Rapid demolding forming platform for metal powder printing

Abstract

The utility model discloses a quick demoulding and forming platform for metal powder printing, which is characterized in that a first side block, a middle block and a second side block can be flexibly split through the modular design of the forming platform, so that the resistance during demoulding is reduced, and the demoulding efficiency is obviously improved. Through the design of a first inserting block and a second inserting block, all modules can be rapidly disassembled and assembled, the demolding process is further simplified, through the design of a heightening vertical frame and a bottom rod, the forming platform is more stable in the printing process, damage to the platform caused by mechanical stress is reduced, and due to the application of a locking mechanism, the machining efficiency is improved. The bottom rod and the heightening vertical frame are firmly connected, platform deformation and damage caused by demolding operation are avoided, all the parts can be independently replaced and maintained through the modularized forming platform design, the necessary maintenance cost is reduced, the service life of the forming platform is prolonged, and the stability of printing quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing technology, specifically to a rapid demolding and molding platform for metal powder printing. Background Technology

[0002] Selective laser melting (SLM) is a technology that utilizes the heat of a laser beam to completely melt metal powder, which then solidifies upon cooling. The resulting products exhibit perfect density and excellent mechanical properties, and can be used to produce small batches of customized products with complex internal structures that are difficult to manufacture using traditional processes. During SLM forming, the powder on the platform melts and solidifies under the influence of the laser onto a substrate fixed in a forming cylinder. Using the substrate as a working plane, the forming cylinder moves downwards step by step to form all parts of the part. During the forming process, each laser beam stroke requires a scraper to fill the forming cylinder with powder, ensuring the cylinder is fully covered.

[0003] In existing technologies, the base, as the forming platform for metal printers, has been widely used in manufacturing. However, in practical applications, some significant problems exist after metal 3D printing:

[0004] 1. Demolding difficulties: After metal 3D printed parts are formed, due to their complex geometry and high precision requirements, they are often difficult to demold from the forming platform. This is mainly because the metal powder melts at high temperature during the printing process and is tightly bonded to the forming platform, which requires a large force to be applied during demolding and can easily damage the printed parts.

[0005] 2. The molding platform is prone to damage: During metal 3D printing, the molding platform needs to withstand high temperatures and mechanical stress. Long-term use can lead to wear, deformation, and even cracking of the platform surface. In addition, frequent demolding operations can also damage the molding platform, affecting its service life, while complete replacement is costly.

[0006] In view of this, a rapid demolding and molding platform for metal powder printing is designed. Utility Model Content

[0007] The purpose of this invention is to provide a rapid demolding and forming platform for metal powder printing, so as to solve the problems of existing metal printer forming platforms mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rapid demolding and forming platform for metal powder printing, comprising a mounting base and a forming platform;

[0009] Several sets of heightening brackets are fixedly connected to the top of the mounting base;

[0010] The forming platform includes a first side block, several sets of intermediate blocks, and a second side block. The several sets of intermediate blocks are connected in sequence, and the several sets of intermediate blocks are connected between the first side block and the second side block.

[0011] The first side block and the middle block are fixedly connected to the side of the second side block with a first insert and a second insert. The middle block and the second side block are each provided with a first slot and a second slot on the side of the first side block. The first insert is inserted into the first slot and the second insert is inserted into the second slot.

[0012] The bottom of both the first side block and the second side block is fixedly connected to several sets of base rods. The several sets of base rods are matched and inserted into the top of several sets of heightening frames. The heightening frames are provided with a locking mechanism, which is suitable for locking the base rods and the heightening frames.

[0013] Preferably, the shape of the first insert block is adapted to the shape of the first slot.

[0014] Preferably, the shape of the second insert is adapted to the shape of the second slot, and the length of the second insert is less than the length of the first insert.

[0015] Preferably, the locking mechanism includes a locking rod, a pull block, and a spring, wherein:

[0016] The locking rod is interlocked and connected within the heightening frame with a clearance fit.

[0017] The pull block and locking rod are fixedly connected to the outside of the heightening stand;

[0018] The spring is fixedly connected between the pull block and the outer surface of the heightening stand.

[0019] Preferably, a locking hole is provided through the lower end of the bottom rod, and the end of the locking rod away from the pull block is movably inserted into the locking hole, and the diameter of the locking rod is adapted to the inner diameter of the locking hole.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. The rapid demolding molding platform for metal powder printing has a modular design, in which the first side block, middle block and second side block can be flexibly separated, reducing the resistance during demolding and significantly improving the demolding efficiency. The design of the first and second insert blocks allows for quick disassembly and assembly between the modules, further simplifying the demolding process.

[0022] 2. The rapid demolding molding platform for metal powder printing is designed with an elevated stand and a base rod, which makes the molding platform more stable during the printing process and reduces mechanical stress damage to the platform. The application of the locking mechanism ensures a firm connection between the base rod and the elevated stand, avoiding platform deformation and damage caused by demolding operations.

[0023] 3. The rapid demolding and molding platform for metal powder printing features a modular molding platform design, which allows each part to be replaced and maintained independently, reducing necessary maintenance costs, extending the service life of the molding platform, and ensuring the stability of printing quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a rapid demolding and molding platform for metal powder printing according to this utility model;

[0025] Figure 2 This utility model relates to a rapid demolding and molding platform for metal powder printing. Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a partial frontal sectional view of a rapid demolding and molding platform for metal powder printing according to the present invention.

[0027] Figure 4 This is a schematic diagram of the mounting base structure of a rapid demolding molding platform for metal powder printing according to the present invention;

[0028] Figure 5 This is a schematic diagram of the molding platform assembly for a rapid demolding molding platform for metal powder printing according to this utility model;

[0029] Figure 6 This is an exploded view of the molding platform of a rapid demolding molding platform for metal powder printing according to this utility model;

[0030] Figure 7 This is a schematic diagram of the intermediate block structure of a rapid demolding and molding platform for metal powder printing according to this utility model.

[0031] In the picture:

[0032] 1. Mounting base; 2. Molding platform; 21. First side block; 22. Middle block;

[0033] 23. Second side block; 24. First insert block; 25. Second insert block; 26. First slot;

[0034] 27. Second slot; 3. Heightening stand; 4. Base rod; 41. Lock hole;

[0035] 5. Locking mechanism; 51. Locking rod; 52. Pull block; 53. Spring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Please see Figure 1-7 This utility model provides a technical solution: a rapid demolding and forming platform for metal powder printing, including a mounting base 1 and a forming platform 2.

[0040] Several sets of extension brackets 3 are fixedly connected to the top of the mounting base 1. Specifically, the extension brackets 3 are fixed to the top of the mounting base 1 by bolts. The appropriate number of extension brackets 3 can be installed according to the actual needs of use. The mounting base 1 can be installed in the forming cavity of the metal printer.

[0041] The forming platform 2 includes a first side block 21, several sets of intermediate blocks 22, and a second side block 23. The several sets of intermediate blocks 22 are connected in sequence, and the several sets of intermediate blocks 22 are connected between the first side block 21 and the second side block 23.

[0042] A first insert 24 and a second insert 25 are fixedly connected to the side of the first side block 21 and the middle block 22 near the side block 23. A first slot 26 and a second slot 27 are provided on the side of the middle block 22 and the second side block 23 near the first side block 21. The first insert 24 is inserted into the first slot 26 and the second insert 25 is inserted into the second slot 27.

[0043] The shape of the first insert 24 is adapted to the shape of the first slot 26. Specifically, the shape of the first insert 24 and the first slot 26 are adapted to ensure the stability and reliability of the insertion. This ensures that the various parts of the forming platform 2 are tightly connected during the printing process, avoiding the decrease in printing accuracy and damage to the forming platform caused by loosening.

[0044] The shape of the second insert 25 is adapted to the shape of the second slot 27, and the length of the second insert 25 is less than the length of the first insert 24. Specifically, the length of the second insert 25 is slightly less than the length of the first insert 24, that is, the length of the second slot 27 is slightly less than the length of the first slot 26. This ensures that after the components of the molding platform 2 are disassembled, since the top surfaces of the first side block 21, the middle block 22, and the second side block 23 are all printing contact surfaces, the differentiated design of the second insert 25 and the first insert 24 prevents the vertical positions of the first side block 21, the middle block 22, and the second side block 23 from being reversed during reassembly, thus ensuring the accuracy of assembly.

[0045] Specifically, the rapid demolding molding platform for metal powder printing, through the modular design of the molding platform 2, allows the first side block 21, the middle block 22, and the second side block 23 to be flexibly separated, reducing resistance during demolding and significantly improving demolding efficiency. The design of the first insert block 24 and the second insert block 25 enables the modules to be quickly disassembled and assembled, further simplifying the demolding process.

[0046] This rapid demolding molding platform for metal powder printing features a modular molding platform 2 design, which allows each part to be replaced and maintained independently, reducing necessary maintenance costs, extending the service life of the molding platform 2, and ensuring the stability of printing quality.

[0047] Several sets of base rods 4 are fixedly connected to the bottom of the first side block 21 and the second side block 23. The several sets of base rods 4 are matched and inserted into the top of several sets of heightening frames 3. The heightening frame 3 is provided with a locking mechanism 5, which is suitable for locking the base rods 4 and the heightening frame 3.

[0048] The locking mechanism 5 includes a locking rod 51, a pull block 52, and a spring 53, wherein:

[0049] The locking rod 51 is interlocked and connected within the heightening frame 3 with a clearance fit;

[0050] Pull block 52 and locking rod 51 are fixedly connected to the outside of the heightening stand 3;

[0051] Spring 53 is fixedly connected between pull block 52 and the outer surface of heightening stand 3.

[0052] A locking hole 41 is formed through the lower end of the base rod 4. The end of the locking rod 51 away from the pull block 52 is movably inserted into the locking hole 41, and the diameter of the locking rod 51 is adapted to the inner diameter of the locking hole 41. For details, please refer to the attached instruction manual. Figure 2-5 The riser stand 3 has a hole on one side for the locking rod 51 to pass through. During installation, the user can first pull the locking rod 51 outward through the pull block 52. At this time, the spring 53 is in a stretched state. The spring 53 exerts a synchronous elastic force on the pull block 52 and the locking rod 51. Then, the bottom rod 4 is inserted and connected to the inside of the riser stand 3. At this time, the locking hole 41 corresponds to the position of the locking rod 51. Through the reset action of the spring 53, the locking rod 51 is inserted and connected to the locking hole 41. The locking rod 51 ensures the reliability of the locking mechanism 5, making the forming platform 2 more stable during the printing process and reducing the damage of mechanical stress to the platform. The application of the locking mechanism 5 ensures the firm connection between the bottom rod 4 and the riser stand 3, avoiding platform deformation and damage caused by demolding operations. The user can also control the locking rod 51 to be pulled out from the locking hole 41 through the pull block 52, so that the bottom rod 4 can be disassembled.

[0053] Specifically, after printing is completed, the base rod 4 can be removed from the heightening stand 3 by locking mechanism 5. Then, the forming platform 2 and the printed product can be taken out of the printer at the same time. The components of the forming platform 2 can be separated from the contact position of the printed product by gradually disassembling the first side block 21, the middle block 22, and the second side block 23.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid demolding and molding platform for metal powder printing, characterized in that, Includes a mounting base (1) and a molding platform (2); The top of the mounting base (1) is fixedly connected to several sets of heightening brackets (3); The forming platform (2) includes a first side block (21), several sets of intermediate blocks (22), and a second side block (23). The several sets of intermediate blocks (22) are connected in sequence, and the several sets of intermediate blocks (22) are connected between the first side block (21) and the second side block (23). The first side block (21) and the middle block (22) are fixedly connected with a first insert (24) and a second insert (25) on the side of the second side block (23) near the second side block (23). The middle block (22) and the second side block (23) are provided with a first slot (26) and a second slot (27) on the side of the first side block (21). The first insert (24) is inserted into the first slot (26) and the second insert (25) is inserted into the second slot (27). The bottom of the first side block (21) and the second side block (23) are fixedly connected with several sets of bottom rods (4). The several sets of bottom rods (4) are matched and inserted into the top of several sets of heightening frames (3). The heightening frame (3) is provided with a locking mechanism (5). The locking mechanism (5) is suitable for locking the bottom rods (4) and the heightening frame (3).

2. The rapid demolding and forming platform for metal powder printing according to claim 1, characterized in that: The shape of the first insert (24) is adapted to the shape of the first slot (26).

3. The rapid demolding and molding platform for metal powder printing according to claim 1, characterized in that: The second insert (25) is adapted to the shape of the second slot (27), and the length of the second insert (25) is less than the length of the first insert (24).

4. The rapid demolding and forming platform for metal powder printing according to claim 1, characterized in that, The locking mechanism (5) includes a locking rod (51), a pull block (52), and a spring (53), wherein: The locking rod (51) is interlocked and connected within the heightening frame (3) with a clearance fit; The pull block (52) and the locking rod (51) are fixedly connected to the outside of the heightening stand (3); The spring (53) is fixedly connected between the pull block (52) and the outer surface of the heightening stand (3).

5. The rapid demolding and molding platform for metal powder printing according to claim 4, characterized in that: The bottom rod (4) has a through-hole (41) at its lower end. The end of the locking rod (51) away from the pull block (52) is movably inserted into the locking hole (41), and the diameter of the locking rod (51) is adapted to the inner diameter of the locking hole (41).

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