Full-automatic packaging line processing system

Abstract

The invention provides a full-automatic packaging line processing system which comprises a stacking and strapping machine, a first labeling machine, a weighing machine, a plastic packaging machine, a second labeling machine, a code spraying machine, a conveyor and a control unit for controlling the devices to operate, and the control unit conducts compliance verification on packages according to first identification codes, second identification codes and weight information of the packages; according to the verification result and the data information, the packaging device is correspondingly controlled, and the operation state of the conveyor connected with the material inlet is controlled according to the number of the packages on the detection area of the conveyor at the material inlet, so that the packages on the conveyor are prevented from being stacked; according to the invention, ordered processing and compliance management of parcels and efficient cooperative operation of the device are intelligently and efficiently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular, to a fully automatic packet line processing system. Background Art

[0002] Fully automatic packet line systems are widely used in daily life and industrial manufacturing, such as express logistics or bank note processing centers. For traditional packages, a large amount of manual sorting and labeling are required, resulting in low work efficiency and easy errors.

[0003] Therefore, there is an urgent need for a fully automatic packet production line processing system for real-time and intelligent processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a fully automatic packing system to provide an intelligent and efficient way to achieve the orderly processing of packages, compliance management, and the efficient coordinated operation of devices, and to solve the problems of low automation degree and large workload in the existing packet process.

[0005] The present invention provides a fully automatic packing system, which includes: A plurality of packet devices and a control unit. The plurality of packet devices are arranged on a package conveyor line. The packet device at least includes: A plurality of palletizing and strapping machines, corresponding to a plurality of material inlets one by one. The palletizing and strapping machines are configured to pre-package the materials conveyed out from the material inlets into a package; A plurality of first labelers, corresponding to the plurality of material inlets one by one. The first labelers are configured to paste a first sticker on the first position of the package; wherein, the first sticker displays a first identification code; A weighing machine, configured to weigh the package to obtain the weight information of the package; A second labeler, configured to paste a second sticker on the second position of the package; the second sticker displays a second identification code; A plurality of conveyors, configured to convey packages on the package conveyor line; the conveyor at least includes a segment conveyor and an inlet conveyor at the material inlet. The plurality of segment conveyors are connected to each other, and the inlet conveyor is connected between the material inlet and the segment conveyor; the control unit controls the operating state of the inlet conveyor corresponding to the segment conveyor according to the number of the first packages on the segment conveyor; The control unit is configured to receive the data information of the plurality of packet devices, perform compliance verification on the package according to the first identification code, the second identification code, and the weight information of the package; and perform corresponding control on the packet device according to the verification result and the data information.

[0006] In one embodiment, the packet device further includes a segment wrapping detector and an inlet wrapping detector. The segment wrapping detector corresponds to the segment conveyor one by one and is configured to detect the packets conveyed by the segment conveyor. Each time a packet is detected, a first packet signal is generated. The inlet wrapping detector corresponds to the inlet conveyor one by one and is configured to detect the packets conveyed by the inlet conveyor. Each time a packet is detected, a second packet signal is generated; Based on the first packet signal and the second packet signal, the first packet quantity on the segment conveyor is obtained; wherein, the packet detection position of the segment conveyor, the packet detection position of the previous segment conveyor of the segment conveyor, and the packet detection position of the corresponding inlet conveyor of the segment conveyor enclose a detection area for detecting the packet quantity on the segment conveyor.

[0007] In one embodiment, obtaining the first packet quantity on the segment conveyor according to the first packet signal and the second packet signal includes: Setting the first packet quantity on the segment conveyor to 0; Whenever a second packet signal of the corresponding inlet conveyor of the segment conveyor is counted, the first packet quantity on the segment conveyor is incremented by 1; Whenever a first packet signal of the previous segment conveyor of the segment conveyor is counted, the first packet quantity on the segment conveyor is incremented by 1; Whenever a first packet signal of the segment conveyor is counted, the first packet quantity on the segment conveyor is decremented by 1; When the first packet quantity on the segment conveyor is 0, return to the step of setting the first packet quantity on the segment conveyor to 0.

[0008] In one embodiment, controlling the operating state of the corresponding inlet conveyor of the segment conveyor according to the first packet quantity on the segment conveyor includes: Comparing the first packet quantity on the segment conveyor with a preset first quantity threshold; When the first packet quantity on the segment conveyor is greater than or equal to the first quantity threshold, the control unit controls the inlet conveyor to pause operation.

[0009] In one embodiment, the packet device further includes: A first barcode scanner, arranged at the material inlet, and configured to scan the first identification code on the first sticker; A second barcode scanner, arranged at the entrance of the weighing machine, and configured to scan the first identification code on the first sticker; A third barcode scanner, arranged on the conveyor line downstream of the second labeling machine, is configured to scan the first identification code on the first sticker; A fourth barcode scanner, arranged on the conveyor line downstream of the second labeling machine, is configured to scan the second identification code on the second sticker.

[0010] In one embodiment, according to the first identification code, the second identification code, and the weight information of the package, compliance verification of the package is performed, including: Verifying whether the identity of the package is compliant by comparing the weight information of the package obtained by the weighing machine with the preset weight threshold corresponding to the package; wherein, according to the first identification code scanned and recognized by the second barcode scanner, the preset weight threshold corresponding to the package is obtained; Verifying whether the weight of the package is compliant according to the weight information obtained by the weighing machine; Comparing the first identification code recognized by the third barcode scanner with the second identification code recognized by the fourth barcode scanner, and verifying whether the identity of the package is compliant according to the comparison result; wherein, the second identification code has a unique corresponding relationship with the first identification code; When the weight and identity of the package are compliant, the package is compliant; When at least one of the weight and identity of the package is non-compliant, the package is non-compliant.

[0011] In one embodiment, the sealing device further includes a plurality of computer terminals, which correspond to the material inlets one by one. The computer terminals are connected to the first barcode scanner at the corresponding material inlet, and the computer terminals are configured to send the first identification code obtained by the first barcode scanner to the data memory, and the control unit obtains the first identification code from the data memory and obtains the second identification code according to the first identification code.

[0012] In one embodiment, the computer terminal is connected to the inlet conveyor at the corresponding material inlet, and the computer terminal is configured to perform local control on the inlet conveyor.

[0013] In one embodiment, the computer terminal is connected to the palletizing and strapping machine at the corresponding material inlet, and the computer terminal is configured to perform local control on the palletizing and strapping machine and send the data information of the palletizing and strapping machine to the data memory.

[0014] In one embodiment, the sealing device further includes a package sorter, which is configured to remove the package from the package conveyor line; According to the data information and the verification result, perform corresponding control on the packetizing device, including: When the verification result of the package is non-compliant, determine the target packetizing device according to the position where the package is determined to be non-compliant; wherein, the target packetizing device is the packetizing device located downstream of the position of the non-compliant package; Control the target packetizing device not to operate on the package, control the second labeler to display the reason for non-compliance on the second label, and control the package sorter to remove the package from the package conveyor line.

[0015] In one embodiment, the packetizing device further includes: a plastic sealing machine and / or a coding machine, wherein, The plastic sealing machine is located between the first labeler and the second labeler, and the plastic sealing machine is configured to plastic-seal the package; The coding machine is located downstream of the second labeler, and the coding machine is configured to print anti-counterfeiting numbers on the second label, wherein the anti-counterfeiting numbers are obtained according to the first identification code.

[0016] In one embodiment, the packetizing device further includes a first working package detector and a plastic-sealing regulation baffle arranged at the entrance of the plastic sealing machine; The first working package detector is configured to detect the number of packages conveyed to the plastic sealing machine. Each time a package is detected, a first working package signal is generated, and according to the first working package signal, determine the number of packages currently being processed by the plastic sealing machine; The control unit controls the lifting of the plastic-sealing regulation baffle according to the number of packages currently being processed by the plastic sealing machine.

[0017] In one embodiment, the packetizing device further includes a second working package detector and a weighing regulation baffle arranged at the entrance of the weighing machine; The second working package detector is configured to detect the number of packages conveyed to the weighing machine. Each time a package is detected, a second working package signal is generated, and according to the second working package signal, determine the number of packages currently being processed by the weighing machine; The control unit controls the lifting state of the weighing regulation baffle according to the number of packages currently being processed by the weighing machine.

[0018] In one embodiment, the package conveyor line includes multiple first conveyor lines and one second conveyor line. The conveyors on the first conveyor lines are connected to the conveyors on the second conveyor line. The conveyors on the first conveyor lines are configured to convey the packages from the entrance conveyor to the conveyors on the second conveyor line. The weighing machine and the second labeler are arranged on the second conveyor line; The packet packaging device further includes a shunt package detector and a shunt control baffle disposed at the end of the first conveyor line; The shunt package detector is configured to detect the number of packages conveyed by the conveyor at the end of the first conveyor line to the conveyor on the second conveyor line, and generate a shunt package signal for each detected package; The control unit controls the conveyor at the end of the first conveyor line to alternately convey packages to the conveyor on the second conveyor line according to the shunt package signal, and controls the lifting state of the shunt control baffle.

[0019] In one embodiment, the control unit extracts the display item from the data information according to a preset display item, and controls the second labeling machine to display the display item on the second label, where the display item at least includes the information of the packet packaging device operator, the information of the packet packaging device, the production information of the package, and the compliance verification result.

[0020] Technical effects and advantages of the present invention: In the embodiment of the present invention, multiple packet packaging devices are arranged on the package conveyor line. This layout is beneficial to the collaborative work between the devices. After the palletizing and strapping machine packs the materials into packages, the packages can sequentially pass through the first labeling machine, the weighing machine, and the second labeling machine for corresponding operations, and finally be conveyed by the conveyor, forming an orderly automated process, which improves the overall operation efficiency of the package conveyor line. The control unit controls the operating state of the conveyor according to the number of the first package on the conveyor or the number of packages currently being processed by the packet packaging device. This helps to avoid congestion or accumulation of packages on the conveyor line, ensures the stable operation of the entire system, and further improves production efficiency. The identification code and production information on the label help to accurately identify and manage the packages. The control unit receives the data information of multiple packet packaging devices, performs compliance verification on the packages according to the preset compliance verification items and the data information, and then performs corresponding control on the packet packaging devices. This helps to ensure that the packaging process of the packages meets the relevant requirements, improves the quality and consistency of the packages, and reduces the occurrence of unqualified products. Brief Description of the Drawings

[0021] By describing the embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present invention will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0022] Figure 1 Schematic block diagram of a fully automatic packet packaging line processing system provided by the present invention according to an embodiment of the present invention; Figure 2 Schematic block diagram of the fully automatic packing line processing system provided by the present invention according to another embodiment of the present invention; Figure 3 Composition diagram of the fully automatic packing line processing system provided by the present invention; Figure 4 Overall layout diagram of the fully automatic packing line processing system provided by the present invention; Figure 5 Partial layout diagram of the palletizing and strapping machine of the fully automatic package conveying line provided by the present invention; Figure 6 Partial layout diagram of heat shrink packaging, weighing, on-line labeling, and inkjet coding of the fully automatic package conveying line provided by the present invention; Figure 7 Partial layout diagram of the confluence part of the fully automatic package conveying line provided by the present invention; Explanation of the reference numerals in the drawings: 1. Control unit; 11. Data memory; 21. Palletizing and strapping machine; 22. First labeling machine; 23. Weighing machine; 24. Second labeling machine; 25. Heat shrink packaging machine; 26. Laser inkjet coding machine; 31. Section conveyor; 32. Inlet conveyor; 35. End conveyor; 36. Start conveyor; 37. Roller conveyor; 38. Double-direction chain conveyor; 39. Chain conveyor; 41. Section package detector; 42. Inlet package detector; 43. First operation package detector; 44. Second operation package detector; 45. Shunt package detector; 51. Shrink packaging control baffle; 52. Weighing control baffle; 53. Shunt control baffle; 61. First barcode scanner; 62. Second barcode scanner; 63. Third barcode scanner; 64. Fourth barcode scanner. Detailed implementation manners

[0023] In order to make the objectives, technical solutions, and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. Based on the embodiments of the present application described herein, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0024] In the following description, numerous specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application may be implemented without one or more of these details. In other instances, in order to avoid confusion with the present application, some technical features well known to those skilled in the art are not described.

[0025] It should be understood that the present application can be implemented in different forms and should not be construed as limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0026] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present application. When used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups. When used herein, the term "and / or" includes any and all combinations of the related listed items.

[0027] To fully understand the present application, detailed structures will be presented in the following description to illustrate the technical solutions proposed by the present application. The optional embodiments of the present application are described in detail below. However, in addition to these detailed descriptions, the present application may also have other implementation manners.

[0028] Figure 1 Shows a structural example of a fully automatic packing line processing system according to an embodiment of the present invention. As Figure 1 shown, the fully automatic packing line processing system in this embodiment includes: a plurality of packing devices and a control unit 1.

[0029] A plurality of packing devices are arranged on the package conveyor line; the packing devices at least include: A plurality of palletizing and strapping machines 21, corresponding to a plurality of material inlets one by one, and the palletizing and strapping machines 21 are configured to pre-package the materials conveyed out from the material inlets into a package; Among them, the palletizing and strapping machines 21 are responsible for integrating the materials entering the system from the material inlets into complete packages. The strapping method can be dynamically adjusted according to the material type to ensure the stability of the package structure.

[0030] A plurality of first label printers 22, corresponding to the material inlets one by one, and the first label printers 22 are configured to paste the first sticker on the first position of the package; wherein, the first sticker displays a first identification code; Among them, after the palletizing and strapping machines 21 complete the strapping of the package, the first label printers 22 paste the first sticker containing the first identification code (such as a barcode, a QR code) on the first position (such as the top) of the package. The first identification code is used for package identity identification and subsequent tracking.

[0031] A weighing machine 23 is configured to weigh the package to obtain the weight information of the package; Among them, the weighing machine 23 conducts real-time weight detection on the packages, records the weight information and is linked with the control unit 1. The weighing result will be one of the key parameters for compliance verification, and is used to verify whether the package meets the preset specifications (such as overweight reminder, etc.).

[0032] The second labeling machine 24 is configured to paste a second sticker on the second position of the package; the second sticker displays a second identification code; Among them, after the package passes the weighing, the second sticker is pasted to the second position of the package (such as the side). The second sticker contains the second identification code and production information (such as the code of the palletizing and bundling machine, bar code, package weight information, label generation date, operator code, etc.), and is used for quality traceability and logistics management.

[0033] Multiple conveyors 3 are configured to convey packages on the package conveyor line.

[0034] Among them, the multiple conveyors 3 adopt a continuous conveyor line design and are responsible for transferring packages in the bagging process. The operating state of the conveyor 3 is dynamically regulated by the control unit 1, and can be automatically started, stopped or adjusted according to the number of packages on the conveyor or the operating load of each bagging device (such as device blockage or idleness) to optimize the overall efficiency.

[0035] The control unit 1 is configured to receive the data information of multiple bagging devices, conduct compliance verification on the packages according to the first identification code, second identification code and weight information of the packages; and conduct corresponding control on the bagging devices according to the verification results and data information. Among them, the control unit 1 controls the operating state of the conveyor 3 according to the number of the first packages on the conveyor 3 or the number of packages currently being processed by the bagging device.

[0036] It can be understood that the control unit 1 receives the data information of multiple bagging devices. These data information include but are not limited to the operating state of the palletizing and bundling machine 21 (such as whether it is working properly, the completion of palletizing and bundling, etc.), the labeling situation of the first labeling machine 22 (such as whether the labeling is successful, the recording of the first identification code, etc.), the weighing data of the weighing machine 23, the labeling information of the second labeling machine 24 (the recording situation of the second identification code), and the operating state of the conveyor 3 (such as the conveying speed, the number of the first packages, etc.). According to the preset package compliance verification items and the received data information, compliance verification is conducted on the packages on the package conveyor line, which can include whether the package weight is within the specified range, whether the identification code of the sticker is correct, etc. For example, if the preset package weight range is set, and the data transmitted by the weighing machine 23 shows that the package weight exceeds this range, then this package does not meet the compliance verification requirements. For example, if the first labeling machine 22 fails to label, the control unit 1 can issue an instruction to let the first labeling machine 22 relabel; if the weighing result shows that the package is overweight, the control unit 1 can control the conveyor 3 to stop conveying this package and issue a reminder message to notify relevant personnel for handling.

[0037] In this embodiment, the operation process of the system is as follows: After the materials enter the full-automatic bagging line processing system from the material inlet, the palletizing and bundling machine 21 completes the integration and bundling to form packages. The packages are transported to the first labeling machine 22, and the first labeling machine 22 pastes the first sticker with the first identification code on the first position of the package. The package with the first sticker pasted is sent to the weighing machine 23 for weighing, and the weighing machine 23 transmits the weighing data to the control unit 1. The weighed package is sent to the second labeling machine 24, and the second labeling machine 24 pastes the second sticker with the second identification code on the second position of the package. During the whole process, the conveyor 3 continuously transports the packages between various devices, and the control unit 1 controls the running state of the conveyor 3 according to the number of the first packages on the conveyor 3 or the number of packages currently processed by the bagging device. At the same time, the control unit 1 receives the data information of each bagging device, conducts compliance verification on the packages, and controls the bagging device accordingly according to the verification result.

[0038] In this embodiment, multiple bagging devices are arranged on the package conveyor line. This layout is beneficial to the collaborative work between various devices, forming an orderly automated process and improving the overall operation efficiency of the package conveyor line. The control unit 1 controls the running state of the conveyor 3 according to the number of the first packages on the conveyor 3 or the number of packages currently processed by the bagging device. This helps to avoid congestion or accumulation of packages on the conveyor line, ensuring the stable operation of the whole system and further improving the production efficiency. The identification code and production information are helpful for accurate identification and management of the packages. In the logistics, warehousing or subsequent sales links, it is convenient to track information such as the source and production status of the packages, improving the accuracy and traceability of package management. The control unit 1 conducts compliance verification on the packages by receiving the data information of multiple bagging devices and according to the preset compliance verification items and data information, and then controls the bagging device accordingly. This helps to ensure that the bagging process of the packages meets the relevant requirements, improving the quality and consistency of the packages and reducing the occurrence of unqualified products.

[0039] Figure 2 shows a structural example of the full-automatic bagging line processing system according to an embodiment of the present invention. As Figures 3 to 7 shown, the full-automatic bagging line processing system in this embodiment is in Figure 1 and Figure 2On the basis of the system, there also include a plastic sealing machine and an inkjet coding machine. In the illustrated embodiment, a thermal plastic sealing machine and a laser inkjet coding machine are used. Among them, the thermal plastic sealing machine is located on the package conveyor line between the first labeling machine 22 and the second labeling machine 24, and the thermal plastic sealing machine is configured to thermally seal the package; the laser inkjet coding machine is located on the package conveyor line downstream of the second labeling machine 24 and is configured to laser print anti-counterfeiting numbers on the second label; wherein, the control unit 1 controls the laser inkjet coding machine to laser print anti-counterfeiting numbers on the second label according to the first identification code on the first label, and the anti-counterfeiting numbers are consistent with the first identification code, ensuring the traceability of information in multiple links of the package. It is applicable to packages that require multiple identifications (such as logistics tracking, anti-counterfeiting verification).

[0040] Among them, the thermal plastic sealing machine thermally seals the passing packages to make their outer packages more firm and prevent breakage or moisture absorption during transportation. The thermal plastic sealing machine can be located downstream or upstream of the weighing machine 23. Preferably, the package first passes through the weighing machine 23 and then through the thermal plastic sealing machine. Under the condition of ensuring that the package weight complies with the regulations, the package is thermally sealed.

[0041] In some embodiments, such as Figure 3 shown, the control unit 1 may include: a host computer system and an electrical control system. The electrical control system is connected to multiple packaging devices; the host computer system is connected to the electrical control system. The host computer system is configured to output control instructions to the electrical control system according to data information and user instructions, so that the electrical control system controls the corresponding packaging devices according to the control instructions and displays the data information on the man-machine interface.

[0042] Among them, the control unit 1 is responsible for coordinating the work of multiple packaging devices to ensure the smooth progress of the entire packaging process. The electrical control system is connected to multiple packaging devices. This connection enables the electrical control system to interact with the packaging devices, which is the basis for the entire control unit 1 to obtain data information of the packaging devices. For example, the electrical control system can receive the working status information of the palletizing and strapping machine 21 (such as whether palletizing is in progress, whether strapping is completed, etc.), the labeling status of the first labeling machine 22 (such as whether labeling is successful, the number of labels), the weighing value of the weighing machine 23, the labeling data of the second labeling machine 24 (such as the recording situation of the second identification code), and the operating parameters of the conveyor 3 (such as speed, the number of the first packages, etc.).

[0043] The human-machine interaction interface serves as the interface for the user to interact with the control unit 1. The human-machine interaction interface can receive various instructions input by the user. The user can perform operations such as setting the parameters of the package compliance verification items and querying the historical data of the device through this interface. The data information received from the packetizing device is displayed on the interface. This enables the operator to intuitively understand the working status of each packetizing device. For example, on the human-machine interaction interface, the weight value of the currently weighed package by the weighing machine 23, the labeling content of the first labeling machine 22 and the second labeling machine 24, the simulation model diagram of the package transportation line, etc. can be displayed, facilitating the operator to monitor the entire packetizing process.

[0044] The host computer system continuously receives the data information of multiple packetizing devices and displays the acquired data information for the user to view.

[0045] After receiving the data information from the packetizing device and the user instructions from the human-machine interaction interface, the host computer system performs comprehensive analysis and processing, and then outputs control instructions to the electrical control system.

[0046] In this embodiment, by integrating the electrical control system, the human-machine interaction interface, and the host computer system in the control unit 1, centralized control and management of multiple packetizing devices are achieved, improving the overall coordination and operation efficiency of the system. The human-machine interaction interface provides an intuitive and convenient operation method for the user. The user can easily input instructions and view the device data information without complex operation processes, reducing the work difficulty of the operator.

[0047] The host computer system can intelligently output control instructions based on the data information and user instructions, and can flexibly adjust the operating status of the packetizing device according to the actual situation, improving the adaptability of the system to different working requirements and abnormal situations.

[0048] See Figure 4 , taking an e-commerce logistics sorting center as an example: Package process: The package formed by bundling through the palletizing and strapping machine 21 is pasted with the first sticker by the first labeling machine 22. The package with the first sticker pasted enters the weighing machine 23 for weighing. After weighing, it is conveyed to the heat shrink packaging machine 25 for heat shrink packaging (to prevent moisture in rainy days). Then, the second labeling machine 24 pastes the second sticker with the second identification code on the second position of the package. After that, the laser coding machine 26 directly prints the same ID on the outer package of the package (which can still be scanned even if the logistics label falls off). The second labeling machine 24 pastes the customer information form (consistent with the laser coding ID).

[0049] Such as Figure 4As shown, in some embodiments, the conveyor 3 includes a segment conveyor 31 and an inlet conveyor 32. Among them, a plurality of segment conveyors 31 are connected in sequence to collect and convey the packages from the inlet conveyor 32 to the downstream. Each segment conveyor 31 corresponds to an inlet conveyor 32. The inlet conveyor 32 is connected between the material inlet and the segment conveyor 31 to convey the packages from the material inlet to the corresponding segment conveyor 31; The control unit 1 controls the operating state of the conveyor 3 according to the number of the first packages on the conveyor 3, including: Comparing the number of the first packages on the segment conveyor 31 with a preset first quantity threshold; When the number of the first packages on the segment conveyor 31 is greater than or equal to the first quantity threshold, the control unit 1 controls the inlet conveyor to suspend operation.

[0050] Among them, the preset first quantity threshold is set according to parameters such as the maximum load capacity of the conveyor 3 and the average processing time of the packages, and is used to determine whether to trigger flow regulation.

[0051] The control unit 1 obtains the number of packages on the segment conveyor 31, compares the current number with a preset threshold (for example, 3 packages); if the current number ≥ the threshold, it is determined to be in an overloaded state; the inlet conveyor is controlled to suspend operation. When the number of packages on the overloaded conveyor drops below the threshold, the inlet conveyor is automatically restarted.

[0052] In this embodiment, by dynamically suspending the upstream conveyor 3, it is avoided that the packages accumulate at the overloaded nodes, ensuring the overall conveying efficiency. According to the real-time flow, the operating state of the device is adjusted to reduce the idling energy consumption and extend the service life of the device. Through the collaborative design of the inlet conveyor 32 and the segment conveyor 31, the rapid diversion and out-of-warehouse of the bundled packages are realized.

[0053] As Figure 5 shown, in some embodiments, the sealing device further includes a plurality of package detectors, which are typically sensors. According to the installation position, the package detectors are named segment package detectors 41 and inlet package detectors 42. The segment package detectors 41 correspond to the segment conveyors 31 one by one and are configured to detect the packages conveyed by the segment conveyors 31. Each time a package is detected, a first package signal is generated; the inlet package detectors 42 correspond to the inlet conveyors 32 one by one, for example, installed near the palletizing and bundling machine 21, and are configured to detect the packages conveyed by the inlet conveyors 32. Each time a package is detected, a second package signal is generated to ensure that all the packages output from the palletizing and bundling machine 21 are recorded.

[0054] The control unit 1 dynamically counts the second package signal and the first package signal, and obtains the number of the first packages on the segment conveyor 31 according to the counting result.

[0055] Among them, the segment package detector 41 and the entrance package detector 42 can be infrared photoelectric sensors, which generate pulse signals when detecting the passing of a package. Alternatively, the segment package detector 41 and the entrance package detector 42 can be pressure sensors based on weight induction, which generate high-level signals when detecting the passing of a package.

[0056] The control unit 1 receives the first package signal and the second package signal, accumulates the first package signal and the second package signal, and calculates the number of detained packages on the segment conveyor 31.

[0057] In some embodiments, dynamically counting the second package signal and the first package signal, and obtaining the number of the first packages on the segment conveyor 31 according to the counting result, includes: Setting the number of the first packages on the segment conveyor 31 to 0; Whenever counting a second package signal corresponding to the entrance conveyor 32, adding 1 to the number of the first packages on the segment conveyor 31; Whenever counting a first package signal corresponding to the previous segment conveyor of the segment conveyor 31, adding 1 to the number of the first packages on the segment conveyor 31; Whenever counting a first package signal corresponding to the segment conveyor 31, subtracting 1 from the number of the first packages on the segment conveyor 31.

[0058] When the number of the first packages on the segment conveyor 31 is 0, returning to the step of setting the number of the first packages on the segment conveyor 31 to 0.

[0059] It can be combined Figure 5 Understood that the control unit 1 adopts the cumulative - decremental counting method, and the specific process is as follows: Initialization stage: Setting the counter C = 0 for each segment conveyor 31; When receiving the second package signal: The counter C of the current segment conveyor ( Figure 5 the segment counter located above in the previous segment conveyor ( Figure 5 the segment counter located below in When receiving the first package signal: The counter C of the current segment conveyor ← C - 1; If C < 0, triggering an exception reminder; Counter zeroing process: When C = 0 lasts for more than 5s; Performing counter reset; Generating a "conveyor idle" status signal.

[0060] In some embodiments, compliance verification of packages on the package conveyor line is performed according to preset compliance verification items and data information, including: Verifying whether the weight of the package is compliant according to the weight information obtained by the weighing machine 23; When the package is at the material inlet, the first identification code of the package is collected once; When the package is conveyed between the first labeling machine 22 and the second labeling machine 24, the first identification code of the package is collected a second time; The first identification code collected once and the first identification code collected a second time are compared for consistency, and whether the identity of the package is compliant is verified according to the comparison result; When the package is conveyed downstream of the second labeling machine 24, the first identification code and the second identification code of the package are collected respectively; The first identification code and the second identification code are compared, and whether the identity of the package is compliant is verified according to the comparison result; wherein, the second identification code has a unique corresponding relationship with the first identification code; When the weight of the package is compliant and the identity is compliant, the package is compliant; When at least one of the weight and identity of the package is non-compliant, the package is non-compliant.

[0061] In some embodiments, the sealing device further includes: A first barcode scanner 61, arranged at the material inlet (adjacent to the first labeling machine), configured to scan the first identification code on the first label immediately after the package is first labeled; A second barcode scanner 62, arranged on the conveyor line between the first labeling machine 22 and the second labeling machine 24, configured to scan the first identification code on the first label for mid-way identity verification; A third barcode scanner 63, arranged on the conveyor line downstream of the second labeling machine 24, configured to scan the first identification code on the first label; A fourth barcode scanner 64, arranged on the conveyor line downstream of the second labeling machine 24, configured to scan the second identification code on the second label; In this embodiment, the first barcode scanner 61, the second barcode scanner 62, the third barcode scanner 63, and the fourth barcode scanner 64 scan the identification code on the package at different positions. This multiple barcode scanning detection mechanism is like setting up multiple lines of defense, greatly improving the accuracy of identification code recognition. For example, the first barcode scanner 61 initially scans the first identification code at the material inlet. If the barcode scanning is unsuccessful or the recognition is incorrect, the second barcode scanner 62 can scan the first identification code again, increasing the probability of correct recognition. The third barcode scanner 63 scans the first identification code on the second sticker, and the fourth barcode scanner 64 scans the second identification code on the second sticker. In this way, the identification codes on different stickers can be accurately distinguished, avoiding information confusion and ensuring the system's accurate grasp of the package information. The barcode scanning data obtained by different barcode scanners can be correlated with each other, providing more comprehensive information for package management. For example, through the barcode scanning data of the first identification code by the first barcode scanner 61 and the second barcode scanner 62, the status of the package during the front-end conveying process can be correlated; while the barcode scanning data of the second sticker identification code by the third barcode scanner 63 and the fourth barcode scanner 64 can reflect the situation of the package when it is close to completing the sealing. The correlation of these data helps to build a complete package management system.

[0062] In this embodiment, for weight compliance verification, the control unit 1 compares the package weight information detected by the weighing machine 23 with a preset weight range (such as a minimum value and a maximum value). If the weight exceeds the preset weight range, the weight is non-compliant. For identity compliance verification (multi-level verification), primary verification: The second barcode scanner 62 scans the first identification code and compares it with the original code recorded by the first barcode scanner 61. Through the comparison of the two barcode scans, the unique correspondence between the first identification code and the second identification code is verified to ensure the consistency of the label information and ensure that the label has not been tampered with or fallen off. Secondary verification: The end barcode scanner group synchronously scans the first identification code and the second identification code to verify whether they match the preset unique correspondence (such as the database binding relationship). Judgment result: If any link comparison fails, it is marked as "identity non-compliant". Comprehensively judged compliant package: Both weight and identity pass the verification and continue to be conveyed to the next link. Non-compliant package: Trigger the exception handling process.

[0063] The sealing device further includes a computer terminal, which corresponds to the palletizing and strapping machine 21 one by one. The computer terminal is connected to the palletizing and strapping machine 21 and is configured to perform local management on the palletizing and strapping machine 21, and send the data information of the palletizing and strapping machine 21 to the preset data storage 11; the computer terminal is connected to the first barcode scanner 61, and the computer terminal is further configured to send the first identification code obtained by the first barcode scanner 61 to the data storage 11.

[0064] It can be understood that the data storage can be a database or a cloud data storage. Among them, the computer terminal is in one-to-one correspondence and connected with the pallet strapping machine 21. This one-to-one connection method ensures that each pallet strapping machine 21 has a dedicated computer terminal for management, with strong pertinence. The computer terminal is configured to perform local management on the pallet strapping machine 21. This includes setting the working parameters of the pallet strapping machine 21, monitoring the operating status of the pallet strapping machine 21 (such as whether it is operating normally, whether there is a fault warning, etc.), optimizing the operation process of the pallet strapping machine 21, and other operations. For example, locally, parameters such as the palletizing method and strapping force of the pallet strapping machine 21 can be adjusted according to different material types and packaging requirements.

[0065] Send the data information of the pallet strapping machine 21 to the data storage 11. The pallet strapping machine 21 will generate various data information during the working process, such as working duration, palletizing quantity, strapping success rate, etc. The computer terminal will send this data information to the data storage in a timely manner. The advantage of doing this is to facilitate the long-term recording and analysis of the working conditions of the pallet strapping machine 21, providing data support for subsequent production statistics, equipment maintenance, etc.

[0066] The computer terminal is connected to the first barcode scanner 61. This connection enables the computer terminal to obtain the information obtained by the first barcode scanner 61. Send the first identification code obtained by the first barcode scanner 61 to the data storage 11. After the computer terminal sends the first identification code to the data storage 11, it is convenient to track and query the package in the entire package conveying line processing system, ensuring the information integrity of the package in each link.

[0067] In some embodiments, the package compliance items include package weight and package identity; according to the data information and verification results, perform corresponding control on the sealing device, including: In the case where the weight of the package is non-compliant, determine the target sealing device according to the position where the package identity is determined to be non-compliant; among them, the target sealing device includes the sealing device located downstream of the position where the package identity is determined to be non-compliant; Control the target sealing device not to operate on the package, control the second labeling machine 24 to display the non-compliance reason on the second label, and control the conveyor 3 to convey the package to the end of the package conveying line.

[0068] In this embodiment, by determining the target packet sealing device according to the position where the package identity is non-compliant, the relevant device involved in the problem package in the packet sealing process can be accurately found. This precise positioning helps to quickly take countermeasures and reduce the time and cost of problem finding. For example, if a package identity non-compliance is found at a specific inspection point, the system can quickly determine the packet sealing device before this inspection point, avoiding unnecessary operations on non-compliant packages on these devices. Controlling the target packet sealing device not to operate on non-compliant packages can avoid continuing to invest resources in packet sealing operations when it is known that the package is non-compliant. This not only saves resources such as time, energy, and raw materials, but also improves the overall operation efficiency of the packet sealing device, enabling the device to devote more energy to the processing of compliant packages.

[0069] Control the second labeling machine 24 to display the reason for non-compliance on the second label, providing a clear basis for subsequent processing of the package. Whether in subsequent manual rechecks or automated processing flows, staff or other devices can clearly see the reason for the package non-compliance at a glance, and thus take corresponding processing measures. For example, if the package weight is non-compliant, the displayed reason can help the staff determine whether it is a problem with the weighing device or the contents of the package itself.

[0070] Control the conveyor 3 to transport non-compliant packages to the end of the package conveyor line, realizing the orderly management of non-compliant packages. This can concentrate non-compliant packages in a specific area, facilitating subsequent processing such as repackaging, weight adjustment, or further inspection operations, and at the same time not interfering with the normal packet sealing process of compliant packages.

[0071] The packet sealing device further includes a package sorter configured to remove the package from the package conveyor line; When the verification result of the package is non-compliant, the control unit 1 controls the package sorter to remove the package from the package conveyor line.

[0072] Among them, the package sorter can be arranged at the end of the package conveyor line or key nodes, and through devices such as robotic arms and pneumatic push rods, remove non-compliant packages from the main conveyor line and transfer them to the rework area or the abnormal handling area.

[0073] As Figure 6 shown, in some embodiments, the packet sealing device further includes a first working package detector 43 and a plastic sealing regulation baffle 51 provided at the entrance of the heat shrink packaging machine. The plastic sealing regulation baffle 51 is configured to block the package when the plastic sealing regulation baffle 51 is in the lowered state; The first working package detector 43 is configured to count the number of packages conveyed to the plastic sealing machine. For each detected package, a first working package signal is generated; the current number of working packages of the plastic sealing machine is determined according to the first working package signal; The control unit controls the running state of the conveyor at the inlet of the plastic sealing machine and the lifting state of the plastic sealing control baffle according to the number of packages wrapped in the current operation of the plastic sealing machine.

[0074] As Figure 6 shown, in some embodiments, the packing device further includes a second working package detector 44 and a weighing control baffle 52 provided at the inlet of the weighing machine 23; the weighing control baffle 52 is configured to block the packages at the inlet of the weighing machine 23 when the weighing control baffle 52 is in the lowered state; The second working package detector 44 is configured to detect the number of packages conveyed to the weighing machine, and generate a second working package signal for each detected package; determine the number of packages in the current operation of the weighing machine according to the second working package signal; The control unit controls the running state of the conveyor at the inlet of the weighing machine and the lifting state of the weighing machine control baffle according to the number of packages in the current operation of the weighing machine.

[0075] It can be understood that the control unit 1 monitors the number of packages in the current operation of the packing device in real time. The control unit 1 compares the number of packages in the current operation of the packing device (plastic sealing machine, weighing machine) with a preset operation quantity threshold. This operation quantity threshold is a value preset according to factors such as the processing capacity of the packing device and the running efficiency of the overall system. For example, according to the designed production capacity of the packing device, the threshold of the number of packages that can be processed each time is set. This method avoids the errors that may occur in manual statistics and ensures the accuracy of the statistics of the number of packages in the current operation of the packing device. For example, during high-speed packing operations, it is difficult for humans to accurately count the number of packages passing through instantaneously, while the working package detector can accurately complete this task. As the packages are continuously conveyed, the working package detector generates working package signals in real time, and the control unit 1 can timely determine the number of packages in the current operation of the packing device based on these real-time signals. This enables the system to quickly respond to changes in the number of packages and timely adjust the running state of the conveyor and the lifting state of the control baffle, thereby improving the flexibility and adaptability of the entire fully automatic packing line processing system.

[0076] The plastic-sealing control baffle 51 can be lifted and lowered according to the number of packages currently being wrapped by the heat plastic-sealing machine. When the number of packages being wrapped by the heat plastic-sealing machine reaches a certain limit, the baffle drops to block subsequent packages. This can prevent an excessive number of packages from flooding into the heat plastic-sealing machine, avoid malfunctions caused by overloading of the heat plastic-sealing machine, and extend the service life of the heat plastic-sealing machine. For example, if the heat plastic-sealing machine receives too many packages in a short period of time, it may lead to problems such as uneven heating and incomplete sealing. The plastic-sealing control baffle 51 can effectively avoid these situations. By reasonably controlling the number of packages entering the heat plastic-sealing machine, the heat plastic-sealing machine can operate at its optimal working load. When the number of packages is appropriate, the heat plastic-sealing machine can complete the plastic-sealing operation more efficiently, reduce the waiting time of packages in the heat plastic-sealing machine, and improve the overall plastic-sealing quality and production efficiency.

[0077] The weighing control baffle 52 controls its lifting and lowering state according to the number of packages currently being processed by the weighing machine 23. When the number of packages being processed by the weighing machine 23 is large, the baffle drops to block subsequent packages. This can prevent an excessive number of packages from arriving at the weighing machine 23 simultaneously, avoid damage to the weighing machine 23 due to overloading, and ensure the accuracy and stability of the weighing machine 23. For example, if there are multiple packages on the weighing machine 23 at the same time, they may interfere with each other and affect the accuracy of the weighing result. The weighing control baffle 52 can avoid this situation. The presence of the weighing control baffle 52 ensures that only one package (or a suitable number of packages within a range) is on the weighing machine 23 during each weighing, which helps to improve the accuracy of weighing. Accurate weighing results are crucial for subsequent package processing (such as determining whether the package is compliant, etc.).

[0078] The control of the weighing control baffle 52 is coordinated with the entire packaging device system. It adjusts the inflow of packages according to the number of packages being processed by the weighing machine 23, enabling the weighing machine 23 to better integrate into the entire package conveying line processing system. This coordination helps to improve the operating efficiency of the entire system and reduce the stagnation or errors of the entire system caused by problems in the weighing process. Similar to the plastic-sealing control baffle 51, the weighing control baffle 52 also helps to optimize the package flow. It controls the rhythm of packages entering the weighing machine 23, thereby avoiding package accumulation at the weighing machine 23 and ensuring the smooth flow of packages in the entire package conveying line processing system.

[0079] As Figure 4 and 7 shown, in some embodiments, the package conveying line includes multiple first conveying lines and one second conveying line. Figure 4 In the embodiments shown, there are two first conveying lines, which are respectively connected to the second conveying line. The first conveying lines are configured to convey packages from the inlet conveyor to the second conveying line. The weighing machine and the second labeling machine are arranged on the second conveying line. The end of the first conveying line is provided with an end conveyor 35, and the start of the second conveying line is provided with a start conveyor 36. The end conveyor 35 is connected to the start conveyor 36. Each conveying channel of the terminal conveyor 35 is respectively provided with a shunt package detector 45. The shunt package detector 45 is configured to detect the packages conveyed by each conveying channel of the terminal conveyor 35. Each time a package is detected, a shunt package signal is generated; The control unit 1 determines the number of the first packages on the starting conveyor 36 according to the shunt package signal, and controls the two conveying channels of the terminal conveyor 35 to alternately convey packages to the starting conveyor 36 according to the number of the first packages on the starting conveyor 36.

[0080] Among them, the conveyor 3 on the first conveyor line conveys the packages that have been sealed to the subsequent packaging area. The segment conveyor 31 is located on the first conveyor line, and the second conveyor line is connected to the ends of the two first conveyor lines. The conveyor 3 can be set as a belt conveyor, a roller conveyor or a chain conveyor according to the position requirements. As Figure 4 shown, the segment conveyor 31 can be a belt conveyor, the conveyor at the turning point on the package conveying line can be a chain conveyor 39, the conveyor where the two first conveyor lines merge into the second conveyor line in parallel can be a bidirectional chain conveyor 38, and the packages can first pass through a section of roller conveyor 37 for buffering and then be conveyed to the bidirectional chain conveyor 38. The second conveyor line receives the packages from the first conveyor line through the starting conveyor 36 and transfers them to the subsequent packaging or outbound link. The terminal conveyor 35 is deployed at the ends of the two first conveyor lines, has two independent conveying channels, is respectively communicated with the two first conveyor lines, and finally converges into the starting conveyor 36 of the second conveyor line. The terminal conveyor 35 can be a double-channel roller conveyor, and the starting conveyor 36 can be a converging roller conveyor.

[0081] In this embodiment, at the starting end of the second conveyor line, the starting conveyor 36 is responsible for receiving the packages from the two first conveyor lines. Without reasonable flow control, it may cause congestion on the second conveyor line and affect the overall production efficiency. In this embodiment, through the collaborative work of the shunt package detector 45 and the control unit 1, the dynamic management of the package flow is realized. The shunt package detector 45 monitors the packages on each conveying channel and feeds back the information to the control unit 1. The control unit 1 intelligently adjusts the working states of the two conveying channels of the terminal conveyor 35 according to the load condition of the starting conveyor 36 to ensure the uniform distribution of the packages and avoid local congestion. The operation of the second conveyor line is smoother, reducing the problems of delays and low production efficiency caused by congestion.

[0082] In some embodiments, shunt regulation baffles 53 are respectively arranged on the two conveying channels of the terminal conveyor 35. The shunt regulation baffles 53 are configured to block the packages conveyed on the terminal conveyor 35 when the shunt regulation baffles 53 are in the lowered state; The control unit 1 controls the lifting state of the shunt regulating baffle 53 according to the number of the first packages on the head conveyor 36.

[0083] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present invention thereto. Those of ordinary skill in the art can make various changes and modifications therein without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

[0084] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0085] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0086] In the specification provided herein, a large number of specific details are set forth. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0087] Similarly, it should be understood that, in order to streamline the present invention and assist in understanding one or more of the various inventive aspects, in the description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present invention should not be construed as reflecting the intention that the claimed present invention requires more features than are expressly recited in each claim. Rather, as reflected by the corresponding claims, the inventive point lies in that the corresponding technical problems can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, where each claim itself serves as a separate embodiment of the present invention.

[0088] Those skilled in the art will appreciate that, except where features are mutually exclusive, any combination can be employed to combine all the features disclosed in this specification (including the accompanying claims, abstract, and drawings), as well as all the processes or units of any method or apparatus so disclosed. Each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by alternative features that serve the same, equivalent, or similar purpose, unless expressly stated otherwise.

[0089] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments and not others, combinations of features of different embodiments are meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0090] Each component embodiment of the present invention can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all of the functions of some of the modules according to the embodiments of the present invention. The present invention can also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program for implementing the present invention can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, or provided on a carrier signal, or in any other form.

[0091] It should be noted that the above embodiments illustrate the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

Claims

1. An automatic packet sealing line processing system, characterized in that, The system includes: A plurality of packaging devices and a control unit. The plurality of packaging devices are arranged on a package conveyor line. The packaging devices at least include: A plurality of palletizing and bundling machines, corresponding to a plurality of material inlets one by one. The palletizing and bundling machines are configured to pre-package the materials conveyed out from the material inlets into a package. A plurality of first labelers, corresponding to the plurality of material inlets one by one. The first labelers are configured to paste a first sticker on a first position of the package. Wherein, the first sticker displays a first identification code. A weighing machine, configured to weigh the package to obtain the weight information of the package. A second labeler, configured to paste a second sticker on a second position of the package. The second sticker displays a second identification code. A plurality of conveyors, configured to convey the packages on the package conveyor line. The conveyors at least include a segment conveyor and an inlet conveyor at the material inlet. The plurality of segment conveyors are connected to each other. The inlet conveyor is connected between the material inlet and the segment conveyor. The control unit controls the operating state of the inlet conveyor corresponding to the segment conveyor according to the number of the first packages on the segment conveyor. The control unit is configured to receive the data information of the plurality of packaging devices, perform compliance verification on the packages according to the first identification code, the second identification code and the weight information of the packages, and perform corresponding control on the packaging devices according to the verification result and the data information.

2. The system according to claim 1, wherein The packaging device further includes a segment package detector and an inlet package detector. The segment package detector corresponds to the segment conveyor one by one and is configured to detect the packages conveyed by the segment conveyor. Each time a package is detected, a first package signal is generated. The inlet package detector corresponds to the inlet conveyor one by one and is configured to detect the packages conveyed by the inlet conveyor. Each time a package is detected, a second package signal is generated. According to the first package signal and the second package signal, obtain the number of the first packages on the segment conveyor. Wherein, The package detection position of the segment conveyor, the package detection position of the previous segment conveyor of the segment conveyor and the package detection position of the inlet conveyor corresponding to the segment conveyor enclose a detection area for detecting the number of packages on the segment conveyor.

3. The system according to claim 2, wherein According to the first package signal and the second package signal, obtaining the number of the first packages on the segment conveyor includes: Set the number of the first packages on the segment conveyor to 0. Whenever a second package signal of the inlet conveyor corresponding to the segment conveyor is counted, add 1 to the number of the first packages on the segment conveyor. Whenever a first package signal of the previous segment conveyor of the segment conveyor is counted, add 1 to the number of the first packages on the segment conveyor. Whenever a first package signal of the segment conveyor is counted, subtract 1 from the number of the first packages on the segment conveyor. When the number of the first packages on the segment conveyor is 0, return to the step of setting the number of the first packages on the segment conveyor to 0.

4. The system according to claim 1, wherein Controlling the operating state of the corresponding inlet conveyor of the segment conveyor according to the number of the first packages on the segment conveyor, including: Comparing the number of the first packages on the segment conveyor with a preset first quantity threshold; When the number of the first packages on the segment conveyor is greater than or equal to the first quantity threshold, the control unit controls the inlet conveyor to suspend operation.

5. The system according to claim 1, wherein The sealing device further includes: A first barcode scanner arranged at the material inlet and configured to scan the first identification code on the first sticker; A second barcode scanner arranged at the inlet of the weighing machine and configured to scan the first identification code on the first sticker; A third barcode scanner arranged on the conveyor line downstream of the second labeling machine and configured to scan the first identification code on the first sticker; A fourth barcode scanner arranged on the conveyor line downstream of the second labeling machine and configured to scan the second identification code on the second sticker.

6. The system according to claim 5, wherein Performing compliance verification on the package according to the first identification code, the second identification code and the weight information of the package, including: Verifying whether the identity of the package is compliant by comparing the weight information of the package obtained by the weighing machine with a preset weight threshold corresponding to the package; wherein, according to the first identification code scanned and recognized by the second barcode scanner, the preset weight threshold corresponding to the package is obtained; Verifying whether the weight of the package is compliant according to the weight information obtained by the weighing machine; Comparing the first identification code recognized by the third barcode scanner with the second identification code recognized by the fourth barcode scanner, and verifying whether the identity of the package is compliant according to the comparison result; wherein, the second identification code has a unique corresponding relationship with the first identification code; When the weight and identity of the package are compliant, the package is compliant; When at least one of the weight and identity of the package is non-compliant, the package is non-compliant.

7. The system according to claim 5, wherein The sealing device further includes a plurality of computer terminals, which are in one-to-one correspondence with the material inlets, the computer terminals are connected to the first barcode scanners at the corresponding material inlets, and the computer terminals are configured to send the first identification code obtained by the first barcode scanners to a data storage, and the control unit obtains the first identification code from the data storage and obtains the second identification code according to the first identification code.

8. The system according to claim 7, wherein The computer terminals are connected to the inlet conveyors at the corresponding material inlets, and the computer terminals are configured to perform local control on the inlet conveyors.

9. The system according to claim 7, characterized in that, The computer terminals are connected to the palletizing and strapping machines at the corresponding material inlets, and the computer terminals are configured to perform local control on the palletizing and strapping machines and send the data information of the palletizing and strapping machines to the data storage.

10. The system according to claim 5, wherein The sealing device further includes a package sorter configured to move the package out of the package conveyor line; Performing corresponding control on the sealing device according to the data information and the verification result, including: In the case where the verification result of the package is non-compliant, determine the target sealing device according to the position where the package is determined to be non-compliant; wherein, the target sealing device is the sealing device located downstream of the position of the non-compliant package; Control the target sealing device not to operate on the package, control the second labeler to display the reason for non-compliance on the second label, and control the package sorter to remove the package from the package conveyor line.

11. The system according to any one of claims 1 to 10, characterized in that, The sealing device further includes: a plastic sealing machine and / or a coding machine, wherein, The plastic sealing machine is located between the first labeler and the second labeler, and the plastic sealing machine is configured to plastic-seal the package; The coding machine is located downstream of the second labeler, and the coding machine is configured to print anti-counterfeiting numbers on the second label, wherein the anti-counterfeiting numbers are obtained according to the first identification code.

12. The system according to claim 11, wherein The sealing device further includes a first working package detector and a plastic-sealing control baffle provided at the entrance of the plastic-sealing machine; The first working package detector is configured to detect the number of packages conveyed to the plastic-sealing machine, and generate a first working package signal for each detected package, and determine the number of packages currently being processed by the plastic-sealing machine according to the first working package signal; The control unit controls the raising and lowering of the plastic-sealing control baffle according to the number of packages currently being processed by the plastic-sealing machine.

13. The system according to any one of claims 1 to 10, characterized in that, The sealing device further includes a second working package detector and a weighing control baffle provided at the entrance of the weighing machine; The second working package detector is configured to detect the number of packages conveyed to the weighing machine, and generate a second working package signal for each detected package, and determine the number of packages currently being processed by the weighing machine according to the second working package signal; The control unit controls the raising and lowering state of the weighing control baffle according to the number of packages currently being processed by the weighing machine.

14. The system according to any one of claims 1 to 10, characterized in that, The package conveyor line includes multiple first conveyor lines and one second conveyor line. The conveyors on the first conveyor lines are connected to the conveyor on the second conveyor line. The conveyors on the first conveyor lines are configured to convey packages from the entrance conveyor to the conveyor on the second conveyor line. The weighing machine and the second labeler are provided on the second conveyor line; The sealing device further includes a diverting package detector and a diverting control baffle provided at the end of the first conveyor line; The diverting package detector is configured to detect the number of packages conveyed from the conveyor at the end of the first conveyor line to the conveyor on the second conveyor line, and generate a diverting package signal for each detected package; The control unit controls the conveyor at the end of the first conveyor line to alternately convey packages to the conveyor on the second conveyor line according to the diverting package signal, and controls the raising and lowering state of the diverting control baffle.

15. The system according to any one of claims 1 to 10, characterized in that, The control unit extracts the display item from the data information according to the preset display item, and controls the second labeler to display the display item on the second label, wherein the display item at least includes the operator information of the sealing device, the information of the sealing device, the production information of the package, and the compliance verification result.

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