Method and system for adjusting proportion of rolled hard waste
By establishing a nonlinear regression model of needle roller voltage and belt speed, determining the target combination for regulation, the problem of low accuracy of wire return ratio adjustment in cigarette machines is solved, and rapid response and precise control are achieved for each cigarette machine, reducing the number of changes in the cigarette machine. Tobacco loss.
Patent Information
- Application Number
- CN202411309438.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2024-12-27
AI Technical Summary
In existing cigarette machines, relying on experience to adjust the needle roller voltage and belt speed, the wire return ratio adjustment accuracy is low, and the target wire return ratio cannot be quickly and accurately reached. The performance of different cigarette machines varies greatly, making it difficult to meet the requirements of rapid and accurate regulation.
By obtaining the actual wire return ratio, a nonlinear regression model of needle roller voltage and belt speed and wire return ratio is established, the target needle roller voltage and belt speed combination is determined, and rapid and precise regulation is carried out according to the model, reducing tobacco loss and improving winding process control is improved ability.
It realizes rapid response and effective control of the wire return ratio of each cigarette machine, improves the accuracy and efficiency of the rolling process, reduces tobacco loss, and is suitable for precise regulation of different cigarette machines.
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Figure CN119184344A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of cigarette production, and in particular relates to a method and system for adjusting the ratio of rolled waste. Background Art
[0002] The cigarette making machine rolls tobacco into cigarettes with the help of cigarette paper, tipping paper, filter rods and other materials. In this process, there are many key process parameter combinations that affect the quality indicators of cigarettes, such as the ratio of recycled wire, the speed of the throwing roller and the specifications of the leveler. The ratio of recycled wire is the weight of the tobacco recovered per unit time to the amount of tobacco supplied per unit time, which is adjusted by the belt speed and the needle roller voltage. When the belt speed and the needle roller voltage increase, the amount of tobacco supplied at the tobacco suction forming point increases, the amount of tobacco recovered after being cut off by the leveler increases, the amount of recycled wire increases, and the ratio of recycled wire increases, and vice versa. The degree of tobacco shreds varies with the change of the ratio of recycled wire, and the change of tobacco structure usually has a direct impact on the quality indicators of rolled cigarettes (including: conventional physical indicators of cigarettes, such as cigarette weight, draw resistance, hardness and stability; other physical indicators of cigarettes, such as dynamic draw resistance, density and its consistency and stability and the tendency of burning cone head falling; cigarette consumption indicators, such as empty heads, end drop and dust content, etc.). Therefore, it is necessary to accurately control the proportion of recycled silk to ensure the stability of cigarette quality indicators.
[0003] The invention patent application with application publication number CN116076780A discloses a real-time measurement method and real-time control method for the waste silk ratio of a cigarette making machine, and adjusts the belt motor speed and needle roller motor voltage of the cigarette making machine according to the waste silk ratio adjustment amount, but does not disclose the adjustment values of the belt motor speed and needle roller motor voltage of the cigarette making machine. At present, when various cigarette industrial enterprises adjust the waste silk ratio, they generally rely on experience to adjust the belt speed and needle roller voltage one by one. However, the relationship between the needle roller voltage and the belt speed and the waste silk ratio is nonlinear, so it is impossible to accurately and quickly adjust the needle roller voltage and belt speed to the required waste silk ratio by relying on experience for multiple adjustments. The adjustment accuracy is low, and the performance of each cigarette making machine is different. It is impossible to meet the requirements of fast and accurate control of the waste silk ratio under different cigarette making machines by relying solely on experience. Summary of the invention
[0004] The object of the present invention is to provide a method and system for adjusting the ratio of winding waste wire, so as to solve the problem of low precision of adjusting the ratio of waste wire caused by adjusting the voltage of needle roller and the speed of belt by experience.
[0005] In order to solve the above technical problems, the present invention provides a method for adjusting the proportion of winding waste wire, comprising:
[0006] The actual wire return ratio during the winding process is obtained, and the adjustment amount of the wire return ratio is determined according to the absolute value of the difference between the target wire return ratio and the actual wire return ratio;
[0007] If the adjustment amount of the waste silk ratio is greater than the set threshold, multiple groups of combinations of target needle roller voltage and belt speed corresponding to the target waste silk ratio are determined in the waste silk ratio control model, and one group of target needle roller voltage and belt speed combinations are selected from them; the waste silk ratio control model is obtained by measuring the waste silk ratio of the cigarette machine under different needle roller voltages and different belt speeds, and performing nonlinear regression analysis on the two independent variables of needle roller voltage and belt speed and the dependent variable of waste silk ratio to obtain the model;
[0008] Control is performed based on the selected target needle roller voltage and belt speed combination.
[0009] Further, the selected set of target needle roller voltage and belt speed combinations is a combination that is less different from the current needle roller voltage and belt speed.
[0010] Furthermore, the selection process of the target needle roller voltage and belt speed combination is as follows: when the wire waste ratio adjustment amount is greater than the set threshold value and less than the first threshold value, the current belt speed is used as the target belt speed, and the target needle roller voltage corresponding to the target wire waste ratio is calculated in the wire waste ratio control model based on the current belt speed; when the wire waste ratio adjustment amount is greater than the first threshold value, if the belt speed calculated in the wire waste ratio control model based on the current needle roller voltage is within the normal working range of the cigarette machine belt speed, then the target needle roller voltage during control is the current needle roller voltage, and the target belt speed is the calculated belt speed, otherwise the target belt speed during control is the speed limit within the normal working range of the belt, and the target needle roller voltage is the needle roller voltage calculated in the wire waste ratio model based on the speed limit within the normal working range of the belt; the first threshold value is greater than the set threshold value.
[0011] Furthermore, the process of determining the wire waste ratio control model includes establishing a three-column vector matrix consisting of two independent variables, needle roller voltage and belt speed, and one dependent variable, wire waste ratio, according to the wire waste ratio corresponding to different needle roller voltages and different belt speeds of the cigarette machine, and selecting a nonlinear fitting function to perform nonlinear regression analysis on the three-column vector matrix to obtain the wire waste ratio control model through fitting.
[0012] The beneficial effects of the above technical scheme are as follows: the present invention is an improved invention, which performs nonlinear regression analysis on the corresponding wire waste ratios of the actually measured cigarette making machines under different needle roller voltages and different belt speed conditions, and obtains the wire waste ratio control model corresponding to the different gradient combinations of needle roller voltage and belt speed by fitting, and determines the target needle roller voltage and belt speed combination according to the wire waste ratio control model and the target wire waste ratio, and performs directional and quantitative control quickly and accurately according to the determined target needle roller voltage and belt speed combination, which solves the problem of low adjustment accuracy and low adjustment efficiency caused by adjustment based only on operating experience, and greatly reduces the amount of tobacco loss during the control process, realizes effective control and rapid response of the wire waste ratio of each cigarette making machine, and improves the ability to control the rolling process.
[0013] In order to solve the above technical problems, the present invention also provides a winding wire waste ratio adjustment system, including a controller and a wire waste ratio measuring device for measuring the actual wire waste ratio, the controller is used to obtain the actual wire waste ratio in the rolling process, and determine the wire waste ratio adjustment amount according to the absolute value of the difference between the target wire waste ratio and the actual wire waste ratio; if the wire waste ratio adjustment amount is greater than the set threshold, multiple groups of combinations of target needle roller voltage and belt speed corresponding to the target wire waste ratio are determined in the wire waste ratio control model, and a group of target needle roller voltage and belt speed combinations are selected from them; control is performed according to the selected target needle roller voltage and belt speed combination; the wire waste ratio control model is obtained by measuring the corresponding wire waste ratio of the cigarette making machine under different needle roller voltages and different belt speeds, and performing nonlinear regression analysis on the two independent variables of needle roller voltage and belt speed and the dependent variable of wire waste ratio.
[0014] Further, the selected set of target needle roller voltage and belt speed combinations is a combination that is less different from the current needle roller voltage and belt speed.
[0015] Furthermore, the selection process of the target needle roller voltage and belt speed combination is as follows: when the wire waste ratio adjustment amount is greater than the set threshold value and less than the first threshold value, the current belt speed is used as the target belt speed, and the target needle roller voltage corresponding to the target wire waste ratio is calculated in the wire waste ratio control model based on the current belt speed; when the wire waste ratio adjustment amount is greater than the first threshold value, if the belt speed calculated in the wire waste ratio control model based on the current needle roller voltage is within the normal working range of the cigarette machine belt speed, then the target needle roller voltage during control is the current needle roller voltage, and the target belt speed is the calculated belt speed; otherwise, the target belt speed during control is the speed limit within the normal working range of the belt, and the target needle roller voltage is the needle roller voltage calculated in the wire waste ratio model based on the speed limit within the normal working range of the belt.
[0016] Furthermore, the process of determining the wire waste ratio control model includes establishing a three-column vector matrix consisting of two independent variables, needle roller voltage and belt speed, and one dependent variable, wire waste ratio, according to the wire waste ratio corresponding to different needle roller voltages and different belt speeds of the cigarette machine, and selecting a nonlinear fitting function to perform nonlinear regression analysis on the three-column vector matrix to obtain the wire waste ratio control model through fitting.
[0017] Furthermore, the waste tobacco ratio measuring device includes a calculation module and a weighing module. The weighing module is used to measure the weight of the running tobacco rod within a set time and the weight of the waste tobacco of the cigarette making machine after being cut by the leveler. The calculation module is used to calculate the actual waste tobacco ratio based on the weight of the running tobacco rod and the weight of the waste tobacco.
[0018] Furthermore, the waste wire ratio measuring device includes a calculation module and a laser scanning module. The laser scanning module is used to measure the instantaneous material flow of tobacco on the waste wire collection conveyor belt in real time. The calculation module is used to calculate the waste wire amount within a set time according to the instantaneous material flow, and calculate the actual waste wire ratio according to the waste wire amount.
[0019] The beneficial effects of the above technical scheme are as follows: the present invention is an improved invention, which performs nonlinear regression analysis on the corresponding wire waste ratios of the actually measured cigarette making machines under different needle roller voltages and different belt speed conditions, and obtains the wire waste ratio control model corresponding to the different gradient combinations of needle roller voltage and belt speed by fitting, and determines the target needle roller voltage and belt speed combination according to the wire waste ratio control model and the target wire waste ratio, and performs directional and quantitative control quickly and accurately according to the determined target needle roller voltage and belt speed combination, which solves the problem of low adjustment accuracy and low adjustment efficiency caused by adjustment based only on operating experience, and greatly reduces the amount of tobacco loss during the control process, realizes effective control and rapid response of the wire waste ratio of each cigarette making machine, and improves the ability to control the rolling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a flow chart of adjusting the ratio of winding wire waste in a system embodiment of the present invention;
[0021] Figure 2 Another flow chart of adjusting the ratio of winding wire waste according to the embodiment of the system of the present invention;
[0022] Figure 3 It is a surface diagram of the needle roller voltage and the belt speed corresponding to the yarn waste ratio in the system embodiment of the present invention. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings.
[0024] The present invention performs nonlinear regression analysis on the corresponding wire waste ratios of cigarette making machines under different needle roller voltages and different belt speeds of actually measured cigarette making machines, and obtains a wire waste ratio control model corresponding to different gradient combinations of needle roller voltage and belt speed by fitting. The needle roller voltage and belt speed combination are determined according to the wire waste ratio control model and a target wire waste ratio adjustment amount. Directional quantitative control is performed quickly and accurately based on the determined needle roller voltage and belt speed combination, thereby solving the problem of low adjustment accuracy and low adjustment efficiency caused by adjustment based only on operating experience. The amount of tobacco loss is greatly reduced during the control process, thereby achieving effective control and rapid response to the wire waste ratio of each cigarette making machine, and improving the ability to control the rolling process.
[0025] System Example
[0026] The present invention provides a winding wire waste ratio adjustment system, comprising a controller and a wire waste ratio measuring device for measuring the actual wire waste ratio. The controller is used to implement a winding wire waste ratio adjustment method. The implementation principle of the method is as follows: Figure 1 As shown, the detailed description is given below.
[0027] 1. After measuring the waste silk ratio of the cigarette machine under different needle roller voltages and belt speeds, a nonlinear regression analysis was performed on the two independent variables of needle roller voltage and belt speed and the dependent variable of waste silk ratio, and then a waste silk ratio control model was obtained by fitting.
[0028] The waste yarn ratio is adjusted by the speed of the needle roller motor and the belt motor. However, in the cigarette making machine setting, the two parameters that can quantify the speed of the needle roller motor and the belt motor are the needle roller voltage and the belt speed. Therefore, the needle roller voltage and the belt speed are selected for fitting. Specifically, the process of determining the waste yarn ratio control model includes:
[0029] 1) Under normal production conditions, after recording the needle roller voltage and the belt speed, the wire waste ratio corresponding to the needle roller voltage and the belt speed is obtained through a wire waste ratio measuring device.
[0030] As an embodiment, the waste ratio measuring device includes a calculation module and a weighing module. The weighing module is used to measure the weight of the running tobacco within a set time and the weight of the waste tobacco of the cigarette making machine after being cut by the leveler. The calculation module is used to calculate the actual waste ratio according to the weight of the running tobacco and the weight of the waste tobacco. The waste tobacco of the cigarette making machine after being cut by the leveler within a set time is manually taken and weighed. At the same time, the running tobacco within the set time is manually taken and weighed. The calculation module calculates the waste ratio of the cigarette making machine according to the following formula:
[0031]
[0032] As another embodiment, the waste wire ratio measuring device includes a calculation module and a laser scanning module. The laser scanning module is used to measure the instantaneous material flow of the tobacco on the waste wire collection conveyor belt in real time. The measurement method is: laser scanning the material contour of the tobacco on the waste wire collection conveyor belt, and obtaining the data of the contour section points at different times, and performing corresponding spatial coordinate mapping on the data of each contour section point to form the three-dimensional information of the overall material contour, and then calculating the instantaneous material flow through mathematical calculation of the instantaneous flow based on the surface element integral, combined with the measured instantaneous speed of the belt. The calculation module is used to calculate the mass of the waste wire tobacco within the set time according to the instantaneous material flow, and the calculation formula of the waste wire amount is as follows:
[0033]
[0034] Among them, P(t) is the instantaneous material flow rate and t is the set time.
[0035] The calculation formula for the actual wire waste ratio is:
[0036]
[0037] 2) Combine different gradients of needle roller voltage with different gradients of belt speed, repeat the above operation several times, and record the yarn waste ratio under different combination parameters, as shown in Table 1.
[0038] Table 1
[0039]
[0040]
[0041] 3) According to the measured waste silk ratio of the cigarette machine under different needle roller voltages and different belt speeds, a matrix consisting of three column vectors of two independent variables, needle roller voltage and belt speed, and one dependent variable, waste silk ratio, is established. A nonlinear fitting function is used to perform nonlinear regression analysis on the three-column vector matrix, and a waste silk ratio control model is fitted, and the fitted model is used to predict and verify the new independent variable data. The nonlinear fitting function can use the nlinfit function, the lsqnonlin function, or the lsqcurvefit function. The waste silk ratio control model fitted in this embodiment is:
[0042] Wire recycling ratio = 1.153 × needle roller voltage 0.401 +0.474×belt speed 1.183 +19.610
[0043] According to the fitting equation, a surface graph of needle roller voltage, belt speed and wire waste ratio is drawn, such as Figure 3 shown.
[0044] 2. According to the absolute value of the difference between the target wire return ratio and the actual wire return ratio, determine the wire return ratio adjustment amount. If the wire return ratio adjustment amount is greater than the set threshold, then according to the target wire return ratio, determine multiple sets of target needle roller voltage and belt speed combinations corresponding to the target wire return ratio in the wire return ratio control model, select one set of target needle roller voltage and belt speed combinations from them, and control according to the selected target needle roller voltage and belt speed combination to adjust the wire return ratio of the cigarette making machine to the target wire return ratio. The threshold can be set to 0, or it can be customized according to the adjustment accuracy.
[0045] Since there are multiple sets of target needle roller voltages and belt speeds corresponding to the same target wire recycling ratio, a set of target needle roller voltage and belt speed combinations can be selected for regulation according to actual needs. The belt speed is regulated by adjusting the speed of the cigarette machine wire recycling belt motor, and the needle roller voltage is regulated by adjusting the needle roller motor voltage of the cigarette machine. As an optional implementation, the belt speed and the needle roller voltage can be adjusted simultaneously, so that the belt speed and the needle roller voltage can be accurately regulated under the guidance of the regulation model, so that the regulated cigarette machine can achieve the target wire recycling ratio.
[0046] In order to further improve the control efficiency, in an optional embodiment of the present invention, a set of target needle roller voltage and belt speed combinations are selected for control according to the waste yarn ratio adjustment amount, and the control process is as follows: Figure 2 As shown. When the adjustment amount of the wire waste ratio is greater than the set threshold value and less than the first threshold value, the target belt speed during regulation is the current belt speed, and the needle roller voltage corresponding to the target wire waste ratio is calculated in the wire waste ratio regulation model according to the current belt speed, and the calculated needle roller voltage is used as the target needle roller voltage, and regulation is performed according to the current belt speed and the calculated needle roller voltage combination; when the adjustment amount of the wire waste ratio is greater than the first threshold value, the belt speed is adjusted first, and if the belt speed does not meet the demand even if it is adjusted to the limit value, the needle roller voltage is combined with the needle roller voltage for regulation, specifically: if the belt speed calculated in the wire waste ratio regulation model according to the current needle roller voltage is within the normal working range of the cigarette machine belt speed, the target needle roller voltage during regulation is the current needle roller voltage, and the target belt speed is the calculated belt speed, otherwise the target belt speed during regulation is the speed limit value within the normal working range of the belt, and the target needle roller voltage is the needle roller voltage calculated in the wire waste ratio model according to the speed limit value within the normal working range of the belt; the speed limit value within the normal working range of the belt includes a maximum value and a minimum value. The size of the above-mentioned wire waste ratio adjustment amount is judged by the first threshold value. When the actual wire waste ratio is greater than the first threshold value, the wire waste ratio adjustment amount is larger, otherwise the wire waste ratio adjustment amount is smaller. The first threshold value can be determined according to the performance of the needle roller motor and the belt motor of the cigarette making machine. The first threshold value is greater than the set threshold value.
[0047] As another embodiment, the target combination for regulation can be selected based on the difference between the current needle roller voltage and belt speed and each target needle roller voltage and belt speed. Specifically, the first difference between the current needle roller voltage and each target needle roller voltage, and the second difference between the current belt speed and each target belt speed are calculated, and the differences are all greater than 0. The sum of the first difference and the second difference is calculated, and the target needle roller voltage and belt speed combination with the smaller sum of the first difference and the second difference is selected to regulate the waste wire ratio. Preferably, the target needle roller voltage and belt speed combination with the smallest sum of the first difference and the second difference is selected to regulate the waste wire ratio. The needle roller voltage can be set through the cigarette machine operation panel, and its setting range is 0 to 1100mv. The voltage currently commonly used is 200 to 800mv, and the needle roller voltage is steplessly adjustable within this range.
[0048] By coordinating and adjusting the needle roller voltage and belt speed in a targeted, directional and quantitative manner, the wire return ratio can be adjusted accurately and quickly to the target wire return ratio, improving the control ability and accuracy of the wire return ratio parameters of the cigarette making machine, avoiding the trial adjustment of the wire return ratio based on experience, and effectively reducing the loss cost of tobacco and production time cost. The target wire return ratio needs to be optimized according to different specifications, brands, and formula design requirements, and the wire return ratio parameter with the best physical indicators is selected as the most suitable wire return ratio, which is used as the target wire return ratio during debugging.
[0049] As a preferred embodiment, the belt speed and needle roller voltage control device are controlled to automatically control the belt speed and the needle roller voltage. As another embodiment, the belt speed and the needle roller voltage control device can also be manually controlled according to the target needle roller voltage and belt speed combination determined by the controller.
[0050] Method Embodiment
[0051] The present invention also provides a method for adjusting the ratio of winding waste wire. The specific implementation process of the method has been described in detail in the system embodiment and will not be repeated here.
Claims
1. A method for adjusting the proportion of winding waste wire, characterized in that: include: The actual wire return ratio during the winding process is obtained, and the adjustment amount of the wire return ratio is determined according to the absolute value of the difference between the target wire return ratio and the actual wire return ratio; If the adjustment amount of the waste silk ratio is greater than the set threshold, multiple groups of combinations of target needle roller voltage and belt speed corresponding to the target waste silk ratio are determined in the waste silk ratio control model, and one group of target needle roller voltage and belt speed combinations are selected from them; the waste silk ratio control model is obtained by measuring the waste silk ratio of the cigarette machine under different needle roller voltages and different belt speeds, and performing nonlinear regression analysis on the two independent variables of needle roller voltage and belt speed and the dependent variable of waste silk ratio to obtain the model; Control is performed based on the selected target needle roller voltage and belt speed combination.
2. The method for adjusting the ratio of winding waste wire according to claim 1, characterized in that: The selected set of target needle roller voltage and belt speed combinations is a combination that is less different from the current needle roller voltage and belt speed.
3. The method for adjusting the ratio of winding waste wire according to claim 1, characterized in that: The selection process of the target needle roller voltage and belt speed combination is as follows: when the wire waste ratio adjustment amount is greater than the set threshold value and less than the first threshold value, the current belt speed is used as the target belt speed, and the target needle roller voltage corresponding to the target wire waste ratio is calculated in the wire waste ratio control model based on the current belt speed; when the wire waste ratio adjustment amount is greater than the first threshold value, if the belt speed calculated in the wire waste ratio control model based on the current needle roller voltage is within the normal working range of the cigarette machine belt speed, then the target needle roller voltage during control is the current needle roller voltage, and the target belt speed is the calculated belt speed, otherwise the target belt speed during control is the speed limit within the normal working range of the belt, and the target needle roller voltage is the needle roller voltage calculated in the wire waste ratio model based on the speed limit within the normal working range of the belt; the first threshold value is greater than the set threshold value.
4. The method for adjusting the ratio of winding waste wire according to any one of claims 1 to 3, characterized in that: The process of determining the wire waste ratio control model includes establishing a three-column vector matrix consisting of two independent variables, needle roller voltage and belt speed, and one dependent variable, wire waste ratio, according to the wire waste ratio corresponding to different needle roller voltages and different belt speeds of the cigarette machine, and performing nonlinear regression analysis on the three-column vector matrix using a nonlinear fitting function to obtain the wire waste ratio control model through fitting.
5. A winding wire waste ratio adjustment system, comprising a controller and a wire waste ratio measuring device for measuring the actual wire waste ratio, characterized in that: The controller is used to obtain the actual wire waste ratio during the winding process, and determine the wire waste ratio adjustment amount according to the absolute value of the difference between the target wire waste ratio and the actual wire waste ratio; If the adjustment amount of the wire waste ratio is greater than a set threshold, multiple groups of combinations of target needle roller voltage and belt speed corresponding to the target wire waste ratio are determined in the wire waste ratio control model, and one group of target needle roller voltage and belt speed combinations are selected from them; control is performed according to the selected target needle roller voltage and belt speed combination; the wire waste ratio control model is obtained by measuring the corresponding wire waste ratio of the cigarette machine under different needle roller voltages and different belt speeds, and performing nonlinear regression analysis on the two independent variables of needle roller voltage and belt speed and the dependent variable of wire waste ratio.
6. The winding wire waste ratio adjustment system according to claim 5, characterized in that: The selected set of target needle roller voltage and belt speed combinations is a combination that is less different from the current needle roller voltage and belt speed.
7. The winding wire waste ratio adjustment system according to claim 5, characterized in that: The selection process of the target needle roller voltage and belt speed combination is as follows: when the wire waste ratio adjustment amount is greater than the set threshold value and less than the first threshold value, the current belt speed is used as the target belt speed, and the target needle roller voltage corresponding to the target wire waste ratio is calculated in the wire waste ratio control model based on the current belt speed; when the wire waste ratio adjustment amount is greater than the first threshold value, if the belt speed calculated in the wire waste ratio control model based on the current needle roller voltage is within the normal working range of the cigarette machine belt speed, then the target needle roller voltage during control is the current needle roller voltage, and the target belt speed is the calculated belt speed; otherwise, the target belt speed during control is the speed limit within the normal working range of the belt, and the target needle roller voltage is the needle roller voltage calculated in the wire waste ratio model based on the speed limit within the normal working range of the belt.
8. The winding waste wire ratio adjustment system according to any one of claims 5 to 7, characterized in that: The process of determining the wire waste ratio control model includes establishing a three-column vector matrix consisting of two independent variables, needle roller voltage and belt speed, and one dependent variable, wire waste ratio, according to the wire waste ratio corresponding to different needle roller voltages and different belt speeds of the cigarette machine, and performing nonlinear regression analysis on the three-column vector matrix using a nonlinear fitting function to obtain the wire waste ratio control model through fitting.
9. The winding wire waste ratio adjustment system according to claim 5, characterized in that: The waste ratio measuring device includes a calculation module and a weighing module. The weighing module is used to measure the weight of the running tobacco within a set time and the weight of the waste tobacco of the cigarette making machine after being cut by the leveler. The calculation module is used to calculate the actual waste ratio according to the weight of the running tobacco and the weight of the waste tobacco.
10. The winding wire waste ratio adjustment system according to claim 5, characterized in that: The waste wire ratio measuring device includes a calculation module and a laser scanning module. The laser scanning module is used to measure the instantaneous material flow of tobacco on the waste wire collection conveyor belt in real time. The calculation module is used to calculate the waste wire amount within a set time according to the instantaneous material flow, and calculate the actual waste wire ratio according to the waste wire amount.
Citation Information
Patent Citations
Real-time measurement method and real-time regulation and control method for tobacco waste proportion of cigarette making machine
CN116076780A
