Magnetic print platform for 3D printers

Abstract

The utility model discloses a 3D printer's magnetic printing platform relates to 3D printing field, including fixed platform, the fixed platform is fixed with magnetic attraction subassembly, the flexible support plate for carrying the printing model is magnetically attracted on the magnetic attraction subassembly. Advantageous effect lies in: through the bending deformation of flexible support plate realizes "non - destructive demoulding", need not rely on the consumable such as embossed paper, avoid the pollution model surface when tearing paper's residual glue layer, improve the appearance quality of printing piece, and flexible support plate can be repeatedly used, and compared with the embossed paper of single -use, and the annual consumable cost is reduced.

Description

Technical Field

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

[0002] In the practical application of 3D printing technology, the efficiency and safety of separating the printing platform from the model have always been key issues restricting the user experience. Traditional 3D printers typically use a fixed, rigid plate as the modeling platform, which adheres tightly to the plate after printing. Because molten materials such as PLA and ABS generate shrinkage stress upon cooling, the bond between the bottom of the model and the rigid plate is often strong, requiring the use of tools such as scrapers and pry bars to forcibly separate the model during demolding. This process is not only physically demanding but also prone to causing edge cracking and surface scratches, severely impacting the print yield.

[0003] If a layer of masking tape is placed on the substrate and the artwork is printed on the masking tape, the masking tape can be torn off when the artwork needs to be removed. However, a new layer of masking tape needs to be applied to the substrate every time the artwork is printed, which is costly. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic printing platform for a 3D printer to solve the above-mentioned problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The magnetic printing platform for a 3D printer provided by this utility model includes a fixed platform, on which a magnetic suction component is fixed, and a flexible support plate for supporting the printed model is magnetically attached to the magnetic suction component.

[0007] Using the magnetic printing platform of the aforementioned 3D printer, the fixed platform is fixedly installed on the printer frame through a fixed connection component. A magnetic suction component is fixedly connected to the fixed platform, and a flexible support plate is magnetically attracted through the magnetic suction component. The model is printed on the flexible support plate. After printing, the flexible support plate can be directly removed, and the bottom of the model can be easily demolded from the flexible support plate by bending it slightly.

[0008] Preferably, the fixed platform is fixedly connected to a fixed connection assembly on the side facing away from the flexible support plate for fixed connection with the printer frame.

[0009] Preferably, the fixed connection assembly includes a plurality of threaded sleeves fixedly connected to the fixed platform in a rectangular array.

[0010] Preferably, the magnetic suction assembly includes a plurality of magnets, and the fixed platform has a plurality of mounting slots, with magnets disposed in the mounting slots.

[0011] Preferably, the magnet is flush with the surface of the fixed platform and is magnetically attracted to the flexible support plate.

[0012] Preferably, the flexible support plate is made of iron plate.

[0013] Preferably, the magnets are arranged in a rectangular array on a fixed platform.

[0014] Preferably, the bottom of the mounting groove is provided with an annular groove, and the magnet is fitted with the annular groove with a clearance.

[0015] Preferably, the annular groove is filled with structural adhesive.

[0016] Preferably, the flexible support plate has an extension on its side that protrudes from the side of the fixed platform, and the flexible support plate completely corresponds to the fixed platform. The edges of the flexible support plate are smoothed.

[0017] The beneficial effects are:

[0018] 1. "Destructive demolding" is achieved through the bending deformation of the flexible support plate, eliminating the need for consumables such as masking tape. This avoids residual adhesive layers from tearing paper from contaminating the model surface, improving the appearance quality of printed parts. The flexible support plate is reusable, reducing annual consumable costs compared to single-use masking tape.

[0019] 2. The magnetic design of the fixed platform and support plate reduces the loading and unloading time from the traditional 3-5 minutes to less than 30 seconds. The support plate can also be removed to perform demolding outside the printer, avoiding the inconvenience of working in the confined space inside the machine. 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] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a front view structural diagram of the present invention;

[0024] Figure 4 This is a three-dimensional cross-sectional structural diagram of the fixed platform of this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Fixed platform; 2. Fixed connection assembly; 3. Flexible support plate; 4. Threaded sleeve; 5. Extension part; 6. Magnetic suction assembly; 7. Mounting groove; 8. Annular groove; 9. Magnet. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] See Figures 1-4 As shown, this utility model provides a magnetic printing platform for a 3D printer, including a fixed platform 1, a magnetic suction component 6 fixed on the fixed platform 1, and a flexible support plate 3 for supporting the printed model magnetically attached to the magnetic suction component 6.

[0029] The fixed platform 1 is rigidly connected to the printer frame via the threaded sleeve 4 of the fixed connection component 2, ensuring overall stability during printing. A rectangular array of magnets 9 is embedded in the mounting groove 7 on the surface of the fixed platform 1. The magnets 9 are flush with the platform surface and firmly fixed by structural adhesive within the annular groove 8. The flexible support plate 3, made of iron, is tightly adhered to the surface of the fixed platform 1 by the attraction force of the magnets 9, forming a flat printing base.

[0030] As an optional implementation, a fixing connection assembly 2 is fixedly connected to the side of the fixed platform 1 facing away from the flexible support plate 3 for fixing connection with the printer frame.

[0031] The fixed connection assembly 2 includes several threaded sleeves 4 that are fixedly connected to the fixed platform 1 in a rectangular array.

[0032] The magnetic suction component 6 includes several magnets 9. Several mounting slots 7 are provided on the fixed platform 1, and magnets 9 are installed in the mounting slots 7. The magnets are preferably N35 grade or higher neodymium iron boron magnets with a single diameter of 10-15mm to ensure that the attraction force of a single magnet is ≥5N to the iron plate, thus preventing the support plate from shifting during the printing process.

[0033] Magnet 9 is flush with the surface of fixed platform 1 to avoid deviations in printing layer thickness caused by protrusions, especially the first layer printing accuracy, and to ensure the flatness of the bottom of the model. Magnet 9 is magnetically attracted to flexible support plate 3.

[0034] The flexible support plate 3 is made of iron plate. It is recommended to use cold-rolled iron plate with a thickness of 0.3-0.5mm for the flexible support plate 3. It has sufficient rigidity to prevent deformation during printing and flexibility to bend easily during demolding. It can be bent more than 1,000 times without fatigue fracture.

[0035] Magnets 9 are arranged in a rectangular array on fixed platform 1.

[0036] The bottom of the mounting slot 7 has an annular groove 8. The magnet 9 is fitted with the annular groove 8 with a clearance of ≤0.05mm. This facilitates installation and also achieves "secondary fixation" by filling with structural adhesive, preventing the magnet from falling off due to long-term vibration. Tests show that after 1000 installations and removals, the magnet did not loosen.

[0037] The annular groove 8 is filled with structural adhesive.

[0038] The flexible support plate 3 has an extension 5 on its side, which protrudes from the side of the fixed platform 1, and the flexible support plate 3 is completely aligned with the fixed platform 1. The edges of the flexible support plate 3 are smoothed.

[0039] During printing, the model is directly formed on the flexible support plate 3. The evenly distributed rectangular array of magnets ensures the support plate is under balanced force, preventing model displacement due to local loosening during printing. After printing, the model can be easily peeled off from the fixed platform 1 by using the extension 5 of the flexible support plate 3, overcoming magnetic resistance. Because the support plate is flexible, a slight deformation difference will occur between the support plate and the bottom of the model when it is bent at a small arc, allowing the model to separate naturally from the support plate. Demolding can be completed without tools.

[0040] Using the above structure, the fixed platform 1 is fixedly installed on the printer frame by the fixed connection component 2. The fixed platform 1 is fixedly connected to the magnetic suction component 6, and the flexible support plate 3 is magnetically attracted by the magnetic suction component 6. The model is printed on the flexible support plate 3. After printing, the flexible support plate 3 can be directly removed. The bottom of the model can be easily demolded from the flexible support plate 3 by bending it with a small arc.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A magnetic printing platform for a 3D printer, characterized in that: It includes a fixed platform (1), on which a magnetic suction component (6) is fixed, and a flexible support plate (3) for supporting the printed model is magnetically attached to the magnetic suction component (6).

2. The magnetic printing platform of the 3D printer according to claim 1, characterized in that: The fixed platform (1) is fixedly connected to a fixed connection assembly (2) on the side opposite to the flexible support plate (3) for fixed connection with the printer frame.

3. The magnetic printing platform of the 3D printer according to claim 2, characterized in that: The fixed connection assembly (2) includes a plurality of threaded sleeves (4) fixedly connected to the fixed platform (1) in a rectangular array.

4. The magnetic printing platform of the 3D printer according to claim 3, characterized in that: The magnetic suction assembly (6) includes several magnets (9), and the fixed platform (1) has several mounting slots (7), and the mounting slots (7) are filled with magnets (9).

5. The magnetic printing platform of the 3D printer according to claim 4, characterized in that: The magnet (9) is flush with the surface of the fixed platform (1), and the magnet (9) is magnetically attracted to the flexible support plate (3).

6. The magnetic printing platform of the 3D printer according to claim 5, characterized in that: The flexible support plate (3) is made of iron plate.

7. The magnetic printing platform of the 3D printer according to claim 6, characterized in that: The magnets (9) are arranged in a rectangular array on the fixed platform (1).

8. The magnetic printing platform of the 3D printer according to claim 7, characterized in that: The bottom of the mounting groove (7) is provided with an annular groove (8), and the magnet (9) is in clearance fit with the annular groove (8).

9. The magnetic printing platform of the 3D printer according to claim 8, characterized in that: The annular groove (8) is filled with structural adhesive.

10. The magnetic printing platform of the 3D printer according to claim 1, characterized in that: The flexible support plate (3) has an extension (5) on its side, which protrudes from the side of the fixed platform (1), and the flexible support plate (3) completely corresponds to the fixed platform (1). The edge of the flexible support plate (3) is smoothed.

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