A device and method for processing dental restorations based on 3D printing technology

Abstract

The application relates to the field of 3D printing technology of dental restorations, in particular to a dental restoration processing device and method based on 3D printing technology, which comprises a supporting table and further comprises: a driving mechanism installed on the supporting table and having a lifting end on which a lifting plate is installed; a vibrating mechanism installed on the lifting plate; a shaking mechanism installed on the supporting table and used for shaking resin material; the vibrating mechanism comprises a supporting assembly, a damping assembly, a spacing assembly, a blocking assembly, a bearing assembly and a supporting plate; the supporting plate is installed on the lifting plate and is lifted along with the lifting plate; the supporting assembly is installed on the supporting plate; the bearing assembly is installed at the bottom of the supporting assembly and is used for bearing the printed dental restoration; the elastic belt of the elastic member one drives the mounting plate to rapidly vibrate, so that the dental restoration at the bottom end of the bearing plate vibrates, the resin material remaining on the surface of the dental restoration is shaken off, and the remaining and waste of the resin material are avoided.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology for dental restorations, and specifically to a dental restoration processing device and method based on 3D printing technology. Background Technology

[0002] In dental treatment, 3D-printed dental prostheses are used to repair missing parts or entire teeth in the patient's mouth. Generally, the process is light-curing. Resin material is poured into a storage tank at the bottom of the 3D printing device. Then, UV light of a specific wavelength and intensity is selectively irradiated onto the surface of the light-cured resin through an LCD screen to complete the drawing work for one layer. The printing device at the bottom of the 3D printing device prints the resin material onto a carrier plate. Then, the carrier plate gradually rises, and the tooth is 3D printed on the inverted carrier plate. During the printing process, there are frequent lifting and lowering movements.

[0003] Chinese patent document CN219381633U discloses a photopolymer 3D printer. The photopolymer 3D printer includes a table, a resin container, and a detection component. The resin container includes a resin frame and a release film. The resin frame is detachably mounted on the table. The release film seals the opening of the resin frame near the table and forms a resin tank with the resin frame. The resin tank is used to hold the resin liquid. The detection component in the aforementioned prior art photopolymer 3D printer avoids the problem of incomplete model printing due to insufficient resin liquid, resulting in resin waste and wasting time and money for the user.

[0004] However, during the photopolymerization 3D printing process, resin material remains on the surface of the printed dental restoration or in some grooves. This resin material accumulates on the surface of the dental restoration, which not only causes some protrusions on the surface of the dental restoration, but also causes the resin material to be carried out with the dental restoration, resulting in waste of resin material. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a dental restoration processing device and method based on 3D printing technology.

[0006] The technical solution of the present invention: A dental restoration processing device based on 3D printing technology, including a support platform, and further comprising: The drive mechanism is mounted on the support platform, and a lifting plate is installed on the lifting end; Vibration mechanism, which is installed on the lifting plate; A shaking mechanism, which is mounted on a support platform and is used to shake the resin material; The vibration mechanism includes a support component, a damping component, a spacer component, a blocking component, a load-bearing component, and a support plate. The support plate is mounted on a lifting plate and rises and falls with the lifting plate. The support component is mounted on the support plate. The load-bearing component is mounted at the bottom of the support component and is used to support the printed dental restoration. The damping component is mounted on the support component and is used to cause the support component to vibrate the dental restoration on the load-bearing component after the spacer component rises. The spacer component is mounted on the support platform and is located on the rising path of the damping component. The blocking component is mounted on the support platform and is used to block the spacer component. When the drive mechanism causes the load-bearing component to rise briefly, the damping component is blocked and retracted by the spacer component, and then pushes the spacer component and the blocking component to rise separately, causing the damping component to vibrate the load-bearing component.

[0007] Preferably, the support assembly includes an elastic element, a mounting plate, and a mounting frame; the two ends of the elastic element are respectively connected to the support plate and the mounting plate; the bottom of the mounting plate is connected to the mounting frame, and the load-bearing assembly is installed inside the mounting frame.

[0008] Preferably, the damping assembly includes a round rod, a damping sleeve, and a damping ring; the round rod is mounted on the top of the mounting frame, the damping sleeve is mounted in the middle of the support plate, and the damping ring is mounted on the top of the round rod.

[0009] Preferably, the spacer assembly includes an elastic element two, a base plate, a reset plate, a lifting part, and multiple conical blocks one; the two ends of the elastic element two are respectively connected to the support platform and the base plate, the reset plate is installed at the bottom of the base plate and resets the base plate with the drive mechanism; the lifting part is installed on the base plate, and multiple conical blocks one are arrayed on the lifting part and blocked by the blocking assembly.

[0010] Preferably, the blocking assembly includes a linkage rod and a second conical block; the linkage rod is mounted on the shaking mechanism; the second conical block is mounted on the top of the linkage rod and blocks the first conical block.

[0011] Preferably, the support assembly includes a mounting block, a support plate, bolts, and a threaded ring; the mounting block is installed inside the mounting frame, and the threaded ring is installed on the mounting frame; the bolts are threadedly connected to the threaded ring and the mounting block; the support plate is installed at the bottom of the mounting block to support the printed dental restoration.

[0012] Preferably, the swaying mechanism includes a rectangular plate, an elastic element three, and a storage pool; the rectangular plate is mounted on a support platform, and the two ends of the elastic element three are respectively connected to the rectangular plate and the storage pool; the bearing plate is located inside the storage pool.

[0013] Preferably, the drive mechanism includes a drive device, a threaded rod, and a guide rod; the drive device is mounted on a support platform, and the output shaft of the drive device is connected to the threaded rod; the guide rod is mounted inside the support platform; the lifting plate is threaded onto the threaded rod and sleeved onto the guide rod.

[0014] This invention further provides a method for processing dental restorations based on 3D printing technology, using the aforementioned dental restoration processing device based on 3D printing technology, and includes the following specific steps: S1. Pour the liquid resin material into the shaking mechanism, and then the photocuring component in the support stage prints the resin material onto the carrier component; S2. The drive mechanism drives the support assembly to rise briefly. At this time, the top of the round rod is blocked by the spacer assembly, causing the damping ring to be inserted into the damping sleeve. The round rod pushes the spacer assembly upward. At this time, the blocking assembly is pushed open by the spacer assembly, causing the resin in the shaking mechanism to shake. S3. Simultaneously, the spacer assembly rises and separates from the damping assembly. The damping sleeve and damping ring then separate due to damping, generating significant kinetic energy that causes the dental restoration on the load-bearing assembly to vibrate, causing the resin material on the surface of the dental restoration to fall off.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: In the initial state, the lifting plate is located at the top of the threaded rod, and the elastic element two is in its shortest state. Then, the mounting block on the bearing plate is connected to the mounting frame by bolts to install and fix the bearing plate. Then, the drive equipment is started to drive the threaded rod to rotate and drive the lifting plate to descend along the guide rod. At this time, the engagement between the lifting plate and the reset plate pulls the bottom plate down. Then, through the engagement between the first conical block and the second conical block, the second conical block is pushed to move. The second conical block causes the storage pool at the bottom of the linkage rod to shake, thus realizing that after the resin material is poured into the storage pool, the resin material in the storage pool is evenly filled into the storage pool by shaking. Next, the carrier plate moves within the storage tank, followed by the light-curing of the threaded rod 3D printing. This allows the dental restoration to be printed layer by layer onto the carrier plate. Simultaneously, the lifting plate rises, causing the carrier plate to briefly rise. As the carrier plate rises, it moves the round rod upward, pushing the base plate. However, due to the obstruction of cone block one by cone block two, the lifting part cannot rise temporarily. Therefore, the lifting plate rises, but the mounting plate and mounting frame at the bottom of the round rod cannot rise. Consequently, the support plate pulls the elastic element one to extend, accumulating elastic potential energy. Subsequently, when the stop at the top of the round rod contacts the support plate and cannot rise further, it will... The upward push of the lifting part causes the first conical block and the second conical block to be misaligned. At this time, due to the gap of the first conical block and the elasticity of the second elastic element, the lifting part is driven to rise, thereby causing the lifting part to separate from the top of the round rod. Then, through the damping of the damping sleeve and the damping ring, after the lifting part is separated from the top of the round rod, the damping sleeve and the damping ring are misaligned, thereby causing the elasticity of the first elastic element to drive the mounting plate to rise and vibrate rapidly, thereby causing the dental restoration at the bottom of the support plate to vibrate, thereby shaking off the residual resin material on the surface of the dental restoration, thus avoiding the residue and waste of resin material. When cone block one and cone block two are misaligned, cone block two will be pushed to move, which in turn will cause the storage pool at the bottom of the linkage rod to shake, thereby shaking the resin material in the storage pool. This avoids problems such as local heat accumulation in the resin material due to photocuring printing, and eliminates the need to use a scraper to stir. Non-contact leveling is used to avoid physical interference. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the elastic element two proposed in this invention; Figure 3 This is a schematic diagram of the linkage rod proposed in this invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the base plate proposed in this invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Reference numerals: 1. Support platform; 2. Drive device; 3. Threaded rod; 4. Guide rod; 5. Lifting plate; 6. Support plate; 7. Elastic element one; 8. Mounting plate; 9. Mounting frame; 10. Round rod; 11. Damping sleeve; 12. Damping ring; 13. Elastic element two; 14. Base plate; 15. Reset plate; 16. Lifting part; 17. Conical block one; 18. Rectangular plate; 19. Elastic element three; 20. Storage pool; 21. Linkage rod; 22. Conical block two; 23. Mounting block; 24. Bearing plate; 25. Bolt; 26. Threaded ring. Detailed Implementation

[0017] Example 1, as Figures 1-6As shown, the present invention proposes a dental restoration processing device and method based on 3D printing technology, including a support platform 1, a drive mechanism, a vibration mechanism, and a shaking mechanism. The drive mechanism is mounted on the support platform 1, and a lifting plate 5 is mounted on the lifting end. The vibration mechanism is mounted on the lifting plate 5. The shaking mechanism is mounted on the support platform 1 and is used to shake the resin material. The vibration mechanism includes a support component, a damping component, a spacer component, a blocking component, a load-bearing component, and a support plate 6. The support plate 6 is mounted on the lifting plate 5 and rises and falls with the lifting plate 5. The support component is mounted on the support plate 6. The load-bearing component is mounted at the bottom of the support component and is used to carry the printed dental restoration. The damping component is mounted on the support component and is used to cause the support component to drive the dental restoration on the load-bearing component to vibrate after the spacer component rises. The spacer component is mounted on the support platform 1 and is located on the rising path of the damping component. The blocking component is mounted on the support platform 1 and is used to block the spacer component. When the drive mechanism drives the load-bearing component to rise briefly, the damping component is blocked and contracted by the spacer component, and then pushes the spacer component and the blocking component to rise separately, and the damping component drives the load-bearing component to vibrate.

[0018] The support assembly includes an elastic element 7, a mounting plate 8, and a mounting frame 9; the two ends of the elastic element 7 are connected to the support plate 6 and the mounting plate 8 respectively; the bottom of the mounting plate 8 is connected to the mounting frame 9, and the load-bearing assembly is installed inside the mounting frame 9; when the threaded rod 3 rotates, it causes the lifting plate 5 to rise briefly, and then the top of the round rod 10 is blocked. At this time, the mounting plate 8 cannot rise, while the elastic element 7 rises, thus stretching the elastic element 7. At this time, the elastic element 7 accumulates elastic potential energy due to its own elongation.

[0019] The damping assembly includes a round rod 10, a damping sleeve 11, and a damping ring 12. The round rod 10 is installed on the top of the mounting frame 9, the damping sleeve 11 is installed in the middle of the support plate 6, and the damping ring 12 is installed on the top of the round rod 10. A rectangular stop is installed at the top of the round rod 10. When the support plate 6 drives the round rod 10 to rise, the rectangular stop at the top of the round rod 10 is blocked by the bottom of the lifting part 16, which prevents the round rod 10 from rising further. Then, the damping ring 12 enters the damping sleeve 11, thereby damping the damping sleeve 11 and the damping ring 12, and temporarily limiting the elongated elastic element 7, so that the elastic element 7 will not elongate temporarily.

[0020] The spacing assembly includes an elastic element 13, a base plate 14, a reset plate 15, a lifting part 16, and multiple conical blocks 17. The two ends of the elastic element 13 are connected to the support platform 1 and the base plate 14, respectively. The reset plate 15 is installed at the bottom of the base plate 14 and resets the base plate 14 with the drive mechanism. The lifting part 16 is installed on the base plate 14, and multiple conical blocks 17 are arrayed on the lifting part 16 and blocked by the blocking assembly. There is a certain gap between the multiple conical blocks 17. When the damping sleeve 11 and the damping ring 12 are engaged, the damping sleeve 11 and the damping ring 12 cannot be separated temporarily, and the top of the round rod 10 contacts the support plate 6. Therefore, the support plate 6 will drive the round rod 10 to push the lifting part 16 upwards for a certain distance. Due to the gap between the conical blocks 17, the conical blocks 17 and the conical blocks 17 are separated. After separation, the elastic element 213 drives the lifting part 16 to rise, causing the next conical block 17 to be blocked by the conical block 22. At this time, the lifting part 16 separates from the top of the round rod 10. Then, the damping sleeve 11 and the damping ring 12 push the mounting plate 8 down due to the elasticity of the elastic element 17. Due to the accumulation of elastic potential energy of the elastic element 17, the mounting plate 8 can shake rapidly after the damping sleeve 11 and the damping ring 12 separate, thereby driving the bearing plate 24 to vibrate rapidly. Thus, when the bearing plate 24 rises to the top, the bearing plate 24 vibrates rapidly with a short amplitude, shaking off the resin material. Then, the lifting plate 5 drives the bearing plate 24 to descend again, thereby printing the next layer on the teeth on the bearing plate 24. This achieves vibration only when the bearing plate 24 rises, avoiding vibration when descending, which would affect the printing effect.

[0021] The blocking assembly includes a linkage rod 21 and a second conical block 22; the linkage rod 21 is mounted on the swaying mechanism; the second conical block 22 is mounted on the top of the linkage rod 21 and blocks the first conical block 17.

[0022] The support assembly includes a mounting block 23, a support plate 24, bolts 25, and a threaded ring 26. The mounting block 23 is installed inside the mounting frame 9, and the threaded ring 26 is installed on the mounting frame 9. The bolts 25 are threadedly connected to the threaded ring 26 and the mounting block 23. The support plate 24 is installed at the bottom of the mounting block 23 to support the printed dental restoration. The threaded connection between the bolts 25 and the threaded ring 26 enables quick assembly and disassembly of the support plate 24.

[0023] Example 2, as Figures 1-5 As shown, the present invention proposes a dental restoration processing device and method based on 3D printing technology. Compared with Embodiment 1, the shaking mechanism in this embodiment includes a rectangular plate 18, an elastic element 19, and a storage pool 20. The rectangular plate 18 is mounted on the support platform 1, and the two ends of the elastic element 19 are respectively connected to the rectangular plate 18 and the storage pool 20. The bearing plate 24 is located in the storage pool 20.

[0024] The drive mechanism includes a drive device 2, a threaded rod 3, and a guide rod 4; the drive device 2 is mounted on the support platform 1, and the output shaft of the drive device 2 is connected to the threaded rod 3; the guide rod 4 is mounted inside the support platform 1; the lifting plate 5 is threaded onto the threaded rod 3 and sleeved onto the guide rod 4.

[0025] Elastic component 1 (7), elastic component 2 (13), and elastic component 3 (19) are all composed of a telescopic rod and a spring, with the spring sleeved on the outer periphery of the telescopic rod.

[0026] Example 3, as Figures 1-6 As shown, the present invention proposes a dental restoration processing device and method based on 3D printing technology. The device, described in Example 1, includes the following specific steps: S1. The liquid resin material is poured into the shaking mechanism, and then the photocuring component in the support platform 1 prints the resin material onto the carrier component. S2. The drive mechanism drives the support assembly to rise briefly. At this time, the top of the round rod 10 is blocked by the spacer assembly, so that the damping ring 12 is inserted into the damping sleeve 11, and the round rod 10 pushes the spacer assembly upward. At this time, the blocking assembly is pushed open by the spacer assembly, causing the resin in the shaking mechanism to shake. S3. Simultaneously, the spacer assembly rises and separates from the damping assembly. The damping sleeve 11 and damping ring 12 are then misaligned due to damping, generating greater kinetic energy, which causes the dental restoration on the bearing assembly to vibrate, causing the resin material on the surface of the dental restoration to fall off.

[0027] In summary, in the present invention, the lifting plate 5 is initially positioned at the top. Then, the bearing plate 24 is inserted into the mounting frame 9. Next, the bolt 25 is screwed into the threaded ring 26 and the mounting block 23, and the resin material is poured into the storage tank 20. Then, the drive device 2 is started to rotate the threaded rod 3, which in turn drives the lifting plate 5, which is threaded to it, to descend along the axis of the threaded rod 3 and the guide rod 4. At this time, the descent of the lifting plate 5 pulls the reset plate 15 down, thereby pulling the bottom plate 14 down, and then pulling the lifting part 16 down. At this time, due to the setting of the first conical block 17, the first conical block 17 and the second conical block 22 are staggered, so that the first conical block 17 drives the second conical block 22 to move during the descent, and then drives the storage tank 20 to shake through the linkage rod 21, thereby making the resin material in the cavity of the storage tank 20 uniform.

[0028] Next, the carrier plate 24 is inserted into the storage tank 20. Simultaneously, the support platform 1 is activated to photopolymerize and print the resin material inside the storage tank 20 onto the carrier plate 24 layer by layer. After one layer is printed, the threaded rod 3 drives the lifting plate 5 to rise, which in turn drives the support plate 6 to rise. However, because the round rod 10 is blocked by the lifting part 16, the support plate 6 rises alone, causing the elastic element 7 to elongate and accumulate elastic potential energy. Then, the damping ring 12 is inserted into the damping sleeve 11. Through the damping of the damping sleeve 11 and the damping ring 12, the elastic element 7 is temporarily limited. Subsequently, the support plate 6 and the top of the round rod 10... Upon contact, the round rod 10 pushes the lifting part 16 upward, causing the conical block 17 and the conical block 22 on the lifting part 16 to be misaligned. Thus, through the pulling force of the elastic element 2 13, the lifting part 16 is driven to rise, causing the next conical block 17 to contact the conical block 22 and be blocked by the conical block 22. At this time, the top of the round rod 10 separates from the lifting part 16. Subsequently, the damping sleeve 11 and the damping ring 12 are misaligned due to the elasticity of the elastic element 7, releasing a large amount of kinetic energy instantly. This causes the bearing plate 24 at the bottom of the round rod 10 to vibrate slightly, shaking off the resin material on the surface of the dental restoration. At the same time, when the conical block 22 is pushed and misaligned by the conical block 17, the conical block 22 vibrates, which in turn causes the storage pool 20 at the bottom of the linkage rod 21 to shake, thereby shaking the resin material in the inner cavity of the storage pool 20 evenly.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A dental prosthesis processing device based on 3D printing technology, comprising a support platform (1), characterized in that, Also includes: The drive mechanism is mounted on the support platform (1) and the lifting plate (5) is mounted on the lifting end. Vibration mechanism, which is installed on the lifting plate (5); A shaking mechanism is mounted on a support platform (1) and is used to shake the resin material; The vibration mechanism includes a support component, a damping component, a spacer component, a blocking component, a load-bearing component, and a support plate (6); the support plate (6) is mounted on the lifting plate (5) and rises and falls with the lifting plate (5); the support component is mounted on the support plate (6); the load-bearing component is mounted at the bottom of the support component and is used to carry the printed dental prosthesis; the damping component is mounted on the support component and is used to cause the support component to drive the dental prosthesis on the load-bearing component to vibrate after the spacer component rises; the spacer component is mounted on the support platform (1) and is located on the rising path of the damping component; the blocking component is mounted on the support platform (1) and is used to block the spacer component; when the drive mechanism drives the load-bearing component to rise briefly, the damping component is blocked and contracted by the spacer component, and then pushes the spacer component and the blocking component to rise separately, and the damping component drives the load-bearing component to vibrate.

2. The dental restoration processing device based on 3D printing technology according to claim 1, characterized in that, The support components include an elastic element (7), a mounting plate (8), and a mounting frame (9); The two ends of the elastic element (7) are connected to the support plate (6) and the mounting plate (8) respectively; the bottom of the mounting plate (8) is connected to the mounting frame (9), and the load-bearing component is installed in the mounting frame (9).

3. The dental restoration processing device based on 3D printing technology according to claim 2, characterized in that, The damping assembly includes a round rod (10), a damping sleeve (11), and a damping ring (12). The round rod (10) is installed on the top of the mounting frame (9), the damping sleeve (11) is installed in the middle of the support plate (6), and the damping ring (12) is installed on the top of the round rod (10).

4. The dental restoration processing device based on 3D printing technology according to claim 1, characterized in that, The spacer assembly includes an elastic element (13), a base plate (14), a reset plate (15), a lifting part (16), and multiple conical blocks (17). The two ends of the elastic element 2 (13) are connected to the support platform (1) and the base plate (14) respectively. The reset plate (15) is installed at the bottom of the base plate (14) and resets the base plate (14) with the drive mechanism. The lifting part (16) is installed on the base plate (14), and multiple conical blocks 1 (17) are arrayed on the lifting part (16) and blocked by the blocking component.

5. The dental restoration processing device based on 3D printing technology according to claim 4, characterized in that, The blocking assembly includes a linkage rod (21) and a cone block (22); Linkage rod (21) is mounted on the swaying mechanism; cone block two (22) is mounted on the top of linkage rod (21) and blocks cone block one (17).

6. The dental restoration processing device based on 3D printing technology according to claim 2, characterized in that, The load-bearing components include a mounting block (23), a load-bearing plate (24), bolts (25), and a threaded ring (26); The mounting block (23) is installed inside the mounting frame (9), and the threaded ring (26) is installed on the mounting frame (9); the bolt (25) is threadedly connected to the threaded ring (26) and the mounting block (23); the support plate (24) is installed at the bottom of the mounting block (23) to support the printed dental prosthesis.

7. The dental restoration processing device based on 3D printing technology according to claim 6, characterized in that, The swaying mechanism includes a rectangular plate (18), an elastic element three (19), and a storage pool (20). A rectangular plate (18) is installed on a support platform (1), and the two ends of the elastic element three (19) are connected to the rectangular plate (18) and the storage pool (20) respectively; the bearing plate (24) is located inside the storage pool (20).

8. The dental restoration processing device based on 3D printing technology according to claim 1, characterized in that, The drive mechanism includes a drive device (2), a threaded rod (3), and a guide rod (4); The drive device (2) is installed on the support platform (1), and the output shaft of the drive device (2) is connected to the threaded rod (3); the guide rod (4) is installed inside the support platform (1); the lifting plate (5) is threaded onto the threaded rod (3) and sleeved onto the guide rod (4).

9. A method for processing dental restorations based on 3D printing technology, using the dental restoration processing apparatus based on 3D printing technology as described in claim 5, characterized in that, The specific steps include the following: S1. Pour the liquid resin material into the shaking mechanism, and then the photocuring component in the support platform (1) prints the resin material onto the carrier component. S2. The drive mechanism drives the support assembly to rise briefly. At this time, the top of the round rod (10) is blocked by the spacer assembly, so that the damping ring (12) is inserted into the damping sleeve (11), and the round rod (10) pushes the spacer assembly upward. At this time, the blocking assembly is pushed open by the spacer assembly, causing the resin in the shaking mechanism to shake. S3. Simultaneously, the spacer assembly rises and separates from the damping assembly. The damping sleeve (11) and damping ring (12) are then misaligned due to damping, generating greater kinetic energy, which causes the dental restoration on the bearing assembly to vibrate, causing the resin material on the surface of the dental restoration to fall off.

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