Self-service shared marking machine

Abstract

The application discloses a self-service shared marking machine, and relates to the field of marking machines, which comprises a workbench, a laser marking mechanism is fixed to the upper end of the workbench, an XY-axis driving element is fixedly installed on the upper end of the workbench, a mounting and fixing support is fixedly installed on the XY-axis driving element, a smoke dust collecting device is fixedly installed on the side end of the workbench and the mounting and fixing support, the smoke dust collecting device comprises a smoke dust collecting host, a connecting bellows, a hard supporting pipe and a smoke dust collecting cover, the hard supporting pipe is fixedly installed on the mounting and fixing support, the mounting and fixing support and the smoke dust collecting cover are carried by the XY-axis driving element, the smoke dust collecting cover can be driven to complete two-dimensional position adjustment in a horizontal plane, the second laser sensor is used for detecting and positioning the position of a workpiece, the smoke dust collecting cover can accurately follow the movement of a marking station, is always close to a smoke dust generating area, and the smoke dust collecting efficiency is greatly improved compared with a smoke dust collecting structure in a fixed position.

Description

Technical Field

[0001] This invention relates to the field of marking machines, and in particular to a self-service shared marking machine. Background Technology

[0002] Laser marking machines are processing equipment that uses a high-energy-density laser beam to irradiate the surface of a workpiece, causing the surface material to vaporize or change color, thereby forming a permanent mark. Compared with traditional marking methods such as screen printing, stamping, and chemical etching, laser marking has advantages such as high processing precision, wear and corrosion resistance of the marks, non-contact and no cutting stress, and a wide range of applicable materials. It can be widely used in product marking processing in many industries such as hardware accessories, electronic components, plastic products, and daily hardware, and is the mainstream marking processing equipment in industrial production and personalized customization fields.

[0003] With the increasing demand for personalized customization, the need for small-batch, on-demand marking services from individual users and small businesses is becoming increasingly prominent. Traditional industrial laser marking machines are mostly configured with fixed workstations, making it difficult to cover fragmented marking needs. Therefore, shared marking machines, characterized by unattended operation, QR code payment, and self-service operation, have broad market application prospects. However, in the actual operation of laser marking, metal workpieces are melted by the high temperature of the laser, generating fine metal dust. Plastic workpieces decompose under heat, releasing harmful fumes and irritating odors. These dust particles not only worsen the air quality in the operating space, and long-term exposure can easily damage the respiratory system and health of users, but the dispersed dust also easily accumulates on the optical lenses and transmission components of the equipment, accelerating equipment wear and reducing marking accuracy. Some laser marking machines equipped with dust collection structures cannot dynamically adjust the collection position according to the position of the workpiece being marked, resulting in low dust collection efficiency and difficulty in adapting to the diverse marking needs of self-service and shared scenarios. This has become a significant problem restricting the widespread application of self-service and shared marking equipment. Summary of the Invention

[0004] The main objective of this invention is to provide a self-service shared marking machine that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A self-service shared marking machine includes a worktable. A laser marking mechanism is fixed to the upper end of the worktable. An XY-axis drive component is also fixedly mounted on the upper end of the worktable. A mounting bracket is fixedly mounted on the XY-axis drive component. A dust collection device is fixedly mounted on the side of the worktable and on the mounting bracket. The dust collection device includes a dust collection main unit, a connecting corrugated pipe, a rigid support pipe, and a dust collection hood. The rigid support pipe is fixedly mounted on the mounting bracket. The connecting corrugated pipe connects the rigid support pipe to the dust collection main unit. The dust collection hood is fixedly mounted on the rigid support pipe away from the connecting corrugated pipe. At one end, a first laser sensor for checking whether the dust collection hood blocks the optical path of the laser marking mechanism is fixedly installed on the laser marking mechanism. A second laser sensor for detecting the position of the workpiece is fixedly installed on the mounting bracket. A touch screen is fixedly installed on the upper end of the worktable. A main control unit is embedded in the touch screen. The main control unit is electrically connected to a QR code payment module and a network module. The main control unit is also electrically connected to the laser marking mechanism, the XY axis drive, the dust collection device, the first laser sensor, and the second laser sensor. The network module is communicatively connected to an external cloud-based backend management platform.

[0006] Preferably, a workpiece placement platform is fixedly installed on the upper end of the workbench.

[0007] Preferably, the touch display screen is located behind the XY axis drive unit.

[0008] Preferably, the laser marking mechanism consists of a marking component driving mechanism and a laser marking component. The laser marking component is fixedly installed on the marking component driving mechanism, and the laser marking component is located above the workpiece placement stage, while the marking component driving mechanism is located behind the workpiece placement stage.

[0009] Preferably, the XY-axis drive is located on one side of the workpiece placement stage. The XY-axis drive is composed of a Y-axis linear module and an X-axis linear module. The Y-axis linear module is fixedly installed on the upper end of the workpiece placement stage along the front-back extension direction. The X-axis linear module is installed on the output slider of the Y-axis linear module along the left-right extension direction of the workpiece placement stage. It is used to drive the mounting bracket, rigid support tube, and dust collection hood to perform two-dimensional position adjustment in the horizontal plane.

[0010] Preferably, the mounting bracket consists of a mounting base plate, an L-shaped support plate, a fixing plate, and a bearing plate. The mounting base plate is fixedly mounted on the output slider of the X-axis linear module on the XY-axis drive component by bolts. The L-shaped support plate is fixedly mounted on the upper end of the mounting base plate by bolts. There are two fixing plates, both of which are fixedly mounted on the upper end of the L-shaped support plate by bolts. Each of the two fixing plates has a fixing hole, and the two fixing holes are coaxial. The bearing plate is fixedly mounted on the upper end of the two fixing plates by bolts.

[0011] Preferably, the dust collection unit on the dust collection device is fixedly installed on the side of the workbench by bolts. The connecting corrugated pipe, the rigid support pipe, and the dust collection unit are fixedly connected. The rigid support pipe and the dust collection hood are integrally formed. The dust collection unit is provided with a dust collection chamber, a filter element, and an exhaust fan inside. The connecting corrugated pipe is connected to the air inlet of the dust collection chamber. The filter element is placed between the dust collection chamber and the air inlet side of the exhaust fan. The air outlet of the exhaust fan is connected to the exhaust port of the dust collection unit.

[0012] Preferably, the rigid support tube is fixedly inserted into two fixing holes opened on the two fixing plates, and the rigid support tube and the fixing holes are interference fit. The dust collection hood is located on the side of the mounting bracket close to the workpiece placement table.

[0013] Preferably, the first laser sensor is fixedly mounted on one end of the laser marking assembly near the XY axis drive component via a bracket, and the second laser sensor is fixedly mounted on the upper end of the support plate via a bracket.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) This equipment integrates a touch screen, main control unit, QR code payment module and network module to build a complete unattended self-service operation system. It supports users to independently edit the marking content and start processing after scanning the code to pay. It can effectively cover the small batch instant marking needs of scattered users and small merchants, breaking through the application limitations of fixed workstations of traditional industrial marking machines. At the same time, the equipment operation and order data can be uploaded to the cloud back-end management platform through the network module, which is convenient for operators to carry out remote status monitoring, order statistics and equipment maintenance, greatly reducing the cost of human operation and improving the feasibility of commercialization and large-scale deployment of the equipment.

[0015] (2) The matching dust collection equipment generates negative pressure through the exhaust fan, which can draw the metal dust, harmful fumes and irritating odors generated during the laser marking process into the dust collection host through the dust collection hood, rigid support pipe and connecting corrugated pipe. The particulate matter and harmful components are then filtered and purified by the filter element before being discharged. This structure can effectively improve the air quality around the equipment, prevent users from inhaling harmful substances that could damage their respiratory tract and health, and reduce the deposition of drifting dust on optical lenses and transmission components, delay the aging and wear of the equipment, maintain the marking accuracy and operational stability for a long time, and is suitable for self-service use in public scenarios.

[0016] (3) With the help of the XY axis drive component, the mounting bracket and dust collection hood can be installed and fixed. The dust collection hood can be driven to complete two-dimensional position adjustment in the horizontal plane. With the second laser sensor to detect and position the workpiece, the dust collection hood can accurately follow the marking station and always stay close to the dust generation area. Compared with the fixed dust collection structure, the dust collection efficiency is greatly improved. It can adapt to the diverse processing needs of different marking workpieces at different positions. At the same time, the first laser sensor can verify the position of the dust collection hood to avoid it blocking the light path of the laser marking mechanism. While ensuring the dust collection effect, it also takes into account the safety and reliability of the marking operation, and is fully suitable for the operation and use of non-professional users in the self-service sharing scenario. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the workbench, laser marking mechanism, touch screen, dust collection device, and workpiece placement platform of the present invention. Figure 3 This is a schematic diagram of the XY-axis drive component, mounting bracket, and second laser sensor of the present invention. Figure 4 This is a schematic diagram of the dust collection device of the present invention; Figure 5 This is a schematic diagram of the module connection of the present invention; Figure 6 This is a flowchart of the process of the present invention.

[0018] In the diagram: 1. Workbench; 2. Laser marking mechanism; 3. Touch screen display; 4. XY axis drive; 5. Mounting bracket; 6. Dust collection device; 7. First laser sensor; 8. Second laser sensor; 9. Workpiece placement table; 10. Marking component drive mechanism; 11. Laser marking component; 12. Mounting connection base plate; 13. L-shaped support plate; 14. Fixing plate; 15. Fixing hole; 16. Bearing plate; 17. Dust collection host; 18. Connecting corrugated pipe; 19. Rigid support pipe; 20. Dust collection hood. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a self-service shared marking machine includes a workbench 1. A laser marking mechanism 2 is fixed to the upper end of the workbench 1. An XY axis drive component 4 is also fixedly installed on the upper end of the workbench 1. A mounting bracket 5 is fixedly installed on the XY axis drive component 4. A dust collection device 6 is fixedly installed on the side of the workbench 1 and on the mounting bracket 5. The dust collection device 6 includes a dust collection host 17, a connecting corrugated pipe 18, a rigid support pipe 19, and a dust collection hood 20. The rigid support pipe 19 is fixedly installed on the mounting bracket 5. The connecting corrugated pipe 18 connects the rigid support pipe 19 to the dust collection host 17. The dust collection hood 20 is fixedly installed on the rigid support pipe 17. At the end away from the connecting bellows 18, a first laser sensor 7 is fixedly installed on the laser marking mechanism 2 to check whether the dust collection hood 20 blocks the optical path of the laser marking mechanism 2. A second laser sensor 8 is fixedly installed on the mounting bracket 5 to detect the position of the workpiece. A touch screen display 3 is fixedly installed on the upper end of the worktable 1. The touch screen display 3 has a main control unit embedded inside. The main control unit is electrically connected to the QR code payment module and the network module. The main control unit is also electrically connected to the laser marking mechanism 2, the XY axis drive 4, the dust collection device 6, the first laser sensor 7, and the second laser sensor 8. The network module communicates with the external cloud-based backend management platform.

[0021] This equipment integrates a touch screen display, a main control unit, a QR code payment module, and a network module, constructing a complete unattended self-service operation system. It supports users to independently edit marking content, scan the code to pay, and start processing. It can effectively cover the small-batch, real-time marking needs of scattered users and small businesses, breaking through the application limitations of fixed workstations of traditional industrial marking machines. At the same time, equipment operation and order data can be synchronously uploaded to the cloud-based backend management platform through the network module, facilitating remote status monitoring, order statistics, and equipment maintenance for operators. This significantly reduces labor operating costs and improves the feasibility of commercialization and large-scale deployment of the equipment.

[0022] Furthermore, a workpiece placement stage 9 is fixedly installed on the upper end of the worktable 1. The touch screen display 3 is located behind the XY axis drive unit 4. The laser marking mechanism 2 consists of a marking component drive mechanism 10 and a laser marking component 11. The laser marking component 11 is fixedly installed on the marking component drive mechanism 10 and is located above the workpiece placement stage 9. The marking component drive mechanism 10 is located behind the workpiece placement stage 9. The XY axis drive unit 4 is located on one side of the workpiece placement stage 9. The XY axis drive unit 4 is composed of a Y-axis linear module and an X-axis linear module. The Y-axis linear module is fixedly installed on the upper end of the worktable 1 along the front-back extension direction of the workpiece placement stage 9. The X-axis linear module is installed on the output slider of the Y-axis linear module along the left-right extension direction of the workpiece placement stage 9. It is used to drive the mounting and fixing bracket 5 and the rigid support tube 19. The dust collection hood 20 is adjusted in two dimensions in the horizontal plane. The mounting bracket 5 consists of a mounting base plate 12, an L-shaped support plate 13, a fixing plate 14, and a bearing plate 16. The mounting base plate 12 is fixedly mounted on the output slider of the X-axis linear module on the XY-axis drive component 4 by bolts. The L-shaped support plate 13 is fixedly mounted on the upper end of the mounting base plate 12 by bolts. There are two fixing plates 14, both of which are fixedly mounted on the upper end of the L-shaped support plate 13 by bolts. Each of the two fixing plates 14 has a fixing hole 15, and the two fixing holes 15 are coaxial. The bearing plate 16 is fixedly mounted on the upper end of the two fixing plates 14 by bolts. The first laser sensor 7 is fixedly mounted on the end of the laser marking component 11 near the XY-axis drive component 4 by a bracket. The second laser sensor 8 is fixedly mounted on the upper end of the bearing plate 16 by a bracket.

[0023] With the help of the XY axis drive component 4, which is equipped with the mounting bracket 5 and the dust collection hood 20, the dust collection hood 20 can be driven to complete two-dimensional position adjustment in the horizontal plane. With the second laser sensor 8 detecting and positioning the workpiece position, the dust collection hood 20 can accurately follow the marking station and always stay close to the dust generation area. Compared with the fixed dust collection structure, the dust collection efficiency is greatly improved. It can adapt to the diverse processing needs of different marking workpieces at different positions. At the same time, the first laser sensor 7 can verify the position of the dust collection hood 20 to prevent it from blocking the optical path of the laser marking mechanism 2. While ensuring the dust collection effect, it also takes into account the safety and reliability of the marking operation, and is fully suitable for operation and use by non-professional users in self-service and shared scenarios.

[0024] Furthermore, the dust collection host 17 on the dust collection device 6 is fixedly installed on the side of the workbench 1 by bolts. The corrugated pipe 18 and the rigid support pipe 19 are fixedly connected to the dust collection host 17. The rigid support pipe 19 and the dust collection hood 20 are integrally formed. The dust collection host 17 is provided with a dust collection chamber, a filter element and an exhaust fan. The corrugated pipe 18 is connected to the air inlet of the dust collection chamber. The filter element is set between the dust collection chamber and the air inlet side of the exhaust fan. The air outlet of the exhaust fan is connected to the exhaust port of the dust collection host 17. The rigid support pipe 19 is fixedly inserted into the two fixing holes 15 opened on the two fixing plates 14, and the rigid support pipe 19 and the fixing holes 15 are interference fit. The dust collection hood 20 is located on the side of the mounting bracket 5 close to the workpiece placement table 9.

[0025] The accompanying dust collection device 6 generates negative pressure through an exhaust fan, which draws the metal dust, harmful fumes, and irritating odors generated during laser marking into the dust collection host 17 via the dust collection hood 20, rigid support pipe 19, and connecting corrugated pipe 18. The particulate matter and harmful components are then filtered and purified by the filter element before being discharged. This structure can effectively improve the air quality around the equipment, prevent users from inhaling harmful substances that could damage their respiratory tract and health, and reduce the deposition of drifting dust on optical lenses and transmission components, thus delaying equipment aging and wear, maintaining marking accuracy and operational stability over the long term, and making it suitable for self-service environments in public settings.

[0026] It should be noted that when using this self-service shared marking machine, the main control unit embedded in the touch screen 3 first initiates a self-test to confirm that the laser marking mechanism 2, XY axis drive 4, dust collection device 6, first laser sensor 7, and second laser sensor 8 are all operating normally. Then, the user places the workpiece to be processed on the workpiece placement platform 9 at the top of the worktable 1, edits the marking pattern and text content on the touch screen 3, and previews and confirms it. Subsequently, the QR code payment process is triggered. The user scans the payment QR code on the touch screen 3 to make payment. After the main control unit verifies successful payment through the QR code payment module, it sends a running command to the XY axis drive 4. The XY-axis drive unit 4 moves the mounting bracket 5, the rigid support tube 19, and the dust collection hood 20 towards the workpiece area. Simultaneously, the second laser sensor 8, fixed on the support plate 16, detects the workpiece's position in real time and feeds the position data back to the main control unit. Based on the detection results, the main control unit fine-tunes the X-axis and Y-axis output positions of the XY-axis drive unit 4, ensuring the dust collection hood 20 is precisely aligned with the dust-generating area of ​​the marking station. After the position adjustment, the first laser sensor 7, fixed to the side of the laser marking assembly 11, initiates optical path verification to check whether the dust collection hood 20 obstructs the marking optical path of the laser marking assembly 11. If a positional conflict is detected, the main control unit controls the XY-axis drive unit 4 to... The Y-axis drive unit 4 performs a secondary fine-tuning of the position of the dust collection hood 20 until the optical path is unobstructed. After verification, the main control unit starts the dust collection device 6. Subsequently, the marking component drive mechanism 10 of the laser marking mechanism 2 drives the laser marking component 11 to move to the corresponding position directly above the workpiece. Laser marking is performed on the workpiece surface according to the user-preset marking parameters. During this process, the exhaust fan inside the dust collection host 17 generates negative pressure, causing the metal dust and harmful fumes generated during the marking process to be drawn into the dust collection chamber of the dust collection host 17 through the dust collection hood 20, rigid support pipe 19, and connecting corrugated pipe 18. The particulate matter is then filtered by the internal filter element. After the harmful components are filtered and purified, they are discharged from the exhaust port. After the marking process is completed, the laser marking component 11 stops emitting light, and the marking component drive mechanism 10 drives the laser marking component 11 to reset to the initial position. The dust collection device 6 runs for a set time delay, and after sucking up the residual dust around the workstation, it is turned off. The XY axis drive component 4 synchronously drives the mounting bracket 5, rigid support tube 19 and dust collection hood 20 back to the initial standby position. At the same time, the main control unit synchronously uploads the order information, equipment operating status and processing parameters to the external cloud background management platform through the network module. The user can then take out the processed workpiece from the workpiece placement table 9, and the entire self-service marking operation process ends.

[0027] In addition, the touch screen 3 is equipped with existing editing software commonly used in the laser marking field. Users can select built-in materials such as text, graphics, and QR codes through touch screen operation, and it supports importing image files in common formats. Users can scale, rotate, and drag the marking content to adjust its position, and set processing parameters such as marking power, scanning speed, and fill mode. After editing, the marking effect can be previewed in real time. This editing software is a mature existing technology, and this solution does not improve the software itself. The delay time of the dust collection device 6 can be preset and adjusted by the main control unit, with a default setting of ten seconds to ensure that the residual dust around the workstation is completely sucked up after marking. The XY axis drive component 4 adopts a conventional linear module structure with a servo motor and a ball screw. The filter element adopts a composite structure of HEPA high-efficiency filter layer and activated carbon adsorption layer. Both the first laser sensor 7 and the second laser sensor 8 adopt diffuse reflection laser sensors to meet the requirements of position detection and optical path verification. The QR code payment module adopts the existing mature embedded QR code payment unit, which connects to the third-party payment platform through the network module to complete the payment status verification and feeds back the verification result to the main control unit in real time to trigger the subsequent marking process. The laser marking mechanism 2 adopts the existing mature fiber laser marking complete mechanism, which consists of a laser generator and a galvanometer scanning system to form a marking execution structure that is common in this field. This solution does not improve its internal structure and working principle, but only installs and uses it as a marking execution component.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A self-service shared marking machine, comprising a workbench (1), wherein a laser marking mechanism (2) is fixed to the upper end of the workbench (1), characterized in that: An XY axis drive unit (4) is fixedly installed on the upper end of the workbench (1). A mounting bracket (5) is fixedly installed on the XY axis drive unit (4). A dust collection device (6) is fixedly installed on the side end of the workbench (1) and on the mounting bracket (5). The dust collection device (6) includes a dust collection host (17), a connecting corrugated pipe (18), a rigid support pipe (19), and a dust collection hood (20). The rigid support pipe (19) is fixedly installed on the mounting bracket (5). The connecting corrugated pipe (18) connects the rigid support pipe (19) to the dust collection host (17). The dust collection hood (20) is fixedly installed on the end of the rigid support pipe (19) away from the connecting corrugated pipe (18). The laser marking mechanism (2) is fixedly equipped with a first laser sensor (7) for checking whether the dust collection hood (20) blocks the optical path of the laser marking mechanism (2). The mounting bracket (5) is fixedly equipped with a second laser sensor (8) for detecting the position of the workpiece. The upper end of the worktable (1) is fixedly equipped with a touch screen (3). The touch screen (3) is embedded with a main control unit. The main control unit is electrically connected to a QR code payment module and a network module. The main control unit is also electrically connected to the laser marking mechanism (2), the XY axis drive (4), the dust collection device (6), the first laser sensor (7), and the second laser sensor (8). The network module is connected to an external cloud-based backend management platform.

2. The self-service shared marking machine according to claim 1, characterized in that: A workpiece placement platform (9) is fixedly installed on the upper end of the workbench (1).

3. The self-service shared marking machine according to claim 2, characterized in that: The touch display screen (3) is located behind the XY axis drive unit (4).

4. The self-service shared marking machine according to claim 3, characterized in that: The laser marking mechanism (2) consists of a marking component driving mechanism (10) and a laser marking component (11). The laser marking component (11) is fixedly installed on the marking component driving mechanism (10), and the laser marking component (11) is located above the workpiece placement stage (9). The marking component driving mechanism (10) is located behind the workpiece placement stage (9).

5. A self-service shared marking machine according to claim 4, characterized in that: The XY axis drive (4) is located on one side of the workpiece placement stage (9). The XY axis drive (4) is composed of a Y-axis linear module and an X-axis linear module. The Y-axis linear module is fixedly installed on the upper end of the worktable (1) along the front-back extension direction of the workpiece placement stage (9). The X-axis linear module is installed on the output slider of the Y-axis linear module along the left-right extension direction of the workpiece placement stage (9). It is used to drive the mounting bracket (5), rigid support tube (19), and dust collection hood (20) to perform two-dimensional position adjustment in the horizontal plane.

6. A self-service shared marking machine according to claim 5, characterized in that: The mounting bracket (5) consists of a mounting base plate (12), an L-shaped support plate (13), a fixing plate (14), and a bearing plate (16). The mounting base plate (12) is fixedly mounted on the output slider of the X-axis linear module on the XY-axis drive component (4) by bolts. The L-shaped support plate (13) is fixedly mounted on the upper end of the mounting base plate (12) by bolts. There are two fixing plates (14), both of which are fixedly mounted on the upper end of the L-shaped support plate (13) by bolts. Each of the two fixing plates (14) has a fixing hole (15) and the two fixing holes (15) are coaxial. The bearing plate (16) is fixedly mounted on the upper end of the two fixing plates (14) by bolts.

7. A self-service shared marking machine according to claim 6, characterized in that: The dust collection host (17) on the dust collection device (6) is fixedly installed on the side of the workbench (1) by bolts. The connecting corrugated pipe (18) is fixedly connected to the rigid support pipe (19) and the dust collection host (17). The rigid support pipe (19) and the dust collection hood (20) are integrally formed. The dust collection host (17) is provided with a dust collection chamber, a filter element and an exhaust fan inside. The connecting corrugated pipe (18) is connected to the air inlet of the dust collection chamber. The filter element is set between the dust collection chamber and the air inlet side of the exhaust fan. The air outlet of the exhaust fan is connected to the exhaust port of the dust collection host (17).

8. A self-service shared marking machine according to claim 7, characterized in that: The rigid support tube (19) is fixedly inserted into two fixing holes (15) on two fixing plates (14), and the rigid support tube (19) and the fixing holes (15) are interference fit. The dust collection hood (20) is located on the side of the mounting bracket (5) close to the workpiece placement table (9).

9. A self-service shared marking machine according to claim 8, characterized in that: The first laser sensor (7) is fixedly mounted on one end of the laser marking assembly (11) near the XY axis drive (4) by a bracket, and the second laser sensor (8) is fixedly mounted on the upper end of the support plate (16) by a bracket.

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