Gradient stirring structure of powder coating mixer

By introducing a material conveying system consisting of a conveyor belt and brushes, along with a motor-driven cleaning mechanism, into the powder coating mixer, the problems of complex mixing structures and difficult cleaning in existing technologies have been solved, achieving efficient material conveying and cleaning, and improving production efficiency and product quality.

CN224167331UActive Publication Date: 2026-04-28WUHAN QIYUE NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN QIYUE NEW MATERIALS CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing powder coating mixers have complex mixing structures, high maintenance costs, and are difficult to clean, which can easily cause material contamination, affecting production efficiency and product quality.

Method used

A gradient mixing structure for a powder coating mixer was designed, including a conveyor belt and brushes for material conveying and cleaning, a cleaning mechanism for automatic cleaning of the mixing tank, and a gear and rack transmission system driven by a motor to realize the cleaning and mixing functions.

Benefits of technology

It simplifies the material handling and cleaning process, reduces equipment maintenance costs, improves production efficiency and product quality, and ensures thorough cleaning of mixed materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of powder coating mixing, and discloses a gradient stirring structure of a powder coating mixer, which comprises a feed port, the left side of the top of the feed port is in threaded connection with a bolt I, the left side of the feed port is provided with a conveyor belt channel, and the rear side of the feed port is provided with a motor II; a first conveying belt is installed at the output end of the second motor, a second rotating shaft is rotationally connected to the upper middle portion of the left side of the front end of the first conveying belt, and a first gear is rotationally connected to the upper middle portion of the front end of the first conveying belt. According to the material mixing device, materials need to be poured into the material mixing barrel before being mixed, due to the fact that the material mixing barrel is high, a conveying belt is needed, the process of pouring the materials is not complex, and only the materials need to be poured into a feeding opening, and a brush is further installed at the bottom of the left side of the conveying belt. Materials attached to the conveying belt can be brushed off while the materials are fed, and cleanliness of the conveying belt is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of powder coating mixing technology, and in particular to the gradient stirring structure of a powder coating mixer. Background Technology

[0002] The gradient mixing structure of a mixer is a device used for mixing powder coatings. It uses mixing blades with different speeds and directions to create a gradient flow of powder coatings during the mixing process. As the core supporting component of the entire mixing structure, it is usually vertically installed inside the mixer and driven by a motor and reducer, which drives other components to rotate together. The lifting blades are installed on the mixing main shaft and are spirally upward, with the blade width gradually increasing. Their function is to lift the powder coating material located at the bottom of the mixer upward. As the blade width increases, the amount of material lifted also gradually increases, so that the material forms a gradient distribution during the upward process. Then, it is fixed to the mixing main shaft by a connecting arm, located outside the lifting blades and installed higher than the lifting blades, spiraling downward with the spiral direction opposite to that of the lifting blades, thereby achieving the purpose of uniform mixing.

[0003] However, this type of mixing column has high structural requirements. Due to its relatively complex mixing method, the rotation speed and direction of the mixing blades need to be precisely controlled, resulting in relatively low mixing efficiency and high equipment maintenance costs. It has a relatively complex mechanical transmission system and control system to achieve control of the rotation speed and direction of different mixing blades. During equipment operation, if a component fails, repair is cumbersome, requiring professional technicians and a long repair time. Furthermore, due to the complexity of the internal structure, powder coatings tend to adhere to the mixing blades, container walls, and other parts, leaving corners and gaps that cannot be reached. Therefore, cleaning the equipment is relatively difficult. Incomplete cleaning can lead to residual powder coatings contaminating the materials to be mixed next time, thus affecting production efficiency and product quality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a gradient mixing structure for a powder coating mixer, which aims to improve the existing technology where powder coatings tend to adhere to the mixing blades, container walls, and other parts, leaving corners and gaps that cannot be reached. As a result, cleaning the equipment is relatively difficult, and incomplete cleaning can cause residual powder coatings to contaminate the materials to be mixed next time, thus affecting production efficiency and product quality.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a gradient stirring structure for a powder coating mixer, including a feed inlet, a bolt threaded to the top left side of the feed inlet, a conveyor belt channel installed on the left side of the feed inlet, a motor installed on the rear side of the feed inlet, a conveyor belt installed at the output end of the motor, a rotating shaft rotatably connected to the upper left side of the front end of the conveyor belt, a gear rotatably connected to the upper left side of the front end of the conveyor belt, a rotating shaft rotatably connected to the bottom left side of the rotating shaft, a brush fixedly connected to the rear side of the rotating shaft, a fixed circular plate on the bottom left side of the brush, a power rod inside the fixed circular plate, a gear rotatably connected to the front side of the rotating shaft, the gear rotatably meshing with the gear, and a cleaning mechanism on the bottom left side of the feed inlet, which cleans the inside of the mixer after the mixing process is completed.

[0006] As a further description of the above technical solution:

[0007] The cleaning mechanism includes a motor three, which is located at the bottom front of the spillway. The output end of the motor three is fixedly connected to a gear and rack drive one. The rear left side of the gear and rack drive one is rotatably connected to a rotating shaft four. The end of the rotating shaft four is rotatably connected to a gear three. The rear left side of the gear three is meshed with a rack three. A mixing tank is fixedly connected to the lower middle part of the inner wall of the rack three. A water pump is located on the bottom left side of the motor three. Water pipes are connected to both sides of the water pump.

[0008] As a further description of the above technical solution:

[0009] The top of the fixed circular plate is provided with a cover, and hinges are fixedly connected to the front and rear sides of the top wall of the cover. A soundproof cover is installed inside the fixed circular plate, and a ladder is provided on the left front side of the soundproof cover. A bracket is threadedly connected to the bottom of the conveyor belt channel.

[0010] As a further description of the above technical solution:

[0011] A bolt is threaded to the top left side of the feed inlet, a dust cover is threaded to the top left side of the feed inlet, a spill prevention cover is installed on the upper left side of the dust cover, and a spill prevention port is installed at the end of the spill prevention cover.

[0012] As a further description of the above technical solution:

[0013] The fixed circular plate has a discharge port at the bottom center, and a collection box is provided on the left side of the bottom rear end of the discharge port. The collection box has handles installed on both the front and rear sides of its top wall.

[0014] As a further description of the above technical solution:

[0015] A fixed circular plate is provided on the left side of the conveyor belt channel. Fixed columns are fixedly connected to the outer perimeter of the fixed circular plate, and a fixed plate is threadedly connected to the left front end of the fixed circular plate.

[0016] As a further description of the above technical solution:

[0017] A fixing plate is fixedly connected to the left front end of the fixed circular plate. A motor is fixedly connected to the left front end of the fixing plate. A rotating shaft is fixedly connected to the output end of the motor. A gear and rack transmission is rotatably connected to the middle of the rotating shaft. A power rod is rotatably connected to the right rear end of the gear and rack transmission. Stirring columns are rotatably connected to the outer perimeter of the power rod.

[0018] As a further description of the above technical solution:

[0019] The power rod is rotatably connected to a stirring column on all four sides of its outer side, and the stirring column is fixedly connected to a baffle on all four sides of its outer side. The bottom of the stirring column is provided with a discharge port.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the material is poured into the mixing bucket before mixing. Since the mixing bucket is relatively tall, a conveyor belt is needed. This makes pouring the material less complicated. It can be poured into the feed inlet. A brush is also installed on the bottom left side of the conveyor belt. While feeding the material, the brush can also brush off the material attached to the conveyor belt to ensure the cleanliness of the conveyor belt.

[0022] 2. In this utility model, after the mixing work is completed, there will definitely be residual undispensed mixed material on the inner wall of the mixing tank. Over time, this will affect the mixing effect. Therefore, a cleaning mechanism needs to be installed. When the mixing is finished, water can be pumped into the mixing tank through the water pipe. In addition, the outer wall of the mixing tank is equipped with gears, which can clean more thoroughly. Attached Figure Description

[0023] Figure 1 This is a front view of the gradient stirring structure of the powder coating mixer proposed in this utility model;

[0024] Figure 2 This is a perspective view of the gradient stirring structure of the powder coating mixer proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of the gradient stirring structure of the powder coating mixer proposed in this utility model;

[0026] Figure 4 This is a partial structural breakdown diagram of the gradient stirring structure of the powder coating mixer proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the gradient stirring structure of the powder coating mixer proposed in this utility model.

[0028] Legend:

[0029] 1. Feed inlet; 2. Cleaning mechanism; 201. Motor 3; 202. Gear and rack drive 1; 203. Rotating shaft 4; 204. Gear 3; 205. Water pump; 206. Water pipe; 207. Gear 3; 208. Mixing tank; 3. Bolt 1; 4. Conveyor belt channel; 5. Dust cover; 6. Rotating shaft 1; 7. Gear 1; 8. Rotating shaft 2; 9. Spill prevention cover; 10. Gear 2; 11. Spill prevention port; 12. Hinge; 13. Rotating shaft three; 14. Gear and rack transmission two; 15. Cover; 16. Fixed circular plate; 17. Fixed plate; 18. Motor one; 19. Ladder; 20. Soundproof cover; 21. Handle; 22. Collection box; 23. Fixed column; 24. Discharge port; 25. Support; 26. Motor two; 27. Brush; 28. Conveyor belt one; 29. ​​Power rod; 30. Baffle; 31. Stirring column. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 and Figure 4This utility model provides an embodiment of a gradient mixing structure for a powder coating mixer, including a feed inlet 1. A bolt 3 is threadedly connected to the top left side of the feed inlet 1. A conveyor belt channel 4 is installed on the left side of the feed inlet 1. A motor 26 is installed at the rear side of the feed inlet 1. A conveyor belt 28 is installed at the output end of the motor 26. A rotating shaft 8 is rotatably connected to the upper left side of the front end of the conveyor belt 28. A gear 7 is rotatably connected to the upper left side of the front end of the conveyor belt 28. A rotating shaft 6 is located on the bottom left side of the rotating shaft 28. A brush 2 is fixedly connected to the rear side of the rotating shaft 6. 7. A fixed circular plate 16 is provided on the bottom left side of the brush 27. A power rod 29 is provided inside the fixed circular plate 16. A gear 10 is rotatably connected to the front side of the rotating shaft 6. Gear 7 meshes with gear 10. A cleaning mechanism 2 is provided on the bottom left side of the feed inlet 1. The cleaning mechanism 2 cleans the inside of the mixer after the mixing work is completed. A bolt 3 is threadedly connected to the top front left side of the feed inlet 1. A dust cover 5 is threadedly connected to the top left side of the feed inlet 1. A spill cover 9 is installed on the upper left side of the dust cover 5. A spill port 11 is installed at the end of the spill cover 9.

[0032] Specifically, the powder coating mixer has a gradient mixing structure with an inlet 1. The top left side of the inlet 1 is connected by bolt 3, and the left side is connected to the conveyor belt channel 4. The rear side is equipped with a motor 26. The output end of the motor 26 is fixed to the conveyor belt 28. The upper left side of the front end of the conveyor belt 28 has a rotating shaft 8, and the middle of the shaft is a gear 7. The bottom left side of the rotating shaft 28 is a rotating shaft 6. The rear side of the rotating shaft 6 is connected to a brush 27. The bottom left side of the brush 27 has a fixed circular plate 16. The inside of the fixed circular plate 16 is a power rod 29, and the front side is connected to a gear 10. Gear 7 and gear 10 mesh. The bottom left side of the inlet 1 has a cleaning mechanism 2 for cleaning the interior after mixing. The top front left side of the inlet 1 has bolt 3, and the top left side is connected to a dust cover 5. The upper left side of the dust cover 5 is a spill prevention cover 9, and the end of the spill prevention cover 9 is a spill prevention port 11.

[0033] Reference Figure 3 and Figure 5The cleaning mechanism 2 includes a motor 201, which is located at the bottom front of the spill inlet 11. A gear and rack drive 202 is fixedly connected to the output end of the motor 201. A rotating shaft 203 is rotatably connected to the left rear end of the gear and rack drive 202. A gear 204 is rotatably connected to the end of the rotating shaft 203. A rack 207 is meshed with the left rear end of the gear 204. A mixing tank 208 is fixedly connected to the lower middle part of the inner wall of the rack 207. A water pump 205 is located at the bottom left of the motor 201. Water pipes 206 are connected to both the left and right sides of the water pump 205. A cover 15 is located on the top of the fixed circular plate 16. Hinges 12 are fixedly connected to the front and rear sides of the middle part of the top wall of the cover 15. The inner... The unit is equipped with a soundproof cover 20. A ladder 19 is set on the left front end of the soundproof cover 20. A bracket 25 is threadedly connected to the bottom of the conveyor belt channel 4. A fixed circular plate 16 is set on the left side of the conveyor belt channel 4. Fixed columns 23 are fixedly connected to the outer perimeter of the fixed circular plate 16. A fixed plate 17 is threadedly connected to the left front end of the fixed circular plate 16. A motor 18 is fixedly connected to the left front end of the fixed circular plate 16. A rotating shaft 3 13 is fixedly connected to the output end of the motor 18. A gear and rack transmission 2 14 is rotatably connected to the middle of the rotating shaft 3 13. A power rod 29 is rotatably connected to the right rear end of the gear and rack transmission 2 14. A stirring column 31 is rotatably connected to the outer perimeter of the power rod 29.

[0034] Specifically, the cleaning mechanism 2 is driven by motor 3 201, which is located at the bottom front of the spill inlet 11. Its output end is connected to gear and rack transmission 1 202. The left rear end of this transmission device is a rotating shaft 4 203, and at the end of the rotating shaft 4 203 is a gear 3 204, which meshes with rack 3 207. The lower middle part of the inner wall of rack 3 207 is connected to the mixing tank 208. A water pump 205 is located at the bottom left of motor 3 201, and water pipes 206 are connected to both sides of the water pump 205. The top of the fixed circular plate 16 has a cover 1 with a hinge 12. 5. The interior is equipped with a soundproof cover 20. There is a ladder 19 on the left front end of the soundproof cover 20. The bottom of the conveyor belt channel 4 is connected to the bracket 25 by a thread. On the left side is a fixed circular plate 16. There is a fixed column 23 on the outside of the fixed circular plate 16. There is a fixed plate 17 on the left front end of the fixed circular plate 16. The motor 18 is fixed on the fixed plate 17. The output end of the motor 18 is connected to the rotating shaft 3 13. The rotating shaft 3 13 is rotatably connected to the gear and rack transmission 2 14 in the middle. The power rod 29 is on the right rear end of the gear and rack transmission 2 14. There are stirring columns 31 around the power rod 29.

[0035] Reference Figure 2A discharge port 24 is provided at the bottom center of the fixed circular plate 16. A collection box 22 is provided on the left side of the bottom rear end of the discharge port 24. Handles 21 are installed on the front and rear sides of the top wall of the collection box 22. A stirring column 31 is rotatably connected to the outer periphery of the power rod 29. A baffle 30 is fixedly connected to the outer periphery of the stirring column 31. A discharge port 24 is opened at the bottom of the stirring column 31.

[0036] Specifically, the bottom center of the fixed circular plate 16 has a discharge port 24, and the left side of the bottom rear end of the discharge port 24 has a collection box 22. The front and rear sides of the top wall of the collection box 22 are equipped with handles 21. The outer perimeter of the power rod 29 has a stirring column 31, and the outer perimeter of the stirring column 31 is connected to a baffle 30. The bottom of the stirring column 31 has a discharge port 24, which allows the stirred material to be discharged from here into the collection box 22.

[0037] Working principle: When motor 26 is powered on and started, the material to be mixed is poured into inlet 1. Conveyor belt 28 is fixed to the output end of motor 26. Bolt 3 is installed on the left side of the top front end of inlet 1. Conveyor belt channel 4 is installed on the upper left side of inlet 1 via bolt 3. Dust cover 5 is installed on the top of conveyor belt channel 4 via bolt 3. Sprinkler cover 9 is installed on the upper left side of conveyor belt channel 4. Sprinkler outlet 11 is fixed at the bottom of sprinkler cover 9. Rotating shaft 28 is fixed on the upper front side of conveyor belt 28. Gear is fixed at the front end of rotating shaft 28. 7. A rotating shaft 6 is installed on the bottom left side of the rotating shaft 28. A gear 10 is fixed to the front end of the rotating shaft 6. When the gear 7 rotates, it will drive the gear 10 to rotate. A brush 27 is fixed to the rear side of the rotating shaft 6 to brush off the particles attached to the conveyor belt 28. Fixing posts 23 are installed around the bottom left side of the anti-spill port 11. A soundproof cover 20 is installed inside the fixing posts 23. A fixing circular plate 16 is installed on the upper middle part of the outer side of the soundproof cover 20. A fixing plate 17 is installed on the left side of the front end of the fixing circular plate 16. A motor 18 is fixed to the front end of the fixing plate 17. A rotating shaft 13 is fixed to the output end of motor 18. A gear and rack transmission 14 is fixed to the middle of the rotating shaft 13. A power rod 29 is mounted on the right side of the rear end of motor 18. A stirring column 31 is fixed to the middle of the outer side of the power rod 29. Baffles 30 are fixed around the outer side of the middle of the power rod 29. When motor 18 works, the rotation of the rotating shaft 13 drives the rotation of the gear and rack transmission 14, which in turn drives the power rod 29 to rotate. Since the stirring column 31 is fixed to the power rod 29, the rotation of the power rod 29 will drive the stirring column 31 to rotate. The bottom of 31 has a discharge port 24. A collection box 22 is installed on the left rear side of the bottom of the discharge port 24. The top left and right sides of the collection box 22 are equipped with handles 21 for easier transportation. A cover 15 is installed on the top of the soundproof cover 20. The cover 15 is divided into two halves and fixed in the middle with a hinge 12. They can be opened separately. When the mixing work starts, the half of the cover 15 on the bottom left side of the anti-spill port 11 can be opened. A bracket 25 is installed on the bottom left side of the conveyor belt channel 4 to prevent the conveyor belt channel 4 from collapsing. A ladder 19 is also installed on the front left side of the soundproof cover 20 for easy observation of the internal situation after work stops.

[0038] A cleaning mechanism 2 is installed on the outside and inside of the soundproof enclosure 20. A mixing tank 208 is installed inside the soundproof enclosure 20. A rack 3 207 is fixed to the upper part of the outer wall of the mixing tank 208. A motor 3 201 is fixed to the right side of the front end of the fixed circular plate 16. A gear and rack drive 1 202 is fixed to the output end of the motor 3 201. A rotating shaft 4 203 is fixed to the left side of the rear end of the gear and rack drive 1 202. A gear 3 204 is fixed to the end of the rotating shaft 4 203. When the motor 3 201 works, it will drive the gear 3 204. The rack and pinion drive 202 rotates, and because the rear side of the rack and pinion drive 202 is equipped with the rotating shaft 203, the rotation of the gear 204 will drive the rack 207 to rotate, thus causing the mixing tank 208 to rotate together. A water pump 205 is installed on the left side of the bottom of the outer side of the soundproof cover 20. Water pipes 206 are connected to both sides of the water pump 205. The two ends of the water pipes 206 are installed between the soundproof cover 20 and the mixing tank 208. After the mixing is completed, the water pump 205 can clean the inside of the mixing tank 208.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gradient stirring structure for a powder coating mixer, including a feed inlet (1), characterized in that: A bolt (3) is threadedly connected to the top left side of the feed inlet (1). A conveyor belt channel (4) is installed on the left side of the feed inlet (1). A motor (26) is installed on the rear side of the feed inlet (1). A conveyor belt (28) is installed at the output end of the motor (26). A rotating shaft (8) is rotatably connected to the upper left side of the front end of the conveyor belt (28). A gear (7) is rotatably connected to the upper left side of the front end of the conveyor belt (28). A rotating shaft (1) is provided on the bottom left side of the rotating shaft (8). (6) A brush (27) is fixedly connected to the rear side of the rotating shaft (6). A fixed circular plate (16) is provided on the bottom left side of the brush (27). A power rod (29) is provided inside the fixed circular plate (16). A gear (10) is rotatably connected to the front side of the rotating shaft (6). The gear (7) meshes with the gear (10). A cleaning mechanism (2) is provided on the bottom left side of the feed inlet (1). The cleaning mechanism (2) cleans the inside of the mixer after the mixing operation is completed.

2. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: The cleaning mechanism (2) includes a motor three (201), which is located at the bottom front of the anti-spill port (11). The output end of the motor three (201) is fixedly connected to a gear and rack transmission one (202). The rear left side of the gear and rack transmission one (202) is rotatably connected to a rotating shaft four (203). The end of the rotating shaft four (203) is rotatably connected to a gear three (204). The rear left side of the gear three (204) is meshed with a rack three (207). The lower middle part of the inner wall of the rack three (207) is fixedly connected to a mixing tank (208). A water pump (205) is located on the bottom left side of the motor three (201). Water pipes (206) are connected to both the left and right sides of the water pump (205).

3. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: The top of the fixed circular plate (16) is provided with a cover (15), and the front and rear sides of the top wall of the cover (15) are fixedly connected with hinges (12). The inside of the fixed circular plate (16) is equipped with a soundproof cover (20), and a ladder (19) is provided on the left side of the front end of the soundproof cover (20). The bottom of the conveyor belt channel (4) is threadedly connected with a bracket (25).

4. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: A bolt (3) is threadedly connected to the top front left of the feed inlet (1), a dust cover (5) is threadedly connected to the top left of the feed inlet (1), a spill cover (9) is installed on the upper left side of the dust cover (5), and a spill port (11) is installed at the end of the spill cover (9).

5. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: The fixed circular plate (16) has a discharge port (24) at the bottom center, and a collection box (22) is provided on the left side of the bottom rear end of the discharge port (24). The collection box (22) has handles (21) installed on the front and rear sides of its top wall.

6. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: A fixed circular plate (16) is provided on the left side of the conveyor belt channel (4), and fixed columns (23) are fixedly connected to the outer perimeter of the fixed circular plate (16).

7. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: A fixing plate (17) is fixedly connected to the left front end of the fixed circular plate (16). A motor (18) is fixedly connected to the left front end of the fixing plate (17). A rotating shaft (13) is fixedly connected to the output end of the motor (18). A gear and rack transmission (14) is rotatably connected to the middle of the rotating shaft (13). A power rod (29) is rotatably connected to the right rear end of the gear and rack transmission (14).

8. The gradient stirring structure of the powder coating mixer according to claim 1, characterized in that: The power rod (29) is rotatably connected to a stirring column (31) on all four sides of its outer side. The stirring column (31) is fixedly connected to a baffle (30) on all four sides of its outer side. The bottom of the stirring column (31) is provided with a discharge port (24).