Photocuring 3D printer

Abstract

The invention relates to the technical field of 3D printing, in particular to a photocuring 3D printer which comprises a base, a lifting frame is fixedly mounted on the rear side of the top end of the base, and two fixing frames are fixedly mounted on one side of the base; resin liquid in the printing material groove is discharged into the liquid collecting box through the liquid discharging pipe, and then the side, provided with the liquid discharging hole, of the printing material groove is clamped into the inclined mounting frame, so that the liquid discharging hole is aligned to the position of the liquid leaking hole; at the moment, resin, attached to the surface of the inner wall, in the printing material groove flows into a liquid discharging hole under the action of gravity and is discharged into a liquid collecting box through a liquid leaking hole, and the situation that resin liquid is attached to the inner wall of the printing material groove and is difficult to clean is avoided; the problems that when the photocuring 3D printer is used, the resin liquid recovery efficiency is low due to the fact that the resin liquid is difficult to remove from a material groove, and when the resin liquid is cleaned, a release film is prone to being damaged, and the quality of finished products printed subsequently is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, in particular to a light-curing 3D printer. Background Art

[0002] 3D printing technology is a rapid prototyping technology. It is based on digital model files and uses powdered metal or plastic and other bondable materials to construct objects by stacking and accumulating them layer by layer. There are many types of molding technologies used by 3D printers, such as stereolithography (SLA), fused deposition modeling (FDM), and selective laser sintering (SLS).

[0003] Among them, for the existing photocuring molding technology, its implementation method is: through the light source to the photocurable material (such as photosensitive resin) surface, complete a layer of drawing work, then the lifting platform moves in the vertical direction to the height of a layer, and then solidifies another layer, so that layers are stacked to form a three-dimensional entity.

[0004] When using existing light-curing 3D printers, the resin liquid recovery efficiency is often low because it is difficult to remove the resin liquid from the material tank, and when cleaning the resin liquid, it is easy to damage the release film, affecting the quality of the subsequent printed products; therefore, it does not meet the existing needs. In response to this, we proposed a light-curing 3D printer. Summary of the invention

[0005] The purpose of the present invention is to provide a light-curing 3D printer to solve the problems mentioned in the above background technology that the light-curing 3D printer is often difficult to remove from the material tank, resulting in low resin liquid recovery efficiency, and when cleaning the resin liquid, it is easy to damage the release film, affecting the quality of the subsequent printed products.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a light-curing 3D printer, comprising a base, a lifting frame is fixedly installed on the rear side of the top of the base, two fixing frames are fixedly installed on one side of the base, the outer end of the fixing frame is fixedly connected to an inclined mounting frame, the surface of the inclined mounting frame is provided with a leakage hole, a liquid collecting box is slidably installed on the side of the base close to the inclined mounting frame, a handle is fixedly installed on the surface of the liquid collecting box, a slide groove is provided at a position of the base close to the liquid collecting box, the handle slides into the inside of the slide groove, a printing material trough is movably installed at the top of the base, and the printing material trough is provided with a drainage hole at the end corner position close to the inclined mounting frame.

[0007] Preferably, a mounting groove is provided on the top surface of the base, the printing material slot is movably inserted into the interior of the mounting groove, a drain pipe is movably installed between the two fixed frames, one end of the drain pipe is movably connected to the drain hole, and the bottom end of the drain pipe is located at the upper end of the liquid collecting tank.

[0008] Preferably, a spring groove is provided on the top surface of the printing material slot near the drainage hole, a movable rod is slidably installed inside the spring groove, a rotating plate is rotatably installed on the top end of the movable rod, a T-shaped rotating rod is fixedly installed on the bottom end of the rotating plate, the T-shaped rotating rod is rotatably inserted into the top surface of the movable rod, a fixed plate is fixedly installed on the outer surface of the movable rod near the spring groove, the fixed plate and the spring groove are connected by a compression spring, the compression spring enables the movable rod to completely seal the interior of the drainage hole when in a non-compressed state, and can drive the bottom end portion of the movable rod to move out of the interior of the drainage hole when in a compressed state.

[0009] Preferably, two guide rails are fixedly installed on the outer surface of the lifting frame, a screw rod is provided inside the surface of the lifting frame, a movable table is movably installed on the outer surface of the screw rod, both sides of the movable table are slidably installed on the surface of the guide rails, a fixed table is fixedly installed on the outer end of the movable table, a printing plate is fixedly installed on the bottom end of the fixed table, and the printing plate is movably inserted into the interior of the printing material slot.

[0010] Preferably, a support plate is fixedly mounted on the outer surface of the inclined mounting frame, the inner angle of the inclined mounting frame is consistent with the end angle of the printing material slot, and a filter screen is provided on the inner surface of the liquid collecting box.

[0011] Preferably, a limit plate is fixedly mounted on the top of the printing material slot, and the bottom surface of the rotating plate is in contact with the top surface of the limit plate.

[0012] Preferably, a servo motor is fixedly mounted on one side of the top of the base, the rotating shaft of the screw rod extends to the interior of the base, a gear box is provided under the screw rod and is connected to the output end of the gear box, and the output end of the servo motor extends to the interior of the base and is connected to the input end of the gear box.

[0013] Preferably, heat dissipation grilles are provided on both side surfaces of the base, and a release film is adhered to the inner surface of the printing material slot.

[0014] Preferably, a liquid inlet platform is movably installed on the other side of the top of the base, a liquid inlet pipe is provided on the outer surface of the liquid inlet platform, the liquid inlet pipe extends to the inside of the printing material tank, a connecting pipe is connected to the rear side of the liquid inlet platform, and a liquid storage tank is connected to the end of the connecting pipe.

[0015] Preferably, a blow box is fixedly mounted on the rear side of the lifting frame, a plastic bellows is connected to the side of the blow box close to the inclined mounting frame, and a blow head is movably mounted on the end of the plastic bellows.

[0016] The present invention cooperates with the inclined mounting frame and the leakage hole. When the device needs to clean the printing material slot, the resin liquid in the printing material slot can be discharged to the inside of the liquid collecting box through the drainage pipe, and then the printing material slot is pulled out from the inside of the mounting slot, and the side of the printing material slot provided with the drainage hole is inserted into the inside of the inclined mounting frame, so that the drainage hole is aligned with the position of the leakage hole. At this time, the resin attached to the inner wall surface of the printing material slot will flow into the inside of the drainage hole through the action of gravity, and be discharged to the inside of the liquid collecting box through the leakage hole, thereby avoiding the situation where the resin liquid adheres to the inner wall of the printing material slot and is difficult to clean.

[0017] The present invention cooperates with the plastic bellows and the blow head so that when the device places the printing material slot inside the inclined mounting frame, the plastic bellows can be moved to a position inside the printing material slot, and the blow head can be aligned with the resin liquid attached to the inner wall surface of the printing material slot. At this time, air is blown into the interior of the plastic bellows through the blow box, so that the resin liquid is blown to the position of the drainage hole through the blow head, thereby accelerating the discharge of the resin liquid and improving the recovery efficiency of the resin liquid.

[0018] The present invention cooperates with the movable rod and the rotating plate so that when the device is in use, when 3D printing is performed, the rotating plate can be rotated so that the surface of the rotating plate faces the side away from the limiting plate, so that the limiting plate cannot block the rotating plate. At this time, the movable rod will be subjected to the elastic potential energy of the compression spring and will drop and be stuck in the inside of the drainage hole, thereby sealing the drainage hole and preventing the resin liquid from flowing out of the printing material tank during 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure when the printing material tank of the present invention is located inside the mounting tank; Figure 3 This is a schematic diagram of the structure of the printing material tank of the present invention when it is located inside the inclined mounting frame; Figure 4 A sectional side view of the present invention as a whole; Figure 5 A cross-sectional front view of the present invention as a whole; Figure 6 For the present invention Figure 2 Schematic diagram of the local structure of part A; Figure 7 For the present invention Figure 4 Schematic diagram of the local structure of part B.

[0020] In the figure: 1. base; 2. printing material trough; 3. lifting frame; 4. guide rail; 5. screw rod; 6. movable table; 7. fixed table; 8. printing plate; 9. blowing box; 10. plastic bellows; 11. blowing head; 12. servo motor; 13. liquid inlet table; 14. liquid inlet pipe; 15. liquid storage tank; 16. connecting pipe; 17. heat dissipation grille; 18. release film; 19. installation slot; 20. liquid collecting box; 21. handle; 22. drain pipe; 23. fixed frame; 24. tilting installation frame; 25. support plate; 26. leakage hole; 27. limit plate; 28. drain hole; 29. ​​spring groove; 30. movable rod; 31. rotating plate; 32. T-shaped rotating rod; 33. compression spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figures 1 to 7 A light-curing 3D printer provided by the present invention comprises a base 1, a lifting frame 3 is fixedly installed on the rear side of the top of the base 1, two fixing frames 23 are fixedly installed on one side of the base 1, an outer end of the fixing frame 23 is fixedly connected with an inclined mounting frame 24, a surface of the inclined mounting frame 24 is provided with a leakage hole 26, a liquid collecting box 20 is slidably installed on one side of the base 1 close to the inclined mounting frame 24, a handle 21 is fixedly installed on the surface of the liquid collecting box 20, a slide groove is provided at a position of the base 1 close to the liquid collecting box 20, the handle 21 slides into the inside of the slide groove, a printing material slot 2 is movably installed at the top of the base 1, and a drainage hole 28 is provided at the end angle position of the printing material slot 2 close to the inclined mounting frame 24.

[0023] By cooperating with the inclined mounting frame 24 and the leakage hole 26, when the device needs to clean the printing material slot 2, the resin liquid in the printing material slot 2 can be first discharged to the inside of the collecting box 20 through the drainage pipe 22, and then the printing material slot 2 can be pulled out from the inside of the mounting slot 19, and the side of the printing material slot 2 provided with the drainage hole 28 is inserted into the inside of the inclined mounting frame 24, so that the drainage hole 28 is aligned with the position of the leakage hole 26. At this time, the resin attached to the inner wall surface of the printing material slot 2 will flow into the inside of the drainage hole 28 through the action of gravity, and be discharged to the inside of the collecting box 20 through the leakage hole 26, thereby avoiding the situation where the resin liquid adheres to the inner wall of the printing material slot 2 and is difficult to clean.

[0024] A mounting groove 19 is provided on the top surface of the base 1, and the printing material slot 2 is movably inserted into the mounting groove 19. A drain pipe 22 is movably installed between the two fixing frames 23, and one end of the drain pipe 22 is movably connected to the drain hole 28. The bottom end of the drain pipe 22 is located at the upper end of the liquid collecting box 20.

[0025] A spring groove 29 is provided on the top surface of the printing material slot 2 near the drainage hole 28, and a movable rod 30 is slidably installed inside the spring groove 29. A rotating plate 31 is rotatably installed on the top of the movable rod 30, and a T-shaped rotating rod 32 is fixedly installed on the bottom end of the rotating plate 31. The T-shaped rotating rod 32 is rotatably inserted into the top surface of the movable rod 30, and a fixed plate is fixedly installed on the outer surface of the movable rod 30 near the spring groove 29. The fixed plate and the spring groove 29 are connected by a compression spring 33. The compression spring 33 makes the movable rod 30 completely seal the inside of the drainage hole 28 when in a non-compressed state, and can drive the bottom end part of the movable rod 30 to move out of the inside of the drainage hole 28 when in a compressed state.

[0026] Two guide rails 4 are fixedly installed on the outer surface of the lifting frame 3, a screw rod 5 is provided inside the surface of the lifting frame 3, a movable platform 6 is movably installed on the outer surface of the screw rod 5, both sides of the movable platform 6 are slidably installed on the surface of the guide rails 4, a fixed platform 7 is fixedly installed on the outer end of the movable platform 6, a printing plate 8 is fixedly installed on the bottom end of the fixed platform 7, and the printing plate 8 is movably inserted into the interior of the printing material slot 2.

[0027] A support plate 25 is fixedly mounted on the outer surface of the inclined mounting frame 24 , the inner angle of the inclined mounting frame 24 is consistent with the end angle of the printing material slot 2 , and a filter screen is provided on the inner surface of the liquid collecting box 20 .

[0028] A limiting plate 27 is fixedly mounted on the top of the printing material slot 2 , and the bottom surface of the rotating plate 31 is in contact with the top surface of the limiting plate 27 .

[0029] Through the cooperation of the movable rod 30 and the rotating plate 31, when the device is in use, when 3D printing is performed, the rotating plate 31 can be rotated so that the surface of the rotating plate 31 faces the side away from the limiting plate 27, so that the limiting plate 27 cannot block the rotating plate 31. At this time, the movable rod 30 will be subjected to the elastic potential energy of the compression spring 33 and will drop and get stuck in the inside of the drainage hole 28, thereby sealing the drainage hole 28 to prevent the resin liquid from flowing out of the printing material tank 2 during 3D printing.

[0030] A servo motor 12 is fixedly installed on one side of the top of the base 1, the rotating shaft of the screw rod 5 extends to the inside of the base 1, a gear box is provided under the screw rod 5 and is connected to the output end of the gear box, and the output end of the servo motor 12 extends to the inside of the base 1 and is connected to the input end of the gear box.

[0031] Heat dissipation grilles 17 are provided on both side surfaces of the base 1 , and a release film 18 is adhered to the inner surface of the printing material slot 2 .

[0032] A liquid inlet platform 13 is movably installed on the other side of the top of the base 1. A liquid inlet pipe 14 is provided on the outer surface of the liquid inlet platform 13. The liquid inlet pipe 14 extends to the interior of the printing material tank 2. A connecting pipe 16 is connected to the rear side of the liquid inlet platform 13, and a liquid storage tank 15 is connected to the end of the connecting pipe 16.

[0033] A blow box 9 is fixedly mounted on the rear side of the lifting frame 3 , a plastic bellows 10 is connected to the side of the blow box 9 close to the inclined mounting frame 24 , and a blow head 11 is movably mounted on the end of the plastic bellows 10 .

[0034] Through the cooperation of the plastic bellows 10 and the blowing head 11, when the device places the printing material slot 2 inside the inclined mounting frame 24, the plastic bellows 10 can be moved to the position inside the printing material slot 2, and the blowing head 11 can be aligned with the resin liquid attached to the inner wall surface of the printing material slot 2. At this time, air is blown into the interior of the plastic bellows 10 through the blowing box 9, so that the resin liquid is blown to the position of the drainage hole 28 through the blowing head 11, thereby accelerating the discharge of the resin liquid and improving the recovery efficiency of the resin liquid.

[0035] When the light-curing 3D printer is in use, the printing tank 2 can be first placed in the installation slot 19, and the release film 18 can be pasted inside the printing tank 2. Then, the resin liquid in the liquid storage tank 15 is transported to the inside of the printing tank 2 through the connecting pipe 16 through the liquid inlet platform 13 and the liquid inlet pipe 14. At this time, the screw rod 5 can be controlled to rotate by the servo motor 12 to adjust the height position of the movable table 6 and the fixed table 7, and then the height position of the printing plate 8 is adjusted, so that the printing plate 8 is lowered to the inside of the printing tank 2, so as to perform 3D printing.

[0036] When printing is completed, when the device needs to clean the print material tank 2, the resin liquid in the print material tank 2 can be discharged to the inside of the collecting tank 20 through the drain pipe 22, and then the print material tank 2 can be pulled out from the inside of the mounting slot 19, and the side of the print material tank 2 provided with the drain hole 28 is inserted into the inside of the inclined mounting frame 24, so that the drain hole 28 is aligned with the position of the leakage hole 26. At this time, the resin attached to the inner wall surface of the print material tank 2 will flow into the inside of the drain hole 28 through the leakage hole 26, and be discharged to the inside of the collecting tank 20, thereby avoiding the situation where the resin liquid adheres to the inner wall of the print material tank 2 and is difficult to clean.

[0037] When the printing material slot 2 is placed inside the inclined mounting frame 24, the present invention can move the plastic bellows 10 to the position inside the printing material slot 2, and align the blowing head 11 with the resin liquid attached to the inner wall surface of the printing material slot 2. At this time, air is blown into the plastic bellows 10 through the blowing box 9, so that the resin liquid is blown to the position of the drainage hole 28 through the blowing head 11, thereby accelerating the discharge of the resin liquid and improving the recovery efficiency of the resin liquid.

[0038] When 3D printing is performed, the rotating plate 31 can be rotated so that the surface of the rotating plate 31 faces the side away from the limiting plate 27, so that the limiting plate 27 cannot block the rotating plate 31. At this time, the movable rod 30 will be subjected to the elastic potential energy of the compression spring 33 and drop into the inside of the drainage hole 28, thereby sealing the drainage hole 28 to prevent the resin liquid from flowing out of the printing material tank 2 during 3D printing.

[0039] When the resin liquid needs to be discharged, the rotating plate 31 can be rotated so that the surface of the rotating plate 31 faces the side close to the limiting plate 27, so that the limiting plate 27 blocks the rotating plate 31. At this time, the movable rod 30 cannot descend due to the obstruction of the rotating plate 31, and the resin liquid can flow out through the drainage hole 28, which is convenient for the recovery and treatment of the resin liquid.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A light-curing 3D printer, characterized in that: It includes a base, a lifting frame is fixedly installed on the rear side of the top of the base, two fixing frames are fixedly installed on one side of the base, the outer end of the fixing frame is fixedly connected with an inclined mounting frame, the surface of the inclined mounting frame is provided with a leakage hole, a liquid collecting box is slidably installed on the side of the base close to the inclined mounting frame, a handle is fixedly installed on the surface of the liquid collecting box, a slide groove is provided at a position of the base close to the liquid collecting box, the handle slides into the inside of the slide groove, a printing material slot is movably installed at the top of the base, and a drainage hole is provided at the end corner of the printing material slot close to the inclined mounting frame.

2. The light-curing 3D printer according to claim 1, characterized in that: A mounting groove is provided on the top surface of the base, and the printing material slot is movably inserted into the mounting groove. A drainage pipe is movably installed between the two fixing frames, one end of the drainage pipe is movably connected to the drainage hole, and the bottom end of the drainage pipe is located at the upper end of the liquid collecting box.

3. The light-curing 3D printer according to claim 1, characterized in that: A spring groove is provided on the top surface of the printing material slot near the drainage hole, and a movable rod is slidably installed inside the spring groove, and a rotating plate is rotatably installed on the top end of the movable rod, and a T-shaped rotating rod is fixedly installed on the bottom end of the rotating plate. The T-shaped rotating rod is rotatably inserted into the top surface of the movable rod, and a fixed plate is fixedly installed on the outer surface of the movable rod near the spring groove, and the fixed plate and the spring groove are connected by a compression spring. When the compression spring is in a non-compressed state, the movable rod completely seals the inside of the drainage hole, and when in a compressed state, the compression spring can drive the bottom end portion of the movable rod to move out of the inside of the drainage hole.

4. The light-curing 3D printer according to claim 1, characterized in that: Two guide rails are fixedly installed on the outer surface of the lifting frame, a screw rod is provided inside the surface of the lifting frame, a movable table is movably installed on the outer surface of the screw rod, both sides of the movable table are slidably installed on the surface of the guide rails, a fixed table is fixedly installed on the outer end of the movable table, a printing plate is fixedly installed on the bottom end of the fixed table, and the printing plate is movably inserted into the interior of the printing material slot.

5. The light-curing 3D printer according to claim 1, characterized in that: A support plate is fixedly mounted on the outer surface of the inclined mounting frame, the inner angle of the inclined mounting frame is consistent with the end angle of the printing material slot, and a filter screen is provided on the inner surface of the liquid collecting box.

6. The light-curing 3D printer according to claim 3, characterized in that: A limiting plate is fixedly mounted on the top of the printing material slot, and the bottom surface of the rotating plate is in contact with the top surface of the limiting plate.

7. The light-curing 3D printer according to claim 4, characterized in that: A servo motor is fixedly installed on one side of the top of the base, the rotating shaft of the screw rod extends to the inside of the base, a gear box is provided under the screw rod and is connected to the output end of the gear box, and the output end of the servo motor extends to the inside of the base and is connected to the input end of the gear box.

8. The light-curing 3D printer according to claim 1, characterized in that: Heat dissipation grilles are arranged on both side surfaces of the base, and a release film is pasted on the inner surface of the printing material slot.

9. The light-curing 3D printer according to claim 1, characterized in that: A liquid inlet platform is movably installed on the other side of the top of the base, and a liquid inlet pipe is provided on the outer surface of the liquid inlet platform. The liquid inlet pipe extends to the inside of the printing material tank. A connecting pipe is connected to the rear side of the liquid inlet platform, and a liquid storage tank is connected to the end of the connecting pipe.

10. The light-curing 3D printer according to claim 1, characterized in that: A blow box is fixedly installed on the rear side of the lifting frame, a plastic bellows is connected to the side of the blow box close to the inclined mounting frame, and a blow head is movably installed at the end of the plastic bellows.

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