Powder feeding device of additive manufacturing equipment

Abstract

The utility model discloses a powder feeding device of additive manufacturing equipment, which comprises a feeding box body and a storage tank, the storage tank is positioned at the top end of the left side of the feeding box body and is communicated with the feeding box body, the right side of the feeding box body is communicated with a first feeding pipe, the other end of the first feeding pipe is communicated with a powder flow meter, and the powder flow meter is communicated with a second feeding pipe. A spiral blade is rotationally arranged between the inner walls of the left side and the right side of the feeding box body, a driving motor for driving the spiral blade is fixedly arranged on the outer wall of the left side of the feeding box body, and a motor controller electrically connected with the driving motor is arranged on the outer wall of the front side of the feeding box body. Compared with the prior art, the metal powder conveying device has the advantages that metal powder can be rapidly and evenly conveyed through the rotating motion of the spiral blades, and the printing efficiency is improved while the printing quality is improved; by controlling the rotating speed and direction of the spiral blade and matching with the powder flow meter, accurate conveying of the metal powder can be achieved, and waste of the metal powder is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing equipment, and in particular refers to a powder feeding device for additive manufacturing equipment. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses 3D model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and later gradually used for the direct manufacturing of some products. There are already parts printed using this technology.

[0003] In additive manufacturing equipment, the powder feeding device is a key component for conveying metal powder to the print head. The conveying quality of metal powder directly affects the powder spreading effect and printing quality during the printing process. Traditional powder feeding devices mainly rely on manual powder addition or mechanical vibration to feed powder, which has problems such as uneven powder feeding, low efficiency, and waste of metal powder. Therefore, a powder feeding device for additive manufacturing equipment that is convenient and accurately controlled is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that mechanical vibration powder feeding has problems such as uneven powder feeding, low efficiency, waste of metal powder, etc., and a powder feeding device for additive manufacturing equipment with convenient and precise control is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a powder feeding device of an additive manufacturing equipment, comprising a feeding box and a storage tank, the storage tank is located at the top left side of the feeding box and is connected to the feeding box, the right side of the feeding box is connected to a first feeding pipe, the other end of the first feeding pipe is connected to a powder flowmeter, the outer wall of the first feeding pipe is provided with a first thread groove, both ends of the powder flowmeter are provided with threaded sleeves matching the first thread groove, the inner cavity of the feeding box is a cylindrical structure, and a spiral blade close to the first feeding pipe is rotatably provided between the inner walls on the left and right sides of the feeding box, a driving motor for driving the spiral blade is fixedly provided on the left outer wall of the feeding box, a motor controller electrically connected to the driving motor is provided on the front outer wall of the feeding box, and a flow panel is fixedly provided on the powder flowmeter.

[0006] As an improvement, a feeding pipe is connected to the top of the storage tank, and a cover plate is hingedly provided on the top surface of the feeding pipe to facilitate the feeding of the metal powder in the storage tank. The setting of the cover plate prevents impurities from entering.

[0007] As an improvement, a conical feeding pipe is provided inside the storage tank, and the bottom end of the conical feeding pipe extends to the inside of the feeding box for communication. The setting of the conical feeding pipe allows the metal powder in the storage tank to be fully discharged.

[0008] As an improvement, a rotating motor is provided in the center of the top surface of the storage tank, and the output end of the rotating motor is connected to a rotating rod located in the conical feeding pipe. Stirring rods are evenly provided on the rotating rod to effectively avoid blockage of the conical feeding pipe.

[0009] As an improvement, the other end of the powder flow meter is connected to a second feeding pipe, which is a bent pipe structure. The other end of the second feeding pipe is connected to the print head. The outer wall of the second feeding pipe near one end of the powder flow meter is provided with a second threaded groove that cooperates with the threaded sleeve, which facilitates the connection of the second feeding pipe, thereby facilitating the connection operation between the device and the print head.

[0010] Compared with the prior art, the utility model has the following advantages: utilizing the rotational motion of the spiral blades, the metal powder can be quickly and evenly conveyed, thereby improving the printing quality and the printing efficiency;

[0011] By controlling the speed and direction of the spiral blades and cooperating with the powder flow meter, accurate conveying of metal powder can be achieved and the waste of metal powder can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a first stereoscopic view of a powder feeding device of an additive manufacturing device of the utility model.

[0013] Figure 2 This is a second stereoscopic view of a powder feeding device of an additive manufacturing device of the utility model.

[0014] Figure 3 It is a cross-sectional stereoscopic view of a powder feeding device of an additive manufacturing device of the utility model.

[0015] Figure 4 It is a disassembled stereoscopic diagram of a powder feeding device of an additive manufacturing device of the utility model.

[0016] As shown in the figure: 1. Feeding box; 2. Storage tank; 3. First feeding pipe; 4. Powder flowmeter; 5. First thread groove; 6. Threaded sleeve; 7. Spiral blade; 8. Drive motor; 9. Motor controller; 10. Flow panel; 11. Feeding pipe; 12. Cover plate; 13. Conical feeding pipe; 14. Rotating motor; 15. Rotating rod; 16. Stirring rod; 17. Second feeding pipe; 18. Second thread groove. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Embodiment 1

[0019] Combined with Figure 1-3 As shown, a powder feeding device of an additive manufacturing device comprises a feeding box 1 and a storage tank 2, wherein the storage tank 2 is located at the top left side of the feeding box 1 and is connected to the feeding box 1, a feeding pipe 11 is connected to the top of the storage tank 2, a cover plate 12 is hingedly provided on the top surface of the feeding pipe 11, a conical feeding pipe 13 is provided inside the storage tank 2, the bottom end of the conical feeding pipe 13 extends to the inside of the feeding box 1 and is connected, a rotating motor 14 is provided at the center of the top surface of the storage tank 2, a rotating rod 15 located in the conical feeding pipe 13 is connected to the output end of the rotating motor 14, and stirring rods 16 are evenly provided on the rotating rod 15;

[0020] Through the above structure, the metal powder is first put into the storage tank 2 through the feeding pipe 11, and then the cover plate 12 is closed, and the metal powder in the storage tank 2 is introduced into the feeding box 1 through the conical feeding pipe 13. In the process of introducing the metal powder in the storage tank 2 into the feeding box 1, the rotating motor 14 drives the stirring rod 16 to rotate to avoid the conical feeding pipe 13 from being blocked;

[0021] Embodiment 2

[0022] Based on the first embodiment, combined with the attached Figure 4 As shown, the right side of the feeding box 1 is connected with a first feeding pipe 3, the other end of the first feeding pipe 3 is connected with a powder flowmeter 4, the outer wall of the first feeding pipe 3 is provided with a first thread groove 5, both ends of the powder flowmeter 4 are provided with a threaded sleeve 6 matched with the first thread groove 5, the other end of the powder flowmeter 4 is connected with a second feeding pipe 17, the second feeding pipe 17 is a curved pipe structure, the other end of the second feeding pipe 17 is connected to the print head, the outer wall of the second feeding pipe 17 near one end of the powder flowmeter 4 is provided with a second thread groove 18 matched with the threaded sleeve 6, the inner cavity of the feeding box 1 is a cylindrical structure, and a spiral blade 7 close to the first feeding pipe 3 is rotatably provided between the inner walls on the left and right sides of the feeding box 1, a driving motor 8 for driving the spiral blade 7 is fixedly provided on the left outer wall of the feeding box 1, a motor controller 9 electrically connected to the driving motor 8 is provided on the front outer wall of the feeding box 1, and a flow panel 10 is fixedly provided on the powder flowmeter 4;

[0023] Through the above structure, before use, first connect the threaded sleeve 6 on the left side of the powder flowmeter 4 to the first feeding tube 3 through the first thread groove 5, and then connect the second feeding tube 17 to the powder flowmeter 4 through the second thread groove 18. The other end of the second feeding tube 17 is connected to the print head. Then, the drive motor 8 is turned on by the motor controller 9. The threaded blades rotate to continuously deliver the metal powder to the powder flowmeter 4. The powder flowmeter 4 monitors the amount of powder delivered, so as to cooperate with the motor controller 9 to control the precise delivery of the metal powder to avoid waste. The metal powder is finally delivered to the print head through the second feeding tube 17 for 3D printing.

[0024] When the utility model is implemented, before use, the threaded sleeve 6 on the left side of the powder flow meter 4 is first connected to the first feeding pipe 3 through the first thread groove 5, and then the second feeding pipe 17 is connected to the powder flow meter 4 through the second thread groove 18, and the other end of the second feeding pipe 17 is connected to the print head, and the feeding box 1 is fixed at a certain position;

[0025] When in use, the metal powder is put into the storage tank 2 through the feeding pipe 11, and then the cover 12 is closed. The metal powder in the storage tank 2 is introduced into the feeding box 1 through the conical feeding pipe 13. In the process of introducing the metal powder in the storage tank 2 into the feeding box 1, the rotating motor 14 drives the stirring rod 16 to rotate to avoid the conical feeding pipe 13 from being blocked. The drive motor 8 is turned on by the motor controller 9, and the threaded blades rotate to continuously transport the metal powder to the powder flowmeter 4. The powder flowmeter 4 monitors the amount of powder transported, and the monitoring results are displayed through the flow panel 10, so as to cooperate with the motor controller 9 to control the precise transportation of the metal powder to avoid waste. The metal powder is finally transported to the print head through the second feeding pipe 17 for 3D printing.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A powder feeding device for additive manufacturing equipment, comprising a feeding box (1) and a storage tank (2), wherein the storage tank (2) is located at the top left side of the feeding box (1) and is connected to the feeding box (1), and a first feeding pipe (3) is provided on the right side of the feeding box (1), characterized in that: The other end of the first feeding pipe (3) is connected to a powder flow meter (4), the outer wall of the first feeding pipe (3) is provided with a first thread groove (5), both ends of the powder flow meter (4) are provided with threaded sleeves (6) matched with the first thread groove (5), the inner cavity of the feeding box (1) is a cylindrical structure, a spiral blade (7) close to the first feeding pipe (3) is rotatably provided between the left and right inner walls of the feeding box (1), a driving motor (8) for driving the spiral blade (7) is fixedly provided on the left outer wall of the feeding box (1), a motor controller (9) electrically connected to the driving motor (8) is provided on the front outer wall of the feeding box (1), and a flow panel (10) is fixedly provided on the powder flow meter (4).

2. The powder feeding device of the additive manufacturing equipment according to claim 1, characterized in that: The top end of the material storage tank (2) is connected to a feeding pipe (11), and a cover plate (12) is hingedly provided on the top surface of the feeding pipe (11).

3. The powder feeding device of the additive manufacturing equipment according to claim 1, characterized in that: A conical feeding pipe (13) is provided inside the storage tank (2), and the bottom end of the conical feeding pipe (13) extends to the inside of the feeding box (1) for communication.

4. The powder feeding device of the additive manufacturing equipment according to claim 3, characterized in that: A rotating motor (14) is provided at the center of the top surface of the storage tank (2); an output end of the rotating motor (14) is connected to a rotating rod (15) located in the conical feeding pipe (13); stirring rods (16) are evenly provided on the rotating rod (15).

5. The powder feeding device of the additive manufacturing equipment according to claim 1, characterized in that: The other end of the powder flow meter (4) is connected to a second feeding pipe (17), the second feeding pipe (17) is a bent pipe structure, the other end of the second feeding pipe (17) is connected to the print head, and the outer wall of the second feeding pipe (17) close to one end of the powder flow meter (4) is provided with a second thread groove (18) that cooperates with the threaded sleeve (6).

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