Paper black spot detection device

Abstract

The utility model discloses a paper black spot detection device. The paper black spot detection device is characterized in that two side frames are connected through a connecting rod, a roller is arranged between the two side frames, guide plates are arranged on the inner sides of the side frames, two parallel supporting rods are arranged at the outer ends of the two side frames, and a U-shaped frame is vertically connected with two oil cylinders; piston rods of the oil cylinders penetrate through the U-shaped frame and are connected with the two ends of the carrier roller through bearings, the two sides of the U-shaped frame are connected with the side frames through air cylinders, the inner walls of the two sides of the U-shaped frame are in sliding fit with guide grooves of the guide plates through guide blocks, the bottom of the trapezoidal shell is connected with the two supporting rods through a connecting bin, and an industrial camera is arranged in the middle of the top of the trapezoidal shell. The device is reasonable in structure, the influence of external environment light on detection is reduced through the trapezoidal shell, the U-shaped frame is in guide fit with the guide plate of the side frame through the guide block, the U-shaped frame is connected with the side frame through the air cylinder, and the U-shaped frame is further provided with the oil cylinder to support the carrier roller, so that the positions of the carrier roller in the horizontal direction and the vertical direction are adjusted, and the flexibility is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of paper black spot detection technology, specifically a paper black spot detection device. Background Technology

[0002] After solid-color paper is produced, its surface is typically inspected for black spots using an industrial camera to ensure paper quality. Current paper black spot detection devices generally mount the industrial camera directly onto a mounting rod on the frame via a bracket. The mounting rod is positioned above the idler roller, which is usually immovable. When the distance between the industrial camera and the paper needs adjustment, only the camera's bracket can be adjusted, making operation inconvenient. Furthermore, the immovable idler roller limits flexibility, and the unobstructed view of the industrial camera requires specific lighting conditions for the inspection area. Therefore, an improved technology is urgently needed to address these issues in existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a paper black spot detection device. By setting a trapezoidal shell, the influence of external ambient light on the detection process is reduced. Furthermore, the U-shaped frame is connected to the side frame via a cylinder, and the U-shaped frame is also equipped with an oil cylinder to support the roller, thereby realizing the adjustment of the horizontal and vertical positions of the roller, greatly improving flexibility and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a paper black spot detection device, comprising a frame, a movable bracket, and a visual inspection mechanism;

[0005] The frame includes side frames, connecting rods, rollers, mounting plates, and support rods. There are two side frames connected by connecting rods, and a roller is arranged between the two side frames. A guide plate is provided on the inner side of the side frame, and the guide plate has a guide groove. Mounting plates are provided at the outer ends of the two side frames, and two parallel support rods are arranged between the two mounting plates. One end of the guide plate extends to the bottom of the support rod.

[0006] The movable bracket includes a U-shaped frame, rollers, cylinders, and hydraulic cylinders. Two hydraulic cylinders are vertically connected to the U-shaped frame. The piston rods of the hydraulic cylinders pass through the U-shaped frame and are connected to both ends of the rollers through bearings. Cylinders are connected to both sides of the U-shaped frame, and the piston rods of the cylinders are connected to the side frames respectively. Guide blocks are provided on the inner walls of both sides of the U-shaped frame, and the guide blocks slide in cooperation with the guide grooves of the guide plates.

[0007] The vision inspection mechanism includes a trapezoidal housing and an industrial camera. The bottom of the trapezoidal housing is connected to two support rods through a connecting compartment. The upper and lower surfaces of the connecting compartment are open. The industrial camera is located at the middle of the top of the trapezoidal housing, with the lens of the industrial camera facing downwards. Cooling fans are located on the top of the trapezoidal housing and on both sides of the industrial camera.

[0008] Preferably, in the paper black spot detection device provided by this utility model, the connecting compartment is connected to the support rod by a connector and bolts.

[0009] Preferably, in the paper black spot detection device provided by this utility model, the connecting compartment is provided with a handle, and the side wall of the connecting compartment is densely covered with heat dissipation holes.

[0010] Preferably, in the paper black spot detection device provided by this utility model, the height of the guide block is consistent with the width of the guide groove.

[0011] Preferably, in the paper black spot detection device provided by this utility model, a motor is provided in one of the side frames, and one end of the roller is connected to the output shaft of the motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The support rod is equipped with a trapezoidal housing with an industrial camera and a cooling fan. By setting the trapezoidal housing, the influence of external ambient light on the detection is reduced, and the detection accuracy is improved. In addition, a cooling fan is set on the top of the trapezoidal housing to ensure the heat dissipation effect at the lens when the industrial camera is working continuously.

[0014] (2) At the same time, the U-shaped frame is guided and cooperated with the guide plate of the side frame through the guide block, and the U-shaped frame is connected to the side frame through the cylinder. The U-shaped frame is also equipped with an oil cylinder to support the roller, thereby realizing the adjustment of the horizontal and vertical positions of the roller, which greatly improves the flexibility. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 For the appendix Figure 1 Enlarged structural diagram of point A in the middle.

[0017] In the diagram: 1. Side frame; 2. Connecting rod; 3. Roller; 4. Mounting plate; 5. Support rod; 6. Guide plate; 7. Guide groove; 8. U-shaped frame; 9. Idler roller; 10. Cylinder; 11. Hydraulic cylinder; 12. Guide block; 13. Trapezoidal housing; 14. Industrial camera; 15. Connecting compartment; 16. Cooling fan; 17. Connector; 18. Handle; 19. Heat dissipation hole. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Please see Figure 1-2 This utility model provides a technical solution: a paper black spot detection device, including a frame, a movable bracket, and a visual inspection mechanism;

[0021] The frame includes a side frame 1, a connecting rod 2, a roller 3, a mounting plate 4, and a support rod 5. There are two side frames 1 connected by the connecting rod 2. A roller 3 is arranged between the two side frames 1. A motor is installed inside one of the side frames 1. One end of the roller 3 is connected to the output shaft of the motor to drive the roller 3. A guide plate 6 is arranged on the inner side of the side frame 1. The guide plate 6 has a guide groove 7. A mounting plate 4 is arranged at the outer end of both side frames 1. Two parallel support rods 5 are arranged between the two mounting plates 4. One end of the guide plate 6 extends to the bottom of the support rod 5.

[0022] The movable bracket includes a U-shaped frame 8, a roller 9, a cylinder 10, and a hydraulic cylinder 11. The U-shaped frame 8 is vertically connected to two hydraulic cylinders 11. The piston rods of the hydraulic cylinders 11 pass through the U-shaped frame 8 and are connected to both ends of the roller 9 through bearings. The sides of the U-shaped frame 8 are respectively connected to cylinders 10, and the piston rods of the cylinders 10 are respectively connected to the side frame 1. The inner walls of both sides of the U-shaped frame 8 are provided with guide blocks 12. The guide blocks 12 are slidably engaged with the guide grooves 7 of the guide plate 6. The height of the guide blocks 12 is the same as the width of the guide grooves 7 to ensure that the guide blocks 12 will not loosen in the guide grooves 7, thereby ensuring the stability and support of the U-shaped frame 8.

[0023] The vision inspection mechanism includes a trapezoidal housing 13 and an industrial camera 14. The bottom of the trapezoidal housing 13 is connected to two support rods 5 via a connecting compartment 15. The connecting compartment 15 is connected to the support rods 5 via connectors 17 and bolts to enable the connection and disassembly of the connecting compartment 15 and the support rods 5, thereby enabling the installation of the trapezoidal housing 13. The connecting compartment 15 is provided with a handle 18 for easy lifting. The side wall of the connecting compartment 15 is densely covered with heat dissipation holes 19 to improve heat dissipation. The upper and lower surfaces of the connecting compartment 15 are open. The industrial camera 14 is located at the middle of the top of the trapezoidal housing 13, with the lens of the industrial camera 14 facing downwards. Cooling fans 16 are located on the top of the trapezoidal housing 13 and on both sides of the industrial camera 14.

[0024] Installation method and operating principle: Move the trapezoidal housing 13, which has an industrial camera 14 and a cooling fan 16 mounted on top, to the support rod 5. The connecting compartment 15 at the bottom of the trapezoidal housing 13 is fastened to the support rod 5 on both sides by connectors 17 and bolts. Then, connect the U-shaped frame 8, which has two hydraulic cylinders 11 and rollers 9, to the slide plate. After the guide blocks 12 on the inner walls of both sides of the U-shaped frame 8 are engaged with the guide grooves 7 of the slide plate, the guide plate 6 is installed on the inner wall of the side frame 1 by bolts and extends to the bottom of the support rod 5. Then, install the cylinders 10 on the outer walls of both sides of the U-shaped frame 8 and fasten the piston rods of the cylinders 10 to the side frame 1 by bolts and nuts. At this time, the extension and retraction of the piston rods of the cylinders 10 can drive the U-shaped frame 8 to move the guide grooves 7 of the guide plate 6 horizontally. At the same time, the extension and retraction of the piston rods of the hydraulic cylinders 11 can realize the lifting and lowering of the rollers 9. In use, the roller 3 can be used for both unwinding and rewinding depending on the actual situation. The height of the support roller 9 is controlled by the hydraulic cylinder 11, thereby controlling the distance between the paper and the industrial camera 14. This utility model has a reasonable structure. The support rod 5 is equipped with a trapezoidal housing 13 containing the industrial camera 14 and a cooling fan 16. By setting the trapezoidal housing 13, the influence of external ambient light on the detection is reduced, and the detection accuracy is improved. The cooling fan 16 is set on the top of the trapezoidal housing 13, thereby ensuring the heat dissipation effect at the lens of the industrial camera 14 when it is working continuously. At the same time, the U-shaped frame 8 is guided and cooperated with the guide plate 6 of the side frame 1 through the guide block 12. The U-shaped frame 8 is connected to the side frame 1 through the cylinder 10. The U-shaped frame 8 is also equipped with a hydraulic cylinder 11 to support the support roller 9, thereby realizing the adjustment of the horizontal and vertical positions of the support roller 9, which greatly improves the flexibility.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A paper black spot detection device, characterized in that: Includes racks, mobile brackets, and vision inspection mechanisms; The frame includes a side frame (1), a connecting rod (2), a roller (3), a mounting plate (4), and a support rod (5). There are two side frames (1) connected by the connecting rod (2). A roller (3) is provided between the two side frames (1). A guide plate (6) is provided on the inner side of the side frame (1). The guide plate (6) has a guide groove (7). A mounting plate (4) is provided at the outer end of each of the two side frames (1). Two parallel support rods (5) are provided between the two mounting plates (4). One end of the guide plate (6) extends to the bottom of the support rod (5). The movable bracket includes a U-shaped frame (8), a roller (9), a cylinder (10), and a hydraulic cylinder (11). The U-shaped frame (8) is vertically connected to two hydraulic cylinders (11). The piston rods of the hydraulic cylinders (11) pass through the U-shaped frame (8) and are connected to both ends of the roller (9) through bearings. The sides of the U-shaped frame (8) are respectively connected to cylinders (10). The piston rods of the cylinders (10) are respectively connected to the side frame (1). The inner walls of both sides of the U-shaped frame (8) are provided with guide blocks (12). The guide blocks (12) are slidably engaged with the guide grooves (7) of the guide plate (6). The visual inspection mechanism includes a trapezoidal housing (13) and an industrial camera (14). The bottom of the trapezoidal housing (13) is connected to two support rods (5) through a connecting compartment (15). The upper and lower surfaces of the connecting compartment (15) are open. The industrial camera (14) is located at the middle of the top of the trapezoidal housing (13). The lens of the industrial camera (14) faces downward. Cooling fans (16) are located on the top of the trapezoidal housing (13) and on both sides of the industrial camera (14).

2. The paper black spot detection device according to claim 1, characterized in that: The connecting compartment (15) is connected to the support rod (5) via a connector (17) and bolts.

3. The paper black spot detection device according to claim 1, characterized in that: The connecting compartment (15) is provided with a handle (18), and the side wall of the connecting compartment (15) is densely covered with heat dissipation holes (19).

4. The paper black spot detection device according to claim 1, characterized in that: The height of the guide block (12) is the same as the width of the guide groove (7).

5. The paper black spot detection device according to claim 1, characterized in that: One of the side frames (1) is equipped with a motor, and one end of the roller (3) is connected to the output shaft of the motor.

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