Waste gas recovery mechanism of laser cutting machine

Abstract

The utility model discloses a waste gas recovery mechanism of a laser cutting machine, which belongs to the technical field of laser cutting machines and comprises a workbench, a cutting bin is mounted at the upper end of the workbench, a laser cutting gun is mounted in the cutting bin, a displacement mechanism is arranged above the cutting bin, and gas guide mechanisms are arranged in front of and behind the laser cutting gun. The waste gas recovery mechanism of the laser cutting machine is additionally provided with the gas guide mechanism and the displacement mechanism, the gas guide mechanism adopts a gas supply structure and a gas extraction structure to form a gas guide air duct, and the waste gas dredging speed and reliability of the mechanism are effectively improved; the displacement mechanism is of a rack rail displacement structure, an air exhaust structure of the air guide mechanism is installed at the front end of the displacement mechanism, and an air supply structure is installed at the rear end of the displacement mechanism, so that the air guide mechanism can be driven to conduct displacement operation as a whole, and when the laser cutting gun conducts displacement, the displacement mechanism drives the air guide mechanism to conduct displacement along with the laser cutting gun; and therefore, the laser waste gas at the laser cutting gun is guided away by the gas guide mechanism, and the waste gas dredging and recycling effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to an exhaust gas recovery mechanism of a laser cutting machine. Background Art

[0002] Laser cutting machine is a device that uses the high energy density of laser beam to cut materials. It generates a high-power density laser beam through a laser, focuses it on the surface of the workpiece, and quickly melts, vaporizes, ablates or reaches the ignition point of the irradiated material. At the same time, it uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the purpose of cutting the workpiece. Laser cutting machine has the characteristics of high precision, fast cutting speed, few cutting pattern restrictions, automatic typesetting to save materials, smooth incisions, and low processing costs. It is widely used in the cutting of metals, non-metallic plates and composite materials, and has gradually improved or replaced traditional cutting process equipment.

[0003] In combination with laser cutting machines in the prior art, it is found that during the laser cutting process, a mixed gas containing various pollutants is generated due to the interaction between the laser beam and the material being cut. These pollutants mainly include organic waste gas, metal waste gas, smoke and particulate matter, and volatile organic compounds (VOCs). Organic waste gas usually comes from cutting materials containing organic matter, such as plastics and chemical fibers. These materials decompose or burn under the heat of the laser, producing gases with a pungent odor. Some cutting machines use exhaust pipes to extract the exhaust gas, but the single exhaust structure has low efficiency and is prone to the situation where some exhaust gas is scattered, thereby polluting the working environment.

[0004] Based on this, the utility model designs an exhaust gas recovery mechanism for a laser cutting machine to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide an exhaust gas recovery mechanism for a laser cutting machine to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: an exhaust gas recovery mechanism of a laser cutting machine, comprising a workbench, a cutting chamber is installed on the upper end of the workbench, an electric control chamber is fixedly installed on the left end of the cutting chamber, a laser cutting gun is installed inside the cutting chamber, a displacement mechanism is provided above the cutting chamber, and air guide mechanisms are provided on both the front and rear sides of the laser cutting gun, the air guide mechanism comprises a fan body, a docking pipe, a dust bin, a bin door body, a filter screen, a baffle, an air intake pipe, An air intake pipe head, an air guide duct, an air guide bin, an air guide fan and an air outlet pipe head are provided in front of the laser cutting gun. An air intake pipe head is fixedly installed at the front end of the air intake pipe head. The upper end of the air intake pipe is fixedly connected to a dust bin. A baffle is hinged at the connection between the dust bin and the air intake pipe. A filter is installed at the upper end of the dust bin. A bin door body is hinged at the front end of the dust bin. A fan body is fixedly installed at the upper end of the dust bin. The rear end of the fan body is fixedly connected to a docking pipe. The transmission gear of the present invention is a gear which is connected with the transmission gear of the present invention to form a gear box, and the transmission gear of the present invention is a gear which is connected with the transmission gear of the present invention to form a gear box.

[0007] Optionally, the air inlet of the fan body is connected to the interior of the dust bin, and the two groups of air guide fans are installed inside the air guide bin.

[0008] Optionally, the first limiting slide rail is fixedly installed at the front end of the cutting chamber, and the first limiting slider is slidably connected to the first limiting slide rail.

[0009] Optionally, the second limiting slide rail is fixedly mounted on the rear end of the cutting chamber, and the second limiting slider is slidably connected to the second limiting slide rail.

[0010] Optionally, the connecting plate is fixedly mounted on the outer wall of the air guide compartment.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the utility model, an air guide mechanism is provided. The air guide mechanism adopts an air supply structure and an air extraction structure to form an air guide duct, which effectively improves the rate and reliability of the mechanism in dredging exhaust gas. The air supply structure adopts two sets of air guide fans and cooperates with the air guide duct to quickly extract the gas, so that the exhaust gas generated by the laser cutting gun is quickly guided into the exhaust structure. The exhaust structure adopts the negative pressure exhaust of the fan body, which can quickly receive the gas in the air supply structure and quickly extract the exhaust gas. The dust bin, bin door body, filter screen and barrier plate are also used to block particles and splashes, so as to achieve the effect of filtering particulate matter and recovering metal waste.

[0013] 2. In the present invention, a displacement mechanism is provided, which adopts a rack displacement structure. The front end of the displacement mechanism is equipped with an air extraction structure of an air guide mechanism, and the rear end is equipped with an air supply structure, which can drive the air guide mechanism as a whole to perform displacement operation. When the laser cutting gun is displaced, the displacement mechanism drives the air guide mechanism as a whole to displace along with the laser cutting gun, thereby ensuring that the air guide mechanism guides away the laser exhaust gas at the laser cutting gun, thereby achieving the effect of exhaust gas diversion and recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0015] Figure 2 This is a schematic structural diagram of the utility model when viewed from the front plane;

[0016] Figure 3 This is a schematic structural diagram of the three-dimensional rear view of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model from a three-dimensional top view;

[0018] Figure 5 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 1 ;

[0019] Figure 6 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 2 ;

[0020] Figure 7 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 3 ;

[0021] Figure 8 For this utility model Figure 5 A schematic diagram of the structure of the stereoscopic enlargement in the middle;

[0022] Figure 9 For this utility model Figure 6 Schematic diagram of the structure with three-dimensional enlargement of B in the middle.

[0023] In the figure: 1. Workbench; 2. Electric control chamber; 3. Cutting chamber; 4. Laser cutting gun; 5. Air guide mechanism; 501. Fan body; 502. Docking pipe; 503. Dust bin; 504. Chamber door; 505. Filter; 506. Blocking plate; 507. Air inlet duct; 508. Air inlet pipe head; 509. Air guide duct; 510. Air guide chamber; 511. Air guide fan; 512. Air outlet pipe head; 6. Displacement mechanism; 601. Transmission gear; 602. Driving motor; 603. Driving gear; 604. Connecting rod; 605. First limit slider; 606. First limit slide rail; 607. Mounting plate; 608. Connecting plate; 609. Second limit slider; 610. Second limit slide rail. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 9 In the embodiment of the present invention, a waste gas recovery mechanism of a laser cutting machine includes a workbench 1, a cutting chamber 3 is installed on the upper end of the workbench 1, an electric control chamber 2 is fixedly installed on the left end of the cutting chamber 3, a laser cutting gun 4 is installed inside the cutting chamber 3, a displacement mechanism 6 is provided above the cutting chamber 3, and air guide mechanisms 5 are provided on the front and back sides of the laser cutting gun 4. The air guide mechanism 5 includes a fan body 501, a docking pipe 502, a dust bin 503, a bin door body 504, a filter 505, a baffle 506, an air intake pipe 507, an air intake pipe head 508, an air guide pipe 509, an air guide chamber 510, an air guide fan 511 and an air outlet pipe head 512. An air intake pipe head 508 is provided in front of the laser cutting gun 4, and an air intake pipe 507 is fixedly installed on the front end of the air intake pipe head 508 The upper end of the air intake duct 507 is fixedly connected to the dust bin 503, and a baffle 506 is hinged at the connection between the dust bin 503 and the air intake duct 507. A filter screen 505 is installed at the upper end of the dust bin 503, and a bin door body 504 is hinged at the front end of the dust bin 503. The upper end of the dust bin 503 is fixedly installed with a fan body 501, and the rear end of the fan body 501 is fixedly connected to the docking duct 502. An air outlet pipe head 512 is provided at the rear of the laser cutting gun 4, and an air guide duct 509 is fixedly installed at the rear end of the air outlet pipe head 512. An air guide bin 510 is fixedly installed on the upper end of the air guide duct 509, and an air guide bin 510 is fixedly installed on the inside of the air guide bin 510. An air guide fan 511 is installed inside the air guide bin 510. The air inlet of the fan body 501 is connected to the inside of the dust bin 503, and two sets of air guide fans 511 are installed inside the air guide bin 510.

[0028] See also Figure 5 、 Figure 8 and Figure 9 Initially, the air guide mechanism 5 adopts an air supply structure and an air extraction structure. The air supply structure is an air guide pipe 509, an air guide bin 510, an air guide fan 511 and an air outlet pipe head 512. The air extraction structure is a fan body 501, a docking pipe 502, a dust bin 503, a bin door body 504, a filter screen 505, a baffle 506, an air intake pipe 507 and an air intake pipe head 508. When the air guide mechanism 5 is activated, the docking pipe 502 needs to be connected to the exhaust gas treatment process to ensure that the exhaust gas can be drained out. The air guide fan 511 and the fan body 50 are activated simultaneously. 1. Two sets of air guide fans 511 work, delivering high-speed airflow to the laser cutting gun 4 through the air guide duct 509 and the air outlet pipe head 512. At the same time, the fan body 501 extracts air, making the air inlet duct 507 negatively pressurized and drawing the air into the air inlet duct 507 through the air inlet pipe head 508. This receives the gas ejected from the air delivery structure and the exhaust gas from the laser cutting gun 4. The exhaust gas reaches the dust bin 503, passes through the filter 505 and the fan body 501, and enters the exhaust gas treatment process. Some metal scraps and particulate debris are blocked in the dust bin 503.

[0029] Among them, the air guide mechanism 5 adopts an air supply structure and an air extraction structure to form an air guide duct, which effectively improves the rate and reliability of exhaust gas diversion of this mechanism. The air supply structure adopts two sets of air guide fans 511 and cooperates with the air guide pipe 509 to quickly extract the gas, thereby quickly guiding the exhaust gas generated by the laser cutting gun 4 into the exhaust structure. The exhaust structure adopts a fan body 501 to extract the air under negative pressure, which can quickly receive the gas in the air supply structure and quickly extract the exhaust gas. It also adopts a dust bin 503, a bin door body 504, a filter 505 and a baffle 506 to block particles and splashes, thereby achieving the effect of filtering particulate matter and recovering metal waste.

[0030] The displacement mechanism 6 includes a transmission rack 601, a driving motor 602, a driving gear 603, a connecting rod 604, a first limiting slider 605, a first limiting slide 606, a mounting plate 607, a connecting plate 608, a second limiting slider 609 and a second limiting slide 610. The upper end of the cutting bin 3 is fixedly mounted with a transmission rack 601, a driving motor 602 is arranged above the transmission rack 601, a driving gear 603 is fixedly mounted on the transmission end of the driving motor 602, and the driving gear 603 is meshed with the transmission rack 601. A connecting rod 604 is fixedly mounted on the outer wall of the dust bin 503, and the lower end of the connecting rod 604 is fixedly mounted with the first limiting slider 605. A first limiting slide rail 606 is provided on the outside of the block 605, a mounting plate 607 is fixedly installed on the right end of the drive motor 602, a connecting plate 608 is fixedly installed on the rear end of the mounting plate 607, a second limiting slider 609 is fixedly installed on the outer wall of the air guide duct 509, a second limiting slide rail 610 is provided on the outer side of the second limiting slider 609, the first limiting slide rail 606 is fixedly installed at the front end of the cutting chamber 3, the first limiting slider 605 is slidably connected to the first limiting slide rail 606, the second limiting slide rail 610 is fixedly installed at the rear end of the cutting chamber 3, the second limiting slider 609 is slidably connected to the second limiting slide rail 610, and the connecting plate 608 is fixedly installed on the outer wall of the air guide chamber 510;

[0031] See also Figure 9 Before using the displacement mechanism 6, the drive motor 602 needs to be connected to the power supply and the control terminal. When the laser cutting gun 4 is displaced, the drive motor 602 in the displacement mechanism 6 starts working, and the drive motor 602 drives the drive gear 603 to rotate, thereby causing the drive motor 602 and the mounting plate 607 on the right end to move along the transmission rack 601 as a whole. The limiting structures of the first limiting slider 605 and the first limiting slide rail 606, the second limiting slider 609 and the second limiting slide rail 610 all ensure the stable displacement of the displacement mechanism 6 and the gas guide mechanism 5, which are adapted to the position of the laser cutting gun 4, thereby improving the stability and reliability of exhaust gas extraction;

[0032] Among them, the displacement mechanism 6 adopts a rack displacement structure. The front end of the displacement mechanism 6 is equipped with an exhaust structure of the air guide mechanism 5, and the rear end is equipped with an air supply structure, which can drive the air guide mechanism 5 to perform displacement operations as a whole. When the laser cutting gun 4 is displaced, the displacement mechanism 6 drives the air guide mechanism 5 as a whole to displace with the laser cutting gun 4, thereby ensuring that the air guide mechanism 5 guides away the laser exhaust gas at the laser cutting gun 4, thereby achieving the effect of exhaust gas diversion and recovery.

[0033] The working principle of the present invention is as follows: before starting the laser cutting operation, first ensure that all parts of the laser cutting machine are correctly installed and powered on, the drive motor 602 is powered on and connected to the control terminal, ready to respond to control instructions at any time, when the laser cutting gun 4 starts working and the laser beam cuts the material, exhaust gas and particulate matter will be generated, after the exhaust gas and particulate matter are generated, the exhaust gas is sucked from the laser cutting area into the air inlet duct 507 by the exhaust structure of the air guide mechanism 5 (including the fan body 501 through the negative pressure suction effect, the exhaust gas passes through the filter 505 after entering the dust bin 503, and further filters out smaller particulate matter; at the same time, the drive motor 602 is started, and the drive gear 603 is engaged with the transmission rack 601, driving the entire air guide mechanism 5 (including the air supply and exhaust structure) along the transmission gear The rail 601 is displaced to adapt to the position change of the laser cutting gun 4; the first limit slider 605 and the first limit slide rail 606 in the displacement mechanism 6, as well as the second limit slider 609 and the second limit slide rail 610, ensure the stability and reliability of the air guide mechanism 5 during the displacement process, so that it matches the position of the laser cutting gun 4; at the same time, the high-speed airflow generated by the air supply structure of the air guide mechanism 5 (including the air guide pipe 509, the air guide bin 510, the air guide fan 511 and the air outlet pipe head 512) is transported to the laser cutting gun 4 through the air guide pipe 509 and the air outlet pipe head 512, helping to quickly guide the exhaust gas to the exhaust structure; after the laser cutting operation is completed, the drive motor 602 stops working, the air guide mechanism 5 stops displacing, and the entire exhaust gas recovery mechanism enters standby state, waiting for the next operation.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas recovery mechanism for a laser cutting machine, comprising a workbench (1), a cutting chamber (3) mounted on the upper end of the workbench (1), an electric control chamber (2) fixedly mounted on the left end of the cutting chamber (3), and a laser cutting gun (4) mounted inside the cutting chamber (3), characterized in that: A displacement mechanism (6) is provided above the cutting chamber (3), and air guide mechanisms (5) are provided at both the front and rear sides of the laser cutting gun (4). The air guide mechanism (5) comprises a fan body (501), a docking pipe (502), a dust bin (503), a bin door body (504), a filter (505), a baffle (506), an air intake pipe (507), an air intake pipe head (508), an air guide pipe (509), an air guide chamber (510), an air guide fan (511), and an air outlet pipe head (512). An air intake pipe head (508) is provided in front of the laser cutting gun (4), and an air intake pipe (507) is fixedly installed at the front end of the air intake pipe head (508). The upper end of the dust bin (507) is fixedly connected to a dust bin (503), a baffle (506) is hingedly connected to the connection between the dust bin (503) and the air inlet duct (507), a filter (505) is installed at the upper end of the dust bin (503), a bin door (504) is hingedly connected to the front end of the dust bin (503), a fan body (501) is fixedly installed at the upper end of the dust bin (503), a docking duct (502) is fixedly connected to the rear end of the fan body (501), an air outlet pipe head (512) is provided at the rear of the laser cutting gun (4), an air guide duct (509) is fixedly installed at the rear end of the air outlet pipe head (512), and an upper end of the air guide duct (509) is fixedly installed. There is an air guide bin (510), an air guide fan (511) is installed inside the air guide bin (510), the displacement mechanism (6) includes a transmission rack (601), a drive motor (602), a drive gear (603), a connecting rod (604), a first limiting slider (605), a first limiting slide rail (606), a mounting plate (607), a connecting plate (608), a second limiting slider (609) and a second limiting slide rail (610), the upper end of the cutting bin (3) is fixedly installed with a transmission rack (601), a drive motor (602) is provided above the transmission rack (601), and a drive gear (603) is fixedly installed on the transmission end of the drive motor (602). The driving gear (603) and the transmission gear rail (601) are meshed with each other, a connecting rod (604) is fixedly installed on the outer wall of the dust bin (503), a first limiting slider (605) is fixedly installed on the lower end of the connecting rod (604), a first limiting slide rail (606) is provided on the outer side of the first limiting slider (605), a mounting plate (607) is fixedly installed on the right end of the driving motor (602), a connecting plate (608) is fixedly installed on the rear end of the mounting plate (607), a second limiting slider (609) is fixedly installed on the outer wall of the air guide duct (509), and a second limiting slide rail (610) is provided on the outer side of the second limiting slider (609).

2. The exhaust gas recovery mechanism of a laser cutting machine according to claim 1, characterized in that: The air inlet of the fan body (501) is connected to the interior of the dust bin (503), and the two groups of air guide fans (511) are installed inside the air guide bin (510).

3. The exhaust gas recovery mechanism of a laser cutting machine according to claim 1, characterized in that: The first limiting slide rail (606) is fixedly mounted on the front end of the cutting chamber (3), and the first limiting slider (605) is slidably connected to the first limiting slide rail (606).

4. The exhaust gas recovery mechanism of a laser cutting machine according to claim 1, characterized in that: The second limiting slide rail (610) is fixedly mounted on the rear end of the cutting chamber (3), and the second limiting slider (609) is slidably connected to the second limiting slide rail (610).

5. The exhaust gas recovery mechanism of a laser cutting machine according to claim 1, characterized in that: The connecting plate (608) is fixedly mounted on the outer wall of the air guide chamber (510).

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