Support plate for 3D printer

Abstract

The utility model discloses a kind of support plate for 3D printer, it is related to 3D printer technical field, including cabinet, the bottom wall of the cabinet is rotatably connected with shaft by rotating mechanism, the top surface of the shaft is installed with carousel, the top surface middle part of the carousel is installed with heating plate, the bottom surface of the carousel is installed with multiple electric telescopic rods, the utility model is when using, it is realized by shaft, rotating mechanism cooperation air cooling component, drive support disc slowly rotates, avoid fixed blow temperature difference problem, realize uniform cooling, reduce model warping and support plate deformation, heating plate is stabilized by heat disc Energy supply, guarantee printing adhesion effect, simultaneously, electric telescopic rod blocks heat transfer, semiconductor refrigeration piece and fan improve cooling rate, quick-release mechanism realizes support disc tool-free convenient disassembly, give consideration to cooling effect and operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, and in particular to a support plate for a 3D printer. Background Technology

[0002] 3D printers are devices that manufacture solid parts by depositing materials layer by layer based on digital model files. They are widely used in industrial design, consumer electronics, medical and other fields. Among them, FDM technology has become the mainstream due to its low cost and ease of operation. In FDM 3D printing, the support plate is the core component that supports the printing of the model. It needs to provide a flat and stable reference surface for the molten material to ensure that the first layer of the model is firmly attached, while suppressing the warping caused by the cooling and shrinkage of the material, which directly affects the model forming accuracy and surface quality. The existing support plate is installed on the heated bed. After printing, it needs to be cooled to a suitable temperature before the model can be removed. Since the support plate and the model retain a lot of heat after printing with materials such as PLA and ABS, natural cooling takes a long time. In order to shorten the waiting time, the industry generally adopts air cooling to accelerate cooling. A fan blows room temperature airflow to the support plate to reduce its surface temperature. However, in the existing air-cooling method, the fixed fan can only blow air in one direction, resulting in a temperature difference of 10-15℃ between the windward and leeward sides of the support plate, which can easily cause local warping of the model or micro-deformation of the support plate. In view of this, this application proposes a support plate for 3D printers. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a support plate for 3D printers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A support plate for a 3D printer includes a chassis. A rotating shaft is rotatably connected to the bottom wall of the chassis via a rotating mechanism. A turntable is mounted on the top surface of the rotating shaft. A heating plate is mounted in the center of the top surface of the turntable. Multiple electrically operated telescopic rods are mounted on the bottom surface of the turntable. A heat-conducting plate is mounted on the top of the multiple electric telescopic rods, and the bottom surface of the heat-conducting plate contacts the top surface of the heating plate. A support plate is mounted on the top surface of the heat-conducting plate via a quick-release mechanism. Ventilation seats are mounted on both outer sides of the chassis, and each ventilation seat contains an air-cooling component. Multiple heat dissipation holes are opened on the outer side of the chassis. A sealing door is rotatably connected to the side of the chassis opposite to the heat dissipation holes. A printing device is mounted on the top wall of the chassis.

[0005] Preferably, the rotating mechanism includes a drive motor, which is mounted on the bottom wall of the chassis. A drive gear is mounted on the outer side of the top output shaft of the drive motor, and a driven gear is mounted on the outer side of the rotating shaft. The drive gear and the driven gear mesh with each other.

[0006] Preferably, the quick-release mechanism includes multiple positioning slots, which are formed on the top surface of the heat-conducting plate. Multiple positioning posts are installed on the bottom surface of the support plate, and each positioning post is locked in a corresponding positioning slot. A second magnetic ring is installed on the bottom surface of the support plate, and a first magnetic ring is embedded on the top surface of the heat-conducting plate. The top surface of the first magnetic ring and the bottom surface of the second magnetic ring have opposite magnetic properties.

[0007] Preferably, each of the air-cooled components includes a dustproof grille, and each dustproof grille is installed on one side of the ventilation seat. Each ventilation seat contains a plurality of semiconductor cooling chips, and a fan is installed on the side of each ventilation seat away from the dustproof grille.

[0008] Preferably, heat dissipation fins are commonly installed at one end of each of the corresponding plurality of semiconductor cooling chips, and the pitch circle diameter of the driving gear is smaller than that of the driven gear.

[0009] Preferably, the outer side of the heat-conducting plate is provided with multiple grooves, a protective sleeve is installed on the bottom wall of the chassis, and both the drive gear and the driven gear are located inside the protective sleeve.

[0010] This utility model has the following beneficial effects: 1. This utility model achieves uniform cooling and stable support of the support plate through devices such as a rotating shaft, a rotating mechanism, a turntable, a heating plate, a heat-conducting plate, a support plate, and an air-cooling component. After printing, the rotating mechanism drives the rotating shaft to drive the turntable, the heat-conducting plate, and the support plate to rotate slowly and synchronously. With the air-cooling component on both sides blowing air, it avoids the temperature difference problem caused by the fixed fan blowing in one direction, so that the support plate is cooled evenly in all areas, effectively reducing local warping of the model or micro deformation of the support plate. At the same time, the heating plate provides stable energy to the support plate through the heat-conducting plate, ensuring the material adhesion effect during printing.

[0011] 2. This utility model achieves rapid cooling and convenient assembly / disassembly of the support plate through devices such as an electric telescopic rod, a fan, a semiconductor cooling chip, heat dissipation fins, and a quick-release mechanism. The electric telescopic rod can lift the heat conduction plate and support plate away from the heating plate, blocking heat transfer. The semiconductor cooling chip, together with the fan, generates cold air, and the heat dissipation fins ensure its heat dissipation efficiency and improve the cooling rate. The quick-release mechanism, with the help of positioning pins, positioning slots, and magnetic rings, enables the support plate to be quickly fixed and disassembled without the need for tools, greatly improving operational efficiency. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of a support plate for a 3D printer proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the chassis of a support plate for a 3D printer proposed in this utility model; Figure 3 This is a schematic diagram of the rotating mechanism of a support plate for a 3D printer proposed in this utility model. Figure 4 This is a schematic diagram of a quick-release mechanism for a support plate for a 3D printer proposed in this utility model. Figure 5 This is a schematic diagram of the air-cooled component structure of a support plate for a 3D printer proposed in this utility model.

[0013] In the diagram: 1. Chassis; 2. Ventilation seat; 3. Sealed door; 4. Printing device; 5. Heat dissipation hole; 6. Protective cover; 7. Turntable; 8. Heat conduction plate; 9. Support plate; 10. Groove; 11. Drive motor; 12. Drive gear; 13. Shaft; 14. Driven gear; 15. Electric telescopic rod; 16. Heating plate; 17. Positioning groove; 18. Positioning column; 19. First magnetic ring; 20. Second magnetic ring; 21. Dustproof grille; 22. Semiconductor cooling chip; 23. Heat dissipation fins; 24. Fan. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] This utility model provides a technical solution: such as Figure 1-5 As shown, a support plate for a 3D printer includes a chassis 1. The bottom wall of the chassis 1 is rotatably connected to a rotating shaft 13 via a rotating mechanism. A turntable 7 is mounted on the top surface of the rotating shaft 13. A heating plate 16 is mounted in the middle of the top surface of the turntable 7. Multiple electric telescopic rods 15 are mounted on the bottom surface of the turntable 7. A heat-conducting plate 8 is mounted on the top of the multiple electric telescopic rods 15. The bottom surface of the heat-conducting plate 8 is in contact with the top surface of the heating plate 16. A support plate 9 is mounted on the top surface of the heat-conducting plate 8 via a quick-release mechanism. Ventilation seats 2 are mounted on both outer sides of the chassis 1. Each ventilation seat 2 contains an air-cooling component. Multiple heat dissipation holes 5 are opened on the outer side of the chassis 1. A sealing door 3 is rotatably connected to the side of the chassis 1 opposite to the heat dissipation holes 5. A printing device 4 is mounted on the top wall of the chassis 1. Multiple electric telescopic rods 15 facilitate the lifting of the support plate 9 and the heat conduction plate 8 during the cooling of the support plate 9 and the molded part, thereby preventing the support plate 9 and the heat conduction plate 8 from continuously receiving heat transfer from the heating plate 16. In conjunction with the rotating mechanism and turntable 7, the support plate 9 is rotated, which makes the air cooling more uniform. Compared with fixed air cooling, the cooling rate of the molded part and the support plate 9 is better, thereby effectively reducing the waiting time.

[0016] Furthermore, the rotating mechanism includes a drive motor 11, and the drive motor 11 is mounted on the bottom wall of the housing 1. A drive gear 12 is mounted on the outer side of the top output shaft of the drive motor 11, and a driven gear 14 is mounted on the outer side of the rotating shaft 13. The drive gear 12 and the driven gear 14 mesh with each other. It should be noted that the drive motor 11 is a conical rotor motor. After power is cut off, the output shaft can automatically lock, thereby ensuring that the driven gear 14 is fixed in position, and thus keeping the support plate 9 fixed in position.

[0017] Furthermore, the quick-release mechanism includes multiple positioning slots 17, which are formed on the top surface of the heat-conducting plate 8. Multiple positioning posts 18 are installed on the bottom surface of the support plate 9, and each positioning post 18 is locked in the corresponding positioning slot 17. A second magnetic ring 20 is installed on the bottom surface of the support plate 9, and a first magnetic ring 19 is embedded on the top surface of the heat-conducting plate 8. The top surface of the first magnetic ring 19 has the opposite magnetism to the bottom surface of the second magnetic ring 20. The support plate 9 can be quickly inserted and removed by the positioning slot 17 and the positioning post 18, and the first magnetic ring 19 and the second magnetic ring 20 increase the attraction between the support plate 9 and the heat conduction plate 8, thus maintaining the rotational stability of the support plate 9.

[0018] Furthermore, each air-cooled component includes a dustproof grille 21, and each dustproof grille 21 is installed on one side of the ventilation seat 2. Each ventilation seat 2 contains a plurality of semiconductor cooling chips 22, and each ventilation seat 2 has a fan 24 installed on the side away from the dustproof grille 21.

[0019] Furthermore, heat dissipation fins 23 are installed at one end of each of the corresponding multiple semiconductor cooling chips 22 to facilitate heat dissipation of the semiconductor cooling chips 22. The pitch circle diameter of the drive gear 12 is smaller than that of the driven gear 14 to ensure that the turntable 7 rotates smoothly and slowly.

[0020] Furthermore, multiple grooves 10 are provided on the outer side of the heat conduction plate 8, and a protective sleeve 6 is installed on the bottom wall of the chassis 1. The drive gear 12 and the driven gear 14 are both located inside the protective sleeve 6. The protective sleeve 6 effectively protects the normal meshing operation of the drive gear 12 and the driven gear 14, and the grooves 10 facilitate the user to place or remove the support plate 9.

[0021] This utility model provides a support plate for a 3D printer. The specific working principle is as follows: First, the support plate 9 is placed on the heat-conducting plate 8 through the cooperation of the positioning post 18 and the positioning groove 17. The first magnetic ring 19 and the second magnetic ring 20 attract each other to achieve rapid fixation of the support plate 9. During printing, the drive motor 11 is in a power-off locked state, the support plate 9 remains stationary, and the heating plate 16 provides stable heat to the support plate 9 through the heat conduction plate 8 to ensure that the first layer of printing material adheres firmly. Then, printing is performed through the printing device 4. After printing is completed, the electric telescopic rod 15 is activated to lift the heat conduction plate 8 and the support plate 9, so that they are separated from the heating plate 16 and heat transfer is blocked. At the same time, the drive motor 11 works, and through the meshing of the drive gear 12 and the driven gear 14, it drives the rotating shaft 13 to rotate, so that the turntable 7, the heat conduction plate 8 and the support plate 9 rotate slowly and synchronously. At this time, the fan 24 inside the ventilation seat 2 starts, and the semiconductor cooling chip 22 generates cold air, which is filtered by the dustproof grille 21 and blown onto the rotating support plate 9 to achieve uniform and rapid cooling. After cooling, the groove 10 makes it easy for the user to hold and remove the support plate 9 after cooling. The support plate 9 can be quickly disassembled by separating the positioning post 18 from the positioning groove 17. The protective sleeve 6 prevents debris from getting caught in the gears during meshing, and the heat dissipation holes 5 assist in heat dissipation inside the chassis 1. The overall structure takes into account printing stability, cooling efficiency, and ease of operation.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A support plate for a 3D printer, comprising a chassis (1), characterized in that, The bottom wall of the chassis (1) is rotatably connected to a rotating shaft (13) via a rotating mechanism. A turntable (7) is installed on the top surface of the rotating shaft (13). A heating plate (16) is installed in the middle of the top surface of the turntable (7). Multiple electric telescopic rods (15) are installed on the bottom surface of the turntable (7). A heat-conducting plate (8) is installed at the top of the multiple electric telescopic rods (15). The bottom surface of the heat-conducting plate (8) is in contact with the top surface of the heating plate (16). A support plate (9) is installed on the top surface of the heat-conducting plate (8) via a quick-release mechanism. Ventilation seats (2) are installed on both sides of the chassis (1). A wind-cooling component is installed in each ventilation seat (2). Multiple heat dissipation holes (5) are opened on the outside of the chassis (1). A sealing door (3) is rotatably connected to the side of the chassis (1) opposite to the heat dissipation holes (5). A printing device (4) is installed on the top wall of the chassis (1).

2. The support plate for a 3D printer according to claim 1, characterized in that, The rotating mechanism includes a drive motor (11), and the drive motor (11) is mounted on the bottom wall of the housing (1). A drive gear (12) is mounted on the outer side of the top output shaft of the drive motor (11), and a driven gear (14) is mounted on the outer side of the rotating shaft (13). The drive gear (12) meshes with the driven gear (14).

3. A support plate for a 3D printer according to claim 2, characterized in that, The quick-release mechanism includes multiple positioning slots (17), and the multiple positioning slots (17) are opened on the top surface of the heat conduction plate (8). Multiple positioning posts (18) are installed on the bottom surface of the support plate (9), and each positioning post (18) is locked in the corresponding positioning slot (17). A second magnetic ring (20) is installed on the bottom surface of the support plate (9), and a first magnetic ring (19) is embedded on the top surface of the heat conduction plate (8). The top surface of the first magnetic ring (19) and the bottom surface of the second magnetic ring (20) have opposite magnetic properties.

4. A support plate for a 3D printer according to claim 3, characterized in that, Each of the air-cooled components includes a dust grille (21), and each dust grille (21) is mounted on one side of a ventilation seat (2). Each ventilation seat (2) contains a plurality of semiconductor cooling chips (22), and a fan (24) is mounted on the side of each ventilation seat (2) away from the dust grille (21).

5. A support plate for a 3D printer according to claim 4, characterized in that, Each of the corresponding semiconductor cooling chips (22) has a heat dissipation fin (23) installed at one end. The pitch circle diameter of the drive gear (12) is smaller than that of the driven gear (14).

6. A support plate for a 3D printer according to claim 5, characterized in that, The heat-conducting plate (8) has multiple grooves (10) on its outer side. A protective sleeve (6) is installed on the bottom wall of the chassis (1), and the drive gear (12) and the driven gear (14) are both located inside the protective sleeve (6).

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