Distributing system and tobacco shred production system

Abstract

The utility model provides a material distribution system and a cut tobacco production system. The material distribution system comprises a storage cabinet; the material distributing device is arranged above the storage cabinet in a step-by-step moving mode in the first direction and is configured to distribute materials into the storage cabinet in a strip-shaped mode in the second direction perpendicular to the first direction when the material distributing device stays at the material distributing position after moving by a step distance every time; materials are divided into a plurality of material layers to be laid into the storage cabinet through repeated stepping movement of the material distributing device in the storage cabinet in the first direction; and the control device is coupled with the material distributing device and is configured to control the material distributing device to lay the next material layer according to the flatness information of the top ends of the materials in the storage cabinet after each material layer is laid in the storage cabinet by the material distributing device. According to the technical scheme, the flatness information of the top ends of the materials and the material stacking condition can be obtained in real time, the material distribution device is adjusted in time, and the flatness of the top ends of the materials is improved after a next material layer is laid.

Description

Technical Field

[0001] The present disclosure relates to a material distribution device, and in particular to a material distribution system and a tobacco production system. Background Art

[0002] In the material feeding process of some process production lines, step-by-step feeding is usually adopted. The current step-by-step feeding scheme has the problem of large material gaps, and a wavy material top will appear on the top of the material pile. The height difference of the material top is large, which can easily lead to uneven material discharge and reduce the processing quality.

[0003] For example, in the tobacco production system, a spreading solution that can be used is to use a spreading car as a spreading device for strip spreading. The tobacco leaves or tobacco are transported to the spreading car by a distribution car, and the spreading car spreads the tobacco down into the storage cabinet in strips. The main function of the storage cabinet is to temporarily store or mix the materials and spread the materials from the discharge port. The overall working mode is in-and-out. In actual production, after the tobacco material is strip-sown, the material strip state is high in the middle and low on both sides. The tobacco material is unevenly distributed, and the uneven spreading will cause fluctuations in the discharge amount of the storage cabinet, affecting the stability of the subsequent process and affecting the process quality.

[0004] Uneven discharge of tobacco from the storage cabinet can easily lead to waste of tobacco or insufficient supply. This will directly affect the production efficiency and product quality of subsequent sections. If the tobacco is too dense in some areas, it may cause blockage or jamming of the discharge port, causing the production line to stop or reduce output. On the other hand, if the tobacco is sparse in some areas, the subsequent sections may not be able to obtain enough raw materials, resulting in delays in production plans or insufficient output. Uneven distribution will also increase the maintenance and adjustment workload of the production line. Since uneven distribution may cause tobacco accumulation or shifting in the storage cabinet, the production line operator may need to frequently check and adjust the distribution of the distribution in the storage cabinet to ensure the uniformity of the discharge. This will increase labor costs and production time, and increase production line downtime and production costs. Utility Model Content

[0005] The purpose of the present disclosure is to provide a material distribution system and a tobacco production system, which aims to solve the problem that the material gap of the step-by-step material distribution is large, and a wavy material top appears on the top of the material pile, resulting in uneven material discharge, affecting the uniformity of material discharge in the subsequent process section and reducing the processing quality.

[0006] According to a first aspect of the present disclosure, there is provided a material distribution system, comprising: a storage cabinet; a material distribution device, which is arranged above the storage cabinet so as to be step-movable along a first direction and is configured to distribute strip material into the storage cabinet along a second direction perpendicular to the first direction while staying at a distribution position after moving a step distance each time, and to distribute material into the storage cabinet in multiple material layers by repeatedly moving the material distribution device in the first direction in the storage cabinet in a step-by-step manner; and a control device, which is coupled to the material distribution device and is configured to control the material distribution device to distribute the next material layer according to the flatness information of the top of the material in the storage cabinet after each material layer is distributed in the storage cabinet.

[0007] In the material distribution system of some embodiments, the control device is configured to obtain the flatness information of the top of the material in the storage cabinet after laying each material layer according to the material position when the material distribution device laid one or more previous material layers; or the material distribution system includes a detection device, and the detection device is configured to detect the flatness information of the top of the material in the storage cabinet after the material distribution device lays each material layer in the storage cabinet, and the control device is coupled to the detection device and the material distribution device, and is configured to control the material distribution device to lay the next material layer according to the flatness information detected by the detection device.

[0008] In the material distribution system of some embodiments, in the storage cabinet, the top of the material in the vertical section extending along the first direction forms a wavy curve, and the flatness information includes the positions of adjacent vertices of the wavy curve; the control device is configured to calculate the distribution position of the material distribution device when the material distribution device lays the next material layer along the first direction according to the positions of the adjacent vertices, and control the material distribution device to lay the next material layer according to the distribution position.

[0009] In the material distribution system of some embodiments, the control device is configured to calculate the starting material distribution position and stepping distance for the material distribution device to lay the next material layer along the first direction according to the positions of the adjacent vertices, and control the material distribution device to start strip distribution from the starting material distribution position, and to carry out strip distribution each time the material distribution device moves one of the stepping distances to reach the next material distribution position until the next material layer is laid.

[0010] In the distribution system of some embodiments, the stepping distance is a constant; the control device selects two adjacent vertices that are farthest from each other from a preset number of vertices of the side wall of the wavy curve on the same side closest to the storage cabinet, and the starting distribution position of the next material layer along the first direction is configured so that the vertex of the material along the first direction after the distribution device distributes the material in strips at the starting distribution position is located between the two adjacent vertices that are farthest from each other.

[0011] In the material distribution system of some embodiments, the starting material distribution position along the first direction of the next material layer is configured so that the vertices of the material along the first direction after the material distribution device distributes the material in strips at the starting material distribution position are located at the center of the two adjacent vertices that are farthest from each other among the preset number of vertices.

[0012] In the distribution system of some embodiments, the flatness information of the top of the material includes the distance between the adjacent vertices; along the first direction, the distribution position of the distribution device when laying the next material layer is configured so that the vertices of the material along the first direction after the distribution device distributes the material in strips at the distribution position are between two adjacent vertices whose distance between the adjacent vertices is greater than a first preset distance.

[0013] In the material distribution system of some embodiments, along the first direction, the distribution position of the distribution device when laying the next material layer is configured so that the vertices of the material along the first direction after the distribution device distributes the material in strips at the distribution position are at the centers of two adjacent vertices whose distance between the adjacent vertices is greater than a first preset distance.

[0014] In the material distribution system of some embodiments, when the distance between every two adjacent vertices of the wavy curve is less than a second preset distance, the material distribution device is controlled with initial setting parameters to lay the next material layer.

[0015] A second aspect of the present disclosure provides a tobacco production system, comprising the material distribution system provided by the first aspect of the present disclosure, wherein the material is tobacco.

[0016] The material distribution system provided by the present disclosure includes a storage cabinet and a material distribution device arranged above the storage cabinet. The material distribution device is configured to distribute strip material into the storage cabinet along a second direction perpendicular to the first direction A when it stays at the material distribution position after moving a step distance. A control device is provided to be coupled with the material distribution device. The material distribution device is controlled to lay the next material layer according to the flatness information of the top of the material after the material distribution device lays a material layer in the storage cabinet. This technical solution is conducive to timely adjusting the material distribution device according to the flatness information of the top of the material and the material stacking situation, so as to improve the flatness of the top of the material after laying the next material layer.

[0017] The tobacco production system disclosed in the present invention has the advantages of the material distribution system disclosed in the present invention.

[0018] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0020] Figure 1 is a schematic diagram of a storage cabinet of a material distribution system and materials laid therein in an embodiment of the present disclosure, which shows that the vertices of the wavy curve at the top of the material are evenly distributed and the distance between adjacent vertices is a first length D1;

[0021] Figure 2 The schematic diagram of the storage cabinet of the material distribution system and the materials laid therein according to an embodiment of the present disclosure shows that the material distribution device is Figure 1 On the basis of the above, the center of two adjacent vertices of the wavy curve close to the side wall of the storage cabinet is taken as the initial material laying position, and the material state after laying the next material layer with the first length D1 as the constant stepping distance;

[0022] Figure 3 The schematic diagram of the storage cabinet of the material distribution system and the materials laid therein according to an embodiment of the present disclosure shows that the material distribution device is Figure 1 Based on the distribution position of the strip distribution material, the vertex of the material along the first direction is Figure 1 The material state after laying a material layer when the distance between adjacent vertices of the wavy curve is greater than the first preset distance between the centers of two adjacent vertices;

[0023] Figure 4 A schematic diagram of a storage cabinet of a material distribution system and materials laid therein according to another embodiment of the present invention is shown. Figure 1 On the basis of the above, the side wall of the wavy curve close to the side wall of the storage cabinet is taken as the initial material laying position, and the material state after laying a material layer with the first length D1 as the constant step distance.

[0024] Figures 1 to 4 In the figure, each reference numeral represents:

[0025] 1. Storage cabinet; 2. Material; 3. Material distribution track; 4. Distribution device; A. First direction; D1. First length; D2. Second length; a1. First vertex; a2. Second vertex; a3. Third vertex; b1. Fourth vertex; b2. Fifth vertex. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0027] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0029] In the description of the present disclosure, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words 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, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0030] The embodiment of the present disclosure provides a material distribution system, including: a storage cabinet 1, a material distribution device and a control device. The material distribution device is arranged above the storage cabinet 1 so as to be step-movable along a first direction A, and is configured to distribute strip material into the storage cabinet 1 along a second direction perpendicular to the first direction A when it stays at the distribution position after moving a step distance. The material 2 is laid into the storage cabinet 1 in multiple material layers by repeatedly moving the material distribution device along the first direction A in the storage cabinet 1. The control device is coupled to the material distribution device, and is configured to control the material distribution device to lay the next material layer according to the flatness information of the top of the material in the storage cabinet 1 after the material distribution device lays a material layer in the storage cabinet 1. The material distribution system may also include a distribution device to transport the material 2 to the distribution device through the distribution device.

[0031] In some embodiments, the control device described above can be implemented as a general processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present disclosure.

[0032] The material distribution system of the embodiment of the present application is conducive to timely adjusting the material distribution device according to the flatness information of the material top and the stacking condition of the material 2, so as to improve the flatness of the material top after laying the next material layer, effectively solve the problem of uneven stacking of the material 2 in the storage cabinet 1, improve product quality, and improve the space utilization rate of the storage cabinet 1. The control device is coupled with the material distribution device, which is conducive to realizing automatic control of the material distribution device, and is also conducive to improving the accuracy of material distribution, reducing manual intervention, and thus improving material distribution efficiency.

[0033] In some embodiments, the control device is configured to obtain the flatness information of the top of the material in the storage cabinet 1 according to the material position when the material distribution device laid the previous one or more material layers after laying each material layer. Alternatively, the material distribution system includes a detection device. The detection device is configured to detect the flatness information of the top of the material in the storage cabinet 1 after the material distribution device lays each material layer in the storage cabinet 1. The control device is coupled with the detection device and the material distribution device, and is configured to control the material distribution device to lay the next material layer according to the flatness information detected by the detection device.

[0034] The detection device is conducive to obtaining the flatness information of the top of the material in real time and monitoring the stacking of the material 2 in the storage cabinet 1. The control device is coupled with the detection device and the material distribution device, which is conducive to further realizing the automatic control of the material distribution device and improving the accuracy and efficiency of the automatic control.

[0035] In some embodiments, in the storage cabinet 1, the top of the material in the vertical section extending along the first direction A forms a wavy curve, and the flatness information includes the positions of adjacent vertices of the wavy curve. The control device is configured to calculate the laying position of the laying device when the laying device lays the next material layer along the first direction A according to the positions of the adjacent vertices, and control the laying device to lay the next material layer according to the laying position.

[0036] For example, the material distribution device releases the material 2 at the distribution position, and the material 2 forms a vertex of a wave-shaped curve just below or near the distribution position along the first direction A. The control device can calculate the distribution position through a programmable logic controller.

[0037] The control device can more accurately grasp the fluctuation of the wavy curve according to the positions of adjacent vertices of the wavy curve, which is beneficial to the calculation of the material position of the material distribution device when laying the next material layer, so as to flatten the top of the material, which is beneficial to the uniform distribution of the material 2 in the storage cabinet 1, avoiding too large an upper and lower amplitude difference at the top of the material, and is beneficial to improving the uniformity of the material discharge from the storage cabinet 1.

[0038] In some embodiments, the control device is configured to calculate the starting cloth position and stepping distance for the cloth device to lay the next material layer along the first direction A based on the positions of adjacent vertices, and control the cloth device to start strip laying from the starting cloth position, and to lay strips each time it moves a stepping distance to the next cloth position until the next material layer is laid.

[0039] For example, Figures 1 to 4 In the embodiment, the starting cloth distribution position may be close to the left side wall of the storage cabinet 1 along the first direction A, or may be close to the right side wall of the storage cabinet 1 along the first direction A.

[0040] By mastering the positions of the adjacent vertices at the top of the material layer, the control device can accurately calculate the starting position and stepping distance of the material laying device for laying the next material layer, which is conducive to improving the accuracy of the material layer laying position and the stepping of the material laying device, making the material 2 laid more evenly and improving the effect of smoothing the wavy curve at the top of the material. In addition, setting the control device to adjust the starting position and stepping distance of the material laying device according to the flatness information is conducive to realizing automatic control, improving operating efficiency, reducing manual intervention, and achieving higher production efficiency and quality requirements.

[0041] In some embodiments, the stepping distance is a constant value. For example, the length of the interior of the storage cabinet 1 along the first direction A may be an integer multiple of the stepping distance. The stepping distance of the material distribution device for laying the next material layer may be equal to the stepping distance of the last material layer laid.

[0042] The control device selects two adjacent vertices that are farthest from each other from a preset number of vertices of the side wall of the wavy curve on the same side closest to the storage cabinet 1. The starting distribution position of the next material layer along the first direction A is configured so that the vertex of the material 2 after the strip distribution by the distribution device at the starting distribution position along the first direction A is located between the two adjacent vertices that are farthest from each other.

[0043] For example, Figures 2 to 4 As shown, the preset number is set to 3. If the next material layer is laid from the left side of the storage cabinet, then before the material distribution device lays the next material layer, the detection device detects the distances between adjacent vertices of the three vertices (the first vertex a1, the second vertex a2, and the third vertex a3) close to the left side wall of the storage cabinet 1, and the control device compares the distance value between the first vertex a1 and the second vertex a2 and the distance value between the second vertex a2 and the third vertex a3, and selects the two adjacent vertices with the largest two distance values, and sets the starting material distribution position between the two adjacent vertices.

[0044] by Figure 2 For example, the distance value between the first vertex a1 and the second vertex a2 is equal to the distance value between the second vertex a2 and the third vertex a3, and the starting cloth position is configured so that the vertex of the material 2 along the first direction A after the cloth device lays the material in strips at its starting cloth position is located between the first vertex a1 and the second vertex a2, and the cloth device starts to lay the next material layer at a constant step distance after laying the material in strips at the starting cloth position.

[0045] by Figure 4 For example, the distance between the first vertex a1 and the fourth vertex b1 is less than the distance between the fourth vertex b1 and the second vertex a2. Figure 4 Based on the material state shown, the starting cloth position is configured so that the vertex of the material 2 along the first direction A after the cloth device lays the strip at its starting cloth position is located between the fourth vertex b1 and the second vertex a2, and the cloth device starts to continue laying the next material layer at a constant stepping distance after the strip is laid at the starting cloth position.

[0046] This setting determines the wider concave position of the wavy curve at the top of the material, so that the control device uses the next material layer to accurately fill the wavy curve, gradually reducing the high and low amplitudes of the wavy curve, improving the efficiency of flattening the wavy curve, and helping to speed up the realization of uniform material distribution. In addition, the step distance is a fixed value, which is conducive to simplifying the calculation and operation of the material distribution device, improving the stability and reliability of the material distribution, and further improving the efficiency of the material distribution device in laying the material.

[0047] In some embodiments, the starting distributing position of the next material layer along the first direction A is configured so that the vertices of the material 2 along the first direction A after the distributing device distributes the material 2 in strips at the starting distributing position are located at the center of two adjacent vertices that are farthest from each other within a preset number of vertices.

[0048] The lowest point of the wavy curve formed at the top of the material is generally located at the center of two adjacent vertices. Based on the shape characteristics of the wavy curve, the vertex of material 2 of the strip cloth at the starting cloth position is set at the center of two adjacent vertices, which is conducive to better filling the top of the material layer and thus improving the uniformity of the cloth.

[0049] In some embodiments, the flatness information of the top of the material includes the distance between adjacent vertices. Along the first direction A, the distribution position of the distribution device when laying the next material layer is configured so that the vertex of the material 2 after the distribution device distributes the strips at the starting distribution position along the first direction A is between two adjacent vertices whose distance between adjacent vertices is greater than the first preset distance.

[0050] In the actual production process, there will be differences in the distance between adjacent vertices at the top of the material. The material 2 is relatively flat when the distance between adjacent vertices is less than the first preset distance, while the material 2 is not flat enough when the distance between adjacent vertices is greater than the first preset distance. This setting is conducive to the control device controlling the cloth position of the cloth device according to the distance between every two adjacent vertices, arranging the next material layer at the position where the material 2 is not uniform enough, and is conducive to the control device to flexibly adjust the cloth position of the cloth device according to different material layer conditions, refine the cloth position, and achieve more precise cloth control. By selecting a suitable first preset distance, the required material flatness can be achieved.

[0051] In some embodiments, along the first direction A, the spreading position of the spreading device when laying the next material layer is configured so that the distance between the vertices of the material 2 along the first direction A after the spreading device spreads the material in strips at the spreading position is greater than the first preset distance between the centers of two adjacent vertices.

[0052] This setting is conducive to the material distribution device releasing the most material 2 at the lowest point of the wavy curve, thereby increasing the coverage density of the material, and is conducive to improving the flatness of the wavy curve on the top of the material, making the laid material 2 more uniform.

[0053] In some embodiments, when the distance between every two adjacent vertices of the wavy curve is less than the second preset distance, the material distribution device is controlled to lay the next material layer with the initial setting parameters.

[0054] The distance between each two adjacent vertices of the wavy curve is less than the second preset distance, which indicates that the material 2 has reached the required uniformity. By selecting a suitable second preset distance, the required material flatness can be achieved. This setting is conducive to controlling the number of times the material distribution device lays a material layer.

[0055] The embodiment of the present disclosure also provides a tobacco production system, including the material distribution system of the embodiment of the present disclosure. The material 2 of the tobacco production system is tobacco.

[0056] In actual production, the state of tobacco strips after sowing is high in the middle and low on both sides, the distribution of material 2 is uneven, the efficiency of storing material 2 in the storage cabinet is low, and the uneven distribution of material will cause fluctuations in the output of the storage cabinet, affecting the stability of the subsequent processes and affecting the process quality. The use of a distribution system is conducive to maintaining the uniformity of the distribution, reducing labor costs and improving production efficiency.

[0057] According to the following Figures 1 to 4 The material distribution system and tobacco production system of the embodiments of the present disclosure are described in detail.

[0058] like Figure 1 As shown, the inner wall section of the storage cabinet 1 along the first direction A is rectangular, and the top of the storage cabinet 1 is open. The material distribution device includes a material distribution crawler 3, and the material distribution crawler 3 releases the material 2 into the storage cabinet 1 through the opening. A distribution device 4 is arranged above the material distribution device, and the distribution device 4 conveys the material 2 such as tobacco leaves or tobacco shreds to the material distribution device, and the material distribution crawler 3 of the material distribution device distributes the material 2 downward into the storage cabinet 1 in a strip shape. In this embodiment, the material 2 is tobacco shreds, and the first direction A is the left-right direction. The material distribution device starts to step from the left inner wall of the storage cabinet 1, and the stepping distance is the first length D1 (D1 is a constant value). After each step, it stops at the material distribution position to release the material 2, and the released material 2 forms a strip material pile in the storage cabinet 1 along the left-right direction, which is high in the middle and low on both sides. After the material distribution device moves to the right inner wall of the storage cabinet 1, it returns to the left inner wall to start laying the next material layer. The material 2 forms a wavy curve at the top of the material in the storage cabinet 1. In other embodiments, the material distribution device may also start laying the next material layer directly on one inner wall of the storage cabinet 1 after moving to the inner wall of the side, without having to move the material distribution device back to the opposite inner wall.

[0059] Before the material distribution device lays the next material layer, the material distribution system detects the flatness information of the top of the material laid in the storage cabinet 1 through the detection device, including detecting the position of the adjacent vertices of the top of the material. The control device selects the three leftmost vertices of the top of the material laid in the storage cabinet 1 to compare the distances between the adjacent vertices. If the comparison result is that the distances between two adjacent vertices are equal and both equal to the first length D1, the control device selects the starting material distribution position of the next material layer so that the vertex along the first direction A of the material 2 (strip material pile) laid by the material distribution device at the starting material distribution position is located between the two adjacent vertices closer to the left inner wall of the storage cabinet 1: the first vertex a1 and the second vertex a2.

[0060] like Figure 2 As shown, the starting position of the material laying device for laying the next material layer is set so that the vertex of the material 2 (strip material pile) laid by the material laying device at the starting position along the first direction A is located at the center of the first vertex a1 and the second vertex a2, and the center corresponds to Figure 2 The fourth vertex b1 in the middle. The material distributing device starts to distribute the material in strips from the starting distribution position, and then distributes the next material layer along the first direction A with the first length D1 as the stepping distance, so that each strip material pile of the next material layer fills the lowest point of the wave-shaped curve formed by the top of the material already distributed in the storage cabinet 1. By analogy, until the detection device detects that the distance between every two adjacent vertices is less than the second preset distance (the second preset distance is, for example, one quarter of the first length D1), the control device controls the material distributing device to distribute the material from the distribution position corresponding to the first vertex a1 along the first direction A as the starting distribution position, and distributes the next material layer from left to right with the first length D1 as the stepping distance.

[0061] Or, if Figure 3 As shown, before the distributing device lays the next material layer, the detection device of the distributing system detects the flatness information of the top of the material already laid in the storage cabinet 1, and the flatness information includes the distance between adjacent vertices of the detected material top. The distributing position of the distributing device when laying the next material layer is configured so that the distance between the vertices of the material 2 along the first direction A after the distributing device distributes the strips at the distributing position is greater than the center of two adjacent vertices whose distance between adjacent vertices is greater than a first preset distance (the first preset distance is, for example, one quarter of the first length D1). The control device controls the distributing device to distribute the strips at each distributing position along the first direction A, so as to arrange the strip material pile between two adjacent vertices whose distance between adjacent vertices is greater than the first preset distance. For example, as Figure 3 As shown, when the material distribution device arranges the next material layer, the vertex of the strip material pile arranged at the first material distribution position is the fourth vertex b1, the vertex of the strip material pile arranged at the second material distribution position is the fifth vertex b2, and the fourth vertex b1 and the fifth vertex b2 are both located at the center of the adjacent vertices at the top of the laid material.

[0062] like Figure 4 In the illustrated embodiment, before the material distribution device lays the next material layer, the material distribution system detects the flatness information of the top of the material laid in the storage cabinet 1 through the detection device, including detecting the positions of the adjacent vertices of the material top. The preset number is set to 3, and the control device selects the three leftmost vertices of the top of the material laid in the storage cabinet 1 to compare the distances between the adjacent vertices. If the comparison result is that the distances between the adjacent vertices are equal and equal to the first length D1, the control device selects the starting material distribution position of the next material layer between the two adjacent vertices of the laid strip material pile closer to the left inner wall of the storage cabinet 1: the first vertex a1 and the second vertex a2. The step distance is the first distance D1.

[0063] After the next material layer is laid, the fourth vertex b1 is located between the first vertex a1 and the second vertex a2 and is closer to the first vertex a1.

[0064] exist Figure 4 On the basis of the material state shown, before the distribution device lays another material layer, the control device again compares the distances between adjacent vertices of the three vertices (the first vertex a1, the fourth vertex b1, and the second vertex a2) close to the left side wall of the storage cabinet 1, and the distance between the fourth vertex b1 and the second vertex a2 is greater than the distance between the first vertex a1 and the fourth vertex b1. When the control device selects the starting distribution position of another material layer, the vertex of the strip material pile laid at the starting distribution position is between the fourth vertex b1 and the second vertex a2, and controls the distribution device to lay another material layer from the starting distribution position at a constant step distance (first length D1).

[0065] When the control device selects two adjacent vertices with the farthest distance from each other from a preset number of vertices of the side wall of the wavy curve on the same side closest to the storage cabinet 1, the preset number of vertices can be more, such as 4, 5 or 6.

[0066] In other embodiments not shown in the figure, the material distribution system and the tobacco production system may further include a height detection device to detect the height information of the material 2 in the storage cabinet 1. When the height of the stacked material 2 is greater than a preset height value, the control device controls the material distribution device to stop.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection requested by the present disclosure.

Claims

1. A material distribution system, characterized in that: include: Storage cabinet (1); A material distributing device is arranged above the storage cabinet (1) so as to be step-movable along a first direction (A), and is configured to distribute the material in strips into the storage cabinet (1) along a second direction perpendicular to the first direction (A) when it stops at a distributing position after moving a step distance each time, and the material distributing device repeatedly moves step-by-step along the first direction (A) in the storage cabinet (1) to distribute the material (2) into the storage cabinet (1) in multiple material layers; and A control device is coupled to the material distribution device and is configured to control the material distribution device to lay the next material layer according to the flatness information of the top of the material in the storage cabinet (1) after the material distribution device lays one material layer in the storage cabinet (1).

2. The material distribution system according to claim 1, characterized in that: The control device is configured to obtain the flatness information of the top of the material in the storage cabinet (1) after laying each material layer according to the material laying position when the material laying device laid one or more previous material layers; or The material distribution system comprises a detection device, wherein the detection device is configured to detect the flatness information of the top of the material in the storage cabinet (1) after the material distribution device has laid a material layer in the storage cabinet (1); the control device is coupled to the detection device and the material distribution device, and is configured to control the material distribution device to lay the next material layer according to the flatness information detected by the detection device.

3. The material distribution system according to claim 1 or 2, characterized in that: In the storage cabinet (1), the top of the material in a vertical section extending along the first direction (A) forms a wavy curve, and the flatness information includes positions of adjacent vertices of the wavy curve; The control device is configured to calculate the laying position of the material laying device when the material laying device lays the next material layer along the first direction (A) according to the positions of the adjacent vertices, and control the material laying device to lay the next material layer according to the laying position.

4. The material distribution system according to claim 3, characterized in that: The control device is configured to calculate the starting laying position and stepping distance of the laying device for laying the next material layer along the first direction (A) according to the positions of the adjacent vertices, and control the laying device to start strip laying from the starting laying position, and to carry out strip laying every time it moves the stepping distance to the next laying position until the next material layer is laid.

5. The material distribution system according to claim 4, characterized in that: The stepping distance is a fixed value; The control device selects two adjacent vertices that are farthest from each other from a preset number of vertices of the side wall of the wavy curve on the same side closest to the storage cabinet (1), and the starting distribution position of the next material layer along the first direction (A) is configured so that the vertex of the material (2) after the strip distribution by the distribution device at the starting distribution position along the first direction (A) is located between the two adjacent vertices that are farthest from each other.

6. The material distribution system according to claim 5, characterized in that: The starting distributing position of the next material layer along the first direction (A) is configured so that the vertex of the material (2) after the distributing device distributes the material in strips at the starting distributing position along the first direction (A) is located at the center of the two adjacent vertices that are farthest from each other within the preset number of vertices.

7. The material distribution system according to claim 3, characterized in that: The flatness information of the top of the material includes the distance between the adjacent vertices; Along the first direction (A), the spreading position of the spreading device when laying the next material layer is configured so that the vertices of the material (2) after the spreading device spreads the material in strips at the spreading position along the first direction (A) are between two adjacent vertices whose distance between the adjacent vertices is greater than a first preset distance.

8. The material distribution system according to claim 7, characterized in that: Along the first direction (A), the spreading position of the spreading device when laying the next material layer is configured so that the vertex of the material after the spreading device spreads the material in strips at the spreading position along the first direction (A) is at the center of two adjacent vertices whose distance between the adjacent vertices is greater than a first preset distance.

9. The material distribution system according to claim 3, characterized in that: When the distance between every two adjacent vertices of the wavy curve is less than the second preset distance, the material distribution device is controlled to lay the next material layer according to the initial setting parameters.

10. A tobacco production system, characterized in that: A material distribution system comprising any one of claims 1 to 9, wherein the material (2) is tobacco shreds.

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