Surface treatment device for carbon fiber production
By designing a surface treatment device for carbon fiber production, which uses cleaning fluid and drive rollers to clean the carbon fiber surface, the problem of uneven sizing caused by contaminants on the carbon fiber surface was solved, thus improving production efficiency and product quality.
Patent Information
- Application Number
- CN202521671695.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-08-07
AI Technical Summary
Residual contaminants on the carbon fiber surface lead to uneven coating of the sizing agent, affecting the production efficiency and quality of carbon fiber products.
Design a surface treatment device for carbon fiber production, including a cleaning tank and a drive roller shaft, using cleaning fluid and a guide plate to clean the carbon fiber surface, ensuring a uniform and continuous coating during sizing.
It improves the production efficiency and quality of carbon fiber products, ensures uniform and continuous coating during sizing, and reduces damage to carbon fibers during transmission.
Smart Images
Figure CN224395227U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of carbon fiber production and manufacturing technology, and specifically relates to a surface treatment device for carbon fiber production. Background Technology
[0002] Before leaving the factory, carbon fiber needs to be sized, which means coating the carbon fiber with a sizing agent. This can prevent the carbon fiber from being damaged by friction during transportation, weaving, and prepreg preparation, and at the same time make the carbon fiber bundle more flexible and easier to handle and weave.
[0003] The actual problem is that there are residual contaminants on the surface of carbon fibers, such as organic fragments that were not completely decomposed during the carbonization process or deposited carbon particles. As a result, the sizing agent cannot completely penetrate and adhere to the fiber, but will partially adhere to the contaminant layer. This makes the sizing agent coating uneven and discontinuous, which makes the filaments with uneven coating more prone to problems such as tangling, yarn snagging, and uneven tension during the subsequent weaving and braiding process, thus affecting the production efficiency and product quality of carbon fiber products. Utility Model Content
[0004] This application proposes a surface treatment device for carbon fiber production, which can be used to treat residual contaminants on the surface of carbon fibers, so as to make the coating of the sizing treatment uniform and continuous, thereby improving the production efficiency and product quality of carbon fiber products.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A surface treatment apparatus for carbon fiber production includes a cleaning tank, which comprises a first cleaning tank and a second cleaning tank. A releasing roller is disposed at one end of the first cleaning tank, and a first drive roller is disposed at the other end of the first cleaning tank. A taking-up roller is disposed at one end of the second cleaning tank, and a second drive roller is disposed at the other end of the second cleaning tank. A third drive roller is disposed between the first drive roller and the second drive roller. Supporting crossbars are respectively disposed on the upper parts of the first and second cleaning tanks, and a guiding plate is disposed at the lower part of the supporting crossbars. The guiding plates are respectively disposed within the first and second cleaning tanks.
[0007] In one embodiment of this application, a first motor is provided on the support crossbar, the first motor is connected to the blade drive, and the blade is disposed below the beam guide plate.
[0008] In one embodiment of this application, the installation height of the third drive roller shaft is greater than the installation height of the first drive roller shaft and the second drive roller shaft.
[0009] In one embodiment of this application, a liquid collection tank is provided below the third transmission roller shaft.
[0010] In one embodiment of this application, an extrusion roller is provided near the take-up roller.
[0011] In one embodiment of this application, the beam guide plate includes a top plate and vertical plates at the lower ends of both ends of the top plate, and the vertical plates have through holes.
[0012] In one embodiment of this application, the edge of the through hole of the vertical plate is provided with an arc-shaped chamfer.
[0013] In one embodiment of this application, multiple reels are provided on the release roller shaft, the first drive roller shaft, the second drive roller shaft, the third drive roller shaft, and the take-up roller shaft.
[0014] In summary, the technical solution proposed in this application has the following beneficial technical effects: This application uses a transmission roller shaft and a beam guide plate to make the carbon fiber bundle move between the first cleaning tank and the second cleaning tank. The cleaning liquid in the first and second cleaning tanks cleans the surface of the carbon fiber and removes residual pollutants on the surface of the carbon fiber, so that the coating of the carbon fiber in the subsequent sizing treatment is uniform and continuous, thereby improving the production efficiency and product quality of carbon fiber products. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A three-dimensional structural schematic diagram of a surface treatment apparatus for carbon fiber production provided in an embodiment of this application;
[0017] Figure 2 This is a side view of a surface treatment apparatus for carbon fiber production provided in an embodiment of this application.
[0018] Figure 3 This is a side view of a surface treatment apparatus for carbon fiber production provided in an embodiment of this application.
[0019] Figure 4 A top view of a surface treatment apparatus for carbon fiber production provided in an embodiment of this application;
[0020] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at point AA.
[0021] In the diagram: 100 coils;
[0022] Cleaning pool 1;
[0023] First cleaning tank 2, release roller 21, first transmission roller 22;
[0024] Second cleaning tank 3, gathering roller 31, extrusion roller 311, second transmission roller 32;
[0025] Third drive roller 4, liquid collection tank 41;
[0026] Support crossbar 5, beam guide plate 51, top plate 511, vertical plate 512, first motor 52, blade 521. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0028] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.
[0029] In this application, the terms "installation," "connection," and "linking" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.
[0030] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0031] This embodiment provides a surface treatment apparatus for carbon fiber production, see reference. Figures 1-5As shown, the system includes a cleaning tank 1, which includes a first cleaning tank 2 and a second cleaning tank 3. One end of the first cleaning tank 2 is provided with a release roller shaft 21, and the other end of the first cleaning tank 2 is provided with a first transmission roller shaft 22. One end of the second cleaning tank 3 is provided with a take-up roller shaft 31, and the other end of the second cleaning tank 3 is provided with a second transmission roller shaft 32. A third transmission roller shaft 4 is provided between the first transmission roller shaft 22 and the second transmission roller shaft 32. The upper parts of the first cleaning tank 2 and the second cleaning tank 3 are respectively provided with support crossbars 5, and the lower part of the support crossbars 5 is provided with a guide plate 51. The guide plate 51 is respectively provided in the first cleaning tank 2 and the second cleaning tank 3.
[0032] In the above embodiment, the cleaning tank 1 includes a first cleaning tank 2 and a second cleaning tank 3. One end of the first cleaning tank 2 is provided with a release roller 21, on which untreated carbon fiber bundles are wound. A support crossbar 5 is provided at the upper part of the first cleaning tank 2, and a guide plate 51 is provided below the support crossbar 5. The guide plate 51 extends into the cleaning tank and is used to guide the carbon fiber bundles to contact the cleaning liquid in the cleaning tank for cleaning treatment. Furthermore, the carbon fiber bundle passes through the first drive roller 22, which is used to drive and support the carbon fiber bundle. In addition, a third drive roller 4 is provided between the first drive roller 22 and the second drive roller 32. The third drive roller 4 is used to drive the carbon fiber bundle in the first cleaning tank 2 to the second drive roller 32. The carbon fiber bundle then comes into contact with the cleaning liquid in the second cleaning tank 3 through the guide plate 51 in the second cleaning tank for cleaning treatment. The carbon fiber bundle is then connected to the take-up roller 31. The take-up roller 31 rotates and winds the cleaned carbon fiber bundle onto the take-up roller 31 for storage. That is, the carbon fiber bundle is driven between the first cleaning tank 2 and the second cleaning tank 3 by the cooperation of the drive roller and the guide plate 51. The cleaning liquid in the first cleaning tank 2 and the second cleaning tank 3 cleans the surface of the carbon fiber and removes residual contaminants on the surface of the carbon fiber, so that the coating of the carbon fiber in the subsequent sizing treatment is uniform and continuous, thereby improving the production efficiency and product quality of carbon fiber products.
[0033] In one embodiment of this application, see [reference] Figure 3 As shown, a first motor 52 is provided on the support crossbar 5. The first motor 52 is connected to the blade 521 in a transmission manner. The blade 521 is located below the beam guide plate 51.
[0034] In the above embodiment, the first motor 52 is connected to the blade 521 via a transmission rod. The first motor 52 drives the blade 521 to agitate the cleaning fluid in the cleaning tank, causing the cleaning fluid to flow and impacting the carbon fiber bundle in the cleaning tank. This helps to wash away impurities attached to the surface of the carbon fiber, thereby improving the cleaning efficiency of the carbon fiber. In addition, the blade 521 is positioned below the guide plate 51, that is, the blade 521 is driven below the carbon fiber bundle, preventing the rotating blade 521 from colliding with the carbon fiber bundle and causing damage to the carbon fiber.
[0035] In one embodiment of this application, see [reference] Figure 2 and Figure 4 As shown, the installation height of the third transmission roller shaft 4 is greater than the installation height of the first transmission roller shaft 22 and the second transmission roller shaft 32.
[0036] In the above embodiment, the installation height of the third transmission roller shaft 4 is greater than the installation height of the first transmission roller shaft 22 and the second transmission roller shaft 32, such as... Figure 2 As shown, the carbon fiber bundle is kept at an angle as it is driven outward from the first cleaning tank 2. Due to gravity, the cleaning fluid adhering to the carbon fiber bundle flows back into the first cleaning tank 2 along the angled bundle, preventing a large outflow of cleaning fluid from the first cleaning tank 2 and thus improving the cleaning efficiency. Furthermore, the installation height of the third drive roller 4 is greater than that of the second drive roller 32. The third drive roller 32 supports the carbon fiber bundle at a certain height, allowing it to pass over the side of the second cleaning tank 3 for cleaning, preventing damage to the carbon fiber from rubbing against the side of the second cleaning tank 3 during transmission.
[0037] In one embodiment of this application, see [reference] Figure 1 As shown, a liquid collection tank 41 is provided below the third transmission roller shaft 4.
[0038] In the above embodiment, the liquid collection tank 41 is used to contain the liquid droplets dripping from the carbon fiber bundle, so as to prevent the cleaning liquid droplets in the carbon fiber bundle from falling outside the cleaning tank during the transmission of the third transmission roller 4, causing pollution to the ground of the working area.
[0039] In one embodiment of this application, see [reference] Figure 1 As shown, an extrusion roller 311 is provided near the take-up roller 31.
[0040] In the above embodiment, the extrusion roller 311 is used to extrude the carbon fiber bundle before the winding roller 31 winds and collects the carbon fiber bundle, thereby squeezing out most of the free water entrained in the carbon fiber bundle during the cleaning process, which is beneficial to reduce the load and energy consumption of subsequent drying of carbon fiber.
[0041] In one embodiment of this application, see [reference] Figure 5 As shown, the beam guide plate 51 includes a top plate 511 and vertical plates 512 at the lower ends of both ends of the top plate 511, and the vertical plates 512 have through holes.
[0042] In the above embodiment, the carbon fiber bundle enters through the through hole of the vertical plate 512 at one end of the top plate 511 and exits through the through hole of the vertical plate 512 at the other end of the top plate 511. The through hole of the vertical plate 512 is immersed in the cleaning fluid, so that the carbon fiber bundle can fully contact the cleaning fluid during the transmission between the guide plates 51, which is beneficial to improving the cleaning effect of the carbon fiber bundle.
[0043] In one embodiment of this application, the edge of the through hole of the vertical plate 512 is provided with an arc-shaped chamfer.
[0044] In the above embodiment, the arc-shaped chamfer on the edge of the through hole of the vertical plate 512 is used to prevent the carbon fiber bundle from being scratched or damaged by rubbing against the edge of the through hole.
[0045] In one embodiment of this application, see [reference] Figure 1 As shown, multiple coils 100 are provided on the release roller shaft 21, the first transmission roller shaft 22, the second transmission roller shaft 32, the third transmission roller shaft 4, and the take-up roller shaft 31.
[0046] In the above embodiments, multiple coils 100 are provided on the releasing roller 21, the first transmission roller 22, the second transmission roller 32, the third transmission roller 4, and the taking-up roller 31. The rollers drive the coils 100 to rotate, which can simultaneously perform transmission and cleaning on multiple carbon fiber bundles. That is, the coils 100 play a role in separating each carbon fiber bundle, preventing multiple carbon fiber bundles from tangling and knotting each other during transmission, which is beneficial to improving the transmission and cleaning efficiency of carbon fiber bundles.
[0047] In actual use of this application: a release roller 21 is provided at one end of the first cleaning tank 2, and untreated carbon fiber bundles are wound on the release roller 21. A support crossbar 5 is provided at the upper part of the first cleaning tank 2, and a guide plate 51 is provided below the support crossbar 5. The guide plate 51 extends into the cleaning tank and is used to guide the carbon fiber bundles to come into contact with the cleaning liquid in the cleaning tank for cleaning treatment. Furthermore, the carbon fiber bundle passes through the first drive roller 22, which provides transmission support for the carbon fiber bundle. A third drive roller 4 is positioned between the first and second drive rollers 32, transmitting the carbon fiber bundle from the first cleaning tank 2 to the second drive roller 32. The carbon fiber bundle then passes through the guide plate 51 in the second cleaning tank 3, where it comes into contact with the cleaning liquid for cleaning. The carbon fiber bundle is then connected to the take-up roller 31, which rotates to wind the cleaned carbon fiber bundle around itself for storage. In other words, the transmission rollers and guide plate 51 work together to transmit the carbon fiber bundle between the first and second cleaning tanks. Furthermore, each drive roller is equipped with multiple coils 100. The rollers drive the coils 100 to rotate, allowing for simultaneous transmission and cleaning of multiple carbon fiber bundles. The coils 100 separate each individual carbon fiber bundle, preventing them from tangling and knotting during transmission. Furthermore, during the initial cleaning of the carbon fiber bundles in the first cleaning tank 2, organic solvents such as acetone are placed in the first cleaning tank 2 to remove oil stains or insoluble organic matter from the carbon fiber surface. Deionized water is placed in the second cleaning tank 3. This serves two purposes: firstly, to clean the organic solvents and attached impurities from the carbon fiber surface; and secondly, because tap water contains a large amount of ions (such as Ca²⁺, Mg²⁺, Cl⁻) compared to ordinary tap water, any residue of these ions on the carbon fiber surface will severely affect the subsequent sizing effect and the performance of the carbon fiber composite material. Therefore, the deionized water and organic solvents in the cleaning tanks need to be cleaned and replaced as needed. Furthermore, a servo motor is installed on one side of each roller. The servo motor controls the transmission speed of the rollers on the carbon fiber bundles. In practice, the movement speed of the carbon fiber bundles in the cleaning tank should not be too fast to ensure that impurities are fully dissolved and diffused into the cleaning solution, thereby improving the cleanliness of the carbon fiber surface cleaning process.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A surface treatment apparatus for carbon fiber production, characterized in that, The system includes a cleaning tank (1), which includes a first cleaning tank (2) and a second cleaning tank (3). One end of the first cleaning tank (2) is provided with a release roller (21), and the other end of the first cleaning tank (2) is provided with a first transmission roller (22). One end of the second cleaning tank (3) is provided with a take-up roller (31), and the other end of the second cleaning tank (3) is provided with a second transmission roller (32). A third transmission roller (4) is provided between the first transmission roller (22) and the second transmission roller (32). The upper parts of the first cleaning tank (2) and the second cleaning tank (3) are respectively provided with a support crossbar (5), and the lower part of the support crossbar (5) is provided with a guide plate (51). The guide plate (51) is respectively located in the first cleaning tank (2) and the second cleaning tank (3).
2. The surface treatment apparatus for carbon fiber production according to claim 1, characterized in that, A first motor (52) is provided on the support crossbar (5), and the first motor (52) is connected to the blade (521) for transmission. The blade (521) is located below the beam guide plate (51).
3. The surface treatment apparatus for carbon fiber production according to claim 1, characterized in that, The installation height of the third drive roller (4) is greater than the installation height of the first drive roller (22) and the second drive roller (32).
4. The surface treatment apparatus for carbon fiber production according to claim 3, characterized in that, A liquid collection tank (41) is provided below the third transmission roller (4).
5. The surface treatment apparatus for carbon fiber production according to claim 1, characterized in that, An extrusion roller (311) is provided near the gathering roller (31).
6. The surface treatment apparatus for carbon fiber production according to claim 1, characterized in that, The beam guide plate (51) includes a top plate (511) and vertical plates (512) at the lower ends of both ends of the top plate (511), and the vertical plates (512) have through holes.
7. The surface treatment apparatus for carbon fiber production according to claim 6, characterized in that, The vertical plate (512) has an arc-shaped chamfered edge on the edge of the through hole.
8. The surface treatment apparatus for carbon fiber production according to any one of claims 1-7, characterized in that, Multiple coils (100) are provided on the release roller (21), the first drive roller (22), the second drive roller (32), the third drive roller (4), and the take-up roller (31).