CN218650226U - A Tobacco Leaf Intelligent Grading System - Google Patents

Abstract

The utility model discloses a tobacco leaf intelligence grading system, including the loose system of tobacco leaf, tobacco leaf grading system, divide the neat stalk system in storehouse. The tobacco leaf loosening system comprises a manual bundle loosening channel, a vibration screening device and a vibration winnowing device, and aims to gradually reduce the size of tobacco leaves from large to small and increase the thickness of the tobacco leaves to thin through the manual and mechanical mixing action, so that the tobacco leaf loosening system realizes the singulation and prepares for grading the tobacco leaves; the tobacco leaf grading device comprises a wind separation cavity single-chip part and an air duct grading system, and mainly has the functions of wind separation single-chip, visual identification grading and channel output. The bin and stem separating system mainly comprises a first belt, a second belt and an output belt. The system can realize automatic classification of the machine for tobacco leaf classification work, replaces the current situation of the existing manual classification, saves a large amount of labor force, and improves the intelligence of the tobacco leaf classification work.

Description

A Tobacco Leaf Intelligent Grading System

technical field

The utility model belongs to the technical field of tobacco machinery, in particular to an intelligent classification system for tobacco leaves.

Background technique

At present, the sorting tasks of tobacco leaves in threshing and redrying enterprises are all completed by classifiers according to national standards and relying on human sensory judgment. Human senses can distinguish quality factors such as tobacco leaf maturity, leaf structure, identity, oil content, color and length. Regardless of the adoption of floor stalls or dynamic selection, a large amount of manpower and material resources are required, and the selection personnel are often less educated, and the mastery of tobacco leaf sorting ability after skill training is uneven. Factors such as labor shortage in intensive enterprises directly restrict the efficiency and final quality of tobacco leaf sorting. Tobacco leaf re-selection ability has become the standard for judging the processing capacity of a re-baking enterprise. Improving the re-selection ability of tobacco leaves has become a top priority for the development of re-baking enterprises. As an important economic crop, tobacco occupies a pivotal position in the national economy. At present, domestic tobacco leaves are basically manually graded, which has a series of problems such as time-consuming, laborious, vague and subjective classification. In addition, due to factors such as normal physical fatigue of graders and busy farming periods, labor shortages in labor-intensive enterprises, etc., It directly restricts the efficiency and final quality of tobacco leaf sorting. With the development of modern tobacco production and the continuous improvement of the quality of cigarette products, a more professional and accurate tobacco leaf automatic grading system is increasingly required to solve the above-mentioned shortcomings of manual grading.

Utility model content

The technical problem to be solved by the utility model is to provide an intelligent classification system for tobacco leaves, which can quickly and accurately realize the automatic loosening and classification of tobacco leaves, ensure the consistency of tobacco leaf classification, and effectively solve the problem of large labor and low efficiency of manual classification. question.

The first aspect of the utility model provides a tobacco leaf intelligent grading system, which includes a tobacco leaf grading device, and the tobacco leaf grading device includes a winnowing cavity single-chip system 5 and an air duct grading system 6 that are connected to each other;

The winnowing chamber singulation system 5 includes a vertical winnowing chamber 5-1, which is used to separate the loose tobacco leaves by winnowing, so as to prepare for the visual identification and grading of tobacco leaves;

The air duct grading system 6 includes: an air duct 6-1, a first image acquisition module 6-2 arranged on the upper and lower sides outside the air duct 6-1, arranged under the air duct 6-1 and connected to A plurality of vertical grading passages 6-3 connected by the air duct 6-1, and an air supply device;

The first image acquisition module 6-2 is used for image acquisition, and tobacco leaf level positioning according to the image; the air supply device is used for blowing from top to bottom through the vertical grading channel 6-3 to discharge the tobacco leaves of the corresponding level. tobacco leaf.

Preferably, the tobacco leaf intelligent grading system further includes: a system 7 for sorting and trimming stems arranged downstream of the tobacco leaf grading device;

The system 7 for dividing warehouses and stalks includes a first belt 7-1, a second belt 7-2 and several output belts 7-3, and a second image acquisition module arranged on the upper and lower sides of the first belt 7-1 7-4, air supply device;

Wherein, the first belt 7-1 is located below the vertical grading channel 6-3, the first belt 7-1 and the second belt 7-2 are arranged in parallel, and several output belts 7-3 are respectively vertical set at the tail ends of the first belt 7-1 and the second belt 7-2;

The first belt 7-1 is used to receive the tobacco leaves discharged from the vertical grading channel 6-3, and the second image acquisition module 7-4 is used to Realize the upper and lower double-sided visual secondary detection to further grade the tobacco leaves;

The air supply device is used to laterally convey the tobacco leaves on the first belt 7-1 to the second belt 7 when the secondary detection of the second image acquisition module 7-4 finds that the tobacco leaves are not the tobacco leaves of the corresponding level of the channel. -2 up;

The several output belts 7-3 are used to output tobacco leaves of corresponding grades and achieve the effect of aligning the stems of the tobacco leaves.

Preferably, the tobacco leaf intelligent grading system further includes: a tobacco leaf loosening system arranged upstream of the tobacco leaf grading device;

The loose tobacco leaf system includes a vibration screening device 3 and a vibration winnowing device 4 arranged from upstream to downstream;

Wherein, the vibratory screening device 3 is a multi-layer design; the first stage of each layer is a screen mechanism 3-1, and the second stage is a vibrating roller table 3-2, and the vibratory screening device 3 also includes: The dust absorber set on the top;

The vibratory winnowing device 4 includes: a winnowing vibrating roller table 4-1 arranged at the upper part, and a blower fan 4-2 arranged at the lower part.

Preferably, the tobacco leaf intelligent grading system further includes: the tobacco leaf loosening system further includes a vibration channel system 2 arranged upstream of the vibration screening device 3;

The vibrating channel system 2 comprises an upper layer belt 2-1 and a lower layer belt 2-2 arranged obliquely, and the upper layer belt 2-1 and the lower layer belt 2-2 form a first clamping section 2-3 located upstream and a first clamping section 2-3 located downstream. The second clamping section 2-4, the first clamping section 2-3 and the second clamping section 2-4 are arranged in a misalignment perpendicular to the conveying direction of the tobacco leaves, so that the first clamping section 2- 3 and the second clamping section 2-4 can clamp different parts of the tobacco leaves, the first clamping section 2-3 is used to clamp and shake the tobacco stem end to separate the tobacco leaves, the second clamping section Sections 2-4 are used to clamp and shake the tobacco leaf end to separate the tobacco leaves;

The vibrating channel system 2 also includes a conveyor belt 2-6 arranged obliquely and located below the lower belt 2-2, and the conveyor belt 2-6 is used to support the first clamping section 2-3 and the second clamping section 2-3. The tobacco leaves shaken off by the two clamping sections 2-4 are collected and transported forward.

Preferably, the tobacco leaf intelligent grading system further includes: the tobacco leaf loosening system further includes a manual unbending channel 1 arranged at the most upstream, which is used to provide a feeding channel after the tobacco leaves are manually unzipped.

Preferably, the air duct 6-1 has a bent section of the air duct, and the first image acquisition module 6-2 is arranged on the upper and lower sides of the bent section of the air duct to take pictures of tobacco leaves for tobacco leaf level positioning.

Preferably, the vibration channel system 2 further includes a dust cover 2-5, and the dust cover 2-5 is obliquely arranged on the outside of the first clamping section 2-3 and the second clamping section 2-4 , for dustproofing the first clamping section 2-3 and the second clamping section 2-4.

Preferably, the vibration roller table 3-2 is an eccentric vibration roller table, and the winnowing vibration roller table 4-1 is an eccentric vibration roller table.

Preferably, the winnowing vibrating roller table 4-1 is arranged horizontally, and the front end of the winnowing vibrating roller table 4-1 is vertically provided with a pneumatic loosening channel 4-3.

Preferably, the tobacco leaf loosening system includes at least two vibratory winnowing devices 4 arranged in series.

In the present invention, the conveying direction of the tobacco leaves is recorded as from upstream to downstream.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the air duct 6-1, the utility model realizes the primary grading of the tobacco leaves through the first image acquisition module 6-2. The tobacco leaf processing capacity in the air duct 6-1 is large, and the moving speed of the tobacco leaves is fast, so the processing speed of the tobacco leaf grading is Fast, high device capacity. However, most of the existing grading work is done manually. In the attempt to use mechanical automation and visual technology to classify tobacco leaves, the existing methods are mostly based on the combination of conveyor belt and visual imaging technology, and realize it on the belt channel. Tobacco leaf grading, so the processing speed of tobacco leaf grading is slow and the production capacity is low, which is far from meeting the actual production needs.

And prior art realizes tobacco leaf grading mostly on belt, so the processing speed of tobacco leaf grading is slow, and production capacity is low.

2. The utility model is also equipped with a binning system 7 after the primary grading of the tobacco leaves. The second image acquisition module 7-4 performs secondary detection on the tobacco leaves discharged from the vertical grading channel 6-3 for further grading. When the second detection of the second image acquisition module 7-4 finds that the tobacco leaves are not the tobacco leaves of the corresponding level of this channel, the tobacco leaves on the first belt 7-1 will be blown laterally to the second belt 7-2 for additional output .

3. In particular, a bending section of the air duct is set in the air duct 6-1 of the present invention, and the first image acquisition module 6-2 is arranged on the upper and lower sides of the bending section of the air duct to take frontal pictures of the tobacco leaves Carry out tobacco leaf level positioning.

Because in the air duct, the tobacco leaves are substantially perpendicular to the air duct, the shooting adjustment angle of the first image acquisition module 6-2 (the utility model camera) is easier to adjust to the front (or closer to the front) of the tobacco leaves for shooting , The shooting area is large, and the picture can more fully present the characteristics of the tobacco leaves.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the manual solution channel 1.

FIG. 2 is a schematic structural diagram of the vibration channel system 2 .

FIG. 3 is a structural schematic diagram of the vibrating screening device 3 .

FIG. 4 is a structural schematic diagram of the vibratory winnowing device 4 .

FIG. 5 is a structural schematic diagram of the winnowing chamber 5 .

Fig. 6 is a schematic structural diagram of 6 parts of the air duct grading system, only a part of the air duct bending section is cut out to illustrate the cooperation relationship between the air duct bending pipe and the first image acquisition module.

Fig. 7 is a structural schematic diagram of the system 7 for dividing warehouses and stalks.

Figure 8 is a layout diagram of the entire tobacco leaf intelligent grading system.

List of reference signs:

1. Manual release channel, 2. Vibration channel system, 2-1, upper belt, 2-2, lower belt, 2-3, first clamping section, 2-4, second clamping section, 2-5 , dust cover, 2-6, conveyor belt, 3, vibrating screening device, 3-1, screen mechanism, 3-2, vibrating roller table, 4, vibrating winnowing device, 4-1, winnowing vibrating roller Road, 4-2, Fan, 4-3, Pneumatic Loose Passage, 5, Wind Separation Chamber Monolithic System, 5-1, Vertical Wind Separation Chamber, 5-2, Side Air Duct, 6, Air Duct Grading System, 6-1, air duct, 6-2, first image acquisition module, 6-3, vertical grading channel, 6-4, rejecting channel, 7, compartmentalization system, 7-1, first belt , 7-2, the second belt, 7-3, the output belt, 7-4, the conversion channel, 8, the cigarette pack, 9, the cigarette handle.

Detailed ways

Below in conjunction with embodiment the utility model is described in further detail.

Those skilled in the art will understand that the following examples are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. The materials or equipment used are not indicated by the manufacturer, and they are all conventional products that can be obtained through purchase.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present utility model refers to the presence of the stated features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features , integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Additionally, "connection" as used herein may include wireless connections.

In the description of the present utility model, unless otherwise specified, "plurality" means two or more. The orientation or state relationship indicated by the terms "inner", "upper" and "lower" are based on the orientation or status relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In the description of the present utility model, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "installation" should be understood in a broad sense, for example, it can be a fixed connection or a It can be detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art will understand the specific meanings of the above terms in the present invention according to specific situations.

Those skilled in the art can understand that unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein explain.

The tobacco leaf intelligent grading system provided by the utility model records the conveying direction of the tobacco leaves as from upstream to downstream, and the tobacco leaf intelligent grading system includes a tobacco leaf loosening system, a tobacco leaf grading system, and a system of dividing warehouses and stalks arranged from upstream to downstream and interconnected with each other. 7.

The tobacco leaf loosening system includes a manual release channel 1, a vibrating channel system 2, a vibrating screening device 3 and a vibrating winnowing device 4 arranged from upstream to downstream, the purpose of which is to gradually remove the tobacco leaves from the Large to small, from thick to thin, to achieve individualization and prepare for the grading of tobacco leaves.

Manual unbundling Channel 1 manually unpacks the whole pack of tobacco leaves into small bundles of tobacco leaves, manually places the cigarette pack 8 on the operating table, performs manual unpacking to obtain the tobacco handle 9 for loading, and controls the process of unpacking. Crushed and preliminarily loosened. Considering the problem of crushing, at present, the manual release will be carried out first, and the mechanical release method will be explored later. The details of manual solution channel 1 are shown in Figure 1.

The vibrating channel system 2 includes two upper belts 2-1 and two lower belts 2-2 arranged obliquely, one upper belt 2-1 and one lower belt 2-2 form the first clamping section 2- located upstream 3. The other upper belt 2-1 forms with the other lower belt 2-2 a second downstream clamping section 2-4. The first clamping section 2-3 and the second clamping section 2-4 are arranged in a dislocation perpendicular to the conveying direction of the tobacco leaves, so that the first clamping section 2-3 and the second clamping section 2-4 Different parts of tobacco leaves can be clamped. Specifically: the first clamping section 2-3 clamps and shakes the tobacco stem end so that the tobacco leaves are separated, and then transported to the second clamping section 2-4, the second clamping section 2- 4. Clamp and shake the tobacco leaf ends to separate the tobacco leaves.

The vibrating channel system 2 also includes a conveyor belt 2-6 arranged obliquely and located below the lower belt 2-2, and the conveyor belt 2-6 is used to support the first clamping section 2-3 and the second clamping section 2-3. The tobacco leaves shaken off by the two clamping sections 2-4 are collected and transported forward.

When the conveyer belt 2-6 vibrates during conveying above, it can also destroy the connection state of the bonding part of the tobacco leaves, so that the connection between the tobacco leaves and the tobacco leaves can be disengaged. The vibration channel system 2 also includes a dust cover 2-5, and the dust cover 2-5 is obliquely arranged on the outside of the first clamping section 2-3 and the second clamping section 2-4, for The first clamping section 2-3 and the second clamping section 2-4 are dust-proof.

At the first clamping section 2-3, the lower belt 2-2 protrudes relative to the upper belt 2-1 and connects with the manual release channel 1, so as to realize the loading of tobacco leaves. The conveyor belts 2-6 output the loose tobacco leaves into the vibratory screening device 3 . The vibration channel system 2 is specifically shown in FIG. 2 .

The vibrating screening device 3 includes a multi-layer designed screen mechanism 3-1 and a vibrating roller table 3-2. The screen mechanism 3-1 of the first layer is located below the entrance of the vibratory screening device 3, and is used to receive the tobacco leaves transported from upstream. The first stage of each layer is the sieve mechanism 3-1, which shakes the tobacco leaves initially through vibration, and makes the impurities of stones in the tobacco leaves be preliminarily screened out through the sieve. The second stage of each layer is vibrating roller table 3-2, which is composed of eccentric rollers. Tobacco leaves enter a vibrating roller table 3-2, and are further loosened under the rotation and tumbling of eccentric rollers, that is, irregular drums, and then fall into the lower end. The next layer of screen mesh mechanism 3-1 and the loose mechanism that vibrating roller table 3-2 form. This reciprocates until the tobacco leaves are fully shaken off. The vibrating roller table 3-2 is a closed structure, and the wind power from bottom to top is filled between the vibrating roller table 3-2, so as to assist the shaking of the tobacco leaves. In the vibrating screening device 3, a multi-stage dust absorber is arranged on the uppermost air duct to reduce dust. At the same time, the gap between the eccentric rollers settles the magazine particles between the tobacco leaves. The specific structure of the vibrating screening device 3 is shown in FIG. 3 .

Vibration winnowing device 4 is as shown in Figure 4, and its top is still the winnowing vibrating roller table 4-1 that eccentric roller group structure forms, and fan 4-2 is arranged at the bottom, after tobacco leaf enters the bottom of vibrating winnowing device 4, in wind Under the upward action of the tobacco leaf, the tobacco leaves are floated upward through the wind loosening channel 4-3 vertically arranged at the front end, where the tobacco leaves are further loosened, and the loose tobacco leaves move to the winnowing vibrating roller table 4-1 for further vibration and loosening. The two vibratory winnowing functions fully loosen the tobacco leaves. In this embodiment, two vibratory air separation devices 4 are arranged in series to fully disperse the tobacco leaves.

The tobacco leaf grading device includes a winnowing cavity single-piece system 5 and an air duct grading system 6, the main functions of which are to separate the tobacco leaves by winnowing, visually identify and classify, and output in separate channels.

The winnowing cavity single-chip system 5 is used to separate the loose tobacco leaves by winnowing, so as to prepare for the visual identification and grading of tobacco leaves. The winnowing chamber singulation system 5 includes a vertical winnowing chamber 5-1. The vertical winnowing chamber 5-1 is blown by positive pressure at the bottom, and the tobacco leaves are sent into the bottom of the vertical winnowing chamber 5-1. Under the spiral wind field generated by the action of the side wind pipe, while further tearing and loosening, the individualized tobacco leaves are blown out from the top of the vertical winnowing chamber 5-1, and the multiple pieces of bonded tobacco leaves fall to the bottom again to circulate the air. Loose handling. The individualized tobacco leaves sent by the wind enter the air duct grading system 6 for visual grading. FIG. 5 is a schematic structural diagram of the winnowing chamber singulation system 5 . The arrows in Figure 5 are the direction of wind movement.

The air duct grading system 6 includes: an air duct 6-1, a first image acquisition module 6-2 arranged on the upper and lower sides outside the air duct 6-1, arranged under the air duct 6-1 and connected to The three vertical grading passages 6-3 connected by the air passage 6-1 are air supply devices. After a single tobacco leaf enters the air duct 6-1, the first image acquisition module 6-2 is used to acquire images from the upper and lower sides of the air duct 6-1, and the level of the tobacco leaf is positioned according to the image, and then the positive pressure provided by the air supply device is used to The gas is blown from top to bottom to discharge the corresponding grade of tobacco leaves. The three vertical grading passages 6-3 arranged below the air passage 6-1 are passages through which tobacco leaves of corresponding grades fall. In this embodiment, the first image acquisition module 6-2 includes a camera and a light source matched with the camera. The air supply device can choose fan and so on. Fig. 6 is a structural schematic diagram of 6 parts of the air duct classification system, and only a part of the air duct bending section is cut out for illustration. The air duct bending section is a smooth bending section. A rejecting passage 6-4 is also connected below the air duct 6-1.

The system 7 for dividing warehouses and stalks includes four first belts 7-1, four second belts 7-2 and several output belts 7-3, and the second images arranged on the upper and lower sides of the first belt 7-1 Acquisition module 7-4, air supply device. The four first belts 7-1 are respectively located below the three vertical grading passages 6-3 and the rejecting passage 6-4, the first belts 7-1 and the second belts 7-2 are arranged in parallel, and several output belts 7-3 are respectively vertically arranged at the tail ends of the first belt 7-1 and the second belt 7-2, so as to achieve the effect of aligning the stems. In this embodiment, the second image acquisition module 7-4 includes a camera and a light source matched with the camera. The air supply device can choose a fan or the like. The tobacco leaves discharged from the vertical grading channel 6-3 or the rejecting channel 6-4 after the preliminary inspection in the air duct 6-1 fall to the first tobacco leaf below from the vertical grading channel 6-3 or the rejecting channel 6-4. On the belt 7-1, by the cooperation of the running speed of the first belt 7-1 and the falling speed of the tobacco leaves, the attitude of the tobacco leaves is controlled so that the length direction of the first belt 7-1 is parallel to the running direction of the first belt 7-1, and at the second During the operation of a belt 7-1, the upper and lower double-sided visual secondary detection is realized to increase the classification accuracy. If the second detection on the first belt 7-1 finds that the tobacco leaves are not the tobacco leaves of the corresponding level of this channel, then the air supply device will blow the tobacco leaves on the first belt 7-1 laterally to the second belt 7-2, Blow to the corresponding output belt 7-3 by the second belt 7-2 for output. Fig. 7 is a schematic diagram of the structure of the system 7 for dividing warehouses. The transmission place of the second belt 7-2 and the output belt 7-3 is not shown in Figure 7, which is a conventional design.

Figure 8 is a layout diagram of the entire tobacco leaf intelligent grading system. Fig. 8 illustrates another situation of the air duct grading system 6: the air duct 6-1 is straight, and the first image acquisition module 6-2 is arranged obliquely on the upper and lower sides outside the air duct 6-1. This design can also meet the requirements.

Claims (10)

1. The tobacco leaf intelligent grading system is characterized by comprising a tobacco leaf grading device, wherein the tobacco leaf grading device comprises an air separation cavity single-chip system (5) and an air duct grading system (6) which are communicated with each other;

the winnowing cavity singulation system (5) comprises a vertical winnowing cavity (5-1) which is used for winnowing and singulating the loosened tobacco leaves and preparing for visual identification and grading of the tobacco leaves;

the air duct grading system (6) comprises: the air conditioner comprises an air duct (6-1), first image acquisition modules (6-2) arranged at the upper side and the lower side outside the air duct (6-1), a plurality of vertical grading channels (6-3) arranged below the air duct (6-1) and communicated with the air duct (6-1), and an air supply device;

the first image acquisition module (6-2) is used for acquiring images of tobacco leaves and carrying out tobacco leaf level positioning according to the tobacco leaf images; the air supply device is used for blowing the tobacco leaves of the corresponding grade through the vertical grading channel (6-3) from top to bottom.

2. The intelligent tobacco grading system of claim 1, further comprising: a bin-dividing and stem-aligning system (7) arranged at the downstream of the tobacco leaf grading device;

the bin dividing and stem aligning system (7) comprises a first belt (7-1), a second belt (7-2), a plurality of output belts (7-3), second image acquisition modules and an air supply device, wherein the second image acquisition modules and the air supply device are arranged on the upper side and the lower side of the first belt (7-1);

wherein the first belt (7-1) is positioned below the vertical grading channel (6-3), the first belt (7-1) and the second belt (7-2) are arranged in parallel, and the plurality of output belts (7-3) are respectively vertically arranged at the downstream of the first belt (7-1) and the second belt (7-2);

the first belt (7-1) is used for receiving tobacco leaves discharged from the vertical grading channel (6-3), and the second image acquisition module is used for realizing upper and lower double-sided visual secondary detection in the running process of the first belt (7-1) so as to further grade the tobacco leaves;

the air supply device is used for transversely conveying the tobacco leaves on the first belt (7-1) to a second belt (7-2) when the second image acquisition module detects that the tobacco leaves are not the tobacco leaves of the corresponding grade of the channel;

the output belts (7-3) are used for outputting tobacco leaves of corresponding grades and achieving the effect of stem aligning.

3. The intelligent tobacco grading system of claim 1, further comprising: the tobacco leaf loosening system is arranged at the upstream of the tobacco leaf grading device;

the tobacco leaf loosening system comprises a vibrating screening device (3) and a vibrating winnowing device (4) which are arranged from upstream to downstream;

wherein the vibrating screen device (3) is of a multi-layer design; the first level of each layer is screen cloth mechanism (3-1), the second level is roll table (3-2) that shakes, vibratory screening device (3) still include: a dust absorber disposed uppermost;

the vibrating winnowing device (4) comprises: a winnowing vibration roller way (4-1) arranged at the upper part and a fan (4-2) arranged at the lower part.

4. The intelligent tobacco grading system of claim 3, further comprising: the tobacco leaf loosening system also comprises a vibration channel system (2) arranged on the upstream of the vibration screening device (3);

the vibration channel system (2) comprises an upper layer belt (2-1) and a lower layer belt (2-2) which are obliquely arranged, the upper layer belt (2-1) and the lower layer belt (2-2) form a first clamping section (2-3) positioned at the upstream and a second clamping section (2-4) positioned at the downstream, the first clamping section (2-3) and the second clamping section (2-4) are arranged in a staggered mode in the direction perpendicular to the conveying direction of the tobacco leaves, so that the first clamping section (2-3) and the second clamping section (2-4) can clamp different parts of the tobacco leaves, the first clamping section (2-3) is used for clamping and shaking the tobacco stem end to separate the tobacco leaves, and the second clamping section (2-4) is used for clamping and shaking the tobacco leaf end to separate the tobacco leaves;

the vibrating channel system (2) further comprises a conveying belt (2-6) which is obliquely arranged and located below the lower layer belt (2-2), and the conveying belt (2-6) is used for collecting and conveying the tobacco leaves shaken off by the first clamping section (2-3) and the second clamping section (2-4).

5. The tobacco leaf intelligent grading system according to claim 3, characterized in that the tobacco leaf loosening system further comprises an artificial bundle untying channel (1) arranged at the most upstream for providing a feeding channel after the tobacco leaves are manually untwisted.

6. The intelligent tobacco grading system according to claim 1, wherein the air duct (6-1) has an air duct bending section, and the first image acquisition modules (6-2) are arranged on the upper and lower sides of the air duct bending section to take pictures of tobacco leaves for tobacco leaf level positioning.

7. The intelligent tobacco grading system according to claim 4, characterized in that said vibrating channel system (2) further comprises dust covers (2-5), said dust covers (2-5) being obliquely arranged outside said first and second clamping sections (2-3, 2-4) for dust protection of said first and second clamping sections (2-3, 2-4).

8. The tobacco leaf intelligent grading system according to claim 3, characterized in that the vibrating roller table (3-2) is an eccentric vibrating roller table and the winnowing vibrating roller table (4-1) is an eccentric vibrating roller table.

9. The tobacco leaf intelligent grading system according to claim 3, characterized in that the winnowing vibration roller table (4-1) is horizontally arranged, and the front end of the winnowing vibration roller table (4-1) is vertically provided with a pneumatic loosening channel (4-3).

10. The tobacco leaf intelligent grading system according to claim 3, characterized in that it comprises at least 2 vibrating air separation devices (4) arranged in series.

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