Laser marking device for air conditioner panel

Abstract

The invention discloses a laser marking device for an air conditioner panel, and belongs to the technical field of laser marking. The device comprises a laser lens barrel, an aperture sealing group, a lens cleaning and blowing assembly and a lens scraping assembly, the laser lens barrel is sleeved with the aperture sealing assembly, the aperture sealing assembly comprises a fastening unit, a lifting unit and an aperture sealing unit which are detachably connected with the laser lens barrel, and the aperture sealing unit comprises an aperture frame and rotatable blades. The plurality of blades are respectively connected with the aperture frame body; two ends of the lifting unit are respectively connected with the fastening unit and the aperture frame body so as to drive the aperture frame body to move relative to the laser lens barrel; the lens cleaning and blowing assembly is arranged on the aperture frame body and can spray cleaning liquid or air flow relative to the lens of the laser lens barrel; the lens scraping assembly comprises a flexible scraping strip, and the flexible scraping strip is connected with the blade. The lens can be cleaned regularly, and the marking quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, and in particular to a laser marking device for an air conditioner panel. Background Art

[0002] Air conditioning switch panels are usually made of high-quality plastics. Commonly used plastic materials include polycarbonate, polypropylene, polyethylene or polyacrylonitrile, etc. They are wear-resistant, chemical-resistant, have excellent mechanical properties and weather resistance, and are easy to process and form. Air conditioning switch panels usually need to be marked during the manufacturing process. For marking technology, laser marking is a common and effective process. Laser marking can achieve the purpose of marking by producing permanent marks on the surface, and has the advantages of high precision and high clarity. In the manufacturing process of air conditioning products, some necessary markings can be added to the panel through laser marking technology, such as brand trademarks, model numbers, safety logos, etc. Laser marking can achieve efficient, accurate and durable marking without damaging the panel material.

[0003] However, when the air-conditioning switch panel is burned by the laser, some plastic particles will vaporize, float in the air, and adhere to the lens of the laser marking machine, causing the lens surface to become dirty. External dust and oil will also act on the lens, thus affecting the focus and efficiency of the laser beam, and may even cause failure of the laser system. Summary of the invention

[0004] In view of this, it is necessary to provide a laser marking device for an air conditioning panel to solve the problem that the lens of the existing laser marking machine is easily contaminated and affects the work quality.

[0005] The present invention provides a laser marking device for an air conditioner panel, comprising a laser lens barrel for marking the air conditioner panel, characterized in that it also includes:

[0006] An aperture sealing component is sleeved on the laser lens barrel, the aperture sealing component comprises a fastening unit, a lifting unit and an aperture sealing unit which are detachably connected to the laser lens barrel, the aperture sealing unit comprises an aperture frame and rotatable blades, a plurality of blades are respectively connected to the aperture frame to cover or open the lens of the laser lens barrel; two ends of the lifting unit are respectively connected to the fastening unit and the aperture frame to drive the aperture frame to move relative to the laser lens barrel;

[0007] A lens cleaning component is arranged on the aperture frame, and the cleaning component can spray cleaning liquid or airflow relative to the lens of the laser lens barrel;

[0008] The lens scraping assembly comprises a flexible scraping strip connected to the blade so as to scrape the lens in one direction when the blade shields the laser lens barrel.

[0009] Furthermore, the blades are arc-shaped, a plurality of the blades are arranged around the lens at equal distances, and the flexible scraping strips are arranged on the inner edges of the blades.

[0010] Furthermore, the aperture frame includes a fixed ring and a rotatable rotating ring, the fixed ring is coaxially arranged with the rotating ring, the blade is arranged between the fixed ring and the rotating ring, and the two ends of the blade are respectively movably connected with the fixed ring and the rotating ring; the blade has an expanded state and a contracted state, in the expanded state, the blade partially covers the opening of the fixed ring, and in the contracted state, the blade is contracted between the fixed ring and the rotating ring to squeeze the flexible scraping strip.

[0011] Furthermore, one end of the blade is hinged to the fixed ring, and the other end of the blade is slidably engaged with the rotating ring.

[0012] Furthermore, the aperture closure assembly also includes a driving unit, which includes a rotating driving member, which is connected to the fixed ring through a bracket, and a plurality of gear teeth are provided on the outer side of the movable ring. The rotating driving member meshes with the gear teeth through gears to drive the movable ring to rotate relative to the fixed ring.

[0013] Furthermore, the lifting unit includes a retractable linear drive component, both ends of which are respectively connected to the fastening unit and the fixing ring, and a plurality of the linear drives are equidistantly arranged around the laser lens barrel; the linear drive component has an extended state and a retracted state, in which the linear drive component is relatively extended and the fixing ring is spaced apart relative to the laser lens barrel, and in the retracted state, the linear drive component is relatively retracted and the end of the fixing ring abuts against the laser lens barrel.

[0014] Furthermore, the lens cleaning and blowing assembly includes a cleaning unit, and the cleaning unit includes a first nozzle for spraying cleaning liquid, the first nozzle is opened on a fixing ring, and a plurality of the first nozzles are equidistantly arranged around the laser lens barrel.

[0015] Furthermore, the lens cleaning assembly includes a blowing unit, and the blowing unit includes a second nozzle for spraying airflow, the second nozzle is opened on the fixing ring, and a plurality of the second nozzles are equidistantly arranged around the laser lens barrel.

[0016] Furthermore, the first nozzle and the second nozzle are both arranged to be inclined relative to the circumferential direction and the radial direction of the laser lens barrel to form a liquid vortex and a gas vortex.

[0017] Furthermore, the fastening unit includes a fastening ring and a screw mounted on the laser lens barrel, at least two of the screws are equidistantly arranged around the fastening ring, the screw is threadedly connected to the fastening ring, and the screw abuts against the laser lens barrel via the fastening ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) A laser marking device for an air conditioning panel of the present invention is provided with an aperture sealing component, which is integrally mounted on the laser lens barrel. The aperture sealing component includes a fastening unit, a lifting unit and an aperture sealing unit. The fastening unit is detachably connected to the laser lens barrel. The aperture sealing component can be assembled and disassembled from the laser lens barrel as needed, which is convenient for the maintenance and repair of the aperture sealing component. The aperture sealing unit includes an aperture frame and rotatable blades. A plurality of blades are respectively connected to the aperture frame. The plurality of blades can rotate synchronously to shield or open the lens of the laser lens barrel. The plurality of blades can be opened when the lens is working and protect the lens from external pollutants when the lens stops working. The two ends of the lifting unit are respectively connected to the fastening unit and the aperture frame. The lifting unit can drive the aperture frame relative to the laser lens barrel and abut against the laser lens barrel. One end of the aperture frame is opened and communicates with the lens. The other end of the aperture frame is closed by a plurality of blades to form a sealed space covering the lens, which protects the lens from external pollutants.

[0020] (2) A laser marking device for an air conditioning panel of the present invention is provided with a lens cleaning component, which is arranged on an aperture frame. The cleaning component can spray cleaning liquid or airflow relative to the lens of the laser lens barrel. The cleaning liquid or airflow can clean plastic particles or dust attached to the lens, thereby achieving the purpose of cleaning the lens and ensuring the marking quality of the lens.

[0021] (3) A laser marking device for an air conditioning panel of the present invention is provided with a lens scraping assembly, which includes a flexible scraping strip connected to a blade. The flexible scraping strip can pass through an aperture frame and come into contact with the lens. During the relative rotation of the blade to shield the lens, the blade can drive the flexible scraping strip to move unidirectionally relative to the lens. The flexible scraping strip scrapes the lens in only one direction, thereby avoiding wear on the lens surface due to cross scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 The structure diagram of the aperture sealing component and the lens scraping component in the present invention is shown in FIG. Figure 1 ;

[0025] Figure 3 The structure diagram of the aperture sealing component and the lens scraping component in the present invention is shown in FIG. Figure 2 ;

[0026] Figure 4 The structure diagram of the aperture sealing component and the lens scraping component in the present invention is shown in FIG. Figure 3 ;

[0027] Figure 5 It is a schematic diagram of the structure of the blade in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the fixing ring in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the first nozzle in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the laser lens barrel in the present invention.

[0031] In the figure, 100, laser marking machine; 110, laser lens barrel; 111, abutment block; 200, aperture closing assembly; 210, fastening unit; 211, fastening ring; 212, screw member; 220, lifting unit; 221, linear driving member; 230, aperture closing unit; 231, aperture frame; 231a, fixing ring; 231b, rotating ring; 232, blade; 233, elastic gasket; 240, driving unit; 241, rotating driving member; 300, lens cleaning assembly; 310, cleaning unit; 311, first nozzle; 312, liquid storage tank; 320, blowing unit; 321, second nozzle; 322, air pump; 400, lens scraping assembly; 410, flexible scraping strip; DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0033] A laser marking device for an air-conditioning panel in this embodiment relates to the field of laser marking technology. A component for cleaning the lens is arranged outside the laser lens barrel 110 to clean plastic particles and dust attached to the lens in a timely manner, thereby ensuring the normal operation of the lens and improving the marking quality of the relative air-conditioning panel.

[0034] See also Figures 1 to 8 In this embodiment, a laser marking device for an air conditioner panel includes a laser lens barrel 110, an aperture sealing component 200, a lens cleaning component 300, and a lens scraping component 400. The laser lens barrel 110 can mark the air conditioner panel. The aperture sealing component 200 can use blades 232 to cover or open the lens, and seal and protect the lens when necessary. The lens cleaning component 300 can clean the lens with gas or liquid. The lens scraping component 400 can scrape the lens in one direction by moving the blades 232 to clean the plastic particles and dust on the lens, thereby ensuring the marking quality of the lens.

[0035] The aperture sealing assembly 200 is integrally mounted on the laser lens barrel 110. The aperture sealing assembly 200 includes a fastening unit 210, a lifting unit 220 and an aperture sealing unit 230. The fastening unit 210 is detachably connected to the laser lens barrel 110. The aperture sealing assembly 200 can be assembled and disassembled from the laser lens barrel 110 as needed, which facilitates the maintenance and repair of the aperture sealing assembly 200.

[0036] The aperture sealing unit 230 includes an aperture frame 231 and rotatable blades 232. The multiple blades 232 are respectively connected to the aperture frame 231. The multiple blades 232 can rotate synchronously to cover or open the lens of the laser lens barrel 110. The blades 232 are opened when the lens is working, and are protected from external contaminants when the lens stops working.

[0037] The two ends of the lifting unit 220 are respectively connected to the fastening unit 210 and the aperture frame 231. The lifting unit 220 can drive the aperture frame 231 to be relative to the laser lens barrel 110 and abut against the laser lens barrel 110. One end of the aperture frame 231 is opened and connected to the lens, and the other end of the aperture frame 231 is closed by a plurality of blades 232, which can form a sealed space covering the lens to protect the lens from external contaminants.

[0038] The lens cleaning component 300 is arranged on the aperture frame 231. The cleaning component can spray cleaning liquid or airflow relative to the lens of the laser lens barrel 110. The cleaning liquid or airflow can clean the plastic particles or dust attached to the lens, thereby achieving the purpose of cleaning the lens and ensuring the marking quality of the lens.

[0039] The lens scraping assembly 400 includes a flexible scraping strip 410, which is connected to the blade 232. The flexible scraping strip 410 can pass through the aperture frame 231 and contact the lens. During the relative rotation of the blade 232 to cover the lens, the blade 232 can drive the flexible scraping strip 410 to move unidirectionally relative to the lens. The flexible scraping strip 410 only scrapes the lens in one direction, thereby avoiding wear on the lens surface caused by cross scraping.

[0040] During use, the blade 232 is first in the open position, and the lifting unit 220 drives the aperture frame 231 to abut against the laser lens barrel 110, and starts the lens cleaning assembly 300, which blows and sprays the lens in turn. The blade 232 rotates relatively and moves from the open position to the shielded position. The blade 232 drives the flexible scraping strip 410 to wipe the sprayed lens to remove the pollutants and water stains that are still attached. Next, the lifting unit 220 drives the aperture frame 231 and the laser lens barrel 110 to move away from each other, and the flexible scraping strip 410 is separated from the lens. The blade 232 rotates relatively and moves from the shielded position to the open position. The flexible scraping strip 410 is converged in the aperture frame 231, and the cleaning liquid in the flexible scraping strip 410 can be squeezed out.

[0041] In some embodiments, see Figure 3 and Figure 4 The blades 232 are arc-shaped and can be matched with the circular aperture frame 231, so as to facilitate the installation of the blades 232. Multiple blades 232 are arranged equidistantly around the lens, so that the flexible scraping strip 410 can evenly scrape the surface of the lens. Since the blades 232 are evenly distributed, the scraping strip can also evenly contact the lens surface at the inner edge position of each blade 232, ensuring that the cleaning operation does not deviate from any part, avoiding the concentration of pressure on a single scraping point, making the cleaning process more uniform, and being able to effectively remove particles attached to the lens surface, thereby achieving a better cleaning effect.

[0042] The curved blade 232 and the flexible scraping strip 410 cooperate with each other to fit the lens surface very accurately and scrape with less pressure. The curved blade 232 can fit the curved surface of the lens more closely, while the flexible scraping strip 410 can adapt to different curvatures and lens shapes, avoiding damage to the lens caused by excessive pressure.

[0043] The multiple blades 232 clean the lens at the same time, and each blade 232 only needs to cover a portion of the lens. The multiple blades 232 working together can greatly shorten the lens cleaning time and keep the laser marking machine 100 running continuously and efficiently.

[0044] In some embodiments, see Figures 2 to 4 The aperture frame 231 includes a fixed ring 231a and a rotatable rotating ring 231b, the fixed ring 231a and the rotating ring 231b are coaxially arranged, and the blade 232 is arranged between the fixed ring 231a and the rotating ring 231b. One end of the blade 232 is hinged to the fixed ring 231a, and the other end of the blade 232 is slidably engaged with the rotating ring 231b. During the rotation of the rotating ring 231b relative to the fixed ring 231a, one end of the blade 232 rotates relative to the hinge point of the fixed ring 231a, and the other end of the blade 232 moves along the slide groove on the rotating ring 231b, so that the blade 232 is converted between two states.

[0045] The blade 232 has an expanded state and a retracted state, and the expanded state and the retracted state of the blade 232 enable the aperture frame 231 to adjust the shielding degree of the lens according to actual needs. In the expanded state, the blade 232 partially shields the opening of the fixing ring 231a, which can effectively prevent plastic particles, smoke and other pollutants from directly contacting the lens during the laser marking process.

[0046] In the retracted state, the blades 232 converge and squeeze the flexible scraping strip 410, so as to perform precise one-way scraping on the lens. Due to the cooperation between the blades 232 and the scraping strip, the flexible scraping strip 410 can flexibly adapt to the curved surface of the lens, accurately remove particles attached to the lens, and keep the lens clean.

[0047] By switching between the expansion and contraction of the blades 232, the cleaning cycle and cleaning intensity can be precisely controlled. This allows the device to continue to operate efficiently for a long time without frequent human intervention or maintenance. In each cleaning cycle, the flexible scraping strip 410 can automatically and accurately clean the lens without human intervention. This not only improves the efficiency of cleaning, but also avoids excessive wear on the lens or cleaning device. The flexible design of the scraping strip ensures that the cleaning process does not cause damage to the lens surface, keeping the laser marking system running efficiently for a long time.

[0048] In some embodiments, see Figure 4 The aperture closure assembly 200 also includes a driving unit 240, which includes a rotating driving member 241. The rotating driving member 241 is specifically a servo motor. The rotating driving member 241 is connected to the fixed ring 231a through a bracket. A plurality of gear teeth are provided on the outer side of the movable ring. The rotating driving member 241 meshes with the gear teeth through gears. The rotating driving member 241 can drive the movable ring to rotate relative to the fixed ring 231a, thereby driving the plurality of blades 232 to rotate synchronously, so that the blades 232 are switched between two states.

[0049] With the help of the combination of the rotating drive member 241, gears and gear teeth, the movable ring can achieve smooth rotation and precise adjustment, so that the aperture closure assembly 200 can efficiently switch states (expand or retract) during operation, providing precise control for lens protection and cleaning.

[0050] The driving unit 240 automatically drives the movable ring to rotate by rotating the driving member 241 and the gear, thereby reducing the need for manual intervention. This automatic design can greatly improve the operating efficiency of the aperture sealing assembly 200 and reduce the dependence on operators.

[0051] In some embodiments, see Figure 2 and Figure 3The lifting unit 220 includes a retractable linear drive member 221, which is specifically a cylinder or an electric push rod. The two ends of the linear drive member 221 are respectively connected to the fastening unit 210 and the fixing ring 231a. A plurality of linear drives 221 are equidistantly arranged around the laser lens barrel 110. The linear drive member 221 can drive the fixing ring 231a to move relative to the laser lens, thereby changing the distance between the fixing ring 231a and the laser lens barrel 110.

[0052] The linear drive member 221 has an extended state and a retracted state. In the extended state, the linear drive member 221 is relatively extended, and the fixing ring 231a is spaced relative to the laser lens barrel 110. In the retracted state, the linear drive member 221 is relatively retracted, and the end of the fixing ring 231a abuts against the laser lens barrel 110.

[0053] Multiple linear drive members 221 are arranged equidistantly around the laser lens barrel 110, ensuring that the aperture frame 231 can be evenly stressed during the adjustment process, avoiding uneven movement or damage caused by excessive load on a single drive member. The telescopic action of each linear drive member 221 is performed synchronously, thereby improving the stability and durability of the overall structure.

[0054] It should be particularly noted that an elastic gasket 233 is provided at one end of the fixing ring 231a opposite to the laser lens barrel 110, and a slot is opened on the fixing ring 231a. The elastic gasket 233 is embedded in the slot of the fixing ring 231a. When the linear drive member 221 is in a retracted state, the elastic gasket 233 and the laser lens barrel 110 abut against each other.

[0055] The buffering effect of the elastic gasket 233 prevents excessive impact force from being generated when the fixing ring 231a and the laser lens barrel 110 come into contact, thereby reducing the impact of vibration on the equipment, especially in high-precision laser marking operations, avoiding the deviation of the lens or laser system caused by vibration, thereby maintaining the stability and accuracy of the system.

[0056] The sealing connection between the elastic gasket 233 and the laser lens barrel 110 can effectively prevent external contaminants from entering the laser system, keep the lens and optical components clean, avoid the influence of pollution on the laser beam, and ensure the accuracy of the marking effect. The sealing performance of the gasket is particularly important in a workplace with a complex or dusty environment.

[0057] In some embodiments, see Figure 6The lens cleaning assembly 300 includes a cleaning unit 310, and the cleaning unit 310 includes a first nozzle 311 for spraying cleaning liquid. The first nozzle 311 is opened on the fixing ring 231a. A plurality of first nozzles 311 are arranged equidistantly around the laser lens barrel 110, which can ensure that the cleaning liquid is sprayed evenly onto the lens barrel surface, providing a comprehensive and uniform cleaning effect. By using the nozzles distributed equidistantly, it is possible to avoid incomplete or missing cleaning of a certain part of the lens surface, thereby improving the cleaning efficiency.

[0058] The first nozzle 311 for spraying the cleaning liquid can effectively remove dirt on the surface of the lens, especially grease, dust or tiny plastic particles accumulated over a long period of time, thereby ensuring the optical performance of the lens.

[0059] By setting up multiple nozzles, the cleaning liquid can be sprayed through multiple nozzles at the same time, thereby covering the entire surface of the lens barrel in a shorter time, achieving fast and efficient cleaning operations and reducing cleaning time.

[0060] In a further embodiment, a first annular passage is opened in the fixing ring 231 a , and each first nozzle 311 is respectively connected to the first annular passage, and the first annular passage can simultaneously deliver pressurized cleaning liquid to each first nozzle 311 .

[0061] It should be noted that the cleaning unit 310 also includes a liquid storage tank 312, in which cleaning liquid is stored. The liquid storage tank 312 is fixedly connected to the laser marking machine 100. The liquid storage tank 312 is connected to the first annular passage through a pipeline. A water pump is provided on the pipeline to pressurize the cleaning liquid and enhance the cleaning ability of the cleaning liquid.

[0062] In some embodiments, see Figure 6 The lens cleaning assembly 300 includes a blowing unit 320, and the blowing unit 320 includes a second nozzle 321 for ejecting airflow, and the second nozzle 321 is opened on the fixing ring 231a. The second nozzle 321 ejects airflow evenly, which can effectively blow away pollutants such as floating dust, dust, and tiny particles on the surface of the lens, preventing these pollutants from accumulating and affecting the operation of the laser lens barrel 110.

[0063] The plurality of second nozzles 321 are arranged equidistantly around the laser lens barrel 110, and can simultaneously spray airflow from multiple directions, ensuring that the laser lens barrel 110 is cleaned without dead angles and preventing contaminants in a certain part from being missed. The uniform spraying of airflow ensures that the lens surface is cleaned more thoroughly and improves the accuracy of the entire lens cleaning process.

[0064] Compared with the spray of cleaning liquid, the spray of airflow avoids the problems of water residue, corrosion or splashing of cleaning liquid that may be caused by the cleaning liquid. The contaminants on the surface of the lens are blown away by the airflow without negatively affecting the optical system, which is suitable for precision equipment that needs to avoid liquid contact.

[0065] In a further embodiment, a second annular passage is opened in the fixing ring 231 a , and each second nozzle 321 is respectively connected to the second annular passage, and the second annular passage can simultaneously deliver pressurized gas to each second nozzle 321 .

[0066] It should be noted that the blowing unit 320 also includes an air pump 322, which is fixedly connected to the laser marking machine 100 and communicated with the second annular passage through a pipeline. The air pump 322 can deliver pressurized air to the second nozzle to enhance the cleaning ability of the air.

[0067] In a specific implementation process, the annular array formed by the second nozzles 321 can be arranged inside or outside the annular array formed by the first nozzles 311, and the two can be used in conjunction with each other to respectively spray cleaning liquid and jet cleaning on the lens.

[0068] In some embodiments, see Figure 7 The first nozzle 311 and the second nozzle 321 are both inclined relative to the circumferential and radial directions of the laser lens barrel 110. The first nozzle 311 and the second nozzle 321 are inclined relative to the circumferential direction of the laser lens barrel 110, so that the cleaning liquid and the airflow can be more effectively distributed on the surface of the laser lens barrel 110, forming a vortex of liquid and gas, thereby increasing the effective area of ​​the cleaning liquid and airflow and avoiding cleaning blind spots and dead corners.

[0069] The formation of vortex helps the cleaning liquid and airflow to cover the entire lens surface more evenly and enhances the cleaning effect on attached dirt. Compared with the traditional vertical spray method, vortex can help the liquid and airflow to penetrate into all parts of the lens more evenly, ensuring that no area is missed and comprehensively improving the cleaning effect.

[0070] When the cleaning liquid and the airflow are sprayed onto the lens at an angle relative to the circumference of the laser lens barrel 110, a flow vortex is formed, which enhances the dynamic effect of the cleaning liquid and the airflow. The vortex can produce a rotation effect on the surface of the lens barrel, improve the fluidity of the liquid and the gas, enhance the cleaning liquid's ability to capture and separate pollutants, and effectively peel off and remove surface dirt, grease and other substances.

[0071] As a further implementation, the first nozzle 311 and the second nozzle 321 are arranged to be inclined radially relative to the laser lens barrel 110, and the cleaning liquid and the airflow generate a radial component force, which can drive the pollutants on the lens to gather into a ball relative to the middle of the lens, thereby making it easier for the balled pollutants to fall under the action of gravity and detach from the lens, thereby improving the comprehensiveness of the cleaning process.

[0072] In some embodiments, see Figure 3The fastening unit 210 includes a fastening ring 211 and a screw 212. The fastening ring 211 is sleeved on the laser lens barrel 110. At least two screws 212 are equidistantly arranged around the fastening ring 211. The screws 212 are threadedly connected to the fastening ring 211, which can firmly fix the laser lens barrel 110 at a specified position to prevent the laser lens barrel 110 from loosening or shifting due to vibration or external force during use. The threaded connection provides a strong clamping effect to ensure the stability of the lens barrel during operation.

[0073] The provision of the screw 212 enables the fastening unit 210 to be adjusted when necessary, thereby providing higher adjustability. By rotating the screw 212, the distance between the fastening ring 211 and the laser lens barrel 110 can be accurately adjusted to ensure that the laser lens barrel 110 is in an ideal position.

[0074] The structural design of the screw 212 and the fastening ring 211 makes the installation and removal process very simple. The user can easily fix or remove the laser lens barrel 110 by rotating the screw 212 without using too many tools or complicated operations.

[0075] In a specific implementation process, the spiral member 212 can be directly a screw rod, and a screw hole adapted to the screw rod is provided on the fastening ring 211 .

[0076] In some embodiments, see Figure 8 A baffle or a slot is provided on the outer wall of the laser lens barrel 110, and the baffle or the slot can cooperate with the screw member 212, which can not only strengthen the connection strength between the screw member 212 and the laser lens barrel 110, but also position the angle of the fastening ring 211, which is convenient for the arrangement of pipelines and lines.

[0077] A working process of a laser marking device for an air conditioner panel: First, the blade 232 is relatively retracted to expose the working area of ​​the laser marking machine 100. After the laser marking machine 100 runs for a set period of time, some tiny plastic particles or dust may adhere to the lens of the laser lens barrel 110, thereby affecting the focusing and marking effect of the laser. First, the lifting unit 220 is started, so that the aperture frame 231 moves relative to the laser barrel and abuts against the end of the laser barrel. Then, the lens cleaning assembly 300 is started, and the contaminants attached to the lens surface can be removed by airflow (such as the blowing unit 320) or cleaning liquid spray (such as the cleaning unit 310). Next, the blade 232 rotates relatively and moves from the open position to the shielding position. The blade 232 drives the flexible scraping strip 410 to wipe the sprayed lens to remove the contaminants and water stains that are still attached. Next, the lifting unit 220 drives the aperture frame 231 and the laser lens barrel 110 to move away from each other, and the flexible scraping strip 410 is separated from the lens. The blades 232 rotate relatively and move from the shielding position to the open position, and the flexible scraping strip 410 is gathered in the aperture frame 231 , so that the cleaning liquid in the flexible scraping strip 410 can be squeezed out.

[0078] By repeating the above process intermittently, the lens can be cleaned cyclically to remove various contaminants on the lens, thereby ensuring that the laser marking machine 100 is always in good working condition.

[0079] A storage process of a laser marking device for an air conditioning panel: the blades 232 are relatively open to cover the entire lens, the lifting unit 220 drives the aperture frame 231 to move relative to the laser cylinder and abut against the end of the laser cylinder, one end of the aperture frame 231 is opened and connected to the lens, and the other end of the aperture frame 231 is closed by multiple blades 232, so as to form a sealed space covering the lens and protect the lens from external pollutants.

[0080] The laser marking machine 100 can be put into operation immediately after being shut down and stored according to the above steps, without manual cleaning and debugging.

[0081] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the present invention.

Claims

1. A laser marking device for an air conditioning panel, comprising a laser lens barrel for marking the air conditioning panel, characterized in that: Also includes: An aperture sealing component is sleeved on the laser lens barrel, the aperture sealing component comprises a fastening unit, a lifting unit and an aperture sealing unit which are detachably connected to the laser lens barrel, the aperture sealing unit comprises an aperture frame and rotatable blades, a plurality of blades are respectively connected to the aperture frame to cover or open the lens of the laser lens barrel; two ends of the lifting unit are respectively connected to the fastening unit and the aperture frame to drive the aperture frame to move relative to the laser lens barrel; A lens cleaning component is arranged on the aperture frame, and the cleaning component can spray cleaning liquid or airflow relative to the lens of the laser lens barrel; The lens scraping assembly comprises a flexible scraping strip connected to the blade so as to scrape the lens in one direction when the blade shields the laser lens barrel.

2. The laser marking device for an air conditioner panel according to claim 1, characterized in that: The blades are arc-shaped, a plurality of the blades are arranged around the lens at equal distances, and the flexible scraping strips are arranged on the inner edges of the blades.

3. The laser marking device for an air conditioner panel according to claim 2, characterized in that: The aperture frame includes a fixed ring and a rotatable rotating ring, the fixed ring is coaxially arranged with the rotating ring, the blade is arranged between the fixed ring and the rotating ring, and the two ends of the blade are movably connected with the fixed ring and the rotating ring respectively; the blade has an expanded state and a contracted state, in the expanded state, the blade partially covers the opening of the fixed ring, and in the contracted state, the blade is contracted between the fixed ring and the rotating ring to squeeze the flexible scraping strip.

4. The laser marking device for an air conditioner panel according to claim 3, characterized in that: One end of the blade is hinged to the fixed ring, and the other end of the blade is slidably engaged with the rotating ring.

5. The laser marking device for an air conditioner panel according to claim 4, characterized in that: The aperture closure assembly also includes a driving unit, which includes a rotating driving member. The rotating driving member is connected to the fixed ring through a bracket, and a plurality of gear teeth are provided on the outer side of the movable ring. The rotating driving member meshes with the gear teeth through gears to drive the movable ring to rotate relative to the fixed ring.

6. The laser marking device for an air conditioner panel according to claim 3, characterized in that: The lifting unit includes a retractable linear drive member, both ends of which are respectively connected to the fastening unit and the fixing ring, and a plurality of the linear drives are equidistantly arranged around the laser lens barrel; the linear drive member has an extended state and a retracted state, in which the linear drive member is relatively extended and the fixing ring is spaced relative to the laser lens barrel, and in the retracted state, the linear drive member is relatively retracted and the end of the fixing ring abuts against the laser lens barrel.

7. The laser marking device for an air conditioner panel according to claim 3, characterized in that: The lens cleaning assembly comprises a cleaning unit, and the cleaning unit comprises a first nozzle for spraying cleaning liquid, the first nozzle is opened on a fixing ring, and a plurality of the first nozzles are arranged equidistantly around the laser lens barrel.

8. The laser marking device for an air conditioner panel according to claim 7, characterized in that: The lens cleaning assembly comprises a blowing unit, and the blowing unit comprises a second nozzle for ejecting airflow, the second nozzle is opened on a fixing ring, and a plurality of the second nozzles are arranged equidistantly around the laser lens barrel.

9. The laser marking device for an air conditioner panel according to claim 8, characterized in that: The first nozzle and the second nozzle are both arranged to be inclined relative to the circumferential direction and the radial direction of the laser lens barrel to form a liquid vortex and a gas vortex.

10. The laser marking device for an air conditioner panel according to claim 1, characterized in that: The fastening unit comprises a fastening ring and a screw member sleeved on the laser lens barrel, at least two screw members are equidistantly arranged around the fastening ring, the screw member is threadedly connected to the fastening ring, and the screw member abuts against the laser lens barrel via the fastening ring.

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