Gypsum plaster board slitting method and device

Abstract

The invention relates to the technical field of gypsum board cutting, in particular to a paper surface gypsum board slitting method and device.The paper surface gypsum board slitting device comprises a supporting base, two supporting plates are fixedly connected to the upper end of the supporting base, a receding groove is formed in the upper end of the supporting base, a connecting base is arranged on the upper side of the receding groove, and a connecting box is arranged on the lower side of the receding groove; two sliding plates are fixedly connected to the upper end of the connecting box, the sliding plates are connected into the receding grooves in a sliding mode, and the connecting base and the connecting box are connected through a tightening mechanism; the gypsum plaster board is positioned and clamped through the clamping mechanism, the connecting base makes contact with the surface of the gypsum plaster board through the tightening mechanism, the connecting base is driven to move through the transmission mechanism, the cutter moves along with the connecting base to cut the gypsum plaster board, and the gypsum plaster board is cut through the cutter under the driving of the fan. Dust stored in the connecting box and the connecting cavity is sucked into the filtering box, and powder generated on the upper side and the lower side of the cutting knife is collected at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board cutting, in particular to a gypsum board cutting method and device. Background Art

[0002] For example, the Chinese patent with the announcement number CN118238286A discloses a gypsum board cutting mechanism, which can adjust the distance between the clamping plates according to different sizes of cardboard gypsum boards by setting a second screw rod and a clamping plate, so that the position of the gypsum board can be fixed by four clamping plates, and the gypsum board can be pressed downward during the cutting process by using a pressing component.

[0003] However, the above scheme has the following shortcomings: in the above patent, when realizing the function of cutting the gypsum board, the fan is driven to rotate when the cutter rotates, so that the dust generated by the cutting is sucked into the water tank, and the gypsum powder entering the water tank is collected and processed, and can be recycled. However, during the actual use of the cutter to cut the gypsum board, we found that gypsum powder will fly on the upper and lower sides of the gypsum board, and the above patent can only collect the powder on the upper side of the gypsum board, and cannot achieve a more complete collection of the powder generated on the upper and lower sides of the gypsum board during the cutting process. For this reason, we introduce a new paper-faced gypsum board cutting method and device. Summary of the invention

[0004] The object of the present invention is to provide a gypsum board cutting method and device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A gypsum board cutting device comprises a support base, wherein two support plates are fixedly connected to the upper end of the support base, a clearance groove is provided in the upper end of the support base, a connecting seat is provided on the upper side of the clearance groove, and a connecting box is provided on the lower side, two slide plates are fixedly connected to the upper end of the connecting box, the slide plates are slidably connected in the clearance groove, the connecting seat and the connecting box are connected to each other through a tightening mechanism, and the tightening mechanism makes the connecting seat and the connecting box contact with the support base; The upper end of the connecting seat is fixedly connected with a connecting block, and the connecting block is connected with a transmission mechanism. The transmission mechanism is arranged in two support plates, and the connecting block is driven to move by the transmission mechanism so that the connecting seat follows the movement. A connecting cavity is provided in the lower end of the connecting seat, and a cutting knife is movably connected in the connecting cavity. A first transmission motor is fixedly installed in the connecting seat, and the output end of the first transmission motor is fixedly connected to the cutting knife. A telescopic hose is fixedly connected to one side of the connecting seat and the connecting box, and the connecting cavity is communicated with the telescopic hose. The other ends of the two telescopic hoses extend into the filter box and are communicated with the cavity, and the cavity is provided in the filter box; A fan is fixedly installed in the cavity, and the output end of the fan is fixedly connected to the connecting pipe. The connecting pipe is fixedly installed in the filter box, and one end extends into the inner side of the filter box. A stirring mechanism is provided on the inner side of the filter box. An exhaust hole is opened in the upper end of the filter box. Two clamping mechanisms are provided on the upper end of the support base. A limiting block is fixedly connected to one side of the left support plate, and a bottom cover is installed on the lower end of the filter box through a screw.

[0006] Preferably, the tensioning mechanism includes a limit rod, which is fixedly connected to the connecting seat, the lower end of the limit rod passes through the give way groove and is slidably connected to the limit plate, the limit plate is fixedly connected to the connecting box, and a limit spring is sleeved on the outer side of the limit rod, one end of the limit spring is fixedly connected to the limit plate, and the other end is fixedly connected to the limit rod.

[0007] Preferably, the transmission mechanism includes a screw rod, which is threaded in a connecting block, and both ends of the screw rod are movably connected to a cross-shaped slider, which is slidably connected to a cross-shaped slot, which is opened in a support plate, and one end of the cross-shaped slider is fixedly connected to a second transmission motor, and an output end of the second transmission motor is fixedly connected to the screw rod.

[0008] Preferably, the stirring mechanism includes a connecting rod, which is movably connected in the filter box, and the outer sides of the connecting rod are fixedly connected with fan nets. The upper end of the filter box is fixedly connected with a connecting motor, and the output end of the connecting motor is fixedly connected to the connecting rod.

[0009] Preferably, the clamping mechanism includes a clamping plate, two T-blocks are fixedly connected to the lower end of the clamping plate, the T-blocks are slid in the T-slots, the T-slots are opened in the upper end of the support base, one side of the clamping plate is fixedly connected to a T-shaped connecting rod, the T-shaped connecting rod is slid in the support plate, the outer side of the T-shaped connecting rod is fixedly connected to a support spring, one end of the support spring is fixedly connected to the clamping plate, and the other end is fixedly connected to the support plate.

[0010] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a gypsum board cutting method, which is used in the above-mentioned gypsum board cutting device, comprising: S1. By pushing the two clamping plates and pulling the connecting seat upward, the gypsum board is placed on the upper end of the supporting base, the pushing of the clamping plates and the pulling of the connecting seat are released, and the clamping plates clamp the gypsum board under the elastic force of the supporting spring, and the connecting seat is pressed on the top of the gypsum board under the elastic force of the limit spring, the first transmission motor is turned on to drive the cutting knife to rotate, the second transmission motor is turned on to drive the screw rod to rotate, and the cutting knife follows the movement of the connecting seat to cut the gypsum board; S2. Turn on the fan so that the dust is sucked into the cavity by the two telescopic hoses. The connecting pipe guides the dust to the inside of the filter box. The air will carry the dust into the water source stored in the filter box for filtration. Turn on the connecting motor to drive the connecting rod to rotate. The air bubbles carrying dust are destroyed by the rotation of the fan net, so that the water source and the dust are fully in contact. S3. The dust is filtered in the water source of the filter box, and the excess air is discharged into the external environment through the exhaust hole. When the cutting is completed, pull up the connecting seat to remove the cut gypsum board from the supporting base, and remove the bottom cover by loosening the screw to collect the water source with filtered dust.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention positions and clamps the gypsum board through a clamping mechanism, makes the connecting seat contact the surface of the gypsum board through a tightening mechanism, drives the connecting seat to move through a transmission mechanism, and the cutting knife follows the movement of the connecting seat to cut the gypsum board, and the movement of the connecting seat also drives the connecting box to move, and under the influence of the fan, the dust stored in the connecting box and the connecting cavity is sucked into the filter box, and the dust is filtered and collected by setting a water source in the filter box, so that the powder generated on the upper and lower sides of the cutting knife can be collected simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the connection relationship between the connection seat and the connection box of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the filter box of the present invention; Figure 4 It is a schematic diagram of the top view structure of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the connection relationship between the screw rod and the connecting block of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the connection relationship between the screw rod and the connecting seat of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the connection relationship between the connecting rod and the fan net of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the connection relationship between the clamping plate and the T-shaped connecting rod of the present invention.

[0013] In the figure: 1. support base; 2. clearance groove; 3. clamping plate; 4. cutting knife; 5. connection box; 6. exhaust hole; 7. connection seat; 8. connection block; 9. screw rod; 10. second transmission motor; 11. cross-shaped slide groove; 12. telescopic hose; 13. connecting pipe; 14. connecting motor; 15. connecting rod; 16. fan; 17. fan net; 18. filter box; 19. bottom cover; 20. cavity; 21. T-slot; 22. T-type connecting rod; 23. T-block; 24. support spring; 25. limit block; 26. cross-shaped slider; 27. screw rod; 28. limit rod; 29. ​​limit plate; 30. limit spring; 31. connection cavity; 32. slide plate; 33. support plate; 34. first transmission motor. DETAILED DESCRIPTION

[0014] 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.

[0015] See also Figure 1-8 , the present invention provides a technical solution: Embodiment 1:

[0016] A gypsum board cutting device comprises a support base 1, wherein two support plates 33 are fixedly connected to the upper end of the support base 1, a clearance groove 2 is opened in the upper end of the support base 1, and the clearance groove 2 is used to make way for a cutting knife 4, a connecting seat 7 is provided on the upper side of the clearance groove 2, and a connecting box 5 is provided on the lower side, and two slide plates 32 are fixedly connected to the upper end of the connecting box 5, and the slide plates 32 are slidably connected to the clearance groove 2. Through the arrangement of the two slide plates 32 and the connecting box 5, powder generated by the cutting knife 4 during cutting is collected, the connecting seat 7 and the connecting box 5 are connected to each other through a tightening mechanism, and the connecting seat 7 and the connecting box 5 are contacted with the support base 1 through the tightening mechanism. When the gypsum board is placed on the support base 1, driven by the tightening mechanism, the lower end of the connecting seat 7 will fit with the surface of the gypsum board.

[0017] A connecting block 8 is fixedly connected to the upper end of the connecting seat 7, and the connecting block 8 is connected to a transmission mechanism. The transmission mechanism is arranged in two support plates 33. The connecting block 8 is driven to move by the transmission mechanism, so that the connecting seat 7 moves accordingly. A connecting cavity 31 is opened in the lower end of the connecting seat 7, and a cutting knife 4 is movably connected in the connecting cavity 31. A first transmission motor 34 is fixedly installed in the connecting seat 7. The output end of the first transmission motor 34 is fixedly connected to the cutting knife 4. The first transmission motor 34 drives the cutting knife 4 connected to its output end to rotate, so that the cutting knife 4 can cut the gypsum board, and the powder generated by the cutting knife 4 during cutting is blocked and collected through the connecting cavity 31.

[0018] The connecting seat 7 and one side of the connecting box 5 are fixedly connected with a telescopic hose 12, and the connecting cavity 31 is connected to the telescopic hose 12. The telescopic hose 12 is arranged in a spiral shape. When the connecting seat 7 and the connecting box 5 move, the telescopic hose 12 will be straightened. When the connecting seat 7 and the connecting box 5 return to their initial positions, the telescopic hose 12 shrinks again into a spiral state. The other ends of the two telescopic hoses 12 extend into the filter box 18 and are connected to the cavity 20. The cavity 20 is opened in the filter box 18. A fan 16 is fixedly installed in the cavity 20. The specific model of the fan 16 can be selected according to the corresponding size and model when in use. The output end of the fan 16 is fixedly connected to the connecting pipe 13. When the fan 16 is turned on, suction is generated. The powder generated when the cutting knife 4 cuts the gypsum board will be blocked by the connecting cavity 31 and the connecting box 5. At this time, under the rotation of the fan 16, the dust will be sucked into the cavity 20 by the two telescopic hoses 12. The dust entering the cavity 20 enters the inner side of the filter box 18 under the guidance of the connecting pipe 13.

[0019] The connecting pipe 13 is fixedly installed in the filter box 18, and one end thereof extends into the inner side of the filter box 18. A water source is provided in the filter box 18. A stirring mechanism is provided inside the filter box 18. The bubbles carrying dust are destroyed by the stirring mechanism, so that the water source and the dust are fully in contact, and the bubbles carrying the dust are prevented from being separated from the water source. An exhaust hole 6 is provided in the upper end of the filter box 18. The exhaust hole 6 is used to discharge the filtered air, and can also be used to add water to the filter box 18. The upper end of the support base 1 is provided with Two clamping mechanisms, one side of the left support plate 33 is fixedly connected to the limiting block 25. Through the setting of the clamping mechanism, the gypsum board can fit with the limiting block 25. Through the setting of the limiting block 25, the gypsum board will not contact the support plate 33, resulting in the cutting knife 4 being unable to completely cut the gypsum board. The lower end of the filter box 18 is installed with a bottom cover 19 through a screw 27. When the cutting is completed, the bottom cover 19 can be removed by loosening the screw 27, and the water source with filtered dust can be collected at this time. Embodiment 2:

[0020] On the basis of Example 1, in order to enable the connecting seat 7 to drive the connecting box 5 to move when it moves, the tensioning mechanism includes a limit rod 28, which is fixedly connected to the connecting seat 7, and the lower end of the limit rod 28 passes through the make way groove 2 and is slidably connected to the limit plate 29, and the limit plate 29 is fixedly connected to the connecting box 5. A limit spring 30 is sleeved on the outer side of the limit rod 28, and one end of the limit spring 30 is fixedly connected to the limit plate 29, and the other end is fixedly connected to the limit rod 28. When the connecting seat 7 is pulled upward, the limit rod 28 will be driven to start moving, and the limit rod 28 compresses the limit spring 30 when moving. When the gypsum board is placed on the supporting base 1, the pull on the connecting seat 7 is released, and under the elastic force of the limit spring 30, the lower end of the connecting seat 7 fits against the upper end of the gypsum board.

[0021] The transmission mechanism includes a screw rod 9, which is screwed in the connecting block 8, and the two ends of the screw rod 9 are respectively movably connected to the cross-shaped slider 26, and the cross-shaped slider 26 is slidably connected in the cross-shaped slide groove 11. The cross-shaped slide groove 11 is provided in the support plate 33. When the connecting seat 7 moves upward, the screw rod 9 screwed in the connecting block 8 will be driven to start moving, and the movement of the screw rod 9 drives the cross-shaped slider 26 to move along the cross-shaped slide groove 11. One end of a cross-shaped slider 26 is fixedly connected to the second transmission motor 10, and the output end of the second transmission motor 10 is fixedly connected to the screw rod 9. When the second transmission motor 10 is turned on, the screw rod 9 is driven to rotate, and the rotation of the screw rod 9 drives the connecting block 8 to move, and the movement of the connecting block 8 drives the connecting seat 7 to move. At this time, the cutting knife 4 follows the movement to cut the gypsum board; The stirring mechanism includes a connecting rod 15, which is movably connected to the filter box 18. Fan nets 17 are fixedly connected to the outer sides of the connecting rod 15. The upper end of the filter box 18 is fixedly connected to a connecting motor 14. The output end of the connecting motor 14 is fixedly connected to the connecting rod 15. When the connecting motor 14 is turned on, the connecting rod 15 is driven to rotate. The rotation of the connecting rod 15 drives a plurality of fan nets 17 to rotate. The bubbles carrying dust are destroyed by the rotation of the fan nets 17, so that the water source is fully in contact with the dust, and the bubbles carrying the dust are prevented from being separated from the water source. The clamping mechanism includes a clamping plate 3. The lower end of the clamping plate 3 is fixedly connected to two T-blocks 23. The T-block 23 It is slidably connected in the T-slot 21, which is opened in the upper end of the supporting base 1. A T-connecting rod 22 is fixedly connected to one side of the clamping plate 3. The T-connecting rod 22 is slidably connected in the supporting plate 33. A supporting spring 24 is fixedly connected to the outer side of the T-connecting rod 22. One end of the supporting spring 24 is fixedly connected to the clamping plate 3, and the other end is fixedly connected to the supporting plate 33. Push the two clamping plates 3 backward and pull the connecting seat 7 upward at the same time to place the gypsum board on the upper end of the supporting base 1. After placement, release the push on the clamping plate 3 and the pull on the connecting seat 7. At this time, under the elastic force of the supporting spring 24, the two clamping plates 3 clamp the gypsum board.

[0022] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a gypsum board cutting method, which is used in a gypsum board cutting device, comprising: S1. By pushing the two clamping plates 3 and pulling the connecting seat 7 upward, the gypsum board is placed on the upper end of the supporting base 1, and the pushing of the clamping plates 3 and the pulling of the connecting seat 7 are released. Under the elastic force of the supporting spring 24, the clamping plates 3 clamp the gypsum board. Under the elastic force of the limit spring 30, the connecting seat 7 is pressed on the top of the gypsum board. The first transmission motor 34 is turned on to drive the cutting knife 4 to rotate, and the second transmission motor 10 is turned on to drive the screw rod 9 to rotate. The cutting knife 4 follows the movement of the connecting seat 7 to cut the gypsum board. S2. Turn on the fan 16 so that the dust is sucked into the cavity 20 by the two telescopic hoses 12. The connecting pipe 13 guides the dust to the inside of the filter box 18. The air will carry the dust into the water source stored in the filter box 18 for filtration. Turn on the connecting motor 14 to drive the connecting rod 15 to rotate. The air bubbles carrying dust are destroyed by the rotation of the fan net 17, so that the water source and the dust are fully in contact. S3. The dust is filtered in the water source of the filter box 18, and the excess air is discharged into the external environment through the exhaust hole 6. When the cutting is completed, the connecting seat 7 is pulled upward to remove the cut gypsum board from the supporting base 1, and the bottom cover 19 can be removed by loosening the screw 27 to collect the water source with filtered dust.

[0023] Working principle: when in use, push the two clamping plates 3 backwards and pull the connecting seat 7 upwards at the same time to place the gypsum board on the upper end of the supporting base 1. After the placement is completed, release the push on the clamping plates 3 and the pull on the connecting seat 7. At this time, under the elastic force of the supporting spring 24, the two clamping plates 3 clamp the gypsum board. Under the elastic force of the limit spring 30, the connecting seat 7 is pressed on the top of the gypsum board. At this time, turn on the first transmission motor 34 to drive the cutting knife 4 connected to its output end to start rotating. The cutting knife 4 rotates to cut the gypsum board. Turn on the second transmission motor 10 to drive the screw rod 9 to rotate. The screw rod 9 rotates to drive the connecting block 8 to move. The connection block 8 moves to drive the connecting seat 7 to move. At this time, the cutting knife 4 follows the movement to cut the gypsum board. At the same time, when the connecting seat 7 moves, the connecting box 5 will move along with it, and the fan 16 will be turned on to generate suction. The powder generated by the cutting knife 4 cutting the gypsum board will be blocked by the connecting cavity 31 and the connecting box 5. At this time, under the rotation of the fan 16, the dust will be sucked into the cavity 20 by the two telescopic hoses 12. The dust entering the cavity 20 enters the inner side of the filter box 18 under the guidance of the connecting pipe 13. Since a water source is stored in the filter box 18, the air will carry dust into the water source stored in the filter box 18 at this time. By turning on the connecting motor 14, the connecting rod 15 is driven to rotate, and the rotation of the connecting rod 15 drives several fan nets 17 to rotate. The air bubbles carrying dust are destroyed by the rotation of the fan net 17, so that the water source and the dust are fully in contact, and the air bubbles carrying dust are prevented from escaping from the water source. The dust is filtered in the water source of the filter box 18, and the excess air is discharged into the external environment through the exhaust hole 6. When the cutting is completed, the cut gypsum board can be removed from the support base 1 by pulling up the connecting seat 7, and the bottom cover 19 can be removed by loosening the screw 27. At this time, the water source with filtered dust can be collected.

[0024] 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. A gypsum board cutting device, comprising a supporting base, characterized in that: Two support plates are fixedly connected to the upper end of the support base, a clearance groove is opened in the upper end of the support base, a connecting seat is provided on the upper side of the clearance groove, and a connecting box is provided on the lower side, two slide plates are fixedly connected to the upper end of the connecting box, and the slide plates are slidably connected in the clearance groove, and the connecting seat and the connecting box are connected to each other through a tightening mechanism, and the tightening mechanism makes the connecting seat and the connecting box contact with the support base; The upper end of the connecting seat is fixedly connected with a connecting block, and the connecting block is connected with a transmission mechanism. The transmission mechanism is arranged in two support plates, and the connecting block is driven to move by the transmission mechanism so that the connecting seat follows the movement. A connecting cavity is provided in the lower end of the connecting seat, and a cutting knife is movably connected in the connecting cavity. A first transmission motor is fixedly installed in the connecting seat, and the output end of the first transmission motor is fixedly connected to the cutting knife. A telescopic hose is fixedly connected to one side of the connecting seat and the connecting box, and the connecting cavity is communicated with the telescopic hose. The other ends of the two telescopic hoses extend into the filter box and are communicated with the cavity, and the cavity is provided in the filter box; A fan is fixedly installed in the cavity, and the output end of the fan is fixedly connected to the connecting pipe. The connecting pipe is fixedly installed in the filter box, and one end extends into the inner side of the filter box. A stirring mechanism is provided on the inner side of the filter box. An exhaust hole is opened in the upper end of the filter box. Two clamping mechanisms are provided on the upper end of the support base. A limiting block is fixedly connected to one side of the left support plate, and a bottom cover is installed on the lower end of the filter box through a screw.

2. A gypsum board cutting device according to claim 1, characterized in that: The tensioning mechanism includes a limit rod, which is fixedly connected to the connecting seat. The lower end of the limit rod passes through a clearance groove and is slidably connected to the limit plate. The limit plate is fixedly connected to the connecting box. A limit spring is sleeved on the outer side of the limit rod. One end of the limit spring is fixedly connected to the limit plate, and the other end is fixedly connected to the limit rod.

3. The gypsum board cutting device according to claim 1, characterized in that: The transmission mechanism includes a screw rod, which is threaded in a connecting block, and both ends of the screw rod are movably connected to a cross-shaped slider, which is slidably connected to a cross-shaped slot, which is provided in a support plate, and one end of the cross-shaped slider is fixedly connected to a second transmission motor, and an output end of the second transmission motor is fixedly connected to the screw rod.

4. The gypsum board cutting device according to claim 1, characterized in that: The stirring mechanism includes a connecting rod, which is movably connected to the filter box. Fan nets are fixedly connected to the outer sides of the connecting rod. A connecting motor is fixedly connected to the upper end of the filter box, and the output end of the connecting motor is fixedly connected to the connecting rod.

5. The gypsum board cutting device according to claim 1, characterized in that: The clamping mechanism includes a clamping plate, two T-blocks are fixedly connected to the lower end of the clamping plate, the T-blocks are slidably connected in the T-slots, the T-slots are opened in the upper end of the support base, one side of the clamping plate is fixedly connected to a T-shaped connecting rod, the T-shaped connecting rod is slidably connected in the support plate, the outer side of the T-shaped connecting rod is fixedly connected to a support spring, one end of the support spring is fixedly connected to the clamping plate, and the other end is fixedly connected to the support plate.

6. A gypsum board cutting method, used in the gypsum board cutting device according to any one of claims 1 to 5, characterized in that: include: S1. By pushing the two clamping plates and pulling the connecting seat upward, the gypsum board is placed on the upper end of the supporting base, the pushing of the clamping plates and the pulling of the connecting seat are released, and the clamping plates clamp the gypsum board under the elastic force of the supporting spring, and the connecting seat is pressed on the top of the gypsum board under the elastic force of the limit spring, the first transmission motor is turned on to drive the cutting knife to rotate, the second transmission motor is turned on to drive the screw rod to rotate, and the cutting knife follows the movement of the connecting seat to cut the gypsum board; S2. Turn on the fan so that the dust is sucked into the cavity by the two telescopic hoses. The connecting pipe guides the dust to the inside of the filter box. The air will carry the dust into the water source stored in the filter box for filtration. Turn on the connecting motor to drive the connecting rod to rotate. The air bubbles carrying dust are destroyed by the rotation of the fan net, so that the water source and the dust are fully in contact. S3. The dust is filtered in the water source of the filter box, and the excess air is discharged into the external environment through the exhaust hole. When the cutting is completed, pull up the connecting seat to remove the cut gypsum board from the supporting base, and remove the bottom cover by loosening the screw to collect the water source with filtered dust.

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