A continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and use method

Abstract

The invention provides a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and a use method, belonging to the technical field of prepreg tape preparation. The continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and the use method include a yarn frame, a front traction roller, a yarn spreading device, a dipping box, a glue scraping device, a rear traction roller and a winding device arranged in sequence along the forward direction of the carbon fiber. The dipping box is used to contain glue liquid. The left and right side walls of the dipping box are provided with through holes for carbon fiber to enter and exit. The invention is used to process the glue liquid required for the preparation of the prepreg tape and solve the technical problem of uneven dipping. The upper and lower groups of material guide components can extend the path of the carbon fiber when dipping in the dipping box and change the contact time between the carbon fiber and the glue liquid; the stirring device that can be raised and lowered can vertically beat the glue liquid while stirring the glue liquid in the dipping box to make it more uniform; the cooperation of multiple tension rollers of the front traction roller allows the carbon fiber to be uniformly spread out mechanically.

Description

Technical Field

[0001] The present invention belongs to the technical field of prepreg tape preparation, and in particular, relates to a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and a use method. Background Art

[0002] Prepreg tape refers to a kind of strip prepreg made of parallel continuous fibers or unidirectional fabrics impregnated with resin. There are two types: thermosetting and thermoplastic. Thermoplastic carbon fiber composite materials have the advantages of good weather resistance, high fatigue strength, strong processability, low cost and recyclability, and have become a hot spot of industry attention. Thermoplastic resins include PA / PP / PPS / PEEK, etc. The composition of thermoplastic composite materials is becoming more and more complex, and their application in many fields is gradually increasing, especially in the field of aerospace. At present, foreign scholars have used the in-situ consolidation of thermoplastic composite materials PEEK and the joint consolidation of aircraft skins and trusses to strengthen the fuselage structure. The premise for achieving high-quality molding of thermoplastic continuous carbon fiber composite materials is to have a high-stability thermoplastic carbon fiber composite prepreg tape. Some properties of the prepreg tape are directly brought into the composite material, which is the basis of the composite material. The performance of the composite material depends to a large extent on the performance of the prepreg.

[0003] The invention of application number: CN202410784246.6 (publication number: CN118418332A) discloses a fiber reinforced thermoplastic resin composite material prepreg placement and winding device, including a fiber bundle roller, a prepreg placement component, a molten resin impregnation tank, and a winding component. The prepreg placement component, the molten resin impregnation tank, and the winding component are sequentially arranged on one side of the fiber bundle roller. The prepreg placement component includes a guide wire plate and a guide wire shaft. A guide roller is arranged inside the molten resin impregnation tank. The winding component includes a winding roller, a pressing roller, and a clamping structure. The clamping structure is used to clamp the end of the fiber filament;

[0004] The above patent lacks the treatment of carbon fiber soaked in glue. The glue prepared by the prepreg tape will become uneven or lumpy after long-term storage. The carbon fiber soaked in the glue will make the thickness of the prepreg tape product inconsistent or the soaking uneven, which will affect the subsequent use of the prepreg tape. Summary of the invention

[0005] The purpose of the present invention is to provide a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and use method, to process the glue solution required for the prepreg tape preparation, and solve the technical problem of uneven glue dipping.

[0006] The present invention is achieved in that:

[0007] The present invention provides a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device, comprising a creel, a front traction roller, a yarn spreading device, a glue dipping box, a glue scraping device, a rear traction roller and a winding device arranged in sequence along the advancing direction of the carbon fiber, wherein the carbon fiber drawn from the creel passes through the front traction roller, the yarn spreading device, the glue dipping box, the glue scraping device, the rear traction roller in sequence and is connected to the winding device;

[0008] The dipping box is used to contain glue liquid, and through holes for carbon fiber to enter and exit are opened on the left and right side walls of the dipping box. A stirring mechanism for processing glue liquid is vertically slidably connected in the dipping box, and the scraping device is located on the right inner wall of the dipping box;

[0009] The creel is provided with a plurality of unwinding rollers for winding carbon fiber bundles, and the winding device is provided with a winding roller for winding the carbon fiber bundles, and the winding roller is connected to the output end of the driving motor.

[0010] On the basis of the above technical solution, the device for preparing a continuous carbon fiber reinforced thermoplastic prepreg tape of the present invention can also be improved as follows:

[0011] Furthermore, the stirring mechanism comprises a support plate, on the front wall of which two vertically arranged bearing seats are fixedly mounted, and driven bevel gears are rotatably connected in the bearing seats via bearings, and the teeth of the two driven bevel gears are arranged opposite to each other;

[0012] A cylinder is fixedly installed in the middle of the driven bevel gear at the lower end, and a round rod is fixedly installed in the middle of the driven bevel gear at the upper end. The round rod passes through the driven bevel gear and the cylinder in sequence, and the outer circumferential surfaces of the bottom ends of the cylinder and the round rod are fixedly installed with stirring blades;

[0013] A driving bevel gear that is rotatably connected to the support plate and meshes with the two driven bevel gears is fixedly mounted on the front wall of the support plate. The output shaft of the rotating motor B extends forward and is connected to the driving bevel gear.

[0014] Furthermore, a rotating motor A is fixedly installed on the inner rear wall of the dipping box, the output shaft of the rotating motor A extends forward, and a circular plate is connected to the end thereof, the upper end of a connecting rod is hinged on the circular plate, and the lower end of the connecting rod is hinged to the upper end of the lifting rod;

[0015] The bottom end of the lifting rod is fixedly connected to the top end of the support plate, a guide sleeve is fixedly installed on the rear wall of the dipping box, and the lifting rod is vertically slidably connected in the guide sleeve.

[0016] Furthermore, two sets of material guide components are provided in the glue dipping box, the upper material guide components are fixedly mounted on the front and rear inner walls of the glue dipping box, and the lower material guide components are slidably connected to the front and rear inner walls of the glue dipping box;

[0017] A group of the material guide components includes two connecting plates arranged front and back, and the two connecting plates are connected with a plurality of equidistant rotating shafts for common rotation, and rollers are fixedly mounted on the outer circumference of the rotating shafts, and the plurality of rollers are distributed in the shape of the letter "W".

[0018] Furthermore, a driving roller is rotatably connected in the dipping box and near the through hole, and a lower driving roller is rotatably connected below the driving roller in the dipping box;

[0019] A lifting cylinder is fixedly installed on the left and right sides of the front inner wall and the rear inner wall of the dipping box, and the movable end of the lifting cylinder extends downward, and the lower end of the lifting cylinder on the same side is fixedly connected to the two ends of the connecting plate below.

[0020] Further, a transverse plate is fixedly installed on the right inner wall of the dipping box and located on the upper and lower sides of the through hole, and one end of a torsion spring is fixedly installed on the side of the transverse plate close to each other;

[0021] The left end of each of the transverse plates is hinged with one end of a scraper, the other ends of the scrapers are close to each other, and the scraper is fixedly connected to the other end of the torsion spring.

[0022] Furthermore, the front traction roller includes a plurality of tension rollers which are sequentially distributed in height, and a yarn unroller located behind the tension rollers.

[0023] A method for using a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device, comprising the following steps:

[0024] S1: The carbon fiber installed on the creel is drawn out at a certain speed through the front traction roller so that multiple layers of carbon fiber can form a plane and be evenly distributed;

[0025] S2: The carbon fiber is uniformly treated by the yarn spreading device and then enters the dipping box for dipping;

[0026] S3: soaking the continuous carbon fiber in the thermoplastic resin in the dipping box. When the carbon fiber is in the dipping box, the liquid is made uniform by a stirring mechanism;

[0027] S4: After the carbon fiber is dipped in the dipping box, the glue on the upper and lower surfaces is scraped off by the glue scraping device, and then it is wound on the winding device after passing through the rear traction roller;

[0028] S5: The carbon fiber is wound and rolled up by a winding device to obtain a continuous carbon fiber reinforced thermoplastic prepreg tape.

[0029] Compared with the prior art, the present invention provides a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device and use method, which has the following beneficial effects:

[0030] By setting two sets of upper and lower material guide components, the rollers are arranged in a "W" shape, which prolongs the path of the carbon fiber when it is dipped in the dip box; by setting the height of the lower material guide component to be adjustable, the contact time between the carbon fiber and the glue solution can be changed;

[0031] By setting a stirring device that can be lifted and lowered, the glue liquid in the dipping box can be vertically patted while stirring the glue liquid to make it more uniform. By setting the meshing of the driving bevel gear and the two driven bevel gears, the two driven bevel gears can drive the connected stirring blades to rotate in the opposite direction, thereby improving the stirring efficiency.

[0032] By setting up multiple tension rollers of the front traction roller, the carbon fiber can be evenly spread out mechanically. Through the interaction of the mechanical vibration device and the carbon fiber bundle, carbon fiber with uniform thickness and spacing can be obtained, making the subsequent dipping more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a front view of the overall structure of a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device;

[0035] Figure 2 This is the main view of the overall structure of the internal structure of the dipping box;

[0036] Figure 3 It is a side view of the internal structure of the dipping box, the material guide assembly and the stirring mechanism;

[0037] Figure 4 This is the axonometric diagram of the stirring mechanism in the dipping box;

[0038] Figure 5 It is a side view of the housing on the support plate;

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1. Yarn frame; 2. Front traction roller; 3. Yarn spreading device; 4. Material guide assembly; 41. Lifting cylinder; 42. Connecting plate; 43. Rotating shaft; 44. Roller; 5. Glue dipping box; 50. Through hole; 51. Transmission roller; 511. Lower transmission roller; 52. Support plate; 520. Sliding block; 521. Housing; 53. Bearing seat; 54. Driven bevel gear; 55. Cylinder; 56. Round rod; 57. Stirring blade; 58. Active bevel gear; 59. Rotating motor B; 61. Rotating motor A; 62. Round plate; 63. Connecting rod; 64. Lifting rod; 65. Guide sleeve; 7. Glue scraping device; 71. Cross plate; 72. Torsion spring; 73. Scraper; 8. Rear traction roller; 9. Winding device. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0046] like Figure 1-4 As shown, the present invention provides a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device, comprising a creel 1, a front traction roller 2, a yarn spreading device 3, a dipping box 5, a glue scraping device 7, a rear traction roller 8 and a winding device 9 arranged in sequence along the advancing direction of the carbon fiber, wherein the carbon fiber drawn from the creel 1 passes through the front traction roller 2, the yarn spreading device 3, the dipping box 5, the glue scraping device 7, the rear traction roller 8 and is connected to the winding device 9 in sequence;

[0047] The glue dipping box 5 is used to contain glue liquid. The left and right side walls of the glue dipping box 5 are provided with through holes 50 for carbon fiber to enter and exit. A stirring mechanism for processing glue liquid is vertically slidably connected inside the glue dipping box 5. The glue scraping device 7 is located on the right inner wall of the glue dipping box 5.

[0048] The creel 1 is provided with a plurality of unwinding rollers for winding the carbon fiber bundles, and the winding device 9 is provided with a winding roller for winding the carbon fiber bundles, and the winding roller is connected to the output end of the driving motor.

[0049] Optionally, in the above technical solution, the stirring mechanism includes a support plate 52, and two vertically arranged bearing seats 53 are fixedly installed on the front wall of the support plate 52, and driven bevel gears 54 are rotatably connected in the bearing seats 53 through bearings, and the teeth of the two driven bevel gears 54 are arranged opposite to each other;

[0050] A cylinder 55 is fixedly installed in the middle of the lower driven bevel gear 54, and a round rod 56 is fixedly installed in the middle of the upper driven bevel gear 54. The round rod 56 passes through the driven bevel gear 54 and the cylinder 55 in sequence. The outer circumferences of the bottom ends of the cylinder 55 and the round rod 56 are fixedly installed with stirring blades 57.

[0051] A driving bevel gear 58 which is rotatably connected to the support plate 52 and meshes with the two driven bevel gears 54 , and a rotary motor B59 is fixedly mounted on the front wall of the support plate 52 . The output shaft of the rotary motor B59 extends forward and is connected to the driving bevel gear 58 .

[0052] Optionally, in the above technical solution, a rotating motor A61 is fixedly installed on the inner rear wall of the dipping box 5, the output shaft of the rotating motor A61 extends forward, and the end thereof is connected to a circular plate 62, the upper end of a connecting rod 63 is hinged on the circular plate 62, and the lower end of the connecting rod 63 is hinged to the upper end of a lifting rod 64;

[0053] The bottom end of the lifting rod 64 is fixedly connected to the top end of the support plate 52 , and a guide sleeve 65 is fixedly installed on the rear wall of the dipping box 5 , and the lifting rod 64 is vertically slidably connected in the guide sleeve 65 .

[0054] Optionally, in the above technical solution, two sets of material guide components 4 are provided in the dipping box 5, the upper material guide component 4 is fixedly mounted on the front and rear inner walls of the dipping box 5, and the lower material guide component 4 is slidably connected to the front and rear inner walls of the dipping box 5;

[0055] A group of material guiding components 4 includes two front and rear connecting plates 42, and the front and rear connecting plates 42 are rotatably connected with multiple equidistant rotating shafts 43. Rollers 44 are fixedly installed on the outer circumference of the rotating shafts 43, and the multiple rollers 44 are distributed in the shape of the letter "W".

[0056] Optionally, in the above technical solution, a driving roller 51 is rotatably connected in the dipping box 5 and near the through hole 50, and a lower driving roller 511 is rotatably connected below the driving roller 51 in the dipping box 5;

[0057] A lifting cylinder 41 is fixedly installed on both sides of the front inner wall and the rear inner wall of the dipping box 5. The movable end of the lifting cylinder 41 extends downward, and the lower end of the lifting cylinder 41 on the same side is fixedly connected to the two ends of the lower connecting plate 42.

[0058] Optionally, in the above technical solution, a horizontal plate 71 is fixedly installed on the right inner wall of the dipping box 5 and located on the upper and lower sides of the through hole 50, and one end of the torsion spring 72 is fixedly installed on the side of the horizontal plate 71 close to each other;

[0059] One end of a scraper 73 is hinged to the left end of each of the transverse plates 71 . The other ends of the scrapers 73 are close to each other. The scrapers 73 are fixedly connected to the other end of the torsion spring 72 .

[0060] Optionally, in the above technical solution, the front traction roller 2 includes a plurality of tension rollers which are distributed in sequence of height, and a yarn unroller located behind the tension rollers.

[0061] Optionally, a method for using a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device comprises the following steps:

[0062] S1: The carbon fiber installed on the creel 1 is led out at a certain speed through the front traction roller 2 so that multiple layers of carbon fiber can form a plane and be evenly distributed;

[0063] S2: The carbon fibers are uniformly treated by the yarn spreading device 3 and then enter the dipping box 5 for dipping;

[0064] S3: soaking the continuous carbon fiber in the thermoplastic resin in the dipping box 5. When the carbon fiber is in the dipping box 5, the liquid is made uniform by a stirring mechanism;

[0065] S4: After the carbon fiber is immersed in the dipping box 5, the glue on the upper and lower surfaces is scraped off by the scraping device 7, and the carbon fiber is wound on the winding device 9 after passing through the rear traction roller 8;

[0066] S5: The carbon fibers are wound and rolled up by a winding device 9 to obtain a continuous carbon fiber reinforced thermoplastic prepreg tape.

[0067] Furthermore, a liquid adding port is provided on the top wall of the dipping box 5, and a liquid outlet is provided on the bottom wall, and both the liquid adding port and the liquid outlet are provided with one-way valves.

[0068] Furthermore, the present application is applicable to two types of glue:

[0069] 1. Traditional resin glue: pour the finished resin glue into the dipping box 5, and make it uniform in shape in the dipping box 5 through the stirring mechanism of the present application;

[0070] 2. A solution of PEEK powder and chlorophenol (preferably, 1-2 g of PEEK powder is added to 10 g of chlorophenol). First, the chlorophenol is heated to about 180-200°C, and then the PEEK powder is slowly added. The temperature is maintained constant and stirred to gradually disperse the powder in the solvent. After the dispersion is completed, the solution is cooled to room temperature.

[0071] The prepared solution is poured into the dipping box 5, and the stirring mechanism of the present application is used to make the shape of the solution in the dipping box 5 uniform. The liquid level of the glue in the dipping box 5 is slightly lower than the through hole 50.

[0072] Among them, a slider 520 is fixedly installed on the rear wall of the support plate 52, and the slider 520 is vertically slidably connected to the inner rear wall of the dipping box 5.

[0073] There are multiple stirring mechanisms with different heights. Preferably, the stirring mechanisms at both sides are higher than the stirring mechanism in the middle.

[0074] Furthermore, a shell 521 is fixedly mounted on the front wall of the support plate 52, that is, the component located on the front wall of the support plate 52 is always located in the shell 521 to avoid contact with the glue; the bottom wall of the shell 521 is provided with a lower channel for the cylinder 55 to rotate, and a sealing ring is provided between the lower channel and the cylinder 55 to prevent the glue from seeping in.

[0075] The yarn spreader is one or a combination of a mechanical yarn spreader rod, an ultrasonic yarn spreader, an air flow yarn spreader, and an electrostatic yarn spreader.

[0076] The lateral distance between two adjacent rollers 44 is greater than the maximum distance between two stirring blades 57 on a stirring mechanism. That is, when the stirring blade 57 is at the lowest end, it will not touch the prepreg tape, and the stirring blade 57 is always in the glue liquid.

[0077] Working principle:

[0078] When in use: the base cloth can be connected to the front end of the carbon fiber, so that the base cloth passes through the creel 1, the front traction roller 2, the yarn unwinding device 3, and the dipping box 5 in sequence. The base cloth first passes through the through hole 50 on the left side in the dipping box 5, enters between the left driving roller 51 and the lower driving roller 511, and then is successively wound from the roller 44 of the upper material guide assembly 4 to the roller 44 of the lower material guide assembly 4, and finally is wound out from the right end roller 44 of the upper material guide assembly 4, passes between the right driving roller 51 and the lower driving roller 511, passes through two scrapers 73, passes through the right through hole 50, enters the rear traction roller 8, and is wound by the winding device 9;

[0079] The processing method of the glue liquid is as follows: start the rotating motor A61 to drive the circular plate 62 to rotate in situ along its center, drive the upper end of the connecting rod 63 to make a circular motion around the outer side of the center of the circular plate 62, and the lower end of the connecting rod 63 drives the lifting rod 64 to move vertically along the guide sleeve 65, so that the support plate 52 can move up and down; at the same time, start the rotating motor B59 to drive the active bevel gear 58 to rotate in situ, and the active bevel gear 58 drives the two driven bevel gears 54 meshing with it to rotate in situ around the bearing seat 53, thereby driving the cylinder 55 and the round rod 56 to rotate in opposite directions; while the driven bevel gears 54 on the upper and lower sides rotate in reverse in situ, the support plate 52 moves up and down, and the glue liquid is stirred, so that the carbon fiber can be evenly soaked in the glue liquid;

[0080] The carbon fiber soaking path is adjusted by starting the lifting cylinder 41 to slide the two connecting plates 42 at the lower end upward or downward ( Figure 2 In the embodiment, the two connecting plates 42 at the lower end are in the lowest state), thereby driving the roller 44 of the lower end material guide assembly 4 to move up and down, so that the distance between the lower end roller 44 and the upper end roller 44 changes, thereby changing the path length of the carbon fiber in the dipping box 5, and changing the soaking time of the carbon fiber in the dipping box 5 while keeping the carbon fiber transmission speed unchanged;

[0081] The working mode of the scraper device 7 is as follows: the distance between the two scrapers 73 at one end is slightly smaller than the thickness of the carbon fiber after being dipped in glue. When the dipped carbon fiber moves along the forward direction, the two scrapers 73 scrape the glue on the upper and lower surfaces of the carbon fiber.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preparing a continuous carbon fiber reinforced thermoplastic prepreg tape, comprising a creel (1), a front traction roller (2), a yarn unwinding device (3), a dipping box (5), a glue scraping device (7), a rear traction roller (8) and a winding device (9) arranged in sequence along the advancing direction of the carbon fiber, characterized in that: The carbon fiber drawn out from the yarn frame (1) sequentially passes through the front drawing roller (2), the yarn spreading device (3), the glue dipping box (5), the glue scraping device (7), the rear drawing roller (8) and is connected to the winding device (9); The glue dipping box (5) is used to contain glue liquid. Through holes (50) for carbon fiber to enter and exit are provided on the left and right side walls of the glue dipping box (5). A stirring mechanism for processing the glue liquid is vertically slidably connected inside the glue dipping box (5). The glue scraping device (7) is located on the right inner wall of the glue dipping box (5). The stirring mechanism comprises a support plate (52), on the front wall of the support plate (52) are fixedly mounted two vertically arranged bearing seats (53), the bearing seats (53) are both rotatably connected with driven bevel gears (54) via bearings, the teeth of the two driven bevel gears (54) are arranged opposite to each other, and the support plate (52) is vertically slidably connected to the dipping box (5); A driving bevel gear (58) is rotatably connected to the support plate (52) and is meshed with the two driven bevel gears (54). A rotating motor B (59) is fixedly mounted on the front wall of the support plate (52). The output shaft of the rotating motor B (59) extends forward and is connected to the driving bevel gear (58). A rotating motor A (61) is fixedly mounted on the inner rear wall of the dipping box (5); the output shaft of the rotating motor A (61) extends forward and the end thereof is connected to a circular plate (62); the upper end of a connecting rod (63) is hingedly connected to the circular plate (62); the lower end of the connecting rod (63) is hingedly connected to the upper end of a lifting rod (64); The bottom end of the lifting rod (64) is fixedly connected to the top end of the support plate (52), a guide sleeve (65) is fixedly installed on the rear wall of the dipping box (5), and the lifting rod (64) is vertically slidably connected in the guide sleeve (65); A cylinder (55) is fixedly installed in the middle of the driven bevel gear (54) at the lower end, and a round rod (56) is fixedly installed in the middle of the driven bevel gear (54) at the upper end. The round rod (56) passes through the driven bevel gear (54) and the cylinder (55) in sequence. The outer peripheral surfaces of the bottom ends of the cylinder (55) and the round rod (56) are fixedly installed with stirring blades (57); the yarn frame (1) is provided with a plurality of unwinding rollers for winding carbon fiber bundles, and the winding device (9) is provided with a winding roller for winding the carbon fiber bundles, and the winding roller is connected to the output end of the driving motor; A transverse plate (71) is fixedly mounted on the right inner wall of the dipping box (5) and located on the upper and lower sides of the through hole (50), and one end of a torsion spring (72) is fixedly mounted on the mutually adjacent sides of the transverse plate (71); The left end of each of the transverse plates (71) is hinged with one end of a scraper (73), the other ends of the scrapers (73) are close to each other, and the scraper (73) is fixedly connected to the other end of the torsion spring (72).

2. The device for preparing a continuous carbon fiber reinforced thermoplastic prepreg tape according to claim 1, characterized in that: Two groups of material guide components (4) are arranged in the glue dipping box (5), the upper material guide component (4) is fixedly mounted on the front and rear inner walls of the glue dipping box (5), and the lower material guide component (4) is slidably connected to the front and rear inner walls of the glue dipping box (5); A group of the material guide components (4) comprises two connecting plates (42) arranged front and rear, and the two connecting plates (42) are connected to a plurality of equally spaced rotating shafts (43) for co-rotation, and rollers (44) are fixedly mounted on the outer circumference of the rotating shafts (43), and the plurality of rollers (44) are distributed in the shape of the letter "W".

3. The device for preparing a continuous carbon fiber reinforced thermoplastic prepreg tape according to claim 2, characterized in that: A driving roller (51) is rotatably connected to each of the locations in the dipping box (5) and close to the through hole (50); and a lower driving roller (511) is rotatably connected to each of the locations below the driving roller (51) in the dipping box (5); A lifting cylinder (41) is fixedly installed on both the left and right sides of the front inner wall and the rear inner wall of the dipping box (5), and the movable end of the lifting cylinder (41) extends downward, and the lower end of the lifting cylinder (41) on the same side is fixedly connected to the two ends of the connecting plate (42) below.

4. The device for preparing a continuous carbon fiber reinforced thermoplastic prepreg tape according to claim 1, characterized in that: The front traction roller (2) comprises a plurality of tension rollers which are distributed in sequence of height, and a yarn unroller located behind the tension rollers.

5. A method for using a continuous carbon fiber reinforced thermoplastic prepreg tape preparation device, based on the continuous carbon fiber reinforced thermoplastic prepreg tape preparation device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: The carbon fibers installed on the creel (1) are led out at a certain speed through the front traction roller (2) so that multiple layers of carbon fibers can form a plane and be evenly distributed; S2: the carbon fibers are uniformly treated by the yarn spreading device (3) and then enter the dipping box (5) for dipping; S3: soaking the continuous carbon fibers in the thermoplastic resin in the dipping box (5); while the carbon fibers are in the dipping box (5), the liquid is made uniform by a stirring mechanism; S4: After the carbon fiber is immersed in the dipping box (5), the glue on the upper and lower surfaces is scraped off by the glue scraping device (7), and the carbon fiber is wound on the winding device (9) after passing through the rear traction roller (8); S5: The carbon fibers are wound and rolled up by a winding device (9) to obtain a continuous carbon fiber reinforced thermoplastic prepreg tape.

6. The method for using the continuous carbon fiber reinforced thermoplastic prepreg preparation device according to claim 5, characterized in that: The step of making the liquid uniform by the stirring mechanism in S3 comprises: S31: starting the rotary motor A (61) to make the support plate (52) move up and down and the stirring blade (57) move up and down to beat the glue liquid; S32: Start the rotary motor B (59), so that the driven bevel gears (54) on the upper and lower sides drive the stirring blades (57) to rotate in the opposite direction in situ, so as to stir the glue liquid.

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