Matrix cylinder for 3D printing and high-flux 3D printer

Abstract

The utility model relates to the technical field of metal 3D printers, in particular to a matrix cylinder for 3D printing and a high-throughput 3D printer. On the first aspect, the matrix cylinder for 3D printing comprises a cylinder body, a printing machine plate and a synchronous lifting assembly; a plurality of printing cavities are formed in the top face of the cylinder body in a penetrating mode, the multiple printer plates are correspondingly arranged in the printing cavities, the printer plates are matched with the printing cavities, and the multiple printer plates synchronously ascend and descend through a synchronous lifting assembly; the synchronous lifting assembly comprises a connecting plate, a plurality of guide rods and a plurality of connecting blocks, one ends of the guide rods are correspondingly connected with the connecting blocks, the other ends of the guide rods are all connected with the connecting plate, the connecting blocks are correspondingly located in the printing cavity, the printer plate is correspondingly connected to the upper portions of the connecting blocks, and the connecting plate is externally connected with a driving source to ascend and descend. On the second aspect, the utility model discloses a high-throughput 3D printer which comprises the matrix cylinder. The method has the effect of improving the printing efficiency and diversity.

Description

Technical Field

[0001] The present application relates to the technical field of metal 3D printers, and in particular to a matrix cylinder for 3D printing and a high-throughput 3D printer. Background Art

[0002] A 3D metal printer is a scientific instrument used in the fields of physics, basic engineering and technological sciences, and mechanical engineering. It uses laser melting technology to melt metal powder to form functional solid components. It can be used to print high-throughput metal materials and is a fully digital rapid prototyping manufacturing process. It produces high-density metal parts directly based on the interface data of the three-dimensional CAD layer, with the thickness of the melted metal layer ranging from 20 microns to 100 microns. In metal rapid prototyping, when a 3D printer manufactures parts, it is necessary to first lay the metal powder in the forming cylinder and use a scraper to evenly distribute the metal powder layer. Then, each metal layer is melted separately in a strictly controlled air environment to finally obtain a solid component. However, in related technologies, only one printing cavity is provided for the forming cylinder, and usually only solid components with a single attribute can be printed. That is, the printed solid components are made of the same material in each layer, and the printing efficiency and diversity need to be improved. Utility Model Content

[0003] In order to improve printing efficiency and diversity, the present application provides a matrix cylinder for 3D printing and a high-throughput 3D printer.

[0004] In the first aspect, the present application provides a matrix cylinder for 3D printing, which adopts the following technical solution:

[0005] A matrix cylinder for 3D printing, comprising a cylinder body, a printer plate, and a synchronous lifting assembly;

[0006] A plurality of printing cavities are provided on the top surface of the cylinder body. There are a plurality of printer plates which are correspondingly provided in the printing cavities. The printer plates are adapted to the printing cavities, and the plurality of printer plates are synchronously lifted and lowered by a synchronous lifting assembly.

[0007] By employing this technical solution, the top surface of the printer plate is initially flush with the top surface of the cylinder. During operation, the printer plate is lowered by a synchronized lifting assembly, followed by the placement of a first layer of metal powder within the print chamber, and then laser melting printing of that layer proceeds. By configuring multiple print chambers, different types of metal powder can be applied to different print chambers based on actual conditions. After each layer is printed, the printer plate is lowered a specified distance, and the desired type of metal powder is applied to the adjacent layer. This creates a component with diverse properties, while also improving printing efficiency.

[0008] Optionally, the synchronous lifting assembly includes a connecting plate, multiple guide rods and multiple connecting blocks, one end of the guide rod is connected to the connecting block, and the other end of the guide rod is connected to the connecting plate, the connecting block is located in the printing cavity, the printer plate is connected above the connecting block, and the connecting plate is connected to an external driving source for lifting.

[0009] By adopting this technical solution, all guide rods can be raised and lowered synchronously by raising and lowering the connecting plate through an external drive source, and then all printer plates can be raised and lowered synchronously through the connecting block. This has a simple structure and is easy to operate. The drive source can be selected according to actual conditions, and can include air cylinders, oil cylinders, etc.

[0010] Optionally, a dovetail block is fixedly connected to the top surface of the connecting block, and a mounting block is fixedly connected to the bottom surface of the printer plate. A dovetail groove for the dovetail block to be clamped is provided on the side surface of the mounting block, and the dovetail groove runs through both ends of the mounting block. The two ends of the dovetail block are respectively arranged adjacent to the two side walls opposite to the printing chamber.

[0011] By adopting the above technical solution, when installing the printer board, the dovetail block is first raised to the top of the printing cavity, and then the dovetail groove is inserted from one end of the dovetail block. The dovetail block is then lowered into the printing cavity. Through the cooperation between the dovetail block, the dovetail groove and the side wall of the printing cavity, the printer board is limited in the four directions of up, down, left and right. The structure is simple and easy to disassemble and assemble.

[0012] Optionally, the top end of the guide rod is fixedly connected to a mounting plate, and a mounting hole is provided on the top surface of the connecting block. The mounting hole passes through the top surfaces of the connecting block and the dovetail block at the same time, and the connecting block is fixedly connected to the mounting plate by a countersunk bolt passing through the mounting hole.

[0013] By adopting the above technical solution, the installation between the connecting block and the guide rod is facilitated, and the mounting hole passes through the top surface of the connecting block and the dovetail block at the same time, which increases the aperture of the mounting hole, so that a larger countersunk bolt can be used, thereby improving the connection stability and saving installation space.

[0014] Optionally, the side edges of the end face of the dovetail block and the side faces of the end faces of the dovetail groove are both provided with round chamfers.

[0015] By adopting the above technical solution, the dovetail block is facilitated to enter the dovetail groove.

[0016] Optionally, the printing cavities are arranged in rows, and a plurality of waste material passages are provided on the top surface of the cylinder body, and the waste material passages are located on both sides of each row of printing cavities.

[0017] By adopting the above technical solution, after the metal powder is laid in the multiple printing cavities, during the subsequent leveling process by the scraper, the excess powder can fall through the waste channel.

[0018] Optionally, both ends of the top surface of the cylinder body protrude outward to form mounting portions, and the mounting portions are clamped onto corresponding mounting slots of the 3D printer and fixed to the 3D printer by bolts.

[0019] By adopting the above technical solution, a corresponding mounting slot will be provided on the 3D printer for installing the cylinder body, and the mounting portion is snapped onto the top of the corresponding mounting slot of the 3D printer and can be detachably connected by bolts, which is convenient for installation.

[0020] In a second aspect, the present application provides a high-throughput 3D printer, which adopts the following scheme:

[0021] A high-throughput 3D printer comprises the above-mentioned matrix cylinder.

[0022] By adopting the above technical solution, it is easy to obtain physical parts with multiple attributes, and at the same time the printing efficiency is improved.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Different types of metal powder can be laid in different printing chambers according to actual conditions. After each layer is printed, the printer plate descends a specified distance, and then the required type of metal powder is laid on the adjacent layer, making it easier to obtain solid parts with multiple properties while improving printing efficiency.

[0025] 2. By connecting the connecting plate to an external drive source, all guide rods can be raised and lowered synchronously, and then all printer boards can be raised and lowered synchronously through the connecting block. The structure is simple and the operation is convenient.

[0026] 3. Through the setting of the dovetail block and dovetail groove, when installing the printer plate, first raise the dovetail block to the top of the print chamber, then insert the dovetail groove from one end of the dovetail block, and then lower the dovetail block into the print chamber. Through the cooperation between the dovetail block, dovetail groove and the side wall of the print chamber, the printer plate is limited in the four directions of up, down, left and right, with a simple structure and easy disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a matrix cylinder for 3D printing in an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram used to show the interior of the cylinder in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the printer board used to illustrate the embodiment of the present application.

[0030] Figure 4 The structural diagram of the embodiment of the present application is used to show the connection relationship between the connecting block and the printer board.

[0031] Explanation of the accompanying reference numerals: 1. Cylinder body; 11. Print chamber; 12. Mounting portion; 13. Waste channel; 2. Printer plate; 21. Mounting block; 3. Connecting plate; 31. Guide rod; 32. Connecting block; 4. Dovetail block; 5. Dovetail groove; 6. Mounting plate; 7. Mounting hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] In the first aspect, the present application discloses a matrix cylinder for 3D printing. Figure 1-3 A matrix cylinder for 3D printing includes a matrix cylinder for 3D printing, including a cylinder body 1, a printer plate 2 and a synchronous lifting assembly; a plurality of printing cavities 11 are arranged through the top surface of the cylinder body 1, and a plurality of printer plates 2 are correspondingly arranged in the printing cavities 11, the printer plates 2 are adapted to the printing cavities 11, and the plurality of printer plates 2 are synchronously lifted and lowered by the synchronous lifting assembly.

[0034] Initially, the top surface of the printer plate 2 is flush with the top surface of the cylinder body 1. During operation, the printer plate 2 is lowered by a synchronized lifting assembly, and then the first layer of metal powder is laid within the print chamber 11. Laser melting of this layer is then performed. By providing multiple print chambers 11, different types of metal powder can be applied to different print chambers 11 according to actual needs. After each layer is printed, the printer plate 2 is lowered a specified distance, and the desired type of metal powder is applied to the adjacent layer. This creates a component with diverse properties, while also improving printing efficiency.

[0035] Reference Figure 1-2 , both ends of the top surface of the cylinder body 1 protrude outward to form a mounting portion 12, and the mounting portion 12 is snapped onto the corresponding mounting slot of the 3D printer and fixed to the 3D printer by bolts. A corresponding mounting slot will be provided on the 3D printer for installing the cylinder body 1, and the mounting portion 12 is snapped onto the corresponding mounting slot of the 3D printer, and can be detachably connected by bolts, which is convenient for installation. The printing chambers 11 are arranged in rows. In this embodiment, the printing chambers 11 are arranged in five rows and five columns, and a plurality of waste slots 13 are provided on the top surface of the cylinder body 1, and the waste slots 13 are located on both sides of each column of printing chambers 11. After the metal powder is laid in the multiple printing chambers 11, the excess powder can fall through the waste slots 13 during the subsequent smoothing process with a scraper.

[0036] Reference Figure 1-3The synchronous lifting assembly includes a connecting plate 3, multiple guide rods 31, and multiple connecting blocks 32. One end of each guide rod 31 is connected to a corresponding connecting block 32, and the other end of each guide rod 31 is connected to the connecting plate 3. The connecting blocks 32 are positioned within the printing chamber 11, and the printer boards 2 are connected above the connecting blocks 32. The connecting plate 3 is raised and lowered by an external drive source. Raising and lowering the connecting plate 3 with an external drive source synchronizes the raising and lowering of all guide rods 31, and further synchronizes the raising and lowering of all printer boards 2 via the connecting blocks 32. This structure is simple and easy to operate. The drive source can be selected based on actual needs, and can include air cylinders, oil cylinders, and other suitable options.

[0037] Reference Figure 2-4 A dovetail block 4 is fixedly connected to the top surface of the connecting block 32, and a mounting block 21 is fixedly connected to the bottom surface of the printer board 2. A dovetail slot 5 is defined on the side of the mounting block 21, into which the dovetail block 4 is secured. The dovetail slot 5 extends through both ends of the mounting block 21, and the ends of the dovetail block 4 are positioned adjacent to the opposite side walls of the print chamber 11. To install the printer board 2, the dovetail block 4 is first raised above the print chamber 11, then the dovetail slot 5 is engaged from one end of the dovetail block 4, and then the dovetail block 4 is lowered into the print chamber 11. The coordination between the dovetail block 4, the dovetail slot 5, and the side walls of the print chamber 11 secures the printer board 2 in all four directions: up, down, left, and right. This results in a simple structure and easy assembly and disassembly.

[0038] Reference Figure 2-4 The top of the guide rod 31 is fixedly connected to a mounting plate 6. A mounting hole 7 is defined on the top surface of the connecting block 32. The mounting hole 7 penetrates both the top surfaces of the connecting block 32 and the dovetail block 4. The connecting block 32 is fixedly connected to the mounting plate 6 via a countersunk bolt passing through the mounting hole 7. This facilitates the installation of the connecting block 32 and the guide rod 31. The mounting hole 7 penetrates both the top surfaces of the connecting block 32 and the dovetail block 4, increasing the diameter of the mounting hole 7 and allowing the use of a larger countersunk bolt, improving connection stability while saving installation space. The side edges of the end face of the dovetail block 4 and the side faces of the end of the dovetail groove 5 are both chamfered to facilitate the entry of the dovetail block 4 into the dovetail groove 5.

[0039] On the second aspect, an embodiment of the present application discloses a high-throughput 3D printer, including the above-mentioned matrix cylinder, which facilitates high-throughput metal materials with multiple properties, thereby obtaining solid components with multiple properties, while improving printing efficiency.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A matrix cylinder for 3D printing, characterized by: It comprises a cylinder body (1), a printer plate (2) and a synchronous lifting assembly; A plurality of printing cavities (11) are provided on the top surface of the cylinder body (1), and a plurality of printer plates (2) are provided and are correspondingly provided in the printing cavities (11). The printer plates (2) are adapted to the printing cavities (11), and the plurality of printer plates (2) are synchronously lifted and lowered by a synchronous lifting assembly.

2. A matrix cylinder for 3D printing according to claim 1, characterized in that: The synchronous lifting assembly comprises a connecting plate (3), a plurality of guide rods (31) and a plurality of connecting blocks (32), one end of the guide rod (31) is correspondingly connected to the connecting block (32), the other end of the guide rod (31) is connected to the connecting plate (3), the connecting block (32) is correspondingly located in the printing cavity (11), the printer plate (2) is correspondingly connected to the upper part of the connecting block (32), and the connecting plate (3) is externally connected to a driving source for lifting.

3. The matrix cylinder for 3D printing according to claim 2, characterized in that: A dovetail block (4) is fixedly connected to the top surface of the connecting block (32), and a mounting block (21) is fixedly connected to the bottom surface of the printer plate (2). A dovetail groove (5) for the dovetail block (4) to be clamped is provided on the side surface of the mounting block (21), and the dovetail groove (5) passes through both ends of the mounting block (21). The two ends of the dovetail block (4) are respectively arranged adjacent to the two side walls opposite to the printing cavity (11).

4. The matrix cylinder for 3D printing according to claim 3, characterized in that: The top end of the guide rod (31) is fixedly connected to a mounting plate (6), a mounting hole (7) is provided on the top surface of the connecting block (32), the mounting hole (7) simultaneously passes through the top surfaces of the connecting block (32) and the dovetail block (4), and the connecting block (32) is fixedly connected to the mounting plate (6) by means of a countersunk bolt passing through the mounting hole (7).

5. A matrix cylinder for 3D printing according to claim 3 or 4, characterized in that: The side edges of the end face of the dovetail block (4) and the side faces of the end face of the dovetail groove (5) are both provided with round chamfers.

6. The matrix cylinder for 3D printing according to claim 1, characterized in that: The printing cavities (11) are arranged in a row, and a plurality of waste material through slots (13) are provided on the top surface of the cylinder body (1), wherein the waste material through slots (13) are located on both sides of each row of printing cavities (11).

7. The matrix cylinder for 3D printing according to claim 1, characterized in that: Both ends of the top surface of the cylinder body (1) protrude outward to form mounting portions (12), and the mounting portions (12) are clamped above the corresponding mounting slots of the 3D printer and fixed to the 3D printer by bolts.

8. A high-throughput 3D printer, characterized in that: The invention comprises the matrix cylinder according to any one of claims 1 to 7.

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