Plasma modification of honeycomb paperboard surface enhancement device

Abstract

The application discloses a kind of plasma modification honeycomb paperboard surface reinforcement device, comprising: conveying table, the conveying table has conveying belt;Support frame, the support frame is installed to the conveying table, and is supported by the conveying table;Plasma jet head, the plasma jet head is installed to the support frame, and towards the conveying belt;The plasma jet head is provided with multiple, multiple plasma jet head is sequentially spaced in first horizontal direction, to form plasma jet head group.It can improve the working efficiency of paperboard surface processing.

Description

Technical Field

[0001] This invention relates to the field of surface engineering technology, and more particularly to a plasma-modified honeycomb paperboard surface enhancement device. Background Technology

[0002] The plasma-modified honeycomb paperboard surface strengthening device is a specialized apparatus that utilizes low-temperature plasma technology to physicochemically modify the surface of honeycomb paperboard. This device generates high-energy plasma under atmospheric or low-pressure conditions, bombarding the paperboard surface and introducing polar functional groups, significantly improving the surface properties of the honeycomb paperboard and thus greatly enhancing the adhesion between the paperboard and coatings or adhesives. This device effectively solves the problems of poor surface adhesion and easy delamination in traditional honeycomb paperboard, and is widely used in packaging, building materials, and furniture manufacturing, significantly improving product quality and applicability.

[0003] Most existing plasma-modified honeycomb paperboard surface strengthening devices are equipped with only one nozzle. When the conveyor belt slowly feeds the paperboard to be treated into the processing area, the nozzle is moved quickly by a horizontal moving mechanism connected to the nozzle to bombard the paperboard surface repeatedly in the horizontal direction. If some paperboards are wider, the horizontal moving distance of the nozzle is longer, and the conveyor belt speed needs to be further reduced to ensure that the nozzle covers the paperboard surface, which makes the processing time longer and results in low efficiency of the device in processing paperboard surfaces. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide a plasma-modified honeycomb paperboard surface strengthening device, which can improve the working efficiency of paperboard surface treatment.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A plasma-modified honeycomb paperboard surface strengthening device includes: a conveyor table, a support frame, and a plasma nozzle;

[0007] The conveyor platform has a conveyor belt;

[0008] The support frame is installed on the conveyor table and is supported by the conveyor table;

[0009] The plasma nozzles are mounted on the support frame and face the conveyor belt; multiple plasma nozzles are provided, and the multiple plasma nozzles are arranged sequentially at intervals along the first horizontal direction to form a plasma nozzle group.

[0010] Furthermore, the plasma-modified honeycomb paperboard surface strengthening device further includes a pushing component, which is installed on the conveyor table and supported by the conveyor table; the conveying direction of the conveyor belt is defined as a second horizontal direction, and the pushing component and the support frame are arranged sequentially at intervals along the second horizontal direction; the pushing component is used to push the inclined paperboard to the processing area waiting for the plasma nozzle to process.

[0011] Furthermore, the pushing assembly includes a support column, a horizontal moving mechanism, a connecting rod, and a pushing head. The support column is connected to the conveyor table, the horizontal moving mechanism is mounted on the support column and supported by the support column, the horizontal moving mechanism is driven to the connecting rod to drive the connecting rod to move along a first horizontal direction, and the pushing head is connected to the connecting rod and is used to abut against the cardboard.

[0012] Furthermore, there are two connecting rods, which are arranged alternately along the first horizontal direction, forming a cardboard pushing space between them.

[0013] Furthermore, the plasma-modified honeycomb paperboard surface reinforcement device further includes at least two conductive tubes, each of which is connected to one of the connecting rods to move along a first horizontal direction, thereby causing the two conductive tubes to move closer or further apart along the first horizontal direction; the support frame is provided with a guide rail that extends along the first horizontal direction and is electrically connected to the circuit of the plasma nozzle; one end of the conductive tube is electrically connected to a power source, and the other end of the conductive tube is slidably connected to the guide rail, so that a power circuit is formed between the two conductive tubes and the circuit of the plasma nozzle.

[0014] Furthermore, the plasma nozzle group is provided with at least two groups, and the at least two groups of plasma nozzle groups are arranged at intervals along the second horizontal direction; the projections of each plasma nozzle in the at least two groups of plasma nozzle groups on the horizontal plane are staggered.

[0015] Furthermore, one of the two connecting rods is provided with a laser emitter, and the other of the two connecting rods is provided with a laser receiver adapted to the laser emitter; the laser emitter and the push head are arranged sequentially at intervals along the second horizontal direction; the laser emitter is signal connected to the horizontal moving mechanism.

[0016] Furthermore, multiple push heads are provided, and the multiple push heads are distributed sequentially at intervals along the second horizontal direction.

[0017] Furthermore, the pusher head has a roller structure.

[0018] Furthermore, the outer layer of the conductive tube is covered with an insulating material.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The conveyor table has a conveyor belt; the conveyor belt provides a stable conveying speed, ensuring that every part of the cardboard surface can pass through the plasma modification treatment area at the same rate, avoiding differences in treatment effect caused by uneven residence time, and improving work reliability.

[0021] 2. The support frame is installed on the conveyor platform and supported by the platform; the bottom of the support frame is rigidly connected to the base of the conveyor platform by bolts, ensuring the stability of the overall structure and providing a stable installation structure for the subsequent installation of the plasma nozzle, thereby improving the reliability of the operation.

[0022] 3. The plasma nozzles are mounted on a support frame and face the conveyor belt. Multiple plasma nozzles are arranged sequentially and at intervals along a first horizontal direction to form a plasma nozzle group. While the effective processing width of a single plasma nozzle is typically narrow, when processing wider cardboard, arranging multiple plasma nozzles in an array along the first horizontal direction creates a continuous and uniform processing belt. As the cardboard passes through the conveyor belt, the entire surface of the cardboard can be simultaneously and comprehensively covered, thus improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a plasma-modified honeycomb paperboard surface reinforcement device according to the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 for Figure 1 A magnified view of a section at point B in the middle.

[0026] In the diagram: 1. Conveyor platform; 101. Conveyor belt; 2. Support frame; 201. Guide rail; 3. Plasma nozzle; 4. Pushing assembly; 401. Support column; 402. Horizontal moving mechanism; 403. Connecting rod; 404. Pushing head; 5. Conductive tube; 6. Laser emitter; 7. Laser receiver. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] See Figures 1-3 A preferred embodiment of the present invention provides a plasma-modified honeycomb paperboard surface strengthening device, comprising: a conveyor 1, a support frame 2, and a plasma nozzle 3;

[0031] The conveyor 1 has a conveyor belt 101; the conveyor belt 101 provides a stable conveying speed, ensuring that every part of the cardboard surface can pass through the plasma modification treatment area at the same rate, avoiding differences in treatment effect caused by uneven residence time in different parts of the cardboard, and improving work reliability.

[0032] The support frame 2 is installed on the conveyor table 1 and supported by the conveyor table 1. Preferably, the support frame 2 includes two vertical columns fixed on the frame on both sides of the conveyor table 1, and a crossbeam spanning above the conveyor belt 101. The bottom of the support frame 2 is rigidly connected to the base of the conveyor table 1 by bolts to ensure the stability of the overall structure and provide a stable installation structure for the subsequent installation of the plasma nozzle 3, thereby improving the reliability of the operation.

[0033] Plasma nozzles 3 are mounted on support frame 2 and face conveyor belt 101. Multiple plasma nozzles 3 are arranged sequentially and at intervals along a first horizontal direction to form a group of plasma nozzles 3. The plasma nozzles 3 are suspended from the crossbeam by fasteners. The effective processing width of a single plasma nozzle 3 is typically narrow. When processing wider cardboard, by arranging multiple plasma nozzles 3 in an array along the first horizontal direction to form a continuous and uniform processing belt, the entire surface of the cardboard can be simultaneously and comprehensively covered as it passes through the conveyor belt 101, thereby improving work efficiency.

[0034] When using this invention, the support frame 2 is first fixedly installed on the base of the conveyor 1. Then, multiple plasma nozzles 3 are arranged side by side on the crossbeam of the support frame 2 along the first horizontal direction to form a plasma modification treatment belt. Next, the cardboard to be treated is placed on the conveyor belt 101, which transports it to the area treated by the plasma nozzles 3 at a uniform speed. Multiple plasma nozzles 3 release plasma to attack the surface of the cardboard for modification. At this time, the entire surface of the cardboard can be treated and modified simultaneously without reducing the speed of the conveyor belt 101. Then, the entire modification work is completed by waiting for the conveyor belt 101 to transport the cardboard out of the treatment area.

[0035] The conveyor table 1 has a conveyor belt 101. The conveyor belt 101 provides a stable conveying speed, ensuring that every part of the cardboard surface passes through the plasma modification treatment area at the same rate, avoiding differences in treatment effect caused by uneven residence time and improving work reliability. A support frame 2 is installed on and supported by the conveyor table 1. The bottom of the support frame 2 is rigidly connected to the base of the conveyor table 1 by bolts, ensuring the stability of the overall structure and providing a stable installation structure for the subsequent installation of the plasma nozzles 3, thereby improving work reliability. Multiple plasma nozzles 3 are installed on the support frame 2 and face the conveyor belt 101. Multiple plasma nozzles 3 are arranged sequentially and spaced apart along a first horizontal direction to form a plasma nozzle group 3. The effective processing width of a single plasma nozzle 3 is usually narrow. When processing wider cardboard, by arranging multiple plasma nozzles 3 in an array along the first horizontal direction to form a continuous and uniform treatment belt, the entire surface of the cardboard can be simultaneously and comprehensively covered as it passes through the conveyor belt 101, thereby improving work efficiency.

[0036] Preferably, a plasma-modified honeycomb paperboard surface strengthening device further includes a pushing component 4, which is installed on and supported by the conveyor table 1. The conveying direction of the conveyor belt 101 is defined as a second horizontal direction, and the pushing component 4 and the support frame 2 are arranged sequentially at intervals along the second horizontal direction. The pushing component 4 is used to push the tilted paperboard to the processing area waiting for the plasma nozzle 3 to process. During the paperboard feeding process, due to manual placement or deviations in the previous process, the paperboard may be tilted at a certain angle relative to the conveyor belt 101. This will result in the processing mark of the plasma nozzle 3 not being on the same horizontal line as the length or width of the paperboard after the subsequent plasma nozzle 3 processes the paperboard surface, thus affecting the modification effect and the subsequent printing work on the paperboard surface. The pushing component 4 uses external mechanical force to apply lateral thrust to the paperboard, causing it to rotate or translate, and finally reach a predetermined ideal position, such as the centerline of the conveyor belt 101 or a reference on one side. The correction action can be manually controlled or triggered by sensors in real time to ensure that the paperboard completes the posture adjustment before entering the processing area without affecting the continuous operation of the conveyor belt 101. By straightening the tilted cardboard, ensuring that the distance between the plasma nozzle 3 and all points on the cardboard surface remains consistent, the corrected cardboard can smoothly pass under the plasma nozzle 3, thereby improving the processing effect. The pushing component 4 can be a cylinder-driven pushing component 4 with a push rod; or a servo motor and ball screw pushing component 4 with a push plate; the pushing component 4 can satisfy the pushing of the cardboard, and the cardboard posture can be adjusted.

[0037] Preferably, the pushing component 4 includes a support column 401, a horizontal moving mechanism 402, a connecting rod 403, and a pushing head 404. The support column 401 is connected to the conveyor table 1. The horizontal moving mechanism 402 is mounted on the support column 401 and supported by the support column 401. The horizontal moving mechanism 402 is driven to connect with the connecting rod 403 to drive the connecting rod 403 to move along a first horizontal direction. The pushing head 404 is connected to the connecting rod 403 and is used to abut against the cardboard. The support column 401, as the basic load-bearing component, is rigidly connected to the conveyor table 1, transferring the weight and working load of the entire pushing assembly 4 to the conveyor table 1, and raising the horizontal moving mechanism 402 to a position higher than the cardboard, avoiding interference between the horizontal moving mechanism 402 and the conveyor belt 101 or the cardboard. The horizontal moving mechanism 402 provides linear motion output, generating lateral displacement, converting the rotational motion of the motor into linear displacement, and possessing a certain position control capability. The connecting rod 403, as the intermediate arm for force transmission, transmits the driving force of the horizontal moving mechanism 402 from the installation point to the contact point of the cardboard, while also serving as a spatial extension function. The pushing head 404, as the end-effector, directly contacts the cardboard to complete the correction of the paper's posture. The horizontal moving mechanism 402 can adopt a lead screw or track structure, which offers higher positioning accuracy compared to simpler drive methods such as cylinders, and can precisely control the pushing distance to adapt to the correction needs of cardboards of different widths. The overall outer contour of the pushing head 404 can adopt a block structure, a plate structure, or a structure with rotating rollers.

[0038] Preferably, two connecting rods 403 are provided, and the two connecting rods 403 are arranged alternately along the first horizontal direction, forming a cardboard pushing space between the two connecting rods 403. One end of each of the two connecting rods 403 is fixedly connected to the pushing head 404, and the other end is connected to the horizontal moving mechanism 402. A certain distance is maintained between the two connecting rods 403, thereby forming a cardboard pushing space between them. When the cardboard is conveyed to the cardboard pushing area by the conveyor belt 101, the cardboard body is exactly located in this space, while the pushing head 404 is located to the side of the cardboard. When the driving mechanism pushes the connecting rods 403, the thrust is transmitted to the pushing head 404 through the two parallel connecting rods 403, ensuring that the pushing head 404 maintains a stable posture during movement and does not deflect or tilt. Preferably, the horizontal moving mechanism 402 can adopt a reverse double-helix screw structure, so that the two connecting rods 403 can be centered and push synchronously, thereby ensuring the synchronicity of the pushing operation. The structure of the two connecting rods 403 effectively constrains the movement of the pusher head 404, ensuring that the pusher head 404 can only move in a straight line. This avoids the possibility of the pusher plate rotating or tilting due to single-point drive, ensuring that the cardboard is pushed upright and enters the area waiting for plasma nozzle 3 to process. Furthermore, the two connecting rods 403 themselves can serve as guiding elements, eliminating the need for additional guide rails 201 and simplifying the structural design.

[0039] Preferably, a plasma-modified honeycomb paperboard surface reinforcement device further includes at least two conductive tubes 5, each conductive tube 5 being connected to one of the connecting rods 403 to move along the first horizontal direction with the connecting rod 403, thereby causing the two guide rods to move closer or further apart along the first horizontal direction; the support frame 2 is provided with a guide rail 201, which extends along the first horizontal direction and is electrically connected to the circuit of the plasma nozzle 3; one end of the conductive tube 5 is electrically connected to a power source, and the other end of the conductive tube 5 is slidably connected to the guide rail 201, so that a power circuit is formed between the two conductive tubes 5 and the circuit of the plasma nozzle 3. One end of each conductive tube 5 is fixedly connected to a connecting rod 403, and the other end is equipped with a current collector similar to a brush; the guide rail 201 is an insulated conduit with multiple conductors embedded inside, i.e., a multi-pole sliding contact line, and the conductors inside the guide rail 201 are electrically connected to the circuit of the plasma nozzle 3. The end of the conductive tube 5 extends into the guide rail 201. The current collector at the end of the conductive tube 5 slides in contact with the conductor inside the guide rail 201. The other end of the conductive tube 5 is connected to the power supply via a cable. When the drive mechanism moves the connecting rod 403 along the first horizontal direction, the conductive tube 5 and the current collector at its end slide synchronously within the guide rail 201, thus maintaining circuit continuity between the power supply and the plasma nozzle 3 circuit during movement. This arrangement, when the two connecting rods 403 push the cardboard in the center, can drive the two conductive tubes 5 connected to the connecting rods 403 to move synchronously. At the same time, the end of the conductive tube 5 that is slidably connected to the guide rail 201 also slides, so that only the plasma nozzle 3 between the two conductive tubes 5 can form a power circuit to work. This allows the number of plasma nozzles 3 used to be adjusted in real time during equipment operation according to the cardboard specifications to adapt to different cardboard sizes without the need for machine shutdown, power outages, or manual adjustments, thereby improving work efficiency and ease of use.

[0040] Preferably, at least two groups of plasma nozzles 3 are provided, and the at least two groups of plasma nozzles 3 are arranged at intervals along the second horizontal direction; the projections of each plasma nozzle 3 in the at least two groups of plasma nozzles 3 on the horizontal plane are staggered. When the plasma nozzles 3 are set up, because the plasma nozzles 3 will vibrate during operation, adjacent plasma nozzles 3 cannot be tightly fitted together to avoid collision damage during operation; and the coverage area of ​​the plasma nozzles 3 cannot spread outwards, but is only the size of the horizontal projection area of ​​the plasma nozzles 3. Therefore, setting only a single row of multiple plasma nozzles 3 will result in untreated gaps in the cardboard during one processing. However, by setting at least two groups of plasma nozzles 3, when viewed from the horizontal plane projection, the distribution of the two groups of nozzles is like staggered chess pieces on a chessboard, which can jointly cover the entire processing surface, avoiding the appearance of processing gaps, thereby processing the entire cardboard surface in one go and improving work efficiency. The plasma nozzles 3 can be set in only two rows, or in more than two rows.

[0041] Preferably, one of the two connecting rods 403 is equipped with a laser emitter 6, and the other of the two connecting rods 403 is equipped with a laser receiver 7 adapted to the laser emitter 6; the laser emitter 6 and the pusher head 404 are arranged alternately along the second horizontal direction; the laser emitter 6 is signal-connected to the horizontal moving mechanism 402. This configuration uses a general control system to electrically connect the laser emitter 6, the laser receiver 7, and the horizontal moving mechanism 402 together; the laser emitter 6 continuously emits one or more parallel laser beams, which illuminate the receiver on the opposite side, forming a detection light curtain. When the cardboard blocks the beam, the output signal of the laser receiver 7 changes, and the control system connected to the laser receiver 7 determines the presence and tilt state of the cardboard accordingly; since the laser emitter 6 is arranged in front of the pusher plate along the conveying direction, the state of the cardboard can be detected in advance when it enters the pushing area but has not yet reached the pusher plate position, giving the control system sufficient time to respond and control the horizontal moving mechanism 402 to push the cardboard synchronously when it reaches the pusher head 404, eliminating the need for manual control and thus improving ease of use.

[0042] Preferably, multiple push heads 404 are provided, and the multiple push heads 404 are distributed sequentially and at intervals along the second horizontal direction. Due to the porous structure of the cardboard and its limited rigidity, if a single push head 404 is used for single-point or single-line contact pushing, the pushing force is concentrated in a local area of ​​the cardboard, which can easily lead to local deformation of the cardboard. By using multiple push heads 404 distributed along the second horizontal direction, it is equivalent to converting the concentrated force into multiple dispersed force points, so that the pushing force is evenly applied to multiple parts of the side of the cardboard, improving the stress state, avoiding crushing or deformation of the cardboard edges during the pushing process, and thus protecting the integrity of the cardboard workpiece.

[0043] Preferably, the pusher head 404 is a roller structure. This roller consists of a spindle and a freely rotatable outer cylinder. The spindle is fixed to a push plate, and the outer cylinder is connected to the spindle via bearings and can rotate around the spindle. The outer surface of the roller can be covered with a certain thickness of rubber material to increase friction and cushion impact. When the pusher head 404 contacts the cardboard in roller form, the relative motion between them changes from sliding friction to rolling friction. The roller rotates freely under the push of the cardboard, converting sliding friction into rolling friction, thereby reducing frictional resistance and ensuring the cardboard can continuously travel on the conveyor belt 101. Simultaneously, the rotation of the roller adapts to the movement of the cardboard as it moves forward with the conveyor belt 101, avoiding scratching or jamming between the cardboard and the pusher head 404 during the pushing process, reducing scratching and wear on the cardboard surface during pushing, and improving the service life of the components.

[0044] Preferably, the outer layer of the conductive tube 5 is covered with an insulating material. As part of the mobile power supply line, the conductive tube 5 carries the current supplied to the plasma nozzle 3. After being covered with insulating material, this insulating material has high dielectric strength and volume resistivity, effectively preventing current leakage, electric shock accidents, and short circuit faults, thus improving the safety of personnel and other equipment during operation. At the same time, the insulating layer also provides mechanical protection and corrosion resistance to the conductive tube 5, extending its service life. The insulating material can be high-voltage resistant, wear-resistant, and aging-resistant polytetrafluoroethylene (PTFE, i.e., Teflon) or cross-linked polyethylene.

[0045] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A plasma-modified honeycomb paperboard surface reinforcement device, characterized in that, include: A conveyor (1) having a conveyor belt (101). Support frame (2), which is installed on the conveyor table (1) and supported by the conveyor table (1); Plasma nozzle (3) is mounted on the support frame (2) and faces the conveyor belt (101); multiple plasma nozzles (3) are provided, and multiple plasma nozzles (3) are arranged sequentially at intervals along the first horizontal direction to form a plasma nozzle (3) group.

2. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 1, characterized in that, The plasma-modified honeycomb paperboard surface enhancement device further includes a pushing component (4), which is installed on the conveyor table (1) and supported by the conveyor table (1); the conveying direction of the conveyor belt (101) is defined as the second horizontal direction, and the pushing component (4) and the support frame (2) are arranged sequentially at intervals along the second horizontal direction; the pushing component (4) is used to push the inclined paperboard to the processing area waiting for the plasma nozzle (3) to process.

3. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 2, characterized in that, The pushing component (4) includes a support column (401), a horizontal moving mechanism (402), a connecting rod (403), and a pushing head (404). The support column (401) is connected to the conveyor (1). The horizontal moving mechanism (402) is installed on the support column (401) and supported by the support column (401). The horizontal moving mechanism (402) is driven to connect with the connecting rod (403) to drive the connecting rod (403) to move along a first horizontal direction. The pushing head (404) is connected to the connecting rod (403) and is used to abut against the cardboard.

4. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 3, characterized in that, Two connecting rods (403) are provided, and the two connecting rods (403) are arranged alternately along the first horizontal direction, forming a cardboard pushing space between the two connecting rods (403).

5. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 4, characterized in that, The plasma-modified honeycomb paperboard surface reinforcement device further includes at least two conductive tubes (5), each of which is connected to one of the connecting rods (403) to move along the first horizontal direction with the connecting rod (403), thereby causing the two conductive tubes (5) to move closer or further apart from each other along the first horizontal direction; the support frame (2) is provided with a guide rail (201), which extends along the first horizontal direction and is electrically connected to the circuit of the plasma nozzle (3); one end of the conductive tube (5) is electrically connected to the power supply, and the other end of the conductive tube (5) is slidably connected to the guide rail (201) so that an electrical circuit is formed between the two conductive tubes (5) and the circuit of the plasma nozzle (3).

6. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 1, characterized in that, The plasma nozzle (3) group is provided in at least two groups, and the at least two groups of plasma nozzles (3) are arranged at intervals along the second horizontal direction; the projections of each plasma nozzle (3) in the at least two groups of plasma nozzles (3) on the horizontal plane are staggered.

7. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 3, characterized in that, One of the two connecting rods (403) is provided with a laser emitter (6), and the other of the two connecting rods (403) is provided with a laser receiver (7) adapted to the laser emitter (6); the laser emitter (6) and the push head (404) are arranged sequentially at intervals along the second horizontal direction; the laser emitter (6) is signal connected to the horizontal moving mechanism (402).

8. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 3, characterized in that, Multiple push heads (404) are provided, and the multiple push heads (404) are distributed sequentially at intervals along the second horizontal direction.

9. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 8, characterized in that, The push head (404) has a roller structure.

10. The plasma-modified honeycomb paperboard surface reinforcement device according to claim 5, characterized in that, The outer layer of the conductive tube (5) is covered with insulating material.

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