A device for detecting printing defects of corrugated color boxes

Abstract

The present invention discloses a corrugated color box printing defect detection device, which relates to the field of corrugated color box printing detection technology, and comprises a detection frame with a conveying component on the top, a U-shaped frame is provided on the top of the detection frame, a fixing piece is provided on the top of one side of the U-shaped frame, a dust suction piece is provided on the top of the fixing piece, and a first dust suction piece is provided at the bottom of the fixing piece, and a second dust suction piece is slidably plugged into both sides of the first dust suction piece, and a plurality of first suction ports and two second suction ports are respectively provided at the bottom of the first dust suction piece and the second dust suction piece; by turning on the motor, the present invention can drive the driving shaft of the motor to rotate the bidirectional screw rod, so that the two nuts drive the connecting piece and the second dust suction piece to move away from each other along the direction in which the guide rod is set, so that the first suction port and the second suction port can be separated, thereby increasing the suction area, thereby being suitable for cleaning color boxes of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated color box printing detection, and in particular to a corrugated color box printing defect detection device. Background Art

[0002] Corrugated color boxes are a widely used packaging product, usually made of colored facial paper and corrugated cardboard. They are light and strong, and are suitable for packaging a variety of products, such as express delivery, electronic products, gifts, etc. Corrugated color boxes need to be printed during processing. After printing is completed, in order to ensure its yield rate, corrugated color boxes are usually inspected using a corrugated color box printing defect detection device. The corrugated color box printing defect detection device is a device specially used to detect the printing quality of corrugated paper boxes. It aims to improve detection efficiency and accuracy and reduce errors in manual detection. When in use, a CCD camera can be used for scanning, and then compared with the internally embedded good product picture to determine whether it is qualified.

[0003] In order to ensure the accuracy of CCD camera detection of carton printing defects, existing corrugated color box printing defect detection devices usually set a dust suction structure in the detection device, that is, the dust suction structure is used to remove dust from the surface of the conveyed carton, thereby ensuring the accuracy of CCD camera detection. However, since the widths of different types of cartons are also different, the dust suction port of the existing dust suction structure is usually fixed, which makes it impossible to effectively remove all impurities on the surface of the carton, reducing the cleaning effect.

[0004] To this end, we designed a corrugated color box printing defect detection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a corrugated color box printing defect detection device. By turning on the motor, the drive shaft of the motor can drive the bidirectional screw to rotate, so that the two nuts drive the connecting part and the second dust suction part to move away from each other along the direction of the guide rod, so that the first suction port and the second suction port can be separated, thereby increasing the suction area, so that it is suitable for cleaning color boxes of different specifications, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides a corrugated color box printing defect detection device, including a detection frame with a conveying assembly on the top, a U-shaped frame is provided on the top of the detection frame, a fixing part is provided on the top of one side of the U-shaped frame, a dust suction part is provided on the top of the fixing part, and a first dust suction part is provided at the bottom of the fixing part, and a second dust suction part is slidably plugged into both sides of the first dust suction part. The bottoms of the first dust suction part and the second dust suction part are respectively provided with multiple first suction ports and two second suction ports, and the two second suction ports overlap with two of the first suction ports. An adjustment frame is provided on the rear side of the first dust suction part, and a transmission assembly is provided in the adjustment frame, and the transmission assembly is fixedly connected to the second dust suction part.

[0007] Furthermore, the transmission assembly includes a bidirectional screw rod, which is arranged in an adjusting frame and rotates in a horizontal direction. A motor is fixedly installed on one side of the adjusting frame, and the driving shaft of the motor is transmission-connected to one end of the bidirectional screw rod. Two nuts are symmetrically threaded on the bidirectional screw rod, and a connecting piece is fixedly installed on the bottom of the nut. The other end of the connecting piece slides through the adjusting frame and is fixedly connected to the second dust collector. A guide rod is fixedly installed in the adjusting frame in a horizontal direction, and the nut is slidably sleeved on the guide rod.

[0008] Furthermore, an installation cavity and a fixing port are respectively provided inside and at the bottom of the adjustment frame, the installation cavity is communicated with the fixing port, the bidirectional screw rod is rotatably arranged in the installation cavity, the guide rod is fixedly installed in the installation cavity, and the connecting piece is slidably inserted in the fixing port.

[0009] Furthermore, the dust collection piece includes a dust collection box, which is fixedly installed on one side of the top of the fixing piece. An airbag tube is fixedly inserted into the top of one side of the dust collection box. The other end of the airbag tube passes through the fixing piece and is fixedly inserted into the top of the first dust collection piece.

[0010] Furthermore, a metal tube is sleeved on the airbag tube, and the two ends of the metal tube are respectively connected to the dust collection box and the first dust collection part. An air pump is provided on one side of the top of the first dust collection part, and an air supply pipe is provided at the air supply end of the air pump. An inflation cavity is opened in the airbag tube, and the other end of the air supply pipe extends into the inflation cavity. An exhaust valve is provided on one side of the airbag tube, and the exhaust valve is communicated with the outside of the metal tube.

[0011] Furthermore, the inner ring of the airbag tube is coated with a wear-resistant coating.

[0012] Furthermore, a control box is fixedly installed on the side of the top of the first dust suction piece away from the air pump, and a slide is slidably provided in the control box, a guide rod is fixedly installed on one side of the slide, and the other end of the guide rod slides through the control box and is fixedly installed with a transmission plate, and the transmission plate is fixedly installed on the top of one of the second dust suction pieces, and a contact block is provided on one side of the slide, and an electromagnetic button is fixedly installed on one side wall of the control box, the contact block cooperates with the electromagnetic button to abut against each other, and the electromagnetic button is electrically connected to the motor, the air pump and the exhaust valve.

[0013] Furthermore, a placement opening is provided on one side of the control box, the placement opening is communicated with the interior of the control box, and the end of the guide rod away from the slide is slidably inserted into the placement opening.

[0014] Furthermore, a CCD detection camera is provided at the bottom of the U-shaped frame, and the CCD detection camera and the first dust suction part are located on the same horizontal line.

[0015] Furthermore, the conveying assembly includes a conveying trough, which is opened on the top of the detection frame. Two conveying rollers are symmetrically rotated in the conveying trough. Belts are tightened and sleeved on the conveying rollers. A motor is provided on the front side of the detection frame. The driving shaft of the motor is transmission-connected to one end of one of the conveying rollers, and the CCD detection camera is electrically connected to the motor.

[0016] Compared with the prior art, the beneficial effect of the present invention is that by turning on the motor, the driving shaft of the motor can drive the bidirectional screw to rotate, so that the two nuts drive the connecting part and the second dust collecting part to move away from each other along the direction in which the guide rod is set, so that the first suction port and the second suction port can be separated, thereby increasing the suction area, thereby being suitable for cleaning color boxes of different specifications.

[0017] Compared with the prior art, the beneficial effects of the present invention are: by opening the exhaust valve, the exhaust valve can appropriately release the air in the inflation cavity, so that the inner ring diameter of the airbag tube increases, thereby improving the passing rate of debris, thereby avoiding the problem of blockage caused by the flow of a large amount of debris after the adsorption area is increased; when there are fewer impurities circulating in the airbag tube, the air pump can be turned on to allow the air pump to inject external air into the inflation cavity through the air supply pipe, so that the airbag tube is inflated and the inner ring diameter is squeezed to decrease, thereby accelerating the flow rate of debris.

[0018] Compared with the prior art, the beneficial effect of the present invention is that when the second dust suction piece slides out of the first dust suction piece, the second dust suction piece will drive the guide rod and the slide to slide in the control box. When the first suction port and the second suction port are completely separated, the contact block and the electromagnetic button will just collide with each other, so that the electromagnetic button can automatically open the exhaust valve and release the air in the inflation chamber, thereby achieving the effect of adaptive adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the rear exterior of the first dust collection box of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the interior of the front of the first dust collection box of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the front exterior of the first dust collection box of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the interior of the adjustment frame of the present invention in a half-section view;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of the interior of the control box of the present invention in a half-section view;

[0025] Figure 7 For the present invention Figure 3 Enlarged view of point A in the middle.

[0026] In the figure: 1. Detection frame; 2. U-shaped frame; 3. CCD detection camera; 4. Fixing part; 5. First dust suction part; 6. Second dust suction part; 7. First suction port; 8. Second suction port; 9. Adjusting frame; 10. Bidirectional screw; 11. Motor; 12. Nut; 13. Connecting part; 14. Guide rod; 15. Mounting cavity; 16. Fixing port; 17. Dust collection box; 18. Airbag tube; 19. Metal tube; 20. Air pump; 21. Air supply pipe; 22. Exhaust valve; 23. Inflating cavity; 24. Wear-resistant coating; 25. Control box; 26. Slide plate; 27. Guide rod; 28. Transmission plate; 29. ​​Contact block; 30. Solenoid button; 31. Conveying trough; 32. Conveying roller; 33. Belt; 34. Motor. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "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 limiting the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] See also Figure 1-7 The present invention provides a technical solution: a corrugated color box printing defect detection device, comprising a detection frame 1 with a conveying component on the top, a U-shaped frame 2 is provided on the top of the detection frame 1, a fixing member 4 is provided on the top of one side of the U-shaped frame 2, a dust suction member is provided on the top of the fixing member 4, a first dust suction member 5 is provided at the bottom of the fixing member 4, and a second dust suction member 6 is slidably plugged on both sides of the first dust suction member 5. The bottoms of the first dust suction member 5 and the second dust suction member 6 are respectively provided with a plurality of first suction ports 7 and two second suction ports 8, and the two second suction ports 8 overlap with two of the first suction ports 7. An adjusting frame 9 is provided on the rear side of the first dust suction member 5, and a transmission component is provided in the adjusting frame 9, and the transmission component is fixedly connected to the second dust suction member 6;

[0031] The transmission assembly includes a bidirectional screw rod 10, which is arranged in an adjusting frame 9 and rotates in a horizontal direction. A motor 11 is fixedly installed on one side of the adjusting frame 9. The drive shaft of the motor 11 is transmission-connected to one end of the bidirectional screw rod 10. Two nuts 12 are symmetrically threaded on the bidirectional screw rod 10. A connecting piece 13 is fixedly installed at the bottom of the nut 12. The other end of the connecting piece 13 slides through the adjusting frame 9 and is fixedly connected to the second dust collecting piece 6. A guide rod 14 is fixedly installed in the adjusting frame 9 in a horizontal direction. The nut 12 is slidably sleeved on the guide rod 14. The dust collecting piece includes a dust collecting box 17. The dust collecting box 17 is fixedly installed on one side of the top of the fixing piece 4. An airbag tube 18 is fixedly inserted on the top of one side of the dust collecting box 17. The other end of the airbag tube 18 passes through the fixing piece 4 and is fixedly inserted on the top of the first dust collecting piece 5.

[0032] During specific implementation, by turning on the dust box 17, the dust box 17 generates negative pressure and absorbs debris on the surface of the passing color box through the airbag tube 18 and the first suction port 7, thereby achieving the effect of cleaning the surface of the color box and improving the effect of the CCD detection camera 3 on the color box detection. By turning on the motor 11, the drive shaft of the motor 11 can drive the bidirectional screw 10 to rotate, so that the two nuts 12 drive the connecting part 13 and the second dust collecting part 6 away from each other along the direction set by the guide rod 14, so that the first suction port 7 can be separated from the second suction port 8, thereby increasing the adsorption area, which is suitable for cleaning color boxes of different specifications.

[0033] It should be noted here that the dust box 17 is usually equipped with a fan inside. Turning on the fan can generate negative pressure, thereby facilitating the absorption of debris. Since the dust box 17 is a prior art and is not a problem that needs to be solved in the background technology of this specification, it will not be explained in detail.

[0034] In addition, in order to facilitate the cleaning of debris in the dust box 17, we can set the dust box 17 and the fixing member 4 to be a detachable structure, by using screws and threaded nuts for disassembly and assembly.

[0035] The conveying assembly includes a conveying trough 31, which is opened at the top of the inspection frame 1. Two conveying rollers 32 are symmetrically rotated in the conveying trough 31. The conveying rollers 32 are tightened and sleeved with belts 33. A motor 34 is provided on the front side of the inspection frame 1. The drive shaft of the motor 34 is in transmission connection with one end of one of the conveying rollers 32. A CCD inspection camera 3 is provided at the bottom of the U-shaped frame 2. The CCD inspection camera 3 is located on the same horizontal line as the first dust collector 5. The corrugated color box to be inspected is placed on the top of the belt 33, and then the motor 34 is turned on. The conveying rollers 32 can drive the belt 33 to move, making it easier to transport the corrugated color box. The corrugated color box can then be inspected with the CCD inspection camera 3. If the color box has no appearance problems, the conveying will continue. If the color box has problems, the motor 34 will be turned off. At this time, the belt 33 will stop conveying, making it easier for personnel to remove the problem color box, thereby achieving the effect of conveniently inspecting the printing of corrugated color boxes.

[0036] See Figure 1-7 The interior and bottom of the adjustment frame 9 are respectively provided with an installation cavity 15 and a fixing opening 16. The installation cavity 15 is connected to the fixing opening 16. The bidirectional screw rod 10 is rotatably arranged in the installation cavity 15, the guide rod 14 is fixedly installed in the installation cavity 15, and the connecting piece 13 is slidably inserted into the fixing opening 16. This facilitates the reasonable installation of the internal components of the adjustment frame 9, avoids the problem of movement interference, and also brings convenience to the installer.

[0037] See Figure 1-7A metal tube 19 is sleeved on the airbag tube 18, and the two ends of the metal tube 19 are respectively connected to the dust collection box 17 and the first dust collection component 5. An air pump 20 is provided on one side of the top of the first dust collection component 5, and an air delivery pipe 21 is provided at the air delivery end of the air pump 20. An inflation cavity 23 is opened in the airbag tube 18, and the other end of the air delivery pipe 21 extends into the inflation cavity 23. An exhaust valve 22 is provided on one side of the airbag tube 18, and the exhaust valve 22 is communicated with the outside of the metal tube 19.

[0038] During specific implementation, based on the above implementation, when the adsorption area increases, the amount of debris entering the airbag tube 18 will increase. In order to prevent debris from being blocked in the airbag tube 18, the exhaust valve 22 is opened at this time, so that the exhaust valve 22 releases the air in the inflation chamber 23 appropriately, which can increase the inner circle diameter of the airbag tube 18, thereby improving the passing rate of debris, thereby avoiding the problem of blockage. When there are fewer impurities circulating in the airbag tube 18, the air pump 20 is turned on at this time, so that the air pump 20 injects external air into the inflation chamber 23 through the air supply pipe 21, so that the airbag tube 18 is inflated and the inner circle diameter is squeezed to decrease, thereby accelerating the flow rate of debris.

[0039] See Figure 1-7 The inner ring of the airbag tube 18 is coated with a wear-resistant coating 24. Since the debris is sharp, the wear-resistant coating 24 can improve the wear resistance of the inner ring of the airbag tube 18, which can help to extend the service life of the airbag tube 18.

[0040] See Figure 1-7 A control box 25 is fixedly installed on the side of the top of the first dust collecting part 5 away from the air pump 20, and a slide plate 26 is slidably provided in the control box 25. A guide rod 27 is fixedly installed on one side of the slide plate 26, and the other end of the guide rod 27 slides through the control box 25 and is fixedly installed with a transmission plate 28. The transmission plate 28 is fixedly installed on the top of one of the second dust collecting parts 6, and a contact block 29 is provided on one side of the slide plate 26. An electromagnetic button 30 is fixedly installed on one side wall of the control box 25, and the contact block 29 cooperates with the electromagnetic button 30 to abut against each other. The electromagnetic button 30 is electrically connected to the motor 11, the air pump 20 and the exhaust valve 22. A placement port is opened on one side of the control box 25, and the placement port is connected to the inside of the control box 25. The end of the guide rod 27 away from the slide plate 26 is slidably inserted into the placement port.

[0041] In specific implementation, based on the above implementation, when the second dust suction part 6 slides out of the first dust suction part 5, the second dust suction part 6 will drive the guide rod 27 and the slide plate 26 to slide in the control box 25. When the first suction port 7 and the second suction port 8 are completely separated, the contact block 29 and the electromagnetic button 30 will just collide with each other, so that the electromagnetic button 30 can automatically open the exhaust valve 22 and release the air in the inflation chamber 23, thereby achieving the effect of adaptive adjustment.

[0042] Working principle: Before use, all electrical appliances involved in the corrugated color box printing defect detection device need to be connected to an external power supply, or a distribution box needs to be installed in an area on the detection frame 1 that does not interfere with other components. Then, the distribution box is connected to the electrical appliances through lines to supply power to the electrical appliances, thereby ensuring the normal operation of the electrical appliances. Since connecting an external power supply to the electrical appliances or setting up a distribution box to supply power belongs to the existing technology and is not a problem that needs to be solved in the background technology of this specification, it will not be explained in detail.

[0043] When in use, first place the corrugated color box to be inspected on the top of the belt 33, then turn on the motor 34, so that the conveying roller 32 can drive the belt 33 to move, which is convenient for conveying the corrugated color box. Then, the corrugated color box can be inspected in conjunction with the CCD inspection camera 3. If there is no appearance problem with the color box, it will continue to be transported. If there is a problem with the color box, turn off the motor 34, and the belt 33 will stop conveying, which is convenient for personnel to remove the problem color box, thereby achieving the effect of conveniently inspecting the printing of corrugated color boxes.

[0044] During the above operation, when the corrugated color box is transported to the bottom of the first dust collection part 5, the dust collection box 17 is turned on at this time, so that the dust collection box 17 generates negative pressure and absorbs the debris on the surface of the passing color box through the air bag tube 18 and the first suction port 7, thereby achieving the effect of cleaning the surface of the color box and improving the effect of the CCD detection camera 3 on the color box detection. By turning on the motor 11, the drive shaft of the motor 11 can drive the bidirectional screw 10 to rotate, so that the two nuts 12 drive the connecting part 13 and the second dust collection part 6 away from each other along the direction set by the guide rod 14, so that the first suction port 7 can be separated from the second suction port 8, and the adsorption area can be increased, so that it is suitable for cleaning color boxes of different specifications.

[0045] When the adsorption area increases, the amount of debris entering the airbag tube 18 will increase. In order to prevent debris from being blocked in the airbag tube 18, the exhaust valve 22 is opened at this time, so that the exhaust valve 22 releases the air in the inflation chamber 23 appropriately, which can increase the inner circle diameter of the airbag tube 18, thereby improving the passing rate of debris and avoiding the problem of blockage. When the impurities circulating in the airbag tube 18 are less, the air pump 20 is turned on at this time, so that the air pump 20 injects external air into the inflation chamber 23 through the air supply pipe 21, so that the airbag tube 18 is inflated and the inner circle diameter is squeezed to decrease, thereby accelerating the flow rate of debris.

[0046] When the second dust suction part 6 slides out of the first dust suction part 5, the second dust suction part 6 will drive the guide rod 27 and the slide plate 26 to slide in the control box 25. When the first suction port 7 and the second suction port 8 are completely separated, the contact block 29 and the electromagnetic button 30 will just abut against each other, so that the electromagnetic button 30 can automatically open the exhaust valve 22 and release the air in the inflation chamber 23, thereby achieving the effect of adaptive adjustment.

[0047] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above-mentioned embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A corrugated color box printing defect detection device, comprising a detection frame (1) with a conveying component arranged on the top, characterized in that: A U-shaped frame (2) is provided on the top of the detection frame (1), a fixing member (4) is provided on the top of one side of the U-shaped frame (2), a dust collecting member is provided on the top of the fixing member (4), a first dust collecting member (5) is provided on the bottom of the fixing member (4), second dust collecting members (6) are slidably connected to both sides of the first dust collecting member (5), a plurality of first suction ports (7) and two second suction ports (8) are respectively provided on the bottom of the first dust collecting member (5) and the second dust collecting member (6), the two second suction ports (8) overlap with two of the first suction ports (7), an adjustment frame (9) is provided on the rear side of the first dust collecting member (5), a transmission assembly is provided in the adjustment frame (9), and the transmission assembly is fixedly connected to the second dust collecting member (6); The dust collecting member comprises a dust collecting box (17), the dust collecting box (17) being fixedly mounted on one side of the top of the fixing member (4), an air bag tube (18) being fixedly plugged into the top of one side of the dust collecting box (17), the other end of the air bag tube (18) passing through the fixing member (4) and being fixedly plugged into the top of the first dust collecting member (5); A metal tube (19) is sleeved on the airbag tube (18), and the two ends of the metal tube (19) are respectively connected to the dust collection box (17) and the first dust collection member (5). An air pump (20) is provided on one side of the top of the first dust collection member (5), and an air delivery pipe (21) is provided at the air delivery end of the air pump (20). An inflation cavity (23) is provided in the airbag tube (18), and the other end of the air delivery pipe (21) extends into the inflation cavity (23). An exhaust valve (22) is provided on one side of the airbag tube (18), and the exhaust valve (22) is in communication with the outside of the metal tube (19).

2. The device for detecting printing defects on corrugated color boxes according to claim 1, wherein: The transmission assembly includes a bidirectional screw rod (10), which is arranged in an adjustment frame (9) for rotation in a horizontal direction. A motor (11) is fixedly installed on one side of the adjustment frame (9), and a drive shaft of the motor (11) is transmission-connected to one end of the bidirectional screw rod (10). Two nuts (12) are symmetrically threaded on the bidirectional screw rod (10), and a connecting piece (13) is fixedly installed at the bottom of the nut (12). The other end of the connecting piece (13) slides through the adjustment frame (9) and is fixedly connected to the second dust collecting piece (6). A guide rod (14) is fixedly installed in the adjustment frame (9) in a horizontal direction, and the nut (12) is slidably sleeved on the guide rod (14).

3. The device for detecting printing defects on corrugated color boxes according to claim 2, wherein: The interior and bottom of the adjustment frame (9) are respectively provided with an installation cavity (15) and a fixing opening (16), the installation cavity (15) is communicated with the fixing opening (16), the bidirectional screw rod (10) is rotatably arranged in the installation cavity (15), the guide rod (14) is fixedly installed in the installation cavity (15), and the connecting member (13) is slidably inserted in the fixing opening (16).

4. The device for detecting printing defects on corrugated color boxes according to claim 1, wherein: The inner ring of the airbag tube (18) is coated with a wear-resistant coating (24).

5. The device for detecting printing defects on corrugated color boxes according to claim 1, wherein: A control box (25) is fixedly installed on the side of the top of the first dust collecting member (5) away from the air pump (20), a slide plate (26) is slidably provided in the control box (25), a guide rod (27) is fixedly installed on one side of the slide plate (26), the other end of the guide rod (27) slides through the control box (25) and is fixedly provided with a transmission plate (28), the transmission plate (28) is fixedly installed on the top of one of the second dust collecting members (6), a contact block (29) is provided on one side of the slide plate (26), an electromagnetic button (30) is fixedly installed on a side wall of the control box (25), the contact block (29) cooperates with the electromagnetic button (30) to abut against each other, and the electromagnetic button (30) is electrically connected to the motor (11), the air pump (20) and the exhaust valve (22).

6. The device for detecting printing defects on corrugated color boxes according to claim 5, characterized in that: A placement opening is provided on one side of the control box (25), the placement opening being in communication with the interior of the control box (25), and an end of the guide rod (27) away from the slide plate (26) is slidably inserted into the placement opening.

7. The device for detecting printing defects on corrugated color boxes according to claim 1, wherein: A CCD detection camera (3) is provided at the bottom of the U-shaped frame (2), and the CCD detection camera (3) and the first dust collecting member (5) are located on the same horizontal line.

8. The device for detecting printing defects on corrugated color boxes according to claim 1, wherein: The conveying assembly comprises a conveying trough (31), the conveying trough (31) being opened at the top of the detection frame (1), two conveying rollers (32) being symmetrically rotatably arranged in the conveying trough (31), a belt (33) being tightened and sleeved on the conveying rollers (32), a motor (34) being arranged on the front side of the detection frame (1), and a driving shaft of the motor (34) being transmission-connected to one end of one of the conveying rollers (32).

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