Powder crushing device for gouache mixing

Abstract

The powder crushing device for gouache mixing comprises a first mounting frame, a second mounting frame is arranged at the top of the first mounting frame, frame feet are arranged at the four corners of the bottom of the first mounting frame, mixing assemblies are mounted on the left side and the right side of the top of the first mounting frame, and crushing assemblies are mounted on the left side and the right side of the top of the second mounting frame; a screening assembly is installed at the bottom of the crushing assembly, the crushing assembly comprises a driving motor, the driving motor is installed on the left side in a first installation frame, a driving wheel is installed at the output end of the driving motor, the left side of the outer wall of the driving wheel is sleeved with a first belt, and a driving wheel is arranged on the inner wall of the first belt. And a second belt is arranged on the right side of the outer wall of the driving wheel, pigment particles which possibly exist in the powder crushing device and cannot be completely crushed can be screened, so that agglomeration caused by pigment blocks and pigment powder is reduced, the particles which are not crushed after screening are subjected to secondary crushing, and the pigment utilization and crushing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pigment processing, in particular to a powder crushing device for gouache pigment mixing. Background Art

[0002] A gouache paint mixing device is a device used to effectively mix the different components of gouache paint. This device usually includes a stirring or mixing mechanism that can evenly combine pigment powder with water or other liquid media to ensure the uniformity and stability of the pigment. Its design may include a rotary agitator, a vibrator, a grinding device, etc. to meet different mixing requirements and improve mixing efficiency. The powder crushing device plays a key role in the gouache paint mixing process. It ensures the uniformity, stability and quality of the final pigment by refining pigment particles, reducing agglomeration, and improving mixing effects. This not only improves the mixing efficiency, but also ensures the consistency and stability of the pigment during the production process.

[0003] At present, there is no dedicated gouache pigment mixing device. For example, the public document with announcement number CN219580658U, publication date 2023-08-25, and patent name "Activated Carbon Powder Crushing Equipment" discloses activated carbon powder crushing equipment, including a crushing box, a discharge hopper, support legs, a feed hopper, a crushing chamber, a grinding chamber, an active crushing roller, a driven crushing roller, an activated carbon outlet, a powder filter, a grinding roller, grinding teeth, a discharge pipe and a discharge valve. The discharge hopper is fixedly arranged below the crushing box, the support legs are fixedly arranged below the crushing box, the feed hopper is fixedly arranged above the crushing box, the crushing chamber is arranged in the upper end of the crushing box, the grinding chamber is arranged in the lower end of the crushing box but below the crushing chamber, the grinding chamber is connected to the discharge hopper, and the active crushing roller is rotatably arranged in the crushing chamber. Similar devices are not suitable for mixing and crushing gouache pigments.

[0004] At present, when a powder crushing device is used to crush pigment blocks, if the above device or manual grinding is used, it will affect the subsequent gouache pigment mixing, and the powder crushing device may fail to completely crush the pigment particles, causing agglomeration, which will reduce the mixing efficiency of the gouache pigment. At the same time, when mixing the gouache pigment, a large amount of pigment powder may adhere to the inner wall of the barrel, resulting in a decrease in the mixing efficiency of water and pigment. Therefore, the present application proposes a powder crushing device for gouache pigment mixing to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to realize a powder crushing device for gouache pigment mixing, so as to solve the problems raised in the above background technology that the powder crushing device may fail to completely crush the pigment particles, causing agglomeration, and a large amount of pigment powder may adhere to the inner wall of the barrel, resulting in reduced mixing efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a powder crushing device for mixing gouache pigments, comprising a mounting frame 1, a mounting frame 2 is provided on the top of the mounting frame 1, and legs are provided at the four corners of the bottom of the mounting frame 1, a mixing assembly is installed on the left and right sides of the top of the mounting frame 1, a crushing assembly is installed on the left and right sides of the top of the mounting frame 2, a screening assembly is installed at the bottom of the crushing assembly, and the crushing assembly includes a driving motor, the driving motor is installed on the left side of the mounting frame 1, a driving wheel is installed on the output end of the driving motor, a belt 1 is sleeved on the left side of the outer wall of the driving wheel, a driving wheel is provided on the inner wall of the belt 1, a belt 2 is provided on the right side of the outer wall of the driving wheel, and a driven wheel is provided on the inner wall of the belt 2. Wheel, the inner wall of the driven wheel is provided with a rotating shaft, the left and right sides of the outer wall of the rotating shaft are provided with mounting parts 2, a crushing bucket is provided in the frame of the mounting frame 2, a barrel cover 3 is provided on the right side of the inner wall of the crushing bucket, a feeding pipe is provided on the top of the outer wall of the crushing bucket, a plurality of crushing knives are provided on the outer wall of the rotating shaft, a discharge pipe is provided on the bottom of the outer wall of the crushing bucket, the screening assembly includes a screening box, the screening box is arranged at the bottom of the discharge pipe, a plurality of limiting cylinders are provided on the inner wall of the screening box, a plurality of springs 2 are provided on the inner wall of the limiting cylinder, a sliding rod is provided on the top of the spring 2, a screen plate is provided on the top of the plurality of sliding rods, a vibration motor is provided on the bottom of the screen plate, a discharging plate is provided on the front side of the screening box, and a sliding connection with a limiting plate is provided on the inner wall of the discharging plate.

[0007] As a further description of the above technical solution: the crushed pigment is screened by a sieve plate to improve the utilization rate of the pigment.

[0008] Furthermore, the mixing assembly includes a driving shaft, which is arranged on the inner wall of the driving wheel, and mounting parts 1 are arranged on both sides of the outer wall of the driving shaft, a paint mixing barrel is arranged in the mounting frame 1, a barrel cover 1 is arranged on the right side of the paint mixing barrel, and a barrel cover 2 is arranged on the left side of the paint mixing barrel, a plurality of stirring rods are arranged on the outer wall of the driving shaft, a connecting rod is arranged on one side of the stirring rod, a plurality of springs 1 are arranged on the inner wall of the connecting rod, a scraper is arranged on one side of the spring 1, a water inlet pipe is arranged on the right side of the top of the outer wall of the paint mixing barrel, a water valve is arranged on the outer wall of the water inlet pipe, a discharge pipe is arranged on the right side of the bottom of the outer wall of the paint mixing barrel, and a valve is arranged on the outer wall of the discharge pipe.

[0009] As a further description of the above technical solution: by mixing the sieved pigment powder with water, and at the same time scraping the powder on the inner wall of the pigment mixing barrel with a scraper, the mixing efficiency of the gouache pigment is improved.

[0010] Furthermore, the screening box is arranged on the left side of the top of the outer wall of the paint mixing barrel, the barrel cover is passed through the right side of the outer wall of the rotating shaft, and the crushed material barrel is passed through the left side of the inner wall of the rotating shaft.

[0011] As a further description of the above technical solution: the rotating shaft runs through the barrel cover three and the crushing barrel, so that the rotating shaft is more stable when rotating.

[0012] Furthermore, the two mounting parts 2 are both arranged on the left and right sides of the top of the mounting frame 2, one of the mounting parts 2 is arranged on the left side of the crushing barrel, and the barrel cover 3 is arranged on the left side of the other mounting part 2.

[0013] As a further description of the above technical solution: the crushing barrel is installed and fixed by means of a second mounting member to prevent shaking during crushing.

[0014] Furthermore, the barrel cover 1 penetrates through the right side of the outer wall of the driving shaft, and the barrel cover 2 penetrates through the left side of the outer wall of the driving shaft.

[0015] As a further description of the above technical solution: the drive shaft is passed through barrel cover 1 and barrel cover 2, so that the drive shaft is more stable during driving.

[0016] Furthermore, the plurality of scrapers are all slidably connected to the inner wall of the connecting rod, and one side of the plurality of scrapers is attached to the inner wall of the paint mixing barrel.

[0017] As a further description of the above technical solution: the scraper is attached to the inner wall of the paint mixing barrel, so that the powder in the paint mixing barrel can be scraped off.

[0018] Furthermore, the plurality of sliding rods are all slidably connected to the inner wall of the limiting cylinder, and the screen plate is slidably connected to the left and right sides of the inner wall of the screening box.

[0019] As a further description of the above technical solution: the sliding rod is limited by the limiting cylinder to prevent the sliding rod from sliding out of the inner wall of the limiting cylinder.

[0020] Furthermore, the driving shaft is rotatably connected to the left and right sides of the top of the first mounting frame, and the rotating shaft is rotatably connected to the left and right sides of the top of the second mounting frame.

[0021] As a further description of the above technical solution: by installing the drive shaft on the frame of the mounting frame 1, the drive shaft is prevented from shaking when being driven.

[0022] As a further description of the above technical solution: a vibrator is fixed outside the paint mixing barrel, and the vibrator works when the paint mixing barrel is working, and the vibration frequency increases with the increase of the driving shaft speed. This can avoid blockage in the paint mixing barrel, especially in humid weather and when the paint is damp.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, by means of the mutual cooperation among the mounting part 2, the crushing barrel, the barrel cover 3, the feed pipe, the crushing knife, the discharge pipe and other structures, the pigment particles that may not be completely crushed by the powder crushing device can be screened, thereby reducing the agglomeration of pigment blocks and pigment powder, and the particles that cannot be crushed after screening are crushed for the second time, thereby improving the utilization and crushing efficiency of the pigment.

[0025] 2. In the present invention, a large amount of pigment powder attached to the pigment mixing barrel can be scraped off through the mutual cooperation between the pigment mixing barrel, the stirring rod, the connecting rod, the spring, the scraper, the water pipe, the water valve and other structures, so that the crushed pigment powder can be fully mixed with water, reducing the mechanical energy accumulation of the pigment powder on the inner wall of the pigment mixing barrel, and improving the mixing efficiency of gouache pigment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following is a brief description of the contents expressed in each figure in the specification of the present invention and the marks in the figure:

[0027] Figure 1 This is a schematic diagram of a three-dimensional structure of a mounting frame of the present invention;

[0028] Figure 2 This is a structural schematic diagram of the second mounting frame of the present invention;

[0029] Figure 3 This is a schematic diagram of the rotating shaft structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the push rod crushing barrel of the present invention;

[0031] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of the slide rod of the present invention.

[0034] The marks in the above figures are: 1. Mounting frame one; 2. Mounting frame two; 3. Frame foot; 4. Driving motor; 5. Driving wheel; 6. Belt one; 7. Driving wheel; 8. Driving shaft; 9. Mounting piece one; 10. Bucket cover one; 11. Bucket cover two; 12. Paint mixing bucket; 13. Stirring rod; 14. Connecting rod; 15. Spring one; 16. Scraper; 17. Water inlet pipe; 18. Water valve; 19. Discharge pipe; 20. Valve; 21. Belt two; 22. Driven wheel; 23. Rotating shaft; 24. Mounting piece two; 25. Crushing bucket; 26. Bucket cover three; 27. Feed pipe; 28. Crushing knife; 29. ​​Discharge pipe; 30. Screen box; 31. Discharge plate; 32. Limit plate; 33. Vibration motor; 34. Screen plate; 35. Sliding rod; 36. Spring two; 37. Limit cylinder. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the specific implementation methods of the present invention, such as the shape, structure, relative position and connection relationship between the various components involved, the function and working principle of each part, the manufacturing process and operation method, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0036] like Figures 1 to 7As shown, a powder crushing device for mixing gouache pigments comprises a mounting frame 1, a mounting frame 2 is provided on the top of the mounting frame 1, legs 3 are provided at the four corners of the bottom of the mounting frame 1, mixing components are installed on the left and right sides of the top of the mounting frame 1, crushing components are installed on the left and right sides of the top of the mounting frame 2, a screening component is installed at the bottom of the crushing component, the crushing component comprises a driving motor 4, the driving motor 4 is installed on the left side of the frame of the mounting frame 1, a driving wheel 5 is installed on the output end of the driving motor 4, a belt 16 is sleeved on the left side of the outer wall of the driving wheel 5, a driving wheel 7 is provided on the inner wall of the belt 16, a belt 21 is provided on the right side of the outer wall of the driving wheel 7, a driven wheel 22 is provided on the inner wall of the belt 21, a rotating shaft 23 is provided on the inner wall of the driven wheel 22, a mounting piece 24 is provided on the left and right sides of the outer wall of the rotating shaft 23, a plurality of crushing barrels 25 are provided in the frame of the mounting frame 2, a barrel cover 3 26 is provided on the right side of the inner wall of the crushing barrel 2 5 is provided with a feeding pipe 27 at the top of the outer wall, a plurality of crushing knives 28 are provided on the outer wall of the rotating shaft 23, a discharge pipe 29 is provided at the bottom of the outer wall of the crushing barrel 25, and the screening component includes a screening box 30, the screening box 30 is arranged at the bottom of the discharge pipe 29, the inner wall of the screening box 30 is provided with a limiting cylinder 37, the inner wall of the limiting cylinder 37 is provided with a plurality of springs 36, the top of the spring 36 is provided with a sliding rod 35, and the tops of the plurality of sliding rods 35 are all provided with a screening plate 34, and the bottom of the screening plate 34 is provided with a vibration motor 33. This design is to make the inclination angle of the screening plate 34 and the inner wall of the screening box 30 reach 15 degrees, so that the lowest end is aligned with the rear side of the discharging plate 31, and the front side of the screening box 30 is provided with a discharging plate 31, and the inner wall of the discharging plate 31 is provided with a sliding connection with a limiting plate 32. This design is to pull out the limiting plate 32 on the inner wall of the discharging plate 31 so as to remove the pigment particles that have not been completely crushed, thereby avoiding adverse effects on subsequent screening operations.

[0037] The mixing assembly includes a driving shaft 8, which is arranged on the inner wall of the driving wheel 7. The outer wall of the driving shaft 8 is provided with mounting pieces 9 on both sides. A paint mixing barrel 12 is provided in the frame of the mounting frame 1. A barrel cover 10 is provided on the right side of the paint mixing barrel 12, and a barrel cover 2 11 is provided on the left side of the paint mixing barrel 12. A plurality of stirring rods 13 are provided on the outer wall of the driving shaft 8. This design is to allow the sieved paint to enter the paint mixing barrel 12, so that the two sides of the paint mixing barrel 12 are closed by the barrel cover 10 and the barrel cover 2 11, and then the paint mixing barrel 12 is installed on the frame of the mounting frame 1 through the mounting piece 9, so that the driving shaft 8 drives the stirring rod 13 to stir the sieved paint, and a connecting rod 14 is provided on one side of the stirring rod 13, and a plurality of springs 15 are provided on the inner wall of the connecting rod 14. A scraper 16 is provided on one side of the connecting rod 14. The scraper 16 is designed to fit the inner wall of the paint mixing barrel 12 under the action of the elastic force of multiple springs 15 inside the connecting rod 14, so that the paint powder attached to the inner wall of the paint mixing barrel 12 can be scraped off. A water inlet pipe 17 is provided on the right side of the top of the outer wall of the paint mixing barrel 12, and a water valve 18 is provided on the outer wall of the water inlet pipe 17. The water valve 18 is opened to allow water to flow into the paint mixing barrel 12 through the water inlet pipe 17, so that the water and the paint powder are stirred. A discharge pipe 19 is provided on the right side of the bottom of the outer wall of the paint mixing barrel 12, and a valve 20 is provided on the outer wall of the discharge pipe 19. The valve 20 is opened to allow the fully stirred gouache paint to be discharged and collected through the discharge pipe 19.

[0038] The screening box 30 is arranged on the left side of the top of the outer wall of the paint mixing barrel 12. This design is to screen the crushed paint. The barrel cover 3 26 runs through the right side of the outer wall of the rotating shaft 23, and the crushed material barrel 25 runs through the left side of the inner wall of the rotating shaft 23. Two mounting parts 24 are arranged on the left and right sides of the top of the mounting frame 22, one of the mounting parts 24 is arranged on the left side of the crushed material barrel 25, and the barrel cover 3 26 is arranged on the left side of the other mounting part 24. This design is to install the crushed material barrel 25 and the barrel cover 3 26 on the frame of the mounting frame 22 through the mounting part 24, and at the same time make the rotating shaft 23 more stable during the rotation process. The barrel cover 10 runs through the right side of the outer wall of the driving shaft 8, and the barrel cover 2 11 runs through the left side of the outer wall of the driving shaft 8. This design is to install the barrel cover 10 and the barrel cover 2 11 on both sides of the paint mixing barrel 12, so that the paint mixing barrel 12 is more stable on the frame of the mounting frame 1, and multiple scrapers 16 are slidably connected to the inner wall of the connecting rod 14 The sieve plate 34 is slidably connected to the left and right sides of the inner wall of the sieve box 30. The sieve plate 34 is slidably connected to the left and right sides of the inner wall of the sieve box 30. The sieve plate 34 is slidably connected to the left and right sides of the inner wall of the sieve box 30. The sieve plate 34 is slidably connected to the left and right sides of the inner wall of the sieve box 30. The sieve plate 34 is slidably connected to the left and right sides of the top of the mounting frame 1. The rotating shaft 23 is rotatably connected to the left and right sides of the top of the mounting frame 2. The sieve plate 34 is slidably connected to the left and right sides of the inner wall of the sieve box 30.

[0039] The working process of the present invention is as follows: by opening the output end of the connecting rod 14 in the mounting frame 1, the driving wheel 5 is driven to rotate, and then the belt 1 6 is sleeved on the outer wall of the driving wheel 5 and the driving wheel 7, and then the belt 21 is sleeved on the outer wall of the driving wheel 7 and the driven wheel 22, thereby driving the outer wall of the rotating shaft 23. Multiple crushing knives 28 are rotated, and then the block pigment is put into the crushing barrel 25 from the feeding pipe 27, and the barrel cover 3 26 is installed on one side of the crushing barrel 25, and then the mounting part 24 is installed. The crushing barrel 25 is mounted on the mounting frame 2, and the block pigment is crushed by the crushing knife 28, and then the crushed pigment enters the inside of the screening box 30 through the feeding pipe 29, and then the vibration motor 33 is turned on, and the sliding rod 35 moves on the inner wall of the limit cylinder 37 under the action of the elastic force of the spring 2 36, so that the screen plate 34 vibrates up and down on the inner wall of the screening box 30, and then the crushed pigment is screened. After screening, the pigment remaining on the screen plate 34 that has not been completely crushed The pigment particles can be taken out by pulling out the limit plate 32 on the inner wall of the discharge plate 31, so that the pigment particles that have not been completely crushed can be taken out to prevent affecting the subsequent screening work, and then the screened pigment enters the pigment mixing barrel 12, so that the two sides of the pigment mixing barrel 12 are closed by the barrel cover 10 and the barrel cover 2 11, and then the pigment mixing barrel 12 is installed on the frame of the mounting frame 1 through the mounting member 9, and then the driving shaft 8 drives the stirring rod 13 to stir the screened pigment, and then by opening the water valve 18, water flows into the interior of the pigment mixing barrel 12 through the water inlet pipe 17, so that the water and the pigment powder are stirred, and at the same time, under the action of the elastic force of multiple springs 15 inside the connecting rod 14, the scraper 16 can be attached to the inner wall of the pigment mixing barrel 12, and then the pigment powder attached to the inner wall of the pigment mixing barrel 12 can be scraped off, thereby improving the utilization rate of the gouache pigment, and then by opening the valve 20, the fully stirred gouache pigment is discharged and collected through the discharge pipe 19.

[0040] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A powder crushing device for mixing gouache pigments, characterized in that: It comprises a mounting frame 1 (1), a mounting frame 2 (2) is arranged on the top of the mounting frame 1 (1), legs (3) are arranged at the four corners of the bottom of the mounting frame 1 (1), mixing components are arranged on the left and right sides of the top of the mounting frame 1 (1), crushing components are arranged on the left and right sides of the top of the mounting frame 2 (2), and a screening component is arranged at the bottom of the crushing component; The crushing assembly comprises a driving motor (4), the driving motor (4) being mounted on the left side of the mounting frame (1), a driving wheel (5) being mounted on the output end of the driving motor (4), a belt (6) being sleeved on the left side of the outer wall of the driving wheel (5), a driving wheel (7) being disposed on the inner wall of the belt (6), a belt (21) being disposed on the right side of the outer wall of the driving wheel (7), a driven wheel (22) being disposed on the inner wall of the belt (21), and the driven wheel ( 22) is provided with a rotating shaft (23), the outer wall of the rotating shaft (23) is provided with mounting parts 2 (24) on both left and right sides, a crushing barrel (25) is provided inside the mounting frame 2 (2), a barrel cover 3 (26) is provided on the right side of the inner wall of the crushing barrel (25), a feeding pipe (27) is provided on the top of the outer wall of the crushing barrel (25), a plurality of crushing knives (28) are provided on the outer wall of the rotating shaft (23), and a discharge pipe (29) is provided on the bottom of the outer wall of the crushing barrel (25); The screening assembly comprises a screening box (30), wherein the screening box (30) is arranged at the bottom of the feeding pipe (29), the inner wall of the screening box (30) is provided with a plurality of limiting cylinders (37), the inner wall of the limiting cylinder (37) is provided with a plurality of springs (36), the top of the springs (36) is provided with a sliding rod (35), the tops of the plurality of sliding rods (35) are all provided with a screening plate (34), the bottom of the screening plate (34) is provided with a vibration motor (33), the front side of the screening box (30) is provided with a discharging plate (31), the inner wall of the discharging plate (31) is provided with a sliding connection with a limiting plate (32).

2. A gouache pigment mixing powder crushing device according to claim 1, characterized in that: The mixing assembly comprises a driving shaft (8), the driving shaft (8) being arranged on the inner wall of the driving wheel (7), the outer wall of the driving shaft (8) being provided with mounting members (9) on both the left and right sides, a paint mixing barrel (12) being arranged inside the mounting frame (1), a barrel cover (10) being arranged on the right side of the paint mixing barrel (12), a barrel cover (11) being arranged on the left side of the paint mixing barrel (12), a plurality of stirring rods (13) being arranged on the outer wall of the driving shaft (8), the stirring rods (13) being arranged on the outer wall of the driving shaft (8), and the stirring rods (13) being arranged on the outer wall of the driving shaft (8). A connecting rod (14) is provided on one side of the rod (13), a plurality of springs (15) are provided on the inner wall of the connecting rod (14), a scraper (16) is provided on one side of the spring (15), a water inlet pipe (17) is provided on the right side of the top of the outer wall of the paint mixing barrel (12), a water valve (18) is provided on the outer wall of the water inlet pipe (17), a discharge pipe (19) is provided on the right side of the bottom of the outer wall of the paint mixing barrel (12), and a valve (20) is provided on the outer wall of the discharge pipe (19).

3. A gouache pigment mixing powder crushing device according to claim 2, characterized in that: The screening box (30) is arranged on the left side of the top of the outer wall of the paint mixing barrel (12), the barrel cover (26) penetrates the right side of the outer wall of the rotating shaft (23), and the crushing barrel (25) penetrates the left side of the inner wall of the rotating shaft (23).

4. A gouache pigment mixing powder crushing device according to claim 1, characterized in that: The two mounting parts 2 (24) are both arranged on the left and right sides of the top of the mounting frame 2 (2), one of the mounting parts 2 (24) is arranged on the left side of the crushing barrel (25), and the barrel cover 3 (26) is arranged on the left side of the other mounting part 2 (24).

5. A gouache pigment mixing powder crushing device according to claim 2, characterized in that: The barrel cover 1 (10) penetrates the right side of the outer wall of the driving shaft (8), and the barrel cover 2 (11) penetrates the left side of the outer wall of the driving shaft (8).

6. A gouache pigment mixing powder crushing device according to claim 2, characterized in that: The plurality of scrapers (16) are all slidably connected to the inner wall of the connecting rod (14), and one side of the plurality of scrapers (16) is attached to the inner wall of the paint mixing barrel (12).

7. A gouache pigment mixing powder crushing device according to claim 1, characterized in that: The plurality of sliding rods (35) are all slidably connected to the inner wall of the limiting cylinder (37), and the sieve plate (34) is slidably connected to the left and right sides of the inner wall of the sieving box (30).

8. A gouache pigment mixing powder crushing device according to claim 2, characterized in that: The driving shaft (8) is rotatably connected to the left and right sides of the top of the first mounting frame (1), and the rotating shaft (23) is rotatably connected to the left and right sides of the top of the second mounting frame (2).

9. A gouache pigment mixing powder crushing device according to claim 8, characterized in that: A vibrator is fixed outside the paint mixing barrel (16), and the vibrator works when the paint mixing barrel (16) works, and the vibration frequency increases as the rotation speed of the driving shaft (8) increases.

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