Shuttle screen printing machine with automatic positioning and camera detection function

Abstract

The application discloses a shuttle type screen printing machine with automatic positioning and camera detection functions, which comprises a screen printing machine body, the screen printing machine body comprises a positioning section, a printing section and a camera detection section, a conveying belt is horizontally installed above the screen printing machine body and penetrates through the positioning section, the printing section and the camera detection section, a positioning mechanism is installed above the positioning section, portal frames are arranged at both ends of the top of the camera detection section, and detection cameras are arranged at both ends of the bottom of the portal frames. The positioning section is arranged at the front end of the printing section, the accurate position of glass on the conveying belt is ensured through cooperation of a positioning module and a positioning wheel, and thus the accuracy during printing and detection is ensured. Meanwhile, the camera detection section is arranged at the rear end of the printing section, the detection camera is installed on the portal frame, the position of the detection camera is adjusted through a guide rail and a bidirectional adjusting screw rod, and thus the accuracy during detection and shooting is ensured.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel printing technology, specifically a shuttle screen printing machine with automatic positioning and camera detection functions. Background Technology

[0002] Screen printing refers to the process of using a screen as a printing plate and creating a screen printing plate with images and text through a photosensitive plate-making method. It utilizes the basic principle 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. During printing, ink is poured into one end of the screen printing plate, and a squeegee applies pressure to the ink areas while moving at a constant speed towards the other end of the screen printing plate. As it moves, the ink is forced through the mesh openings in the image areas onto the substrate by the squeegee.

[0003] However, current screen printing machines require the glass plates to undergo a separate inspection process after the printing operation is completed to ensure the printing quality, which increases production costs, reduces production efficiency, and easily causes damage to the glass plates during transportation. Summary of the Invention

[0004] The purpose of this invention is to provide a shuttle screen printing machine with automatic positioning and camera detection functions to solve the problems mentioned in the background art. In current screen printing machines, after the printing operation is completed, the glass plate needs to undergo a separate inspection process to ensure the printing quality, which increases production costs, reduces production efficiency, and easily causes damage to the glass plate during transportation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a shuttle screen printing machine with automatic positioning and camera detection functions, comprising a screen printing machine body, the screen printing machine body including a positioning section, a printing section and a camera detection section, a conveyor belt horizontally installed above the screen printing machine body, and the conveyor belt passing through the positioning section, the printing section and the camera detection section, a positioning mechanism installed above the positioning section, and gantry frames provided at both ends above the camera detection section, and detection cameras provided at both ends at the bottom of the gantry frames.

[0006] Preferably, the front end of the positioning section is provided with a glass feed port, and a screen printing machine operation screen is installed on one side of the positioning section.

[0007] Preferably, a glass outlet is provided at the tail end of the camera detection section, and a camera detection display screen is installed on one side of the camera detection section.

[0008] Preferably, both ends of the positioning mechanism are vertically mounted with positioning brackets, and a positioning crossbar is horizontally mounted between the positioning brackets.

[0009] Preferably, X-axis positioning modules are horizontally installed at both ends of the positioning crossbar, and Y-axis positioning modules are horizontally installed at the middle positions of both ends of the positioning crossbar. Positioning wheels are installed at the bottom of the X-axis positioning modules and the Y-axis positioning modules. The positioning modules are assembled from servo motors and ball screws, which can precisely control the movement position of the positioning wheels, thereby ensuring the accuracy of the glass position on the conveyor belt.

[0010] Preferably, guide rails are installed on both sides above the camera detection section, and the bottom end of the gantry is mounted on the guide rails via a slider, which facilitates the adjustment of the Y-axis position of the detection camera.

[0011] Preferably, an adjustment mechanism is horizontally installed below the gantry frame, and a bidirectional adjustment screw is horizontally installed inside the adjustment mechanism via a bearing, with an adjustment handle installed at the end of the bidirectional adjustment screw.

[0012] Preferably, both ends of the bidirectional adjusting screw are threadedly connected to adjusting seats, and the bottom end of the adjusting seat extends to the outside of the adjusting mechanism and is equipped with a detection camera.

[0013] Preferably, a U-shaped limiting clamp is installed on the adjusting seat, and the U-shaped limiting clamp is clamped at the bottom of the adjusting mechanism. The horizontal movement of the detection camera is limited by the U-shaped limiting clamp to prevent it from rotating synchronously with the rotation of the bidirectional adjusting screw.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by setting a positioning section at the front end of the printing section, the positioning module and the positioning wheel are used to ensure the precise position of the glass on the conveyor belt, thereby ensuring the accuracy of printing and inspection; at the same time, by setting a camera inspection section at the rear end of the printing section, the inspection camera is mounted on the gantry and its position is adjusted by the guide rail and the bidirectional adjusting screw, ensuring the accuracy of inspection and shooting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the positioning mechanism structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the camera detection structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the adjustment mechanism of the present invention.

[0019] In the diagram: 1. Screen printing machine body; 2. Positioning section; 3. Glass feed inlet; 4. Screen printing machine operation screen; 5. Conveyor belt; 6. Positioning mechanism; 7. Printing section; 8. Camera detection section; 9. Glass discharge port; 10. Gantry frame; 11. Positioning bracket; 12. Positioning crossbar; 13. X-axis positioning module; 14. Y-axis positioning module; 15. Positioning wheel; 16. Guide rail; 17. Camera detection display screen; 18. Adjustment mechanism; 19. Detection camera; 20. Adjustment handle; 21. Bidirectional adjusting screw; 22. Adjustment seat; 23. U-shaped limit clamp. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 An embodiment of the present invention provides a shuttle screen printing machine with automatic positioning and camera detection functions, including a screen printing machine body 1. The screen printing machine body 1 includes a positioning section 2, a printing section 7 and a camera detection section 8. A glass feed port 3 is provided at the front end of the positioning section 2, and a screen printing machine operation screen 4 is installed on one side of the positioning section 2. A glass discharge port 9 is provided at the rear end of the camera detection section 8, and a camera detection display screen 17 is installed on one side of the camera detection section 8.

[0022] A conveyor belt 5 is horizontally installed above the screen printing machine body 1, and the conveyor belt 5 passes through the positioning section 2, the printing section 7 and the camera detection section 8. It is used to horizontally transport the glass to ensure the continuity of the entire screen printing process. A positioning mechanism 6 is installed above the positioning section 2. Positioning brackets 11 are vertically installed at both ends of the positioning mechanism 6. A positioning crossbar 12 is horizontally installed between the positioning brackets 11. X-axis positioning modules 13 are horizontally installed at both ends of the positioning crossbar 12. Y-axis positioning modules 14 are horizontally installed at the middle position of both ends of the positioning crossbar 12. Positioning wheels 15 are installed at the bottom of the X-axis positioning modules 13 and the Y-axis positioning modules 14. The positioning modules are assembled from servo motors and ball screws, which can accurately control the movement position of the positioning wheels 15, thereby ensuring the accuracy of the glass position on the conveyor belt 5.

[0023] Gantry 10 is installed at both ends above the camera detection section 8, and guide rails 16 are installed on both sides above the camera detection section 8. The bottom end of the gantry 10 is mounted on the guide rail 16 by a slider, which facilitates the adjustment of the Y-axis position of the detection camera 19.

[0024] Both ends of the bottom of the gantry frame 10 are equipped with detection cameras 19. An adjustment mechanism 18 is horizontally installed below the gantry frame 10. Inside the adjustment mechanism 18, a bidirectional adjustment screw 21 is horizontally installed via bearings. Both ends of the bidirectional adjustment screw 21 are threadedly connected to adjustment seats 22. The bottom end of the adjustment seat 22 extends to the outside of the adjustment mechanism 18 and is equipped with a detection camera 19. The detection camera 19 is a 2000W area array camera. An adjustment handle 20 is installed at the end of the bidirectional adjustment screw 21.

[0025] A U-shaped limit clamp 23 is installed on the adjustment seat 22, and the U-shaped limit clamp 23 is clamped at the bottom of the adjustment mechanism 18. The horizontal movement of the detection camera 19 is limited by the U-shaped limit clamp 23 to prevent it from rotating synchronously with the rotation of the bidirectional adjustment screw 21.

[0026] In this embodiment, the glass raw material is first placed onto the conveyor belt 5 through the glass inlet 3. The position of the glass raw material is precisely adjusted by the positioning mechanism 6 installed on the positioning section 2. Specifically, the X-axis positioning module 13 and the Y-axis positioning module 14 are adjusted so that the positioning wheels 15 at their ends are positioned on the side and end of the glass raw material, thus restricting its position. Then, the glass raw material is conveyed to the printing section 7 via the conveyor belt. Since the frame of the printing section 7 is a fixed structure and cannot be fine-tuned, the positioning mechanism 6 is needed to ensure the accuracy of the glass raw material's position. Finally, the printed glass raw material is conveyed to the camera detection section 8 via the conveyor belt 5. The camera detects the position of the glass raw material on the conveyor belt 5. The gantry 10 on section 8 is adjusted for Y-axis position on guide rail 16. The detection camera 19 at the bottom of the gantry 10 rotates to the adjustment handle 20, which drives the bidirectional adjustment screw 21 to rotate synchronously. This, in turn, drives the detection camera 19 to adjust its position on the X-axis through the adjustment seat 22, thus ensuring that the four detection cameras 19 are facing the four corners of the glass raw material. Next, the four detection cameras 19 take pictures of the four corners of the glass raw material (visual processing time is 200ms for image acquisition and 300ms for algorithm processing, which is about 0.5s). The deviation data is processed and displayed on the screen, and simultaneously transmitted to the screen printing machine operation screen. The screen printing machine operation screen controls the movement of each positioning point to reduce the deviation based on the received deviation data. The deviation range can be set independently.

Claims

1. A shuttle screen printer with automatic positioning and camera detection, characterized in that: The application relates to a screen printing machine, which comprises a screen printing machine body (1) comprising a positioning section (2), a printing section (7) and a camera detection section (8), a conveying belt (5) is horizontally arranged above the screen printing machine body (1) and penetrates through the positioning section (2), the printing section (7) and the camera detection section (8), a positioning mechanism (6) is arranged above the positioning section (2), gantries (10) are arranged at two ends of the camera detection section (8), detection cameras (19) are arranged at the two ends of the bottom of the gantries (10), positioning supports (11) are vertically arranged at the two ends of the positioning mechanism (6), a positioning cross rod (12) is horizontally arranged between the positioning supports (11), X-direction positioning modules (13) are horizontally arranged at the two ends of the two sides of the positioning cross rod (12), Y-direction positioning modules (14) are horizontally arranged at the middle positions of the two ends of the positioning cross rod (12), positioning wheels (15) are arranged at the bottom of the X-direction positioning modules (13) and the Y-direction positioning modules (14), guide rails (16) are arranged at the two sides above the camera detection section (8), the bottom ends of the gantries (10) are arranged on the guide rails (16) through sliding blocks, an adjusting mechanism (18) is horizontally arranged below the gantries (10), a bidirectional adjusting screw rod (21) is horizontally arranged in the adjusting mechanism (18) through a bearing, an adjusting handle (20) is arranged at the end of the bidirectional adjusting screw rod (21), adjusting seats (22) are threadedly connected at the two ends of the bidirectional adjusting screw rod (21), the detection cameras (19) are arranged at the bottom ends of the adjusting seats (22) and extend to the outside of the adjusting mechanism (18), U-shaped limiting clamps (23) are arranged on the adjusting seats (22) and are clamped at the bottom of the adjusting mechanism (18), the U-shaped limiting clamps (23) limit the horizontal movement of the detection cameras (19), the adjusting seats (22) drive the detection cameras (19) to adjust the positions on the X-axis, so that the four detection cameras (19) face the four corners of the glass raw material, the four detection cameras (19) take photos of the four corners of the glass raw material, deviation data are displayed on a camera detection display screen through processing and are transmitted to a screen printing machine operation screen, the screen printing machine operation screen controls the movement of each positioning point according to the received deviation data to reduce the deviation, and the deviation range can be autonomously set.

2. The automatic positioning and camera detection function shuttle screen printing machine according to claim 1, characterized in that: A glass feeding port (3) is arranged at the front end of the positioning section (2), and a screen printing machine operation screen (4) is arranged on one side of the positioning section (2).

3. The automatic positioning and camera detection shuttle screen printer of claim 1, wherein: A glass discharging port (9) is arranged at the tail end of the camera detection section (8), and a camera detection display screen (17) is arranged on one side of the camera detection section (8).

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