Card clothing for fixing cover plate

Abstract

The utility model discloses card clothing for fixing a cover plate. The card clothing comprises a base part, a plurality of comb tooth parts are arranged on the base part, and each comb tooth part comprises a tooth tip, a tooth top surface, a tooth working surface, a tooth back surface and a tooth bottom surface; the tooth top surface comprises two sections of end surfaces with different inclination angles; impurities in spinning raw materials can be effectively intercepted at the pre-carding position of the rear fixed cover plate, so that neps are effectively reduced, and the yarn forming quality is improved; meanwhile, the load of the movable cover plate can be reduced, and the service life of the movable cover plate is prolonged; in the carding area of the front fixed cover plate, the fibers can be effectively straightened, the straightness of the fibers is increased, and the yarn forming quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carding machine covers, in particular to a card clothing for fixing the covers. Background Art

[0002] The fixed flats are a crucial carding component in the carding machine and can be divided into the licker-in lower carding plate, the rear fixed flats, and the front fixed flats. The rear fixed flats pre-comb the fibers fed to the cylinder teeth, reducing the number of tufts entering the main carding zone, alleviating the carding load on the cylinder and flats and extending the service life of the movable flats and cylinder clothing. The front fixed flats, located behind the cylinder and movable flat carding zones, maintain single-fiber separation, enhancing fine carding, reducing back-bends, improving fiber straightness, and improving web clarity. They also reduce neps and both coarse and fine knots in fine yarn.

[0003] The existing fixed flats generally have a small tooth density of only about 160 teeth / square inch to 400 teeth / square inch; the front angle α of the traditional rear fixed flat is small, only 5°-10°; the tooth depth of the traditional rear fixed flat is deep, between 1.0-1.2mm; the tooth body height is between 2.8-4.0mm; with this tooth parameter configuration, the rear fixed flat cannot intercept impurities in the cotton fibers well, and the cotton knot reduction effect is not very obvious. At the same time, the combing load of the cylinder and the flat cannot be effectively reduced, which has little effect on extending the life of the movable flat and the cylinder.

[0004] The existing fixed cover plate has a front fixed cover plate tooth density of about 400 teeth / square inch to 860 teeth / square inch, a front angle α of 5° to 25°, a tooth depth of 0.6-0.9mm, and a total tooth height of 2.8-4.0mm. This tooth parameter configuration makes the front fixed cover plate not very effective in finely combing the fibers, improving the fiber straightness, and improving the clarity of the cotton web. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a card clothing for fixing a flat plate.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a card clothing for fixing a flat plate, comprising:

[0007] base;

[0008] The base is provided with a plurality of comb teeth.

[0009] The comb tooth portion includes a tooth tip, a tooth top surface, a tooth working surface, a tooth back surface and a tooth bottom surface;

[0010] The tooth top surface is composed of two end surfaces with different inclination angles.

[0011] As a further description of the above technical solution: the tooth top surface includes a first end surface, and a second end surface connected to the first end surface, and the second end surface is connected to the tooth back surface.

[0012] As a further description of the above technical solution: the tooth working surface is a curved surface, which is connected to the first end surface to form the tooth tip.

[0013] As a further description of the above technical solution: rounded corners are provided between the second end face and the tooth back face, and between the tooth back face and the tooth bottom face.

[0014] As a further description of the above technical solution: the angle α between the tooth working surface and the vertical direction is 30°-50°.

[0015] As a further description of the above technical solution: the angle γ between the back surface of the tooth and the horizontal direction is: 36°-48°.

[0016] As a further description of the above technical solution: the length of the first end face and the second end face is 0.2-0.35 mm.

[0017] As a further description of the above technical solution: the angle θ1 between the first end surface and the horizontal direction is 3°-5°; the angle θ2 between the second end surface and the horizontal direction is 5°-10°.

[0018] As a further description of the above technical solution: the total height h1 of the base and the comb teeth is 2.0-2.6 mm; the height h2 of the base is 1.4-1.9 mm, the thickness b1 is 0.4-0.8 mm, the depth h3 of the comb teeth is 0.3-0.7 mm, and the thickness b2 of the tooth tip is 0.05-0.08 mm.

[0019] As a further description of the above technical solution: the tooth pitch P between two adjacent comb tooth portions is 1.2-3.5 mm.

[0020] The above technical solution has the following advantages or beneficial effects:

[0021] 1. The pre-combing position of the rear fixed flat can effectively intercept impurities in the spinning raw materials, thereby effectively reducing cotton neps and improving the yarn quality; at the same time, it can reduce the load of the movable flat and extend the service life of the movable flat; in the combing area of ​​the front fixed flat, it can effectively straighten the fibers, increase the straightness of the fibers, and improve the yarn quality.

[0022] 2. The tooth working surface adopts a large-angle curved surface and a deeper tooth bottom surface, which can release the fiber well and improve the use effect of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of the card clothing proposed in the present invention;

[0024] Figure 2 A side sectional view of the card clothing proposed in the present invention;

[0025] Figure 3 for Figure 1 A partial enlarged view of the middle comb teeth.

[0026] Legend:

[0027] 1. Base; 2. Comb tooth; 3. Tooth tip; 4. Tooth top surface; 41. First end surface; 42. Second end surface; 5. Tooth working surface; 6. Tooth back surface; 7. Tooth bottom surface. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 3 The utility model provides an embodiment: a needle cloth for fixing a cover plate, comprising: a base 1; a plurality of comb tooth portions 2 are provided on the base 1, the comb tooth portions 2 include tooth tips 3, tooth top surfaces 4, tooth working surfaces 5, tooth back surfaces 6 and tooth bottom surfaces 7; the tooth top surfaces 4 are two end surfaces with different inclination angles.

[0030] In this embodiment, the designed comb teeth 2 effectively intercept impurities in the rear fixed flat plate area, reducing the number of cotton bundles entering the main combing area, alleviating the combing load on the cylinder and flat plates, and extending the service life of the movable flat plates and cylinder. In the front fixed flat plate area, the combing is enhanced to finely separate the fibers, reducing fiber hooking, improving fiber straightness, improving web clarity, reducing neps, and enhancing yarn quality. The tooth working surface 5 utilizes a large-angle curved surface and a deep tooth bottom surface 7, effectively releasing fibers and improving the performance of the flat plates.

[0031] The tooth top surface 4 includes a first end surface 41 and a second end surface 42 connected to the first end surface 41. The second end surface 42 is connected to the tooth back surface 6. Specifically, fillets are provided between the second end surface 42 and the tooth back surface 6, and between the tooth back surface 6 and the tooth bottom surface 7.

[0032] In this embodiment, a convex surface is provided at the connection between the second end face 42 and the tooth back face 6, a concave surface is provided at the connection between the tooth back face 6 and the tooth bottom face 7, and a concave surface is provided at the connection between the tooth working surface 5 and the tooth bottom face 7, so that the fibers will not be damaged during the combing process.

[0033] The tooth working surface 5 is a curved surface, connected to the first end surface 41 to form a tooth tip 3 .

[0034] In this embodiment, one side of the curved surface of the tooth working surface 5 is connected to the tooth bottom surface 7, and the other side extends toward the first end surface 41 at the curved surface to form a plane, which forms an angle with the first end surface 41 to form a tooth tip 3. The angle α between the tooth working surface 5 and the vertical direction is 30°-50°. Optionally, the angle α is 40°, so that the fibers transported into the cover plate are combed.

[0035] The included angle γ between the tooth back surface 6 and the horizontal direction is 36°-48°, optionally 42°, to support the tooth working surface 5 and prevent the comb tooth portion 2 from being deformed or broken during the combing process.

[0036] The lengths of the first end surface 41 and the second end surface 42 are 0.2-0.35 mm. Optionally, the length L1 of the first end surface 41 is 0.25 mm, and the length L2 of the second end surface 42 is 0.3 mm.

[0037] An included angle θ1 between the first end surface 41 and the horizontal direction is 3°-5°, optionally, the included angle θ1 is 4°; an included angle θ2 between the second end surface 42 and the horizontal direction is 5°-10°, optionally, the included angle θ2 is 7°.

[0038] The total height h1 of the base 1 and the comb teeth 2 is 2.0-2.6 mm; the height h2 of the base 1 is 1.4-1.9 mm, the thickness b1 is 0.4-0.8 mm, the depth h3 of the comb teeth 2 is 0.3-0.7 mm, and the thickness b2 of the tooth tip 3 is 0.05-0.08 mm; the tooth pitch P between two adjacent comb teeth 2 is 1.2-3.5 mm.

[0039] In this embodiment, the design structure of the present application reduces the total height, reduces the tooth depth, increases the angle of the tooth working surface 5, and increases the number of teeth per square inch compared to the existing fixed flat card clothing.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A card clothing for fixing a flat plate, characterized in that: include: base (1); The base (1) is provided with a plurality of comb teeth (2). The comb tooth portion (2) comprises a tooth tip (3), a tooth top surface (4), a tooth working surface (5), a tooth back surface (6) and a tooth bottom surface (7); The tooth top surface (4) is composed of two end surfaces with different inclination angles.

2. The card clothing according to claim 1, characterized in that: The tooth top surface (4) comprises a first end surface (41) and a second end surface (42) connected to the first end surface (41), and the second end surface (42) is connected to the tooth back surface (6).

3. The card clothing according to claim 2, characterized in that: The tooth working surface (5) is a curved surface, connected to the first end surface (41) to form the tooth tip (3).

4. The card clothing according to claim 2, characterized in that: Rounded corners are provided between the second end surface (42) and the tooth back surface (6), and between the tooth back surface (6) and the tooth bottom surface (7).

5. The card clothing according to claim 1, characterized in that: The included angle α between the tooth working surface (5) and the vertical direction is 30°-50°.

6. The card clothing according to claim 1, characterized in that: The angle γ between the tooth back surface (6) and the horizontal direction is 36°-48°.

7. The card clothing according to claim 2, characterized in that: The lengths of the first end surface (41) and the second end surface (42) are 0.2-0.35 mm.

8. The card clothing according to claim 2, characterized in that: The included angle θ1 between the first end surface (41) and the horizontal direction is 3°-5°; the included angle θ2 between the second end surface (42) and the horizontal direction is 5°-10°.

9. The card clothing according to claim 1, characterized in that: The total height h1 of the base (1) and the comb tooth portion (2) is 2.0-2.6 mm; the height h2 of the base (1) is 1.4-1.9 mm, the thickness b1 is 0.4-0.8 mm, the depth h3 of the comb tooth portion (2) is 0.3-0.7 mm, and the thickness b2 of the tooth tip (3) is 0.05-0.08 mm.

10. The card clothing according to claim 1, characterized in that: The tooth pitch P between two adjacent comb tooth portions (2) is 1.2-3.5 mm.

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