Mixing machine for preventing leakage of metal powder

Abstract

The utility model relates to the technical field of metal powder mixing, and discloses a metal powder leakproof mixing machine which comprises a box body, supporting legs are fixedly connected to the bottom end of the box body, a feeding box is fixedly connected to the top end of the box body, a sealing assembly is rotatably connected to the top end of the feeding box, a feeding hole is formed in the top end of the feeding box, and the sealing assembly is rotatably connected to the top end of the feeding box. A plurality of telescopic rods are fixedly connected to the top end of the interior of the box body, the telescopic rods are sleeved with strong springs, a sieve plate is fixedly connected to the bottom ends of the telescopic rods, two gathering plates are fixedly connected to the interior of the top end of the sieve plate, and an oscillator is fixedly connected to the bottom end of the sieve plate. According to the metal powder screening device, unqualified powder can fall into the temporary storage holes and then returns to the screening plate under the action of the guide pipe, the metal powder can be repeatedly screened, it can be guaranteed that components and structures of the metal powder are kept consistent on the macroscopic level and the microscopic level, then the rejection rate is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder mixing, in particular to a leakage-proof mixer for metal powder. Background Art

[0002] Metal powder is a fine particle made of metal, which is commonly used in various industrial applications such as 3D printing, powder metallurgy, thermal spraying, etc. Due to its high reactivity and potential safety risks, metal powder needs to be processed using leak-proof mixers. These equipment can not only provide a closed and controlled environment to reduce the risk of fire and explosion, but also ensure the high quality and consistency of the product.

[0003] In the prior art, some 3D printing uses metal powder, so the composition and structure of the metal powder must be highly uniform. Different types of metal powders can be effectively dispersed through mixing, so that their components are consistent at the macro and micro levels. However, when powders of different particle sizes and types are put into a mixer, this will cause the components of the final product to be uneven, which will increase the scrap rate, which not only wastes raw materials but also increases production costs. Therefore, in view of the above shortcomings, a leakage-proof mixer for metal powder is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a leakage-proof mixer for metal powder, aiming to improve the problem in the prior art that powders of different particle sizes will be unevenly mixed due to their different sizes when mixed, thereby increasing the scrap rate, which not only wastes resources but also increases production costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal powder leakage-proof mixer, comprising a box body, the bottom end of the box body is fixedly connected to a supporting leg, the top end of the box body is fixedly connected to a feeding box, the top end of the feeding box is rotatably connected to a sealing assembly, the top end of the feeding box is provided with a feeding hole, the inner top end of the box body is fixedly connected to a plurality of telescopic rods, the outer side of the telescopic rods is sleeved with a strong spring, the bottom ends of the plurality of telescopic rods are fixedly connected to a sieve plate, the top end of the sieve plate is fixedly connected to two gathering plates, the bottom end of the sieve plate is fixedly connected to an oscillator, a temporary storage hole is provided inside the box body, the right side of the temporary storage hole is fixedly connected to a plurality of guide pipes, the top ends of the plurality of guide pipes are fixedly connected to an air pump, and the top end of the air pump is fixedly connected to a plurality of patrol pipes.

[0006] Furthermore, the sealing assembly includes a sealing cover, the right end of which is rotatably connected to the top of the feed box, the bottom end of the sealing cover is fixedly connected with a sealing ring, and the outside of the sealing ring contacts the inside of the feed hole.

[0007] Furthermore, a mixing chamber is provided inside the bottom end of the box body. A driving assembly is fixedly connected to the bottom end of the box body. A plurality of mixing blades are fixedly connected to the outside of the driving assembly. A telescopic spring is arranged inside the mixing blades. The inner walls of the far sides of the plurality of mixing blades are all slidably connected with sliding rods. Limiting discs are fixedly connected to the near sides of the plurality of sliding rods. Two scraping plates are fixedly connected to the far sides of the plurality of sliding rods. A feeding hole is provided on the left side of the box body.

[0008] Furthermore, one end of the strong spring is fixedly connected to the inner top end of the box body, and the other end of the strong spring is fixedly connected to the top end of the sieve plate.

[0009] Furthermore, the outside of the sieve plate is slidably connected to the inner top end of the box body, and the outside of the guiding pipe is fixedly connected to the inner right side of the box body.

[0010] Furthermore, the left end of the air pump is fixedly connected to the right side of the box body, and the left end of the circulating pipe is fixedly connected to the right end of the feeding box.

[0011] Furthermore, the driving includes a motor. The top end of the motor is fixedly connected to the bottom end of the box body. The driving end of the motor is fixedly connected with a mixing rod. The outside of the mixing rod is fixedly connected to the near sides of the plurality of mixing blades. The bottom end of the outside of the mixing rod is rotatably connected to the inner bottom end of the box body.

[0012] Furthermore, the outside of the limiting disc is slidably connected to the inside of the mixing blade, and one side of the scraping plate is in contact with the inner wall of the mixing chamber.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the powder on the sieve plate is screened by starting the oscillator. Then, the unqualified powder will fall into the temporary storage hole and then return to the sieve plate under the action of the guiding pipe. The metal powder can be screened repeatedly, which can ensure that the composition and structure of the metal powder are consistent at the macroscopic and microscopic levels, thereby reducing the rejection rate and lowering the production cost.

[0015] 2. In the utility model, the driving motor not only drives the mixing blades to mix the powder, but also drives the scraping plate to clean the inner wall in real time, which can effectively remove the residues remaining on the inner wall after the previous mixing, ensuring that each mixing is carried out in a clean environment and reducing the work burden of the operator. Description of the Drawings

[0016] Figure 1 is a three-dimensional view of the metal powder leakage-proof mixer proposed by the utility model;

[0017] Figure 2 Schematic diagram of the box structure for the metal powder leakage-proof mixer proposed by the present utility model;

[0018] Figure 3 Schematic diagram of the sieve plate structure for the metal powder leakage-proof mixer proposed by the present utility model;

[0019] Figure 4 Schematic diagram of the sealing cover structure for the metal powder leakage-proof mixer proposed by the present utility model;

[0020] Figure 5 Schematic diagram of the mixing blade structure for the metal powder leakage-proof mixer proposed by the present utility model.

[0021] Legend:

[0022] 1. Box; 2. Support leg; 3. Feeding box; 4. Sealing cover; 5. Sealing ring; 6. Feeding hole; 7. Telescopic rod; 8. Strong spring; 9. Sieve plate; 10. Gathering plate; 11. Oscillator; 12. Temporary storage hole; 13. Guide pipe; 14. Air pump; 15. Circuit pipe; 16. Mixing chamber; 17. Motor; 18. Mixing rod; 19. Mixing blade; 20. Telescopic spring; 21. Sliding rod; 22. Limiting disc; 23. Scraper; 24. Discharge hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Refer to Figure 2 - Figure 4, An embodiment provided by the present utility model: A metal powder anti-leakage mixer, including a box body 1 designed to be strong enough to prevent deformation or damage under high-intensity working conditions. The bottom end of the box body 1 is fixedly connected with support legs 2. These support legs 2 not only ensure the stable placement of the mixer but also help reduce the vibration generated during work from being transmitted to the ground, thereby reducing noise and protecting the working environment. The top end of the box body 1 is fixedly connected with a feed box 3, which is the main channel for metal powder to enter the mixer. The top end of the feed box 3 is rotatably connected with a sealing component. This component is the key part to prevent powder leakage. The sealing component includes a sealing cover 4 for easy opening and closing. The right end of the sealing cover 4 is rotatably connected inside the top end of the feed box 3. The bottom end of the sealing cover 4 is fixedly connected with a sealing ring 5 to ensure that powder does not leak into the external environment during the screening and mixing process. The outside of the sealing ring 5 is in contact with the inside of the feed hole 6. The top end of the feed box 3 is provided with a feed hole 6. Through this hole, metal powder is loaded into the mixer. The top end inside the box body 1 is fixedly connected with a plurality of telescopic rods 7. A strong spring 8 is sleeved outside the telescopic rods 7. This structural design provides elastic support for the sieve plate 9. The bottom ends of the plurality of telescopic rods 7 are fixedly connected with a sieve plate 9. The outside of the sieve plate 9 is slidably connected inside the top end of the box body 1. One end of the strong spring 8 is fixedly connected to the top end inside the box body 1, and the other end of the strong spring 8 is fixedly connected to the top end of the sieve plate 9. Inside the top end of the sieve plate 9, two converging plates 10 are fixedly connected. The function of these plates is to effectively gather metal powder on the sieve plate 9 during the screening process, improving the uniformity and efficiency of screening. The bottom end of the sieve plate 9 is fixedly connected with an oscillator 11, which is the main component to provide power to make the sieve plate 9 vibrate. The sieve plate 9 can perform high-frequency vibration to improve the screening efficiency. A temporary storage hole 12 is provided inside the box body 1 for temporarily storing the metal powder that fails to pass through the sieve plate 9 during the screening process. The sieve plate 9 is responsible for screening the loaded metal powder, and the unqualified powder is temporarily stored in the temporary storage hole 12 and waits to be reprocessed. A plurality of guide pipes 13 are fixedly connected to the inside of the right side of the temporary storage hole 12. The outside of the guide pipes 13 is fixedly connected to the inside of the right side of the box body 1. The top ends of the plurality of guide pipes 13 are fixedly connected with an air pump 14. The left end of the air pump 14 is fixedly connected to the right side of the box body 1. The top end of the air pump 14 is fixedly connected with a plurality of circuit pipes 15. The function of the air pump 14 is to send the temporarily stored powder back to the feed box 3 through the guide pipes 13 and the circuit pipes 15, realizing the recycling of powder and minimizing material waste. The left end of the circuit pipe 15 is fixedly connected to the right end of the feed box 3.

[0025] Refer to Figure 1 , Figure 2 and Figure 5, inside the bottom end of the box body 1, there is a mixing chamber 16 which is a place where metal powders are mixed after being screened. At the bottom end of the box body 1, there is a driving component fixedly connected, which is the core power part of the mixer. The driving component includes a motor 17. The top end of the motor 17 is fixedly connected to the bottom end of the box body 1. The driving end of the motor 17 is fixedly connected with a mixing rod 18. On the outer side of the mixing rod 18, multiple mixing blades 19 are fixedly connected to the adjacent side. The outer bottom end of the mixing rod 18 is rotatably connected to the inside of the bottom end of the box body 1. Multiple mixing blades 19 are fixedly connected to the outside of the driving component to stir and mix the metal powders. Inside the mixing blade 19, there is a telescopic spring 20. On the inner walls of the opposite sides of multiple mixing blades 19, there are sliding rods 21 slidably connected. On the adjacent sides of multiple sliding rods 21, there are limiting disks 22 fixedly connected. The outside of the limiting disk 22 is slidably connected to the inside of the mixing blade 19. On the opposite sides of multiple sliding rods 21, there are two scraping plates 23 fixedly connected. The function of the scraping plates 23 is to scrape the powders on the inner wall of the mixing chamber 16 during the mixing process, prevent the powders from adhering and accumulating, ensure the cleanliness of the mixing chamber 16 and the consistency of the mixing process. One side of the scraping plate 23 is in contact with the inner wall of the mixing chamber 16. On the left side of the box body 1, there is a feeding hole 24 which is a channel for discharging the mixed metal powders.

[0026] Working principle: First, open the sealing cover 4, put the metal powders into the inside of the feeding box 3, then close the sealing cover 4. Under the action of the sealing ring 5, it will form a seal with the feeding hole 6. Then the metal powders put into the feeding box 3 will fall onto the sieve plate 9. At this time, start the oscillator 11. Driven by the oscillator 11, the sieve plate 9 will vibrate. Then, under the elastic support and resilience of the telescopic rod 7 and the strong spring 8, the vibration frequency of the sieve plate 9 increases, screening the metal powders inside. The qualified ones will pass through the sieve plate 9 and fall into the mixing chamber 16, and the unqualified ones will fall into the temporary storage hole 12 under the vibration of the sieve plate 9. Then start the air pump 14. Driven by the air pump 14, the powders inside the temporary storage hole 12 will pass through the guiding pipe 13 and then be conveyed into the inside of the circulating pipe 15, and then return to the inside of the feeding box 3 from the circulating pipe 15, then fall onto the sieve plate 9, and be repeatedly screened. Then the powders that fall into the mixing chamber 16 will be stirred by the mixing blades 19 under the drive of the motor 17 driving the mixing rod 18 for mixing. Then, under the action of the mixing blades 19, the sliding rod 21 will also be driven to make the scraping plate 23 move, so that the scraping plate 23 slides on the inner wall of the mixing chamber 16. Then, under the elastic support of the telescopic spring 20, the force will be transmitted to the scraping plate 23 through the limiting disk 22, making the scraping plate 23 closely adhere to the inner wall of the mixing chamber 16.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. For a metal powder leakage-proof mixer, comprising a box body (1), characterized in that: The bottom end of the box body (1) is fixedly connected with support legs (2), the top end of the box body (1) is fixedly connected with a feeding box (3), the top end of the feeding box (3) is rotatably connected with a sealing assembly, the top end of the feeding box (3) is provided with a feeding hole (6), the inner top end of the box body (1) is fixedly connected with a plurality of telescopic rods (7), a strong spring (8) is sleeved outside the telescopic rods (7), the bottom ends of the plurality of telescopic rods (7) are fixedly connected with a sieve plate (9), two converging plates (10) are fixedly connected inside the top end of the sieve plate (9), an oscillator (11) is fixedly connected to the bottom end of the sieve plate (9), a temporary storage hole (12) is provided inside the box body (1), a plurality of guiding pipes (13) are fixedly connected to the inside of the right side of the temporary storage hole (12), a gas pump (14) is fixedly connected to the top ends of the plurality of guiding pipes (13), and a plurality of circulating pipes (15) are fixedly connected to the top end of the gas pump (14).

2. The leak-proof mixer for metal powder according to claim 1, characterized in that: The sealing assembly includes a sealing cover (4), the right end of the sealing cover (4) is rotatably connected to the inside of the top end of the feeding box (3), a sealing ring (5) is fixedly connected to the bottom end of the sealing cover (4), and the outside of the sealing ring (5) is in contact with the inside of the feeding hole (6).

3. The leak-proof mixer for metal powder according to claim 1, wherein: A mixing chamber (16) is provided inside the bottom end of the box body (1), a driving assembly is fixedly connected to the bottom end of the box body (1), a plurality of mixing blades (19) are fixedly connected to the outside of the driving assembly, a telescopic spring (20) is arranged inside the mixing blades (19), sliding rods (21) are slidably connected to the inner walls of the opposite sides of the plurality of mixing blades (19), limiting discs (22) are fixedly connected to the adjacent sides of the plurality of sliding rods (21), two scraping plates (23) are fixedly connected to the opposite sides of the plurality of sliding rods (21), and a discharging hole (24) is provided on the left side of the box body (1).

4. The leak-proof mixer for metal powder according to claim 1, wherein: One end of the strong spring (8) is fixedly connected to the inner top end of the box body (1), and the other end of the strong spring (8) is fixedly connected to the top end of the sieve plate (9).

5. The leak-proof mixer for metal powder according to claim 1, characterized in that: The outside of the sieve plate (9) is slidably connected to the inside of the top end of the box body (1), and the outside of the guiding pipe (13) is fixedly connected to the inside of the right side of the box body (1).

6. The leak-proof mixer for metal powder according to claim 1, characterized in that: The left end of the gas pump (14) is fixedly connected to the right side of the box body (1), and the left end of the circulating pipe (15) is fixedly connected to the right end of the feeding box (3).

7. The leak-proof mixer for metal powder according to claim 3, wherein: The driving includes a motor (17), the top end of the motor (17) is fixedly connected to the bottom end of the box body (1), the driving end of the motor (17) is fixedly connected with a mixing rod (18), the outside of the mixing rod (18) is fixedly connected to the adjacent sides of the plurality of mixing blades (19), and the outside bottom end of the mixing rod (18) is rotatably connected to the inside of the bottom end of the box body (1).

8. The metal powder leakage-proof mixer according to claim 3, wherein: The outside of the limiting disc (22) is slidably connected to the inside of the mixing blade (19), and one side of the scraping plate (23) is in contact with the inner wall of the mixing chamber (16).

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