Air suction pipe device of plate laser cutting machine

Abstract

The utility model discloses a plate laser cutting machine air suction pipe device which comprises a machine body, a laser cutting head is arranged on the surface of the lower end of the machine body, the outer surface of the upper end of the laser cutting head is fixedly connected with a variable-diameter gas collecting hood, and a triangular ring shell is arranged on the surface of the inner side of the variable-diameter gas collecting hood. Air suction ports are formed in the surface of the lower end of the triangular ring shell, each air suction port is of a strip-shaped opening structure, the air suction ports are evenly distributed in the lower surface of a circle of the triangular ring shell, and an air suction pipe is fixedly connected to the surface of the inner side of the outer end of the variable-diameter air collecting cover and communicates with the triangular ring shell. A square storage shell is arranged at the outer end of the air suction pipe, a turbofan is fixedly connected to the end face of the outer end of the air suction pipe, the surface of the inner side of the square storage shell is filled with an activated carbon filter cotton block, a variable-diameter air collecting hood structure is arranged, the laser cutting head can be surrounded by the variable-diameter air collecting hood structure to suck away generated smoke, comprehensive adsorption is achieved, and the efficiency is high; the activated carbon filter cotton is filled outside, so that the activated carbon filter cotton block can be quickly replaced, and the use is convenient.

Description

Technical Field

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

[0002] A laser cutting machine is a device that uses laser technology to cut and process materials. It uses a high-energy laser beam to melt, vaporize, or burn materials, thereby achieving precise cutting. The working principle of a laser cutting machine is that a high-power-density laser beam is emitted from a laser and irradiates the surface of the workpiece, causing the material 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. High precision: The kerf width of a laser cutting machine is very narrow, generally between 0.1mm and 0.3mm, and the kerf is smooth and flat, requiring no further processing. Fast cutting: Laser cutting is fast and efficient, suitable for large-scale production. Not limited to cutting patterns: Laser cutting machines can cut blanks of various complex shapes without the need for molds, saving time and costs. The laser cutting process generates less heat, resulting in less environmental impact. Wide range of applications: It can be used to cut various materials such as metals (such as steel and aluminum), plastics, wood, textiles, and stone.

[0003] The laser cutting machine uses a laser beam 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. During sheet metal processing, the fine particles (dust) generated during the laser cutting process are sucked into the suction pipe by the dust collection device on the laser cutting machine and fall into the dust collection box. However, because the size of the particles varies during the cutting process, the suction pipe is very easy to clog, especially in horizontally set pipes. The particles are very easy to fall and adhere to the pipe wall. If a blockage occurs, professional personnel are required to disassemble and unclog the suction pipe, and the disassembly process is also very troublesome.

[0004] In existing technology, such as the authorized announcement number CN218135739U, this utility model discloses a suction pipe device for a sheet metal laser cutting machine, including a lower drive assembly, an air extraction device, a side plate, an upper drive assembly, a lifting hydraulic press, a laser cutting device, a support plate, and a base plate. The lower drive assembly is symmetrically arranged at both ends of the top of the base plate. The side plate is arranged on the lower drive assembly, the upper drive assembly is arranged on the upper side of the side plate, the lifting hydraulic press is arranged below the upper drive assembly, the laser cutting device is arranged below the lifting hydraulic press, the air extraction device is arranged on the side of the lifting hydraulic press, and the support plate is arranged at the center of the top of the base plate. This utility model belongs to the field of medical device technology, specifically referring to a suction pipe device for a sheet metal laser cutting machine.

[0005] In the aforementioned patent, the suction pipe is located on one side of the laser cutting head. During laser cutting, the laser head moves at a high speed and frequency, and the smoke generated after laser cutting is large. It is difficult to completely absorb the smoke from one side, resulting in low smoke absorption efficiency. Furthermore, the filter component is inconvenient to replace and maintain after absorption. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a suction pipe device for a sheet metal laser cutting machine. By setting a variable diameter gas collection hood structure, it can surround the laser cutting head to suck away the generated fumes, achieving comprehensive adsorption and high efficiency. Its exterior is filled with activated carbon filter cotton, which facilitates quick replacement of the activated carbon filter cotton blocks and is convenient to use.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A suction pipe device for a sheet metal laser cutting machine includes a body. A laser cutting head is mounted on the lower surface of the body. A variable-diameter gas collection hood is fixedly connected to the upper outer surface of the laser cutting head. A triangular ring shell is mounted on the inner surface of the variable-diameter gas collection hood. An air intake port is formed on the lower surface of the triangular ring shell. The air intake port has a strip-shaped opening structure and is evenly distributed around the lower surface of the triangular ring shell. An air intake pipe is fixedly connected to the inner surface of the outer end of the variable-diameter gas collection hood. The air intake pipe communicates with the triangular ring shell. A square storage shell is mounted on the outer end of the air intake pipe. A turbine fan is fixedly connected to the outer end face of the air intake pipe. Activated carbon filter cotton blocks are filled on the inner surface of the square storage shell. By setting the variable-diameter gas collection hood structure, it can surround the laser cutting head and suck away the generated smoke, achieving comprehensive adsorption and high efficiency. The activated carbon filter cotton filling on the outside facilitates quick replacement of the activated carbon filter cotton blocks, making it convenient to use.

[0009] Furthermore, the air inlet on one side of the turbine fan is fixedly connected to the outer end face of the suction pipe.

[0010] Furthermore, the activated carbon filter cotton block is slidably placed on the inner surface of the square storage shell, and the thickness of the activated carbon filter cotton block is not less than five centimeters.

[0011] Furthermore, a cover plate is fixedly installed on the upper surface of the square storage shell, and the cover plate adopts a convex cover structure.

[0012] Furthermore, the cover plate is fixedly connected to the upper surface of the square storage shell by bolts, with two bolts distributed on the left and right sides to fix the cover plate.

[0013] Furthermore, the variable diameter gas collecting hood is fixed around the laser cutting head, and the upper outer surface of the laser cutting head is provided with external threads. The inner surface of the variable diameter gas collecting hood is connected to the upper outer surface of the laser cutting head by threads.

[0014] Furthermore, the upper surface of the variable diameter gas collection hood is covered with a rubber layer.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) By setting up a variable diameter gas collection hood structure, it can surround the laser cutting head to absorb the generated smoke, achieve comprehensive adsorption, and have high efficiency. Its exterior is filled with activated carbon filter cotton, which makes it easy to quickly replace the activated carbon filter cotton block and is convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a first schematic diagram showing the distribution relationship between the variable diameter air collecting shroud and the worm gear fan of this utility model;

[0019] Figure 3 This is a second schematic diagram showing the distribution relationship between the variable diameter air collecting shroud and the worm gear fan of this utility model;

[0020] Figure 4 This is a third schematic diagram showing the distribution relationship between the variable diameter air collecting shroud and the worm gear fan of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram showing the distribution relationship between the variable diameter air collector and the laser cutting head of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Body, 2. Laser cutting head, 3. Variable diameter gas collection hood, 4. Triangular ring shell, 5. Air intake port, 6. Air intake pipe, 7. Storage shell, 8. Activated carbon filter cotton block, 9. Turbine fan, 10. Cover plate, 11. Bolts. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-5A suction pipe device for a sheet metal laser cutting machine includes a body 1. A laser cutting head 2 is mounted on the lower surface of the body 1. A variable diameter gas collection hood 3 is fixedly connected to the upper outer surface of the laser cutting head 2. A triangular ring shell 4 is mounted on the inner surface of the variable diameter gas collection hood 3. An air intake 5 is opened on the lower surface of the triangular ring shell 4. The air intake 5 adopts a strip-shaped opening structure and is evenly distributed around the lower surface of the triangular ring shell 4. An air intake pipe 6 is fixedly connected to the inner surface of the outer end of the variable diameter gas collection hood 3. The air intake pipe 6 communicates with the triangular ring shell 4. A square storage shell 7 is mounted on the outer end of the air intake pipe 6. A turbine fan 9 is fixedly connected to the outer end face of the air intake pipe 6. Activated carbon filter cotton blocks 8 are filled on the inner surface of the square storage shell 7. By setting the variable diameter gas collection hood structure, it can surround the laser cutting head to suck away the generated smoke, achieving comprehensive adsorption and high efficiency. The activated carbon filter cotton is filled on the outside, making it easy to quickly replace the activated carbon filter cotton blocks and convenient to use.

[0027] An air inlet is provided on one side of the turbine fan 9, and the air inlet is fixedly connected to the outer end face of the suction pipe 6; this facilitates air intake.

[0028] The activated carbon filter cotton block 8 is slidably placed on the inner surface of the square storage shell 7. The thickness of the activated carbon filter cotton block 8 is not less than five centimeters. This facilitates the filtering of flue gas and dust, as well as the filtering of odors, making the laser cutting process more environmentally friendly.

[0029] A cover plate 10 is fixedly installed on the upper surface of the square storage shell 7. The cover plate 10 adopts a convex cover structure. The convex cover structure design makes it more convenient to snap and fix the cover plate 10.

[0030] The cover plate 10 is fixedly connected to the upper surface of the square storage shell 7 by bolts 11. Two bolts 11 are distributed on the left and right sides to fix the cover plate 10; this makes it easy to lock and fix the cover plate 10, and the bolts 11 are firmly fixed; it is easy to disassemble and assemble.

[0031] The variable diameter gas collection hood 3 is fixed around the laser cutting head 2. The outer surface of the upper end of the laser cutting head 2 is provided with external threads. The inner surface of the variable diameter gas collection hood 3 is connected to the outer surface of the upper end of the laser cutting head 2 by threads. The upper surface of the variable diameter gas collection hood 3 is covered with a rubber layer to increase friction during installation and to tighten securely after twisting installation.

[0032] In use, a variable diameter gas collecting hood 3 is fixedly connected to the upper outer surface of the laser cutting head 2. A triangular ring shell 4 is provided on the inner surface of the variable diameter gas collecting hood 3. An air intake 5 is opened on the lower surface of the triangular ring shell 4. The air intake 5 adopts a strip-shaped opening structure and is evenly distributed on the lower surface of the triangular ring shell 4. An air intake pipe 6 is fixedly connected to the inner surface of the outer end of the variable diameter gas collecting hood 3. The air intake pipe 6 communicates with the triangular ring shell 4. A square storage shell 7 is provided at the outer end of the air intake pipe 6. A turbine fan 9 is fixedly connected to the outer end face of the air intake pipe 6. Activated carbon filter cotton blocks 8 (activated carbon) are filled on the inner surface of the square storage shell 7. The filter cotton uses aluminum honeycomb, plastic honeycomb, and paper honeycomb with through-hole structure as the carrier. Compared with traditional activated carbon filter mesh, it has better gas dynamic performance, low bulk density, large specific surface area, high adsorption efficiency, and low wind resistance coefficient. Its variable diameter gas collection hood 3 can surround the laser cutting head 2 for air intake and filtration. The built-in triangular ring shell 4 is equipped with air intake port 5. When in use, air is drawn in by the turbine fan 9. When air is inlet, it is drawn in through the air intake port and then through the air intake pipe 6. The flue gas enters the air intake pipe 6 through the air intake port 5. After being filtered by the activated carbon filter cotton block 8, it can be directly discharged. The adsorption and filtration are comprehensive and the air intake is comprehensive.

[0033] The cover plate 10 is fixedly connected to the upper surface of the square storage shell 7 by bolts 11. Two bolts 11 are distributed on the left and right sides to fix the cover plate 10. This makes it easy to lock and fix the cover plate 10, and the bolts 11 are firmly fixed. It is easy to disassemble and assemble. After removing the bolts 11, the cover plate 10 can be opened and the activated carbon filter cotton block 8 inside can be taken out for replacement. It is convenient to use.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A suction pipe device for a sheet metal laser cutting machine, comprising a body (1), characterized in that: A laser cutting head (2) is provided on the lower surface of the body (1). A variable diameter gas collection hood (3) is fixedly connected to the upper outer surface of the laser cutting head (2). A triangular ring shell (4) is provided on the inner surface of the variable diameter gas collection hood (3). An air intake (5) is opened on the lower surface of the triangular ring shell (4). The air intake (5) adopts a strip-shaped opening structure. The air intake (5) is evenly distributed on a ring of the lower surface of the triangular ring shell (4). An air intake pipe (6) is fixedly connected to the inner surface of the outer end of the variable diameter gas collection hood (3). The air intake pipe (6) communicates with the triangular ring shell (4). A square storage shell (7) is provided on the outer end of the air intake pipe (6). A turbine fan (9) is fixedly connected to the outer end face of the air intake pipe (6). Activated carbon filter cotton blocks (8) are filled on the inner surface of the square storage shell (7).

2. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The air inlet on one side of the turbine fan (9) is fixedly connected to the outer end face of the suction pipe (6).

3. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The activated carbon filter cotton block (8) is slidably placed on the inner surface of the square storage shell (7), and the thickness of the activated carbon filter cotton block (8) is not less than five centimeters.

4. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: A cover plate (10) is fixedly installed on the upper surface of the square storage shell (7), and the cover plate (10) adopts a convex cover structure.

5. The suction pipe device for a sheet metal laser cutting machine according to claim 4, characterized in that: The cover plate (10) is fixedly connected to the upper surface of the square storage shell (7) by bolts (11), with two bolts (11) on the left and right sides to fix the cover plate (10).

6. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The variable diameter gas collection hood (3) is fixed around the laser cutting head (2), and the upper outer surface of the laser cutting head (2) is provided with external threads. The inner surface of the variable diameter gas collection hood (3) is connected to the upper outer surface of the laser cutting head (2) by threads.

7. The suction pipe device for a sheet metal laser cutting machine according to claim 1, characterized in that: The upper surface of the variable diameter gas collection hood (3) is covered with a rubber layer.

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