A device for removing residual plaster from a denture

Abstract

The present application relates to the technical field of denture processing, and particularly relates to a denture residual plaster removing device, which comprises a frame body and a back-shaped frame fixed between two sides in the frame body, a three-axis moving machine is arranged on the frame body, a hollow shell is rotatably connected to the moving part of the three-axis moving machine, and a driving motor is installed on the moving part of the three-axis moving machine. The present application makes the spray pipe close to the denture by the three-axis moving machine, then starts the external air pump to discharge air into the hollow shell, the hollow shell discharges air into the spray pipe, the spray pipe sprays air to form a high-speed airflow to clean the plaster on the denture first, then the plug rod blocks the air outlet end of the spray pipe, the n-shaped plugging plate stops blocking the air jet pipe, air is sprayed through the air jet pipe, the air drives the inclined plate to rotate, so that the grid cylinder drives the brush to rotate, the brush rotation cooperates with the high-speed airflow to clean the plaster in the small gap on the denture, and the plaster on the denture is completely cleaned, thereby improving the cleaning effect and safety.

Description

Technical Field

[0001] This invention relates to the field of dental prosthesis processing technology, and in particular to a device for removing residual plaster from dental prostheses. Background Technology

[0002] In the field of denture fabrication technology, the denture manufacturing process often involves the creation and finishing of plaster models. As a crucial foundation for denture fabrication, the smoothness and accuracy of the plaster model's surface have a vital impact on the final denture quality. However, during the finishing process of the plaster model, a large amount of plaster residue is often generated. This residue not only affects the aesthetics and comfort of the denture but may also interfere with subsequent processing, necessitating the removal of plaster from the denture.

[0003] Chinese Patent CN114145872B discloses a dental prosthesis residual plaster removal machine, including a supporting base plate, a front-to-back moving mechanism, a dental prosthesis placement device, a lifting mechanism, a swinging mechanism, a rotating motor, and a high-pressure jet device. The lifting mechanism is mounted on the supporting base plate, the swinging mechanism is mounted on the lifting mechanism, and the high-pressure jet device is mounted on the rotating motor. The front-to-back moving mechanism includes a guide groove, a limiting slider, a drive motor, a drive screw, and a drive slider. The lifting mechanism includes a guide rod bracket, a lifting screw, a driven wheel, a lifting motor, a drive wheel, a conveyor belt, and a lifting mechanism. The slider, the swing mechanism includes a linear motor slide rail, a linear motor mover worktable, a support cover, a limiting rotating ring, a rotating base, a driven bevel gear, a swing motor, a driving bevel gear and a rotating shaft. Although the above patent can remove plaster from dentures by high-pressure airflow, relying solely on the impact force of the airflow is difficult to effectively remove adhesive plaster attached to the small gaps, inner crown proximal surfaces or groove structures of dentures, affecting the cleaning effect. In order to improve the cleaning effect, existing solutions often increase the air pressure to enhance the impact force, but high-pressure airflow can easily cause deformation or breakage of the thin-walled structure of dentures, affecting the safety of dentures.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, a device for removing residual plaster from dentures is proposed, which can use airflow and brushes to completely remove plaster from dentures, thereby improving the removal effect and safety. Summary of the Invention

[0005] To overcome the limitations of relying solely on airflow impact force to effectively remove adhesive plaster adhering to the small gaps, inner crown proximal surfaces, or groove structures of dentures, thus affecting cleaning efficiency, existing solutions often increase air pressure to enhance impact force. However, high-pressure airflow can easily cause deformation or breakage of the thin-walled structure of dentures, affecting denture safety. This invention provides a denture residual plaster removal device that can utilize airflow and a brush to thoroughly remove plaster from dentures, improving both cleaning efficiency and safety.

[0006] This invention is achieved through the following technical solution:

[0007] A device for removing residual plaster from dentures includes a frame and a U-shaped frame fixed between the two sides of the frame. A three-axis moving mechanism is mounted on the frame, and a hollow shell is rotatably connected to the moving part of the three-axis moving mechanism. A drive motor is mounted on the moving part of the three-axis moving mechanism, and the output shaft end of the drive motor is fixedly connected to the shaft of the hollow shell. The device also includes a slidable nozzle that passes through the bottom of the hollow shell for spraying air to remove plaster from the denture. A cylinder is fixedly connected to the top of the hollow shell, and the end of the cylinder's telescopic rod is fixedly connected to the end of the nozzle. A rotating assembly is mounted on the hollow shell. The denture has a grid tube with brushes fixedly attached at even intervals along the circumference on its outer surface. An inclined plate is fixedly attached at even intervals along the circumference on the inner surface of the grid tube. Air jets are symmetrically fixed to the outer surface of the hollow shell, with the air outlet of the jets facing the inclined plates. The jets spray air onto the inclined plates, causing them to rotate. The inclined plates then rotate the grid tube, which in turn rotates the brushes, allowing the brushes to thoroughly remove plaster from the denture. A sealing assembly is installed between the hollow shell and the jets to seal the jets. A limiting assembly is installed on the U-shaped frame to limit the denture's movement.

[0008] Further explanation: The sealing assembly includes an n-shaped blocking plate fixedly fitted onto the nozzle. The front and rear sides of the n-shaped blocking plate are arc-shaped and fit against the inner side of the hollow shell. The n-shaped blocking plate corresponds to the jet pipe and is used to seal the jet pipe. An n-shaped plate is fixedly connected between the two sides inside the hollow shell. The n-shaped plate slides through the nozzle. A blocking rod located in the middle of the inner side of the nozzle is fixedly connected to the n-shaped plate and is used to seal the outlet end of the nozzle.

[0009] Further explanation: The limiting component includes an electromagnetic plate fixed to the inner side of the U-shaped frame, with limiting rods evenly spaced and slidably connected to the electromagnetic plate. The outermost limiting rod contacts the inner side of the U-shaped frame, and a connecting spring connects the limiting rod to the electromagnetic plate. A clamping component is provided on the limiting rod for clamping and fixing the denture.

[0010] Further explanation: The clamping assembly includes airbags that are fixedly inserted around the circumference of the limiting rod at even intervals, for clamping and fixing the denture. An air supply pipe connected to the airbags is fixedly inserted through the limiting rod.

[0011] Further explanation: the dental prosthesis residual plaster removal device also includes a collection component, which includes an n-shaped rod symmetrically fixed to the top of the frame. The n-shaped rod is made of iron, and magnetic sleeves are symmetrically slidably mounted on the n-shaped rods. A U-shaped plate is fixed between the magnetic sleeves, and a transparent sealing cover is fixed between the U-shaped plate and the top of the n-shaped rod to seal the frame. A movable plate is slidably connected to the bottom of the frame, and a breathable collection bag is fixedly connected to the movable plate to collect the removed plaster. A blowing component is provided between the frame and the U-shaped plate to blow the removed plaster into the frame.

[0012] To further explain, the collection component also includes a handle that is fixed to the movable plate.

[0013] Further explanation: The blowing assembly includes an air blowing pipe fixed to the inside of the molded plate to blow air out to blow the removed plaster. An air extraction frame located directly below the breathable collection bag is fixedly connected to the bottom of the frame. An air blowing pump is installed on the frame. The air outlet of the air blowing pump is connected to a hose. The end of the hose passes through the molded plate and is connected to the air blowing pipe. The air extraction end of the air blowing pump is fixedly connected to the air extraction frame.

[0014] To further explain, the dental prosthesis residual plaster removal device also includes imaging detectors installed on both sides of the hollow shell, and the imaging detectors are electrically connected to the drive motor through a control module.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The nozzle is brought close to the denture by a three-axis moving machine. Then, the external air pump is started to discharge air into the hollow shell. The hollow shell discharges the air into the nozzle, and the nozzle sprays the air out to form a high-speed airflow to remove the plaster on the denture. Then, the plug rod blocks the air outlet of the nozzle, and the N-shaped plug plate stops and seals the air jet pipe. The air is then sprayed out through the air jet pipe. The air pushes the inclined plate to rotate, so that the grid cylinder drives the brush to rotate. The rotation of the brush and the high-speed airflow work together to remove the plaster in the small gaps on the denture, thus thoroughly removing the plaster from the denture, thereby improving the cleaning effect and safety.

[0017] 2. Through the action of the limiting rod and the airbag, multiple dentures can be limited. Then the airbag clamps and fixes the denture base, thus completing the fixation of the denture. This can prevent the denture from moving and affecting the removal of plaster, thereby ensuring the stability of the denture.

[0018] 3. With the help of the collection component, the plaster that is sprayed out during the cleaning process can be blocked, and the cleaned plaster can be blown into the frame. The plaster inside the frame falls into the breathable collection bag and is collected, which can prevent the cleaned plaster from spraying into the surrounding area and affecting the working environment, thereby ensuring a good working environment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the hollow shell, drive motor, and nozzle of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the grid tube and brush of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the cylinder and nozzle of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the inclined plate and jet pipe of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the n-type blocking plate of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the n-type plate and the plug rod of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the limiting component of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the airbag and air supply tube of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the components used in this invention.

[0029] Figure 11 This is a three-dimensional structural diagram of the magnetic sleeve and air blowing tube of the present invention.

[0030] Figure 12 This is a three-dimensional structural diagram of the detector of the present invention.

[0031] In the diagram: 1. Frame, 2. U-shaped frame, 3. Three-axis moving machine, 4. Hollow shell, 5. Drive motor, 6. Nozzle, 7. Cylinder, 8. Grid cylinder, 9. Brush, 10. Inclined plate, 11. Jet pipe, 12. N-shaped blocking plate, 121. N-shaped plate, 122. Blocking rod, 13. Electromagnetic plate, 131. Limiting rod, 132. Connecting spring, 133. Airbag, 134. Air supply pipe, 14. N-shaped rod, 141. U-shaped plate, 1411. Magnetic sleeve, 142. Transparent sealing cover, 143. Movable plate, 1431. Handle, 144. Breathable collection bag, 145. Air pump, 146. Hose, 147. Suction frame, 148. Air pipe, 15. Camera detector. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0033] Example: A device for removing residual plaster from dentures, please refer to [link / reference]. Figures 1-7 As shown, the device includes a frame 1 and a U-shaped frame 2 fixed between the front and rear sides of the frame 1. A three-axis moving machine 3 is installed on the top of the frame 1. A hollow shell 4 is rotatably connected to the moving part of the three-axis moving machine 3. An air inlet pipe for air discharge is installed on the right side of the top of the hollow shell 4. A drive motor 5 is installed on the left side of the moving part of the three-axis moving machine 3. The output shaft end of the drive motor 5 is fixedly connected to the left side shaft of the hollow shell 4. The device also includes a nozzle 6, a cylinder 7, a grid cylinder 8, a brush 9, a ramp 10, an air jet pipe 11, a sealing assembly, and a limiting assembly. The nozzle 6 is slidably inserted through the middle of the bottom of the hollow shell 4. The nozzle 6 can spray air to remove plaster from the denture. A slotted hole is opened on the upper part of the nozzle 6. A cylinder 7 is fixedly inserted through the middle of the top of the hollow shell 4. The end of the telescopic rod of the cylinder 7 is fixedly connected to the top of the nozzle 6. Next, a grid tube 8 is rotatably mounted on the lower outer side of the hollow shell 4. Brushes 9 are fixedly attached to the outer side of the grid tube 8 at even intervals along the circumference. Inclined plates 10 are fixedly attached to the inner side of the grid tube 8 at even intervals along the circumference. Air jet pipes 11 are symmetrically fixed to the lower outer side of the hollow shell 4, with the air outlet of the air jet pipe 11 facing the inclined plate 10. The air jet pipe 11 is used to spray air onto the inclined plate 10. The air pushes the inclined plate 10 to rotate, which in turn drives the grid tube 8 to rotate. The grid tube 8 drives the brushes 9 to rotate, so that the brushes 9 can completely remove the plaster on the denture. A sealing component is provided between the hollow shell 4 and the spray pipe 6. When the sealing component is in operation, it can seal the spray pipe 6 and the air jet pipe 11. A limit component is provided on the U-shaped frame 2. When the limit component is in operation, it can limit the denture.

[0034] Please see Figure 6 and Figure 7 As shown, the sealing assembly includes an n-shaped blocking plate 12, an n-shaped plate 121, and a blocking rod 122. The n-shaped blocking plate 12 is fixedly fitted on the upper part of the outer side of the nozzle 6. The front and rear sides of the n-shaped blocking plate 12 are arc-shaped and fit against the inner side of the hollow shell 4. The n-shaped blocking plate 12 corresponds to the jet pipe 11 and can seal the jet pipe 11. The n-shaped plate 121 is fixed between the upper parts of the left and right sides inside the hollow shell 4. The n-shaped plate 121 slides through the nozzle 6. The blocking rod 122 is fixedly connected to the middle of the top of the n-shaped plate 121. The blocking rod 122 is located in the middle of the inner side of the nozzle 6. When the nozzle 6 moves upward and contacts the blocking rod 122, the blocking rod 122 can seal the outlet end of the nozzle 6.

[0035] Please see Figure 8 and Figure 9 As shown, the limiting assembly includes an electromagnetic plate 13, limiting rods 131, connecting springs 132, and a clamping assembly. The electromagnetic plate 13 is fixedly connected to the lower inner side of the U-shaped frame 2. The limiting rods 131 are slidably connected to the electromagnetic plate 13 at even intervals. The outermost ring of limiting rods 131 contacts the inner side of the U-shaped frame 2. A connecting spring 132 is connected between the lower part of the limiting rod 131 and the top of the electromagnetic plate 13. A clamping assembly is provided on the limiting rod 131. When the clamping assembly is in operation, it can clamp and fix the denture. The clamping assembly includes an airbag 133 and an air supply pipe 134. Four airbags 133 are fixedly connected to the upper part of the limiting rod 131 at even intervals along the circumference. When the airbags 133 inflate, they can clamp and fix the denture. An air supply pipe 134 is fixedly connected to the middle part of the limiting rod 131. The upper part of the air supply pipe 134 is connected to the airbag 133.

[0036] Initially, all air supply pipes 134 are connected to an external air supply channel. The air inlet pipe on the hollow shell 4 is connected to the air pump. First, the denture that needs plaster removal is placed on the limiting rod 131. Then, the denture is pushed downwards, causing the limiting rod 131 to move downwards. The corresponding connecting spring 132 is compressed. When the limiting rod 131 moves downwards to its maximum stroke, the downward movement of the denture is stopped. At this time, the base of the denture corresponds to the surrounding limiting rods 131, and the electromagnetic plate 13 can be activated. The electromagnetic plate 13 uses magnetic force to hold and fix the limiting rod 131, limiting the denture. At this time, the three-axis moving machine 3 is activated to drive the hollow shell 4 to move in three axes. The hollow shell 4, through the cylinder 7, moves the nozzle 6 to directly above and close to the denture, and then closes the cylinder. The three-axis moving machine 3 expels air into the air supply pipe 134, which in turn expels air into the airbag 133. As air is expelled, the airbag 133 expands and contacts the denture base, clamping and fixing the denture base in place. This secures the denture, preventing movement and ensuring the stability of the plaster removal process. Next, an external air pump is activated to expel air into the hollow shell 4, which then flows into the nozzle 6. The nozzle 6 sprays air out at high speed, removing plaster from the denture. Simultaneously, the three-axis moving machine 3, via the hollow shell 4, moves the nozzle 6 along the denture's direction, continuing the removal of plaster. The plaster on all the dentures is removed from the limit rod 131. After the nozzle 6 has cleaned the plaster from the dentures once, the external air pump is turned off, and air stops being discharged into the hollow shell 4. Then, the three-axis moving machine 3 is turned off, and the cylinder 7 is started. The telescopic rod of the cylinder 7 shortens, causing the nozzle 6 to move upward and retract. The upward movement of the nozzle 6 causes the n-shaped blocking plate 12 to move upward. When the n-shaped blocking plate 12 stops moving upward, it blocks the air jet pipe 11. At the same time, when the nozzle 6 moves upward and contacts the blocking rod 122, the blocking rod 122 blocks the air outlet of the nozzle 6. The cylinder 7 is turned off, and the nozzle 6 stops moving upward. Then, the drive motor 5 is started, causing the hollow shell 4 to swing upward 90 degrees. The hollow shell 4 causes the nozzle 6 to rotate and the grid cylinder 8 to swing upward 90 degrees. The grid cylinder 8 causes the brush 9 to swing upward 90 degrees. The drive motor 5 is turned off, and then the three-axis moving machine 3 is started, which drives the grid cylinder 8 downward through the hollow shell 4. The grid cylinder 8 drives the brush 9 downward. When the brush 9 contacts the denture, the three-axis moving machine 3 is turned off, and air continues to be discharged into the hollow shell 4. The air in the hollow shell 4 is discharged into the jet pipe 11, and the jet pipe 11 sprays air onto the inclined plate 10. The air blows the inclined plate 10 to rotate, and the rotation of the inclined plate 10 drives the grid cylinder 8 to rotate. The rotation of the grid cylinder 8 drives the brush 9 to rotate. At the same time, the air that has come into contact with the inclined plate 10 is discharged through the grid cylinder 8 to form a high-speed airflow. The high-speed airflow sprays onto the denture, and the rotation of the brush 9, in conjunction with the high-speed airflow, brushes away the plaster in the small gaps of the denture. Therefore, it is not necessary to increase the air pressure to enhance the impact force to remove the plaster from the denture.Simultaneously, the three-axis moving machine 3 can be activated to move the brush 9 along the direction of the denture to remove plaster. This ensures thorough removal of plaster from the denture, improving both the cleaning effect and safety. Once all plaster on the denture has been removed, the air supply to the hollow shell 4 is stopped, and the air jet pipe 11 stops expelling air. The three-axis moving machine 3 is then activated to move the hollow shell 4 upwards to reset. The hollow shell 4, in turn, moves the grid cylinder 8 and the nozzle 6 upwards to reset. The grid cylinder 8 moves the brush 9 upwards to reset. Then, the drive motor 5 is activated to swing the hollow shell 4 downwards by 90 degrees to reset. The hollow shell 4 then moves the grid cylinder 8 downwards to reset, and the grid cylinder 8 moves the brush 9 downwards to reset. Finally, the drive motor 5 is turned off. The cylinder 7 is then activated, causing the nozzle 6 to move downwards and reset. The nozzle 6 resets and disengages from the blocking rod 122, stopping the blockage at the nozzle's outlet. Simultaneously, the nozzle 6 moves the n-shaped blocking plate 12 downwards and resets, continuing to block the air jet pipe 11. Then, air is drawn out of the airbag 133 through the air supply pipe 134. As the air is drawn out, the airbag 133 continuously contracts and resets, clamping and fixing the denture base. The electromagnetic plate 13 is then closed, stopping the attraction and fixing of the limiting rod 131. Due to the action of the connecting spring 132, the limiting rod 131 moves upwards and resets, causing the denture to move upwards and reset. The denture, after plaster removal, is then removed from the limiting rod 131 for further processing.

[0037] Please see Figure 10 and Figure 11As shown, the dental prosthesis residual plaster removal device also includes a collection assembly installed on the frame 1. The collection assembly includes an n-shaped rod 14, a U-shaped plate 141, a magnetic sleeve 1411, a transparent sealing cover 142, a movable plate 143, a handle 1431, a breathable collection bag 144, and a blowing assembly. The n-shaped rod 14 is symmetrically fixed to the top of the frame 1 at the front and back. The n-shaped rod 14 is made of iron. Magnetic sleeves 1411 are symmetrically slidably mounted on the n-shaped rod 14 on both the front and back sides. A U-shaped plate 141 is fixed between the four magnetic sleeves 1411. A transparent sealing cover 142 is fixed between the top of the U-shaped plate 141 and the top of the n-shaped rod 14 on both the front and back sides. The transparent sealing cover 142 can close the frame 1. A movable plate 143 is slidably inserted through the middle of the bottom of the frame 1. A breathable collection bag 144 is fixedly inserted through the middle of the movable plate 143. The breathable collection bag 144 can collect the removed plaster. For collection, a handle 1431 is fixedly connected to the center of the front side of the movable plate 143. A blowing assembly is provided between the frame 1 and the molded plate 141. When the blowing assembly operates, it can blow the removed plaster into the frame 1. The blowing assembly includes an air pump 145, a hose 146, an air extraction frame 147, and an air blowing pipe 148. The air blowing pipe 148 is fixedly connected to the front side of the molded plate 141, and the air blowing pipe 148 can spray air. The removed plaster is blown out. An air extraction frame 147 is fixedly connected to the bottom middle of the frame 1. The air extraction frame 147 is located directly below the breathable collection bag 144. An air pump 145 is installed on the left side of the outer front side of the frame 1. The air outlet of the air pump 145 is connected to a hose 146. The tail end of the hose 146 passes through the front side of the U-shaped plate 141 and is connected to the middle of the air blowing pipe 148. The air extraction end of the air pump 145 is fixedly connected to the front side of the air extraction frame 147.

[0038] After the denture is placed on the limiting rod 131 and clamped and fixed by the airbag 133, the operator first pulls the molded plate 141 downwards. The downward movement of the molded plate 141 causes the magnetic sleeve 1411 to move downwards. The magnetic sleeve 1411 slides downwards on the n-shaped rod 14, and the downward movement of the molded plate 141 causes the transparent sealing cover 142 to move downwards. When the magnetic sleeve 1411 contacts the top of the frame 1, the operator stops pulling the molded plate 141 downwards. At this time, the magnetic sleeve 1411 is magnetically attracted to the n-shaped rod 14, thus fixing the molded plate 141. The molded plate 141 then stops moving the transparent sealing cover 142. 2. Moving downwards, the transparent sealing cover 142 seals the frame 1 and covers the denture, allowing subsequent operations to begin removing the plaster from the denture. During plaster removal, the transparent sealing cover 142 blocks any plaster that splatters out, causing it to fall downwards into the frame 1. The plaster inside the frame 1 falls into the breathable collection bag 144. Simultaneously, the air pump 145 is activated, expelling air into the hose 146, which in turn expels air into the air blowing pipe 148. The air in the air blowing pipe 148 then propels the removed plaster backwards. The blown plaster falls into the frame 1, which in turn falls into the breathable collection bag 144. The air pump 145 also draws air from the suction frame 147, creating a negative pressure state inside the suction frame 147. The suction frame 147 then draws air from the frame 1 through the breathable collection bag 144, creating a negative pressure state inside the frame 1, which in turn draws the fallen plaster into the breathable collection bag 144. After all the plaster on the dentures has been cleaned, the air pump 145 is turned off, the air pipe 148 stops blowing air, and the suction of the suction frame 147 stops. The retractable plate 141 is pulled upward to reset, moving the transparent sealing cover 14. 2. Moving upwards to reset, the guide plate 141 also drives the magnetic sleeve 1411 and the air blowing pipe 148 to move upwards to reset. Then, holding the handle 1431, pull the movable plate 143 forward to disengage it from the frame 1. Due to the action of the handle 1431, it is easier for the operator to pull the movable plate 143. The forward movement of the movable plate 143 moves the breathable collection bag 144 forward to the outside of the frame 1, allowing the plaster inside the breathable collection bag 144 to be poured out. After all the collected plaster has been poured out, the movable plate 143 is placed back on the frame 1, and the movable plate 143 drives the breathable collection bag 144 to reset inside the frame 1. In this way, the removed plaster can be prevented from splashing around and affecting the working environment, thus ensuring a good working environment.

[0039] Please see Figure 12 As shown, the dental prosthesis residual plaster removal device also includes a camera detector 15. Camera detectors 15 are installed on both the front and rear sides of the hollow shell 4. The camera detectors 15 are electrically connected to the drive motor 5 through the control module.

[0040] When the brush 9 or nozzle 6 sprays air to remove plaster from the denture, the imaging detector 15 is activated. The detector continuously captures images of the denture. The detector 15, via the control module, activates the drive motor 5, allowing the nozzle 6 or brush 9 to adjust its angle to remove plaster according to the condition of the denture. Once the plaster is completely removed, the imaging detector 15 is turned off. This further improves the effectiveness of removing plaster from the denture.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing residual plaster from dentures, comprising a frame (1) and a U-shaped frame (2) fixed between the two sides inside the frame (1), a three-axis moving machine (3) is provided on the frame (1), a hollow shell (4) is rotatably connected to the moving part of the three-axis moving machine (3), a drive motor (5) is installed on the moving part of the three-axis moving machine (3), and the end of the output shaft of the drive motor (5) is fixedly connected to the shaft of the hollow shell (4), characterized in that, It also includes a slidable nozzle (6) that passes through the bottom of the hollow shell (4) to spray air to remove plaster from the denture. A cylinder (7) is fixedly connected to the top of the hollow shell (4). The end of the telescopic rod of the cylinder (7) is fixedly connected to the end of the nozzle (6). A grid cylinder (8) is rotatably mounted on the hollow shell (4). Brushes (9) are fixedly attached to the outer side of the grid cylinder (8) at even intervals along the circumference. Inclined plates (10) are fixedly attached to the inner side of the grid cylinder (8) at even intervals along the circumference. Air jet pipes (11) are symmetrically fixed to the outer side of the hollow shell (4). The air outlet of the jet pipe (11) faces the inclined plate (10). The jet pipe (11) is used to spray air onto the inclined plate (10). The air pushes the inclined plate (10) to rotate. The inclined plate (10) drives the grid cylinder (8) to rotate. The grid cylinder (8) drives the brush (9) to rotate, so that the brush (9) rotates to completely remove the plaster on the denture. A sealing component is provided between the hollow shell (4) and the jet pipe (6) to seal the jet pipe (6) and the jet pipe (11). A limiting component is provided on the return frame (2) to limit the denture. The sealing assembly includes an n-shaped blocking plate (12) fixedly mounted on the nozzle (6). The front and rear sides of the n-shaped blocking plate (12) are arc-shaped and fit against the inner side of the hollow shell (4). The n-shaped blocking plate (12) corresponds to the jet pipe (11) and is used to block the jet pipe (11). An n-shaped plate (121) is fixed between the two sides inside the hollow shell (4). The n-shaped plate (121) slides through the nozzle (6). A blocking rod (122) located in the middle of the inner side of the nozzle (6) is fixed on the n-shaped plate (121) and is used to block the outlet end of the nozzle (6).

2. A device for removing residual plaster from dentures according to claim 1, characterized in that, The limiting component includes an electromagnetic plate (13) fixed to the inside of the U-shaped frame (2). The electromagnetic plate (13) has sliding limiting rods (131) evenly spaced on it. The outermost limiting rod (131) contacts the inside of the U-shaped frame (2). A connecting spring (132) connects the limiting rod (131) and the electromagnetic plate (13). The limiting rod (131) is provided with a clamping component for clamping and fixing the denture.

3. A device for removing residual plaster from dentures according to claim 2, characterized in that, The clamping assembly includes airbags (133) with uniform intervals fixedly inserted around the circumference of the limiting rod (131) for clamping and fixing the denture. An air supply pipe (134) connected to the airbag (133) is fixedly inserted on the limiting rod (131).

4. A device for removing residual plaster from dentures according to claim 3, characterized in that, The dental prosthesis residual plaster removal device also includes a collection component, which includes an n-shaped rod (14) symmetrically fixed to the top of the frame (1). The n-shaped rod (14) is made of iron. Magnetic sleeves (1411) are symmetrically slidably mounted on the n-shaped rod (14). A U-shaped plate (141) is fixed between the magnetic sleeves (1411). A transparent sealing cover (142) is fixed between the U-shaped plate (141) and the top of the n-shaped rod (14) to close the frame (1). A movable plate (143) is slidably connected to the bottom of the frame (1). A breathable collection bag (144) is fixedly connected to the movable plate (143) to collect the removed plaster. A blowing component is provided between the frame (1) and the U-shaped plate (141) to blow the removed plaster into the frame (1).

5. A device for removing residual plaster from dentures according to claim 4, characterized in that, The collection assembly also includes a handle (1431) fixed to the movable plate (143).

6. A device for removing residual plaster from dentures according to claim 5, characterized in that, The blowing assembly includes an air blowing pipe (148) fixed to the inside of the molded plate (141) to blow air out to blow the removed plaster. The bottom of the frame (1) is fixedly connected to an air extraction frame (147) located directly below the breathable collection bag (144). An air blowing pump (145) is installed on the frame (1). The air outlet of the air blowing pump (145) is connected to a hose (146). The tail end of the hose (146) passes through the molded plate (141) and is connected to the air blowing pipe (148). The air extraction end of the air blowing pump (145) is fixedly connected to the air extraction frame (147).

7. A device for removing residual plaster from dentures according to claim 6, characterized in that, The denture residual plaster removal device also includes imaging detectors (15) installed on both sides of the hollow shell (4), and the imaging detectors (15) are electrically connected to the drive motor (5) through the control module.

Images