A carbon fiber winding device

By dynamically adjusting yarn tension and adaptively matching different specifications of carbon fiber winding devices, the problems of tension fluctuation and poor specification adaptability in traditional equipment have been solved, achieving uniform yarn coverage and winding, and improving the production quality and efficiency of three-dimensional braided composite materials.

CN224324932UActive Publication Date: 2026-06-05ZHEJIANG JINGGONG INTELLIGENT TEXTILE MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JINGGONG INTELLIGENT TEXTILE MASCH CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing carbon fiber three-dimensional weaving equipment suffers from large tension fluctuations during the winding process, poor equipment versatility, and inability to adapt to different specifications of carbon wire and bobbin, resulting in inconsistent yarn tension and uneven end faces, which affects weaving quality and efficiency.

Method used

The carbon fiber winding device adopts dynamic adjustment of yarn tension and adaptive adaptation to different K-number carbon filaments and bobbin specifications. Through the servo motor driven traverse mechanism and winding mechanism, combined with the cross layout of limit rollers, steering rollers and flattening rollers, it achieves uniform coverage and winding of yarn. It is equipped with sensor components for real-time monitoring and control.

Benefits of technology

It significantly improves the production quality and efficiency of carbon fiber three-dimensional braided composite materials, reduces the scrap rate, enhances the versatility and operational stability of the equipment, and meets the high-performance requirements of high-end equipment manufacturing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carbon fiber winding device, including cross -motion mechanism, winding mechanism, yarn spreading mechanism etc. The spacing roller of yarn spreading mechanism, deflection roller, flat roll cross -setting, cooperate cross -motion mechanism servo drive screw rod subassembly, realize different K number carbon silk multi -angle tension regulation and accurate flattening, evenly cover 100-500mm bobbin, and winding mechanism passes through the slidable upper slide and the winding shaft recess snap, and adapts to multi -specification bobbin, and yarn spreading roller subassembly matches different carbon silk technology. Servo motor drive, bearing low friction rotation and sensor stroke protection promote the stability of operation, and the clamping of silk piece subassembly, button board etc. Enhance the operation convenience and equipment rigidity. The device solves the problem of traditional equipment tension instability, poor versatility etc., reduces the scrap rate, and improves the winding efficiency, and is suitable for the precision production of high -end equipment manufacturing field high -performance carbon fiber.
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Description

Technical Field

[0001] This utility model relates to the field of carbon fiber three-dimensional weaving technology, and in particular to a carbon fiber winding device. Background Technology

[0002] In the fields of high-end equipment manufacturing and advanced composite materials, carbon fiber, with its excellent mechanical properties and lightweight characteristics, has become an indispensable strategic material for modern industry. Carbon fiber is a high-performance fiber material with a carbon content of 90%-99%, formed by carbonizing and graphitizing organic precursor fibers such as polyacrylonitrile fiber (PAN), pitch-based fiber, and viscose fiber at temperatures above 1000℃ under a nitrogen or argon protective atmosphere. Its tensile strength can reach over 3500 MPa, approximately 5-10 times that of steel, while its density is only 1.7-2.0 g / cm³. 3 Less than a quarter the weight of steel, this "lightweight and high-strength" characteristic has led to its widespread application in aerospace, new energy vehicles, and sporting goods. For example, in the aerospace field, carbon fiber composites are used to manufacture structural components such as aircraft wings and fuselage frames, which can reduce the weight of aircraft by 20%-30%, significantly improving fuel efficiency and flight performance. In the new energy vehicle industry, it is used in battery trays and body structural components, which can reduce the overall vehicle weight and extend the driving range.

[0003] Three-dimensional carbon fiber braided composites, as an important development direction of advanced composite materials, are becoming a key supporting material for the development of high-end equipment in the high-tech field. This material uses three-dimensional carbon fiber fabric as reinforcement, and through a spatial multi-directional weaving process, the fiber bundles interweave and penetrate each other in three-dimensional space, constructing a prefabricated structure with anisotropic reinforcement characteristics. Compared with traditional two-dimensional braided materials, three-dimensional braided composites can effectively overcome the defect of weak interlayer strength, significantly improve the mechanical properties and impact resistance in the thickness direction, and are particularly suitable for manufacturing high-performance components that bear complex loads, such as rocket engine casings and aero-engine fan blades. In recent years, with the continuous improvement of component performance requirements in aerospace, defense, and other fields, the demand for three-dimensional carbon fiber braided composites has experienced explosive growth, driving the rapid iteration and upgrading of related preparation technologies.

[0004] In the production process of carbon fiber three-dimensional braided composite materials, the uniformity of yarn spread and the stability of tension are the core factors determining the quality of the product. Currently, the conventional spindles commonly used in carbon fiber three-dimensional braiding machines are limited by structural dimensions, with a diameter typically only 20-100mm, and the length of yarn carried in a single operation is only tens to hundreds of meters, making it difficult to meet the needs of continuous and large-scale production. Therefore, in actual production, large rolls of carbon fiber (single roll length can reach several kilometers) need to be rewinded into smaller rolls suitable for the spindles. However, existing carbon fiber winding equipment suffers from several technical bottlenecks: First, traditional winding machines use a single roller structure and lack a dynamic tension adjustment mechanism, resulting in large tension fluctuations during winding (fluctuation range can reach ±15N). This causes uneven winding of the carbon fiber, leading to localized accumulation or loosening, which severely affects the yarn's spread and flatness and subsequent weaving quality. Second, the equipment lacks versatility. For carbon fibers with different K numbers (1K, 3K, 6K, etc., representing the number of strands of a single filament), their linear density and flexibility vary significantly, making it difficult for existing winding machines to match the winding process requirements of different specifications of carbon fibers. Third, for bobbins of different lengths, traditional winding machines lack an adaptive adjustment mechanism, failing to achieve uniform winding across the entire length of the bobbin. This results in uneven yarn ends after winding, easily causing yarn jamming and breakage during weaving. According to industry statistics, the scrap rate of three-dimensional woven products due to winding quality problems is as high as 10%-15%, not only wasting raw materials but also severely restricting production efficiency and economic benefits.

[0005] Existing technologies attempt to modify winding machines by adding tension sensors and servo motor drive systems. However, such improvements only achieve coarse closed-loop control of tension. When faced with complex conditions such as changes in carbon filament diameter and fluctuations in winding speed, the response speed is slow (response time > 50ms), failing to meet the dynamic adjustment requirements of high-speed winding. Some equipment uses a segmented roller design to improve winding uniformity, but this solution increases the complexity of the mechanical structure, resulting in high equipment maintenance costs and difficulty in adapting to different bobbin specifications. As carbon fiber three-dimensional weaving technology develops towards higher speed and precision, there is an urgent need to develop a winding device capable of achieving flat unfolding of carbon filaments with different K-numbers and uniform winding of bobbins of different lengths, ensuring high-quality and high-efficiency production of three-dimensional woven composite materials. Utility Model Content

[0006] In view of this, this utility model proposes a carbon fiber winding device. This device has the function of dynamically adjusting yarn tension and adaptively adapting to different kJ carbon fibers and bobbin specifications, enabling the carbon fibers to be laid out smoothly and wound evenly, effectively avoiding problems such as uneven yarn tension and uneven end faces during winding. By solving the technical bottlenecks of unstable tension control and poor versatility in traditional winding equipment, it can significantly improve the production quality and efficiency of three-dimensional woven carbon fiber composite materials, reduce scrap rate, reduce raw material waste, and thus improve production efficiency, aiming to solve some or all of the aforementioned technical problems.

[0007] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0008] A carbon fiber winding device includes a traversing mechanism, a winding mechanism, a yarn spreading mechanism, and a main functional plate. The traversing mechanism and the winding mechanism are vertically fixed on the main functional plate, and the winding mechanism is vertically mounted on the traversing mechanism.

[0009] In a structure that optimizes the aforementioned solution, the traversing mechanism includes a housing, a lead screw assembly, a connecting seat, a slider, a fixed block, a servo motor A, and a coupling A. The housing is fixed to the main functional board, the lead screw assembly is disposed inside the housing, the servo motor A is disposed on the back of the main functional board, the end of the lead screw assembly is connected to the servo motor A via the coupling A, the connecting seat is disposed on the lead screw assembly, the slider is connected to the connecting seat, and the fixed block is fixed on the slider. The traversing mechanism drives the lead screw assembly through the servo motor A, converting the rotational motion into the linear reciprocating motion of the slider, thereby driving the fixed block and the yarn spreading mechanism to move laterally. Through the reciprocating motion of the traversing mechanism, the yarn spreading mechanism is translated along the length of the take-up bobbin, ensuring that the yarn evenly covers the entire length of the bobbin during the winding process, avoiding the problem of uneven end faces caused by fixed-position winding in traditional equipment, and achieving uniform lateral distribution of the yarn. Precise control of traverse speed and stroke, combined with the high-precision drive of the servo motor and the transmission accuracy of the lead screw assembly, allows for adjustment of traverse speed and reciprocating boundaries according to different bobbin specifications and winding processes, adapting to the widening requirements of carbon wires with different K numbers and improving the versatility of the equipment.

[0010] In a structure that optimizes the aforementioned solution, the winding mechanism includes a take-up spool, a winding shaft, a bearing mounting assembly, an upper slide assembly, a lower fixed seat, a servo motor B, and a coupling B. The bearing mounting assembly is fixed to the main function board. The winding shaft cooperates with the bearing mounting assembly. The lower fixed seat is fixed to the winding shaft via the upper slide assembly. The take-up spool is sleeved on the winding shaft, with one end connected to the upper slide assembly and the other end connected to the lower fixed seat. The servo motor B is located on the back of the main function board, and the end of the winding shaft is connected to the servo motor B via the coupling B. The winding mechanism clamps the take-up spool through the upper slide assembly and the lower fixed seat. The servo motor B drives the winding shaft through the coupling B. Combined with the bearings within the bearing mounting assembly, this achieves high-precision, low-vibration rotation of the winding shaft, avoiding sudden tension changes caused by rotational jamming, and providing a stable power foundation for uniform winding.

[0011] In a structure that optimizes the aforementioned solution, the yarn spreading mechanism includes a support and a yarn spreading roller assembly. The support is vertically fixed to the fixed block, and the yarn spreading roller assembly is mounted on the support. The yarn spreading mechanism is fixed to the fixed block of the traversing mechanism via the support. As the traversing mechanism moves laterally, the yarn spreading roller evenly spreads the flattened yarn onto the surface of the bobbin, ensuring consistent yarn spacing and a flat end face during winding.

[0012] In a structure that optimizes the aforementioned solution, the yarn spreading roller assembly includes a limiting roller, a steering roller, and a flattening roller, arranged sequentially with their projections intersecting. The limiting roller restricts the lateral deviation of the yarn, ensuring it enters the subsequent roller group along a predetermined path; the steering roller changes the yarn direction and adjusts the tension distribution through angle changes to adapt to the tension requirements of carbon fibers with different flexibility; the flattening roller forces the yarn to flatten through roller surface pressure and contact area, eliminating bending or curling caused by uneven tension. The sequentially projected and intersecting arrangement of the limiting roller, steering roller, and flattening roller in the yarn spreading roller assembly eliminates yarn kinking and wrinkles by changing the contact angle and force direction of the yarn, ensuring that carbon fibers with different K-numbers (differences in linear density and flexibility) are spread out smoothly. The intersecting roller group design can apply multi-angle tension to the yarn, solving the problem of uneven spreading caused by traditional single-roller structures and avoiding local accumulation or loosening.

[0013] In a structure that optimizes the aforementioned solution, a sensor assembly is also included. This sensor assembly is mounted on the traverse mechanism and positions itself in conjunction with the yarn-laying mechanism. Two sensor assemblies are located at the upper end of the traverse mechanism. These sensors act as limiters during the reciprocating motion of the lead screw, further protecting the normal operation of the equipment. By monitoring the reciprocating motion boundary of the slider in the traverse mechanism in real time, when the slider approaches the extreme positions at both ends of the housing, the sensor triggers a signal to control the servo motor A to decelerate or stop, preventing mechanical collisions (such as interference between the yarn-laying mechanism and the winding mechanism) caused by excessive operation of the lead screw assembly, thus avoiding equipment damage. This also solves the problem of stroke control failure that may occur in traditional traverse mechanisms due to the lack of a limit mechanism, especially when manually adjusting the traverse position or when equipment malfunctions, providing dual safety protection for the system. Furthermore, the sensor signals can be fed back to the control system to calibrate the consistency between the actual motion range of the traverse mechanism and preset parameters (such as the reciprocating stroke corresponding to the bobbin length), ensuring that the yarn-laying mechanism moves uniformly across the entire length of the bobbin, indirectly ensuring the flatness of the yarn winding end face and avoiding localized missed winding or accumulation due to stroke deviation.

[0014] In a structure that optimizes the aforementioned solution, a yarn clamping assembly is also included. This assembly is fixed to the main functional board and provides a yarn clamping function. When the machine is stopped, the yarn can be secured to the clamping assembly. When the winding device stops operating, the clamping pieces can clamp the yarn ends, preventing the yarn from loosening, falling off, or becoming tangled due to the inertial rotation of the winding shaft or external disturbances. Traditional equipment lacks yarn securing measures when stopped, easily leading to loose ends and requiring re-threading and repositioning upon restarting. The yarn clamping assembly significantly improves operational convenience and reduces auxiliary time.

[0015] In a structure that optimizes the aforementioned solution, a support plate is also included. One end of the support plate is connected to the main functional plate, and the other end is connected to the traversing mechanism. The support plate connects the main functional plate and the housing of the traversing mechanism, enhancing the overall structural rigidity. When the lead screw assembly reciprocates at high speed, it reduces the displacement of the slider position caused by vibration, ensuring the smoothness of the lateral movement of the yarn spreading mechanism, indirectly ensuring the yarn winding accuracy. At the same time, it supports the weight of the traversing mechanism, preventing the main functional plate from bending or the connection from loosening due to long-term operation, thus improving the durability of the equipment.

[0016] In a structure that optimizes the aforementioned solution, the head of the winding shaft is provided with several grooves, and the upper slide assembly is engaged within these grooves. The upper slide assembly can slide along the grooves of the winding shaft, achieving rapid positioning by engaging the grooves. This allows for tool-free adjustment of the bobbin installation position, solving the adaptation problem of traditional equipment for 100-500mm bobbins and ensuring uniform winding of the yarn along the entire length of the bobbin. Simultaneously, the groove structure restricts the radial movement of the upper slide assembly, ensuring coaxiality of the bobbin after installation and preventing uneven winding caused by eccentricity.

[0017] In a structure that optimizes the aforementioned solution, a bearing is housed within the bearing mounting assembly. The bearing's lubrication and load-bearing capacity extend the service life of the winding shaft, reduce maintenance frequency, and simultaneously reduce mechanical friction between the winding shaft and the mounting base, lowering energy loss and noise, ensuring stability during high-speed rotation, and preventing tension fluctuations caused by changes in rotational resistance.

[0018] In a structure that optimizes the aforementioned solution, a button panel is provided at the end of the housing. The buttons on the button panel can control the start and stop of the winding device, adjust the reciprocating position of the traverse device, and adjust the deviation that occurs during the yarn winding process. According to the program settings, the winding work of yarns with different widths and bobbins of different lengths can be completed.

[0019] In a structure that optimizes the aforementioned solution, a cover plate is provided on the right side of the housing, with an elongated groove on the cover plate. A slider is positioned within the groove, and a fixing block is mounted on the slider. The elongated groove on the cover plate guides the linear movement of the slider, restricts its trajectory, and ensures lateral movement accuracy. At the same time, it seals the housing to prevent carbon fiber dust and fiber debris from entering the lead screw assembly, reducing wear and malfunctions and lowering maintenance costs.

[0020] Compared to existing technologies, the carbon fiber winding device described in this invention enables the flat unfolding of carbon filaments with different K-numbers and the uniform winding of bobbins of different lengths, ensuring high-quality and high-efficiency production of three-dimensional braided composite materials. Specific beneficial effects are as follows:

[0021] The carbon fiber winding device provided by this utility model achieves multi-angle tension adjustment and precise flattening of carbon filaments with different K-numbers through the cross-layout of the limiting roller, steering roller, and flattening roller in the yarn spreading mechanism. Combined with the servo-driven lead screw assembly of the traverse mechanism, it ensures that the yarn evenly covers bobbins of different lengths from 100-500mm, solving the problems of inconsistent winding tightness and uneven end faces in traditional equipment. The winding mechanism adopts a sliding upper slide seat and a grooved engagement structure with the winding shaft, quickly adapting to bobbins of various specifications. The composite tension mechanism of the spreading roller assembly matches 1K / 3K / 6K carbon filament processes, overcoming material compatibility limitations. The servo motor drive, combined with low-friction bearing rotation, sensor stroke protection, and closed-loop control, improves the tension adjustment response speed and operational stability. The yarn clamping plate assembly fixes the yarn ends, the button panel supports parameter adjustment, and the support plate and cover plate enhance rigidity and prevent dust, reducing maintenance costs. This device significantly reduces the scrap rate of three-dimensional woven products, improves winding efficiency, and has advantages such as strong material adaptability, low cost, and easy maintenance, meeting the precision production needs of high-end equipment manufacturing for high-performance carbon fibers. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a carbon fiber winding device according to the present invention.

[0024] Figure 2 This is a schematic diagram of the fiber path during the winding process of the carbon fiber winding device described in this utility model.

[0025] Figure 3 This is a schematic diagram of the transverse movement mechanism described in this utility model.

[0026] Figure 4 This is a schematic diagram of the winding mechanism described in this utility model.

[0027] Figure 5 This is a schematic diagram of the yarn unfolding mechanism described in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Traverse mechanism; 2. Winding mechanism; 3. Yarn spreading mechanism; 4. Main function board; 5. Yarn clamping plate assembly; 6. Support plate; 7. Sensor assembly.

[0030] 11. Housing; 12. Lead screw; 13. Connecting seat; 14. Slider; 15. Fixing block; 16. Servo motor A; 17. Coupling A; 18. Cover plate; 19. Button panel.

[0031] 21. Take-up drum; 22. Winding shaft; 23. Bearing housing mounting assembly; 24. Upper slide assembly; 25. Lower fixed seat; 26. Servo motor B; 27. Coupling B.

[0032] 31. Support frame; 32. Yarn spreading roller assembly. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] like Figure 1-5As shown, a carbon fiber winding device includes a traversing mechanism 1, a winding mechanism 2, a yarn unfolding mechanism 3, and a main functional plate 4. Each mechanism is spatially positioned and fixedly connected via the main functional plate 4. In the traversing mechanism 1, a lead screw assembly 12 is installed vertically within a housing 11 fixed to the left side of the main functional plate 4. A horizontal long groove on the right end cover 18 defines the movement trajectory of the slider 14. A servo motor A16 on the back of the main functional plate 4 drives the lead screw to rotate via a coupling A17, causing the connecting seat 13, fitted onto the lead screw nut, to move the slider 14 embedded in the long groove. The sliding block 15 at the top of the slider 14 moves with it to drive the yarn spreading mechanism 3 to translate along the length of the take-up bobbin 21; in the winding mechanism 2, the left end of the horizontally arranged winding shaft 22 is fixed to the middle of the main function plate 4 by a bearing mounting seat assembly 23 with a built-in deep groove ball bearing, the right end is fixed to the lower fixing seat 25, and the left end is fitted with an upper sliding seat assembly 24 with a protrusion on the inner wall. The protrusion is engaged with the annular groove at the head of the winding shaft 22 and fixed by bolts to clamp the take-up bobbin 21 sleeved on the outside of the winding shaft. The servo motor B26 on the back of the main function plate 4 The winding shaft 22 is driven to rotate and wind up the yarn via coupling B27. In the yarn spreading mechanism 3, the vertical side of the bracket 31 is fixed to the fixing block 15 of the traversing mechanism, and the horizontal side is equipped with a yarn spreading roller assembly 32 consisting of a limiting roller, a steering roller, and a spreading roller. The three are arranged sequentially along the yarn travel direction and their axis projections intersect. The limiting roller is horizontally set to limit the lateral deviation of the yarn, the steering roller is tilted at 15° to adjust the tension distribution, and the spreading roller is vertically set to force the yarn to spread. The yarn spreading roller assembly 32 moves with the traversing mechanism 1 to evenly spread the spread yarn. On the surface of the bobbin; in terms of auxiliary structure, the proximity sensors 7 on the left and right sides of the upper end of the traverse mechanism housing 11 correspond to the positions of the slider 14, and the trigger signal controls the servo motor A16 to prevent collision and calibrate the stroke. The yarn clamping plate assembly 5 at the front of the main function board 4 is composed of two elastic metal plates with adjustable gap to clamp the beginning and end of the yarn. The triangular support plate 6 connects the main function board 4 and the traverse mechanism housing 11 to enhance rigidity. The button plate 19 at the left end of the housing 11 integrates the "start / stop" and traverse stroke adjustment buttons to adapt to different needs and correct deviations.

[0038] The carbon fiber winding device operates on the following principle:

[0039] This device is in operation at... Figure 2 The core working principle of the state shown lies in the coordinated motion and tension adjustment mechanism of the traverse mechanism, the take-up mechanism, and the unwinding mechanism:

[0040] The yarn first passes through the limiting roller of the yarn spreading mechanism 3 from the input side. This roller is set horizontally and limits the lateral movement range of the yarn to ensure that it accurately enters the subsequent roller group along the axial direction of the take-up bobbin 21. Then the yarn goes around to the guide roller, which is set at an inclination of 15°. By changing the yarn direction and contact angle, the tension distribution is adjusted in real time to adapt to the flexibility differences of carbon yarns with different K numbers, such as 1K, 3K, and 6K, and to avoid sudden tension changes caused by different linear densities. After being adjusted by the guide roller, the yarn then passes through the flattening roller, which is set vertically. Relying on the combination of roller surface pressure and contact area, the yarn twisting and wrinkles are forcibly eliminated, and the yarn is flattened.

[0041] In terms of power transmission, servo motor A16 drives the lead screw assembly 12 of the traverse mechanism 1 to reciprocate, converting the rotational motion into linear motion through the lead screw and nut pair. This drives the connecting seat 13, slider 14, and the yarn spreading mechanism 3 fixed thereon to reciprocate laterally along the long groove of the cover plate 18. The motion trajectory and speed are preset by the program and can be manually adjusted via the button panel 19 to ensure that the moving speed of the yarn spreading mechanism 3 is precisely matched with the rotational speed of the winding mechanism 2. At the same time, servo motor B26 drives the winding shaft 22 to rotate at high speed through coupling B27. The take-up bobbin 21 rotates synchronously with the winding shaft. Its left end is engaged with the groove at the head of the winding shaft by the slidable upper slide assembly 24, and its right end is clamped by the fixed lower fixing seat 25, which can quickly adapt to bobbins of different lengths from 100-500mm.

[0042] During collaborative operation, as the yarn spreading mechanism 3 moves laterally with the traverse mechanism 1, it evenly lays the flattened yarn on the surface of the take-up bobbin 21. Through the linkage control of the traverse speed and the winding speed, it achieves helical winding of the yarn with equal spacing and no accumulation, ensuring that the yarn end face is flat throughout the entire length of the bobbin. The sensor assembly 7 at the upper end of the traverse mechanism housing 11 monitors the position of the slider 14 in real time. When it approaches the limit stroke, it triggers a signal to control the servo motor A16 to decelerate or stop, avoiding interference between the yarn spreading mechanism and the take-up mechanism. At the same time, it calibrates the traverse stroke to match the current bobbin length, ensuring winding accuracy.

[0043] When the machine stops, the yarn clamping plate assembly 5 located at the front of the main function plate 4 manually clamps the beginning and end of the yarn to prevent the yarn from loosening and falling off due to the inertial rotation of the winding shaft or external disturbance. The winding process can be quickly restarted without re-threading. The support plate 6 enhances the overall structural rigidity and reduces vibration offset during the high-speed movement of the traverse mechanism, ensuring smooth movement of the yarn spreading mechanism and indirectly improving the uniformity of yarn spreading.

[0044] In summary, this device, through the core principle of "lateral yarn spreading - winding linkage - tension self-adaptation," achieves dynamic tension adjustment of carbon filaments with different K-numbers and uniform winding of bobbins of different lengths. It solves the problems of large tension fluctuations, uneven winding, and poor specification adaptability of traditional equipment, and meets the stringent requirements of high-end carbon fiber three-dimensional weaving for winding accuracy and efficiency.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber winding device, characterized in that: It includes a traverse mechanism (1), a winding mechanism (2), a yarn unfolding mechanism (3), and a main function plate (4). The traverse mechanism (1) and the winding mechanism (2) are vertically fixed on the main function plate (4), and the winding mechanism (2) is vertically set on the traverse mechanism (1).

2. The carbon fiber winding device according to claim 1, characterized in that: The traverse mechanism (1) includes a housing (11), a lead screw assembly (12), a connecting seat (13), a slider (14), a fixing block (15), a servo motor A (16), and a coupling A (17). The housing (11) is fixed on the main function plate (4). The lead screw assembly (12) is located inside the housing (11). The servo motor A (16) is located on the back of the main function plate (4). The end of the lead screw assembly (12) is connected to the servo motor A (16) through the coupling A (17). The connecting seat (13) is located on the lead screw assembly (12). The slider (14) is connected to the connecting seat (13). The fixing block (15) is fixed on the slider (14).

3. The carbon fiber winding device according to claim 1, characterized in that: The winding mechanism (2) includes a take-up spool (21), a winding shaft (22), a bearing mounting assembly (23), an upper slide assembly (24), a lower fixed seat (25), a servo motor B (26), and a coupling B (27). The bearing mounting assembly (23) is fixed on the main function plate (4). The winding shaft (22) cooperates with the bearing mounting assembly (23). The lower fixed seat (25) is fixed on the winding shaft (22) and the upper slide assembly (24). The take-up spool (21) is sleeved on the winding shaft (22), with one end connected to the upper slide assembly (24) and the other end connected to the lower fixed seat (25). The servo motor B (26) is located on the back of the main function plate (4). The end of the winding shaft (22) is connected to the servo motor B (26) through the coupling B (27).

4. The carbon fiber winding device according to claim 2, characterized in that: The yarn spreading mechanism (3) includes a bracket (31) and a yarn spreading roller assembly (32). The bracket (31) is vertically fixed on the fixed block (15), and the yarn spreading roller assembly (32) is set on the bracket (31).

5. The carbon fiber winding device according to claim 4, characterized in that: The yarn spreading roller assembly (32) includes a limiting roller, a turning roller, and a flattening roller, which are arranged in sequence and their projections intersect.

6. The carbon fiber winding device according to claim 1, characterized in that: It also includes a sensor assembly (7), which is mounted on the traverse mechanism (1) and is positioned in conjunction with the yarn spreading mechanism (3).

7. The carbon fiber winding device according to claim 1, characterized in that: It also includes a wire clamping plate assembly (5), which is fixed on the main function board (4).

8. The carbon fiber winding device according to claim 1, characterized in that: It also includes a support plate (6), one end of which is connected to the main functional plate (4), and the other end is connected to the traversing mechanism (1).

9. The carbon fiber winding device according to claim 3, characterized in that: The head of the winding shaft (22) is provided with several grooves, and the upper slide assembly (24) is locked in the grooves.

10. The carbon fiber winding device according to claim 1, characterized in that: The bearing is housed within the bearing mounting assembly (23).