A dust collecting and separating device for a flat grinder worktable

Abstract

The application discloses a dust collecting and separating device for a worktable of a surface grinder, and aims to provide a dust collecting and separating device for a worktable of a surface grinder which can collect different impurities through multi-stage separation. The device comprises a worktable, an adjusting assembly which is arranged on one side of the worktable and detachably connected with the worktable, one end of a suction pipe connected with the adjusting assembly, a separating hopper in communication with the other end of the suction pipe, a collecting tank arranged at the lower end of the separating hopper, the collecting tank in communication with the separating hopper, a magnetic attraction assembly arranged in the collecting tank, a suction end of a dust suction fan provided with a filter screen assembly, one side of the filter screen assembly in communication with the dust suction fan, the other end of the filter screen assembly provided with an air outlet pipe, one end of the air outlet pipe in communication with the filter screen assembly, and the other end of the air outlet pipe in communication with the separating hopper. The dust collecting and separating device for the worktable of the surface grinder has the advantages that different impurities can be collected through multi-stage separation, the dust can be quickly settled, metal impurities can be adsorbed, and the filtering efficiency can be improved by quickly converting the filter cup.

Description

Technical Field

[0001] This invention relates to the technical field of dust removal for surface grinders, and in particular to a dust collection and separation device for the worktable of a surface grinder. Background Technology

[0002] A surface grinder is a type of grinding machine. It primarily uses a rotating grinding wheel to grind workpieces to achieve the required flatness. Based on the shape of the worktable, it can be divided into rectangular and circular worktables. The main parameters of a rectangular worktable surface grinder are its width and length, while the main parameter of a circular worktable is its diameter. However, surface grinding often produces a large amount of dust during the grinding process. Prolonged exposure to this dust in the working environment can harm workers' health. Most existing dust control devices directly discharge dust from the workshop into the external environment, easily causing environmental pollution. Furthermore, most existing dust control devices simply suck up the dust, lacking the ability to separate dust generated from different processed materials, which can easily lead to waste of special materials contained in the waste.

[0003] Chinese Patent Publication No. CN117961678B, published on June 11, 2024, discloses a precision surface grinder, comprising a surface grinder body. The grinding wheel dressing device is mounted on the grinding wheel frame of the surface grinder body. The grinding wheel dressing device includes a dresser, a dust collection system, and a moving module. The dresser and dust collection system are both mounted on the moving module, and the dust collection system is correspondingly positioned to the dresser. The dust collection system includes an inner cylinder, a flushing module, a piston, and a push-pull module. The flushing module is mounted on the inner cylinder, and a piston is disposed within the inner cylinder. A dust collector is fixed to the outer end face of the piston. The flushing module is used to flush the dust collector within the inner cylinder. The push-pull module is connected to the piston. The dust collector includes an unfolding frame and a filter screen. The unfolding frame is fixedly connected to the piston, and the filter screen is fitted onto the unfolding frame. The filter screen is fixedly connected to the unfolding frame, and the opening of the filter screen near the piston is sealed. The unfolding frame includes a horizontal shaft, two fixed rods, and a movable rod. The horizontal shaft is horizontally positioned and fixedly connected to a piston. A fixed rod is fixedly connected to each end of the horizontal shaft. A movable rod is located below the horizontal shaft between the two fixed rods, and the end of the movable rod closest to the piston is rotatably connected to the horizontal shaft. The drawback of this invention is that this surface grinder only collects splashed impurities through a dust collector and cannot separate and collect dust. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of existing technologies that do not separate dust, resulting in waste, and provides a dust collection and separation device for a surface grinder worktable that can collect different impurities through multi-stage separation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dust collection and separation device for a surface grinder table, comprising: Workbench; An adjustment component, wherein the adjustment component is located on one side of the worktable and is detachably connected to the worktable; A suction tube, one end of which is connected to an adjustment assembly; A separation bucket is connected to the other end of a suction tube. A collection tank is installed at the lower end of the separation bucket, and the collection tank is connected to the separation bucket. A magnetic suction component is installed inside the collection tank. A vacuum cleaner fan, wherein the suction end of the vacuum cleaner fan is provided with a filter assembly, one side of the filter assembly is connected to the vacuum cleaner fan, and the other end of the filter assembly is provided with an air outlet pipe, one end of the air outlet pipe is connected to the filter assembly, and the other end of the air outlet pipe is connected to a separation hopper.

[0006] The worktable serves as the machining surface of a surface grinder, consistent with existing surface grinders. An adjustment assembly is installed on one side of the worktable to adjust the installation height. A suction pipe is mounted on the adjustment assembly and aligned with the machining surface. A dust extraction fan at the rear provides suction for the entire device. Dust generated during machining enters the separation hopper through the suction pipe, where it undergoes cyclone separation. Larger particles settle to the bottom of the separation hopper and then enter a connected collection tank. As the dust descends, a magnetic suction component in the collection tank separates the magnetic metal powder from the remaining dust. The separated gas in the separation hopper is output through an exhaust pipe, carrying a small amount of fine dust particles. This gas is further filtered and collected through a filter assembly connected to the exhaust pipe, improving the cleanliness of the discharged gas. After passing through the filter assembly, the gas is discharged by the dust extraction fan, achieving the goal of collecting different impurities through multi-stage separation.

[0007] Preferably, the adjustment assembly includes an adjustment plate and adjustment rods. The adjustment plate has a limiting block that matches the worktable. A reinforcing plate is installed at one end of the adjustment plate, and a reinforcing screw is provided on the reinforcing plate. One end of the reinforcing screw is fitted to the reinforcing plate, and the other end of the reinforcing screw passes through the worktable and is threadedly connected to it. A handwheel is installed at the end of the reinforcing screw that passes through the worktable. Adjustment rods are installed on both sides of the adjustment plate, and adjusting nuts are installed on the adjustment rods, which are threadedly connected to the adjustment rods. The adjustment assembly is installed on the worktable via the limiting block, which limits the adjustment plate. Then, the handwheel rotates the reinforcing screw, which is threaded to the side of the worktable, pushing it forward until the top of the reinforcing screw presses against the reinforcing plate on one side of the adjustment plate, thus fixing the adjustment plate to the worktable. Adjustment rods are installed on both sides of the adjustment plate, and the surface of the adjustment rods has a threaded structure. Nuts are installed on the adjustment rods, and the height is adjusted by turning the nuts. This design allows for quick alignment with the machining surface.

[0008] Preferably, the suction pipe includes a feed hopper and a connecting pipe. The feed hopper has a trapezoidal cross-sectional shape. One end of the feed hopper is connected to the connecting pipe, and the other end of the feed hopper is fitted with a fixing ring. The fixing ring corresponds to an adjusting rod, with the upper end of the adjusting rod passing through the fixing ring and the lower end of the fixing ring engaging with an adjusting nut. The feed hopper of the suction pipe is trapezoidal, with the larger end facing the processing area. The trapezoidal shape of the feed hopper can accept a larger area of ​​dust, reducing dust dispersion. Dust enters the feed hopper and moves towards the smaller end until it enters the connecting pipe and is conveyed to the separation hopper. A fixing ring is installed at the front end of the feed hopper. When installing the suction pipe, the feed hopper and adjusting rod are directly placed and fitted together. The adjusting rod restricts the position of the end of the suction pipe to ensure stability. Then, the fixing ring is engaged with the adjusting nut to adapt to the height of the processing surface. This design can accept a larger area of ​​dust.

[0009] Preferably, the upper end of the separating hopper is cylindrical, and the lower end is conical. One end of the connecting pipe passes through the upper end of the separating hopper and connects to it. One end of the exhaust pipe passes through the top of the separating hopper and is placed inside it. Because the upper end of the separating hopper is cylindrical, when dust is extracted under negative pressure, the dust enters the separating hopper with a certain initial velocity and then rotates along the inner wall of the separating hopper. The lower end of the exhaust pipe is located inside the conical end of the separating hopper. Since the end of the exhaust pipe is located downwards, the dust will rotate and fall, impacting the lower end of the cone under inertia and settling. This principle is consistent with the cyclone separation principle of a vacuum cleaner. The settled gas is output through the exhaust pipe. This design enables rapid dust settling.

[0010] Preferably, a discharge pipe is installed at the lower end of the separating hopper, the discharge pipe is connected to the separating hopper and the discharge pipe is connected to the collecting tank, a discharge hopper is installed at the lower end of the collecting tank, the discharge hopper is connected to the collecting tank, the magnetic attraction assembly includes a sealing plate and a rotating shaft, one side of the collecting tank is open, the sealing plate is fitted to one end of the opening of the collecting tank, one end of the rotating shaft passes through the sealing plate and is placed inside the collecting tank, the end of the rotating shaft placed outside the collecting tank is provided with a magnetic attraction hole, and an electromagnet is installed in the magnetic attraction hole. The lower end of the separating hopper is equipped with a discharge pipe for discharging settled dust. The dust is transported to the collection tank through the discharge pipe. As the dust falls, it exits through the discharge hopper and passes through a rotating shaft installed inside the collection tank. The end face of the rotating shaft has a magnetic attraction hole, and an electromagnet is installed in the magnetic attraction hole. When the dust collection device is working, the electromagnet is energized, which generates a magnetic field inside the rotating shaft. As the dust falls, it attracts magnetic metal impurities, separating the metal impurities from the rest of the powder. The rotating shaft is mounted on a closed plate, which seals the opening of the collection tank to reduce dust escape. This design can attract metal impurities.

[0011] Preferably, a gear one is installed at the end of the rotating shaft located outside the collection tank, a motor one is installed on the closed plate, and a gear two is installed on the motor shaft of the motor one. The gear one and gear two mesh. Several evenly distributed adsorption plates are installed at the end of the rotating shaft located inside the collection tank. The adsorption plates are circumferentially distributed on the rotating shaft, corresponding to the inner wall of the collection tank. When dust falls, it first falls onto the adsorption plates. Due to the magnetic field generated by the electromagnet inside the rotating shaft, metals are simultaneously adsorbed onto the adsorption plates, increasing the adsorption area and ensuring that all powder can contact the adsorption plates. During the adsorption process, the motor one drives the gear two to rotate, and the meshing of gear one and gear two drives the rotating shaft to rotate. After the adsorption plates absorb metal at the top, they rotate to the bottom, and excess dust naturally falls and is discharged through the hopper. This design can improve the adsorption efficiency.

[0012] Preferably, push ears are installed on both sides of the sealing plate, and pneumatic cylinders are installed on both sides of the collection tank. The pneumatic ends of the pneumatic cylinders are connected to the push ears. After collection is completed, the push ears are moved by the pneumatic cylinders installed on the collection tank. The push ears move the sealing plate away from the collection tank, and at the same time, the magnetic attraction component is pulled out of the collection tank. Then, the electromagnet is de-energized. At this time, metal impurities can be collected separately. This design allows for the rapid collection of metal impurities.

[0013] Preferably, the filter assembly includes a rotating frame and a second motor. The rotating frame has several circumferentially distributed mounting tubes. The second motor is mounted on the exhaust pipe, and its motor shaft is connected to the rotating frame. One end of each mounting tube is attached to the end of the exhaust pipe located outside the separation hopper, and the other end is attached to the suction end of the vacuum cleaner. A filter cup is installed inside each mounting tube. The filter assembly is mounted on the exhaust pipe located outside the separation hopper. The second motor drives the rotating frame on its motor shaft to rotate. The rotation of the rotating frame allows different positions of the mounting tubes to correspond to the exhaust pipe. One end of each mounting tube is attached to the exhaust pipe, and the other end is attached to the suction end of the vacuum cleaner, achieving a sealed overall device and creating a negative pressure environment. This allows the suction pipe to absorb dust. The filter cup, which is removable, can be cleaned after switching between different mounting tubes. This design allows for quick filter cup switching and improves filtration efficiency.

[0014] Preferably, the filter cup is placed inside the mounting tube and fits snugly against the inner wall of the mounting tube. The filter cup contains several evenly distributed filter screens, with a dust removal hole between every two screens. The multiple screens achieve multi-stage filtration of dust, significantly reducing the dust content in the gas. The screens can also separate dust particles of different sizes. The filter cup has several dust removal holes, one between every two screens. These holes improve cleaning efficiency and allow for targeted cleaning of individual screens. Dust generated during cleaning can also be quickly emptied from the filter cup. This design enables rapid cleaning of the filter cup.

[0015] Preferably, a blower is installed at the other end of the worktable corresponding to the adjustment component. Since a large amount of dust generated during grinding can be thrown by the grinding wheel into the suction pipe for suction, but a small amount of powder will still escape, a blower is installed on the worktable. The blower is located at the end opposite to the suction pipe. The air force of the blower blows the escaped dust into the suction pipe for collection. This design can increase the amount of dust collected.

[0016] The beneficial effects of this invention are: it can collect different impurities through multi-stage separation, can quickly correspond to the processing surface, can accept a larger area of ​​dust, can achieve rapid dust settling, can adsorb metal impurities, can improve adsorption efficiency, can quickly collect metal impurities, can quickly switch filter cups to improve filtration efficiency, can quickly clean filter cups, and can increase the amount of dust collected. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure of the adjustment component; Figure 3 yes Figure 1 Schematic diagram of the suction tube; Figure 4 yes Figure 1 Cross-sectional view of the intermediate separation bucket; Figure 5 yes Figure 1 Schematic diagram of the middle collection tank; Figure 6 yes Figure 1 Schematic diagram of the structure of the magnetic attraction component; Figure 7 yes Figure 1 Schematic diagram of the middle filter assembly; Figure 8 yes Figure 7 A schematic diagram of the structure of the middle filter cup.

[0018] In the diagram: 1. Workbench; 2. Adjustment assembly; 21. Adjustment plate; 22. Adjustment rod; 23. Limit block; 24. Reinforcing plate; 25. Reinforcing screw; 26. Handwheel; 27. Adjusting nut; 3. Suction pipe; 31. Feed hopper; 32. Connecting pipe; 33. Fixing ring; 4. Separation hopper; 41. Air outlet pipe; 42. Discharge pipe; 5. Collection tank; 51. Discharge hopper; 52. Pneumatic cylinder; 6. Magnetic suction assembly; 61. Sealing plate; 62. Rotating shaft; 63. Magnetic suction hole; 64. Electromagnet; 65. Gear 1; 66. Motor 1; 67. Gear 2; 68. Adsorption plate; 69. Push ear; 7. Dust suction fan; 8. Filter assembly; 81. Rotating frame; 82. Motor 2; 83. Mounting pipe; 84. Filter cup; 85. Filter screen; 86. Dust removal hole; 9. Blower. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 In this embodiment, a dust collection and separation device for a surface grinder table includes: Workbench 1; Adjustment component 2 is located on one side of the worktable 1 and is detachably connected to the worktable 1; Suction tube 3, one end of which is connected to adjustment component 2; Separating bucket 4 is connected to the other end of suction tube 3. A collection tank 5 is installed at the lower end of separating bucket 4. The collection tank 5 is connected to separating bucket 4. A magnetic suction component 6 is installed inside the collection tank 5. The vacuum blower 7 has a filter assembly 8 at its suction end. One side of the filter assembly 8 is connected to the vacuum blower 7, and the other end of the filter assembly 8 is provided with an air outlet pipe 41. One end of the air outlet pipe 41 is connected to the filter assembly 8, and the other end of the air outlet pipe 41 is connected to the separation hopper 4.

[0021] like Figure 2 As shown, the adjustment assembly 2 includes an adjustment plate 21 and an adjustment rod 22. The adjustment plate 21 is provided with a limit block 23, which matches the worktable 1. A reinforcing plate 24 is installed at one end of the adjustment plate 21. A reinforcing screw 25 is provided on the reinforcing plate 24. One end of the reinforcing screw 25 is in contact with the reinforcing plate 24, and the other end of the reinforcing screw 25 passes through the worktable 1 and is threadedly connected to the worktable 1. A handwheel 26 is installed at the end of the reinforcing screw 25 that passes through the worktable 1. Adjustment rods 22 are installed on both sides of the adjustment plate 21. Adjustment nuts 27 are installed on the adjustment rods 22 and are threadedly connected to the adjustment rods 22.

[0022] like Figure 3 As shown, the suction pipe 3 includes a feed hopper 31 and a connecting pipe 32. The feed hopper 31 has a trapezoidal cross-sectional shape. One end of the feed hopper 31 is connected to the connecting pipe 32, and the other end of the feed hopper 31 is equipped with a fixing ring 33. The fixing ring 33 corresponds to the adjusting rod 22. The upper end of the adjusting rod 22 passes through the fixing ring 33, and the lower end of the fixing ring 33 is in contact with the adjusting nut 27.

[0023] like Figure 4 As shown, the upper end of the separation hopper 4 is cylindrical and the lower end of the separation hopper 4 is conical. One end of the connecting pipe 32 passes through the upper end of the separation hopper 4 and is connected to the separation hopper 4. One end of the air outlet pipe 41 passes through the top of the separation hopper 4 and is placed inside the separation hopper 4.

[0024] like Figure 5 , Figure 6 As shown, a feeding pipe 42 is installed at the lower end of the separating hopper 4, and the feeding pipe 42 is connected to the separating hopper 4 and the collecting tank 5. A feeding hopper 51 is installed at the lower end of the collecting tank 5, and the feeding hopper 51 is connected to the collecting tank 5. The magnetic suction assembly 6 includes a sealing plate 61 and a rotating shaft 62. One side of the collecting tank 5 is open, and the sealing plate 61 is attached to one end of the opening of the collecting tank 5. One end of the rotating shaft 62 passes through the sealing plate 61 and is placed inside the collecting tank 5. The end of the rotating shaft 62 placed outside the collecting tank 5 is provided with a magnetic suction hole 63, and an electromagnet 64 is installed in the magnetic suction hole 63.

[0025] A gear 65 is installed at one end of the rotating shaft 62 located outside the collection tank 5. A motor 66 is installed on the sealing plate 61. A gear 67 is installed on the motor shaft of the motor 66. The gear 65 and the gear 67 mesh. Several evenly distributed adsorption plates 68 are installed at one end of the rotating shaft 62 located inside the collection tank 5.

[0026] Push lugs 69 are installed on both sides of the sealing plate 61, and pneumatic cylinders 52 are installed on both sides of the collection tank 5. The pneumatic end of the pneumatic cylinder 52 is connected to the push lugs 69.

[0027] like Figure 7 As shown, the filter assembly 8 includes a rotating frame 81 and a second motor 82. Several mounting tubes 83 are installed on the rotating frame 81 in a circular arrangement. The second motor 82 is installed on the air outlet pipe 41. The motor shaft of the second motor 82 is connected to the rotating frame 81. One end of the mounting tube 83 is attached to the end of the air outlet pipe 41 located outside the separation hopper 4. The other end of the mounting tube 83 is attached to the suction end of the vacuum cleaner 7. A filter cup 84 is installed inside the mounting tube 83.

[0028] like Figure 8 As shown, the filter cup 84 is placed inside the mounting tube 83 and fits against the inner wall of the mounting tube 83. Several evenly distributed filter screens 85 are installed inside the filter cup 84, and a dust removal hole 86 is provided between two filter screens 85. A blower 9 is installed on the other end of the workbench 1 corresponding to the adjusting component 2.

[0029] When using this device to process powder generated during surface grinding, the blower 9 and the dust collector 7 are started simultaneously, creating a negative pressure environment within the powder processing device to adsorb the powder. Then, with the assistance of the blower 9, the powder is blown towards the feed hopper 31, and the dust enters the separation hopper 4 through the connecting pipe 32. Before processing the dust, the adjusting nut 27 on the adjusting rod 21 is turned to align with the processing surface. The fixing ring of the feed hopper 31 is then inserted into the adjusting rod 22, ensuring that the feed end of the feed hopper 31 aligns with the processing surface.

[0030] Dust enters the separation hopper 4 with a certain initial velocity and then rotates along the inner wall of the separation hopper 4. The lower end of the exhaust pipe 41 is located inside the conical end of the separation hopper 4. Because the end of the exhaust pipe 41 is located downwards, the dust will rotate and fall, and under the action of inertia, it will hit the lower end of the cone and settle. The gas after dust separation is output through the exhaust pipe 41 and enters the filter assembly 8. It is filtered by the filter cup 84 attached to the mounting pipe 83. The multi-layer filter screen 85 installed in the filter cup 84 can initially filter fine dust. After filtration, it is discharged through the vacuum fan 7 to ensure the cleanliness of the gas. After filtration for a period of time, the motor 82 rotates, driving the rotating frame 81 to rotate together, aligning the adjacent mounting pipe 83 with the vacuum fan 7 and the exhaust pipe 41 to ensure unobstructed passage. The gas is then filtered by the new filter cup 84 in the mounting pipe 83. After filtration, the filter cup 84 is disassembled and cleaned through the dust removal hole 867 to improve cleaning efficiency.

[0031] Impurities settling in the separation hopper are fed into the collection tank 5 through the feed pipe 42. The electromagnet 64 in the rotating shaft 62 is energized, providing magnetism to the rotating shaft 62 and the adsorption plate 68. When dust falls, it first contacts the adsorption plate 68, which can adsorb the magnetic metal in the dust. Then, the motor 66 drives the gear 67 to rotate. Through the meshing of the gear 67 and the gear 67, the rotating shaft 62 and the adsorption plate 68 are rotated, rotating the adsorption plate 68 with the adsorbed dust to the bottom. The magnetic metal stays on the adsorption plate 68, and the rest of the dust falls off. The concentrated dust is output through the feed hopper 51.

[0032] After the adsorption plate 51 adsorbs for a period of time, the pneumatic cylinder 52 is activated, pushing the sealing plate 61 away from the collection tank 5. After the adsorption plate 68 is moved out of the collection tank 5, the electromagnet 64 is de-energized. At this time, the magnetic metal on the adsorption plate 68 can be collected separately.

Claims

1. A dust collection and separation device for a surface grinder worktable, characterized in that it comprises: Workbench (1); Adjustment component (2), wherein the adjustment component (2) is placed on one side of the workbench (1) and is detachably connected to the workbench (1); A suction tube (3), one end of which is connected to an adjustment assembly (2); The separation bucket (4) is connected to the other end of the suction tube (3). A collection tank (5) is installed at the lower end of the separation bucket (4). The collection tank (5) is connected to the separation bucket (4). A magnetic suction component (6) is installed inside the collection tank (5). A vacuum blower (7) is provided with a filter assembly (8) at the suction end of the vacuum blower (7). One side of the filter assembly (8) is connected to the vacuum blower (7), and the other end of the filter assembly (8) is provided with an air outlet pipe (41). One end of the air outlet pipe (41) is connected to the filter assembly (8), and the other end of the air outlet pipe (41) is connected to the separation bucket (4).

2. The dust collection and separation device for a surface grinder worktable according to claim 1, characterized in that, The adjustment assembly (2) includes an adjustment plate (21) and an adjustment rod (22). The adjustment plate (21) is provided with a limiting block (23), which matches the workbench (1). A reinforcing plate (24) is installed at one end of the adjustment plate (21). A reinforcing screw (25) is provided on the reinforcing plate (24). One end of the reinforcing screw (25) is in contact with the reinforcing plate (24). The other end of the reinforcing screw (25) passes through the workbench (1) and is threadedly connected to the workbench (1). A handwheel (26) is installed at one end of the reinforcing screw (25) that passes through the workbench (1). Adjustment rods (22) are installed on both sides of the adjustment plate (21). Adjustment nuts (27) are installed on the adjustment rods (22). The adjustment nuts (27) are threadedly connected to the adjustment rods (22).

3. The dust collection and separation device for a surface grinder worktable according to claim 2, characterized in that, The suction tube (3) includes a feed hopper (31) and a connecting pipe (32). The feed hopper (31) has a trapezoidal cross-section. One end of the feed hopper (31) is connected to the connecting pipe (32). The other end of the feed hopper (31) is equipped with a fixing ring (33). The fixing ring (33) corresponds to the adjusting rod (22). The upper end of the adjusting rod (22) passes through the fixing ring (33), and the lower end of the fixing ring (33) is in contact with the adjusting nut (27).

4. The dust collection and separation device for a surface grinder worktable according to claim 3, characterized in that, The upper end of the separation bucket (4) is cylindrical, the lower end of the separation bucket (4) is conical, one end of the connecting pipe (32) passes through the upper end of the separation bucket (4) and is connected to the separation bucket (4), and one end of the air outlet pipe (41) passes through the top of the separation bucket (4) and is placed inside the separation bucket (4).

5. The dust collection and separation device for a surface grinder worktable according to claim 4, characterized in that, The lower end of the separation hopper (4) is equipped with a feeding pipe (42), which is connected to the separation hopper (4) and the collection tank (5). The lower end of the collection tank (5) is equipped with a feeding hopper (51), which is connected to the collection tank (5). The magnetic suction assembly (6) includes a sealing plate (61) and a rotating shaft (62). One side of the collection tank (5) is open. The sealing plate (61) is attached to one end of the opening of the collection tank (5). One end of the rotating shaft (62) passes through the sealing plate (61) and is placed inside the collection tank (5). The end of the rotating shaft (62) placed outside the collection tank (5) is provided with a magnetic suction hole (63), and an electromagnet (64) is installed in the magnetic suction hole (63).

6. The dust collection and separation device for a surface grinder worktable according to claim 5, characterized in that, The rotating shaft (62) is equipped with a gear 1 (65) at one end outside the collection tank (5), a motor 1 (66) is installed on the sealing plate (61), a gear 2 (67) is installed on the motor shaft of the motor 1 (66), the gear 1 (65) and the gear 2 (67) mesh, and several uniformly distributed adsorption plates (68) are installed at one end of the rotating shaft (62) inside the collection tank (5).

7. A dust collection and separation device for a surface grinder worktable according to claim 5, characterized in that, Push ears (69) are installed on both sides of the sealing plate (61), and pneumatic cylinders (52) are installed on both sides of the collection tank (5). The pneumatic end of the pneumatic cylinder (52) is connected to the push ears (69).

8. The dust collection and separation device for a surface grinder worktable according to claim 1, characterized in that, The filter assembly (8) includes a rotating frame (81) and a second motor (82). The rotating frame (81) is equipped with several circumferentially distributed mounting tubes (83). The second motor (82) is mounted on the air outlet pipe (41). The motor shaft of the second motor (82) is connected to the rotating frame (81). One end of the mounting tube (83) is attached to the end of the air outlet pipe (41) located outside the separation hopper (4). The other end of the mounting tube (83) is attached to the suction end of the vacuum cleaner (7). A filter cup (84) is installed inside the mounting tube (83).

9. A dust collection and separation device for a surface grinder table according to claim 8, characterized in that, The filter cup (84) is placed inside the mounting tube (83) and is in contact with the inner wall of the mounting tube (83). Several evenly distributed filter screens (85) are installed inside the filter cup (84), and a dust removal hole (86) is provided between two filter screens (85).

10. A dust collection and separation device for a surface grinder worktable according to claim 1, characterized in that, A blower (9) is installed on the other end of the workbench (1) corresponding to the adjustment component (2).

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