Laser trepanning device for machining stainless steel fireproof door

Abstract

The invention belongs to the technical field of laser cutting, and particularly relates to a stainless steel fireproof door machining laser trepanning device which comprises a base plate, a frame plate is erected at the top of the base plate, four supporting seats are arranged at the top of the base plate and used for placing a stainless steel plate, and a material receiving arc plate is fixedly installed among the four supporting seats. A driving device is fixedly mounted at the bottom of the frame plate; when the plate is cut through the laser head, the cooling assembly continuously cools the trepanning area and cools the plate, the situation that the local high-temperature resistance of the plate is reduced, and the use performance of the stainless steel fireproof door is affected is avoided, meanwhile, the slag collecting assembly collects cutting slag generated by cutting and cleans the cutting area, and the cutting efficiency is improved. And cutting slag generated during cutting is prevented from remaining on the surface of the plate, the high temperature resistance of the plate and the cleanliness of the surface of the plate can be guaranteed when the plate is subjected to laser trepanning operation through mutual cooperation of the cutting device and the laser trepanning device, and laser trepanning operation during plate machining is better facilitated.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, specifically a laser drilling device for processing stainless steel fire doors. Background Technology

[0002] Stainless steel fire doors are building fire protection products that use stainless steel sheets as the core structural material of the door body and have specified fire resistance limits and fire separation functions. They are mainly used in key parts of buildings such as fire compartments and evacuation routes. In the event of a fire, they can block the spread of flames and smoke, buy time for personnel evacuation and fire rescue, and must meet the requirements of national mandatory standards.

[0003] The laser drilling device for stainless steel fire doors is designed specifically for the processing of stainless steel fire doors (door frames and door leaves). It uses high-energy laser as the processing medium and integrates functions such as precise positioning, anti-oxidation temperature control, and waste residue treatment. Its core function is to drill hinge holes, lock holes, ventilation holes, etc., solving the problems of burrs and thermal deformation caused by traditional mechanical drilling, while ensuring the fire resistance performance of the door.

[0004] In current technologies, when using lasers to cut holes in stainless steel, the high temperature during laser cutting can easily cause changes in the austenite lattice of the stainless steel, which may reduce the local high-temperature resistance of the door and thus affect the usability of the stainless steel fire door. In addition, some cutting slag will remain on the surface of the stainless steel after the cutting is completed, which needs to be cleaned in subsequent processing, affecting the aesthetics and wasting time.

[0005] Therefore, the present invention provides a laser drilling device for processing stainless steel fire doors. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a laser drilling device for processing stainless steel fire doors, including a base plate, a frame plate mounted on the top of the base plate, four supports on the top surface of the base plate for placing the stainless steel plate, a receiving arc plate fixedly installed between the four supports, a driving device fixedly installed at the bottom of the frame plate, a laser cutter at the bottom of the driving device, a laser head fixedly installed at the bottom of the laser cutter, a shaft box fixedly installed on the outer wall of the laser cutter, the bottom of the shaft box being able to fit and contact the bottom of the stainless steel plate, the shaft box being located outside the laser cutter, a cooling component being installed inside the shaft box, the cooling component being used to continuously cool the drilling area when the laser cutter cuts the stainless steel plate, and a slag collection component being installed inside the shaft box, the slag collection component including a slag collection ring, the slag collection component being used to collect the cutting slag generated during the cutting of the stainless steel plate by means of the slag collection ring; When laser drilling is required on stainless steel sheets, the sheet is placed between four supports, and then the drive device moves the laser cutter closer to the sheet. The laser cutter then cuts the sheet using its laser head. While the laser head is cutting the sheet, the cooling component continuously cools the drilling area, thus cooling the sheet and preventing a decrease in localized high-temperature resistance, which could affect the performance of the stainless steel fire door. At the same time, the slag collection component collects the cutting slag through a slag collection ring, cleaning the cutting area and preventing slag from remaining on the surface of the sheet. When the drilling operation is finished, the cut waste falls into the guide rail, thus completing the laser drilling operation for stainless steel fire doors. Through the coordinated operation of the cooling component and the slag collection component, the high-temperature resistance and surface cleanliness of the sheet are ensured during laser drilling, making the laser drilling operation more efficient.

[0008] Preferably, the cooling assembly includes an air blowing device, which is fixedly installed inside the shaft box. A guide tube is fixedly installed in the middle of the inner wall of the shaft box. The laser cutter is placed in the middle of the guide tube. An outlet tube is fixedly installed on the inner wall of the air blowing device, and the outlet end of the outlet tube is placed inside the guide tube. When the plate needs to be cut, the drive device drives the laser cutter to approach the plate. When the bottom of the shaft box contacts the surface of the plate, the laser cutter stops moving downward. The laser cutter then drives the laser head to cut and open the plate. At the same time, the air blowing device will pass inert gas through the outlet tube. The inert gas will move downward along the guide tube. The inert gas will flow out through the annular flow of the guide tube to form a sealed air curtain outside the laser head. On the one hand, it can isolate the air to prevent the stainless steel from oxidizing and affecting the aesthetics of the opening. On the other hand, it can quickly remove the surface heat of the stainless steel opening area, playing a preliminary cooling role.

[0009] Preferably, a filter disc is fixedly installed on the inner wall of the shaft box, and multiple air inlets are opened on the inner wall of the filter disc. An air extraction device is fixedly installed on the outer wall of the filter disc, and the air extraction end of the air extraction device is fixedly connected to the multiple air inlets. When the bottom of the shaft box contacts the surface of the plate, the air extraction device will pump the laser head and the plate through the air inlets on the filter disc, and the air extraction device will extract the air between the two. Then, the blowing device can be driven to introduce inert gas between the two. With the annular pumping of the air extraction device, the inert gas will flow in the direction of the airflow pumping of the air extraction device through the opening of the air guide tube. The inert gas will flow into the filter disc, thereby forming an annular flow air curtain, which plays the role of pumping the inert gas.

[0010] Preferably, a liquid spraying device is fixedly installed on the inner wall of the shaft box, and a liquid outlet tube is fixedly installed at the bottom of the liquid spraying device. The outer wall of the liquid outlet tube is fixedly connected to the inner wall of the air guide tube. The liquid outlet tube is placed between the laser cutter and the air guide tube. When the air blowing device introduces inert gas between the laser head and the plate through the air guide tube, the liquid spraying device will spray between the laser head and the plate through the liquid outlet tube. With the suction of the air extraction device, the mist will be sprayed vertically to both sides of the cut. By utilizing the principle of water mist vaporization and heat absorption, deep cooling of the cut is achieved. At the same time, the suction of the air extraction device can also avoid a large amount of water residue causing stainless steel corrosion, thus playing a role in cooling the air blowing device.

[0011] Preferably, the slag collection assembly also includes multiple guide inclined blocks, each fixedly installed on the outer wall of the slag collection ring. These guide inclined blocks form inclined guide grooves, allowing the bottom of the slag collection ring to contact the outer wall of the stainless steel plate. When the laser head cuts a hole in the plate, the slag collection ring moves along the top of the plate as the laser head moves, scraping away the cutting slag. Combined with the suction of the air extraction device, the cutting slag moves into the filter tray along with the inert gas and mist. The slag then follows the inclined guide grooves formed between the guide inclined blocks, ultimately entering the filter tray, thus cleaning the cutting slag generated after cutting.

[0012] Preferably, multiple sliding rods are fixedly installed on the inner wall of the shaft box, and retaining rings are slidably connected to the outer walls of the multiple sliding rods. The outer wall of the retaining rings is slidably connected to the inner wall of the shaft box, and the bottom of the retaining rings can fit against the outer wall of the stainless steel plate. Multiple pressure springs are provided between the top of the retaining rings and the inner wall of the shaft box. The multiple pressure springs are respectively placed outside the multiple sliding rods. A through groove is opened inside the retaining rings. The retaining rings are positioned between the filter cake disc and the slag collection ring. When the driving device drives the shaft box to contact the plate through the laser cutter, the retaining rings will be restricted by the top of the plate and move within the shaft box. The retaining rings will then compress the pressure springs and slide on the sliding rods. When the shaft box... When the bottom of the ring contacts the top of the plate, the retaining ring stops moving within the shaft box. The through groove inside the retaining ring is positioned between the slag collecting ring and the filter plate, thus creating a connection between them. When the cutting is finished, the shaft box loses contact with the top of the plate, and the pressure spring pushes the retaining ring out of the shaft box. The retaining ring then blocks the connection between the slag collecting ring and the filter plate. By setting up the retaining ring, when the cutting is finished, the retaining ring blocks the connection between the two, preventing the cutting slag from falling out of the filter plate. It also facilitates the subsequent collection of cutting slag, playing a role in controlling the flow and closure between the slag collecting ring and the filter plate.

[0013] Preferably, multiple racks are fixedly installed on the outer wall of the retaining ring, and the outer walls of the multiple racks are slidably connected to the inner wall of the shaft box. Multiple gears are rotatably connected to the inner wall of the shaft box. An annular groove is slidably provided between the outer wall of the filter cake and the shaft box. Multiple toothed rods are fixedly installed on the top of the annular groove. The teeth on the multiple toothed rods and racks can respectively mesh with the teeth on the multiple gears. When the cutting is finished, the pressure spring will push the retaining ring out of the shaft box through elasticity. The retaining ring will drive the rack to move. The rack will drive the gear to rotate through meshing with the teeth of the gear. The gear will drive the toothed rod to move in the opposite direction to the rack. The toothed rod will pull the annular groove to move upward. The annular groove will scrape the inner wall of the filter cake, thereby moving the cutting slag that has entered the filter cake into the annular groove upward. This achieves the cleaning operation of the filter cake, prevents the cutting slag from accumulating in the filter cake and blocking the air inlet, and plays the role of scraping and moving the slag.

[0014] Preferably, a slag storage cavity is formed between the inner wall of the shaft box and the air extraction device. The inner wall of the annular groove and the outer wall of the filter disc are both opened as inclined sliding surfaces. The bottom end of the annular groove can be flush with the top of the filter disc. When the retaining ring is completely removed from the shaft box, the toothed rod will pull the annular groove to be flush with the top of the filter disc. The slag scraped out in the annular groove will move along the inner wall of the annular groove to the outer wall of the filter disc, and finally fall into the slag storage cavity along the outer wall of the filter disc for collection, thus playing the role of slag collection and storage.

[0015] Preferably, a ring shaft is fixedly installed on the outer wall of the retaining ring. The outer wall of the ring shaft is slidably connected to the outer wall of the air guide tube. Multiple hinge shafts are rotatably connected to the inner wall of the ring shaft. A support rod is fixedly installed on the outer wall of each of the multiple hinge shafts. The outer wall of each of the multiple support rods is slidably connected to the inner wall of the ring shaft. A shaft is fixedly installed at the bottom end of each of the multiple support rods. A roller is rotatably connected to the outer wall of each of the multiple shafts. A return spring is provided between the outer wall of each of the multiple support rods and the inner wall of the ring shaft. The outer wall of each of the multiple shafts can slide in contact with the outer wall of each of the multiple inclined guide grooves. When the pressure spring is pushed by the elastic force... When the moving retaining ring slides out of the shaft box, it will drive the ring shaft to move downwards. The ring shaft will then drive the roller to move via the support rod. When the roller contacts the slag collecting ring, the roller will move along the inclined guide groove between multiple guide blocks as the ring shaft continues to move downwards. The roller will then rotate on the shaft rod. The support rod will then rotate by squeezing the reset spring inside the ring shaft via the hinge shaft. This will push the roller into the inclined guide groove, preventing the cutting slag from getting too large and stuck in the inclined guide groove, thus affecting the subsequent slag collection operation and clearing the inclined guide groove.

[0016] Preferably, four guide rails are fixedly installed on the top of the shelf, and electric sliders are slidably installed on the inner walls of the four guide rails. The bottom ends of the four supports are fixedly connected to the tops of the four electric sliders respectively. When the sheet material is placed, by driving the four electric sliders to work with each other in the guide rails, the electric sliders will drive the four supports to adjust relative to each other, thereby adjusting the four supports to a suitable position for placing the sheet material. By driving the supports to adjust relative to each other through the electric sliders, this device can cut and open holes in multiple sheets of different sizes, thus serving the purpose of adjusting and placing the sheet material.

[0017] The beneficial effects of this invention are as follows: 1. The laser drilling device for processing stainless steel fire doors according to the present invention, when the laser head cuts the plate, the cooling component continuously cools the drilling area to cool the plate and prevent the plate's local high-temperature resistance from decreasing, which would affect the performance of the stainless steel fire door. At the same time, the slag collection component collects the cutting slag generated during cutting and cleans the cutting area to prevent the cutting slag generated during cutting from remaining on the surface of the plate. The two work together to ensure the high-temperature resistance and surface cleanliness of the plate during laser drilling, which is more conducive to the laser drilling operation during plate processing.

[0018] 2. The laser drilling device for processing stainless steel fire doors according to the present invention, when the laser cutter drives the laser head to cut and drill holes in the plate, the air blowing device will pass inert gas through the air outlet tube. The inert gas will move downward along the guide tube and flow out of the air outlet tube in an annular manner to form a sealed air curtain outside the laser head. On the one hand, it can isolate the air to prevent the stainless steel from oxidizing and affecting the aesthetics of the hole, and on the other hand, it can quickly remove the surface heat of the stainless steel hole area.

[0019] 3. The laser drilling device for processing stainless steel fire doors according to the present invention, when the blowing device introduces inert gas between the laser head and the plate through the air guide tube, the spraying device sprays the liquid between the laser head and the plate through the liquid outlet tube. With the suction of the air extraction device, the mist is sprayed vertically to both sides of the cut. Utilizing the principle of water mist vaporization and heat absorption, deep cooling of the cut is achieved. In addition, the suction of the air extraction device can also prevent a large amount of moisture residue from causing stainless steel corrosion, thus playing a role in cooling in conjunction with the inert gas.

[0020] 4. The laser drilling device for processing stainless steel fire doors according to the present invention, when the retaining ring slides out of the shaft box, the retaining ring will drive the ring shaft to move downward. The ring shaft will then drive the roller to move through the frame rod. When the roller contacts the slag collection ring, through the continuous downward movement of the ring shaft, the roller will move along the inclined guide groove between multiple guide blocks. The roller will then rotate on the shaft rod. The frame rod will then rotate by squeezing the reset spring in the ring shaft through the hinge shaft, thereby pushing the roller into the inclined guide groove, preventing the cutting slag from being too large and stuck in the inclined guide groove, thus affecting the subsequent slag collection operation.

[0021] 5. The laser drilling device for processing stainless steel fire doors according to the present invention, through the movement of the laser head for cutting, the slag collection ring moves on the top of the plate. The slag collection ring will scoop up the cutting slag generated by the cutting by moving. With the suction of the air extraction device, the cutting slag will move into the slag filter tray along with the inert gas and mist. The cutting slag will move along the multiple inclined guide grooves formed between multiple guide blocks and finally enter the slag filter tray, thereby realizing the cleaning of the cutting slag generated after cutting.

[0022] 6. The laser drilling device for processing stainless steel fire doors according to the present invention, when the retaining ring slides out of the shaft box, the retaining ring will drive the rack to move, and the rack will drive the gear to rotate through the meshing of the teeth of the gear. The gear will drive the rack to move in the opposite direction to the rack, and the rack will pull the ring groove to move upward. The ring groove will scrape the inner wall of the filter cake plate, thereby moving the cutting slag scraped into the filter cake plate upward, thereby achieving the cleaning operation of the filter cake plate and preventing the cutting slag from accumulating in the filter cake plate and blocking the air inlet. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is an overall diagram of the invention; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram of the structure of the shaft box in this invention; Figure 4 This is a schematic diagram of the slag collection ring in this invention; Figure 5 This is a schematic diagram of the structure of the air guide tube in this invention; Figure 6 This is a schematic diagram of the structure of the guide ramp in this invention; Figure 7 This is a schematic diagram of the structure of the retaining ring in this invention; Figure 8 This is a schematic diagram of the structure of the filter cake plate in this invention.

[0025] In the diagram: 1. Frame plate; 101. Seat plate; 2. Support; 3. Drive device; 4. Guide rail; 401. Electric slider; 5. Laser cutter; 6. Shaft box; 601. Slag collection ring; 602. Air guide tube; 603. Guide block; 7. Air blowing device; 701. Air outlet tube; 8. Liquid spraying device; 801. Liquid outlet tube; 9. Laser head; 10. Air extraction device; 1001. Air inlet. 11. Ring shaft; 1101. Frame rod; 1102. Shaft rod; 1103. Roller; 1104. Return spring; 1105. Hinge shaft; 12. Retaining ring; 1201. Pressure spring; 1202. Limiting rod; 1203. Through groove; 13. Slag storage chamber; 14. Ring groove; 1401. Toothed rod; 1402. Toothed rack; 1403. Gear; 15. Filter cake plate; 16. Receiving arc plate. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figures 1 to 8 As shown in the embodiment of the present invention, a laser drilling device for processing stainless steel fire doors includes a base plate 101. A frame plate 1 is mounted on the top of the base plate 101. Four supports 2 are provided on the top surface of the base plate 101 for placing stainless steel plates. A receiving arc plate 16 is fixedly installed between the four supports 2. A driving device 3 is fixedly installed at the bottom of the frame plate 1. A laser cutter 5 is provided at the bottom of the driving device 3. A laser head 9 is fixedly installed at the bottom of the laser cutter 5. A shaft box 6 is fixedly installed on the outer wall of the laser cutter 5. The bottom of the shaft box 6 can be in close contact with the bottom of the stainless steel plate. The shaft box 6 is located outside the laser cutter 5. A cooling component is provided inside the shaft box 6. The cooling component is used to continuously cool the drilling area when the laser cutter 5 cuts the stainless steel plate. A slag collection component is provided inside the shaft box 6. The slag collection component includes a slag collection ring 601. The slag collection component is used to collect the cutting slag generated by the cutting through the slag collection ring 601 when the laser cutter 5 cuts the stainless steel plate. Because the high temperature during laser drilling can easily cause changes in the austenite lattice of stainless steel, it may reduce the local high temperature resistance of the door, thus affecting the usability of the stainless steel fire door. In addition, some cutting slag will remain on the surface of the stainless steel after the cutting is completed, which needs to be cleaned in the subsequent processing, affecting the appearance and wasting time. When laser drilling is required on a stainless steel sheet, the sheet is placed between four supports 2, and then the drive device 3 moves the laser cutter 5 closer to the sheet. The laser cutter 5 then cuts the sheet through the laser head 9. While the laser head 9 is cutting the sheet, the cooling component continuously cools the drilling area, thus cooling the sheet and preventing a decrease in localized high-temperature resistance, which could affect the performance of the stainless steel fire door. At the same time, the slag collection component collects the cutting slag generated during cutting through the slag collection ring 601, cleaning the cutting area and preventing cutting slag from remaining on the surface of the sheet. When the cutting and drilling operation is completed, the cut waste will fall into the guide rail 4, thus realizing the laser drilling operation during the processing of stainless steel fire doors. Through the cooperation of the cooling component and the slag collection component, the high temperature resistance and surface cleanliness of the plate can be guaranteed when laser drilling is performed on the plate, which is more conducive to the laser drilling operation during the processing of the plate. It should be noted that the driving device 3 can be composed of a power drive source, a connecting part and a guide groove plate, etc. It is used to drive the laser cutter 5 to move and cut the hole on the top of the plate through the connecting part via the power drive source. This is existing technology, so it is only described in this solution and the specific structure is not shown.

[0028] like Figures 4 to 5 As shown, the cooling assembly includes an air blowing device 7, which is fixedly installed inside the shaft box 6. An air guide tube 602 is fixedly installed in the middle of the inner wall of the shaft box 6. The laser cutter 5 is placed in the middle of the air guide tube 602. An air outlet tube 701 is fixedly installed in the inner wall of the air blowing device 7, and the air outlet end of the air outlet tube 701 is placed inside the air guide tube 602. When cutting the sheet metal, the drive device 3 moves the laser cutter 5 closer to the sheet metal. When the bottom of the shaft box 6 contacts the surface of the sheet metal, the laser cutter 5 stops moving downwards. The laser cutter 5 then drives the laser head 9 to cut and open holes in the sheet metal. At the same time, the air blowing device 7 releases inert gas through the air outlet pipe 701. The inert gas moves downwards along the guide pipe 602 and flows out in an annular shape through the guide pipe 602, forming a sealed air curtain outside the laser head 9. This can isolate the stainless steel from air to prevent oxidation and affect the aesthetics of the opening, and at the same time, it can quickly remove the surface heat of the stainless steel opening area, playing a preliminary cooling role. It should be noted that the inert gas can be argon. The air blowing device 7 can be composed of a high-pressure gas cylinder and a control valve, etc., and is used to push the inert gas to flow through the high-pressure gas cylinder. This is existing technology, so it is only described in this solution and the specific structure is not shown.

[0029] like Figures 4 to 8As shown, a filter disc 15 is fixedly installed on the inner wall of the shaft box 6. Multiple air inlets 1001 are opened on the inner wall of the filter disc 15. An air extraction device 10 is fixedly installed on the outer wall of the filter disc 15. The air extraction end of the air extraction device 10 is fixedly connected to the multiple air inlets 1001. When the bottom of the shaft box 6 contacts the surface of the plate, the suction device 10 will pump the air between the laser head 9 and the plate through the air inlet 1001 on the filter plate 15. The suction device 10 will then extract the air between the two, and then drive the blowing device 7 to introduce inert gas between them. With the annular pumping of the suction device 10, the inert gas will flow in the direction of the airflow of the suction device 10 through the opening of the air guide tube 602. The inert gas will flow into the filter plate 15, thereby forming an annular flow air curtain, which plays the role of pumping the inert gas. It should be noted that the suction device 10 can be a vacuum pump, which is existing technology. Therefore, it is only described in this solution and the specific structure is not shown. Furthermore, an inert gas return filter mechanism can be added between the suction device 10 and the blowing device 7. When the suction device 10 extracts the inert gas, it can be filtered and returned to the blowing device 7 through the return filter mechanism for recycling.

[0030] like Figures 4 to 5 As shown, a liquid spraying device 8 is fixedly installed on the inner wall of the shaft box 6, and a liquid outlet tube 801 is fixedly installed at the bottom of the liquid spraying device 8. The outer wall of the liquid outlet tube 801 is fixedly connected to the inner wall of the air guide tube 602. The liquid outlet tube 801 is placed between the laser cutter 5 and the air guide tube 602. When the blowing device 7 introduces inert gas between the laser head 9 and the plate through the air guide tube 602, the spraying device 8 sprays the laser head 9 and the plate through the liquid outlet tube 801. With the suction of the suction device 10, the mist is sprayed vertically to both sides of the cut. Utilizing the principle of water mist vaporization and heat absorption, deep cooling of the cut is achieved. The suction of the suction device 10 also prevents a large amount of moisture residue from causing stainless steel corrosion, thus playing a role in cooling the blowing device 7. It should be noted that the liquid outlet tube 801 is equipped with a micro-mist cooling channel. The spraying device 8 can spray liquid out in the form of mist through the liquid outlet tube 801. The spraying device 8 can be composed of a liquid supply pump and a liquid storage tank, etc. The liquid supply pump is used to discharge the liquid in the liquid storage tank. This is existing technology, so it is only described in this solution and the specific structure is not shown. The liquid sprayed out by the spraying device 8 can be a special cutting fluid or liquid nitrogen, etc.

[0031] like Figures 5 to 6As shown, the slag collection assembly also includes guide inclined blocks 603. There are multiple guide inclined blocks 603, and multiple guide inclined blocks 603 are fixedly installed on the outer wall of the slag collection ring 601. An inclined guide groove is formed between the multiple guide inclined blocks 603, and the bottom of the slag collection ring 601 can be in close contact with the outer wall of the stainless steel plate. When the laser head 9 cuts and opens a hole in the plate, the slag collection ring 601 moves on top of the plate as the laser head 9 moves. The slag collection ring 601 then scrapes the cutting slag generated during the cutting process. With the help of the suction device 10, the cutting slag moves into the filter plate 15 along with the inert gas and mist. The cutting slag then moves along the multiple inclined guide grooves formed between the multiple guide blocks 603 and finally enters the filter plate 15, thereby cleaning the cutting slag generated after cutting and achieving the function of cleaning the cutting slag.

[0032] like Figures 5 to 7 As shown, multiple sliding rods 1202 are fixedly installed on the inner wall of the shaft box 6. A retaining ring 12 is slidably connected to the outer wall of the multiple sliding rods 1202. The outer wall of the retaining ring 12 is slidably connected to the inner wall of the shaft box 6. The bottom of the retaining ring 12 can fit against the outer wall of the stainless steel plate. Multiple pressure springs 1201 are provided between the top of the retaining ring 12 and the inner wall of the shaft box 6. The multiple pressure springs 1201 are respectively placed outside the multiple sliding rods 1202. A through groove 1203 is opened inside the retaining ring 12. The retaining ring 12 is located between the filter cake plate 15 and the slag collection ring 601. When the driving device 3 drives the shaft box 6 to contact the plate through the laser cutter 5, the retaining ring 12 will be restricted by the top of the plate and move within the shaft box 6. The retaining ring 12 will then compress the bearing spring 1201 and slide on the limiting rod 1202. When the bottom of the shaft box 6 contacts the top of the plate, the retaining ring 12 will stop moving within the shaft box 6. The through groove 1203 in the retaining ring 12 will then be positioned between the slag collecting ring 601 and the filter disc 15, thus creating a through connection between the two. When the cutting is finished, the shaft box 6 loses contact with the top of the plate, and the bearing spring... Spring 1201 will elastically push the retaining ring 12 to slide out of the shaft box 6. The retaining ring 12 will then block the gap between the slag collecting ring 601 and the filter plate 15. By setting the retaining ring 12, when the cutting is finished, the retaining ring 12 will block the gap between the two, which can prevent the cutting slag in the filter plate 15 from falling out. It also facilitates the subsequent collection of cutting slag. It plays a role in controlling the flow and closure between the slag collecting ring 601 and the filter plate 15. It should be noted that in the initial state, the retaining ring 12 is in the closed state between the slag collecting ring 601 and the filter plate 15.

[0033] like Figures 7 to 8As shown, multiple racks 1402 are fixedly installed on the outer wall of the retaining ring 12. The outer walls of the multiple racks 1402 are slidably connected to the inner wall of the shaft box 6. Multiple gears 1403 are rotatably connected to the inner wall of the shaft box 6. An annular groove 14 is slidably provided between the outer wall of the filter disc 15 and the shaft box 6. Multiple toothed rods 1401 are fixedly installed on the top of the annular groove 14. The teeth on the multiple toothed rods 1401 and the racks 1402 can respectively mesh with the teeth on the multiple gears 1403. When the cutting is finished, the pressure spring 1201 will push the retaining ring 12 out of the shaft box 6 through elasticity. The retaining ring 12 will drive the rack 1402 to move. The rack 1402 will then drive the gear 1403 to rotate through the meshing of the teeth of the gear 1403. The gear 1403 will drive the rack 1401 to move in the opposite direction to the rack 1402. The rack 1401 will then pull the ring groove 14 to move upward. The ring groove 14 will then scrape the inner wall of the filter cake plate 15, thereby scraping the cutting slag that has entered the filter cake plate 15 upward. This achieves the cleaning operation of the filter cake plate 15, preventing the cutting slag from accumulating in the filter cake plate 15 and causing blockage of the air inlet 1001, and playing the role of scraping and moving the slag.

[0034] like Figures 5 to 8 As shown, a slag storage chamber 13 is formed between the inner wall of the shaft box 6 and the air extraction device 10. The inner wall of the annular groove 14 and the outer wall of the filter plate 15 are both opened as inclined surfaces, and the bottom end of the annular groove 14 can be flush with the top of the filter plate 15. When the retaining ring 12 is completely removed from the shaft box 6, the toothed rod 1401 will pull the ring groove 14 to be flush with the top of the filter cake plate 15. The slag scraped out in the ring groove 14 will move along the inner wall of the ring groove 14 to the outer wall of the filter cake plate 15, and finally fall into the slag storage chamber 13 along the outer wall of the filter cake plate 15 for collection, thus playing the role of slag collection and storage. It should be noted that both the ring groove 14 and the filter cake plate 15 are made of materials with non-stick properties.

[0035] like Figures 5 to 6 As shown, a ring shaft 11 is fixedly installed on the outer wall of the retaining ring 12. The outer wall of the ring shaft 11 is slidably connected to the outer wall of the air guide tube 602. Multiple hinge shafts 1105 are rotatably connected to the inner wall of the ring shaft 11. A support rod 1101 is fixedly installed on the outer wall of each of the multiple hinge shafts 1105. The outer wall of each of the multiple support rods 1101 is slidably connected to the inner wall of the ring shaft 11. A shaft 1102 is fixedly installed at the bottom end of each of the multiple support rods 1101. A roller 1103 is rotatably connected to the outer wall of each of the multiple support rods 1101. A return spring 1104 is provided between the outer wall of each of the multiple support rods 1101 and the inner wall of the ring shaft 11. The outer walls of each of the multiple shafts 1102 can slide in contact with the outer walls of multiple inclined guide grooves. When the pressure spring 1201 pushes the retaining ring 12 out of the shaft box 6 through elasticity, the retaining ring 12 will drive the ring shaft 11 to move downward. The ring shaft 11 will then drive the roller 1103 to move through the support rod 1101. When the roller 1103 contacts the slag collecting ring 601, the roller 1103 will move along the inclined guide groove between multiple guide blocks 603 through the continuous downward movement of the ring shaft 11. The roller 1103 will then rotate on the shaft 1102. The support rod 1101 will then squeeze the reset spring 1104 in the ring shaft 11 through the hinge shaft 1105 to rotate, thereby pushing the roller 1103 into the inclined guide groove, preventing the cutting slag from being too large and getting stuck in the inclined guide groove, affecting the subsequent slag collecting operation, and playing the role of clearing the inclined guide groove.

[0036] like Figures 1 to 2 As shown, four guide rails 4 are fixedly installed on the top of the frame plate 1, and electric sliders 401 are slidably arranged on the inner walls of the four guide rails 4. The bottom ends of the four supports 2 are fixedly connected to the tops of the four electric sliders 401 respectively. When placing the sheet material, by driving the four electric sliders 401 to work with each other in the guide rail 4, the electric sliders 401 will drive the four supports 2 to adjust relative to each other, so that the four supports 2 are adjusted to a suitable position for placing the sheet material. By driving the supports 2 to adjust relative to each other through the electric sliders 401, this device can cut and open holes in multiple sheets of different sizes, thus playing the role of adjusting and placing the sheet material.

[0037] Working principle: When laser drilling is required on stainless steel plates, the plate is placed between four supports 2, and then the drive device 3 drives the laser cutter 5 to approach the plate. The laser cutter 5 will then laser cut the plate through the laser head 9. When the laser head 9 cuts the plate, the cooling component is driven to continuously cool the drilling area, thereby cooling the plate and preventing the plate's local high temperature resistance from decreasing, which would affect the performance of the stainless steel fire door. At the same time, the slag collection component is driven to collect the cutting slag generated during cutting through the slag collection ring 601, cleaning the cutting area and preventing the cutting slag generated during cutting from remaining on the surface of the plate. When the cutting and drilling operation is finished, the cut waste will fall into the guide rail 4, thus realizing the laser drilling operation during the processing of stainless steel fire doors. Through the cooperation of the cooling component and the slag collection component, the high temperature resistance and surface cleanliness of the plate can be guaranteed during the laser drilling operation, which is more conducive to the laser drilling operation during the processing of the plate. When the sheet metal needs to be cut, the drive device 3 drives the laser cutter 5 to approach the sheet metal. When the bottom of the shaft box 6 contacts the surface of the sheet metal, the laser cutter 5 stops moving downward. The laser cutter 5 then drives the laser head 9 to cut and open the sheet metal. At the same time, the air blowing device 7 will pass inert gas through the air outlet pipe 701. The inert gas will move downward along the guide pipe 602. The inert gas will flow out through the annular flow of the guide pipe 602 to form a sealed air curtain outside the laser head 9. On the one hand, it can isolate the air to prevent the stainless steel from oxidizing and affecting the aesthetics of the opening. On the other hand, it can quickly remove the surface heat of the stainless steel opening area and play a preliminary cooling role. When the bottom of the shaft box 6 contacts the surface of the plate, the suction device 10 will pump the air between the laser head 9 and the plate through the air inlet 1001 on the filter plate 15. The suction device 10 will then extract the air between the two, and then drive the blowing device 7 to introduce inert gas between the two. With the annular pumping of the suction device 10, the inert gas will flow in the direction of the airflow of the suction device 10 through the opening of the air guide tube 602. The inert gas will flow into the filter plate 15, thereby forming an annular flow air curtain, which plays the role of pumping the inert gas. When the blowing device 7 introduces inert gas between the laser head 9 and the plate through the air guide tube 602, the spraying device 8 sprays the laser head 9 and the plate through the liquid outlet tube 801. With the suction of the air extraction device 10, the mist will be sprayed vertically to both sides of the cut. By utilizing the principle of water mist vaporization and heat absorption, deep cooling of the cut is achieved. At the same time, the suction of the air extraction device 10 can also prevent a large amount of moisture residue from causing stainless steel corrosion, thus playing a role in cooling the air blowing device 7. When the laser head 9 cuts a hole in the plate, the slag collection ring 601 moves on top of the plate as the laser head 9 moves. The slag collection ring 601 scrapes the cutting slag generated during the cutting process. With the help of the suction device 10, the cutting slag moves into the filter plate 15 along with the inert gas and mist. The cutting slag moves along the multiple inclined guide grooves formed between the multiple guide blocks 603 and finally enters the filter plate 15, thereby cleaning the cutting slag generated after cutting and playing the role of cleaning cutting slag. When the driving device 3 drives the shaft box 6 to contact the plate through the laser cutter 5, the retaining ring 12 will be restricted by the top of the plate and move within the shaft box 6. The retaining ring 12 will then compress the bearing spring 1201 and slide on the limiting rod 1202. When the bottom of the shaft box 6 contacts the top of the plate, the retaining ring 12 will stop moving within the shaft box 6. The through groove 1203 in the retaining ring 12 will then be positioned between the slag collecting ring 601 and the filter disc 15, thus ensuring that the two are in a connected state. When the cutting is finished... When the shaft box 6 loses contact with the top of the plate, the pressure spring 1201 will push the retaining ring 12 out of the shaft box 6 through elasticity. The retaining ring 12 will then block the slag collection ring 601 and the filter plate 15. By setting the retaining ring 12, when the cutting is finished, the retaining ring 12 will block the two, which can prevent the cutting slag in the filter plate 15 from falling out. At the same time, it is also convenient for the subsequent collection of cutting slag, and plays a role in controlling the flow and closure between the slag collection ring 601 and the filter plate 15. When the cutting is finished, the pressure spring 1201 will push the retaining ring 12 out of the shaft box 6 through elasticity. The retaining ring 12 will drive the rack 1402 to move. The rack 1402 will then drive the gear 1403 to rotate through the meshing of the teeth of the gear 1403. The gear 1403 will drive the rack 1401 to move in the opposite direction to the rack 1402. The rack 1401 will then pull the ring groove 14 to move upward. The ring groove 14 will then scrape the inner wall of the filter cake plate 15, thereby scraping the cutting slag that has entered the filter cake plate 15 upward. This will achieve the cleaning operation of the filter cake plate 15, prevent the cutting slag from accumulating in the filter cake plate 15 and causing blockage of the air inlet 1001, and play the role of scraping and moving the slag. When the retaining ring 12 is completely removed from the shaft box 6, the toothed rod 1401 will pull the ring groove 14 to be flush with the top of the filter cake plate 15. The slag scraped out in the ring groove 14 will move along the inner wall of the ring groove 14 to the outer wall of the filter cake plate 15, and finally fall into the slag storage chamber 13 along the outer wall of the filter cake plate 15 for collection, thus playing the role of slag collection and storage. When the pressure spring 1201 pushes the retaining ring 12 out of the shaft box 6 through elasticity, the retaining ring 12 will drive the ring shaft 11 to move downward. The ring shaft 11 will then drive the roller 1103 to move through the support rod 1101. When the roller 1103 contacts the slag collecting ring 601, the roller 1103 will move along the inclined guide groove between multiple guide blocks 603 through the continuous downward movement of the ring shaft 11. The roller 1103 will then rotate on the shaft 1102. The support rod 1101 will then squeeze the reset spring 1104 in the ring shaft 11 through the hinge shaft 1105 to rotate, thereby pushing the roller 1103 into the inclined guide groove, preventing the cutting slag from being too large and stuck in the inclined guide groove, affecting the subsequent slag collecting operation, and playing the role of clearing the inclined guide groove. When placing the sheet material, by driving the four electric sliders 401 to work with each other in the guide rail 4, the electric sliders 401 will drive the four supports 2 to adjust relative to each other, so that the four supports 2 are adjusted to a suitable position for placing the sheet material. By driving the supports 2 to adjust relative to each other through the electric sliders 401, this device can cut and open holes in multiple sheets of different sizes, thus playing the role of adjusting and placing the sheet material.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser drilling device for processing stainless steel fire doors, characterized in that: The system includes a base plate, a frame plate on top of the base plate, four supports on the top surface of the base plate for holding the stainless steel plate, and a receiving arc plate fixedly installed between the four supports. A drive device is fixedly installed at the bottom of the frame plate, and a laser cutter is installed at the bottom of the drive device. A laser head is fixedly installed at the bottom of the laser cutter, and a shaft box is fixedly installed on the outer wall of the laser cutter. The bottom of the shaft box can fit in close contact with the bottom of the stainless steel plate. The shaft box is located outside the laser cutter, and a cooling component is installed inside the shaft box. The cooling component is used to continuously cool the opening area when the laser cutter cuts the stainless steel plate. A slag collection component is installed inside the shaft box, including a slag collection ring. The slag collection component is used to collect the cutting slag generated during the laser cutter cutting the stainless steel plate.

2. The laser drilling device for processing stainless steel fire doors according to claim 1, characterized in that: The cooling assembly includes an air blowing device, which is fixedly installed inside the shaft box. An air guide tube is fixedly installed in the middle of the inner wall of the shaft box. The laser cutter is placed in the middle of the air guide tube. An air outlet tube is fixedly installed on the inner wall of the air blowing device, and the air outlet end of the air outlet tube is placed inside the air guide tube.

3. The laser drilling device for processing stainless steel fire doors according to claim 2, characterized in that: A filter disc is fixedly installed on the inner wall of the shaft box. Multiple air inlets are opened on the inner wall of the filter disc. An air extraction device is fixedly installed on the outer wall of the filter disc. The air extraction end of the air extraction device is fixedly connected to the multiple air inlets.

4. The laser drilling device for processing stainless steel fire doors according to claim 3, characterized in that: A liquid spraying device is fixedly installed on the inner wall of the shaft box. A liquid outlet tube is fixedly installed at the bottom of the liquid spraying device. The outer wall of the liquid outlet tube is fixedly connected to the inner wall of the air guide tube. The liquid outlet tube is placed between the laser cutter and the air guide tube.

5. The laser drilling device for processing stainless steel fire doors according to claim 4, characterized in that: The slag collection assembly also includes guide inclined blocks, and there are multiple guide inclined blocks. All guide inclined blocks are fixedly installed on the outer wall of the slag collection ring, and inclined guide grooves are formed between the multiple guide inclined blocks. The bottom of the slag collection ring can fit and contact the outer wall of the stainless steel plate.

6. The laser drilling device for processing stainless steel fire doors according to claim 5, characterized in that: Multiple sliding rods are fixedly installed on the inner wall of the shaft box. A retaining ring is slidably connected to the outer wall of the multiple sliding rods. The outer wall of the retaining ring is slidably connected to the inner wall of the shaft box. The bottom of the retaining ring can fit against the outer wall of the stainless steel plate. Multiple pressure springs are set between the top of the retaining ring and the inner wall of the shaft box. The multiple pressure springs are respectively placed outside the multiple sliding rods. A through groove is opened inside the retaining ring. The retaining ring is set between the filter cake plate and the slag collection ring.

7. The laser drilling device for processing stainless steel fire doors according to claim 6, characterized in that: Multiple racks are fixedly installed on the outer wall of the retaining ring. The outer walls of the multiple racks are slidably connected to the inner wall of the shaft box. Multiple gears are rotatably connected to the inner wall of the shaft box. An annular groove is slidably provided between the outer wall of the filter disc and the shaft box. Multiple toothed rods are fixedly installed on the top of the annular groove. The teeth on the multiple toothed rods and racks can respectively mesh with the teeth on the multiple gears.

8. The laser drilling device for processing stainless steel fire doors according to claim 7, characterized in that: A slag storage chamber is formed between the inner wall of the shaft box and the air extraction device. The inner wall of the annular groove and the outer wall of the filter disc are both opened as inclined sliding surfaces, and the bottom end of the annular groove can be flush with the top of the filter disc.

9. The laser drilling device for processing stainless steel fire doors according to claim 8, characterized in that: A ring shaft is fixedly installed on the outer wall of the retaining ring. The outer wall of the ring shaft is slidably connected to the outer wall of the air guide tube. Multiple hinge shafts are rotatably connected to the inner wall of the ring shaft. A support rod is fixedly installed on the outer wall of each of the multiple hinge shafts. The outer wall of each of the multiple support rods is slidably connected to the inner wall of the ring shaft. A shaft is fixedly installed at the bottom end of each of the multiple support rods. A roller is rotatably connected to the outer wall of each of the multiple shafts. A return spring is provided between the outer wall of each of the multiple support rods and the inner wall of the ring shaft. The outer wall of each of the multiple shafts can slide in contact with the outer wall of each of the multiple inclined guide grooves.

10. A laser drilling device for processing stainless steel fire doors according to claim 9, characterized in that: Four guide rails are fixedly installed on the top of the frame, and electric sliders are slidably installed on the inner walls of the four guide rails. The bottom ends of the four supports are fixedly connected to the tops of the four electric sliders respectively.

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