An online uniform mixing mechanism and method of graphene color paste for water-based conductive paint

Abstract

The application discloses a kind of online uniform mixing mechanism and method of graphene color paste for water-based conductive paint, including tank body, installation plate is provided on the tank body;First stirring shaft is provided on the installation plate, rotatable second stirring shaft is provided in the first stirring shaft, transmission assembly is provided between the first stirring shaft, second stirring shaft, so that the first stirring shaft rotates with the rotation of second stirring shaft;Disturbance component is provided in the tank body, the disturbance component is arranged on the outer wall of first stirring shaft, the first stirring shaft rotates, drives disturbance component to lift and disturb raw materials in tank body;The beneficial effects of the application are: by transmission assembly, the engagement and removal of transmission connection between the first stirring shaft and the second stirring shaft can be realized, and the working mode can be flexibly switched according to the mixing process of graphene color paste for water-based conductive paint.

Description

Technical Field

[0001] This invention relates to an online uniform mixing mechanism and method for graphene pigments used in water-based conductive coatings. Background Technology

[0002] In the preparation of water-based conductive coatings, the dispersion uniformity of graphene pigment directly affects the consistency and stability of the final coating's conductivity, making it a key process in the production process.

[0003] Currently, the industry commonly uses conventional single-shaft mixing equipment for graphene pigment mixing. However, due to the limitations of graphene's large specific surface area, strong van der Waals forces, and tendency to agglomerate and settle, a single mixing mode cannot simultaneously achieve macroscopic convection dispersion and microscopic shear homogenization. This can easily lead to problems such as layering, local agglomeration, and mixing blind zones. The mixing cycle is long, and the dispersion uniformity is difficult to guarantee. Furthermore, the mixing process often relies on manual experience or offline sampling and testing during downtime, which results in detection lag and an inability to dynamically adjust the mixing process based on the real-time dispersion status, which can easily lead to insufficient mixing or excessive energy consumption. Some dual-shaft mixing solutions require multiple independent drive systems, resulting in a complex overall structure, high manufacturing costs, large equipment footprint, and high maintenance difficulty. In view of this, this invention proposes an online uniform mixing mechanism and method for graphene pigments used in water-based conductive coatings to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an online uniform mixing mechanism and method for graphene pigments used in water-based conductive coatings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An online uniform mixing mechanism for graphene pigments in water-based conductive coatings includes a tank body, on which a mounting plate is provided;

[0007] The mounting plate is provided with a first stirring shaft, and a rotatable second stirring shaft is provided inside the first stirring shaft. A transmission component is provided between the first stirring shaft and the second stirring shaft, so that the first stirring shaft rotates as the second stirring shaft rotates.

[0008] The tank is equipped with a disturbance component, which is located on the outer wall of the first stirring shaft. When the first stirring shaft rotates, it causes the disturbance component to rise and fall, disturbing the raw materials inside the tank.

[0009] As an improvement to the above technical solution, a drive plate is provided on the mounting plate, and multiple sets of support rods are provided between the drive plate and the mounting plate;

[0010] The drive board is equipped with a drive servo motor, which is connected to the second stirring shaft.

[0011] As an improvement to the above technical solution, the outer wall of the first stirring shaft is provided with a first hexagonal actuating block, and the outer wall of the second stirring shaft is provided with a second hexagonal actuating block, the first hexagonal actuating block and the second hexagonal actuating block being compatible with each other;

[0012] The transmission assembly is disposed between the first external hexagonal actuating block and the second external hexagonal actuating block.

[0013] As an improvement to the above technical solution, the transmission assembly includes a transmission sleeve, the transmission sleeve having a transmission hole inside, and the transmission hole being adapted to the first external hexagonal actuating block and the second external hexagonal actuating block.

[0014] As an improvement to the above technical solution, a rotating sleeve is provided on the outer wall of the transmission sleeve, and the rotating sleeve is rotatably connected to the transmission sleeve.

[0015] The rotating sleeve is provided with two sets of lifting plates, and the drive plate is provided with two sets of drive cylinders. The two sets of drive cylinders are respectively matched with the two sets of lifting plates, and the piston rods of the drive cylinders are connected to the lifting plates.

[0016] As an improvement to the above technical solution, the disturbance component includes a disturbance ring, the outer wall of which is provided with a guide groove, and the tank body is provided with a guide protrusion, which is slidably disposed in the guide groove.

[0017] As an improvement to the above technical solution, a movable ring is also provided inside the disturbance ring, and the outer wall of the first stirring shaft is provided with a bidirectional threaded outer wall. The movable ring is threadedly engaged with the bidirectional threaded outer wall, so that the movable ring rises and falls with the rotation of the first stirring shaft.

[0018] As an improvement to the above technical solution, multiple sets of disturbance blades are provided between the active ring and the disturbance ring, and the disturbance blades are arranged in a ring array.

[0019] The second stirring shaft is provided with stirring blades, which are located below the disturbance ring.

[0020] As an improvement to the above technical solution, the tank body is also provided with two sets of movable covers, which are hinged to the mounting plate.

[0021] The movable cover is provided with a mounting housing, and an infrared spectrometer is mounted on the mounting housing.

[0022] A method for using an online uniform mixing mechanism for graphene pigments in water-based conductive coatings includes the following steps:

[0023] Step 1, Material Preparation:

[0024] Add the water-based base material and graphene raw material into the tank, close the movable cover on the top of the tank, and position the infrared spectrometer on the movable cover to detect the material inside the tank.

[0025] Step 2, Dispersion of low-speed disturbances:

[0026] The drive cylinder drives the transmission sleeve to move downward along the axis, so that the transmission sleeve simultaneously engages the first external hexagonal actuating block at the upper end of the first stirring shaft and the second external hexagonal actuating block on the second stirring shaft, so that the first stirring shaft and the second stirring shaft form a circumferential rigid transmission connection.

[0027] The drive servo motor is started and runs at low speed. The second stirring shaft drives the first stirring shaft to rotate synchronously. When the first stirring shaft rotates, the bidirectional threaded outer wall of its outer wall engages with the thread of the movable ring, driving the disturbance ring to move up and down axially along the guide convex strip on the inner wall of the tank. The disturbance blades form forced axial convection on the material in the tank, breaking up the graphene sedimentation and stratification and large agglomerates, and completing the macroscopic preliminary dispersion of graphene pigment.

[0028] During this process, two sets of infrared spectrometers continuously perform non-contact online detection on the pigment in the tank, and collect data on the uniformity of pigment dispersion in real time;

[0029] Step 3: Automatic mode switching:

[0030] When the infrared spectrometer detects that the macroscopic dispersion uniformity of the pigment reaches the preset mode switching threshold, it synchronously outputs control signals to the drive cylinder and the drive servo motor.

[0031] After receiving the signal, the drive cylinder drives the transmission sleeve to move upward along the axis, causing the transmission sleeve to disengage from the first external hexagonal actuating block and disconnecting the transmission connection between the first stirring shaft and the second stirring shaft.

[0032] Simultaneously, the servo motor is driven to increase the operating speed, and the second stirring shaft is driven to rotate at high speed, so that the equipment switches from low-speed disturbance mode to high-speed shearing homogenization mode.

[0033] Step 4: High-speed homogenization and endpoint determination:

[0034] The second stirring shaft applies high-speed shearing action to the pigment paste in the tank through the stirring blades at the lower end, refining the graphene micro-agglomerates;

[0035] During this process, an infrared spectrometer continuously monitors the microscopic dispersion uniformity of the pigment paste online;

[0036] When the test data reaches the preset finished product quality standard, the infrared spectrometer outputs a stop signal to the drive servo motor, which then stops running, completing the online uniform mixing of graphene pigment for water-based conductive coatings.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] The transmission component enables the engagement and disengagement of the transmission connection between the first and second stirring shafts, allowing for flexible switching of the working mode according to the mixing process of graphene pigments for water-based conductive coatings: in the initial dispersion stage, the two shafts work together and the disturbance component completes macroscopic global dispersion; in the fine homogenization stage, the second stirring shaft is driven alone to achieve high-speed shearing refinement. This addresses the characteristics of graphene pigments being prone to agglomeration and difficult to disperse, taking into account both macroscopic convection dispersion and microscopic shear homogenization requirements, effectively shortening the mixing cycle and improving dispersion uniformity.

[0039] During the rotation of the first stirring shaft, the disturbance component is driven to move up and down along the axial direction of the tank, which can form forced axial material convection in the tank. This effectively overcomes the sedimentation and stratification problem caused by the density difference between graphene powder and water-based base material, breaks the stirring blind zone on the inner wall and upper and lower ends of the tank, and ensures that the materials in all parts of the color paste are fully mixed, avoiding the phenomenon of local graphene agglomeration and uneven concentration at the top and bottom, and ensuring the overall uniformity of the color paste.

[0040] The first and second stirring shafts are arranged in a coaxial nested configuration. This allows for the reuse of the functions of the two stirring shafts without the need for multiple independent drive and transmission systems. The overall structure is compact, occupies little space, and has a short transmission path and high coaxiality, ensuring the stability of the stirring operation and reducing the manufacturing cost and maintenance difficulty of the equipment. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the present invention;

[0042] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0043] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point B;

[0044] Figure 4 This is a schematic diagram showing the positions of the first stirring shaft and the disturbance component of the present invention;

[0045] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point C;

[0046] Figure 6 This is a schematic diagram showing the positions of the first stirring shaft and the second stirring shaft of the present invention;

[0047] Figure 7 For this numbness Figure 6 Enlarged structural diagram at point D;

[0048] Figure 8 This is a schematic diagram of the disturbance component of the present invention.

[0049] In the diagram: 10. Tank body; 11. Mounting plate; 12. Movable cover; 13. Mounting housing; 14. Infrared spectrometer; 15. Guide rib; 20. First stirring shaft; 21. Bidirectional threaded outer wall; 22. First external hexagonal actuating block; 30. Drive servo motor; 31. Drive plate; 32. Support rod; 40. Second stirring shaft; 41. Stirring blade; 42. Second external hexagonal actuating block; 50. Disturbance assembly; 51. Disturbance ring; 52. Guide groove; 53. Disturbance blade; 54. Movable ring; 60. Transmission assembly; 61. Rotating sleeve; 62. Transmission sleeve; 63. Lifting plate; 64. Drive cylinder. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example:

[0052] like Figure 1-8 As shown, this embodiment proposes an online uniform mixing mechanism for graphene pigments used in water-based conductive coatings, including a tank 10, on which an mounting plate 11 is provided;

[0053] The mounting plate 11 is provided with a first stirring shaft 20, and a rotatable second stirring shaft 40 is provided inside the first stirring shaft 20. A transmission assembly 60 is provided between the first stirring shaft 20 and the second stirring shaft 40, so that the first stirring shaft 20 rotates as the second stirring shaft 40 rotates.

[0054] The tank 10 is equipped with a disturbance component 50, which is located on the outer wall of the first stirring shaft 20. When the first stirring shaft 20 rotates, it drives the disturbance component 50 to rise and fall, disturbing the raw materials inside the tank 10.

[0055] In this embodiment, when the color paste is stirred, the raw material is placed in the tank 10, and then the first stirring shaft 20 and the second stirring shaft 40 are connected together by the transmission assembly 60, and the second stirring shaft 40 is driven to rotate, thereby driving the first stirring shaft 20 to rotate. When the first stirring shaft 20 rotates, the disturbance assembly 50 is driven to move up and down in the tank 10 to disturb the raw material in the tank 10. When high-speed stirring and mixing is required, the transmission assembly 60 is used to disconnect the transmission connection between the first stirring shaft 20 and the second stirring shaft 40, and the second stirring shaft 40 is used to stir and mix the raw material in the tank 10 at high speed.

[0056] The transmission component 60 enables the engagement and disengagement of the transmission connection between the first stirring shaft 20 and the second stirring shaft 40, allowing for flexible switching of the working mode according to the mixing process of the graphene pigment for water-based conductive coatings: in the initial dispersion stage, the two shafts work together and the disturbance component 50 completes macroscopic global dispersion; in the fine homogenization stage, the second stirring shaft 40 is driven alone to achieve high-speed shearing refinement. This addresses the characteristics of graphene pigments being prone to agglomeration and difficult to disperse, taking into account both macroscopic convection dispersion and microscopic shearing homogenization, effectively shortening the mixing cycle and improving dispersion uniformity.

[0057] During the rotation of the first stirring shaft 20, the disturbance component 50 is driven to move up and down along the axial direction of the tank 10, which can form forced axial material convection in the tank 10. This effectively overcomes the sedimentation and stratification problem caused by the density difference between graphene powder and water-based base material, breaks the stirring blind zone on the inner wall and upper and lower ends of the tank 10, and ensures that the materials in all parts of the color paste are fully mixed, avoiding the phenomenon of local graphene agglomeration and uneven concentration, and ensuring the overall uniformity of the color paste.

[0058] The first stirring shaft 20 and the second stirring shaft 40 are arranged in a coaxial nested configuration. While realizing the reuse of the functions of the two stirring shafts, there is no need to set up multiple independent drive and transmission systems. The overall structure is compact, occupies little space, and has a short transmission path and high coaxiality, which ensures the stability of the stirring operation and reduces the manufacturing cost and maintenance difficulty of the equipment.

[0059] Specifically, a drive plate 31 is provided on the mounting plate 11, and multiple sets of support rods 32 are provided between the drive plate 31 and the mounting plate 11;

[0060] The drive plate 31 is equipped with a drive servo motor 30, which is connected to the second stirring shaft 40 in a transmission manner.

[0061] Specifically, the outer wall of the first stirring shaft 20 is provided with a first hexagonal actuating block 22, and the outer wall of the second stirring shaft 40 is provided with a second hexagonal actuating block 42, and the first hexagonal actuating block 22 and the second hexagonal actuating block 42 are compatible with each other;

[0062] The transmission assembly 60 is disposed between the first external hexagonal actuating block 22 and the second external hexagonal actuating block 42.

[0063] Specifically, the transmission assembly 60 includes a transmission sleeve 62, which has a transmission hole inside, and the transmission hole is adapted to the first external hexagonal actuating block 22 and the second external hexagonal actuating block 42.

[0064] In this embodiment, the first external hexagonal actuating block 22, the second external hexagonal actuating block 42 and the internal hexagonal transmission hole of the transmission sleeve 62 form a surface contact circumferential limiting transmission, which can stably transmit the torque under the stirring load and avoid transmission slippage, circumferential impact and abnormal noise. It can adapt to the high torque transmission requirements under the high viscosity of graphene pigment, and ensure the stability and consistency of the lifting and lowering operation of the disturbance component 50 in the dual-axis linkage mode.

[0065] The transmission sleeve 62 can be moved up and down along the axis to complete the engagement and disengagement with the first external hexagonal actuating block 22 and the second external hexagonal actuating block 42. The hexagonal mating surface has good axial guiding properties, so as to accurately complete the switching between the two working modes of dual-axis linkage dispersion and single-axis high-speed homogenization.

[0066] Specifically, the outer wall of the transmission sleeve 62 is provided with a rotating sleeve 61, which is rotatably connected to the transmission sleeve 62;

[0067] The rotating sleeve 61 is provided with two sets of lifting plates 63, and the drive plate 31 is provided with two sets of drive cylinders 64. The two sets of drive cylinders 64 are respectively matched with the two sets of lifting plates 63, and the piston rod of the drive cylinder 64 is connected to the lifting plate 63.

[0068] In this embodiment, the rotational engagement of the rotating sleeve 61 and the transmission sleeve 62 decouples the circumferential rotational motion from the axial reciprocating drive. The transmission sleeve 62 can rotate synchronously with the stirring shaft to transmit torque, while the rotating sleeve 61 and the piston rod of the drive cylinder 64 connected thereto only move axially and do not participate in the circumferential rotation, so that the drive cylinder 64 can drive the transmission sleeve 62 to perform lifting and lowering transmission power.

[0069] Specifically, the disturbance component 50 includes a disturbance ring 51, the outer wall of which is provided with a guide groove 52, and the tank body 10 is provided with a guide protrusion 15, which is slidably disposed in the guide groove 52.

[0070] Specifically, a movable ring 54 is also provided inside the disturbance ring 51, and the outer wall of the first stirring shaft 20 is provided with a bidirectional threaded outer wall 21. The movable ring 54 is threadedly engaged with the bidirectional threaded outer wall 21, so that the movable ring 54 rises and falls with the rotation of the first stirring shaft 20.

[0071] In this embodiment, the guide protrusion 15 on the inner wall of the tank 10 and the guide groove 52 on the outer wall of the disturbance ring 51 are slidably fitted together to form a circumferential rotation limit for the disturbance ring 51, so that it only retains the degree of freedom of movement along the axial direction of the tank 10. Under this constraint, when the first stirring shaft 20 rotates, the threaded pair formed by its bidirectional threaded outer wall 21 and the movable ring 54 can stably convert the circumferential rotational motion into the axial lifting and lowering motion of the movable ring 54 and the disturbance ring 51, avoiding the transmission failure problem of the disturbance ring 51 rotating synchronously with the first stirring shaft 20, ensuring that the lifting and lowering disturbance action is accurate, controllable, repeatable and consistent, and ensuring the stability of the material disturbance effect.

[0072] Specifically, multiple sets of disturbance blades 53 are arranged between the active ring 54 and the disturbance ring 51, and the disturbance blades 53 are arranged in a ring array.

[0073] The second stirring shaft 40 is provided with stirring blades 41, which are located below the disturbance ring 51.

[0074] In this embodiment, the disturbance blades 53 can disturb the raw materials during the raising and lowering of the disturbance ring 51, while the stirring blades 41 can easily stir the raw materials at high speed.

[0075] Specifically, the tank body 10 is also provided with two sets of movable covers 12, which are hinged to the mounting plate 11;

[0076] An installation housing 13 is provided on the movable cover 12, and an infrared spectrometer 14 is provided on the installation housing 13.

[0077] In this embodiment, by integrating an infrared spectrometer 14 on the movable cover 12, the component concentration and graphene dispersion uniformity of the material in the tank can be non-invasively detected online during the mixing process of graphene pigment for water-based conductive coatings. This eliminates the need to stop the machine to take samples for offline detection, effectively eliminating detection lag.

[0078] Of course, after the equipment is started, the drive cylinder 64 drives the transmission sleeve 62 to fall, so that the first stirring shaft 20 and the second stirring shaft 40 form a transmission connection. The drive servo motor 30 drives the dual shafts to operate synchronously at low speed, driving the disturbance component 50 to rise and fall to macroscopically disperse the pigment paste. During this process, the infrared spectrometer 14 detects the dispersion uniformity of the pigment paste in the tank 10 in real time. When the detection data reaches the preset mode switching threshold, it outputs control signals to the drive cylinder 64 and the drive servo motor 30 simultaneously. The drive cylinder 64 drives the transmission sleeve 62 to rise to disengage the dual shaft transmission connection, and at the same time drives the servo motor 30 to increase the speed, driving the second stirring shaft 40 to perform high-speed shear homogenization alone. During the high-speed homogenization stage, the infrared spectrometer 14 continuously detects. When the dispersion uniformity of the pigment paste reaches the finished product standard, it outputs a stop signal to the drive servo motor 30, and the entire mixing process is completed. The signals in the above steps are processed uniformly by the central processing unit.

[0079] A method for using an online uniform mixing mechanism for graphene pigments in water-based conductive coatings includes the following steps:

[0080] Step 1, Material Preparation:

[0081] Water-based base material and graphene raw material are put into the tank 10, and the movable cover 12 on the top of the tank 10 is closed so that the infrared spectrometer 14 on the movable cover 12 is in the detection position facing the material in the tank.

[0082] Step 2, Dispersion of low-speed disturbances:

[0083] The drive cylinder 64 drives the transmission sleeve 62 to move downward along the axial direction, so that the transmission sleeve 62 simultaneously engages the first external hexagonal actuating block 22 at the upper end of the first stirring shaft 20 and the second external hexagonal actuating block 42 on the second stirring shaft 40, so that the first stirring shaft 20 and the second stirring shaft 40 form a circumferential rigid transmission connection.

[0084] The drive servo motor 30 is started and runs at low speed. The second stirring shaft 40 drives the first stirring shaft 20 to rotate synchronously. When the first stirring shaft 20 rotates, the bidirectional threaded outer wall 21 of its outer wall engages with the threaded engagement of the movable ring 54, driving the disturbance ring 51 to axially reciprocate up and down along the guide convex strip 15 on the inner wall of the tank 10. The disturbance blade 53 forms forced axial convection on the material in the tank, breaking the graphene sedimentation stratification and large agglomerates, and completing the macroscopic preliminary dispersion of the graphene pigment.

[0085] During this process, two sets of infrared spectrometers 14 continuously perform non-contact online detection on the pigment in the tank and collect data on the uniformity of pigment dispersion in real time;

[0086] Step 3: Automatic mode switching:

[0087] When the infrared spectrometer 14 detects that the macroscopic dispersion uniformity of the pigment reaches the preset mode switching threshold, it synchronously outputs control signals to the drive cylinder 64 and the drive servo motor 30.

[0088] After receiving the signal, the drive cylinder 64 drives the transmission sleeve 62 to move upward along the axial direction, so that the transmission sleeve 62 disengages from the first external hexagonal toggle block 22, thereby disconnecting the transmission connection between the first stirring shaft 20 and the second stirring shaft 40.

[0089] Simultaneously, the servo motor 30 is driven to increase the operating speed, and the second stirring shaft 40 is driven to rotate at high speed, so that the equipment switches from low-speed disturbance mode to high-speed shearing homogenization mode.

[0090] Step 4: High-speed homogenization and endpoint determination:

[0091] The second stirring shaft 40 applies a high-speed shearing action to the pigment paste in the tank through the stirring blades 41 at the lower end, refining the graphene micro-agglomerates;

[0092] During this process, the infrared spectrometer 14 continuously monitors the microscopic dispersion uniformity of the pigment paste online;

[0093] When the test data reaches the preset finished product quality standard, the infrared spectrometer 14 outputs a stop signal to the drive servo motor 30, and the drive servo motor 30 stops running, completing the online uniform mixing of graphene pigment for water-based conductive coatings.

[0094] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online uniform mixing mechanism for graphene pigments in water-based conductive coatings, characterized in that: Includes a tank (10), on which an mounting plate (11) is provided; The mounting plate (11) is provided with a first stirring shaft (20), and a rotatable second stirring shaft (40) is provided inside the first stirring shaft (20). A transmission assembly (60) is provided between the first stirring shaft (20) and the second stirring shaft (40), so that the first stirring shaft (20) rotates as the second stirring shaft (40) rotates. The tank (10) is provided with a disturbance component (50), which is located on the outer wall of the first stirring shaft (20). The first stirring shaft (20) rotates, causing the disturbance component (50) to rise and fall to disturb the raw materials in the tank (10).

2. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 1, characterized in that: A drive plate (31) is provided on the mounting plate (11), and multiple sets of support rods (32) are provided between the drive plate (31) and the mounting plate (11). The drive plate (31) is provided with a drive servo motor (30), which is connected to the second stirring shaft (40) for transmission.

3. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 2, characterized in that: The outer wall of the first stirring shaft (20) is provided with a first hexagonal actuating block (22), and the outer wall of the second stirring shaft (40) is provided with a second hexagonal actuating block (42). The first hexagonal actuating block (22) and the second hexagonal actuating block (42) are compatible with each other. The transmission assembly (60) is disposed between the first external hexagonal actuating block (22) and the second external hexagonal actuating block (42).

4. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 3, characterized in that: The transmission assembly (60) includes a transmission sleeve (62), which has a transmission hole inside, and the transmission hole is adapted to the first external hexagonal actuating block (22) and the second external hexagonal actuating block (42).

5. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 4, characterized in that: The outer wall of the transmission sleeve (62) is provided with a rotating sleeve (61), and the rotating sleeve (61) is rotatably connected to the transmission sleeve (62); The rotating sleeve (61) is provided with two sets of lifting plates (63), and the drive plate (31) is provided with two sets of drive cylinders (64). The two sets of drive cylinders (64) are respectively matched with the two sets of lifting plates (63), and the piston rod of the drive cylinder (64) is connected to the lifting plate (63).

6. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 5, characterized in that: The disturbance component (50) includes a disturbance ring (51), the outer wall of which is provided with a guide groove (52), and the tank body (10) is provided with a guide protrusion (15), which is slidably disposed in the guide groove (52).

7. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 6, characterized in that: The disturbance ring (51) is also provided with a movable ring (54), and the outer wall of the first stirring shaft (20) is provided with a bidirectional threaded outer wall (21). The movable ring (54) is threadedly engaged with the bidirectional threaded outer wall (21), so that the movable ring (54) moves up and down with the rotation of the first stirring shaft (20).

8. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 7, characterized in that: Multiple sets of disturbance blades (53) are arranged between the active ring (54) and the disturbance ring (51), and the disturbance blades (53) are arranged in a ring array; The second stirring shaft (40) is provided with stirring blades (41), which are located below the disturbance ring (51).

9. The online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to claim 8, characterized in that: The tank body (10) is also provided with two sets of movable covers (12), which are hinged to the mounting plate (11); An installation housing (13) is provided on the movable cover (12), and an infrared spectrometer (14) is provided on the installation housing (13).

10. A method of using the online uniform mixing mechanism for graphene pigments in water-based conductive coatings according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1, Material Preparation: Water-based base material and graphene raw material are put into the tank (10), and the movable cover (12) on the top of the tank (10) is closed so that the infrared spectrometer (14) on the movable cover (12) is in the detection position facing the material in the tank; Step 2, Dispersion of low-speed disturbances: The drive cylinder (64) drives the transmission sleeve (62) to move downward along the axial direction, so that the transmission sleeve (62) simultaneously engages the first external hexagonal actuating block (22) at the upper end of the first stirring shaft (20) and the second external hexagonal actuating block (42) on the second stirring shaft (40), so that the first stirring shaft (20) and the second stirring shaft (40) form a circumferential rigid transmission connection; Start the drive servo motor (30) and run at low speed. Drive the first stirring shaft (20) to rotate synchronously through the second stirring shaft (40). When the first stirring shaft (20) rotates, it drives the disturbance ring (51) to move back and forth axially along the guide convex strip (15) on the inner wall of the tank (10) through the threaded engagement of the bidirectional threaded outer wall (21) on its outer wall and the moving ring (54). Through the disturbance blade (53), the material in the tank is forced to axially convection, breaking the graphene sedimentation and stratification and large agglomerates, and completing the macroscopic preliminary dispersion of graphene pigment. During this process, two sets of infrared spectrometers (14) continuously perform non-contact online detection on the pigment in the tank and collect data on the uniformity of pigment dispersion in real time; Step 3: Automatic mode switching: When the infrared spectrometer (14) detects that the macroscopic dispersion uniformity of the pigment reaches the preset mode switching threshold, it synchronously outputs control signals to the drive cylinder (64) and the drive servo motor (30); After receiving the signal, the drive cylinder (64) drives the transmission sleeve (62) to move upward along the axis, so that the transmission sleeve (62) disengages from the first external hexagonal toggle block (22) and disconnects the transmission connection between the first stirring shaft (20) and the second stirring shaft (40); At the same time, the servo motor (30) is driven to increase the operating speed, and the second stirring shaft (40) is driven to rotate at high speed. The equipment switches from low-speed disturbance mode to high-speed shearing homogenization mode. Step 4: High-speed homogenization and endpoint determination: The second stirring shaft (40) applies high-speed shearing action to the pigment paste in the tank through the stirring blades (41) at the lower end, refining the graphene micro-agglomerates; During this process, the infrared spectrometer (14) continuously monitors the micro-dispersion uniformity of the pigment online; When the test data reaches the preset finished product quality standard, the infrared spectrometer (14) outputs a stop signal to the drive servo motor (30), and the drive servo motor (30) stops running, completing the online uniform mixing of graphene pigment for water-based conductive coatings.

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