Laser processing module and laser processing equipment

Abstract

The utility model provides a laser processing module and laser processing equipment. The laser processing module comprises a shell, a laser module and an atomizer. The laser module can emit laser through the laser output port to machine a workpiece, and the atomizer can enable a liquid fire extinguishing agent to form fire extinguishing water mist to be sprayed out through the mist outlet. If the workpiece catches fire in the laser machining process, the fire extinguishing water mist formed by the atomizer can be sprayed out towards the workpiece, so that the precise fire extinguishing effect is achieved. And moreover, when the fire extinguishing water mist extinguishes flames, not only is the temperature reduced, but also oxygen can be isolated after the liquid is evaporated, so that the fire extinguishing efficiency is effectively improved. Besides, compared with a traditional mode that inert gas is used for extinguishing flames, the laser processing module forms fire extinguishing water mist through the atomizer and the liquid fire extinguishing agent for fire extinguishing, the fire extinguishing cost is reduced, meanwhile, the problem that the inert gas fire extinguishing agent is unsafe in transportation and storage can be solved, and the safety of laser processing operation is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a laser processing module and laser processing equipment. Background Technology

[0002] In the field of laser processing, fire is a common problem when cutting or carving non-metallic flammable materials such as wood. The probability of fire is further increased when the processing pattern is complex or the processing parameters are set improperly.

[0003] In the event of a fire, at best it will produce thick smoke and release large amounts of harmful gases, endangering user health or damaging consumables. At worst, the fire may spread further, damaging machinery or even causing a major fire that results in serious loss of life and property.

[0004] Currently, inert gases such as carbon dioxide are commonly used to extinguish flames. However, inert gases often need to be stored in high-pressure tanks, which poses safety concerns during transportation and storage. Furthermore, fire extinguishing with inert gases requires filling the entire machine with the gas, which is not only costly but also fails to achieve precise fire suppression, affecting the normal and safe operation of laser processing. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that in the prior art, when a fire occurs during laser processing, inert gases such as carbon dioxide are usually used to extinguish the flame. However, inert gases often need to be stored in high-pressure gas cylinders, which poses problems of unsafe transportation and storage, and the cost of use is high. Furthermore, it cannot achieve the effect of precise fire extinguishing, thus affecting the normal and safe conduct of laser processing operations.

[0006] To solve the above-mentioned technical problems, this utility model provides a laser processing module, which includes:

[0007] The outer casing includes a main body and a laser output port disposed at the end of the main body, the laser output port communicating with the interior of the main body; a mist outlet is provided on the end face of the main body where the laser output port is located, the mist outlet being arranged on one side of the laser output port;

[0008] A laser module is disposed inside the main body of the housing. The laser module is capable of emitting laser light to process workpieces. The laser light emitted by the laser module can be emitted out through the laser output port.

[0009] Atomizer is disposed inside the main body of the shell and corresponding to the mist outlet. The atomizer can atomize the liquid fire extinguishing agent in the flow channel or the liquid fire extinguishing agent in the atomizer, so that the liquid fire extinguishing agent forms a fire extinguishing water mist and is sprayed out from the mist outlet.

[0010] In some embodiments of this application, the atomizer includes a piezoelectric ceramic sheet and a microporous metal sheet attached to the surface of the piezoelectric ceramic sheet. The surface of the microporous metal sheet is used to contact the liquid extinguishing agent. The piezoelectric ceramic sheet is electrically conductive and vibrates, and the microporous metal sheet follows the piezoelectric ceramic sheet to atomize the liquid extinguishing agent into extinguishing water mist.

[0011] In some embodiments of this application, the piezoelectric ceramic sheet is annular and has a through hole; the microporous metal sheet has a liquid inlet surface and a mist outlet surface on opposite sides, and the microporous metal sheet has a plurality of atomizing holes that penetrate the liquid inlet surface and the mist outlet surface; the liquid inlet surface is used to contact the liquid extinguishing agent, and the mist outlet surface faces the mist outlet.

[0012] In some embodiments of this application, the atomizer further includes a damping ring, which is a flexible element and is disposed on the outer periphery of the piezoelectric ceramic sheet.

[0013] In some embodiments of this application, multiple mist outlets are provided, and the multiple mist outlets are arranged at intervals around the laser output port;

[0014] The atomizer is provided in multiple ways, and the multiple atomizers are arranged one-to-one at the multiple mist outlets.

[0015] In some embodiments of this application, the laser processing module further includes a liquid guiding channel disposed inside the housing body. The two ends of the liquid guiding channel are an inlet and an outlet, respectively. The inlet is used for the liquid extinguishing agent to flow in, and the outlet is connected to the surface of the atomizer to introduce the liquid extinguishing agent into the atomizer. The flow channel includes the liquid guiding channel.

[0016] In some embodiments of this application, the atomizer is provided in multiple forms;

[0017] The liquid guiding channel is provided in multiple ways, and each of the multiple liquid guiding channels is connected to a corresponding number of the multiple atomizers; or,

[0018] The atomizer is provided in multiple ways, and the liquid guiding channel is provided in one way, which connects the multiple atomizers.

[0019] In some embodiments of this application, the laser processing module further includes a controller, which is electrically connected to the laser module and the atomizer to control the laser module to turn on and emit laser light and to control the laser module to turn off and stop emitting laser light, and to control the atomizer to spray fire extinguishing water mist.

[0020] In some embodiments of this application, the laser processing module further includes a flame detection sensor disposed on the housing. The flame detection sensor is used to detect whether the workpiece is on fire and generate a flame detection signal. The flame detection sensor is electrically connected to the controller to transmit the flame detection signal to the controller. The controller controls the laser module to shut down and controls the atomizer to spray fire extinguishing water mist according to the flame detection signal.

[0021] This application also provides a laser processing device, including a frame and a laser processing module as described in any of the above embodiments, wherein the laser processing module is disposed on the frame.

[0022] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: In the laser processing module and laser processing equipment of this utility model, the laser processing module includes a shell, a laser module, and an atomizer. The laser module can emit laser light through the laser output port to process the workpiece, and the atomizer can make the liquid fire extinguishing agent form a fire extinguishing water mist, which is sprayed out from the mist outlet. When the workpiece being processed catches fire during laser processing, the fire extinguishing water mist formed by the atomizer can be sprayed towards the workpiece to achieve a precise fire extinguishing effect. Furthermore, when extinguishing flames, the fire extinguishing water mist not only reduces the temperature but also isolates oxygen after the liquid evaporates, effectively improving the fire extinguishing efficiency. In addition, compared with the traditional use of inert gas to extinguish flames, the laser processing module of this application uses an atomizer and liquid fire extinguishing agent to form a fire extinguishing water mist for fire extinguishing. This reduces fire extinguishing costs and avoids the safety problems of transporting and storing inert gas fire extinguishing agents, effectively ensuring the safety of laser processing operations. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the laser processing module of this utility model.

[0024] Figure 2 yes Figure 1 The diagram shows the usage status and internal structure of the laser processing module.

[0025] Figure 3 yes Figure 1 The diagram shows a partial structural diagram of the end of the laser processing module.

[0026] Figure 4 yes Figure 2 The diagram shows the structure of the atomizer in the laser processing module.

[0027] Figure 5 yes Figure 1 The diagram shows the electrical connections of the laser processing module.

[0028] Figure 6This is a schematic diagram of the structure of an embodiment of the laser processing equipment of this utility model.

[0029] The reference numerals in the attached drawings are explained as follows: 1000, laser processing equipment; 100, laser processing module; 10, outer shell; 11, shell body; 110, laser output port; 12, nozzle; 121, large end; 122, small end; 123, extension channel; 124, large port; 125, small port; 13, mist outlet; 14, mounting slot; 20, laser module; 30, atomizer; 31, piezoelectric ceramic sheet; 311, through hole; 32, microporous metal sheet; 33, first electrode; 34, second electrode; 35, shock absorber ring; 40, connecting plate; 50, liquid guiding channel; 60, controller; 70, flame detection sensor; 200, frame; 300, track; 2000, workpiece. Detailed Implementation

[0030] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0031] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] See Figure 1 and Figure 2 One embodiment of this application provides a laser processing module 100, which includes a housing 10, a laser module 20, and an atomizer 30.

[0034] The outer casing 10 includes a main body 11 and a laser output port 110 located at the end of the main body 11, which communicates with the interior of the main body 11. A mist outlet 13 is provided on the end face of the main body 11 where the laser output port 110 is located, situated to one side of the laser output port 110. A laser module 20 is located inside the main body 11 and is capable of emitting laser light to process the workpiece 2000. The laser light emitted by the laser module 20 is emitted through the laser output port 110. An atomizer 30 is located inside the main body 11 and corresponds to the mist outlet 13. The atomizer 30 atomizes liquid fire extinguishing agent input from outside the atomizer 30 or liquid fire extinguishing agent contained within the atomizer 30 to form a fire extinguishing water mist, which is then sprayed out through the mist outlet 13.

[0035] The laser processing module 100 of this application includes a housing 10, a laser module 20, and an atomizer 30. The laser module 20 emits laser light through the laser output port 110 to process the workpiece 2000, and the atomizer 30 causes the liquid fire extinguishing agent to form a fire-extinguishing water mist, which is then sprayed out from the mist outlet 13. When the workpiece 2000 catches fire during laser processing, the fire-extinguishing water mist formed by the atomizer 30 can be sprayed towards the workpiece 2000 to achieve a precise fire extinguishing effect. Furthermore, when extinguishing flames, the fire-extinguishing water mist not only lowers the temperature but also isolates oxygen after the liquid evaporates, effectively improving the fire extinguishing efficiency. In addition, compared with the traditional method of using inert gas to extinguish flames, the laser processing module 100 of this application uses the atomizer 30 and liquid fire extinguishing agent to form a fire-extinguishing water mist for fire extinguishing. This reduces fire extinguishing costs and avoids the safety issues of transporting and storing inert gas fire extinguishing agents, effectively ensuring the safety of laser processing operations.

[0036] In some embodiments of this application, the outer casing 10 includes a casing body 11 and a laser output port 110 disposed on the casing body 11. The casing body 11 may be made of metal and may be configured as a square columnar structure. The interior of the casing body 11 forms an accommodating space for mounting functional components in the laser processing module 100. In some examples, the casing body 11 may also be a cylindrical structure, a triangular prism structure, a box structure, etc.

[0037] The laser output port 110 is located at the end of the housing body 11, such as... Figure 1 and Figure 2 As shown, the laser processing module 100 is positioned in its operational state. The laser output port 110 is located at the bottom of the housing body 11 and is connected to the interior of the housing body 11. The laser generated by the laser module 20 can be directly emitted from the laser output port 110 and directed towards the workpiece to be processed.

[0038] The laser processing module 100 of this application can be used for cutting workpieces. The laser emitted from the laser output port 110 can locally vaporize or sublimate the workpiece to form a pattern. The laser processing module 100 can also be used for welding workpieces. The laser emitted from the laser output port 110 heats the workpiece to be welded, causing the material of the workpiece to melt. After cooling, the workpiece will form a weld. The laser processing module 100 can also be used for engraving workpieces. The laser emitted from the laser output port 110 can sublimate the surface of the workpiece or change its color (such as oxidation or carbonization), forming a pattern on it.

[0039] In some examples, the housing 10 also includes a nozzle 12 connected to a laser output port 110 on the housing body 11. The nozzle 12 is used to connect to an air pump to direct airflow. The air pump can be located inside or outside the housing body 11.

[0040] By combining the nozzle 12 with the air pump, the laser processing module 100 can direct the airflow to the workpiece to be processed. The airflow can be used to blow away the residue generated during the workpiece processing, which can assist the laser in enhancing the cutting and marking effect of the laser processing module 100, improving the cut quality and the clarity of the pattern.

[0041] The nozzle 12 can be a conical structure, with a large end 121 and a small end 122 at its two ends. The nozzle 12 has a through extension channel 123, which allows airflow and laser to pass through.

[0042] The extension channel 123 forms a large port 124 on the end face of the large end 121 of the laser output port 110, and forms a small port 125 on the end face of the small end 122 of the laser output port 110.

[0043] In this example, the large end 121 of the nozzle 12 is connected to the laser output port 110 of the housing body 11, and the interior of the housing body 11 is connected to the extension channel 123 via the large port 124. The laser emitted by the laser module 20 located inside the housing body 11 can be emitted from the small port 125 via the extension channel 123.

[0044] Combination Figure 3 As shown, in some examples, the laser output port 110 can be located on the central axis of the housing body 11. A mist outlet 13 is also provided on the end face of the housing body 11 where the laser output port 110 is located. Multiple mist outlets 13 are provided and are arranged at intervals along the circumference of the laser output port 110 on the outer periphery of the laser output port 110.

[0045] In this example, a connecting plate 40 can be provided on the outer periphery of the laser output port 110. The connecting plate 40 is annular and fixed on the outer periphery of the large end 121 of the laser output port 110. The laser output port 110 can be fixed to the end face of the housing body 11 by the connecting plate 40. The connecting plate 40 can be welded to the housing body 11 to ensure the stability of the connection between the laser output port 110 and the housing body 11.

[0046] In addition, in some examples, a mounting groove 14 can be recessed on the end face of the housing body 11. A laser output port 110 communicating with the interior of the housing body 11 is provided at the center of the mounting groove 14. An extension channel 123 communicates with the interior of the housing body 11 through the laser output port 110. A mist outlet 13 is provided at the mounting groove 14, and multiple mist outlets 13 are arranged at circumferential intervals along the laser output port 110.

[0047] See Figure 2 In some embodiments of this application, a laser module 20 is provided inside the shell body 11. The laser module 20 is capable of emitting laser to process the workpiece 2000, and the laser emitted by the laser module 20 can be emitted through the laser output port 110.

[0048] The laser processing module 100 emits laser light through the laser module 20, and can be used for laser engraving, laser marking, laser cutting, laser welding, etc., thereby realizing the laser processing of the workpiece 2000 to be processed, and completing operations such as engraving, marking, cutting, and welding.

[0049] In some examples, laser module 20 may include multiple laser units for generating multiple laser beams. The multiple laser units in laser module 20 may be multiple laser chips or a laser array integrating multiple laser chips.

[0050] The arrangement of multiple laser units can enhance the light output of the laser module 20, improve the working efficiency of the laser processing module 100, ensure the quality of laser processing operations, and optimize laser processing operations.

[0051] Combination Figure 2 and Figure 3 As shown, the laser processing module 100 of this application also includes an atomizer 30. The atomizer 30 is disposed inside the housing body 11 and corresponds to the mist outlet 13. The atomizer 30 can atomize the liquid fire extinguishing agent within the flow channel or within the atomizer 30, so that the liquid fire extinguishing agent forms a fire extinguishing water mist which is then sprayed out from the mist outlet 13. The flow channel can be located inside the laser processing module 100 or be an external flow channel connected to the laser processing module 100.

[0052] In the laser processing module 100 of this application, the laser module 20 can emit laser light from the laser output port 110 to process the workpiece 2000, and the atomizer 30 can atomize the liquid fire extinguishing agent into a fire-extinguishing water mist, which is then sprayed out from the mist outlet 13. When the workpiece 2000 catches fire during laser processing, the fire-extinguishing water mist formed by the atomizer 30 can be sprayed towards the workpiece 2000 to achieve a precise fire extinguishing effect. Furthermore, when extinguishing flames, the fire-extinguishing water mist not only lowers the temperature but also isolates oxygen after the liquid evaporates, effectively improving the fire extinguishing efficiency. In addition, compared with the traditional method of using inert gas to extinguish flames, the laser processing module 100 of this application uses the atomizer 30 and liquid fire extinguishing agent to extinguish fires, which reduces fire extinguishing costs and avoids the safety problems of transporting and storing inert gas fire extinguishing agents, effectively ensuring the safety of laser processing operations.

[0053] In this application, the liquid extinguishing agent can be water, halon extinguishing agent, hydrocarbon surfactant, foam extinguishing agent, water-based extinguishing agent, etc. Any liquid that can be used for fire extinguishing can be used for fire extinguishing in the laser processing module 100 of this application.

[0054] Compared to the inert gases used in traditional fire extinguishing methods, this application utilizes liquid extinguishing agents to form a water mist for fire suppression. This achieves rapid cooling and oxygen isolation, resulting in fast and efficient fire extinguishing. Furthermore, liquid extinguishing agents do not require a high-pressure environment for storage, and the dosage is precisely controllable. The water mist reduces water stains, making post-fire cleanup simpler and more reliable overall.

[0055] In some examples, multiple atomizers 30 can be set, with each atomizer 30 corresponding to a single mist outlet 13. Setting up multiple atomizers 30 can improve the mist output rate of the fire extinguishing water mist and expand the mist output range, enabling the fire extinguishing water mist to completely and effectively cover the burning area on the workpiece 2000, ensuring fire extinguishing efficiency and effect.

[0056] In other examples, only one atomizer 30 may be provided. The atomizer 30 can be connected to multiple mist outlets 13 through multiple mist outlet pipes, so that the fire extinguishing water mist generated by the atomizer 30 can be dispersed to multiple mist outlets 13 through multiple mist outlet pipes and finally sprayed out from multiple mist outlets 13.

[0057] like Figure 4 As shown, in some embodiments of this application, the atomizer 30 may include a piezoelectric ceramic sheet 31 and a microporous metal sheet 32. The microporous metal sheet 32 ​​is attached to the piezoelectric ceramic sheet 31.

[0058] The surface of the microporous metal sheet 32 ​​is designed to contact the liquid extinguishing agent. The piezoelectric ceramic sheet 31 vibrates due to electrical conductivity, and the microporous metal sheet 32 ​​follows the piezoelectric ceramic sheet 31 to atomize the liquid extinguishing agent into a water mist.

[0059] In some examples, the piezoelectric ceramic sheet 31 is annular and has a through hole 311. The atomizer 30 in this example also includes two electrodes, a first electrode 33 and a second electrode 34.

[0060] In this design, one end of both the first electrode 33 and the second electrode 34 is electrically connected to the internal circuitry of the piezoelectric ceramic sheet 31, while the other end of both electrodes 33 and 34 is connected to a power source. Through the circuitry connection between the first electrode 33 and the second electrode 34, the internal circuitry of the piezoelectric ceramic sheet 31 is activated. When subjected to a high-frequency sinusoidal electrical signal, the piezoelectric ceramic sheet 31 vibrates, thereby causing the microporous metal sheet 32 ​​to vibrate.

[0061] The microporous metal sheet 32 ​​is generally disc-shaped. A liquid inlet surface and a mist outlet surface are formed on opposite sides of the microporous metal sheet 32, respectively. That is, in the thickness direction of the microporous metal sheet 32, the liquid inlet surface and the mist outlet surface are spaced apart and correspond to each other.

[0062] The microporous metal sheet 32 ​​has several atomizing holes arranged at intervals. These atomizing holes are arranged through the thickness of the microporous metal sheet 32, meaning they simultaneously penetrate both the liquid inlet surface and the mist outlet surface. The microporous metal sheet 32 ​​is disposed on the piezoelectric ceramic sheet 31. The liquid inlet surface is used to contact the liquid extinguishing agent, allowing the liquid extinguishing agent to enter the atomizing holes through the liquid inlet surface. The mist outlet surface of the microporous metal sheet 32 ​​faces the mist outlet 13.

[0063] When the piezoelectric ceramic sheet 31 generates high-frequency vibration, the vibration energy of the piezoelectric ceramic sheet 31 can be transferred to the microporous metal sheet 32, so that the microporous metal sheet 32 ​​also vibrates at high frequency along with the piezoelectric ceramic sheet 31, thereby atomizing the liquid extinguishing agent in the atomizing hole into extinguishing water mist.

[0064] The fire extinguishing water mist is sprayed out from the mist outlet surface of the microporous metal sheet 32, and finally sprayed out from the mist outlet 13 through the through hole 311 of the piezoelectric ceramic sheet 31.

[0065] In some examples, the microporous metal sheet 32 ​​can be made of stainless steel. The stainless steel microporous metal sheet 32 ​​possesses good structural strength and rust resistance, enhancing the structural stability of the atomizer 30. Simultaneously, the stainless steel microporous metal sheet 32 ​​also exhibits sufficient fatigue resistance, preventing fatigue and breakage under high-frequency vibration, thus extending the service life of the atomizer 30.

[0066] In some examples, the atomizing holes on the microporous metal sheet 32 ​​can be configured as tapered holes, with the diameter of the atomizing holes gradually decreasing from the liquid inlet surface to the mist outlet surface.

[0067] This design allows the extinguishing water mist to be sprayed out of the microporous metal sheet 32 ​​at an accelerated speed, so that the extinguishing water mist can be sprayed in large quantities and at high speed toward the ignition point of the workpiece 2000, thereby effectively improving the extinguishing efficiency.

[0068] In some examples, the atomizer 30 may also include a damping ring 35. The damping ring 35 is a flexible component and may be made of flexible materials such as silicone or rubber.

[0069] The damping ring 35 is disposed on the outer periphery of the piezoelectric ceramic sheet 31. When the piezoelectric ceramic sheet 31 vibrates, the damping ring 35 can buffer the vibration between the piezoelectric ceramic sheet 31 and the shell body 11, reduce the vibration of the piezoelectric ceramic sheet 31 to the outside world, and ensure the stability of the shock absorber connection inside the shell body 11.

[0070] In some embodiments of this application, such as Figure 2 As shown, the laser processing module 100 also includes a liquid guiding channel 50, which is disposed inside the housing body 11. The liquid guiding channel 50 can be formed by a liquid guiding tube built into the housing body 11, or it can be formed by a channel inside the housing body 11. The two ends of the liquid guiding channel 50 are a liquid inlet and a liquid outlet, respectively. The liquid inlet is used to introduce liquid fire extinguishing agent, and the liquid outlet is connected to the liquid inlet surface of the microporous metal sheet 32. The flow channel includes the liquid guiding channel 50.

[0071] In some examples, a liquid storage tank can be installed inside the shell body 11 to store liquid extinguishing agent. The inlet of the liquid guiding channel 50 is connected to the liquid storage tank, and the liquid extinguishing agent in the liquid storage tank can flow through the liquid guiding channel 50 to the liquid inlet surface of the microporous metal sheet 32.

[0072] In this example, multiple liquid guiding channels 50 can be provided inside the shell body 11. The liquid outlets of the multiple liquid guiding channels 50 are corresponding one-to-one with the microporous metal plates 32 of the multiple atomizers 30, and the liquid inlets of the multiple liquid guiding channels 50 are all connected to the storage tank. Under the connection of the multiple liquid guiding channels 50, the liquid extinguishing agent in the storage tank can be diverted to the multiple atomizers 30. In addition, a single liquid guiding channel 50 can be provided inside the shell body 11, which can be connected to multiple atomizers 30.

[0073] In some examples, the liquid storage tank can also be located outside the housing body 11, that is, the liquid storage tank can be set independently of the housing 10. This arrangement can effectively reduce the weight of the laser processing module 100, making the laser processing module 100 more portable and flexible to use.

[0074] In this example, the end of the liquid guiding channel 50 with the liquid inlet can be extended to the outside of the shell body 11 and communicate with the liquid storage tank; alternatively, a connecting pipe can be provided between the shell body 11 and the liquid storage tank, with one end of the connecting pipe communicating with the liquid storage tank and the other end communicating with the liquid inlet of the liquid guiding channel 50 inside the shell body 11.

[0075] In other examples, when the liquid extinguishing agent used is water, it is not necessary to install a liquid storage tank, and the inlet of the liquid channel 50 can be connected to a tap water pipe.

[0076] In addition, liquid extinguishing agent can be placed in the atomizer 30. The liquid inlet surface of the microporous metal sheet 32 ​​is in contact with the liquid extinguishing agent, allowing the liquid extinguishing agent to enter the atomization hole through the liquid inlet surface. The piezoelectric ceramic sheet 31 generates high-frequency vibration, and the vibration energy of the piezoelectric ceramic sheet 31 can be transferred to the microporous metal sheet 32, causing the microporous metal sheet 32 ​​to also vibrate at a high frequency along with the piezoelectric ceramic sheet 31, thereby atomizing the liquid extinguishing agent in the atomization hole into a fire-extinguishing water mist.

[0077] like Figure 5 As shown, in some embodiments of this application, the laser processing module 100 may further include a controller 60 and a flame detection sensor 70, which may be mounted on the housing.

[0078] The controller 60 is electrically connected to the laser module 20 to control the laser module 20 to turn on and emit laser light, and to control the laser module 20 to turn off and stop emitting laser light. The controller 60 is also electrically connected to the atomizer 30 to control the atomizer 30 to spray fire extinguishing water mist.

[0079] The flame detection sensor 70 is used to detect whether the workpiece 2000 is on fire and generate a flame detection signal. The flame detection sensor 70 is electrically connected to the controller 60 to transmit the flame detection signal to the controller 60. The controller 60 controls the laser module 20 to shut down and controls the atomizer 30 to spray fire extinguishing water mist according to the flame detection signal.

[0080] In some examples, the flame detection sensor 70 can be a smoke detector, a heat detector, or a combination of smoke detectors and heat detectors to ensure that the flame detection sensor 70 can fully detect the fire situation of the workpiece 2000.

[0081] When the flame detection sensor 70 detects that the workpiece 2000 is on fire, the flame detection sensor 70 transmits the flame detection signal to the controller 60. The controller 60 controls the laser module 20 to shut down according to the flame detection signal and controls the atomizer 30 to spray fire extinguishing water mist, thereby achieving the purpose of timely fire extinguishing.

[0082] Furthermore, in some embodiments of this application, the atomizer 30 can be a high-pressure nozzle structure. The high-pressure nozzle structure can perform high-pressure atomization of the liquid extinguishing agent to form a fire-extinguishing water mist, which is then rapidly sprayed out from the mist outlet 13.

[0083] In other embodiments, the atomizer 30 may also be an ultrasonic atomizer for liquid fire extinguishing agents. Specifically, the atomizer 30 includes a power supply transformer and an ultrasonic transducer. The power supply transformer is connected to the ultrasonic transducer to provide the necessary electrical energy to the ultrasonic transducer. The ultrasonic transducer contacts the liquid fire extinguishing agent to atomize the liquid fire extinguishing agent into a fire extinguishing water mist, thereby causing the fire extinguishing water mist to be sprayed out from the mist outlet 13.

[0084] See Figure 6 An embodiment of this application also provides a laser processing apparatus 1000, which includes a frame 200 and a laser processing module 100. The structure of the laser processing module 100 has been described above and will not be repeated here. The laser processing module 100 is mounted on the frame 200.

[0085] In some examples, the laser processing equipment 1000 may include a track 300 mounted on a frame 200, in which a laser processing module 100 is movably mounted. The laser processing module 100 is movable relative to the frame 200, allowing the laser processing module 100 to adjust its relative position according to the workpiece processing requirements, thereby improving the efficiency and quality of laser processing.

[0086] The laser processing equipment 1000 of this application can be a laser engraving machine, which can use a high-energy-density laser beam to act on the surface of a material, and achieve the engraving effect through the interaction between the laser and the material (melting and vaporization, carbonization and discoloration, photochemical reactions, etc.). The laser processing equipment 1000 can also be a laser cutting machine, which can irradiate the surface of a material with a focused high-energy-density laser beam. After the material absorbs the energy of the laser, it rapidly heats up to its melting point and boiling point, causing the material to melt and vaporize, thereby achieving the cutting of the workpiece.

[0087] The laser processing module and equipment of this application include a housing, a laser module, and an atomizer. The laser module emits laser light from its output port to process the workpiece, and the atomizer causes the liquid fire extinguishing agent to form a fire-extinguishing water mist, which is then sprayed out from the mist outlet. When the workpiece catches fire during laser processing, the fire-extinguishing water mist formed by the atomizer is sprayed towards the workpiece to achieve precise fire extinguishing. Furthermore, when extinguishing flames, the fire-extinguishing water mist not only lowers the temperature but also isolates oxygen after the liquid evaporates, effectively improving the efficiency of fire extinguishing. In addition, compared with the traditional method of using inert gas to extinguish flames, the laser processing module of this application uses an atomizer and liquid fire extinguishing agent to form a fire-extinguishing water mist for fire extinguishing. This reduces fire extinguishing costs and avoids the safety issues associated with the transportation and storage of inert gas fire extinguishing agents, effectively ensuring the safety of laser processing operations.

[0088] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A laser processing module, characterized by, The application relates to a laser processing module. The laser processing module comprises a shell, a laser module and an atomizer. The shell comprises a shell body and a laser output port arranged at the end of the shell body, the laser output port being in communication with the interior of the shell body; the end surface of the shell body, where the laser output port is arranged, is provided with a mist outlet; the atomizer is arranged at the mist outlet. The laser module is arranged in the interior of the shell body and can emit laser to process a workpiece; the laser emitted by the laser module can be emitted through the laser output port.

2. The laser machining module of claim 1, wherein, The atomizer is arranged in the interior of the shell body and corresponds to the mist outlet; the atomizer can atomize liquid fire extinguishing agent in a flow channel or in the atomizer, so that the liquid fire extinguishing agent forms fire extinguishing water mist and is sprayed out of the mist outlet.

3. The laser machining module of claim 2, wherein, The atomizer comprises a piezoelectric ceramic sheet and a microporous metal sheet arranged on the surface of the piezoelectric ceramic sheet; the surface of the microporous metal sheet is used for contacting the liquid fire extinguishing agent; the piezoelectric ceramic sheet is electrically connected and vibrates; the microporous metal sheet follows the piezoelectric ceramic sheet to atomize the liquid fire extinguishing agent into fire extinguishing water mist.

4. The laser machining module of claim 2, wherein, The piezoelectric ceramic sheet is annular and is provided with a through hole; the opposite sides of the microporous metal sheet are respectively provided with a liquid inlet surface and a mist outlet surface; the microporous metal sheet is provided with a plurality of atomizing holes penetrating through the liquid inlet surface and the mist outlet surface; the liquid inlet surface is used for contacting the liquid fire extinguishing agent; and the mist outlet surface faces the mist outlet.

5. The laser machining module of claim 1, wherein, The atomizer further comprises a shock-absorbing ring, which is a flexible member and is arranged at the outer periphery of the piezoelectric ceramic sheet. The mist outlet is provided with a plurality of mist outlets which are arranged at intervals on the side of the laser output port.

6. The laser machining module of claim 1, wherein, The atomizer is provided with a plurality of atomizers which are arranged at the plurality of mist outlets one by one.

7. The laser machining module of claim 6, wherein, The laser processing module further comprises a liquid guide channel arranged in the interior of the shell body; the two ends of the liquid guide channel are respectively a liquid inlet and a liquid outlet; the liquid inlet is used for flowing in the liquid fire extinguishing agent; the liquid outlet is connected to the surface of the atomizer to guide the liquid fire extinguishing agent into the atomizer; and the flow channel comprises the liquid guide channel. The atomizer is provided with a plurality of atomizers. The liquid guide channel is provided with a plurality of liquid guide channels which are connected to the plurality of atomizers one by one; or 8. The laser processing module according to any one of claims 1 to 7, characterized in that, The atomizer is provided with a plurality of atomizers; the liquid guide channel is provided with one liquid guide channel; and the liquid guide channel communicates with the plurality of atomizers.

9. The laser machining module of claim 8, wherein, The laser processing module further comprises a controller which is electrically connected to the laser module and the atomizer to control the laser module to open and emit laser and to control the laser module to close and stop emitting laser and to control the atomizer to spray fire extinguishing water mist. The laser processing module further comprises a flame detection sensor arranged on the shell; the flame detection sensor is used for detecting whether a workpiece is on fire to form a flame detection signal; the flame detection sensor is electrically connected to the controller to transmit the flame detection signal to the controller; and the controller controls the laser module to close and controls the atomizer to spray fire extinguishing water mist according to the flame detection signal.

10. A laser processing apparatus characterized by comprising: A laser processing machine comprising a frame and a laser processing module as claimed in any one of claims 1 to 9, said laser processing module being arranged on said frame.

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