Screening device for preparing alloy powder for laser welding saw blade
By designing a multi-screening device, the problem that single-aperture screening in existing technologies cannot effectively remove impurity particles has been solved, achieving efficient classification and uniformity of alloy powder, and improving the quality and production efficiency of laser welding saw blades.
Patent Information
- Application Number
- CN202520113213.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing alloy powder screening devices for laser welding saw blades can only perform single-aperture screening, which makes it difficult to effectively remove impurity particles of different particle sizes from complex alloy powders, thus affecting the welding effect.
A screening device was designed, comprising a conveying pipe, a material flow chamber, a large-hole screening plate, a small-hole screening plate, and a classification collection box. Through the cooperation of top and side fans, multiple screenings are achieved, and a pull-out assembly and a drive assembly are provided to ensure uniform material distribution and classified collection.
This technology enables multiple sieving of alloy powders, improving powder uniformity and yield, reducing the content of defective particles, enhancing the performance and precision of laser-welded saw blades, and lowering production costs.
Smart Images
Figure CN223832807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder metallurgy technology, and in particular to a screening device for preparing alloy powder for laser welding saw blades. Background Technology
[0002] Laser-welded saw blades are commonly used for cutting hard materials such as metal, stone, and concrete. When producing these saw blades, the alloy powder needs to be precisely screened to ensure the uniformity and appropriate particle size distribution of the alloy powder during welding. The screening device can remove excessively large, small, or impurity particles, thereby ensuring the stability and quality of the welding process.
[0003] A screening device for preparing alloy powder for laser welding saw blades includes a material flow chamber, a large-hole sieve plate, and a small-hole sieve plate. The alloy powder is screened by vibration, rotation, and airflow to separate powder that meets the particle size requirements and remove unqualified particles. This screening method ensures that the alloy powder used for laser welding has good quality and uniformity, thereby improving the performance and precision of the laser welding saw blade.
[0004] In existing technologies, some alloy powder screening devices use a single-aperture screening plate for screening. A single-aperture screening plate can only perform screening once, which is difficult to efficiently remove impurity particles of various particle sizes. In complex alloy powders, the particle size difference is large, and a single-aperture screening plate cannot effectively separate powders of different particle sizes, resulting in the screening powder still containing unqualified particles, which affects the laser welding effect. To address this issue, a screening device for preparing alloy powder for laser welding saw blades is proposed. Utility Model Content
[0005] This invention proposes a screening device for preparing alloy powder for laser welding saw blades, which aims to improve the problem that some existing devices cannot perform multiple screenings of materials.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A screening device for preparing alloy powder for laser welding saw blades includes a conveying pipe, a material flow chamber fixedly connected to the bottom of the conveying pipe, a support base fixedly connected to the bottom of the material flow chamber, a top fan fixedly connected to the top of the material flow chamber, a side fan fixedly connected to the left side of the material flow chamber, a large-hole screening plate fixedly connected to the upper inside of the material flow chamber, a small-hole screening plate fixedly connected to the lower inside of the material flow chamber, a first sorting collection box fixedly connected to the side of the material flow chamber away from the side fan, a second sorting collection box fixedly connected to the bottom of the first sorting collection box, a third sorting collection box fixedly connected to the bottom of the second sorting collection box, and a pull-out assembly for easy material removal fixedly connected inside the first sorting collection box.
[0008] As a further description of the above technical solution:
[0009] The pull-out assembly includes two sliding rails and a pull-out box. The two sliding rails are externally fixedly connected to the inside of the sorting and collection box, and the inner sides of the two sliding rails are slidably connected to the outside of the pull-out box.
[0010] As a further description of the above technical solution:
[0011] A support frame is fixedly connected to the bottom of the conveying pipe, a first feeding plate is fixedly connected to the top of the conveying pipe, a second feeding plate is rotatably connected to the top of the first feeding plate, a storage funnel is fixedly connected to the top of the second feeding plate, a driving assembly is fixedly connected to the top of the storage funnel, a stirring rod is rotatably connected to the driving assembly, and a scraper is rotatably connected to the driving assembly.
[0012] As a further description of the above technical solution:
[0013] A sealing cover is fixedly connected to the top of the storage funnel, and a feed inlet is fixedly connected to the top of the sealing cover.
[0014] As a further description of the above technical solution:
[0015] The drive assembly includes a motor and an output shaft. The bottom of the motor is fixedly connected to the top of the sealing cover, and the top of the output shaft is fixedly connected to the bottom of the motor.
[0016] As a further description of the above technical solution:
[0017] The bottom of the support base is fixedly connected to the top of the conveying pipe, and the bottom of the support frame is fixedly connected to the top of the conveying pipe.
[0018] As a further description of the above technical solution:
[0019] The sliding track is externally fixedly connected to the inside of the second sorting and collection box, the sliding track is externally fixedly connected to the inside of the third sorting and collection box, the pull-out box is externally slidably connected to the inside of the second sorting and collection box, and the pull-out box is externally slidably connected to the inside of the third sorting and collection box.
[0020] As a further description of the above technical solution:
[0021] The left side of the second sorting and collection box is fixedly connected to the right side of the material flow chamber, and the left side of the third sorting and collection box is fixedly connected to the right side of the material flow chamber.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the material enters the material flow chamber through the conveying pipe. Under the airflow of the top and side fans, the material is screened multiple times through two screening plates with different openings and then enters three classification boxes. The multiple screening and classification can classify the powder in detail according to the requirements of different particle sizes and compositions. The screened powder can be collected and used, and the unqualified powder can be excluded, thereby improving the utilization rate of raw materials and indirectly saving production costs.
[0024] 2. In this utility model, the material enters the storage funnel through the feed inlet. The scraper prevents the material from adhering to the cylinder wall. The motor drives the first feeding plate to rotate through the output shaft. When the holes on the first and second feeding plates overlap, the material falls in. By intermittent feeding, it is possible to effectively avoid the accumulation of too much material in the conveying pipeline, which would cause blockage and poor material flow, and reduce the risk of material jamming. Attached Figure Description
[0025] Figure 1 This is a perspective view of a screening device for preparing alloy powder for laser welding saw blades, as proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the material flow cavity of a screening device for preparing alloy powder for laser welding saw blades, as proposed in this utility model.
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0029] Legend:
[0030] 1. Conveying pipe; 2. Material flow chamber; 3. Support base; 4. Top fan; 5. Side fan; 6. Large-hole sieve plate; 7. Small-hole sieve plate; 8. Classification collection box one; 9. Classification collection box two; 10. Classification collection box three; 11. Sliding track; 12. Pull-out box; 13. Support frame; 14. Feeding plate one; 15. Feeding plate two; 16. Storage funnel; 17. Sealing cover; 18. Feed inlet; 19. Motor; 20. Output shaft; 21. Stirring rod; 22. Scraper. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 , Figure 2 , Figure 4 This utility model provides an embodiment of a screening device for preparing alloy powder for laser welding saw blades, including a conveying pipe 1. The conveying pipe 1 is responsible for conveying alloy powder material. The material moves through the conveying pipe 1 and is conveyed to the subsequent screening and classification section. A material flow chamber 2 is fixedly connected to the bottom of the conveying pipe 1. The material flow chamber 2 is an important cavity, mainly used to contain and convey alloy powder. Through the cooperation of the top fan 4 and the side fan 5, the material flows and is evenly distributed in the cavity. A support base 3 is fixedly connected to the bottom of the material flow chamber 2. The support base 3 is the lower support part of the material flow chamber 2, which is used to ensure the stable operation of the equipment. The bottom of the support base 3 is fixedly connected to the top of the conveying pipe 1. A top fan 4 is fixedly connected to the top of the material flow chamber 2. A side fan 5 is fixedly connected to the left side of the material flow chamber 2. The top fan 4 and the side fan 5 are responsible for flowing air into the material flow chamber 2, which plays a role in pushing and conveying. The top fan 4 can help the material be evenly distributed, and the side fan 5 can increase the air flow, push the material to move, and avoid accumulation and blockage.
[0033] A large-aperture sieve plate 6 is fixedly connected to the upper end of the material flow chamber 2, and a small-aperture sieve plate 7 is fixedly connected to the lower end of the material flow chamber 2. The large-aperture sieve plate 6 and the small-aperture sieve plate 7, located at the upper and lower ends of the material flow chamber 2, serve to screen materials. The large-aperture sieve plate 6 is used to screen larger material particles, while the small-aperture sieve plate 7 is used to screen finer alloy powders. A sorting collection box 1 8 is fixedly connected to the side of the material flow chamber 2 away from the side fan 5. The sorting collection box 1 8 is used to collect larger particles selected by the large-aperture sieve plate 6. The sorting collection box 1 8, sorting collection box 2 9, and sorting collection box 3 10 are respectively... Used to collect alloy powder of different particle sizes, the material is screened by large and small hole sieve plates 7, and the material will be divided into different categories and enter the corresponding collection boxes respectively. The bottom of the first classification collection box 8 is fixedly connected to the second classification collection box 9, and the left side of the second classification collection box 9 is fixedly connected to the right side of the material flow chamber 2. The second classification collection box 9 is used to collect the smaller particles of material after screening. The bottom of the second classification collection box 9 is fixedly connected to the third classification collection box 10, and the left side of the third classification collection box 10 is fixedly connected to the right side of the material flow chamber 2. The third classification collection box 10 is used to collect the material after further screening.
[0034] The internal structure of the first sorting collection box 8 is fixedly connected to a pull-out assembly for easy material removal. The pull-out assembly is designed to facilitate the removal of sorted materials from the first sorting collection box 8, the second sorting collection box 9, and the third sorting collection box 10. The pull-out assembly includes two sliding rails 11 and a pull-out box 12. The two sliding rails 11 are externally fixedly connected to the inside of the first sorting collection box 8, the second sorting collection box 9, and the third sorting collection box 10. The sliding rails 11 and the pull-out box 12 move smoothly between the sorting collection boxes. The inner sides of the two sliding rails 11 are slidably connected to the outer sides of the pull-out box 12. The outer sides of the pull-out box 12 are slidably connected to the inside of the second sorting collection box 9 and the third sorting collection box 10. The pull-out box 12 is the material collection and storage part and can be easily removed through the sliding rails 11.
[0035] Reference Figure 1 , Figure 2 , Figure 3A support frame 13 is fixedly connected to the bottom of the conveying pipe 1. The support frame 13 is responsible for supporting the entire structure of the conveying pipe 1, maintaining its stability, and preventing damage caused by uneven stress on the pipe. The bottom of the support frame 13 is fixedly connected to the top of the conveying pipe 1. A discharge plate 14 is fixedly connected to the top of the discharge plate 14. A discharge plate 25 is rotatably connected to the top of the discharge plate 14. The discharge plate 14 has a fixed structure. The discharge plate 25 is rotated by the motor 19 to control the flow rate and discharge speed of the material. A storage funnel 16 is fixedly connected to the top of the discharge plate 25. The storage funnel 16 is responsible for storing the material. A drive assembly is fixedly connected to the top of the storage funnel 16. The drive assembly includes a motor 19 and an output shaft 20. The bottom of the motor 19 is fixedly connected to the top of the sealing cover 17 to provide power and drive the output shaft 20 to rotate. The top of the output shaft 20 is fixedly connected to the bottom of the motor 19. The output shaft 20 is connected to the motor 19 to transmit power to the stirring rod 21 and the scraper 22.
[0036] A stirring rod 21 is rotatably connected to the drive assembly. The stirring rod 21 stirs the material by rotating, ensuring that the material flows evenly in the funnel. A scraper 22 is also rotatably connected to the drive assembly. The scraper 22 cleans the accumulated material on the funnel wall, ensuring that the material flows in smoothly. The drive assembly is used to control the flow and stirring of the material in the storage funnel 16. The stirring rod 21 and the scraper 22 help to distribute the material evenly and prevent clumping and blockage. A sealing cover 17 is fixedly connected to the top of the storage funnel 16. An inlet 18 is fixedly connected to the top of the sealing cover 17. The sealing cover 17 is used to seal the storage funnel 16 to prevent leakage and external contamination of the material during storage. The inlet 18 is the conveying port for the material to enter the storage funnel 16, ensuring that the material can enter smoothly while maintaining a seal.
[0037] Working Principle: Alloy powder material is conveyed through conveying pipe 1 to the material flow chamber 2 at the top of the support base 3. Inside the material flow chamber 2, the top fan 4 and the side fan 5 work together to push and evenly distribute the material, ensuring smooth flow within the chamber and preventing accumulation and blockage. The upper and lower ends of the material flow chamber 2 are respectively equipped with a large-hole sieve plate 6 and a small-hole sieve plate 7. The former is used to screen larger material particles, while the latter is used to screen finer alloy powder. During the flow process, after passing through the large-hole sieve plate 6, larger particles enter the first classification collection box 8, while smaller particles continue to fall and enter the small-hole sieve plate 7 for further screening. The material passing through the small-hole sieve plate 7 is guided to the second and third classification collection boxes 9 and 10, respectively collecting alloy powder of different particle sizes. To facilitate the removal of the classified material, the first, second, and third classification collection boxes 8, 9, and 10 are equipped with pull-out components. Through the design of the sliding rail 11 and the pull-out box 12, operators can smoothly remove the material from each collection box.
[0038] During the material conveying and screening process, the support frame 13 provides stable support for the conveying pipe 1. The material flows between the first discharge plate 14 and the second discharge plate 15 at the top of the conveying pipe 1. The second discharge plate 15 is driven to rotate by the motor 19. When it coincides with the hole of the first discharge plate 14, the material flows into the pipe for conveying. The flow rate and discharge speed of the material are controlled. The storage funnel 16 is responsible for storing the material. The output shaft 20 of the motor 19 drives the stirring rod 21 and the scraper 22 to ensure that the material flows evenly in the funnel and prevents agglomeration and blockage. The design of the sealing cover 17 and the feed port 18 ensures the safety and hygiene of the material during the storage process and avoids leakage and contamination.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A screening device for preparing alloy powder for laser welding saw blades, comprising a conveying pipe (1), characterized in that: The bottom of the conveying pipe (1) is fixedly connected to a material flow chamber (2), the bottom of the material flow chamber (2) is fixedly connected to a support base (3), the top of the material flow chamber (2) is fixedly connected to a top fan (4), the left side of the material flow chamber (2) is fixedly connected to a side fan (5), the upper inside of the material flow chamber (2) is fixedly connected to a large-hole screening plate (6), the lower inside of the material flow chamber (2) is fixedly connected to a small-hole screening plate (7), a first classification collection box (8) is fixedly connected to the side of the material flow chamber (2) away from the side fan (5), a second classification collection box (9) is fixedly connected to the bottom of the first classification collection box (8), a third classification collection box (10) is fixedly connected to the bottom of the second classification collection box (9), and a pull-out assembly for easy material removal is fixedly connected inside the first classification collection box (8).
2. The screening device for preparing alloy powder for laser welding saw blades according to claim 1, characterized in that: The pull-out assembly includes two sliding rails (11) and a pull-out box (12). The two sliding rails (11) are externally fixedly connected to the inside of the sorting and collection box (8), and the inner sides of the two sliding rails (11) are slidably connected to the outside of the pull-out box (12).
3. The screening device for preparing alloy powder for laser welding saw blades according to claim 1, characterized in that: A support frame (13) is fixedly connected to the bottom of the conveying pipe (1), a first feeding plate (14) is fixedly connected to the top of the conveying pipe (1), a second feeding plate (15) is rotatably connected to the top of the first feeding plate (14), a storage funnel (16) is fixedly connected to the top of the second feeding plate (15), a driving assembly is fixedly connected to the top of the storage funnel (16), a stirring rod (21) is rotatably connected to the driving assembly, and a scraper (22) is rotatably connected to the driving assembly.
4. A screening device for preparing alloy powder for laser welding saw blades according to claim 3, characterized in that: The top of the storage funnel (16) is fixedly connected to a sealing cover (17), and the top of the sealing cover (17) is fixedly connected to a feed inlet (18).
5. A screening device for preparing alloy powder for laser welding saw blades according to claim 4, characterized in that: The drive assembly includes a motor (19) and an output shaft (20). The bottom of the motor (19) is fixedly connected to the top of the sealing cover (17), and the top of the output shaft (20) is fixedly connected to the bottom of the motor (19).
6. A screening device for preparing alloy powder for laser welding saw blades according to claim 3, characterized in that: The bottom of the support base (3) is fixedly connected to the top of the conveying pipe (1), and the bottom of the support frame (13) is fixedly connected to the top of the conveying pipe (1).
7. A screening device for preparing alloy powder for laser welding saw blades according to claim 2, characterized in that: The external sliding track (11) is fixedly connected to the inside of the second sorting collection box (9), the external sliding track (11) is fixedly connected to the inside of the third sorting collection box (10), the external pull-out box (12) is slidably connected to the inside of the second sorting collection box (9), and the external pull-out box (12) is slidably connected to the inside of the third sorting collection box (10).
8. A screening device for preparing alloy powder for laser welding saw blades according to claim 1, characterized in that: The left side of the second sorting and collecting box (9) is fixedly connected to the right side of the material flow cavity (2), and the left side of the third sorting and collecting box (10) is fixedly connected to the right side of the material flow cavity (2).