Rapid cleaning device for 3D printing metal powder

Abstract

The utility model discloses a 3D printing metal powder rapid cleaning device which comprises a printing base, a collecting opening is formed in the printing base, a baffle matched with the collecting opening in shape is arranged on the inner side of the collecting opening, an electric push rod is fixedly installed at the bottom of the printing base, an air rod is fixedly installed at the top of the electric push rod, and the air rod is fixedly installed on the printing base. The top of the air rod is fixedly connected with the baffle, air outlets which are evenly distributed are formed in the air rod, a collecting cover located below the printing base is installed on the air rod, an air pump is fixedly installed at the bottom of the printing base, and a ventilation pipe is fixedly installed at the air outlet end of the air pump. The other end of the ventilation pipe penetrates through the collecting cover and is fixedly connected with the air rod, and the ventilation pipe communicates with the interior of the air rod. According to the hollow tubular printing material collecting device, residual metal powder attached to the interior of a hollow tubular printing material can be conveniently collected, the collecting difficulty of the metal powder in the hollow tubular printing material is reduced, and then the printing quality of the hollow tubular printing material is improved.

Description

Technical Field

[0001] The utility model relates to the field of 3D printing, and more specifically, to a device for quickly cleaning 3D printing metal powder. Background Art

[0002] 3D printing, also known as additive manufacturing, is a technology for creating three-dimensional objects by stacking materials layer by layer. This technology can be used for a variety of materials, including plastics, resins, ceramics, and metals. When it comes to metal 3D printing, during the metal 3D printing process, metal powder is used as the building material. After printing is completed, some unused metal powder will adhere to the printed object, and these powders need to be removed after printing to ensure the surface quality and accuracy of the final product.

[0003] When it comes to tubular hollow printed objects, the current metal powder collection device can only clean and collect the metal powder on its outer surface. Limited by the printing mechanism at the top of the printed object, it is not convenient to clean and collect the residual metal powder inside the printed object, and it can only be cleaned and collected again after printing is completed. The collection efficiency is low and it is easy to affect the forming quality of the printed object. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a device for quickly cleaning 3D printing metal powder.

[0005] To solve the above problems, the utility model adopts the following technical solutions;

[0006] A device for quickly cleaning 3D printing metal powder includes a printing base. A collection port is opened on the printing base. A baffle matching the shape of the collection port is arranged inside the collection port. An electric push rod is fixedly installed at the bottom of the printing base. A gas rod is fixedly installed at the top of the electric push rod. The top of the gas rod is fixedly connected to the baffle. Uniformly distributed air outlets are opened on the gas rod. A collection hood located below the printing base is installed on the gas rod. A gas pump is fixedly installed at the bottom of the printing base. The air outlet end of the gas pump is fixedly installed with a ventilation pipe. The other end of the ventilation pipe penetrates through the collection hood and is fixedly connected to the gas rod, and the ventilation pipe is communicated with the inside of the gas rod.

[0007] As a further description of the above technical solution:

[0008] The gas rod is in the shape of an inverted frustum of a cone. The air outlet direction of the air outlet is obliquely downward. The diameter of the top of the gas rod is smaller than the diameter of the baffle.

[0009] As a further description of the above technical solution:

[0010] A guiding groove is opened at the bottom of the baffle, and the edge of the guiding groove is set with an arc transition.

[0011] As a further description of the above technical solution:

[0012] The collection hood is composed of a semi-circular frame and a filter cloth, and the filter cloth is fixed on the semi-circular frame.

[0013] As a further description of the above technical solution:

[0014] A spring is fixedly installed on the air rod, the top of the spring is fixedly connected to the semi-circular frame, and the semi-circular frame is slidably installed on the air rod.

[0015] As a further description of the above technical solution:

[0016] A sealing ring is fixedly installed inside the semi-circular frame, and the sealing ring is sleeved on the air rod and contacts the air rod.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] This solution facilitates the collection of residual metal powder adhering to the inside of the hollow tubular printed object, reduces the difficulty of collecting metal powder inside the hollow tubular printed object, and thereby improves the printing quality of the hollow tubular printed object. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic front sectional view structure diagram of the present utility model;

[0021] Figure 3 is the present utility model Figure 2 an enlarged schematic structural diagram of part A in.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. Printing base; 2. Collection port; 3. Baffle; 31. Guide groove; 4. Electric push rod; 5. Air rod; 6. Air outlet; 7. Collection hood; 71. Semi-circular frame; 72. Filter cloth; 73. Sealing ring; 8. Air pump; 9. Vent pipe; 10. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model;

[0025] Please refer to Figure 1-3, in the present utility model, a rapid cleaning device for 3D printing metal powder includes a printing base 1. A collection port 2 is provided on the printing base 1. Inside the collection port 2, a baffle 3 matching the shape of the collection port 2 is arranged. An electric push rod 4 is fixedly installed at the bottom of the printing base 1. The top of the electric push rod 4 is fixedly installed with an air rod 5. The top of the air rod 5 is fixedly connected to the baffle 3. Uniformly distributed air outlets 6 are provided on the air rod 5. A collection hood 7 located below the printing base 1 is installed on the air rod 5. An air pump 8 is fixedly installed at the bottom of the printing base 1. The air outlet end of the air pump 8 is fixedly installed with an air pipe 9. The other end of the air pipe 9 penetrates through the collection hood 7 and is fixedly connected to the air rod 5, and the air pipe 9 is communicated with the inside of the air rod 5.

[0026] In the present utility model, when performing 3D printing on a hollow tubular printed object, the printed object is formed on the printing base 1. After the printed object is formed to a certain height or completely formed, the electric push rod 4 drives the air rod 5 and the baffle 3 thereon to rise into the hollow interior of the printed object until it reaches below the unformed part of the printed object. Then the air pump 8 operates, fills the inside of the air rod 5 with air through the air pipe 9, and then blows out through the air outlets 6, thereby blowing the residual metal powder on the inner wall of the printed object. Due to the restriction and guidance of the baffle 3, the air flow is directed downward and enters the inside of the collection hood 7 through the collection port 2. The air mixed with metal powder is discharged after being filtered by the collection hood 7, achieving the purpose of collecting metal powder, and being able to collect the residual metal powder attached to the inner wall of the hollow tubular printed object, reducing the difficulty of cleaning and collecting the metal powder on the inner wall of the printed object.

[0027] Please refer to Figure 1 and Figure 2 , wherein: the air rod 5 is in the shape of an inverted frustum of a cone, the air outlet direction of the air outlet 6 is obliquely downward, and the diameter of the top of the air rod 5 is smaller than the diameter of the baffle 3.

[0028] In the present utility model, after the inverted frustum-shaped air rod 5 rises, the gap between it and the collection port 2 can be gradually increased, facilitating the passage of the air flow for collecting metal powder, ensuring that there is a gap for the air flow to pass through conveniently after the air rod 5 pushes out the baffle 3.

[0029] Please refer to Figure 2 , wherein: a guiding groove 31 is provided at the bottom of the baffle 3, and the edge of the guiding groove 31 is set to have an arc transition.

[0030] In the present utility model, through the guiding groove 31, part of the upward air flow can be guided and redirected, allowing the air flow to flow downward again, reducing the air circulation amount at the top of the printed object and reducing the impact on the printer.

[0031] Please refer to Figure 2 , wherein: the collection hood 7 is composed of a semi-circular frame 71 and a filter cloth 72, and the filter cloth 72 is fixed on the semi-circular frame 71.

[0032] In the present utility model, the shape of the filter cloth 72 is supported by the semi-circular frame 71, and the filter cloth 72 can collect metal powder while facilitating the passage of air flow.

[0033] Please refer to Figure 2 and Figure 3 , wherein: a spring 10 is fixedly installed on the air rod 5, the top of the spring 10 is fixedly connected to the semi-circular frame 71, and the semi-circular frame 71 is slidably installed on the air rod 5.

[0034] In the present utility model, the spring 10 can apply an upward elastic force to the semi-circular frame 71 to keep the top of the semi-circular frame 71 in constant contact with the bottom of the printing base 1, preventing the air flow mixed with metal powder from flowing out without being filtered by the filter cloth 72.

[0035] Please refer to Figure 2 and Figure 3 , wherein: a sealing ring 73 is fixedly installed inside the semi-circular frame 71, and the sealing ring 73 is sleeved on the air rod 5 and contacts the air rod 5.

[0036] In the present utility model, the sliding gap between the semi-circular frame 71 and the air rod 5 is sealed by the sealing ring 73 to improve the sealing effect and ensure that the air flow flows out after being filtered by the filter cloth 72.

[0037] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present utility model.

Claims

1. A 3D printing metal powder quick cleaning device, comprising a printing base (1), characterized in that: The printing base (1) is provided with a collecting port (2), the inner side of the collecting port (2) is provided with a baffle (3) matching the shape of the collecting port (2), the bottom of the printing base (1) is fixedly mounted with an electric push rod (4), the top of the electric push rod (4) is fixedly mounted with an air rod (5), the top of the air rod (5) is fixedly connected to the baffle (3), the air rod (5) is provided with evenly distributed air outlets (6), the air rod (5) is provided with a collecting cover (7) located below the printing base (1), the bottom of the printing base (1) is fixedly mounted with an air pump (8), the air outlet end of the air pump (8) is fixedly mounted with a ventilation pipe (9), the other end of the ventilation pipe (9) passes through the collecting cover (7) and is fixedly connected to the air rod (5), and the ventilation pipe (9) is connected to the inside of the air rod (5).

2. A 3D printing metal powder rapid cleaning device according to claim 1, characterized in that: The gas rod (5) is in the shape of an inverted truncated cone, the gas outlet direction of the gas outlet (6) is obliquely downward, and the top diameter of the gas rod (5) is smaller than the diameter of the baffle (3).

3. A 3D printing metal powder rapid cleaning device according to claim 1, characterized in that: A guide groove (31) is provided at the bottom of the baffle (3), and the edge of the guide groove (31) is arranged to be an arc transition.

4. A 3D printing metal powder quick cleaning device according to claim 1, characterized in that: The collecting cover (7) is composed of a semicircular frame (71) and a filter cloth (72), and the filter cloth (72) is fixed on the semicircular frame (71).

5. A 3D printing metal powder rapid cleaning device according to claim 4, characterized in that: A spring (10) is fixedly mounted on the gas rod (5), the top of the spring (10) is fixedly connected to a semicircular frame (71), and the semicircular frame (71) is slidably mounted on the gas rod (5).

6. A 3D printing metal powder quick cleaning device according to claim 4, characterized in that: A sealing ring (73) is fixedly mounted on the inner side of the semicircular frame (71), and the sealing ring (73) is sleeved on the gas rod (5) and in contact with the gas rod (5).

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