A filter rod air conveying and clogging clearing system and a control method thereof

Abstract

The application discloses a filter rod air feeding and blockage removing system and a control method thereof. The system comprises a transmitter optical fiber sensing module, a receiver optical grating sensing module, a cutoff cylinder, a receiver side door cylinder, a first disengaging cylinder, a second disengaging cylinder, a first air blowing valve, a second air blowing valve and a control module. When the transmitter pipeline is blocked, the control module determines the light fiber pulse signal detected by the transmitter optical fiber sensing module and the optical grating signal detected by the receiver optical grating sensing module, stops the feeding of the transmitter, disconnects the filter rod conveying pipeline of the first disengaging cylinder and the second disengaging cylinder, and starts the first air blowing valve and the second air blowing valve. When the receiver is blocked, the control module determines the optical grating signal, intercepts the filter rod by the cutoff cylinder, disconnects the filter rod conveying pipeline of the first disengaging cylinder and the second disengaging cylinder, and starts the receiver side door cylinder. The system realizes the linkage control of the transmitter and the receiver when the filter rod air feeding is blocked, improves the automation degree and the response sensitivity of the system, and meets the use requirement of continuous production.

Description

Technical Field

[0001] This invention relates to the field of tobacco filter rod conveying technology, and in particular to a filter rod pneumatic conveying and unclogging system and its control method. Background Technology

[0002] In the tobacco production sector, the filter rod pneumatic conveying system is a key piece of equipment for transporting filter rods. Currently, when filter rod pneumatic conveying systems in the tobacco industry experience blockages, most companies rely on manual disassembly of pipes, purging of pipelines, and manual resetting to clear the blockages. This method suffers from problems such as low unblocking efficiency, high filter rod wear, high labor intensity, and long downtime.

[0003] Although some pneumatic conveying systems are equipped with automatic pipe detachment and backflushing devices at the transmitting end and automatic cleaning devices at the receiving end, the two devices are independent of each other and lack linkage control logic. When the pipeline is blocked, it is still necessary to manually determine the location of the blockage, switch the equipment working mode, and manually reset it. The automation level is low and the response is slow, which can easily cause secondary blockage of the pipeline and production interruption, making it difficult to meet the needs of continuous production. Summary of the Invention

[0004] This invention provides a filter rod pneumatic conveying unclogging system and its control method. By linking the transmitting and receiving ends when the filter rod pneumatic conveying system is clogged, the two work together to improve unclogging efficiency, system automation and response sensitivity, and ensure the stability of continuous filter rod conveying, thus meeting the needs of continuous production.

[0005] In a first aspect, embodiments of the present invention provide a filter rod air-pumped unblocking system, which includes a transmitter fiber optic sensing module, a receiver grating sensing module, a cut-off cylinder, a receiver side door cylinder, a first disconnect cylinder, a second disconnect cylinder, a first air-blowing valve, a second air-blowing valve, and a control module. The transmitter fiber optic sensing module is used to detect the fiber optic pulse signal emitted by the transmitter, and the receiver grating sensing module is used to detect the grating signal emitted by the receiver; the first disconnect cylinder and the first blow valve are located on the side closer to the transmitter, and the cut-off cylinder, the second disconnect cylinder and the second blow valve are located on the side closer to the receiver. The control module is electrically connected to the transmitter fiber optic sensing module, the receiver grating sensing module, the cut-off cylinder, the receiver side door cylinder, the first disconnect cylinder, the second disconnect cylinder, the first air blower valve, and the second air blower valve, respectively. When the transmitter pipe is determined to be blocked based on the fiber optic pulse signal and the grating signal, the control module stops the transmitter from feeding, activates the first and second disconnect cylinders to disconnect the filter rod delivery pipe, and activates the first and second air blower valves. When the receiver is determined to be blocked based on the grating signal, the control module intercepts the filter rod with the cut-off cylinder, activates the first and second disconnect cylinders to disconnect the filter rod delivery pipe, and activates the receiver side door cylinder to empty the receiver.

[0006] Optionally, the filter rod pneumatic unblocking system also includes a material level detection module; The material level detection module is electrically connected to the receiver to acquire the material level signal from the receiver; The control module is electrically connected to the material level detection module and is used to control the receiver to start operation based on the material level signal when the receiver is determined to be in a non-blocking state based on the grating signal.

[0007] Optionally, the filter rod air delivery unclogging system may also include an alarm module; The control module is electrically connected to the alarm module and is used to control the alarm module to provide a fault alarm when it is determined that the transmitting pipe is blocked and / or the receiver is blocked.

[0008] Secondly, embodiments of the present invention provide a control method for a filter rod air-feeding unclogging system. This control method is applied to the filter rod air-feeding unclogging system and includes: Acquire fiber pulse signals and grating signals; When the transmitting pipe is determined to be blocked based on the fiber pulse signal and grating signal, the transmitter is controlled to stop feeding, the first and second disconnect cylinders are controlled to disconnect the filter rod conveying pipe, and the first and second air blowing valves are controlled to start. When the receiver is determined to be blocked based on the grating signal, the control cut-off cylinder intercepts the filter rod, the first and second disconnect cylinders are activated to disconnect the filter rod delivery pipe, and the receiver side door cylinder is activated to vent the receiver.

[0009] Optionally, after determining that the transmitting pipe is blocked based on the fiber optic pulse signal and the grating signal, the system further includes: controlling the transmitter to stop feeding, controlling the first and second disconnect cylinders to disconnect the filter rod conveying pipe, and controlling the first and second air-blowing valves to start; The first air-blowing valve is reset after the first preset purging time is reached; The second air-blowing valve is reset after the second preset purging time is reached; Control the first and second disengagement cylinders to reset; Control the transmitter to start operation.

[0010] Optionally, when the receiver is determined to be blocked based on the grating signal, the following steps are taken: The cut-off cylinder is controlled to intercept the filter rod, the first and second disconnect cylinders are controlled to disconnect the filter rod delivery pipe, and the receiver side door cylinder is activated to ventilate the receiver. The receiver is reset after the preset emptying time is reached. The first and second disengagement cylinders are reset after a preset time is reached; Reset the receiver side door cylinder; Control the cylinder to reset.

[0011] Optionally, the filter rod pneumatic unblocking system also includes a material level detection module, which is electrically connected to the receiver to obtain the material level information from the receiver; Control methods also include: When the receiver is determined to be in a non-blocking state based on the grating signal, the material level signal is acquired. The receiver is started and operated based on the material level signal.

[0012] Optionally, the receiver can be started and operated based on the material level signal, including: The receiver determines the material level information based on the material level signal; When the material level information is greater than or equal to the preset material level information, the control receiver enters the standby state; When the material level information is lower than the preset material level information, the control receiver starts running.

[0013] Optionally, determining whether the transmitting channel is blocked based on the fiber pulse signal and the grating signal includes: When an optical fiber pulse signal is received but no grating signal is received, it is determined that the transmitting channel is blocked. Determining a receiver's blocked state based on the grating signal includes: If the trigger duration of the grating signal exceeds the preset trigger duration, the receiver is determined to be in a blocked state.

[0014] Optionally, the filter rod air delivery unclogging system may also include an alarm module; Control methods also include: When it is determined that the transmitting pipe is blocked, and / or the receiver is blocked, the control alarm module will issue a fault alarm.

[0015] This invention provides a filter rod air-feeding unblocking system. It utilizes a transmitter fiber optic sensing module to detect fiber optic pulse signals emitted by the transmitter and a receiver grating sensing module to detect grating signals emitted by the receiver. A first disconnect cylinder and a first air-blowing valve are positioned near the transmitter, while a stop cylinder, a second disconnect cylinder, and a second air-blowing valve are positioned near the receiver. A control module is electrically connected to the transmitter fiber optic sensing module, the receiver grating sensing module, the stop cylinder, the receiver side door cylinder, the first disconnect cylinder, the second disconnect cylinder, the first air-blowing valve, and the second air-blowing valve. When the transmission pipe is determined to be blocked based on the fiber optic pulse signal and the grating signal, the system controls the transmitter to stop feeding, activates the first and second disconnect cylinders to disconnect the filter rod delivery pipe, and activates the first and second air-blowing valves. When the receiver is determined to be blocked based on the grating signal, the system controls the stop cylinder to intercept the filter rod, activates the first and second disconnect cylinders to disconnect the filter rod delivery pipe, and activates the receiver side door cylinder to ventilate the receiver. This configuration, when the filter rod conveying system becomes clogged, enables coordinated control of the transmitting and receiving ends, allowing them to work together. This improves unblocking efficiency, system automation, and response sensitivity, ensuring the stability of continuous filter rod delivery and meeting the needs of continuous production. It solves the problems of low unblocking efficiency and incomplete unblocking leading to secondary blockages and production interruptions caused by the need for manual identification, unblocking, and resetting of the filter rod conveying pipeline after blockage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a filter rod air delivery unclogging system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another filter rod air delivery unclogging system provided in an embodiment of the present invention; Figure 3 This is a flowchart of the control method for the first filter rod air delivery unclogging system provided in the embodiments of the present invention; Figure 4 This is a flowchart of the control method for the second filter rod air delivery unclogging system provided in the embodiments of the present invention; Figure 5 This is a flowchart of the control method for the third filter rod air delivery unclogging system provided in the embodiments of the present invention; Figure 6 This is a flowchart of the control method for the fourth filter rod air delivery unclogging system provided in the embodiments of the present invention; Figure 7 This is a flowchart of the control method for the fifth filter rod air delivery unclogging system provided in the embodiments of the present invention; Figure 8 This is a flowchart of the control method for the sixth filter rod air delivery unclogging system provided in the embodiments of the present invention.

[0017] In this embodiment of the invention, the reference numerals and corresponding feature names are as follows: 10-Transmitter, 20-Receiver, 1-Transmitter fiber optic sensing module, 2-Receiver grating sensing module, 3-Stop cylinder, 4-Receiver side door cylinder, 5-First disconnect cylinder, 6-Second disconnect cylinder, 7-First air blower valve, 8-Second air blower valve, 30-Control module, 40-Material level detection module, 50-Alarm module. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0019] The terminology used in the embodiments of this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this invention. Furthermore, in the context, it should be understood that when referring to an element being formed "upper" or "lower" of another element, it can be formed not only directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the structure of a filter rod air-feed unclogging system provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of another filter rod pneumatic conveying unblocking system provided by an embodiment of the present invention. This embodiment is applicable to situations where the filter rod pneumatic conveying system experiences low unblocking efficiency and low automation, easily leading to secondary blockage and production interruption. Figure 1 and Figure 2 As shown, the filter rod air-assisted unclogging system provided in this embodiment of the invention includes a transmitter fiber optic sensing module 1, a receiver grating sensing module 2, a cut-off cylinder 3, a receiver side door cylinder 4, a first disconnect cylinder 5, a second disconnect cylinder 6, a first air-blowing valve 7, a second air-blowing valve 8, and a control module 30. The transmitter fiber optic sensing module 1 is used to detect the fiber optic pulse signal emitted by the transmitter 10, and the receiver grating sensing module 2 is used to detect the grating signal emitted by the receiver 20. The first disconnect cylinder 5 and the first air-blowing valve 7 are located on the side close to the transmitter 10, and the cut-off cylinder 3, the second disconnect cylinder 6, and the second air-blowing valve 8 are located on the side close to the receiver 20. The control module 30 is connected to the transmitter fiber optic sensing module. 1. The receiver grating sensor module, 2. the cut-off cylinder, 3. the receiver side door cylinder, 4. the first disconnect cylinder, 5. the second disconnect cylinder, 6. the first air blower valve, 7. the second air blower valve, and 8 are electrically connected; 2. When the transmitter pipe is determined to be blocked based on the fiber optic pulse signal and the grating signal, the transmitter 10 is controlled to stop feeding, the first disconnect cylinder 5 and the second disconnect cylinder 6 are controlled to disconnect the filter rod conveying pipe, and the first air blower valve 7 and the second air blower valve 8 are controlled to start; 3. When the receiver 20 is determined to be blocked based on the grating signal, the receiver 20 is controlled to stop the filter rod by the cut-off cylinder 3, the first disconnect cylinder 5 and the second disconnect cylinder 6 are controlled to disconnect the filter rod conveying pipe, and the receiver side door cylinder 4 is controlled to start to empty the receiver 20.

[0022] In this embodiment, the filter rod air-feeding unblocking system includes a transmitter fiber optic sensing module 1 and a receiver grating sensing module 2. The transmitter fiber optic sensing module 1 can be understood as a sensing module installed in the transmitter 10 of the filter rod air-feeding system, using optical fiber as the sensing medium, used to collect the filter rod delivery status in the transmission pipe and output pulse signals. The transmitter fiber optic sensing module 1 is used to sense the filter rod movement and output optical fiber pulse signals, providing a detection signal for the filter rod air-feeding unblocking system to determine the unblocking status of the transmission pipe. Exemplarily, the transmitter fiber optic sensing module 1 includes, but is not limited to, an optical fiber sensor installed in the transmitter 10; this embodiment of the invention does not impose limitations on this. The receiver grating sensing module 2 can be understood as a sensing component assembled at the receiver 20 of the filter rod air-feeding system, relying on the grating detection principle to monitor the filter rod passage status in real time. When a filter rod passes through or lingers in the detection area, the receiver grating sensing module 2 detects the grating signal emitted by the receiver 20, providing a detection basis for the filter rod air-feeding unblocking system to determine the blockage status of the receiver 20. For example, the receiver grating sensing module 2 includes, but is not limited to, the grating sensor disposed in the receiver 20, and the embodiments of the present invention do not limit this.

[0023] The filter rod air delivery unblocking system includes a shut-off cylinder 3, a receiver side door cylinder 4, a first disconnect cylinder 5, a second disconnect cylinder 6, a first air-blowing valve 7, a second air-blowing valve 8, and a control module 30. The shut-off cylinder 3 can be understood as a drive cylinder installed in the filter rod delivery pipeline, which blocks or opens the filter rod delivery channel through its extension and retraction. The first disconnect cylinder 5 and the second disconnect cylinder 6 can be understood as two pneumatic actuators respectively located on both sides of the filter rod delivery pipeline connection point, which, through cooperation, drive the filter rod delivery pipeline to complete the connection and separation actions. The first air-blowing valve 7 and the second air-blowing valve 8 can be understood as two pneumatic control valves located at different positions in the filter rod air delivery unblocking system, which control the airflow into the filter rod delivery pipeline from different directions. The receiver side door cylinder 4 is mounted at the side door of the receiver 20 and is a pneumatic component that controls the opening and closing of the receiver 20's side door. The control module 30 is a functional module that can receive instructions, acquire signals and perform calculations, and output control signals to drive actuators to complete preset actions. The control module 30 includes, but is not limited to, a programmable logic controller (PLC) and a computer.

[0024] Specifically, the first disconnect cylinder 5 is located at the connection point of the filter rod conveying pipe near the transmitter 10, and the second disconnect cylinder 6 is located at the connection point of the filter rod conveying pipe near the receiver 20. Under the control of the control module 30, the first disconnect cylinder 5 drives the filter rod conveying pipe on the transmitter 10 side, and the second disconnect cylinder 6 drives the filter rod conveying pipe on the receiver side. These two cylinders cooperate to disconnect or reset the filter rod conveying pipes of the filter rod air-pumped unblocking system. The first air-blowing valve 7 is located near the transmitter 10 and blows air in the filter rod conveying direction for unblocking the filter rod conveying pipes. The second air-blowing valve 8 is located near the receiver 20 and blows air in the opposite direction of filter rod conveying for unblocking the filter rod conveying pipes. The shut-off cylinder 3 is located near the receiver 20 and is used to intercept the filter rods conveyed by the transmitter 10 when the receiver 20 becomes blocked.

[0025] The control module 30 is electrically connected to the transmitter fiber optic sensing module 1, the receiver grating sensing module 2, the cutoff cylinder 3, the receiver side door cylinder 4, the first disconnect cylinder 5, the second disconnect cylinder 6, the first air blow valve 7, and the second air blow valve 8. The control module 30 receives the fiber optic pulse signal transmitted from the transmitter 10 by the transmitter fiber optic sensing module 1 and the grating signal transmitted from the receiver 20 by the receiver grating sensing module 2, and determines the blockage status of the transmission pipe based on the fiber optic pulse signal and the grating signal. When the control module 30 determines that the transmitting pipe is blocked, it immediately controls the transmitter 10 to stop feeding. At the same time, it controls the first disconnect cylinder 5 and the second disconnect cylinder 6 to act simultaneously. The two work together to disconnect the filter rod conveying pipe. It controls the first air blowing valve 7 to start and blow the transmitting pipe along the filter rod conveying direction. It controls the second air blowing valve 8 to start and blow the filter rod on the receiver 20 side in the opposite direction of filter rod conveying, so as to prevent the filter rod debris blown by the first air blowing valve 7 from entering the receiver 20 side and causing the receiver 20 to become blocked.

[0026] The control module 30 determines the blockage status of the receiver 20 based on the grating signal. When the control module 30 determines that the receiver 20 is blocked, it controls the cut-off cylinder 3 to start, thereby intercepting the filter rod output by the transmitter 10 and preventing the filter rod from continuing to be fed into the receiver 20. At the same time, it controls the first disconnect cylinder 5 and the second disconnect cylinder 6 to operate in coordination, thereby disconnecting the filter rod delivery pipe. It also controls the receiver side door cylinder 4 to start, thereby opening the side door of the receiver 20 and exposing the internal cavity of the receiver 20, allowing the blocked filter rod and debris inside the receiver 20 to be discharged.

[0027] For example, the first disconnect cylinder 5 and the second disconnect cylinder 6 may be operated to disconnect the filter rod delivery pipe in a manner including but not limited to the first disconnect cylinder 5 and the second disconnect cylinder 6 extending outward simultaneously and pulling the filter rod delivery pipe horizontally in both directions to disconnect the filter rod delivery pipe. This embodiment of the present invention does not limit this.

[0028] The filter rod air-feeding unblocking system provided in this embodiment of the invention uses a transmitter fiber optic sensing module 1 to detect fiber optic pulse signals emitted by transmitter 10 and a receiver grating sensing module 2 to detect grating signals emitted by receiver 20. The first disconnect cylinder 5 and the first air-blowing valve 7 are positioned near transmitter 10, while the stop cylinder 3, the second disconnect cylinder 6, and the second air-blowing valve 8 are positioned near receiver 20. The control module 30 is electrically connected to the transmitter fiber optic sensing module 1, the receiver grating sensing module 2, the stop cylinder 3, the receiver side door cylinder 4, the first disconnect cylinder 5, the second disconnect cylinder 6, the first air-blowing valve 7, and the second air-blowing valve 8. When the transmission pipe is determined to be blocked based on the fiber optic pulse signal and the grating signal, the system controls transmitter 10 to stop feeding, controls the first disconnect cylinder 5 and the second disconnect cylinder 6 to disconnect the filter rod delivery pipe, and controls the first air-blowing valve 7 and the second air-blowing valve 8 to start. When the receiver 20 is determined to be blocked based on the grating signal, the cut-off cylinder 3 is controlled to intercept the filter rod, the first disconnect cylinder 5 and the second disconnect cylinder 6 are controlled to disconnect the filter rod conveying pipeline, and the receiver side door cylinder 4 is activated to ventilate the receiver 20. This configuration, when the filter rod conveying system becomes blocked, links the transmitting and receiving ends for coordinated operation, improving unblocking efficiency, system automation, and response sensitivity. It also ensures the stability of continuous filter rod conveying, meeting the needs of continuous production. This solves the problems of low unblocking efficiency and incomplete unblocking leading to secondary blockages and production interruptions caused by the need for manual judgment of the blockage location, manual unblocking, and manual resetting after the filter rod conveying pipeline becomes blocked.

[0029] Optional, you can continue to refer to Figure 1 and Figure 2 The filter rod air conveying unblocking system also includes a material level detection module 40; the material level detection module 40 is electrically connected to the receiver 20 and is used to acquire the material level signal of the receiver 20; the control module 30 is electrically connected to the material level detection module 40 and is used to control the receiver 20 to start operation according to the material level signal when the receiver 20 is determined to be in a non-blocked state according to the grating signal.

[0030] In this embodiment, the filter rod pneumatic unblocking system further includes a material level detection module 40. The material level detection module 40 can be understood as a detection component used to detect the amount of filter rods in the receiver 20 in real time and output a material level signal. For example, the material level detection module 40 may include, but is not limited to, a photoelectric sensor that determines the height of the filter rod stacking in the receiver 20 by the continuity of the optical path and outputs a signal. This embodiment of the invention does not impose any limitations on this.

[0031] Specifically, the material level detection module 40 is installed inside the hopper of the receiver 20. The control module 30 is electrically connected to the material level detection module 40, which monitors the material level signal in the hopper of the receiver 20 in real time and transmits the material level signal to the control module 30. The control module 30 receives the material level signal, and when the control module 30 determines that the receiver 20 is in a non-blocking state based on the received grating signal, it controls the receiver 20 to start running according to the received material level signal.

[0032] The control module 30 has preset material level information. When the control module 30 determines that the receiver 20 is in a non-blocking state, and determines that the material level information of the receiver 20 is greater than or equal to the preset material level information based on the received material level signal, it indicates that the receiver 20 is currently in a full-material state and cannot receive filter rods anymore. At this time, the control module 30 controls the receiver 20 to enter a standby state to prevent filter rod overflow and loss caused by the receiver 20 continuing to receive filter rods delivered by the transmitter 10, and to prevent the receiver 20 from becoming blocked. When the control module 30 determines that the receiver 20 is in a non-blocking state, and determines that the material level information of the receiver 20 is less than the preset material level information based on the received material level signal, it indicates that the receiver 20 is not full and can receive filter rods. At this time, the control module 30 controls the receiver 20 to start running and receive filter rods delivered by the transmitter 10.

[0033] For example, the preset material level information can be set to 90% of the hopper capacity of the receiver 20, and this embodiment of the invention does not limit this.

[0034] The filter rod pneumatic conveying and unclogging system provided in this embodiment of the invention includes a material level detection module 40 electrically connected to a receiver 20 to acquire the material level signal from the receiver 20. A control module 30, electrically connected to the material level detection module 40, controls the receiver 20 to start operation based on the material level signal when the receiver 20 is determined to be in a non-clogging state based on the grating signal. This configuration, controlling the receiver 20's automatic start and stop based on its material level, improves the automation level of the filter rod pneumatic conveying and unclogging system, increases filter rod conveying efficiency, and reduces the inefficiency of manual operation. Simultaneously, it prevents filter rod overflow caused by excessively high material levels in the receiver 20, thus avoiding filter rod loss and waste, and reduces idling caused by excessively low material levels in the receiver 20. This optimizes the receiver 20's operating conditions, reduces its energy consumption, and extends its service life. This solves the problem of low filter rod conveying efficiency and discontinuous production caused by the need for manual control of receiver 20's start and stop based on the material level when it is not blocked.

[0035] Optional, you can continue to refer to Figure 1 and Figure 2The filter rod air delivery unblocking system also includes an alarm module 50; the control module 30 is electrically connected to the alarm module 50 and is used to control the alarm module 50 to provide a fault alarm when it is determined that the transmitting pipe is blocked and / or the receiver 20 is blocked.

[0036] In this embodiment, the filter rod air-pumped unblocking system also includes an alarm module 50. The alarm module 50 can be understood as a functional module capable of receiving signals from the control system and converting them into audible and visual warning signals that can be intuitively perceived by staff. The alarm module 50 includes an audible alarm unit and a visual alarm unit, providing dual audible and visual alerts when the transmitting pipe and / or receiver 20 are blocked. Exemplarily, the alarm module 50 includes, but is not limited to, an alarm component formed by an alarm buzzer and a fault indicator light; this embodiment of the invention does not impose limitations on this.

[0037] Specifically, the control module 30 is electrically connected to the alarm module 50. When the control module 30 determines that the transmitting pipe is blocked based on the fiber optic pulse signal and the grating signal, or when the control module 30 determines that the receiver 20 is blocked based on the grating signal, or when the control module 30 determines that both the transmitting pipe and the receiver 20 are blocked, the control module 30 will issue a fault alarm to facilitate on-site personnel to understand the working status of the transmitting pipe and the receiver 20 in a timely manner.

[0038] For example, when the transmitting pipe or receiver 20 is blocked, the control module 30 controls the alarm module 50 to flash a red light and provide a voice prompt indicating that the corresponding equipment is blocked, in order to alert on-site personnel. When both the transmitting pipe and receiver 20 are operating normally, the control module 30 controls the alarm module 50 to remain constantly lit in green and does not provide a voice prompt.

[0039] The filter rod pneumatic conveying unblocking system provided in this embodiment of the invention, by setting up an alarm module 50 and electrically connecting the control module 30 to the alarm module 50, controls the alarm module 50 to issue a fault alarm when it is determined that the transmitting pipe is blocked and / or the receiver 20 is blocked. This setup allows the alarm signal to directly reflect the working status of the receiver 20 and the transmitting pipe, enabling rapid detection of blockage faults and preventing production safety issues caused by operators failing to promptly detect equipment blockages and making incorrect operations. This ensures the stable operation of the unblocking system. It also reduces the workload of manual monitoring and inspection, making it suitable for continuous and automated operation scenarios of filter rod pneumatic conveying.

[0040] In addition, the filter rod pneumatic conveying unclogging system also includes a human-machine interface module (not shown in the figure). This module includes an automatic / manual switch, a manual unclogging button, and a reset button. The automatic / manual switch allows switching between automatic and manual unclogging modes. When in manual unclogging mode, the manual unclogging button and reset button control the filter rod pneumatic conveying unclogging system to perform the unclogging operation and reset it after unclogging is complete. This design facilitates unclogging operations in scenarios requiring manual unclogging, providing further assurance for filter rod unclogging and preventing production interruptions caused by the inability to unclogging filter rods in the automatic unclogging mode.

[0041] Based on the same inventive concept, embodiments of the present invention also provide a control method for a filter rod air delivery unclogging system. Figure 3 This is a flowchart of a control method for a first-type filter rod air-feeding and unclogging system provided in an embodiment of the present invention. This control method can be applied to any of the filter rod air-feeding and unclogging systems provided in the above-described optional embodiments. Figure 3 As shown, the control method of the filter rod air delivery unclogging system includes: S110: Acquire fiber pulse signals and grating signals.

[0042] Specifically, the transmitter fiber optic sensing module, located in the transmitter, senses the movement of the filter rod and outputs fiber optic pulse signals. The receiver grating sensing module, located in the receiver, detects the grating signals emitted by the receiver. The control module is electrically connected to both the transmitter fiber optic sensing module and the receiver grating sensing module to acquire the fiber optic pulse signals and grating signals.

[0043] The fiber optic pulse signal can be understood as the pulsed electrical signal output by the transmitter when the optical path changes due to the normal delivery of a filter rod within the transmitting tube. The grating signal can be understood as the grating signal output by the receiver based on the degree of occlusion of the grating detection area by the filter rod. When the filter rod passes through the detection area rapidly, the signal is intermittently triggered; if the filter rod accumulates and blocks the grating, it will continuously obstruct the grating, and the grating signal will remain triggered for a longer period.

[0044] S120. When the transmitting pipe is determined to be blocked based on the fiber pulse signal and grating signal, the transmitter is controlled to stop feeding, the first and second disconnect cylinders are controlled to disconnect the filter rod conveying pipe, and the first and second air blowing valves are controlled to start.

[0045] Specifically, the control module receives fiber optic pulse signals from the transmitter transmitted by the transmitter's fiber optic sensing module and grating signals from the receiver transmitted by the receiver's grating sensing module. Based on these signals, it determines the blockage status of the transmission pipe. When the control module determines the transmission pipe is blocked, it immediately stops the transmitter from feeding material. Simultaneously, it activates the first and second disconnect cylinders, which work together to disconnect the filter rod delivery pipe. It then activates the first air-blowing valve to purge the transmission pipe along the filter rod delivery direction. Simultaneously, it activates the second air-blowing valve to purge the filter rod delivery pipe in the opposite direction on the receiver side, preventing filter rod debris blown by the first air-blowing valve from entering the receiver and causing blockage.

[0046] The first disconnect cylinder is located at the junction of the filter rod conveying pipe near the transmitter, and the second disconnect cylinder is located at the junction of the filter rod conveying pipe near the receiver. Under the control of the control module, the first disconnect cylinder drives the filter rod conveying pipe on the transmitter side, and the second disconnect cylinder drives the filter rod conveying pipe on the receiver side. The two work together to disconnect the filter rod conveying pipe of the filter rod air delivery unblocking system.

[0047] S130. When the receiver is determined to be in a blocked state based on the grating signal, the cut-off cylinder is controlled to intercept the filter rod, the first disconnect cylinder and the second disconnect cylinder are controlled to disconnect the filter rod delivery pipe, and the receiver side door cylinder is controlled to start to empty the receiver.

[0048] Specifically, the control module determines the receiver's blockage status based on the grating signal. When the control module determines that the receiver is blocked, it activates the cut-off cylinder. This cylinder, located near the receiver, intercepts the filter rods being fed by the transmitter, preventing them from continuing to enter the receiver. Simultaneously, it activates the first and second disconnect cylinders, which work together to disconnect the filter rod delivery pipe. This also activates the receiver side door cylinder, opening the receiver's side door and exposing the internal cavity, allowing the blocked filter rods and debris to be emptied.

[0049] The control method for the filter rod pneumatic conveying unblocking system provided in this invention acquires fiber optic pulse signals and grating signals. When the transmitting pipe is determined to be blocked based on these signals, the transmitter is stopped from feeding material. The first and second disconnect cylinders are activated to disconnect the filter rod conveying pipe, and the first and second air-blowing valves are activated. When the receiver is determined to be blocked based on the grating signal, the cut-off cylinder intercepts the filter rod, the first and second disconnect cylinders are activated to disconnect the filter rod conveying pipe, and the receiver side door cylinder is activated to vent the receiver. By employing this technical solution, when the filter rod pneumatic conveying system becomes blocked, the transmitter and receiver are linked and controlled to work together, improving unblocking efficiency, system automation, and response sensitivity. This ensures the stability of continuous filter rod conveying and meets the needs of continuous production. It solves the problems of low unblocking efficiency and incomplete unblocking leading to secondary blockages and production interruptions caused by the need for manual judgment of the blockage location, manual unblocking, and manual resetting after the filter rod conveying pipe becomes blocked.

[0050] Optionally, determining whether the transmitting channel is blocked based on the fiber pulse signal and the grating signal includes: When an optical fiber pulse signal is received but no grating signal is received, the transmitting channel is determined to be blocked.

[0051] Specifically, the transmitter's fiber optic sensing module transmits fiber optic pulse signals to the control module, and the receiver's grating sensing module transmits grating signals to the control module. When the control module receives the fiber optic pulse signal, it indicates that the signal is valid, and the transmitter can deliver the filter rod normally, meaning the transmitter is in a non-blocking state. However, if the control module cannot receive the grating signal, it indicates that the receiver is not sending a grating signal, meaning no filter rod has reached the receiver to trigger the grating signal, and the receiver has not received the filter rod. Since the transmitter is delivering the filter rod normally, but the receiver is not receiving it, it can be determined that the filter rod is blocked and stagnant within the transmission pipe after being output from the transmitter, unable to continue being delivered to the receiver; that is, the transmission pipe is in a blocked state.

[0052] Determining a receiver's blocked state based on the grating signal includes: If the trigger duration of the grating signal exceeds the preset trigger duration, the receiver is determined to be in a blocked state.

[0053] Specifically, when the control module receives the grating signal, it indicates that the grating signal has been successfully triggered and the filter rod reaches the receiver. When the receiver is not blocked, the filter rods pass through the grating area quickly one by one, briefly and intermittently blocking the grating, and the grating signal received by the control module is intermittently triggered. When the triggering duration of the grating signal exceeds the preset triggering duration and is in a continuous triggering state, it indicates that the filter rod is continuously blocking the grating detection position. At this time, it indicates that the filter rod is stuck in the receiver, so it can be determined that the receiver is in a blocked state.

[0054] For example, after receiving the fiber optic pulse signal, the control module starts timing. If a grating signal is received after 5 seconds of timing, it is determined that the filter rod delivery is not blocked. If no grating signal is received after 5 seconds of timing, it is determined that the transmitting pipe is blocked. When the control module receives the grating signal, if the continuous triggering time of the grating signal is greater than 5 seconds, it is determined that the receiver is blocked.

[0055] The control method for the filter rod pneumatic conveying and unblocking system provided in this invention determines that the transmitting pipe is blocked when an optical fiber pulse signal is received but no grating signal is received, and the receiver is blocked when the trigger duration of the grating signal exceeds a preset trigger duration. By leveraging the characteristic differences between the optical fiber pulse signal and the grating signal, the location of the blockage during filter rod conveying is accurately determined. The determination logic is simple, has strong anti-interference capabilities, improves the accuracy and reliability of blockage location determination, reduces the probability of false positives and false negatives, and solves the problem that a single signal cannot determine the blockage location. Based on different blockage locations, the transmitting and receiving ends are coordinated to perform targeted unblocking actions, improving unblocking efficiency and achieving a closed loop of judgment and unblocking control. This enhances the automation level of the filter rod pneumatic conveying and unblocking system and solves the problems of low efficiency and large errors in manual blockage location determination.

[0056] Figure 4 This is a flowchart of a control method for a second type of filter rod air-feeding unblocking system provided in this embodiment of the invention. This embodiment details the steps following the steps after determining that the transmitting pipe is blocked based on fiber optic pulse signals and grating signals: controlling the transmitter to stop feeding, controlling the first and second disconnect cylinders to disconnect the filter rod conveying pipe, and controlling the first and second air-blowing valves to start. Figure 4 As shown, the control method includes: S210: Acquire fiber pulse signals and grating signals.

[0057] S220. When the transmitting pipe is determined to be blocked based on the fiber pulse signal and grating signal, the transmitter is controlled to stop feeding, the first and second disconnect cylinders are controlled to disconnect the filter rod conveying pipe, and the first and second air blowing valves are controlled to start.

[0058] S230, Control the first air blowing valve to reset after the first preset blowing time is reached.

[0059] Specifically, the control module is set with a first preset purging time. For example, the first preset purging time can be 10 seconds, and this embodiment of the invention does not limit this. After the first air-blowing valve is activated, the filter rod conveying pipeline is continuously purged. When the operating time of the first air-blowing valve reaches the first preset purging time, the control module controls the first air-blowing valve to return to its initial state, stops purging, and the operation of the first air-blowing valve ends.

[0060] S240: Control the second air blowing valve to reset after the second preset blowing time is reached.

[0061] Specifically, the control module is set with a second preset purging time. For example, the second preset purging time can also be 10 seconds, and this embodiment of the invention does not limit this. After the second air-blowing valve is started, the second air-blowing valve continuously purifies the filter rod conveying pipeline. When the running time of the second air-blowing valve reaches the second preset purging time, the control module controls the second air-blowing valve to return to its initial state and stop purging, thus ending the operation of the second air-blowing valve.

[0062] It should be noted that the second air-blowing valve should be reset only after the first air-blowing valve has been reset, or the second preset purging time should be longer than the first preset purging time. This is to prevent the first air-blowing valve from continuing to purge after the second air-blowing valve has been reset, which would cause the filter rod debris purged by the first air-blowing valve to continue to enter the receiver side.

[0063] S250, control the first disengagement cylinder and the second disengagement cylinder to reset.

[0064] Specifically, after both the first and second air-blowing valves are reset, i.e. after the filter rod conveying pipeline is cleared, the control module controls the first and second disconnect cylinders to work together to restore both to their initial state, so that the filter rod conveying pipeline connection is restored.

[0065] For example, the actions of the first and second disconnect cylinders to connect the filter rod delivery pipe include, but are not limited to, the synchronous retraction of the first and second disconnect cylinders, which bidirectionally pulls the delivery pipe to move horizontally, so that the filter rod delivery pipe is reconnected. This embodiment of the invention does not limit this.

[0066] S260, control the transmitter to start operation.

[0067] Specifically, after the filter rod delivery pipeline is restored to the connected state, the transmitter is started to operate and deliver the filter rod to the receiver. The control module continues to acquire fiber pulse signals and grating signals and determines the blockage status of the transmission pipeline based on the fiber pulse signals and grating signals.

[0068] The control method for the filter rod pneumatic conveying unblocking system provided in this invention involves controlling the transmitter to stop feeding material when the transmitting pipe is determined to be blocked based on fiber optic pulse signals and grating signals. This is followed by controlling the first and second disconnect cylinders to disconnect the filter rod conveying pipe, activating the first and second air-blowing valves, resetting the first air-blowing valve after a first preset purging time, resetting the second air-blowing valve after a second preset purging time, resetting the first and second disconnect cylinders, and finally starting the transmitter. This approach automatically resets all components and automatically starts the transmitter after unblocking, forming a closed-loop control system encompassing blockage identification, unblocking execution, unblocking reset, and production resumption. This improves the automation level of the filter rod pneumatic conveying unblocking system, ensures production continuity, and increases production conveying efficiency. It also solves the problems of long downtime and operational interruptions caused by manual reset after unblocking, as well as secondary faults caused by reset abnormalities due to manual operation.

[0069] Figure 5 This is a flowchart of the control method for the third type of filter rod air delivery unblocking system provided in this embodiment of the invention. This embodiment of the invention elaborates on the following steps after determining that the receiver is blocked based on the grating signal: controlling the cut-off cylinder to intercept the filter rod, controlling the first and second disconnect cylinders to disconnect the filter rod delivery pipeline, and controlling the receiver side door cylinder to start to empty the receiver. Figure 5 As shown, the control method includes: S310: Acquire fiber pulse signals and grating signals.

[0070] S320. When the receiver is determined to be in a blocked state based on the grating signal, the cut-off cylinder is controlled to intercept the filter rod, the first and second disconnect cylinders are controlled to disconnect the filter rod delivery pipe, and the receiver side door cylinder is controlled to start to empty the receiver.

[0071] S330: Control the receiver to reset after the preset emptying time is reached.

[0072] Specifically, the control module has a preset purging time, which can be understood as the operating time of the air delivery system inside the receiver. After the receiver side door cylinder is activated, the receiver side door opens, and the internal air delivery system starts, expelling all the filter rods that are stuck or blocked inside the receiver. When the preset purging time is reached, the internal air delivery system stops operating and returns to its initial state.

[0073] For example, the preset emptying time can be 10 seconds, and this embodiment of the invention does not limit it.

[0074] S340: Control the first and second disengagement cylinders to reset after a preset time.

[0075] Specifically, after the first and second disconnect cylinders have reached the disconnection time set by the control module, the control module controls the first and second disconnect cylinders to work together to restore them to their initial positions, so that the filter rod delivery pipeline can be reconnected.

[0076] S350, control the receiver side door cylinder reset.

[0077] Specifically, after the receiver is emptied, the control module controls the receiver side door cylinder to perform a reset action, so that the receiver side door is closed and the receiver returns to a sealed working state, preventing the filter rods received by the receiver later from being discharged from the receiver side door.

[0078] S360, control the stop cylinder reset.

[0079] Specifically, after the receiver returns to normal operation, it is no longer necessary to intercept the filter rods emitted by the transmitter. The control module controls the cut-off cylinder to retract and return to the initial state.

[0080] The control method for the filter rod pneumatic conveying unblocking system provided in this invention, when determining that the receiver is blocked based on the grating signal, controls the cut-off cylinder to intercept the filter rod, controls the first and second disconnect cylinders to disconnect the filter rod delivery pipeline, and controls the receiver side door cylinder to start to empty the receiver. After the receiver reaches a preset emptying time, it resets. Then, the first and second disconnect cylinders reset after a preset time, the receiver side door cylinder resets, and finally, the cut-off cylinder resets. This scheme automatically resets all components on the receiver side after unblocking, forming a closed-loop control of blockage identification, unblocking execution, and unblocking reset, ensuring the receiver's working status and avoiding filter rod delivery interruptions due to receiver failure. It improves the automation level of the filter rod pneumatic conveying unblocking system, solving the problems of long downtime and operational interruptions caused by manual reset after unblocking, as well as secondary faults caused by reset abnormalities due to manual operation.

[0081] Figure 6 This is a flowchart of a control method for a fourth type of filter rod pneumatic conveying and unclogging system provided in an embodiment of the present invention. The filter rod pneumatic conveying and unclogging system further includes a material level detection module, which is electrically connected to a receiver and used to acquire material level information from the receiver. Figure 6 As shown, the control method also includes: S410: Acquire fiber pulse signals and grating signals.

[0082] S420. When the receiver is determined to be in a non-blocking state based on the grating signal, the material level signal is acquired.

[0083] Specifically, the material level detection module is installed inside the receiver's hopper. The control module is electrically connected to the material level detection module, which monitors the material level signal in the receiver's hopper in real time and transmits the signal to the control module. The control module acquires the material level signal when it determines that the receiver is in a non-blocking state based on the received grating signal. The material level signal can be understood as the material signal in the receiver's hopper detected and transmitted by the material level detection module.

[0084] S430: Control the receiver to start operation based on the material level signal.

[0085] Specifically, the control module receives the material level signal. When the material level signal reaches the operating conditions, the control module outputs a control command to the receiver to start the operation.

[0086] The control method for the filter rod pneumatic conveying and unclogging system provided in this invention acquires fiber optic pulse signals and grating signals. Then, based on the grating signal, when the receiver is determined to be in a non-clogging state, a material level signal is acquired, and the receiver is started and operated according to the material level signal. By adopting this technical solution, the automatic start and stop of the receiver is controlled based on the material level, improving the automation level of the filter rod pneumatic conveying and unclogging system, increasing the filter rod conveying efficiency, and reducing the problems of low efficiency due to manual monitoring and control. This solves the problem of low filter rod conveying efficiency and discontinuous production caused by the need for manual control of the receiver's start and stop based on the material level in a non-clogging state.

[0087] Figure 7 This is a flowchart of the control method for the fifth type of filter rod pneumatic conveying and unclogging system provided in this embodiment of the invention. This embodiment of the invention provides a detailed explanation of the specific process of controlling the receiver to start operation based on the material level signal. For example... Figure 7 As shown, the control method specifically includes: S510: Acquire fiber pulse signals and grating signals.

[0088] S520: When the receiver is determined to be in a non-blocking state based on the grating signal, the material level signal is acquired.

[0089] S530: Determine the material level information of the receiver based on the material level signal.

[0090] Specifically, after receiving the material level signal, the control module can determine the material level information in the receiver's hopper based on the received signal, and control the receiver's operating status accordingly. The material level information can be understood as the height of the material in the receiver's hopper.

[0091] S540: When the material level information is greater than or equal to the preset material level information, the control receiver enters the standby state.

[0092] Specifically, the control module is set with preset material level information. When the control module determines that the receiver is in a non-blocking state, and determines that the material level information of the receiver is greater than or equal to the preset material level information based on the received material level signal, it indicates that the receiver is in a full material state and can no longer receive filter rods. At this time, the receiver is controlled to enter a standby state to prevent the filter rod overflow and loss problem caused by the receiver continuing to receive filter rods delivered by the transmitter and the risk of receiver blockage.

[0093] S550: When the material level information is less than the preset material level information, the controller starts operation.

[0094] Specifically, when the control module determines that the receiver is in a non-blocking state and the control module determines that the receiver's material level information is less than the preset material level information based on the received material level signal, it indicates that the receiver is not full and can receive filter rods. At this time, the control module controls the receiver to start running and receive the filter rods delivered by the transmitter.

[0095] The control method for the filter rod pneumatic conveying and unclogging system provided in this invention determines the material level information of the receiver based on the material level signal. When the material level information is greater than or equal to a preset material level information, the receiver is controlled to enter a standby state; when the material level information is less than the preset material level information, the receiver is controlled to start operation. By adopting the above technical solution, controlling the operating state of the receiver based on the material level information in the receiver can prevent filter rod overflow caused by excessively high material levels, thus preventing filter rod damage and waste. Simultaneously, it reduces the receiver's idling phenomenon caused by excessively low material levels, optimizes the receiver's operating conditions, reduces energy consumption, and extends the receiver's service life. It solves the problems of overflow clogging and increased energy consumption due to idling in the receiver.

[0096] Figure 8 This is a flowchart of a control method for a sixth type of filter rod air-feeding unclogging system provided in an embodiment of the present invention. The filter rod air-feeding unclogging system also includes an alarm module. Figure 8 As shown, the control method also includes: S610. When an optical fiber pulse signal is received but no grating signal is received, the transmitting channel is determined to be blocked.

[0097] S620. When the trigger duration of the grating signal exceeds the preset trigger duration, the receiver is determined to be in a blocked state.

[0098] S630. When it is determined that the transmitting pipe is blocked and / or the receiver is blocked, the control alarm module shall issue a fault alarm prompt.

[0099] Specifically, the control module and the alarm module are electrically connected. When the control module determines that the transmitting pipe is blocked based on the fiber optic pulse signal and the grating signal, or when the control module determines that the receiver is blocked based on the grating signal, or when the control module determines that both the transmitting pipe and the receiver are blocked, the alarm module will issue a fault alarm to facilitate on-site personnel's timely understanding of the operating status of the transmitting pipe and the receiver. The alarm module includes an audible alarm unit and a visual alarm unit, providing dual audible and visual alerts when the transmitting pipe and / or receiver are blocked.

[0100] The control method for the filter rod pneumatic conveying unblocking system provided in this invention controls the alarm module to issue a fault alarm when the transmitting pipe is determined to be blocked, and / or the receiver is blocked. This approach enables rapid detection of blockage faults, preventing operational errors caused by operators failing to promptly detect blockages and ensuring the stable operation of the unblocking system. It also reduces the workload of manual monitoring and inspection, making it suitable for continuous and automated operation scenarios of filter rod pneumatic conveying.

[0101] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A filter rod air-assisted unclogging system, characterized in that, It includes a transmitter fiber optic sensing module, a receiver grating sensing module, a cutoff cylinder, a receiver side door cylinder, a first disconnect cylinder, a second disconnect cylinder, a first air blow valve, a second air blow valve, and a control module; The transmitter fiber optic sensing module is used to detect the fiber optic pulse signal emitted by the transmitter, and the receiver grating sensing module is used to detect the grating signal emitted by the receiver; the first disconnect cylinder and the first air blow valve are located on the side close to the transmitter, and the cut-off cylinder, the second disconnect cylinder and the second air blow valve are located on the side close to the receiver. The control module is electrically connected to the transmitter fiber optic sensing module, the receiver grating sensing module, the cut-off cylinder, the receiver side door cylinder, the first disconnect cylinder, the second disconnect cylinder, the first air blower, and the second air blower. When the transmission pipe is determined to be blocked based on the fiber optic pulse signal and the grating signal, the control module controls the transmitter to stop feeding, controls the first and second disconnect cylinders to activate to disconnect the filter rod delivery pipe, and controls the first and second air blower valves to activate. When the receiver is determined to be blocked based on the grating signal, the control module controls the cut-off cylinder to intercept the filter rod, controls the first and second disconnect cylinders to activate to disconnect the filter rod delivery pipe, and controls the receiver side door cylinder to activate to ventilate the receiver.

2. The filter rod air-feed unclogging system according to claim 1, characterized in that, The filter rod air conveying unblocking system also includes a material level detection module; The material level detection module is electrically connected to the receiver and is used to acquire the material level signal from the receiver; The control module is electrically connected to the material level detection module and is used to control the receiver to start operation based on the material level signal when the receiver is determined to be in a non-blocking state based on the grating signal.

3. The filter rod air-feed unclogging system according to claim 1, characterized in that, The filter rod air delivery unblocking system also includes an alarm module; The control module is electrically connected to the alarm module and is used to control the alarm module to issue a fault alarm when it is determined that the transmitting pipe is blocked and / or the receiver is blocked.

4. A control method for a filter rod pneumatic unclogging system, characterized in that, The filter rod air-feeding unclogging system according to any one of claims 1-3, wherein the control method of the filter rod air-feeding unclogging system includes: Acquire fiber pulse signals and grating signals; When the transmitting pipe is determined to be blocked based on the optical fiber pulse signal and the grating signal, the transmitter is controlled to stop feeding, the first and second disconnect cylinders are controlled to disconnect the filter rod conveying pipe, and the first and second air blowing valves are controlled to start. When the receiver is determined to be blocked based on the grating signal, the cut-off cylinder is controlled to intercept the filter rod, the first disconnect cylinder and the second disconnect cylinder are controlled to disconnect the filter rod delivery pipe, and the receiver side door cylinder is controlled to start to empty the receiver.

5. The control method according to claim 4, characterized in that, When the transmitter is determined to be blocked based on the fiber optic pulse signal and the grating signal, the transmitter is controlled to stop feeding, the first and second disconnect cylinders are controlled to disconnect the filter rod conveying pipe, and the first and second air-blowing valves are controlled to start. The process further includes: The first air-blowing valve is reset after the first preset purging time is reached; The second air-blowing valve is reset after the second preset purging time is reached; Control the first and second release cylinders to reset; Control the transmitter to start operation.

6. The control method according to claim 4, characterized in that, When the receiver is determined to be blocked based on the grating signal, the following steps are taken: The cut-off cylinder is controlled to intercept the filter rod; the first and second disconnect cylinders are controlled to disconnect the filter rod delivery pipe; and the receiver side door cylinder is activated to purge the receiver. The process also includes: The receiver is controlled to reset after a preset emptying time is reached; The first and second disengagement cylinders are controlled to reset after a preset time. Control the receiver side door cylinder to reset; Control the reset of the cut-off cylinder.

7. The control method according to claim 4, characterized in that, The filter rod air conveying unblocking system also includes a material level detection module, which is electrically connected to the receiver and is used to obtain the material level information of the receiver; The control method further includes: When the receiver is determined to be in a non-blocking state based on the grating signal, the material level signal is acquired. The receiver is started and operated based on the material level signal.

8. The control method according to claim 7, characterized in that, The step of controlling the receiver to start operation based on the material level signal includes: The material level information of the receiver is determined based on the material level signal; When the material level information is greater than or equal to the preset material level information, the receiver is controlled to enter standby mode; When the material level information is less than the preset material level information, the receiver is controlled to start running.

9. The control method according to claim 4, characterized in that, The step of determining that the transmitting channel is blocked based on the fiber pulse signal and the grating signal includes: When the fiber pulse signal is received but the grating signal is not received, it is determined that the transmission channel is blocked. The step of determining that the receiver is in a blocked state based on the grating signal includes: When the trigger duration of the grating signal exceeds the preset trigger duration, the receiver is determined to be in a blocked state.

10. The control method according to claim 4, characterized in that, The filter rod air delivery unblocking system also includes an alarm module; The control method further includes: When it is determined that the transmitting pipe is blocked, and / or the receiver is blocked, the alarm module is controlled to issue a fault alarm.

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