A device for testing the dispersion of pigments used in painting

Abstract

The present invention belongs to the technical field of pigment dispersion testing, specifically a device for testing the dispersion of pigments used in painting. The device comprises a base, a testing cylinder, a biconical dispersing mechanism, and an anti-coagulation grinding mechanism. The testing cylinder is mounted on the upper wall of the base, the biconical dispersing mechanism is located within the testing cylinder, and the anti-coagulation grinding mechanism is located between the upper and bottom walls of the testing cylinder. The biconical dispersing mechanism includes a centrifugal mechanism, a converging mechanism, and a concentration measuring mechanism. The present invention provides a device for testing the dispersion of pigments used in painting that can separate and test granular and powdered pigments, and grind the separated granular pigments into powder while preventing the powdered pigments from agglomerating.

Description

Technical Field

[0001] The invention belongs to the technical field of pigment dispersion testing, and in particular relates to a pigment dispersion testing device for painting. Background Art

[0002] In art works, we use a lot of pigments to color the canvas or other carriers for drawing patterns. Some are also used in colored paints for architectural paintings, and colored plastics for making a large number of plastic art works. Pigments are evenly dispersed in these colored paints and plastic materials to make them show corresponding colors and give people a sense of visual beauty. Therefore, whether the pigment is easy to disperse and the stability of the dispersion system directly affect the lifespan and quality of the colored art works.

[0003] The existing pigment dispersion test devices have the following problems:

[0004] Existing pigment dispersion test devices do not have the ability to separate granular pigments from powdered pigments, resulting in the entire milled pigment being reworked. The pigment is milled for a long time, causing the pigment with the required particle size to agglomerate after long-term milling, thereby reducing the dispersion of the pigment. Therefore, it cannot meet the existing use requirements of existing pigment dispersion test devices. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides a pigment dispersion testing device for painting that can separate and test granular pigments and powdered pigments, and can grind the separated granular pigments into powder while avoiding the agglomeration of the powdered pigments.

[0006] The technical solution adopted in this scheme is as follows: This scheme proposes a device for testing the dispersion of painting pigments, including a base, a test cylinder, a double-cone dispersing mechanism and an anti-coagulation type grinding mechanism. The test cylinder is arranged on the upper wall of the base, the double-cone dispersing mechanism is arranged inside the test cylinder, and the anti-coagulation type grinding mechanism is arranged between the upper wall and the bottom wall of the test cylinder. The double-cone dispersing mechanism includes a centrifugal mechanism, a flow-converging mechanism and a concentration measuring mechanism. The centrifugal mechanism is arranged on the inner wall of the test cylinder, the flow-converging mechanism is arranged on the top wall of the test cylinder, and the concentration measuring mechanism is arranged on the side wall of the test cylinder. The anti-coagulation type grinding mechanism includes a wall-adhering mechanism and a bottom-pulling mechanism. The wall-adhering mechanism is arranged inside the centrifugal mechanism, and the bottom-pulling mechanism is arranged on the bottom wall of the test cylinder.

[0007] As a further preferred embodiment of the present invention, the centrifugal mechanism includes a rotating ring, an inverted cone, a centrifugal motor and a centrifugal shaft. The rotating ring is rotatably arranged on the upper inner wall of the test cylinder, the inverted cone is arranged on the bottom wall of the rotating ring, the inverted cone is arranged with an upper opening, the centrifugal motor is arranged on the bottom wall of the test cylinder below the inverted cone, and the centrifugal shaft is between the power end of the centrifugal motor and the inverted cone; the flow-converging mechanism includes a flow-converging motor, a flow-converging shaft and inverted conical fan blades, the flow-converging motor is arranged on the upper wall of the test cylinder, the flow-converging shaft passes through the test cylinder and is arranged at the power end of the flow-converging motor, and multiple The inverted conical fan blades of the group are arranged on the outside of the converging shaft, and the inverted conical fan blades are arranged inside the inverted conical cylinder; the concentration measuring mechanism includes a transparent glass layer, a concentration measuring seat, a light intensity sensor, an irradiation lamp and a light intensity glass layer, multiple groups of the transparent glass layers are arranged through the inner wall of the test cylinder, the concentration measuring seat is arranged on the outside of the test cylinder, the light intensity sensor is arranged through the inner wall of one end of the concentration measuring seat close to the transparent glass layer, multiple groups of the irradiation lamps are arranged on the upper wall of the test cylinder, and multiple groups of the light intensity glass layers are arranged through the inner wall of the top of the inverted conical cylinder, and the light intensity glass layer is arranged horizontally with the inner wall of the inverted conical cylinder.

[0008] During use, the power end of the centrifugal motor drives the inverted cone to rotate through the centrifugal shaft, and the inverted cone drives the light intensity glass layer to be opposite to the light-transmitting glass layer on the inner wall of the test cylinder. The irradiation lamp is turned on in advance, and the light emitted by the irradiation lamp is sensed by the light intensity sensor through the light intensity glass layer and the light-transmitting glass layer. The light intensity sensor detects the intensity of the light source emitted by the irradiation lamp from the inside of the inverted cone through the detection end, and then pours the ground pigment into the inside of the inverted cone through the test cylinder. The ground pigment occupies one-third of the volume inside the inverted cone. The power end of the centrifugal motor drives the inverted cone to rotate through the centrifugal shaft, and the inverted cone rotates along the inner wall of the test cylinder through the rotating ring. The granular pigment inside the inverted cone rotates counterclockwise under the action of centrifugal force, and the pigment particles move outward from the center of rotation along the cone wall of the inverted cone under the action of centrifugal force. The greater the density of the pigment particles, the greater the centrifugal force they are subjected to, and the easier it is for them to move outward along the cone wall of the inverted cone, thereby facilitating the spreading of the pigment.

[0009] Preferably, the wall-adhering mechanism includes a fixed block, a hydraulic cylinder, a guide table, a connecting frame, a connecting shaft, a grinding frame, a semi-cylinder and a grinding ball, multiple groups of fixed blocks are arranged on the upper wall of the test cylinder, the hydraulic cylinder is hinged at one end of the fixed block away from the upper wall of the test cylinder, the guide table is rotatably arranged between the bottom wall of the inverted cone cylinder and the flow-converging axis, multiple groups of the connecting frame are hinged at one end of the guide table away from the flow-converging axis, the connecting shaft is rotatably arranged at one end of the connecting frame away from the guide table, the grinding frame is arranged outside the connecting shaft, the end of the grinding frame away from the connecting shaft is hinged at one end of the hydraulic cylinder away from the fixed block, and multiple groups of the semi-cylinders are arranged on the grinding frame near the inverted cone At one end of the inner wall of the cylinder, the semi-cylinder is set with one end open, and the grinding ball is rolled on the end of the semi-cylinder away from the grinding frame; the bottom pulling mechanism includes a support rod, an annular electromagnet, a side pulling magnet, a reset spring and a reset plate, and multiple groups of the support rods are arranged on the bottom wall of the test cylinder outside the inverted cone cylinder, the annular electromagnet is arranged on the side of the support rod close to the inverted cone cylinder, the annular electromagnet is arranged on the outside of the inverted cone cylinder, the side pulling magnet is arranged on the side wall of one end of the grinding frame close to the connecting shaft, the annular electromagnet and the side pulling magnet are arranged opposite to each other, the reset plate is symmetrically arranged on both sides of the connecting shaft, and the reset spring is arranged between the connecting frame outside the connecting shaft and the reset plate.

[0010] During use, when it is detected that there are particulate pigments that have not been completely ground into powder in the dispersed pigments, in order to ensure that the pigments have a smaller particle size and meet the painting requirements, when the light intensity sensor detects that the light intensity emitted from the inside of the inverted cone tube is no longer changing, the power end of the hydraulic cylinder extends, and the hydraulic cylinder drives the grinding balls at its upper end to fit into the upper inner wall of the inverted cone tube through the grinding frame. Subsequently, the annular electromagnet is energized to generate magnetism, and the annular electromagnet and the side-pull magnet are set with opposite poles. The annular electromagnet is fixed to the side wall of the support rod and absorbs the side-pull magnet by magnetic force. The side-pull magnet uses the deformation of the reset spring to drive the lower end of the grinding frame close to the inner wall of the inverted cone tube, and the grinding frame drives the grinding balls at its lower end to fit into the inner wall of the inverted cone tube, so that the grinding balls on the side wall of the grinding frame are completely in fit with the inner wall of the inverted cone tube. During the rotation of the inverted cone tube, the grinding balls roll along the inner wall of the inverted cone tube to grind the particulate pigments.

[0011] Specifically, a controller is provided on the side wall of the testing cylinder.

[0012] The controller is electrically connected to the centrifugal motor, the converging motor, the light intensity sensor, the irradiation lamp, the hydraulic cylinder and the annular electromagnet respectively.

[0013] Preferably, the model of the controller is SYC89C52RC-401.

[0014] Furthermore, the model of the light intensity sensor is BH1750.

[0015] The beneficial effects achieved by adopting the above structure are as follows:

[0016] Compared with the existing technology, this solution adopts a combination of a counterclockwise centrifugal rotation structure and a clockwise airflow gathering structure. Through the double-cone dispersion mechanism and the anti-coagulation grinding mechanism, the centrifugal mechanism, the flow gathering mechanism, the concentration measuring mechanism, the wall-adhering mechanism and the bottom-pulling mechanism are used in conjunction with each other to separate the granular pigment from the powder pigment, and to detect the concentration of the separated powder pigment. On the one hand, it can detect the grinding effect of the grinding structure on the pigment. The smaller the pigment particles, the better the dispersibility. On the other hand, it can detect the viscosity of the powder pigment and the fluidity of the low-viscosity pigment. Good, easy to disperse, can be quickly and evenly distributed in the medium, and with the intervention of the grinding balls, the pigment particles that have not been fully ground after separation can be re-grinded. In order to avoid the pigment from agglomerating under long-term grinding operations, the inverted conical fan blades are kept rotating continuously, and the pigment ground into powder can be collected to ensure the dispersion of the pigment. The grinding frame drives the grinding balls at its lower end to fit into the inner wall of the inverted cone cylinder, so that the grinding balls on the side wall of the grinding frame are completely fitted into the inner wall of the inverted cone cylinder. During the rotation of the inverted cone cylinder, the grinding balls roll along the inner wall of the inverted cone cylinder to grind the granular pigments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is a schematic diagram of the internal structure of this scheme;

[0019] Figure 3 This is a schematic diagram of the combined structure of the flow converging mechanism and the wall-adhering mechanism of this scheme;

[0020] Figure 4 This is a structural diagram of the bottom pulling mechanism of this scheme;

[0021] Figure 5 This is the main view of this scheme;

[0022] Figure 6 This is a side view of the scheme;

[0023] Figure 7 This is a top view of the scheme;

[0024] Figure 8 for Figure 5 AA section view;

[0025] Figure 9 for Figure 6 BB partial cross-sectional view;

[0026] Figure 10 for Figure 3 A magnified structural view of part I;

[0027] Figure 11 for Figure 8A magnified structural view of Part II;

[0028] Figure 12 for Figure 9 A magnified structural view of part III.

[0029] Among them, 1. base, 2. test cylinder, 3. double-cone dispersion mechanism, 4. centrifugal mechanism, 5. rotating ring, 6. inverted cone cylinder, 7. centrifugal motor, 8. centrifugal shaft, 9. flow-gathering mechanism, 10. flow-gathering motor, 11. flow-gathering shaft, 12. inverted cone fan blades, 13. concentration measuring mechanism, 14. light-transmitting glass layer, 15. concentration measuring seat, 16. light intensity sensor, 17. irradiation lamp, 18. anti-condensation type grinding mechanism, 19. wall-adhering mechanism, 20. fixed block, 21. hydraulic cylinder, 22. guide table, 23. connecting frame, 24. connecting shaft, 25. grinding frame, 26. semi-cylinder, 27. grinding ball, 28. bottom pulling mechanism, 29. support rod, 30. annular electromagnet, 31. side pulling magnet, 32. reset spring, 33. reset plate, 34. controller, 35. light intensity glass layer.

[0030] The accompanying drawings are used to provide further understanding of the present solution and constitute a part of the specification. Together with the embodiments of the present solution, they are used to explain the present solution and do not constitute a limitation to the present solution. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of this solution will be clearly and completely described below in conjunction with the drawings in the embodiments of this solution. Obviously, the described embodiments are only part of the embodiments of this solution, not all of the embodiments; based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0032] In the description of this solution, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this solution.

[0033] like Figures 1-12As shown, the technical solution adopted in this scheme is as follows: This scheme proposes a device for testing the dispersion of painting pigments, including a base 1, a test cylinder 2, a double-cone dispersing mechanism 3 and an anti-coagulation type grinding mechanism 18, wherein the test cylinder 2 is arranged on the upper wall of the base 1, the double-cone dispersing mechanism 3 is arranged inside the test cylinder 2, and the anti-coagulation type grinding mechanism 18 is arranged between the upper wall and the bottom wall of the test cylinder 2, the double-cone dispersing mechanism 3 includes a centrifugal mechanism 4, a flow-converging mechanism 9 and a concentration measuring mechanism 13, the centrifugal mechanism 4 is arranged on the inner wall of the test cylinder 2, the flow-converging mechanism 9 is arranged on the top wall of the test cylinder 2, the concentration measuring mechanism 13 is arranged on the side wall of the test cylinder 2, the anti-coagulation type grinding mechanism 18 includes a wall-adhering mechanism 19 and a bottom-pulling mechanism 28, the wall-adhering mechanism 19 is arranged inside the centrifugal mechanism 4, and the bottom-pulling mechanism 28 is arranged on the bottom wall of the test cylinder 2.

[0034] The centrifugal mechanism 4 includes a rotating ring 5, an inverted cone 6, a centrifugal motor 7 and a centrifugal shaft 8. The rotating ring 5 is rotatably arranged on the upper inner wall of the test cylinder 2, the inverted cone 6 is arranged on the bottom wall of the rotating ring 5, the inverted cone 6 is arranged with an upper opening, the centrifugal motor 7 is arranged on the bottom wall of the test cylinder 2 below the inverted cone 6, and the centrifugal shaft 8 is between the power end of the centrifugal motor 7 and the inverted cone 6; the flow-converging mechanism 9 includes a flow-converging motor 10, a flow-converging shaft 11 and inverted conical fan blades 12, the flow-converging motor 10 is arranged on the upper wall of the test cylinder 2, the flow-converging shaft 11 passes through the test cylinder 2 and is arranged at the power end of the flow-converging motor 10, and multiple groups of inverted conical fan blades 12 are arranged On the outside of the converging axis 11, the inverted conical fan blades 12 are arranged inside the inverted cone cylinder 6; the concentration measuring mechanism 13 includes a transparent glass layer 14, a concentration measuring seat 15, a light intensity sensor 16, an irradiation lamp 17 and a light intensity glass layer 35, multiple groups of the transparent glass layers 14 are arranged through the inner wall of the test cylinder 2, the concentration measuring seat 15 is arranged on the outside of the test cylinder 2, the light intensity sensor 16 is arranged through the inner wall of one end of the concentration measuring seat 15 close to the transparent glass layer 14, multiple groups of the irradiation lamps 17 are arranged on the upper wall of the test cylinder 2, and multiple groups of the light intensity glass layer 35 are arranged through the inner wall of the top of the inverted cone cylinder 6, and the light intensity glass layer 35 is arranged horizontally with the inner wall of the inverted cone cylinder 6.

[0035] The wall-adhering mechanism 19 includes a fixed block 20, a hydraulic cylinder 21, a guide platform 22, a connecting frame 23, a connecting shaft 24, a grinding frame 25, a semi-cylinder 26 and a grinding ball 27. Multiple groups of the fixed blocks 20 are arranged on the upper wall of the test cylinder 2, the hydraulic cylinder 21 is hinged at one end of the fixed block 20 away from the upper wall of the test cylinder 2, the guide platform 22 is rotatably arranged between the bottom wall of the inverted cone 6 and the flow-converging axis 11, multiple groups of the connecting frames 23 are hinged at one end of the guide platform 22 away from the flow-converging axis 11, the connecting shaft 24 is rotatably arranged at one end of the connecting frame 23 away from the guide platform 22, the grinding frame 25 is arranged on the outside of the connecting shaft 24, and one end of the grinding frame 25 away from the connecting shaft 24 is hinged at one end of the hydraulic cylinder 21 away from the fixed block 20, and multiple groups of the semi-cylinders 26 are arranged near the inverted cone At one end of the inner wall of the conical cylinder 6, the semi-cylinder 26 is set with one end open, and the grinding ball 27 is rolled on the end of the semi-cylinder 26 away from the grinding frame 25; the bottom pulling mechanism 28 includes a support rod 29, an annular electromagnet 30, a side pulling magnet 31, a reset spring 32 and a reset plate 33, and multiple groups of the support rods 29 are arranged on the bottom wall of the test cylinder 2 outside the inverted conical cylinder 6, the annular electromagnet 30 is arranged on the side of the support rod 29 close to the inverted conical cylinder 6, the annular electromagnet 30 is arranged on the outside of the inverted conical cylinder 6, the side pulling magnet 31 is arranged on the side wall of one end of the grinding frame 25 close to the connecting shaft 24, the annular electromagnet 30 and the side pulling magnet 31 are arranged opposite to each other, the reset plate 33 is symmetrically arranged on both sides of the connecting shaft 24, and the reset spring 32 is arranged between the connecting frame 23 outside the connecting shaft 24 and the reset plate 33.

[0036] A controller 34 is provided on the side wall of the test cylinder 2 .

[0037] The controller 34 is electrically connected to the centrifugal motor 7 , the focusing motor 10 , the light intensity sensor 16 , the illumination lamp 17 , the hydraulic cylinder 21 and the annular electromagnet 30 , respectively.

[0038] The model of the controller 34 is SYC89C52RC-401.

[0039] The model of the light intensity sensor 16 is BH1750.

[0040] During specific use, the controller 34 controls the centrifugal motor 7 to start, and the power end of the centrifugal motor 7 drives the inverted cone 6 to rotate through the centrifugal shaft 8. The inverted cone 6 drives the light intensity glass layer 35 to face the light-transmitting glass layer 14 on the inner wall of the test cylinder 2. The controller 34 controls the illumination lamp 17 to start. The illumination lamp 17 is turned on in advance. The light emitted by the illumination lamp 17 passes through the light intensity glass layer 35 and the light-transmitting glass layer 14 and is sensed by the light intensity sensor 16. The controller 34 controls the light intensity sensor 16 to start, and the light intensity sensor 16 detects and records the intensity of the light emitted from the inside of the inverted cone 6 by the illumination lamp 17 through the detection end.

[0041] The ground paint is poured into the inverted cone 6 through the test cylinder 2. The ground paint occupies one-third of the volume of the inverted cone 6. The controller 34 controls the centrifugal motor 7 to start. The power end of the centrifugal motor 7 drives the inverted cone 6 to rotate through the centrifugal shaft 8. The inverted cone 6 rotates along the inner wall of the test cylinder 2 through the rotating ring 5. The pigment particles inside the inverted cone 6 rotate counterclockwise under the action of centrifugal force. The pigment particles move outward from the rotation center along the cone wall of the inverted cone 6 under the action of centrifugal force. The pigment particles with higher density are subjected to greater centrifugal force, and are more likely to move outward along the cone wall of the inverted cone 6, thereby facilitating the spreading of the pigment.

[0042] At this time, the controller 34 controls the focusing motor 10 to start, and the focusing motor 10 drives the inverted conical fan blades 12 to rotate through the power end. The inverted conical fan blades 12 rotate clockwise to collect the powder in the pigment. Under the same rotation speed of the centrifugal motor 7 and the focusing motor 10, for larger pigment particles, their mass is larger and the inertia effect is significant. The centrifugal force they are subjected to is more obvious, and they will move outward along the cone wall of the inverted cone cylinder 6. For small pigment particles, it is easier to move with the airflow. Under the action of the airflow gathering force generated by the inverted conical fan blades 12, the powdered pigment gathers toward the rotation center, thereby realizing the separation of pigment particles and pigment powder, which is convenient for testing the dispersion of the pigment.

[0043] The controller 34 controls the speed of the power end of the centrifugal motor 7 to decrease, and the centrifugal force on the pigment particles at the top of the inverted cone 6 is weakened, causing them to slide down the cone wall. The light beam generated by the irradiation lamp 17 passes through the powder pigment layer, the light intensity glass layer 35 and the light-transmitting glass layer 14, and is sensed by the light intensity sensor 16. The light intensity sensor 16 detects the light intensity transmitted by the light-transmitting glass layer 14. When the detected light intensity meets the user's requirements, it indicates that the pigment is fully ground and the pigment viscosity is low, and the dispersion of the ground pigment meets the requirements.

[0044] When the dispersed pigment is detected to have pigment particles that have not been completely ground into powder, in order to ensure that the pigment has a smaller particle size and meets the painting requirements, when the light intensity sensor 16 detects that the light intensity emitted from the inside of the inverted cone 6 is no longer changing, the controller 34 controls the hydraulic cylinder 21 to start, the power end of the hydraulic cylinder 21 extends, and the hydraulic cylinder 21 drives the grinding ball 27 at its upper end to fit the upper inner wall of the inverted cone 6 through the grinding frame 25. Subsequently, the controller 34 controls the annular electromagnet 3 0 is started, the annular electromagnet 30 is energized to generate magnetism, and the annular electromagnet 30 and the side-pull magnet 31 are arranged with opposite poles. The annular electromagnet 30 is fixed to the side wall of the support rod 29 and attracts the side-pull magnet 31 through magnetic force. The side-pull magnet 31 uses the deformation of the return spring 32 to drive the lower end of the grinding frame 25 to approach the inner wall of the inverted cone 6. The grinding frame 25 drives the grinding balls 27 at its lower end to fit into the inner wall of the inverted cone 6, so that the grinding balls 27 on the side wall of the grinding frame 25 completely fit into the inner wall of the inverted cone 6.

[0045] During the rotation of the inverted cone 6, the grinding balls 27 roll along the inner wall of the inverted cone 6 to grind the granular pigments. Since the pigment particles entering the interior of the inverted cone 6 are the ground pigment particles, in order to avoid the pigment particles being subjected to a long-term grinding operation, which causes the pigment particles to agglomerate, the particles to become larger, and the dispersion to deteriorate, the pigment particles remaining on the inner wall of the inverted cone 6 are ground into powder and then adsorbed away from the interior of the inverted cone 6 under the airflow gathering of the inverted cone fan blades 12, thereby reducing the probability of the pigment agglomerating due to long-term grinding, improving the dispersion performance of the pigment, and ensuring the painting effect; just repeat the above operation when using it next time.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above description of the present solution and its implementation methods is non-limiting. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present solution, designs a similar structure and embodiment without creatively designing, they shall fall within the scope of protection of the present solution.

Claims

1. A device for testing the dispersion of pigments used in painting, comprising a base and a testing tube, characterized in that: It also includes a double cone dispersion mechanism and an anti-coagulation grinding mechanism, and the test cylinder is arranged on the upper wall of the base; The double cone dispersion mechanism includes a centrifugal mechanism, a flow-converging mechanism and a concentration measuring mechanism; The centrifugal mechanism is arranged on the inner wall of the test cylinder, the flow focusing mechanism is arranged on the top wall of the test cylinder, and the concentration measuring mechanism is arranged on the side wall of the test cylinder; The anti-coagulation type grinding mechanism includes a wall-adhering mechanism and a bottom-pulling mechanism. The wall-adhering mechanism is arranged inside the centrifugal mechanism, and the bottom-pulling mechanism is arranged on the bottom wall of the test cylinder. The centrifugal mechanism includes a rotating ring and an inverted cone; The rotating ring is rotatably arranged on the upper inner wall of the test cylinder, and the inverted cone is arranged on the bottom wall of the rotating ring, and the inverted cone is opened at the upper end; The flow converging mechanism includes a flow converging motor and a flow converging shaft; The flow-gathering motor is arranged on the upper wall of the test tube, and the flow-gathering shaft passes through the test tube and is arranged at the power end of the flow-gathering motor; The wall-adhering mechanism includes a fixed block, a hydraulic cylinder, a guide table, a connecting frame, a connecting shaft, a grinding frame, a semi-cylinder and grinding balls; Multiple groups of fixed blocks are arranged on the upper wall of the test cylinder, the hydraulic cylinder is hingedly arranged at the end of the fixed block away from the upper wall of the test cylinder, the guide table is rotatably arranged between the bottom wall of the inverted cone and the flow-converging axis, multiple groups of connecting frames are hingedly arranged at the end of the guide table away from the flow-converging axis, the connecting shaft is rotatably arranged at the end of the connecting frame away from the guide table, the grinding frame is arranged outside the connecting shaft, the end of the grinding frame away from the connecting shaft is hingedly arranged at the end of the hydraulic cylinder away from the fixed block, multiple groups of semi-cylinders are arranged at the end of the grinding frame close to the inner wall of the inverted cone, the semi-cylinder is opened at one end, and the grinding ball is rolled at the end of the semi-cylinder away from the grinding frame; The bottom pull mechanism includes a support rod, an annular electromagnet, a side pull magnet, a return spring and a return plate; Multiple groups of support rods are arranged on the bottom wall of the test cylinder outside the inverted cone cylinder, the annular electromagnet is arranged on the side of the support rod close to the inverted cone cylinder, the annular electromagnet is arranged on the outside of the inverted cone cylinder, the side pulling magnet is arranged on the side wall of one end of the grinding frame close to the connecting shaft, the annular electromagnet and the side pulling magnet are arranged opposite to each other, the reset plate is symmetrically arranged on both sides of the connecting shaft, and the reset spring is arranged between the connecting frame and the reset plate outside the connecting shaft.

2. The device for testing the dispersion of painting pigments according to claim 1, wherein: The centrifugal mechanism further comprises a centrifugal motor and a centrifugal shaft. The centrifugal motor is arranged on the bottom wall of the test cylinder below the inverted cone cylinder, and the centrifugal shaft is between the power end of the centrifugal motor and the inverted cone cylinder.

3. The device for testing the dispersion of painting pigments according to claim 1, wherein: The flow-converging mechanism further includes inverted conical blades, a plurality of groups of the inverted conical blades are arranged outside the flow-converging shaft, and the inverted conical blades are arranged inside the inverted conical cylinder.

4. The device for testing the dispersion of painting pigments according to claim 1, wherein: The concentration measuring mechanism includes a translucent glass layer, a concentration measuring seat and a light intensity sensor. Multiple groups of the translucent glass layers are arranged through the inner wall of the test cylinder, the concentration measuring seat is arranged outside the test cylinder, and the light intensity sensor is arranged through the inner wall of one end of the concentration measuring seat close to the translucent glass layer.

5. The device for testing the dispersion of painting pigments according to claim 1, wherein: The concentration measuring mechanism also includes irradiation lamps and light intensity glass layers. Multiple groups of irradiation lamps are arranged on the upper wall of the test cylinder, and multiple groups of light intensity glass layers are arranged through the inner wall of the top of the inverted cone cylinder. The light intensity glass layer is arranged horizontally with the inner wall of the inverted cone cylinder.

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