Efficient environment-friendly metal plate laser cutting system

Abstract

The invention discloses an efficient and environment-friendly metal plate laser cutting system, and relates to the technical field of metal plate laser cutting, the efficient and environment-friendly metal plate laser cutting system comprises a main body mechanism, the main body mechanism comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a multi-directional moving mechanism and a positioning mechanism, and the output end of the multi-directional moving mechanism is fixedly connected with a laser cutting mechanism; according to the efficient and environment-friendly metal plate laser cutting system, by arranging the gas collecting unit, ozone generated in the process that a metal plate on the positioning mechanism is cut by the laser cutting mechanism, mist containing metal oxide particles and other impurity mist can be collected, and therefore follow-up purification of the impurity mist is facilitated; by arranging the filtering unit, the ozone collected by the gas collecting unit and impurity fog such as fog containing metal oxide particles can be filtered, and therefore the situation that the environment is polluted by the impurity fog such as the ozone and the fog containing the metal oxide particles generated in the laser cutting process of the metal plate is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal laser cutting, and in particular to a high-efficiency and environmentally friendly sheet metal laser cutting system. Background Art

[0002] Sheet metal laser cutting is a processing technology that uses a high-energy-density laser beam to cut sheet metal materials. Sheet metal materials usually refer to metal sheets with a thickness of less than 6 mm, such as steel plates, aluminum plates or copper plates. The energy generated by the focused laser beam can instantly melt or vaporize the sheet metal material. The movement trajectory of the laser cutting head is controlled by the CNC system, thereby cutting the sheet metal material into the required shape and size.

[0003] When used, existing sheet metal laser cutting devices can usually only cut sheet metal quickly and produce impurity mists such as ozone and mist containing metal oxide particles. Such impurity mists cannot be cleaned up in time, which can easily cause environmental pollution.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing high-efficiency and environmentally friendly sheet metal laser cutting systems on the market, and even if they can be solved, they need to be solved with the cooperation of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a high-efficiency and environmentally friendly sheet metal laser cutting system. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency and environmentally friendly sheet metal laser cutting system to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an efficient and environmentally friendly sheet metal laser cutting system, comprising a main body mechanism, the main body mechanism comprising a bottom plate, the upper surface of the bottom plate is respectively fixedly connected with a multi-directional moving mechanism and a positioning mechanism, the output end of the multi-directional moving mechanism is fixedly connected with a laser cutting mechanism, and an exhaust gas purification mechanism is arranged on the right side of the bottom plate;

[0007] The exhaust gas purification mechanism includes an air collecting unit, which is arranged on the right side of the positioning mechanism and is used to collect impurity mist such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism by the laser cutting mechanism;

[0008] The exhaust gas purification mechanism further includes a filter unit, which is arranged on the right side of the gas collection unit and is used to filter impurity mists such as ozone and mist containing metal oxide particles collected by the gas collection unit;

[0009] The filter unit is provided with a cleaning liquid circulation mechanism inside, and the cleaning liquid circulation mechanism is used in conjunction with the exhaust gas purification mechanism, and the cleaning liquid circulation mechanism is used to filter and circulate the cleaning liquid in the filter unit.

[0010] Preferably, the air collecting unit includes an air collecting hood, which is located on the right side of the positioning mechanism, the right side surface of the air collecting hood is fixedly connected to a four-way pipe, the inner wall of the four-way pipe is fixedly connected to four exhaust fans, a negative pressure pump is arranged on the right side of the four-way pipe, the input end of the negative pressure pump and the outer surface of the four-way pipe are jointly fixedly connected to an air intake pipe, the output end of the negative pressure pump is fixedly connected to an air supply pipe, and the end of the air supply pipe away from the negative pressure pump is fixedly connected to a multi-porous nozzle.

[0011] Preferably, the filter unit includes a purification box, which is located on the right side of the negative pressure pump, the inner wall of the purification box is fixedly connected to the outer surface of the air supply pipe, the outer surface of the negative pressure pump is fixedly connected to the left side of the purification box, the front of the purification box is fixedly connected to a button controller, the inner wall of one side of the purification box is fixedly connected to a water level gauge, the water level gauge, multi-directional moving mechanism, positioning mechanism and laser cutting mechanism are all electrically connected to the button controller through wires, the upper surface of the purification box is fixedly connected to a liquid inlet pipe and an air outlet pipe, respectively, the top of the air outlet pipe is fixedly connected to an air filter shell, an activated carbon composite filter element is clamped inside the air filter shell, the inner wall of the air filter shell is threadedly connected to a limiting shell, the inner wall of the limiting shell is fixedly connected to a filter cloth bag, and the inner wall of the filter cloth bag is in contact with the outer surface of the activated carbon composite filter element.

[0012] Preferably, an L-shaped connecting plate is fixedly connected to the left side surface of the purification box, and the upper surface of the L-shaped connecting plate is fixedly connected to the outer surface of the air collecting hood.

[0013] Preferably, a dustproof sealing plug is clamped inside the liquid inlet pipe, the upper surface of the dustproof sealing plug is fixedly connected to a limiting disk, and the bottom surface of the limiting disk is in contact with the top end of the liquid inlet pipe.

[0014] Preferably, a first anti-slip sleeve is fixedly connected to the outer surface of the limiting plate, and a plurality of identical first anti-slip protrusions are fixedly connected to the outer surface of the first anti-slip sleeve.

[0015] Preferably, a second anti-slip sleeve is fixedly connected to the outer surface of the limiting shell, and a plurality of identical second anti-slip protrusions are fixedly connected to the outer surface of the second anti-slip sleeve.

[0016] Preferably, the impurity removal liquid circulation mechanism includes a water pump, which is electrically connected to a button controller through a wire, an input end of the water pump is fixedly connected to a liquid extraction pipe, an output end of the water pump is fixedly connected to a liquid delivery pipe, an outer surface of the liquid delivery pipe is fixedly connected to an inner wall of a purification box, a box frame is fixedly connected to the inner wall of the purification box, a supporting shell is slidably connected to the inside of the box frame, a composite filter plate is fixedly connected to the inner wall of the supporting shell, a porous liquid spray head is arranged above the supporting shell, and an upper surface of the porous liquid spray head is fixedly connected to an end of the liquid delivery pipe away from the water pump.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a gas collecting unit, which can collect impurity mists such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism by the laser cutting mechanism, thereby facilitating the subsequent purification of the impurity mists.

[0019] 2. The present invention can filter the ozone and impurity mist such as mist containing metal oxide particles collected by the gas collection unit by setting a filtering unit, thereby preventing the ozone and impurity mist such as mist containing metal oxide particles generated during the laser cutting process of the sheet metal from polluting the environment.

[0020] 3. The present invention provides a de-impurity liquid circulation mechanism, which can cooperate with the gas collection unit and the filter unit to circulate and filter the de-impurity liquid in the filter unit, thereby ensuring the continuous filtering effect of the filter unit as much as possible, thereby ensuring the continuous purification of the impurity mist generated during the laser cutting process of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the bottom plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the bottom structure of the purification box of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the gas collecting hood of the present invention;

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the four-way pipe of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the purification box of the present invention;

[0027] Figure 7 It is a schematic cross-sectional structural diagram of the purification box of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the air filter housing of the present invention;

[0029] Fig. 9 It is a schematic cross-sectional structural diagram of the air filter housing of the present invention;

[0030] Fig.10 It is a schematic cross-sectional structure diagram of the limiting shell of the present invention;

[0031] Fig.11 It is a schematic cross-sectional structural diagram of the load-bearing shell of the present invention;

[0032] Fig.12 It is a schematic diagram of the bottom structure of the dustproof sealing plug of the present invention.

[0033] In the figure: 1. main body; 11. bottom plate; 12. multi-directional moving mechanism; 13. positioning mechanism; 14. laser cutting mechanism; 2. exhaust gas purification mechanism; 21. air collecting unit; 2101. air collecting hood; 2102. four-way pipe; 2103. exhaust fan; 2104. negative pressure pump; 2105. air inlet pipe; 2106. air delivery pipe; 2107. multi-hole jet nozzle; 22. filter unit; 2201. purification box; 2202. button controller; 2203. water level gauge; 2204. liquid inlet pipe; 2205. air outlet pipe; 2206. air filter shell; 2207 , limit shell; 2208, activated carbon composite filter element; 2209, filter bag; 2210, L-shaped connecting plate; 2211, second anti-skid sleeve; 2212, second anti-skid convex column; 2213, limit plate; 2214, dustproof sealing plug; 2215, first anti-skid sleeve; 2216, first anti-skid convex column; 3, impurity removal liquid circulation mechanism; 301, water pump; 302, liquid extraction pipe; 303, liquid delivery pipe; 304, porous liquid spray head; 305, box frame; 306, bearing shell; 307, composite filter plate; 308, handle support; 309, pull rod; 310, handle. DETAILED DESCRIPTION

[0034] 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.

[0035] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The present invention provides a technical solution: an efficient and environmentally friendly sheet metal laser cutting system, comprising a main body mechanism 1, the main body mechanism 1 comprises a bottom plate 11, the upper surface of the bottom plate 11 is respectively fixedly connected with a multi-directional moving mechanism 12 and a positioning mechanism 13, the output end of the multi-directional moving mechanism 12 is fixedly connected with a laser cutting mechanism 14, and an exhaust gas purification mechanism 2 is arranged on the right side of the bottom plate 11;

[0036] The exhaust gas purification mechanism 2 includes a gas collecting unit 21, which is arranged on the right side of the positioning mechanism 13. The gas collecting unit 21 is used to collect impurity mist such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism 13 by the laser cutting mechanism 14.

[0037] As a further limitation of the exhaust gas purification mechanism 2 of the present invention, the air collecting unit 21 includes an air collecting hood 2101, which is located on the right side of the positioning mechanism 13. The right side of the air collecting hood 2101 is fixedly connected to a four-way pipe 2102, and the inner wall of the four-way pipe 2102 is fixedly connected to four exhaust fans 2103. A negative pressure pump 2104 is arranged on the right side of the four-way pipe 2102. The input end of the negative pressure pump 2104 and the outer surface of the four-way pipe 2102 are fixedly connected to an air intake pipe 2105. The output end of the negative pressure pump 2104 is fixedly connected to an air supply pipe 2106, and the end of the air supply pipe 2106 away from the negative pressure pump 2104 is fixedly connected to a porous nozzle 2107. The positioning mechanism 13 can clamp the sheet metal to be cut. The fixed, multi-directional moving mechanism 12 can drive the laser cutting mechanism 14 to move up and down, left and right, and front and back, thereby facilitating the laser cutting mechanism 14 to cut the sheet metal on the positioning mechanism 13 according to different requirements. After the exhaust fan 2103 is powered on, it can extract impurity mists such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism 13 by the laser cutting mechanism 14 through the air collecting hood 2101. After the negative pressure pump 2104 is powered on, it can accelerate the impurity mist collected in the four-way pipe 2102, and make the collected impurity mist sprayed out through the porous nozzle 2107, so as to facilitate the subsequent filtering and purification of the impurity mist sprayed from the porous nozzle 2107.

[0038] The specific implementation method of this embodiment is as follows: first, the sheet metal to be cut is clamped and fixed by the positioning mechanism 13, and then the multi-directional moving mechanism 12 drives the laser cutting mechanism 14 to move up and down, left and right, and front and back, so as to facilitate the laser cutting mechanism 14 to cut the sheet metal on the positioning mechanism 13 according to different requirements. During the laser cutting of the sheet metal, the exhaust fan 2103 is energized, and then the impurity mist such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism 13 by the laser cutting mechanism 14 is extracted through the air collecting hood 2101, and the negative pressure pump 2104 is energized to accelerate the impurity mist collected in the four-way pipe 2102, and the collected impurity mist is ejected through the porous nozzle 2107, so as to facilitate the subsequent filtering and purification of the impurity mist ejected from the porous nozzle 2107.

[0039] Example 2: Please refer to Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The present invention provides a technical solution: a high-efficiency and environmentally friendly sheet metal laser cutting system. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0040] As a further limitation of the exhaust gas purification mechanism 2 of the present invention, the exhaust gas purification mechanism 2 further includes a filter unit 22, which is disposed on the right side of the gas collecting unit 21, and the filter unit 22 is used to filter the impurity mist such as ozone and mist containing metal oxide particles collected by the gas collecting unit 21;

[0041] The filter unit 22 includes a purification box 2201, which is located on the right side of the negative pressure pump 2104. The inner wall of the purification box 2201 is fixedly connected to the outer surface of the air supply pipe 2106, and the outer surface of the negative pressure pump 2104 is fixedly connected to the left side of the purification box 2201. The front of the purification box 2201 is fixedly connected with a button controller 2202, and the inner wall of one side of the purification box 2201 is fixedly connected with a water level gauge 2203. The water level gauge 2203, the multi-directional moving mechanism 12, the positioning mechanism 13 and the laser cutting mechanism 14 are all electrically connected to the button controller 2202 through wires. The upper surface of the purification box 2201 is fixedly connected with a liquid inlet pipe 2204 and an air outlet pipe 2205, and the top of the air outlet pipe 2205 is fixedly connected with an air filter shell 2206. An activated carbon composite filter element 2208 is clamped inside the air filter shell 2206, and the inner wall of the air filter shell 2206 is threadedly connected to the limit shell 2207. A filter bag 2209 is fixedly connected to the inner wall of the limit shell 2207. The inner wall of the filter bag 2209 is in contact with the outer surface of the activated carbon composite filter element 2208. A mixed solution of sodium hydroxide and sodium sulfide or other mixed liquids that can absorb ozone or metal oxide mist can be injected into the purification box 2201 from the liquid inlet pipe 2204, and the water level meter 2203 can monitor the liquid level of the mixed liquid. When the liquid level preset by the button controller 2202 is reached, the button controller 2202 will send a corresponding prompt light signal, and the button controller 2202 can use MCU, also known as a microcontroller, and can use Ardu i no series, the microcontroller is small in size, low in cost and low in power consumption, suitable for miniaturization and embedded applications, and can be programmed to control multiple components. It can be connected to the control end of each electrical component through a digital output pin, and control the power of each component through an analog output pin, etc., and specific control logic and timing can be realized by writing code. Since the bottom of the porous nozzle 2107 has multiple holes, the impurity mist can be in contact with the mixed impurity removal liquid in the purification box 2201 as much as possible when it is sprayed out, thereby filtering a large amount of impurities, and the gas escaping from the mixed impurity removal liquid will pass through the outlet pipe 2205 and be filtered again by the activated carbon composite filter element 2208 and the filter bag 2209 before being discharged, which greatly increases the filtering effect of the impurity mist, thereby preventing the impurity mist such as ozone and mist containing metal oxide particles generated during the laser cutting process of the sheet metal from polluting the environment;

[0042] See also Figure 3 and Figure 6 The left side of the purification box 2201 is fixedly connected with an L-shaped connecting plate 2210, and the upper surface of the L-shaped connecting plate 2210 is fixedly connected to the outer surface of the gas collecting hood 2101. By providing the L-shaped connecting plate 2210, the purification box 2201 and the gas collecting hood 2101 can be connected, thereby increasing the position stability of the gas collecting hood 2101;

[0043] See also Figure 1 and Fig.12 The inside of the liquid inlet pipe 2204 is clamped with a dustproof sealing plug 2214, and the upper surface of the dustproof sealing plug 2214 is fixedly connected to a limiting plate 2213, and the bottom surface of the limiting plate 2213 is in contact with the top of the liquid inlet pipe 2204. The dustproof sealing plug 2214 can be blocked inside the liquid inlet pipe 2204, thereby preventing impurities outside the purification box 2201 from entering the purification box 2201. The limiting plate 2213 can be blocked outside the liquid inlet pipe 2204, thereby preventing the dustproof sealing plug 2214 from being stuck in the liquid inlet pipe 2204 and being difficult to pull out.

[0044] See also Fig.12 The outer surface of the limiting plate 2213 is fixedly connected with a first anti-skid sleeve 2215, and the outer surface of the first anti-skid sleeve 2215 is fixedly connected with a plurality of identical first anti-skid convex columns 2216. By providing the first anti-skid convex columns 2216, the anti-skid property of the outer surface of the first anti-skid sleeve 2215 can be increased. By providing the first anti-skid sleeve 2215 and the first anti-skid convex columns 2216, the anti-skid property of the outer surface of the limiting plate 2213 can be increased together, so that it is convenient to stably hold the limiting plate 2213 and easily pull the dustproof sealing plug 2214 out of the liquid inlet pipe 2204;

[0045] See also Figure 7 and Figure 8 The outer surface of the limiting shell 2207 is fixedly connected with a second anti-slip cover 2211, and the outer surface of the second anti-slip cover 2211 is fixedly connected with a plurality of identical second anti-slip bosses 2212. By setting the second anti-slip bosses 2212, the anti-slip property of the outer surface of the second anti-slip cover 2211 can be increased, and then the second anti-slip cover 2211 and the second anti-slip bosses 2212 can jointly increase the anti-slip property of the outer surface of the limiting shell 2207, thereby increasing the stability when holding the outer surface of the limiting shell 2207.

[0046] The specific implementation method of this embodiment is as follows: first, a mixed solution of sodium hydroxide and sodium sulfide or other mixed solution that can absorb ozone or metal oxide mist is injected into the purification box 2201 from the liquid inlet pipe 2204 until the liquid level of the mixed solution monitored by the water level meter 2203 reaches the preset liquid level of the button controller 2202, and the button controller 2202 will send a corresponding prompt light signal, at which time the injection of the mixed solution can be stopped, and then the dustproof sealing plug 2214 is inserted into the liquid inlet pipe 2204 to increase the airtightness of the purification box 2201. Since the bottom of the porous nozzle 2107 is porous, the impurity mist can contact the mixed impurity removal liquid in the purification box 2201 as much as possible when being sprayed out, thereby filtering a large amount of impurities, and the gas escaping from the mixed impurity removal liquid will pass through the outlet pipe 2205 and be filtered again by the activated carbon composite filter element 2208 and the filter bag 2209 before being discharged, which greatly increases the filtering effect of the impurity mist, thereby preventing the impurity mist such as ozone and mist containing metal oxide particles generated during the laser cutting process of the sheet metal from polluting the environment.

[0047] Example 3: Please refer to Figure 1 , Figure 3 and Fig.11 The present invention provides a technical solution: a high-efficiency and environmentally friendly sheet metal laser cutting system. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0048] As a further limitation of the impurity removal liquid circulation mechanism 3 of the present invention, the impurity removal liquid circulation mechanism 3 is provided inside the filter unit 22, and the impurity removal liquid circulation mechanism 3 is used in conjunction with the exhaust gas purification mechanism 2, and the impurity removal liquid circulation mechanism 3 is used to filter and circulate the impurity removal liquid in the filter unit 22;

[0049] The impurity removal liquid circulation mechanism 3 includes a water pump 301, which is electrically connected to the button controller 2202 through a wire. The input end of the water pump 301 is fixedly connected to a liquid extraction pipe 302, and the output end of the water pump 301 is fixedly connected to a liquid delivery pipe 303. The outer surface of the liquid delivery pipe 303 is fixedly connected to the inner wall of the purification box 2201. The inner wall of the purification box 2201 is fixedly connected to a box frame 305. The interior of the box frame 305 is slidably connected to a bearing shell 306. The inner wall of the bearing shell 306 is fixedly connected to a composite filter plate 307. A porous liquid spray head 304 is arranged above the bearing shell 306. The upper surface of the porous liquid spray head 304 is fixedly connected to an end of the liquid delivery pipe 303 away from the water pump 301. During the operation of the air unit 21, the button controller 2202 can simultaneously control the water pump 301 to start pumping water, so that the liquid extraction pipe 302 sprays the precipitate or impurity mixed liquid generated at the porous jet head 2107 to the composite filter plate 307 through the liquid delivery pipe 303 and the porous jet head 304. The carrying shell 306 can collect the precipitate filtered by the composite filter plate 307, and the remaining impurity removal liquid that still has the impurity removal effect passes through the composite filter plate 307 and flows into the purification box 2201 again, so as to facilitate the reuse of the impurity removal liquid, thereby ensuring the continuous filtering effect of the filter unit 22 as much as possible, thereby ensuring the continuous purification effect of the impurity mist generated during the laser cutting process of the sheet metal;

[0050] See also Fig.11 The front of the carrying shell 306 is fixedly connected with a handle support 308, and the inner wall of the handle support 308 is fixedly connected with a pull rod 309. By setting the pull rod 309, a rotation base surface can be provided for the hand-gripping structure in the handle support 308, thereby increasing the use flexibility of the hand-gripping structure. By setting the handle support 308 and the pull rod 309, the carrying shell 306 can be pulled together with the hand-gripping structure;

[0051] See also Figure 1 , Figure 3 and Figure 6 A handle 310 is provided inside the handle support 308, and the inner wall of the handle 310 is rotatably connected to the outer surface of the pull rod 309. By providing the handle 310, it can be rotated around the outer surface of the pull rod 309 inside the handle support 308, and then the carrying shell 306 and the composite filter plate 307 can be conveniently pulled out of the interior of the purification box 2201 by holding the handle 310 by hand, thereby facilitating the cleaning of impurities in the carrying shell 306 filtered by the composite filter plate 307.

[0052] The specific implementation method of this embodiment is as follows: during the operation of the gas collecting unit (21), the button controller (2202) simultaneously controls the water pump (301) to be powered on and start pumping water, so that the liquid extraction pipe (302) sprays the precipitate or impurity mixed liquid generated at the porous nozzle (2107) through the liquid delivery pipe (303) and the porous nozzle (304) to the composite filter plate (307), and the supporting shell (306) collects the precipitate filtered by the composite filter plate (307), and the remaining impurity removal liquid that still has the impurity removal effect passes through the composite filter plate (307) and flows into the purification box (2201) again, so as to facilitate the reuse of the impurity removal liquid, thereby ensuring the continuous filtering effect of the filter unit 22 as much as possible, thereby ensuring the continuous purification effect of the impurity mist generated during the laser cutting process of the sheet metal.

[0053] 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 efficient and environmentally friendly sheet metal laser cutting system, comprising a main body (1), characterized in that: The main body mechanism (1) comprises a bottom plate (11), the upper surface of the bottom plate (11) is respectively fixedly connected with a multi-directional moving mechanism (12) and a positioning mechanism (13), the output end of the multi-directional moving mechanism (12) is fixedly connected with a laser cutting mechanism (14), and the right side of the bottom plate (11) is provided with an exhaust gas purification mechanism (2); The exhaust gas purification mechanism (2) comprises an air collection unit (21), the air collection unit (21) being arranged on the right side of the positioning mechanism (13), and the air collection unit (21) being used to collect impurity mists such as ozone and mist containing metal oxide particles generated during the cutting process of the sheet metal on the positioning mechanism (13) by the laser cutting mechanism (14); The exhaust gas purification mechanism (2) further comprises a filter unit (22), wherein the filter unit (22) is arranged on the right side of the gas collecting unit (21), and the filter unit (22) is used to filter impurity mists such as ozone and mist containing metal oxide particles collected by the gas collecting unit (21); The filter unit (22) is provided with a de-impurity liquid circulation mechanism (3) inside. The de-impurity liquid circulation mechanism (3) is used in conjunction with the exhaust gas purification mechanism (2). The de-impurity liquid circulation mechanism (3) is used to filter and circulate the de-impurity liquid in the filter unit (22).

2. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 1 is characterized by: The air collecting unit (21) comprises an air collecting hood (2101), wherein the air collecting hood (2101) is located on the right side of the positioning mechanism (13), the right side surface of the air collecting hood (2101) is fixedly connected to a four-way pipe (2102), the inner wall of the four-way pipe (2102) is fixedly connected to four exhaust fans (2103), and a negative pressure pump (2104) is arranged on the right side of the four-way pipe (2102).

3. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 2 is characterized in that: The input end of the negative pressure pump (2104) and the outer surface of the four-way pipe (2102) are fixedly connected to an air inlet pipe (2105), the output end of the negative pressure pump (2104) is fixedly connected to an air supply pipe (2106), and the end of the air supply pipe (2106) away from the negative pressure pump (2104) is fixedly connected to a multi-porous nozzle (2107).

4. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 3 is characterized by: The filtering unit (22) comprises a purification box (2201), wherein the purification box (2201) is located on the right side of the negative pressure pump (2104), the inner wall of the purification box (2201) is fixedly connected to the outer surface of the air supply pipe (2106), the outer surface of the negative pressure pump (2104) is fixedly connected to the left side of the purification box (2201), the front of the purification box (2201) is fixedly connected to a button controller (2202), and the inner wall of one side of the purification box (2201) is fixedly connected to a water level meter (2203), and the water level meter (2203), the multi-directional moving mechanism (12), the positioning mechanism (13) and the laser cutting mechanism (14) are all electrically connected to the button controller (2202) via wires.

5. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 4, characterized in that: The upper surface of the purification box (2201) is fixedly connected to a liquid inlet pipe (2204) and an air outlet pipe (2205), respectively; the top end of the air outlet pipe (2205) is fixedly connected to an air filter housing (2206); an activated carbon composite filter element (2208) is clamped inside the air filter housing (2206); the inner wall of the air filter housing (2206) is threadedly connected to a limit housing (2207); a filter bag (2209) is fixedly connected to the inner wall of the limit housing (2207); the inner wall of the filter bag (2209) is in contact with the outer surface of the activated carbon composite filter element (2208).

6. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 5, characterized in that: An L-shaped connecting plate (2210) is fixedly connected to the left side surface of the purification box (2201), and the upper surface of the L-shaped connecting plate (2210) is fixedly connected to the outer surface of the gas collecting hood (2101).

7. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 6, characterized in that: A dustproof sealing plug (2214) is clamped inside the liquid inlet pipe (2204), and the upper surface of the dustproof sealing plug (2214) is fixedly connected to a limiting plate (2213), and the bottom surface of the limiting plate (2213) is in contact with the top of the liquid inlet pipe (2204).

8. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 7, characterized in that: The outer surface of the limiting plate (2213) is fixedly connected to a first anti-slip sleeve (2215), and the outer surface of the first anti-slip sleeve (2215) is fixedly connected to a plurality of identical first anti-slip convex columns (2216).

9. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 8, characterized in that: A second anti-slip sleeve (2211) is fixedly connected to the outer surface of the limiting shell (2207), and a plurality of identical second anti-slip protrusions (2212) are fixedly connected to the outer surface of the second anti-slip sleeve (2211).

10. The high-efficiency and environmentally friendly sheet metal laser cutting system according to claim 3, characterized in that: The impurity removal liquid circulation mechanism (3) comprises a water pump (301), the water pump (301) is electrically connected to the key controller (2202) via a wire, the input end of the water pump (301) is fixedly connected to a liquid extraction pipe (302), the output end of the water pump (301) is fixedly connected to a liquid delivery pipe (303), the outer surface of the liquid delivery pipe (303) is fixedly connected to the inner wall of the purification box (2201), the inner wall of the purification box (2201) is fixedly connected to a box frame (305), the interior of the box frame (305) is slidably connected to a bearing shell (306), the inner wall of the bearing shell (306) is fixedly connected to a composite filter plate (307), a multi-porous liquid spray head (304) is arranged above the bearing shell (306), and the upper surface of the multi-porous liquid spray head (304) is fixedly connected to an end of the liquid delivery pipe (303) away from the water pump (301).

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