A dustproof grinding device

Abstract

This utility model discloses a dustproof grinding device, including a workbench, a grinding box, and a movable feeding platform. The grinding box is located in the middle of the workbench, and a grinding motor is located on one side of the grinding box. The output end of the grinding motor extends into the interior of the grinding box and is connected to a grinding wheel. A dust collection box and a dust pump are located inside a support box at the bottom of the workbench. The input pipe of the dust pump extends into the interior of the dust collection box and is connected to a filter box. A main pipe is located at the top of the dust collection box, and the other end of the main pipe extends to the top of the grinding box and is connected to a second dust collection pipe. Both ends of the second dust collection pipe are connected to connecting pipes, and the ends of the two connecting pipes are respectively connected to two second dust collection pipes on the same side of the grinding box. This utility model, through the dual dust collection design of the inner cover and the second dust collection pipes, ensures that the dust generated during the grinding process can be collected in a timely and effective manner, reducing cleaning and maintenance time and improving overall work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of polishing devices, specifically a polishing device with dustproof function. Background Technology

[0002] In furniture manufacturing and panel processing, sanding is a crucial step in improving the smoothness of panel surfaces and ensuring the quality of subsequent coating or assembly. However, sanding generates a large amount of dust, mainly consisting of wood fiber fragments, wood chips (ranging in size from a few micrometers to hundreds of micrometers), and a small amount of impurities adhering to the panel surface. This dust not only directly affects the cleanliness of the sanded panel surface (e.g., dust adhesion leading to secondary pollution), but also poses a serious threat to the health of operators. Long-term inhalation of wood dust can easily cause respiratory diseases, pneumoconiosis, and other illnesses. Furthermore, dust spreading into the workshop environment may increase the safety hazards of fire and explosion.

[0003] Existing board grinding equipment has many shortcomings in dust prevention and dust treatment, specifically as follows: Traditional grinding equipment mostly adopts a single dust suction structure, and the coverage of a single suction port is limited, making it difficult to capture escaped dust, resulting in a large amount of dust spreading to the workbench and workshop environment, resulting in poor dust prevention effect; In addition, the feeding mechanism of existing equipment is mostly designed with fixed size, which is difficult to adapt to the processing needs of boards with different thicknesses and widths. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device with dustproof function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof grinding device, comprising a worktable, a grinding box, and a movable feeding platform. A feeding motor is provided at one end of the worktable, the output end of which extends into the interior of the worktable and is connected to a lead screw. A support platform is provided on the lead screw via a threaded block. Miniature electric push rods are provided at the four corners of the bottom of the support platform. The output ends of the miniature electric push rods extend to the top of the support platform and are provided with a movable feeding platform. Threaded rods with clamping blocks are arranged side by side on both sides of the top of the movable feeding platform via support plates. A grinding box is provided in the middle of the workbench. A grinding motor is provided on one side of the grinding box. The output end of the grinding motor extends into the interior of the grinding box and is connected to a grinding wheel. An inner cover is provided on the outside of the grinding wheel. A dust collection pipe is provided inside the inner cover. Dust collection pipes are embedded in the side walls at the four corners of the grinding box. The support box at the bottom of the workbench is equipped with a dust collection box and a dust pump. The input pipe of the dust pump extends into the dust collection box and is connected to a filter box. The top of the dust collection box is equipped with a main pipe. The other end of the main pipe extends to the top of the grinding box and is connected to a second dust collection pipe. Both ends of the second dust collection pipe are connected to connecting pipes. The two connecting pipes are respectively connected to two second dust collection pipes on the same side of the grinding box. The main pipe is also equipped with a first dust collection pipe. The other end of the first dust collection pipe is connected to the first dust collection pipe inside the inner cover.

[0006] Preferably, the inner walls on both sides of the workbench are provided with sliding grooves, the sliding grooves are provided along the length of the workbench, and the two sides of the support platform are provided with stabilizing sliders extending into the sliding grooves.

[0007] Preferably, an electromagnetic regulating valve is provided on the first suction pipe, and an electromagnetic regulating valve is provided on the main pipe between the first and second suction pipes. The electromagnetic regulating valves are individually connected to a controller provided on one side of the workbench.

[0008] Preferably, both ends of the inner cover are connected to the drive shaft of the grinding wheel via bearings, and both ends of the inner cover are connected to the inner walls of both sides of the grinding box via cantilever arms. The outer wall of the grinding box is provided with a sound-insulating outer layer.

[0009] Preferably, the inner sides of the two support plates are provided with strip grooves, each strip groove is provided with a sliding block, and one end of the threaded rod passes through the sliding block and is connected to a knob.

[0010] Preferably, the bottom of the inner cover is uniformly provided with a first dust collection hole that communicates with a first dust collection pipe, and the four corners of the inner side of the grinding box are uniformly provided with a second dust collection hole that communicates with a second dust collection pipe.

[0011] Preferably, the interior of the filter box is sequentially provided with a metal woven mesh, a polypropylene meltblown cloth, a HEPA filter, and an activated carbon fiber felt.

[0012] This utility model provides a grinding device with dustproof function. Compared with the prior art, it has significant advantages and positive effects in terms of dustproof effect, ease of operation, work efficiency and environmental protection, as detailed below: 1. By installing an inner cover on the outside of the grinding wheel and a dust collection pipe inside the inner cover, which connects to a dust suction port, a dust suction pipe, and a main pipe, a highly efficient initial dust adsorption system is formed. The inner cover adapts to the workpiece surface as the grinding wheel moves, effectively adsorbing most of the initial dust and preventing dust diffusion.

[0013] Dust collection pipes are embedded inside the side walls at the four corners of the grinding box. These pipes connect to suction holes, suction pipes, and the main pipe, forming a secondary dust absorption system. This system can reabsorb dust that is not completely absorbed by the inner cover inside the grinding box, further improving the dustproof effect.

[0014] 2. The output end of the feeding motor extends into the worktable and connects to a lead screw. A support platform is set up through a threaded block. Miniature electric push rods are installed at the four corners of the bottom of the support platform. The output ends of the push rods extend above the support platform and are used to set up a movable feeding platform. Under the action of the miniature electric push rods, the movable feeding platform can be raised and lowered to accommodate workpieces of different sizes.

[0015] The support plate has a groove on its inner side, and a sliding block is installed inside the groove. One end of the threaded rod passes through the sliding block and is connected to a knob. By rotating the threaded rod with the knob, the clamping position can be easily and quickly adjusted by using the clamping block to clamp and position the material, thus improving the flexibility and convenience of operation.

[0016] This invention features a dual dust collection design with an inner cover and a second dust collection pipe, ensuring that the dust generated during the grinding process can be collected in a timely and effective manner, reducing cleaning and maintenance time and improving overall work efficiency. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a schematic diagram of the internal side view of the support box and grinding box of this utility model; Figure 3 This is a top view cross-sectional structural diagram of the internal structure of the grinding box of this utility model; Figure 4 This is a schematic diagram of the movable feeding platform structure of this utility model; In the diagram: 1. Workbench; 2. Slide rail; 3. Suction pipe 1; 4. Solenoid regulating valve 1; 5. Main pipe; 6. Solenoid regulating valve 2; 7. Connecting pipe; 8. Suction pipe 2; 9. Grinding box; 10. Stabilizing slider; 11. Feeding motor; 12. Movable feeding table; 13. Strip groove; 14. Support plate; 15. Controller; 16. Grinding motor; 17. Lead screw; 18. Threaded block; 19. Support platform; 20. Miniature electric actuator; 21. Sliding block 22. Knob; 23. Threaded rod; 24. Clamping block; 25. Sound insulation outer layer; 26. Dust collection pipe two; 27. Cantilever; 28. Inner cover; 29. ​​Dust suction port one; 30. Dust collection pipe one; 31. Bearing; 32. Grinding wheel; 33. Support box; 34. Dust collection box; 35. Filter box; 36. Metal woven mesh; 37. Polypropylene meltblown cloth; 38. HEPA filter; 39. Activated carbon fiber felt; 40. Dust pump; 41. Dust suction port two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-4 An embodiment of this utility model provides a dustproof grinding device, including a workbench 1, a grinding box 9, and a movable feeding platform 12. A feeding motor 11 is provided at one end of the workbench 1. The output end of the feeding motor 11 extends into the interior of the workbench 1 and is connected to a lead screw 17. A support platform 19 is provided on the lead screw 17 through a threaded block 18. Slide grooves 2 are provided on the inner walls of both sides of the workbench 1. The slide grooves 2 are arranged along the length direction of the workbench 1. Stable sliders 10 extending into the slide grooves 2 are provided on both sides of the support platform 19.

[0020] The lead screw 17 is connected to the support platform 19 via the threaded block 18. The support platform 19 can move along the axial direction of the lead screw 17 inside the worktable 1.

[0021] Each of the two inner walls of the worktable 1 is provided with a slide groove 2, which extends along the length of the worktable 1. The internal structure of the slide groove 2 is flat to ensure that the stable slider 10 slides smoothly within it.

[0022] A stabilizing slider 10 is provided on each side of the support platform 19, and the stabilizing slider 10 extends into the interior of the slide groove 2. The shape of the stabilizing slider 10 matches the inner wall of the slide groove 2 to ensure that the support platform 19 remains stable during movement.

[0023] Miniature electric push rods 20 are installed at the four corners of the bottom of the support platform 19. The output end of the miniature electric push rods 20 extends to the top of the support platform 19 and is equipped with a movable feeding platform 12. On both sides of the top of the movable feeding platform 12, threaded rods 23 with clamping blocks 24 are arranged side by side through the support plate 14.

[0024] The inner sides of the two support plates 14 are provided with strip grooves 13, and each strip groove 13 is provided with a sliding block 21. One end of the threaded rod 23 passes through the sliding block 21 and is connected to a knob 22.

[0025] The support platform 19 is the basic component of the entire device, with a miniature electric actuator 20 located at each of its four corners. The support platform 19 is made of high-strength material to ensure the stability and durability of the device. Mounting holes are provided at the bottom of the support platform 19 for securing the miniature electric actuators 20.

[0026] The output end of the miniature electric actuator 20 extends above the support platform 19 and connects to the movable feeding platform 12. Each miniature electric actuator 20 is electrically driven and can realize the lifting and lowering movement of the movable feeding platform 12. The selection of the miniature electric actuator 20 should take into account its thrust and stroke to meet the working requirements of the device.

[0027] The movable feeding platform 12 is located above the support platform 19 and moves up and down by being driven by a miniature electric push rod 20. Threaded rods 23 are arranged side-by-side on both sides of the top of the movable feeding platform 12 via support plates 14. The movable feeding platform 12 should be made of lightweight material with sufficient strength to ensure its stability and durability during movement.

[0028] Support plates 14 are fixed to the top of both sides of the movable feeding table 12 to support the threaded rod 23. The support plates 14 are made of sturdy metal material to ensure that they can withstand the weight of the threaded rod 23 and the clamping block 24 and the forces during the movement.

[0029] The threaded rod 23 is arranged side-by-side with the support plate 14, and a clamping block 24 is fixed on it. The clamping block 24 is used to clamp the item to be fed, and its material and structural design should ensure the firmness and reliability of the clamping. One end of the threaded rod 23 passes through the sliding block 21 and is fixed by the knob 22.

[0030] Each of the two support plates 14 has a strip groove 13 on its inner side, and a sliding block 21 is disposed inside the strip groove 13. The sliding block 21 can slide freely within the strip groove 13 to adjust the position of the threaded rod 23 and the clamping block 24. The material of the sliding block 21 should have good wear resistance and lubricity to ensure its smooth movement within the strip groove 13.

[0031] Knob 22 is connected to one end of threaded rod 23. By rotating knob 22, the position of threaded rod 23 within sliding block 21 can be adjusted, thereby adjusting the position of clamping block 24. Knob 22 should be designed for easy operation and have a certain locking function to prevent threaded rod 23 from loosening during movement.

[0032] A grinding box 9 is located in the middle of the workbench 1. Dust collection pipes 26 are embedded in the side walls at all four corners of the grinding box 9. A grinding motor 16 is located on one side of the grinding box 9. The output end of the grinding motor 16 extends into the interior of the grinding box 9 and is connected to a grinding wheel 32. An inner cover 28 is located outside the grinding wheel 32. A dust collection pipe 30 is located inside the inner cover 28. Both ends of the inner cover 28 are connected to the drive shaft of the grinding wheel 32 via bearings 31, and both ends of the inner cover 28 are connected to the inner walls of both sides of the grinding box 9 via cantilever arms 27. A sound-insulating outer layer 25 is provided on the outer wall of the grinding box 9. The grinding box 9, located in the middle of the workbench 1, is designed according to actual usage requirements, and its internal space is sufficient to accommodate various tools and materials required for grinding operations.

[0033] Dust collection pipes 26 are embedded inside the four corner side walls of the grinding box 9. The material of the dust collection pipes 26 is preferably a high-temperature resistant and corrosion-resistant metal material to ensure that they will not deform during long-term use.

[0034] A grinding motor 16 is installed on one side of the grinding box 9. The power of the grinding motor 16 is selected according to the specifications of the grinding wheel 32 and the workload. The output end of the grinding motor 16 extends into the interior of the grinding box 9 via a drive shaft and is connected to the grinding wheel 32. The grinding wheel 32 is preferably made of a high-hardness wear-resistant material, such as a diamond coating, to ensure efficient grinding results.

[0035] An inner cover 28 is provided on the outer side of the grinding wheel 32. The inner cover 28 is preferably made of transparent and impact-resistant polycarbonate material so that the operator can observe the grinding process. A dust collection pipe 30 is provided inside the inner cover 28. The dust collection pipe 30 is connected to the dust collection pipe 26 through a pipe to form a dual dust collection system to ensure efficient dust collection.

[0036] Both ends of the inner cover 28 are connected to the drive shaft of the grinding wheel 32 via bearings 31. The bearings 31 are preferably made of high-precision, low-noise ball bearings to ensure the smoothness and durability of the grinding wheel 32's rotation. Both ends of the inner cover 28 are also connected to the inner walls of both sides of the grinding box 9 via cantilever arms 27. The cantilever arms 27 are preferably made of high-strength steel to ensure the stability of the inner cover 28.

[0037] The outer wall of the grinding box 9 is provided with a sound insulation outer layer 25. The material of the sound insulation outer layer 25 is preferably sound insulation cotton or sound insulation board, so as to effectively reduce the noise generated during the grinding process and improve the working environment.

[0038] The support box 33 at the bottom of the workbench 1 is equipped with a dust collection box 34 and a dust pump 40. The input pipe of the dust pump 40 extends into the dust collection box 34 and is connected to a filter box 35. The filter box 35 is equipped with a metal woven mesh 36, a polypropylene meltblown cloth 37, a HEPA filter 38, and an activated carbon fiber felt 39 in sequence.

[0039] The bottom of the workbench 1 is equipped with a support box 33, which has a rectangular structure and ample internal space to accommodate the dust collection box 34 and the dust pump 40. The support box 33 is made of high-strength steel to ensure overall stability and durability.

[0040] The dust collection box 34 is located inside the support box 33, and its volume is designed to be 50 liters, which is sufficient to hold a certain amount of dust and impurities. The dust collection box 34 is made of corrosion-resistant plastic and has a dust discharge port at the bottom for easy regular cleaning.

[0041] A vacuum pump 40 is installed next to the dust collection box 34, and its inlet pipe 41 extends into the interior of the dust collection box 34. The vacuum pump 40 has a power of 1200W and can generate sufficient suction to draw dust from the workbench into the dust collection box 34. The outlet pipe 42 of the vacuum pump 40 is connected to the inlet of the filter box 35.

[0042] The filter box 35 is located above the dust pump 40, and inside it are arranged in sequence a metal woven mesh 36, a polypropylene meltblown cloth 37, a HEPA filter 38, and an activated carbon fiber felt 39.

[0043] Metal woven mesh 36: Located at the front end of filter box 35, it is mainly used to filter larger particles and impurities, preventing them from entering subsequent filter layers.

[0044] Polypropylene meltblown fabric 37: Following the metal woven mesh 36, it can effectively filter fine dust particles and further purify the air.

[0045] HEPA filter 38: Located after polypropylene meltblown fabric 37, it has a filtration efficiency of up to 99.97%, ensuring air cleanliness.

[0046] Activated carbon fiber felt 39: Located at the rear end of the filter box 35, it is mainly used to adsorb harmful gases and odors in the air, further improving air quality.

[0047] The top of the dust collection box 34 is equipped with a main pipe 5, the other end of which extends to the top of the grinding box 9 and is connected to a second suction pipe 8. Both ends of the second suction pipe 8 are connected to connecting pipes 7. The two ends of the two connecting pipes 7 are respectively connected to two dust collection pipes 26 on the same side of the grinding box 9. Dust collection holes 41 that communicate with the second dust collection pipes 26 are evenly arranged at the four corners of the inner side of the grinding box 9. The main tube 5 is also equipped with a vacuum pipe 3, the other end of which is connected to the dust collection pipe 30 inside the inner cover 28.

[0048] The bottom of the inner cover 28 is evenly provided with dust suction holes 29 that communicate with the dust collection pipe 30.

[0049] A main pipe 5 is provided on the top of the dust collection box 34. One end of the main pipe 5 is fixed to the top of the dust collection box 34, and the other end extends to the top of the grinding box 9. The main pipe 5 is preferably made of a high-strength and corrosion-resistant metal to ensure its stability and durability in long-term use.

[0050] At one end of the main pipe 5 extending to the top of the grinding box 9, a second suction pipe 8 is connected. Both ends of the second suction pipe 8 are connected to connecting pipes 7. Specifically, one end of the connecting pipe 7 is connected to one end of the second suction pipe 8, and the other end is connected to the two dust collection pipes 26 on the same side of the grinding box 9. The design of the connecting pipes 7 should ensure a secure connection and good sealing to prevent dust leakage.

[0051] At the four corners of the inner side of the grinding box 9, there are suction holes 41 that are connected to the dust collection pipe 26. The diameter and number of suction holes 41 should be optimized according to actual usage requirements to ensure that the dust generated during the grinding process can be effectively sucked into the dust collection pipe 26 and finally enter the dust collection box 34 through the connecting pipe 7 and the suction pipe 8.

[0052] In addition, the main pipe 5 is also equipped with a suction pipe 3. One end of the suction pipe 3 is connected to the main pipe 5, and the other end is connected to the dust collection pipe 30 inside the inner cover 28. The material and connection method of the suction pipe 3 are similar to those of the suction pipe 8 to ensure the overall consistency and reliability of the system.

[0053] The bottom of the inner cover 28 is evenly provided with suction holes 29 that communicate with the dust collection pipe 30. The design of the suction holes 29 should ensure that the dust inside the inner cover 28 can be evenly and efficiently sucked into the dust collection pipe 30 and finally enter the dust collection box 34 through the suction pipe 3.

[0054] An electromagnetic regulating valve 4 is installed on the first suction pipe 3, and an electromagnetic regulating valve 6 is installed on the main pipe 5 between the first suction pipe 3 and the second suction pipe 8. The electromagnetic regulating valve 4 and the electromagnetic regulating valve 6 are respectively connected to the controller 15 installed on one side of the workbench 1.

[0055] The electromagnetic regulating valve 4 is installed on the suction pipe 3. The electromagnetic regulating valve 4 is used to control the opening and closing of the suction pipe 3, thereby adjusting the suction effect.

[0056] The electromagnetic regulating valve 4 is connected to the controller 15 separately via a wire and receives control signals from the controller 15.

[0057] Solenoid regulating valve 26 is installed on the main pipe 5. Solenoid regulating valve 26 is used to control the opening and closing of the main pipe 5, thereby adjusting the dust collection effect.

[0058] The electromagnetic regulating valve 6 is connected to the controller 15 separately via a wire and receives control signals from the controller 15.

[0059] In this embodiment, the material to be polished is placed on the movable feeding table 12. Based on the material size, the sliding block 21 is pushed to slide within the strip groove 13, adjusting the positions of the threaded rod 23 and the clamping block 24. The knob 22 is rotated to clamp the clamping block 24 onto both sides of the material, ensuring the material is securely fixed. The micro electric push rod 20 is activated via the controller 15 to drive the movable feeding table 12 to rise and fall, matching the height of the surface to be polished with the polishing wheel 32. After adjustment, the micro electric push rod 20 is turned off.

[0060] The dust pump 40 is turned on by the controller 15, and the electromagnetic regulating valve 4 and the electromagnetic regulating valve 6 are adjusted to the open state, so that the dust collection pipe 30, the suction pipe 3, the dust collection pipe 26, the connecting pipe 7, the suction pipe 28 and the main pipe 5 form a passage, ensuring that the suction hole 29 (bottom of the inner cover 28) and the suction hole 41 (four corners inside the grinding box 9) generate suction.

[0061] The grinding motor 16 is started by the controller 15, which drives the grinding wheel 32 to rotate. The inner cover 28 is synchronously and stably positioned with the grinding wheel 32 drive shaft through the bearing 31, and the sound insulation outer layer 25 reduces noise diffusion.

[0062] Start the feeding motor 11, its output end drives the lead screw 17 to rotate, the threaded block 18 drives the support platform 19 to move along the axial direction of the lead screw 17, and the stabilizing sliders 10 on both sides of the support platform 19 slide along the slide groove 2 to maintain stability; the movable feeding platform 12 carries the plate into the grinding box 9 step by step, the grinding wheel 32 grinds the surface of the plate, and the dust generated enters the dust collection pipe 30 through the dust suction hole 29, and then flows into the main pipe 5 through the dust suction pipe 3. The free dust enters the dust collection pipe 26 through the dust suction hole 41, and flows into the main pipe 5 through the connecting pipe 7 and the dust suction pipe 28, and finally enters the dust collection box 34.

[0063] Dust in the dust collection box 34 enters the filter box 35 with the airflow, and is successively intercepted by the metal woven mesh 36 for large wood chips, filtered by the polypropylene meltblown cloth 37 for fine dust, purified by the HEPA filter 38 for micro-dust, and adsorbed by the activated carbon fiber felt 39 before being discharged with clean airflow.

[0064] After the board has completely passed through the grinding box 9, turn off the feeding motor 11. After the board exits the grinding box 9, turn off the grinding motor 16. Finally, turn off the dust pump 40 and the electromagnetic regulating valves 4 and 6.

[0065] Loosen knob 22 and remove the polished plate; regularly clean the dust in dust collection box 34, and replace or clean the metal woven mesh 36, polypropylene meltblown cloth 37, HEPA filter 38 and activated carbon fiber felt 39 in filter box 35 according to usage.

[0066] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0067] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0069] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dustproof grinding device, comprising a worktable (1), a grinding box (9), and a movable feeding table (12), characterized in that: One end of the workbench (1) is provided with a feeding motor (11). The output end of the feeding motor (11) extends into the interior of the workbench (1) and is connected to a lead screw (17). The lead screw (17) is provided with a support platform (19) through a threaded block (18). Miniature electric push rods (20) are provided at the four corners of the bottom of the support platform (19). The output end of the miniature electric push rods (20) extends to the top of the support platform (19) and is provided with a movable feeding platform (12). The top sides of the movable feeding platform (12) are provided with threaded rods (23) with clamping blocks (24) arranged side by side through a support plate (14). A grinding box (9) is provided in the middle of the workbench (1). A grinding motor (16) is provided on one side of the grinding box (9). The output end of the grinding motor (16) extends into the interior of the grinding box (9) and is connected to a grinding wheel (32). An inner cover (28) is provided on the outside of the grinding wheel (32). A dust collection pipe (30) is provided inside the inner cover (28). Dust collection pipes (26) are embedded in the side walls at the four corners of the grinding box (9). The support box (33) at the bottom of the workbench (1) is equipped with a dust collection box (34) and a dust pump (40). The input pipe of the dust pump (40) extends into the dust collection box (34) and is connected to a filter box (35). The top of the dust collection box (34) is equipped with a main pipe (5). The other end of the main pipe (5) extends into the top of the grinding box (9) and is connected to a second dust collection pipe (8). Both ends of the second dust collection pipe (8) are connected to connecting pipes (7). The two ends of the two connecting pipes (7) are respectively connected to two second dust collection pipes (26) on the same side of the grinding box (9). The main pipe (5) is also equipped with a first dust collection pipe (3). The other end of the first dust collection pipe (3) is connected to the first dust collection pipe (30) inside the inner cover (28).

2. A grinding device with dustproof function according to claim 1, characterized in that: The inner walls on both sides of the workbench (1) are provided with sliding grooves (2), which are arranged along the length of the workbench (1), and the two sides of the support platform (19) are provided with stabilizing sliders (10) extending into the sliding grooves (2).

3. A grinding device with dustproof function according to claim 1, characterized in that: The first suction pipe (3) is equipped with an electromagnetic regulating valve (4), and the main pipe (5) between the first suction pipe (3) and the second suction pipe (8) is equipped with an electromagnetic regulating valve (6). The first electromagnetic regulating valve (4) and the second electromagnetic regulating valve (6) are respectively connected to the controller (15) set on one side of the workbench (1).

4. A grinding device with dustproof function according to claim 1, characterized in that: Both ends of the inner cover (28) are connected to the drive shaft of the grinding wheel (32) through bearings (31), and both ends of the inner cover (28) are connected to the inner walls of both sides of the grinding box (9) through cantilever (27). The outer wall of the grinding box (9) is provided with a sound insulation outer layer (25).

5. A grinding device with dustproof function according to claim 1, characterized in that: The inner sides of the two support plates (14) are provided with strip grooves (13), and each strip groove (13) is provided with a sliding block (21). One end of the threaded rod (23) passes through the sliding block (21) and is connected to a knob (22).

6. A grinding device with dustproof function according to claim 1, characterized in that: The bottom of the inner cover (28) is uniformly provided with a first dust collection hole (29) that communicates with the first dust collection pipe (30), and the four corners of the inner side of the grinding box (9) are uniformly provided with a second dust collection hole (41) that communicates with the second dust collection pipe (26).

7. A grinding device with dustproof function according to claim 1, characterized in that: The filter box (35) is provided with a metal woven mesh (36), a polypropylene meltblown cloth (37), a HEPA filter (38), and an activated carbon fiber felt (39) in sequence inside.

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