Tobacco shred conveying speed partition adjustable system and adjusting method

Abstract

The invention provides a cut tobacco conveying speed partition adjustable system which comprises a blanking channel used for forming a cut tobacco falling channel; the fluidized bed is positioned at the tail end of the blanking channel; the partition jet device comprises a jet mechanism, a plurality of pipelines, a plurality of valves and an air pipe, a jet orifice facing the space between the blanking channel and the fluidized bed is formed in the front end of the jet mechanism, and the jet orifice is divided into a plurality of independent jet areas; the valves are located on the pipelines respectively and used for controlling the air supply pressure of the jet flow areas respectively. Air speed sensors are arranged above the jet orifices and correspond to the jet flow areas respectively, and the air speed sensors are used for monitoring the air speed of the jet flow areas in real time. The invention further provides a cut tobacco conveying speed adjusting method, and the cut tobacco conveying speed partition adjustable system is adopted in the cut tobacco conveying speed partition adjustable method. Compared with the prior art, the cut tobacco conveying speed partition adjustable system and method can comprehensively improve the cut tobacco feeding stability and uniformity of a cigarette making machine, guarantee the product quality and reduce the production cost.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing technology, and in particular to a system and method for adjusting the zoned speed of tobacco conveying. Background Technology

[0002] In the cigarette production process, the cigarette rolling machine first separates the lighter tobacco shreds from the heavier tobacco stems, and then feeds the separated tobacco shreds into a fluidized bed. The fluidized bed feeding system uses airflow to gently and stably transport the tobacco shreds to the suction belt surface of the suction guide rail. Under negative pressure, the tobacco shreds are adsorbed and transported to the next process to complete the rolling of the cigarette.

[0003] In existing technologies, due to fluctuations in feeding air pressure, differences in tobacco sorting, and variations in tobacco supply, the sorted tobacco generally exhibits uneven distribution across the width of the fluidized bed, primarily manifested as excessively thick or thin tobacco in localized areas. This problem is particularly pronounced in high-speed cigarette making machines, where a dual-fluidized-bed parallel feeding structure is typically employed. Furthermore, due to space constraints, the geometric dimensions and airflow channel curvature of the two fluidized beds often differ. This structural inconsistency makes it difficult to unify the flow rate and distribution of tobacco as it passes through the two fluidized beds. This not only affects the stable adsorption of tobacco onto the suction belt but also leads to fluctuations in the density of the tobacco layer adsorbed onto the suction belt. Consequently, this causes instability in key quality parameters such as cigarette weight, density, and pi during subsequent rolling processes, negatively impacting the quality stability of the cigarette product and resulting in raw material waste and increased scrap rates.

[0004] Therefore, there is an urgent need to develop an intelligent adjustment device and method that can accurately compensate and control the local or overall conveying speed based on the real-time distribution of tobacco shreds during the conveying process. This would fundamentally solve the problem of uneven tobacco shred distribution caused by differences in fluidized bed structure and fluctuations in incoming materials, thereby comprehensively improving the stability and uniformity of tobacco shred feeding in cigarette making machines, ensuring product quality, and reducing production costs. Summary of the Invention

[0005] To address the technical problems in the prior art, the present invention provides a zoned adjustable tobacco conveying speed system and adjustment method that can improve the uniformity of tobacco feeding.

[0006] A zone-adjustable tobacco conveying speed system includes: The feeding channel is used to create a path for the tobacco shreds to fall. The fluidized bed is located at the end of the material feeding channel; The zoned jetting device includes a jetting mechanism, multiple pipes, multiple valves, and air ducts. The front end of the jetting mechanism is provided with a jetting port facing the material discharge channel and the fluidized bed. The jetting port is divided into multiple independent jetting zones. Each jetting zone of the jetting mechanism is connected to an air duct through a pipe. The air duct is used to connect to an external fan to provide an air source for the jetting mechanism. Each of the valves is located on a pipe and is used to control the air supply pressure of each jetting zone. Each of the jet nozzles is equipped with a wind speed sensor above its respective jet region to monitor the wind speed in each jet region in real time.

[0007] Preferably, it includes a flow guiding mechanism, a material discharge hood, and two side plates. The flow guiding mechanism is located above the fluidized bed and together with the material discharge hood and the two side plates, forms the material discharge channel. The wind speed sensor is fixed to the bottom of the flow guiding mechanism.

[0008] Preferably, the flow guiding mechanism includes a fixed part and a movable part. The fixed part is located on the upper part of the flow guiding mechanism and is provided with a rotating shaft. The movable part is hinged to the rotating shaft so that the movable part can rotate relative to the fixed part around the rotating shaft.

[0009] Preferably, the top of the fixing part is provided with an observation window for observing the tobacco conveying status on the fluidized bed.

[0010] Preferably, the injection mechanism includes an air storage chamber and an injection plate. The air storage chamber is provided with multiple air chambers to form independent jet regions. The injection plate is located at the front end of the air storage chamber, and the injection port is provided on the injection plate.

[0011] A zoned adjustable tobacco conveying speed system includes a flow guiding mechanism, a material discharge cover, two side plates, a fluidized bed, and a zoned jet device. The flow guiding mechanism is located above the fluidized bed and together with the material discharge hood and the two side plates, forms a material discharge channel for the tobacco shreds to fall. The fluidized bed is located at the end of the material feeding channel; The zoned jetting device includes a jetting mechanism, multiple pipes, multiple valves, and air ducts. The jetting mechanism includes an air storage chamber with multiple air chambers to form independent jetting areas. The front end of the air storage chamber has a jetting port facing the material discharge channel and the fluidized bed. Each air chamber of the jetting mechanism is connected to an air duct via a pipe, and the air duct is connected to an external fan to provide air to the air chambers. Each valve is located on a pipe and is used to control the air supply pressure of each jetting area. The top of the flow guiding mechanism is provided with an observation window for observing the tobacco conveying status on the fluidized bed, and the bottom is provided with multiple wind speed sensors corresponding to each jet area, for real-time monitoring of the wind speed in each jet area. The controller connects the wind speed sensor and the valve, and is used to adjust the opening of the corresponding valve according to the current wind speed measured by the wind speed sensor in each jet area.

[0012] Preferably, the spraying mechanism further includes a spraying plate, which is fixed to the front end of the gas storage chamber and has multiple spraying grooves of equal width on its top. The spraying plate is tightly fitted with the material discharge cover to form multiple evenly distributed square spraying nozzles.

[0013] Preferably, the fluidized bed is a dual fluidized bed structure with a staggered left-right arrangement, including a front fluidized bed and a rear fluidized bed, and the front fluidized bed and the rear fluidized bed differ in geometric dimensions and airflow channel curvature.

[0014] A method for adjusting the speed of tobacco shreds conveying, employing the tobacco shreds conveying speed zone-adjustable system described above, the method comprising: Initial setup: Close all valves and start the fan to establish basic air pressure in the ductwork and air storage chamber; Observation and initial tobacco feeding: The tobacco feeding status of the fluidized bed is monitored in real time through the observation window, and the opening of each valve is finely adjusted to make the tobacco start to flow; Initial adjustment of uniformity: If the tobacco layer is too thin or there are gaps in a certain area of ​​the fluidized bed, the valve opening of the corresponding jet area should be reduced appropriately to reduce the jet velocity in that area; if the tobacco accumulation is too thick in a certain area of ​​the fluidized bed, the valve opening should be increased appropriately to increase the flow velocity. Data recording: After initial adjustment to stabilize the tobacco delivery, record the readings of the wind speed sensors in each jet area as the initial reference wind speed; Quality correlation test: Based on the initial reference wind speed, a small-range parameter disturbance test is conducted. The valve opening of one or more jet areas is systematically fine-tuned to change the local wind speed, and the quality parameters of the cigarettes rolled as a result are detected online. Establish the optimal parameter set: Through multiple comparative tests, find the wind speed in each jet area that enables the cigarette quality index to reach the optimal level, and save this wind speed combination and the corresponding valve opening parameters as the "optimal parameter set". Switch to automatic feedback control: The wind speed sensor in each jet area monitors the current wind speed in real time and feeds the signal back to the controller; the controller compares the real-time wind speed with the wind speed in the "optimal parameter set" and dynamically adjusts the opening of the corresponding valve to maintain the wind speed in each jet area within a preset fluctuation range near the set value.

[0015] Preferably, it further includes: if the data detected by the wind speed sensor in a certain jet area continues to decrease, the controller automatically controls the valve to make an instantaneous overshoot, using strong airflow to disperse the blocked tobacco, and then restores to normal control parameters.

[0016] Compared with existing technologies, the adjustable tobacco conveying speed system and method provided by this invention divides the nozzle of the partitioned jet device into multiple independent jet zones. Valves are installed on the pipes connecting each jet zone to control the air supply pressure of each jet zone. Wind speed sensors are installed above each nozzle corresponding to each jet zone to monitor the wind speed in real time. The valves can be adjusted according to the wind speed of each jet zone to control the air supply pressure of each jet zone. This allows for precise compensation and control of the local or overall conveying speed based on the real-time distribution of tobacco during the conveying process. This fundamentally solves the problem of uneven tobacco distribution caused by differences in fluidized bed structure and fluctuations in incoming materials, thereby comprehensively improving the stability and uniformity of tobacco feeding in cigarette machines, ensuring product quality, and reducing production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional assembly diagram of a zone-adjustable tobacco conveying speed system provided in one embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a three-dimensional composite view of the adjustable tobacco conveying speed system from another angle. Figure 3 for Figure 1 The image shows a combined side view of a zoned adjustable tobacco conveying speed system. Figure 4 for Figure 1 The exploded perspective view of the flow guiding mechanism, material discharge cover, and zoned jet device in the adjustable tobacco conveying speed zone system is shown. Figure 5 for Figure 1 The diagram shows a zoned adjustable tobacco conveying speed system with airflow feeding. Figure 6 This is a flowchart of a method for adjusting the tobacco conveying speed according to an embodiment of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0022] like Figure 1 As shown, this embodiment of the invention provides a zoned adjustable tobacco conveying speed system, mainly composed of a zoned jet device 3, a flow guiding mechanism 4, a channel mechanism 5, and a fluidized bed 2. The overall system structure is clear and easy to integrate into existing cigarette manufacturing equipment.

[0023] Combination Figure 2 and Figure 3 As shown, the fluidized bed 2 has a suction guide 1 at its front end. The suction guide 1 includes a front suction guide 101 and a rear suction guide 102. The fluidized bed 2 is correspondingly divided into a front fluidized bed 201 and a rear fluidized bed 202. The front fluidized bed 201 supplies material to the front suction guide 101, and the rear fluidized bed 202 supplies material to the rear suction guide 102. Due to equipment layout limitations, there are significant differences in geometric dimensions and airflow channel curvature between the front and rear fluidized beds, which can easily lead to uneven tobacco flow rate and distribution.

[0024] Further integration Figure 4As shown, the zoned jet device 3 includes components such as an air storage chamber 301, a jet plate 302, a sealing strip 303, a pipe 304, a valve 305, an air duct 306, and screws 307. The air duct 306 is connected to a fan, providing a stable air source for the system. The air storage chamber 301 has six air chambers, each forming an independent jet region. Six valves 305 are connected to the six independent jet regions of the air storage chamber 301 via pipes 304, enabling independent control of the air supply pressure in different regions. The valves can be operated manually or automatically, offering good operational flexibility. The jet plate 302 is connected to the air storage chamber 301 via screws 307. Its bottom is designed with a grooved structure 309, which cooperates with the front support 310 of the air storage chamber and is reliably sealed by the sealing strip 303. The top of the jet plate 302 has multiple equally wide jet grooves 308, which fit tightly against the material discharge cover 501 of the channel mechanism 5, forming multiple evenly distributed square jet nozzles.

[0025] The channel mechanism 5 includes a discharge hood 501, two side plates 502, and screws 503. The discharge hood 501, the two side plates 502, and the flow guiding mechanism 4 together form a discharge channel for the tobacco shreds to fall. The discharge hood 501 is fixed to the top of the gas storage chamber by screws 503, and the side plates 502 on both sides press it tightly to ensure that a sealed spray structure is formed between it and the spray groove 308.

[0026] The flow guiding mechanism 4 includes a fixed part 403 and a movable part 404. The fixed part 403 is located at the upper part of the flow guiding mechanism and is provided with a rotating shaft 402. The movable part 404 is hinged to the rotating shaft 402, allowing the movable part 404 to rotate relative to the fixed part 403 around the rotating shaft. The top of the fixed part 403 is provided with an observation window 1 for observing the tobacco conveying status on the fluidized bed. The bottom of the flow guiding mechanism 4 is provided with six wind speed sensors 401, corresponding to six jet areas, for real-time monitoring of the wind speed in each area. The movable part 404 can rotate around the rotating shaft 402, facilitating lifting for cleaning during maintenance and lowering it to fit tightly against the side plate 502 during production, causing the tobacco conveying channel to gradually narrow. According to the Venturi effect, channel contraction can increase airflow velocity, thereby enhancing tobacco conveying capacity.

[0027] The tobacco shreds fall from above the channel mechanism 5 and reach the bottom of the feeding channel under the action of gravity. Before the tobacco shreds fall into the fluidized bed, the zoned jet device sprays compressed air to give the tobacco shreds a reasonable initial velocity, ensuring that they enter the fluidized bed smoothly. When uneven feeding or airflow fluctuations occur, the flow rate of the local tobacco shreds can be precisely controlled by adjusting the valve 305 in the corresponding area, so as to achieve a uniform distribution of tobacco shreds in the conveying width direction, thereby improving the quality of cigarette forming.

[0028] This system is not only applicable to dual fluidized bed structures with staggered left and right layouts, but can also be extended to vertical layouts, single fluidized beds, multi-fluidized beds, and other tobacco feeding mechanisms. It has wide applicability and flexible configuration capabilities, and can realize zoned online adjustment of tobacco conveying speed, thereby improving the intelligence level and stability of the whole machine operation.

[0029] It should be noted that the number of system valves and corresponding control areas described in this invention is not limited to six, but is merely an example. In actual applications, the number can be flexibly configured to other quantities according to the fluidized bed width, process requirements, and control precision.

[0030] The following is combined with Figure 6 The workflow of the tobacco conveying speed adjustment method in this embodiment is described in detail. The system and method described in this embodiment aim to solve the problem of uneven tobacco distribution caused by structural differences and material fluctuations during the tobacco feeding process in a fluidized bed (especially a dual fluidized bed). Through zoned jet control, online and precise adjustment of the tobacco conveying speed is achieved. Online adjustment requires a controller (e.g., a PLC controller), which connects to wind speed sensors and valves. This controller adjusts the opening of the corresponding valves based on the current wind speed measured by the wind speed sensors in each jet area. If manual adjustment is required, a controller is not needed; the operator can manually adjust the valve opening by monitoring the tobacco conveying status at the bottom of the fluidized bed 2 in real time through the observation window 6. The online adjustment method is described below.

[0031] I. System Initialization and Manual Coarse-tuning Mode After the equipment is started for the first time or the tobacco brand is changed, system initialization and parameter preset are required. The steps are as follows: Initial setup: Close all 6 valves 305. Start the fan to establish basic air pressure in the duct 306 and air storage chamber 301.

[0032] Observation and initial tobacco feeding: The operator monitors the tobacco feeding status at the bottom of the upstream fluidized bed 201 and the downstream fluidized bed 202 in real time through the observation window 6. The opening of each valve 305 is slowly and sequentially fine-tuned to allow the tobacco to begin flowing.

[0033] Initial uniformity adjustment: If the tobacco layer is too thin or there are gaps in a certain area of ​​the fluidized bed, the valve opening of the corresponding jet area should be appropriately reduced to decrease the jet velocity in that area; if the tobacco accumulation is too thick in a certain area of ​​the fluidized bed, the valve opening should be appropriately increased to increase the flow velocity. The goal of this stage is to eliminate the risk of blockage at the bottom of the fluidized bed and achieve basic uniform coverage of tobacco.

[0034] Data recording: After initial adjustment to stabilize the tobacco delivery, record the readings of the wind speed sensor 401 in each zone (jet area) [V1, V2, ..., V6] as the initial reference wind speed.

[0035] II. Parameter Optimization and Automatic Control Mode After establishing a stable supply through manual coarse adjustments, the process moves into fine adjustments and optimization to pursue the best cigarette quality.

[0036] Quality correlation test: Based on the initial reference wind speed, a small-scale parameter disturbance test is conducted. The valve opening of one or more jet areas is systematically fine-tuned to change the local wind speed, while key quality parameters such as weight, density, and pi of the cigarettes rolled as a result are monitored online.

[0037] Establish the optimal parameter set: Through multiple comparative tests, identify the wind velocities [V1', V2', ..., V6'] in the six jet zones that achieve the optimal cigarette quality indicators (such as cigarette quality and empty head rejection rate). Save this wind velocity combination and the corresponding valve opening parameters as the "optimal parameter set".

[0038] Switch to automatic feedback control: Switch the system to automatic control mode. The control system uses the wind speed of the "optimal parameter set" as the setpoint. The wind speed sensor 401 in each jet area monitors the current wind speed in real time and feeds the signal back to the controller; the controller compares the real-time wind speed with the setpoint and dynamically adjusts the opening of the corresponding valve 305 to maintain the wind speed in each jet area within an allowable preset fluctuation range (e.g., ±5%) near the setpoint.

[0039] This closed-loop control system can automatically compensate for changes in conveying speed caused by factors such as fluctuations in gas source pressure, changes in tobacco supply, and differences in fluidized bed structure, thereby achieving continuous and stable tobacco distribution.

[0040] III. Troubleshooting and Maintenance If the data detected by the wind speed sensor 401 in a certain jet area continues to decrease, it indicates that the amount of tobacco being delivered in that area is too high. The system can automatically control the valve to make a momentary overshoot (briefly increase the opening) to use strong airflow to disperse the blocked tobacco, and then return to the normal control parameters.

[0041] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A system for adjusting the speed of tobacco delivery in zones, characterized in that, The system comprises: a material falling channel for forming a channel for tobacco falling; a fluidized bed located at the end of the material falling channel; a zoned jet device comprising a jet mechanism, a plurality of pipes, a plurality of valves, and an air pipe, the jet mechanism being provided with a jet opening at the front end thereof, the jet opening being divided into a plurality of independent jet zones; each jet zone of the jet mechanism is connected to the air pipe through a pipe, the air pipe being connected to an external air blower to provide air source for the jet mechanism; each valve is arranged on each pipe to control the air supply pressure of each jet zone; wherein, above each jet opening, a wind speed sensor corresponding to each jet zone is arranged to monitor the wind speed of each jet zone in real time.

2. A tobacco delivery rate zoning system according to claim 1, wherein, The system comprises a guide mechanism, a material falling shell, and two side plates, the guide mechanism being located above the fluidized bed and forming the material falling channel together with the material falling shell and the two side plates, and the wind speed sensor being fixed to the bottom of the guide mechanism.

3. A tobacco delivery rate zoning system according to claim 2, wherein, The guide mechanism comprises a fixed part and a movable part, the fixed part being located at the upper part of the guide mechanism and being provided with a rotating shaft, and the movable part being hinged to the rotating shaft so that the movable part can rotate relative to the fixed part around the rotating shaft.

4. A tobacco delivery rate zoning system according to claim 3, wherein, The top of the fixed part is provided with an observation window for observing the tobacco conveying state on the fluidized bed.

5. A tobacco delivery rate zoning system according to claim 1 wherein, The jet mechanism comprises an air storage chamber and a jet plate, the air storage chamber being provided with a plurality of air cavities to form independent jet zones, and the jet plate being located at the front end of the air storage chamber, and the jet opening being arranged on the jet plate.

6. A tobacco conveying speed zoning adjustable system, characterized in that, The system comprises a guide mechanism, a material falling shell, two side plates, a fluidized bed, and a zoned jet device; The guide mechanism is located above the fluidized bed and forms a material falling channel together with the material falling shell and the two side plates for tobacco falling; a fluidized bed located at the end of the material falling channel; a zoned jet device comprising a jet mechanism, a plurality of pipes, a plurality of valves, and an air pipe, the jet mechanism comprising an air storage chamber, the air storage chamber being provided with a plurality of air cavities to form independent jet zones, and the front end of the air storage chamber being provided with a jet opening towards the material falling channel and the fluidized bed; each air cavity of the jet mechanism is connected to the air pipe through a pipe, and the air pipe is connected to an external air blower to provide air source for the air cavity; each valve is arranged on each pipe to control the air supply pressure of each jet zone; wherein, the top of the guide mechanism is provided with an observation window for observing the tobacco conveying state on the fluidized bed, and the bottom of the guide mechanism is provided with a plurality of wind speed sensors corresponding to each jet zone to monitor the wind speed of each jet zone in real time; a controller connected to the wind speed sensor and the valve to adjust the opening degree of the corresponding valve according to the current wind speed measured by the wind speed sensor of each jet zone.

7. A tobacco delivery rate zoning system according to claim 6, wherein, The jet mechanism further comprises a jet plate, the jet plate being fixed to the front end of the air storage chamber and being provided with a plurality of equal-width jet grooves at the top thereof, the jet plate being closely attached to the material falling shell to form a plurality of uniformly distributed square jet openings.

8. A tobacco delivery rate zoning system according to claim 6, wherein, The fluidized bed is a double-fluidized bed structure with left-right staggered layout, comprising a front fluidized bed and a rear fluidized bed, and the front fluidized bed and the rear fluidized bed are different in geometric size and air flow channel curvature.

9. A method of adjusting the tobacco conveying speed, characterized in that, The method using the tobacco conveying speed zoned adjustable system as claimed in claim 6, 7, or 8 comprises: Initial state setting: all valves are closed, the fan is started, and the air duct and gas chamber establish the basic gas source pressure; Observation and initial tobacco feeding: the fluidized bed tobacco feeding state is monitored in real time through the observation window, and the valve opening is fine-tuned to make the tobacco start to flow; Preliminary uniformity adjustment: if the tobacco layer in a certain area of the fluidized bed is too thin or appears to be blank, the valve opening of the corresponding jet area is appropriately reduced to reduce the jet speed in this area; if the tobacco accumulation in a certain area of the fluidized bed is too thick, the valve opening is appropriately increased to increase the flow rate; Data recording: after the preliminary adjustment to stabilize the tobacco feeding, the readings of the wind speed sensors in each jet area at this time are recorded as the initial reference wind speed; Quality correlation test: on the basis of the initial reference wind speed, small-range parameter perturbation tests are conducted, the valve openings of one or more jet areas are systematically fine-tuned, the local wind speed is changed, and the quality parameters of the cigarettes rolled at this time are detected online; Establishment of optimal parameter set: through multiple comparison tests, the wind speeds of each jet area corresponding to the optimal cigarette quality indicators are found out, and the wind speed combination and the corresponding valve opening parameters are saved as the "optimal parameter set"; Switching to automatic feedback control: the wind speed sensors in each jet area monitor the current wind speed in real time and feed the signal back to the controller; the controller compares the real-time wind speed with the "optimal parameter set" wind speed and dynamically adjusts the opening of the corresponding valve to maintain the wind speed in each jet area within a preset fluctuation range around the set value.

10. The tobacco conveyance speed adjusting method according to claim 9, characterized by, Also includes: If the data detected by the wind speed sensor in a certain jet area continues to drop, the controller automatically controls the valve to perform instantaneous overshoot, uses strong airflow to disperse the blocked tobacco, and then returns to the normal control parameters.

Images