Additive anti-deformation 3D printing platform

Abstract

The 3D printing platform comprises a platform mounting frame, a driving motor, a rotating disc, a middle plate and a printing plane, limiting holes which are evenly distributed are formed in the printing plane, the cross section of the lower part of the printing plane is larger than that of the upper part of the printing plane, mechanical locking is formed by increasing the material contact area, and a printed product is prevented from buckling deformation. The middle plate and the printing plane are detachably connected through screws and connecting nails, and modular replacement is supported. The heating module is embedded into the printing plane or the middle plate in a zoned mode, the temperature is accurately controlled through the electric heating resistance wire, and materials are softened so as to facilitate demolding. In addition, material leakage is reduced and manufacturing cost is reduced due to the design of blocking holes in the middle plate. The platform has the advantages of deformation prevention, temperature control demolding and flexible assembly, the 3D printing finished product quality and the operation efficiency are remarkably improved, and the platform is suitable for additive manufacturing of complex-structure and large-size products.

Description

An additive deformation-resistant 3D printing platform Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to an additive manufacturing deformation-resistant 3D printing platform. Background Technology

[0002] 3D printing additive manufacturing is a new manufacturing technology that uses digital models as a basis to build three-dimensional entities by layering materials. Its core principle differs from traditional subtractive manufacturing (such as cutting) or equal-material manufacturing (such as casting), emphasizing "layer-by-layer manufacturing and stacking," and has advantages such as high design freedom, high material utilization, and suitability for customized production.

[0003] In existing 3D printing additive manufacturing technologies, the printed material is prone to warping and deformation due to shrinkage stress during the cooling and hardening process, especially when printing large-size or complex structures, affecting printing accuracy and finished product quality. Furthermore, the lack of disassembly and maintainability of existing platforms limits their applicability and efficiency. Therefore, there is an urgent need for a 3D printing platform that can actively suppress deformation, improve material stability, and offer flexible assembly capabilities. Summary of the Invention

[0004] The purpose of this invention is to provide an additive manufacturing platform with anti-deformation features, which combines anti-deformation, temperature-controlled demolding, and flexible assembly, thereby improving the quality and efficiency of printed products.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an additive manufacturing deformation-resistant 3D printing platform, including a platform mounting frame, a drive motor fixed inside the platform mounting frame, and a rotating disk poweredly connected to the drive motor on the top surface of the drive motor; a middle plate is detachably fixed on the rotating disk, and a printing plane is detachably mounted on the middle plate; uniformly distributed limiting holes are formed on the printing plane, and the lower cross-section of the limiting holes is larger than the upper cross-section; the printing platform also includes a heating module.

[0006] In a further technical solution, the rotating disk is fixedly connected to the rotation output end of the drive motor, and the rotating disk has evenly distributed threaded holes; the intermediate plate has through holes corresponding to the threaded holes, and a screw is inserted into the through hole, the screw passing through the intermediate plate and threadedly connected to the threaded hole.

[0007] A further technical solution is provided, wherein the printing plane is provided with uniformly distributed mounting holes, and the intermediate plate is provided with connecting holes corresponding to the mounting holes; a connecting pin is inserted into the mounting hole, and the connecting pin passes through the printing plane and is threadedly connected to the connecting hole.

[0008] In a further technical solution, the intermediate plate is provided with a baffle hole located below the limiting hole, and the bottom of the baffle hole does not penetrate the intermediate plate.

[0009] In a further technical solution, the heating module is installed inside the intermediate plate, and the heating module includes heating resistance wires arranged in different areas for heating the printing plane.

[0010] In a further technical solution, the upper part of the limiting hole is cylindrical, and the lower part is a frustum shape with a gradually expanding cross-section.

[0011] In a further technical solution, the distribution positions of the blocking holes correspond one-to-one with the limiting holes, and the thickness of the bottom closed end of the blocking hole is 1 / 3 to 1 / 2 of the thickness of the intermediate plate.

[0012] In a further technical solution, the number of threaded holes and through holes are both eight, and they are evenly distributed in a ring, so that the connecting load is symmetrically distributed in the circumferential direction, avoiding local stress concentration, improving the stability of the structure, and reducing deformation or loosening caused by off-center loading.

[0013] In a further technical solution, the heating module is installed within the printing plane, and the heating module includes heating resistance wires arranged in different areas for heating the printing plane.

[0014] In summary, this utility model has the following beneficial effects: strong anti-deformation ability: by limiting the lower expansion design of the hole (the cross-sectional expansion structure), the contact area between the printing material and the hole is increased, and after cooling and hardening, a mechanical locking effect is formed, which effectively suppresses warping deformation during the printing process.

[0015] The heating module adopts a zoned heating wire design, which can selectively soften the local printing material, making it easier to demold, reducing energy consumption, and improving operating efficiency.

[0016] Modular and detachable structure: The rotating disk, intermediate plate and printing plane are detachably connected by screws, connecting nails and other means, which facilitates quick replacement or maintenance of parts and reduces the cost of use.

[0017] The hole-blocking design creates a closed space below the limiting hole to prevent material leakage, while reducing the amount of material used in the middle plate, thus balancing functionality and economy. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 is an exploded three-dimensional schematic diagram of this application;

[0020] Figure 2 is a schematic diagram of the overall assembly of this application;

[0021] Figure 3 is a front view of this application;

[0022] Figure 4 is a cross-sectional view along direction AA in Figure 3 of the application;

[0023] Figure 5 is an enlarged schematic diagram of point B in Figure 4 of this application;

[0024] Figure 6 is a three-dimensional bottom view of the printed plane of this application;

[0025] In the diagram: 100, platform mounting bracket; 200, rotating disk; 201, threaded hole; 300, intermediate plate; 301, through hole; 302, screw; 303, stop hole; 304, connecting hole; 400, printing plane; 401, limiting hole; 402, mounting hole; 403, connecting pin; 500, drive motor. Detailed Implementation

[0026] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0028] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to 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 the present invention.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0031] As shown in Figures 1-6, an additive manufacturing deformation-resistant 3D printing platform includes a platform mounting frame 100. A drive motor 500 is fixed inside the platform mounting frame 100. A rotating disk 200 is provided on the top surface of the platform mounting frame 100. The rotating disk 200 is poweredly connected to the drive motor 500. The drive motor 500 drives the rotating disk 200 to rotate. A middle plate 300 is detachably fixed on the rotating disk 200. A printing plane 400 is installed on the middle plate 300. Restriction holes 401 are evenly distributed on the printing plane 400. The restriction holes 401 are divided into upper and lower parts, with the cross-section of the lower part being larger than that of the upper part.

[0032] In one embodiment, the rotating disk 200 is fixed to the rotation output end of the drive motor 500 by bolts. The rotating disk 200 has evenly distributed threaded holes 201. In this embodiment, there are eight threaded holes 201. The intermediate plate 300 has evenly distributed through holes 301. In this embodiment, there are eight through holes 301, the same number as the threaded holes 201. Screws 302 are inserted into the through holes 301. The screws 302 penetrate the intermediate plate 300 and are threadedly tightened into the threaded holes 201, so that the intermediate plate 300 is fixed on the rotating disk 200.

[0033] In one embodiment, the printing plane 400 has evenly distributed mounting holes 402. In this embodiment, there are sixteen mounting holes 402. A connecting pin 403 is inserted into each mounting hole 402. The intermediate plate 300 has evenly distributed connecting holes 304. In this embodiment, there are sixteen connecting holes 304, the same number as the mounting holes 402. The connecting pin 403 penetrates the printing plane 400 and is inserted into the connecting hole 304, and is threadedly connected to the connecting hole 304, so that the printing plane 400 and the intermediate plate 300 are firmly connected together, realizing quick and flexible assembly.

[0034] In one embodiment, uniformly distributed baffle holes 303 are provided on the intermediate plate 300. The baffle holes 303 are located below the limiting holes 401. The bottom of the baffle holes 303 does not penetrate the intermediate plate 300. The distribution positions of the baffle holes (303) correspond one-to-one with the limiting holes (401). The thickness of the bottom closed end of the baffle hole (303) is 1 / 3 to 1 / 2 of the thickness of the intermediate plate (300). On the one hand, this saves material in the production of the intermediate plate 300. On the other hand, a closed space is formed at the bottom of the limiting hole 401 to block the printing material and prevent the printing material from flowing out completely from the bottom of the limiting hole 401. The thickness is set at 1 / 3 to 1 / 2, which can ensure that the bottom of the baffle hole forms an effective closed structure to prevent the printing material from leaking. It can also significantly reduce the amount of material used in the intermediate plate, reduce manufacturing costs, and achieve lightweighting.

[0035] In one embodiment, a heating module is provided within the printing plane 400 for heating the printing plane 400. For example, an electric heating wire is provided within the printing plane 400. The temperature of the electric heating wire can be controlled to heat and soften the material within the limiting hole 401, making it easier to remove the 3D printed product from the printing plane 400. The electric heating wire is configured to heat different areas of the printing plane 400 separately, which has the advantages of preventing deformation and controlling temperature for demolding.

[0036] In another embodiment, the difference between this embodiment and the previous embodiment is that the heating module is disposed within the intermediate plate 300.

[0037] In one embodiment, the upper part of the limiting hole 401 is cylindrical and the lower part is frustum-shaped, so that the 3D printing material is filled into the limiting hole 401 to prevent the printing material from hardening and fixing in the limiting hole 401. When printing a product, the printing material is injected into the limiting holes 401 at multiple corners of the product to prevent the product from warping or deforming during printing.

[0038] In one embodiment, the upper part of the limiting hole 401 can be rectangular, and the lower part can be circular, with the cross-section of the lower part being larger than that of the upper part, to prevent deformation or warping during printing.

[0039] A method for using an additive manufacturing deformation-resistant 3D printing platform is as follows: First, the rotating disk 200 is installed on the drive motor 500. Then, the screw 302 is inserted into the through hole 301 and tightened into the threaded hole 201 to fix the intermediate plate 300 together with the rotating disk 200. Then, the connecting nail 403 is inserted into the mounting hole 402 and tightened into the connecting hole 304 to fix the printing plane 400 with the intermediate plate 300, thus completing the assembly.

[0040] When using it, set the program according to the shape of the product to be 3D printed. After setting the program, when printing, according to the outline of the product on the printing plane 400, select an appropriate number of limiting holes 401, move the print head to the corresponding limiting holes 401, pause for 4 seconds, so that the printing material fills the corresponding limiting holes 401. Since the lower cross-section of the limiting hole 401 is larger than the upper cross-section, the printing material flows into the limiting hole 401, cools and hardens, and is fixed together with the printing plane 400. Then the print head prints the base of the product, and then prints the product on the base.

[0041] During the printing process, due to the left and right limiting holes 401, the product will not deform or warp due to the cooling and hardening of the printing material.

[0042] After printing, the heating module inside the printing plane 400 is controlled to heat the material inside the limiting hole 401, and then the printed product is removed by a cutter.

[0043] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0044] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0045] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An additive manufacturing deformation-resistant 3D printing platform, characterized in that, The platform includes a platform mounting frame (100), inside which a drive motor (500) is fixed. A rotating disk (200) connected to the drive motor (500) is provided on the top surface of the drive motor (500). An intermediate plate (300) is detachably fixed on the rotating disk (200), and a printing plane (400) is detachably mounted on the intermediate plate (300). The printing plane (400) has uniformly distributed limiting holes (401), the lower cross-section of the limiting holes (401) being larger than the upper cross-section. The printing platform also includes a heating module.

2. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The rotating disk (200) is fixedly connected to the rotation output end of the drive motor (500). The rotating disk (200) has evenly distributed threaded holes (201). The intermediate plate (300) has through holes (301) corresponding to the threaded holes (201). A screw (302) is inserted into the through hole (301). The screw (302) passes through the intermediate plate (300) and is threadedly connected to the threaded hole (201).

3. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The printing plane (400) is provided with uniformly distributed mounting holes (402), and the intermediate plate (300) is provided with connecting holes (304) corresponding to the mounting holes (402); a connecting pin (403) is inserted into the mounting hole (402), and the connecting pin (403) passes through the printing plane (400) and is threadedly connected to the connecting hole (304).

4. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The intermediate plate (300) is provided with a baffle (303) located below the limiting hole (401), and the bottom of the baffle (303) does not penetrate the intermediate plate (300).

5. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The heating module is installed inside the intermediate plate (300), and the heating module includes heating resistance wires arranged in different areas for heating the printing plane (400).

6. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The upper part of the limiting hole (401) is cylindrical, and the lower part is a frustum with a gradually expanding cross-section.

7. The additive manufacturing deformation-resistant 3D printing platform according to claim 4, characterized in that, The distribution positions of the blocking holes (303) correspond one-to-one with the limiting holes (401), and the thickness of the bottom closed end of the blocking holes (303) is 1 / 3 to 1 / 2 of the thickness of the intermediate plate (300).

8. The additive manufacturing deformation-resistant 3D printing platform according to claim 2, characterized in that, The number of threaded holes (201) and through holes (301) are both eight, and they are evenly distributed in a ring.

9. The additive manufacturing deformation-resistant 3D printing platform according to claim 1, characterized in that, The heating module is installed within the printing plane (400), and the heating module includes heating resistance wires arranged in different areas for heating the printing plane (400).

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