Environment-friendly sand suction and dust removal system for workpiece polishing

Abstract

The invention relates to the technical field of polishing, in particular to an environment-friendly sand suction and dust removal system for workpiece polishing, which comprises a polishing working bin, a suction connecting pipe is arranged on the polishing working bin in a communicating manner, a shunt connecting pipe is arranged on the suction connecting pipe in a communicating manner, and two communicating branch pipes are arranged on the shunt connecting pipe in a communicating manner; the two communicating branch pipes are both slidably connected with blocking sliding plates, the two communicating branch pipes are both slidably provided with filtering plates, the ends, away from the flow dividing connecting pipe, of the two communicating branch pipes are provided with suction pipes in a communicating mode, a negative pressure fan is arranged in the suction pipes, and through cooperation of the blocking sliding plates and the pre-wetting component, the negative pressure fan is arranged in the suction pipes; when the blocking sliding plate slides downwards, a square piston extrudes water in a liquid collecting box body through a liquid outlet connecting bent pipe, the water enters a liquid separation transverse pipe and is finally sprayed out of an atomization spray head, and the sprayed water is used for wetting a filter plate, so that dust flying during disassembly of the filter plate is reduced, and the environmental protection performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to an environment-friendly sand suction and dust removal system for workpiece grinding. 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 high-hardness particles) to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness. The grinding process usually produces a large amount of dust, which not only pollutes the working environment, but also may pose a serious threat to the health of operators, such as causing respiratory diseases and other health problems. The dust removal system for grinding usually includes a filtration system. The filter plate in the system is a key component responsible for capturing and separating dust particles in the air. However, after a period of use, the filter plate will be clogged due to the accumulation of dust, resulting in a decrease in filtration efficiency, so it needs to be replaced regularly. At present, the dust removal devices for grinding on the market have shortcomings when replacing the filter plate. When replacing the filter plate, it is necessary to stop the operation. This practice not only leads to the interruption of the grinding operation and reduces production efficiency, but also increases maintenance costs and operational complexity. Summary of the invention

[0003] The purpose of the present invention is to provide an environmentally friendly sand suction and dust removal system for workpiece grinding to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an environmentally friendly sand suction and dust removal system for workpiece grinding, comprising a grinding work chamber, a suction connecting pipe is connected to the grinding work chamber, a shunt connecting pipe is connected to the suction connecting pipe, two connecting branch pipes are connected to the shunt connecting pipe, both of the two connecting branch pipes are slidably connected with a baffle slide, both of the two connecting branch pipes are slidably provided with a filter plate, one end of the two connecting branch pipes away from the shunt connecting pipe is connected with a suction pipe, a negative pressure fan is provided in the suction pipe, an interlaced driving component for driving the two baffle slides to move in opposite directions is provided between the two connecting branch pipes, a convenient fixing component for limiting and fixing the filter plate is provided on the connecting branch pipe, and a pre-wetting component for moistening the filter plate is provided inside the baffle slide.

[0005] Preferably, the staggered driving component includes a driving motor, a driving worm, a driving worm wheel, a supporting shaft, a driving gear and an L-shaped gear plate. The driving motor is fixedly mounted on the connecting branch pipe through a mounting plate. The output end of the driving motor is fixedly connected to the driving worm, and the driving worm wheel is meshed on the driving worm.

[0006] Preferably, one end of the driving worm gear is fixedly connected to a supporting shaft, and the supporting shaft is rotatably connected to the connecting branch pipe through a supporting plate, and the end of the supporting shaft away from the driving worm gear is fixedly connected to a driving gear, and L-shaped tooth plates are meshed on both sides of the driving gear, and two L-shaped tooth plates are respectively slidably connected to two connecting branch pipes, and one end of the two L-shaped tooth plates is respectively fixedly connected to two partition slides.

[0007] Preferably, the convenient fixing component includes a connecting support plate, a vertical sliding push plate, a fixed cavity, a fixed sliding column, a return spring, an L-shaped folding plate, a push connecting plate, a hinged fixed seat, a movable plug rod, a fixed slot and a sliding side plate. The connecting support plate is fixedly installed on the partition slide, and a vertical sliding push plate is fixedly installed on the lower end of the connecting support plate. The fixed cavity is opened on the connecting branch pipe, and the vertical sliding push plate slides into the fixed cavity.

[0008] Preferably, a plurality of fixed sliding columns are fixedly installed on the bottom of the fixed cavity, an L-shaped folding plate is slidably connected to the fixed sliding column, a return spring is sleeved on the fixed sliding column, one end of the return spring is fixedly connected to the bottom of the fixed cavity, and the other end of the return spring is fixedly connected to the lower end of the L-shaped folding plate.

[0009] Preferably, one end of the L-shaped folding plate is fixedly connected to a sliding side plate, and the sliding side plate is slidably connected in the fixed cavity. The end of the L-shaped folding plate close to the filter plate is hinged with a plurality of push-connecting plates, and the end of the push-connecting plate away from the L-shaped folding plate is hinged with a hinged fixing seat, one end of the hinged fixing seat is fixedly connected to a movable plug rod, and the movable plug rod is slidably connected to the inside of the connecting branch pipe. The fixed slot is opened on the filter plate, and the movable plug rod is inserted into the fixed slot.

[0010] Preferably, the pre-wetting component includes a liquid collecting box body, a liquid inlet elbow, a one-way liquid inlet valve, a liquid outlet connecting elbow, a one-way liquid outlet valve, a liquid storage box body, a liquid inlet connecting pipe, an atomizing nozzle, a fixed sliding rod, a square piston, a supporting flat plate and a liquid separation transverse pipe. The liquid storage box body is fixedly installed inside the baffle slide, and the upper end of the liquid storage box body is connected to a liquid inlet connecting pipe.

[0011] Preferably, the upper end of the liquid inlet connecting pipe extends out of the baffle plate, the liquid collecting box body is fixedly installed inside the baffle plate, the upper end of the liquid collecting box body is connected with a liquid inlet elbow pipe, the end of the liquid inlet elbow pipe away from the liquid collecting box body extends into the liquid storage box body, and a one-way liquid inlet valve is arranged on the liquid inlet elbow pipe.

[0012] Preferably, the liquid collecting box body is connected with a liquid outlet connecting elbow, a one-way liquid outlet valve is arranged on the liquid outlet connecting elbow, one end of the liquid outlet connecting elbow away from the liquid collecting box body extends out of a baffle plate and is connected with a liquid separation transverse pipe, a plurality of atomizing nozzles are arranged on the liquid separation transverse pipe, and one end of the supporting flat plate is fixedly connected to the baffle plate.

[0013] Preferably, the other end of the supporting flat plate is fixedly connected to the liquid separation transverse tube, the fixed sliding rod is fixedly installed at the bottom of the connecting branch pipe, the upper end of the fixed sliding rod successively extends into the baffle sliding plate and the liquid collecting box body, the upper end of the fixed sliding rod is fixedly connected with a square piston, and the square piston is slidably arranged inside the liquid collecting box body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Through the cooperation of the baffle plate and the pre-wetting component, when the baffle plate slides downward, the square piston squeezes out the water inside the liquid collecting box through the liquid outlet connecting elbow, the water enters the liquid separation cross pipe, and is finally sprayed out from the atomizing nozzle. The sprayed water is used to moisten the filter plate to reduce the flying of dust when the filter plate is disassembled, thereby improving environmental protection performance.

[0015] Through the cooperation of the blocking slide and the convenient fixing component, when the blocking slide slides downward, the vertical sliding push plate contacts the L-shaped folding plate and drives the L-shaped folding plate to move downward, and drives the moving plug rod to move out of the fixed slot by pushing the connecting plate and the hinged fixing seat, thereby releasing the restriction of the moving plug rod on the filter plate, which is convenient for directly taking out the filter plate; when the blocking slide slides upward, the blocking slide drives the vertical sliding push plate to move upward through the connecting support plate, and the vertical sliding push plate is separated from the L-shaped folding plate, and under the elastic action of the reset spring, drives the L-shaped folding plate to move upward, and the L-shaped folding plate drives the moving plug rod to extend into the fixed slot by pushing the connecting plate and the hinged fixing seat, thereby realizing the limited fixation of the filter plate, ensuring the stability of the filter plate, and facilitating the rapid installation of the filter plate.

[0016] By providing two connecting branch pipes and staggered driving components, the driving gear is driven to rotate, and the driving gear drives the L-shaped tooth plate installed on the connecting branch pipe where the filter plate to be replaced is located to slide downward, thereby driving a blocking slide plate to move downward to close the air duct of the connecting branch pipe, and the other L-shaped tooth plate slides upward, driving the blocking slide plate thereon to move upward, thereby opening the air duct of the other connecting branch pipe, thereby realizing the alternating use of the two connecting branch pipes. When one connecting branch pipe is in a working state, the other connecting branch pipe is in a closed state, thereby realizing that the filter plate on the connecting branch pipe in a closed state can be replaced without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the staggered driving component of the present invention.

[0019] Figure 4 It is a schematic diagram of the local structure of the staggered driving component of the present invention.

[0020] Figure 5 It is a schematic diagram of the local structure of the connecting branch pipe of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the convenient fixing component of the present invention.

[0022] Figure 7 It is a schematic structural diagram of another state of the convenient fixing component of the present invention.

[0023] Figure 8 It is a schematic diagram of the internal structure of the connecting branch pipe of the present invention.

[0024] Fig. 9 It is a schematic diagram of the internal structure of the baffle slide plate of the present invention.

[0025] Fig.10 It is a schematic diagram of the internal structure of the liquid collecting box body of the present invention.

[0026] Fig.11 It is a schematic structural diagram of another state of the square piston of the present invention.

[0027] Fig.12 This is a schematic structural diagram of the pre-wetting component of the present invention from another perspective.

[0028] Fig.13 It is a partial detail illustration of the present invention.

[0029] In the figure: 1. grinding work chamber; 2. suction connection pipe; 3. diversion connection pipe; 4. connecting branch pipe; 5. baffle plate; 6. staggered driving component; 7. convenient fixing component; 8. filter plate; 9. suction pipe; 10. pre-wetting component; 11. negative pressure fan; 61. driving motor; 62. driving worm; 63. driving worm wheel; 64. supporting shaft; 65. driving gear; 66. L-shaped tooth plate; 71. connecting support plate; 72. vertical sliding push plate; 73. fixed cavity; 74. fixed sliding column; 75 , reset spring; 76, L-shaped folding plate; 77, push connecting plate; 78, hinged fixed seat; 79, movable plug rod; 710, fixed slot; 711, sliding side plate; 101, liquid collecting box body; 102, liquid inlet elbow; 103, one-way liquid inlet valve; 104, liquid outlet connecting elbow; 105, one-way liquid outlet valve; 106, liquid storage box body; 107, liquid inlet connecting pipe; 108, atomizing nozzle; 109, fixed sliding rod; 1010, square piston; 1011, supporting flat plate; 1012, liquid separation horizontal tube. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 13The present invention provides a technical solution: an environmentally friendly sand suction and dust removal system for workpiece grinding, comprising a grinding work chamber 1, a suction connecting pipe 2 is connected to the grinding work chamber 1, a shunt connecting pipe 3 is connected to the suction connecting pipe 2, two connecting branch pipes 4 are connected to the shunt connecting pipe 3, both connecting branch pipes 4 are slidably connected with a baffle slide 5, both connecting branch pipes 4 are slidably provided with a filter plate 8, one end of the two connecting branch pipes 4 away from the shunt connecting pipe 3 is connected with a suction pipe 9, a negative pressure fan 11 is arranged in the suction pipe 9, an interlaced driving component 6 for driving the two baffle slides 5 to move in opposite directions is arranged between the two connecting branch pipes 4, and a convenient device for limiting and fixing the filter plate 8 is arranged on the connecting branch pipe 4. The fixing member 7, the interior of the baffle slide 5 is provided with a pre-wetting member 10 for wetting the filter plate 8, the lower end of the connecting branch pipe 4 is connected to a storage box, and the storage box is provided with a sealing door for collecting the sprayed water and dust. By providing two connecting branch pipes 4 and a staggered driving member 6, the driving gear 65 can be rotated, and the driving gear 65 drives the L-shaped tooth plate 66 installed on the connecting branch pipe 4 where the filter plate 8 to be replaced is located to slide downward, thereby driving a baffle slide 5 to move downward to close the air duct of the connecting branch pipe 4, and the other L-shaped tooth plate 66 slides upward, driving the baffle slide 5 on it to move upward, realizing the opening of the air duct of the other connecting branch pipe 4, thereby realizing the alternation of the two connecting branch pipes 4. In use, when one connecting branch pipe 4 is in working state, the other connecting branch pipe 4 is in closed state, so that the filter plate 8 on the connecting branch pipe 4 in closed state can be replaced without stopping the machine. Through the cooperation of the baffle plate 5 and the pre-wetting component 10, when the baffle plate 5 slides downward, the square piston 1010 squeezes the water inside the liquid collecting box body 101 through the liquid outlet connecting elbow 104, and the water enters the liquid separation cross pipe 1012 and is finally sprayed out from the atomizing nozzle 108. The sprayed water is used to moisten the filter plate 8 to reduce the flying of dust when the filter plate 8 is disassembled, thereby improving the environmental protection performance. Through the cooperation of the baffle plate 5 and the convenient fixing component 7, when the baffle plate 5 slides downward, the vertical sliding push plate 7 2 contacts with the L-shaped folding plate 76 and drives the L-shaped folding plate 76 to move downward, and drives the movable plug rod 79 to move out of the fixed slot 710 by pushing the connecting plate 77 and the hinged fixing seat 78, thereby releasing the restriction of the movable plug rod 79 on the filter plate 8, so as to facilitate the direct removal of the filter plate 8. When the blocking slide plate 5 slides upward, the blocking slide plate 5 drives the vertical sliding push plate 72 to move upward by connecting the support plate 71, and the vertical sliding push plate 72 is separated from the L-shaped folding plate 76. Under the elastic action of the return spring 75, the L-shaped folding plate 76 is driven to move upward. The L-shaped folding plate 76 drives the movable plug rod 79 to extend into the fixed slot 710 by pushing the connecting plate 77 and the hinged fixing seat 78, thereby realizing the limited fixation of the filter plate 8 and ensuring the stability of the filter plate 8.It is convenient to quickly install the filter plate 8.

[0032] The staggered driving component 6 includes a driving motor 61, a driving worm 62, a driving worm wheel 63, a supporting shaft 64, a driving gear 65 and an L-shaped tooth plate 66. The driving motor 61 is fixedly installed on the connecting branch pipe 4 through a mounting plate. The output end of the driving motor 61 is fixedly connected to the driving worm 62, and the driving worm wheel 63 is meshed on the driving worm 62. One end of the driving worm wheel 63 is fixedly connected to the supporting shaft 64. The supporting shaft 64 is rotatably connected to the connecting branch pipe 4 through a supporting plate. One end of the supporting shaft 64 away from the driving worm wheel 63 is fixedly connected to the driving gear 65. Both sides of the driving gear 65 are meshed with L-shaped tooth plates 66. Two L-shaped tooth plates 66 are respectively slidably connected to the two connecting branch pipes 4. One end of the two L-shaped tooth plates 66 is respectively fixedly connected to the two baffle slides 5. In actual use, in order to determine whether the filter plate 8 needs to be cleaned or replaced, the air flow passing through the filter plate 8 is monitored, and the blockage of the filter plate 8 is determined according to the air flow. This process is prior art and will not be described in detail here. When too much dust accumulates on the filter plate 8 and becomes clogged and needs to be cleaned and replaced, the drive motor 61 is started, and the drive motor 61 drives the drive worm 62 to rotate, and the drive worm 62 drives the drive worm wheel 63 to rotate, and the drive worm wheel 63 drives the drive gear 65 to rotate through the support shaft 64, and the drive gear 65 drives the L-shaped tooth plate 66 installed on the connecting branch pipe 4 where the filter plate 8 to be replaced is located to slide downward, thereby driving a blocking slide plate 5 to move downward to close the air duct of the connecting branch pipe 4, and the other L-shaped tooth plate 66 slides upward, driving the blocking slide plate 5 on it to move upward, thereby realizing the opening of the air duct of the other connecting branch pipe 4, thereby realizing the alternating use of the two connecting branch pipes 4, and when one connecting branch pipe 4 is in a working state, the other connecting branch pipe 4 is in a closed state, thereby realizing that the filter plate 8 on the closed connecting branch pipe 4 can be replaced without stopping the machine.

[0033] The convenient fixing member 7 includes a connecting support plate 71, a vertical sliding push plate 72, a fixed cavity 73, a fixed slide column 74, a return spring 75, an L-shaped folding plate 76, a push connecting plate 77, a hinged fixed seat 78, a movable plug rod 79, a fixed slot 710 and a sliding side plate 711. The connecting support plate 71 is fixedly installed on the partition slide plate 5, and a vertical sliding push plate 72 is fixedly installed at the lower end of the connecting support plate 71. The fixed cavity 73 is opened on the connecting branch pipe 4, and the vertical sliding push plate 72 slides into the fixed cavity 73. A plurality of fixed slide columns 74 are fixedly installed at the bottom of the fixed cavity 73. The fixed slide column 74 is slidably connected with an L-shaped folding plate 76, and a plurality of fixed slide columns 74 are sleeved on the fixed slide column 74. The positioning spring 75, one end of the return spring 75 is fixedly connected to the bottom of the fixed cavity 73, the other end of the return spring 75 is fixedly connected to the lower end of the L-shaped folding plate 76, one end of the L-shaped folding plate 76 is fixedly connected to a sliding side plate 711, and the sliding side plate 711 is slidably connected in the fixed cavity 73, the end of the L-shaped folding plate 76 close to the filter plate 8 is hinged with a plurality of push connecting plates 77, and the end of the push connecting plate 77 away from the L-shaped folding plate 76 is hinged with a hinged fixed seat 78, one end of the hinged fixed seat 78 is fixedly connected with a movable plug rod 79, and the movable plug rod 79 is slidably connected to the inside of the connecting branch pipe 4, and a fixed slot 710 is opened on the filter plate 8, and the movable plug rod 79 is inserted into the fixed slot 710.

[0034] The pre-wetting component 10 includes a liquid collecting box body 101, a liquid inlet elbow 102, a one-way liquid inlet valve 103, a liquid outlet connecting elbow 104, a one-way liquid outlet valve 105, a liquid storage box body 106, a liquid inlet connecting pipe 107, an atomizing nozzle 108, a fixed slide rod 109, a square piston 1010, a supporting flat plate 1011 and a liquid separation transverse pipe 1012. The liquid storage box body 106 is fixedly installed inside the baffle slide 5, and the upper end of the liquid storage box body 106 is connected to the liquid inlet connecting pipe 107, and the upper end of the liquid inlet connecting pipe 107 extends out of the baffle slide 5. The liquid collecting box body 101 is fixedly installed inside the baffle slide 5, and the upper end of the liquid collecting box body 101 is connected to the liquid inlet elbow 102, and the end of the liquid inlet elbow 102 away from the liquid collecting box body 101 extends into the liquid storage box body 106, and the liquid inlet elbow 102 is provided with A one-way liquid inlet valve 103, a liquid outlet connecting elbow 104 is connected to the liquid collecting box body 101, a one-way liquid outlet valve 105 is arranged on the liquid outlet connecting elbow 104, one end of the liquid outlet connecting elbow 104 away from the liquid collecting box body 101 extends out of the baffle slide 5 and is connected to a liquid separation transverse pipe 1012, a plurality of atomizing nozzles 108 are arranged on the liquid separation transverse pipe 1012, one end of the supporting flat plate 1011 is fixedly connected to the baffle slide 5, and the other end of the supporting flat plate 1011 is fixedly connected to the liquid separation transverse pipe 1012, a fixed slide rod 109 is fixedly installed at the bottom of the connecting branch pipe 4, the upper end of the fixed slide rod 109 extends into the baffle slide 5 and the liquid collecting box body 101 successively, the upper end of the fixed slide rod 109 is fixedly connected to a square piston 1010, and the square piston 1010 is slidably arranged inside the liquid collecting box body 101.

[0035] In actual use, the negative pressure fan 11 is turned on to create a negative pressure environment. The dust generated during the grinding process enters the connecting branch pipe 4 through the suction connecting pipe 2 and the shunt connecting pipe 3. At this time, one connecting branch pipe 4 is in a working state, and the other connecting branch pipe 4 is in a closed state. The filter plate 8 in the connecting branch pipe 4 in a working state filters the dust. When too much dust accumulates on the filter plate 8 and it is blocked and needs to be cleaned and replaced, the driving motor 61 is started, and the driving motor 61 drives the driving worm 62 to rotate, and the driving worm 62 drives the driving worm wheel 63 to rotate. The driving worm wheel 63 drives the driving gear 65 to rotate through the supporting shaft 64, thereby driving the connecting branch pipe 4 located at the filter plate 8 that needs to be replaced. The L-shaped tooth plate 66 on the upper part is made to slide downward, and this action drives the baffle plate 5 connected thereto to move downward, thereby closing the air duct of the connecting branch pipe 4. At the same time, the other L-shaped tooth plate 66 slides upward, driving the baffle plate 5 on it to move upward, opening the air duct of the other connecting branch pipe 4. In this way, the two connecting branch pipes 4 are alternately used. When one connecting branch pipe 4 is in a working state, the other connecting branch pipe 4 is in a closed state, so that the filter plate 8 on the closed connecting branch pipe 4 can be replaced without stopping the machine. When the baffle plate 5 slides downward, the square piston 1010 passes the water inside the liquid collecting box body 101 through the liquid outlet connecting elbow 104. The water is squeezed out, and enters the liquid separation transverse tube 1012, and is finally sprayed out from the atomizing nozzle 108. The sprayed water is used to moisten the filter plate 8 to reduce the flying of dust when the filter plate 8 is disassembled. At the same time, the vertical sliding push plate 72 is driven to slide downward by connecting the support plate 71, and the vertical sliding push plate 72 contacts the L-shaped folding plate 76 and drives the L-shaped folding plate 76 to move downward. The L-shaped folding plate 76 slides downward on the fixed sliding column 74 and squeezes the reset spring 75. The L-shaped folding plate 76 moves downward, and the moving plug rod 79 is driven to move out of the fixed slot 710 by pushing the connecting plate 77 and the hinged fixing seat 78, so as to release the restriction of the moving plug rod 79 on the filter plate 8, so as to facilitate the direct removal of the filter plate 8. The convenience of taking out is improved; when the baffle plate 5 slides upward, a negative pressure is formed in the liquid collecting box body 101, and the water in the liquid storing box body 106 enters the liquid collecting box body 101 through the liquid inlet elbow 102. At the same time, the baffle plate 5 drives the vertical sliding push plate 72 to move upward through the connecting support plate 71, and the vertical sliding push plate 72 is separated from the L-shaped folding plate 76. Under the elastic action of the reset spring 75, the L-shaped folding plate 76 is driven to move upward, and the L-shaped folding plate 76 drives the moving rod 79 to extend into the fixed slot 710 through the pushing connecting plate 77 and the hinged fixing seat 78, thereby realizing the limited fixation of the filter plate 8, ensuring the stability of the filter plate 8, and facilitating the rapid installation of the filter plate 8.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sand suction and dust removal system for workpiece grinding, comprising a grinding work chamber (1), wherein the grinding work chamber (1) is connected to a suction connection pipe (2), and wherein: The suction connecting pipe (2) is connected to a shunt connecting pipe (3), and the shunt connecting pipe (3) is connected to two connecting branch pipes (4). The two connecting branch pipes (4) are slidably connected to a baffle slide (5), and the two connecting branch pipes (4) are slidably provided with a filter plate (8). The ends of the two connecting branch pipes (4) away from the shunt connecting pipe (3) are connected to a suction pipe (9), and a negative pressure fan (11) is provided in the suction pipe (9). An interlaced driving component (6) for driving the two baffle slides (5) to move in opposite directions is provided between the two connecting branch pipes (4), and a convenient fixing component (7) for limiting and fixing the filter plate (8) is provided on the connecting branch pipe (4). A pre-wetting component (10) for wetting the filter plate (8) is provided inside the baffle slide (5).

2. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 1 is characterized by: The staggered driving component (6) comprises a driving motor (61), a driving worm (62), a driving worm wheel (63), a supporting rotating shaft (64), a driving gear (65) and an L-shaped toothed plate (66); the driving motor (61) is fixedly mounted on the connecting branch pipe (4) via a mounting plate; the output end of the driving motor (61) is fixedly connected to the driving worm (62); and the driving worm wheel (63) is meshed with the driving worm (62).

3. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 2 is characterized in that: One end of the driving worm gear (63) is fixedly connected to a support shaft (64), and the support shaft (64) is rotatably connected to the connecting branch pipe (4) through a support plate. One end of the supporting shaft (64) away from the driving worm gear (63) is fixedly connected to a driving gear (65), and both sides of the driving gear (65) are meshed with L-shaped tooth plates (66), and two L-shaped tooth plates (66) are respectively slidably connected to the two connecting branch pipes (4), and one end of the two L-shaped tooth plates (66) is respectively fixedly connected to the two partition slide plates (5).

4. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 3 is characterized by: The convenient fixing component (7) comprises a connecting support plate (71), a vertical sliding push plate (72), a fixed cavity (73), a fixed sliding column (74), a return spring (75), an L-shaped folding plate (76), a push connecting plate (77), a hinged fixing seat (78), a movable plug rod (79), a fixed slot (710) and a sliding side plate (711); the connecting support plate (71) is fixedly mounted on the partition slide plate (5); a vertical sliding push plate (72) is fixedly mounted on the lower end of the connecting support plate (71); the fixed cavity (73) is opened on the connecting branch pipe (4); and the vertical sliding push plate (72) slides into the fixed cavity (73).

5. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 4 is characterized in that: A plurality of fixed slide columns (74) are fixedly mounted on the bottom of the fixed cavity (73), an L-shaped folding plate (76) is slidably connected to the fixed slide column (74), a return spring (75) is sleeved on the fixed slide column (74), one end of the return spring (75) is fixedly connected to the bottom of the fixed cavity (73), and the other end of the return spring (75) is fixedly connected to the lower end of the L-shaped folding plate (76).

6. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 5 is characterized by: One end of the L-shaped folding plate (76) is fixedly connected to a sliding side plate (711), and the sliding side plate (711) is slidably connected in the fixed cavity (73). One end of the L-shaped folding plate (76) close to the filter plate (8) is hinged to a plurality of push connecting plates (77), and one end of the push connecting plate (77) away from the L-shaped folding plate (76) is hinged to a hinged fixed seat (78). One end of the hinged fixed seat (78) is fixedly connected to a movable plug rod (79), and the movable plug rod (79) is slidably connected to the inside of the connecting branch pipe (4). The fixed slot (710) is provided on the filter plate (8), and the movable plug rod (79) is inserted into the fixed slot (710).

7. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 1 is characterized by: The pre-wetting component (10) comprises a liquid collecting box body (101), a liquid inlet elbow (102), a one-way liquid inlet valve (103), a liquid outlet connecting elbow (104), a one-way liquid outlet valve (105), a liquid storage box body (106), a liquid inlet connecting pipe (107), an atomizing nozzle (108), a fixed sliding rod (109), a square piston (1010), a supporting flat plate (1011) and a liquid separation transverse pipe (1012); the liquid storage box body (106) is fixedly mounted inside the baffle slide plate (5); and the upper end of the liquid storage box body (106) is connected to the liquid inlet connecting pipe (107).

8. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 7 is characterized in that: The upper end of the liquid inlet connecting pipe (107) extends out of the baffle plate (5); the liquid collecting box body (101) is fixedly mounted inside the baffle plate (5); the upper end of the liquid collecting box body (101) is connected to a liquid inlet elbow (102); one end of the liquid inlet elbow (102) away from the liquid collecting box body (101) extends into the interior of the liquid storage box body (106); and a one-way liquid inlet valve (103) is provided on the liquid inlet elbow (102).

9. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 8 is characterized in that: The liquid collecting box body (101) is connected to a liquid outlet connecting elbow (104), a one-way liquid outlet valve (105) is provided on the liquid outlet connecting elbow (104), one end of the liquid outlet connecting elbow (104) away from the liquid collecting box body (101) extends out of the baffle slide (5) and is connected to a liquid separation transverse pipe (1012), a plurality of atomizing nozzles (108) are provided on the liquid separation transverse pipe (1012), and one end of the supporting flat plate (1011) is fixedly connected to the baffle slide (5).

10. The environmentally friendly sand suction and dust removal system for workpiece grinding according to claim 9, characterized in that: The other end of the supporting flat plate (1011) is fixedly connected to the liquid separation transverse tube (1012), the fixed sliding rod (109) is fixedly mounted on the bottom of the connecting branch tube (4), the upper end of the fixed sliding rod (109) successively extends into the baffle sliding plate (5) and the liquid collecting box body (101), the upper end of the fixed sliding rod (109) is fixedly connected to a square piston (1010), and the square piston (1010) is slidably arranged inside the liquid collecting box body (101).

Images