Tobacco leaf shredding system shredding flow control system and method

Abstract

The invention discloses a tobacco leaf shredding system shredding flow control system and method. The system comprises a feeding machine, a shredding machine and a control module, the feeding machine comprises a material distribution trolley, a feeding bin, a lifting belt, a quantitative pipe and a quantitative belt. A low-material-level photoelectric switch and a high-material-level first photoelectric switch are arranged in the quantitative pipe; the control module is used for controlling single-layer material distribution of the material distribution trolley so that the height in the feeding bin can be kept at the preset height; when the height in the feeding bin is a preset height, the control module is also used for controlling the rotating speed of the lifting belt to follow the rotating speed of the quantitative belt when a signal output by the low-material-level photoelectric switch is detected and a signal output by the high-material-level first photoelectric switch is not detected; wherein the rotating speed of the quantitative belt is determined according to the real-time shredding height information and the shredding rotating speed of the shredding machine. According to the scheme, the shredding feeding flow stability is improved, the shredding stability is effectively guaranteed, and the shredding quality is improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of manufacturing paper cigarette, in particular to a tobacco leaf cutting system cutting flow control system and method. BACKGROUND

[0002] The tobacco leaf cutting system is a key link in tobacco processing, mainly used for cutting the pretreated tobacco leaves (such as de-stemming, moisture recovery, etc.) into uniform width tobacco shreds to meet the requirements of subsequent cigarette processing. Its composition usually includes a storage type feeder and a tobacco leaf cutting machine;

[0003] The storage type feeder, as a key equipment in tobacco processing, has the functions of lifting and storing materials, and is mainly used for uniformly and continuously feeding the pretreated tobacco leaves (blade or stem) into the cutting machine. In order to meet the process flow requirements of the tobacco leaf cutting machine, the storage type feeder is usually used in combination with a metering pipe, an electronic belt scale or other equipment, and can constantly, uniformly and quantitatively deliver the material flow to the inlet of the tobacco leaf cutting machine;

[0004] In the working process of the existing storage type feeder, the process flow stability control has always been a technical difficulty. The traditional process flow control method of the storage type feeder causes problems such as repeated material distribution of the material distribution vehicle, frequent start and stop of the lifting belt, and unstable material flow. SUMMARY

[0005] The present application provides a tobacco leaf cutting system cutting flow control system and method, which improves the cutting supply flow stability, effectively ensures the cutting stability, and promotes the improvement of cutting quality.

[0006] To achieve the above purpose, in a first aspect, the embodiment of the present application provides a tobacco leaf cutting system cutting flow control system, which comprises a feeder, a cutting machine and a control module.

[0007] The feeder comprises a material distribution vehicle, a feeding bin, a lifting belt, a metering pipe and a metering belt; the metering pipe is provided with a low material level photoelectric switch and a high material level first photoelectric switch;

[0008] The control module is used to control the single-layer material distribution of the material distribution vehicle so that the height in the feeding bin is kept at a preset height; when the height in the feeding bin is the preset height, the control module is further used to control the rotating speed of the lifting belt to follow the rotating speed of the metering belt when the signal output by the low material level photoelectric switch is detected and the signal output by the high material level first photoelectric switch is not detected; wherein the rotating speed of the metering belt is determined according to the real-time cutting height information and cutting rotating speed of the cutting machine.

[0009] Optionally, the control module is used to control the single-layer material distribution of the material distribution vehicle, specifically:

[0010] Stop the feeding of the material into the material distribution vehicle when the material distribution belt of the material distribution vehicle stops to control the single-layer material distribution of the material distribution vehicle.

[0011] Optionally, the control module is configured to control the single-layer material distribution of the material distribution vehicle, in particular:

[0012] Start the material distribution belt of the material distribution vehicle after a delay of a preset time when the material distribution belt of the material distribution vehicle is allowed to start to control the single-layer material distribution of the material distribution vehicle.

[0013] Optionally, the dosing tube further comprises a high material level second photoelectric switch, a blocked material level first photoelectric switch and a blocked material level second photoelectric switch.

[0014] The control module is further configured to control the material distribution belt to keep moving when the high material level first photoelectric switch outputs a signal and the high material level second photoelectric switch does not output a signal when the height in the feeding bin is the preset height.

[0015] And / or, control the material distribution belt to keep moving when the blocked material level first photoelectric switch outputs a signal and the blocked material level second photoelectric switch does not output a signal.

[0016] Optionally, the dosing tube further comprises a high material level second photoelectric switch.

[0017] The control module is further configured to control the extension of the time for detecting the output signal of the high material level first photoelectric switch and the output signal of the high material level second photoelectric switch when the height in the feeding bin is the preset height.

[0018] Optionally, the control module is configured to control the rotation speed of the material distribution belt to follow the rotation speed of the dosing belt, in particular:

[0019] The control module determines the rotation speed of the material distribution belt according to a tracking factor and the rotation speed of the dosing belt.

[0020] Optionally, after the control module determines the rotation speed of the material distribution belt according to the tracking factor and the rotation speed of the dosing belt:

[0021] Determine whether to receive the signal output by the low material level photoelectric switch; when no signal output by the low material level photoelectric switch is detected, correct the tracking factor; and increase the rotation speed of the material distribution belt according to the corrected tracking factor and the rotation speed of the dosing belt.

[0022] Optionally, the dosing tube further comprises a blocked material level first photoelectric switch and a blocked material level second photoelectric switch.

[0023] The control module determines the rotating speed of the lifting belt according to the tracking factor and the rotating speed of the metering belt, and then determines whether the signal output by the first photoelectric switch at the blockage position and the signal output by the second photoelectric switch at the blockage position are received; when the signal output by the first photoelectric switch at the blockage position and the signal output by the second photoelectric switch at the blockage position are detected, the tracking factor is corrected; and the rotating speed of the lifting belt is reduced according to the corrected tracking factor and the rotating speed of the metering belt.

[0024] Optionally, the control module is configured to determine the rotating speed of the lifting belt according to the tracking factor and the rotating speed of the metering belt, and then determine whether the rotating speed of the lifting belt is greater than a preset first rotating speed; when the rotating speed of the lifting belt is greater than the preset first rotating speed, the rotating speed of the lifting belt is controlled to remain at the preset first rotating speed.

[0025] Alternatively, the control module is configured to determine whether the rotating speed of the lifting belt is less than a preset second rotating speed; when the rotating speed of the lifting belt is less than the preset second rotating speed, the rotating speed of the lifting belt is controlled to remain at the preset second rotating speed.

[0026] Optionally, the rotating speed of the metering belt is determined according to real-time cutting height information of a cutting machine and a cutting rotating speed, and specifically includes the following steps:

[0027] determining a height information difference value according to the real-time cutting height information and preset cutting height information;

[0028] determining the rotating speed of the metering belt according to the height information difference value, a proportional factor and an initial rotating speed of the metering belt; wherein the proportional factor is related to the cutting rotating speed.

[0029] In a second aspect, an embodiment of the present application further provides a tobacco leaf cutting flow control method, which is applied to the tobacco leaf cutting flow control system in the first aspect, and includes the following steps:

[0030] controlling the single-layer distribution of the distribution vehicle to keep the height in the feeding bin at a preset height;

[0031] when the height in the feeding bin is at the preset height, and the signal output by the low-level photoelectric switch is detected and the signal output by the first photoelectric switch at the high-level position is not detected, the rotating speed of the lifting belt is controlled to follow the rotating speed of the metering belt; wherein the rotating speed of the metering belt is determined according to real-time cutting height information of a cutting machine and a cutting rotating speed.

[0032] The embodiment of the present application sets the low material level photoelectric switch and the high material level first photoelectric switch in the quantitative pipe; the control module controls the single-layer distribution of the distribution vehicle to keep the height in the feeding bin as a preset height; when the height in the feeding bin is the preset height, the control module controls the rotating speed of the lifting belt to follow the rotating speed of the quantitative belt when the signal output by the low material level photoelectric switch is detected and the signal output by the high material level first photoelectric switch is not detected; thus, the repeated distribution of the distribution vehicle of the storage bin type feeder is avoided, and the problem of material blockage in the source of the feeding bin is avoided; meanwhile, when the height in the feeding bin is kept as the preset height, the rotating speed of the lifting belt is controlled to follow the rotating speed of the quantitative belt, so that the material flow output by the quantitative belt and the material flow input by the lifting belt are kept consistent, so that the stability of the material in the transportation process is ensured, and the stability of the tobacco shred feeding flow is ensured as a whole, the stability of the tobacco shred is effectively ensured, and the improvement of the quality of the tobacco shred is promoted.

[0033] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is a structural schematic diagram of a tobacco shred cutting flow control system provided by the embodiment of the present application;

[0036] Figure 2 is a structural schematic diagram of another tobacco shred cutting flow control system provided by the embodiment of the present application;

[0037] Figure 3 is a flow schematic diagram of a tobacco shred cutting flow control method provided by the embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0040] Figure 1 is a schematic structural view of a tobacco cutting system cutting flow control system provided by an embodiment of the present application, as shown in the control system comprises: a feeder 10, a cutting machine 20 and a control module 30; the feeder 10 comprises: a distribution car 11, a feeding bin 12, a lifting belt 13, a quantitative pipe 14 and a quantitative belt 15; the quantitative pipe 14 is provided with a low material level photoelectric switch 141 and a high material level first photoelectric switch 142; Figure 1

[0041] The control module 30 is used to control the single-layer distribution of the distribution car 11 so as to keep the height in the feeding bin 12 as a preset height; when the height in the feeding bin 12 is the preset height, when the signal output by the low material level photoelectric switch 141 is detected and the signal output by the high material level first photoelectric switch 142 is not detected, the rotating speed of the lifting belt 13 is controlled to follow the rotating speed of the quantitative belt 15; wherein the rotating speed of the quantitative belt 15 is determined according to the real-time cutting height information and the cutting rotating speed of the cutting machine 20.

[0042] Generally, the process of tobacco cutting system cutting is: the distribution car 11 at the entrance is distributed, the distribution car 11 can place the material in the feeding bin 12, and then the material in the feeding bin 12 can be conveyed to the quantitative pipe 14 through the lifting belt 13, and the material in the quantitative pipe 14 can fall on the quantitative belt 15; the material on the quantitative belt 15 can be sent into the cutting machine 20 to complete the cutting. In the prior art, during the feeding process of the distribution car 11 into the feeding bin 12, there are multiple layers of distribution on the distribution car 11, which causes the material to be blocked on the distribution car 11 and the material in the feeding bin to be uneven; in the embodiment, the single-layer distribution of the distribution car 11 can be controlled, so that the height in the feeding bin 12 can be kept as a preset height, that is, the material in the feeding bin is uniform, which avoids the repeated distribution of the distribution car of the storage-type feeder and avoids the problem of blocking the material in the source of the feeding bin; the way of controlling the single-layer distribution of the distribution car 11 is not limited in the embodiment.

[0043] ​Meanwhile, in the prior art, low material level photoelectric switch and high material level photoelectric switch are arranged in the metering tube 14 during the cutting process. The low material level photoelectric switch can detect the material falling to the low material level, and outputs a signal when the low material level is provided with material. The high material level photoelectric switch can detect the material falling to the high material level, and outputs a signal when the high material level is provided with material. When the low material level photoelectric switch fails to detect the material, the speed of the lifting belt 13 is usually high. When the high material level photoelectric switch detects the material at the high material level, the lifting belt 13 stops. When the low material level photoelectric switch detects the material and the high material level photoelectric switch fails to detect the material at the high material level, the speed of the lifting belt 13 is set to a constant value, although the cutting height changes. The speed of the metering belt 15 is set to a constant value (the two speeds are randomly set according to experience). During this stage, under the constant control of the lifting belt 13 and the metering belt 15, the feeding starts and stops frequently, and the high and low speeds are frequently switched, so that the flow of the metering belt 15 is unstable, and the cutting is unstable.

[0044] In the cutting process of the embodiment, when the signal output by the low material level photoelectric switch 141 is detected and the signal output by the high material level first photoelectric switch 142 is not detected, the speed of the metering belt 15 can be determined in real time according to the cutting height information of the cutting machine 20 and the cutting speed, and the speed of the lifting belt 13 is controlled to follow the speed of the metering belt 15. The output material flow of the metering belt and the input material flow of the lifting belt are kept consistent, so as to ensure the stability of the material in the transportation process. Thus, the present scheme controls the single-layer material of the material car 11 during the feeding stage, changes the stopping condition threshold of the lifting belt 13 during the cutting process, and controls the speed of the lifting belt 13 to follow the speed of the metering belt 15, so as to stabilize the cutting material flow, effectively ensure the cutting stability, and promote the improvement of the cutting quality.

[0045] Optionally, on the basis of the above embodiment, further refinement is continued with reference to Figure 1 In some embodiments, the control module 30 is configured to control the single-layer material of the material car, specifically, to control the material car 11 to stop feeding when the material belt on the material car 11 stops.

[0046] Wherein, the material belt on the material car 11 rotates clockwise in the prior art, so that the material on the material belt can be transported in the right bin of the feeding bin 12; when the right bin of the feeding bin 12 reaches the requirement, the material car 11 is controlled to move left (at this time, the material belt rotates clockwise), and when the material car 11 moves to the limit position, the material car 11 moves right, and then the material belt can be controlled to rotate counterclockwise to transport the material on the material belt in the left bin of the feeding bin 12; before the material belt is controlled to rotate counterclockwise, the material belt on the material car 11 needs to be stopped; and because the material belt on the material car 11 stops in the prior art, the inlet continues to feed, so that when the material belt is controlled to rotate counterclockwise, multiple layers of material on the material belt are caused, and the material on the material belt is transported in the left bin of the feeding bin 12, which causes the problem of material blockage; the embodiment controls the material belt on the material car 11 to stop feeding, so as to control the single-layer material of the material car 11, so that the material of the feeding bin is uniform, and the problem of material blockage in the source of the feeding bin is avoided.

[0047] Optionally, continuing to refer to Figure 1 In some embodiments, the control module 30 is configured to control the single-layer material of the material car, specifically: when the material belt on the material car is in a start-allowed state, the material belt on the material car is started after a delay of a preset time to control the single-layer material of the material car.

[0048] Wherein, when the material belt on the material car is in a start-allowed state, that is, when the material belt on the material car is controlled to rotate counterclockwise to transport the material on the material belt in the left bin of the feeding bin 12, because the material belt on the material car 11 stops in the prior art, the inlet continues to feed, so that the material on the material belt accumulates, so that the material belt on the material car is started after a delay of a preset time, so that the accumulated material on the material belt is dispersed, and the single-layer material of the material car is ensured when the material on the material belt is transported in the left bin of the feeding bin 12. Wherein, the preset time can be completed by calibration.

[0049] Optionally, Figure 2 is another structure diagram of a tobacco cutting system cutting flow control system provided by the embodiment of the application, as Figure 2 shown, the quantitative pipe 14 further comprises: a high material level second photoelectric switch 143, a material blockage level first photoelectric switch 144, and a material blockage level second photoelectric switch 145; the control module 30 is further configured to control the lifting belt 13 to keep moving when the height in the feeding bin 12 is a preset height, and when the high material level first photoelectric switch 142 outputs a signal and the high material level second photoelectric switch 143 does not output a signal.

[0050] And / or, control the lifting belt to keep moving when the material blockage level first photoelectric switch 144 outputs a signal and the material blockage level second photoelectric switch 145 does not output a signal.

[0051] Wherein, due to the single low material level photoelectric switch and the single high material level photoelectric switch arranged in the quantitative tube 14, the wave-shaped feeding will occur, and the wave-shaped feeding will cause the cloth shortage, so that the false judgment and the stop of the lifting belt problem are prone to occur; the embodiment further arranges the high material level second photoelectric switch 143 on the basis of the low material level photoelectric switch 141 and the high material level first photoelectric switch 142; in this way, when the high material level first photoelectric switch 142 output signal and the high material level second photoelectric switch 143 are detected, the lifting belt 13 is controlled to keep moving; when the high material level first photoelectric switch 142 output signal and the high material level second photoelectric switch 143 output signal are detected at the same time, the lifting belt 13 is controlled to stop moving, so that the quantitative tube cloth is more, so that the lifting belt lowering stop frequency is controlled, so that the frequent start and stop of the belt is avoided, so that the flow stability on the subsequent quantitative belt 15 is ensured; so, on the basis of the above-mentioned control of the rotating speed of the lifting belt 13 following the rotating speed of the quantitative belt 15, the high material level second photoelectric switch 143 is further arranged, so that the flow stability on the subsequent quantitative belt 15 is further ensured.

[0052] In addition, the first photoelectric switch 144 and the second photoelectric switch 145 can be arranged at the same time; the first photoelectric switch 144 and the second photoelectric switch 145 can detect the material falling to the material blocking position, and the material blocking photoelectric switch outputs a signal when there is material at the material blocking position; in this way, when the first photoelectric switch 144 output signal and the second photoelectric switch 145 are detected, the lifting belt is controlled to keep moving; when the first photoelectric switch 144 output signal and the second photoelectric switch 145 output signal are detected at the same time, the lifting belt 13 is controlled to stop moving, so that the quantitative tube cloth is more, so that the lifting belt lowering stop frequency is controlled, so that the frequent start and stop of the belt is avoided.

[0053] It can be understood that the material blocking position is higher than the high material level, and the first photoelectric switch 144 and the second photoelectric switch 145 are arranged on the basis of the high material level first photoelectric switch 142 output signal and the high material level second photoelectric switch 143, so that the quantitative tube cloth is more, so that the reliability of the control of the lifting belt lowering stop frequency is improved.

[0054] Optionally, in other embodiments, the control module 30 is further used to control the extension of the time of detecting the high material level first photoelectric switch output signal and the time of detecting the high material level second photoelectric switch output signal.

[0055] In some embodiments, the time for the high material level first photoelectric switch 141 to output a signal and the time for the high material level second photoelectric switch 142 to output a signal can be controlled, so that the dosing tube can be filled with more material, and the lifting belt can be controlled to reduce the stop frequency, so that the lifting belt is not frequently started and stopped, and the flow stability of the subsequent dosing belt 15 is ensured.

[0056] Optionally, with reference to 1-2, the control module 30 is configured to control the rotation speed of the lifting belt 13 to follow the rotation speed of the dosing belt, and specifically, the rotation speed of the lifting belt is determined according to the tracking factor and the rotation speed of the dosing belt.

[0057] In some embodiments, the tracking factor is a proportional factor for ensuring that the material flow output by the dosing belt is consistent with the material flow input by the lifting belt. Since the cutting height information of the real-time cutting machine 20 is unstable, the rotation speed of the dosing belt 15 is determined according to the cutting height information and the cutting speed of the real-time cutting machine 20. The rotation speed of the lifting belt is determined according to the tracking factor and the rotation speed of the real-time dosing belt. The tracking factor can be determined according to the structural relationship between the lifting belt and the dosing belt.

[0058] Optionally, with reference to 1-2, the control module 30 is further configured to, after determining the rotation speed of the lifting belt according to the tracking factor and the rotation speed of the dosing belt: determine whether a signal output by the low material level photoelectric switch 141 is received; when the signal output by the low material level photoelectric switch 141 is not detected, correct the tracking factor; and correct the rotation speed of the lifting belt 13 according to the corrected tracking factor and the rotation speed of the dosing belt 15.

[0059] In some embodiments, when the signal output by the low material level photoelectric switch 141 is detected, and the signals output by the high material level first photoelectric switch 142 and the high material level second photoelectric switch are not detected, after the rotation speed of the lifting belt is determined according to the tracking factor and the rotation speed of the dosing belt, if the signal output by the low material level photoelectric switch 141 is not detected, it indicates that there is no material at the low material level at this time, and the rotation speed of the lifting belt is insufficient, which can cause unstable feeding. At this time, the tracking factor can be corrected, and the rotation speed of the lifting belt 13 can be corrected according to the corrected tracking factor and the rotation speed of the dosing belt 15, so that the situation of no material at the low material level can be avoided.

[0060] Optionally, with reference to 1-2, the dosing tube 14 further comprises a first blockage level photoelectric switch and a second blockage level photoelectric switch, and the control module 30 is further configured to, after determining the rotation speed of the lifting belt according to the tracking factor and the rotation speed of the dosing belt 15: determine whether a signal output by the first blockage level photoelectric switch and a signal output by the second blockage level photoelectric switch are received; when the signals output by the first blockage level photoelectric switch and the second blockage level photoelectric switch are detected, correct the tracking factor; and reduce the rotation speed of the lifting belt according to the corrected tracking factor and the rotation speed of the dosing belt.

[0061] When the signal output by the low material level photoelectric switch is detected, and the signals output by the high material level first photoelectric switch and the high material level second photoelectric switch are not detected, the rotational speed of the lifting belt is determined according to the tracking factor and the rotational speed of the quantitative belt, and then if the signals output by the first photoelectric switch of the blockage level and the second photoelectric switch of the blockage level are detected at the same time, it indicates that the material is accumulated at this time, and the rotational speed of the lifting belt is relatively large at this time, which will lead to unstable feeding; at this time, the tracking factor can be corrected, and the rotational speed of the lifting belt 13 is reduced according to the corrected tracking factor and the rotational speed of the quantitative belt 15, so that the material accumulation can be avoided.

[0062] Optionally, with reference to 1-2, the control module 30 is configured to determine whether the rotational speed of the lifting belt 13 is greater than a preset first rotational speed after the rotational speed of the lifting belt 13 is determined according to the tracking factor and the rotational speed of the quantitative belt 15; when the rotational speed of the lifting belt 13 is greater than the preset first rotational speed, the rotational speed of the quantitative belt is controlled to be maintained at the preset first rotational speed; or, it is determined whether the rotational speed of the lifting belt is less than a preset second rotational speed; when the rotational speed of the lifting belt is less than the preset second rotational speed, the rotational speed of the lifting belt 13 is controlled to be maintained at the preset second rotational speed.

[0063] Optionally, with reference to 1-2, the control module 30 is configured to determine whether the rotational speed of the lifting belt 13 is greater than a preset first rotational speed after the rotational speed of the lifting belt 13 is determined according to the tracking factor and the rotational speed of the quantitative belt 15; when the rotational speed of the lifting belt 13 is greater than the preset first rotational speed, the rotational speed of the quantitative belt is controlled to be maintained at the preset first rotational speed; or, it is determined whether the rotational speed of the lifting belt is less than a preset second rotational speed; when the rotational speed of the lifting belt is less than the preset second rotational speed, the rotational speed of the lifting belt 13 is controlled to be maintained at the preset second rotational speed.

[0064] Optionally, with reference to 1-2, the rotational speed of the quantitative belt 15 is determined according to real-time cutting height information of the cutting machine and a cutting rotational speed, specifically: the height information difference is determined according to the real-time cutting height information and preset cutting height information; the rotational speed of the quantitative belt is determined according to the height information difference, a proportional factor and an initial rotational speed of the quantitative belt; wherein the proportional factor is related to the cutting rotational speed.

[0065] Optionally, with reference to 1-2, the rotational speed of the quantitative belt 15 is determined according to real-time cutting height information of the cutting machine and a cutting rotational speed, specifically: the height information difference is determined according to the real-time cutting height information and preset cutting height information; the rotational speed of the quantitative belt is determined according to the height information difference, a proportional factor and an initial rotational speed of the quantitative belt; wherein the proportional factor is related to the cutting rotational speed.

[0066] Based on the same inventive concept, the embodiment of the present application also provides a tobacco leaf cutting system cutting flow control method, which is applied to the tobacco leaf cutting system cutting flow control system described in the above embodiment, Figure 3is a flowchart of a tobacco cutting system cutting flow control method provided by an embodiment of the present application; as shown in the figure, the tobacco cutting system cutting flow control method comprises: Figure 3

[0067] S110, control the single-layer distribution of the distribution vehicle to keep the height in the feeding bin as a preset height;

[0068] S120, when the height in the feeding bin is the preset height, control the rotating speed of the lifting belt to follow the rotating speed of the quantitative belt when the signal output by the low-level photoelectric switch is detected and the signals output by the high-level first photoelectric switch and the high-level second photoelectric switch are not detected; wherein the rotating speed of the quantitative belt is determined according to the real-time cutting height information and the cutting rotating speed of the cutting machine.

[0069] In the embodiment of the present application, the single-layer distribution of the distribution vehicle is controlled in the feeding stage, and the rotating speed of the lifting belt is controlled to follow the rotating speed of the quantitative belt in the cutting process, so that the cutting supply flow stability is overall ensured, the cutting stability is effectively ensured, and the cutting quality is improved.

[0070] Note that the above is only the preferred embodiment of the present application and the applied technical principle. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.​

Claims

1. A cut tobacco flow control system for a tobacco cutting system, the system comprising: The application relates to a feeding machine, a shredding machine and a control module. The feeding machine comprises a cloth car, a feeding bin, a lifting belt, a quantitative tube and a quantitative belt; low material level photoelectric switches and high material level first photoelectric switches are arranged in the quantitative tube. The control module is used for controlling the cloth car to feed cloth in single layer so that the height in the feeding bin is kept as a preset height; when the height in the feeding bin is the preset height, the control module is further used for controlling the rotating speed of the lifting belt to follow the rotating speed of the quantitative belt when the signal output by the low material level photoelectric switches is detected and the signal output by the high material level first photoelectric switches is not detected; wherein the rotating speed of the quantitative belt is determined according to the real-time shredding height information and the shredding rotating speed of the shredding machine. The control module is used for controlling the cloth car to feed cloth, specifically:

2. The tobacco cut system flow control system of claim 1, wherein, The control module is used for controlling the cloth car to feed cloth, specifically: When the cloth belt of the cloth car meets the starting condition, the control module is used for controlling the cloth belt of the cloth car to start after a preset time delay so as to control the cloth car to feed cloth in single layer.

3. The tobacco cut system flow control system of claim 1, wherein, The quantitative tube further comprises high material level second photoelectric switches, blockage level first photoelectric switches and blockage level second photoelectric switches. When the height in the feeding bin is the preset height, the control module is further used for controlling the lifting belt to keep moving when the signal output by the high material level first photoelectric switches is detected and the signal output by the high material level second photoelectric switches is not detected; and / or, the control module is further used for controlling the lifting belt to keep moving when the signal output by the blockage level first photoelectric switches is detected and the signal output by the blockage level second photoelectric switches is not detected.

4. The tobacco cut system flow control system of claim 1, wherein, The quantitative tube further comprises high material level second photoelectric switches. When the height in the feeding bin is the preset height, the control module is further used for controlling the time for detecting the signal output by the high material level first photoelectric switches and the time for detecting the signal output by the high material level second photoelectric switches to be prolonged. The control module is used for controlling the rotating speed of the lifting belt to follow the rotating speed of the quantitative belt, specifically:

5. The tobacco cut system flow control system of claim 1, wherein, The control module determines the rotating speed of the lifting belt according to a tracking factor and the rotating speed of the quantitative belt. After the control module determines the rotating speed of the lifting belt according to the tracking factor and the rotating speed of the quantitative belt:

6. The tobacco cut system flow control system of claim 1, wherein, The control module judges whether the signal output by the low material level photoelectric switches is received; when the signal output by the low material level photoelectric switches is not detected, the tracking factor is corrected; and the rotating speed of the lifting belt is increased according to the corrected tracking factor and the rotating speed of the quantitative belt. The quantitative tube further comprises blockage level first photoelectric switches and blockage level second photoelectric switches.

7. The tobacco cut system flow control system of claim 6, wherein, After the control module determines the rotating speed of the lifting belt according to the tracking factor and the rotating speed of the quantitative belt: the control module judges whether the signal output by the blockage level first photoelectric switches and the signal output by the blockage level second photoelectric switches are received; when the signal output by the blockage level first photoelectric switches and the signal output by the blockage level second photoelectric switches are detected, the tracking factor is corrected; and the rotating speed of the lifting belt is decreased according to the corrected tracking factor and the rotating speed of the quantitative belt. ​ 8. The tobacco cut system flow control system of claim 6, wherein, ​ ​ 9. The tobacco cut system flow control system of claim 6, wherein, The control module is configured to determine whether the rotation speed of the lifting belt is greater than a preset first rotation speed after determining the rotation speed of the lifting belt according to the tracking factor and the rotation speed of the quantitative belt; and control the rotation speed of the lifting belt to remain at the preset first rotation speed when the rotation speed of the lifting belt is greater than the preset first rotation speed. Alternatively, the control module is configured to determine whether the rotation speed of the lifting belt is less than a preset second rotation speed; and control the rotation speed of the lifting belt to remain at the preset second rotation speed when the rotation speed of the lifting belt is less than the preset second rotation speed.

10. The tobacco cut system flow control system of claim 1, wherein, The rotation speed of the quantitative belt is determined according to real-time cutting height information of a cutting machine and a cutting rotation speed, specifically as follows: determining a height information difference value according to the real-time cutting height information and preset cutting height information; determining the rotation speed of the quantitative belt according to the height information difference value, a proportional factor and an initial rotation speed of the quantitative belt; wherein the proportional factor is related to the cutting rotation speed.

11. A tobacco cut system cut flow control method characterized by, The tobacco cutting system cutting flow control method comprises: controlling the single-layer cloth of the cloth vehicle to keep the height in the feeding bin at a preset height; when the height in the feeding bin is the preset height, controlling the rotation speed of the lifting belt to follow the rotation speed of the quantitative belt when a signal output by the low-level light-electricity switch is detected and a signal output by the high-level first light-electricity switch is not detected; wherein the rotation speed of the quantitative belt is determined according to real-time cutting height information of a cutting machine and a cutting rotation speed.

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