A visual inspection device for printing rubber quality

Abstract

This invention belongs to the field of printing adhesive quality inspection technology, specifically disclosing a visual inspection device for printing adhesive quality. It includes a base box with an opening at the center of its upper end. Support plates are connected to both sides of the inner wall of the opening. Stops are connected between the two sides of each support plate, with one side of each stop contacting the inner wall of the opening. Rotating rods are rotatably connected to the center of one side of each support plate, and a connecting frame is connected between the two rotating rods. A guide plate is connected to the center of the upper end of one of the support plates. This invention solves the problem of manual flipping required in existing inspection devices through automated flipping and precise pallet displacement design, achieving efficient, accurate, and fully automated inspection of double-sided printing adhesive quality on PCB boards. This significantly improves production efficiency and product quality while reducing labor and production costs.

Description

Technical Field

[0001] This invention belongs to the field of printing quality inspection technology, and specifically relates to a visual inspection device for printing quality. Background Technology

[0002] In the modern electronics manufacturing industry, printed circuit boards (PCBs) serve as crucial carriers for electronic components. The quality of their adhesive printing directly impacts the performance and reliability of electronic products. As electronic products trend towards miniaturization and integration, the requirements for adhesive printing processes on PCBs are becoming increasingly stringent. Traditional manual visual inspection methods are no longer sufficient to meet the demands of high-precision and high-efficiency production. Visual inspection technology, with its non-contact, high-precision, and automated characteristics, has gradually become the mainstream method for adhesive printing quality inspection. By rapidly and accurately analyzing parameters such as the shape, position, and size of the adhesive printing on PCBs using visual inspection equipment, defects such as insufficient adhesive, excess adhesive, and uneven adhesive dots can be detected in a timely manner, effectively improving product quality and reducing production costs. Therefore, it has been widely applied and extensively researched in the field of electronics manufacturing.

[0003] Existing visual inspection technologies for PCB quality still have many shortcomings. Most current inspection devices lack automatic flipping functionality, requiring manual flipping for double-sided PCB inspection. This manual operation has significant drawbacks: firstly, manual flipping is inefficient and difficult to match the pace of large-scale production, severely restricting production efficiency; secondly, the stability and accuracy of manual operation are difficult to guarantee, easily leading to PCB displacement, surface scratches, and other problems during the flipping process. This not only affects inspection accuracy but may also damage the PCB, increasing production costs and reducing efficiency, while also increasing labor costs. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a visual inspection device for printing quality.

[0005] To achieve the above objectives, the present invention provides a visual inspection device for printing quality, including a base box with an opening at the center of the upper end of the base box. Support plates are connected to both sides of the inner wall of the opening, and a stop block is connected between the two sides of the two support plates. One side of the two stop blocks contacts the two sides of the inner wall of the opening, and a rotating rod is rotatably connected to the center of one side of the two support plates. A connecting frame is connected between the two rotating rods, and a guide plate is connected to the center of the upper end of one of the support plates. The guide plate is inclined.

[0006] In the above technical solution, a drive motor is further connected to one side of the lower end of the inner wall of the bottom box, and pulleys are connected to the outer wall of the output end of the drive motor and the middle of the outer wall of one of the rotating rods. The two pulleys are connected by a transmission belt.

[0007] In the above technical solution, furthermore, the lower part of both sides of the inner wall of the connecting frame is provided with a sliding groove, a slider is slidably connected in the middle of the inner wall of the two sliding grooves, a support plate is connected between the two sliders, and connecting grooves are evenly provided on both sides of the inner wall of the connecting frame corresponding to the upper part of the support plate. There are four sets of connecting grooves, and electric telescopic rods are connected inside the multiple connecting grooves. One end of two electric telescopic rods and one end of the other two electric telescopic rods are connected with a clamping plate. The clamping plate is in the shape of an inverted L-shape, and the upper part of the clamping plate is inclined. Connecting plates are connected to both sides of the lower end of the connecting frame.

[0008] In the above technical solution, the number of connecting plates is two sets. One connecting plate has a connecting motor connected to the middle of one side, and the other connecting plate has a connecting shaft connected to the middle of one side. Connecting gears are connected to the outer wall of the connecting motor and the outer wall of the connecting shaft. The upper ends of the two connecting gears are meshed with rack rods, and the upper ends of the two rack rods are respectively connected to the lower ends of the support plate.

[0009] In the above technical solution, further, each of the two support plates is connected to a slip ring on one side, and a stabilizing groove is opened in the middle of one side of the two slip rings. Stabilizing blocks are evenly connected on both sides of the connecting frame. The number of stabilizing blocks is four sets, wherein one end of two stabilizing blocks and one end of the other two stabilizing blocks are respectively located inside the two stabilizing grooves for sliding connection.

[0010] In the above technical solution, the upper end of the bottom box is connected to a detection frame, and the upper end of the inner wall of the detection frame is connected to a visual inspection device. The lower part of both sides of the detection frame is provided with a connection port. The lower part of the inner wall of one of the connection ports is connected to a first conveyor belt, and the lower part of the inner wall of the other connection port is connected to a second conveyor belt. The shape of one side of the guide plate is adapted to the shape of one side of the second conveyor belt.

[0011] In the above technical solution, two first cylinders are connected to one side of the detection frame. The two first cylinders are located above the first conveyor belt. One end of the two first cylinders extends through into the inside of the detection frame. One end of the two first cylinders is connected to a moving block. The upper sides of the moving block are connected to second cylinders. The lower ends of the two second cylinders extend through to the lower end of the moving block. The lower ends of the two second cylinders are connected to a connecting suction cup.

[0012] In the above technical solution, further, two fixing plates are connected to the other side of the detection frame. The two fixing plates are located above the second conveyor belt. A hydraulic cylinder is connected to the middle of one side of each of the two fixing plates. One end of each of the two hydraulic cylinders extends through to one side of the two fixing plates. A guide plate is connected to one end of each of the two hydraulic cylinders. One end of the guide plate is inclined. A baffle is connected to one end of each of the two guide plates. The shape of the baffle is inclined, and the shape of the lower end of the baffle is adapted to the shape of the guide plate.

[0013] In the above technical solution, guide rollers are embedded on one side of both guide plates, and guide grooves are opened on the guide plates corresponding to multiple guide rollers, with the guide rollers embedded inside the guide grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This device automates the entire process of PCB board inspection, from loading and double-sided testing to unloading, avoiding the time wasted by manual operation. Through the cooperation of the second conveyor belt and the guide plate, the PCB board can be quickly and accurately transported to the inspection position, ensuring that the inspection process is efficient and stable. Compared with the traditional manual inspection method, this device can work continuously without interruption, with a fast inspection speed, significantly improving production efficiency and meeting the needs of large-scale production.

[0016] By coordinating the drive motor and the connecting motor, the PCB board is automatically flipped and the tray is moved, reducing manual adjustment steps. The connecting frame can be quickly flipped 180 degrees under the drive motor, and the combination of slip ring and stabilizing block design ensures that the flipping process is smooth and reliable, avoiding PCB board displacement or damage. At the same time, the connecting frame is equipped with a sliding groove and slider structure, which can flexibly adjust the position of the tray, making the device more versatile and adaptable to meet diverse testing tasks.

[0017] By closely coordinating the flipping and tray displacement, the device can achieve double-sided inspection of PCB boards without omissions. Before inspection, the tray is automatically moved away to avoid obstructing the inspection area; after inspection, it is accurately reset to ensure a smooth and efficient inspection process, significantly shortening the inspection time of a single PCB board and improving inspection accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure proposed in this invention;

[0019] Figure 2 This is a cross-sectional view of the overall structure proposed in this invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the support plate proposed in this invention;

[0021] Figure 4This is a schematic diagram of the installation structure of the tray proposed in this invention;

[0022] Figure 5 This is a schematic diagram of the installation structure of the pulley proposed in this invention;

[0023] Figure 6 This is a schematic diagram of the mounting structure of the slider proposed in this invention;

[0024] Figure 7 This is a schematic diagram of the mounting structure of the connecting gear proposed in this invention;

[0025] Figure 8 This is a schematic diagram of the installation structure of the hydraulic cylinder proposed in this invention;

[0026] Figure 9 This is a schematic diagram of the installation structure of the baffle proposed in this invention;

[0027] Figure 10 This is a schematic diagram of the installation structure of the guide plate proposed in this invention.

[0028] In the diagram: 1. Base box; 2. Opening; 3. Support plate; 4. Stop block; 5. Rotating rod; 6. Connecting frame; 7. Drive motor; 8. Pulley; 9. Transmission belt; 10. Slide groove; 11. Slider; 12. Support plate; 13. Connecting groove; 14. Electric telescopic rod; 15. Clamping plate; 16. Connecting plate; 17. Connecting motor; 18. Connecting shaft; 19. Connecting gear; 20. Rack and pinion; 21. Slip ring; 22. Detection frame; 23. Vision inspection equipment; 24. Connection port; 25. First conveyor belt; 26. First cylinder; 27. Moving block; 28. Second cylinder; 29. ​​Connecting suction cup; 30. Second conveyor belt; 31. Fixed plate; 32. Hydraulic cylinder; 33. Guide plate; 34. Guide roller; 35. Material guide plate; 36. Baffle. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1-10The illustrated visual inspection device for printing adhesive quality includes a base box 1. An opening 2 is located at the center of the upper end of the base box 1, facilitating the rotation of a connecting frame 6. Support plates 3 are connected to both sides of the inner wall of the opening 2, fixing the connecting frame 6 so that it rotates between the two support plates 3. Stoppers 4 are connected between the two sides of the two support plates 3 to prevent the interior of the base box 1 from being exposed. One side of each stopper 4 contacts the inner wall of the opening 2. Rotating rods 5 are rotatably connected to the center of one side of each support plate 3, fixing the connecting frame 6 and ensuring stability during rotation. The connecting frame 6 is connected between the two rotating rods 5, fixing a pallet 12. A guide plate 35 is connected to the center of the upper end of one of the support plates 3, guiding the PCB board above the second conveyor belt 30 to the pallet 12. The shape of 5 is inclined. A drive motor 7 is connected to one side of the lower end of the inner wall of the base box 1, which can drive the pulley 8 at the output end of the drive motor 7 to rotate. The pulley 8 and the transmission belt 9 drive the rotating rod 5 to rotate, which facilitates the rotation of the connecting frame 6. The outer wall of the output end of the drive motor 7 and the middle of the outer wall of one of the rotating rods 5 are both connected to pulleys 8. The two pulleys 8 are connected by transmission belt 9. Slip rings 21 are connected to one side of the two support plates 3 to ensure the stability of the connecting frame 6 when it rotates. A stabilizing groove is opened in the middle of one side of the two slip rings 21. Stabilizing blocks are evenly connected to both sides of the connecting frame 6. When the connecting frame 6 rotates, the stabilizing blocks slide inside the stabilizing groove, which improves the stability of the connecting frame 6 when it flips. There are four sets of stabilizing blocks. One end of two stabilizing blocks and one end of the other two stabilizing blocks are slidably connected inside the two stabilizing grooves respectively.

[0031] The opening 2 facilitates the smooth flipping of the connecting frame 6. The drive motor 7 drives the pulley 8 at its output end to rotate, and the pulley 8 and the transmission belt 9 drive the rotating rod 5 to rotate. When the rotating rod 5 rotates, it can drive the connecting frame 6 to rotate. While the connecting frame 6 is flipping, the stabilizing block slides inside the stabilizing groove. The slip ring 21 can greatly improve the stability of the connecting frame 6 when it is flipped, ensuring that the connecting frame 6 will not shift or shake during the flipping process, thus ensuring the accuracy of the PCB board detection position.

[0032] The lower part of both sides of the inner wall of the connecting frame 6 is provided with a sliding groove 10. The slider 11 slides inside the sliding groove 10, thereby adjusting the position of the tray 12. The slider 11 is slidably connected to the middle of the inner wall of the two sliding grooves 10, and the tray 12 is connected between the two sliders 11. When the PCB board is above the tray 12, its upper surface is inspected by the vision inspection device 23. After the inspection is completed, the connecting frame 6 drives the tray 12 to flip, and then the tray 12 is moved away by the slider 11, so that the other side of the PCB board can be inspected. The inner walls of the connecting frame 6 are evenly provided with connecting slots 13 on both sides corresponding to the upper part of the tray 12, so as to facilitate the placement of the electric telescopic rod 14. There are four sets of connecting slots 13, and electric telescopic rods 14 are connected inside the multiple connecting slots 13. Two of the electric telescopic rods 14 are connected to one end of the other two electric telescopic rods 14 with clamps 15. The upper end of the clamps 15 is set in an inclined shape, which can... The material above the guide plate 35 is guided to the pallet 12. The clamping plate 15 is in the shape of an inverted L-shape. The lower ends of the connecting frame 6 are connected to the two sides of the connecting plate 16. There are two sets of connecting plates 16. One of the connecting plates 16 is connected to the middle of one side of the connecting motor 17, which can drive one of the connecting gears 19 to rotate, thereby driving the rack rod 20 and the pallet 12 to move to one side. The other connecting plate 16 is connected to the middle of one side of the connecting shaft 18. The outer wall of the connecting motor 17 and the outer wall of the connecting shaft 18 are both connected to the connecting gears 19. When the pallet 12 moves to one side, both rack rods 20 move to one side. The connecting gears 19 on the outer wall of the connecting shaft 18 rotate under the movement of the upper rack rod 20, which can ensure the stability of the pallet 12 when it moves. The upper ends of the two connecting gears 19 are meshed with the rack rods 20. The upper ends of the two rack rods 20 are respectively connected to the lower ends of the pallet 12.

[0033] The slider 11 slides within the groove 10, allowing for flexible adjustment of the position of the tray 12 according to inspection requirements. This enables the tray 12 to move horizontally within the connecting frame 6. When the PCB board is positioned above the tray 12, the visual inspection device 23 located on the upper inner wall of the inspection frame 22 can perform a clear and comprehensive inspection of its upper surface. After completing the inspection of the upper surface of the PCB board, the connecting frame 6 rotates the tray 12 180 degrees. Subsequently, the connecting motor 17 drives the connecting gear 19 to rotate, which in turn drives the rack 20 and the tray 12 to move horizontally within the inner wall of the connecting frame 6. The tray 12 is moved away by the slider 11 sliding within the groove 10, creating an unobstructed inspection space for the other side of the PCB board. Four sets of connecting slots 13 are evenly spaced on both sides of the inner wall of the connecting frame 6, corresponding to the area above the tray 12. Their dimensions match those of the electric telescopic rod 14, providing a stable installation position for the electric telescopic rod 14. The clamping plate 15 has a unique... The inverted L-shaped structure and the inclined shape at the top not only allow the material above the guide plate 35 to be smoothly guided to the pallet 12, but also reliably clamp and fix the PCB board from both sides after it reaches the pallet 12. The connecting motor 17 connected to the middle of one side of one connecting plate 16 drives one of the connecting gears 19 to rotate, which in turn drives the rack rod 20 meshing with it and the pallet 12 to move to one side. The connecting gear 19 connected to the outer wall of the connecting shaft 18 connected to the middle of one side of the other connecting plate 16 cooperates with the upper rack rod 20. When the pallet 12 moves to one side, both rack rods 20 move to one side, and the connecting gear 19 on the outer wall of the connecting shaft 18 rotates under the movement of the upper rack rod 20. This ensures the stability of the pallet 12 during movement and prevents it from shaking or jamming, so that the PCB board can accurately reach the predetermined position.

[0034] A detection frame 22 is connected to the upper end of the base box 1. Visual inspection devices 23 are connected to the upper inner walls of the detection frame 22. Connection ports 24 are provided on the lower parts of both sides of the detection frame 22. PCB boards are fed or discharged through two connection ports 24. A first conveyor belt 25 is connected to the lower inner wall of one connection port 24, which can remove the visually inspected PCB board. A second conveyor belt 30 is connected to the lower inner wall of the other connection port 24, which transports the PCB board to be inspected onto the pallet 12. The shape of one side of the guide plate 35 is adapted to the shape of one side of the second conveyor belt 30. Two first cylinders 26 are connected to one side of the detection frame 22. The two first cylinders 26 are located above the first conveyor belt 25. One end of the two first cylinders 26 extends through into the interior of the detection frame 22. One end of the two first cylinders 26 is connected to a moving block 27. The upper ends of the moving block 27 are connected to two second cylinders 28 on both sides. The lower ends of the two second cylinders 28 extend through to the lower end of the moving block 27. The lower ends of the two second cylinders 28 are connected to a connecting... The suction cup 29 is used to pick up the PCB board above the tray 12. Then, the first cylinder 26 and the second cylinder 28 move the inspected PCB board above the first conveyor belt 25. Two fixing plates 31 are connected to the other side of the inspection frame 22, located above the second conveyor belt 30. Hydraulic cylinders 32 are connected to the middle of one side of each fixing plate 31, with one end extending through to one side of each fixing plate 31. One end of each hydraulic cylinder 32 is connected to a guide... The guide plate 33 allows the material to be positioned above the second conveyor belt 30. One end of the guide plate 33 is inclined. One end of each guide plate 33 is connected to a baffle 36 to prevent the PCB board from shifting above the guide plate 35. The baffle 36 is inclined and its lower end is adapted to the shape of the guide plate 35. Guide rollers 34 are embedded on one side of each of the two guide plates 33. Guide grooves are opened on each guide plate 33 corresponding to multiple guide rollers 34, and the guide rollers 34 are embedded in the guide grooves.

[0035] The visual inspection device 23 connected to the upper inner wall of the inspection frame 22 is equipped with a high-resolution image sensor and advanced image processing algorithms. It can quickly and accurately capture image information of the adhesive on the PCB board surface and accurately inspect the adhesive quality. The first conveyor belt 25 connected to the lower inner wall of one of the connection ports 24 is made of non-slip and wear-resistant material, which can smoothly move the visually inspected PCB board out of the device and transport it to the subsequent process. The second conveyor belt 30 connected to the lower inner wall of the other connection port 24 is responsible for transporting the PCB board to be inspected to the pallet 12. Its conveying speed can be adjusted according to the inspection process to ensure that the PCB board can enter the inspection position accurately and in a timely manner. The shape of one side of the guide plate 35 is adapted to the shape of one side of the second conveyor belt 30 to ensure that the PCB board can smoothly transition from the second conveyor belt 30 to the guide plate 35. The first cylinder 26 connected to one side of the inspection frame 22 is located on the first conveyor belt 25. Above, the moving block 27 can be moved up and down inside the detection frame 22 through precise air pressure control. The connecting suction cup 29 connected to the lower end of the second cylinder 28 connected to the upper two sides of the moving block 27 adopts the vacuum adsorption principle and can reliably adsorb the PCB board above the tray 12. Through the coordinated action of the first cylinder 26 and the second cylinder 28, the PCB board that has been inspected can be accurately moved above the first conveyor belt 25. The two fixed plates 31 connected to one side of the detection frame 22 are located above the second conveyor belt 30 and provide installation support for the hydraulic cylinder 32. The hydraulic cylinder 32 connected to the middle of one side of the two fixed plates 31 can drive the guide plate 33 to adjust its position according to the conveying situation of the PCB board. One end of the guide plate 33 is set in an inclined shape, and the guide roller 34 embedded on its surface can contact the surface of the PCB board and play a guiding and assisting role in the conveying process of the PCB board, so that the material is always in the correct position above the second conveyor belt 30. The baffle 36 connected to one end of the two guide plates 33 is adapted to the shape of the guide plate 35, which can effectively prevent the PCB board from shifting above the guide plate 35, and ensure that the PCB board can be accurately guided to the tray 12, providing a reliable guarantee for subsequent inspection work.

[0036] Working principle: When using the device, the PCB board to be tested is conveyed by the second conveyor belt 30. The hydraulic cylinder 32 on the fixed plate 31 drives the guide plate 33 to adjust its position. The guide roller 34 on the guide plate 33 assists in the smooth conveying of the PCB board. At the same time, the baffle 36 prevents the PCB board from shifting on the guide plate 35, ensuring the stability and accuracy of the entire feeding process, so that the PCB board is located in the middle above the second conveyor belt 30. When the PCB board runs to the end of the second conveyor belt 30, under the guidance of the baffle 36 and the guide plate 35, it enters the interior of the connecting frame 6. The clamping plate 15 on the side near the guide plate 35 guides the PCB board, so that the PCB board is conveyed above the pallet 12. The electric telescopic rods 14 on both sides of the inner wall of the connecting frame 6 extend, driving the two clamping plates 15 to clamp and fix the PCB board on the pallet 12. The upper end of the clamping plate 15 is inclined, which can help guide the PCB board to fall smoothly on the pallet 12, ensuring the accurate position of the PCB board and preparing for subsequent testing.

[0037] With the connecting frame 6 in a horizontal position, the vision inspection device 23 located at the upper end of the inner wall of the inspection frame 22 starts to work. The vision inspection device 23 performs image acquisition and analysis on the printing quality of the upper surface of the PCB board on the tray 12. Through the preset detection algorithm and standard, it judges whether there are defects in the printing, such as insufficient glue, overflow glue, uneven glue spots, etc.

[0038] After the PCB board surface inspection is completed, the drive motor 7 starts, and its output end drives the pulley 8 to rotate. Through the transmission belt 9, the rotating rod 5 rotates, which in turn drives the connecting frame 6 to rotate through the drive motor 7, achieving a 180° flip so that the bottom surface of the PCB board faces upward. Before the connecting frame 6 flips, the connecting motor 17 starts in advance, driving the connecting gear 19 to rotate, which in turn moves the rack rod 20. Under the drive of the rack rod 20, the support plate 12 slides to one side along the sliding groove 10 on the inner wall of the connecting frame 6. Since the PCB board is firmly held by the clamping plate 15, its position remains unchanged during the movement of the support plate 12, thus avoiding the support plate 12 from obstructing the PCB board. This allows the vision inspection equipment 23 to perform unobstructed printing quality inspection on the bottom surface of the PCB board. During the flipping of the connecting frame 6, the slip ring 21 and the stabilizing block cooperate with each other. The stabilizing block slides in the stabilizing groove to ensure the stability of the connecting frame 6 during flipping and prevent the PCB board from shifting.

[0039] After the double-sided inspection of the PCB board is completed, the drive motor 7 starts again, driving the connecting frame 6 to rotate 180° in the opposite direction, so that the PCB board flips back to its initial state and is positioned above the tray 12 again. At this time, the tray 12 is reset under the drive of the rack and pinion 20 and aligned with the bottom of the PCB board, ensuring that the PCB board falls smoothly on the tray 12. Then, the first cylinder 26 and the second cylinder 28 work together to drive the connecting suction cup 29 to move downward and pick up the PCB board. Then, the first cylinder 26 and the second cylinder 28 retract, moving the inspected PCB board onto the first conveyor belt 25, which then transports the PCB board to the subsequent process.

[0040] 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 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 claimed invention.

Claims

1. A visual inspection device for printing quality, comprising a base box (1), characterized in that, The bottom box (1) has an opening (2) in the middle of the upper end. Support plates (3) are connected to both sides of the inner wall of the opening (2). Blocks (4) are connected between the two sides of the two support plates (3). One side of the two blocks (4) contacts the two sides of the inner wall of the opening (2). Rotating rods (5) are rotatably connected to the middle of one side of the two support plates (3). A connecting frame (6) is connected between the two rotating rods (5). A guide plate (35) is connected to the middle of the upper end of one of the support plates (3). The guide plate (35) is set in an inclined shape. The lower part of both sides of the inner wall of the connecting frame (6) is provided with a sliding groove (10). A slider (11) is slidably connected in the middle of the inner wall of the two sliding grooves (10). A support plate (12) is connected between the two sliders (11). The inner wall of the connecting frame (6) is provided with a connecting groove (13) evenly above the support plate (12) on both sides. There are four sets of connecting grooves (13). Each of the multiple connecting grooves (13) is connected to an electric telescopic rod (14). One end of two of the electric telescopic rods (14) is connected to the other two electric telescopic rods. One end of each telescopic rod (14) is connected to a clamp (15). The clamp (15) is in the shape of an inverted L-shape. The upper end of the clamp (15) is inclined. Both sides of the lower end of the connecting frame (6) are connected to connecting plates (16). There are two sets of connecting plates (16). One connecting plate (16) is connected to a connecting motor (17) in the middle of one side, and the other connecting plate (16) is connected to a connecting shaft (18) in the middle of one side. The outer wall of the connecting motor (17) is connected to the connecting shaft (18). One side of the outer wall is connected to a connecting gear (19), and the upper ends of the two connecting gears (19) are meshed with rack rods (20). The upper ends of the two rack rods (20) are respectively connected to the lower ends of the support plate (12). One side of each of the two support plates (3) is connected to a slip ring (21), and a stabilizing groove is opened in the middle of one side of each of the two slip rings (21). Stabilizing blocks are evenly connected to both sides of the connecting frame (6). There are four sets of stabilizing blocks, in which one end of two stabilizing blocks and one end of the other two stabilizing blocks are respectively located at... The two stabilizing troughs are internally slidably connected. The upper end of the bottom box (1) is connected to a detection frame (22). The upper end of the inner wall of the detection frame (22) is connected to a visual inspection device (23). The lower part of both sides of the detection frame (22) is provided with a connection port (24). The lower part of the inner wall of one of the connection ports (24) is connected to a first conveyor belt (25), and the lower part of the inner wall of the other connection port (24) is connected to a second conveyor belt (30). The shape of one side of the guide plate (35) is adapted to the shape of one side of the second conveyor belt (30).

2. The visual inspection device for printing adhesive quality according to claim 1, characterized in that, A drive motor (7) is connected to one side of the lower end of the inner wall of the bottom box (1). The outer wall of the output end of the drive motor (7) and the middle of the outer wall of one of the rotating rods (5) are both connected to pulleys (8). The two pulleys (8) are connected by a transmission belt (9).

3. The visual inspection device for printing adhesive quality according to claim 1, characterized in that, Two first cylinders (26) are connected to one side of the detection frame (22). The two first cylinders (26) are located above the first conveyor belt (25). One end of the two first cylinders (26) extends through into the inside of the detection frame (22). One end of the two first cylinders (26) is connected to a moving block (27). The upper ends of the moving block (27) are connected to two second cylinders (28). The lower ends of the two second cylinders (28) extend through to the lower end of the moving block (27). The lower ends of the two second cylinders (28) are connected to a connecting suction cup (29).

4. The visual inspection device for printing quality according to claim 1, characterized in that, Two fixing plates (31) are connected to the other side of the detection frame (22). The two fixing plates (31) are located above the second conveyor belt (30). A hydraulic cylinder (32) is connected to the middle of one side of the two fixing plates (31). One end of the two hydraulic cylinders (32) extends through to one side of the two fixing plates (31). One end of the two hydraulic cylinders (32) is connected to a guide plate (33). One end of the guide plate (33) is inclined. One end of the two guide plates (33) is connected to a baffle (36). The shape of the baffle (36) is inclined. The shape of the lower end of the baffle (36) is adapted to the shape of the guide plate (35).

5. The visual inspection device for printing adhesive quality according to claim 4, characterized in that, Guide rollers (34) are embedded on one side of both guide plates (33). Guide grooves are opened on the guide plates (33) corresponding to multiple guide rollers (34), and the guide rollers (34) are embedded in the guide grooves.

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