A carbon fiber surface treatment equipment

Abstract

The present invention relates to the technical field of carbon fiber production, and in particular to a carbon fiber surface treatment device. The present invention provides a carbon fiber surface treatment device that avoids continuous oxidation of surface-treated carbon fibers and reduces the instability of electrolyte flow. A carbon fiber surface treatment device includes a box body and a cathode plate, wherein the cathode plate is installed in the lower part of the box body, and also includes a slow flow plate, a conveying assembly, a baffle mechanism, etc. The box body is connected to a slow flow plate, which is located above the cathode plate. The upper part of the box body is provided with a conveying assembly, and the right part of the box body is provided with a baffle mechanism. The first baffle moves to the left to close the opening of the slow flow plate, thereby blocking the current generated by the cathode plate and the electrolyte from continuously oxidizing the surface-treated carbon fibers. The second baffle, the fixed plate, and the telescopic plate can buffer the flow of electrolyte around the carbon fibers, reduce the instability of the electrolyte flow, and increase the attachment of new ecological oxygen on the surface of the carbon fibers.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber production, and in particular to a carbon fiber surface treatment device. Background Art

[0002] Carbon fiber has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance. It is mainly used as a reinforcement for composite materials. After high-temperature carbonization or graphitization heat treatment, carbon fiber exhibits strong hydrophobicity, resulting in low interfacial bonding strength between the fiber and the resin matrix, which directly affects the difficulty of the composite material to exert excellent physical and chemical properties. Therefore, it is necessary to surface treat the carbon fiber before the composite material is produced. In the carbon fiber surface treatment process, the anodic electrolytic oxidation method is usually used to electrolytically oxidize the carbon fiber surface. The anodic electrolytic oxidation method uses carbon fiber as an anode to cause the surface of the carbon fiber to undergo an oxidation-reduction reaction with the new ecological oxygen generated by the electrolytic reaction to complete the surface modification. At present, when the existing technology feeds the carbon fiber into the electrolytic cell, the electrolyte in the electrolytic cell will flow due to the pulling of the carbon fiber, resulting in instability of the electrolyte flow, reducing the adhesion of the new ecological oxygen, and when collecting the carbon fiber after the surface treatment, the current generated by the cathode plate and the electrolyte cannot be prevented in time from continuously oxidizing the carbon fiber, which causes greater damage to the strength of the carbon fiber.

[0003] How to design a carbon fiber surface treatment device that avoids continuous oxidation of surface-treated carbon fiber and reduces the instability of electrolyte flow is a technical problem that this patent needs to solve. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that when the carbon fiber is fed into the electrolytic cell, the electrolyte in the electrolytic cell will flow due to the pulling of the carbon fiber, resulting in unstable electrolyte flow and reducing the adhesion of new ecological oxygen, and when collecting the carbon fiber after surface treatment, the current generated by the cathode plate and the electrolyte cannot be prevented in time from continuously oxidizing the carbon fiber, causing great damage to the strength of the carbon fiber. The technical problem to be solved is: to provide a carbon fiber surface treatment equipment that can avoid continuous oxidation of the surface-treated carbon fiber and reduce the instability of the electrolyte flow.

[0005] Technical solution: A carbon fiber surface treatment device includes a box body and a cathode plate. The cathode plate is installed at the lower part of the box body, and also includes a slow flow plate, a conveying component, a baffle mechanism and a baffle mechanism. The box body is connected with a slow flow plate, and the slow flow plate is located above the cathode plate. The upper part of the box body is provided with a conveying component. The right part of the box body is provided with a baffle mechanism for blocking the continuous oxidation of the surface-treated carbon fiber by the current generated by the cathode plate and the electrolyte. The baffle mechanism includes a moving component and a first baffle. The middle part of the right side of the baffle mechanism is provided with a moving component. The middle part of the slow flow plate is evenly spaced and slidably connected with the first baffle. The rear part of the first baffle is connected to the moving component. The middle part of the slow flow plate is evenly spaced with through holes. The moving component drives the first baffle to move left to close the through hole of the slow flow plate to block The current generated by the cathode plate and the electrolyte continuously oxidizes the surface-treated carbon fiber. A flow baffle mechanism for buffering the flow of electrolyte around the carbon fiber is provided inside the box. The flow baffle mechanism includes a second baffle, a fixed plate, a telescopic plate and a loosening assembly. The second baffles are connected to the left and right sides of the upper part of the box, and the fixed plates are connected to the left and right sides of the top of the slow-flow plate. The fixed plates are respectively located directly below the second baffles. The telescopic plates are slidably connected between the fixed plates, and springs are connected between the fixed plates and the bottom of the telescopic plates. A loosening assembly is provided between the baffle mechanism and the flow baffle mechanism. The moving assembly drives the loosening assembly to loosen the restriction on the telescopic plate, and the telescopic plate moves upward. The second baffle, the fixed plate and the telescopic plate can buffer the flow of electrolyte around the carbon fiber.

[0006] Furthermore, the conveying assembly includes a first roller, a support frame, a second roller and a motor. The first rollers are rotatably connected to the left and right sides of the interior of the box, the first roller is located above the slow flow plate, the left and right sides of the upper part of the box are connected to the support frames, the upper part of the support frames is rotatably connected to the second rollers, and a motor is installed on the upper right side of the rear wall of the box, and the output shaft of the motor is connected to the rear end of the second roller on the right side through a coupling.

[0007] Furthermore, the moving assembly includes a first bracket, a cylinder and a sliding rod. The first bracket is connected to the middle right side of the box body, the cylinder is installed on the right side of the first bracket, the sliding rod is slidably connected to the middle right side of the box body, the right end of the sliding rod is connected to the telescopic rod of the cylinder, and the rear part of the first baffle is connected to the sliding rod. The cylinder drives the sliding rod to move to the left, and the sliding rod drives the first baffle to move to the left to close the opening of the slow flow plate.

[0008] Furthermore, the release component includes a pushing column and a wedge block. The left end of the sliding rod is connected to the pushing column, and the rear side of the left wall of the telescopic plate is connected to the wedge block. The upper part of the pushing column is stuck on the wedge block, and the sliding rod drives the pushing column to move to the left and separate from the wedge block, thereby releasing the restriction on the telescopic plate.

[0009] Furthermore, it also includes a slow flow mechanism for adding electrolyte to the electrolyte, the slow flow mechanism includes a second bracket, a frame and a hose, the second bracket is connected to the upper left side of the box, the frame is installed at the lower part of the second bracket, the right side of the frame is connected to the box, and the left side of the frame is connected to the hose, which is connected to the container for storing electrolytes, and the container for storing electrolytes adds electrolytes to the box through the hose and the frame.

[0010] Furthermore, a rotating plate is also included, and the frame is rotatably connected to the rotating plate for reducing the flow rate of the electrolyte flowing into the box.

[0011] Furthermore, it also includes a buffer mechanism for buffering the flow of electrolyte around the carbon fiber, the buffer mechanism includes a third bracket and a third baffle, the third brackets are evenly connected to the front and rear sides of the middle of the flow buffer plate, and the third brackets are connected to the third baffles for buffering the flow of electrolyte around the carbon fiber.

[0012] Furthermore, it also includes a wiping mechanism for scraping off excess electrolyte on the carbon fiber. The wiping mechanism includes a sliding sleeve and a wiping block. The sliding sleeve is connected to the upper right side of the interior of the box. The inner side of the sliding sleeve is slidably connected to the wiping block for scraping off excess electrolyte on the carbon fiber, and the wiping blocks are in contact with each other.

[0013] Furthermore, it also includes a harmful gas treatment mechanism for collecting harmful gases, the harmful gas treatment mechanism includes a fourth bracket, an exhaust fan and a pipeline, the fourth bracket is connected to the upper middle part of the rear wall of the box body, the exhaust fan is installed between the upper parts of the fourth bracket, the top of the exhaust fan is connected to the pipeline, the lower part of the pipeline is connected to the box body, the pipeline is connected to the gas treatment equipment, the exhaust fan extracts the harmful gas generated during the oxidation of carbon fiber, and discharges the harmful gas into the gas treatment equipment through the pipeline.

[0014] The present invention has the following advantages: the first baffle moves to the left to close the opening of the slow flow plate, thereby blocking the current generated by the cathode plate and the electrolyte from continuously oxidizing the carbon fiber whose surface has been treated. The second baffle, the fixed plate and the telescopic plate can buffer the flow of the electrolyte around the carbon fiber, reduce the instability of the electrolyte flow, and increase the attachment of new ecological oxygen on the surface of the carbon fiber; the container for storing the electrolyte is a box body for replenishing the electrolyte. When the electrolyte enters the frame, the rotating plate buffers the flow of the electrolyte, which can reduce the flow rate of the electrolyte into the box body, thereby avoiding the electrolyte from flowing when the electrolyte is added to the electrolyte; the third baffle arranged on the slow flow plate increases the buffering effect on the flow of the electrolyte around the carbon fiber; the carbon fiber bypasses the first roller and passes through the wiping block to be connected to the second roller on the left side, the wiping block contacts the carbon fiber, and the wiping block scrapes off the excess electrolyte on the carbon fiber to prevent the residual electrolyte on the carbon fiber from affecting the subsequent processing; the pipeline is connected to the gas treatment equipment, and the exhaust fan extracts the harmful gas generated when the carbon fiber is oxidized, and the harmful gas is discharged into the gas treatment equipment through the pipeline to avoid the harmful gas from polluting the environment and affecting the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the baffle mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the flow blocking mechanism of the present invention.

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the slow flow mechanism of the present invention.

[0021] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the slow flow mechanism of the present invention.

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the buffer mechanism of the present invention.

[0023] Fig. 9 It is a partial three-dimensional structural schematic diagram of the buffer mechanism of the present invention.

[0024] Fig.10 It is a schematic diagram of the three-dimensional structure of the wiping mechanism of the present invention.

[0025] Fig.11It is a three-dimensional structural schematic diagram of the harmful gas treatment mechanism of the present invention.

[0026] The names and serial numbers of the parts in the figure are: 1. Box body, 2. Cathode plate, 3. Slow flow plate, 4. First roller, 41. Support frame, 5. Second roller, 6. Motor, 7. Baffle mechanism, 71. First bracket, 72. Cylinder, 73. Slide rod, 74. First baffle, 8. Baffle mechanism, 81. Second baffle, 82. Fixed plate, 83. Telescopic plate, 84. Push column, 85. Wedge block, 9. Slow flow mechanism, 91. Second bracket, 92. Frame, 93. Hose, 94. Rotating plate, 10. Buffer mechanism, 101. Third bracket, 102. Third baffle, 11. Wiping mechanism, 111. Sliding sleeve, 112. Wiping block, 12. Harmful gas treatment mechanism, 121. Fourth bracket, 122. Exhaust fan, 123. Pipeline. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] A carbon fiber surface treatment device, referring to Figure 1-Figure 5 , including a box body 1, a cathode plate 2, a slow flow plate 3, a conveying component, a baffle mechanism 7 and a baffle mechanism 8, a cathode plate 2 is installed at the lower part of the box body 1, a slow flow plate 3 is connected inside the box body 1, the slow flow plate 3 is located above the cathode plate 2, a conveying component is provided at the upper part of the box body 1, a baffle mechanism 7 is provided at the right part of the box body 1, the baffle mechanism 7 is used to block the current generated by the cathode plate 2 and the electrolyte from continuously oxidizing the carbon fiber whose surface has been treated, the baffle mechanism 7 includes a moving component and a first baffle 74, a moving component is provided in the middle of the right side of the baffle mechanism 7, four first baffles 74 are evenly spaced and slidably connected in the middle of the slow flow plate 3, the four first baffles 74 are arranged horizontally, the rear of the first baffle 74 is connected to the moving component, the middle of the slow flow plate 3 There are four openings evenly spaced apart and arranged horizontally. The first baffle 74 will move to the left to close the opening of the slow flow plate 3. A baffle mechanism 8 is provided inside the box body 1. The baffle mechanism 8 is used to buffer the flow of electrolyte around the carbon fiber. The baffle mechanism 8 includes a second baffle 81, a fixed plate 82, a telescopic plate 83 and a loosening assembly. The second baffles 81 are connected to the left and right sides of the upper inner part of the box body 1, and the fixed plates 82 are connected to the left and right sides of the top of the slow flow plate 3. The two fixed plates 82 are respectively located directly below the two second baffles 81, and the telescopic plates 83 are slidably connected between the fixed plates 82. Springs are connected between the fixed plates 82 and the bottom of the telescopic plates 83, and a loosening assembly is provided between the baffle mechanism 7 and the baffle mechanism 8.

[0030] Reference Figure 1-Figure 3The conveying assembly includes a first roller 4, a support frame 41, a second roller 5 and a motor 6. The first rollers 4 are rotatably connected to the left and right sides of the inside of the box body 1. The two first rollers 4 are located above the slow flow plate 3. The left and right sides of the upper part of the box body 1 are connected to the support frame 41. The upper part of the support frame 41 is rotatably connected to the second roller 5. The motor 6 is installed on the upper right side of the rear wall of the box body 1, and the output shaft of the motor 6 is connected to the rear end of the second roller 5 on the right side through a coupling.

[0031] Reference Figure 4 The moving assembly includes a first bracket 71, a cylinder 72 and a sliding rod 73. The first bracket 71 is connected to the middle right side of the box body 1, and the cylinder 72 is installed on the right side of the first bracket 71. The sliding rod 73 is slidably connected to the middle right side of the box body 1. The right end of the sliding rod 73 is connected to the telescopic rod of the cylinder 72, and the rear of the first baffle 74 is connected to the sliding rod 73.

[0032] Reference Figure 5 The release assembly includes a push column 84 and a wedge block 85. The left end of the slide rod 73 is connected to the push column 84, and the rear side of the left wall of the telescopic plate 83 is connected to the wedge block 85. The upper part of the push column 84 is stuck on the wedge block 85.

[0033] When in use, the carbon fiber is first wound around the second roller 5 on the right, and then the carbon fiber is stretched to pass around the first roller 4 and connected to the second roller 5 on the left, and then an appropriate amount of electrolyte is added into the box body 1, so that the electrolyte covers the carbon fiber located at the lower side of the first roller 4, and the new ecological oxygen generated by the reaction of the surface of the carbon fiber located at the lower side of the first roller 4 with the electrolyte undergoes an oxidation-reduction reaction to complete the surface modification. After the surface treatment of the carbon fiber located at the lower side of the first roller 4 is completed, the cylinder 72 is started, and the telescopic rod of the control cylinder 72 is extended to drive the sliding rod 73 to move to the left, and the sliding rod 73 drives the first baffle plate 74 to move left to close the opening of the slow flow plate 3, so that the slow flow plate 3 and the first baffle plate 74 block the current generated by the cathode plate 2 and the electrolyte from continuously oxidizing the surface-treated carbon fiber. In this way, the surface-treated carbon fiber can be prevented from being continuously oxidized in time. In the initial state, the spring connected between the fixed plate 82 and the telescopic plate 83 is compressed, and the sliding rod 73 moves to the left to drive the push rod 73 to move ... The movable column 84 moves to the left and separates from the wedge block 85, and then drives the telescopic plate 83 to move upward under the action of the spring connected between the fixed plate 82 and the telescopic plate 83, then starts the motor 6, and the output shaft of the motor 6 rotates to drive the second roller 5 on the right to rotate, thereby retracting the carbon fiber after the surface treatment, and then turns off the motor 6, and the second baffle plate 81, the fixed plate 82 and the telescopic plate 83 can achieve a buffering effect on the flow of electrolyte around the carbon fiber. In this way, the instability of the electrolyte flow can be reduced during the process of the carbon fiber being pulled and the first roller 4 rotating, and the adhesion of new ecological oxygen on the surface of the carbon fiber can be increased. Then, the cylinder 72 is started, and the telescopic rod of the control cylinder 72 is controlled to contract to drive the sliding rod 73, the first baffle plate 74 and the pushing column 84 to move rightward and reset, and the pushing column 84 contacts with the wedge block 85, and then squeezes the wedge block 85 downward, and the wedge block 85 drives the telescopic plate 83 to move downward and reset, and the spring connected between the fixed plate 82 and the telescopic plate 83 is compressed.

[0034] Example 2

[0035] Based on Example 1, Figure 1 , Figure 3 , Figure 6 and Figure 7 , also includes a slow flow mechanism 9, the slow flow mechanism 9 includes a second bracket 91, a frame 92, a hose 93 and a rotating plate 94, the second bracket 91 is connected to the upper left side of the box body 1, the frame 92 is installed at the lower part of the second bracket 91, the right side of the frame 92 is connected to the box body 1, the left side of the frame 92 is connected to the hose 93, the hose 93 is connected to the container for storing electrolyte, the frame 92 is rotatably connected to the rotating plate 94, the rotating plate 94 is used to reduce the flow rate of the electrolyte flowing into the box body 1.

[0036] The hose 93 is connected to the container for storing electrolyte, and the container for storing electrolyte adds electrolyte to the box 1 through the hose 93. When the electrolyte passes through the rotating plate 94, the rotating plate 94 buffers the electrolyte, which can reduce the flow rate of the electrolyte flowing into the box 1, thereby preventing the electrolyte from flowing when the electrolyte is added to the electrolyte.

[0037] Reference Figure 1 , Figure 3 , Figure 8 and Fig. 9 , also includes a buffer mechanism 10, the buffer mechanism 10 includes a third bracket 101 and a third baffle 102, the third brackets 101 are evenly spaced and connected to the front and rear sides of the middle of the slow flow plate 3, and the third brackets 101 are connected to the third baffles 102, and the third baffles 102 are used to buffer the flow of electrolyte around the carbon fiber.

[0038] The third baffle 102 disposed on the slow flow plate 3 increases the buffering effect on the flow of the electrolyte around the carbon fibers.

[0039] Reference Figure 1 , Figure 3 and Fig.10 , also includes a wiping mechanism 11, the wiping mechanism 11 includes a sliding sleeve 111 and a wiping block 112, two sliding sleeves 111 are connected to the upper right side of the box body 1, and the inner sides of the sliding sleeves 111 are slidably connected with wiping blocks 112, and the wiping blocks 112 are used to scrape off excess electrolyte on the carbon fiber, and the two wiping blocks 112 are in contact with each other.

[0040] The carbon fiber bypasses the first roller 4 and passes through the wiping block 112 to connect with the second roller 5 on the left. The wiping block 112 contacts the carbon fiber. When the second roller 5 on the right rotates to retract the carbon fiber after surface treatment, the wiping block 112 wipes the carbon fiber, thereby scraping off excess electrolyte on the carbon fiber to prevent excessive residual electrolyte on the carbon fiber from affecting subsequent processing.

[0041] Reference Figure 1 , Figure 3 and Fig.11 , also includes a harmful gas treatment mechanism 12, the harmful gas treatment mechanism 12 includes a fourth bracket 121, an exhaust fan 122 and a pipeline 123, two fourth brackets 121 are connected to the upper and middle parts of the rear wall of the box body 1, the exhaust fan 122 is installed between the upper parts of the fourth brackets 121, the top of the exhaust fan 122 is connected to the pipeline 123, the lower part of the pipeline 123 is connected to the box body 1, and the pipeline 123 is connected to the gas treatment equipment.

[0042] Connect the pipeline 123 to the gas treatment equipment. When treating the surface of the carbon fiber, start the exhaust fan 122. The exhaust fan 122 extracts the harmful gas generated during the oxidation of the carbon fiber and discharges the harmful gas into the gas treatment equipment through the pipeline 123. In this way, it is prevented that the harmful gas pollutes the environment and affects the health of the workers. After the surface treatment of the carbon fiber is completed, turn off the exhaust fan 122.

[0043] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A carbon fiber surface treatment device, comprising a box (1) and a cathode plate (2), wherein the cathode plate (2) is installed at the lower part of the box (1), characterized in that: The invention also comprises a slow flow plate (3), a conveying assembly, a baffle mechanism (7) and a baffle mechanism (8). The box body (1) is connected with the slow flow plate (3) inside. The slow flow plate (3) is located above the cathode plate (2). The upper part of the box body (1) is provided with a conveying assembly. The right part of the box body (1) is provided with a baffle mechanism (7) for preventing the current generated by the cathode plate (2) and the electrolyte from continuously oxidizing the carbon fiber whose surface has been treated. The baffle mechanism (7) comprises a moving assembly and a first baffle (74). The middle part of the right side of the baffle mechanism (7) is provided with a moving assembly. The middle part of the slow flow plate (3) is evenly spaced and slidably connected with the first baffle (74). The rear part of the first baffle (74) is connected to the moving assembly. The middle part of the slow flow plate (3) is evenly spaced with openings. The moving assembly drives the first baffle (74) to move leftward to close the opening of the slow flow plate (3), thereby preventing the current generated by the cathode plate (2) and the electrolyte from continuously oxidizing the carbon fiber whose surface has been treated. A flow blocking mechanism (8) for buffering the flow of electrolyte around the carbon fiber is provided inside the box body (1). The flow blocking mechanism (8) comprises a second baffle (81), a fixed plate (82), a telescopic plate (83) and a loosening assembly. The second baffle (81) is connected to both left and right sides of the upper part of the box body (1). The fixed plates (82) are connected to both left and right sides of the top of the slow flow plate (3). The fixed plates (82) are respectively located directly below the second baffle (81). The telescopic plates (83) are slidably connected between the fixed plates (82). Springs are connected between the fixed plates (82) and the bottom of the telescopic plates (83). A loosening assembly is provided between the baffle mechanism (7) and the flow blocking mechanism (8). The moving assembly drives the loosening assembly to loosen the restriction on the telescopic plate (83), and the telescopic plate (83) moves upward. The second baffle (81), the fixed plate (82) and the telescopic plate (83) can buffer the flow of electrolyte around the carbon fiber. The conveying assembly comprises a first roller (4), a support frame (41), a second roller (5) and a motor (6); the first roller (4) is rotatably connected to both left and right sides of the box body (1); the first roller (4) is located above the slow flow plate (3); the left and right sides of the upper part of the box body (1) are connected to the support frame (41); the upper part of the support frame (41) is rotatably connected to the second roller (5); the motor (6) is installed on the upper right side of the rear wall of the box body (1); the output shaft of the motor (6) is connected to the rear end of the second roller (5) on the right side through a coupling; The moving assembly comprises a first bracket (71), a cylinder (72) and a sliding rod (73); the first bracket (71) is connected to the middle part of the right side of the box body (1); the cylinder (72) is installed on the right part of the first bracket (71); the sliding rod (73) is slidably connected to the middle part of the right side of the box body (1); the right end of the sliding rod (73) is connected to the telescopic rod of the cylinder (72); the rear part of the first baffle (74) is connected to the sliding rod (73); the cylinder (72) drives the sliding rod (73) to move leftward; the sliding rod (73) drives the first baffle (74) to move leftward to close the opening of the slow flow plate (3); The release assembly comprises a push column (84) and a wedge block (85), the left end of the slide bar (73) is connected with the push column (84), the rear side of the left wall of the telescopic plate (83) is connected with the wedge block (85), the upper part of the push column (84) is clamped on the wedge block (85), the slide bar (73) drives the push column (84) to move leftward and separate from the wedge block (85), thereby releasing the restriction on the telescopic plate (83).

2. A carbon fiber surface treatment device according to claim 1, characterized in that: The invention also includes a slow flow mechanism (9) for adding electrolyte to the electrolyte solution. The slow flow mechanism (9) includes a second bracket (91), a frame (92) and a hose (93). The upper left side of the box (1) is connected to the second bracket (91). The lower part of the second bracket (91) is equipped with a frame (92). The right side of the frame (92) is connected to the box (1). The left side of the frame (92) is connected to a hose (93). The hose (93) is connected to a container for storing electrolyte. The container for storing electrolyte replenishes the box (1) with electrolyte through the hose (93) and the frame (92).

3. A carbon fiber surface treatment device as claimed in claim 2, characterized in that: It also includes a rotating plate (94), which is rotatably connected inside the frame (92) and is used to reduce the flow rate of the electrolyte flowing into the box (1).

4. A carbon fiber surface treatment device as claimed in claim 1, characterized in that: The invention also comprises a buffer mechanism (10) for buffering the flow of electrolyte around the carbon fiber, the buffer mechanism (10) comprising a third bracket (101) and a third baffle (102), the third brackets (101) are evenly spacedly connected to the front and rear sides of the middle of the slow flow plate (3), and the third brackets (101) are connected to the third baffles (102) for buffering the flow of electrolyte around the carbon fiber.

5. The carbon fiber surface treatment device according to claim 1, characterized in that: The invention also comprises a wiping mechanism (11) for scraping off excess electrolyte on the carbon fiber, the wiping mechanism (11) comprising a sliding sleeve (111) and a wiping block (112), the sliding sleeve (111) being connected to the upper right side of the interior of the box body (1), the wiping blocks (112) for scraping off excess electrolyte on the carbon fiber being slidably connected to the inner side of the sliding sleeve (111), and the wiping blocks (112) being in contact with each other.

6. The carbon fiber surface treatment device according to claim 1, characterized in that: The invention also comprises a harmful gas treatment mechanism (12) for collecting harmful gases. The harmful gas treatment mechanism (12) comprises a fourth bracket (121), an exhaust fan (122) and a pipeline (123). The fourth bracket (121) is connected to the middle and upper part of the rear wall of the box body (1). The exhaust fan (122) is installed between the upper part of the fourth bracket (121). The top of the exhaust fan (122) is connected to the pipeline (123). The lower part of the pipeline (123) is connected to the box body (1). The pipeline (123) is connected to the gas treatment device. The exhaust fan (122) extracts harmful gases generated when the carbon fibers are oxidized and discharges the harmful gases into the gas treatment device through the pipeline (123).

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