A model polishing device

Abstract

This utility model discloses a model polishing device, including a polishing table and a housing installed at the bottom of the polishing table. The polishing table is equipped with an arc-shaped polishing mechanism. The arc-shaped polishing mechanism includes a drive motor, a worm gear, a rotating shaft, a worm wheel, a set of eccentric wheels, a chuck, a rotating bushing, and a polishing roller. The beneficial effects of this utility model are that by providing an arc-shaped polishing mechanism on the polishing table, and using a drive motor to rotate the polishing roller while simultaneously performing reciprocating lifting motion, it facilitates the arc-shaped polishing of dental models and can quickly remove surface imperfections, thereby achieving a smooth and glossy surface.

Description

Technical Field

[0001] This utility model relates to the field of polishing technology, specifically a model polishing device. Background Technology

[0002] Dental models are fundamental tools for dental treatment, teaching, and research. Their fabrication must follow standardized procedures to ensure accuracy and reliability, including preliminary preparation, impression taking, model pouring, and post-processing. Model pouring involves mixing plaster powder and water in a specific ratio, stirring until a paste is formed, and then slowly pouring it into the impression. A vibrator is used to eliminate air bubbles, ensuring the material fills every detail. Resin materials are poured using an injection method, and their curing time is shorter than that of plaster (approximately 30 minutes to 2 hours), making them suitable for high-precision requirements.

[0003] After demolding, the model needs to be sanded or polished to trim the edges and remove excess material, ensuring a smooth surface and accurate occlusion. Existing model polishing equipment generally uses a flat polishing disc, which requires constant manual adjustment of the model's position during polishing, making it impossible to achieve rounded polishing and affecting the polishing effect. Utility Model Content

[0004] To address the above deficiencies, this invention provides a model grinding device to solve the problem of grinding the arc of oral models.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A model polishing device includes a polishing table and a housing installed at the bottom of the polishing table, wherein the polishing table is provided with an arc polishing mechanism;

[0007] The arc grinding mechanism includes a drive motor, a worm gear, a rotating shaft, a worm wheel, a set of eccentric wheels, a chuck, a rotating sleeve, and a grinding roller. The drive motor is installed on the bottom left side of the housing, with its rotating end facing vertically upward. The worm gear is installed on the rotating end of the drive motor. The rotating shaft is movably installed on the right side of the housing. The worm wheel is installed at the center of the rotating shaft and meshes with the worm gear. A set of eccentric wheels is installed at both ends of the rotating shaft. The right end of the chuck is hinged to the inner wall of the housing and is located above the worm wheel. The rotating sleeve is movably fitted onto the upper end of the worm gear, with its upper end extending out of the housing. The grinding roller is installed on the upper end of the rotating sleeve.

[0008] Furthermore, a negative pressure adsorption mechanism is provided on the sanding table. The negative pressure adsorption mechanism includes a dust collection box, a dust collection pipe, a ring-shaped dust collection hood, and several negative pressure suction holes. The dust collection box is located on one side of the housing, the dust collection pipe is inserted into the right end of the dust collection box, the ring-shaped dust collection hood is embedded in the sanding table and its bottom is connected to the dust collection pipe, and several negative pressure suction holes are evenly distributed on the ring-shaped dust collection hood. The negative pressure adsorption mechanism can adsorb the dust generated during sanding and reduce dust pollution.

[0009] Furthermore, the dust collection box has an air outlet at the left end, a fan is installed inside the dust collection box, a dust filter is installed at the front end of the fan, and a cleaning port is provided at the top right end of the dust collection box. When the fan is working, it creates negative pressure inside the dust collection box, and dust is adsorbed through the dust collection pipe, the annular dust collection hood, and several negative pressure suction holes. The dust filter is used to filter the dust in the air inside the dust collection box, and the filtered air can be discharged through the air outlet. The dust on the right side of the dust collection box can be cleaned by opening the cleaning port.

[0010] Furthermore, the annular dust cover has a circular hole at its center that corresponds to the rotating bushing, which facilitates the lifting and lowering movement of the rotating bushing.

[0011] Furthermore, a set of eccentric wheels is hinged to the actuating pawl via a set of connecting rods. When the set of eccentric wheels rotates, the actuating pawl is pulled back and forth via the set of connecting rods.

[0012] Furthermore, the bottom of the rotating bushing is provided with a deflecting ring, and the left end of the deflecting jaw is movably engaged in the deflecting ring through a set of sliders. The left end of the deflecting jaw deflects the deflecting ring through a set of sliders, thereby causing the rotating bushing to move up and down.

[0013] Furthermore, a set of slide bars is provided on both sides of the upper end of the worm gear, and a set of corresponding slide grooves are opened on both sides inside the rotating bushing to facilitate the lifting and lowering movement of the rotating bushing.

[0014] This utility model provides a model polishing device with the following advantages: by setting an arc polishing mechanism on the polishing table, and using a drive motor to drive the polishing roller to rotate while performing reciprocating lifting motion, it is convenient to polish the arc of the oral cavity model and can quickly remove surface defects, thereby enabling the product to achieve surface flatness and smoothness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a model polishing device according to the present invention.

[0016] Figure 2 This is a schematic diagram of the arc grinding mechanism of this utility model.

[0017] Figure 3 This is a top view of the grinding table described in this utility model.

[0018] Figure 4 This is a schematic diagram of the negative pressure adsorption mechanism of this utility model.

[0019] In the diagram: 1. Grinding table; 2. Housing; 3. Drive motor; 4. Worm gear; 5. Shaft; 6. Worm wheel; 7. Eccentric wheel; 8. Actuating gripper; 9. Rotating bushing; 10. Grinding roller; 11. Dust collection box; 12. Dust collection pipe; 13. Annular dust collection hood; 14. Negative pressure suction hole; 15. Air outlet; 16. Fan; 17. Impurity filter; 18. Cleaning port; 19. Round hole; 20. Connecting rod; 21. Actuating ring; 22. Actuating ring. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Please see Figures 1 to 4 As shown, this application embodiment provides a model grinding device, including a grinding table 1 and a housing 2 installed at the bottom of the grinding table 1. The grinding table 1 is provided with an arc grinding mechanism. The arc grinding mechanism includes a drive motor 3, a worm gear 4, a rotating shaft 5, a worm wheel 6, a set of eccentric wheels 7, a chuck 8, a rotating sleeve 9, and a grinding roller 10. The drive motor 3 is installed on the bottom left side of the housing 2, with its rotating end facing vertically upward. The worm gear 4 is installed on the rotating end of the drive motor 3. The rotating shaft 5 is movably installed on the right side of the housing 2 through a mounting seat. The worm wheel 6 is installed at the center of the rotating shaft 5 and meshes with the worm gear 4. A set of eccentric wheels 7 are installed at both ends of the rotating shaft 5. The right end of the chuck 8 is hinged to the inner wall of the housing 2 and is located above the worm wheel 6. The rotating sleeve 9 is movably fitted on the upper end of the worm gear 4, with its upper end extending out of the housing 2. The grinding roller 10 is installed on the upper end of the rotating sleeve 9.

[0022] In this embodiment, the drive motor 3 first drives the rotating bushing 9 and the upper grinding roller 10 to rotate via the worm gear 4. At the same time, the worm gear 4 drives the rotating shaft 5 to rotate via the worm wheel 6. The rotating shaft 5 pulls the actuating gripper 8 to reciprocate up and down via a set of eccentric wheels 7 and a set of connecting rods 20. The actuating gripper 8 drives the rotating bushing 9 to move up and down, thereby realizing that the grinding roller 10 rotates while performing reciprocating lifting and lowering motion, which is convenient for the arc grinding and polishing of the oral cavity model and can quickly remove surface defects, so that the product can achieve surface flatness and smoothness. The grinding roller 10 is fixed to the upper end of the rotating bushing 9 by a locking nut, which is a detachable structure for easy replacement.

[0023] In some embodiments, a negative pressure adsorption mechanism is provided on the grinding table 1; the negative pressure adsorption mechanism includes a dust collection box 11, a dust collection pipe 12, an annular dust collection hood 13 and a plurality of negative pressure suction holes 14. The dust collection box 11 is located on one side of the housing 2, the dust collection pipe 12 is inserted into the right end of the dust collection box 11, the annular dust collection hood 13 is embedded in the grinding table 1 and its bottom is connected to the dust collection pipe 12, and a plurality of negative pressure suction holes 14 are evenly opened on the annular dust collection hood 13.

[0024] and in conjunction with the appendix Figure 3 and attached Figure 4 As shown, during the polishing process of the oral cavity model, the dust generated is drawn into the annular dust hood 13 through several negative pressure suction holes 14, and finally into the dust collection box 11 through the dust collection pipe 12, thereby reducing dust pollution.

[0025] In some embodiments, the dust collection box 11 has an air outlet 15 at the left end, a fan 16 is installed inside the dust collection box 11, a dust filter 17 is installed at the front end of the fan 16, and a cleaning port 18 is provided at the top right end of the dust collection box 11. When the fan 16 is working, it creates a negative pressure inside the dust collection box 11, and the dust is adsorbed through the dust collection pipe 12, the annular dust collection hood 13, and several negative pressure suction holes 14. The dust filter 17 is used to filter the dust in the air inside the dust collection box 11, and the filtered air can be discharged through the air outlet 15. The dust on the right side inside the dust collection box 11 can be cleaned by opening the cleaning port 18.

[0026] In some embodiments, the annular dust cover 13 has a circular hole 19 at its center that corresponds to the rotating bushing 9, which facilitates the lifting and lowering movement of the rotating bushing 9.

[0027] In some embodiments, a set of eccentric wheels 7 are hinged to the actuating pawl 8 via a set of connecting rods 20. When the set of eccentric wheels 7 rotates, the actuating pawl 8 is pulled to reciprocate through the set of connecting rods 20.

[0028] In some embodiments, a toggle ring 21 is provided at the bottom of the rotating sleeve 9. The left end of the toggle gripper 8 is movably engaged in the toggle ring 21 through a set of sliders 22. The left end of the toggle gripper 8 toggle the toggle ring 21 through the set of sliders 22, thereby causing the rotating sleeve 9 to move up and down. When the rotating sleeve 9 rotates, the toggle gripper 8 and the set of sliders 22 do not rotate.

[0029] In some embodiments, a set of slide bars are provided on both sides of the upper end of the worm gear 4, and a set of corresponding slide grooves are opened on both sides of the inner side of the rotating bushing 9 to facilitate the lifting and lowering movement of the rotating bushing 9.

[0030] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A model polishing device comprising a polishing table (1) and a housing (2) mounted at the bottom of the polishing table (1), characterized in that, The grinding table (1) is provided with an arc grinding mechanism; The arc grinding mechanism includes a drive motor (3), a worm (4), a rotating shaft (5), a worm wheel (6), a set of eccentric wheels (7), a chuck (8), a rotating bushing (9), and a grinding roller (10). The drive motor (3) is installed on the bottom left side of the housing (2), with the rotating end facing vertically upward. The worm (4) is installed on the rotating end of the drive motor (3). The rotating shaft (5) is movably installed on the right side of the housing (2). The worm wheel (6) is installed at the center of the rotating shaft (5) and meshes with the worm (4). A set of eccentric wheels (7) is installed at both ends of the rotating shaft (5). The right end of the chuck (8) is hinged to the inner wall of the housing (2) and located above the worm wheel (6). The rotating bushing (9) is movably fitted on the upper end of the worm (4) and extends out of the housing (2). The grinding roller (10) is installed on the upper end of the rotating bushing (9).

2. A model polishing device according to claim 1, wherein The grinding table (1) is equipped with a negative pressure adsorption mechanism; The negative pressure adsorption mechanism includes a dust collection box (11), a dust collection pipe (12), an annular dust collection hood (13), and several negative pressure suction holes (14). The dust collection box (11) is located on one side of the housing (2). The dust collection pipe (12) is inserted into the right end of the dust collection box (11). The annular dust collection hood (13) is embedded in the grinding table (1) and its bottom is connected to the dust collection pipe (12). Several negative pressure suction holes (14) are evenly opened on the annular dust collection hood (13).

3. A model sanding device according to claim 2, wherein, The dust collection box (11) has an air outlet (15) on the left end, a fan (16) is installed inside the dust collection box (11), a filter screen (17) is installed at the front end of the fan (16), and a cleaning port (18) is provided at the top right end of the dust collection box (11).

4. The model polishing device according to claim 2, characterized in that, The annular dust cover (13) has a circular hole (19) at its center that corresponds to the rotating bushing (9).

5. The model polishing device according to claim 1, characterized in that, A set of eccentric wheels (7) are hinged to a set of connecting rods (20) and a lever pawl (8).

6. The model polishing device according to claim 1, characterized in that, The bottom of the rotating bushing (9) is provided with a toggle ring (21), and the left end of the toggle gripper (8) is movably engaged in the toggle ring (21) through a set of sliders (22).

7. The model polishing device according to claim 1, characterized in that, A set of slide bars is provided on both sides of the upper end of the worm (4), and a set of corresponding slide grooves are opened on both sides inside the rotating bushing (9).

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