A large tow carbon fiber sizing device

Abstract

The utility model discloses a big tow carbon fibre sizing device, including the bottom plate, the upper surface fixed mounting of bottom plate has the slurry tank, one side upper end of slurry tank is provided with the deflector, and the both sides upper surface of deflector is fixedly connected with the flow guide cover board through the support block, and the lower surface fixed connection of flow guide cover board has the air outlet box, and the surface fixed mounting of air outlet box one side has multiple groups of sprayer, and the lower surface fixed connection of deflector is through the support plate and the upper surface of deflector, and one end of air outlet box is provided with the air -blowing mechanism, and one end fixed connection of deflector has the silk roll no.

Description

Technical Field

[0001] This utility model relates to the technical field of carbon fiber bundle sizing device, specifically a large-bundle carbon fiber sizing device. Background Technology

[0002] The carbonization production of carbon fiber includes processes such as oxidation, carbonization, surface treatment, sizing, and winding. During surface treatment, active groups are introduced onto the carbon fiber surface to improve its interfacial bonding ability. In the subsequent sizing process, a film is formed on the carbon fiber surface, protecting both the active groups and the fiber from damage. Simultaneously, it binds the carbon fiber monofilaments together, improving fiber bundle density and flexibility, facilitating subsequent processing such as weaving and prepreg production.

[0003] A carbon fiber tow sizing treatment device disclosed in patent application number 202420826564.X includes a base plate, an impregnation tank installed at the top of the base plate, a pair of first retainers installed on one side of the top of the base plate, an infeed roller rotatably connected to the inner side of the first retainers, a second retainer and a third retainer sequentially installed on the other side of the top of the base plate, a first output roller rotatably connected to the inner side of the second retainer, a second output roller rotatably connected to the inner side of the third retainer, a drying mechanism between the first output roller and the second output roller, an impregnation mechanism inside the impregnation tank, the impregnation mechanism including an impregnation roller, extension frames rotatably connected to both ends of the impregnation roller, a crossbar installed at the top of the extension frame, and electric telescopic rods on both sides of the impregnation tank. The bottom end of the electric telescopic rod is fixedly connected to the top of the base plate, and the output end of the electric telescopic rod is fixedly connected to the bottom end of the crossbar. This device effectively adjusts the height of the impregnation roller, facilitating carbon fiber tow threading and possessing high practical value.

[0004] However, existing technologies still have certain shortcomings. During the sizing process of carbon fiber tow, the drying tube and the blowing tube can be used to process the sized tow from multiple angles and control the amount of sizing. However, during use, some of the sizing liquid on the carbon fiber tow drips onto the blowing tube when it passes through the drying tube. When the sizing liquid solidifies, it will block the blowing tube, thus affecting the blowing effect on the carbon fiber tow. Secondly, after the sizing liquid on the carbon fiber tow filament dries, the dripping liquid will cause irregular protrusions to form on the carbon fiber tow filament ... Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a large-tow carbon fiber sizing device, which solves the problem that the sizing liquid on the carbon fiber easily clogs the blower pipe during use, thus avoiding affecting the blowing effect of the blower pipe on the carbon fiber bundle. At the same time, it can treat the surface of the carbon fiber bundle after sizing and drying to prevent irregular protrusions from forming on the surface of the carbon fiber bundle, thereby further improving the production quality of the carbon fiber bundle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large-tow carbon fiber sizing device includes a base plate, a slurry tank fixedly mounted on the upper surface of the base plate, a guide plate at the upper end of one side of the slurry tank, guide hoods fixedly connected to both sides of the guide plate via support blocks, an air outlet box fixedly connected to the lower surface of the guide hood, multiple sets of nozzles fixedly mounted on one side of the air outlet box, the lower surface of the guide plate fixedly connected to the upper surface of the base plate via a support plate, a blower mechanism at one end of the air outlet box, a first extrusion roller fixedly connected to one end of the guide plate, a horizontal plate on one side of the first extrusion roller, multiple extrusion holes inside the horizontal plate, a semi-ring cutter fixedly connected to one side of the horizontal plate, the semi-ring cutter corresponding to the extrusion holes, a second extrusion roller mounted on one side of the horizontal plate, symmetrical grooves on the inner sidewall of the slurry tank, an impregnation roller connected inside the groove via a support assembly, and a float plate above the impregnation roller.

[0007] Preferably, the support assembly includes a movable block, a vertical plate is fixedly connected to one side surface of the movable block, the lower end of the vertical plate is rotatably connected to the impregnation roller, and one side surface of the vertical plate is fixedly connected to one end of the floating plate.

[0008] Preferably, a limiting rod is fixedly connected to the upper surface of the movable block, and the upper end of the limiting rod passes through the slurry tank and is slidably connected to the slurry tank.

[0009] Preferably, the blower mechanism includes a blower, which is fixedly installed on the upper surface of the base plate. A heating box is connected to one side of the blower through a pipe, and a conduit is fixedly connected to one side surface of the heating box. One end of the conduit is fixedly connected to one end of the air outlet box.

[0010] Preferably, a support frame is symmetrically arranged on the other side of the slurry tank, and a wire feed roller is rotatably connected to the upper end of the support frame, with the wire feed roller aligned with the slurry dipping roller.

[0011] Preferably, an L-shaped plate is symmetrically fixedly connected to the lower surface of the horizontal plate, and one end of the L-shaped plate is fixedly connected to one end of the guide plate.

[0012] This invention provides a sizing device for large-tow carbon fiber. Compared with the prior art, it has the following advantages: By cooperating with the guide shroud above the guide plate and the air outlet box fixedly connected below the guide shroud, the horizontal plate connected to one end of the guide plate via an L-shaped plate, and the semi-ring knife fixedly connected to one side of the horizontal plate, the problem of the slurry on the carbon fiber easily clogging the air pipe during the use of the existing carbon fiber bundle sizing device is solved. This avoids affecting the blowing effect of the air pipe on the carbon fiber bundle. At the same time, the surface of the carbon fiber bundle can be treated after the carbon fiber bundle is sized and dried to avoid irregular protrusions on the surface of the carbon fiber bundle, thereby further improving the production quality of carbon fiber bundle.

[0013] The slurry roller is always immersed in the slurry during the sizing process of carbon fiber bundles. This is achieved by the symmetrically opened slurry grooves on the inner surface of the slurry tank and the sliding block inside the slurry grooves, which cooperate with the floating plate connected to one side of the sliding block via a vertical plate. This avoids the need for workers to adjust the height of the slurry roller during the sizing process of carbon fiber bundles, thus reducing the trouble for workers and improving the efficiency of sizing carbon fiber bundles. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure of the slurry tank; Figure 3 This utility model Figure 1 Schematic diagram of the middle guide vane; Figure 4 This utility model Figure 3 A side view structural diagram.

[0015] In the diagram: 1. Base plate; 101. Support frame; 102. Feed roller; 2. Slurry tank; 201. Slide groove; 202. Float plate; 203. Dipping roller; 204. Vertical plate; 205. Moving block; 206. Limiting rod; 3. Guide plate; 301. Support plate; 302. Guide cover plate; 303. Exit roller one; 304. Air box; 305. Guide tube; 306. Exit roller two; 307. Horizontal plate; 308. Exit hole; 309. Heating box; 3010. Blower; 3011. Semi-ring knife; 3012. L-shaped plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a large-tow carbon fiber sizing device, including a base plate 1, a slurry tank 2 fixedly installed on the upper surface of the base plate 1, a guide plate 3 provided on the upper end of one side of the slurry tank 2, guide hoods 302 fixedly connected to both sides of the upper surface of the guide plate 3 via support blocks, an air outlet box 304 fixedly connected to the lower surface of the guide hood 302, multiple sets of nozzles fixedly installed on one side of the air outlet box 304, the lower surface of the guide plate 3 fixedly connected to the upper surface of the base plate 1 via a support plate 301, and a blower provided at one end of the air outlet box 304. The mechanism includes a guide plate 3 with a first output roller 303 fixedly connected to one end. A horizontal plate 307 is provided on one side of the first output roller 303. Multiple output holes 308 are opened inside the horizontal plate 307. A semi-ring knife 3011 is fixedly connected to one side surface of the horizontal plate 307. The semi-ring knife 3011 corresponds to the output holes 308. A second output roller 306 is installed on one side surface of the horizontal plate 307. A sliding groove 201 is symmetrically opened on the inner side wall of the slurry tank 2. An impregnation roller 203 is connected inside the sliding groove 201 through a support assembly. A float plate 202 is provided above the impregnation roller 203.

[0018] As a technical optimization of this utility model, the support component includes a movable block 205, a vertical plate 204 is fixedly connected to one side surface of the movable block 205, the lower end of the vertical plate 204 is rotatably connected to the slurry roller 203, and one side surface of the vertical plate 204 is fixedly connected to one end of the float plate 202. The support component facilitates the support of the slurry roller 203 and the float plate 202, and at the same time enables the slurry roller 203 and the float plate 202 to descend as the liquid level of the slurry decreases.

[0019] As a technical optimization of this utility model, a limiting rod 206 is fixedly connected to the upper surface of the moving block 205. The upper end of the limiting rod 206 passes through the slurry tank 2 and is slidably connected to the slurry tank 2. The limiting rod 206 can limit the moving block 205, thereby improving the movement stability of the moving block 205 and the slurry roller 203.

[0020] As a technical optimization of this utility model, the blowing mechanism includes a blower 3010, which is fixedly installed on the upper surface of the base plate 1. A heating box 309 is connected to one side of the blower 3010 through a pipe. A conduit 305 is fixedly connected to one side surface of the heating box 309. One end of the conduit 305 is fixedly connected to one end of the air outlet box 304. By the cooperation of the blower 3010 and the heating box 309 in the blowing mechanism, air can be blown onto the sizing carbon fiber bundles, so that the slurry on the surface of the carbon fiber bundles can be dried quickly.

[0021] As a technical optimization of this utility model, a support frame 101 is symmetrically arranged on the other side of the slurry tank 2. The upper end of the support frame 101 is rotatably connected to the wire feed roller 102, and the wire feed roller 102 is aligned with the slurry dipping roller 203.

[0022] As a technical optimization of this utility model, an L-shaped plate 3012 is symmetrically fixedly connected to the lower surface of the horizontal plate 307, and one end of the L-shaped plate 3012 is fixedly connected to one end of the guide plate 3.

[0023] In use, this invention first pours slurry into the slurry tank 2. At this time, the slurry roller 203 is suspended inside the slurry tank 2 due to the buoyancy of the float plate 202. Then, one end of the carbon fiber bundle passes over the top of the feed roller 102 and the bottom of the slurry roller 203, immersing the carbon fiber bundle in the slurry. Afterward, one end of the carbon fiber bundle passes over the guide plate 3 and the guide hood 302. As the slurry-immersed carbon fiber bundle passes through the guide hood 302 and the air outlet box 304, the dripping slurry is guided by the guide hood 302 onto the guide plate 3, preventing it from dripping onto the air outlet box 304 and thus preventing the nozzles on one side of the air outlet box 304 from being blocked. At the same time, the blower 3010 in the blower mechanism is started, and the blower 3010 will blow air through the heating box 3. The air is fed into the conduit 305 and heated by the heating box 309. Then, the carbon fiber bundles are blown through the nozzles on one side of the air outlet box 304. The bundles then pass around the side surface of the first output roller 303 and align with the semi-ring cutter 3011. They also pass through the cross plate 307. At this time, the sized carbon fiber bundles are conveyed away by the second output roller 306. During the process of conveying the carbon fiber bundles by the second output roller 306, the slurry protrusions on the carbon fiber surface will be removed by the semi-ring cutter 3011, thus ensuring the smoothness of the carbon fiber surface. As the carbon fiber bundles are sized, the slurry in the slurry tank 2 will decrease. Therefore, the slurry roller 203 will descend with the slurry level through the float plate 202, so that the carbon fiber bundles are always in the slurry.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sizing device for large-tow carbon fiber, comprising a base plate (1), characterized in that: A slurry tank (2) is fixedly installed on the upper surface of the base plate (1). A guide plate (3) is provided on the upper end of one side of the slurry tank (2). A guide hood (302) is fixedly connected to both sides of the upper surface of the guide plate (3) through a support block. An air outlet box (304) is fixedly connected to the lower surface of the guide hood (302). Multiple sets of nozzles are fixedly installed on one side of the air outlet box (304). The lower surface of the guide plate (3) is fixedly connected to the upper surface of the base plate (1) through a support plate (301). A blower mechanism is provided at one end of the air outlet box (304). A wire feed roller is fixedly connected to one end of the guide plate (3). (303) A horizontal plate (307) is provided on one side of the first extrusion roller (303). Multiple extrusion holes (308) are opened inside the horizontal plate (307). A semi-ring knife (3011) is fixedly connected to one side surface of the horizontal plate (307). The semi-ring knife (3011) corresponds to the extrusion hole (308). An extrusion roller (306) is installed on one side surface of the horizontal plate (307). A sliding groove (201) is symmetrically opened on the inner side wall of the slurry tank (2). An impregnation roller (203) is connected inside the sliding groove (201) through a support assembly. A float plate (202) is provided above the impregnation roller (203).

2. The sizing device for large-tow carbon fiber according to claim 1, characterized in that: The support assembly includes a movable block (205), a vertical plate (204) is fixedly connected to one side surface of the movable block (205), the lower end of the vertical plate (204) is rotatably connected to the impregnation roller (203), and one side surface of the vertical plate (204) is fixedly connected to one end of the floating plate (202).

3. The sizing device for large-tow carbon fiber according to claim 2, characterized in that: The upper surface of the movable block (205) is fixedly connected to a limiting rod (206), and the upper end of the limiting rod (206) passes through the slurry tank (2) and is slidably connected to the slurry tank (2).

4. The sizing device for large-tow carbon fiber according to claim 1, characterized in that: The blower mechanism includes a blower (3010), which is fixedly installed on the upper surface of the base plate (1). A heating box (309) is connected to one side of the blower (3010) through a pipe. A conduit (305) is fixedly connected to one side surface of the heating box (309). One end of the conduit (305) is fixedly connected to one end of the air outlet box (304).

5. The sizing device for large-tow carbon fiber according to claim 1, characterized in that: A support frame (101) is symmetrically arranged on the other side of the slurry tank (2). The upper end of the support frame (101) is rotatably connected to the wire feed roller (102), and the wire feed roller (102) is aligned with the slurry dipping roller (203).

6. The sizing device for large-tow carbon fiber according to claim 1, characterized in that: The lower surface of the horizontal plate (307) is symmetrically fixedly connected with an L-shaped plate (3012), and one end of the L-shaped plate (3012) is fixedly connected to one end of the guide plate (3).

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