Laser cutting apparatus

Abstract

This invention relates to laser cutting equipment, comprising a machine body, a crossbeam mounted on the machine body, and a plurality of sword grids equidistantly arranged on the machine body. It also includes: a moving assembly mounted on a side frame; a slag removal structure mounted on the moving assembly; the slag removal structure includes a mounting component and a driving component mounted on the mounting component; a slag removal component mounted on the output end of the driving component and driven to rotate by the driving component; the slag removal component includes a spirally extending spiral plate and a slag removal plate fixed to the outer surface of the spiral plate, the slag removal plate having a profile matching the contour of the sword grid grooves; wherein the moving assembly drives the slag removal structure to move in the X-axis direction, and the moving distance corresponds to the number of rotations of the slag removal component driven by the driving component, so that the slag removal plate cleans the molten slag in the groove area during rotation. This invention solves the problems of low slag cleaning efficiency, dead zones, and excessive reliance on manual operation in existing laser cutting machine sword grids.

Description

Technical Field

[0001] This invention relates to the field of laser cutting machine technology, specifically to laser cutting equipment. Background Technology

[0002] A laser cutting machine is a CNC machining equipment that uses a high-energy-density laser beam as a cutting tool to cut materials. During the cutting process, molten slag is formed on the blade. This molten slag accumulates on the blade, especially in the grooves and tips of the blade. This seriously affects the cutting accuracy of the laser cutting machine and can also scratch the bottom of the plate. Furthermore, the accumulation of molten slag in the grooves reduces the chip removal space, causing continuous molten slag accumulation and affecting the stability of the cutting process.

[0003] Currently, there are two ways to clean the slag from the sword grid. One is by manually knocking and scraping, but this is labor-intensive and inefficient. The other is by using a hand-push slag cleaner, which can improve cleaning efficiency compared to the first method, but still requires manual operation. However, it has limited cleaning capabilities for the slag tips and grooves, and cannot achieve effective cleaning. In addition, vibration occurs during the cleaning process, and the operator's hands will feel uncomfortable after holding it for a long time.

[0004] Therefore, how to provide a convenient and efficient way to clean the slag of the sword grid, reduce human intervention, improve the slag removal effect, and especially effectively clean the slag in the tooth tip and tooth groove to prevent a large amount of slag residue is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser cutting device that solves the problems of low efficiency in cleaning slag from the slag grid of existing laser cutting machines, the existence of blind spots, and excessive reliance on manual operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device, comprising a machine body, a crossbeam mounted on the machine body that moves along the Y-axis, and a plurality of blade grids equidistantly arranged on the machine body along the Y-axis, further comprising: The side frame is installed on the front side of the crossbeam and moves synchronously with the crossbeam; the moving assembly is installed on the side frame; the slag removal structure is installed on the moving assembly and is driven by the moving assembly to move back and forth in the X and Z axis directions. The slag removal structure includes mounting components and drive components mounted on the mounting components; The slag removal component is installed at the output end of the drive component and is driven to rotate by the drive component; The slag removal component includes a spiral plate extending in a spiral shape, and a slag removal plate fixed to the outer surface of the spiral plate, the slag removal plate having a profile that matches the profile of the sword grid tooth groove; Among them, the moving assembly drives the slag removal structure to move in the X-axis direction, and there is a corresponding relationship between the moving distance and the number of rotations of the slag removal component driven by the driving component, so that the slag removal plate cleans the molten slag in the tooth groove area during the rotation process; The laser cutting equipment also includes a control unit, which is electrically connected to the moving assembly, crossbeam, and drive components. The control unit is configured to control the moving assembly, crossbeam, and drive components to work together according to the processing area of ​​the sheet metal, so that the slag removal plate only cleans the scabbard area corresponding to the processing area.

[0007] Furthermore, the slag removal component further includes crushing plates installed at the front and rear ends of the spiral plate, with crushing materials fixedly installed on the surface of the crushing plates.

[0008] Furthermore, the left region a and the right region c of the spiral plate have the same width, while the width of the middle region b is greater than that of regions a and c, so that the width of the spiral plate gradually increases from region a to region b and from region c to region b.

[0009] As a preferred technical solution, the surface of the slag removal plate is divided into three friction surfaces: two side friction surfaces and a top friction surface. The side friction surfaces and the top friction surface do not contact the tooth groove wall.

[0010] Furthermore, the distance between the surfaces of the spiral plate from region a to region b and from region c to region b and the top of the sword grid gradually decreases, so that the surface of the spiral plate in region b will form a sliding contact with the tip of the sword grid.

[0011] As a preferred technical solution, the slag removal component further includes connecting rods that are equidistantly distributed on the inner surface of the spiral plate and a connecting shaft connected to the connecting rods, the connecting shaft being connected to the output end of the drive component.

[0012] Furthermore, the driving component includes a stepper motor and a bearing housing. The stepper motor is mounted on one side of the mounting component, and the bearing housing is mounted on the other side of the mounting component. The left end of the connecting shaft is connected to the output end of the stepper motor, and the other end is connected to the inner ring of the bearing housing.

[0013] As a preferred technical solution, the mounting component includes a mounting frame connected to the front end of the mobile assembly, and a stepper motor is mounted on the left side of the mounting frame.

[0014] Furthermore, a first reinforcing plate is symmetrically mounted on the lower end face of the mounting frame, and a second reinforcing plate is symmetrically mounted on the upper end face of the mounting frame, with one end of the plate being bolted to the front end face of the movable assembly.

[0015] As a preferred technical solution, sensors are symmetrically installed on the front end of the side frame.

[0016] Compared with the prior art, the present invention provides a laser cutting device with the following advantages: 1. This invention, by setting up a moving assembly and a driving component, enables the slag removal component to rotate while moving in the X-axis direction, and there is a preset correspondence between the moving distance and the number of rotations. This allows the slag removal plate to be fed along the tooth groove in a spiral trajectory. Compared with the existing technology that simply relies on the rotating cutter head for scraping or manual knocking and scraping, the spiral feeding method of this invention can enable the slag removal plate to fully penetrate into the tooth groove, effectively cleaning hard-to-reach areas such as the sides and roots of the tooth groove, and significantly improving the cleaning effect of tooth groove slag.

[0017] 2. The present invention sets a variable diameter structure on the spiral plate with the width gradually increasing from both ends to the middle, so that the outer surface of the middle area of ​​the spiral plate forms a sliding contact with the tip of the sword grid. When the slag removal part rotates and feeds, the middle area can scrape and clean the molten slag attached to the tooth tip, which makes up for the defect of the existing cleaning device in poor tooth tip cleaning effect and ensures the flatness of the rack support surface.

[0018] 3. The spiral plate of the present invention adopts a gradual structure in which the width gradually increases from both ends to the middle. During the rotation and feeding process of the slag removal component, the spiral plate generates a gradual radial extrusion friction force on the molten slag in the tooth groove from small to large. Compared with the single scraping or impact method in the prior art, this gradual extrusion can more effectively peel off the firmly adhered molten slag from the tooth groove wall and discharge it, reducing molten slag residue.

[0019] 4. This invention integrates the cleaning mechanism into the laser cutting equipment. Through the coordinated control of the moving assembly and the drive components, automatic feeding and rotation cleaning are achieved without manual pushing or hand operation. Compared with the manual knocking cleaning or hand-pushed slag cleaning machine in the prior art, this invention significantly reduces human intervention, reduces the labor intensity of operators, and improves cleaning efficiency.

[0020] 5. The slag removal plate of the present invention maintains a gap with the tooth groove wall and does not directly contact the tooth groove wall, thus avoiding rigid scraping damage to the tooth groove surface by the cleaning tool. At the same time, the contact between the middle area of ​​the spiral plate and the tooth tip is a sliding contact, which effectively removes molten slag while minimizing wear on the tooth rack surface, which is beneficial to maintaining the support accuracy and service life of the tooth rack.

[0021] 6. The present invention installs the slag removal structure on the side frame on the front side of the crossbeam, which moves synchronously with the crossbeam. It makes full use of the original motion mechanism of the equipment, without the need to add an independent drive system. The overall structure is compact, highly integrated, does not occupy extra space, and is easy to modify and upgrade on existing equipment.

[0022] 7. The present invention uses a control unit to selectively control the cleaning mechanism to clean the corresponding sword grid area according to the processing area of ​​the sheet metal, avoiding the waste of time and energy caused by cleaning the entire worktable every time. Especially for the processing of small-sized sheet metal, the selective cleaning method of the present invention can significantly improve the slag removal efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the present invention; Figure 2 For the present invention Figure 1 Front view diagram; Figure 3 This is a schematic diagram showing the installation position of the mobile assembly and slag removal structure of the present invention; Figure 4 This is a top view schematic diagram of the slag removal structure of the present invention; Figure 5 This is a schematic diagram of the slag removal structure and the sword grid of the present invention.

[0024] In the image: 1. Fuselage; 2. Crossbeam; 3. Side frame; 4. Sword rail; 5. Mobility assembly; 6. Sensors; 7. Slag removal structure; 71. Mounting frame; 72. Stepper motor; 73. First reinforcing plate; 74. Bearing housing; 75. Slag removal component; 751. Connecting shaft; 752. Connecting rod; 753. Spiral plate; 754. Slag removal plate; 7541. Side friction surface; 7542. Top friction surface; 755. Crushed plate; 756. Crushed material; 8. Second reinforcing plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example Please see Figure 1-5 The present invention provides the following technical solution: a laser cutting device, including a body 1, a crossbeam 2 that moves along the Y-axis and is mounted on the body 1, and a plurality of sword grids 4 that are equidistantly arranged on the body 1 along the Y-axis (the foregoing content is consistent with the structure of existing laser cutting machines, and the detailed connection forms and interrelation forms between them can be implemented with reference to the prior art, so they will not be repeated in the technical description of this application), and further including: Side frame 3 is installed on the front side of crossbeam 2 and moves synchronously with crossbeam 2; moving assembly 5 is installed on side frame 3; slag removal structure 7 is installed on moving assembly 5 and is driven by moving assembly 5 to move back and forth in the X and Z axis directions; The slag removal structure 7 includes a mounting component and a drive component mounted on the mounting component; The slag removal component 75 is installed at the output end of the drive component and is driven to rotate by the drive component; The slag removal component 75 includes a spiral plate 753 extending in a spiral shape, and a slag removal plate 754 fixed on the outer surface of the spiral plate 753. The slag removal plate 754 has a profile that matches the tooth groove profile of the sword grid 4. Among them, the moving assembly 5 drives the slag removal structure 7 to move in the X-axis direction, and the moving distance is related to the number of rotations of the slag removal component 75 driven by the driving component, so that the slag removal plate 754 cleans the molten slag in the tooth groove area during the rotation process; The laser cutting equipment also includes a control unit, which is electrically connected to the crossbeam 2, the moving assembly 5, and the drive component. The control unit is configured to control the moving assembly 5, the crossbeam 2, and the drive component to work together according to the processing area of ​​the sheet metal, so that the slag removal plate 754 only cleans the sword grid 4 area corresponding to the processing area. (It should be noted that the control unit can be a programmable logic controller (PLC), a microcontroller, an embedded controller, or other controllers with logic operation and control functions. In this solution, the control unit preferably uses a programmable logic controller (PLC). Furthermore, the control logic executed by the control unit is based on PLC programming technology or microcontroller control technology known in the art. Those skilled in the art can understand the motion coordination relationship disclosed in this specification (such as the correspondence between the moving distance and the number of rotations, and the logic of selective area cleaning). Therefore, this application does not elaborate on the specific programming code of the control unit.

[0027] As described above, the crossbeam 2, the moving assembly 5, and the drive unit work together to clean the tooth grooves and tips in the slag 4. The control unit controls the crossbeam 2, the moving assembly 5, and the drive unit to move the slag removal structure 7 to the slag 4 in the processing area for slag removal in a specific area. This selective cleaning significantly improves slag removal efficiency and reduces unnecessary area cleaning. Because the slag 4 is installed at equal intervals, the distance between them is specific, and the distance between two adjacent sets of teeth on the slag 4 is also specific. The control unit moves the crossbeam 2 to the specific area so that the slag removal plate 754 in the slag removal structure 7 corresponds exactly to the tooth groove. The moving assembly 5 moves downwards to its maximum extension, allowing the slag removal plate 754 to move as... Figure 5As shown, it then rotates via a driving component. Here, the spiral plate 753 has a pitch, and this pitch has a corresponding relationship with the part between the two sets of tooth grooves, "similar to a threaded drive" (see [reference]). Figure 5 As can be seen, this lateral movement along the X-axis via rotation and the moving assembly 5 allows the slag removal plate 754 to penetrate deep into the tooth groove, and the middle area of ​​the spiral plate 753 to contact the tooth tip. Therefore, through the rotation of the slag removal component 75 and the coordinated movement of the moving assembly 5, the slag at the tooth groove and tooth tip of the sword grid 4 can be effectively cleaned, while also achieving rapid cleaning. After cleaning, the moving assembly 5 moves the slag removal structure 7 upward to disengage it from the tooth groove. It should also be noted that, see... Figure 5 As shown, the pitch of the spiral plate 753 is larger than the spacing between the two sets of teeth on the sword grating 4 by one pitch distance (e.g., Figure 5 As shown in d), when the control unit drives the moving assembly 5 to move to the right so that its slag removal structure 7 completes cleaning, the moving assembly 5 drives the slag removal structure 7 to move upward, then to the right by a distance, and then downward to the position shown in d). Figure 5 At the position shown, the slag removal structure 7 is moved to the left by the moving assembly 5, so that the sword grid 4 can be cleaned in a comprehensive manner. It should also be noted that cleaning is generally carried out after long-term cutting by laser cutting equipment. It mainly requires human observation. It is not possible to wait until two adjacent sword grids 4 are connected by molten slag or the tooth groove is completely blocked before cleaning. If this is the case, the molten slag can only be cut off first by an auxiliary cutting device before cleaning.

[0028] To improve the cleaning efficiency of the sword grid 4 and shorten the cleaning time, based on the above, refer to... Figure 1 As can be seen, the arrangement area of ​​the sword grid 4 is divided into 7 cleaning units b1-b7 along the X-axis and 11 cleaning units a1-a11 along the Y-axis. The control unit determines the cleaning units covered by the processing area of ​​the plate according to the processing area of ​​the plate, and controls the slag removal structure 7 to clean only these cleaning units, while not cleaning the uncovered cleaning units.

[0029] During the rotation of the slag removal component 75 driven by the driving component, in order to facilitate the rotation of the slag removal plate 754 along the tooth groove and to facilitate the cleaning of molten slag in the groove and tooth tip area, please refer to the following for details. Figure 4 and Figure 5As can be seen, the slag removal component 75 also includes a crushing plate 755 installed at the front and rear ends of the spiral plate 753. The surface of the crushing plate 755 is fixedly equipped with a crushing body 756, which enables the crushing body 756 to first impact the molten slag in the tooth groove, causing most of the molten slag to fall off after impact. Then, the molten slag at the tooth groove and tooth tip is effectively cleaned by the friction surfaces of the slag removal plate 754 and the spiral plate 753. It should be noted that the molten slag is a mixture of metal oxides and non-oxidized metals, and its main characteristics are hardness and brittleness. Therefore, the impact of the crushing body 756 can knock down most of the molten slag, leaving behind the molten slag with strong adsorption in the tooth tip and tooth groove. This molten slag is then gradually removed by the spiral plate 753 and the slag removal plate 754.

[0030] In order to effectively remove the slag from the tooth grooves while preventing potential damage to the tooth grooves during cleaning, please refer to [link / reference needed]. Figure 5 As can be seen, the widths of the left region a and the right region c of the spiral plate 753 are the same, while the width of the middle region b is greater than that of regions a and c. This causes the width of the spiral plate 753 to gradually increase from region a to region b and from region c to region b. In this way, when the driving component drives the spiral plate 753 to rotate, whether it moves to the left or right by the moving assembly 5, due to the small width at the end, when the end passes through the tooth groove, it can only be broken off by the impact of the crusher 756 on the protruding slag. The slag adhering to the tooth groove wall is removed by a gradual change in width. Because the slag removal plate 754 is installed on the spiral plate 753 and corresponds to the specifications of the spiral plate 753, the slag removal plate 754 can gradually approach the tooth groove wall but will not contact the groove surface. In this way, the slag in the tooth groove can be effectively cleaned without damaging the groove surface.

[0031] Because the tooth grooves between the teeth on the 4th spar are divided into three surfaces—two groove walls and the tooth tip—to achieve a proper fit with these three surfaces, please refer to [the relevant documentation / reference needed]. Figure 5 As can be seen, the surface of the slag removal plate 754 is divided into three friction surfaces: two side friction surfaces 7541 and a top friction surface 7542. The side friction surfaces 7541 and the top friction surface 7542 do not contact the tooth groove wall, thus avoiding rigid scraping damage to the tooth groove surface by the cleaning tool. At the same time, the contact between the middle area of ​​the spiral plate and the tooth tip is a sliding contact, which effectively removes slag while minimizing wear on the rack surface, which helps maintain the rack's support accuracy and service life. The two side friction surfaces 7541 and the top friction surface 7542 can be matched with the two surfaces of the tooth groove and the bottom end of the tooth, thereby effectively removing slag.

[0032] To effectively clean the slag at the tip of the fourth tooth of the sword guard, please refer to the following: Figure 5 As can be seen, the distance between the surface of the spiral plate 753a region to region b and region c to region b and the top of the sword grid 4 gradually decreases, so that the surface of the spiral plate 753a region b will form a sliding contact with the tip of the sword grid 4, through Figure 5 It can be seen that only the spiral plate 753 in region b contacts the tooth tip. Therefore, the spiral plate 753 in region a or c plays a certain pretreatment role, cleaning up most of the protruding slag. Then, through the friction of the spiral plate 753 in region b, which just contacts the tooth tip, the slag on the tooth tip is completely removed, ensuring the flatness of the rack support surface.

[0033] See Figure 3 and Figure 4 As shown, the slag removal component 75 also includes connecting rods 752 that are equidistantly distributed on the inner surface of the spiral plate 753 and a connecting shaft 751 connected to the connecting rods 752. The connecting shaft 751 is connected to the output end of the drive component.

[0034] Based on the above, please refer to the details of the drive components. Figure 3 and Figure 4 As shown, the driving component includes a stepper motor 72 and a bearing housing 74. The stepper motor 72 is mounted on one side of the mounting component, and the bearing housing 74 is mounted on the other side of the mounting component. The left end of the connecting shaft 751 is connected to the output end of the stepper motor 72, and the other end is connected to the inner ring of the bearing housing 74.

[0035] See Figure 2 and Figure 3 As shown, the mounting component includes a mounting frame 71 connected to the front end of the moving assembly 5. The stepper motor 72 is mounted on the left side of the mounting frame 71. The moving assembly 5 is consistent with the X-axis moving beam and Z-axis moving structure in the existing laser cutting machine. The movement is achieved by the structure of the motor, slide rail and rack. The detailed connection form between them and the interrelation form between them can be implemented with reference to the prior art. Therefore, it will not be described in detail in the technical description of this application.

[0036] To enhance the connection strength of the mounting frame 71, please refer to the following: Figure 3 and Figure 4 As shown, a first reinforcing plate 73 is symmetrically installed on the lower end face of the mounting frame 71, and a second reinforcing plate 8 is symmetrically installed on the upper end face of the mounting frame 71, with one end connected to the front end face of the movable assembly 5 by bolts.

[0037] For details on limiting the movement assembly 5, please refer to [link / reference needed]. Figure 2 and Figure 3 As shown, a sensor 6 is symmetrically mounted on the front end of the side frame 3. Assuming that when it is detected by the sensor 6 on the left, its movement assembly 5 will no longer move to the left.

[0038] Based on the above, the working process of this equipment is as follows: I. Preparatory Work After the laser cutting equipment completes the plate cutting operation, a large amount of molten slag will remain on the grooves, tips, and sidewalls of the blade grid 4. At this time, the control unit starts the cleaning program to prepare for cleaning the molten slag from the blade grid 4.

[0039] The control unit first acquires the processing area information of the sheet metal. This information can be read directly from the laser cutting machine's processing program or manually entered by the operator through a human-machine interface. The processing area information includes the coverage area of ​​the sheet metal in the X-axis and Y-axis directions.

[0040] II. Selective Regional Positioning Please see Figure 1 The control unit divides the arrangement area of ​​the sword grid 4 into 7 horizontal cleaning units b1-b7 along the X-axis and 11 vertical cleaning units a1-a11 along the Y-axis, forming 7×11 cleaning sub-regions. The control unit pre-stores the coordinate range of each cleaning sub-region.

[0041] Based on the acquired information about the sheet metal processing area, the control unit determines the cleaning sub-area covered by that processing area. Subsequently, the control unit controls the crossbeam 2 to move along the Y-axis, causing the slag removal structure 7 to move to the location of the target slag guard 4; simultaneously, it controls the moving assembly 5 to drive the slag removal structure 7 to move along the X-axis, aligning it with the cleaning sub-area to be cleaned. For cleaning sub-areas not covered by the processing area, the control unit does not perform cleaning operations, thus achieving selective cleaning and avoiding unnecessary energy consumption and mechanical wear.

[0042] III. Alignment and Lowering of the Slag Removal Structure Please see Figure 5 When the slag removal structure 7 moves to the target cleaning sub-area, the control unit controls the moving assembly 5 to drive the slag removal structure 7 downward along the Z-axis, causing the slag removal structure 7 to descend to the working position (this working position will be a distance equal to the length of the entire slag removal structure 7 from the actual working position to prevent the slag removal structure 7 from directly contacting the molten slag during descent). At this time, the profile of the slag removal plate 754 is accurately aligned with the tooth groove of the sword grid 4, and the left side region a of the spiral plate 753 enters the starting end of the tooth groove.

[0043] Since the blade grids 4 are arranged equidistantly along the Y-axis, the spacing between adjacent blade grids 4 is a constant, and the tooth pitch between adjacent grooves on each blade grid 4 is also a constant. Based on the above structural characteristics, the control unit can precisely control the movement distance of the crossbeam 2 and the moving assembly 5, ensuring the precise alignment of the slag removal plate 754 with the grooves.

[0044] IV. Cleanup Operation Please see Figure 5Once the slag removal structure 7 has descended into position, the control unit simultaneously activates the moving assembly 5 and the stepper motor 72 to begin the cleaning operation.

[0045] (a) Impact Fragmentation Stage Stepper motor 72 drives slag removal component 75 to rotate, and crushing plate 755 installed at the front end of spiral plate 753 rotates along with it. The crushed pieces 756 on the surface of crushing plate 755 first come into contact with the molten slag in the tooth groove. Due to the hard and brittle nature of the molten slag, the impact of the crushed pieces 756 causes most of the outwardly protruding molten slag to break and fall off the tooth groove wall (generally, the molten slag in the tooth groove does not accumulate too much, and in actual operation, it will not directly collide with the molten slag, but in order to prevent the molten slag from being distributed laterally, it needs to be impacted by the crushed pieces 756. Secondly, the molten slag on the sword grid 4 is not molten slag that has not been cleaned for a long time, so the thickness of the molten slag is relatively thin, which is conducive to impact). This stage creates conditions for subsequent fine cleaning.

[0046] (II) Fine cleaning stage of tooth groove After being crushed by the impact of the crusher 756, the slag removal plate 754 continues to rotate with the spiral plate 753. The slag removal plate 754 has a profile that matches the tooth groove contour, including two side friction surfaces 7541 and one top friction surface 7542. The side friction surfaces 7541 and the top friction surface 7542 maintain a gap with the tooth groove wall and do not directly contact the tooth groove wall to avoid rigid scraping damage to the tooth groove.

[0047] While the slag removal component 75 rotates, the moving assembly 5 drives the slag removal structure 7 to move at a constant speed along the X-axis. There is a preset correspondence between the moving distance of the moving assembly 5 and the number of rotations of the stepper motor 72, causing the slag removal plate 754 to feed along the tooth groove in a spiral trajectory. During rotation, the side friction surface 7541 and top friction surface 7542 of the slag removal plate 754 perform rotary scraping on the sides and roots of the tooth groove, peeling the broken slag from the tooth groove wall.

[0048] (III) Tooth Tip Cleaning Stage Please see Figure 5 The width of the spiral plate 753 gradually increases from the left region a towards the middle region b, and also gradually increases from the right region c towards the middle region b, forming a gradient structure that is narrow at both ends and wide in the middle. Based on this structure, the distance between the surface of the spiral plate 753 and the top of the sword grating 4 gradually decreases from the left region a towards the middle region b, and from the right region c towards the middle region b.

[0049] When the slag removal component 75 rotates and feeds, the surfaces of the spiral plates 753 in the left region a and the right region c maintain a gap with the top of the sword grid 4, serving as a guide and pre-treatment function; while the surface of the spiral plates 753 in the middle region b forms a sliding contact with the tip of the sword grid 4, scraping and cleaning the molten slag attached to the tooth tip. Since the middle region b has the largest width and is in perfect contact with the tooth tip, it can effectively remove the residual molten slag on the tooth tip, ensuring the flatness of the rack support surface.

[0050] (iv) Gradual extrusion slag removal As the width of the spiral plate 753 gradually increases from both ends towards the middle, during the rotational feeding process of the slag removal component 75, the spiral plate 753 generates a progressive radial extrusion force on the molten slag in the tooth groove, which gradually increases. This progressive extrusion can effectively peel off the firmly adhered molten slag from the tooth groove wall and discharge it, avoiding molten slag residue.

[0051] V. Repeated Cleaning Please see Figure 5 In this embodiment, the pitch of the spiral plate 753 is set to be greater than the tooth pitch between adjacent tooth slots on the sword grating 4 (e.g., Figure 5 As shown by d, for example, a tooth pitch distance. Based on this, when the slag removal structure 7 completes cleaning in one direction (for example, moving from left to right to the end point), the control unit controls the moving assembly 5 to drive the slag removal structure 7 to move upward along the Z-axis direction, so that it disengages from the tooth groove.

[0052] Subsequently, the control unit controls the moving assembly 5 to drive the slag removal structure 7 to move one tooth pitch distance along the X-axis, and then controls the moving assembly 5 to drive the slag removal structure 7 to move downward along the Z-axis until... Figure 5 The working position is shown. Then, the slag removal component 75 is moved in the opposite direction (from right to left) to clean. Through the above reciprocating cleaning method, the slag removal structure 7 can achieve a complete cleaning of the sword grid 4, ensuring the cleaning effect.

[0053] VI. Cleaning Completed and Reset Once all the required cleaning sub-areas have been cleaned, the control unit controls the moving assembly 5 to drive the slag removal structure 7 upwards along the Z-axis, disengaging it from the sword grid 4 and resetting it to the standby position. Simultaneously, the control unit controls the crossbeam 2 and the moving assembly 5 to move the slag removal structure 7 back to its initial position, awaiting the next cleaning command.

[0054] During the cleaning process, sensors 6, symmetrically installed on the front end of the side frame 3, monitor the position of the slag removal structure 7 in real time. When the slag removal structure 7 moves to its limit position and is detected by the sensor 6, the control unit immediately stops the movement in the corresponding direction to avoid collisions or overtravel and ensure equipment safety.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting device, comprising a machine body (1), a crossbeam (2) disposed on the machine body (1), and a plurality of scimitars (4) equidistantly arranged and mounted on the machine body (1), characterized in that, Also includes: Side frame (3) is installed on the front side of crossbeam (2) and moves synchronously with crossbeam (2); moving assembly (5) is installed on side frame (3); slag removal structure (7) is installed on moving assembly (5) and moves back and forth in the X and Z axis directions driven by moving assembly (5); The slag removal structure (7) includes a mounting component and a drive component mounted on the mounting component; The slag removal component (75) is installed at the output end of the drive component and is driven to rotate by the drive component; The slag removal component (75) includes a spiral plate (753) extending in a spiral shape, and a slag removal plate (754) fixed on the outer surface of the spiral plate (753), the slag removal plate (754) having a profile that matches the tooth groove profile of the sword grid (4); The moving assembly (5) drives the slag removal structure (7) to move in the X-axis direction, and the moving distance corresponds to the number of rotations of the slag removal component (75) driven by the driving component, so that the slag removal plate (754) cleans the molten slag in the tooth groove area during the rotation process.

2. The laser cutting equipment according to claim 1, characterized in that: The slag removal component (75) also includes a crushing plate (755) installed at the front and rear ends of the spiral plate (753), and a crushing body (756) is fixedly installed on the surface of the crushing plate (755).

3. The laser cutting equipment according to claim 2, characterized in that: The left region a and the right region c of the spiral plate (753) have the same width, while the width of the middle region b is greater than that of regions a and c, so that the width of the spiral plate (753) gradually increases from region a to region b and from region c to region b.

4. The laser cutting equipment according to claim 1, characterized in that: The surface of the slag removal plate (754) is divided into three friction surfaces: two side friction surfaces (7541) and a top friction surface (7542). The side friction surfaces (7541) and the top friction surface (7542) do not contact the tooth groove wall.

5. The laser cutting equipment according to claim 3, characterized in that: The distance between the surface of the spiral plate (753) from region a to region b and from region c to region b and the top of the sword grid (4) gradually decreases, so that the surface of the spiral plate (753) in region b will form a sliding contact with the tip of the sword grid (4).

6. The laser cutting equipment according to claim 2, characterized in that: The slag removal component (75) also includes connecting rods (752) that are equidistantly distributed on the inner surface of the spiral plate (753) and connecting shafts (751) that are connected to the connecting rods (752). The connecting shafts (751) are connected to the output end of the drive component.

7. The laser cutting equipment according to claim 6, characterized in that: The drive unit includes a stepper motor (72) and a bearing housing (74). The stepper motor (72) is mounted on one side of the mounting unit, and the bearing housing (74) is mounted on the other side of the mounting unit. The left end of the connecting shaft (751) is connected to the output end of the stepper motor (72), and the other end is connected to the inner ring of the bearing housing (74).

8. The laser cutting equipment according to claim 7, characterized in that: The mounting component includes a mounting frame (71) connected to the front end of the mobile assembly (5), and a stepper motor (72) is mounted on the left side of the mounting frame (71).

9. The laser cutting equipment according to claim 8, characterized in that: The lower end face of the mounting frame (71) is symmetrically equipped with a first reinforcing plate (73), and a second reinforcing plate (8) is symmetrically installed on the upper end face of the mounting frame (71), with one end connected to the front end face of the moving assembly (5) by bolts.

10. The laser cutting equipment according to claim 1, characterized in that: Sensors (6) are symmetrically mounted on the front end of the side frame (3).

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