Automatic egg box packaging processing production line

Abstract

The application discloses an egg box automatic packaging processing production line and belongs to the technical field of packaging. The production line comprises a blanking mechanism, a conveying mechanism, a glue spraying mechanism, a label laying mechanism, a pressing mechanism, a stacking mechanism and a control terminal. The blanking mechanism is used for placing the egg box on the conveying mechanism. The glue spraying mechanism is used for uniformly spraying glue on the surface of the egg box. The pressing mechanism is used for attaching the label to the surface of the egg box. The stacking mechanism is used for stacking the egg box with the label attached. The conveying mechanism comprises a first conveying assembly, the first conveying assembly comprises a first conveying belt, a limiting piece and an adjusting assembly, the label laying mechanism comprises a label discharging assembly, a speed adjusting assembly and a recycling assembly, the label discharging assembly is used for discharging the label according to a preset program, the speed adjusting assembly is used for adjusting the discharging speed of the label, and the recycling assembly is used for recycling the label. The adjusting assembly, the speed adjusting assembly and the recycling assembly are in communication connection with the control terminal. The application realizes accurate alignment of the label and the egg box, and improves the label attaching efficiency and quality of the egg box.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and in particular to an automatic egg carton packaging production line. Background Technology

[0002] Egg product packaging and processing production lines are systems that provide automated packaging solutions for egg products (such as chicken eggs, duck eggs, etc.). The automation of the packaging and processing production line allows companies to process large quantities of products in a short time, reduce labor costs, and improve production efficiency. Modern egg product packaging and processing production lines can also be equipped with high-tech labeling equipment, so that each egg can be labeled with accurate and compliant labels, which not only improves the production rate but also strengthens the ability to track and manage products.

[0003] Existing packaging labeling devices, such as Chinese application No. 201610119142.9: Labeling Machine and Labeling Method, include a frame, a label supply mechanism, a product tape supply mechanism, a bonding platform, and a label suction mechanism. The label suction mechanism and the bonding platform are directly opposite each other and are located above and below the middle section of the product tape's travel path, respectively. The label suction mechanism includes a label suction plate and a lifting drive. The label supply mechanism includes a feeding assembly, a peeling plate assembly, and a receiving assembly. The peeling plate assembly includes a peeling plate and a horizontal displacement drive. The peeling plate has a peeling end near the label suction mechanism, located between the lower surface of the label suction plate and the upper surface of the product tape. Driven by the lifting drive, the label suction plate moves downward to suction and peel the label from the label tape at the peeling end. After the peeling plate retracts, it further descends to bond the label to the product tape.

[0004] The existing technology has the following defects: In the above-mentioned labeling machine, there is a situation where the label suction plate and the product material tape cannot be aligned. If the label suction plate fails to align with the product material tape during the label peeling and application process, the label may be offset, resulting in a misalignment between the actual position of the label and the product. Due to the inaccurate label application, additional manual intervention or secondary processing may be required, which will prolong the production cycle and reduce the overall efficiency. Misalignment may cause the label to be unable to be correctly applied to the product, making it difficult to reuse and causing unnecessary material waste. Therefore, there is room for improvement. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an automatic egg carton packaging production line to solve the technical problem that existing packaging labeling machines may have errors in the position of the label and the product, resulting in the label not being correctly attached to the product.

[0006] This invention is achieved through the following technical solution:

[0007] An automated egg carton packaging production line includes a feeding mechanism, a conveying mechanism, a glue spraying mechanism, a labeling mechanism, a pressing mechanism, a stacking mechanism, and a control terminal. The feeding mechanism picks up egg cartons and places them on the conveying mechanism. The conveying mechanism sequentially transports the egg cartons to the glue spraying mechanism, the labeling mechanism, the pressing mechanism, and the stacking mechanism. The glue spraying mechanism evenly sprays glue onto the surface of the egg cartons. The pressing mechanism affixes labels to the surface of the egg cartons. The stacking mechanism stacks the labeled egg cartons. The conveying mechanism includes... The first conveying assembly includes a first conveyor belt, a limiting member, and an adjusting component. The limiting member is slidably disposed on the first conveyor belt, and the egg box is fastened to the limiting member. The adjusting component is used to adjust the position and direction of the egg box. The labeling mechanism includes a label dispensing component, a speed regulating component, and a recycling component. The label dispensing component is used to push out the label according to a preset program. The speed regulating component is used to adjust the label dispensing speed. The recycling component is used to recycle unqualified labels. The adjusting component, the speed regulating component, and the recycling component are communicatively connected to a control terminal.

[0008] Preferably, the label-laying mechanism further includes a positioning component, which is disposed between the label-dispensing component and the speed-regulating component. The positioning component includes a first cylinder and a conveyor belt. The first cylinder is used to drive the conveyor belt to move in the vertical direction, and the conveyor belt transfers the label from the label-dispensing component to the speed-regulating component.

[0009] Preferably, the recycling component is disposed between the dispensing component and the speed regulating component. The recycling component includes a second cylinder and a recycling trough. The second cylinder is used to drive the recycling trough to move in the vertical direction. The recycling trough is used to transport the tags on the speed regulating component back into the dispensing component.

[0010] Preferably, the conveying mechanism further includes a second conveying component, which includes a second conveyor belt and limiting blocks. The limiting blocks are evenly distributed on the second conveyor belt. The unloading mechanism places the egg carton between two adjacent sets of limiting blocks. The second conveyor belt is used to sequentially convey the egg carton to the glue spraying mechanism, the labeling mechanism, the pressing mechanism, and the stacking mechanism. The first conveyor belt sequentially transfers the egg carton from the glue spraying mechanism, the labeling mechanism, and the pressing mechanism to the stacking mechanism.

[0011] Preferably, the speed regulating component includes a frame, a first mounting block, a second mounting block, a first roller, a second roller, a spring, and a displacement detector. A vertical groove is provided on the frame. The first mounting block is fixed to the bottom of the groove, and the second mounting block is slidably mounted within the groove. The second mounting block is positioned on top of the first mounting block. The spring is positioned between the inner top surface of the groove and the top surface of the second mounting block. The displacement detector is positioned on the top surface of the second mounting block. The first roller is rotatably mounted on the first mounting block, and the second roller is rotatably mounted on the second mounting block. A label is pushed out from between the first roller and the second roller. Both the first roller and the second roller are driven by independent drive mechanisms.

[0012] Preferably, the adjusting component includes a gear, which is rotatably mounted on the limiting member. A rack is provided on the first conveyor belt, and the gear meshes with the rack. The gear is driven to rotate by a driving mechanism. The label dispensing component pushes a complete label to the positioning component, which is recorded as the first working condition. The label dispensing component pushes an incomplete label, which is recorded as the second working condition. When the label dispensing component is in the first working condition, the limiting member is located at the initial position of the first conveyor belt. When the label dispensing component is in the second working condition, the driving mechanism drives the limiting member to move on the first conveyor belt, so that the limiting member and the label dispensing component remain stationary.

[0013] Preferably, the third working condition is when the dispensing component pushes two complete labels to the positioning component. When the dispensing component is in the third working condition, the control terminal adjusts the rotation speed of the drive mechanism of the first roller and the second roller, as well as the second cylinder, so that the first roller and the second roller rotate in opposite directions, thereby conveying one label to the egg box and retrieving the other label into the dispensing component.

[0014] Preferably, when the movement time of the limiting member on the first conveyor belt is less than a preset time, the limiting member continues to move on the first conveyor belt; when the movement time of the limiting member on the first conveyor belt is equal to the preset time, the limiting member moves in the opposite direction to the initial station and issues a labeling abnormality alarm.

[0015] Preferably, the adjustment assembly further includes a rotating plate, a third cylinder, and an adjustment plate. The rotating plate is rotatably mounted on the limiting member, the third cylinder is disposed on the rotating plate, and the adjustment plate is disposed at the movable end of the third cylinder. The adjustment plate abuts against the inner surface of the egg carton.

[0016] Preferably, the adjustment plate is provided with a first detection point, a second detection point, a third detection point, and a fourth detection point. Each of the first, second, third, and fourth detection points is equipped with a pressure sensor. The pressure sensor is used to detect the pressure at each point. The actual centerline position of the egg carton is calculated based on the pressure value at each point. The actual centerline position is transmitted to the control terminal. By comparing the actual centerline position with the preset centerline position, the adjustment component is instructed to move so that the actual centerline position coincides with the preset centerline position.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. By adjusting the settings of the adjustment component, the egg carton can be precisely adjusted to the correct position and orientation to facilitate subsequent glue spraying and labeling operations. When the adjustment component detects that the egg carton has not been adjusted to the correct position, it sends a feedback signal to the control terminal. The control terminal adjusts the working state of the speed control component according to the feedback from the adjustment component, reducing the label output speed to ensure synchronization between the egg carton and the label. The speed control component can dynamically adjust the label output speed according to the real-time status of the production line. When the adjustment component fails to adjust the egg carton to the correct position, the speed control component will reduce the label output speed according to the instructions of the control terminal to synchronize with the progress of the egg carton adjustment. If the position adjustment time of the egg carton is too long, the adjustment component will temporarily enter a delay waiting state, and the speed control component will also slow down the label output speed to prevent the label from being pushed out before the egg carton is in place. The control terminal will monitor the status of the label output component and decide whether to delay or start the recycling component based on its feedback to maintain the dynamic stability of the entire production line, achieve precise alignment between the label and the egg carton, and improve the labeling efficiency and quality of the egg carton.

[0019] 2. By adjusting the speed control component, when the label dispensing component pushes out two labels, the gap between the first and second rollers increases as the label paper is pushed out. The displacement detector monitors the displacement of the second mounting block in real time and feeds the data back to the control terminal. The control terminal can instantly adjust the positions of the positioning component and the recycling component so that the recycling port of the recycling component corresponds to the position of the defective label on the speed control component. The control terminal adjusts the rotation speed of the drive mechanism of the first and second rollers so that one set of labels can be smoothly recycled into the label dispensing component, reducing the generation of defective products and protecting the effective operation of the production line. The speed control component can quickly recycle defective labels and prevent them from being affixed to the products. By effectively managing the utilization rate of labels and reducing the number of misaligned labels, the entire production system can reduce material waste and lower the overall production cost.

[0020] 3. The actual centerline position of the egg carton is calculated based on the pressure values ​​at each point. This position is then transmitted to the control terminal. By comparing the actual centerline position with the preset centerline position, the control terminal instructs the adjustment components to move, ensuring that the actual centerline coincides with the preset position. Through precise calculation and correction of the egg carton's centerline position, the system ensures that the label is accurately positioned on the egg carton during the labeling process. This system can respond to changes in the egg carton's position in real time, reducing the defect rate caused by inaccurate labeling, lowering scrap costs, and improving resource utilization, thereby reducing overall production costs.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the background art, the accompanying drawings used in the embodiments of the present invention or the background art will be described below.

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions disclosed in this invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of the packaging and processing production line of the present invention;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0027] Figure 4 A partial schematic diagram of the conveyor mechanism in the packaging and processing production line of the invention;

[0028] Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0029] Legend: 1. Feeding mechanism; 2. Conveying mechanism; 21. First conveying assembly; 211. First conveyor belt; 212. Limiting component; 213. Adjusting assembly; 2131. Rotating plate; 2132. Third cylinder; 2133. Adjusting plate; 22. Second conveying assembly; 221. Second conveyor belt; 222. Limiting block; 3. Glue spraying mechanism; 4. Labeling mechanism; 41. Label dispensing assembly; 42. Speed ​​regulating assembly; 421. Frame; 422. First mounting block; 4 23. Second mounting block; 424. First roller; 425. Second roller; 426. Spring; 427. Displacement detector; 43. Recycling assembly; 431. Second cylinder; 432. Recycling trough; 44. Positioning assembly; 441. First cylinder; 442. Conveyor belt; 5. Pressing mechanism; 6. Stacking mechanism; 7. Control terminal; 8. Egg box; 9. First detection point; 10. Second detection point; 11. Third detection point; 12. Fourth detection point. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0037] Please see Figures 1-5 An automated egg carton packaging production line includes a feeding mechanism 1, a conveying mechanism 2, a glue spraying mechanism 3, a labeling mechanism 4, a pressing mechanism 5, a stacking mechanism 6, and a control terminal 7. The feeding mechanism 1 is used to pick up egg cartons 8 and place them on the conveying structure. The conveying mechanism 2 is used to sequentially convey the egg cartons 8 to the glue spraying mechanism 3, the labeling mechanism 4, the pressing mechanism 5, and the stacking mechanism 6. The glue spraying mechanism 3 is used to evenly spray glue onto the surface of the egg cartons 8. The pressing mechanism 5 is used to affix labels to the surface of the egg cartons 8. The stacking mechanism 6 is used to stack the labeled egg cartons 8. The conveying mechanism 2 includes a first conveying component 21. The first conveying component 21 includes a first conveyor belt 211, a limiting member 212, and an adjusting component 213. The limiting member 212 is slidably disposed on the first conveyor belt 211, and the egg box 8 is fastened to the limiting member 212. The adjusting component 213 is used to adjust the position and direction of the egg box 8. The labeling mechanism 4 includes a label dispensing component 41, a speed regulating component 42, and a recycling component 43. The label dispensing component 41 is used to push out the label according to a preset program. The speed regulating component 42 is used to adjust the label dispensing speed. The recycling component 43 is used to recycle unqualified labels. The adjusting component 213, the speed regulating component 42, and the recycling component 43 are communicatively connected to the control terminal 7.

[0038] The main function of the feeding mechanism 1 is to grab egg cartons 8 from the raw material pile and accurately place them on the conveying structure, achieving automatic grabbing and placement, reducing manual intervention, improving discharge efficiency, and ensuring accurate placement of egg cartons 8, laying the foundation for subsequent processes. The feeding mechanism 1 includes two feeding troughs and a vacuum suction device. Workers manually place the egg cartons into the feeding troughs, which ensure the correct placement of the egg cartons. The vacuum suction device includes a pump, valves, filters, pipes, and suction cups. It is used to process the egg cartons on the feeding troughs and suction them onto the conveying mechanism 2. The vacuum suction cups can suction 6-18 egg cartons at a time, with a maximum discharge rate of 90 egg cartons per minute. The conveying mechanism 2 is responsible for sequentially transporting the egg cartons 8 to various workstations (sprayers). The process involves several steps: gluing, labeling, pressing, and stacking. The first conveying assembly 21 (including a conveyor belt, limiting components 212, and adjusting components 213) continuously conveys the egg boxes 8, ensuring smooth production. The limiting components 212 ensure the egg boxes 8 remain in a fixed position on the conveyor belt, while the adjusting components 213 adjust the direction of the egg boxes 8 for subsequent operations. The gluing mechanism 3 evenly sprays glue onto the surface of the egg boxes 8, ensuring uniform application and improving the adhesion quality between the labels and the egg boxes 8. It can adjust the amount of glue sprayed to meet the needs of different batches of products. The gluing mechanism 3 sprays glue onto three sides of the egg boxes on the conveyor belt according to the parameters set on the control terminal 7. The labeling mechanism 4 accurately attaches the labels to the egg boxes 8. Its core components include a label dispensing component 41, a speed control component 42, and a recycling component 43. Workers place labels into the label placement slot of the label dispensing component 41. The label dispensing component 41 is designed to ensure that labels are ejected according to a preset program, guaranteeing that each egg carton 8 has the correct label. The speed control component 42 allows the production line to dynamically adjust the label dispensing speed according to production efficiency requirements to adapt to the production rhythm. Compared to traditional labeling machines, this invention avoids positional errors between labels and products, significantly improving labeling efficiency and quality. The recycling component 43 can automatically recycle defective labels, reducing waste and improving production efficiency. Existing labeling machines often require manual intervention when handling defective labels, while this invention achieves automated processing, reducing labor costs and improving production efficiency. Compared to traditional production lines, this invention maintains high-efficiency production while reducing downtime and material waste, thus improving overall production efficiency.

[0039] The pressing mechanism 5 is used to adhere the label to the surface of the egg carton 8. After pressing and positioning the front plane of the label, the label is folded down to adhere the two sides of the label to the two boxes of the egg carton, ensuring a tight fit and preventing the label from falling off or shifting, thereby improving the overall appearance and quality of the packaging. The pressure can be adjusted according to the different materials and weights of the egg carton 8 to ensure the best pressing effect. Existing labeling machines often can only perform labeling operations on a single plane, while this invention provides a more comprehensive and flexible labeling solution. The stacking mechanism 6 stacks the labeled egg carton 8 in a reasonable manner. By stacking, the use of storage space is optimized, making subsequent transportation and storage more efficient. The stacked egg carton 8 is easy to handle mechanically or manually, improving work efficiency. The stacking mechanism 6 includes cam drive rods and blades. There are four sets of cam drive rods, and the blades are set on the cam drive rods. Each cam... The drive rod is equipped with three sets of blades that stack labeled egg cartons on the conveyor belt. A counter is also installed on the stacking mechanism 6 to record the number of labeled egg cartons, facilitating real-time monitoring of the stack quantity and status. The control terminal 7 is responsible for communication, monitoring, and coordination between the various components, enabling the entire production line to operate automatically. This egg carton 8 automatic packaging production line has multiple functional modules, each working collaboratively to achieve an efficient and automated egg carton 8 packaging process. A central control terminal 7 is used to complete the automatic unloading, stacking, and monitoring and management of the entire production process. Through the precise control of the control terminal 7, collaborative work between the various components is achieved, ensuring the stability and reliability of the production line. Compared to the decentralized control methods in traditional production lines, this invention achieves more efficient and reliable production management through an integrated central control system.

[0040] Adjustment component 213 is responsible for precisely adjusting egg carton 8 to the correct position and orientation to facilitate subsequent glue spraying and labeling operations. When adjustment component 213 detects that egg carton 8 has not been adjusted to the correct position, it sends a feedback signal to control terminal 7. Control terminal 7 adjusts the working state of speed control component 42 based on the feedback from adjustment component 213, reducing the label output speed to ensure synchronization between egg carton 8 and labels. Speed ​​control component 42 can dynamically adjust the label output speed according to the real-time status of the production line. When adjustment component 213 fails to adjust egg carton 8 to the correct position, speed control component 42 will reduce the label output speed according to the instructions of control terminal 7 to synchronize with the adjustment progress of egg carton 8. If the adjustment time of egg carton 8 is too long, adjustment component 213 will temporarily enter a state of emergency. In the delayed waiting state, the speed control component 42 will also slow down the label dispensing speed to prevent the labels from being pushed out before the egg box 8 arrives. The recycling component 43 is responsible for recycling labels that have failed to be dispensed successfully or do not meet the requirements, ensuring the quality of the final product. By automatically recycling unqualified labels, resource waste can be reduced and production efficiency can be improved. When the label dispensing component 41 fails to complete the label dispensing successfully (such as missing, double labels, etc.), the recycling component 43 will automatically recycle the labels according to the instructions of the control terminal 7. Once the recycling component 43 starts to act, it will report the completed status to the control terminal 7, so that the control system can adjust the next label dispensing operation. The control terminal 7 receives signals from the adjustment component 213, the speed control component 42 and the recycling component 43 and makes a comprehensive judgment. For example, if the adjustment component 213 indicates that the egg box 8 is not in place, the control terminal 7 instructs the speed adjustment component 42 to reduce the label dispensing speed. During the label dispensing state, the control terminal 7 will monitor the status of the label dispensing component 41 and decide whether to delay or start the recycling component 43 based on its feedback, so as to maintain the dynamic stability of the entire production line, achieve precise alignment between the label and the egg box 8, and improve the labeling efficiency and quality of the egg box 8.

[0041] To provide a buffer between the label dispensing component 41 and the speed control component 42, and to reduce the impact of labeling errors on the production line, in one embodiment, the labeling mechanism 4 further includes a positioning component 44. The positioning component 44 is disposed between the label dispensing component 41 and the speed control component 42. The positioning component 44 includes a first cylinder 441 and a conveyor belt 442. The first cylinder 441 drives the conveyor belt 442 to move vertically, transferring the label from the label dispensing component 41 to the speed control component 42. The positioning component 44 ensures the accurate position of the label between the label dispensing component 41 and the speed control component 42, preventing label misalignment, overlap, or blanking. Vertical movement saves horizontal space, making the overall production line design more compact and adaptable to space-constrained environments. The positioning component 44 plays a crucial buffering and mitigating role during the label transfer process from the label dispensing component 41 to the speed control component 42. It can adjust the relative position of the label and the egg box 8 to support subsequent speed adjustments and avoid the accumulation and confusion caused by the label being too early or too late. Without the positioning component 44, the label may fall directly from the label dispensing component 41 into the speed regulating component 42, which can easily lead to label misalignment or jamming. In standardized operation, the positioning component 44 can effectively reduce misalignment and paper jams caused by improper operation, thereby reducing the probability of failure in the production process. The presence of the positioning component 44 allows the system to flexibly adjust the label dispensing process. A buffer is provided between the label dispensing component 41 and the speed control component 42, enabling efficient label control without frequent shutdowns for adjustments. When the vision sensor detects a labeling error on the box, the system can immediately activate the positioning component 44, causing a new label to be quickly ejected from the label dispensing component 41. By rapidly transferring the new label to the speed control component 42, the egg box 8 can be relabeled. This rapid response significantly reduces the impact of errors on the production line. Quick label replacement reduces the product defect rate caused by incorrect labeling, minimizes production line downtime, and maximizes production efficiency while minimizing unnecessary waste. Once the labeling error is quickly identified and processed, the production line can continue operating, ensuring that output is not affected by the error, promptly restoring production rhythm, and improving overall capacity.

[0042] In order to quickly retrieve labels with abnormal discharge and prevent them from continuing to affect the operation of the production line, in one embodiment, a recycling component 43 is disposed between the label dispensing component 41 and the speed regulating component 42. The recycling component 43 includes a second cylinder 431 and a recycling trough 432. The second cylinder 431 is used to drive the recycling trough 432 to move in the vertical direction, and the recycling trough 432 is used to transport the labels on the speed regulating component 42 back into the label dispensing component 41. The second cylinder 431 drives the vertical movement of the recycling trough 432, ensuring its smooth collection of labels. The recycling trough 432 receives labels that fail to adhere properly from the speed control component 42 and transports them back to the label dispensing component 41 for appropriate processing or reuse. When labels fail to dispense effectively during the conveying process of the speed control component 42 due to malfunctions (such as overlap or paper jams), the recycling component 43 promptly captures and recycles these labels, avoiding unnecessary material waste. The design of the recycling component 43 allows all label problems on the production line to be quickly identified and handled. When the speed control component 42 detects label abnormalities (such as missing or double labels), the recycling trough 432 can quickly retrieve the labels, preventing them from further affecting the operation of the production line. Because the labels can be quickly recycled and processed, the downtime of the production line is significantly reduced, eliminating the need for tedious manual cleaning and maintenance. The recycling component 43 effectively prevents incorrect labels from continuing to adhere to the egg carton 8. Once a label problem is detected, feedback can be provided quickly to ensure that product quality is not affected.

[0043] To improve the fault tolerance of the entire feeding process and ensure that the egg carton 8 maintains the correct position during the glue spraying, labeling, and pressing processes, in one embodiment, the conveying mechanism 2 further includes a second conveying component 22. The second conveying component 22 includes a second conveyor belt 221 and limiting blocks 222. The limiting blocks 222 are evenly distributed on the second conveyor belt 221. The feeding mechanism 1 places the egg carton 8 between two adjacent sets of limiting blocks 222. The second conveyor belt 221 is used to sequentially convey the egg carton 8 to the glue spraying mechanism 3, the labeling mechanism 4, the pressing mechanism 5, and the stacking mechanism 6. The first conveyor belt 211 sequentially transfers the egg carton 8 from the glue spraying mechanism 3, the labeling mechanism, and the pressing mechanism 5 to the stacking mechanism 6. The egg carton 8 is placed between two adjacent sets of limiting blocks 222 to ensure that it is accurately positioned during the feeding process, reducing errors caused by improper feeding. The limiting blocks 222 provide a physical position reference for feeding, effectively reducing the possibility of misalignment. The design of the limiting blocks 222 improves the error tolerance of the entire feeding process. Even if there is a slight deviation during feeding (such as a slight shift in the placement of the egg carton 8), the presence of the limiting blocks 222 can effectively adjust it back to the correct position, reducing the impact of human operation on production efficiency. The design of the second conveyor belt 221 partially overlapping with the limiting blocks 222 ensures that the egg carton 8 maintains the correct position during the glue spraying, labeling, and pressing processes, preventing slippage or misalignment and improving the overall stability of production. When the labeling mechanism 4 applies labels, the egg carton 8 is positioned accurately by the limitation of the limiting blocks 222, thereby effectively improving the label application accuracy. This precise placement is crucial for the final product's appearance and yield rate, especially in mass production where even small errors can be magnified. Because the egg carton 8 is effectively positioned during transport, reliance on manual labor is reduced. For example, operators do not need to frequently intervene to adjust the position, which not only improves work efficiency but also reduces human error rates. Stable transport and precise positioning design mean less downtime due to label misalignment or improper material feeding, thus improving overall production efficiency.

[0044] To effectively prevent label misapplication and improve labeling quality on the production line, in one embodiment, the speed control component 42 includes a frame 421, a first mounting block 422, a second mounting block 423, a first roller 424, a second roller 425, a spring 426, and a displacement detector 427. A vertical groove is provided on the frame 421. The first mounting block 422 is fixed to the bottom of the groove, and the second mounting block 423 is slidably mounted within the groove, positioned at the top of the first mounting block 422. The spring 426 is positioned between the inner top surface of the groove and the top surface of the second mounting block 423. The displacement detector 427 is positioned on the top surface of the second mounting block 423. The first roller 424 is rotatably mounted on the first mounting block 422, and the second roller 425 is rotatably mounted on the second mounting block 423. Labels are pushed out from between the first roller 424 and the second roller 425. Both the first roller 424 and the second roller 425 are driven by independent drive mechanisms. When the label dispensing component 41 dispenses two labels, the gap between the first roller 424 and the second roller 425 increases as the label paper is dispensed. This change is caused by the compression of the spring 426, which also alters the height of the second mounting block 423. The displacement detector 427 monitors the displacement of the second mounting block 423 in real time and feeds the data back to the control terminal 7. This provides important information about the cause of the gap change, indicating possible abnormalities or situations requiring adjustment in the components. Based on the information provided by the displacement detector 427, the control terminal 7 can instantly adjust the positions of the positioning component 44 and the recycling component 43, aligning the recycling port of the recycling component 43 with the position of the defective label on the speed regulating component 42. The control terminal 7 adjusts the rotation speed of the drive mechanisms of the first roller 424 and the second roller 425, ensuring that one set of labels can be smoothly recycled into the label dispensing component 41. Through real-time monitoring and feedback, the speed regulating component 42 can automatically adapt to changes in label dispensing. By ensuring the accuracy of the label's position during dispensing and recycling, the speed regulating component 42 can effectively prevent mis-labeling, thus improving the overall labeling quality of the production line. Ensuring label alignment and correct positioning is crucial, especially in high-speed production environments. The system can respond promptly to potential problems using real-time data provided by the displacement detector 427. It can quickly take action to reduce the production of defective products and protect the efficient operation of the production line when too many labels are issued or of poor quality. The speed control component 42 can quickly retrieve defective labels to prevent them from being affixed to products. By effectively managing label utilization and reducing the number of misaligned labels, the entire production system can reduce material waste and lower overall production costs.

[0045] To ensure the continuity and efficiency of the production process, in one embodiment, the adjusting component 213 is configured to quickly respond to a delayed waiting state when a defective label appears, the recycling component 43 promptly recycles the label, and the queuing component 44 quickly replaces the label. Based on this, the adjusting component 213 includes a gear, which is rotatably mounted on the limiting member 212. A rack is provided on the first conveyor belt 211, and the gear meshes with the rack. The gear is driven to rotate by a drive mechanism. The label dispensing component 41 pushes a complete label to the queuing component 44, which is recorded as the first working condition. The label dispensing component 41 pushes out an incomplete label, which is recorded as the second working condition. When the label dispensing component 41 is in the first working condition, the limiting member 212 is located at the initial position of the first conveyor belt 211. When the label dispensing component 41 is in the second working condition, the drive mechanism drives the limiting member 212 to move on the first conveyor belt 211, keeping the limiting member 212 and the label dispensing component 41 stationary. A gear is mounted on a limiting member 212 and meshes with a rack on the first conveyor belt 211. The rotation of the gear is controlled by a drive mechanism, thereby adjusting the position of the limiting member 212. When the label dispensing component 41 successfully dispenses a complete label, the limiting member 212 remains in its initial position, and the entire label flow and labeling process proceeds normally. When the label dispensing component 41 dispenses an incomplete label, the drive mechanism adjusts the gear position, causing the limiting member 212 to enter a delayed waiting state, facilitating the recovery of the defective label and the rapid acquisition of a new label. In the second operating condition, the system can detect the dispensing of incomplete labels in real time. By moving the limiting member 212 to the delayed waiting state, the system can effectively prevent defective labels from continuing to be transmitted downstream, avoiding these labels from affecting subsequent production processes. This immediate response mechanism reflects the system's emphasis on quality control and helps maintain the standard of the final product. The design of the adjusting component 213 enables the entire system to automate processing, improving the efficiency of label conveying and labeling. When the label dispensing component 41 dispenses a complete label, the stationary state of the limiting component 212 allows for continuous and smooth processing of the entire batch of labels. The fully automated adjustment mechanism reduces reliance on operators and lowers the possibility of human error. In the production line, since some labels may be accidentally dispensed, traditional manual inspection or intervention may cause delays and production bottlenecks. However, the weak control mechanism of the adjustment component 213 ensures that the system can self-adjust, improving the overall operational safety and reliability. Once a non-conforming label is detected, the system quickly retrieves it and extracts a new label from the locating component 44 for replacement. The smooth execution of this process ensures a perfect fit between the product box and the label, avoiding additional misalignment and adjustments caused by label issues, and effectively reducing the production of defective products.

[0046] To ensure accurate label delivery and precise attachment to the product without misalignment, while minimizing material waste, in one embodiment, the label dispensing component 41 pushes two complete labels to the positioning component 44, designated as the third working condition. When the label dispensing component 41 is in the third working condition, the control terminal 7 adjusts the rotational speeds of the drive mechanisms of the first roller 424 and the second roller 425, as well as the second cylinder 431, causing the first roller 424 and the second roller 425 to rotate in opposite directions. This results in one label being delivered to the egg box 8, while the other label is retrieved back into the label dispensing component 41. The third working condition indicates that the label dispensing component 41 has successfully pushed two complete labels to the positioning component 44. In this state, the system needs to coordinate the work of multiple devices to achieve efficient labeling. When in the third working condition, the control terminal 7 is responsible for adjusting the rotation speed of the drive mechanisms of the first roller 424 and the second roller 425, as well as the action of the second cylinder 431. By rotating in reverse, one label is conveyed to the egg box 8, while the other label is recycled into the label dispensing component 41. Processing two labels simultaneously reduces the label dispensing process within the production cycle, which helps to improve the overall output of the production line. This measure effectively supports high-speed production requirements and is particularly suitable for large-scale production. By controlling the reverse rotation of the first roller 424 and the second roller 425, accurate label delivery is ensured, allowing it to be precisely attached to the product (such as the egg box 8) without misalignment. The reverse rotation control allows the system to flexibly respond to label advancement and recycling, and switch operating states in a timely manner. This dynamic management reduces the risk of unqualified labels affecting subsequent processing stages, which helps to improve the stability of the entire production process. Conveying one label to the egg box 8 while recycling the other label into the label dispensing component 41 helps to maximize the utilization of all label resources. This optimized labeling strategy reduces material waste, lowers production costs, and improves label utilization. By optimizing the labeling process and increasing automation, labor costs are reduced, losses of defective products are decreased, and production efficiency is improved, thereby lowering overall production costs.

[0047] To ensure that each work step is completed within the specified time and to avoid production rhythm disruptions caused by delays, in one embodiment, when the movement time of the limiting member 212 on the first conveyor belt 211 is less than a preset time, the limiting member 212 continues to move on the first conveyor belt 211. When the movement time of the limiting member 212 on the first conveyor belt 211 equals the preset time, the limiting member 212 moves in reverse to the initial station and issues a labeling abnormality alarm. By setting the movement time of the limiting member 212 on the first conveyor belt 211, the system can ensure that each work step is completed within the specified time and avoid production rhythm disruptions caused by delays. When the movement time of the limiting member 212 reaches the preset value, the system will not only take measures to move in reverse but also issue an alarm. This monitoring and feedback mechanism ensures real-time monitoring of the production line, enabling timely detection and handling of abnormal situations; the movement time of the limiting member 212 on the first conveyor belt 211 is monitored to ensure that it completes its movement within the specified time. If the preset time is exceeded, the design of reversing back to the initial station effectively avoids affecting the subsequent egg box 8 operation process due to the delay of the limit component 212, reducing the risk of production stoppage. Through timely feedback and adjustment, the system can maintain the efficient operation of the production line. The setting of the limit component 212 continuing to move on the first conveyor belt 211 ensures smooth operation under normal conditions, while timely reversal under abnormal conditions prevents potential production bottlenecks. The design of issuing labeling abnormality alarms provides operators with timely feedback, enabling rapid identification and resolution of problems. This alarm mechanism not only improves the transparency of the production process but also enhances the monitoring capability of equipment status, reducing the possibility of human error.

[0048] To allow the system to adjust the position of the bottom box under different conditions and adapt to egg cartons 8 of various sizes, in one embodiment, the adjustment assembly 213 further includes a rotating plate 2131, a third cylinder 2132, and an adjusting plate 2133. The rotating plate 2131 is rotatably mounted on the limiting member 212, the third cylinder 2132 is disposed on the rotating plate 2131, and the adjusting plate 2133 is disposed at the movable end of the third cylinder 2132, abutting against the inner surface of the egg carton 8. The rotating plate 2131, mounted on the limiting member 212, has the ability to rotate. Its main function is to adjust the position for subsequent operations. The third cylinder 2132, disposed on the rotating plate 2131, is responsible for driving the adjusting plate 2133 to rise, fall, or move. The third cylinder 2132 typically operates using air pressure, enabling rapid and precise displacement. Installed at the movable end of the third cylinder 2132, the adjusting plate 2133 abuts against the inner surface of the egg box 8, adjusting up and down or left and right according to the movement of the third cylinder 2132. When the adjusting assembly 213 is working, the start and stop of the third cylinder 2132 drive the rotation of the rotating plate 2131 and the movement of the adjusting plate 2133, thus achieving dynamic adjustment of the position or posture of the egg box 8. The combination of the rotation of the rotating plate 2131 and the up and down movement of the third cylinder 2132 ensures that the adjusting plate 2133 can be precisely aligned with the inside of the egg box 8, ensuring its adaptability to egg boxes 8 of various shapes and sizes. The tight contact between the adjustment plate 2133 and the inner surface of the egg carton 8 ensures precise positioning of the label during the labeling process. Regardless of the shape of the egg carton 8, the adjustment plate 2133 can be adjusted in a timely manner to improve the accuracy of labeling, reduce label deviation, and thus ensure the consistency of product appearance. Since the egg carton 8 may have different sizes and shapes, the flexibility of the rotating plate 2131 and the third cylinder 2132 allows the system to adjust the position of the adjustment plate 2133 under different conditions to adapt to various specifications of egg carton 8. The rapid adjustment function of the adjustment component 213 reduces downtime during line change or adjustment operations, ensuring the continuity and smoothness of the production line. The system can quickly adapt to production changes and maintain high-efficiency production capacity.

[0049] To accurately calculate and correct the position of the central axis of the egg carton 8, ensuring that the label is accurately positioned on the egg carton 8 during the labeling process, in one embodiment, the adjusting plate 2133 is provided with a first detection point 9, a second detection point 10, a third detection point 11, and a fourth detection point 12. Each of these four detection points is equipped with a pressure sensor. The pressure sensors detect the pressure at each point, calculate the actual central axis position of the egg carton 8 based on the pressure values ​​at each point, and transmit the actual central axis position to the control terminal 7. By comparing the actual central axis position with a preset central axis position, the adjusting component 213 is instructed to move, so that the actual central axis coincides with the preset central axis position. The four detection points are located on the adjusting plate 2133, responsible for pressure detection at different locations. Each detection point is equipped with a pressure sensor to monitor the pressure value at each point in real time. When the egg carton 8 is placed on the adjusting plate 2133, the pressure sensors will sense the pressure applied at different points. By measuring these pressure values, the system can calculate the actual centerline position of egg carton 8, which is then transmitted to control terminal 7. Control terminal 7 presets an ideal centerline position and compares the measured position with this preset position. If the actual centerline does not match the preset position, control terminal 7 sends a command to adjust component 213 to move accordingly, ensuring the actual centerline coincides with the preset position. Through precise calculation and correction of the centerline position of egg carton 8, the system ensures that the label is accurately positioned on the egg carton 8 during labeling. The system can respond to changes in the position of egg carton 8 in real time, especially in high-volume production, allowing for rapid adjustments to ensure accuracy at each labeling stage. During production, material errors (such as slight irregularities in the shape, material, or placement of egg carton 8) may cause deviations between the actual and preset centerline. The system effectively corrects these errors by continuously monitoring pressure values ​​and making real-time adjustments, maintaining the normal operation of the production line. By reducing the defect rate due to inaccurate labeling, scrap costs are lowered, resource utilization is improved, and overall production costs are reduced.

[0050] The pressure values ​​of the pressure sensors at the four corners of the adjustment plate are P1, P2, P3, and P4, respectively. The actual centerline position of the egg carton (X) is... a Y a ),in,

[0051]

[0052] W is the width of the adjustment plate, and L is the length of the adjustment plate;

[0053] X aIn the formula, (P1+P2) represents the sum of the pressures received by the sensors at the two front corners, and (P1+P2+P3+P4) is the sum of the pressures from all the pressure sensors, representing the system's response intensity to the entire egg carton. The result is multiplied by the width W of the adjustment plate to calculate the absolute position of the actual central axis in the width direction; Y a The formula follows a similar logic: by comparing the pressure P1 at the front left corner with the pressure P3 at the rear left corner, and then calculating the ratio of these ratios to the total pressure, the actual position along the length direction can be determined. It is assumed that the pressure value is directly proportional to the actual placement of the egg carton; that is, the more stable the placement, the higher the reading of a particular pressure sensor. By summing the pressure values ​​at different corners, the actual position of the egg carton's central axis relative to the center of the adjustment plate can be derived, enabling feedback and adjustment.

[0054] The control terminal will X a relative to the preset centerline position X p When compared, a deviation occurs:

[0055] ΔX=X p -X a ,

[0056] ΔY=Y p -Y a ;

[0057] Based on the deviation values ​​ΔX and ΔY, the mechanical components' actions are adjusted in a timely manner. The control command can be designed as follows:

[0058] If ΔX > 0, move to the right; if ΔX < 0, move to the left.

[0059] If ΔY > 0, move forward; if ΔY < 0, move backward.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic egg carton packaging production line, characterized in that: The system includes a feeding mechanism, a conveying mechanism, a glue spraying mechanism, a labeling mechanism, a pressing mechanism, a stacking mechanism, and a control terminal. The feeding mechanism is used to pick up egg cartons and place them on the conveying mechanism. The conveying mechanism is used to sequentially transport the egg cartons to the glue spraying mechanism, the labeling mechanism, the pressing mechanism, and the stacking mechanism. The glue spraying mechanism is used to evenly spray glue onto the surface of the egg cartons. The pressing mechanism is used to attach labels to the surface of the egg cartons. The stacking mechanism is used to stack the labeled egg cartons. The conveying mechanism includes a first conveying component, which includes a first conveyor belt, a limiting member, and an adjusting component. The limiting member is slidably disposed on the first conveyor belt, and the egg box is fastened to the limiting member. The adjusting component is used to adjust the position and orientation of the egg box. The label-laying mechanism includes a label-dispensing component, a speed-regulating component, and a recycling component. The label-dispensing component ejects labels according to a preset program. The speed-regulating component adjusts the label dispensing speed. The recycling component collects defective labels. The adjusting component, speed-regulating component, and recycling component are communicatively connected to a control terminal, which is configured as follows: Receives egg box position signal from the adjustment component; The speed control component adjusts the label dispensing speed based on the egg carton position signal; When an abnormality in the tag issuance is detected, the tag recycling component is activated to recycle the tag. The actions of the limiting component, the label dispensing component, and the recycling component are coordinated to achieve precise alignment and adhesion between the egg carton and the label; The conveying mechanism further includes a second conveying component, which includes a second conveyor belt and limiting blocks. The limiting blocks are evenly distributed on the second conveyor belt. The unloading mechanism places the egg carton between two adjacent sets of limiting blocks. The second conveyor belt is used to sequentially convey the egg carton to the glue spraying mechanism, the labeling mechanism, the pressing mechanism, and the stacking mechanism. The first conveyor belt sequentially transfers the egg carton from the glue spraying mechanism, the labeling mechanism, and the pressing mechanism to the stacking mechanism. The speed control component includes a frame, a first mounting block, a second mounting block, a first roller, a second roller, a spring, and a displacement detector. A vertical groove is provided on the frame. The first mounting block is fixed to the bottom of the groove, and the second mounting block is slidably mounted within the groove, positioned on top of the first mounting block. The spring is located between the inner top surface of the groove and the top surface of the second mounting block. The displacement detector is located on the top surface of the second mounting block. The first roller is rotatably mounted on the first mounting block, and the second roller is rotatably mounted on the second mounting block. A label is pushed out from between the first roller and the second roller. Both the first roller and the second roller are driven by independent drive mechanisms.

2. The automatic egg carton packaging production line according to claim 1, characterized in that: The label-laying mechanism further includes a positioning component, which is disposed between the label-dispensing component and the speed-regulating component. The positioning component includes a first cylinder and a conveyor belt. The first cylinder is used to drive the conveyor belt to move in the vertical direction, and the conveyor belt transfers the label from the label-dispensing component to the speed-regulating component.

3. The automatic egg carton packaging production line according to claim 2, characterized in that: The recycling component is disposed between the dispensing component and the speed regulating component. The recycling component includes a second cylinder and a recycling trough. The second cylinder is used to drive the recycling trough to move in the vertical direction. The recycling trough is used to transport the tags on the speed regulating component back into the dispensing component.

4. The automatic egg carton packaging production line according to claim 3, characterized in that: The adjusting component includes a gear, which is rotatably mounted on the limiting member. A rack is provided on the first conveyor belt, and the gear meshes with the rack. The gear is driven to rotate by a driving mechanism. The label dispensing component pushes a complete label to the positioning component, which is recorded as the first working condition. The label dispensing component pushes an incomplete label, which is recorded as the second working condition. When the label dispensing component is in the first working condition, the limiting member is located at the initial position of the first conveyor belt. When the label dispensing component is in the second working condition, the driving mechanism drives the limiting member to move on the first conveyor belt, so that the limiting member and the label dispensing component remain stationary.

5. The automatic egg carton packaging production line according to claim 4, characterized in that: The dispensing component pushes two complete labels to the positioning component, which is called the third working condition. When the dispensing component is in the third working condition, the control terminal adjusts the rotation speed of the drive mechanism of the first roller and the second roller, as well as the second cylinder, so that the first roller and the second roller rotate in opposite directions, thereby conveying one label to the egg box and retrieving the other label into the dispensing component.

6. The automatic egg carton packaging production line according to claim 5, characterized in that: When the movement time of the limiting member on the first conveyor belt is less than a preset time, the limiting member continues to move on the first conveyor belt. When the movement time of the limiting member on the first conveyor belt is equal to the preset time, the limiting member moves in the opposite direction to the initial station and issues a labeling abnormality alarm.

7. The automatic egg carton packaging production line according to claim 6, characterized in that: The adjustment assembly also includes a rotating plate, a third cylinder, and an adjustment plate. The rotating plate is rotatably mounted on the limiting member, the third cylinder is disposed on the rotating plate, and the adjustment plate is disposed at the movable end of the third cylinder. The adjustment plate abuts against the inner surface of the egg carton.

8. The automatic egg carton packaging production line according to claim 7, characterized in that: The adjustment plate is equipped with a first detection point, a second detection point, a third detection point, and a fourth detection point. Each of the first, second, third, and fourth detection points is equipped with a pressure sensor. The pressure sensor is used to detect the pressure at each point. The actual centerline position of the egg carton is calculated based on the pressure value at each point. The actual centerline position is transmitted to the control terminal. By comparing the actual centerline position with the preset centerline position, the adjustment component is instructed to move so that the actual centerline position coincides with the preset centerline position.

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