Smoke exhaust device of laser cutting machine

By designing exhaust and spraying mechanisms in laser cutting machines, the problem of smoke and dust rising and lens pollution was solved, and the effective filtration and environmental purification of smoke and dust were realized.

CN222403994UActive Publication Date: 2025-01-28CHENGDU QILIN CLOUD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202420764015.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2025-01-28
Estimated Expiration
2034-04-15

AI Technical Summary

Technical Problem

The smoke and metal dust generated by laser cutting machines during the cutting process pollute the environment and endanger workers' health. The existing smoke exhaust devices have problems such as smoke rising and lens pollution.

Method used

Design a laser cutting machine smoke exhaust device, including air exhaust mechanism and spraying mechanism. The exhaust mechanism is inhaled and filtering the dust of the smoke through the main fan and auxiliary exhaust fans; spraying the water fog through the spraying water pump and nozzle, spray the water mist, so that the smoke is moisture, reduce its floating ability, and facilitate filtering.

Benefits of technology

Effectively avoid the damage to the laser cutting lenses from fluttering upwards. At the same time, the main fan below is filtered all the smoke and dust, which significantly improves the cleanliness of the working environment and the health and safety of the workers.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a smoke exhaust device of a laser cutting machine. The smoke exhaust device comprises a cutting machine main body, an exhaust mechanism is arranged in the cutting machine body, a spraying mechanism is arranged on one side of the cutting machine body, a laser cutting mechanism is arranged on the cutting machine body, a partition plate is installed in the cutting machine body, and supporting legs are installed at the bottom of the cutting machine body. The exhaust mechanism comprises a main exhaust fan motor, the main exhaust fan motor is installed on a partition plate, a main exhaust fan rotating shaft is installed on the main exhaust fan motor, a main exhaust fan is installed on the main exhaust fan rotating shaft, a filter element is installed below the partition plate, and an auxiliary exhaust fan connecting rod is installed above the cutting machine body. The auxiliary exhaust fan blade is arranged beside the connecting plate, the auxiliary exhaust fan blade rotates to blow air downwards in the working process, smoke flying in a working area can be blown to the lower portion, the situation that the smoke flies upwards to damage a laser cutting lens can be avoided, and the auxiliary exhaust fan blade can assist a main exhaust fan below in filtering all the smoke.
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Description

Technical Field

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

[0002] The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a cut is eventually formed in the material, thereby achieving the purpose of cutting. A large amount of smoke and metal dust will be generated during the laser cutting process, which not only pollutes the environment, but also poses a threat to the health of workers.

[0003] The existing smoke exhaust device of the cutting machine is usually installed at the bottom of the machine. During processing, some smoke will rise and cannot be inhaled. Some smoke exhaust devices have the suction port arranged above the workbench. Although the rising smoke can be inhaled, it will also contaminate the lens of the cutting head, causing certain damage to the equipment and affecting the processing. Therefore, a laser cutting machine smoke exhaust device is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke exhaust device for a laser cutting machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke exhaust device for a laser cutting machine, comprising a cutting machine body; an exhaust mechanism is provided in the cutting machine body, a spray mechanism is provided on one side of the cutting machine body, a laser cutting mechanism is provided on the cutting machine body, a partition is installed in the cutting machine body, and a support leg is installed at the bottom of the cutting machine body;

[0006] Preferably, the exhaust mechanism includes a main exhaust fan motor, which is installed on a partition, a main exhaust fan rotating shaft is installed on the main exhaust fan motor, a main exhaust fan fan is installed on the main exhaust fan rotating shaft, a filter element is installed below the partition, an auxiliary exhaust fan connecting rod is installed above the cutting machine body, an auxiliary exhaust fan chassis is installed on the auxiliary exhaust fan connecting rod, an auxiliary exhaust fan motor is installed in the auxiliary exhaust fan chassis, an auxiliary exhaust fan rotating shaft is installed on the auxiliary exhaust fan motor, and auxiliary exhaust fan blades are installed on the auxiliary exhaust fan rotating shaft.

[0007] Preferably, the spray mechanism includes a water tank, which is installed on one side of the cutting machine body. A spray water pump is installed in the water tank, an L-shaped water outlet pipe is installed on the spray water pump, a connecting pipe is installed on the L-shaped water outlet pipe, and a nozzle is installed on the connecting pipe.

[0008] Preferably, the water tank is provided with a water inlet hole, a water inlet plug is installed in the water inlet hole, a water outlet is provided on one side of the water tank, the L-shaped water outlet pipe is installed in the water outlet, a hole is provided on one side of the cutting machine body, and the connecting pipe is installed in the hole.

[0009] Preferably, the laser cutting mechanism includes two main body slide rails, which are symmetrically installed on the cutting machine body, and both of the two main body slide rails are provided with main body slide grooves, and the same connecting frame is slidably installed in the two main body slide grooves, a slider is installed on the connecting frame, a connecting plate is installed on the slider, and a cutting head is installed on the connecting plate.

[0010] Preferably, a connecting frame slide groove is opened on the connecting frame, the sliding block is slidably installed in the connecting frame slide groove, and the auxiliary exhaust fan connecting rod is installed on the connecting plate.

[0011] Preferably, a working platform plate is installed on the cutting machine body, a partition net is installed in the cutting machine body, and the partition net is installed between the working platform plate and the main exhaust fan.

[0012] Preferably, a hole is opened on one side of the cutting machine body, and a filter element compartment cover is installed in the hole.

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

[0014] (1) The utility model provides an auxiliary exhaust fan blade next to the connecting plate. When in operation, the auxiliary exhaust fan blade rotates to blow air downward, so as to blow the smoke and dust flying in the working area downward, thereby preventing the smoke and dust from flying upward and damaging the laser cutting lens, and assisting the main exhaust fan below to filter out all the smoke and dust.

[0015] (2) The water in the water tank is sprayed out through the nozzle through the spray pump and L-shaped water outlet pipe. The damp smoke will no longer float upward due to the influence of gravity. At the same time, the damp smoke can be more easily attached to the filter element, which plays a great auxiliary role in the smoke exhaust system and better filters out impurities in the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a smoke exhaust device for a laser cutting machine proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of a water tank and an L-shaped water outlet pipe and other structures of a smoke exhaust device for a laser cutting machine proposed by the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of a smoke exhaust device for a laser cutting machine proposed in the utility model;

[0019] Figure 4 for Figure 2 A magnified image of point A;

[0020] Figure 5 The utility model is a schematic diagram of the structure of a partition screen and a main exhaust fan motor of a smoke exhaust device for a laser cutting machine.

[0021] In the figure: 1. Cutting machine body; 2. Exhaust mechanism; 3. Spray mechanism; 4. Laser cutting mechanism; 5. Partition; 6. Support leg; 7. Filter element compartment cover; 8. Working platform plate; 9. Partition net; 20. Auxiliary exhaust fan chassis; 21. Auxiliary exhaust fan connecting rod; 22. Auxiliary exhaust fan motor; 23. Auxiliary exhaust fan rotating shaft; 24. Auxiliary exhaust fan blade; 25. Main exhaust fan motor; 26. Main exhaust fan rotating shaft; 27. Main exhaust fan fan; 28. Filter element; 30. Water tank; 31. Water inlet hole; 32. Water outlet; 33. Water inlet plug; 34. L-shaped water outlet pipe; 35. Spray water pump; 36. Nozzle; 37. Connecting pipe; 40. Cutting head; 41. Main body slide rail; 42. Main body slide groove; 43. Connecting frame; 44. Connecting frame slide groove; 45. Sliding block; 46. Connecting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: a smoke exhaust device for a laser cutting machine, including a cutting machine body 1; in order to prevent smoke from flying upward and damaging the laser cutting lens, an exhaust mechanism 2 is provided in the cutting machine body 1, a spray mechanism 3 is provided on one side of the cutting machine body 1, a laser cutting mechanism 4 is provided on the cutting machine body 1, a partition 5 is installed in the cutting machine body 1, and a supporting leg 6 is installed at the bottom of the cutting machine body 1. The exhaust mechanism 2 prevents smoke from flying upward, and the spray mechanism 3 can make the smoke more easily adhere.

[0024] In order to achieve the function of preventing smoke and dust from rising, the exhaust mechanism 2 includes a main exhaust fan motor 25, which is installed on the partition 5, and a main exhaust fan rotating shaft 26 is installed on the main exhaust fan motor 25, and a main exhaust fan fan 27 is installed on the main exhaust fan rotating shaft 26, and a filter element 28 is installed under the partition 5. An auxiliary exhaust fan connecting rod 21 is installed above the cutting machine body 1, and an auxiliary exhaust fan chassis 20 is installed on the auxiliary exhaust fan connecting rod 21. An auxiliary exhaust fan motor 22 is installed in the auxiliary exhaust fan chassis 20, and an auxiliary exhaust fan rotating shaft 23 is installed on the auxiliary exhaust fan motor 22. Auxiliary exhaust fan blades 24 are installed on the auxiliary exhaust fan rotating shaft 23, a working platform plate 8 is installed on the cutting machine body 1, and a partition net 9 is installed in the cutting machine body 1. The partition net 9 is installed between the working platform plate 8 and the main exhaust fan fan 27, and a hole is opened on one side of the cutting machine body 1, and a Filter element compartment cover 7, when the cutting head 40 is working, the auxiliary exhaust fan motor 22 drives the auxiliary exhaust fan rotating shaft 23 to rotate, and the auxiliary exhaust fan rotating shaft 23 drives the auxiliary exhaust fan blades 24 to rotate. The auxiliary exhaust fan blades 24 generate downward airflow, which can blow the smoke and dust generated by the cutting head 40 when cutting into the bottom, which can prevent the flying smoke and dust from falling on the laser cutting lens and damaging the lens, thereby affecting the cutting efficiency. At the same time, the main exhaust fan motor 25 drives the main exhaust fan rotating shaft 26 to rotate, and when the main exhaust fan rotating shaft 26 rotates, it drives the main exhaust fan fan 27 to rotate. The main exhaust fan fan 27 rotates to generate suction, which can suck the smoke and dust from the top into the bottom, and the smoke and dust are filtered through the filter element 28. The filtered air is discharged from the mesh at the bottom of the cutting machine body 1. After long-term use, the filter element 28 will be covered with impurities, affecting the filtering effect. At this time, the filter element 28 can be replaced through the filter element compartment cover 7 on the cutting machine body 1.

[0025] The working principle is: first open the water inlet plug 33, fill the water tank 30 with water and then plug the water inlet plug 33 back, then place the workpiece on the working platform plate 8, when the cutting head 40 is working, the connecting frame 43 slides in the main body slide groove 42 to adjust the lateral direction of the cutting head 40, and the connecting plate 46 slides in the connecting frame slide groove 44 through the slider 45 to adjust the longitudinal direction of the cutting head 40. When the cutting head 40 is working, the auxiliary exhaust fan motor 22 drives the auxiliary exhaust fan rotating shaft 23 to rotate, and the auxiliary exhaust fan rotating shaft 23 drives the auxiliary exhaust fan blades 24 to rotate. The auxiliary exhaust fan blades 24 generate a downward airflow, which can blow the smoke and dust generated by the cutting head 40 when cutting into the bottom, which can prevent the flying smoke and dust from falling on the laser cutting lens to damage the lens and affect the cutting efficiency. At the same time, through the main exhaust fan motor 25 drives the main exhaust fan rotating shaft 26 to rotate, and when the main exhaust fan rotating shaft 26 rotates, it drives the main exhaust fan fan 27 to rotate. The main exhaust fan fan 27 rotates to generate suction, which can suck the smoke and dust above into the bottom. The water in the water tank 30 can be sucked into the L-shaped water outlet pipe 34 through the spray water pump 35. After flowing through the connecting pipe 37 from the L-shaped water outlet pipe 34, water mist is sprayed out from the nozzle 36. The continuously sprayed water mist can make the smoke and dust get damp and aggravate, and prevent the inhaled smoke and dust from flying out again. The damp smoke and dust can be more easily attached to the filter element 28, and the smoke and dust are filtered through the filter element 28. The filtered air is discharged from the mesh at the bottom of the cutting machine body 1. After long-term use, the filter element 28 will be covered with impurities, affecting the filtering effect. At this time, the filter element 28 can be replaced through the filter element compartment cover 7 on the cutting machine body 1.

[0026] Example 2: Figure 1-5In order to make the inhaled smoke and dust easier to be adsorbed, the spray mechanism 3 includes a water tank 30, which is installed on one side of the cutting machine body 1. A spray water pump 35 is installed in the water tank 30, and an L-shaped water outlet pipe 34 is installed on the spray water pump 35. A connecting pipe 37 is installed on the L-shaped water outlet pipe 34, and a nozzle 36 is installed on the connecting pipe 37. A water inlet hole 31 is opened on the water tank 30, and a water inlet plug 33 is installed in the water inlet hole 31. A water outlet 32 ​​is opened on one side of the water tank 30, and the L-shaped water outlet pipe 34 is installed in the water outlet 32. The cutting machine body A hole is opened on one side of the body 1, and the connecting pipe 37 is installed in the hole. The laser cutting mechanism 4 includes two main body slide rails 41, and the two main body slide rails 41 are symmetrically installed on the cutting machine body 1. The two main body slide rails 41 are both provided with main body slide grooves 42. The same connecting frame 43 is slidably installed in the two main body slide grooves 42. A slider 45 is installed on the connecting frame 43, and a connecting plate 46 is installed on the slider 45. The cutting head 40 is installed on the connecting plate 46. The connecting frame 43 is provided with a connecting frame slide groove 44, and the slider 45 is slidably installed in the connecting frame slide groove 44, the auxiliary exhaust fan connecting rod 21 is installed on the connecting plate 46, the water inlet plug 33 is opened, the water tank 30 is filled with water and then the water inlet plug 33 is plugged back, and then the workpiece is placed on the working platform plate 8. When the cutting head 40 is working, the connecting frame 43 slides in the main body slide groove 42 to adjust the lateral direction of the cutting head 40, and the connecting plate 46 slides in the connecting frame slide groove 44 through the slider 45 to adjust the longitudinal direction of the cutting head 40. The water in the water tank 30 can be sucked into the L-shaped water outlet pipe 34 through the spray water pump 35, and the workpiece is placed on the working platform plate 8. The L-shaped water outlet pipe 34 flows through the connecting pipe 37 and then sprays water mist from the nozzle 36. The continuously sprayed water mist can make the smoke dust more damp and prevent the inhaled smoke dust from flying out again. The damp smoke dust can more easily adhere to the filter element 28. The smoke dust is filtered through the filter element 28, and the filtered air is discharged from the mesh at the bottom of the cutting machine body 1. After long-term use, the filter element 28 will be covered with impurities, affecting the filtering effect. At this time, the filter element 28 can be replaced through the filter element compartment cover 7 on the cutting machine body 1. The remaining features are the same as those in Example 1.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke exhaust device for a laser cutting machine, comprising a cutting machine body (1); characterized in that: An exhaust mechanism (2) is provided in the cutting machine body (1), a spray mechanism (3) is provided on one side of the cutting machine body (1), a laser cutting mechanism (4) is provided on the cutting machine body (1), a partition (5) is installed in the cutting machine body (1), and a supporting leg (6) is installed at the bottom of the cutting machine body (1); The exhaust mechanism (2) comprises a main exhaust fan motor (25), the main exhaust fan motor (25) is mounted on the partition (5), a main exhaust fan rotating shaft (26) is mounted on the main exhaust fan motor (25), a main exhaust fan fan (27) is mounted on the main exhaust fan rotating shaft (26), a filter element (28) is mounted below the partition (5), an auxiliary exhaust fan connecting rod (21) is mounted above the cutting machine body (1), an auxiliary exhaust fan chassis (20) is mounted on the auxiliary exhaust fan connecting rod (21), an auxiliary exhaust fan motor (22) is mounted in the auxiliary exhaust fan chassis (20), an auxiliary exhaust fan rotating shaft (23) is mounted on the auxiliary exhaust fan motor (22), and auxiliary exhaust fan blades (24) are mounted on the auxiliary exhaust fan rotating shaft (23).

2. A smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The spray mechanism (3) comprises a water tank (30), the water tank (30) being mounted on one side of the cutting machine body (1), a spray water pump (35) being mounted in the water tank (30), an L-shaped water outlet pipe (34) being mounted on the spray water pump (35), a connecting pipe (37) being mounted on the L-shaped water outlet pipe (34), and a spray head (36) being mounted on the connecting pipe (37).

3. A smoke exhaust device for a laser cutting machine according to claim 2, characterized in that: The water tank (30) is provided with a water inlet hole (31), a water inlet plug (33) is installed in the water inlet hole (31), a water outlet (32) is provided on one side of the water tank (30), the L-shaped water outlet pipe (34) is installed in the water outlet (32), and a hole is provided on one side of the cutting machine body (1), and the connecting pipe (37) is installed in the hole.

4. A smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The laser cutting mechanism (4) comprises two main body slide rails (41), the two main body slide rails (41) are symmetrically mounted on the cutting machine body (1), the two main body slide rails (41) are both provided with a main body slide groove (42), a same connecting frame (43) is slidably mounted in the two main body slide grooves (42), a slider (45) is mounted on the connecting frame (43), a connecting plate (46) is mounted on the slider (45), and a cutting head (40) is mounted on the connecting plate (46).

5. A smoke exhaust device for a laser cutting machine according to claim 4, characterized in that: The connecting frame (43) is provided with a connecting frame sliding groove (44), the sliding block (45) is slidably installed in the connecting frame sliding groove (44), and the auxiliary exhaust fan connecting rod (21) is installed on the connecting plate (46).

6. A smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A working platform plate (8) is installed on the cutting machine body (1), and a partition net (9) is installed inside the cutting machine body (1), wherein the partition net (9) is installed between the working platform plate (8) and the main exhaust fan (27).

7. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A hole is opened on one side of the cutting machine body (1), and a filter element compartment cover (7) is installed in the hole.