Stirring device

Abstract

The utility model discloses a stirring device and relates to the technical field of stirring equipment. The stirring device comprises a concave base, supports are fixedly connected to the two ends of the top of the concave base, a stirring assembly is rotationally connected between the two supports, a first motor is fixedly connected to the end, away from the stirring assembly, of one support, and the output end of the first motor penetrates through the support and is fixedly connected with the outer side of the stirring assembly. The first motor drives the stirring assembly to rotate between the two supports, a lifting assembly is arranged on the inner side of the concave base, and the lifting assembly is located below the stirring assembly. Through the arrangement of the stirring assembly and the arrangement of scraping the surface of the stirring part during discharging, the residual material on the surface of the stirring part during discharging can be reduced, so that a certain material resource can be saved, and the surface of the stirring part is convenient to clean due to the reduction of the residual material on the surface of the stirring device; therefore, the convenience of cleaning the stirring device can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stirring equipment technical field especially, and it is a kind of stirring device. BACKGROUND

[0002] 3D printing material stirring is an important link in 3D printing process, and main purpose is to ensure that various components in 3D printing material are uniformly mixed, avoid layered, precipitation or color inconsistency etc.

[0003] Reference authorized announcement number "CN221736714U" discloses a kind of stirring device for 3D printing, wherein it is described that "through the output end of driving motor drives rotating shaft rotation, rotating shaft can drive stirring blade plate to the injection material and stir, while pouring, rotating shaft can drive rubber scraping strip to the inside of stirring barrel through the interface frame and scrape, after scraping, injection material can fall from the opening of stirring barrel, reduce the probability of residual material in rotating shaft, improve the extraction efficiency of material, reduce the waste of material".

[0004] The applicant finds that the patent has the following technical problems in the process of implementing the patent.

[0005] Because the scraping strip inside the stirring barrel set in the patent can scrape the inner wall of stirring barrel, but material is still left on the surface of scraping strip, and the surface of stirring rod set in stirring barrel is also left with material, so a lot of material is wasted, and it is not convenient to clean the inside of stirring barrel, so the convenience of cleaning stirring device is reduced, therefore, a kind of stirring device needs to be proposed to provide a new technical solution to solve the technical problems mentioned in the above patent. CONTENT OF UTILITY MODEL

[0006] Therefore, a kind of stirring device is provided to solve the technical problems in the background art, which are as follows: although the scraping strip inside the stirring barrel set in the patent can scrape the inner wall of stirring barrel, but material is still left on the surface of scraping strip, and the surface of stirring rod set in stirring barrel is also left with material, so a lot of material is wasted, and it is not convenient to clean the inside of stirring barrel, so the convenience of cleaning stirring device is reduced.

[0007] The utility model adopts the technical solutions as follows:

[0008] The stirring device specifically includes a concave base, with brackets fixedly connected to both ends of the top of the concave base. A stirring assembly is rotatably connected between the two brackets. A first motor is fixedly connected to the end of one of the brackets away from the stirring assembly. The output end of the first motor passes through the bracket and is fixedly connected to the outside of the stirring assembly. The first motor drives the stirring assembly to rotate between the two brackets. A lifting assembly is provided on the inner side of the concave base and is located below the stirring assembly.

[0009] Furthermore, the stirring assembly includes a stirring tank, a second motor, a first turntable, a first connecting rod, a second turntable, scrapers, and stirring plates. The outer sides of both ends of the stirring tank are rotatably connected to the bracket. The bottom of the stirring tank is open. The second motor is fixedly connected to the outer side of the top of the stirring tank. The output end of the second motor extends to the inner side of the stirring tank and is fixedly connected to the first turntable. The first turntable is rotatably connected to the inner side of the stirring tank. The two ends of the bottom of the first turntable are fixedly connected to the first connecting rod. The bottom of the two first connecting rods are fixedly connected to the second turntable. The second turntable is rotatably connected to the inner side of the stirring tank. Multiple scrapers are fixedly connected in a circular array on the outer periphery of the bottom of the second turntable, and the scrapers are all in contact with the inner sidewall of the stirring tank. Multiple stirring plates are fixedly connected in a circular array near the center of the bottom of the second turntable.

[0010] Furthermore, the stirring assembly also includes a third motor and a first screw. The third motor is fixedly connected to the bottom of the first turntable, and the first screw is fixedly connected to the output end of the bottom of the third motor.

[0011] Furthermore, the stirring assembly also includes a first movable disc, a second connecting rod, and a second movable disc. The first movable disc is threadedly connected to the outer side of the first screw. The inner sides of both ends of the first movable disc are slidably connected to the first connecting rod. The second connecting rod is fixedly connected to the center of the bottom of the first movable disc. The second connecting rod is threadedly connected to the first screw. The bottom of the second connecting rod passes through the inner side of the second turntable and extends to below the second turntable. The second connecting rod is slidably connected to the inner side of the second turntable. The second movable disc is fixedly connected to the bottom of the second connecting rod below the second turntable. The second movable disc is clearance-fitted with the plurality of scrapers and the stirring plates, and the outer periphery of the second movable disc is in close contact with the inner wall of the stirring tank.

[0012] Furthermore, the stirring assembly also includes a fixed groove plate, a dual-head motor, a second screw, a fixing block, a first fixing rod, and a baffle plate. Fixed groove plates are fixedly connected to the bottom of both ends of the outer side of the stirring tank. The two fixed groove plates are symmetrically arranged. A dual-head motor is fixedly connected to the center of the inner side of one of the fixed groove plates. Second screws are fixedly connected to the output ends of both sides of the dual-head motor, and the two second screws are symmetrically arranged. A fixing block is fixedly connected to the center of the inner side of the other fixed groove plate. First fixing rods are fixedly connected to both sides of the fixing block. Baffle plates are provided on both sides between the two fixed groove plates. One end of the baffle plate extends into the inner side of one of the fixed groove plates and is threadedly connected to the second screw. The other end of the baffle plate extends into the inner side of the other fixed groove plate and is slidably connected to the first fixing rod. The two baffle plates seal the bottom of the stirring tank.

[0013] Furthermore, the lifting assembly includes a fourth motor, a third screw, a second fixing rod, and a lifting plate. Movable slots are provided at both ends of the inner side of the concave base. A fourth motor is fixedly connected to the top of one end of the concave base. The fourth motor is located at the top of one of the movable slots. The output end of the fourth motor extends to the inner side of the corresponding movable slot and is fixedly connected to the third screw. The bottom of the third screw is rotatably connected to the bottom of the inner side of the movable slot. A second fixing rod is fixedly connected to the inner side of the other movable slot. A lifting plate is provided inside the concave base. One end of the lifting plate extends to the inner side of one of the movable slots and is threadedly connected to the third screw. The other end of the lifting plate extends to the inner side of the other movable slot and is slidably connected to the second fixing rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a mixing device that can scrape the surface of the mixing part during discharge, thereby reducing the material residue on the surface of the mixing part and saving material resources. At the same time, the reduction of material residue on the surface of the mixing device also makes it easier to clean the surface of the mixing part, thus improving the convenience of cleaning the mixing device.

[0016] The present invention provides a stirring device that, by adjusting the height of the collecting part, can raise the collecting part and place it close to the bottom of the discharge port of the stirring part during discharge, thereby reducing the phenomenon of material splashing during discharge. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a stirring device provided by this utility model;

[0019] Figure 2 This is an exploded structural diagram of a stirring device provided by the present invention;

[0020] Figure 3 A schematic diagram of the structure of the mixing tank of the mixing device provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the first rotating disc of a stirring device provided by this utility model;

[0022] Figure 5 A schematic diagram of the structure of the second rotating disc of a stirring device provided by this utility model;

[0023] Figure 6 A schematic diagram of the structure of the first movable disc of a stirring device provided by this utility model;

[0024] Figure 7 A schematic diagram of the structure of a baffle plate for a stirring device provided by this utility model;

[0025] Figure 8 A schematic diagram of the structure of the stirring assembly of the stirring device provided by this utility model during use;

[0026] Figure 9 This is a schematic diagram of the structure of the lifting plate of a stirring device provided by this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Concave base; 2. Support frame; 3. Stirring assembly; 4. First motor; 5. Lifting assembly; 6. Stirring tank; 7. Second motor; 8. First turntable; 9. First connecting rod; 10. Second turntable; 11. Scraper; 12. Stirring plate; 13. Third motor; 14. First screw; 15. First movable disc; 16. Second connecting rod; 17. Second movable disc; 18. Fixed groove plate; 19. Dual-head motor; 20. Second screw; 21. Fixing block; 22. First fixing rod; 23. Baffle plate; 24. Fourth motor; 25. Third screw; 26. Second fixing rod; 27. Lifting plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] As in the background art, although the scraper on the inner side of the mixing tank in this patent can scrape the inner wall of the mixing tank, material will still remain on the surface of the scraper and the surface of the mixing rod inside the mixing tank. This will result in a lot of material waste and make it inconvenient to clean the inside of the mixing tank, thus reducing the convenience of cleaning the mixing device.

[0031] To solve this technical problem, this utility model provides a stirring device that can scrape the surface of the stirring part during discharge, thereby reducing the amount of material residue on the surface of the stirring part during discharge, thus saving material resources. At the same time, the reduction of material residue on the surface of the stirring device also makes it easier to clean the surface of the stirring part, thereby improving the convenience of cleaning the stirring device.

[0032] For details, please refer to Figures 1-2 A stirring device specifically includes a concave base 1, with brackets 2 fixedly connected to both ends of the top of the concave base 1. A stirring assembly 3 is rotatably connected between the two brackets 2. A first motor 4 is fixedly connected to the end of one of the brackets 2 away from the stirring assembly 3. The output end of the first motor 4 passes through the bracket 2 and is fixedly connected to the outside of the stirring assembly 3. The first motor 4 drives the stirring assembly 3 to rotate between the two brackets 2. A lifting assembly 5 is provided on the inner side of the concave base 1 and is located below the stirring assembly 3.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] Example 1:

[0035] Please refer to Figures 1-2A stirring device includes a concave base 1, with brackets 2 fixedly connected to both ends of the top of the concave base 1. A stirring assembly 3 is rotatably connected between the two brackets 2. A first motor 4 is fixedly connected to the end of one of the brackets 2 away from the stirring assembly 3. The output end of the first motor 4 passes through the bracket 2 and is fixedly connected to the outside of the stirring assembly 3. The first motor 4 drives the stirring assembly 3 to rotate between the two brackets 2. A lifting assembly 5 is provided on the inner side of the concave base 1 and is located below the stirring assembly 3.

[0036] When in use, invert the stirring component 3 and place the material inside the stirring component 3 through the opening of the stirring component 3. Then close the stirring component 3 and turn on the stirring component 3 to stir the material.

[0037] At the same time, the first motor 4 can be turned on and the stirring component 3 can be driven to rotate between the two supports 2, so that the material inside the stirring component 3 can move synchronously with the rotation of the stirring component 3, thereby improving the uniformity of the material mixing.

[0038] Then adjust the position of the mixing component 3 and make the opening of the mixing component 3 face downwards. Place the collecting device on the top of the lifting component 5. At the same time, the height of the collecting device can be increased by setting the lifting component 5. Then turn on the mixing component 3 to feed the material and let the material mixed inside the mixing component 3 enter the collecting device.

[0039] The material collection device can be configured as a container, including but not limited to, a box or tank, that can hold materials.

[0040] Example 2:

[0041] This embodiment 2 further discloses the specific structure of the stirring component 3 based on the above embodiments. By cooperating with the structure in the above embodiments, the surface of the stirring part can be scraped during discharge, which can reduce the material residue on the surface of the stirring part during discharge, thereby saving certain material resources. At the same time, due to the reduction of material residue on the surface of the stirring device, it is also easier to clean the surface of the stirring part, thereby improving the convenience of cleaning the stirring device.

[0042] The stirring device provided in Example 1 is further optimized, specifically, as follows: Figures 3-8As shown, the stirring assembly 3 includes a stirring tank 6, a second motor 7, a first turntable 8, a first connecting rod 9, a second turntable 10, scrapers 11, and stirring plates 12. The outer sides of both ends of the stirring tank 6 are rotatably connected to the support 2. The bottom of the stirring tank 6 is open. The second motor 7 is fixedly connected to the outer side of the top of the stirring tank 6. The output end of the second motor 7 extends to the inner side of the stirring tank 6 and is fixedly connected to the first turntable 8. The first turntable 8 is rotatably connected to the inner side of the stirring tank 6. The two ends of the bottom of the first turntable 8 are fixedly connected to the first connecting rod 9. The bottom of the two first connecting rods 9 are fixedly connected to the second turntable 10. The second turntable 10 is rotatably connected to the inner side of the stirring tank 6. Multiple scrapers 11 are fixedly connected in a circular array on the outer periphery of the bottom of the second turntable 10, and the scrapers 11 are all in close contact with the inner sidewall of the stirring tank 6. Multiple stirring plates 12 are fixedly connected in a circular array near the center of the bottom of the second turntable 10.

[0043] The stirring assembly 3 also includes a third motor 13 and a first screw 14. The third motor 13 is fixedly connected to the bottom of the first turntable 8, and the first screw 14 is fixedly connected to the output end of the bottom of the third motor 13.

[0044] The stirring assembly 3 also includes a first movable disc 15, a second connecting rod 16, and a second movable disc 17. The first movable disc 15 is threadedly connected to the outer side of the first screw 14. The inner sides of both ends of the first movable disc 15 are slidably connected to the first connecting rod 9. The second connecting rod 16 is fixedly connected to the center of the bottom of the first movable disc 15. The second connecting rod 16 is threadedly connected to the first screw 14. The bottom of the second connecting rod 16 passes through the inner side of the second turntable 10 and extends to the bottom of the second turntable 10. The second connecting rod 16 is slidably connected to the inner side of the second turntable 10. The bottom of the second connecting rod 16 located below the second turntable 10 is fixedly connected to the second movable disc 17. The second movable disc 17 is clearance-fitted with the multiple scrapers 11 and the stirring plates 12, and the outer periphery of the second movable disc 17 is in close contact with the inner wall of the stirring tank 6.

[0045] The stirring assembly 3 also includes a fixed groove plate 18, a dual-head motor 19, a second screw 20, a fixing block 21, a first fixing rod 22, and a baffle plate 23. Fixed groove plates 18 are fixedly connected to the bottom of both ends of the outer side of the stirring tank 6. The two fixed groove plates 18 are symmetrically arranged. A dual-head motor 19 is fixedly connected to the center of the inner side of one of the fixed groove plates 18. The output ends of both sides of the dual-head motor 19 are fixedly connected to the second screw 20, and the two second screws 20 are symmetrically arranged. A fixing block 21 is fixedly connected to the center of the inner side of the other fixed groove plate 18. The first fixing rod 22 is fixedly connected to both sides of the fixing block 21. Baffle plates 23 are provided on both sides between the two fixed groove plates 18. One end of the baffle plate 23 extends into the inner side of one of the fixed groove plates 18 and is threadedly connected to the second screw 20. The other end of the baffle plate 23 extends into the inner side of the other fixed groove plate 18 and is slidably connected to the first fixing rod 22. The two baffle plates 23 seal the bottom of the stirring tank 6.

[0046] Specifically: By turning on the dual-head motor 19, the two second screws 20 are driven to rotate synchronously inside one of the fixed groove plates 18, thereby driving the baffle plate 23 threadedly connected to the second screw 20 to move synchronously and in opposite directions between the two fixed groove plates 18. When the two baffle plates 23 are close to each other, they can block the opening of the mixing tank 6. When the two baffle plates 23 are far apart, they can cancel the blocking effect on the opening of the mixing tank 6. At the same time, through the close fit between the baffle plate 23 and the bottom of the mixing tank 6, the material remaining on the inner surface of the baffle plate 23 on the mixing tank 6 can be scraped off when the baffle plate 23 moves, thereby reducing the waste caused by material residue. At the same time, the setting of the first fixed rod 22 can improve the stability of the movement of the baffle plate 23.

[0047] By controlling the position of the baffle plate 23, the material can be placed inside the mixing tank 6. At this time, the material is located between the second turntable 10 and the baffle plate 23, which makes it easier to stir the material by the scraper 11 and the stirring plate 12.

[0048] Then, the second motor 7 is turned on and drives the first turntable 8 to rotate. Through the connection of the two first connecting rods 9, the second turntable 10 at the bottom is driven to rotate synchronously. This causes the scraper 11 and the stirring plate 12, which are fixedly connected to the second turntable 10, to rotate synchronously inside the mixing tank 6 and fully mix the materials. At the same time, the scraper 11 can scrape away the material remaining on the inner wall of the mixing tank 6, thereby improving the uniformity of the mixing.

[0049] At the same time, by turning on the first motor 4, the mixing tank 6 can be driven to rotate between the two supports 2, thereby changing the state of the mixing tank 6 and causing the material inside the mixing tank 6 to move due to gravity, thereby further improving the uniformity of mixing the material inside the mixing tank 6.

[0050] After the mixture is stirred to a certain extent, the first motor 4 controls the mixing tank 6 to be in a vertical position between the two supports 2, and the opening of the mixing tank 6 is made to face downwards. Then, the two baffles 23 can be controlled to move away from each other, so that the feeding operation can be carried out.

[0051] At the same time, the third motor 13 can be turned on and the first screw 14 can be driven to rotate, thereby driving the first movable disk 15 and the second connecting rod 16, which are threadedly connected to the first screw 14, to move downward on the outside of the first screw 14, thereby driving the second movable disk 17, which is fixedly connected to the second connecting rod 16, to move downward synchronously.

[0052] When the second movable disc 17 moves downward, it can scrape the inner wall of the mixing tank 6 and the outer wall of the scraper 11 and the stirring plate 12, thereby reducing the material residue on the inner wall of the mixing tank 6 and the outer wall of the scraper 11 and the stirring plate 12, and thus reducing the material residue on the surface of the mixing part during discharge, thereby saving certain material resources.

[0053] All the motors mentioned above are motors with power-off self-locking capability, such as servo motors.

[0054] Example 3:

[0055] This embodiment 3 further discloses the specific structure of the lifting component 5 based on the above embodiments. By cooperating with the structure in the above embodiments, the height of the collecting part can be adjusted, so that the collecting part can be lifted and placed close to the bottom of the discharge port of the mixing part during discharge, thereby reducing the phenomenon of material splashing during discharge.

[0056] The stirring apparatus provided in Example 1 and Example 2 has been further optimized, specifically, as follows: Figure 9As shown, the lifting assembly 5 includes a fourth motor 24, a third screw 25, a second fixing rod 26, and a lifting plate 27. Movable slots are provided at both ends of the inner side of the concave base 1. The top of one end of the concave base 1 is fixedly connected to the fourth motor 24, which is located at the top of one of the movable slots. The output end of the fourth motor 24 extends to the inner side of the corresponding movable slot and is fixedly connected to the third screw 25. The bottom of the third screw 25 is rotatably connected to the bottom of the inner side of the movable slot. The second fixing rod 26 is fixedly connected to the inner side of the other movable slot. A lifting plate 27 is provided inside the concave base 1. One end of the lifting plate 27 extends to the inner side of one of the movable slots and is threadedly connected to the third screw 25. The other end of the lifting plate 27 extends to the inner side of the other movable slot and is slidably connected to the second fixing rod 26.

[0057] Specifically: The material collection device is placed on top of the lifting plate 27. Then, by turning on the fourth motor 24 and driving the third screw 25 to rotate, the lifting plate 27, which is threadedly connected to the third screw 25, can move up and down between the concave bases 1. This allows the material collection device at the bottom of the lifting plate 27 to move closer to the bottom of the mixing tank 6. By reducing the distance between the material collection device and the bottom of the mixing tank 6, the phenomenon of material splashing during discharge can be reduced. At the same time, the second fixing rod 26 can improve the stability of the lifting plate 27 moving up and down between the concave bases 1.

[0058] All the motors mentioned above are motors with power-off self-locking capability, such as servo motors.

Claims

1. A stirring device, comprising a concave base (1), characterized in that, The concave base (1) has two fixed supports (2) at its top ends. A stirring assembly (3) is rotatably connected between the two supports (2). A first motor (4) is fixedly connected to one end of one of the supports (2) away from the stirring assembly (3). The output end of the first motor (4) passes through the support (2) and is fixedly connected to the outside of the stirring assembly (3). The first motor (4) drives the stirring assembly (3) to rotate between the two supports (2). A lifting assembly (5) is provided on the inner side of the concave base (1) and is located below the stirring assembly (3).

2. The stirring device according to claim 1, characterized in that, The stirring assembly (3) includes a stirring tank (6), a second motor (7), a first turntable (8), a first connecting rod (9), a second turntable (10), a scraper (11), and a stirring plate (12). The outer sides of both ends of the stirring tank (6) are rotatably connected to the bracket (2). The bottom of the stirring tank (6) is open. The second motor (7) is fixedly connected to the outer side of the top of the stirring tank (6). The output end of the second motor (7) extends to the inside of the stirring tank (6) and is fixedly connected to the first turntable (8). The first turntable (8) is connected to the inner side of the stirring tank (6). The first turntable (8) is rotatably connected to the bottom of the first turntable (8) and the two ends of the bottom of the first turntable (8) are fixedly connected to the first connecting rod (9). The bottom of the two first connecting rods (9) is fixedly connected to the second turntable (10). The second turntable (10) is rotatably connected to the inner side of the mixing tank (6). The bottom outer periphery of the second turntable (10) is fixedly connected to multiple scrapers (11) in a circular array. The scrapers (11) are all fitted to the inner side wall of the mixing tank (6). The bottom of the second turntable (10) is fixedly connected to multiple stirring plates (12) in a circular array near the center.

3. The stirring device according to claim 2, characterized in that, The stirring assembly (3) also includes a third motor (13) and a first screw (14). The third motor (13) is fixedly connected to the bottom of the first turntable (8), and the first screw (14) is fixedly connected to the output end of the bottom of the third motor (13).

4. The stirring device according to claim 3, characterized in that, The stirring assembly (3) further includes a first movable disc (15), a second connecting rod (16), and a second movable disc (17). The first movable disc (15) is threadedly connected to the outer side of the first screw (14). The inner sides of both ends of the first movable disc (15) are slidably connected to the first connecting rod (9). The second connecting rod (16) is fixedly connected to the center of the bottom of the first movable disc (15). The second connecting rod (16) is threadedly connected to the first screw (14). The bottom of the second connecting rod (16) The part penetrates the inner side of the second turntable (10) and extends to the bottom of the second turntable (10). The second connecting rod (16) is slidably connected to the inner side of the second turntable (10). The second connecting rod (16) is fixedly connected to the bottom of the second turntable (10) with a second movable disc (17). The second movable disc (17) is clearance-fitted with the multiple scrapers (11) and the stirring plate (12). The outer periphery of the second movable disc (17) is in close contact with the inner wall of the mixing tank (6).

5. A stirring device according to claim 4, characterized in that, The stirring assembly (3) further includes a fixed groove plate (18), a dual-head motor (19), a second screw (20), a fixing block (21), a first fixing rod (22), and a baffle plate (23). Fixed groove plates (18) are fixedly connected to the bottom of both ends of the outer side of the stirring tank (6). The two fixed groove plates (18) are symmetrically arranged. A dual-head motor (19) is fixedly connected to the center of the inner side of one of the fixed groove plates (18). A second screw (20) is fixedly connected to the output ends of both sides of the dual-head motor (19), and the two second screws (20) are symmetrically arranged. The other fixed groove plate (18)... A fixing block (21) is fixedly connected to the center of the inner side of the mixing tank (6). A first fixing rod (22) is fixedly connected to both sides of the fixing block (21). A baffle plate (23) is provided on both sides between the two fixing groove plates (18). One end of the baffle plate (23) extends to the inner side of one of the fixing groove plates (18) and is threadedly connected to the second screw (20). The other end of the baffle plate (23) extends to the inner side of the other fixing groove plate (18) and is slidably connected to the first fixing rod (22). The two baffle plates (23) seal the bottom of the mixing tank (6).

6. The stirring device according to claim 1, characterized in that, The lifting assembly (5) includes a fourth motor (24), a third screw (25), a second fixing rod (26), and a lifting plate (27). Both ends of the inner side of the concave base (1) are provided with movable slots. The top of one end of the concave base (1) is fixedly connected to the fourth motor (24). The fourth motor (24) is located at the top of one of the movable slots. The output end of the bottom of the fourth motor (24) extends to the inner side of the corresponding movable slot and is fixedly connected to the third screw (25). The bottom of the third screw (25) is rotatably connected to the bottom of the inner side of the movable slot. The second fixing rod (26) is fixedly connected to the inner side of the other movable slot. The inner side of the concave base (1) is provided with a lifting plate (27). One end of the lifting plate (27) extends to the inner side of one of the movable slots and is threadedly connected to the third screw (25). The other end of the lifting plate (27) extends to the inner side of the other movable slot and is slidably connected to the second fixing rod (26).

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