CN111014980A

CN111014980A - Laser cutting machine of clean production

Info

Publication number: CN111014980A
Application number: CN201911357181.2A
Authority: CN
Inventors: 杜龙生; 李孝文; 郑洁
Original assignee: Suzhou Shengtai Electric Power Co Ltd
Current assignee: Suzhou Shengtai Electric Power Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-17

Abstract

The invention relates to a laser cutting machine for clean production, which comprises a rack, a laser cutting head arranged on the rack in a sliding manner and a bearing frame sliding along the vertical direction, and is characterized in that: a sealing component is arranged above the frame, and a dust collecting component is arranged below the frame; a plurality of uniformly distributed bearing rods are arranged on the bearing frame; the sealing assembly comprises an installation frame connected with the rack and a sealing shell detachably connected to the installation frame, a material taking port is arranged on the installation frame, and a sealing cover plate for sealing the material taking port is hinged to the installation frame; the dust collecting component comprises a dust collecting hopper arranged below the bearing frame and a dust outlet pipe communicated with the dust collecting hopper, and the dust outlet pipe is communicated with a dust collecting fan. The invention provides a laser cutting machine for clean production, which can better reduce the emission of waste gas and waste smoke so as to carry out centralized treatment on the waste smoke and the waste gas and avoid the pollution to the environment.

Description

Laser cutting machine of clean production

Technical Field

The invention relates to the technical field of laser cutting equipment, in particular to a laser cutting machine for clean production.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach a melting point or a boiling point, and simultaneously the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal

At present, chinese patent application with publication number CN109732221A discloses a laser cutting device, wherein a transmission mechanism and a cutting mechanism are arranged on a machine tool, the transmission mechanism comprises a gantry and a fixed seat moving on the gantry, and the gantry is movably erected on two sides of the machine tool; the cutting mechanism is fixed on the fixed seat; the gantry is provided with a supporting mechanism, the supporting mechanism is arranged between two sides of the machine tool and is composed of a plurality of straight plates in vertical parallel arrangement, and each straight plate is provided with a sawtooth structure on the upper side.

The existing laser cutting device is usually of an open structure, so that the plate is convenient to assemble and disassemble, and the defect is that more waste gas and waste smoke are generated in the laser cutting process, so that the working environment is easily polluted.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide a laser cutting machine for clean production, which can better reduce the emission of waste gas and waste smoke so as to carry out centralized treatment on the waste gas and avoid the pollution to the environment.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a laser cutting machine of clean production, includes the frame, slides the laser cutting head that sets up in the frame and the carriage that slides along vertical direction, its characterized in that: a sealing component is arranged above the frame, and a dust collecting component is arranged below the frame;

a plurality of uniformly distributed bearing rods are arranged on the bearing frame;

the sealing assembly comprises a mounting frame connected with the rack and a sealing shell detachably connected to the mounting frame, a material taking port is arranged on the mounting frame, and a sealing cover plate for sealing the material taking port is hinged to the mounting frame;

the dust collecting component comprises a dust collecting hopper arranged below the bearing frame and a dust outlet pipe communicated with the dust collecting hopper, and the dust outlet pipe is communicated with a dust collecting fan.

By adopting the technical scheme, the bearing rod on the bearing frame is used for bearing the plate to be processed, and the sealing shell is used for covering the bearing frame, so that dust and waste gas generated when the plate is processed are prevented from escaping from the upper part of the frame; the material taking port is used for conveniently taking down the plate materials on the bearing frame and placing the plate materials on the bearing frame from the material taking port, and the sealing cover plate is used for sealing the material taking port, so that dust and waste gas are better prevented from escaping into a working environment; the dust collecting hopper is used for collecting some heavier dust, piece and the sheet material that is cut and falls down to centralized processing, the dust absorption fan can be with some dust and tiny piece pump drainage away through going out the dirt pipe, and then better assurance operational environment's cleanness.

The present invention in a preferred example may be further configured to: the side wall of the dust hopper is provided with a dust guide plate which is obliquely arranged towards the lower position in the middle of the dust hopper, a slag outlet is arranged below the dust hopper, and the dust hopper is detachably connected with a slag collecting box at the slag outlet.

Through adopting above-mentioned technical scheme, lead dust board can be better guide dust, piece and the sheet material that is cut and falls down and concentrate to the position of dust hopper middle below and from the slag notch fall to the collection sediment box in to more quick handle the waste residue, better assurance cleaner production.

The present invention in a preferred example may be further configured to: the slag removing machine is characterized in that a sealing coaming is arranged below the frame, a slag removing opening is formed in the sealing coaming, and a sealing door used for sealing the slag removing opening is arranged on the sealing coaming.

By adopting the technical scheme, the sealing coaming can further seal the frame, so that dust and waste gas are better prevented from escaping from the lower part of the frame, and the effect of clean production is further improved; the slag taking port is convenient for workers to take out the slag collecting box, so that waste slag in the slag collecting box is more convenient to clean; the sealing door is used for sealing the slag taking opening, and waste dust and waste gas are avoided.

The present invention in a preferred example may be further configured to: the slag outlet extends downwards to form a mounting frame, the slag collecting box is horizontally arranged in the mounting frame in a sliding mode, and the outer side wall of the slag collecting box is attached to the inner side wall of the mounting frame; the mounting frame is equipped with along the latch segment that vertical plane rotation set up towards the one side of getting the cinder notch, the latch segment is close to one side of mounting frame and the laminating setting of collection cinder box, one side that the cinder notch was got to collection cinder box orientation is equipped with the handle.

Through adopting above-mentioned technical scheme, the installing frame is used for holding the collection sediment box, and the latch segment is used for restricting the collection sediment box in the installing frame to the collection waste residue that collection sediment box can be more stable, the handle makes to get puts the collection sediment box more convenient.

The present invention in a preferred example may be further configured to: the sealing cover plate is made of a transparent acrylic plate, an opening and closing cylinder used for pushing the sealing cover plate to open is arranged on the rack, the cylinder body part of the opening and closing cylinder is hinged with the rack, and the piston rod part of the opening and closing cylinder is hinged with the sealing cover plate.

By adopting the technical scheme, the sealing cover plate is made of the transparent acrylic plate, so that a worker can timely know the processing condition of the plate through the sealing cover; the opening and closing cylinder is used for opening and closing the sealing cover plate, so that the sealing cover plate can be opened more conveniently.

The present invention in a preferred example may be further configured to: and a filter grid is arranged at the communication part of the dust outlet pipe and the dust collecting hopper.

Through adopting above-mentioned technical scheme, filter grille is used for with some great waste residue separation outside a dirt pipe, has avoided the waste residue to go out the dirt pipe and has blockked up for dust absorption work of carrying on that dust absorption fan can be stable.

The present invention in a preferred example may be further configured to: the dust outlet pipe is communicated with a dust suction pipe, the sealing coaming is provided with a yielding through hole for the dust suction pipe to pass through, a communicating hose is arranged between the dust suction pipe and the dust outlet pipe, and the communicating hose is made of flexible canvas.

Through adopting above-mentioned technical scheme, the hole of stepping down is used for supplying the dust absorption pipe to pass, and the intercommunication hose still can communicate the dust absorption pipe and go out the dirt pipe when making the carriage slide along vertical direction for the dust absorption fan can be more stable carry out the dust absorption.

The present invention in a preferred example may be further configured to: the lifting device is characterized in that at least three lifting screw rods are rotatably connected to the rack, the axis direction of each lifting screw rod is arranged along the vertical direction, lifting sliding blocks are matched with the lifting screw rods in a threaded mode, and the bearing frame is connected with the lifting sliding blocks.

By adopting the technical scheme, the lifting screw rod is used for driving the lifting slide block to slide along the vertical direction, so that the bearing frame and the dust collecting hopper are driven to slide along the vertical direction, the material to be processed with different heights can be conveniently applied, and the sliding of the dust collecting hopper can be better; at least three lifting screw rods enable the bearing frame to slide more stably.

The present invention in a preferred example may be further configured to: the four lifting screw rods are uniformly arranged at the four corners of the bearing frame, driven synchronous wheels are arranged at one ends, close to the bottom, of the four lifting screw rods, linkage synchronous belts used for enabling the four lifting screw rods to synchronously rotate are sleeved on the outer sides of the four driven synchronous wheels, and the linkage synchronous belts are matched with the four driven synchronous wheels simultaneously;

the lifting driving motor is arranged on the rack, a driving synchronous wheel is arranged on a main shaft of the lifting driving motor, and the driving synchronous wheel and any driven synchronous wheel are driven by a driving synchronous belt.

By adopting the technical scheme, the four lifting screw rods are arranged at the four corners of the bearing frame, so that the bearing frame can slide more stably; the cooperation of linkage hold-in range and four driven synchronizing wheel makes four lift lead screw synchronous rotations, further improvement the stability that the carriage slided, lift driving motor is used for driving the initiative synchronizing wheel and rotates to it rotates to more convenient drive lift lead screw.

The present invention in a preferred example may be further configured to: the sealed bounding wall has seted up the access hole near driving motor department, it has the access door that is used for sealing the access hole to articulate on the sealed bounding wall.

By adopting the technical scheme, the access hole is used for allowing a worker to enter the lower part of the bearing frame so as to conveniently overhaul the driving motor, so that the overhaul and maintenance of the equipment are more convenient, and the stable operation of the equipment is ensured; the access door is used for sealing the access hole, so that the equipment can keep a sealed state when in operation, waste gas, dust, debris and the like are prevented from escaping, and the pollution to the environment is better reduced.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the sealing shell and the sealing coaming can better seal the upper part and the lower part of the frame, thereby better avoiding the waste gas and dust from escaping into the working environment and enabling the production environment to be cleaner;

2. the dust collecting hopper can be better collect the waste residue to the collection sediment box, go out dust pipe and dust absorption fan can be better take out dust and waste gas pump and arrange so that centralized processing.

Drawings

FIG. 1 is a schematic structural view of the whole of the present embodiment;

FIG. 2 is a schematic structural diagram of the connection relationship between the lift bar and the supporting frame in the present embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic diagram of the X-direction driving structure and the Y-direction driving structure of the present embodiment;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

FIG. 6 is an enlarged schematic view of section C of FIG. 4;

FIG. 7 is an enlarged schematic view of portion D of FIG. 1;

FIG. 8 is a schematic view showing the construction of the dust collecting assembly of the present embodiment;

FIG. 9 is a schematic view showing the connection relationship between the slag collection hopper and the dust collection hopper according to the present embodiment;

FIG. 10 is an enlarged schematic view of section E of FIG. 9;

fig. 11 is an enlarged schematic view of portion F of fig. 9.

In the figure, 1, a frame; 2. a laser cutting head; 3. a bearing frame; 4. a seal assembly; 5. a dust collection assembly; 6. a carrier bar; 7. a mounting frame; 8. sealing the shell; 9. a material taking port; 10. sealing the cover plate; 11. a dust collecting hopper; 12. a dust outlet pipe; 13. a dust collection fan; 14. a dust guide plate; 15. a slag outlet; 16. a slag collection box; 17. sealing the enclosing plate; 18. a slag taking port; 19. a closing door; 20. installing a frame; 21. a locking block; 22. a handle; 23. opening and closing the air cylinder; 24. filtering the grating; 25. a dust collection pipe; 26. a yielding through hole; 27. a communication hose; 28. a lifting screw rod; 29. a lifting slide block; 30. a driven synchronizing wheel; 31. linking a synchronous belt; 32. a driving synchronizing wheel; 33. driving a synchronous belt; 34. an access hole; 35. an access door; 36. a support frame; 37. mounting grooves; 38. lifting the strip; 39. a support beam; 40. a Y-direction guide rail; 41. a Y-direction sliding block; 42. an X-direction guide rail; 43. mounting a plate; 44. an X-direction sliding block; 45. a Y-direction mounting base; 46. a Y-direction synchronizing wheel; 47. a Y-direction synchronous belt; 48. a Y-direction driving motor; 49. an X-direction mounting base; 50. an X-direction synchronizing wheel; 51. an X-direction synchronous belt; 52. an X-direction driving motor; 53. a lifting driving motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the laser cutting machine for clean production disclosed by the invention comprises a rack 1, a laser cutting head 2 and a bearing frame 3, wherein the laser cutting head 2 and the bearing frame 3 are arranged on the rack 1 in a sliding manner, the bearing frame 3 is arranged in the middle of the rack 1, and the bearing frame 3 is arranged in a sliding manner along the vertical direction; a sealing component 4 is arranged above the rack 1, and the sealing component 4 is used for covering a column above the rack 1 to prevent waste gas generated in the cutting process from escaping; a dust collection assembly 5 (refer to fig. 8) is provided under the frame 1, and the dust collection assembly 5 is used for collecting dust formed by cutting and dropped metal plates for centralized processing.

Referring to fig. 2 and 3, a supporting frame 36 is bolted to the inner side of the bearing frame 3, a plurality of mounting grooves 37 are uniformly formed in two long sides of the supporting frame 36 along the length direction of the supporting frame, and the mounting grooves 37 are arranged on one side of the supporting frame 36 far away from the bearing frame 3; can dismantle in the bearing frame 3 and be connected with the carrier bar 6, the both ends of carrier bar 6 are inserted and are established in mounting groove 37, carrier bar 6 one side integrated into one piece up has lift strip 38, lift strip 38 is transversal to personally submit the triangle-shaped, when will waiting the panel of cutting to place lift strip 38, panel is only a line with the contact surface of lifting strip 38, better avoid on piece and the dust that the panel was cut and produced are long-pending to lift strip 38 or carrier bar 6, so that piece and dust can be quick fall into in dust hopper 11.

Referring to fig. 4, a support beam 39 arranged in a sliding manner along the width direction of the frame 1 is arranged on the frame 1, Y-direction guide rails 40 are connected to both ends of the frame 1 in the length direction by bolts, and the Y-direction guide rails 40 are arranged along the width direction of the frame 1; y-direction sliding blocks matched with the Y-direction guide rails 40 in a sliding manner are arranged at two ends of the supporting cross beam 39; an X-direction guide rail 42 is connected to the supporting beam 39 through bolts, the X-direction guide rail 42 is arranged along the length direction of the supporting beam 39, an installation plate 43 is connected to the laser cutting head 2 through bolts, and an X-direction sliding block matched with the X-direction guide rail 42 in a sliding mode is connected to the installation plate 43 through bolts.

Referring to fig. 4 and 5, two ends of the frame 1, which are located on the Y-direction guide rail 40, are all connected with Y-direction mounting seats 45 through bolts, four Y-direction mounting seats 45 are all connected with Y-direction synchronizing wheels 46 in a rotating manner, Y-direction synchronizing wheels 46 located on two ends of the same Y-direction guide rail 40 are sleeved with Y-direction synchronizing belts 47, the upper side sections of the Y-direction synchronizing belts 47 are connected with the supporting cross beam 39 through bolts, and the lower side sections of the Y-direction synchronizing belts 47 penetrate through the middle of the supporting cross beam 39; the two coaxial Y-direction synchronizing wheels 46 are connected through a synchronous connecting shaft, and two ends of the synchronous connecting shaft are respectively connected with the Y-direction synchronizing wheels 46 through couplers; a Y-direction driving motor 48 is fixed on the rack 1, and the Y-direction driving motor 48 drives a synchronous connecting shaft to rotate through a synchronous belt; x-direction mounting seats 49 are arranged at two ends, close to the X-direction guide rail 42, of the supporting cross beam 39, the X-direction mounting seats 49 are connected to the supporting cross beam 39 through bolts, X-direction synchronizing wheels 50 are connected to the two X-direction mounting seats 49 in a rotating mode, and X-direction synchronizing belts 51 are sleeved on the two X-direction synchronizing wheels 50; the lower side section of the X-direction synchronous belt 51 is connected with the mounting plate 43 through a bolt, the support beam 39 is connected with an X-direction driving motor 52 through a bolt, and the X-direction driving motor 52 drives the X-direction synchronous belt 51 to rotate through a synchronous belt and a synchronous wheel.

Referring to fig. 1 and 7, the sealing assembly 4 comprises a mounting frame 7 and a sealing shell 8, the mounting frame 7 is welded on the frame 1, and the sealing shell 8 is bolted on the mounting frame 7; a material taking port 9 is formed in the mounting frame 7, a sealing cover plate 10 for sealing the material taking port 9 is hinged to the mounting frame 7, and the sealing cover plate 10 is made of a transparent acrylic plate so that a worker can conveniently observe the processing condition of the plate through the sealing cover plate 10; an opening and closing cylinder 23 for opening and closing the sealing cover plate 10 is arranged on the frame 1, the cylinder body part of the opening and closing cylinder 23 is hinged with the frame 1, and the piston rod part of the opening and closing cylinder 23 is hinged with the sealing cover plate 10; the piston rod of the opening and closing cylinder 23 extends out to push the sealing cover plate 10 to rotate, so that the sealing cover plate 10 is opened; the piston rod of the opening and closing cylinder 23 is retracted, and the sealing cover plate 10 can be closed.

Referring to fig. 8, the dust collecting assembly 5 includes a dust hopper 11 and a dust outlet pipe 12, the dust hopper 11 is fixedly disposed below the carrying frame 3 (refer to fig. 4), the dust hopper 11 is in a bucket shape with a large top and a small bottom, four walls of the dust hopper 11 are four dust guide plates 14 welded together, and the four dust guide plates 14 are disposed obliquely toward a middle lower position of the dust hopper 11; the dust outlet pipe 12 is fixedly arranged on the side wall of the dust hopper 11, the dust outlet pipe 12 is communicated with the interior of the dust hopper 11, a filter grid 24 is welded at the communication position of the dust outlet pipe 12 and the dust hopper 11, and the filter grid 24 can block some cut larger fragments and plates; one end of the dust outlet pipe 12, which is far away from the dust collecting hopper 11, is communicated with a dust collecting fan 13, the dust collecting fan 13 generates suction force to suck dust and waste gas into the dust outlet pipe 12, so that the dust and the waste gas are subjected to centralized treatment in the following process, and pollution to a working environment and an external environment caused by the dust and the waste gas is avoided.

Referring to fig. 9 and 10, a square slag outlet 15 (refer to fig. 8) is formed below the dust hopper 11, a mounting frame 20 extends downwards from the slag outlet 15, a slag collection box 16 is connected to the mounting frame 20 in a sliding manner, an opening of the slag collection box 16 is aligned with the slag outlet 15, and cut chips and plates can be transferred into the slag collection box 16 through the slag outlet 15; a U-shaped handle 22 is welded on the slag collecting box 16; the top of installing frame 20 side is rotated and is connected with latch segment 21, and behind slag collecting box 16 pushed into installing frame 20, latch segment 21 towards one side of installing frame 20 and slag collecting box 16 side parallel and level for latch segment 21 rotates to with slag collecting box 16 side laminating back, and latch segment 21 can restrict slag collecting box 16 in installing frame 20, so that the stable piece and the panel that the cutting dropped of collecting box 16.

Referring to fig. 4 and 9, a sealing coaming 17 is welded below the frame 1, a slag taking port 18 is formed in one side of the sealing coaming 17, which is positioned on a handle of the slag collecting box 16, and a worker can conveniently take out the slag collecting box 16 through the slag taking port 18 so as to clean the slag collecting box 16 in time; the sealing coaming 17 is hinged with a sealing door 19 at the slag taking hole 18, and the sealing door is used for sealing the slag hole 15, so that dust, debris and waste gas are better prevented from escaping.

Referring to fig. 9 and 11, four lifting screws 28 are rotatably connected to the frame 1, and the axial directions of the four lifting screws 28 are arranged along the vertical direction; the four lifting screw rods 28 are uniformly arranged at four corners of the bearing frame 3 (refer to fig. 2), lifting slide blocks 29 are welded at the four corners of the bearing frame, and the lifting slide blocks 29 are in threaded fit with the lifting screw rods 28. Driven synchronous wheels 30 are fixed at one ends of the four lifting screw rods 28 close to the bottom, linkage synchronous belts 31 are sleeved on the four driven synchronous wheels 30, the linkage synchronous belts 31 are matched with the four driven synchronous wheels 30 at the same time, and the linkage synchronous belts 31 can drive the four lifting screw rods 28 to synchronously rotate; the position of the frame 1 close to one of the driven synchronizing wheels 30 is provided with a lifting driving motor 53, a main shaft of the lifting driving motor 53 is connected with a driving synchronizing wheel 32 through a key, the driving synchronizing wheel 32 drives one of the driven synchronizing wheels 30 to rotate through a driving synchronizing belt 33, the lifting driving motor 53 can drive four lifting lead screws 28 to synchronously rotate during working, so that the bearing frame 3 is driven to slide along the vertical direction, products to be processed with different heights can be conveniently placed on the bearing frame 3, the dust hopper 11 below the bearing frame 3 can also shake, and chips and plates in the dust hopper 11 can rapidly and thoroughly fall into the slag collecting box 16.

Referring to fig. 4, the access opening 34 is opened at a position, close to the lifting driving motor 53, of the sealing enclosing plate 17, the access door 35 is hinged to the sealing enclosing plate 17, and the access door 35 is used for closing the access opening 34.

Referring to fig. 8, an abdicating through hole 26 is formed in the sealing surrounding plate 17 near the dust outlet pipe 12, a dust suction pipe 25 is inserted into the abdicating through hole 26, the dust suction pipe 25 is fixedly connected with the sealing surrounding plate 17, a communicating hose 27 is arranged between the dust suction pipe 25 and the dust outlet pipe 12, the communicating hose 27 communicates the dust suction pipe 25 with the dust outlet pipe 12, and the communicating hose is made of flexible canvas; the dust suction fan 13 communicates with the dust suction pipe 25.

The implementation principle of the embodiment is as follows:

1. firstly, a plate is placed on the lifting strip 38, the lifting driving motor 53 is started, and the bearing frame 3 is adjusted to a proper height;

2. then, the piston rod of the opening and closing cylinder 23 is recovered, and the sealing cover plate 10 is covered on the mounting frame 7;

3. then, according to the shape of the product to be processed, starting the X-direction driving motor 52 and the Y-direction driving motor 48, and simultaneously starting the dust collection fan 13;

4. during the processing, the generated dust and waste gas are sucked from the dust suction pipe 25 by the dust suction fan 13 to the dust treatment equipment outside the frame 1 for treatment; the produced debris and some of the slab cut off fall into the dump box 16.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a laser cutting machine of clean production, includes frame (1), the laser cutting head (2) of setting in frame (1) that slides and bearing frame (3) that slide along vertical direction, its characterized in that: a sealing component (4) is arranged above the frame (1), and a dust collecting component (5) is arranged below the frame (1);

a plurality of evenly distributed bearing rods (6) are arranged on the bearing frame (3);

the sealing assembly (4) comprises a mounting frame (7) connected with the rack (1) and a sealing shell (8) detachably connected to the mounting frame (7), a material taking opening (9) is formed in the mounting frame (7), and a sealing cover plate (10) used for sealing the material taking opening (9) is hinged to the mounting frame (7);

the dust collection assembly (5) comprises a dust collection hopper (11) arranged below the bearing frame (3) and a dust outlet pipe (12) communicated with the dust collection hopper (11), and the dust outlet pipe (12) is communicated with a dust collection fan (13).

2. A cleanly produced laser cutting machine according to claim 1, characterized in that: the side wall of the dust hopper (11) is provided with a dust guide plate (14) which is obliquely arranged towards the lower position in the middle of the dust hopper (11), a slag outlet (15) is arranged below the dust hopper (11), and the position of the dust hopper (11) at the slag outlet (15) is detachably connected with a slag collecting box (16).

3. A cleanly produced laser cutting machine according to claim 2, characterized in that: a sealing enclosing plate (17) is arranged below the frame (1), a slag taking opening (18) is formed in the sealing enclosing plate (17), and a sealing door (19) used for sealing the slag taking opening (18) is arranged on the sealing enclosing plate (17).

4. A cleanly produced laser cutting machine according to claim 3, characterized in that: the slag outlet (15) extends downwards to form a mounting frame (20), the slag collecting box (16) is horizontally arranged in the mounting frame (20) in a sliding mode, and the outer side wall of the slag collecting box (16) is attached to the inner side wall of the mounting frame (20); installing frame (20) are equipped with along vertical plane rotation setting's latch segment (21) towards the one side of getting slag notch (18), one side that latch segment (21) are close to installing frame (20) sets up with collection slag box (16) laminating, collection slag box (16) are equipped with handle (22) towards the one side of getting slag notch (18).

5. A cleanly produced laser cutting machine according to claim 1, characterized in that: the sealing cover plate (10) is made of a transparent acrylic plate, an opening and closing cylinder (23) used for pushing the sealing cover plate (10) to be opened is arranged on the rack (1), the cylinder body part of the opening and closing cylinder (23) is hinged to the rack (1), and the piston rod part of the opening and closing cylinder (23) is hinged to the sealing cover plate (10).

6. A cleanly produced laser cutting machine according to claim 1, characterized in that: a filtering grid (24) is arranged at the communication part of the dust outlet pipe (12) and the dust hopper (11).

7. A cleanly produced laser cutting machine according to claim 3, characterized in that: go out the intercommunication on dirt pipe (12) and have dust absorption pipe (25), offer on sealed bounding wall (17) and supply the dust absorption pipe (25) through-hole (26) of stepping down, be equipped with between dust absorption pipe (25) and the play dirt pipe (12) and communicate hose (27), communicate hose (27) adopt flexible canvas to make.

8. A cleanly produced laser cutting machine according to claim 1, characterized in that: the automatic lifting device is characterized in that at least three lifting screw rods (28) are rotatably connected to the rack (1), the axis direction of the lifting screw rods (28) is arranged along the vertical direction, lifting sliding blocks (29) are matched with the lifting screw rods (28) in a threaded mode, and the bearing frame (3) is connected with the lifting sliding blocks (29).

9. A cleanly produced laser cutting machine according to claim 8, characterized in that: four lifting screw rods (28) are arranged, the four lifting screw rods (28) are uniformly arranged at four corners of the bearing frame (3), driven synchronizing wheels (30) are arranged at one ends, close to the bottom, of the four lifting screw rods (28), synchronous belts used for enabling the four lifting screw rods (28) to synchronously rotate are sleeved on the outer sides of the four driven synchronizing wheels (30), and the synchronous belts are matched with the four driven synchronizing wheels (30) at the same time;

the lifting and descending mechanism is characterized in that a lifting and descending driving motor (53) is arranged on the rack (1), a driving synchronous wheel (32) is arranged on a main shaft of the lifting and descending driving motor (53), and the driving synchronous wheel (32) and any driven synchronous wheel (30) are driven through a driving synchronous belt (33).

10. A cleanly produced laser cutting machine according to claim 9, characterized in that: the access hole (34) is opened at the position, close to the lifting driving motor (53), of the sealing enclosing plate (17), and the access door (35) used for sealing the access hole (34) is hinged to the sealing enclosing plate (17).