Printing defect detection device capable of automatically removing paper

Abstract

The utility model discloses a printing defect detection device capable of automatically removing paper, which comprises a first detection component, a second detection component and an overturning component which are supported on the ground through a support frame and are linearly arranged, the overturning assembly is located between the first detection assembly and the second detection assembly, the first detection assembly and the second detection assembly are the same in structure, the first detection assembly comprises a conveying belt and a fixing frame, the conveying belt is arranged on the inner wall of the supporting frame, and the fixing frame is fixed to the outer wall of the top end of the supporting frame. A detection camera is installed on the inner wall of the top end of the fixing frame. According to the utility model, through the arrangement of the first detection assembly, the second detection assembly and the overturning assembly, continuous detection of paper is realized, the detection interval is short, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a printing defect detection device capable of automatically removing paper. Background Art

[0002] In the existing printing paper production work, after the printing paper production is completed, the surface quality of the printing paper needs to be tested to check whether there are ink spots, foreign matter, missing prints, etc., and then subsequent processing can be carried out.

[0003] After searching, the Chinese patent publication number CN220329337U discloses a printed product detection device with a double-sided detection function, including a base, two first slide grooves symmetrically opened on the top of the base, first threaded rods are rotatably installed inside the two first slide grooves, and two first motors are fixedly installed on one side of the base.

[0004] This patent can flip the printed matter during inspection to achieve double-sided inspection, but it requires multiple power sources such as the first electric telescopic rod, the second electric telescopic rod, and the third motor to drive in sequence during the inspection process, and the inspection speed is slow. Moreover, it can only inspect the next printed matter after the inspection of one printed matter is completed, causing the inspection speed to slow down again. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a printing defect detection device that can automatically remove paper.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A printing defect detection device capable of automatically removing paper comprises a first detection component, a second detection component and a flip component supported on the ground by a support frame, wherein the first detection component, the second detection component and the flip component are arranged in a straight line, and the flip component is located between the first detection component and the second detection component, the flip component comprises a flip frame and two connecting frames, the two connecting frames are relatively fixed to the inner wall of the support frame, the flip frame is rotatably connected to the inner wall of the support frame, and the flip frame is located between the two connecting frames, a flip motor for driving the flip frame is installed on one side of the support frame, and a surface of the connecting frame is provided with a mechanism for avoiding The avoidance groove of the turning frame, the outer wall of the turning frame is fixed with an electrostatic adsorption sheet, the outer wall of the top of the connecting frame is provided with multiple groups of conveying wheels, the conveying wheels are rotatably connected to the connecting frame, the rotating shaft of the conveying wheel is connected to a synchronous pulley, and multiple synchronous pulleys are engaged through a toothed belt. The rotating shaft of one of the multiple groups of conveying wheels is connected through a transmission shaft. The first detection component has the same structure as the second detection component. The first detection component includes a conveyor belt and a fixed frame. The conveyor belt is arranged on the inner wall of the support frame, the fixed frame is fixed to the outer wall of the top of the support frame, and a detection camera is installed on the inner wall of the top of the fixed frame.

[0008] As a further solution of the present invention: a mounting bracket is provided at one end of the conveyor belt in the direction of entry, the mounting bracket is fixed to the outer wall of the top end of the support frame, a shell is fixed to the inner wall of the mounting bracket, a brush is rotatably connected to the inner wall of the bottom end of the shell, and an air intake duct is provided on one side of the brush.

[0009] As a further solution of the present invention: an axial flow fan is installed at the top of one side of the shell, a storage cavity connected to the air intake duct is provided on the inner wall of the shell, a filter element is provided between the axial flow fan and the storage cavity, and a driving assembly for driving the brush is provided on one side of the mounting frame.

[0010] As a further solution of the present invention: one end of the transmission rod of the conveyor belt is connected to a transmission pulley, one end of the transmission shaft is connected to another transmission pulley, and the two transmission pulleys are connected through a toothed belt.

[0011] As a further solution of the present invention: a gantry is provided at one end of the conveyor belt close to the second detection component, a waste box is provided on one side of the gantry, and an electric telescopic rod is connected to one side of the gantry through a linear motion structure, and the telescopic end of the electric telescopic rod is connected to an electrostatic adsorption plate.

[0012] As a further solution of the present invention: the belt surface of the conveyor belt is provided with air holes, an air suction box is fixed to the inner wall of the support frame, the top opening of the air suction box faces the lower surface of the belt at the top of the conveyor belt, and the side wall of the support frame is provided with a fan connected to the air suction box.

[0013] As a further solution of the present invention: the driving assembly includes a rack and a gear, the inner wall of the conveyor belt is fixed with a rack, and the gear is engaged with one side of the rack.

[0014] As a further solution of the present invention: the rotating shaft of the gear and the rotating shaft of the brush are both connected with a transmission pulley, and the two transmission pulleys are connected through a toothed belt.

[0015] Compared with the prior art, the present invention provides a printing defect detection device that can automatically remove paper, which has the following beneficial effects:

[0016] 1. The utility model realizes continuous detection of paper by providing a first detection component, a second detection component and a flipping component, with a short detection interval and improved detection efficiency.

[0017] 2. The utility model is provided with a mounting frame, a shell, an air intake duct, a brush, a filter element and an axial flow fan to clean the paper to be inspected, thereby avoiding misjudgment as unqualified products due to debris attached to the surface of the paper.

[0018] 3. The utility model is provided with a driving assembly so that the rotation of the brush is linked with the conveyor belt, which reduces the layout of the power source and improves the linkage of the device.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a printing defect detection device capable of automatically removing paper proposed by the present invention;

[0021] Figure 2 This is a schematic structural diagram of a flip assembly of a printing defect detection device capable of automatically removing paper, proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the transmission structure of the conveying wheel of a printing defect detection device capable of automatically removing paper proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the transmission structure of the drive shaft and conveyor belt of a printing defect detection device capable of automatically removing paper proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of a mounting frame for a printing defect detection device capable of automatically removing paper proposed in the present invention;

[0025] Figure 6This is a schematic diagram of the transmission structure of the brush and gear of a printing defect detection device that can automatically remove paper proposed by the utility model.

[0026] In the figure: 1. Support frame; 2. First detection component; 3. Second detection component; 4. Turning component; 5. Conveyor belt; 6. Fixed frame; 7. Gantry frame; 8. Electric telescopic rod; 9. Waste container; 10. Mounting frame; 11. Housing; 12. Intake duct; 13. Brush; 14. Filter element; 15. Axial fan; 16. Gear; 17. Drive pulley; 18. Toothed belt 1; 19. Connecting frame; 20. Conveyor wheel; 21. Turning frame; 22. Avoidance groove; 23. Drive shaft; 24. Synchronous pulley; 25. Toothed belt 2; 26. Intake box; 27. Fan; 28. Rack DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] Example 1

[0030] A printing defect detection device that can automatically remove paper, such as Figures 1 to 5As shown, it includes a first detection component 2, a second detection component 3 and a flip component 4 supported on the ground by a support frame 1, the first detection component 2, the second detection component 3 and the flip component 4 are arranged in a straight line, and the flip component 4 is located between the first detection component 2 and the second detection component 3, the flip component 4 includes a flip frame 21 and two connecting frames 19, the two connecting frames 19 are relatively fixed to the inner wall of the support frame 1, the flip frame 21 is rotatably connected to the inner wall of the support frame 1, and the flip frame 21 is located between the two connecting frames 19, a flip motor for driving the flip frame 21 is installed on one side of the support frame 1, and an avoidance groove 22 for avoiding the flip frame 21 is opened on the surface of the connecting frame 19 , an electrostatic adsorption sheet is fixed on the outer wall of the flip frame 21, and a plurality of groups of conveying wheels 20 are provided on the outer wall of the top of the connecting frame 19. The conveying wheels 20 are rotatably connected to the connecting frame 19, and the rotating shafts of the conveying wheels 20 are connected with synchronous pulleys 24. The plurality of synchronous pulleys 24 are driven and meshed by toothed belts 25. The rotating shafts of one of the plurality of conveying wheels 20 are connected by a transmission shaft 23. The first detection component 2 has the same structure as the second detection component 3. The first detection component 2 includes a conveyor belt 5 and a fixed frame 6. The conveyor belt 5 is provided on the inner wall of the support frame 1, and the fixed frame 6 is fixed to the outer wall of the top of the support frame 1. A detection camera is installed on the inner wall of the top of the fixed frame 6. A mounting bracket 10 is provided at one end of the conveyor belt 5 in the direction of entry, and the mounting bracket 10 is fixed to the outer wall of the top end of the support frame 1. A shell 11 is fixed to the inner wall of the mounting bracket 10, and a brush 13 is rotatably connected to the inner wall of the bottom end of the shell 11. An air intake duct 12 is provided on one side of the brush 13, and an axial flow fan 15 is installed on the top of one side of the shell 11. A storage chamber connected to the air intake duct 12 is provided on the inner wall of the shell 11, and a filter element 14 is provided between the axial flow fan 15 and the storage chamber. A driving component for driving the brush 13 is provided on one side of the mounting bracket 10, and one end of the transmission rod of the conveyor belt 5 is connected to a transmission pulley 17, and one end of the transmission shaft 23 is connected to another transmission pulley 17. The two transmission pulleys 17 are connected by a toothed belt 18. A gantry 7 is provided at one end of the conveyor belt 5 near the second detection component 3. A waste box 9 is provided on one side of the gantry 7. One side of the gantry 7 is connected to an electric telescopic rod 8 through a linear motion structure. The linear motion structure can be a motor screw structure or other existing linear motion structure. The telescopic end of the electric telescopic rod 8 is connected to an electrostatic adsorption plate. Air holes are provided on the belt surface of the conveyor belt 5. An air suction box 26 is fixed to the inner wall of the support frame 1. The top opening of the air suction box 26 faces the lower surface of the belt at the top of the conveyor belt 5. The side wall of the support frame 1 is provided with a fan 27 connected to the air suction box 26.

[0031] During the inspection, multiple papers to be inspected are transported to the surface of the conveyor belt 5 of the first inspection component 2 at intervals, and the conveyor belt 5 transports the papers toward the flipping component 4. Before the inspection, the papers pass through the mounting bracket 10 first, and the driving component drives the brush 13 to rotate in the opposite direction of the paper conveying direction to clean the surface of the paper to be inspected to avoid misjudgment as unqualified products due to debris attached to the paper surface. At the same time, the axial flow fan 15 generates suction to suck the cleaned debris into the storage chamber through the suction duct 12 and intercept it through the filter element 14. In the process of the paper passing through the mounting bracket 10, the fan 27 adsorbs and fixes the paper on the surface of the conveyor belt 5 through the suction box 26 to avoid the brush 13 causing the paper and the conveyor belt 5 to move relative to each other. The cleaned paper enters the bottom of the fixed bracket 6, and the inspection camera takes pictures of the paper, which is compared by external equipment to determine whether the paper printing is qualified. If qualified, the paper is directly transported from the bottom of the gantry 7 to the flipping component 4. If unqualified, the electric The telescopic rod 8 drives the electrostatic adsorption plate to move downward, picks up the paper, and then moves the paper to the top of the waste box 9 through the linear motion structure, and then the electrostatic adsorption plate is powered off, causing the paper to fall into the waste box 9; when the paper moves to the turning component 4, it first moves to the top of the connecting frame 19, and the conveyor wheel 20 supports the paper. During the transmission process of the conveyor belt 5, the transmission shaft 23 will be driven to rotate through the transmission pulley 17 and the toothed belt 1 18, and the multiple conveyor wheels 20 are driven to rotate synchronously through the synchronous pulley 24 and the toothed belt 2 25, so that the paper above the conveyor wheel 20 moves. When the paper is completely moved above the connecting frame 19, the electrostatic adsorption sheet adsorbs the paper, and the turning motor drives the turning frame 21 to turn over. The paper moves with one end of the turning frame 21. When the paper moves above the connecting frame 19 on the other side, the electrostatic adsorption sheet is powered off, causing the paper to fall above the conveyor wheel 20 and be conveyed to the conveyor belt 5 of the second detection component 3, repeating the detection process in the first detection component 2.

[0032] By arranging the first detection component 2, the second detection component 3 and the turning component 4, continuous detection of paper is achieved, the detection interval is short, and the detection efficiency is improved.

[0033] By providing a mounting frame 10, a housing 11, an air intake duct 12, a brush 13, a filter element 14 and an axial flow fan 15, the paper to be inspected is cleaned to avoid misjudgment as a substandard product due to debris attached to the surface of the paper.

[0034] Example 2

[0035] A printing defect detection device capable of automatically removing paper, this embodiment makes the following improvements based on embodiment 1, such as Figure 5 、 Figure 6As shown, the driving assembly includes a rack 28 and a gear 16. The rack 28 is fixed to the inner wall of the conveyor belt 5. The gear 16 is engaged with one side of the rack 28. The rotating shaft of the gear 16 and the rotating shaft of the brush 13 are both connected to a transmission pulley 17. The two transmission pulleys 17 are connected by a toothed belt 18.

[0036] During the rotation of the conveyor belt 5, the rack 28 drives the gear 16 to rotate, and the transmission pulley 17 and the toothed belt 18 drive the brush 13 to rotate, so that the rotation of the brush 13 is linked to the conveyor belt 5, reducing the layout of the power source.

[0037] By providing a driving assembly, the rotation of the brush 13 is linked with the conveyor belt 5, which reduces the layout of the power source and improves the linkage performance of the device.

[0038] Working principle: During the inspection, multiple papers to be inspected are transported to the surface of the conveyor belt 5 of the first inspection component 2 at intervals. The conveyor belt 5 transports the paper toward the flipping component 4. Before the paper is inspected, it passes through the mounting frame 10. The rack 28 drives the gear 16 to rotate, and the transmission pulley 17 and the toothed belt 18 cooperate to drive the brush 13 to rotate in the opposite direction of the paper conveying direction to clean the surface of the paper to be inspected, so as to avoid misjudgment as unqualified products due to debris attached to the surface of the paper. At the same time, the axial fan 15 generates suction to suck the cleaned debris into the storage chamber through the suction duct 12, and intercept it through the filter element 14. In the process of the paper passing through the mounting frame 10, the fan 27 adsorbs and fixes the paper on the surface of the conveyor belt 5 through the suction box 26 to avoid the brush 13 causing the paper and the conveyor belt 5 to move relative to each other. The cleaned paper enters the bottom of the fixed frame 6, and the inspection camera takes pictures of the paper, and compares it with the external equipment to determine whether the paper printing is qualified. If qualified, the paper is directly sent from the bottom of the gantry 7 The paper is transported to the flip assembly 4. If it is unqualified, the electric telescopic rod 8 drives the electrostatic adsorption plate to move down, sucks up the paper, and then moves the paper to the top of the waste box 9 through the linear motion structure. Then the electrostatic adsorption plate is powered off, causing the paper to fall into the waste box 9; when the paper moves to the flip assembly 4, it first moves to the top of the connecting frame 19, and the conveyor wheel 20 supports the paper. During the transmission process of the conveyor belt 5, the transmission shaft 23 is driven to rotate through the transmission pulley 17 and the toothed belt 1 18, and the multiple conveyor wheels 20 are driven to rotate synchronously through the synchronous pulley 24 and the toothed belt 2 25, so that the paper above the conveyor wheel 20 moves. When the paper is completely moved to the top of the connecting frame 19, the electrostatic adsorption sheet adsorbs the paper, and the flip motor drives the flip frame 21 to flip, and the paper moves with one end of the flip frame 21. When the paper moves to the top of the connecting frame 19 on the other side, the electrostatic adsorption sheet is powered off, causing the paper to fall above the conveyor wheel 20 and be transported to the conveyor belt 5 of the second detection assembly 3, repeating the detection process in the first detection assembly 2.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing defect detection device capable of automatically removing paper, comprising a first detection component (2), a second detection component (3) and a turning component (4) supported on the ground by a support frame (1), characterized in that: The first detection component (2), the second detection component (3) and the flip component (4) are arranged in a straight line, and the flip component (4) is located between the first detection component (2) and the second detection component (3). The flip component (4) includes a flip frame (21) and two connecting frames (19). The two connecting frames (19) are relatively fixed to the inner wall of the support frame (1). The flip frame (21) is rotatably connected to the inner wall of the support frame (1), and the flip frame (21) is located between the two connecting frames (19). A flip motor for driving the flip frame (21) is installed on one side of the support frame (1). A avoidance groove (22) for avoiding the flip frame (21) is opened on the surface of the connecting frame (19). An electrostatic adsorption sheet is fixed on the outer wall of the flip frame (21). The top outer wall of the connecting frame (19) is provided with a plurality of groups of conveying wheels (20), the conveying wheels (20) are rotatably connected to the connecting frame (19), the rotating shafts of the conveying wheels (20) are connected with synchronous pulleys (24), the plurality of synchronous pulleys (24) are driven and engaged by toothed belts (25), the rotating shafts of one of the plurality of groups of conveying wheels (20) are connected by a transmission shaft (23), the first detection component (2) and the second detection component (3) have the same structure, the first detection component (2) comprises a conveying belt (5) and a fixing frame (6), the conveying belt (5) is provided on the inner wall of the support frame (1), the fixing frame (6) is fixed to the top outer wall of the support frame (1), and a detection camera is installed on the top inner wall of the fixing frame (6).

2. A printing defect detection device capable of automatically removing paper according to claim 1, characterized in that: A mounting frame (10) is provided at one end of the conveyor belt (5) in the direction of entry, the mounting frame (10) is fixed to the outer wall of the top end of the support frame (1), a shell (11) is fixed to the inner wall of the mounting frame (10), a brush (13) is rotatably connected to the inner wall of the bottom end of the shell (11), and an air intake duct (12) is provided on one side of the brush (13).

3. A printing defect detection device capable of automatically removing paper according to claim 2, characterized in that: An axial flow fan (15) is installed at the top end of one side of the housing (11); a storage cavity connected to the air intake duct (12) is provided on the inner wall of the housing (11); a filter element (14) is provided between the axial flow fan (15) and the storage cavity; and a driving assembly for driving the brush (13) is provided on one side of the mounting frame (10).

4. The printing defect detection device capable of automatically removing paper according to claim 1, characterized in that: One end of the transmission rod of the conveyor belt (5) is connected to a transmission pulley (17), and one end of the transmission shaft (23) is connected to another transmission pulley (17). The two transmission pulleys (17) are connected through a toothed belt (18).

5. The printing defect detection device capable of automatically removing paper according to claim 1, characterized in that: A gantry (7) is provided at one end of the conveyor belt (5) close to the second detection component (3); a waste box (9) is provided on one side of the gantry (7); an electric telescopic rod (8) is connected to one side of the gantry (7) via a linear motion structure; and an electrostatic adsorption plate is connected to the telescopic end of the electric telescopic rod (8).

6. The printing defect detection device capable of automatically removing paper according to claim 1, characterized in that: The surface of the conveyor belt (5) is provided with ventilation holes, an air suction box (26) is fixed on the inner wall of the support frame (1), the top opening of the air suction box (26) faces the lower surface of the top belt of the conveyor belt (5), and the side wall of the support frame (1) is provided with a fan (27) connected to the air suction box (26).

7. The printing defect detection device capable of automatically removing paper according to claim 3, characterized in that: The driving assembly comprises a rack (28) and a gear (16); the rack (28) is fixed to the inner wall of the conveyor belt (5); and the gear (16) is transmission-engaged with one side of the rack (28).

8. The printing defect detection device capable of automatically removing paper according to claim 7, characterized in that: The rotating shaft of the gear (16) and the rotating shaft of the brush (13) are both connected with a transmission pulley (17), and the two transmission pulleys (17) are connected through a toothed belt (18).

Images