A squeegee blade burnishing screen

Abstract

The present application relates to the field of scraping strip polishing, and discloses a scraping strip polishing screen plate, which comprises a bottom plate, a supporting block is fixedly connected to the upper surface of the bottom plate, a screen plate is arranged on the upper surface of the supporting block, a gauze cloth is arranged in the screen plate, a sliding plate is slidably connected to the inside of the screen plate, a scraping plate is attached to the outer wall of the sliding plate, a polishing plate is arranged on the outer wall of the scraping plate, a supporting plate is attached to the lower surface of the polishing plate, the outer wall of the supporting plate is slidably connected to the inside of the bottom plate, and the lower surface of the supporting plate is attached to a limiting plate one. Spring one is used for resetting the sliding column, further resetting the polishing plate, the supporting plate will be in contact with the limiting plate one after sliding a distance, thereby realizing the limitation of the movement of the supporting plate, the mutual cooperation between the supporting plate, the sliding column, the fixed column, the spring and the supporting plate is realized, thereby ensuring the consistency of polishing force, improving polishing quality and ensuring the effect of subsequent printing quality.

Description

Technical Field

[0001] This invention relates to the field of scraper polishing technology, specifically to a scraper polishing screen. Background Technology

[0002] A squeegee is a tool used for scraping or coating ink. During the printing process, the squeegee is mounted on a squeegee holder. As the squeegee moves across the screen, the squeegee scrapes ink from one end of the screen to the other through contact with the screen surface, transferring the ink through the image area on the screen to the substrate, thus achieving printing.

[0003] A search revealed Chinese Patent Publication No. CN118905742A, which discloses a grinding device for processing rubber strips of screen printing squeegees, belonging to the field of mechanical processing technology. The device includes a base, which consists of a base plate and a fixed seat. The fixed seat is mounted on the base plate, and a clamping plate one is fixedly disposed on the fixed seat. A clamping plate two slides on the fixed seat, and the clamping plates one and two can respectively abut against opposite sides of the workpiece. A grinding blade slides on the fixed seat and can slide on the cutting edge of the workpiece. One end of the grinding blade has a grinding edge blade one fixedly disposed, and the other end has a grinding edge blade two slidingly disposed. The grinding edge blade one and grinding edge blade two can respectively slide on opposite sides of the cutting edge of the workpiece. The fixed seat is provided with a first driving component for driving the clamping plate two to move and a pushing component for pushing the grinding edge blade two to move. The grinding blade is provided with a first limiting component for limiting the grinding edge blade two. This application has the effect of reducing burrs on the edge of the squeegee during grinding, thereby reducing the impact of the squeegee on the printing effect.

[0004] Current methods for polishing squeegees typically involve workers manually polishing the squeegee with sandpaper or other polishing tools. However, during the polishing process, different workers vary in their control of force, polishing techniques, and skill levels. Some workers apply too much force, which may cause localized over-polishing of the squeegee, making it thinner and exceeding dimensional tolerances, thus affecting its normal use. On the other hand, applying too little force may fail to effectively remove burrs and imperfections from the squeegee's surface, making it difficult to achieve the desired polishing effect and consequently affecting the quality of subsequent printing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a squeegee polishing screen, which solves the problem that existing squeegee polishing is usually done manually by workers, resulting in poor flatness and thickness consistency after polishing, which in turn affects the subsequent printing quality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A polishing screen for scrapers includes a base plate, a support block fixedly connected to the upper surface of the base plate, a screen plate disposed on the upper surface of the support block, a mesh fabric disposed inside the screen plate, a sliding plate slidably connected inside the screen plate, a scraper attached to the outer wall of the sliding plate, a polishing plate disposed on the outer wall of the scraper, a support plate attached to the lower surface of the polishing plate, the outer wall of the support plate slidably connected to the inside of the base plate, a limiting plate affixed to the lower surface of the support plate, the outer wall of the limiting plate affixed fixedly connected to the inside of the base plate, a spring-loaded assembly disposed on the lower surface of the support plate, a fixing post slidably connected to the outer wall of the spring-loaded assembly, and the lower surface of the fixing post affixed fixedly connected to the inner bottom wall of the base plate.

[0007] By adopting the above technical solution, when the scraper moves on the grinding plate, it will drive the grinding plate to move, and further drive the support plate to move. After the support plate moves a certain distance, it will contact the limiting plate. At this time, the limiting plate will prevent the support plate from moving further. When the support plate moves, it will also drive the sliding column to slide. At the same time, it will cooperate with the fixed column to compress the spring. The sliding column, the fixed column and the spring work together to reset the grinding plate. Through the cooperation between the limiting plate, the sliding column, the fixed column and the spring, the force of the scraper contacting the grinding plate each time is uniform and consistent, thereby improving the grinding quality.

[0008] Preferably, the rebound assembly includes a sliding column, the upper surface of which is fixedly connected to the lower surface of the support plate, and a spring is provided on the lower surface of the sliding column, the outer wall of which is disposed on the inner bottom wall of the fixed column.

[0009] Preferably, the support plate is provided with a limiting component inside, the outer wall of the limiting component is fixedly connected to a second limiting plate, and the outer wall of the second limiting plate is slidably connected to the outer wall of the grinding plate.

[0010] Preferably, the limiting component includes a lead screw, the outer wall of which is threadedly connected to the inside of the support plate, a transmission block one is fixedly connected to the upper surface of the lead screw, and the outer wall of the lead screw is fixedly connected to the inside of the limiting plate two.

[0011] Preferably, the grinding plate has a groove inside, and the limiting plate 2 is slidably connected to the outer wall of the grinding plate through the groove.

[0012] Preferably, a connecting plate one is fixedly connected to the outer wall of the sliding plate, a connecting plate two is fixedly connected to the outer wall of the connecting plate one, the outer wall of the connecting plate two is slidably connected to the outer wall of the base plate, a reciprocating threaded rod is rotatably connected inside the connecting plate two, a gear is fixedly connected to the outer wall of the reciprocating threaded rod, a grinding block is threadedly connected to the outer wall of the reciprocating threaded rod, a toothed plate is meshed with the tooth end of the gear, and the lower surface of the toothed plate is fixedly connected to the upper surface of the base plate.

[0013] Preferably, the outer wall of the sliding plate is fixedly connected to a housing, the inner bottom wall of the housing is provided with a second spring, the outer wall of the second spring is provided with a transmission assembly, the upper surface of the transmission assembly is fixedly connected to a connecting rod, the inside of the transmission assembly is rotatably connected to a fixed shaft, the outer wall of the fixed shaft is fixedly connected to the inside of the housing, the outer wall of the transmission assembly is provided with a connecting assembly, the upper surface of the connecting assembly is fixedly connected to the outer wall of the scraper, and the outer wall of the connecting assembly is located on the inner bottom wall of the housing.

[0014] Preferably, the transmission assembly includes a second transmission block, the outer wall of the second spring is disposed on the outer wall of the second transmission block, the upper surface of the second transmission block is fixedly connected with a locking tooth, the upper surface of the second transmission block is fixedly connected to the lower surface of the connecting rod, and the interior of the second transmission block is rotatably connected to the outer wall of the fixed shaft.

[0015] Preferably, the connecting assembly includes a connecting post, the outer wall of the retaining tooth is disposed on the outer wall of the connecting post, a spring is disposed on the lower surface of the connecting post, the outer wall of the spring is disposed on the inner bottom wall of the outer casing, and the upper surface of the connecting post is fixedly connected to the outer wall of the scraper.

[0016] Preferably, the mesh plate has a groove inside, and the sliding plate is slidably connected to the inside of the mesh plate through the groove.

[0017] Working principle: When the scraper moves on the surface of the grinding plate, it will drive the grinding plate to move, which in turn will drive the support plate to slide inside the base plate. When the support plate moves, it will drive the sliding column to slide inside the fixed column, and at the same time, it will compress the spring. The limiting plate is used to limit the movement distance of the support plate. Through the cooperation between the limiting plate, the sliding column, the fixed column and the spring, it is possible to ensure that the scraper exerts a uniform force on the grinding plate each time, thereby improving the grinding quality. By rotating the transmission block one, the lead screw is driven to rotate, which in turn drives the limiting plate two to rotate. When the limiting plate two and the groove are misaligned, the grinding plate can be prevented from shifting during the rebound, which would cause uneven grinding by the scraper and affect the normal operation of subsequent work. When the limiting plate two and the groove are parallel, the operator can easily remove the grinding plate, which is convenient for the grinding plate to be replaced later. As the sliding plate moves, it also drives the connecting plate to move, which in turn drives the reciprocating threaded rod to move. When the reciprocating threaded rod moves, it drives the gear to move and rotates through the gear plate, which in turn drives the reciprocating threaded rod to rotate. When the reciprocating threaded rod rotates, it drives the grinding block to move. Through the movement of the grinding block, the burrs generated during the scraper grinding are removed, thereby further improving the grinding quality. By pressing the connecting rod, the transmission block two is rotated, which in turn rotates the locking teeth. When the locking teeth rotate, they lock or unlock the connecting column. When the connecting column is unlocked, the spring three releases its own elasticity, which pops the connecting column out. Since the connecting column and the scraper are fixedly connected, the scraper is popped out, thus achieving the effect of quickly disassembling the scraper with one click by pressing the connecting rod, which is convenient for future maintenance and replacement of the scraper.

[0018] This invention provides a polishing screen with a scraper. It has the following beneficial effects: 1. This invention uses a scraper to move a grinding plate, which in turn moves a support plate. When the support plate moves, it causes a sliding column to slide inside a fixed column. A spring is used to reset the sliding column, which in turn resets the grinding plate. After sliding a certain distance, the support plate contacts a limiting plate, thus restricting its movement. Through the cooperation between the support plate, the sliding column, the fixed column, the spring, and the support plate, the consistency of the grinding force is ensured, the grinding quality is improved, and the printed pattern is clear and the color is uniform, ultimately ensuring a high-quality output of the printed product.

[0019] 2. In this invention, when the transmission block rotates, it drives the lead screw to rotate, which in turn drives the limiting plate to rotate. When the limiting plate rotates, it will be misaligned or parallel to the grinding plate. When the limiting plate is misaligned with the grinding plate, it can prevent the grinding plate from shifting when it rebounds, thus avoiding affecting the subsequent grinding quality of the scraper.

[0020] 3. When the scraper moves the sliding plate, it will cause the connecting plate one to move synchronously, which in turn will cause the connecting plate two to slide on the outer wall of the base plate. When the connecting plate two slides, it will cause the reciprocating threaded rod to move, which will further drive the gear to rotate through the toothed plate. Since the gear and the reciprocating threaded rod are fixedly connected, the rotation of the gear will drive the reciprocating threaded rod to rotate synchronously. The grinding block will move under the drive of the reciprocating threaded rod. Through the rotation of the grinding block, the burrs generated during scraper grinding will be ground, thereby further improving the scraper grinding quality.

[0021] 4. This invention drives the transmission block two to rotate by pressing the connecting rod, which in turn drives the locking teeth to rotate. When the locking teeth rotate, they lock or unlock the connecting rod. When the connecting rod is unlocked, the spring three releases its own elastic force to pop the connecting rod out. Since the connecting rod and the scraper are fixedly connected, the scraper will pop out at the same time as the connecting rod pops out, thereby realizing the effect of quickly disassembling the scraper by pressing the connecting rod, which facilitates the maintenance and repair of the scraper by maintenance personnel. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the mesh layout structure of the present invention; Figure 3 for Figure 2 Enlarged view of point C in the middle; Figure 4 This is a partial structural diagram of the scraper of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial structural diagram of the support plate of the present invention; Figure 7 This is a partial structural diagram of the groove of the present invention; Figure 8 This is a schematic cross-sectional view of the fixed column structure of the present invention; Figure 9 This is a schematic diagram of a partial structure of the mesh plate of the present invention; Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 This is a partial structural diagram of the fixed shaft of the present invention.

[0023] The components are as follows: 1. Base plate; 2. Support block; 3. Mesh plate; 4. Scraper; 5. Slide groove; 6. Mesh cloth; 7. Support plate; 8. Limiting plate one; 9. Grinding plate; 10. Sliding column; 11. Fixed column; 12. Spring one; 13. Lead screw; 14. Transmission block one; 15. Limiting plate two; 16. Groove; 17. Sliding plate; 18. Outer shell; 19. Spring two; 20. Transmission block two; 21. Connecting rod; 22. Fixed shaft; 23. Clamping tooth; 24. Connecting column; 25. Spring three; 26. Connecting plate one; 27. Connecting plate two; 28. Reciprocating threaded rod; 29. ​​Gear; 30. Tooth plate; 31. Grinding block. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see the appendix Figure 1 - Appendix Figure 8This invention provides a grinding screen for a scraper, comprising a base plate 1, a support block 2 fixedly connected to the upper surface of the base plate 1, a screen plate 3 disposed on the upper surface of the support block 2, a mesh cloth 6 disposed inside the screen plate 3, a sliding plate 17 slidably connected inside the screen plate 3, a scraper 4 attached to the outer wall of the sliding plate 17, a grinding plate 9 disposed on the outer wall of the scraper 4, a support plate 7 attached to the lower surface of the grinding plate 9, the outer wall of the support plate 7 slidably connected to the inside of the base plate 1, a limiting plate 8 attached to the lower surface of the support plate 7, the outer wall of the limiting plate 8 fixedly connected to the inside of the base plate 1, a spring-loaded assembly disposed on the lower surface of the support plate 7, a fixing post 11 slidably connected to the outer wall of the spring-loaded assembly, and the lower surface of the fixing post 11 fixedly connected to the inner bottom wall of the base plate 1; Specifically, the support block 2 is used to provide support for the screen plate 3. The grinding plate 9 has a certain curvature. When the scraper 4 moves on the upper surface of the grinding plate 9, it will drive the grinding plate 9 to move under the influence of external force and the scraper 4's own weight, and further drive the support plate 7 to slide inside the base plate 1. When the support plate 7 slides, through the fixing action of the support plate 7 and the spring component, it will drive the spring component to slide inside the fixed column 11. The limiting plate 8 is used to limit the sliding distance of the support plate 7. Through the mutual cooperation between the limiting plate 8, the spring component and the fixed column 11, the grinding uniformity of the scraper 4 is improved.

[0026] Please see the appendix Figure 4 - Appendix Figure 8 The rebound assembly includes a sliding column 10, the upper surface of which is fixedly connected to the lower surface of the support plate 7, and a spring 12 is provided on the lower surface of the sliding column 10. The outer wall of the spring 12 is provided on the inner bottom wall of the fixed column 11. Specifically, when the support plate 7 moves, the fixed action of the support plate 7 and the sliding column 10 will cause the sliding column 10 to slide inside the fixed column 11. At the same time, the sliding column 10 and the fixed column 11 will cooperate to compress the spring 12. The spring 12 is used to reset the sliding column 10, thereby achieving the effect of resetting the support plate 7.

[0027] Please see the appendix Figure 1 - Appendix Figure 4 The support plate 7 is provided with a limiting component inside. The outer wall of the limiting component is fixedly connected to the limiting plate 15. The outer wall of the limiting plate 15 is slidably connected to the outer wall of the grinding plate 9. Specifically, the limiting component and the limiting plate 15 work together to limit the grinding plate 9, preventing the grinding plate 9 from shifting when it is pressed and rebounded, thus preventing the grinding work from continuing normally.

[0028] Please see the appendix Figure 1 - Appendix Figure 7The limiting assembly includes a lead screw 13, the outer wall of which is threadedly connected to the inside of the support plate 7, a transmission block 14 is fixedly connected to the upper surface of the lead screw 13, and the outer wall of the lead screw 13 is fixedly connected to the inside of the limiting plate 15. Specifically, by rotating the transmission block 14, the transmission block 14 and the lead screw 13 are fixed together, which in turn drives the lead screw 13 to rotate. When the lead screw 13 rotates, it is fixed together with the limiting plate 15, which in turn drives the limiting plate 15 to rotate.

[0029] Please see the appendix Figure 1 - Appendix Figure 7 The grinding plate 9 has a groove 16 inside, and the limiting plate 15 is slidably connected to the outer wall of the grinding plate 9 through the groove 16. Specifically, when the second limiting plate 15 rotates, it will be misaligned or parallel to the groove 16. When the second limiting plate 15 is misaligned with the groove 16, it can prevent the grinding plate 9 from shifting during springback, thus affecting the normal and continuous operation of the grinding work. When the second limiting plate 15 is parallel to the groove 16, it can achieve the effect of removing the grinding plate 9.

[0030] Please see the appendix Figure 1 - Appendix Figure 4 A connecting plate 26 is fixedly connected to the outer wall of the sliding plate 17. A connecting plate 27 is fixedly connected to the outer wall of the connecting plate 26. The outer wall of the connecting plate 27 is slidably connected to the outer wall of the base plate 1. A reciprocating threaded rod 28 is rotatably connected inside the connecting plate 27. A gear 29 is fixedly connected to the outer wall of the reciprocating threaded rod 28. A grinding block 31 is threadedly connected to the outer wall of the reciprocating threaded rod 28. A toothed plate 30 is meshed with the tooth end of the gear 29. The lower surface of the toothed plate 30 is fixedly connected to the upper surface of the base plate 1. Specifically, as the sliding plate 17 moves, it also drives the connecting plate 26 to move, which in turn drives the reciprocating threaded rod 28 to move. When the reciprocating threaded rod 28 moves, the fixed action of the reciprocating threaded rod 28 and the gear 29 causes the gear 29 to move at the tooth end of the toothed plate 30. When the gear 29 moves at the tooth end of the toothed plate 30, it will rotate, which in turn drives the reciprocating threaded rod 28 to rotate inside the connecting plate 27. When the reciprocating threaded rod 28 rotates, the threaded connection between the reciprocating threaded rod 28 and the grinding block 31 will drive the grinding block 31 to move, thereby polishing the burrs on the surface of the scraper 4 and further improving the polishing quality.

[0031] Please see the appendix Figure 9 - Appendix Figure 11The outer wall of the sliding plate 17 is fixedly connected to the outer shell 18. The inner bottom wall of the outer shell 18 is provided with a spring 19. The outer wall of the spring 19 is provided with a transmission assembly. The upper surface of the transmission assembly is fixedly connected to a connecting rod 21. The inside of the transmission assembly is rotatably connected to a fixed shaft 22. The outer wall of the fixed shaft 22 is fixedly connected to the inside of the outer shell 18. The outer wall of the transmission assembly is provided with a connecting assembly. The upper surface of the connecting assembly is fixedly connected to the outer wall of the scraper 4. The outer wall of the connecting assembly is located on the inner bottom wall of the outer shell 18. Specifically, pressing the connecting rod 21 causes the transmission component to rotate due to the fixing action of the connecting rod 21 and the transmission component. When the transmission component rotates, it cooperates with the outer casing 18 to compress the second spring 19. The fixed shaft 22 supports the rotation of the transmission component. When the transmission component rotates, it locks or unlocks the connecting component. When the connecting component is unlocked, the third spring 25 releases its own elasticity and pops out the connecting post 24. Through the fixing action of the connecting post 24 and the scraper 4, the effect of pressing the connecting rod 21 to quickly disassemble and replace the scraper 4 with one click is achieved.

[0032] Please see the appendix Figure 9 - Appendix Figure 11 The transmission assembly includes a second transmission block 20, the outer wall of a second spring 19 is disposed on the outer wall of the second transmission block 20, a locking tooth 23 is fixedly connected to the upper surface of the second transmission block 20, the upper surface of the second transmission block 20 is fixedly connected to the lower surface of the connecting rod 21, and the interior of the second transmission block 20 is rotatably connected to the outer wall of the fixed shaft 22. Specifically, when the connecting rod 21 moves, the connecting rod 21 and the second transmission block 20 will be fixed together, causing the second transmission block 20 to rotate. When the second transmission block 20 rotates, the second transmission block 20 and the locking tooth 23 will be fixed together, thereby causing the locking tooth 23 to rotate.

[0033] Please see the appendix Figure 9 - Appendix Figure 11 The connecting assembly includes a connecting post 24, the outer wall of the locking tooth 23 is disposed on the outer wall of the connecting post 24, a spring 25 is disposed on the lower surface of the connecting post 24, the outer wall of the spring 25 is disposed on the inner bottom wall of the outer casing 18, and the upper surface of the connecting post 24 is fixedly connected to the outer wall of the scraper 4. Specifically, spring 25 is used to pop out connecting post 24. When the locking tooth 23 rotates, it will lock or unlock connecting post 24. When the connecting post 24 is unlocked, spring 25 will release its own elasticity to pop out connecting post 24. Through the fixing action of connecting post 24 and scraper 4, the effect of popping out scraper 4 is achieved.

[0034] Please see the appendix Figure 1 - Appendix Figure 7 The inside of the mesh plate 3 is provided with a groove 5, and the sliding plate 17 is slidably connected to the inside of the mesh plate 3 through the groove 5; Specifically, the groove 5 is used to limit the running trajectory of the sliding plate 17, reducing the jamming and vibration caused by the uneven surface of the sliding plate 17 during the sliding process, and further improving the stability of the sliding plate 17 during operation.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can 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 grinding screen with scraper blades, comprising a base plate (1), characterized in that: A support block (2) is fixedly connected to the upper surface of the base plate (1). A mesh plate (3) is provided on the upper surface of the support block (2). A mesh cloth (6) is provided inside the mesh plate (3). A sliding plate (17) is slidably connected inside the mesh plate (3). A scraper (4) is attached to the outer wall of the sliding plate (17). A grinding plate (9) is provided on the outer wall of the scraper (4). A support plate (7) is attached to the lower surface of the grinding plate (9). The outer wall of the support plate (7) is slidably connected to the inside of the base plate (1). The lower surface of the support plate (7) is attached to the limiting plate one (8), the outer wall of the limiting plate one (8) is fixedly connected to the inside of the base plate (1), the lower surface of the support plate (7) is provided with a spring-loaded assembly, the outer wall of the spring-loaded assembly is slidably connected to a fixing column (11), the lower surface of the fixing column (11) is fixedly connected to the inner bottom wall of the base plate (1), the outer wall of the sliding plate (17) is fixedly connected to a connecting plate one (26), the outer wall of the connecting plate one (26) is fixedly connected to a connecting plate two (27), the connecting plate two (27) The outer wall of the sliding plate (27) is slidably connected to the outer wall of the base plate (1). The inner wall of the connecting plate (27) is rotatably connected to a reciprocating threaded rod (28). The outer wall of the reciprocating threaded rod (28) is fixedly connected to a gear (29). The outer wall of the reciprocating threaded rod (28) is threadedly connected to a grinding block (31). The tooth end of the gear (29) is meshed with a toothed plate (30). The lower surface of the toothed plate (30) is fixedly connected to the upper surface of the base plate (1). The outer wall of the sliding plate (17) is fixedly connected to a shell (18). A second spring (19) is provided on the inner bottom wall of the outer shell (18). A transmission assembly is provided on the outer wall of the second spring (19). A connecting rod (21) is fixedly connected to the upper surface of the transmission assembly. A fixed shaft (22) is rotatably connected inside the transmission assembly. The outer wall of the fixed shaft (22) is fixedly connected to the inside of the outer shell (18). A connecting assembly is provided on the outer wall of the transmission assembly. The upper surface of the connecting assembly is fixedly connected to the outer wall of the scraper (4). The outer wall of the connecting assembly is provided on the inner bottom wall of the outer shell (18).

2. The grinding screen for a scraper according to claim 1, characterized in that: The rebound assembly includes a sliding column (10), the upper surface of which is fixedly connected to the lower surface of the support plate (7), and a spring (12) is provided on the lower surface of the sliding column (10), one end of which is provided on the inner bottom wall of the fixed column (11).

3. The grinding screen for a scraper according to claim 1, characterized in that: The support plate (7) is provided with a limiting component inside. The outer wall of the limiting component is fixedly connected to a limiting plate two (15). The outer wall of the limiting plate two (15) is slidably connected to the outer wall of the grinding plate (9).

4. The grinding screen for a scraper according to claim 3, characterized in that: The limiting assembly includes a lead screw (13), the outer wall of which is threadedly connected to the inside of the support plate (7), a transmission block (14) is fixedly connected to the upper surface of the lead screw (13), and the outer wall of the lead screw (13) is fixedly connected to the inside of the limiting plate (15).

5. The grinding screen for a scraper according to claim 3, characterized in that: The grinding plate (9) has a groove (16) inside, and the limiting plate (15) is slidably connected to the outer wall of the grinding plate (9) through the groove (16).

6. The grinding screen for a scraper according to claim 1, characterized in that: The transmission assembly includes a second transmission block (20), the outer wall of the second spring (19) is disposed on the outer wall of the second transmission block (20), the upper surface of the second transmission block (20) is fixedly connected with a tooth (23), the upper surface of the second transmission block (20) is fixedly connected to the lower surface of the connecting rod (21), and the interior of the second transmission block (20) is rotatably connected to the outer wall of the fixed shaft (22).

7. A grinding screen for scraping blades according to claim 6, characterized in that: The connecting assembly includes a connecting post (24), the outer wall of the locking tooth (23) is disposed on the outer wall of the connecting post (24), a spring three (25) is disposed on the lower surface of the connecting post (24), the outer wall of the spring three (25) is disposed on the inner bottom wall of the outer shell (18), and the upper surface of the connecting post (24) is fixedly connected to the outer wall of the scraper (4).

8. The grinding screen for a scraper according to claim 1, characterized in that: The mesh plate (3) has a groove (5) inside, and the sliding plate (17) is slidably connected to the inside of the mesh plate (3) through the groove (5).

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