Metal powder printing doctor blade structure

Abstract

The utility model discloses a metal powder prints scraper structure, include: knife box, the knife box is upper and lower opening structure, the knife box inside is located the position of top and bottom and is equipped with scraper body, the utility model has the following beneficial effect: through knife box and inside scraper body, cooperation spring, limit hole and limit block, realize two scraper body can according to the need of user, make corresponding scraper body from knife box inside stretch out and use, if the lower scraper body is used to lay flat, need to use the upper scraper body to scrape, can make the cylinder drive knife box to move down, make the lower scraper body be pressed to the knife box inside, and make the limit block be clamped in the limit hole inside, and the lower scraper body presses spring, makes the spring press the upper scraper body, makes the upper scraper body from the knife box inside stretch out, turns over the knife box, makes the upper scraper body form the lower scraper body, and carries out scraping on the printing platform.

Description

Technical Field

[0001] This utility model relates to the field of metal powder printing, and in particular to a metal powder printing scraper structure. Background Technology

[0002] During the use of a metal printer, metal powder accumulates on the printing plate. Users typically use a scraper to remove and spread the powder, depending on their needs. However, current scraper structures usually have a single, unidirectional blade, using the same blade for both removal and spreading. Over time, the scraper's surface may become uneven due to wear from the powder and the printing plate. This makes it difficult to spread the powder evenly, resulting in uneven powder layer thickness and affecting print quality and accuracy. Therefore, a new scraper structure for metal powder printing is needed to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a metal powder printing scraper structure that solves the problem that current scrapers cannot be used to select different scrapers based on the powder scraping and leveling requirements.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A metal powder printing doctor blade structure, comprising:

[0006] The knife box has an open structure at the top and bottom. Inside the knife box, there are scraper bodies at the top and bottom positions. Multiple springs are arranged between the two scraper bodies, and the upper and lower ends of the springs respectively abut against the two scraper bodies.

[0007] Two limiting holes are provided on both sides of the inner wall of the blade box at the position of the scraper body. Limiting blocks are fixed on both sides of the two scraper bodies, and the scraper bodies are movably engaged in the limiting holes through the limiting blocks.

[0008] Furthermore, the top and bottom of the knife box are both inclined outwards at the positions on both sides of the opening.

[0009] Furthermore, a printing device is provided below the blade box, and a printing table is mounted on the printing device, which is located directly below the scraper body.

[0010] Furthermore, the number of blade boxes is set to two, with the two blade boxes positioned one on the left and one on the right above the printing table.

[0011] Furthermore, mounting platforms are fixed on both the left and right sides of the printing device.

[0012] Furthermore, a cylinder is installed on the top of the mounting platform, and the cylinder is configured as a rotary telescopic cylinder.

[0013] Furthermore, a mounting plate is fixedly provided on the top of the cylinder output end, a circular groove is provided on one side of the mounting plate, and a circular hole is provided on the other side of the mounting plate, the circular groove and the circular hole are connected.

[0014] Furthermore, a rotating rod is rotatably connected inside the circular hole via a bearing, and one end of the rotating rod is fixedly connected to the knife box.

[0015] Furthermore, a rotating block is rotatably connected inside the circular groove. One side of the rotating block is fixedly connected to the rotating rod, and a handle is fixedly connected to the other side of the rotating block.

[0016] Furthermore, the inner wall of the circular groove is provided with an annular groove on one side of the rotating block, and the rotating block is fixed with an annular block on one side of the annular groove, and the annular block slides inside the annular groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the blade box and the internal scraper body, in conjunction with springs, limiting holes, and limiting blocks, two scraper bodies can be extended from inside the blade box for use according to the user's needs. For example, when using the lower scraper body for leveling, the upper scraper body needs to be used for scraping. The cylinder can move the blade box downwards, pressing the lower scraper body into the blade box and engaging the limiting block in the limiting hole. At the same time, the lower scraper body presses the spring, which in turn presses the upper scraper body, causing the upper scraper body to extend from inside the blade box. By flipping the blade box, the upper scraper body becomes the lower scraper body, which is then used for scraping on the printing table. This allows for switching between different scraper bodies to achieve different processing effects.

[0019] 2. Through the cylinder, in conjunction with the rotating block and rotating rod, the height of the blade box can be adjusted by the cylinder, and it can also drive the mounting plate to rotate, thereby rotating the blade box so that the scraper body scrapes and flattens on the mounting table. The rotating block and rotating rod can drive the blade to flip, so that the upper and lower positions of the two scraper bodies can be interchanged, making it convenient for the two scraper bodies to be used on the printing table. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall frontal sectional view;

[0023] Figure 2 This is a three-dimensional schematic diagram of the printing device;

[0024] Figure 3 This is a cross-sectional view of the front of the knife box.

[0025] Figure 4 This is a 3D schematic diagram of the knife box.

[0026] Illustration: 1. Printing device; 2. Printing table; 3. Mounting table; 4. Cylinder; 5. Mounting plate; 6. Rotating block; 7. Rotating handle; 8. Rotating rod; 9. Blade box; 10. Scraper body; 11. Spring; 12. Limiting hole; 1201. Limiting block. Detailed Implementation

[0027] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] This utility model embodiment provides a metal powder printing scraper structure. Please refer to [link / reference]. Figures 1-4 The device includes: a blade box 9, which has an open structure at the top and bottom. Inside the blade box 9, there are two scraper bodies 10 at the top and bottom positions. Multiple springs 11 are arranged between the two scraper bodies 10, and the upper and lower ends of the springs 11 respectively abut against the two scraper bodies 10. Two limiting holes 12 are opened on both sides of the inner wall of the blade box 9 at the positions of the scraper bodies 10. Limiting blocks 1201 are fixed on both sides of the two scraper bodies 10. The scraper bodies 10 are movably engaged in the limiting holes 12 through the limiting blocks 1201.

[0031] like Figures 1-4 As shown, the blade holder 9 provides installation space for the blade body 10, and the design of the upper and lower openings allows the blade body 10 to come into contact with the external metal powder printing environment, making it convenient for the blade body 10 to operate on the metal powder during the printing process.

[0032] The two scraper bodies 10 can process metal powder at different levels. During the printing process, it is necessary to perform operations such as scraping, leveling, and compacting of powder at different heights or stages. After printing, the scraper bodies 10 are needed to scrape off the powder. The two scraper bodies 10 can meet the needs of such different effect processing.

[0033] Spring 11 provides elastic force to maintain a certain pressure and elastic contact between the two squeegee bodies 10. During the printing process, when the squeegee body 10 encounters metal powder layers of different thicknesses or densities, spring 11 can compress or extend according to the actual situation, so that the squeegee body 10 can adaptively adjust the contact pressure with the powder layer. When one of the squeegee bodies 10 is pressed and enters the blade box 9, the squeegee body 10 will press spring 11, causing spring 11 to press the other squeegee body 10, so that the other squeegee body 10 extends out of the blade box 9 for use.

[0034] The cooperation between the limiting hole 12 and the limiting block 1201 restricts the movement direction of the scraper body 10, so that the scraper body 10 can only move up and down in the vertical direction and cannot deviate in other directions. At the same time, after the scraper body 10 enters the scraper box 9, the limiting block 1201 on the scraper body 10 can be locked into the limiting hole 12 to fix the scraper body 10 and prevent the scraper body 10 from falling out of the scraper box 9. Furthermore, the limiting block 1201 has an arc structure and adopts a flexible structure, so that when the scraper body 10 moves inside the scraper box 9, the limiting block 1201 can be squeezed into the scraper box 9 and locked into the limiting hole 12.

[0035] The specific operating process is as follows: As the blade box 9 is driven down by the cylinder 4, the scraper body 10 at the bottom first contacts the metal powder layer on the printing table 2. The cylinder 4 then drives the mounting plate 5 to rotate, which in turn drives the scraper body 10 to move, so that the scraper body 10 can spread the powder evenly. Furthermore, due to the action of the spring 11, the scraper body 10 at the bottom can adaptively adjust according to the thickness and density of the powder layer, and evenly scrape the powder layer.

[0036] When it is necessary to switch the scraper body 10 for powder removal, the cylinder 4 continues to drive the blade box 9 to move, so that the scraper body 10 is pressed onto the print table 2 and pressed into the inside of the blade box 9. The limiting block 1201 on itself is inserted into the limiting hole 12. At the same time, the scraper body 10 presses the spring 11, so that the spring 11 pushes another scraper body 10, so that this scraper body 10 extends out. By rotating the rotating block 6 through the handle 7, the rotating block 6 rotates the rotating rod 8, which drives the blade box 9 to flip, so that the extended scraper body 10 can scrape the powder on the print table 2.

[0037] Please see Figure 3 The top and bottom of the knife box 9 are both inclined outwards at the positions on both sides of the opening.

[0038] like Figure 3 As shown, the inclined structures on both sides of the opening of the blade box 9 are in the shape of an outward V-shape, which can ensure that when the scraper body 10 enters the interior of the blade box 9, the limiting block 1201 enters the interior of the blade box 9 at the same time and is locked into the interior of the limiting hole 12, so that the limiting block 1201 can fix the scraper body 10.

[0039] Please see Figures 1-4 Below the blade box 9 is a printing device 1, and a printing table 2 is installed on the printing device 1. The printing table 2 is located directly below the blade body 10. The number of blade boxes 9 is set to two, with the two blade boxes 9 positioned on the left and right above the printing table 2. Mounting platforms 3 are fixed on both the left and right sides of the printing device 1.

[0040] like Figures 1-4As shown, the printing device 1 is the core control and support component of the entire metal powder printing system, providing the necessary power, motion control, and environmental conditions for the printing process. The printing table 2 is a platform that carries the metal powder and the printed product. It is located directly below the scraper body 10, allowing the scraper body 10 to directly manipulate the metal powder on the printing table 2, such as smoothing and compacting it, preparing it for subsequent printing and forming processes.

[0041] Setting up two blade holders 9 can increase the handling capacity and flexibility of metal powder during the printing process. The left-right distribution allows for simultaneous or alternating operation of metal powder in different areas on the larger working surface of the printing table 2, improving printing efficiency. For example, after one blade holder 9 finishes processing the powder on one side, the other blade holder 9 can quickly process the powder on the other side, reducing the waiting time during the printing process.

[0042] Mounting platform 3 provides stable support and a fixed position for the subsequent installation of other auxiliary components, such as cylinder 4. It acts as a bridge connecting printing device 1 and other functional components, ensuring that these components can be firmly installed on printing device 1 and maintain a stable working state during the printing process.

[0043] Please see Figure 1 , Figure 3 and Figure 4 A cylinder 4 is installed on the top of the mounting platform 3. The cylinder 4 is configured as a rotary telescopic cylinder 4.

[0044] like Figure 1 , Figure 3 and Figure 4 As shown, cylinder 4, as a power actuator, can convert the pressure energy of compressed air into mechanical energy, providing the necessary power for the up-and-down movement and rotation of the blade box 9, enabling the blade box 9 to move precisely according to preset requirements, thereby achieving effective processing of metal powder.

[0045] The rotary telescopic cylinder 4 not only has the telescopic function of the traditional cylinder 4, but also can realize rotational movement. This multi-dimensional movement capability allows the blade box 9 to process metal powder at different angles and heights, meeting the needs of complex printing processes.

[0046] Please continue reading. Figure 1 , Figure 3 and Figure 4A mounting plate 5 is fixedly installed on the top of the output end of cylinder 4. A circular groove is opened on one side of the mounting plate 5, and a circular hole is opened on the other side of the mounting plate 5. The circular groove and the circular hole are connected. A rotating rod 8 is rotatably connected inside the circular hole through a bearing. One end of the rotating rod 8 is fixedly connected to the knife box 9. A rotating block 6 is rotatably connected inside the circular groove. One side of the rotating block 6 is fixedly connected to the rotating rod 8, and a rotating handle 7 is fixedly connected to the other side of the rotating block 6. A ring groove with an annular structure is opened on the inner wall of the circular groove, which is in contact with one side of the rotating block 6. A ring block is fixedly installed on one side of the rotating block 6, and the ring block slides inside the ring groove.

[0047] like Figure 1 , Figure 3 and Figure 4 As shown, the mounting plate 5 serves as an intermediate structure connecting the cylinder 4 with components such as the rotating rod 8 and the rotating block 6. It plays the role of bearing and transmitting force, transmitting the extension and rotation power of the cylinder 4 to subsequent related components, so that the knife box 9 can move as required.

[0048] The circular groove provides installation and rotation space for the rotating block 6, while the circular hole provides installation and rotation channel for the rotating rod 8. The design that connects the two allows the rotating rod 8 and the rotating block 6 to cooperate with each other to realize the rotation function of the knife box 9.

[0049] The bearing reduces the friction of the rotating rod 8 when it rotates in the round hole, so that the rotating rod 8 can rotate more smoothly, reduce energy loss, and improve the service life of the rotating rod 8. As a key component connecting the mounting plate 5 and the blade box 9, the rotating rod 8 transmits the rotational power of the mounting plate 5 to the blade box 9, driving the blade box 9 to rotate, thereby realizing the vertical adjustment of the two scraper bodies 10.

[0050] Rotating block 6 rotates within the circular groove, serving to transmit rotational power and support rotating rod 8. Simultaneously, through its fixed connection with rotating rod 8, it transmits its own rotational motion to rotating rod 8, thereby driving the blade box 9 to rotate. The handle 7 provides an interface for the operator to manually operate rotating block 6. When it is necessary to manually adjust the angle of blade box 9, rotating handle 7 can be used to drive rotating block 6 to rotate.

[0051] The annular groove and annular block limit the rotation range of the rotating block 6 and maintain its stability. The annular groove provides a sliding track for the annular block, allowing it to slide only within the groove, thus limiting the rotation angle of the rotating block 6 and preventing it from over-rotating and damaging the equipment or affecting the printing effect. At the same time, the cooperation between the annular block and the annular groove increases the stability of the rotating block 6 and reduces shaking during rotation.

[0052] The lengths of the two blade boxes 9 and the scraper body 10 can be adjusted as needed to ensure that the two scraper bodies 10 scrape the entire printing table 2.

[0053] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A metal powder printing doctor blade structure, characterized in that, include: The knife box (9) has an open structure at the top and bottom. The knife box (9) is provided with a scraper body (10) at the top and bottom positions. Multiple springs (11) are provided between the two scraper bodies (10). The upper and lower ends of the springs (11) respectively abut against the two scraper bodies (10). Two limiting holes (12) are provided on both sides of the inner wall of the blade box (9) at the position of the scraper body (10). Limiting blocks (1201) are fixed on both sides of the two scraper bodies (10). The scraper body (10) is movably engaged in the limiting hole (12) through the limiting block (1201).

2. The metal powder printing doctor blade structure according to claim 1, characterized in that, The top and bottom of the knife box (9) are both inclined outwards at the positions on both sides of the opening.

3. The metal powder printing doctor blade structure according to claim 1, characterized in that, A printing device (1) is provided below the blade box (9), and a printing table (2) is installed on the printing device (1). The printing table (2) is located directly below the scraper body (10).

4. The metal powder printing scraper structure according to claim 3, characterized in that, The number of the blade box (9) is set to two, with the two blade boxes (9) positioned on the left and right above the printing table (2).

5. The metal powder printing scraper structure according to claim 3, characterized in that, Mounting platforms (3) are fixed on both the left and right sides of the printing device (1).

6. The metal powder printing scraper structure according to claim 5, characterized in that, A cylinder (4) is mounted on the top of the mounting platform (3), and the cylinder (4) is configured as a rotary telescopic cylinder (4).

7. The metal powder printing scraper structure according to claim 6, characterized in that, A mounting plate (5) is fixedly provided on the top of the output end of the cylinder (4). A circular groove is provided on one side of the mounting plate (5), and a circular hole is provided on the other side of the mounting plate (5). The circular groove and the circular hole are connected.

8. The metal powder printing scraper structure according to claim 7, characterized in that, The inside of the circular hole is rotatably connected to a rotating rod (8) via a bearing, and one end of the rotating rod (8) is fixedly connected to the knife box (9).

9. The metal powder printing doctor blade structure according to claim 8, characterized in that, A rotating block (6) is rotatably connected inside the circular groove. One side of the rotating block (6) is fixedly connected to the rotating rod (8), and a handle (7) is fixedly connected to the other side of the rotating block (6).

10. A metal powder printing doctor blade structure according to claim 9, characterized in that, The inner wall of the circular groove is provided with an annular groove on one side of the rotating block (6). The rotating block (6) is fixed with an annular block on one side of the annular groove, and the annular block slides inside the annular groove.

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