3D printing platform

Abstract

The utility model provides a kind of 3D printing platform, including base, fixed frame, lifting frame and printing panel, base top is provided with recess, fixed frame and lifting frame are located in recess, and fixed frame is located in the outer edge of lifting frame, fixed frame is connected with base, lifting frame has two states of lifting and landing relative to base;Printing panel is located in the top of lifting frame and fixed frame.The utility model is provided with fixed frame and lifting frame, and fixed frame is fixedly connected with base, to provide stable stress-free mechanical support for printing panel;Lifting frame is lifted up from the middle of panel bottom by gear and rack mechanism, and magnet on fixed frame is set to adsorb the outer edge of panel bottom, to form the balanced stress situation of middle lifting and outer edge adsorption combination, to make printing panel balanced in stress during removal, effectively prevent panel warping or deformation caused by single-point stress, to ensure the convenience of removing panel, and to ensure the long-term flatness of printing panel.

Description

Technical Field

[0001] This utility model relates to a platform, specifically a 3D printing platform, and belongs to the field of 3D printing technology. Background Technology

[0002] Currently, most mainstream FDM (Fused Deposition Modeling) 3D printers on the market use magnetic printing platforms to achieve rapid installation and removal of the printing panel. This magnetic platform typically consists of a metal plate fixed to the printer base and a removable printing panel covering it. The bottom of the printing panel is attached with ferromagnetic material or another set of magnets, which are firmly fixed to the bottom metal plate through magnetic attraction, thus providing a stable building surface for the printing process.

[0003] However, after printing, users of this type of printing platform need to frequently remove the printing panel by bending or prying to take out the model. This long-term, repeated removal action can cause plastic deformation of the bottom metal plate, resulting in unevenness or warping. Once the metal plate is deformed, the adhesion between it and the printing panel will no longer be tight and uniform, which will directly affect the flatness of the printing panel, leading to a decrease in the accuracy of the first layer of the printed model, an uneven bottom surface, or even printing failure. Utility Model Content

[0004] Based on the above background, the purpose of this utility model is to provide a 3D printing platform that avoids deformation of the printing panel and is easy to handle, thereby solving the problems described in the background art.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A 3D printing platform includes a base, a fixed frame, a lifting frame, and a printing panel. The base has a groove on its top, and the fixed frame and the lifting frame are located in the groove. The fixed frame is located on the outer edge of the lifting frame and is connected to the base. The lifting frame has two states relative to the base: raised and lowered. The printing panel is located on top of the lifting frame and the fixed frame, and the printing panel is detachably mounted from the fixed frame.

[0007] Preferably, the base has a placement cavity located at the bottom of the groove, the placement cavity is connected to the groove, a gear and a rack are provided inside the placement cavity, the rack is placed longitudinally, the gear and the rack mesh with each other, the rack is slidably connected to the base, and the upper end of the rack is connected to the middle of the lifting frame.

[0008] Preferably, a through groove is formed on one side of the base, the through groove is connected to the placement cavity, a rotating rod is provided in the through groove, the rotating rod is placed coaxially with the gear, the rotating rod is connected to the gear, and the rotating rod is rotatably connected to the base.

[0009] Preferably, a handle is provided at the end of the rotating rod away from the placement cavity, and the handle is connected to the rotating rod.

[0010] Preferably, a plurality of magnets are provided on the top of the fixing frame, the magnets are connected to the fixing frame, and the magnets are magnetically engaged with the printing panel.

[0011] Preferably, a limiting part is provided at the top of the base, the limiting part is located at the outer edge of the groove, and the limiting part is connected to the base.

[0012] Preferably, the magnets are arranged at equal distances.

[0013] Preferably, the number of magnets is at least four.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This utility model discloses a 3D printing platform that provides stable, stress-free mechanical support for the printing panel by setting a fixed frame and a lifting frame, with the fixed frame being fixedly connected to the base. The lifting frame lifts the panel from the bottom center upwards through a gear and rack mechanism, while a magnet set on the fixed frame attracts the bottom outer edge of the panel, forming a balanced force situation that combines the lifting at the center and the attraction at the outer edge. This ensures that the printed panel is subjected to uniform and balanced force during removal, effectively preventing panel warping or deformation caused by single-point force. This not only ensures the convenience of removing the panel but also ensures the long-term flatness of the printed panel. Attached Figure Description

[0016] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the positional structure of the fixed frame and the lifting frame of this utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 yes Figure 3 Enlarged diagram of section A in the middle;

[0021] Figure 5 yes Figure 3 Enlarged schematic diagram of section B in the middle.

[0022] In the diagram: 1. Base; 2. Fixing frame; 3. Lifting frame; 4. Printing panel; 5. Groove; 6. Placement cavity; 7. Gear; 8. Rack; 9. Through slot; 10. Rotating rod; 11. Rotating handle; 12. Magnet; 13. Limiting part. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0024] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0026] like Figures 1-5 As shown, a 3D printing platform includes a base 1, a fixed frame 2, a lifting frame 3, and a printing panel 4. A square groove 5 is machined in the center of the top of the base 1, and a hidden placement cavity 6 is connected to the lower part of the groove 5. A through groove 9 connected to the placement cavity 6 is also opened on the side wall of the base 1. A raised limiting part 13 is provided around the top edge of the base 1. The function of this limiting part 13 is to ensure that the printing panel 4 can be accurately positioned.

[0027] The fixing frame 2 is securely installed in the outer edge area of ​​the groove 5 inside the base 1. The top surface of the fixing frame 2 is on the same horizontal plane as the top surface of the base 1. At the center of the four sides of the top surface of the fixing frame 2, four equidistant magnets 12 are respectively embedded, which are used to provide stable magnetic attraction force.

[0028] The lifting frame 3 is a square frame structure that matches the fixed frame 2, located inside the space enclosed by the fixed frame 2. The lifting frame 3 achieves lifting movement through a gear 7 and a rack 8: the rack 8 is vertically installed in the placement cavity 6 of the base 1, with its upper end fixedly connected to the middle of the lifting frame 3; the gear 7 and rack 8 are in a meshing state; a rotating rod 10 passes through a slot 9 in the side wall of the base 1 and is connected to the shaft of the gear 7, with a manual handle 11 for easy operation at the outer end of the rotating rod 10. When the handle 11 is rotated, the lifting frame 3 can smoothly rise or fall through the transmission of the gear 7 and rack 8.

[0029] The dimensions of the printing panel 4 are precisely matched with the limiting part 13 of the base 1. Under normal operating conditions, the printing panel 4 is placed stably on the support plane formed by the fixed frame 2 and the limiting part 13, ensuring that the printing panel 4 is fully supported.

[0030] When the printed work needs to be removed, the operator simply rotates the handle 11 clockwise. This action, via the gear 7 and rack 8 mechanism, causes the lifting frame 3 to rise smoothly, starting from the center area at the bottom of the printing panel 4. Simultaneously, the magnet 12, fixed to the fixing frame 2, attracts the outer edge of the bottom of the printing panel 4, creating a balanced force state of central lifting and peripheral attraction. This ingenious mechanical design ensures that the printing panel 4 remains horizontal throughout the removal process, effectively preventing one-sided tilting or deformation. Once the printing panel 4 is fully lifted, the user can easily remove it. After removing the work, rotating the handle 11 in the opposite direction returns the entire platform to the ready-to-print state.

[0031] The implementation principle of this utility model's 3D printing platform is as follows:

[0032] When a part needs to be retrieved, the lifting frame 3 is smoothly lifted from the center of the panel via gear 7 and rack 8. Simultaneously, the magnet 12 on the fixed frame 2 attracts the outer edge of the panel, forming a balanced force couple between the central lifting and the peripheral attraction, ensuring the panel detaches horizontally without the risk of warping. This process ensures that the magnetic force is applied only briefly at the moment of retrieval, retaining the advantage of convenient retrieval while completely eliminating the cause of panel deformation. This significantly extends the platform's lifespan while maintaining printing accuracy.

[0033] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A 3D printing platform, characterized in that: The 3D printing platform includes a base (1), a fixed frame (2), a lifting frame (3), and a printing panel (4). The base (1) has a groove (5) on its top. The fixed frame (2) and the lifting frame (3) are located in the groove (5), and the fixed frame (2) is located on the outer edge of the lifting frame (3). The fixed frame (2) is connected to the base (1). The lifting frame (3) has two states relative to the base (1): raised and lowered. The printing panel (4) is located on top of the lifting frame (3) and the fixed frame (2). The printing panel (4) and the fixed frame (2) are detachably set.

2. The 3D printing platform according to claim 1, characterized in that: The base (1) has a placement cavity (6) and the placement cavity (6) is located at the lower part of the groove (5). The placement cavity (6) is connected to the groove (5). A gear (7) and a rack (8) are provided inside the placement cavity (6). The rack (8) is placed longitudinally. The gear (7) and the rack (8) mesh with each other. The rack (8) is slidably connected to the base (1). The upper end of the rack (8) is connected to the middle part of the lifting frame (3).

3. The 3D printing platform according to claim 2, characterized in that: A through groove (9) is provided on one side of the base (1), the through groove (9) is connected to the placement cavity (6), a rotating rod (10) is provided in the through groove (9), the rotating rod (10) is placed coaxially with the gear (7), the rotating rod (10) is connected to the gear (7), and the rotating rod (10) is rotatably connected to the base (1).

4. The 3D printing platform according to claim 3, characterized in that: A handle (11) is provided at the end of the rotating rod (10) away from the placement cavity (6), and the handle (11) is connected to the rotating rod (10).

5. The 3D printing platform according to claim 4, characterized in that: The top of the fixed frame (2) is provided with several magnets (12), the magnets (12) are connected to the fixed frame (2), and the magnets (12) are magnetically engaged with the printing panel (4).

6. The 3D printing platform according to claim 5, characterized in that: The base (1) is provided with a limiting part (13) at the top. The limiting part (13) is located at the outer edge of the groove (5) and is connected to the base (1).

7. The 3D printing platform according to claim 5, characterized in that: The magnets (12) are arranged at equal distances.

8. The 3D printing platform according to claim 7, characterized in that: The number of magnets (12) is at least four.

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