Photocuring 3D printing device suitable for printing biological ceramic bone scaffold

Abstract

The utility model discloses a photocuring 3D printing device suitable for printing a biological ceramic bone scaffold, and particularly relates to the technical field of photocuring 3D printing devices, the photocuring 3D printing device comprises a 3D printing machine body, a light source assembly is arranged at the bottom of an inner cavity of the 3D printing machine body, and an electric push rod is arranged at the bottom of the light source assembly; the two sides of the light source assembly are symmetrically and fixedly connected with first stable sliding blocks. Firstly, the depth in the liquid storage box is adjusted by controlling the adjusting frame to slide outside the liquid storage box, the liquid storage amount of the liquid storage box can be adjusted, the sealing strength in the adjusting process is kept through the sealing ring, the sealing effect is not affected, and the second stabilizing sliding block slides in the stabilizing sliding groove, so that the stability of the liquid storage box is improved. The stability of the adjusting frame during adjustment is improved, the position after adjustment is conveniently fixed by rotating a first fastening screw rod, the use effect is improved, the liquid storage amount in the liquid storage box is conveniently adjusted according to needs, and adjustment and use are convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of photopolymerization 3D printing devices, and more specifically, to a photopolymerization 3D printing device suitable for printing bioceramic bone scaffolds. Background Technology

[0002] With the continuous development of medical technology, the demand for bone tissue repair and regeneration is increasing. Bioceramic bone scaffolds, due to their excellent biocompatibility, osteoconductivity, and biodegradability, have broad application prospects in the field of bone repair. However, traditional manufacturing methods struggle to precisely control the microstructure and complex shape of the bone scaffold, failing to meet the needs of personalized medicine. Photopolymerization 3D printing technology, as an advanced additive manufacturing technology, provides a new solution for the preparation of bioceramic bone scaffolds.

[0003] Existing photopolymer 3D printing devices use a fixed-size liquid reservoir and a fixed amount of liquid when printing bioceramic bone scaffolds. When printing larger structures, the amount of liquid used increases. To avoid insufficient liquid, it is necessary to use a liquid reservoir of a different size, which is inconvenient to adjust the liquid volume as needed. Therefore, a photopolymer 3D printing device suitable for printing bioceramic bone scaffolds is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a photopolymerization 3D printing device suitable for printing bioceramic bone scaffolds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photopolymerization 3D printing device suitable for printing bioceramic bone scaffolds, comprising a 3D printer body, a light source assembly disposed at the bottom of the inner cavity of the 3D printer body, an electric push rod disposed at the bottom of the light source assembly, first stabilizing sliders symmetrically fixedly connected to both sides of the light source assembly, a stabilizing rod inserted in the middle of the first stabilizing slider, and a liquid storage box disposed at the top of the light source assembly.

[0006] The top of the liquid storage box is fixedly connected to a support plate around its perimeter. The liquid storage box is symmetrically provided with stabilizing grooves around its perimeter. A sealing ring is embedded in the outer surface of the bottom of the liquid storage box. An adjusting frame is fitted onto the bottom of the liquid storage box. A transparent plate is fixedly connected to the bottom inner cavity of the adjusting frame. A second stabilizing slider is fixedly connected to the inner cavity of the adjusting frame. First fastening screws are symmetrically inserted into both sides of the adjusting frame.

[0007] The worktable of the 3D printer body is symmetrically fixedly connected to both sides of the fixed rod. The middle of the fixed rod is fitted with a pressure plate and a nut. The top of the inner cavity of the 3D printer body is provided with a lifting plate, and a forming platform is provided at the bottom of one end of the lifting plate.

[0008] Preferably, the liquid storage box is embedded in the bottom of the worktable of the 3D printer body, the support plate is located on the top of the worktable of the 3D printer body, and the transparent plate corresponds to the light source assembly.

[0009] Preferably, the two fixing rods are arranged on both sides of the support plate, the nut is arranged on the top of the pressure plate, and one end of the pressure plate is located at the top of the support plate.

[0010] Preferably, the second stabilizing slider is adapted to the stabilizing groove, the second stabilizing slider is disposed in the middle of the stabilizing groove, the sealing ring is disposed at the bottom of the stabilizing groove, and the wall of the sealing ring is in contact with the inner cavity wall of the adjusting frame.

[0011] Preferably, a screw is inserted into the end of the lifting plate away from the forming platform. The screw is threadedly connected to the lifting plate, and a motor is connected to the bottom end of the screw. The motor is fixed in the middle of the 3D printer body.

[0012] Preferably, a second fastening screw is inserted into the top of the end of the lifting plate near the molding platform, and a second connecting seat is fixedly connected to the top of the molding platform. The top of the second connecting seat has a positioning slot, and the molding platform is located directly above the liquid storage box.

[0013] Preferably, a first connecting seat is fixedly connected to the bottom of the lifting plate near the forming platform, the positioning slot is adapted to the first connecting seat, the first connecting seat is located in the middle of the positioning slot, and one end of the forming platform is in contact with the bottom wall of the second connecting seat.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model first adjusts the depth of the liquid storage box by controlling the adjustment frame to slide outside the liquid storage box, thereby adjusting the liquid storage volume. The sealing ring maintains the sealing strength during the adjustment process without affecting the sealing effect. The second stabilizing slider slides inside the stabilizing groove to improve the stability of the adjustment frame during adjustment. The first fastening screw can be rotated to fix the adjusted position, improving the use effect and making it convenient to adjust the liquid storage volume inside the liquid storage box as needed.

[0016] This invention also controls the up-and-down movement of the light source assembly by activating an electric push rod, which allows adjustment of the height of the light source assembly when adjusting the internal dimensions of the liquid storage box, ensuring that the top of the light source assembly is always in contact with the transparent plate, thus improving the photocuring printing effect. The stability of the light source assembly movement is improved through the cooperation of the first stabilizing slider and the stabilizing rod. The installation of the molding platform is facilitated by the cooperation of the first connecting seat and the positioning slot, and the installation position of the molding platform is easily fixed by rotating the second fastening screw, making it convenient for disassembly, installation and use.

[0017] In summary, through the interaction of the above-mentioned multiple functions, it is convenient to adjust the liquid storage volume inside the liquid storage box as needed, making it easy to adjust and use, and also convenient to install and disassemble the molding platform. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0020] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is a cross-sectional structural diagram of the liquid storage box of this utility model.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the lifting plate and forming platform of this utility model.

[0023] The attached figures are labeled as follows: 1. 3D printer body; 2. Light source assembly; 3. Electric push rod; 4. First stabilizing slider; 5. Stabilizing rod; 6. Liquid reservoir; 7. Support plate; 8. Adjustment frame; 9. Transparent plate; 10. Second stabilizing slider; 11. First fastening screw; 12. Stabilizing groove; 13. Sealing ring; 14. Fixing rod; 15. Pressure plate; 16. Nut; 17. Lifting plate; 18. Screw; 19. Motor; 20. Second fastening screw; 21. First connecting seat; 22. Molding platform; 23. Second connecting seat; 24. Positioning slot. Detailed Implementation

[0024] 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.

[0025] As attached Figure 1-5 The illustrated photopolymerization 3D printing device for printing bioceramic bone scaffolds includes a 3D printer body 1. A light source assembly 2 is located at the bottom of the inner cavity of the 3D printer body 1. An electric push rod 3 is located at the bottom of the light source assembly 2. Activating the electric push rod 3 can adjust the height of the light source assembly 2. First stabilizing sliders 4 are symmetrically fixedly connected to both sides of the light source assembly 2. A stabilizing rod 5 is inserted into the middle of the first stabilizing sliders 4. The cooperation between the first stabilizing sliders 4 and the stabilizing rod 5 improves the stability of the up-and-down movement of the light source assembly 2. A liquid storage box 6 is located at the top of the light source assembly 2 to support the original liquid, facilitating photopolymerization printing.

[0026] A support plate 7 is fixedly connected to the top of the liquid storage box 6, which facilitates the installation and placement of the liquid storage box 6. A stabilizing groove 12 is symmetrically opened around the perimeter of the liquid storage box 6. A sealing ring 13 is embedded on the outer surface of the bottom end of the liquid storage box 6. An adjusting frame 8 is fitted onto the bottom end of the liquid storage box 6. A transparent plate 9 is fixedly connected to the bottom inner cavity of the adjusting frame 8. A second stabilizing slider 10 is fixedly connected to the inner cavity of the adjusting frame 8. First fastening screws 11 are symmetrically inserted on both sides of the adjusting frame 8. The sealing ring 13 improves the sealing strength of the liquid storage box 6 and the adjusting frame 8. By sliding the second stabilizing slider 10 inside the stabilizing groove 12, the distance between the transparent plate 9 and the support plate 7 can be adjusted, thereby adjusting the liquid storage volume for convenient printing. The height of the adjusting frame 8 can be adjusted and fixed by rotating the first fastening screw 11 for convenient use.

[0027] The worktable of the 3D printer body 1 is symmetrically fixed with fixing rods 14 on both sides. The middle of the fixing rods 14 is fitted with a pressure plate 15 and a nut 16. The top of the inner cavity of the 3D printer body 1 is provided with a lifting plate 17. A forming platform 22 is provided at the bottom of one end of the lifting plate 17. By rotating the nut 16, the pressure plate 15 is controlled to squeeze the support plate 7, which facilitates the fixing of the liquid storage box 6 and facilitates the installation and disassembly of the liquid storage box 6.

[0028] As attached Figure 1 , 2 As shown, the liquid storage box 6 is embedded in the bottom of the worktable of the 3D printer body 1, the support plate 7 is located on the top of the worktable of the 3D printer body 1, and the transparent plate 9 corresponds to the light source assembly 2. The support plate 7 facilitates the support of the liquid storage box 6, and the transparent plate 9 facilitates the light source assembly 2 to achieve photopolymerization printing.

[0029] As attached Figure 2 , 3 As shown, two fixing rods 14 are set on both sides of the support plate 7, and nuts 16 are set on the top of the pressure plate 15. One end of the pressure plate 15 is located on the top of the support plate 7. By rotating the nut 16 to press the pressure plate 15, the support plate 7 can be pressed, which facilitates the placement and fixing of the liquid storage box 6 and the support plate 7.

[0030] As attached Figure 2-4 As shown, the second stabilizing slider 10 is adapted to the stabilizing groove 12. The second stabilizing slider 10 is located in the middle of the stabilizing groove 12, and the sealing ring 13 is located at the bottom of the stabilizing groove 12. The wall of the sealing ring 13 is in contact with the inner wall of the adjusting frame 8. By sliding the second stabilizing slider 10 inside the stabilizing groove 12, the depth of the transparent plate 9 can be adjusted, thereby adjusting the liquid storage volume. The sealing ring 13 also improves the connection sealing strength between the liquid storage box 6 and the adjusting frame 8.

[0031] As attached Figure 2 As shown, a screw 18 is inserted into the end of the lifting plate 17 away from the forming platform 22. The screw 18 is threadedly connected to the lifting plate 17. A motor 19 is connected to the bottom end of the screw 18. The motor 19 is fixed in the middle of the 3D printer body 1. Starting the motor 19 controls the screw 18 to rotate, which can move the lifting plate 17 up and down, making it convenient to drive the printing process.

[0032] As attached Figure 2 , 5 As shown, a second fastening screw 20 is inserted into the top of the lifting plate 17 near the molding platform 22. A second connecting seat 23 is fixedly connected to the top of the molding platform 22. A positioning slot 24 is opened on the top of the second connecting seat 23. The molding platform 22 is located directly above the liquid storage box 6. A first connecting seat 21 is fixedly connected to the bottom of the lifting plate 17 near the molding platform 22. The positioning slot 24 is adapted to the first connecting seat 21. The first connecting seat 21 is located in the middle of the positioning slot 24. One end of the molding platform 22 is in contact with the bottom wall of the second connecting seat 23. The first connecting seat 21 and the positioning slot 24 cooperate to facilitate the connection of the second connecting seat 23 to the lifting plate 17. By rotating the second fastening screw 20, the second connecting seat 23 is squeezed to facilitate the fixing of the installation position of the molding platform 22, which is convenient for installation, disassembly and use.

[0033] The working principle of this utility model is as follows: When using the 3D printing device for bioceramic bone scaffolds, the printing liquid is poured into the inside of the liquid storage box 6, the light source component 2 is started and the motor 19 is started to move the molding platform 22 downwards until the molding platform 22 moves into the inside of the liquid storage box 6. By cooperating with the molding platform 22 to gradually move upwards, the photopolymerization printing effect can be achieved.

[0034] When it is necessary to adjust the depth of the liquid storage box 6, rotate the nut 16 and the pressure plate 15 to remove the liquid storage box 6. Then, rotate the first fastening screw 11 to loosen the pressure on the inner cavity of the stabilizing slide groove 12. This allows the adjusting frame 8 to be pulled so that the second stabilizing slider 10 can slide inside the stabilizing slide groove 12, thereby adjusting the depth inside the liquid storage box 6. At the same time, the sealing ring 13 improves the sealing strength between the liquid storage box 6 and the adjusting frame 8. Then, rotate the first fastening screw 11 to press the inner cavity of the stabilizing slide groove 12 to easily fix the adjusted depth.

[0035] After printing is completed, rotating the second fastening screw 20 releases the pressure on the second connecting seat 23, allowing the bottom printed part to be moved out of the 3D printer body 1 via the sliding forming platform 22, facilitating disassembly and material removal, and improving the usage effect.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photopolymerization 3D printing device suitable for printing bioceramic bone scaffolds, comprising a 3D printer body (1), characterized in that: A light source assembly (2) is provided at the bottom of the inner cavity of the 3D printer body (1). An electric push rod (3) is provided at the bottom of the light source assembly (2). A first stabilizing slider (4) is symmetrically fixedly connected to both sides of the light source assembly (2). A stabilizing rod (5) is inserted into the middle of the first stabilizing slider (4). A liquid storage box (6) is provided at the top of the light source assembly (2). A support plate (7) is fixedly connected to the top of the liquid storage box (6). A stabilizing groove (12) is symmetrically opened around the liquid storage box (6). A sealing ring (13) is embedded on the outer surface of the bottom end of the liquid storage box (6). The bottom end of the 3D printer body (1) is fitted with an adjustment frame (8), the bottom cavity of the adjustment frame (8) is fixedly connected with a transparent plate (9), the inner cavity of the adjustment frame (8) is fixedly connected with a second stabilizing slider (10), and the two sides of the adjustment frame (8) are symmetrically inserted with first fastening screws (11); the two sides of the worktable of the 3D printer body (1) are symmetrically fixedly connected with fixing rods (14), the middle part of the fixing rods (14) is fitted with a pressure plate (15) and a nut (16), the top of the inner cavity of the 3D printer body (1) is provided with a lifting plate (17), and the bottom of one end of the lifting plate (17) is provided with a forming platform (22).

2. The photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 1, characterized in that: The liquid storage box (6) is embedded in the bottom of the worktable of the 3D printer body (1), the support plate (7) is located on the top of the worktable of the 3D printer body (1), and the transparent plate (9) corresponds to the light source assembly (2).

3. The photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 1, characterized in that: Two fixing rods (14) are set on both sides of the support plate (7), and the nut (16) is set on the top of the pressure plate (15), with one end of the pressure plate (15) located on the top of the support plate (7).

4. The photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 1, characterized in that: The second stabilizing slider (10) is adapted to the stabilizing groove (12). The second stabilizing slider (10) is located in the middle of the stabilizing groove (12). The sealing ring (13) is located at the bottom of the stabilizing groove (12). The wall of the sealing ring (13) is in contact with the inner wall of the adjusting frame (8).

5. The photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 1, characterized in that: A screw (18) is inserted at one end of the lifting plate (17) away from the forming platform (22). The screw (18) is threadedly connected to the lifting plate (17). A motor (19) is connected to the bottom end of the screw (18). The motor (19) is fixed in the middle of the 3D printer body (1).

6. The photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 1, characterized in that: The lifting plate (17) is fitted with a second fastening screw (20) at the top of one end near the molding platform (22). The top of the molding platform (22) is fixedly connected to a second connecting seat (23). The top of the second connecting seat (23) is provided with a positioning slot (24). The molding platform (22) is located directly above the liquid storage box (6).

7. A photopolymerization 3D printing device for printing bioceramic bone scaffolds according to claim 6, characterized in that: The bottom of the lifting plate (17) near the forming platform (22) is fixedly connected to a first connecting seat (21). The positioning slot (24) is adapted to the first connecting seat (21). The first connecting seat (21) is located in the middle of the positioning slot (24). One end of the forming platform (22) is in contact with the bottom wall of the second connecting seat (23).

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