Laser cutting equipment for refined steel

By introducing an automated cleaning assembly consisting of a rotating column and a cleaning wheel into laser cutting equipment, the problem of incomplete slag removal from the toothed rack worktable has been solved, achieving thorough and timely slag removal without dead angles, thus improving cutting accuracy and the service life of the worktable.

CN121972834APending Publication Date: 2026-05-05GUANGDONG HUANYU FINE STEEL INTELLIGENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202610455818.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-08
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the existing technology, when laser cutting refined steel, the slag on the toothed worktable is not thoroughly cleaned, and the cleaning time is unpredictable, which affects the cutting accuracy and increases the cleaning difficulty, and may even cause damage to the worktable.

Method used

A laser cutting device including a toothed rack worktable, a cutting unit and a cleaning component was designed. Through the cooperation of the rotating column and the cleaning wheel, the toothed rack component can be automatically and thoroughly cleaned of molten slag. The cleaning sequence is to first clean the slag between the tooth tips and then clean the molten slag on both sides.

Benefits of technology

It enables timely and comprehensive slag removal within the workpiece cutting gap, preventing slag adhesion and improving cleaning efficiency, ensuring cutting accuracy and extending the life of the worktable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of laser cutting, and discloses laser cutting equipment for refined steel, which comprises a bed frame, a tooth-shaped strip worktable, a cutting unit and a cleaning assembly are arranged on the bed frame, the tooth-shaped strip worktable comprises a chain wheel chain part and a plurality of tooth-shaped strip parts, and the tooth-shaped strip parts are arrayed in the traction direction of the chain wheel chain part. The tooth-shaped strip part comprises a base, the extending direction of the base is parallel to the axis direction of the chain wheel, a side shaft extends from the end of the base and is movably connected with a chain of the chain wheel chain part, and a supporting rack is detachably installed on the side, away from the inner surface of the chain wheel chain part, of the base. The cleaning assembly comprises a cleaning part and a jacking part, slag on the tooth-shaped strip part comprises slag located in the area between two adjacent tooth tips of the supporting rack and slag located on the two sides of the supporting rack, and when the cleaning part operates, the slag is removed firstly and then removed.
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Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and more specifically to a laser cutting device for refined steel. Background Technology

[0002] Laser cutting is a process in the production of refined steel. During metal laser cutting, the worktable used to support the workpiece is typically a toothed worktable. Furthermore, molten slag produced during laser cutting adheres to the toothed worktable. Therefore, after prolonged operation, it is necessary to temporarily stop the machine to clean the slag from the toothed worktable. In existing technologies, slag removal from toothed rack worktables is generally achieved through methods such as hammering or grinding. However, this method has several drawbacks: Firstly, it easily leaves blind spots, meaning the cleaning is not thorough and needs improvement. Secondly, since cleaning is performed after prolonged cutting operations, the unpredictable adhesion of slag means the timing of cleaning depends on the operator's experience. This can lead to unnoticed slag adhering to the toothed rack's tips, making it difficult to place new metal sheets evenly and affecting cutting accuracy. Thirdly, if slag is not removed for a long time, its adhesion becomes stronger, increasing the difficulty of subsequent cleaning and potentially damaging the toothed rack worktable.

[0003] Based on the above, the present invention proposes a laser cutting device for refined steel. Summary of the Invention

[0004] To address the problems mentioned in the background above, the present invention provides a laser cutting device for refined steel.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A laser cutting device for refined steel includes a bed frame and a toothed rack worktable, a cutting unit and a cleaning assembly mounted on the bed frame. The toothed rack worktable includes a sprocket chain condition and toothed rack components. The axis of the sprocket of the sprocket chain condition is arranged horizontally, and several toothed rack components are arranged in an array along the traction direction of the sprocket chain condition.

[0007] The toothed rack component includes a base, the extension direction of which is parallel to the axis of the sprocket, a side shaft extending from the end of the base, the side shaft being movably connected to the chain of the sprocket chain condition, and a support rack being detachably installed on the side of the base away from the inner surface of the sprocket chain condition.

[0008] The cleaning component is located below the sprocket chain condition. The cleaning component includes a cleaning part and a lifting part. The slag on the toothed rack part includes the slag located between two adjacent tooth tips of the supporting rack and the slag located on both sides of the supporting rack. When the cleaning part is running, the slag is removed first and then the slag is removed.

[0009] As a further improvement and optimization of the present invention, a slag collection box is provided inside the sprocket chain.

[0010] As a further improvement and optimization of the present invention, a side support is provided at the end of the side shaft, and a roller is provided on one side of the side support, with the roller parallel to the sprocket.

[0011] The bed frame is provided with an annular support groove, the shape of which matches the shape of the sprocket chain. The roller is located in the annular support groove, and when the sprocket chain pulls the toothed rack component to move together, the roller rolls in the annular support groove.

[0012] As a further improvement and optimization of the present invention, two rollers are provided and located on both sides of the side shaft respectively.

[0013] As a further improvement and optimization of the present invention, the lifting component includes a horizontal support and a vertical module for driving the horizontal support to move in the vertical direction. A sliding seat and a horizontal module for driving the sliding seat to move are installed on the horizontal support. The moving direction of the sliding seat is parallel to the axis of the sprocket of the sprocket chain condition.

[0014] The upper surface of the horizontal support is slidably mounted with an upper slide block along the vertical direction, and a spring is provided between the two.

[0015] As a further improvement and optimization of the present invention, the cleaning component includes a rotating shaft mounted on the sliding seat. The axis of the rotating shaft is arranged horizontally and perpendicular to the moving direction of the sliding seat. A cleaning wheel is coaxially arranged on the outside of the rotating shaft. Two cleaning wheels are arranged along the axis of the rotating shaft.

[0016] A rotating column is installed on the upper slide block. The axis of the rotating column is parallel to the moving direction of the lower slide block. A clearance opening is provided on the outer surface of the rotating column. When the upper slide block moves upward with the rotating column to the maximum displacement, the support rack without molten slag can pass through the clearance opening. Several clearance openings are arranged in an array along the axis of the rotating column.

[0017] As a further improvement and optimization of the present invention, a vertically arranged guide rod is provided on the upper surface of the horizontal support, the upper slide and the guide rod are slidably connected, and the spring is sleeved on the outside of the guide rod and located between the horizontal support and the upper slide.

[0018] As a further improvement and optimization of the present invention, the sliding base is provided with a motor for driving the rotating shaft and the rotating column to rotate.

[0019] As a further improvement and optimization of the present invention, the output end of the motor and the input end of the rotating shaft form a power connection;

[0020] The horizontal support is equipped with a first transmission shaft and a second transmission shaft. The centerline of the first transmission shaft is parallel to the direction of movement of the sliding seat, while the centerline of the second transmission shaft is arranged vertically.

[0021] The transmission shaft and the rotating shaft are connected by a first power transmission component. The driven component of the first power transmission component is mounted on the transmission shaft through a first connector. When the driven component of the first power transmission component moves together with the sliding seat, the driven component of the first power transmission component continuously outputs power to the transmission shaft through the first connector.

[0022] The first transmission shaft and the second transmission shaft are connected by a second power transmission component;

[0023] The second transmission shaft and the rotating column are connected by a third power transmission component. The driving component of the third power transmission component is mounted on the second transmission shaft via a second connecting component. When the driving component of the third power transmission component moves together with the upper slide, the second transmission shaft continuously outputs power to the driving component of the third power transmission component.

[0024] As a further improvement and optimization of the present invention, a cleaning box is provided below the cleaning component.

[0025] Compared with the prior art, the beneficial effects of this invention are as follows:

[0026] Technical benefits 1. In this case, when a workpiece is laser-cut, during the waiting period for the next workpiece, the toothed strip component can be automatically cleaned of molten slag in a timely manner. The advantage is that it can avoid the molten slag from adhering to the tooth tip for a long time, which would make the adhesion more stable and increase the cleaning difficulty.

[0027] Technical effect 2: By combining the rotating column and the cleaning wheel, this invention can achieve a comprehensive and thorough cleaning of the molten slag on the support rack, making the cleaning more timely, efficient and convenient.

[0028] Technical Effect 3: In this case, the slag in the area between two adjacent tooth tips of the support rack is cleaned first, followed by the slag on both sides of the support rack. The advantage is that if the cleaning order is reversed, with the slag on both sides cleaned first and then the slag in the area between the tooth tips, some slag may still be partially connected to the side of the support rack when cleaning the slag in the area between the tooth tips. In contrast, in the cleaning order of this case, even if some slag is still partially connected to the side of the support rack when cleaning the slag in the area between the tooth tips, this part of the slag will be cleaned off by the cleaning wheel when cleaning the slag on both sides of the support rack later. In other words, this cleaning order method can achieve more comprehensive and thorough removal of slag. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the toothed rack component;

[0032] Figure 4 A structural diagram of the cleaning component;

[0033] Figure 5 A structural diagram of the cleaning component;

[0034] Figure 6 Side view of the cleaning components and toothed rack worktable Figure 1 ;

[0035] Figure 7 Side view of the cleaning components and toothed rack worktable Figure 2 ;

[0036] Figure 8 Side view of the cleaning components and toothed rack worktable Figure 3 ;

[0037] Figure 9 A schematic diagram showing the support for the rack and pinion and the rotating column.

[0038] The labels in the attached diagram are:

[0039] 100. Bed frame; 101. Toothed rack worktable; 1011. Toothed rack component; 1011a. Base; 1011b. Support rack; 1011c. Side shaft; 1011d. Side support; 1011e. Roller; 1012. Sprocket chain condition; 102. Cutting unit; 103. Annular support groove; 104. Slag receiving box; 200. Cleaning assembly; 201. Cleaning box; 202. Vertical straight line module; 203. Horizontal support; 204. Upper slide; 205. Spring; 206. Horizontal straight line module; 207. Lower slide; 208. Motor; 209. Rotating shaft; 210. Cleaning wheel; 211. Rotating column; 2111. Clearance opening; 212. Transfer shaft one; 213. Transfer shaft two. Detailed Implementation

[0040] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0041] Reference Figures 1-9 A laser cutting device for refined steel includes a bed frame 100 and a toothed worktable 101, a cutting unit 102 and a cleaning assembly 200 disposed on the bed frame 100.

[0042] Reference Figure 2 and Figure 3 The toothed rack worktable 101 includes a sprocket chain condition 1012. The sprocket chain condition 1012 is achievable with existing technology and will not be described in detail. The axis of the sprocket in the sprocket chain condition 1012 is arranged horizontally.

[0043] The toothed rack worktable 101 also includes toothed rack components 1011, and several toothed rack components 1011 are arranged in an array along the traction direction of the sprocket chain condition 1012.

[0044] Furthermore, the toothed rack component 1011 includes a base 1011a, the extension direction of which is parallel to the axis of the sprocket. A side shaft 1011c extends from the end of the base 1011a. The side shaft 1011c is movably connected to the chain of the sprocket chain condition 1012. A side support 1011d is provided at the end of the side shaft 1011c. A roller 1011e is provided on one side of the side support 1011d. The roller 1011e is parallel to the sprocket. There are two rollers 1011e, which are respectively located on both sides of the side shaft 1011c.

[0045] The bed frame 100 is provided with an annular support groove 103. The shape of the annular support groove 103 matches the shape of the sprocket chain condition 1012. The roller 1011e is located in the annular support groove 103, and when the sprocket chain condition 1012 pulls the toothed rack component 1011 to move together, the roller 1011e rolls in the annular support groove 103.

[0046] A support rack 1011b is detachably mounted on one side of the base 1011a away from the inner surface of the sprocket chain condition 1012. The support rack 1011b is shaped as follows: Figure 3 As shown, and as with existing technology, it will not be elaborated further; the detachable method can be achieved using existing technology, which will not be elaborated further, but its advantage is that it facilitates replacement and maintenance when the support rack 1011b is damaged.

[0047] Reference Figure 1 The cutting unit 102 is used to perform laser cutting on the workpiece placed on the toothed rack worktable 101. Existing technology can be used, and it is not the core of this solution, so it will not be described in detail.

[0048] Preferred embodiments, refer to Figure 2 A slag receiving box 104 is provided in the middle of the sprocket chain condition 1012 to receive the molten slag that falls during laser welding.

[0049] Reference Figure 1 and Figure 2 The cleaning component 200 is located below the sprocket chain condition 1012.

[0050] Reference Figures 4-9 The cleaning component 200 includes a cleaning component and a lifting component. The former is used to clean the supporting rack 1011b of the rack worktable 101, and the latter is used to drive the cleaning component to contact the supporting rack 1011b, thereby achieving the cleaning purpose.

[0051] Reference Figure 4 The lifting component includes a horizontal support 203 and a vertical module 202 for driving the horizontal support 203 to move in the vertical direction. Both the vertical module 202 and the horizontal module 206 mentioned later can be realized using existing lead screw linear movement technology, which will not be elaborated further.

[0052] The horizontal support 203 is equipped with a sliding seat 207 and a horizontal linear module 206 for driving the sliding seat 207 to move. The direction of movement of the sliding seat 207 is parallel to the axis of the sprocket in the sprocket chain condition 1012.

[0053] The upper surface of the horizontal support 203 is slidably mounted with an upper slide block 204 in the vertical direction, and a spring 205 is provided between the two. Furthermore, the upper surface of the horizontal support 203 is provided with a vertically arranged guide rod, the upper slide block 204 and the guide rod are slidably connected, and the spring 205 is sleeved on the outside of the guide rod and located between the horizontal support 203 and the upper slide block 204.

[0054] Reference Figure 5 and Figure 9 The cleaning components include a rotating shaft 209 mounted on a lower slide seat 207 and a motor 208 for driving the rotating shaft 209 to rotate. The motor 208 is mounted on the lower slide seat 207.

[0055] The axis of the rotating shaft 209 is arranged horizontally and perpendicular to the moving direction of the sliding seat 207. A cleaning wheel 210 is coaxially arranged on the outside of the rotating shaft 209, such as using grinding wheel technology. Two cleaning wheels 210 are arranged along the axis of the rotating shaft 209, and the area between the two cleaning wheels 210 is named the cleaning zone.

[0056] The upward movement of the horizontal support 203 can move the cleaning area upward along with it, so that the support rack 1011b of the toothed rack component 1011 located above the cleaning area can fall into the cleaning area. Furthermore, the width of the cleaning area is slightly larger than the thickness of the support rack 1011b, that is, just enough to accommodate the support rack 1011b. Since the cleaning wheel 210 that makes up the cleaning area rotates at high speed, the action of the horizontal linear module 206 driving the cleaning area to move can achieve the cleaning of the slag on both sides of the support rack 1011b.

[0057] A rotating column 211 is mounted on the upper slide block 204. The axis of the rotating column 211 is parallel to the direction of movement of the lower slide block 207, such as... Figure 9 As shown, the outer circular surface of the rotating column 211 is provided with a clearance opening 2111. When the upper slide 204 moves upward with the rotating column 211 to the maximum displacement, the shape of the clearance opening 2111 matches the shape of the support rack 1011b, allowing the support rack 1011b to pass through. Since the rotating column 211 rotates at high speed at the same time, it has a cleaning effect on the slag in the area between adjacent tooth tips of the support rack 1011b. Furthermore, several clearance openings 2111 are arranged in an array along the axis of the rotating column 211, which is consistent with the number of tooth tips of the support rack 1011b, and are used to avoid several tooth tips on the support rack 1011b.

[0058] Reference Figure 5 The horizontal support 203 is equipped with a first transmission shaft 212 and a second transmission shaft 213. The axis of the first transmission shaft 212 is parallel to the direction of movement of the lower slide seat 207, and the axis of the second transmission shaft 213 is arranged vertically.

[0059] The transmission shaft 212 and the rotating shaft 209 are connected by a first power transmission member. The driven member of the first power transmission member is mounted on the transmission shaft 212 through a first connector. When the driven member of the first power transmission member moves together with the sliding seat 207, the driven member of the first power transmission member continuously outputs power to the transmission shaft 212 through the first connector. Preferably, the first connector includes an internal spline on the driven member of the first power transmission member and an external spline on the transmission shaft 212.

[0060] The power connection between transmission shaft 1 212 and transmission shaft 213 is achieved through a second power transmission component.

[0061] The transmission shaft 213 and the rotating column 211 are connected by a third power transmission component. The driving component of the third power transmission component is mounted on the transmission shaft 213 via a second connecting component. When the driving component of the third power transmission component moves together with the upper slide 204, the transmission shaft 213 continuously outputs power to the driving component of the third power transmission component. Preferably, the second connecting component includes an external spline 2 provided on the transmission shaft 213 and an internal spline 2 provided on the driving component of the third power transmission component.

[0062] In a preferred embodiment, a cleaning box 201 is provided below the cleaning component for receiving the molten slag that has been cleaned off.

[0063] Working principle of the invention:

[0064] One of the core aspects of this case is the cleaning of the toothed rack worktable 101;

[0065] In this case, the toothed rack component 1011 is divided into two parts: one part with the tooth tips facing upwards to support the workpiece, and the other part with the tooth tips facing downwards to wait for the molten slag to be cleaned.

[0066] In this case, after a workpiece is laser-cut, during the waiting period for the next workpiece, the toothed component 1011 is promptly cleaned of slag. Its technical advantages are: Technical effect 1: It can avoid slag from adhering to the tooth tip for a long time, which would make the adhesion more stable and increase the cleaning difficulty.

[0067] The specific cleaning process is as follows:

[0068] Step 1: The horizontal support 203 moves upward, so that the upper slide 204 and the rotating column 211 reach the maximum upward distance, such as... Figure 7 As shown;

[0069] Step 2: The sprocket chain condition 1012 pulls the toothed rack component 1011 to feed one tooth, and the feed distance is equal to the distance between two adjacent support racks 1011b. At the same time, the motor 208 drives the rotating column 211 to rotate. The two work together to clean the slag in the area between two adjacent tooth tips of the support rack 1011b.

[0070] Step 3: The horizontal support 203 continues to move upward, and the spring 205 is compressed, so that the support rack 1011b is located in the cleaning area. At the same time, the cleaning wheel 210 is driven to rotate by the motor 208, and the sliding seat 207 is moved by the horizontal linear module 206. The three work together to clean the slag on both sides of the support rack 1011b.

[0071] Step 4: The horizontal support 203 continues to move downward, but the position of the rotating column 211 remains unchanged. Then, repeat steps 2 and 3, and so on, to clean the slag from the toothed worktable 101.

[0072] Its technological advantages lie in:

[0073] Technical effect 2: By cooperating with the rotating column 211 and the cleaning wheel 210, this invention can achieve a comprehensive and thorough cleaning of the slag on the support rack 1011b without any dead angles, making the cleaning more timely, efficient and convenient.

[0074] Technical Effect 3: In this case, the slag in the area between two adjacent tooth tips of the support rack 1011b is cleaned first, followed by the slag on both sides of the support rack 1011b. The advantage is that if the cleaning order is reversed, with the slag on both sides cleaned first and then the slag in the area between the tooth tips cleaned, then when cleaning the slag in the area between the tooth tips, there is a possibility that one side of some slag may still be tangled with the side of the support rack 1011b. In contrast, in the cleaning order of this case, even if some slag is still tangled with the side of the support rack 1011b when cleaning the slag in the area between the tooth tips, this part of the slag will be cleaned away by the cleaning wheel 210 when cleaning the slag on both sides of the support rack 1011b. In other words, this cleaning order method can achieve more comprehensive and thorough removal of slag.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A laser cutting device for refined steel, comprising a bed frame (100) and a toothed rack worktable (101), a cutting unit (102), and a cleaning assembly (200) disposed on the bed frame (100), characterized in that, The toothed rack worktable (101) includes a sprocket chain condition (1012) and a toothed rack component (1011). The axis of the sprocket of the sprocket chain condition (1012) is arranged horizontally, and several toothed rack components (1011) are arranged in an array along the traction direction of the sprocket chain condition (1012). The toothed rack component (1011) includes a base (1011a), the extension direction of which is parallel to the axis of the sprocket, and a side shaft (1011c) extending from the end of the base (1011a). The side shaft (1011c) is movably connected to the chain of the sprocket chain condition (1012). A support rack (1011b) is detachably mounted on the side of the base (1011a) away from the inner surface of the sprocket chain condition (1012). The cleaning component (200) is located below the sprocket chain condition (1012). The cleaning component (200) includes a cleaning part and a lifting part. The slag on the toothed rack part (1011) includes slag a located between two adjacent tooth tips of the supporting rack (1011b) and slag b located on both sides of the supporting rack (1011b). When the cleaning part is running, slag a is removed first and then slag b is removed.

2. The laser cutting equipment for refined steel according to claim 1, characterized in that, The sprocket chain condition (1012) is equipped with a slag receiving box (104).

3. The laser cutting equipment for refined steel according to claim 1, characterized in that, A side support (1011d) is provided at the end of the side shaft (1011c), and a roller (1011e) is provided on one side of the side support (1011d), with the roller (1011e) parallel to the sprocket; The bed frame (100) is provided with an annular support groove (103). The shape of the annular support groove (103) matches the shape of the sprocket chain condition (1012). The roller (1011e) is located in the annular support groove (103), and when the sprocket chain condition (1012) pulls the toothed rack component (1011) to move together, the roller (1011e) rolls in the annular support groove (103).

4. The laser cutting equipment for refined steel according to claim 3, characterized in that, There are two rollers (1011e) located on both sides of the side shaft (1011c).

5. The laser cutting equipment for refined steel according to claim 1, characterized in that, The lifting component includes a horizontal support (203) and a vertical module (202) for driving the horizontal support (203) to move in the vertical direction. A sliding seat (207) and a horizontal module (206) for driving the sliding seat (207) to move are mounted on the horizontal support (203). The direction of movement of the sliding seat (207) is parallel to the axis of the sprocket in the sprocket chain condition (1012). The upper surface of the horizontal support (203) is slidably mounted with an upper slide block (204) in the vertical direction, and a spring (205) is provided between the two.

6. The laser cutting equipment for refined steel according to claim 5, characterized in that, The cleaning component includes a rotating shaft (209) mounted on the sliding base (207). The axis of the rotating shaft (209) is arranged horizontally and perpendicular to the moving direction of the sliding base (207). A cleaning wheel (210) is coaxially arranged on the outside of the rotating shaft (209). There are two cleaning wheels (210) arranged along the axis of the rotating shaft (209). A rotating column (211) is installed on the upper slide (204). The axis of the rotating column (211) is parallel to the moving direction of the lower slide (207). The outer surface of the rotating column (211) is provided with a clearance opening (2111). When the upper slide (204) moves up to the maximum displacement along with the rotating column (211), the support rack (1011b) that is not attached to the molten slag can pass through the clearance opening (2111). Several clearance openings (2111) are arranged in an array along the axis of the rotating column (211).

7. The laser cutting equipment for refined steel according to claim 5, characterized in that, The upper surface of the horizontal support (203) is provided with a vertically arranged guide rod, the upper slide (204) is slidably connected to the guide rod, and the spring (205) is sleeved on the outside of the guide rod and located between the horizontal support (203) and the upper slide (204).

8. The laser cutting equipment for refined steel according to claim 6, characterized in that, The slide block (207) is equipped with a motor (208) for driving the rotating shaft (209) and the rotating column (211) to rotate.

9. A laser cutting device for refined steel according to claim 8, characterized in that, The output end of the motor (208) and the input end of the rotating shaft (209) form a power connection; The horizontal support (203) is equipped with a first transmission shaft (212) and a second transmission shaft (213). The axis of the first transmission shaft (212) is parallel to the direction of movement of the lower slide (207), and the axis of the second transmission shaft (213) is arranged vertically. The transmission shaft (212) and the rotating shaft (209) are connected by a first power transmission member. The driven member of the first power transmission member is mounted on the transmission shaft (212) through a first connector. When the driven member of the first power transmission member moves together with the sliding seat (207), the driven member of the first power transmission member continuously outputs power to the transmission shaft (212) through the first connector. The first transmission shaft (212) and the second transmission shaft (213) are connected by a second power transmission component; The transmission shaft 2 (213) and the rotating column (211) are connected by a third power transmission component. The active component of the third power transmission component is mounted on the transmission shaft 2 (213) through a second connector. When the active component of the third power transmission component moves together with the upper slide (204), the transmission shaft 2 (213) continuously outputs power to the active component of the third power transmission component.

10. A laser cutting device for refined steel according to claim 6 or 8, characterized in that, A cleaning box (201) is provided below the cleaning component.