Laser cutting equipment for building aluminum profile

Abstract

The application relates to the technical field of laser processing of building materials, and particularly discloses a building aluminum profile laser cutting device, which comprises a protective cover, a dust suction pipe and a cover curtain assembly. A laser cutting head for cutting the building aluminum profile is connected to the upper side of the protective cover in a lifting and sliding mode. The dust suction pipe is arranged on the lower side of the protective cover in a communication state. The protective cover forms a surrounding cover between the laser cutting head and the building aluminum profile. The cover curtain assembly is arranged at the cover opening of the protective cover and is symmetrically arranged about the central axis of the protective cover. The cover curtain assembly dynamically and flexibly seals the insertion connection between the building aluminum profile and the protective cover. The building aluminum profile laser cutting device forms a dynamic and flexible sealing barrier through the cover curtain assembly, improves the isolation effect of high-temperature splashes and harmful gases, carries out lockseaming treatment on the cover curtain assembly, improves the dustproof effect and the airtightness, and ensures efficient dust suction.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology for building materials, and more particularly to the field of laser cutting technology for aluminum profiles, specifically a laser cutting device for aluminum profiles used in construction. Background Technology

[0002] Aluminum profiles are metal structural materials made of aluminum with the addition of various alloying elements. They are formed into straight profiles with different cross-sectional shapes through hot melt extrusion. They have core advantages such as light weight, high specific strength, excellent corrosion resistance and excellent processing and assembly performance. With these advantages, aluminum profiles are widely used in many aspects of the construction field, such as doors and windows, curtain walls and structural supports.

[0003] In the cutting and processing of aluminum profiles for construction, in order to meet the stringent requirements of customization, complex structure and high-quality processing, laser cutting, an efficient and high-precision metal processing technology, is usually used. Through non-contact processing, complex shapes can be formed in one step.

[0004] For example, Chinese Patent CN114473254B discloses an automatic laser cutting device for pipe processing that facilitates clamping and positioning. This device can quickly and easily clamp and position pipes, thereby effectively improving the ease of operation of the laser cutting device. It can also facilitate automatic rotational cutting of pipes, thereby improving the cut quality of the pipes. Furthermore, it can facilitate automatic conveying of pipes, thereby improving the efficiency of pipe cutting. In addition, it can facilitate water spraying to cool and remove dust from the cut of the pipes, thereby avoiding environmental pollution.

[0005] Based on the aforementioned patents and in conjunction with existing solutions and actual production and processing applications, current aluminum profile laser cutting equipment still has some problems, such as:

[0006] When laser cutting aluminum profiles, high-temperature spatter and harmful gases are inevitably generated, which seriously threaten the safety of the workshop and operators. They also accumulate and pollute the laser cutting equipment, leading to a decline in cutting quality. Therefore, the treatment of high-temperature spatter and harmful gases is an important aspect that cannot be ignored.

[0007] The aforementioned patent includes a cooling water supply mechanism to spray water on the cutting area to reduce dust and prevent smoke and dust from polluting the environment. However, the cutting station in the aforementioned patent is an open station, and relying on a single point of water spraying to reduce dust makes it difficult to effectively capture all the smoke and dust. This will still cause the smoke and dust to spread into the working environment and cause pollution. In addition, the high temperature during water spraying will generate a large amount of water vapor, which will carry pollutants and cause secondary pollution to the working environment. It will also cause damage to the laser lens.

[0008] Existing laser cutting equipment is similar to the aforementioned patent, with the cutting station typically set up in an open state, relying solely on a single dust extraction port for fume collection and treatment. This approach fails to provide comprehensive isolation at the cutting station and cannot create a dynamic, flexible, sealed barrier at the isolation point, making it difficult to prevent the fume from escaping and spreading, thus polluting the working environment.

[0009] Therefore, we propose a laser cutting device for aluminum profiles used in construction to solve the problems mentioned above. Summary of the Invention

[0010] The purpose of this invention is to provide a laser cutting device for aluminum profiles used in construction, so as to solve the problems mentioned in the background art, which are that it is impossible to achieve complete isolation at the cutting station and it is impossible to form a dynamic flexible sealing barrier at the isolation point, making it difficult to avoid the escape and diffusion of smoke and dust, and polluting the working environment.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device for aluminum profiles used in construction, comprising:

[0012] A protective cover, wherein a laser cutting head for cutting architectural aluminum profiles is slidably connected to the upper side of the protective cover;

[0013] Also includes:

[0014] The suction pipe is connected and installed on the lower side of the protective cover, forming a surrounding cover between the laser cutting head and the building aluminum profile.

[0015] A curtain assembly is installed at the opening of the protective cover and is symmetrically arranged about the central axis of the protective cover. The curtain assembly provides a dynamic and flexible seal at the intersection of the building aluminum profile and the protective cover.

[0016] Preferably, the curtain assembly includes curtain petals arranged in a circular array and a curtain seat fixed to the curtain petals. The curtain seat drives the curtain petals to form a flipping structure on the protective cover, and a first torsion spring is installed at the flipping connection between the curtain seat and the protective cover. The curtain petals flip and unfold to avoid obstructing the opening of the protective cover.

[0017] Preferably, the curtain seat is provided with an integrated lever, and the lever is connected to the push block, which is integrated in the first drive frame, by means of sliding and pressing, and the first drive frame forms a rotating structure on the protective cover.

[0018] Preferably, the first drive frame is integrally provided with a first toothed ring portion co-centered therewith, and the first toothed ring portion is meshed and connected with the first gear, and the first gear is driven by the first servo motor to form a rotating structure on the protective cover.

[0019] Preferably, each side of the curtain petal is provided with an integrated edge strip, and a locking strip assembly for locking is provided between the edge strips of two adjacent curtain petals. The opening degree between two adjacent curtain petals is controlled by the locking seam treatment of the locking strip assembly.

[0020] Preferably, the locking strip assembly is arranged in a circular array on the curtain assembly. The locking strip assembly includes a tube frame and a locking strip body that is telescopically and slidably connected in the tube frame. The locking strip body is connected to two adjacent side strips by a snap-fit ​​method, and the locking strip body forms a sliding structure on the side strip.

[0021] The lock bar body is provided with air bladders at equal intervals, and the air bladders are connected to the air pipe connector on the lock bar body through air channels. The lock bar body and the edge strip are locked by the inflation of the air bladders.

[0022] Preferably, an air fitting with an air pipe connector is fixedly connected to the tube frame, and a piston rod is telescopically slidably connected inside the air fitting. A first spring is installed at the sliding connection between the two, and the piston rod is fixedly connected to the locking bar body, forming a synchronous movement structure.

[0023] Preferably, the tube frame forms a sliding structure within the track frame, and a second spring is installed at the sliding connection between the two. The track frame is integrally mounted on the protective cover, and the locking bar body is connected to the edge bar through the tube frame.

[0024] The tube frame is provided with an integrated pin, and the pin is slidably connected to the inclined groove opened on the second drive frame. The second drive frame forms a rotating structure on the protective cover.

[0025] Preferably, the second drive frame is integrally provided with a second toothed ring portion co-centered therewith, and the second toothed ring portion is meshed and connected with the second gear, and the second gear is driven by the second servo motor to form a rotating structure on the protective cover.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects: the laser cutting equipment for building aluminum profiles forms a dynamic flexible sealing barrier through the curtain assembly, which improves the isolation effect of high temperature splashes and harmful gases, and the curtain assembly is treated with lock seam treatment to improve the dustproof effect and airtightness, ensuring efficient dust collection.

[0027] 1. In the laser cutting of architectural aluminum profiles, a protective cover forms a surrounding shield between the laser cutting head and the architectural aluminum profile, effectively isolating the high-temperature spatter and harmful gases generated during cutting. In addition, a curtain assembly is set at the intersection of the architectural aluminum profile and the cover opening in the protective cover to form a dynamic and flexible sealing barrier, which improves the isolation effect of high-temperature spatter and harmful gases, forcing the high-temperature spatter and harmful gases to be concentrated inside the protective cover, preventing them from escaping and spreading and affecting the working environment, and also facilitating subsequent dust collection.

[0028] Furthermore, by releasing the pressure between the push block in the first drive frame and the lever in the curtain seat, and utilizing the elastic deformation of the first torsion spring to reset, the curtain seat drives the curtain petals to flip outward and open, thus removing the obstruction at the opening of the protective cover. This facilitates smooth insertion and connection between the architectural aluminum profile and the protective cover. When replacing architectural aluminum profiles of different specifications and shapes, it avoids violent contact between the architectural aluminum profile and the curtain assembly, thus reducing the possibility of the curtain petals being torn. In addition, when the curtain seat drives the curtain petals to flip and retract, it adaptively wraps around the architectural aluminum profile, automatically completing the flexible seal at the insertion and connection point between the architectural aluminum profile and the protective cover.

[0029] 2. Adjacent curtain petals are joined together, with corresponding edge strips on each petal fitting together. The sliding distance of the locking strip assembly on the edge strip is adjusted through a snap-fit ​​connection between the edge strip and the locking strip assembly. The locking strip assembly then locks the seam between adjacent curtain petals, controlling the degree of expansion and allowing for free adjustment. This locking design better adapts to different specifications and shapes of architectural aluminum profiles, preventing high-temperature splashes from escaping through gaps after excessive expansion, significantly improving dustproof performance. Furthermore, it enhances airtightness, effectively maintaining a stable negative pressure inside the protective cover, ensuring efficient subsequent dust collection. Simultaneously, the locking treatment also limits and locks adjacent curtain petals, constraining their movement path and preventing them from being sucked into the protective cover by negative pressure airflow during dust collection, thus avoiding interference with laser cutting. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0032] Figure 2 This is a side cross-sectional view of the laser cutting head and protective cover of the present invention docking;

[0033] Figure 3This is a side cross-sectional view of the curtain assembly and its driving method of the present invention.

[0034] Figure 4 This is a top sectional view of the assembly of the curtain assembly and the protective cover of the present invention;

[0035] Figure 5 This is a side view of the overall structure of the first drive frame of the present invention;

[0036] Figure 6 This is a top cross-sectional view of the driving method of the first drive frame and the driving method of the second drive frame of the present invention.

[0037] Figure 7 This is a side view of the overall structure of the locking bar assembly of the present invention;

[0038] Figure 8 This is a top cross-sectional view of the driving mechanism of the locking bar assembly of the present invention;

[0039] Figure 9 This is a side cross-sectional view of the connection between the locking bar body and the tube frame of the present invention;

[0040] Figure 10 This is a top cross-sectional view of the connection between the locking bar body and the edge bar of the present invention;

[0041] Figure 11 This is a side cross-sectional view of the driving mechanism of the locking bar body of the present invention;

[0042] Figure 12 This is a side view of the overall structure of the second drive frame of the present invention;

[0043] Figure 13 This is a side view of the connection between the tube frame and the track frame of the present invention.

[0044] In the diagram: 1. Protective cover; 2. Laser cutting head; 3. Dust suction pipe; 4. Curtain assembly; 5. Curtain petal; 6. Curtain base; 7. First torsion spring; 8. Toggle lever; 9. First drive frame; 10. Push block; 11. First toothed ring; 12. First gear; 13. First servo motor; 14. Edge strip; 15. Locking bar assembly; 16. Tube frame; 17. Locking bar body; 18. Airbag; 19. Air pipe fitting; 20. Piston rod; 21. First spring; 22. Track frame; 23. Second spring; 24. Pin; 25. Second drive frame; 26. Inclined groove; 27. Second toothed ring; 28. Second gear; 29. ​​Second servo motor. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] This invention provides a technical solution: a laser cutting device for aluminum profiles used in construction. This addresses the problem that existing open-style cutting station designs cannot effectively isolate the cutting station and cannot form a dynamic, flexible sealing barrier at the isolation point, making it difficult to prevent the escape and diffusion of high-temperature splashes and harmful gases, thus polluting the working environment. The device uses a protective cover 1 to form a surrounding shield between the laser cutting head 2 and the aluminum profile, completely isolating the high-temperature splashes and harmful gases generated during cutting. Furthermore, a curtain assembly 4 forms a dynamic, flexible sealing barrier at the intersection of the aluminum profile and the cover opening of the protective cover 1, preventing the high-temperature splashes and harmful gases from escaping and diffusing into the working environment from the intersection. Finally, the locking seam treatment of the locking strip assembly 15 controls the expansion degree of the curtain assembly 4, improving its dustproof effect and airtightness.

[0047] This technical solution: Please refer to Figures 1-13 A laser cutting device for building aluminum profiles includes a protective cover 1. The lower side of the protective cover 1 is provided with an integrated support leg. After the protective cover 1 is installed, the support leg is fixed to the laser cutting device, and the center of the protective cover 1 is on the same horizontal central axis as the center of the conveying mechanism in the laser cutting device (both the laser cutting device and the conveying mechanism are existing technologies and are not described in the accompanying drawings). This ensures that when the conveying mechanism transports building aluminum profiles, the building aluminum profiles can be centered and docked with the protective cover 1. The upper side of the protective cover 1 is slidably connected to a laser cutting head 2 for cutting building aluminum profiles. That is, after the laser cutting head 2 docks with the protective cover 1, the laser cutting head 2 moves through the upper wall of the protective cover 1 and extends into the cavity of the protective cover 1. In accordance with the processing requirements of the laser cutting device, the laser cutting head 2 can move up and down within the protective cover 1 to perform laser cutting processing of building aluminum profiles.

[0048] It also includes a dust suction pipe 3 and a curtain assembly 4. The dust suction pipe 3 is an integrated structure set on the lower wall of the protective cover 1 and is connected to the cavity of the protective cover 1. The protective cover 1 forms a surrounding cover between the laser cutting head 2 and the building aluminum profile. The dust suction pipe 3 is connected to a dust suction device (the dust suction device is existing technology and is not described in the attached drawings of the specification). During laser cutting, the high-temperature splashes and harmful gases generated are concentratedly sucked up to avoid direct discharge and affecting the working environment. The curtain assembly 4 is set at the opening of the protective cover 1 and is symmetrical about the central axis of the protective cover 1. The curtain assembly 4 provides a dynamic and flexible seal at the intersection of the building aluminum profile and the protective cover 1.

[0049] Specifically, in this technical solution, a protective cover 1 forms a surrounding shield between the laser cutting head 2 and the architectural aluminum profile, according to... Figure 1 and Figure 2 As shown, the protective cover 1 has a circular structure with integrated openings on both its left and right sides, all aligned with the same center. These openings are connected to the cover cavity. When the aluminum profile is conveyed and docked with the protective cover 1, it enters the cover cavity from the right opening and then extends from the left opening, placing the part of the aluminum profile to be cut within the cover cavity of the protective cover 1. This aligns the part of the aluminum profile to be cut with the laser cutting head 2. The circular protective cover 1 forms a surrounding shield between the laser cutting head 2 and the aluminum profile, effectively surrounding the cutting point throughout the process. This isolates the high-temperature splashes such as molten slag, sparks, and metal shavings generated during cutting, while also isolating and concentrating the harmful gases generated during cutting.

[0050] Specifically, in this technical solution, a dynamic flexible sealing barrier is formed at the intersection of the building aluminum profile and the protective cover 1 by the curtain assembly 4, according to... Figure 1 , Figure 3 and Figure 4 As shown, curtain assemblies 4 are installed at the openings on both sides of the protective cover 1. The curtain assembly 4 includes a curtain petal 5 and a curtain base 6. The curtain assembly 4 is arranged in a split structure. Multiple curtain petals 5 are arranged in a circular array at the opening of the protective cover 1 with the center of the protective cover 1 as the center. The curtain petals 5 are made of rubber and have elastic properties. The curtain assembly 4 is made into a multi-panel fan-shaped structure so that each curtain petal 5 can swing elastically on its own. When dealing with building aluminum profiles of different specifications and shapes, each curtain petal 5 can fit together and adaptively wrap the building aluminum profile. That is, the sealing of the building aluminum profile by the curtain assembly 4 is more uniform.

[0051] When the building aluminum profile is conveyed and interlocked with the protective cover 1, multiple curtain petals 5 in the cover assembly 4 adaptively wrap the building aluminum profile, forming a dynamic flexible sealing barrier at the interlocking connection between the building aluminum profile and the cover opening in the protective cover 1. This prevents high-temperature splashes and harmful gases from escaping and diffusing into the working environment from the interlocking connection of the cover opening, reducing dust accumulation on the equipment and aluminum profile surface, and also reducing harm to the health of operators.

[0052] In addition, the flexible seal of the curtain assembly 4 at the intersection of the building aluminum profile and the protective cover 1, with the end of the curtain petal 5 facing away from the protective cover 1 being the outward end, the overall structure of the curtain assembly 4 is set as a conical cylinder. When the curtain assembly 4 is connected to the building aluminum profile, the curtain petal 5 is set in an inclined state relative to the building aluminum profile, ensuring that the curtain petal 5 is evenly stressed and has good elasticity, and will not cause the outward end of the curtain petal 5 to hard-push against the building aluminum profile. That is, during the processing and conveying of the building aluminum profile, the material conveying is stable and smooth.

[0053] Meanwhile, in the above technical solution, according to Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, both sides of the protective cover 1 are integrally structured with inner ring frames that are centered with the cover opening. The inner ring frames are fitted outside the cover opening. The first drive frame 9 is circular in structure. The two first drive frames 9 are respectively connected to the inner ring frames in the two protective covers 1. After the first drive frame 9 is installed, it is movably locked inside the inner ring frame. That is, the inner ring frame in the protective cover 1 is used to support the assembly of the first drive frame 9. In addition, after the first drive frame 9 and the inner ring frame are connected, their centers coincide. The outer side of the first drive frame 9 is also integrally structured with annular protrusions that serve as limiters, so that the first drive frame 9 is positioned in a movable state inside the inner ring frame in the protective cover 1, ensuring that the first drive frame 9 can rotate stably.

[0054] Since the first drive frame 9 has an integrally formed first toothed ring portion 11 with the same center, after the first drive frame 9 is assembled with the protective cover 1, the first toothed ring portion 11 extends outward through the sliding groove on the inner ring frame and engages with the first gear 12. That is, the sliding groove on the inner ring frame provides displacement space for the first toothed ring portion 11. Also, since the first drive frame 9 is mirror-image about the vertical central axis of the protective cover 1, the two first drive frames 9 are respectively engaged with the curtain bases 6 in the two curtain assemblies 4, and are respectively used to control the flipping and unfolding or flipping and closing movements of the curtain petals 5 in the two curtain assemblies 4. The first gear 12 is mirrored about the vertical central axis of the protective cover 1. The two first gears 12 are respectively connected to the first gear rings 11 on the two first drive frames 9. The first servo motor 13 has a dual output shaft structure. The two first gears 12 are respectively fixed to the two output ends of the first servo motor 13. When the first servo motor 13 is running, it can drive the two first gears 12 to work synchronously. That is, by relying on the meshing transmission between the first gear 12 and the first gear rings 11, it can drive the two first drive frames 9 to rotate synchronously, so as to realize the synchronous control of the two curtain components 4.

[0055] Since the first servo motor 13 is positioned between the two first gears 12 and is fixedly mounted in a groove on the protective cover 1 by bolts, and since an integrated shaft is provided at the center of the first gear 12, with a bearing fixedly attached to the shaft, after the first gear 12 is installed, the shaft and bearing are movably inserted into the protective cover 1, and the shaft movably extends outward through the wall of the protective cover 1, that is, the protective cover 1 is used to support the assembly of the first gear 12. Furthermore, since the first gear ring portion 11 is an incomplete ring structure, and the center of the first gear ring portion 11 coincides with the center of the first drive frame 9, The first gear 12 is meshed with the first gear ring 11. The shaft of the first gear 12 is fixedly connected to the output end of the first servo motor 13 by bolts. When the first servo motor 13 is started, it drives the first gear 12 to rotate on the protective cover 1. Through the meshing transmission between the first gear 12 and the first gear ring 11, the first gear ring 11 is driven to move, which drives the first drive frame 9 to rotate in the inner ring frame in the protective cover 1. Conversely, when the first servo motor 13 is started to run in the opposite direction, it drives the first drive frame 9 to reset and rotate in the inner ring frame in the protective cover 1.

[0056] Since the end of the curtain petal 5 facing the protective cover 1 is the inward end, the curtain base 6 is arranged in a circular array at the opening of the protective cover 1 with the center of the protective cover 1 as the center. Each curtain base 6 is connected to each curtain petal 5. After the curtain petal 5 is installed, its inward end is fixedly connected to the curtain base 6 by bolts. That is, the curtain base 6 is used to support the assembly of the curtain petal 5. Since the middle of the curtain base 6 is provided with an integrated connecting seat, the opening of the protective cover 1 is provided with a groove that matches the connecting seat in the curtain base 6. After the curtain base 6 is installed, the connecting seat is movably locked in the groove at the opening of the protective cover 1. A rotatable shaft is movably inserted in the connecting seat of the curtain base 6, and the two ends of the shaft are respectively inserted and fixedly connected to the two sides of the groove wall at the opening of the cover by bolts. That is, the opening of the protective cover 1 is used to support the centralized assembly of multiple curtain bases 6.

[0057] Since the push block 10 is integrally structured on the inner wall of the first drive frame 9 and arranged in a circular array within the first drive frame 9 with the center of the first drive frame 9 as the center, the first drive frame 9 is used to support the centralized assembly of multiple push block 10s. The first drive frame 9 can drive multiple push block 10s to move synchronously. Furthermore, since the middle position of the curtain seat 6 is integrally structured with a lever 8, the lever 8 serves as the driving component of the curtain seat 6, driving the curtain seat 6 to move synchronously. Additionally, since the connection between the push block 10 and the first drive frame 9 is provided with an inclined sidewall, and the push block 10 and the lever 8... The components are connected by a sliding and pressing method. When the first drive frame 9 is driven to rotate, it drives the push block part 10 to move synchronously, causing the lever part 8 to slide on the push block part 10 and slide down the inclined side wall of the push block part 10 to disengage from the push block part 10. During this process, the push block part 10 loses its pressing effect on the lever part 8, thereby causing the curtain seat 6 to lose the pushing force brought by the lever part 8. In addition, each push block part 10 is arranged in a one-to-one correspondence with the lever part 8 on each curtain seat 6. The first drive frame 9 drives multiple push block parts 10 to move synchronously, that is, it can drive multiple curtain seats 6 to work synchronously at the same time.

[0058] Conversely, when the first drive frame 9 is driven to reset and rotate, it also drives the push block part 10 to reset displacement movement synchronously. By utilizing the sliding and pressing cooperation between the push block part 10 and the lever part 8, the lever part 8 slides along the inclined side wall onto the push block part 10. During this process, the lever part 8 is subjected to a pressing action, thereby allowing the curtain seat 6 to obtain the pushing force brought by the lever part 8.

[0059] In addition, when the first drive frame 9 drives the curtain seat 6 to work, it relies on the sliding and pressing cooperation between the lever part 8 and the push block part 10 to set the end of the lever part 8 into a spherical structure, so that the lever part 8 and the push block part 10 are in point contact, reducing frictional resistance and making the lever part 8 slide more smoothly on the push block part 10. At the same time, the lever part 8 will move accordingly when it is pressed. The spherical contact point allows the lever part 8 to adapt to the angle and avoid jamming.

[0060] Because the first torsion spring 7 is symmetrically arranged about the central axis of the curtain seat 6, it ensures that the curtain seat 6 is subjected to balanced force and prevents the curtain seat 6 from moving unilaterally. After installation, the first torsion spring 7 is movably sleeved outside the shaft column in the curtain seat 6. One end of it is movably inserted into the spring chamber of the connecting seat in the curtain seat 6 and is locked to the chamber wall. The other end of it is movably inserted into the spring chamber of the groove at the opening of the protective cover 1 and is locked to the chamber wall. In the initial state of the curtain assembly 4, the curtain seat 6 controls the curtain petals 5 to flip and close. At this time, the first torsion spring 7 undergoes elastic deformation under force. When the curtain seat 6 After the pushing force is lost, the elastic deformation of the first torsion spring 7 is used to reset the curtain seat 6, which is assisted by the central axis column to rotate at the opening of the protective cover 1. The curtain seat 6 drives the curtain petals 5 to rotate and unfold. Each curtain petal 5 rotates outward and swings open, so that the curtain assembly 4 no longer blocks the opening of the protective cover 1 and the opening of the protective cover 1 is completely open. This makes it easy for the building aluminum profile to be smoothly inserted and connected to the protective cover 1. The curtain petals 5 actively avoid contact with the curtain petals 5, and the building aluminum profile is suspended and inserted without contacting the curtain petals 5, thus avoiding damage to the curtain petals 5.

[0061] Conversely, when the curtain seat 6 is pushed, the curtain seat 6 causes the curtain petals 5 to reset and flip at the opening of the protective cover 1, and the first torsion spring 7 undergoes elastic deformation. The curtain seat 6 causes the curtain petals 5 to flip and close, so that the cover curtain assembly 4 returns to its initial state. Each curtain petal 5 flips and retracts, adaptively wrapping the building aluminum profile.

[0062] Specifically, in this technical solution, the unfolding degree of the curtain assembly 4 is controlled by the locking seam treatment of the locking strip assembly 15, according to... Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, the left and right sides of the protective cover 1 are both integrally structured with outer ring frames that are co-centered with the inner ring frame. The outer ring frame is fitted outside the inner ring frame. The second drive frame 25 is arranged in a circular structure. The two second drive frames 25 are respectively connected to the outer ring frames in the two protective covers 1. After the second drive frame 25 is installed, it is movably fitted outside the outer ring frame. That is, the outer ring frame in the protective cover 1 is used to support the assembly of the second drive frame 25. In addition, after the second drive frame 25 is connected to the outer ring frame, their centers coincide. The inner side of the second drive frame 25 is also integrally structured with a ring-shaped protrusion that serves as a limit, so that the second drive frame 25 is positioned in a movable state outside the outer ring frame in the protective cover 1, ensuring that the second drive frame 25 can rotate stably.

[0063] Since the second drive frame 25 has an integrally formed second toothed ring portion 27 with the same center, after the second drive frame 25 is assembled with the protective cover 1, the second toothed ring portion 27 extends outward through the sliding groove on the outer ring frame and engages with the second gear 28. That is, the sliding groove on the outer ring frame provides displacement space for the second toothed ring portion 27. Furthermore, since the second drive frame 25 is mirror-image about the vertical central axis of the protective cover 1, the two second drive frames 25 are respectively engaged with the locking strip assemblies 15 on the two curtain assemblies 4, and are respectively used to control the two locking strip assemblies 15 to lock the two curtain assemblies 4 at the seams. The second gear 28 is mirror-image of the vertical central axis of the protective cover 1. The two second gears 28 are respectively connected to the second gear rings 27 on the two second drive frames 25. The second servo motor 29 has a dual output shaft structure. The two second gears 28 are respectively fixed to the two output ends of the second servo motor 29. When the second servo motor 29 is running, it can synchronously drive the two second gears 28 to work. That is, by relying on the meshing transmission between the second gears 28 and the second gear rings 27, it can synchronously drive the two second drive frames 25 to rotate, so as to realize the synchronous control of the two locking bar assemblies 15.

[0064] Since the second servo motor 29 is positioned between the two second gears 28 and is bolted to a groove on the protective cover 1, and since an integrated shaft is located at the center of the second gear 28, with a bearing fixedly attached to the shaft, the shaft, along with the bearing, is movably inserted into the protective cover 1 after the second gear 28 is installed. The shaft also extends outward through the wall of the protective cover 1. Therefore, the protective cover 1 is used to support the assembly of the second gear 28. Furthermore, since the second gear ring 27 is an incomplete ring structure, and the center of the second gear ring 27 coincides with the center of the second drive frame 25, the second... The second gear 28 is meshed with the second gear ring 27. The shaft of the second gear 28 is fixedly connected to the output end of the second servo motor 29 by bolts. When the second servo motor 29 is started, it drives the second gear 28 to rotate on the protective cover 1. Through the meshing transmission between the second gear 28 and the second gear ring 27, the second gear ring 27 is driven to move, which drives the second drive frame 25 to rotate outside the outer ring frame in the protective cover 1. Conversely, when the second servo motor 29 is started to run in the opposite direction, it drives the second drive frame 25 to return to its original position outside the outer ring frame in the protective cover 1.

[0065] Since the locking bar assembly 15 includes a tube shell frame 16 and a locking bar body 17, and since the track frame 22 is an integrated structure set on the inner ring frame in the protective cover 1, and it is arranged in a ring array on the inner ring frame of the protective cover 1 with the center of the protective cover 1 as the center, each track frame 22 is connected to each locking bar assembly 15. After the tube shell frame 16 is connected to the track frame 22, the tube shell frame 16 moves through the frame cavity of the track frame 22, and the air pipe connector in the locking bar body 17 moves through the through-shaped sliding groove on the track frame 22 and extends outward. The sliding groove provides displacement space for the air pipe connector. That is, the track frame 22 is used to support the assembly of the tube shell frame 16.

[0066] Since the pin portion 24 is vertically mounted on the tube frame 16 in an integrated structure, it serves as the driving component of the tube frame 16, driving the tube frame 16 to move synchronously. Furthermore, since the inclined groove 26 is formed through the second drive frame 25, after the tube frame 16 and the track frame 22 are assembled, the pin portion 24 extends outward through the through-groove on the track frame 22. The groove provides displacement space for the pin portion 24, and the pin portion 24 is movably inserted into the inclined groove 26. The two are connected by a sliding manner. When the second drive frame 25 is driven to rotate, the pin portion 24 and the inclined groove 26... The sliding fit between 6 drives the pin 24 to move, and the pin 24 drives the tube frame 16 to slide in the cavity of the track frame 22. In addition, the inclined grooves 26 are arranged in a circular array in the second drive frame 25 with the center of the second drive frame 25 as the center. Each inclined groove 26 is corresponding to the pin 24 on each tube frame 16. After the second drive frame 25 rotates, it can drive multiple tube frames 16 to work synchronously. Conversely, when the second drive frame 25 is driven to reset and rotate, the pin 24 drives the tube frame 16 to reset and slide in the cavity of the track frame 22.

[0067] Since the second spring 23 is symmetrically arranged about the central axis of the tube frame 16, and since both sides of the track frame 22 are provided with integrated supports, both sides of the tube frame 16 are also provided with integrated supports. Two supports in the tube frame 16 correspond to two supports in the track frame 22. Guide rods are inserted into and fixed to the supports in the tube frame 16 with bolts. After the tube frame 16 and track frame 22 are assembled, the supports in the tube frame 16, along with the guide rods, move through the through-groove on the track frame 22 and extend outwards. The groove provides displacement space for the supports in the tube frame 16, and the two guide rods in the tube frame 16 move through... Two supports in the track frame 22 extend outwards, and two guide rods are used to support the assembly of two second springs 23. After the second springs 23 are installed, they are movably sleeved on the guide rods in the tube frame 16. One end of the second spring 23 presses against the support in the tube frame 16, and the other end of the second spring 23 presses against the support in the track frame 22. When the tube frame 16 is driven to slide out in the cavity of the track frame 22, the second spring 23 is compressed and undergoes elastic deformation, and the tube frame 16 drives the locking bar body 17 inside to move synchronously. That is, the inward end of the tube frame 16 is aligned with the side strip 14 on the curtain petal body 5, and the locking bar body 17 is precisely aligned with the side strip 14.

[0068] Because the curtain assembly 4 is set in a conical cylindrical structure, the curtain petal 5 is in an inclined state. The end of the tube frame 16 facing the curtain petal 5 is the inward end, which is set in a bent and inclined state, and the inclination angle of the inward end is the same as the inclination angle of the curtain petal 5. When the tube frame 16 with the locking strip body 17 is connected to the curtain petal 5, the locking strip body 17 is set parallel to the side strip 14 on the curtain petal 5, ensuring that the locking strip body 17 and the side strip 14 are accurately connected.

[0069] Since the end of the gas fitting 19 facing the tube frame 16 is provided with an integrated tube seat, the gas fitting 19 and the tube frame 16 are on the same horizontal central axis after the gas fitting 19 is installed. The tube seat is snapped and fixedly connected to the outer end of the tube frame 16 by bolts. That is, the tube frame 16 is used to support the assembly of the gas fitting 19. Since the plug end of the piston rod 20 is fixedly snapped with a sealing ring, the plug end of the piston rod 20 is sealed and inserted into the cavity of the gas fitting 19 after the piston rod 20 is installed. The tail end of the rod moves through the tube seat in the gas fitting 19 and extends into the tube frame 16. That is, the gas fitting 19 is used to support the assembly of the piston rod 20.

[0070] Since the end of the locking bar body 17 facing the curtain petal body 5 is the inward end, and the other end is the outward end, an air pipe connector is installed on the outward end of the locking bar body 17. After the locking bar body 17 is installed, it is movably inserted into the cavity of the tube frame 16, and the air pipe connector is movably inserted through the through-shaped sliding groove on the tube frame 16 and extends outward. The sliding groove provides displacement space for the air pipe connector. That is, the tube frame 16 is used to support the assembly of the locking bar body 17 and assist in guiding the sliding of the locking bar body 17.

[0071] Because a first spring 21 is installed at the sliding connection between the air fitting 19 and the piston rod 20, the first spring 21 is movably sleeved outside the piston rod 20 after installation. One end of the spring 21 presses against the plug end of the piston rod 20, and the other end presses against the wall of the air fitting 19. Furthermore, an air fitting connector is installed at the end of the air fitting 19, which is externally connected to an air supply device (the air supply device is prior art and is not described in the accompanying drawings; additionally, the air fitting can be centrally connected to the air supply device via a spring-loaded air pipe). A plastic end seat is fixedly connected to the outward-facing end of the locking bar body 17, and the rod end of the piston rod 20 is inserted and connected to... The piston rod 20 is fixedly connected to the plastic end seat of the locking bar body 17 by bolts. Air is supplied into the air pipe 19 through the air supply device, which drives the piston rod 20 to slide out of the air pipe 19. During this process, the piston rod 20 drives the locking bar body 17 to slide synchronously, compressing the first spring 21 to cause it to undergo elastic deformation under force, and driving the locking bar body 17 to slide out of the frame cavity of the tube frame 16. In addition, the rigid plastic end seat serves as a rigid power adapter. When the piston rod 20 drives the locking bar body 17 to slide synchronously, it evenly transmits the thrust to the entire locking bar body 17, ensuring smooth pushing and pulling of the locking bar body 17.

[0072] Since the locking bar body 17 is made of rubber, it has elastic properties. When the locking bar body 17 slides in the cavity of the tube frame 16 and passes the bend at the inward end of the tube frame 16, the locking bar body 17 can adapt to elastic deformation, which, together with the guide structure of the tube frame 16, ensures smooth sliding.

[0073] Since the cross-sectional shape of the edge strip 14 is "L" shaped, it is mirrored about the central axis of the curtain petal 5. The two edge strips 14 are integrated into the two sides of the curtain petal 5. In the initial state, the sides of the two adjacent curtain petals 5 are connected together, so that the edge strips 14 on the two adjacent curtain petals 5 are also in a close fit. The two edge strips 14 that are in close fit form a "convex" shaped structure. Through the "convex" shaped structure, the edge strip 14 and the locking strip body 17 in the locking strip assembly 15 can form a concave-convex interlocking buckle structure, which ensures the reliability of the edge strip 14 after it is locked, and also improves the sealing between the two adjacent curtain petals 5 after they are locked.

[0074] Since the cross-sectional shape of the lock bar body 17 is "U" shaped, the groove structure and the two adjacent side strips 14 are combined to form a "T" shaped structure. When the lock bar body 17 is driven to slide out, the inner end of the lock bar body 17 is connected to the side strip 14, and the two form a snap-fit ​​connection of concave and convex. Then, according to the degree of expansion between the two adjacent curtain petals 5, the lock bar body 17 is driven to slide on the side strip 14 to the corresponding position.

[0075] Because the groove wall of the locking bar body 17 has a thin-walled inflation space, which is an airbag 18, the airbags 18 are arranged at equal intervals on the groove wall of the locking bar body 17, and the airbags 18 are staggered from the plastic rings in the locking bar body 17, that is, the airbags 18 are placed between two adjacent plastic rings. Furthermore, because the groove wall of the locking bar body 17 also has an air passage connected to the air pipe connector therein, the air passage is connected in series to all the airbags 18, and the air pipe connector is externally connected to an air supply device (the air supply device is prior art and is not shown in the accompanying drawings). In addition, the air tube connector can be centrally connected to the air supply device through the spring air tube. When the locking bar body 17 is driven to slide on the side strip 14 to the corresponding position according to the expansion degree between two adjacent curtain petals 5, all airbags 18 are inflated at the same time through the air supply device and airway. After the airbag 18 is inflated, the thinner cavity wall of it expands and deforms. The wall of the airbag 18 will press against the side strip 14. With the buckle connection between the locking bar body 17 and the side strip 14, the locking bar body 17 locks the side strip 14 at the corresponding coverage area, completing the lock seam treatment.

[0076] In addition, multiple airbags 18 are used to apply pressure to the side strip 14 at multiple points, so that the lock bar body 17 can evenly tighten the side strip 14 at the corresponding coverage area, ensuring the uniformity of the locking force. In conjunction with the plastic ring clamping the side strip 14, the plastic ring clamp restricts the side strip 14 from deforming, effectively concentrating the pressure generated by the airbags 18 and improving the reliability of locking.

[0077] Since multiple locking strip assemblies 15 are arranged in a circular array on the protective cover 1 with the center of the curtain assembly 4 as the center, each locking strip assembly 15 is mated at the joint between two adjacent curtain petals 5 in the curtain assembly 4. The locking strip assembly 15 is locked to the upper edge strip 14 of the two adjacent curtain petals 5 by a snap-fit, thus locking the joint between the two adjacent curtain petals 5. Furthermore, by using architectural aluminum profiles of different specifications and shapes, the degree of expansion between the two adjacent curtain petals 5 is controlled, thereby improving the dustproof effect and airtightness of the curtain assembly 4, preventing high-temperature splashes and harmful gases from leaking out from the gaps, and effectively maintaining a stable negative pressure inside the protective cover 1. The air pipes 19 and 20 are evenly arranged around the circumference of the curtain assembly 4 to ensure a uniform sealing state around the curtain assembly 4 and to prevent local dust leakage dead corners. In addition, the cooperation between the air pipe 19 and the piston rod 20 forms a driving structure for the locking strip body 17. Each locking strip body 17 has an independent driving structure, which can independently control the sliding distance of the locking strip body 17 on the corresponding edge strip 14. Each locking strip body 17 forms an independent locking structure through the airbag 18 on it. That is, each locking strip assembly 15 can individually control the expansion degree of each seam in the curtain assembly 4, better adapting to different specifications and shapes of architectural aluminum profiles, and ensuring that each curtain petal 5 can reserve a suitable deformation space with the architectural aluminum profile.

[0078] Conversely, before the aluminum profile and protective cover 1 are inserted and connected, and the curtain assembly 4 is flipped and unfolded, the airbag 18 is first deflated through the air passage in the locking strip body 17. After the airbag 18 rebounds and resets, the locking strip body 17 releases the locking effect on the edge strip 14. Then, the air pipe 19 is deflated. The elastic deformation of the first spring 21 resets the piston rod 20 within the air pipe 19, and the piston rod 20 drives the locking strip body 17 to slide and retract, so that the locking strip body 17 is completely retracted into the cavity of the tube frame 16. Then, the sliding cooperation between the pin part 24 and the inclined groove 26, and the elastic deformation of the second spring 23 resets the second drive frame 25. After the second drive frame 25 resets and rotates, the tube frame 16 is driven to reset and slide and retract within the cavity of the track frame 22, and the tube frame 16 is separated from the edge strip 14, making room for flipping. That is, the locking strip assembly 15 will not affect the flipping and unfolding of the curtain assembly 4.

[0079] Meanwhile, in the above technical solution, according to Figure 4 and Figure 9 As shown, the edge strip 14 is made of the same material as the curtain petal 5, which is also rubber. It can deform with the deformation of the curtain petal 5. When the curtain petal 5 is elastically adjusted to fit the structural shape of the building aluminum profile, the edge strip 14 will not affect the deformation of the curtain petal 5.

[0080] Meanwhile, in the above technical solution, according to Figure 9 and Figure 10As shown, plastic rings are fixedly connected at equal intervals within the groove of the locking bar body 17. The shape of the plastic rings matches the shape of the groove in the locking bar body 17. When the locking bar body 17 slides within the tube frame 16, the rigidity of the plastic rings tightens the locking bar body 17 along the circumference of the groove, constraining the radial deformation of the locking bar body 17. Furthermore, the equally spaced plastic rings segmentally tighten the groove wall of the locking bar body 17, constraining the axial tensile deformation of the locking bar body 17. This effectively restrains the locking bar body 17. 7. Effective support is achieved, maintaining the sliding fit between the locking bar body 17 and the tube frame 16, and facilitating precise docking between the locking bar body 17 and the edge strip 14. In addition, when the locking bar body 17 docks with the edge strip 14 and slides on the edge strip 14, the coefficient of friction between the plastic ring and the rubber edge strip 14 is lower than the coefficient of friction between the rubber edge strip 14 and the rubber locking bar body 17. The plastic ring can indirectly share the friction between the locking bar body 17 and the edge strip 14, ensuring that the locking bar body 17 slides smoothly on the edge strip 14.

[0081] This is the entire working process of the laser cutting equipment for aluminum profiles used in construction. Any content not described in detail in this manual is existing technology known to those skilled in the art.

[0082] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention; the contents not described in detail in this specification belong to the prior art known to those skilled in the art; in addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions and not absolute positions.

[0083] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0084] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting device for aluminum profiles used in construction, comprising: A protective cover (1) is provided with a laser cutting head (2) for cutting building aluminum profiles, which is slidably connected to the upper side of the protective cover (1). Its characteristic is that it further includes: The suction pipe (3) is connected and installed on the lower side of the protective cover (1), forming a surrounding cover between the laser cutting head (2) and the building aluminum profile through the protective cover (1); The curtain assembly (4) is set at the opening of the protective cover (1) and is symmetrical about the central axis of the protective cover (1). The curtain assembly (4) provides dynamic and flexible sealing at the intersection of the building aluminum profile and the protective cover (1).

2. The laser cutting equipment for aluminum profiles used in construction according to claim 1, characterized in that: The curtain assembly (4) includes curtain petals (5) arranged in a circular array and a curtain seat (6) fixed to the curtain petals (5). The curtain seat (6) drives the curtain petals (5) to form a flipping structure on the protective cover (1). A first torsion spring (7) is installed at the flipping connection between the curtain seat (6) and the protective cover (1). The curtain petals (5) avoid flipping and unfolding, thus losing the cover opening of the protective cover (1).

3. The laser cutting equipment for aluminum profiles used in construction according to claim 2, characterized in that: The curtain seat (6) is provided with an integrated lever part (8), and the lever part (8) is connected to the push block part (10) which is integrated in the first drive frame (9) by sliding and pressing, and the first drive frame (9) forms a rotating structure on the protective cover (1).

4. The laser cutting equipment for aluminum profiles used in construction according to claim 3, characterized in that: The first drive frame (9) is integrally provided with a first toothed ring (11) that is co-centered with it, and the first toothed ring (11) is meshed with the first gear (12), and the first gear (12) is driven by the first servo motor (13) to form a rotating structure on the protective cover (1).

5. The laser cutting equipment for aluminum profiles used in construction according to claim 2, characterized in that: Both sides of the curtain petal (5) are provided with an integrated edge strip (14). A locking strip assembly (15) for locking is provided between the edge strips (14) on two adjacent curtain petals (5). The expansion degree between two adjacent curtain petals (5) is controlled by the locking seam treatment of the locking strip assembly (15).

6. The laser cutting equipment for aluminum profiles used in construction according to claim 5, characterized in that: The locking strip assembly (15) is arranged in a ring array on the curtain assembly (4). The locking strip assembly (15) includes a tube frame (16) and a locking strip body (17) that is telescopically and slidably connected in the tube frame (16). The locking strip body (17) is connected to two adjacent side strips (14) by a snap-fit ​​method, and the locking strip body (17) forms a sliding structure on the side strips (14). The lock bar body (17) is provided with airbags (18) at equal intervals, and the airbags (18) are connected to the air pipe connector on the lock bar body (17) through the air passage. The lock bar body (17) and the side strip (14) are locked by the inflation of the airbags (18).

7. The laser cutting equipment for aluminum profiles used in construction according to claim 6, characterized in that: The tube frame (16) is fixedly connected to an air pipe fitting (19) with an air pipe connector. The air pipe fitting (19) is slidably connected to a piston rod (20), and a first spring (21) is installed at the sliding connection between the two. The piston rod (20) is fixedly connected to the lock bar body (17), and the two form a synchronous movement structure.

8. The laser cutting equipment for aluminum profiles used in construction according to claim 6, characterized in that: The tube frame (16) forms a sliding structure inside the track frame (22), and a second spring (23) is installed at the sliding connection between the two. The track frame (22) is integrally set on the protective cover (1). The tube frame (16) carries the locking bar body (17) to dock with the side bar (14). The tube frame (16) is provided with an integrated pin (24), and the pin (24) is slidably connected to the inclined groove (26) opened on the second drive frame (25), and the second drive frame (25) forms a rotating structure on the protective cover (1).

9. The laser cutting equipment for aluminum profiles used in construction according to claim 8, characterized in that: The second drive frame (25) is integrally provided with a second toothed ring (27) that is co-centered with it, and the second toothed ring (27) is meshed with the second gear (28), and the second gear (28) is driven by the second servo motor (29) to form a rotating structure on the protective cover (1).

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