An atmospheric pressure plasma surface treatment device

Abstract

This invention relates to the field of workpiece surface cleaning technology, and more particularly to an atmospheric pressure plasma surface treatment device, comprising a plasma generating mechanism one, a plasma generating mechanism two, a plasma generating mechanism three, and a conveyor belt. The plasma generating mechanisms one, two, and three are installed at an angle; the bottom ends of the plasma generating mechanisms one, two, and three are equidistant from the top surface of the conveyor belt. This invention, in conjunction with the conveyor belt, allows multiple plasma beams to fully cover the surface of the workpiece to be cleaned, while preventing interference between adjacent plasma beams. This enables the entire device to clean a large area of ​​the workpiece while avoiding cleaning dead zones, ensuring excellent cleaning results at every location within the large cleaning area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of workpiece surface cleaning treatment, in particular to an atmospheric pressure plasma surface treatment device. BACKGROUND

[0002] Plasma is the fourth state of matter, which is composed of a large number of free electrons, ions and neutral particles, and the whole is electrically neutral. Under the action of high temperature and high pressure or electric field, gas molecules ionize to form plasma, and the active particles (such as electrons, ions and free radicals) of the plasma have physical and chemical effects on the material surface; specifically, the physical effect refers to the impact of high-speed particles on the surface to achieve fine cleaning; the chemical effect refers to the reaction of active particles with surface substances to generate new functional groups (such as hydroxyl, carboxyl and amino groups), thereby changing the chemical composition of the surface and achieving the purpose of cleaning the workpiece surface.

[0003] The core of the plasma surface cleaning device is the plasma generating mechanism, which can generate plasma for cleaning the surface of the workpiece. For example, the patent with publication number CN116422650B discloses a plasma cleaning equipment, which cleans the workpiece through multiple plasma cleaning nozzles (i.e. plasma generating mechanism).

[0004] In the technical solution described in the patent, although multiple plasma cleaning nozzles can achieve large-area plasma cleaning, on the one hand, if the distance between two adjacent plasma cleaning nozzles is too large, there is a gap between the two beams of plasma, and the workpiece surface cannot be fully covered and cleaned; on the other hand, due to the particularity of plasma, if the distance between two adjacent plasma beams is too small, the two adjacent plasma beams will affect each other, for example, electric field distortion or magnetic field coupling occurs, and the workpiece surface at the position of the electric field distortion or magnetic field coupling cannot achieve the expected surface cleaning effect; in short, the current plasma cleaning device cannot guarantee the cleaning effect of the workpiece under the condition of large cleaning area. SUMMARY

[0005] The present application aims to provide an atmospheric pressure plasma surface treatment device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] An atmospheric pressure plasma surface treatment device, comprising a plasma generating mechanism one, a plasma generating mechanism two, a plasma generating mechanism three and a conveying belt, wherein the installation positions of the plasma generating mechanism one, the plasma generating mechanism two and the plasma generating mechanism three are arranged obliquely.

[0008] The distance between the bottom end of the first plasma generating mechanism, the second plasma generating mechanism and the third plasma generating mechanism and the top surface of the conveying belt is equal, and the conveying belt is used to drive the workpiece to be cleaned to move from below the first plasma generating mechanism, the second plasma generating mechanism and the third plasma generating mechanism, so as to use the multiple plasma beams to perform large-area cleaning operation on the surface of the workpiece to be cleaned;

[0009] The first plasma generating mechanism and the second plasma generating mechanism are connected through a connecting assembly, and the second plasma generating mechanism and the third plasma generating mechanism are connected through a connecting assembly, the connecting assembly is used to adjust the relative position of the first plasma generating mechanism and the second plasma generating mechanism and the second plasma generating mechanism and the third plasma generating mechanism in the left-right direction, so that the overlapping area of the front plasma coverage area of the first plasma generating mechanism, the middle plasma coverage area of the second plasma generating mechanism and the rear plasma coverage area of the third plasma generating mechanism in the left-right direction is adjustable.

[0010] Preferably, the connecting assembly comprises a first fixed block and a second fixed block arranged oppositely, and the first fixed block and the second fixed block are fixedly connected with the adjacent plasma generating mechanism respectively.

[0011] The first fixed block and the second fixed block are connected through a guide rod, and the first fixed block and the second fixed block are provided with an adjusting screw rod for adjusting the distance.

[0012] Preferably, one end of the guide rod is fixedly connected with the second fixed block, and the other end of the guide rod is fixedly connected with a limiting block.

[0013] One end of the adjusting screw rod is coaxially fixed with an end shaft, the end shaft is rotatably connected with the first fixed block through a bearing, and the other end of the adjusting screw rod is fixedly connected with a handle.

[0014] Preferably, the top end of the first fixed block is fixedly connected with a first plate body, and the top end of the second fixed block is fixedly connected with a second plate body.

[0015] The rear side of the first plate body is provided with a scale line.

[0016] The rear side of the first plate body is partially abutted with the front side of the second plate body.

[0017] Preferably, the first plasma generating mechanism is provided with a front laser assembly, the second plasma generating mechanism is provided with a middle laser assembly, and the third plasma generating mechanism is provided with a rear laser assembly.

[0018] The front laser assembly comprises a first front laser and a second front laser, the first front laser is capable of forming a first front laser mark on the surface of the workpiece to be cleaned, and the second front laser is capable of forming a second front laser mark on the surface of the workpiece to be cleaned, and the front plasma coverage area is located between the first front laser mark and the second front laser mark;

[0019] The middle laser assembly comprises a first middle laser capable of forming a first middle laser mark on the surface of the workpiece to be cleaned and a second middle laser capable of forming a second middle laser mark on the surface of the workpiece to be cleaned, and the middle plasma coverage area is located between the first middle laser mark and the second middle laser mark;

[0020] The rear laser assembly comprises a first rear laser capable of forming a first rear laser mark on the surface of the workpiece to be cleaned and a second rear laser capable of forming a second rear laser mark on the surface of the workpiece to be cleaned, and the rear plasma coverage area is located between the first rear laser mark and the second rear laser mark;

[0021] Among them, the first front laser and the second front laser emit the same color laser, the first middle laser and the second middle laser emit the same color laser, and the first rear laser and the second rear laser emit the same color laser; the first front laser and the first middle laser emit different colors of laser, and the first middle laser and the first rear laser emit different colors of laser.

[0022] Preferably, the front laser assembly further comprises a third front laser arranged on one side of the second front laser, and the third front laser emits a different color laser from the second front laser;

[0023] The middle laser assembly further comprises a third middle laser arranged on one side of the first middle laser, and the third middle laser emits a different color laser from the first middle laser;

[0024] The connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism is provided with a first button switch and a second button switch, the third front laser is electrically connected to the power supply through the first button switch, and the third middle laser is electrically connected to the power supply through the second button switch;

[0025] When the front plasma coverage area and the middle plasma coverage area overlap, the first button switch and the second button switch are triggered.

[0026] Preferably, the middle laser assembly further comprises a fourth middle laser arranged on one side of the second middle laser, and the fourth middle laser emits a different color laser from the second middle laser;

[0027] The rear laser assembly further comprises a third rear laser arranged on one side of the first rear laser, and the third rear laser emits a different color laser from the first rear laser;

[0028] The third button switch and the fourth button switch are arranged on the connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism, the fourth rear laser is electrically connected with the power supply through the third button switch, and the third rear laser is electrically connected with the power supply through the fourth button switch.

[0029] The third button switch and the fourth button switch are triggered when the medium plasma coverage area and the rear plasma coverage area overlap.

[0030] Preferably, the first button switch and the second button switch are arranged on the front side of the first plate body of the connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism.

[0031] The third button switch and the fourth button switch are arranged on the front side of the first plate body of the connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism.

[0032] The second plate body of the connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism triggers the first button switch and the second button switch when the current plasma coverage area and the medium plasma coverage area overlap.

[0033] The second plate body of the connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism triggers the third button switch and the fourth button switch when the medium plasma coverage area and the rear plasma coverage area overlap.

[0034] Compared with the prior art, the present application has the following beneficial effects:

[0035] The present application is characterized in that the installation positions of the plasma generating mechanism one, the plasma generating mechanism two and the plasma generating mechanism three are arranged in an inclined manner, and the plasma generating mechanism one and the plasma generating mechanism two and the plasma generating mechanism two and the plasma generating mechanism three are spaced apart in the front-rear direction, and then, in cooperation with the connecting assembly, the distance between the plasma generating mechanism one and the plasma generating mechanism two and the plasma generating mechanism two and the plasma generating mechanism three in the left-right direction is adjustable, so that, in cooperation with the conveying belt, the plasma beams generated by the plasma generating mechanism one, the plasma generating mechanism two and the plasma generating mechanism three can fully cover the surface of the workpiece to be cleaned, achieving the purpose of large-area cleaning, and at the same time, the adjacent two plasma beams will not interfere with each other due to the sufficient spacing, so that the entire device can clean the workpiece to be cleaned in a large area, and can avoid cleaning dead angles, ensuring good cleaning effect at each position in the large cleaning area; in addition, the front plasma coverage area and the middle plasma coverage area can be adjusted to a state of partial overlap according to actual needs, or the middle plasma coverage area and the rear plasma coverage area can be adjusted to a state of partial overlap, and the workpiece to be cleaned can be cleaned twice in one conveying process at the corresponding overlapping area, so that the needs of some workpieces that require different degrees of surface treatment can be met, and since the adjacent two plasma generating mechanisms are spaced apart in the front-rear direction, the surface cleaning of the workpiece to be cleaned at the corresponding overlapping area is spaced apart, which is beneficial to the protection of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0037] Figure 2 It is a schematic diagram of the overall top view structure of the present application;

[0038] Figure 3 It is a schematic diagram of the top view structure of the plasma generating mechanism one, the plasma generating mechanism two, the plasma generating mechanism three and the conveying belt of the present application;

[0039] Figure 4 It is a schematic diagram of the top view structure of the plasma generating mechanism one of the present application;

[0040] Figure 5 It is a schematic diagram of the top view structure of the plasma generating mechanism two of the present application;

[0041] Figure 6 It is a schematic diagram of the top view structure of the plasma generating mechanism three of the present application;

[0042] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting assembly of the present application;

[0043] Figure 8 The first plate body structure diagram of the present application;

[0044] Figure 9 The first button switch and the second button switch structure diagram of the present application;

[0045] Figure 10 The third button switch and the fourth button switch structure diagram of the present application.

[0046] In the figure: 1, the first plasma generating mechanism; 101, the front plasma coverage area; 2, the second plasma generating mechanism; 201, the middle plasma coverage area; 3, the third plasma generating mechanism; 301, the rear plasma coverage area; 4, the connecting assembly; 401, the first fixed block; 402, the second fixed block; 403, the adjusting screw; 4031, the end shaft; 4032, the handle; 404, the guide rod; 4041, the limiting block; 405, the first plate body; 4051, the scale line; 4052, the first through hole; 4053, the second through hole; 406, the second plate body; 5, the conveying belt; 6, the front laser assembly; 601, the first front laser; 6011, the first front laser mark line; 602, the second front laser; 6021, the second front laser mark line; 603, the third front laser; 6031, the third front laser mark line; 604, the first coincident laser mark line; 7, the middle laser assembly; 701, the first middle laser; 7011, the first middle laser mark line; 702, the second middle laser; 7021, the second middle laser mark line; 703, the third middle laser; 7031, the third middle laser mark line; 704, the fourth middle laser; 7041, the fourth middle laser mark line; 705, the second coincident laser mark line; 706, the third coincident laser mark line; 8, the rear laser assembly; 801, the first rear laser; 8011, the first rear laser mark line; 802, the second rear laser; 8021, the second rear laser mark line; 803, the third rear laser; 8031, the third rear laser mark line; 804, the fourth coincident laser mark line; 9, the first button switch; 901, the first button; 902, the conical surface; 10, the second button switch; 1001, the second button; 11, the third button switch; 1101, the third button; 12, the fourth button switch; 1201, the fourth button. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0048] Please refer toFigures 1-10 The application provides a technical scheme:

[0049] The atmospheric pressure plasma surface treatment device comprises plasma generating mechanism one 1, plasma generating mechanism two 2, plasma generating mechanism three 3 and a conveying belt 5, wherein the installation positions of the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are arranged in an inclined manner, as shown in the figure, the plasma generating mechanism two 2 is arranged at the right rear of the plasma generating mechanism one 1, and the plasma generating mechanism three 3 is arranged at the right rear of the plasma generating mechanism two 2; and the number of the plasma generating mechanism one 1 and the plasma generating mechanism three 3 is one, and the number of the plasma generating mechanism two 2 can be adjusted according to actual conditions, and one plasma generating mechanism two 2 is taken as an example for description in the embodiment; the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are arranged in sequence in the direction of the right rear, forming an inclined plasma generating mechanism array. Figures 1-3

[0050] The distance between the bottom ends of the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3 and the top surface of the conveying belt 5 is equal, the conveying belt 5 is used for moving the workpiece to be cleaned from below the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3, so as to use the multiple plasma beams to perform large-area cleaning operation on the surface of the workpiece to be cleaned; in the embodiment, the conveying direction of the conveying belt 5 is the front, that is, the workpiece to be cleaned is moved by the conveying belt 5 towards the front, in the moving process, the plasma beams generated by the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are sprayed on the surface of the workpiece to be cleaned, so as to realize the treatment of the surface of the workpiece to be cleaned.

[0051] ​The plasma generating mechanism one 1 and the plasma generating mechanism two 2 and the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are connected through the connecting assembly 4, the connecting assembly 4 is used for adjusting the relative position of the plasma generating mechanism one 1 and the plasma generating mechanism two 2 and the plasma generating mechanism two 2 and the plasma generating mechanism three 3 in the left-right direction, so that the overlapping area of the front plasma coverage area 101 of the plasma generating mechanism one 1, the middle plasma coverage area 201 of the plasma generating mechanism two 2 and the rear plasma coverage area 301 of the plasma generating mechanism three 3 in the left-right direction can be adjusted; wherein the front plasma coverage area 101 refers to the area on the surface of the workpiece to be cleaned, which is acted on by the plasma beam generated by the plasma generating mechanism one 1 during the conveying process of the conveying belt 5, and the middle plasma coverage area 201 and the rear plasma coverage area 301 are the areas on the surface of the workpiece to be cleaned, which are acted on by the plasma generating mechanism two 2 and the plasma generating mechanism three 3 respectively.

[0052] In the technical solution, the plasma generating mechanism two 2 is arranged at the right rear of the plasma generating mechanism one 1, and the plasma generating mechanism three 3 is arranged at the right rear of the plasma generating mechanism two 2, so that the plasma generating mechanism one 1 and the plasma generating mechanism two 2 and the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are spaced apart in the front-rear direction, and then the connecting assembly 4 is used to adjust the distance between the plasma generating mechanism one 1 and the plasma generating mechanism two 2 and the plasma generating mechanism two 2 and the plasma generating mechanism three 3 in the left-right direction, so that the plasma beams generated by the plasma generating mechanism one 1, the plasma generating mechanism two 2 and the plasma generating mechanism three 3 can fully cover the surface of the workpiece to be cleaned, and the purpose of large-area cleaning is achieved, and the adjacent two plasma beams will not interfere with each other due to the sufficient spacing, so that the device can clean the workpiece to be cleaned in a large area, avoid cleaning dead angles, and ensure good cleaning effect at each position in the large cleaning area; in addition, the front plasma coverage area 101 and the middle plasma coverage area 201 can be adjusted to partially overlap, or the middle plasma coverage area 201 and the rear plasma coverage area 301 can be adjusted to partially overlap, so that the workpiece to be cleaned can be cleaned twice in one conveying process, so that the needs of some workpieces that need to be treated on the surface to different degrees can be met, and since the adjacent two plasma generating mechanisms are spaced apart in the front-rear direction, the surface cleaning of the workpiece to be cleaned in the overlapping area is interval, which is beneficial to protect the workpiece.

[0053] The specific structure of the connecting assembly 4 will be described in detail below.

[0054] The connecting assembly 4 comprises oppositely arranged first and second fixed blocks 401 and 402, which are respectively fixedly connected with the adjacent plasma generating mechanisms. Specifically, for the connecting assembly 4 arranged between the first and second plasma generating mechanisms 1 and 2, the first and second fixed blocks 401 and 402 of the connecting assembly 4 are fixedly connected with the first and second plasma generating mechanisms 1 and 2 respectively; and for the connecting assembly 4 arranged between the second and third plasma generating mechanisms 2 and 3, the first and second fixed blocks 401 and 402 of the connecting assembly 4 are fixedly connected with the second and third plasma generating mechanisms 2 and 3 respectively. The first and second fixed blocks 401 and 402 are slidably connected through a guide rod 404, and the first and second fixed blocks 401 and 402 are provided with an adjusting screw 403 for adjusting the spacing.

[0055] Further, one end of the guide rod 404 is fixedly connected with the second fixed block 402, and the other end of the guide rod 404 is fixedly connected with a limiting block 4041. The limiting block 4041 is a circular plate with a diameter larger than that of the guide rod 404, for limiting the maximum sliding spacing between the first and second fixed blocks 401 and 402. One end of the adjusting screw 403 is coaxially fixedly connected with an end shaft 4031, which is rotatably connected with the first fixed block 401 through a bearing, and the other end of the adjusting screw 403 is fixedly connected with a handle 4032.

[0056] The top end of the first fixed block 401 is fixedly connected with a first plate body 405, and the top end of the second fixed block 402 is fixedly connected with a second plate body 406. The rear side of the first plate body 405 is provided with a scale line 4051 for observing the left-right width of the overlapping area of the front and middle plasma coverage areas 101 and 201, or the left-right width of the overlapping area of the middle and rear plasma coverage areas 201 and 301. The rear side of the first plate body 405 partially abuts against the front side of the second plate body 406.

[0057] The front laser assembly 6 is arranged on the plasma generating mechanism one 1, and is used for forming a boundary line of a front plasma coverage area 101 on the surface of the workpiece to be cleaned by means of laser. Specifically, the front laser assembly 6 includes a first front laser 601 and a second front laser 602. Both the first front laser 601 and the second front laser 602 are linear lasers. The first front laser 601 can form a first front laser mark line 6011 on the surface of the workpiece to be cleaned, and the second front laser 602 can form a second front laser mark line 6021 on the surface of the workpiece to be cleaned. The front plasma coverage area 101 is located between the first front laser mark line 6011 and the second front laser mark line 6021, that is, the first front laser mark line 6011 and the second front laser mark line 6021 are the boundary lines of the front plasma coverage area 101.

[0058] The middle laser assembly 7 is arranged on the plasma generating mechanism two 2, and is used for forming a boundary line of a middle plasma coverage area 201 on the surface of the workpiece to be cleaned by means of laser. The middle laser assembly 7 includes a first middle laser 701 and a second middle laser 702. The first middle laser 701 can form a first middle laser mark line 7011 on the surface of the workpiece to be cleaned, and the second middle laser 702 can form a second middle laser mark line 7021 on the surface of the workpiece to be cleaned. Both the first middle laser 701 and the second middle laser 702 are linear lasers. The middle plasma coverage area 201 is located between the first middle laser mark line 7011 and the second middle laser mark line 7021, that is, the first middle laser mark line 7011 and the second middle laser mark line 7021 are the boundary lines of the middle plasma coverage area 201.

[0059] The rear laser assembly 8 is arranged on the plasma generating mechanism three 3, and is used for forming a boundary line of a rear plasma coverage area 301 on the surface of the workpiece to be cleaned by means of laser. The rear laser assembly 8 includes a first rear laser 801 and a second rear laser 802. The first rear laser 801 can form a first rear laser mark line 8011 on the surface of the workpiece to be cleaned, and the second rear laser 802 can form a second rear laser mark line 8021 on the surface of the workpiece to be cleaned. Both the first rear laser 801 and the second rear laser 802 are linear lasers. The rear plasma coverage area 301 is located between the first rear laser mark line 8011 and the second rear laser mark line 8021, that is, the first rear laser mark line 8011 and the second rear laser mark line 8021 are the boundary lines of the rear plasma coverage area 301.

[0060] The first front laser 601 and the second front laser 602 emit laser beams of the same color, for example, the first front laser 601 and the second front laser 602 emit laser beams of green color; the first middle laser 701 and the second middle laser 702 emit laser beams of the same color, for example, the first middle laser 701 and the second middle laser 702 emit laser beams of red color; the first rear laser 801 and the second rear laser 802 emit laser beams of the same color, for example, the first rear laser 801 and the second rear laser 802 emit laser beams of green color; the first front laser 601 and the first middle laser 701 emit laser beams of different colors, and the first middle laser 701 and the first rear laser 801 emit laser beams of different colors.

[0061] Due to the different colors of the laser beams, the front plasma coverage area 101, the middle plasma coverage area 201 and the rear plasma coverage area 301 can be clearly observed on the surface of the workpiece to be cleaned.

[0062] The front laser assembly 6 further comprises a third front laser 603 disposed on one side of the second front laser 602. The third front laser 603 is a linear laser. As can be seen from the figure, the second front laser 602 and the third front laser 603 are both disposed on the right side of the plasma generating mechanism one 1. The third front laser 603 emits laser beams of a color different from that of the second front laser 602. According to the foregoing, the second front laser 602 emits laser beams of green color, and thus the third front laser 603 can emit laser beams of red color.

[0063] The middle laser assembly 7 further comprises a third middle laser 703 disposed on one side of the first middle laser 701. The third middle laser 703 is a linear laser. As can be seen from the figure, the first middle laser 701 and the third middle laser 703 are both disposed on the left side of the plasma generating mechanism two 2. The third middle laser 703 emits laser beams of a color different from that of the first middle laser 701. According to the foregoing, the first middle laser 701 emits laser beams of red color, and thus the third middle laser 703 can emit laser beams of green color.

[0064] The connecting assembly 4 between the plasma generating mechanism one 1 and the plasma generating mechanism two 2 is provided with a first button switch 9 and a second button switch 10. The third front laser 603 is electrically connected to the power supply through the first button switch 9, and the third middle laser 703 is electrically connected to the power supply through the second button switch 10.

[0065] The first button switch 9 and the second button switch 10 are arranged on the front side of the first plate body 405 of the connecting assembly 4 between the plasma generating mechanism one 1 and the plasma generating mechanism two 2, further, the first plate body 405 is provided with a first through hole 4052 and a second through hole 4053, the first button 901 of the first button switch 9 passes through the first through hole 4052 and protrudes from the rear side of the first plate body 405, the second button 1001 of the second button switch 10 passes through the second through hole 4053 and protrudes from the rear side of the first plate body 405; and the rear end face of the first button 901 and the second button 1001 are both conical faces 902.

[0066] The first button switch 9 and the second button switch 10 are triggered when the current plasma coverage area 101 and the medium plasma coverage area 201 overlap, further, when the current plasma coverage area 101 and the medium plasma coverage area 201 overlap, the first plate body 405 and the second plate body 406 also partially overlap in the front-rear direction, so that the second plate body 406 pushes the first button 901 and the second button 1001 to retract through the action of the conical face 902, so that the third front laser 603 and the third medium laser 703 are connected to the power supply and generate laser, that is, the second plate body 406 on the connecting assembly 4 between the plasma generating mechanism one 1 and the plasma generating mechanism two 2 triggers the first button switch 9 and the second button switch 10.

[0067] The medium laser assembly 7 further comprises a fourth medium laser 704 arranged on one side of the second medium laser 702, the fourth medium laser 704 is a linear laser, as can be seen from the figure, the second medium laser 702 and the fourth medium laser 704 are both arranged on the right side of the plasma generating mechanism two 2, the fourth medium laser 704 emits laser of a color different from that of the second medium laser 702, according to the above, the color of the laser emitted by the second medium laser 702 is red, and the color of the laser emitted by the fourth medium laser 704 can be green.

[0068] The rear laser assembly 8 further comprises a third rear laser 803 arranged on one side of the first rear laser 801, the third rear laser 803 is a linear laser, as can be seen from the figure, the first rear laser 801 and the third rear laser 803 are both arranged on the left side of the plasma generating mechanism three 3, the third rear laser 803 emits laser of a color different from that of the first rear laser 801, according to the above, the color of the laser emitted by the first rear laser 801 is green, and the color of the laser emitted by the third rear laser 803 can be red.

[0069] The third button switch 11 and the fourth button switch 12 are arranged on the connecting assembly 4 between the plasma generating mechanism two 2 and the plasma generating mechanism three 3, the third button switch 11 has a third button 1101, the fourth button switch 12 has a fourth button 1201, the third button switch 11 and the fourth button switch 12 are arranged in the same way as the first button switch 9 and the second button switch 10, the fourth middle laser 704 is electrically connected with the power supply through the third button switch 11, and the third rear laser 803 is electrically connected with the power supply through the fourth button switch 12; specifically, the third button switch 11 and the fourth button switch 12 are arranged on the front side of the first plate body 405 on the connecting assembly 4 between the plasma generating mechanism two 2 and the plasma generating mechanism three 3; the third button switch 11 and the fourth button switch 12 are triggered when the middle plasma coverage area 201 and the rear plasma coverage area 301 overlap, specifically, the second plate body 406 on the connecting assembly 4 between the plasma generating mechanism two 2 and the plasma generating mechanism three 3 triggers the third button switch 11 and the fourth button switch 12 when the middle plasma coverage area 201 and the rear plasma coverage area 301 overlap.

[0070] In the above scheme, when the third front laser 603, the third middle laser 703, the fourth middle laser 704 and the third rear laser 803 are not connected with the power supply, the first front laser 601 and the second front laser 602 form the first front laser marking line 6011 and the second front laser marking line 6021 on the left and right sides of the plasma generating mechanism one 1 respectively, the first middle laser 701 and the second middle laser 702 form the first middle laser marking line 7011 and the second middle laser marking line 7021 on the left and right sides of the plasma generating mechanism two 2 respectively, and the first rear laser 801 and the second rear laser 802 form the first rear laser marking line 8011 and the second rear laser marking line 8021 on the left and right sides of the plasma generating mechanism three 3 respectively, at this time, the distance between the plasma generating mechanism one 1 and the plasma generating mechanism two 2 and the distance between the plasma generating mechanism two 2 and the plasma generating mechanism three 3 are adjusted by the connecting assembly 4, so that the second front laser marking line 6021 and the first middle laser marking line 7011 overlap or partially overlap (since the second front laser marking line 6021 and the first middle laser marking line 7011 are different in color, the overlapping part is neither red nor green, but yellow, so that different plasma coverage areas can be distinguished more clearly), and the second middle laser marking line 7021 and the first rear laser marking line 8011 overlap or partially overlap, so that the front plasma coverage area 101, the middle plasma coverage area 201 and the rear plasma coverage area 301 form a continuous plasma beam processing area in the left-right direction, and the part of the workpiece in the area can be uniformly processed by the plasma beam;

[0071] When it is required to have the front plasma coverage area 101 and the middle plasma coverage area 201 partially overlap, so as to use the overlapping area to increase the processing intensity of the workpiece to be cleaned at the position corresponding to the overlapping area, the distance between the first plasma generating mechanism 1 and the second plasma generating mechanism 2 in the left-right direction can be continuously reduced. When the front plasma coverage area 101 and the middle plasma coverage area 201 have the overlapping area, the third front laser 603 and the third middle laser 703 are connected to the power supply, so that the third front laser 603 and the third middle laser 703 generate the third front laser mark 6031 and the third middle laser mark 7031, respectively. The third front laser mark 6031 partially overlaps with the second front laser mark 6021 to form a first overlapping laser mark 604. Since the third front laser mark 6031 and the second front laser mark 6021 have different colors, the first overlapping laser mark 604 displays yellow. Meanwhile, the first middle laser mark 7011 and the third middle laser mark 7031 partially overlap to form a second overlapping laser mark 705, which also displays yellow. At this time, the yellow first overlapping laser mark 604 and the yellow second overlapping laser mark 705 are the left-right edge marks of the overlapping area, which facilitates the adjustment of the relative position between the overlapping area and the workpiece to be cleaned.

[0072] Similarly, when it is required to have the middle plasma coverage area 201 and the rear plasma coverage area 301 partially overlap, the left-right distance between the second plasma generating mechanism 2 and the third plasma generating mechanism 3 can be reduced to achieve this. After the fourth middle laser 704 is connected to the power supply, the fourth middle laser mark 7041 is generated. After the third rear laser 803 is connected to the power supply, the third rear laser mark 8031 is generated. Meanwhile, the second middle laser mark 7021 and the fourth middle laser mark 7041 partially overlap to generate a yellow third overlapping laser mark 706. The first rear laser mark 8011 and the third rear laser mark 8031 partially overlap to generate a yellow fourth overlapping laser mark 804. At this time, the third overlapping laser mark 706 and the fourth overlapping laser mark 804 are the left-right edge marks of the overlapping area formed by the middle plasma coverage area 201 and the rear plasma coverage area 301.

[0073] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An atmospheric pressure plasma surface treatment device, characterized by, The device comprises a first plasma generating mechanism, a second plasma generating mechanism, a third plasma generating mechanism and a conveying belt, wherein the first plasma generating mechanism, the second plasma generating mechanism and the third plasma generating mechanism are arranged in a tilted manner; The distance between the bottom end of the first plasma generating mechanism, the second plasma generating mechanism and the third plasma generating mechanism and the top surface of the conveying belt is equal, and the conveying belt is used to drive the workpiece to be cleaned to move below the first plasma generating mechanism, the second plasma generating mechanism and the third plasma generating mechanism, so that the surface of the workpiece to be cleaned is cleaned by the multiple plasma beams; The first plasma generating mechanism and the second plasma generating mechanism are connected through a connecting assembly, and the second plasma generating mechanism and the third plasma generating mechanism are connected through a connecting assembly, the connecting assembly is used to adjust the relative position of the first plasma generating mechanism and the second plasma generating mechanism and the relative position of the second plasma generating mechanism and the third plasma generating mechanism in the left-right direction, so that the overlapping area of the front plasma coverage area of the first plasma generating mechanism, the middle plasma coverage area of the second plasma generating mechanism and the rear plasma coverage area of the third plasma generating mechanism in the left-right direction is adjustable.

2. The atmospheric pressure plasma surface treatment device according to claim 1, characterized in that The connecting assembly comprises a first fixed block and a second fixed block arranged oppositely, and the first fixed block and the second fixed block are fixedly connected with the adjacent plasma generating mechanism respectively; The first fixed block and the second fixed block are connected through a guide rod, and the first fixed block and the second fixed block are provided with an adjusting screw rod for adjusting the distance.

3. An atmospheric pressure plasma surface treatment device according to claim 2, wherein, One end of the guide rod is fixedly connected with the second fixed block, and the other end of the guide rod is fixedly connected with a limiting block. One end of the adjusting screw rod is coaxially fixed with an end shaft, and the end shaft is rotatably connected with the first fixed block through a bearing, and the other end of the adjusting screw rod is fixedly connected with a handle.

4. An atmospheric pressure plasma surface treatment device according to claim 2, wherein The top end of the first fixed block is fixedly connected with a first plate body, and the top end of the second fixed block is fixedly connected with a second plate body. The rear side of the first plate body is provided with a scale line. The rear side of the first plate body and the front side of the second plate body are partially in contact.

5. An atmospheric pressure plasma surface treatment device according to claim 4, wherein The first plasma generating mechanism is provided with a front laser assembly, the second plasma generating mechanism is provided with a middle laser assembly, and the third plasma generating mechanism is provided with a rear laser assembly; The front laser assembly comprises a first front laser and a second front laser, the first front laser can form a first front laser mark on the surface of the workpiece to be cleaned, and the second front laser can form a second front laser mark on the surface of the workpiece to be cleaned, and the front plasma coverage area is located between the first front laser mark and the second front laser mark; The middle laser assembly comprises a first middle laser and a second middle laser, the first middle laser can form a first middle laser mark on the surface of the workpiece to be cleaned, and the second middle laser can form a second middle laser mark on the surface of the workpiece to be cleaned, and the middle plasma coverage area is located between the first middle laser mark and the second middle laser mark; The rear laser assembly comprises a first rear laser and a second rear laser, the first rear laser can form a first rear laser mark on the surface of the workpiece to be cleaned, and the second rear laser can form a second rear laser mark on the surface of the workpiece to be cleaned, and the rear plasma coverage area is located between the first rear laser mark and the second rear laser mark. The first front laser and the second front laser emit laser beams of the same color, the first middle laser and the second middle laser emit laser beams of the same color, and the first rear laser and the second rear laser emit laser beams of the same color; the first front laser and the first middle laser emit laser beams of different colors, and the first middle laser and the first rear laser emit laser beams of different colors.

6. An atmospheric pressure plasma surface treatment device according to claim 5, wherein The front laser assembly further comprises a third front laser arranged on one side of the second front laser, and the third front laser emits laser beams of a color different from that of the second front laser; The middle laser assembly further comprises a third middle laser arranged on one side of the first middle laser, and the third middle laser emits laser beams of a color different from that of the first middle laser; The connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism is provided with a first button switch and a second button switch, the third front laser is electrically connected to the power supply through the first button switch, and the third middle laser is electrically connected to the power supply through the second button switch; The first button switch and the second button switch are triggered when the front plasma coverage area and the middle plasma coverage area overlap.

7. An atmospheric pressure plasma surface treatment device according to claim 6, wherein The middle laser assembly further comprises a fourth middle laser arranged on one side of the second middle laser, and the fourth middle laser emits laser beams of a color different from that of the second middle laser; The rear laser assembly further comprises a third rear laser arranged on one side of the first rear laser, and the third rear laser emits laser beams of a color different from that of the first rear laser; The connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism is provided with a third button switch and a fourth button switch, the fourth middle laser is electrically connected to the power supply through the third button switch, and the third rear laser is electrically connected to the power supply through the fourth button switch; The third button switch and the fourth button switch are triggered when the middle plasma coverage area and the rear plasma coverage area overlap.

8. An atmospheric pressure plasma surface treatment device according to claim 7, wherein The first button switch and the second button switch are arranged on the front side of the first plate body of the connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism; The third button switch and the fourth button switch are arranged on the front side of the first plate body of the connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism; When the front plasma coverage area and the middle plasma coverage area overlap, the second plate body of the connecting assembly between the first plasma generating mechanism and the second plasma generating mechanism triggers the first button switch and the second button switch; When the middle plasma coverage area and the rear plasma coverage area overlap, the second plate body of the connecting assembly between the second plasma generating mechanism and the third plasma generating mechanism triggers the third button switch and the fourth button switch.

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