Feeding device for aluminum alloy 3D printer

Abstract

The feeding device for the aluminum alloy 3D printer comprises a feeding box, a material adding pipe and a feeding pipe, a top plate and a discharging pipe are installed at the top and the bottom of the feeding box respectively, the material adding pipe is fixedly connected to the interior of the top plate, a plurality of installation rods are evenly and fixedly connected to the interior of the feeding box, ultrasonic generators are installed at the bottoms of the installation rods, and the feeding pipe is fixedly connected to the top plate. Ultrasonic vibration rods are mounted at the bottoms of the ultrasonic generators; a pipe cover is screwed to the top of the feeding pipe, an exhaust hole is formed in the pipe cover, a sealing cover covers the exhaust hole, and a self-exhaust assembly used for automatically opening the sealing cover to exhaust redundant gas is arranged at the position, located above the sealing cover, of the top of the pipe cover. By means of the structure, the ultrasonic generator and the ultrasonic vibration rod are arranged to emit vibration energy into the materials, flowing of the aluminum alloy materials can be facilitated, bubbles in the materials rapidly rise to the surface, the bubbles mixed in the materials are effectively reduced, the breakage phenomenon caused by the bubbles in the 3D printing process is reduced, and the printing quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a feeding device for an aluminum alloy 3D printer. Background Technology

[0002] 3D printing is a technology that uses digital model files as a basis and employs powdered metals or plastics and other bondable materials to construct objects by printing layer by layer. Currently, aluminum alloys are widely used in aerospace, automobile manufacturing and other fields due to their excellent mechanical and processing properties.

[0003] In the prior art, a search revealed a Chinese patent disclosure entitled "A Feeding Device for a 3D Printer," application number "202221156689.3." This patent mainly includes a feeding box with a shell on its inner wall, a driving component within the shell, a rotating shaft at the driving end of the driving component, and an auger at the end of the rotating shaft. A feeding cylinder extends through the outer wall of the feeding box, and a feeding pipe is located on one side of the outer wall of the feeding cylinder. A control valve is located on the outer wall of the feeding pipe. The auger is located within the feeding cylinder. An air pump is located on one side of the outer wall of the feeding box, and the air pump's suction end is connected to the feeding box via an air suction pipe. The patent also includes a material feeding mechanism located on the outer wall of the feeding box for adding material and ensuring the airtightness of the feeding box during the feeding process. This invention ensures continuous feeding, preventing air bubbles in the material from causing feeding breakage, resulting in better performance. However, when air is extracted from the feed box using a vacuum pump and vacuum pipe, a large amount of dust may form after the printed material is added to the feed box due to the dispersion of the material and the dust-raising effect. If this dust is extracted with the vacuum pipe, the extracted air may contain a large number of material particles, which may not only pollute the vacuum system but also waste material. In addition, because the material at the bottom of the feed box is densely packed and compressed by the material above, it is difficult to effectively extract the gas at the bottom, resulting in poor gas discharge. Therefore, this utility model provides a feeding device for an aluminum alloy 3D printer to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for an aluminum alloy 3D printer. It is equipped with an ultrasonic generator and an ultrasonic vibrator to emit vibration energy into the material, which can help the aluminum alloy material flow, causing air bubbles in the material to rise rapidly to the surface and be discharged from the material. This effectively reduces the number of air bubbles in the material, reduces the breakage caused by air bubbles during the 3D printing process, and improves printing quality and efficiency.

[0005] To achieve the above objectives, a feeding device for an aluminum alloy 3D printer is provided, comprising a feeding box, a feeding tube, and a feeding pipe. A top plate and a feeding pipe are respectively installed on the top and bottom of the feeding box. The feeding pipe is fixedly connected to the inside of the top plate. Multiple mounting rods are evenly fixedly connected inside the feeding box. An ultrasonic generator is installed at the bottom of each mounting rod, and an ultrasonic vibrating rod is installed at the bottom of each ultrasonic generator.

[0006] The top of the feeding tube is screwed with a tube cap, and an exhaust hole is opened inside the tube cap. A sealing cap is closed above the exhaust hole. A self-venting component for automatically opening the sealing cap to release excess gas is provided on the top of the tube cap and above the sealing cap.

[0007] According to the feeding device for an aluminum alloy 3D printer, the self-venting assembly includes a mounting plate fixedly connected to the top of the tube cover, a slide rod slidably connected inside the mounting plate, a limiting plate slidably connected to the outside of the slide rod, a spring sleeved on the outside of the slide rod and located above the limiting plate, and a nut located at the bottom of the limiting plate. The bottom end of the slide rod is fixedly connected to the cover, and the outside of the slide rod and the side near the bottom is provided with an external thread. The nut is threadedly connected to the outside of the slide rod.

[0008] According to the feeding device for an aluminum alloy 3D printer, a screw conveyor is provided at the bottom end of the feeding pipe, and the feeding pipe is installed at the outlet of the screw conveyor.

[0009] According to the feeding device for an aluminum alloy 3D printer, a flow meter is provided on the feeding pipe.

[0010] According to the feeding device for an aluminum alloy 3D printer, the bottom end of an ultrasonic vibrating rod located above the feeding tube extends to a side close to the feeding tube.

[0011] According to the feeding device for an aluminum alloy 3D printer, the bottom of the feeding box is designed with a conical structure.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with the existing technology, the feeding device for the aluminum alloy 3D printer is equipped with an ultrasonic generator and an ultrasonic vibrating rod to emit vibration energy into the material, which can help the flow of aluminum alloy material, so that the air bubbles in the material can rise to the surface quickly and be discharged from the material, thereby effectively reducing the air bubbles in the material, reducing the breakage caused by air bubbles during the 3D printing process, and improving printing quality and efficiency.

[0014] 2. Compared with the existing technology, the feeding device for the aluminum alloy 3D printer is equipped with an exhaust port, a cover, and a self-venting component. The cover can be automatically opened to release excess gas, ensuring a smooth feeding process.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the first overall structure of a feeding device for an aluminum alloy 3D printer according to the present invention;

[0018] Figure 2 This is a schematic diagram of the second overall structure of a feeding device for an aluminum alloy 3D printer according to the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the internal structure of the feeding box of a feeding device for an aluminum alloy 3D printer according to this utility model.

[0020] Figure 4 This utility model relates to a feeding device for an aluminum alloy 3D printer. Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Legend:

[0022] 1. Feeding box; 2. Top plate; 3. Feeding pipe; 4. Pipe cover; 5. Sealing cover; 6. Mounting rod; 7. Ultrasonic generator; 8. Ultrasonic vibrator; 9. Discharge pipe; 10. Vent hole; 11. Mounting plate; 12. Limiting plate; 13. Nut; 14. Spring; 15. Screw conveyor; 16. Feeding pipe; 17. Flow meter; 18. Slide bar. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4This utility model discloses a feeding device for an aluminum alloy 3D printer, comprising a feeding box 1, a feeding pipe 3, and a feeding pipe 16. A flow meter 17 is installed on the feeding pipe 16 to monitor the flow rate of aluminum alloy powder in real time, achieving precise feeding. A top plate 2 and a discharge pipe 9 are respectively installed at the top and bottom of the feeding box 1. The feeding pipe 3 is fixedly connected inside the top plate 2. Multiple mounting rods 6 are evenly fixedly connected inside the feeding box 1. An ultrasonic generator 7 is installed at the bottom of each mounting rod 6, and an ultrasonic vibrating rod 8 is installed at the bottom of each ultrasonic generator 7.

[0025] Aluminum alloy material is fed into the feeding box 1. Ultrasonic generator 7 generates ultrasonic vibration and emits this vibration energy into the material through ultrasonic vibrating rod 8. This helps the aluminum alloy material flow, causing air bubbles in the material to rise rapidly to the surface and be expelled from the material. This effectively reduces the number of air bubbles trapped in the material, reduces breakage caused by air bubbles during 3D printing, and improves printing quality and efficiency.

[0026] A cap 4 is screwed onto the top of the feeding tube 3. An exhaust hole 10 is provided inside the cap 4. A cover 5 is closed above the exhaust hole 10. A self-venting assembly for automatically opening the cover 5 to release excess gas is provided on the top of the cap 4 and above the cover 5. The self-venting assembly includes a mounting plate 11 fixedly connected to the top of the cap 4, a slide rod 18 slidably connected inside the mounting plate 11, a limiting plate 12 slidably connected to the outside of the slide rod 18, a spring 14 sleeved on the outside of the slide rod 18 and located above the limiting plate 12, and a nut 13 located at the bottom of the limiting plate 12. The bottom end of the slide rod 18 is fixedly connected to the cover 5. An external thread is provided on the outside of the slide rod 18 near the bottom. The nut 13 is threaded to the outside of the slide rod 18. Tightening the nut 13 can be used to adjust the rigidity of the spring 14, so as to adjust the pressure applied to the cover 5.

[0027] After aluminum alloy material is filled into the feeding box 1 through the feeding tube 3, the tube cap 4 is screwed onto the top of the feeding tube 3, thus completing the installation of the self-venting assembly. Under normal conditions, the spring 14 provides a downward pushing force to the cover 5, keeping it closed on the vent hole 10 and maintaining the feeding box 1 in a closed state. When the ultrasonic vibrator 8 inside the feeding box 1 is activated, and the gas pressure inside the feeding box 1 reaches a certain value, it pushes the cover 5 upward and separates it from the vent hole 10. The cover 5 automatically opens to release excess gas, ensuring a smooth feeding process.

[0028] The bottom of the feeding box 1 is designed with a conical structure, which can effectively concentrate the material and enhance the material flow. The bottom of the discharge pipe 9 is equipped with a screw conveyor 15, and the feeding pipe 16 is installed at the discharge port of the screw conveyor 15. The screw conveyor 15 is used to stably transport the aluminum alloy material in the feeding box 1 to the feeding pipe 16.

[0029] The ultrasonic vibrating rod 8, located above the feeding pipe 9, extends to the side close to the feeding pipe 9. The ultrasonic vibrating rod 8 is located at the feeding pipe 9 and can generate appropriate vibration to promote the uniform flow of aluminum alloy powder and prevent blockage.

[0030] Working principle: When aluminum alloy material is fed into the feeding box 1, the ultrasonic generator 7 generates ultrasonic vibration and emits this vibration energy into the material through the ultrasonic vibrating rod 8. This helps the aluminum alloy material flow, causing air bubbles in the material to rise rapidly to the surface and be discharged from the material. This effectively reduces the number of air bubbles in the material, reduces the breakage caused by air bubbles during 3D printing, and improves printing quality and efficiency.

[0031] After aluminum alloy material is filled into the feeding box 1 through the feeding tube 3, the tube cap 4 is screwed onto the top of the feeding tube 3, thus completing the installation of the self-venting assembly. Under normal conditions, the spring 14 provides a downward pushing force to the cover 5, keeping it closed on the vent hole 10 and maintaining the feeding box 1 in a closed state. When the ultrasonic vibrator 8 inside the feeding box 1 is activated, and the gas pressure inside the feeding box 1 reaches a certain value, it pushes the cover 5 upward and separates it from the vent hole 10. The cover 5 automatically opens to release excess gas, ensuring a smooth feeding process.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A feeding device for an aluminum alloy 3D printer, characterized in that, It includes a feeding box (1), a feeding pipe (3) and a feeding pipe (16). The top and bottom of the feeding box (1) are respectively equipped with a top plate (2) and a discharge pipe (9). The feeding pipe (3) is fixedly connected to the inside of the top plate (2). Multiple mounting rods (6) are evenly fixedly connected inside the feeding box (1). An ultrasonic generator (7) is installed at the bottom of each mounting rod (6). An ultrasonic vibrating rod (8) is installed at the bottom of each ultrasonic generator (7). The top of the feeding tube (3) is screwed with a tube cap (4), and an exhaust hole (10) is provided inside the tube cap (4). A cover (5) is closed above the exhaust hole (10). A self-venting assembly for automatically opening the cover (5) to release excess gas is provided on the top of the tube cap (4) and above the cover (5).

2. The feeding device for an aluminum alloy 3D printer according to claim 1, characterized in that, The self-exhausting assembly includes a mounting plate (11) fixedly connected to the top of the pipe cover (4), a slide rod (18) slidably connected inside the mounting plate (11), a limiting plate (12) slidably connected to the outside of the slide rod (18), a spring (14) sleeved on the outside of the slide rod (18) and located above the limiting plate (12), and a nut (13) located at the bottom of the limiting plate (12). The bottom end of the slide rod (18) is fixedly connected to the cover (5). The slide rod (18) has an external thread on the side near the bottom. The nut (13) is threadedly connected to the outside of the slide rod (18).

3. The feeding device for an aluminum alloy 3D printer according to claim 2, characterized in that, The bottom end of the feed pipe (9) is provided with a screw conveyor (15), and the feed pipe (16) is installed at the outlet of the screw conveyor (15).

4. A feeding device for an aluminum alloy 3D printer according to claim 3, characterized in that, A flow meter (17) is provided on the feed pipe (16).

5. A feeding device for an aluminum alloy 3D printer according to claim 4, characterized in that, The bottom end of the ultrasonic vibrating rod (8) located above the feed tube (9) extends to one side close to the feed tube (9).

6. The feeding device for an aluminum alloy 3D printer according to claim 1, characterized in that, The bottom of the feeding box (1) is designed with a conical structure.

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