Gantry type laser cutting smoke extraction device

Abstract

The utility model discloses a gantry type laser cutting smoke extraction device, which relates to the technical field of laser cutting equipment and comprises a movable ground rail and a laser cutting mechanism capable of linearly moving along the movable ground rail. A plate cutting machine tool body used for containing a steel plate piece and a profile steel supporting mechanism used for containing a profile steel piece are arranged in the middle of the movable ground rail, one side of the movable ground rail is fixedly connected with a fixed smoke suction pipe with the top in a hollowed-out shape, and a partition plate is arranged in the middle of the fixed smoke suction pipe. The two areas, separated by the partition plate, of the fixed smoke suction pipe are communicated with transformation air boxes through two transformation air valves respectively, and the output ends of the transformation air boxes are communicated with a first fan. The two transformation air valves are opened and closed, and when the laser cutting mechanism is relatively located in the front area and the rear area of the fixed smoke suction pipe, the opening and closing states of the two transformation air valves can be switched; therefore, the path of the air duct in the fixed smoke exhaust pipe is shortened, and the smoke exhaust efficiency of the first fan is improved under the condition that the power consumption of the first fan is not changed.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting equipment technology, and more specifically, to a gantry-type laser cutting smoke extraction device. Background Technology

[0002] Laser cutting equipment generates a large amount of smoke and dust when cutting sheet metal and steel profiles. The thicker the workpiece, the more smoke and dust is generated, which causes significant environmental pollution and harms the health of workers. Therefore, smoke extraction is necessary. Due to the large processing area and the long air duct, the existing technology usually adopts the method of increasing the number and power of fans to extract smoke and dust. However, this method consumes a lot of power and has low extraction efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a gantry-type laser cutting smoke extraction device to solve the problems of high power consumption and low smoke extraction efficiency in the existing methods for smoke extraction.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gantry-type laser cutting smoke extraction device, including a movable ground rail and a laser cutting mechanism. The laser cutting mechanism can move linearly along the movable ground rail. The middle of the movable ground rail is provided with a plate cutting machine bed for placing steel plates and a steel section support mechanism for placing profiled steel parts. A fixed smoke extraction pipe with a hollow top is fixedly connected to one side of the movable ground rail. A partition is provided in the middle of the fixed smoke extraction pipe. The two areas of the fixed smoke extraction pipe separated by the partition are respectively connected to a change air box through two change air valves. The output end of the change air box is connected to a fan. A smoke extraction pipe assembly is provided on the laser cutting mechanism. The fixed smoke extraction pipe is connected to the smoke extraction pipe assembly through a follow-up ventilation mechanism.

[0005] Preferably, the follow-up ventilation mechanism includes a belt covering the top of the fixed smoke extraction pipe, with both ends of the belt fixed to the two ends of the fixed smoke extraction pipe. A follow-up smoke extraction pipe is provided above the fixed smoke extraction pipe, and several rollers are rotatably installed inside the follow-up smoke extraction pipe. The belt passes through the several rollers in sequence and forms an arched structure adapted to the follow-up smoke extraction pipe. The top of the follow-up smoke extraction pipe is fixedly installed on one side of the laser cutting mechanism through a connecting frame.

[0006] Preferably, the smoke extraction pipe assembly includes a crossbeam duct, a smoke extraction pipe one, and a smoke extraction pipe two. The crossbeam duct is fixed to the top of the laser cutting mechanism. The smoke extraction pipe one and the smoke extraction pipe two are respectively fixed to the two sides of the bottom of the laser cutting mechanism. Air valve three and air valve one are respectively provided at both ends of the crossbeam duct. Air valve three is connected to one air inlet of the follow-up smoke extraction pipe through a pipe fitting. The other air inlet of the follow-up smoke extraction pipe is connected to the smoke extraction pipe two through air valve two. Air valve one is connected to the smoke extraction pipe one through a connecting pipe one. Air valve four, air valve five, and air valve six are respectively provided at the bottom of the crossbeam duct. A horizontal smoke extraction pipe, a vertical smoke extraction pipe one, and a vertical smoke extraction pipe two are provided below the middle of the laser cutting mechanism. Air valve four, air valve five, and air valve six are respectively connected to the horizontal smoke extraction pipe, the vertical smoke extraction pipe one, and the vertical smoke extraction pipe two through pipe fittings.

[0007] Preferably, the horizontal smoke extraction pipe, vertical smoke extraction pipe one, and vertical smoke extraction pipe two are arranged in an arched structure adapted to the steel profile.

[0008] Preferably, a slag removal and fume extraction mechanism is provided below the cutting machine bed. The slag removal and fume extraction mechanism includes a cutting machine fume extraction pipe located below the cutting machine bed. One end of the cutting machine fume extraction pipe is connected to a fan through a connecting pipe. The two sides of the cutting machine fume extraction pipe are provided with evenly distributed smoke inlets. A sliding plate corresponding to the smoke inlet is slidably provided on the inner wall of the cutting machine fume extraction pipe. A smoke inlet corresponding to the smoke inlet is provided on the sliding plate. A cylinder is also provided on the inner wall of the cutting machine fume extraction pipe. The driving end of the cylinder is fixedly connected to the sliding plate.

[0009] Preferably, the bottom of the cutting machine bed is provided with several receiving carts.

[0010] Preferably, the output ends of both the first fan and the second fan are connected to a dust removal mechanism.

[0011] Preferably, anti-burn plate 1 is provided on the opposite sides of the first smoke extraction pipe and the second smoke extraction pipe.

[0012] Preferably, both the cutting machine bed and the cutting machine exhaust pipe are equipped with anti-burn plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention shortens the path of the air duct inside the fixed smoke extraction pipe by switching the on and off states of two changing air valves when the laser cutting mechanism is in the area before and after the fixed smoke extraction pipe. At this time, the smoke extraction efficiency of the first fan is improved without changing the power consumption of the first fan.

[0015] This invention, through the arrangement of fume extraction pipe one and fume extraction pipe two, can suck up the smoke and dust generated by the plate on the cutting machine body during laser cutting. The horizontal fume extraction pipe is used to absorb the smoke and dust generated when cutting the middle of the steel part, and the vertical fume extraction pipe one and vertical fume extraction pipe two are used to absorb the smoke and dust generated when cutting the sides of the steel part. Furthermore, by using different switches of air valve three, air valve one, air valve four, air valve five, air valve six, and air valve two, the smoke extraction area of ​​the above-mentioned related smoke extraction structure can be further refined, reducing wind pressure loss and optimizing the air duct path.

[0016] This invention uses the extension and retraction of a cylinder to drive the slide plate to slide horizontally. When the first smoke inlet is aligned with the second smoke inlet, the smoke extraction pipe of the cutting machine is opened, and smoke can be sucked in at the corresponding position of the smoke extraction pipe. Conversely, it can be closed, thereby refining the smoke extraction area of ​​the cutting machine's smoke extraction pipe and reducing the air pressure loss of the second fan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the relevant structure of the wind box of this utility model;

[0019] Figure 3 This is a schematic diagram of the relevant structure of the follow-up ventilation mechanism of this utility model;

[0020] Figure 4 This is a first-view structural diagram of the smoke extraction pipe assembly of this utility model.

[0021] Figure 5 This is a second-view structural diagram of the smoke extraction pipe assembly of this utility model.

[0022] Figure 6 This is a first-view structural schematic diagram of the slag removal and smoke extraction mechanism of this utility model.

[0023] Figure 7 This is a second-view structural schematic diagram of the slag removal and smoke extraction mechanism of this utility model.

[0024] Figure 8 This is a structural diagram of the smoke extraction pipe of the plate cutting machine according to this utility model;

[0025] Figure 9 This is a schematic diagram of the internal structure of the smoke extraction pipe of the plate cutting machine of this utility model.

[0026] Figure label:

[0027] 1. Moving ground rail; 2. Laser cutting mechanism; 3. Plate cutting machine bed; 4. Steel support mechanism; 5. Steel plate components; 6. Steel components; 7. Fixed smoke extraction pipe; 8. Partition plate; 9. Variable air box; 10. Variable air valve; 11. Fan 1; 12. Smoke extraction pipe assembly; 121. Crossbeam air duct; 122. Smoke extraction pipe 1; 123. Smoke extraction pipe 2; 124. Air valve 3; 125. Air valve 1; 126. Connecting pipe 1; 127. Air valve 4; 128. Air valve 5; 129. Air valve 6; 1210. Horizontal smoke extraction pipe; 1211. Vertical smoke extraction pipe one; 1212. Vertical smoke extraction pipe two; 1213. Air valve two; 13. Follow-up ventilation mechanism; 131. Belt; 132. Follow-up smoke extraction pipe; 133. Roller; 134. Connecting frame; 14. Slag removal smoke extraction mechanism; 141. Slicing machine smoke extraction pipe; 142. Connecting pipe two; 143. Fan two; 144. Smoke outlet one; 145. Slide plate; 146. Smoke outlet two; 147. Cylinder; 148. Receiving trolley. Detailed Implementation

[0028] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0029] As attached Figure 1 To be continued Figure 9 This utility model provides a gantry-type laser cutting fume extraction device, including a movable ground rail 1 and a laser cutting mechanism 2. The laser cutting mechanism 2 can move linearly along the movable ground rail 1. The middle of the movable ground rail 1 is provided with a cutting machine bed 3 for placing steel plate parts 5 and a steel support mechanism 4 for placing steel profile parts 6. A fixed fume extraction pipe 7 with a hollow top is fixedly connected to one side of the movable ground rail 1. A partition 8 is provided in the middle of the fixed fume extraction pipe 7. The two areas of the fixed fume extraction pipe 7 separated by the partition 8 are respectively connected to a change air box 9 through two change air valves 10. The output end of the change air box 9 is connected to a fan 11. A fume extraction pipe group 12 is provided on the laser cutting mechanism 2. The fixed fume extraction pipe 7 is connected to the fume extraction pipe group 12 through a follow-up ventilation mechanism 13.

[0030] A protective shell can be installed around the laser cutting mechanism 2 to prevent the waste generated by laser cutting from splashing outward and causing harm. By opening and closing the two switching air valves 10, and when the laser cutting mechanism 2 is in the area before and after the fixed smoke extraction pipe 7, the opening and closing states of the two switching air valves 10 can be switched to shorten the path of the air duct inside the fixed smoke extraction pipe 7. At this time, the smoke extraction efficiency of the fan 11 is improved without changing the power consumption of the fan 11.

[0031] Preferably, the follow-up ventilation mechanism 13 includes a belt 131 covering the top of the fixed smoke extraction pipe 7, and the two ends of the belt 131 are respectively fixed to the two ends of the fixed smoke extraction pipe 7. A follow-up smoke extraction pipe 132 is provided above the fixed smoke extraction pipe 7. A plurality of rollers 133 are rotatably installed inside the follow-up smoke extraction pipe 132. The belt 131 passes through the plurality of rollers 133 in sequence and forms an arched structure adapted to the follow-up smoke extraction pipe 132. The top of the follow-up smoke extraction pipe 132 is fixedly installed on one side of the laser cutting mechanism 2 through a connecting frame 134.

[0032] The laser cutting mechanism 2 can move the follow-up smoke extraction pipe 132 together with the connecting frame 134, and the roller 133 can lift the part of the belt 131 inside the follow-up smoke extraction pipe 132 so that the follow-up smoke extraction pipe 132 can be connected to the fixed smoke extraction pipe 7 for smoke extraction treatment.

[0033] Preferably, the smoke extraction pipe assembly 12 includes a crossbeam duct 121, a first smoke extraction pipe 122, and a second smoke extraction pipe 123. The crossbeam duct 121 is fixed to the top of the laser cutting mechanism 2. The first smoke extraction pipe 122 and the second smoke extraction pipe 123 are respectively fixed to the two sides of the bottom of the laser cutting mechanism 2. A third air valve 124 and a first air valve 125 are respectively provided at both ends of the crossbeam duct 121. The third air valve 124 is connected to one air inlet of the follow-up smoke extraction pipe 132 through a pipe fitting. The other air inlet of the follow-up smoke extraction pipe 132 is connected to the second smoke extraction pipe 123 through the second air valve 1213. 123 are connected. Air valve 125 is connected to smoke extraction pipe 122 through connecting pipe 126. Air valve 4 127, air valve 5 128 and air valve 6 129 are respectively installed at the bottom of the crossbeam air duct 121. Horizontal smoke extraction pipe 1210, vertical smoke extraction pipe 1 1211 and vertical smoke extraction pipe 2 1212 are installed in the lower middle part of the laser cutting mechanism 2. Air valve 4 127, air valve 5 128 and air valve 6 129 are respectively connected to horizontal smoke extraction pipe 1210, vertical smoke extraction pipe 1 1211 and vertical smoke extraction pipe 2 1212 through pipe fittings.

[0034] The system incorporates two fume extraction pipes: 122 and 123, which are used to extract the smoke and dust generated during laser cutting of the sheet metal on the cutting machine bed 3. A horizontal fume extraction pipe 1210 is used to absorb the smoke and dust generated when cutting the middle of the steel part 6. Vertical fume extraction pipes 1211 and 1212 are used to absorb the smoke and dust generated when cutting the sides of the steel part 6. Furthermore, the different combinations of air valves 124, 125, 127, 128, 129, and 1213 refine the extraction area of ​​the aforementioned fume extraction structures, reduce air pressure loss, and optimize the airflow path.

[0035] Preferably, the horizontal smoke extraction pipe 1210, the vertical smoke extraction pipe one 1211 and the vertical smoke extraction pipe two 1212 are arranged in an arched structure adapted to the steel profile 6.

[0036] Preferably, a slag removal and fume extraction mechanism 14 is provided below the cutting machine bed 3. The slag removal and fume extraction mechanism 14 includes a cutting machine fume extraction pipe 141 located below the cutting machine bed 3. One end of the cutting machine fume extraction pipe 141 is connected to a second fan 143 through a second connecting pipe 142. The two sides of the cutting machine fume extraction pipe 141 are provided with evenly distributed smoke inlets 144. The inner wall of the cutting machine fume extraction pipe 141 is slidably provided with a slide plate 145 corresponding to the smoke inlet 144. The slide plate 145 is provided with a second smoke inlet 146 corresponding to the smoke inlet 144. The inner wall of the cutting machine fume extraction pipe 141 is also provided with a cylinder 147. The driving end of the cylinder 147 is fixedly connected to the slide plate 145.

[0037] The cylinder 147 extends and retracts, driving the slide plate 145 to slide horizontally. When the first smoke inlet 144 is aligned with the second smoke inlet 146, the smoke extraction pipe 141 of the cutting machine opens, and smoke can be drawn into the corresponding position of the smoke extraction pipe 141. Conversely, it can be closed, thereby refining the smoke extraction area of ​​the smoke extraction pipe 141 of the cutting machine and reducing the wind pressure loss of the second fan 143.

[0038] Preferably, the bottom of the cutting machine bed 3 is provided with several receiving carts 148 for collecting the waste generated when cutting the steel plate parts 5.

[0039] Preferably, the output ends of both fan 11 and fan 2 143 are connected to a dust removal mechanism for removing and filtering the absorbed smoke and dust, thereby reducing the harm to the environment and the health of workers.

[0040] Preferably, anti-burn plates are provided on opposite sides of the first smoke extraction pipe 122 and the second smoke extraction pipe 123 to prevent laser cutting from damaging the surface of the laser cutting mechanism 2.

[0041] Preferably, both the cutting machine bed 3 and the cutting machine exhaust pipe 141 are equipped with anti-burn plates to prevent laser cutting from damaging the sides and lower structure of the cutting machine bed 3, and to prevent laser cutting from damaging the cutting machine exhaust pipe 141.

[0042] The working process of this utility model is as follows:

[0043] Because the flue of the fixed smoke extraction pipe 7 is relatively long, and the length of the steel profile 6 and the distribution distance of the steel plate 5 and the steel profile 6 are relatively long, when the laser head of the laser cutting mechanism 2 is processing on one side of the partition 8 on the fixed smoke extraction pipe 7, the two changing air valves 10 are opened and closed respectively, and the fan 11 is started to make the smoke extraction pipe 122 and the smoke extraction pipe 223 draw smoke. Conversely, when the laser head of the laser cutting mechanism 2 is processing on the other side, the opening and closing states of the two changing air valves 10 can be switched.

[0044] When cutting the steel plate 5, the steel plate 5 is placed on the cutting machine bed 3 and the laser cutting mechanism 2 moves on the moving ground rail 1. The laser head on the laser cutting mechanism 2 cuts the steel plate.

[0045] When the laser head cuts in the left side area of ​​the cutting machine bed 3, smoke and dust are drawn in through the fume extraction pipe 122. Air valves 124 and 125 are open, while air valves 127, 128, 129, and 1213 are closed. The smoke and dust generated during cutting passes sequentially through the fume extraction pipe 122, the crossbeam duct 121, the moving fume extraction pipe 132, and the front fume extraction area of ​​the fixed fume extraction pipe 7. It is then output by the fan 11 to the dust removal device for filtration. For dust removal, when the laser head is cutting in the right side area of ​​the cutting machine body 3, smoke and dust are drawn in through the second smoke extraction pipe 123. The second air valve 1213 is in the open state, while the third air valve 124, the first air valve 125, the fourth air valve 127, the fifth air valve 128, and the sixth air valve 129 are in the closed state. The smoke and dust generated by cutting passes through the front smoke extraction area of ​​the second smoke extraction pipe 123, the follow-up smoke extraction pipe 132, and the fixed smoke extraction pipe 7 in sequence, and is output by the first fan 11 to the dust removal device for filtration and dust removal.

[0046] When cutting the steel section 6, the steel section 6 is placed on the steel section support mechanism 4, and the laser head of the laser cutting mechanism 2 moves along the moving ground rail 1 to cut the steel section 6.

[0047] When the laser head moves to the area on the left side of the steel section 6, the horizontal smoke extraction pipe 1210 and the vertical smoke extraction pipe 1211 absorb the smoke and dust. The air valves 3 124, 4 127, and 5 128 are in the open state, while the air valve 1 125, air valve 6 129, and air valve 2 1213 are in the closed state. The smoke and dust generated by cutting passes through the horizontal smoke extraction pipe 1210, the vertical smoke extraction pipe 1211, the crossbeam air duct 121, the follow-up smoke extraction pipe 132, and the fixed smoke extraction pipe 7, and is output by the fan 11 to the dust removal device for filtration and dust removal. When the laser head moves to the area on the side of the steel section 6, the horizontal smoke extraction pipe 1210 and the vertical smoke extraction pipe 2 1212 absorb the smoke and dust. The air valves 3 124, 4 127, and 6 129 are in the open state, while the air valves 1 125, 5 128, and 2 1213 are in the closed state. The smoke and dust generated by cutting passes through the horizontal smoke extraction pipe 1210, the vertical smoke extraction pipe 2 1212, the crossbeam air duct 121, the follow-up smoke extraction pipe 132, and the fixed smoke extraction pipe 7, and is output by the fan 1 11 to the dust removal device for filtration and dust removal.

[0048] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0049] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0050] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gantry-type laser cutting smoke extraction device, comprising a movable ground rail (1) and a laser cutting mechanism (2), wherein the laser cutting mechanism (2) can move linearly along the movable ground rail (1), and the movable ground rail (1) is provided with a cutting machine bed (3) for placing steel plate parts (5) and a steel section support mechanism (4) for placing steel section parts (6) in the middle, characterized in that, A fixed smoke extraction pipe (7) with a hollow top is fixedly connected to one side of the mobile ground rail (1). A partition (8) is provided in the middle of the fixed smoke extraction pipe (7). The two areas of the fixed smoke extraction pipe (7) separated by the partition (8) are respectively connected to a change air box (9) through two change air valves (10). The output end of the change air box (9) is connected to a fan (11). A smoke extraction pipe group (12) is provided on the laser cutting mechanism (2). The fixed smoke extraction pipe (7) is connected to the smoke extraction pipe group (12) through a follow-up ventilation mechanism (13).

2. The gantry-type laser cutting smoke extraction device according to claim 1, characterized in that, The following ventilation mechanism (13) includes a belt (131) covering the top of the fixed smoke extraction pipe (7), and the two ends of the belt (131) are respectively fixed to the two ends of the fixed smoke extraction pipe (7). A following smoke extraction pipe (132) is provided above the fixed smoke extraction pipe (7). Several rollers (133) are rotatably installed inside the following smoke extraction pipe (132). The belt (131) passes through several rollers (133) in sequence and forms an arched structure adapted to the following smoke extraction pipe (132). The top of the following smoke extraction pipe (132) is fixedly installed on one side of the laser cutting mechanism (2) through a connecting frame (134).

3. The gantry-type laser cutting smoke extraction device according to claim 2, characterized in that, The smoke extraction pipe assembly (12) includes a crossbeam duct (121), a first smoke extraction pipe (122), and a second smoke extraction pipe (123). The crossbeam duct (121) is fixed to the top of the laser cutting mechanism (2). The first smoke extraction pipe (122) and the second smoke extraction pipe (123) are respectively fixed to the two sides of the bottom of the laser cutting mechanism (2). The two ends of the crossbeam duct (121) are respectively provided with a third air valve (124) and a first air valve (125). The third air valve (124) is connected to one air inlet of the follow-up smoke extraction pipe (132) through a pipe fitting. The other air inlet of the follow-up smoke extraction pipe (132) is connected to the second smoke extraction pipe (125) through the second air valve (1213). 23) Connected, the first air valve (125) is connected to the first smoke extraction pipe (122) through the first connecting pipe (126). The bottom of the crossbeam air duct (121) is provided with the fourth air valve (127), the fifth air valve (128) and the sixth air valve (129). The middle part of the laser cutting mechanism (2) is provided with the horizontal smoke extraction pipe (1210), the first vertical smoke extraction pipe (1211) and the second vertical smoke extraction pipe (1212). The fourth air valve (127), the fifth air valve (128) and the sixth air valve (129) are respectively connected to the horizontal smoke extraction pipe (1210), the first vertical smoke extraction pipe (1211) and the second vertical smoke extraction pipe (1212) through pipe fittings.

4. The gantry-type laser cutting smoke extraction device according to claim 3, characterized in that, The horizontal smoke extraction pipe (1210), vertical smoke extraction pipe one (1211) and vertical smoke extraction pipe two (1212) are arranged in an arched structure adapted to the steel profile (6).

5. The gantry-type laser cutting smoke extraction device according to claim 1, characterized in that, A slag removal and fume extraction mechanism (14) is provided below the cutting machine bed (3). The slag removal and fume extraction mechanism (14) includes a cutting machine fume extraction pipe (141) located below the cutting machine bed (3). One end of the cutting machine fume extraction pipe (141) is connected to a second fan (143) through a second connecting pipe (142). The two sides of the cutting machine fume extraction pipe (141) are provided with evenly distributed smoke inlets (144). The inner wall of the cutting machine fume extraction pipe (141) is slidably provided with a slide plate (145) corresponding to the smoke inlet (144). The slide plate (145) is provided with a second smoke inlet (146) corresponding to the smoke inlet (144). The inner wall of the cutting machine fume extraction pipe (141) is also provided with a cylinder (147). The driving end of the cylinder (147) is fixedly connected to the slide plate (145).

6. The gantry-type laser cutting smoke extraction device according to claim 1, characterized in that, The bottom of the cutting machine bed (3) is provided with several receiving carts (148).

7. The gantry-type laser cutting smoke extraction device according to claim 5, characterized in that, The output ends of both the first fan (11) and the second fan (143) are connected to a dust removal mechanism.

8. The gantry-type laser cutting smoke extraction device according to claim 3, characterized in that, Anti-burn plate 1 is provided on the opposite sides of the first smoke extraction pipe (122) and the second smoke extraction pipe (123).

9. The gantry-type laser cutting smoke extraction device according to claim 5, characterized in that, The cutting machine bed (3) and the cutting machine exhaust pipe (141) are both equipped with anti-burn plates.

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