High-strength carbon fiber guide bar for warp knitting machine

Abstract

The utility model discloses a high-strength carbon fiber guide bar for a warp knitting machine, and relates to the technical field of carbon fiber guide bars. The carbon fiber section bar comprises a carbon fiber section bar, the carbon fiber section bar is used as a main body of the guide bar, the bottom surface of the carbon fiber section bar is of a plane structure, and a slope is arranged above the carbon fiber section bar. The magnesium-aluminum alloy and the carbon fiber are combined, so that the advantages of the magnesium-aluminum alloy and the carbon fiber are taken into consideration, and the respective defects are made up at the same time. The magnesium-aluminum alloy provides excellent mechanical strength and stable screw connection performance, and the thermal stability of the carbon fiber ensures the dimensional accuracy of the guide bar in a high-temperature or temperature change environment. Through segmented design and a reasonable connection mode, the problem of size change caused by thermal expansion of magnesium-aluminum alloy is solved, the reliability and durability of the whole structure are enhanced, the requirements of a high-density stitch length machine table for precision and strength can be met, and meanwhile the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of carbon fiber comb bars, specifically, it relates to a high-strength carbon fiber comb bar for warp knitting machines. Background Technology

[0002] Currently, the guide bars for warp knitting machines on the market are mainly made of magnesium-aluminum alloy or carbon fiber. Both materials have their advantages and disadvantages, but their individual use has significant limitations in practical applications. Structurally, these guide bars are usually made by processing the two materials into similar profiles, with lengths generally exceeding 3 meters to meet the needs of industrial equipment. Magnesium-aluminum alloy is widely used due to its high strength and lightweight characteristics, but its significant drawback is poor dimensional thermal stability. It is prone to dimensional changes under conditions of large temperature variations in the operating environment, making it difficult to meet the precision requirements of high-density needle pitch machines. Carbon fiber, on the other hand, has excellent dimensional thermal stability and is not easily deformed by temperature changes, making it more suitable for high-density needle pitch machines. However, carbon fiber is not without its flaws. While it has high tensile strength in the fiber direction, it is relatively fragile in non-fiber directions. Especially when connected to other structural components (such as hangers) with screws, the concentrated stress points or vibrations during high-speed operation often lead to loose screws or cracking of the carbon fiber material. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-strength carbon fiber comb for warp knitting machines, thus solving the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0005] A high-strength carbon fiber comb for a warp knitting machine includes: a carbon fiber profile, which serves as the main body of the comb, with a planar bottom surface and a ramp on the top.

[0006] The magnesium-aluminum alloy profile has a U-shaped cross-section structure and surrounds one end of the flat portion of the carbon fiber profile. The magnesium-aluminum alloy profile is provided with a snap-fit ​​structure for fitting with the carbon fiber profile, so that the carbon fiber profile and the magnesium-aluminum alloy profile form an integral support frame.

[0007] Optionally, the bottom wall of the U-shaped section of the magnesium-aluminum alloy profile is a planar rectangular structure that is in full contact with the bottom surface of the carbon fiber profile, and the top is a slope that matches the ramp.

[0008] Optionally, the snap-fit ​​structure of the magnesium-aluminum alloy profile extends from the sidewall, and the snap-fit ​​includes: an inner snap hook disposed at the bottom edge of the slope, wherein the inner snap hook is bent inward, and a first slot adapted to the inner snap hook is left above the slope.

[0009] Optionally, the buckle also includes a side lock buckle located at the top of the flat portion, and a second slot is provided below the carbon fiber profile, with the side lock buckle engaging with the second slot.

[0010] Optionally, the magnesium-aluminum alloy profile is designed in segments, each segment being 200-400 mm in length, with a thermal expansion gap of 0.5-1 mm between every two adjacent magnesium-aluminum alloy profiles.

[0011] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0012] By combining magnesium-aluminum alloy with carbon fiber, the advantages of both materials are combined while their respective shortcomings are compensated for. Magnesium-aluminum alloy provides excellent mechanical strength and stable screw connection performance, while the thermal stability of carbon fiber ensures the dimensional accuracy of the comb bars under high temperature or temperature variation environments. Through segmented design and a reasonable connection method, the dimensional changes caused by thermal expansion of magnesium-aluminum alloy are solved, while also enhancing the reliability and durability of the overall structure. This meets the precision and strength requirements of high-density needle spacing machines and extends the service life of the equipment.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure above the carbon fiber comb.

[0016] Figure 2 This is a schematic diagram of the structure beneath the carbon fiber comb.

[0017] Figure 3 This is a schematic diagram of a cross-section of a carbon fiber comb.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Carbon fiber profile; 2. Sloping section; 3. Magnesium-aluminum alloy profile; 4. Inner hook; 5. First slot; 6. Side lock; 7. Second slot; 8. Thermal expansion gap.

[0020] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Please see Figure 1-3 As shown, this embodiment provides a high-strength carbon fiber comb for a warp knitting machine, including a carbon fiber profile 1. The carbon fiber profile 1 is used as the main body of the comb. The bottom surface of the carbon fiber profile 1 is a planar structure, and a slope 2 is provided on the top of the carbon fiber profile 1.

[0023] The magnesium-aluminum alloy profile 3 has a U-shaped cross-section structure and surrounds one end of the flat portion of the carbon fiber profile 1. The magnesium-aluminum alloy profile 3 is provided with a snap-fit ​​structure for fitting with the carbon fiber profile 1, so that the carbon fiber profile 1 and the magnesium-aluminum alloy profile 3 form an integral support frame.

[0024] By combining magnesium-aluminum alloy with carbon fiber, the advantages of both materials are combined while their respective shortcomings are compensated for. Magnesium-aluminum alloy provides excellent mechanical strength and stable screw connection performance, while the thermal stability of carbon fiber ensures the dimensional accuracy of the comb bars under high temperature or temperature variation environments. Through segmented design and a reasonable connection method, the dimensional changes caused by thermal expansion of magnesium-aluminum alloy are solved, while also enhancing the reliability and durability of the overall structure. This meets the precision and strength requirements of high-density needle spacing machines and extends the service life of the equipment.

[0025] Figure 1 The U-shaped structure shown is made of magnesium-aluminum alloy and is designed to semi-enclose the carbon fiber profile 1, which is securely fixed by two precision-designed clips. The magnesium-aluminum alloy profile 3 adopts a modular segmented design, with each segment approximately 400mm in length, and each segment is independently locked to a hanger. The main purpose of the segmented design is to accommodate the dimensional changes of the magnesium-aluminum alloy due to thermal expansion during operation. Therefore, reasonable expansion gaps are reserved between adjacent segments, similar to the expansion joint design in bridge structures, to effectively absorb thermal stress. Each segment of the magnesium-aluminum alloy profile 3 is firmly bonded to the carbon fiber profile 1 with high-strength adhesive, while the carbon fiber profile 1, as a continuous structure, runs through the entire comb, ultimately forming a whole comb structure that combines high-strength mechanical properties and thermal stability, meeting the stringent requirements of complex operating conditions.

[0026] In this embodiment, the bottom wall of the U-shaped cross-section of the magnesium-aluminum alloy profile 3 is a planar rectangular structure, which is in full contact with the bottom surface of the carbon fiber profile 1, and the top is a slope that matches the slope 2. The full contact between the bottom wall and the bottom surface of the carbon fiber profile 1 increases the strength and stability of the overall connection, while the slope design at the top better adapts to the slope 2 structure, helping to avoid damage caused by stress concentration.

[0027] In this embodiment, the snap-fit ​​structure of the magnesium-aluminum alloy profile 3 extends from the side wall. The snap-fit ​​includes an inner hook 4 located at the bottom edge of the slope 2, wherein the inner hook 4 is bent inward, and a first groove 5 adapted to the inner hook is provided above the slope 2. Through the cooperation between the inner hook 4 and the first groove 5, a firm mechanical connection is achieved, preventing loosening caused by high-speed operation of the equipment, and further improving the impact resistance of the structure.

[0028] In this embodiment, the buckle also includes a side lock buckle 6 disposed on the top of the flat portion, and a second slot 7 is provided below the carbon fiber profile 1, with the side lock buckle 6 engaging with the second slot 7. The engaging design of the side lock buckle 6 and the second slot 7 increases the number of connection points, forming a more stable fixing effect, while avoiding the loosening or falling-off problems that may exist with a single connection method.

[0029] In this embodiment, the magnesium-aluminum alloy profile 3 is segmented, with each segment being 200-400 mm in length. A thermal expansion gap 8 of 0.5-1 mm is left between every two adjacent magnesium-aluminum alloy profiles 3. The segmented design avoids the dimensional instability problem caused by overall thermal expansion, and the gap design further absorbs the stress caused by thermal expansion, ensuring the normal use of the equipment in temperature-changing environments.

[0030] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A high-strength carbon fiber comb for warp knitting machines, characterized in that, include: Carbon fiber profile (1) is used as the main body of comb. The bottom surface of carbon fiber profile (1) is a flat structure, and a slope (2) is provided on the top of carbon fiber profile (1). Magnesium-aluminum alloy profile (3) has a U-shaped cross-section structure and surrounds one end of the flat part of the carbon fiber profile (1). The magnesium-aluminum alloy profile (3) is provided with a snap-fit ​​structure for fitting with the carbon fiber profile (1) so that the carbon fiber profile (1) and the magnesium-aluminum alloy profile (3) form an integral support frame.

2. A high-strength carbon fiber comb for a warp knitting machine according to claim 1, characterized in that, The bottom wall of the U-shaped section of the magnesium-aluminum alloy profile (3) is a planar rectangular structure that contacts the bottom surface of the carbon fiber profile (1), and the top is an inclined surface that matches the slope (2).

3. A high-strength carbon fiber comb for a warp knitting machine according to claim 1, characterized in that, The snap-fit ​​structure of the magnesium-aluminum alloy profile (3) extends from the side wall. The snap-fit ​​includes an inner hook (4) located at the bottom edge of the slope (2), wherein the inner hook (4) is bent inward, and a first slot (5) adapted to the inner hook is left above the slope (2).

4. A high-strength carbon fiber comb for a warp knitting machine according to claim 1, characterized in that, The buckle also includes a side lock (6) set at the top of the flat part, and a second slot (7) is provided below the carbon fiber profile (1), and the side lock (6) is fitted into the second slot (7).

5. A high-strength carbon fiber comb for a warp knitting machine according to claim 1, characterized in that, The magnesium-aluminum alloy profile (3) is designed in segments, each segment is 200-400 mm long, and there is a thermal expansion gap (8) of 0.5-1 mm between every two adjacent magnesium-aluminum alloy profiles (3).

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