A method and system for regulating cut tobacco morphology in a cigarette making machine based on cut tobacco morphology detection and cut tobacco proportion

Abstract

This invention provides a method and system for controlling the tobacco morphology of a cigarette machine based on the detection and proportion of recycled tobacco morphology. The method involves: a) establishing a correlation between the morphology of recycled tobacco and the morphology of the tobacco bundle; b) acquiring the recycled tobacco proportion and morphology parameters; c) determining the corresponding range of recycled tobacco morphology parameters from a database or graph based on the expected values ​​of the morphology parameters of the currently produced tobacco bundle, and further determining the target adjustment range for the recycled tobacco proportion; d) continuously adjusting the relevant operating parameters of the cigarette machine according to the target adjustment range for the recycled tobacco proportion until the real-time recycled tobacco proportion meets the target adjustment range. This invention utilizes the characteristics that recycled tobacco is closer to the tobacco bundle forming node and that the morphology of recycled tobacco has a positive correlation with the morphology of the tobacco bundle. By leveraging the capabilities of the recycled tobacco module, it detects the recycled tobacco morphology parameters and achieves efficient control of the tobacco morphology through the relationship between these parameters and the recycled tobacco proportion, as well as the relationship between the recycled tobacco proportion and the operating parameters of the cigarette machine.

Description

Technical Field

[0001] This invention relates to the field of cigarette production and testing technology, specifically to a method and system for controlling the shape of tobacco shreds in cigarette machines based on the detection of recycled shred morphology and the proportion of recycled shreds. Background Technology

[0002] In recent years, with the rapid development of slim and medium-length cigarettes, the industry has increasingly focused on the quality stability and production costs of these cigarettes, such as issues like empty cigarette ends and combustion cone tipping. This is mainly because the tobacco morphology of slim and medium-length cigarettes has not been adjusted accordingly to the cigarette specifications, resulting in poor quality and stability of the cigarette products and affecting subsequent rolling processes. Meanwhile, the industry has conducted research on tobacco morphology control during the tobacco processing stage. Control points are generally located after cutting and drying, which present problems such as long distances from the cigarette rolling process, numerous processes, and long tobacco storage times. The industry lacks research on tobacco morphology detection and control during the cigarette rolling process and lacks corresponding technical support, making it impossible to achieve the goal of real-time detection and control of the tobacco morphology of raw materials for cigarette rolling. Therefore, implementing online detection and control of tobacco morphology during the cigarette rolling process to improve the machine adaptability of raw materials and enhance the rolling quality of slim and medium-length cigarettes has become an urgent problem to be solved in the industry.

[0003] Patents with publication numbers CN118716672A and CN118716661A disclose a method and system for detecting and controlling the morphology of tobacco shreds after air separation and a method and system for controlling the morphology of tobacco shreds, respectively. These methods measure the length, width, and curl of tobacco shreds at specified steps in the tobacco processing in real time. Based on the real-time measured values, they provide comprehensive and continuous feedback adjustments to the shredder, dryer, and length adjustment equipment, ensuring that the morphology of the tobacco shreds remains stably within the target range of morphological parameters. However, the drying and air separation processes are relatively far from the tobacco shreds forming process, and the morphology of the tobacco shreds still undergoes a certain degree of change during the transportation process. Therefore, the method has limited effectiveness and accuracy in controlling the quality of the rolled tobacco shreds.

[0004] The patent with publication number CN116076780 A discloses a real-time measurement and control method for the proportion of tobacco scraps in a cigarette machine. It measures the weight of tobacco scraps on the tobacco scrap collection conveyor belt of the cigarette machine and calculates the proportion of tobacco scraps within that time period based on the amount of tobacco scraps, thereby realizing the measurement and control of the proportion of tobacco scraps. However, it only adjusts based on the proportion of tobacco scraps (the percentage of the weight of tobacco scraps), which is not accurate or comprehensive enough, and it does not involve the detection and control of the tobacco morphology of the cigarette machine.

[0005] Based on the shortcomings of the existing technologies mentioned above, it is necessary to develop a detection and control method that is closer to the tobacco bundle forming stage, has higher detection accuracy, and better characterization effect, so as to control the morphology of tobacco and make it meet the requirements of cigarette rolling machine, in order to solve the current problem of quality stability of medium and fine cigarettes. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a method and system for controlling the shape of tobacco shreds in cigarette making machines based on the detection of the morphology and proportion of recycled shreds. This method and system achieves better control and higher adjustment accuracy because the detection points are closer to the tobacco bundle forming process.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a method for controlling the shape of tobacco shreds in a cigarette machine based on the detection of recycle morphology and the recycle ratio. a. Establish the correlation rules between the morphology of re-shredded tobacco and running tobacco: In the production setting, the waste ratio data is collected in real time, and different waste ratio data are obtained by changing the operating parameters of the cigarette machine; The morphological parameters of the recycled tobacco under different recycled ratios were detected and obtained. At the same time, the morphological parameters of the rolled tobacco strips under different recycled ratios were detected and obtained. The parameters of recycled tobacco, recycled tobacco morphology, and running tobacco morphology are summarized and established into a database. Corresponding curves of recycled tobacco morphology and running tobacco morphology under different recycled tobacco ratios are generated. At the same time, the expected values ​​of running tobacco morphology for different brands are set into the database. b. Obtain the proportion and morphological parameters of recycled tobacco fibers for the currently produced brand of cigarettes in the production scenario; c. Based on the expected values ​​of the morphological parameters of the currently produced brand of tobacco shreds, determine the corresponding range of recycled shred morphological parameters from the database or curve chart as the target adjustment range, and further determine the target adjustment range of the recycled shred ratio. d. Continuously adjust the relevant operating parameters of the cigarette machine according to the target adjustment range of the recycle ratio, and monitor in real time whether the recycle morphology parameters meet the target adjustment range.

[0008] In the prior art, the VE tobacco supply system of a cigarette machine adjusts the tobacco supply through mechanisms such as belts and needle rollers. After the tobacco is sucked and shaped, it forms a tobacco bundle. In order to ensure that the weight of a single cigarette of the same brand is a fixed value, the leveler cuts off the excess tobacco from the tobacco bundle and collects it. The excess tobacco is then returned to the tobacco supply system by the cigarette machine's return system for reuse.

[0009] In this invention, the recycle ratio is set as the ratio of the weight of the tobacco shreds cut from the tobacco bundle per unit time to the weight of the corresponding length of tobacco bundle before cutting.

[0010] Based on the characteristics of the recycled tobacco processing technology, it is known that when the proportion of recycled tobacco increases, the degree of tobacco breakage increases, meaning the morphological parameter (tobacco length) becomes shorter; conversely, when the proportion of recycled tobacco decreases, the degree of tobacco breakage decreases, meaning the morphological parameter (tobacco length) becomes relatively shorter. In other words, there is a positive correlation between the morphological parameter (tobacco length) of recycled tobacco from the cigarette rolling machine and the morphological parameter (tobacco length) of the tobacco in the rolled tobacco roll. The morphological parameter of the recycled tobacco, after correction, is used to characterize the morphology of the tobacco in the rolled tobacco roll of the cigarette rolling machine, that is, the morphology of the tobacco within the rolled tobacco roll after it has been formed.

[0011] Under this rule, the higher the proportion of recycled tobacco in the cigarette machine, the shorter the length of the recycled tobacco and the shorter the length of the tobacco strips that run out of the cigarette machine; the lower the proportion of recycled tobacco in the cigarette machine, the longer the length of the recycled tobacco and the longer the length of the tobacco strips that run out of the cigarette machine. This rule can be used to obtain the corresponding parameters from the production line, establish a database and curves, and make feedback adjustments based on this correlation.

[0012] Specifically, by measuring the morphological parameters of the tobacco shreds returned by the cigarette machine in real time to obtain the adjustment amount, and by continuously feeding back and controlling the proportion of tobacco shreds returned by the cigarette machine according to the adjustment amount, the morphology of the tobacco shreds in the cigarette machine is kept within the target range, which helps to improve the quality and stability of cigarette products.

[0013] Based on the above, in step d, it is also necessary to compare the real-time rewind ratio with the range required by the process parameters to determine whether the real-time rewind ratio is within the required range.

[0014] This is because the adjustment of the working parameters of a cigarette rolling machine is not unlimited; there are corresponding standard requirements. Therefore, the working parameters required by the process parameters need to be taken into consideration.

[0015] Based on the above, in step d, the relevant operating parameters of the cigarette rolling machine include the belt speed and the needle roller voltage. These two parameters directly affect the forming shape of the tobacco bundle and the axial density of the tobacco, thus affecting the recycle ratio.

[0016] Based on the above, the morphological parameters of the recycled tobacco include at least one of the length, width, and curl of the recycled tobacco, and the morphological parameters of the running tobacco include at least one of the length, width, and curl of the running tobacco.

[0017] Based on the above, the rewinding morphology parameter is the length of the rewinding, and the running tobacco morphology parameter is the length of the running tobacco.

[0018] Since length is a relatively prominent value in the matching process of tobacco rewinding, the significant parameter affected by the leveling device cutting off excess tobacco is length, and the difference is greater.

[0019] Based on the above, the recycle ratio is obtained by calculating the recycle weight; the recycle morphology parameters are obtained by image recognition.

[0020] A cigarette machine tobacco morphology control system based on recycle morphology detection and recycle ratio is used to implement the cigarette machine tobacco morphology control method based on recycle morphology detection and recycle ratio. It includes a cigarette machine VE tobacco feeding system, a tobacco return conveying channel, a tobacco return weighing device, a tobacco return morphology detection device, a tobacco return mechanism, a data processing module, and a control unit; The cigarette machine VE feeding system is the original feeding system of the cigarette machine, which includes a return module; The waste yarn conveying channel is connected to the waste yarn module to obtain waste yarn samples, and the obtained waste yarn samples are transported to the waste yarn weighing device in real time. The waste tobacco weighing device weighs the acquired waste tobacco sample and sends the weighing data to the data processing module. The data processing module calculates the waste tobacco ratio in real time based on the target weight of the tobacco filling for the cigarette, the real-time operating speed of the equipment, and the weight of the waste tobacco acquired per unit time. After being weighed, the recycled yarn is transported to a recycled yarn morphology detection device, which detects the morphological parameters of the recycled yarn and sends the detection results to a data processing module. The data processing module determines the parameter adjustment range of the cigarette machine according to the cigarette machine tobacco morphology control method based on the detection of recycle morphology and the recycle ratio. The control unit is used to adjust the parameter adjustment range of the cigarette rolling machine.

[0021] This system is based on the original cigarette machine's VE feeding system and return module, and can fully realize the aforementioned control methods.

[0022] Based on the above, the tobacco morphology detection device is a tobacco morphology detection device based on a high-speed camera.

[0023] This invention possesses significant substantive features and substantial advancements compared to existing technologies. Specifically, it utilizes the correlation between the proportion of recycled tobacco, recycled tobacco morphology parameters, and the morphology parameters of the cigarette rolls to perform online recycled tobacco sampling for different brands of cigarettes. An online image acquisition system collects recycled tobacco image information, extracts recycled tobacco morphology features, and obtains the recycled tobacco morphology parameters of the cigarette rolling machine. Based on the established correlation, the adjustment amount of the recycled tobacco morphology parameters is determined. Based on the adjustment amount of the recycled tobacco morphology parameters, comprehensive and continuous feedback control is performed on the relevant equipment parameters of the cigarette rolling machine, ensuring that the tobacco morphology of the cigarette rolling machine remains stably within the target range. This invention helps improve the quality and stability of cigarette products, increase the effective operating rate of equipment, and reduce production consumption and the defect rate. Attached Figure Description

[0024] Figure 1This is a control flowchart of the cigarette machine tobacco morphology control method based on recycle morphology detection and recycle ratio in this invention.

[0025] Figure 2 This is a flowchart of the detection process for the proportion and shape of recycled cigarette fibers in the cigarette machine in this invention.

[0026] Figure 3 This is a schematic diagram of the structural principle of the cigarette machine tobacco morphology control system based on recycle morphology detection and recycle ratio in this invention.

[0027] In the diagram: 1. Cigarette rolling machine VE system; 2. Tobacco return conveying channel; 3. Tobacco return weighing device; 4. Communication connection line; 5. Conveyor belt; 6. Tobacco return morphology detection device; 7. Tobacco return mechanism; 8. Communication connection line; 9. Data processing module; 10. Communication connection line; 11. Control unit; 12. Control line. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below through specific embodiments. Example 1

[0029] like Figure 1 and Figure 2 As shown, a method for controlling the shape of tobacco shreds in a cigarette machine based on the detection of recycle morphology and the recycle ratio is presented. Establish the correlation rules between the morphology of re-shredded tobacco and the morphology of loose tobacco: It should be noted that the process of establishing patterns is a process of data collection and aggregation rather than a process of regulation. Various adjustments in this process rely on human participation and do not need to be completed in real time; they belong to the preprocessing stage.

[0030] Specifically, in a production setting, the proportion of recycled cigarette fibers is statistically analyzed in real time, and different proportions of recycled cigarette fibers are obtained by changing the operating parameters of the cigarette machine.

[0031] In this embodiment, the recycle ratio refers to the ratio of the weight of the tobacco shreds cut from the tobacco bundle per unit time to the weight of the corresponding length of tobacco bundle before cutting.

[0032] The morphological parameters of the recycled tobacco under different recycled ratios were detected and obtained. At the same time, the morphological parameters of the rolled tobacco strips under different recycled ratios were detected and obtained.

[0033] Among them, the morphological parameters of the recycled tobacco can be detected, identified and acquired by an online image detection unit, while the morphology of the tobacco in the running tobacco needs to be manually sampled from the tobacco on the cigarette machine belt that is not wrapped with cigarette paper. That is, the morphology of the tobacco inside the tobacco strip needs to be detected, identified and acquired. The latter process is not completed in real time, so the sampling time needs to be recorded so that its data can be compared with the recycled tobacco data.

[0034] The parameters of recycled tobacco, recycled tobacco morphology, and running tobacco morphology are summarized and established into a database. Corresponding curves of recycled tobacco morphology and running tobacco morphology under different recycled tobacco ratios are generated. At the same time, the expected values ​​of running tobacco morphology for different brands are set into the database.

[0035] Generally, for the same brand of tobacco (with the same formula), there is only one corresponding curve for the expected target range. For example, the expected target range is: tobacco characteristic size 2.6-2.8, tobacco uniformity coefficient 2.2-2.4.

[0036] Among them, the higher the proportion of recycled tobacco in the cigarette rolling machine, the shorter the length of the recycled tobacco and the shorter the length of the tobacco that runs in the cigarette rolling machine; the lower the proportion of recycled tobacco in the cigarette rolling machine, the longer the length of the recycled tobacco and the longer the length of the tobacco that runs in the cigarette rolling machine.

[0037] The expected value is set by selecting the tobacco length parameter that has good rolling quality stability, low material consumption, and cigarette combustion state that meets consumer needs as the expected value, and then obtaining the target range of tobacco length after rolling.

[0038] Plot the corresponding curves of the length characteristics of the recycled tobacco and the running tobacco under different recycling ratios, and set the target range of the recycled tobacco length based on the target range of the running tobacco length after rolling.

[0039] It is important to note that using the recycle ratio and recycle shape allows for real-time feedback control of the rolled tobacco. The recycle ratio is a process indicator for cigarette manufacturing, directly guiding operators and maintenance personnel in adjusting the equipment. The recycle shape, however, is merely an inspection indicator for the tobacco, with no directly adjustable parameter on the equipment side. Relying solely on the recycle shape and the shape of the rolled tobacco cannot directly achieve the control objective. The recycle ratio is the most effective control method chosen in this embodiment for its influence on the recycle shape. Furthermore, during normal production operation, the recycle ratio is a process indicator after equipment adjustment; however, there is currently no direct and accurate data on this indicator. These combined factors mean that the recycle ratio, as an adjustable parameter, needs to be correlated with other inspection indicators to achieve the desired adjustment.

[0040] b. Obtain the proportion and morphological parameters of recycled tobacco fibers for the currently produced brand of cigarettes in the production scenario.

[0041] The specific process can be described as follows: The cigarette machine waste tobacco online sampling mechanism collects waste tobacco from the cigarette machine. The sampling location is at the main waste tobacco sampling hopper of the cigarette machine. The waste tobacco collected per unit time is sent to the weighing mechanism through the tobacco conveying mechanism. The data processing module calculates the real-time waste tobacco ratio of the cigarette machine based on the real-time waste tobacco weighing data, the target weight of the tobacco filling in the cigarette, and the real-time operating speed of the equipment. After weighing, the tobacco enters the feed inlet of the tobacco morphology detection device, which detects the tobacco morphology parameters online.

[0042] The morphological parameters of the tobacco shreds returned by the cigarette rolling machine include the length, width, and curvature of the tobacco shreds. In this embodiment, the length of the tobacco shreds is a necessary parameter to be detected.

[0043] In this embodiment, the morphological parameters of the tobacco shreds can be obtained from the tobacco shreds image of the cigarette rolling machine. In other embodiments, other methods can be used to obtain the morphological parameters of the tobacco shreds. The tobacco shred morphology detection device performs grayscale conversion, Gaussian filtering and edge detection on the appearance image of the tobacco shred sample to extract the contour information of the appearance image of the tobacco shred sample. Preferably, an image of the tobacco sample is captured using a high-speed camera. Based on the contour information of the image, the data processing module calculates the length, width, and curl of the tobacco sample.

[0044] c. Based on the expected values ​​of the morphological parameters of the currently produced brand of tobacco shreds, determine the corresponding range of recycled shred morphological parameters from the database or curve chart as the target adjustment range, and further determine the target adjustment range of the recycled shred ratio.

[0045] This is because different brands of cigarettes have different requirements for the morphology of the tobacco strips. Based on the requirements of the current cigarette brands, the target range of the morphological parameters of the tobacco strips is first determined by comparing with the established database. Then, the target adjustment range of the morphological parameters of the recycled tobacco strips is obtained, and the target adjustment range of the recycled tobacco strip ratio is further obtained. The relationship between these steps is progressive.

[0046] d. Continuously adjust the relevant operating parameters of the cigarette machine according to the target adjustment range of the recycle ratio, and monitor in real time whether the recycle morphology parameters meet the target adjustment range.

[0047] Specifically, in this embodiment, this step involves continuously adjusting the speed of the cigarette machine belt and the voltage of the needle roller according to the rewind ratio adjustment amount until the rewind length meets the target range; at the same time, the detected real-time rewind ratio is compared with the required range of process parameters to determine that the real-time rewind ratio is within the required range.

[0048] It should be noted that, in the real-time production process, only the morphological parameters of the recycled tobacco can be obtained in real time. The morphological parameters of the running tobacco are difficult to obtain in real time because they have already been rolled and formed. They can only be obtained through offline sampling. Running tobacco requires the machine to be stopped, the cigarette paper on the paper feeding roller to be removed, the machine to be manually adjusted to the target speed, and the tobacco from the cigarette gun (belt) outlet to be collected.

[0049] Therefore, the purpose of using the recycled tobacco and the running tobacco to characterize the morphological parameters of the running tobacco by establishing a comparison relationship in this embodiment is of positive significance.

[0050] By measuring the morphological parameters of the tobacco shreds returned by the cigarette machine in real time to obtain the adjustment amount, and continuously controlling the proportion of tobacco shreds returned by the cigarette machine based on the adjustment amount, the morphology of the tobacco shreds in the cigarette machine is kept within the target range, which helps to improve the quality and stability of cigarette products.

[0051] Table 1 shows the target range and measured values ​​of the tobacco morphology parameters of Grade A slim cigarettes before and after adjustment. As can be seen from Table 1, the back tobacco of Grade A cigarettes was longer before adjustment. When the needle roller voltage parameter was adjusted from -1900mV to -1200mV, the real-time back tobacco ratio of the cigarette machine increased from 34.27% to 43.39%. After adjustment, the characteristic length of back tobacco of Grade A cigarettes was 2.61mm, which is within the target range.

[0052] Table 1 Recycled yarn percentage (%) 30-60 34.27 43.39 Feature length (mm) 2.5±0.2 2.86 2.64 Length distribution uniformity 2.0±0.1 2.04 1.98 Table 2 shows the target range of tobacco morphology parameters for brand B slim cigarettes and the measured values ​​before and after adjustment. As can be seen from Table 2, the back tobacco of brand B cigarettes was shorter before adjustment. When the needle roller voltage parameter was adjusted from 200mV to -600mV, the real-time back tobacco ratio of the cigarette machine decreased from 58.27% to 48.08%. After adjustment, the back tobacco characteristic length of brand A cigarettes was 2.87mm, which is within the target range.

[0053] Table 2 Recycled yarn percentage (%) 30-60 58.27% 48.08 Feature length (mm) 2.8±0.3 3.04 2.87 Length distribution uniformity 2.1±0.1 1.96 2.08 Example 2

[0054] like Figure 3 As shown, a cigarette machine tobacco morphology control system based on recycle morphology detection and recycle ratio is used to implement the cigarette machine tobacco morphology control method based on recycle morphology detection and recycle ratio. It includes a cigarette machine VE tobacco feeding system 1, a tobacco return conveying channel 2, a tobacco return weighing device 3, a tobacco return morphology detection device 6, a tobacco return mechanism 7, a data processing module 9, and a control unit 11.

[0055] The cigarette machine VE feeding system 1 is the original feeding system of the cigarette machine, which includes a return module.

[0056] The waste yarn conveying channel 2 is connected to the waste yarn module to obtain waste yarn samples, and the obtained waste yarn samples are transported to the waste yarn weighing device 3 in real time.

[0057] The recycled tobacco weighing device 3 weighs the acquired recycled tobacco sample and sends the weighing data to the data processing module 9 via the communication connection line 4. The data processing module 9 calculates the recycled tobacco ratio in real time based on the target weight of the tobacco filling for the cigarette, the real-time operating speed of the equipment, and the weight of the recycled tobacco acquired per unit time.

[0058] After being weighed, the recycled yarn is conveyed by the conveyor belt 5 to the recycled yarn morphology detection device 6. The recycled yarn morphology detection device 6 detects the morphological parameters of the recycled yarn and sends the detection results to the data processing module 9 through the communication connection line 8.

[0059] The data processing module 9 determines the parameter adjustment range of the cigarette machine according to the cigarette machine tobacco morphology control method based on the detection of recycle morphology and the recycle ratio, and sends the parameter adjustment range as an instruction to the control unit 11 through the communication connection line 10. In this embodiment, the control unit is a PLC control system.

[0060] The control unit 11 is connected to the cigarette machine's VE tobacco supply system via control line 12, and is used to adjust the parameter adjustment range of the cigarette machine.

[0061] This system is an upgrade of the original cigarette machine's VE tobacco feeding system's tobacco return module. It enables the real-time acquisition of the tobacco return ratio and morphology parameters, allowing the implementation of a tobacco morphology control scheme based on tobacco return detection. Since this process step is closer to the tobacco bundle forming node, this control is more effective and direct in terms of the final tobacco morphology, resulting in better performance.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for controlling the shape of tobacco shreds in a cigarette machine based on the detection of recycle morphology and the recycle ratio, characterized in that: a. Establish the correlation rules between the morphology of re-shredded tobacco and running tobacco: In the production setting, the waste ratio data is collected in real time, and different waste ratio data are obtained by changing the operating parameters of the cigarette machine; The morphological parameters of the recycled tobacco under different recycled ratios were detected and obtained. At the same time, the morphological parameters of the rolled tobacco strips under different recycled ratios were detected and obtained. The parameters of recycled tobacco, recycled tobacco morphology, and running tobacco morphology are summarized and established into a database. Corresponding curves of recycled tobacco morphology and running tobacco morphology under different recycled tobacco ratios are generated. At the same time, the expected values ​​of running tobacco morphology for different brands are set into the database. b. Obtain the proportion and morphological parameters of recycled tobacco fibers for the currently produced brand of cigarettes in the production scenario; c. Based on the expected values ​​of the morphological parameters of the currently produced brand of tobacco shreds, determine the corresponding range of recycled shred morphological parameters from the database or curve chart as the target adjustment range, and further determine the target adjustment range of the recycled shred ratio. d. Continuously adjust the relevant operating parameters of the cigarette machine according to the target adjustment range of the recycle ratio, and monitor in real time whether the recycle morphology parameters meet the target adjustment range.

2. The method for controlling the tobacco morphology of a cigarette machine based on the detection of recycled tobacco morphology and the proportion of recycled tobacco as described in claim 1, characterized in that: In step d, it is also necessary to compare the real-time refrigerant ratio with the range required by the process parameters to determine whether the real-time refrigerant ratio is within the required range.

3. The method for controlling the tobacco morphology of a cigarette machine based on the detection of recycle morphology and the recycle ratio according to claim 1, characterized in that: In step d, the relevant operating parameters of the cigarette machine include the speed of the cigarette machine feed belt and the voltage of the needle roller.

4. The method for controlling the tobacco morphology of a cigarette machine based on the detection of recycle morphology and the recycle ratio according to claim 1, characterized in that: The recycle morphology parameters include at least one of the recycle length, width, and curl degree, and the running tobacco morphology parameters include at least one of the running tobacco length, width, and curl degree.

5. The method for controlling the tobacco morphology of a cigarette machine based on the detection of recycle morphology and the recycle ratio according to claim 1, characterized in that: The rewinding morphology parameter refers to the length of the rewinding, and the running tobacco morphology parameter refers to the length of the running tobacco.

6. The method for controlling the tobacco morphology of a cigarette machine based on the detection of recycle morphology and the recycle ratio according to claim 1, characterized in that: The recycle ratio is obtained by calculating the online recycle sampling and weighing method; the recycle morphology parameters are obtained by image recognition.

7. A tobacco morphology control system for cigarette machines based on waste morphology detection and waste ratio, characterized in that: For implementing the cigarette machine tobacco morphology control method based on recycle morphology detection and recycle ratio as described in any one of claims 1-6; It includes a cigarette machine VE tobacco feeding system, a tobacco return conveying channel, a tobacco return weighing device, a tobacco return morphology detection device, a tobacco return mechanism, a data processing module, and a control unit; The cigarette machine VE feeding system is the original feeding system of the cigarette machine, which includes a return module; The waste yarn conveying channel is connected to the waste yarn module to obtain waste yarn samples, and the obtained waste yarn samples are transported to the waste yarn weighing device in real time. The waste tobacco weighing device weighs the acquired waste tobacco sample and sends the weighing data to the data processing module. The data processing module calculates the waste tobacco ratio in real time based on the target weight of the tobacco filling for the cigarette, the real-time operating speed of the equipment, and the weight of the waste tobacco acquired per unit time. After being weighed, the recycled yarn is transported to a recycled yarn morphology detection device, which detects the morphological parameters of the recycled yarn and sends the detection results to a data processing module. The data processing module determines the parameter adjustment range of the cigarette machine according to the cigarette machine tobacco morphology control method based on the detection of recycle morphology and the recycle ratio. The control unit is used to adjust the parameter adjustment range of the cigarette rolling machine.

8. The cigarette machine tobacco morphology control system based on recycle morphology detection and recycle ratio according to claim 7, characterized in that: The tobacco morphology detection device is a tobacco morphology detection device based on a high-speed camera.

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