Laser engraving machine for manufacturing print advertisements

Abstract

The invention relates to the technical field of laser engraving, and discloses a laser engraving machine for manufacturing print advertisements, which comprises a workbench, a bracket is arranged at the top of the workbench, and dust suction ports are formed in the bracket at equal intervals. When the area of a carving area is smaller than that of a dust suction port area, the supporting plate and the plane penetrate through the corresponding dust suction port to support the carving area during carving, and during subsequent carving and cutting, a plate in the area is supported, so that the bending condition is avoided; and moreover, due to the fact that other dust suction ports are not closed, extraction of waste gas in the carving process is not affected, slag accumulation on the inner sides of the dust suction ports and the plane can be avoided, the situation that the plane abuts against the slag to eject the plate to deform is avoided, and the follow-up carving quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of laser engraving, and in particular relates to a laser engraving machine for producing plane advertisements. Background Art

[0002] Laser engraving machines are primarily based on the thermal and photochemical effects of lasers. After the laser beam is focused, its energy is highly concentrated in a tiny area on the surface of the material being processed, causing that area to reach a high temperature instantly. The material quickly melts, vaporizes, or undergoes a chemical reaction, thereby removing part of the material and achieving the desired engraving or cutting effect.

[0003] When an existing laser engraving machine is in use, a dust suction port is provided on the grid plate used to support the plate. The exhaust gas generated during engraving is treated by a dust suction device arranged in the laser engraving machine in conjunction with the dust suction port. If the engraved plate is a thin metal plate and the engraving area is smaller than the area of ​​the dust suction port, during the engraving process, as the engraving is about to be completed, due to the gravity of the plate in the engraving and cutting area itself, the cut part of the plate in the engraving and cutting area will fall downward, causing the plate in the engraving and cutting area to bend downward with the uncut area (i.e., the area connected to the plate) as a fulcrum. When engraving to the uncut area, due to the bending of the plate in the cutting area, the laser cannot be perpendicular to the plate in the cutting area, and the engraved and cut plate will have a bevel on one side, which makes the quality of this engraved and cut part of the plate problematic, thereby affecting the subsequent reprocessing of this part of the engraved plate.

[0004] Therefore, it is necessary to invent a laser engraving machine for printing and printing advertisements to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a laser engraving machine for producing plane advertisements to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a laser engraving machine for producing graphic advertisements, comprising a workbench, a bracket provided on the top of the workbench, dust suction ports equidistantly provided on the bracket, symmetrically formed long slots on the top of the workbench, a movable block provided in the long slots, a laser engraving assembly connected to the movable block, a drive assembly for driving the movable block in the long slots, and a support assembly provided on the workbench for supporting the engraving area of ​​the workpiece located at the dust suction port;

[0007] The support assembly includes: a movable trough, an iron plate, a support plate, and a lifting assembly for driving the iron plate to move up and down;

[0008] The movable groove is opened on the inner wall of the workbench and is connected to the long groove. The movable groove is arranged corresponding to the dust suction port. The width of the movable groove is consistent with the width of the dust suction port. The iron plate is located in the movable groove and is connected to the support plate.

[0009] Furthermore, the lifting assembly includes: a limiting rod, a first spring, and a magnet fixedly connected to the bottom of the moving block;

[0010] The limiting rod is fixedly connected to the top of the iron plate, the top of the workbench is provided with a limiting hole corresponding to the limiting rod, the limiting rod is located in the limiting hole, and the first spring is sleeved outside the limiting rod.

[0011] Furthermore, the driving assembly includes: a screw rod and a motor;

[0012] The screw is rotatably installed in the long slot, the moving block is threadedly sleeved on the outside of the screw, the motor is fixedly connected to the top of the workbench and the end of its output shaft is fixedly connected to one end of the screw.

[0013] Furthermore, both ends of the support plate are fixedly connected with a shaft rod, one end of the shaft rod is rotatably mounted on the corresponding iron plate, the bottom of the support plate is provided with a flat surface, and the shaft rod is provided with a rotating component outside for driving its rotation.

[0014] Furthermore, the rotating assembly includes: a gear, a torsion spring, and a rack fixedly sleeved on the outside of one side of the shaft;

[0015] The rack is fixedly mounted on the bottom wall of the workbench, the rack is meshed with the gear, and the two ends of the torsion spring are fixedly connected to the iron plate and the gear respectively.

[0016] Furthermore, vertical grooves are symmetrically provided on the workbench, a carrier plate is fixedly installed in the vertical grooves, both sides of the bracket are slidably installed in the corresponding vertical grooves, a plurality of vertical rods are fixedly installed on the top of the bracket, the vertical rods pass through the carrier plate, a second spring is provided on the outer sleeve of the vertical rods, an electromagnet is fixedly installed on the top wall of the vertical groove, and the material of the vertical rods is iron.

[0017] Furthermore, when the iron plate rises to the highest point, the plane can be flush with the top of the bracket, and the size of the plane is adapted to the size of the dust suction port.

[0018] Furthermore, the laser engraving assembly includes: a connecting plate, an electric slide, and a laser engraving gun;

[0019] The connecting plate is fixedly connected to the top of the moving block, and one end of the connecting plate close to the electric slide is fixedly connected to the electric slide. The laser engraving gun is fixedly connected to the slider of the electric slide, and the center position of the laser engraving gun and the center position of the moving block are in the same vertical horizontal plane.

[0020] The technical effects and advantages of the present invention are as follows:

[0021] 1. The present invention can achieve that when the area of ​​the engraving area is smaller than the area of ​​the dust suction port area, the engraving area can be supported by the support plate and the plane passing through the corresponding dust suction port during engraving. During subsequent engraving and cutting, the plate in this area will not bend due to the support, thereby ensuring that the engraved and cut plate will not have beveled edges, ensuring the engraving quality. In addition, since the other dust suction ports are not closed, it will not affect the extraction of exhaust gas during the engraving process.

[0022] 2. The present invention can avoid the accumulation of slag inside the suction port and on the surface, so that the surface will not be deformed by the slag, thereby ensuring the subsequent engraving quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the laser engraving machine for printing flat advertisements according to the embodiment of the present invention is shown. Figure 1 ;

[0024] Figure 2 A schematic cross-sectional view of a laser engraving machine for producing graphic advertisements according to an embodiment of the present invention is shown;

[0025] Figure 3 The embodiment of the present invention is shown Figure 2 A in the middle is an enlarged structural diagram;

[0026] Figure 4 A schematic structural diagram showing a portion of the structure of an embodiment of the present invention;

[0027] Figure 5 The embodiment of the present invention is shown Figure 4 The enlarged structural diagram at B in the middle;

[0028] Figure 6 The structure of the laser engraving machine for printing flat advertisements according to the embodiment of the present invention is shown. Figure 2 ;

[0029] In the figure: 1. Workbench; 2. Bracket; 3. Dust suction port; 4. Moving block; 5. Screw; 6. Motor; 7. Movable slot; 8. Iron plate; 9. Support plate; 10. Limit rod; 11. First spring; 12. Magnet; 13. Shaft; 14. Gear; 15. Torsion spring; 16. Rack; 17. Plane; 18. Carrier plate; 19. Vertical rod; 20. Second spring; 21. Electromagnet; 22. Connecting plate; 23. Electric slide; 24. Laser engraving gun. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides a laser engraving machine for producing plane advertisements, such as Figures 1 to 6 As shown, it includes a workbench 1, a bracket 2 is provided on the top of the workbench 1, and dust suction ports 3 are equidistantly provided on the bracket 2. A long slot is symmetrically opened on the top of the workbench 1, and a moving block 4 is provided in the long slot. The moving block 4 is connected to a laser engraving assembly, and a driving assembly for driving the moving block 4 is provided in the long slot. The workbench 1 is provided with a support assembly for supporting the engraving area of ​​the workpiece located at the dust suction port 3;

[0032] The support assembly includes: a movable groove 7, an iron plate 8, a support plate 9, and a lifting assembly for driving the iron plate 8 to move up and down. The bracket 2 and the support plate 9 are made of steel.

[0033] The movable groove 7 is opened on the inner wall of the workbench 1 and is connected to the long groove. The movable groove 7 is arranged corresponding to the dust suction port 3. The width of the movable groove 7 is consistent with the width of the dust suction port 3. The iron plate 8 is located in the movable groove 7 and is connected to the support plate 9.

[0034] When in use, place the external exhaust equipment under the bracket 2, and the exhaust gas generated during engraving can be extracted through the suction port 3 by the exhaust equipment. When engraving, place the plate on the bracket 2, and move the moving block 4 and the laser engraving assembly through the driving assembly, and laser engrave the plate through the laser engraving assembly. If the engraved plate is a thin metal plate and the engraving area is smaller than the area of ​​the suction port 3, during the engraving process, as the engraving is about to be completed, due to the gravity of the plate in the engraving and cutting area itself, the cut part of the plate in the engraving and cutting area will fall down, causing the plate in the engraving and cutting area to bend downward with the uncut area, that is, the area connected to the plate, as the fulcrum. When engraving to the uncut area, due to the bending of the plate in the cutting area, the laser cannot be perpendicular to the plate in the cutting area, thereby causing the engraving to be cut. The plate has a bevel on one side, which causes problems with the quality of the carved and cut plate, thereby affecting the subsequent reprocessing of this carved plate. Therefore, with the movement of the moving block 4, when the moving block 4 moves to the two sides of the dust suction port 3 corresponding to the carving area, the lifting component is cooperated to drive the iron plate 8 corresponding to the dust suction port 3 to rise, thereby bringing the support plate 9 up, so that the support plate 9 enters the dust suction port 3, so that the support plate 9 can fit the carving and cutting area of ​​the plate to support the plate in the carving and cutting area. Therefore, during subsequent carving and cutting, the plate in this area will not bend due to the support, thereby ensuring that the carved and cut plate will not have a bevel, ensuring the carving quality, and since the other dust suction ports 3 are not closed, it will not affect the extraction of exhaust gas during the carving process.

[0035] like Figure 2 、 Figure 3 and Figure 6 As shown, the lifting assembly includes: a limiting rod 10, a first spring 11, and a magnet 12 fixedly connected to the bottom of the moving block 4;

[0036] The limiting rod 10 is fixedly connected to the top of the iron plate 8. The top of the workbench 1 is provided with a limiting hole corresponding to the limiting rod 10. The limiting rod 10 is located in the limiting hole. The first spring 11 is sleeved outside the limiting rod 10. The width of the magnet 12 is consistent with the width of the movable slot 7. When any part of the magnet 12 appears above the movable slot 7, it can rely on its own magnetic force to attract the iron plate 8 to rise to the highest point.

[0037] The moving block 4 moves with the magnet 12. When the moving block 4 moves to both sides of the dust suction port 3 corresponding to the engraving area, the magnet 12 is located there, thereby attracting the iron plate 8 below it. The iron plate 8 rises and moves with the support plate 9. At the same time, the iron plate 8 compresses the first spring 11 to deform it and generate a force, so that the support plate 9 is inserted into the dust suction port 3 to support the engraving and cutting area of ​​the plate. During the engraving process, since the engraving area is within the range of the dust suction port 3, when the moving block 4 moves with the magnet 12, the magnet 12 can always have a part of the area above the iron plate 8, so that the iron plate 8 can be continuously attracted and located at the highest point, thereby ensuring that the support plate 9 is stationary. When the engraving is completed, the moving block 4 is reset. At this time, the magnet 12 is reset and leaves the top of the iron plate 8. The first spring 11 releases the force and resets the iron plate 8 and the support plate 9.

[0038] like Figure 1 As shown, the driving assembly includes: a screw rod 5 and a motor 6;

[0039] The screw rod 5 is rotatably installed in the long slot, the moving block 4 is threadedly sleeved on the outside of the screw rod 5, and the motor 6 is fixedly connected to the top of the workbench 1 and the end of its output shaft is fixedly connected to one end of the screw rod 5.

[0040] When the output shaft of the motor 6 rotates forward or reverse, it can drive the screw rod 5 to rotate accordingly, and then drive the moving block 4 to move along its surface.

[0041] like Figures 3 to 5 As shown, both ends of the support plate 9 are fixedly connected with a shaft 13, one end of the shaft 13 is rotatably mounted on the corresponding iron plate 8, a plane 17 is provided at the bottom of the support plate 9, and a rotating component is provided outside the shaft 13 for driving its rotation.

[0042] With use, the slag flying out during the engraving process will pass through the various dust suction ports 3 and fall on the top of the support plate 9 below, causing accumulation over a long period of time. When the accumulation is too much, when the support plate 9 rises to support the plate, the accumulated slag cooperates with the support plate 9 to deform the top of the thin metal plate, affecting the subsequent engraving. Therefore, when the support plate 9 does not rise, the plane 17 used for support faces downward, so that the slag will not fall on the plane 17. When the support plate 9 rises, the rotating assembly drives the shaft 13 to rotate with the support plate 9, so that the plane 17 is rotated upward, and then the plane 17 enters the dust suction port 3, and finally fits with the surface of the plate to support it. At this time, there is no slag on the plane 17, so the top of the plate will not be deformed.

[0043] like Figures 3 to 5 As shown, the rotating assembly includes: a gear 14 fixedly sleeved on the outside of one side of the shaft 13, a torsion spring 15, and a rack 16;

[0044] The rack 16 is fixedly mounted on the bottom wall of the workbench 1 , and the rack 16 is engaged with the gear 14 . The two ends of the torsion spring 15 are fixedly connected to the iron plate 8 and the gear 14 respectively.

[0045] The iron plate 8 rises, carrying the shaft 13 and the support plate 9 with it. At this time, the gear 14 rotates forward along the rack 16, causing the torsion spring 15 to gradually reset. When the gear 14 leaves the rack 16, the torsion spring 15 resets, and the plane 17 rotates upward. Subsequently, the torsion force of the torsion spring 15 is used to maintain the shaft 13 and the support plate 9 from deflection, thereby ensuring that the plane 17 enters the dust suction port 3 upward. When the iron plate 8 descends, the gear 14 engages with the rack 16, causing the shaft 13 and the support plate 9 to reverse as the gear 14 descends, and at the same time, the torsion spring 15 is twisted to cause its torsional deformation to generate a force, and finally the plane 17 rotates downward.

[0046] like Figure 3 As shown, vertical grooves are symmetrically provided on the workbench 1, in which a carrier plate 18 is fixedly installed, and both sides of the bracket 2 are slidably installed in the corresponding vertical grooves. A plurality of vertical rods 19 are fixedly installed on the top of the bracket 2, and the vertical rods 19 pass through the carrier plate 18. A second spring 20 is provided on the outer sleeve of the vertical rod 19, and an electromagnet 21 is fixedly installed on the top wall of the vertical groove. The material of the vertical rod 19 is iron. The weight of the bracket 2 and the elastic force of the second spring 20 are sufficient to keep the bracket 2 stationary when it is resisted by the iron plate 8.

[0047] Before engraving, the electromagnet 21 is lowered and energized to make it magnetic, so that the vertical rod 19 is attracted to carry the bracket 2 up, and the bracket 2 cooperates with the carrier plate 18 to compress the second spring 20 to deform it and generate a force. Then the electromagnet 21 is powered off to make it lose its magnetism. The second spring 20 releases the force and carries the bracket 2 down, so that the bracket 2 collides with the bottom wall of the vertical groove and vibrates. Subsequently, the electromagnet 21 is intermittently energized and deenergized to achieve continuous vibration of the bracket 2, so that the slag attached to the dust suction port 3 can be shaken off and cleaned, to avoid the slag moving with it to conflict with the bottom of the plate when the plane 17 rises, thereby deforming the top of the plate.

[0048] like Figure 4 As shown, when the iron plate 8 rises to the highest point, the plane 17 can be flush with the top of the bracket 2 , and the size of the plane 17 is adapted to the size of the dust suction port 3 .

[0049] This allows the plane 17 to better support the engraving area of ​​the plate.

[0050] like Figure 1 As shown, the laser engraving assembly includes: a connecting plate 22, an electric slide 23, and a laser engraving gun 24;

[0051] The connecting plate 22 is fixedly connected to the top of the moving block 4, and one end of the connecting plate 22 close to the electric slide 23 is fixedly connected to the electric slide 23. The laser engraving gun 24 is fixedly connected to the slider of the electric slide 23. The center position of the laser engraving gun 24 and the center position of the moving block 4 are in the same vertical horizontal plane.

[0052] The moving block 4 moves with the connecting plate 22 and the electric slide 23, so that the matching slider moves with the laser engraving gun 24, and engraving and cutting are performed by the laser engraving gun 24. The center position of the laser engraving gun 24 and the center position of the moving block 4 are in the same vertical horizontal plane, so that the magnet 12 can be located above the movable groove 7 on both sides of the dust suction port 3 corresponding to the engraving area of ​​the plate, thereby ensuring the attraction of the iron plate 8, and then ensuring that the support plate 9 and the plane 17 can support the engraving area of ​​the plate.

[0053] Working principle: When in use, place the external exhaust device under the bracket 2, and the exhaust gas generated during engraving can be extracted through the exhaust device through the suction port 3. When engraving, place the plate on the bracket 2, and move the moving block 4 and the laser engraving component through the driving component to perform laser engraving on the plate. If the engraved plate is a thin metal plate and the engraving area is smaller than the area of ​​the suction port 3, during the engraving process, as the engraving is about to be completed, due to the gravity of the plate in the engraving and cutting area, the cut part of the plate in the engraving and cutting area will fall down, causing the plate in the engraving and cutting area to be uncut. The area connected to the plate is used as a fulcrum and bends downward. When engraving to the uncut area, due to the bending of the plate in the cutting area, the laser cannot be perpendicular to the plate in the cutting area, and the engraved and cut plate has a bevel on one side, which makes the quality of the engraved and cut part of the plate problematic, thereby affecting the subsequent reprocessing of this part of the engraved plate. Therefore, as the moving block 4 moves, the moving block 4 moves with the magnet 12. When the moving block 4 moves to the two sides of the suction port 3 corresponding to the engraving area, the magnet 12 is located there, thereby pressing the iron plate 8 below it. The iron plate 8 is attracted, and the support plate 9 moves with it. At the same time, the iron plate 8 compresses the first spring 11 to deform it and generate a force. The iron plate 8 rises and brings the shaft 13 and the support plate 9 up. At this time, the gear 14 rotates forward along the rack 16, so that the torsion spring 15 that has been torsionally deformed is gradually reset. When the gear 14 leaves the rack 16, the torsion spring 15 is reset, and the plane 17 rotates upward. Subsequently, the torsion force of the torsion spring 15 is used to maintain the shaft 13 and the support plate 9 from deflection, thereby ensuring that the plane 17 enters the dust suction port 3 upward, and finally makes the plane 17 on the support plate 9 fit the engraving and cutting area of ​​the plate. The plate in the engraving and cutting area is supported, so during subsequent engraving and cutting, the plate in this area will not bend due to the support, thereby ensuring that the engraved and cut plate will not have beveled edges, ensuring the engraving quality, and since the other dust suction ports 3 are not closed, it will not affect the extraction of exhaust gas during the engraving process. During the engraving process, since the engraving area is within the range of the dust suction port 3, when the moving block 4 moves with the magnet 12, a part of the magnet 12 can always be above the iron plate 8, so that the iron plate 8 can be continuously attracted and located at the highest point, thereby ensuring that the support plate 9 is stationary;After the engraving is completed, the moving block 4 is reset, so that the magnet 12 leaves the iron plate 8, and the first spring 11 releases the force to bring the iron plate 8 down. When the iron plate 8 drops, the gear 14 is engaged with the rack 16, so that as the gear 14 drops, the shaft 13 and the support plate 9 are reversed, and the torsion spring 15 is twisted to torsionally deform it to generate a force, and finally the plane 17 rotates to face downward. As it is used, the slag flying out during the engraving process will pass through the various dust suction ports 3 and fall on the top of the support plate 9 below, which will accumulate over time. When there is too much accumulation, when the support plate 9 rises to support the plate, the accumulated slag cooperates with the support plate 9 to deform the top of the thin metal plate, which affects the subsequent engraving. Therefore, when the support plate 9 does not rise, the plane 17 used for support faces downward, so that the slag will not fall on the plane 17. When the support plate 9 rises When the plane 17 rotates upward, it will eventually fit the surface of the plate to support it. At this time, there is no slag on the plane 17, so the top of the plate will not be deformed. Before engraving, the electromagnet 21 is lowered and energized to make it magnetic, so that the vertical rod 19 and the bracket 2 are lifted up. The bracket 2 cooperates with the carrier plate 18 to compress the second spring 20 to deform it and generate a force. Then the electromagnet 21 is de-energized to lose its magnetism. The second spring 20 releases its force and brings the bracket 2 down, causing the bracket 2 to collide with the bottom wall of the vertical groove and vibrate. Subsequently, the electromagnet 21 is intermittently energized and de-energized to achieve continuous vibration of the bracket 2, thereby shaking off the slag attached to the dust suction port 3 and cleaning it, so as to avoid the slag from moving against the bottom of the plate when the plane 17 rises, thereby deforming the top of the plate.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A laser engraving machine for producing graphic advertisements, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a bracket (2), and dust suction ports (3) are equidistantly provided on the bracket (2); a long slot is symmetrically provided on the top of the workbench (1), a moving block (4) is provided in the long slot, a laser engraving assembly is connected to the moving block (4), a driving assembly for driving the moving block (4) to move is provided in the long slot, and a supporting assembly for supporting the engraving area of ​​the workpiece located at the dust suction port (3) is provided on the workbench (1); The support assembly comprises: a movable groove (7), an iron plate (8), a support plate (9), and a lifting assembly for driving the iron plate (8) to move up and down; The movable groove (7) is formed on the inner wall of the workbench (1) and is connected to the long groove. The movable groove (7) is arranged corresponding to the dust suction port (3). The width of the movable groove (7) is consistent with the width of the dust suction port (3). The iron plate (8) is located in the movable groove (7) and is connected to the support plate (9).

2. The laser engraving machine for producing graphic advertisements according to claim 1, characterized in that: The lifting assembly comprises: a limiting rod (10), a first spring (11), and a magnet (12) fixedly connected to the bottom of the moving block (4); The limiting rod (10) is fixedly connected to the top of the iron plate (8); the top of the workbench (1) is provided with a limiting hole corresponding to the limiting rod (10); the limiting rod (10) is located in the limiting hole; and the first spring (11) is sleeved outside the limiting rod (10).

3. The laser engraving machine for producing graphic advertisements according to claim 2, characterized in that: The driving assembly comprises: a screw rod (5) and a motor (6); The screw rod (5) is rotatably mounted in the long slot, the moving block (4) is threadedly sleeved on the outside of the screw rod (5), and the motor (6) is fixedly connected to the top of the workbench (1) and the end of its output shaft is fixedly connected to one end of the screw rod (5).

4. The laser engraving machine for producing graphic advertisements according to claim 3, characterized in that: Both ends of the support plate (9) are fixedly connected to a shaft (13), one end of the shaft (13) is rotatably mounted on the corresponding iron plate (8), and a plane (17) is provided at the bottom of the support plate (9) for contacting and supporting the surface of the plate, and a rotating component is provided outside the shaft (13) for driving its rotation.

5. The laser engraving machine for producing graphic advertisements according to claim 4, characterized in that: The rotating assembly comprises: a gear (14) fixedly sleeved on the outside of one side of the shaft (13), a torsion spring (15), and a rack (16); The rack (16) is fixedly mounted on the bottom wall of the workbench (1), the rack (16) is meshed with the gear (14), and the two ends of the torsion spring (15) are fixedly connected to the iron plate (8) and the gear (14) respectively.

6. The laser engraving machine for producing graphic advertisements according to claim 5, characterized in that: The workbench (1) is symmetrically provided with vertical grooves, a carrier plate (18) is fixedly installed in the vertical grooves, both sides of the bracket (2) are slidably installed in the corresponding vertical grooves, a plurality of vertical rods (19) are fixedly installed on the top of the bracket (2), the vertical rods (19) pass through the carrier plate (18), and a second spring (20) is provided on the outer sleeve of the vertical rod (19) for maintaining the bracket (2) in a stationary state when it is resisted by the iron plate (8), an electromagnet (21) is fixedly installed on the top wall of the vertical groove for controlling the motion state of the bracket (2), and the material of the vertical rod (19) is iron.

7. The laser engraving machine for producing graphic advertisements according to claim 6, characterized in that: When the iron plate (8) rises to the highest point, the plane (17) can be flush with the top of the bracket (2), and the size of the plane (17) is adapted to the size of the dust suction port (3).

8. The laser engraving machine for producing graphic advertisements according to claim 7, characterized in that: The laser engraving assembly comprises: a connecting plate (22), an electric slide (23), and a laser engraving gun (24); The connecting plate (22) is fixedly connected to the top of the moving block (4), and one end of the connecting plate (22) close to the electric slide (23) is fixedly connected to the electric slide (23). The laser engraving gun (24) is fixedly connected to the slider of the electric slide (23), and the center position of the laser engraving gun (24) and the center position of the moving block (4) are in the same vertical horizontal plane.

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