Cigarette suction negative pressure regulation and control method, device and equipment for cigarette making machine and medium

Abstract

The embodiment of the invention discloses a cut tobacco suction negative pressure regulation and control method, device and equipment for a cigarette making machine and a medium. The method comprises the following steps: acquiring a current voltage mean value and a reference voltage mean value corresponding to a leveling disc in the cigarette making machine, and a current cut tobacco suction negative pressure opening value corresponding to a cut tobacco suction belt in the cigarette making machine; on the basis of the current voltage mean value and the reference voltage mean value, the current cut tobacco suction negative pressure opening value is regulated and controlled, and a target cut tobacco suction negative pressure opening value corresponding to a cut tobacco suction belt in the cigarette making machine is determined. According to the technical scheme of the embodiment of the invention, self-adaptive control on the cut tobacco suction negative pressure opening value corresponding to the cut tobacco suction belt can be realized according to the periodic voltage mean value change of the leveling disc, so that the cut tobacco suction negative pressure opening value corresponding to the cut tobacco suction belt in a cigarette making machine in the next period can be accurately and conveniently determined; therefore, the stability and homogeneity of cigarette quality are improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of tobacco process technology, and in particular to a method, device, equipment and medium for regulating the negative pressure of tobacco suction of a cigarette making machine. Background Art

[0002] Cigarette weight is one of the most important physical indicators of cigarettes. The tobacco industry has basically established a cigarette weight automatic control mode and system for cigarette making machines using microwave online detection of cigarette weight and PID feedback control.

[0003] At present, the block diagram of a typical weight control system combined with physical information is as follows Figure 1 As shown in the figure, in the weight control loop, the density scanner detects the weight of the cigarettes, feeds back the actual weight signal to the control system, compares it with the given weight, and controls the actuator to adjust the leveling plate to move up and down, thereby controlling the weight of the cigarettes. In the position control loop, the displacement of the actuator is fed back to the control system through the displacement sensor and compared with the position signal set by the leveling plate to further correct the weight of the cigarettes. It can be seen that the current cigarette weight control of the cigarette making machine is determined by the weight control system.

[0004] However, current cigarette making machines only control the weight of cigarettes without performing corresponding control on other components, resulting in a large number of disturbance factors in the weight control process of the cigarette making machine, increasing the weight fluctuation of cigarettes and thus reducing the accuracy of cigarette weight control. Summary of the invention

[0005] The embodiments of the present invention provide a method, device, equipment and medium for regulating the negative pressure of suction wire in a cigarette making machine, so as to realize adaptive control of the negative pressure opening value of suction wire corresponding to the suction wire according to the periodic voltage mean change of a smoothing disk, thereby accurately and conveniently determining the negative pressure opening value of suction wire corresponding to the suction wire in the cigarette making machine in the next cycle, so as to improve the stability and homogeneity of the quality of cigarettes.

[0006] In a first aspect, an embodiment of the present invention provides a method for regulating negative pressure of cigarette shreds suctioned by a cigarette making machine, comprising:

[0007] Obtain the current voltage average and reference voltage average corresponding to the leveling plate in the cigarette making machine, and the current suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine;

[0008] Based on the current voltage average and the reference voltage average, the current suction wire negative pressure opening value is regulated to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0009] Optionally, the method also includes: the current voltage average is the voltage average corresponding to the position of the flattening disk in the current wire suction negative pressure adjustment cycle; the current wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the current wire suction negative pressure adjustment cycle; the reference voltage average is the voltage average corresponding to the position of the flattening disk in the previous wire suction negative pressure adjustment cycle; the target wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the next wire suction negative pressure adjustment cycle.

[0010] Optionally, the method also includes: performing a difference calculation based on the current voltage average and the reference voltage average to determine the voltage difference; based on the voltage difference and a preset control dead zone, regulating the current suction wire negative pressure opening value to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0011] Optionally, the method also includes: if the voltage difference is within the preset control dead zone, the current suction wire negative pressure opening value is kept unchanged, and the current suction wire negative pressure opening value is determined as the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine; if the voltage difference is outside the preset control dead zone, the current suction wire negative pressure opening value is adjusted to obtain an adjustment result, and the adjustment result is determined as the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine.

[0012] Optionally, the method also includes: if the voltage difference is outside the preset control dead zone and the voltage difference is a positive value, then based on the preset increase proportional coefficient and the current suction negative pressure opening value, the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine is determined; if the voltage difference is outside the preset control dead zone and the voltage difference is a negative value, then based on the preset decrease proportional coefficient and the current suction negative pressure opening value, the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine is determined.

[0013] Optionally, the method further comprises: the preset increase proportional coefficient and the preset decrease proportional coefficient are linear transformation coefficients between a pre-established target wire suction negative pressure opening value and a current wire suction negative pressure opening value.

[0014] In a second aspect, an embodiment of the present invention further provides a device for regulating negative pressure of cigarette shreds suctioned by a cigarette making machine, the device comprising:

[0015] A data acquisition module is used to obtain the current voltage average and reference voltage average corresponding to the leveling plate in the cigarette making machine, and the current suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine;

[0016] The target suction negative pressure opening value determination module is used to adjust the current suction negative pressure opening value based on the current voltage average and the reference voltage average, and determine the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0017] In a third aspect, an embodiment of the present invention further provides an electronic device, the electronic device comprising:

[0018] one or more processors;

[0019] A memory for storing one or more programs;

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine as provided in any embodiment of the present invention.

[0021] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for regulating negative pressure of suction of a cigarette making machine as provided in any embodiment of the present invention.

[0022] In a fifth aspect, an embodiment of the present invention provides a computer program product, including a computer program, which, when executed by a processor, implements the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine as provided in any embodiment of the present invention.

[0023] The technical solution of the embodiment of the present invention is to obtain the current voltage average and the reference voltage average corresponding to the flattening disk in the cigarette making machine, and the current suction negative pressure opening value corresponding to the suction belt in the cigarette making machine; based on the current voltage average and the reference voltage average, the current suction negative pressure opening value is regulated to determine the target suction negative pressure opening value corresponding to the suction belt in the cigarette making machine, thereby realizing adaptive control of the suction negative pressure opening value corresponding to the suction belt according to the periodic voltage average change of the flattening disk, and then accurately and conveniently determine the suction negative pressure opening value corresponding to the suction belt in the cigarette making machine in the next cycle, so as to improve the stability and homogeneity of the cigarette quality.

[0024] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a block diagram of a typical existing weight control system combined with physical information;

[0027] Figure 2This is a flow chart of a method for controlling the negative pressure of cigarette-making machine suction provided by the first embodiment of the present invention;

[0028] Figure 3 This is a control loop framework diagram provided by Embodiment 2 of the present invention;

[0029] Figure 4 It is a structural schematic diagram of a cigarette-making machine suction negative pressure control device provided in Embodiment 3 of the present invention;

[0030] Figure 5 It is a structural schematic diagram of an electronic device for implementing the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Embodiment 1

[0034] Figure 2 A flowchart of a method for controlling the suction negative pressure of a cigarette making machine is provided for the first embodiment of the present invention. This embodiment is applicable to the case where the suction negative pressure and the position of the leveling plate in the cigarette making machine are controlled in a linked manner. The method can be performed by a device for controlling the suction negative pressure of a cigarette making machine. The device can be implemented in the form of hardware and / or software. The device can be configured in an electronic device. Figure 2 As shown, the method includes:

[0035] S210, obtaining a current voltage average value and a reference voltage average value corresponding to a flattening plate in the cigarette making machine, and a current suction wire negative pressure opening value corresponding to a suction wire in the cigarette making machine.

[0036] Among them, the current voltage average is the voltage average corresponding to the position of the flattening disk in the current suction wire negative pressure adjustment cycle. The current suction wire negative pressure opening value is the suction wire negative pressure opening value corresponding to the suction wire ribbon in the current suction wire negative pressure adjustment cycle. The reference voltage average is the voltage average corresponding to the position of the flattening disk in the previous suction wire negative pressure adjustment cycle. A cigarette making machine may refer to a machine that uses cigarette paper to roll tobacco into cigarettes. The flattening disk can be used to control the amount of tobacco adsorbed on the suction wire ribbon. There is a corresponding voltage value at the position of the flattening disk. Changes in the position of the flattening disk will cause the voltage value to change accordingly.

[0037] Specifically, the current position information corresponding to each position change of the leveling disk in the current suction wire negative pressure adjustment cycle is obtained, so as to generate the current voltage value corresponding to each current position information based on each current position information and the position sensor, and perform mean processing on each current voltage value to determine the current voltage mean value corresponding to the leveling disk in the cigarette making machine. In the embodiment of the present invention, the corresponding voltage mean value will be calculated for each suction wire negative pressure adjustment cycle, so the reference voltage mean value can be directly obtained from the historical calculation results. The current suction wire negative pressure opening value can be obtained through the opening sensor, and can also be determined based on the target suction wire negative pressure opening value corresponding to the suction wire in the previous suction wire negative pressure adjustment cycle.

[0038] S220: Based on the current voltage average and the reference voltage average, the current suction wire negative pressure opening value is regulated to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0039] The target suction wire negative pressure opening value is the suction wire negative pressure opening value corresponding to the suction wire in the next suction wire negative pressure adjustment cycle.

[0040] Specifically, the voltage difference between the current voltage mean and the reference voltage mean is determined, and based on the preset opening control method corresponding to the voltage difference, the current suction wire negative pressure opening value is controlled, thereby determining the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine. Different preset opening control methods have their own corresponding voltage difference ranges. When the voltage difference falls into a voltage difference range, the corresponding preset opening control method can be determined.

[0041] On the basis of the above technical scheme, "regulating the current suction negative pressure opening value based on the current voltage average and the reference voltage average to determine the target suction negative pressure opening value corresponding to the suction ribbon in the cigarette making machine" may include: calculating the difference based on the current voltage average and the reference voltage average to determine the voltage difference; regulating the current suction negative pressure opening value based on the voltage difference and the preset control dead zone to determine the target suction negative pressure opening value corresponding to the suction ribbon in the cigarette making machine.

[0042] In cigarette making machines, the control dead zone can refer to the input signal range in which the output of the control system is zero. Within this range, no matter how the input signal changes, the output is always zero, and the input cannot affect the output, so it is called the "dead zone". The control dead zone can be used to prevent the control system from being invalid or erroneous under certain conditions. The preset control dead zone can be obtained by pre-testing for different specifications of tobacco.

[0043] Specifically, the voltage difference between the current voltage mean and the reference voltage mean is obtained by subtracting the current voltage mean from the reference voltage mean. Based on the inclusive relationship between the voltage difference and the preset control dead zone, the current suction wire negative pressure opening value is regulated, so that the regulation result is determined as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0044] On the basis of the above technical scheme, "based on the voltage difference and the preset control dead zone, the current suction wire negative pressure opening value is adjusted to determine the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine" may include: if the voltage difference is within the preset control dead zone, the current suction wire negative pressure opening value is kept unchanged, and the current suction wire negative pressure opening value is determined as the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine; if the voltage difference is outside the preset control dead zone, the current suction wire negative pressure opening value is adjusted to obtain an adjustment result, and the adjustment result is determined as the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine.

[0045] The voltage difference being within the preset control dead zone may mean that the voltage difference is less than or equal to the preset control dead zone, and the voltage difference being outside the preset control dead zone may mean that the voltage difference is greater than the preset control dead zone.

[0046] Specifically, take the preset control dead zone of 0.5V as an example. If the voltage difference of 0.3V is within the preset control dead zone of 0.5V, the current suction wire negative pressure opening value is kept unchanged, and the current suction wire negative pressure opening value is determined as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine. If the voltage difference is outside the preset control dead zone, it is necessary to adjust the current suction wire negative pressure opening value in a targeted manner for the situation that exceeds the upper or lower limit of the preset control dead zone to obtain an adjustment result, and determine the adjustment result as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0047] On the basis of the above technical scheme, "if the voltage difference is outside the preset control dead zone, the current suction wire negative pressure opening value is adjusted to obtain an adjustment result, and the adjustment result is determined as the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine" may include: if the voltage difference is outside the preset control dead zone, and the voltage difference is a positive value, then based on the preset increase proportional coefficient and the current suction wire negative pressure opening value, the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine is determined; if the voltage difference is outside the preset control dead zone, and the voltage difference is a negative value, then based on the preset decrease proportional coefficient and the current suction wire negative pressure opening value, the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine is determined.

[0048] Among them, the preset increase proportional coefficient and the preset decrease proportional coefficient are linear transformation coefficients between the pre-established target suction negative pressure opening value and the current suction negative pressure opening value. For example, the preset increase proportional coefficient and the preset decrease proportional coefficient can be pre-set for different specifications of tobacco. If the current product specification of the ZJ17 cigarette making machine is a soft long mouth, the preset increase proportional coefficient is 1.05, and the preset decrease proportional coefficient is 0.95. For another example, the preset increase proportional coefficient and the preset decrease proportional coefficient can also be determined based on the linear conversion relationship between the voltage mean corresponding to the position of the leveling disk collected within a preset period and the suction negative pressure opening mean.

[0049] Specifically, take each suction wire negative pressure adjustment cycle as 5 minutes, and the current suction wire negative pressure opening value as 82Bar as an example. If the voltage difference of 0.63V is outside the preset control dead zone of 0.5V, and the voltage difference is a positive value, then based on the preset increase proportional coefficient 1.05 and the current suction wire negative pressure opening value of 82Bar, multiply (1.05*82Bar) to determine the target suction wire negative pressure opening value of 86.1Bar corresponding to the suction wire in the cigarette making machine. Enter the next adjustment cycle after 5 minutes. If the voltage difference of -0.58V is outside the preset control dead zone of 0.5V, and the voltage difference is a negative value, then based on the preset reduction proportional coefficient 0.95 and the current suction wire negative pressure opening value of 86.1Bar, multiply (0.95*86.1Bar) to determine the target suction wire negative pressure opening value of 81.80Bar corresponding to the suction wire in the cigarette making machine.

[0050] The technical solution of the embodiment of the present invention obtains the current voltage average and the reference voltage average corresponding to the flattening disk in the cigarette making machine, and the current suction negative pressure opening value corresponding to the suction belt in the cigarette making machine; based on the current voltage average and the reference voltage average, the current suction negative pressure opening value is regulated to determine the target suction negative pressure opening value corresponding to the suction belt in the cigarette making machine, thereby realizing adaptive control of the suction negative pressure opening value corresponding to the suction belt according to the periodic voltage average change of the flattening disk, and then accurately and conveniently determining the suction negative pressure opening value corresponding to the suction belt in the cigarette making machine in the next cycle, so as to improve the stability and homogeneity of the cigarette quality.

[0051] Embodiment 2

[0052] The second embodiment of the present invention provides a technical solution for controlling the weight of cigarettes based on the collaboration among a weight control circuit, a position control circuit and a suction negative pressure control circuit. Figure 3 A control loop framework diagram provided for the second embodiment of the present invention.

[0053] In the embodiment of the present invention, the weight signal of the continuous tobacco rod segment is obtained by the microwave detector, and the weight of the continuous tobacco rod segment is accurately divided into the weight data of a single cigarette based on the shaft encoder of the cutter head of the tobacco rod, and the actual average weight of the batch of cigarettes is calculated in fixed groups. The difference between the actual value and the rated value is calculated by the weight regulator, and the rise and fall of the actuator (flattening plate) is controlled by the position regulator to achieve the goal of weight control. The control cycle is at the level of tens of milliseconds, that is, the weight control of 5,000 to 20,000 cigarettes is completed per minute. The functions of the weight control loop and the position control loop include: 1) online continuous real-time control of the average weight of cigarettes; 2) rejecting corresponding unqualified products, such as light and heavy cigarettes, local density exceeding the limit cigarettes, etc.; 3) providing process statistical indicators such as weight distribution, standard deviation, and rejection quantity of the production process.

[0054] Among them, by adding a suction negative pressure control loop to the weight control loop and the position control loop, the suction negative pressure opening value can be adaptively adjusted using the voltage average corresponding to the position of the leveling disk, thereby realizing the joint regulation of the suction negative pressure opening value and the leveling disk position in a typical weight control system, thereby reducing the disturbance effect of the suction negative pressure and improving the accuracy of cigarette weight control.

[0055] It should be noted that through research, it was found that the tobacco flow is basically cylindrical, so the formula for calculating the tobacco weight of a single cigarette is m=ρ×v (m is the weight of a single cigarette, ρ is the tobacco density, and v is the volume of a single cigarette). The tobacco density ρ of a single cigarette is actually determined by the size of the negative pressure on the suction belt and the position of the flattening plate. The greater the negative pressure, the tighter the tobacco on the suction belt, and the greater the tobacco density ρ. Therefore, the suction negative pressure is also a key factor affecting the weight control of cigarettes, and the uniformity of tobacco filling is jointly determined by the suction negative pressure and the cigarette weight control system.

[0056] Specifically, the voltage value change corresponding to the position of the leveling disk is recorded during the production process, and the voltage mean corresponding to the position of the leveling disk in each cycle is calculated according to the set adjustment cycle. The voltage difference between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle is calculated, and the following targeted adjustments are made according to the voltage difference. If the voltage difference between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle is within the preset control dead zone, the suction wire negative pressure opening remains unchanged, that is, the current suction wire negative pressure opening value is used as the target suction wire negative pressure opening value. If the difference voltage between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle increases, and is greater than the control dead zone, the suction wire negative pressure opening value is correspondingly increased by using the preset increase proportional coefficient, so that the negative pressure in the suction wire suction area increases. If the difference voltage between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle decreases, and is greater than the control dead zone, the suction wire negative pressure opening value is correspondingly reduced by using the preset reduction proportional coefficient, so that the negative pressure in the suction wire suction area decreases. After a set cycle is completed, it enters the next cycle and repeats this cycle.

[0057] For example, during the production process, the voltage value change corresponding to the position of the leveling disk is recorded, and the voltage mean corresponding to the position of the leveling disk in each cycle is calculated according to the set adjustment cycle (5 minutes / time). If the voltage difference between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle is 0.3V, within the control dead zone, the vacuum opening of the wire suction is kept unchanged at 82Bar. If the voltage difference between the voltage mean corresponding to the position of the leveling disk in the current cycle and the previous cycle is 0.63V, which is greater than the control dead zone of 0.5V, the proportional coefficient k is selected as the preset increase proportional coefficient (1.05), and the target vacuum opening value y=1.05*82Bar=86.1Bar is determined, so that the negative pressure in the wire suction area increases. After 5 minutes, if the voltage difference between the voltage averages corresponding to the positions of the leveling disks in the current cycle and the previous cycle is -0.58 V, which is greater than the control dead zone of 0.5 V, the proportional coefficient k is selected as the preset reduction proportional coefficient (0.95), and the target wire suction negative pressure opening value y=0.95*86.1Bar≈81.80Bar is determined, so that the negative pressure in the wire suction area is reduced.

[0058] Illustratively, the embodiments of the present invention also provide a comparison of the cigarette production results using the suction shred negative pressure regulation method and the cigarette production results not using the suction shred negative pressure regulation method, as shown in Table 1.

[0059] Table 1 Comparison example of cigarette production results

[0060]

[0061]

[0062] Among them, the comparison models are two ZJ17 models. The product specification is a soft long mouth. The control dead zone is 0.5V. The comparison method is that the two machines use the same batch of tobacco, produce uniform specifications, and track the standard deviation of the draw resistance and the number of rejected cigarettes in 10 production shifts. Referring to Table 1, according to the results, it can be seen that after using the negative pressure control method for the suction of cigarette making machines of the present invention, the standard deviation of the draw resistance of cigarettes and the number of rejected cigarettes are significantly reduced, which effectively optimizes the uniformity of the filling capacity of cigarettes.

[0063] Through the technical solution of the embodiment of the present invention, adaptive control of the suction negative pressure opening value is achieved according to the change of the voltage mean value corresponding to the position of the flattening disk, which can effectively optimize the tobacco filling capacity of cigarettes in the production process of the cigarette making machine, and accurately control the suction negative pressure when there are many disturbance factors in the weight control of the cigarette making machine to ensure that the weight control actuator can achieve smaller fluctuations around the target range, so as to improve the stability and homogeneity of the cigarette quality.

[0064] It should be noted that when the suction negative pressure control method is not used, the flattening plate in the cigarette making machine controls the weight of tobacco only by adjusting the position, which will cause the flattening plate position to change from small fluctuations to large fluctuations, such as from 1 mm up and down to 3 mm up and down, and the fluctuation range will gradually approach the upper and lower limits of the position fluctuation. When the suction negative pressure control method is used, when the position of the flattening plate in the cigarette making machine has small fluctuations, such as 1 mm up and down, the suction negative pressure is periodically used in conjunction with the flattening plate to control the weight of tobacco, so that the flattening plate position does not need to fluctuate greatly to achieve precise control of tobacco weight, and ensure that the weight control actuator can achieve small fluctuations around the target range to improve the stability and homogeneity of cigarette quality.

[0065] The following is an embodiment of the device for regulating negative pressure in cigarette machine suction provided by an embodiment of the present invention. The device and the methods for regulating negative pressure in cigarette machine suction in the above-mentioned embodiments belong to the same inventive concept. For details not fully described in the embodiment of the device for regulating negative pressure in cigarette machine suction, reference can be made to the embodiments of the methods for regulating negative pressure in cigarette machine suction.

[0066] Embodiment 3

[0067] Figure 4 This is a schematic diagram of the structure of a negative pressure control device for cigarette making machine provided in the third embodiment of the present invention. Figure 4 As shown, the device includes: a data acquisition module 410 and a target suction wire negative pressure opening value determination module 420.

[0068] Among them, the data acquisition module 410 is used to obtain the current voltage average and the reference voltage average corresponding to the flattening plate in the cigarette making machine, as well as the current suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine; the target suction wire negative pressure opening value determination module 420 is used to adjust the current suction wire negative pressure opening value based on the current voltage average and the reference voltage average, and determine the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine.

[0069] The technical solution of the embodiment of the present invention is to obtain the current voltage average and the reference voltage average corresponding to the flattening disk in the cigarette making machine, and the current suction negative pressure opening value corresponding to the suction belt in the cigarette making machine; based on the current voltage average and the reference voltage average, the current suction negative pressure opening value is regulated to determine the target suction negative pressure opening value corresponding to the suction belt in the cigarette making machine, thereby realizing adaptive control of the suction negative pressure opening value corresponding to the suction belt according to the periodic voltage average change of the flattening disk, and then accurately and conveniently determine the suction negative pressure opening value corresponding to the suction belt in the cigarette making machine in the next cycle, so as to improve the stability and homogeneity of the cigarette quality.

[0070] Based on the above technical scheme, the current voltage average is the voltage average corresponding to the position of the flattening disk in the current wire suction negative pressure adjustment cycle; the current wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the current wire suction negative pressure adjustment cycle; the reference voltage average is the voltage average corresponding to the position of the flattening disk in the previous wire suction negative pressure adjustment cycle; the target wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the next wire suction negative pressure adjustment cycle.

[0071] Based on the above technical solution, the target suction wire negative pressure opening value determination module 420 may include:

[0072] A voltage difference determination submodule is used to perform a difference calculation based on a current voltage mean value and a reference voltage mean value to determine a voltage difference value;

[0073] The target suction negative pressure opening value determination submodule is used to adjust the current suction negative pressure opening value based on the voltage difference and the preset control dead zone, and determine the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0074] On the basis of the above technical solution, the target suction wire negative pressure opening value determination submodule may include:

[0075] A first target suction wire negative pressure opening value determination unit is used to keep the current suction wire negative pressure opening value unchanged if the voltage difference is within a preset control dead zone, and determine the current suction wire negative pressure opening value as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine;

[0076] The second target suction negative pressure opening value determination unit is used to adjust the current suction negative pressure opening value to obtain an adjustment result if the voltage difference is outside the preset control dead zone, and determine the adjustment result as the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine.

[0077] On the basis of the above technical scheme, the second target suction wire negative pressure opening value determination unit is specifically used for: if the voltage difference is outside the preset control dead zone and the voltage difference is a positive value, then based on the preset increase proportional coefficient and the current suction wire negative pressure opening value, the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine is determined; if the voltage difference is outside the preset control dead zone and the voltage difference is a negative value, then based on the preset decrease proportional coefficient and the current suction wire negative pressure opening value, the target suction wire negative pressure opening value corresponding to the suction wire belt in the cigarette making machine is determined.

[0078] On the basis of the above technical solution, the preset increase proportional coefficient and the preset decrease proportional coefficient are linear transformation coefficients between the pre-established target wire suction negative pressure opening value and the current wire suction negative pressure opening value.

[0079] The cigarette making machine suction negative pressure control device provided in the embodiment of the present invention can execute the cigarette making machine suction negative pressure control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the cigarette making machine suction negative pressure control method.

[0080] It is worth noting that in the above-mentioned embodiment of the negative pressure control of the cigarette machine suction, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0081] Embodiment 4

[0082] Figure 5 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0083] like Figure 5As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0084] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0085] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for regulating the negative pressure of a cigarette machine suction wire.

[0086] In some embodiments, the method for regulating the negative pressure of the cigarette shreds suctioned by the cigarette making machine may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for regulating the negative pressure of the cigarette shreds suctioned by the cigarette making machine described above may be executed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for regulating the negative pressure of the cigarette shreds suctioned by the cigarette making machine in any other appropriate manner (e.g., by means of firmware).

[0087] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0088] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0089] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0090] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0091] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0092] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0093] An embodiment of the present invention further provides a computer program product, including a computer program, which, when executed by a processor, implements the method for regulating negative pressure of cigarette shreds suctioned by a cigarette making machine as provided in any embodiment of the present application.

[0094] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention. The programming language includes object-oriented programming languages, such as Java, Smalltalk, C++, and also includes conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet). The program product and the method for regulating the negative pressure of the cigarette machine suction wire disclosed in each embodiment of the present application belong to the same inventive concept, so it will not be repeated here.

[0095] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0096] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for regulating negative pressure of cigarette making machine suction, characterized in that: include: Obtain the current voltage average and reference voltage average corresponding to the leveling plate in the cigarette making machine, and the current suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine; Based on the current voltage average and the reference voltage average, the current suction wire negative pressure opening value is regulated to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

2. The method according to claim 1, characterized in that The current voltage average is the voltage average corresponding to the position of the flattening disk in the current wire suction negative pressure adjustment cycle; the current wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the current wire suction negative pressure adjustment cycle; the reference voltage average is the voltage average corresponding to the position of the flattening disk in the previous wire suction negative pressure adjustment cycle; the target wire suction negative pressure opening value is the wire suction negative pressure opening value corresponding to the suction ribbon in the next wire suction negative pressure adjustment cycle.

3. The method according to claim 1, characterized in that The current suction wire negative pressure opening value is regulated based on the current voltage average value and the reference voltage average value to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine, including: Performing a difference calculation based on the current voltage average and the reference voltage average to determine a voltage difference; Based on the voltage difference and the preset control dead zone, the current suction wire negative pressure opening value is regulated to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

4. The method according to claim 3, characterized in that The current suction wire negative pressure opening value is regulated based on the voltage difference and the preset control dead zone to determine the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine, including: If the voltage difference is within the preset control dead zone, the current suction wire negative pressure opening value is kept unchanged, and the current suction wire negative pressure opening value is determined as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine; If the voltage difference is outside the preset control dead zone, the current suction wire negative pressure opening value is adjusted to obtain an adjustment result, and the adjustment result is determined as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine.

5. The method according to claim 4, characterized in that If the voltage difference is outside the preset control dead zone, the current suction wire negative pressure opening value is adjusted to obtain an adjustment result, and the adjustment result is determined as the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine, including: If the voltage difference is outside the preset control dead zone and the voltage difference is a positive value, then based on the preset increase proportionality coefficient and the current suction wire negative pressure opening value, the target suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine is determined; If the voltage difference is outside the preset control dead zone and the voltage difference is negative, the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine is determined based on the preset reduction proportional coefficient and the current suction negative pressure opening value.

6. The method according to claim 5, characterized in that The preset increase proportional coefficient and the preset decrease proportional coefficient are linear transformation coefficients between a pre-established target wire suction negative pressure opening value and a current wire suction negative pressure opening value.

7. A device for regulating negative pressure of cigarette-making machine suction, characterized in that: The device comprises: A data acquisition module is used to obtain the current voltage average and reference voltage average corresponding to the leveling plate in the cigarette making machine, and the current suction wire negative pressure opening value corresponding to the suction wire in the cigarette making machine; The target suction negative pressure opening value determination module is used to adjust the current suction negative pressure opening value based on the current voltage average and the reference voltage average, and determine the target suction negative pressure opening value corresponding to the suction wire in the cigarette making machine.

8. An electronic device, characterized in that: The electronic device comprises: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine as described in any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by the processor, the computer program implements the method for controlling the negative pressure of cigarette shreds suctioned by a cigarette making machine as described in any one of claims 1 to 6.

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