A tobacco package two-dimensional code association method and system

Abstract

This invention discloses a method for associating QR codes on tobacco packaging, comprising: determining the operating status of upstream and downstream equipment; if the upstream and downstream equipment is shut down, proceeding to the tobacco dispensing or storage process according to the abnormal status; if the upstream and downstream equipment is operating normally, proceeding to the normal production process; the normal production process includes: first acquiring QR code data for a carton of cigarettes and storing it in a stack area; second acquiring QR code data for a carton of cigarettes, comparing and matching the data acquired in the two acquisitions, and storing the matching data in a first data stack area; in subsequent processes, the data in the first data stack area is sequentially passed through a second data stack area, a first buffer stack area, a third data stack area, a second buffer stack area, and a fourth data stack area, and then stacked forward into the third buffer stack area; finally, reading the QR code of a package of cigarettes, and if it is confirmed that the data in each stack area is consistent, associating the QR code of the package of cigarettes with the QR code data in the third buffer stack area. This invention achieves a high success rate in QR code association.

Description

Technical Field

[0001] This invention relates to the field of cigarette production, and more specifically, to a method and system for associating QR codes on tobacco packaging. Background Technology

[0002] Linking cigarette cartons with the individual cigarettes packaged inside is a current development requirement in the tobacco production industry. The YP18D carton sealing machine is considered relatively advanced nationwide. This model features flexible operation, capable of simultaneously producing 6 channels and 3 product specifications. It can receive 6 cartons of cigarettes at once, simultaneously handling soft-pack, hard-pack, and medium-sized cigarette products in the workshop. However, integrating this new YP18D machine with the "box condition" system project in the workshop presented certain challenges.

[0003] A packing machine is a machine that packages cigarettes into cartons, while the "condition" association item uses QR code technology to associate the QR code on the carton of cigarettes with the QR code on the carton of cigarettes it is packaged into.

[0004] The YP18D packing machine lacks a dedicated "box condition" deployment plan, resulting in a low "condition" association rate. Currently, YP11 or YP18 packing machines, which produce single-product cigarettes, are widely used in cigarette factories nationwide. The production process for single-product packing machines is relatively simple: after the cigarette cartons are stacked, they immediately enter the packing stage. The "condition" association plan only requires reading the QR code of the cigarette cartons during the stacking process on the packing machine. After packing, the QR code of the cigarette carton is associated with the QR code of the cigarette cartons scanned during the stacking process, thus achieving QR code association between cigarette cartons and cigarette cartons.

[0005] After stacking is completed, the YP18D cigarettes, due to their flexible production characteristics of multiple channels and product specifications, may store multiple packs of cigarette QR code data simultaneously during the stacking process. The YP18D's single gantry crane channel design cannot achieve one-to-one box sealing for each channel. The solution of directly connecting the QR codes of stacked packs of cigarettes to the QR codes of the individual cigarette packs at the No. 1 coding station using the single-product packing machine cannot avoid the risk of association errors. Furthermore, the YP18D involves key processes such as stacking, gantry crane transportation, flaring and boxing, glue sealing, and No. 1 coding between pack stacking and finished product processing. The process flow is long and prone to QR code loss or errors.

[0006] According to the on-site test results of the YP18D case packer's "condition" association system, the success rate of applying the "condition" association scheme of a single-specification case packer to this model was only 85%. The low condition association rate is far from meeting the company's requirement that the success rate of the case packer's condition system association be above 99%. Summary of the Invention

[0007] To address the low success rate of existing tobacco packaging QR code association methods, this invention provides a tobacco packaging QR code association method and system. The technical solution adopted by this invention is as follows:

[0008] The first aspect of this invention provides a method for associating QR codes on tobacco packaging, comprising:

[0009] Determine the operating status of the upstream and downstream equipment of the case packer;

[0010] If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state.

[0011] If both upstream and downstream equipment are in normal condition, then proceed with the normal production process;

[0012] The normal production process includes:

[0013] During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area.

[0014] In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area.

[0015] During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area.

[0016] In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area.

[0017] During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette pack in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area.

[0018] Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

[0019] As a preferred solution, the method for acquiring the QR code data of cigarette cartons for the first time during the stacking process of the packing machine, and packaging and storing the QR code data of the cigarette cartons into their corresponding channel data stack area includes:

[0020] During the stacking process of the packing machine, the barcode reader is triggered by the stacking signal to scan the barcodes and obtain the QR code data. When the stack is full, the QR code data of the barcodes is packaged and stored in the corresponding channel data stack area according to the full stack signal.

[0021] As a preferred solution, in the gantry crane transportation process, the method for acquiring the QR code data of the cigarette packs a second time, comparing and matching the second acquired QR code data with the first acquired QR code data, and storing the matching QR code data into the first data stack area includes:

[0022] During the gantry crane transportation process, QR code data is obtained by scanning the cigarette packs on the gantry crane transportation channel. The second batch of QR code data is compared and matched with the first batch of QR code data. The matching QR code data is retrieved and stored in the first data stack area.

[0023] As a preferred embodiment, in the cigarette pushing process, the method for advancing the QR code data of the cigarette packs from the first data stack area into the first buffer stack area after passing through the second data stack area, based on the change in the cigarette pushing signal, includes:

[0024] Based on the rising edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the first data stack area is moved into the second data stack area; based on the falling edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the second data stack area is pushed forward into the first buffer stack area.

[0025] As a preferred embodiment, in the cigarette box adhesive spraying process, the method for advancing the QR code data of the cigarette packs from the first buffer stack to the second buffer stack after passing through the third data stack based on changes in the cigarette box adhesive spraying signal includes:

[0026] Based on the rising edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the first buffer stack area is moved into the third data stack area; based on the falling edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the third data stack area is pushed forward into the second buffer stack area.

[0027] As a preferred solution, in the cigarette box unloading process, the method for advancing the QR code data of the cigarette packs from the second buffer stack to the third buffer stack via the fourth data stack based on changes in the cigarette box unloading signal includes:

[0028] Based on the rising edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the second buffer stack area is moved into the fourth data stack area; based on the falling edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the fourth data stack area is pushed forward into the third buffer stack area.

[0029] As a preferred embodiment, the abnormal state includes upstream equipment shutdown and downstream equipment shutdown;

[0030] When the upstream equipment stops, the smoke discharge process of the bar storage device begins;

[0031] When downstream equipment stops, the smoke storage process begins in the bar storage unit.

[0032] As a preferred embodiment, the smoke discharge process of the storage device includes:

[0033] When the upstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first storage stack area is stacked into the first data stack area according to the upstream stop signal and the cigarette stack pusher signal of the storage device;

[0034] The QR code data of the first data stack area is incorporated into the normal process, and the cigarette pushing process, the cigarette box glue spraying process, the cigarette box unloading process, and the QR code association process are performed in sequence. At the same time, after the QR code data of the first data stack area is removed, the QR code data of the cigarettes in the fifth storage stack area is stacked into the fourth storage stack area, the QR code data of the cigarettes in the fourth storage stack area is stacked into the third storage stack area, the QR code data of the cigarettes in the third storage stack area is stacked into the second storage stack area, and the QR code data of the cigarettes in the second storage stack area is stacked into the first storage stack area.

[0035] Determine the operating status of the upstream equipment. If it is still in a shutdown state, continue the smoke discharge process of the bar storage device. If the upstream equipment is operating normally, proceed with the normal production process.

[0036] As a preferred embodiment, the smoke storage process of the bar holder includes:

[0037] When the downstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first data stack area is stacked into the first storage stack area according to the downstream stop signal and the cigarette stack pusher signal of the storage device;

[0038] Simultaneously, the QR code data of cigarettes in the first storage stack area is overlaid into the second storage stack area, the QR code data of cigarettes in the second storage stack area is overlaid into the third storage stack area, the QR code data of cigarettes in the third storage stack area is overlaid into the fourth storage stack area, and the QR code data of cigarettes in the fourth storage stack area is overlaid into the fifth storage stack area.

[0039] Determine the operating status of the downstream equipment. If it is still in a shutdown state, continue the smoke storage process of the bar storage device. If the downstream equipment is operating normally, proceed with the normal production process.

[0040] A second aspect of the present invention provides a QR code association system for tobacco packaging. This system, which associates QR codes between stacked cartons and cartons of cigarettes in a packing machine, includes a memory and a processor. The memory includes a program for a method of associating QR codes between stacked cartons and cartons of cigarettes in a packing machine. When the processor executes the program for this method, it performs the following steps:

[0041] Determine the operating status of the upstream and downstream equipment of the case packer;

[0042] If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state.

[0043] If both upstream and downstream equipment are in normal condition, then proceed with the normal production process;

[0044] The normal production process includes:

[0045] During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area.

[0046] In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area.

[0047] During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area.

[0048] In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area.

[0049] During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette pack in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area.

[0050] Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

[0051] Compared with the prior art, the beneficial effects of this invention are:

[0052] 1. This invention refines the "condition" association process of the packing machine, and refines the association nodes between the cigarette stacking process and the QR code association process (the coding process of Project No. 1) according to the process flow, so as to achieve accurate storage and reading of cigarette QR code data.

[0053] 2. By setting up corresponding stack areas in different process stages, this invention ensures that the QR code data of each pack of cigarettes has a place to be stored, thus avoiding the problem of QR code data loss during the production process.

[0054] 3. This invention tracks and stores corresponding QR code information by tracking production signals during actual operation. In the automated production process, the QR code data of each cigarette pack will be updated synchronously with the production process at each step, ensuring the real-time accuracy of the QR code data and avoiding the problem of incorrect QR code data during the production process.

[0055] 4. This invention improves the accuracy of "conditional" association by performing consistency detection on the QR code data of each pack of cigarettes in each stack area, ensuring that the QR code of each pack of cigarettes accurately corresponds to the QR code of the cigarette carton in which it is located. Attached Figure Description

[0056] Figure 1 Here is a normal production flow diagram of a method for associating QR codes on tobacco packaging, as provided in Example 1;

[0057] Figure 2 This is a flowchart illustrating the cigarette dispensing process of a tobacco packaging QR code association method provided in Example 2.

[0058] Figure 3 Example 2 provides a flowchart of a tobacco storage device for a tobacco packaging QR code association method. Detailed Implementation

[0059] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention.

[0060] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0061] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0062] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The invention will be further described below with reference to the accompanying drawings and embodiments.

[0064] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0065] Example 1

[0066] Please refer to Figure 1 This embodiment provides a method for associating QR codes on tobacco packaging, including:

[0067] Determine the operating status of the upstream and downstream equipment of the case packer;

[0068] It should be noted that the case packing machine is specifically the YP18D case packing machine.

[0069] If both upstream and downstream equipment are in normal condition, then proceed with the normal production process;

[0070] The normal production process includes:

[0071] During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area.

[0072] In one specific embodiment, during the case packing machine stacking process, the method for first acquiring the QR code data of the cigarette packs and packaging and storing the QR code data of the cigarette packs into their corresponding channel data stack area includes:

[0073] During the stacking process of the packing machine, the barcode reader is triggered by the stacking signal to scan the barcodes and obtain the QR code data. When the stack is full, the QR code data of the barcodes is packaged and stored in the corresponding channel data stack area according to the full stack signal.

[0074] In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area.

[0075] In a specific embodiment, during the gantry crane transportation process, the method for acquiring the cigarette pack QR code data a second time, comparing and matching the second acquired cigarette pack QR code data with the first acquired cigarette pack QR code data, and storing the matching cigarette pack QR code data into the first data stack area includes:

[0076] During the gantry crane transportation process, QR code data is obtained by scanning the cigarette packs on the gantry crane transportation channel. The second batch of QR code data is compared and matched with the first batch of QR code data. The matching QR code data is retrieved and stored in the first data stack area.

[0077] During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area.

[0078] In one specific embodiment, during the cigarette pushing process, the method for advancing the QR code data of the cigarette packs from the first data stack area into the first buffer stack area after passing through the second data stack area, based on the change in the cigarette pushing signal, includes:

[0079] Based on the rising edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the first data stack area is moved into the second data stack area; based on the falling edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the second data stack area is pushed forward into the first buffer stack area.

[0080] In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area.

[0081] In one specific embodiment, during the cigarette box adhesive spraying process, the method for advancing the QR code data of the cigarette packs from the first buffer stack area into the second buffer stack area via the third data stack area based on changes in the cigarette box adhesive spraying signal includes:

[0082] Based on the rising edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the first buffer stack area is moved into the third data stack area; based on the falling edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the third data stack area is pushed forward into the second buffer stack area.

[0083] During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette pack in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area.

[0084] In one specific embodiment, during the cigarette box unloading process, the method for advancing the QR code data of the cigarette packs from the second buffer stack area into the third buffer stack area via the fourth data stack area based on changes in the cigarette box unloading signal includes:

[0085] Based on the rising edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the second buffer stack area is moved into the fourth data stack area; based on the falling edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the fourth data stack area is pushed forward into the third buffer stack area.

[0086] Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

[0087] Specifically, in the QR code association process, a sensor is set up at the coding station of Project No. 1 to trigger the reading of the QR code of the cigarette pack. After confirming that the QR code data of the cigarette packs in each stack area are consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

[0088] Example 2

[0089] Please refer to Figure 2 as well as Figure 3 This embodiment provides a method for associating QR codes on tobacco packaging, including:

[0090] Determine the operating status of the upstream and downstream equipment of the case packer;

[0091] It should be noted that the case packing machine is specifically the YP18D case packing machine.

[0092] If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state.

[0093] It should be noted that the abnormal conditions include both upstream equipment shutdown and downstream equipment shutdown;

[0094] When the upstream equipment stops, the smoke discharge process of the bar storage device begins;

[0095] When downstream equipment stops, the smoke storage process begins in the bar storage unit.

[0096] Please refer to Figure 2 In one specific embodiment, the smoke discharge process of the storage device includes:

[0097] When the upstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first storage stack area is stacked into the first data stack area according to the upstream stop signal and the cigarette stack pusher signal of the storage device;

[0098] The QR code data of the first data stack area is incorporated into the normal process described in Example 1, and the cigarette pushing process, cigarette box glue spraying process, cigarette box unloading process, and QR code association process are performed in sequence. At the same time, after the QR code data of the first data stack area is removed, the QR code data of the cigarettes in the fifth storage stack area is stacked into the fourth storage stack area, the QR code data of the cigarettes in the fourth storage stack area is stacked into the third storage stack area, the QR code data of the cigarettes in the third storage stack area is stacked into the second storage stack area, and the QR code data of the cigarettes in the second storage stack area is stacked into the first storage stack area.

[0099] Determine the operating status of the upstream equipment. If it is still in a shutdown state, continue the smoke discharge process of the bar storage device. If the upstream equipment is operating normally, proceed with the normal production process described in Example 1.

[0100] Please refer to Figure 3 In one specific embodiment, the smoke storage process of the storage bar includes:

[0101] When the downstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first data stack area is stacked into the first storage stack area according to the downstream stop signal and the cigarette stack pusher signal of the storage device;

[0102] Simultaneously, the QR code data of cigarettes in the first storage stack area is overlaid into the second storage stack area, the QR code data of cigarettes in the second storage stack area is overlaid into the third storage stack area, the QR code data of cigarettes in the third storage stack area is overlaid into the fourth storage stack area, and the QR code data of cigarettes in the fourth storage stack area is overlaid into the fifth storage stack area.

[0103] Determine the operating status of the downstream equipment. If it is still in a shutdown state, continue the smoke storage process of the bar storage device. If the downstream equipment is operating normally, proceed with the normal production process described in Example 1.

[0104] Through the above improvements, when upstream and downstream shutdowns occur, this invention can track the pusher signal of the fuel dispenser to perform stacked storage inside the fuel dispenser, so that when the fuel dispenser stores or discharges smoke, it can store the QR code into the fuel dispenser stack area or accurately and smoothly integrate the QR code information in the stack area into the normal production process.

[0105] Example 3

[0106] This invention provides a tobacco packaging QR code association system. The system, which associates QR codes between stacked cartons and cartons of cigarettes in a packing machine, includes a memory and a processor. The memory contains a program for a method of associating QR codes between stacked cartons and cartons of cigarettes in a packing machine. When the processor executes this program, the following steps are implemented:

[0107] Determine the operating status of the upstream and downstream equipment of the case packer;

[0108] It should be noted that the case packing machine is specifically the YP18D case packing machine.

[0109] If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state.

[0110] If both upstream and downstream equipment are in normal condition, then proceed with the normal production process;

[0111] The normal production process includes:

[0112] During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area.

[0113] In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area.

[0114] During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area.

[0115] In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area.

[0116] During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette pack in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area.

[0117] Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

[0118] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for associating QR codes on tobacco packaging, characterized in that, include: Determine the operating status of the upstream and downstream equipment of the case packer; If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state. If both upstream and downstream equipment are in normal condition, then proceed with the normal production process; The normal production process includes: During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area. In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area. During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area. In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area. During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette packs in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area. Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

2. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, In the case packing machine stacking process, the method for acquiring the QR code data of cigarette packs for the first time and packaging and storing the QR code data of cigarette packs into their corresponding channel data stack area includes: During the stacking process of the packing machine, the barcode reader is triggered by the stacking signal to scan the barcodes and obtain the QR code data. When the stack is full, the QR code data of the barcodes is packaged and stored in the corresponding channel data stack area according to the full stack signal.

3. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, In the gantry crane transportation process, the method for acquiring the QR code data of cigarette cartons a second time, comparing and matching the second acquired QR code data with the first acquired QR code data, and storing the matching QR code data into the first data stack area includes: During the gantry crane transportation process, QR code data is obtained by scanning the cigarette packs on the gantry crane transportation channel. The second batch of QR code data is compared and matched with the first batch of QR code data. The matching QR code data is retrieved and stored in the first data stack area.

4. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, In the cigarette pushing process, based on the change in the cigarette pushing signal, the method for the QR code data of the cigarette packs in the first data stack area to be stacked into the first buffer stack area after passing through the second data stack area includes: Based on the rising edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the first data stack area is moved into the second data stack area; based on the falling edge of the push-cigarettes-in-box signal, the QR code data of the cigarette packs in the second data stack area is pushed forward into the first buffer stack area.

5. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, In the cigarette box adhesive spraying process, based on changes in the cigarette box adhesive spraying signal, the method for the QR code data of the cigarette packs in the first buffer stack area to be stacked into the second buffer stack area before passing through the third data stack area includes: Based on the rising edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the first buffer stack area is moved into the third data stack area; based on the falling edge of the cigarette box adhesive spraying signal, the QR code data of the cigarette packs in the third data stack area is pushed forward into the second buffer stack area.

6. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, In the cigarette box unloading process, based on changes in the cigarette box unloading signal, the method for advancing the QR code data of the cigarette packs from the second buffer stack to the third buffer stack via the fourth data stack includes: Based on the rising edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the second buffer stack area is moved into the fourth data stack area; based on the falling edge of the cigarette box unloading signal, the QR code data of the cigarette packs in the fourth data stack area is pushed forward into the third buffer stack area.

7. The method for associating QR codes on tobacco packaging according to claim 1, characterized in that, The abnormal conditions include upstream equipment shutdown and downstream equipment shutdown; When the upstream equipment stops, the smoke discharge process of the bar storage device begins; When downstream equipment stops, the smoke storage process begins in the bar storage unit.

8. The method for associating QR codes on tobacco packaging according to claim 7, characterized in that, The smoke discharge process of the storage device includes: When the upstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first storage stack area is stacked into the first data stack area according to the upstream stop signal and the cigarette stack pusher signal of the storage device; The QR code data of the first data stack area is incorporated into the normal production process, and the cigarette pushing process, the cigarette box glue spraying process, the cigarette box unloading process, and the QR code association process are performed in sequence. At the same time, after the QR code data of the first data stack area is removed, the QR code data of the cigarettes in the fifth storage stack area is stacked into the fourth storage stack area, the QR code data of the cigarettes in the fourth storage stack area is stacked into the third storage stack area, the QR code data of the cigarettes in the third storage stack area is stacked into the second storage stack area, and the QR code data of the cigarettes in the second storage stack area is stacked into the first storage stack area. Determine the operating status of the upstream equipment. If it is still in a shutdown state, continue the smoke discharge process of the bar storage device. If the upstream equipment is operating normally, proceed with the normal production process.

9. A method for associating QR codes on tobacco packaging according to claim 7, characterized in that, The smoke storage process of the bar holder includes: When the downstream cigarette conveying device of the packing machine stops, the QR code data of the cigarettes in the first data stack area is stacked into the first storage stack area according to the downstream stop signal and the cigarette stack pusher signal of the storage device; Simultaneously, the QR code data of cigarettes in the first storage stack area is overlaid into the second storage stack area, the QR code data of cigarettes in the second storage stack area is overlaid into the third storage stack area, the QR code data of cigarettes in the third storage stack area is overlaid into the fourth storage stack area, and the QR code data of cigarettes in the fourth storage stack area is overlaid into the fifth storage stack area. Determine the operating status of the downstream equipment. If it is still in a shutdown state, continue the smoke storage process of the bar storage device. If the downstream equipment is operating normally, proceed with the normal production process.

10. A tobacco packaging QR code association system, characterized in that, The tobacco packaging QR code association system includes a memory and a processor. The memory includes a program for a tobacco packaging QR code association method. When the program for the tobacco packaging QR code association method is executed by the processor, it performs the following steps: Determine the operating status of the upstream and downstream equipment of the case packer; If the upstream or downstream equipment is in an abnormal state, the process will proceed to either the smoke discharge process of the bar storage device or the smoke storage process of the bar storage device, depending on the abnormal state. If both upstream and downstream equipment are in normal condition, then proceed with the normal production process; The normal production process includes: During the stacking process of the packing machine, the QR code data of the cigarette pack is acquired for the first time, and the QR code data of the cigarette pack is packaged and stored in its corresponding channel data stack area. In the gantry crane transportation process, the second cigarette pack QR code data is obtained. The second obtained cigarette pack QR code data is compared and matched with the first obtained cigarette pack QR code data. The matching cigarette pack QR code data is stored in the first data stack area. During the cigarette pushing process, based on the change of the cigarette pushing signal into the box, the QR code data of the cigarette pack in the first data stack area is stacked into the first buffer stack area after passing through the second data stack area. In the process of applying adhesive to the cigarette box, according to the change of the adhesive application signal, the QR code data of the cigarette pack in the first buffer stack area is stacked into the second buffer stack area after passing through the third data stack area. During the cigarette box unloading process, according to the change of the cigarette box unloading signal, the QR code data of the cigarette packs in the second buffer stack area is stacked into the third buffer stack area after passing through the fourth data stack area. Finally, in the QR code association process, the QR code of the cigarette pack is read, and if the QR code data of the cigarette packs in each stack area is consistent, the QR code of the cigarette pack is associated with the QR code data of the third buffer stack area.

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