A screen cleaning device

Abstract

The present application discloses a screen plate cleaning device, which relates to the technical field of printing auxiliary facilities and includes a cleaning table. The cleaning table is connected with a spraying mechanism. The cleaning table is rotatably connected with a plurality of transmission rollers. The cleaning table is connected with an intermittent component for driving each transmission roller to rotate intermittently. The cleaning table is connected with a multi-stage cleaning mechanism. The cleaning table is slidably connected with a push plate for abutting against the screen plate. The push plate corresponds to the multi-stage cleaning mechanism. The cleaning table is connected with a linkage mechanism for driving the push plate to slide in a direction close to or away from the spraying mechanism by means of the transmission rollers. In the present application, the multi-stage cleaning mechanism performs multi-stage cleaning on the screen plate, improving the cleaning effect of the screen plate. During the rotation of the transmission rollers, the linkage mechanism abuts against the screen plate and drives the screen plate to slide in a direction away from the spraying mechanism, preventing the screen plate from stopping moving due to excessive friction between the screen plate and the multi-stage cleaning mechanism, facilitating the movement of the screen plate on the transmission rollers, and improving the cleaning efficiency of the screen plate.

Description

Technical Field

[0001] This application relates to the technical field of printing supporting facilities, and particularly relates to a screen plate cleaning device. Background Art

[0002] Screen printing is a common printing process, and the screen plate used in screen printing is the main part that determines the screen printing effect. In the process of making the screen plate, a layer of resin needs to be coated on the iron wire, then a specific shape is melted out on the resin with a chemical agent, and finally the waste residue of the melted part is washed away to make the screen plate.

[0003] During the cleaning process of the existing screen plate cleaning, due to different components of stains on the surface of the screen plate, some stains are cleaned with a relatively light cleaning force, and some stains need to be cleaned with a relatively heavy cleaning force. Therefore, a multi-stage cleaning mechanism is required to clean the screen plate separately; the multi-stage cleaning mechanism uses different cleaning forces to clean the screen plate. The cleaning force in the multi-stage cleaning mechanism is too large, and the friction between the screen plate and the multi-stage cleaning mechanism is relatively large, making it difficult for the screen plate to move, thus affecting the cleaning efficiency of the screen plate, which needs to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a screen plate cleaning device to improve the cleaning efficiency of the screen plate.

[0005] A screen plate cleaning device provided by this application adopts the following technical solutions: It includes a cleaning table, the cleaning table is connected with a spraying mechanism, the cleaning table is rotatably connected with a plurality of transmission rollers, the cleaning table is connected with an intermittent component for driving each transmission roller to rotate intermittently, the cleaning table is connected with a multi-stage cleaning mechanism, the cleaning table is slidably connected with a push plate for abutting against the screen plate, the push plate corresponds to the multi-stage cleaning mechanism, and the cleaning table is connected with a linkage mechanism for driving the push plate to slide in a direction close to or away from the spraying mechanism through the transmission rollers.

[0006] By adopting the above technical solutions, a plurality of screen plates are sequentially placed on a plurality of transmission rollers, and the intermittent component drives the plurality of transmission rollers to rotate intermittently. When the screen plate passes through the spraying mechanism, the spraying mechanism initially cleans the screen plate. When the transmission rollers stop rotating, the screen plate corresponds to the multi-stage cleaning mechanism, and the intermittent component drives the screen plate to move intermittently, enabling the multi-stage cleaning mechanism to perform multi-stage cleaning on the screen plate and improving the cleaning effect of the screen plate. During the rotation of the transmission rollers, the linkage mechanism abuts against the screen plate and drives the screen plate to slide in a direction away from the spraying mechanism, preventing the screen plate from stopping moving due to excessive friction between the screen plate and the multi-stage cleaning mechanism, facilitating the movement of the screen plate on the transmission rollers, and improving the cleaning efficiency of the screen plate.

[0007] Optionally, the intermittent component includes a driving rod rotatably connected to the cleaning table and a first driving member for driving the driving rod to rotate intermittently. The first driving member is connected to the cleaning table. The driving rod is connected with a plurality of driving bevel gears, and each of the transmission rollers is connected with a driven bevel gear. The plurality of driving bevel gears and the plurality of driven bevel gears correspond to each other one by one, and the driving bevel gear meshes with the driven bevel gear.

[0008] By adopting the above technical solution, the first driving member drives the driving rod to rotate. The plurality of driving bevel gears rotate around the axis of the driving rod, and the driving bevel gear drives the corresponding driven bevel gear to rotate, so as to realize the synchronous rotation of each transmission roller. Since the first driving member drives the driving rod to rotate intermittently, that is, each transmission roller rotates intermittently, the intermittent movement of the screen plate is realized.

[0009] Optionally, the multi-stage cleaning mechanism includes at least two cleaning disks rotatably connected to the cleaning table and a driving assembly for driving each cleaning disk to rotate. The driving assembly is connected to the cleaning table. Each cleaning disk is evenly distributed in a direction away from the spraying mechanism. The distance between each cleaning disk and the transmission roller gradually shortens in a direction away from the spraying mechanism. Each cleaning disk is connected with bristles.

[0010] By adopting the above technical solution, each cleaning disk is evenly distributed in a direction away from the spraying mechanism so that when the screen plate stops intermittently, the screen plate can correspond to different cleaning disks. The driving assembly drives each cleaning disk to rotate, that is, the bristles rotate around the axis of the corresponding cleaning disk, and the bristles are in movable contact with the screen plate to realize the cleaning of the screen plate; the distance between each cleaning disk and the transmission roller gradually shortens in a direction away from the spraying mechanism, and the cleaning force of the cleaning disk farther away from the spraying mechanism on the screen plate is greater, improving the cleaning effect on the screen plate.

[0011] Optionally, the cleaning table is connected with a bracket. The driving assembly includes at least two rotating rods rotatably connected to the bracket and a driving structure for driving each rotating rod to rotate. The driving structure is connected to the bracket. The number of the rotating rods is the same as the number of the cleaning disks. The rotating rods and the cleaning disks correspond to each other one by one. One rotating rod is connected with one cleaning disk. The length of each rotating rod gradually increases in a direction away from the spraying mechanism.

[0012] By adopting the above technical solution, since the length of each rotating rod gradually increases in a direction away from the spraying mechanism, the distance between each cleaning plate and the transmission roller gradually shortens in a direction away from the spraying mechanism, and the cleaning force of the bristles on the screen plate will also gradually increase, thereby improving the cleaning effect of the screen plate.

[0013] Optionally, the driving structure includes a transmission belt sleeved on each of the rotating rods, and the bracket is connected with a second driving member for driving one of the rotating rods to rotate.

[0014] By adopting the above technical solution, the second driving member drives one of the rotating rods to rotate, and this rotating rod drives the remaining rotating rods to rotate together, so as to realize the rotation of each rotating rod. Each rotating rod is associated through the second driving member and the transmission belt, reducing the drive and increasing the correlation of the overall structure.

[0015] Optionally, at least two groups of clamping plates are slidably connected to the cleaning table, the number of groups of the clamping plates is the same as the number of the cleaning trays, one group of the clamping plates corresponds to one cleaning tray, each group of the clamping plates has two clamping plates, the cleaning tray is located between the two clamping plates, and the cleaning table is connected with an active assembly for driving the two clamping plates to slide in a direction close to or away from the cleaning tray.

[0016] By adopting the above technical solution, when the screen plate stops below the cleaning tray, the active assembly drives the two clamping plates to slide in a direction close to the cleaning tray, so that the screen plate is clamped by the two clamping plates, which can not only improve the stability of the placement of the screen plate, but also adjust the position of the screen plate to improve the placement accuracy of the screen plate. The clamping plates can not only prevent the screen plate from moving when the brush bristles clean the screen plate, but also improve the effect of the brush bristles cleaning the screen plate.

[0017] Optionally, the number of the active assemblies is the same as the number of the clamping plates, one active assembly corresponds to one clamping plate, the active assembly includes a first reciprocating lead screw arranged on two adjacent conveying rollers, and the clamping plate is in threaded connection with the two first reciprocating lead screws.

[0018] By adopting the above technical solution, the first driving member drives the driving rod to rotate, so that the conveying roller and the first reciprocating lead screw rotate. The conveying roller drives the screen plate to move, and the first reciprocating lead screw drives the clamping plate to slide in a direction close to the cleaning tray. When the screen plate stops below the cleaning tray, the clamping plate at this time clamps the corresponding screen plate, improving the stability of the placement of the screen plate. After the screen plate is cleaned, the first driving member drives the driving rod to rotate again, so that the conveying roller and the first reciprocating lead screw rotate. The conveying roller drives the screen plate to move, and the first reciprocating lead screw drives the clamping plate to slide in a direction away from the cleaning tray, and the clamping plate releases the screen plate. The clamping plate and the conveying roller are associated through the first reciprocating lead screw, reducing the drive and increasing the correlation of the overall structure.

[0019] Optionally, the linkage mechanism includes a connecting block slidably connected to the cleaning table and a linkage component for driving the connecting block to slide toward or away from the spray mechanism, the linkage component is connected to the cleaning table, the push plate is slidably connected to the connecting block, and the connecting block is connected to a telescopic component for driving the push plate to slide toward or away from the cleaning disk.

[0020] By adopting the above technical solution, when the linkage assembly drives the connection block to move in the direction away from the spray mechanism, the telescopic assembly drives the push plate to move in the direction close to the cleaning disk, so that the push plate of the connection block can abut against the screen and drive the screen to move during the movement. When the linkage assembly drives the connection block to move in the direction close to the spray mechanism, the telescopic assembly drives the push plate to move in the direction away from the cleaning disk, so that the push plate and the screen are staggered, preventing the push plate from abutting against other screens when the connection block moves in the direction close to the spray mechanism, and facilitating the reset of the connection block.

[0021] Optionally, the connecting block is provided with a sliding groove for slidingly cooperating with the push plate, the telescopic assembly includes a guide column connected to the push plate, the connecting block is provided with a waist-shaped hole for slidingly cooperating with the guide column, the waist-shaped hole is connected with the sliding groove, the push plate and the connecting block are connected by an elastic member, the cleaning table is provided with a guide groove for slidingly cooperating with the guide column, the guide groove includes a pushing groove, a giving way groove and two connecting grooves, the pushing groove and the giving way groove are both connected with the two connecting grooves.

[0022] By adopting the above technical solution, when the connecting block moves in the direction away from the spray mechanism, the guide column passes through one of the connecting grooves and enters the push groove, the push plate moves in the direction close to the cleaning disk, and the elastic member is elastically deformed and elongated by tension. The guide column moves along the push groove in the direction away from the spray mechanism, so that the push plate drives the screen to move. When the connecting block moves in the direction close to the spray mechanism, the elastic member elastically resets, and the elastic member forces the guide column to disengage from the push groove and move to another connecting groove, so that the push plate moves in the direction away from the cleaning disk. The guide column moves along the connecting groove to the yielding groove, the elastic member is elastically deformed by pressure, and the guide column moves in the direction close to the spray mechanism, so that the push plate is staggered with other screens, which is convenient for resetting the push plate.

[0023] Optionally, the linkage assembly includes a linkage bevel gear fixedly connected to one of the transmission rollers. The cleaning table is rotatably connected with a connecting rod, and two connecting bevel gears are fixedly connected to the connecting rod. The linkage bevel gear meshes with one of the connecting bevel gears. The cleaning table is rotatably connected with a second reciprocating lead screw, and a rotating bevel gear is fixedly connected to the second reciprocating lead screw. The rotating bevel gear meshes with the other connecting bevel gear. The connecting block is in threaded connection with the second reciprocating lead screw. The cleaning table is provided with a receiving groove for slidingly cooperating with the connecting block, and the receiving groove communicates with the guiding groove.

[0024] By adopting the above technical solution, when the transmission roller rotates, the transmission roller drives the linkage bevel gear to rotate, the linkage bevel gear drives the two connecting bevel gears to rotate, and the connecting bevel gears drive the rotating bevel gear to rotate, so that the second reciprocating lead screw rotates, realizing the sliding of the connecting block in the direction close to or away from the spraying mechanism. The transmission roller and the connecting block are associated through the linkage bevel gear, the connecting bevel gears, the rotating bevel gear and the second reciprocating lead screw, reducing the drive and increasing the association degree of the overall structure.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the transmission roller stops rotating, the screen plate corresponds to the multi-stage cleaning mechanism, and the intermittent assembly drives the screen plate to move intermittently, so that the multi-stage cleaning mechanism performs multi-stage cleaning on the screen plate, improving the cleaning effect of the screen plate. During the rotation of the transmission roller, the linkage mechanism abuts against the screen plate and drives the screen plate to slide in the direction away from the spraying mechanism, preventing the friction force between the screen plate and the multi-stage cleaning mechanism from being too large and causing the screen plate to stop moving, facilitating the movement of the screen plate on the transmission roller and improving the cleaning efficiency of the screen plate.

[0027] 2. When the transmission roller rotates, the transmission roller drives the linkage bevel gear to rotate, the linkage bevel gear drives the two connecting bevel gears to rotate, and the connecting bevel gears drive the rotating bevel gear to rotate, so that the second reciprocating lead screw rotates, realizing the sliding of the connecting block in the direction close to or away from the spraying mechanism. The transmission roller and the connecting block are associated through the linkage bevel gear, the connecting bevel gears, the rotating bevel gear and the second reciprocating lead screw, reducing the drive and increasing the association degree of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is one of the overall structural schematic diagrams of the embodiment of the present application, showing the intermittent assembly.

[0029] Figure 2 is a cross-sectional view of the embodiment of the present application.

[0030] Figure 3 is one of the partial structural schematic diagrams of the embodiment of the present application, showing the connecting plate.

[0031] Figure 4 It is the second overall structural schematic diagram of the embodiment of the present application, showing the active component.

[0032] Figure 5 It is the second partial structural schematic diagram of the embodiment of the present application, showing the linkage component.

[0033] Figure 6 It is Figure 5 a cross-sectional view of

[0034] Figure 7 It is Figure 5 the first partial structural schematic diagram of

[0035] Figure 8 It is Figure 7 a cross-sectional view of

[0036] Figure 9 It is Figure 5 the second partial structural schematic diagram of

[0037] Explanation of reference numerals: 1, cleaning table; 11, transmission roller; 111, driven bevel gear; 12, mounting frame; 13, spraying mechanism; 14, support plate; 15, connecting plate; 151, baffle; 152, torsion spring; 153, cylinder; 16, bracket; 17, carrier plate; 171, receiving groove; 172, guiding groove; 1721, pushing groove; 1722, relief groove; 1723, connecting groove; 2, intermittent component; 21, active rod; 211, active bevel gear; 22, first driving member; 3, multi-stage cleaning mechanism; 31, cleaning disc; 311, bristles; 32, driving component; 321, rotating rod; 322, driving structure; 3221, transmission belt; 3222, second driving member; 4, clamping plate; 5, active component; 51, first reciprocating lead screw; 6, pushing plate; 7, linkage mechanism; 71, connecting block; 711, sliding groove; 712, waist-shaped hole; 72, linkage component; 721, linkage bevel gear; 722, connecting rod; 723, connecting bevel gear; 724, second reciprocating lead screw; 725, rotating bevel gear; 73, telescopic component; 731, guiding column; 732, elastic member. Detailed implementation manners

[0038] The following will Figure 1 - in conjunction with the attached Figure 9 drawings to further elaborate on the present application.

[0039] The embodiment of the present application discloses a screen cleaning device.

[0040] As Figure 1As shown, it includes a cleaning table 1. A number of transmission rollers 11 are rotatably connected to the cleaning table 1. The cleaning table 1 is connected with an intermittent component 2 for driving each transmission roller 11 to rotate intermittently. The intermittent component 2 includes two driving rods 21 rotatably connected to each other on the cleaning table 1. A number of driving bevel gears 211 are fixedly connected to the outer peripheral surfaces of the two driving rods 21. Both ends of each transmission roller 11 are fixedly connected with driven bevel gears 111. The number of driving bevel gears 211 is the same as that of the driven bevel gears 111. One driving bevel gear 211 corresponds to one driven bevel gear 111, and the driving bevel gear 211 meshes with the driven bevel gear 111. The cleaning table 1 is fixedly connected with a first driving member 22 for driving one of the driving rods 21 to rotate intermittently. The first driving member 22 is a servo motor. The first driving member 22 is externally connected with a controller (not shown in the drawings). The first driving member 22 is electrically connected with the controller. One end of one of the driving rods 21 close to the first driving member 22 is fixedly connected with the output end of the first driving member 22.

[0041] Combined with Figure 2 and Figure 3 As shown, the cleaning table 1 is fixedly connected with a mounting frame 12. A spraying mechanism 13 is fixedly connected to one side of the mounting frame 12 close to the transmission roller 11. Two support plates 14 are fixedly connected to the cleaning table 1 relatively. The two support plates 14 are located below the spraying mechanism 13. A number of transmission rollers 11 are rotatably connected to the support plates 14. The transmission rollers 11 rotatably connected to the support plates 14 are only different in length from other transmission rollers 11, and their functions are the same. The two support plates 14 are fixed by a connecting plate 15. A baffle 151 is rotatably connected to the connecting plate 15. The baffle 151 is connected with the connecting plate 15 through a torsion spring 152. The connecting plate 15 is fixedly connected with a cylinder 153. The controller is electrically connected with the cylinder 153. The output end of the cylinder 153 abuts against the baffle 151. When the cylinder 153 jacks up the baffle 151, the baffle 151 can block the screen plate, so as to control the distance between adjacent screen plates.

[0042] As shown in Figure 4As shown in the figure, the cleaning table 1 is fixedly connected with a bracket 16. The bracket 16 is connected with a multi-stage cleaning mechanism 3. The multi-stage cleaning mechanism 3 includes three cleaning discs 31 rotatably connected to one side of the bracket 16 close to the transmission roller 11 and a driving assembly 32 for driving each cleaning disc 31 to rotate. The distances between the three cleaning discs 31 and the transmission roller 11 gradually decrease in the direction away from the mounting frame 12. The distances between adjacent two cleaning discs 31 are equal. On one side of each cleaning disc 31 close to the transmission roller 11, there is fixedly connected a brush 311. The driving assembly 32 includes three rotating rods 321 rotatably connected to the bracket 16 and a driving structure 322 for driving each rotating rod 321 to rotate. One rotating rod 321 is fixedly connected with one cleaning disc 31. The lengths of the three rotating rods 321 gradually increase in the direction away from the mounting frame 12. The distances between adjacent two rotating rods 321 are equal. The driving structure 322 includes a transmission belt 3221 sleeved on the three rotating rods 321. The bracket 16 is fixedly connected with a second driving member 3222 for driving one of the rotating rods 321 to rotate. The second driving member 3222 is a servo motor. One end of one of the rotating rods 321 close to the second driving member 3222 is fixedly connected with the output end of the second driving member 3222. The second driving member 3222 is electrically connected with the controller.

[0043] As Figure 4 shown, the cleaning table 1 is connected with three groups of clamping plates 4. Each group of clamping plates 4 corresponds to one cleaning disc 31. Each group of clamping plates 4 has two clamping plates 4. The two clamping plates 4 are respectively slidably connected to both sides of the cleaning disc 31. The cleaning table 1 is connected with a driving assembly 5 for driving the two clamping plates 4 to slide in the direction close to or away from the cleaning disc 31. One cleaning disc 31 corresponds to the two driving assemblies 5. The driving assembly 5 includes a first reciprocating lead screw 51 fixedly connected to two adjacent transmission rollers 11 among them. The clamping plate 4 is threadedly connected to the two adjacent first reciprocating lead screws 51.

[0044] Combined with Figure 5 、 Figure 6 and Figure 7As shown, the bracket 16 is fixedly connected to the carrier plate 17, and the carrier plate 17 is slidably connected to the push plate 6, and the push plate 6 corresponds to the cleaning plate 31 farthest from the mounting frame 12. The carrier plate 17 is connected to a linkage mechanism 7 for driving the push plate 6 to slide toward or away from the mounting frame 12 through the transmission roller 11. The linkage mechanism 7 includes a connecting block 71 slidably connected to the carrier plate 17, and the connecting block 71 is L-shaped. The carrier plate 17 is provided with a receiving groove 171 for the connecting block 71 to be inserted and slid. The bracket 16 is connected to a linkage assembly 72 for driving the connecting block 71 to slide in a direction close to or away from the mounting frame 12. The linkage assembly 72 includes a linkage bevel gear 721 fixedly connected to one of the transmission rollers 11. The bracket 16 is rotatably connected to a connecting rod 722. Both ends of the connecting rod 722 are fixedly connected to connecting bevel gears 723. The linkage bevel gear 721 is meshed with one of the connecting bevel gears 723. The bracket 16 is rotatably connected to a second reciprocating screw rod 724. The second reciprocating screw rod 724 is fixedly connected to a rotating bevel gear 725. The rotating bevel gear 725 is meshed with another connecting bevel gear 723. The connecting block 71 is threadedly connected to the second reciprocating screw rod 724.

[0045] Combination Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the connecting block 71 is provided with a slide groove 711 for the push plate 6 to be inserted and slid, and the connecting block 71 is connected with a telescopic assembly 73 for driving the push plate 6 to slide toward or away from the third cleaning tray 31, and the telescopic assembly 73 includes a guide column 731 fixedly connected to the push plate 6, and the connecting block 71 is provided with a waist-shaped hole 712 for the guide column 731 to be inserted and slid, and the waist-shaped hole 712 is connected with the slide groove 711. The push plate 6 is connected to the connecting block 71 through an elastic member 732, and the elastic member 732 is a spring, and one end of the elastic member 732 is fixedly connected to the push plate 6, and the other end is fixedly connected to the inner wall of the slide groove 711. The carrier plate 17 is provided with a guide groove 172 for the guide column 731 to be inserted and slide. The guide groove 172 is connected with the accommodating groove 171. The guide groove 172 includes a pushing groove 1721, a giving way groove 1722 and two connecting grooves 1723. The pushing groove 1721 and the giving way groove 1722 are both connected with the two connecting grooves 1723. The giving way groove 1722 is parallel to the pushing groove 1721.

[0046] The implementation principle of a screen cleaning device in the embodiment of the present application is as follows:

[0047] Place the stencil on the transfer roller 11. The controller controls the first driving member 22 to open. The first driving member 22 drives the driving rod 21 to rotate. The driving bevel gear 211 rotates around the axis of the driving rod 21. The driving bevel gear 211 drives the driven bevel gear 111 to rotate, that is, each transfer roller 11 rotates. The transfer roller 11 drives the stencil to slide towards the direction close to the spraying mechanism 13. The controller controls the cylinder 153 to open. The output end of the cylinder 153 drives the baffle 151 to lift up. The torsion spring 152 rotates. The baffle 151 plays a role in blocking the stencil. When the driving rod 21 stops rotating, the output end of the cylinder 153 moves away from the baffle 151. The torsion spring 152 drives the baffle 151 to reset. The baffle 151 no longer blocks the movement of the stencil. The spraying mechanism 13 conducts preliminary cleaning on the stencil. The first driving member 22 drives the driving rod 21 to rotate again. Each transfer roller 11 rotates. The first reciprocating lead screw 51 rotates. The transfer roller 11 drives the stencil to move towards the direction close to the cleaning tray 31. The first reciprocating lead screw 51 drives the clamping plate 4 to move away from the cleaning tray 31. The controller controls the cylinder 153 to lift up the baffle 151 again to block other stencils. The stencil needs to move to the lower part of the cleaning tray 31 closest to the spraying mechanism 13. When the stencil moves half of the distance, the first reciprocating lead screw 51 moves towards the direction close to the cleaning tray 31. When the stencil moves to the lower part of the cleaning tray 31 closest to the spraying mechanism 13, the driving rod 21 stops rotating. At this time, the clamping plate 4 clamps the stencil. The multi-stage cleaning mechanism 3 conducts cleaning on the stencil. The process of the stencil moving to the middle cleaning tray 31 is the same as the above method.

[0048] The transfer roller 11 rotates, and the screen plate moves away from the cleaning plate 31 in the middle and moves towards the cleaning plate 31 farthest from the spraying mechanism 13. There is a large friction between the screen plate and the bristles 311 of the cleaning plate 31 farthest from the spraying mechanism 13, and it is not easy for the screen plate to move under the cleaning plate 31 farthest from the spraying mechanism 13. The bristles 311 play a role in restricting the movement of the screen plate. The transfer roller 11 drives the linkage bevel gear 721 to rotate, the linkage bevel gear 721 drives the two connecting bevel gears 723 to rotate, the connecting bevel gear 723 drives the rotating bevel gear 725 to rotate, so that the second reciprocating lead screw 724 rotates. The second reciprocating lead screw 724 drives the connecting block 71 to move away from the spraying mechanism 13. The guide post 731 moves through the connecting groove 1723 to the connecting groove 1723 farthest from the spraying mechanism 13. The elastic member 732 elastically returns, and the elastic member 732 forces the guide post 731 to be stuck in the connecting groove 1723. The second reciprocating lead screw 724 drives the connecting block 71 to move towards the spraying mechanism 13. The guide post 731 moves along the connecting groove 1723 to the relief groove 1722, and the elastic member 732 is elastically deformed under pressure, so that the push plate 6 is staggered from the screen plate. When the guide post 731 moves through the connecting groove 1723 to the connecting groove 1723 closest to the spraying mechanism 13, the elastic member 732 elastically returns, and the elastic member 732 forces the guide post 731 to be stuck in the connecting groove 1723. When the guide post 731 moves along the connecting groove 1723 to the pushing groove 1721, the elastic member 732 is elastically deformed and stretched under tension. At this time, the push plate 6 is located between the spraying mechanism 13 and the corresponding screen plate. The push plate 6 can abut against the corresponding screen plate and drive the screen plate to move, so that the push plate 6 drives the screen plate to move under the cleaning plate 31 farthest from the spraying mechanism 13, and the driving rod 21 stops rotating, that is, the first reciprocating lead screw 51 and the second reciprocating lead screw 724 stop rotating. After the screen plate is cleaned, the driving rod 21 rotates again, and the push plate 6 pushes the cleaned screen plate out of the cleaning plate 31 farthest from the spraying mechanism 13, and then pushes the screen plate that has not been deeply cleaned under the cleaning plate 31 farthest from the spraying mechanism 13.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A screen cleaning device, characterized in that: The invention comprises a cleaning table (1), wherein the cleaning table (1) is connected to a spray mechanism (13), the cleaning table (1) is rotatably connected to a plurality of transmission rollers (11), the cleaning table (1) is connected to an intermittent component (2) for driving each of the transmission rollers (11) to intermittently rotate, the cleaning table (1) is connected to a multi-stage cleaning mechanism (3), the multi-stage cleaning mechanism (3) comprises at least two cleaning discs (31) rotatably connected to the cleaning table (1) and a driving component (32) for driving each of the cleaning discs (31) to rotate, the driving component (32) being connected to the cleaning table (1), each of the cleaning discs (31) being evenly distributed in a direction away from the spray mechanism (13), and each of the cleaning discs (31) being arranged to rotate relative to the spray mechanism (13). The distance between the transmission rollers (11) is gradually shortened in a direction away from the spray mechanism (13); each of the cleaning discs (31) is connected to a brush (311); the cleaning table (1) is slidably connected to a push plate (6) for contacting with a screen; the push plate (6) corresponds to the multi-stage cleaning mechanism (3); the cleaning table (1) is connected to a linkage mechanism (7) for driving the push plate (6) to slide in a direction close to or away from the spray mechanism (13) through the transmission rollers (11); the linkage mechanism (7) comprises a connecting block (71) slidably connected to the cleaning table (1) and a linkage component (72) for driving the connecting block (71) to slide in a direction close to or away from the spray mechanism (13); the linkage The assembly (72) is connected to the cleaning table (1), the push plate (6) is slidably connected to the connecting block (71), the connecting block (71) is connected to a telescopic assembly (73) for driving the push plate (6) to slide in a direction close to or away from the cleaning disk (31), the connecting block (71) is provided with a slide groove (711) for slidingly cooperating with the push plate (6), the telescopic assembly (73) includes a guide column (731) connected to the push plate (6), the connecting block (71) is provided with a waist-shaped hole (712) for slidingly cooperating with the guide column (731), the waist-shaped hole (712) is connected to the slide groove (711), the push plate (6) and the connecting block (71) are connected by an elastic member (73 2), the cleaning table (1) is provided with a guide groove (172) for slidingly cooperating with the guide column (731), the guide groove (172) includes a push groove (1721), a give way groove (1722) and two connecting grooves (1723), the push groove (1721) and the give way groove (1722) are both connected to the two connecting grooves (1723), the linkage assembly (72) includes a linkage bevel gear (721) fixedly connected to one of the transmission rollers (11), the cleaning table (1) is rotatably connected to a connecting rod (722), the connecting rod (722) is fixedly connected to two connecting bevel gears (723), the linkage bevel gear (721) is meshed with one of the connecting bevel gears (723),The cleaning table (1) is rotatably connected to a second reciprocating screw (724), the second reciprocating screw (724) is fixedly connected to a rotating bevel gear (725), the rotating bevel gear (725) is meshed with another connecting bevel gear (723), the connecting block (71) is threadedly connected to the second reciprocating screw (724), the cleaning table (1) is provided with a receiving groove (171) for slidingly cooperating with the connecting block (71), and the receiving groove (171) is communicated with the guide groove (172).

2. The screen cleaning device according to claim 1, characterized in that: The intermittent assembly (2) comprises an active rod (21) rotatably connected to the cleaning table (1) and a first driving member (22) for driving the active rod (21) to intermittently rotate, the first driving member (22) being connected to the cleaning table (1), the active rod (21) being connected to a plurality of active bevel gears (211), each of the transmission rollers (11) being connected to a driven bevel gear (111), the plurality of active bevel gears (211) corresponding to the plurality of driven bevel gears (111) one by one, and the active bevel gears (211) being meshed with the driven bevel gears (111).

3. The screen cleaning device according to claim 1, characterized in that: The cleaning table (1) is connected to a bracket (16); the driving assembly (32) comprises at least two rotating rods (321) rotatably connected to the bracket (16) and a driving structure (322) for driving each of the rotating rods (321) to rotate; the driving structure (322) is connected to the bracket (16); the number of the rotating rods (321) is the same as the number of the cleaning discs (31); the rotating rods (321) correspond to the cleaning discs (31) one by one; one rotating rod (321) is connected to one cleaning disc (31); and the length of each rotating rod (321) increases step by step in a direction away from the spray mechanism (13).

4. The screen cleaning device according to claim 3, characterized in that: The driving structure (322) comprises a transmission belt (3221) sleeved on each of the rotating rods (321), and the bracket (16) is connected to a second driving member (3222) for driving one of the rotating rods (321) to rotate.

5. The screen cleaning device according to claim 1, characterized in that: The cleaning table (1) is slidably connected to at least two groups of clamping plates (4), the number of groups of the clamping plates (4) is the same as the number of the cleaning discs (31), one group of the clamping plates (4) corresponds to one cleaning disc (31), each group of the clamping plates (4) has two clamping plates (4), and the cleaning disc (31) is located between the two clamping plates (4). The cleaning table (1) is connected to an active component (5) for driving the two clamping plates (4) to slide in a direction close to or away from the cleaning disc (31).

6. The screen cleaning device according to claim 5, characterized in that: The number of the active components (5) is the same as the number of the clamping plates (4), one active component (5) corresponds to one clamping plate (4), the active component (5) comprises a first reciprocating screw rod (51) arranged on two adjacent transmission rollers (11), and the clamping plate (4) is threadedly connected to the two first reciprocating screw rods (51).

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