A plate laser cutting device for producing office desks

Abstract

The present invention relates to the technical field of plate laser cutting, and in particular to a plate laser cutting device for producing office desks, comprising a main body plate, wherein a moving mechanism for moving according to a trajectory is arranged at the upper end of the main body plate, the moving mechanism comprising two first limiting grooves symmetrically arranged at the upper end of the main body plate, the upper ends of the two first limiting bodies are fixedly connected with a first electric telescopic rod, the lower end surface of the first fixed body is slidably provided with a second limiting body, the lower end of the second limiting body is fixedly connected with a sealing cutting mechanism for sealing cutting of a wooden board, and the lower end of the main body plate is provided with a circulating filtering mechanism for filtering and collecting debris; the lower end surface of the flexible sealing pad is in close contact with the plate, and at the same time, a cylindrical airbag is inflated to seal the cut gap, so that the area where the laser cutting head is cutting is filled with inert gas, which can prevent the wooden board from being oxidized during cutting, and at the same time, the consumption of the inert gas is very low.

Description

Technical Field

[0001] The invention relates to the technical field of plate laser cutting, and in particular to a plate laser cutting device for producing office desks. Background Art

[0002] When producing office desks, the general method is to cut several standard-sized boards into different shapes, and then connect these boards of different shapes together by glue or nails. When assembling some complex custom office desks, laser cutting is generally used to cut out boards of complex shapes. Since the gap at the cutting point of wood is generally about 2mm when laser cutting, when cutting boards by laser, a certain size must be left in the cutting track in advance to make the size of the cut board consistent with the designed board size.

[0003] In the prior art, when cutting a board by laser, an exhaust structure is generally provided at the laser cutting head, and an inert gas such as nitrogen is ejected during laser cutting, thereby reducing the probability of oxidation of the wood board during laser cutting and preventing combustion. This method consumes a large amount of inert gas and is very costly. During laser cutting, some debris will appear, and the debris will float in the air under the blowing of the inert gas, degrading the air environment in the factory and causing harm to the health of the workers. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a plate laser cutting device for producing office desks.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a plate laser cutting device for producing office desks, comprising a main body plate, a moving mechanism that moves according to a trajectory is provided at the upper end of the main body plate, the moving mechanism comprises two first limit grooves symmetrically arranged at the upper end of the main body plate, first limit bodies are slidably provided in the two first limit grooves, the upper ends of the two first limit bodies are fixedly connected with a first electric telescopic rod, the telescopic ends of the two first electric telescopic rods are fixedly connected with a first fixed body, a second limit body is slidably provided on the lower end surface of the first fixed body, a sealing cutting mechanism for sealing cutting of the wooden board is fixedly connected to the lower end of the second limit body, a circulating filtering mechanism for filtering and collecting debris is provided at the lower end of the main body plate, four support columns are symmetrically provided at the lower end of the main body plate, and the lower ends of the four support columns are fixedly connected with support seats.

[0006] Preferably, two first motors are fixedly connected to the side of the main body plate, and the transmission shaft ends of the two first motors are respectively fixedly connected to first threaded rods in the first limiting grooves, and the two first threaded rods are respectively arranged with the first limiting body through threaded cooperation.

[0007] Preferably, a second limiting groove is provided at the lower end of the first fixed body, a second motor is fixedly connected to the second limiting groove, a second threaded rod is fixedly connected to the transmission shaft end of the second motor, a threaded hole is penetrated through the second limiting body, the threaded hole is matched with the second threaded rod, and the second limiting body is slidably matched with the second limiting groove.

[0008] Preferably, the sealing and cutting mechanism includes a second electric telescopic rod fixedly arranged at the lower end of the second limiting body, the telescopic end of the second electric telescopic rod is fixedly connected to the laser cutting head, a fixing ring is rotatably arranged on the side of the fixed section of the second electric telescopic rod, the lower end of the fixing ring is fixedly connected to four symmetrically arranged third electric telescopic rods, the telescopic ends of the four third electric telescopic rods are fixedly connected to a fixing plate, the upper end of the fixing plate is penetrated by a through hole which fits the side of the laser cutting head, the end face of the fixing plate is provided with a fixing rod, and the upper end of the fixing rod is communicated with the circulation filtering mechanism through an air pipe.

[0009] Preferably, a first mounting groove is formed through the upper end of the fixing plate, the fixing rod is fixedly arranged in the first mounting groove, a placement groove is formed on the side of the fixing rod near the lower end, a cylindrical airbag is fixedly connected in the placement groove, a first air delivery hole is formed on the upper end of the fixing rod, a second air delivery hole communicating with the first air delivery hole and the cylindrical airbag is formed in the fixing rod, a plurality of air outlet holes are formed at equal distances on the side of the cylindrical airbag near the laser cutting head, and the surface material of the cylindrical airbag is a flexible frosted material.

[0010] Preferably, a side surface of the second electric telescopic rod is fixedly connected to a limit ring, an inner side surface of the fixing ring is provided with an annular groove which rotatably cooperates with the limit ring, an upper end of the fixing ring is fixedly connected to a gear ring, a lower end of the second limiting body is fixedly connected to a third motor, a transmission shaft end of the third motor is fixedly connected to a transmission rod, a lower end of the transmission rod is fixedly connected to a gear meshing with the gear ring, and a flexible sealing pad is fixedly connected to the lower end of the fixed plate.

[0011] Preferably, the circulation filtering mechanism includes a third limiting groove opened at the upper end of the main body plate, a second mounting groove communicating with the third limiting groove is opened at the lower end of the main body plate, a connecting ring is fixedly connected to the inside of the second mounting groove by bolts, a filter plate is fixedly connected to the inner side of the lower end of the connecting ring, an air pump is fixedly connected to the lower end of the second mounting groove, a telescopic air pipe is provided at the lower end of the air pump, an adapter is fixedly connected to the upper end of the first fixed body, and the end of the telescopic air pipe is communicated with the sealing cutting mechanism through the adapter.

[0012] Preferably, a heat conducting plate is provided in the third limiting groove, a plurality of equally spaced limiting holes are provided at the upper end of the heat conducting plate, and a check valve is fixedly connected to each of the plurality of limiting holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] After the second electric telescopic rod is extended to drive the laser cutting head to the predetermined cutting position, several third electric telescopic rods are extended to drive the flexible sealing pad at the lower end of the fixed plate to contact the plate. The flexible sealing pad is made of flexible material, which can ensure the sealing contact between the lower end of the flexible sealing pad and the upper end surface of the plate. At this time, the laser cutting head passes through the through hole on the upper end surface of the fixed plate to perform laser cutting on the plate. While cutting, the third motor is started, and the third motor drives the gear to rotate through the transmission rod, the gear drives the gear ring to rotate, and the gear ring drives the fixed ring to rotate, ensuring that the first mounting groove on the fixed plate is always located at the trajectory after cutting while the laser cutting head is cutting, a fixing rod is fixedly connected in the first mounting groove, and the first air supply hole at the upper end of the fixing rod is connected through the air supply pipe The cylindrical airbag is connected to the telescopic air pipe and the side of the fixed rod. The inert gas enters the cylindrical airbag through the second air delivery hole and is then discharged through a plurality of air outlet holes. The cross section of the second air delivery hole is larger than the sum of the plurality of air outlet holes. This ensures that when the laser cutting head cuts the plate, the lower end surface of the flexible sealing pad is in close contact with the plate. At the same time, the cylindrical airbag is inflated to seal the cut gap, so that the area where the laser cutting head cuts is filled with inert gas, which can prevent the oxidation of the wooden plate during cutting. At the same time, the consumption of inert gas is very low, which reduces the oxidation of the plate after cutting and reduces the cost of laser cutting. The fixed rod can be rotated to various positions by rotating the fixed disk, which can be applied to any complex shape.

[0015] The gas under the fixed plate drives impurities such as debris to move into the connecting ring through the one-way valve. The debris and other impurities are then isolated above the filter plate, so that the debris can be collected separately to prevent it from being discharged into the air. The filtered gas is then brought to the telescopic air pipe for circulation through an air pump. During the movement, the gas in the telescopic air pipe is cooled, which can reduce the temperature in the fixed plate during laser cutting and improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 The present invention is a sectional view of the whole Figure 1 ;

[0018] Figure 3 The present invention is a sectional view of the whole Figure 2 ;

[0019] Figure 4 It is a partial structural schematic diagram of the present invention;

[0020] Figure 5 It is a partial cross-sectional view of the present invention;

[0021] Figure 6 For the present invention Figure 3 A magnified image of point A;

[0022] Figure 7 For the present invention Figure 3 A magnified view of point B;

[0023] Figure 8 For the present invention Figure 5 Enlarged view of point C.

[0024] 1. Main body plate; 2. Moving mechanism; 3. Sealing and cutting mechanism; 4. Circulating and filtering mechanism; 11. Support column; 12. Support seat; 21. First motor; 22. First limiting groove; 23. First fixed body; 24. First limiting body; 25. First threaded rod; 26. First electric telescopic rod; 27. Second limiting body; 28. Threaded hole; 29. ​​Second threaded rod; 210. Second limiting groove; 211. Second motor; 31. Second electric telescopic rod; 32. Fixed ring; 33. Gear ring; 34. Third motor; 35. Transmission rod; 36. Gear; 37. The third electric telescopic rod; 38. The laser cutting head; 39. The fixing plate; 310. The flexible sealing pad; 311. The through hole; 312. The limiting ring; 313. The annular groove; 314. The first mounting groove; 315. The fixing rod; 316. The placement groove; 317. The cylindrical air bag; 318. The first air delivery hole; 319. The second air delivery hole; 320. The air outlet hole; 41. The second mounting groove; 42. The telescopic air pipe; 43. The connecting ring; 44. The filter plate; 45. The air pump; 46. The third limiting groove; 47. The heat transfer plate; 48. The limiting hole; 49. The one-way valve. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0026] See also Figure 1-Figure 8 A plate laser cutting device for producing office desks includes a main plate 1, and a moving mechanism 2 that moves according to a trajectory is provided on the upper end of the main plate 1.

[0027] In this embodiment, the moving mechanism 2 includes two first limiting grooves 22 symmetrically opened at the upper end of the main plate 1, and a first limiting body 24 is slidably arranged in the two first limiting grooves 22 respectively, and the upper ends of the two first limiting bodies 24 are fixedly connected with a first electric telescopic rod 26, and the telescopic ends of the two first electric telescopic rods 26 are fixedly connected with a first fixed body 23, and the lower end surface of the first fixed body 23 is slidably arranged with a second limiting body 27.

[0028] Two first motors 21 are fixedly connected to the side of the main body plate 1, and the transmission shaft ends of the two first motors 21 are respectively fixedly connected with first threaded rods 25 in the first limiting groove 22, and the two first threaded rods 25 are respectively arranged with the first limiting body 24 through threaded cooperation.

[0029] A second limiting groove 210 is provided at the lower end of the first fixed body 23, a second motor 211 is fixedly connected in the second limiting groove 210, a second threaded rod 29 is fixedly connected to the transmission shaft end of the second motor 211, a threaded hole 28 is penetrated through the second limiting body 27, the threaded hole 28 is matched with the second threaded rod 29, and the second limiting body 27 is slidably matched with the second limiting groove 210.

[0030] Specifically, the first motor 21 drives the first threaded rod 25 to rotate, and the first threaded rod 25 cooperates to drive the first limiting body 24 to move along the first limiting groove 22, thereby driving the sealing cutting mechanism 3 to move longitudinally. At the same time, the second motor 211 drives the second threaded rod 29 to rotate, and the second threaded rod 29 cooperates to drive the second limiting body 27 to move back and forth along the second limiting groove 210, which can ensure that the moving mechanism 2 drives the sealing cutting mechanism 3 to move accurately along the trajectory that needs to be cut.

[0031] In this embodiment, a sealing cutting mechanism 3 for sealingly cutting the wooden board is fixedly connected to the lower end of the second limiting body 27 .

[0032] The sealing and cutting mechanism 3 includes a second electric telescopic rod 31 fixedly arranged at the lower end of the second limiting body 27, the telescopic end of the second electric telescopic rod 31 is fixedly connected to a laser cutting head 38, a fixing ring 32 is rotatably arranged on the side of the fixed section of the second electric telescopic rod 31, the lower end of the fixing ring 32 is fixedly connected to four symmetrically arranged third electric telescopic rods 37, the telescopic ends of the four third electric telescopic rods 37 are fixedly connected to a fixing plate 39, the upper end of the fixing plate 39 is penetrated by a through hole 311 that fits the side of the laser cutting head 38, the end face of the fixing plate 39 is provided with a fixing rod 315, and the upper end of the fixing rod 315 is communicated with the circulation filtering mechanism 4 through an air supply pipe.

[0033] A first mounting groove 314 is formed through the upper end of the fixing plate 39, and the fixing rod 315 is fixedly arranged in the first mounting groove 314. A placement groove 316 is formed on the side of the fixing rod 315 near the lower end, and a cylindrical airbag 317 is fixedly connected in the placement groove 316. A first air delivery hole 318 is formed on the upper end of the fixing rod 315, and a second air delivery hole 319 communicating with the first air delivery hole 318 and the cylindrical airbag 317 is formed in the fixing rod 315. A plurality of air outlet holes 320 are formed at equal distances on the side of the cylindrical airbag 317 near the laser cutting head 38, and the surface material of the cylindrical airbag 317 is a flexible frosted material.

[0034] A limit ring 312 is fixedly connected to the side of the second electric telescopic rod 31, and an annular groove 313 is provided on the inner side of the fixing ring 32 for rotationally cooperating with the limit ring 312. A gear ring 33 is fixedly connected to the upper end of the fixing ring 32, and a third motor 34 is fixedly connected to the lower end of the second limiting body 27. A transmission rod 35 is fixedly connected to the transmission shaft end of the third motor 34, and a gear 36 meshing with the gear ring 33 is fixedly connected to the lower end of the transmission rod 35. A flexible sealing pad 310 is fixedly connected to the lower end of the fixed plate 39.

[0035] Specifically, several third electric telescopic rods 37 are extended, driving the flexible sealing pad 310 at the lower end of the fixed plate 39 to contact the plate. The flexible sealing pad 310 is made of flexible material, which can ensure the sealing contact between the lower end of the flexible sealing pad 310 and the upper end surface of the plate. At this time, the laser cutting head 38 passes through the through hole 311 on the upper end surface of the fixed plate 39 to perform laser cutting on the plate.

[0036] In this embodiment, a circulating filtering mechanism 4 for filtering and collecting debris is disposed at the lower end of the main plate 1 , and four supporting columns 11 are symmetrically disposed at the lower end of the main plate 1 , and the lower ends of the four supporting columns 11 are respectively fixedly connected to supporting seats 12 .

[0037] The circulation filtering mechanism 4 includes a third limiting groove 46 opened at the upper end of the main body plate 1, and a second mounting groove 41 communicating with the third limiting groove 46 is opened at the lower end of the main body plate 1. A connecting ring 43 is fixedly connected to the inside of the second mounting groove 41 by bolts, and a filter plate 44 is fixedly connected to the inner side of the lower end of the connecting ring 43, and an air pump 45 is fixedly connected to the lower end of the second mounting groove 41. A telescopic air pipe 42 is provided at the lower end of the air pump 45, and an adapter is fixedly connected to the upper end of the first fixed body 23, and the end of the telescopic air pipe 42 is communicated with the sealing cutting mechanism 3 through the adapter.

[0038] A heat conducting plate 47 is provided in the third limiting groove 46 , and a plurality of equally spaced limiting holes 48 are provided at the upper end of the heat conducting plate 47 . Check valves 49 are fixedly connected to the plurality of limiting holes 48 .

[0039] Specifically, the gas below the fixed disk 39 drives impurities such as debris to move through the one-way valve 49 into the connecting ring 43, and then the debris and other impurities are isolated above the filter plate 44, so that the debris can be collected separately to prevent the debris from being discharged into the air. The filtered gas is then brought to the telescopic air pipe 42 for recycling through the air pump 45. During the movement, the gas in the telescopic air pipe 42 is cooled, which can reduce the temperature in the fixed disk 39 during laser cutting.

[0040] When in use, place the plate to be cut on the upper end surface of the heat conducting plate 47, then start the air pump 45, and the air pump 45 moves the gas above the several one-way valves 49 downward through the second mounting groove 41 and the third limiting groove 46. At this time, the one-way valve 49 located under the plate can fix the plate by suction to prevent the plate from shifting during cutting, thereby improving the cutting stability. Then, inert gas is injected under the heat conducting plate 47. When cutting, the first motor 21 drives the first threaded rod 25 to rotate, and the first threaded rod 25 cooperates to drive the first limiting body 24 to move along the first limiting groove 22, thereby driving the sealing cutting mechanism 3 to move longitudinally. At the same time, the second motor 211 drives the second threaded rod 25 to rotate. The rod 29 rotates, and the second threaded rod 29 cooperates to drive the second limiting body 27 to move back and forth along the second limiting groove 210, which can ensure that the moving mechanism 2 drives the sealing cutting mechanism 3 to move accurately along the trajectory to be cut, thereby improving the practicality of the device. At the same time, during the movement, the second electric telescopic rod 31 extends, driving the laser cutting head 38 to move to the predetermined cutting position, and then several third electric telescopic rods 37 extend, driving the flexible sealing pad 310 at the lower end of the fixed plate 39 to contact the plate. The flexible sealing pad 310 is made of a flexible material, which can ensure the sealing contact between the lower end of the flexible sealing pad 310 and the upper end surface of the plate. At this time, the laser cutting head 38 passes through the upper end surface of the fixed plate 39. The through hole 311 of the laser cutting machine is used to perform laser cutting on the plate. During the cutting, the third motor 34 is started, and the third motor 34 drives the gear 36 to rotate through the transmission rod 35, and the gear 36 drives the gear ring 33 to rotate, and the gear ring 33 drives the fixed ring 32 to rotate, so as to ensure that the first mounting groove 314 on the fixed plate 39 is always located at the track after cutting while the laser cutting head 38 is cutting. A fixing rod 315 is fixedly connected in the first mounting groove 314, and the first gas delivery hole 318 at the upper end of the fixing rod 315 is communicated with the telescopic gas pipe 42 through the gas delivery pipe. A cylindrical air bag 317 is arranged on the side of the fixing rod 315, and the inert gas enters the cylindrical air bag 317 through the second gas delivery hole 319. The air is then discharged through a plurality of air outlet holes 320, and the cross-section of the second air delivery hole 319 is greater than the sum of the plurality of air outlet holes 320, which can ensure that when the laser cutting head 38 cuts the plate, the lower end surface of the flexible sealing pad 310 is in close contact with the plate, and at the same time the cylindrical airbag 317 is inflated to seal the cut gap, so that the area where the laser cutting head 38 is cutting is filled with inert gas, which can prevent the oxidation of the wooden plate during cutting, and at the same time the consumption of inert gas is very low, which can reduce the oxidation of the plate after cutting and the cost of laser cutting, and the fixing rod 315 can be rotated to various positions by rotating the fixing plate 39, which can be suitable for any complex shape.

[0041] While cutting, the gas under the fixed disk 39 drives impurities such as debris to move into the connecting ring 43 through the one-way valve 49. The debris and other impurities are then isolated above the filter plate 44, so that the debris can be collected separately to prevent the debris from being discharged into the air. The filtered gas is then brought to the telescopic air pipe 42 for recycling through the air pump 45. During the movement, the gas in the telescopic air pipe 42 is cooled, which can reduce the temperature in the fixed disk 39 during laser cutting and improve the safety of the device.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A plate laser cutting device for producing office desks, comprising a main plate (1), characterized in that: The upper end of the main body plate (1) is provided with a moving mechanism (2) that moves according to a trajectory, the moving mechanism (2) comprising two first limiting grooves (22) symmetrically arranged on the upper end of the main body plate (1), first limiting bodies (24) being slidably arranged in the two first limiting grooves (22), the upper ends of the two first limiting bodies (24) being fixedly connected with first electric telescopic rods (26), the telescopic ends of the two first electric telescopic rods (26) being fixedly connected with first fixed bodies (23), the lower end surface of the first fixed body (23) being slidably provided with second limiting bodies (27), the lower end of the second limiting body (27) being fixedly connected with a sealing cutting mechanism (3) for sealing cutting of a wooden board, the lower end of the main body plate (1) being provided with a circulating filtering mechanism (4) for filtering and collecting debris, the lower end of the main body plate (1) being symmetrically provided with four supporting columns (11), the lower ends of the four supporting columns (11) being fixedly connected with supporting seats (12) respectively; The sealing cutting mechanism (3) comprises a second electric telescopic rod (31) fixedly arranged at the lower end of the second limiting body (27); the telescopic end of the second electric telescopic rod (31) is fixedly connected to a laser cutting head (38); a fixing ring (32) is rotatably arranged on the side of the fixed section of the second electric telescopic rod (31); the lower end of the fixing ring (32) is fixedly connected to four symmetrically arranged third electric telescopic rods (37); the telescopic ends of the four third electric telescopic rods (37) are fixedly connected to a fixing plate (39); the upper end of the fixing plate (39) is penetrated by a through hole (311) that fits the side of the laser cutting head (38); the end surface of the fixing plate (39) is provided with a fixing rod (315); the upper end of the fixing rod (315) is communicated with the circulation filtering mechanism (4) through an air supply pipe; The upper end of the fixing plate (39) is provided with a first mounting groove (314), the fixing rod (315) is fixedly arranged in the first mounting groove (314), the side surface of the fixing rod (315) is provided with a placement groove (316) at a position close to the lower end, a cylindrical air bag (317) is fixedly connected in the placement groove (316), the upper end of the fixing rod (315) is provided with a first air delivery hole (318), the fixing rod (315) is provided with a second air delivery hole (319) which is in communication with the first air delivery hole (318) and the cylindrical air bag (317), the side surface of the cylindrical air bag (317) is provided with a plurality of air outlet holes (320) at equal intervals at a position close to the laser cutting head (38), and the surface material of the cylindrical air bag (317) is a flexible frosted material.

2. A plate laser cutting device for producing office desks according to claim 1, characterized in that: Two first motors (21) are fixedly connected to the side of the main body plate (1); the transmission shaft ends of the two first motors (21) are respectively fixedly connected to first threaded rods (25) in first limiting grooves (22); and the two first threaded rods (25) are respectively arranged with first limiting bodies (24) by threaded engagement.

3. The plate laser cutting device for producing office desks according to claim 1, characterized in that: A second limiting groove (210) is provided at the lower end of the first fixed body (23), a second motor (211) is fixedly connected in the second limiting groove (210), a second threaded rod (29) is fixedly connected to the transmission shaft end of the second motor (211), a threaded hole (28) is provided through the second limiting body (27), the threaded hole (28) is matched with the second threaded rod (29), and the second limiting body (27) is slidably matched with the second limiting groove (210).

4. The plate laser cutting device for producing office desks according to claim 1, characterized in that: A side surface of the second electric telescopic rod (31) is fixedly connected to a limit ring (312); an inner side surface of the fixing ring (32) is provided with an annular groove (313) rotatably matched with the limit ring (312); an upper end of the fixing ring (32) is fixedly connected to a gear ring (33); a lower end of the second limiting body (27) is fixedly connected to a third motor (34); a transmission shaft end of the third motor (34) is fixedly connected to a transmission rod (35); a lower end of the transmission rod (35) is fixedly connected to a gear (36) meshing with the gear ring (33); and a lower end of the fixing plate (39) is fixedly connected to a flexible sealing pad (310).

5. The plate laser cutting device for producing office desks according to claim 1, characterized in that: The circulation filtering mechanism (4) comprises a third limiting groove (46) provided at the upper end of the main body plate (1); a second mounting groove (41) communicating with the third limiting groove (46) is provided at the lower end of the main body plate (1); a connecting ring (43) is fixedly connected in the second mounting groove (41) by bolts; a filter plate (44) is fixedly connected to the inner side of the lower end of the connecting ring (43); an air pump (45) is fixedly connected to the lower end of the second mounting groove (41); a telescopic air pipe (42) is provided in communication with the lower end of the air pump (45); an adapter is fixedly connected to the upper end of the first fixed body (23); and an end of the telescopic air pipe (42) is communicated with the sealing cutting mechanism (3) through the adapter.

6. The plate laser cutting device for producing office desks according to claim 5, characterized in that: A heat conducting plate (47) is arranged in the third limiting groove (46), and a plurality of equally spaced limiting holes (48) are provided at the upper end of the heat conducting plate (47), and a check valve (49) is fixedly connected to each of the plurality of limiting holes (48).

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