A basalt fiber thermoplastic pre-impregnation device

Abstract

This invention discloses a basalt fiber thermoplastic preimpregnation device, comprising a processing table, with a first support frame and a second support frame fixedly connected to both sides of the top of the processing table. A yarn guiding device is installed on the first support frame, and a winding device is installed on the second support frame. The preimpregnation assembly includes an impregnation mold and a third support frame, the third support frame being fixedly connected to the top of the processing table. The impregnation mold is mounted on the third support frame, and the yarn guiding device and winding device are respectively configured corresponding to the impregnation mold. The impregnation mold is used for preimpregnating basalt fibers. A quantitative conveying component is mounted on the impregnation mold for conveying the preimpregnated resin to the basalt fibers within the impregnation mold. A cleaning component is mounted on the impregnation mold for cleaning the impregnation mold. This invention achieves stable conveying pressure of the preimpregnated resin, improves the overall impregnation effect, cleans residual preimpregnated resin, avoids oxidation, yellowing, or carbonization of preimpregnated resin accumulated internally over a long period, and ensures continuous production.

Description

Technical Field

[0001] This invention relates to the field of impregnation equipment technology, and in particular to a basalt fiber thermoplastic prepreg device. Background Technology

[0002] Basalt fiber is a continuous fiber drawn from natural basalt, and it is a new type of inorganic, environmentally friendly, and high-performance fiber material. Basalt continuous fiber not only has high strength, but also possesses a variety of excellent properties such as electrical insulation, corrosion resistance, and high-temperature resistance. It is a truly green and environmentally friendly material, and it has been widely used in fiber-reinforced composite materials, friction materials, shipbuilding materials, thermal insulation materials, the automotive industry, high-temperature filter fabrics, and protective applications.

[0003] Basalt fiber typically requires pre-impregnation with thermoplastic resin to create pre-impregnated resin. Existing pre-impregnation equipment often uses a one-end fiber feed and one-end fiber output method. During the process, the resin is usually extruded through a spiral extruder. Because the impregnation die is semi-open, it suffers from low internal resin pressure, affecting the impregnation effect. Furthermore, a large amount of resin easily accumulates in the impregnation grooves within the die, leading to oxidation, yellowing, or carbonization of the pre-impregnated resin over time, impacting continuous production. Additionally, inorganic fibers such as basalt, carbon fiber, and glass fiber have small diameters and are brittle, requiring meticulous design of the impregnation process. Current melt impregnation methods easily lead to fiber breakage and fuzzing during the impregnation process.

[0004] Therefore, there is an urgent need for a basalt fiber thermoplastic prepreg device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a basalt fiber thermoplastic prepreg device to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a basalt fiber thermoplastic prepreg device, comprising: a processing table, wherein a first support frame and a second support frame are fixedly connected to the top two sides of the processing table respectively; a yarn guiding device is installed on the first support frame for outputting basalt fiber; and a winding device is installed on the second support frame for winding the basalt fiber.

[0007] The pre-impregnation assembly includes an impregnation mold and a third support frame. The third support frame is fixedly connected to the center of the top of the processing table. The impregnation mold is disposed on the third support frame. The yarn guiding device and the winding device are respectively disposed corresponding to the impregnation mold. The impregnation mold is used to pre-impregnate the basalt fiber.

[0008] A thermoplastic resin metering conveying assembly, typically a screw extruder, is mounted on the impregnation die and is used to meter the basalt fibers within the impregnation die to convey thermoplastic impregnation resin.

[0009] A cleaning component, disposed on the impregnation mold, is used to clean the impregnation mold.

[0010] Preferably, the impregnation mold includes several pre-impregnation tanks, which are fixedly connected to the top of the third support frame and are distributed at equal intervals along the axial direction. The interval can be freely adjusted according to the actual production situation, and the interval is 0 to any length. Each of the several pre-impregnation tanks is provided with a pre-impregnation channel. The several pre-impregnation channels are located on the same axis and adjacent pre-impregnation channels are correspondingly arranged. The basalt fiber is located in the pre-impregnation channel. The quantitative conveying component is arranged on the pre-impregnation tank and is correspondingly arranged with the pre-impregnation channel.

[0011] Preferably, the quantitative conveying assembly includes several storage boxes, which are fixedly connected to the top of the pre-impregnation tank. An inlet is provided on the outer wall of each storage box, and an outlet is provided at the bottom of each storage box. A conveying channel is provided inside the pre-impregnation tank, with both ends of the conveying channel communicating with the outlet and the top of the pre-impregnation channel, respectively. A main shaft is rotatably connected to the top of the middle section of each storage box, and a stirring and conveying component is mounted on the main shaft, corresponding to the outlet. A motor is fixedly connected to the middle of the top of each storage box, and the top of the main shaft extends out of the storage box and is fixedly connected to the output shaft of the motor.

[0012] Preferably, the stirring and conveying component includes a column fixedly connected to the main shaft, and a plurality of stirring plates are fixedly connected at equal intervals along the circumference of the top of the outer side wall of the column. A gap is provided between the side of the stirring plate away from the main shaft and the inner side wall of the storage tank. A conveying component is provided on the column, and the stirring plates and the storage tank are respectively provided corresponding to the conveying component.

[0013] Preferably, the conveying component includes a plurality of vertical grooves formed on the outer wall of the column, each of the vertical grooves corresponding to a plurality of stirring plates. A slider is provided in each vertical groove. A support ring is slidably connected to the inner wall of the storage box. A sealing plate is provided between the support ring and the slider. One end of the sealing plate is fixedly connected to the slider. An annular groove is formed on the inner wall of the support ring. The other end of the sealing plate is slidably connected to the annular groove. An elongated hole is formed on the sealing plate. The stirring plate is adapted to the elongated hole. A lifting component is provided on the column, and the slider is slidably connected to the vertical groove through the lifting component.

[0014] Preferably, the lifting component includes a threaded rod rotatably connected in the vertical slide groove, the threaded rod being threadedly connected to the slider, the top end of the threaded rod extending out of the column and coaxially fixedly connected to a first gear, a second gear being sleeved on the main shaft, the second gear being fixedly connected to the top end inside the storage box, and the first gear meshing with the second gear.

[0015] Preferably, the cleaning assembly includes a cleaning frame disposed in the pre-impregnation channel and the conveying channel, the outer wall of the cleaning frame being in sliding contact with the inner wall of the pre-impregnation channel and the conveying channel, and two driving members being disposed on the pre-impregnation tank, the two cleaning frames being slidably cleaned in the pre-impregnation channel and the conveying channel respectively by the two driving members.

[0016] Preferably, the driving component includes a connecting line fixedly connected to both sides of the cleaning frame, with both ends of the connecting line passing through the cleaning frame and the pre-impregnation tank located outside the pre-impregnation tank. Two take-up rollers are fixedly connected to both sides of the pre-impregnation tank, and both ends of the connecting line are fixedly connected to the two take-up rollers respectively.

[0017] Preferably, heating wires are installed inside the prepreg tank, the storage box, the column, and the stirring plate.

[0018] Preferably, the conveying channel is inclined at an angle of 10°-85°.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] This invention provides a basalt fiber thermoplastic prepreg device. The yarn guiding device is used to output basalt fiber, which is then transported to the impregnation mold. The quantitative conveying component stably conveys the prepreg resin to the basalt fiber inside, while ensuring the pressure during the prepreg process and guaranteeing the overall impregnation effect. After the prepreg process is completed, the cleaning component is used to clean the residual prepreg resin in the impregnation mold, preventing the prepreg resin from oxidizing, yellowing, or carbonizing over a long period of time, thus ensuring continuous production.

[0021] The invention described above is also applicable to the impregnation production of other fiber thermoplastic composite systems, such as the production and preparation of various thermoplastic prepregs reinforced with carbon fiber, glass fiber, aramid fiber, PBO fiber, etc. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the quantitative conveying component and the impregnation mold in Embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the front structure of the quantitative conveying component and the impregnation mold in Embodiment 1 of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the prepreg tank in Embodiment 2 of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of the prepreg tank in Embodiment 3 of the present invention;

[0028] Figure 6 This is a schematic diagram of the front structure of the prepreg tank in Embodiment 3 of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of Embodiment 5 of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of Embodiment Six of the present invention;

[0032] The components are as follows: 1. Processing table; 2. First support frame; 3. Second support frame; 4. Yarn guiding device; 5. Winding device; 6. Third support frame; 7. Pre-impregnation tank; 8. Pre-impregnation channel; 9. Storage box; 10. Feed inlet; 11. Discharge outlet; 12. Conveying channel; 13. Main shaft; 14. Motor; 15. Column; 16. Stirring plate; 17. Vertical chute; 18. Slider; 19. Support ring; 20. Sealing plate; 21. Annular chute; 22. Threaded rod; 23. First gear; 24. Second gear; 25. Cleaning frame; 26. Connecting line; 27. Winding roller; 28. Wavy chute; 29. ​​Limiting slider; 30. Extrusion roller; 31. Rotating shaft; 32. Groove; 33. Protrusion; 34. Drive motor; 35. Third gear; 36. Return channel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1:

[0036] Reference Figures 1-3 This invention provides a basalt fiber thermoplastic prepreg device, comprising:

[0037] Processing table 1, with a first support frame 2 and a second support frame 3 fixedly connected to the top two sides of the processing table 1 respectively. A yarn guiding device 4 is installed on the first support frame 2, which is used to output basalt fiber; a winding device 5 is installed on the second support frame 3, which is used to wind up basalt fiber.

[0038] The pre-impregnation assembly includes an impregnation mold and a third support frame 6. The third support frame 6 is fixedly connected to the top center of the processing table 1. The impregnation mold is set on the third support frame 6. The yarn guiding device 4 and the winding device 5 are respectively set corresponding to the impregnation mold. The impregnation mold is used to pre-impregnate basalt fibers.

[0039] A quantitative conveying component, installed on the impregnation mold, is used to quantitatively convey basalt fibers pre-impregnated with resin within the impregnation mold;

[0040] A cleaning component, installed on the impregnation mold, is used to clean the impregnation mold.

[0041] The scheme is further optimized. The impregnation mold includes several pre-impregnation tanks 7. The several pre-impregnation tanks 7 are fixedly connected to the top of the third support frame 6 and are distributed at equal intervals along the axial direction. Each of the several pre-impregnation tanks 7 has a pre-impregnation channel 8. The several pre-impregnation channels 8 are located on the same axis and adjacent pre-impregnation channels 8 are correspondingly arranged. Basalt fiber is located in the pre-impregnation channel 8. The quantitative conveying component is set on the pre-impregnation tank 7 and is correspondingly arranged with the pre-impregnation channel 8.

[0042] Reference Figure 1 The basalt fiber is pre-impregnated step by step through several pre-impregnation tanks 7. At the same time, each of the pre-impregnation tanks 7 is equipped with a quantitative conveying component, which is connected to the pre-impregnation channel 8 to ensure multiple pre-impregnations of the basalt fiber in the pre-impregnation channel 8, thereby ensuring the pre-impregnation effect.

[0043] The scheme is further optimized. The quantitative conveying component includes several storage boxes 9. The storage boxes 9 are fixedly connected to the top of the pre-impregnation tank 7. The outer wall of the storage box 9 is provided with a feed port 10 and the bottom of the storage box 9 is provided with a discharge port 11. The pre-impregnation tank 7 is provided with a conveying channel 12. The two ends of the conveying channel 12 are respectively connected to the discharge port 11 and the top of the pre-impregnation channel 8. The top of the middle part of the storage box 9 is rotatably connected to a main shaft 13. The main shaft 13 is provided with a stirring and conveying component, which is correspondingly set with the discharge port 11. The top of the storage box 9 is fixedly connected to a motor 14. The top of the main shaft 13 extends out of the storage box 9 and is fixedly connected to the output shaft of the motor 14.

[0044] The preimpregnated resin is stored in the storage chamber 9 and transported to the preimpregnated channel 8 through the conveying channel 12. The preimpregnated resin in the storage box 9 is uniformly stirred and stably conveyed, thereby ensuring the quantitative delivery of preimpregnated resin per unit time, realizing stable preimpregnation treatment of basalt fiber and ensuring the preimpregnation effect.

[0045] The scheme is further optimized. The mixing and conveying component includes a column 15 fixedly connected to the main shaft 13. Several mixing plates 16 are fixedly connected at equal intervals along the circumference of the top of the outer wall of the column 15. A gap is provided between the side of the mixing plate 16 away from the main shaft 13 and the inner wall of the storage box 9. A conveying component is provided on the column 15. The mixing plate 16 and the storage box 9 are respectively set with the conveying component.

[0046] The column 15 rotates with the main shaft 13. During rotation, the stirring plate 16 stirs the preimpregnated resin inside, ensuring the overall fluidity of the preimpregnated resin and preventing it from accumulating and settling. This ensures the stable overall conveying of the preimpregnated resin and that it flows out evenly from the outlet 11, thus guaranteeing the overall preimpregnation effect.

[0047] The scheme is further optimized. The conveying component includes several vertical sluices 17 opened on the outer wall of the column 15. The several vertical sluices 17 are respectively set with several stirring plates 16. A slider 18 is set in the vertical sluice 17. A support ring 19 is slidably connected to the inner wall of the storage box 9. A sealing plate 20 is set between the support ring 19 and the slider 18. One end of the sealing plate 20 is fixedly connected to the slider 18. An annular sluice 21 is opened on the inner wall of the support ring 19. The other end of the sealing plate 20 is slidably connected to the annular sluice 21. An elongated hole is opened on the sealing plate 20. The stirring plate 16 is adapted to the elongated hole. A lifting component is set on the column 15. The slider 18 is slidably connected to the vertical sluice 17 through the lifting component.

[0048] The lifting component drives the slider 18 to slide vertically in the vertical groove 17. When the slider 18 moves downward, it drives the sealing plate 20 and the support ring 19 to move downward synchronously. When the sealing plate 20 moves, it squeezes the preimpregnated resin in the space below and gradually conveys it into the conveying channel 12. The sealed space formed achieves stable conveying of the preimpregnated resin. At the same time, the overall impregnation effect of the preimpregnated resin is guaranteed during the conveying, thereby improving the preimpregnation efficiency of basalt fiber.

[0049] Reference Figure 2 The scheme is further optimized. The lifting component includes a threaded rod 22 rotatably connected in the vertical slide groove 17. The threaded rod 22 is threadedly connected to the slider 18. The top of the threaded rod 22 extends out of the column 15 and is coaxially fixedly connected to the first gear 23. The main shaft 13 is fitted with a second gear 24. The second gear 24 is fixedly connected to the top of the inside of the storage box 9. The first gear 23 and the second gear 24 mesh.

[0050] The meshing first gear 23 and second gear 24 can synchronously drive the threaded rod 22 to rotate when the column 15 rotates. When the threaded rod 22 rotates, it drives the threaded slider 18 to move vertically in the vertical groove 17, thereby achieving stable delivery of the pre-impregnated resin.

[0051] The solution is further optimized. The cleaning component includes a cleaning frame 25 set in the pre-impregnation channel 8 and the conveying channel 12. The outer wall of the cleaning frame 25 slides in contact with the inner wall of the pre-impregnation channel 8 and the conveying channel 12. Two driving components are provided on the pre-impregnation tank 7. The two cleaning frames 25 slide and clean in the pre-impregnation channel 8 and the conveying channel 12 respectively through the two driving components.

[0052] Reference Figure 2 The cleaning frame 25 is driven by the drive component to slide in the prepreg channel 8 and the conveying channel 12. When sliding, the cleaning frame 25 cleans the prepreg resin remaining on the inner wall of the prepreg channel 8 and the conveying channel 12, so as to avoid excessive prepreg resin remaining in the prepreg tank 7, which is prone to oxidation, yellowing or carbonization after a long time, affecting continuous production.

[0053] The scheme is further optimized. The driving component includes a connecting line 26 fixedly connected to both sides of the cleaning frame 25. The two ends of the connecting line 26 pass through the cleaning frame 25 and the pre-impregnation tank 7 respectively and are located outside the pre-impregnation tank 7. Two take-up rollers 27 are fixedly connected to both sides of the pre-impregnation tank 7 respectively. The two ends of the connecting line 26 are fixedly connected to the two take-up rollers 27 respectively.

[0054] Reference Figure 3 The two take-up rollers 27 are each driven by two control motors to rotate. When rotating, they pull the connecting line 26 to drive the cleaning frame 25 to slide in the pre-impregnation channel 8 and the conveying channel 12.

[0055] The design was further optimized by installing heating wires in the pre-impregnation tank 7, storage box 9, column 15, and stirring plate 16.

[0056] The temperature of the prepreg resin is maintained by the heating wire (not shown in the figure), thereby ensuring its stable flow and the overall prepreg effect. At the same time, the heating wire on the prepreg tank 7 can also facilitate the cleaning frame 25 to clean the prepreg resin residue on the inner wall of the prepreg channel 8 when heating later.

[0057] The design was further optimized by setting the conveyor channel 12 at an angle of 10°-85°.

[0058] By setting up a conveying channel 12 with a certain inclination angle, the contact angle and contact area with the basalt limit are further improved, ensuring the pre-impregnation effect.

[0059] Example 2:

[0060] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the prepreg channel 8 is a wave-shaped structure, and the bottom end of the conveying channel 12 is set to correspond to the bending point of the wave-shaped structure. The basalt fiber moves in a wave-shaped manner in the prepreg channel 8 of the wave-shaped structure. The wave-shaped structure further ensures the extrusion pressure received by the basalt fiber, thereby ensuring the prepreg effect.

[0061] The scheme is further optimized by providing a wavy groove 28 on the inner wall of the pre-soaking channel 8. Limiting sliders 29 are fixedly connected to both sides of the cleaning frame 25. The limiting sliders 29 are slidably connected to the wavy groove 28 to ensure that the cleaning frame 25 slides in the wavy groove 28 to achieve cleaning.

[0062] Example 3:

[0063] Reference Figures 5-6 The difference between this embodiment and Embodiment 1 is that two extrusion rollers 30 are provided in the prepreg channel 8, and two rotating shafts 31 are rotatably connected in the prepreg channel 8. The two extrusion rollers 30 are respectively fixedly connected to the two rotating shafts 31. The upper extrusion roller 30 is correspondingly arranged with the conveying channel 12. Several grooves 32 are evenly spaced along the circumference on the outer wall of the upper extrusion roller 30. The grooves 32 are used to receive the prepreg resin conveyed in the conveying channel 12. Protrusions 33 are fixedly connected along the circumference on the outer wall of the lower extrusion roller 30. The protrusions 33 are adapted to the grooves 32. A drive motor 34 is fixedly connected to the outer wall of the prepreg tank 7. One end of the two rotating shafts 31 extends out of the prepreg tank 7 and is coaxially fixedly connected to a third gear 35. The two third gears 35 mesh. One end of one rotating shaft 31 is fixedly connected to the output shaft of the drive motor 34.

[0064] The two extrusion rollers 30 are driven to rotate by the drive motor 34. The groove 32 is used to receive the preimpregnated resin. The cooperation between the protrusion 33 and the groove 32 further ensures the extrusion pressure on the basalt fiber during preimpregnation, thereby ensuring the preimpregnation effect.

[0065] The scheme was further optimized by staggering the movement extrusion points of two opposing extrusion rollers 30 in several preimpregnation channels 8 to ensure sufficient preimpregnation of the entire basalt fiber and improve the preimpregnation effect.

[0066] To further optimize the solution, two cleaning frames 25 can be set in the prepreg channel 8, located on both sides of the extrusion roller 30, and the cleaning of the prepreg channel 8 can be achieved by two separate take-up rollers 27.

[0067] Example 4:

[0068] Reference Figure 7 In this embodiment, three prepreg tanks 7 are provided, and the prepreg channels 8 in the three prepreg tanks 7 form three mold sections, which are arranged from left to right as a gourd-shaped conical structure, a wavy structure and a smooth structure. The fiber material passes through the gourd-shaped conical structure, the wavy structure and the smooth structure from left to right. At the same time, the prepreg tank 7 located on the left side is transported by two conveying channels 12 at the upper and lower ends. The prepreg channels 8 at both ends are fixedly connected by a return channel 36, which is used to recover the prepreg resin on the right side into the prepreg channel 8 on the left side.

[0069] The specific gourd-shaped conical structure has an inlet dimension larger than the outlet dimension, which makes the pressure of the pre-impregnated resin move forward and prevents the pre-impregnated resin from remaining in the dead corner.

[0070] Example 5:

[0071] Reference Figure 8 In this embodiment, 'a' represents thermoplastic resin and 'b' represents basalt fiber. The raw material is 2400 tex continuous basalt fiber tow, 60 spindles, and the resin is nylon 6. Antioxidants and color masterbatch are also added. The temperatures of the three mold sections from left to right are set to 230℃, 260℃, and 240℃, respectively. The cross-sectional shape at the exit of the three mold sections is a rectangle of 700mm × 0.2mm. The product prepared is basalt fiber / nylon unidirectional prepreg sheet. After continuous production of 2000m, production is stopped. The cleaning component of Example 1 is used to clean the residual carbon inside the mold. After cleaning, production is repeated to ensure the stability of the fiber content and surface defect ratio of the prepreg products produced in batches.

[0072] Example 6:

[0073] Reference Figure 9In this embodiment, c represents thermoplastic resin and d represents basalt fiber. The difference between this embodiment and Embodiment 5 is that the raw material is continuous basalt fiber reinforced polyetheretherketone (PEEK) prepreg narrow strip. The strip width is 6.35 mm, the thickness is 0.15 mm, and the number of narrow strips is 50. Simultaneously, a small amount of PEEK resin polymer is supplied through conveying channel 12 to coat the narrow strip. The temperatures inside the three mold sections are set from left to right to 360°C, 400°C, and 360°C, respectively. The cross-sectional shape of the exit of the three mold sections is a circle with a diameter of 7.9 mm. The prepared product is basalt fiber / PEEK rod. After continuous production for 1000 m, production is stopped. The cleaning component from Embodiment 1 is used to clean the residual carbon inside the mold. After cleaning, production is repeated to ensure the stability of the fiber content and surface defect ratio of the prepreg products in each batch.

[0074] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0075] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A basalt fiber thermoplastic prepreg device, characterized in that, include: A processing table (1) is provided, with a first support frame (2) and a second support frame (3) fixedly connected to the top two sides of the processing table (1). A yarn guide device (4) is installed on the first support frame (2), which is used to output basalt fiber. A winding device (5) is installed on the second support frame (3), which is used to wind up the basalt fiber. The pre-impregnation assembly includes an impregnation mold and a third support frame (6). The third support frame (6) is fixedly connected to the top center of the processing table (1). The impregnation mold is set on the third support frame (6). The yarn guiding device (4) and the winding device (5) are respectively set corresponding to the impregnation mold. The impregnation mold is used to pre-impregnate the basalt fiber. A quantitative conveying component, disposed on the impregnation mold, is used to quantitatively convey the basalt fiber pre-impregnated with resin within the impregnation mold; a cleaning component, disposed on the impregnation mold, is used to clean the impregnation mold. The impregnation mold includes several pre-impregnation tanks (7), which are fixedly connected to the top of the third support frame (6) and distributed at equal intervals along the axial direction. Each of the pre-impregnation tanks (7) has a pre-impregnation channel (8) located on the same axis, with adjacent channels (8) corresponding to each other. The basalt fiber is located within the pre-impregnation channel (8). The quantitative conveying assembly is disposed on the pre-impregnation tank (7) and corresponds to the pre-impregnation channel (8). The quantitative conveying assembly includes several... A storage tank (9) is fixedly connected to the top of the pre-impregnation tank (7). An inlet (10) is provided on the outer wall of the storage tank (9), and an outlet (11) is provided at the bottom of the storage tank (9). A conveying channel (12) is provided inside the pre-impregnation tank (7). The two ends of the conveying channel (12) are respectively connected to the outlet (11) and the top of the pre-impregnation channel (8). A main shaft (13) is rotatably connected to the top of the middle section of the storage tank (9). A stirring and conveying component is provided on the main shaft (13). The mixing and conveying components are correspondingly arranged with the discharge port (11). A motor (14) is fixedly connected to the top center of the storage box (9). The top of the main shaft (13) extends out of the storage box (9) and is fixedly connected to the output shaft of the motor (14). The cleaning assembly includes a cleaning frame (25) arranged in the pre-impregnation channel (8) and the conveying channel (12). The outer wall of the cleaning frame (25) slides in contact with the inner wall of the pre-impregnation channel (8) and the conveying channel (12). Two driving components are arranged on the pre-impregnation tank (7). The cleaning frame (25) is slidably cleaned in the pre-impregnation channel (8) and the conveying channel (12) by two driving components. The driving component includes a connecting line (26) fixedly connected to both sides of the cleaning frame (25). The two ends of the connecting line (26) pass through the cleaning frame (25) and the pre-impregnation tank (7) is located outside the pre-impregnation tank (7). Two take-up rollers (27) are fixedly connected to both sides of the pre-impregnation tank (7). The two ends of the connecting line (26) are fixedly connected to the two take-up rollers (27).

2. The basalt fiber thermoplastic prepreg device according to claim 1, characterized in that: The stirring and conveying component includes a column (15) fixedly connected to the main shaft (13). A plurality of stirring plates (16) are fixedly connected at equal intervals along the circumference of the top of the outer side wall of the column (15). A gap is provided between the side of the stirring plate (16) away from the main shaft (13) and the inner side wall of the storage box (9). A conveying component is provided on the column (15). The stirring plate (16) and the storage box (9) are respectively provided with the conveying component.

3. The basalt fiber thermoplastic prepreg device according to claim 2, characterized in that: The conveying component includes several vertical grooves (17) formed on the outer wall of the column (15). The several vertical grooves (17) are respectively arranged corresponding to several stirring plates (16). A slider (18) is arranged in the vertical groove (17). A support ring (19) is slidably connected to the inner wall of the storage box (9). A sealing plate (20) is arranged between the support ring (19) and the slider (18). One end of the sealing plate (20) is fixedly connected to the slider (18). An annular groove (21) is formed on the inner wall of the support ring (19). The other end of the sealing plate (20) is slidably connected to the annular groove (21). An elongated hole is formed on the sealing plate (20). The stirring plate (16) is adapted to the elongated hole. A lifting component is provided on the column (15). The slider (18) is slidably connected to the vertical groove (17) through the lifting component.

4. The basalt fiber thermoplastic prepreg device according to claim 3, characterized in that: The lifting component includes a threaded rod (22) rotatably connected in the vertical slide groove (17), the threaded rod (22) being threadedly connected to the slider (18), the top end of the threaded rod (22) extending out of the column (15) and coaxially fixedly connected to a first gear (23), a second gear (24) being sleeved on the main shaft (13), the second gear (24) being fixedly connected to the top end inside the storage box (9), and the first gear (23) meshing with the second gear (24).

5. The basalt fiber thermoplastic prepreg device according to claim 4, characterized in that: Heating wires are installed in the prepreg tank (7), the storage box (9), the column (15), and the stirring plate (16).

6. The basalt fiber thermoplastic prepreg device according to claim 5, characterized in that: The conveying channel (12) is inclined at an angle of 10°-85°.

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