A screen printing press washing device

Abstract

This invention provides a screen printing machine rinsing device, belonging to the field of screen cleaning technology. It includes a screen cleaning box with a screen inlet on one outer wall and a screen outlet on the other outer wall. The screen inlet and outlet are on the same horizontal plane and overlap. The screen cleaning box is equipped with a screen conveying assembly, a cleaning agent spraying assembly, a screen brushing assembly, an upper rinsing assembly, a lower scraper assembly, and a screen limiting assembly. During high-pressure rinsing, this invention supports the rinsing area of ​​the screen mesh, preventing excessive local pressure and deformation, and facilitating the removal of ink clogged in the mesh openings. Under the power of the high-pressure water flow, the scraper table is activated, cutting off the ink adhering to the mesh openings, ensuring complete ink removal, preventing residue, and improving cleaning quality and efficiency.

Description

Technical Field

[0001] This invention belongs to the field of screen printing cleaning technology, and specifically relates to a screen printing machine rinsing device. Background Technology

[0002] A screen printing machine is a type of stencil printing equipment that transfers ink to the surface of a substrate using a screen printing plate. It is widely used in fields such as electronics manufacturing, packaging, ceramic substrates, and circuit boards. It utilizes the fact that ink can pass through the mesh openings in the image areas of the screen printing plate, while ink cannot pass through the mesh openings in the non-image areas. The ink is transferred to the substrate by applying pressure with a squeegee through the mesh openings.

[0003] After prolonged use, ink stains easily accumulate on the screens of a screen printing machine, which can affect the printing quality. Cleaning is necessary. However, due to the adhesive nature of the ink and its clogging within the screen mesh, existing screen printing machine cleaning devices struggle to remove the ink from the mesh, resulting in low cleaning quality and efficiency, making them unsuitable for use.

[0004] Therefore, a screen printing machine washing device is proposed. Summary of the Invention

[0005] The present invention provides a screen printing machine washing device, the purpose of which is to solve the problems mentioned above.

[0006] This invention provides a screen printing machine rinsing device, including a screen cleaning box. A screen inlet is located on one outer wall of the screen cleaning box, and a screen outlet is located on the other outer wall. The screen inlet and outlet are on the same horizontal plane and overlap. A servo motor is installed on one outer wall of the screen cleaning box near the top of the screen outlet, and a servo motor is installed on another outer wall of the screen cleaning box near the bottom of the screen outlet. The screen cleaning box includes a screen conveying assembly, a cleaning agent spraying assembly, a screen brushing assembly, an upper rinsing assembly, a lower scraper assembly, and a screen limiting assembly. The upper rinsing assembly includes two upper support blocks (first and second) located on the inner wall of the screen cleaning box. The two upper support blocks (first) are located on one side of the two upper support blocks (second), and a lead screw (first) is rotatably connected between the two upper support blocks (first). One end of the lead screw (first) is connected to the servo motor (first). The output end is fixedly connected, and a sliding column is provided between the two upper support blocks 2. The screw nut seat on the lead screw 1 is fixedly connected to a moving plate by screws. Two electric push rods are symmetrically arranged on the top of the moving plate by bolts. The output ends of the two electric push rods are fixedly connected to a rinsing seat. The top of the rinsing seat is provided with a main rinsing pipe and a side rinsing pipe. The main rinsing pipe is located on one side of the side rinsing pipe. The lower scraper assembly includes a lower support block 1 and a lower support block 2 located on the inner side wall of the screen cleaning box. The lower support block 1 is located on the horizontal side of the lower support block 2, and a lead screw 2 is rotatably connected to one side outer wall of the lower support block 1. One end of the lead screw 2 is fixedly connected to the output end of the servo motor 2. A sliding column 2 is provided on one side outer wall of the lower support block 2. One end of the sliding column 2 is fixedly connected to the inner side wall of the screen cleaning box. The screw nut seat on the lead screw 2 is fixedly connected to an abutment seat by screws. A scraper table is slidably connected to the abutment seat.

[0007] Furthermore, the top of the abutment seat has a through main flushing groove and a side flushing groove, the main flushing groove is located on one side of the side flushing groove, the interior of the abutment seat has a transverse groove communicating with the side flushing groove, and the bottom of the abutment seat has a drain groove communicating with the transverse groove. The top of the abutment seat has a groove communicating with the main flushing groove, a spring is provided on the inner side wall of the groove, one end of the spring is provided with a scraper platform, a cutting edge is provided on one side wall of the scraper platform near the top, and a connecting plate is provided at the center of the bottom of the scraper platform. A vertical plate is provided at the bottom of the connecting plate, a horizontal plate is provided at the center of one side outer wall of the vertical plate, a force-bearing plate is provided on the outer wall of the horizontal plate away from the vertical plate, and a communicating cavity is provided inside the abutment seat for the connecting plate to move.

[0008] Furthermore, the screen conveying assembly includes several limiting discs rotating on the inner wall of the screen washing tank. The limiting discs are not only equally spaced in the axial direction, but also mirror-shaped in the vertical direction. A conveying column is provided at the center of one outer wall of each limiting disc. A rubber resistance-increasing sleeve is provided on the outer circumferential surface of the conveying column. The screen conveying assembly conveys the screen frame through frictional resistance. The inner wall of the screen frame is provided with screen mesh, and the screen frame and the rubber resistance-increasing sleeve abut against each other.

[0009] Furthermore, the cleaning agent spraying assembly includes two guide hoods symmetrically arranged on the inner side wall of the screen cleaning box. Spray nozzles are respectively provided at the bottom and top of the two guide hoods, and spray pipes are respectively provided at the bottom and top of the two guide hoods, with the spray pipes passing through the screen cleaning box.

[0010] Furthermore, the screen printing plate washing assembly includes two fixed plates symmetrically arranged on the inner side wall of the screen printing plate washing box. Two drive motors are symmetrically arranged on the fixed plates. The output ends of the two drive motors are fixedly connected to a rotating disk. A number of gear teeth are evenly spaced on the outer circumferential surface of the rotating disk. Two drain ports and four guide holes are symmetrically arranged on the outer side wall of the screen printing plate washing box. A guide rod is movably inserted through the inside of the guide hole. A worm gear is arranged between the two guide rods. A connecting block is arranged on the outer circumferential surface of the guide rod. A brush plate is arranged on one side of the outer wall of the two connecting blocks. A nylon brush is arranged on the outer wall of the brush plate away from the connecting block.

[0011] Furthermore, the screen printing plate limiting component includes four storage covers symmetrically arranged on the outer wall of the screen printing plate cleaning box. Each of the four storage covers has a cylinder on the outer wall away from the screen printing plate cleaning box. The cylinder is fixedly connected to a limiting post through its output end, and the limiting post moves through the screen printing plate cleaning box.

[0012] Furthermore, the screen cleaning box is provided with a box cover on the top, and the top of the box cover is provided with a movable groove and a perforation. The movable groove is located on one side of the perforation. The main flushing pipe and the side flushing pipe pass through the movable groove, and the spray pipe passes through the perforation.

[0013] Furthermore, the gear teeth are arranged circumferentially on the rotating disk, and the gear teeth and worm gear mesh for transmission; By adopting the above technical solution, and utilizing the differential distribution of the gear teeth on the rotating disk, the guide rod can be reciprocated linearly by meshing transmission when the two rotating disks rotate, thereby driving the nylon brush to brush and wash the screen.

[0014] Furthermore, the first sliding column movably penetrates the movable plate, and the second sliding column movably penetrates the abutment seat; By adopting the above technical solution and utilizing the supporting and guiding capabilities of slide column one and slide column two, the stability of the moving plate and the abutment seat in the horizontal direction can be ensured, and the tilting of the moving plate and the abutment seat can be avoided, thereby adjusting the position of the moving plate and the abutment seat so as to perform all-round washing of the screen.

[0015] Furthermore, the vertical plate and the force-bearing plate are matched and fitted with the horizontal groove, and the top of the scraper table and the cutting edge are in contact with the bottom of the screen mesh. By adopting the above technical solution, the vertical plate and the load-bearing plate can move inside the horizontal groove. The load-bearing plate can be moved by the high-pressure water flow, which in turn controls the movement of the scraper table. This allows the cutting edge on the scraper table to cut off the ink adhering to the bottom of the mesh, improving the rinsing effect and efficiency.

[0016] The beneficial effects of this invention are as follows: 1. This invention, through the cooperation of the upper rinsing component and the lower scraper component, supports the rinsing area of ​​the screen during high-pressure rinsing, preventing the screen from being deformed due to excessive local pressure, and facilitating the removal of ink clogging the mesh. Under the power of the high-pressure water flow, the scraper table is linked to cut off the ink adhering to the mesh, ensuring that the ink is fully removed, avoiding residue, and improving cleaning quality and efficiency.

[0017] 2. This invention, through the cooperation of the cleaning agent spraying component and the screen washing component, can pre-spray special screen washing water evenly on both sides of the screen before rinsing, focusing on covering the image area. During the screen conveying process, the ink is softened, and under the straight reciprocating brushing of the nylon brush, the ink on the screen can be brushed off and pushed to the outside of the screen, avoiding ink accumulation that would affect the subsequent cleaning effect and efficiency.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the screen cleaning box structure according to an embodiment of the present invention; Figure 3 This is a three-dimensional cross-sectional schematic diagram of the screen cleaning box according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the screen washing assembly structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the rotating disk structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the upper flushing assembly structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the lower scraper assembly structure according to an embodiment of the present invention; Figure 8 This is a three-dimensional cross-sectional schematic diagram of the abutment seat and scraper platform according to an embodiment of the present invention; Figure 9 This is a three-dimensional cross-sectional schematic diagram of the scraper table according to an embodiment of the present invention; Figure 10 This is a three-dimensional cross-sectional schematic diagram of the abutment seat according to an embodiment of the present invention; Attached reference numerals: 1. Screen cleaning box; 11. Screen inlet; 12. Screen outlet; 13. Drain outlet; 14. Guide hole; 15. Servo motor one; 16. Servo motor two; 2. Screen conveying assembly; 21. Limiting plate; 22. Conveying column; 23. Rubber resistance sleeve; 3. Screen frame; 31. Screen mesh; 4. Cleaning agent spraying assembly; 41. Flow guide; 411. Spray nozzle; 412. Spray pipe; 5. Screen brushing assembly; 51. Fixing plate; 511. Drive motor; 512. Rotating disc; 513. Gear tooth; 52. Guide rod; 521. Worm gear; 522. Connecting block; 523. Brush plate; 524. Nylon brush; 6. Upper rinsing assembly; 61. Upper support block one; 611. Lead screw one; 62. Upper... Support block 2; 621, sliding column 1; 63, moving plate; 631, electric push rod; 64, flushing seat; 65, main flushing pipe; 66, side flushing pipe; 7, lower scraper assembly; 71, lower support block 1; 711, lead screw 2; 72, lower support block 2; 721, sliding column 2; 73, abutment seat; 731, main flushing tank; 732, side flushing tank; 733, horizontal groove; 734, drain tank; 735, groove; 736, spring; 737, connecting cavity; 74, scraper platform; 741, cutting edge; 742, connecting plate; 743, vertical plate; 744, horizontal plate; 745, force plate; 8, screen limiting assembly; 81, storage cover; 82, cylinder; 821, limiting column; 9, box cover; 91, movable groove; 92, perforation. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example 1 Reference Figure 1-3 , Figure 6-10 This invention provides a screen printing machine rinsing device, including a screen cleaning box 1. A screen inlet 11 is provided on one side of the outer wall of the screen cleaning box 1, and a screen outlet 12 is provided on the other side of the outer wall of the screen cleaning box 1. The screen inlet 11 and the screen outlet 12 are on the same horizontal plane and overlap. A servo motor 15 is provided on one side of the outer wall of the screen cleaning box 1 near the upper part of the screen outlet 12, and a servo motor 16 is provided on one side of the outer wall of the screen cleaning box 1 near the lower part of the screen outlet 12. The screen cleaning box 1 is provided with a screen conveying assembly 2, a cleaning agent spraying assembly 4, a screen brushing assembly 5, an upper rinsing assembly 6, a lower scraper assembly 7, and a screen limiting assembly 8. The screen conveying assembly 2 includes several limiting discs 21 rotating on the inner wall of the screen cleaning box 1. The limiting discs 21 are not only equally spaced in the axial direction, but also mirror images of each other in the vertical direction. A conveying column 22 is provided at the center of one outer wall of the limiting disc 21. A rubber resistance sleeve 23 is provided on the outer circumference of the conveying column 22. The screen conveying assembly 2 conveys the screen frame 3 through frictional resistance. A screen mesh 31 is provided on the inner wall of the screen frame 3. The screen mesh 31 has mesh openings for printing. The screen frame 3 and the rubber resistance sleeve 23 abut against each other. A chain and sprocket drive mechanism is provided on the outer wall of the screen cleaning box 1. The limiting discs 21 are fixed to the sprocket. The chain and sprocket drive mechanism drives the limiting discs 21 to rotate, thereby using the screen conveying assembly 2 to horizontally convey the screen frame 3 and the screen mesh 31, so that the screen is brushed and rinsed during the conveying process, improving the cleaning efficiency of the screen. The screen plate limiting component 8 includes four storage covers 81 symmetrically arranged on the outer wall of the screen plate cleaning box 1. Each of the four storage covers 81 has a cylinder 82 on the outer wall away from the screen plate cleaning box 1. The cylinder 82 is fixedly connected to a limiting post 821 through its output end. The limiting post 821 movably passes through the screen plate cleaning box 1. The top of the screen plate cleaning box 1 is provided with a box cover 9. The top of the box cover 9 has a movable groove 91 and a through hole 92. The movable groove 91 is located on one side of the through hole 92. The main flushing pipe 65 and the side flushing pipe 66 pass through the movable groove 91, and the spray pipe 412 passes through the through hole 92. The screen plate limiting component 8 can limit the screen plate during the conveying process, so that the screen plate is in a fixed state, thereby performing a stable flushing operation on the screen plate. The upper rinsing assembly 6 includes two upper support blocks 61 and two upper support blocks 62 located on the inner wall of the screen cleaning box 1. The two upper support blocks 61 are located on one side of the two upper support blocks 62, and a lead screw 611 is rotatably connected between the two upper support blocks 61. One end of the lead screw 611 is fixedly connected to the output end of the servo motor 15. A sliding column 621 is provided between the two upper support blocks 62. A movable plate 63 is fixedly connected to the screw nut seat on the lead screw 611 by screws. The top of the movable plate 63 is fixed by bolts. Two electric push rods 631 are symmetrically arranged. The output ends of the two electric push rods 631 are fixedly connected to a rinsing seat 64. The top of the rinsing seat 64 is provided with a main rinsing pipe 65 and a side rinsing pipe 66. The main rinsing pipe 65 is located on one side of the side rinsing pipe 66. A solenoid valve for controlling the opening and closing is provided at one end of the main rinsing pipe 65 and the side rinsing pipe 66. The solenoid valve is connected to an external high-pressure pump. The flow of high-pressure water is controlled by the solenoid valve, and the external high-pressure pump injects high-pressure water into the main rinsing pipe 65 and the side rinsing pipe 66, so that the high-pressure water flows to rinse the screen. The lower scraper assembly 7 includes a lower support block 1 71 and a lower support block 2 72 located on the inner wall of the screen cleaning box 1. The lower support block 1 71 is located on the horizontal side of the lower support block 2 72, and a lead screw 2 711 is rotatably connected to the outer wall of one side of the lower support block 1 71. One end of the lead screw 2 711 is fixedly connected to the output end of the servo motor 2 16. A sliding column 2 721 is provided on the outer wall of one side of the lower support block 2 72. One end of the sliding column 2 721 is fixedly connected to the inner wall of the screen cleaning box 1. The screw nut seat on the lead screw 2 711 is fixedly connected to the abutment seat 73 by screws. The sliding column 1 621 movably passes through the moving plate 63. Column 2 721 movably penetrates the abutment seat 73. Utilizing the supporting and guiding capabilities of sliding column 1 621 and sliding column 2 721, the stability of the moving plate 63 and abutment seat 73 in the horizontal direction can be ensured, preventing the moving plate 63 and abutment seat 73 from tilting. This allows for adjustment of the position of the moving plate 63 and abutment seat 73, enabling all-round washing of the screen. A scraper table 74 is slidably connected to the abutment seat 73. The top of the abutment seat 73 has a through main washing groove 731 and a side washing groove 732. The main washing groove 731 is located on one side of the side washing groove 732. The interior of the abutment seat 73 has a section connected to the side washing groove 732. The transverse groove 733 is open, and the bottom of the abutment seat 73 is provided with a drainage groove 734 that communicates with the transverse groove 733. The top of the abutment seat 73 is provided with a groove 735 that communicates with the main flushing groove 731. A spring 736 is provided on the inner side wall of the groove 735. A scraper table 74 is provided at one end of the spring 736. A cutting edge 741 is provided on one side wall of the scraper table 74 near the top. A connecting plate 742 is provided at the center of the bottom of the scraper table 74. A vertical plate 743 is provided at the bottom of the connecting plate 742. The vertical plate 743 and the force plate 745 are matched and fit with the transverse groove 733. The top of the scraper table 74 and The cutting edge 741 abuts against the bottom of the screen 31, allowing the vertical plate 743 and the force plate 745 to move inside the horizontal groove 733. High-pressure water flow can push the force plate 745 to move, thereby controlling the movement of the scraper table 74, so that the cutting edge 741 on the scraper table 74 can cut the ink adhering to the bottom of the mesh, improving the rinsing effect and efficiency. A horizontal plate 744 is provided at the center of one side of the outer wall of the vertical plate 743. A force plate 745 is provided on the outer wall of the horizontal plate 744 away from the vertical plate 743. The inside of the abutment seat 73 is provided with a connecting cavity 737 for the connecting plate 742 to move. To thoroughly clean the screen printing mesh 31 and facilitate the removal of ink from the mesh openings, in this embodiment, the upper rinsing assembly 6 and the lower scraper assembly 7 work together to support the rinsing area of ​​the screen printing mesh 31 during high-pressure rinsing. This prevents excessive local pressure and deformation of the screen printing mesh 31 and facilitates the removal of ink clogged in the mesh openings. Under the power of the high-pressure water flow, the scraper table 74 is activated, cutting off the ink adhering to the mesh openings, ensuring complete removal of ink and preventing residue. This improves cleaning quality and efficiency. Specifically, the screen frame 3 and the screen printing mesh 31 are inserted horizontally into the screen cleaning box 1 through the screen inlet 11. When the screen frame 3 is inserted, both the top and bottom of the screen frame 3 abut against the rubber resistance sleeve 23. Appropriate deformation of the rubber resistance sleeve 23 increases the friction between it and the screen frame 3. The limiting plate 21 limits the conveying trajectory of the screen frame 3. An external chain and sprocket drive mechanism drives the limiting plate 21 to rotate, causing the conveying column 22 and the rubber resistance sleeve 23 to rotate synchronously. Friction enables the horizontal conveying of the screen frame 3 and the screen mesh 31. When the screen moves between the rinsing seat 64 and the abutment seat 73, the conveying of the screen frame 3 stops, and the control cylinder 82 drives the limiting column 821 to move through its output end on one side. After the four limiting columns 821 move towards each other, they clamp and fix the screen frame 3. The servo control... Servo motor 15 and servo motor 2 16 operate. Servo motor 15 drives lead screw 611 to rotate through its output end on one side, and servo motor 2 16 drives lead screw 711 to rotate through its output end on one side. As lead screws 611 and 711 rotate, the rinsing seat 64 and the abutment seat 73 move horizontally along the screen. The solenoid valve on the main rinsing pipe 65 is opened, and the solenoid valve on the side rinsing pipe 66 is closed. An external high-pressure pump pumps rinsing fluid into the main rinsing pipe 65. After passing through the rinsing seat 64, the rinsing fluid comes into contact with the screen 31. The high-pressure water flow washes away the ink in the mesh openings of the screen 31. The wastewater containing ink passes through the main rinsing tank 731 on the abutment seat 73 and is controlled... When the solenoid valve on the side rinsing pipe 66 is opened, high-pressure water flows into the side rinsing pipe 66. The rinsing liquid passes through the rinsing seat 64 and comes into contact with the screen 31, and enters the side rinsing groove 732 on the abutment seat 73. Under the action of water pressure, the pressure pushes the force plate 745 to move along the horizontal groove 733. With the connection of the horizontal plate 744, the vertical plate 743 and the connecting plate 742, the scraper table 74 moves synchronously along the groove 735. The scraper table 74 moves towards the middle of the main rinsing groove 731. As the two scraper tables 74 move towards each other against the bottom of the screen 31, the cutting edge 741 on the scraper table 74 cuts the ink adhering to the screen 31, so that the ink is fully removed and no residue is left.

[0022] Example 2 Reference Figure 1-2 and Figure 4-5The present invention also proposes a cleaning agent spraying assembly 4 and a screen washing assembly 5. The cleaning agent spraying assembly 4 includes two guide hoods 41 symmetrically arranged on the inner wall of the screen washing box 1. The bottom and top of the two guide hoods 41 are respectively provided with spray nozzles 411, and the bottom and top of the two guide hoods 41 are respectively provided with spray pipes 412, which pass through the screen washing box 1. The screen washing assembly 5 includes two fixing plates 51 symmetrically arranged on the inner wall of the screen washing box 1. Two drive motors 511 are symmetrically arranged on the fixing plates 51. The output ends of the two drive motors 511 are fixedly connected to a rotating disk 512. A plurality of gear teeth 513 are evenly spaced on the outer circumferential surface of the rotating disk 512. The gears are arranged in a 90-degree circumferential direction, and the gear teeth 513 and worm gear 521 mesh and drive each other. By utilizing the differential distribution of the gear teeth 513 on the rotating disk 512, the guide rod 52 can be pulled to reciprocate linearly when the two rotating disks 512 rotate, thereby pulling the nylon brush 524 to brush the screen 31. Two drain ports 13 and four guide holes 14 are symmetrically arranged on the outer wall of the screen cleaning box 1. The guide rod 52 moves through the inside of the guide hole 14. The worm gear 521 is arranged between the two guide rods 52, and the connecting block 522 is arranged on the outer circumferential surface of the guide rod 52. The brush plate 523 is arranged on one side of the outer wall of the two connecting blocks 522, and the nylon brush 524 is arranged on the side of the brush plate 523 away from the connecting block 522. To improve the cleaning quality and efficiency of the screen after rinsing, in this embodiment, the cleaning agent spraying component 4 and the screen brushing component 5 work together to pre-spray the special screen cleaning water evenly on both sides of the screen before rinsing, focusing on covering the image area. During the screen transport process, the ink is softened, and under the linear reciprocating brushing of the nylon brush 524, the ink on the screen 31 can be brushed off and pushed to the outside of the screen, avoiding ink accumulation that would affect the subsequent cleaning effect and efficiency. Specifically, as the screen moves inside the screen cleaning box 1, the special screen cleaning water is pumped to the spray pipe 412 by an external pump, and enters the guide hood under the guidance of the spray pipe 412. 41, and sprayed out from the spray nozzle 411, the special screen cleaning water is pre-sprayed evenly on both sides of the screen, focusing on covering the image area, and softening the ink during the screen conveying process. As the screen continues to be conveyed and moved, the control drive motor 511 drives the rotating disk 512 to rotate through the output end on one side. The gear teeth 513 on the rotating disk 512 move circumferentially. When the two rotating disks 512 rotate, the guide rod 52 is pulled to reciprocate linearly by the meshing transmission. With the reciprocating linear movement of the guide rod 52, under the connection of the connecting block 522, the brush plate 523 and the nylon brush 524 move horizontally and reciprocally linearly along the screen 31, thereby cleaning the screen 31.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for washing a screen printing machine, characterized by: The screen cleaning box (1) includes a screen inlet (11) on one side of its outer wall and a screen outlet (12) on the other side of its outer wall. The screen inlet (11) and the screen outlet (12) are on the same horizontal plane and overlap. A servo motor 1 (15) is provided on one side of the outer wall of the screen cleaning box (1) near the top of the screen outlet (12), and a servo motor 2 (16) is provided on one side of the outer wall of the screen cleaning box (1) near the bottom of the screen outlet (12). The screen cleaning box (1) is equipped with a screen conveying assembly (2), a cleaning agent spraying assembly (4), a screen brushing assembly (5), an upper rinsing assembly (6), a lower scraper assembly (7), and a screen limiting assembly (8). The upper rinsing assembly (6) includes two upper support blocks (61) and two upper support blocks (62) disposed on the inner wall of the screen cleaning box (1). The two upper support blocks (61) are located on one side of the two upper support blocks (62), and a lead screw (611) is rotatably connected between the two upper support blocks (61). One end of the lead screw (611) is fixedly connected to the output end of the servo motor (15). A [missing information] is provided between the two upper support blocks (62). The sliding column (621) has a screw nut seat on the lead screw (611) fixedly connected to a moving plate (63) by screws. The top of the moving plate (63) is symmetrically provided with two electric push rods (631) by bolts. The output ends of the two electric push rods (631) are fixedly connected to a flushing seat (64). The top of the flushing seat (64) is provided with a main flushing pipe (65) and a side flushing pipe (66). The main flushing pipe (65) is located on one side of the side flushing pipe (66). The lower scraper assembly (7) includes a lower support block 1 (71) and a lower support block 2 (72) disposed on the inner wall of the screen cleaning box (1). The lower support block 1 (71) is located on the horizontal side of the lower support block 2 (72), and a lead screw 2 (711) is rotatably connected to the outer wall of one side of the lower support block 1 (71). One end of the lead screw 2 (711) is fixedly connected to the output end of the servo motor 2 (16). A sliding column 2 (721) is disposed on the outer wall of one side of the lower support block 2 (72). One end of the sliding column 2 (721) is fixedly connected to the inner wall of the screen cleaning box (1). The screw nut seat on the lead screw 2 (711) is fixedly connected to an abutment seat (73) by screws. A scraper table (74) is slidably connected to the abutment seat (73).

2. The screen printing machine washing device according to claim 1, characterized in that: The top of the abutment seat (73) is provided with a through main flushing groove (731) and a side flushing groove (732). The main flushing groove (731) is located on one side of the side flushing groove (732). The interior of the abutment seat (73) is provided with a transverse groove (733) communicating with the side flushing groove (732). The bottom of the abutment seat (73) is provided with a drain groove (734) communicating with the transverse groove (733). The top of the abutment seat (73) is provided with a groove (735) communicating with the main flushing groove (731). A spring (736) is provided on the inner wall of the groove (735). A scraper platform (74) is provided at one end of the scraper platform (736). A cutting edge (741) is provided on one side wall of the scraper platform (74) near the top. A connecting plate (742) is provided at the center of the bottom of the scraper platform (74). A vertical plate (743) is provided at the bottom of the connecting plate (742). A horizontal plate (744) is provided at the center of one side outer wall of the vertical plate (743). A force-bearing plate (745) is provided on the outer wall of the horizontal plate (744) away from the vertical plate (743). A connecting cavity (737) is provided inside the abutment seat (73) for the connecting plate (742) to move.

3. The screen printing machine washing device according to claim 1, characterized in that: The screen conveying assembly (2) includes several limiting discs (21) rotating on the inner wall of the screen cleaning box (1). The limiting discs (21) are not only equally spaced in the axial direction, but also mirrored in the vertical direction. A conveying column (22) is provided at the center of one outer wall of the limiting disc (21). A rubber resistance sleeve (23) is provided on the outer circumferential surface of the conveying column (22). The screen conveying assembly (2) conveys the screen frame (3) through frictional resistance. A screen mesh (31) is provided on the inner wall of the screen frame (3), and the screen frame (3) and the rubber resistance sleeve (23) abut against each other.

4. The screen printing machine washing device according to claim 1, characterized in that: The cleaning agent spraying assembly (4) includes two guide hoods (41) symmetrically arranged on the inner side wall of the screen cleaning box (1). The bottom and top of the two guide hoods (41) are respectively provided with spray nozzles (411), and the bottom and top of the two guide hoods (41) are respectively provided with spray pipes (412). The spray pipes (412) pass through the screen cleaning box (1).

5. The screen printing machine washing device according to claim 1, characterized in that: The screen cleaning assembly (5) includes two fixed plates (51) symmetrically arranged on the inner side wall of the screen cleaning box (1). Two drive motors (511) are symmetrically arranged on the fixed plates (51). The output ends of the two drive motors (511) are fixedly connected to a rotating disk (512). Several gear teeth (513) are evenly spaced on the outer circumferential surface of the rotating disk (512). Two drain ports (13) and four guide holes (14) are symmetrically arranged on the outer side wall of the screen cleaning box (1). A guide rod (52) is movably passed through the inside of the guide hole (14). A worm gear (521) is arranged between the two guide rods (52). A connecting block (522) is arranged on the outer circumferential surface of the guide rod (52). A brush plate (523) is arranged on one side of the outer wall of the two connecting blocks (522). A nylon brush (524) is arranged on the outer wall of the brush plate (523) away from the connecting block (522).

6. The screen printing machine washing device according to claim 1, characterized in that: The screen printing plate limiting component (8) includes four storage covers (81) symmetrically arranged on the outer wall of the screen printing plate cleaning box (1). Each of the four storage covers (81) is provided with a cylinder (82) on the outer wall away from the screen printing plate cleaning box (1). The cylinder (82) is fixedly connected to a limiting post (821) through its output end. The limiting post (821) moves through the screen printing plate cleaning box (1).

7. A screen printing machine rinsing device according to claim 4, characterized in that: The screen cleaning box (1) is provided with a box cover (9) on the top. The top of the box cover (9) is provided with a movable groove (91) and a perforation (92). The movable groove (91) is located on one side of the perforation (92). The main flushing pipe (65) and the side flushing pipe (66) pass through the movable groove (91), and the spray pipe (412) passes through the perforation (92).

8. A screen printing machine rinsing device according to claim 5, characterized in that: The gear teeth (513) are arranged circumferentially at 90 degrees on the rotating disk (512), and the gear teeth (513) and the worm (521) mesh and drive each other.

9. A screen printing machine rinsing device according to claim 1, characterized in that: The first sliding rod (621) movably passes through the moving plate (63), and the second sliding rod (721) movably passes through the abutment seat (73).

10. A screen printing machine rinsing device according to claim 2, characterized in that: The vertical plate (743) and the force plate (745) are matched and fitted with the horizontal groove (733), and the top of the scraper table (74) and the cutting edge (741) are in contact with the bottom of the screen mesh (31).

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