Storage cabinet fabric control method and device

Abstract

The present application relates to the technical field of tobacco making equipment control, and provides a storage cabinet material distribution control method and device, the method comprising: acquiring quality information, flow information and the number of distribution channels of each layer of a plurality of materials to be distributed; determining the one-way distribution time of a distribution vehicle reciprocating above the storage cabinet based on the quality information, the flow information and the number of distribution channels; and controlling the distribution vehicle to distribute the storage cabinet based on the one-way distribution time. According to the quality information, the flow information and the number of distribution channels of each layer of the material to be distributed, the one-way distribution time of a single operation of the distribution vehicle is determined, which can reduce the distribution interval of the distribution vehicle relative to the half-cabinet or full-cabinet distribution mode, achieve the purpose of improving the distribution thickness and ensuring the discharge flow, and improve the uniformity of various materials to be distributed and the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of tobacco manufacturing equipment control technology, and in particular to a method and device for controlling the fabric distribution in a storage cabinet. Background Technology

[0002] During the processing of Burley tobacco leaves, the leaves are output from the automatic formula library and, after passing through independently set automatic unpacking, unpacking, and slicing processes, enter the loosening and moistening stage. This loosening and moistening process increases the temperature and moisture content, making the leaves more resilient. After loosening and rehydration, the leaves are flow-controlled and enter a cleaning machine to remove non-tobacco substances. After cleaning, the Burley tobacco leaves are flow-controlled and then fed with lining material before being discharged. The leaves with lining material enter a storage tank for buffering, allowing the lining liquid and moisture to further penetrate the leaves, thus balancing the moisture content of the tobacco leaves. At the same time, this buffering process coordinates the preceding and following processes, improving the operating efficiency of the production line.

[0003] In existing technologies, proximity switches are used to control the reciprocating motion of the fabric trolley, resulting in a fixed reciprocating range for the trolley. There are only two modes: full-cabinet and half-cabinet stacking. When the total amount of material is small, such as in experimental leaf groups or small batches, even with half-cabinet stacking, the fabric is too thin due to the small amount of material. This makes it impossible to ensure the uniformity of the distribution of various tobacco varieties in the material pile, which in turn affects the blending effect of the tobacco leaves. Furthermore, when unloading, even if the bottom conveyor belt is running at full speed, it cannot meet the supply flow required by the downstream processes, causing frequent material interruptions in the downstream processes and affecting production efficiency. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a method for controlling the material distribution in storage cabinets, which increases the material thickness to ensure the outflow rate while improving material uniformity.

[0005] The present invention also proposes a storage cabinet fabric control device.

[0006] A storage cabinet fabric control method according to a first aspect of the present invention includes:

[0007] Obtain quality information, flow rate information, and the number of fabric layers for each layer of the material to be laid;

[0008] Based on the quality information, the flow rate information, and the number of fabric passes, determine the one-way fabric spreading time of the fabric spreading vehicle reciprocating above the storage tank;

[0009] Based on the single-trip fabric placement time, the fabric placement vehicle is controlled to place fabric onto the storage tank.

[0010] According to the storage cabinet fabric control method of the present invention, the step of determining the one-way fabric spreading time of the fabric spreading vehicle reciprocating above the storage cabinet based on the quality information, the flow rate information, and the number of fabric spreading passes includes:

[0011] Based on the quality information, the flow rate information, and the number of fabric passes, a target function is constructed.

[0012] Based on the preset constraints, the objective function is solved to obtain the objective function solution result;

[0013] The cloth-laying time corresponding to the solution of the objective function is taken as the one-way cloth-laying time.

[0014] According to an embodiment of the storage cabinet fabric control method of the present invention, the step of constructing an objective function based on the quality information, the flow rate information, and the number of fabric passes includes:

[0015] Based on the quality information, the flow rate information, and the number of fabric layers, determine the number of fabric layers for each type of material to be fabricated;

[0016] The objective function is determined based on the number of fabric layers.

[0017] According to the storage cabinet fabric control method of the present invention, the step of solving the objective function based on preset constraints to obtain the objective function solution result includes:

[0018] Determine the minimum point of the objective function under the preset constraints;

[0019] The result corresponding to the minimum point is used as the solution result of the objective function.

[0020] According to the storage cabinet fabric control method of the present invention, the step of determining the objective function based on the number of fabric layers includes:

[0021] Divide the number of fabric layers for each of the materials to be laid by 2 to obtain a first intermediate result;

[0022] Round each of the first intermediate results to the nearest integer to obtain the second intermediate result;

[0023] The objective function is obtained by summing the absolute values ​​of the differences between the first intermediate result and the second intermediate result.

[0024] According to the storage cabinet fabric control method of the present invention, the method for determining the preset constraint conditions includes:

[0025] The preset constraints are determined based on the total weight of the material, the discharge speed, the fabric length, and the outflow rate.

[0026] The total weight of the material is determined based on the total weight of the original material and the weight gain coefficient; the fabric length is determined based on the traveling speed of the fabric feeding platform and the one-way fabric feeding time; and the discharge speed is determined based on the bottom belt speed-frequency ratio and the bottom belt frequency.

[0027] According to an embodiment of the present invention, a storage tank material distribution control method includes a proximity switch provided at the discharge port of the storage tank, the initial material distribution position of the material distribution vehicle being located at the proximity switch, and controlling the material distribution vehicle to distribute material to the storage tank based on the one-way material distribution time, comprising:

[0028] The material-laying trolley is controlled to move away from the discharge port of the storage tank and lay material, and the running time is the one-way material-laying time;

[0029] Control the fabric carrier to run in reverse and spread the material until the fabric carrier reaches the proximity switch at the discharge port;

[0030] Repeat the above steps until the fabric is finished.

[0031] According to a second aspect of the present invention, a storage cabinet fabric control device includes:

[0032] The acquisition module is used to acquire quality information, flow rate information, and the number of fabric layers for each layer of the material to be laid.

[0033] The determining module is used to determine the one-way fabric laying time of the fabric laying vehicle reciprocating above the storage tank based on the quality information, the flow rate information, and the number of fabric laying channels;

[0034] The control module is used to control the fabric-laying vehicle to lay fabric on the storage tank based on the single-trip fabric-laying time.

[0035] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0036] This invention provides a method and apparatus for controlling the fabric distribution in a storage cabinet. The method includes: acquiring quality information, flow rate information, and the number of fabric distribution channels for each layer of materials to be distributed; determining the single-trip fabric distribution time of a fabric distribution trolley reciprocating above the storage cabinet based on the quality information, flow rate information, and number of fabric distribution channels; and controlling the fabric distribution trolley to distribute fabric in the storage cabinet based on the single-trip fabric distribution time. By determining the single-trip fabric distribution time of the fabric distribution trolley in a single operation based on the quality information, flow rate information, and number of fabric distribution channels for each layer of materials, compared to a half-cabinet or full-cabinet fabric distribution mode, the fabric distribution area of ​​the fabric distribution trolley can be reduced, thereby increasing the fabric thickness to ensure the outflow rate, while also improving the uniformity of various materials to be distributed and increasing production efficiency.

[0037] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a flowchart illustrating the storage cabinet fabric control method provided in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the arrangement of materials to be laid according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the structure of the storage cabinet fabric control device provided in an embodiment of the present invention. Detailed Implementation

[0042] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0045] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] One embodiment of the present invention, in conjunction with Figure 1 As shown, a method for controlling the fabric distribution of a storage cabinet is provided, comprising: acquiring quality information, flow information, and the number of fabric distribution channels for each layer of the materials to be distributed; determining the single-trip fabric distribution time of the fabric distribution vehicle reciprocating above the storage cabinet based on the quality information, the flow information, and the number of fabric distribution channels; and controlling the fabric distribution vehicle to distribute the fabric to the storage cabinet based on the single-trip fabric distribution time.

[0048] It should be noted that in existing technology, the storage tank consists of a head section, a body, a tail section, a conveyor belt, a material distribution trolley, and cable supports. The material distribution trolley reciprocates on the guide rails of the storage tank, evenly spreading the material fed by the upstream reciprocating belt material distribution machine layer by layer onto the bottom belt of the storage tank. When the material distribution trolley distributes material in strips, the material fed by the reciprocating belt material distribution machine travels from the tail to the head of the storage tank. When the material distribution trolley's discharge port reaches the head of the storage tank, the electrical control board installed on the material distribution trolley senses the proximity switch at this end. The electrical control cabinet receives the electrical signal from the proximity switch and controls the material distribution trolley to reverse its direction, and the conveyor belt also reverses its direction. This process continues until the material stored in the storage tank reaches a certain thickness. At this point, the material full photoelectric switch sends a signal, and the electrical control cabinet controls the feeding device to switch storage tanks. During the switching process, the conveyor belt reverses its direction, and the material distribution trolley must travel from the tail to the head of another storage tank. After the cabinet is replaced, the work procedure is the same as that of the previous cabinet.

[0049] The travel and start / stop position of the fabric trolley are controlled by a proximity switch installed in the middle of the cabinet, suitable for half-cabinet production mode of the storage cabinet. The storage cabinet discharges material after it is full, and the discharge flow rate can be adjusted by adjusting the frequency converter of the conveyor belt reducer. When discharging material from the storage cabinet, the rake shaft reducer and the conveyor belt reducer are started in sequence to evenly discharge the stored material.

[0050] Currently, when producing small batches of ribbed conveyor belts, manual pushing of materials from the bottom belt is often required to ensure stable material supply to downstream processes, which is quite time-consuming and labor-intensive. In this embodiment, the single-trip laying time of the laying cart is determined based on the quality and flow information of the material to be laid, as well as the number of laying passes for each layer of material. Compared to half- or full-cabinet laying modes, this reduces the laying area of ​​the laying cart, thereby increasing the fabric thickness to ensure sufficient outflow and improving the uniformity of various materials, thus increasing production efficiency.

[0051] It is understood that in this embodiment, the flexible fabric placement method can employ a combination of proximity switches and timer delays. One side of the fabric carriage is triggered to change direction by a proximity switch, while the other side is triggered to change direction by a fixed delay of the single-trip fabric placement time. The specific process is as follows:

[0052] (1) The storage tank can adopt the traditional material laying mode or the flexible material laying mode as needed. When the flexible material laying mode is selected, the percentage of material fed into the storage tank can be obtained by using the ratio of the time required for the material laying carriage to move from the numbered storage tank roller to the farthest end by the set reversing delay timer. When the traditional material laying mode is used, the material laying mode of "full tank / half tank" can be selected.

[0053] (2) The system automatically measures the complete travel time. The time it takes for the crane to touch the proximity switches on both sides of the storage tank is the complete single travel time of the crane.

[0054] (3) The delay of the flexible fabric can be obtained by combining the percentage of material fed into the storage tank and the single travel time of the crane.

[0055] (4) Use the calculated flexible fabric delay to control the reversing of the fabric trolley. In the flexible fabric mode (not the "full container / half container" mode), when the fabric trolley triggers the proximity switch on the discharge side, the system starts to reverse and triggers the timer at the same time. When the timer reaches the flexible fabric delay, the trolley reverses again. This process is repeated to achieve flexible fabric.

[0056] In flexible fabric applications, to ensure fabric uniformity, the fabric length can be adjusted by controlling the single-pass fabric application time. This, in turn, adjusts the number of fabric layers for various materials, making the number of fabric layers for each material as close to an even number as possible, thereby improving fabric uniformity. Specifically, refer to... Figure 1 As shown, the storage cabinet fabric control method includes:

[0057] S101: Obtain quality information, flow rate information, and the number of fabric layers for each layer of the material to be laid;

[0058] Based on actual production conditions, each type of material must pass through slicing, loosening electronic scale, loosening drum, hemp fiber removal machine, foreign object removal machine, lining material pre-weighing electronic scale, and loosening drum before entering the storage tank. The individual machines are connected via auxiliary equipment to convey loosened, rehydrated materials and add lining material before entering the storage tank.

[0059] Optional, use m i This indicates the quality information of the material to be laid, with Q0 representing the flow rate of the material measured by the loose electronic scale, and n. r This represents the number of fabric layers for each layer of material to be laid in the storage cabinet. It can be understood as the number of times the fabric carriage moves back and forth to lay the fabric, where i is the type of material to be laid.

[0060] S102: Determine the one-way fabric laying time of the fabric laying vehicle reciprocating above the storage tank based on the quality information, the flow rate information, and the number of fabric laying channels;

[0061] Among them, according to quality information m i Flow information Q0 and fabric row number n r Methods for determining the one-way fabric placement time t of the fabric carriage reciprocating above the storage tank may include:

[0062] Based on quality information m i Flow information Q0 and fabric row number n r Construct an objective function D; solve the objective function D based on preset constraints to obtain the objective function solution result; take the cloth laying time corresponding to the objective function solution result as the one-way cloth laying time t.

[0063]

[0064] Furthermore, methods for constructing the objective function D may include:

[0065] Based on quality information m i Flow information Q0 and fabric row number n r Determine the number of fabric layers n for each type of material to be fabricated. i Based on the number of fabric layers n i Determine the objective function D.

[0066] Optional, based on the number of fabric layers n i The method for determining the objective function D is as follows:

[0067] The number of fabric layers n for each type of material to be laid i Divide by 2 to obtain the first intermediate result n. i / 2;

[0068] For each first intermediate result n i Rounding down by 2 yields the second intermediate result N. i ;

[0069] The first intermediate result n i / 2 and the second intermediate result N i The objective function D is obtained by summing the absolute values ​​of the differences. Where:

[0070]

[0071]

[0072] Research has found that when laying materials flat, to ensure uniform distribution of the material—that is, even layering of all types of material across all cross-sections of the material pile in the storage container—the number of layers for each type of material must be close to an integer, and ideally even. This is because only when the number of layers is even can the uniform distribution of material across the cross-section be guaranteed. Figure 2 As shown, material A has one layer of fabric, which may result in uneven distribution as it is only distributed on the left side of the cross-section during the fabrication process. In contrast, material B has two layers of fabric, which results in a more even distribution from top to bottom.

[0073] It is understandable that the above refers to the number of fabric layers n. i The method of halving and rounding is to ensure that the number of fabric layers n for each type of material to be fabricated is... i Keep the number as close to even as possible to improve fabric uniformity.

[0074] Furthermore, in this embodiment of the invention, the method for solving the objective function D based on preset constraints to obtain the objective function solution result includes:

[0075] Determine the minimum point of the objective function D under the preset constraints;

[0076] The result corresponding to the minimum point is used as the solution to the objective function.

[0077] Understandably, the objective function D is a function of the single-pass fabric laying time t. When the value of the single-pass fabric laying time t is adjusted, the value of the objective function D will also change accordingly. The closer the value of D is to 0, the more likely it is that there are multiple layers n of fabric for various materials to be laid. i The closer to an even number, the more optimal the cloth placement method is to select a suitable single-pass cloth placement time t that minimizes the value of the objective function D.

[0078] Furthermore, the single-pass material placement time t needs to be adjusted within a specific range. If the single-pass material placement time t is too small, it will cause material blockage due to excessive material stacking. If the single-pass material placement time t is too large, it will cause the material to be too thin, leading to subsequent material interruption. Therefore, the adjustment range of the single-pass material placement time t needs to be limited. The range of values ​​for the single-pass material placement time t is mainly related to the material output situation and is limited by preset constraints.

[0079] According to an embodiment of the present invention, a method for determining preset constraints includes:

[0080] Based on the total weight M of the material and the discharge speed v out Fabric length l and outflow rate Q out Determine the preset constraints;

[0081] The total weight M of the materials is determined based on the total weight of the original materials and the weight gain coefficient k0; the fabric length l is determined based on the traveling speed v of the fabric distribution table. in The one-way material feeding time t is determined; the material output speed v out Based on the baseband speed-frequency ratio k1 and the baseband frequency f out Confirmed. Specifically, as shown in the formula below:

[0082]

[0083]

[0084] l = v in ·t

[0085] v out =k1·f out

[0086] Substituting, we get:

[0087]

[0088] Based on the above constraints, the preset constraint for the single-trip fabric placement time t is calculated as follows:

[0089]

[0090] Based on the above relationship, the quality information m of each material to be laid can be used... i Weight gain coefficient k0, bottom band speed-to-frequency ratio k1, bottom band frequency f out Driving speed v in and coming out traffic Q out The one-way fabric travel time t can then be calculated. Among these factors are the weight gain coefficient k0, the bottom belt speed-to-frequency ratio k1, and the travel speed v. in It can be calculated based on the normal leaf group; when experimenting with small leaf groups, it can be calculated based on the material mass m of each variety. i The baseband frequency f outand coming out traffic Q out The adjustment range of the fabric delay t is determined, and then combined with the flow rate information Q0 measured by the loose electronic scale and the number of fabric passes n of each layer of material to be laid in the storage tank. r The range of the objective function D is obtained, and the single-pass fabric time t corresponding to the minimum value of the objective function D is the optimal flexible fabric delay.

[0091] S103: Based on the single-trip fabric laying time, control the fabric laying vehicle to lay fabric on the storage tank.

[0092] Specifically, first, control the placing trolley to move away from the discharge port of the storage tank and place the material, with the running time being the one-way material placement time; then control the placing trolley to move in the opposite direction and place the material until the placing trolley reaches the proximity switch of the discharge port; repeat the above steps until the material placement is completed.

[0093] In another embodiment of the present invention, a storage cabinet fabric control device is provided, such as... Figure 3 As shown, it includes:

[0094] The acquisition module 301 is used to acquire quality information, flow information, and the number of fabric layers of various materials to be laid;

[0095] The determining module 302 is used to determine the one-way fabric laying time of the fabric laying vehicle reciprocating above the storage tank based on the quality information, the flow information and the number of fabric laying channels;

[0096] The control module 303 is used to control the material-laying vehicle to lay material on the storage tank based on the single-trip material-laying time.

[0097] It should be noted that the storage cabinet fabric control device provided in this embodiment of the invention can execute the storage cabinet fabric control method described in any of the above embodiments during specific operation, which will not be elaborated in this embodiment.

[0098] Embodiments of the present invention provide a method and apparatus for controlling the fabric distribution in a storage cabinet. The method includes: acquiring quality information, flow rate information, and the number of fabric distribution channels for each layer of materials to be distributed; determining the single-trip fabric distribution time of a fabric distribution vehicle reciprocating above the storage cabinet based on the quality information, flow rate information, and number of fabric distribution channels; and controlling the fabric distribution vehicle to distribute fabric in the storage cabinet based on the single-trip fabric distribution time. By determining the single-trip fabric distribution time of the fabric distribution vehicle in a single operation based on the quality information, flow rate information, and number of fabric distribution channels for each layer of materials to be distributed, compared to a half-cabinet or full-cabinet fabric distribution mode, the fabric distribution area of ​​the fabric distribution vehicle can be reduced, thereby increasing the fabric thickness to ensure the outflow rate and improving the uniformity of various materials to be distributed.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of bin material control, characterized by, The application relates to a method for controlling a material distribution vehicle to distribute material in a storage cabinet, comprising the following steps: acquiring mass information and flow information of a plurality of materials to be distributed, and the number of distribution channels of each layer of the materials to be distributed; determining a single distribution time of the material distribution vehicle to reciprocally distribute the materials in the storage cabinet according to the mass information, the flow information and the number of distribution channels; controlling the material distribution vehicle to distribute the materials in the storage cabinet based on the single distribution time; the step of determining the single distribution time of the material distribution vehicle to reciprocally distribute the materials in the storage cabinet according to the mass information, the flow information and the number of distribution channels comprises the following steps: constructing a target function according to the mass information, the flow information and the number of distribution channels; solving the target function based on a preset constraint condition to obtain a target function solution result; taking the distribution time corresponding to the target function solution result as the single distribution time; the step of constructing the target function according to the mass information, the flow information and the number of distribution channels comprises the following steps: determining the number of distribution layers of each of the materials to be distributed according to the mass information, the flow information and the number of distribution channels; determining the target function based on the number of distribution layers; the step of solving the target function based on the preset constraint condition to obtain a target function solution result comprises the following steps: determining a minimum point of the target function under the preset constraint condition; taking the result corresponding to the minimum point as the target function solution result; a proximity switch is arranged at a discharge port of the storage cabinet, an initial distribution position of the material distribution vehicle is located at the proximity switch, and the step of controlling the material distribution vehicle to distribute the materials in the storage cabinet based on the single distribution time comprises the following steps: controlling the material distribution vehicle to run and distribute in a direction away from the discharge port of the storage cabinet, and the running time is the single distribution time; controlling the material distribution vehicle to reversely run and distribute until the material distribution vehicle reaches the proximity switch at the discharge port; repeating the above steps until the distribution is completed.

2. The magazine control method according to claim 1, wherein the step of determining the target function based on the number of distribution layers comprises the following steps: dividing the number of distribution layers of each of the materials to be distributed by 2 to obtain a first intermediate result; carrying out integer rounding on each of the first intermediate results to obtain a second intermediate result; summing the absolute values of the differences between the first intermediate results and the second intermediate results to obtain the target function.

3. The bin inventory control method of claim 1, wherein, a method for determining the preset constraint condition comprises the following steps: determining the preset constraint condition according to a total material weight, a discharge speed, a distribution length and a cabinet discharge flow; wherein the total material weight is determined according to a total weight of original materials and a weight increase coefficient; the distribution length is determined according to a running speed of the material distribution vehicle and the single distribution time; and the discharge speed is determined according to a ratio of a bottom belt speed to a bottom belt frequency.

Images