Automatic detection device for defects of color printed matters

Abstract

The utility model relates to the technical field of printed matter detection, in particular to an automatic detection device for defects of colored printed matters. Comprising a first machine body, an assembly line is fixedly connected to the first machine body, a second machine body is fixedly connected to the side, away from the first machine body, of the assembly line, a transmission motor is fixedly connected to the assembly line, and the output end of the transmission motor is rotationally connected with a conveying belt; a detection camera is installed between the first machine body and the second machine body and electrically connected with the control panel. The telescopic air cylinder is started through the control panel to drive the discharging plate to push incomplete printed products on the conveying belt to the collecting frame, so that the device can keep a good rejection effect when rejecting different printed products, the influence of light and heavy materials of the printed products on the rejection effect is reduced, and therefore when the device is used for detecting different printed products, the rejecting efficiency is improved. And therefore, the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed product detection, in particular to an automatic detection device for color printed product defects. Background Art

[0002] After the color printing is completed, the quality of the color print needs to be checked. Currently, the image of the print is taken by a camera and then compared with the standard image of the print in the computer. If the difference exceeds the tolerance range, it is judged as a defective product.

[0003] A printing detection device mentioned in the existing Chinese public patent (authorization announcement number: CN216420249U). It includes a conveying mechanism, a feeding mechanism, a printing mechanism, a detection and rejection mechanism and a controller. The feeding mechanism is used to supply the workpiece to be processed to the conveying mechanism; the printing mechanism is adjacent to the conveying mechanism and is used to print the workpiece to be processed; the detection and rejection mechanism is adjacent to the conveying mechanism and is set downstream of the printing mechanism, and is used to detect the workpiece to be processed after printing and reject the unqualified workpiece to be processed from the conveying mechanism; the controller is respectively connected to the conveying mechanism, the feeding mechanism, the printing mechanism and the detection and rejection mechanism, and is used to control the conveying mechanism, the feeding mechanism, the printing mechanism and the detection and rejection mechanism.

[0004] In the process of inspecting printed products, the existing printing inspection device compares the standard image of the printed product with the printed product on the conveyor belt, and then selects the individuals with larger differences, and then uses an inclined plate to drop the unqualified printed products into the collecting device along the gaps between the conveyor belts, or arranges an air suction pipe above the transmission belt to absorb and store the unqualified printed products, so as to achieve the unqualified product discharge and rejection. However, when collecting through the gaps in the conveyor belt, the lighter paper printed products are easy to float in the gaps and are difficult to fall into the gaps naturally, and the air suction pipes arranged on the conveyor belt are not easy to absorb the heavier plate printed products. Both of these rejection methods have the limitation that they can only work with corresponding printed products, which is inconvenient in a working environment where different types of printed products need to be inspected. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the existing automatic detection device for color printed product defects has poor versatility when rejecting different defective printed products. The present application provides an automatic detection device for color printed product defects.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A color printed product defect automatic detection device comprises a body one, an assembly line is fixedly connected to the body one, a side of the assembly line away from the body one is fixedly connected to the body two, a transmission motor is fixedly connected to the assembly line, an output end of the transmission motor is rotatably connected to a conveyor belt, a control panel is fixedly connected to the body one, the control panel is electrically connected to the transmission motor, a detection camera is installed between the body one and the body two, the detection camera is electrically connected to the control panel, an adjustment structure is arranged between the body one and the body two, and a material discharge structure is arranged between the body one, the body two and the conveyor belt.

[0008] By adopting the above technical solution, when the device is used to inspect printed products, the conveyor belt rotates to move the printed products on it toward the bottom of the inspection camera. The inspection camera photographs the patterns on the printed products, and then uploads the photographed images to the control panel for comparison with the images stored in the control panel. When the control panel processes the collected images and finds defective printed products, it stops the movement of the conveyor belt, so that the defective products stay under the inspection camera. The control panel then starts the unloading structure to unload and remove the defective printed products on the conveyor belt, so that the device can maintain a good rejection effect when removing different types of defective printed products, so that the device can automatically remove them when dealing with different printed product inspections, thereby reducing the difficulty of manual unloading.

[0009] Furthermore, the unloading structure includes a telescopic cylinder fixedly connected to the body, the telescopic cylinder is electrically connected to the control panel, the telescopic end of the telescopic cylinder is fixedly connected to the unloading plate, a collecting assembly is arranged inside the body 2, and a guide assembly is arranged between the body 1 and the body 2.

[0010] By adopting the above technical solution, the telescopic cylinder is started through the control panel to drive the unloading plate to push the incomplete printed products on the conveyor belt to the collection frame. The device can maintain a good rejection effect when rejecting different types of incomplete printed products, so that the device can automatically reject when responding to different printed product inspections, thereby reducing the difficulty of manual unloading.

[0011] Furthermore, the collecting component includes a collecting frame fixedly connected to the body 2, a collecting box is installed at the lower part of the body 2 away from the conveyor belt, a cabinet door is hinged on the side of the collecting box away from the body 2, a material discharge trough is opened between the collecting box and the body 2, and the material discharge trough is adapted to the material discharge plate.

[0012] By adopting the above technical solution, the printed products pushed into the discharge chute will fall into the collection box along with the discharge chute, and will be uniformly cleaned and recycled by personnel.

[0013] Furthermore, the guide assembly includes a fixing bar fixedly connected between the first body and the second body, a rack sleeve is fixedly connected to the blanking plate, a guide groove is provided on the fixing bar, and the rack sleeve is slidably connected to the guide groove.

[0014] By adopting the above technical solution, the rack sleeve moves along the guide groove on the fixed bar during the movement of the blanking plate, so that the movement of the blanking plate is more stable and it is easier to push the printed products on the conveyor belt for unloading.

[0015] Furthermore, a fixed column is rotatably connected to the collection frame, a closing plate is fixedly connected to the outer wall of the fixed column, an upper end of the fixed column passes through the collection frame and is fixedly connected to a gear, and the gear is adapted to the rack sleeve.

[0016] By adopting the above technical solution, when the pushing plate approaches the collection frame, the rack sleeve first meshes with the gear and rotates, driving the fixed column to rotate and thereby driving the closing plate to rotate into the lower chute, thereby opening the barrier between the lower chute and the collection frame.

[0017] Furthermore, the adjustment structure includes a threaded rod rotatably connected between body one and body two, a drive motor is fixedly connected to a side of body one close to body two, the drive motor is electrically connected to the control panel, the output end of the drive motor is connected to the threaded rod, and the threaded rod is threadedly connected to the detection camera.

[0018] By adopting the above technical solution, the detection camera can be moved according to the different types and printing positions of printed products, so that its shooting range covering the conveyor belt can be moved and adjusted, thereby enhancing the versatility of the device in detecting different printed products.

[0019] Furthermore, a guide column is fixedly connected between the first body and the second body, and the guide column is slidably connected to the detection camera.

[0020] By adopting the above technical solution, the detection camera moves along the guide column, making it more stable when moving and reducing errors during detection.

[0021] Furthermore, an inclined plate is fixedly connected to one end of the blanking plate close to the conveyor belt, and side plates are fixedly connected to both sides of the blanking plate.

[0022] By adopting the above technical solution, through the cooperation of the inclined plate and the side plate, the blanking plate can easily scoop up the printed products from the conveyor belt when pushing the printed products, and can prevent the printed products from sliding out from both sides of the blanking plate while the blanking plate is pushing.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The present application enables the device to reject different types of defective printed products by starting the telescopic cylinder through the control panel to drive the unloading plate to push the defective printed products on the conveyor belt to the collection frame. During the movement of the unloading plate, the rack sleeve moves along the guide groove on the fixed bar, so that the movement of the unloading plate is more stable, and it is easier to push the printed products on the conveyor belt for unloading, so that the device can maintain a good rejection effect when rejecting different printed products, and reduce the influence of the light or heavy material of the printed products on the rejection effect, so that the device can automatically reject when responding to different printed product detections, thereby improving the versatility of the device.

[0025] 2. In the present application, before inspecting the printed product, the drive motor can be started through the control panel to drive the threaded rod to rotate according to the different types and printing positions of the printed product, so that the inspection camera moves along the guide column, and the shooting range covered by it on the conveyor belt can be moved and adjusted, thereby enhancing the versatility of the device in inspecting different printed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the automatic detection device for color printed product defects in the present application;

[0027] Figure 2 This is a partial cross-sectional view of the automatic detection device for color printed product defects in this application.

[0028] Figure 3 This application Figure 2 A magnified schematic diagram of point A;

[0029] Figure 4 This application Figure 2 An enlarged schematic diagram of point B.

[0030] Description of reference numerals:

[0031] 1. Machine body one; 2. Machine body two; 3. Telescopic cylinder; 4. Assembly line; 5. Transmission motor; 6. Conveyor belt; 7. Collection box; 8. Control panel; 9. Detection camera; 10. Guide column; 11. Threaded rod; 12. Drive motor; 13. Cabinet door; 14. Collection frame; 15. Closing plate; 16. Unloading plate; 17. Side plate; 18. Inclined plate; 19. Fixed strip; 20. Rack sleeve; 21. Fixed column; 22. Gear. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses an automatic detection device for color printed product defects.

[0034] Reference Figure 1A color printed product defect automatic detection device comprises a body 1, an assembly line 4 is fixedly connected to the body 1, a body 2 is fixedly connected to the side of the assembly line 4 away from the body 1, a transmission motor 5 is fixedly connected to the assembly line 4, a conveyor belt 6 is rotatably connected to the output end of the transmission motor 5, a control panel 8 is fixedly connected to the body 1, the control panel 8 is electrically connected to the transmission motor 5, a detection camera 9 is installed between the body 1 and the body 2, the detection camera 9 is electrically connected to the control panel 8, an adjustment structure is arranged between the body 1 and the body 2, and a material discharge structure is arranged between the body 1, the body 2 and the conveyor belt 6.

[0035] When the device is used to detect printed products, the printed products are first placed on the conveyor belt 6, and the transmission motor 5 is started through the control panel 8 to drive the conveyor belt 6 to rotate so that the printed products on it move to the bottom of the detection camera 9. The detection camera 9 takes a picture of the pattern on the printed product, and then uploads the photographed image to the control panel 8 to compare it with the image stored in the control panel 8. When the image is compared and the difference is large, it is a defective printed product. When the control panel 8 processes the collected images and finds defective printed products, it stops the movement of the conveyor belt 6, so that the defective products stay under the detection camera 9. The control panel 8 then starts the unloading structure to unload and remove the defective printed products on the conveyor belt 6, so that the device can maintain a good rejection effect when removing different types of defective printed products, so that the device can automatically remove when dealing with different printed product inspections, thereby reducing the difficulty of manual unloading.

[0036] Reference Figure 2 and Figure 3 , Figure 4 The unloading structure includes a telescopic cylinder 3 fixedly connected to the body, the telescopic cylinder 3 is electrically connected to the control panel 8, the telescopic end of the telescopic cylinder 3 is fixedly connected to the unloading plate 16, a collecting component is arranged inside the body 2, and a guiding component is arranged between the body 1 and the body 2.

[0037] Among them, the collecting component includes a collecting frame 14 fixedly connected to the body 2, a collecting box 7 is installed at the lower part of the body 2 away from the conveyor belt 6, a cabinet door 13 is hinged on the side of the collecting box 7 away from the body 2, and a material discharge trough is opened between the collecting box 7 and the body 2, and the material discharge trough is adapted to the material discharge plate 16.

[0038] In addition, the guide assembly includes a fixing bar 19 fixedly connected between the machine body 1 and the machine body 2, a rack sleeve 20 fixedly connected to the blanking plate 16, a guide groove is provided on the fixing bar 19, and the rack sleeve 20 is slidably connected to the guide groove. A fixing column 21 is rotatably connected to the collection frame 14, and the outer wall of the fixing column 21 is fixedly connected to the closing plate 15, and the upper end of the fixing column 21 passes through the collection frame 14 and is fixedly connected to a gear 22, and the gear 22 is meshed with the rack sleeve 20.

[0039] When the device removes defective printed products, the telescopic cylinder 3 is started through the control panel 8 to drive the unloading plate 16 to push the defective printed products on the conveyor belt 6 to the collecting frame 14. During the movement of the unloading plate 16, the rack sleeve 20 moves along the guide groove on the fixed bar 19, so that the movement of the unloading plate 16 is more stable, and it is easier to push the printed products on the conveyor belt 6 for unloading. When the pushing plate approaches the collecting frame 14, the rack sleeve 20 first meshes with the gear 22 and rotates, driving the fixed column 21 to rotate, thereby driving the closing plate 15 to rotate into the unloading trough, so that it opens the barrier between the unloading trough and the collecting frame 14, so that the unloading plate 16 is not hindered when pushing the printed products into the unloading trough.

[0040] In addition, when the device does not reject printed products, the closing plate 15 remains closed, reducing the possibility of objects falling into the feed chute. The printed products pushed into the feed chute will fall into the collection box 7 along with the feed chute, and will be uniformly cleaned and recycled by personnel. This allows the device to maintain a good rejection effect when rejecting different types of defective printed products, so that the device can automatically reject them when responding to different printed product inspections, thereby reducing the difficulty of manual material discharge.

[0041] Reference Figure 1 and Figure 2 The adjustment structure includes a threaded rod 11 rotatably connected between the machine body 1 and the machine body 2, a driving motor 12 is fixedly connected to the side of the machine body 1 close to the machine body 2, the driving motor 12 is electrically connected to the control panel 8, the output end of the driving motor 12 is connected to the threaded rod 11, and the threaded rod 11 is threadedly connected to the detection camera 9. A guide column 10 is fixedly connected between the machine body 1 and the machine body 2, and the guide column 10 is slidably connected to the detection camera 9.

[0042] Before inspecting the printed product, the drive motor 12 can be started through the control panel 8 to drive the threaded rod 11 to rotate according to the different types and printing positions of the printed product, so that the detection camera 9 moves along the guide column 10, and the shooting range covered by it on the conveyor belt 6 can be moved and adjusted, thereby enhancing the versatility of the device in inspecting different printed products, changing the detection range, and making the detection effect of the device more accurate.

[0043] Reference Figure 3 An inclined plate 18 is fixedly connected to one end of the blanking plate 16 close to the conveyor belt 6 , and side plates 17 are fixedly connected to both sides of the blanking plate 16 .

[0044] Through the cooperation of the inclined plate 18 and the side plate 17, the unloading plate 16 can easily scoop up the printed products from the conveyor belt 6 when pushing the printed products, and can prevent the printed products from sliding out from both sides of the unloading plate 16 while the unloading plate 16 is pushing, thereby improving the unloading effect of the device.

[0045] Working principle: When the device is used to inspect printed products, first place the printed products on the conveyor belt 6, start the transmission motor 5 through the control panel 8, drive the conveyor belt 6 to rotate so that the printed products on it move to the bottom of the inspection camera 9, and the inspection camera 9 takes a picture of the pattern on the printed product, and then uploads the image taken to the control panel 8, and compares it with the image stored in the control panel 8. If the image is greatly different after comparison, it is a defective printed product;

[0046] When the control panel 8 processes the collected images and finds defective printed products, it stops the movement of the conveyor belt 6, so that the defective products stay under the detection camera 9, and the control panel 8 starts the telescopic cylinder 3 to drive the unloading plate 16 to push the defective printed products on the conveyor belt 6 to the collection frame 14. During the movement of the unloading plate 16, the rack sleeve 20 moves along the guide groove on the fixed bar 19, so that the movement of the unloading plate 16 is more stable, and it is easier to push the printed products on the conveyor belt 6 for unloading;

[0047] In addition, when the push plate approaches the collection frame 14, the rack sleeve 20 first meshes with the gear 22 and rotates, driving the fixed column 21 to rotate and thereby driving the closing plate 15 to rotate into the lower trough, so that the barrier between the lower trough and the collection frame 14 is opened, so that the lower plate 16 is not hindered when pushing the printed product into the lower trough. When the device does not reject the printed product, the closing plate 15 remains closed, reducing the possibility of objects falling into the lower trough. The printed products pushed into the lower trough will fall into the collection box 7 along with the lower trough, so that they can be uniformly cleaned and recycled by personnel.

[0048] In addition, before inspecting the printed product, the drive motor 12 can be started through the control panel 8 to drive the threaded rod 11 to rotate according to the different types and printing positions of the printed product, so that the inspection camera 9 moves along the guide column 10, so that the shooting range covered by it on the conveyor belt 6 can be moved and adjusted.

Claims

1. An automatic color printed product defect detection device, comprising a body (1), characterized in that: The machine body 1 (1) is fixedly connected to an assembly line (4), a side of the assembly line (4) away from the machine body 1 (1) is fixedly connected to the machine body 2 (2), the assembly line (4) is fixedly connected to a transmission motor (5), an output end of the transmission motor (5) is rotatably connected to a conveyor belt (6), the machine body 1 (1) is fixedly connected to a control panel (8), the control panel (8) is electrically connected to the transmission motor (5), a detection camera (9) is installed between the machine body 1 (1) and the machine body 2 (2), the detection camera (9) is electrically connected to the control panel (8), an adjustment structure is provided between the machine body 1 (1) and the machine body 2 (2), and a material discharge structure is provided between the machine body 1 (1), the machine body 2 (2) and the conveyor belt (6).

2. The automatic detection device for color printed product defects according to claim 1 is characterized in that: The material discharge structure comprises a telescopic cylinder (3) fixedly connected to the machine body, the telescopic cylinder (3) being electrically connected to a control panel (8), a material discharge plate (16) being fixedly connected to the telescopic end of the telescopic cylinder (3), a collecting component being arranged inside the machine body 2 (2), and a guiding component being arranged between the machine body 1 (1) and the machine body 2 (2).

3. The automatic detection device for color printed product defects according to claim 2 is characterized in that: The collecting assembly comprises a collecting frame (14) fixedly connected to the second machine body (2); a collecting box (7) is installed at the lower part of the second machine body (2) away from the conveyor belt (6); a cabinet door (13) is hingedly connected to the side of the collecting box (7) away from the second machine body (2); a material discharge trough is provided between the collecting box (7) and the second machine body (2); the material discharge trough is adapted to the material discharge plate (16).

4. The automatic detection device for color printed product defects according to claim 2, characterized in that: The guide assembly comprises a fixing bar (19) fixedly connected between the first body (1) and the second body (2); a rack sleeve (20) is fixedly connected to the blanking plate (16); a guide groove is formed on the fixing bar (19); and the rack sleeve (20) is slidably connected to the guide groove.

5. The automatic detection device for color printed product defects according to claim 3 is characterized in that: A fixing column (21) is rotatably connected to the collecting frame (14), a closing plate (15) is fixedly connected to the outer wall of the fixing column (21), an upper end of the fixing column (21) passes through the collecting frame (14) and is fixedly connected to a gear (22), and the gear (22) is adapted to fit the rack sleeve (20).

6. The automatic detection device for color printed product defects according to claim 1, characterized in that: The adjustment structure comprises a threaded rod (11) rotatably connected between the first body (1) and the second body (2); a drive motor (12) is fixedly connected to a side of the first body (1) close to the second body (2); the drive motor (12) is electrically connected to the control panel (8); an output end of the drive motor (12) is connected to the threaded rod (11); and the threaded rod (11) is threadedly connected to the detection camera (9).

7. The automatic detection device for color printed product defects according to claim 6 is characterized in that: A guide column (10) is fixedly connected between the machine body 1 (1) and the machine body 2 (2), and the guide column (10) is slidably connected to the detection camera (9).

8. The automatic detection device for color printed product defects according to claim 5, characterized in that: An end of the blanking plate (16) close to the conveyor belt (6) is fixedly connected to an inclined plate (18), and both sides of the blanking plate (16) are fixedly connected to side plates (17).

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