A cigarette rod flow monitoring and control device and method with self-repairing capability

Abstract

The present application belongs to the technical field of tobacco production control, and particularly relates to a cigarette flow monitoring and control device and method with self-repairing capability. In the device, the outlet of the high-position cigarette storage device is connected with the inlet of the cigarette appearance detection device through a cigarette conveying channel, a pneumatic device support is arranged near the inlet of the cigarette appearance detection device in the cigarette conveying channel, a pneumatic device is arranged on the pneumatic device support, a pneumatic brush is arranged below the pneumatic device, and a photoelectric sensor array is arranged in the cigarette conveying channel. An upper computer is connected with a PLC controller through an electric signal, and the high-position cigarette storage device, a conveying belt motor, the photoelectric sensor array and the pneumatic brush are all connected with the PLC controller through an electric signal. The technical scheme realizes flexible and smooth conveying of cigarettes between a cigarette packaging device and a cartoning machine, realizes real-time monitoring, and solves the problem that an operator cannot check the cigarette conveying flow in time.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tobacco production control, and particularly relates to a tobacco rod flow monitoring and control device and method with self-repairing capability. BACKGROUND

[0002] In a modernized tobacco production line, the tobacco rods formed by rolling and packaging are uniformly lifted and conveyed to a cartoning machine by a tobacco rod conveying chain plate 1 for cartoning packaging work. Generally, one cartoning machine can correspond to multiple packaging machine devices, and the tobacco rod packaging flow is as shown in Figure 1 .

[0003] Due to differences in production efficiency, speed, time, etc. of each packaging machine, the tobacco rod flow on the tobacco rod conveying chain plate 1 is also in real-time change. For example, when all corresponding packaging machine devices are in full-speed production state, the tobacco rod flow of the tobacco rod conveying chain plate will reach the maximum value. Therefore, a high-position tobacco rod storage device 2 is arranged before the entrance of the cartoning machine 7 to buffer the tobacco rods and prevent the occurrence of tobacco blockage. The stable release and storage capacity of the high-position tobacco rod storage device 2 directly affects the production efficiency and product quality, and the distribution of each detection device on the tobacco rod conveying channel is as shown in Figure 2 .

[0004] As shown in Figure 2 , the finished tobacco rods produced by the packaging machine enter the tobacco rod conveying channel 4 of the cartoning machine through the conveying chain plate 1, and then enter the cartoning machine 7 for cartoning packaging. At the entrance of the cartoning machine conveying channel, the high-position tobacco rod storage device 2 is installed to store or release the tobacco rods in the tobacco rod conveying channel 4 by using the mechanical gripper 3. At the same time, the tobacco rod appearance detection device 5 is installed on the tobacco rod conveying channel 4 of the cartoning machine to perform online quality detection and defect product rejection on the appearance quality of the tobacco rods, and the finished tobacco rods with qualified appearance quality enter the cartoning machine 7 to complete cartoning.

[0005] In the above production process, the tobacco rod appearance detection device 5, the high-position tobacco rod storage device 2, and the cartoning machine 7 are independent device systems. When the high-position tobacco rod storage device 2 releases the tobacco rods, a large number of tobacco rods are tightly together from the H height under the action of the belt and inertia and enter the area of the tobacco rod appearance detection device 5, which is easy to cause false detection of the tobacco rod appearance detection device 5. The continuous rejection of the rejection mechanism 6 is easily blocked, and the tobacco rods are easily damaged, which not only increases the energy consumption and downtime, affects the continuity and stability of the overall production line of the cartoning equipment, but also increases the risk of product quality.

[0006] The application discloses a cigarette packet conveying flow line and a cigarette packet conveying adjusting method. SUMMARY

[0007] The application aims to provide a cigarette rod flow monitoring and controlling device and method with self-repairing capability to solve the problems in the background art.

[0008] To achieve the above-mentioned purpose, the application is implemented by the following technical scheme:

[0009] A cigarette rod flow monitoring and controlling device with self-repairing capability comprises a high-position rod storage device, an outlet of the high-position rod storage device is connected with an entrance of a cigarette rod appearance detecting device through a cigarette rod conveying channel, a cigarette rod conveying belt is arranged in the cigarette rod conveying channel, and a conveying belt motor drives the cigarette rod conveying belt to move.

[0010] A pneumatic device support is arranged near the entrance of the cigarette rod appearance detecting device in the cigarette rod conveying channel, a pneumatic device is arranged on the pneumatic device support, a pneumatic brush is arranged below the pneumatic device, and the pneumatic brush is located above the cigarette rod conveying belt in the cigarette rod conveying channel.

[0011] A photoelectric sensor array is arranged in the cigarette rod conveying channel.

[0012] An upper computer and a PLC controller are connected through electric signals, and the high-position rod storage device, the conveying belt motor, the photoelectric sensor array and the pneumatic brush are all connected with the PLC controller through electric signals.

[0013] Further, the high-position rod storage device comprises a rod detecting sensor, and the rod detecting sensor is connected with the PLC controller through electric signals.

[0014] Further, the photoelectric sensor array comprises a first photoelectric switch arranged near the entrance of the cigarette rod appearance detecting device and a second photoelectric switch arranged near the outlet of the high-position rod storage device.

[0015] Further, the first photoelectric switch and the second photoelectric switch are both arranged on the bottom plate of the cigarette rod conveying channel.

[0016] Furthermore, the PLC controller and the optocouplers that cooperate with the first and second photoelectric switches respectively are all located in the electrical cabinet of the high-level storage device.

[0017] Furthermore, a rejection mechanism is provided between the outlet of the cigarette stick appearance inspection device and the inlet of the packing machine, and the rejection mechanism is electrically connected to the PLC controller.

[0018] A method for monitoring and controlling the flow rate of cigarette sticks with self-healing capability, utilizing any of the above-mentioned methods for monitoring and controlling the flow rate of cigarette sticks with self-healing capability, comprises the following steps:

[0019] S1. Determine if the sealing machine is started. If yes, the cigarette packs enter the sealing machine and proceed to step S2. If no, the high-level storage device is started to store the cigarette packs.

[0020] S2. Perform cigarette stick flow monitoring and analysis. If the cigarette stick flow is within the set range, proceed to step S3. If the cigarette stick flow is greater than the maximum value of the set range, proceed to step S5.

[0021] S3. Check if there is a set number of cigarette bars in the high-level storage device. If yes, proceed to step S4; otherwise, proceed to step S5.

[0022] S4. The high-level storage device releases cigarettes into the cigarette conveying channel and determines the instantaneous flow rate of the high-level storage device after releasing the cigarettes. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5.

[0023] S5. The control device is activated to control the cigarette bar flow rate and instantaneous flow rate within the set range.

[0024] Furthermore, the cigarette bar flow monitoring and analysis in steps S2 and S4 adopts the following steps:

[0025] S21. The first photoelectric switch collects the first photoelectric signal. If the first photoelectric signal is ≥ the first set threshold, it is determined that the cigarette stick flow rate has increased, and the process proceeds to step S22. Otherwise, it is determined that the cigarette stick flow rate is within the set range.

[0026] S22. The second photoelectric switch collects the second photoelectric signal. If the second photoelectric signal is greater than or equal to the second set threshold, it is determined that the cigarette stick flow rate is too high; otherwise, it is determined that the cigarette stick flow rate is too high.

[0027] Furthermore, the start-up of the control device in step S5 includes one or more of the following: start-up of the high-level bar storage device, start-up of the rejection mechanism optimized rejection strategy, start-up of the pneumatic brush, and start-up of the conveyor belt motor speed control.

[0028] Furthermore, in step S2, if the cigarette bar flow rate is greater than the maximum value of the set range, the control device is activated by one or more of the following: activation of the high-level storage device, activation of the optimized rejection strategy of the rejection mechanism, activation of the pneumatic brush, and activation of the conveyor belt motor speed control.

[0029] In step S4, if the instantaneous flow rate is greater than the maximum value of the set range, the control device is activated, including one or both of the following: pneumatic brush activation or optimized rejection strategy activation control of the rejection mechanism.

[0030] The beneficial effects of this invention are:

[0031] (1) The present invention can realize the flexible and stable transport of cigarette packs between the cigarette packaging equipment and the carton sealing machine.

[0032] (2) The present invention can solve the problem of human resource waste caused by manually checking the cigarette pack delivery.

[0033] (3) This device can monitor in real time after replacing manual labor, solving the problem that the operator cannot check the flow rate of the cigarette pack in time.

[0034] (4) This device can replace manual labor and avoid the risk of mechanical injury caused by operators handling mobile smoke sticks.

[0035] (5) This device can replace manual labor and avoid product quality risks caused by operators manually handling mobile cigarette bars, thereby improving product quality.

[0036] (6) This device has a simple structure, requires less investment, and can achieve better optimization results and improve production efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the cigarette packing process.

[0038] Figure 2 A simplified diagram of the cigarette bar operation and appearance inspection device within the conveying channel.

[0039] Figure 3 This is a schematic diagram of the cigarette strip flow monitoring device of the present invention.

[0040] Figure 4 This is a block diagram of the cigarette bar flow monitoring and control device of the present invention.

[0041] Figure 5 This is an isometric view of the cigarette bar flow monitoring and control device.

[0042] Figure 6 This is a top view of the cigarette bar flow monitoring and control device.

[0043] Figure 7 This is a system architecture diagram of the cigarette bar flow monitoring and control device of the present invention.

[0044] Figure 8 This is a logic diagram of the control method of the present invention.

[0045] Figure 9 This is the basic logic diagram for cigarette bar flow monitoring in this invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Cigarette stick conveyor chain; 2. High-level cigarette stick storage device; 3. Mechanical gripper; 4. Cigarette stick conveying channel; 5. Cigarette stick appearance inspection device; 6. Rejection mechanism; 7. Carton sealing machine; 8. First photoelectric switch; 9. Second photoelectric switch; 10. Host computer; 11. PLC controller; 12. Conveyor belt motor; 13. Pneumatic brush; 14. Pneumatic device bracket; 15. Pneumatic device; 41. Base plate. Detailed Implementation

[0048] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention.

[0049] Please see Figures 3 to 7 This application provides a cigarette pack flow monitoring and control device with self-healing capability, including a high-level storage device 2. The high-level storage device 2 of this application is already in use in existing cigarette packaging machine production lines, and this technical solution does not improve the structure of the high-level storage device; therefore, the structure of the high-level storage device will not be described. In this application, the high-level storage device includes cigarette pack detection sensors, which are electrically connected to a PLC controller 11. The cigarette pack detection sensors typically include three sensors: low-level, middle-level, and high-level, used to transmit the cigarette pack status within the high-level storage device 2 to the PLC controller 11.

[0050] The outlet of the high-level storage device 2 is connected to the inlet of the tobacco appearance inspection device 5 through the tobacco conveying channel 4. A tobacco conveyor belt (not shown in the figure) is installed inside the tobacco conveying channel 4, and the conveyor belt motor drives the tobacco conveyor belt to move; in the technical solution of this application, the tobacco conveying channel is as follows: Figure 5 As shown.

[0051] A pneumatic device bracket 14 is installed near the entrance of the cigarette stick appearance inspection device 5 in the cigarette stick conveying channel 4. A pneumatic device 15 is installed on the pneumatic device bracket 14. A pneumatic brush 13 is installed below the pneumatic device 15 and is located above the cigarette stick conveyor belt in the cigarette stick conveying channel 4.

[0052] An array of photoelectric sensors is installed in the cigarette conveying channel 4.

[0053] The host computer 10 is connected to the PLC controller 11 via electrical signals. The high-level storage bar 2, the conveyor belt motor, the photoelectric sensor array, and the pneumatic brush 13 are all connected to the PLC controller 11 via electrical signals.

[0054] In this application, the photoelectric sensor array includes a first photoelectric switch 8 located near the inlet of the cigarette appearance detection device 5 and a second photoelectric switch 9 located near the outlet of the high-level storage device 2. Both the first photoelectric switch 8 and the second photoelectric switch 9 are mounted on the base plate 41 of the cigarette conveying channel 4. The first photoelectric switch 8 is used to monitor the flow rate of cigarettes in the conveying channel when there are fewer cigarettes; the second photoelectric switch 9 is installed near the high-level storage device and is used to monitor the flow rate of cigarettes in the conveying channel when there are more cigarettes. The controller, optocouplers, etc., are installed inside the high-level storage device's electrical cabinet, and the entire control system does not affect the stable operation of the original equipment.

[0055] In this application, the PLC controller 11 and the optocouplers that cooperate with the first photoelectric switch and the second photoelectric switch respectively are both located in the electrical cabinet of the high-level storage device.

[0056] In this application, a rejection mechanism 6 is provided between the outlet of the cigarette stick appearance inspection device 5 and the inlet of the packing machine, and the rejection mechanism 6 is electrically connected to the PLC controller 11.

[0057] like Figure 7 As shown, the system architecture of the cigarette bar flow monitoring and control device mainly consists of the following four parts:

[0058] Hardware layer: includes PLC controller, sensors (for real-time monitoring of cigarette bar spacing, speed, etc.), and actuators (such as high-level cigarette bar storage device, conveyor belt motor, pneumatic brush, rejection device, etc.).

[0059] Communication layer: Industrial Ethernet or fieldbus technology is used to realize real-time data exchange between PLC controller 11 and host computer 10 system.

[0060] Control layer: The host computer system acts as the control center, responsible for data processing, algorithm analysis, and instruction issuance; the PLC is responsible for receiving instructions and executing specific control logic.

[0061] Application layer: Provides a user-friendly interface for monitoring production status, adjusting control parameters, and receiving fault warnings.

[0062] Hardware components of the cigarette pack flow monitoring and control device:

[0063] The cigarette pack flow monitoring and control device consists of a PLC controller 11, a high-level cigarette storage device 2, a conveyor belt motor, a high-precision photoelectric sensor array, a pneumatic brush 13, a rejection mechanism, etc. The hardware architecture of the monitoring and control device is as follows: Figure 4 As shown.

[0064] This device integrates a high-precision photoelectric sensor array to monitor the spacing between cigarette sticks in the conveying channel in real time with an accuracy of ±5mm, ensuring immediate perception of changes in cigarette stick flow rate. Through intelligent algorithm analysis, it can monitor the cigarette stick flow rate in the conveying channel, respond promptly to potential flow anomalies, and adjust the coordinated operation of the high-level cigarette storage device, cigarette stick conveyor motor, pneumatic brush, and rejection device in advance to achieve flexible and stable conveying of cigarette stick flow rate in the channel.

[0065] The sensor array collects signals in real time as the cigarette bar passes by, converts them into digital signals, and transmits them to the data processing unit. Digital filtering and noise reduction techniques are employed to improve data quality and reduce errors. Simultaneously, timestamp technology is used to record the time point of each cigarette bar's passage, providing foundational data for subsequent flow analysis.

[0066] like Figures 7 to 9 As shown, this application also provides a method for monitoring and controlling the flow rate of cigarette sticks with self-healing capabilities. The method utilizes the self-healing cigarette stick flow rate monitoring and control described above, employing the following steps:

[0067] S1. Determine if the sealing machine is started. If yes, the cigarette packs enter the sealing machine and proceed to step S2. If no, the high-level storage device is started to store the cigarette packs.

[0068] S2. Perform cigarette stick flow monitoring and analysis. If the cigarette stick flow is within the set range, proceed to step S3. If the cigarette stick flow is greater than the maximum value of the set range, proceed to step S5.

[0069] S3. Check if there is a set number of cigarette bars in the high-level storage device. If yes, proceed to step S4; otherwise, proceed to step S5.

[0070] S4. The high-level storage device releases cigarettes into the cigarette conveying channel and determines the instantaneous flow rate of the high-level storage device after releasing the cigarettes. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5.

[0071] S5. The control device is activated to control the cigarette bar flow rate and instantaneous flow rate within the set range.

[0072] In this application, the cigarette strip flow monitoring and analysis in steps S2 and S4 adopts the following steps:

[0073] S21. The first photoelectric switch collects the first photoelectric signal T1 (the time the first photoelectric switch is blocked). If the first photoelectric signal T1 ≥ the first set threshold t1 (the threshold to be calculated), it is determined that the cigarette stick flow rate has increased, and proceed to step S22. Otherwise, it is determined that the cigarette stick flow rate is within the set range.

[0074] S22. The second photoelectric switch collects the second photoelectric signal T2 (the time the second photoelectric switch is blocked). If the second photoelectric signal T2 ≥ the second set threshold t2 (the threshold to be calculated), it is determined that the cigarette stick flow rate is too high; otherwise, it is determined that the cigarette stick flow rate is too high.

[0075] In this application, the start of the control device in step S5 includes one or more of the following: start of the high-level storage bar, start of the rejection mechanism optimized rejection strategy, start of the pneumatic brush, and start of the conveyor belt motor speed control.

[0076] In this application, when the cigarette bar flow rate is greater than the maximum value of the set range in step S2, the control device is activated by one or more of the following: activation of the high-level storage device, activation of the optimized rejection strategy of the rejection mechanism, activation of the pneumatic brush, and activation of the conveyor belt motor speed control.

[0077] In step S4, if the instantaneous flow rate is greater than the maximum value of the set range, the control device is activated, including one or both of the following: pneumatic brush activation or optimized rejection strategy activation control of the rejection mechanism.

[0078] When the cigarette stick flow rate is too high, actions such as storing cigarettes in a high-level storage device, slowing down the conveyor belt motor, lowering the pneumatic brush, and optimizing the rejection mechanism are used to control and slow down the cigarette stick flow rate and prevent sticking.

[0079] When the cigarette pack flow rate is appropriate, the conveying speed of the channel is increased or the stored cigarette pack is released through the high-level storage device. If the release of stored cigarette pack causes the instantaneous flow rate to be too large, the pneumatic brush and the rejection mechanism work together to control the cigarette pack flow rate and prevent the cigarette pack from sticking together.

[0080] This application can also construct a mathematical model of cigarette pack flow rate changes based on historical data and production line characteristics. This model can reflect the dynamic relationship between parameters such as cigarette pack spacing and speed. Furthermore, it utilizes machine learning or deep learning algorithms to analyze real-time collected data and identify abnormal patterns in cigarette pack spacing. By comparing the current flow rate with the model's predicted values, potential flow anomalies, such as cigarette pack breakage or blockages, can be predicted in advance.

[0081] Using this technical solution, the release speed of the high-level storage bar, the running speed of the conveyor belt, or the early warning signal of the rejection mechanism can be automatically adjusted based on the prediction results to deal with potential flow abnormalities and ensure the stable operation of the production line.

[0082] The system described in this application possesses preliminary self-healing capabilities, such as automatically adjusting control parameters to address minor faults and activating backup equipment to replace faulty equipment. For minor blockages, automatic unblocking can be achieved by adjusting the conveyor belt speed or activating a slight vibration device.

[0083] This technical solution is intended to address the following technical problems:

[0084] 1. The structure and hardware composition of the cigarette stick flow monitoring and control device: The cigarette stick flow monitoring device consists of a high-precision photoelectric sensor array, a pneumatic brush, a PLC controller, etc. It does not affect the original structure and is easy to install.

[0085] 2. Real-time data acquisition and processing: The sensor array collects the signal as the cigarette bar passes by in real time, converts it into a digital signal, and then transmits it to the data processing unit.

[0086] 3. Monitoring and analysis of cigarette stick flow rate in the conveying channel: Real-time and accurate cigarette stick flow rate data, after analysis, can accurately control the release and storage actions of the cigarette storage device.

[0087] 4. The coordinated control of key components such as the high-level storage device, pneumatic brush, and rejection mechanism ensures that when the risk of cigarette sticks sticking together is detected, the release speed of the storage device is immediately adjusted and the rejection strategy is optimized to ensure that the cigarette sticks enter the next process at the optimal interval.

[0088] 5. The application of photoelectric switches in the circuit: the triggering time of photoelectric switches is an important support for the analysis of cigarette pack flow data.

[0089] 6. Control Unit: The control unit mainly consists of a PLC. The PLC is responsible for analyzing and processing the cigarette bar flow data and communicating with the host computer to achieve coordinated control of key components such as the high-level cigarette bar storage device, the pneumatic brush, and the rejection mechanism.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for monitoring and controlling the flow rate of cigarette packs with self-healing capability, characterized in that, Using a self-healing tobacco strip flow monitoring and control device, the following steps are adopted: S1. Determine if the sealing machine is started. If yes, the cigarette packs enter the sealing machine and proceed to step S2. If no, the high-level storage device is started to store the cigarette packs. S2. Perform cigarette stick flow monitoring and analysis. If the cigarette stick flow is within the set range, proceed to step S3. If the cigarette stick flow is greater than the maximum value of the set range, proceed to step S5. S3. Check if there is a set number of cigarette bars in the high-level storage device. If yes, proceed to step S4; otherwise, proceed to step S5. S4. The high-level storage device releases cigarettes into the cigarette conveying channel and determines the instantaneous flow rate of the high-level storage device after releasing the cigarettes. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5. S5. The control device is activated to control the cigarette bar flow rate and instantaneous flow rate within the set range; The control device activation in step S5 includes one or more of the following: activation of the high-level bar storage device, activation of the optimized rejection strategy of the rejection mechanism, activation of the pneumatic brush, and activation of the conveyor belt motor speed control. In step S2, if the cigarette bar flow rate is greater than the maximum value of the set range, the control device is activated by one or more of the following: activation of the high-level storage device, activation of the optimized rejection strategy of the rejection mechanism, activation of the pneumatic brush, and activation of the conveyor belt motor speed control. In step S4, if the instantaneous flow rate is greater than the maximum value of the set range, the control device is activated, including one or both of the following: pneumatic brush activation or optimized rejection strategy activation control of the rejection mechanism.

2. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 1, characterized in that, The cigarette pack flow monitoring and analysis in steps S2 and S4 adopts the following steps: S21. The first photoelectric switch collects the first photoelectric signal. If the first photoelectric signal is ≥ the first set threshold, it is determined that the cigarette stick flow rate has increased, and the process proceeds to step S22. Otherwise, it is determined that the cigarette stick flow rate is within the set range. S22. The second photoelectric switch collects the second photoelectric signal. If the second photoelectric signal is greater than or equal to the second set threshold, it is determined that the cigarette stick flow rate is too high; otherwise, it is determined that the cigarette stick flow rate is too high.

3. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 1, characterized in that, The self-healing cigarette pack flow monitoring and control device includes a high-level storage device. The outlet of the high-level storage device is connected to the inlet of the cigarette pack appearance inspection device through the cigarette pack conveying channel. A cigarette pack conveyor belt is installed in the cigarette pack conveying channel, and the conveyor belt motor drives the cigarette pack conveyor belt to move. A pneumatic device support is installed near the entrance of the cigarette stick appearance inspection device in the cigarette stick conveying channel. The pneumatic device is installed on the pneumatic device support, and a pneumatic brush is installed below the pneumatic device. The pneumatic brush is located above the cigarette stick conveyor belt in the cigarette stick conveying channel. An array of photoelectric sensors is installed in the cigarette pack conveying channel; The host computer is connected to the PLC controller via electrical signals. The high-level storage bar, conveyor belt motor, photoelectric sensor array, and pneumatic brush are all connected to the PLC controller via electrical signals.

4. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 3, characterized in that, The high-level cigarette storage device includes a cigarette stick detection sensor, which is electrically connected to the PLC controller.

5. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 3, characterized in that, The photoelectric sensor array includes a first photoelectric switch located near the inlet of the cigarette bar appearance detection device and a second photoelectric switch located near the outlet of the high-level storage device.

6. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 5, characterized in that, Both the first and second photoelectric switches are mounted on the bottom plate of the cigarette conveying channel.

7. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 5, characterized in that, The PLC controller and the optocouplers that cooperate with the first and second photoelectric switches are respectively located in the electrical cabinet of the high-level storage device.

8. The method for monitoring and controlling the flow rate of cigarette packs with self-healing capability according to claim 3, characterized in that, A rejection mechanism is installed between the outlet of the cigarette bar appearance inspection device and the inlet of the carton sealing machine. The rejection mechanism is electrically connected to the PLC controller.

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