Waste gas treatment device of laser cutting machine

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a laser cutting machine waste gas treatment device which comprises a treatment box, a waste gas inlet switch and a waste gas outlet pipe, and the waste gas inlet switch and the waste gas outlet pipe are fixedly connected to the two ends of the treatment box correspondingly and communicate with the treatment box. The bottom of the treatment box is fixedly connected with a replacement box communicating with the treatment box, a replacement round block is arranged between the treatment box and the interior of the replacement box, the middle of the replacement round block is rotationally connected with a rotating shaft through a bearing, the two ends of the rotating shaft extend out of the two ends of the replacement box, and four filtering vent grooves are annularly formed in the surface of the replacement round block at equal intervals. According to the waste gas treatment device for the laser cutting machine, the filtering structure can be automatically replaced, and meanwhile, the laser cutting machine does not need to be closed when the filtering structure is replaced, so that the waste gas treatment efficiency and quality are effectively guaranteed, and meanwhile, the continuous and effective use of the laser cutting machine is also effectively guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and specifically relates to a waste gas treatment device for a laser cutting machine. Background Art

[0002] Laser cutting uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature and evaporates to form holes. As the beam moves across the material, the holes continuously form a very narrow (such as about 0.1mm) slit, thereby completing the cutting of the material. Laser cutting has the advantages of high precision, fast cutting speed and a wide range of applicable materials. It is widely used in manufacturing, automobiles, aerospace, art design and other fields. Its heat-affected zone is small, which reduces the risk of material deformation. Although laser cutting equipment is relatively expensive, its high efficiency and flexibility make it occupy an important position in modern industry.

[0003] Waste gas is generated during the laser cutting process, which not only pollutes the processing environment and the atmospheric environment, but is also detrimental to the health of the workers. In order to solve this problem, the existing laser cutting usually sets a waste gas treatment device in the laser cutting machine, and the waste gas enters the pipeline through the waste gas treatment device, and then the dust particles and gas in the waste gas are filtered and treated through the filtering structure; however, the waste gas treatment equipment needs to replace the filtering structure regularly during long-term use, and replacing the filtering structure requires stopping the filtering of the waste gas and shutting down the laser cutting machine at the same time. This operation easily causes waste gas leakage and is not conducive to the continuous use of the laser cutting machine; therefore, improvements are needed to address the above problems. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser cutting machine exhaust gas treatment device, comprising a treatment box, an exhaust gas intake switch and an exhaust gas outlet pipe, the exhaust gas intake switch and the exhaust gas outlet pipe are respectively fixedly connected to the two ends of the treatment box and communicated with the treatment box, the bottom of the treatment box is fixedly connected with a changing box communicated with it, a changing round block is arranged between the treatment box and the inside of the changing box, both ends of the changing round block are provided with circular grooves, the insides of the two circular grooves are provided with gear rings, four adjusting gears are rotatably installed on both sides of the inside of the changing box at equal distances, the adjusting gears are located in the circular grooves and meshed with the gear rings, an adjusting motor connected to the axis of one of the adjusting gears is installed on the other side of the changing box, the middle part of the changing round block is rotatably connected with a rotating shaft through a bearing, the two ends of the rotating shaft extend to the outside of the two ends of the changing box, and four filtering ventilation grooves are equidistantly arranged on the surface of the changing round block;

[0005] Both ends of the processing box are equipped with docking air-guiding telescopic mechanisms, which are located between the exhaust gas inlet switch, the exhaust gas outlet pipe and the filter ventilation slot. Both sides of the bottom of the processing box are equipped with transmission mechanisms connected to the docking air-guiding telescopic mechanisms. Both transmission mechanisms are connected to the rotating shaft. A filling pipe is fixedly installed on one side of the replacement box, and a storage box connected to the filling pipe is fixedly installed on the top of the filling pipe. A filter component is stacked between the filling pipe and the storage box. The shape of the filter component matches the shape of the filter ventilation slot. The other side of the replacement box A collecting box is fixedly installed, and a changing inlet and a changing outlet are respectively provided on both sides of the changing box, which are aligned with the filling pipe and the collecting box. The changing inlet and the changing outlet are aligned and matched with the filtering ventilation groove, and an automatic changing mechanism is installed at the end of the filling pipe away from the changing inlet, and a rotating limiting mechanism connected to the rotating shaft is installed on one side of the changing box. A double-output shaft motor is installed on one side of the surface of the filling pipe, and one output end of the double-output shaft motor is drivingly connected to the rotating limiting mechanism, and the other output end of the double-output shaft motor is drivingly connected to the automatic changing mechanism and the rotating shaft.

[0006] Preferably, the two docking air-guiding telescopic mechanisms each include a telescopic bellows fixedly connected to the inner end of the processing box, the two telescopic bellows are respectively connected to the exhaust gas inlet switch and the exhaust gas outlet pipe, the opposite ends of the two telescopic bellows are fixedly installed with plugs, one side of the two plugs is fixedly installed with sliding blocks, the middle of the two sliding blocks are movably connected with two sliding rods, the sliding rods are fixedly connected to the inner wall of the processing box, and the middle of one side of the two sliding blocks is fixedly installed with a toothed plate, so that effective telescopic adjustment can be performed.

[0007] Preferably, the two transmission mechanisms each include a rotating rod rotatably connected to the processing box, the two rotating rods located at the top inside the processing box are fixedly installed with gears, the two gears are respectively meshed with two tooth plates, and the two rotating rods located at the bottom of the lower part of the processing box are fixedly installed with bevel gears, so that effective adjustment can be performed.

[0008] Preferably, one end and one side of the rotating shaft are symmetrically fixedly connected with a first conical disc and a second conical disc, the bevel gear is located between the first conical disc and the second conical disc, the inclined surface of the first conical disc is provided with a first arc-shaped transmission tooth matching the bevel gear, and the inclined surface of the second conical disc is provided with a second arc-shaped transmission tooth matching the bevel gear, and the first arc-shaped transmission teeth and the second arc-shaped transmission teeth are staggered to effectively adjust the rotation of the bevel gear, thereby effectively performing transmission.

[0009] Preferably, the rotation limiting mechanism includes a circle block fixedly mounted on the surface of the rotating shaft, and the circumferential surface of the circle block is annularly fixed with limiting slots at equal distances, and a limiting pin is movably inserted inside one of the limiting slots, and a connecting plate is fixedly mounted on one end of the limiting pin, and an inner square tube is fixedly mounted on one side of the changing box, and a square movable rod is fixedly mounted on the upper part of one side of the connecting plate, and the square movable rod is movably inserted inside the inner square tube, and a pressure plate is fixedly mounted on one end of the square movable rod, and a compression spring is fixedly connected between the inner square tube and the pressure plate, and the compression spring is sleeved on the surface of the square movable rod, thereby effectively limiting and fixing the rotating shaft, so that the rotating shaft will not rotate and adjust following the rotation of the changing circle block.

[0010] Preferably, a first disc aligned with the pressure plate is fixedly mounted on one output end of the dual-shaft motor, and a toggle block matching the pressure plate is fixedly mounted on the circumferential surface of the first disc, thereby being able to effectively adjust the rotation limiting mechanism to separate it from the rotating shaft.

[0011] Preferably, a first gear is fixedly mounted on the other end of the rotating shaft, a second disc is fixedly mounted on the other output end of the dual-output shaft motor, a first arc-shaped tooth block matching the first gear is fixedly mounted on the circumferential surface of the second disc, a third disc is fixedly mounted on one end of the second disc, and a second arc-shaped tooth block is fixedly mounted on the circumferential surface of the third disc, so that transmission adjustment can be performed in sequence.

[0012] Preferably, the automatic changing mechanism includes a square pushing block located inside the filling pipe, one end of the square pushing block is provided with a circular long groove, one end of the filling pipe is rotatably connected to a rotating column located inside the circular long groove, the end of the rotating column located outside the filling pipe is fixedly installed with a second gear that matches and aligns with the second arc-shaped tooth block, an inclined ring groove is provided on the surface of the rotating column located inside the circular long groove, and a driving pin located inside the inclined ring groove is fixedly installed at one end inside the circular long groove, so that a new filter component inside the filling pipe can be effectively loaded into the filter ventilation groove, and at the same time, the filter component that needs to be replaced inside the filter ventilation groove can be pushed out, and an inclined surface structure is provided on the top of the rotating column near one end of the filter component, and the stacked filter components can be pushed and separated through the inclined surface.

[0013] Preferably, the filter component is composed of an activated carbon filter layer and a HEPA filter layer, and the HEPA filter layer and the activated carbon filter layer are respectively close to the exhaust gas inlet switch and the exhaust gas outlet pipe; the tops of the storage box and the collection box are both equipped with covers via hinges.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) During operation, by providing a treatment box, an exhaust gas inlet switch, an exhaust gas outlet pipe, a changing box, a changing round block, a rotating shaft, a filter ventilation groove, a filling pipe, a storage box, a collecting box, a filter component, a changing inlet, a changing outlet, a docking air guide telescopic mechanism, a transmission mechanism, an automatic changing mechanism and a rotating limit mechanism, the exhaust gas treatment device of the laser cutting machine can automatically replace the filter structure. At the same time, there is no need to shut down the laser cutting machine when replacing the filter structure, and the replacement speed is fast. The replacement and use are stable and reliable, and no exhaust gas leakage will be caused, thereby effectively ensuring the efficiency and quality of the exhaust gas treatment. At the same time, it also effectively guarantees the continuous and effective use of the laser cutting machine. In addition, the exhaust gas treatment device of the laser cutting machine has a simple structural design, is easy to use, and is stable and reliable to adjust. Its performance can meet the use requirements of laser cutting exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a schematic diagram of the front view of the exhaust gas treatment device for a laser cutting machine of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic cross-sectional structure diagram of;

[0020] Figure 3 For the present invention Figure 2 The local structure of Figure 1 ;

[0021] Figure 4 For the present invention Figure 2 The local structure of Figure 2 ;

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of a partial cross-sectional structure;

[0023] Figure 6 It is a partial top view structural schematic diagram of the exhaust gas treatment device for a laser cutting machine of the present invention;

[0024] Figure 7 It is a schematic diagram of the side section structure of the rotation limiting mechanism of the present invention;

[0025] In the figure: 1, treatment box; 2, exhaust gas inlet switch; 3, exhaust gas outlet pipe; 4, change box; 5, change round block; 6, rotating shaft; 7, filter ventilation slot; 8, filling pipe; 9, storage box; 901, collection box; 10, filter component; 11, change inlet; 12, change outlet; 13, double-axis motor; 14, telescopic bellows; 15, insert tube; 16, sliding block; 17, sliding rod; 18, tooth plate; 19, rotating rod; 20, gear; 21, bevel gear; 22, first conical disc; 23, second conical disc; 24, first arc Transmission tooth; 25, second arc-shaped transmission tooth; 26, circle block; 27, limit slot; 28, limit pin; 29, connecting plate; 30, inner square tube; 31, square movable rod; 32, pressure plate; 33, compression spring; 34, first disc; 35, toggle block; 36, first gear; 37, second disc; 38, first arc-shaped tooth block; 39, third disc; 40, second arc-shaped tooth block; 41, square push block; 42, circular long groove; 43, rotating column; 44, second gear; 45, inclined circle groove; 46, toggle pin; 47, inclined surface structure. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Embodiment 1, by Figures 1 to 7 The present invention comprises a treatment box 1, an exhaust gas intake switch 2 and an exhaust gas outlet pipe 3, the exhaust gas intake switch 2 and the exhaust gas outlet pipe 3 are respectively fixedly connected to the two ends of the treatment box 1 and communicated with the treatment box 1, the bottom of the treatment box 1 is fixedly connected with a changing box 4 communicated with it, a changing round block 5 is arranged between the interiors of the treatment box 1 and the changing box 4, both ends of the changing round block 5 are provided with circular grooves, the interiors of the two circular grooves are provided with gear rings, four adjusting gears are equidistantly rotatably arranged on both sides of the interior of the changing box 4, the adjusting gears are located inside the circular grooves and meshed with the gear rings, an adjusting motor connected to the axis of one of the adjusting gears is arranged on the other side of the changing box 4, the middle part of the changing round block 5 is rotatably connected with a rotating shaft 6 through a bearing, the two ends of the rotating shaft 6 extend to the outside of the two ends of the changing box 4, and four filtering ventilation grooves 7 are equidistantly arranged on the surface of the changing round block 5.

[0028] Both ends of the processing box 1 are equipped with docking air-guiding telescopic mechanisms, which are located between the exhaust gas inlet switch 2, the exhaust gas outlet pipe 3 and the filter ventilation groove 7. Transmission mechanisms connected to the docking air-guiding telescopic mechanisms are installed on both sides of the bottom of the processing box 1, and the two transmission mechanisms are both connected to the rotating shaft 6 in transmission. A filling pipe 8 is fixedly installed on one side of the changing box 4, and a storage box 9 connected to the filling pipe 8 is fixedly installed on the top of the filling pipe 8. A filter component 10 is stacked between the filling pipe 8 and the storage box 9. The shape of the filter component 10 matches the shape of the filter ventilation groove 7. A collecting box 901 is fixedly installed on the other side of the changing box 4. A changing inlet 11 and a changing outlet 12 aligned with the filling pipe 8 and the collecting box 901 are respectively provided on both sides of the changing box 4. The changing inlet 11 and the changing outlet 12 are aligned and matched with the filter ventilation groove 7.

[0029] An automatic changing mechanism is installed at one end of the filling pipe 8 away from the changing inlet 11, a rotating limiting mechanism connected to the rotating shaft 6 is installed on one side of the changing box 4, and a double-output shaft motor 13 is installed on one side of the surface of the filling pipe 8, one output end of the double-output shaft motor 13 is transmission connected to the rotating limiting mechanism, and the other output end of the double-output shaft motor 13 is transmission connected to the automatic changing mechanism and the rotating shaft 6.

[0030] The filter component 10 is composed of an activated carbon filter layer and a HEPA filter layer, and the HEPA filter layer and the activated carbon filter layer are respectively close to the exhaust gas inlet switch 2 and the exhaust gas outlet pipe 3, so that dust particles and harmful gases can be effectively filtered; the tops of the storage box 9 and the collection box 901 are both hinged with covers, so that the filter component 10 can be effectively filled and the replaced filter component 10 can be cleaned.

[0031] The laser cutting machine exhaust gas treatment device can automatically replace the filter structure. At the same time, there is no need to shut down the laser cutting machine when replacing the filter structure. The replacement speed is fast, and the replacement and use are stable and reliable, and will not cause exhaust gas leakage, thereby effectively ensuring the efficiency and quality of exhaust gas treatment, and also effectively ensuring the continuous and effective use of the laser cutting machine.

[0032] In addition, the exhaust gas treatment device for the laser cutting machine has a simple structural design, is easy to use, and has stable and reliable adjustment. Its performance can meet the use requirements of laser cutting exhaust gas treatment.

[0033] Embodiment 2, on the basis of embodiment 1, two docking air-guiding telescopic mechanisms each include a telescopic bellows 14 fixedly connected to the inner end of the treatment box 1, the two telescopic bellows 14 are respectively connected to the exhaust gas inlet switch 2 and the exhaust gas outlet pipe 3, the opposite ends of the two telescopic bellows 14 are fixedly installed with a plug 15, one side of the two plugs 15 is fixedly installed with a sliding block 16, the middle of the two sliding blocks 16 are movably connected with two sliding rods 17, the sliding rods 17 are fixedly connected to the inner wall of the treatment box 1, and the middle of one side of the two sliding blocks 16 is fixedly installed with a tooth plate 18, so that the telescopic adjustment can be effectively performed.

[0034] The two transmission mechanisms both include a rotating rod 19 rotatably connected to the processing box 1. The two rotating rods 19 are located at the top inside the processing box 1 and are fixedly installed with gears 20. The two gears 20 are respectively meshed with the two toothed plates 18. The two rotating rods 19 are located at the bottom of the lower part of the processing box 1 and are fixedly installed with bevel gears 21, so that effective adjustment can be performed. One end and one side of the rotating shaft 6 are symmetrically fixedly connected with a first conical disc 22 and a second conical disc 23. The bevel gear 21 is located between the first conical disc 22 and the second conical disc 23. The inclined surface of the first conical disc 22 is provided with a first arc-shaped transmission tooth 24 matching the bevel gear 21, and the inclined surface of the second conical disc 23 is provided with a second arc-shaped transmission tooth 25 matching the bevel gear 21. The first arc-shaped transmission tooth 24 and the second arc-shaped transmission tooth 25 are staggered to effectively rotate and adjust the bevel gear 21, thereby effectively performing transmission.

[0035] When the filter component 10 inside the filter ventilation groove 7 needs to be replaced, the cannula 15 needs to be withdrawn from the filter ventilation groove 7 first; and the first conical disc 22 and the second conical disc 23 can be effectively rotated by the rotation of the rotating shaft 6, and the rotation of the two first conical discs 22 will first transmit the rotation of the bevel gear 21 through the first arc-shaped transmission tooth 24, and the rotation of the bevel gear 21 will drive the rotation rod 19 and the gear 20 to rotate, and the rotation of the gear 20 will transmit the tooth plate 18 and drive the sliding block 16 to slide on the sliding rod 17, and the movement of the sliding block 16 will drive the cannula 15 to move, so that the two cannula 15 move back to back and withdraw from the two ends of the filter ventilation groove 7, and the movement of the cannula 15 will compress the telescopic bellows 14, and then the first arc-shaped transmission tooth 24 will separate from the bevel gear 21 and the rotating shaft 6 continues to rotate;

[0036] When the cannula 15 is withdrawn from the filter ventilation slot 7, the adjusting motor is started to drive the adjusting gear connected thereto to rotate, and the rotation of the adjusting gear can drive the changing round block 5 to rotate through other rotatable adjusting gears, and finally the changing round block 5 is rotated forty-five degrees to adjust the positions of the four filter ventilation slots 7, so that the filter component 10 to be replaced follows the filter ventilation slot 7 and moves between the changing inlet 11 and the changing outlet 12, and at the same time, the new filter component 10 located in the other filter ventilation slots 7 will move between the two cannulas 15 and the adjusting motor will be stopped;

[0037] Then, as the rotating shaft 6 rotates, the second conical disk 23 will drive the bevel gear 21 in the reverse direction through the second arc-shaped transmission tooth 25. The reverse rotation of the bevel gear 21 will adjust the relative movement of the two insert tubes 15, so that the two insert tubes 15 are inserted into the interior of the two ends of the filter ventilation groove 7 aligned with them, so that the new filter component 10 can be used; the exhaust gas enters the interior of the filter ventilation groove 7 through the exhaust gas inlet switch 2 and the insert tube 15, and is filtered by the filter component 10, and then the filtered gas is discharged through the insert tube 15 and the exhaust gas outlet pipe 3; the exhaust gas treatment device can continuously and effectively treat the exhaust gas.

[0038] Embodiment 3, on the basis of embodiment 2, the rotation limiting mechanism includes a circle block 26 fixedly mounted on the surface of the rotating shaft 6, the circumferential surface of the circle block 26 is annularly fixedly mounted with limiting slots 27 at equal intervals, a limiting pin 28 is movably inserted inside one of the limiting slots 27, a connecting plate 29 is fixedly mounted on one end of the limiting pin 28, an inner square tube 30 is fixedly mounted on one side of the changing box 4, a square movable rod 31 is fixedly mounted on the upper part of one side of the connecting plate 29, the square movable rod 31 is movably inserted inside the inner square tube 30, a pressure plate 32 is fixedly mounted on one end of the square movable rod 31, a compression spring 33 is fixedly connected between the inner square tube 30 and the pressure plate 32, and the compression spring 33 is sleeved on the surface of the square movable rod 31, thereby being able to effectively limit and fix the rotating shaft 6, so that the rotating shaft 6 will not rotate and adjust following the rotation of the changing circle block 5.

[0039] A first disc 34 aligned with the pressure plate 32 is fixedly mounted on one output end of the double-output shaft motor 13, and a toggle block 35 matching the pressure plate 32 is fixedly mounted on the circumferential surface of the first disc 34, so that the rotation limiting mechanism can be effectively adjusted to separate it from the rotating shaft 6, and a first gear 36 is fixedly mounted on the other end of the rotating shaft 6, and a second disc 37 is fixedly mounted on the other output end of the double-output shaft motor 13, and a first arc-shaped tooth block 38 matching the first gear 36 is fixedly mounted on the circumferential surface of the second disc 37, and a third disc 39 is fixedly mounted on one end of the second disc 37, and a second arc-shaped tooth block 40 is fixedly mounted on the circumferential surface of the third disc 39, and the toggle block 35, the first arc-shaped tooth block 38 and the second arc-shaped tooth block 40 are staggered, so that transmission adjustment can be performed in sequence;

[0040] By starting the double-output shaft motor 13, the first disc 34, the second disc 37 and the third disc 39 are rotated. The rotation of the first disc 34 will first drive the toggle block 35 to squeeze and move the pressure plate 32. The movement of the pressure plate 32 will drive the square movable rod 31, the connecting plate 29 and the limit latch 28 to move and compress the compression spring 33, so that the limit latch 28 is moved out from the inside of one of the limit slots 27. At the same time, the second disc 37 will drive the first arc-shaped tooth block 38 to transmit the first gear 36 and drive the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 will drive the ring block 26 and the limit slot 27 to rotate, so that the four limit slots 27 rotate forty-five degrees to exchange positions. After that, the toggle block 35 will separate from the pressure plate 32. At the same time, another limit slot 27 will be aligned with the limit latch 28 and the elastic restoring force of the compression spring 33 will make the limit latch 28 inserted into the inside of the limit slot 27 to limit and fix the rotating shaft 6.

[0041] Afterwards, the shifting block 35 is separated from the pressure plate 32 and the first arc-shaped tooth block 38 is separated from the first gear 36 , while the third disk 39 continues to drive the second arc-shaped tooth block 40 to rotate.

[0042] The automatic replacement mechanism includes a square push block 41 located inside the filling pipe 8, one end of the square push block 41 is provided with a circular long groove 42, one end of the filling pipe 8 is rotatably connected to a rotating column 43 located inside the circular long groove 42, and the end of the rotating column 43 located outside the filling pipe 8 is fixedly installed with a second gear 44 that matches and aligns with the second arc-shaped tooth block 40, and the surface of the rotating column 43 located inside the circular long groove 42 is provided with an inclined circular groove 45, and one end inside the circular long groove 42 is fixedly installed with a push pin 46 located inside the inclined circular groove 45, so that the new filter component 10 inside the filling pipe 8 can be effectively loaded into the filter ventilation groove 7, and at the same time, the filter component 10 that needs to be replaced inside the filter ventilation groove 7 can be pushed out; the rotating column 43 is provided with an inclined surface structure 47 at the top near one end of the filter component 10, and the stacked filter components 10 can be pushed and separated by the inclined surface 47.

[0043] When the toggle block 35 is separated from the pressure plate 32 and the first arc-shaped tooth block 38 is separated from the first gear 36, the third disc 39 will continue to drive the second arc-shaped tooth block 40 to rotate, and then the rotation of the second arc-shaped tooth block 40 will transmit the second gear 44 360 degrees to make the rotating column 43 rotate 360 ​​degrees, and the rotation of the rotating column 43 will toggle the toggle pin 46 through the inclined ring groove 45 to drive the square push block 41 to move, and the movement of the square push block 41 will push the new filter component 10 inside the filling pipe 8 to move, so that the new filter component 10 moves to the inside of the filter ventilation groove 7 through the replacement inlet 11, and at the same time, the moving new filter component 10 will push the filter component 10 that needs to be replaced inside the filter ventilation groove 7 to move, so that the filter component 10 that needs to be replaced is collected into the inside of the collection box 901 through the replacement outlet 12; then the rotating column 43 will move back to its original position and the filter component 10 inside the storage box 9 will automatically fall into the inside of the filling pipe 8.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] 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 waste gas treatment device for a laser cutting machine, comprising a treatment box (1), a waste gas inlet switch (2) and a waste gas outlet pipe (3), characterized in that: The exhaust gas inlet switch (2) and the exhaust gas outlet pipe (3) are respectively fixedly connected to the two ends of the treatment box (1) and are connected to the treatment box (1). The bottom of the treatment box (1) is fixedly connected to a changing box (4) connected thereto. A changing round block (5) is arranged between the inside of the treatment box (1) and the changing box (4). Circular grooves are provided at both ends of the changing round block (5). Gear rings are installed inside the two circular grooves. Four adjusting gears are equidistantly and rotatably installed on both sides of the inside of the changing box (4). The adjusting gears are located inside the circular grooves and mesh with the gear rings. An adjusting motor connected to the axis of one of the adjusting gears is installed on the other side of the changing box (4). A rotating shaft (6) is rotatably connected to the middle part of the changing round block (5) through a bearing. The two ends of the rotating shaft (6) extend outside the two ends of the changing box (4). Four filtering ventilation grooves (7) are equidistantly and rotatably opened on the surface of the changing round block (5). Both ends of the processing box (1) are equipped with a docking air-guiding telescopic mechanism, which is located between the exhaust gas inlet switch (2), the exhaust gas outlet pipe (3) and the filter ventilation groove (7). Both sides of the bottom of the processing box (1) are equipped with a transmission mechanism connected to the docking air-guiding telescopic mechanism. Both transmission mechanisms are connected to the rotating shaft (6). A filling pipe (8) is fixedly installed on one side of the replacement box (4). A storage box (9) connected to the filling pipe (8) is fixedly installed on the top of the filling pipe (8). A filter component (10) is stacked between the filling pipe (8) and the storage box (9), and the shape of the filter component (10) matches the shape of the filter ventilation groove (7). A collection box (901) is fixedly installed on the other side of the replacement box (4). A replacement inlet (11) and a replacement outlet (12) aligned with the filling pipe (8) and the collection box (901) are respectively opened on both sides of the replacement box (4). The replacement inlet (11) and the replacement outlet (12) are aligned and matched with the filter ventilation groove (7); An automatic changing mechanism is installed at one end of the filling pipe (8) away from the changing inlet (11), a rotating limit mechanism connected to the rotating shaft (6) is installed on one side of the changing box (4), and a double-output shaft motor (13) is installed on one side of the surface of the filling pipe (8), one output end of the double-output shaft motor (13) is drivingly connected to the rotating limit mechanism, and the other output end of the double-output shaft motor (13) is drivingly connected to the automatic changing mechanism and the rotating shaft (6).

2. The laser cutting machine exhaust gas treatment device according to claim 1, characterized in that: The two docking air-guiding telescopic mechanisms each comprise a telescopic bellows (14) fixedly connected to the inner end of the processing box (1), the two telescopic bellows (14) are respectively connected to the exhaust gas inlet switch (2) and the exhaust gas outlet pipe (3), the opposite ends of the two telescopic bellows (14) are fixedly installed with a plug (15), one side of the two plugs (15) is fixedly installed with a sliding block (16), the middle of the two sliding blocks (16) are movably connected with two sliding rods (17), the sliding rods (17) are fixedly connected to the inner wall of the processing box (1), and the middle of one side of the two sliding blocks (16) is fixedly installed with a toothed plate (18).

3. The laser cutting machine exhaust gas treatment device according to claim 2, characterized in that: The two transmission mechanisms each comprise a rotating rod (19) rotatably connected to the processing box (1); the two rotating rods (19) are located at the top of the processing box (1) and are fixedly mounted with a gear (20); the two gears (20) are respectively meshed and connected with two toothed plates (18); and the two rotating rods (19) are located at the bottom of the lower part of the processing box (1) and are fixedly mounted with a bevel gear (21).

4. The laser cutting machine exhaust gas treatment device according to claim 3, characterized in that: One end and one side of the rotating shaft (6) are symmetrically fixedly connected with a first conical disc (22) and a second conical disc (23); the bevel gear (21) is located between the first conical disc (22) and the second conical disc (23); the inclined surface of the first conical disc (22) is provided with a first arc-shaped transmission tooth (24) matching the bevel gear (21); the inclined surface of the second conical disc (23) is provided with a second arc-shaped transmission tooth (25) matching the bevel gear (21); the first arc-shaped transmission tooth (24) and the second arc-shaped transmission tooth (25) are staggered so as to effectively adjust the rotation of the bevel gear (21).

5. The laser cutting machine exhaust gas treatment device according to claim 1, characterized in that: The rotation limiting mechanism comprises a ring block (26) fixedly mounted on the surface of the rotating shaft (6); a limiting slot (27) is fixedly mounted at equal intervals on the circumferential surface of the ring block (26); a limiting pin (28) is movably inserted into the interior of one of the limiting slots (27); a connecting plate (29) is fixedly mounted on one end of the limiting pin (28); an inner square tube (30) is fixedly mounted on one side of the changing box (4); a square movable rod (31) is fixedly mounted on the upper part of one side of the connecting plate (29); the square movable rod (31) is movably inserted into the interior of the inner square tube (30); a pressure plate (32) is fixedly mounted on one end of the square movable rod (31); a compression spring (33) is fixedly connected between the inner square tube (30) and the pressure plate (32); and the compression spring (33) is sleeved on the surface of the square movable rod (31).

6. The laser cutting machine exhaust gas treatment device according to claim 5, characterized in that: A first disc (34) aligned with the pressure plate (32) is fixedly mounted on one output end of the double-output shaft motor (13), and a toggle block (35) matching the pressure plate (32) is fixedly mounted on the circumferential surface of the first disc (34).

7. The laser cutting machine exhaust gas treatment device according to claim 6, characterized in that: A first gear (36) is fixedly mounted on the other end of the rotating shaft (6); a second disc (37) is fixedly mounted on the other output end of the double-output shaft motor (13); a first arc-shaped tooth block (38) matching the first gear (36) is fixedly mounted on the circumferential surface of the second disc (37); a third disc (39) is fixedly mounted on one end of the second disc (37); and a second arc-shaped tooth block (40) is fixedly mounted on the circumferential surface of the third disc (39).

8. The laser cutting machine exhaust gas treatment device according to claim 7, characterized in that: The automatic loading mechanism comprises a square push block (41) located inside the filling pipe (8), one end of the square push block (41) is provided with a circular long groove (42), one end of the filling pipe (8) is rotatably connected to a rotating column (43) located inside the circular long groove (42), an end of the rotating column (43) located outside the filling pipe (8) is fixedly mounted with a second gear (44) matched and aligned with the second arc-shaped gear block (40), a surface of the rotating column (43) located inside the circular long groove (42) is provided with an inclined circular groove (45), and one end inside the circular long groove (42) is fixedly mounted with a toggle pin (46) located inside the inclined circular groove (45).

9. The laser cutting machine exhaust gas treatment device according to claim 8, characterized in that: A slope structure (47) is provided at the top of one end of the rotating column (43) close to the filtering component (10).

10. The laser cutting machine exhaust gas treatment device according to claim 1, characterized in that: The filter component (10) is composed of an activated carbon filter layer and a HEPA filter layer, the HEPA filter layer and the activated carbon filter layer are respectively close to the exhaust gas inlet switch (2) and the exhaust gas outlet pipe (3), and the tops of the storage box (9) and the collection box (901) are both equipped with cover plates via hinges.

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