High-strength ceramic production powder mixing device

Abstract

This utility model discloses a powder mixing device for high-strength ceramic production, relating to the field of high-strength ceramic production technology. The device includes an outer casing, a base, and a material trough. The outer casing is positioned above the base, and the material trough is rotatably located inside the outer casing. The base contains a rotating feeding device for driving the material trough to rotate and discharging the material. The device also includes a stirring mechanism and a cleaning mechanism. The stirring mechanism is located on the outer casing and extends into the material trough, stirring the material within. The cleaning mechanism is located on the outer casing and extends into the material trough, fitting against the inner wall and bottom of the trough to clean the material adhering to the inner wall and bottom. This utility model effectively prevents material sedimentation at the bottom, improves mixing uniformity, and removes material adhering to the trough walls and bottom, reducing residue and waste.

Description

Technical Field

[0001] This utility model relates to the field of high-strength ceramic production technology, specifically to a powder mixing device for high-strength ceramic production. Background Technology

[0002] High-strength ceramics, as an important engineering material, are widely used in aerospace, machinery manufacturing, and electronic information industries due to their excellent properties such as high strength, high hardness, high temperature resistance, and corrosion resistance. In the production process of high-strength ceramics, the uniformity of the powder raw material mixing directly affects the performance and quality of the final product.

[0003] Powder mixing is one of the key processes in the production of high-strength ceramics. Its purpose is to uniformly mix different types and particle sizes of powder raw materials in a specific ratio to ensure the stability of subsequent molding and sintering processes and the consistency of product performance.

[0004] In practical use, existing mixing devices often employ a single-direction or planar stirring structure, which can easily lead to localized material accumulation, bottom sedimentation, and differences in mixing efficiency between the center and the edge, resulting in mixing dead zones and insufficient mixing uniformity. Furthermore, it is difficult to remove sticky powder adhering to the wall surface, causing material residue and waste. Therefore, how to improve mixing uniformity and avoid material residue and waste is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the background art by providing a powder mixing device for high-strength ceramic production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A powder mixing device for high-strength ceramic production includes an outer casing, a base, and a material trough. The outer casing is located on top of the base, and the material trough is rotatably located inside the outer casing. The base is equipped with a rotating feeding device for driving the material trough to rotate and discharging the material. The device also includes a stirring mechanism and a cleaning mechanism. The stirring mechanism is located on the outer casing and extends into the material trough to stir the material in the trough. The cleaning mechanism is located on the outer casing and extends into the material trough, fitting against the inner wall and bottom of the material trough to clean the material adhering to the inner wall and bottom of the material trough.

[0008] The stirring structure includes a driving component, a mounting plate, and a stirring component. The driving component is located at the upper end of the outer casing. There are two mounting plates fixed below the driving component, which are staggered vertically. A stirring component is fixed at one end of the bottom of the mounting plate. Both the mounting plate and the stirring component are located in the material tank.

[0009] The cleaning mechanism includes a scraper, air knives, and an air source device. There are two air knives inside the scraper, and the air source device is located on the top of the outer casing. An air supply pipe is provided between the two air knives and the air source device. The scraper is located in the material trough.

[0010] Furthermore, the drive unit is provided with an outer cover, which is fixed to the top of the outer casing and located on one side of the air source device.

[0011] Furthermore, the driving component includes a drive motor, bevel gear one, bevel gear two, and bevel gear three. The drive motor is mounted in the outer casing by screws. Bevel gear three is fixed at the output end of the drive motor. Bevel gear two is meshed above bevel gear three, and bevel gear one is meshed below bevel gear three.

[0012] Furthermore, a fixing rod is fixedly provided at the middle position of the bottom of the second bevel gear. The fixing rod rotatably passes through the first bevel gear and is fixedly connected to the mounting plate below, and is located at one end above the mounting plate.

[0013] A sleeve rod is fixedly provided at the middle position of the bottom of the bevel gear. The sleeve rod is fixedly connected to the mounting plate above and is located at one end above the mounting plate. The sleeve rod is rotatably sleeved on the outside of the fixed rod on both the mounting plate and the mounting plate.

[0014] Both the fixing rod and the sleeve rod can rotate through the top of the outer box and extend into the material trough. The upper mounting plate (6) is longer than the lower mounting plate (6).

[0015] Furthermore, the stirring component includes a stirring column disposed at the bottom of the mounting plate away from the fixed rod and a stirring rod fixed to the outside of the stirring column, wherein there are multiple stirring rods arranged in a linear array from top to bottom.

[0016] Furthermore, the scraper is L-shaped and fits against the inner wall and bottom of the material trough. The scraper includes a vertical part and a horizontal part. One air knife is vertically embedded in the vertical part, and another air knife is horizontally embedded in the horizontal part. The air supply pipe is located at the end of the lower air knife near the inner wall of the material trough and at the upper end of the upper air knife, and penetrates through the top of the outer box.

[0017] Furthermore, the scraper has an inclined surface on the side opposite to the rotation direction of the material trough. The inclined surfaces of the vertical and horizontal parts are respectively hinged to inclined baffles. Electric telescopic rods are respectively provided between the two baffles and the inner side wall of the scraper. The electric telescopic rods are rotatably installed on the inner side wall of the scraper, and the movable end of the electric telescopic rod is rotatably connected to the baffle.

[0018] Compared with the prior art, this utility model provides a powder mixing device for high-strength ceramic production, which has the following beneficial effects:

[0019] This high-strength ceramic production powder mixing device uses staggered and counter-rotating mounting plates to drive the mixing components to form a composite mixing flow field. Combined with the inclined material tank and the staggered mixing rods, it achieves three-dimensional mixing of powder materials, effectively preventing material deposition at the bottom and improving mixing uniformity. At the same time, the cleaning mechanism combining L-shaped scrapers and air knives removes material adhering to the tank walls and bottom through the dual action of mechanical scraping and airflow purging, reducing residue and waste. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the material tank of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the material tank of this utility model from another perspective;

[0023] Figure 4 This is a schematic diagram of the structure of the driving component of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure below the scraper of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the scraper after the baffle of this utility model is unfolded.

[0026] In the diagram: 1. Outer casing; 2. Base; 3. Material trough; 4. Stirring column; 5. Stirring rod; 6. Mounting plate; 7. Bevel gear one; 8. Bevel gear two; 9. Bevel gear three; 10. Drive motor; 11. Outer cover; 12. Scraper; 13. Air knife; 14. Baffle; 15. Electric telescopic rod; 16. Air supply pipe; 17. Air source device. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0028] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0029] See attached document Figures 1-6This utility model discloses a powder mixing device for high-strength ceramic production, including an outer box 1, a base 2, and a material trough 3. The outer box 1 is disposed above the base 2, and the material trough 3 is rotatably disposed inside the outer box 1. The base 2 is provided with a rotating feeding device for driving the material trough 3 to rotate and discharging material. It also includes a stirring mechanism and a cleaning mechanism. The stirring mechanism is disposed on the outer box 1 and extends into the material trough 3 to stir the material in the material trough 3. The cleaning mechanism is disposed on the outer box 1 and extends into the material trough 3, and is attached to the inner wall and bottom of the material trough 3 to clean the material attached to the inner wall and bottom of the material trough 3.

[0030] In this embodiment, the base 2 is tilted, causing the outer box 1 to tilt its internal structure. The stirring structure is located in the lower part of the material tank 3 and works in conjunction with the rotating material tank 3 to stir the material accumulated in the lower part of the material tank 3. The cleaning structure is located in the upper part of the material tank 3 and works in conjunction with the rotating material tank 3 to clean the material adhering to the bottom and inner wall of the material tank 3.

[0031] The bottom of the material trough 3 is provided with a discharge port. The outer box 1 and the material trough 3 are respectively hinged with a box door. The material trough 3 is adapted to the rotating discharge device in the base 2. The rotating discharge device includes a rotating structure and a discharge structure. The rotating structure is a motor that drives a reducer to transmit power to the material trough 3. The discharge structure is a lifting structure that drives the unloading door stuck in the discharge port to move down to achieve the purpose of unloading.

[0032] The mixing structure includes a driving component, a mounting plate 6, and a mixing component. The driving component is located at the upper end of the outer casing 1. There are two mounting plates 6 fixed below the driving component, which are staggered vertically. The mixing component is fixed at one end of the bottom of the mounting plate 6. Both the mounting plate 6 and the mixing component are located in the material tank 3.

[0033] Specifically, the driving components include a drive motor 10, a first bevel gear 7, a second bevel gear 8, and a third bevel gear 9. The drive motor 10 is installed in the outer cover 11 by screws. The third bevel gear 9 is fixed at the output end of the drive motor 10. The second bevel gear 8 is meshed above the third bevel gear 9, and the first bevel gear 7 is meshed below the third bevel gear 9.

[0034] The drive unit is covered by an outer cover 11, which is fixed to the top of the outer casing 1 and located on one side of the air source device 17.

[0035] A fixing rod is fixedly installed at the middle position of the bottom of the second bevel gear 8. The fixing rod rotatably passes through the first bevel gear 7 and is fixedly connected to the mounting plate 6 below it, and is located at one end above the mounting plate 6.

[0036] A sleeve rod is fixedly provided at the middle position of the bottom of the bevel gear 7. The sleeve rod is fixedly connected to the mounting plate 6 above it and is located at one end above the mounting plate 6. The sleeve rod can be rotatably sleeved on the outside of the fixed rod on both the mounting plate 6 and the mounting plate 6.

[0037] Both the fixing rod and the sleeve rod can rotate through the top of the outer box 1 and extend into the material trough 3. The upper mounting plate 6 is longer than the lower mounting plate 6.

[0038] The mixing components include a mixing column 4 disposed at the bottom of the mounting plate 6 away from the fixed rod end, and mixing rods 5 fixed to the outside of the mixing column 4. The mixing rods 5 are arranged in a linear array from top to bottom.

[0039] In this embodiment, the mounting plate 6 is horizontally arranged, and the upper and lower mounting plates 6 are staggered. The length of the upper mounting plate 6 is greater than that of the lower mounting plate 6, so that the two sets of stirring components form staggered stirring areas in the material tank 3.

[0040] The stirring rods 5 on the two stirring columns 4 face the same direction, and the stirring rod 5 on the stirring column 4 on the lower mounting plate 6 is longer than the stirring rod 5 on the stirring column 4 on the upper mounting plate 6.

[0041] When the drive motor 10 is working, its output bevel gear 9 meshes with both bevel gear 7 and bevel gear 8, causing them to rotate in opposite directions. Bevel gear 8 drives the lower mounting plate 6 to rotate via a fixed rod, while bevel gear 7 drives the upper mounting plate 6 to rotate via a sleeve rod. The two sets of mounting plates 6 rotate in opposite directions, creating a composite mixing flow field within the material tank 3. The stirring rod 5 on the lower mounting plate 6 is longer than that on the upper mounting plate 6, allowing for focused mixing of the material at the bottom of the material tank 3, preventing material sedimentation.

[0042] The cleaning mechanism includes a scraper 12, an air knife 13, and an air source device 17. There are two air knives 13 located inside the scraper 12. The air source device 17 is located on the top of the outer casing 1. An air supply pipe 16 is provided between the two air knives 13 and the air source device 17. The scraper 12 is located in the material trough 3.

[0043] Specifically, the scraper 12 is L-shaped and fits against the inner wall and bottom of the material trough 3. The scraper 12 includes a vertical part and a horizontal part. One air knife 13 is vertically embedded in the vertical part, and another air knife 13 is horizontally embedded in the horizontal part. The air supply pipe 16 is located at the end of the lower air knife 13 near the inner wall of the material trough 3 and the upper end of the upper air knife 13, and passes through the top of the outer box 1.

[0044] The scraper 12 has an inclined surface on the side opposite to the rotation direction of the material trough 3. The inclined surfaces of the vertical and horizontal parts are respectively hinged to baffles 14 that are set at an inclination. Electric telescopic rods 15 are respectively provided between the two baffles 14 and the inner side wall of the scraper 12. The electric telescopic rods 15 are rotatably installed on the inner side wall of the scraper 12, and the movable end of the electric telescopic rods 15 is rotatably connected to the baffles 14.

[0045] In this embodiment, the L-shaped structure of the scraper 12 is completely fitted to the inner wall and bottom of the material trough 3. The vertical air knife 13 sprays air along the side wall of the material trough 3, and the horizontal air knife 13 sprays air along the bottom. When the material trough 3 rotates, the scraper 12 is fixed to the outer box 1 and remains stationary. Its inclined surface, which is opposite to the rotation direction of the material trough 3, can guide the material flow and scrape off the material adhering to the inner wall and bottom, ensuring the mixing effect.

[0046] When mixing is finished and feeding begins, the rotating feeding device in the base 2 causes the feeding port at the bottom of the material tank 3 to open. During the rotation of the material tank 3, most of the material is discharged from the feeding port. At this time, the electric telescopic rod 15 shortens and pushes the baffle 14 to unfold, exposing the air knife 13. Then, the air knife 13 obtains high-pressure gas from the air source device 17 through the air supply pipe 16 to form an air curtain to blow the wall and bottom of the material tank 3, enhancing the cleaning effect and avoiding material waste.

[0047] In use, the operator opens the doors of the outer casing 1 and the material tank 3, and sequentially adds the high-strength ceramic powder raw materials to be mixed into the material tank 3 according to the formula ratio, then closes the doors. The rotating feeding device in the base 2 is then activated, causing the material tank 3 to begin rotating, while the feeding port at the bottom of the material tank 3 remains closed. At this time, the material naturally accumulates towards the lower tilt in the inclined material tank 3. Then, the drive motor 10 is activated, and the bevel gear 9 at the output end of the drive motor 10 drives bevel gear 7 and bevel gear 8 to rotate in opposite directions, thereby causing the upper and lower mounting plates 6 to rotate in opposite directions, stirring the material in the material tank 3. During the stirring process, the material tank 3 continues to rotate slowly.

[0048] After mixing is complete, the drive motor 10 is stopped, while the material trough 3 continues to rotate. The discharge gate in the discharge port opens, and most of the material is discharged from the discharge port under the action of gravity and the centrifugal force of the rotating material trough 3. At the same time, the air source device 17 is activated, the electric telescopic rod 15 shortens, and pushes the baffle 14 to unfold, exposing the air knife 13. The vertical air knife 13 sprays high-pressure gas along the side wall of the material trough 3, forming an air curtain to sweep away the material adhering to the side wall; the horizontal air knife 13 sprays gas along the bottom to clean the residual material at the bottom. The inclined surface of the scraper 12 guides the material to the discharge port.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A powder mixing device for high-strength ceramic production, comprising an outer casing (1), a base (2), and a material trough (3), wherein the outer casing (1) is disposed above the base (2), the material trough (3) is rotatably disposed inside the outer casing (1), and the base (2) is provided with a rotating feeding device for driving the material trough (3) to rotate and discharging material, characterized in that, It also includes a stirring mechanism and a cleaning mechanism. The stirring mechanism is set on the outer box (1) and extends into the material tank (3) to stir the material in the material tank (3). The cleaning mechanism is set on the outer box (1) and extends into the inside of the material tank (3) and fits against the inner wall and bottom of the material tank (3) to clean the material attached to the inner wall and bottom of the material tank (3). The stirring mechanism includes a driving component, a mounting plate (6) and a stirring component. The driving component is located at the upper end of the outer casing (1). The mounting plate (6) has two components fixed below the driving component, which are staggered vertically. The stirring component is fixed at one end of the bottom of the mounting plate (6). The mounting plate (6) and the stirring component are both located in the material tank (3). The cleaning mechanism includes a scraper (12), an air knife (13), and an air source device (17). There are two air knives (13) inside the scraper (12). The air source device (17) is located on the top of the outer casing (1). An air supply pipe (16) is provided between the two air knives (13) and the air source device (17). The scraper (12) is located in the material trough (3).

2. The powder mixing device for high-strength ceramic production according to claim 1, characterized in that: The drive unit is provided with an outer cover (11), which is fixed to the top of the outer box (1) and located on the side of the air source device (17).

3. The powder mixing device for high-strength ceramic production according to claim 2, characterized in that: The driving component includes a drive motor (10), a first bevel gear (7), a second bevel gear (8), and a third bevel gear (9). The drive motor (10) is installed in the outer cover (11) by screws. The output end of the drive motor (10) is fixedly provided with the third bevel gear (9). The second bevel gear (8) is meshed above the third bevel gear (9), and the first bevel gear (7) is meshed below the third bevel gear (9).

4. The powder mixing device for high-strength ceramic production according to claim 3, characterized in that: A fixing rod is fixedly provided at the middle position of the bottom of the second bevel gear (8). The fixing rod rotatably passes through the first bevel gear (7) and is fixedly connected to the mounting plate (6) below, and is located at one end above the mounting plate (6). A sleeve rod is fixedly provided at the middle position of the bottom of the bevel gear (7). The sleeve rod is fixedly connected to the mounting plate (6) above and is located at one end above the mounting plate (6). The sleeve rod is rotatably sleeved on the outside of the fixed rod on both the mounting plate (6) and the mounting plate (6). Both the fixing rod and the sleeve rod can rotate through the top of the outer box (1) and extend into the material trough (3). The upper mounting plate (6) is longer than the lower mounting plate (6).

5. The powder mixing device for high-strength ceramic production according to claim 4, characterized in that: The stirring component includes a stirring column (4) disposed at the bottom of the mounting plate (6) away from the fixed rod and a stirring rod (5) fixed outside the stirring column (4). The stirring rod (5) has multiple rods arranged in a linear array from top to bottom.

6. The high-strength ceramic production powder mixing device according to claim 1, characterized by: The scraper (12) is L-shaped and fits against the inner wall and bottom of the material trough (3). The scraper (12) includes a vertical part and a horizontal part. One air knife (13) is vertically embedded in the vertical part, and another air knife (13) is horizontally embedded in the horizontal part. The air supply pipe (16) is located at the end of the lower air knife (13) near the inner wall of the material trough (3) and the upper end of the upper air knife (13), and passes through the top of the outer box (1).

7. The powder mixing device for high-strength ceramic production according to claim 6, characterized in that: The scraper (12) has an inclined surface on the side opposite to the rotation direction of the material trough (3). The inclined surfaces of the vertical part and the horizontal part are respectively hinged to baffles (14) that are set at an inclination. Electric telescopic rods (15) are respectively provided between the two baffles (14) and the inner side wall of the scraper (12). The electric telescopic rods (15) are rotatably installed on the inner side wall of the scraper (12). The movable end of the electric telescopic rods (15) is rotatably connected to the baffles (14).

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