Carbon fiber drawing traction device

By designing a carbon fiber wire drawing traction device, the uniform stretching of carbon fiber is achieved by using the driving motor and guide roller structure, the problems of low wire drawing efficiency and unsatisfactory effect in the prior art are solved, and a more efficient and uniform wire drawing effect is achieved.

CN222630692UActive Publication Date: 2025-03-18ZHEJIANG XINGHUI NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202420541989.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-20
Publication Date
2025-03-18
Estimated Expiration
2034-03-20

AI Technical Summary

Technical Problem

In the prior art, the wire drawing efficiency and the unsatisfactory wire drawing effect are mainly due to the low manual wire drawing efficiency and uneven wire drawing force, which lead to wire breakage.

Method used

A carbon fiber wire drawing traction device is designed, including a yarn assembly, a traction assembly and a feeding assembly. The traction assembly adopts a driving motor to drive the guide roller structure to achieve uniform stretching of the wire harness and prevent displacement through the limiting ring and guide cylinder.

Benefits of technology

Through the automated traction device, the wire drawing efficiency and effect are improved, the tension is more uniform, the wire breakage is reduced, and the overall working efficiency is improved.

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Abstract

The utility model relates to a carbon fiber drawing traction device which is matched with a spool and comprises a creel assembly, a traction assembly and a material receiving assembly. The creel assembly comprises a first supporting frame and a plurality of yarn guide rods, and the yarn guide rods are arranged on the two sides of the first supporting frame. The traction assembly comprises a limiting structure, a guide roller structure, a driving motor and a foot switch, the limiting structure comprises a limiting ring and a long guide cylinder, the limiting ring and the long guide cylinder are located on the two sides of the guide roller structure, the guide roller structure is in transmission connection with the driving motor, and the foot switch is arranged on a connecting wire of the driving motor and a power source. The material receiving assembly and the traction assembly have height difference, and the material receiving assembly is lower than the traction assembly. According to the technical scheme, the problems that in the prior art, the wire drawing efficiency is low, and the wire drawing effect is not ideal are effectively solved.
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Description

Technical Field

[0001] The present application relates to the technical field of textile equipment, and in particular to a carbon fiber drawing and traction device. Background Art

[0002] Before the carbon fiber is opened and compounded into a mesh, rolls of filament carbon fiber need to be installed on the creel, and multiple filament carbon fibers are aggregated into bundles by pulling wires, and then chopped by a short cutter to cut the filament carbon fiber into short chopped wires of uniform length. In this process, the efficiency of wire drawing determines the work efficiency of the entire short cutting process. At present, wire drawing is done manually, and the efficiency of manual wire drawing depends entirely on manpower, resulting in a limited number of yarn tubes that can be installed on the creel during the wire drawing operation. At the same time, due to the uneven tension applied to the filaments during manual wire drawing, wire breakage is prone to occur during the wire drawing operation, further reducing the efficiency of wire drawing. Utility Model Content

[0003] The present application provides a carbon fiber drawing and traction device to solve the problems of low drawing efficiency and unsatisfactory drawing effect in the prior art.

[0004] According to a carbon fiber wire drawing traction device provided in the present application, the carbon fiber wire drawing traction device cooperates with the yarn bobbin, and the carbon fiber wire drawing traction device includes: a yarn frame assembly, a traction assembly and a material receiving assembly. The yarn frame assembly includes a first support frame and a plurality of yarn guide rods, and the plurality of yarn guide rods are arranged on both sides of the first support frame. The traction assembly includes a limit structure, a guide roller structure, a drive motor and a foot switch, and the limit structure includes a limit ring and a guide long cylinder, and the limit ring and the limit long cylinder are located on both sides of the guide roller structure. The guide roller structure is connected to the drive motor by transmission, and the foot switch is arranged on the connection between the drive motor and the power supply. There is a height difference between the material receiving assembly and the traction assembly, and the height of the material receiving assembly is lower than the traction assembly.

[0005] In some embodiments, the foot switch includes a pedal, a base plate, an elastic member, a connecting column and a wire connecting plate. The middle part of the pedal is rotatably connected to the base plate. The elastic member is arranged between the pedal and the base plate. The elastic member is close to the second end of the pedal. The wire connecting plate is connected together with the first end of the pedal through the connecting column.

[0006] In some embodiments, the guide roller structure has a main roller, an auxiliary roller and a second support frame. The main roller and the auxiliary roller are both rotatably arranged on the second support frame. The auxiliary roller is arranged above the main roller. The main roller is transmission-connected to the drive motor, and the drive motor is arranged on the second support frame.

[0007] In some embodiments, an adjustment long hole is provided on the second support frame, and the auxiliary roller includes a first rotating shaft and an auxiliary roller body. The first rotating shaft is movably arranged in the adjustment long hole and tightened by a nut, and the auxiliary roller body is rotatably arranged on the circumferential outer side of the first rotating shaft.

[0008] In some embodiments, the main roller includes a second rotating shaft and a main roller body, the driving motor is rotationally connected to the second rotating shaft via a coupling, and the main roller body and the second rotating shaft are fixedly connected and rotate synchronously.

[0009] In some embodiments, the diameter of the primary roller is greater than the diameter of the secondary roller, and the ratio of the diameters of the primary roller to the secondary roller is between 1.35:1 and 1.15:1.

[0010] In some embodiments, a colloid layer is provided on the surface of the main roller body and the auxiliary roller body, and the colloid selected for the colloid layer is antistatic colloid.

[0011] In some embodiments, the yarn guide rods are arranged in an array, and the yarn guide rods have an inclination angle, and the inclination angle is between 15° and 30°.

[0012] In some embodiments, the first support frame has a plurality of guide rods, the plurality of guide rods are all connected to the first support frame, the plurality of guide rods are arranged parallel to the guide roller structure, and the plurality of guide rods are all located on the same vertical plane.

[0013] In some embodiments, the creel assembly further comprises a third support frame, the third support frame is arranged at a side away from the creel assembly, and the guide long tube is fixedly connected to the third support frame and tilted downward.

[0014] According to the technical solution of the present application, the yarn drum is rotatably arranged on the yarn guide rod, and each yarn drum is wound with filament carbon fiber. The ends of multiple filament carbon fibers are manually screwed together to form a wire harness, and then the wire harness is manually pulled through the limit ring and placed at the guide roller structure. The driving motor drives the guide roller structure to rotate, and the rotation of the guide roller structure drives the manually screwed wire harness to move, and then drives the multiple unscrewed filament carbon fibers to move and gradually form a wire harness. The foot switch is arranged on the wiring of the driving motor and the power supply, and the connection between the driving motor and the power supply is realized by manually stepping on the foot switch, so that the rotation of the guide roller structure is controllable, reducing the safety hazards caused by the rotation of the guide roller structure when the wire harness is manually placed. At the same time, after the wire harness is manually placed on the guide roller structure, the subsequent wire drawing and the formation of the wire harness are realized by the rotation of the guide roller structure, so the wire drawing effect can be greatly improved, and the wire drawing of the guide roller structure is more uniform in tension and has a better wire drawing effect than manual wire drawing. The wire harness passes through the guide long tube to prevent the displacement of the wire harness. There is a height difference between the material receiving assembly and the traction assembly. The material receiving assembly is lower than the traction assembly. The wire harness falls into the material receiving assembly under the action of gravity and is contained in the material receiving assembly to prepare for subsequent operations. The technical solution of the present application effectively solves the problems of low wire drawing efficiency and unsatisfactory wire drawing effect in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A schematic structural diagram of a carbon fiber drawing and traction device according to an embodiment of the present application is shown;

[0018] Figure 2 A schematic diagram showing the structure of a traction assembly according to an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram of the structure of a limit ring in an embodiment of the present application is shown;

[0020] Figure 4 A schematic structural diagram of a foot switch according to an embodiment of the present application is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Yarn frame assembly; 11. First support frame; 111. Guide rod; 12. Yarn guide rod; 13. Third support frame; 20. Traction assembly; 21. Limiting structure; 211. Limiting ring; 212. Guide cylinder; 22. Guide roller structure; 221. Main roller; 222. Auxiliary roller; 223. Second support frame; 23. Drive motor; 24. Foot switch; 241. Pedal; 242. Bottom plate; 243. Elastic member; 244. Connecting column; 245. Wire connecting piece; 30. Material connection assembly. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0026] like Figures 1 to 3 As shown, the embodiment relates to a carbon fiber drawing traction device, which cooperates with the yarn drum and includes: a yarn frame assembly 10, a traction assembly 20 and a material receiving assembly 30. The yarn frame assembly 10 includes a first support frame 11 and a plurality of yarn guide rods 12, and the plurality of yarn guide rods 12 are arranged on both sides of the first support frame 11. The traction assembly 20 includes a limit structure 21, a guide roller structure 22, a drive motor 23 and a foot switch 24. The limit structure 21 includes a limit ring 211 and a guide long tube 212. The limit ring 211 and the guide long tube 212 are located on both sides of the guide roller structure 22. The guide roller structure 22 is connected to the drive motor 23 in transmission connection, and the foot switch 24 is arranged on the connection between the drive motor 23 and the power supply. There is a height difference between the material receiving assembly 30 and the traction assembly 20, and the height of the material receiving assembly 30 is lower than that of the traction assembly 20.

[0027] By applying the technical solution of this embodiment, the yarn drum is rotatably arranged on the yarn guide rod 12, and each yarn drum is wound with filament carbon fiber. The ends of multiple filament carbon fibers are manually screwed together to form a wire harness, and then the wire harness is manually pulled through the limit ring 211 and placed at the guide roller structure 22. The drive motor 23 drives the guide roller structure 22 to rotate, and the rotation of the guide roller structure 22 drives the manually screwed wire harness to move, and then drives the multiple unscrewed filament carbon fibers to move and gradually form a wire harness. The foot switch 24 is set on the connection between the drive motor 23 and the power supply. The drive motor 23 is connected to the power supply by manually stepping on the foot switch 24, so that the rotation of the guide roller structure 22 is controllable, reducing the safety hazards caused by the rotation of the guide roller structure 22 when the wire harness is manually placed. At the same time, after the wire harness is manually placed on the guide roller structure 22, the subsequent wire drawing and wire harness formation are realized by the rotation of the guide roller structure 22, so the wire drawing effect can be greatly improved. Compared with manual wire drawing, the wire drawing of the guide roller structure 22 has more uniform tension and better wire drawing effect. The wire harness passes through the guide cylinder 212 to prevent the displacement of the wire harness. There is a height difference between the material receiving assembly 30 and the traction assembly 20. The height of the material receiving assembly 30 is lower than that of the traction assembly 20. The wire harness falls into the material receiving assembly 30 under the action of gravity and is contained by the material receiving assembly 30 to prepare for subsequent operations. The technical solution of this embodiment effectively solves the problems of low wire drawing efficiency and unsatisfactory wire drawing effect in the prior art.

[0028] It should be noted that the yarn frame assembly 10 also includes a support plate, which is arranged on the second support frame 223. The support plate is arranged away from the guide cylinder 212. Multiple limit rings 211 are all arranged on the top of the support plate. The support plate is arranged parallel to the guide roller structure 22, and multiple filament carbon fibers pass through the limit rings 211 and enter the guide roller structure 22.

[0029] like Figure 4As shown, in some embodiments, the foot switch 24 includes a pedal 241, a base plate 242, an elastic member 243, a connecting column 244 and a wire connecting piece 245. The middle portion of the pedal 241 and the base plate 242 are rotatably connected. The elastic member 243 is arranged between the pedal 241 and the base plate 242, and the elastic member 243 is close to the second end of the pedal 241. The wire connecting piece 245 is connected together with the first end of the pedal 241 through the connecting column 244. The foot switch 24 further includes a third rotating shaft, a first bracket and a second bracket. The first bracket and the second bracket are both arranged on the bottom plate 242. The pedal 241 is located between the first bracket and the second bracket. The third rotating shaft passes through the first bracket, the middle part of the pedal 241 and the second bracket respectively, so that the pedal 241 can rotate. The foot switch 24 has an on state and an off state. In the on state, the second end of the pedal 241 is subjected to a downward force. At this time, the first end of the pedal 241 rotates counterclockwise upward, driving the connecting column 244 and the wire connecting piece 245 to move synchronously. At this time, the wire connecting piece 245 is connected to the circuit, so that the drive motor 23 is connected to the power supply, and the guide roller structure 22 rotates. In the off state, the force of the second end of the pedal 241 is removed, and the elastic member 243 is reset to drive the pedal 241 to rotate clockwise upward. The pedal 241 drives the connecting column 244 and the wire connecting piece 245 to move synchronously. At this time, the wire connecting piece 245 is disconnected from the circuit, so that the drive motor 23 is disconnected from the power supply, and the guide roller structure 22 stops rotating. The operator can control the rotation of the guide roller structure 22 by stepping on the pedal, which can greatly improve the safety during the operation.

[0030] like Figure 2 As shown, in some embodiments, the guide roller structure 22 has a main roller 221, an auxiliary roller 222 and a second support frame 223. The main roller 221 and the auxiliary roller 222 are both rotatably arranged on the second support frame 223. The auxiliary roller 222 is arranged above the main roller 221. The main roller 221 is in transmission connection with the drive motor 23, and the drive motor 23 is arranged on the second support frame 223. The drive motor 23 drives the main roller 221 to rotate synchronously. The wire harness is located between the main roller 221 and the auxiliary roller 222. Under the action of friction, the wire harness gradually moves, and the auxiliary roller 222 rotates synchronously.

[0031] like Figure 2As shown, in some embodiments, the second support frame 223 is provided with an adjustment long hole, and the auxiliary roller 222 includes a first rotating shaft and an auxiliary roller body. The first rotating shaft is movably arranged in the adjustment long hole and tightened by a nut, and the auxiliary roller body is rotatably arranged on the circumferential outer side of the first rotating shaft. The second support frame 223 is provided with two adjustment long holes, and the two ends of the first rotating shaft are respectively arranged in the two adjustment long holes, and can move along the adjustment long holes, and are tightened by nuts, so that the distance between the main roller 221 and the auxiliary roller 222 can be adjusted, and can adapt to wire harnesses of more sizes. The auxiliary roller 222 is used as a pressure roller, and its pressure can also be adjusted.

[0032] In some embodiments, the main roller 221 includes a second rotating shaft and a main roller body, the driving motor 23 and the second rotating shaft are connected to rotate through a coupling, and the main roller body and the second rotating shaft are fixedly connected and rotate synchronously. The driving motor 23 drives the second rotating shaft to rotate, and the main roller body rotates synchronously and cooperates with the auxiliary roller body to pull the wire harness. The diameter of the main roller 221 is greater than the diameter of the auxiliary roller 222, and the diameter ratio of the main roller 221 to the auxiliary roller 222 is between 1.35:1 and 1.15:1. Since the main roller 221 is driven by the driving motor 23 and the auxiliary roller 222 is driven to rotate by friction, the diameter of the main roller 221 is greater than the diameter of the auxiliary roller 222, so that the auxiliary roller 222 is easier to rotate. In this embodiment, the diameter ratio of the main roller 221 to the auxiliary roller 222 is selected to be 1.25:1. The surfaces of the main roller body and the auxiliary roller body are both provided with a colloid layer, and the colloid selected for the colloid layer is an antistatic colloid. The setting of the colloid layer can reduce the scraping of the wire bundle on the surface of the guide roller structure 22, and prevent the phenomenon of stopping the machine to remove the wire and delaying the production. The colloid can be made of synthetic rubber or silicone.

[0033] like Figure 1 As shown, in some embodiments, the yarn guide rods 12 are arranged in an array, and the yarn guide rods 12 are arranged on the first support frame 11. The yarn guide rods 12 have an inclination angle, and the inclination angle is between 15° and 30°. The yarn guide rods 12 are all inclined upward. This arrangement is for placing the yarn drum on the yarn guide rods 12. When the filament carbon fiber is pulled, the yarn drum is not easy to be separated from the yarn guide rods 12, and no additional limiting device is required. After all the filament carbon fiber on a yarn drum is used up, it is only necessary to pull out and replace it with a new yarn drum. The new filament carbon fiber is screwed together with the old filament carbon fiber to continue drawing.

[0034] like Figure 1As shown, in some embodiments, the first support frame 11 has a plurality of guide rods 111, and the plurality of guide rods 111 are connected to the first support frame 11, and the plurality of guide rods 111 are arranged in parallel with the guide roller structure 22, and the plurality of guide rods 111 are located on the same vertical plane. Each filament carbon fiber is firstly pulled into the guide roller structure 22 by the guide rods 111 so that it is located in the same straight line, which makes the guide roller structure 22 more uniformly stressed during operation, thereby greatly improving the accuracy of the wire harness.

[0035] It should be noted that the guide rod 111 includes a guide rod roller body, a connecting shaft, a first abutment plate and a second abutment plate, the connecting shaft is located between the first abutment plate and the second abutment plate, the connecting shaft is fixedly connected to the first support frame 11, the guide rod roller body is rotatably arranged on the circumferential outer side of the connecting shaft, the first abutment plate is fixedly connected to the first end of the connecting shaft, the second abutment plate is fixedly connected to the second end of the connecting shaft, the sizes of the first abutment plate and the second abutment plate are both larger than the sizes of the guide rod roller body, which enables the first abutment plate and the second abutment plate to limit the filament carbon fiber respectively when the filament carbon fiber moves on the guide rod roller body to prevent the filament carbon fiber from escaping from the guide rod roller body.

[0036] like Figure 2 As shown, in some embodiments, the creel assembly 10 further includes a third support frame 13, which is disposed on a side away from the creel assembly 10, and the guide tube 212 is fixedly connected to the third support frame 13 and tilted downward. The third support frame 13 is used to support the guide tube 212. After the wire bundle flows out from between the main roller 221 and the auxiliary roller 222, it first passes through the guide tube 212 and then flows into the material receiving assembly 30. The guide tube 212 can guide the wire bundle, so that the wire bundle can accurately flow into the material receiving assembly 30.

[0037] In some embodiments, the foot switch 24 includes a push block, a pedal board 241, a base plate 242, an elastic member 243, a connecting column 244 and a wire connecting piece 245. The push block is movably arranged between the pedal board 241 and the base plate 242. The middle part of the pedal board 241 and the base plate 242 are rotatably connected. The elastic member 243 is arranged between the pedal board 241 and the base plate 242. The elastic member 243 is close to the second end of the pedal board 241. The wire connecting piece 245 is connected to the first end of the pedal board 241 through the connecting column 244. The foot switch 24 also includes a third rotating shaft, a first bracket and a second bracket. The first bracket and the second bracket are both arranged on the bottom plate 242. The pedal 241 is located between the first bracket and the second bracket. The third rotating shaft passes through the first bracket, the middle of the pedal 241 and the second bracket respectively, so that the pedal 241 can rotate. The foot switch 24 has an on state and an off state. In the on state, the operator places the abutting block between the pedal 241 and the bottom plate 242 near the second end of the pedal 241. At this time, the pedal rotates clockwise. The connecting column 244 and the wire connecting piece 245 rotate synchronously, the elastic member 243 is in a stretched state, and the wire connecting piece 245 moves down to connect with the line, so that the guide roller structure 22 is connected with the power supply. In the working state, the operator does not need to perform other operations, and it is always in the connected state. When an abnormal situation occurs, the operator kicks the top block away, and the elastic member rebounds. The pedal 241 rotates counterclockwise, and the connecting column 244 and the wire connecting piece 245 rotate synchronously. The wire connecting piece 245 moves up to disconnect from the line, so that the guide roller structure 22 is disconnected from the power supply.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A carbon fiber drawing and traction device, the carbon fiber drawing and traction device cooperates with a yarn tube, characterized in that: include: A yarn rack assembly (10), the yarn rack assembly (10) comprising a first support frame (11) and a plurality of yarn guide rods (12), wherein the plurality of yarn guide rods (12) are arranged on both sides of the first support frame (11); A traction assembly (20), the traction assembly (20) comprising a limit structure (21), a guide roller structure (22), a drive motor (23) and a foot switch (24), the limit structure (21) comprising a limit ring (211) and a guide long tube (212), the limit ring (211) and the guide long tube (212) being located on both sides of the guide roller structure (22), the guide roller structure (22) and the drive motor (23) being transmission-connected, and the foot switch (24) being arranged on the connection between the drive motor (23) and a power source; A material receiving assembly (30), wherein there is a height difference between the material receiving assembly (30) and the traction assembly (20), and the material receiving assembly (30) is lower in height than the traction assembly (20).

2. The carbon fiber drawing and traction device according to claim 1, characterized in that: The foot switch (24) comprises a pedal (241), a base plate (242), an elastic member (243), a connecting column (244) and a wire connecting piece (245); the middle portion of the pedal (241) and the base plate (242) are rotatably connected; the elastic member (243) is arranged between the pedal (241) and the base plate (242); the elastic member (243) is close to the second end of the pedal (241); and the wire connecting piece (245) is connected to the first end of the pedal (241) through the connecting column (244).

3. The carbon fiber drawing and traction device according to claim 1, characterized in that: The guide roller structure (22) comprises a main roller (221), an auxiliary roller (222) and a second support frame (223); the main roller (221) and the auxiliary roller (222) are both rotatably arranged on the second support frame (223); the auxiliary roller (222) is arranged above the main roller (221); the main roller (221) is transmission-connected to the drive motor (23); and the drive motor (23) is arranged on the second support frame (223).

4. The carbon fiber drawing and traction device according to claim 3, characterized in that: The second support frame (223) is provided with an adjustment long hole, and the auxiliary roller (222) includes a first rotating shaft and an auxiliary roller body, the first rotating shaft is movably inserted into the adjustment long hole and tightened by a nut, and the auxiliary roller body is rotatably arranged on the circumferential outer side of the first rotating shaft.

5. The carbon fiber drawing and traction device according to claim 4, characterized in that: The main roller (221) comprises a second rotating shaft and a main roller body, the driving motor (23) and the second rotating shaft are rotationally connected via a coupling, and the main roller body and the second rotating shaft are fixedly connected and rotate synchronously.

6. The carbon fiber drawing and traction device according to claim 5, characterized in that: The diameter of the main roller (221) is greater than the diameter of the auxiliary roller (222), and the diameter ratio of the main roller (221) to the auxiliary roller (222) is between 1.35:1 and 1.15:

1.

7. The carbon fiber drawing and traction device according to claim 6, characterized in that: The surfaces of the main roller body and the auxiliary roller body are both provided with a colloid layer, and the colloid selected for the colloid layer is antistatic colloid.

8. The carbon fiber drawing and traction device according to claim 1, characterized in that: The yarn guide rods (12) are arranged in an array, and the yarn guide rods (12) have an inclination angle, which is between 15° and 30°.

9. The carbon fiber drawing and traction device according to claim 8, characterized in that: The first support frame (11) has a plurality of guide rods (111), the plurality of guide rods (111) are all connected to the first support frame (11), the plurality of guide rods (111) are arranged in parallel with the guide roller structure (22), and the plurality of guide rods (111) are all located on the same vertical plane.

10. The carbon fiber drawing and traction device according to claim 1, characterized in that: The yarn frame assembly (10) further comprises a third support frame (13), wherein the third support frame (13) is arranged on a side away from the yarn frame assembly (10), and the guide tube (212) is fixedly connected to the third support frame (13) and tilted downward.