Device and method for preparing carbon fiber reinforced thermoplastic resin-based composite material

Abstract

According to the technical scheme, the device is characterized by comprising a base, an immersion box is fixedly installed on the top face of the base, a partition plate is fixedly installed in the immersion box, a blocking plate is fixedly installed on one side of the partition plate, and the blocking plate is fixedly installed on the other side of the partition plate; a blocking frame is fixedly mounted in the immersion box; the dipping assembly is arranged in the dipping box and used for carrying out thermoplastic resin dipping on the carbon fibers, the dipping assembly comprises a stirring column, and the stirring column is arranged in the dipping box and used for stirring the carbon fibers; the base, the immersion box, the partition plate, the blocking plate, the blocking frame, a stirring column, a stirring plate, a stabilizing column, a fixing frame, a sealing bearing, a positioning frame, a first gear, a rotating column, a rotating block, a movable column and gear teeth are matched for use, so that the stirring plate can intermittently stir thermoplastic resin conveniently; and the thermoplastic resin can flow in the fiber bundles and among the fiber bundles more uniformly.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of carbon fiber thermoplastic resin matrix composites, and particularly relates to a device and a method for preparing carbon fiber reinforced thermoplastic resin matrix composites. Background Art

[0002] Carbon fiber reinforced thermoplastic resin matrix composites are high-performance materials composed of carbon fibers and various thermoplastic resin matrices. This material combines the high strength and high modulus of carbon fibers and the good processing performance of thermoplastic resins, and is widely used in the fields of aerospace, automotive manufacturing, wind power blades, etc. Carbon fiber reinforced thermoplastic composites have good corrosion resistance and weather resistance and can be used for a long time in harsh environments. Compared with traditional thermosetting composites, CFRP has better recyclability and damage tolerance.

[0003] In the prior art, since carbon fiber reinforced thermoplastic resin matrix composites need to be infiltrated during the preparation process, and the viscosity of thermoplastic resins is relatively high at the melting temperature, it is impossible to well impregnate fiber fabrics, especially continuous carbon fibers. Furthermore, when infiltrating a bundle of carbon fiber filaments, the linear density of large tow carbon fibers is relatively large, and it will be very difficult to completely impregnate the carbon fiber bundle, resulting in uneven distribution of the matrix material and the appearance of pores, which will subsequently affect the impregnation effect of carbon fibers. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a device and a method for preparing carbon fiber reinforced thermoplastic resin matrix composites to solve the problems raised in the above background art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A device and method for preparing a carbon fiber reinforced thermoplastic resin matrix composite material, including a base, on the top surface of the base is fixedly installed an immersion tank, inside the immersion tank is fixedly installed a partition plate, on one side of the partition plate is fixedly installed a baffle plate, and inside the immersion tank is fixedly installed a baffle frame; an impregnation assembly, arranged inside the immersion tank, for impregnating carbon fibers with thermoplastic resin, the impregnation assembly includes: a stirring column, the stirring column is arranged inside the immersion tank, on the outer circumferential wall surface of the stirring column are fixedly installed a number of stirring plates, at one end of the stirring column is fixedly installed a stabilizing column, on one side of the partition plate is opened a rotation hole, on one side of the partition plate is fixedly installed a fixed frame, the inner circumferential wall surface of the fixed frame is fixedly sleeved with a sealing bearing, the stabilizing column is movably sleeved with the rotation hole, and the stabilizing column is fixedly sleeved with the inner circumferential wall surface of the inner ring of the sealing bearing, on one side of the partition plate is fixedly installed a positioning frame, on one side of the positioning frame are opened a stabilizing hole and a movable hole, on one side of the positioning frame is arranged a first gear, the first gear is fixedly installed with the stabilizing column, on one side of the first gear is fixedly installed a rotating column, the rotating column is movably sleeved with the stabilizing hole, on one side of the positioning frame is arranged a rotating block, on the outer circumferential wall surface of the rotating block are fixedly installed a number of teeth, the teeth are meshed and connected with the first gear, on one side of the rotating block is fixedly installed a movable column, the movable column is movably sleeved with the movable hole; on one side inside the immersion tank is arranged a heating-up assembly for preventing the thermoplastic resin from cooling; on the top surface of the base is arranged a shaping assembly for drying the impregnated carbon fibers; on the top surface of the base is arranged a conveying assembly for conveying the carbon fibers; By adopting the above technical solution, through the arranged stirring plate, when the staff impregnates carbon fiber, first, the thermoplastic resin is placed inside the immersion tank, and then the carbon fiber filaments enter the inside of the immersion tank, so that the carbon fiber is immersed in the thermoplastic resin. Then, the staff rotates the rotating block to drive the movable column and the gear teeth to rotate. Furthermore, through the meshing of the gear teeth with the first gear, the first gear and the rotating column can be driven to rotate. Then, the first gear drives the stabilizing column, the stirring column and the stirring plate to rotate inside the immersion tank, so as to make the stirring plate stir the thermoplastic resin, thereby facilitating the promotion of the fluidity of the thermoplastic resin and enhancing its penetration effect. Since the gear teeth do not surround the rotating block but form an incomplete gear with the rotating block, when the gear teeth contact and mesh with the first gear, the first gear will be driven to rotate. After the gear teeth rotate away from the tooth gap of the first gear, the rotation of the first gear will be released, and the stirring column, the stirring plate and the stabilizing column will stop rotating. With the continuous rotation of the rotating block and the gear teeth, the gear teeth can intermittently contact the first gear to make it rotate, so as to facilitate the intermittent stirring of the thermoplastic resin by the stirring plate. Through intermittent stirring, the flow of the thermoplastic resin inside and between the fiber bundles can be made more uniform, and the flow of the thermoplastic resin helps the resin to better fill the gaps between the fibers, reducing the formation and entrapment of bubbles. At the same time, intermittent stirring can prevent continuous stirring from causing excessive shear of the resin.

[0006] Preferably, the temperature-raising component includes: a temperature-raising tank, which is opened on one side inside the immersion tank. A heating rod is fixedly installed inside the temperature-raising tank, and a heat-conducting plate is fixedly installed inside the temperature-raising tank. A circular through-hole is opened on one side inside the immersion tank, and the inner wall surface of the circular through-hole is fixedly sleeved with a liquid temperature sensor. A PLC controller is fixedly installed on one side of the immersion tank. The PLC controller is electrically connected to the liquid temperature sensor, and the PLC controller is electrically connected to the heating rod.

[0007] By adopting the above technical solution, through the arranged liquid temperature sensor, the temperature of the thermoplastic resin inside the immersion tank can be detected by the liquid temperature sensor. When the temperature of the thermoplastic resin decreases, the liquid temperature sensor will transmit the temperature signal to the PLC controller. After receiving the signal, the PLC controller will start the heating rod, and then the heating rod will heat up and conduct heat to the inside of the immersion tank through the heat-conducting plate, so as to heat the thermoplastic resin and prevent the viscosity of the thermoplastic resin from increasing due to its low temperature. High-viscosity resin is difficult to fully penetrate into the carbon fiber bundle during the impregnation process, resulting in poor impregnation effect.

[0008] Preferably, the shaping component includes: a support frame fixedly installed on the top surface of the base. Two drying columns are arranged inside the support frame. Two rotation holes are respectively formed on both sides of the support frame. The drying columns are movably sleeved in the rotation holes. A heating groove is formed on one side of the drying column. An electric heating wire is fixedly installed inside the heating groove. A blocking ring is fixedly sleeved on the inner circular wall surface of the heating groove.

[0009] By adopting the above technical solution, through the arranged electric heating wire, after the carbon fiber frame is impregnated inside the immersion tank, by passing it through between the two drying columns. At the same time, by using the electric heating wire, the electric heating wire heats up inside the heating groove and conducts to the surface of the drying column, so that the temperature of the surface of the drying column rises. Then, after the carbon fiber enters between the two drying columns, the carbon fiber will contact the drying column, which is convenient for the resin on the carbon fiber to be fully cured and helps to fix the shape of the carbon fiber.

[0010] Preferably, the conveying component includes: a fixed frame fixedly installed on the top surface of the base. Positioning holes are respectively formed on both sides of the fixed frame. Activity grooves are respectively formed on both sides inside the fixed frame. A transmission column is movably sleeved in the inner circular wall surfaces of the two positioning holes. A second gear is fixedly installed at one end of the transmission column. A driving motor is fixedly installed on one side of the fixed frame. The driving shaft of the driving motor is fixedly installed with the other end of the transmission column. A conveying wheel is movably sleeved in the inner circular wall surfaces of the two activity grooves. A third gear is fixedly installed at one end of the conveying wheel. The third gear is meshed and connected with the second gear.

[0011] By adopting the above technical solution, through the arranged conveying wheel, before the carbon fiber enters the immersion tank, by passing it through between the conveying wheel and the transmission column. Then, by using the driving motor, the rotation of the driving shaft of the driving motor will drive the transmission column and the second gear to rotate. When the second gear rotates, it will meshingly drive the third gear and the conveying wheel to rotate, which is convenient for conveying the carbon fiber.

[0012] Preferably, two auxiliary columns and two limiting columns are fixedly installed on one side inside the fixed frame. An auxiliary cylinder is movably sleeved on the outer circular wall surface of the auxiliary column. A support cylinder is movably sleeved on the outer circular wall surface of the limiting column. A number of combing grooves are formed on the outer circular wall surfaces of the auxiliary cylinder and the support cylinder. Each single auxiliary cylinder and the support cylinder form a group.

[0013] By adopting the above technical solution, through the arranged auxiliary cylinder, the two groups of auxiliary cylinders and support cylinders are arranged at different heights. Then, the carbon fiber is passed through between the auxiliary cylinder and the support cylinder and bypassed around the two groups of auxiliary cylinders and support cylinders, which can assist in conveying the carbon fiber and prevent the carbon fiber from dropping during movement.

[0014] Preferably, a fixing column is fixedly installed on one side inside the fixing frame, and a plurality of carding teeth are fixedly installed on the outer circumferential wall surface of the fixing column.

[0015] By adopting the above technical solution, through the arranged carding teeth, after the carbon fiber moves out between the auxiliary cylinder and the support cylinder, it passes through the inside of the carding teeth. The carbon fiber filaments can be carded by multiple carding teeth before entering the dipping tank, preventing the carbon fiber filaments from crossing and knotting with each other and affecting the impregnation of the carbon fiber.

[0016] Preferably, two limiting frames are fixedly installed on the top surface of the base. A distribution column is arranged between the two limiting frames. A plurality of dispersion grooves are formed on the outer circumferential wall surface of the distribution column. A conveying hole is formed on one side of the limiting frame, and the conveying hole is movably sleeved with the distribution column.

[0017] By adopting the above technical solution, through the arranged dispersion grooves, before the carbon fiber moves to the edge of the dipping tank and enters the inside of the dipping tank, several carbon fiber filaments will be distributed in the plurality of dispersion grooves, preventing the carbon fiber from crossing before entering the inside of the dipping tank.

[0018] Preferably, a support platform is fixedly installed on the top surface of the base. A plurality of vibration grooves are formed on the top surface of the support platform. A vibration column is movably sleeved on the inner circumferential wall surface of the vibration groove. A vibration table is fixedly installed on the top surfaces of the plurality of vibration columns. An installation hole is formed on one side of the vibration table. A vibration motor is fixedly installed on the inner top surface of the installation hole. A fixing ring is fixedly sleeved on the outer circumferential wall surface of the vibration column. A spring is movably sleeved on the outer circumferential wall surface of the vibration column. The top surface of the spring is fixedly installed with the fixing ring, and the bottom surface of the spring is fixedly installed with the support platform. A limiting block is fixedly installed on the bottom surface of the vibration column. A limiting groove is formed on the inner circumferential wall surface of the vibration groove, and the limiting groove is movably sleeved with the limiting block.

[0019] By adopting the above technical solution, through the arranged vibration motor, when the carbon fiber filaments move from the fixing frame to the surface of the distribution column, they will pass through the surface of the vibration table. Then, the staff uses the vibration motor, and the vibration generated by the vibration motor will drive the vibration column, the vibration table, the fixing ring, the spring and the limiting block to vibrate, and transmit the vibration to the carbon fiber filaments, thereby facilitating the vibration and spreading of the carbon fiber filaments and reducing the agglomeration of the carbon fiber filaments.

[0020] Preferably, an installation frame is fixedly installed on one side inside the base, and a stepping motor is fixedly sleeved inside the installation frame. The driving shaft of the stepping motor is fixedly installed with the movable column.

[0021] By adopting the above technical solution, to drive the movable column and the rotating block to rotate.

[0022] The present invention also provides a method for preparing a carbon fiber reinforced thermoplastic resin matrix composite material, and the specific steps are as follows: S1: By passing the carbon fiber through between the conveying wheel and the conveying column, and then driving the conveying column and the second gear to rotate by rotating the driving shaft of the driving motor, when the second gear rotates, it will engage and drive the third gear and the conveying wheel to rotate, so as to achieve the first step of conveying the carbon fiber; S2: After the carbon fiber moves out between the auxiliary cylinder and the support cylinder, it passes through the inside of the comb teeth. Through a plurality of comb teeth, the carbon fiber filaments can be combed before entering the inside of the immersion tank, so as to achieve the second step of preventing the carbon fiber filaments from crossing and knotting each other, which affects the impregnation of the carbon fiber; S3: When the carbon fiber moves to the edge of the immersion tank and before entering the inside of the immersion tank, several carbon fiber filaments will be distributed inside a plurality of dispersion grooves, so as to achieve the third step of preventing the carbon fiber from crossing before entering the inside of the immersion tank; S4: When the carbon fiber filaments move from the fixing frame to the surface of the distribution column, they will pass through the surface of the vibrating table. Then, by using the vibrating motor, the vibration generated by the vibrating motor will drive the vibrating column, the vibrating table, the fixing ring, the spring and the limiting block to vibrate, and the vibration will be transmitted to the carbon fiber filaments, so as to achieve the fourth step of facilitating the vibrating and spreading of the carbon fiber filaments and reducing the agglomeration of the carbon fiber filaments; S5: When the carbon fiber is impregnated, first put the thermoplastic resin into the inside of the immersion tank, and then make the carbon fiber filaments enter the inside of the immersion tank, so that the carbon fiber is immersed in the thermoplastic resin. By rotating the rotating block and driving the movable column and the gear teeth to rotate, and then through the engagement of the gear teeth with the first gear, the first gear and the rotating column can be driven to rotate. Then, the first gear will drive the stabilizing column, the stirring column and the stirring plate to rotate inside the immersion tank, so as to make the stirring plate stir the thermoplastic resin, so as to achieve the fifth step of facilitating the fluidity of the thermoplastic resin and enhancing its penetration effect; S6: After the carbon fiber rack is impregnated inside the immersion tank, pass it through between two drying columns. At the same time, by using the electric heating wire, let the electric heating wire heat up inside the heating groove and conduct to the surface of the drying column, so that the temperature of the surface of the drying column rises, so as to achieve the sixth step of facilitating the full curing of the resin on the carbon fiber and helping to fix the shape of the carbon fiber.

[0023] In summary, the present invention mainly has the following beneficial effects: By the mutual cooperation of the provided base, immersion tank, partition board, baffle plate, baffle rack, stirring column, stirring plate, stabilizing column, fixed frame, sealing bearing, positioning rack, first gear, rotating column, rotating block, movable column and gear teeth, the rotating block is rotated to drive the movable column and gear teeth to rotate. Furthermore, through the meshing of the gear teeth with the first gear, the first gear and the rotating column can be driven to rotate. Then, the first gear drives the stabilizing column, stirring column and stirring plate to rotate inside the immersion tank, facilitating the intermittent stirring of the thermoplastic resin by the stirring plate so as to perform the initial pre-impregnation on the carbon fiber. Through the intermittent stirring, the flow of the thermoplastic resin inside and between the fiber bundles can be made more uniform, and the flow of the thermoplastic resin helps the resin to better fill the gaps between the fibers, reducing the formation and entrapment of bubbles. At the same time, the intermittent stirring can prevent the continuous stirring from causing excessive shearing of the resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the immersion tank of the present invention; Figure 3 is a structural schematic diagram of the partition board of the present invention; Figure 4 is Figure 3 a partial structural schematic diagram of A in Figure 5 is a structural schematic diagram of the heat conducting plate of the present invention; Figure 6 is a structural schematic diagram of the support frame of the present invention; Figure 7 is a structural schematic diagram of the fixing frame of the present invention; Figure 8 is a structural schematic diagram of the limiting column of the present invention; Figure 9 is a structural schematic diagram of the limiting rack of the present invention; Figure 10 is a structural schematic diagram of the support platform of the present invention; Figure 11 is a structural schematic diagram of the vibration tank of the present invention.

[0025] Reference numerals: 1, base; 2, immersion tank; 3, partition plate; 4, baffle plate; 5, baffle frame; 6, stirring column; 7, stirring plate; 8, stabilizing column; 9, rotating hole; 10, fixed frame; 11, sealing bearing; 12, positioning frame; 13, stabilizing hole; 14, movable hole; 15, first gear; 16, rotating column; 17, rotating block; 18, movable column; 19, tooth; 20, mounting frame; 21, stepper motor; 22, heating tank; 23, heating rod; 24, heat conducting plate; 25, liquid temperature sensor; 26, support frame; 27, drying column; 28, rotating hole; 29, heating groove; 30, electric heating wire; 31, baffle ring; 32, fixed frame; 33, positioning hole; 34, conveying column; 35, second gear; 36, driving motor; 37, movable groove; 38, conveying wheel; 39, third gear; 40, auxiliary column; 41, limiting column; 42, auxiliary cylinder; 43, support cylinder; 44, combing groove; 45, fixed column; 46, combing tooth; 47, limiting frame; 48, conveying hole; 49, distributing column; 50, dispersion groove; 51, support table; 52, vibration groove; 53, vibration column; 54, vibration table; 55, mounting hole; 56, vibration motor; 57, fixed ring; 58, spring; 59, limiting block; 60, limiting groove. Detailed implementation mode

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, A device and method for preparing a carbon fiber reinforced thermoplastic resin matrix composite, including a base 1. On the top surface of the base 1, an immersion tank 2 is fixedly installed. Inside the immersion tank 2, a partition plate 3 is fixedly installed. On one side of the partition plate 3, a baffle plate 4 is fixedly installed. Inside the immersion tank 2, a blocking frame 5 is fixedly installed. Inside the immersion tank 2, an impregnation assembly is provided for impregnating carbon fibers with thermoplastic resin. The impregnation assembly includes: a stirring column 6. The stirring column 6 is arranged inside the immersion tank 2. On the outer circumferential wall surface of the stirring column 6, a number of stirring plates 7 are fixedly installed. At one end of the stirring column 6, a stabilizing column 8 is fixedly installed. On one side of the partition plate 3, a rotation hole 9 is opened. On one side of the partition plate 3, a fixed frame 10 is fixedly installed. The inner circumferential wall surface of the fixed frame 10 is fixedly sleeved with a sealing bearing 11. The stabilizing column 8 is movably sleeved with the rotation hole 9, and the stabilizing column 8 is fixedly sleeved with the inner circumferential wall surface of the inner ring of the sealing bearing 11. On one side of the partition plate 3, a positioning frame 12 is fixedly installed. On one side of the positioning frame 12, a stabilizing hole 13 and a movable hole 14 are opened. On one side of the positioning frame 12, a first gear 15 is provided. The first gear 15 is fixedly installed with the stabilizing column 8. On one side of the first gear 15, a rotating column 16 is fixedly installed. The rotating column 16 is movably sleeved with the stabilizing hole 13. On one side of the positioning frame 12, a rotating block 17 is provided. On the outer circumferential wall surface of the rotating block 17, a number of teeth 19 are fixedly installed. The teeth 19 are meshed with the first gear 15. On one side of the rotating block 17, a movable column 18 is fixedly installed. The movable column 18 is movably sleeved with the movable hole 14. On one side inside the immersion tank 2, a temperature-raising assembly is provided for preventing the thermoplastic resin from cooling. On the top surface of the base 1, a shaping assembly is provided for drying the impregnated carbon fibers. On the top surface of the base 1, a conveying assembly is provided for conveying the carbon fibers. Through the provided stirring plates 7, when the staff impregnates the carbon fibers, first, the thermoplastic resin is put into the immersion tank 2, and then the carbon fiber filaments enter the immersion tank 2, making the carbon fibers immerse in the thermoplastic resin. Then, the staff rotates the rotating block 17 to drive the movable column 18 and the teeth 19 to rotate. Then, through the meshing of the teeth 19 with the first gear 15, the first gear 15 and the rotating column 16 can be driven to rotate. Then, the first gear 15 drives the stabilizing column 8, the stirring column 6, and the stirring plates 7 to rotate inside the immersion tank 2, so that the stirring plates 7 can stir the thermoplastic resin, thereby facilitating the promotion of the fluidity of the thermoplastic resin and enhancing its penetration effect. Since the teeth 19 do not surround the rotating block 17 but form an incomplete gear with the rotating block 17, when the teeth 19 contact and mesh with the first gear 15, they will drive the first gear 15 to rotate. After the teeth 19 rotate away from the tooth gaps of the first gear 15, the rotation of the first gear 15 will be released, and the stirring column 6, the stirring plates 7, and the stabilizing column 8 will stop rotating. With the continuous rotation of the rotating block 17 and the teeth 19, the teeth 19 can intermittently contact the first gear 15 and make it rotate, so as to facilitate the intermittent stirring of the thermoplastic resin by the stirring plates 7.By intermittent stirring, the flow of the thermoplastic resin can be made more uniform within and between the fiber bundles, and the flow of the thermoplastic resin helps the resin to better fill the voids between the fibers, reducing the formation and entrapment of air bubbles. At the same time, intermittent stirring can prevent continuous stirring from causing excessive shearing of the resin.

[0028] Example 2: Based on the above Example 1, referring to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 ,the heating component includes a heating tank 22, the heating tank 22 is opened on one side inside the immersion tank 2, a heating rod 23 is fixedly installed inside the heating tank 22, a heat conduction plate 24 is fixedly installed inside the heating tank 22, a circular through hole is opened on one side inside the immersion tank 2, and the inner wall surface of the circular through hole is fixedly sleeved with a liquid temperature sensor 25. One side of the immersion tank 2 is fixedly installed with a PLC controller, the PLC controller is electrically connected to the liquid temperature sensor 25, and the PLC controller is electrically connected to the heating rod 23. By setting the liquid temperature sensor 25, the liquid temperature sensor 25 can detect the temperature of the thermoplastic resin inside the immersion tank 2. When the temperature of the thermoplastic resin decreases, the liquid temperature sensor 25 will transmit the temperature signal to the PLC controller. After receiving the signal, the PLC controller will start the heating rod 23, and then the heating rod 23 will heat up and conduct heat to the inside of the immersion tank 2 through the heat conduction plate 24, so as to heat the thermoplastic resin and prevent the viscosity of the thermoplastic resin from increasing due to its low temperature. High-viscosity resin is difficult to fully penetrate into the carbon fiber bundle during impregnation, resulting in poor impregnation effect. The shaping component includes a support frame 26, the support frame 26 is fixedly installed on the top surface of the base 1, two drying columns 27 are arranged inside the support frame 26, two rotation holes 28 are respectively opened on both sides of the support frame 26, the drying columns 27 are movably sleeved with the rotation holes 28, a heating groove 29 is opened on one side of the drying column 27, an electric heating wire 30 is fixedly installed inside the heating groove 29, and a blocking ring 31 is fixedly sleeved on the inner wall surface of the heating groove 29. By setting the electric heating wire 30, after the carbon fiber frame is impregnated inside the immersion tank 2, it is passed through between the two drying columns 27. At the same time, by using the electric heating wire 30, the electric heating wire 30 is heated up inside the heating groove 29 and conducted to the surface of the drying column 27, so that the temperature of the surface of the drying column 27 increases. Then, after the carbon fiber enters between the two drying columns 27, the carbon fiber will contact the drying column 27, which is convenient for the resin on the carbon fiber to be fully cured and helps to fix the shape of the carbon fiber.

[0029] Example 3: Based on the above Example 1 or 2, referring to Figure 1 、 Figure 7 and Figure 8, the conveying component includes a fixed frame 32, the fixed frame 32 is fixedly installed on the top surface of the base 1, positioning holes 33 are respectively formed on both sides of the fixed frame 32, movable grooves 37 are respectively formed on both inner sides of the fixed frame 32, a transmission column 34 is movably sleeved on the inner circular wall surfaces of the two positioning holes 33, a second gear 35 is fixedly installed at one end of the transmission column 34, a driving motor 36 is fixedly installed on one side of the fixed frame 32, and the driving shaft of the driving motor 36 is fixedly installed with the other end of the transmission column 34. A conveying wheel 38 is movably sleeved on the inner circular wall surfaces of the two movable grooves 37, a third gear 39 is fixedly installed at one end of the conveying wheel 38, and the third gear 39 is meshed and connected with the second gear 35. By providing the conveying wheel 38, before the carbon fiber enters the inside of the immersion tank 2, by making it pass through between the conveying wheel 38 and the transmission column 34, and then by using the driving motor 36, the rotation of the driving shaft of the driving motor 36 will drive the transmission column 34 and the second gear 35 to rotate. When the second gear 35 rotates, it will meshingly drive the third gear 39 and the conveying wheel 38 to rotate, so as to facilitate the conveying of the carbon fiber. Two auxiliary columns 40 and two limiting columns 41 are fixedly installed on one inner side of the fixed frame 32. An auxiliary cylinder 42 is movably sleeved on the outer circular wall surface of the auxiliary column 40, and a support cylinder 43 is movably sleeved on the outer circular wall surface of the limiting column 41. A number of combing grooves 44 are formed on the outer circular wall surfaces of the auxiliary cylinder 42 and the auxiliary cylinder 42. Each single auxiliary cylinder 42 and the support cylinder 43 form a group. By providing the auxiliary cylinder 42, the two groups of auxiliary cylinders 42 and support cylinders 43 are arranged at different heights. Then the carbon fiber is passed through between the auxiliary cylinder 42 and the support cylinder 43 and bypassed around the two groups of auxiliary cylinders 42 and support cylinders 43, so as to assist the conveying of the carbon fiber and prevent the carbon fiber from falling when moving. A fixed column 45 is fixedly installed on one inner side of the fixed frame 32, and a number of combing teeth 46 are fixedly installed on the outer circular wall surface of the fixed column 45. By providing the combing teeth 46, after the carbon fiber moves out between the auxiliary cylinder 42 and the support cylinder 43, it is passed through the inside of the combing teeth 46. The carbon fiber filaments can be combed by the multiple combing teeth 46 before entering the inside of the immersion tank 2 to prevent the carbon fiber filaments from crossing and knotting with each other, which affects the impregnation of the carbon fiber.

[0030] Example 4: Based on the above Examples 1, 2 or 3, refer to Figure 1 , Figure 3 , Figure 4 , Figure 9 , Figure 10 and Figure 11, two restraint frames 47 are fixedly installed on the top surface of the base 1. A distribution column 49 is arranged between the two restraint frames 47. A plurality of dispersion grooves 50 are formed on the outer circumferential wall surface of the distribution column 49. A conveying hole 48 is formed on one side of the restraint frame 47. The conveying hole 48 is movably sleeved with the distribution column 49. Through the arranged dispersion grooves 50, before the carbon fiber moves to the edge of the immersion tank 2 and enters the interior of the immersion tank 2, a plurality of carbon fiber filaments will be distributed inside the plurality of dispersion grooves 50, preventing the carbon fibers from crossing before entering the interior of the immersion tank 2. A support platform 51 is fixedly installed on the top surface of the base 1. A plurality of vibration grooves 52 are formed on the top surface of the support platform 51. A vibration column 53 is movably sleeved on the inner circumferential wall surface of the vibration groove 52. A vibration table 54 is fixedly installed on the top surfaces of the plurality of vibration columns 53. An installation hole 55 is formed on one side of the vibration table 54. A vibration motor 56 is fixedly installed on the inner top surface of the installation hole 55. A fixing ring 57 is fixedly sleeved on the outer circumferential wall surface of the vibration column 53. A spring 58 is movably sleeved on the outer circumferential wall surface of the vibration column 53. The top surface of the spring 58 is fixedly installed with the fixing ring 57. The bottom surface of the spring 58 is fixedly installed with the support platform 51. A limiting block 59 is fixedly installed on the bottom surface of the vibration column 53. A limiting groove 60 is formed on the inner circumferential wall surface of the vibration groove 52. The limiting groove 60 is movably sleeved with the limiting block 59. Through the arranged vibration motor 56, when the carbon fiber filaments move from the fixing frame 32 to the surface of the distribution column 49, they will pass through the surface of the vibration table 54. Then, the staff uses the vibration motor 56. The vibration generated by the vibration motor 56 will drive the vibration column 53, the vibration table 54, the fixing ring 57, the spring 58 and the limiting block 59 to vibrate, and transmit to the carbon fiber filaments, thereby facilitating the vibration and spreading of the carbon fiber filaments and reducing the agglomeration of the carbon fiber filaments. An installation frame 20 is fixedly installed on one side inside the base 1. A stepping motor 21 is fixedly sleeved inside the installation frame 20. The driving shaft of the stepping motor 21 is fixedly installed with the movable column 18.

[0031] Example 5: Based on the above Examples 1, 2, 3 or 4, refer to Figures 1 - 11 , the present invention also provides a preparation method for a carbon fiber reinforced thermoplastic resin matrix composite material, and the specific steps are as follows: S1: By passing the carbon fiber through between the conveying wheel 38 and the conveying column 34, and then by rotating the driving shaft of the driving motor 36 to drive the conveying column 34 and the second gear 35 to rotate, when the second gear 35 rotates, it will meshingly drive the third gear 39 and the conveying wheel 38 to rotate, so as to achieve the first step of conveying the carbon fiber; S2: After the carbon fiber moves out between the auxiliary cylinder 42 and the support cylinder 43, pass it through the inside of the combing teeth 46. Through the plurality of combing teeth 46, the carbon fiber filaments can be combed before entering the interior of the immersion tank 2, so as to achieve the second step of preventing the carbon fiber filaments from crossing and knotting each other and affecting the impregnation of the carbon fiber; S3: Before the carbon fiber moves to the edge of the immersion tank 2 and enters the interior of the immersion tank 2, several carbon fiber filaments will be distributed inside multiple dispersion grooves 50, which can achieve the third step of preventing the carbon fiber from crossing before entering the interior of the immersion tank 2; S4: When the carbon fiber filaments move from the fixing frame 32 to the surface of the distribution column 49, they will pass through the surface of the vibrating table 54. Then, by using the vibrating motor 56, the vibration generated by the vibrating motor 56 will drive the vibrating column 53, the vibrating table 54, the fixing ring 57, the spring 58 and the limiting block 59 to vibrate, and the vibration will be transmitted to the carbon fiber filaments, which can achieve the fourth step of facilitating the vibrating and spreading of the carbon fiber filaments and reducing the agglomeration of the carbon fiber filaments; S5: When the carbon fiber is impregnated, first, the thermoplastic resin is placed inside the immersion tank 2, and then the carbon fiber filaments enter the interior of the immersion tank 2, so that the carbon fiber is immersed in the thermoplastic resin. By rotating the rotating block 17 and driving the movable column 18 and the gear teeth 19 to rotate, and then through the meshing of the gear teeth 19 with the first gear 15, the first gear 15 and the rotating column 16 can be driven to rotate. Then, the first gear 15 will drive the stabilizing column 8, the stirring column 6 and the stirring plate 7 to rotate inside the immersion tank 2, so that the stirring plate 7 can stir the thermoplastic resin, which can achieve the fifth step of facilitating the fluidity of the thermoplastic resin and enhancing its penetration effect; S6: After the carbon fiber frame is impregnated inside the immersion tank 2, it is passed through between the two drying columns 27. At the same time, by using the electric heating wire 30, the electric heating wire 30 is heated up inside the heating groove 29 and conducted to the surface of the drying column 27, so that the temperature of the surface of the drying column 27 rises, which can achieve the sixth step of facilitating the full curing of the resin on the carbon fiber and helping to fix the shape of the carbon fiber.

[0032] Working principle: Please refer to Figures 1 - 11As shown, through the arranged stirring plate 7, when the staff impregnates carbon fiber, first, the thermoplastic resin is put into the inside of the immersion tank 2, and then the carbon fiber filaments enter the inside of the immersion tank 2, so that the carbon fiber is immersed in the thermoplastic resin. Then, the staff rotates the rotating block 17 to drive the movable column 18 and the gear teeth 19 to rotate. Furthermore, through the engagement of the gear teeth 19 with the first gear 15, the first gear 15 and the rotating column 16 can be driven to rotate. Then, the first gear 15 drives the stabilizing column 8, the stirring column 6 and the stirring plate 7 to rotate inside the immersion tank 2, so as to make the stirring plate 7 stir the thermoplastic resin, thereby facilitating the promotion of the fluidity of the thermoplastic resin and enhancing its penetration effect. Since the gear teeth 19 do not surround the rotating block 17 but form an incomplete gear with the rotating block 17, when the gear teeth 19 contact and engage with the first gear 15, the first gear 15 will be driven to rotate. After the gear teeth 19 rotate away from the tooth gap of the first gear 15, the rotation of the first gear 15 will be released, and the stirring column 6, the stirring plate 7 and the stabilizing column 8 will stop rotating. With the continuous rotation of the rotating block 17 and the gear teeth 19, the gear teeth 19 can intermittently contact the first gear 15 to make it rotate, so as to facilitate the intermittent stirring of the thermoplastic resin by the stirring plate 7. Through the intermittent stirring, the flow of the thermoplastic resin inside and between the fiber bundles can be made more uniform, and the flow of the thermoplastic resin helps the resin to better fill the gaps between the fibers, reducing the formation and entrapment of bubbles. At the same time, the intermittent stirring can prevent the continuous stirring from causing excessive shear of the resin.

[0033] Through the arranged liquid temperature sensor 25, the temperature of the thermoplastic resin inside the immersion tank 2 can be detected by the liquid temperature sensor 25. When the temperature of the thermoplastic resin decreases, the liquid temperature sensor 25 will transmit the temperature signal to the PLC controller. After receiving the signal, the PLC controller will start the heating rod 23. Subsequently, the heating rod 23 heats up and conducts heat to the inside of the immersion tank 2 through the heat conducting plate 24, so as to heat the thermoplastic resin and prevent the viscosity of the thermoplastic resin from increasing due to its low temperature. The high-viscosity resin is difficult to fully penetrate into the carbon fiber bundle during the impregnation process, resulting in poor impregnation effect.

[0034] Through the arranged electric heating wire 30, after the carbon fiber frame is impregnated inside the immersion tank 2, it is passed through between the two drying columns 27. At the same time, by using the electric heating wire 30, the electric heating wire 30 heats up inside the heating groove 29 and conducts heat to the surface of the drying column 27, so that the temperature of the surface of the drying column 27 rises. Then, after the carbon fiber enters between the two drying columns 27, the carbon fiber will contact the drying column 27, so as to facilitate the full curing of the resin on the carbon fiber and help to fix the shape of the carbon fiber.

[0035] Through the provided conveying wheel 38, before the carbon fiber enters the interior of the immersion tank 2, by making it pass between the conveying wheel 38 and the transmission column 34, and then by using the driving motor 36, the rotation of the driving shaft of the driving motor 36 will drive the transmission column 34 and the second gear 35 to rotate. When the second gear 35 rotates, it will meshingly drive the third gear 39 and the conveying wheel 38 to rotate, thereby facilitating the conveying of the carbon fiber.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing carbon fiber reinforced thermoplastic resin-based composite materials, characterized in that: include: A base (1), an immersion box (2) being fixedly mounted on the top surface of the base (1), a partition plate (3) being fixedly mounted inside the immersion box (2), a blocking plate (4) being fixedly mounted on one side of the partition plate (3), and a blocking frame (5) being fixedly mounted inside the immersion box (2); An impregnation assembly is arranged inside the impregnation box (2) and is used to impregnate carbon fibers with thermoplastic resin. The impregnation assembly comprises: a stirring column (6), the stirring column (6) is arranged inside the impregnation box (2), a plurality of stirring plates (7) are fixedly mounted on the outer circumferential wall surface of the stirring column (6), a stabilizing column (8) is fixedly mounted on one end of the stirring column (6), a rotating hole (9) is opened on one side of the partition plate (3), a fixing frame (10) is fixedly mounted on one side of the partition plate (3), a sealing bearing (11) is fixedly sleeved on the inner circumferential wall surface of the fixing frame (10), the stabilizing column (8) is movably sleeved on the rotating hole (9), the stabilizing column (8) is fixedly sleeved on the inner circumferential wall surface of the inner ring of the sealing bearing (11), and one side of the partition plate (3) is fixed A positioning frame (12) is installed, and a stabilizing hole (13) and a movable hole (14) are opened on one side of the positioning frame (12); a first gear (15) is arranged on one side of the positioning frame (12), and the first gear (15) is fixedly installed with the stabilizing column (8); a rotating column (16) is fixedly installed on one side of the first gear (15), and the rotating column (16) is movably sleeved with the stabilizing hole (13); a rotating block (17) is arranged on one side of the positioning frame (12), and a plurality of gear teeth (19) are fixedly installed on the outer circumferential wall surface of the rotating block (17), and the gear teeth (19) are meshingly connected with the first gear (15); a movable column (18) is fixedly installed on one side of the rotating block (17), and the movable column (18) is movably sleeved with the movable hole (14); A temperature-raising component for preventing the thermoplastic resin from cooling is provided on one side of the interior of the immersion box (2); The top surface of the base (1) is provided with a shaping component for drying the impregnated carbon fibers; The top surface of the base (1) is provided with a conveying component for conveying carbon fibers.

2. A carbon fiber reinforced thermoplastic resin-based composite material preparation device according to claim 1, characterized in that: The temperature raising component comprises: A temperature rising tank (22), the temperature rising tank (22) being opened on one side of the interior of the immersion box (2), a heating rod (23) being fixedly installed inside the temperature rising tank (22), a heat conducting plate (24) being fixedly installed inside the temperature rising tank (22), a circular through hole being opened on one side of the interior of the immersion box (2), a liquid temperature sensor (25) being fixedly sleeved on the inner wall surface of the circular through hole, a PLC controller being fixedly installed on one side of the immersion box (2), the PLC controller being electrically connected to the liquid temperature sensor (25), and the PLC controller being electrically connected to the heating rod (23).

3. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 2, characterized in that: The shaping component comprises: A support frame (26), the support frame (26) is fixedly mounted on the top surface of the base (1), two drying columns (27) are arranged inside the support frame (26), two rotating holes (28) are respectively provided on both sides of the support frame (26), the drying columns (27) are movably connected to the rotating holes (28), a heating groove (29) is provided on one side of the drying column (27), an electric heating wire (30) is fixedly mounted inside the heating groove (29), and a blocking ring (31) is fixedly connected to the inner circular wall surface of the heating groove (29).

4. A carbon fiber reinforced thermoplastic resin-based composite material preparation device according to claim 3, characterized in that: The conveying assembly comprises: A fixed frame (32), the fixed frame (32) being fixedly mounted on the top surface of the base (1), positioning holes (33) being respectively formed on both sides of the fixed frame (32), movable grooves (37) being respectively formed on both sides of the interior of the fixed frame (32), a conveying column (34) being movably sleeved on the inner circular wall surfaces of the two positioning holes (33), a second gear (35) being fixedly mounted on one end of the conveying column (34), a driving motor (36) being fixedly mounted on one side of the fixed frame (32), a driving shaft of the driving motor (36) being fixedly mounted on the other end of the conveying column (34), a conveying wheel (38) being movably sleeved on the inner circular wall surfaces of the two movable grooves (37), a third gear (39) being fixedly mounted on one end of the conveying wheel (38), and the third gear (39) being meshingly connected with the second gear (35).

5. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 4, characterized in that: Two auxiliary columns (40) and two limiting columns (41) are fixedly mounted on one side of the interior of the fixing frame (32); an auxiliary cylinder (42) is movably sleeved on the outer circular wall of the auxiliary column (40); a supporting cylinder (43) is movably sleeved on the outer circular wall of the limiting column (41); a plurality of combing grooves (44) are provided on the auxiliary cylinder (42) and the outer circular wall of the auxiliary cylinder (42); each single auxiliary cylinder (42) and supporting cylinder (43) form a group.

6. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 5, characterized in that: A fixing column (45) is fixedly mounted on one side of the interior of the fixing frame (32), and a plurality of combing teeth (46) are fixedly mounted on the outer circular wall surface of the fixing column (45).

7. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 6, characterized in that: Two limiting frames (47) are fixedly mounted on the top surface of the base (1), a distribution column (49) is arranged between the two limiting frames (47), a plurality of dispersion grooves (50) are provided on the outer circumferential wall surface of the distribution column (49), a conveying hole (48) is provided on one side of the limiting frame (47), and the conveying hole (48) is movably sleeved with the distribution column (49).

8. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 7, characterized in that: A support platform (51) is fixedly mounted on the top surface of the base (1); a plurality of vibration grooves (52) are provided on the top surface of the support platform (51); a vibration column (53) is movably sleeved on the inner circumferential wall surface of the vibration groove (52); a vibration platform (54) is fixedly mounted on the top surfaces of a plurality of the vibration columns (53); a mounting hole (55) is provided on one side of the vibration platform (54); a vibration motor (56) is fixedly mounted on the inner top surface of the mounting hole (55); and an outer circumferential wall surface of the vibration column (53) is movably sleeved on the inner circumferential wall surface of the vibration column (53). A fixing ring (57) is fixedly sleeved on the wall surface, a spring (58) is movably sleeved on the outer circular wall surface of the vibration column (53), the top surface of the spring (58) is fixedly mounted on the fixing ring (57), the bottom surface of the spring (58) is fixedly mounted on the support platform (51), a limiting block (59) is fixedly mounted on the bottom surface of the vibration column (53), and a limiting groove (60) is provided on the inner circular wall surface of the vibration groove (52), and the limiting groove (60) is movably sleeved on the limiting block (59).

9. The device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 8, characterized in that: A mounting frame (20) is fixedly mounted on one side of the interior of the base (1), a stepper motor (21) is fixedly sleeved inside the mounting frame (20), and a drive shaft of the stepper motor (21) is fixedly mounted on the movable column (18).

10. A method for preparing a carbon fiber reinforced thermoplastic resin-based composite material, characterized in that: A device for preparing a carbon fiber reinforced thermoplastic resin-based composite material according to claim 9, comprising the following steps: S1: The carbon fiber is allowed to pass between the conveying wheel (38) and the conveying column (34), and then the driving shaft of the driving motor (36) is rotated to drive the conveying column (34) and the second gear (35) to rotate. When the second gear (35) rotates, it meshes and drives the third gear (39) and the conveying wheel (38) to rotate, so that the first step of conveying the carbon fiber can be achieved; S2: After the carbon fiber is moved out from between the auxiliary tube (42) and the support tube (43), it is passed through the inside of the combing teeth (46). The carbon fiber strands can be combed by the multiple combing teeth (46) before entering the inside of the immersion box (2), thereby achieving the second step of preventing the carbon fiber strands from crossing and knotting with each other and affecting the carbon fiber impregnation; S3: before the carbon fibers move to the edge of the immersion box (2) and enter the interior of the immersion box (2), a plurality of carbon fiber filaments are distributed inside a plurality of dispersion grooves (50), thereby achieving the third step of preventing the carbon fibers from crossing before entering the interior of the immersion box (2); S4: When the carbon fiber filaments are moved from the fixing frame (32) to the surface of the distribution column (49), they pass through the surface of the vibration table (54), and then by using the vibration motor (56), the vibration motor (56) generates vibrations that drive the vibration column (53), the vibration table (54), the fixing ring (57), the spring (58) and the limit block (59) to vibrate and transmit the vibrations to the carbon fiber filaments, thereby achieving the fourth step of vibrating and spreading the carbon fiber filaments and reducing the agglomeration of the carbon fiber filaments; S5: When the carbon fiber is impregnated, the thermoplastic resin is first placed inside the impregnation box (2), and then the carbon fiber filaments enter the inside of the impregnation box (2) and the carbon fiber is immersed in the thermoplastic resin. The rotating block (17) is rotated to drive the movable column (18) and the gear (19) to rotate, and then the first gear (15) and the rotating column (16) are driven to rotate through the meshing of the gear (19) and the first gear (15). Then, the first gear (15) drives the stabilizing column (8), the stirring column (6) and the stirring plate (7) to rotate inside the impregnation box (2), so that the stirring plate (7) stirs the thermoplastic resin, so as to achieve the fifth step of promoting the fluidity of the thermoplastic resin and enhancing its penetration effect; S6: After the carbon fiber rack is impregnated inside the immersion box (2), it is passed through two drying columns (27). At the same time, by using an electric heating wire (30), the electric heating wire (30) is heated inside the heating tank (29) and conducted to the surface of the drying column (27), thereby increasing the temperature of the surface of the drying column (27). The sixth step is achieved to fully solidify the resin on the carbon fiber, which helps to fix the shape of the carbon fiber.

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