Laser marking equipment for packaging boxes with a printing smoke collection structure

Abstract

The present invention relates to the field of laser marking, and specifically to a laser marking device for packaging boxes with a printing smoke collection structure, comprising a device main body, an inner cavity of the device main body is provided with a workbench; a plurality of laser marking devices are provided on the workbench, a first conveyor belt is provided on the top of the workbench, and a discharging device is detachably installed on the other end of the workbench; the present invention uses a workbench and a double conveyor belt to automatically transmit packaging boxes, and is matched with a blocking rod and a centralized control device to solve the problems of frequent manual intervention, unstable transmission, and low production efficiency in the prior art; through the three-level linkage of an air intake component, an electrostatic adsorption box, and an auxiliary suction component, a closed-loop smoke treatment system is formed by utilizing air pressure balance, electrostatic adsorption, and eddy current enhancement, and combined with a multi-layer filter plate for deep purification, to solve the problems of incomplete smoke treatment, poor working environment, and harmful smoke threatening the health of operators in the prior art.

Description

Technical Field

[0001] The invention relates to the field of laser marking, in particular to a laser marking device for a packaging box with a printing smoke and dust collection structure. Background Art

[0002] The laser marking machine with application number CN202210740321.X includes a main body, a base, and a control button. The main body is placed above the base. The longitudinal section of the base is rectangular. The surface of the main body is fixedly connected to the control button. The cross section of the control button is disc-shaped. The control button is located above the base. The surface of the main body is fixedly connected to a guide rod. The cross section of the guide rod is long and strip-shaped. The guide rod is located above the base. The inner surface of the guide rod is slidably connected to an adjuster. The longitudinal section of the adjuster is long and strip-shaped. The adjuster is located above the base. A vent is opened on the surface of the main body, and the vent is located above the base. By setting the adjustment device, the laser marking machine can be effectively adjusted, which improves the adjustability of the laser marking machine, improves the practicality of the laser marking machine, improves the auxiliary function of the laser marking machine, improves the convenience of laser marking machine processing, reduces the labor workload of workers, and saves the adjustment time of the laser marking machine.

[0003] In the prior art, including the aforementioned patents, plastic melts and vaporizes at high temperatures, generating a large amount of smoke particles. These particles contain many harmful substances, such as heavy metal particles and chemical gases, which are harmful to the human respiratory tract. The equipment has many deficiencies in production efficiency, smoke treatment, and equipment maintenance. The smoke collection quality is poor, and smoke overflow occurs when the smoke volume is large. This leads to a harsh working environment and long-term exposure of operators to harmful smoke and dust, posing a health threat.

[0004] Therefore, it is necessary to invent a laser marking device for packaging boxes with a printing smoke collection structure to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser marking device for packaging boxes with a printing smoke collection structure, which automatically transmits packaging boxes through a workbench and a double conveyor belt, and is equipped with a material blocking rod and a centralized control device to solve the problems of frequent manual intervention, unstable transmission, and low production efficiency in the prior art; through the three-level linkage of the air intake component, the electrostatic adsorption box and the auxiliary suction component, a closed-loop smoke treatment system is formed by utilizing air pressure balance, electrostatic adsorption and eddy current enhancement, and combined with multi-layer filter plates for deep purification, to solve the problems of incomplete smoke treatment, poor working environment, and harmful smoke threatening the health of operators in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A laser marking device for packaging boxes with a printing smoke dust collection structure includes a device body, an inner cavity of the device body is provided with a workbench; a plurality of laser marking devices are provided on the workbench, a first conveyor belt is provided at the top of the workbench, and a discharging device is detachably installed at the other end of the workbench; a smoke collection box is provided at the top of the device body, a feed port is provided on one side of the smoke collection box, a plurality of air intake components are provided on the outer side wall of the smoke collection box, an electrostatic adsorption box is installed at the top of the smoke collection box, a mounting frame is detachably provided in the inner cavity of the electrostatic adsorption box, a rectangular opening is provided in the center of the mounting frame, an electrostatic adsorption plate is provided in the inner cavity of the rectangular opening, and the electrostatic adsorption plate It is electrically connected to the control device through a wire, and multiple auxiliary air suction components are provided on both sides of the top of the electrostatic adsorption box; the auxiliary air suction component includes a secondary air suction pipe, which is plugged into the side wall of the electrostatic adsorption box, and a Venturi groove is opened in the inner cavity of the secondary air suction pipe, and a plurality of spiral guide vanes arranged in a ring are provided on the inner wall of the Venturi groove, and a plurality of air inlet holes are connected on the side wall of the Venturi groove, and the multiple air inlet holes are arranged in a ring at the bottom end of the secondary air suction pipe; a filter box is provided at the top of the electrostatic adsorption box, and the top center of the filter box is connected to the main air suction pipe, and the main air suction pipe and the multiple auxiliary air suction components are connected to the air suction end of the suction equipment through a hose.

[0008] As a preferred solution of the present invention, a control device is provided on one side of the discharging device, and the control device is electrically connected to the workbench, the laser marking device and the discharging device through wires; a second conveyor belt is provided on the discharging device, and the tail end of the second conveyor belt is connected to the head end of the first conveyor belt, and two material blocking rods are provided on the top of the discharging device.

[0009] As a preferred solution of the present invention, the air intake assembly includes an air intake pipe, which is arranged on the side wall of the smoke and dust collection box, one side of the air intake pipe is connected to a connecting pipe, the other end of the connecting pipe extends to the inner cavity of the smoke and dust collection box, and the inner cavity of the air intake pipe is provided with a plurality of blocking assemblies; the blocking assembly includes a rotating rod, both ends of the rotating rod are rotatably connected to the side wall of the inner cavity of the air intake pipe, a blocking plate is provided on the outer side wall of the rotating rod, a card slot is provided on one side of the blocking plate, and a counterweight is provided on the other side of the blocking plate.

[0010] As a preferred solution of the present invention, drive motors are provided on both sides of the electrostatic adsorption box, and the power output ends of the two drive motors are provided with drive gears. The inner cavity of the drive gear is threadedly connected to a threaded rod, and the other end of the threaded rod is connected to a fixed block. A conductive sheet is provided on one side of the fixed block, and two metal rods are provided on the side wall of the fixed block. The other end of the metal rod is electrically connected to the control device through a wire.

[0011] As a preferred solution of the present invention, the bottom end of the mounting bracket is arranged in an arc shape, grooves for plugging into the fixed block are provided on both sides of the mounting bracket, and the side walls of the mounting bracket are detachably connected to the side walls of the inner cavity of the electrostatic adsorption box.

[0012] As a preferred solution of the present invention, the cross-section of the electrostatic adsorption plate is configured to be corrugated.

[0013] As a preferred solution of the present invention, the inner cavity of the filter box is provided with multiple layers of filter plates.

[0014] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0015] 1. The air intake assembly, electrostatic adsorption box, and auxiliary air intake assembly form a closed-loop system for smoke treatment through three-stage linkage: air pressure balance, electrostatic adsorption, and vortex enhancement. After the air intake equipment is started, the air intake assembly opens the air intake channel to balance the air pressure in the box to prevent smoke leakage. The corrugated adsorption net in the electrostatic adsorption box is energized to generate an electrostatic field, which prolongs the smoke retention time and improves adsorption efficiency. The auxiliary air intake assembly accelerates the smoke flow rate through the Venturi groove, cooperates with the spiral guide vane to form a vortex, and uses the air intake hole to supply air in an annular manner, prompting the smoke to fully pass through the electrostatic adsorption plate in a spiral trajectory to achieve efficient adsorption. The synergistic effect of the three achieves an extremely high smoke particle capture rate. The dynamic air pressure balance design avoids the smoke escape problem caused by insufficient negative pressure in traditional air intake systems, building an efficient and stable industrial smoke treatment system, improving smoke absorption and preventing smoke overflow, effectively collecting and treating smoke generated by laser marking, removing tiny particles and impurities, ensuring that the exhaust gas meets the standards, purifying the working environment, reducing the risk of operators inhaling harmful smoke and dust, and protecting occupational health.

[0016] 2. The auxiliary suction component adopts a Venturi trough structure, combined with spiral guide vanes and annular air inlet holes. The Venturi trough causes the smoke to flow in a spiral shape while increasing its flow velocity and pressure. Compared with traditional pipes, the adsorption efficiency is greatly improved. The spiral guide vanes guide the smoke to form a vortex, and the annularly arranged air inlet holes achieve gas flow compensation, further strengthening the annular flow state of the smoke, effectively preventing smoke from overflowing from the air inlet pipe, and improving the overall smoke collection and treatment effect.

[0017] 3. The electrostatic adsorption box and the corrugated electrostatic adsorption plate are used to capture smoke particles. The electrostatic adsorption box can be easily maintained through a quickly detachable mounting bracket. The electrical connection between the drive motor and the conductive sheet generates a stable electrostatic field. The corrugated electrostatic adsorption plate extends the smoke retention path by increasing the surface area, allowing the particles to fully contact the charged adsorption surface in the spiral rising airflow. Combined with the electrostatic adsorption principle, an efficient particle retention rate is achieved, which reduces impurities entering the filter box, reduces the frequency of filter replacement and the risk of clogging in the filter box, extends the service life of the equipment, reduces the load on the back-end filtration system, and extends the filter replacement cycle. The modular structure greatly improves equipment maintenance efficiency, providing a sustainable air purification solution for industrial environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall internal structure of the present invention;

[0020] Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 3 The overall appearance structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 4 This is a schematic structural diagram of the device body and smoke collection box of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the electrostatic adsorption box of the present invention;

[0024] Figure 6 Schematic diagram of the structure of the electrostatic adsorption plate of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the air intake assembly of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the blocking component of the present invention;

[0027] Figure 9 This is a schematic structural diagram of the auxiliary air suction component of the present invention;

[0028] Figure 10 It is a schematic cross-sectional structural diagram of the filter box of the present invention.

[0029] Description of reference numerals:

[0030] 1. Equipment body; 2. Workbench; 3. Laser marking device; 4. Discharging device; 5. Smoke and dust collection box; 51. Air intake assembly; 511. Air intake duct; 512. Connecting duct; 513. Blocking assembly; 501. Rotating rod; 502. Blocking plate; 503. Counterweight; 6. Electrostatic adsorption box; 601. Drive motor; 602. Drive gear; 603. Threaded rod; 604. Fixed block; 61. Mounting bracket; 62. Electrostatic adsorption plate; 63. Auxiliary suction assembly; 631. Auxiliary suction duct; 632. Spiral guide vane; 633. Air intake hole; 7. Filter box; 8. Main suction duct. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figures 1-10 The laser marking device for packaging boxes with a printing smoke collection structure shown in the figure includes a device body 1, the inner cavity of the device body 1 is provided with a workbench 2; a plurality of laser marking devices 3 are provided on the workbench 2, a first conveyor belt is provided at the top of the workbench 2, and a discharging device 4 is detachably installed at the other end of the workbench 2; a smoke collection box 5 is provided at the top of the device body 1, a feed port is provided on one side of the smoke collection box 5, a plurality of air intake components 51 are provided on the outer wall of the smoke collection box 5, an electrostatic adsorption box 6 is installed at the top of the smoke collection box 5, and a detachable mounting bracket 61 is provided in the inner cavity of the electrostatic adsorption box 6, and the center of the mounting bracket 61 is provided. A rectangular opening is provided, and an electrostatic adsorption plate 62 is provided in the inner cavity of the rectangular opening. The electrostatic adsorption plate 62 is electrically connected to the control device through a wire. A plurality of auxiliary air suction components 63 are provided on both sides of the top of the electrostatic adsorption box 6; the auxiliary air suction component 63 includes an auxiliary air suction pipe 631, which is plugged into the side wall of the electrostatic adsorption box 6. A Venturi groove is provided in the inner cavity of the auxiliary air suction pipe 631, and a plurality of spiral guide vanes 632 arranged in an annular shape are provided on the inner side wall of the Venturi groove. A plurality of air inlet holes 633 are connected on the side wall of the Venturi groove, and the plurality of air inlet holes 633 are arranged in an annular shape at the bottom end of the auxiliary air suction pipe 631;

[0033] The auxiliary suction duct 631 utilizes a Venturi trough structure to accelerate the flow rate and increase the pressure of incoming smoke, resulting in higher adsorption efficiency compared to traditional ducts. Spiral guide vanes 632 guide the smoke into a vortex, improving its flow efficiency and adsorption. The air inlet 633 achieves annular gas flow compensation, further enhancing smoke adsorption capacity, effectively preventing smoke from overflowing the intake duct 511 and improving overall smoke collection efficiency. A filter box 7 is installed at the top of the electrostatic adsorption box 6. The center of the top of the filter box 7 connects to the main suction duct 8. The main suction duct 8 and the multiple auxiliary suction components 63 are connected to the suction end of the suction equipment via flexible hoses.

[0034] The main body 1 of the equipment serves as the overall framework, supporting all components and providing a stable foundation for operation. A workbench 2, in conjunction with the first conveyor belt, facilitates the placement and transport of packaging boxes. A laser marking device 3 enables precise marking of packaging boxes. A discharge device 4 and a second conveyor belt automatically discharge marked packaging boxes, improving production efficiency. A dust collection box 5, an electrostatic adsorption box 6, an auxiliary suction assembly 63, and a filter box 7 form an efficient dust collection system. The main suction duct 8, in conjunction with the suction equipment, sequentially collects, electrostatically adsorbs, assists in suction, and filters the smoke generated by the laser marking process, effectively purifying the work environment and protecting the health of operators.

[0035] Furthermore, a control device is provided on one side of the discharging device 4, and the control device is electrically connected to the workbench 2, the laser marking device 3 and the discharging device 4 through wires; a second conveyor belt is provided on the discharging device 4, and the tail end of the second conveyor belt is connected to the head end of the first conveyor belt, and two material blocking rods are provided on the top of the discharging device 4.

[0036] The control device is connected to the workbench 2, laser marking device 3, and discharge device 4 via wires, enabling centralized control of the equipment's operation and facilitating convenient operation. The second conveyor belt docks with the first conveyor belt, ensuring continuous transport of packages within the device. Two stoppers at the top of the discharge device 4 prevent the packages from shifting or falling during transport, ensuring stable transport and improving operational reliability.

[0037] Furthermore, the air intake assembly 51 includes an air intake pipe 511, which is arranged on the side wall of the smoke collection box 5, and one side of the air intake pipe 511 is connected to a connecting pipe 512, and the other end of the connecting pipe 512 extends to the inner cavity of the smoke collection box 5, and the inner cavity of the air intake pipe 511 is provided with multiple blocking assemblies 513; the blocking assembly 513 includes a rotating rod 501, and both ends of the rotating rod 501 are rotatably connected to the side wall of the inner cavity of the air intake pipe 511, and a blocking plate 502 is provided on the outer wall of the rotating rod 501, and a card slot is provided on one side of the blocking plate 502, and a counterweight block 503 is provided on the other side of the blocking plate 502.

[0038] The intake assembly 51, consisting of an intake duct 511 and a connecting duct 512, allows external air to enter the smoke collection box 5 during smoke absorption, compensating for the pressure and maintaining pressure balance within the box. In the blocking assembly 513, a counterweight 503 uses gravity to seal the intake duct 511 when the device is not in operation, preventing smoke from escaping. During operation, airflow pushes the rotating rod 501, causing the blocking plate 502 to rotate, opening the air intake channel. The curved design of the connecting duct 512 effectively prevents airflow from escaping, enhancing the device's ability to block and collect smoke.

[0039] Furthermore, drive motors 601 are provided on both sides of the electrostatic adsorption box 6, and the power output ends of the two drive motors 601 are provided with drive gears 602. The inner cavity of the drive gear 602 is threadedly connected to a threaded rod 603, and the other end of the threaded rod 603 is connected to a fixed block 604. A conductive sheet is provided on one side of the fixed block 604, and two metal rods are provided on the side wall of the fixed block 604. The other end of the metal rod is electrically connected to the control device through a wire.

[0040] The structure, consisting of a drive motor 601, a drive gear 602, a threaded rod 603, and a fixing block 604, uses the drive motor 601 to rotate the drive gear 602, and the threaded rod 603 to extend and retract, thereby enabling convenient fixing and removal of the mounting bracket 61 and facilitating the installation and maintenance of the electrostatic adsorption plate 62. When the electrostatic adsorption plate 62 is energized, it can efficiently adsorb particulate matter from the smoke through the principle of electrostatic adsorption.

[0041] Furthermore, the bottom ends of the mounting brackets 61 are arc-shaped, and grooves for plugging into the fixing blocks 604 are provided on both sides of the mounting brackets 61. The side walls of the mounting brackets 61 are detachably connected to the inner cavity side walls of the electrostatic adsorption box 6.

[0042] The curved design at the bottom of mounting bracket 61 guides smoke, preventing it from accumulating within electrostatic adsorption box 6, ensuring smoother smoke flow and improving smoke treatment efficiency. Grooves on either side of the mounting bracket, which mate with fixing block 604, and a removable connection to the inner wall of electrostatic adsorption box 6, ensure that mounting bracket 61 is securely installed and easily disassembled for maintenance.

[0043] Furthermore, the cross section of the electrostatic adsorption plate 62 is configured to be corrugated.

[0044] The corrugated electrostatic adsorption plate 62 increases the contact area with the smoke, prolongs the contact time between the smoke and the electrostatic adsorption plate 62, and combined with the electrostatic adsorption principle, it can more efficiently adsorb particulate matter in the smoke, reduce the particulate matter entering the filter box 7, reduce the frequency of replacing the filter in the filter box 7, and reduce the risk of blockage.

[0045] Furthermore, the inner cavity of the filter box 7 is provided with multiple layers of filter plates.

[0046] The multi-layer filter plates in the filter box 7 perform a second deep filtration on the smoke after electrostatic adsorption and preliminary treatment, further removing tiny particles and impurities, ensuring that the exhaust gas meets environmental protection standards, effectively purifying the working environment and reducing pollution to the atmosphere.

[0047] Working principle:

[0048] 1. Marking process and smoke generation process: The packaging box to be laser marked is placed on the discharge device 4. The first conveyor belt on the discharge device 4 transports the packaging box to the second conveyor belt in the inner cavity of the equipment body 1. The second conveyor belt then transports the packaging box to the front end of the laser marking device 3 in sequence. The laser marking device 3 is started to laser mark the surface of the packaging box. At this time, smoke is generated due to the high temperature.

[0049] 2. Adsorption of smoke through the main suction pipe 8: Install the equipment body 1 on the outside of the workbench 2 to surround the workbench 2. At this time, install the smoke collection box 5 on the top of the equipment body 1 through bolts, and then install the electrostatic adsorption box 6 on the top of the smoke collection box 5 through bolts, start the drive motor 601, and drive the drive gear 602 to rotate through the drive motor 601, and drive the threaded rod 603 to extend and retract through the interaction between the threads. The threaded rod 603 is pushed to push the fixing block 604 to be inserted into the groove inner cavity opened on both sides of the mounting frame 61 through the telescopic movement to fix the mounting frame 61 so that the mounting frame 61 is fixed in the inner cavity of the electrostatic adsorption box 6. When the external suction device is started, the device draws the smoke from the electrostatic adsorption box 6 out of the main suction pipe 8 through the pipe, and the smoke passes through before entering the inner cavity of the main suction pipe 8. When passing through the electrostatic adsorption plate 62, since the electrostatic adsorption plate 62 is electrically connected to the control device through a wire, the surface of the electrostatic adsorption plate 62 is charged with static electricity, and the particles are adsorbed by static electricity. Moreover, since the cross-section of the electrostatic adsorption plate 62 is arranged in a wavy shape, the smoke can prolong the contact time between the smoke and the surface of the electrostatic adsorption plate 62 when passing through the surface of the electrostatic adsorption plate 62, and can more efficiently adsorb the particles in the smoke by static electricity, so that the particles in the smoke are adsorbed on the surface of the electrostatic adsorption plate 62 when passing through the electrostatic adsorption plate 62, thereby preventing the particles in the smoke from entering the filter, reducing the replacement cycle of the filter, and reducing the problem of filter clogging. When the electrostatic adsorption plate 62 needs to be cleaned, it can be disassembled for cleaning. The disassembly method refers to the installation method of inserting the fixing block 604 into the groove.

[0050] 3. When smoke adsorption is being performed, external gas will enter the inner cavity of the smoke collection box 5 through the air intake duct 511 for compensation. After the airflow enters, it pushes the blocking component 513 and is discharged into the inner cavity of the smoke collection box 5 through the connecting duct 512. It should be noted that when the suction device is not started, the counterweight of the counterweight block 503 can make the bottom of the blocking plate 502 fall to the bottom end under the action of gravity, so that the multiple blocking plates 502 fit together, which plays a role in sealing the air intake duct 511, avoiding the problem of smoke overflowing when the amount of smoke is large, and plays an auxiliary blocking role. In addition, the arc-shaped setting of the connecting duct 512 can effectively prevent the risk of airflow overflow.

[0051] Fourth, secondly, the smoke is absorbed by multiple auxiliary suction components 63: when the suction device is started, the gas is sucked away through the hose. During the process, when the gas enters the inner cavity of the Venturi tank through the bottom end of the auxiliary suction pipe 631, due to the structural setting of the Venturi tank, the smoke flows fast when entering, the smoke pressure is high, and the suction force is more efficient than the traditional pipe adsorption. Moreover, when the smoke passes through the surface of the spiral guide plate 632, the spiral setting of the spiral guide plate 632 can guide the smoke to flow in an annular direction, so that the smoke forms a vortex after passing through, which can improve the efficiency of the smoke flow and the adsorption efficiency. Moreover, at this time, the same smoke enters the inner cavity of the auxiliary suction pipe 631 through the air inlet 633 set at the bottom end of the auxiliary suction pipe 631. During the process, the smoke in the inner cavity of the multiple air inlet holes 633 generates annular gas flow compensation when entering, further improving the annular flow state of the smoke, which can avoid the problem of smoke overflowing from the air inlet pipe 511 when the amount of smoke is too large, and improve the effect of smoke adsorption.

[0052] 5. The arc-shaped bottom of the mounting frame 61 can guide the smoke, avoid excessive smoke accumulation, and improve the smooth flow of smoke.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A laser marking device for packaging boxes with a printing fume collection structure, characterized by: The invention comprises an equipment body (1), wherein the inner cavity of the equipment body (1) is provided with a workbench (2); a plurality of laser marking devices (3) are provided on the workbench (2); a first conveyor belt is provided at the top end of the workbench (2); and a discharging device (4) is detachably mounted at the other end of the workbench (2); A smoke collecting box (5) is provided at the top of the equipment body (1), a feed port is provided on one side of the smoke collecting box (5), a plurality of air inlet components (51) are provided on the outer wall of the smoke collecting box (5), an electrostatic adsorption box (6) is installed at the top of the smoke collecting box (5), a mounting frame (61) is detachably provided in the inner cavity of the electrostatic adsorption box (6), a rectangular opening is provided in the center of the mounting frame (61), an electrostatic adsorption plate (62) is provided in the inner cavity of the rectangular opening, the electrostatic adsorption plate (62) is electrically connected to the control device through a wire, and the electrostatic adsorption box (61) is provided with a plurality of air inlet components (51) on the outer wall of the smoke collecting box (5), and an electrostatic adsorption box (6) is installed at the top of the smoke collecting box (5), a mounting frame (61) is detachably provided in the inner cavity of the electrostatic adsorption box (6), a rectangular opening is provided in the center of the mounting frame (61), an electrostatic adsorption plate (62) is provided in the inner cavity of the rectangular opening, and the electrostatic adsorption plate (62) is electrically connected to the control device through a wire. A plurality of auxiliary air suction components (63) are provided on both sides of the top of the adsorption box (6); the auxiliary air suction component (63) includes an auxiliary air suction pipe (631), the auxiliary air suction pipe (631) is plugged into the side wall of the electrostatic adsorption box (6), a Venturi groove is provided in the inner cavity of the auxiliary air suction pipe (631), a plurality of spiral guide vanes (632) arranged in an annular shape are provided on the inner side wall of the Venturi groove, a plurality of air inlet holes (633) are provided on the side wall of the Venturi groove, and the plurality of air inlet holes (633) are arranged in an annular shape at the bottom end of the auxiliary air suction pipe (631); A filter box (7) is provided at the top of the electrostatic adsorption box (6), and the center of the top of the filter box (7) is connected to the main suction pipe (8), and the main suction pipe (8) and the plurality of auxiliary suction components (63) are connected to the suction end of the suction device through a hose.

2. The laser marking device for packaging boxes with a printing fume collection structure according to claim 1, characterized in that: A control device is provided on one side of the discharging device (4), and the control device is electrically connected to the workbench (2), the laser marking device (3) and the discharging device (4) through a wire; a second conveyor belt is provided on the discharging device (4), the tail end of the second conveyor belt is connected to the head end of the first conveyor belt, and two blocking rods are provided on the top of the discharging device (4).

3. The laser marking device for packaging boxes with a printing fume collection structure according to claim 1, characterized in that: The air intake assembly (51) comprises an air intake pipe (511), the air intake pipe (511) being provided on a side wall of the smoke collection box (5), one side of the air intake pipe (511) being connected to a connecting pipe (512), the other end of the connecting pipe (512) extending to the inner cavity of the smoke collection box (5), and the inner cavity of the air intake pipe (511) being provided with a plurality of blocking assemblies (513); The blocking assembly (513) comprises a rotating rod (501), both ends of the rotating rod (501) being rotatably connected to the inner cavity side wall of the air intake pipe (511), a blocking plate (502) being provided on the outer side wall of the rotating rod (501), a slot being provided on one side of the blocking plate (502), and a counterweight (503) being provided on the other side of the blocking plate (502).

4. The laser marking device for packaging boxes with a printing fume collection structure according to claim 1, characterized in that: Drive motors (601) are provided on both sides of the electrostatic adsorption box (6), and the power output ends of the two drive motors (601) are provided with drive gears (602). The inner cavity of the drive gear (602) is threadedly connected to a threaded rod (603), and the other end of the threaded rod (603) is connected to a fixed block (604). A conductive sheet is provided on one side of the fixed block (604), and two metal rods are provided on the side wall of the fixed block (604). The other end of the metal rod is electrically connected to the control device through a wire.

5. The laser marking device for packaging boxes with a printing fume collection structure according to claim 4, characterized in that: The bottom ends of the mounting frames (61) are all arranged in an arc shape, and grooves for plugging and cooperating with the fixing blocks (604) are provided on both sides of the mounting frames (61), and the side walls of the mounting frames (61) are detachably connected to the side walls of the inner cavity of the electrostatic adsorption box (6).

6. The laser marking device for packaging boxes with a printing fume collection structure according to claim 1, characterized in that: The cross section of the electrostatic adsorption plate (62) is arranged in a corrugated shape.

7. The laser marking device for packaging boxes with a printing fume collection structure according to claim 1, characterized in that: The inner cavity of the filter box (7) is provided with multiple layers of filter plates.

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