Clothing wire, clothing carrier and carding machine

Abstract

A wire assembly (1) according to the invention has a base section (2) and a blade section (5). The blade height (6) is greater than the base height (4). The blade section has a plurality of identical tooth bodies (7). A tooth body extends longitudinally between two first recesses (8) of the blade section, which extend vertically as far as possible towards the base section. The tooth bodies are spaced apart longitudinally at a pitch (9). A first tooth tip (10) and at least one second tooth tip (11) are arranged on each tooth body. The first tooth tip adjoins a first recess (8) and points towards this first recess. The wire assembly is characterized in that the first tooth tip (10) and the second tooth tip (11), which is furthest away from the first tooth tip, are arranged on each tooth body at a tooth tip spacing (12) that is less than 50% of the pitch (9).

Description

[0001] The invention relates to a clothing wire for a clothing carrier of a carding machine, a clothing carrier, and a carding machine. A clothing carrier is, for example, a roller, a flat bar of a revolving flat, or a stationary flat element. In carding machines such as cards for yarn production or cards for nonwovens production, various types of rollers are used, such as lickerins, cylinders, worker rollers, transfer rollers, or doffer rollers, and these are sometimes equipped with quite different types of clothing wires.

[0002] For cylinders of cards, for example, clothing wires are known from EP3323917A1 or CN112458575A, which have several tooth tips arranged on a common tooth body.

[0003] FR1493015A and JP08074132A disclose wire accessories with several tooth tips arranged on a tooth body, which point in different directions.

[0004] EP3168336A1 and DE4436378A1 disclose second tooth tips which are arranged far down in the height direction relative to a first tooth tip.

[0005] DE102008027355A1 discloses a clothing wire for a pickup with a high ppsi. WO00 / 26450, EP2567010B1, and EP2756119A1 disclose a clothing wire with an undercut for better retention of fibers in the tooth face.

[0006] WO03087446A2 and DE1927049A1 show wire accessories with tooth tips arranged at a uniform distance, but in which the tooth depths between successive tooth tips are alternated or of different depths.

[0007] Based on this prior art, it can be considered the object of the present invention to provide a clothing wire which, on the one hand, achieves a high carding effect with low wear and, on the other hand, provides a large receiving space for fibers with high stability.

[0008] This object is achieved by a clothing wire, a clothing carrier and a carding machine according to claims 1, 13 and 15 of the present document.

[0009] The clothing wire according to the invention has a foot section designed to be arranged with its underside, which is arranged at one end of the clothing wire in its vertical direction, on the surface of a clothing carrier of a carding machine. A clothing carrier of a carding machine such as a card or a carding machine is, for example, a roller, a flat bar of a revolving flat, or a stationary flat element. On rollers, the clothing wire is naturally wound in a spiral manner, while on flat elements it can also be arranged stretched. In order to be able to clearly describe the geometry, in particular of the teeth of the clothing wire, a stretched state of the clothing wire is therefore assumed - also but not only in this document. Accordingly, the longitudinal direction of the clothing wire is the direction in which the stretched clothing wire extends, in principle endlessly.The teeth extend perpendicularly from this longitudinal direction and perpendicularly to the underside of the base section, which lies in one plane when the clothing wire is stretched out, in a so-called height direction away from the base section. The third, vertical spatial direction is referred to as the width direction. The base section can, for example, with lateral outer surfaces pointing in the width direction, also serve to support adjacent turns of the same wire. In this context, rectangular or interlinked base sections can be advantageous. The base section can be wider in the width direction than the blade section so that the necessary channels for the fibers are present between the teeth in the width direction. The base section has a foot height in the height direction.

[0010] The clothing wire according to the invention has a blade section at which the end of the clothing wire opposite the underside is formed in the height direction. The blade section can be less wide than the foot section and can advantageously be designed so that its width (in the width direction) reduces towards the top. The blade section has a blade height in the height direction. The sum of the blade height and the foot height can be the total height of the clothing wire. The demarcation of the blade section from the foot section can be as follows: In the case of a non-linked, rectangular foot section, the foot section ends at the top at the point at which the extension of the clothing wire in the width direction begins to decrease. In the case of a linked foot section, the foot section can end at the top in a flat surface that lies parallel to the underside of the foot section.In accordance with the functions of the root section outlined above, the upper limit of the root section must be determined. The blade section can be designed to widen downwards, whereby the downward widening can be rather slight and linear near the tooth tips, while near the root section, the widening to the maximum width can occur more quickly. The root section can begin at the point where the blade section has reached its maximum width.

[0011] The blade height of the clothing wire according to the invention is greater than the root height. This allows, on the one hand, deeply punched interspaces to be formed in the blade section, providing a large volume for accommodating a large number of fibers. On the other hand, a root area is created that is well-suited for spiral winding onto a roller.

[0012] The blade section of the clothing wire according to the invention has a plurality of identical tooth bodies following one another in the longitudinal direction. By definition, a tooth body extends longitudinally between two first recesses of the blade section, which extend vertically as far as the base section. Recesses that do not extend as far toward the base section as the first recesses, which by definition are the recesses with the greatest depth, are referred to as second recesses. The tooth bodies are arranged spaced apart in the longitudinal direction at a pitch. The pitch here refers to a distance dimension that can be between 1.3 mm and 5.5 mm, or advantageously between 1.5 mm and 4 mm, and even more advantageously between 1.8 mm and 3.5 mm. The first recesses are also arranged at a corresponding pitch.

[0013] A first tooth tip and at least one second tooth tip are arranged on each tooth body of the wire clothing according to the invention. A first tooth tip is adjacent to a first recess and points toward this first recess. Advantageously, all first and second tooth tips point in the same direction. This direction advantageously has a component in the longitudinal direction. For example, all first and second tooth tips point in the longitudinal direction or counter to the longitudinal direction.

[0014] The wire clothing according to the invention is characterized in that on each tooth body, the first tooth tip and the second tooth tip located at the maximum distance from the first tooth tip are arranged in the longitudinal direction at a tooth tip spacing that is less than 50%, preferably less than 45%, particularly preferably less than 40%, and most preferably less than 35% of the pitch. In the case where two or more second tooth tips are arranged on a tooth body, the tooth tip spacing is determined from the distance between the first tooth tip of this tooth body and precisely the second tooth tip of this tooth body that is spaced furthest in the longitudinal direction from the first tooth tip of this tooth body.

[0015] By arranging second tooth points on a tooth body, the number of effective tooth points is increased, whereby the carding effect in terms of fiber opening and separation is improved according to the higher point number (ppsi). This leads to a higher quality web or yarn. The higher point number reduces wear per point and thus increases the service life of the clothing wire. At the same time, by arranging a second tooth point on a single tooth body, no further tooth body is required for the second tooth point. This means that one existing tooth body can be designed to be stable (e.g. wide in the lengthwise direction) without the space for the fibers between the tooth bodies being noticeably reduced. If the point number (ppsi) were achieved by reducing the pitch, the tooth bodies would be moved closer together, which would be detrimental to their stability or to the size of the space for the fibers.Increasing the receiving space by increasing the tooth cutout depth would, in turn, reduce the stability of the tooth bodies and make it more difficult to remove the fibers from the very deep tooth cutout. These conventional measures for optimizing the clothing wire cannot therefore achieve the synergistic effect of the measures according to the invention. When the clothing wire according to the invention is used on worker or doffer rollers, a better transfer ratio from the cylinder is achieved without any loss of quality, because the carding performance (fiber opening and separation, or "parallelization" for short) is also increased.The latter advantages, in particular, cannot be readily understood from the known publications on double teeth on clothing wires for cylindrical rollers, nor are they readily apparent from the aforementioned boundary conditions for optimizing clothing wires with the required receiving space. In addition, further advantages arise in the production of fine nonwovens, because the numerous points present support them at more support points, thus resulting in a more uniform structure.

[0016] On the tooth body of the clothing wire, a tooth face can be formed by the surface of the tooth body adjacent to the first recess of the tooth body. At least in a tip section adjacent to the first tooth tip, the tooth face can be inclined toward the root section or extend perpendicular to the longitudinal direction, so that the tooth face, viewed in a width direction perpendicular to the longitudinal direction and the height direction, encloses an acute first working angle with the height direction. In the present document, an angle is understood to be an "acute" angle if the value of the angle is between 0° and 90°. The tooth body can be bordered by a tooth back on the side opposite the tooth face. The tooth back, together with the adjacent tooth face of the following tooth body, delimits the receiving space for the fibers to be processed.A tooth tip spacing of, for example, less than 50%, 45%, 40%, or 35% allows the design of a tooth body with a less steep tooth back. This results in fibers easily emerging from the receiving space. A minimum back angle to the vertical direction of the tooth back of 25° to 80° or from 35° to 70° can be advantageous in this context. A minimum angle to the vertical direction of the tooth back of 30° to 85° or from 40° to 80° can be advantageous - based on the first tooth depth - particularly in the upper half of the extension of the tooth back or from above one-third of the first tooth depth. The tooth back can curve downwards in the vertical direction into a first or second tooth base. The tooth back can curve upwards in the vertical direction into a first or second tooth tip. The tooth back can be straight between the upper and lower transitions.Between the upper and lower transitions, the tooth back can be divided into two straight sections. In such a configuration, the back angle of the section closer to the first or second tooth tip is greater than the back angle of the section closer to the first or second tooth base.

[0017] Advantageously, all first and second tooth tips point in the same direction. Advantageously, each first tooth tip is adjacent to a first tooth face inclined toward the root section. Advantageously, each second tooth tip is adjacent to a second tooth face inclined toward the root section. Advantageously, the first tooth tip and / or the second tooth tip are thin, so that, for example, no plateau or no plateau with a longitudinal extension of more than 0.1 mm is formed at the first and / or second tooth tip.

[0018] The first working angle can be between 0° and 60°, preferably between 20° and 60°, and more preferably between 20° and 55°. A second working angle can be read off every other tooth face. The second working angle can be between 0° and 60°, preferably between 20° and 60°, and more preferably between 20° and 55°.

[0019] The first tooth face can have a first holding section adjacent to the tip section in the vertical direction downwards, which first holding section has an acute holding angle to the vertical direction that is greater than the first working angle of the adjacent tip section. A first tooth face with such a holding section can hold the fibers better in the receiving space. The angle to the vertical direction can assume greater values ​​in the holding section than in a section of the tooth face adjacent above or below. The holding section can have a minimum extension of 0.1 mm. The tip section can be straight when viewed in the width direction. The holding section can be straight or partially straight when viewed in the width direction. When viewed in the width direction, the holding section can transition into the tip section in a kink, taking manufacturing tolerances into account.The holding section can, viewed in the width direction, transition into a section of the first tooth face located closer to the first tooth base in a rounded shape. The rounded shape can have a radius of at least 0.14 mm, at least 0.15 mm, at least 0.18 mm, or more.

[0020] The first tooth face can have, in the vertical direction downwards following the tip section and the first holding section, one or more further holding sections with a greater acute holding angle than an intermediate section of the first tooth face adjacent in the direction of the first tooth tip. The holding force on the fibers in the receiving space can be increased in this way. The acute holding angle of the first holding section and / or the further holding section(s) can be between 50° and 90°. The acute holding angle of the first holding section and / or the further holding section(s) can be between 80° and 90°. The acute holding angle of the first holding section and / or the further holding section(s) can be between 60° and 80°. The acute holding angle of the first holding section and / or the further holding section(s) can be between 50° and 60°.

[0021] The first recess of the blade section can comprise a first tooth root, which is a point of the first recess closest to the root section in the height direction. The tooth body can have a first tooth depth that corresponds to the distance in the height direction from the first tooth tip or second tooth tip arranged highest on the tooth body to the first tooth root, and is less than or equal to the blade height. The first tooth depth can be greater than the difference between the total height and the first tooth depth. The first tooth depth can be equal to or greater than the root height. The first tooth depth can be between 1 mm and 4 mm and preferably between 1.4 mm and 3.3 mm. A large first tooth depth can be advantageous in order to obtain a receiving space of sufficient size. In this case, minimum dimensions for the first tooth depth are particularly crucial for an effective receiving space.Clothing wires for cylindrical rollers, especially for applications in yarn production, often have a first tooth depth of 0.7 mm or less. The receiving spaces with such a small first tooth depth are unsuitable for use on worker or doffer rollers because the shallow first tooth depth prevents reliable formation of a nonwoven with sufficient nonwoven weight.

[0022] The receiving space for the wire fitting can be formed, when viewed in the width direction of the surface of the first recess, above a receiving space boundary that runs parallel to the longitudinal direction and at a distance from the first tooth base. The distance of the receiving space boundary from the first tooth base can be between 40% and 60% of the first tooth depth and, for example, 50% of the first tooth depth. Additionally, the receiving space can encompass the surface or surfaces of one or more second recesses. The surface area of ​​the receiving space can be larger than the partial surface area of ​​the adjacent tooth body above the receiving space boundary.

[0023] The height difference from the first tooth base to the first tooth tip, or the height difference from the first tooth base to a second tooth tip, can vary between 0% and 30% or between 0% and 20%, preferably between 0% and 10%, of the first tooth depth. This can result in the first and second tooth tips being positioned at different heights on the tooth body to a limited extent. This allows the carding effect and wear of the first and second tooth tips to be mutually adapted and optimized.

[0024] A second tooth depth in the height direction of each second recess adjacent to a second tooth tip and where the second tooth tip points toward the second recess can be between 0.5% and 50%, or between 0.5% and 30%, or between 0.5% and 20% of the first tooth depth. The second tooth depth can be determined in the height direction. The second tooth depth can be measured from a lowest point of the second recess closest to the root section to the second tooth tip adjacent to the second recess in question.

[0025] A base width, measured at the base section in the width direction, can range from 0.5 mm to 3.5 mm, preferably from 0.65 mm to 1.3 mm. The base section can be interlinked or uninterlinked for all wire accessories according to the invention.

[0026] The clothing wire according to the invention is preferably suitable for being wound onto a doffer and / or worker roller. The clothing wire according to the invention is preferably suitable for being wound onto a lickerin roller. The clothing wire according to the invention is preferably suitable for being wound onto a cylinder of a carding machine. The clothing wire according to the invention is preferably designed to be wound onto a doffer and / or worker roller. The clothing wire according to the invention is preferably designed to be wound onto a lickerin roller. The clothing wire according to the invention is preferably designed to be wound onto a cylinder of a carding machine.

[0027] A carding machine clothing carrier according to the invention comprises a carding wire according to the invention. Carding carriers such as rollers, flat bars of a revolving flat, or fixed flat elements can be equipped with carding wires or other carding elements (e.g., flexible carding) outside the carding machine and then transported to and installed on the carding machine. Setting up is possible, particularly with rollers, even when installed in the machine. In any case, in the present document, a carding carrier also refers to a prepared carding carrier, i.e., a unit between a carding carrier and a carding (carding wire, flexible carding, etc.). A carding machine according to the invention comprises a carding carrier according to the invention. The carding machine clothing carrier according to the invention can be a worker roller and / or a doffer roller of the carding machine. The carding machine can be a carding machine or a carding machine.A clothing carrier according to the invention can be used advantageously on all carding machines. The following figures and exemplary embodiments are therefore limited to the description of the clothing wire according to the invention. For an explanation of the structure and function of the clothing carriers and carding machines, reference is made to the prior art cited above or to "The Rieter Manual of Spinning," Werner Klein, 2014, or "Handbook of Nonwovens," SJ Russell, 2007. Fig. 1 Figure 1 shows a symbolic view in the width direction of a clothing wire according to the invention for a worker or doffer roll. Fig. 2 Figure 2 shows a symbolic view in the width direction of a second clothing wire according to the invention for a worker or doffer roll. Fig. 3 Figure 3 shows a symbolic view in the width direction of a clothing wire according to the invention for a Lickerin roller. Fig. 4 Figure 4shows a symbolic view in the width direction of a second clothing wire according to the invention for a Lickerin roller. Fig. 5 Figure 5 shows a symbolic view in the width direction of a clothing wire according to the invention for a cylinder of a carding machine. Fig. 6 Figure 6 shows an upper section of a tooth body of a wire clothing according to the invention. Fig. 7 Figure 7 shows an upper section of a tooth body of another clothing wire according to the invention.

[0028] Figure 1 shows a symbolic view in the width direction z of a clothing wire 1 according to the invention for a worker or doffer roll. The clothing wire 1 comprises a foot section 2, which in Figure 1in the displayed height direction y is at the bottom. Above the foot section 2, four tooth bodies 7 are shown as an example, which are arranged in the blade section 5. In the displayed longitudinal direction x, to the right of the section of the clothing wire 1, viewed in the width direction z, comprising four tooth bodies 7, a cross-section through the clothing wire 1 is shown. The cross-section shows the width direction z, the foot width 24 and - as in the section on the left - the underside 3 of the foot section 2, with which the clothing wire 1 is arranged on a clothing carrier. The foot section 2 is obviously not designed to be pulled onto a clothing carrier in a linked manner. Both in the section on the left and in the cross-section on the right, it is clearly visible that the blade height 6 is greater than the foot height 4. For Figure 1and all other figures, it applies in this context that the figures are symbolic in the sense that certain details are not shown or are shown in a simplified manner (for example, in the representations of the cross sections, the recesses 8, 23 in the blade section 5 are not taken into account), on the other hand, the figures are largely true to scale, so that distance dimensions and angles can be derived from the figures at least approximately, taking into account the corresponding scale (the limited resolution of the drawings must be taken into account, among other things). The tooth bodies 7 of the Figure 1comprise a first tooth tip 10 and exactly one second tooth tip 11. The first tooth tip 10 and the first tooth face 13 border on the first recess 8, which extends in the height direction y up to close to the base section 2. The tooth bodies 7 are spaced apart in the longitudinal direction x by a pitch 9 and are each separated from each other by a first recess 8. The first recess 8 is significantly deeper than the second recess 23, accordingly, Figure 1four tooth bodies 7 can clearly be seen, which are separated by first recesses 8, which extend maximally in the direction of the root section. The first tooth tip 10 and the second tooth tip 11 of a tooth body 7 are spaced from one another by a tooth tip distance 12. The tooth tip distance 12 is clearly smaller than 50% of the pitch 9. The first tooth tip 10 points in the direction of the first recess 8. The second tooth tip 11 points in the direction of the second recess 23. The first tooth depth 20 is illustrated with the aid of an auxiliary line that connects two first tooth roots 21 with one another.

[0029] In the third recess 8 from the left and in the fourth tooth body 7 from the left, Figure 1the receiving space boundary 25 is shown, which runs in the height direction y approximately at a height of 50% of the first tooth depth 20. The area of ​​the first recess 8 above the receiving space boundary 25 (receiving space 26) is shown hatched with hatching lines that run from bottom left to top right. The area of ​​the (fourth) tooth body 7 above the receiving space boundary 25 (tooth body surface 26) is shown hatched with hatching lines that run from top left to bottom right. The area of ​​the receiving space 26 is clearly larger than the tooth body surface 27. The area of ​​the second recess 23 (between the first tooth tip 10 and the second tooth tip 11) can also be counted as the receiving space 26. An area of ​​the receiving space 26 that is larger than a tooth body surface 27 can be advantageous for all wire accessories 1 according to the invention, even if the areas are only in Figure 1with the corresponding hatching. The position of the receiving space boundary 25 in the vertical direction y can be determined for all wire accessories according to the invention (ie according to all figures, also according to Figure 1 ) lie within the entire aforementioned range.

[0030] Figure 2 shows a symbolic view in the width direction z of a second clothing wire 1 according to the invention for a worker or doffer roll. The above description of the features of the clothing wire 1 of the Figure 1 applies to the Figure 2 in an identical manner is therefore not repeated again. The clothing wire 1 of the Figure 2 differs from the clothing wire 1 of the Figure 1- except for differing quantitative dimensions of the individual features - by exactly one first holding section 16 and exactly one further holding section 18, which are arranged in the tooth face 13 of the tooth body 7. In the height direction y above the first holding section 18 there is a tip section 14 which runs straight at a first working angle 15 to the height direction y. The first holding section 16 is also at least partially straight and runs to the height direction y at a holding angle 17 which is greater than the first working angle 15. The further holding section 18 is also at least partially straight and runs to the height direction y at the holding angle 17 which is greater than the angle to the height direction y at which the higher arranged intermediate section 19 runs.The holding angle 17 of the further holding section 18 is also larger than the angles that can be read below the further holding section 18 in the course of the tooth face 13. For clarification, the holding angle 17 of the first holding section 16 and the first working angle 15 of the tip section 14 are shown in an enlarged section of a tooth body to the right above the section shown. Figure 2 shown.

[0031] Figure 3 shows a symbolic view in the width direction of a clothing wire according to the invention for a Lickerin roller. The above description of the features of the clothing wire 1 of the Figure 1 applies to the Figure 3 in an identical manner is therefore not repeated again. The clothing wire 1 of the Figure 3 differs from the clothing wire 1 of the Figure 1- except for differing quantitative dimensions of the individual features - by a root section 2 which is designed for interlinked winding, which can be seen in particular in the cross-section shown on the right. The clothing wire can have the following dimensions: The root height 4 is 1.5 mm. The root height 4 can be between 1 mm and 2.2 mm for all clothing wires 1 according to the invention. The blade height 6 is 3.5 mm. The blade height 6 can be between 2 and 4 mm for all clothing wires 1 according to the invention. The pitch 9 is 2.7 mm. The pitch 9 can be between 1.5 mm and 5.5 mm for all clothing wires 1 according to the invention. The tooth tip spacing 12 is 0.75 mm. The tooth tip spacing 12 can be between 0.6 mm and 2.7 mm for all clothing wires 1 according to the invention. The first working angle 15 is 20°. The first working angle 15 can be between 0° and 60° for all clothing wires 1 according to the invention.The first tooth depth 20 is 2.5 mm. The first tooth depth 20 can be between 1 mm and 4 mm for all wire accessories 1 according to the invention. The second tooth depth 22 is 0.5 mm. The base width 24 is 2.12 mm.

[0032] Figure 4 shows a symbolic view in the width direction of a second clothing wire according to the invention for a Lickerin roller. The clothing wire of the Figure 4 differs essentially in the following dimensions from the wire set of the Figure 3 : The tooth tip distance 12 is 0.6mm and the first working angle 15 is 15°.

[0033] Figure 5 shows a symbolic view in the width direction of a clothing wire according to the invention for a cylinder of a carding machine. The above description of the features of the clothing wire 1 of the Figure 1 applies to the Figure 5 in an identical manner is therefore not repeated again. The clothing wire 1 of the Figure 5 differs from the clothing wire 1 of the Figure 1 and the clothing wires of the other figures - except for differing quantitative dimensions of the individual features - by a first tooth tip 10 and a second tooth tip 11, which do not have the same distance from the first tooth base 21 in the height direction y. The second tooth tip 11 is higher, accordingly the first tooth depth 20 is to be measured between the first tooth base 21 and the second tooth tip 11. The clothing wire can have the following dimensions: The root height 4 is 1.15 mm. The blade height 6 is 1.35 mm. The pitch 9 is 1.8 mm. The tooth tip spacing 12 is 0.44 mm. The first working angle 15 is 35°: The first tooth depth 20 is 1.1 mm. The second tooth depth 22 is 0.3 mm. The root width 24 is 0.9 mm.

[0034] Figure 6 shows an upper section of a tooth body 7 of a clothing wire 1 according to the invention. The tooth body 7 shown corresponds essentially to the tooth body 7 of the Figure 2. In the enlarged view of the Figure 6On the left you can see the first tooth tip 10 and the tip section 14, which is located above the first holding section 16. The first working angle 15 of the tip section 14 is also shown. It can be clearly seen that the tip section 14 is inclined more sharply in the direction of the longitudinal direction in its upper region adjacent to the first tooth tip 10 than in its further down region, which borders the first holding section. The second tooth tip 11 also has an upper region adjacent to the tooth tip 11, which is inclined more sharply in the direction of the longitudinal direction x at the second working angle 29 to the height direction y than a further down region, which borders the second tooth base. Such a more sharply inclined first tooth tip 10 and / or second tooth tip 11 is advantageous for all clothing wires 1 according to the invention.The range of greater inclination can be limited to, for example, 0.1 mm or to between 0.05 and 0.3 mm along the height direction y.

[0035] Figure 7 shows an upper section of a tooth body 7 of a further clothing wire 1 according to the invention. The tooth body 7 has, on the left from the top, a tip section 14, a first holding section 16 and a second holding section 18. The tooth body 7 further has a first tooth tip 10 and two second tooth tips 11. To clarify the definition of the tooth tip distance 12, this is shown by definition between the first tooth tip 10 and the second tooth tip 11 furthest away from it of this tooth body 7. At the right edge of the Figure 7 For clarity, the back angle 28 is symbolized. List of reference symbols 1 Clothing wire 2 Foot section 3 Bottom of the foot section (2) 4 Foot height 5 Leaf section 6 Leaf height 7 Tooth body 8 first recess 9 division 10 first tooth tip 11 second tooth tip 12 Tooth tip distance 13 first tooth breast 14 Top section 15 first working angle 16 first stopping section 17 Bracket 18 further stopping section 19 Intermediate section 20 first tooth depth 21 first tooth base 22 second tooth depth 23 second recess 24 Foot width 25 Recording room boundary 26 recording room 27 Tooth body surface 28 Back angle 29 second working angle x Longitudinal direction y Altitude direction z Latitude direction

Claims

1. Clothing wire (1) for a clothing carrier of a carding machine • which has a foot section (2) which is designed to be arranged with its underside (3), which is arranged at one end of the clothing wire (1) in the height direction (y) thereof, on the surface of a clothing carrier and which has a foot height (4) in the height direction (y), • and which has a blade section (5) on which the end of the clothing wire (1) opposite the underside (3) is formed in the height direction (y) and which has a blade height (6) in the height direction (y), wherein the blade height (6) is greater than the foot height (4), wherein the blade cut (5) has a plurality of identical tooth bodies (7) following one another in the longitudinal direction (x), wherein a tooth body (7) is arranged in the longitudinal direction (x) between two first recesses (8) of the blade section (5) which extend in the height direction (y) as far as possible in the direction of the foot section (2). extends,wherein the tooth bodies (7) are arranged spaced apart in the longitudinal direction (x) at a pitch (9), wherein a first tooth tip (10) and at least one second tooth tip (11) are arranged on each tooth body (7), wherein the first tooth tip (10) adjoins a first recess (8) and points in the direction of this first recess (8), , characterized in that on each tooth body (7) the first tooth tip (10) and the second tooth tip (11) located at the maximum distance from the first tooth tip (10) are arranged in the longitudinal direction (x) at a tooth tip distance (12) which is less than 50%, preferably less than 45%, particularly preferably less than 40% and most preferably less than 35% of the pitch (9).

2. Clothing wire (1) according to claim 1 characterized in thata first tooth face (13) of the tooth body (7), which is formed by the surface of the tooth body (7) that borders on the first recess (8) of the tooth body (7), is inclined in the direction of the foot section (2) or runs perpendicular to the longitudinal direction at least in a tip section (14) that borders on the first tooth tip (10), so that the first tooth face (13), viewed in a width direction (z) that is perpendicular to the longitudinal direction (x) and the height direction (y), encloses an acute first working angle (15) with the height direction (y).

3. Clothing wire (1) according to claim 2 characterized in that the first working angle (15) is between 0° and 60°, preferably between 20° and 60° and more preferably between 20° and 55°.

4. Clothing wire (1) according to claim 2 or 3 characterized in thatthe first tooth face (13) has a first holding section (16) adjacent to the tip section (14) which has an acute holding angle (17) to the height direction (y) which is greater than the first working angle (15) of the adjacent tip section (14).

5. Clothing wire (1) according to claim 4 characterized in that the first tooth face (13) has, following the tip section (14) and the first holding section (16), one or more further holding sections (17) with a larger acute holding angle (17) than an intermediate section (19) of the tooth face (13) adjacent in the direction of the first tooth tip (10).

6. Clothing wire (1) according to claim 4 or 5 characterized in that the acute holding angle (17) of the first holding section (16) and / or the further holding section(s) (18) is between 50° and 90°.

7. Clothing wire (1) according to one of the preceding claims characterized in thatthe first recess (8) of the blade section (5) comprises a first tooth base (21), which is a point closest to the foot section (2) in the height direction (y), and the tooth body (7) has a first tooth depth (20) which corresponds to the distance in the height direction (y) from the first tooth tip (10) or second tooth tip (11) arranged highest on the tooth body (7) to the first tooth base (21), and is less than or equal to the blade height (6).

8. Clothing wire (1) according to one of the preceding claims characterized in that first tooth depth (20) is equal to or greater than the root height (4).

9. Clothing wire (1) according to claim 7 or 8 characterized in that the first tooth depth (20) is between 1mm and 4mm and preferably between 1.4mm and 3.3mm.

10. Clothing wire (1) according to one of claims 7 to 9 characterized in thatthe distance in the height direction (y) from the first tooth base (21) to the first tooth tip (10) or the distance in the height direction (y) from the first tooth base (21) to a second tooth tip (11) differs between 0% and 30% or between 0% and 20%, preferably between 0% and 10% of the first tooth depth (20).

11. Clothing wire (1) according to one of claims 7 to 10 characterized in that a second tooth depth (22) in the height direction (y) of each second recess (23) which is adjacent to a second tooth tip (11) and in which the second tooth tip (11) points in the direction of the second recess (23) is between 0.5% and 50% or between 0.5% and 30% or between 0.5% and 20% of the first tooth depth (20).

12. Clothing wire (1) according to one of the preceding claims characterized in that a foot width (24), which is to be measured at the foot section (2) in the width direction (z), is from 0.5 mm to 3.5 mm, preferably from 0.65 mm to 1.3 mm.

13. Clothing carrier of a carding machine characterized by a clothing wire (1) according to one of claims 1 to 12.

14. Carding machine characterized by a clothing carrier according to claim 13.

15. Carding machine according to claim 14 characterized in that the clothing carrier is a worker roller or a doffer roller or a licker roller or the carding machine is a card and the clothing carrier of this card is a cylinder.

Images