Adjustable yarn splitting device

Abstract

The utility model discloses an adjustable yarn splitting device which is arranged between a yarn unwinding frame and a yarn spreading roller and comprises an adjustable yarn splitting fork and a guide assembly, the adjustable yarn splitting fork comprises a plurality of rhombic assemblies, and the rhombic assemblies are arranged in the axis direction of the yarn spreading roller. The rhombic assembly can stretch out and draw back in the axis direction of the yarn spreading roller under the action of external force, and a sliding assembly is arranged at the lower end of the adjustable yarn splitting fork. The guide assembly is parallel to the axis direction of the yarn spreading roller, and the sliding assembly is in sliding fit with the guide assembly so as to guide movement of the sliding assembly in the axis direction of the yarn spreading roller. Thus, the rhombic assembly can stretch out and draw back in the axis direction of the yarn spreading roller under the action of external force, so that the length of the yarn splitting fork can be adjusted according to actual requirements, the yarn processing requirements of different widths or different specifications and materials are met, misoperation of operators is reduced, the carbon fiber tow off-line time is shortened, the production efficiency is improved, and the production cost is reduced. And the quality and the consistency of the yarns are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber prepreg manufacturing, in particular to an adjustable yarn splitting device. Background Art

[0002] Carbon fiber prepreg is a high-performance composite material raw material, mainly composed of continuous carbon fibers and a resin matrix.

[0003] In the large-scale production process of carbon fiber prepreg, in the face of diverse order demands, achieving rapid switching of product specifications has become an important challenge for improving production efficiency and flexibility. The traditional method of width adjustment relies on manually replacing the yarn splitting forks with different spacing widths to adapt to the production requirements of carbon fiber prepregs with different widths. However, this method not only requires temporarily interrupting the carbon fiber production line for offline operation, increasing the interruption points and potential error risks in the production process, but also significantly reduces the production efficiency due to frequent replacement of the yarn splitting forks, increasing the labor cost and time cost. In addition, the high dependence on manual operation may also lead to inaccurate width setting, affecting the quality and consistency of the final product. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an adjustable yarn splitting device.

[0005] An adjustable yarn splitting device provided by the utility model is arranged between a yarn unwinding frame and a yarn spreading roller, and is characterized by comprising:

[0006] An adjustable yarn splitting fork, which includes a plurality of diamond-shaped components. The plurality of diamond-shaped components are arranged along the axis direction of the yarn spreading roller. The diamond-shaped components can expand and contract along the axis direction of the yarn spreading roller under the action of an external force. A sliding component is arranged at the lower end of the adjustable yarn splitting fork;

[0007] A guiding component, which is arranged parallel to the axis direction of the yarn spreading roller. The sliding component is slidably matched with the guiding component to guide the movement of the sliding component along the axis direction of the yarn spreading roller.

[0008] In some embodiments of the utility model, the diamond-shaped component includes four connecting rods. The four connecting rods are sequentially hinged end to end through a connecting piece to form a diamond shape. Adjacent two diamond-shaped components share one connecting piece.

[0009] In some embodiments of the utility model, the guiding component includes a first slide rail and a second slide rail which are arranged axially symmetrically;

[0010] The sliding component is arranged between the first slide rail and the second slide rail.

[0011] In some embodiments of the present utility model, the first slide rail includes a first slide plate, a second slide plate, and a third slide plate. Among them, the first end of the second slide plate is perpendicularly connected to the first slide plate, and the second end of the second slide plate is perpendicularly connected to the third slide plate. A first chute for the sliding component to slide is formed among the first slide plate, the second slide plate, and the third slide plate.

[0012] In some embodiments of the present utility model, a first limiting block extending along the length direction of the third slide plate is provided on the side of the third slide plate close to the first slide plate.

[0013] In some embodiments of the present utility model, the second slide rail includes a fourth slide plate, a fifth slide plate, and a sixth slide plate. Among them, the first end of the fifth slide plate is perpendicularly connected to the fourth slide plate, and the second end of the fifth slide plate is perpendicularly connected to the sixth slide plate. A second chute for the sliding component to slide is formed among the fourth slide plate, the fifth slide plate, and the sixth slide plate, and the opening of the second chute is arranged opposite to the opening of the first chute.

[0014] In some embodiments of the present utility model, a second limiting block extending along the length direction of the sixth slide plate is provided on the side of the sixth slide plate close to the fourth slide plate.

[0015] In some embodiments of the present utility model, the sliding component includes a connecting block. A first pulley is provided on the side of the connecting block close to the first slide rail, and a second pulley is provided on the side of the connecting block close to the second slide rail. The upper surface of the connecting block is connected to the diamond-shaped component through a fixing rod.

[0016] In some embodiments of the present utility model, the first pulley is arranged in the first chute, and the first pulley is located between the first limiting block and the second slide plate;

[0017] The second pulley is arranged in the second chute, and the second pulley is located between the second limiting block and the fifth slide plate.

[0018] In some embodiments of the present utility model, a sliding component is connected to the lower end of each diamond-shaped component.

[0019] The adjustable yarn splitting device provided by the present utility model has at least the following advantages:

[0020] The adjustable yarn splitting device provided by the present utility model enables the diamond-shaped component to expand and contract along the axis direction of the yarn spreading roller under the action of an external force, so that the length of the adjustable yarn splitting fork can be adjusted according to actual requirements, and then the number of adjustable yarn splitting forks can be adjusted, thereby realizing the reduction or increase of the number of picks, so as to adapt to the yarn processing requirements of different widths or different specifications and materials, reduce the misoperation of operators and reduce the offline time of the carbon fiber tow, thereby improving production efficiency; the sliding fit between the sliding component and the guiding component further enhances the flexibility of the device. The sliding component can move smoothly along the guiding component to ensure the stability of the adjustable yarn splitting fork during adjustment, while being convenient for operation and adjustment, helping to reduce the entanglement and friction between yarns and improve the quality and consistency of the yarns. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 FIG. is a schematic structural diagram of the adjustable yarn splitting device provided by an exemplary embodiment of the present utility model disposed between the yarn unwinding frame and the yarn spreading roller;

[0023] Figure 2 FIG. is a schematic structural diagram of a plurality of diamond-shaped components connected provided by an exemplary embodiment of the present utility model;

[0024] Figure 3 FIG. is a schematic structural diagram of the sliding component connected to a part of the guiding component provided by an exemplary embodiment of the present utility model;

[0025] Figure 4 FIG. is a schematic structural diagram of the diamond-shaped component expanding and contracting along the axis direction of the yarn spreading roller under the action of an external force provided by an exemplary embodiment of the present utility model.

[0026] The reference signs in the drawings are as follows:

[0027] 1. Yarn unwinding frame; 2. Yarn spreading roller;

[0028] 3. Adjustable yarn splitting fork; 310. Diamond-shaped component; 301. Connecting rod; 302. Connecting piece;

[0029] 4. Guiding component; 410. First slide rail; 411. First slide plate; 412. Second slide plate; 413. Third slide plate; 414. First chute; 415. First limiting block;

[0030] 5. Sliding component; 501. Connecting block; 502. First pulley; 503. Second pulley. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0032] Referring to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present utility model. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments.

[0033] As a high-performance composite material raw material integrating high strength, light weight, and excellent mechanical properties, carbon fiber prepreg has been widely used in aerospace, automotive manufacturing, sports goods, and many other high-tech fields. Its core composition includes the tight combination of continuous carbon fiber tows and a specific resin matrix. This process not only requires a high degree of material uniformity and precise dimensional control but also needs to flexibly adjust the product specifications according to market demands, especially the key parameter of width.

[0034] In the large-scale production process of carbon fiber prepreg, in the face of diverse order demands, achieving rapid switching of product specifications has become an important challenge to improve production efficiency and flexibility. Traditional width adjustment methods rely on manually replacing the yarn splitting fork with different spacing widths to adapt to the production requirements of carbon fiber prepregs with different widths. However, this method not only requires temporarily interrupting the carbon fiber production line for offline operation, increasing the interruption points and potential error risks in the production process, but also significantly reduces production efficiency due to frequent replacement of the yarn splitting fork, increasing labor costs and time costs. In addition, the high dependence on manual operation may also lead to inaccurate width settings, affecting the quality and consistency of the final product. Therefore, developing a new type of yarn splitting device that can quickly adjust the width online, reduce human intervention, and improve the degree of production automation and efficiency has become an urgent need to solve the width adjustment problem in the current production of carbon fiber prepregs.

[0035] To solve the above technical problems, the present utility model provides an adjustable yarn dividing device. The adjustable yarn dividing device is provided with a plurality of diamond-shaped components. The plurality of diamond-shaped components can expand and contract along the axis direction of the yarn spreading roller under the action of an external force, so that the length of the yarn dividing fork can be adjusted according to actual needs, thereby adapting to the processing requirements of yarns with different widths, different specifications and materials, reducing the misoperation of operators and reducing the offline time of carbon fiber tows, thereby improving production efficiency; the sliding fit between the sliding component and the guiding component further enhances the flexibility of the device. The sliding component can smoothly move along the guiding component, ensuring that the adjustable yarn dividing fork remains stable during the adjustment process, while being convenient for operation and adjustment, helping to reduce the entanglement and friction between yarns, and improving the quality and consistency of the yarns.

[0036] An exemplary embodiment of the present utility model provides an adjustable yarn dividing device. Referring to Figure 1 , the adjustable yarn dividing device is arranged between the yarn unwinding frame 1 and the yarn spreading roller 2. Among them, the adjustable yarn dividing device includes an adjustable yarn dividing fork 3 and a guiding component 4. Among them, the guiding component 4 can be installed on the bracket of the yarn spreading roller 2. The yarn comes out from the yarn unwinding frame 1 and enters the yarn spreading roller 2 through the adjustable yarn dividing fork 3.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the adjustable yarn dividing fork 3 includes a plurality of diamond-shaped components 310. The plurality of diamond-shaped components 310 are arranged along the axis direction of the yarn spreading roller 2. The diamond-shaped components 310 can expand and contract along the axis direction of the yarn spreading roller 2 under the action of an external force. Exemplarily, referring to Figure 4 , when the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 towards the two end faces of the guiding component 4, at this time, the length direction of the diamond-shaped component 310 will become longer and the height direction will become shorter; when the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 towards the center point of the guiding component 4, at this time, the length direction of the diamond-shaped component 310 will become shorter and the height direction will become higher. A sliding component 5 is arranged at the lower end of the adjustable yarn dividing fork 3. Among them, the sliding component 5 can adopt a sliding structure such as a pulley or a slider; the guiding component 4 is arranged parallel to the axis direction of the yarn spreading roller 2, and the sliding component 5 is slidably matched with the guiding component 4 to guide the movement of the sliding component 5 along the axis direction of the yarn spreading roller 2. Among them, the guiding component 4 can adopt a structure such as a slide rail.

[0038] When switching the product specifications and keeping the width limit unchanged, by applying an external force to the adjustable yarn dividing fork 3, the diamond-shaped component 310 is under the action of an external force, such as Figure 4For example, the sliding component 5 deforms along the length direction of the guiding component 4, and the lateral spacing distance changes. Furthermore, by adjusting the number of running tows, the adjustment of the fixed width limit between different products can be achieved. In this way, multiple diamond-shaped components 310 can expand and contract along the axial direction of the yarn spreading roller 2 under the action of an external force, so that the length of the yarn dividing fork can be adjusted according to actual requirements, thereby adapting to the yarn processing requirements of different widths, different specifications and materials, reducing the misoperation of operators and reducing the offline time of the carbon fiber tow, thus improving production efficiency; the sliding fit between the sliding component 5 and the guiding component 4 further enhances the flexibility of the device. The sliding component 5 can move smoothly along the guiding component 4, ensuring that the adjustable yarn dividing fork 3 remains stable during the adjustment process, while being convenient for operation and adjustment, helping to reduce the entanglement and friction between yarns, and improving the quality and consistency of the yarns.

[0039] In some embodiments of the present invention, referring to Figure 3 , the diamond-shaped component 310 includes four connecting rods 301. The four connecting rods 301 are sequentially hinged end to end through a connecting piece 302 to form a diamond shape, and adjacent two diamond-shaped components 310 share a connecting piece 302. Exemplarily, referring to Figure 2 and Figure 4 , the diamond-shaped component 310 includes four connecting rods 301. The four connecting rods 301 are sequentially hinged end to end through a connecting piece 302 to form a diamond shape. Among them, the connecting piece 302 includes a smooth rod screw. Since the connecting rods 301 are hinged to each other, when the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 and towards the two end faces of the guiding component 4, at this time, the length direction of the diamond-shaped component 310 will become longer and the height direction will become shorter; when the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 and towards the center point of the guiding component 4, at this time, the length direction of the diamond-shaped component 310 will become shorter and the height direction will become higher. It can be understood that within the same length interval, when the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 and towards the two end faces of the guiding component 4, the number of diamond-shaped components 310 in this interval is two. When the sliding component 5 drives the diamond-shaped component 310 to move along the length direction of the guiding component 4 and towards the center point of the guiding component 4, the number of diamond-shaped components 310 in this interval is three, thereby realizing the decrease or increase of the number of buckles. By adjusting the number and position of the diamond-shaped components 310, the number of buckles can be flexibly adjusted, so as to meet the changes in different yarn specifications and production requirements, without replacing equipment or components, which helps to reduce the downtime caused by changing yarn specifications or adjusting equipment, thus improving production efficiency and ensuring the quality and integrity of the yarn.

[0040] In some embodiments of the present invention, referring to Figure 3, the guiding component 4 includes a first slide rail 410 and a second slide rail (not shown in the figure) which are axially symmetrically arranged; that is to say, the first slide rail 410 and the second slide rail have the same structure. The sliding component 5 is arranged between the first slide rail 410 and the second slide rail. In this way, since the first slide rail 410 and the second slide rail are axially symmetrically arranged, the sliding component 5 can be more evenly supported when moving between them, thereby improving the stability of the entire structure, helping to reduce vibration and shaking, and making the movement of the sliding component 5 smoother.

[0041] In some embodiments of the present utility model, referring to Figure 3 , the first slide rail 410 includes a first slide plate 411, a second slide plate 412 and a third slide plate 413. Among them, the first end of the second slide plate 412 is perpendicularly connected to the first slide plate 411, the second end of the second slide plate 412 is perpendicularly connected to the third slide plate 413, the first slide plate 411 and the third slide plate 413 are arranged in parallel, and a first chute 414 for the sliding component 5 to slide is formed between the first slide plate 411, the second slide plate 412 and the third slide plate 413. Among them, the opening direction of the first chute 414 is set towards the sliding component 5. The sliding component 5 is arranged in the first chute 414, and the opening of the first chute 414 directly faces the sliding component 5, so that the sliding component 5 can be more easily aligned with the first chute 414 during installation, reducing the installation difficulty. The opening direction of the first chute 414 provides a clear guide for the sliding component 5, ensuring that the sliding component 5 can stably slide along a predetermined trajectory in the first chute 414. The design of the first chute 414 helps to reduce the deviation or shaking of the sliding component 5 during the sliding process, improving the stability and accuracy of the movement.

[0042] In some embodiments of the present utility model, referring to Figure 3 , a first limiting block 415 extending along the length direction of the third slide plate 413 is provided on the side of the third slide plate 413 close to the first slide plate 411. In this way, the first limiting block 415 provides a clear movement boundary for the sliding component 5, ensuring that the sliding component 5 will not exceed the predetermined range during the sliding process, helping to improve the movement accuracy of the sliding component 5. The presence of the first limiting block 415 helps to reduce the shaking or deviation of the sliding component 5 during the sliding process, thereby enhancing the stability of the sliding component 5 and preventing it from falling off or being damaged due to external force or movement inertia during the movement of the sliding component 5.

[0043] In some embodiments of the present utility model, the second slide rail includes a fourth slide plate, a fifth slide plate, and a sixth slide plate. Among them, the first end of the fifth slide plate is perpendicularly connected to the fourth slide plate, and the second end of the fifth slide plate is perpendicularly connected to the sixth slide plate. A second chute for the sliding component 5 to slide is formed among the fourth slide plate, the fifth slide plate, and the sixth slide plate, and the opening of the second chute is arranged opposite to the opening of the first chute 414. In this way, the opening of the second chute is arranged opposite to the opening of the first chute 414, which can form a certain restraining effect, prevent the sliding component 5 from accidentally falling off during the sliding process, improve the reliability of the device, and reduce the safety risk caused by falling off. The relative arrangement of the second slide rail and the first slide rail 410 makes the overall structure more compact, helps to save space, and improves the overall performance and efficiency of the device.

[0044] In some embodiments of the present utility model, a second limiting block extending along the length direction of the sixth slide plate is provided on the side of the sixth slide plate close to the fourth slide plate. In this way, the second limiting block provides a clear movement boundary for the sliding component 5, ensures that the sliding component 5 will not exceed the predetermined range during the sliding process, helps to improve the movement accuracy of the sliding component 5, and the presence of the second limiting block helps to reduce the shaking or deviation of the sliding component 5 during the sliding process, thereby enhancing the stability of the sliding component 5 and preventing it from falling off or being damaged due to external force or movement inertia during the movement of the sliding component 5.

[0045] In some embodiments of the present utility model, referring to Figure 2 and Figure 3 , the sliding component 5 includes a connecting block 501. A first pulley 502 is provided on the side of the connecting block 501 close to the first slide rail 410, a second pulley 503 is provided on the side of the connecting block 501 close to the second slide rail, and the upper surface of the connecting block 501 is connected to the diamond-shaped component 310 through a fixed rod. With such a design, the first pulley 502 and the second pulley 503 enable the sliding component 5 to slide more smoothly on the first slide rail 410 and the second slide rail. The pulleys can reduce the friction between the sliding component 5 and the slide rail, thereby reducing the energy consumption and wear during the sliding process, helping to maintain the stability of the sliding component 5 on the slide rail, and reducing the shaking or deviation caused by external force or movement inertia.

[0046] In some embodiments of the present utility model, referring to Figure 3, the first pulley 502 is arranged in the first chute 414, and the first pulley 502 is located between the first limiting block 415 and the second sliding plate 412; the second pulley 503 is arranged in the second chute, and the second pulley 503 is located between the second limiting block and the fifth sliding plate. In this way, the first pulley 502 and the second pulley 503 are respectively restricted by the first limiting block 415 and the second limiting block. The first pulley 502 is restricted between the second sliding plate 412 and the first limiting block 415, and the second pulley 503 is restricted between the fifth sliding plate and the second limiting block, which can prevent the pulley from moving or shaking excessively in the chute, thereby improving the stability and reliability of the entire structure. At the same time, it prevents the first pulley 502 and the second pulley 503 from disengaging from the slide rail, providing a reliable guarantee for the movement of the diamond-shaped component 310.

[0047] In some embodiments of the present invention, referring to Figure 2 and Figure 4 , a sliding component 5 is connected to the lower end of each diamond-shaped component 310. In this way, the sliding component 5 can enable the diamond-shaped component 310 to move freely in the length direction of the guiding component 4, so that the diamond-shaped component 310 can adjust its position according to different working requirements, thereby improving the flexibility of the entire device. At the same time, the diamond-shaped components 310 and the sliding components 5 are arranged in one-to-one correspondence, which can ensure that each diamond-shaped component 310 can be precisely controlled during movement. Each diamond-shaped component 310 is controlled by an independent sliding component 5, and can thus be flexibly adjusted according to different working requirements, thereby improving the flexibility of the system.

[0048] The content described above can be implemented alone or in various combinations, and these variant ways are all within the protection scope of the present invention.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable yarn dividing device is arranged between a yarn unwinding rack and a yarn spreading roller, and is characterized in that, Comprising: An adjustable yarn dividing fork, the adjustable yarn dividing fork includes a plurality of diamond-shaped components, the plurality of diamond-shaped components are arranged along the axis direction of the yarn spreading roller, the diamond-shaped components can expand and contract along the axis direction of the yarn spreading roller under the action of an external force, and a sliding component is arranged at the lower end of the adjustable yarn dividing fork; A guiding component, the guiding component is arranged parallel to the axis direction of the yarn spreading roller, and the sliding component is slidably matched with the guiding component to guide the movement of the sliding component along the axis direction of the yarn spreading roller.

2. The adjustable yarn splitting device according to claim 1, wherein, The diamond-shaped component includes four connecting rods, and the four connecting rods are sequentially hinged end to end through a connecting piece to form a diamond shape, and two adjacent diamond-shaped components share one connecting piece.

3. The adjustable yarn splitting device according to claim 1, wherein The guiding component includes a first slide rail and a second slide rail which are axially symmetrically arranged; The sliding component is arranged between the first slide rail and the second slide rail.

4. The adjustable yarn splitting device according to claim 3, characterized in that The first slide rail includes a first slide plate, a second slide plate and a third slide plate. Among them, the first end of the second slide plate is vertically connected to the first slide plate, and the second end of the second slide plate is vertically connected to the third slide plate. A first chute for the sliding component to slide is formed between the first slide plate, the second slide plate and the third slide plate.

5. The adjustable yarn splitting device according to claim 4, wherein A first limiting block extending along the length direction of the third slide plate is arranged on the side of the third slide plate close to the first slide plate.

6. The adjustable yarn splitting device according to claim 5, wherein, The second slide rail includes a fourth slide plate, a fifth slide plate and a sixth slide plate. Among them, the first end of the fifth slide plate is vertically connected to the fourth slide plate, and the second end of the fifth slide plate is vertically connected to the sixth slide plate. A second chute for the sliding component to slide is formed between the fourth slide plate, the fifth slide plate and the sixth slide plate, and the opening of the second chute is arranged opposite to the opening of the first chute.

7. The adjustable yarn splitting device according to claim 6, wherein, A second limiting block extending along the length direction of the sixth slide plate is arranged on the side of the sixth slide plate close to the fourth slide plate.

8. The adjustable yarn splitting device according to claim 7, characterized in that, The sliding component includes a connecting block. A first pulley is arranged on the side of the connecting block close to the first slide rail, a second pulley is arranged on the side of the connecting block close to the second slide rail, and the upper surface of the connecting block is connected to the diamond-shaped component through a fixing rod.

9. The adjustable yarn splitting device according to claim 8, characterized in that, The first pulley is arranged in the first chute, and the first pulley is located between the first limiting block and the second slide plate; The second pulley is arranged in the second chute, and the second pulley is located between the second limiting block and the fifth slide plate.

10. The adjustable yarn splitting device according to any one of claims 1-9, characterized in that, A sliding component is connected to the lower end of each diamond-shaped component.

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