Six-surface visual inspection device for packaging box

Abstract

The utility model discloses a packaging box six-surface visual inspection device which comprises a conveying mechanism, a first inspection section, a second inspection section and a defective product distribution section are sequentially arranged in the conveying direction of the conveying mechanism, and the second inspection section is arranged above the first inspection section; the jacking mechanism comprises a jacking power assembly and an adsorption supporting block, the jacking power assembly drives the adsorption supporting block to ascend and descend, and the six visual detectors are arranged below the first detection section and the front, rear, left, right and upper portions of the second detection section respectively; the conveying mechanism is arranged on the workbench, the defective product backflow mechanism is erected on the workbench, the defective product backflow mechanism is arranged on one side of the conveying mechanism in parallel, and the pushing mechanism is arranged on the other side of the conveying mechanism. According to the packaging box conveying mechanism, six-face detection and material distribution operation can be completed at the same time, and the overall operation efficiency is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of appearance defect detection, and particularly to a six-sided visual inspection device for packaging boxes. Background Art

[0002] At present, the demand for packaging boxes is becoming increasingly widespread, and the detection requirements for packaging boxes in various industries are also increasing. The publicly disclosed six-sided inspection devices for color boxes in the industry use six cameras or four cameras to achieve automatic identification and detection of the six sides of the color boxes.

[0003] However, currently, in the existing six-sided inspection devices for packaging boxes, after the six sides of the packaging box are inspected, the handling manipulator takes out the color box and moves it to the discharge conveyor line. There is a lack of automatic rejection and recycling of defective packaging boxes with defects on any one side or multiple sides, which is not conducive to the automatic linkage between the genuine products and the equipment in the subsequent processes, thereby performing the next processing procedure, and there is a problem of low operation efficiency. Summary of the Utility Model

[0004] Based on this, the purpose of the present application is to provide a six-sided visual inspection device for packaging boxes that can immediately reject and recycle defective products after the six sides of the packaging box are inspected.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A six-sided visual inspection device for packaging boxes, comprising:

[0007] A workbench and a machine cover, the machine cover is installed on the workbench and encloses a receiving space with the workbench;

[0008] A conveying mechanism, the conveying mechanism is erected on the workbench and is located in the receiving space. A first detection section, a second detection section, and a defective product sorting section are sequentially arranged along the conveying direction of the conveying mechanism. Among them, the second detection section is arranged above the first detection section;

[0009] A lifting mechanism, the lifting mechanism includes: a lifting power assembly and an adsorption support block. The lifting power assembly is fixedly connected to the adsorption support block and drives the adsorption support block to lift and lower. The lifting power assembly is arranged below the second detection section. When the lifting power assembly drives the adsorption support block to descend to the lowest position, the surface of the adsorption support block is flush with the surface of the conveying mechanism;

[0010] The first vision detector, the second vision detector, the third vision detector, the fourth vision detector, the fifth vision detector and the sixth vision detector, wherein the first vision detector is disposed below the first detection section; the second vision detector, the third vision detector, the fourth vision detector, the fifth vision detector and the sixth vision detector are sequentially disposed in front of, behind, to the left of, to the right of and above the second detection section, and the second vision detector, the third vision detector, the fourth vision detector and the fifth vision detector are all located on the horizontal plane corresponding to the adsorption support block when it rises to the highest position;

[0011] The defective product return mechanism and the pushing mechanism, wherein the defective product return mechanism is mounted on the workbench, the defective product return mechanism is arranged in parallel on one side of the conveying mechanism, and the pushing mechanism is arranged on the other side of the conveying mechanism.

[0012] Further, the pushing mechanism includes: a cylinder mounting seat, a cylinder and a top block, the cylinder mounting seat is arranged on the workbench and is located on the side of the conveying mechanism away from the defective product return mechanism, the cylinder is arranged above the conveying mechanism through the cylinder mounting seat, the piston rod in the cylinder can perform telescopic movement in a direction perpendicular to the conveying mechanism, and the top block is fixedly arranged at the end of the piston rod.

[0013] Further, the pushing mechanism further includes: a plurality of first guide rods, the first guide rods are symmetrically arranged with the piston rod of the cylinder as the center, and one end of the first guide rod is slidably arranged on the cylinder mounting seat, and the other end is fixedly installed with the top block.

[0014] Further, the conveying direction of the defective product return mechanism is opposite to the conveying direction of the conveying mechanism.

[0015] Further, the lifting power assembly includes: a transmission mounting seat, a lifting motor and a screw rod transmission unit, the transmission mounting seat is arranged below the second detection section, the lifting motor is arranged at the bottom of the transmission mounting seat, and the screw rod transmission unit drives and connects the lifting motor with the adsorption support block.

[0016] Further, the screw rod transmission unit includes: a first screw rod fixing seat, a first screw rod and a transmission member, the first screw rod fixing seat is arranged on the transmission mounting seat and is oppositely arranged with the lifting motor, the first screw rod is rotatably arranged on the first screw rod fixing seat, the first screw rod is perpendicular to the conveying mechanism, and its end is connected with the lifting motor; the transmission member is screwed with the first screw rod, and the adsorption support block is arranged on the transmission member.

[0017] Further, the conveying mechanism includes: a conveying mounting base, a first conveying fixing frame, a second conveying fixing frame, and a belt conveying assembly. The conveying mounting base is arranged on the workbench. The first conveying fixing frame and the second conveying fixing frame are parallelly mounted on the workbench through the conveying mounting base. The belt conveying assembly is arranged between the first conveying fixing frame and the second conveying fixing frame.

[0018] Further, the conveying mounting base includes: a first moving seat, a second moving seat, a first fixing seat, and a second fixing seat. The first moving seat and the second moving seat are movably arranged on the workbench. The first conveying fixing frame is mounted on the workbench through the first moving seat and the second moving seat. The first fixing seat and the second fixing seat are respectively arranged opposite to one side of the first moving seat and the second moving seat. The second conveying fixing frame is mounted on the workbench through the first fixing seat and the second fixing seat.

[0019] Further, it further includes: a conveying mechanism width adjusting mechanism. The conveying mechanism width adjusting mechanism includes: a first screw fixing seat, a second screw, and a first sliding block. The first screw fixing seat is arranged opposite to the other side of the first moving seat. The second screw is rotatably arranged on the first screw fixing seat and the first fixing seat. The first sliding block is screwed with the second screw. The first moving seat is arranged on the first sliding block.

[0020] Further, the conveying mounting base further includes: a third moving seat and a third fixing seat. The third moving seat is movably arranged between the first moving seat and the second moving seat. The third fixing seat is arranged opposite to one side of the third moving seat. The third moving seat and the third fixing seat are respectively fixedly installed with the first conveying fixing frame and the second conveying fixing frame.

[0021] The conveying mechanism width adjusting mechanism further includes: a second screw fixing seat, a third screw, a second sliding block, two pulleys, and a synchronous belt. The second screw fixing seat is arranged opposite to the other side of the third moving seat. The third screw is rotatably arranged on the second screw fixing seat and the third fixing seat. The second sliding block is screwed with the third screw. The third moving seat is arranged on the second sliding block. The two pulleys are respectively arranged at the same end of the second screw and the third screw. The synchronous belt drives and connects the two pulleys.

[0022] Compared with the prior art, the conveying mechanism of the six-sided visual inspection device for packaging boxes provided by the present application is provided with a first inspection section, a second inspection section, and six visual detectors. After the bottom surface of the packaging box is inspected in the first inspection section, the front, rear, left, right, and top surfaces are inspected simultaneously in the second inspection section, which can effectively improve the inspection efficiency of the six sides of the packaging box. In addition, the conveying mechanism of the six-sided visual inspection device for packaging boxes provided by the present application is also provided with a defective product sorting section, as well as a defective product return mechanism and a pushing mechanism. After the six-sided inspection of the packaging box is completed, in the defective product sorting section, the pushing mechanism will automatically push the defective products with one or more sides of the packaging box being unqualified to the defective product return mechanism for recycling, and the conveying mechanism will convey the packaging boxes that are qualified in all six sides to the recovery point of the next processing procedure. That is, the packaging boxes can complete six-sided inspection and sorting operations simultaneously in the conveying mechanism disclosed in the present application, effectively improving the overall operation efficiency.

[0023] Compared with the prior art in which a manipulator is used to grab the packaging box for sorting and recycling, the pushing mechanism of the present application uses a horizontal pushing method to push the packaging box to the defective product return mechanism, which can avoid the situation of the packaging box falling when the manipulator grabs the packaging box; and the pushing mechanism omits the grabbing step, effectively improving the sorting efficiency.

[0024] For better understanding and implementation, the present application will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an overall schematic diagram of a six-sided visual inspection device for a packaging box of the present application;

[0026] Figure 2 is a schematic diagram of a workbench, a first visual detector, a second visual detector, a third visual detector, a fourth visual detector, a fifth visual detector, a sixth visual detector, and a defective product return mechanism of a six-sided visual inspection device for a packaging box of the present application;

[0027] Figure 3 is a schematic diagram of a conveying mechanism, a lifting mechanism, a first visual detector, a second visual detector, a third visual detector, a fourth visual detector, a fifth visual detector, a sixth visual detector, a defective product return mechanism, and a pushing mechanism of a six-sided visual inspection device for a packaging box of the present application;

[0028] Figure 4 is a schematic diagram of a conveying mechanism, a defective product return mechanism, and a pushing mechanism of a six-sided visual inspection device for a packaging box of the present application;

[0029] Figure 5 is a schematic diagram of a lifting mechanism of a six-sided visual inspection device for a packaging box of the present application;

[0030] Figure 6Explosion schematic diagram of the jacking mechanism of a six-sided visual inspection device for a packaging box in this application;

[0031] Figure 7 Schematic diagram of the conveying mechanism and the conveying mechanism width adjustment mechanism of a six-sided visual inspection device for a packaging box in this application;

[0032] Figure 8 Partial explosion schematic diagram of a six-sided visual inspection device for a packaging box in this application;

[0033] Figure 9 Explosion schematic diagram of the light source assembly of a six-sided visual inspection device for a packaging box in this application. Detailed implementation manners

[0034] This application provides a six-sided visual inspection device for a packaging box. To make the purpose, technical solutions and effects of this application clearer and more definite, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, rather than all of them. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of this application. It can be understood that the accompanying drawings are only for reference and illustration, and are not used to limit this application. The connection relationships shown in the drawings are only for clear description and do not limit the connection methods.

[0035] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. It should also be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations. The terms used in the description of this application in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] It should also be noted that in the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application 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 cannot be construed as a limitation to this application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 which is an overall schematic diagram of a six-sided visual inspection device for a packaging box of this application. Figure 2 which is a schematic diagram of a workbench, a first visual detector, a second visual detector, a third visual detector, a fourth visual detector, a fifth visual detector, a sixth visual detector and a defective product return mechanism of a six-sided visual inspection device for a packaging box of this application. Figure 3 which is a schematic diagram of a conveying mechanism, a lifting mechanism, a first visual detector, a second visual detector, a third visual detector, a fourth visual detector, a fifth visual detector, a sixth visual detector, a defective product return mechanism and a pusher mechanism of a six-sided visual inspection device for a packaging box of this application.

[0038] The six-sided visual inspection device 1 for a packaging box provided by this application includes:

[0039] A workbench 11 and a machine cover 12, the machine cover 12 is installed on the workbench 11 and encloses a receiving space with the workbench 11;

[0040] A conveying mechanism 13, the conveying mechanism 13 is installed on the workbench 11 and is located in the receiving space. A first detection section 13a, a second detection section 13b and a defective product sorting section 13c are sequentially arranged along the conveying direction of the conveying mechanism 13. Among them, the second detection section 13b is arranged above the first detection section 13a;

[0041] A lifting mechanism 14, the lifting mechanism 14 includes: a lifting power assembly 141 and an adsorption support block 142. The lifting power assembly 141 is fixedly connected to the adsorption support block 142 and drives the adsorption support block 142 to lift and lower. The lifting power assembly 141 is arranged below the second detection section 13b. When the lifting power assembly 141 drives the adsorption support block 142 to descend to the lowest position, the surface of the adsorption support block 142 is flush with the surface of the conveying mechanism 13;

[0042] The first vision detector 15a, the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e and the sixth vision detector 15f, wherein the first vision detector 15a is disposed below the first detection section 13a; the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e and the sixth vision detector 15f are sequentially disposed in front of, behind, to the left of, to the right of and above the second detection section 13b, and the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d and the fifth vision detector 15e are all located on the horizontal plane corresponding to the adsorption support block 142 when it rises to the highest position;

[0043] The defective product return mechanism 16 and the pushing mechanism 17, wherein the defective product return mechanism 16 is mounted on the workbench 11, the defective product return mechanism 16 is disposed parallel to one side of the conveying mechanism 13, and the pushing mechanism 17 is disposed on the other side of the conveying mechanism 13.

[0044] The working principle of the six-sided vision detection device 1 for packaging boxes provided in this application is as follows: when the packaging box to be detected reaches the first detection section 13a, the first vision detector 15a takes a photo of the bottom surface of the packaging box for detection; after the preliminary detection is completed, the conveying mechanism 13 conveys the packaging box to the adsorption support block 142, and the lifting power assembly 141 drives the adsorption support block 142 to rise, so that the packaging box reaches the second detection section 13b, and the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e and the sixth vision detector 15f simultaneously take photos of the front, back, left, right and top surfaces of the packaging box for detection, thereby completing the detection of all six surfaces of the packaging box; after the six-sided detection of the packaging box is completed, the lifting power assembly 141 drives the adsorption support block 142 to descend to the lowest position, and the conveying mechanism 13 conveys the packaging box to the defective product sorting section 13c. At this time, the pushing mechanism 17 automatically pushes the defective products with one or more surfaces of the packaging box detected as unqualified to the defective product return mechanism 16 for recycling.

[0045] Regarding the six-sided visual inspection device for packaging boxes compared with the prior art, the conveyor mechanism 13 disclosed in the present application is provided with a first inspection section 13a, a second inspection section 13b, and six corresponding visual detectors. After the bottom surface of the packaging box is inspected in the first inspection section 13a, the front, rear, left, right, and top surfaces are simultaneously inspected in the second inspection section 13b. There is no need to set up an additional rotating platform or manipulator to rotate and adjust different inspection surfaces of the packaging box, effectively improving the inspection efficiency of the six sides of the packaging box. The present application also discloses a defective product return mechanism 16 and a pusher mechanism 17. In the defective product distribution section 13c, the pusher mechanism 17 will automatically push the defective products with any one or more sides of the packaging box being unqualified to the defective product return mechanism 16 for recycling. That is, the packaging box can simultaneously complete six-sided inspection and material distribution operations in the conveyor mechanism 13 disclosed in the present application, effectively improving the overall operation efficiency.

[0046] Please refer to Figure 4 , Figure 4 which is a schematic diagram of the conveyor mechanism, defective product return mechanism, and pusher mechanism of a six-sided visual inspection device for a packaging box according to the present application. The pusher mechanism 17 includes: a cylinder mounting seat 172, a cylinder 174, and a top block 176. The cylinder mounting seat 172 is arranged on the workbench 11 and is located on the side of the conveyor mechanism 13 away from the defective product return mechanism 16. The cylinder 174 is arranged above the conveyor mechanism 13 through the cylinder mounting seat 172. The piston rod 174a in the cylinder 174 can perform telescopic movement in a direction perpendicular to the conveyor mechanism 13. The top block 176 is fixedly arranged at the end of the piston rod 174a. And the conveying direction of the defective product return mechanism 16 is opposite to the conveying direction of the conveyor mechanism 13.

[0047] When the defective packaging box reaches the defective product distribution section 13c, a pressure difference will be generated in the cylinder 174. The piston rod 174a of the cylinder 174 will perform an extending movement in a direction perpendicular to the conveyor mechanism 13, thereby driving the top block 176 to move in a direction perpendicular to the conveyor mechanism 13, realizing the lateral pushing of the defective packaging box from the conveyor mechanism 13 into the defective product return mechanism 16. The defective product return mechanism 16 conveys the defective packaging box back to the starting point in the direction opposite to the conveyor mechanism 13, facilitating the staff to recycle it.

[0048] In one embodiment, the pusher mechanism 17 further includes: a plurality of first guide rods 178. The first guide rods 178 are symmetrically arranged with the piston rod 174a of the cylinder 174 as the center. One end of the first guide rod 178 is slidably arranged on the cylinder mounting seat 172, and the other end is fixedly installed with the top block 176. A soft rubber head 176a is arranged at the end of the top block 176 away from the piston rod 174a.

[0049] Among them, the number of the first guide rods 178 is two. The cylinder mounting seat 172 is provided with a piston rod through hole (not marked in the figure) and a first guide rod through hole (not marked in the figure) corresponding to the positions of the piston rod 174a and the first guide rods 178. The piston rod 174a passes through the piston rod through hole for telescopic movement, and the first guide rods 178 pass through the first guide rod through holes and move synchronously with the top block 176. The material of the soft rubber head 176a is silica gel.

[0050] By providing the first guide rods 178, when the piston rod 174a drives the top block 176 to move in a direction perpendicular to the conveying mechanism 13, the stability of the top block 176 during movement is ensured, and no direction deviation will occur, thereby improving the accuracy and reliability of the pushing mechanism 17. And by providing a soft rubber head (not marked in the figure) at one end of the top block 176 away from the piston rod 174a, when the top block 176 contacts the packaging box, the soft rubber head 176a can play a buffering role, reduce the damage to the packaging box caused by the impact force, and at the same time prevent hard contact between the top block 176 and the packaging box, thereby protecting the packaging box from being scratched by the top block 176.

[0051] In other embodiments, the number of the first guide rods 178 can be adjusted adaptively, and the material of the soft rubber head 176a can also be other materials such as rubber.

[0052] Please refer to Figure 5 , Figure 5 which is a schematic diagram of the lifting mechanism of a six-sided vision inspection device for a packaging box according to the present application. In this embodiment, the lifting power assembly 141 includes: a transmission mounting seat 143, a lifting motor 144, and a lead screw transmission unit 145. The transmission mounting seat 143 is disposed below the second detection section 13b, the lifting motor 144 is disposed at the bottom of the transmission mounting seat 143, and the lead screw transmission unit 145 drivesly connects the lifting motor 144 with the adsorption support block 142.

[0053] The screw drive unit 145 includes: a first screw fixing base 145a, a first screw 145b, and a transmission member 145c. The first screw fixing base 145a is arranged on the transmission mounting base 143, opposite to the lifting motor 144. The first screw 145b is rotatably arranged in the first screw fixing base 145a. The first screw 145b is perpendicular to the conveying mechanism 13, and its end is connected to the lifting motor 144 through a connecting member (not marked in the figure). The transmission member 145c is provided with a first screw hole 145f, and the transmission member 145c is screwed to the first screw 145b through the first screw hole 145f. The adsorption support block 142 is arranged on the transmission member 145c. Wherein, the connecting member can be a coupling or a gear, etc.

[0054] When the lifting motor 144 rotates, the rotational force on its output shaft is transmitted to the first screw 145b through the connecting member, causing the first screw 145b to rotate, driving the transmission member 145c screwed to the first screw 145b to move back and forth along the first screw 145b, thereby realizing driving the adsorption support block 142 to lift and lower.

[0055] Please also refer to Figure 6 , Figure 6 which is an exploded schematic view of the lifting mechanism of a six-sided vision inspection device for a packaging box in this application. In one embodiment, the screw drive unit 145 further includes: a ball bearing (not marked in the figure). The first screw fixing base 145a includes: a plurality of fixing rods 145d and a first screw fixing block 145e. The fixing rods 145d are symmetrically arranged on the transmission mounting base 143 with the first screw 145b as the center, and the fixing rods 145d are parallel to the first screw 145b. The fixing rods 145d pass through the transmission member 145c, and the transmission member 145c can move along the fixing rods 145d. The first screw fixing block 145e is provided with a first fixing rod through hole (not marked in the figure) and a first screw through hole (not marked in the figure) corresponding to the fixing rods 145d and the first screw 145b. The fixing rods 145d are fixedly installed with the first screw fixing block 145e by being clamped with the first fixing rod through hole. The first screw 145b rotatably passes through the first screw through hole and is clamped with the first screw through hole. The ball bearing is arranged in the first screw through hole. Wherein, the number of the fixing rods 145d is two.

[0056] By setting the fixed rod 145d, when the first screw rod 145b rotates to drive the transmission member 145c to move, the stability of the transmission member 145c during movement is ensured, and the direction deviation will not occur, thereby improving the accuracy and reliability of the lead screw transmission unit 145. Moreover, the fixed rod 145d can bear and disperse the load from 145c, improving the load-bearing capacity and stability of the system. In other embodiments, the number of the fixed rods 145d can be adaptively adjusted.

[0057] Please refer to Figure 7 , Figure 7 which is a schematic diagram of the conveying mechanism and the conveying mechanism width adjusting mechanism of a six-sided vision inspection device for a packaging box in this application. In this embodiment, the conveying mechanism 13 includes: a conveying mounting base 131, a first conveying fixing frame 132, a second conveying fixing frame 133, and a belt conveying assembly 134. The conveying mounting base 131 is arranged on the workbench 11. The first conveying fixing frame 132 and the second conveying fixing frame 133 are arranged on the workbench 11 in parallel through the conveying mounting base 131. The belt conveying assembly 134 is arranged between the first conveying fixing frame 132 and the second conveying fixing frame 133. The belt conveying assembly 134 is a conventional belt transportation assembly, which will not be elaborated here.

[0058] In one embodiment, the conveying mounting base 131 includes: a first moving seat 131a, a second moving seat 131b, a first fixing seat 131c, and a second fixing seat 131d. The first moving seat 131a and the second moving seat 131b are movably arranged on the workbench. The first conveying fixing frame 132 is arranged on the workbench through the first moving seat 131a and the second moving seat 131b. The first fixing seat 131c and the second fixing seat 131d are respectively arranged opposite to one side of the first moving seat 131a and the second moving seat 131b. The second conveying fixing frame 133 is arranged on the workbench 11 through the first fixing seat 131c and the second fixing seat 131d. Among them, the second moving seat 131b is a fixed block provided with a transverse groove. At a position corresponding to the transverse groove, bolt holes are arranged on the workbench 11. By passing bolts through the transverse groove and tightening them with the bolt holes, the second moving seat 131b is fixedly installed on the workbench.

[0059] A six-sided visual inspection device 1 for a packaging box disclosed in this application further includes: a conveying mechanism width adjustment mechanism 18, and the conveying mechanism width adjustment mechanism 18 includes: a first screw fixing seat 181, a second screw 182, and a first sliding block 183. The first screw fixing seat 181 is disposed opposite to the other side of the first moving seat 131a. The second screw 182 is rotatably disposed on the first screw fixing seat 181 and the first fixing seat 131c, and the second screw 182 is perpendicular to the first conveying fixing frame 132. The first sliding block 183 is provided with a second screw hole 183a, and the first sliding block 183 is screwed to the second screw 182 through the second screw hole 183a. The first moving seat 131a is disposed on the first sliding block 183.

[0060] Since packaging boxes of different sizes need to be inspected, the width of the conveying mechanism 13 needs to be adjusted adaptively according to the size of the packaging box. The staff unscrews the bolt fixing the second moving seat 131b, moves the moving seat 131b to an appropriate position according to the size of the packaging box, and rotates the second screw 182 to make the first sliding block 183 move along the second screw 182, thereby driving the first moving seat 131a to move to an appropriate position. The first conveying fixing frame 132 and the second conveying fixing frame 133 are always parallel before and after the movement, so as to adjust the distance between the first conveying fixing frame 132 and the second conveying fixing frame 133. Of course, in other embodiments, the second moving seat 131b may also be a fixed block provided with a through hole or the like.

[0061] In one embodiment, the conveying mounting seat 131 further includes: a third moving seat 131e and a third fixing seat 131f. The third moving seat 131e is movably disposed between the first moving seat 131a and the second moving seat 131b. The third fixing seat 131f is disposed opposite to one side of the third moving seat 131e. The third moving seat 131e and the third fixing seat 131f are respectively fixedly installed on the first conveying fixing frame 132 and the second conveying fixing frame 133.

[0062] The width adjustment mechanism 18 of the conveying mechanism further includes: a second screw fixing seat 184, a third screw 185, a second sliding block 186, two pulleys 187 and a synchronous belt 188. The second screw fixing seat 184 is disposed opposite to the other side of the third moving seat 131e. The third screw 185 is rotatably disposed on the second screw fixing seat 184 and the third fixing seat 131f. The second sliding block 186 is provided with a third screw hole 186a. The second sliding block 186 is screwed to the third screw 185 through the third screw hole 186a. The third moving seat 131e is disposed on the second sliding block 186. The two pulleys 187 are respectively disposed at the same end of the second screw 182 and the third screw 185. The synchronous belt 188 drives and connects the two pulleys 187.

[0063] When the third screw 185 is rotated, the pulley mounted on the third screw 185 will rotate synchronously. Through the transmission of the synchronous belt 188, the pulley mounted on one end of the second screw 182 also rotates synchronously, so as to realize the synchronous rotation of the third screw 185 and the second screw 182. That is, when the third moving seat 131e is adjusted, the first moving seat 131a can be adjusted synchronously. By providing the first moving seat 131a and the third moving seat 131e, the load when adjusting the position of the first conveying fixing frame 132 can be shared jointly to ensure its stability and reliability. And through the synchronous adjustment of the double moving seats, the accuracy of keeping the first conveying fixing frame 132 and the second conveying fixing frame 133 parallel after moving can be improved.

[0064] In this embodiment, please refer to Figure 8 , Figure 8 is a partial exploded view of a six-sided vision inspection device for a packaging box of the present application. The first vision detector 15a, the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e and the sixth vision detector 15f all include: a mounting plate 151, a screw drive assembly 153, a camera body 154, a lens assembly 155 and a light source assembly 156. The mounting plate 151 is provided with a through hole 151a. The screw drive assembly 153 is mounted on one side of the mounting plate 151. The camera body 154 is movably adjusted along the vertical direction of the mounting plate 151 by being in transmission connection with the screw drive assembly 153. The lens assembly 155 passes through the through hole 151a after being assembled with the camera body 154. The light source assembly 156 is mounted on the other side of the mounting plate 151 and is adjacent to the lens assembly 155.

[0065] Among them, the number of the light source components 156 is two. The lens component 155 is installed between the two light source components 156, and the light emitting directions of the two light source components 156 are the same as the acquisition direction of the lens component 155.

[0066] The working principles of the first vision detector 15a, the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e, and the sixth vision detector 15f are as follows: According to the size of the packaging box, the staff adjusts the front and rear positions of the camera body 154 through the screw transmission component 153. The lens component 155 assembled with the camera body 154 is adjusted in the front and rear positions correspondingly by passing through the through hole 151a. The front and rear positions refer to the direction perpendicular to the mounting plate 151.

[0067] Compared with the existing vision acquisition device for packaging boxes, the light source component 156 of the present application is fixedly installed on the mounting plate 151. The staff only needs to adjust the front and rear positions of the lens component 155 without considering the synchronous coordination problem of moving the light source component 156 and the lens component 155 simultaneously. Therefore, the precise position of the lens component 155 can be controlled more easily. Through the screw transmission component 153, the front and rear positions of the camera body 154 and the lens component 155 are directly adjusted, so as to ensure that the imaging of the camera body 154 can be quickly focused, accurately identify the information on the surface of the packaging box, and effectively improve the recognition efficiency and recognition accuracy of the first vision detector 15a, the second vision detector 15b, the third vision detector 15c, the fourth vision detector 15d, the fifth vision detector 15e, and the sixth vision detector 15f.

[0068] In this embodiment, the screw transmission component 153 includes: a screw fixing seat 153a, a fourth screw 153b, and a third sliding block 153c. The screw fixing seat 153a is arranged on the mounting plate 151. The fourth screw 153b is rotatably arranged on the screw fixing seat 153a, and the fourth screw 153b is perpendicular to the mounting plate 151. The third sliding block 153c is provided with a fourth screw hole 153d. The third sliding block 153c is screwed with the fourth screw 153b through the fourth screw hole 153d. The camera body 154 is arranged on the third sliding block 153c.

[0069] The staff rotates the fourth screw 153b, so that the third sliding block 153c screwed with the fourth screw 153b moves back and forth along the fourth screw 153b, realizing the movement adjustment of the camera body 154 along the vertical direction of the mounting plate 151.

[0070] In one embodiment, the screw drive assembly 153 further includes: a plurality of second guide rods 153d, which are arranged on the screw fixing base 153a in parallel with the fourth screw 153b; the third slider 153c is provided with a plurality of second guide rod through holes (not marked in the figure) corresponding to the positions of the second guide rods 153d, and the second guide rods 153d pass through the second guide rod through holes. Among them, the number of the second guide rods 153d is two, adjacent to the fourth screw 153b, and the two second guide rods 153d are respectively arranged at both ends of the fourth screw 153b and are symmetrically arranged with respect to the fourth screw 153b.

[0071] The screw fixing base 153a includes a first support plate 153e, a second support plate 153f and a third support plate 153g. The first support plate 153e is arranged on one side of the mounting plate 11, one side of the second support plate 153f is fixedly installed with the first support plate 153e, and the second support plate 153f is perpendicular to the mounting plate 11; the third support plate 153g is arranged on the other side of the second support plate 153f and is arranged opposite to the first support plate 153e. Both the first support plate 153e and the third support plate 153g are provided with fourth screw through holes (not marked in the figure), and the screw 133 is parallel to the second support plate 153f and can rotate through the fourth screw through holes.

[0072] By providing the second guide rods 153d, the movement direction of the third slider 153c can be restricted, ensuring that when the third slider 153c moves along the fourth screw 153b, its rotation or deflection is prevented; and the second guide rods 153d can bear and disperse the load from the third slider 153c, reducing the stress on the fourth screw 153b and the screw fixing base 153a, thereby prolonging the service life of the fourth screw 153b and the screw fixing base 153a. In other embodiments, the number of the second guide rods 153d can be appropriately adjusted.

[0073] Please also refer to Figure 9 , Figure 9 which is an exploded schematic view of the light source assembly of a six-sided vision inspection device for a packaging box of the present application. In one embodiment, the light source assembly 156 includes: a light source housing 156a, a plurality of lamp beads 156b and a light homogenizing plate 156c. The light source housing 156a is installed on the mounting plate 151 and is adjacent to the lens assembly 155; the light homogenizing plate 156c is detachably assembled with the light source housing 156a, and the light homogenizing plate 156c and the light source housing 156a form a lamp bead accommodation space; the lamp beads 156b are installed in the lamp bead accommodation space.

[0074] Among them, the lamp bead 156b is an LED three-color lamp, and the number is 3. By setting the LED three-color lamp, the packaging box vision acquisition device 1 disclosed in the present application can adaptively adjust the color of the light source according to the color of the surface of the packaging box. The setting of the light homogenizing plate 156c can ensure that the light is evenly distributed in the illumination area, so as to improve the ability of the packaging box vision acquisition device 1 disclosed in the present application to accurately identify the information on the surface of the packaging box, effectively improving the recognition efficiency and recognition accuracy of the packaging box vision acquisition device 1. Of course, in other embodiments, the number of the lamp beads can be adaptively adjusted according to actual lighting requirements.

[0075] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and the present application also intends to include these changes and modifications.

Claims

1. A six-sided visual inspection device for a packaging box, characterized in that: include: A workbench and a machine cover, wherein the machine cover is installed on the workbench and surrounds the workbench to form an accommodating space; A conveying mechanism, the conveying mechanism is mounted on the workbench and is located in the accommodating space, and a first detection section, a second detection section and a defective material separation section are sequentially arranged along the conveying direction of the conveying mechanism, wherein the second detection section is arranged above the first detection section; A lifting mechanism, the lifting mechanism comprising: a lifting power assembly and an adsorption support block, the lifting power assembly is fixedly connected to the adsorption support block, driving the adsorption support block to rise and fall, the lifting power assembly is arranged below the second detection section, and when the lifting power assembly drives the adsorption support block to descend to the lowest position, the surface of the adsorption support block is flush with the surface of the conveying mechanism; a first visual detector, a second visual detector, a third visual detector, a fourth visual detector, a fifth visual detector and a sixth visual detector, wherein the first visual detector is arranged below the first detection section; the second visual detector, the third visual detector, the fourth visual detector, the fifth visual detector and the sixth visual detector are arranged in front of, behind, to the left, to the right and above the second detection section in sequence, and the second visual detector, the third visual detector, the fourth visual detector and the fifth visual detector are all located on a horizontal plane corresponding to when the adsorption support block rises to the highest position; A defective product return mechanism and a material pushing mechanism, wherein the defective product return mechanism is set on the workbench, the defective product return mechanism is arranged parallel to one side of the conveying mechanism, and the material pushing mechanism is arranged on the other side of the conveying mechanism.

2. A six-sided visual inspection device for a packaging box according to claim 1, characterized in that: The pushing mechanism includes: a cylinder mounting seat, a cylinder and a push block. The cylinder mounting seat is arranged on the workbench and is located on the side of the conveying mechanism away from the defective product return mechanism. The cylinder is arranged above the conveying mechanism through the cylinder mounting seat. The piston rod in the cylinder can perform telescopic movement in a direction perpendicular to the conveying mechanism, and the push block is fixedly arranged at the end of the piston rod.

3. A six-sided visual inspection device for a packaging box according to claim 2, characterized in that: The pushing mechanism also includes: a plurality of first guide rods, which are symmetrically arranged with the piston rod of the cylinder as the center, and one end of the first guide rod is slidably arranged on the cylinder mounting seat, and the other end is fixedly installed with the top block.

4. A six-side visual inspection device for a packaging box according to claim 2, characterized in that: The conveying direction of the defective product return mechanism is opposite to the conveying direction of the conveying mechanism.

5. The six-side visual inspection device for a packaging box according to claim 1, characterized in that: The lifting power assembly includes: a transmission mounting seat, a lifting motor and a screw transmission unit. The transmission mounting seat is arranged below the second detection section, the lifting motor is arranged at the bottom of the transmission mounting seat, and the screw transmission unit transmission connects the lifting motor with the adsorption support block.

6. A six-side visual inspection device for a packaging box according to claim 5, characterized in that: The screw transmission unit includes: a first screw fixing seat, a first screw and a transmission member, the first screw fixing seat is arranged on the transmission mounting seat and is arranged opposite to the jacking motor, the first screw is rotatably arranged on the first screw fixing seat, the first screw is perpendicular to the conveying mechanism, and the end thereof is connected to the jacking motor; the transmission member is threadedly connected to the first screw, and the adsorption support block is arranged on the transmission member.

7. A six-side visual inspection device for a packaging box according to claim 1, characterized in that: The conveying mechanism includes: a conveying mounting seat, a first conveying fixed frame, a second conveying fixed frame and a belt conveying assembly. The conveying mounting seat is arranged on the workbench, the first conveying fixed frame and the second conveying fixed frame are erected on the workbench in parallel through the conveying mounting seat, and the belt conveying assembly is arranged between the first conveying fixed frame and the second conveying fixed frame.

8. A six-side visual inspection device for a packaging box according to claim 7, characterized in that: The conveying mounting seat includes: a first movable seat, a second movable seat, a first fixed seat and a second fixed seat. The first movable seat and the second movable seat can be movably set on the workbench, and the first conveying fixed frame is mounted on the workbench through the first movable seat and the second movable seat; the first fixed seat and the second fixed seat are respectively arranged on one side of the first movable seat and the second movable seat, and the second conveying fixed frame is mounted on the workbench through the first fixed seat and the second fixed seat.

9. A six-side visual inspection device for a packaging box according to claim 8, characterized in that: Also includes: The width adjustment mechanism of the conveying mechanism comprises: a first screw fixing seat, a second screw and a first sliding block, the first screw fixing seat is arranged opposite to the other side of the first movable seat, the second screw is rotatably arranged on the first screw fixing seat and the first fixing seat; the first sliding block is screwed with the second screw, and the first movable seat is arranged on the first sliding block.

10. A six-side visual inspection device for a packaging box according to claim 9, characterized in that: The conveying mounting seat further comprises: a third movable seat and a third fixed seat, wherein the third movable seat is movably arranged between the first movable seat and the second movable seat, and the third fixed seat is arranged opposite to one side of the third movable seat; the third movable seat and the third fixed seat are respectively fixedly installed with the first conveying fixed frame and the second conveying fixed frame; The width adjustment mechanism of the conveying mechanism also includes: a second screw fixing seat, a third screw, a second sliding block, two pulleys and a synchronous link. The second screw fixing seat is arranged opposite to the other side of the third movable seat. The third screw can be rotatably arranged on the second screw fixing seat and the third fixing seat. The second sliding block is screwed with the third screw, and the third movable seat is arranged on the second sliding block; the two pulleys are respectively arranged at the same end of the second screw and the third screw, and the synchronous link transmits and connects the two pulleys.

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