Cigarette bar flow monitoring and control device and method with self-repairing capability

Abstract

The invention belongs to the technical field of tobacco production control, and particularly relates to a cigarette bar flow monitoring and control device and method with self-repairing capacity. In the device, an outlet of a high-position carton storage device is connected with an inlet of a cigarette carton appearance detection device through a cigarette carton conveying channel, a pneumatic device support is arranged at the position, close to the inlet of the cigarette carton appearance detection device, of the cigarette carton conveying channel, a pneumatic device is arranged on the pneumatic device support, and a pneumatic brush is arranged below the pneumatic device. A photoelectric sensor array is arranged in the cigarette bar conveying channel; the upper computer is connected with the PLC through electric signals, and the high-position strip storage device, the conveying belt motor, the photoelectric sensor array and the pneumatic brush are all connected with the PLC through electric signals. According to the technical scheme, flexible and stable conveying of the cigarette cartons between the cigarette packaging equipment and the carton sealing machine is achieved, real-time monitoring is achieved, and the problem that an operator cannot check the cigarette carton conveying flow in time is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco production control, and in particular relates to a tobacco rod flow monitoring and control device and method with self-repairing capability. Background Art

[0002] On a modern tobacco production line, the rolled and packaged cigarette rods are uniformly lifted and transported to the carton sealing machine for packaging into boxes through the cigarette rod conveyor chain plate 1. Generally speaking, one carton sealing machine can correspond to multiple packaging machines. The cigarette rod packaging process is as follows: Figure 1 shown.

[0003] Due to differences in production efficiency, speed, time, etc. of each packaging machine, the flow rate of tobacco rods on the tobacco rod conveyor chain plate 1 is also changing in real time. For example, when all corresponding packaging machine equipment are in full-speed production, the flow rate of tobacco rods on the tobacco rod conveyor chain plate will reach the maximum value. Therefore, before the entrance of the carton sealing machine 7, a high-level storage device 2 is also provided to cache tobacco rods to prevent smoke blockage. As a key caching device, the high-level storage device 2 has the ability to stably release and store tobacco rods, which directly affects production efficiency and product quality. The various detection devices on the tobacco rod conveying channel are distributed as follows: Figure 2 shown.

[0004] like Figure 2 The figure shows the distribution diagram of each detection device in the tobacco rod conveying channel. The finished tobacco rods produced by the packaging machine enter the tobacco rod conveying channel 4 of the carton sealing machine through the conveying chain plate 1, and then enter the carton sealing machine 7 for box packaging. At the entrance of the carton sealing machine conveying channel, a high-level tobacco rod storage device 2 is installed, which is used to store or release tobacco rods in the tobacco rod conveying channel 4 using a mechanical gripper 3; at the same time, a tobacco rod appearance detection device 5 is installed on the tobacco rod conveying channel 4 of the carton sealing machine, which is used to perform online quality inspection of the appearance quality of tobacco rods and eliminate defective products. Finished tobacco rods with qualified appearance quality enter the carton sealing machine 7 to complete box packaging.

[0005] In the above production process, the cigarette rod appearance detection device 5, the high-level cigarette rod storage device 2 and the carton sealing machine 7 are independent device systems. When the high-level cigarette rod storage device 2 releases the cigarette rods, a large number of cigarette rods enter the area of ​​the cigarette rod appearance detection device 5 from the height H under the action of the belt and inertia, which can easily cause the cigarette rod appearance detection device 5 to misdetect. The misdetection rate of the cigarette rod appearance detection device 5 is as high as 20% due to the phenomenon of cigarette rods connecting in the cigarette rod conveying channel 4; it is more likely to cause the rejection mechanism 6 to continuously reject and block, the cigarette rods are damaged and other faults, which not only increases the energy consumption and downtime, affects the continuity and stability of the overall production line of the carton sealing equipment, but also increases the product quality risk.

[0006] At present, a cigarette pack conveying line and a cigarette pack conveying adjustment method are provided on the ZB48 cigarette packaging machine. The cigarette pack conveying line includes: a cigarette box packaging device, a cigarette pack storage device and a transparent paper packaging device, wherein a first conveying device is provided between the cigarette box packaging device and the cigarette pack storage device; a second conveying device is provided between the cigarette pack storage device and the transparent paper packaging device; three detection points are provided between the cigarette pack storage device and the transparent paper packaging device, which are the first detection point, the second detection point and the third detection point, respectively, and a sensor is provided on each of the detection points, and the sensor faces the second transmission device to detect whether there is a cigarette pack at the corresponding detection point. The cigarette pack conveying line and the cigarette pack conveying adjustment method can control the conveying speed of the conveying device according to whether there is a cigarette box on the conveying device to avoid blockage and squeezing of cigarette packs. Summary of the invention

[0007] The object of the present invention is to provide a tobacco rod flow monitoring and control device and method with self-repairing capability to solve the problems existing in the above-mentioned background technology.

[0008] To achieve the above objectives, this application is implemented through the following technical solutions:

[0009] A tobacco rod flow monitoring and control device with self-repairing capability comprises a high-position rod storage device, the outlet of the high-position rod storage device is connected to the inlet of a tobacco rod appearance detection device through a tobacco rod conveying channel, a tobacco rod conveying belt is arranged in the tobacco rod conveying channel, and a conveying belt motor drives the tobacco rod conveying belt to move;

[0010] A pneumatic device bracket is arranged at the entrance of the cigarette rod conveying channel near the cigarette rod appearance detection device, the pneumatic device is arranged on the pneumatic device bracket, and 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 tobacco rod conveying channel;

[0012] The upper computer is connected to the PLC controller through electrical signals, and the high-position accumulator, the conveyor belt motor, the photoelectric sensor array and the pneumatic brush are all connected to the PLC controller through electrical signals.

[0013] Furthermore, the high-position cigarette rod storage device includes a cigarette rod detection sensor, and the cigarette rod detection sensor is electrically connected to the PLC controller.

[0014] Furthermore, the photoelectric sensor array includes a first photoelectric switch disposed near the entrance of the tobacco rod appearance detection device, and a second photoelectric switch disposed near the exit of the high-position tobacco rod storage device.

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

[0016] Furthermore, the PLC controller and the optical couplers respectively cooperating with the first photoelectric switch and the second photoelectric switch are arranged in the electric cabinet of the high-position accumulator.

[0017] Furthermore, a rejection mechanism is provided between the outlet of the cigarette rod appearance detection device and the inlet of the box filling and sealing machine, and the rejection mechanism is connected to the PLC controller via an electrical signal.

[0018] A method for monitoring and controlling the flow rate of a cigarette rod with self-repairing capability, using any of the above-mentioned monitoring and controlling methods for the flow rate of a cigarette rod with self-repairing capability, adopts the following steps:

[0019] S1, determine whether the carton sealing machine is started, if so, the cigarette rods enter the carton sealing machine and proceed to step S2, if not, the high-level cigarette rod storage device is started to store the cigarette rods;

[0020] S2, monitor and analyze the flow rate of the cigarette rods. If the flow rate of the cigarette rods is within the set range, proceed to step S3. If the flow rate of the cigarette rods is greater than the maximum value of the set range, proceed to step S5.

[0021] S3, checking whether there are a set number of cigarette rods in the high-position cigarette rod storage device, if yes, proceed to step S4, if not, proceed to step S5;

[0022] S4, the high-position accumulator releases the tobacco rods into the tobacco rod conveying channel, and determines the instantaneous flow rate of the high-position accumulator after releasing the tobacco rods. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5;

[0023] S5. The control device starts to control the tobacco flow and instantaneous flow within the set range.

[0024] Furthermore, the tobacco rod flow monitoring and analysis in step S2 and step S4 adopts the following steps:

[0025] S21, the first photoelectric switch collects the first photoelectric signal, if the first photoelectric signal is greater than or equal to the first set threshold, it is determined that the cigarette flow rate has increased, and the process goes to step S22, otherwise it is determined that the cigarette flow rate is within the set range;

[0026] S22. The second photoelectric switch collects a second photoelectric signal. If the second photoelectric signal is ≥ a second set threshold, it is determined that the tobacco flow is too large. Otherwise, it is determined that the tobacco flow is large.

[0027] Furthermore, the activation of the control device in step S5 includes one or more of the activation of the high-position strip storage device, the activation of the optimization of the rejection strategy of the rejection mechanism, the activation of the pneumatic brush, and the activation of the speed control of the conveyor belt motor.

[0028] Furthermore, in step S2, when the flow rate of cigarette rods is greater than the maximum value of the set range, the control device starts one or more of the following: starting the high-position cigarette rod storage device, starting the rejection mechanism to optimize the rejection strategy, starting the pneumatic brush, and starting the conveyor belt motor speed control;

[0029] When the instantaneous flow rate is greater than the maximum value of the set range in step S4, the control device starts one or both of the pneumatic brush start-up and the rejection mechanism optimization rejection strategy start-up control.

[0030] The beneficial effects of the present invention are:

[0031] (1) The present invention can realize flexible and smooth transportation of cigarette rods between cigarette packaging equipment and carton sealing machines.

[0032] (2) The present invention can solve the problem of waste of human resources caused by manually checking the transportation status of cigarette rods.

[0033] (3) This device can replace manual labor to enable real-time monitoring, solving the problem that operators cannot check the tobacco rod delivery flow in time.

[0034] (4) This device can avoid the risk of mechanical injury caused by operators handling flowing tobacco rods by replacing manual labor.

[0035] (5) This device can replace manual labor to avoid product quality risks caused by operators manually handling flowing tobacco rods, thereby improving product quality.

[0036] (6) The device has a simple structure and requires less investment, and can achieve better optimization effects and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0038] Figure 2 This is a simplified diagram of the tobacco rod running in the conveying channel and the device for inspecting the appearance of the tobacco rod.

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

[0040] Figure 4 The block diagram is a composition of the tobacco rod flow monitoring and control device of the present invention.

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

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

[0043] Figure 7 This is a system architecture diagram of the cigarette rod 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] Fig. 9 This is the basic logic diagram of the cigarette rod flow monitoring of the present invention.

[0046] Description of reference numerals:

[0047] 1. Cigarette rod conveying chain plate; 2. High-position cigarette rod storage device; 3. Mechanical gripper; 4. Cigarette rod conveying channel; 5. Cigarette rod appearance detection 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. Bottom plate. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is described in detail below in conjunction with 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, but cannot be construed as limiting the technical solution of the present invention.

[0049] See also Figures 3 to 7 The present application provides a tobacco rod flow monitoring and control device with self-repairing capability, including a high-level storage rod 2. The high-level storage rod 2 of the present application is already in use in the production line of the current cigarette packaging machine, and the present technical solution does not improve the structure of the high-level storage rod, so the structure of the high-level storage rod is not described. In the present application, the high-level storage rod includes a tobacco rod detection sensor, and the tobacco rod detection sensor is electrically connected to the PLC controller 11. The tobacco rod detection sensor usually includes three, namely low, middle and high positions, which are used to transmit the tobacco rod status in the high-level storage rod 2 to the PLC controller 11.

[0050] The outlet of the high-position accumulator 2 is connected to the inlet of the cigarette rod appearance detection device 5 through the cigarette rod conveying channel 4. A cigarette rod conveying belt (not shown in the figure) is arranged in the cigarette rod conveying channel 4. The conveying belt motor drives the cigarette rod conveying belt to move. In the technical solution of the present application, the cigarette rod conveying channel is as follows: Figure 5 shown.

[0051] A pneumatic device bracket 14 is arranged at the entrance of the cigarette rod conveying channel 4 near the cigarette rod appearance detection device 5, a pneumatic device 15 is arranged on the pneumatic device bracket 14, a pneumatic brush 13 is arranged below the pneumatic device 15, and the pneumatic brush 13 is located above the cigarette rod conveying belt in the cigarette rod conveying channel 4.

[0052] A photoelectric sensor array is arranged in the tobacco rod conveying channel 4 .

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

[0054] In the present application, the photoelectric sensor array includes a first photoelectric switch 8 disposed near the entrance of the tobacco rod appearance detection device 5, and a second photoelectric switch 9 disposed near the exit of the high-position accumulator 2. The first photoelectric switch 8 and the second photoelectric switch 9 of the present application are both disposed on the bottom plate 41 of the tobacco rod conveying channel 4. The first photoelectric switch 8 is used to monitor the flow rate of the smaller tobacco rods in the conveying channel; the second photoelectric switch 9 is installed near the high-position accumulator side, and is used to monitor the maximum flow rate of tobacco rods in the conveying channel; the controller, optical coupler, etc. are installed in the electrical cabinet of the high-position accumulator, and the entire control system does not affect the stable operation of the original equipment.

[0055] In the present application, the PLC controller 11 and the optical couplers respectively cooperating with the first photoelectric switch and the second photoelectric switch are all arranged in the electrical cabinet of the high-position accumulator.

[0056] In the present application, a rejection mechanism 6 is provided between the outlet of the cigarette rod appearance detection device 5 and the inlet of the box filling and sealing machine, and the rejection mechanism 6 is connected to the PLC controller 11 via an electrical signal.

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

[0058] Hardware layer: including PLC controller, sensors (used to monitor the distance and speed of cigarette rods in real time), actuators (such as high-level storage devices, conveyor belt motors, pneumatic brushes, rejection devices, etc.).

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

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

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

[0062] The hardware components of the cigarette flow monitoring and control device are:

[0063] The tobacco rod flow monitoring and control device is composed of a PLC controller 11, a high-level rod 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 shown.

[0064] This device integrates a high-precision photoelectric sensor array to monitor the distance between cigarette rods in the conveying channel in real time with an accuracy of ±5mm, ensuring instant perception of changes in cigarette rod flow. Through intelligent algorithm analysis, it can monitor the flow of cigarette rods in the conveying channel, respond to potential flow anomalies in a timely manner, and adjust the coordinated actions of the high-level storage device, cigarette rod conveyor belt motor, pneumatic brush, and rejection device in advance to achieve flexible and stable transportation of cigarette rod flow in the channel.

[0065] The sensor array collects the signal of the cigarette rod passing through in real time, converts it into a digital signal and transmits it to the data processing unit. Signal processing technologies such as digital filtering and denoising are used to improve data quality and reduce errors. At the same time, the time point of each cigarette rod passing through is recorded using timestamp technology to provide basic data for subsequent flow analysis.

[0066] like Figures 7 to 9 As shown, the present application also provides a method for monitoring and controlling the flow of a cigarette rod with self-repairing capability, using any of the above-mentioned monitoring and controlling methods for the flow of a cigarette rod with self-repairing capability, and adopting the following steps:

[0067] S1, determine whether the carton sealing machine is started, if so, the cigarette rods enter the carton sealing machine and proceed to step S2, if not, the high-level cigarette rod storage device is started to store the cigarette rods;

[0068] S2, monitor and analyze the flow rate of the cigarette rods. If the flow rate of the cigarette rods is within the set range, proceed to step S3. If the flow rate of the cigarette rods is greater than the maximum value of the set range, proceed to step S5.

[0069] S3, checking whether there are a set number of cigarette rods in the high-position cigarette rod storage device, if yes, proceed to step S4, if not, proceed to step S5;

[0070] S4, the high-position accumulator releases the tobacco rods into the tobacco rod conveying channel, and determines the instantaneous flow rate of the high-position accumulator after releasing the tobacco rods. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5;

[0071] S5. The control device starts to control the tobacco flow and instantaneous flow within the set range.

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

[0073] S21. The first photoelectric switch collects the first photoelectric signal T1 (the time when the first photoelectric switch is blocked). If the first photoelectric signal T1 ≥ the first set threshold t1 (the threshold set for calculation), it is determined that the tobacco flow rate has increased and the process goes to step S22. Otherwise, it is determined that the tobacco 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 set for calculation), it is determined that the tobacco flow rate is too large; otherwise, it is determined that the tobacco flow rate is large.

[0075] In the present application, the activation of the control device in step S5 includes one or more of the activation of the high-level accumulator, the activation of the optimization of the rejection strategy of the rejection mechanism, the activation of the pneumatic brush, and the activation of the conveyor belt motor speed control.

[0076] In the present application, when the flow rate of cigarette rods in step S2 is greater than the maximum value of the set range, the control device starts one or more of the following: starting the high-position cigarette rod storage device, starting the rejection mechanism to optimize the rejection strategy, starting the pneumatic brush, and starting the conveyor belt motor speed control;

[0077] When the instantaneous flow rate is greater than the maximum value of the set range in step S4, the control device starts one or both of the pneumatic brush start-up and the rejection mechanism optimization rejection strategy start-up control.

[0078] When the flow of cigarette rods is too large, the flow of cigarette rods can be controlled and prevented from sticking by storing cigarettes in high-position storage devices, slowing down the conveyor belt motor, lowering the pneumatic brush, and optimizing the rejection mechanism strategy.

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

[0080] This application can also construct a mathematical model of cigarette rod flow changes based on historical data and production line characteristics. The model can reflect the dynamic relationship between parameters such as cigarette rod spacing and speed. And use machine learning or deep learning algorithms to analyze real-time collected data to identify abnormal change patterns in cigarette rod spacing. By comparing the current flow state with the model prediction value, potential flow anomalies such as connecting rods and blockages can be predicted in advance.

[0081] By using this technical solution, the release speed of the high-level accumulator, the running speed of the conveyor belt, or the early warning signal of the rejection mechanism are automatically adjusted according to the prediction results to deal with potential flow anomalies and ensure the stable operation of the production line.

[0082] The system of the present application has preliminary self-repair capabilities, such as automatically adjusting control parameters to deal with minor faults, starting spare equipment to replace faulty equipment, etc. For minor blockages, it can be automatically unblocked by adjusting the conveyor belt speed or starting a slight vibration device.

[0083] This technical solution is used to solve the following technical problems:

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

[0085] 2. Real-time data acquisition and processing: the sensor array collects the signal of the cigarette rod passing through in real time, converts it into a digital signal and transmits it to the data processing unit.

[0086] 3. Monitoring and analysis of the tobacco rod flow in the conveying channel. Real-time and accurate tobacco rod flow data can be analyzed to accurately control the release and storage actions of the tobacco rod storage device.

[0087] 4. Coordinated control of key components such as high-level tobacco rod storage devices, pneumatic brushes, and rejection mechanisms. When the risk of tobacco rods being connected is detected, the release speed of the tobacco rod storage devices is immediately adjusted and the rejection strategy is optimized to ensure that the tobacco rods enter the next process at the optimal interval.

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

[0089] 6. Control unit. The control unit mainly includes PLC. PLC is responsible for analyzing and processing the tobacco rod flow data, and communicating with the host computer to realize the coordinated control of key components such as high-level storage device, pneumatic brush, and rejection mechanism.

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

Claims

1. A tobacco rod flow monitoring and control device with self-repairing capability, characterized in that: It includes a high-position rod storage device, the outlet of the high-position rod storage device is connected to the inlet of the tobacco rod appearance detection device through a tobacco rod conveying channel, a tobacco rod conveying belt is arranged in the tobacco rod conveying channel, and the conveying belt motor drives the tobacco rod conveying belt to move; A pneumatic device bracket is arranged at the entrance of the cigarette rod conveying channel near the cigarette rod appearance detection device, the pneumatic device is arranged on the pneumatic device bracket, and 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; A photoelectric sensor array is arranged in the tobacco rod conveying channel; The upper computer is connected to the PLC controller through electrical signals, and the high-position accumulator, the conveyor belt motor, the photoelectric sensor array and the pneumatic brush are all connected to the PLC controller through electrical signals.

2. The tobacco rod flow monitoring and control device with self-repairing capability according to claim 1, characterized in that: The high-position cigarette rod storage device comprises a cigarette rod detection sensor, and the cigarette rod detection sensor is connected to the PLC controller via an electrical signal.

3. The tobacco rod flow monitoring and control device with self-repairing capability according to claim 1, characterized in that: The photoelectric sensor array includes a first photoelectric switch arranged near the entrance of the tobacco rod appearance detection device and a second photoelectric switch arranged near the exit of the high-position tobacco rod storage device.

4. The tobacco rod flow monitoring and control device with self-repairing capability according to claim 3, characterized in that: The first photoelectric switch and the second photoelectric switch are both arranged on the bottom plate of the tobacco rod conveying channel.

5. The tobacco rod flow monitoring and control device with self-repairing capability according to claim 3, characterized in that: The PLC controller and the optical couplers respectively matched with the first photoelectric switch and the second photoelectric switch are arranged in the electric cabinet of the high-position accumulator.

6. The tobacco rod flow monitoring and control device with self-repairing capability according to claim 1, characterized in that: A rejection mechanism is arranged between the outlet of the cigarette rod appearance detection device and the inlet of the carton sealing machine, and the rejection mechanism is connected to the PLC controller by electrical signals.

7. A method for monitoring and controlling the flow of a cigarette rod with self-repairing capability, characterized in that: Using the tobacco rod flow monitoring and control with self-repairing capability according to any one of claims 1 to 6, the following steps are adopted: S1, determine whether the carton sealing machine is started, if yes, the cigarette rods enter the carton sealing machine and proceed to step S2, if no, the high-level cigarette rod storage device is started to store the cigarette rods; S2, monitor and analyze the flow rate of the cigarette rods. If the flow rate of the cigarette rods is within the set range, proceed to step S3. If the flow rate of the cigarette rods is greater than the maximum value of the set range, proceed to step S5. S3, checking whether there are a set number of cigarette rods in the high-position cigarette rod storage device, if yes, proceed to step S4, if not, proceed to step S5; S4, the high-position accumulator releases the tobacco rods into the tobacco rod conveying channel, and determines the instantaneous flow rate of the high-position accumulator after releasing the tobacco rods. If the instantaneous flow rate is greater than the maximum value of the set range, proceed to step S5; S5. The control device is started to control the tobacco flow and instantaneous flow within the set range.

8. The method for monitoring and controlling the flow of a tobacco rod with self-repairing capability according to claim 7, characterized in that: The tobacco rod flow monitoring and analysis in step S2 and step S4 adopts the following steps: S21, the first photoelectric switch collects the first photoelectric signal, if the first photoelectric signal is greater than or equal to the first set threshold, it is determined that the cigarette flow rate has increased, and the process goes to step S22, otherwise it is determined that the cigarette flow rate is within the set range; S22. The second photoelectric switch collects a second photoelectric signal. If the second photoelectric signal is ≥ a second set threshold, it is determined that the tobacco flow is too large. Otherwise, it is determined that the tobacco flow is large.

9. The method for monitoring and controlling the flow of a tobacco rod with self-repairing capability according to claim 7, characterized in that: The control device activation in step S5 includes one or more of the following: activation of the high-position strip storage device, activation of the rejection mechanism optimization rejection strategy, activation of the pneumatic brush, and activation of the conveyor belt motor speed control.

10. The method for monitoring and controlling the flow of a tobacco rod with self-repairing capability according to claim 9, characterized in that: In step S2, when the flow rate of cigarette rods is greater than the maximum value of the set range, the control device starts one or more of the following: starting the high-position cigarette rod storage device, starting the rejection mechanism to optimize the rejection strategy, starting the pneumatic brush, and starting the conveyor belt motor speed control; When the instantaneous flow rate is greater than the maximum value of the set range in step S4, the control device starts one or both of the pneumatic brush start-up and the rejection mechanism optimization rejection strategy start-up control.

Images