A licker-in needle clothing

Abstract

The invention discloses a licker-in needle cloth, comprising: a base; a plurality of needle teeth are installed above the base; the base drives the needle teeth to perform a combing operation on a to-be-combed object; any side surface of the base is a plane or a conical arc surface, and the side surface opposite to the plane or the conical arc surface has the same shape as the plane or the conical arc surface; the needle teeth are spike-shaped, and the needle teeth are integrally connected with the base; the device can greatly improve the puncture and opening of the cotton layer by the licker-in needle cloth by designing the original needle teeth to be conical, and compared with the original licker-in needle cloth, since the needle teeth are in the shape of round spikes, the damage to the fiber in the combing and opening process of the needle teeth is greatly improved, and the generation of yarn defects is reduced.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, in particular to a licker-in needle clothing. Background Art

[0002] With the market promotion and application of wide width and high speed carding machines and combing machines, various new fibers and new spinning forms have put forward higher requirements for combing. Heavy weight, thick cotton mesh, high speed, strong opening and less fiber damage are the new requirements for combing.

[0003] The patent with publication number CN 107956005 B provides a licker-in carding needle cloth for cotton silage degummed ramie fibers, wherein the needle teeth are configured with arc tooth tips and shallow teeth with low density, which is conducive to the effective pre-combing of cotton silage degummed ramie fibers, does not cause the needle tooth gap to be filled, and the load between the teeth is heavy, which avoids the accumulation of fibers at the bottom of the needle teeth and the crushing of the needle teeth. It is also suitable for the situation when the licker-in roll runs at high speed. The device is mainly used to avoid the loss of needle teeth during the pre-combing process, but the device does not further improve the yarn defect rate of the fiber yarn after combing in actual production.

[0004] The grooved needle clothing design is mainly used in China. The literature: On the development and selection of self-locking licker-in roller racks (Wu Qi; On the development and selection of self-locking licker-in roller racks [A]; Proceedings of the 2005 National Modern Spinning Technology Seminar [C]; 2005) puts forward the advantages of self-locking licker-in roller racks. The self-locking licker-in roller racks can change the lateral spacing arbitrarily, and can reduce the licker-in roller speed without reducing the pre-combing, thereby reducing the generation of yarn defects such as cotton knots; but after reducing the licker-in roller speed, the production rate will decrease. Summary of the invention

[0005] The purpose of the present invention is to further optimize the technology on the basis of the existing technology, and to propose a licker-in needle clothing.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: a licker-in needle clothing, comprising:

[0007] base;

[0008] A plurality of needle teeth are installed above the base;

[0009] The base drives the needle teeth to comb the material to be combed;

[0010] Any side surface of the base is a plane, and the side surface opposite to the plane has the same shape as the plane;

[0011] The needle teeth are in the shape of nails, and are integrally connected with the base.

[0012] A licker-in needle clothing, further comprising:

[0013] base;

[0014] A plurality of needle teeth are installed above the base;

[0015] The base drives the needle teeth to comb the material to be combed;

[0016] The base is designed in a flat belt shape;

[0017] Any side surface of the base is a conical arc surface, and the side surface opposite to the arc surface has the same shape as the arc surface;

[0018] The needle teeth are in the shape of nails, and are integrally connected with the base.

[0019] As a further description of the above technical solution: the needle teeth are arranged on the base at equal intervals.

[0020] As a further description of the above technical solution: the needle teeth are inclined to the base, including a first working edge and a second working edge, and the angle between the first working edge and the base is 0°-30°;

[0021] The angle between the second working edge and the base is 30°-70°.

[0022] As a further description of the above technical solution: the needle tooth is conical, and the needle tooth includes a first working surface and a second working surface, and the vertical inclination angle between the first working surface and the second working surface ranges from 5° to 50°.

[0023] As a further description of the above technical solution: the top of the needle teeth is a spike roller tip, which is provided with a certain curvature, and the thickness of the spike roller tip is 0.08mm-0.3mm; the tooth depth height of the needle teeth is 2.0mm-6.0mm.

[0024] As a further description of the above technical solution: the total thickness of the side of the card clothing is 2.0mm-5.0mm; the bottom thickness of the side of the card clothing is 1.0mm-3.0mm.

[0025] As a further description of the above technical solution: the total height of the card clothing is 4.0 mm-8.0 mm; the height of the base is 1.0 mm-4.0 mm.

[0026] As a further description of the above technical solution: the distance between the needle teeth is 3.0mm-10.0mm.

[0027] As a further description of the above technical solution: the material of the card clothing is metal, and preferably, the metal material can be a chrome-plated alloy.

[0028] The above technical solution has the following advantages or beneficial effects:

[0029] 1. By designing the original needle teeth into a conical shape, the puncture and opening of the cotton layer by the licker-in roller can be greatly improved. Compared with the original licker-in roller needle clothing, the needle teeth are in the shape of round nails, which greatly improves the damage to the fiber during the combing and opening process of the needle teeth and reduces the generation of yarn defects.

[0030] 2. Both sides of the needle teeth in the card clothing have a certain inclination angle and form a certain angle with the base, so that the card clothing can be removed more quickly after the fiber is combed for fiber transfer, reducing the yarn defect rate during the yarn forming process and making the carding machine work more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the card clothing structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of another embodiment of the card clothing in the present invention;

[0033] Figure 3 It is a front view of the card clothing in the present invention;

[0034] Figure 4 It is a structural schematic diagram of the card clothing in the prior art;

[0035] Figure 5 It is another structural schematic diagram of the card clothing in the prior art.

[0036] Legend:

[0037] 1. Base; 2. Needle teeth. DETAILED DESCRIPTION

[0038] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0039] Reference Figure 1 An embodiment of the present invention is as follows: a licker-in needle cloth, comprising: a base 1; a plurality of needle teeth 2 are installed above the base 1; the base 1 drives the needle teeth 2 to comb the material to be combed; any side surface of the base 1 is a plane, and the side surface opposite to the plane has the same shape as the plane; the needle teeth 2 are nail-shaped, and the needle teeth 2 are integrally connected to the base 1.

[0040] In this embodiment, the fibers are combed by providing needle teeth 2 on the top of the base 1. The needle teeth 2 are designed to be spike-shaped.

[0041] Reference Figure 2 The present invention also provides another embodiment of a licker-in needle cloth, comprising a base 1; a plurality of needle teeth 2 are installed above the base 1; the base 1 drives the needle teeth 2 to comb the material to be combed; the base 1 is designed as a flat belt; any side surface of the base 1 is a conical arc surface, and the side surface opposite to the arc surface has the same shape as the arc surface; the needle teeth 2 are nail-shaped, and the needle teeth 2 are integrally connected to the base 1.

[0042] In this embodiment, any side surface of the base 1 is designed to be a conical structure with the same shape as the opposite surface, and a concave conical groove is formed at the base 1. When the bottom thickness of the base 1 remains unchanged, the total thickness of the base 1 is increased, and the pre-contact area with the fiber during operation is increased, so that the fiber can be better combed.

[0043] The needle teeth 2 are arranged at equal intervals on the base 1. The equal interval arrangement can better comb the fibers.

[0044] Reference Figure 3 The needle teeth 2 and the base 1 are designed to be inclined, including a first working edge a and a second working edge a1. The angle between the first working edge a and the base 1 is 0°-30°; the angle between the second working edge a1 and the base 1 is 30°-70°.

[0045] In this embodiment, the angle of the first working edge a is smaller than the angle of the second working edge a1. According to the different angles, the angle formed by the first working edge a and the second working edge a1 can reflect the thickness of the needle tooth 2. The first working edge a is the working edge, and the second working edge a1 is the back edge. The first working edge a is in direct contact with the fiber to be combed for combing, and the second working edge a1 can slide the combed and separated fibers to the next needle tooth 2 for combing.

[0046] The needle tooth 2 is conical, and the needle tooth 2 includes a first working surface a2 and a second working surface a3. The vertical inclination angle of the first working surface a2 and the second working surface a3 is in the range of 5°-50°. The angles of the first working surface a2 and the second working surface a3 can be the same or different. When the angles are the same, the needle tooth 2 is conical, and the forces on the left and right sides are the same, so the needle tooth is not easily damaged. When the angles of the first working surface a2 and the second working surface a3 are designed to be different, the needle tooth 2 is an inclined cone, which can better penetrate into the fibers to be combed.

[0047] In this embodiment, the angles of the first working surface a2 and the second working surface a3 are designed to be the same; by designing the original needle teeth to be conical, the puncture and opening of the cotton layer by the licker-in roller can be greatly improved, and compared with the original licker-in roller needle clothing, the needle teeth are in the shape of round nails, which greatly improves the damage to the fiber during the needle teeth combing and opening process, and reduces the generation of yarn defects.

[0048] The top of the needle tooth 2 is a spike roller tip h5, which is provided with a certain curvature, and the thickness of the spike roller tip h5 is 0.08mm-0.3mm; the tooth depth height h2 of the needle tooth 2 is 2.0mm-6.0mm; the total thickness h3 of the side of the card clothing is 2.0mm-5.0mm; the thickness h4 of the bottom of the side of the card clothing is 1.0mm-3.0mm; the total height h of the card clothing is 4.0mm-8.0mm; the height h1 of the base 1 is 1.0mm-4.0mm; the distance p between the needle teeth 2 is 3.0mm-10.0mm; the material of the card clothing is metal, and preferably, the metal material can be a chrome-plated alloy.

[0049] Through the combination of the above parameters, different size changes of base thickness, total height, working, pitch angle, etc., it is possible to design nail-shaped continuous covered licker-in needle clothing suitable for combing cotton, linen, chemical fiber, artificial fiber, etc., and for different spinning raw materials and different equipment models.

[0050] Reference Figure 4-Figure 5 The connection position of the second working edge a1 of the conventional card clothing and the base 1 is close to the first working edge a of the next needle tooth 2, which can reduce the stress on the card clothing and reduce the loss to a certain extent. However, in the yarn forming process, the yarn defect rate is high.

[0051] A more specific embodiment is now provided. Table 1 is the experimental data related to the present invention. After replacing the designed spike-shaped licker-in needle clothing, the machine speed is gradually increased from 100 m / min to 120 m / min, 150 m / min, 180 m / min, and 200 m / min, and the A1 grade yarn defects are improved. At present, the maximum speed is increased to 200 m / min. At 200 m / min, the yarn yield and yarn defect grade are similar to those of the conventional needle clothing at 100 m / min, which proves that the spike-shaped licker-in needle clothing of the present application is conducive to improving indicators and achieving the goal of improving quality and increasing production.

[0052]

[0053] Table 1

[0054] In another specific embodiment, the conventional licker-in data is set at 110 m / min, and the licker-in speed of the present invention is set at 140 m / min, wherein the fibers to be carded are all TEL24SCP bobbins for control test, wherein the detailed data comparison is shown in Table 2:

[0055]

[0056]

[0057] Table 2

[0058] A yarn defect whose cross section is 100% thicker than that of the original normal yarn cross section and whose length is less than 8 cm is called a short thick section; a yarn defect whose cross section is 45% thicker than that of the original normal yarn cross section and whose length is more than 8 cm is called a long thick section; a yarn defect whose cross section is 30%-75% thinner than that of the original normal yarn cross section and whose length is more than 8 cm is called a long thin section. It can be seen from the above data that the yarn defect rate of the test data of the present invention is lower than that of the existing conventional carding machine, and the working speed is higher.

[0059] Table 3 is a comparison of the defect rates of the back ends of each level, specifically, the NSLT defect of 100,000 meters of TEL24SCP package yarn. The yarn defect rate of the present invention is lower than that of the existing carding machine, and the carding speed is faster, as shown in Table 3:

[0060]

[0061]

[0062] Table 3

[0063] The comparison data of yarn defects in each classification is shown in Table 4. Taking the TEL24SCP package yarn classification cut defect as an example, the data of yarn defects generated in the A1-B2 classification are as follows:

[0064]

[0065] Table 4

[0066] From Tables 2 to 4, it can be seen that the faster the carding machine works, the higher the yarn defect rate. Overall, for the test nail-shaped licker-in needle clothing, the yarn defects of the original, post-spinning cut defects, and grade A are all reduced, and the carding speed is faster than that of the existing carding machine.

[0067] 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A licker-in needle clothing, characterized in that: include: base (1); A plurality of needle teeth (2) are mounted above the base (1); The base (1) drives the needle teeth (2) to perform a combing operation on the object to be combed; Any side surface of the base (1) is a plane, and the side surface opposite to the plane has the same shape as the plane; Or, any side surface of the base (1) is a conical arc surface, and the side surface opposite to the arc surface has the same shape as the arc surface; The needle teeth (2) are conical, and the needle teeth (2) are integrally connected to the base (1); The base (1) is designed in the shape of a flat belt; The needle teeth (2) are arranged at equal intervals on the base (1); The needle teeth (2) and the base (1) are designed to be inclined, including a first working edge and a second working edge, and the angle between the first working edge and the base (1) is 0°-30°; The angle between the second working edge and the base (1) is 30°-70°; The needle tooth (2) comprises a first working surface and a second working surface, and the vertical inclination angle between the first working surface and the second working surface ranges from 5° to 50°; The top of the needle tooth (2) is a spike roller tip, which is provided with a certain curvature, and the thickness of the spike roller tip is 0.08 mm-0.3 mm; the tooth depth height of the needle tooth (2) is 2.0 mm-6.0 mm; The total thickness of the side of the card clothing is 2.0mm-5.0mm; the thickness of the bottom of the side of the card clothing is 1.0mm-3.0mm; The total height of the card clothing is 4.0 mm to 8.0 mm; the height of the base (1) is 1.0 mm to 4.0 mm; The distance between the needle teeth (2) is 3.0 mm to 10.0 mm.

2. The licker-in wire according to claim 1, characterized in that: The material of the card clothing is metal, and the metal material is chrome-plated alloy.

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