A laser cutting apparatus for aluminium profiles

Abstract

This invention relates to the field of laser cutting technology and discloses a laser cutting device for aluminum profiles, including a base. A housing is mounted on the upper end of the base, and a laser cutting head is mounted inside the housing. One side of the laser cutting head is provided with a transfer mechanism for moving the cut H-shaped aluminum profile segments, and the other side of the laser cutting head is provided with a flipping mechanism for rotating the H-shaped aluminum profile segments. The advantages of this invention are: during the flipping and cutting process of the H-shaped aluminum profile segments, as the H-shaped aluminum profile segments rotate, it is convenient to spray an anti-reflection coating agent onto their outer surface, and the fixing and transfer of the H-shaped aluminum profile segments can be completed efficiently and stably. Simultaneously, burrs on the cut sections at both ends of the H-shaped aluminum profile segments are ground, thereby improving the processing quality of the laser cutting.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for aluminum profiles. Background Technology

[0002] Aluminum profiles are aluminum tubes with different cross-sectional shapes obtained by hot melting and extrusion of aluminum rods. The forming process mainly includes melting and casting, extrusion, cutting, CNC washing and cutting, surface pretreatment, and coloring. They are mainly used in industrial production and manufacturing, such as automated mechanical equipment and frames.

[0003] However, when cutting H-shaped aluminum profiles into segments, the high reflectivity of the aluminum profile surface, especially polished aluminum, causes some laser beam reflection, resulting in energy loss and reduced cutting efficiency. This reflection phenomenon may also damage the optical components of the laser equipment. Therefore, it is necessary to spray an anti-reflection film or vacuum deposit a thin film on the surface of the H-shaped aluminum profile to reduce laser energy reflection and improve cutting efficiency. However, it is inconvenient to rotate the H-shaped aluminum profile during spraying, and unstable fixing can easily cause cutting errors. Moreover, due to the softness and thermal properties of aluminum, burrs and residues on the bottom of the cut are easily generated during the cutting process, which may require additional post-processing. To address these issues, we propose a laser cutting device for aluminum profiles. Summary of the Invention

[0004] The present invention solves the above-mentioned technical problems by adopting the following technical solution: A laser cutting device for aluminum profiles is provided, comprising a base, an outer shell mounted on the upper end of the base, a laser cutting head mounted on the inner side of the outer shell, a transfer mechanism for moving H-shaped aluminum tubes cut into segments provided on one side of the laser cutting head, and a flipping mechanism for rotating the H-shaped aluminum tubes provided on the other side of the laser cutting head. The transfer mechanism includes a first motor mounted on the inner side of the outer shell, a rotating rod fixedly connected to the output end of the first motor, a first fixing plate rotatably connected to the outer side of the rotating rod, the lower end of the first fixing plate fixedly connected to the base, a first pulley fixedly connected to the outer side of the rotating rod, and an adapter fixedly connected to the front end of the rotating rod. Clamping assemblies are provided at both ends of the adapter.

[0005] Preferably, the clamping assembly includes a connecting plate, a rotating block is fixedly connected to one side of the connecting plate, the rotating block is rotatably connected to an adapter, a support lug is fixedly connected to the other side of the connecting plate, electric push rods are provided at both the front and rear ends of the support lug, and a clamping plate is fixedly connected to the output end of the electric push rod.

[0006] Preferably, the two sets of clamping plates are symmetrical to each other, the clamping plates are slidably connected to the connecting plate, the lower end of the clamping plate is fixedly connected to a support block, the front end of the clamping plate is fixedly connected to two sets of clamping rods, the two sets of clamping plates are movably connected together to a first grinding plate, a second grinding plate is provided above the adapter, and the upper end of the second grinding plate is fixedly connected to the outer shell.

[0007] Preferably, a mounting plate is fixedly connected to the other side of the outer casing, and an opening is provided on the inner side of the mounting plate. The flipping mechanism includes a second motor, which is installed on the inner side of the outer casing. A first gear is fixedly connected to the output end of the second motor. The first gear meshes with an external gear ring. A first ring plate is fixedly connected to the inner side of the external gear ring. The other side of the first ring plate is rotatably connected to the mounting plate. Two sets of support components are provided on one side of the first ring plate. The support components include two sets of connecting rods.

[0008] Preferably, the other ends of the two sets of connecting rods are fixedly connected to the first ring plate, and a second fixing plate is fixedly connected between the two sets of connecting rods. Two sets of mutually symmetrical L-shaped plates are fixedly connected to the rear end of the second fixing plate. The outer side of the connecting rod is movably connected to the second ring plate, and a slot is provided on the inner side of the second ring plate. The slot fits against the surface of the connecting rod.

[0009] Preferably, a third fixing plate is fixedly connected to the inner side of the second ring plate, a push plate is movably connected to the inner side of the third fixing plate, an arc plate is fixedly connected to the upper end of the push plate, an annular groove is formed on the outer side of the second ring plate, a locking plate is movably connected to the inner side of the annular groove, an extension plate is fixedly connected to the lower end of the locking plate, and a sliding plate is fixedly connected to the rear end of the extension plate.

[0010] Preferably, the lower end of the slide plate is slidably connected to a track groove, the lower end of the track groove is fixedly connected to the base, the rear end of the slide plate is fixedly connected to a toothed plate, the lower end of the toothed plate is engaged with a second gear, the rear end of the second gear is fixedly connected to a second pulley, the rear end of the second pulley is rotatably connected to a first fixed plate, and the outer sides of the second pulley and the first pulley are rotatably connected to a belt.

[0011] Preferably, one end of the connecting rod is fixedly connected to a third ring plate, and two sets of support frames are fixedly connected to the inner side of the third ring plate. A paint tank is provided on the outer side of the outer shell, and a spray head is installed at the lower end of the paint tank. The lower end of the spray head extends to the inner side of the outer shell, and a stop block is movably connected to the lower end of the spray head. A fixing rod is fixedly connected to one side of the stop block, and the fixing rod is fixedly connected to the third ring plate.

[0012] Preferably, the lower end of the first grinding plate is fixedly connected to two sets of uprights, the lower ends of the two sets of uprights are fixedly connected to the base, and a conveyor belt is rotatably connected between the two sets of uprights.

[0013] Compared with the prior art, the present invention provides a laser cutting device for aluminum profiles, which has the following beneficial effects:

[0014] 1. This laser cutting equipment for aluminum profiles, by starting the second motor, the support assembly can rotate the H-shaped aluminum tube under the drive of the external gear ring. By fixing the other end of the H-shaped aluminum tube with the clamping assembly, the rotation and cutting can be more stable. Moreover, by rotating the H-shaped aluminum tube, it is convenient to spray an anti-reflection film on its outer side, so as to avoid the reflection phenomenon from damaging the optical components of the laser cutting head during laser cutting.

[0015] 2. This laser cutting equipment for aluminum profiles, by starting the first motor, drives two sets of clamping components to rotate under the connection of the rotating rod, which can stably transfer the H-shaped aluminum tubes cut into segments. When the rotating rod rotates, the second gear rotates through the belt connection, which in turn meshes with the toothed plate to cause the clamping plate to push the second ring plate to move, so that the push plate can automatically push the H-shaped aluminum tubes between the two sets of clamping plates, completing the feeding operation of the H-shaped aluminum tubes. It works closely with the clamping components, effectively improving the cutting and transfer efficiency of H-shaped aluminum tubes.

[0016] 3. This laser cutting equipment for aluminum profiles, during the process of the clamping assembly flipping and transferring the cut H-shaped aluminum tube segment, the two ends of the H-shaped aluminum tube segment will rub against the first grinding plate and the second grinding plate respectively, thereby completing the grinding of the cross-section of the H-shaped aluminum tube segment. This can reduce the burrs generated during the cutting process, save the operator from extra operations, and effectively improve the cutting quality of the H-shaped aluminum tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the flipping mechanism of the present invention Figure 1 ;

[0019] Figure 3 Schematic diagram of the flipping mechanism of the present invention Figure 2 ;

[0020] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of part A of the structure;

[0021] Figure 5 This is an exploded view of the second ring plate structure of the present invention;

[0022] Figure 6 Schematic diagram of the flipping mechanism of the present invention Figure 3 ;

[0023] Figure 7 Schematic diagram of the transfer mechanism of the present invention Figure 1 ;

[0024] Figure 8 Schematic diagram of the transfer mechanism of the present invention Figure 2 ;

[0025] Figure 9 This is an exploded view of the connecting plate structure of the present invention.

[0026] In the diagram: 1. Base; 2. Housing; 3. Laser cutting head; 4. Transfer mechanism; 41. First motor; 42. Rotating rod; 43. First fixing plate; 44. First pulley; 45. Adapter; 46. Clamping assembly; 461. Connecting plate; 462. Rotating block; 463. Support lug; 464. Electric push rod; 465. Clamping plate; 466. Support block; 467. Locking rod; 47. First grinding plate; 48. Second grinding plate; 5. Tilting mechanism; 51. Second motor; 52. First gear; 53. External gear ring; 54. First ring plate; 55. Support assembly; 551 552. Connecting rod; 553. Second fixing plate; 554. L-shaped plate; 5555. Second ring plate; 555. Slot; 556. Third fixing plate; 557. Push plate; 558. Arc plate; 559. Ring groove; 550. Slot plate; 551. Extension plate; 551. Slide plate; 552. Rail groove; 553. Toothed plate; 554. Second gear; 5555. Second pulley; 555. Belt; 5556. Third ring plate; 5557. Support frame; 5558. Stop block; 5559. Fixing rod; 550. Mounting plate; 551. Opening; 552. Paint tank; 553. Spray nozzle; 554. Upright pole; 555. Conveyor belt. Detailed Implementation

[0027] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Please see Figure 1 - Figure 9A laser cutting device for aluminum profiles includes a base 1, a housing 2 mounted on the upper end of the base 1, a laser cutting head 3 mounted on the inner side of the housing 2, a transfer mechanism 4 for moving H-shaped aluminum tubes cut into segments provided on one side of the laser cutting head 3, and a flipping mechanism 5 for rotating the H-shaped aluminum tubes provided on the other side of the laser cutting head 3. The transfer mechanism 4 includes a first motor 41, which is mounted on the inner side of the housing 2. A rotating rod 42 is fixedly connected to the output end of the first motor 41. A first fixing plate 43 is rotatably connected to the outer side of the rotating rod 42. The lower end of the first fixing plate 43 is fixedly connected to the base 1. A first pulley 44 is fixedly connected to the outer side of the rotating rod 42. An adapter 45 is fixedly connected to the front end of the rotating rod 42. Clamping components 46 are provided at both ends of the adapter 45.

[0029] In this embodiment, the clamping assembly 46 includes a connecting plate 461. A rotating block 462 is fixedly connected to one side of the connecting plate 461. The rotating block 462 is rotatably connected to the adapter 45. A support ear 463 is fixedly connected to the other side of the connecting plate 461. Electric push rods 464 are provided at both the front and rear ends of the support ear 463. A clamping plate 465 is fixedly connected to the output end of the electric push rod 464.

[0030] Specifically, when the other end of the H-shaped aluminum tube extends between the two sets of clamping plates 465 and contacts the support block 466 at its lower end, the two sets of electric push rods 464 that are closer to the laser cutting head 3 will be instructed to retract, causing the two sets of clamping plates 465 to move closer to the H-shaped aluminum tube and the clamping rods 467 to be inserted into the holes opened on both sides of the H-shaped aluminum tube, so as to fix the H-shaped aluminum tube.

[0031] In this embodiment, the two sets of clamping plates 465 are symmetrical to each other. The clamping plates 465 are slidably connected to the connecting plate 461. The lower end of the clamping plate 465 is fixedly connected to the support block 466. The front end of the clamping plate 465 is fixedly connected to two sets of clamping rods 467. The two sets of clamping plates 465 are movably connected to the first grinding plate 47. The adapter 45 is provided above the second grinding plate 48. The upper end of the second grinding plate 48 is fixedly connected to the outer shell 2.

[0032] Specifically, during the process of the clamping assembly 46 flipping and transferring the cut H-shaped aluminum tube, the two ends of the H-shaped aluminum tube will rub against the first grinding plate 47 and the second grinding plate 48 respectively, thereby grinding away the burrs on the cross-section of the H-shaped aluminum tube.

[0033] In this embodiment, a mounting plate 6 is fixedly connected to the other side of the outer shell 2. An opening 7 is provided on the inner side of the mounting plate 6. The flipping mechanism 5 includes a second motor 51, which is installed on the inner side of the outer shell 2. A first gear 52 is fixedly connected to the output end of the second motor 51. The first gear 52 meshes with an external gear ring 53. A first ring plate 54 is fixedly connected to the inner side of the external gear ring 53. The other side of the first ring plate 54 is rotatably connected to the mounting plate 6. Two sets of support components 55 are provided on one side of the first ring plate 54. The support components 55 include two sets of connecting rods 551. The other ends of the two sets of connecting rods 551 are fixedly connected to the first ring plate 54. A second fixing plate 552 is fixedly connected between the two sets of connecting rods 551. Two sets of mutually symmetrical L-shaped plates 553 are fixedly connected to the rear end of the second fixing plate 552. A second ring plate 56 is movably connected to the outer side of the connecting rods 551. A slot 57 is provided on the inner side of the second ring plate 56. The slot 57 fits against the surface of the connecting rod 551.

[0034] Specifically, starting the second motor 51 drives the first gear 52 to rotate. The first gear 52 meshes with the external gear ring 53, thereby causing the first ring plate 54 to rotate. At the same time, it will drive multiple sets of connecting rods 551 to rotate with the first ring plate 54. Then, under the support of the L-shaped plate 553, the H-shaped aluminum tube can be rotated.

[0035] In this embodiment, a third fixing plate 58 is fixedly connected to the inner side of the second ring plate 56, a push plate 59 is movably connected to the inner side of the third fixing plate 58, an arc plate 510 is fixedly connected to the upper end of the push plate 59, an annular groove 511 is provided on the outer side of the second ring plate 56, a locking plate 512 is movably connected to the inner side of the annular groove 511, an extension plate 513 is fixedly connected to the lower end of the locking plate 512, a sliding plate 514 is fixedly connected to the rear end of the extension plate 513, a rail groove 515 is slidably connected to the lower end of the sliding plate 514, the lower end of the rail groove 515 is fixedly connected to the base 1, a toothed plate 516 is fixedly connected to the rear end of the sliding plate 514, a second gear 517 is meshed at the lower end of the toothed plate 516, a second pulley 518 is fixedly connected to the rear end of the second gear 517, the rear end of the second pulley 518 is rotatably connected to the first fixing plate 43, and a belt 519 is rotatably connected to the outer side of the second pulley 518 and the first pulley 44.

[0036] Specifically, the first pulley 44 and belt 519 drive the second pulley 518 to rotate, which in turn causes the second gear 517 to rotate simultaneously. Then, the second gear 517 meshes with the toothed plate 516 to move it toward the conveyor belt 11. Then, through the connection between the slide plate 514 and the extension plate 513, the clamping plate 512 and the second ring plate 56 move together. With the connection of the push plate 59, the H-shaped aluminum tube can be pushed toward the laser cutting head 3.

[0037] In this embodiment, one end of the connecting rod 551 is fixedly connected to a third ring plate 520, and two sets of support frames 521 are fixedly connected to the inner side of the third ring plate 520. A paint tank 8 is provided on the outer side of the outer shell 2, and a spray nozzle 9 is installed at the lower end of the paint tank 8. The lower end of the spray nozzle 9 extends to the inner side of the outer shell 2, and a stop block 522 is movably connected to the lower end of the spray nozzle 9. A fixing rod 523 is fixedly connected to one side of the stop block 522, and the fixing rod 523 is fixedly connected to the third ring plate 520.

[0038] Specifically, during the flipping process of the H-shaped aluminum tube, since the third ring plate 520 is fixed to the connecting rod 551, the third ring plate 520 will also rotate with the H-shaped aluminum tube, thereby causing the stop block 522 to move away from the lower end of the nozzle 9 as it rotates, so that the anti-reflective coating agent in the paint tank 8 can be sprayed onto the surface of the H-shaped aluminum tube through the nozzle 9.

[0039] In this embodiment, two sets of uprights 10 are fixedly connected to the lower end of the first grinding plate 47. The lower ends of the two sets of uprights 10 are fixedly connected to the base 1. A conveyor belt 11 is rotatably connected between the two sets of uprights 10.

[0040] Specifically, after the H-shaped aluminum tube segment is placed on the conveyor belt 11, the electric push rod 464 is activated again, pushing the clamping plate 465 to move the clamping rod 467 out of the hole of the H-shaped aluminum tube segment. The H-shaped aluminum tube segment can then be moved out of the outer casing 2 under the transport of the conveyor belt 11.

[0041] In use, first place the H-shaped aluminum tube with holes on both sides into the inner area of ​​opening 7. Then, place both sides of the H-shaped aluminum tube into the L-shaped plate 553. During the pushing process, the crossbeam of the H-shaped aluminum tube will press against the arc plate 510, causing the push plate 59 to move downwards to the inner side of the third fixed plate 58. After the entire H-shaped aluminum tube is placed inside the outer casing 2, the arc plate 510 is no longer under pressure, and the push plate 59 pops out from the inner side of the third fixed plate 58, blocking one end of the H-shaped aluminum tube. At this time, the other end of the H-shaped aluminum tube is below the paint tank 8 and the spray head 9. Then, the second motor 51 can be started to drive the first gear 52 to rotate. The first gear 52 meshes with the external gear ring 53, thereby causing the first ring plate 54 to rotate, which will also drive multiple sets of connecting rods. As the first ring plate 54 rotates, and supported by the L-shaped plate 553, it drives the H-shaped aluminum tube to rotate. During the rotation, because the third ring plate 520 is fixed to the connecting rod 551, the third ring plate 520 also rotates with the H-shaped aluminum tube. This causes the stop block 522 to move away from the lower end of the nozzle 9, allowing the anti-reflective coating agent in the paint tank 8 to be sprayed onto the surface of the H-shaped aluminum tube through the nozzle 9. Then, the second motor 51 stops outputting, and the first motor 41 is started, causing the rotating rod 42 to rotate. During the rotation of the rotating rod 42, firstly, it drives the two sets of clamping components 46 to rotate through the connection of the adapter 45, and secondly, it drives the second pulley 518 to rotate through the first pulley 44 and the belt 519, thereby causing the second gear 517 to rotate simultaneously. The first motor rotates, and then the second gear 517 meshes with the toothed plate 516 to move it towards the conveyor belt 11. Then, through the connection between the slide plate 514 and the extension plate 513, the clamping plate 512 and the second ring plate 56 move together. Under the connection of the push plate 59, the H-shaped aluminum tube is pushed towards the laser cutting head 3 until the other end of the H-shaped aluminum tube has extended between the two sets of clamping plates 465 and its lower end contacts the support block 466. Then, the first motor 41 stops outputting. Then, the two sets of electric push rods 464 that are closer to the laser cutting head 3 are instructed to start retracting, so that the two sets of clamping plates 465 move closer to the H-shaped aluminum tube and the clamping rod 467 is inserted into the holes opened on both sides of the H-shaped aluminum tube. After the H-shaped aluminum tube is fixed, the second motor 517 is started again. 1. The H-shaped aluminum tube is flipped over. At this time, the laser cutting head 3 begins laser cutting as the H-shaped aluminum tube rotates, and the nozzle 9 sprays the surface of the next section of the H-shaped aluminum tube being cut. The first section of the cut H-shaped aluminum tube is then directly fixed between the two sets of clamping plates 465. Subsequently, the first motor 41 is started, causing the two sets of clamping components 46 to continue flipping. The set of clamping components 46 containing the H-shaped aluminum tube section is flipped above the conveyor belt 11. During this process, the cut section of the H-shaped aluminum tube section will contact the first grinding plate 47 and the second grinding plate 48 for grinding. After the H-shaped aluminum tube section is placed on the conveyor belt 11, the electric push rod 464 is started again, pushing the clamping plate 465 to remove the clamping rod 467 from the hole of the H-shaped aluminum tube section.The H-shaped aluminum tube segment is then transported by conveyor belt 11 for the next operation. At this time, another set of clamping components 46, which has flipped over, similarly secures the next H-shaped aluminum tube segment to be cut. The operation continues as above, including cutting and spraying, until the H-shaped aluminum tube is completely cut into segments.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for aluminum profiles, comprising a base (1), characterized in that: A housing (2) is installed on the upper end of the base (1). A laser cutting head (3) is installed on the inner side of the housing (2). A transfer mechanism (4) for moving the H-shaped aluminum tubes cut into segments is provided on one side of the laser cutting head (3). A flipping mechanism (5) for rotating the H-shaped aluminum tubes is provided on the other side of the laser cutting head (3). The transfer mechanism (4) includes a first motor (41). The first motor (41) is installed on the inner side of the housing (2). A rotating rod (42) is fixedly connected to the output end of the first motor (41). A first fixing plate (43) is rotatably connected to the outer side of the rotating rod (42). The lower end of a fixed plate (43) is fixedly connected to the base (1). A first pulley (44) is fixedly connected to the outer side of the rotating rod (42). An adapter (45) is fixedly connected to the front end of the rotating rod (42). Both ends of the adapter (45) are provided with clamping components (46). The clamping components (46) include a connecting plate (461). A rotating block (462) is fixedly connected to one side of the connecting plate (461). The rotating block (462) is rotatably connected to the adapter (45). A support ear (463) is fixedly connected to the other side of the connecting plate (461). Electric push rods (464) are provided at both the front and rear ends of the support ear (463). The output end of the electric actuator (464) is fixedly connected to a clamping plate (465). The two sets of clamping plates (465) are symmetrical to each other. The clamping plates (465) are slidably connected to the connecting plate (461). The lower end of the clamping plate (465) is fixedly connected to a support block (466). The front end of the clamping plate (465) is fixedly connected to two sets of clamping rods (467). The two sets of clamping plates (465) are movably connected to a first grinding plate (47). A second grinding plate (48) is provided above the adapter (45). The upper end of the second grinding plate (48) is fixedly connected to the outer shell (2). The other side of the outer shell (2) is fixedly connected to a mounting plate. (6) An opening (7) is provided on the inner side of the mounting plate (6). The flipping mechanism (5) includes a second motor (51). The second motor (51) is installed on the inner side of the outer casing (2). The output end of the second motor (51) is fixedly connected to a first gear (52). The first gear (52) meshes with an external gear ring (53). The inner side of the external gear ring (53) is fixedly connected to a first ring plate (54). The other side of the first ring plate (54) is rotatably connected to the mounting plate (6). Two sets of support components (55) are provided on one side of the first ring plate (54). The support components (55) include two sets of connecting rods (551).The other ends of the two sets of connecting rods (551) are fixedly connected to the first ring plate (54). A second fixing plate (552) is fixedly connected between the two sets of connecting rods (551). Two sets of mutually symmetrical L-shaped plates (553) are fixedly connected to the rear end of the second fixing plate (552). A second ring plate (56) is movably connected to the outer side of the connecting rod (551). A slot (57) is opened on the inner side of the second ring plate (56). The slot (57) fits against the surface of the connecting rod (551). A third fixing plate (58) is fixedly connected to the inner side of the third fixing plate (58), and a push plate (59) is movably connected to the inner side of the third fixing plate (58). An arc plate (510) is fixedly connected to the upper end of the push plate (59). An annular groove (511) is provided on the outer side of the second annular plate (56). A retaining plate (512) is movably connected to the inner side of the annular groove (511). An extension plate (513) is fixedly connected to the lower end of the retaining plate (512). A sliding plate (514) is fixedly connected to the rear end of the extension plate (513). A sliding plate (514) is slidably connected to the lower end of the sliding plate (514). The lower end of the track groove (515) is fixedly connected to the base (1). The rear end of the slide plate (514) is fixedly connected to the toothed plate (516). The lower end of the toothed plate (516) is meshed with a second gear (517). The rear end of the second gear (517) is fixedly connected to a second pulley (518). The rear end of the second pulley (518) is rotatably connected to the first fixed plate (43). The outer sides of the second pulley (518) and the first pulley (44) are rotatably connected to a belt (519). The connecting rod (55) 1) One end is fixedly connected to a third ring plate (520), and two sets of support frames (521) are fixedly connected to the inner side of the third ring plate (520). A paint tank (8) is provided on the outer side of the outer shell (2). A spray nozzle (9) is installed at the lower end of the paint tank (8). The lower end of the spray nozzle (9) extends to the inner side of the outer shell (2). A stop block (522) is movably connected to the lower end of the spray nozzle (9). A fixing rod (523) is fixedly connected to one side of the stop block (522). The fixing rod (523) is fixedly connected to the third ring plate (520).

2. The laser cutting equipment for aluminum profiles according to claim 1, characterized in that: The lower end of the first grinding plate (47) is fixedly connected to two sets of uprights (10), the lower ends of the two sets of uprights (10) are fixedly connected to the base (1), and the two sets of uprights (10) are rotatably connected to a conveyor belt (11).

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