Laser cutting device and cutting method for industrial control display screen structural component

Abstract

The invention discloses a laser cutting device and method for industrial control display screen structural parts, and relates to the technical field of laser cutting, the laser cutting device comprises a cutting machine table, a first moving assembly, a second moving assembly and a cutting assembly, and the cutting assembly comprises a cutting head; an air exhaust assembly is installed in the cutting machine table. Wherein the first moving assembly is used for driving the second moving assembly to move in the X-axis direction, and the second moving assembly is used for driving the cutting head to move in the Y-axis direction; and the air exhaust assembly is used for sucking smoke dust generated by laser cutting operation from the waste material collecting hopper to the external space and blowing waste materials in the waste material collecting hopper into the waste material box, so that the operation temperature of the industrial control display screen structural part is reduced. The problems that in the prior art, when a laser cutting device relates to industrial control display screen structural part laser cutting operation, waste is difficult to clean, and smoke interferes with the laser cutting effect of a laser cutting head are solved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a laser cutting device and method for industrial control display screen structural components. Background Technology

[0002] As the core human-machine interface of industrial control systems, industrial control displays rely heavily on their structural components (typically including metal mounting frames, housings, heat sinks, internal support components, and various precision-perforated panels) to ensure stable operation in complex and harsh industrial environments. These components are generally made of metal materials such as stainless steel, aluminum alloy, and carbon steel. They not only need to withstand environmental challenges such as vibration, impact, dust, and temperature and humidity changes, but their dimensional accuracy, structural strength, appearance quality, and assembly consistency also directly affect the overall protection level, electromagnetic compatibility, and long-term reliability of the device.

[0003] In existing technologies, the processing of structural components for industrial control displays mainly relies on traditional stamping and CNC milling. Stamping is suitable for mass production of standardized holes and contours, offering high efficiency but lacking flexibility and incurring high mold costs, making it difficult to adapt to frequent design changes and small-batch customization needs in industrial control products. Laser cutting technology, as a non-contact and highly flexible processing method, is very suitable for the production of structural components for industrial control displays. However, using laser cutting equipment to cut structural components for industrial control displays has the following drawbacks: Firstly, cutting waste generated during processing tends to accumulate in the working area, making it difficult to collect and clean efficiently and automatically, affecting subsequent cutting accuracy and equipment maintenance efficiency; secondly, the dust generated when the laser interacts with the material easily adheres to or interferes with the optical lenses and sensing units of the laser cutting head, thereby reducing the lens transmittance and beam quality, resulting in poor laser cutting performance.

[0004] Therefore, existing laser cutting devices for industrial control display screen structural components suffer from problems such as difficulty in waste removal and dust interference with the laser cutting head's cutting effect. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting device and method for industrial control display screen structural components, which solves the problems of difficult waste cleaning and dust interference with the laser cutting effect of the laser cutting head when laser cutting of industrial control display screen structural components using existing laser cutting devices.

[0006] To achieve this objective, the present invention adopts the following technical solution: According to a first aspect, the present invention provides a laser cutting device for structural components of an industrial control display screen, including a cutting machine table, wherein a first moving component, a second moving component and a cutting component are sequentially connected on the cutting machine table, and the cutting component includes a cutting head; a plurality of support bars are installed on the cutting machine table at intervals and parallel, and a waste collection hopper and a waste box are provided at the bottom of the support bars; and an air extraction component connected to the air passage of the waste collection hopper is installed inside the cutting machine table. The first moving component drives the second moving component to move along the X-axis, and the second moving component drives the cutting head to move along the Y-axis, so that the cutting head performs laser cutting on the industrial control display screen structural component on the support bar; the exhaust component draws the fumes generated by the laser cutting operation from the waste collection hopper to the external space, and blows the waste in the waste collection hopper into the waste box, so as to reduce the operating temperature of the industrial control display screen structural component.

[0007] Optionally, the waste collection hopper is fixedly connected to the cutting machine platform, and the inner wall of the waste collection hopper is provided with a plurality of first collection slopes and a second collection slope, wherein one of the first collection slopes is connected to the second collection slope, and the slope of the first collection slope is greater than the slope of the second collection slope. During laser cutting, the waste material generated passes through the first collection ramp and the second collection ramp in sequence, and then enters the waste box.

[0008] Optionally, the air extraction assembly includes an air extraction box connected to the cutting machine platform. The air extraction box has an air inlet and an air outlet. The air inlet is connected to the air passage of the waste collection hopper, and an air extraction fan is installed at the air outlet. The air extraction box is provided with a partition and a guide plate connected to each other. The guide plate is arranged adjacent to the air outlet. The partition and the guide plate are used to divide the internal cavity of the air extraction box into a first air extraction chamber and a second air extraction chamber arranged in parallel steps.

[0009] Optionally, the height of the suction box along the Z-axis is higher than the height of the waste box along the Z-axis. The bottom of the suction box is provided with a first through hole and a second through hole. The first through hole communicates with the first suction chamber, and the second through hole communicates with the second suction chamber. The volume of the first suction chamber is smaller than the volume of the second suction chamber. Both the first through hole and the second through hole are used to discharge the flue gas in the waste box and to allow the waste dust accumulated in the extraction box to fall into the waste box.

[0010] Optionally, a filter plate is installed at the air inlet, and the filter plate is provided with a plurality of filter holes for filtering part of the flue gas. The height of the filter holes along the Z-axis is higher than the height of the bottom surface of the waste collection hopper along the Z-axis. The inner diameter of the filter hole is smaller than the inner diameter of the first through hole and the inner diameter of the second through hole, respectively. The distance from the first through hole to the air inlet is smaller than the distance from the first through hole to the air outlet, and the distance from the second through hole to the air inlet is smaller than the distance from the second through hole to the air outlet.

[0011] Optionally, the first moving component includes a first moving belt, a synchronizing rod, and a first moving motor. The synchronizing rod and the cutting machine table are both equipped with first rollers. The first moving belt is wound around two first rollers and is arranged perpendicular to the synchronizing rod. The two first moving belts are connected to the two ends of the second moving component. The first moving motor is used to drive the synchronizing rod to rotate around the Y-axis, so that the first moving belts drive the second moving component to move along the X-axis.

[0012] Optionally, the second moving component includes a moving table, a second moving motor, and a second moving belt, with the cutting head slidably connected to the moving table and the second moving belt wound around the moving table; The second moving motor is used to drive the second moving belt to move, so that the second moving belt pulls the cutting head to move along the Y-axis.

[0013] Optionally, two second rollers for winding the second moving belt are rotatably connected to the moving platform, the second moving motor is arranged along the X-axis and a third roller is mounted on its output shaft, and a fourth roller arranged side by side with the third roller is rotatably connected to the moving platform; The fourth roller is coaxially arranged with one of the second rollers, and the outer diameter of the fourth roller is larger than the outer diameter of the second roller and the outer diameter of the third roller. A second connecting belt is wound around the third roller.

[0014] Optionally, the cutting assembly further includes a laser generator, a first reflector, a second reflector, and a third reflector respectively mounted on the second moving assembly, wherein the laser generator is arranged along the Y-axis direction; The laser generated by the laser generator passes sequentially through the first reflector, the second reflector, and the third reflector, and is emitted from the cutting head.

[0015] According to a second aspect, the present invention provides a method for cutting structural components of industrial control displays, applied to a laser cutting apparatus for industrial control display structural components as described in the first aspect, comprising: Step S1: Place the industrial control display screen structural component to be cut on the support bar, start the air extraction component, establish a directional negative pressure airflow towards the air extraction component at the waste collection hopper, and make the airflow path pass through the waste box to form a continuous airflow field covering the cutting waste generation area, the waste conveying path and the waste temporary storage area. Step S2: According to the preset cutting program, control the cutting head to perform laser cutting on the industrial control display screen structural component; during this process, maintain a continuous airflow field, and use the air extraction component to extract smoke and actively push waste materials, thereby reducing the operating temperature of the industrial control display screen structural component. Step S3: After all cutting operations are completed, keep the air extraction component running for a preset post-processing time; Step S4: Stop the air extraction operation of the air extraction component, remove the cut industrial control display screen structural parts, and empty the waste material accumulated in the waste box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a laser cutting device and method for industrial control display screen structural components. Through the synergistic action of a waste collection hopper and an air extraction component, during the cutting operation, the negative pressure airflow generated by the air extraction component can quickly remove harmful fumes from the cutting area, preventing their diffusion. Simultaneously, this airflow actively guides and blows away the falling cutting waste, ensuring it enters the waste collection box in an orderly manner. This achieves simultaneous cleaning of waste and fumes, significantly reducing equipment downtime for maintenance, improving the cleanliness and safety of the working environment, and creating conditions for continuous high-precision cutting. The directional airflow generated by the air extraction component, while cleaning waste and fumes, also produces a certain forced convection cooling effect on the area of ​​the industrial control display screen structural component being cut. This auxiliary cooling helps dissipate the localized heat generated by the accumulation of laser energy, thereby reducing the working temperature of the workpiece to a certain extent. This helps reduce potential work deformation, expansion of the heat-affected zone, or slight changes in material properties caused by heat accumulation. Especially for thin-walled or high-precision metal structural components, this helps further improve the quality of the cut surface and the dimensional stability of the workpiece. Therefore, the present invention solves the problems of difficult waste cleaning and dust interference with the laser cutting effect of the laser cutting head when laser cutting of industrial control display screen structural parts in the prior art. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 A schematic diagram of the overall structure of a laser cutting device for an industrial control display screen structural component provided in an embodiment of the present invention; Figure 2 A cross-sectional structural diagram of a laser cutting device for an industrial control display screen structural component is provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of a first partial structure of the air extraction component in a laser cutting device for an industrial control display screen structural component, provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the second partial structure of the air extraction component in a laser cutting device for an industrial control display screen structure provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first moving component in a laser cutting device for an industrial control display screen structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second moving component in a laser cutting device for an industrial control display screen structure provided in an embodiment of the present invention; Figure 7 for Figure 6 A magnified structural diagram at point A; Figure 8 A flowchart illustrating a laser cutting method for an industrial control display screen structural component, provided as an embodiment of the present invention.

[0020] Illustration: 10. Cutting machine base; 11. Support strip; 20. First moving component; 21. First moving belt; 22. Synchronizing rod; 23. First moving motor; 24. First roller; 25. Driving pulley; 26. Driven pulley; 27. First connecting belt; 30. Second moving component; 31. Moving platform; 32. Second moving motor; 33. Second moving belt; 34. Second roller; 35. Third roller; 36. Fourth roller; 37. Second connecting belt; 40. Cutting assembly; 41. Cutting head; 42. Laser generator; 43. First reflector; 44. Second reflector; 45. Third reflector; 50. Waste collection hopper; 51. First collection ramp; 52. Second collection ramp; 60. Waste box; 70. Air extraction assembly; 71. Air extraction box; 711. Air inlet; 712. Air outlet; 713. First air extraction chamber; 714. Second air extraction chamber; 715. First through hole; 716. Second through hole; 72. Partition plate; 73. Guide plate; 74. Filter plate; 741. Filter hole. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The first aspect of this invention provides a laser cutting device for structural components of an industrial control display screen, such as... Figures 1 to 7 As shown, the device includes a cutting machine table 10, on which a first moving component 20, a second moving component 30, and a cutting component 40 are sequentially connected. The cutting component 40 includes a cutting head 41. Multiple support bars 11 are installed on the cutting machine table 10 and are arranged in parallel at intervals. The bottom of the support bars 11 is provided with a waste collection hopper 50 and a waste box 60. An air extraction component 70 connected to the air passage of the waste collection hopper 50 is installed inside the cutting machine table 10. The first moving component 20 drives the second moving component 30 to move along the X-axis, and the second moving component 30 drives the cutting head 41 to move along the Y-axis, so that the cutting head 41 performs laser cutting on the industrial control display screen structural component on the support bar 11; the exhaust component 70 is used to extract the fumes generated by the laser cutting operation from the waste collection hopper 50 to the external space, and blow the waste in the waste collection hopper 50 into the waste box 60, so as to reduce the operating temperature of the industrial control display screen structural component.

[0025] It should be noted that the laser cutting device for industrial control display screen structural components provided by this invention, through the synergistic effect of the waste collection hopper 50 and the air extraction component 70, enables the negative pressure airflow generated by the air extraction component 70 during the cutting operation. On the one hand, it can quickly remove harmful fumes generated during cutting from the cutting area, preventing their diffusion; on the other hand, the airflow can actively guide and blow away the falling cutting waste, causing it to enter the waste box 60 in an orderly manner. This achieves simultaneous cleaning of waste and fumes, significantly reducing equipment maintenance downtime, improving the cleanliness and safety of the working environment, and creating conditions for continuous high-precision cutting. The directional airflow formed by the air extraction component 70 during operation, while cleaning up waste and fumes, also generates a certain forced convection cooling effect on the area of ​​the industrial control display screen structural component being cut. This auxiliary cooling effect helps dissipate the local heat generated by the accumulation of laser energy, thereby reducing the working temperature of the workpiece to a certain extent. This is beneficial for reducing work deformation, expansion of the heat-affected zone, or slight changes in material properties that may be caused by heat accumulation. Especially for thin-walled or high-precision metal structural components, it helps to further improve the quality of the cut surface and the dimensional stability of the workpiece. Therefore, the present invention solves the problems of difficult waste cleaning and dust interference with the laser cutting effect of the laser cutting head 41 when laser cutting of industrial control display screen structural parts in the prior art.

[0026] like Figure 1 and Figure 2 As shown, the waste collection hopper 50 is fixedly connected to the cutting machine table 10. The inner wall of the waste collection hopper 50 is provided with multiple first collection slopes 51 and a second collection slope 52. One of the first collection slopes 51 and the second collection slope 52 are connected. The slope of the first collection slope 51 is greater than the slope of the second collection slope 52. During laser cutting, waste material is sequentially collected via a first collecting ramp 51 and a second collecting ramp 52 before entering the waste collection box 60. For example, the waste collection hopper 50 and the cutting machine table 10 can be welded together or fastened with screws. The number of first collecting ramps 51 is set to four.

[0027] In practice, by setting up a first collection ramp 51 and a second collection ramp 52 with different slopes, a clear movement path is planned for the falling waste. The steeper first collection ramp 51 allows the waste to quickly leave the area below the cutting zone under the action of gravity and airflow, avoiding initial accumulation; then the waste enters the gentler second collection ramp 52, where its movement speed is buffered, and it slides smoothly into the waste box 60 in a more controllable manner. This "fast first, stable later" flow design effectively prevents blockage, splashing, or rebound of waste during the transfer process, ensuring the continuity and reliability of the waste collection process. The inclined structure of the inner wall not only relies on gravity guidance, but its shape also matches well with the airflow field generated by the suction component 70. The airflow can flow more smoothly along the inclined surface, which on the one hand enhances the driving force to blow the waste towards the second collection ramp 52 and finally into the waste box 60, and on the other hand reduces the eddies or dead corners of the airflow in the waste collection hopper 50, making the negative pressure dust extraction effect more uniform and efficient. The sloping structure reduces the probability of waste adhering to or remaining in the waste collection hopper 50, ensuring unobstructed airflow.

[0028] like Figures 1 to 4 As shown, the air extraction assembly 70 includes an air extraction box 71 connected to the cutting machine table 10. The air extraction box 71 is provided with an air inlet 711 and an air outlet 712. The air inlet 711 is connected to the air passage of the waste collection hopper 50, and an air extraction fan (not shown) is installed at the air outlet 712. The extraction chamber 71 contains a partition 72 and a guide plate 73 connected to each other. The guide plate 73 is adjacent to the air outlet 712. The partition 72 and the guide plate 73 divide the internal cavity of the extraction chamber 71 into a first extraction chamber 713 and a second extraction chamber 714 arranged side by side. In this embodiment, the guide plate 73 is an arc-shaped plate. The smoke extracted by the exhaust fan can be discharged through an external exhaust pipe or treated by an external smoke removal device, which will not be described in detail here. The air outlet 712, the first extraction chamber 713, and the second extraction chamber 714 are interconnected.

[0029] In practice, the flue gas enters the first extraction chamber 713 and the second extraction chamber 714 arranged side by side, meaning that the flue gas generated by cutting is actively distributed or simultaneously introduced into two independent processing chambers. This "parallel" processing mode, compared to a single path or a series path, effectively distributes the airflow load and dust handling volume of a single chamber per unit time. Each chamber can better reduce the velocity and gravity settling of the incoming flue gas, avoiding problems such as a sudden drop in the settling effect of a single chamber, airflow short-circuiting, or dust being directly carried out due to excessive instantaneous flue gas volume. Diverting the flue gas flow to two parallel chambers helps to balance the airflow field inside the extraction chamber 71, preventing insufficient local negative pressure or airflow dead zones caused by uneven air intake.

[0030] After the flue gas completes its initial settling within its respective chamber, it converges at the outlet 712. The arc-shaped guide vane 73 guides the purified airflow from both chambers to merge smoothly and is introduced into the outlet 712 in a streamlined manner, significantly reducing turbulence, eddies, and additional pressure losses commonly caused by mutual interference and impacts when multiple airflows converge. This "divide and conquer, smooth convergence" design maximizes the utilization of the dual-chamber settling space while ensuring lower energy consumption at the final exhaust.

[0031] like Figures 2 to 4 As shown, the height of the vacuum box 71 along the Z-axis is higher than the height of the waste box 60 along the Z-axis. The bottom of the vacuum box 71 is provided with a first through hole 715 and a second through hole 716. The first through hole 715 communicates with the first vacuum chamber 713, and the second through hole 716 communicates with the second vacuum chamber 714. The volume of the first vacuum chamber 713 is smaller than the volume of the second vacuum chamber 714. The first through hole 715 and the second through hole 716 are both used to discharge the flue gas in the waste box 60 and to allow the waste dust accumulated in the extraction box 71 to fall into the waste box 60.

[0032] In practical implementation, the height of the extraction chamber 71 along the Z-axis is set higher than that of the waste box 60, and a first through hole 715 and a second through hole 716 are opened at the bottom of the extraction chamber 71, designing an automatic cleaning channel based on gravitational potential energy. During the extraction operation, some of the relatively heavy waste dust that is sucked into the extraction chamber 71 but not discharged with the airflow will naturally settle at the bottom of the cavity. Due to this height difference, these sediments can automatically fall into the lower waste box 60 through the through holes at the bottom, realizing a closed-loop transfer of dust within the system. This allows the extraction chamber 71 to not only separate gas but also automatically discharge accumulated solid particles, significantly preventing long-term dust accumulation inside the extraction chamber 71 and ensuring the cleanliness and continuous efficient operation of its internal cavity.

[0033] Because the first through hole 715 communicates with the first suction chamber 713 and the second through hole 716 communicates with the second suction chamber 714, and their positions are directly opposite the waste box 60 below, the negative pressure generated by the suction box 71 can not only draw smoke and dust from the waste hopper 50 through the air inlet 711, but also directly and forcefully act on the internal space of the waste box 60 through the two bottom through holes. This "double suction from top and bottom" layout ensures that even fine dust that may be stirred up again during the tumbling and collision of waste materials that have fallen from the workpiece and entered the waste box 60 can be quickly captured and drawn away, avoiding secondary dispersion or retention of smoke in the suction box 71, and realizing full-path smoke and dust control from generation to final collection. Since the volume of the first extraction chamber 713 is smaller than that of the second extraction chamber 714, the smaller first extraction chamber 713 allows some of the flue gas entering from the corresponding air intake path to obtain a higher initial flow velocity, which is beneficial for the rapid capture and transport of dust. Some of the flue gas enters the larger second extraction chamber 714, which has a larger internal space, resulting in a significant decrease in flow velocity, providing more time and more space for the gravity settling of dust (especially fine particles).

[0034] like Figures 2 to 4 As shown, a filter plate 74 is installed at the air inlet 711. The filter plate 74 is provided with multiple filter holes 741 for filtering part of the flue gas. The height of the filter holes 741 along the Z-axis is higher than the height of the bottom surface of the waste collection hopper 50 along the Z-axis. The inner diameter of the filter hole 741 is smaller than the inner diameter of the first through hole 715 and the inner diameter of the second through hole 716, respectively. The distance from the first through hole 715 to the air inlet 711 is smaller than the distance from the first through hole 715 to the air outlet 712, and the distance from the second through hole 716 to the air inlet 711 is smaller than the distance from the second through hole 716 to the air outlet 712. In this embodiment, the filter plate 74 and the air extraction box 71 can be welded and fixed, or they can be fastened with screws, or they can be fixed in other ways, which will not be described in detail here.

[0035] In practical implementation, a filter plate 74 with filter holes 741 is installed at the air inlet 711, forming the first physical barrier of the system. Its inner diameter is smaller than the inner diameter of the first and second through holes 716 at the bottom, creating a stepped filter hole diameter system 741. This allows the filter plate 74 to effectively intercept larger waste particles and splashes sucked in from the waste collection hopper 50, preventing them from directly entering the extraction chamber. This pre-filtration significantly reduces the risk of large particles impacting, abrading, or clogging the subsequent extraction fan, guide plate 73, and inner wall of the chamber, providing crucial protection for the long-term stable operation and extended lifespan of the core extraction component 70. The flue gas filtered through the filter holes 741 of the filter plate 74 has its large particulate impurities removed, resulting in a "cleaner" airflow entering the extraction chamber. This allows the subsequent gravity settling process in the first and second extraction chambers 713 to focus more on processing finer dust particles, improving settling efficiency and purity. Meanwhile, the gas flowing towards the outlet 712 and external treatment equipment has more uniform dust-containing characteristics, which is conducive to the efficient operation of external smoke removal devices or to meeting more stringent direct emission requirements.

[0036] Furthermore, since the height of the filter hole 741 along the Z-axis is set higher than the bottom surface of the waste hopper 50, it ensures that the air inlet 711 is not located on the waste accumulation layer, avoiding the possibility of falling waste directly clogging the filter hole 741 and ensuring the continuous unobstructed flow of the air intake channel. Because the distance from the first through hole 715 to the air inlet 711 is less than the distance from the first through hole 715 to the air outlet 712, and the distance from the second through hole 716 to the air inlet 711 is less than the distance from the second through hole 716 to the air outlet 712, this arrangement means that part of the airflow drawn in from the air inlet 711 will preferentially pass through the bottom through hole area closer to the air intake side. This design helps guide some fresh airflow or airflow carrying particles to interact with the bottom area earlier, enhancing the suction effect on the rising dust of the waste box 60, while also creating an airflow organization inside the cavity that is more conducive to the settling of dust towards the bottom through hole.

[0037] like Figure 1 and Figure 5 As shown, the first moving component 20 includes a first moving belt 21, a synchronizing rod 22, and a first moving motor 23. The synchronizing rod 22 and the cutting table 10 are both equipped with first rollers 24. The first moving belt 21 is wound around the two first rollers 24 and is set perpendicular to the synchronizing rod 22. In this embodiment, two first moving belts 21 are connected to both ends of the second moving component 30. The first moving motor 23 drives the synchronizing rod 22 to rotate around the Y-axis, so that the first moving belts 21 drive the second moving component 30 to move along the X-axis. In this embodiment, a driving wheel 25 is mounted on the output shaft of the first moving motor 23, and a driven wheel 26 is sleeved on the synchronizing rod 22. A first connecting belt 27 is wound around and connected between the driving wheel 25 and the driven wheel 26. The outer diameter of the driven wheel 26 is larger than the outer diameter of the driving wheel 25 and the outer diameter of the first roller 24.

[0038] In practical implementation, a synchronizing rod 22 simultaneously drives two first moving belts 21, which are vertically connected to the two ends of the second moving assembly 30, forming a rigid mechanical synchronization system. When the first moving motor 23 drives the synchronizing rod 22 to rotate, the two first moving belts 21 are forced to extend and retract at the same linear speed. This eliminates the speed difference, cumulative error, or loss of synchronization risk that may occur when using two independent motors, ensuring that the second moving assembly 30 and its cutting head 41 maintain strict synchronization at both ends when moving along the X-axis. This results in extremely high motion parallelism and repeatability, providing a fundamental guarantee for the contour accuracy of laser cutting.

[0039] Since the outer diameter of the driven wheel 26 is larger than that of the driving wheel 25 and the first roller 24, this essentially creates a speed reduction and torque amplification link between the first moving motor 23 and the synchronizing rod 22. The larger diameter of the driven wheel 26 allows the synchronizing rod 22 to obtain rotational power with a lower speed than the output shaft speed of the first moving motor 23 but with a larger torque. This makes the driving force of the second moving assembly 30 more abundant and stable, reducing the vibration caused by load changes or acceleration and deceleration; on the other hand, the lower speed of the synchronizing rod 22 is also beneficial to the stability and life of the belt drive, making the movement of the entire second moving assembly 30 and the cutting assembly 40 along the X-axis smoother and with less impact.

[0040] like Figures 1 to 7 As shown, the second moving component 30 includes a moving table 31, a second moving motor 32, and a second moving belt 33. The cutting head 41 is slidably connected to the moving table 31, and the second moving belt 33 is wound around the moving table 31. The second moving motor 32 drives the second moving belt 33 to move, so that the second moving belt 33 pulls the cutting head 41 to move along the Y-axis. Specifically, two second rollers 34 for winding the second moving belt 33 are rotatably connected on the moving table 31. The second moving motor 32 is arranged along the X-axis and a third roller 35 is mounted on its output shaft. A fourth roller 36 arranged side by side with the third roller 35 is rotatably connected to the moving table 31. In this embodiment, the fourth roller 36 is coaxially arranged with one of the second rollers 34. The outer diameter of the fourth roller 36 is larger than the outer diameters of the second roller 34 and the third roller 35. A second connecting belt 37 is wound around and connected to the third rollers 35. In this embodiment, the moving table 31 is slidably connected to the cutting machine table 10. The moving table 31 is driven to move along the X-axis direction by the pull of the first moving belt 21.

[0041] In practical implementation, arranging the second moving motor 32 along the X-axis and connecting the third roller 35 on its output shaft to the fourth roller 36 on the moving table 31 via the second connecting belt 37 optimizes the spatial layout. This allows the second moving motor 32 to be installed on the side or off-center of the moving table 31, effectively reducing the overall size and inertia of the moving table 31 in the Y-axis direction, thus achieving a compact drive system. Since the outer diameter of the fourth roller 36 is larger than that of the second roller 34 and the third roller 35, an effective speed reduction and torque amplification transmission stage is constructed. This design allows the fourth roller 36 driving the second moving belt 33 to obtain greater output torque and lower speed. The direct benefit is that the power driving the cutting head 41 along the Y-axis is more abundant, and the speed control is more precise, effectively overcoming motion resistance and ensuring smoother operation and less impact during start-up, stopping, and speed changes. This is crucial for ensuring the straightness and smoothness of the cutting contour.

[0042] like Figure 1 , Figure 6 and Figure 7 As shown, the cutting assembly 40 also includes a laser generator 42, a first reflector 43, a second reflector 44 and a third reflector 45 respectively mounted on the second moving assembly 30, with the laser generator 42 arranged along the Y-axis direction. In this embodiment, the laser generated by the laser generator 42 passes sequentially through the first reflecting mirror 43, the second reflecting mirror 44, and the third reflecting mirror 45, and is emitted from the cutting head 41. In this embodiment, the laser generator 42 and the cutting head 41 are well-known structures in the art, and their specific structures will not be described in detail.

[0043] In practical implementation, by arranging the laser generator 42 along the Y-axis and guiding the beam to the cutting head 41 through the sequential reflection of the first reflector 43, the second reflector 44, and the third reflector 45, a highly efficient spatial optical path folding design is achieved. This design allows the relatively large and heavy laser generator 42 to be fixedly mounted in a suitable position on the moving stage 31, rather than directly on the cutting head 41, significantly reducing the load mass and inertia of the cutting head 41. This not only allows the second moving component 30 to be designed to be lighter and respond faster, but also helps to improve the rigidity and stability of the entire motion system, laying a mechanical foundation for high-precision cutting. The layout of the three reflectors provides ample freedom for the optical path design, allowing for flexible adjustment of the installation position of the laser generator 42 and the beam turning path according to the specific structure of the second moving component 30, the center of gravity balance requirements, and the heat dissipation requirements. This flexibility enables the design to better adapt to laser generators 42 of different power and models, as well as meet the specific requirements of different customers for the overall equipment layout, enhancing the product's versatility.

[0044] A second aspect of this invention provides a method for cutting structural components of an industrial control display screen, applied to the laser cutting apparatus for the structural components of the industrial control display screen described in the first aspect, such as... Figure 8 As shown, it includes: Step S1: Place the industrial control display screen structural component to be cut on the support bar 11, start the air extraction component 70, establish a directional negative pressure airflow towards the air extraction component 70 at the waste collection hopper 50, and make the airflow path pass through the waste box 60 to form a continuous airflow field covering the cutting waste generation area, the waste conveying path and the waste temporary storage area; in this embodiment, the cutting waste generation area is above the support bar 11, the waste conveying path is the inclined surface of the waste collection hopper 50, and the waste temporary storage area is the internal space of the waste box 60; Step S2: According to the preset cutting program, control the cutting head 41 to perform laser cutting on the industrial control display screen structural parts; during this process, maintain a continuous airflow field, and use the suction component 70 to achieve the suction of smoke and dust and the active pushing of waste materials, and reduce the operating temperature of the industrial control display screen structural parts. Step S3: After all cutting operations are completed, keep the air extraction component 70 running for a preset post-processing time; in this embodiment, the post-processing time can be adjusted according to the actual working conditions, such as 10 minutes, 20 minutes or 30 minutes, etc. Step S4: Stop the air extraction operation of the air extraction component 70, remove the cut industrial control display screen structural parts, and empty the waste material accumulated in the waste box 60.

[0045] It should be noted that a continuous airflow field is established and maintained before the cutting operation begins, from the waste generation area to the waste conveying path and then to the waste storage area. This "prevention-oriented, full-process control" strategy ensures that fumes and waste are incorporated into the controlled airflow path from the moment they are generated, achieving closed-loop management of the entire process from generation to collection. This fundamentally eliminates the spread of fumes in the processing area and the random scattering of waste, creating a clean and safe working environment and effectively protecting the optical components of the equipment.

[0046] The system utilizes a continuous directional airflow to simultaneously perform three key functions: firstly, it efficiently extracts smoke and dust to the treatment system; secondly, it actively pushes and guides falling waste along a predetermined path (such as the inclined surface of the waste collection hopper 50) into the waste box 60 using airflow; and thirdly, it reduces the operating temperature of the industrial control display screen's structural components through directional airflow. This synergistic "one airflow, three uses" mechanism transforms waste removal from passive gravity-driven falling to pneumatically assisted active conveying, significantly accelerating the speed at which waste leaves the working area, reducing the risk of waste sticking to the walls, accumulating, or interfering with subsequent cutting, ensuring a continuously clean cutting area, and guaranteeing cutting accuracy.

[0047] In step S3, after cutting, the exhaust assembly 70 is kept running for a preset post-processing time. This ensures that residual smoke and floating fine waste in the system are completely removed after the laser is turned off, preventing secondary contamination of the workpiece or equipment caused by contaminants settling back after shutdown. Combined with the pre-start in step S1 and the standardized cleaning in S4, a standard closed-loop operating procedure is formed. This reduces reliance on operator experience and ensures consistency, repeatability, and high completion rates for different batches and different operators performing the process.

[0048] Working Principle: This invention provides a laser cutting device and method for industrial control display screen structural components. Through the synergistic action of the waste collection hopper 50 and the air extraction component 70, during the cutting operation, the negative pressure airflow generated by the air extraction component 70 can quickly remove harmful fumes generated during cutting from the cutting area, preventing their diffusion. Furthermore, this airflow actively guides and blows away the falling cutting waste, ensuring it enters the waste box 60 in an orderly manner. This achieves simultaneous cleaning of waste and fumes, significantly reducing equipment maintenance downtime, improving the cleanliness and safety of the working environment, and creating conditions for continuous high-precision cutting. The directional airflow generated by the air extraction component 70, while cleaning waste and fumes, also produces a certain forced convection cooling effect on the area of ​​the industrial control display screen structural component being cut. This auxiliary cooling helps dissipate the localized heat generated by the accumulation of laser energy, thereby reducing the working temperature of the workpiece to a certain extent. This helps reduce potential work deformation, expansion of the heat-affected zone, or slight changes in material properties caused by heat accumulation. Especially for thin-walled or high-precision metal structural components, this helps further improve the quality of the cut surface and the dimensional stability of the workpiece. Therefore, the present invention solves the problems of difficult waste cleaning and dust interference with the laser cutting effect of the laser cutting head 41 when laser cutting of industrial control display screen structural parts in the prior art.

[0049] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cutting device for structural components of an industrial control display screen, characterized in that, The device includes a cutting machine platform, on which a first moving component, a second moving component, and a cutting component are sequentially connected. The cutting component includes a cutting head. Multiple support bars are installed on the cutting machine platform at intervals and parallel to each other. The bottom of each support bar is provided with a waste collection hopper and a waste box. An air extraction component connected to the air passage of the waste collection hopper is installed inside the cutting machine platform. The first moving component drives the second moving component to move along the X-axis, and the second moving component drives the cutting head to move along the Y-axis, so that the cutting head performs laser cutting on the industrial control display screen structural component on the support bar; the exhaust component draws the fumes generated by the laser cutting operation from the waste collection hopper to the external space, and blows the waste in the waste collection hopper into the waste box, so as to reduce the operating temperature of the industrial control display screen structural component.

2. The laser cutting device for the structural components of the industrial control display screen according to claim 1, characterized in that, The waste collection hopper is fixedly connected to the cutting machine platform. The inner wall of the waste collection hopper is provided with multiple first collection slopes and one second collection slope. One of the first collection slopes is connected to the second collection slope. The slope of the first collection slope is greater than the slope of the second collection slope. During laser cutting, the waste material generated passes through the first collection ramp and the second collection ramp in sequence, and then enters the waste box.

3. The laser cutting device for the structural components of an industrial control display screen according to claim 1 or 2, characterized in that, The air extraction assembly includes an air extraction box connected to the cutting machine platform. The air extraction box has an air inlet and an air outlet. The air inlet is connected to the air passage of the waste collection hopper, and an air extraction fan is installed at the air outlet. The air extraction box is provided with a partition and a guide plate connected to each other. The guide plate is arranged adjacent to the air outlet. The partition and the guide plate are used to divide the internal cavity of the air extraction box into a first air extraction chamber and a second air extraction chamber arranged side by side.

4. The laser cutting device for the structural components of the industrial control display screen according to claim 3, characterized in that, The height of the suction box along the Z-axis is higher than the height of the waste box along the Z-axis. The bottom of the suction box is provided with a first through hole and a second through hole. The first through hole is connected to the first suction chamber, and the second through hole is connected to the second suction chamber. The volume of the first suction chamber is smaller than the volume of the second suction chamber. Both the first through hole and the second through hole are used to discharge the flue gas in the waste box and to allow the waste dust accumulated in the extraction box to fall into the waste box.

5. The laser cutting device for the structural components of the industrial control display screen according to claim 4, characterized in that, A filter plate is installed at the air inlet. The filter plate has multiple filter holes for filtering part of the flue gas. The height of the filter holes along the Z-axis is higher than the height of the bottom surface of the waste collection hopper along the Z-axis. The inner diameter of the filter hole is smaller than the inner diameter of the first through hole and the inner diameter of the second through hole, respectively. The distance from the first through hole to the air inlet is smaller than the distance from the first through hole to the air outlet, and the distance from the second through hole to the air inlet is smaller than the distance from the second through hole to the air outlet.

6. The laser cutting device for the structural components of an industrial control display screen according to claim 1, characterized in that, The first moving component includes a first moving belt, a synchronizing rod, and a first moving motor. The synchronizing rod and the cutting machine table are both equipped with first rollers. The first moving belt is wound around the two first rollers and is arranged perpendicular to the synchronizing rod. The two first moving belts are connected to the two ends of the second moving component. The first moving motor is used to drive the synchronizing rod to rotate around the Y-axis, so that the first moving belts drive the second moving component to move along the X-axis.

7. The laser cutting device for the structural components of an industrial control display screen according to claim 1, characterized in that, The second moving component includes a moving table, a second moving motor, and a second moving belt. The cutting head is slidably connected to the moving table, and the second moving belt is wound around the moving table. The second moving motor is used to drive the second moving belt to move, so that the second moving belt pulls the cutting head to move along the Y-axis direction.

8. The laser cutting device for the structural components of an industrial control display screen according to claim 7, characterized in that, Two second rollers for winding the second moving belt are rotatably connected to the moving platform. The second moving motor is arranged along the X-axis and a third roller is mounted on its output shaft. A fourth roller arranged side by side with the third roller is rotatably connected to the moving platform. The fourth roller is coaxially arranged with one of the second rollers, and the outer diameter of the fourth roller is larger than the outer diameter of the second roller and the outer diameter of the third roller. A second connecting belt is wound around the third roller.

9. The laser cutting device for the structural components of an industrial control display screen according to claim 1, characterized in that, The cutting assembly further includes a laser generator, a first reflector, a second reflector, and a third reflector respectively mounted on the second moving assembly, wherein the laser generator is arranged along the Y-axis direction; The laser generated by the laser generator passes sequentially through the first reflector, the second reflector, and the third reflector, and is emitted from the cutting head.

10. A method for cutting structural components of an industrial control display screen, applied to a laser cutting apparatus for industrial control display screen structural components as described in any one of claims 1 to 9, characterized in that, include: Step S1: Place the industrial control display screen structural component to be cut on the support bar, start the air extraction component, establish a directional negative pressure airflow towards the air extraction component at the waste collection hopper, and make the airflow path pass through to the waste box to form a continuous airflow field covering the cutting waste generation area, the waste conveying path and the waste temporary storage area. Step S2: According to the preset cutting program, control the cutting head to perform laser cutting on the industrial control display screen structural component; during this process, maintain a continuous airflow field, and use the air extraction component to extract smoke and actively push waste materials, thereby reducing the operating temperature of the industrial control display screen structural component. Step S3: After all cutting operations are completed, keep the air extraction component running for a preset post-processing time; Step S4: Stop the air extraction operation of the air extraction component, remove the cut industrial control display screen structural parts, and empty the waste material accumulated in the waste box.

Images