Carton outer package label pasting detection device

Abstract

The invention relates to the technical field of cartons, and discloses a carton outer package label pasting detection device which comprises a first conveying belt, a second conveying belt and a carton body, the first conveying belt and the second conveying belt are located at the same height and located on the same straight line, and positioning frames are fixedly connected to the sides, close to each other, of the first conveying belt and the second conveying belt; by arranging the air guide mechanism, air is generated through the suction dual-purpose air pump and is fed into the air bag main body, at the moment, the internal pressure of the air bag main body is changed, the two sides of the outer wall of the carton main body are limited while the air bag main body expands, then the label existence detector detects a label on the outer wall of the carton main body, and the label existence detector detects the label on the outer wall of the carton main body. And then a second motor drives a second driving rod and a supporting frame to rotate by 90 degrees, at the moment, the carton body also rotates by 90 degrees, and the label located at the right angle of the carton body is also detected by a label existence detector.

Description

Technical Field

[0001] This invention relates to the field of cardboard box technology, and more specifically, to a device for detecting labels affixed to cardboard box outer packaging. Background Technology

[0002] Cardboard boxes are one of the main forms of product packaging and are widely used in the packaging and transportation of various products. The labels affixed to the outer packaging of cardboard boxes are an important carrier of information. The accurate and clear text, patterns, barcodes, QR codes and other information on the labels are of vital importance for multiple aspects such as product identification, tracking, sales and after-sales management.

[0003] In existing technologies, some packaging manufacturers affix labels to the two sides of the right angle of a cardboard box to ensure that staff can easily see whether the box is labeled during inspection. Cardboard box label inspection often uses conveyor belts for transport and industrial cameras for detection. However, because the right angle of the cardboard box is 90 degrees, the industrial camera can only capture one side of the label, leaving the label information on the other side unviewable, which can lead to incomplete label information. Therefore, those skilled in the art provide a cardboard box outer packaging label inspection device to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting labels affixed to cardboard box outer packaging, thereby solving the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a label detection device for outer packaging of a carton, comprising a first conveyor belt, a second conveyor belt, and a carton body. The first and second conveyor belts are at the same height and are located in a straight line. A positioning frame is fixedly connected to one side of the first and second conveyor belts that are close to each other. Label presence detectors for detecting labels at the corners of the outer wall of the carton body are placed on both sides of the outer wall of the positioning frame. The top ends of the first and second conveyor belts, located above the positioning frame, are jointly provided with a pushing mechanism that drives the carton body to move in a straight line. A support mechanism for supporting the carton body is provided at the top end of the positioning frame. An air guiding mechanism for limiting the movement of the outer wall of the carton body is provided on the upper end face of the positioning frame, located below the support mechanism. An auxiliary mechanism for further supporting the carton body is provided on the upper end face of the positioning frame.

[0006] As a preferred embodiment of the above technical solution, two baffles are symmetrically fixedly connected to the top end of the first conveyor belt, and pulleys are fixedly connected to the sides of the two baffles that are close to each other. The pulleys are used to guide and limit the carton body. A controller is placed on the outer side wall of the first conveyor belt on the side where one of the label detectors is located.

[0007] As a preferred embodiment of the above technical solution, the pushing mechanism includes a top plate that is fixedly connected to the top of the first conveyor belt and the second conveyor belt. The lower end of the top plate is symmetrically and fixedly connected to two electric guide rails. The moving ends of the two electric guide rails are fixedly connected to guide blocks. The center of the lower bottom end of the two guide blocks is rotatably connected to an L-shaped toothed plate. The two L-shaped toothed plates have toothed grooves at their close ends.

[0008] As a preferred embodiment of the above technical solution, the two L-shaped toothed plates are engaged with each other at their close ends via tooth grooves. A connecting bracket is fixedly connected to the lower bottom end of one of the guide blocks. A first motor is fixedly connected to the outer wall of the connecting bracket. A first drive rod is fixedly connected to the output end of the first motor. The end of one of the L-shaped toothed plates is fixedly connected to the outer wall of the first drive rod. A push rod is fixedly connected to the lower bottom end of both L-shaped toothed plates.

[0009] As a preferred embodiment of the above technical solution, under normal conditions, the push rods are located on both sides of the outer wall of the carton body, and the push rods do not affect the rotation of the carton body under the limiting state. Under working conditions, the two push rods are located on the side of the carton body.

[0010] As a preferred embodiment of the above technical solution, the support mechanism includes a second motor fixedly connected to the center of the top of the positioning frame, a second drive rod fixedly connected to the output end of the second motor, a support frame located above the second motor at the top of the positioning frame, universal wheels fixedly connected in a circular array to the lower end face of the support frame, the movable wheels of the universal wheels being rotatably connected to the upper end face of the positioning frame, the end of the second drive rod away from the second motor being fixedly connected to the center of the lower end face of the support frame, and a plurality of bearing frames symmetrically fixedly connected to the top of the support frame, with a first roller shaft slidably connected to the carton body rotatably connected between every two bearing frames via bearings.

[0011] As a preferred embodiment of the above technical solution, the air guiding mechanism includes a suction and desiccant air pump fixedly connected to the lower end face of the support frame. The air inlet end of the suction and desiccant air pump is fixedly connected to an air inlet tee pipe. Two side plates are symmetrically fixedly connected to the upper top of the support frame. The support legs of the side plates are located between two first roller shafts. An airbag body that limits the two sides of the outer wall of the carton body is fixedly connected to the side of the two side plates that are close to each other. The carton body is located between the two airbag bodies.

[0012] As a preferred embodiment of the above technical solution, the other two ends of the air inlet tee pipe away from the suction dual-purpose air pump are fixedly connected to the air inlet ends of the two airbag bodies, the exhaust end of the suction dual-purpose air pump is fixedly connected to an exhaust pipe, and the end of the exhaust pipe away from the suction dual-purpose air pump is fixedly connected to an exhaust tee pipe.

[0013] As a preferred embodiment of the above technical solution, the auxiliary mechanism includes six fixed supports symmetrically fixedly connected to the bottom of the support frame. Every three fixed supports are located on the same straight line. The four fixed supports located on the outermost wall are slidably sleeved with guide rods. The upper top ends of every two guide rods are fixedly connected to a connecting plate. The upper top end of the connecting plate is rotatably connected to a second roller shaft through a bearing bracket.

[0014] As a preferred embodiment of the above technical solution, two fixed brackets located at the center of the edge of the support frame are internally fixedly connected to sleeves. A piston rod is slidably sleeved inside the sleeve. The upper top of the piston rod is fixedly connected to the lower bottom of the connecting plate. A damping spring is symmetrically fixedly connected to the lower bottom of each connecting plate. The lower bottom of the damping spring is fixedly connected to the end face of the outermost fixed bracket. The other two ends of the exhaust tee pipe away from the suction and suction dual-purpose air pump are fixedly connected to the air inlet ends of the two sleeves. A cooling tee pipe is fixedly connected to the exhaust end of each of the two sleeves. The exhaust ports of the two cooling tee pipes are close to the outer walls of the second motor on both sides. Solenoid valves for controlling gas discharge are installed on the outer walls of the two cooling tee pipes.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention features an air guiding mechanism that generates gas using a dual-purpose suction and extraction air pump and delivers the gas into the interior of the airbag body. This causes a change in the internal pressure of the airbag body, resulting in expansion and limiting the movement of the outer walls of the carton body. A label presence detector then detects the label on the outer wall of the carton body to confirm its presence. Next, a second motor drives a second drive rod and support frame to rotate 90 degrees, causing the carton body to rotate 90 degrees as well. The label located at the right angle of the carton body is then detected by the label presence detector. After detection, the dual-purpose suction and extraction air pump restarts, extracting the gas from the airbag body. The airbag body then contracts and no longer limits the movement of the carton body. The extracted gas is then delivered into the sleeve through an exhaust pipe and an exhaust tee. The internal air pressure of the sleeve increases, overcoming the force of the damping spring. This air pressure pushes the piston rod and connecting plate upwards. When the second roller shaft and the first roller shaft are at the same height, the pushing mechanism is activated to move the carton body. 2. This invention incorporates a cooling three-way pipe. When the carton body is pushed to the top of the second conveyor belt by the pushing mechanism, the two second rollers do not immediately fall. Instead, the solenoid valve is opened only after the other carton body moves to the top of the first roller. At this time, the gas inside the sleeve is discharged through the cooling three-way pipe. Since the discharge direction of the cooling three-way pipe is close to the second motor, after the cooling three-way pipe discharges the gas, it will spray all the gas onto the two side walls of the second motor. The second motor generates heat when it is working. Therefore, when the gas is sprayed onto the outer wall of the second motor, it can effectively accelerate the flow of nearby air, thereby reducing the temperature generated by the second motor itself when it is working. 3. This invention incorporates a pushing mechanism. Since the first roller does not rotate actively, the carton body will not move when it reaches the upper curved surface of the first roller. Instead, the first motor drives the first drive rod and one of the L-shaped toothed plates to rotate. Because both L-shaped toothed plates have toothed grooves at their ends, the other L-shaped toothed plate will rotate as soon as one rotates, with a rotation angle of five to ten degrees. At this time, the pushing rods at the bottom of the two L-shaped toothed plates will be located on the side of the carton body. When the guide block is driven by the moving end of the electric guide rail, it will move linearly and drive the carton body to move linearly under the drive of the pushing rods. In this way, a pushing force can be applied to the carton body before and after detection, thus facilitating its movement on the upper curved surface of the first roller. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a cardboard box outer packaging label affixing detection device; Figure 2 A schematic diagram of the overall side structure of a cardboard box outer packaging label affixing detection device; Figure 3 This is a schematic diagram of the structure of the first and second conveyor belts in a cardboard box outer packaging labeling detection device; Figure 4 This is a schematic diagram of the positioning frame in a cardboard box outer packaging label affixing detection device; Figure 5 This is a schematic diagram of the top structure of the support frame in a cardboard box outer packaging label affixing detection device; Figure 6 This is a schematic diagram of the support frame structure viewed from below in a cardboard box outer packaging label affixing detection device. Figure 7 A schematic diagram showing the position of the airbag body in a cardboard box outer packaging label detection device; Figure 8 This is a schematic diagram of the top structure of the positioning frame in a cardboard box outer packaging label affixing detection device; Figure 9This is a schematic diagram showing the disassembled push mechanism in a cardboard box outer packaging label affixing detection device; Figure 10 This is a schematic diagram of the angle change of the pushing mechanism in a cardboard box outer packaging label affixing detection device.

[0017] Legend: 1. First conveyor belt; 2. Second conveyor belt; 3. Baffle; 4. Positioning frame; 5. Label presence detector; 6. Carton body; 7. Pushing mechanism; 71. Top plate; 72. Electric guide rail; 73. Guide block; 74. Connecting bracket; 75. First motor; 76. First drive rod; 77. L-shaped toothed plate; 78. Pushing rod; 8. Support mechanism; 81. Second motor; 811. Second drive rod; 82. Support frame; 83. First roller; 84. Caster wheel; 9. Air guiding mechanism; 91. Side plate; 92. Airbag body; 93. Dual-purpose suction and suction air pump; 931. Intake tee pipe; 94. Exhaust pipe; 95. Exhaust tee pipe; 10. Auxiliary mechanism; 101. Connecting plate; 102. Second roller shaft; 103. Fixed bracket; 104. Damping spring; 105. Guide rod; 106. Sleeve; 107. Piston rod; 108. Cooling tee pipe; 109. Solenoid valve; 11. Controller. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Please see Figure 1 - Figure 10 As shown, the present invention provides a technical solution: a cardboard box outer packaging label detection device, including a first conveyor belt 1, a second conveyor belt 2, and a cardboard box body 6. The first conveyor belt 1 and the second conveyor belt 2 are at the same height and are located in the same straight line. A positioning frame 4 is fixedly connected to one side of the first conveyor belt 1 and the second conveyor belt 2 that are close to each other. Label presence detectors 5 for detecting labels at the corners of the outer wall of the cardboard box body 6 are placed on both sides of the outer wall of the positioning frame 4. The top ends of the first conveyor belt 1 and the second conveyor belt 2 are located above the positioning frame 4 and are jointly provided with a pushing mechanism 7 that drives the cardboard box body 6 to move in a straight line. A support mechanism 8 for supporting the cardboard box body 6 is provided at the top end of the positioning frame 4. An air guiding mechanism 9 for limiting the two sides of the outer wall of the cardboard box body 6 is provided below the support mechanism 8 on the upper end surface of the positioning frame 4. An auxiliary mechanism 10 for auxiliary support of the cardboard box body 6 is provided on the upper end surface of the positioning frame 4.

[0020] It should be noted that the first conveyor belt 1 and the second conveyor belt 2 are at the same height and collinear, ensuring smooth and continuous conveying of the carton body 6, reducing bumps and deviations during conveying, and improving detection accuracy. The positioning frame 4 connects the two conveyor belts, providing a stable installation base for the other mechanisms. The label presence detector 5 is located on both sides of the outer wall of the positioning frame 4, which can accurately detect labels at the corners of the outer wall of the carton body 6 and promptly identify missing labels. The pushing mechanism 7 is located above the top of the two conveyor belts, which can drive the carton body 6 to move in a straight line, allowing the carton to move along a set path, facilitating the orderly conduct of each detection step. The support mechanism 8 supports the carton body 6 to ensure its stability during the detection process. The air guiding mechanism 9 is located below the support mechanism 8, which limits the two sides of the outer wall of the carton body 6 to prevent the carton from shaking or deviating during movement, further improving detection accuracy. The auxiliary mechanism 10 can provide auxiliary support for the carton body 6, share some of the pressure, and prevent the carton from deforming due to excessive local stress, ensuring the smooth progress of the detection process.

[0021] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 As shown, two baffles 3 are symmetrically fixedly connected to the top end of the first conveyor belt 1. Each of the two baffles 3 is fixedly connected to a pulley on the side that is close to each other. The pulley is used to guide and limit the carton body 6. A controller 11 is placed on the outer side wall of the first conveyor belt 1 on the side of one of the label presence detectors 5.

[0022] It should be noted that the two baffles 3 symmetrically arranged at the top of the first conveyor belt 1 can effectively constrain the conveying range of the carton body 6, prevent it from deviating significantly during the conveying process, and ensure that the carton moves stably along the predetermined route, laying the foundation for subsequent accurate detection. The pulleys fixed on one side of the baffles 3 can convert the sliding friction of the carton body 6 into rolling friction when they come into contact with it, greatly reducing frictional resistance and making the carton conveying smoother. The controller 11 placed on the outer wall of the first conveyor belt 1 on one side of the label presence detector 5 serves as the "brain" of the entire detection device. It can centrally control the operation of each mechanism. It can receive the detection signal from the label presence detector 5 in real time and make a judgment quickly according to the preset program. Once an abnormal label is detected, it can immediately issue an instruction and sound an alarm, although the alarm is not shown in the figure.

[0023] As one implementation method in this embodiment, please refer to Figure 2 , Figure 9 and Figure 10As shown, the pushing mechanism 7 includes a top plate 71 that is fixedly connected to the top of the first conveyor belt 1 and the second conveyor belt 2. Two electric guide rails 72 are symmetrically fixedly connected to the lower end of the top plate 71. Guide blocks 73 are fixedly connected to the moving ends of the two electric guide rails 72. L-shaped toothed plates 77 are rotatably connected to the center of the lower bottom end of the two guide blocks 73. The two L-shaped toothed plates 77 have toothed grooves at their close ends.

[0024] It should be noted that, driven by the electric guide rail 72, the guide block 73 can move smoothly along the set path, achieving precise control of the pushing position and distance. The toothed groove design can effectively drive the two L-shaped toothed plates 77 to mesh with each other, thereby driving the L-shaped toothed plates 77 to make arc-shaped movements. At this time, the angle of the other end of the two L-shaped toothed plates 77 will change.

[0025] As one implementation method in this embodiment, please refer to Figure 2 , Figure 9 and Figure 10 As shown, the two L-shaped toothed plates 77 are close to each other at one end and mesh with each other through tooth grooves. A connecting bracket 74 is fixedly connected to the bottom end of one of the guide blocks 73. A first motor 75 is fixedly connected to the outer wall of the connecting bracket 74. A first drive rod 76 is fixedly connected to the output end of the first motor 75. The end of one of the L-shaped toothed plates 77 is fixedly connected to the outer wall of the first drive rod 76. Push rods 78 are fixedly connected to the bottom ends of both L-shaped toothed plates 77. Under normal conditions, the push rods 78 are located on both sides of the outer wall of the carton body 6, and the push rods 78 do not affect the rotation of the carton body 6 in the limited state. Under working conditions, the two push rods 78 are located on the side of the carton body 6.

[0026] It should be noted that the two L-shaped toothed plates 77 are closely engaged at their adjacent ends via tooth grooves, ensuring a tight fit, precise and stable transmission. This guarantees that the two L-shaped toothed plates 77 move synchronously and in opposite directions, making the pushing action coordinated and consistent. This prevents the carton body 6 from shifting or jamming due to asynchronous pushing on both sides, thus improving pushing accuracy. The connecting bracket 74 securely fixes the first motor 75 to the bottom end of the guide block 73. The first motor 75 drives one of the L-shaped toothed plates 77 to rotate via the first drive rod 76, thereby driving the other L-shaped toothed plate 77 to move synchronously, achieving efficient mechanical transmission and power delivery. Reliable. Under normal conditions, the push rods 78 are located on both sides of the outer wall of the carton body 6 and do not affect its rotation. This allows the carton to be adjusted in angle as needed during transportation. For example, if the carton may need to be rotated for full label inspection during testing, this design does not affect the operation and ensures the flexibility of the inspection process. In the working state, the two push rods 78 are located on the side of the carton body 6 under the action of the L-shaped toothed plate 77. They can apply a stable pushing force to the carton and push it to the designated position in a straight line to meet the requirements of subsequent inspection processes, improve overall production efficiency, and ensure that the carton label inspection work is carried out smoothly and efficiently.

[0027] As one implementation method in this embodiment, please refer to Figure 3 , Figure 4 and Figure 7 As shown, the support mechanism 8 includes a second motor 81 fixedly connected to the center of the top of the positioning frame 4. The output end of the second motor 81 is fixedly connected to a second drive rod 811. A support frame 82 is provided above the second motor 81 at the top of the positioning frame 4. A universal wheel 84 is fixedly connected in a circular array to the lower end face of the support frame 82. The moving wheels of the universal wheel 84 are rotatably connected to the upper end face of the positioning frame 4. The end of the second drive rod 81 away from the second motor 81 is fixedly connected to the center of the lower end face of the support frame 82. Several bearing frames are symmetrically fixedly connected to the top of the support frame 82. A first roller shaft 83 that is slidably connected to the carton body 6 is rotatably connected between every two bearing frames through a bearing.

[0028] It should be noted that the second motor 81, as a power source, drives the support frame 82 to rotate via the second drive rod 811. The angle of the support frame 82 can be adjusted as needed to meet the support requirements of the carton body 6 under different testing scenarios, thereby enhancing the applicability of the device. The universal wheels 84 arranged in a ring on the lower end face of the support frame 82 are rotatably connected to the upper end face of the positioning frame 4. When the support frame 82 rotates, the universal wheels 84 can reduce the rotational friction, making the rotation process smoother. The universal wheels 84 can also provide a certain support force for the support frame 82. When the carton body 6 moves under the action of the pushing mechanism 7, the first roller shaft 83 can roll with the movement of the carton, converting sliding friction into rolling friction, greatly reducing frictional resistance, making the carton move more easily and quickly, avoiding wear or jamming of the carton surface due to excessive friction, and ensuring the integrity of the carton body 6 and the smoothness of the conveying.

[0029] As one implementation method in this embodiment, please refer to Figure 5 , Figure 7 and Figure 8 As shown, the air guiding mechanism 9 includes a suction dual-purpose air pump 93 fixedly connected to the lower end face of the support frame 82. The air inlet end of the suction dual-purpose air pump 93 is fixedly connected to an air inlet three-way pipe 931. Two side plates 91 are symmetrically fixedly connected to the upper top of the support frame 82. The support legs of the side plates 91 are located between the two first roller shafts 83. An airbag body 92 that limits the two sides of the outer wall of the carton body 6 is fixedly connected to the side of the two side plates 91 that are close to each other. The carton body 6 is located between the two airbag bodies 92. The other two ends of the air inlet three-way pipe 931 away from the suction dual-purpose air pump 93 are fixedly connected to the air inlet ends of the two airbag bodies 92. An exhaust pipe 94 is fixedly connected to the exhaust end of the suction dual-purpose air pump 93. An exhaust three-way pipe 95 is fixedly connected to the end of the exhaust pipe 94 away from the suction dual-purpose air pump 93.

[0030] It should be noted that the dual-purpose suction and extraction air pump 93 has both suction and extraction functions. Through the air inlet three-way pipe 931, it can simultaneously inflate the two airbag bodies 92, causing the airbag bodies 92 to expand rapidly and fit tightly against the outer wall of the carton body 6 from both sides, precisely limiting its position and effectively preventing the carton from shaking or shifting during the inspection process, ensuring accurate detection position and improving detection precision. When it is necessary to adjust or remove the carton, the dual-purpose suction and extraction air pump 93 can extract the gas from the airbag body 92 through the air inlet three-way pipe 931, causing the airbag to contract and releasing the limiting effect on the carton. The operation is convenient. The exhaust pipe 94 and exhaust three-way pipe 95 can orderly discharge the gas discharged by the dual-purpose suction and extraction air pump 93, avoiding gas accumulation in the device and affecting normal operation.

[0031] As one implementation method in this embodiment, please refer to Figure 4 , Figure 5 and Figure 6 As shown, the auxiliary mechanism 10 includes six fixed supports 103 symmetrically fixedly connected to the bottom of the support frame 82. Every three fixed supports 103 are located on the same straight line. The four fixed supports 103 located on the outermost wall are slidably sleeved with guide rods 105. The upper top ends of every two guide rods 105 are fixedly connected to a connecting plate 101. The upper top end of the connecting plate 101 is rotatably connected to a second roller shaft 102 through a bearing frame.

[0032] It should be noted that the connecting plate 101, which is fixed to the top of every two guide rods 105, provides a stable mounting platform for the second roller 102. The second roller 102, which is rotatably connected to the top of the connecting plate 101 through the bearing bracket, can roll into contact with the surface of the carton body 6 when it moves, converting sliding friction into rolling friction, greatly reducing frictional resistance, making the carton move more smoothly, avoiding wear or jamming of the carton surface due to excessive friction, and ensuring the integrity of the carton. At the same time, the second roller 102 can also play an auxiliary support role for the carton body 6 and share some of the pressure. The up and down movement of the connecting plate 101 is mainly to avoid affecting the rotational movement of the support frame 82 and to avoid touching the first conveyor belt 1 and the second conveyor belt 2.

[0033] As one implementation method in this embodiment, please refer to Figure 4 , Figure 5 and Figure 6As shown, two fixed brackets 103 located at the center of the edge of the support frame 82 are fixedly connected to sleeves 106. Piston rods 107 are slidably sleeved inside the sleeves 106. The upper top of the piston rods 107 is fixedly connected to the lower bottom of the connecting plate 101. Damping springs 104 are symmetrically fixedly connected to the lower bottom of each connecting plate 101. The lower bottom of the damping springs 104 is fixedly connected to the end face of the outermost fixed bracket 103. The other two ends of the exhaust three-way pipe 95 away from the suction dual-purpose air pump 93 are fixedly connected to the air inlet ends of the two sleeves 106. Cooling three-way pipes 108 are fixedly connected to the exhaust ends of the two sleeves 106. The exhaust ports of the two cooling three-way pipes 108 are close to the outer walls of the second motor 81. Solenoid valves 109 for controlling gas discharge are installed on the outer walls of the two cooling three-way pipes 108.

[0034] It should be noted that the sleeve 106 and the piston rod 107 are slidably sleeved together. When the dual-purpose suction and suction air pump 93 inflates the sleeve 106 through the exhaust tee pipe 95, the piston rod 107 pushes the connecting plate 101, which can adjust the position of the second roller shaft 102 so that it is flush with the first roller shaft 83 above the support frame 82, thus avoiding affecting the movement of the carton body 6. The damping spring 104 is symmetrically fixed between the connecting plate 101 and the outermost fixed bracket 103. When the connecting plate 101 descends, it can provide a restoring force to ensure that the position adjustment of the second roller shaft 102 is stable. When the gas inside the sleeve 106 needs to be discharged, the cooling tee pipe 108 blows the gas toward the second motor 81, which can effectively dissipate heat from the second motor 81 and effectively reduce its temperature.

[0035] Working principle: The carton body 6 moves at the moving end of the first conveyor belt 1 and is guided by several pulleys. When it moves to the end of the first conveyor belt 1, the second roller shafts 102 located on both sides of the outer wall of the support frame 82 are still flush with the first roller shaft 83. Therefore, the bottom end of the carton body 6 contacts the curved surfaces of the first roller shaft 83 and the top of the second roller shaft 102, and slides. Since the first roller shaft 83 and the second roller shaft 102 do not have independent movement, the first motor 75 can be started to drive the first drive rod 76 and one of the L-shaped toothed plates 77 to rotate. Because the ends of the two L-shaped toothed plates 77 are provided with tooth grooves, when one rotates, the other will also rotate. The rotation angle is between five and ten degrees, so that the push rods 78 at the bottom of the two L-shaped toothed plates 77 are located on the carton. On the side of the main body 6, the guide block 73 moves linearly under the drive of the moving end of the electric guide rail 72, and pushes the carton body 6 to move linearly under the drive of the push rod 78. This method can apply a push force to the carton body 6 before inspection, which facilitates its movement on the top curved surface of the first roller shaft 83, improves the flexibility of the carton movement and the smoothness of the inspection process. Since the two L-shaped toothed plates 77 will gradually move away from each other when they make arc movements due to the curved surface of the ends after meshing, it is necessary to control the rotation angle of the two to keep the two L-shaped toothed plates 77 in a meshing state. After adjustment, the meshing of the L-shaped toothed plates 77 can be guaranteed between five and ten degrees, and the push rod 78 can also be ensured to be located on one side of the carton body 6 in the working state. When the carton body 6 moves to the top of the first roller 83, the suction dual-purpose air pump 93 can be started to generate gas. The gas is sent into the airbag body 92 through the air inlet three-way pipe 931. As the gas enters, the pressure inside the airbag body 92 changes and expands, which precisely limits the two sides of the outer wall of the carton body 6 to ensure the stability of the carton position. At this time, the label presence detector 5 detects the label on the outer wall of the carton body 6 to determine whether the label is present. Then, the second motor 81 drives the second drive rod 811 and the support frame 82 to rotate 90 degrees. The carton body 6 rotates accordingly, and the label at its right angle can also be detected by the label presence detector 5, realizing all-round detection. Before the support frame 82 rotates, the gas inside the sleeve 106 that provides support for the second roller shaft 102 has been discharged. At this time, under the action of the damping spring 104, the connecting plate 101 can be effectively driven to descend. At the same time, when both second roller shafts 102 have descended, the rotation of the support frame 82 will not be affected, and it will not touch the first conveyor belt 1 and the second conveyor belt 2. The gas inside the sleeve 106 is discharged through the cooling three-way pipe 108, and the discharge direction is close to the second motor 81. Since the second motor 81 generates heat when it is working, the gas is sprayed on its two side walls, which can effectively accelerate the airflow in the vicinity, reduce the temperature generated by the second motor 81 when it is working, and ensure the long-term stable operation of the device. After the test is completed, the dual-purpose suction and suction air pump 93 is restarted to extract the gas from the airbag body 92. The airbag body 92 contracts, releasing the restriction on the carton body 6. The extracted gas is sent into the sleeve 106 through the exhaust pipe 94 and the exhaust tee pipe 95, increasing the air pressure inside the sleeve 106. This overcomes the elastic force of the damping spring 104, pushing the piston rod 107 and the connecting plate 101 upward. When the second roller 102 and the first roller 83 are at the same height, the pushing mechanism 7 can push the carton body 6 to move. The entire process realizes stable detection of the carton and preparation for subsequent movement, improving the accuracy of the detection and the continuity of the device operation. The workflow of 7 is the same as described above. At this time, the carton body 6 will come into contact with the moving belt of the second conveyor belt 2. The second conveyor belt 2 will drive the carton body 6 to move. The carton body 6 that passes the inspection will continue to move, while the carton body 6 that fails the inspection will be detected and an alarm will be triggered simultaneously (the alarm is not shown in the figure). The controller 11 will control all the electronic components mentioned in this article through wireless reception and wireless control module. When the label detector 5 detects a non-conforming product, it will transmit the data to the controller 11 and trigger an alarm through the controller 11, thereby facilitating the movement of the vehicle by the staff. One-way air inlet valves are installed at the two exhaust ends of the exhaust tee pipe 95 near the two sleeves 106, which can effectively prevent gas leakage after entering the exhaust tee pipe 95. When the suction and suction dual-purpose air pump 93 is working, it will always supply gas to the airbag body 92. When the support frame 82 needs to rotate, it will drive the structure below the support frame 82 to rotate synchronously. The universal wheels 84 provide support for the support frame 82. The second drive rod 811 provides position limitation for the support frame 82, ensuring that the support frame 82 can only rotate within this area.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A label-attaching detection device for cardboard box outer packaging, comprising a first conveyor belt (1), a second conveyor belt (2), and a cardboard box body (6), characterized in that: The first conveyor belt (1) and the second conveyor belt (2) are at the same height and are located in the same straight line; A positioning frame (4) is fixedly connected to one side of the first conveyor belt (1) and the second conveyor belt (2) that are close to each other. A label presence detector (5) for detecting the label at the corner of the outer wall of the carton body (6) is placed on both sides of the outer wall of the positioning frame (4). The top ends of the first conveyor belt (1) and the second conveyor belt (2) are located above the positioning frame (4) and are jointly provided with a pushing mechanism (7) that drives the carton body (6) to make linear motion. The upper top of the positioning frame (4) is provided with a support mechanism (8) for supporting the carton body (6), and the upper end face of the positioning frame (4) is provided with an air guiding mechanism (9) for limiting the two sides of the outer wall of the carton body (6) below the support mechanism (8). The upper end face of the positioning frame (4) is provided with an auxiliary mechanism (10) for auxiliary support of the carton body (6).

2. The cardboard box outer packaging label detection device according to claim 1, characterized in that: Two baffles (3) are symmetrically fixedly connected to the top end of the first conveyor belt (1), and pulleys are fixedly connected to the side of the two baffles (3) that are close to each other. The pulley is used to guide and limit the carton body (6), and a controller (11) is placed on the outer side of the first conveyor belt (1) on one side of a label presence detector (5).

3. The cardboard box outer packaging label detection device according to claim 1, characterized in that: The pushing mechanism (7) includes a top plate (71) that is fixedly connected to the top of the first conveyor belt (1) and the second conveyor belt (2), and two electric guide rails (72) are symmetrically fixedly connected to the lower end of the top plate (71). The moving ends of the two electric guide rails (72) are fixedly connected to guide blocks (73), and the center of the lower bottom of the two guide blocks (73) is rotatably connected to L-shaped toothed plates (77). The two L-shaped toothed plates (77) have toothed grooves at their close ends.

4. The cardboard box outer packaging label detection device according to claim 3, characterized in that: The two L-shaped toothed plates (77) are engaged with each other at their close ends through tooth grooves; One of the guide blocks (73) has a connecting bracket (74) fixedly connected to its lower end. A first motor (75) is fixedly connected to the outer side wall of the connecting bracket (74). A first drive rod (76) is fixedly connected to the output end of the first motor (75). One of the L-shaped toothed plates (77) is fixedly connected to the outer wall of the first drive rod (76) at one end, and a push rod (78) is fixedly connected to the bottom end of both L-shaped toothed plates (77).

5. The cardboard box outer packaging label detection device according to claim 4, characterized in that: Under normal conditions, the push rod (78) is located on both sides of the outer wall of the carton body (6); Furthermore, the push rod (78) will not affect the rotation of the carton body (6) in the limiting state, and in the working state, the two push rods (78) are located on the side of the carton body (6).

6. The cardboard box outer packaging label detection device according to claim 1, characterized in that: The support mechanism (8) includes a second motor (81) fixedly connected to the center of the top of the positioning frame (4), and the output end of the second motor (81) is fixedly connected to a second drive rod (811). The upper top of the positioning frame (4) is provided with a support frame (82) above the second motor (81). The lower end face of the support frame (82) is fixedly connected with a ring array of casters (84). The moving wheels of the casters (84) are rotatably connected to the upper end face of the positioning frame (4). The end of the second drive rod (811) away from the second motor (81) is fixedly connected to the center of the lower end face of the support frame (82). Several bearing frames are symmetrically fixedly connected to the upper top of the support frame (82). A first roller shaft (83) that is slidably connected to the carton body (6) is rotatably connected between each two bearing frames through a bearing.

7. The cardboard box outer packaging label detection device according to claim 6, characterized in that: The air guiding mechanism (9) includes a suction dual-purpose air pump (93) fixedly connected to the lower end face of the support frame (82), and the air inlet end of the suction dual-purpose air pump (93) is fixedly connected to an air inlet three-way pipe (931). The upper top of the support frame (82) is symmetrically fixedly connected to two side plates (91), and the support legs of the side plates (91) are located between the two first roller shafts (83). The two side panels (91) are fixedly connected to an airbag body (92) that limits the two sides of the outer wall of the carton body (6), and the carton body (6) is located between the two airbag bodies (92).

8. The cardboard box outer packaging label detection device according to claim 7, characterized in that: The other two ends of the air inlet tee (931) away from the suction dual-purpose air pump (93) are fixedly connected to the air inlet ends of the two airbag bodies (92); The exhaust end of the dual-purpose suction and desiccant (93) is fixedly connected to an exhaust pipe (94), and the end of the exhaust pipe (94) away from the dual-purpose suction and desiccant (93) is fixedly connected to an exhaust tee pipe (95).

9. A cardboard box outer packaging label detection device according to claim 8, characterized in that: The auxiliary mechanism (10) includes six fixed supports (103) symmetrically fixedly connected to the bottom of the support frame (82). Every three fixed supports (103) are located on the same straight line, and the four fixed supports (103) located on the outermost wall are slidably sleeved with guide rods (105). The upper top ends of each pair of guide rods (105) are fixedly connected to a connecting plate (101), and the upper top end of the connecting plate (101) is rotatably connected to a second roller shaft (102) via a bearing bracket.

10. A cardboard box outer packaging label detection device according to claim 9, characterized in that: Two fixed brackets (103) located at the center of the edge of the support frame (82) are fixedly connected to a sleeve (106), and a piston rod (107) is slidably sleeved inside the sleeve (106). The upper top of the piston rod (107) is fixedly connected to the lower bottom of the connecting plate (101), and each connecting plate (101) is symmetrically fixedly connected to a damping spring (104) at its lower bottom. The lower bottom of the damping spring (104) is fixedly connected to the end face of the outermost fixed bracket (103). The other two ends of the exhaust tee (95) away from the suction dual-purpose air pump (93) are fixedly connected to the air inlet of the two sleeves (106). The exhaust ends of the two sleeves (106) are fixedly connected to the cooling tee (108). The exhaust ports of the two cooling tee (108) are close to the outer walls of the second motor (81). The outer walls of the two cooling tee (108) are equipped with solenoid valves (109) for controlling gas discharge.

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