Card clothing with finishing teeth

Abstract

The present application relates to a kind of carding clothing with finishing tooth, including base and the tooth portion being arranged above base, tooth portion includes carding tooth, the tooth back of each carding tooth is equipped with one finishing tooth;The tooth front of each finishing tooth is connected with the tooth back of the carding tooth where it is located, the tooth back of each finishing tooth is connected with the tooth front of one carding tooth on the back side of the carding tooth where it is located;The distance between the tip A of each finishing tooth and the lower surface of base is h1, the distance between the tip B of each carding tooth and the lower surface of base is h7, h1 is equal to h7;The working angle of each finishing tooth is α3, the working angle of each carding tooth is α4, α3 is less than α4.The carding clothing of the present application is simple in structure, effectively solves the problem of difficult carding caused by high content of fiber raw material bundle fiber, hard block and neps in the prior art.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of spinning carding, and relates to carding clothing with finishing teeth. BACKGROUND

[0002] The content of bundle fibers, hard blocks and neps in spinning waste is high, and in the recycling carding process, the spinning waste has the problems of too large tearing force, too many impurities, poor carding effect, and significant increase of short fibers. At present, there is no suitable carding solution for the spinning waste at home and abroad, and most enterprises treat the spinning waste as waste at a low price, which leads to high spinning cost. In view of the characteristics of the spinning waste, a reasonable carding clothing structure is designed to make the spinning waste become valuable and continue to be spun into high-quality yarn, which undoubtedly has important practical significance for production and cost control.

[0003] Patent CN103890252B discloses a clothing with improved tooth shape, which realizes higher fiber retention performance and transmission efficiency by forming one or more undercut portions on the front surface or the inner side surface of the protruding teeth of the clothing, and improves the fatigue resistance of the teeth.

[0004] Patent CN112981620B discloses a curved working surface metal clothing, the sawtooth front tooth surface is composed of three sections of straight line inclined surface, convex arc surface and concave arc surface, which reduces the force concentration of the fiber on the second point of the working edge, and improves the hardness and strength of the second point of the working edge, which is beneficial to the transfer of the fiber at this point and improves the service life of the teeth.

[0005] Patent CN106319692B discloses a clothing for a rotor spinning carding roller, the tooth profile unit has two side surfaces of inclined surface and curved surface respectively, the curved surface is connected by a convex arc surface away from the base fabric and a concave arc surface close to the base fabric, and the shape combination of the convex arc surface and the inclined surface forms a hawk beak shape. The disclosed clothing for the rotor spinning carding roller can reduce the damage to the raw fibers during the spinning of the rotor spinning.

[0006] The above clothing improves the fiber carding transfer effect and reduces the fatigue of the clothing by different tooth shape designs of the front working surface of the clothing teeth. However, for the fiber raw materials such as bundle fibers, hard blocks and neps with high content, there are still problems of poor carding effect and large damage to the fibers and the clothing. SUMMARY

[0007] The present application aims to solve the problems in the prior art, and provides a carding clothing with finishing teeth, which solves the problem of difficult carding caused by high content of bundle fibers, hard blocks and neps in the fiber raw materials, and maximally protects the carding teeth.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0009] The carding cloth with finishing teeth comprises a base and a tooth part arranged above the base, the tooth part comprises carding teeth, and each carding tooth is provided with a finishing tooth on the tooth back surface thereof;

[0010] The tooth front surface of each finishing tooth is transitionally connected with the tooth back surface of the carding tooth where the finishing tooth is located, and the tooth back surface of each finishing tooth is transitionally connected with the tooth front surface of a carding tooth on the rear side of the carding tooth where the finishing tooth is located;

[0011] The distance between the tooth tip A of each finishing tooth and the lower surface of the base is h1, the distance between the tooth tip B of each carding tooth and the lower surface of the base is h7, and h1 is equal to h7;

[0012] The working angle (the included angle between the tangent of the tooth front surface at the tooth tip and the vertical line of the lower surface of the base) of each finishing tooth is α3, and the working angle of each carding tooth is α4, and α3 is less than α4.

[0013] In order to deal with the damage of clumps, dead knots and foreign matters in the waste fibers to the needle teeth, and improve the carding effect of the waste fibers containing excessive neps, short fibers and impurities, the finishing teeth specially designed are arranged on the tooth back surface of the conventional carding cloth needle teeth, the clumped fibers, hard blocks and neps are preliminarily opened and oriented by the finishing teeth, then the fibers after the preliminary opening and orientation are further carded by the carding teeth, the carding degree is increased, the soft carding reduces the short fibers, and the neps, short fibers and impurities are transferred, so that the good carding effect is realized, and the damage of the needle teeth is reduced.

[0014] The finishing teeth are arranged on the tooth back surface of the carding teeth, and are mainly designed according to the characteristics of the waste fibers, such as serious entanglement, many clumped fibers and hard blocks, fiber fatigue and high short fibers, the functions of the finishing teeth are to preliminarily loosen the clumped neps before the carding teeth, to enhance the directional carding, and to increase the ability of impurity removal and short fiber transfer.

[0015] The distance between the tooth tip B of the finishing teeth and the lower surface of the base is designed to be equal to the distance between the tooth tip B of the carding teeth and the lower surface of the base, so that the finishing teeth and the carding teeth can obtain the same flat carding gauge, the hard blocks, neps, short fibers and impurities in the waste fiber layer are more easily held by the flat in the tight gauge state, so that the efficient transfer of the impurities is realized, and the finishing teeth can fully participate in the opening, impurity removal, preliminary carding and preliminary orientation of the fiber layer, the carding strength of the carding teeth is reduced, so that the flexible carding is realized, and the further damage of the already fatigued fibers of the waste is prevented.

[0016] The working angle of the arranging teeth is smaller than that of the carding teeth, so the arranging teeth have weak holding force on the fibers, and thus the fibers are not damaged. The smaller working angle is also beneficial to removing impurities and transferring fibers. The larger working angle of the carding teeth is beneficial to improving the holding force on the fibers and strengthening the carding. The combined carding mode of the arranging teeth and the carding teeth can achieve good carding effect on the fiber materials with high impurity content, high content of fiber bundles, hard blocks and high neps, and reduce the damage to the fibers and the carding cloth during the carding process.

[0017] The carding cloth with arranging teeth as described above, the included angle between the tangent of the front face of each arranging tooth at each position and the lower surface of the base gradually increases from the tip to the root, which can improve the ability of the fibers to move and transfer to the tip of the tooth, prevent the fibers from sinking into the gap, and improve the anti-winding ability of the needle teeth. Meanwhile, the distance from the tip to the base of the arranging teeth is small, and the shallow teeth have small fiber capacity and light load on the needle surface, and thus the damage to the needle teeth is reduced.

[0018] The carding cloth with arranging teeth as described above, h1 is 1.8-2.0 mm.

[0019] The carding cloth with arranging teeth as described above, α3 is 0°-15°, and α4 is 25°-40°.

[0020] The carding cloth with arranging teeth as described above, the rake angle δ3 (i.e. the included angle between the tangent of the front face of each arranging tooth at the tip and the lower surface of the base) is 75°-105°, and the tip angle β3 (i.e. the included angle between the front face and the back face) is 60°-95°; the rake angle δ4 of each carding tooth is 50°-65°, and the tip angle β4 is 50°.

[0021] The arranging teeth have a larger rake angle, which is beneficial to grasping and opening the waste fibers, removing impurities and transferring fibers, and achieving the purpose of arranging the materials with high impurity content, fiber bundles, hard blocks and high neps content. When the fiber layer is carded and transferred between the cylinder and the flat, the dead knots and fiber bundles of the waste fibers are more likely to slide along the tangential working surface to the flat under the resistance of the arranging teeth, thereby preventing the needle cloth from being torn and the needle teeth from being broken due to excessive tearing force. Secondly, the high-content fiber bundles and hard blocks are more easily thrown to the flat needle cloth under the centrifugal force of the cylinder, thereby reducing the carding load of the cylinder. Most of the useful but disordered fibers are gradually arranged and pre-carded by the arranging teeth, and gradually enter the ordered state, thereby reducing the carding load of the arranging teeth and creating conditions for further carding of the arranging teeth.

[0022] The carding cloth with the arranging teeth has a tooth front face of each arranging tooth, a tooth back face of each arranging tooth, a tooth front face of each carding tooth, and a tooth back face of each carding tooth, which are all arc faces.

[0023] The carding cloth with the arranging teeth has a tooth front face of each arranging tooth and a tooth back face of each arranging tooth, which are connected through arc tangential transition connection.

[0024] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0025] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0026] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0027] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0028] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0029] The carding cloth with the arranging teeth has a tooth tip A of each arranging tooth and L1, and a tooth tip A of each arranging tooth and L2, which are connected through arc tangential transition connection.

[0030] Beneficial effects:

[0031] (1) The arranging teeth are arranged on the tooth back face of the carding tooth, and the arranging teeth are connected through arc tangential transition connection.

[0032] (2) The present application increases the carding effect of fiber raw materials such as waste materials with high content of bundle fibers, hard blocks and neps, reduces the generation of short fibers, and improves the spinnability of such raw materials through the combination of finishing teeth and carding teeth.

[0033] (3) The present application reduces the carding strength of carding teeth to achieve the purpose of reducing the damage of pin teeth through the combination of finishing teeth and carding teeth. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a comparison diagram of the carding clothing of the present application and the carding clothing in the prior art; wherein a is a diagram of the carding clothing in the prior art, and b is a diagram of the carding clothing of the present application;

[0035] Figure 2 It is a structural diagram of the carding clothing with finishing teeth of the present application;

[0036] Figure 3 It is a structural size diagram of the carding clothing with finishing teeth of the present application; wherein a is a front view of the carding clothing, and b is a side view of the carding clothing;

[0037] Figure 4 It is a tooth shape enlarged diagram of the finishing teeth; wherein a is an enlarged diagram of the finishing teeth when the rake angle δ3≤90°, and b is an enlarged diagram of the finishing teeth when the rake angle δ3>90°;

[0038] Wherein 1 is a base, 2 is a tooth part, 3 is a finishing tooth, and 4 is a carding tooth. DETAILED DESCRIPTION

[0039] The present application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the claims attached hereto.

[0040] The following is the test method of the performance in the examples:

[0041] CV value of yarn evenness: tested according to the standard of GB / T 3292.1-2008 "Textiles. Yarn evenness test methods. Part 1: Capacitance method";

[0042] Neps: tested by visual detection method: take 1g of sliver sample, arrange the cotton sliver into a uniform cotton web, lay it on a ground glass plate, and under the ground glass, lay a layer of black paper, and count the number of neps by visual detection;

[0043] Short fiber rate and average fiber length: refer to GB / T 6098-2018 "Cotton fiber length test method roller analyzer method".

[0044] A carding cloth with finishing teeth, as shown in Figure 1 (b), comprising a base and a tooth part arranged above the base 1, the tooth part comprising carding teeth 4, and each carding tooth 4 is provided with a finishing tooth 3 on the tooth back surface thereof;

[0045] As shown in Figure 3 (b), the width b1 of the base is 0.4-0.6mm;

[0046] The tooth front surface of each finishing tooth, the tooth back surface of each finishing tooth, the tooth front surface of each carding tooth, and the tooth back surface of each carding tooth are all circular arc surfaces;

[0047] The tooth front surface of each finishing tooth and the tooth back surface of the carding tooth where it is located are connected through a circular arc tangential transition connection, and the lowest position of the circular arc tangential transition connection is recorded as L1;

[0048] The tooth back surface of each finishing tooth and the tooth front surface of one carding tooth on the rear side of the carding tooth where it is located are connected through a circular arc tangential transition connection, and the lowest position of the circular arc tangential transition connection is recorded as L2;

[0049] As shown in Figure 3 (a), in the direction parallel to the vertical line of the lower surface of the base, the distance h2 between the tooth tip A of each finishing tooth and L1 is 0.12-0.18mm, and the distance h6 between the tooth tip A of each finishing tooth and L2 is 0.35-0.45mm;

[0050] In the direction parallel to the lower surface of the base, the distance p between the tooth tips A of two adjacent finishing teeth is 1.8-2.0mm, and the distance p2 between the tooth tip A of each finishing tooth and the tooth tip B of the carding tooth where it is located is 0.75-0.85mm;

[0051] The tooth part width b2 of each finishing tooth is 0.16mm, the tooth top width b3 is 0.06-0.08mm, and the distance h1 between the tooth tip and the lower surface of the base is 1.8-2.0mm;

[0052] The tangent at each position of the tooth front surface of each finishing tooth gradually increases in angle with the lower surface of the base in the direction from the tooth tip to the tooth root;

[0053] The working angle α3 of each finishing tooth is 0°-15°, the rake angle δ3 is 75°-105°, and the tooth tip angle β3 is 60°-95°;

[0054] As shown in Figure 2 , the tooth front surface circular arc radius R3 of each finishing tooth is 0.12mm, and the tooth back surface circular arc radius R3' of each finishing tooth is 2.0mm;

[0055] The tooth width of each carding tooth is 0.16 mm, the tooth top width is 0.06-0.08 mm, the distance between the tooth tip and the lower surface of the base is h7, and h7 is equal to h1;

[0056] The working angle α4 of each carding tooth is 25-40°, the rake angle δ4 is 50-65°, and the tooth tip angle β4 is 50°;

[0057] The rake face arc radius R4 of each carding tooth is 0.2 mm, and the back face arc radius R4' of each carding tooth is 1.0 mm.

[0058] The carding clothing with finishing teeth is made of Belgian alloy steel wire, and the surface is coated with an ultra-hard composite coating.

[0059] Example 1

[0060] A carding clothing with finishing teeth has the same structure as above, wherein: the total height h1 of the finishing teeth is 1.8 mm, which is equal to the height of the carding teeth; the distance h2 between the tooth tip A of each finishing tooth and the bottom L1 of the finishing tooth is 0.12 mm, and the distance h6 between the tooth tip A of each finishing tooth and the bottom L2 of the carding tooth is 0.35 mm;

[0061] The width b1 of the base of the finishing tooth is 0.5 mm, the tooth width b2 of each finishing tooth is 0.16 mm, and the tooth top width b3 is 0.07 mm; the tooth width of each carding tooth is 0.16 mm, and the tooth top width is 0.07 mm;

[0062] The distance p between the tooth tips A of two adjacent finishing teeth is 1.8 mm, and the distance p2 between the tooth tip A of each finishing tooth and the tooth tip B of the carding tooth where the finishing tooth is located is 0.75 mm;

[0063] The working angle α3 of each finishing tooth is 0°, the rake angle δ3 is 90°, and the tooth tip angle β3 is 79°;

[0064] The working angle α4 of each carding tooth is 25°, the rake angle δ4 is 65°, and the tooth tip angle β4 is 50°;

[0065] The rake face arc radius R3 of each finishing tooth is 0.12 mm, and the back face arc radius R3' of each finishing tooth is 2.0 mm;

[0066] The rake face arc radius R4 of each carding tooth is 0.2 mm, and the back face arc radius R4' of each carding tooth is 1.0 mm;

[0067] The carding clothing with finishing teeth is made of Belgian alloy steel wire (manufacturer: Bekaert Group, brand: SUPER alloy steel wire), and the surface is coated with an ultra-hard nano diamond plating layer and a nickel plating layer composite coating.

[0068] A carding method of fiber material, using the carding clothing with arranging teeth of the embodiment, the fiber material is the waste fiber from the waste picker, the carding flat waste and the waste fiber from the carding picker of the viscose (specification 1.33 dtex x 38 mm) produced by Fujian Saidele Fiber Co., Ltd. after spinning;

[0069] The cotton carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the fiber material in the example;

[0070] The process parameters of carding are that the sliver dry weight is 4.5 g / m, the cylinder speed is 415 rpm, the taker-in speed is 760 rpm, the flat speed is 130 mm / min, and the sliver speed is 110 m / min;

[0071] The carding gauge process parameters (English silk) are that the cylinder-flat five-point gauges (from back to front) are 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk, the taker-in-cylinder gauge is 7 silk, the cylinder-doffer gauge is 5 silk, the distance between the back fixed flat and the cylinder (from bottom to top) is 24 silk, 22 silk, 20 silk, 18 silk, and 16 silk, and the distance between the front fixed flat and the cylinder (from top to bottom) is 10 silk, 9 silk, 8 silk, and 8 silk.

[0072] Comparative Example 1

[0073] A carding clothing is basically the same as Example 1, and the difference is only that it does not have arranging teeth, as shown in Figure 1 (a).

[0074] A carding method of fiber material is basically the same as Example 1, and the difference is only that the carding clothing of Comparative Example 1 is used.

[0075] The fiber materials of Example 1 and Comparative Example 1 are carded according to the same process, and the sliver quality comparison is shown in Table 1. The sliver CV value, neps, short fiber content, and fiber average length of Example 1 are all significantly better than those of Comparative Example 1.

[0076] Table 1

[0077] Card clothing Top CV / % Neps (gr / g) Flyer waste / % Average fibre length / mm Comparative Example 1 4.3 3 7.6 36.1 Example 1 3.6 1 6.3 37.2

[0078] The above quality parameters are obtained by USTER® ME100 strip evenness tester and Y111A roller-type fiber length analyzer test, respectively. Comparing the damage of the card clothing of Example 1 and Comparative Example 1, it can be seen that the tooth shape of the card clothing in Comparative Example 1 has embedded flowers or inclusions, and the tooth tip has breakage or bending phenomenon. However, the card clothing of Example 1 has increased the design of the finishing tooth shape, which can effectively deal with the bundled fibers, impurities and hard blocks, has high efficiency of transfer and impurity removal, and the finishing tooth shape also has the preliminary opening and pre-combing ability, which prevents the waste fibers from being torn off due to excessive tearing force. Therefore, the card clothing of Example 1 has a relatively clean tooth surface, without embedded flowers or inclusions, and the tooth tip has no breakage or bending phenomenon.

[0079] Example 2

[0080] A card clothing with finishing teeth, which has the same structure as above, wherein: the total height h1 of the finishing teeth is 2.0 mm, which is the same as the card teeth; the distance h2 between the tooth tip A of each finishing tooth and the bottom L1 of the finishing tooth is 0.15 mm, and the distance h6 between the tooth tip A of each finishing tooth and the bottom L2 of the card tooth is 0.4 mm;

[0081] The width b1 of the base of the finishing tooth is 0.4 mm, the width b2 of the tooth of each finishing tooth is 0.16 mm, and the width b3 of the tooth top is 0.06 mm; the width of the tooth of each card tooth is 0.16 mm, and the width of the tooth top is 0.06 mm;

[0082] The distance p between the tooth tips A of two adjacent finishing teeth is 1.8 mm, and the distance p2 between the tooth tip A of each finishing tooth and the tooth tip B of the card tooth where it is located is 0.75 mm;

[0083] As shown in Figure 4 (a), the working angle a3 of each finishing tooth is 15°, the rake angle d3 is 75°, and the tooth tip angle b3 is 60°;

[0084] The working angle a4 of each card tooth is 30°, the rake angle d4 is 60°, and the tooth tip angle b4 is 50°;

[0085] The rake face arc radius R3 of each finishing tooth is 0.12 mm, and the back face arc radius R3' of each finishing tooth is 2 mm;

[0086] The rake face arc radius R4 of each card tooth is set to 0.2 mm, and the back face arc radius R4' of each card tooth is set to 1.0 mm;

[0087] The card clothing with finishing teeth is made of Belgian alloy steel wire (manufacturer: Bekart Group, brand: SUPER alloy steel wire), and the surface is coated with a composite coating of super-hard nanometer diamond plating and nickel plating.

[0088] A carding method of fiber material, using the carding clothing with the arranged teeth of the embodiment, the fiber material is the waste fiber produced by the spinning of Lyocell (specification 1.33 dtex x 38 mm) produced by Jiangxi Saide Li Fiber Co., Ltd.

[0089] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above fiber material.

[0090] The process parameters of carding are: the lap dry weight is 4.5 g / m, the cylinder speed of the machine process is 415 rpm, the taker-in speed is 760 rpm, the flat speed is 250 mm / min, and the sliver growth speed is 100 m / min.

[0091] The machine carding gauge process parameters (English silk) are: the five-point gauge of the cylinder-flat (from back to front) is 8 silk, 7 silk, 7 silk, 7 silk, and 7 silk, the taker-in-cylinder gauge is 7 silk, the cylinder-doffer gauge is 5 silk, the distance between the back fixed flat and the cylinder (from bottom to top) is 24 silk, 22 silk, 20 silk, 18 silk, and 16 silk, and the distance between the front fixed flat and the cylinder (from top to bottom) is 10 silk, 9 silk, 8 silk, and 8 silk.

[0092] Comparative Example 2

[0093] A carding clothing, which is basically the same as Example 2, except that it does not have arranged teeth, as shown in Figure 1 (a).

[0094] A carding method of fiber material, which is basically the same as Example 2, except that the carding clothing of Comparative Example 2 is used.

[0095] The fiber materials of Example 2 and Comparative Example 2 are carded according to the same process, and the sliver quality comparison is shown in Table 2. The sliver CV value, neps, short fiber content, and fiber average length of Example 2 are significantly better than those of Comparative Example 2.

[0096] Table 2

[0097]

[0098]

[0099] Comparing the damage of the carding clothing of Example 2 and Comparative Example 2, the tooth shape of the carding clothing of Comparative Example 2 has hard bundles or impurities embedded between the needle teeth, and the tooth tips are broken or bent. However, due to the transfer, impurity removal, and pre-carding ability of the arranged teeth of the carding clothing of Example 2, the carding environment is greatly improved, thereby reducing the damage of the carding needle teeth by the bundles, hard blocks, or impurities, and making the carding clothing of Example 2 have a smooth and undamaged tooth surface.

[0100] Example 3

[0101] A carding cloth with finishing teeth has the same structure as above, wherein the total height of the finishing teeth is 1.8 mm, which is the same as the height of the carding teeth, the distance h2 between the tip A of each finishing tooth and the bottom L1 of the finishing tooth is 0.15 mm, and the distance h6 between the tip A of each finishing tooth and the bottom L2 of the carding tooth is 0.40 mm.

[0102] The width b1 of the base of the finishing tooth is 0.4 mm, the width b2 of each finishing tooth is 0.16 mm, and the width b3 of the tooth tip is 0.06 mm; the width of each combing tooth is 0.16 mm and the width of the tooth tip is 0.06 mm.

[0103] The distance p between the tips A of two adjacent finishing teeth is 1.8 mm, and the distance p2 between the tip A of each finishing tooth and the tip B of the combing tooth it belongs to is 0.75 mm.

[0104] like Figure 4 As shown in (b), the working angle α3 of each tooth is 15°, the rake angle δ3 is 105°, and the cusp angle β3 is 95°;

[0105] The working angle α4 of each combing tooth is 25°, the rake angle δ4 is 65°, and the cusp angle β4 is 50°;

[0106] The radius of the arc on the front of each finishing tooth, R3, is 0.12 mm, and the radius of the arc on the back of each finishing tooth, R3', is 2 mm.

[0107] The radius of the arc on the front of each comb tooth, R4, is set to 0.2 mm, and the radius of the arc on the back of each comb tooth, R4', is set to 1.0 mm.

[0108] The combing needles with combing teeth are made of Belgian alloy steel wire (manufactured by Bekaert Group, grade SUPER alloy steel wire), and the surface is coated with a composite coating of ultra-hard nano-diamond and nickel plating.

[0109] A method for combing fiber raw materials, using a combing card cloth with combing teeth as described in this embodiment, wherein the fiber raw material is fine denier viscose fiber (specification 1.0dtex×38mm) produced by Fujian Sateri Fiber Co., Ltd., which is produced after spinning the opening bobbin, carding cover bobbin, and carding bobbin waste fiber.

[0110] This example uses a carding machine (Hengda Qingdao Textile Machinery JWF1211) to comb the above-mentioned fiber raw materials;

[0111] The process parameters for combing are as follows: the raw sliver weight is 4.5 g / m, the cylinder speed is 380 rpm, the licker-in speed is 690 rpm, the cover plate speed is 250 mm / min, and the sliver growth speed is 85 m / min.

[0112] Carding gauge process parameters (English silk): the five-point gauge of the cylinder to the flat from back to front is 8 silk, 7 silk, 7 silk, 7 silk, 7 silk, the gauge of the carding roller to the cylinder is 7 silk, the gauge of the cylinder to the doffer is 5 silk, the distance between the back fixed flat and the cylinder from bottom to top is 24 silk, 22 silk, 20 silk, 18 silk, 16 silk, the distance between the front fixed flat and the cylinder from top to bottom is 10 silk, 9 silk, 8 silk, 8 silk.

[0113] Comparative Example 3

[0114] A carding clothing, which is basically the same as that of Example 3, except that it does not have the finishing teeth, as shown in Figure 1 (a).

[0115] A carding method of fiber raw material, which is basically the same as that of Example 3, except that the carding clothing of Comparative Example 3 is used.

[0116] The fiber raw materials of Example 3 and Comparative Example 3 are carded according to the same process, and the quality of the slivers obtained is shown in Table 3. The sliver evenness CV value, neps, short fiber content, and fiber average length of Example 3 are all significantly better than those of Comparative Example 3.

[0117] Table 3

[0118] Card clothing Top CV / % Neps / gr / g Flyer waste / % Average fibre length / mm Comparative Example 3 4.8 4 7.1 36.8 Example 3 3.5 2 6.4 37.3

[0119] Comparing the damage of the carding clothing of Example 3 and Comparative Example 3, it can be seen that in Comparative Example 3, the tooth shape of the carding clothing has hard blocks or impurities embedded between the teeth, and the tooth tips are broken or bent. However, in Example 3, the finishing tooth shape has a high efficiency in transferring short fibers, neps, and impurities, greatly reducing the carding load of the clothing, and thus reducing the damage of the carding clothing of Example 3 to the teeth.

[0120] Example 4

[0121] A carding clothing with finishing teeth, which has the same structure as above, wherein: the total height h1 of the finishing teeth is 2.0 mm, which is the same as the carding teeth, the distance h2 between the tooth tip A of each finishing tooth and the bottom L1 of the finishing tooth is 0.18 mm, the finishing tooth and the carding tooth are the same height, and the distance h6 between the tooth tip A of each finishing tooth and the bottom L2 of the carding tooth is 0.45 mm.

[0122] The width b1 of the base of the finishing tooth is 0.6 mm, the tooth width b2 of each finishing tooth is 0.16 mm, and the tooth top width b3 is 0.08 mm; the tooth width of each carding tooth is 0.16 mm, and the tooth top width is 0.08 mm.

[0123] The distance p between the tooth tips A of two adjacent finishing teeth is 2.0 mm, and the distance p2 between the tooth tip A of each finishing tooth and the tooth tip B of the carding tooth where the finishing tooth is located is 0.85 mm;

[0124] The working angle a3 of each finishing tooth is 10°, the rake angle d3 is 100°, and the tooth tip angle b3 is 85°;

[0125] The working angle a4 of each carding tooth is 40°, the rake angle d4 is 50°, and the tooth tip angle b4 is 50°;

[0126] The rake face arc radius R3 of each finishing tooth is 0.12 mm, and the tooth back face arc radius R3' of each finishing tooth is 2 mm;

[0127] The rake face arc radius R4 of each carding tooth is set to 0.2 mm, and the tooth back face arc radius R4' of each carding tooth is set to 1.0 mm;

[0128] The carding clothing with finishing teeth is made of Belgian alloy steel wire (manufacturer: Bekart Group, brand: SUPER alloy steel wire), and the surface is coated with a super-hard nanometer diamond plating layer and a nickel plating layer composite coating.

[0129] A carding method for a fiber raw material, which uses the carding clothing with finishing teeth of the embodiment, and the fiber raw material is the waste fiber of the lap top, the carding flat waste, and the carding lap after spinning of the polyester staple fiber (specification 1.33 dtex x 38 mm) produced by Jiangyin Yirun Chemical Fiber Textile Co., Ltd.

[0130] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw material;

[0131] The process parameters of the carding are as follows: the dry weight of the sliver is 6 g / m, the cylinder speed of the machine process is 415 rpm, the speed of the licker-in is 760 rpm, the speed of the flat is 120 mm / min, and the speed of the growing sliver is 120 m / min;

[0132] The process parameters of the carding machine (inches) are as follows: the five-point distance between the cylinder and the flat (from back to front) is 9, 8, 8, 8, and 8, respectively, the distance between the licker-in and the cylinder is 7, the distance between the cylinder and the doffer is 5, the distance between the rear fixed flat and the cylinder (from bottom to top) is 26, 24, 22, 20, and 18, respectively, and the distance between the front fixed flat and the cylinder (from top to bottom) is 10, 10, 9, and 9, respectively.

[0133] Comparative Example 4

[0134] A carding clothing, which is basically the same as that of Example 4, except that it does not have finishing teeth, as shown in Figure 1 (a).

[0135] A carding method of a fiber material substantially the same as Example 4, except that the carding clothing of Comparative Example 4 is used.

[0136] The fiber materials of Example 4 and Comparative Example 4 are carded by the same process, and the sliver quality comparison is shown in Table 4. The sliver evenness CV value, neps, short fiber content, and average fiber length of Example 4 are all significantly better than those of Comparative Example 4.

[0137] Table 4

[0138] Card clothing Top CV / % Neps / gr / g Flyer waste / % Average fibre length / mm Comparative Example 4 4.2 3 7.8 37.0 Example 4 3.4 1 6.5 37.6

[0139] Comparing the damage of the carding clothing of Example 4 and Comparative Example 4, the tooth shape of the carding clothing of Comparative Example 4 has a bundle of short polyester fibers, hard blocks, and other impurities embedded between the teeth, and the tooth tips are severely broken or bent. The carding clothing of Example 4 has a high efficiency of transferring the bundle of short fibers, hard blocks, and impurities, greatly reducing the carding load of the carding clothing, and as the base thickness and tooth spacing increase, the damage of the carding clothing by the bundle of short fibers, hard blocks, and impurities is further reduced, so the carding clothing of Example 4 has no broken or bent tooth tips.

[0140] Example 5

[0141] A carding clothing with finishing teeth, which has the same structure as above, wherein: the total height h1 of the finishing teeth is 1.8 mm, which is the same as the carding teeth; the distance h2 between the tooth tip A of each finishing tooth and the bottom L1 of the finishing tooth is 0.12 mm, and the distance h6 between the tooth tip A of each finishing tooth and the bottom L2 of the carding tooth is 0.35 mm;

[0142] The width b1 of the base of the finishing tooth is 0.5 mm, the width b2 of the tooth of each finishing tooth is 0.16 mm, and the width b3 of the tooth tip is 0.07 mm; the width of the tooth of each carding tooth is 0.16 mm, and the width of the tooth tip is 0.07 mm;

[0143] The distance p between the tooth tips A of two adjacent finishing teeth is 1.8 mm, and the distance p2 between the tooth tip A of each finishing tooth and the tooth tip B of the carding tooth where it is located is 0.75 mm;

[0144] The working angle a3 of each finishing tooth is 0°, the rake angle d3 is 90°, and the tooth tip angle b3 is 79°;

[0145] The working angle a4 of each carding tooth is 25°, the rake angle d4 is 65°, and the tooth tip angle b4 is 50°;

[0146] The radius R3 of the rake face of each finishing tooth is 0.12 mm, and the radius R3' of the back face of each finishing tooth is 2.0 mm;

[0147] The front face radius of each carding tooth is 0.2 mm, and the back face radius of each carding tooth is 1.0 mm.

[0148] The carding cloth with carding teeth is made of Belgian alloy steel wire (manufacturer: Bekart Group, brand: SUPER alloy steel wire), and the surface is coated with a super-hard nanodiamond plating layer and a nickel plating layer composite coating.

[0149] A carding method of a fiber raw material, which uses the carding cloth with carding teeth of the embodiment, and the fiber raw material is waste fiber produced after spinning of modal (specification 1.33 dex x 38 mm) produced by Fujian Saidele Fiber Co., Ltd.

[0150] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw material.

[0151] The process parameters of carding are as follows: the sliver dry weight is 4.5 g / m, the cylinder speed is 415 rpm, the barbed roller speed is 760 rpm, the flat speed is 250 mm / min, and the sliver growth speed is 100 m / min.

[0152] The carding gauge process parameters (English silk) are as follows: the cylinder~flat five-point gauge (from back to front) is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk, respectively, the barbed roller~cylinder gauge is 7 silk, the cylinder~doffer gauge is 5 silk, the distance between the rear fixed flat and the cylinder (from bottom to top) is 24 silk, 22 silk, 20 silk, 18 silk, and 16 silk, respectively, and the distance between the front fixed flat and the cylinder (from top to bottom) is 10 silk, 9 silk, 8 silk, and 8 silk, respectively.

[0153] Comparative Example 5

[0154] A carding cloth, which is basically the same as Example 5, except that the total height h7 of the carding teeth is 2.0 mm.

[0155] A carding method of a fiber raw material, which is basically the same as Example 5, except that the carding cloth of Comparative Example 5 is used.

[0156] The fiber raw materials of Example 5 and Comparative Example 5 are carded according to the same process, and the sliver quality comparison is shown in Table 5. The sliver CV value, neps, short fiber content, and fiber average length of Example 5 are all significantly better than those of Comparative Example 5.

[0157] Table 5

[0158] Card clothing Top CV / % Neps / gr / g Flyer waste / % Average fibre length / mm Comparative Example 5 4.1 3 7.0 36.7 Example 5 3.6 2 6.5 37.4

Claims

1. A carding wire having a carding tooth comprising a base portion and a tooth portion disposed above the base portion, the tooth portion comprising a carding tooth, characterized in that, The back of each carding tooth is provided with a finishing tooth; The front of each finishing tooth is connected to the back of the carding tooth where the finishing tooth is located, and the back of each finishing tooth is connected to the front of a carding tooth on the back side of the carding tooth where the finishing tooth is located; The distance between the tip A of each finishing tooth and the lower surface of the base is h1, and the distance between the tip B of each carding tooth and the lower surface of the base is h7, h1 is equal to h7; The working angle of each finishing tooth is α3, and the working angle of each carding tooth is α4, α3 is less than α4; The front of each finishing tooth, the back of each finishing tooth, the front of each carding tooth, and the back of each carding tooth are all circular arc surfaces; the front of each finishing tooth is connected to the back of the carding tooth where the finishing tooth is located through a circular arc tangential transition, and the lowest position of the circular arc tangential transition is recorded as L1; the back of each finishing tooth is connected to the front of a carding tooth on the back side of the carding tooth where the finishing tooth is located through a circular arc tangential transition, and the lowest position of the circular arc tangential transition is recorded as L2; in the direction parallel to the vertical line of the lower surface of the base, the distance h2 between the tip A of each finishing tooth and L1 is 0.12-0.18 mm, and the distance h6 between the tip A of each finishing tooth and L2 is 0.35-0.45 mm; The width b1 of the base is 0.4-0.6 mm; the tooth width b2 of the finishing tooth is 0.16 mm, and the crest width b3 is 0.06-0.08 mm; the tooth width of the carding tooth is 0.16 mm, and the crest width is 0.06-0.08 mm.

2. A card clothing with finishing teeth according to claim 1, characterized in that, The tangent at each position of the front of each finishing tooth gradually increases in the direction from the tip to the root of the tooth.

3. A card clothing with finishing teeth according to claim 1, characterized in that, h1 is 1.8-2.0 mm.

4. A card clothing with finishing teeth according to claim 1, characterized in that, α3 is 0°-15°, and α4 is 25°-40°.

5. A card clothing with finishing teeth according to claim 1, characterized in that, The rake angle δ3 of each finishing tooth is 75°-105°, and the tip angle β3 is 60°-95°; the rake angle δ4 of each carding tooth is 50°-65°, and the tip angle β4 is 50°.

6. A card clothing with finishing teeth according to claim 1, characterized in that, In the direction parallel to the lower surface of the base, the distance p between the tips A of two adjacent finishing teeth is 1.8-2.0 mm, and the distance p2 between the tip A of each finishing tooth and the tip B of the carding tooth where the finishing tooth is located is 0.75-0.85 mm.

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