Method and system for preventing wrong-box association of two-dimensional code associated cigarettes

Abstract

The invention discloses a method and system for preventing wrong box association of two-dimensional code associated cigarettes, and belongs to the technical field of cigarette production, and the method comprises the following steps: verifying small box two-dimensional code information in a two-dimensional code association system; when wrong two-dimensional code information is found, a programmable logic controller (PLC) is used for controlling and triggering a small box detecting and removing device to perform removing operation; after wrong small boxes are removed, the cigarette supplementing operation can be automatically carried out; on the belt for arranging the small boxes into the strip, the two-dimensional code information of the upper small box and the lower small box is verified again, it can be further ensured that the two-dimensional code of each small box in the cigarette carton is correct, and the problem of wrong box association is avoided. According to the method, through verification and removal operation of multiple steps, the problem of wrong-box association of the two-dimensional code associated cigarette cartons is effectively prevented, the accuracy and efficiency in the tobacco product packaging process are improved, and the product quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette production, and more specifically, to a method and system for preventing a two-dimensional code from being associated with a wrong cigarette box. Background Art

[0002] With the advancement of science and technology and the digital transformation of the tobacco industry, the QR code association system has been widely used in the tobacco industry. This system realizes the tracking, management and anti-counterfeiting of product information by scanning and identifying the QR code on the product. In the cigarette production process, the QR code association system is particularly important. It ensures that every box and every cigarette can be accurately tracked and identified, thereby improving the quality and safety of the product. Various cigarette factories have deployed box-bar QR code association devices on packaging machines. These devices can automatically scan and identify the QR codes on small boxes and cigarette cartons during the cigarette packaging process to ensure the correct association between them. However, in practical applications, this system also faces some challenges.

[0003] Among them, the wrong association of cigarette cartons with boxes is a more prominent problem. The so-called wrong association of cigarette cartons with boxes refers to the fact that during the cigarette packaging process, due to various reasons (such as QR code scanning errors, equipment failures, human operating errors, etc.), the QR code association between the cigarette cartons and the small boxes is incorrect. This error not only affects the quality and safety of the product, but also brings unnecessary economic losses to the cigarette factory.

[0004] To sum up, how to identify missing or wrong boxes in the cigarette production process and remove them and issue early warnings is an urgent problem that needs to be solved. Summary of the invention

[0005] One object of the present invention is to provide a method and system for preventing QR code association with wrong cigarette cartons and boxes, so as to solve the problem that errors occur in the QR code association between cigarette cartons and small boxes, and the situation of missing boxes and wrong boxes cannot be identified during the cigarette production process, affecting the quality and safety of the product.

[0006] According to a first aspect of the present invention, there is provided a method for preventing a QR code from being associated with a wrong cigarette carton, comprising the following steps:

[0007] Step 1, collecting the QR code information of the small box in the small box cigarette replenishment turntable, and transmitting the collected QR code information of the small box to the QR code association system;

[0008] Step 2, judging whether the small box QR code information is incorrect through the QR code association system, if yes, sending a first error signal to the programmable logic controller of the packaging machine, if no, returning to step 1;

[0009] Step 3, after receiving the first error signal, the programmable logic controller immediately triggers the first rejection instruction of the small box detection and rejection device, and the small box detection and rejection device rejects the small box with errors from the production line according to the first rejection instruction of the programmable logic controller;

[0010] Step 4, after the wrong small box is removed, the programmable logic controller controls the cigarette replenishment operation and reads the QR code information of the newly replenished small box;

[0011] Step 5, after the QR code information of the newly added small box is read successfully, the newly added small box is arranged into the cigarette carton sequence and pushed onto the belt for arranging small boxes into strips;

[0012] Step 6, determining whether the QR codes of the upper and lower small boxes on the belt where the small boxes are arranged are wrong, if so, generating a second error signal, and feeding back the second error signal to the QR code association system;

[0013] Step 7, after receiving the feedback of the second error signal, the two-dimensional code association system sends a missing box / wrong box signal to the programmable logic controller again, and after receiving the signal, the programmable logic controller sends a second rejection instruction to the cigarette strip rejection device of the packaging machine;

[0014] Step 8: The cigarette carton rejecting device rejects the cigarette carton with missing / wrong boxes from the production line according to the second rejecting instruction of the programmable logic controller.

[0015] Optionally, in step 2, the read small box QR code information is sent to the QR code association system, and the QR code association system has a database inside for storing and defining valid small box QR code information formats, ranges and standards;

[0016] The QR code association system compares the read small box QR code information with the information in the database;

[0017] If the read small box QR code information does not match the information in the database, it is determined that the read small box QR code information is incorrect, where the error types include but are not limited to: missing QR code, incomplete information, incorrect format, and mismatch with the expected batch or product.

[0018] Optionally, the two-dimensional code association system is connected to the programmable logic controller of the packaging machine via a network connection device, and the network connection device includes but is not limited to network connection via Ethernet and serial port communication.

[0019] Optionally, in step 4, it is first identified whether there are spare small boxes inside the small box cigarette replenisher. If so, the small boxes are directly added to the production line. If not, the programmable logic controller triggers an alarm signal to notify the small box cigarette replenisher that there are insufficient small boxes inside and they need to be replenished.

[0020] Optionally, in step 8, while the problematic cigarette cartons are being removed, an alarm signal is sent out through the QR code association system to prompt the operator to perform subsequent manual processing.

[0021] According to a second aspect of the present invention, there is provided a system for preventing a QR code from being associated with a wrong cigarette carton, comprising a first code reading device, a small box detection and rejection device, a second code reading device, a third code reading device, a cigarette carton rejection device, a QR code association system, a programmable logic controller, a small box cigarette replenisher, a small box cigarette replenisher turntable, and a belt on which small boxes are arranged in strips; wherein the programmable logic controller is respectively connected to the small box detection and rejection device, the cigarette carton rejection device, and the small box cigarette replenisher through electrical lines; the QR code association system is connected to the first code reading device, the second code reading device, and the third code reading device through a wired or wireless manner; the small box cigarette replenisher turntable is physically adjacent to the first code reading device; the small box cigarette replenisher is physically adjacent to the second code reading device; and the third code reading device is located on the side of the belt on which small boxes are arranged in strips.

[0022] Optionally, the two-dimensional code association system is communicatively connected to the programmable logic controller via a network connection device.

[0023] Optionally, the third code reading device has two independent built-in lenses, each lens is used to read the QR code information of a small box and capture the QR code images of the upper and lower small boxes arranged on the belt.

[0024] The method and system for preventing the wrong association of a QR code with a cigarette carton and a cigarette box disclosed in the present invention have the following technical effects:

[0025] By verifying the QR code information of the small box in the QR code association system, the wrong QR code information can be found in time to avoid the wrong small box from flowing into the subsequent production process; when the wrong QR code information is found, the small box detection and rejection device can be immediately triggered by the programmable logic controller to perform the rejection operation, and the wrong small box can be quickly eliminated; after the wrong small box is rejected, the cigarette replenishment operation can be automatically performed; on the belt where the small boxes are arranged in strips, the QR code information of the upper and lower small boxes is verified again, which can further ensure that the QR code of each small box in the cigarette strip is correct, avoiding the problem of wrong box association. According to the instruction of the programmable logic controller, the cigarette strip rejection device can accurately reject the cigarette strip with missing box / wrong box from the production line. The present invention effectively prevents the problem of wrong box association of QR code-associated cigarette strips through multiple steps of verification and rejection operations, improves the accuracy and efficiency of the tobacco product packaging process, and ensures the quality of the product.

[0026] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0028] Figure 1 A schematic flow chart of a method for preventing a QR code from being associated with a wrong cigarette carton provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of a system for preventing a QR code from being associated with the wrong cigarette carton or box provided by an embodiment of the present invention.

[0030] The following are marked in the figure:

[0031] 1. First code reading device; 2. Small box detection and rejection device; 3. Second code reading device; 4. Third code reading device; 5. Cigarette strip rejection device; 6. QR code association system; 7. Programmable logic controller; 8. Network connection device; 9. Small box cigarette replenisher; 10. Small box cigarette replenishment turntable; 11. Small boxes are arranged into a belt. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] In existing production, during the cigarette packaging process, due to various reasons (such as QR code scanning errors, equipment failures, human operational errors, etc.), errors occur in the QR code association between the cigarette cartons and the small boxes. This error not only affects the quality and safety of the product, but also brings unnecessary economic losses to the cigarette factory. The present invention verifies the QR code information of the small box in the QR code association system, and after the small boxes are arranged on a belt, the QR codes of the upper and lower small boxes are verified again. The programmable logic controller controls the cigarette cartons rejection device to accurately reject the missing / wrong boxes of cigarette cartons from the production line. Through multiple steps of verification and rejection operations, the problem of QR code association with wrong boxes of cigarette cartons is effectively prevented.

[0037] The present invention proposes an embodiment of a method for preventing a QR code from being associated with a wrong cigarette box. Specifically, Figure 1 As shown, the following steps are included:

[0038] Step 1, collect the QR code information of the small box in the small box cigarette replenishment turntable, and transmit the collected small box QR code information to the QR code association system; wherein, the small box cigarette replenishment turntable is an automated equipment used to quickly and accurately process and distribute tobacco products packaged in small boxes. The small box cigarette replenishment turntable is composed of multiple stations, each of which can be placed with a small box, and automatic operation is achieved through rotation and movement. The QR code association system is a data processing platform for receiving, storing and managing QR code information transmitted from various collection points. The QR code association system is also connected to the company's production management system, inventory management system or quality traceability system. The collected small box QR code information is transmitted to the QR code association system via wired or wireless methods (such as Ethernet, Wi-Fi, Bluetooth, etc.).

[0039] Step 2, judging whether the small box QR code information is incorrect through the QR code association system, if yes, sending a first error signal to the programmable logic controller of the packaging machine, if no, returning to step 1;

[0040] It should be noted that in step 2, the read small box QR code information is sent to the QR code association system, and the QR code association system has a database inside for storing and defining valid small box QR code information formats, ranges and standards;

[0041] The QR code association system compares the read QR code information of the small box with the information in the database;

[0042] If the read small box QR code information does not match the information in the database, it is determined that the read small box QR code information is incorrect, where the error types include but are not limited to: missing QR code, incomplete information, incorrect format, and mismatch with the expected batch or product.

[0043] Step 3, after receiving the first error signal, the programmable logic controller immediately triggers the first rejection instruction of the small box detection and rejection device, and the small box detection and rejection device rejects the small box with errors from the production line according to the first rejection instruction of the programmable logic controller; wherein, after receiving the error signal, the PLC will process it according to the preset program logic, including parsing the signal content, judging the error type, determining the error position, etc. Specifically, the PLC will identify the association between the error signal and the small box QR code information, and determine the need to trigger the first rejection instruction of the small box detection and rejection device, and the content of the first rejection instruction includes the position of the small box to be rejected, the time point of rejection, the method of rejection, etc. On the other hand, the small box detection and rejection device is a device for detecting and rejecting unqualified products on an automated production line, including sensors, actuators, control systems, etc. The rejected erroneous small boxes are collected in a designated container for subsequent analysis and processing. The present invention can timely discover and process erroneous small boxes, avoid unqualified products from entering the market, and ensure product quality.

[0044] Step 4, after the wrong small box is removed, the programmable logic controller controls the cigarette replenishment operation and reads the QR code information of the newly replenished small box;

[0045] It should be noted that after the wrong small box is removed, a vacant position will appear on the production line, and a new, qualified small box needs to be added to maintain the continuous operation of the production line. The PLC recognizes the need for cigarette replenishment through its internal logic or external sensors (such as vacancy detection sensors on the production line). The PLC checks whether there are spare small boxes inside the small box cigarette replenisher by sending a signal to the small box cigarette replenisher or reading its status information. Among them, the sensor is used to detect whether there are small boxes inside the small box cigarette replenisher, and the counter is used to record the number of small boxes in the cigarette replenisher. Based on the inspection results, the PLC determines whether there are enough small boxes inside the small box cigarette replenisher to replenish the production line.

[0046] First, identify whether there are spare small boxes inside the small box smoke replenisher. If there are, control the actuator (such as motor, cylinder, etc.) of the small box smoke replenisher to take out the spare small box from the small box smoke replenisher and add it to the vacant position of the production line. If not, the programmable logic controller triggers an alarm signal to notify the small box smoke replenisher that the small box inside is insufficient and needs to be replenished. Among them, the alarm signal is issued through the indicator light, buzzer or other alarm equipment on the production line. At the same time, the PLC also sends the alarm information to the host computer or monitoring system for remote monitoring and recording. When the operator notices the alarm signal, they will go to the location of the smoke replenisher, check the internal status of the small box smoke replenisher, and replenish enough small boxes. After replenishing enough small boxes, the operator sends a recovery signal through the PLC or system interface to restart the smoke replenishment operation and resume the continuous operation of the production line. At the same time, the PLC will update its internal status information to reflect the change in the number of small boxes in the small box smoke replenisher.

[0047] Step 5: After the QR code information of the newly added small box is read successfully, the newly added small box is arranged in the cigarette carton sequence and pushed onto the belt on which the small boxes are arranged in strips; wherein the QR code information of the newly added small box includes data such as the number of the small box, production date, batch number, etc. The read QR code information is compared with the preset database to verify its correctness and completeness. If the QR code information of the small box is read successfully and correctly, the next step will be executed; if the information reading fails or there is an error, an alarm will be issued.

[0048] Step 6, determine whether the two-dimensional codes of the upper and lower small boxes on the belt where the small boxes are arranged are wrong. If so, generate a second error signal and feed the second error signal back to the two-dimensional code association system; it should be noted that the present invention can simultaneously read the two-dimensional code information on the two adjacent small boxes (i.e., the upper and lower small boxes) on the belt where the small boxes are arranged. This double-package code reading design enables the code reader to complete the information reading of the two small boxes in one scan, greatly improving the detection efficiency. By comparing the read two-dimensional code information with the database, the code reader can determine whether there is a wrong box in the upper and lower small boxes. The wrong box includes but is not limited to the number, batch or production date of the small box not being consistent with the expectation, or the arrangement order of the small box is wrong. Once the wrong box is detected, the code reader will immediately generate an error signal and mark it as a "wrong box signal", and the wrong box signal is sent to the two-dimensional code association system. In addition to the wrong box detection, the code reader determines whether there is a missing box through the double-package code reading function. If the code reader only reads one of the two two-dimensional codes at the position where the two two-dimensional codes are expected to be read, or no two-dimensional code information is read at all, then it can be determined that there is a missing box.

[0049] Step 7, after receiving the feedback of the second error signal, the QR code association system sends a missing box / wrong box signal to the programmable logic controller again. After receiving the signal, the programmable logic controller sends a second rejection instruction to the cigarette strip rejection device of the packaging machine;

[0050] Step 8: The cigarette carton rejection device rejects the cigarette carton with missing / wrong boxes from the production line according to the second rejection instruction of the programmable logic controller. After the rejection operation is completed, the cigarette carton rejection device sends a feedback signal to the PLC to confirm that the rejection operation has been completed. After receiving this feedback signal, the PLC will update its internal state and send a confirmation signal to the QR code association system to indicate that the error has been processed.

[0051] In the embodiment of the present invention, in step 8, while the problematic cigarette cartons are being removed, an alarm signal is sent out through the QR code association system to prompt the operator to perform subsequent manual processing.

[0052] In an embodiment of the present invention, the QR code association system is connected to the programmable logic controller of the packaging machine via a network connection device, and the network connection device includes but is not limited to network connection via Ethernet and serial port communication.

[0053] The present invention also proposes a system for preventing a QR code from being associated with a wrong cigarette box. Figure 2 As shown, specifically, it includes a first code reading device 1, a small box detection and rejection device 2, a second code reading device 3, a third code reading device 4, a cigarette strip rejection device 5, a two-dimensional code association system 6, a programmable logic controller 7, a small box cigarette replenisher 9, a small box cigarette replenisher turntable 10, and a belt 11 on which small boxes are arranged in strips; wherein the programmable logic controller 7 is respectively connected to the small box detection and rejection device 2, the cigarette strip rejection device 5, and the small box cigarette replenisher 9 through electrical circuits; the two-dimensional code association system 6 is connected to the first code reading device 1, the second code reading device 3, and the third code reading device 4 through wired or wireless means; the small box cigarette replenisher turntable 10 is physically adjacent to the first code reading device 1; the small box cigarette replenisher 9 is physically adjacent to the second code reading device 3; and the third code reading device 4 is located on the side of the small box arranged in strips belt 11. By way of example, the first code reading device 1, the second code reading device 3, and the third code reading device 4 are respectively configured as Figure 2 As shown in the small box sequence barcode reader, small box detection and rejection device, and small box smoke replenishment barcode reader.

[0054] It should be noted that the small box sequence code reader 1 is used to collect the small box two-dimensional code information in the small box cigarette replenishment turntable 10, and transmit the collected small box two-dimensional code information to the two-dimensional code association system 6; the two-dimensional code association system 6 determines whether the small box two-dimensional code information is incorrect, if so, sends a first error signal to the programmable logic controller 7 of the packaging machine, if not, returns to step 1; after receiving the first error signal, the programmable logic controller 7 immediately triggers the first rejection instruction of the small box detection and rejection device 2, and the small box detection and rejection device 2 sends a first error signal to the programmable logic controller 7 of the packaging machine according to the error signal. The first rejection instruction of the programmable logic controller 7 removes the small box with errors from the production line; after the erroneous small box is rejected, the programmable logic controller 7 controls the cigarette replenishment operation and reads the two-dimensional code information of the newly added small box through the small box replenishment code reader 3; after the two-dimensional code information of the newly added small box is successfully read by the small box replenishment code reader 3, the newly added small box is arranged in the cigarette carton sequence and pushed onto the belt 11 where the small boxes are arranged in strips; the small box error box missing box detection code reader 4 determines the upper and lower small boxes (such as Figure 2 The system detects whether the two-dimensional codes of A1 and A2, A3 and A4, A5 and A6, A7 and A8, A9 and A10 in the packaging machine are correct. If so, a second error signal is generated and the second error signal is fed back to the two-dimensional code association system 6; after receiving the feedback of the second error signal, the two-dimensional code association system 6 again sends a missing box / wrong box signal to the programmable logic controller 7. After receiving the signal, the programmable logic controller 7 sends a second rejection instruction to the cigarette carton rejection device 5 of the packaging machine; the cigarette carton rejection device 5 rejects the cigarette carton with missing box / wrong box from the production line according to the second rejection instruction of the programmable logic controller 7.

[0055] In the embodiment of the present invention, the two-dimensional code association system 6 is communicatively connected with the programmable logic controller 7 via a network connection device 8 .

[0056] In the embodiment of the present invention, the third code reading device 4 has two independent built-in lenses, each lens is used to read the two-dimensional code information of a small box and capture the two-dimensional code images of the upper and lower small boxes arranged on the belt 11.

[0057] It should be noted that the information interaction, execution process and other contents between the above-mentioned devices are based on the same concept as the method embodiment of the present application, and are a system corresponding to the above-mentioned method for preventing the association of QR codes with the wrong cigarette boxes. All implementation methods in the above-mentioned method embodiment are applicable to the embodiments of the system. Its specific functions and technical effects can be found in the method embodiment part, which will not be repeated here.

[0058] The present invention has a real-time error detection and rejection mechanism to ensure that only qualified small boxes can enter the subsequent packaging process, and ensure that the replenished small boxes are also strictly verified by the QR code, which not only ensures the accuracy of the replenished cigarettes, but also further reduces the risk of wrong boxes through secondary verification. This comprehensive detection mechanism ensures that the cigarette packs finally packaged into strips are complete and correct. When the system detects serious errors or abnormal conditions that cannot be handled automatically, the QR code association system will sound an alarm and prompt the operator to handle it manually. It ensures that even if the automatic processing fails, the problem can be solved through manual intervention, thereby ensuring the continuity and stability of the production line and reducing the occurrence of quality accidents in the production process.

[0059] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A method for preventing a QR code from being associated with a wrong cigarette carton, characterized in that: The following steps are involved: Step 1, collecting the QR code information of the small box in the small box cigarette replenishment turntable, and transmitting the collected QR code information of the small box to the QR code association system; Step 2, judging whether the small box QR code information is incorrect through the QR code association system, if yes, sending a first error signal to the programmable logic controller of the packaging machine, if no, returning to step 1; Step 3, after receiving the first error signal, the programmable logic controller immediately triggers the first rejection instruction of the small box detection and rejection device, and the small box detection and rejection device rejects the small box with errors from the production line according to the first rejection instruction of the programmable logic controller; Step 4, after the wrong small box is removed, the programmable logic controller controls the cigarette replenishment operation and reads the QR code information of the newly replenished small box; Step 5, after the QR code information of the newly added small box is read successfully, the newly added small box is arranged into the cigarette carton sequence and pushed onto the belt for arranging small boxes into strips; Step 6, determining whether the QR codes of the upper and lower small boxes on the belt where the small boxes are arranged are wrong, if so, generating a second error signal, and feeding back the second error signal to the QR code association system; Step 7, after receiving the feedback of the second error signal, the two-dimensional code association system sends a missing box / wrong box signal to the programmable logic controller again, and after receiving the signal, the programmable logic controller sends a second rejection instruction to the cigarette strip rejection device of the packaging machine; Step 8: the cigarette carton rejecting device rejects the cigarette carton with missing / wrong boxes from the production line according to the second rejecting instruction of the programmable logic controller.

2. The method for preventing the association of a QR code with a wrong cigarette box according to claim 1, characterized in that: In step 2, the read small box two-dimensional code information is sent to the two-dimensional code association system, and the two-dimensional code association system has a database inside for storing and defining valid small box two-dimensional code information formats, ranges and standards; The QR code association system compares the read small box QR code information with the information in the database; If the read small box QR code information does not match the information in the database, it is determined that the read small box QR code information is incorrect, where the error types include but are not limited to: missing QR code, incomplete information, incorrect format, and mismatch with the expected batch or product.

3. The method for preventing the association of a QR code with a wrong cigarette carton according to claim 1, characterized in that: The two-dimensional code association system is connected to the programmable logic controller of the packaging machine via a network connection device, and the network connection device includes but is not limited to network connection via Ethernet and serial port communication.

4. The method for preventing the association of a QR code with a wrong cigarette carton according to claim 1, characterized in that: In step 4, it is first identified whether there are spare small boxes inside the small box cigarette replenisher. If so, the small boxes are directly added to the production line. If not, the programmable logic controller triggers an alarm signal to notify the small box cigarette replenisher that there are insufficient small boxes inside and they need to be replenished.

5. The method for preventing the association of a QR code with a wrong cigarette carton according to claim 1, characterized in that: In step 8, while the problematic cigarette cartons are being removed, an alarm signal is sent out through the QR code association system to prompt the operator to perform subsequent manual processing.

6. A system for preventing QR codes from being associated with wrong cigarette cartons, characterized in that: The invention comprises a first code reading device (1), a small box detection and rejection device (2), a second code reading device (3), a third code reading device (4), a cigarette strip rejection device (5), a two-dimensional code association system (6), a programmable logic controller (7), a small box cigarette replenisher (9), a small box cigarette replenisher turntable (10), and a belt for arranging small boxes into strips (11); wherein the programmable logic controller (7) is respectively connected to the small box detection and rejection device (2), the cigarette strip rejection device (5), and the small box cigarette replenisher (9) through electrical circuits; the two-dimensional code association system (6) is connected to the first code reading device (1), the second code reading device (3), and the third code reading device (4) through wired or wireless means; the small box cigarette replenisher turntable (10) is physically adjacent to the first code reading device (1); the small box cigarette replenisher (9) is physically adjacent to the second code reading device (3); and the third code reading device (4) is located on the side of the belt for arranging small boxes into strips (11).

7. The system for preventing the association of two-dimensional codes with wrong cigarette cartons according to claim 6, characterized in that: The two-dimensional code association system (6) is communicatively connected to the programmable logic controller (7) via a network connection device (8).

8. The system for preventing the association of two-dimensional codes with wrong cigarette cartons according to claim 6, characterized in that: The third code reading device (4) has two independent lenses built in, each lens is used to read the two-dimensional code information of a small box, and capture the two-dimensional code images of the upper and lower small boxes arranged on the belt (11).

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