Air suction pipe device for plate laser cutting machine

Abstract

The utility model relates to the technical field of laser cutting, and discloses an air suction pipe device for a plate laser cutting machine, which comprises a U-shaped pipe, the two ends of the U-shaped pipe are respectively provided with two groups of filtering components, and one group of filtering components comprises a filtering box. The air flow impacts on the first air guide plate, the generated force drives the filter element to rotate slowly and stably, the annular rotating plate connected with the filter element rotates along with the filter element, and the annular rotating plate smoothly rolls in the rotating groove under the assistance of the rolling wheel; the friction force in the rotating process is greatly reduced, so that the whole rotating process is more stable and smoother, each part of the filter element can be uniformly contacted with dust-containing airflow due to the rotating mode, and the filtering comprehensiveness and durability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a suction pipe device for a sheet metal laser cutting machine. Background Technology

[0002] As a key piece of equipment in modern industrial manufacturing, the laser cutting machine operates on a sophisticated and complex principle. It first precisely transmits the high-energy laser emitted from the laser source through a delicate optical path system, focusing it into a high-power-density laser beam. This laser beam accurately irradiates the workpiece surface, and the powerful energy instantly causes the temperature in the localized area of ​​the workpiece to rise rapidly, quickly reaching the melting point or even the boiling point. Simultaneously, high-pressure gas, arranged coaxially with the beam, quickly takes effect, using a powerful airflow to efficiently blow away the molten or vaporized metal. Furthermore, during the cutting process, through precise mechanical structure control, the beam and workpiece continuously and precisely move relative to each other. This cycle repeats, ultimately causing the material to form a regular kerf along a predetermined path, thus perfectly achieving the cutting objective and continuously outputting high-quality cut parts for various manufacturing industries.

[0003] For example, application number CN220347452U describes a suction pipe device for a sheet metal laser cutting machine, comprising a head pipe, a middle pipe, and a tail pipe. The head pipe and the tail pipe are connected through the middle pipe, and all three are detachably connected. The tail pipe is connected to a suction device. An air filter is installed on the middle pipe. The head pipe includes a cover pipe and an air collection cover. The middle pipe includes a first connecting pipe, a second connecting pipe, and a filter cylinder. One end of the first connecting pipe is connected to one end of the filter cylinder. The air filter is inserted into the interior of the filter cylinder from the other end and sealed with an end cap. The air filter can filter the intake air, reducing impurities entering the tail pipe and subsequent pipes, and improving the service life of the tail pipe and subsequent pipes. This solves the problem that in the prior art, after long-term use, the suction pipe of a sheet metal laser cutting machine will have debris adhering to the pipe wall.

[0004] However, in this type of sheet metal laser cutting machine's air intake device, the air filter element is fixed and always filters only one part of the air passing through, while other parts are not fully utilized. Over time, this part is very prone to clogging due to excessive impurities, greatly reducing filtration efficiency and shortening the lifespan of the filter element. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a suction pipe device for a sheet metal laser cutting machine, which allows the filter element to rotate during suction filtration, achieving uniform filtration and extending the filter element's lifespan. This solves the problem of uneven filtration caused by a fixed filter element in the prior art.

[0006] To achieve the aforementioned goal of rotating the filter element during air suction filtration, thereby achieving uniform filtration and extending the filter element's lifespan, this utility model provides the following technical solution: It includes a U-shaped tube, with two sets of filter components installed at both ends of the U-shaped tube. Each filter component includes a filter box, with rotating grooves on both sides of the filter box's inner cavity. A filter element is rotatably connected to the inner cavity of the filter box. Annular rotating plates are fixedly connected to the outer walls of both sides of the filter element, and these annular rotating plates correspond to the rotating grooves. An annular groove is formed at the top center of the annular rotating plate, and evenly distributed rollers are fixedly connected inside the annular groove, rotating within the groove. Evenly distributed air guide plates are fixedly connected to one side of the filter element's inner cavity. An L-shaped connecting pipe is passed through and fixedly connected to one side of the filter box, corresponding to the filter element. An air guide plate is fixedly connected to the side of the L-shaped connecting pipe closest to the filter box, and this second air guide plate cooperates with the first air guide plate.

[0007] As a further improvement of this utility model: an air suction pipe is threadedly connected to the side of the L-shaped connecting pipe away from the filter box, and an air suction hood is installed on the side of the air suction pipe away from the L-shaped connecting pipe.

[0008] As a further improvement of this utility model: a tee pipe is connected through and fixedly connected to the top center of the U-shaped tube, and a laser cutting machine is provided at the bottom center of the U-shaped tube.

[0009] As a further improvement of this utility model, clamps are fitted on both sides of the outer wall of the U-shaped tube, and the clamps are threadedly connected to the laser cutting machine.

[0010] As a further improvement of this utility model, a threaded cover plate is threadedly connected to the side of the filter box away from the L-shaped connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, after the extracted dust enters the L-shaped connecting pipe with the airflow, the second air guide plate plays an important role in guiding the airflow and precisely directing it to the first air guide plate. The airflow impacts the first air guide plate, and the resulting force drives the filter element to rotate slowly and steadily. At the same time as the filter element rotates, the annular rotating plate connected to it also rotates. With the assistance of rollers, the annular rotating plate rolls smoothly in the rotating groove, greatly reducing the friction during the rotation process and making the entire rotation process more stable and smooth. The rotation method allows all parts of the filter element to contact the dust-laden airflow evenly, greatly improving the comprehensiveness and durability of filtration. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the filter box of this utility model;

[0015] Figure 3 This is a schematic diagram of the interior of the filter box of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is a schematic diagram of the filter element of this utility model;

[0018] Figure 6 This is a schematic diagram of the interior of the L-shaped connecting pipe of this utility model.

[0019] In the diagram: 1. U-shaped pipe; 2. Filter box; 3. Rotating groove; 4. Filter element; 5. Annular rotating plate; 6. Annular groove; 7. Roller; 8. Air guide plate one; 9. L-shaped connecting pipe; 10. Air guide plate two; 11. Suction pipe; 12. Suction hood; 13. T-pipe; 14. Clamp; 15. Laser cutting machine; 16. Threaded cover plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6In this embodiment of the invention, a U-shaped tube 1 is included, with two sets of filter assemblies installed at both ends of the U-shaped tube 1. Each set of filter assemblies includes a filter box 2, with rotating grooves 3 on both sides of the inner cavity of the filter box 2. A filter element 4 is rotatably connected to the inner cavity of the filter box 2. Annular rotating plates 5 are fixedly connected to the outer walls of both sides of the filter element 4, and the annular rotating plates 5 correspond to the rotating grooves 3. An annular groove 6 is opened in the center of the top of the annular rotating plate 5. Rollers 7 are fixedly connected inside the annular groove 6 and rotate within the rotating groove 3. A uniformly distributed air guide plate 10 is fixedly connected to one side of the inner cavity of the filter element 4. When the extracted dust enters the L-shaped connecting pipe 9 with the airflow, the air guide plate 10 plays an important role. Its function is to cleverly guide the airflow, precisely directing it to the air guide plate 8. The airflow impacts the air guide plate 8. An L-shaped connecting pipe 9 is connected through and fixedly to one side of the filter box 2, and the L-shaped connecting pipe 9 corresponds to the filter element 4. An air guide plate 10 is fixedly connected to the inner cavity of the L-shaped connecting pipe 9 near the filter box 2, and the air guide plate 10 cooperates with the air guide plate 8. The force generated drives the filter element 4 to rotate slowly and steadily. At the same time as the filter element 4 rotates, the annular rotating plate 5 connected to it also rotates. With the assistance of the roller 7, the annular rotating plate 5 rolls smoothly in the rotating groove 3, greatly reducing the friction during the rotation process, making the entire rotation process more stable and smooth.

[0022] An air intake pipe 11 is threadedly connected to the side of the L-shaped connecting pipe 9 away from the filter box 2. An air intake hood 12 is installed on the side of the air intake pipe 11 away from the L-shaped connecting pipe 9. A three-way pipe 13 is threaded through and fixedly connected to the top center of the U-shaped pipe 1. A laser cutter 15 is installed at the bottom center of the U-shaped pipe 1. Clamps 14 are fitted on both sides of the outer wall of the U-shaped pipe 1, and the clamps 14 are threadedly connected to the laser cutter 15. In the laser cutting operation of the sheet metal, in order to effectively deal with the dust particles generated during cutting, this device is connected to the rotating groove 3 through an air pump. When the operation starts, the air pump is started, and the air pump generates a strong suction force, so that the airflow passes through the U-shaped pipe 1 in sequence. The filter box 2, L-shaped connecting pipe 9, suction pipe 11, and suction hood 12 collect all the dust particles flying during the cutting process. These collected dust particles flow with the airflow in the pipe and are eventually discharged from the air outlet of the suction pump. The side of the filter box 2 away from the L-shaped connecting pipe 9 is threaded with a threaded cover plate 16. A large amount of dust will gradually accumulate in the filter element 4, affecting the filtration effect. At this time, simply rotate the threaded cover plate 16. During the rotation, the threaded connection between the threaded cover plate 16 and the filter box 2 will gradually loosen until it is completely separated. After opening the filter box 2, the filtered dust in the filter element 4 can be cleaned uniformly.

[0023] The working principle of this utility model is as follows: In the laser cutting of sheet metal, in order to effectively deal with the dust particles generated during cutting, this device is connected to the rotating groove 3 via an air pump. When the operation starts, the air pump is started, and the air pump generates a strong suction force, so that the airflow passes through the U-shaped pipe 1, the filter box 2, the L-shaped connecting pipe 9, the suction pipe 11 and the suction hood 12 in sequence, collecting all the dust particles flying during the cutting process. These collected dust particles flow in the pipe with the airflow and are finally discharged from the air outlet of the air pump.

[0024] When the extracted dust enters the L-shaped connecting pipe 9 with the airflow, the second air guide plate 10 plays an important role in guiding the airflow and accurately directing it to the first air guide plate 8. The airflow impacts the first air guide plate 8, and the force generated drives the filter element 4 to rotate slowly and steadily. At the same time as the filter element 4 rotates, the annular rotating plate 5 connected to it also rotates. With the assistance of the roller 7, the annular rotating plate 5 rolls smoothly in the rotating groove 3, which greatly reduces the friction during the rotation process and makes the whole rotation process more stable and smooth.

[0025] As the usage time increases, a large amount of dust will gradually accumulate inside the filter element 4, affecting the filtration effect. At this time, simply rotate the threaded cover plate 16. During the rotation, the threaded connection between the threaded cover plate 16 and the filter box 2 will gradually loosen until it is completely separated. After opening the filter box 2, the filtered dust inside the filter element 4 can be cleaned uniformly to ensure that the filter element 4 restores its good filtration performance and continues to provide efficient dust filtration services for subsequent cutting operations.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suction pipe device for a sheet metal laser cutting machine, comprising a U-shaped pipe (1), wherein two sets of filter components are installed at both ends of the U-shaped pipe (1), characterized in that: A set of the filter assembly includes a filter box (2), on both sides of the inner cavity of the filter box (2) are provided with rotating grooves (3), and a filter element (4) is rotatably connected to the inner cavity of the filter box (2). Annular rotating plates (5) are fixedly connected to the outer walls of both sides of the filter element (4), and the annular rotating plates (5) correspond to the rotating grooves (3). An annular groove (6) is provided at the top center of the annular rotating plate (5), and uniformly distributed rollers are fixedly connected inside the annular groove (6). The roller (7) rotates in the rotating groove (3). A uniformly distributed air guide plate (8) is fixedly connected to one side of the inner cavity of the filter element (4). An L-shaped connecting pipe (9) is fixedly connected through and to one side of the filter box (2). The L-shaped connecting pipe (9) corresponds to the filter element (4). An air guide plate (10) is fixedly connected to the side of the inner cavity of the L-shaped connecting pipe (9) near the filter box (2). The air guide plate (10) cooperates with the air guide plate (8).

2. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The L-shaped connecting pipe (9) is threadedly connected to the suction pipe (11) on the side away from the filter box (2), and the suction pipe (11) is equipped with a suction hood (12) on the side away from the L-shaped connecting pipe (9).

3. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: A three-way pipe (13) is connected through and fixedly connected to the top center of the U-shaped tube (1), and a laser cutting machine (15) is provided at the bottom center of the U-shaped tube (1).

4. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The outer walls of the U-shaped tube (1) are fitted with clamps (14) on both sides, and the clamps (14) are threadedly connected to the laser cutting machine (15).

5. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The filter box (2) is threaded with a threaded cover plate (16) on the side away from the L-shaped connecting pipe (9).

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