Tobacco leaf slicing device

Abstract

The invention discloses a tobacco leaf slicing device. The device comprises a feeding mechanism; the first lifting mechanism is matched with the discharging end of the feeding mechanism; the first shifting mechanism is arranged above the first lifting mechanism and is used for spreading and loosening the tobacco leaves; the first lifting mechanism is provided with a flow dividing area used for dividing the spread and loosened tobacco leaves, part of the tobacco leaves are conveyed to the discharging end, and part of the tobacco leaves fall downwards to be loosened and separated. The second lifting mechanism is partially located below the first lifting mechanism and used for sequentially receiving the tobacco leaves falling downwards from the distribution area and the tobacco leaves conveyed by the discharging end of the first lifting mechanism in the conveying direction; and the second material stirring mechanism is arranged above the second lifting mechanism and is used for spreading, loosening and separating the received tobacco leaves. Tobacco leaves which are preliminarily spread and loosened are divided into two paths to be conveyed to different positions of the second lifting mechanism through the flow dividing area, the situation that the two paths of tobacco leaves are accumulated and blocked in front of the second material shifting mechanism is avoided, and the tobacco leaf separation effect can be improved through combination of beating loosening and spreading loosening.

Description

Technical Field

[0001] The present invention belongs to the field of tobacco equipment, and more specifically, relates to a tobacco leaf slicing device. Background Art

[0002] In the domestic tobacco industry, for the grading and sorting of tobacco leaves, the tobacco leaves need to be decomposed from the stacked state of the tobacco bales into a single and loose state, and then visual inspection is carried out. Generally, the tobacco bales are stratified into tobacco leaf layers of a certain thickness. Since the moisture content of the tobacco leaf layers is low and they are compressed tightly, if they are directly loosened into single pieces, no matter what method is used, it is very easy to cause breakage of the tobacco leaves and large material losses.

[0003] In the prior art, to solve the above technical problems, two-stage feeding devices are provided on the tobacco leaf thinning and dispersing device, and the stacked tobacco leaf layers are gradually thinned and dispersed in two steps, improving the uniformity of the tobacco leaf thinning. However, for the tobacco leaf layers with low moisture content and tight compression, there are still many problems such as many tobacco leaves not being able to be loosened into single tobacco leaves, large material losses, and inconvenience for later grading and sorting. It is necessary to further improve the separation degree of the tobacco leaf slicing, and there is easily material blockage in the tobacco leaf transportation between the two-stage feeding devices, affecting the thinning and dispersing of the tobacco leaves by the next-stage feeding device.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art. The purpose is to provide a tobacco leaf slicing device, in which part of the second lifting mechanism is arranged below the first lifting mechanism. By setting a diversion area on the first lifting mechanism, the tobacco leaves thinned by the first feeding mechanism fall onto the second lifting mechanism and are slapped and loosened into slices. Another part of the tobacco leaves is conveyed to different positions of the second lifting mechanism through the discharge end of the first lifting mechanism, avoiding the accumulation of the two-way tobacco leaves on the second lifting mechanism and avoiding the accumulation of the tobacco leaves in front of the second feeding mechanism, which affects the slicing of the tobacco leaves. It can also combine various loosening methods to improve the slicing effect of the tobacco leaves.

[0006] Another purpose of the present invention is to provide a tobacco leaf slicing device. By setting a material leakage area in the feeding mechanism, the tobacco leaves with a thinner layer fall downward through the material leakage area and are slapped and loosened into slices by gravity. The tobacco leaves with a thicker layer are thinned by the first feeding mechanism after passing through, and then the two-way tobacco leaves are conveyed again through the second feeding mechanism for further thinning and slicing. It can separate the thinner tobacco leaves in the feeding mechanism, avoiding the accumulation of the thinner tobacco leaves with the thicker tobacco leaves for thinning and extrusion, resulting in broken leaves, reducing the fragments generated in the tobacco leaf slicing process, and improving the slicing effect of the tobacco leaves.

[0007] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a tobacco leaf slicing device, including:

[0008] Feeding mechanism for conveying tobacco leaves;

[0009] The first lifting mechanism is cooperated with the feeding mechanism to receive the tobacco leaves conveyed by the feeding mechanism and convey them upward;

[0010] The first material distributing mechanism is arranged above the first lifting mechanism and is used to cooperate with the first lifting mechanism to thin and loosen the tobacco leaves; the first lifting mechanism is provided with a diversion area for diverting the thinned and loosened tobacco leaves, part of the tobacco leaves are conveyed to the discharge end of the first lifting mechanism, and part of the tobacco leaves fall downward to be loosened and sliced;

[0011] The second lifting mechanism is partially located below the first lifting mechanism and is used to sequentially receive the tobacco leaves falling from the diversion area and the tobacco leaves conveyed by the discharge end of the first lifting mechanism along the conveying direction;

[0012] The second material distributing mechanism is arranged above the second lifting mechanism and is arranged higher than the first lifting mechanism, and is used to cooperate with the second lifting mechanism to loosen and slice the received tobacco leaves again.

[0013] Further, the diversion area is arranged below the first material distributing mechanism or behind the first material distributing mechanism in the conveying direction, and the diversion area has a plurality of rotating rollers arranged at intervals along the conveying direction.

[0014] Further, the conveyor belt of the second lifting mechanism extends obliquely upward, the feeding end of the second lifting mechanism is located below the first lifting mechanism, and the discharge end of the second lifting mechanism is located above the first lifting mechanism;

[0015] There is a certain distance between the discharge end of the first lifting mechanism and the conveyor belt of the second lifting mechanism, and the tobacco leaves conveyed by the discharge end of the first lifting mechanism fall onto the second lifting mechanism to be loosened and sliced;

[0016] Preferably, rake nails are provided on the conveyor belts of the first lifting mechanism and the second lifting mechanism.

[0017] Further, a material leakage area is provided in the path of the feeding mechanism feeding the first lifting mechanism, and is used to make the tobacco leaves with a thickness lower than the preset thickness fall and be loosened and sliced during the process of conveying the tobacco leaves to the first lifting mechanism;

[0018] The tobacco leaf slicing device further includes:

[0019] The material receiving and conveying mechanism is located below the feeding mechanism and the feeding end of the first lifting mechanism, and is used to receive and convey the tobacco leaves falling from the material leakage area; the discharge end of the material receiving and conveying mechanism is cooperated with the feeding end of the second lifting mechanism to convey the tobacco leaves to the second lifting mechanism.

[0020] Further, the material leakage area is arranged at the discharge end of the feeding mechanism and / or between the feeding mechanism and the first lifting mechanism, and the conveyor belt of the material receiving and conveying mechanism extends below the material leakage area; the conveying speed of the first lifting mechanism is greater than that of the feeding mechanism;

[0021] Preferably, a plurality of rotating rollers are arranged at intervals along the conveying direction at the discharge end of the feeding mechanism, and the distance between the plurality of rotating rollers is adjustable; there is a certain gap between the discharge end of the feeding mechanism and the feeding end of the first lifting mechanism.

[0022] Further, the feeding mechanism extends horizontally, the conveyor belt of the material receiving and conveying mechanism extends obliquely upward along the conveying direction, and the discharge end of the material receiving and conveying mechanism extends beyond the gap to above the feeding end of the second lifting mechanism.

[0023] Further, the included angle a between the conveyor belt of the material receiving and conveying mechanism and the horizontal plane is smaller than the included angles b and c between the conveyor belts of the first lifting mechanism and the second lifting mechanism and the horizontal plane respectively;

[0024] Preferably, the included angle b between the conveyor belt of the first lifting mechanism and the horizontal plane is 60°-75°, and the included angle c between the conveyor belt of the second lifting mechanism and the horizontal plane is 63°-70°.

[0025] Further, the minimum material passing gap between the first material deflecting mechanism and the conveyor belt of the first lifting mechanism is greater than the minimum material passing gap between the second material deflecting mechanism and the conveyor belt of the second lifting mechanism;

[0026] Preferably, the first material deflecting mechanism and the second material deflecting mechanism are deflecting belt devices or deflecting roller devices.

[0027] Further, it includes a plurality of second material deflecting mechanisms, which are arranged at intervals above the conveyor belt of the second lifting mechanism along the conveying direction;

[0028] The plurality of second material deflecting mechanisms are all arranged on the second lifting mechanism higher than the first lifting mechanism.

[0029] Further, it further includes: an automatic separating and peeling device, which is connected to the feeding end of the feeding mechanism and is used for stratifying the tobacco leaves and conveying them to the feeding mechanism.

[0030] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0031] (1) By arranging part of the second lifting mechanism below the first lifting mechanism and setting a diversion area on the first lifting mechanism, the present invention can divert the tobacco leaves thinned by the first feeding mechanism. A part of the tobacco leaves directly fall from the diversion area onto the second lifting mechanism, and can be loosened and fragmented by being slapped by gravity. Another part of the tobacco leaves continue to rise and are conveyed from the discharge end of the first lifting mechanism to the second lifting mechanism at a higher position, avoiding the two-way tobacco leaves being directly conveyed and stacked on the second lifting mechanism. The two-way tobacco leaves are sequentially conveyed to the second feeding mechanism of the second lifting mechanism for thinning and fragmenting, which can prevent the tobacco leaves from accumulating in front of the second feeding mechanism and affecting the fragmentation of the tobacco leaves. Moreover, by combining various ways of loosening and fragmenting, the fragmentation effect of the tobacco leaves can be improved, and the fragments generated during the fragmentation process of the tobacco leaves can be reduced.

[0032] (2) The present invention can loosen the original tobacco leaves from the state of being compacted and adhered with a certain layer thickness to single tobacco leaves, with high automation, high efficiency, good stability, and can reduce labor, providing favorable conditions for subsequent sorting of tobacco leaves.

[0033] (3) By setting a material leakage area, during the process of the feeding mechanism feeding materials to the first lifting mechanism, the tobacco leaves with a relatively thin layer fall downward through the material leakage area and are loosened and fragmented by gravity, and are conveyed through the second feeding mechanism for re-thinning and fragmenting; the tobacco leaves with a relatively thick layer are thinned by the first feeding mechanism after passing through the material leakage area, and then are conveyed through the second feeding mechanism for re-thinning and fragmenting, which can separate the relatively thin tobacco leaves from the feeding mechanism, avoiding the accumulation of relatively thin tobacco leaves with relatively thick tobacco leaves for thinning and extrusion to cause broken leaves, reducing the fragments generated during the fragmentation process of the tobacco leaves, and improving the fragmentation effect of the tobacco leaves.

[0034] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Description of the Drawings

[0035] As a part of the present invention, the accompanying drawings are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0036] Figure 1 is a schematic diagram of a tobacco leaf fragmenting device of the present invention.

[0037] In the figure: 1. Feeding mechanism; 11. Material leakage area; 12. First roller; 2. First lifting mechanism; 21. Diversion area; 3. Material receiving and conveying mechanism; 4. Second lifting mechanism; 5. First feeding mechanism; 6. Second feeding mechanism; 7. Support frame; 71. First support; 72. Second support; 73. Third support.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing 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, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] As Figure 1 shown, the present invention provides a tobacco leaf slicing device, which can loosen a tobacco leaf layer with a certain layer thickness in a caked and adhered state into single tobacco leaves, with high automation, high efficiency, good stability, and good slicing and loosening effects, providing favorable conditions for subsequent sorting of tobacco leaves.

[0043] The tobacco leaf slicing device includes a feeding mechanism 1, a first lifting mechanism 2, a second lifting mechanism 4, a first material distributing mechanism 5, and a second material distributing mechanism 6.

[0044] The feeding mechanism 1 is used for conveying tobacco leaves and can convey a tobacco leaf layer with a certain layer thickness.

[0045] The first lifting mechanism 2 cooperates with the discharge end of the feeding mechanism 1, and is used to receive the tobacco leaf layer conveyed by the discharge end of the feeding mechanism 1 and convey the tobacco leaf layer upward. The first material distributing mechanism 5 is arranged above the first lifting mechanism 2, and is used to cooperate with the first lifting mechanism 2 to thin, loosen and slice the tobacco leaf layer, so as to reduce the layer thickness of the tobacco leaf layer. The first lifting mechanism 2 is provided with a diversion area 21, which is used to divert the thinned and loosened tobacco leaves, and part of the tobacco leaves are conveyed to the discharge end of the first lifting mechanism 2, and part of the tobacco leaves fall downward and are beaten and loosened and sliced.

[0046] Part of the second lifting mechanism 4 is located below the first lifting mechanism 2, and is used to sequentially receive the tobacco leaves falling downward from the diversion area 21 of the first lifting mechanism 2 and the tobacco leaves conveyed by the discharge end of the first lifting mechanism 2 along the conveying direction and continue to convey them. The second material distributing mechanism 6 is arranged above the second lifting mechanism 4, and is arranged higher than the first lifting mechanism 2, and is used to cooperate with the second lifting mechanism 4 to thin, loosen and slice the received tobacco leaves again.

[0047] In the present invention, by arranging part of the second lifting mechanism 4 below the first lifting mechanism 2 and setting a diversion area 21 on the first lifting mechanism 2, the thinned tobacco leaves by the first material distributing mechanism 5 can be diverted. Part of the tobacco leaves directly fall from the diversion area 21 onto the second lifting mechanism 4, and can be beaten, loosened and sliced by relying on gravity. The other part of the tobacco leaves continue to rise and are conveyed from the discharge end of the first lifting mechanism 2 to the second lifting mechanism 4 at a higher position, avoiding the two-way tobacco leaves being directly conveyed and stacked on the second lifting mechanism 4. The two-way tobacco leaves are sequentially conveyed to the second material distributing mechanism 6 of the second lifting mechanism 4 for thinning and slicing, which can avoid the accumulation of tobacco leaves in front of the second material distributing mechanism 6 and affect the slicing of tobacco leaves. It can also combine various ways of loosening and slicing to improve the slicing effect of tobacco leaves and reduce the fragments generated during the slicing process of tobacco leaves.

[0048] The diversion area 21 is arranged below the first material distributing mechanism 5 or behind the conveying direction of the first material distributing mechanism 5, that is, on the discharge side of the first material distributing mechanism 5. It can divert and fall during the process of the first material distributing mechanism 5 thinning the tobacco leaf layer, or can also divert and fall after the first material distributing mechanism 5 thins the tobacco leaf layer. The diversion area 21 has a plurality of rotating rollers arranged at intervals along the conveying direction.

[0049] The first lifting mechanism 2 includes a conveyor belt, and the conveyor belt is inclined upward and extends at intervals in sequence with the plurality of rotating rollers in the diversion area 21. The gaps between the plurality of rotating rollers and the gaps between the conveyor belt and the adjacent rotating rollers can all drop tobacco leaves.

[0050] After being thinned by the first feeding mechanism 5, the thickness of the tobacco leaves is further reduced. There may be single tobacco leaves and multiple stacked tobacco leaves. Tobacco leaves of various thicknesses can all achieve the purpose of shunting through the gaps in the shunting area 21. One path of tobacco leaves falls onto the second lifting mechanism 4 below, and the other path of tobacco leaves is conveyed above the rotating roller to the discharge end at the uppermost part of the first lifting mechanism 2. For the tobacco leaves that fall in one path in the present invention, at this time, the thickness has decreased and the weight has decreased. When the tobacco leaves fall and strike, a large amount of broken leaves will not be generated, but they will be loosened by the impact of gravity, which is convenient for the subsequent second feeding mechanism 6 to further thin, loosen and separate the leaves.

[0051] Further, the conveyor belt of the second lifting mechanism 4 extends obliquely upward. The feeding end of the second lifting mechanism 4 is located below the first lifting mechanism 2, and the discharge end of the second lifting mechanism 4 is located above the first lifting mechanism 2. There is a certain distance between the discharge end of the first lifting mechanism 2 and the conveyor belt of the second lifting mechanism 4, so that the tobacco leaves conveyed by the discharge end of the first lifting mechanism 2 fall onto the second lifting mechanism 4 and are loosened and separated by the impact.

[0052] In the present invention, by setting the discharge end of the first lifting mechanism 2 at a certain distance higher than the conveyor belt of the second lifting mechanism 4, it can enable another path of tobacco leaves to fall from the discharge end of the first lifting mechanism 2 and drop onto the second lifting mechanism 4. At this time, the thickness of the tobacco leaves has decreased, and a large amount of broken leaves will not be generated when the tobacco leaves fall, but the tobacco leaves will be loosened by the impact of gravity, which is convenient for the subsequent second feeding mechanism 6 to further thin and separate the leaves.

[0053] Preferably, the end of the feeding end of the second lifting mechanism 4 is arranged close to directly below the feeding end of the first lifting mechanism 2, and the discharge end of the second lifting mechanism 4 protrudes upward from the first lifting mechanism 2 by a certain distance, which is sufficient to arrange one or more second feeding mechanisms 6.

[0054] Rake nails are provided on the conveyor belts of the first lifting mechanism 2 and the second lifting mechanism 4. Preferably, the rake nails are flexible rake nails. More preferably, the rake nails are made of food-grade materials.

[0055] In the present invention, through the rake nails on the conveyor belt of the first lifting mechanism 2 and the rake nails on the conveyor belt of the second lifting mechanism 4, the friction of the conveyor belt can be increased to ensure that the tobacco leaves will not slide off during the high-speed lifting process.

[0056] Rake nails are also provided on the first feeding mechanism 5 and the second feeding mechanism 6, and the rake nails are metal rake nails or flexible rake nails.

[0057] The first material feeding mechanism 5 and the second material feeding mechanism 6 are material feeding belt devices or material feeding roller devices. Rake nails are also provided on the material feeding belt and the material feeding roller, which cooperate with the rake nails on the first lifting mechanism 2 and the second lifting mechanism 4, can increase the friction force with the tobacco leaves, and facilitate the spreading, loosening and uniform conveying of the tobacco leaves.

[0058] Further, the minimum material passing gap between the first material feeding mechanism 5 and the conveyor belt of the first lifting mechanism 2 is greater than the minimum material passing gap between the second material feeding mechanism 6 and the conveyor belt of the second lifting mechanism 4, gradually reducing the thickness of the tobacco leaf layer for spreading and slicing.

[0059] Preferably, the first material feeding mechanism 5 and the second material feeding mechanism 6 are rotatably arranged in the direction opposite to the conveying direction of the tobacco leaves.

[0060] There is a certain gap between the material feeding mechanism and the conveyor belt. The thinner tobacco leaf layer can pass through smoothly, and the part of the thicker tobacco leaf layer above the material passing gap is scraped off by the material feeding mechanism and falls back onto the lifting mechanism and then re-enters the material passing gap to repeat the above actions.

[0061] Three material feeding rollers of the first material feeding mechanism 5 are arranged in sequence above the conveyor belt of the first lifting mechanism 2 along the advancing direction of the tobacco leaves, and three material feeding rollers of the second material feeding mechanism 6 are arranged in sequence above the conveyor belt of the second lifting mechanism 4 along the advancing direction of the tobacco leaves.

[0062] The central connection line of the three material feeding rollers of the first material feeding mechanism 5 has a certain angle with the conveyor belt of the first lifting mechanism 2. And along the tobacco leaf conveying direction, the distance between the three material feeding rollers of the first material feeding mechanism 5 and the conveyor belt of the first lifting mechanism 2 becomes smaller and smaller.

[0063] The central connection line of the three material feeding rollers of the second material feeding mechanism 6 has a certain angle with the conveyor belt of the second lifting mechanism 4. And along the tobacco leaf conveying direction, the distance between the three material feeding rollers of the second material feeding mechanism 6 and the conveyor belt of the second lifting mechanism 4 becomes smaller and smaller.

[0064] The distance between the first material feeding mechanism 5 and the conveyor belt of the first lifting mechanism 2 is adjustable, and the distance between the second material feeding mechanism 6 and the conveyor belt of the second lifting mechanism 4 is adjustable.

[0065] The tobacco leaf slicing device has a plurality of second material feeding mechanisms 6, which are arranged at intervals above the conveyor belt of the second lifting mechanism 4 along the conveying direction. The plurality of second material feeding mechanisms 6 are all arranged above the second lifting mechanism 4 which is higher than the first lifting mechanism 2, gradually spreading and slicing the tobacco leaves thinned and loosened by the first material feeding mechanism 5 to obtain single tobacco leaves, improving the slicing effect. The second lifting mechanism 4 can convey the sliced tobacco leaves to other mechanisms for grading and sorting.

[0066] Further, the tobacco leaf slicing device further includes a material receiving and conveying mechanism 3.

[0067] In the path where the feeding mechanism 1 feeds the first lifting mechanism 2, there is a material leakage area 11 for making the tobacco leaves with a thickness lower than the preset thickness fall and be beaten loose and sliced during the process of conveying the tobacco leaves to the first lifting mechanism 2.

[0068] The material receiving and conveying mechanism 3 is located below the feeding end of the feeding mechanism 1 and the first lifting mechanism 2, and is used for receiving and conveying the tobacco leaves falling from the material leakage area 11. The discharging end of the material receiving and conveying mechanism 3 is matched with the feeding end of the second lifting mechanism 4 for conveying the tobacco leaves to the second lifting mechanism 4.

[0069] In the present invention, by setting the material leakage area 11, during the process of the feeding mechanism 1 feeding the first lifting mechanism 2, the thinner tobacco leaves fall through the material leakage area 11 and are beaten loose and sliced by gravity, and are conveyed through the second feeding mechanism 6 for further thinning and slicing; the thicker tobacco leaves are thinned by the first feeding mechanism 5 after passing through the material leakage area 11, and then are conveyed through the second feeding mechanism 6 for further thinning and slicing, so that the thinner tobacco leaves can be separated by the feeding mechanism 1, avoiding being stacked with the thicker tobacco leaves and causing broken leaves due to thinning and extrusion, reducing the fragments generated during the tobacco leaf slicing process, and improving the slicing effect of the tobacco leaves.

[0070] The conveying speed of the first lifting mechanism 2 is greater than that of the feeding mechanism 1, which can increase the spacing of the tobacco leaves and reserve enough time, being beneficial to the first feeding mechanism 5 for thinning and loosening evenly.

[0071] The conveying speed of the second lifting mechanism 4 is the same as or close to that of the first lifting mechanism 2. The conveying speed of the material receiving and conveying mechanism 3 is greater than or equal to the conveying speed of the feeding mechanism 1 and less than the conveying speed of the second lifting mechanism 4.

[0072] The conveying speed of the first lifting mechanism 2 is 2.0 m / s - 3.0 m / s.

[0073] The material leakage area 11 is arranged at the discharging end of the feeding mechanism 1 and / or between the feeding mechanism 1 and the first lifting mechanism 2, and the conveyor belt of the material receiving and conveying mechanism 3 extends below the material leakage area 11.

[0074] Preferably, a plurality of first rollers 12 are arranged at intervals along the conveying direction at the discharging end of the feeding mechanism 1, and the spacing between the plurality of first rollers 12 is adjustable. There is a certain gap between the discharging end of the feeding mechanism 1 and the feeding end of the first lifting mechanism 2. The material leakage area 11 has the above-mentioned first rollers 12 and the gap.

[0075] More preferably, the rollers in the diversion area 21 and the first roller 12 in the material leakage area 11 are round rollers. The diameter of the rollers is 80 - 200 mm.

[0076] The feeding mechanism 1 is arranged to extend horizontally, and is sequentially provided with a conveyor belt and a plurality of first rollers 12 along the conveying direction. There are gaps between adjacent first rollers 12, between the first rollers 12 and the conveyor belt, and between the first rollers 12 and the first lifting mechanism 2, all of which can let the tobacco leaves leak downward. The last first roller 12 in the material leakage area 11 is higher than the feeding end of the conveyor belt of the first lifting mechanism 2.

[0077] Preferably, the plurality of first rollers 12 are the discharge end of the feeding mechanism 1.

[0078] The conveyor belt of the material receiving and conveying mechanism 3 extends obliquely upward along the conveying direction, and the discharge end of the material receiving and conveying mechanism 3 extends beyond the gap to above the feeding end of the second lifting mechanism 4, ensuring that all the tobacco leaves falling from the material leakage area 11 can be received.

[0079] The angle a between the conveyor belt of the material receiving and conveying mechanism 3 and the horizontal plane is smaller than the angles b and c between the conveyor belts of the first lifting mechanism 2 and the second lifting mechanism 4 and the horizontal plane respectively.

[0080] Preferably, the angle b between the conveyor belt of the first lifting mechanism 2 and the horizontal plane is 60° - 75°, and the angle c between the conveyor belt of the second lifting mechanism 4 and the horizontal plane is 63° - 70°. The angle b between the conveyor belt of the first lifting mechanism 2 and the horizontal plane can be adjusted to control the conveying speed of the tobacco leaves. The conveying direction of the first lifting mechanism 2 is approximately parallel to the conveying direction of the second lifting mechanism 4.

[0081] All the above conveyor belts can be conveyor belts, mesh belts, or other forms of conveyor belts, and are arranged on the conveying frame in a loop and rotatable manner.

[0082] The tobacco leaf slicing device further includes a support frame 7 for supporting the feeding mechanism 1, the material receiving and conveying mechanism 3, the first lifting mechanism 2, the second lifting mechanism 4, the first material distributing mechanism 5 and the second material distributing mechanism 6.

[0083] The support frame 7 includes a first support 71, a second support 72 and a third support 73. The first support 71 is arranged below the conveyor belt of the feeding mechanism 1, the third support 73 is arranged below the second lifting mechanism 4 to support the second lifting mechanism 4, and the first lifting mechanism 2 is connected to the third support 73 through a connecting frame and is supported on the upper side of the second lifting mechanism 4. The second support 72 is located between the first support 71 and the third support 73, lower than the highest point of the first support 71, and supports the material receiving and conveying mechanism 3, making the tobacco leaf slicing device of the present invention have a compact structure and small occupied space.

[0084] Further, the tobacco leaf slicing device further includes an automatic separating and peeling device, which is connected to the feeding end of the feeding mechanism 1 and is used for dividing the tobacco leaf stack into tobacco leaf layers with a certain preset thickness and conveying them to the feeding mechanism 1.

[0085] First, use the automatic separating and peeling device to divide the tobacco leaf stack into tobacco leaf layers, which are formed by stacking dozens of tobacco leaves, and then convey them to the feeding mechanism 1 and start to gradually loosen and slice.

[0086] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-mentioned technical content to form equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A tobacco leaf slicing device, characterized in that, Including: A feeding mechanism for conveying tobacco leaves; A first lifting mechanism, cooperating with the feeding mechanism, for receiving the tobacco leaves conveyed by the feeding mechanism and lifting them upward; A first material distributing mechanism, arranged above the first lifting mechanism, for cooperating with the first lifting mechanism to thin and loosen the tobacco leaves; the first lifting mechanism is provided with a diversion area for diverting the thinned and loosened tobacco leaves, with part of the tobacco leaves being conveyed to the discharge end of the first lifting mechanism and part of the tobacco leaves falling downward to be loosened and separated into pieces; A second lifting mechanism, partially located below the first lifting mechanism, for sequentially receiving the tobacco leaves that fall downward from the diversion area and the tobacco leaves conveyed by the discharge end of the first lifting mechanism along the conveying direction; A second material distributing mechanism, arranged above the second lifting mechanism and higher than the first lifting mechanism, for cooperating with the second lifting mechanism to thin, loosen and separate into pieces the received tobacco leaves again.

2. The tobacco leaf separating device according to claim 1, wherein the diversion area is arranged below the first material distributing mechanism or behind the first material distributing mechanism in the conveying direction, and the diversion area has a plurality of rotating rollers arranged at intervals along the conveying direction.

3. The tobacco leaf separating device according to claim 2, wherein the conveyor belt of the second lifting mechanism extends obliquely upward, the feeding end of the second lifting mechanism is located below the first lifting mechanism, and the discharge end of the second lifting mechanism is located above the first lifting mechanism; there is a certain distance between the discharge end of the first lifting mechanism and the conveyor belt of the second lifting mechanism, so that the tobacco leaves conveyed by the discharge end of the first lifting mechanism fall onto the second lifting mechanism to be loosened and separated into pieces; Preferably, rake nails are provided on the conveyor belt of the first lifting mechanism and the conveyor belt of the second lifting mechanism.

4. The tobacco leaf separating device according to any one of claims 1-3, wherein a material leakage area is provided in the path of the feeding mechanism for feeding the first lifting mechanism, for making the tobacco leaves with a thickness lower than the preset thickness fall and be loosened and separated into pieces during the process of conveying the tobacco leaves to the first lifting mechanism; the tobacco leaf separating device further includes: a material receiving and conveying mechanism, located below the feeding mechanism and the feeding end of the first lifting mechanism, for receiving and conveying the tobacco leaves that fall from the material leakage area; the discharge end of the material receiving and conveying mechanism cooperates with the feeding end of the second lifting mechanism for conveying the tobacco leaves to the second lifting mechanism.

5. The tobacco leaf separating device according to claim 4, wherein the material leakage area is arranged at the discharge end of the feeding mechanism and / or between the feeding mechanism and the first lifting mechanism, and the conveyor belt of the material receiving and conveying mechanism extends below the material leakage area; the conveying speed of the first lifting mechanism is greater than the conveying speed of the feeding mechanism; Preferably, a plurality of rotating rollers are arranged at intervals along the conveying direction at the discharge end of the feeding mechanism, and the distance between the plurality of rotating rollers is adjustable; there is a certain gap between the discharge end of the feeding mechanism and the feeding end of the first lifting mechanism.

6. The tobacco leaf separating device according to claim 5, wherein The feeding mechanism is arranged to extend horizontally, the conveyor belt of the material receiving and conveying mechanism extends obliquely upward along the conveying direction, and the discharge end of the material receiving and conveying mechanism extends beyond the gap to above the feeding end of the second lifting mechanism.

7. The tobacco leaf slicing device according to claim 6, characterized in that, The included angle a between the conveyor belt of the material receiving and conveying mechanism and the horizontal plane is smaller than the included angles b and c between the conveyor belts of the first lifting mechanism and the second lifting mechanism and the horizontal plane respectively; Preferably, the included angle b between the conveyor belt of the first lifting mechanism and the horizontal plane is 60° - 75°, and the included angle c between the conveyor belt of the second lifting mechanism and the horizontal plane is 63° - 70°.

8. A tobacco leaf slicing device according to any one of claims 1-7, characterized in that, The minimum material passing gap between the first material deflecting mechanism and the conveyor belt of the first lifting mechanism is larger than the minimum material passing gap between the second material deflecting mechanism and the conveyor belt of the second lifting mechanism; Preferably, the first material deflecting mechanism and the second material deflecting mechanism are deflecting belt devices or deflecting roller devices.

9. The tobacco leaf slicing device according to claim 8, characterized in that, It includes a plurality of second material deflecting mechanisms, which are arranged at intervals above the conveyor belt of the second lifting mechanism along the conveying direction; The plurality of second material deflecting mechanisms are all arranged on the second lifting mechanism higher than the first lifting mechanism.

10. A tobacco leaf slicing device according to any one of claims 1-9, characterized in that, It further includes: An automatic separating and peeling device, which is connected to the feeding end of the feeding mechanism and is used for conveying the tobacco leaves to the feeding mechanism after being layered.

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