Atmospheric pressure plasma surface treatment device

Abstract

The invention relates to the technical field of workpiece surface cleaning treatment, in particular to an atmospheric pressure plasma surface treatment device which comprises a first plasma generation mechanism, a second plasma generation mechanism, a third plasma generation mechanism and a conveying belt. The mounting positions of the plasma generation mechanism I, the plasma generation mechanism II and the plasma generation mechanism III are obliquely arranged; the distances between the bottom ends of the first plasma generation mechanism, the second plasma generation mechanism and the third plasma generation mechanism and the top face of the conveying belt are equal. The plasma cleaning device is matched with a conveying belt, so that multiple plasma beams can completely cover the surface of a workpiece to be cleaned, meanwhile, two adjacent plasma beams do not interfere with each other, the whole device can clean the workpiece to be cleaned in a large area, cleaning dead corners can be avoided, and the cleaning efficiency is improved. And it is guaranteed that each position under the large cleaning area has a good cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of workpiece surface cleaning technology, specifically to an atmospheric pressure plasma surface treatment device. Background Technology

[0002] Plasma is the fourth state of matter, composed of a large number of free electrons, ions, and neutral particles, and is electrically neutral overall. Under high temperature, high pressure, or an electric field, gas molecules ionize to form plasma. Its active particles (such as electrons, ions, and free radicals) interact with the material surface through physical and chemical processes. Specifically, the physical interaction refers to the impact of high-speed particles on the surface, achieving fine cleaning; the chemical interaction refers to the reaction of active particles with surface substances, generating new functional groups (such as hydroxyl, carboxyl, and amino groups), changing the surface chemical composition, thereby achieving the purpose of cleaning the workpiece surface.

[0003] The core of a plasma surface cleaning device lies in a plasma generation mechanism, which can generate plasma for cleaning the surface of a workpiece. For example, the invention patent with publication number CN116422650B discloses a plasma cleaning device that uses multiple plasma cleaning nozzles (i.e., plasma generation mechanism) to clean the workpiece.

[0004] While the patented technical solution can achieve large-area plasma cleaning using multiple plasma cleaning nozzles, it suffers from several drawbacks. First, if the distance between the two plasma beams emitted from adjacent nozzles is too large, resulting in gaps, it cannot achieve comprehensive cleaning of the workpiece surface. Second, due to the nature of plasma, if the distance between adjacent plasma beams is too small, they will interfere with each other, causing issues such as electric field distortion or magnetic field coupling. In such cases, the workpiece surface at the location of electric field distortion or magnetic field coupling will not achieve the desired surface cleaning effect. In short, current plasma cleaning devices cannot guarantee a cleaning effect on workpieces with a large cleaning area. Summary of the Invention

[0005] The purpose of this invention is to provide an atmospheric pressure plasma surface treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An atmospheric pressure plasma surface treatment device includes a plasma generating mechanism 1, a plasma generating mechanism 2, a plasma generating mechanism 3, and a conveyor belt, wherein the plasma generating mechanism 1, plasma generating mechanism 2, and plasma generating mechanism 3 are installed at an inclined position. The bottom ends of plasma generating mechanism 1, plasma generating mechanism 2 and plasma generating mechanism 3 are equidistant from the top surface of the conveyor belt. The conveyor belt is used to move the workpiece to be cleaned from below plasma generating mechanism 1, plasma generating mechanism 2 and plasma generating mechanism 3, so as to use multiple plasma beams to perform large-area cleaning operations on the surface of the workpiece to be cleaned. Plasma generating mechanism one and plasma generating mechanism two, as well as plasma generating mechanism two and plasma generating mechanism three, are connected by a connecting component. The connecting component is used to adjust the relative positions of plasma generating mechanism one and plasma generating mechanism two, as well as plasma generating mechanism two and plasma generating mechanism three, in the left-right direction, so that the overlapping area of ​​the front plasma coverage area of ​​plasma generating mechanism one, the middle plasma coverage area of ​​plasma generating mechanism two, and the rear plasma coverage area of ​​plasma generating mechanism three in the left-right direction is adjustable.

[0007] Preferably, the connecting assembly includes a first fixing block and a second fixing block disposed opposite to each other, the first fixing block and the second fixing block being fixedly connected to their respective adjacent plasma generating mechanisms; The first fixing block and the second fixing block are slidably connected by a guide rod, and the first fixing block and the second fixing block are provided with adjusting screws for adjusting the spacing.

[0008] Preferably, one end of the guide rod is fixedly connected to the second fixing block, and the other end of the guide rod is fixed with a limit block; One end of the adjusting screw is coaxially fixed with an end shaft, which is rotatably connected to the first fixed block via a bearing. The other end of the adjusting screw is fixed with a handle.

[0009] Preferably, the top end of the first fixing block is fixedly connected to the first plate, and the top end of the second fixing block is fixedly connected to the second plate. The rear side of the first plate has scale lines; The rear side of the first plate is in contact with the front side of the second plate.

[0010] Preferably, a front laser component is provided on plasma generation mechanism one, a middle laser component is provided on plasma generation mechanism two, and a rear laser component is provided on plasma generation mechanism three. The front laser assembly includes 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. The front plasma coverage area is located between the first front laser mark and the second front laser mark. The medium laser assembly includes a first medium laser capable of forming a first medium laser mark on the surface of the workpiece to be cleaned and a second medium laser capable of forming a second medium laser mark on the surface of the workpiece to be cleaned, wherein the medium plasma coverage area is located between the first medium laser mark and the second medium laser mark; The post-laser assembly includes a first post-laser capable of forming a first post-laser mark on the surface of the workpiece to be cleaned and a second post-laser capable of forming a second post-laser mark on the surface of the workpiece to be cleaned, wherein the post-plasma coverage area is located between the first post-laser mark and the second post-laser mark; Among them, the lasers emitted by the first front laser and the second front laser are the same color, the lasers emitted by the first middle laser and the second middle laser are the same color, and the lasers emitted by the first rear laser and the second rear laser are the same color; the lasers emitted by the first front laser and the first middle laser are different colors, and the lasers emitted by the first middle laser and the first rear laser are different colors.

[0011] Preferably, the front laser assembly further includes a third front laser disposed on one side of the second front laser, the third front laser emitting a different color of laser light than the second front laser. The intermediate laser assembly also includes a third laser located on one side of the first laser, the third laser emitting a different color of laser light than the first laser; A first button switch and a second button switch are provided on the connecting component between plasma generation mechanism one and plasma generation mechanism two. 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. When the current plasma coverage area and the intermediate plasma coverage area overlap, the first and second button switches are triggered.

[0012] Preferably, the intermediate laser assembly further includes a fourth intermediate laser disposed on one side of the second intermediate laser, the fourth intermediate laser emitting a different color of laser light than the second intermediate laser; The rear laser assembly also includes a third rear laser disposed on one side of the first rear laser, the third rear laser emitting a different color of laser light than the first rear laser; A third button switch and a fourth button switch are provided on the connecting component between plasma generation mechanism two and plasma generation mechanism three. The fourth 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. When the plasma coverage area and the rear plasma coverage area overlap, the third and fourth button switches are triggered.

[0013] Preferably, the first button switch and the second button switch are disposed on the front side of the first plate on the connecting assembly between the plasma generating mechanism one and the plasma generating mechanism two; The third and fourth push-button switches are located on the front side of the first plate on the connecting assembly between plasma generation mechanism two and plasma generation mechanism three. When the current plasma coverage area and the medium plasma coverage area overlap, the second plate on the connecting assembly between plasma generation mechanism one and plasma generation mechanism two triggers the first button switch and the second button switch. When the plasma coverage area and the rear plasma coverage area overlap, the second plate on the connecting assembly between plasma generation mechanism 2 and plasma generation mechanism 3 triggers the third and fourth button switches.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves this by tilting the installation positions of plasma generating mechanisms one, two, and three, and maintaining a distance between them in the front-to-back direction. Furthermore, a connecting assembly allows for adjustable distances between these mechanisms in the left-to-right direction. Combined with a conveyor belt, this ensures that the plasma beams generated by the three mechanisms fully cover the surface of the workpiece to be cleaned, achieving large-area cleaning. Simultaneously, the sufficient distance between adjacent plasma beams prevents combustion. The absence of mutual interference allows the entire device to clean large areas of the workpiece while avoiding cleaning dead spots, ensuring excellent cleaning results at every location within the large cleaning area. Furthermore, the front and middle plasma coverage areas can be partially overlapped, or the middle and rear plasma coverage areas can be partially overlapped, allowing the workpiece to be cleaned twice in a single transport process at the overlapping area. This meets the needs of workpieces requiring different degrees of surface treatment. Moreover, because adjacent plasma generation mechanisms are spaced in the front-to-back direction, there is an interval between the surface cleaning of the overlapping area of ​​the workpiece, which helps protect the workpiece. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3This is a top view schematic diagram of the plasma generation mechanism 1, plasma generation mechanism 2, plasma generation mechanism 3 and conveyor belt of the present invention; Figure 4 This is a top view of the plasma generation mechanism of the present invention. Figure 5 This is a top view of the plasma generation mechanism 2 of the present invention; Figure 6 This is a top view of the plasma generation mechanism three of the present invention. Figure 7 This is a three-dimensional structural diagram of the connecting component of the present invention; Figure 8 This is a schematic diagram of the structure of the first plate of the present invention; Figure 9 This is a schematic diagram of the structure of the first push-button switch and the second push-button switch of the present invention; Figure 10 This is a schematic diagram of the structure of the third and fourth push-button switches of the present invention.

[0016] In the diagram: 1. Plasma generation mechanism one; 101. Front plasma coverage area; 2. Plasma generation mechanism two; 201. Middle plasma coverage area; 3. Plasma generation mechanism three; 301. Rear plasma coverage area; 4. Connecting assembly; 401. First fixing block; 402. Second fixing block; 403. Adjusting screw; 4031. End shaft; 4032. Handle; 404. Guide rod; 4041. Limiting block; 405. First plate; 4051. Scale line; 4052. First through hole; 4053. Second through hole; 406. Second plate; 5. Conveyor belt; 6. Front laser assembly; 601. First front laser; 6011. First front laser mark; 602. Second front laser; 6021. Second front laser mark; 603. Third front laser; 6031. Third front laser mark; 604. First overlapping laser mark; 7. Middle laser assembly Components; 701, First laser; 7011, First laser marking; 702, Second laser; 7021, Second laser marking; 703, Third laser; 7031, Third laser marking; 704, Fourth laser; 7041, Fourth laser marking; 705, Second overlapping laser marking; 706, Third overlapping laser marking; 8, Rear laser assembly; 801, First rear laser; 8011, First rear... Laser marking; 802, Second rear laser; 8021, Second rear laser marking; 803, Third rear laser; 8031, Third rear laser marking; 804, Fourth overlapping laser marking; 9, First button switch; 901, First button; 902, Conical surface; 10, Second button switch; 1001, Second button; 11, Third button switch; 1101, Third button; 12, Fourth button switch; 1201, Fourth button. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-10 The present invention provides a technical solution: An atmospheric pressure plasma surface treatment device includes a plasma generation mechanism 1, a plasma generation mechanism 2, a plasma generation mechanism 3, and a conveyor belt 5. The plasma generation mechanisms 1, 2, and 3 are installed at an angle. Figures 1-3As shown, plasma generating mechanism 2 is located to the right rear of plasma generating mechanism 1, and plasma generating mechanism 3 is located to the right rear of plasma generating mechanism 2. Furthermore, there is only one plasma generating mechanism 1 and one plasma generating mechanism 3, while the number of plasma generating mechanisms 2 can be adjusted according to the actual situation. In this embodiment, one plasma generating mechanism 2 is used as an example for explanation. Plasma generating mechanism 1, plasma generating mechanism 2, and plasma generating mechanism 3 are arranged sequentially in the direction of the right rear, forming an inclined plasma generating mechanism array.

[0019] The bottom ends of plasma generating mechanisms 1, 2, and 3 are equidistant from the top surface of the conveyor belt 5. The conveyor belt 5 is used to move the workpiece to be cleaned from below plasma generating mechanisms 1, 2, and 3, so as to perform large-area cleaning operations on the surface of the workpiece using multiple plasma beams. In this embodiment, the conveying direction of the conveyor belt 5 is taken as forward, that is, the workpiece to be cleaned is conveyed forward by the conveyor belt 5. During the movement, the plasma beams generated by plasma generating mechanisms 1, 2, and 3 will be sprayed onto the surface of the workpiece to be cleaned, thereby achieving the treatment of the surface of the workpiece to be cleaned.

[0020] Plasma generating mechanism 1 and plasma generating mechanism 2, as well as plasma generating mechanism 2 and plasma generating mechanism 3, are connected by connecting component 4. Connecting component 4 is used to adjust the relative positions of plasma generating mechanism 1 and plasma generating mechanism 2, as well as plasma generating mechanism 2 and plasma generating mechanism 3, in the left-right direction, so that the overlapping area of ​​the front plasma coverage area 101 of plasma generating mechanism 1, the middle plasma coverage area 201 of plasma generating mechanism 2, and the rear plasma coverage area 301 of plasma generating mechanism 3 in the left-right direction is adjustable. Among them, the front plasma coverage area 101 refers to the area on the surface of the workpiece to be cleaned by the plasma beam generated by plasma generating mechanism 1 during the conveyor belt 5. Similarly, 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 by plasma generating mechanism 2 and plasma generating mechanism 3, respectively.

[0021] In this technical solution, by placing plasma generating mechanism 2 to the right rear of plasma generating mechanism 1 and plasma generating mechanism 3 to the right rear of plasma generating mechanism 2, a distance is maintained between plasma generating mechanisms 1 and 2, and between 2 and 3 in the front-to-back direction. Then, with the connecting component 4, the distance between plasma generating mechanisms 1 and 2, and between 2 and 3, in the left-to-right direction is adjustable. Thus, in conjunction with the conveyor belt 5, the plasma beams generated by plasma generating mechanisms 1, 2, and 3 can fully cover the surface of the workpiece to be cleaned, achieving large-area cleaning. Simultaneously, the distance between adjacent plasma beams is also maintained. Sufficient spacing prevents mutual interference, allowing the entire device to clean large areas of the workpiece while avoiding cleaning dead spots, ensuring excellent cleaning results at every location within the large cleaning area. Furthermore, 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, allowing the workpiece to be cleaned twice in a single transport process at the overlapping area. This meets the needs of workpieces requiring different degrees of surface treatment. Moreover, because adjacent plasma generation mechanisms are spaced in the front-to-back direction, there is a gap in the surface cleaning of the overlapping area of ​​the workpiece, which helps protect the workpiece.

[0022] The specific structure of connecting component 4 will be described in detail below.

[0023] The connecting component 4 includes a first fixing block 401 and a second fixing block 402 disposed opposite to each other. The first fixing block 401 and the second fixing block 402 are respectively fixedly connected to their respective adjacent plasma generating mechanisms. Specifically, as shown in the figure, for the connecting component 4 disposed between plasma generating mechanism 1 and plasma generating mechanism 2, the first fixing block 401 and the second fixing block 402 of the connecting component 4 are fixedly connected to plasma generating mechanism 1 and plasma generating mechanism 2, respectively; while for the connecting component 4 disposed between plasma generating mechanism 2 and plasma generating mechanism 3, the first fixing block 401 and the second fixing block 402 of the connecting component 4 are fixedly connected to plasma generating mechanism 2 and plasma generating mechanism 3, respectively; the first fixing block 401 and the second fixing block 402 are slidably connected by a guide rod 404, and the first fixing block 401 and the second fixing block 402 are provided with adjusting screws 403 for adjusting the spacing.

[0024] Furthermore, one end of the guide rod 404 is fixedly connected to the second fixed block 402, and the other end of the guide rod 404 is fixedly fixed to a limit block 4041; the limit block 4041 is a circular plate with a diameter larger than that of the guide rod 404, used to limit the maximum sliding distance between the first fixed block 401 and the second fixed block 402; one end of the adjusting screw 403 is coaxially fixed to an end shaft 4031, the end shaft 4031 is rotatably connected to the first fixed block 401 through a bearing, and the other end of the adjusting screw 403 is fixed to a handle 4032.

[0025] The top of the first fixing block 401 is fixedly connected to the first plate 405, and the top of the second fixing block 402 is fixedly connected to the second plate 406; the rear side of the first plate 405 is provided with a scale line 4051, which is used to observe the left and right width of the overlapping area of ​​the front plasma coverage area 101 and the middle plasma coverage area 201, or to observe the left and right width of the overlapping area of ​​the middle plasma coverage area 201 and the rear plasma coverage area 301; the rear side of the first plate 405 is in contact with the front side of the second plate 406.

[0026] The plasma generation mechanism 1 is equipped with a front laser assembly 6. The front laser assembly 6 is used to form the boundary line of the front plasma coverage area 101 on the surface of the workpiece to be cleaned by relying on the 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 line lasers. The first front laser 601 can form a first front laser mark 6011 on the surface of the workpiece to be cleaned, and the second front laser 602 can form a second front laser mark 6021 on the surface of the workpiece to be cleaned. The front plasma coverage area 101 is located between the first front laser mark 6011 and the second front laser mark 6021. That is, the first front laser mark 6011 and the second front laser mark 6021 are the boundary lines of the front plasma coverage area 101.

[0027] The plasma generation mechanism 2 is equipped with a medium laser component 7. The medium laser component 7 is used to form the boundary line of the medium plasma coverage area 201 on the surface of the workpiece to be cleaned by relying on the laser. The medium laser component 7 includes a first medium laser 701 that can form a first medium laser mark 7011 on the surface of the workpiece to be cleaned and a second medium laser 702 that can form a second medium laser mark 7021 on the surface of the workpiece to be cleaned. Both the first medium laser 701 and the second medium laser 702 are line lasers. The medium plasma coverage area 201 is located between the first medium laser mark 7011 and the second medium laser mark 7021. That is, the first medium laser mark 7011 and the second medium laser mark 7021 are the boundary line of the medium plasma coverage area 201.

[0028] The plasma generation mechanism 3 is equipped with a rear laser assembly 8. The rear laser assembly 8 is used to form the boundary line of the rear plasma coverage area 301 on the surface of the workpiece to be cleaned by relying on the laser. The rear laser assembly 8 includes a first rear laser 801 that can form a first rear laser mark 8011 on the surface of the workpiece to be cleaned and a second rear laser 802 that can form a second rear laser mark 8021 on the surface of the workpiece to be cleaned. Both the first rear laser 801 and the second rear laser 802 are line lasers. The rear plasma coverage area 301 is located between the first rear laser mark 8011 and the second rear laser mark 8021. That is, the boundary line of the rear plasma coverage area 301 is the first rear laser mark 8011 and the second rear laser mark 8021.

[0029] Among them, the laser emitted by the first front laser 601 and the second front laser 602 is the same color, for example, the laser emitted by the first front laser 601 and the second front laser 602 is green; the laser emitted by the first middle laser 701 and the second middle laser 702 is the same color, for example, the laser emitted by the first middle laser 701 and the second middle laser 702 is red; the laser emitted by the first rear laser 801 and the second rear laser 802 is the same color, for example, the laser emitted by the first rear laser 801 and the second rear laser 802 is green; the laser emitted by the first front laser 601 and the first middle laser 701 are different colors, and the laser emitted by the first middle laser 701 and the first rear laser 801 are different colors.

[0030] Because of the different laser colors, 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.

[0031] The front laser assembly 6 also includes a third front laser 603 disposed on one side of the second front laser 602. The third front laser 603 is a line laser. As can be seen from the figure, both the second front laser 602 and the third front laser 603 are disposed on the right side of the plasma generation mechanism 1. The laser color emitted by the third front laser 603 is different from that of the second front laser 602. According to the previous text, the laser color emitted by the second front laser 602 is green, so the laser color emitted by the third front laser 603 can be red.

[0032] The intermediate laser assembly 7 also includes a third intermediate laser 703 disposed on one side of the first intermediate laser 701. The third intermediate laser 703 is a line laser. As can be seen from the figure, both the first intermediate laser 701 and the third intermediate laser 703 are disposed on the left side of the plasma generation mechanism 2. The laser color emitted by the third intermediate laser 703 is different from that of the first intermediate laser 701. According to the above, the laser color emitted by the first intermediate laser 701 is red, so the laser color emitted by the third intermediate laser 703 can be green.

[0033] A first button switch 9 and a second button switch 10 are provided on the connection component 4 between plasma generation mechanism 1 and plasma generation mechanism 2. 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.

[0034] The first button switch 9 and the second button switch 10 are disposed on the front side of the first plate 405 on the connecting assembly 4 between the plasma generating mechanism 1 and the plasma generating mechanism 2. Further, the first plate 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 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 405. Moreover, the rear end faces of the first button 901 and the second button 1001 are both tapered surfaces 902.

[0035] When the current plasma coverage area 101 and the middle plasma coverage area 201 overlap, the first button switch 9 and the second button switch 10 are triggered. Furthermore, when the current plasma coverage area 101 and the middle plasma coverage area 201 overlap, the first plate 405 and the second plate 406 will also partially overlap in the front-back direction. As a result, the second plate 406 will push the first button 901 and the second button 1001 to retract through the action of the conical surface 902, thereby connecting the third front laser 603 and the third middle laser 703 to the power supply and generating lasers. That is, the second plate 406 on the connecting component 4 between the plasma generation mechanism 1 and the plasma generation mechanism 2 triggers the first button switch 9 and the second button switch 10.

[0036] The intermediate laser assembly 7 also includes a fourth intermediate laser 704 disposed on one side of the second intermediate laser 702. The fourth intermediate laser 704 is a line laser. As can be seen from the figure, both the second intermediate laser 702 and the fourth intermediate laser 704 are disposed on the right side of the plasma generation mechanism 2. The laser color emitted by the fourth intermediate laser 704 is different from that of the second intermediate laser 702. According to the above, the laser color emitted by the second intermediate laser 702 is red, so the laser color emitted by the fourth intermediate laser 704 can be green.

[0037] The rear laser assembly 8 also includes a third rear laser 803 disposed on one side of the first rear laser 801. The third rear laser 803 is a line laser. As can be seen from the figure, both the first rear laser 801 and the third rear laser 803 are disposed on the left side of the plasma generation mechanism 3. The laser color emitted by the third rear laser 803 is different from that of the first rear laser 801. According to the above, the laser color emitted by the first rear laser 801 is green, so the laser color emitted by the third rear laser 803 can be red.

[0038] A third button switch 11 and a fourth button switch 12 are provided on the connecting assembly 4 between plasma generation mechanism 2 and plasma generation mechanism 3. The third button switch 11 has a third button 1101, and the fourth button switch 12 has a fourth button 1201. The installation method of the third button switch 11 and the fourth button switch 12 is the same as the installation method of the first button switch 9 and the second button switch 10. The fourth laser 704 is electrically connected to the power supply through the third button switch 11, and the third rear laser 803 is electrically connected to the power supply through the fourth button switch 12. Specifically, the third button switch 11 and the fourth button switch 12 are connected to the power supply through the third button switch 11 and the fourth button switch 12. The four-button switch 12 is located on the front side of the first plate 405 on the connecting assembly 4 between the plasma generating mechanism 2 and the plasma generating mechanism 3. When the plasma coverage area 201 and the rear plasma coverage area 301 overlap, the third button switch 11 and the fourth button switch 12 are triggered. Specifically, when the plasma coverage area 201 and the rear plasma coverage area 301 overlap, the second plate 406 on the connecting assembly 4 between the plasma generating mechanism 2 and the plasma generating mechanism 3 triggers the third button switch 11 and the fourth button switch 12.

[0039] 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 to the power supply, the first front laser 601 and the second front laser 602 form the first front laser mark 6011 and the second front laser mark 6021 on the left and right sides of the plasma generation mechanism 1, respectively; the first middle laser 701 and the second middle laser 702 form the first middle laser mark 7011 and the second middle laser mark 7021 on the left and right sides of the plasma generation mechanism 2, respectively; and the first rear laser 801 and the second rear laser 802 form the first rear laser mark 8011 and the second rear laser mark 8021 on the left and right sides of the plasma generation mechanism 3, respectively. At this time, the plasma generation mechanism 1 and the plasma generation mechanism 2 are adjusted using the connecting component 4. The distances between plasma generation mechanisms 2 and 3 are such that the second front laser mark 6021 and the first middle laser mark 7011 overlap or partially overlap (since the second front laser mark 6021 and the first middle laser mark 7011 are different colors, the overlapping part is neither red nor green, but yellow, so that different plasma coverage areas can be more clearly distinguished), and the second middle laser mark 7021 and the first rear laser mark 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 treatment area in the left and right direction, and the part of the workpiece in this area can be uniformly treated by the plasma beam; When it is necessary for the front plasma coverage area 101 and the middle plasma coverage area 201 to partially overlap, so as to utilize this overlapping area to increase the processing intensity of the workpiece to be cleaned at the overlapping area, the distance between the plasma generation mechanism 1 and the plasma generation mechanism 2 in the left-right direction can be further reduced. Since the front plasma coverage area 101 and the middle plasma coverage area 201 overlap, the third front laser 603 and the third middle laser 703 will be connected to the power supply. Therefore, the third front laser 603 and the third middle laser 703 will respectively generate the third front laser mark 6031 and the third middle laser mark 7031. Laser marking 6031 will partially overlap with the second front laser marking 6021 to form the first overlapping laser marking 604. Since the third front laser marking 6031 and the second front laser marking 6021 are different colors, the first overlapping laser marking 604 will be yellow. At the same time, the first middle laser marking 7011 and the third middle laser marking 7031 will partially overlap to form the second overlapping laser marking 705, and the second overlapping laser marking 705 will also be yellow. At this time, the yellow first overlapping laser marking 604 and the yellow second overlapping laser marking 705 are the left and right edge markings of the overlapping area, which makes it easier for the staff to adjust the relative position of the overlapping area and the workpiece to be cleaned. Similarly, when it is necessary for the middle plasma coverage area 201 and the rear plasma coverage area 301 to have a partial overlap, this can be achieved by reducing the left-right distance between the plasma generation mechanism 2 and the plasma generation mechanism 3. Furthermore, when the fourth laser 704 is powered on, it will generate a fourth laser mark 7041, and when the third rear laser 803 is powered on, it will generate a third rear laser mark 8031. At the same time, the second laser mark 7021 and the fourth laser mark 7041 partially overlap to generate a yellow third overlapping laser mark 706, and 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 and right edge marks of the overlapping area formed by the middle plasma coverage area 201 and the rear plasma coverage area 301.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An atmospheric pressure plasma surface treatment device, characterized in that, It includes plasma generating mechanism one, plasma generating mechanism two, plasma generating mechanism three and a conveyor belt, wherein the installation positions of plasma generating mechanism one, plasma generating mechanism two and plasma generating mechanism three are inclined. The bottom ends of plasma generating mechanism 1, plasma generating mechanism 2 and plasma generating mechanism 3 are equidistant from the top surface of the conveyor belt. The conveyor belt is used to move the workpiece to be cleaned from below plasma generating mechanism 1, plasma generating mechanism 2 and plasma generating mechanism 3, so as to use multiple plasma beams to perform large-area cleaning operations on the surface of the workpiece to be cleaned. Plasma generating mechanism one and plasma generating mechanism two, as well as plasma generating mechanism two and plasma generating mechanism three, are connected by a connecting component. The connecting component is used to adjust the relative positions of plasma generating mechanism one and plasma generating mechanism two, as well as plasma generating mechanism two and plasma generating mechanism three, in the left-right direction, so that the overlapping area of ​​the front plasma coverage area of ​​plasma generating mechanism one, the middle plasma coverage area of ​​plasma generating mechanism two, and the rear plasma coverage area of ​​plasma generating mechanism three 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 includes a first fixing block and a second fixing block arranged opposite to each other, and the first fixing block and the second fixing block are respectively fixedly connected to their respective adjacent plasma generating mechanisms; The first fixing block and the second fixing block are slidably connected by a guide rod, and the first fixing block and the second fixing block are provided with adjusting screws for adjusting the spacing.

3. The atmospheric pressure plasma surface treatment device according to claim 2, characterized in that, One end of the guide rod is fixedly connected to the second fixed block, and the other end of the guide rod is fixed with a limit block; One end of the adjusting screw is coaxially fixed with an end shaft, which is rotatably connected to the first fixed block via a bearing. The other end of the adjusting screw is fixed with a handle.

4. The atmospheric pressure plasma surface treatment device according to claim 2, characterized in that, The top of the first fixing block is fixedly connected to the first plate, and the top of the second fixing block is fixedly connected to the second plate. The rear side of the first plate has scale lines; The rear side of the first plate is in contact with the front side of the second plate.

5. The atmospheric pressure plasma surface treatment apparatus according to claim 4, characterized in that, A front laser assembly is provided on plasma generation mechanism one, a middle laser assembly is provided on plasma generation mechanism two, and a rear laser assembly is provided on plasma generation mechanism three. The front laser assembly includes 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. The front plasma coverage area is located between the first front laser mark and the second front laser mark. The medium laser assembly includes a first medium laser capable of forming a first medium laser mark on the surface of the workpiece to be cleaned and a second medium laser capable of forming a second medium laser mark on the surface of the workpiece to be cleaned, wherein the medium plasma coverage area is located between the first medium laser mark and the second medium laser mark; The post-laser assembly includes a first post-laser capable of forming a first post-laser mark on the surface of the workpiece to be cleaned and a second post-laser capable of forming a second post-laser mark on the surface of the workpiece to be cleaned, wherein the post-plasma coverage area is located between the first post-laser mark and the second post-laser mark; Among them, the lasers emitted by the first front laser and the second front laser are the same color, the lasers emitted by the first middle laser and the second middle laser are the same color, and the lasers emitted by the first rear laser and the second rear laser are the same color; the lasers emitted by the first front laser and the first middle laser are different colors, and the lasers emitted by the first middle laser and the first rear laser are different colors.

6. The atmospheric pressure plasma surface treatment apparatus according to claim 5, characterized in that, The front laser assembly also includes a third front laser disposed on one side of the second front laser, the third front laser emitting a different color of laser light than the second front laser. The intermediate laser assembly also includes a third laser located on one side of the first laser, the third laser emitting a different color of laser light than the first laser; A first button switch and a second button switch are provided on the connecting component between plasma generation mechanism one and plasma generation mechanism two. 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. When the current plasma coverage area and the intermediate plasma coverage area overlap, the first and second button switches are triggered.

7. The atmospheric pressure plasma surface treatment apparatus according to claim 6, characterized in that, The intermediate laser assembly also includes a fourth laser located on one side of the second laser, the fourth laser emitting a different color of laser light than the second laser. The rear laser assembly also includes a third rear laser disposed on one side of the first rear laser, the third rear laser emitting a different color of laser light than the first rear laser; A third button switch and a fourth button switch are provided on the connecting component between plasma generation mechanism two and plasma generation mechanism three. The fourth 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. When the plasma coverage area and the rear plasma coverage area overlap, the third and fourth button switches are triggered.

8. The atmospheric pressure plasma surface treatment apparatus according to claim 7, characterized in that, The first button switch and the second button switch are disposed on the front side of the first plate on the connecting assembly between plasma generation mechanism one and plasma generation mechanism two. The third and fourth push-button switches are located on the front side of the first plate on the connecting assembly between plasma generation mechanism two and plasma generation mechanism three. When the current plasma coverage area and the medium plasma coverage area overlap, the second plate on the connecting assembly between plasma generation mechanism one and plasma generation mechanism two triggers the first button switch and the second button switch. When the plasma coverage area and the rear plasma coverage area overlap, the second plate on the connecting assembly between plasma generation mechanism 2 and plasma generation mechanism 3 triggers the third and fourth button switches.

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