Visual inspection device for printed products

Abstract

The utility model discloses a printed matter visual inspection device, and relates to the technical field of printed matter detection. The device comprises a rack and further comprises a frame body arranged in the middle of the top of the rack, a detection camera is arranged in the middle of the top of the inner side of the frame body, a light source is arranged on the inner side of the frame body, and a conveying mechanism is arranged at the top of the position between the two ends in the rack. A connecting top plate is arranged outside the detection camera at the top end of the inner side of the frame body. As the adjusting assembly is arranged between the top of the inner side of the frame body and the top of the light source, the front, back, left and right inclination angles of the light source can be adjusted by adjusting the height of the corresponding side of the mounting seat through the adjusting electric cylinder during use; the problem that a detection camera cannot truly and comprehensively collect images of the surface of a printed product due to the fact that high-reflectivity special areas such as gold stamping and laser anti-counterfeiting marks on the printed product reflect light of a light source to a lens of the detection camera is avoided, and the visual detection precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of printed product detection, especially relates to a printed product visual detection device. BACKGROUND

[0002] ‌The visual detection device is the intelligent detection equipment that object is carried out automatic identification, measurement and defect detection through machine vision technology simulation and replacement human eye function, and the printed product visual detection device needs to use the light source to improve the target brightness and highlight the surface feature in the actual application process, and some printed matter has the high reflectivity special area such as gilding, laser anti-fake mark and so on, and the high reflectivity special area on the printed matter reflects the light source to the image acquisition camera to influence the accuracy of image acquisition, and then influence detection precision, there is the technical problem that cannot adjust the light source angle to avoid the high reflectivity special area on the printed matter reflecting the light to influence the image acquisition precision effect while ensuring the illumination effect.

[0003] However, the printed product visual detection device needs to use a light source to improve the target brightness and highlight the surface feature in the actual application process, and some printed matter has the high reflectivity special area such as gilding, laser anti-fake mark and so on, and the high reflectivity special area on the printed matter reflects the light source to the image acquisition camera to influence the accuracy of image acquisition, and then influence detection precision, there is the technical problem that cannot adjust the light source angle to avoid the high reflectivity special area on the printed matter reflecting the light to influence the image acquisition precision effect while ensuring the illumination effect. UTILIZY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a printed product visual detection device, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a printed product visual detection device, including the frame, still including: the middle position between the top of frame is provided with the frame, the middle position of the inboard top of frame is provided with detection camera, the inboard of frame is provided with the light source, the top between both ends in the frame is provided with the conveying mechanism, the detection camera of inboard top end of frame is provided with the connecting top plate outward, the top of light source is provided with the mounting seat, the bottom of connecting top plate is provided with the first ball hinge type coupling, the top of mounting seat is provided with the second ball hinge type coupling, the bottom of first ball hinge type coupling is provided with the adjusting electric cylinder, both ends in the inboard of frame are provided with the positioning assembly.

[0007] Further, the connecting top plate and the mounting seat are annular, and the bottom end of the adjusting electric cylinder is fixedly connected with the top of the second ball hinge type coupling.

[0008] Further, the first ball hinge type coupling, the adjusting electric cylinder and the second ball hinge type coupling are provided with four groups, the bottom end of the connecting top plate is arranged at equal intervals, and the top end of the mounting seat is arranged at equal intervals.

[0009] Further, the conveying mechanism comprises rotating rollers, the rotating rollers are rotationally connected at the top between the two ends inside the frame, and the rotating rollers are arranged at equal intervals at the top between the two ends inside the frame, one side of the top of the rear end of the frame is provided with a driving motor, one side of the rear end of the rotating roller is connected with the output end of the driving motor penetrating through the rear end of the frame, and the outer sides of the rotating rollers are provided with conveying belts.

[0010] Further, the positioning assembly comprises an electric push rod, the electric push rod is arranged at the middle position of the bottom of the two ends of the frame body, one end of the electric push rod inside the frame body is provided with a limiting seat, the top inside the limiting seat is rotationally connected with a guide roller, and the two sides of one end of the limiting seat are provided with stable guide plates; and the top of the two ends of the frame body is provided with limiting sleeves.

[0011] Further, the guide rollers are arranged at equal intervals at the top inside the limiting seat, one end of the stable guide plate penetrates through the inside of the limiting sleeve, and the stable guide plate can slide forward and backward in the inside of the limiting sleeve.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a adjusting assembly is arranged between the top of the frame body and the top of the light source, and the height of the mounting seat on the corresponding side can be adjusted by adjusting the electric cylinder in use, so that the front, rear, left and right inclination angles of the light source can be adjusted, so that the light reflected by the high reflectivity special area such as gold stamping and laser anti -fake mark on the printed matter to the detection camera lens can be avoided, the detection camera can not truly and comprehensively collect the image on the surface of the printed matter, and the visual detection precision is ensured.

[0014] 2. The utility model discloses a positioning assembly is arranged at the two ends of the frame body, and the printed matter in conveying can be limited and stabilized from the side by the limiting seat in use, the printed matter is prevented from being clamped by the limiting seat by the guide roller, so that the printed matter can be accurately and stably conveyed to the image collection below the detection camera, the image collection and comparison are avoided by the phenomenon that the printed matter appears the snake -shaped running, and the economic benefit of the detection device is improved by adjusting the spacing of the limiting seat by the electric push rod to adapt to different size printed matters. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 It is a three-dimensional schematic view of the utility model;

[0017] Figure 2 is a rear perspective view of the present utility model;

[0018] Figure 3 is a frame body bottom view partial structure schematic view of the present utility model;

[0019] Figure 4 is a frame body bottom view partial structure schematic view of the present utility model; Figure 2 is a frame body bottom view partial structure schematic view of the present utility model.

[0020] In the drawings, the components represented by each reference numeral are listed as follows:

[0021] 1, rack;2, limit seat;3, frame body;4, electric push rod;5, stable guide plate;6, limit sleeve;7, connecting top plate;8, guide roller;9, detection camera;10, adjusting electric cylinder;11, rotating roller;12, first ball hinge type coupling;13, mounting seat;14, driving motor;15, conveying belt;16, light source;17, second ball hinge type coupling. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

[0023] Please refer to Figures 1-4 The present utility model is a kind of printed matter visual detection device, including rack 1, still include: the middle position between the top of rack 1 is provided with frame body 3, the middle position of the inside top of frame body 3 is provided with detection camera 9, the inside of frame body 3 is provided with light source 16, the surface brightness of printed matter needing visual detection is improved by light source 16, rotating roller 11 is rotationally connected in the top between the both ends inside rack 1, and rotating roller 11 is arranged at equal intervals in the top between the both ends inside rack 1, the side of the top of rear end of rack 1 is provided with driving motor 14, the side of rear end of rotating roller 11 is connected with the output end of driving motor 14 by penetrating the rear end of rack 1, conveying belt 15 is arranged between the outside of rotating roller 11, rotating roller 11 is driven to rotate by driving motor 14 and drives conveying belt 15 to move to convey printed matter needing detection, printed matter is conveyed to the below of detection camera 9, the detected target is converted into image signal by detection camera 9, then these signals are processed and analyzed by image processing system, finally realize the detection and identification of printed matter.

[0024] As a further embodiment of the present embodiment, as Figures 1-4As shown, the detection camera 9 outside the top end of the frame body 3 is provided with a ring-shaped connecting top plate 7, the top end of the light source 16 is provided with a ring-shaped mounting seat 13, the bottom of the connecting top plate 7 is provided with a first spherical hinge type coupling 12, and the first spherical hinge type coupling 12 is arranged at equal intervals at the bottom end of the connecting top plate 7. The top of the mounting seat 13 is provided with a second spherical hinge type coupling 17, and the second spherical hinge type coupling 17 is arranged at equal intervals at the top end of the mounting seat 13. The bottom of the first spherical hinge type coupling 12 is provided with an adjusting electric cylinder 10. The first spherical hinge type coupling 12, the adjusting electric cylinder 10 and the second spherical hinge type coupling 17 are provided with four groups. The bottom end of the adjusting electric cylinder 10 and the top of the second spherical hinge type coupling 17 are fixedly connected. The height of the mounting seat 13 corresponding to one side is adjusted by the adjusting electric cylinder 10 respectively, so as to adjust the front and rear and left and right inclination angles of the light source 16. At the same time, the first spherical hinge type coupling 12 and the second spherical hinge type coupling 17 ensure that the adjusting electric cylinder 10 can rotate flexibly between the connecting top plate 7 and the mounting seat 13, so as to adjust the light irradiation direction of the light source 16 to avoid that the reflected light of the print reaches the lens of the detection camera 9.

[0025] When the reflected light of the high reflectivity special area on the print affects the image acquisition of the detection camera 9, the adjusting electric cylinder 10 which is movably connected with the ring-shaped connecting top plate 7 and the mounting seat 13 through the first spherical hinge type coupling 12 and the second spherical hinge type coupling 17 is started to adjust the front and rear and left and right inclination angles of the ring-shaped light source 16 arranged at the bottom of the mounting seat 13, so as to adjust the light irradiation angle to make the light not be reflected to the lens of the detection camera 9 by the high reflectivity special area on the print.

[0026] As a further embodiment of the present embodiment, as shown in Figure 1 and Figure 2 As shown, the two ends inside the frame body 3 are provided with positioning assemblies. The positioning assemblies comprise electric push rods 4 which are arranged at the middle positions of the bottom of the two ends of the frame body 3. One end of the electric push rod 4 inside the frame body 3 is provided with a limiting seat 2. The spacing between the limiting seats 2 is adjusted by the electric push rod 4 to adapt to different sizes of prints. A guide roller 8 is rotatably connected to the top inside of the limiting seat 2, and the guide rollers 8 are arranged at equal intervals at the top inside of the limiting seat 2. The limiting seat 2 is used to limit and stabilize the print from the side thereof during the conveying process, and the guide roller 8 rotates with the movement of the print. The two sides of one end of the limiting seat 2 are provided with stable guide plates 5, and the two sides of the two ends of the top of the rack 1 are provided with limiting sleeves 6. One end of the stable guide plate 5 penetrates the inside of the limiting sleeve 6, and the stable guide plate 5 can slide forward and backward in the inside of the limiting sleeve 6. When the limiting seat 2 is adjusted to move towards or away from each other, the stable guide plate 5 slides forward and backward in the inside of the limiting sleeve 6, so as to limit and stabilize the limiting seat 2.

[0027] When the printed matter is conveyed, the limiting seat 2 arranged at one end of the electric push rod 4 in the inner side of the frame body 3 limits and stabilizes the printed matter from the side, meanwhile, the guide roller 8 connected to the top inner side of the limiting seat 2 rotates with the movement of the printed matter, so that the limiting seat 2 does not jam the printed matter and the printed matter cannot be normally sent for inspection, the electric push rod 4 arranged at the bottom of both ends of the frame body 3 can drive the limiting seat 2 to move towards or reversely to adjust the distance between the limiting seat 2 to adapt to different sizes of printed matter, and the stable guide plate 5 arranged at the outer end of the limiting seat 2 slides in the limiting sleeve 6 arranged at the top of both ends of the rack 1 to support and stabilize the limiting seat 2.

[0028] Working principle: when the visual detection device is used, first, the electric push rod 4 is started to move towards or reversely to adjust the distance between the limiting seat 2 according to the size of the printed matter to be detected, and the stable guide plate 5 slides in the limiting sleeve 6 to support and stabilize the limiting seat 2, then the printed matter to be visually detected is placed between the limiting seat 2 on the conveying belt 15, the driving motor 14 is started to drive the rotating roller 11 to rotate and drive the conveying belt 15 to move to convey the printed matter to be detected, when the printed matter is conveyed to the lower side of the detection camera 9, the light source 16 is turned on to irradiate the target and improve the brightness, and when the high reflectivity special area on the printed matter reflects the light of the light source 16 to affect the image acquisition of the detection camera 9, the adjusting electric cylinder 10 is started to adjust the front and rear and left and right inclination angles of the light source 16 to adjust the lighting angle to avoid affecting the detection camera 9, so that the detection camera 9 effectively acquires the image and converts the detected target into an image signal, then the image processing system compares and analyzes the signals, and finally realizes the detection and recognition of the printed matter.

[0029] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of the technical solutions recorded in the above embodiments, all belong to the protection scope of the present application.

Claims

1. A printed article visual inspection apparatus comprising a frame (1), characterized in that, Also include: The frame (1) top between the middle position is provided with frame (3), the inside top of frame (3) is provided with detection camera (9) in the middle position, the inside of frame (3) is provided with light source (16), the top between the inside of frame (1) is provided with conveying mechanism, the top of the inside of frame (3) is provided with connecting top plate (7) outside detection camera (9), the top of light source (16) is provided with mounting seat (13), the bottom of connecting top plate (7) is provided with first ball hinge coupling (12), the top of mounting seat (13) is provided with second ball hinge coupling (17), the bottom of first ball hinge coupling (12) is provided with adjusting electric cylinder (10), the both ends of the inside of frame (3) are provided with positioning assembly.

2. A printed product visual inspection apparatus according to claim 1, wherein Connecting top plate (7) and mounting seat (13) are annular, the bottom end of adjusting electric cylinder (10) and the top of second ball hinge coupling (17) are fixedly connected.

3. The printed product visual inspection apparatus of claim 1, wherein The first ball hinge coupling (12), adjusting electric cylinder (10) and second ball hinge coupling (17) are provided with four groups, the bottom end of connecting top plate (7) is arranged at equal intervals, the top of mounting seat (13) is arranged at equal intervals.

4. The printed product visual inspection apparatus of claim 1, wherein The conveying mechanism includes a rotating roller (11), which is rotatably connected between the top of the inside of the frame (1) and the top of the inside of the frame (1), and the rotating roller (11) is arranged at equal intervals between the top of the inside of the frame (1) and the top of the inside of the frame (1). The top of the rear end of the frame (1) is provided with a driving motor (14), one side of the rear end of the rotating roller (11) penetrates the rear end of the frame (1) and is connected with the output end of the driving motor (14), and the outside of the rotating roller (11) is provided with a conveying belt (15).

5. The printed product visual inspection apparatus of claim 1, wherein The positioning assembly includes an electric push rod (4), which is provided at the middle position of the bottom of the both ends of the frame (3), one end of the electric push rod (4) inside the frame (3) is provided with a limiting seat (2), the top of the inside of the limiting seat (2) is rotatably connected with a guide roller (8), both sides of one end of the limiting seat (2) are provided with a stable guide plate (5), and both sides of the top of the frame (1) are provided with a limiting sleeve (6).

6. A printed article visual inspection apparatus according to claim 5, wherein, The guide roller (8) is arranged at equal intervals on the top of the inside of the limiting seat (2), one end of the stable guide plate (5) penetrates the inside of the limiting sleeve (6), and the stable guide plate (5) can slide forward and backward in the inside of the limiting sleeve (6).

Images