Follow-up smoke exhaust device for laser cutting machine

Abstract

The utility model relates to the technical field of laser cutting, and discloses a follow-up smoke exhaust device for a laser cutting machine, which comprises a working table and connecting plates arranged on the two sides of the top of the working table, connecting rods are fixedly connected to the two sides between the two connecting plates, and the outer walls of the two connecting rods are slidably connected with a mounting table. During cutting, an air pump starts to run, smoke generated by cutting operation is rapidly extracted and collected by means of a suction system composed of an L-shaped pipe, a U-shaped pipe, a filter box and a dust suction pipe, and meanwhile, when a first lead screw motor drives a mounting table to move left and right, a rack linked with the first lead screw motor can drive a gear ring meshed with the first lead screw motor to synchronously rotate. The rotation of the gear ring drives the air filter element to rotate together with the rotating ring through the close fit of the mounting groove and the mounting block, so that the smoke cannot continuously impact the same part of the air filter element, the uniform filtration is realized, and the problem that the local part is blocked due to excessive impurity load is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically a follow-up smoke exhaust device for a 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 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] During laser cutting operations, the equipment generates a large amount of smoke instantly. This smoke is not simply a gaseous substance; it usually contains a large number of impurities. In the smoke extraction devices commonly used in laser cutting machines on the market, air filter filtration is a common purification method. However, this type of device has a significant drawback: during filtration, the air filter is stationary. This causes the smoke airflow carrying many impurities to pass through the same part of the air filter every time, as if pulled by an invisible force, constantly impacting this fixed position. Meanwhile, other parts of the filter are left idle and have virtually no opportunity to participate in filtration. Over time, this part, which is frequently subjected to the load of impurities, will accumulate more and more impurities, easily leading to blockage. Once blocked, the filtration efficiency will decrease rapidly, and the lifespan of the filter will be significantly shortened. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a follow-up smoke exhaust device for laser cutting machines, which has the advantage of balanced filtration. It solves the problems of fixed air filter elements in common devices mentioned in the background technology, where only a single part bears a large load of impurities, making it easy to get clogged, which leads to a sharp decrease in filtration efficiency, frequent replacement of filter elements, and a significant shortening of service life.

[0005] To achieve the aforementioned balanced filtration objective, this utility model provides the following technical solution: It includes a workbench and connecting plates on both sides of the top of the workbench. Connecting rods are fixedly connected to both sides of the two connecting plates. Mounting platforms are slidably connected to the outer walls of the two connecting rods. Support grooves are provided through both sides of the mounting platforms, and the connecting rods slide within the support grooves. A rack is fixedly connected to one side of the top of the two connecting plates. A support block is fixedly connected to one side of the top of the mounting platform. An air pump is fixedly connected to the top of the support block. An L-shaped tube is fixedly connected to one side of the air pump. A U-shaped tube is fixedly connected to the side of the L-shaped tube away from the air pump. Filter boxes are fixedly connected to both ends of the U-shaped tube. A toothed ring is rotatably connected to one side of the inner cavity of one filter box. The teeth of the rack penetrate the filter box and mesh with the toothed ring. A rotating ring is rotatably connected to the side of the inner cavity of the filter box away from the toothed ring. Evenly distributed mounting grooves are provided on the inner walls of both the toothed ring and the rotating ring. An air filter element is installed in the inner cavity of the filter box. Evenly distributed mounting blocks are fixedly connected to both sides of the outer wall of the air filter element, and the mounting blocks cooperate with the mounting grooves.

[0006] As a further improvement of this utility model: a suction pipe is connected through and fixedly to one side of each of the two filter boxes, and the suction pipe is matched with the air filter element. A cross-threaded cap is threadedly connected to the side of the filter box away from the suction pipe.

[0007] As a further improvement of this utility model, an air outlet is fixedly connected to the side of the air pump away from the L-shaped tube.

[0008] As a further improvement of this utility model: a T-shaped rod is fixedly connected to the top of the mounting platform on the side away from the support block, and both sides of the T-shaped rod are fixedly connected to the filter box; a laser cutting machine is provided on one side of the bottom of the mounting platform.

[0009] As a further embodiment of this utility model: a placement platform is fixedly connected to the top of the workbench, a second lead screw motor is installed through and mounted on one side of the placement platform, a sliding plate is slidably connected inside the placement platform, and the sliding plate is threadedly connected to the lead screw part of the second lead screw motor.

[0010] As a further improvement of this utility model: both sides of the sliding plate are fixedly connected to the connecting plate, and both sides of the bottom of the sliding plate are fixedly connected to the support plate.

[0011] As a further improvement of this utility model: the top two sides of the workbench are provided with sliding grooves, and the support plate slides within the sliding grooves.

[0012] As a further embodiment of this utility model: a lead screw motor is installed through one side of a connecting plate, and the lead screw part of the lead screw motor is rotatably connected to the connecting plate on the other side. The lead screw part of the lead screw motor passes through the middle of the mounting platform and is threadedly connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the air pump first starts operating, using a suction system composed of an L-shaped tube, a U-shaped tube, a filter box, and a suction pipe to quickly extract and collect the smoke generated during cutting. Simultaneously, when the lead screw motor drives the mounting platform to move left and right, the linked rack drives the meshing gear ring to rotate synchronously. The rotation of the gear ring, through the tight fit between the mounting groove and the mounting block, causes the air filter element, along with the rotating ring, to rotate together. This ensures that smoke does not continuously impact the same part of the air filter element, achieving uniform filtration and effectively preventing localized clogging due to excessive impurity load. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the support plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the air pump of this utility model;

[0018] Figure 4 This is a schematic diagram of the interior of the filter box of this utility model.

[0019] In the diagram: 1. Workbench; 2. Connecting plate; 3. Connecting rod; 4. Rack; 5. Lead screw motor one; 6. Mounting platform; 7. Support groove; 8. Support block; 9. Air pump; 10. L-shaped tube; 11. U-shaped tube; 12. Filter box; 13. Gear ring; 14. Rotating ring; 15. Air filter element; 16. Mounting block; 17. Mounting groove; 18. Cross thread cap; 19. Dust suction pipe; 20. Air outlet; 21. Laser cutting machine; 22. Placement platform; 23. Lead screw motor two; 24. Sliding plate; 25. Slide groove two; 26. Support plate; 27. T-shaped rod. 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 1-4In this embodiment of the utility model, a workbench 1 and connecting plates 2 are provided on both sides of the top of the workbench 1. Connecting rods 3 are fixedly connected to both sides between the two connecting plates 2. Mounting platforms 6 are slidably connected to the outer walls of the two connecting rods 3. Support grooves 7 are provided through both sides of the mounting platforms 6, and the connecting rods 3 slide in the support grooves 7. A rack 4 is fixedly connected to one side of the top between the two connecting plates 2. A support block 8 is fixedly connected to one side of the top of the mounting platform 6. An air pump 9 is fixedly connected to the top of the support block 8. An L-shaped tube 10 is fixedly connected to one side of the air pump 9. A U-shaped tube 11 is fixedly connected to the side of the L-shaped tube 10 away from the air pump 9. The two ends of the U-shaped tube 11 are fixedly connected to... A filter box 12 is fixedly connected. When the air pump 9 starts operating, a suction system consisting of an L-shaped pipe 10, a U-shaped pipe 11, the filter box 12, and a suction pipe 19 quickly extracts and collects the fumes generated during the cutting operation. A toothed ring 13 is rotatably connected to one side of the inner cavity of the filter box 12. The teeth of the rack 4 penetrate the filter box 12 and mesh with the toothed ring 13. A rotating ring 14 is rotatably connected to the inner cavity of the filter box 12 away from the toothed ring 13. Both the toothed ring 13 and the rotating ring 14 have evenly distributed mounting grooves 17 on their inner walls. An air filter element 15 is installed inside the filter box 12, and evenly distributed mounting grooves 17 are fixedly connected to both sides of the outer wall of the air filter element 15. Mounting block 16, which engages with mounting groove 17, allows the mounting platform 6 to move left and right when the lead screw motor 5 drives it. The rack 4, linked to the rack, drives the meshing gear ring 13 to rotate synchronously. The rotation of the gear ring 13, through the tight engagement of mounting groove 17 and mounting block 16, causes the air filter element 15 to rotate along with the rotating ring 14. This ensures that smoke does not continuously impact the same part of the air filter element 15, achieving uniform filtration and effectively preventing localized blockage due to excessive impurity load. A suction pipe 19 is connected and fixedly attached to one side of each of the two filter boxes 12, and the suction pipe 19 engages with the air filter element 15. The filter box 12 is threaded with a cross-threaded cap 18 on the side away from the suction pipe 19. A large amount of impurities will accumulate inside the air filter element 15. At this time, simply rotate the cross-threaded cap 18 to open it, and the air filter element 15 can be easily removed. At this time, the mounting block 16 will also be disengaged from the mounting groove 17, which is convenient for subsequent cleaning or replacement of the filter element. The air pump 9 is fixedly connected to the air outlet 20 on the side away from the L-shaped pipe 10. A lead screw motor 5 is installed through and installed on one side of the connecting plate 2. The lead screw part of the lead screw motor 5 is rotatably connected to the connecting plate 2 on the other side. The lead screw part of the lead screw motor 5 passes through the middle of the mounting platform 6 and is threaded.

[0022] A T-shaped rod 27 is fixedly connected to the top of the mounting platform 6 on the side away from the support block 8, and both sides of the T-shaped rod 27 are fixedly connected to the filter box 12. The filter box 12 can be supported by the T-shaped rod 27. A laser cutting machine 21 is set on one side of the bottom of the mounting platform 6. A placement platform 22 is fixedly connected to the top of the worktable 1. A lead screw motor 23 is installed through one side of the placement platform 22. A sliding plate 24 is slidably connected inside the placement platform 22, and the sliding plate 24 is threadedly connected to the lead screw of the lead screw motor 23. Both sides of the sliding plate 24 are fixedly connected to the connecting plate 2. Support plates 26 are fixedly connected to both sides of the bottom of the sliding plate 24. The top two sides of the worktable 1 are provided with sliding grooves 25, and the support plate 26 slides in the sliding grooves 25. When the lead screw motor 23 is turned on, it will drive the sliding plate 24 to move along the predetermined track. Since the connecting plate 2 is connected to the sliding plate 24, the sliding plate 24 will drive the connecting plate 2 to move synchronously while moving, thereby enabling the laser cutting machine 21 to move and adjust in the front and back directions. In addition, during the movement of the sliding plate 24, the support plate 26, which is fixedly connected to it, will slide smoothly in the sliding grooves 25, providing reliable support for the entire moving structure, ensuring that the movement process is smooth and stable, and avoiding abnormal situations such as jamming or displacement due to uneven force.

[0023] The working principle of this utility model is as follows: During the operation of the laser cutting machine 21, the smoke purification process is initiated. First, the air pump 9 starts to operate, and with the help of the suction system composed of the L-shaped pipe 10, U-shaped pipe 11, filter box 12, and suction pipe 19, the smoke generated by the cutting operation is quickly extracted and collected. At the same time, when the lead screw motor 5 drives the mounting platform 6 to move left and right, the rack 4 linked to it will drive the toothed ring 13 meshing with it to rotate synchronously. The rotation of the toothed ring 13, through the tight cooperation between the mounting groove 17 and the mounting block 16, causes the air filter element 15 to rotate together with the rotating ring 14. In this way, it can be ensured that the smoke will not continuously impact the same part of the air filter element 15, achieving uniform filtration and effectively avoiding the problem of local blockage due to excessive impurity load. Furthermore, during the movement of the mounting platform 6, the connecting rod 3 will slide smoothly in the support groove 7, providing stable and reliable support for the mounting platform 6 and ensuring the smooth operation of the entire device.

[0024] After prolonged use, a large amount of impurities will accumulate inside the air filter 15. At this time, simply rotate the cross-threaded cap 18 to open it, and the air filter 15 can be easily removed. At this time, the mounting block 16 will also disengage from the mounting slot 17, making it convenient to clean or replace the filter later.

[0025] 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 follow-up smoke exhaust device for a laser cutting machine, comprising a worktable (1) and connecting plates (2) disposed on both sides of the top of the worktable (1), characterized in that: Connecting rods (3) are fixedly connected to both sides of the two connecting plates (2). Mounting platforms (6) are slidably connected to the outer walls of the two connecting rods (3). Support grooves (7) are provided through both sides of the mounting platforms (6), and the connecting rods (3) slide within the support grooves (7). A rack (4) is fixedly connected to one side of the top of the two connecting plates (2). A support block (8) is fixedly connected to one side of the top of the mounting platform (6). An air pump (9) is fixedly connected to the top of the support block (8). An L-shaped tube (10) is fixedly connected to one side of the air pump (9). A U-shaped tube (11) is fixedly connected to the side of the L-shaped tube (10) away from the air pump (9). 11) is fixedly connected to both ends of a filter box (12). A toothed ring (13) is rotatably connected to one side of the inner cavity of the filter box (12). The teeth of the rack (4) penetrate the filter box (12) and mesh with the toothed ring (13). A rotating ring (14) is rotatably connected to the side of the inner cavity of the filter box (12) away from the toothed ring (13). The inner walls of the toothed ring (13) and the rotating ring (14) are provided with uniformly distributed mounting grooves (17). An air filter element (15) is provided in the inner cavity of the filter box (12). The outer walls of the air filter element (15) are fixedly connected with uniformly distributed mounting blocks (16), and the mounting blocks (16) cooperate with the mounting grooves (17).

2. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A suction pipe (19) is connected through and fixed to one side of each of the two filter boxes (12), and the suction pipe (19) is matched with the air filter element (15). A cross-threaded cap (18) is threadedly connected to the side of the filter box (12) away from the suction pipe (19).

3. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: An air outlet (20) is fixedly connected to the side of the air pump (9) away from the L-shaped pipe (10).

4. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A T-shaped rod (27) is fixedly connected to the top of the mounting platform (6) away from the support block (8), and both sides of the T-shaped rod (27) are fixedly connected to the filter box (12). A laser cutter (21) is provided on one side of the bottom of the mounting platform (6).

5. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a placement platform (22). A lead screw motor (23) is installed through and installed on one side of the placement platform (22). A sliding plate (24) is slidably connected inside the placement platform (22), and the sliding plate (24) is threadedly connected to the lead screw of the lead screw motor (23).

6. The follow-up smoke exhaust device for a laser cutting machine according to claim 5, characterized in that: Both sides of the sliding plate (24) are fixedly connected to the connecting plate (2), and both sides of the bottom of the sliding plate (24) are fixedly connected to the support plate (26).

7. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The workbench (1) has two sliding grooves (25) on both sides of its top, and the support plate (26) slides within the sliding grooves (25).

8. The follow-up smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A lead screw motor (5) is installed through one side of the connecting plate (2) on one side, and the lead screw part of the lead screw motor (5) is rotatably connected to the connecting plate (2) on the other side. The lead screw part of the lead screw motor (5) passes through the middle of the mounting platform (6) and is threaded.

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