Visual inspection device for glue printing quality

Abstract

The invention belongs to the technical field of printing glue quality detection, and particularly discloses a printing glue quality visual detection device which comprises a bottom box, an opening is formed in the middle of the upper end of the bottom box, supporting plates are connected to the two sides of the inner wall of the opening, and check blocks are connected between the two sides of the two supporting plates. And one sides of the two check blocks make contact with the two sides of the inner wall of the opening correspondingly, rotating rods are rotationally connected to the middles of one sides of the two supporting plates, a connecting frame is connected between the two rotating rods, and a material guiding plate is connected to the middle of the upper end of one supporting plate. The problem that an existing detection device needs to be turned over manually is solved, efficient, accurate and full-automatic detection of the double-face glue printing quality of the PCB is achieved, the production efficiency and the product quality are remarkably improved, and the labor cost and the production cost are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber printing quality detection, and in particular relates to a rubber printing quality visual detection device. Background Art

[0002] In the modern electronics manufacturing industry, printed circuit boards (PCBs) are important carriers of electronic components. The quality of their printed glue directly affects the performance and reliability of electronic products. As electronic products develop towards miniaturization and integration, the requirements for glue printing on PCBs are becoming increasingly stringent. Traditional manual visual inspection methods can no longer meet the high-precision and high-efficiency production needs. Visual inspection technology, with its non-contact, high-precision, and automated characteristics, has gradually become the mainstream means of glue printing quality inspection. Through visual inspection equipment, the shape, position, size and other parameters of PCB glue printing can be quickly and accurately analyzed. Defects such as glue shortage, glue overflow, and uneven glue dots can be discovered in a timely manner, effectively improving product quality and reducing production costs. Therefore, it has been widely used and deeply studied in the field of electronics manufacturing.

[0003] Existing visual inspection technology for printed glue quality still has many shortcomings. Currently, most inspection devices lack automatic flipping capabilities, requiring manual flipping for double-sided PCB inspection. This manual operation has significant drawbacks. On the one hand, manual flipping is inefficient and difficult to adapt to the pace of large-scale production, severely restricting production efficiency. On the other hand, manual operation is difficult to ensure stability and accuracy, and the flipping process can easily lead to PCB board position deviation and surface scratches. This not only affects inspection accuracy but can also damage the PCB, increasing production costs, reducing production efficiency, and increasing labor costs. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a visual inspection device for printing rubber quality.

[0005] To achieve the above objectives, the present invention provides a visual inspection device for printing rubber quality, comprising a bottom box, an opening being opened in the middle of the upper end of the bottom box, support plates being connected on both sides of the inner wall of the opening, blocks being connected between the two support plates on both sides, one side of the two blocks being in contact with the two sides of the inner wall of the opening respectively, a rotating rod being rotatably connected in the middle of one side of the two support plates, a connecting frame being connected between the two rotating rods, a material guide plate being connected in the middle of the upper end of one of the support plates, and the material guide plate being arranged in an inclined shape.

[0006] In the above technical solution, further, a driving motor is 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 driving motor and the middle of the outer wall of one of the rotating rods, and the two pulleys are connected by a transmission belt.

[0007] In the above technical solution, further, sliding grooves are provided on the lower parts of both sides of the inner wall of the connecting frame, and sliders are slidably connected to the middle parts of the inner walls of the two sliding grooves, and a support plate is connected between the two sliders. Connecting grooves are evenly provided above the corresponding support plates on both sides of the inner wall of the connecting frame, and the number of the connecting grooves is four groups, and electric telescopic rods are connected to the inside of multiple connecting grooves, wherein one end of two of the electric telescopic rods and one end of the other two electric telescopic rods are connected to a splint, the shape of the splint is an inverted L-shaped structure, the shape of the upper end of the splint is inclined, and connecting plates are connected to both sides of the lower end of the connecting frame.

[0008] In the above technical solution, further, the number of the connecting plates is two groups, one of which is connected to a connecting motor in the middle of one side of the connecting plate, and the other is connected to a connecting shaft in the middle of one side of the connecting plate. One side of the outer wall of the connecting motor and one side of the outer wall of the connecting shaft are both connected to connecting gears, and the upper ends of the two connecting gears are meshed and connected with rack rods, and the upper ends of the two rack rods are respectively connected to the two sides of the lower end of the support plate.

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

[0010] In the above technical solution, further, the upper end of the bottom box is connected to a detection frame, the upper ends of the inner walls of the detection frame are connected to visual detection equipment, and connection ports are opened at the lower parts of both sides of the detection frame, one of the connection ports is connected to the first conveyor belt at the lower part of the inner wall, and the other connection port is connected to the second conveyor belt at the lower part of the inner wall, and 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, further, 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 the interior of the detection frame, one end of the two first cylinders is connected to a moving block, both sides of the upper end of the moving block are connected to the second cylinders, the lower ends of the two second cylinders extend through the lower end of the moving block, and the lower ends of the two second cylinders are connected to connecting suction cups.

[0012] In the above technical solution, further, two fixed plates are connected to the other side of the detection frame, the two fixed plates are located above the second conveyor belt, a hydraulic cylinder is connected to the middle of one side of the two fixed plates, one end of the two hydraulic cylinders respectively extends through one side of the two fixed plates, one end of the two hydraulic cylinders is connected to a guide plate, one end of the guide plate is inclined, one end of the two guide plates is connected to a baffle, 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, further, a guide roller is embedded in one side of each of the two guide plates, and guide grooves are opened at positions of the guide plates corresponding to the multiple guide rollers, and the guide rollers are embedded in the guide grooves.

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

[0015] The device realizes the full automation of PCB board loading, double-sided inspection to unloading, avoiding the time loss of 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 the efficiency and stability of the inspection process. Compared with traditional manual inspection methods, the device can work continuously and uninterruptedly, with a fast inspection speed, significantly improving production efficiency and meeting the needs of large-scale production.

[0016] The drive motor and the connection motor work together to automatically flip the PCB board and move the pallet, reducing manual adjustment steps. The connection frame can quickly flip 180 degrees under the drive motor. The slip ring and stabilizer block design ensure a smooth and reliable flipping process, avoiding PCB board deviation or damage. At the same time, the connection frame is equipped with a slide groove and slider structure, which can flexibly adjust the position of the pallet, making the device more versatile and adaptable to meet diverse inspection tasks.

[0017] Through the close coordination of flipping and pallet displacement, the device can realize double-sided inspection of PCB boards without omission. The pallet is automatically moved away before inspection to avoid blocking the inspection area. After the inspection is completed, it is accurately reset to ensure a smooth and efficient inspection process, greatly shortening the inspection time of a single PCB board and improving the inspection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention;

[0019] Figure 2 A cross-sectional view of the entire structure of the present invention;

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

[0021] Figure 4This is a schematic diagram of the installation structure of the support plate proposed in the present invention;

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

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

[0024] Figure 7 This is a schematic diagram of the installation structure of the connecting gear proposed by the present invention;

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

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

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

[0028] In the figure: 1. bottom box; 2. opening; 3. support plate; 4. stopper; 5. rotating rod; 6. connecting frame; 7. driving motor; 8. pulley; 9. transmission belt; 10. slide; 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 rod; 21. slip ring; 22. detection frame; 23. visual inspection equipment; 24. connecting port; 25. first conveyor belt; 26. first cylinder; 27. moving block; 28. second cylinder; 29. ​​connecting suction cup; 30. second conveyor belt; 31. fixing plate; 32. hydraulic cylinder; 33. guide plate; 34. guide roller; 35. guide plate; 36. baffle. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1-10The visual inspection device for printing rubber quality shown in the figure includes a bottom box 1, an opening 2 is opened in the middle of the upper end of the bottom box 1, which is convenient for the connection frame 6 to be turned over, and support plates 3 are connected to both sides of the inner wall of the opening 2, which can fix the two sides of the connection frame 6 so that the connection frame 6 is located between the two support plates 3 and rotates. A stopper 4 is connected between the two support plates 3 on both sides to prevent the interior of the bottom box 1 from being exposed to the outside, and one side of the two stoppers 4 contacts the two sides of the inner wall of the opening 2 respectively. A rotating rod 5 is rotatably connected to the middle of one side of the two support plates 3, which can fix the two sides of the connection frame 6 to ensure the stability of the connection frame 6 when rotating. A connecting frame 6 is connected between the two rotating rods 5, and the connecting frame 6 can fix the support plate 12. A guide plate 35 is connected to the middle of the upper end of one of the support plates 3, which can guide the PCB board above the second conveyor belt 30 to the top of the support plate 12. The guide plate 3 The shape of 5 is arranged in an inclined shape. A driving motor 7 is connected to one side of the lower end of the inner wall of the bottom box 1, which can drive the pulley 8 at the output end of the driving motor 7 to rotate. The rotating rod 5 is driven to rotate through the pulley 8 and the transmission belt 9, which is convenient for driving the connecting frame 6 to rotate. The outer wall of the output end of the driving motor 7 and the middle of the outer wall of one of the rotating rods 5 are connected with pulleys 8. The two pulleys 8 are connected by transmission belts 9. One side of the two support plates 3 is connected with a slip ring 21 to ensure the stability of the connecting frame 6 when it rotates. A stabilizing groove is provided in the middle of one side of the two slip rings 21. Stabilizing blocks are evenly connected on both sides of the connecting frame 6. When the connecting frame 6 rotates, the stabilizing blocks slide inside the stabilizing groove to improve the stability of the connecting frame 6 when it flips. There are four groups of stabilizing blocks, one end of two stabilizing blocks and one end of the other two stabilizing blocks are respectively located in the two stabilizing grooves for sliding connection.

[0031] The opening 2 facilitates the smooth flipping of the connection frame 6. The pulley 8 at its output end is driven by the driving motor 7 to rotate, and the rotating rod 5 is driven to rotate through the pulley 8 and the transmission belt 9. When the rotating rod 5 rotates, the connection frame 6 can be driven to rotate. While the connection frame 6 is flipping, the stabilizing block slides inside the stabilizing groove. The slip ring 21 can greatly improve the stability of the connection frame 6 when flipping, ensuring that the connection frame 6 will not deviate or shake during the flipping process, thereby 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 slide groove 10, and the slider 11 slides inside the slide groove 10, thereby adjusting the position of the support plate 12. The middle part of the inner wall of the two slide grooves 10 is slidably connected with a slider 11, and a support plate 12 is connected between the two sliders 11. When the PCB board is above the support plate 12, its upper surface is inspected by the visual inspection equipment 23. After the inspection is completed, the connecting frame 6 drives the support plate 12 to flip, and then the support plate 12 is moved away by the slider 11, so that the other side of the PCB board can be inspected. Connecting grooves 13 are evenly opened at the upper parts of the corresponding support plates 12 on both sides of the inner wall of the connecting frame 6, which are convenient for placing the electric telescopic rods 14. There are four groups of connecting grooves 13, and the electric telescopic rods 14 are connected to the inside of the multiple connecting grooves 13, wherein one end of the two electric telescopic rods 14 is connected to one end of the other two electric telescopic rods 14, and the upper end of the splint 15 is inclined. The gear 19 on the outer wall of the motor 17 is connected to the gear 19 on the upper side of the support plate 12, and the gear 19 on the outer wall of the motor 17 is connected to the gear 19 on the upper side of the support plate 12.

[0033] The slider 11 slides in the slide groove 10, and the position of the support plate 12 can be flexibly adjusted according to the detection requirements to realize the horizontal movement of the support plate 12 in the connecting frame 6. When the PCB board is above the support plate 12, the visual inspection device 23 located at the upper end of the inner wall of the detection frame 22 can clearly and comprehensively detect its upper surface. After completing the upper surface detection of the PCB board, the connecting frame 6 drives the support plate 12 to flip 180 degrees, and then drives the connecting gear 19 to rotate through the connecting motor 17, thereby driving the rack rod 20 and the support plate 12 to move horizontally on the inner wall of the connecting frame 6. The support plate 12 is moved away by the sliding of the slider 11 in the slide groove 10, creating an unobstructed detection space for detecting the other side of the PCB board. Four groups of connecting grooves 13 are evenly opened on both sides of the inner wall of the connecting frame 6 corresponding to the upper part of the support plate 12. Their sizes match the electric telescopic rod 14, providing a stable installation position for the electric telescopic rod 14. The splint 15 has its unique The inverted L-shaped structure design and the inclined shape of the upper end can not only guide the material above the guide plate 35 to the top of the support plate 12 smoothly, but also reliably clamp and fix the PCB board from both sides after the PCB board reaches the support plate 12. The connecting motor 17 connected to the middle part of one side of the connecting plate 16 drives one of the connecting gears 19 to rotate, thereby driving the rack rod 20 meshing with it and the support plate 12 to move to one side, and the connecting gear 19 connected to the outer wall of the connecting shaft 18 connected to the middle part of the other side of the connecting plate 16 cooperates with the upper rack rod 20. When the support plate 12 moves to one side, the two rack rods 20 both 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, which can ensure the stability of the support plate 12 during movement, ensure that the support plate 12 will not shake or get stuck during the movement, so that the PCB board can accurately reach the predetermined position.

[0034] The upper end of the bottom box 1 is connected to a detection frame 22, and 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 PCB board is fed or discharged through the two connection ports 24. The lower part of the inner wall of one of the connection ports 24 is connected to a first conveyor belt 25. The first conveyor belt 25 can move the PCB board that has completed the visual inspection out. The lower part of the inner wall of the other connection port 24 is connected to a second conveyor belt 30. The second conveyor belt 30 transports the PCB board to be inspected to 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 the inside of the detection frame 22. One end of the two first cylinders 26 is connected to a moving block 27. Both sides of the upper end of the moving block 27 are connected to the second cylinders 28. The lower ends of the two second cylinders 28 extend through the lower end of the moving block 27. The lower ends of the two second cylinders 28 are connected to the connecting The suction cup 29 can be connected to the PCB board above the support plate 12 to absorb the suction cup 29, and then the PCB board after the inspection is moved to the top of the first conveyor belt 25 by the first cylinder 26 and the second cylinder 28. The other side of the inspection frame 22 is connected to two fixed plates 31, and the two fixed plates 31 are located above the second conveyor belt 30. The middle part of one side of the two fixed plates 31 is connected to a hydraulic cylinder 32. One end of the two hydraulic cylinders 32 extends through one side of the two fixed plates 31 respectively. One end of the two hydraulic cylinders 32 is connected to a guide The guide plate 33 can keep the material above the second conveyor belt 30. One end of the guide plate 33 is set in an inclined shape. One end of the two guide plates 33 is connected to a baffle 36 to prevent the PCB board from shifting above the guide plate 35. The shape of the baffle 36 is set in an inclined shape. The shape of the lower end of the baffle 36 is adapted to the shape of the guide plate 35. A guide roller 34 is embedded on one side of the two guide plates 33. Guide grooves are opened at the guide plates 33 corresponding to the 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 end of the inner wall of the detection frame 22 is equipped with a high-resolution image sensor and advanced image processing algorithm, which can quickly and accurately capture the image information of the printed glue on the surface of the PCB board and accurately detect the quality of the printed glue. The first conveyor belt 25 connected to the lower part of the inner wall of one connection port 24 is made of anti-slip and wear-resistant conveyor belt material, which can smoothly move the PCB board that has completed the visual inspection out of the device and transport it to the subsequent process. The second conveyor belt 30 connected to the lower part of the inner wall of the other connection port 24 is responsible for transporting the PCB board to be inspected to the top of the pallet 12. Its conveying speed can be adjusted according to the detection process to ensure that the PCB board can enter the detection position accurately and timely. The shape of one side of the guide plate 35 is adapted to the shape of one side of the second conveyor belt 30, ensuring 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 detection frame 22 is located on the first conveyor belt 25. The second cylinder 28 connected to the upper end of the moving block 27 is connected to the connecting suction cup 29 at the lower end thereof by the vacuum adsorption principle, which can reliably adsorb the PCB board above the support plate 12. Through the coordinated action of the first cylinder 26 and the second cylinder 28, the PCB board after inspection can be accurately moved to the top of the first conveyor belt 25. The two fixed plates 31 connected to one side of the inspection frame 22 are located above the second conveyor belt 30, providing installation support for the hydraulic cylinder 32. The hydraulic cylinder 32 connected to the middle part 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 arranged in an inclined shape, and the guide roller 34 embedded in its surface can contact the surface of the PCB board, play a guiding and auxiliary 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 at one end of the two guide plates 33 has a shape that matches the guide plate 35, which can effectively prevent the PCB board from shifting above the guide plate 35, ensuring that the PCB board can be accurately guided to the top of the support plate 12, providing reliable protection for subsequent inspection work.

[0036] Working principle: When the device is in use, the PCB board to be inspected is transported by the second conveyor belt 30, and 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 smoothly conveying 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 loading 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, it is guided by the baffle 36 and the guide plate 35, and enters the interior of the connecting frame 6. The PCB board is guided by the clamping plate 15 near the side of the guide plate 35, so that the PCB board is transported above the support plate 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 support plate 12. The upper end of the clamping plate 15 is inclined, which can help guide the PCB board to fall smoothly on the support plate 12, ensuring the accurate position of the PCB board and preparing for subsequent inspection.

[0037] The connecting frame 6 is kept in a horizontal state, and the visual inspection device 23 located at the upper end of the inner wall of the inspection frame 22 starts to work. The visual inspection device 23 collects and analyzes images of the quality of the printed glue on the upper surface of the PCB board on the pallet 12, and judges whether there are defects in the printed glue, such as glue shortage, glue overflow, uneven glue dots, etc. through preset detection algorithms and standards.

[0038] After the upper surface inspection of the PCB board is completed, the driving motor 7 is started, and its output end drives the pulley 8 to rotate, and the rotating rod 5 is rotated through the transmission belt 9, thereby driving the connecting frame 6 to drive the rotating rod 5 to rotate through the driving motor 7 to achieve 180° flipping, so that the lower surface of the PCB board faces upward. Before the connecting frame 6 flips over, the connecting motor 17 is started in advance, driving the connecting gear 19 to rotate, thereby causing the rack rod 20 to move. Driven by the rack rod 20, the support plate 12 slides to one side along the slide groove 10 on the inner wall of the connecting frame 6 and moves away. Since the PCB board is firmly clamped by the clamping plate 15, its position remains unchanged during the movement of the support plate 12, thereby preventing the support plate 12 from blocking the PCB board, facilitating the visual inspection equipment 23 to perform unobstructed printing quality inspection on the lower surface of the PCB board. During the flipping process of the connecting frame 6, the slip ring 21 cooperates with the stabilizing block, and the stabilizing block slides in the stabilizing groove to ensure the stability of the connecting frame 6 when flipping and prevent the PCB board from deflecting.

[0039] When the double-sided inspection of the PCB board is completed, the drive motor 7 is started again, driving the connection frame 6 to rotate 180 degrees in the opposite direction, so that the PCB board is flipped to the initial state and re-positioned above the support plate 12. At this time, the support plate 12 is reset under the drive of the rack rod 20 and aligned with the bottom of the PCB board to ensure that the PCB board falls smoothly on the support plate 12. Subsequently, the first cylinder 26 and the second cylinder 28 work together to drive the connection suction cup 29 to move downward to absorb the PCB board. Then, the first cylinder 26 and the second cylinder 28 retract to move the inspected PCB board onto the first conveyor belt 25, which transports the PCB board to the subsequent process.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A device for visually inspecting the quality of printed rubber, comprising a bottom box (1), characterized in that: An opening (2) is provided in the middle of the upper end of the bottom box (1), support plates (3) are connected to both sides of the inner wall of the opening (2), and a stopper (4) is connected between the two sides of the two support plates (3), one side of the two stoppers (4) contacts the two sides of the inner wall of the opening (2), a rotating rod (5) is rotatably connected to the middle of one side of the two support plates (3), and a connecting frame (6) is connected between the two rotating rods (5), and a guide plate (35) is connected to the middle of the upper end of one of the support plates (3), and the guide plate (35) is arranged in an inclined shape.

2. A visual inspection device for printing rubber 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), and a pulley (8) is connected to 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). The two pulleys (8) are connected by a transmission belt (9).

3. The device for visual inspection of rubber printing quality according to claim 1, characterized in that: The lower part of both sides of the inner wall of the connection frame (6) is provided with a sliding groove (10), the middle part of the inner wall of the two sliding grooves (10) is slidably connected with a slider (11), and a support plate (12) is connected between the two sliders (11). Connecting grooves (13) are evenly provided above the support plates (12) on both sides of the inner wall of the connection frame (6), and the number of the connecting grooves (13) is four groups. The interiors of the plurality of connecting grooves (13) are connected with electric telescopic rods (14), wherein one end of two of the electric telescopic rods (14) and one end of the other two electric telescopic rods (14) are connected with a splint (15), and the shape of the splint (15) is an inverted L-shaped structure, and the shape of the upper end of the splint (15) is inclined. Both sides of the lower end of the connection frame (6) are connected with connecting plates (16).

4. A visual inspection device for printing rubber quality according to claim 3, characterized in that: The number of the connecting plates (16) is two groups, wherein a connecting motor (17) is connected to the middle of one side of one of the connecting plates (16), and a connecting shaft (18) is connected to the middle of one side of the other connecting plate (16). One side of the outer wall of the connecting motor (17) and one side of the outer wall of the connecting shaft (18) are both connected to connecting gears (19), and the upper ends of the two connecting gears (19) are meshed and connected to rack rods (20), and the upper ends of the two rack rods (20) are respectively connected to the two sides of the lower end of the support plate (12).

5. The device for visual inspection of rubber printing quality according to claim 1, characterized in that: One side of each of the two support plates (3) is connected to a slip ring (21), and a stabilizing groove is provided in the middle of one side of each of the two slip rings (21). Stabilizing blocks are evenly connected to both sides of the connection frame (6), and the number of the stabilizing blocks is four groups, wherein one end of two of the stabilizing blocks and one end of the other two stabilizing blocks are respectively located inside two stabilizing grooves for sliding connection.

6. The device for visual inspection of rubber printing quality according to claim 1, characterized in that: The upper end of the bottom box (1) is connected to a detection frame (22), and the upper end of the inner wall of the detection frame (22) is connected to a visual detection device (23). The lower parts of both sides of the detection frame (22) are provided with connection ports (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), and the shape of one side of the guide plate (35) is adapted to the shape of one side of the second conveyor belt (30).

7. The device for visually inspecting the quality of printed rubber according to claim 6, 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 the inside of the detection frame (22), one end of the two first cylinders (26) is connected to a moving block (27), both sides of the upper end of the moving block (27) are connected to second cylinders (28), the lower ends of the two second cylinders (28) extend through the lower end of the moving block (27), and the lower ends of the two second cylinders (28) are connected to a connecting suction cup (29).

8. The device for visual inspection of rubber printing quality according to claim 6, characterized in that: Two fixed plates (31) are connected to the other side of the detection frame (22), and the two fixed 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 fixed plates (31), and one end of the two hydraulic cylinders (32) respectively extends through one side of the two fixed plates (31). One end of the two hydraulic cylinders (32) is connected to a guide plate (33), and one end of the guide plate (33) is arranged in an inclined shape. One end of the two guide plates (33) is connected to a baffle (36), and the shape of the baffle (36) is arranged in an inclined shape. The shape of the lower end of the baffle (36) is adapted to the shape of the guide plate (35).

9. The device for visually inspecting rubber printing quality according to claim 8, characterized in that: A guide roller (34) is embedded on one side of each of the two guide plates (33), and guide grooves are provided on each of the guide plates (33) corresponding to the plurality of guide rollers (34), and the guide rollers (34) are embedded in the guide grooves.

Images