Adjustable powder feeding device for laser additive manufacturing

Abstract

The adjustable powder feeding device for laser additive manufacturing comprises a powder storage barrel, a fixing block is fixed to the middle of the lower surface of the powder storage barrel, an indwelling hole penetrating through the upper surface and the lower surface of the middle of the fixing block is formed in the middle of the fixing block, and a second through hole corresponding to the indwelling hole is formed in the middle of the lower end of the powder storage barrel. A baffle is slidably installed in the middle of the interior of the fixing block in the horizontal direction, a powder conveying pump communicating with the first connecting cylinder is installed at the lower end of the first connecting cylinder, in the using process, the powder feeding amount can be adjusted according to the using requirement of external laser additive printing equipment, the powder feeding amount of the powder feeding device can be conveniently adjusted, and the powder feeding efficiency is improved. And therefore, the application range of the powder feeding device can be guaranteed, the laser additive printing processing effect of external laser additive printing equipment can be guaranteed, and the powder feeding device can be used conveniently.

Description

Technical Field

[0001] The utility model relates to the field of powder feeding devices, in particular to an adjustable powder feeding device for laser additive manufacturing. Background Art

[0002] Laser additive manufacturing, also known as 3D printing, is a technology that uses digital model files as the basis and uses bondable materials such as powdered metal or plastic to construct objects by printing layer by layer. Laser additive manufacturing technology, as an advanced manufacturing process, has been widely used in many fields such as aerospace, automobile manufacturing, and biomedicine.

[0003] In laser additive manufacturing, powder raw materials need to be transported through a powder feeding device. In laser additive manufacturing, the powder feeding device is an extremely critical link. During the laser additive manufacturing process, the performance of the powder feeding device directly affects the manufacturing quality and efficiency. The powder is transported through the powder feeding device to facilitate laser additive printing processing.

[0004] However, when the existing powder feeding device is used, it is not conducive to adjusting the powder feeding amount according to the use requirements. The inability to conveniently adjust the powder feeding device will affect the application scope of the powder feeding device and the effect of laser additive processing, which is not conducive to the use of the powder feeding device.

[0005] Therefore, we proposed an adjustable powder feeding device for laser additive manufacturing. Utility Model Content

[0006] The purpose of the utility model is to provide an adjustable powder feeding device for laser additive manufacturing to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An adjustable powder feeding device for laser additive manufacturing comprises a powder storage barrel, a fixed block is fixed in the middle of the lower surface of the powder storage barrel, a retention hole penetrating the upper and lower surfaces of the middle of the fixed block is opened in the middle of the fixed block, a second through hole is opened in the middle of the lower end of the powder storage barrel corresponding to the retention hole, a baffle is slidably installed in the middle of the fixed block along the horizontal direction, a first connecting cylinder is fixed in the middle of the lower surface of the fixed block and located outside the retention hole, and a connected powder conveying pump is installed at the lower end of the first connecting cylinder.

[0009] As a further solution of the utility model: a matching retaining groove is opened in the middle of the fixed block corresponding to the baffle plate, and the baffle plate is located in the retaining groove on the fixed block and is slidably connected with the retaining groove along the horizontal direction.

[0010] By adopting the above technical solution: the provision of the retention groove on the fixed block helps to limit the baffle.

[0011] As a further solution of the utility model: the fixed block is in a horizontal state, the baffle is in a horizontal state, a hydraulic cylinder is installed in the middle of the surface of one end of the fixed block, and the hydraulic cylinder is in a horizontal state.

[0012] By adopting the above technical solution: the setting of the fixed block can fix and limit the hydraulic cylinder, which is convenient for stable use of the hydraulic cylinder.

[0013] As a further solution of the utility model: the output rod of the hydraulic cylinder faces the fixed block and penetrates the inner surface and the outer surface of the corresponding position on the fixed block, and the end of the hydraulic cylinder output rod close to the baffle is fixedly connected to the corresponding position on the baffle.

[0014] By adopting the above technical solution: the provision of the hydraulic cylinder helps to drive the baffle to move, making it easier to use the baffle.

[0015] As a further solution of the utility model: the powder storage barrel is in a vertical state, the second through hole penetrates the inner surface and the outer surface of the corresponding position on the powder storage barrel, the top of the powder storage barrel is in an open state and a matching shielding plate is fixedly installed.

[0016] By adopting the above technical solution: the shielding plate is provided, the opening at the top of the powder storage barrel can be shielded and protected.

[0017] As a further solution of the utility model: a powder inlet barrel is fixedly installed in the middle of the upper surface of the baffle plate, and a matching first through hole is opened in the middle of the baffle plate corresponding to the inner ring surface of the powder inlet barrel, and the first through hole passes through the upper surface and the lower surface of the middle of the baffle plate.

[0018] By adopting the above technical solution: the setting of the shielding plate can fix and limit the powder inlet tube, which is convenient for stable use of the powder inlet tube.

[0019] As a further solution of the utility model: a mounting frame is fixedly installed on the outer side of the lower end of the outer ring surface of the powder storage barrel, the mounting frame is in a horizontal state, and bolts are threadedly inserted in the four corners of the mounting frame along the vertical direction.

[0020] By adopting the above technical solution: the provision of the installation frame is helpful for installing and limiting the powder storage barrel.

[0021] As a further solution of the utility model: a second connecting tube is installed at the interface on the lower side of the powder delivery pump, and the second connecting tube is in a vertical state.

[0022] By adopting the above technical solution: the provision of a powder delivery pump can deliver the powder to the inner side of the second connecting cylinder.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. In the utility model, the amount of powder delivered is adjusted by adjusting the opening between the retaining hole in the fixed block and the baffle, which helps to adjust the powder delivery amount according to the use requirements of external laser additive printing equipment during use. The powder delivery amount of the powder delivery device can be easily adjusted to ensure the applicable scope of use of the powder delivery device, help ensure the effect of laser additive printing processing by external laser additive printing equipment, and facilitate the use of the powder delivery device.

[0025] 2. In the utility model, the fixed block can fix and limit the hydraulic cylinder, which is helpful for the stable use of the hydraulic cylinder. The output rod of the hydraulic cylinder can drive the baffle to move in the horizontal direction. The baffle will move along the retention groove on the fixed block. The fixed block can limit the baffle through the retention groove, which is convenient for the stable use of the baffle. When the baffle moves, the size of the opening on the retention hole in the fixed block will be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the fixed block structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the baffle structure of the utility model;

[0029] Figure 4 It is a schematic diagram of the installation frame structure of the utility model.

[0030] In the figure: 1. powder storage barrel; 2. mounting frame; 3. bolts; 4. baffle; 5. powder inlet barrel; 6. first through hole; 7. second through hole; 8. fixing block; 9. retention hole; 10. retention groove; 11. shielding plate; 12. hydraulic cylinder; 13. first connecting cylinder; 14. second connecting cylinder; 15. powder delivery pump. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figures 1 to 4 In the embodiment of the utility model, an adjustable powder feeding device for laser additive manufacturing includes a powder storage barrel 1, a fixed block 8 is fixed in the middle of the lower surface of the powder storage barrel 1, a retention hole 9 penetrating the upper and lower surfaces of the middle of the fixed block 8 is opened in the middle of the fixed block 8, a second through hole 7 is opened in the middle of the lower end of the powder storage barrel 1 corresponding to the retention hole 9, a baffle 4 is slidably installed in the middle of the fixed block 8 along the horizontal direction, a first connecting tube 13 is fixed in the middle of the lower surface of the fixed block 8 and located outside the retention hole 9, and the lower end of the first connecting tube 13 A connected powder delivery pump 15 is installed, and the amount of delivered powder is adjusted by adjusting the opening between the retaining hole 9 on the fixed block 8 and the baffle 4. When in use, it is helpful to adjust the powder delivery amount according to the use requirements of external laser additive printing equipment. The powder delivery amount of the powder delivery device can be easily adjusted to ensure the applicable scope of use of the powder delivery device, help ensure the effect of laser additive printing processing by external laser additive printing equipment, and facilitate the use of the powder delivery device.

[0033] Among them, a matching retention groove 10 is opened in the middle of the fixed block 8 corresponding to the baffle 4, the baffle 4 is located in the retention groove 10 on the fixed block 8 and is slidably connected with the retention groove 10 in the horizontal direction, and the retention groove 10 on the fixed block 8 helps to limit the baffle 4; the fixed block 8 is in a horizontal state, the baffle 4 is in a horizontal state, and a hydraulic cylinder 12 is installed in the middle of the surface of one end of the fixed block 8, the hydraulic cylinder 12 is in a horizontal state, and the fixed block 8 can fix and limit the hydraulic cylinder 12, which is convenient for the stable use of the hydraulic cylinder 12; the output rod of the hydraulic cylinder 12 faces the fixed block 8 and passes through the inner and outer surfaces of the corresponding position on the fixed block 8, and the end of the output rod of the hydraulic cylinder 12 close to the baffle 4 is fixedly connected to the corresponding position on the baffle 4, and the hydraulic cylinder 12 helps to drive the baffle 4 to move, which is convenient for the use of the baffle 4.

[0034] The powder storage barrel 1 is in a vertical state, and the second through hole 7 passes through the inner surface and the outer surface of the corresponding position on the powder storage barrel 1. The top of the powder storage barrel 1 is in an open state and a matching shielding plate 11 is fixedly installed thereon. The shielding plate 11 can shield and protect the opening at the top of the powder storage barrel 1; a powder inlet barrel 5 is fixedly installed thereon in the middle of the upper surface of the shielding plate 11, and a matching first through hole 6 is provided in the middle of the shielding plate 11 corresponding to the inner ring surface of the powder inlet barrel 5. The first through hole 6 passes through the upper surface and the lower surface of the middle of the shielding plate 11. The shielding plate 11 can fix and limit the powder inlet barrel 5, so as to facilitate the stable use of the powder inlet barrel 5.

[0035] An installation frame 2 is fixedly installed on the outer side of the lower end of the outer ring surface of the powder storage barrel 1. The installation frame 2 is in a horizontal state. Bolts 3 are threadedly inserted in the vertical direction at the four corners of the installation frame 2. The installation frame 2 helps to install and limit the powder storage barrel 1; a second connecting cylinder 14 is installed at the interface on the lower side of the powder delivery pump 15. The second connecting cylinder 14 is in a vertical state. The powder delivery pump 15 can deliver powder to the inner side of the second connecting cylinder 14.

[0036] The working principle of the utility model is: during use, the installation frame 2 is corresponded to the corresponding position on the external laser additive printing device, and the installation frame 2 is further installed between the corresponding position on the external laser additive printing device through the bolts 3. The bolts 3 can fix and limit the installation frame 2, which is convenient for the stable use of the installation frame 2. The installation frame 2 can support and limit the powder storage barrel 1 and the various components assembled on the powder storage barrel 1, which is helpful for the stable use of the powder storage barrel 1 and the various components assembled on the powder storage barrel 1.

[0037] The upper end of the powder inlet tube 5 is installed between external equipment for supplying powder, and the external equipment for supplying powder can transport the powder to the powder storage barrel 1 through the powder inlet tube 5 and the first through hole 6 on the baffle plate 11. The lower end of the second connecting tube 14 is further installed between the corresponding position on the external laser additive printing equipment. When the amount of powder transported is to be adjusted according to the required amount of powder, the hydraulic cylinder 12 on the fixed block 8 is opened, and the fixed block 8 can fix and limit the hydraulic cylinder 12, which is helpful for the stable use of the hydraulic cylinder 12. When the hydraulic cylinder 12 is opened, the output rod of the hydraulic cylinder 12 can drive the baffle 4 to move in the horizontal direction, and the baffle 4 will move along the retention groove 10 on the fixed block 8. When the baffle 4 moves, the size of the opening on the retention hole 9 in the fixed block 8 is adjusted.

[0038] When it is necessary to transport the powder, the powder transporting pump 15 is turned on. When the powder transporting pump 15 is turned on, the powder transporting pump 15 can extract the powder in the powder storage barrel 1 through the first connecting tube 13, the opening between the retaining hole 9 on the fixed block 8 and the baffle 4, and the second through hole 7 on the powder storage barrel 1. The powder extracted by the powder transporting pump 15 will be transported to the corresponding position on the external laser additive printing equipment through the second connecting tube 14 to facilitate laser additive printing processing. By adjusting the opening between the retaining hole 9 on the fixed block 8 and the baffle 4, it is helpful to adjust the amount of the transported powder.

[0039] During use, it helps to adjust the powder feeding amount according to the use requirements of external laser additive printing equipment, and can conveniently adjust the powder feeding amount of the powder feeding device to ensure the applicable scope of use of the powder feeding device, which helps to ensure the effect of laser additive printing processing by external laser additive printing equipment, so as to facilitate the use of the powder feeding device.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable powder feeding device for laser additive manufacturing, comprising a powder storage barrel (1), characterized in that: A fixing block (8) is fixed in the middle of the lower surface of the powder storage barrel (1), a retaining hole (9) penetrating the upper and lower surfaces of the middle of the fixing block (8) is provided in the middle of the fixing block (8), a second through hole (7) is provided in the middle of the lower end of the powder storage barrel (1) corresponding to the retaining hole (9), a baffle (4) is slidably mounted in the middle of the fixing block (8) along the horizontal direction, a first connecting tube (13) is fixed in the middle of the lower surface of the fixing block (8) outside the retaining hole (9), and a powder delivery pump (15) connected thereto is mounted at the lower end of the first connecting tube (13).

2. The adjustable powder feeding device for laser additive manufacturing according to claim 1, characterized in that: A matching retaining groove (10) is provided in the middle of the fixed block (8) corresponding to the baffle plate (4); the baffle plate (4) is located in the retaining groove (10) on the fixed block (8) and is slidably connected to the retaining groove (10) in a horizontal direction.

3. The adjustable powder feeding device for laser additive manufacturing according to claim 2, characterized in that: The fixed block (8) is in a horizontal state, the baffle (4) is in a horizontal state, a hydraulic cylinder (12) is installed in the middle of a surface of one end of the fixed block (8), and the hydraulic cylinder (12) is in a horizontal state.

4. The adjustable powder feeding device for laser additive manufacturing according to claim 3, characterized in that: The output rod of the hydraulic cylinder (12) faces the fixed block (8) and penetrates the inner surface and the outer surface of the corresponding position on the fixed block (8), and one end of the output rod of the hydraulic cylinder (12) close to the baffle (4) is fixedly connected to the corresponding position on the baffle (4).

5. The adjustable powder feeding device for laser additive manufacturing according to claim 4, characterized in that: The powder storage barrel (1) is in a vertical state, the second through hole (7) penetrates the inner surface and the outer surface of the powder storage barrel (1) at corresponding positions, and the top of the powder storage barrel (1) is in an open state and a matching shielding plate (11) is fixedly mounted thereon.

6. The adjustable powder feeding device for laser additive manufacturing according to claim 5, characterized in that: A powder feed barrel (5) is fixedly mounted in the middle of the upper surface of the shielding disk (11), and a matching first through hole (6) is opened in the middle of the shielding disk (11) corresponding to the inner ring surface of the powder feed barrel (5), and the first through hole (6) passes through the upper surface and the lower surface of the middle of the shielding disk (11).

7. The adjustable powder feeding device for laser additive manufacturing according to claim 6, characterized in that: A mounting frame (2) is fixedly mounted on the outer side of the lower end of the outer ring surface of the powder storage barrel (1); the mounting frame (2) is in a horizontal state; and bolts (3) are threadedly inserted in the four corners of the mounting frame (2) along the vertical direction.

8. The adjustable powder feeding device for laser additive manufacturing according to claim 7, characterized in that: A second connecting tube (14) is installed in communication with the interface on the lower side of the powder delivery pump (15), and the second connecting tube (14) is in a vertical state.

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