Automatic laser cutting equipment capable of efficiently removing smoke dust

Abstract

The invention discloses automatic laser cutting equipment capable of efficiently removing smoke dust, and relates to the technical field of laser cutting, the automatic laser cutting equipment comprises a laser cutting machine body, the laser cutting machine body comprises a base table, a plurality of bearing plates are fixed to the inner wall of the base table, and two ventilation pipelines are symmetrically fixed to the inner wall of the base table; a plurality of side through grooves are formed in the opposite faces of the two ventilation pipelines, a plurality of lifting blocking plates used in cooperation with the corresponding side through grooves are movably arranged on the lower end face of each ventilation pipeline in a penetrating mode, and a driving assembly used in cooperation with the lifting blocking plates is arranged below each ventilation pipeline. The tail ends of the two ventilation pipelines communicate with an external air exhaust assembly. Due to the fact that the lifting blocking plate vertically moves up and down, the occupied area of the side face of the ventilation pipeline is small, the interval area of the adjacent side through grooves is small, and smoke dust at the corresponding position can be efficiently sucked after each side through groove is exposed.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to an automatic laser cutting device with high efficiency in removing smoke and dust. Background Art

[0002] The laser cutting machine generates a high-energy laser beam through a laser (such as a CO2 laser, fiber laser or YAG laser). This laser beam is focused into a very small point through the optical path system (including reflectors and lenses), making the laser power density extremely high. When the focused laser beam irradiates the surface of the material, the material absorbs the laser energy, causing the temperature of the irradiated area to rise rapidly, and the material melts, ablates or vaporizes.

[0003] The existing laser cutting machines have certain defects during use. For example, a certain amount of smoke and dust will be generated during the process of cutting the plate. The existing laser cutting machines are usually equipped with an exhaust duct inside the base, and a plurality of exhaust ports are opened on the side of the exhaust duct. The exhaust ports are usually sealed by a side-opening door. Since the sealing plate for sealing the exhaust ports has a certain length, when this method is adopted, the distance between the two adjacent exhaust ports will be far. When the cutting position of the laser is between the two exhaust ports, the corresponding exhaust port has a poor smoke and dust suction effect on this position. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art:

[0005] The exhaust duct on the existing laser cutting machine usually uses a side-opening door to block the exhaust port, which results in a long distance between two adjacent exhaust ports. When the cutting position of the laser is between the two exhaust ports, the corresponding exhaust port has a poor smoke and dust suction effect on this position.

[0006] An automated laser cutting equipment with high efficiency in removing smoke and dust is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An automated laser cutting device with high-efficiency smoke and dust removal comprises a laser cutting machine body, wherein the laser cutting machine body comprises a base table, a plurality of receiving plates are fixed on the inner wall of the base table, two ventilation ducts are symmetrically fixed on the inner wall of the base table, a plurality of side through grooves are provided on the opposite surfaces of the two ventilation ducts, a plurality of lifting and blocking plates for cooperating with the corresponding side through grooves are movably penetrated on the lower end surface of each ventilation duct, a driving assembly for cooperating with the lifting and blocking plates is provided under each ventilation duct, and the ends of the two ventilation ducts are connected to an external exhaust assembly.

[0009] As a further technical solution of the present invention, each of the driving components includes a cylinder movably arranged under the corresponding ventilation duct, a T-shaped connecting block is fixed to the end of the telescopic end of the cylinder, and a connecting plate used in conjunction with the T-shaped connecting block is fixed to the lower end of each lifting sealing plate.

[0010] As a further technical solution of the present invention, a T-shaped slide groove is provided through the side wall of each connecting plate, and the size of the T-shaped slide groove matches that of the T-shaped connecting block.

[0011] As a further technical solution of the present invention, a plurality of balls are rotatably arranged on both sides of each T-shaped connecting block.

[0012] As a further technical solution of the present invention, two sliding guide rails are symmetrically fixed to the inner bottom of the base platform, a sliding seat is slidably arranged in each sliding guide rail, and each cylinder is fixed to the upper end surface of the corresponding sliding seat.

[0013] As a further technical solution of the present invention, limiting slide blocks are fixed on both sides of each sliding seat, and two limiting slide grooves used in conjunction with corresponding limiting slide blocks are symmetrically provided on the inner wall of each sliding guide rail.

[0014] As a further technical solution of the present invention, multiple pairs of L-shaped guide blocks are fixed on the inner wall of each ventilation duct, there is a gap between the upper end of the L-shaped guide block and the inner top of the ventilation duct, and a wiping layer is fixed on the upper end surface of each lifting sealing plate.

[0015] As a further technical solution of the present invention, two movable seats are symmetrically and movably arranged on the upper end surface of the base platform, a mounting seat is movably arranged between the two movable seats, and a laser cutting head is arranged on the lower end surface of the mounting seat.

[0016] As a further technical solution of the present invention, a connecting arm is fixed to one side of each movable seat, a fixing plate is fixed to the upper end surface of each sliding seat, and a plurality of intermediate plates are fixed between the fixing plate and the connecting arm.

[0017] As a further technical solution of the present invention, a plurality of pressure sensors are fixed to the upper end surface of each ventilation duct, a fixed block is fixed to one side of each connecting arm, a U-shaped frame is movably arranged below the fixed block, a resistance wheel is rotatably arranged on the inner wall of the U-shaped frame, a plurality of guide rods are fixed to the upper end surface of the U-shaped frame, the upper end of each guide rod movably passes through the fixed block, a plurality of springs are fixed between the fixed block and the U-shaped frame, and each spring is movably sleeved on the outer surface of the guide rod.

[0018] Beneficial effects of the present invention:

[0019] 1. When in use, place the plate to be cut on the receiving plate, and then the laser cutting machine body cuts the plate. During the cutting process, under the action of the driving component, the lifting and blocking plates at the corresponding positions are moved downward to expose the corresponding side slots, and the smoke and dust generated during the processing are sucked out. Since the lifting and blocking plates move vertically up and down, the side area of ​​the ventilation duct is smaller, so that the area between adjacent side slots is smaller (avoiding the existence of dead corners for exhaust between two adjacent side slots), so that each side slot can efficiently suck the smoke and dust at the corresponding position after it is exposed.

[0020] 2. When the lifting and blocking plate at the corresponding position moves downward and opens, the side groove corresponding to the position is exposed to suck the smoke and dust. When the smoke and dust pass through the side groove, the particles and other substances in the smoke and dust will enter the inner surface of the L-shaped guide block. When the lifting and blocking plate moves upward and returns to its initial state to block the side groove, it will drive the wiping layer to move upward together, thereby pushing the dust and other substances adhered to the inner surfaces of the two L-shaped guide blocks upward. At this time, this part of the dust particles and impurities are still located on the upper end surface of the wiping layer. When the ventilation duct is evacuated again, this part of the dust particles and impurities can be taken away.

[0021] 3. When the movable seat moves, the connecting arm will move together, thereby moving the movable seat through the middle plate and the fixed plate, so that the cylinder can follow the movement, and the connecting arm will move together with the fixed block, guide rod, U-shaped frame and contact wheel during the movement. When the contact wheel moves, it will pass through the surface of each pressure sensor (in the initial state, each pressure sensor is in the power-off state, and the pressure sensor is only in the power-on state when the laser cutting head is ready to start working). At this time, the pressure sensor will not generate an electrical signal. When the contact wheel roller presses on the upper end surface of the pressure sensor, the spring will be squeezed and contracted. Thereby, a downward force is applied to the U-shaped frame and the resistance wheel. When the movable seat, the mounting seat and the laser cutting head move to the processing position, the cylinder and the T-shaped connecting block also move to the bottom of the corresponding lifting and blocking plate. When the laser cutting head is ready to cut, each pressure sensor is energized. At this time, the pressure sensor to which the resistance wheel applies force generates an electrical signal to control the contraction of the telescopic end of the cylinder, prompting the T-shaped connecting block and the connecting plate to cooperate, and move the lifting and blocking plate corresponding to this position downward. In addition, the diameter of the resistance wheel is larger than the distance between the two pressure sensors, so that the resistance wheel can press two adjacent pressure sensors at the same time to cooperate in the vacuum operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the base platform in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the side through groove in the present invention;

[0025] Figure 4 This is a schematic diagram of the connection between the lifting and blocking plate and the connecting plate in the present invention;

[0026] Figure 5 Schematic diagram of the connection between the connecting arm and the middle plate in the present invention Figure 1 ;

[0027] Figure 6 Schematic diagram of the connection between the connecting arm and the middle plate in the present invention Figure 2 ;

[0028] Figure 7 It is a schematic diagram of the connection between the cylinder and the T-shaped connecting block in the present invention.

[0029] In the figure: 1. Laser cutting machine body; 2. Base table; 3. Socket plate; 4. Ventilation duct; 5. Side through groove; 6. Lifting and blocking plate; 7. Cylinder; 8. T-shaped connecting block; 9. Connecting plate; 10. T-shaped slide groove; 11. Ball bearing; 12. Sliding guide rail; 13. Sliding seat; 14. Limiting slider; 15. L-shaped guide block; 16. Wiping layer; 17. Moving seat; 18. Mounting seat; 19. Connecting arm; 20. Fixed plate; 21. Middle plate; 22. Pressure sensor; 23. Fixed block; 24. U-shaped frame; 25. Resistance wheel; 26. Guide rod. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0031] Reference Figure 1-Figure 7 , an automated laser cutting equipment with high efficiency in removing smoke and dust, comprising a laser cutting machine body 1, the laser cutting machine body 1 comprising a base platform 2, a plurality of receiving plates 3 being fixed on the inner wall of the base platform 2, two ventilation ducts 4 being symmetrically fixed on the inner wall of the base platform 2, a plurality of side through grooves 5 being provided on the opposite surfaces of the two ventilation ducts 4, a plurality of lifting and blocking plates 6 being movably penetrated and used in conjunction with the corresponding side through grooves 5, a driving assembly being provided below each ventilation duct 4 for cooperating with the lifting and blocking plates 6, the ends of the two ventilation ducts 4 being connected to an external exhaust assembly, the exhaust assembly being a prior art, and being used in conjunction with the ventilation duct 4 for exhaust operation, the smoke and dust generated by laser cutting being sucked into the exhaust assembly through the ventilation duct 4, the exhaust assembly being provided with a filtering and purification unit for purifying the smoke and dust.

[0032] Reference Figure 1-Figure 3When in use, the plate to be cut is placed on the receiving plate 3, and then the laser cutting machine body 1 cuts the plate. During the cutting process, under the action of the driving component, the lifting and blocking plate 6 at the corresponding position is moved downward to expose the corresponding side groove 5, and the smoke and dust generated during the processing are sucked out. Since the lifting and blocking plate 6 moves vertically up and down, the side area of ​​the ventilation duct 4 is smaller, so that the interval area between adjacent side grooves 5 is smaller (avoiding the existence of a dead corner for exhaust between two adjacent side grooves 5), so that each side groove 5 can efficiently suck the smoke and dust at the corresponding position after being exposed.

[0033] Reference Figure 2 , Figure 4 and Figure 6 Each driving assembly includes a cylinder 7 movably arranged under the corresponding ventilation duct 4, a T-shaped connecting block 8 is fixed to the end of the telescopic end of the cylinder 7, and a connecting plate 9 used in conjunction with the T-shaped connecting block 8 is fixed to the lower end of each lifting sealing plate 6.

[0034] Reference Figure 4 A T-shaped slot 10 is formed through the side wall of each connecting plate 9 , and the size of the T-shaped slot 10 matches the size of the T-shaped connecting block 8 .

[0035] Reference Figure 2 , Figure 4 and Figure 6 In the initial state, the telescopic end of the cylinder 7 is in an extended state. When the lifting and blocking plate 6 at the corresponding position needs to be opened, the cylinder 7 moves with the T-shaped connecting block 8 to the bottom of the lifting and blocking plate 6. At this time, the T-shaped connecting block 8 just moves to the T-shaped slide groove 10 of the connecting plate 9 corresponding to the lifting and blocking plate 6, and then the telescopic end of the cylinder 7 contracts, and moves the lifting and blocking plate 6 downward through the T-shaped connecting block 8 and the connecting plate 9, thereby exposing the side through-groove 5 at the corresponding position.

[0036] Reference Figure 7 A plurality of balls 11 are rotatably arranged on both sides of each T-shaped connecting block 8. The balls 11 are arranged to reduce the friction between the T-shaped connecting block 8 and the T-shaped slide groove 10 during the movement.

[0037] Reference Figure 2 , Figure 5 and Figure 6 Two sliding guide rails 12 are symmetrically fixed to the inner bottom of the base platform 2. A sliding seat 13 is slidably arranged in each sliding guide rail 12, and each cylinder 7 is fixed to the upper end surface of the corresponding sliding seat 13.

[0038] The weight of the cylinder 7 and the T-shaped connecting block 8 is borne by the provided sliding seat 13 , and the cooperation between the sliding seat 13 and the sliding guide rail 12 enables the cylinder 7 to move below the ventilation duct 4 .

[0039] Limiting slide blocks 14 are fixed on both sides of each sliding seat 13 , and two limiting sliding grooves for matching with the corresponding limiting slide blocks 14 are symmetrically formed on the inner wall of each sliding guide rail 12 .

[0040] The cooperation between the limiting sliding block 14 and the limiting sliding groove ensures the stability of the sliding seat 13 during the movement.

[0041] Reference Figure 3 , Figure 4 and Figure 6 A plurality of pairs of L-shaped guide blocks 15 are fixed on the inner wall of each ventilation duct 4 , and there is a distance between the upper end of the L-shaped guide block 15 and the inner top of the ventilation duct 4 . A wiping layer 16 is fixed on the upper end surface of each lifting sealing plate 6 .

[0042] Reference Figure 3 , Figure 4 and Figure 6 When the lifting and blocking plate 6 at the corresponding position moves downward and opens, the side through groove 5 corresponding to the position is exposed to suck the smoke and dust. When the smoke and dust pass through the side through groove 5, the particles and other substances in the smoke and dust will enter the inner surface of the L-shaped guide block 15. When the lifting and blocking plate 6 moves upward and returns to its initial state to block the side through groove 5, it will drive the wiping layer 16 to move upward together, thereby pushing the dust and the like adhered to the inner surfaces of the two L-shaped guide blocks 15 upward. At this time, this part of the dust particles and impurities are still located on the upper end surface of the wiping layer 16. When the ventilation duct 4 is evacuated again, this part of the dust particles and impurities can be taken away.

[0043] Reference Figure 1 and Figure 2 Two movable seats 17 are symmetrically and movably arranged on the upper end surface of the base table 2, and a mounting seat 18 is movably arranged between the two movable seats 17. A laser cutting head is arranged on the lower end surface of the mounting seat 18. An electric guide rail used in conjunction with the movable seat 17 is arranged on the base table 2. This part of the structure is the existing technology. When the plate to be cut is placed on the receiving plate 3, the movable seat 17 and the mounting seat 18 cooperate to move, and cooperate with the laser cutting head to cut the workpiece.

[0044] Reference Figure 2 , Figure 5 and Figure 6 A connecting arm 19 is fixed to one side of each movable seat 17 , a fixing plate 20 is fixed to the upper end surface of each sliding seat 13 , and a plurality of intermediate plates 21 are fixed between the fixing plate 20 and the connecting arm 19 .

[0045] Reference Figure 2 , Figure 5 and Figure 6 A plurality of pressure sensors 22 are fixed to the upper end surface of each ventilation duct 4, a fixed block 23 is fixed to one side of each connecting arm 19, a U-shaped frame 24 is movably provided below the fixed block 23, a resistance wheel 25 is rotatably provided on the inner wall of the U-shaped frame 24, a plurality of guide rods 26 are fixed to the upper end surface of the U-shaped frame 24, the upper end of each guide rod 26 movably passes through the fixed block 23, a plurality of springs are fixed between the fixed block 23 and the U-shaped frame 24, each spring is movably sleeved on the outer surface of the guide rod 26, a controller for use with the pressure sensor 22 is provided in the base platform 2, in the initial state, each pressure sensor 22 is in a power-off state, and the pressure sensor 22 is only in a power-on state when the laser cutting head is ready to start working.

[0046] Reference Figure 2 , Figure 5 and Figure 6 During the movement of the movable seat 17, the connecting arm 19 will move together, thereby moving the movable seat 17 through the intermediate plate 21 and the fixed plate 20, so that the cylinder 7 can follow the movement, and during the movement of the connecting arm 19, the fixed block 23, the guide rod 26, the U-shaped frame 24 and the contact wheel 25 will move together. During the movement of the contact wheel 25, it will pass through the surface of each pressure sensor 22 (in the initial state, each pressure sensor 22 is in a power-off state, and only when the laser cutting head is ready to start working, the pressure sensor 22 is in a power-on state). At this time, the pressure sensor 22 will not generate an electrical signal. When the contact wheel 25 rolls on the upper end surface of the pressure sensor 22, the spring will be squeezed. Contraction, thereby applying a downward force to the U-shaped frame 24 and the resistance wheel 25. When the movable seat 17, the mounting seat 18 and the laser cutting head move to the processing position, the cylinder 7 and the T-shaped connecting block 8 also move to the bottom of the corresponding lifting and blocking plate 6. When the laser cutting head is ready to cut, each pressure sensor 22 is energized. At this time, the pressure sensor 22 exerted with force by the resistance wheel 25 produces an electrical signal to control the contraction of the telescopic end of the cylinder 7, prompting the T-shaped connecting block 8 and the connecting plate 9 to cooperate to move the lifting and blocking plate 6 corresponding to this position downward, and the diameter of the resistance wheel 25 is larger than the distance between the two pressure sensors 22, prompting the resistance wheel 25 to press two adjacent pressure sensors 22 at the same time to cooperate in the vacuum operation.

[0047] When the present invention is used, refer to Figure 1-Figure 3, place the plate to be cut on the receiving plate 3, and then the laser cutting machine body 1 cuts the plate. During the cutting process, under the action of the driving component, the lifting and blocking plate 6 at the corresponding position is moved downward to expose the corresponding side slot 5, and the smoke and dust generated during the processing are sucked out. Since the lifting and blocking plate 6 moves vertically up and down, the side area of ​​the ventilation duct 4 is occupied less, so that the interval area between adjacent side slots 5 is smaller (avoiding the existence of dead corners for exhaust), so that each side slot 5 can efficiently suck the smoke and dust at the corresponding position after being exposed;

[0048] Reference Figure 3 , Figure 4 and Figure 6 When the lifting and blocking plate 6 at the corresponding position moves downward and opens, the side slot 5 corresponding to the position is exposed to suck the smoke and dust. When the smoke and dust pass through the side slot 5, the particles and other substances in the smoke and dust will enter the inner surface of the L-shaped guide block 15. When the lifting and blocking plate 6 moves upward and returns to the initial state to block the side slot 5, it will drive the wiping layer 16 to move upward together, thereby pushing the dust and other substances adhering to the inner surfaces of the two L-shaped guide blocks 15 upward. At this time, this part of the dust particles and impurities are still located on the upper end surface of the wiping layer 16. When the ventilation duct 4 is evacuated again, this part of the dust particles and impurities can be taken away;

[0049] Reference Figure 2 , Figure 5 and Figure 6During the movement of the movable seat 17, the connecting arm 19 will move together, thereby moving the movable seat 17 through the intermediate plate 21 and the fixed plate 20, so that the cylinder 7 can follow the movement, and during the movement of the connecting arm 19, the fixed block 23, the guide rod 26, the U-shaped frame 24 and the contact wheel 25 will move together. During the movement of the contact wheel 25, it will pass through the surface of each pressure sensor 22 (in the initial state, each pressure sensor 22 is in a power-off state, and only when the laser cutting head is ready to start working, the pressure sensor 22 is in a power-on state). At this time, the pressure sensor 22 will not generate an electrical signal. When the contact wheel 25 rolls on the upper end surface of the pressure sensor 22, the spring will be squeezed. Contraction, thereby applying a downward force to the U-shaped frame 24 and the resistance wheel 25. When the movable seat 17, the mounting seat 18 and the laser cutting head move to the processing position, the cylinder 7 and the T-shaped connecting block 8 also move to the bottom of the corresponding lifting and blocking plate 6. When the laser cutting head is ready to cut, each pressure sensor 22 is energized. At this time, the pressure sensor 22 exerted with force by the resistance wheel 25 produces an electrical signal to control the contraction of the telescopic end of the cylinder 7, prompting the T-shaped connecting block 8 and the connecting plate 9 to cooperate to move the lifting and blocking plate 6 corresponding to this position downward, and the diameter of the resistance wheel 25 is larger than the distance between the two pressure sensors 22, prompting the resistance wheel 25 to press two adjacent pressure sensors 22 at the same time to cooperate in the vacuum operation.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automated laser cutting device with high efficiency in removing smoke and dust, comprising a laser cutting machine body (1), characterized in that: The laser cutting machine body (1) comprises a base platform (2), a plurality of receiving plates (3) are fixed on the inner wall of the base platform (2), two ventilation ducts (4) are symmetrically fixed on the inner wall of the base platform (2), the opposite surfaces of the two ventilation ducts (4) are provided with a plurality of side through grooves (5), the lower end surface of each ventilation duct (4) is movably penetrated by a plurality of lifting and blocking plates (6) used in conjunction with the corresponding side through grooves (5), a driving component used in conjunction with the lifting and blocking plates (6) is provided below each ventilation duct (4), and the ends of the two ventilation ducts (4) are connected to an external exhaust component.

2. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 1 is characterized in that: Each of the driving components comprises a cylinder (7) movably arranged below the corresponding ventilation duct (4); a T-shaped connecting block (8) is fixed to the end of the telescopic end of the cylinder (7); and a connecting plate (9) used in conjunction with the T-shaped connecting block (8) is fixed to the lower end of each lifting sealing plate (6).

3. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 2 is characterized in that: A T-shaped sliding groove (10) is provided through the side wall of each connecting plate (9), and the size of the T-shaped sliding groove (10) matches that of the T-shaped connecting block (8).

4. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 2 is characterized in that: A plurality of balls (11) are rotatably arranged on both sides of each T-shaped connecting block (8).

5. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 2 is characterized in that: Two sliding guide rails (12) are symmetrically fixed on the inner bottom of the base platform (2), a sliding seat (13) is slidably arranged in each sliding guide rail (12), and each cylinder (7) is fixed to the upper end surface of the corresponding sliding seat (13).

6. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 5 is characterized in that: A limiting slide block (14) is fixed on both sides of each sliding seat (13), and two limiting slide grooves for matching with the corresponding limiting slide blocks (14) are symmetrically provided on the inner wall of each sliding guide rail (12).

7. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 1 is characterized in that: A plurality of pairs of L-shaped guide blocks (15) are fixed on the inner wall of each ventilation duct (4), a distance exists between the upper end of the L-shaped guide block (15) and the inner top of the ventilation duct (4), and a wiping layer (16) is fixed on the upper end surface of each lifting sealing plate (6).

8. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 1 is characterized in that: Two movable seats (17) are symmetrically and movably arranged on the upper end surface of the base platform (2), a mounting seat (18) is movably arranged between the two movable seats (17), and a laser cutting head is arranged on the lower end surface of the mounting seat (18).

9. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 8, characterized in that: A connecting arm (19) is fixed on one side of each movable seat (17), a fixing plate (20) is fixed on the upper end surface of each sliding seat (13), and a plurality of intermediate plates (21) are fixed between the fixing plate (20) and the connecting arm (19).

10. The automatic laser cutting equipment with high efficiency in removing smoke and dust according to claim 9, characterized in that: A plurality of pressure sensors (22) are fixed to the upper end surface of each ventilation duct (4); a fixed block (23) is fixed to one side of each connecting arm (19); a U-shaped frame (24) is movably provided below the fixed block (23); a resisting wheel (25) is rotatably provided on the inner wall of the U-shaped frame (24); a plurality of guide rods (26) are fixed to the upper end surface of the U-shaped frame (24); the upper end of each guide rod (26) movably penetrates the fixed block (23); a plurality of springs are fixed between the fixed block (23) and the U-shaped frame (24); each spring is movably sleeved on the outer surface of the guide rod (26).

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