3D printing denture sand blasting device
By introducing a dynamic adjustment mechanism of a protective transparent film into the 3D printed denture sandblasting device, the problem of wear on the observation window during sandblasting is solved, ensuring the visibility and light transmittance of the operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU KONOD MEDICAL TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-15
AI Technical Summary
Common 3D printed denture sandblasting devices lack a protective viewing window adjustment function, which makes the surface of the viewing window glass easily abraded by the flying particles during the sandblasting process, affecting light transmission and operational visibility.
A 3D-printed dental prosthesis sandblasting device was designed, comprising a protective shell, a sand collection box, a front panel, a handle, a snap-fit plate, a hollow shaft, a protective transparent film, a limiting plate, and an L-shaped fixing plate. By pulling the protective transparent film, the hollow shaft is rotated, thereby achieving dynamic adjustment of the protective transparent film. This covers the observation window to prevent fine sand leakage and automatically replaces undamaged areas when worn.
It achieves dynamic adjustment of the protective window to prevent fine sand from leaking out, maintain the clarity of the observation window, avoid glass wear, and ensure operational visibility.
Smart Images
Figure CN224239264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental sandblasting technology, and in particular to a 3D printed dental sandblasting device. Background Technology
[0002] 3D printed dentures are a technology that uses powdered metal or plastic and other bondable materials to construct objects layer by layer based on digital model files. After the 3D printed dentures are manufactured, the products need to undergo post-processing techniques such as washing, curing, sandblasting and polishing. These post-processing techniques can improve the mechanical properties of the product surface, thereby improving the product's fatigue resistance and increasing its adhesion to coatings. Sandblasting technology uses high-pressure compressed air as power to spray very fine, hard sand particles at high speed onto the product surface.
[0003] Common 3D printed denture sandblasting devices only include sandblasting function, which can sandblast dentures, but lack the function of adjusting the protective window. This cannot guarantee the visibility of the window, and fine sand can easily collide with the observation glass, causing the glass surface to be worn, thus making the glass blurry and affecting the visibility of the window.
[0004] Therefore, in view of the lack of protective window adjustment function in the above-mentioned 3D printed denture sandblasting device, the sandblasting process is prone to abrasion of the observation window glass surface, resulting in reduced light transmittance and affecting the visibility of operation, there is an urgent need to design a new type of 3D printed denture sandblasting device. Utility Model Content
[0005] To overcome the common problem of 3D printed denture sandblasting devices lacking protective window adjustment function, and the fact that flying particles during sandblasting can easily abrade the surface of the observation window glass, resulting in reduced light transmittance and affecting operational visibility.
[0006] The technical solution of this utility model is as follows: a 3D printed denture sandblasting device, including a bottom shell; it also includes a protective shell, a sand collection box, a front panel, a handle, a snap-fit plate, a hollow shaft, a protective transparent film, a limiting plate, and an L-shaped fixing plate. The protective shell is set on the top of the bottom shell, and a sand collection box is set inside the bottom shell. A front panel is set on the front side of the sand collection box, and a handle is set at the center of the front side of the front panel. Two snap-fit plates are set at the top of the left and right sides of the protective shell. A hollow shaft is set on the top of the protective shell corresponding to the snap-fit plate. A protective transparent film is fitted around the hollow shaft. Two L-shaped fixing plates are set on the left and right ends of the front side of the protective shell corresponding to the position of the protective transparent film. A limiting plate is welded between the two L-shaped fixing plates.
[0007] Preferably, by pulling one end of the protective transparent film to drive the hollow shaft to rotate, and then passing one end of the protective transparent film between the protective shell and the limiting plate, the protective transparent film is pulled down until one end of the protective transparent film moves to the handle. Then, one end of the protective transparent film is wrapped around the handle. In this way, the protective transparent film can block the observation window to prevent fine sand from leaking out, but it does not affect the observation. When the protective transparent film in front of the observation window is hit by fine sand and the light transmittance decreases, the protective transparent film can be pulled down again until the part of the protective transparent film that has not been hit by fine sand is back in front of the observation window. This realizes the function of adjusting the protective window, which solves the problem of common 3D printed denture sandblasting devices, which only have the function of sandblasting and can sandblast dentures, but lack the function of adjusting the protective window. They cannot guarantee the visibility of the window, and fine sand is prone to hitting the observation glass, causing the glass surface to be worn, thus making the glass blurry and affecting the visibility of the window.
[0008] Preferably, the left and right ends of the hollow shaft are rotatably connected to two snap-fit plates, and a limit ring is fitted on the right side of the hollow shaft.
[0009] Preferably, one end of the protective transparent film passes through the space between the protective shell and the limiting plate and is located on the front side of the front panel.
[0010] Preferably, the top of the bottom shell has several sand-draining holes at equal intervals, and the four sides of the bottom of the bottom shell are provided with support feet.
[0011] Preferably, an observation window is provided on the front side of the protective shell corresponding to the position of the limiting plate, and a protective rubber strip is provided on the front side of the protective shell corresponding to the position of the observation window.
[0012] Preferably, two hand slots are provided at the front of the left and right sides of the protective shell.
[0013] Preferably, two anti-wear sleeves are provided on the front ends of the left and right sides of the protective shell, corresponding to the positions of the hand slots.
[0014] The beneficial effects of this utility model are:
[0015] 1. By traction of the end of the protective transparent film, the hollow shaft is driven to rotate, causing the film to pass through the gap between the protective shell and the limiting plate and extend axially. After continuous downward traction, the end of the protective transparent film reaches the grip area and is fixed to the grip surface. At this time, the protective transparent film completely covers the outside of the observation window, forming a dynamic barrier that can block sandblasting overflow without hindering visual observation. When the area of the protective transparent film in front of the observation window experiences light transmission attenuation due to sand impact, the protective transparent film can be pulled downward again, so that the clean section of the film that is not worn can be automatically replaced to the corresponding area of the observation window, thereby realizing the dynamic adjustment function of the protective window. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the 3D printed denture sandblasting device of this utility model.
[0017] Figure 2 The diagram shown is a schematic representation of the bottom shell structure of the 3D printed denture sandblasting device of this utility model.
[0018] Figure 3 The diagram shown is a schematic representation of the sand collection box structure of the 3D printed denture sandblasting device of this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the protective shell structure of the 3D-printed denture sandblasting device of this utility model.
[0020] Figure 5 The diagram shown is a schematic representation of the observation, protection, and adjustment components of the 3D-printed denture sandblasting device of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Bottom shell; 2. Protective shell; 3. Sand collection box; 4. Front panel; 5. Handle; 6. Snap-fit plate; 7. Hollow shaft; 8. Protective transparent film; 9. Limiting plate; 10. L-shaped fixing plate; 11. Limiting ring; 12. Sand leakage hole; 13. Support foot; 14. Observation window; 15. Protective rubber strip; 16. Reach groove; 17. Anti-wear sleeve. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment of a 3D printed denture sandblasting device, including a base shell 1; it also includes a protective shell 2, a sand collection box 3, a front panel 4, a handle 5, a snap-fit plate 6, a hollow shaft 7, a protective transparent film 8, a limiting plate 9, and an L-shaped fixing plate 10. The protective shell 2 is provided on the top of the base shell 1, and the sand collection box 3 is provided inside the base shell 1. The front panel 4 is provided on the front side of the sand collection box 3, and the handle 5 is provided at the center of the front side of the front panel 4. Two snap-fit plates 6 are provided on the top of the left and right sides of the protective shell 2. A hollow shaft 7 is provided on the top of the protective shell 2 corresponding to the snap-fit plates 6. The hollow shaft 7 is covered with a protective transparent film 8. Two L-shaped fixing plates 10 are provided on the left and right ends of the front side of the protective shell 2 corresponding to the positions of the protective transparent film 8. A limiting plate 9 is welded between the two L-shaped fixing plates 10. By pulling one end of the protective transparent film 8, the hollow shaft 7 is rotated, and then the one end of the protective transparent film 8 is pulled from the protective shell 2. The protective transparent film 8 passes between the protective shell 2 and the limiting plate 9, and then continues to be pulled down until one end of the protective transparent film 8 moves to the handle 5. Then, one end of the protective transparent film 8 is wrapped around the handle 5. In this way, the protective transparent film 8 can block the observation window 14 to prevent fine sand from leaking out, but it does not affect the observation. When the protective transparent film 8 located in front of the observation window 14 is hit by fine sand and the light transmittance decreases, the protective transparent film 8 can be pulled down until the part of the protective transparent film 8 that has not been hit by fine sand is back in front of the observation window 14. This realizes the function of adjusting the protective window, which solves the problem of common 3D printed denture sandblasting devices that only have the sandblasting function and can sandblast dentures, but lack the function of adjusting the protective window. They cannot guarantee the visibility of the window, and fine sand is prone to hitting the observation glass, which will cause wear on the glass surface, making the glass blurry and affecting the visibility of the window.
[0024] Please see Figures 2-5 In this embodiment, the left and right ends of the hollow shaft 7 are rotatably connected to two snap-fit plates 6 respectively. A limit ring 11 is fitted on the right side of the hollow shaft 7. The hollow shaft 7 is rotated by pulling one end of the protective transparent film 8. One end of the protective transparent film 8 passes through the protective shell 2 and the limit plate 9 and is located on the front side of the front panel 4. The protective transparent film 8 blocks the observation window 14 to prevent fine sand from leaking out, but does not affect the observation. Several sand leakage holes 12 are opened at equal intervals on the top of the bottom shell 1. Support feet 13 are provided on the four sides of the bottom of the bottom shell 1. During the sandblasting operation, the fine sand in the protective shell 2 falls down to the top of the bottom shell 1 and is discharged into the sand collection box 3 through the sand leakage holes 12.
[0025] Please see Figures 1-5In this embodiment, an observation window 14 is provided on the front side of the protective shell 2 corresponding to the position of the limiting plate 9. A protective rubber strip 15 is provided on the front side of the protective shell 2 corresponding to the position of the observation window 14. The sandblasting situation inside the protective shell 2 can be observed through the observation window 14. Two hand slots 16 are provided on the front ends of the left and right sides of the protective shell 2. Hands can be inserted into the interior of the protective shell 2 through the hand slots 16. Two anti-wear sleeves 17 are provided on the front ends of the left and right sides of the protective shell 2 corresponding to the positions of the hand slots 16. The anti-wear sleeves 17 can prevent the hands from rubbing against the hand slots 16 and getting injured.
[0026] During operation, the hollow shaft 7 is driven to rotate by pulling the end of the protective transparent film 8, so that the film passes through the gap between the protective shell 2 and the limiting plate 9 and extends axially. After continuous downward pulling, the end of the protective transparent film 8 reaches the area of the handle 5 and is fixed to the surface of the handle 5. At this time, the protective transparent film 8 completely covers the outside of the observation window 14 to form a dynamic barrier, which can block the sandblasting overflow without hindering visual observation. When the area of the protective transparent film 8 in front of the observation window 14 experiences light transmission attenuation due to sand impact, the protective transparent film 8 can be pulled downward again to automatically replace the clean section of the film that is not worn with the corresponding area of the observation window 14, thereby realizing the dynamic adjustment function of the protective window.
[0027] Through the above steps, by pulling one end of the protective transparent film 8 to drive the hollow shaft 7 to rotate, and then passing one end of the protective transparent film 8 between the protective shell 2 and the limiting plate 9, and then continuing to pull the protective transparent film 8 downward until one end of the protective transparent film 8 moves to the handle 5, and then wrapping one end of the protective transparent film 8 around the handle 5, the observation window 14 can be blocked by the protective transparent film 8 to prevent fine sand from leaking out, but without affecting the observation. When the protective transparent film 8 located in front of the observation window 14 is hit by fine sand and the light transmittance decreases, the protective transparent film 8 can be pulled downward until the part of the protective transparent film 8 that has not been hit by fine sand is back in front of the observation window 14. This realizes the function of adjusting the protective window, which solves the problem of common 3D printed denture sandblasting devices that only have the sandblasting function and can sandblast dentures, but lack the function of adjusting the protective window, cannot guarantee the visibility of the window, and are prone to fine sand hitting the observation glass, causing the glass surface to be worn, thus making the glass blurry and affecting the visibility of the window.
Claims
1. A 3D printed denture sandblasting device, comprising a base shell (1); characterized in that: It also includes a protective shell (2), a sand collection box (3), a front panel (4), a handle (5), a snap-fit plate (6), a hollow shaft (7), a protective transparent film (8), a limiting plate (9), and an L-shaped fixing plate (10). The top of the bottom shell (1) is provided with a protective shell (2), the inside of the bottom shell (1) is provided with a sand collection box (3), the front side of the sand collection box (3) is provided with a front panel (4), the center of the front side of the front panel (4) is provided with a handle (5), the top of the left and right sides of the protective shell (2) is provided with two snap-fit plates (6), the top of the protective shell (2) is provided with a hollow shaft (7) corresponding to the snap-fit plate (6), the hollow shaft (7) is covered with a protective transparent film (8), the left and right ends of the front side of the protective shell (2) are provided with two L-shaped fixing plates (10) corresponding to the protective transparent film (8), and a limiting plate (9) is welded between the two L-shaped fixing plates (10).
2. The 3D printed denture sandblasting device according to claim 1, characterized in that: The left and right ends of the hollow shaft (7) are rotatably connected to two snap-fit plates (6), and a limit ring (11) is fitted on the right side of the hollow shaft (7).
3. The 3D printed denture sandblasting device according to claim 1, characterized in that: One end of the protective transparent film (8) passes through the protective shell (2) and the limiting plate (9) and is located on the front side of the front panel (4).
4. The 3D printed denture sandblasting device according to claim 1, characterized in that: The top of the bottom shell (1) has several sand-draining holes (12) at equal intervals, and the four sides of the bottom of the bottom shell (1) are provided with support feet (13).
5. The 3D printed denture sandblasting device according to claim 1, characterized in that: An observation window (14) is provided on the front side of the protective shell (2) corresponding to the position of the limiting plate (9), and a protective rubber strip (15) is provided on the front side of the protective shell (2) corresponding to the position of the observation window (14).
6. The 3D printed denture sandblasting device according to claim 1, characterized in that: The protective shell (2) has two hand slots (16) on the front ends of the left and right sides.
7. The 3D printed denture sandblasting device according to claim 6, characterized in that: Two anti-wear sleeves (17) are provided on the front ends of the left and right sides of the protective shell (2) corresponding to the positions of the hand slot (16).