Metal roller polishing mechanism

Abstract

The utility model discloses a metal roller polishing mechanism which comprises a polishing table, a first U-shaped frame and a second U-shaped frame which are symmetrically arranged are arranged at the top end of the polishing table, guide rollers are arranged in the first U-shaped frame and the second U-shaped frame, and the two sets of guide rollers are connected with the first U-shaped frame and the second U-shaped frame through first rotating shafts respectively. The two first rotating shafts are connected through a driving assembly, a vertical frame is arranged on one side of the top end of the grinding table, and a transverse frame is arranged on one side of the vertical frame. The grinding device has the beneficial effects that the first U-shaped frame, the second U-shaped frame, the guide roller, the first rotating shaft and the driving assembly are arranged, so that the metal roller can be driven to automatically rotate, the outer wall of the metal roller can be comprehensively ground conveniently, manual rotation of the metal roller is not needed, physical strength is saved, dust generated in the grinding process can be collected and treated through the dust collection assembly, and the working efficiency is improved. And the situation that the air drifts to the surrounding environment and is sucked mistakenly to affect the body health of people is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a metal roller grinding mechanism. Background Art

[0002] Grinding is a type of surface modification technology. It generally refers to a processing method that uses rough objects (such as sandpaper containing higher hardness particles) to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness.

[0003] When grinding a metal drum, it is quite laborious for personnel to actively roll the drum. Dust is generated during the grinding process, and inhalation of large amounts of dust may cause harm to the body.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a metal roller grinding mechanism to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A metal drum grinding mechanism comprises a grinding table, wherein the top of the grinding table is provided with a U-shaped frame 1 and a U-shaped frame 2 which are symmetrically arranged, and guide rollers are provided in the U-shaped frame 1 and the U-shaped frame 2, respectively, and the two groups of guide rollers are connected to the U-shaped frame 1 and the U-shaped frame 2 through a rotating shaft 1, and the two groups of rotating shaft 1 are connected through a driving assembly. A vertical frame is provided on one side of the top of the grinding table, and a horizontal frame is provided on one side of the vertical frame. The horizontal frame is connected to the vertical frame through a lifting assembly, and a grinding motor is provided at the bottom end of the horizontal frame. The grinding motor is connected to the horizontal frame through a horizontal moving assembly, and a grinding disk is provided at the driving end of the grinding motor. The horizontal moving assembly comprises a travel hole 1 opened at the top of the horizontal frame, a screw rod 1 is provided in the travel hole 1, and a moving block 1 matching the travel hole 1 is provided on the outer wall of the screw rod 1, and the bottom end of the moving block 1 extends to the outside of the horizontal frame and is connected to the grinding motor, and a dust suction assembly is provided on one side of the grinding disk.

[0008] Preferably, symmetrically arranged positioning plates are provided at both ends of the guide roller.

[0009] Preferably, the driving assembly includes an L-shaped mounting seat provided on one side of a U-shaped frame, a driving motor is provided on one side of the L-shaped mounting seat, two groups of rotating shafts extend to the outside of the U-shaped frame one and the U-shaped frame two on the same side respectively and are connected to pulleys, the two groups of pulleys are connected by a transmission belt, and a driving end of the driving motor is connected to the axis of one group of pulleys.

[0010] Preferably, the screw rod is connected to the cross frame through a bearing, one side of the screw rod extends outside the cross frame and is connected to a driving end of a forward and reverse motor, and a threaded hole matching the screw rod is provided on the moving block.

[0011] Preferably, the lifting assembly includes a travel hole 2 opened on one side of the vertical frame, a screw rod 2 is provided in the travel hole 2, and a moving block 2 matching the travel hole 2 is sleeved on the outer wall of the screw rod 2, and one side of the moving block 2 extends outside the vertical frame and is connected to the horizontal frame.

[0012] Preferably, the second screw rod is connected to the stand through the second bearing, the top end of the second screw rod extends outside the stand to be connected to the second driving end of the forward and reverse motors, and the second moving block is provided with two threaded holes matching the second screw rod.

[0013] Preferably, the dust suction assembly includes a dust suction box outside the travel hole and located on one side of the moving block, symmetrically arranged dust suction hoods are provided on both sides of the grinding disc, the dust suction hoods are connected to the moving block through a connecting rod, the two groups of dust suction hoods are connected to the dust suction box through a Y-shaped conveying pipe, an exhaust hole is provided at the top of the dust suction box, an exhaust fan is provided in the exhaust hole, a partition is provided in the dust suction box, symmetrically arranged ventilation holes are provided at the top of the partition, a filter is provided in the ventilation hole, the filter is connected to the partition through an elastic component, a symmetrically arranged dust collecting groove is provided at the bottom end of the dust suction box, and a clearance door matching the dust collecting groove is provided at the bottom end of the dust suction box.

[0014] Preferably, the elastic component includes a symmetrically arranged guide rod in the ventilation hole, a slider is provided on the outer wall of the guide rod, a spring is provided at the bottom end of the slider and located on the outer wall of the guide rod, the slider is connected to the partition through the spring, one side of the slider is connected to the filter, a transversely arranged rotating shaft 2 is provided at the top of the partition, a symmetrically arranged pressure plate is provided on the outer wall of the rotating shaft 2, a roller is provided on the top of the pressure plate, and one side of the rotating shaft 2 extends to the outside of the dust box and is connected to the driving end of the driving motor 2.

[0015] The beneficial effects of the utility model are as follows: by arranging U-shaped frame 1, U-shaped frame 2, guide roller, rotating shaft 1 and driving assembly, the metal roller can be driven to rotate automatically to facilitate comprehensive grinding of its outer wall, without the need for personnel to manually rotate the metal roller, thus saving physical effort; by arranging a dust collection assembly, the dust generated during the grinding process can be collected and processed to prevent it from drifting into the surrounding environment and causing accidental inhalation by people, thus affecting people's health, and being more environmentally friendly and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a metal drum grinding mechanism according to an embodiment of the utility model;

[0018] Figure 2 It is a front view of a metal drum grinding mechanism according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of a guide roller in a metal roller grinding mechanism according to an embodiment of the utility model;

[0020] Figure 4 yes Figure 3 A local enlarged schematic diagram of the middle A;

[0021] Figure 5 It is a schematic diagram of a cross frame structure in a metal drum grinding mechanism according to an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of another angle structure of a cross frame in a metal roller grinding mechanism according to an embodiment of the utility model;

[0023] Figure 7 It is a cross-sectional view of a dust collection box in a metal drum grinding mechanism according to an embodiment of the utility model;

[0024] Figure 8 yes Figure 7 A local enlarged schematic diagram of point B in the middle.

[0025] In the figure:

[0026] 1. Grinding table; 2. U-shaped frame 1; 3. U-shaped frame 2; 4. Guide roller; 5. Rotating shaft 1; 6. Vertical frame; 7. Horizontal frame; 8. Grinding motor; 9. Grinding disc; 10. Stroke hole 1; 11. Screw rod 1; 12. Moving block 1; 13. Positioning disc; 14. L-shaped mounting seat; 15. Driving motor 1; 16. Pulley; 17. Transmission belt; 18. Forward and reverse motor 1; 19. Stroke hole 2; 20. Screw rod 2; 21. Moving block 2; 22. Forward and reverse motor 2; 23. Dust box; 24. Dust hood; 25. Connecting rod; 26. Y-shaped conveying pipe; 27. Exhaust hole; 28. Exhaust fan; 29. ​​Partition; 30. Ventilation hole; 31. Filter; 32. Dust collecting trough; 33. Clearing door; 34. Guide rod; 35. Slider; 36. Spring; 37. Rotating shaft 2; 38. Pressure plate; 39. Roller; 40. Driving motor 2. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] According to an embodiment of the utility model, a metal drum grinding mechanism is provided.

[0029] Embodiment 1;

[0030] like Figure 1-8 As shown, the metal drum grinding mechanism according to the embodiment of the utility model includes a grinding table 1, the top of the grinding table 1 is provided with a symmetrically arranged U-shaped frame 1 2 and a U-shaped frame 2 3, the U-shaped frame 1 2 and the U-shaped frame 2 3 are both provided with guide rollers 4, two groups of the guide rollers 4 are respectively connected to the U-shaped frame 1 2 and the U-shaped frame 2 3 through a rotating shaft 1 5, the two groups of the rotating shaft 1 5 are connected through a driving assembly, a vertical frame 6 is provided on one side of the top of the grinding table 1, a horizontal frame 7 is provided on one side of the vertical frame 6, and the horizontal frame 7 is connected to the vertical frame 6 through a lifting assembly The horizontal frame 7 is connected, a grinding motor 8 is provided at the bottom end, the grinding motor 8 is connected with the horizontal frame 7 through a horizontal moving component, a grinding disc 9 is provided at the driving end of the grinding motor 8, the horizontal moving component includes a travel hole 10 opened at the top of the horizontal frame 7, a screw rod 11 is provided in the travel hole 10, a moving block 12 matching the travel hole 10 is provided on the outer wall of the screw rod 11, the bottom end of the moving block 12 extends to the outside of the horizontal frame 7 and is connected with the grinding motor 8, and a dust suction component is provided on one side of the grinding disc 9.

[0031] Embodiment 2:

[0032] like Figure 1-8As shown, it includes a grinding table 1, the top of the grinding table 1 is provided with a symmetrically arranged U-shaped frame 1 2 and a U-shaped frame 2 3, the U-shaped frame 1 2 and the U-shaped frame 2 3 are both provided with guide rollers 4, two groups of the guide rollers 4 are respectively connected to the U-shaped frame 1 2 and the U-shaped frame 2 3 through a rotating shaft 1 5, and the two groups of the rotating shaft 1 5 are connected through a driving component, a vertical frame 6 is provided on one side of the top of the grinding table 1, and a horizontal frame 7 is provided on one side of the vertical frame 6, and the horizontal frame 7 is connected to the vertical frame 6 through a lifting component, and the bottom of the horizontal frame 7 A grinding motor 8 is provided, and the grinding motor 8 is connected to the horizontal frame 7 through a horizontal moving component. A grinding disc 9 is provided at the driving end of the grinding motor 8. The horizontal moving component includes a travel hole 10 opened at the top of the horizontal frame 7, a screw rod 11 is provided in the travel hole 10, and a moving block 12 matching the travel hole 10 is provided on the outer wall of the screw rod 11. The bottom end of the moving block 12 extends to the outside of the horizontal frame 7 and is connected to the grinding motor 8. A dust suction component is provided on one side of the grinding disc 9. Positioning discs 13 are symmetrically arranged at both ends of the guide roller 4. The driving assembly includes an L-shaped mounting seat 14 provided on one side of the U-shaped frame 2, a driving motor 15 provided on one side of the L-shaped mounting seat 14, the same side of the two groups of rotating shafts 5 respectively extend to the outside of the U-shaped frame 2 and the U-shaped frame 3 and are both connected to pulleys 16, the two groups of pulleys 16 are connected through a transmission belt 17, and the driving end of the driving motor 15 is connected to the axis of one group of pulleys 16. The screw rod 11 is connected to the cross frame 7 through a bearing 1, one side of the screw rod 11 extends to the outside of the cross frame 7 and is connected to the driving end of the forward and reverse motor 18, and the moving block 12 is provided with a threaded hole 1 that matches the screw rod 11. The lifting assembly includes a second travel hole 19 provided on one side of the vertical frame 6, a second screw rod 20 is provided in the second travel hole 19, a second moving block 21 matching the second travel hole 19 is sleeved on the outer wall of the second screw rod 20, and one side of the second moving block 21 extends to the outside of the vertical frame 6 and is connected to the horizontal frame 7. The second screw rod 20 is connected to the vertical frame 6 through a second bearing, and the top end of the second screw rod 20 extends to the outside of the vertical frame 6 and is connected to the driving end of the second forward and reverse motor 22, and the second moving block 21 is provided with a second threaded hole matching the second screw rod 20.During grinding, the metal drum workpiece is placed between the two sets of guide rollers 4, the forward and reverse motor 22 is started to drive the screw 20 to rotate, the screw 20 drives the moving block 21 to move downward, the moving block 21 drives the cross frame 7 to move downward, the cross frame 7 drives the grinding motor 8 to move downward, the grinding motor 8 drives the grinding disc 9 to move downward and contact the surface of the metal drum workpiece, then the grinding motor 8 is started to drive the grinding disc 9 to grind the workpiece, at the same time, the forward and reverse motor 18 is started to drive the screw 11 to rotate, the screw 11 is driven by the moving block 12 The dynamic grinding motor 8 performs horizontal reciprocating linear movement, and the driving motor 15 is started to drive the pulley 16 to rotate. The pulley 16 drives another set of pulleys 16 to rotate through the transmission belt 17. The two sets of pulleys 16 respectively drive two sets of guide rollers 4 to rotate in the same direction through the rotating shaft 5. The guide roller 4 drives the metal drum workpiece to rotate. By arranging U-shaped frame 1, U-shaped frame 2, guide rollers, rotating shaft 1 and driving components, the metal drum can be driven to rotate automatically to facilitate comprehensive grinding of its outer wall. There is no need for personnel to manually rotate the metal drum, saving physical strength.

[0033] Embodiment three;

[0034] like Figure 1-8As shown, it includes a grinding table 1, the top of the grinding table 1 is provided with a symmetrically arranged U-shaped frame 1 2 and a U-shaped frame 2 3, the U-shaped frame 1 2 and the U-shaped frame 2 3 are both provided with guide rollers 4, two groups of the guide rollers 4 are respectively connected to the U-shaped frame 1 2 and the U-shaped frame 2 3 through a rotating shaft 1 5, and the two groups of the rotating shaft 1 5 are connected through a driving component, a vertical frame 6 is provided on one side of the top of the grinding table 1, and a horizontal frame 7 is provided on one side of the vertical frame 6, and the horizontal frame 7 is connected to the vertical frame 6 through a lifting component, and the bottom of the horizontal frame 7 A grinding motor 8 is provided, and the grinding motor 8 is connected with the horizontal frame 7 through a horizontal moving component. A grinding disc 9 is provided at the driving end of the grinding motor 8. The horizontal moving component includes a travel hole 10 opened at the top of the horizontal frame 7, a screw rod 11 is provided in the travel hole 10, and a moving block 12 matching the travel hole 10 is provided on the outer wall of the screw rod 11. The bottom end of the moving block 12 extends to the outside of the horizontal frame 7 and is connected to the grinding motor 8. A dust suction component is provided on one side of the grinding disc 9. The dust collection assembly includes a dust collection box 23 provided outside the travel hole 10 and on one side of the moving block 12, symmetrically arranged dust collection hoods 24 are provided on both sides of the grinding disc 9, the dust collection hoods 24 are connected to the moving block 12 through a connecting rod 25, and the two groups of dust collection hoods 24 are connected to the dust collection box 23 through a Y-shaped conveying pipe 26, an exhaust hole 27 is provided at the top of the dust collection box 23, an exhaust fan 28 is provided in the exhaust hole 27, a partition 29 is provided in the dust collection box 23, symmetrically arranged ventilation holes 30 are provided at the top of the partition 29, a filter screen 31 is provided in the ventilation hole 30, and the filter screen 31 is connected to the partition 29 through an elastic component, a symmetrically arranged dust collecting groove 32 is provided at the bottom end of the dust collection box 23, and a clearance door 33 matching the dust collecting groove 32 is provided at the bottom end of the dust collection box 23. The elastic component includes a symmetrically arranged guide rod 34 in the ventilation hole 30, a slider 35 is sleeved on the outer wall of the guide rod 34, a spring 36 is sleeved on the bottom end of the slider 35 and located on the outer wall of the guide rod 34, the slider 35 is connected to the partition 29 through the spring 36, one side of the slider 35 is connected to the filter 31, a transversely arranged rotating shaft 2 37 is provided at the top of the partition 29, a symmetrically arranged pressure plate 38 is sleeved on the outer wall of the rotating shaft 2 37, a roller 39 is provided on the top of the pressure plate 38, and one side of the rotating shaft 2 37 extends to the outside of the dust box 23 and is connected to the driving end of the driving motor 2 40.During the grinding process, the exhaust fan 28 is started, and the exhaust fan 28 sucks the dust into the dust box 23 through the dust hood 24 and the Y-shaped conveying pipe 26. The filter 31 intercepts the dust. When the filter 31 needs to be cleaned, the drive motor 2 40 is started to drive the rotating shaft 2 37 to rotate, and the rotating shaft 2 37 drives the pressure plate 38 to rotate to intermittently press the filter 31. Since the filter 31 is connected to the partition 29 through the spring 36, the filter 31 will produce a vibration effect to shake the dust into the dust collecting groove 32 to prevent the filter holes from being blocked. By setting up a dust suction component, the dust generated during the grinding process can be collected and processed to prevent it from drifting into the surrounding environment and causing people to accidentally inhale it and affect their health, which is more environmentally friendly and safe.

[0035] In actual application, the metal drum workpiece is placed between the two groups of guide rollers 4 during grinding, the forward and reverse motor 22 is started to drive the screw rod 20 to rotate, the screw rod 20 drives the moving block 21 to move downward, the moving block 21 drives the cross frame 7 to move downward, the cross frame 7 drives the grinding motor 8 to move downward, the grinding motor 8 drives the grinding disc 9 to move downward and contact the surface of the metal drum workpiece, and then the grinding motor 8 is started to drive the grinding disc 9 to grind the workpiece, at the same time, the forward and reverse motor 18 is started to drive the screw rod 11 to rotate, the screw rod 11 drives the grinding motor 8 to move horizontally back and forth linearly through the moving block 12, the driving motor 15 is started to drive the pulley 16 to rotate, the pulley 16 drives another group of pulleys 16 to rotate through the transmission belt 17, the two groups of pulleys 16 respectively drive the two groups of guide rollers 4 to rotate in the same direction through the rotating shaft 5, the guide roller 4 drives the metal drum workpiece to rotate, and by setting The U-shaped frame 1, the U-shaped frame 2, the guide roller, the rotating shaft 1 and the driving assembly can drive the metal roller to rotate automatically to facilitate the comprehensive grinding of its outer wall, without the need for personnel to manually rotate the metal roller, saving physical strength; during the grinding process, the exhaust fan 28 is started, and the exhaust fan 28 sucks the dust into the dust box 23 through the dust cover 24 and the Y-shaped conveying pipe 26, and the filter 31 intercepts the dust. When the filter 31 needs to be cleaned, the driving motor 2 40 is started to drive the rotating shaft 2 37 to rotate, and the rotating shaft 2 37 drives the pressing plate 38 to rotate to intermittently press the filter 31. Since the filter 31 is connected to the partition 29 through the spring 36, the filter 31 will produce a vibration effect to shake the dust into the dust collecting groove 32 to prevent the filter hole from being blocked. By setting the dust suction assembly, the dust generated during the grinding process can be collected and processed to prevent it from drifting into the surrounding environment and causing people to accidentally inhale it and affect the health of people, which is more environmentally friendly and safe.

[0036] To sum up, with the help of the above-mentioned technical scheme of the utility model, by setting U-shaped frame 1, U-shaped frame 2, guide roller, rotating shaft 1 and driving assembly, the metal roller can be driven to rotate automatically to facilitate comprehensive grinding of its outer wall. There is no need for personnel to manually rotate the metal roller, which saves physical strength. By setting a dust suction assembly, the dust generated during the grinding process can be collected and processed to prevent it from drifting into the surrounding environment and causing accidental inhalation by people, affecting their health, which is more environmentally friendly and safe.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal drum grinding mechanism, characterized in that: The invention comprises a grinding table (1), wherein a U-shaped frame (2) and a U-shaped frame (3) are symmetrically arranged at the top of the grinding table (1), guide rollers (4) are arranged in the U-shaped frame (2) and the U-shaped frame (3), two groups of guide rollers (4) are respectively connected to the U-shaped frame (2) and the U-shaped frame (3) through a rotating shaft (5), and the two groups of rotating shafts (5) are connected through a driving assembly, a vertical frame (6) is arranged on one side of the top of the grinding table (1), a horizontal frame (7) is arranged on one side of the vertical frame (6), and the horizontal frame (7) is connected to the vertical frame (6) through a lifting assembly, and the horizontal frame (7) A grinding motor (8) is provided at the bottom end, and the grinding motor (8) is connected to the horizontal frame (7) through a horizontal moving component. A grinding disc (9) is provided at the driving end of the grinding motor (8). The horizontal moving component includes a travel hole (10) provided at the top of the horizontal frame (7), a screw rod (11) is provided in the travel hole (10), and a moving block (12) matching the travel hole (10) is sleeved on the outer wall of the screw rod (11). The bottom end of the moving block (12) extends to the outside of the horizontal frame (7) and is connected to the grinding motor (8). A dust suction component is provided on one side of the grinding disc (9).

2. A metal drum grinding mechanism according to claim 1, characterized in that: Both ends of the guide roller (4) are provided with symmetrically arranged positioning plates (13).

3. A metal drum grinding mechanism according to claim 1, characterized in that: The driving assembly comprises an L-shaped mounting seat (14) provided on one side of the U-shaped frame (2), a driving motor (15) being provided on one side of the L-shaped mounting seat (14), the same side of the two groups of rotating shafts (5) respectively extending to the outside of the U-shaped frame (2) and the U-shaped frame (3) and both connected to pulleys (16), the two groups of pulleys (16) being connected via a transmission belt (17), and the driving end of the driving motor (15) being connected to the axis of one group of pulleys (16).

4. A metal drum grinding mechanism according to claim 1, characterized in that: The screw rod (11) is connected to the cross frame (7) through a bearing (1); one side of the screw rod (11) extends outside the cross frame (7) and is connected to a driving end of a forward and reverse motor (18); and a threaded hole (1) matching the screw rod (11) is provided on the moving block (12).

5. A metal drum grinding mechanism according to claim 1, characterized in that: The lifting assembly comprises a second travel hole (19) provided on one side of the vertical frame (6), a second screw rod (20) being provided in the second travel hole (19), a second moving block (21) matching the second travel hole (19) being sleeved on the outer wall of the second screw rod (20), and a side of the second moving block (21) extending to the outside of the vertical frame (6) and connected to the horizontal frame (7).

6. A metal drum grinding mechanism according to claim 5, characterized in that: The second screw rod (20) is connected to the stand (6) through the second bearing, the top end of the second screw rod (20) extends outside the stand (6) and is connected to the driving end of the second forward and reverse motor (22), and the second moving block (21) is provided with two threaded holes matching the second screw rod (20).

7. A metal drum grinding mechanism according to claim 1, characterized in that: The dust collection assembly comprises a dust collection box (23) provided outside the travel hole (10) and located on one side of the moving block (12); symmetrically arranged dust collection covers (24) are provided on both sides of the grinding disc (9); the dust collection covers (24) are connected to the moving block (12) via a connecting rod (25); the two groups of dust collection covers (24) are connected to the dust collection box (23) via a Y-shaped conveying pipe (26); an exhaust hole (27) is provided at the top of the dust collection box (23); the exhaust hole (27) is provided at the bottom of the dust collection box (23); An exhaust fan (28) is provided in the dust box (27), a partition (29) is provided in the dust box (23), a symmetrically arranged ventilation hole (30) is provided at the top of the partition (29), a filter (31) is provided in the ventilation hole (30), and the filter (31) is connected to the partition (29) through an elastic component, a symmetrically arranged dust collecting groove (32) is provided at the bottom end of the dust box (23), and a cleaning door (33) matching the dust collecting groove (32) is provided at the bottom end of the dust box (23).

8. A metal drum grinding mechanism according to claim 7, characterized in that: The elastic component comprises a symmetrically arranged guide rod (34) in the ventilation hole (30), a sliding block (35) is sleeved on the outer wall of the guide rod (34), a spring (36) is sleeved on the bottom end of the sliding block (35) and located on the outer wall of the guide rod (34), the sliding block (35) is connected to the partition (29) through the spring (36), one side of the sliding block (35) is connected to the filter screen (31), a transversely arranged rotating shaft (37) is arranged on the top end of the partition (29), a symmetrically arranged pressure plate (38) is sleeved on the outer wall of the rotating shaft (37), a roller (39) is arranged on the top end of the pressure plate (38), and one side of the rotating shaft (37) extends to the outside of the dust box (23) and is connected to the driving end of the second driving motor (40).

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