High-strength wear-resistant warp knitting machine groove needle

Abstract

The utility model discloses a high-strength wear-resistant groove needle of a warp knitting machine, relates to the technical field of groove needles of warp knitting machines, and solves the problems that the groove needle is easy to wear or break in a high-speed knitting process and the stability and the service life of the warp knitting machine are influenced because the wear resistance and the strength of the groove needle cannot be well balanced in the prior art. Comprising a high-strength and high-toughness needle body part and a high-hardness needle tip part, the high-hardness needle tip part is fixedly installed at one end of the high-strength and high-toughness needle body part, and the surface of the high-strength and high-toughness needle body part is coated with a self-lubricating coating. The pin body is made of the high-strength alloy steel material, so that the groove pin has excellent toughness and impact resistance, the overall structural strength of the groove pin is remarkably enhanced, the pin tip part is made of the hard alloy material, and the service life of the groove pin is prolonged. Due to the high hardness and excellent wear resistance, friction and abrasion generated in the knitting process of the yarn are effectively resisted, and the wear resistance of the groove needle is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of warp knitting machine groove needles, in particular to a high-strength and wear-resistant warp knitting machine groove needle. Background Art

[0002] The warp knitting machine groove needle is a key component of the warp knitting machine and is used to guide the yarn for knitting. After long-term use, the existing warp knitting machine groove needles often affect the knitting quality and efficiency due to wear. Therefore, improving the wear resistance and strength of the groove needles has become an urgent need in the industry.

[0003] At present, in order to improve the wear resistance of the groove needles, common methods include manufacturing the groove needles with high-hardness materials or coating the surface of the groove needles with wear-resistant coatings. However, while these methods improve the wear resistance, they often sacrifice the toughness of the groove needles, making the groove needles prone to wear or breakage during high-speed knitting, which affects the stability and service life of the warp knitting machine.

[0004] Therefore, a high-strength and wear-resistant warp knitting machine groove needle is now proposed. Summary of the Utility Model

[0005] In order to improve the problem that the prior art fails to well balance the wear resistance and strength of the groove needles, making the groove needles prone to wear or breakage during high-speed knitting, which affects the stability and service life of the warp knitting machine, the utility model provides a high-strength and wear-resistant warp knitting machine groove needle.

[0006] The utility model provides a high-strength and wear-resistant warp knitting machine groove needle, adopting the following technical scheme:

[0007] A high-strength and wear-resistant warp knitting machine groove needle includes a high-strength and high-toughness needle body part and a high-hardness needle tip part. The high-hardness needle tip part is fixedly installed at one end of the high-strength and high-toughness needle body part. A self-lubricating coating is coated on the surface of the high-strength and high-toughness needle body part. A transition layer is arranged on the surface at the connection of the high-strength and high-toughness needle body part and the high-hardness needle tip part.

[0008] By adopting the above technical scheme, the high-strength and high-toughness needle body part ensures that the needle body of the groove needle has excellent toughness, thereby enhancing the overall structural strength of the groove needle. The high-hardness needle tip part has the advantages of high hardness and excellent wear resistance, and can effectively resist the friction and wear generated by the yarn on the high-hardness needle tip part during knitting, so that the groove needle is not prone to wear or breakage during high-speed knitting, and the stability and service life of the warp knitting machine are improved.

[0009] Optionally, the high-strength and high-toughness needle body part adopts a high-strength alloy steel needle body.

[0010] By adopting the above technical solution, the high-strength alloy steel ensures that the high-strength and high-toughness needle body part has excellent toughness and impact resistance, thereby enhancing the overall structural strength of the grooved needle.

[0011] Optionally, the high-hardness needle tip part adopts a cemented carbide needle tip.

[0012] By adopting the above technical solution, cemented carbide has the advantages of high hardness and excellent wear resistance, etc., and can effectively resist the friction and wear generated by the yarn on the high-hardness needle tip part during the knitting process.

[0013] Optionally, the self-lubricating coating is a nano-ceramic coating.

[0014] By adopting the above technical solution, the nano-ceramic coating not only has excellent wear resistance and corrosion resistance, can protect the high-strength and high-toughness needle body part from damage in a harsh working environment, but also has a self-lubricating function. This characteristic helps to reduce the friction coefficient between the yarn and the surface of the grooved needle during high-speed knitting, thereby improving the knitting efficiency and quality.

[0015] Optionally, the transition layer is a gradient material layer, and its hardness gradually increases from the side of the high-strength and high-toughness needle body part to the side of the high-hardness needle tip part.

[0016] By adopting the above technical solution, it helps to alleviate the stress concentration problem that may be caused by the material hardness difference between the high-strength and high-toughness needle body part and the high-hardness needle tip part, thereby improving the reliability of the grooved needle in a complex knitting environment and enhancing the structural strength and service life of the grooved needle.

[0017] Optionally, the high-strength and high-toughness needle body part and the high-hardness needle tip part are firmly combined through a precision casting process.

[0018] By adopting the above technical solution, the stability and durability of the grooved needle during use are ensured, thereby extending the service life of the grooved needle.

[0019] Optionally, the high-hardness needle tip part is designed in a streamline shape.

[0020] By adopting the above technical solution, not only the frictional resistance of the contact surface between the yarn and the grooved needle is reduced, but also the knitting efficiency is improved.

[0021] Optionally, a number of reinforcing wires are fixedly installed inside the high-strength and high-toughness needle body part at equal intervals along the length direction. The reinforcing wires are titanium alloy wires, and a number of X-shaped connectors are fixedly installed between adjacent two of the reinforcing wires. The X-shaped connectors and the reinforcing wires are of an integral structure.

[0022] By adopting the above technical solution, several high-strength and high-toughness reinforcing wires are arranged inside the high-strength and high-toughness needle body part, which helps to improve the overall strength and toughness of the high-strength and high-toughness needle body part. Moreover, when the high-strength and high-toughness needle body part accidentally breaks, under the connection action of the reinforcing wires, it is not easy for the broken part to fly.

[0023] Optionally, positioning parts are integrally connected to both sides of the end of the high-strength and high-toughness needle body part far from the high-hardness needle tip part, and the two positioning parts and the high-strength and high-toughness needle body part form a Z-shaped structure.

[0024] By adopting the above technical solution, through the design of the two positioning parts, compared with the design of a single positioning part in the prior art, it is beneficial to reduce the force at the positioning part, thereby improving the stability during the installation of the groove needle. Moreover, the two positioning parts and the high-strength and high-toughness needle body part form a Z-shaped structure, improving the positioning effect during the installation of the groove needle, and helping to improve the problem of poor positioning effect and inconvenient installation between a single positioning part and the groove needle connecting seat in the prior art.

[0025] Optionally, a transition arc is arranged at the connection between the positioning part and the high-strength and high-toughness needle body part.

[0026] By adopting the above technical solution, the design of the transition arc can make the transition of the positioning part natural and the force uniform.

[0027] In summary, the utility model has the following beneficial effects:

[0028] 1. The utility model makes the needle body by using high-strength alloy steel material, ensuring that the groove needle has excellent toughness and impact resistance, thus significantly enhancing the overall structural strength of the groove needle. The needle tip part is made of cemented carbide material, which effectively resists the friction and wear generated by the yarn during the knitting process with its high hardness and excellent wear resistance, significantly improving the wear resistance of the groove needle. Moreover, the streamline design of the needle tip reduces the frictional resistance of the contact surface between the yarn and the groove needle, thereby improving the knitting efficiency;

[0029] 2. In the utility model, the transition layer is made of gradient material, and its design of gradually increasing hardness effectively alleviates the stress concentration problem that may be caused by the hardness difference between the two materials, further enhancing the structural strength and use reliability of the groove needle in a complex knitting environment;

[0030] 3. The coating of the nano-ceramic coating in the utility model not only provides excellent wear resistance and corrosion resistance protection for the needle body, but also reduces the friction coefficient between the yarn and the surface of the groove needle due to its self-lubricating function, thereby further improving the knitting efficiency and quality. Description of the Drawings

[0031] Figure 1This is a schematic three-dimensional structure diagram of the present utility model.

[0032] Figure 2 This is a schematic cross-sectional structure diagram of the high-strength and high-toughness needle body part of the present utility model.

[0033] Figure 3 This is the present utility model Figure 2 An enlarged structure diagram of part A.

[0034] Explanation of reference numerals:

[0035] 1. High-strength and high-toughness needle body part; 2. High-hardness needle tip part; 3. Self-lubricating coating; 4. Transition layer; 5. Reinforcing wire; 6. X-shaped connecting piece; 7. Positioning part; 8. Transition arc. Specific implementation manners

[0036] The following further describes the present application in detail with reference to the attached Figures 1-3 drawings.

[0037] Please refer to Figures 1-2 , a high-strength and wear-resistant warp knitting machine sinker, including a high-strength and high-toughness needle body part 1 and a high-hardness needle tip part 2. The high-strength and high-toughness needle body part 1 adopts a high-strength alloy steel needle body. The high-strength alloy steel ensures that the high-strength and high-toughness needle body part 1 has excellent toughness and impact resistance, thereby enhancing the overall structural strength of the sinker. The high-hardness needle tip part 2 adopts a cemented carbide needle tip. Cemented carbide has the advantages of high hardness and excellent wear resistance, etc., and can effectively resist the friction and wear generated by the yarn on the high-hardness needle tip part 2 during the knitting process. At the same time, further, the cemented carbide material that the high-hardness needle tip part 2 can adopt can be replaced with other super-hard materials according to actual needs, such as cubic boron nitride or diamond, etc. These materials have higher hardness and wear resistance, and can further improve the durability of the needle tip. The high-hardness needle tip part 2 is of a streamline design. The design of this structure not only reduces the frictional resistance of the contact surface between the yarn and the sinker, but also improves the knitting efficiency. The high-hardness needle tip part 2 is fixedly installed at one end of the high-strength and high-toughness needle body part 1. The high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2 are firmly combined through a precision casting process, ensuring the stability and durability of the sinker during use, and thus extending the service life of the sinker.

[0038] Refer to Figure 1 and Figure 2, the surface of the high-strength and high-toughness needle body part 1 is coated with a self-lubricating coating 3, and the self-lubricating coating 3 is a nano-ceramic coating. The nano-ceramic coating not only has excellent wear resistance and corrosion resistance, and can protect the high-strength and high-toughness needle body part 1 from damage in harsh working environments, but also has a self-lubricating function. This characteristic helps to reduce the friction coefficient between the yarn and the surface of the groove needle during high-speed knitting, thereby improving the knitting efficiency and quality. Further, the self-lubricating coating 3 can also be replaced with other types of wear-resistant coatings according to specific circumstances, such as cermet coatings or polymer composite coatings, etc., to meet different knitting environments and process requirements. A transition layer 4 is provided on the surface of the connection between the high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2. The transition layer 4 is a gradient material layer, and its hardness gradually increases from the side of the high-strength and high-toughness needle body part 1 to the side of the high-hardness needle tip part 2. This design helps to relieve the stress concentration problem that may be caused by the material hardness difference between the high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2, thereby improving the reliability of the groove needle in complex knitting environments and enhancing the structural strength and service life of the groove needle.

[0039] Refer to Figure 2 and Figure 3 , a number of reinforcing wires 5 are fixedly installed inside the high-strength and high-toughness needle body part 1 at equal intervals along the length direction. The reinforcing wires 5 are titanium alloy wires, and the titanium alloy wires have the advantages of high strength and high toughness. A number of X-shaped connectors 6 are fixedly installed between two adjacent reinforcing wires 5. The X-shaped connectors 6 and the reinforcing wires 5 are of an integral structure, and the X-shaped connectors 6 strengthen the connection between two adjacent reinforcing wires 5. By arranging a number of high-strength and high-toughness reinforcing wires 5 inside the high-strength and high-toughness needle body part 1, it helps to improve the overall strength and toughness of the high-strength and high-toughness needle body part 1. Moreover, when the high-strength and high-toughness needle body part 1 accidentally breaks, under the connection action of the reinforcing wires 5, it is not easy for the broken part to fly out.

[0040] Refer to Figure 1 and Figure 2 , on both sides of one end of the high-strength and high-toughness needle body part 1 far from the high-hardness needle tip part 2, positioning parts 7 are integrally connected. The two positioning parts 7 and the high-strength and high-toughness needle body part 1 form a Z-shaped structure. Through the design of the two positioning parts 7, compared with the design of a single positioning part 7 in the prior art, it is beneficial to reduce the force at the positioning part 7, thereby improving the stability during the installation of the groove needle. Moreover, the two positioning parts 7 and the high-strength and high-toughness needle body part 1 form a Z-shaped structure, improving the positioning effect during the installation of the groove needle, and helping to improve the problem of poor positioning effect between a single positioning part 7 and the groove needle connecting seat and inconvenient installation in the prior art. A transition arc 8 is provided at the connection between the positioning part 7 and the high-strength and high-toughness needle body part 1. The design of the transition arc 8 can make the transition of the positioning part 7 natural and the force uniform.

[0041] The implementation principle of the present utility model is as follows:

[0042] The high-strength and high-toughness needle body part 1 is made of high-strength alloy steel needle body. The high-strength alloy steel ensures that the high-strength and high-toughness needle body part 1 has excellent toughness and impact resistance, thereby enhancing the overall structural strength of the groove needle. Moreover, the high-hardness needle tip part 2 is made of cemented carbide needle tip. Cemented carbide has the advantages of high hardness and excellent wear resistance, etc., and can effectively resist the friction and wear generated by the yarn on the high-hardness needle tip part 2 during the knitting process. At the same time, the high-hardness needle tip part 2 is designed in a streamline shape. The design of this structure not only reduces the frictional resistance of the contact surface between the yarn and the groove needle, but also improves the knitting efficiency. In addition, the high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2 are firmly combined through a precision casting process, ensuring the stability and durability of the groove needle during use, thereby extending the service life of the groove needle;

[0043] The surface of the high-strength and high-toughness needle body part 1 is coated with a self-lubricating coating 3. The self-lubricating coating 3 is a nano-ceramic coating. The nano-ceramic coating not only has excellent wear resistance and corrosion resistance, and can protect the high-strength and high-toughness needle body part 1 from damage in a harsh working environment, but also has a self-lubricating function. This characteristic helps to reduce the friction coefficient between the yarn and the surface of the groove needle during high-speed knitting, thereby improving the knitting efficiency and quality;

[0044] The surface of the connection part between the high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2 is provided with a transition layer 4. The transition layer 4 is a gradient material layer, and its hardness gradually increases from the side of the high-strength and high-toughness needle body part 1 to the side of the high-hardness needle tip part 2. This design helps to relieve the stress concentration problem that may be caused by the material hardness difference between the high-strength and high-toughness needle body part 1 and the high-hardness needle tip part 2, thereby improving the reliability of the groove needle in a complex knitting environment and enhancing the structural strength and service life of the groove needle;

[0045] By arranging a number of high-strength and high-toughness reinforcing wires 5 inside the high-strength and high-toughness needle body part 1, it helps to improve the overall strength and toughness of the high-strength and high-toughness needle body part 1. Moreover, when the high-strength and high-toughness needle body part 1 accidentally breaks, under the connection action of the reinforcing wires 5, it is not easy for the broken part to fly;

[0046] Through the design of two positioning parts 7, compared with the design of a single positioning part 7 in the prior art, it is beneficial to reduce the force at the positioning part 7, thereby improving the stability of the groove needle during installation. Moreover, the two positioning parts 7 and the high-strength and high-toughness needle body part 1 form a Z-shaped structure, improving the positioning effect during the installation of the groove needle, and helping to improve the problem of poor positioning effect between a single positioning part 7 and the groove needle connecting seat in the prior art and inconvenient installation.

[0047] The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A high-strength and wear-resistant warp knitting machine groove needle, comprising a high-strength and high-toughness needle body (1) and a high-hardness needle tip (2), characterized in that: The high-hardness needle tip portion (2) is fixedly mounted on one end of the high-strength and high-toughness needle body portion (1); the surface of the high-strength and high-toughness needle body portion (1) is coated with a self-lubricating coating (3); and the surface of the connection between the high-strength and high-toughness needle body portion (1) and the high-hardness needle tip portion (2) is provided with a transition layer (4).

2. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The high-strength and high-toughness needle body (1) is made of a high-strength alloy steel needle body.

3. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The high-hardness needle tip (2) is a hard alloy needle tip.

4. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The self-lubricating coating (3) is a nano-ceramic coating.

5. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The transition layer (4) is a gradient material layer, and its hardness gradually increases from the high-strength and high-toughness needle body portion (1) side to the high-hardness needle tip portion (2) side.

6. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The high-strength and high-toughness needle body part (1) and the high-hardness needle tip part (2) are firmly combined through a precision casting process.

7. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: The high-hardness needle tip (2) is of streamlined design.

8. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: A plurality of reinforcing wires (5) equidistantly arranged along the length direction are fixedly installed inside the high-strength and high-toughness needle body (1); the reinforcing wires (5) are titanium alloy wires, and a plurality of X-shaped connecting pieces (6) are fixedly installed between two adjacent reinforcing wires (5); the X-shaped connecting pieces (6) and the reinforcing wires (5) are an integral structure.

9. The high-strength wear-resistant warp knitting machine groove needle according to claim 1, characterized in that: Both sides of the high-strength and high-toughness needle body portion (1) away from one end of the high-hardness needle tip portion (2) are integrally connected with positioning portions (7), and the two positioning portions (7) and the high-strength and high-toughness needle body portion (1) form a Z-shaped structure.

10. The high-strength wear-resistant warp knitting machine groove needle according to claim 9, characterized in that: A transition arc (8) is provided at the connection between the positioning portion (7) and the high-strength and high-toughness needle body portion (1).

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