Corrugated color box printing defect detection device

Abstract

The invention discloses a corrugated color box printing defect detection device, and relates to the technical field of corrugated color box printing detection, the corrugated color box printing defect detection device comprises a detection rack with the top provided with a conveying assembly, the top of the detection rack is provided with a U-shaped frame, the top of one side of the U-shaped frame is provided with a fixing piece, the top of the fixing piece is provided with a dust collection piece, and the dust collection piece is provided with a dust collection opening. A first dust collection part is arranged at the bottom of the fixing part, second dust collection parts are slidably connected to the two sides of the first dust collection part in an inserted mode, and a plurality of first adsorption openings and two second adsorption openings are formed in the bottom of the first dust collection part and the bottom of the second dust collection part correspondingly; by starting the motor, the driving shaft of the motor can drive the two-way lead screw to rotate, so that the two nuts drive the connecting piece and the second dust collection piece to be away from each other in the arrangement direction of the guide rod, the first adsorption opening and the second adsorption opening can be separated, the adsorption area can be increased, and the color box cleaning device is 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 specifically relates to a corrugated color box printing defect detection device. Background Art

[0002] Corrugated color boxes are a widely used packaging product, usually composed of colored face paper and corrugated cardboard, with the characteristics of being light and strong, and are suitable for the packaging of various products, such as express delivery, electronic products, gifts, etc. When corrugated color boxes are processed, printing is required. After printing, in order to ensure the qualified rate, a corrugated color box printing defect detection device is usually used to detect the corrugated color boxes. A corrugated color box printing defect detection device is a device specifically used to detect the printing quality of corrugated cartons, aiming to improve the detection efficiency and accuracy, and reduce the errors of manual detection. When in use, a CCD camera can be used for scanning, and then compared with the qualified product pictures embedded inside to determine whether it is qualified.

[0003] In order to ensure the accuracy of the CCD camera in detecting cartons, the existing corrugated color box printing defect detection devices usually set a dust suction structure in the detection device, that is, use the dust suction structure to suck and remove dust on the surface of the conveyed cartons, thereby ensuring the accuracy of the CCD camera detection. However, since the widths of different models of cartons are different, and the dust suction ports of the existing dust suction structures are usually fixed, it is impossible to effectively suck and remove all the impurities on the surface of the cartons, reducing the cleaning effect.

[0004] Therefore, 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 starting the motor, the driving shaft of the motor can drive the bidirectional lead screw to rotate, so that the two nuts drive the connecting piece and the second dust suction piece to move away from each other along the direction set by the guide rod, the first adsorption port and the second adsorption port can be separated, and then the adsorption area can be increased, so as to be suitable for the cleaning of corrugated boxes of different specifications, so as to solve the problems raised in the above background art.

[0006] To solve the above technical problems, a corrugated color box printing defect detection device provided by the present invention includes a detection machine frame with a conveying component arranged on the top. A U-shaped frame is arranged on the top of the detection machine frame. A fixing component is arranged on the top of one side of the U-shaped frame. A dust suction component is arranged on the top of the fixing component. A first dust suction component is arranged on the bottom of the fixing component. Two second dust suction components are slidably inserted on both sides of the first dust suction component. A plurality of first adsorption ports and two second adsorption ports are respectively arranged at the bottoms of the first dust suction component and the second dust suction components. The two second adsorption ports overlap with two of the first adsorption ports. An adjusting frame is arranged at the rear side of the first dust suction component. A transmission component is arranged in the adjusting frame. The transmission component is fixedly connected with the second dust suction component.

[0007] Further, the transmission component includes a bidirectional lead screw. The bidirectional lead screw is rotatably arranged horizontally in the adjusting frame. A motor is fixedly installed on one side of the adjusting frame. The driving shaft of the motor is in transmission connection with one end of the bidirectional lead screw. Two nuts are symmetrically threadedly sleeved on the bidirectional lead screw. A connecting piece is fixedly installed at the bottom of the nut. The other end of the connecting piece slidably penetrates through the adjusting frame and is fixedly connected with the second dust suction component. A guide rod is fixedly installed horizontally in the adjusting frame. The nut is slidably sleeved on the guide rod.

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

[0009] Further, the dust suction component includes a dust suction box. The dust suction box is fixedly installed on one side of the top of the fixing component. An air bag tube is fixedly inserted into the top of one side of the dust suction box. The other end of the air bag tube penetrates through the fixing component and is fixedly inserted into the top of the first dust suction component.

[0010] Further, a metal tube is sleeved on the air bag tube. The two ends of the metal tube are respectively connected with the dust suction box and the first dust suction component. An air pump is arranged on one side of the top of the first dust suction component. An air delivery pipe is arranged at the air delivery end of the air pump. An inflation cavity is arranged in the air bag tube. The other end of the air delivery pipe extends into the inflation cavity. An exhaust valve is arranged on one side of the air bag tube. The exhaust valve is externally cooperatively communicated with the metal tube.

[0011] Further, a wear-resistant coating is applied to the inner circle of the air bag tube.

[0012] Further, on one side of the top of the first dust suction member away from the air pump, a control box is fixedly installed. A slide plate is slidably arranged in the control box. One side of the slide plate is fixedly installed with a guiding rod. The other end of the guiding rod slidably penetrates through the control box and is fixedly installed with a transmission plate. The transmission plate is fixedly installed on the top of one of the second dust suction members. One side of the slide plate is provided with a contact block. On one side wall of the control box, an electromagnetic button is fixedly installed. The contact block is in abutment with the electromagnetic button in cooperation. The electromagnetic button is electrically connected to the motor, the air pump, and the exhaust valve.

[0013] Further, an access opening is formed on one side of the control box. The access opening is communicated with the inside of the control box. The end of the guiding rod away from the slide plate is slidably inserted into the access opening.

[0014] Further, a CCD detection camera is arranged at the bottom of the U-shaped frame. The CCD detection camera is on the same horizontal line as the first dust suction member.

[0015] Further, the conveying assembly includes a conveying trough. The conveying trough is formed on the top of the detection rack. Two conveying rollers are symmetrically and rotatably arranged in the conveying trough. A belt is tensioned and sleeved on the conveying rollers. A motor is arranged on the front side of the detection rack. The driving shaft of the motor is in transmission connection with one end of one of the conveying rollers. The CCD detection camera is electrically connected to the motor.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By starting the motor, the driving shaft of the motor can drive the bidirectional lead screw to rotate, so that the two nuts drive the connecting member and the second dust suction member to move away from each other along the direction set by the guiding rod, and the first adsorption port and the second adsorption port can be separated, thereby increasing the adsorption area and thus being applicable to the cleaning of color boxes of different specifications.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By opening the exhaust valve, the exhaust valve can appropriately release the air in the inflatable cavity, so that the inner diameter of the airbag tube increases, thereby improving the passing rate of sundries and thus avoiding the problem of blockage caused by the large amount of sundries flowing through after increasing the adsorption area. When there are fewer impurities flowing in the airbag tube, the air pump can be started to inject the outside air into the inflatable cavity through the air delivery pipe by the air pump, so that the airbag tube is inflated and the inner diameter is reduced by extrusion, thereby accelerating the flow rate of the sundries.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: When the second dust suction member slides out of the first dust suction member, the second dust suction member will drive the guiding rod and the slide plate to slide in the control box at this time. When the first adsorption port and the second adsorption port are completely separated, the contact block just abuts against the electromagnetic button at this time, so that the electromagnetic button can automatically open the exhaust valve and release the air in the inflatable cavity, realizing the effect of adaptive adjustment. Description of the Drawings

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the whole exterior of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the exterior at the rear side of the first dust suction box of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the half-section view inside the front side of the first dust suction box of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the exterior at the front side of the first dust suction box of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the half-section view inside the adjusting frame of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the half-section view inside the control box of the present invention; Figure 7 For the present invention Figure 3 Enlarged view of part A in

[0020] In the figure: 1, detection frame; 2, U-shaped frame; 3, CCD detection camera; 4, fixing piece; 5, first dust suction piece; 6, second dust suction piece; 7, first adsorption port; 8, second adsorption port; 9, adjusting frame; 10, bidirectional lead screw; 11, motor; 12, nut; 13, connecting piece; 14, guide rod; 15, installation cavity; 16, fixing port; 17, dust suction box; 18, airbag tube; 19, metal tube; 20, air pump; 21, air delivery pipe; 22, exhaust valve; 23, inflation cavity; 24, wear-resistant coating; 25, control box; 26, sliding plate; 27, guiding rod; 28, transmission plate; 29, contact block; 30, electromagnetic button; 31, conveying groove; 32, conveying roller; 33, belt; 34, motor. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figures 1-7 , the present invention provides a technical solution: a corrugated color box printing defect detection device, including a detection frame 1 with a conveying component arranged on the top, a U-shaped frame 2 arranged on the top of the detection frame 1, a fixing member 4 arranged on the top of one side of the U-shaped frame 2, a dust suction member arranged on the top of the fixing member 4, a first dust suction member 5 arranged on the bottom of the fixing member 4, two second dust suction members 6 slidably inserted on both sides of the first dust suction member 5, a plurality of first suction ports 7 and two second suction ports 8 are respectively formed at the bottoms of the first dust suction member 5 and the second dust suction members 6, the two second suction ports 8 overlap with two of the first suction ports 7, an adjusting frame 9 is arranged at the rear side of the first dust suction member 5, a transmission component is arranged in the adjusting frame 9, and the transmission component is fixedly connected to the second dust suction member 6; The transmission component includes a bidirectional lead screw 10, the bidirectional lead screw 10 is rotatably arranged horizontally in the adjusting frame 9, a motor 11 is fixedly installed on one side of the adjusting frame 9, the driving shaft of the motor 11 is in transmission connection with one end of the bidirectional lead screw 10, two nuts 12 are symmetrically threadedly sleeved on the bidirectional lead screw 10, a connecting member 13 is fixedly installed at the bottom of the nut 12, the other end of the connecting member 13 slidably penetrates through the adjusting frame 9 and is fixedly connected to the second dust suction member 6, a guide rod 14 is fixedly installed horizontally in the adjusting frame 9, and the nut 12 is slidably sleeved on the guide rod 14. The dust suction member includes a dust suction box 17, the dust suction box 17 is fixedly installed on one side of the top of the fixing member 4, an airbag tube 18 is fixedly inserted at the top of one side of the dust suction box 17, and the other end of the airbag tube 18 penetrates through the fixing member 4 and is fixedly inserted at the top of the first dust suction member 5.

[0025] During specific implementation, by turning on the dust suction box 17, the dust suction box 17 generates negative pressure and sucks the sundries on the surface of the passing color box through the airbag tube 18 and the first suction ports 7, achieving the effect of cleaning the surface of the color box and improving the detection effect of the CCD detection camera 3 on the color box. By turning on the motor 11, the driving shaft of the motor 11 can drive the bidirectional lead screw 10 to rotate, so that the two nuts 12 drive the connecting member 13 and the second dust suction member 6 to move away from each other along the direction of the guide rod 14, separating the first suction ports 7 from the second suction ports 8, and further increasing the adsorption area, thereby being applicable to the cleaning of color boxes of different specifications.

[0026] It should be noted here that the dust box 17 is usually provided 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 to be solved in the background technology of this specification, it will not be explained in detail.

[0027] 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 screw nuts for disassembly and assembly.

[0028] The conveying assembly includes a conveying trough 31, which is opened at the top of the detection 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 arranged on the front side of the detection frame 1. The driving shaft of the motor 34 is connected to one end of one of the conveying rollers 32. A CCD detection camera 3 is arranged at the bottom of the U-shaped frame 2. The CCD detection camera 3 and the first dust collector 5 are located on the same horizontal line. The corrugated color box to be inspected is placed on the top of the belt 33, and then the motor 34 is turned on, 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 with the CCD detection 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, the motor 34 will be turned off. At this time, the belt 33 stops conveying, which is convenient for personnel to remove the problematic color box, so as to achieve the effect of conveniently inspecting the printing of the corrugated color box.

[0029] See also Figures 1-7 The inside and bottom of the adjustment frame 9 are respectively provided with an installation cavity 15 and a fixing port 16, the installation cavity 15 is communicated with the fixing port 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 in the fixing port 16. It is convenient to reasonably install the internal components of the adjustment frame 9, avoid the problem of motion interference, and also bring convenience to the installer.

[0030] See also Figures 1-7 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 suction box 17 and the first dust suction member 5. An air pump 20 is arranged on one side of the top of the first dust suction member 5, and an air delivery pipe 21 is arranged 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 arranged on one side of the airbag tube 18, and the exhaust valve 22 is communicated with the outside of the metal tube 19.

[0031] During specific implementation, based on the above implementation, when the adsorption area increases, the number of sundries entering the airbag tube 18 will increase. To prevent the sundries from clogging in the airbag tube 18, the exhaust valve 22 is opened at this time, so that the exhaust valve 22 appropriately releases the air in the inflation chamber 23, which can increase the inner diameter of the airbag tube 18, thereby improving the passing rate of sundries and avoiding the problem of blockage. When there are fewer impurities flowing in the airbag tube 18, the air pump 20 is opened at this time, so that the air pump 20 injects external air into the inflation chamber 23 through the air delivery pipe 21, causing the airbag tube 18 to inflate and squeezing the inner diameter to decrease, thereby accelerating the flow rate of sundries.

[0032] Refer to Figures 1-7 , a wear-resistant coating 24 is applied to the inner circle of the airbag tube 18. Since the sundries are relatively sharp, the wear-resistant coating 24 can improve the wear resistance of the inner circle of the airbag tube 18, which helps to extend the service life of the airbag tube 18.

[0033] Refer to Figures 1-7 , on one side of the top of the first dust suction member 5 away from the air pump 20, a control box 25 is fixedly installed. A sliding plate 26 is slidably arranged in the control box 25. One side of the sliding plate 26 is fixedly installed with a guiding rod 27. The other end of the guiding rod 27 slidably penetrates 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 suction members 6. A contact block 29 is arranged on one side of the sliding plate 26. An electromagnetic button 30 is fixedly installed on one side wall inside the control box 25. The contact block 29 is in contact with the electromagnetic button 30. The electromagnetic button 30 is electrically connected to the motor 11, the air pump 20, and the exhaust valve 22. A placement opening is formed on one side of the control box 25. The placement opening is communicated with the inside of the control box 25. The end of the guiding rod 27 away from the sliding plate 26 is slidably inserted into the placement opening.

[0034] During specific implementation, based on the above implementation, when the second dust suction member 6 slides out of the first dust suction member 5, the second dust suction member 6 will drive the guiding rod 27 and the sliding plate 26 to slide in the control box 25. When the first adsorption port 7 and the second adsorption port 8 are completely separated, the contact block 29 just touches the electromagnetic button 30 at this time, so that the electromagnetic button 30 can automatically open the exhaust valve 22 and release the air in the inflation chamber 23, achieving the effect of adaptive adjustment.

[0035] Working principle: Before use, it is necessary to externally connect the power supply to all the electrical appliances involved in the corrugated cardboard box printing defect detection device, or install a distribution box in an area on the detection frame 1 that does not interfere with other components, and then connect the distribution box and the electrical appliances through wires to supply power to the electrical appliances, thereby ensuring the normal operation of the electrical appliances. Since externally connecting the power supply to the electrical appliances or setting up a distribution box for power supply belongs to the prior art and is not the problem to be solved in the background technology of this specification, it will not be described in detail.

[0036] During use, first place the corrugated color box to be detected on the top of the belt 33, and then turn on the motor 34, which can drive the belt 33 to move by the conveying roller 32, facilitating the conveyance of the corrugated color box. Then, cooperate with the CCD detection camera 3 to detect the corrugated color box. If there is no appearance problem with the color box, continue the conveyance. If there is a problem with the color box, turn off the motor 34. At this time, the belt 33 stops conveying, facilitating the operator to remove the problematic color box, achieving the effect of conveniently detecting the printing of the corrugated color box.

[0037] During the above operation process, when the corrugated color box is conveyed below the first dust suction member 5, turn on the dust suction box 17 at this time, so that the dust suction box 17 generates negative pressure and sucks the surface debris of the passing color box through the airbag tube 18 and the first suction port 7, achieving the effect of cleaning the surface of the color box and improving the detection effect of the CCD detection camera 3 on the color box. By turning on the motor 11, the drive shaft of the motor 11 can drive the bidirectional lead screw 10 to rotate, causing the two nuts 12 to drive the connecting member 13 and the second dust suction member 6 to move away from each other along the direction set by the guide rod 14, separating the first suction port 7 from the second suction port 8, and thus increasing the adsorption area, so as to be applicable to the cleaning of color boxes of different specifications.

[0038] When the adsorption area increases, the number of debris entering the airbag tube 18 will increase. To avoid the debris clogging in the airbag tube 18, turn on the exhaust valve 22 at this time, so that the exhaust valve 22 appropriately releases the air in the inflation chamber 23, increasing the inner diameter of the airbag tube 18, thereby improving the passing rate of the debris and avoiding the problem of blockage. When there is less debris flowing in the airbag tube 18, turn on the air pump 20 at this time, so that the air pump 20 injects external air into the inflation chamber 23 through the air delivery pipe 21, causing the airbag tube 18 to inflate and reducing the inner diameter by extrusion, thereby accelerating the flow rate of the debris.

[0039] When the second dust suction member 6 slides out of the first dust suction member 5, the second dust suction member 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 is completely separated from the second suction port 8, the contact block 29 just abuts against the electromagnetic button 30 at this time, causing the electromagnetic button 30 to automatically open the exhaust valve 22 and release the air in the inflation chamber 23, achieving the effect of adaptive adjustment.

[0040] The above are only the preferred embodiments of the present invention and do not impose any formal limitations on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above to form equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

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 arranged on the top of the detection frame (1), a fixing piece (4) is arranged on the top of one side of the U-shaped frame (2), a dust collecting piece is arranged on the top of the fixing piece (4), a first dust collecting piece (5) is arranged on the bottom of the fixing piece (4), second dust collecting pieces (6) are slidably plugged on both sides of the first dust collecting piece (5), a plurality of first suction ports (7) and two second suction ports (8) are respectively provided on the bottoms of the first dust collecting piece (5) and the second dust collecting piece (6), two of the second suction ports (8) overlap with two of the first suction ports (7), an adjustment frame (9) is arranged on the rear side of the first dust collecting piece (5), a transmission assembly is arranged inside the adjustment frame (9), and the transmission assembly is fixedly connected to the second dust collecting piece (6).

2. A corrugated color box printing defect detection device as claimed in claim 1, characterized in that: The transmission assembly comprises a bidirectional screw rod (10), the bidirectional screw rod (10) being rotatably arranged in the horizontal direction in the adjustment frame (9), a motor (11) being fixedly mounted on one side of the adjustment frame (9), a driving shaft of the motor (11) being transmission-connected to one end of the bidirectional screw rod (10), two nuts (12) being symmetrically threadedly sleeved on the bidirectional screw rod (10), a connecting piece (13) being fixedly mounted on the bottom of the nut (12), the other end of the connecting piece (13) slidingly passing through the adjustment frame (9) and being fixedly connected to the second dust collecting piece (6), a guide rod (14) being fixedly mounted in the horizontal direction in the adjustment frame (9), the nut (12) being slidably sleeved on the guide rod (14).

3. A corrugated color box printing defect detection device as claimed in claim 2, characterized in that: 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 piece (13) is slidably inserted in the fixing opening (16).

4. A corrugated color box printing defect detection device as claimed in claim 1, characterized in that: 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).

5. A corrugated color box printing defect detection device as claimed in claim 4, characterized in that: A metal tube (19) is sleeved on the airbag tube (18), and two ends of the metal tube (19) are respectively connected to the dust suction box (17) and the first dust suction member (5). An air pump (20) is arranged on one side of the top of the first dust suction member (5), and an air delivery pipe (21) is arranged at the air delivery end of the air pump (20). An air filling cavity (23) is provided in the airbag tube (18), and the other end of the air delivery pipe (21) extends into the air filling cavity (23). An exhaust valve (22) is arranged on one side of the airbag tube (18), and the exhaust valve (22) is cooperatively connected to the outside of the metal tube (19).

6. A corrugated color box printing defect detection device as claimed in claim 4, characterized in that: The inner ring of the airbag tube (18) is coated with a wear-resistant coating (24).

7. A corrugated color box printing defect detection device as claimed in claim 5, characterized in that: A control box (25) is fixedly mounted on a side of the top of the first dust suction member (5) away from the air pump (20); a slide plate (26) is slidably mounted inside the control box (25); a guide rod (27) is fixedly mounted 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 mounted with a transmission plate (28); the transmission plate (28) is fixedly mounted on the top of one of the second dust suction members (6); a contact block (29) is arranged on one side of the slide plate (26); an electromagnetic button (30) is fixedly mounted on a side wall inside the control box (25); the contact block (29) and the electromagnetic button (30) are matched and abutted against each other; the electromagnetic button (30) is electrically connected to the motor (11), the air pump (20) and the exhaust valve (22).

8. A corrugated color box printing defect detection device as claimed in claim 7, 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.

9. A corrugated color box printing defect detection device as claimed in claim 1, characterized in that: A CCD detection camera (3) is arranged at the bottom of the U-shaped frame (2); the CCD detection camera (3) and the first dust suction member (5) are located on the same horizontal line.

10. The device for detecting printing defects of corrugated color boxes according to claim 1, characterized in that: 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 drivingly connected to one end of one of the conveying rollers (32).

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