, the base section may terminate upward at the point where the extension of the needle wire in the width direction begins to decrease. In a crosslinked base section, the base section may terminate upward in a flat plane parallel to the lower side of the base section. The upper boundary of the base section should in any case be determined in accordance with the function of the base section as described above. The blade section may be designed to widen downward, wherein the downward widening near the tooth tip may be more likely to be smaller and linear, while the widening up to the maximum width near the base section may proceed more rapidly. The base section can begin where the blade section reaches its maximum width.

[0008] The blade height of the needle cloth wire according to the invention is smaller than the base height. Due to the small blade height, only a small volume is created within the needle cloth, within which fibers can escape effective combing and potentially clog the needle cloth. On the other hand, a base region is created, which provides the necessary stability for spiral winding onto the rollers and for combing.

[0009] The blade section of the needle-cloth wire according to the invention has a plurality of identical teeth successive in the longitudinal direction. By definition, the teeth extend in the longitudinal direction between two first notches of the blade section that extend to the base section to the maximum extent in the height direction. A notch that does not extend to the base section to the extent that the first notch, by definition, is the deepest, can be referred to as a second notch. The teeth are arranged at pitch intervals in the longitudinal direction. The pitch is referred to herein as a distance parameter, which may, for example, be between 1.1 mm and 2.5 mm, or advantageously between 1.3 mm and 1.8 mm. The first notches may also be arranged accordingly at pitch intervals in the longitudinal direction.

[0010] A first tooth tip and at least one second tooth tip are arranged at the tooth body of the needle wire according to the invention. The first tooth tip is adjacent to a first notch. The first tooth tip preferably points in the direction of the first notch. Advantageously, all the first tooth tips and the second tooth tips point in the same direction. Advantageously, this direction has a component in the longitudinal direction. For example, all the first tooth tips and the second tooth tips point in the longitudinal direction or in the opposite longitudinal direction. The first tooth tip or the second tooth tip can be—ideally, without considering manufacturing limitations—a linear structure that extends in the width direction. The adjacent planar structures limited by the first tooth tip—such as the first tooth surface (Zahnbrust) and the first—can enclose an acute angle, i.e., an angle less than 90°, when viewed in the width direction. The adjacent surface structures limited by at least one second tooth tip—such as the second tooth surface and the second tooth tip surface—can enclose an acute angle, i.e., an angle less than 90°, when viewed in the width direction.

[0011] A first tooth tip face is adjacent to the tip of the first tooth, and a second tooth tip face is adjacent to at least one second tooth tip. The first tooth tip face is preferably a flat surface extending in both the longitudinal and width directions. The second tooth tip face is preferably a flat surface extending in both the longitudinal and width directions. Advantageously, the surface normal of the first tooth tip face points upward in the height direction. Advantageously, the surface normal of the second tooth tip face points upward in the height direction. Advantageously, the first tooth tip face is disposed opposite the lower side of the base section. Advantageously, the second tooth tip face is disposed opposite the lower side of the base section. The first tooth tip face may be subsequently disposed following the first tooth tip in the direction of relative movement of the fiber to be combed toward the first tooth tip. The second tooth tip face may be subsequently disposed following the second tooth tip in the direction of relative movement of the fiber to be combed toward the second tooth tip. The first tooth tip face and / or the second tooth tip face may be inclined at -10° to +10° or -20° to +20° relative to the longitudinal direction. The first and / or second tooth tip faces may be inclined at -10° to +10° or -20° to +20° relative to the width direction. The first and second tooth tip faces may extend in a concave or convex curve, for example. The first and / or second tooth tip faces may function to hold the fibers higher in the carded fabric. It may be advantageous that the first and / or second tooth tip faces extend within two mutually parallel planes (which extend in both the longitudinal and width directions) without penetrating these planes. These two planes surrounding the first and / or second tooth tip faces may be spaced apart from each other at a distance between 0.001 mm and 0.05 mm or between 0 mm and 0.1 mm. Preferably, these two planes extend at the same distance as the plane in which the tooth tip extends at least partially. The tooth tip is preferably formed by an edge extending in the width direction. The first tooth tip face may terminate at the first tooth tip in the longitudinal direction. The second tooth tip face may terminate at the second tooth tip in the longitudinal direction. On the other hand, the first tooth tip face and the second tooth tip face may terminate at the transition to the tooth back. At the two ends of the first tooth tip face and the second tooth tip face in the longitudinal direction, the transition (to the tooth tip (tooth face) on the one hand and to the tooth back on the other hand) may be rounded or gradually rounded in the case of wear.

[0012] The first tooth tip face has a first tip face length in the longitudinal direction. The second tooth tip face has a second tip face length in the longitudinal direction. The first tip face length and the second tip face length have the smaller of the values ​​of at least 0.15 mm or 6% of the pitch. Tooth tip faces with shorter lengths cannot adequately perform the function of holding the fiber in the upper part.

[0013] A first tooth surface with a positive first working angle is adjacent to the tip of the first tooth. The first tooth surface can—as is common in this art—be used to convey fibers gripped by the tooth tip. The surface of the first tooth surface can be oriented and inclined in the opposite direction to the relative movement of the fibers to be combed, such that the fibers are squeezed from the first tooth surface toward the base section by the relative movement. The first tooth surface with a positive working angle can be inclined relative to the longitudinal direction such that the perpendicular line of the first tooth surface points toward the base section. In the projection of the first tooth surface onto a plane formed by the longitudinal and height directions, the first tooth surface can be within a first working angle between 0° and 90° relative to the height direction. The first working angle can be measured on the first tooth surface in the region relatively near the first tooth tip. The first tooth tip can extend linearly near the first tooth tip. The second tooth surface can include all the features of the first tooth surface in a similar manner.

[0014] The needle wire according to the invention is characterized in that a second tooth surface with a positive second working angle is adjacent to at least one second tooth tip.

[0015] WO2013072136A1 describes the following bias: a second tooth tip or multiple second tooth tips (adjacent to a tooth surface with a positive working angle), along with the protrusions (tooth tip faces) that effectively hold the fibers in the upper part, thus increasing the aggression of the card cloth and causing yarn damage. Despite the increased tooth density (ppsi), yarn damage does not occur even at high power using the card cloth wire according to the invention. Unexpectedly, the card cloth wire according to the invention instead results in better yarn quality and a more uniform fiber web (Vlies), with better parallelism and fewer loops. Furthermore, a synergistic effect occurs, namely, the tooth tip face effectively and better holds the fibers in the upper part than tooth tips without a significant tooth tip face, thereby achieving better interaction with other carding elements, increasing output (Ausbringingung) because it also enhances the effect of other carding elements (cover elements, work rollers, and doffer rollers), and thus additionally improving the removal of dirt particles and other unwanted components. Furthermore, the teeth become more wear-resistant, especially when, for example, there are three tooth tips in the tooth body. Due to the good stability, it may even be possible to produce self-grinding sharp tooth tips.

[0016] A tooth back may be arranged opposite the tooth surface in the longitudinal direction. The tooth back may extend at least partially in a straight line, i.e., without curvature. The back angle relative to the longitudinal direction may be, for example, between 15° and 50°, or advantageously between 25° and 40°, and for example, 30° or 33°. The advantageous value of the back angle can help the fiber to penetrate well into the first and second notches, but also to exit well from the first and second notches again.

[0017] The distance from the tip of the first tooth to the tip of the second tooth, which is furthest from the tip of the first tooth, in the longitudinal direction can be between 20% and 60% of the pitch.

[0018] The first tooth tip face can be a flat surface extending in both the longitudinal and width directions. The second tooth tip face can also be a flat surface extending in both the longitudinal and width directions. The length of the first tip face can, for example, be a maximum of 40% of the pitch or, advantageously, a maximum of 30% of the pitch. The length of the second tip face can, for example, be a maximum of 40% of the pitch or, advantageously, a maximum of 30% of the pitch. The lengths of the first and second tip faces can be different or the same.

[0019] The first notch may include a first tooth root at the portion closest to the base section. The first tooth root may be tangent in the longitudinal direction. The tooth body may have a first tooth depth corresponding to the distance in the height direction between the first tooth tip and the first tooth root. The tooth body may include a second tooth depth corresponding to the distance in the height direction between at least one second tooth tip and the first tooth root. The first tooth depth and the second tooth depth may be less than the blade height. The second tooth depth may, for example, be up to 20% greater than the first tooth depth, or equal to the first tooth depth, or up to 20% less than the first tooth depth, or advantageously up to 10% greater than the first tooth depth, or equal to the first tooth depth, or up to 10% less than the first tooth depth.

[0020] The tooth body may include at least one second notch disposed between a first tooth tip and at least one second tooth tip, and, if possible, between two at least two second tooth tips. The at least one second notch may have a second tooth root at a location closest to the base segment. The second tooth root may have a tangent in the longitudinal direction. The at least one second notch may have a third tooth depth corresponding to the distance in the height direction between the second tooth root and the subordinate second tooth tip. The second tooth tip subordinate to the second tooth root or the second notch may be a second tooth tip to which a second tooth surface abuts, the second tooth surface at least partially defining the corresponding second notch. The third tooth depth may be between 5% and 70% of the first tooth depth. If the second tooth depth is less than or equal to the first tooth depth, the third tooth depth may be between 5% and 60% of the first tooth depth.

[0021] The first working angle can have a value of 10° to 65° relative to the height direction, and advantageously a value of 40° to 55° relative to the height direction. The second working angle can have a value of 10° to 65° relative to the height direction, and advantageously a value of 40° to 55° relative to the height direction. The first tooth surface can be inclined at a greater angle in the first tip section than adjacent to the first tip section, the first tip section extending away from the first tooth tip in the height direction by a maximum of 0.20 mm or a maximum of 0.15 mm. The second tooth surface can be inclined at a greater angle in the second tip section than adjacent to the second tip section, the second tip section extending away from at least one second tooth tip in the height direction by a maximum of 0.20 mm or a maximum of 0.15 mm. The first tip section can extend away from the first tooth tip by a value between 0.03 and 0.20 mm. The second tip section can extend away from the second tooth tip by a value between 0.03 and 0.2 mm. The working angle in the first tip section can be between 5° and 20°, preferably 10°, larger than the working angle adjacent to (i.e., downwardly adjacent to) the first tip section. The working angle in the second tip section can be between 5° and 20°, preferably 10°, larger than the working angle adjacent to (i.e., downwardly adjacent to) the second tip section. The first tooth surface can be implemented linearly in the first tip section. The second tooth surface can be implemented linearly in the second tip section.

[0022] The blade height can be from 0.25 mm to 0.85 mm or from 0.3 mm to 0.6 mm. The base height can be between 0.9 mm and 2.4 mm, and advantageously between 1 mm and 2 mm. The base width can be from 0.3 mm to 0.9 mm. The first tooth tip and / or the second tooth tip can have an extension of 0.04 mm to 0.15 mm, and preferably 0.06 mm to 0.1 mm, in the width direction. The total height can correspond to the sum of the base height and the blade height, and is between 1.2 mm and 3.2 mm, preferably between 1.5 mm and 2.5 mm, and for example, 2 mm.

[0023] The carding cloth carrier for a carding machine according to the invention is equipped with carding cloth wires according to the invention. The carding cloth carrier can be implemented as a cylinder roller. The cylinder roller is generally the roller with the largest diameter among all the rollers of the carding machine. The cylinder roller is configured to have the highest circumferential speed among all the rollers of the carding machine.

[0024] The carding machine according to the invention is equipped with a carding cloth carrier according to the invention. The carding machine can be configured as a carding machine for spinning. The carding cloth wire according to the invention can exert its advantageous effect most advantageously in the corresponding application. Attached Figure Description

[0025] Figure 1 Figure 1A symbolic view shows a first embodiment of the needle wire according to the invention in the width direction, and a cross-sectional view through the needle wire in a plane formed by the width and height directions.

[0026] Figure 2 Figure 2 An enlarged symbolic view is shown in the width direction of the teeth of the needle wire according to the invention.

[0027] Figure 3 Figure 3 A second embodiment of the needle wire according to the invention is shown in a symbolic view in the width direction.

[0028] Figure 4 Figure 4 A symbolic view shows a third embodiment of the needle wire according to the invention in the width direction.

[0029] Figure 5 Figure 5 A fourth embodiment of the needle wire according to the invention is shown in a symbolic view in the width direction. Detailed Implementation

[0030] Figure 1 A symbolic view shows a first embodiment of the needle wire 1 according to the invention in the width direction z, and a symbolic cross-sectional view through the needle wire 1 in a plane formed by the width direction z and the height direction y. The symbolic view on the left includes a longitudinal segment of the needle wire, which includes four teeth 7. The cross-sectional view is arranged to the right of this longitudinal segment. The needle wire in its... Figure 1The lower portion of the tooth has a base section 2, which is limited downward by a lower side 3 of the base section. The base height 4 is illustrated both in the symbolic view on the left and in the symbolic cross-sectional view shown on the right. A blade section 5 is arranged above the base section 2, and its blade height 6 is illustrated. The blade height 6 is less than the base height 4. The four teeth 7 shown are identical and each includes a first tooth tip 10 and a second tooth tip 11 to the right of each first tooth tip. The four teeth 7 are separated from each other by three fully identifiable first notches 8. The pitch 9 is illustrated between the second first tooth tip 10 from the left and the third first tooth tip 10 from the left. A first tooth tip face 12 is adjacent to the right of each first tooth tip 10. The first tooth tip face 12 extends linearly and in the longitudinal direction x. A first tooth face 14 is adjacent downward to each first tooth tip 10. The first tooth face 14 extends linearly downward from the first tooth tip 10. A first working angle 15 can be read at the straight extension section of the first tooth surface 14. The positive first working angle 15 is 40° in this embodiment. A second tooth tip surface 13 is adjacent to the right at each second tooth tip 11. The second tooth tip surface 13 extends straight and longitudinally in the x-direction. A second tooth surface 16 is adjacent downward at each second tooth tip 11. The second tooth surface 16 extends straight downward from the second tooth tip 11. A second working angle 17 can be read at the straight extension section of the second tooth surface 16. The positive second working angle 17 is 40° in this embodiment. The first tooth root 18 is the deepest part of the first recess 8, and therefore the part of the first recess 8 closest to the base section 2. Correspondingly, the second tooth root 20 is the deepest part of the second recess 19 and the part closest to the base section 2. The first recess 8 is deeper than the second recess 19. Accordingly, the first tooth root 18 is closer to the base segment 2 in the height direction y than the second tooth root 20. The first tooth depth 21 is described at the fourth first tooth tip 10 from the left. The second tooth depth 22 is described at the fourth second tooth tip 11 from the left. The third tooth depth 23 is described at the third second tooth tip 11 from the left. The first tooth depth 21 and the second tooth depth 22 are... Figure 1 The embodiments are the same. The third tooth depth 23 is in Figure 1 In the middle and all subsequent embodiments, the depth is less than the first tooth depth 21. The first tip face length 26 is described starting from the second first tooth tip 10 from the left. The second tip face length 27 is described starting from the second second tooth tip 11 from the left. The first tip face length 26 and the second tip face length 27 are the same in this embodiment. Figure 1 The schematic cross-sectional view shown on the right illustrates the base width of 28. For clarity, symbolic coordinate systems with longitudinal x-direction and height y-direction, or with width z-direction and height y-direction, are shown below the longitudinal section and below the cross-sectional view, respectively. All of the above relate to... Figure 1The explanation also applies to all subsequent figures, and therefore is not repeated entirely in each subsequent embodiment, but mainly explained as... Figure 1 The differences between the embodiments.

[0031] Figure 2 An enlarged view of the tooth body 7 of the needle wire 1 according to the invention is shown. The tooth body 7 extends in the longitudinal direction x between two first tooth roots 18 and includes a first tooth tip 10 and a second tooth tip 11. A first tip segment 24 that is downwardly adjacent to the first tooth tip 10 in the height direction y is inclined at a greater first working angle 15 relative to the height direction y than the subsequent downward region of the first tooth surface 14 in the height direction. A second tip segment 25 that is downwardly adjacent to the second tooth tip 11 in the height direction y is inclined at a greater second working angle 17 relative to the height direction y than the subsequent downward region of the second tooth surface 16 in the height direction.

[0032] Figure 3 A symbolic view shows a second embodiment of the needle wire 1 according to the invention in the width direction z. (Compared to...) Figure 1 In different embodiments, the second tooth depth 22 is greater than the first tooth depth 21. The third tooth depth 23 is less than the first tooth depth 21 and the second tooth depth 22.

[0033] Figure 4 A symbolic view shows a third embodiment of the needle wire 1 according to the invention in the width direction z. (Compared to...) Figure 1 The embodiments differ; in the illustrated tooth body 7, the second tooth depth 22 is smaller than the first tooth depth 21. The third tooth depth 23 is smaller than the first tooth depth 21 and the second tooth depth 22. Furthermore, Figure 4 The following feature is shown, which can also be applied to all other embodiments: the length 27 of the second tip face 13 adjacent to the second tooth tip 11 is different from and in particular greater than the length 26 of the first tip face 12 adjacent to the first tooth tip 10.

[0034] Figure 5 A fourth embodiment of the needle-cloth wire 1 according to the invention is shown in a symbolic view in the width direction z. Unlike the previous embodiments, each tooth 7 has two second tooth tips 11. As in all other embodiments, the tooth 7 extends between first tooth roots 18 in the longitudinal direction x, and has a first tooth tip 10 in addition to the two second tooth tips 11.

[0035] List of reference numerals 1. Needle cloth steel wire 2. Base Section 3. Lower side of base section 2 4. Base height 5 blade section 6 Blade height 7. Tooth body 8 First notch 9-pitch 10 First tooth tip 11 Second tooth tip 12 First tooth tip face 13 Second tooth tip face 14 First tooth surface 15 First Working Angle 16 Second tooth surface 17 Second Working Angle 18 First tooth root 10 Second notch 20 Second tooth root 21 First tooth depth 22 Second tooth depth 23 Third tooth depth 24 First Tip Section 25 Second Tip Section 26. Length of the first apex face 27. Length of the second apex face x Vertical direction y-axis (height direction) z-width direction

Claims

1. A type of steel wire for a carding machine's carding cloth carrier (1), • The needle wire has a base section (2), which is arranged on the surface of the needle carrier with its lower side (3) located at the end of the needle wire (1) in the height direction (y), and the base section has a base height (4) in the height direction (y). • The needle-cloth wire has a blade section (5), the end of the needle-cloth wire (1) opposite the lower side (3) in the height direction (y) is constructed at the blade section, and the blade section has a blade height (6) in the height direction (y). in, The blade height (6) is less than the base height (4). The blade section (5) has multiple teeth (7) that are sequentially arranged in the longitudinal direction (x) and are geometrically identical. The tooth (7) extends in the longitudinal direction (x) between two first notches (8) in the blade section (5) that extend to the base section (2) in the height direction (y) to the maximum extent. In this configuration, two directly successive tooth bodies (7) are arranged at a pitch (9) in the longitudinal direction (x). The tooth body (7) is provided with a first tooth tip (10) and at least one second tooth tip (11), wherein the first tooth tip (10) is adjacent to the first notch (8). Wherein, a first tooth tip face (12) is adjacent to the first tooth tip (10), and a second tooth tip face (13) is adjacent to the at least one second tooth tip (11). The first tooth tip face (12) has a first tip face length (26) in the longitudinal direction (x), and the second tooth tip face (13) has a second tip face length (27) in the longitudinal direction (x), each having a value that is at least the smaller of 0.15 mm or 6% of the pitch (9). Among them, a first tooth surface (14) with a positive first working angle (15) is adjacent to the tip (10) of the first tooth. Its features are, A second tooth surface (16) with a positive second working angle (17) is adjacent to the tip (11) of the at least one second tooth.

2. The needle-cloth steel wire (1) according to claim 1, Its features are, The first tooth tip face (12) and / or the second tooth tip face (13) are flat surfaces extending in the longitudinal direction (x) and the width direction (z).

3. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The length of the first tip face (26) and / or the length of the second tip face (27) is 40% of the maximum of the pitch (9) or 30% of the maximum of the pitch (9).

4. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The length of the first tip face (26) and the length of the second tip face (27) are different or the same.

5. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The first notch (8) includes a first tooth root (18) at the portion closest to the base section (2), and The tooth body (7) includes a first tooth depth (21), which corresponds to the distance between the first tooth tip (10) and the first tooth root (18) in the height direction (y), and The tooth body (7) includes a second tooth depth (22) corresponding to the distance between the at least one second tooth tip (11) and the first tooth root (18) in the height direction (y).

6. The needle-cloth steel wire (1) according to claim 4, Its features are, The second tooth depth (22) is up to 20% larger than or equal to the first tooth depth (21) or up to 20% smaller than the first tooth depth (21), or advantageously up to 10% larger than or equal to the first tooth depth (21) or up to 10% smaller than the first tooth depth (21).

7. The needle-cloth wire (1) according to any one of claims 5 or 6, Its features are, The tooth body (7) includes at least one second notch (19) disposed between the first tooth tip (10) and the at least one second tooth tip (11), and, if possible, between two of the at least one second tooth tip (11). Wherein, the at least one second notch (19) includes a second tooth root (20) at the location closest to the base section (2), The at least one second notch (19) has a third tooth depth (23) corresponding to the distance in the height direction (y) between the second tooth root (20) and the subordinate second tooth tip (11).

8. The needle-cloth wire (1) according to claim 7, Its features are, The third tooth depth (23) is between 5% and 70% of the first tooth depth (21).

9. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The first working angle (15) and / or the second working angle (17) have a value between 10° and 65° relative to the height direction (y), or preferably a value between 40° and 55° relative to the height direction (y).

10. The needle-cloth wire (1) according to claim 9, Its features are, The first tooth surface (14) is inclined at a greater first working angle (15) in the first tip section (24) than it is adjacent to the first tip section (24), the first tip section extending at a maximum of 0.20 mm or a maximum of 0.15 mm in the height direction (y) away from the first tooth tip (10), and / or The second tooth surface (16) is inclined at a greater second working angle (17) in the second tip section (25) than it is next to the second tip section (25), the second tip section extending at most 0.20 mm or at most 0.15 mm away from the at least one second tooth tip (11) in the height direction (y).

11. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The blade height (6) is 0.25 mm to 0.85 mm, or advantageously 0.3 mm to 0.6 mm, and the base height (4) is 0.9 mm to 2.4 mm, or advantageously 1 mm to 2 mm.

12. The needle-cloth wire (1) according to any one of the preceding claims, Its features are, The base width (28) is 0.3 mm to 0.9 mm.

13. A card cloth carrier for a carding machine, Its features are, The needle cloth carrier is equipped with needle cloth wire (1) according to any one of claims 1 to 12.

14. The card cloth carrier for a carding machine according to claim 13, Its features are, The needle cloth carrier is implemented as a cylinder roller.

15. A carding machine, Its features are, The carding machine is equipped with a carding cloth carrier according to any one of claims 13 to 14.

16. The carding machine according to claim 15, Its features are, The carding machine is configured as a carding machine for spinning yarn.

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