Air pressure control method, device and equipment of filter stick air conveying system and storage medium

Abstract

The invention discloses an air pressure control method, device and equipment of a filter stick air conveying system and a storage medium, and relates to the filter stick air conveying control technology. The method comprises the steps that in response to a starting signal of the filter stick air conveying system, an air pressure value of an outlet of a transmitting end is obtained; determining whether the transmitting end air pressure is abnormal according to the transmitting end outlet air pressure value and the transmitting end air pressure standard interval; if the transmitting end air pressure is abnormal, transmitting end air pressure abnormity warning is carried out; acquiring a speed measurement value of a receiving end; determining whether the receiving end speed is abnormal according to the receiving end speed measurement value and the receiving end speed standard interval; if the speed of the receiving end is abnormal, alarming the speed abnormity of the receiving end; acquiring a pressure relief end air pressure value, and determining whether the pressure relief end air pressure is abnormal according to the pressure relief end air pressure value and the pressure relief end air pressure standard interval; and if the air pressure at the pressure relief end is abnormal, alarming the abnormal air pressure at the pressure relief end. The pneumatic conveying pipeline can be automatically and rapidly detected, and the maintenance efficiency of the pneumatic conveying pipeline is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filter rod air conveying control, and in particular to an air pressure control method, device, equipment and storage medium of a filter rod air conveying system. Background Art

[0002] The filter rod air conveying system is a bridge in the cigarette industry that realizes automatic remote air conveyance of filter rods from the transmitter to the cigarette making machine, replacing manual transfer of filter rods.

[0003] In actual production, due to the long distance of the filter rod air delivery pipeline, the remote air delivery pressure of the filter rod is affected by distance, air tightness, residue, etc., which can easily cause problems such as unstable filter rod air delivery pressure and abnormal filter rod conveying line speed, leading to equipment failure and filter rod quality defects, affecting the filter rod air delivery efficiency.

[0004] Currently, air ducts are inspected and maintained manually on a regular basis. Improving the inspection and maintenance efficiency of air ducts has become an urgent issue to be addressed. Summary of the Invention

[0005] The present invention provides an air pressure control method, device, equipment and storage medium for a filter rod air conveying system, so as to solve the problem of low maintenance efficiency during the current manual regular maintenance of air conveying pipelines.

[0006] According to one aspect of the present invention, a method for controlling air pressure in a filter rod air conveying system is provided, wherein the filter rod air conveying system includes a transmitting end, a receiving end, and a pressure relief end, and the method includes:

[0007] In response to a start signal of the filter rod air conveying system, an air pressure value at an outlet of the transmitting end is obtained, where the air pressure value at the outlet of the transmitting end is a measured value of the air pressure at the outlet of the transmitting end;

[0008] Determining whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range; if the transmitter air pressure is abnormal, issuing a transmitter air pressure abnormality alarm;

[0009] Obtaining a receiving end speed measurement value, wherein the receiving end speed measurement value is a measurement value of the air delivery speed of the filter rod at the receiving end inlet;

[0010] determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; and issuing a receiving end speed abnormality alarm if the receiving end speed is abnormal;

[0011] Obtaining a pressure value at a pressure relief end, wherein the pressure value at the pressure relief end is a measured value of the pressure at the pressure relief end outlet;

[0012] Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard pressure range at the pressure relief end; if the pressure at the pressure relief end is abnormal, issue an abnormal pressure alarm at the pressure relief end.

[0013] According to another aspect of the present invention, there is provided an air pressure control device for a filter rod air conveying system, wherein the filter rod air conveying system comprises a transmitting end, a receiving end and a pressure relief end, and the device comprises:

[0014] a transmitter outlet air pressure value acquisition unit, configured to acquire a transmitter outlet air pressure value in response to a start signal of the filter rod air conveying system, wherein the transmitter outlet air pressure value is a measured value of the transmitter outlet air pressure;

[0015] a transmitter detection unit, configured to determine whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range; and if the transmitter air pressure is abnormal, issue a transmitter air pressure abnormality alarm;

[0016] A receiving end speed measurement value acquisition unit, configured to acquire a receiving end speed measurement value, wherein the receiving end speed measurement value is a measurement value of the air delivery speed of the filter rod at the receiving end inlet;

[0017] a receiving end detection unit, configured to determine whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; and if the receiving end speed is abnormal, issuing a receiving end speed abnormality alarm;

[0018] A pressure relief end air pressure value acquisition unit, used to acquire the pressure relief end air pressure value, wherein the pressure relief end air pressure value is a measured value of the air pressure at the pressure relief end outlet;

[0019] The pressure relief end detection unit is used to determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the pressure standard range of the pressure relief end; if the pressure at the pressure relief end is abnormal, an abnormal pressure alarm is issued.

[0020] According to another aspect of the present invention, there is provided an air pressure control device for a filter rod air conveying system, characterized in that the filter rod air conveying system includes a transmitting end, a receiving end, and a pressure relief end, an air conveying duct is provided between the transmitting end and the pressure relief end, and an air conveying duct is provided between the pressure relief end and the receiving end, and the device includes: a detection module, a control module, a display module, and an execution module;

[0021] The detection module includes a transmitting end pressure sensor, a pressure relief end pressure sensor and a receiving end photoelectric switch;

[0022] The transmitting end pressure sensor is connected to the transmitting end; the pressure relief end pressure sensor is connected to the pressure relief end; the receiving end photoelectric switch is connected to the receiving end;

[0023] The transmitting end pressure sensor, the pressure relief end pressure sensor and the receiving end photoelectric switch are respectively connected to the control module;

[0024] The control module is also connected to the display module and the execution module; the controller is used to execute the air pressure control method of the filter rod air conveying system described in any embodiment of the present invention.

[0025] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the air pressure control method of the filter rod air conveying system described in any embodiment of the present invention when executed.

[0026] According to the technical solution of the embodiment of the present invention, the filter rod air conveying system includes a transmitting end, a receiving end and a pressure relief end. In response to the start-up signal of the filter rod air conveying system, the transmitting end outlet air pressure value is obtained, and the transmitting end outlet air pressure value is the measured value of the transmitting end outlet air pressure; whether the transmitting end air pressure is abnormal is determined according to the transmitting end outlet air pressure value and the transmitting end air pressure standard interval; if the transmitting end air pressure is abnormal, an abnormal transmitting end air pressure alarm is issued; the receiving end speed measurement value is obtained, and the receiving end speed measurement value is the measured value of the air conveying speed of the filter rod at the receiving end inlet; whether the receiving end speed is abnormal is determined according to the receiving end speed measurement value and the receiving end speed standard interval; if the receiving end speed is abnormal, an abnormal receiving end speed alarm is issued; the pressure relief end air pressure value is obtained, and the pressure relief end air pressure value is the measured value of the air pressure at the pressure relief end outlet; whether the pressure relief end air pressure is abnormal is determined according to the pressure relief end air pressure value and the pressure relief end air pressure standard interval; if the pressure relief end air pressure is abnormal, an abnormal pressure relief end air pressure alarm is issued. Compared to current manual air duct inspection and maintenance, the technical solution provided by the embodiments of the present invention can detect the air pressure and filter rod speed in the air duct at the transmitting end, pressure relief end, and receiving end of the air duct. Based on the detected air pressure value at the transmitting end outlet, the speed value at the receiving end, and the air pressure value at the pressure relief end, the status of the transmitting end, receiving end, and pressure relief end are respectively checked and an alarm is issued when an abnormality occurs. This achieves automated and rapid inspection of the air duct and improves the efficiency of air duct inspection and maintenance.

[0027] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1Schematic diagram of the structure of an air pressure control device of a filter rod air conveying system provided by an embodiment of the present invention;

[0030] Figure 2 This is a flow chart of an air pressure control method for a filter rod air conveying system provided by an embodiment of the present invention;

[0031] Figure 3 1 is a flow chart of another air pressure control method for a filter rod air conveying system provided by an embodiment of the present invention;

[0032] Figure 4 2 is a schematic structural diagram of an air pressure control device for a filter rod air conveying system according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic structural diagram of an air pressure control device for another filter rod air conveying system according to an embodiment of the present invention;

[0034] Figure 6 1 is a schematic diagram of the structure of a transmitter component provided by an embodiment of the present invention;

[0035] Figure 7 1 is a schematic structural diagram of a pressure relief end assembly provided by an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the receiving end component structure provided by an embodiment of the present invention;

[0037] Figure 9 It is an exploded diagram of a receiving end component provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or apparatuses.

[0040] The filter rod air conveying system is a bridge in the cigarette industry that realizes automatic remote air conveyance of filter rods from the transmitter to the cigarette making machine, replacing manual transfer of filter rods.

[0041] In actual production, due to the long distance of the filter rod air delivery pipeline, the remote air delivery pressure of the filter rod is affected by distance, air tightness, residue, etc., which can easily cause problems such as unstable filter rod air delivery pressure and abnormal filter rod conveying line speed, leading to equipment failure and filter rod quality defects, affecting the filter rod air delivery efficiency.

[0042] The ZF25 filter rod transmitter and receiver, currently the industry's leading model, cannot directly provide feedback on the operating status of the filter rod air conveying system. This lacks process control during the air conveying process, making it difficult for maintenance personnel to identify faults. This results in low maintenance efficiency and long repair times for the filter rod air conveying system. Furthermore, due to the long length of the air conveying pipeline, some faults require simultaneous diagnosis by multiple maintenance personnel, significantly impacting equipment maintenance efficiency.

[0043] The air pressure control method for the filter rod air conveying system provided by the embodiment of the present invention can effectively solve the problem of lack of process control in the current filter rod air conveying process and improve the operating efficiency of the equipment.

[0044] The air pressure control method for a filter rod air delivery system provided in an embodiment of the present invention measures the pressure and speed values associated with the filter rod air delivery pressure in real time, enabling real-time monitoring, feedback, and display of the filter rod air delivery pressure, thereby improving the visualization and intelligence of the filter rod air delivery system. To address the problems of the filter rod air delivery system's lack of an abnormal air pressure alarm function and the inconvenience of maintenance and adjustment caused by the long span of the air delivery pipeline, an abnormal alarm related to air delivery pressure and speed, as well as automatic adjustment of the air pressure at the pressure relief end, is added to improve maintenance efficiency, reduce maintenance time, and enhance the efficiency of filter rod air delivery inspection and repair.

[0045] Figure 1 A schematic structural diagram of an air pressure control device for a filter rod air conveying system provided in an embodiment of the present invention includes a detection module 100 , a control module 200 , a display module 300 and an execution module 400 .

[0046] The detection module 100 detects the air pressure at the transmitting end, the speed at the receiving end and the air pressure at the pressure relief end in real time, and feeds back the detected data to the control module 200 in real time; after the control module 200 receives the information output by the detection module 100, on the one hand, it outputs a signal to the execution module 400 to drive the execution module 400 to perform the task, and on the other hand, it displays the processed information including real-time measurement values, fault signals, and the operating status of the air conveying system in real time at the display module 300; the display module 300 displays the information output by the control module 200 in real time, and can modify the control range of the control module 200 by modifying the standard range setting value of the air pressure at the transmitting end, the standard range setting value of the speed at the receiving end and the standard range setting value of the air pressure at the pressure relief end, etc., to realize the closed control of the air pressure of the filter rod air conveying system, improve the process control accuracy of the filter rod air conveying system, reduce the number of equipment failure shutdowns, and achieve the purpose of improving the filter rod air conveying efficiency.

[0047] Figure 2 This is a flow chart of an air pressure control method for a filter rod air delivery system provided by an embodiment of the present invention. This embodiment is applicable to the situation where the status of the filter rod air delivery pipeline is monitored and repaired in real time. The method can be executed by an air pressure control device for the filter rod air delivery system. The air pressure control device for the filter rod air delivery system can be implemented in the form of hardware and / or software. The filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end. Figure 2 As shown, the method includes:

[0048] Step S101: In response to a start signal of a filter rod air conveying system, an outlet pressure value of a transmitter is obtained, where the outlet pressure value of the transmitter is a measured value of the outlet pressure of the transmitter.

[0049] When the filter rod air conveying system starts, the filter rod air conveying system enters operation mode and conveys the filter rods. The transmitter outlet pressure value is obtained. The transmitter outlet pressure value can be measured by the transmitter pressure sensor installed at the transmitter, and the measured transmitter outlet pressure value is sent to the detection module.

[0050] Step S102: determining whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range; if the transmitter air pressure is abnormal, issuing a transmitter air pressure abnormality alarm.

[0051] like Figure 3 As shown, if the transmitter outlet pressure value is within the transmitter outlet pressure standard range, the transmitter outlet pressure is determined to be normal. Step S103 is executed. If the transmitter outlet pressure value is not within the transmitter outlet pressure standard range, the transmitter outlet pressure is determined to be abnormal, and an abnormal transmitter outlet pressure alarm is issued.

[0052] Optionally, whether the transmitter air pressure is abnormal is determined based on the transmitter outlet air pressure value and the transmitter air pressure standard range; if the transmitter air pressure is abnormal, an abnormal transmitter air pressure alarm is issued, which can be implemented by the following steps:

[0053] Step 11: predefine a standard range of transmitter air pressure, where the standard range includes a maximum pressure value and a minimum pressure value.

[0054] Step 12: Drive the filter rod air delivery system and turn on the emission air pressure.

[0055] Step 13: Obtain a pressure value, which is the pressure value inside the connecting pipe from the outlet of the transmitting end to the inlet of the pressure relief end.

[0056] Step 14: Determine whether the pressure value is within the standard range. If so, return to step 13. If not, a transmitter air pressure fault signal is issued, and the indicator light turns red, indicating that the air delivery pipeline requires repair. Once the fault is manually corrected, i.e., the pressure value is adjusted back to within the standard range, the fault is resolved, and the indicator light turns green.

[0057] Optionally, before determining whether the transmitter-end air pressure is abnormal based on the transmitter-end outlet air pressure value and the transmitter-end air pressure standard range, the method further includes:

[0058] The length of the pipeline between the transmitting end and the pressure relief end is obtained; a matching target length range is determined according to the pipeline length and a plurality of preset length ranges; and a standard range of air pressure at the transmitting end is determined according to the target length range.

[0059] Optionally, before executing step 14, a set value for the transmitter-side pressure standard interval is set. The set value for the transmitter-side pressure standard interval includes the maximum and minimum values of the transmitter-side outlet pressure standard interval. The set value for the transmitter-side pressure standard interval is related to the length of the air delivery duct connecting the transmitter outlet to the pressure relief inlet.

[0060] If the pipeline length is lower than the fixed length value A, the pipeline is a low-pressure pipeline, and the corresponding set value is low-pressure mode. Every time the pipeline length exceeds a certain length, the corresponding set value will also change. According to the different length values of the pipeline, the set value of the standard range of air pressure at the transmitting end can be divided into three set values: low-pressure mode, medium-pressure mode and high-pressure mode. Based on the location of the machine corresponding to the faulty pipeline, maintenance personnel can obtain the length of the pipeline and switch the set value mode accordingly, which improves the efficiency of equipment maintenance and greatly shortens the time to adjust the air supply pressure after the pipeline is switched, thereby achieving the purpose of improving the air supply efficiency of the filter rod.

[0061] Furthermore, after obtaining the transmitter outlet pressure value, the method further includes:

[0062] Acquire a transmitter inlet pressure value, where the transmitter inlet pressure value is a measured value of the transmitter inlet pressure; and determine whether the transmitter is leaking based on the transmitter inlet pressure value and the transmitter pressure standard range.

[0063] The transmitter outlet pressure value also checks the transmitter's airtightness. If the transmitter inlet pressure is consistently lower than the minimum pressure value within the transmitter outlet's standard pressure range, it can be determined that the transmitter has an air leak, and maintenance personnel can be instructed to inspect and maintain the transmitter's airtightness.

[0064] Step S103: obtaining a receiving end speed value, wherein the receiving end speed value is a measured value of the air delivery speed of the filter rod at the receiving end inlet.

[0065] Step S104: determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; if the receiving end speed is abnormal, issuing a receiving end speed abnormality alarm.

[0066] If the speed value measured at the receiving end is within the standard speed range of the receiving end, the receiving end speed is determined to be normal. Execute step S105. If the speed value measured at the receiving end is not within the standard speed range of the receiving end, the receiving end speed is determined to be abnormal, and a receiving end speed abnormality alarm is issued.

[0067] Optionally, determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; if the receiving end speed is abnormal, issuing a receiving end speed abnormality alarm, which can be implemented in the following manner:

[0068] Step 15: predefine a standard range of receiving end speed, where the standard range includes a maximum speed value and a minimum speed value.

[0069] Step 16: Drive the filter rod air conveying system and convey the filter rod into the receiving end.

[0070] Step 17: Obtain a speed value, which is a measured value when the filter rod enters the speed detection device at the receiving end.

[0071] Step 18: Determine whether the speed value is within the standard range. If so, return to Step 17. If not, a receiving-end speed fault signal is issued, and the indicator light turns red, indicating that the air delivery pipeline section requires repair. Once the system automatically adjusts or manually resolves the fault, adjusting the pressure value to within the standard range, the fault is resolved, and the indicator light turns green.

[0072] Optionally, determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; and issuing a receiving end speed abnormality alarm if the receiving end speed is abnormal, including:

[0073] If the receiving end speed measurement value is 0, a receiving end blocking alarm is issued;

[0074] If the speed measurement value of the receiving end is not 0 and is not within the standard speed range of the receiving end, a speed fault alarm of the receiving end is issued; an air pressure adjustment signal is sent to the pressure relief end so that the pressure relief end adjusts the discharge air pressure until the speed value is within the standard range, thereby eliminating the speed fault alarm of the receiving end.

[0075] Optionally, determine whether the speed value is within the receiving end speed standard range. If the speed value is within the receiving end speed standard range, enter the operation mode and transmit the filter rod normally. If the speed value is 0, a receiving end blockage signal is issued, and the indicator light turns red, indicating that the air duct is blocked and the air delivery duct needs to be dredged. After manual intervention to handle the fault, that is, after the speed value is adjusted to within the standard range, the fault is eliminated and the indicator light turns green.

[0076] If the speed value is greater than the maximum value of the receiving end speed standard interval, or is less than the minimum value of the receiving end speed standard interval and is not 0, a receiving end speed fault signal is issued, and the indicator light is red, indicating that the air delivery speed of the filter rod in this section of the air duct is abnormal. After the control module receives the fault signal, it processes the algorithm and outputs an air pressure adjustment signal to the pressure relief end. After the pressure relief end receives the air pressure adjustment signal, the execution module automatically adjusts the pressure at the pressure relief end until the speed value is within the standard range, the fault is eliminated, and the indicator light is green.

[0077] Optionally, step 18 can also realize the function of switching the set value according to the filter rod specification with one click by storing the correspondence between the recorded length specification and the set value of the standard range interval according to the different filter rod length specifications, thereby improving the speed and accuracy of the filter rod air conveying system specification pipe cutting.

[0078] Step S105: Acquire the pressure value of the pressure relief end, where the pressure value is the measured value of the pressure at the outlet of the pressure relief end.

[0079] Step S106: determining whether the pressure relief end pressure is abnormal based on the pressure relief end pressure value and the pressure relief end pressure standard range; if the pressure relief end pressure is abnormal, issuing a pressure relief end pressure abnormality alarm.

[0080] Optionally, if the pressure value of the pressure relief end is greater than the upper limit threshold of the pressure relief end pressure standard interval, a pressure relief cut-off pressure exceeding upper limit alarm is issued so that maintenance personnel can inspect the pressure relief end component; if the pressure value of the pressure relief end is less than the lower limit threshold of the pressure relief end pressure standard interval, a pressure relief cut-off pressure exceeding lower limit alarm is issued so that maintenance personnel can inspect the air tightness of the pressure relief end air supply pipeline;

[0081] When the pressure value of the pressure relief end is within the pressure relief end pressure standard range, the pressure relief cut-off pressure exceeding upper limit alarm is eliminated.

[0082] Optionally, whether the pressure at the pressure relief end is abnormal is determined based on the pressure value at the pressure relief end and the pressure standard range of the pressure at the pressure relief end; if the pressure at the pressure relief end is abnormal, an abnormal pressure alarm is issued, which can be implemented in the following manner:

[0083] Step 19: predefine a standard range of air pressure at the pressure relief end, wherein the standard range includes a maximum pressure value and a minimum pressure value.

[0084] Step 20: Drive the filter rod air conveying system and open the pressure relief valve at the pressure relief end.

[0085] Step 21: Obtain the pressure value, which is the pressure value inside the connecting pipe from the pressure relief end outlet to the receiving end inlet.

[0086] Step 22: Determine whether the pressure value is within the standard range. If so, return to step 21. If not, a pressure relief end pressure exceeding upper or lower limit fault signal is issued, and the indicator light turns red, indicating that the air delivery pipeline requires maintenance. After manual intervention to correct the fault, i.e., adjust the pressure value to within the standard range, the fault is eliminated, and the indicator light turns green.

[0087] Optionally, the maximum pressure value set in the standard range of the pressure relief end air pressure is not greater than the minimum pressure value that can cause the filter rod to deform when passing through the pressure relief end, so that the quality of the filter rod is not affected during the air delivery process, thereby improving the air delivery quality of the filter rod.

[0088] Optionally, the minimum pressure value set in the standard range of the air pressure at the pressure relief end is not less than the maximum pressure value at which the filter rod can cause blockage of the air delivery pipe when passing through the pressure relief end, so that the filter rod will not have a blockage failure at the pressure relief end during the air delivery process, thereby improving the air delivery efficiency of the filter rod.

[0089] Optionally, step 22 may be implemented as follows:

[0090] Determine whether the pressure value is within the standard range. If the pressure value is within the standard range, enter the operation mode.

[0091] If the pressure value is higher than the maximum speed value set in the standard range, a pressure relief end air pressure exceeding upper limit fault signal is issued, and the indicator light turns red, indicating that the air supply pressure of this section of the air duct is greater than the maximum pressure value set in the standard range of the pressure relief end air pressure, and guiding the maintenance personnel to inspect and maintain the pressure relief end components. After the fault is eliminated, the indicator light turns green.

[0092] If the pressure value is lower than the minimum speed value set in the standard range, a pressure relief end air pressure exceeding the lower limit fault signal is issued, and the indicator light turns red, indicating that the air supply pressure of this section of the air duct is lower than the minimum pressure value set in the pressure relief end air pressure standard range, until the maintenance personnel inspect and maintain the air tightness of the pressure relief end air supply pipeline. After the fault is eliminated, the indicator light turns green.

[0093] Furthermore, it also includes: outputting the outlet pressure value of the transmitting end, the speed measurement value of the receiving end and the pressure value of the pressure relief end in real time.

[0094] Optionally, if the pressure relief end pressure value is within the pressure relief end pressure standard range, the pressure relief end pressure is determined to be normal, and the transmitter outlet pressure value, the receiver speed value, and the pressure relief end pressure value are output in real time. If the pressure relief end pressure value is not within the pressure relief end pressure standard range, the receiver speed is determined to be abnormal, and an abnormal pressure relief end pressure alarm is issued.

[0095] After obtaining the pressure data at the pressure relief end, the display module shows that the system is operating normally, and displays the real-time measurement value of the air pressure at the transmitting end, the real-time measurement value of the speed at the receiving end, and the real-time measurement value of the air pressure at the pressure relief end in real time, so that maintenance personnel can grasp the filter rod air conveying status in real time and improve the control accuracy of the filter rod air conveying process.

[0096] The embodiment of the present invention provides an air pressure control method for a filter rod air conveying system, wherein the filter rod air conveying system includes a transmitting end, a receiving end and a pressure relief end. In response to a start signal of the filter rod air conveying system, an air pressure value at the outlet of the transmitting end is obtained, and the air pressure value at the outlet of the transmitting end is a measured value of the air pressure at the outlet of the transmitting end; whether the air pressure at the transmitting end is abnormal is determined based on the air pressure value at the outlet of the transmitting end and the standard air pressure interval of the transmitting end; if the air pressure at the transmitting end is abnormal, an air pressure abnormality alarm is issued at the transmitting end; a speed measurement value at the receiving end is obtained, and the speed measurement value at the receiving end is a measured value of the air conveying speed of the filter rod at the inlet of the receiving end; whether the speed of the receiving end is abnormal is determined based on the speed measurement value of the receiving end and the standard air pressure interval of the receiving end; if the speed of the receiving end is abnormal, an air pressure abnormality alarm is issued at the receiving end; an air pressure value at the pressure relief end is obtained, and the air pressure value at the pressure relief end is a measured value of the air pressure at the outlet of the pressure relief end; whether the air pressure at the pressure relief end is abnormal is determined based on the air pressure value of the pressure relief end and the standard air pressure interval of the pressure relief end; if the air pressure at the pressure relief end is abnormal, an air pressure abnormality alarm is issued at the pressure relief end. Compared to current manual air duct inspection and maintenance, the technical solution provided by the embodiments of the present invention can detect the air pressure and filter rod speed in the air duct at the transmitting end, pressure relief end, and receiving end of the air duct. Based on the detected air pressure value at the transmitting end outlet, the speed value at the receiving end, and the air pressure value at the pressure relief end, the status of the transmitting end, receiving end, and pressure relief end are respectively checked and an alarm is issued when an abnormality occurs. This achieves automated and rapid inspection of the air duct and improves the efficiency of air duct inspection and maintenance.

[0097] Figure 4 This is a schematic diagram of the structure of an air pressure control device for a filter rod air conveying system provided by an embodiment of the present invention. This embodiment is applicable to the situation where the status of the filter rod air conveying pipeline is monitored and repaired in real time. The air pressure control device for the filter rod air conveying system can be implemented in the form of hardware and / or software. The filter rod air conveying system includes a transmitting end, a receiving end and a pressure relief end. Figure 4 As shown, the air pressure control device of the filter rod air conveying system includes: a transmitting end outlet air pressure value acquisition unit 210, a transmitting end detection unit 220, a receiving end speed measurement value acquisition unit 230, a receiving end detection unit 240, a pressure relief end air pressure value acquisition unit 250 and a pressure relief end detection unit 260.

[0098] The transmitter outlet pressure value acquisition unit 210 is used to obtain the transmitter outlet pressure value in response to the start signal of the filter rod air conveying system, wherein the transmitter outlet pressure value is a measured value of the transmitter outlet pressure;

[0099] The transmitter detection unit 220 is configured to determine whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the transmitter pressure standard range; if the transmitter pressure is abnormal, issue a transmitter pressure abnormality alarm;

[0100] A receiving end speed measurement value acquisition unit 230 is used to acquire a receiving end speed measurement value, wherein the receiving end speed measurement value is a measurement value of the air delivery speed of the filter rod at the receiving end inlet;

[0101] The receiving end detection unit 240 is configured to determine whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; if the receiving end speed is abnormal, then issue a receiving end speed abnormality alarm;

[0102] A pressure relief end air pressure value acquisition unit 250 is used to acquire a pressure relief end air pressure value, wherein the pressure relief end air pressure value is a measured value of the air pressure at the pressure relief end outlet;

[0103] The pressure relief end detection unit 260 is used to determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the pressure standard range of the pressure relief end; if the pressure at the pressure relief end is abnormal, an abnormal pressure alarm is issued.

[0104] Based on the above embodiment, optionally, a transmitter outlet pressure value configuration unit is further included, which is used to obtain the length of the pipeline between the transmitter and the pressure relief end before determining whether the transmitter outlet pressure is abnormal based on the transmitter outlet pressure value and the transmitter pressure standard range;

[0105] determining a matching target length range according to the pipeline length and a plurality of preset length ranges;

[0106] The standard range of air pressure at the transmitting end is determined according to the target length range.

[0107] On the basis of the above embodiment, optionally, a gas leakage detection unit is further included, which is used to obtain a gas pressure value at the inlet of the transmitting end after obtaining the gas pressure value at the outlet of the transmitting end, wherein the gas pressure value at the inlet of the transmitting end is a measured value of the gas pressure at the inlet of the transmitting end;

[0108] Whether the transmitting end is leaking is determined according to the transmitting end inlet air pressure value and the transmitting end air pressure standard range.

[0109] Based on the above embodiment, optionally, the receiving end detection unit 240 is configured to:

[0110] If the receiving end speed measurement value is 0, a receiving end blocking alarm is issued;

[0111] If the speed measurement value of the receiving end is not 0 and is not within the standard speed range of the receiving end, a speed fault alarm of the receiving end is issued; an air pressure adjustment signal is sent to the pressure relief end so that the pressure relief end adjusts the discharge air pressure until the speed value is within the standard range, thereby eliminating the speed fault alarm of the receiving end.

[0112] Based on the above embodiment, optionally, the pressure relief end detection unit 260 is used to:

[0113] If the pressure value of the pressure relief end is greater than the upper limit threshold of the pressure relief end pressure standard interval, a pressure relief cut-off pressure exceeding the upper limit alarm is issued so that maintenance personnel can inspect the pressure relief end components; if the pressure value of the pressure relief end is less than the lower limit threshold of the pressure relief end pressure standard interval, a pressure relief cut-off pressure exceeding the lower limit alarm is issued so that maintenance personnel can inspect the air tightness of the pressure relief end air supply pipeline;

[0114] When the pressure value of the pressure relief end is within the pressure relief end pressure standard range, the pressure relief cut-off pressure exceeding upper limit alarm is eliminated.

[0115] On the basis of the above embodiment, optionally, an output unit is further included, which is used to output the outlet pressure value of the transmitting end, the speed measurement value of the receiving end and the pressure value of the pressure relief end in real time.

[0116] The air pressure control device of the filter rod air conveying system provided by the embodiment of the present invention comprises a transmitting end, a receiving end and a pressure relief end, a transmitting end outlet air pressure value acquisition unit 210, which is used to respond to the start signal of the filter rod air conveying system and acquire the transmitting end outlet air pressure value, wherein the transmitting end outlet air pressure value is the measured value of the transmitting end outlet air pressure; a transmitting end detection unit 220, which is used to determine whether the transmitting end air pressure is abnormal based on the transmitting end outlet air pressure value and the transmitting end air pressure standard interval; if the transmitting end air pressure is abnormal, an abnormal transmitting end air pressure alarm is issued; a receiving end speed measurement value acquisition unit 230, which is used to acquire the receiving end speed measurement value, wherein the receiving end speed measurement ... The receiving end speed measurement value is the measured value of the air delivery speed of the filter rod at the receiving end inlet; the receiving end detection unit 240 is used to determine whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; if the receiving end speed is abnormal, an abnormal receiving end speed alarm is issued; the pressure relief end air pressure value acquisition unit 250 is used to obtain the pressure relief end air pressure value, and the pressure relief end air pressure value is the measured value of the air pressure at the pressure relief end outlet; the pressure relief end detection unit 260 is used to determine whether the pressure relief end air pressure is abnormal based on the pressure relief end air pressure value and the pressure relief end air pressure standard interval; if the pressure relief end air pressure is abnormal, an abnormal pressure relief end air pressure alarm is issued. Compared to current manual air duct inspection and maintenance, the air pressure control device for the filter rod air duct system provided by the present invention can detect the air pressure and filter rod speed in the air duct at the transmitting end, pressure relief end, and receiving end of the air duct. Based on the detected air pressure value at the transmitting end outlet, the speed value at the receiving end, and the air pressure value at the pressure relief end, the status of the transmitting end, receiving end, and pressure relief end are respectively detected, and an alarm is issued when an abnormality is found. This achieves automated and rapid inspection of the air duct and improves the efficiency of air duct inspection and maintenance.

[0117] The air pressure control device for the filter rod air conveying system provided in the embodiment of the present invention can execute the air pressure control method for the filter rod air conveying system provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0118] Figure 5 This is a schematic diagram of the structure of an air pressure control device for a filter rod air conveying system provided by an embodiment of the present invention. The air pressure control device is applied to the filter rod air conveying system. The filter rod air conveying system includes a transmitting end 1, a receiving end 3, and a pressure relief end 2. An air conveying duct is provided between the transmitting end 1 and the pressure relief end 2, and an air conveying duct is provided between the pressure relief end 2 and the receiving end 3. The air pressure control device for the filter rod air conveying system includes a detection module 100, a control module 200, a display module 300, and an execution module 400.

[0119] The detection module 100 includes a transmitting end pressure sensor 1001, a pressure relief end pressure sensor 1002 and a receiving end photoelectric switch 1003;

[0120] The transmitting end pressure sensor 1001 is connected to the transmitting end 1; the pressure relief end pressure sensor 1002 is connected to the pressure relief end 2; the receiving end photoelectric switch 1003 is connected to the receiving end 3;

[0121] The transmitting end pressure sensor 1001, the pressure relief end pressure sensor 1002 and the receiving end photoelectric switch 1003 are respectively connected to the control module 200;

[0122] The control module 200 is also connected to the display module 300 and the execution module 400; the controller is used for the air pressure control method of the filter rod air conveying system shown in the above embodiment.

[0123] The detection module 100 detects the air pressure at the transmitting end, the speed at the receiving end, and the air pressure at the pressure relief end in real time, and feeds the detected data back to the control module 200 in real time. After receiving the information output by the detection module 100, the control module 200 outputs a signal to the execution module 400 on the one hand, driving the execution module 400 to perform the task, and on the other hand, displays the processed information including real-time measurement values, fault signals, and the operating status of the air conveying system in real time on the display module 300. The display module 300 displays the information output by the control module 200 in real time, and can modify the standard range setting value of the air pressure at the transmitting end, the standard range setting value of the speed at the receiving end, and the standard range setting value of the air pressure at the pressure relief end, etc. Through the input and output functions provided by the display module 300, the control range of the control module 200 is modified to realize the closed-loop control of the air pressure of the filter rod air conveying system, improve the process control accuracy of the filter rod air conveying system, reduce the number of equipment failure shutdowns, and achieve the purpose of improving the filter rod air conveying efficiency.

[0124] The detection module 100 includes a pressure sensor 1001, a pressure sensor 1002, and a receiving-end photoelectric switch 1003. The pressure sensor 1001 collects the air supply pressure at the transmitting-end component 1 in real time, and the pressure sensor 1002 collects the air supply pressure at the pressure relief-end component 2 in real time. The pressure sensors 1001 and 1002 use the ZJE51-P-1 pressure sensor, which has the characteristics of high precision, strong stability, fast response, and high adaptability, and is suitable for the working environment of the filter rod air supply system. The speed sensor 1003 uses the principle of mirror reflection to detect in real time whether a filter rod passes through the receiving end 3, and calculates the filter rod air supply speed at the receiving-end component 3 in real time based on the filter rod passing time. The receiving-end photoelectric switch 1003 uses the SICK photoelectric switch WTB4S-3N1361, which has the characteristics of high precision, strong anti-interference ability, and small size, and can well provide the function of speed measurement at the receiving end 3.

[0125] For example, the control module 200 can be a Panasonic FPOHC32ET PLC2001 (Programmable Logic Controller), which features powerful functionality, high reliability, and strong anti-interference capabilities, thereby enhancing the system's flexibility and versatility. The PLC 2001 receives information collected by the pressure sensors 1001 and 1002, as well as the receiving-end photoelectric switch 1003, in real time. After processing the information through an algorithm, it sends signals to the display module 300 and the execution module 300.

[0126] For example, display module 300 can be a Weiluntong MT8071IP model human-machine interface 3001, which features high performance, robust connectivity and compatibility, and strong anti-interference capabilities, effectively providing a rich and stable visual and operational interface. Human-machine interface 3001 interacts with PLC 2001 in real time, displaying operational and fault information about the filter rod air conveying system, improving equipment maintenance efficiency. Maintenance personnel can adjust the ranges of various process parameters of the filter rod air conveying system by modifying settings on human-machine interface 3001, such as the transmitter pressure standard range, the pressure relief pressure standard range, and the receiver speed standard range. This effectively improves the stability of the filter rod air conveying system and reduces the time required for specification changes.

[0127] For example, actuator module 400 may be a proportional control valve 4001. Proportional control valve 4001 receives signals from PLC 2001 and automatically adjusts valve opening to automatically regulate the pressure at the pressure relief end. Proportional control valve 4001 utilizes an ITV series electric proportional control valve, which features high-precision control, fast response, high pressure resistance, and programmable settings, making it suitable for regulating air supply pressure.

[0128] Optional, Figure 6FIG. 1 is a schematic diagram of the structure of a transmitter component provided by an embodiment of the present invention. Figure 6 As shown, the transmitting end 1 includes a quick connector 41, one end of the quick connector 41 is connected to the outlet of the transmitting end 1, and the other end of the quick connector 41 is connected to the air supply pipe; the transmitting end pressure sensor 1001 is installed on the quick connector 41 through the threaded hole on the circumferential surface of the quick connector 41.

[0129] The transmitter assembly 1 consists of a quick connector 41 and a pressure sensor 1001. One end of the quick connector 41 is connected to the transmitter outlet, and the other end is connected to the air delivery pipe. The circumferential surface of the quick connector 41 is provided with a threaded hole to provide a mounting position for the pressure sensor 1001.

[0130] Optional, Figure 7 Schematic diagram of the pressure relief end assembly structure provided by an embodiment of the present invention. Figure 7 As shown, the pressure relief end 2 includes a pressure relief valve 42, and the pressure relief valve 42 is connected to the pressure relief end pressure sensor 1002 through the control module 200 in the first direction, and the control module 200 is a proportional control valve 4001; the pressure relief valve 33 is in the second direction, one end is connected to the transmitting end 1 through the air supply pipe, and the other end is connected to the receiving end 3 through the air supply pipe, and the first direction and the second direction are perpendicular to each other.

[0131] The pressure relief end assembly 2 consists of a pressure relief valve 42, a proportional control valve 4001, and a pressure sensor 1002. The pressure relief valve 42 has ports at both ends in the horizontal direction for connecting to air delivery pipes. One end is connected to the air delivery pipe from the transmitting end to the pressure relief end, and the other end is connected to the air delivery pipe from the pressure relief end to the receiving end. The upper end of the pressure relief valve 42 is designed with a connector that can be connected to the proportional control valve 4001 and the pressure sensor 1002 in sequence through an air pipe.

[0132] Optional, Figure 8 is a schematic diagram of the receiving end component structure provided by an embodiment of the present invention, Figure 9 An exploded diagram of a receiving end component provided in an embodiment of the present invention, such as Figure 8 and Figure 9 As shown, the receiving end 3 includes a bracket 31, a glass tube 32, a reflector 33 and a mounting plate 34. One end of the bracket 31 is connected to the pressure relief end 2 through an air delivery duct, and the other end of the bracket 31 is connected to the receiver; the glass tube 32 is arranged in the central circular hole on the bracket 31 in an interference fit manner, and the inner diameter of the glass tube 32 matches the diameter of the filter rod; two grooves are provided on the surface of the bracket 31, and the receiving end photoelectric switch 1003 is installed in the grooves; the reflector 33 is arranged in the mounting plate, and the mounting plate is fixed to the bracket 31.

[0133] One end of the bracket 31 is connected to the air delivery duct from the pressure relief end to the receiving end, and the other end is connected to the receiver. A circular hole is provided in the center of the bracket 31 to provide a mounting position for the glass tube 32. Two grooves are provided on the surface of the bracket 31 to provide a mounting position for the photoelectric switch 1003 at the receiving end. A plurality of observation holes, circular holes and threaded holes are provided directly opposite the grooves to provide a mounting position for the mounting plate 34. The glass tube 32 can match the circular hole in the center of the bracket 31 and be installed in the circular hole in the center of the bracket 31 through interference fit. The inner diameter of the glass tube 32 matches the diameter of the filter rod to provide an air delivery duct for the filter rod. At the same time, the observation hole on the bracket and the transparent characteristics of the glass are utilized for the photoelectric switch 1003 at the receiving end to identify The filter rod passes through; the outer dimensions of the reflector 33 can be matched with the groove on the mounting plate 34, and it is installed in the groove of the mounting plate 34 by interference fit. Open grooves are provided in the centers of both ends of the mounting plate 34, and the mounting plate 34 can be connected to the threaded holes on the surface of the bracket 31 by bolts to fix the position of the reflector 33; the width of the receiving end photoelectric switch 1003 is the same as the groove on the surface of the bracket 31, and the receiving end photoelectric switch 1003 can be fixed in the groove on the surface of the bracket 31 by bolts. At the same time, since the groove and the threaded hole are arranged directly opposite each other, the receiving end photoelectric switch 1003 is always directly opposite the reflector 33, providing a light reflection function for the receiving end photoelectric switch 1003.

[0134] For example, if the filter rod has not entered the receiving end 3, the infrared rays emitted by the upper and lower receiving end photoelectric switches 1003 pass through the observation hole of the bracket 31 and the glass tube 32 in turn, and after contacting the reflector 33, they are reflected to the upper and lower receiving end photoelectric switches 1003 through the principle of light reflection. That is, the upper and lower receiving end photoelectric switches 1003 can detect the reflected signal, and the system determines that there is no filter rod in the receiving end 3, and at the same time, the upper and lower receiving end photoelectric switches 1003 light up green.

[0135] If the filter rod is transported into the glass tube 32 of the receiving end 3 by air pressure, and is affected by its own gravity and air pressure, it makes a vertical downward linear motion and contacts the upper receiving end photoelectric switch 1003, then the infrared rays emitted by the upper receiving end photoelectric switch 1003 pass through the observation hole of the bracket 31 and the glass tube 32 in turn, and are blocked by the filter rod, while the infrared rays emitted by the lower receiving end photoelectric switch 1003 pass through the observation hole of the bracket 31 and the glass tube 32 in turn, and are reflected to the lower receiving end photoelectric switch 1003 after contacting the reflector 33, that is, the upper receiving end photoelectric switch 1003 cannot detect the reflected signal, and the lower receiving end photoelectric switch 1003 can detect the emitted signal. The system determines that there is a filter rod in the glass tube 32, and starts timing from the time when the upper receiving end photoelectric switch 1003 is blocked. At the same time, the upper receiving end photoelectric switch 1003 lights up yellow, and the lower receiving end photoelectric switch 1003 lights up yellow.

[0136] If the filter rod continues to move and contacts the lower receiving end photoelectric switch 1003, the infrared rays emitted by the upper and lower receiving end photoelectric switches 1003 pass through the observation hole of the bracket 31 and the glass tube 32 in turn and are blocked by the filter rod, that is, the upper and lower receiving end photoelectric switches 1003 cannot detect the reflected signal. The system determines that there is a filter rod in the glass tube 32, and collects the time from the upper receiving end photoelectric switch 1003 being blocked to the lower receiving end photoelectric switch 1003 being blocked, and outputs it to the control module 20. The control module 20 calculates the running speed of the filter rod at the receiving end through algorithm processing, and at the same time, the upper and lower receiving end photoelectric switches 1003 light up yellow lights.

[0137] If the filter rod continues to enter the receiving end 3, the signal lights of the upper and lower receiving end photoelectric switches 1003 will continue to flash. When the yellow light of a receiving end photoelectric switch 1003 remains on for a certain period of time, the control module 20 determines that there is a filter rod blockage fault at the receiving end and the system stops running.

[0138] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0139] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for controlling air pressure in a filter rod air conveying system, characterized in that: The filter rod air conveying system includes a transmitting end, a receiving end and a pressure relief end, and the method includes: In response to a start signal of the filter rod air conveying system, an air pressure value at an outlet of the transmitting end is obtained, where the air pressure value at the outlet of the transmitting end is a measured value of the air pressure at the outlet of the transmitting end; Determining whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range; if the transmitter air pressure is abnormal, issuing a transmitter air pressure abnormality alarm; Obtaining a receiving end speed value, wherein the receiving end speed value is a measured value of the air delivery speed of the filter rod at the receiving end inlet; determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; and issuing a receiving end speed abnormality alarm if the receiving end speed is abnormal; Obtaining a pressure value at a pressure relief end, wherein the pressure value at the pressure relief end is a measured value of the pressure at the pressure relief end outlet; Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard pressure range at the pressure relief end; if the pressure at the pressure relief end is abnormal, issue an abnormal pressure alarm at the pressure relief end.

2. The method according to claim 1, characterized in that Before determining whether the transmitter end air pressure is abnormal based on the transmitter end outlet air pressure value and the transmitter end air pressure standard range, the method further includes: Obtaining the length of the pipeline between the transmitting end and the pressure relief end; determining a matching target length range according to the pipeline length and a plurality of preset length ranges; The standard range of air pressure at the transmitting end is determined according to the target length range.

3. The method according to claim 2, characterized in that After obtaining the transmitter outlet pressure value, it also includes: Obtaining a transmitter inlet pressure value, wherein the transmitter inlet pressure value is a measured value of the transmitter inlet pressure; Whether the transmitting end is leaking is determined according to the transmitting end inlet air pressure value and the transmitting end air pressure standard range.

4. The method according to claim 1, wherein Determining whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard range; and issuing a receiving end speed abnormality alarm if the receiving end speed is abnormal, including: If the receiving end speed measurement value is 0, a receiving end blocking alarm is issued; If the speed measurement value of the receiving end is not 0 and is not within the standard speed range of the receiving end, a speed fault alarm of the receiving end is issued; an air pressure adjustment signal is sent to the pressure relief end so that the pressure relief end adjusts the discharge air pressure until the speed value is within the standard range, thereby eliminating the speed fault alarm of the receiving end.

5. The method according to claim 1, wherein Determining whether the pressure relief end air pressure is abnormal according to the pressure relief end air pressure value and the pressure relief end air pressure standard range; If the pressure at the pressure relief end is abnormal, an abnormal pressure alarm will be issued, including: If the pressure value of the pressure relief end is greater than the upper limit threshold of the pressure relief end pressure standard range, a pressure relief cut-off pressure exceeding the upper limit alarm is issued so that maintenance personnel can inspect the pressure relief end component; If the pressure value of the pressure relief end is lower than the lower limit threshold of the pressure relief end pressure standard range, a pressure relief cut-off pressure exceeding the lower limit alarm is issued so that maintenance personnel can inspect the air tightness of the air supply pipeline at the pressure relief end; When the pressure value of the pressure relief end is within the pressure relief end pressure standard range, the pressure relief cut-off pressure exceeding upper limit alarm is eliminated.

6. The method according to claim 1, characterized in that Also includes: The transmitter outlet pressure value, the receiver speed measurement value and the pressure relief end pressure value are output in real time.

7. An air pressure control device for a filter rod air conveying system, characterized in that: The filter rod air conveying system includes a transmitting end, a receiving end and a pressure relief end, and the device includes: a transmitter outlet air pressure value acquisition unit, configured to acquire a transmitter outlet air pressure value in response to a start signal of the filter rod air conveying system, wherein the transmitter outlet air pressure value is a measured value of the transmitter outlet air pressure; a transmitter detection unit, configured to determine whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range; and if the transmitter air pressure is abnormal, issue a transmitter air pressure abnormality alarm; A receiving end speed measurement value acquisition unit, configured to acquire a receiving end speed measurement value, wherein the receiving end speed measurement value is a measurement value of the air delivery speed of the filter rod at the receiving end inlet; a receiving end detection unit, configured to determine whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard interval; and if the receiving end speed is abnormal, issuing a receiving end speed abnormality alarm; A pressure relief end air pressure value acquisition unit, used to acquire the pressure relief end air pressure value, wherein the pressure relief end air pressure value is a measured value of the air pressure at the pressure relief end outlet; The pressure relief end detection unit is used to determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the pressure standard range of the pressure relief end; if the pressure at the pressure relief end is abnormal, an abnormal pressure alarm is issued.

8. An air pressure control device for a filter rod air conveying system, characterized in that: The filter rod air delivery system includes a transmitting end, a receiving end and a pressure relief end. An air delivery pipe is provided between the transmitting end and the pressure relief end, and an air delivery pipe is provided between the pressure relief end and the receiving end. The device includes: a detection module, a control module, a display module and an execution module; The detection module includes a transmitting end pressure sensor, a pressure relief end pressure sensor and a receiving end photoelectric switch; The transmitting end pressure sensor is connected to the transmitting end; the pressure relief end pressure sensor is connected to the pressure relief end; the receiving end photoelectric switch is connected to the receiving end; The transmitting end pressure sensor, the pressure relief end pressure sensor and the receiving end photoelectric switch are respectively connected to the control module; The control module is also connected to the display module and the execution module; the controller is used to execute the air pressure control method of the filter rod air conveying system according to any one of claims 1-6.

9. The device according to claim 8, characterized in that The transmitting end includes a quick connector, one end of which is connected to the transmitting end outlet, and the other end of which is connected to the air supply pipe; the transmitting end pressure sensor is installed on the quick connector through a threaded hole on the circumferential surface of the quick connector; The pressure relief end includes a pressure relief valve, which is connected to a pressure sensor at the pressure relief end via a control module in a first direction, and the control module is a proportional regulating valve; in a second direction, one end of the pressure relief valve is connected to a transmitting end via an air delivery pipe, and the other end is connected to a receiving end via an air delivery pipe, and the first direction and the second direction are perpendicular to each other; The receiving end includes a bracket, a glass tube, a reflector and a mounting plate. One end of the bracket is connected to the pressure relief end through an air supply duct, and the other end of the bracket is connected to the receiver. The glass tube is arranged in the central circular hole on the bracket in an interference fit manner, and the inner diameter of the glass tube matches the diameter of the filter rod. Two grooves are provided on the surface of the bracket, and the photoelectric switch of the receiving end is installed in the grooves. The reflector is arranged in the mounting plate, and the mounting plate is fixed to the bracket.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the air pressure control method for the filter rod air conveying system according to any one of claims 1 to 6 when executed.

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