Dustproof device of abrasive wheel cutting machine

Abstract

The invention relates to the technical field of cutting equipment, and discloses an abrasive wheel cutting machine dustproof device which comprises a workbench, a first dustproof cover and a second dustproof cover with opposite openings are slidably arranged at the upper end of the workbench and located on the two sides of a mounting base correspondingly, and a dust suction opening is formed in the side wall of the first dustproof cover. A dust collection hopper communicated with the dust collection opening is fixedly arranged on the outer side of the first dust cover, a dust collection pipe is fixedly communicated with the dust collection hopper, and a dust collector is fixedly communicated with the end, away from the dust collection hopper, of the dust collection pipe. According to the dustproof device of the abrasive wheel cutting machine, during cutting work, a workpiece and the abrasive wheel cutting machine are sealed through the first dustproof cover and the second dustproof cover, dust flying is avoided, sweeps and dust generated during cutting are sucked away through the dust collector, and large-particle sweeps and dust in the sweeps and dust are intercepted through a filter plate in the pre-filtering device; and the dust collector filter element is prevented from being damaged by large-particle sweeps.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and particularly to a dust-proof device for a grinding wheel cutting machine. Background Art

[0002] A grinding wheel cutting machine, also known as a grinding wheel saw, is applicable to departments such as construction, hardware, petrochemical industry, mechanical metallurgy, and hydropower installation. The grinding wheel cutting machine is a commonly used device for cutting materials such as square and flat metal pipes, square and flat steel, I-beams, channel steel, carbon yuan steel, and yuan pipes.

[0003] When the grinding wheel cutting machine cuts and grinds a workpiece, a large amount of dust and waste chips will be generated, and dust removal needs to be carried out through a dust collector. Among the generated dust, there will be some waste chips with a relatively large volume. If directly sucked into the dust collector, the waste chips with a relatively large volume will cause a certain degree of scratching and damage to the filter material of the dust collector, which will affect the service life of the filter material of the dust collector. Summary of the Invention

[0004] The present invention provides a dust-proof device for a grinding wheel cutting machine, which has the beneficial effect of intercepting large-particle waste chips and dust in the waste chips and dust through a filter plate in a pre-filtering device, preventing damage to the vacuum cleaner caused by large-particle waste chips during long-term use, and reducing the service life of the vacuum cleaner, and solves the problem mentioned in the above background art that if waste chips with a relatively large volume are directly sucked into the dust collector, it will cause a certain degree of scratching and damage to the filter material of the dust collector, which will affect the service life of the filter material of the dust collector.

[0005] The present invention provides the following technical solution: A dust-proof device for a grinding wheel cutting machine, including a workbench, and an installation seat and a grinding wheel cutting machine are arranged at the upper end of the workbench; On both sides of the installation seat at the upper end of the workbench, a first dust-proof cover and a second dust-proof cover with opposite openings are respectively arranged in a sliding manner. A dust suction port is arranged on the side wall of the first dust-proof cover. A dust suction hopper communicated with the dust suction port is fixedly arranged outside the first dust-proof cover. A dust suction pipe is fixedly communicated with the dust suction hopper. One end of the dust suction pipe away from the dust suction hopper is fixedly communicated with a vacuum cleaner; A pre-filtering device is arranged at the dust suction port in the first dust-proof cover. The pre-filtering device includes a pre-filtering frame body. A filter plate is arranged in the pre-filtering frame body. A partition plate is arranged at the pre-filtering frame body. A switch mechanism for driving the partition plate to open or close is arranged in the first dust-proof cover.

[0006] As an optional solution of the dust-proof device for the grinding wheel cutting machine of the present invention, wherein: First mounting plates and second mounting plates are respectively fixedly arranged on both sides of the upper end of the workbench. A first electric cylinder and a second electric cylinder are respectively mounted on the first mounting plate and the second mounting plate. The output ends of the first electric cylinder and the second electric cylinder are respectively fixedly connected with the first dust-proof cover and the second dust-proof cover.

[0007] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: the switch mechanism includes a first housing fixedly arranged in the first dust-proof cover. A first rotating shaft is rotatably arranged in the first housing through a bearing. A first gear is fixedly installed on the first rotating shaft. A connecting block is fixedly arranged on the partition plate. A first rack is fixedly arranged on the connecting block. The first rack is meshed and connected with the first gear; A second housing is fixedly arranged at the upper end of the first housing. A first moving plate is slidably arranged in the second housing. A first spring is connected between the first moving plate and the inner wall of the second housing. A first slider is fixedly arranged at the lower end of the first moving plate. A first sliding hole for slidably connecting the first slider is opened on the upper wall of the first housing. The first slider penetrates through the first sliding hole and extends into the first housing. A second rack is fixedly arranged at the lower end of the first slider. A second gear meshed and connected with the second rack is fixedly installed on the first rotating shaft; A push block is fixedly arranged on the inner bottom wall of the second dust-proof cover, and the push block corresponds to the position of the first moving plate.

[0008] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: the pre-filtering frame body is fixedly arranged inside the first dust-proof cover and at the dust suction port. A partition plate is fixedly arranged inside the pre-filtering frame body and at the lower end of the dust suction port. The filter plate is fixedly arranged at the upper end of the partition plate; A first pair of interfaces communicated with the pre-filtering frame body is fixedly arranged outside the first dust-proof cover and at the lower end of the partition plate. A collection box is arranged on the upper end of the workbench. A second pair of interfaces is fixedly communicated with one side wall of the collection box facing the first pair of interfaces. The second pair of interfaces is adapted to the first pair of interfaces. An air extraction pipe is fixedly communicated with the collection box. The air extraction pipe is fixedly communicated with an air extraction fan.

[0009] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: a piston cylinder is arranged on the workbench. A piston plate is arranged inside the piston cylinder. One end of the piston plate is fixedly provided with a piston rod. The piston rod extends outside the piston cylinder and is fixedly provided with a first connecting plate. A second spring is connected between the first connecting plate and the piston cylinder and outside the piston rod. One end of the piston cylinder away from the piston rod is fixedly communicated with a gas guide hose. The end of the gas guide hose away from the piston cylinder is communicated with the pre-filtering frame body; A piston driving mechanism is arranged on the workbench.

[0010] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: the piston driving mechanism includes a third housing, the third housing is fixedly connected to the first dust-proof cover, a second moving plate is fixedly and slidably connected in the third housing, a third spring is connected between the second moving plate and the inner wall of the third housing, and a third rack is fixedly provided at one end of the second moving plate away from the third spring; Two groups of fourth springs are connected to the upper end of the workbench, a moving block is jointly connected to the upper ends of the two groups of fourth springs, a baffle is fixedly provided at the upper end of the moving block, an avoidance hole is opened at the lower end of the baffle, a wedge surface is provided in the middle of the lower end of the moving block, and a wedge block is fixedly provided outside the first dust-proof cover and at the lower end of the third housing, and the wedge block corresponds to the wedge surface; A Π-shaped frame is fixedly provided on the upper end of the workbench, a second rotating shaft is rotatably provided in the Π-shaped frame through a bearing, the second rotating shaft is located on the side of the baffle away from the third rack, a third gear is fixedly provided on the second rotating shaft, and the third gear is adapted to the third rack; A fourth rack is fixedly provided at one end of the first connecting plate away from the piston rod, and a fourth gear meshed with the fourth rack is fixedly provided on the second rotating shaft.

[0011] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: a shaking mechanism is provided on the upper end of the workbench and on one side of the first dust-proof cover, and the shaking mechanism is used to drive the first dust-proof cover to shake during the movement of the first dust-proof cover and during the closing process of the isolation plate.

[0012] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, wherein: the shaking mechanism includes a support plate, the support plate is fixedly arranged on the outer side wall of the first dust-proof cover, two groups of T-shaped first guide rods are slidably arranged on the support plate, an auxiliary wheel is jointly installed at the lower ends of the two groups of first guide rods, a fifth spring is connected between the auxiliary wheel and the support plate, corrugated plates are provided on the upper end of the workbench and on both sides of the first dust-proof cover, the corrugated plates correspond to the auxiliary wheel, a rocker is hinged on the support plate, and a transmission rod is fixedly provided on the auxiliary wheel and is located below the rocker.

[0013] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, the following is provided: a third rotating shaft is arranged in the pre-filtering frame body, a fan blade is fixedly arranged on the third rotating shaft, a fifth gear is fixedly arranged on the third rotating shaft and outside the pre-filtering frame body, a first connecting rod is fixedly connected to the auxiliary wheel, and one end of the first connecting rod away from the auxiliary wheel is fixedly provided with a fifth rack meshed with the fifth gear. The upper end of the fifth rack is fixedly provided with a second connecting rod. One end of the second connecting rod away from the fifth rack extends into the pre-filtering frame body and is fixedly provided with a second connecting plate. A scraper in contact with the filter plate is fixedly arranged on the second connecting plate.

[0014] As an alternative solution of the dust-proof device of the grinding wheel cutting machine according to the present invention, the following is provided: the shaking mechanism includes two groups of side plates. The side plates are equidistantly and slidably connected with second guide rods in a T shape. Universal balls are fixedly arranged on one side of the second guide rods facing the first dust-proof cover. A sixth spring is connected between the universal balls and the side plates and outside the second guide rods. U-shaped protrusions are fixedly arranged on both sides of the first dust-proof cover.

[0015] The present invention has the following beneficial effects: 1. For the dust-proof device of the grinding wheel cutting machine, during the cutting operation, the workpiece and the grinding wheel cutting machine are enclosed by the first dust-proof cover and the second dust-proof cover, so as to avoid the scattering of dust and affect the surrounding environment. The waste chips and dust generated by cutting are sucked away by a vacuum cleaner. A pre-filtering device is arranged in front of the vacuum cleaner. The filter plate in the pre-filtering device can intercept the large-particle waste chips and dust in the waste chips and dust, prevent the large-particle waste chips from damaging the filter element of the vacuum cleaner during long-term use, and reduce the service life of the vacuum cleaner.

[0016] 2. For the dust-proof device of the grinding wheel cutting machine, an isolation plate is arranged at the opening of the pre-filtering frame body of the pre-filtering device. When the cutting operation is carried out, the isolation plate is opened, and the opening of the pre-filtering frame body is exposed, facilitating the suction of waste chips and dust into the pre-filtering frame body. When the cutting operation is completed, the isolation plate is closed to block the opening of the pre-filtering frame body, preventing large-particle waste chips and impurities from falling out of the pre-filtering frame body during the movement of the first dust-proof cover, and facilitating the centralized cleaning of the large-particle waste chips and impurities in the pre-filtering frame body.

[0017] 3. For the dust-proof device of the grinding wheel cutting machine, through the cooperation of the blowing of the exhaust fan and the piston cylinder, the large-particle impurities intercepted in the pre-filtering frame body are guided into the collection box, realizing the cleaning of the pre-filtering device and facilitating the next processing and use.

[0018] 4. For the dust-proof device of the grinding wheel cutting machine, by setting a jitter mechanism, when it is necessary to clean the large-particle impurities intercepted in the pre-filter box, during the process of the first dust-proof cover moving towards the collection box, the jitter mechanism drives the first dust-proof cover to jitter and vibrate, so that the pre-filter device vibrates, shaking off the large-particle impurity dust adsorbed on the surface of the filter plate and the pre-filter box to avoid incomplete cleaning of the pre-filter device.

[0019] 5. For the dust-proof device of the grinding wheel cutting machine, a fan blade is arranged in the pre-filter box, and a scraper is arranged on the surface of the filter plate. When the jitter mechanism operates, it drives the fan blade to rotate, raising the large-particle impurity dust in the pre-filter box, improving the effect of discharging the large-particle impurities into the collection box, driving the scraper to move up and down, scraping off the dust and impurities attached to the surface of the filter plate by the scraper, improving the cleaning effect of the filter plate. The scraper is inclined to reduce the accumulation of dust and impurities on the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective structural schematic diagram of the present invention.

[0021] Figure 2 It is a rear perspective structural schematic diagram of the present invention.

[0022] Figure 3 It is a structural schematic diagram at the pre-filter box of the present invention.

[0023] Figure 4 It is a structural schematic diagram at the first housing and the second housing of the present invention.

[0024] Figure 5 It is a structural schematic diagram at the piston cylinder of the present invention.

[0025] Figure 6 It is a structural schematic diagram at the third housing of the present invention.

[0026] Figure 7 For the present invention Figure 1 The partial enlarged structural schematic diagram at A in it.

[0027] Figure 8 It is a structural schematic diagram at the scraper of the present invention.

[0028] Figure 9 It is a front perspective structural schematic diagram of another embodiment of the present invention.

[0029] Figure 10 For the present invention Figure 9 The partial enlarged structural schematic diagram at B in it.

[0030] In the figure: 1, workbench; 2, mounting seat; 3, grinding wheel cutting machine; 4, first dust-proof cover; 5, second dust-proof cover; 6, dust suction port; 7, filter plate; 8, dust suction hopper; 9, dust suction pipe; 10, vacuum cleaner; 11, partition plate; 12, first mounting plate; 13, second mounting plate; 14, first electric cylinder; 15, second electric cylinder; 16, first housing; 17, first rotating shaft; 18, first gear; 19, connecting block; 20, first rack; 21, second housing; 22, first moving plate; 23, first spring; 24, first slider; 25, first sliding hole; 26, second rack; 27, second gear; 28, pushing block; 29, partition board; 30, first docking port; 31, collection box; 32, second docking port; 33, piston plate; 34, piston rod; 35, first connecting plate; 36, second spring; 37, air guide hose; 38, third housing; 39, second moving plate; 40, third spring; 41, third rack; 42, fourth spring; 43, moving block; 44, baffle; 45, avoidance hole; 46, wedge surface; 47, wedge block; 48, ∏-shaped frame; 49, second rotating shaft; 50, third gear; 51, fourth rack; 52, fourth gear; 53, pre-filter frame body; 54, support plate; 55, first guide rod; 56, auxiliary wheel; 57, fifth spring; 58, corrugated plate; 59, side plate; 60, second guide rod; 61, universal ball; 62, sixth spring; 63, seesaw; 64, transmission rod; 65, piston cylinder; 66, U-shaped protrusion; 67, exhaust pipe; 68, exhaust fan; 69, third rotating shaft; 70, fan blade; 71, fifth gear; 72, first connecting rod; 73, fifth rack; 74, second connecting rod; 75, second connecting plate; 76, scraper. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1. Please refer to Figures 1 to 10 , a dust-proof device for a grinding wheel cutting machine, including a workbench 1, and a mounting seat 2 and a grinding wheel cutting machine 3 are provided at the upper end of the workbench 1; On the upper end of the workbench 1 and on both sides of the mounting seat 2, a first dust-proof cover 4 and a second dust-proof cover 5 with opposite openings are respectively slidably provided. A dust suction port 6 is opened on the side wall of the first dust-proof cover 4. A dust suction hopper 8 communicating with the dust suction port 6 is fixedly provided outside the first dust-proof cover 4. A dust suction pipe 9 is fixedly communicated with the dust suction hopper 8. One end of the dust suction pipe 9 away from the dust suction hopper 8 is fixedly communicated with a vacuum cleaner 10; Inside the first dust cover 4 and at the dust suction port 6, a pre-filtering device is provided. The pre-filtering device includes a pre-filtering frame body 53, and a filter plate 7 is provided inside the pre-filtering frame body 53.

[0033] On both sides of the upper end of the workbench 1, a first mounting plate 12 and a second mounting plate 13 are respectively and fixedly provided. A first electric cylinder 14 and a second electric cylinder 15 are respectively mounted on the first mounting plate 12 and the second mounting plate 13. The output ends of the first electric cylinder 14 and the second electric cylinder 15 are respectively fixedly connected to the first dust cover 4 and the second dust cover 5.

[0034] More specifically, in this embodiment: The mounting base 2 can move horizontally, and the grinding wheel cutting machine 3 can move longitudinally. The mounting base 2 is provided with a T-shaped groove. After the workpiece to be processed is installed on its corresponding fixture, the workpiece together with the fixture is then installed on the mounting base 2. Then, by the operation of the first electric cylinder 14 and the second electric cylinder 15, the first dust cover 4 and the second dust cover 5 are driven to approach each other until the first dust cover 4 and the second dust cover 5 contact and close, enclosing the workpiece, the mounting base 2, and the grinding wheel cutting machine 3 inside the first dust cover 4 and the second dust cover 5. Then, the workpiece is cut by the cooperation of the grinding wheel cutting machine 3 and the mounting base 2; During the cutting process, the first dust cover 4 and the second dust cover 5 can prevent the generated waste chips and dust from drifting into the external air, playing a dust-proof role. At the same time, the vacuum cleaner 10 works, and the waste chips and dust generated by cutting are first sucked into the pre-filtering frame body 53. The large-particle waste chips and dust in the waste chips and dust are intercepted by the filter plate 7, preventing the large-particle waste chips from damaging the filter element of the vacuum cleaner 10 during long-term use and reducing the service life of the vacuum cleaner 10. Then, the small-particle waste chips and dust enter the vacuum cleaner 10 through the suction pipe 9, and the dust and waste chips are centrally collected and processed, playing a dust-removing role; After the workpiece cutting is completed, the vacuum cleaner 10 stops working. By the reverse operation of the first electric cylinder 14 and the second electric cylinder 15, the first dust cover 4 and the second dust cover 5 are driven to move away from each other and open, and then the processed workpiece can be taken off.

[0035] Embodiment 2. This embodiment is an improvement made on the basis of Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that the large-particle impurities intercepted in the pre-filtering device will fall from the pre-filtering device during the movement of the first dust cover. Specifically, please refer to Figures 1 to 4 , a partition plate 11 is provided at the pre-filtering frame body 53. Inside the first dust cover 4, a switching mechanism for driving the partition plate 11 to open or close is provided. The switching mechanism includes a first housing 16, the first housing 16 is fixedly provided inside the first dust cover 4. Inside the first housing 16, a first rotating shaft 17 is rotatably provided through a bearing. A first gear 18 is fixedly installed on the first rotating shaft 17. A connecting block 19 is fixedly provided on the partition plate 11. A first rack 20 is fixedly provided on the connecting block 19. The first rack 20 is meshed and connected with the first gear 18; A second housing 21 is fixedly provided at the upper end of the first housing 16. A first moving plate 22 is slidably arranged in the second housing 21. A first spring 23 is connected between the first moving plate 22 and the inner wall of the second housing 21. A first slider 24 is fixedly provided at the lower end of the first moving plate 22. A first sliding hole 25 for slidably connecting the first slider 24 is formed in the upper wall of the first housing 16. The first slider 24 penetrates through the first sliding hole 25 and extends into the first housing 16. A second rack 26 is fixedly provided at the lower end of the first slider 24. A second gear 27 meshingly connected with the second rack 26 is fixedly installed on the first rotating shaft 17; A pushing block 28 is fixedly provided on the inner bottom wall of the second dust cover 5. The pushing block 28 corresponds to the position of the first moving plate 22.

[0036] More specifically, in this embodiment: when the first dust cover 4 and the second dust cover 5 are opened, that is, in the initial state, the isolation plate 11 seals the opening of the pre-filter frame 53. During the process of the first dust cover 4 and the second dust cover 5 moving closer to each other, when the pushing block 28 contacts the first moving plate 22, the pushing block 28 pushes the first moving block 22 to move towards the inside of the second housing 21. At this time, the first spring 23 is compressed. When the first moving block 22 moves in the second housing 21, it drives the first slider 24 to slide in the first sliding hole 25 and synchronously drives the second rack 26 to move. Since the second rack 26 is meshingly connected with the second gear 27, it drives the second gear 27 and the first rotating shaft 17 to rotate, thereby driving the first gear 18 to rotate. Since the first rack 20 is meshingly connected with the first gear 18, it drives the first rack 20 to move upward, and further drives the isolation plate 11 to move upward, so that the opening of the pre-filter frame 53 is exposed, facilitating the entry of dust; During the process of the first dust cover 4 and the second dust cover 5 moving away from each other, the pushing block 28 gradually moves away from the first moving plate 22, so that the first moving plate 22 and the first spring 23 gradually lose pressure, and the first spring 23 gradually resets, driving the first moving plate 22 to move reversely and reset in the second housing 21, thereby driving the second rack 26 to move reversely, and further driving the isolation plate 11 to move reversely, that is, the isolation plate 11 moves downward to seal the opening of the pre-filter frame 53, preventing the large particle waste chips and impurities intercepted in the pre-filter frame 53 from falling out of the pre-filter frame 53, and enabling the centralized cleaning of the large particle waste chips and impurities in the pre-filter frame 53.

[0037] Embodiment Three, this embodiment is an improvement made on the basis of Embodiment Two. The purpose of this embodiment is to facilitate the solution of the problem that the large particle impurities intercepted in the pre-filter device are not easy to clean. Specifically, please refer to Figures 1 to 6 , the pre-filter frame 53 is fixedly arranged inside the first dust cover 4 and is located at the dust suction port 6. A partition plate 29 is fixedly provided inside the pre-filter frame 53 and at the lower end of the dust suction port 6. The filter plate 7 is fixedly arranged at the upper end of the partition plate 29; On the outside of the first dust cover 4 and at the lower end of the partition plate 29, a first pair of interfaces 30 communicating with the pre-filter frame body 53 are fixedly provided. On the upper end of the workbench 1, a collection box 31 is provided. A second pair of interfaces 32 are fixedly communicated with one side wall of the collection box 31 facing the first pair of interfaces 30. The second pair of interfaces 32 are adapted to the first pair of interfaces 30. An air extraction pipe 67 is fixedly communicated with the collection box 31, and an air extraction fan 68 is fixedly communicated with the air extraction pipe 67.

[0038] On the workbench 1, a piston cylinder 65 is provided. A piston plate 33 is provided inside the piston cylinder 65. One end of the piston plate 33 is fixedly provided with a piston rod 34. The piston rod 34 extends outside the piston cylinder 65 and is fixedly provided with a first connecting plate 35. A second spring 36 is connected between the first connecting plate 35 and the piston cylinder 65 and on the outside of the piston rod 34. One end of the piston cylinder 65 away from the piston rod 34 is fixedly communicated with a gas guide hose 37. The end of the gas guide hose 37 away from the piston cylinder 65 is communicated with the pre-filter frame body 53. A piston driving mechanism is provided on the workbench 1.

[0039] Among them, the piston driving mechanism includes a third housing 38. The third housing 38 is fixedly connected to the first dust cover 4. A second moving plate 39 is fixedly and slidably connected inside the third housing 38. A third spring 40 is connected between the second moving plate 39 and the inner wall of the third housing 38. One end of the second moving plate 39 away from the third spring 40 is fixedly provided with a third rack 41. Two groups of fourth springs 42 are connected to the upper end of the workbench 1. The upper ends of the two groups of fourth springs 42 are commonly connected to a moving block 43. A baffle 44 is fixedly provided on the upper end of the moving block 43. An avoidance hole 45 is opened at the lower end of the baffle 44. A wedge surface 46 is provided in the middle of the lower end of the moving block 43. A wedge block 47 is fixedly provided on the outside of the first dust cover 4 and at the lower end of the third housing 38. The wedge block 47 corresponds to the wedge surface 46. A ∏-shaped frame 48 is fixedly provided on the upper end of the workbench 1. A second rotating shaft 49 is rotatably provided inside the ∏-shaped frame 48 through a bearing. The second rotating shaft 49 is located on the side of the baffle 44 away from the third rack 41. A third gear 50 is fixedly provided on the second rotating shaft 49. The third gear 50 is adapted to the third rack 41. One end of the first connecting plate 35 away from the piston rod 34 is fixedly provided with a fourth rack 51. A fourth gear 52 meshingly connected with the fourth rack 51 is fixedly provided on the second rotating shaft 49.

[0040] More specifically, in this embodiment: The fourth spring 42 is a tension spring. When the fourth spring 42 is in the original state, the third rack 41 is aligned with the part of the upper end of the baffle 44 without the avoidance hole 45. After the workpiece is cut, that is, after the vacuum cleaner 10 finishes working, large particle impurities are intercepted in the pre-filter housing 53. When it is necessary to clean the large particle impurities intercepted in the pre-filter housing 53 after the first dust-proof cover 4 and the second dust-proof cover 5 are synchronously separated and opened, the first electric cylinder 14 continues to work, driving the first dust-proof cover 4 to continue to move away from the second dust-proof cover 5, driving the first docking port 30 to move towards the second docking port 32, and docking the first docking port 30 with the second docking port 32. During this process, the first dust-proof cover 4 drives the third housing 38, the third spring 40, the second moving plate 39, the third rack 41 and the wedge block 47 to move. When the third rack 41 moves to contact the baffle 44, the third rack 41 is blocked by the baffle 44, and the first dust-proof cover 4 continues to drive the third housing 38 to move. The third spring 40 is gradually compressed and stores energy, and the wedge block 47 gradually moves towards the wedge surface 46 at the lower end of the moving block 43. When the wedge block 47 moves to the wedge surface 46, when the wedge block 47 continues to move, the wedge block 47 pushes the moving block 43 to move upward, thereby driving the baffle 44 to move upward. When the avoidance hole 45 of the baffle 44 moves to align with the third rack 41, the third spring 40 loses pressure and rebounds, and the third rack 41 is no longer blocked by the baffle 44, so that the second moving plate 39 and the third rack 41 move out of the third housing 38. The third rack 41 passes through the avoidance hole 45 and meshes with the third gear 50. After the third rack 41 meshes with the third gear 50, when the third rack 41 continues to move, it drives the third gear 50 and the second rotating shaft 49 to rotate, thereby driving the fourth gear 52 to rotate. Since the fourth gear 52 is meshed and connected with the fourth rack 51, when the fourth gear 52 rotates, it drives the fourth rack 51 to move, thereby driving the first connecting plate 35 to move towards the piston cylinder 65, and further driving the piston rod 34 and the piston plate 33 to move in the piston cylinder 65, and inflating the pre-filter housing 53 through the air guide hose 37. The gas introduced by the air guide hose 37 is in the space between the filter plate 7 and the isolation plate 11 in the pre-filter housing 53. At the same time, the exhaust fan 68 works, causing a negative pressure in the collection box 31. Cooperating with the inflation effect of the air guide hose 37, the large particle waste impurities intercepted in the pre-filter housing 53 are introduced into the collection box 31 through the first docking port 30 and the second docking port 32, completing the cleaning of the pre-filter device.

[0041] Embodiment 4. This embodiment is an improvement based on Embodiment 3. The purpose of this embodiment is to facilitate the solution of the problem that large particle impurities intercepted in the pre-filter device are adsorbed on the surfaces of the filter plate 7 and the pre-filter housing 53 and are not easy to clean. Specifically, please refer to Figures 1 to 9 , a shaking mechanism is provided on the upper end of the workbench 1 and on one side of the first dust-proof cover 4. The shaking mechanism is used to drive the first dust-proof cover 4 to shake during movement and during the closing process of the isolation plate 11.

[0042] More specifically, in this embodiment: When it is necessary to clean the large particle impurities intercepted in the pre-filter housing 53, during the process of the first dust cover 4 moving towards the collection box 31, the dithering mechanism drives the first dust cover 4 to dither and vibrate, so that the pre-filter device vibrates, and the large particle impurity dust adsorbed on the surface of the filter plate 7 and the pre-filter housing 53 is shaken off.

[0043] Embodiment 5. This embodiment is an explanatory description based on Embodiment 4. Specifically, please refer to Figures 1 to 7 , the dithering mechanism includes a support plate 54, the support plate 54 is fixedly arranged on the outer side wall of the first dust cover 4, two groups of T-shaped first guide rods 55 are slidably arranged on the support plate 54, a pair of auxiliary wheels 56 are jointly installed at the lower ends of the two groups of first guide rods 55, a fifth spring 57 is connected between the auxiliary wheels 56 and the support plate 54, corrugated plates 58 are arranged at both sides of the upper end of the workbench 1 and are corresponding to the auxiliary wheels 56, a rocker 63 is hinged on the support plate 54, a transmission rod 64 is fixedly arranged on the auxiliary wheel 56, and the transmission rod 64 is located below the rocker 63.

[0044] More specifically, in this embodiment: The gravity of the end of the rocker 63 away from the first dust cover 4 is greater than that of the end of the rocker 63 towards the first dust cover 4. In the original state, the end of the rocker 63 towards the first dust cover 4 is in an upwardly tilted state. When it is necessary to clean the large particle impurities intercepted in the pre-filter housing 53, during the process of the first dust cover 4 moving towards the collection box 31, the auxiliary wheels 56 on both sides of the first dust cover 4 will pass over the corrugated plates 58. Since the corrugated plates 58 are uneven, when the auxiliary wheels 56 move on the corrugated plates 58, the auxiliary wheels 56 will move up and down. When the auxiliary wheels 56 move upward, they drive the transmission rod 64 to move upward, thereby driving the end of the rocker 63 away from the first dust cover 4 to swing upward, and the end of the rocker 63 towards the first dust cover 4 to swing downward, knocking on the first dust cover 4, so that the rocker 63 continuously knocks on the first dust cover 4, causing the first dust cover 4 and the pre-filter device to vibrate, and shaking off the large particle impurity dust adsorbed on the surface of the filter plate 7 and the pre-filter housing 53, avoiding incomplete cleaning. During this process, the partition plate 11 is located at the pre-filter housing 53, blocking the opening of the pre-filter housing 53, so that the large particle impurity dust will not fall out of the pre-filter device.

[0045] Embodiment 6. This embodiment is an explanatory description based on Embodiment 4. Specifically, please refer to Figures 1 to 8, a third rotating shaft 69 is provided inside the pre-filter housing 53. A fan blade 70 is fixedly provided on the third rotating shaft 69. A fifth gear 71 is fixedly provided on the third rotating shaft 69 and outside the pre-filter housing 53. A first connecting rod 72 is fixedly connected to the auxiliary wheel 56. One end of the first connecting rod 72 away from the auxiliary wheel 56 is fixedly provided with a fifth rack 73 meshed with the fifth gear 71. The upper end of the fifth rack 73 is fixedly provided with a second connecting rod 74. One end of the second connecting rod 74 away from the fifth rack 73 extends into the pre-filter housing 53 and is fixedly provided with a second connecting plate 75. A scraper 76 in contact with the filter plate 7 is fixedly provided on the second connecting plate 75.

[0046] More specifically, in this embodiment: when the auxiliary wheel 56 moves up and down, through the transmission of the first connecting rod 72, the fifth rack 73 is driven to move up and down, the fifth gear 71 is driven to rotate repeatedly, the third rotating shaft 69 is driven to rotate, and thus the fan blade 70 is driven to rotate, raising the large particle impurities and dust in the pre-filter housing 53, improving the effect of discharging the large particle impurities into the collection box 31; at the same time, when the fifth rack 73 moves up and down, through the transmission of the second connecting rod 74, the second connecting plate 75 and the scraper 76 are driven to move up and down, and the dust and impurities attached to the surface of the filter plate 7 are scraped off by the scraper 76, improving the cleaning effect of the filter plate 7. The scraper 76 is inclined to reduce the accumulation of dust and impurities on the scraper 76.

[0047] Embodiment Seven, this embodiment is an explanatory description based on Embodiment Four. Specifically, please refer to Figures 1 to 6 , 9 and 10. The shaking mechanism includes two groups of side plates 59. T-shaped second guide rods 60 are slidably connected to the side plates 59 at equal intervals. A universal ball 61 is fixedly provided on the side of the second guide rod 60 facing the first dust-proof cover 4. A sixth spring 62 is connected between the universal ball 61 and the side plate 59 and outside the second guide rod 60. U-shaped protrusions 66 are fixedly provided on both sides of the first dust-proof cover 4.

[0048] More specifically, in this embodiment: when it is necessary to clean the large particle impurities intercepted in the pre-filter housing 53, during the process of the first dust-proof cover 4 moving towards the collection box 31, the U-shaped protrusions 66 on the side wall of the first dust-proof cover 4 will sequentially pass through multiple groups of universal balls 61, and multiple groups of universal balls 61 will continuously form an impact force on the first dust-proof cover 4 in sequence, so that the first dust-proof cover 4 and the pre-filter device will vibrate, shaking off the large particle impurities and dust adsorbed on the surface of the filter plate 7 and the pre-filter housing 53, avoiding incomplete cleaning. During this process, the partition plate 11 is located at the pre-filter housing 53, blocking the opening of the pre-filter housing 53, so that the large particle impurities and dust will not fall out of the pre-filter device.

[0049] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0050] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dust-proof device for a grinding wheel cutting machine, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with a mounting seat (2) and a grinding wheel cutting machine (3); On the upper end of the workbench (1) and on both sides of the mounting seat (2), a first dust cover (4) and a second dust cover (5) with opposite openings are respectively slidably arranged. A dust suction port (6) is formed on the side wall of the first dust cover (4). A dust suction hopper (8) communicated with the dust suction port (6) is fixedly arranged on the outside of the first dust cover (4). A dust suction pipe (9) is fixedly communicated with the dust suction hopper (8). One end of the dust suction pipe (9) far from the dust suction hopper (8) is fixedly communicated with a vacuum cleaner (10); A pre-filtering device is arranged at the dust suction port (6) inside the first dust cover (4). The pre-filtering device includes a pre-filtering frame body (53). A filter plate (7) is arranged inside the pre-filtering frame body (53). A partition plate (11) is arranged at the pre-filtering frame body (53). A switching mechanism for driving the partition plate (11) to open or close is arranged inside the first dust cover (4).

2. The dust-proof device for a grinding wheel cutting machine according to claim 1, wherein: On both sides of the upper end of the workbench (1), a first mounting plate (12) and a second mounting plate (13) are respectively fixedly arranged. A first electric cylinder (14) and a second electric cylinder (15) are respectively mounted on the first mounting plate (12) and the second mounting plate (13). The output ends of the first electric cylinder (14) and the second electric cylinder (15) are respectively fixedly connected with the first dust cover (4) and the second dust cover (5).

3. The dust-proof device for a grinding wheel cutting machine according to claim 2, wherein: The switching mechanism includes a first housing (16). The first housing (16) is fixedly arranged inside the first dust cover (4). A first rotating shaft (17) is rotatably arranged inside the first housing (16) through a bearing. A first gear (18) is fixedly mounted on the first rotating shaft (17). A connecting block (19) is fixedly arranged on the partition plate (11). A first rack (20) is fixedly arranged on the connecting block (19). The first rack (20) is meshed and connected with the first gear (18); A second housing (21) is fixedly arranged at the upper end of the first housing (16). A first moving plate (22) is slidably arranged inside the second housing (21). A first spring (23) is connected between the first moving plate (22) and the inner wall of the second housing (21). A first slider (24) is fixedly arranged at the lower end of the first moving plate (22). A first sliding hole (25) for slidably connecting the first slider (24) is formed on the upper wall of the first housing (16). The first slider (24) penetrates through the first sliding hole (25) and extends into the first housing (16). A second rack (26) is fixedly arranged at the lower end of the first slider (24). A second gear (27) meshed and connected with the second rack (26) is fixedly mounted on the first rotating shaft (17); A push block (28) is fixedly arranged on the inner bottom wall of the second dust cover (5). The push block (28) corresponds to the position of the first moving plate (22).

4. The dust-proof device for a grinding wheel cutting machine according to claim 3, wherein: The pre-filter housing (53) is fixedly arranged inside the first dust cover (4) and at the dust suction port (6). A partition plate (29) is fixedly arranged inside the pre-filter housing (53) and at the lower end of the dust suction port (6). The filter plate (7) is fixedly arranged at the upper end of the partition plate (29). A first connection port (30) communicating with the pre-filter housing (53) is fixedly arranged outside the first dust cover (4) and at the lower end of the partition plate (29). A collection box (31) is arranged at the upper end of the workbench (1). A second connection port (32) is fixedly communicated with one side wall of the collection box (31) facing the first connection port (30). The second connection port (32) is adapted to the first connection port (30). An air extraction pipe (67) is fixedly communicated with the collection box (31), and the air extraction pipe (67) is fixedly communicated with an air extraction fan (68).

5. The dust-proof device for a grinding wheel cutting machine according to claim 4, wherein: A piston cylinder (65) is arranged on the workbench (1). A piston plate (33) is arranged inside the piston cylinder (65). One end of the piston plate (33) is fixedly provided with a piston rod (34). The piston rod (34) extends outside the piston cylinder (65) and is fixedly provided with a first connecting plate (35). A second spring (36) is connected between the first connecting plate (35) and the piston cylinder (65) and outside the piston rod (34). One end of the piston cylinder (65) far from the piston rod (34) is fixedly communicated with a gas guide hose (37), and the end of the gas guide hose (37) far from the piston cylinder (65) is communicated with the pre-filter housing (53). A piston driving mechanism is arranged on the workbench (1).

6. The dust-proof device for a grinding wheel cutting machine according to claim 5, characterized in that: The piston driving mechanism includes a third housing (38). The third housing (38) is fixedly connected with the first dust cover (4). A second moving plate (39) is fixedly and slidably connected inside the third housing (38). A third spring (40) is connected between the second moving plate (39) and the inner wall of the third housing (38). A third rack (41) is fixedly arranged at one end of the second moving plate (39) far from the third spring (40). Two groups of fourth springs (42) are connected to the upper end of the workbench (1). A moving block (43) is jointly connected to the upper ends of the two groups of fourth springs (42). A baffle (44) is fixedly arranged at the upper end of the moving block (43). An avoidance hole (45) is opened at the lower end of the baffle (44). A wedge surface (46) is arranged in the middle at the lower end of the moving block (43). A wedge block (47) is fixedly arranged outside the first dust cover (4) and at the lower end of the third housing (38). The wedge block (47) corresponds to the wedge surface (46). A Π-shaped frame (48) is fixedly arranged at the upper end of the workbench (1). A second rotating shaft (49) is rotatably arranged inside the Π-shaped frame (48) through a bearing. The second rotating shaft (49) is located on the side of the baffle (44) far from the third rack (41). A third gear (50) is fixedly arranged on the second rotating shaft (49). The third gear (50) is adapted to the third rack (41). One end of the first connecting plate (35) away from the piston rod (34) is fixedly provided with a fourth rack (51), and a fourth gear (52) meshed with the fourth rack (51) is fixedly provided on the second rotating shaft (49).

7. The dust-proof device for a grinding wheel cutting machine according to claim 6, characterized in that: A vibration mechanism is provided at the upper end of the workbench (1) and on one side of the first dust cover (4), and the vibration mechanism is used to drive the first dust cover (4) to vibrate when moving.

8. The dust-proof device for a grinding wheel cutting machine according to claim 7, wherein: The vibration mechanism includes a support plate (54), the support plate (54) is fixedly arranged on the outer side wall of the first dust cover (4), two sets of T-shaped first guide rods (55) are slidably arranged on the support plate (54), a auxiliary wheel (56) is jointly installed at the lower ends of the two sets of first guide rods (55), a fifth spring (57) is connected between the auxiliary wheel (56) and the support plate (54), corrugated plates (58) are arranged on both sides of the first dust cover (4) at the upper end of the workbench (1), the corrugated plates (58) correspond to the auxiliary wheel (56), a rocker (63) is hinged on the support plate (54), a transmission rod (64) is fixedly arranged on the auxiliary wheel (56), and the transmission rod (64) is located below the rocker (63).

9. The dust-proof device for a grinding wheel cutting machine according to claim 8, wherein: A third rotating shaft (69) is arranged in the pre-filter frame body (53), a fan blade (70) is fixedly arranged on the third rotating shaft (69), a fifth gear (71) is fixedly arranged outside the pre-filter frame body (53) on the third rotating shaft (69), a first connecting rod (72) is fixedly connected to the auxiliary wheel (56), a fifth rack (73) meshed with the fifth gear (71) is fixedly arranged at one end of the first connecting rod (72) away from the auxiliary wheel (56), a second connecting rod (74) is fixedly arranged at the upper end of the fifth rack (73), one end of the second connecting rod (74) away from the fifth rack (73) extends into the pre-filter frame body (53) and is fixedly provided with a second connecting plate (75), and a scraper (76) in contact with the filter plate (7) is fixedly arranged on the second connecting plate (75).

10. The dust-proof device for a grinding wheel cutting machine according to claim 7, characterized in that: The vibration mechanism includes two sets of side plates (59), T-shaped second guide rods (60) are equidistantly and slidably connected to the side plates (59), universal ball bearings (61) are fixedly arranged on the sides of the second guide rods (60) facing the first dust cover (4), sixth springs (62) are connected between the universal ball bearings (61) and the side plates (59) and on the outer sides of the second guide rods (60), and U-shaped protrusions (66) are fixedly arranged on both sides of the first dust cover (4).

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