A progressive multi-stage carding cloth

Abstract

The present application relates to a kind of progressive multistage carding clothing, including base and the tooth part being arranged above base;Tooth part includes main carding tooth, the tooth front of each main carding tooth is equipped with one auxiliary carding tooth, the back of each main carding tooth is equipped with one finishing tooth;The rake angle of each finishing tooth is δ3, the rake angle of each auxiliary carding tooth is δ4, the rake angle of each main carding tooth is δ5, δ3, δ4, δ5 decrease;The distance of the tip of each main carding tooth C and the lower surface of base and the distance of the tip of each finishing tooth A and the lower surface of base are h1, the distance of the tip of each auxiliary carding tooth B and the lower surface of base are h2, h2 is less than h1;The tip of each auxiliary carding tooth B is located in the tip of the main carding tooth where it is located C front side, the distance of both is L1.The present application can solve the problem of the prior art in the mixed spinning waste material fiber bundle, hard block, impurity, high short fibre rate, fiber fatigue damage, while there are different fiber performance difference, different fiber transfer capacity.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of spinning carding, and relates to a progressive multi-stage carding clothing. BACKGROUND

[0002] Spinning waste has important utilization value as a recycling textile raw material. With the development and application of new fibers, various types of blended yarn products are increasing, and the demand for recycling of mixed waste is also increasing. However, there are problems in the recycling process of waste, such as difficulty in removing neps and impurities, high tearing force, easy generation of short fibers, and broken teeth. In addition, the mixed waste raw material made of several fibers has problems such as large difference in fiber performance, different fiber transfer ability, and incomplete carding.

[0003] Patent CN102242422B discloses a high-density carding metal clothing, which includes a main carding tooth with a base protrusion, and a side tooth with a tooth height lower than the main carding tooth, which is formed by a tooth side protrusion of the main carding tooth facing the carding direction. The carding tooth density of the metal clothing is increased by more than 30%.

[0004] Patent CN205653546U discloses a unequal-distance unequal-working-angle cylinder clothing, in which the tooth tip distance of adjacent two teeth is set as unequal distance, and the working angle of adjacent two teeth is set as unequal angle. The above settings improve the fiber penetration ability and reduce the fiber doubling.

[0005] Patent CN214193561U discloses a functional fiber special cylinder metal clothing, in which the carding tooth of the clothing is a conical shape with a needle tip streamline arc, and the outer surface of the carding tooth is divided into a first working surface, a circular arc surface, and a second working surface from top to bottom, and is centrally symmetric. The clothing of the application can enhance the fiber carding and transfer ability, reduce fiber damage, and protect the main length of the fiber.

[0006] From the above patents, it can be seen that although the carding clothing of the prior art improves the carding effect and reduces fiber damage by changing the structure of the clothing, it cannot solve the problems of fiber bundle, hard block, impurities, high short fiber rate, and fiber fatigue damage of mixed waste fiber raw material, and there is a large difference in the performance of different fibers and different fiber transfer abilities. SUMMARY

[0007] The application aims to solve the problems of fiber bundle, hard block, impurities, high short fiber rate, and fiber fatigue damage of mixed waste fiber raw material in the prior art, and to provide a progressive multi-stage carding clothing to improve the carding effect of mixed waste of multiple fibers.

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

[0009] A progressive multi-stage carding cloth comprises a base and a tooth part arranged above the base;

[0010] The tooth part comprises main carding teeth, each main carding tooth is provided with an auxiliary carding tooth on the front face of the main carding tooth, and each main carding tooth is provided with a finishing tooth on the back face of the main carding tooth.

[0011] The front face of each auxiliary carding tooth is transitionally connected with the back face of the finishing tooth on one main carding tooth on the front side of the main carding tooth where the auxiliary carding tooth is located, and the back face of each auxiliary carding tooth is transitionally connected with the front face of the main carding tooth where the auxiliary carding tooth is located.

[0012] The front face of each finishing tooth is transitionally connected with the back face of the main carding tooth where the finishing tooth is located, and the back face of each finishing tooth is transitionally connected with the front face of the auxiliary carding tooth on one main carding tooth on the rear side of the main carding tooth where the finishing tooth is located.

[0013] The front face of each finishing tooth, the back face of each finishing tooth, the front face of each main carding tooth, the back face of each main carding tooth, the front face of each auxiliary carding tooth and the back face of each auxiliary carding tooth are all arc faces.

[0014] The front angle (the included angle between the front face and the horizontal line of the lower surface of the base) of each finishing tooth is δ3, the front angle of each auxiliary carding tooth is δ4, and the front angle of each main carding tooth is δ5, δ3, δ4 and δ5 decrease to form a progressive multi-stage carding, and δ3 is 75°-105°.

[0015] The distance between the tip C of each main carding tooth and the lower surface of the base and the distance between the tip A of each finishing tooth and the lower surface of the base are both h1, and the distance between the tip B of each auxiliary carding tooth and the lower surface of the base is h2, h2 is less than h1.

[0016] The tip B of each auxiliary carding tooth is located on the front side of the tip C of the main carding tooth where the auxiliary carding tooth is located, and the distance between the tip B and the tip C is L1.

[0017] The present application can solve the problems of the mixed-spun leftover material fiber bundle, hard block, high short fiber rate, and fiber fatigue damage, and can also solve the problems of large difference in fiber performance and different fiber transfer capacity in the prior art, because:

[0018] The finishing tooth of the present application is attached to the back part of the main carding tooth, and is designed mainly for the characteristics of the leftover fiber, such as serious entanglement, many hard blocks of fiber bundle, fiber fatigue and high short fiber, and its function is to loosen the cotton bundle neps, enhance the directional carding, and increase the ability of impurity removal and short fiber transfer. The present application improves the needle tooth density by adding auxiliary carding teeth, increases the carding points, and solves the problems of many neps and impurities in the leftover fiber and incomplete carding.

[0019] The arrangement tooth adopts a large tooth rake angle of 75-105°, at this time the fiber gripping and holding effect of the tooth tip of the arrangement tooth is weak, and under the action of the centrifugal force of the cylinder, the hard block and the fiber bundle with high content are more easily thrown to the flat card clothing due to small tangential resistance, thereby reducing the carding load of the cylinder; the design angle can directly decompose and pre-card the cotton neps and the fiber bundle which are easy to decompose; the entangled fiber which is not easy to decompose can be preliminarily opened and oriented by the tooth tip of the arrangement tooth, thereby creating conditions for the meticulous carding of the carding tooth.

[0020] The rake angle of each arrangement tooth, the rake angle of each auxiliary carding tooth and the rake angle of each main carding tooth decrease, and the rake angle of the arrangement tooth is the largest. As described above, after the fiber raw material is loosened, the impurities are removed, and the preliminary directional carding is performed, the number of fiber raw material neps is reduced, and the order of arrangement is improved. At this time, reducing the rake angle of the carding tooth will not cause obvious damage to the fiber, and at the same time, it is beneficial to improve the fiber gripping and holding and carding effect of the needle tooth, and the fiber can be more fully carded. The rake angle of each arrangement tooth, the rake angle of each auxiliary carding tooth and the rake angle of each main carding tooth decrease, so that the carding effect of the carding tooth on the fiber gradually increases with the increase of the order of fiber arrangement, thereby realizing the effect of flexible progressive carding, and solving the problem of excessive fatigue damage of the waste fiber due to repeated impact, thereby reducing the generation of short fibers.

[0021] The distance between the tooth tip C of each main carding tooth and the lower surface of the base and the distance between the tooth tip A of each arrangement tooth and the lower surface of the base are the same, so that the arrangement tooth and the main carding tooth can obtain the same flat carding gauge, and the hard block, the cotton neps, the short fibers and the impurities in the waste fiber layer are more easily held by the flat in the tight gauge state, thereby realizing the efficient transfer of the impurities. At the same time, the equal height design can promote the arrangement tooth to participate in the opening, the removal of impurities, the pre-carding and the pre-carding process of the fiber layer, thereby reducing the carding strength of the main carding tooth and the auxiliary carding tooth, and preventing the further damage of the already fatigued waste fiber.

[0022] The distance between the tooth tip B of each auxiliary carding tooth and the lower surface of the base is less than the distance between the tooth tip C of each main carding tooth and the lower surface of the base, so as to meet the differentiated carding requirements of the waste raw material due to the large difference in fiber or fiber bundle form and performance. For example, the small cotton bundle in the waste raw material is mostly grabbed and carded by the main carding tooth with higher tooth height, and the large cotton bundle is mostly grabbed and carded by the auxiliary carding tooth with lower tooth height. At the same time, the auxiliary carding tooth with lower tooth height supports the fiber carding of the main carding tooth, which is beneficial to the transfer of the fiber to the flat or the doffer, improves the problem of large difference in transfer ability of different fibers in the mixed waste, and improves the carding quality.

[0023] The tooth tip B of each auxiliary carding tooth is located in front of the tooth tip C of the main carding tooth where the auxiliary carding tooth is located, and the distance between the two is L1, that is, the tooth top of the auxiliary carding tooth protrudes a certain distance L1 relative to the tooth top of the main carding tooth to form a supporting surface, which effectively supports the fibers in the arc surface of the main carding tooth and is beneficial to the transfer of the fibers to the flat or the doffer.

[0024] As a preferred technical solution:

[0025] The progressive multi-stage carding clothing described above, δ4 is 55°-70°, and δ5 is 50°-65°.

[0026] The progressive multi-stage carding clothing described above, h1 is 1.8-2.0 mm, and h2 is 0.1-0.12 mm smaller than h1.

[0027] The progressive multi-stage carding clothing described above, L1 is 0.1-0.12 mm.

[0028] The progressive multi-stage carding clothing described above, the width b1 of the base is 0.5-0.6 mm; the distance p between the tooth tips A of two adjacent finishing teeth in the direction parallel to the lower surface of the base is 1.8-2.0 mm; in view of the characteristics that the waste mixed fiber bundle, hard blocks, dead knots and sundries are more and cause greater damage to the clothing, the thickness of the base of the needle tooth needs to be appropriately thickened, but this will lead to a decrease in the density of the carding tooth, in order to ensure the density of the carding tooth and the high carding degree of the fiber, the present application controls the longitudinal tooth pitch of the needle tooth (that is, the distance p between the tooth tips A of two adjacent finishing teeth in the direction parallel to the lower surface of the base) while adding auxiliary carding teeth to meet the carding requirements of the waste fibers.

[0029] The progressive multi-stage carding clothing described above, the tooth tip angle β3 (that is, the included angle between the front face and the back face of the tooth) of each finishing tooth is 70°-95°, and the finishing tooth adopts a large tooth tip angle of 70-95° to cope with the damage of the waste fiber bundle, dead knots, sundries and foreign matters to the needle tooth, increase the strength of the tooth tip, and improve the rolling resistance of the needle tooth; the tooth tip angle β4 of each auxiliary carding tooth is 50°-55°, and the auxiliary carding tooth adopts a large tooth tip angle of 50°-55°, which is easy to hold the fiber floating to the needle tip, enhances the fiber transfer, and improves the rolling resistance of the auxiliary carding tooth.

[0030] The progressive multi-stage carding clothing has the following beneficial effects: the carding teeth, the auxiliary carding teeth and the main carding teeth are arranged on the clothing teeth, the transfer, opening and directional arrangement of the bundle fibers / hard block impurities in the waste are solved, the carding effect is gradually increased, the different property fibers in the mixed waste are fully carded and flexibly and progressively carded, and the sliver quality of the mixed waste is effectively improved.

[0031] The progressive multi-stage carding clothing is suitable for the cylinder clothing, the flat clothing, the doffer clothing and the licker-in clothing of various carding machines.

[0032] Beneficial effects:

[0033] The progressive multi-stage carding clothing of the application gradually increases the carding effect on the basis of solving the transfer, opening and directional arrangement of the bundle fibers / hard block impurities in the waste, realizes the full carding and flexible and progressive carding of the different property fibers in the mixed waste, and effectively improves the sliver quality of the mixed waste. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a comparison schematic view of the progressive multi-stage carding clothing of the application and the conventional carding clothing (front view); Fig. a is a structural schematic view of the conventional carding clothing, and Fig. b is a structural schematic view of the progressive multi-stage carding clothing of the application;

[0035] Figure 2 It is a structural schematic view of the progressive multi-stage carding clothing (front view) of the application;

[0036] Figure 3 It is a structural size schematic view of the progressive multi-stage carding clothing (front view) of the application;

[0037] Figure 4 It is a structural size schematic view of the progressive multi-stage carding clothing (side view) of the application;

[0038] Figure 5 It is a schematic view of the angles of the clothing teeth of the progressive multi-stage carding clothing of the application;

[0039] Wherein, 1-base, 2-tooth part, 3-finishing tooth, 30-tooth front face of finishing tooth, 31-tooth tip A, 32-tooth back face of finishing tooth, 4-secondary carding tooth, 40-tooth front face of secondary carding tooth, 41-tooth tip B, 5-primary carding tooth, 50-tooth front face of primary carding tooth, 51-tooth tip C, 52-tooth back face of primary carding tooth. DETAILED DESCRIPTION

[0040] The application will be further described below in connection with specific embodiments. It should be understood that these embodiments are only used to illustrate the application and not used to limit the scope of the application. Furthermore, it should be understood that those skilled in the art can make various modifications or changes to the application after reading the content taught by the application, and these equivalent forms also fall within the scope defined by the claims of the application.

[0041] The following are the test methods for the performance in the examples:

[0042] CV value of sliver: tested according to GB / T 3292.1-2008 “Textiles. Yarn evenness testing methods. Part 1: Capacitance method” standard.

[0043] Nep: 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 visually detect and count the number of neps.

[0044] Fuzz rate and average fiber length: tested according to GB / T 6098-2018 “Cotton fiber length test method roller analyzer method” standard.

[0045] A progressive multi-stage carding clothing, such as Figure 1 (b) shown, comprising a base 1 and a tooth part 2 arranged above the base 1;

[0046] As shown in Figure 4 , the width b1 of the base 1 is 0.5-0.6mm;

[0047] As shown in Figure 2 , the tooth part 2 comprises primary carding teeth 5, each primary carding tooth is provided with a secondary carding tooth 4 on the tooth front face 50 thereof, and each primary carding tooth is provided with a finishing tooth 3 on the tooth back face 52 thereof;

[0048] The tooth front face of each secondary carding tooth 4 is transitionally connected with the tooth back face 32 of the finishing tooth on the front side of the primary carding tooth 5 thereof, the tooth back face of each secondary carding tooth 4 is transitionally connected with the tooth front face 50 of the primary carding tooth thereof, the tooth front face 30 of each finishing tooth is transitionally connected with the tooth back face 52 of the primary carding tooth thereof, and the tooth back face 32 of each finishing tooth is transitionally connected with the tooth front face 40 of the secondary carding tooth on the rear side of the primary carding tooth thereof;

[0049] The tooth front face 30 of each finishing tooth, the tooth back face 32 of each finishing tooth, the tooth front face 50 of each main carding tooth, the tooth back face 52 of each main carding tooth, the tooth front face 40 of each auxiliary carding tooth, and the tooth back face of each auxiliary carding tooth are all arc faces.

[0050] As shown in Figures 3-5 The tooth rake angle δ3 of each finishing tooth 3 (the angle between the tooth front face 30 of the finishing tooth and the horizontal line of the lower surface of the base 1) is 75°-105°, the tooth tip angle β3 (i.e. the angle between the tooth front face 30 of the finishing tooth and the tooth back face 32 of the finishing tooth) is 70°-95°, and the tooth depth h3 is 0.10-0.18 mm.

[0051] The tooth rake angle δ4 of each auxiliary carding tooth 4 is 55°-70°, the tooth tip angle β4 is 50°-55°, and the tooth depth h6 is 0.25-0.35 mm.

[0052] The tooth rake angle δ5 of each main carding tooth 5 is 50°-65°, the tooth tip angle β5 is 45°, and the tooth depth h4 is 0.10-0.15 mm.

[0053] δ3, δ4, and δ5 decrease;

[0054] In the direction parallel to the lower surface of the base 1, the distance p between the tooth tips A31 of two adjacent finishing teeth 3 is 1.8-2.0 mm.

[0055] The distance between the tooth tip C51 of each main carding tooth 5 and the lower surface of the base 1 and the distance between the tooth tip A31 of each finishing tooth 3 and the lower surface of the base 1 are both h1, which is 1.8-2.0 mm, and the distance between the tooth tip B41 of each auxiliary carding tooth 4 and the lower surface of the base 1 is h2, which is 0.1-0.12 mm less than h1.

[0056] The tooth tip B41 of each auxiliary carding tooth 4 is located in front of the tooth tip C51 of the main carding tooth 5 where it is located, and the distance L1 between the two is 0.1-0.12 mm.

[0057] Embodiment 1

[0058] A progressive multi-stage carding clothing has the same structure as above, wherein h1 is 1.8 mm and h2 is 1.68 mm.

[0059] The width b1 of the base is 0.5 mm.

[0060] The tooth rake angle δ3 of each finishing tooth is 75°, the tooth tip angle β3 is 70°, and the tooth depth h3 is 0.10 mm.

[0061] The tooth rake angle δ4 of each auxiliary carding tooth is 55°, the tooth tip angle β4 is 50°, and the tooth depth h6 is 0.25 mm.

[0062] The rake angle δ5 of each main carding tooth is 50°, the tip angle β5 is 45°, and the tooth depth h4 is 0.10 mm;

[0063] The distance p between the tips A of the two adjacent finishing teeth is 1.8 mm;

[0064] L1 is 0.12 mm;

[0065] The progressive multi-stage carding clothing of the above structure 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 nanodiamond plating and nickel plating.

[0066] A carding method of fiber raw materials: using the above-mentioned progressive multi-stage carding clothing to card the waste fiber produced in the production process of the waste picker belly, the carding flat waste, and the waste fiber of the carding picker belly.

[0067] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw materials;

[0068] The process parameters of carding are: the sliver dry weight is 4.5 g / m, the cylinder speed of the machine process is 365 rpm, the taker-in speed is 760 rpm, the flat speed is 110 mm / min, and the sliver growth speed is 100 m / min;

[0069] The machine carding gauge process parameters (English silk): the five-point gauge of the cylinder-flat (from back to front) is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk, the gauge of the taker-in-cylinder is 7 silk, the gauge of the cylinder-doffer is 5 silk, the distance between the rear fixed flat and the cylinder (from bottom to top) is 22 silk, 20 silk, 18 silk, 16 silk, and 14 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.

[0070] Comparative Example 1

[0071] A carding clothing, which is basically the same as Example 1, except that: Figure 1 (a) as shown, there are no finishing teeth and auxiliary carding teeth on the carding clothing.

[0072] A carding method of fiber raw materials, which is basically the same as Example 1, except that the carding clothing of Comparative Example 1 is used.

[0073] The same fiber raw material is carded by using the carding clothing and carding method of Example 1 and Comparative Example 1 respectively under the same process parameters, and the resulting sliver quality is shown in Table 1. The sliver evenness CV value, neps, short fiber content, and fiber average length of Example 1 are all significantly better than those of Comparative Example 1.

[0074] Table 1

[0075]

[0076] Comparing Comparative Example 1 and Example 1, the data in the above table shows that, since the carding clothing of Comparative Example 1 does not have finishing teeth and auxiliary carding teeth, the waste fiber cannot be loosened and fully transferred in the fiber bundle block under a relatively gentle action in the carding process, thereby resulting in a decrease in the sliver quality.

[0077] Example 2

[0078] A progressive multi-stage carding clothing has the same structure as above, wherein h1 is 1.8 mm, h2 is 1.7 mm;

[0079] The width b1 of the base is 0.6 mm;

[0080] The rake angle δ3 of each finishing tooth is 75°, the tip angle β3 is 70°, and the tooth depth h3 is 0.18 mm;

[0081] The rake angle δ4 of each auxiliary carding tooth is 55°, the tip angle β4 is 50°, and the tooth depth h6 is 0.35 mm;

[0082] The rake angle δ5 of each main carding tooth is 50°, the tip angle β5 is 45°, and the tooth depth h4 is 0.15 mm;

[0083] The distance p between the tips A of two adjacent finishing teeth is 1.8 mm;

[0084] L1 is 0.1 mm;

[0085] The progressive multi-stage carding clothing with the above structure 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.

[0086] A carding method for fiber raw material: using the above-mentioned progressive multi-stage carding clothing to card the waste fiber produced in the production process of the Lycra / viscose blended yarn (Lycra manufacturer: Changzhou Saidele Fiber Co., Ltd., specification: 1.33 dtex x 38 mm, viscose manufacturer: Changzhou Saidele Fiber Co., Ltd., specification: 1.33 dtex x 38 mm).

[0087] The cotton carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw materials.

[0088] The process parameters of the carding are as follows: the lap dry weight is 4.5 g / m, the cylinder speed is 385 rpm, the flat speed is 760 rpm, the flat speed is 140 mm / min, and the lap growth speed is 100 m / min.

[0089] The carding process parameters (English silk) are as follows: the five-point spacing between the cylinder and the flat is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk from back to front, the spacing between the flat and the cylinder is 7 silk, the spacing between the cylinder and the doffer 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, 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.

[0090] Comparative Example 2

[0091] A carding clothing, which is basically the same as that of Example 2, except that the carding clothing does not have finishing teeth and auxiliary carding teeth.

[0092] A carding method of fiber raw materials, which is basically the same as that of Example 2, except that the carding clothing of Comparative Example 2 is used.

[0093] Under the same process parameters, the same fiber raw materials are carded using the carding clothing and carding method of Example 2 and Comparative Example 2, respectively, and the quality of the laps obtained is shown in Table 2. The CV value of the lap, the neps, the short fiber content, and the average fiber length of Example 2 are all significantly better than those of Comparative Example 2.

[0094] Table 2

[0095]

[0096]

[0097] Comparing Comparative Example 2 and Example 2, from the above data, since the carding clothing of Comparative Example 2 does not have finishing teeth and auxiliary carding teeth, the waste fiber bundles will not be loosened and the short fibers will not be completely transferred during the carding process, resulting in a decrease in the quality of the laps.

[0098] Example 3

[0099] A progressive multi-stage carding clothing, which has the same structure as above, wherein h1 is 1.8 mm and h2 is 1.7 mm.

[0100] The width b1 of the base is 0.5 mm.

[0101] The rake angle δ3 of each finishing tooth is 105°, the tip angle β3 is 95°, and the tooth depth h3 is 0.10 mm;

[0102] The rake angle δ4 of each auxiliary carding tooth is 70°, the tip angle β4 is 55°, and the tooth depth h6 is 0.25 mm;

[0103] The rake angle δ5 of each main carding tooth is 65°, the tip angle β5 is 50°, and the tooth depth h4 is 0.105 mm;

[0104] The distance p between the tips A of two adjacent finishing teeth is 2.0 mm;

[0105] L1 is 0.1 mm;

[0106] The progressive multi-stage carding clothing of the above structure 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.

[0107] A carding method of fiber raw materials: using the above-mentioned progressive multi-stage carding clothing to card the waste fiber produced in the production process of the blended yarn of seacell / lyocell (the manufacturer of seacell is Fujian Saidele Fiber Co., Ltd., and the specification is 1.0 dtex x 38 mm; the manufacturer of lyocell is Fujian Saidele Fiber Co., Ltd., and the specification is 1.33 dtex x 38 mm).

[0108] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw materials;

[0109] The process parameters of carding are: the lap dry weight is 4.5 g / m, the cylinder speed of the machine process is 385 rpm, the taker-in speed is 760 rpm, the flat speed is 140 mm / min, and the sliver speed is 100 m / min;

[0110] The machine carding gauge process parameters (English silk): the five-point gauge of the cylinder-flat (from back to front) is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk, the gauge of the taker-in-cylinder is 7 silk, the gauge of the cylinder-doffer 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, 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.

[0111] Comparative Example 3

[0112] A carding clothing, which is basically the same as Example 3, except that there are no finishing teeth and auxiliary carding teeth on the carding clothing.

[0113] A carding method of a fiber material, substantially the same as example 3, except that the carding clothing of comparative example 3 is used.

[0114] Under the same process parameters, the same fiber material is carded by using the carding clothing and carding method of example 3 and comparative example 3 respectively, and the quality of the sliver obtained is shown in table 3. The sliver CV value, neps, short fiber content and average fiber length of example 3 are all significantly better than those of comparative example 3.

[0115] Table 3

[0116]

[0117] Comparing comparative example 3 with example 3, it can be seen from the above data that the carding clothing of comparative example 3 does not have finishing teeth and auxiliary carding teeth, which causes greater damage to the fiber during carding, resulting in higher short fiber content, lower average fiber length and lower sliver quality after carding.

[0118] Example 4

[0119] A progressive multi-stage carding clothing, which has the same structure as above, wherein h1 is 1.8 mm, h2 is 1.7 mm;

[0120] The width b1 of the base is 0.5 mm;

[0121] The rake angle δ3 of each finishing tooth is 90°, the tip angle β3 is 75°, and the depth h3 is 0.10 mm;

[0122] The rake angle δ4 of each auxiliary carding tooth is 70°, the tip angle β4 is 55°, and the depth h6 is 0.25 mm;

[0123] The rake angle δ5 of each main carding tooth is 60°, the tip angle β5 is 45°, and the depth h4 is 0.10 mm;

[0124] The distance p between the tips A of two adjacent finishing teeth is 1.8 mm;

[0125] L1 is 0.1 mm;

[0126] The progressive multi-stage carding clothing with the above structure is made of Belgian alloy steel wire (manufacturer: Bekaert Group, brand: SUPER alloy steel wire), and the surface is coated with a composite coating of super-hard nanodiamond plating and nickel plating.

[0127] A carding method of fiber raw material: using the above-mentioned progressive multi-stage carding clothing to card the waste fiber produced in the production process of the carding machine, the waste fiber including the waste fiber on the top of the carding machine, the waste fiber on the top of the carding flat, and the waste fiber on the top of the carding machine.

[0128] In this example, the carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw material.

[0129] The process parameters of carding are: the lap dry weight is 4.5 g / m, the cylinder speed of the carding machine is 395 rpm, the speed of the licker-in is 760 rpm, the speed of the flat is 130 mm / min, and the speed of the growing lap is 100 m / min.

[0130] The carding gauge process parameters (English silk) of the carding machine are: the five-point gauge of the cylinder-flat (from back to front) is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk, the gauge of the licker-in-cylinder is 7 silk, the gauge of the cylinder-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, 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.

[0131] Comparative Example 4

[0132] A carding clothing, which is basically the same as Example 4, except that the carding clothing does not have finishing teeth and auxiliary carding teeth.

[0133] A carding method of fiber raw material, which is basically the same as Example 4, except that the carding clothing of Comparative Example 4 is used.

[0134] Under the same process parameters, the same fiber raw material is carded by using the carding clothing and carding method of Example 4 and Comparative Example 4, respectively, and the quality of the lap obtained is shown in Table 4. The CV value of the lap, the neps, the short fiber content, and the average fiber length of Example 4 are all significantly better than those of Comparative Example 4.

[0135] Table 4

[0136]

[0137] After comparing Comparative Example 4 and Example 4, it can be seen from the above data that since the carding clothing of Comparative Example 4 does not have finishing teeth and auxiliary carding teeth, the waste fiber cannot be loosened and fully transferred in a relatively gentle action during the carding process, which will increase the CV value of the lap and reduce the quality of the lap.

[0138] Example 5

[0139] A progressive multi-stage carding cloth, the structure is the same as above, wherein: h1 is 2.0 mm, h2 is 1.9 mm;

[0140] The width b1 of the base is 0.5 mm;

[0141] The rake angle δ3 of each finishing tooth is 75°, the tip angle β3 is 70°, and the tooth depth h3 is 0.15 mm;

[0142] The rake angle δ4 of each auxiliary carding tooth is 55°, the tip angle β4 is 50°, and the tooth depth h6 is 0.3 mm;

[0143] The rake angle δ5 of each main carding tooth is 50°, the tip angle β5 is 45°, and the tooth depth h4 is 0.125 mm;

[0144] The distance p between the tips A of two adjacent finishing teeth is 1.8 mm;

[0145] L1 is 0.12 mm;

[0146] The progressive multi-stage carding cloth with the above structure 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.

[0147] A carding method of fiber raw materials: using the above-mentioned progressive multi-stage carding cloth to card the waste fiber produced in the production process of polyester / modele blended yarn (the manufacturer of polyester is Jiangyin Yirun Chemical Fiber Textile Co., Ltd., the specification is 1.33 dtex x 38 mm, the manufacturer of modele is Tangshan Sanyou Fiber Co., Ltd., the specification is 1.33 dtex x 38 mm).

[0148] In this example, a carding machine (Hengda Qingdao Spinning Machine JWF1211) is used to card the above-mentioned fiber raw materials;

[0149] The process parameters of carding are: the dry weight of the sliver is 4.5 g / m, the cylinder speed of the machine process speed is 375 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 100 m / min;

[0150] The process parameters of the carding machine (English silk) are: the five-point spacing between the cylinder and the flat is 9 silk, 8 silk, 8 silk, 8 silk, and 8 silk from back to front, the spacing between the licker-in and the cylinder is 7 silk, the spacing between the cylinder and the doffer 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, 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.

[0151] Comparative Example 5

[0152] A carding cloth substantially the same as Example 5, except that the carding cloth is free of finishing teeth and auxiliary carding teeth.

[0153] A carding method of a fiber material substantially the same as Example 5, except that the carding cloth of Comparative Example 5 is used.

[0154] Under the same process parameters, the same fiber material is carded by using the carding cloth and carding method of Example 5 and Comparative Example 5 respectively, and the quality of the sliver obtained is compared as shown in Table 5. The sliver CV value, neps, short fiber content, and fiber average length of Example 5 are obviously better than those of Comparative Example 5.

[0155] Table 5

[0156]

[0157] After comparing Comparative Example 5 and Example 5, it can be seen from the above data that, since the carding cloth of Comparative Example 5 is free of finishing teeth and auxiliary carding teeth, the waste fiber material cannot be loosened and transferred sufficiently under a relatively gentle action in the carding process, thereby resulting in a decrease in the quality of the sliver.

[0158] Comparative Example 6

[0159] A progressive multi-stage carding cloth substantially the same as Example 5, except that δ3, δ4, and δ5 of the carding cloth are all 55°.

[0160] A carding method of a fiber material substantially the same as Example 5, except that the carding cloth of Comparative Example 6 is used.

[0161] Under the same process parameters, the same fiber material is carded by using the carding cloth and carding method of Example 5 and Comparative Example 6 respectively, and the quality of the sliver obtained is compared as shown in Table 6. The sliver CV value, neps, short fiber content, and fiber average length of Example 5 are obviously better than those of Comparative Example 6.

[0162] Table 6

[0163]

[0164]

[0165] After comparing Comparative Example 6 and Example 5, it can be seen from the above data that, since δ3, δ4, and δ5 of the carding cloth of Comparative Example 6 are equal, the waste fiber is subjected to strong carding without effective pre-loosening and removal of the bundle fiber, which causes great damage to the fiber, thereby resulting in an increase in the short fiber content, a decrease in the fiber length, and a decrease in the quality of the sliver.

[0166] Comparative Example 7

[0167] A progressive multi-stage carding cloth, substantially the same as Example 5, except that h2 on the carding cloth is 2.0 mm.

[0168] A carding method of fiber material, substantially the same as Example 5, except that the carding cloth of Comparative Example 7 is used.

[0169] Under the same process parameters, the same fiber material is carded by using the carding cloth and carding method of Example 5 and Comparative Example 7 respectively, and the quality of the sliver obtained is shown in Table 7. The sliver evenness CV value, neps, short fiber content, and fiber average length of Example 5 are all significantly better than those of Comparative Example 7.

[0170] Table 7

[0171]

[0172] Comparing Comparative Example 7 with Example 5, from the data in the above table, since h1 and h2 on the carding cloth of Comparative Example 7 are equal, and the auxiliary carding teeth and the main carding teeth are carded with the flat at the same gauge, it is easy to cause the problem of fiber damage due to excessive carding degree, and it is not conducive to the differentiated grabbing and carding of the two fibers in the mixed waste, resulting in a decrease in the quality of the sliver.

Claims

1. A progressive multi-stage card clothing, characterized by, The base and the tooth part arranged above the base; The tooth part comprises main carding teeth, each main carding tooth is provided with an auxiliary carding tooth on the front face of the tooth, and each main carding tooth is provided with a finishing tooth on the back face of the tooth; The front face of each auxiliary carding tooth is transitionally connected with the back face of the finishing tooth on one main carding tooth on the front side of the main carding tooth where the auxiliary carding tooth is located, and the back face of each auxiliary carding tooth is transitionally connected with the front face of the main carding tooth where the auxiliary carding tooth is located; The front face of each finishing tooth is transitionally connected with the back face of the main carding tooth where the finishing tooth is located, and the back face of each finishing tooth is transitionally connected with the front face of the auxiliary carding tooth on one main carding tooth on the rear side of the main carding tooth where the finishing tooth is located; The front face of each finishing tooth, the back face of each finishing tooth, the front face of each main carding tooth, the back face of each main carding tooth, the front face of each auxiliary carding tooth, and the back face of each auxiliary carding tooth are all arc faces; The front rake angle of each finishing tooth is δ3, the front rake angle of each auxiliary carding tooth is δ4, and the front rake angle of each main carding tooth is δ5, δ3, δ4 and δ5 decrease, δ3 is 75°-105°, δ4 is 55°-70°, and δ5 is 50°-65°; The distance between the tip C of each main carding tooth and the lower surface of the base and the distance between the tip A of each finishing tooth and the lower surface of the base are both h1, and the distance between the tip B of each auxiliary carding tooth and the lower surface of the base is h2, h1 is 1.8-2.0 mm, and h2 is 0.1-0.12 mm smaller than h1; The tip B of each auxiliary carding tooth is located on the front side of the tip C of the main carding tooth where the auxiliary carding tooth is located, and the distance between the two is L1.

2. A progressive multi-stage card clothing according to claim 1, characterized in that, L1 is 0.1-0.12 mm.

3. A progressive multi-stage card clothing according to claim 1, wherein, The width b1 of the base is 0.5-0.6 mm, and the distance p between the tips A of two adjacent finishing teeth in the direction parallel to the lower surface of the base is 1.8-2.0 mm.

4. A progressive multi-stage card clothing according to claim 1, wherein The tip angle β3 of each finishing tooth is 70°-95°, and the tip angle β4 of each auxiliary carding tooth is 50°-55°.

5. A progressive multi-stage card clothing according to claim 1, wherein The tooth depth h3 of each finishing tooth is 0.10-0.18 mm, the tooth depth h4 of each main carding tooth is 0.10-0.15 mm, and the tooth depth h6 of each auxiliary carding tooth is 0.25-0.35 mm.

6. A progressive multi-stage card clothing according to claim 1, wherein, The device is suitable for various types of carding machine cylinder clothing, flat clothing, doffer clothing and stinger clothing.

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