Filter stick conveying pipeline blockage detection device

Abstract

The utility model discloses a filter stick conveying pipeline blockage detection device. The filter stick conveying pipeline blockage detection device comprises a fixed base arranged on a filter stick conveying pipeline in a sleeving mode and an integrated U-shaped correlation type photoelectric detector. Detection window channels communicated to the outer wall of the filter stick conveying pipeline are symmetrically arranged in the fixed base, grooves are formed in the outer sides of the detection window channels, and the U-shaped tail ends of the integrated U-shaped correlation type photoelectric detectors are embedded into the symmetrically-arranged grooves. A detection transmitting head and a detection receiving head which are arranged on the inner sides of the two sides of the U-shaped tail end directly face and are tightly attached to the detection window channel; a screw hole for fixing a clean gas pipe joint is formed above the detection window channel, a gas channel is downwards formed in the center of the screw hole, and the gas channel is communicated to the detection window channel; the outer side of the U-shaped tail end is provided with a detection indicating lamp, and the detection transmitting head, the detection receiving head and the detection indicating lamp are electrically connected with an external controller through detection cables. According to the utility model, the running state of detection is monitored in real time, the false detection problem is solved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco industry rolling machine detection equipment, and specifically relates to a filter rod conveying pipeline blockage detection device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the cigarette making machine model ZJ116B used by the tobacco industry, filter rod supply is that the filter rod transmitter sends the filter rod to the filter rod receiver through the filter rod delivery pipeline erected in the air, thereby completing the production and supply of filter rods. The filter rod delivery pipeline (which can be referred to as the filter rod pipeline) has a long diameter and is erected in the air. Once the filter rod delivery pipeline is blocked, it is difficult to repair. It is not only time-consuming and labor-intensive, but also causes a large amount of filter rod consumption, affecting the effective operation rate of the equipment and causing material loss. In order to avoid the blockage of the filter rod delivery pipeline and ensure the normal production of the equipment, the manufacturer detects the operation of the delivery pipeline at the filter rod receiving end. Once it is detected that the filter rod is blocked to the detection position, the filter rod transmitter will stop sending the filter rod in time, thereby avoiding further blockage of the filter rod delivery pipeline and reducing failure losses.

[0004] The existing filter rod delivery pipe blockage detection usually uses a split-type photoelectric detector for detection, which uses a light guide transmitter and its corresponding light guide receiver to detect whether there is a filter rod inside the glass tube (i.e., the filter rod delivery pipe) to determine whether it is blocked. However, this detection device has the following problems:

[0005] 1. The detection head of the through-beam photoconductive detector is exposed. The dust in the cigarette working environment often causes the blocked detection window channel where the detection head is located to be frequently dirty, resulting in frequent misdetection of the detection head, which in turn causes the filter rod transmitter to frequently shut down, affecting the normal supply of filter rods;

[0006] 2. Difficult to maintain and clean, and maintenance takes a long time. Existing detection devices are usually installed on the filter rod conveying pipeline above the receiver, about 8 meters above the ground. Maintenance and cleaning require a lift truck to operate at high altitude, which is very inconvenient and has certain safety hazards. In addition, the detection device uses a split-type photoelectric device. When repairing or cleaning, the device needs to be disassembled and then installed. During the installation process, it is difficult to align the transmitter, receiving head and detection window directly and accurately. It is necessary to repeatedly disassemble and install the detection position and set external components to meet the detection requirements for production, which is time-consuming and labor-intensive.

[0007] 3. The existing detection device does not have a diagnostic prompt function, and it is impossible to check the operating status of the detection. It is necessary to conduct on-site maintenance at high altitude to confirm the operating status of the detection, which further increases the difficulty of maintenance and is time-consuming and labor-intensive. Utility Model Content

[0008] In view of the above-mentioned problems and defects existing in the prior art, the utility model provides a filter rod conveying pipeline blockage detection device, which monitors the running status of the detection in real time by setting an automatic cleaning structure, an integrated U-shaped photoelectric detection structure and an alarm unit, effectively solving the problem of false detection caused by frequent contamination of the photoelectric detection due to the working environment, avoiding cleaning timeout caused by repeated disassembly and adjustment, reducing the workload of maintenance personnel and improving production efficiency.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A filter rod conveying pipeline blockage detection device comprises a fixed base sleeved on the filter rod conveying pipeline and an integrated U-shaped opposite-beam photoelectric detector embedded in the fixed base;

[0011] The fixed base is symmetrically provided with a detection window channel connected to the outer wall of the filter rod conveying pipeline, and grooves are provided on the outer sides of the symmetrically provided detection window channels. The U-shaped ends of the integrated U-shaped opposing photoelectric detector are embedded in the symmetrically provided grooves, and the detection transmitting heads and the detection receiving heads respectively provided on the inner sides of the two sides of the U-shaped ends are directly facing and close to the detection window channel; a thread hole for fixing the clean air pipe joint is provided above the detection window channel, and a gas channel is provided downwardly from the center of the thread hole, and the gas channel is connected to the detection window channel;

[0012] A detection indicator light and a cable opening are provided on the outside of the U-shaped end of the integrated U-shaped opposed-beam photoelectric detector. The detection transmitter, the detection receiver, and the detection indicator light are all electrically connected to the detection cable inside the detector. The detection cable extends through the cable opening and is connected to an external controller.

[0013] A further technical solution is that a fixing hole is provided on one side of the U-shaped connecting end of the integrated U-shaped opposing photoelectric detector, and the vertical surface of the L-shaped fixing bracket is bolted to the fixing hole; an opening is provided on the fixing base, and the horizontal surface of the L-shaped fixing bracket is bolted to the opening on the fixing base.

[0014] According to a further technical solution, observation windows are respectively provided at the upper and lower ends of the fixed base.

[0015] According to a further technical solution, the observation window is a long strip opening, the long strip opening at the upper end is connected downward to the outer wall of the filter rod conveying pipe, and the long strip opening at the lower end is connected upward to the outer wall of the filter rod conveying pipe.

[0016] According to a further technical solution, the symmetrically arranged wire holes respectively fix the corresponding clean air pipe joints, the two clean air pipe joints are respectively connected to the two lower ports of the clean gas Y-shaped three-way component, and the upper port of the clean gas Y-shaped three-way component is connected to the clean air pipe.

[0017] According to a further technical solution, a solenoid valve is provided on the clean air pipe, and the solenoid valve is electrically connected to an external controller.

[0018] According to a further technical solution, fasteners are provided on both sides of the fixed base, and the fixed base is fixed with bolts using the fasteners.

[0019] According to a further technical solution, the external controller is electrically connected to the filter rod receiver and the filter rod transmitter, and is used to obtain the counting detection signal of the filter rod receiver and the operation signal of the filter rod transmitter respectively.

[0020] According to a further technical solution, the external controller is electrically connected to the sound and light alarm device.

[0021] According to a further technical solution, the sound and light alarm device includes a display and a speaker, wherein the display is used to display the detection on / off status and the alarm text in real time, and the speaker is used to broadcast fault and blockage alarms in real time by voice.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model provides a filter rod conveying pipeline blockage detection device, which realizes a self-diagnosis function by arranging an integrated U-shaped opposing photoelectric detector, a fixed base for fixing the integrated U-shaped opposing photoelectric detector, an automatic cleaning structure and an alarm device, and controlling the timed cleaning and manual cleaning functions of the U-shaped opposing photoelectric detector and monitoring the U-shaped photoelectric signal through a controller, monitoring the running state of the detection in real time; the device can also realize the rapid disassembly and assembly of the photoelectric detector, effectively solving the problem of false detection caused by frequent dirtiness of the photoelectric detection due to the working environment, avoiding cleaning timeout caused by repeated disassembly and adjustment, reducing the work intensity of maintenance personnel, and improving the effective operation rate of the equipment; the device is easy to manufacture and convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 It is a schematic diagram of the installation structure of an existing split-type opposite-beam photoelectric detector;

[0026] Figure 2 It is a schematic diagram of the installation structure of the filter rod conveying pipeline blockage detection device of the utility model;

[0027] Figure 3It is a structural schematic diagram of an integrated U-shaped opposing beam photoelectric detector in the device of the utility model;

[0028] Figure 4 It is a structural schematic diagram of a fixed base in the device of the utility model;

[0029] Figure 5 It is an electrical control connection block diagram of the device described in the utility model.

[0030] Among them, 1. Split detection transmitter; 2. Split detection window channel; 3. Transparent glass tube; 4. Split detection receiving head; 5. Fixed bracket; 6. Fixed base; 7. Integrated U-shaped photoelectric detector; 8. Fixed hole; 9. Detection transmitter and detection receiving head; 10. Detection indicator light; 11. Detection cable; 12. Detection window channel; 13. Gas channel; 14. Wire hole; 15. Observation window; 16. Groove; 17. Clean gas Y-type three-way component; 18. Clean gas pipe; 19. Clean gas pipe joint; 20. L-shaped fixed bracket; 21. Detection fixing screw. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] The existing split-type photoelectric detector is arranged on the filter rod conveying pipeline above the filter rod receiver, such as Figure 1As shown, the photoelectric detector includes a split fixed base, which is a rectangular structure, which is sleeved on the filter rod conveying pipe and bolted by a fastener on one side, and a split detection window channel 2 connected to the outer wall of the filter rod conveying pipe is symmetrically arranged inside the split fixed base, and the filter rod conveying pipe is a transparent glass tube 3, and a split detection transmitting head 1 and a split detection receiving head 4 are respectively fixedly arranged on the outside of the symmetrical split detection window channel 2, and a fixed bracket 5 bolted to the split fixed base is usually used to fix the split detection transmitting head 1 and the split detection receiving head 4, so that the split detection transmitting head and the split detection receiving head are opposite, and the photoelectric signal emitted by the split detection transmitting head 1 passes through the split detection window channel, the transparent glass tube, and the symmetrical split detection window channel to the split detection receiving head 4, so as to detect whether the filter rod transmitted in the tube is blocked.

[0034] However, there are certain problems when the above-mentioned existing split-type opposing photoelectric detector is used for filter rod detection. As mentioned in the background technology, in order to solve the existing problems, the utility model proposes a filter rod conveying pipeline blockage detection device. In view of the problem that the split-type opposing photoelectric detector is difficult to adjust the alignment position after disassembly, and multiple adjustments are required, which is time-consuming and labor-intensive, an integrated U-shaped opposing photoelectric detector 7 is adopted, and the fixed base is improved, the optimal observation window is mapped and calculated, the fixed base is grooved, and the integrated U-shaped opposing photoelectric detector is embedded in the fixed base. When blockage is detected, the filter rod transmitter is controlled to stop running. At the same time, the above design can effectively reduce dust falling on the detection head of the detector (including the detection transmitting head and the detection receiving head), can be quickly disassembled and adjusted for detection, can intuitively observe the situation inside the glass tube, and reduce detection caused by the external working environment. The frequency of dirt faults is measured to avoid repeated disassembly and adjustment of the detection position, which may cause equipment maintenance and cleaning timeouts, thereby reducing the workload of maintenance personnel; further, a hole is opened on the fixed base to the detection window channel, and a cleaning air pipe is connected to the hole to perform self-cleaning on the detection window channel and the detection head of the U-shaped photoelectric detector; S7-300PLC is used as a controller, and a program is designed to start the cleaning device at a fixed time to realize the timed cleaning or continuous cleaning function when the detection is judged to be dirty; S7-300PLC is used as a controller and a program is designed to realize the self-checking function of the filter rod conveying pipeline blockage detection through the detection running state combined with the state of other detections during the filter rod operation, and the detection running state is displayed, and an alarm prompt is issued when a fault is detected, thereby avoiding the need to look up drawings and measuring device signals to judge the detection running state and waste maintenance time. The utility model can realize the self-cleaning and self-diagnosis functions for the detection of filter rod conveying pipeline blockage, fix the detection and disassembly position, and improve the effective operation rate of the equipment.

[0035] like Figure 2As shown, the utility model proposes a filter rod conveying pipeline blockage detection device, comprising a fixed base 6 sleeved on the filter rod conveying pipeline and an integrated U-shaped opposite-beam photoelectric detector 7 embedded in the fixed base. Figure 3 As shown, the inner sides of the two sides of the U-shaped end of the integrated U-shaped opposite-beam photoelectric detector 7 are provided with a detection transmitting head and a detection receiving head 9 opposite to each other; Figure 4 As shown, the fixed base 6 is a rectangular structure, and a detection window channel 12 connected to the outer wall of the filter rod conveying pipe is symmetrically arranged inside the fixed base 6. Grooves 16 are provided on the outer sides of the symmetrically arranged detection window channels 12, and the U-shaped end of the integrated U-shaped opposing photoelectric detector 7 is embedded in the symmetrically arranged groove 16. The detection transmitting head and the detection receiving head 9 respectively arranged on the inner sides of both sides of the U-shaped end are opposite to and close to the detection window channel, so that the detection transmitting head and the detection receiving head 9 are opposite to each other through the detection window channel-filter rod conveying pipe-detection window channel. The filter rod conveying pipe is a transparent glass tube 3, so as to realize the filter rod blockage detection in the pipe, and by closely adhering to the detection window channel, the detection accuracy is improved, the dust and dirt on the detector in the working environment are reduced, and the detection failure caused by the detection dirt is reduced.

[0036] Further, a fixing hole 8 is provided on one side of the U-shaped connection end of the integrated U-shaped opposed-beam photoelectric detector 7, and the fixing hole is at least provided with one, and two symmetrical fixing holes are provided in this embodiment, and the vertical surface of the L-shaped fixing bracket 20 is bolted to the fixing hole 8 through the detection fixing screw 21; an opening is provided on the fixing base 6, and the opening is at least provided with one, and two symmetrical openings are provided in this embodiment, and the horizontal surface of the L-shaped fixing bracket 20 is bolted to the opening on the fixing base, such as Figure 2 As shown, the integrated U-shaped opposite-beam photoelectric detector embedded in the groove of the fixed base is further fixed on the fixed base. Through this design, the fixed position of the photoelectric detector is standardized and the position of the photoelectric detector is fixed, so that the photoelectric detector can be directly fixed and installed later, avoiding repeated disassembly and assembly to detect and adjust the position, and no repeated alignment and adjustment are required, which reduces the time for maintenance and cleaning.

[0037] like Figure 4 As shown, in the fixed base, a thread hole 14 for fixing the cleaning air pipe joint is provided above the detection window channel 12, and a gas channel 13 is provided downwardly at the center of the thread hole 14, and the gas channel 13 is connected to the detection window channel 12, and the gas is blown through the cleaning air pipe to clean the detection window channel and the detection receiving head and the detection transmitting head, so as to avoid frequent fault shutdown caused by dust and debris blocking the detection during work. In this embodiment, the diameter of the thread hole is 8mm, and the diameter of the gas channel is 4mm.

[0038] Furthermore, the best observation window 15 is measured and calculated on the fixed base, that is, the upper and lower ends of the fixed base are respectively provided with observation windows 15, such as Figure 4 As shown, the observation window 15 is a long strip opening, the long strip opening at the upper end is connected downward to the outer wall of the filter rod conveying pipe, and the long strip opening at the lower end is connected upward to the outer wall of the filter rod conveying pipe, so as to observe the operation in the glass tube. Through this design, it is convenient to troubleshoot and save maintenance time.

[0039] As another embodiment, Figure 2 As shown, the symmetrically arranged wire holes 14 are respectively used to fix the clean air pipe joints 19, and the two clean air pipe joints 19 are commonly connected to the clean gas Y-type three-way component 17, that is, they are respectively connected to the two lower ports of the clean gas Y-type three-way component 17, and the upper port of the clean gas Y-type three-way component 17 is connected to the clean air pipe 18. The clean air pipe 18 is provided with a solenoid valve, which is electrically connected to an external controller.

[0040] As another embodiment, fasteners are provided on both sides of the fixed base 6, and bolts are fixed by using the fasteners.

[0041] like Figure 3 As shown, a detection indicator light 10 and a cable opening are provided on the outside of the U-shaped end of the integrated U-shaped opposing photoelectric detector 7, and the detection transmitter, the detection receiver and the detection indicator light are all electrically connected to the detection cable 11 inside the detector, and the detection cable 11 extends out through the cable opening, and the detection cable 11 is electrically connected to an external controller, and the photoelectric sensitivity is adjusted by the controller to make the photoelectric detection more suitable for the current detection environment, and the logic detection and analysis in the controller is used to determine whether the blockage detection is faulty, and if it is faulty, the detection indicator light is controlled to change, thereby prompting the detection fault, thereby realizing the self-diagnosis function of the filter rod blockage detection.

[0042] Specifically, in this embodiment, S7-300PLC is used as a controller, and a control program is written to realize the automatic cleaning function and manual cleaning function of the detection. Among them, a solenoid valve is provided on the cleaning air pipe, and the solenoid valve is electrically connected to the controller. The automatic cleaning function is to control the solenoid valve to open at set time intervals (such as 2 hours) when the cigarette machine filter rod is running, and the gas in the cleaning air pipe is blown to clean the detection window, the detection transmitter head and the detection receiver head for 10 seconds; the controller is electrically connected to the cleaning button, and the cleaning button is pressed during manual cleaning, and the controller controls the solenoid valve to open, thereby realizing continuous cleaning. Cleaning uses positive pressure wind, the size of which is about 0.4Mpa, and the wind is turned on and off by controlling the solenoid valve.

[0043] The above controller diagnoses the quality and failure of the detection by monitoring the detection signal, such as Figure 5As shown, the controller is electrically connected to the detection transmitter and the detection receiver of the entire device, and is electrically connected to the solenoid valve, as well as the filter rod receiver and the filter rod transmitter. The controller obtains the filter rod blockage detection signal collected by the detection transmitter and the detection receiver, the counting detection signal of the filter rod receiver, and the operation signal of the filter rod transmitter. When the filter rod transmitter operates normally, the filter rod blockage detection signal should be in a pulse state or a continuous high level state (a high level is detected when the filter rod passes through the position of the detection device set on the pipeline, otherwise it is a low level). If the blockage detection signal is continuously in a low level state (i.e., no filter rod is detected), it can be determined that the detection is blocked or faulty. Furthermore, the controller then determines whether the detection is faulty. If the counting detection signal of the filter rod receiver is at a high level (i.e., the filter rod is always received), it can be determined that the U-shaped opposed-beam photoelectric detector is faulty or damaged. At this time, the detection indicator light on the U-shaped opposed-beam photoelectric detector lights up red, reminding the staff that the detection device needs further maintenance; if the counting detection signal is at a low level (i.e., no filter rod is detected), it can be determined that the U-shaped opposed-beam photoelectric detector is dirty or blocked. At this time, the detection indicator light on the U-shaped opposed-beam photoelectric detector lights up yellow, reminding the staff to perform manual cleaning. If manual cleaning is ineffective and the detection indicator light is always yellow, it is necessary to check whether the filter rod is blocked and clean the blocked filter rod.

[0044] As another embodiment, the controller is electrically connected to the sound and light alarm device, and when the blockage detection fails or is damaged, a sound and light alarm prompt is performed. The sound and light alarm device includes a display and a speaker. The display displays the detection on-off state (high and low levels, etc.) and the alarm text (fault or blockage, etc.) in real time, and the speaker performs a real-time voice broadcast of the fault or blockage alarm, thereby realizing the self-diagnosis function of the filter rod conveying pipeline blockage detection device. Further, the sound and light alarm device also includes an indicator light, which has the same function as the detection indicator light on the U-shaped photoelectric detector. When the controller determines that the U-shaped photoelectric detector is faulty or damaged, the indicator light in the sound and light alarm device lights up red, thereby reminding the staff to further repair the detection device; when the controller determines that the U-shaped photoelectric detector is dirty or blocked, the indicator light in the sound and light alarm device lights up yellow, reminding the staff to perform manual cleaning. If manual cleaning is ineffective and the indicator light is always on yellow, it is necessary to check whether there is filter rod blockage and clean the blocked filter rod.

[0045] The specific working process of the utility model is as follows:

[0046] The fixed base 6 of the filter rod conveying pipeline blockage detection device is sleeved on the filter rod conveying pipeline, and is bolted using fasteners on both sides of the fixed base 6, and the U-shaped end of the integrated U-shaped opposing photoelectric detector is embedded in the grooves on both sides of the fixed base, so that the detection transmitting head and the detection receiving head 9 arranged on the inner sides of both sides of the U-shaped end are respectively opposite to and close to the detection window channel 12 in the fixed base, and the fixed base 6 and the integrated U-shaped opposing photoelectric detector 7 are fixed by bolts using an L-shaped fixing bracket 20; symmetrically arranged thread holes 14 are provided on the fixed base 6, and a clean air pipe joint 19 is fixed through the thread holes 14, and the clean air pipe 18 is connected to the upper port of the clean gas Y-shaped three-way component 17, and the two lower ports of the clean gas Y-shaped three-way component 17 are respectively connected to the two fixed clean air pipe joints 19.

[0047] The detection cable of the integrated U-shaped opposing photoelectric detector 7 is connected to an external controller, and the controller obtains the filter rod blockage detection signal collected by the detection transmitter and the detection receiver. At the same time, the controller also collects the counting detection signal of the filter rod receiver and the operation signal of the filter rod transmitter by electrically connecting the filter rod receiver and the filter transmitter, and determines the detection blockage or fault according to the collected signals. The controller is also electrically connected to the sound and light alarm device, and sound and light alarm is issued according to the detection results.

[0048] Specifically, when the filter rod transmitter is operating normally, if the blockage detection signal is continuously at a low level, it can be determined that the detection is blocked or faulty, otherwise it is detected that there is no blockage or fault. Further, when it is determined that the detection is blocked or faulty, if the counting detection signal of the filter rod receiver is at a high level, it can be determined that the U-shaped photoelectric detector is faulty or damaged, and the controller controls the detection indicator light on the U-shaped photoelectric detector to light up in red, thereby reminding the staff to further inspect the detection device; if the counting detection signal is at a low level, it is determined that the U-shaped photoelectric detector is dirty or blocked, and the detection indicator light on the U-shaped photoelectric detector lights up in yellow, reminding the staff to perform manual cleaning. If manual cleaning is ineffective and the detection indicator light is always on in yellow, it is necessary to check whether the filter rod is blocked and clean the blocked filter rod. At the same time, according to the above detection results, an audible and visual alarm prompt is given. The indicator light in the audible and visual alarm device has the same function as the detection indicator light. The alarm is given by turning on the red light / yellow light. The display in the audible and visual alarm device displays the detection on / off status and the alarm text in real time. The speaker in the audible and visual alarm device performs real-time voice broadcast of faults or blockages, thereby realizing the self-diagnosis function of the filter rod conveying pipeline blockage detection device.

[0049] The utility model proposes a filter rod conveying pipeline blockage detection device. By designing an integrated U-shaped opposing photoelectric detector and a fixed base for fixing the integrated U-shaped opposing photoelectric detector, the photoelectric detector can be quickly disassembled and assembled, and the fixed base is opened on the upper and lower surfaces, so that the condition of the internal glass tube can be directly observed without disassembling the fixed base, which is convenient for troubleshooting; the integrated U-shaped opposing photoelectric detector is used to detect the blockage of the filter rod conveying pipeline, and the timed cleaning and manual cleaning functions of the U-shaped opposing photoelectric detector and the U-shaped photoelectric signal are controlled by a controller to realize the self-diagnosis function; this device reduces the failure rate of filter rod detection dirt, increases the method of fault maintenance, avoids repeated disassembly and adjustment of the detection position to cause equipment maintenance and cleaning timeout, and the newly added detection self-cleaning function and self-diagnosis function reduce the frequency of detection dirt failure caused by the external working environment. At the same time, it is judged whether the detection is faulty according to the monitoring detection signal, which reduces the maintenance time, reduces the work intensity of the maintenance personnel, and ensures the effective operation rate of the equipment. The full-time structure is simple and easy to manufacture and install.

[0050] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A filter rod conveying pipeline blockage detection device, characterized in that: It includes a fixed base sleeved on the filter rod conveying pipeline and an integrated U-shaped opposite-beam photoelectric detector embedded in the fixed base; The fixed base is symmetrically provided with a detection window channel connected to the outer wall of the filter rod conveying pipeline, and grooves are provided on the outer sides of the symmetrically provided detection window channels. The U-shaped ends of the integrated U-shaped opposing photoelectric detector are embedded in the symmetrically provided grooves, and the detection transmitting heads and the detection receiving heads respectively provided on the inner sides of the two sides of the U-shaped ends are directly facing and close to the detection window channel; a thread hole for fixing the clean air pipe joint is provided above the detection window channel, and a gas channel is provided downwardly from the center of the thread hole, and the gas channel is connected to the detection window channel; A detection indicator light and a cable opening are provided on the outside of the U-shaped end of the integrated U-shaped opposed-beam photoelectric detector. The detection transmitter, the detection receiver, and the detection indicator light are all electrically connected to the detection cable inside the detector. The detection cable extends through the cable opening and is connected to an external controller.

2. A filter rod conveying pipeline blockage detection device as claimed in claim 1, characterized in that: A fixing hole is provided on one side of the U-shaped connecting end of the integrated U-shaped opposing photoelectric detector, and the vertical surface of the L-shaped fixing bracket is bolted to the fixing hole; an opening is provided on the fixing base, and the horizontal surface of the L-shaped fixing bracket is bolted to the opening on the fixing base.

3. A filter rod conveying pipeline blockage detection device as claimed in claim 1, characterized in that: Observation windows are respectively provided at the upper and lower ends of the fixed base.

4. A filter rod conveying pipeline blockage detection device as claimed in claim 3, characterized in that: The observation window is a long strip opening, the long strip opening at the upper end is connected downward to the outer wall of the filter rod conveying pipeline, and the long strip opening at the lower end is connected upward to the outer wall of the filter rod conveying pipeline.

5. A filter rod conveying pipeline blockage detection device as claimed in claim 1, characterized in that: The symmetrically arranged thread holes respectively fix the corresponding clean air pipe joints, the two clean air pipe joints are respectively connected to the two lower ports of the clean gas Y-shaped three-way component, and the upper port of the clean gas Y-shaped three-way component is connected to the clean air pipe.

6. A filter rod conveying pipeline blockage detection device as claimed in claim 5, characterized in that: The clean air pipe is provided with a solenoid valve, and the solenoid valve is electrically connected to an external controller.

7. A filter rod conveying pipeline blockage detection device as claimed in claim 1, characterized in that: Fasteners are provided on both sides of the fixed base, and the fixed base is fixed with bolts by using the fasteners.

8. A filter rod conveying pipeline blockage detection device as claimed in claim 1, characterized in that: The external controller is electrically connected to the filter rod receiver and the filter rod transmitter, and is used to obtain the counting detection signal of the filter rod receiver and the operation signal of the filter rod transmitter respectively.

9. A filter rod conveying pipeline blockage detection device as claimed in claim 8, characterized in that: The external controller is electrically connected to the sound and light alarm device.

10. A filter rod conveying pipeline blockage detection device as claimed in claim 9, characterized in that: The sound and light alarm device comprises a display and a speaker. The display is used for displaying the detection on / off status and the alarm text in real time, and the speaker is used for real-time voice broadcasting of fault and blockage alarms.

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