A smoke exhaust device for a laser cutting machine

Abstract

The utility model provides a kind of smoke exhaust device of laser cutting machine, belong to laser cutting machine technical field, including placing plate, the bottom surface of placing plate is fixedly connected with the support plate of two numbers, the top surface of placing plate is equipped with the positioning slot of two numbers, two the inside of positioning slot is placed with the connecting column of one end through positioning slot and extends to the top of placing plate, two the gas suction assembly for being used to carry out the suction of flue gas is equipped between connecting column, the gas suction assembly includes the moving column of two numbers, two The top surface of connecting column is placed respectively in two moving column. The utility model provides a kind of smoke exhaust device of laser cutting machine can be fixed on connecting bin by mounting bracket, make suction fan and laser cutting head move together, and then the position of suction point is adjusted, improve exhaust effect, by the thread connection between screw rod and connecting column, make connecting column drive connecting bin move, convenient for staff to operate.

Description

Technical Field

[0001] This utility model belongs to the field of laser cutting machine technology and relates to a smoke exhaust device for a laser cutting machine. Background Technology

[0002] A laser cutting machine uses a laser emitted from a laser source, which is focused into a high-power-density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. At the same time, 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 kerf is eventually formed in the material, thus achieving the purpose of cutting.

[0003] Currently, a Chinese patent with publication number CN213560536U discloses a smoke extraction device for a laser cutting machine. This device effectively solves the problem that existing cutting machines generate a large amount of smoke during use, which easily affects the operator's monitoring of the processing status and reduces the overall comfort of the operator. However, in actual use, while the device conveniently extracts smoke through a pump, the movement of the cutting head during laser cutting causes the smoke generation location to change, and since the extraction point is fixed, its smoke extraction effect is poor, reducing the overall effectiveness. Utility Model Content

[0004] The purpose of this invention is to provide a smoke extraction device for a laser cutting machine, which aims to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a smoke exhaust device for a laser cutting machine, including a placement plate. Two support plates are fixedly connected to the bottom surface of the placement plate. Two positioning slots are opened on the top surface of the placement plate. A connecting column with one end penetrating the positioning slot and extending to the top of the placement plate is placed inside each of the two positioning slots. A suction component for drawing smoke is provided between the two connecting columns.

[0006] The air extraction assembly includes two movable columns, which are respectively placed on the top surfaces of two connecting columns. A connecting chamber is fixedly connected between the two movable columns. A laser cutting head is fixedly installed on the inner bottom wall of the mounting frame on the bottom surface of the connecting chamber. An air inlet slot is opened on the bottom surface of the connecting chamber, and an exhaust fan is placed inside the connecting chamber.

[0007] The placement plate is equipped with a drive assembly for moving the connecting column.

[0008] The connecting compartment is equipped with a filter assembly for filtering flue gas.

[0009] The present invention is further configured such that the two connecting columns are slidably connected to the two positioning slots respectively, and the mounting bracket is a U-shaped bracket.

[0010] The present invention is further configured such that the driving assembly includes a driving motor, the driving motor is fixedly installed on the left side of the placement plate, the output shaft of the driving motor is fixedly connected to a screw with one end penetrating the placement plate and extending into the front positioning groove, the screw penetrating the front connecting post, the top surface of the two connecting posts is provided with a mounting groove, the inside of the two mounting grooves is fixedly installed with an electric push rod, the output end of the two electric push rods is fixedly connected to the two moving posts respectively, and the opposite side of the two connecting posts is provided with a wire through hole.

[0011] The present invention is further configured such that the screw is rotatably connected to the placement plate and the front positioning groove respectively through two bearings, and the wire hole and the mounting groove are connected.

[0012] The present invention is further configured such that a threaded hole is provided on the left side of the connecting column located on the front, and the screw passes through the threaded hole and is threadedly connected to it.

[0013] The present invention is further configured such that the filter assembly includes a sealing plate, the sealing plate is placed inside the connecting chamber, two connecting plates are fixedly connected to the bottom surface of the sealing plate and one end of each plate extends into the connecting chamber, the exhaust fan is fixedly installed between the two connecting plates, an air outlet groove is formed on the top surface of the sealing plate, baffles are fixedly connected to the left and right inner walls of the connecting chamber, positioning rods are fixedly connected to the top surfaces of the two baffles, two positioning holes are formed on the bottom surface of the sealing plate, the positioning rods extend into the positioning holes, a filter screen is fixedly connected between the two connecting plates, and an activated carbon filter layer is fixedly connected between the two connecting plates.

[0014] The present invention is further configured such that the connecting chamber is a cuboid with a hollow interior and a missing top surface, the bottom surface of the sealing plate and the top surface of the baffle are fitted together, and the positioning rod and the positioning hole are fitted with a clearance.

[0015] The present invention is further configured such that the activated carbon filter layer is located between the filter screen and the exhaust fan, and the top surface of the filter screen and the bottom surface of the activated carbon filter layer are in contact.

[0016] Compared with existing technologies, this utility model provides a smoke exhaust device for a laser cutting machine. It is fixed to the connecting chamber by a mounting bracket, allowing the exhaust fan and laser cutting head to move together, thereby adjusting the position of the suction point and improving exhaust efficiency. The threaded connection between the screw and the connecting column allows the connecting column to move the connecting chamber, facilitating operation. The sliding connection between the connecting column and the positioning groove supports the connecting column, improving its stability. An electric push rod moves the moving column, allowing for convenient adjustment of the connecting chamber's height and improving usability. Simultaneously, the filter screen and activated carbon filter layer effectively filter the smoke, making it more convenient and practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural view of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the connecting compartment in this utility model from the left side;

[0020] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure of A in the middle.

[0021] The components are as follows: 1. Placement plate; 2. Connecting column; 3. Moving column; 4. Connecting compartment; 5. Sealing plate; 6. Support plate; 7. Screw; 8. Positioning groove; 9. Mounting bracket; 10. Laser cutting head; 11. Drive motor; 12. Mounting groove; 13. Air inlet groove; 14. Filter screen; 15. Activated carbon filter layer; 16. Connecting plate; 17. Exhaust fan; 18. Air outlet groove; 19. Baffle; 20. Positioning rod; 21. Positioning hole; 22. Electric push rod; 23. Threading hole. Detailed Implementation

[0022] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the smoke extraction device for a laser cutting machine according to this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0023] Please see Figures 1 to 4The smoke exhaust device of a laser cutting machine in this embodiment includes a placement plate 1. Two support plates 6 are fixedly connected to the bottom surface of the placement plate 1. Two positioning slots 8 are opened on the top surface of the placement plate 1. A connecting column 2 with one end penetrating the positioning slot 8 and extending to the top of the placement plate 1 is placed inside each of the two positioning slots 8. An air extraction component for drawing smoke is provided between the two connecting columns 2.

[0024] The air extraction assembly includes two movable columns 3, which are placed on the top surfaces of two connecting columns 2 respectively. A connecting chamber 4 is fixedly connected between the two movable columns 3. A laser cutting head 10 is fixedly installed on the inner bottom wall of the mounting frame 9, with one end penetrating the mounting frame 9 and extending to its bottom. An air inlet slot 13 is opened on the bottom surface of the connecting chamber 4, and an exhaust fan 17 is placed inside the connecting chamber 4.

[0025] Among them, the two connecting columns 2 are slidably connected to the two positioning slots 8 respectively, and the mounting bracket 9 is a U-shaped bracket.

[0026] Specifically, the workpiece is placed on the placement plate 1, and the workpiece is cut by the laser cutting head 10. The exhaust fan 17 is started, and the exhaust fan 17 draws the flue gas through the air inlet slot 13 and enters the interior of the connecting chamber 4. Through the sliding connection between the connecting column 2 and the positioning slot 8, the connecting chamber 4 is moved left and right.

[0027] It should be noted that the laser cutting head 10 and the exhaust fan 17 are conventional devices known to the public in the prior art, and their specific structures and working principles will not be described in detail in this article.

[0028] Please see Figures 1 to 4 In this embodiment, the placement plate 1 is provided with a drive assembly for moving the connecting post 2. The drive assembly includes a drive motor 11, which is fixedly installed on the left side of the placement plate 1. The output shaft of the drive motor 11 is fixedly connected to a screw 7 that passes through the placement plate 1 and extends into the front positioning groove 8. The screw 7 passes through the front connecting post 2. The top surfaces of the two connecting posts 2 are provided with mounting grooves 12. Electric push rods 22 are fixedly installed inside the two mounting grooves 12. The output ends of the two electric push rods 22 are fixedly connected to the two moving posts 3 respectively. The opposite sides of the two connecting posts 2 are provided with wire holes 23.

[0029] The screw 7 is rotatably connected to the placement plate 1 and the front positioning groove 8 through two bearings respectively. The wire hole 23 is connected to the mounting groove 12. A threaded hole is opened on the left side of the connecting column 2 on the front. The screw 7 passes through the threaded hole and is threadedly connected to it.

[0030] Specifically, the electric push rod 22 is activated, and the output end of the electric push rod 22 drives the moving column 3 to move upward, thereby adjusting the height of the laser cutting head 10. The drive motor 11 is activated, and the output shaft of the drive motor 11 drives the screw 7 to rotate. Through the threaded connection between the screw 7 and the front connecting column 2, the screw 7 drives the connecting chamber 4 to move through the connecting column 2.

[0031] It should be noted that the electric actuator 22 is a conventional device known in the prior art, and its specific structure and working principle will not be described in detail here. This application can ensure that the output ends of the two electric actuators 22 extend and retract simultaneously by using a synchronization controller or other synchronization device, thereby achieving synchronous operation. These synchronization devices are common and mature in the field of electric control, so they will not be described in detail in the specific embodiments.

[0032] Please see Figures 1 to 4 In this embodiment, the connecting chamber 4 is provided with a filter assembly for filtering flue gas. The filter assembly includes a sealing plate 5, which is placed inside the connecting chamber 4. Two connecting plates 16 are fixedly connected to the bottom surface of the sealing plate 5, with one end extending into the interior of the connecting chamber 4. An exhaust fan 17 is fixedly installed between the two connecting plates 16. An air outlet slot 18 is opened on the top surface of the sealing plate 5. Baffles 19 are fixedly connected to the left and right inner walls of the connecting chamber 4. Positioning rods 20 are fixedly connected to the top surface of the two baffles 19. Two positioning holes 21 are opened on the bottom surface of the sealing plate 5. The positioning rods 20 extend into the interior of the positioning holes 21. A filter screen 14 is fixedly connected between the two connecting plates 16. An activated carbon filter layer 15 is fixedly connected between the two connecting plates 16.

[0033] The connecting chamber 4 is a cuboid with a hollow interior and a missing top surface. The bottom surface of the sealing plate 5 and the top surface of the baffle 19 are attached. The positioning rod 20 and the positioning hole 21 are fitted together with a clearance. The activated carbon filter layer 15 is located between the filter screen 14 and the exhaust fan 17. The top surface of the filter screen 14 and the bottom surface of the activated carbon filter layer 15 are attached together.

[0034] Specifically, the sealing plate 5 is pushed into the interior of the connecting chamber 4, where it fits against the baffle 19. The positioning rod 20 is inserted into the positioning hole 21, and the sealing plate 5 is restricted by the gap between the positioning rod 20 and the positioning hole 21. The filter is then filtered through the filter screen 14 and the activated carbon filter layer 15.

[0035] The working principle of the above embodiments is as follows:

[0036] Push the sealing plate 5 into the interior of the connecting chamber 4. The sealing plate 5 and the baffle 19 fit together. The positioning rod 20 is inserted into the positioning hole 21 to restrict the sealing plate 5. Start the electric push rod 22. The output end of the electric push rod 22 drives the moving column 3 to move upward, thereby adjusting the height of the laser cutting head 10. The workpiece is placed on the placement plate 1 and cut by the laser cutting head 10. Start the exhaust fan 17 to draw the flue gas. The flue gas passes through the air inlet slot 13 and enters the interior of the connecting chamber 4. It is filtered by the filter screen 14 and the activated carbon filter layer 15. The filtered flue gas passes through the air outlet slot 18 and exits the connecting chamber 4. Start the drive motor 11 to drive the screw 7 to rotate. Through the threaded connection between the screw 7 and the front connecting column 2 and the sliding connection between the connecting column 2 and the positioning slot 8, the screw 7 drives the connecting chamber 4 to move through the connecting column 2, causing the connecting chamber 4 to move left and right.

[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0038] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0039] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A smoke extraction device for a laser cutting machine, characterized in that, Includes a placement plate (1), the bottom surface of which is fixedly connected to two support plates (6), the top surface of which is provided with two positioning slots (8), and each of the two positioning slots (8) is provided with a connecting column (2) that extends through the positioning slot (8) and reaches the top of the placement plate (1), and a suction assembly for drawing flue gas is provided between the two connecting columns (2). The air extraction assembly includes two movable columns (3), which are respectively placed on the top surfaces of two connecting columns (2). A connecting chamber (4) is fixedly connected between the two movable columns (3). A laser cutting head (10) is fixedly installed on the bottom surface of the connecting chamber (4) through the inner bottom wall of the mounting frame (9) and extending to its bottom. An air inlet slot (13) is opened on the bottom surface of the connecting chamber (4). An exhaust fan (17) is placed inside the connecting chamber (4). The placement plate (1) is provided with a drive assembly for moving the connecting column (2), and the connecting chamber (4) is provided with a filter assembly for filtering the flue gas.

2. The smoke extraction device for a laser cutting machine according to claim 1, characterized in that: The two connecting columns (2) are slidably connected to the two positioning slots (8) respectively, and the mounting bracket (9) is a U-shaped bracket.

3. The smoke extraction device for a laser cutting machine according to claim 1, characterized in that: The drive assembly includes a drive motor (11), which is fixedly installed on the left side of the placement plate (1). The output shaft of the drive motor (11) is fixedly connected to a screw (7) that passes through the placement plate (1) and extends into the front positioning groove (8). The screw (7) passes through the front connecting post (2). The top surfaces of the two connecting posts (2) are provided with mounting grooves (12). Electric push rods (22) are fixedly installed inside the two mounting grooves (12). The output ends of the two electric push rods (22) are fixedly connected to the two moving posts (3) respectively. The opposite sides of the two connecting posts (2) are provided with wire holes (23).

4. The smoke extraction device for a laser cutting machine according to claim 3, characterized in that: The screw (7) is rotatably connected to the placement plate (1) and the front positioning groove (8) respectively through two bearings, and the thread hole (23) and the mounting groove (12) are connected.

5. The smoke extraction device for a laser cutting machine according to claim 3, characterized in that: A threaded hole is provided on the left side of the connecting post (2) located on the front, and the screw (7) passes through the threaded hole and is threadedly connected to it.

6. The smoke extraction device for a laser cutting machine according to claim 3, characterized in that: The filter assembly includes a sealing plate (5), which is placed inside the connecting chamber (4). Two connecting plates (16) are fixedly connected to the bottom surface of the sealing plate (5) and one end of each plate extends into the connecting chamber (4). The exhaust fan (17) is fixedly installed between the two connecting plates (16). An air outlet groove (18) is provided on the top surface of the sealing plate (5). Baffles (19) are fixedly connected to the left and right inner walls of the connecting chamber (4). Positioning rods (20) are fixedly connected to the top surfaces of the two baffles (19). Two positioning holes (21) are provided on the bottom surface of the sealing plate (5). The positioning rods (20) extend into the positioning holes (21). A filter screen (14) is fixedly connected between the two connecting plates (16). An activated carbon filter layer (15) is fixedly connected between the two connecting plates (16).

7. The smoke extraction device for a laser cutting machine according to claim 6, characterized in that: The connecting chamber (4) is a cuboid with a hollow interior and a missing top surface. The bottom surface of the sealing plate (5) and the top surface of the baffle (19) are attached. The positioning rod (20) and the positioning hole (21) are fitted with a clearance.

8. The smoke extraction device for a laser cutting machine according to claim 6, characterized in that: The activated carbon filter layer (15) is located between the filter screen (14) and the exhaust fan (17), with the top surface of the filter screen (14) and the bottom surface of the activated carbon filter layer (15) in contact.

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