Powder feeder for laser cladding additive manufacturing

Abstract

The utility model discloses a powder feeder for laser cladding additive manufacturing, which comprises a powder feeding barrel, the top of the powder feeding barrel is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating rod, the rotating rod is movably connected with the powder feeding barrel, the outer side of the rotating rod is fixedly connected with a first stirring rod, and the first stirring rod is movably connected with a second stirring rod. A discharging port is formed in the bottom of the powder feeding barrel, a connecting pipe is fixedly connected to the bottom of the powder feeding barrel, and the bottom of the connecting pipe communicates with a discharging pipe. According to the powder feeding device, the rotating rod and the first stirring rod are arranged, the first motor can drive the first stirring rod to stir the bottom of the powder feeding barrel, powder is prevented from being accumulated at the bottom of the powder feeding barrel, the first gear, the second gear and the second motor are arranged, and the second motor can drive the second gear to rotate on the outer side of the first gear; and the inner wall of the connecting pipe is scraped and cleaned by the first scraping plate, residual powder on the inner wall can be scraped off, and the powder is prevented from blocking the interior of the connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of powder feeders, in particular to a powder feeder for laser cladding additive manufacturing. Background Art

[0002] Laser cladding, also known as laser melting or laser cladding, is a new surface modification technology. It forms a metallurgically bonded additive cladding layer on the surface of the base layer by adding cladding materials to the surface of the substrate in a synchronous or pre-placed material manner, and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the substrate. Laser cladding is a new surface modification technology that adds cladding materials to the surface of the substrate and uses a high-energy-density laser beam to melt it together with a thin layer on the surface of the substrate. It mainly places the selected coating material on the surface of the cladding substrate in different ways of adding materials, and irradiates it with laser to melt it and a thin layer on the surface of the substrate at the same time, and then quickly solidifies to form a surface coating with extremely low dilution and metallurgically bonded to the substrate. Its purpose is to improve the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the substrate surface, so as to achieve modification and repair of the substrate surface. At present, the common laser cladding powder feeders on the market are usually of the self-weight type, that is, the cladding powder is allowed to pass through the powder outlet by the metal powder's own gravity. However, the cladding powder particles are fine and are easily compacted and agglomerated when exposed to moisture in the powder feeding barrel, blocking the outlet and making it impossible to complete the powder feeding process. In addition, when the humidity of the cladding powder reaches a certain level, or the powder feeding port is close to the high-temperature laser focus, it is easy to adhere to the inner wall of the powder feeding port, which will cause blockage over time and cause laser cladding defects. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide a powder feeder for laser cladding additive manufacturing, which has the advantages of preventing clogging and moisture.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A powder feeder for laser cladding additive manufacturing, comprising a powder feeding barrel, a first motor is fixedly connected to the top of the powder feeding barrel, a rotating rod is fixedly connected to the output end of the first motor, the rotating rod is movably connected to the powder feeding barrel, a first stirring rod is fixedly connected to the outside of the rotating rod, a discharge port is provided at the bottom of the powder feeding barrel, a connecting pipe is fixedly connected to the bottom of the powder feeding barrel, a discharge pipe is connected to the bottom of the connecting pipe, a first gear located at the outside of the connecting pipe is fixedly connected to the bottom of the powder feeding barrel, a first connecting block is movably connected to the outside of the connecting pipe, a second motor is fixedly connected to the inside of the first connecting block, a second gear is fixedly connected to the output end of the second motor, the first gear is meshed with the second gear, a first slider is fixedly connected to the bottom of the first connecting block, a first slide groove is provided at the top of the discharge pipe, the first slider is movably connected to the first slide groove, a first scraper located in the connecting pipe is fixedly connected to the outside of the first slider, and the first scraper is movably connected to the connecting pipe.

[0005] As a preferred embodiment of the utility model, a hot air blower is fixedly connected to the bottom of the powder delivery barrel, an air outlet of the hot air blower is connected to an air pipe, a through opening is opened on the inner side of the discharge pipe, and the air outlet of the air pipe is connected to the through opening.

[0006] As a preferred embodiment of the utility model, a connecting ring is fixedly connected to the bottom of the powder feeding barrel, a second sliding block is fixedly connected to the outer side of the first connecting block, a second sliding groove is opened on the inner side of the connecting ring, and the second sliding block is movably connected to the second sliding groove.

[0007] As a preferred embodiment of the utility model, a connecting rod is fixedly connected to the outer side of the rotating rod, a groove is provided inside the connecting rod, a spring is fixedly connected inside the groove, a moving block is movably connected inside the groove, the moving block is movably connected to the spring, and a second scraper is fixedly connected to the outer side of the moving block.

[0008] As a preferred embodiment of the utility model, a guide plate is fixedly connected to the outer side of the first scraper, and the guide plate is movably connected to the powder feeding barrel.

[0009] As a preferred embodiment of the present invention, a first heating device is fixedly connected to the outer side of the powder delivery barrel, and a second heating device is fixedly connected to the bottom of the powder delivery barrel.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model provides a rotating rod and a first stirring rod, and the first motor can drive the first stirring rod to stir the bottom of the powder delivery barrel to prevent the powder from accumulating at the bottom of the powder delivery barrel. By providing a first gear, a second gear and a second motor, the second motor can drive the second gear to rotate outside the first gear, so that the first scraper can scrape and clean the inner wall of the connecting pipe, and the residual powder on the inner wall can be scraped off to prevent the powder from clogging the inside of the connecting pipe.

[0012] 2. The utility model provides an air pipe and a through port, and a hot air blower can blow and clean the inside of the discharge pipe to prevent the powder from clogging the inside of the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 The utility model structure Figure 1 The enlarged schematic diagram at A in the middle;

[0015] Figure 3 It is a side view schematic diagram of the structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the structural surface of the utility model.

[0017] In the figure: 1. powder delivery barrel; 2. first motor; 3. rotating rod; 4. first stirring rod; 5. discharge port; 6. connecting pipe; 7. discharge pipe; 8. first gear; 9. first connecting block; 10. second motor; 11. second gear; 12. first slider; 13. first slide groove; 14. first scraper; 15. hot air blower; 16. air pipe; 17. through port; 18. connecting ring; 19. second slider; 20. second slide groove; 21. connecting rod; 22. groove; 23. spring; 24. moving block; 25. second scraper; 26. guide plate; 27. first heating device; 28. second heating device. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 4As shown, a powder feeder for laser cladding additive manufacturing comprises a powder feeding barrel 1, a first motor 2 is fixedly connected to the top of the powder feeding barrel 1, a rotating rod 3 is fixedly connected to the output end of the first motor 2, the rotating rod 3 is movably connected to the powder feeding barrel 1, a first stirring rod 4 is fixedly connected to the outer side of the rotating rod 3, a discharge port 5 is provided at the bottom of the powder feeding barrel 1, a connecting pipe 6 is fixedly connected to the bottom of the powder feeding barrel 1, a discharge pipe 7 is connected to the bottom of the connecting pipe 6, a first gear 8 located on the outer side of the connecting pipe 6 is fixedly connected to the bottom of the powder feeding barrel 1, and the outer side of the connecting pipe 6 is connected to the discharge pipe 7. The side is movably connected with a first connecting block 9, the interior of the first connecting block 9 is fixedly connected with a second motor 10, the output end of the second motor 10 is fixedly connected with a second gear 11, the first gear 8 is meshed with the second gear 11, the bottom of the first connecting block 9 is fixedly connected with a first slider 12, the top of the discharge pipe 7 is provided with a first slide groove 13, the first slider 12 is movably connected with the first slide groove 13, the outer side of the first slider 12 is fixedly connected with a first scraper 14 located in the connecting pipe 6, and the first scraper 14 is movably connected to the connecting pipe 6.

[0020] refer to Figures 1 to 4 A hot air blower 15 is fixedly connected to the bottom of the powder delivery barrel 1 , and the air outlet of the hot air blower 15 is connected to an air pipe 16 . A through hole 17 is opened on the inner side of the discharge pipe 7 , and the air outlet of the air pipe 16 is connected to the through hole 17 .

[0021] As a technical optimization solution of the utility model, the hot air blower 15 can blow and clean the inside of the discharge pipe 7 through the air pipe 16 and the through port 17 to prevent the powder from clogging the inside of the discharge pipe 7.

[0022] refer to Figures 1 to 4 A connecting ring 18 is fixedly connected to the bottom of the powder delivery barrel 1, a second slider 19 is fixedly connected to the outer side of the first connecting block 9, a second slide groove 20 is opened on the inner side of the connecting ring 18, and the second slider 19 is movably connected to the second slide groove 20.

[0023] As a technical optimization solution of the present invention, by providing the connecting ring 18 and the second slider 19, the second slider 19 can rotate inside the connecting ring 18, thereby increasing the stability of the first connecting block 9 when moving.

[0024] refer to Figures 1 to 4 A connecting rod 21 is fixedly connected to the outer side of the rotating rod 3, a groove 22 is opened inside the connecting rod 21, a spring 23 is fixedly connected inside the groove 22, a moving block 24 is movably connected inside the groove 22, the moving block 24 is movably connected to the spring 23, and a second scraper 25 is fixedly connected to the outer side of the moving block 24.

[0025] As a technical optimization solution of the utility model, by providing the connecting rod 21, the moving block 24 and the spring 23, the second scraper 25 can be automatically pushed to move outward, so that it can scrape and clean the inner wall of the powder feeding barrel 1 to prevent powder from remaining on the inner wall.

[0026] refer to Figures 1 to 4 A guide plate 26 is fixedly connected to the outer side of the first scraper 14 , and the guide plate 26 is movably connected to the powder feeding barrel 1 .

[0027] As a technical optimization solution of the utility model, by providing the guide plate 26 , the bottom of the powder feeding barrel 1 can be scraped, so that the powder can enter the connecting pipe 6 more easily through the discharge port 5 .

[0028] refer to Figures 1 to 4 A first heating device 27 is fixedly connected to the outer side of the powder delivery barrel 1 , and a second heating device 28 is fixedly connected to the bottom of the powder delivery barrel 1 .

[0029] As a technical optimization solution of the utility model, by providing the first heating device 27 and the second heating device 28, the outer side and the bottom of the powder feeding barrel 1 can be heated to evaporate the moisture in the powder and prevent the powder from getting damp.

[0030] The working principle and use process of the utility model are as follows: the first motor 2 drives the rotating rod 3 to rotate, the rotating rod 3 drives the first stirring rod 4 and the connecting rod 21 to rotate, the connecting rod 21 drives the moving block 24 to rotate the second scraper 25, and the inner wall of the powder delivery barrel 1 is cleaned, the first stirring rod 4 drives the guide plate 26 to rotate, so that the powder at the bottom of the powder delivery barrel 1 enters the connecting pipe 6 through the discharge port 5, the outer side of the powder delivery barrel 1 is heated by the first heating device 27, the bottom of the powder delivery barrel 1 is heated by the second heating device 28, and the second gear is driven by the second motor 10. The wheel 11 rotates on the outside of the first gear 8. When the second gear 11 rotates, it drives the first connecting block 9 to move left and right. The first connecting block 9 drives the first slider 12 and the second slider 19 to move, so that the second slider 19 moves in the second slide groove 20. The first slider 12 moves in the first slide groove 13. The first scraper 14 is driven by the first slider 12 to rotate inside the connecting pipe 6. The inner wall of the connecting pipe 6 is scraped and cleaned by the first scraper 14. After the discharging is completed, the hot air blower 15 blows air into the inside of the discharging pipe 7 through the air pipe 16 and the through-port 17.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder feeder for laser cladding additive manufacturing, comprising a powder feeder barrel (1), characterized in that: The top of the powder delivery barrel (1) is fixedly connected to a first motor (2), the output end of the first motor (2) is fixedly connected to a rotating rod (3), the rotating rod (3) is movably connected to the powder delivery barrel (1), the outer side of the rotating rod (3) is fixedly connected to a first stirring rod (4), the bottom of the powder delivery barrel (1) is provided with a discharge port (5), the bottom of the powder delivery barrel (1) is fixedly connected to a connecting pipe (6), the bottom of the connecting pipe (6) is connected to a discharge pipe (7), the bottom of the powder delivery barrel (1) is fixedly connected to a first gear (8) located outside the connecting pipe (6), and the outer side of the connecting pipe (6) is movably connected to a first connecting block (9), a second motor (10) is fixedly connected inside the first connecting block (9), a second gear (11) is fixedly connected to the output end of the second motor (10), the first gear (8) is meshed with the second gear (11), a first slider (12) is fixedly connected to the bottom of the first connecting block (9), a first slide groove (13) is provided on the top of the discharge pipe (7), the first slider (12) is movably connected to the first slide groove (13), the outer side of the first slider (12) is fixedly connected to a first scraper (14) located in the connecting pipe (6), and the first scraper (14) is movably connected to the connecting pipe (6).

2. A powder feeder for laser cladding additive manufacturing according to claim 1, characterized in that: A hot air blower (15) is fixedly connected to the bottom of the powder delivery barrel (1), and the air outlet of the hot air blower (15) is connected to an air pipe (16). A through hole (17) is provided on the inner side of the discharge pipe (7), and the air outlet of the air pipe (16) is connected to the through hole (17).

3. The powder feeder for laser cladding additive manufacturing according to claim 1, characterized in that: A connecting ring (18) is fixedly connected to the bottom of the powder delivery barrel (1), a second sliding block (19) is fixedly connected to the outer side of the first connecting block (9), a second sliding groove (20) is provided on the inner side of the connecting ring (18), and the second sliding block (19) is movably connected to the second sliding groove (20).

4. The powder feeder for laser cladding additive manufacturing according to claim 1, characterized in that: The outer side of the rotating rod (3) is fixedly connected to a connecting rod (21), a groove (22) is provided inside the connecting rod (21), a spring (23) is fixedly connected inside the groove (22), a moving block (24) is movably connected inside the groove (22), the moving block (24) is movably connected to the spring (23), and a second scraper (25) is fixedly connected to the outer side of the moving block (24).

5. The powder feeder for laser cladding additive manufacturing according to claim 1, characterized in that: A guide plate (26) is fixedly connected to the outer side of the first scraper (14), and the guide plate (26) is movably connected to the powder delivery barrel (1).

6. The powder feeder for laser cladding additive manufacturing according to claim 1, characterized in that: A first heating device (27) is fixedly connected to the outer side of the powder delivery barrel (1), and a second heating device (28) is fixedly connected to the bottom of the powder delivery barrel (1).

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