Feeder elevator belt speed control method, device, equipment, medium and program

Abstract

The invention relates to the technical field of tobacco production, and provides a feeding machine lifting belt speed control method, device and equipment, a medium and a program. The speed control method for the elevator belt of the feeding machine comprises the steps that the low speed and the high speed of the elevator belt are determined according to the obtained operation state of the elevator belt; the light transmission and shielding performance of the photoelectric tube at different material level heights are judged; if the photoelectric tube at the low material level is light-transmitting and the photoelectric tube at the low material level is still light-transmitting after a set time, the lifting belt runs at a high speed, so that the height of the tobacco shred material in the quantitative tube is maintained between the photoelectric tube at the middle material level and the photoelectric tube at the low material level; and if the photoelectric tube at the middle material level is shielded and still shielded after a set time, the lifting belt operates at a low speed, so that the height of the tobacco shred material in the quantitative tube is maintained between the photoelectric tube at the middle material level and the photoelectric tube at the low material level. The working efficiency of the feeding machine can be improved, and the start-stop frequency and the high-low speed switching frequency of the lifting belt are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco production, and in particular to a method, device, equipment, medium and program for controlling the speed of a lifting belt of a feeder. Background Art

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

[0003] In tobacco production enterprises, feeders can achieve material balance and temporary storage of upstream and downstream equipment, adjust material delivery speed in real time according to production requirements, ensure stable material supply during the production process, and improve production continuity and stability.

[0004] The warehouse feeder is generally composed of a material distribution device, a box, a bottom belt, a lifting belt, a material feeding roller, a drive system and a material level detection device. The warehouse feeder is generally used in conjunction with a feeding and material leveling device in front of an electronic belt scale. Currently, the following two methods are commonly used:

[0005] (1) The lifting belt follows the belt scale frequency;

[0006] (2) A photoelectric tube is installed at a certain height above the belt scale. When the photoelectric tube is detected to be blocked, it will operate at a certain frequency;

[0007] However, due to the different density of incoming materials, control method (1) may cause the follow-up coefficient to be set improperly, which may easily cause material blockage or material breakage. Control method (2) will cause the lifting belt to start and stop frequently or switch between high and low speeds, which may easily cause material blockage and shorten the service life of the lifting belt chain. Summary of the invention

[0008] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a method, device, equipment, medium and program for controlling the speed of the lifting belt of a feeder. The present invention reasonably controls the frequency and speed of the lifting belt of a feeder in a cigarette production enterprise through a low-speed constant and a high-speed constant, and the operating frequency of an adaptive belt scale, thereby stably controlling the flow rate of tobacco material, preventing the occurrence of material breakage and blockage, and improving the working efficiency of the feeder. At the same time, it reduces the number of starts and stops of the lifting belt and the number of high and low speed switching, thereby extending the service life of the lifting belt.

[0009] A first aspect of the present invention provides a method for controlling the speed of a feeder lifting belt, comprising:

[0010] According to the acquired running state of the lifting belt, the low speed and high speed of the lifting belt are determined;

[0011] Determine the light transmittance and shielding properties of the photoelectric tube at different material level heights;

[0012] If the photoelectric tube of the low material level is transparent and the photoelectric tube of the low material level is still transparent after the set time, the lifting belt will run at a high speed to keep the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level;

[0013] If the photoelectric tube of the middle material level is blocked and is still blocked after the set time, the lifting belt will run at a low speed to keep the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level.

[0014] In some possible implementations, the method of determining the low speed and the high speed of the lifting belt according to the acquired running state of the lifting belt includes:

[0015] If the lifting belt is in normal operation, determine whether the speed coefficient is lost;

[0016] If the low speed constant is equal to zero, the theoretical low speed value is assigned to the low speed constant; if the height constant is equal to zero, the theoretical high speed value is assigned to the high speed constant; if both the low speed constant and the high speed constant are not zero, the low speed constant and the height coefficient remain unchanged;

[0017] The low speed of the lifting belt is calculated based on the product of the belt scale speed and the low speed constant; the high speed of the lifting belt is calculated based on the product of the belt scale speed and the high speed constant.

[0018] In some possible implementations, the method further comprises determining a low speed and a high speed of the lifting belt according to the acquired running state of the lifting belt:

[0019] If the lifting belt is in the material head stage, the low speed of the lifting belt runs according to the theoretical low speed, and the high speed of the lifting belt runs according to the theoretical high speed;

[0020] The material head stage state is the stage when there is no tobacco material on the belt scale.

[0021] In some possible implementations, the method further comprises determining a low speed and a high speed of the lifting belt according to the acquired running state of the lifting belt:

[0022] If the lifting belt is in manual operation, the low speed of the lifting belt runs according to the theoretical low speed, and the high speed of the lifting belt runs according to the theoretical high speed.

[0023] In some possible implementations, the low speed constant and the high speed constant need to be set based on empirical values ​​and field test results.

[0024] A second aspect of the present invention provides a feeder lifting belt speed control device, comprising:

[0025] A frequency determination module, configured to: determine a low speed and a high speed of the lifting belt according to the acquired running state of the lifting belt;

[0026] A judgment module is configured to: judge the light transmittance and shielding properties of the photoelectric tube at different material level heights;

[0027] The first control module is configured to: if the photoelectric tube of the low material level is light-transmissive and the photoelectric tube of the low material level is still light-transmissive after a set time, the lifting belt runs at a high speed to maintain the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level;

[0028] The second control module is configured as follows: if the photoelectric tube of the middle material level is blocked and is still blocked after a set time, the lifting belt runs at a low speed to maintain the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level.

[0029] The third aspect of the present invention provides a feeder lifting belt speed control device, comprising: a feeding bin, the feeding bin is installed on the bottom belt of the feeding bin, the bottom belt of the feeding bin is driven by the feeding bin motor, a material distribution device is installed above the feeding bin, the discharge end of the feeding bin is connected to the lifting belt, a material picking roller is installed in the middle position of the lifting belt, the material picking roller is driven by the material picking roller motor, a feeding lifting belt motor is installed at the top of the lifting belt, and a belt scale is provided below the upper end of the lifting belt, a first photoelectric tube at a high material level, a second photoelectric tube at a middle material level, and a third photoelectric tube at a low material level are arranged above the belt scale, the belt scale is driven by an electronic belt scale motor, the feeding bin motor drive, the material picking roller motor drive, the feeding lifting belt motor, the first photoelectric tube, the second photoelectric tube, the third photoelectric tube and the electronic belt scale motor are all connected to a PLC system and controlled by the PLC system, and the PLC system executes the steps in the feeder lifting belt speed control method described in the first aspect.

[0030] A fourth aspect of the present invention provides a computer device, the device comprising:

[0031] a processor adapted to execute a computer program;

[0032] A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, the steps in the feeder lifting belt speed control method as described in the first aspect above are implemented.

[0033] A fifth aspect of the present invention provides a computer-readable storage medium storing a computer program, wherein the computer program is suitable for being loaded by a processor and executing the steps in the feeder lifting belt speed control method as described in the first aspect above.

[0034] A sixth aspect of the present invention provides a computer program product or a computer program.

[0035] The present invention provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the steps in the feeder lifting belt speed control method as described in the first aspect above.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention discloses a method, device, equipment, medium and program for controlling the speed of a lifting belt of a feeder. The method realizes speed control of the lifting belt of a feeder by means of a low-speed constant, a high-speed constant and controlling the running speed of an electronic belt scale, and limits the high-speed and low-speed setting values ​​of the lifting belt according to the operation of the electronic belt scale and the flow setting of the electronic belt scale, thereby solving the problem that the change of the density of tobacco material affects the inappropriate tracking coefficient, and improving the working efficiency of the feeder.

[0038] The present invention can effectively prevent the problem of untimely adjustment of the lifting belt frequency due to abnormal photoelectric tube detection, reduce the risk of material blockage or material shortage in the metering tube due to abnormal state of the photoelectric signal of the metering tube, ensure that the feeding speed of the feeder is reasonably matched with the operating speed of the electronic belt scale, realize the continuous supply of tobacco material transportation on the production line, greatly reduce the number of start-stop times and high-speed and low-speed switching times of the feeder equipment, and thus extend the service life of the lifting belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0040] Figure 1 1 is a structural diagram of a storage feeder according to an embodiment of the present invention;

[0041] Figure 2 is a flow chart of a method for controlling the speed of a lifting belt of a feeder shown in an embodiment of the present invention;

[0042] Figure 3 1 is a flow chart of a method for adjusting the speed of a lifting belt of a feeder shown in an embodiment of the present invention;

[0043] Figure 4 1 is a schematic diagram showing a PLC controlling the speed of a lifting belt according to an embodiment of the present invention;

[0044] Figure 51 is a structural diagram of a feeder lifting belt speed control device shown in an embodiment of the present invention;

[0045] Figure 6 is a structural diagram of a computer device shown in an embodiment of the present invention;

[0046] Among them, A, material distribution device, B, feeding bin, C, feeding bottom belt, D, material feeding roller, E, lifting belt, F, feeding lifting belt motor, G1, the first photoelectric tube at high material level, G2, the second photoelectric tube at middle material level, G3, the third photoelectric tube at low material level, H, belt scale, I, electronic belt scale motor. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Figure 1 : is a structural diagram of the warehouse feeder shown in this embodiment, such as Figure 1 As shown, the storage feeder includes: a material distribution device A, a feeding bin B, a feeding bottom belt C, a feeding roller D, a lifting belt E, a feeding lifting belt motor F, a first photoelectric tube G1 at a high material level, a second photoelectric tube G2 at a middle material level, a third photoelectric tube G3 at a low material level, a belt scale H and an electronic belt scale motor I. The operation of the storage feeder is controlled by a PLC system, and the PLC system can execute a method for controlling the speed of the feeding machine lifting belt. The specific steps of the method for controlling the speed of the feeding machine lifting belt are described in detail below in conjunction with the accompanying drawings:

[0051] See also Figure 2 The flow chart of the feeder lifting belt speed control method shown in this embodiment, and refer to Figure 3 The flow chart of the feeder lifting belt speed adjustment method shown in this embodiment, wherein the feeder lifting belt speed control method includes:

[0052] According to the acquired running state of the lifting belt, the low speed and high speed of the lifting belt are determined;

[0053] Among them, the operating status of the lifting belt includes: normal operating status, material head stage status and manual status. The material head stage status refers to when there is no tobacco material on the belt scale, and the manual status means that the equipment can be operated through the operation screen during maintenance.

[0054] This embodiment provides a method for setting a low speed and a high speed of a lifting belt, comprising:

[0055] First, you need to set the low speed constant and high speed constant based on experience and field test results.

[0056] When the lifting belt is in normal operation, determine whether the speed coefficient is lost; if the low-speed constant is equal to zero, assign the theoretical low-speed value to the low-speed constant; if the height constant is equal to zero, assign the theoretical high-speed value to the high-speed constant; if both the low-speed constant and the high-speed constant are not zero, the low-speed constant and the height coefficient remain unchanged; calculate the low-speed speed of the lifting belt based on the product of the belt scale speed and the low-speed constant; calculate the high-speed speed of the lifting belt based on the product of the belt scale frequency and the high-speed constant.

[0057] That is to say, before setting the low speed and high speed, make sure that the low speed constant and high speed constant are correct and not lost. If lost, re-assign the low speed constant and high speed constant:

[0058] {Low speed constant = theoretical low speed value, if (low speed constant = 0)}

[0059] {High speed constant = theoretical high speed value, if (high speed constant = 0)}

[0060] When the feeder lifting belt is in normal operation during production, the actual running speed of the lifting belt is determined by the belt scale speed and the speed coefficient, that is:

[0061] Actual low speed = belt scale speed × low speed constant Actual high speed = belt scale speed × high speed constant

[0062] like Figure 4 As shown, in the PLC, the speed of the lifting belt is determined by the middle material level shading condition, the low material level shading condition, the belt scale speed and the speed coefficient, that is:

[0063] When the material level in G2 is blocked, the delay output is T2, at this time M=0, Fhz=V×K1;

[0064] When G3 is light-shielded due to low material level, the output is delayed to T3, at which time M=1, Fhz=V×K2;

[0065] Among them, K1 represents the low speed constant, K2 represents the high speed constant, V represents the belt scale speed, and Fhz represents the lifting belt speed setting value.

[0066] In the embodiment, both the low speed constant and the high speed constant can be customized. If the low speed constant and the high speed constant of the feeder lifting belt are not lost, taking the leaf silk as an example, the low speed constant of the feeder lifting belt can be 0.8, and the high speed constant can be 1.0.

[0067] In the stand-alone state, the lifting belt is started separately during repair and maintenance, which requires a speed setting value. Therefore, in the manual state, the speed of the lifting belt can be manually set through the operation panel, that is, the low speed setting value and the high speed setting value.

[0068] In some possible implementations, when the lifting belt is in the material head stage state, the low speed of the lifting belt runs according to the theoretical low speed, and the high speed of the lifting belt runs according to the theoretical high speed; wherein, the material head stage state is the stage when there is no tobacco material on the belt scale.

[0069] That is to say, in the case of the material head stage in production, the actual operating frequency of the lifting belt is determined by the theoretical operating frequency, that is:

[0070] Actual low speed frequency (HZ) = theoretical low speed frequency (HZ)

[0071] Actual high speed frequency (HZ) = theoretical high speed frequency (HZ)

[0072] In the embodiment, the theoretical low-speed frequency of the feeder lifting belt is 15HZ, the theoretical high-speed frequency is 20HZ, and the instantaneous flow rate of the belt scale at the head stage is <50kg / h.

[0073] In some possible implementations, when the lifting belt is in a manual operation state, the low speed of the lifting belt runs according to a theoretical low speed, and the high speed of the lifting belt runs according to a theoretical high speed;

[0074] That is to say, when the feeder lifting belt is in the local manual state, the actual operating frequency of the lifting belt is:

[0075] Actual low speed frequency (HZ) = theoretical low speed frequency (HZ)

[0076] Actual high speed frequency (HZ) = theoretical high speed frequency (HZ)

[0077] Through this embodiment, the running speed of the feeder lifting belt is precisely controlled by dual frequency parameters (low speed frequency and high speed frequency). The setting values ​​of these two frequencies are differentially configured according to the running state of the equipment to achieve the best balance between running efficiency and tobacco material processing.

[0078] In some possible embodiments, the light transmissibility and light shielding property of the phototube are judged at different material level heights;

[0079] In this embodiment, the phototubes can be arranged at different heights above the belt, such as Figure 1 the first phototube G1 at the high material level, the second phototube G2 at the medium material level, and the third phototube G3 at the low material level shown in Figure 1 . The adjustment of the speed and frequency range of the feeder lifting belt is mainly determined by the phototube monitoring the metering tube. When the PLC system receives the change in the state of the phototube, it judges the light transmissibility and light shielding property of the phototube; and immediately triggers the corresponding adjustment of the lifting belt frequency. In the present invention, the phototube is implemented by using an existing phototube, and the model is not limited. In addition, the phototube can also be replaced by a photoelectric switch and applied in the present invention.

[0080] In some possible embodiments, if the phototube at the low material level is light transmissive, the lifting belt runs at a high speed. If the phototube at the low material level is shielded, the lifting belt runs following the speed of the belt scale after a shielding delay, so as to keep the height of the cut tobacco material on the belt scale within a certain range;

[0081] That is to say, when the lowest phototube in the metering tube is light transmissive, there is a lack of cut tobacco material in the metering tube, and the feeder lifting belt runs at a high speed. When the lowest phototube is shielded, the cut tobacco material has accumulated in the metering tube and the material height has exceeded the detection plane of the lowest phototube, and the lifting belt runs following the speed of the belt scale after a set shielding delay.

[0082] In some possible embodiments, if the phototube at the medium material level is shielded, the lifting belt runs at a low speed. If the phototube at the medium material level is light transmissive, the lifting belt runs following the speed of the belt scale after a light transmission delay, so as to keep the height of the cut tobacco material on the belt scale within a certain range.

[0083] That is to say, when the phototube at the medium material level in the metering tube is shielded, the accumulated amount of the cut tobacco material in the metering tube reaches a preset sufficient threshold, and the feeder lifting belt runs at a low speed. When the phototube at the medium material level is light transmissive, the lifting belt runs following the speed of the belt scale after a set light transmission delay.

[0084] The PLC system continuously monitors the state change of the phototube and reasonably adjusts the running speed of the lifting belt according to the information fed back in real time.

[0085] The present invention realizes the speed control of the feeder lifting belt through the low-speed constant, the high-speed constant and the running speed of the electronic belt scale. The feeder lifting belt of the present invention can adapt to the running speed of the belt scale, ensuring the stability of the material flow rate, avoiding the occurrence of material breakage and blockage; at the same time, reducing the start-stop times and high-low speed switching times of the feeder lifting belt, and prolonging the service life of the lifting belt.

[0086] As described above in combination with Figure 2 , Figure 3 a detailed introduction to the method for controlling the speed of the elevator belt provided by the embodiments of the present invention has been given. Next, the device for controlling the speed of the elevator belt provided by the embodiments of the present invention will be introduced in combination with the accompanying drawings.

[0087] Refer to Figure 5 which is a structural diagram of the device for controlling the speed of the elevator belt shown in the present invention. The device includes

[0088] a frequency determination module configured to determine the low-speed speed and high-speed speed of the elevator belt according to the obtained operating state of the elevator belt;

[0089] a judgment module configured to judge the light transmissibility and light shielding property of the photoelectric tube at different material level heights;

[0090] a first control module configured to: if the photoelectric tube at the low material level is light transmissive and remains light transmissive after a set time, the elevator belt runs at the high-speed speed so that the height of the cut tobacco material in the metering tube is maintained between the photoelectric tubes at the middle material level and the low material level;

[0091] a second control module configured to: if the photoelectric tube at the middle material level is light shielded and remains light shielded after a set time, the elevator belt runs at the low-speed speed so that the height of the cut tobacco material in the metering tube is maintained between the photoelectric tubes at the middle material level and the low material level.

[0092] In some possible implementation manners, the frequency determination module is specifically further configured to: if the operating state of the elevator belt is normal operation, judge whether the speed coefficient is lost;

[0093] If the low-speed constant is equal to zero, assign the theoretical low-speed value to the low-speed constant; if the high-speed constant is equal to zero, assign the theoretical high-speed value to the high-speed constant; if both the low-speed constant and the high-speed constant are not zero, the low-speed constant and the high-speed coefficient remain unchanged;

[0094] Calculate the low-speed speed of the elevator belt according to the product of the belt scale speed and the low-speed constant; calculate the high-speed speed of the elevator belt according to the product of the belt scale speed and the high-speed constant.

[0095] In some possible implementation manners, the frequency determination module is specifically further configured to: if the operating state of the elevator belt is the head-of-material stage state, the low-speed speed of the elevator belt runs according to the theoretical low-speed speed, and the high-speed speed of the elevator belt runs according to the theoretical high-speed speed;

[0096] wherein, the head-of-material stage state is the stage when there is no cut tobacco material on the belt scale.

[0097] In some possible embodiments, the frequency determination module is further specifically configured to: if the running state of the lifting belt is in the manual state, the low-speed speed of the lifting belt runs at the theoretical low-speed speed, and the high-speed speed of the lifting belt runs at the theoretical high-speed speed.

[0098] In some possible implementation manners, the low-speed constant and the high-speed constant need to be set according to empirical values and on-site test results.

[0099] The present invention regulates the speed of the lifting belt according to the speed of the electronic belt scale. By calculating the low-speed constant and the high-speed constant, the speed and flow of the lifting belt are matched with the operation of the electronic scale, and the high and low speeds of the feeding machine lifting belt are restricted. It solves the problem that the frequency adjustment of the original feeding machine lifting belt is unstable under the control of the photoelectric signal of the metering tube. By optimizing the control program, the automatic adjustment of the speed of the feeding machine lifting belt is realized, effectively preventing the problem that the speed adjustment of the lifting belt is not timely due to abnormal detection of the metering tube, reducing the risk of material blockage or shortage in the metering tube caused by the abnormal state of the photoelectric signal of the metering tube, ensuring a reasonable match between the feeding speed of the feeding machine and the running speed of the electronic belt scale, realizing the continuous supply of material transportation on the production line, and significantly reducing the start-stop times of the feeding machine equipment.

[0100] See Figure 1 FIG. is the structural diagram of the feeding machine lifting belt speed control device shown in the present invention. The device includes a feeding bin, the feeding bin is installed on the feeding bin bottom belt, the feeding bin bottom belt is driven by a feeding bin motor, a cloth device is installed above the feeding bin, the discharging end of the feeding bin is connected with a lifting belt, a feeding roller is installed at the middle position of the lifting belt, the feeding roller is driven by a feeding roller motor, a feeding lifting belt motor is installed at the top end of the lifting belt, and a belt scale is arranged below the upper end of the lifting belt. Above the belt scale, there is a first photoelectric tube at the high material level, a second photoelectric tube at the medium material level, and a third photoelectric tube at the low material level. The belt scale is driven by an electronic belt scale motor. The feeding bin motor drive, the feeding roller motor drive, the feeding lifting belt motor, the first photoelectric tube, the second photoelectric tube, the third photoelectric tube, and the electronic belt scale motor are all connected to the PLC system and controlled by the PLC system. The PLC system executes the corresponding steps in the embodiment of the feeding machine lifting belt speed control method.

[0101] In this embodiment, it is necessary to install a camera on the feeding machine to monitor the amount of cut tobacco material and the working condition of the feeding machine.

[0102] See Figure 6Structural diagram of the computer device shown. The computer device includes a processor, a communication interface, and a computer-readable storage medium. Among them, the processor, the communication interface, and the computer-readable storage medium can be connected through a bus or other means. Among them, the communication interface is used to receive and send data. The computer-readable storage medium can be stored in the memory of the computer device. The computer-readable storage medium is used to store computer programs. The computer programs include program instructions. The processor is used to execute the program instructions stored in the computer-readable storage medium. The processor (or CPU (Central Processing Unit, central processor)) is the computing core and control core of the computer device. It is suitable for implementing one or more instructions. Specifically, it is suitable for loading and executing one or more instructions to implement the corresponding steps in the embodiment of the method for controlling the speed of the lifting belt of the feeder.

[0103] This embodiment provides a computer-readable storage medium (Memory). The computer-readable storage medium is a memory device in the computer device and is used to store programs and data. It can be understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and, of course, the extended storage medium supported by the computer device. The computer-readable storage medium provides a storage space, and this storage space stores the processing system of the computer device.

[0104] Moreover, one or more instructions suitable for being loaded and executed by the processor are also stored in this storage space. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory; optionally, it can also be at least one computer-readable storage medium located far from the aforementioned processor.

[0105] In one embodiment, one or more instructions are stored in the computer-readable storage medium; the processor loads and executes one or more instructions stored in the computer-readable storage medium to implement the corresponding steps in the embodiment of the method for controlling the speed of the lifting belt of the feeder.

[0106] This embodiment provides a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and these computer instructions are stored in the computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the corresponding steps in the embodiment of the method for controlling the speed of the lifting belt of the feeder.

[0107] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) that contain computer-usable program code.

[0108] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0109] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0111] Those of ordinary skill in the art can understand that to implement all or part of the processes in the above-described embodiment methods, it can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-described method embodiments. Among them, the storage medium can be a magnetic disk, an optical disc, a read-only memory (ROM), or a random access memory (RAM), etc.

[0112] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for controlling the speed of a feeder lifting belt, characterized in that: include: According to the acquired running state of the lifting belt, the low speed and high speed of the lifting belt are determined; Determine the light transmittance and shielding properties of the photoelectric tube at different material level heights; If the photoelectric tube of the low material level is transparent and the photoelectric tube of the low material level is still transparent after the set time, the lifting belt will run at a high speed to keep the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level; If the photoelectric tube of the middle material level is blocked and is still blocked after the set time, the lifting belt will run at a low speed to keep the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level.

2. The method for controlling the speed of a feeder lifting belt according to claim 1, characterized in that: The method of determining the low speed and high speed of the lifting belt according to the acquired running state of the lifting belt comprises: If the lifting belt is in normal operation, determine whether the speed coefficient is lost; If the low speed constant is equal to zero, the theoretical low speed value is assigned to the low speed constant; if the height constant is equal to zero, the theoretical high speed value is assigned to the high speed constant; if both the low speed constant and the high speed constant are not zero, the low speed constant and the height coefficient remain unchanged; The low speed of the lifting belt is calculated based on the product of the belt scale speed and the low speed constant; the high speed of the lifting belt is calculated based on the product of the belt scale speed and the high speed constant.

3. The method for controlling the speed of a feeder lifting belt according to claim 1, characterized in that: The method further comprises: determining the low speed and the high speed of the lifting belt according to the acquired running state of the lifting belt; If the lifting belt is in the material head stage, the low speed of the lifting belt runs according to the theoretical low speed, and the high speed of the lifting belt runs according to the theoretical high speed; The material head stage state is the stage when there is no tobacco material on the belt scale.

4. The method for controlling the speed of a feeder lifting belt according to claim 1, characterized in that: The method further comprises: determining the low speed and the high speed of the lifting belt according to the acquired running state of the lifting belt; If the lifting belt is in manual operation, the low speed of the lifting belt runs according to the theoretical low speed, and the high speed of the lifting belt runs according to the theoretical high speed.

5. The method for controlling the speed of a feeder lifting belt according to claim 1, characterized in that: The low speed constant and high speed constant need to be set based on experience and field test results.

6. Feeder lifting belt speed control device, characterized in that: include: A frequency determination module, configured to: determine a low speed and a high speed of the lifting belt according to the acquired running state of the lifting belt; A judgment module is configured to: judge the light transmittance and shielding properties of the photoelectric tube at different material level heights; The first control module is configured to: if the photoelectric tube of the low material level is light-transmissive and the photoelectric tube of the low material level is still light-transmissive after a set time, the lifting belt runs at a high speed to maintain the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level; The second control module is configured as follows: if the photoelectric tube of the middle material level is blocked and is still blocked after a set time, the lifting belt runs at a low speed to maintain the height of the tobacco material in the quantitative tube between the photoelectric tube of the middle material level and the photoelectric tube of the low material level.

7. Feeder lifting belt speed control device, characterized in that: include: A feeding bin, wherein the feeding bin is installed on a bottom belt of the feeding bin, and the bottom belt of the feeding bin is driven by a feeding bin motor. A material distribution device is installed above the feeding bin, and a lifting belt is connected to the discharge end of the feeding bin. A feeding roller is installed in the middle position of the lifting belt, and the feeding roller is driven by a feeding roller motor. A feeding lifting belt motor is installed at the top of the lifting belt, and a belt scale is provided below the upper end of the lifting belt. A first photoelectric tube at a high material level, a second photoelectric tube at a middle material level, and a third photoelectric tube at a low material level are arranged above the belt scale. The belt scale is driven by an electronic belt scale motor. The feeding bin motor drive, the feeding roller motor drive, the feeding lifting belt motor, the first photoelectric tube, the second photoelectric tube, the third photoelectric tube, and the electronic belt scale motor are all connected to a PLC system and controlled by the PLC system. The PLC system executes the steps in the feeder lifting belt speed control method described in any one of claims 1 to 5.

8. A computer device, characterized in that: a processor adapted to execute a computer program; A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by the processor, the steps in the feeder lifting belt speed control method as described in any one of claims 1 to 5 are implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is suitable for being loaded by a processor and executing the steps in the feeder lifting belt speed control method according to any one of claims 1-5.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps in the feeder lifting belt speed control method according to any one of claims 1 to 5 are implemented.

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