A laser cutting machine guard

Abstract

The application relates to the technical field of laser cutting machines, in particular to a laser cutting machine protection device, which comprises a laser cutting machine, side protection plates are arranged around the laser cutting machine, a top protection plate is arranged on the upper end surface of the side protection plate, a closed processing area is formed, a hollow box body is arranged below the laser cutting machine, an upper air suction assembly is arranged in the closed processing area, the upper air suction assembly comprises an upper air suction pipe, a waste gas output pipe and a first dust suction fan, one end of the upper air suction pipe extends downward through the top protection plate into the processing area, the other end of the upper air suction pipe extends upward and is communicated with the waste gas output pipe, the waste gas output pipe is communicated with the first dust suction fan, a lower air suction assembly is arranged in the hollow box body, the lower air suction assembly comprises a lower air suction pipe and a second dust suction fan, and the output end of the second dust suction fan is communicated with the lower air suction pipe (71); the structure improves the waste gas treatment efficiency, reduces the residence time of waste gas in the closed processing area, and further reduces the adverse effects of waste gas on workpieces.

Description

Technical Field

[0001] This application relates to the field of laser cutting machine technology, and in particular to a protective device for laser cutting machines. Background Technology

[0002] A laser cutting machine focuses a laser beam emitted from a laser source into a high-power-density beam through an optical path system. This beam irradiates the workpiece surface, causing it to reach its melting or boiling point. Simultaneously, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. Laser cutting uses an invisible beam of light instead of a traditional mechanical blade, offering advantages such as high precision, fast cutting speed, no limitation on cutting patterns, automatic layout to save material, smooth cuts, and low processing costs.

[0003] During laser cutting machine operation, exhaust gases (mainly fumes and dust) are generated. If these fumes are not treated promptly, they can easily affect the workpieces being processed. Furthermore, these exhaust gases are harmful to human health; their dispersion into the air not only pollutes the environment but also increases the health risks for workers operating in that environment. Based on these problems, protective devices specifically designed to address exhaust gas issues have emerged for laser cutting machines. For example, patent CN214602614U discloses a machine tool protective cover for a laser cutting machine. This patent enables the treatment of dust and toxic gases during processing, thereby significantly reducing the impact on workers and the surrounding environment.

[0004] In actual production, the exhaust gas generated by laser cutting mainly flows in two directions: part of it naturally rises under the influence of heat, while the other part is blown downwards by the auxiliary gas used by the cutting head. However, existing technologies for treating exhaust gas, including the aforementioned patents, mostly employ a single top or bottom suction method. This unidirectional suction method is difficult to effectively cover exhaust gas diffusing in both upward and downward directions simultaneously, resulting in low overall treatment efficiency. Consequently, some exhaust gas remains in the processing area for a longer period, still affecting the processed parts. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a protective device for laser cutting machines. The technical solution adopted by this utility model is as follows: A protective device for a laser cutting machine, comprising: A laser cutting machine, wherein side protective plates are fixedly installed around the laser cutting machine, and a top protective plate is fixedly installed on the upper surface of the side protective plates. The side protective plates and the top protective plates enclose the laser cutting machine to form a closed processing area. A hollow box is fixedly installed below the laser cutting machine. The upper suction assembly includes an upper suction pipe, an exhaust gas output pipe, and a first dust extraction fan. One end of the upper suction pipe passes through the top protective plate and extends downward into the processing area, while the other end of the upper suction pipe extends upward and connects to the exhaust gas output pipe. The exhaust gas output pipe is connected to the first dust extraction fan. The lower suction assembly includes a lower suction pipe and a second vacuum fan. The second vacuum fan is fixedly installed on the bottom wall of the hollow box, and the output end of the second vacuum fan is connected to the lower suction pipe. The lower suction pipe 71 is located inside the hollow box.

[0006] Furthermore, a first branch suction pipe is provided within the enclosed processing area. The first branch suction pipe is connected to the upper suction pipe, and the first branch suction pipe is located on both sides of the upper suction pipe.

[0007] Furthermore, a first suction hood is fixedly connected to the lower end of the upper suction pipe, and a second suction hood is fixedly connected to the lower end of the first branch suction pipe.

[0008] Furthermore, a second branch suction pipe is fixedly installed inside the hollow box, the second branch suction pipe is connected to the lower suction pipe, and the second branch suction pipe is arranged on both sides of the lower suction pipe.

[0009] Furthermore, a third suction hood is fixedly installed at the upper end of the lower suction pipe, and a fourth suction hood is fixedly installed at the upper end of the second branch suction pipe.

[0010] Furthermore, a first support base is fixedly installed on the lower end face of the top protective plate, and the first support base is fixedly connected to the first branch air intake pipe; a second support base is fixedly installed on the bottom wall of the hollow box, and the second support base is fixedly connected to the second branch air intake pipe.

[0011] Furthermore, a placement rack is provided on the outer side of the side protective plate and the top protective plate, and the first dust suction fan is fixedly mounted on the upper surface of the placement rack.

[0012] Furthermore, the laser cutting machine is configured as two units, which are connected by an exhaust gas output pipe.

[0013] The beneficial effects of this utility model are as follows: by setting up side protective plates, top protective plates, upper suction components, and lower suction components, the side and top protective plates enclose the laser cutting machine to form a closed processing area, preventing the generated exhaust gas from escaping into the external environment and improving the working environment of the operators; the upper and lower suction components work together to effectively adsorb the exhaust gas that diffuses upward and downward when the laser cutting machine processes products, improving the exhaust gas treatment efficiency, reducing the residence time of exhaust gas in the closed processing area, and thus reducing the adverse effects of exhaust gas on the processed parts. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial structural cross-sectional view of this utility model.

[0016] Figure 3 This is a utility model Figure 2 Enlarged view at point A.

[0017] In the picture: 1. Laser cutting machine; 2. Side protective plate; 3. Top protective plate; 4. Enclosed processing area; 5. Hollow box; 6. Upper suction assembly; 61. Upper suction pipe; 62. Exhaust gas output pipe; 63. First dust extraction fan; 7. Lower suction assembly; 71. Lower suction pipe; 72. Second dust extraction fan; 8. First branch suction pipe; 9. First suction hood; 10. Second suction hood; 11. Second branch suction pipe; 12. Third suction hood; 13. Fourth suction hood; 14. First support base; 15. Second support base; 16. Placement rack; 17. Processed parts. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows: like Figures 1-3As shown, a protective device for a laser cutting machine 1 includes a laser cutting machine 1. Side protective plates 2 are fixedly installed around the laser cutting machine 1. A top protective plate 3 is fixedly installed on the upper surface of the side protective plates 2. The side protective plates 2 and the top protective plate 3 enclose the laser cutting machine 1 to form a closed processing area 4. A hollow box 5 is fixedly installed below the laser cutting machine 1. An upper suction assembly 6 is installed within the closed processing area 4. The upper suction assembly 6 includes an upper suction pipe 61, an exhaust gas output pipe 62, and a first dust extraction fan 63. One end of the upper suction pipe 61 passes through the top protective plate 3 and extends downward into the processing area. The other end of the upper suction pipe 61 extends upward and connects to the exhaust gas output pipe 62. The exhaust gas output pipe 62 is connected to the first dust extraction fan 63. A lower suction assembly 7 is installed within the hollow box 5. 7 includes a lower suction pipe 71 and a second suction fan 72. The second suction fan 72 is fixedly installed on the bottom wall of the hollow box 5. The output end of the second suction fan 72 is connected to the lower suction pipe 71, which is located inside the hollow box 5. By setting up side protective plates 2, top protective plates 3, upper suction components 6, and lower suction components 7, the side protective plates 2 and top protective plates 3 enclose the laser cutting machine 1, forming a closed processing area 4, which prevents the generated exhaust gas from escaping into the external environment and improves the working environment of the operators. The upper suction components 6 and lower suction components 7 work together to effectively adsorb the exhaust gas that diffuses upward and downward when the laser cutting machine 1 processes products, improve the exhaust gas treatment efficiency, reduce the residence time of exhaust gas in the closed processing area 4, and thus reduce the adverse effects of exhaust gas on the processed parts 17.

[0019] It should be noted that a first branch suction pipe 8 is provided in the enclosed processing area 4. The first branch suction pipe 8 is connected to the upper suction pipe 61 and is located on both sides of the upper suction pipe 61. A first suction hood 9 is fixedly connected to the lower end of the upper suction pipe 61, and a second suction hood 10 is fixedly connected to the lower end of the first branch suction pipe 8. This structure effectively improves the efficiency of treating exhaust gas above the workpiece.

[0020] It should be noted that a second branch suction pipe 11 is fixedly installed inside the hollow box 5. The second branch suction pipe 11 is connected to the lower suction pipe 71 and is located on both sides of the lower suction pipe 71. A third suction hood 12 is fixedly installed at the upper end of the lower suction pipe 71, and a fourth suction hood 13 is fixedly installed at the upper end of the second branch suction pipe 11. This structure effectively improves the efficiency of treating exhaust gas below the workpiece.

[0021] It should be noted that a first support base 14 is fixedly installed on the lower end face of the top protective plate 3. The first support base 14 is fixedly connected to the first branch air intake pipe 8. The installation of the first support base 14 enhances the stability of the first branch air intake pipe 8. A second support base 15 is fixedly installed on the bottom wall of the hollow box 5. The second support base 15 is fixedly connected to the second branch air intake pipe 11. The installation of the second support base 15 enhances the stability of the second branch air intake pipe 11.

[0022] It should be noted that a placement rack 16 is provided on the outer side of the side protective plate 2 and the top protective plate 3, and the first dust suction fan 63 is fixedly installed on the upper surface of the placement rack 16.

[0023] It should be noted that the laser cutting machine 1 is configured as two units, and the two laser cutting machines 1 are connected by an exhaust gas output pipe 62; the exhaust gas captured by the upper suction component 6 of the two laser cutting machines 1 can be output through an exhaust gas output pipe 62, which saves resources and reduces costs.

[0024] The working principle and process of this utility model are as follows: During the processing of the workpiece by the laser cutting machine 1, the exhaust gas captured above the workpiece by the first suction hood 9 passes through the upper suction pipe 61 and the exhaust gas output pipe 62 in sequence, and finally enters the first dust extraction fan 63. The exhaust gas captured above the workpiece by the second suction hood 10 passes through the first branch suction pipe 8, the upper suction pipe 61, and the exhaust gas output pipe 62 in sequence, and finally enters the first dust extraction fan 63. The exhaust gas captured below the workpiece by the third suction hood 12 enters the second dust extraction fan 72 through the lower suction pipe 71. The exhaust gas captured below the workpiece by the fourth suction hood 13 enters the lower suction pipe 71 through the second branch suction pipe 11, and finally enters the second dust extraction fan 72 through the lower suction pipe 71.

[0025] The upper suction component 6 and the lower suction component 7 work together to effectively adsorb the exhaust gas that diffuses in both upward and downward directions when the laser cutting machine 1 processes products, thereby improving the exhaust gas treatment efficiency, reducing the residence time of exhaust gas in the enclosed processing area 4, and thus reducing the adverse effects of exhaust gas on the processed parts.

[0026] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A protective device for a laser cutting machine, characterized in that, include: A laser cutting machine (1) is provided with side protective plates (2) fixedly installed around the laser cutting machine (1). A top protective plate (3) is fixedly installed on the upper surface of the side protective plates (2). The side protective plates (2) and the top protective plate (3) surround the laser cutting machine (1) to form a closed processing area (4). A hollow box (5) is fixedly installed below the laser cutting machine (1). The upper suction assembly (6) includes an upper suction pipe (61), an exhaust gas output pipe (62), and a first dust extraction fan (63). One end of the upper suction pipe (61) passes through the top protective plate (3) and extends downward into the processing area. The other end of the upper suction pipe (61) extends upward and communicates with the exhaust gas output pipe (62). The exhaust gas output pipe (62) is connected to the first dust extraction fan (63). The lower suction assembly (7) includes a lower suction pipe (71) and a second vacuum fan (72). The second vacuum fan (72) is fixedly installed on the bottom wall of the hollow box (5). The output end of the second vacuum fan (72) is connected to the lower suction pipe (71). The lower suction pipe (71) is located inside the hollow box (5).

2. The laser cutting machine protective device according to claim 1, characterized in that: The enclosed processing area (4) is provided with a first branch suction pipe (8), which is connected to the upper suction pipe (61). The first branch suction pipe (8) is located on both sides of the upper suction pipe (61).

3. The laser cutting machine protective device according to claim 2, characterized in that: The lower end of the upper suction pipe (61) is fixedly connected to the first suction hood (9), and the lower end of the first branch suction pipe (8) is fixedly connected to the second suction hood (10).

4. The laser cutting machine protective device according to claim 1, characterized in that: A second branch suction pipe (11) is fixedly installed inside the hollow box (5). The second branch suction pipe (11) is connected to the lower suction pipe (71) and is located on both sides of the lower suction pipe (71).

5. A laser cutting machine protective device according to claim 4, characterized in that: The upper end of the lower suction pipe (71) is fixedly provided with a third suction hood (12), and the upper end of the second branch suction pipe (11) is fixedly provided with a fourth suction hood (13).

6. A laser cutting machine protective device according to claim 3 or 4, characterized in that: The top protective plate (3) is fixedly provided with a first support seat (14) on its lower end face, and the first support seat (14) is fixedly connected to the first branch air intake pipe (8); the hollow box (5) is fixedly provided with a second support seat (15) on its bottom wall, and the second support seat (15) is fixedly connected to the second branch air intake pipe (11).

7. A laser cutting machine protective device according to claim 1, characterized in that: The side protective plate (2) and the top protective plate (3) are provided with a placement rack (16), and the first dust suction fan (63) is fixedly installed on the upper surface of the placement rack (16).

8. A laser cutting machine protective device according to claim 1, characterized in that: The laser cutting machine (1) is configured as two units, and the two laser cutting machines (1) are connected by an exhaust gas output pipe (62).

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