Grinding device for ceramic powder production
By using a two-stage grinding and sieving device, the problem of uneven particle size in ceramic powder production was solved, thereby improving the uniformity of powder particle size and product quality, and ensuring the performance and quality stability of ceramic products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-03
AI Technical Summary
The grinding equipment used in existing ceramic powder production produces powder with uneven particle size, which increases the difficulty of molding, reduces product quality, and results in defects such as pores and cracks.
A two-stage grinding device is adopted. First, the particles are initially crushed and ground by coarse grinding parts, and then further refined by fine grinding parts. Combined with a screening device, particle size consistency is ensured.
It achieves uniformity of powder particle size and stability of product quality, avoids the problem of large particle size difference in traditional grinding devices, and improves the performance and quality of ceramic products.
Smart Images
Figure CN223959775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceramic powder production technology, specifically to a grinding device for ceramic powder production. Background Technology
[0002] Ceramic powder production refers to the process of processing natural minerals or chemical raw materials into ceramic powders with specific properties and particle size distribution through a series of processes and technologies. Grinding equipment is a device used to reduce the particle size of solid materials through grinding, crushing and other methods to achieve the required fineness and uniformity. It has a wide range of applications in ceramic powder production and many other fields.
[0003] However, existing technologies still have the following problems:
[0004] Existing grinding devices for ceramic powder production often produce powders with uneven particle size. This can lead to uneven body density and increased molding difficulty during the forming process; uneven temperature during sintering, resulting in defects such as pores and cracks; and ultimately, a decline in the mechanical properties of the product, such as reduced strength and toughness, unstable electrical properties, large fluctuations in dielectric constant and resistivity, and poor optical properties, affecting light transmittance and transparency, thus impacting the production quality of ceramic products.
[0005] To address the aforementioned problems, the inventors proposed a grinding device for ceramic powder production. Utility Model Content
[0006] In order to solve the problem of uneven particle size of powder after grinding by grinding devices used in ceramic powder production, the purpose of this utility model is to provide a grinding device for ceramic powder production.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a grinding device for ceramic powder production, comprising a base plate, a support plate and an upper plate fixedly provided on the upper surface of the base plate, with the upper plate located above the support plate; a feed box symmetrically fixedly provided on the upper surface of the upper plate; a feed hopper fixedly provided on the upper surface of the feed box; the feed hopper and the feed box are connected; a rotating column is rotatably provided inside the feed box; a coarse grinding part is fixedly provided on the outer surface of the rotating column; a first DC motor is fixedly provided on the upper surface of the support plate; a drive shaft is fixedly provided at the output end of the first DC motor; the outer end of the rotating column passes through the feed box and is fixedly connected to a driven shaft; the driven shaft is connected to the drive shaft; and a discharge pipe is symmetrically fixedly provided on the lower surface of the upper plate, with the discharge pipe connected to the corresponding feed box.
[0008] Preferably, two limiting frames are fixedly provided above the base plate, and a movable plate is slidably provided within the two limiting frames. A screen frame is detachably provided within the movable plate. A support block is fixedly provided on the upper surface of the base plate, and a half-face gear is rotatably provided on the upper surface of the support block. A servo motor is fixedly provided on the upper surface of the support block. The output end of the servo motor is fixedly connected to the half-face gear, and a circulation component is meshed with the outer surface of the half-face gear. One end of the circulation component is fixedly connected to the movable plate, and the other end of the circulation component is connected through a limiting block. The limiting block is fixedly connected to the support block.
[0009] Preferably, a grinding box is fixedly provided on the upper surface of the base plate, and a rectangular hopper is fixedly provided on the upper surface of the grinding box. The rectangular hopper is located below the screen frame. Rotary shafts are symmetrically arranged through the grinding box. A second DC motor and a reducer are fixedly provided on the upper surface of the base plate. The output end of the second DC motor is fixedly connected to the reducer, and the output end of the reducer is fixedly connected to one of the rotating shafts. A linkage gear is fixedly sleeved on the outer surface of the rotating shaft, and the two linkage gears mesh with each other. A fine grinding part is fixedly sleeved on the outer surface of the rotating shaft. A discharge trough is opened on the upper surface of the base plate.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model uses a two-stage grinding process: coarse grinding and fine grinding. First, the coarse powder is initially crushed and ground by the coarse grinding element, and then it is further refined by the fine grinding element. This graded grinding method can more effectively control the particle size of the powder, making the particle size of the powder more uniform after grinding, and avoiding the problem of large particle size difference caused by a single grinding in traditional grinding devices. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is an exploded cross-sectional view of the relevant structure of the feed box of this utility model.
[0015] Figure 3 This is an exploded view of the relevant structure of the movable plate part of this utility model.
[0016] Figure 4 This utility model Figure 3Enlarged schematic diagram of the structure at point A in the middle.
[0017] Figure 5 This is an exploded view of the grinding box and its internal structure according to this utility model.
[0018] In the diagram: 1. Base plate; 11. Grinding box; 12. Rectangular hopper; 13. Second DC motor; 14. Reducer; 15. Rotating shaft; 16. Fine grinding part; 17. Linkage gear; 18. Grinding plate; 19. Discharge chute; 2. Top plate; 21. Feed hopper; 22. Feed box; 23. Rotating column; 24. Coarse grinding part; 25. First DC motor; 26. Drive shaft; 27. Driven shaft; 28. Arc-shaped screen plate; 29. Discharge pipe; 210. Limiting ring; 3. Support plate; 31. Transfer hopper; 4. Screen frame; 41. Limiting frame; 42. Moving plate; 43. Support block; 44. Servo motor; 45. Half-face gear; 46. Half-face gear; 47. Limiting block. Detailed Implementation
[0019] 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.
[0020] Example: Figure 1-5As shown, this utility model provides a grinding device for ceramic powder production, including a base plate 1. The base plate 1 is made of high-strength alloy steel, which has good load-bearing capacity and stability. Its surface is treated with anti-rust treatment to extend the service life of the equipment. A support plate 3 and an upper plate 2 are fixedly provided on the upper surface of the base plate 1, and the upper plate 2 is located above the support plate 3. A feed box 22 is symmetrically fixed on the upper surface of the upper plate 2. A feed hopper 21 is fixedly fixed on the upper surface of the feed box 22. The feed hopper 21 and the feed box 22 are connected. A rotating column 23 is rotatably provided inside the feed box 22. Limiting rings 210 are symmetrically fixed on both sides of the feed box 22, and the rotating column 23 passes through the corresponding limiting rings 210. A coarse grinding part 24 is fixedly provided on the outer surface of the rotating column 23. A first DC motor 25 is fixedly provided on the upper surface of the support plate 3. The output end of the motor 25 is fixedly equipped with a drive shaft 26. The outer end of the rotating column 23 passes through the feed box 22 and is fixedly connected with a driven shaft 27. The driven shaft 27 and the drive shaft 26 are connected by transmission. An arc-shaped sieve plate 28 is fixedly installed inside the feed box 22. The lower surface of the upper plate 2 is symmetrically equipped with a discharge pipe 29, and the discharge pipe 29 is connected to the corresponding feed box 22. The ceramic coarse powder enters the feed box 22 from the feed hopper 21. The first DC motor 25 starts, and the drive shaft 26 at its output end rotates. Through the transmission connection, it drives the driven shaft 27 and the rotating column 23 to rotate. The coarse grinding piece 24 on the rotating column 23 performs coarse grinding on the coarse powder in the box. During the grinding process, the coarse powder is initially refined under the action of the coarse grinding piece 24. Then it is screened through the arc-shaped sieve plate 28. The qualified coarsely ground powder falls through the discharge pipe 29.
[0021] Two limiting frames 41 are fixedly installed above the base plate 1, and a movable plate 42 is slidably installed inside the two limiting frames 41. A screen frame 4 is detachably installed inside the movable plate 42. The screen frame 4 is locked onto the movable plate 42, and the movable plate 42 and the screen frame 4 are connected by bolts. A conveyor hopper 31 is fixedly installed on the inner side of the support plate 3, and the conveyor hopper 31 is located above the screen frame 4. A support block 43 is fixedly installed on the upper surface of the base plate 1, and a half-face gear 45 is rotatably installed on the upper surface of the support block 43. A servo motor 44 is fixedly installed on the upper surface of the support block 43. The output end of the servo motor 44 is fixedly connected to the half-face gear 45, and a circulation component 46 is meshed with the outer surface of the half-face gear 45. One end of the circulation component 46 is fixedly connected to the movable plate 42, and the other end of the circulation component 46 is connected through a limiting frame 42. Position block 47 and limit block 47 are fixedly connected to support block 43. The coarsely ground powder falling from the discharge pipe 29 enters the feed hopper 31 and then falls onto the screen frame 4. The servo motor 44 starts and drives the half-face gear 45 to rotate. The half-face gear 45 meshes with the circulation component 46. Since only part of the half-face gear 45 has teeth, the circulation component 46 will reciprocate, thereby driving the moving plate 42 and the screen frame 4 to slide back and forth in the limit frame 41 to screen the powder after coarse grinding. Powder with suitable particle size continues to fall through the screen frame 4. The screen frame 4 is set between coarse grinding and fine grinding to screen out powder that does not meet the particle size requirements in time, ensuring that the particle size of the powder entering the fine grinding stage is relatively consistent, and further improving the particle size uniformity and quality stability of the final product.
[0022] A grinding box 11 is fixedly mounted on the upper surface of the base plate 1, and a rectangular hopper 12 is fixedly mounted on the upper surface of the grinding box 11. The rectangular hopper 12 is located below the screen frame 4. Rotating shafts 15 are symmetrically arranged through the grinding box 11. A second DC motor 13 and a reducer 14 are fixedly mounted on the upper surface of the base plate 1. The output end of the second DC motor 13 is fixedly connected to the reducer 14, and the output end of the reducer 14 is fixedly connected to one of the rotating shafts 15. A linkage gear 17 is fixedly sleeved on the outer surface of the rotating shaft 15, and the two linkage gears 17 mesh with each other. The grinding media 16 is finely ground. Grinding plates 18 are symmetrically fixed inside the grinding box 11 to be used with the fine grinding media 16. A discharge chute 19 is opened on the upper surface of the bottom plate 1. The sieved powder enters the grinding box 11 through the rectangular hopper 12. The second DC motor 13 is started, and the power is transmitted to one of the rotating shafts 15 through the reducer 14. The rotating shaft 15 drives the other rotating shaft 15 to rotate in the opposite direction through the linkage gear 17. The fine grinding media 16 on the rotating shaft 15 cooperates with the grinding plates 18 to finely grind the powder entering the grinding box 11. Finally, the finely ground powder is discharged from the discharge chute 19.
[0023] Working principle: Ceramic coarse powder enters the feed box 22 from the feed hopper 21. The first DC motor 25 starts, and the drive shaft 26 at its output end rotates. Through the transmission connection, it drives the driven shaft 27 and the rotating column 23 to rotate. The coarse grinding parts 24 on the rotating column 23 coarsely grind the coarse powder in the box. During the grinding process, the coarse powder is initially refined under the action of the coarse grinding parts 24. Then it is screened through the arc-shaped sieve plate 28. The qualified coarsely ground powder falls through the discharge pipe 29.
[0024] The coarsely ground powder falling from the discharge pipe 29 enters the feed hopper 31 and then falls onto the screen frame 4. The servo motor 44 starts and drives the half-face gear 45 to rotate. The half-face gear 45 meshes with the circulation component 46. Since only part of the half-face gear 45 has teeth, the circulation component 46 will reciprocate, thereby driving the moving plate 42 and the screen frame 4 to slide back and forth within the limit frame 41 to screen the coarsely ground powder. Powder with suitable particle size continues to fall through the screen frame 4. The screen frame 4 is set between coarse grinding and fine grinding to screen out powder that does not meet the particle size requirements in a timely manner, ensuring that the particle size of the powder entering the fine grinding stage is relatively consistent, and further improving the particle size uniformity and quality stability of the final product.
[0025] The sieved powder enters the grinding chamber 11 through the rectangular hopper 12. The second DC motor 13 is started, and the power is transmitted to one of the rotating shafts 15 through the reducer 14. The rotating shaft 15 drives the other rotating shaft 15 to rotate in the opposite direction through the linkage gear 17. The fine grinding parts 16 on the rotating shaft 15 cooperate with the grinding plate 18 to finely grind the powder entering the grinding chamber 11. Finally, the finely ground powder is discharged from the discharge trough 19.
[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A grinding device for producing ceramic powder, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly provided with a support plate (3) and an upper plate (2), and the upper plate (2) is located above the support plate (3), the upper surface of the upper plate (2) is fixedly provided with a feeding box (22) in a symmetrical manner, the upper surface of the feeding box (22) is fixedly provided with a feeding hopper (21), the feeding hopper (21) and the feeding box (22) are communicated with each other, a rotating column (23) is rotatably arranged in the feeding box (22), and the outer surface of the rotating column (23) is fixedly provided with a coarse grinding part (24), the upper surface of the support plate (3) is fixedly provided with a first DC motor (25), and the output end of the first DC motor (25) is fixedly provided with a driving shaft (26), the outer end of the rotating column (23) penetrates through the feeding box (22) and is fixedly connected with a driven shaft (27), and the driven shaft (27) is in transmission connection with the driving shaft (26), and the lower surface of the upper plate (2) is fixedly provided with a discharge pipe (29) in a symmetrical manner, and the discharge pipe (29) is communicated with the corresponding feeding box (22).
2. The grinding device for producing ceramic powder according to claim 1, wherein: The upper surface of the bottom plate (1) is fixedly provided with two limiting frames (41), and the two limiting frames (41) are slidably provided with a moving plate (42), and the moving plate (42) is detachably provided with a screen frame (4), the upper surface of the bottom plate (1) is fixedly provided with a supporting block (43), and the upper surface of the supporting block (43) is rotatably provided with a half-face gear (45), the upper surface of the supporting block (43) is fixedly provided with a servo motor (44), the output end of the servo motor (44) is fixedly connected with the half-face gear (45), and the outer surface of the half-face gear (45) is meshingly connected with a circulating part (46), one end of the circulating part (46) is fixedly connected with the moving plate (42), and the other end of the circulating part (46) penetrates through the limiting block (47) and is connected with the limiting block (47), and the limiting block (47) is fixedly connected with the supporting block (43).
3. The grinding device for producing ceramic powder according to claim 2, wherein: The upper surface of the bottom plate (1) is fixedly provided with a grinding box (11), and the upper surface of the grinding box (11) is fixedly provided with a rectangular hopper (12), the rectangular hopper (12) is located below the screen frame (4), the grinding box (11) is symmetrically provided with a rotating shaft (15), the upper surface of the bottom plate (1) is fixedly provided with a second DC motor (13) and a speed reducer (14), the output end of the second DC motor (13) is fixedly connected with the speed reducer (14), and the output end of the speed reducer (14) is fixedly connected with one of the rotating shafts (15), the outer surface of the rotating shaft (15) is fixedly sleeved with a linkage gear (17), and the two linkage gears (17) are meshed with each other, the outer surface of the rotating shaft (15) is fixedly sleeved with a fine grinding part (16), and the upper surface of the bottom plate (1) is provided with a discharge groove (19).
4. The grinding device for producing ceramic powder according to claim 3, wherein: The grinding box (11) is fixedly provided with a grinding plate (18) matched with the fine grinding part (16) in a symmetrical manner.
5. The grinding device for producing ceramic powder according to claim 1, wherein: The feeding box (22) is fixedly provided with an arc-shaped screen plate (28).
6. The grinding device for producing ceramic powder according to claim 1, wherein: The two sides of the feeding box (22) are fixedly provided with limiting rings (210), and the rotating column (23) penetrates through the corresponding limiting ring (210).
7. The grinding device for producing ceramic powder according to claim 2, wherein: The inner side of the branch plate (3) is fixedly provided with a conveying hopper (31), and the conveying hopper (31) is located above the screen frame (4).
8. The grinding device for producing ceramic powder according to claim 2, wherein: The screen frame (4) is clamped on the moving plate (42), and the moving plate (42) and the screen frame (4) are connected through bolt cooperation.