A method and device for controlling the entry of tobacco thread into a cabinet

Abstract

The present invention relates to a method and device for controlling the uniform feeding of tobacco thread into a cabinet, comprising a feeding unit, a distribution crane unit, a material spreading crane unit and a storage cabinet, wherein the distribution crane unit is provided with a detection drive component, and the material spreading crane unit is provided with a detection and early warning component. The present invention utilizes an incoming material detection lens to detect the cross-section of the incoming material pile each time it is sown in a strip, and transmits the result to the control system, calculates the spacing D of the distribution crane stepping forward or backward, and spreads the incoming material evenly into the storage cabinet. The material height detection photoelectric tube on the material spreading crane unit detects the height of the falling material pile and transmits the result to the control system, and the control system calculates the difference in the height of each falling material. If the difference exceeds 0.05m, the control system controls the early warning device to send an early warning signal, prompting maintenance personnel to conduct on-site inspection and maintenance, thereby realizing the incoming material flow rate and the automatic detection and early warning function of the incoming material detection lens, so that the material is finally spread evenly and flatly into the storage cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco shred production, and in particular to a method and device for controlling the uniform feeding of shredded tobacco into a cabinet. Background Art

[0002] In the tobacco production process, tobacco storage is a crucial step, facilitating subsequent processing of various formulations. The equipment typically used to feed tobacco into a cabinet consists of a feed conveyor, a distribution crane, a spreading crane, and a storage cabinet, or a combination of these. Currently, the most common and effective method for controlling feed uniformity is to ensure the uniformity and stability of the incoming material flow at the front end is controlled by an electronic belt scale. This is followed by a vibrating conveyor, a belt conveyor, a storage cabinet, a distribution crane, and a spreading crane in a strip-like feeding method. The distribution crane's stepping distance is controlled by limit switches or laser ranging. The goal is to ensure that the material is delivered to the spreading crane in a stepwise, step-by-step manner, in accordance with the distribution crane's incoming material flow rate. Proximity switches at the cabinet end control the spreading crane's direction, and the instantaneous amount of material placed into the cabinet is controlled by the spreading crane's operating speed. This combination of factors ensures the highest possible uniformity and smoothness of tobacco entering the cabinet. In actual production, it is difficult to achieve uniform and smooth delivery of materials into the cabinet. How to transport materials evenly and smoothly into the wire storage cabinet has always troubled the industry, especially the equipment process mentioned above. The problem is more obvious. After the materials are put into the cabinet, the width and height of the slopes on both sides of the adjacent sowing strips are different. Moreover, due to fluctuations in incoming materials, displacement of limit switches or fluctuations in laser ranging data, the distribution crane step spacing changes slightly, proximity switch displacement or equipment performance changes, etc., more problems arise. Operators and maintenance personnel need to follow the materials for supervision and regular inspections to adjust the switch position to control the uniformity and flatness of the materials entering the cabinet. Summary of the Invention

[0003] The object of the present invention is to provide a method and device for controlling the entry of tobacco thread into a cabinet, so as to solve the technical problem of uneven and uneven tobacco material entering the cabinet.

[0004] The specific technical solutions of the tobacco thread and tobacco cabinet feeding control method and device of the present invention are as follows:

[0005] A tobacco thread and tobacco cabinet feeding control device comprises a feeding unit for sequentially conveying materials, a distribution crane unit and a material spreading crane unit, wherein the material spreading crane unit transports the materials and spreads them flatly into the cabinet;

[0006] The distribution crane unit includes a distribution crane, a distribution crane belt, a distribution crane track and a limit assembly. The distribution crane reciprocates on the distribution crane track. The distribution crane belt is arranged on the upper side of the distribution crane. The limit assembly is installed on the distribution crane track. The distribution crane unit is used to transport the incoming materials to the material laying crane unit.

[0007] The distribution crane unit is provided with a detection drive assembly, which includes an incoming material detection lens and a driver. The incoming material detection lens is installed at the material outlet of the distribution crane to detect the cross-section of the incoming material pile and transmit it to the control system; the control system calculates the spacing of the distribution crane's stepping forward or stepping backward through simulation, and controls the distribution crane to step forward or step backward through the driver.

[0008] Preferably, the feeding unit includes a feeding conveyor and a lower hopper, and the lower hopper is installed at the discharge port of the feeding conveyor and is used to transfer the incoming materials to the distribution crane unit.

[0009] Preferably, the material paving crane unit includes a material paving crane, a material paving crane belt and a material paving crane track. The material paving crane belt is arranged on the upper side of the material paving crane, and the material paving crane reciprocates on the material paving crane track to evenly spread the incoming materials into the storage cabinet.

[0010] Preferably, the paving crane unit is provided with a detection and early warning component, which includes a material height detection photoelectric tube and an early warning device. The material height detection photoelectric tube is installed at the material discharge port of the paving crane to detect the height of the falling material pile and transmit it to the control system. The control system calculates the difference according to the height of the falling material pile and controls the early warning device to send a warning signal.

[0011] The present invention also provides a method for controlling the entry of tobacco thread into a cabinet, comprising the following steps:

[0012] S1, the material is transferred to the distribution driving unit through the feeding unit, and the material is transported to the distribution driving belt through the feeding conveyor and the lower hopper to form a row sowing incoming material pile;

[0013] S2. The distribution driving belt transports the incoming material pile of the sowing strip to the detection area. The incoming material detection lens detects the cross-section of the incoming material pile of each sowing strip and transmits it to the control system. The control system simulates the cross-section of the material pile as an isosceles trapezoid and calculates the spacing D of the next step forward or step backward of the distribution driving. The spacing D of the step forward or step backward of the distribution driving controls the delivery of the incoming material pile of the sowing strip to the position on the paving driving belt. The incoming material pile of the sowing strip on the distribution driving belt is transported to the paving driving belt to form a sowing strip pile;

[0014] S3, the distribution crane of the distribution crane unit reciprocates on the distribution crane track according to the calculated step-forward or step-back spacing D, and evenly transports the incoming material pile on the distribution crane belt to different positions on the paving crane belt;

[0015] S4. The paving crane of the paving crane unit reciprocates at a uniform speed on the paving crane track, and at the same time evenly spreads the sowing material pile on the paving crane belt into the storage cabinet.

[0016] Preferably, in steps S2 and S3, when the control system simulates the cross-section of the incoming material pile of the sowing strip as an isosceles trapezoid, the cross-section of the incoming material pile of the sowing strip is simulated as an isosceles trapezoid with an upper side length of a, a lower side length of b, and a height of h. The spacing D of the distribution vehicle stepping forward or backward is calculated based on the simulated isosceles trapezoid. The material flow changes, and the material in the incoming material pile of the sowing strip on the distribution vehicle belt simulates changes in the height and side length of the trapezoid. The distance d by which the lower side on the same side of the trapezoid exceeds the upper side length changes. The control system controls the spacing D of the distribution vehicle stepping forward or backward to change, so as to keep the sowing strip pile evenly spread in the storage cabinet.

[0017] Preferably, in order to make the sowing material pile evenly and flatly spread into the storage cabinet, the calculation method of the distance D of the distribution driving step forward or backward in the said step is to keep the material flow unchanged, keep the cross-sectional information of the two adjacent sowing material piles entering the cabinet unchanged, the control system receives the cross-sectional information of the sowing material pile, and simulates the sowing material pile into two completely identical isosceles trapezoids, and simulates the first isosceles trapezoid with an upper side length of a1, a lower side length of b1, and a height of h1. The second isosceles trapezoid has an upper side length of a2, a lower side length of b2, and a height of h2. The horizontal distance between the upper sides of the first isosceles trapezoid and the second isosceles trapezoid is d1. The calculation formula of the step forward or step backward distance D is:

[0018] D=0.5a1+d1+0.5a2;

[0019] When a=a1=a2, d=d1, the calculation formula for allocating the driving forward or backward distance D in steps S2 and S3 is:

[0020] D=0.5a1+d1+0.5a2=a+d.

[0021] Preferably, in step S4, the pile of strip-seeded materials evenly spread on the paving conveyor moves with the paving conveyor to the discharge port of the paving conveyor and is spread into the storage cabinet to form a pile of blanking materials. The material height detection photoelectric tube at the discharge port of the paving conveyor detects the height of the blanking material pile in the storage cabinet below and transmits it to the control system. The control system calculates the difference in the height of each blanking material. If the difference exceeds 0.05m, the control system controls the early warning device to send an early warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance.

[0022] Preferably, the material piles on the paving driving belt are evenly spread into the storage cabinet, and the material height detection photoelectric tube continuously detects the height of each group of blanking material piles in the storage cabinet and transmits it to the control system. After the control system records the height values ​​of the blanking material piles of two adjacent groups of sown materials, it automatically calculates the difference between groups. If the difference exceeds 0.05m, the control system controls the early warning device to send out an early warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance.

[0023] The method and device for controlling the uniform feeding of tobacco into a cabinet for tobacco thread making according to the present invention have the following advantages:

[0024] 1. The present invention uses an incoming material detection lens to detect the cross-section of the incoming material pile each time it is sown, and transmits it to the control system, calculates and distributes the spacing D of the crane stepping forward or backward, so that the material is evenly spread in the storage cabinet; uses the material height detection photoelectric tube on the material spreading crane unit to detect the height of the falling material pile and transmits it to the control system, and the control system calculates the difference in the height of each falling material. If the difference exceeds 0.05m, the control system controls the early warning device to send an early warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance, thereby realizing the material flow and the automatic detection and early warning function of the incoming material detection lens, so that the material is finally evenly and flatly spread in the storage cabinet.

[0025] 2. The present invention has low implementation costs, simple control logic, and high uniformity and flatness of incoming materials. The flatness deviation of tobacco entering the storage cabinet can be controlled to within 0.02m. The method of the present invention can be widely applied in controlling the entry of tobacco thread and tobacco into storage cabinets, as well as in controlling the entry of tobacco leaf storage cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a device for controlling the uniform feeding of tobacco into a cabinet for making tobacco threads according to the present invention;

[0027] Figure 2 This is a first simulated ladder diagram of the control system of the present invention;

[0028] Figure 3 This is a second simulated trapezoidal schematic diagram of the control system of the present invention;

[0029] Explanation of the marks in the figure: 1. Feeding unit; 11. Feeding conveyor; 12. Discharging hopper; 2. Distribution crane unit; 21. Distribution crane; 22. Distribution crane belt; 23. Distribution crane track; 24. Limiting assembly; 3. Material laying crane unit; 31. Material laying crane; 32. Material laying crane belt; 33. Material laying crane track; 4. Storage cabinet; 5. Incoming material detection lens; 6. Material height detection photoelectric tube. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0031] Example 1

[0032] like Figure 1 The figure shows a tobacco thread making tobacco uniform feeding control device of the present invention, comprising a feeding unit 1, a distribution crane unit 2, a material laying crane unit 3 and a storage cabinet 4. The distribution crane unit is provided with a detection drive component, and the material laying crane unit is provided with a detection and early warning component;

[0033] The feeding unit 1 includes a feeding conveyor 11 and a lower hopper 12 . The lower hopper 12 is installed at the discharge port of the feeding conveyor 11 and is used to transfer the incoming materials to the distribution crane unit 2 .

[0034] The distribution crane unit 2 includes a distribution crane 21, a distribution crane belt 22, a distribution crane track 23, and a limit assembly 24. The distribution crane 21 reciprocates on the distribution crane track 23. The distribution crane belt 22 is arranged on the upper side of the distribution crane 21. The limit assembly 24 is installed on the distribution crane track 23. The distribution crane unit 2 is used to transport the incoming materials to the material laying crane unit 3.

[0035] The material spreading crane unit 3 includes a material spreading crane 31, a material spreading crane belt 32 and a material spreading crane track 33. The material spreading crane belt 32 is arranged on the upper side of the material spreading crane 31. The material spreading crane 31 reciprocates on the material spreading crane track 33 to spread the material evenly into the storage cabinet 4.

[0036] The specific implementation methods and functions of the distribution crane unit 2, material laying crane unit 3 and storage cabinet 4 used in the present invention have been applied for in the prior patents CN115285727A, a tobacco silk thread storage cabinet distribution crane positioning control device and method, and CN115072395A, a tobacco silk thread storage cabinet material laying crane and control method.

[0037] On this basis, in order to achieve the greatest possible uniformity and flatness of the tobacco material entering the cabinet, the present invention provides a detection drive assembly on the distribution crane unit 2, which includes an incoming material detection lens 5 and a driver. The material detection lens 5 is installed at the discharge port of the distribution crane belt 22 to detect the cross-section of the incoming material pile in the strip sowing and transmit it to the control system; the control system calculates the spacing of the distribution crane stepping forward or backward through simulation, and controls the driver to drive the distribution crane 21 forward or backward;

[0038] A detection and early warning component is provided on the paving driving unit 3, and the detection and early warning component includes a material height detection photoelectric tube 6 and an early warning device. The material height detection photoelectric tube 6 is installed at the discharge port of the paving driving belt 32, and detects the total height of the falling material pile in real time and transmits it to the control system. The control system calculates the difference according to the total height of the falling material pile, and controls the early warning device to issue an early warning signal when it exceeds the limit.

[0039] Example 2

[0040] A method for controlling the entry of tobacco thread into a cabinet comprises the following steps:

[0041] S1, the material is transferred to the distribution driving unit 2 through the feeding unit 1, and the material is transported to the distribution driving belt 22 through the feeding conveyor 11 and the lower hopper 12 to form a row sowing material pile;

[0042] S2, the distribution driving belt 22 transports the incoming material pile of the strip sowing to the detection area, the incoming material detection lens 5 detects the cross-section of the incoming material pile of each strip sowing and transmits it to the control system, the control system simulates the incoming material pile of the strip sowing as an isosceles trapezoid with an upper side length of a, a lower side length of b, and a height of h, the distance d that the lower side length on the same side of the isosceles trapezoid exceeds the upper side length, and calculates the spacing D of the distribution driving 21 for the next step forward or step backward, the spacing D of the distribution driving 21 for stepping forward or step backward controls the delivery of the incoming material pile of the strip sowing to the position on the paving driving belt 32, and transports the incoming material pile of the strip sowing on the distribution driving belt 22 to the paving driving belt 32 to form a strip sowing material pile;

[0043] S3, the distribution crane 21 of the distribution crane unit 2 reciprocates on the distribution crane track 23 according to the calculated step-forward or step-back spacing D, and at the same time transports the incoming sowing material pile on the distribution crane belt 22 to the paving crane unit 3, and transfers the incoming sowing material pile to the paving crane belt 32. The position of the sowing material pile is determined by the step-forward or step-back spacing D of the distribution crane 21;

[0044] In steps S2 and S3, in order to ensure that the position where the material falls on the paving driving belt during the next strip sowing is accurate, the calculation method of the distance D of the allocated driving 21 stepping forward or backward is as follows: the incoming material flow remains unchanged, and the information of the cross-section of the two adjacent strip sowing material piles entering the cabinet remains unchanged. The control system receives the information of the cross-section of the strip sowing material pile, and simulates the strip sowing incoming material pile into two completely identical isosceles trapezoids. The upper side length of the first isosceles trapezoid is a1, the lower side length is b1, and the height is h1. The upper side length of the second isosceles trapezoid is a2, the lower side length is b2, and the height is h2. The horizontal distance between the upper sides of the first isosceles trapezoid and the second isosceles trapezoid is d1. Since the drop point of each strip sowing is the midpoint of the upper side length of the trapezoid, the distance D of the allocated driving 21 stepping forward or backward is the distance between the midpoints of the upper sides of the two trapezoids, such as Figure 2 As shown,

[0045] That is, the calculation formula for the distance D between each allocated vehicle 21 steps forward or backward is:

[0046] D=0.5a1+d1+0.5a2;

[0047] In order to further make the pile of materials evenly and flatly spread into the storage cabinet, as long as the trapezoid of the two adjacent sowing drops is below the intersection of the two adjacent hypotenuses, the area S of the triangle 下 , and the triangular area S formed by the intersection points 上 The areas are equal, and the excess material falling on the adjacent sides of the two sowing strips can fill the trough between the two sowing strips, so that the material falling in the subsequent storage cabinet 4 remains uniform and flat. Therefore, the calculation method of the spacing D of the allocated driving 21 stepping forward or backward is: the control system receives the information of the cross-section of the sowing material pile, and simulates the sowing material pile into two trapezoids with equal side lengths and heights. The upper side length of the first isosceles trapezoid is a1, the lower side length is b1, and the height is h1. The upper side length of the second isosceles trapezoid is a2, the lower side length is b2, and the height is h2. The horizontal spacing between the upper sides of the first isosceles trapezoid and the second isosceles trapezoid is d1. When a=a1=a2, d=d1, as Figure 3 shown

[0048] The calculation formula for allocating the driving forward or backward distance D in step S2 is:

[0049] D=0.5a1+d1+0.5a2=a+d;

[0050] The control system controls the distribution carriage 21 to step forward or backward according to the spacing D, locates the position of the incoming material on the paving carriage belt for the next sowing, and transports the incoming material pile on the distribution carriage belt 22 to the paving carriage belt 32 for sowing, forming a sowing material pile again.

[0051] The incoming material flow rate changes, and the incoming material pile on the distribution driving belt 22 simulates the change in the height and side length of the trapezoid. The distance d where the lower side of the trapezoid exceeds the upper side on the same side changes. The control system controls the distribution driving belt 21 to change the distance D of the step forward or step backward, so as to keep the material pile evenly sown and spread into the storage cabinet.

[0052] S4. The paving crane 31 of the paving crane unit 3 reciprocates at a uniform speed on the paving crane track 33, and at the same time evenly spreads the sowing material pile on the paving crane belt 32 into the storage cabinet.

[0053] In step S4, the incoming material pile evenly spread on the paving conveyor belt 32 moves with the paving conveyor belt 32 to the discharge port of the paving conveyor belt 32, and is spread into the storage cabinet 4 to form a blanking material pile; the material height detection photoelectric tube 6 at the discharge port of the paving conveyor belt 32 detects the height of each group of blanking material piles in the storage cabinet 4 below, and transmits it to the control system. After the control system records the height values ​​of two adjacent groups of blanking materials, it automatically calculates the difference between the groups. If the difference exceeds 0.05m, it means that the incoming material flow has changed, causing the material pile height to change. The control system controls the early warning device to send a warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance, thereby realizing the automatic detection and early warning function of the incoming material flow.

[0054] In this embodiment, the height deviation of the flatness of tobacco entering the storage cabinet can be controlled to 0.02m, which is 80% higher than the 0.1m flatness level of the original control method.

[0055] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A tobacco thread tobacco cabinet entry control device, characterized in that: It comprises a feeding unit (1) for sequentially conveying materials, a distribution crane unit (2) and a material spreading crane unit (3), wherein the material spreading crane unit (3) transports the materials and spreads them flatly into a storage cabinet (4); The distribution crane unit (2) comprises a distribution crane (21), a distribution crane belt (22), a distribution crane track (23) and a limiting assembly (24); the distribution crane (21) reciprocates on the distribution crane track (23); the distribution crane belt (22) is arranged on the upper side of the distribution crane (21); the limiting assembly (24) is installed on the distribution crane track (23); the distribution crane unit (2) is used to transport incoming materials to the material laying crane unit (3); The distribution crane unit (2) is provided with a detection drive assembly, the detection drive assembly including an incoming material detection lens (5) and a driver, the incoming material detection lens (5) being installed at the material outlet of the distribution crane belt (22) to detect the cross section of the incoming material pile and transmit it to the control system; the control system calculates the stepping or stepping back spacing of the distribution crane (21) through simulation, and controls the distribution crane (21) to step forward or step back through the driver; A method for controlling the entry of tobacco thread into a cabinet comprises the following steps: S1, the material is transferred to the distribution driving unit (2) through the feeding unit (1), and the material is transported to the distribution driving belt (22) through the feeding conveyor (11) and the lower hopper (12), forming a row sowing material pile; S2, the distribution driving belt (22) transports the incoming material pile for strip sowing to the detection area, the incoming material detection lens (5) detects the cross section of the incoming material pile for each strip sowing and transmits it to the control system, the control system simulates the cross section of the material pile as an isosceles trapezoid, and calculates the spacing D of the distribution driving belt (21) for the next step forward or step backward, and controls the distribution driving belt (21) to move the incoming material pile for strip sowing to the position on the paving driving belt (32), and transports the incoming material pile for strip sowing on the distribution driving belt (22) to the paving driving belt (32) to form a strip sowing material pile; S3, the distribution crane (21) of the distribution crane unit (2) reciprocates on the distribution crane track (23) according to the calculated step-forward or step-back spacing D, and evenly transports the row-sown material pile on the distribution crane belt (22) to different positions of the paving crane belt (32); S4, the paving crane (31) of the paving crane unit (3) reciprocates at a uniform speed on the paving crane track (33), and simultaneously spreads the sowing material pile on the paving crane belt (32) uniformly into the storage cabinet; In steps S2 and S3, when the control system simulates the cross section of the incoming material pile of the sowing strip as an isosceles trapezoid, the cross section of the incoming material pile of the sowing strip is simulated as an isosceles trapezoid with an upper side length of a, a lower side length of b, and a height of h. The spacing D of the stepping or stepping back of the distribution vehicle is calculated based on the simulated isosceles trapezoid. The material flow rate changes, and the height and side length of the trapezoid are simulated to change in the incoming material pile of the sowing strip on the distribution vehicle belt (22). The distance d by which the lower side length on the same side of the trapezoid exceeds the upper side length changes. The control system controls the spacing D of the stepping or stepping back of the distribution vehicle (21) to change, so as to keep the incoming material pile of the sowing strip evenly spread in the storage cabinet. In order to make the sowing material pile evenly and flatly spread in the storage cabinet, the calculation method of the step-by-step or step-back spacing D of the distribution vehicle (21) in the step is as follows: keep the material flow unchanged, keep the cross-sectional information of the two adjacent sowing material piles entering the cabinet unchanged, the control system receives the cross-sectional information of the sowing material pile, simulates the sowing material pile into two completely identical isosceles trapezoids, and simulates the first isosceles trapezoid with an upper side length of a1, a lower side length of b1, and a height of h1. The second isosceles trapezoid has an upper side length of a2, a lower side length of b2, and a height of h2. The horizontal spacing between the upper sides of the first isosceles trapezoid and the second isosceles trapezoid is d1. The step-by-step or step-back spacing D is calculated as follows: D=0.5a1+d1+0.5a2; When a=a1=a2, d=d1, the calculation formula for the forward or backward distance D of the allocated vehicle (21) in steps S2 and S3 is: D=0.5a1+d1+0.5a2=a+d; In step S4, the pile of strip-sown materials evenly spread on the paving conveyor belt (32) moves with the paving conveyor belt (32) to the discharge port of the paving conveyor belt (32) and is spread into the storage cabinet (4) to form a pile of blanking materials. The material height detection photoelectric tube (6) at the discharge port of the paving conveyor belt (32) detects the height of the blanking material pile in the storage cabinet (4) below and transmits it to the control system. The control system calculates the difference in the height of each blanking material. If the difference exceeds 0.05m, the control system controls the early warning device to send an early warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance.

2. The tobacco thread and tobacco cabinet feeding control device according to claim 1, characterized in that: The feeding unit (1) comprises a feeding conveyor (11) and a lower hopper (12). The lower hopper (12) is installed at the discharge port of the feeding conveyor (11) and is used to transfer incoming materials to the distribution crane unit (2).

3. The tobacco thread and tobacco cabinet feeding control device according to claim 1, characterized in that: The material spreading crane unit (3) comprises a material spreading crane (31), a material spreading crane belt (32) and a material spreading crane track (33). The material spreading crane belt (32) is arranged on the upper side of the material spreading crane (31). The material spreading crane (31) reciprocates on the material spreading crane track (33) to evenly spread the incoming materials into the storage cabinet (4).

4. The tobacco thread tobacco cabinet feeding control device according to claim 3, characterized in that: The material laying crane unit (3) is provided with a detection and warning component, which includes a material height detection photoelectric tube (6) and an early warning device. The material height detection photoelectric tube (6) is installed at the material discharging port of the material laying crane belt (32) to detect the height of the material pile and transmit it to the control system. The control system calculates the difference according to the height of the material pile and controls the early warning device to send out an early warning signal.

5. The tobacco thread and tobacco cabinet feeding control device according to claim 1, characterized in that: The material pile on the material spreading driving belt (32) is evenly spread into the storage cabinet, and the material height detection photoelectric tube (6) continuously detects the height of each group of material piles in the storage cabinet (4) and transmits it to the control system. After the control system records the height values ​​of the material piles of two adjacent groups of sowing materials, it automatically calculates the difference between the groups. If the difference exceeds 0.05m, the control system controls the early warning device to send out an early warning signal to prompt the maintenance personnel to conduct on-site inspection and maintenance.

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