3D printing powder feeding device

Abstract

The utility model discloses a 3D printing powder feeding device, and relates to the technical field of 3D printers, the 3D printing powder feeding device comprises a hollow tank body and a mounting and placing sleeve rod, the hollow tank body is mounted and connected on the inner side of the front end of the mounting and placing sleeve rod, and a scattering and feeding top cover mechanism is arranged on the inner side of the upper end of the hollow tank body; the scattering and feeding top cover mechanism is fixedly connected with the hollow tank body through a locking bolt, a bottom filtering conical hopper is arranged at the lower end of the hollow tank body, a powder grinding mechanism is arranged at the lower end of the bottom filtering conical hopper, and an electromagnetic discharge valve is arranged at the lower end of the powder grinding mechanism; and the scattering and feeding top cover mechanism, the powder grinding mechanism and the electromagnetic discharge valve are electrically connected with an external controller. The scattering and feeding top cover mechanism rotates in the hollow tank body, so that caked powder is scattered, and blockage caused by conveying is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, in particular to a 3D printing powder feeding device. Background Art

[0002] 3D printing is a technology that uses 3D printing equipment to add materials layer by layer to create three-dimensional products based on the designed 3D model. 3D printers that use metal and other powders as materials need to transport the powder into the nozzle and into the powder material chamber, so a 3D printing powder feeding device is needed.

[0003] The existing Chinese patent CN109128173A, on January 4, 2019, disclosed a bidirectional powder feeding device for 3D printing, including a fixed plate, an electric slide rail is provided at the bottom of the fixed plate, and electric sliders are provided on both sides of the electric slide rail, and powder discharge nozzles are provided at the bottom of the electric sliders, a box body is provided at the middle position of the top of the fixed plate, and a hopper is provided at the top of the box body, a heater is provided on one side of the box body, and a control panel is provided on the other side of the box body.

[0004] However, when the above device is delivering powder, the delivered powder is prone to agglomeration, and there is a lack of a powder breaking structure, which easily causes a blockage problem during transportation. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a 3D printing powder feeding device, in which a feeding top cover mechanism is rotated in a hollow tank body to break up agglomerated powder and avoid blockage caused by conveying.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A 3D printing powder feeding device comprises a hollow tank body and an installation and placement sleeve rod, wherein the hollow tank body is installed and connected to the inner side of the front end of the installation and placement sleeve rod, a scattering feed cover mechanism is arranged on the inner side of the upper end of the hollow tank body, the scattering feed cover mechanism and the hollow tank body are fixedly connected by locking bolts, a bottom filter cone hopper is arranged at the lower end of the hollow tank body, a powder grinding mechanism is arranged at the lower end of the bottom filter cone hopper, an electromagnetic discharge valve is arranged at the lower end of the powder grinding mechanism, and the scattering feed cover mechanism, the powder grinding mechanism and the electromagnetic discharge valve are electrically connected to an external controller.

[0008] Through the above technical scheme: the hollow tank body is installed and placed on the side of the sleeve rod, so that it can be installed and fixed in the designated position, and the personnel add the powder into the hollow tank body through the scattering feed cover mechanism, and then the scattering feed cover mechanism is rotated in the hollow tank body, so as to break up the agglomerated powder, so that the powder is filtered through the bottom filter cone bucket and discharged into the powder grinding mechanism during rotation, and then the powder grinding mechanism can effectively grind larger particles of powder, and the ground powder is discharged to the designated external position through the electromagnetic discharge valve, thereby completing the powder delivery.

[0009] The utility model is further configured as follows: the powder grinding mechanism includes a second coupling, a rotating motor, a grinding gap cavity, a feed through hole, a grinding roller body, a discharge through hole and a hollow shell, a feed through hole is arranged on the inner side of the upper end of the hollow shell, a discharge through hole is arranged on the inner side of the lower end of the hollow shell, a grinding roller body is arranged inside the hollow shell, a grinding gap cavity is arranged between the grinding roller body and the hollow shell, a second coupling is arranged at the right end of the grinding roller body, a rotating motor is arranged on the right end of the second coupling located on the hollow shell, and the hollow shell is connected to the bottom filter cone bucket.

[0010] Through the above technical solution: due to the structure of the powder grinding mechanism, it is easy to grind the powder, so that the powder is finer and convenient for laser printing in the later stage.

[0011] The utility model is further configured such that the mounting and placing sleeve rod comprises a fixing bolt, a fixing ring, a mounting sleeve cavity and a mounting arm rod, the fixing ring is provided with a mounting sleeve cavity inside, the inner side of the mounting sleeve cavity is provided with a fixing bolt on the fixing ring, the outer end of the fixing ring is provided with a mounting arm rod, and the fixing ring is connected to the hollow tank body by a fixing bolt.

[0012] Through the above technical solution: due to the installation and placement of the sleeve rod structure, it is easy to install, place and use.

[0013] The utility model is further configured such that the bottom filter cone comprises a filter mesh plate, a mounting screw, a bottom cone shell and a connecting ring; the lower end of the connecting ring is provided with a bottom cone shell, the upper end of the connecting ring is provided with a mounting screw, the inner side of the upper end of the mounting screw is provided with a filter mesh plate, and the mounting screw is connected to the hollow tank body.

[0014] Through the above technical solution: due to the bottom filtering cone bucket structure, it is easy to install and place, and it is convenient to filter powder for use.

[0015] The utility model is further configured as follows: the dispersing feed top cover mechanism includes a dispersing motor, a lifting handle, a feed tube cover, a stirring main rod, a first coupling and a U-shaped rod; a dispersing motor is arranged in the middle of the inner side of the feed tube cover, a lifting handle is arranged on the outer side of the dispersing motor located on the feed tube cover, a first coupling is arranged at the lower end of the dispersing motor, a stirring main rod is arranged at the lower end of the first coupling, a U-shaped rod is arranged at the lower end of the stirring main rod, and the feed tube cover is connected to the hollow tank body.

[0016] Through the above technical solution: due to the structure of the feeding top cover mechanism, it is convenient to add powder and convenient to rotate and scatter for use.

[0017] The utility model is further configured that the hollow tank body comprises an assembling spiral cavity and a tank body shell, the inner side of the lower end of the tank body shell is provided with an assembling spiral cavity, and the tank body shell is connected to the bottom filter cone bucket through the assembling spiral cavity.

[0018] Through the above technical solution: due to the hollow tank structure, it is easy to install, place and use.

[0019] The utility model is further configured that the hollow tank body and the bottom filter cone bucket are rotatably connected via threads.

[0020] Through the above technical solution: because the hollow tank body and the bottom filter cone bucket are connected by thread rotation, it is easy to install and disassemble.

[0021] The utility model is further configured that, because the bottom filter cone bucket and the powder grinding mechanism are connected by welding, the insides of the bottom filter cone bucket and the powder grinding mechanism are connected.

[0022] Through the above technical solution: because the bottom filter cone bucket and the powder grinding mechanism are connected by welding, and the insides of the bottom filter cone bucket and the powder grinding mechanism are connected, it is easy to install and fix them, and it is also easy to transport and use.

[0023] The beneficial effects of the utility model are:

[0024] 1. The dispersing feed cover mechanism is provided to facilitate the use of rotating dispersing. The dispersing feed cover mechanism with a feed pipe cover is sleeved and connected to the hollow tank body, and then the feed pipe cover can be locked and fixed by a locking bolt. The feed pipe cover has a lifting handle at the upper end, so that people can hold and lift it easily. When the output shaft of the dispersing motor rotates, the dispersing motor can drive the first coupling to rotate, and the first coupling can drive the stirring main rod to rotate, and the stirring main rod can drive the U-shaped rod to rotate in the hollow tank body, so that the powder in the hollow tank body is effectively dispersed, making it more convenient to filter.

[0025] 2. A powder grinding mechanism is provided so that it can be used for rotating grinding. The hollow shell of the powder grinding mechanism is welded and connected to the bottom filter cone bucket, so that the hollow shell is easy to install and place. The hollow shell can receive the powder discharged by the bottom filter cone bucket due to the feed through hole, and then the powder falls into the grinding gap cavity. When the output shaft of the rotating motor rotates, the rotating motor can drive the second coupling to rotate, and the second coupling drives the grinding roller body to rotate in the hollow shell. The grinding roller body can rotate and grind the powder in the grinding gap cavity to make the powder finer, which is convenient for the subsequent laser printing and forming. The ground powder can be discharged into the electromagnetic discharge valve through the discharge through hole, and then can be discharged to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural schematic diagram of a 3D printing powder feeding device proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the powder grinding mechanism structure of a 3D printing powder feeding device proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the installation and placement sleeve rod structure of a 3D printing powder feeding device proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the bottom filter cone structure of a 3D printing powder feeding device proposed by the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of a scattering feed cover mechanism of a 3D printing powder feeding device proposed by the utility model;

[0031] Figure 6 This is a schematic diagram of the hollow tank structure of a 3D printing powder feeding device proposed by the utility model.

[0032] In the figure: 1. Breaking up the feed cover mechanism; 11. Breaking up the motor; 12. Lifting handle; 13. Cover with feed pipe; 14. Main stirring rod; 15. First coupling; 16. U-shaped rod; 2. Hollow tank body; 21. Assembling screw cavity; 22. Tank shell; 3. Installing and placing sleeve rod; 31. Fixing bolt; 32. Fixing collar; 33. Installing sleeve cavity; 34. Installing arm rod; 4. Locking bolt; 5. Bottom filter cone bucket; 51. Filter screen plate; 52. Installing screw tube; 53. Bottom cone shell; 54. Connecting collar; 6. Powder grinding mechanism; 61. Second coupling; 62. Rotating motor; 63. Grinding gap cavity; 64. Feed through hole; 65. Grinding roller body; 66. Discharge through hole; 67. Hollow shell; 7. Solenoid discharge valve. DETAILED DESCRIPTION

[0033] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0036] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0037] Reference Figure 1-Figure 6 A 3D printing powder feeding device comprises a hollow tank body 2 and a mounting sleeve rod 3, the hollow tank body 2 is mounted and connected to the inner side of the front end of the mounting sleeve rod 3, a scattering feed cover mechanism 1 is arranged on the inner side of the upper end of the hollow tank body 2, the scattering feed cover mechanism 1 and the hollow tank body 2 are fixedly connected by a locking bolt 4, a bottom filter cone 5 is arranged at the lower end of the hollow tank body 2, a powder grinding mechanism 6 is arranged at the lower end of the bottom filter cone 5, an electromagnetic discharge valve 7 is arranged at the lower end of the powder grinding mechanism 6, the scattering feed cover mechanism 1, the powder grinding mechanism 6 and the electromagnetic discharge valve 7 are connected to an external control The controller is electrically connected. When in use, the hollow tank body 2 is installed and placed on the side of the sleeve rod 3, so that it can be installed and fixed in the specified position. The personnel add the powder into the hollow tank body 2 through the dispersing feed cover mechanism 1, and then the dispersing feed cover mechanism 1 is rotated in the hollow tank body 2, so as to disperse the agglomerated powder, so that the powder is filtered through the bottom filter cone 5 and discharged into the powder grinding mechanism 6 during rotation. After that, the powder grinding mechanism 6 can effectively grind larger particles of powder, and the ground powder is discharged to the external specified position through the electromagnetic discharge valve 7, thereby completing the powder feeding.

[0038] Specifically, the powder grinding mechanism 6 includes a second coupling 61, a rotating motor 62, a grinding gap cavity 63, a feed through hole 64, a grinding roller body 65, a discharge through hole 66 and a hollow shell 67. The upper inner side of the hollow shell 67 is provided with a feed through hole 64, the lower inner side of the hollow shell 67 is provided with a discharge through hole 66, the inside of the hollow shell 67 is provided with a grinding roller body 65, a grinding gap cavity 63 is provided between the grinding roller body 65 and the hollow shell 67, the right end of the grinding roller body 65 is provided with a second coupling 61, the right end of the second coupling 61 is located on the hollow shell 67 and is provided with a rotating motor 62, the hollow shell 67 is connected to the bottom filter cone 5, and the hollow shell of the powder grinding mechanism 6 The body 67 is welded and connected to the bottom filter cone 5, so that the hollow shell 67 is easy to install and place. The hollow shell 67 can receive the powder filtered and discharged by the bottom filter cone 5 due to the feed through hole 64, and then the powder falls into the grinding gap cavity 63. When the output shaft of the rotating motor 62 rotates, the rotating motor 62 can drive the second coupling 61 to rotate, and the second coupling 61 drives the grinding roller body 65 to rotate in the hollow shell 67. The grinding roller body 65 can rotate to grind the powder in the grinding gap cavity 63, making the powder finer, which is convenient for the subsequent laser printing and forming. The ground powder can be discharged into the electromagnetic discharge valve 7 through the discharge through hole 66, and then can be discharged to the outside.

[0039] Specifically, the installation and placement sleeve rod 3 includes a fixing bolt 31, a fixing ring 32, an installation sleeve cavity 33 and an installation arm 34. The interior of the fixing ring 32 is provided with an installation sleeve cavity 33. The inner side of the installation sleeve cavity 33 is located on the fixing ring 32 and is provided with a fixing bolt 31. The outer end of the fixing ring 32 is provided with a mounting arm 34. The fixing ring 32 is connected to the hollow tank body 2 through the fixing bolt 31. The fixing ring 32 of the installation and placement sleeve rod 3 passes through the area of ​​the installation sleeve cavity 33, so that it can be sleeved on the outer side of the hollow tank body 2, and then it can be fixedly connected to the hollow tank body 2 through the fixing bolt 31. The fixing ring 32 is easy to install and fix at the specified position due to the mounting arm 34 at the outer end.

[0040] Specifically, the bottom filter cone 5 includes a filter screen plate 51, a mounting screw tube 52, a bottom cone shell 53 and a connecting collar 54. The bottom cone shell 53 is provided at the lower end of the connecting collar 54, and the mounting screw tube 52 is provided at the upper end of the connecting collar 54. The filter screen plate 51 is provided on the inner side of the upper end of the mounting screw tube 52. The mounting screw tube 52 is connected to the hollow tank body 2. The mounting screw tube 52 of the bottom filter cone 5 is threadedly connected to the hollow tank body 2, so that the mounting screw tube 52 is easy to install and place. The mounting screw tube 52 can filter the powder in the hollow tank body 2 due to the filter screen plate 51 on the inner side of the upper end, and the filtered powder can be collected and discharged through the connecting collar 54 and the bottom cone shell 53.

[0041] Specifically, the dispersing feed cover mechanism 1 includes a dispersing motor 11, a lifting handle 12, a feed pipe cover 13, a stirring main rod 14, a first coupling 15 and a U-shaped rod 16. The dispersing motor 11 is arranged in the middle of the inner side of the feed pipe cover 13, and the lifting handle 12 is arranged on the outer side of the dispersing motor 11 on the feed pipe cover 13. The first coupling 15 is arranged at the lower end of the dispersing motor 11, and the stirring main rod 14 is arranged at the lower end of the first coupling 15. The U-shaped rod 16 is arranged at the lower end of the stirring main rod 14. The feed pipe cover 13 is connected to the hollow tank body 2, and the dispersing feed cover The feed pipe cover 13 of the mechanism 1 is sleeved and connected to the hollow tank body 2, and then the feed pipe cover 13 can be locked and fixed by the locking bolt 4. The feed pipe cover 13 has a lifting handle 12 at the upper end, so that people can hold it and lift it easily. When the output shaft of the dispersing motor 11 rotates, the dispersing motor 11 can drive the first coupling 15 to rotate, and the first coupling 15 can drive the stirring main rod 14 to rotate, and the stirring main rod 14 can drive the U-shaped rod 16 to rotate in the hollow tank body 2, so that the powder in the hollow tank body 2 is effectively dispersed, making it more convenient to filter.

[0042] Specifically, the hollow tank body 2 includes an assembly spiral chamber 21 and a tank body shell 22. The assembly spiral chamber 21 is provided on the inner side of the lower end of the tank body shell 22. The tank body shell 22 is connected to the bottom filter cone 5 through the assembly spiral chamber 21. The tank body shell 22 of the hollow tank body 2 is threadably connected to the bottom filter cone 5 through the assembly spiral chamber 21, so that the tank body shell 22 is easy to install and place for use.

[0043] Specifically, the hollow tank body 2 and the bottom filter cone 5 are rotatably connected via threads, which is convenient for installation and disassembly.

[0044] Specifically, the bottom filter cone 5 and the powder grinding mechanism 6 are connected by welding, and the insides of the bottom filter cone 5 and the powder grinding mechanism 6 are connected, so that they are easy to install and fix, and are easy to transport and use.

[0045] Working principle: When in use, the hollow tank body 2 is installed and placed on the side of the sleeve rod 3, so that it can be installed and fixed in the specified position. The personnel add the powder into the hollow tank body 2 through the dispersing feed cover mechanism 1, and then the dispersing feed cover mechanism 1 is rotated in the hollow tank body 2, so as to disperse the agglomerated powder, so that the powder is filtered through the bottom filter cone 5 and discharged into the powder grinding mechanism 6 during rotation. After that, the powder grinding mechanism 6 can effectively grind larger particles of powder, and the ground powder is discharged to the external specified position through the electromagnetic discharge valve 7, thereby completing the powder delivery.

[0046] 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. A 3D printing powder feeding device, comprising a hollow tank body (2) and a mounting sleeve rod (3), characterized in that: The hollow tank body (2) is installed and connected to the inner side of the front end of the mounting sleeve rod (3); a scattering feed cover mechanism (1) is arranged on the inner side of the upper end of the hollow tank body (2); the scattering feed cover mechanism (1) and the hollow tank body (2) are fixedly connected by a locking bolt (4); a bottom filter cone (5) is arranged at the lower end of the hollow tank body (2); a powder grinding mechanism (6) is arranged at the lower end of the bottom filter cone (5); an electromagnetic discharge valve (7) is arranged at the lower end of the powder grinding mechanism (6); the scattering feed cover mechanism (1), the powder grinding mechanism (6) and the electromagnetic discharge valve (7) are electrically connected to an external controller.

2. A 3D printing powder feeding device according to claim 1, characterized in that: The powder grinding mechanism (6) comprises a second coupling (61), a rotating motor (62), a grinding gap cavity (63), a feed through hole (64), a grinding roller body (65), a discharge through hole (66) and a hollow shell (67). The inner side of the upper end of the hollow shell (67) is provided with a feed through hole (64), the inner side of the lower end of the hollow shell (67) is provided with a discharge through hole (66), the interior of the hollow shell (67) is provided with a grinding roller body (65), a grinding gap cavity (63) is provided between the grinding roller body (65) and the hollow shell (67), the right end of the grinding roller body (65) is provided with a second coupling (61), the right end of the second coupling (61) is located on the hollow shell (67) and is provided with a rotating motor (62), and the hollow shell (67) is connected to the bottom filter cone (5).

3. A 3D printing powder feeding device according to claim 1, characterized in that: The mounting sleeve rod (3) comprises a fixing bolt (31), a fixing collar (32), a mounting sleeve cavity (33) and a mounting arm rod (34); the fixing collar (32) is provided with a mounting sleeve cavity (33) inside; the fixing collar (32) is provided with a fixing bolt (31) on the inner side of the mounting sleeve cavity (33); the outer end of the fixing collar (32) is provided with a mounting arm rod (34); the fixing collar (32) is connected to the hollow tank body (2) via the fixing bolt (31).

4. A 3D printing powder feeding device according to claim 1, characterized in that: The bottom filter cone (5) comprises a filter screen plate (51), a mounting screw tube (52), a bottom cone shell (53) and a connecting collar (54); the bottom cone shell (53) is arranged at the lower end of the connecting collar (54); the mounting screw tube (52) is arranged at the upper end of the connecting collar (54); the filter screen plate (51) is arranged inside the upper end of the mounting screw tube (52); and the mounting screw tube (52) is connected to the hollow tank body (2).

5. A 3D printing powder feeding device according to claim 1, characterized in that: The dispersing feed cover mechanism (1) comprises a dispersing motor (11), a lifting handle (12), a feed pipe cover (13), a stirring main rod (14), a first coupling (15) and a U-shaped rod (16); the dispersing motor (11) is arranged in the middle of the inner side of the feed pipe cover (13); the lifting handle (12) is arranged on the outer side of the dispersing motor (11) and on the feed pipe cover (13); the first coupling (15) is arranged at the lower end of the dispersing motor (11); the stirring main rod (14) is arranged at the lower end of the first coupling (15); the U-shaped rod (16) is arranged at the lower end of the stirring main rod (14); and the feed pipe cover (13) is connected to the hollow tank body (2).

6. A 3D printing powder feeding device according to claim 1, characterized in that: The hollow tank body (2) comprises an assembly spiral chamber (21) and a tank body shell (22); the assembly spiral chamber (21) is arranged on the inner side of the lower end of the tank body shell (22); and the tank body shell (22) is connected to the bottom filter cone (5) via the assembly spiral chamber (21).

7. A 3D printing powder feeding device according to claim 1, characterized in that: The hollow tank body (2) and the bottom filter cone (5) are rotatably connected via threads.

8. A 3D printing powder feeding device according to claim 1, characterized in that: The bottom filter cone (5) and the powder grinding mechanism (6) are connected by welding, and the interiors of the bottom filter cone (5) and the powder grinding mechanism (6) are connected.

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