A concave polishing machine for orthokeratology lenses

Abstract

This invention relates to a concave polishing machine for orthokeratology lenses. The invention includes a mounting plate with a cylinder fixedly attached thereon. A frame is provided at the output end of the cylinder, and a first motor is fixedly attached within the frame. By setting up an arc-shaped block and a cleaning brush, when the polishing disc needs cleaning after polishing, a second motor is activated. The second motor drives a first rotating shaft and a first gear to rotate. The first gear drives a ring gear and a circular plate to rotate, which in turn drives the arc-shaped block and the cleaning brush to rotate. The cleaning brush cleans the surface of the polishing disc. During the rotation of the cleaning brush, a fan is activated, drawing air from the box through an L-shaped tube, creating negative pressure within the box. This creates negative pressure at the suction channel of the arc-shaped block, allowing it to collect debris scraped off by the cleaning brush, as well as debris adhering to the brush. After entering the cavity, the debris enters the box through a connecting pipe for collection.

Description

Technical Field

[0001] This invention relates to the field of polishing machine technology, and in particular to a concave surface polishing machine for orthokeratology lenses. Background Technology

[0002] Orthokeratology lenses are made of breathable rigid corneal contact lens material. They are specially designed with reverse geometry, and their inner surface is composed of multiple arc segments. Due to the special shape of the lens, a special concave polishing machine is required to polish the concave surface of the lens during the production process.

[0003] The existing concave polishing machine consists of a cylinder, a motor, and a polishing disc mounted on the motor output shaft. The polishing disc is convex, so that it can polish the concave surface of the orthokeratology lens. The orthokeratology lens is placed directly below the polishing disc, and the cylinder drives the polishing disc to contact the lens. The motor is started, and the motor can drive the polishing disc to polish the lens.

[0004] After a polishing machine polishes a lens, a large amount of debris will adhere to its polishing disc. This debris will affect the polishing effect of the next polishing. Therefore, after polishing, the polishing disc needs to be cleaned to remove the debris attached to its surface. However, current polishing machines do not have the function of cleaning the polishing disc. Therefore, we propose a concave surface polishing machine for orthokeratology lenses to solve the above technical problems. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the fact that current polishing machines do not have the function of cleaning the polishing disc.

[0006] To solve the above-mentioned technical problems, the present invention provides a concave polishing machine for orthokeratology lenses, including a mounting plate, a cylinder fixedly connected to the mounting plate, a frame provided at the output end of the cylinder, a first motor fixedly connected inside the frame, a transmission shaft fixedly connected to the output shaft of the first motor, a polishing disc fixedly connected to the bottom end of the transmission shaft, and a cleaning component provided on the outer side of the polishing disc for cleaning the polishing disc.

[0007] In one embodiment of the present invention, the cleaning assembly includes a housing located outside the polishing disc, a fixing plate fixedly connected to the inner wall of the housing, a second motor fixedly connected to the bottom of the fixing plate, a first rotating shaft fixedly connected to the output shaft of the second motor, the top end of the first rotating shaft being rotatably connected to the top inner wall of the housing via a bearing, a first gear fixedly connected to the surface of the first rotating shaft, an annular plate rotatably connected to the top inner wall of the housing, an annular gear fixedly connected to the outer wall of the annular plate, the annular gear meshing with the first gear, an arc-shaped block fixedly connected to the bottom of the annular plate, and a cleaning brush fixedly connected to the arc-shaped block, the shape of the arc-shaped block and the shape of the cleaning brush being adapted to the shape of the polishing disc.

[0008] In one embodiment of the present invention, a box body is fixedly connected to the bottom inner wall of the housing, the top of the box body is conical, a rectangular opening is provided at the top of the box body, a fan is fixedly connected to the top of the box body, the fan is located directly above the rectangular opening, a filter screen plate is fixedly connected to the top inner wall of the box body, the area of ​​the filter screen plate is larger than the area of ​​the rectangular opening, and the filter screen plate is located directly below the rectangular opening.

[0009] In one embodiment of the present invention, a wind collector shroud is fixedly connected to the top of the housing, the wind collector shroud is located outside the fan, and an L-shaped tube is fixedly connected to the top of the wind collector shroud, with one end of the L-shaped tube passing through the housing.

[0010] In one embodiment of the present invention, the top of the box body is rotatably connected to a rotating sleeve via a bearing, the top end of the rotating sleeve is fixedly connected to a connecting pipe, the connecting pipe communicates with the inside of the box body through the rotating sleeve, a cavity is formed inside the arc-shaped block, the cavity communicates with the connecting pipe, a plurality of suction channels are formed on the arc-shaped block, one end of the suction channel communicates with the cavity, and the other end of the suction channel is located in the gap of the cleaning brush.

[0011] In one embodiment of the present invention, an arc-shaped piece is fixedly connected to the arc-shaped block, the arc-shaped piece is elastic, a impact plate is fixedly connected to the arc-shaped block, a spring is fixedly connected to the inner wall of the shell, an impact ball is fixedly connected to one end of the spring, the impact ball is located on the trajectory of the arc-shaped piece and the impact plate rotating around the center of the circular plate, and a connecting rope is fixedly connected between the impact ball and the inner wall of the shell.

[0012] In one embodiment of the present invention, a movable ring is fixedly connected to the housing by a fixing block, a guide post is provided on one side of the housing, the movable ring is slidably connected to the surface of the guide post, and circular plates are fixedly connected to both ends of the guide post.

[0013] In one embodiment of the present invention, the guide post is configured as two sections, the upper section is configured as vertical and the lower section is configured as inclined. A guide groove is provided on the guide post, and a slide bar is fixedly connected to the inner wall of the moving ring. The slide bar is elastic and is slidably connected in the guide groove.

[0014] In one embodiment of the present invention, an L-shaped plate is fixedly attached to the mounting plate, and a second rotating shaft is rotatably connected to the L-shaped plate via a bearing. A winding wheel is fixedly attached to the surface of the second rotating shaft, and a connecting line is wound and fixedly attached to the surface of the winding wheel. One end of the connecting line passes through one of the circular plates and is fixedly attached to a movable ring. A second gear is fixedly attached to the surface of the second rotating shaft, and a connecting rod is provided on one side of the second gear. A rack is fixedly attached to the connecting rod, and the rack meshes with the second gear.

[0015] In one embodiment of the present invention, a U-shaped plate is fixedly connected to the output end of the cylinder, one end of the connecting rod is fixedly connected to the U-shaped plate, four telescopic sleeves are fixedly connected to the bottom of the U-shaped plate, a connecting plate is fixedly connected to the bottom end of two adjacent telescopic sleeves, the two connecting plates are fixedly connected to both ends of the frame, a first magnet is fixedly connected to the top of the connecting plate through a support platform, two second magnets are fixedly connected to the bottom of the U-shaped plate, the second magnets are located directly above the first magnets, the opposite polarities of the faces of the first magnets and the second magnets are opposite, a third magnet is fixedly connected to the top of the frame, a bracket plate is fixedly connected to the mounting plate, a fourth magnet is fixedly connected to the bottom of the bracket plate, and the fourth magnet and the third magnet are in contact with and attract each other.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] This invention, by setting up an arc-shaped block and a cleaning brush, allows for the following mechanism: When the polishing disc needs cleaning after polishing, a second motor is activated. The second motor drives a first rotating shaft and a first gear to rotate. The first gear drives a ring gear and a circular plate to rotate. The circular plate drives the arc-shaped block and the cleaning brush to rotate. The cleaning brush cleans the surface of the polishing disc. During the rotation of the cleaning brush, a fan is activated, drawing air out of the box through the L-shaped tube, creating negative pressure inside the box. This creates negative pressure at the suction channel of the arc-shaped block, allowing the suction channel to collect the waste debris scraped off by the cleaning brush, as well as the waste debris attached to the cleaning brush. After entering the cavity, the waste debris enters the box through a connecting pipe for collection. This solves the problem that current polishing machines do not have the function of cleaning the polishing disc.

[0018] This invention, by setting a moving ring and a guide post, activates a cylinder when the polishing disc needs to move downwards to contact the lens to be polished. The cylinder drives a U-shaped plate downwards, and the frame is fixed to the support plate by a third and fourth magnet. The downward movement of the U-shaped plate causes the telescopic sleeve to retract. The U-shaped plate drives a rack downwards via a connecting rod, which in turn drives a second gear to rotate. The second gear drives a second rotating shaft and a winding wheel to rotate, releasing the connecting wire. Under the influence of gravity, the housing moves downwards, and the moving ring slides on the guide post. Eventually, the moving ring contacts the circular plate below, and the housing moves away from directly below the polishing disc. As the U-shaped plate continues to move downwards, the first magnet contacts the second magnet, and the frame is fixed to the U-shaped plate and continues to move downwards. The third magnet separates from the fourth magnet, and the frame drives the first motor and the polishing disc downwards, bringing the polishing disc into contact with the lens. This automatic disengagement of the cleaning components from the polishing disc without the need for other drive sources does not hinder the normal operation of the polishing disc. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of the casing of the present invention;

[0022] Figure 3 This is a cross-sectional view of the box body of the present invention;

[0023] Figure 4 This is a cross-sectional front view of the casing of the present invention;

[0024] Figure 5 This is the present invention. Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the first partial three-dimensional structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0027] Instruction manual drawing reference numerals: 1. Mounting plate; 2. Cylinder; 3. Frame; 4. First motor; 5. Drive shaft; 6. Polishing disc; 7. Housing; 8. Fixing plate; 9. Second motor; 10. First rotating shaft; 11. First gear; 12. Circular ring plate; 13. Ring gear; 14. Arc-shaped block; 15. Cleaning brush; 16. Box body; 17. Fan; 18. Filter screen; 19. Air collector hood; 20. L-shaped tube; 21. Rotating sleeve; 22. Connecting tube; 23. Cavity; 24. Suction channel; 25. 26. Arc-shaped plate; 27. Impact plate; 28. Spring; 29. ​​Impact ball; 30. Connecting rope; 31. Moving ring; 32. Guide post; 33. Circular plate; 34. Guide groove; 35. Sliding bar; 36. L-shaped plate; 37. Second rotating shaft; 38. Winding reel; 39. Connecting line; 40. Second gear; 41. Connecting rod; 42. Rack; 43. U-shaped plate; 44. Telescopic sleeve; 45. Connecting plate; 46. First magnet; 47. Second magnet; 48. Third magnet; 49. Support plate; 40. Fourth magnet. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0029] Reference Figures 1-7 As shown, a concave polishing machine for orthokeratology lenses includes a mounting plate 1, a cylinder 2 fixedly connected to the mounting plate 1, a frame 3 provided at the output end of the cylinder 2, a first motor 4 fixedly connected inside the frame 3, a transmission shaft 5 fixedly connected to the output shaft of the first motor 4, a polishing disc 6 fixedly connected to the bottom end of the transmission shaft 5, and a cleaning component provided on the outer side of the polishing disc 6 for cleaning the polishing disc 6. The orthokeratology lens to be polished is placed directly below the polishing disc 6. The cylinder 2 is started, driving the frame 3 and the first motor 4 to move downwards, so that the polishing disc 6 contacts the lens. The first motor 4 is then started, driving the transmission shaft 5 to rotate, which in turn drives the polishing disc 6 to rotate, thus polishing the lens.

[0030] Furthermore, such as Figure 2As shown, the cleaning assembly includes a housing 7 located outside the polishing disc 6. A fixing plate 8 is fixed to the inner wall of the housing 7. A second motor 9 is fixed to the bottom of the fixing plate 8. A first rotating shaft 10 is fixed to the output shaft of the second motor 9. The top end of the first rotating shaft 10 is rotatably connected to the top inner wall of the housing 7 via a bearing. A first gear 11 is fixed to the surface of the first rotating shaft 10. A circular ring plate 12 is rotatably connected to the top inner wall of the housing 7. A ring gear 13 is fixed to the outer wall of the circular ring plate 12. The ring gear 13 meshes with the first gear 11. An arc-shaped block 14 is fixed to the bottom of the circular ring plate 12. A cleaning brush 15 is fixed to the arc-shaped block 14. The shape of the block 14 and the shape of the cleaning brush 15 are adapted to the shape of the polishing disc 6. After polishing, the surface of the polishing disc 6 will be covered with debris, which needs to be cleaned in time. The polishing disc 6 is reset by the cylinder 2, and the second motor 9 is started. The second motor 9 drives the first rotating shaft 10 to rotate. The first rotating shaft 10 drives the first gear 11 to rotate. The first gear 11 drives the ring gear 13 to rotate. The ring gear 13 drives the circular plate 12 to rotate. The circular plate 12 drives the arc block 14 to rotate. The arc block 14 drives the cleaning brush 15 to rotate. The cleaning brush 15 can clean the polishing disc 6 and remove the debris attached to the surface of the polishing disc 6. Some of the removed debris will fall into the housing 7.

[0031] Furthermore, such as Figure 3 and Figure 4 As shown, a box 16 is fixed to the bottom inner wall of the housing 7. The top of the box 16 is conical, and a rectangular opening is provided at the top of the box 16. A fan 17 is fixed to the top of the box 16 and is located directly above the rectangular opening. A filter screen 18 is fixed to the top inner wall of the box 16. The area of ​​the filter screen 18 is larger than the area of ​​the rectangular opening, and the filter screen 18 is located directly below the rectangular opening. When the cleaning brush 15 rotates, the fan 17 is activated, and the fan 17 draws out the air from the box 16, making the box 16 negative pressure. The filter screen 18 can prevent waste from being drawn out.

[0032] Furthermore, such as Figure 2 As shown, a wind collector shroud 19 is fixedly connected to the top of the housing 16. The wind collector shroud 19 is located outside the fan 17. An L-shaped tube 20 is fixedly connected to the top of the wind collector shroud 19. One end of the L-shaped tube 20 passes through the housing 7. The air drawn out is discharged from the housing 7 through the wind collector shroud 19 and the L-shaped tube 20, preventing the fan 17 from blowing air directly into the housing 7.

[0033] Furthermore, such as Figure 4 and Figure 5As shown, the top of the box 16 is rotatably connected to a rotating sleeve 21 via a bearing. A connecting pipe 22 is fixed to the top of the rotating sleeve 21. The connecting pipe 22 communicates with the inside of the box 16 through the rotating sleeve 21. A cavity 23 is opened inside the arc-shaped block 14. The cavity 23 communicates with the connecting pipe 22. Multiple suction channels 24 are opened on the arc-shaped block 14. One end of the suction channel 24 communicates with the cavity 23. The other end of the suction channel 24 is located in the gap of the cleaning brush 15. The negative pressure inside the box 16 can generate suction at the suction channel 24. Some of the waste debris cleaned by the cleaning brush 15 will be sucked into the cavity 23. The waste debris in the cavity 23 will enter the box 16 through the connecting pipe 22 and the rotating sleeve 21 to achieve the collection of waste debris. During the rotation of the arc-shaped block 14, the connecting pipe 22 rotates on the box 16 through the rotating sleeve 21.

[0034] Furthermore, such as Figure 4 and Figure 5 As shown, an arc-shaped piece 25 is fixedly connected to the arc-shaped block 14. The arc-shaped piece 25 is elastic. A shock plate 26 is fixedly connected to the arc-shaped block 14. A spring 27 is fixedly connected to the inner wall of the housing 7. An impact ball 28 is fixedly connected to one end of the spring 27. The impact ball 28 is located on the trajectory of the arc-shaped piece 25 and the shock plate 26 rotating around the center of the annular plate 12. A connecting rope 29 is fixedly connected between the impact ball 28 and the inner wall of the housing 7. During the rotation of the arc-shaped block 14, the arc-shaped piece 25 will contact the impact ball 28 and the arc-shaped piece 25 will press the impact ball 28. When the rotation continues, the arc-shaped piece 25 will no longer contact the impact ball 28, and the impact ball 28 will directly hit the shock plate 26. The impact generates vibration, which can cause the waste on the polishing disc 6 to fall off, and cause the waste in the suction channel 24, cavity 23 and connecting pipe 22 to fall into the box 16.

[0035] Furthermore, such as Figure 6 As shown, a movable ring 30 is fixedly connected to the housing 7 by a fixing block. A guide post 31 is provided on one side of the housing 7. The movable ring 30 is slidably connected to the surface of the guide post 31. Circular plates 32 are fixedly connected to both ends of the guide post 31. During the movement of the movable ring 30 and the housing 7, the movable ring 30 slides on the surface of the guide post 31. When the housing 7 is in the lowest position, the movable ring 30 contacts the circular plate 32 below.

[0036] Furthermore, such as Figure 2 and Figure 6As shown, the guide post 31 is configured with two sections, the upper section being vertical and the lower section being inclined. The guide post 31 has a guide groove 33. The inner wall of the moving ring 30 is fixed with a slider 34. The slider 34 is elastic and is slidably connected in the guide groove 33. During the sliding of the moving ring 30, the slider 34 slides in the guide groove 33. The slider 34 is elastic and can also be limited at the bending point. The two-section guide post 31 can limit the movement trajectory of the moving ring 30. When the moving ring 30 is in the inclined section, the housing 7 will move away from directly below the polishing disc 6.

[0037] Furthermore, such as Figure 6 As shown, an L-shaped plate 35 is fixedly attached to the mounting plate 1. A second rotating shaft 36 is rotatably connected to the L-shaped plate 35 via a bearing. A winding reel 37 is fixedly attached to the surface of the second rotating shaft 36. A connecting line 38 is wound and fixedly attached to the surface of the winding reel 37. One end of the connecting line 38 passes through one of the circular plates 32 and is fixedly attached to the moving ring 30. A second gear 39 is fixedly attached to the surface of the second rotating shaft 36. A connecting rod 40 is provided on one side of the second gear 39. A rack 41 is fixedly attached to the connecting rod 40. The rack 41 meshes with the second gear 39. While the U-shaped plate 42 moves downward and the frame 3 remains stationary, the U-shaped plate 42 drives the connecting rod 40 and the rack 41 to move downward. The rack 41 drives the second gear 39 to move downward. The second gear 39 rotates, driving the second shaft 36 to rotate. The second shaft 36 drives the winding wheel 37 to rotate, releasing the connecting wire 38. Under the influence of gravity, the moving ring 30 and the housing 7 move downwards along the guide post 31. The housing 7 moves away from directly below the polishing disc 6. After the housing 7 moves away, the frame 3 and the polishing disc 6 will move downwards. While the U-shaped plate 42 moves upwards and the frame 3 remains stationary, the frame 3 and the polishing disc 6 have reached their highest point. The U-shaped plate 42 drives the winding wheel 37 to wind the connecting wire 38 around its surface. The connecting wire 38 pulls the moving ring 30 and the housing 7 to move along the guide post 31, so that the housing 7 covers the outside of the polishing disc 6, making it easier to clean the polishing disc 6.

[0038] Furthermore, such as Figure 7As shown, a U-shaped plate 42 is fixedly connected to the output end of the cylinder 2. One end of the connecting rod 40 is fixedly connected to the U-shaped plate 42. Four telescopic sleeves 43 are fixedly connected to the bottom of the U-shaped plate 42. A connecting plate 44 is fixedly connected to the bottom end of two adjacent telescopic sleeves 43. The two connecting plates 44 are fixed to both ends of the frame 3. A first magnet 45 is fixedly connected to the top of the connecting plate 44 via a support platform. Two second magnets 46 are fixedly connected to the bottom of the U-shaped plate 42. The second magnets 46 are located directly above the first magnets 45. The polarities of the opposite faces of the first magnet 45 and the second magnets 46 are opposite. A third magnet 47 is fixedly connected to the top of the frame 3. A bracket plate 48 is fixedly connected to the mounting plate 1. A fourth magnet 49 is fixedly connected to the bottom of the bracket plate 48. The fourth magnet 49 and the third magnet 47 are in contact and attract each other. When the air... When cylinder 2 drives polishing disc 6 to move downward, cylinder 2 drives U-shaped plate 42 and second magnet 46 to move downward. Frame 3 is fixed to support plate 48 by third magnet 47 and fourth magnet 49. The downward movement of U-shaped plate 42 causes telescopic sleeve 43 to retract. When first magnet 45 and second magnet 46 make arc-shaped contact and attract each other, frame 3 is fixed to U-shaped plate 42. Continuing downward will cause third magnet 47 and fourth magnet 49 to separate, and frame 3 will begin to move downward with U-shaped plate 42. When cylinder 2 drives polishing disc 6 to reset, third magnet 47 will make arc-shaped contact and attract fourth magnet 49, and frame 3 is fixed to support plate 48 by third magnet 47 and fourth magnet 49. Continuing upward will cause first magnet 45 and second magnet 46 to separate, U-shaped plate 42 will continue to move upward, and frame 3 will not move upward with polishing disc 6.

[0039] Working principle: During use, the orthokeratology lens to be polished is placed directly below the polishing disc 6. Cylinder 2 is activated, driving the frame 3 and the first motor 4 downwards, bringing the polishing disc 6 into contact with the lens. The first motor 4 is then activated, driving the transmission shaft 5 to rotate. The transmission shaft 5 drives the polishing disc 6 to rotate, polishing the lens. After polishing, debris will adhere to the surface of the polishing disc 6, requiring timely cleaning. Cylinder 2 resets the polishing disc 6, activating the second motor 9. The second motor 9 drives the first rotating shaft 10 to rotate, which in turn drives the first gear 11. The first gear 11 drives the ring gear 13, which in turn drives the circular plate 12. The circular plate 12 then drives the arc-shaped block 14 to rotate. The arc-shaped block 14 drives the cleaning brush 15 to rotate, which cleans the polishing disc 6 and removes the debris attached to its surface. Some of the debris falls into the housing 7. While the cleaning brush 15 is rotating, the fan 17 is activated, drawing air out of the housing 16 and creating a negative pressure inside. The filter plate 18 prevents debris from being drawn out. The drawn air is discharged from the housing 7 through the air collector 19 and the L-shaped pipe 20, preventing the fan 17 from blowing air directly into the housing 7. The negative pressure inside the housing 16 creates suction at the suction channel 24, drawing some of the debris cleaned by the cleaning brush 15 into the cavity 23. The debris in the cavity 23 then enters the housing 1 through the connecting pipe 22 and the rotating sleeve 21. Within 6, waste debris is collected. During the rotation of the arc-shaped block 14, the connecting pipe 22 rotates on the box 16 via the rotating sleeve 21. During the rotation of the arc-shaped block 14, the arc-shaped plate 25 contacts the impact ball 28, and the arc-shaped plate 25 presses against the impact ball 28. When the rotation continues, the arc-shaped plate 25 no longer contacts the impact ball 28, and the impact ball 28 directly hits the impact plate 26. The impact generates vibration, which causes the waste debris on the polishing disc 6 to fall off, allowing the waste debris in the suction channel 24, cavity 23, and connecting pipe 22 to fall into the box 16. When the cylinder 2 drives the polishing disc 6 to move downward, the cylinder 2 drives the U-shaped plate 42 and the second magnet 46 to move downward. The frame 3 is fixed to the support plate 48 by the third magnet 47 and the fourth magnet 49. The U-shaped plate 42 moves downward. The downward movement causes the telescopic sleeve 43 to retract. When the first magnet 45 and the second magnet 46 make arc-shaped contact and attract each other, the frame 3 is fixed to the U-shaped plate 42. Continuing downward will cause the third magnet 47 and the fourth magnet 49 to separate, and the frame 3 will begin to move downward with the U-shaped plate 42. When the cylinder 2 drives the polishing disc 6 to reset, the third magnet 47 and the fourth magnet 49 will make arc-shaped contact and attract each other. The frame 3 is fixed to the support plate 48 by the third magnet 47 and the fourth magnet 49. Continuing upward will cause the first magnet 45 and the second magnet 46 to separate, and the U-shaped plate 42 will continue to move upward. The frame 3 will not move upward with the polishing disc 6. During the downward movement of the U-shaped plate 42 while the frame 3 remains stationary, the U-shaped plate 42 drives the connecting rod 40 and the rack 41 to move downward.The rack 41 drives the second gear 39 to rotate, which in turn drives the second shaft 36 to rotate. The second shaft 36 then drives the winding reel 37 to rotate, releasing the connecting wire 38. Under gravity, the moving ring 30 and the housing 7 move downwards along the guide post 31, moving away from directly beneath the polishing disc 6. Only after the housing 7 has moved away will the frame 3 and the polishing disc 6 move downwards. While the U-shaped plate 42 moves upwards and the frame 3 remains stationary, the frame 3 and the polishing disc 6 have reached their highest point. The U-shaped plate 42 then drives the winding reel 37 to wind the connecting wire 38 around its surface. The connecting wire 38 pulls the moving ring 30 and the housing 7 along the guide post 31, causing the housing 7 to cover the outside of the polishing disc 6, facilitating cleaning of the polishing disc 6.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A concave polishing machine for orthokeratology lens, comprising a mounting plate (1), a pneumatic cylinder (2) is fixed on the mounting plate (1), a frame (3) is arranged on the output end of the pneumatic cylinder (2), characterized in that: A first motor (4) is fixedly connected in the frame (3), an output shaft of the first motor (4) is fixedly connected with a transmission shaft (5), a bottom end of the transmission shaft (5) is fixedly connected with a polishing disc (6), and the outer side of the polishing disc (6) is provided with a cleaning assembly for cleaning the polishing disc (6); The cleaning assembly comprises a shell (7) located on the outer side of the polishing disc (6), an inner wall of the shell (7) is fixedly connected with a fixed plate (8), the bottom of the fixed plate (8) is fixedly connected with a second motor (9), an output shaft of the second motor (9) is fixedly connected with a first rotating shaft (10), the top end of the first rotating shaft (10) is rotatably connected to the top inner wall of the shell (7) through a bearing, the surface of the first rotating shaft (10) is fixedly connected with a first gear (11), the top inner wall of the shell (7) is rotatably connected with a circular ring plate (12), the outer wall of the circular ring plate (12) is fixedly connected with a ring gear (13), the ring gear (13) is engaged with the first gear (11), the bottom of the circular ring plate (12) is fixedly connected with an arc-shaped block (14), the arc-shaped block (14) is fixedly connected with a cleaning brush (15), and the shape of the arc-shaped block (14) and the shape of the cleaning brush (15) are adapted to the shape of the polishing disc (6). The bottom inner wall of the shell (7) is fixedly connected with a box body (16), the top of the box body (16) is conical, a rectangular opening is formed in the top of the box body (16), the top of the box body (16) is fixedly connected with a fan (17), the fan (17) is located directly above the rectangular opening, the top inner wall of the box body (16) is fixedly connected with a filter screen plate (18), the area of the filter screen plate (18) is greater than the area of the rectangular opening, and the filter screen plate (18) is located directly below the rectangular opening. The top of the box body (16) is fixedly connected with a wind collecting cover (19), the wind collecting cover (19) is located on the outer side of the fan (17), the top end of the wind collecting cover (19) is fixedly and continuously connected with an L-shaped pipe (20), and one end of the L-shaped pipe (20) penetrates through the shell (7). The top of the box body (16) is rotatably connected with a rotating sleeve (21) through a bearing, the top end of the rotating sleeve (21) is fixedly connected with a connecting pipe (22), the connecting pipe (22) is in communication with the inside of the box body (16) through the rotating sleeve (21), a cavity (23) is formed in the arc-shaped block (14), the cavity (23) is in communication with the connecting pipe (22), a plurality of suction channels (24) are formed in the arc-shaped block (14), one end of each suction channel (24) is in communication with the cavity (23), and the other end of each suction channel (24) is located in the gap of the cleaning brush (15). The arc-shaped block (14) is fixedly connected with an arc-shaped sheet (25) which has elasticity, and the arc-shaped block (14) is fixedly connected with a collision plate (26), the inner wall of the shell (7) is fixedly connected with a spring (27), one end of the spring (27) is fixedly connected with a collision ball (28), the collision ball (28) is located on the track of the rotation of the arc-shaped sheet (25) and the collision plate (26) around the center of the circular ring plate (12), and the collision ball (28) and the inner wall of the shell (7) are fixedly connected with a connecting rope (29).

2. A corneal topographer for molding contact lenses as defined in claim 1 wherein: The shell (7) is fixedly connected with a moving ring (30) through a fixed block, one side of the shell (7) is provided with a guide column (31), the moving ring (30) is slidingly connected to the surface of the guide column (31), and both ends of the guide column (31) are fixedly connected with circular plates (32).

3. A corneal topographer for molding contact lenses as defined in claim 2 wherein: The guide column (31) is provided in two sections, the upper section is provided in a vertical state, and the lower section is provided in an inclined state, the guide column (31) is provided with a guide groove (33), the inner wall of the moving ring (30) is fixedly connected with a sliding strip (34), the sliding strip (34) has elasticity, and the sliding strip (34) is slidingly connected in the guide groove (33).

4. A corneal topographer for molding contact lenses as defined in claim 3 wherein: The mounting plate (1) is fixedly connected with an L-shaped plate (35), the L-shaped plate (35) is rotatably connected with a second rotating shaft (36) through a bearing, the surface of the second rotating shaft (36) is fixedly connected with a winding wheel (37), the surface of the winding wheel (37) is fixedly connected with a connecting line (38) which is wound, one end of the connecting line (38) penetrates through one of the circular plates (32) and is fixedly connected to the moving ring (30), the surface of the second rotating shaft (36) is fixedly connected with a second gear (39), one side of the second gear (39) is provided with a connecting rod (40), the connecting rod (40) is fixedly connected with a rack (41), and the rack (41) is meshed with the second gear (39).

5. A corneal topographer for molding a contact lens according to claim 4, characterized in that: The output end of the air cylinder (2) is fixedly connected with a U-shaped plate (42), one end of the connecting rod (40) is fixedly connected to the U-shaped plate (42), the bottom of the U-shaped plate (42) is fixedly connected with four telescopic sleeves (43), the bottom ends of two adjacent telescopic sleeves (43) are fixedly connected with connecting plates (44), the two connecting plates (44) are fixedly connected to both ends of the frame (3), the top of the connecting plate (44) is fixedly connected with a first magnet (45) through a supporting table, the bottom of the U-shaped plate (42) is fixedly connected with two second magnets (46), the second magnets (46) are located directly above the first magnet (45), the opposite faces of the first magnet (45) and the second magnet (46) are opposite in polarity, the top of the frame (3) is fixedly connected with a third magnet (47), the mounting plate (1) is fixedly connected with a support plate (48), the bottom of the support plate (48) is fixedly connected with a fourth magnet (49), and the fourth magnet (49) and the third magnet (47) are in contact and attraction with each other.

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