Visual identification device for side label characters and abnormal pasting

Abstract

The utility model provides a side label character and abnormal pasting visual identification device which comprises a conveying belt, a mechanical arm for uncovering a material box is installed on the side face, close to the feeding end and parallel to the conveying direction, of a machine frame, and a box pressing unit is installed on the machine frame along the discharging end of the conveying belt. The industrial camera is arranged on the side surface of the rack; the tops of large push plates in the material pushing unit extend upwards and are arranged on the two sides of the material box, and the material box is clamped and driven to move up and down. The tops of cover closing clamping plates in the cover closing units extend upwards and are arranged on the two sides of the material box. The industrial camera is installed on the machine frame in the material box conveying direction of the conveying belt, the material pushing unit and the cover closing unit are matched in the shooting area of the industrial camera to achieve the pushing and lifting effects on the material box, the upper cover of the shot material box is preliminarily covered through the cover closing unit in cooperation with shooting of the industrial camera, and therefore the material box can be conveniently and rapidly pushed and lifted. And the assembly is completed in the cover closing unit, so that the rapid identification and detection of each material box are realized.

Description

Technical Field

[0001] The utility model relates to the field of label detection, in particular to the technical field of identifying products one by one when they leave the warehouse, and specifically is a device for visually identifying characters on side labels and abnormal pasting. Background Art

[0002] As the competition in the semiconductor product market becomes increasingly fierce, competitiveness is ensured, and as customer demand continues to increase, the quality of shipped products and labor costs have become the company's primary goals. Every day, we must not only ensure the smooth progress of the production plan and complete the shipping plan; we must also ensure that the quality of shipped products in each process meets customer needs.

[0003] In order to ensure a dominant position in the semiconductor market, the requirements for product quality are getting higher and higher. In order to prevent quality accidents, mixing of materials, incorrect quantities, etc., each box of products currently shipped out of the warehouse needs to be labeled on the side of the product placement box, marking the product information and box number information, and the label printing information content must be consistent with the computer system. The importance of label information determines that the characters printed on each box of product labels must be complete and clear, and the pasting must be stable and reliable.

[0004] However, in actual production, due to the investment in research and development of automated equipment and the need to save labor costs, there is not enough manpower to check the side labels of each box during product testing, and the manpower arrangement for inspection results in unnecessary waste of human resources. In addition, during equipment operation, due to poor printer heads, carbon ribbon contamination, and problems with the equipment's labeling mechanism, problems such as poor label printing characters, missing labels, repeated label pasting, label pasting beyond the edge of the box, and wrinkled label pasting may occur. Poor outflow causes quality accidents and customer complaints. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a side label character and pasting abnormality visual recognition device to solve the difficulties of the prior art.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a side label character and pasting abnormality visual recognition device, comprising:

[0007] Conveyor belt 1, the conveyor belt 1 is installed on the frame 2, one side along the direction of the conveyor belt 1 is the feeding end, and the other side is the discharging end, and the material box to be detected is set on the conveyor belt 1 and is transmitted along the moving direction of the conveyor belt 1;

[0008] A frame 2, a side of the frame 2 close to the feeding end and parallel to the transmission direction is provided with a manipulator 3 for opening the cover of the material box, and a box pressing unit is provided on the frame 2 along the discharging end of the conveyor belt 1;

[0009] An industrial camera 4, wherein the industrial camera 4 is arranged on the side of the frame 2, and the camera head of the industrial camera 4 is arranged to be tilted toward the direction of the label adhered to the side of the material box;

[0010] A material pushing unit is arranged in the frame 2, and the top of the large push plate 5 extends upward and is arranged on both sides of the material box, clamping the material box and driving the material box to move up and down, corresponding to the camera direction adjustment of the industrial camera 4;

[0011] The covering unit is arranged in the frame 2, and the top of the covering clamp 6 extends upward and is arranged on both sides of the material box. In the initial state, the covering clamp 6 in the covering unit is arranged on the outside of the large push plate 5. When moving, the covering clamp 6 and the large push plate 5 are nested with each other.

[0012] According to the preferred embodiment, a cover plate 7 is also installed between the top of the frame 2 and the conveyor belt 1, and the cover plate 7 is arranged on both sides of the material box;

[0013] The inner side of the cover plate 7 close to one end of the pushing unit and the cover closing unit is provided with an avoidance groove 8 corresponding to the cover closing clamping plate 6 and the large pushing plate 5.

[0014] According to a preferred embodiment, a cylinder is installed at the bottom of the cover plate 7 to adjust the installation height of the cover plate 7 .

[0015] According to a preferred embodiment, a sensor 9 is installed on one side of the cover plate 7 close to the feeding end, and a sensor reflector 10 is installed on the top of the cover plate 7 opposite to the industrial camera 4 .

[0016] According to a preferred embodiment, the pushing unit comprises:

[0017] A pusher support plate 11, which is arranged on the frame 2, with the top arranged horizontally and a lifting cylinder 29 arranged at the bottom;

[0018] The material pushing and clamping cylinder 12 is installed on the material pushing support plate 11, and the push plates on both sides move back and forth perpendicular to the conveying direction of the transmission belt;

[0019] A pusher connector 13, which is L-shaped and has a large push plate 5 mounted on the end surface of the horizontal end;

[0020] The large push plate 5 is vertically arranged, and the top thereof passes through the avoidance groove 8. A short strip 14 is pasted on one end of the top of the large push plate 5 close to the material box.

[0021] According to a preferred embodiment, the lid closing unit comprises:

[0022] A cover support plate 15, the bottom of which is mounted on the pusher support plate 11 through a bracket and is located above the pusher clamping cylinder 12;

[0023] The cover closing clamping cylinder 16 is installed on the cover closing support plate 15, and the push plates on both sides move back and forth perpendicular to the conveying direction of the transmission belt;

[0024] The cover closing connector 17 is L-shaped, and the cover closing clamp 6 is installed on the end surface of the material pushing connector 13 that passes through the large push plate 5 at the horizontal end;

[0025] The closing clamp plate 6 is vertically arranged, and the top of the closing clamp plate 6 passes through the avoidance groove 8. The top of the closing clamp plate 6 is pasted with a rubber strip 18 at one end close to the material box, and the end away from the material box is bent and buckled on the cover plate 7.

[0026] According to a preferred solution, the cover support plate 15 is arranged higher than the horizontal end of the pusher connector 13 .

[0027] According to a preferred solution, the material pushing unit and the cover closing unit are coaxially arranged.

[0028] According to the preferred embodiment, the large push plate 5 is provided with a push plate notch 19 which passes through the two intermediate ends of the cover clamping plate 6;

[0029] The closing clamping plate 6 is provided with three intermittent clamping plate gaps 20 corresponding to the two push plate gaps 19, wherein a connecting structure 21 is formed between two adjacent clamping plate gaps 20, and a pair of the connecting structures 21 is arranged up and down;

[0030] The rubber strip 18 is mounted on the connecting structure 21 located above.

[0031] According to a preferred solution, the length of the rubber strip 18 is greater than the length of the corresponding connecting structure 21 .

[0032] According to a preferred embodiment, the box pressing unit comprises:

[0033] A support frame 23, the support frame 23 is mounted on the frame 2, the top of which forms a support plate 25 for mounting a box pressing cylinder 24, and a space for pressing a material box is formed on the side close to the conveyor belt 1 below;

[0034] A connecting plate 26, which is horizontally arranged in the space of the material box pressing box, and the top of which is connected to the cylinder shaft of the box pressing cylinder 24;

[0035] The pressing plate 27 is arranged parallel to the lower side of the connecting plate 26 and is directly connected to the connecting plate 26 via a guide rod 28 . The guide rod 28 is provided with a spring 22 .

[0036] According to the preferred embodiment, the conveyor belt 1 in the pushing unit and the lid closing unit and the conveyor belt in the box pressing unit (the conveyor belt is not shown in the figure) are independently controlled by their own motors.

[0037] The utility model installs an industrial camera on a frame along the direction in which the material box is transported by the conveyor belt, and utilizes a pushing unit and a cover closing unit to cooperate with each other to realize the pushing and lifting effects on the material box within the shooting area of ​​the industrial camera. To match the shooting of the industrial camera, the cover closing unit is used to realize the preliminary closing of the upper cover of the material box after shooting until the assembly is completed in the cover closing unit, which does not affect the transportation operation of the entire material box and can also realize the rapid identification and detection of each material box.

[0038] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0040] Figure 2 The display is a three-dimensional schematic diagram of the internal structure of the utility model;

[0041] Figure 3 The figure shows an enlarged schematic diagram of the three-dimensional structure of the material pushing unit and the cover closing unit in the present utility model;

[0042] Figure 4 It is a three-dimensional enlarged schematic diagram of the partial structure of the material pushing unit and the cover closing unit in the utility model;

[0043] Figure 5 Shown is an enlarged schematic diagram of the three-dimensional structure of the box pressing unit in the present utility model;

[0044] Description of symbols

[0045] 1. Conveyor belt; 2. Rack; 3. Robot; 4. Industrial camera; 5. Large push plate; 6. Covering plate; 7. Cover plate;

[0046] 8. Avoidance groove; 9. Sensor; 10. Reflector; 11. Push material support plate; 12. Push material clamping cylinder; 13. Push material connecting piece; 14. Short strip; 15. Cover support plate; 16. Cover clamping cylinder; 17. Cover connecting piece; 18. Rubber strip;

[0047] 19. Push plate notch; 20. Clamp plate notch; 21. Connection structure; 22. Spring; 23. Support frame; 24. Press box cylinder;

[0048] 25. Support plate; 26. Connecting plate; 27. Pressing plate; 28. Guide rod; 29. ​​Lifting cylinder. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0051] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The utility model proposes a side label character and pasting abnormality visual recognition device for use in warehouse inspection. The utility model does not limit the types of box bodies and labels, but the structure of the side label character and pasting abnormality visual recognition device is particularly suitable for the need to inspect defective box side labels.

[0053] In general, the side label character and pasting abnormality visual recognition device proposed by the utility model mainly includes a conveyor belt 1, a frame 2, an industrial camera 4, a material pushing unit and a cover closing unit. Figure 1 , which shows the arrangement relationship of the conveyor belt 1, the frame 2, the industrial camera 4, the pushing unit and the covering unit.

[0054] In order to achieve the purpose of visual inspection of bad label characters and pasting, the problem in the background technology that in actual production, due to the use of research and development of automated equipment and the saving of labor costs, there is no sufficient manpower to check the side labels of each box during product testing, and the manpower arrangement inspection causes unnecessary waste of human resources; in addition, during the operation of the equipment, due to poor printer heads, carbon ribbon pollution and equipment labeling mechanism problems, problems such as poor label printing characters, missing, repeated label pasting, pasting beyond the edge of the box, and wrinkled label pasting may occur, and poor outflow may cause quality accidents and customer complaints. For this reason, in the technical solution provided by this embodiment, an industrial camera 4 is installed on the frame 2 along the direction of conveying the material box by the conveyor belt 1, and the material pushing unit and the cover closing unit are used to cooperate in the shooting area of ​​the industrial camera 4 to realize the pushing and lifting of the material box, match the shooting of the industrial camera 4, and use the cover closing unit to realize the preliminary closing of the upper cover of the material box after shooting until the assembly is completed in the cover closing unit, which does not affect the transportation operation of the entire material box and can also realize the rapid identification and detection of each material box.

[0055] like Figure 1 As shown, the conveyor belt 1 is installed on the frame 2, one side along the direction of the conveyor belt 1 is the feeding end, and the other side is the discharging end. The material box to be detected is set on the conveyor belt 1 and is transmitted along the moving direction of the conveyor belt 1. A material box opening robot 3 is installed on the side of the frame 2 close to the feeding end and parallel to the transmission direction. The robot 3 is used to take and put back the top structure of the material box to be photographed. A box pressing unit is installed on the frame 2 along the discharging end of the conveyor belt 1 to realize the box pressing effect between the material box and the top structure after the shooting is completed. After the box is pressed, it is convenient for the subsequent transportation to carry out the normal next process operation.

[0056] In this embodiment, an industrial camera 4 is installed on the side of the frame 2 for the structure in which the label for ingredient box detection is pasted on the side. The camera head of the industrial camera 4 is preferably tilted toward the direction of the label adhered to the side of the ingredient box, which can improve the efficiency of shooting and help ensure the detection effect.

[0057] As mentioned above, a material pushing unit and a cover closing unit are arranged in a unit located in the frame 2 and passing through the shooting area of ​​the industrial camera 4, wherein the top of the large push plate 5 in the material pushing unit extends upward and is arranged on both sides of the material box, clamping the material box and driving the material box to move up and down, so as to adjust the camera direction of the corresponding industrial camera 4, so as to adapt to different sizes of material boxes and capture appropriate label information, so as to achieve accurate recognition effect;

[0058] Specifically, a cover plate 7 is first installed between the top of the frame 2 and the conveyor belt 1, and the cover plate 7 is arranged on both sides of the material box. A cylinder is also installed at the bottom of the cover plate 7 to adjust the installation height of the cover plate 7, so as to achieve the purpose of compensating the gap between the conveyor belt 1 and the frame 2. The structure of the frame 1 can achieve a reasonable spacing for the material box to pass through by using cover plates 7 of different sizes. In addition, in order to cooperate with the push unit and the cover closing unit to adjust the material box, the inner side of the cover plate 7 close to one end of the push unit and the cover closing unit is provided with an avoidance groove 8 corresponding to the cover closing clamping plate 6 and the large push plate 5;

[0059] Next, the pushing unit is provided with a pushing support plate 11 on the frame 2, and a lifting cylinder 29 is provided at the bottom, so as to achieve the purpose of adjusting the upper and lower heights of the pushing unit. The top of the pushing support plate 11 is horizontally provided for installing the pushing clamping cylinder 12. The pushing plates on both sides of the pushing clamping cylinder 12 move back and forth perpendicular to the conveying direction of the transmission belt. The pushing connecting piece 13 is provided in an L shape, and a large pushing plate 5 is installed on the end face of the horizontal end. The large pushing plate 5 is vertically provided, and the top passes through the avoidance groove 8. A short strip 14 is pasted on the top of the large pushing plate 5 near the end of the material box. Since the top of the short strip 14 is inclined, it can be conveniently inserted into the bottom of the material box, and then the purpose of lifting the material box is achieved with the action of the lifting cylinder 29, so as to meet the shooting requirements of the industrial camera 4.

[0060] In addition, the foregoing also mentioned that a lid closing unit is arranged in the frame 2, the top of the lid closing clamping plate 6 extends upward and is arranged on both sides of the material box, the pushing unit and the lid closing unit are coaxially arranged, and the bottom of the lid closing support plate 15 in the lid closing unit is installed on the pushing support plate 11 through a bracket, and is arranged above the pushing clamping cylinder 12. In addition, to avoid the pushing clamping cylinder 12 in the pushing unit and the lid closing clamping cylinder 16 of the lid closing unit from moving and crossing, the lid closing support plate 15 is arranged higher than the horizontal end of the pushing connecting piece 13, and the lid closing clamping cylinder 16 is installed on the lid closing support plate 15, and the push plates on both sides are perpendicular to the transmission line. The driving belt moves back and forth in the conveying direction, and the closing cover connecting piece 17 is arranged in an L shape. The end face of the pushing connecting piece 13 of which the horizontal end passes through the large push plate 5 is installed with a closing cover splint 6. The closing cover splint 6 is arranged vertically, and the top passes through the avoidance groove 8. The top of the closing cover splint 6 is pasted with a rubber strip 18 at the end close to the material box, and the end away from the material box is bent and buckled on the cover plate 7; in the initial state, the closing cover splint 6 in the closing unit is arranged on the outside of the large push plate 5. During the closing process, the large push plate 5 realizes the preliminary closing effect of the upper cover structure and the material box on the basis of the lifting cylinder 29 moving downward and the closing cover clamping cylinder 16 moving inward.

[0061] It should be specifically explained that, in the present embodiment, in order to achieve the purpose of non-interference between the closing splint 6 and the large push plate 5 during movement, and to achieve the effect of mutual nesting between the closing splint 6 and the large push plate 5 during movement, a push plate notch 19 is provided on the large push plate 5, which passes through the two intermediate ends of the closing splint 6, and the short strip 14 is adhered to the top of the board on both sides of the push plate notch 19; and three intermittent splint notches 20 are provided on the closing splint 6 corresponding to the two push plate notches 19, wherein a connecting structure 21 is formed between two adjacent splint notches 20, and a pair of the connecting structures 21 are arranged up and down, so that cooperation with the push plate notch 19 of the large push plate 5 can be achieved during movement without collision, and the rubber strip 18 is installed on the upper connecting structure 21, and because the closing unit needs to play a box pressing effect, the length of the rubber strip 18 should be greater than the length of the corresponding connecting structure 21.

[0062] On this basis, in order to achieve the further closing effect of the box body after the preliminary closing by the box pressing unit and provide guarantee for the subsequent processes, the box pressing unit adopts the box pressing cylinder 24 to press the upper cover structure, wherein the support frame 23 is installed on the frame 2, and the top forms a support plate 25 for installing the box pressing cylinder 24, and the side close to the lower conveyor belt 1 forms a space for pressing the material box, and a pair of parallel connecting plates 26 and pressing plates 27 are installed in the space for pressing the material box. The connecting plate 26 is horizontally arranged in the space for pressing the material box, and the top is connected to the cylinder shaft of the box pressing cylinder 24, and the pressing plate 27 is arranged parallel to the bottom of the connecting plate 26, and is directly connected to the connecting plate 26 through the guide rod 28. The pressing plate 27 is driven by the box pressing cylinder 24 through the connecting plate 26 to press the upper cover structure as a whole toward the material box below.

[0063] Preferably, the guide rod 28 is provided with a spring 22 on its outer sleeve to avoid damage to the upper cover structure and the material box due to pressure concentration; in addition, the conveyor belt 1 in the material pushing unit and the cover closing unit and the conveyor belt in the box pressing unit (the conveyor belt is not shown in the figure) are independently controlled by their own motors and complete various steps independently without interfering with each other, but are located on the same production line with a high degree of integration.

[0064] In addition, a sensor 9 is installed on one side of the cover plate 7 close to the feeding end, and a sensor reflector 10 is installed on the top of the cover plate 7 opposite the industrial camera 4. As the material box is transmitted, the progress is fed back in real time through the sensor 9 on different paths, and the start of the next process can also be fed back, effectively avoiding mistakes and downtime.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A device for visually identifying side label characters and abnormal pasting, characterized in that: include: A conveyor belt (1), wherein the conveyor belt (1) is mounted on a frame (2), one side of the conveyor belt (1) being a material feeding end and the other side being a material discharging end, and a material box to be detected is arranged on the conveyor belt (1) and is transported along the moving direction of the conveyor belt (1); A frame (2), a side of the frame (2) close to the feeding end and parallel to the transmission direction is provided with a robot (3) for opening the cover of the material box, and a box pressing unit is provided on the frame (2) along the discharging end of the conveyor belt (1); An industrial camera (4), wherein the industrial camera (4) is arranged on a side surface of the frame (2), and a camera head of the industrial camera (4) is arranged to be inclined toward a direction in which a label is adhered to the side surface of the material box; A material pushing unit, wherein the material pushing unit is arranged in the frame (2), the top of the large push plate (5) extends upward and is arranged on both sides of the material box, clamps the material box and drives the material box to move up and down, corresponding to the camera direction adjustment of the industrial camera (4); A lid closing unit, wherein the lid closing unit is arranged in the frame (2), and the top of the lid closing clamp (6) extends upward and is arranged on both sides of the material box. In an initial state, the lid closing clamp (6) in the lid closing unit is arranged on the outside of the large push plate (5), and when moving, the lid closing clamp (6) and the large push plate (5) are nested with each other.

2. The side label character and pasting abnormality visual recognition device according to claim 1, characterized in that: A cover plate (7) is also installed between the top of the frame (2) and the conveyor belt (1), and the cover plate (7) is arranged on both sides of the material box; The inner side of the cover plate (7) close to one end of the material pushing unit and the cover closing unit is provided with an avoidance groove (8) corresponding to the cover closing clamping plate (6) and the large push plate (5).

3. The side label character and pasting abnormality visual recognition device according to claim 2, characterized in that: A sensor (9) is installed on one side of the cover plate (7) close to the feeding end, and a corresponding sensor reflector (10) is installed on the top of the cover plate (7) opposite to the industrial camera (4).

4. The side label character and pasting abnormality visual recognition device according to claim 3, characterized in that: The pushing unit comprises: A material pushing support plate (11), the material pushing support plate (11) is arranged on the frame (2), the top of the material pushing support plate (11) is arranged horizontally, and a lifting cylinder (29) is arranged at the bottom; A material pushing and clamping cylinder (12), wherein the material pushing and clamping cylinder (12) is mounted on a material pushing support plate (11), and the push plates on both sides move back and forth in a direction perpendicular to the conveying direction of the transmission belt; A material pushing connecting piece (13), wherein the material pushing connecting piece (13) is arranged in an L shape, and a large pushing plate (5) is installed on the end surface of the horizontal end; A large push plate (5) is vertically arranged, with the top passing through the avoidance groove (8), and a short strip (14) is pasted on the top of the large push plate (5) near the end of the material box.

5. The side label character and pasting abnormality visual recognition device according to claim 4, characterized in that: The cover closing unit comprises: A cover support plate (15), the bottom of which is mounted on the material pushing support plate (11) via a bracket and is located above the material pushing clamping cylinder (12); A cover closing clamping cylinder (16), wherein the cover closing clamping cylinder (16) is mounted on the cover closing support plate (15), and the push plates on both sides move back and forth in a direction perpendicular to the conveying direction of the transmission belt; A cover closing connector (17), wherein the cover closing connector (17) is arranged in an L shape, and a cover closing clamp (6) is installed on the end surface of the material pushing connector (13) whose horizontal end passes through the large push plate (5); The closing clamp (6) is vertically arranged, and the top of the closing clamp (6) passes through the avoidance groove (8). The top of the closing clamp (6) is pasted with a rubber strip (18) at one end close to the material box, and the end away from the material box is bent and buckled on the cover plate (7).

6. The side label character and pasting abnormality visual recognition device according to claim 5, characterized in that: The large push plate (5) is provided with a push plate notch (19) which passes through the two intermediate ends of the cover clamping plate (6); The closing clamping plate (6) is provided with three intermittently arranged clamping plate notches (20) corresponding to the two push plate notches (19), wherein a connecting structure (21) is formed between two adjacent clamping plate notches (20), and a pair of the connecting structures (21) are arranged up and down; The rubber strip (18) is installed on the connecting structure (21) located above.

7. The side label character and pasting abnormality visual recognition device according to claim 6, characterized in that: The box pressing unit comprises: A support frame (23), the support frame (23) is mounted on the frame (2), the top of the support frame (23) forms a support plate (25) for mounting a box pressing cylinder (24), and a space for pressing a material box is formed on the side close to the conveyor belt (1) below; A connecting plate (26), the connecting plate (26) being horizontally arranged in the space of the material box pressing box, and the top of the connecting plate (26) being connected to the cylinder shaft of the box pressing cylinder (24); A pressure plate (27) is arranged parallel to the bottom of the connecting plate (26) and is directly connected to the connecting plate (26) via a guide rod (28). A spring (22) is provided on the outer sleeve of the guide rod (28).

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