Metal material laser cutting device for building construction

Abstract

The invention relates to the related technical field of metal material laser cutting, in particular to a metal material laser cutting device for building construction, which comprises a cutting machine body, a cutting frame with a laser cutting head and a cutting bottom plate for bearing a metal plate, and an in-out lifting assembly for driving the cutting bottom plate to move is arranged in the cutting machine body. The in-out lifting assembly drives the cutting bottom plate to be lifted to the bottom of the laser cutting head, a slag discharging assembly is arranged at the position, located at the bottom of the laser cutting head, of the cutting bottom plate, and the in-out lifting assembly drives the cutting bottom plate to enter a swing cleaning assembly arranged in the cutting machine body. High-temperature slag and leftover materials generated by cutting are pushed to an external dust collection system in a concentrated mode, the swing cleaning assembly executes fan-shaped swing along the three-dimensional track of the cutting bottom plate, adhered residual slag is thoroughly stripped, it is guaranteed that no residue exists in gaps of cutting supporting strips, and the cooling cleaning assembly sprays gas to the surface of a metal plate to achieve cooling.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology for metal materials, and in particular to a laser cutting device for metal materials used in building construction. Background Technology

[0002] Laser cutting involves focusing a laser beam emitted from a laser into a high-power-density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. As the relative position of the beam and the workpiece moves, a kerf is eventually formed in the material, thus achieving the purpose of cutting. Laser cutting is widely used in metal cutting due to its advantages such as high precision, fast cutting speed, no limitation on cutting patterns, smooth cuts, and low processing costs.

[0003] Currently, when laser cutting metal sheets used in road bridges and river crossing projects, when the sheet thickness exceeds 10mm, slag tends to accumulate on the bottom of the cut. This is mainly due to increased heat conduction loss in thicker plates and higher slag viscosity, making it difficult to remove effectively. In addition, molten metal slag splashed during the cutting process falls directly and adheres to the surface of the cutting table. These residues cause unevenness on the table surface, significantly reducing the flatness of the metal sheets placed on it and severely affecting the cutting accuracy. Furthermore, because these metal sheets are large, manual labor is required to insert the sheet into the area under the laser cutting head during loading. This process is not only inefficient but also makes it difficult to effectively check the flatness of the sheet during loading. Poor contact between the sheet and the uneven table surface further reduces the quality of laser cutting. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a laser cutting device for metal materials used in building construction.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser cutting device for metal materials used in building construction, comprising a cutting machine body, a cutting frame with a laser cutting head, and a cutting base plate for supporting metal plates. The cutting machine body is provided with an infeed lifting component that drives the cutting base plate to move. The infeed lifting component lifts the cutting base plate to the bottom of the laser cutting head. The infeed lifting component then drives the cutting base plate into a swing cleaning component provided inside the cutting machine body. The swing cleaning plate in the swing cleaning component performs a fan-shaped cleaning motion on the bottom of the cutting base plate, cleaning and collecting the slag adhering to the cutting base plate. The cutting machine body is provided with a U-shaped collection tray for collecting the falling slag. The top of the U-shaped collection tray is also equipped with a fixed cleaning plate for fixing, cleaning and scraping the cutting base plate. The cutting machine body is equipped with a cooling and cleaning component at the end away from the slag collection tray. The inlet and outlet lifting component drives the metal plate on the cutting base plate into the cooling seat set in the cooling and cleaning component. The cooling blower set in the cooling and cleaning component, together with the blower nozzle under the cooling seat, cools and cleans the metal plate after laser cutting.

[0006] As a preferred technical solution of the present invention, the top of the cutting machine body is connected to a cutting frame via a fixed guide rail, and the cutting base plate is movable at the bottom position of the cutting frame. A servo motor that drives the cutting base plate is installed at the bottom of the cutting machine body at one end away from the molten slag collection tray. The output end of the servo motor is connected to a U-shaped drive plate via a screw. The lifting assembly includes a U-shaped base plate and a lifting column fixedly installed at the bottom of the cutting machine body. The U-shaped base plate has a U-shaped lifting groove, which is horizontal in the middle and inclined at both ends. The lifting column is slidably connected in the U-shaped lifting groove, and the size of the lifting column matches the size of the U-shaped lifting groove. The lifting column moves along the U-shaped lifting groove. The top of the U-shaped drive plate has a T-shaped sliding groove, in which a T-shaped slider is slidably connected. The T-shaped slider is fixedly installed at both ends of the lifting column. When the lifting column moves horizontally, it drives the T-shaped slider to move in the T-shaped sliding groove. The two ends of the lifting column are fixedly installed at the bottom of the cutting base plate through connecting plates. A cutting support strip is fixedly installed at the center of the cutting base plate. The U-shaped base plate has a limiting groove that matches the size of the U-shaped drive plate, and the two ends of the U-shaped drive plate move through the limiting groove.

[0007] As a preferred technical solution of the present invention, the slag discharge assembly further includes a slag discharge piston plate that moves inside the slag discharge cylinder. The slag discharge cylinder is fixedly installed on the end of the U-shaped base plate near the slag collection plate, and a movable rod is fixedly installed on the end of the cutting base plate near the slag collection plate. A slag discharge piston rod is fixedly installed on the top of the slag discharge piston plate, and the top of the slag discharge piston rod extends through to the outside of the top of the slag discharge cylinder and is fixedly installed with a movable ring that matches the size of the movable rod. The movable rod moves through the movable ring, and the slag discharge piston plate under the slag discharge piston rod is driven to move by the movable rod. The slag collection pan has a slag discharge jet seat fixedly installed at one end near the loop-shaped collection pan, and the slag discharge jet heads are evenly installed on the slag discharge jet seat. The slag collection pan has an open structure at the end away from the loop-shaped collection pan. The bottom of the slag discharge cylinder has an air inlet pipe and an air outlet pipe fixedly installed, and the air outlet pipe is connected to the slag discharge jet seat.

[0008] As a preferred embodiment of the present invention, the swing cleaning assembly further includes a rack plate and a rotating gear fixedly installed at the bottom of the cutting base plate. The U-shaped base plate has an arc-shaped rotating groove at the top of the middle of the U-shaped lifting groove. A U-shaped support plate is fixedly installed on the U-shaped base plate at the top of the arc-shaped rotating groove. The bottom of the U-shaped support plate is movably connected to the rotating gear through a rotating shaft, and the rotating gear is movably engaged with the rack plate. The rotating gear moves in the arc-shaped rotating groove.

[0009] An arc-shaped swing plate is fixedly installed at the bottom of the rotating gear, and an arc-shaped swing rod is fixedly installed at the bottom of the arc-shaped swing plate. A connecting plate is fixedly installed on the side of the U-shaped base plate away from the U-shaped collection tray. The top of the connecting plate is movably connected to the swing cleaning plate through a rotating shaft. The swing cleaning plate swings in a fan shape in the arc-shaped rotating groove. The swing cleaning plate has an arc-shaped swing groove that matches the size of the arc-shaped swing rod, and the arc-shaped swing rod moves in the arc-shaped swing groove. A cleaning scraper for cleaning the bottom of the cutting base plate is fixedly installed at the top of the swing cleaning plate, and a rubber cleaning brush is fixedly installed at the top of the fixed cleaning plate.

[0010] As a preferred embodiment of the present invention, the cooling and cleaning assembly further includes a cooling piston plate movable inside the cooling blower. A cooling seat is fixedly installed at the end of the cutting machine body away from the slag collection tray, and a plurality of blower nozzles are evenly installed at the bottom of the cooling seat. A cooling blower is fixedly installed at the end of the cutting machine body near the servo motor. A T-shaped piston rod is fixedly installed on the top of the cooling piston plate. The top end of the T-shaped piston rod extends through to the outside of the cooling blower. A telescopic spring is fixedly installed between the T-shaped piston rod and the cooling blower, and the telescopic spring moves around the outer periphery of the T-shaped piston rod.

[0011] A push plate is fixedly installed on the top of the U-shaped drive plate, and the push plate and the T-shaped piston rod move against each other. An exhaust pipe and an intake pipe are fixedly installed at the end of the cooling blower away from the U-shaped collection plate, and the exhaust pipe is connected to the cooling seat.

[0012] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. In this invention, the cutting base plate is driven to perform compound motion within the cutting machine body by the lifting component. When the cutting base plate moves to the slag discharge station, it is seamlessly connected with the slag discharge component to push the high-temperature slag and metal scrap generated during cutting to the external dust collection system, achieving fully enclosed waste transfer. After the cutting base plate enters the cleaning station, the swing cleaning component performs a fan-shaped swing along the three-dimensional trajectory of the cutting base plate to completely remove the adhering residual slag. The fixed cleaning brush performs a secondary fine cleaning to ensure zero residue in the gap of the cutting support strip. The cooling cleaning component sprays a gas flow onto the surface of the metal plate, perfectly solving the chain of pain points in thick plate laser cutting, such as waste retention, uneven platform, deterioration of precision, and limited efficiency. The design is reasonable and ingenious.

[0013] 2. In this invention, the movable ring of the slag discharge assembly, in conjunction with the slag discharge piston rod, drives the slag discharge piston plate at its lower end to move downward within the slag discharge cylinder, generating positive pressure on the sealed space inside the slag discharge cylinder. This forces the slag to be forced out through the air outlet pipe at the bottom and transported to the slag discharge jet seat. After the compressed gas flows through the slag discharge jet seat, it is ejected at high speed through multiple slag discharge jet heads arranged on its surface. The high-speed airflow precisely acts on the slag collection pan below, and the strong airflow impact force directly acts on the molten metal waste and cutting scraps accumulated in the pan, loosening and rolling them up. The airflow direction, passing through a specific angle, not only blows up the waste but also guides it to be forcibly and efficiently transported out of the slag collection pan along a preset path, realizing the automated, centralized cleaning and discharge of waste.

[0014] 3. In this invention, the cleaning scraper of the oscillating cleaning component rotates and oscillates under the drive mechanism. The cleaning scraper precisely adheres to the bottom surface of the cutting support strip and uses its rigid cutting edge or wear-resistant edge to powerfully scrape away the slag and solidified spatter adhering to the bottom of the support strip. The scraped slag is directly swept into the specially designed U-shaped collection tray below under the action of gravity and the oscillation direction of the scraper, realizing the initial centralized collection of waste. When the cutting support strip moves past the fixed cleaning plate, the cleaning brush installed on it makes close contact with the bottom of the support strip. Under the frictional force of the relative movement of the cutting support strip, the cleaning brush performs a deep brushing of the bottom surface of the cutting support strip, thoroughly removing the fine residual slag, dust or slight sintering material that the oscillating scraper may have missed.

[0015] 4. In this invention, the swing cleaning plate in the swing cleaning assembly, together with the fixed cleaning plate, forms a double cleaning guarantee, significantly improving the removal effect of stubborn slag. It is especially suitable for the adhesion and sintering of high-temperature slag at the bottom of the support bar, effectively preventing the slag from accumulating and hardening at the bottom of the support bar, ensuring that the top surface of the support bar always remains flat and clean. This is crucial for ensuring stable and reliable support for the metal plates placed subsequently, and is directly related to the positioning accuracy and processing quality of laser cutting. At the same time, automated online cleaning reduces or even eliminates the need for manual downtime cleaning of the support bar, improving the continuous operating efficiency and automation level of the laser cutting equipment. It removes corrosive or high-temperature slag in a timely manner, reducing erosion and thermal deformation of the cutting support bar material, and extending the service life of the cutting support bar. The design of the U-shaped collection tray enables the directional and centralized collection of waste materials, facilitating subsequent automated suction, conveying or centralized processing, reducing the smoke and heat generated by slag accumulation in the cutting area, and avoiding the safety risks of manual cleaning.

[0016] 5. In this invention, the compressed gas in the cooling blower of the cooling cleaning component is directionally transported to the cooling seat through the exhaust pipe. Multiple blower nozzles are integrated below the cooling seat. After the compressed gas flows through the cooling seat, it is uniformly ejected at high speed from these nozzles. The high-speed airflow is precisely guided to the surface of the metal sheet that has just been laser-cut on the cutting worktable below. The airflow and the high-temperature sheet surface undergo forced convection heat exchange, achieving rapid and uniform cooling. This significantly reduces the surface temperature of the sheet, allowing operators to safely and without delay pick up, handle, and perform post-processing operations on the sheet. It eliminates the risk of high-temperature burns, eliminates the need to wait for the sheet to cool naturally, greatly shortens the waiting time between processes, improves production cycle and overall processing efficiency, and reduces the heat radiation of the high-temperature sheet to the workshop environment, helping to maintain a more comfortable and safer working temperature.

[0017] 6. In this invention, the cooling and cleaning component's cooling effect helps reduce the risk of thermal deformation caused by local or overall temperature gradients for thin plates or precision parts, better maintaining the geometric accuracy of the cut workpiece. For some materials sensitive to cooling rate, controllable forced cooling can help obtain a more ideal material microstructure, quickly remove heat from the plate, reduce the long-term heat conduction of the high-temperature plate to the cutting support strip and worktable body below, reduce the risk of thermal deformation, extend the service life of key tooling, and prevent the high-temperature plate from accidentally contacting or baking sensors, cables or other precision components on the worktable for a long time. The cooling and cleaning component can be seamlessly integrated into the automated loading and unloading system. The plate is cooled immediately after cutting, and can be automatically picked up by the robot after cooling reaches the standard, realizing unmanned and continuous production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cutting machine body of the present invention; Figure 3 This is a schematic diagram of the structure of the spiral-shaped base plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the slag discharge cylinder of the present invention; Figure 5 This is a schematic diagram of the structure of the cutting base plate of the present invention; Figure 6 This is a schematic diagram of the slag collection tray of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the structure of the swing cleaning plate of the present invention; Figure 9 This is a schematic diagram of the cooling base of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of the structure at point B in the middle.

[0019] The components include: 10. Cutting machine body; 11. Cutting frame; 12. Laser cutting head; 13. Fixed guide rail; 14. Servo motor; 15. Screw; 16. U-shaped drive plate; 17. Limiting groove; 20. Cutting base plate; 21. Cutting support bar; 22. U-shaped base plate; 23. Lifting column; 24. U-shaped lifting groove; 25. T-shaped slide; 26. T-shaped slider; 27. Connecting plate; 30. Slag collection tray; 31. Slag discharge cylinder; 32. Slag discharge jet head; 33. Slag discharge piston plate; 34. Movable rod; 35. Slag discharge piston rod; 36. Movable ring; 37. Air inlet pipe; 3 8. Air outlet pipe; 39. Slag discharge jet seat; 40. Swing cleaning plate; 41. Rack plate; 42. Rotary gear; 43. Cleaning scraper; 44. Arc-shaped rotating groove; 45. U-shaped support plate; 46. Arc-shaped swing plate; 47. Arc-shaped swing rod; 48. Arc-shaped swing groove; 50. U-shaped collection tray; 51. Connecting plate; 52. Fixed cleaning plate; 53. Cleaning brush; 60. Cooling seat; 61. Cooling blower; 62. Blower nozzle; 63. Cooling piston plate; 64. T-shaped piston rod; 65. Telescopic spring; 66. Exhaust pipe; 67. Suction pipe; 68. Push plate. Detailed Implementation

[0020] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0021] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the machine includes a cutting body 10, a cutting frame 11 with a laser cutting head 12, and a cutting base plate 20 for supporting metal sheets. The cutting body 10 is equipped with an infeed lifting assembly that drives the cutting base plate 20 to move. The infeed lifting assembly lifts the cutting base plate 20 to the bottom of the laser cutting head 12. The top of the cutting body 10 is connected to the cutting frame 11 via a fixed guide rail 13. The fixed guide rail 13 enables horizontal movement of the cutting frame 11, and the cutting base plate 20 moves to the bottom position of the cutting frame 11. A servo motor 14 that drives the cutting base plate 20 is installed at the bottom of the cutting body 10 at one end away from the slag collection tray 30. The output end of the servo motor 14 is connected to a U-shaped drive plate 16 via a screw 15.

[0022] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The lifting assembly includes a U-shaped base plate 22 and a lifting column 23 fixedly installed at the bottom of the cutting machine body 10. The U-shaped base plate 22 has a U-shaped lifting groove 24, which is horizontal in the middle and inclined at both ends. The lifting column 23 is slidably connected in the U-shaped lifting groove 24. The size of the lifting column 23 matches the size of the U-shaped lifting groove 24. The lifting column 23 moves along the U-shaped lifting groove 24. The top of the U-shaped drive plate 16 has a T-shaped sliding groove 25, in which a T-shaped slider 26 is slidably connected. The T-shaped slider 26 is fixedly installed in the U-shaped drive plate 16. At both ends of the lifting column 23, when the lifting column 23 moves horizontally, it drives the T-shaped slider 26 to move in the T-shaped groove 25. When the lifting column 23 moves to both ends of the U-shaped lifting groove 24, the cutting base plate 20 will not only move horizontally but also move up and down. The two ends of the lifting column 23 are fixedly installed at the bottom of the cutting base plate 20 through the connecting plate 27, and the cutting support strip 21 is fixedly installed at the center of the cutting base plate 20. The U-shaped base plate 22 has a limiting groove 17 that matches the size of the U-shaped drive plate 16. The two ends of the U-shaped drive plate 16 move through the limiting groove 17.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The U-shaped drive plate 16 is driven by the servo motor 14 to move horizontally in the limiting groove 17. When it is necessary to process the metal sheet of the cutting base plate 20, the U-shaped drive plate 16 drives the lifting column 23 to move towards one end of the slag collection tray 30. When the lifting column 23 moves horizontally, it moves along the U-shaped lifting groove 24. When the lifting column 23 moves to the two ends of the U-shaped lifting groove 24, the lifting column 23 will move upward along the U-shaped lifting groove 24 under the action of the T-shaped sliding groove 25 and the T-shaped slider 26 of the U-shaped drive plate 16. The metal sheet on the cutting base plate 20 will be lifted to the bottom of the cutting frame 11, and then the laser cutting head 12 will cut the metal sheet.

[0024] See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The cutting base plate 20 is equipped with a slag discharge assembly at the bottom of the laser cutting head 12. The cutting machine body 10 is equipped with a slag collection tray 30 at the bottom of the cutting base plate 20. The slag discharge cylinder 31 in the slag discharge assembly, together with the slag discharge jet head 32, centrally cleans the slag inside the slag collection tray 30. The slag discharge assembly also includes a slag discharge piston plate 33 that moves inside the slag discharge cylinder 31. The U-shaped base plate 22 is fixedly installed at one end near the slag collection tray 30. The slag discharge cylinder 31 is provided, and a movable rod 34 is fixedly installed on one end of the cutting bottom plate 20 near the molten slag collection plate 30. A slag discharge piston rod 35 is fixedly installed on the top of the slag discharge piston plate 33, and the top end of the slag discharge piston rod 35 extends through to the outside of the top of the slag discharge cylinder 31 and is fixedly installed with a movable ring 36 that matches the size of the movable rod 34. The movable rod 34 moves through the movable ring 36, and the slag discharge piston plate 33 under the slag discharge piston rod 35 is driven by the movable rod 34. See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The slag collection pan 30 has a slag discharge jet seat 39 fixedly installed at one end near the loop-shaped collection pan 50, and the slag discharge jet head 32 is evenly installed on the slag discharge jet seat 39. The slag collection pan 30 has an open structure at the end away from the loop-shaped collection pan 50. The slag discharge jet head 32 works together to collect and clean the waste and slag in the loop-shaped collection pan 50. The bottom of the slag discharge cylinder 31 is fixedly installed with an air inlet pipe 37 and an air outlet pipe 38, and the air outlet pipe 38 is connected to the slag discharge jet seat 39. Both the air outlet pipe 38 and the air inlet pipe 37 are equipped with one-way valves. The air outlet pipe 38 can only discharge the gas inside the slag discharge cylinder 31, while the air inlet pipe 37 can only fill the gas inside the slag discharge cylinder 31.

[0025] See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 During the laser cutting process of the metal sheet, the scrap and slag produced during the cutting process are collected in the slag collection tray 30 by the cutting support bar 21. The slag collection tray 30 collects the scrap and slag. After the metal sheet is laser cut, the servo motor 14 drives the screw 15 to reset the U-shaped drive plate 16. At this time, the movable rod 34 moves downward with the cutting base plate 20. Simultaneously, the movable rod 34 drives the slag discharge piston plate 33 under the slag discharge piston rod 35 to move downward inside the slag discharge cylinder 31 through the movable ring 36. The slag discharge piston plate 33 generates positive pressure inside the slag discharge cylinder 31. The bottom of the slag discharge cylinder 31 squeezes the compressed gas onto the slag discharge jet seat 39 through the air outlet pipe 38. Then, the slag discharge jet head 32 on the slag discharge jet seat 39 carries out the scrap and slag in the slag collection tray 30, realizing the centralized cleaning and discharge of the scrap in the slag collection tray 30.

[0026] See Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The lifting assembly drives the cutting base plate 20 into the swing cleaning assembly inside the cutting machine body 10. The swing cleaning plate 40 in the swing cleaning assembly performs a fan-shaped cleaning motion on the bottom of the cutting base plate 20, cleaning and collecting the slag adhering to the cutting base plate 20. The cutting machine body 10 is equipped with a U-shaped collection tray 50 for collecting the falling slag. The swing cleaning assembly also includes a rack plate 41 and a rotating gear 42 fixedly installed at the bottom of the cutting base plate 20. The U-shaped base plate 22 has an arc-shaped rotating groove 44 at the top of the middle of the U-shaped lifting groove 24. A U-shaped support plate 45 is fixedly installed at the top of the arc-shaped rotating groove 44. The bottom of the U-shaped support plate 45 is movably connected to the rotating gear 42 through a rotating shaft, and the rotating gear 42 is movably meshed with the rack plate 41. The rotating gear 42 moves in the arc-shaped rotating groove 44, and the horizontally moving rack plate 41 drives the rotating gear 42 to rotate continuously.

[0027] See Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8An arc-shaped swing plate 46 is fixedly installed at the bottom of the rotating gear 42, and an arc-shaped swing rod 47 is fixedly installed at the bottom of the arc-shaped swing plate 46. A connecting plate 51 is fixedly installed on the side of the U-shaped base plate 22 away from the U-shaped collection tray 50. The top of the connecting plate 51 is movably connected to the swing cleaning plate 40 through a rotating shaft. The swing cleaning plate 40 swings in a fan shape in the arc-shaped rotating groove 44. The swing cleaning plate 40 has an arc-shaped swing groove 48 that matches the size of the arc-shaped swing rod 47, and the arc-shaped swing rod 47 moves in the arc-shaped swing groove 48. A cleaning scraper 43 for cleaning the bottom of the cutting base plate 20 is fixedly installed on the top of the swing cleaning plate 40. The bottom of the cutting support strip 21 is cleaned by the swing cleaning plate 40 and the cleaning scraper 43. A rubber cleaning brush 53 is fixedly installed on the top of the fixed cleaning plate 52. The entire cutting support strip 21 achieves a high-efficiency cleaning effect under the action of the cleaning brush 53.

[0028] See Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 When the U-shaped drive plate 16 moves the cutting base plate 20 at the horizontal position in the middle of the U-shaped lifting groove 24 via the lifting column 23 and connecting plate 27, the cutting base plate 20 undergoes stable horizontal movement at the top of the U-shaped base plate. The rack plate 41 under the cutting base plate 20 will mesh and drive the rotating gear 42 under the U-shaped support plate 45 to rotate synchronously. When the rotating gear 42 rotates, it drives the arc-shaped swing rod 47 to rotate through the arc-shaped swing plate 46. The arc-shaped swing rod 47 rotates in the arc-shaped swing groove 48 of the swing cleaning plate 40. At this time, the swing cleaning plate 40, supported by the connecting plate 51, moves in an arc-shaped groove. The oscillating cleaning plate 40 moves in a reciprocating motion within the rotating groove 44. The oscillating cleaning plate 40 moves in a fan shape under the cutting base plate 20. The cleaning scraper 43 on the oscillating cleaning plate 40 oscillates and cleans the slag adhering to the bottom of the cutting support bar 21, removing the slag adhering to the bottom of the cutting support bar 21. The scraped slag is oscillated and cleaned to the bottom of the U-shaped collection tray 50 for unified collection. After the cutting base plate 20 is cleaned by the oscillating cleaning plate 40, it continues to move horizontally. The cutting support bar 21 is then thoroughly cleaned again by the cleaning brush 53 on the fixed cleaning plate 52, and all the scraped slag at the bottom of the cutting support bar 21 is cleaned and collected in the U-shaped collection tray 50.

[0029] See Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10The top of the U-shaped material collection tray 50 is also equipped with a fixed cleaning plate 52 for fixing, cleaning, and scraping the cutting base plate 20. A cooling and cleaning component is provided at the end of the cutting machine body 10 furthest from the slag collection tray 30. The lifting component moves the metal sheet on the cutting base plate 20 into the cooling seat 60 within the cooling and cleaning component. The cooling blower 61 within the cooling and cleaning component, in conjunction with the blower nozzles 62 under the cooling seat 60, cools and cleans the laser-cut metal sheet. The cooling and cleaning component also includes a cooling piston plate 63 movable inside the cooling blower 61. The cutting machine body 10 at the end furthest from the slag collection tray 30... A cooling seat 60 is fixedly installed at one end of the slag collection tray 30, and several blower nozzles 62 are evenly installed at the bottom of the cooling seat 60. A cooling blower 61 is fixedly installed at one end of the cutting machine body 10 near the servo motor 14. A T-shaped piston rod 64 is fixedly installed on the top of the cooling piston plate 63. The top end of the T-shaped piston rod 64 extends through to the outside of the cooling blower 61. A telescopic spring 65 is fixedly installed between the T-shaped piston rod 64 and the cooling blower 61. The telescopic spring 65 moves around the outer periphery of the T-shaped piston rod 64 and drives the T-shaped piston rod 64 to perform a reset movement through the telescopic spring 65.

[0030] See Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 A push plate 68 is fixedly installed on the top of the U-shaped drive plate 16, and the push plate 68 moves against the T-shaped piston rod 64. An exhaust pipe 66 and an intake pipe 67 are fixedly installed at the end of the cooling blower 61 away from the U-shaped collection plate 50. The exhaust pipe 66 is connected to the cooling seat 60. Both the exhaust pipe 66 and the intake pipe 67 are equipped with one-way valves, so that the exhaust pipe 66 can only discharge the gas in the cooling blower 61, and the cooling blower 61 can only be filled with gas through the intake pipe 67.

[0031] See Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10When the cutting base plate 20 moves to the end away from the slag collection tray 30, the lifting column 23 under the cutting base plate 20 moves upward again along the U-shaped lifting groove 24, lifting the cut metal sheet on the cutting base plate 20 to the bottom of the cooling seat 60. During the lifting process of the cutting base plate 20, the screw 15 drives the U-shaped drive plate 16 to move horizontally. At this time, the push plate 68 on the U-shaped drive plate 16 moves against the T-shaped piston rod 64. The T-shaped piston rod 64 stores and compresses the telescopic spring 65. At the same time, the T-shaped piston rod 64 drives the cooling piston plate 63 to generate positive pressure inside the cooling blower 61. The compressed gas in the cooling blower 61 is input into the cooling seat 60 through the exhaust pipe 66, and then blows air to cool the metal sheet on the cutting base plate 20 through the blower nozzle 62 under the cooling seat 60, thus cooling the laser-cut metal sheet.

[0032] Working principle: The metal sheet to be processed for bridge or river crossing construction is placed on the cutting support bar 21 on the cutting base plate 20. The U-shaped drive plate 16 is driven by the servo motor 14 to move horizontally in the limiting groove 17. When the metal sheet of the cutting base plate 20 needs to be processed, the U-shaped drive plate 16 drives the lifting column 23 to move towards one end of the slag collection plate 30. When the lifting column 23 moves horizontally, it moves along the U-shaped lifting groove 24. When the lifting column 23 moves to the two ends of the U-shaped lifting groove 24, the lifting column 23 will move upward along the U-shaped lifting groove 24 under the action of the T-shaped sliding groove 25 and T-shaped slider 26 of the U-shaped drive plate 16. The metal sheet on the cutting base plate 20 will be lifted to the bottom of the cutting frame 11, and then the laser cutting head 12 will cut the metal sheet. When the cutting base plate 20 moves horizontally and upward at the bottom of the cutting frame 11, the movable rod 34 on the cutting base plate 20 passes through and enters the movable ring 36. Then, the movable rod 34 drives the movable ring 36 to move upward in the vertical direction. The movable ring 36 drives the slag discharge piston plate 33 in the slag discharge cylinder 31 to move upward synchronously through the slag discharge piston rod 35. At this time, a negative pressure is generated inside the slag discharge cylinder 31, and the slag discharge cylinder 31 is filled with gas through the air inlet pipe 37 at the bottom.

[0033] During the laser cutting process of the metal sheet, the scrap and slag produced during the cutting process are collected in the slag collection tray 30 by the cutting support bar 21. The slag collection tray 30 collects the scrap and slag. After the metal sheet is laser cut, the servo motor 14 drives the screw 15 to reset the U-shaped drive plate 16. At this time, the movable rod 34 moves downward with the cutting base plate 20. Simultaneously, the movable rod 34 drives the slag discharge piston plate 33 under the slag discharge piston rod 35 to move downward inside the slag discharge cylinder 31 through the movable ring 36. The slag discharge piston plate 33 generates positive pressure inside the slag discharge cylinder 31. The bottom of the slag discharge cylinder 31 squeezes the compressed gas through the air outlet pipe 38 to the slag discharge jet seat 39. Then, the slag discharge jet head 32 on the slag discharge jet seat 39 carries out the scrap and slag in the slag collection tray 30, realizing the centralized cleaning and discharge of the scrap in the slag collection tray 30.

[0034] When the U-shaped drive plate 16 moves the cutting base plate 20 at the horizontal position in the middle of the U-shaped lifting groove 24 via the lifting column 23 and connecting plate 27, the cutting base plate 20 undergoes stable horizontal movement at the top of the U-shaped base plate. The rack plate 41 under the cutting base plate 20 will mesh and drive the rotating gear 42 under the U-shaped support plate 45 to rotate synchronously. When the rotating gear 42 rotates, it drives the arc swing rod 47 to rotate through the arc swing plate 46. The arc swing rod 47 rotates in the arc swing groove 48 of the swing cleaning plate 40. At this time, the swing cleaning plate 40, supported by the connecting plate 51, moves in an arc... The oscillating cleaning plate 40 moves in a reciprocating motion in the rotating groove 44. The oscillating cleaning plate 40 moves in a fan shape under the cutting base plate 20. The cleaning scraper 43 on the oscillating cleaning plate 40 oscillates and cleans the slag adhering to the bottom of the cutting support bar 21. The scraper is oscillated and cleaned to the bottom of the U-shaped collection tray 50 for unified collection. After the cutting base plate 20 is cleaned by the oscillating cleaning plate 40, it continues to move horizontally. The cutting support bar 21 is thoroughly cleaned again by the cleaning brush 53 on the fixed cleaning plate 52. All the scraper at the bottom of the cutting support bar 21 is cleaned and collected in the U-shaped collection tray 50. When the cutting base plate 20 moves to the end away from the slag collection tray 30, the lifting column 23 under the cutting base plate 20 rises again along the U-shaped lifting groove 24, lifting the cut metal sheet on the cutting base plate 20 to the bottom of the cooling seat 60. During the lifting process of the cutting base plate 20, the screw 15 drives the U-shaped drive plate 16 to move horizontally. At this time, the push plate 68 on the U-shaped drive plate 16 moves against the T-shaped piston rod 64. The T-shaped piston rod 64 stores and compresses the telescopic spring 65. At the same time, the T-shaped piston rod 64 drives the cooling piston plate 63 to generate positive pressure inside the cooling blower 61. The compressed gas in the cooling blower 61 is input into the cooling seat 60 through the exhaust pipe 66, and then blows air through the blower nozzle 62 under the cooling seat 60 to cool the metal sheet on the cutting base plate 20. This cooling of the laser-cut metal sheet makes it easier for workers to pick up the processed metal sheet, improving processing efficiency and enhancing the safety of the workshop.

[0035] After the cutting is completed, a new metal sheet to be processed is placed on the cutting base plate 20. The cutting base plate 20 repeats the above actions and enters the bottom of the cutting frame 11 again. After the push plate 68 and the T-shaped piston rod 64 are disengaged from the limit, the T-shaped piston rod 64 is reset by the extension spring 65. The T-shaped piston rod 64 drives the cooling piston plate 63 to generate negative pressure inside the cooling blower 61. At this time, gas is filled into the cooling blower 61 through the suction pipe to cool the processed metal sheet for the next time.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A laser cutting device for metal materials used in building construction, comprising a cutting machine body, a cutting frame with a laser cutting head, and a cutting base plate for supporting metal sheets, characterized in that, The cutting machine body is equipped with an infeed lifting assembly that drives the cutting base plate to move. The infeed lifting assembly lifts the cutting base plate to the bottom of the laser cutting head. At the bottom of the laser cutting head, the cutting base plate is equipped with a slag discharge assembly. At the bottom of the cutting base plate, the cutting machine body is equipped with a slag collection tray. The slag discharge cylinder in the slag discharge assembly, together with the slag discharge jet head, cleans the slag inside the slag collection tray. The infeed lifting assembly drives the cutting base plate into the swing cleaning assembly inside the cutting machine body. The swing cleaning plate in the swing cleaning assembly performs a fan-shaped cleaning motion on the bottom of the cutting base plate, cleaning and collecting the slag adhering to the cutting base plate. The cutting machine body is equipped with a U-shaped collection tray for collecting the falling slag. The top of the U-shaped collection tray is also equipped with a fixed cleaning plate for fixing, cleaning and scraping the cutting base plate. The cutting machine body is equipped with a cooling and cleaning component at the end away from the slag collection tray. The inlet and outlet lifting component drives the metal plate on the cutting base plate into the cooling seat set in the cooling and cleaning component. The cooling blower set in the cooling and cleaning component, together with the blower nozzle under the cooling seat, cools and cleans the metal plate after laser cutting.

2. The laser cutting device for metal materials used in building construction according to claim 1, characterized in that, The top of the cutting machine body is connected to a cutting frame via a fixed guide rail, and the cutting base plate is movable at the bottom of the cutting frame. A servo motor that drives the cutting base plate is installed at the bottom of the cutting machine body at one end away from the molten slag collection tray. The output end of the servo motor is connected to a U-shaped drive plate via a screw. The lifting assembly includes a U-shaped base plate and a lifting column fixedly installed at the bottom of the cutting machine body. The U-shaped base plate has a U-shaped lifting groove, which is horizontal in the middle and inclined at both ends. The lifting column is slidably connected in the U-shaped lifting groove, and the size of the lifting column matches the size of the U-shaped lifting groove. The lifting column moves along the U-shaped lifting groove. The top of the U-shaped drive plate has a T-shaped sliding groove, in which a T-shaped slider is slidably connected. The T-shaped slider is fixedly installed at both ends of the lifting column. When the lifting column moves horizontally, it drives the T-shaped slider to move in the T-shaped sliding groove. The two ends of the lifting column are fixedly installed at the bottom of the cutting base plate through connecting plates. A cutting support strip is fixedly installed at the center of the cutting base plate. The U-shaped base plate has a limiting groove that matches the size of the U-shaped drive plate, and the two ends of the U-shaped drive plate move through the limiting groove.

3. The laser cutting device for metal materials used in building construction according to claim 2, characterized in that, The slag discharge assembly also includes a slag discharge piston plate that moves inside the slag discharge cylinder. The slag discharge cylinder is fixedly installed on the end of the U-shaped base plate near the slag collection plate, and a movable rod is fixedly installed on the end of the cutting base plate near the slag collection plate. A slag discharge piston rod is fixedly installed on the top of the slag discharge piston plate, and the top of the slag discharge piston rod extends through to the outside of the top of the slag discharge cylinder and is fixedly installed with a movable ring that matches the size of the movable rod. The movable rod moves through the movable ring, and the slag discharge piston plate under the slag discharge piston rod is driven by the movable rod. The slag collection pan has a slag discharge jet seat fixedly installed at one end near the loop-shaped collection pan, and the slag discharge jet heads are evenly installed on the slag discharge jet seat. The slag collection pan has an open structure at the end away from the loop-shaped collection pan. The bottom of the slag discharge cylinder has an air inlet pipe and an air outlet pipe fixedly installed, and the air outlet pipe is connected to the slag discharge jet seat.

4. The laser cutting device for metal materials used in building construction according to claim 3, characterized in that, The swing cleaning assembly also includes a rack plate and a rotating gear fixedly installed at the bottom of the cutting base plate. The U-shaped base plate has an arc-shaped rotating groove at the top of the middle of the U-shaped lifting groove. A U-shaped support plate is fixedly installed at the top of the arc-shaped rotating groove on the U-shaped base plate. The bottom of the U-shaped support plate is movably connected to the rotating gear through a rotating shaft, and the rotating gear is movably engaged with the rack plate. The rotating gear moves in the arc-shaped rotating groove.

5. The laser cutting device for metal materials used in building construction according to claim 4, characterized in that, An arc-shaped swing plate is fixedly installed at the bottom of the rotating gear, and an arc-shaped swing rod is fixedly installed at the bottom of the arc-shaped swing plate. A connecting plate is fixedly installed on the side of the U-shaped base plate away from the U-shaped collection tray. The top of the connecting plate is movably connected to the swing cleaning plate through a rotating shaft. The swing cleaning plate swings in a fan shape in the arc-shaped rotating groove. The swing cleaning plate has an arc-shaped swing groove that matches the size of the arc-shaped swing rod, and the arc-shaped swing rod moves in the arc-shaped swing groove. A cleaning scraper for cleaning the bottom of the cutting base plate is fixedly installed at the top of the swing cleaning plate, and a rubber cleaning brush is fixedly installed at the top of the fixed cleaning plate.

6. The laser cutting device for metal materials used in building construction according to claim 2, characterized in that, The cooling and cleaning assembly also includes a cooling piston plate that moves inside the cooling blower. A cooling seat is fixedly installed at the end of the cutting machine body away from the slag collection tray, and several blower nozzles are evenly installed at the bottom of the cooling seat. A cooling blower is fixedly installed at the end of the cutting machine body near the servo motor. A T-shaped piston rod is fixedly installed on the top of the cooling piston plate. The top of the T-shaped piston rod extends through to the outside of the cooling blower. A telescopic spring is fixedly installed between the T-shaped piston rod and the cooling blower, and the telescopic spring moves around the outer periphery of the T-shaped piston rod.

7. A laser cutting device for metal materials used in building construction according to claim 6, characterized in that, A push plate is fixedly installed on the top of the U-shaped drive plate, and the push plate and the T-shaped piston rod move against each other. An exhaust pipe and an intake pipe are fixedly installed at the end of the cooling blower away from the U-shaped collection plate, and the exhaust pipe is connected to the cooling seat.

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