Smoke exhaust device of laser cutting machine

Abstract

The utility model relates to the technical field of cutting machines, and discloses a smoke exhaust device of a laser cutting machine, which comprises an annular smoke suction pipe, a gas filter box and an exhaust fan, the annular smoke suction pipe is sleeved on the outer wall of a laser cutting head, and a plurality of uniformly distributed smoke suction holes are arranged at the bottom of the annular smoke suction pipe. A fixing ring is fixedly arranged at the top of the annular smoke suction pipe, and clamping mechanisms connected with the laser cutting head are arranged on the two sides of the fixing ring correspondingly. A connecting pipe is fixedly arranged on one side of the annular smoke suction pipe, the end, away from the annular smoke suction pipe, of the connecting pipe is fixedly connected with the bottom of one side of the gas filtering box, an activated carbon filtering layer is arranged in the gas filtering box, and the exhaust fan is fixedly installed on the top of the gas filtering box. According to the smoke suction device for the laser cutting machine, smoke generated by the laser cutting machine can be quickly sucked, the smoke is prevented from entering air, the sucked smoke can be filtered, the phenomenon of air pollution cannot be caused, and the safety of workers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to a smoke exhaust device for a laser cutting machine. Background Art

[0002] During the laser cutting process, the processed material will be partially charred or melted, which will be accompanied by a large amount of smoke and dust. This smoke and dust will pollute the laser light path. If the smoke and dust enter the laser cutting head and adhere to its optical components, it will seriously affect the performance of the laser cutting head. In addition, a large amount of smoke will pollute the working environment and thus affect the health of the cutting operators. Therefore, a smoke exhaust device for extracting smoke and dust is usually provided on the side of the laser processing area.

[0003] However, the cutting head of the existing laser cutting machine needs to be constantly changed, so smoke will be generated at different positions on the surface of the workpiece to be cut. Since the conventional smoke exhaust device is fixedly set, it cannot be changed with the position change of the cutting head. The smoke suction effect is poor, resulting in a small amount of smoke being discharged into the air, which still causes harm to the health of the workers. Therefore, a smoke exhaust device for a laser cutting machine is proposed. Utility Model Content

[0004] The utility model aims to solve the problem of poor smoke extraction effect of the smoke exhaust device of the laser cutting machine in the prior art, and proposes a smoke exhaust device for the laser cutting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A smoke exhaust device for a laser cutting machine comprises an annular smoke pipe, a gas filter box and an exhaust fan, wherein the annular smoke pipe is sleeved on the outer wall of a laser cutting head, a plurality of evenly distributed smoking holes are opened at the bottom of the annular smoke pipe, a fixing ring is fixedly provided on the top of the annular smoke pipe, and clamping mechanisms connected to the laser cutting head are provided on both sides of the fixing ring; a connecting pipe is fixedly provided on one side of the annular smoke pipe, an end of the connecting pipe away from the annular smoke pipe is fixedly connected to the bottom of one side of the gas filter box, an activated carbon filter layer is provided inside the gas filter box, and the exhaust fan is fixedly installed on the top of the gas filter box, and the input end of the exhaust fan is fixedly connected to the top of the gas filter box.

[0007] Preferably, the clamping mechanism comprises a clamping bolt and a clamping plate, wherein the clamping bolt is threadedly disposed on a side wall of the fixing ring, the clamping plate is located inside the fixing ring, and a side surface of the clamping plate is rotatably connected to one end of the clamping bolt.

[0008] Preferably, the two clamping plates are both arc-shaped plates, and the two clamping plates form a circular plate.

[0009] Preferably, anti-slip rubber pads are fixedly provided on the inner side walls of the two clamping plates.

[0010] Preferably, the inner diameter of the annular smoking pipe is the same as the inner diameter of the clamping plate.

[0011] Preferably, a support net is fixedly provided in the middle of the gas filter box, the activated carbon filter layer is laid on the upper surface of the support net, and the particle diameter of the activated carbon filter layer is smaller than the mesh aperture of the support net.

[0012] Preferably, a take-in / take-out opening is provided on the side wall of the gas filter box at a position corresponding to the position of the activated carbon filter layer, and a box cover is provided inside the take-in / take-out opening.

[0013] Preferably, mounting rings are fixedly provided on the top and bottom of the gas filter box, and mounting bolts are provided inside the mounting rings.

[0014] Preferably, the connecting pipe is a telescopic bellows.

[0015] Compared with the prior art, the utility model provides a smoke exhaust device for a laser cutting machine, which has the following beneficial effects:

[0016] 1. The smoke exhaust device of the laser cutting machine is provided with an annular smoking pipe, a gas filter box, an exhaust fan and a smoking hole. The annular smoking pipe can be installed on the outer wall of the laser cutting head, and then the power of the exhaust fan is turned on. The exhaust fan can draw the inside of the gas filter box into a negative pressure state, and then generate negative pressure inside the annular suction pipe through the connecting pipe, so that the smoke near the laser cutting head can be quickly sucked out. Since the annular smoking pipe is close to the area where the smoke is generated, the smoke can be quickly sucked out to prevent a small amount of smoke from entering the air. After the smoke enters the gas filter box, it is adsorbed by the activated carbon filter layer and finally discharged into the air without causing air pollution.

[0017] 2. The smoke exhaust device of the laser cutting machine is equipped with a fixing ring, a clamping bolt and a clamping plate. After the annular smoke pipe is sleeved on the outer wall of the cutting head, the clamping bolt is rotated by a wrench. The clamping bolt drives the clamping plate to move during the rotation, so that the clamping plate and the cutting head are set against each other, thereby the annular smoke pipe can be firmly installed on the cutting head.

[0018] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can quickly absorb the smoke generated by the laser cutting machine to prevent the smoke from entering the air, and the smoke after absorption can be filtered and will not cause air pollution, thereby ensuring the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the internal structure of a smoke exhaust device for a laser cutting machine proposed by the utility model;

[0020] Figure 2 for Figure 1 Bottom view of the middle annular smoking pipe;

[0021] Figure 3 for Figure 1 A top view of the middle fixing ring;

[0022] Figure 4 This is a schematic diagram of the external structure of a smoke exhaust device for a laser cutting machine proposed by the utility model.

[0023] In the figure: 1. annular smoking pipe; 2. gas filter box; 3. exhaust fan; 4. smoking hole; 5. fixing ring; 6. connecting pipe; 7. activated carbon filter layer; 8. clamping bolt; 9. clamping plate; 10. anti-slip rubber pad; 11. support net; 12. box cover; 13. mounting ring; 14. mounting bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example 1

[0027] Reference Figure 1-2A smoke exhaust device for a laser cutting machine comprises an annular smoking pipe 1, a gas filter box 2 and an exhaust fan 3. The annular smoking pipe 1 is sleeved on the outer wall of the laser cutting head. A plurality of evenly distributed smoking holes 4 are provided at the bottom of the annular smoking pipe 1. A fixing ring 5 is fixedly provided on the top of the annular smoking pipe 1, and clamping mechanisms connected to the laser cutting head are provided on both sides of the fixing ring 5. A connecting pipe 6 is fixedly provided on one side of the annular smoking pipe 1. One end of the connecting pipe 6 away from the annular smoking pipe 1 is fixedly connected to the bottom of one side of the gas filter box 2. The connecting pipe 6 adopts a telescopic bellows. An activated carbon filter layer 7 is provided inside the gas filter box 2. The exhaust fan 3 is fixedly installed on the gas filter box 2. The top of the filter box 2, and the input end of the exhaust fan 3 is fixedly connected to the top of the gas filter box 2, and the power of the exhaust fan 3 is turned on. The exhaust fan 3 can draw the interior of the gas filter box 2 into a negative pressure state, and then generate negative pressure inside the annular suction pipe 1 through the connecting pipe 6, so that the smoke near the laser cutting head can be quickly sucked through the smoking hole 4. Since the annular smoking pipe 1 is close to the area where the smoke is generated, the smoke can be quickly sucked to prevent a small amount of smoke from entering the air. After the smoke enters the interior of the gas filter box 2, it is adsorbed by the activated carbon filter layer 7 and finally discharged into the air without causing pollution to the air.

[0028] Example 2

[0029] Reference Figure 1 and 3 The clamping mechanism includes a clamping bolt 8 and a clamping plate 9. The clamping bolt 8 is threadedly arranged on the side wall of the fixing ring 5. The clamping plate 9 is located inside the fixing ring 5, and the side of the clamping plate 9 is rotatably connected to one end of the clamping bolt 8. The two clamping plates 9 are both arc-shaped plates, and the two clamping plates 9 form a circular plate. The fixing ring 5 is manually put on the outer wall of the laser cutting head, and then the clamping bolt 8 is rotated by a wrench. The clamping bolt 8 drives the clamping plate 9 to move during the rotation, so that the clamping plate 9 and the cutting head are set against each other, so that the annular smoking pipe 1 can be firmly installed on the laser cutting head; the inner side walls of the two clamping plates 9 are fixed with anti-skid rubber pads 10, and the anti-skid rubber pads 10 can increase the friction resistance between the laser cutting head and the laser cutting head, so as to ensure that the fixing ring 5 and the cutting head are firmly installed. The inner diameter of the annular smoking pipe 1 is the same as the inner diameter of the clamping plate 9.

[0030] Example 3

[0031] Reference Figure 1A support net 11 is fixedly provided in the middle of the gas filter box 2, and the activated carbon filter layer 7 is laid on the upper surface of the support net 11. The particle diameter of the activated carbon filter layer 7 is smaller than the mesh aperture of the support net 11. A take-in and put-out port is provided on the side wall of the gas filter box 2 and corresponding to the position of the activated carbon filter layer 7, and a box cover 12 is provided inside the take-in and put-out port. When the activated carbon filter layer 7 is saturated, the box cover 12 can be opened and the activated carbon filter layer 7 can be replaced through the take-in and put-out port.

[0032] Example 4

[0033] Reference Figure 1 and 4 The top and bottom of the gas filter box 2 are fixedly provided with mounting rings 13, and the interior of the mounting rings 13 is provided with mounting bolts 14, and the mounting rings 13 can be mounted to the cutting machine through the mounting bolts 14, so that the gas filter box 2 is installed on the cutting machine.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A smoke exhaust device for a laser cutting machine, comprising an annular smoke exhaust pipe (1), a gas filter box (2) and an exhaust fan (3), characterized in that: The annular smoking pipe (1) is sleeved on the outer wall of the laser cutting head, a plurality of evenly distributed smoking holes (4) are provided at the bottom of the annular smoking pipe (1), a fixing ring (5) is fixed at the top of the annular smoking pipe (1), and clamping mechanisms connected to the laser cutting head are provided on both sides of the fixing ring (5); A connecting pipe (6) is fixedly provided on one side of the annular smoking pipe (1), and one end of the connecting pipe (6) away from the annular smoking pipe (1) is fixedly connected to the bottom of one side of the gas filter box (2), and an activated carbon filter layer (7) is provided inside the gas filter box (2). The exhaust fan (3) is fixedly installed on the top of the gas filter box (2), and the input end of the exhaust fan (3) is fixedly connected to the top of the gas filter box (2).

2. A smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The clamping mechanism comprises a clamping bolt (8) and a clamping plate (9), wherein the clamping bolt (8) is threadedly arranged on the side wall of the fixing ring (5), the clamping plate (9) is located inside the fixing ring (5), and the side surface of the clamping plate (9) is rotatably connected to one end of the clamping bolt (8).

3. A smoke exhaust device for a laser cutting machine according to claim 2, characterized in that: The two clamping plates (9) are both arc-shaped plates, and the two clamping plates (9) form a circular plate.

4. The smoke exhaust device of a laser cutting machine according to claim 2, characterized in that: The inner side walls of the two clamping plates (9) are both fixedly provided with anti-slip rubber pads (10).

5. The smoke exhaust device of a laser cutting machine according to claim 2, characterized in that: The inner diameter of the annular smoking tube (1) is the same as the inner diameter of the clamping plate (9).

6. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A support net (11) is fixedly provided in the middle of the gas filter box (2), the activated carbon filter layer (7) is laid on the upper surface of the support net (11), and the particle diameter of the activated carbon filter layer (7) is smaller than the mesh aperture of the support net (11).

7. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A take-in and take-out opening is provided on the side wall of the gas filter box (2) at a position corresponding to the position of the activated carbon filter layer (7), and a box cover (12) is provided inside the take-in and take-out opening.

8. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The top and bottom of the gas filter box (2) are both fixedly provided with mounting rings (13), and mounting bolts (14) are provided inside the mounting rings (13).

9. The smoke exhaust device of a laser cutting machine according to claim 1, characterized in that: The connecting pipe (6) is a telescopic bellows.

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