A high-efficiency water washing device for carbon fiber

Abstract

This invention provides a high-efficiency carbon fiber washing device, belonging to the technical field of carbon fiber washing devices. The invention includes a washing tank with an arc-shaped receiving cavity at its upper end. A conveying unit and a floating unit are respectively arranged on both sides of the washing tank, and a discharge unit is located at the bottom. A winding unit is located inside the washing tank. The fibers to be washed can pass through the floating unit, wind around the surface of the winding unit, and be pulled by the conveying unit. The discharge unit can discharge the washing waste. This invention achieves self-circulation of the washing liquid within the washing tank through an internal circulating rinsing structure. Combined with a filter screen on the mesh cylinder structure, impurities in the washing liquid are filtered in real time. Simultaneously, the auger structure of the bottom discharge unit can continuously discharge settled washing waste online, effectively extending the service life of the washing liquid and significantly reducing the frequency of washing liquid replacement and wastewater discharge.

Description

Technical Field

[0001] This invention relates to the field of carbon fiber washing equipment technology, and in particular to a high-efficiency carbon fiber washing equipment. Background Technology

[0002] Polyacrylonitrile-based carbon fiber, as a high-performance fiber material, is a core basic material in key fields such as aerospace, high-end equipment, and new energy vehicles. The washing process after carbonization is a crucial link in the entire carbon fiber production process to ensure product performance. The core function of the washing process is to remove solid impurities such as carbon oxides and metal ions adhering to the surface of carbon fiber after carbonization, as well as residual antioxidants, catalysts, and other additives. At the same time, it optimizes the surface condition of carbon fiber and reduces surface microcrack defects. The washing effect directly determines the mechanical properties of carbon fiber, the interfacial bonding performance with the resin matrix, and the service stability and service life of downstream composite material products.

[0003] Currently, in large-scale production within the industry, the washing process after carbonization of carbon fiber mostly employs multi-stage tank immersion washing and continuous constant-flow water rinsing processes. To ensure the cleanliness of the washing, multiple sets of washing tanks connected in series are usually required, and continuous washing operations are achieved through the continuous introduction of fresh washing liquid and tank overflow. This type of washing process has many unresolved pain points in practical industrial applications. First, the utilization rate of the washing liquid is extremely low, resulting in significant water waste and enormous pressure on wastewater treatment. In existing constant-flow processes, the washing liquid overflows and is discharged after only one pass through the tank, making it impossible to achieve recycling and reuse. Even if some processes incorporate a simple reuse structure with gradient overflow between tanks, online purification and self-circulation within a single tank are still impossible, leading to persistently high water consumption during production. Simultaneously, large amounts of wastewater containing impurities and additives are directly discharged, causing serious environmental pollution and significantly increasing wastewater treatment costs for enterprises, which does not meet the requirements of green and low-carbon industrial development. Existing washing equipment cannot achieve online real-time removal of impurities, resulting in poor washing effect stability and high frequency of cleaning fluid replacement. During continuous washing operations, solid impurities and additive residues detached from the carbon fiber surface remain suspended in the cleaning fluid or settle at the bottom of the tank under gravity. Existing washing equipment lacks effective online filtration and continuous waste discharge structures, making it impossible to remove contaminants from the washing fluid in real time. This causes the cleanliness of the washing fluid to decline rapidly with extended production time, leading to a continuous decrease in washing effect. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency water washing device for carbon fibers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency carbon fiber washing device, characterized in that it includes a washing tank, the upper part of which has an arc-shaped receiving cavity, a floating unit on the inlet side and a conveying unit on the outlet side respectively arranged on both sides of the washing tank along the carbon fiber conveying direction, a discharge unit arranged at the bottom of the washing tank, and a winding unit arranged inside the receiving cavity; after the washed carbon fiber can pass through the floating unit into the washing tank and wind around the outer wall of the winding unit, it is pulled out by the conveying unit; the discharge unit is used to discharge the washing waste generated during the washing process.

[0006] Preferably, the washing tank is an ultrasonic cleaning tank, which contains cleaning fluid. The carbon fiber to be washed, which is wound around the outer wall of the winding unit, is completely immersed in the cleaning fluid for ultrasonic washing.

[0007] Preferably, the winding unit includes a turntable and a connecting plate arranged coaxially. Multiple fixing strips are spaced circumferentially between the turntable and the connecting plate. Each fixing strip has a filter screen attached to its inner side. The multiple fixing strips and the multiple filter screens together form a mesh cylinder structure with open ends. The turntable and the connecting plate are respectively sealed and fixed to the axial ends of the mesh cylinder structure by bolts. A rotating cylinder is fixedly inserted into the center of the connecting plate. The rotating cylinder is rotatably mounted on the side wall of the receiving cavity via bearings, allowing the mesh cylinder structure to rotate around its own axis within the receiving cavity. A mounting base is fixed to the upper surface of the washing tank. A shaft is rotatably inserted through the mounting base. A drive gear is coaxially fixed to one end of the shaft facing the connecting plate. The outer circumferential wall of the connecting plate has a toothed groove that meshes with the drive gear. An external drive motor can drive the shaft to rotate. Through the meshing transmission between the drive gear and the toothed groove, the mesh cylinder structure is driven to rotate around its own axis.

[0008] Preferably, each of the fixing strips has an elastic rope fixedly connected to its outer wall, and a striking ball is fixed to the free end of the elastic rope; when the net cylinder structure rotates around its own axis, the striking ball moves in a circular motion synchronously with the fixing strip, and can periodically hit the inner wall of the receiving cavity to generate vibration, so as to avoid cleaning debris adhering to the net cylinder structure and the inner wall of the washing tank.

[0009] Preferably, a rotating shaft is rotatably installed through the side wall of the washing tank. The rotating shaft is coaxially installed inside the rotating cylinder. The portion of the rotating shaft located in the inner cavity of the mesh cylinder structure has multiple agitating blades evenly distributed along the axial direction. The end of the rotating shaft extending out of the washing tank can be driven to rotate by a drive motor. When the rotating shaft rotates, it drives the agitating blades to rotate synchronously in the inner cavity of the mesh cylinder structure, which can push the cleaning liquid in the inner cavity of the mesh cylinder structure outward through the filter screen, forming a radial rinse on the carbon fibers wrapped around the outer wall of the mesh cylinder structure.

[0010] Preferably, a conical fan blade is coaxially fixed at the end of the rotating shaft located within the inner cavity of the mesh cylinder structure, with the large-diameter end of the conical fan blade facing the inner cavity of the mesh cylinder structure; when the rotating shaft rotates, it drives the conical fan blade to rotate synchronously, which can draw the cleaning liquid outside the mesh cylinder structure into the inner cavity of the mesh cylinder structure, forming a circulating flushing channel for the cleaning liquid in conjunction with the agitating fan blade.

[0011] Preferably, the discharge unit includes an arc-shaped cover, which is detachably fixed to the bottom of the washing tank. The bottom of the washing tank has a discharge port communicating with the inner cavity of the arc-shaped cover. An auger is rotatably installed in the inner cavity of the arc-shaped cover. The central shaft of the auger rotates through the end of the arc-shaped cover, and the end can be driven to rotate by a drive motor. The end side wall of the arc-shaped cover has a discharge port. The debris generated during washing falls into the arc-shaped cover through the discharge port. When the auger rotates, it can transport the collected debris axially to the discharge port for discharge.

[0012] Preferably, a cover is rotatably installed on the outer wall of the arc-shaped cover corresponding to the position of the discharge port. Multiple locking teeth are evenly distributed on the outer peripheral wall of the cover. A flexible hook is rotatably installed on the outer wall of the arc-shaped cover corresponding to the side of the discharge port. When the cover is closed on the discharge port, the sealing gasket on the inner side of the cover is compressed and deformed to seal the discharge port. The hook can be hooked on the locking teeth to lock and fix the cover.

[0013] Preferably, the conveying unit includes a fixed frame, which is detachably fixed to the outlet side wall of the washing tank. A conveying roller is rotatably installed inside the fixed frame, and the conveying roller can be driven to rotate by a drive motor. A pressure roller is also slidably installed inside the fixed frame. The axis of the pressure roller is parallel to the axis of the conveying roller, and the pressure roller can slide closer to or further away from the conveying roller in the horizontal direction. Carbon fibers can pass through the gap between the pressure roller and the conveying roller. A fixed plate is fixed to the side wall of the fixed frame, and a pressure frame is slidably inserted through the fixed plate in the horizontal direction. A No. 1 spring is fixed between the pressure frame and the fixed plate. The elastic force of the No. 1 spring can drive the pressure frame to push the pressure roller in the horizontal direction, so that the pressure roller presses against the outer wall of the conveying roller, forming a clamping and pulling effect on the carbon fibers passing through the gap.

[0014] Preferably, the floating unit includes an assembly frame, with a connecting frame fixed to the side wall of the assembly frame. The assembly frame is detachably fixed to the inlet side wall of the washing tank via the connecting frame. The assembly frame has a T-shaped structure. Two winding rollers located on the same horizontal plane are rotatably installed inside the assembly frame, and the axes of the two winding rollers are parallel to each other. A sliding groove extending vertically is opened in the vertical section of the assembly frame. A floating roller is slidably installed in the sliding groove, and the axis of the floating roller is parallel to the axis of the winding roller. A sliding block is rotatably connected to the end of the floating roller. A guide rod extending vertically upward is fixed to the upper end face of the sliding block. A track seat is fixed to the top of the assembly frame. The guide rod slides through the track seat. A second spring is sleeved on the outside of the guide rod. The two ends of the second spring are fixedly connected to the lower end face of the track seat and the upper end face of the sliding block, respectively. The elastic force of the second spring can drive the sliding block to slide downward along the sliding groove, causing the floating roller to move away from the winding roller, thus adaptively adjusting the tension of the carbon fiber passing between the winding roller and the floating roller.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the mesh cylinder structure design of the winding unit allows the carbon fiber bundle to wind around the outer wall of the mesh cylinder and rotate synchronously with it. This significantly extends the washing path of the carbon fiber in the cleaning solution, ensuring that all parts of the bundle are in full and uniform contact with the cleaning solution. Combined with the ultrasonic cleaning effect of the washing tank, the ultrasonic cavitation effect efficiently removes solid impurities and residual additives from the micropores and crevices on the surface of the carbon fiber, solving the problem of poor removal of internal impurities by traditional immersion washing. The rotating shaft drives the agitator blades and conical blades to operate synchronously, forming a closed-loop circulation rinsing channel where the external cleaning solution is drawn into the inner cavity of the mesh cylinder, and the internal cleaning solution is radially pushed out to rinse the bundle. This creates a continuous radial scouring effect on the carbon fiber bundle, further enhancing the removal effect on both the surface and internal impurities of the bundle.

[0016] 2. Through the adaptive tension adjustment structure of the floating unit on the inlet side, the floating roller driven by the second spring adaptively adjusts its position according to the change of fiber bundle tension, ensuring that the carbon fiber bundle maintains a stable tension throughout the washing process. This prevents the fiber bundle from loosening and tangling, and also prevents excessive tension from causing tensile damage or breakage. The conveying unit on the outlet side forms an elastic clamping structure with the pressure frame and pressure roller driven by the first spring, which, together with the conveying roller, achieves uniform and stable pulling of the carbon fiber bundle, avoiding surface mechanical damage caused by friction and impact during the bundle conveying process.

[0017] 3. Through the internal circulation flushing structure, the cleaning fluid is self-circulated in the washing tank. Combined with the filter screen on the mesh cylinder structure, impurities in the cleaning fluid are filtered in real time. At the same time, the auger structure of the bottom discharge unit can discharge the settled cleaning waste online and continuously, which effectively extends the service life of the cleaning fluid and greatly reduces the frequency of cleaning fluid replacement and wastewater discharge.

[0018] 4. Through the coordinated operation of the floating unit, winding unit and conveying unit, the continuous feeding, washing and discharging of carbon fiber tow is realized. The bottom discharge unit can discharge impurities in real time without interrupting the washing operation, avoiding the problem of traditional washing equipment having to stop to clean the tank sediment. Attached Figure Description

[0019] Figure 1 This invention provides a three-dimensional structural schematic diagram of a high-efficiency carbon fiber washing device. Figure 2 This invention provides another structural schematic diagram of a high-efficiency carbon fiber washing device. Figure 3 This is a partial schematic diagram of the winding unit in a high-efficiency carbon fiber washing device proposed in this invention; Figure 4 This invention proposes a high-efficiency water washing device for carbon fiber. Figure 3 Partial disassembly diagram; Figure 5 This invention provides a partial schematic diagram of the pressure frame in a high-efficiency carbon fiber washing device; Figure 6 This invention provides a partial schematic diagram of a floating unit in a high-efficiency carbon fiber washing device. Figure 7 This is a partial schematic diagram of the discharge unit in a high-efficiency carbon fiber washing device proposed in this invention.

[0020] Legend: 1. Washing tank; 2. Mounting base; 3. Drive gear; 4. Receiving cavity; 5. Winding unit; 51. Turntable; 52. Conical fan blade; 53. Fixing strip; 54. Filter screen; 55. Elastic rope; 56. Striking ball; 57. Rotating shaft; 58. Agitating fan blade; 59. Rotating cylinder; 510. Connecting plate; 6. Conveying unit; 61. Conveying roller; 62. Fixing frame; 63. Pressure roller; 64. Spring No. 1; 65. Fixing plate; 66. Pressure frame; 7. Floating unit; 71. Winding roller; 72. Assembly frame; 73. Connecting frame; 74. Sliding groove; 75. Floating roller; 76. Sliding block; 77. Guide rod; 78. Spring No. 2; 79. Track seat; 8. Discharge unit; 81. Arc-shaped cover; 82. Screwdriver; 83. Discharge port; 84. Cover; 85. Clamping tooth; 86. Hook. Detailed Implementation

[0021] like Figure 1-7As shown, the present invention provides a high-efficiency carbon fiber washing device, including a washing tank 1. The upper part of the washing tank 1 has an arc-shaped receiving cavity 4 that communicates with the internal cavity. A floating unit 7 on the inlet side and a conveying unit 6 on the outlet side are fixed on both sides of the washing tank 1 along the carbon fiber conveying direction, respectively. A discharge unit 8 is fixed at the bottom of the washing tank 1. A winding unit 5 is arranged inside the washing tank 1 at the position corresponding to the receiving cavity 4. The carbon fiber bundle to be washed can pass through the floating unit 7 into the internal cavity of the washing tank 1. The carbon fiber bundle can be tightly wound on the outer surface of the winding unit 5. The outlet end of the carbon fiber bundle can be stably pulled by the conveying unit 6 to complete continuous conveying. The discharge unit 8 can collect and discharge the cleaning waste that falls off and settles from the carbon fiber bundle during the washing process. The washing tank 1 adopts an ultrasonic cleaning pool structure. The internal cavity of the washing tank 1 is filled with cleaning liquid for washing carbon fiber. The carbon fiber bundle to be washed, which is wound on the outer surface of the winding unit 5, can be completely immersed in the cleaning liquid. The washing tank 1 can perform ultrasonic washing on the carbon fiber bundle through ultrasonic vibration. The winding unit 5 includes a turntable 51 and a connecting plate 510 arranged coaxially opposite each other. Multiple long strip-shaped fixing bars 53 are fixedly fixed between the turntable 51 and the connecting plate 510 along the circumferential direction. Each fixing bar 53 has a snap-fit ​​groove on its inner sidewall that is close to each other. A filter screen 54 is snapped and fixed inside the snap-fit ​​groove. Multiple fixing bars 53 and multiple filter screens 54 enclose each other to form a mesh cylinder structure with open ends. The turntable 51 and the connecting plate 510 are respectively sealed and fixed to the axial ends of the mesh cylinder structure by fastening bolts. A rotating cylinder 59 is fixedly inserted at the center of the connecting plate 510. The rotating cylinder 59 is rotatably installed on the side wall of the corresponding receiving cavity 4 of the washing tank 1 through bearings, so that the mesh cylinder structure can rotate freely around its own axis inside the receiving cavity 4. A mounting base 2 is fixed to the upper end of the washing tank 1. A horizontally arranged shaft is rotatably inserted through the mounting base 2 via a bearing. A drive gear 3 is coaxially fixed to one end of the shaft facing the connecting plate 510. The outer peripheral wall of the connecting plate 510 has continuous toothed grooves. The outer teeth of the drive gear 3 can stably mesh with the toothed grooves on the outer periphery of the connecting plate 510. An external drive motor can drive the shaft to rotate. Through the meshing transmission between the drive gear 3 and the toothed grooves, the connecting plate 510 is driven to rotate, thereby driving the entire mesh cylinder structure to rotate around its own axis inside the receiving cavity 4. Each fixing bar 53 has an elastic rope 55 fixedly connected to its outer side wall. A solid striking ball 56 is fixed to the free end of the elastic rope 55 away from the fixing bar 53. When the net cylinder structure rotates around its own axis, the striking ball 56 can make a circular motion synchronously with the fixing bar 53. Under the action of centrifugal force and elastic force of elastic rope 55, it periodically hits the inner wall of the receiving cavity 4 to generate vibration. The vibration can be transmitted to various parts of the washing tank 1 and the net cylinder structure, preventing the debris generated by washing from adhering to the inner wall of the net cylinder structure and the washing tank 1.A rotating shaft 57 is rotatably mounted on the side wall of the washing tank 1 corresponding to the rotating cylinder 59 via a bearing. The rotating shaft 57 is coaxially mounted inside the rotating cylinder 59. Multiple agitating blades 58 are evenly fixed axially on the part of the rotating shaft 57 located inside the mesh cylinder structure. The end of the rotating shaft 57 extending outside the washing tank 1 can be driven to rotate by an external drive motor. When the rotating shaft 57 rotates, it can drive the agitating blades 58 to rotate synchronously inside the mesh cylinder structure. The rotating agitating blades 58 can push the cleaning liquid inside the mesh cylinder structure outward through the filter screen 54, forming a radial continuous rinsing of the carbon fiber bundles wrapped on the outer surface of the mesh cylinder structure. A conical fan blade 52 is coaxially fixed at the end of the rotating shaft 57 located inside the mesh cylinder structure. The large-diameter end of the conical fan blade 52 faces the inside of the mesh cylinder structure. When the rotating shaft 57 rotates, it can drive the conical fan blade 52 to rotate synchronously. The rotating conical fan blade 52 can continuously draw the cleaning liquid outside the mesh cylinder structure into the inside of the mesh cylinder structure, forming a circulating flushing channel for the cleaning liquid in conjunction with the agitating fan blade 58. The conveying unit 6 includes a fixed frame 62, which is detachably fixed to the outlet side wall of the washing tank 1 by fastening bolts. Inside the fixed frame 62, a conveying roller 61 is rotatably mounted via bearings. The conveying roller 61 can be driven to rotate by an external drive motor. Inside the fixed frame 62, a pressure roller 63 is also slidably mounted. The axis of the pressure roller 63 is parallel to the axis of the conveying roller 61. The pressure roller 63 can slide closer to or further away from the conveying roller 61 in the horizontal direction. The carbon fiber bundle can pass through the gap between the pressure roller 63 and the conveying roller 61. A fixed plate 65 is fixed to one side wall of the fixed frame 62. A pressure frame 66 is slidably mounted on the fixed plate 65 in the horizontal direction. A first spring 64 is fixed between the pressure frame 66 and the fixed plate 65. The elastic force of the first spring 64 can drive the pressure frame 66 to continuously push the pressure roller 63 in the horizontal direction, so that the pressure roller 63 is tightly pressed against the outer wall of the conveying roller 61, forming a stable clamping and pulling of the carbon fiber bundle passing through the gap.The floating unit 7 includes an assembly frame 72, with a connecting frame 73 fixed to its side wall. The assembly frame 72 is detachably fixed to the inlet side wall of the washing tank 1 via the connecting frame 73 and fastening bolts. The assembly frame 72 has a T-shaped structure. Inside the horizontal section of the assembly frame 72, two rotating rollers 71 located in the same horizontal plane are rotatably mounted via bearings. The axes of the two rotating rollers 71 are parallel to each other. The vertical section of the assembly frame 72 has a sliding groove 74 extending vertically. A floating roller 75 is slidably mounted inside the sliding groove 74. The axis of the floating roller 75 is parallel to the axis of the rotating roller 71. Both ends of the floating roller 75 are connected via... The bearing is rotatably connected to a sliding block 76. A vertically upward extending guide rod 77 is fixed to the upper end face of the sliding block 76. A track seat 79 is fixed to the top of the assembly frame 72. The guide rod 77 can slide through the inside of the track seat 79. A second spring 78 is sleeved on the outside of the guide rod 77. The two ends of the second spring 78 are fixedly connected to the lower end face of the track seat 79 and the upper end face of the sliding block 76, respectively. The elastic force of the second spring 78 can drive the sliding block 76 to slide downward along the sliding groove 74, thereby driving the floating roller 75 away from the winding roller 71 and adaptively adjusting the tension of the carbon fiber bundle passing between the winding roller 71 and the floating roller 75. The discharge unit 8 includes an arc-shaped cover 81, which is detachably and fixedly installed at the bottom of the washing tank 1 by fastening bolts. The bottom of the washing tank 1 has a discharge port that communicates with the inner cavity of the arc-shaped cover 81. An auger 82 is rotatably installed in the inner cavity of the arc-shaped cover 81 through a bearing. The central shaft of the auger 82 rotates through the end of the arc-shaped cover 81. One end of the central shaft of the auger 82 that extends outside the arc-shaped cover 81 can be driven to rotate by an external drive motor. A discharge port 83 is opened on the side wall of the end of the arc-shaped cover 81. The debris generated during washing can fall into the interior of the arc-shaped cover 81 through the discharge port. When the auger 82 rotates, it can axially transport the debris collected inside the arc-shaped cover 81 to the discharge port 83 for centralized discharge. A cover 84 is mounted on the outer wall of the arc-shaped cover 81 at the position corresponding to the discharge port 83 via a hinge. Multiple locking teeth 85 are evenly distributed on the outer peripheral wall of the cover 84. A hook 86 that can be elastically stretched is mounted on the outer wall of the arc-shaped cover 81 to the side corresponding to the discharge port 83. When the cover 84 is closed on the discharge port 83, the sealing gasket on the inner side of the cover 84 can be deformed under pressure to achieve a complete seal of the discharge port 83. The hook 86 can be hooked on the locking teeth 85 to lock and fix the cover 84.

[0022] Working principle: During the carbon fiber washing operation, the carbon fiber bundle to be washed first passes through the gap between the two winding rollers 71 and the floating roller 75 of the floating unit 7. The elastic force of the second spring 78 drives the floating roller 75 to adaptively adjust its position, so that the carbon fiber bundle always maintains a stable tension, avoiding loosening or breakage of the bundle. Then, the carbon fiber bundle enters the interior of the washing tank 1 and tightly wraps around the outer surface of the mesh cylinder structure of the winding unit 5, so that the bundle is completely immersed in the cleaning solution in the washing tank 1. The washing tank 1 performs basic ultrasonic washing of the carbon fiber bundle through ultrasonic vibration. At the same time, the external drive motor drives the mesh cylinder structure to rotate around its own axis through the drive gear 3, so that the carbon fiber bundle wrapped on the outer surface of the mesh cylinder structure can fully contact the cleaning solution, improving the uniformity of washing. While the mesh cylinder structure rotates, the striking ball 56 on the fixing bar 53 periodically hits the inner wall of the receiving cavity 4 under the action of centrifugal force and elastic rope 55, generating vibration, preventing the debris that falls off during washing from adhering to the inner wall of the mesh cylinder structure and the washing tank 1. To ensure a clean washing environment, an external drive motor simultaneously drives the rotating shaft 57 to rotate. The rotating shaft 57 drives the agitating fan blades 58 and the conical fan blades 52 to rotate synchronously. The conical fan blades 52 draw the cleaning liquid from the outside of the mesh cylinder structure into the inner cavity of the mesh cylinder structure. The agitating fan blades 58 push the cleaning liquid in the inner cavity outward through the filter screen 54, forming a circulating rinsing channel. This provides continuous radial rinsing to the carbon fiber bundles, further improving washing efficiency and cleanliness. The washed carbon fiber bundles are then pulled by the conveying unit 6 on the outlet side. The output is achieved by the first spring 64 in the conveying unit 6 driving the pressure frame 66 to push the pressure roller 63, so that the pressure roller 63 and the conveying roller 61 stably clamp the carbon fiber bundle, ensuring the stability and uniformity of the bundle conveying. During the washing process, the debris that falls off the carbon fiber bundle falls into the arc-shaped cover 81 through the discharge port at the bottom of the washing tank 1 under the action of gravity. The external drive motor drives the auger 82 to rotate, conveying the collected debris to the discharge port 83 for centralized discharge, ensuring the cleanliness of the cleaning solution in the washing tank 1 and extending the service life of the cleaning solution.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may utilize the disclosed technical content to make changes or modifications to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, still fall within the protection scope of the present invention. In the description of the present invention, 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. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood through specific circumstances.

Claims

1. A high-efficiency water washing device for carbon fiber, characterized in that: The washing tank (1) includes an arc-shaped receiving cavity (4) at the upper end of the washing tank (1), a conveying unit (6) and a floating unit (7) on both sides of the washing tank (1), a discharge unit (8) at the bottom of the washing tank (1), and a winding unit (5) inside the washing tank (1). The fibers to be washed can pass through the floating unit (7) and be wound around the surface of the winding unit (5) and pulled by the conveying unit (6). The discharge unit (8) can discharge the waste from the washing process.

2. The high-efficiency water washing device for carbon fiber according to claim 1, characterized in that: The washing tank (1) is an ultrasonic cleaning tank. The washing tank (1) contains cleaning liquid, in which the fibers to be cleaned are immersed in the cleaning liquid for ultrasonic cleaning.

3. The high-efficiency water washing device for carbon fiber according to claim 1, characterized in that: The winding unit (5) includes a turntable (51) and a connecting plate (510). Multiple fixing strips (53) are provided between the turntable (51) and the connecting plate (510). A filter screen (54) is engaged on the side of the fixing strips (53) that are close to each other. The multiple fixing strips (53) and the multiple filter screens (54) form a mesh cylinder structure. The turntable (51) and the connecting plate (510) are fixed to both sides of the mesh cylinder structure by means of bolts. A rotating cylinder (59) is fixedly inserted inside the connecting plate (510). The rotating cylinder (59) is rotatably installed inside the receiving cavity (4). The upper end of the washing tank (1) is fixedly connected to the mounting base (2). A shaft is rotatably installed inside the mounting base (2). A drive gear (3) is fixedly connected to the end of the shaft. The edge of the connecting plate (510) is provided with a toothed groove. The drive gear (3) can mesh with the toothed groove. An external drive motor can be used to drive the shaft so that the drive gear (3) drives the mesh cylinder structure to rotate inside the receiving cavity (4).

4. The high-efficiency water washing device for carbon fiber according to claim 3, characterized in that: An elastic rope (55) is fixedly connected to the surface of the fixing strip (53), and a striking ball (56) is fixedly connected to the end of the elastic rope (55). When the rotating net cylinder structure rotates inside the receiving cavity (4), the striking ball (56) can be used to strike the receiving cavity (4) to generate vibration and avoid the adhesion of debris.

5. The high-efficiency water washing device for carbon fiber according to claim 3, characterized in that: A rotating shaft (57) is rotatably inserted into the side of the washing tank (1). The rotating shaft (57) is inserted inside the rotating cylinder (59). Agitating fan blades (58) are uniformly fixedly connected to the surface of the rotating shaft (57). One end of the rotating shaft (57) located outside the washing tank (1) can be driven to rotate by a motor. During the rotation of the rotating shaft (57), the agitating fan blades (58) are driven to rotate so as to discharge the cleaning liquid in the mesh cylinder structure from the filter screen (54) and rinse the fiber filaments wrapped around the surface of the mesh cylinder structure.

6. The high-efficiency water washing device for carbon fiber according to claim 5, characterized in that: The surface of the rotating shaft (57) is fixedly connected with a conical fan blade (52). During the rotation of the rotating shaft (57), the conical fan blade (52) can be rotated to blow the cleaning liquid outside the mesh cylinder structure into the mesh cylinder structure to achieve the cleaning liquid circulation effect.

7. The high-efficiency water washing device for carbon fiber according to claim 1, characterized in that: The discharge unit (8) includes an arc-shaped cover (81), which is detachably installed at the bottom of the washing tank (1). The bottom of the washing tank (1) and the arc-shaped cover (81) are connected. An auger (82) is rotatably connected inside the arc-shaped cover (81). The central shaft of the auger (82) rotates through the arc-shaped cover (81). The end of the central shaft of the auger (82) located outside the arc-shaped cover (81) is driven to rotate by a motor. A discharge port (83) is opened on the surface of the arc-shaped cover (81). During the rotation of the auger (82), the debris under the action of gravity can be concentrated and discharged into the discharge port (83).

8. The high-efficiency water washing device for carbon fiber according to claim 7, characterized in that: The surface of the arc-shaped cover (81) is rotatably mounted with a cover (84) relative to the outlet (83). The surface of the cover (84) is evenly provided with teeth (85). The surface of the arc-shaped cover (81) is rotatably mounted with a hook (86). When the cover (84) is placed on the outlet (83), the cover (84) can squeeze the surface sealing gasket to deform and seal the outlet (83). The hook (86) hangs on the surface of the teeth (85) to fix the cover (84). The hook (86) can be elastically stretched.

9. The high-efficiency water washing device for carbon fiber according to claim 1, characterized in that: The conveying unit (6) includes a fixed frame (62), which is detachably and fixedly installed on the side of the washing tank (1). A conveying roller (61) is rotatably installed inside the fixed frame (62). The conveying roller (61) can be driven to rotate by a motor. A pressure roller (63) is slidably connected inside the fixed frame (62). The pressure roller (63) can slide and squeeze the conveying roller (61) in the horizontal direction. The fiber can pass through the pressure roller (63) and the conveying roller (61). A fixed plate (65) is fixedly connected to one side of the fixed frame (62). A pressure frame (66) is slidably connected to the surface of the fixed plate (65). The pressure frame (66) can slide in the horizontal direction. A first spring (64) is fixedly connected between the pressure frame (66) and the fixed plate (65). The first spring (64) can drive the pressure frame (66) to squeeze the pressure roller (63) and make the pressure roller (63) move closer to the conveying roller (61).

10. The high-efficiency water washing device for carbon fiber according to claim 1, characterized in that: The floating unit (7) includes an assembly frame (72), on the surface of which a connecting frame (73) is provided. The assembly frame (72) can be fixed to the surface of the washing tank (1) by means of the connecting frame (73). The assembly frame (72) has a T-shaped structure. Two rollers (71) located on the same horizontal plane are rotatably installed inside the assembly frame (72). A sliding groove (74) is opened on the surface of the assembly frame (72). A floating roller (75) is slidably connected inside the sliding groove (74). The floating roller (75) has... A sliding block (76) is rotatably connected to the port. A guide rod (77) is fixedly connected to the upper end of the sliding block (76). A track seat (79) is fixedly connected to the surface of the assembly frame (72). The guide rod (77) can slide through the track seat (79). A second spring (78) is sleeved on the surface of the guide rod (77). The two ends of the second spring (78) are fixed to the track seat (79) and the sliding block (76) respectively. The elastic force of the second spring (78) can be used to expand and drive the floating roller (75) away from the winding roller (71).

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