Laser cutting machine capable of automatically removing adhering slag

Abstract

The utility model discloses a laser cutting machine capable of automatically removing adhering slag, and relates to the technical field of laser cutting, the laser cutting machine comprises a machine main body, one side of the top of the machine main body is connected with a guide rail, a linear motor is installed in the guide rail, and the output end of the linear motor is connected with an abutting frame; the other side of the top of the machine body is connected with a top frame, and damping springs are installed at the bottom of the top frame. Through the arrangement of the abutting frame, the pressure wheel, the damping spring, the supporting roller and the grinding abrasive belt, after laser cutting is completed, the linear motor is matched with the guide rail to drive the abutting frame to move towards the top frame for discharging, so that a workpiece is pushed into the top frame, at the moment, the pressure wheel is attached to the top of the workpiece, and downward pressure is applied to the support through the damping spring; therefore, the pressing wheel applies downward pressure to the workpiece, and meanwhile, the grinding abrasive belt is supported through the supporting roller; workpieces can be automatically pushed out for discharging, adhering slag is removed in the discharging process, and the adhering slag is cleaned comprehensively and cannot affect cutting work.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a laser cutting machine that automatically removes slag. Background Technology

[0002] Laser cutting is a cutting process that can be used to cut metallic and non-metallic materials of varying thicknesses. This is based on a guided, shaped, and focused laser beam. Upon striking the workpiece, it heats the material, causing it to melt or evaporate. All the laser power is concentrated at a point typically less than half a millimeter in diameter. If the heat input at that point exceeds the heat lost through heat conduction, the laser beam will completely penetrate the material—the cutting process begins. While heavy tools exert enormous force on sheet metal in other processes, the laser beam accomplishes its work without contact. Therefore, the tool itself does not wear, and the workpiece is neither deformed nor damaged.

[0003] An automatic slag removal laser cutting machine for stainless steel plates, application number 202222296776.5, includes a base with a mounting frame. A first rotating rod and a second rotating rod, arranged vertically, are rotatably mounted within the mounting frame. A drive mechanism for driving the first and second rotating rods is mounted on the mounting frame. A first screw is located at the center of the first rotating rod, and a second screw is located at the center of the second rotating rod. A movable laser head is located below the first screw. A slider is slidably connected to the base, and the second screw passes through and is threadedly connected to the slider. A rectangular groove is provided at the upper end of the slider, and a rectangular block is slidably mounted within the rectangular groove. This invention allows the laser head to move, and after cutting the steel plate, a scraper follows closely behind to remove slag from the bottom, eliminating the need for transferring the steel plate and reducing the workload of workers. Furthermore, the scraper can be easily replaced, making operation simple and convenient.

[0004] This technical solution achieves the cleaning of slag through the linkage displacement of the scraper, but it encounters the following problems: First, the laser head and the scraper are misaligned, and their movement together makes it difficult to clean when slag appears at the laser head's retraction position; second, the scraper and the slag-laden area are moved relative to each other to achieve the cleaning effect. Slag is formed by the re-cooling and solidification of molten metal, adhering to the bottom of the workpiece. If the scraper directly collides with the slag for cleaning, since laser cutting usually does not use clamps to hold and limit the workpiece, the collision between the scraper and the slag can easily cause displacement and vibration of the workpiece, thus affecting the accuracy of laser cutting. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a laser cutting machine that automatically removes slag, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic slag removal laser cutting machine, comprising a machine body, a guide rail connected to one side of the top of the machine body, a linear motor installed inside the guide rail, and a support frame connected to the output end of the linear motor; a top frame connected to the other side of the top of the machine body, a damping spring installed at the bottom of the top frame, a bracket connected to the bottom end of the damping spring, and a pressure roller connected inside the bracket; a rotary motor installed on one side of the back of the machine body, a transmission roller connected to the output end of the rotary motor, a support roller and a transmission roller connected inside the machine body, and a grinding belt connected between the two transmission rollers and the support roller.

[0007] By adopting the above technical solution, after laser cutting is completed, the linear motor, in conjunction with the guide rail, drives the support frame to move towards the top frame for unloading, thereby pushing the workpiece into the top frame. At this time, the pressure roller is in contact with the top of the workpiece, and the damping spring applies downward pressure to the support, thereby applying downward pressure to the workpiece by the pressure roller. At the same time, the grinding belt is supported by the support roller. After the rotary motor starts, the output end drives the transmission roller to rotate clockwise, thereby causing the grinding belt to rotate towards the gantry slide. The workpiece moves to the left while the grinding belt rotates to the right, so that the bottom of the workpiece moves relative to the grinding belt, thereby grinding away the slag on the bottom of the workpiece.

[0008] Furthermore, the support frame is welded together from multiple round steel bars and steel rings.

[0009] By adopting the above technical solution, after the linear motor starts, it works in conjunction with the guide rail to drive the support frame to move towards the top frame for unloading, thereby pushing the workpiece into the top frame.

[0010] Furthermore, multiple supports are provided, and the multiple supports are distributed at equal intervals.

[0011] By adopting the above technical solution, the pressure roller is supported by a bracket, and a connection is formed between the damping spring and the pressure roller. Therefore, when the damping spring applies downward pressure to the bracket, the pressure roller applies downward pressure to the workpiece.

[0012] Furthermore, multiple pressure rollers and damping springs are provided, and the multiple pressure rollers and damping springs are distributed in a rectangular array.

[0013] By adopting the above technical solution, the number of pressure rollers and damping springs is increased, thereby increasing the area where the workpiece is pressed down and preventing the edges and corners of the workpiece from lifting up and affecting the grinding effect.

[0014] Furthermore, the pressure roller is located above the abrasive belt.

[0015] By adopting the above technical solution, the damping spring applies downward pressure to the bracket, thereby causing the pressure roller to apply downward pressure to the workpiece, so that the bottom of the workpiece is in close contact with the top of the grinding belt.

[0016] Furthermore, multiple support rollers are provided, and the multiple support rollers are distributed at equal intervals.

[0017] By adopting the above technical solution, the pressure roller applies downward pressure to the workpiece, while the support roller supports the grinding belt to prevent the grinding belt from breaking or deforming.

[0018] Furthermore, a gantry slide is installed on the top of the machine body, and a laser head is installed at the output end of the gantry slide.

[0019] By adopting the above technical solution, firstly, the operator places the workpiece on top of the machine body, and then the operator opens the gantry slide and the laser head. After the gantry slide is started, it drives the laser head to move forward, backward, left, right and up and down. After the laser head is started, it emits laser light, which, together with the gantry slide, drives the laser head to move and thus cut the workpiece.

[0020] Furthermore, a cover plate extends through one side of the outer surface of the machine body, and bolts extend through the outer surface of the cover plate, which is then detachably connected to the machine body via the bolts.

[0021] By adopting the above technical solution, when the sanding belt is severely worn, the operator can loosen and remove the bolts to stop the limiting of the cover plate. After that, the operator can remove the cover plate and stop the limiting of the sanding belt. At this time, the operator can pull the sanding belt out from one side of the outer surface of the machine body and install a new sanding belt. After replacing the sanding belt, the operator can put the cover plate back and tighten the bolts.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention utilizes a combination of a support frame, pressure, damping springs, support rollers, and a grinding belt. After laser cutting, a linear motor, in conjunction with a guide rail, drives the support frame to move towards the top frame for unloading, thus pushing the workpiece into the top frame. At this point, the pressure rollers are in contact with the top of the workpiece, and the damping springs apply downward pressure to the support frame, thereby applying downward pressure to the workpiece. Simultaneously, the support rollers support the grinding belt. After the rotary motor starts, its output drives the transmission rollers to rotate clockwise, causing the grinding belt to rotate towards the gantry slide. The workpiece moves to the left while the grinding belt rotates to the right, causing the bottom of the workpiece to move relative to the grinding belt, thereby removing the slag from the bottom of the workpiece. This design automatically ejects the workpiece for unloading, removing slag during the unloading process, and the thorough slag removal does not affect the cutting operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a side sectional view of the present invention.

[0026] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the cover plate of this utility model.

[0028] In the diagram: 1. Machine body; 2. Gantry slide; 3. Laser head; 4. Cover plate; 5. Bolt; 6. Guide rail; 7. Linear motor; 8. Support frame; 9. Top frame; 10. Bracket; 11. Pressure roller; 12. Damping spring; 13. Rotary motor; 14. Transmission roller; 15. Support roller; 16. Grinding belt. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of this utility model will be described below based on its overall structure.

[0031] Example 1:

[0032] A laser cutting machine that automatically removes slag, such as Figures 1-4 As shown, the machine includes a main body 1, a guide rail 6 connected to one side of the top of the main body 1, a linear motor 7 installed inside the guide rail 6, and a support frame 8 connected to the output end of the linear motor 7. After the linear motor 7 is started, it works with the guide rail 6 to drive the support frame 8 to move towards the top frame 9 for unloading, thereby pushing the workpiece into the top frame 9. The support frame 8 is welded from multiple round steel bars and steel rings. The hollow structure has high strength and low material consumption.

[0033] A top frame 9 is connected to the other side of the top of the machine body 1. A damping spring 12 is installed at the bottom of the top frame 9. A bracket 10 is connected to the bottom of the damping spring 12. Multiple brackets 10 are provided and are distributed at equal intervals. A pressure roller 11 is connected inside the bracket 10. The pressure roller 11 is located above the sanding belt 16. Multiple pressure rollers 11 and damping springs 12 are provided and are distributed in a rectangular array. The damping spring 12 applies downward pressure to the bracket 10, thereby causing the pressure roller 11 to apply downward pressure to the workpiece, so that the bottom of the workpiece is tightly attached to the top of the sanding belt 16.

[0034] A rotary motor 13 is installed on one side of the back of the machine body 1. The output end of the rotary motor 13 is connected to a transmission roller 14. Inside the machine body 1, there are support rollers 15 and transmission rollers 14. Multiple support rollers 15 are provided and are distributed at equal intervals. A grinding belt 16 is connected between two transmission rollers 14 and support rollers 15. When the workpiece moves to the left, the grinding belt 16 rotates to the right, so that the bottom of the workpiece moves relative to the grinding belt 16, thereby grinding away the slag on the bottom of the workpiece.

[0035] See Figure 1 and Figure 4 In the above embodiment, a gantry slide 2 is installed on the top of the machine body 1, and a laser head 3 is installed at the output end of the gantry slide 2. The operator places the workpiece on the top of the machine body 1, and then the operator turns on the gantry slide 2 and the laser head 3. After the gantry slide 2 is started, it drives the laser head 3 to move forward, backward, left, right and up and down. After the laser head 3 is started, it emits a laser, which, together with the gantry slide 2, drives the laser head 3 to move and thus cut the workpiece.

[0036] Example 2:

[0037] Based on the above embodiment 1, in order to facilitate the replacement of the severely worn abrasive belt 16, the following settings are now made.

[0038] See Figure 1 , Figure 2 and Figure 4 In the above embodiment, a cover plate 4 is inserted through one side of the outer surface of the machine body 1, and a bolt 5 is inserted through the outer surface of the cover plate 4. The cover plate 4 is detachably connected to the machine body 1 by the bolt 5. When the sanding belt 16 is severely worn, the operator loosens the bolt 5 and removes it, thereby ending the restriction on the cover plate 4. After that, the operator removes the cover plate 4. After the operator removes the cover plate 4, the restriction on the sanding belt 16 is ended. At this time, the operator can pull the sanding belt 16 out from one side of the outer surface of the machine body 1 and install a new sanding belt 16. After replacing the sanding belt 16, the operator reinstalls the cover plate 4 and tightens the bolt 5.

[0039] The implementation principle of this utility model is as follows: First, the operator places the workpiece on the top of the machine body 1. Then, the operator opens the gantry slide 2 and the laser head 3. After the gantry slide 2 is started, it drives the laser head 3 to move forward, backward, left, right and up and down. After the laser head 3 is started, it emits laser light, which, together with the gantry slide 2, drives the laser head 3 to move so as to cut the workpiece.

[0040] After laser cutting is completed, the operator turns on the linear motor 7 and the rotary motor 13. Once started, the linear motor 7, in conjunction with the guide rail 6, drives the support frame 8 to move towards the top frame 9 for unloading, thus pushing the workpiece into the top frame 9. This pushes the workpiece to the left, at which point the pressure roller 11 comes into contact with the top of the workpiece and applies downward pressure to the support frame 10 through the damping spring 12. This causes the pressure roller 11 to apply downward pressure to the workpiece, ensuring that the bottom of the workpiece is tightly fitted against the top of the grinding belt 16. Simultaneously, the support roller 15 supports the grinding belt 16. To prevent the grinding belt 16 from breaking or deforming, after the rotary motor 13 starts, the output end drives the transmission roller 14 to rotate clockwise, thereby causing the grinding belt 16 to rotate towards the gantry slide 2, that is, the grinding belt 16 rotates to the right, the workpiece moves to the left and the grinding belt 16 rotates to the right, so that the bottom of the workpiece moves relative to the grinding belt 16, thereby removing the slag on the bottom of the workpiece. As the support frame 8 continues to move to the left, the workpiece is pushed out from the left side of the machine body 1 to complete the unloading work. After that, the support frame 8 moves to the right to reset and prepares for the unloading work after the next laser cutting.

[0041] When the abrasive belt 16 is severely worn, the operator loosens and removes bolt 5 to stop the limiting of cover plate 4. Then, the operator removes cover plate 4 to stop the limiting of abrasive belt 16. At this time, the operator can pull abrasive belt 16 out from one side of the outer surface of the machine body 1 and install a new abrasive belt 16. After replacing abrasive belt 16, the operator puts cover plate 4 back on and tightens bolt 5.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A laser cutting machine for automatically removing slag, comprising a machine body (1), characterized in that: The top side of the machine body (1) is connected to a guide rail (6), and a linear motor (7) is installed inside the guide rail (6), and a support frame (8) is connected to the output end of the linear motor (7); the other side of the top of the machine body (1) is connected to a top frame (9), and a damping spring (12) is installed at the bottom of the top frame (9), a bracket (10) is connected to the bottom end of the damping spring (12), and a pressure roller (11) is connected inside the bracket (10); a rotary motor (13) is installed on the back side of the machine body (1), and a transmission roller (14) is connected to the output end of the rotary motor (13); a support roller (15) and a transmission roller (14) are connected inside the machine body (1), and a grinding belt (16) is connected between the two transmission rollers (14) and the support roller (15).

2. The laser cutting machine for automatically removing slag as described in claim 1, characterized in that: The support frame (8) is welded together from multiple round steel bars and steel rings.

3. The laser cutting machine for automatically removing slag as described in claim 1, characterized in that: The bracket (10) is provided in multiple ways, and the multiple brackets (10) are distributed at equal intervals.

4. The laser cutting machine for automatically removing slag as described in claim 1, characterized in that: Multiple pressure rollers (11) and damping springs (12) are provided, and the multiple pressure rollers (11) and damping springs (12) are distributed in a rectangular array.

5. The laser cutting machine for automatically removing slag as described in claim 4, characterized in that: The pressure roller (11) is located above the abrasive belt (16).

6. The laser cutting machine for automatically removing slag as described in claim 1, characterized in that: The support rollers (15) are provided in multiple ways, and the multiple support rollers (15) are distributed at equal intervals.

7. The laser cutting machine for automatically removing slag as described in claim 1, characterized in that: The machine body (1) is equipped with a gantry slide (2) on top, and a laser head (3) is installed at the output end of the gantry slide (2).

8. The laser cutting machine for automatically removing slag as described in claim 7, characterized in that: A cover plate (4) is inserted through one side of the outer surface of the machine body (1), and a bolt (5) is inserted through the outer surface of the cover plate (4). The cover plate (4) is detachably connected to the machine body (1) by the bolt (5).

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