A flaky material grade high-speed sorting device and a working method thereof

Abstract

A flaky material grade high-speed sorting device, comprising: a wind separation mechanism including a rotating air pipe assembly and a rotating air blower, one end of the rotating air pipe assembly is connected with the rotating air blower through a pipe adapter assembly, the other end is connected with a separation tank assembly, and the rotating air pipe assembly is arranged outside the separation tank assembly in a spiral shape; a top conveying air pipe is arranged above the separation tank assembly, a tobacco grade sorting device is arranged on one side of a discharge port of the top conveying air pipe, detection assemblies and a light source control mechanism are arranged above and below the tobacco grade sorting device respectively; and a sorting and removing mechanism is sequentially arranged behind the tobacco grade sorting device. Through upward and rotating air force, the tobacco moves upward in the tank body, is stirred under the action of the rotating air force, and is first separated; the tobacco that is first separated moves upward under the action of the air force, is conveyed outside the separation tank, and the un-separated tobacco that is in a lump falls downward after running to a certain height, so that the tobacco completes falling and stirring effects, and the tobacco separation quality is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tobacco separation, and particularly relates to a high-speed grade sorting device for sheet materials and a working method thereof. BACKGROUND

[0002] Tobacco needs to be graded and screened during processing. At present, the tobacco sorting task of a leaf threshing and redrying enterprise is completed by a grading worker according to national standards and relying on human sensory judgment. The selection personnel are often low in education level, and the degree of mastery of tobacco sorting ability after skill training is uneven. In addition, there are factors such as normal physiological fatigue period of people and labor shortage of labor-intensive enterprises during busy farming period, and there are a series of problems such as time-consuming, laborious, fuzzy grading and great subjectivity, which directly restrict the efficiency and final quality of tobacco sorting.

[0003] Therefore, the existing tobacco sorting technology still needs to be improved. SUMMARY

[0004] The present application aims to overcome the above deficiencies, and provides a high-speed grade sorting device for sheet materials. A bottom fan in a wind power separation mechanism drives the separation of the material by running a board. Through upward and rotating wind power, tobacco moves upward in the tank while being stirred under the action of rotating wind power. The first separated tobacco moves upward under the action of wind power and is transported outside the separation tank. The unseparated tobacco falls downward after running to a certain height, so that the tobacco can complete the falling and stirring effect, avoid breaking in the separation process caused by external force or mechanical parts, and improve the separation quality of the tobacco.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present application provides a kind of sheet material grade high-speed sorting device, including: feeding device, separation tank assembly, wind power separation mechanism, top conveying air pipe, tobacco grade sorting device, a group of sorting rejection mechanism and tail air supplement mechanism, the feeding device includes bottom fan and feeding port connector pipe, the bottom fan is connected with the feeding port connector pipe one end by first soft joint, the feeding port connector pipe is equipped with feeding port, the feeding port is equipped with feeding pipe;The separation tank assembly is connected with the end of feeding port connector pipe away from soft joint by corner bend pipe;The wind power separation mechanism includes at least one rotating air pipe assembly and at least one rotating fan, one end of the rotating air pipe assembly is connected with the rotating fan by pipe fitting adapter assembly, the other end is connected with the separation tank assembly, the rotating air pipe assembly is helically arranged on the outside of the separation tank assembly, the air inlet is tangentially connected with the tank body, and the air inlet is provided with an elevation angle;The top conveying air pipe is arranged above the separation tank assembly and is connected with the discharge port of the separation tank assembly through the connecting pipe;The tobacco grade sorting device is arranged on the discharge port side of the top conveying air pipe, and the tobacco grade sorting device is respectively provided with detection assembly and light source control mechanism on the upper and lower sides;The sorting rejection mechanism is sequentially arranged behind the tobacco grade sorting device;The tail air supplement mechanism is arranged at the end of the top conveying air pipe away from the tobacco grade sorting device.

[0006] The sheet material grade high-speed sorting device provided by the application has simple structure, reasonable arrangement, and the bottom fan in the wind power separation mechanism drives the separation of the compacted material. Through the upward and rotating air force, the tobacco leaves move upward in the tank body and are stirred under the action of the rotating air force. The tobacco leaves separated first move upward under the action of the air force and are conveyed out of the separation tank. The compacted tobacco leaves that are not separated fall downward after moving to a certain height, so that the tobacco leaves can complete the falling and stirring effects and are prevented from being broken in the separation process due to external force or mechanical parts, thereby improving the separation quality of the tobacco leaves.

[0007] The pipe fitting adapter assembly includes a second soft joint, an elbow and at least one horizontal connecting pipe. The output end of the rotating fan is connected with the horizontal connecting pipe through the elbow, and the horizontal connecting pipe is connected with the rotating air pipe assembly. The air inlet of the rotating air pipe assembly is provided with a plug board for adjusting the air volume.

[0008] Further, the light source control mechanism includes a mirror mounting plate, two groups of light sources, a group of mirrors, a background light source and a light source adjusting mechanism. The two sides of the mirror mounting plate are oppositely provided with light source mounting plates. The light sources and the background light source are arranged between the two light source mounting plates, and the light sources are arranged on the two sides of the background light source. The mirrors are arranged on the mirror mounting plate, and the light source adjusting mechanism is connected with the light sources.

[0009] Preferably, the detection assembly comprises a camera and a camera adjusting assembly, the camera adjusting assembly is arranged on the upper surface or lower surface of the tobacco grade sorting device, and the camera is arranged on the camera adjusting assembly.

[0010] Further, the sorting and removing mechanism comprises a sorting bin, a removing assembly and a discharge pipeline, the removing assembly is arranged above the sorting bin, and the discharge pipeline is arranged at the bin opening below the sorting bin.

[0011] Further preferably, the removing assembly comprises a removing net plate and a group of removing air pipes, the removing net plate is installed on the top of the sorting bin, the removing air pipes are arranged on the removing net plate, and a group of nozzles are arranged in the removing air pipes.

[0012] The separation tank assembly comprises a feeding section, a separation section and a discharge section, the feeding section is arranged below the separation section, the discharge section is arranged above the separation section, and the feeding section and the discharge section are conical.

[0013] Further, the separation tank assembly is provided below with a separation tank supporting assembly, the separation tank supporting assembly comprises a group of supporting columns, the upper part of the supporting column is connected with the separation tank assembly through an adapter, and the upper part of the supporting column is connected with the connecting seat assembly of the feeding section through a T-shaped adapter.

[0014] The working method of the tobacco grade high separation device is as follows: 1) firstly, tobacco is put into the tobacco leaf through the feeding port of the feeding pipe;

[0015] 2) the bottom fan is operated to generate negative pressure at the feeding port, so that the tobacco leaf is taken into the air pipe, and the tobacco leaf is taken into the separation tank assembly under the action of the upward air force generated by the bottom fan, and the tobacco leaf is lifted up;

[0016] 3) the air separation mechanism starts to work to separate the tobacco leaf, that is, the rotating fan is operated to provide upward rotating air force, the cohesive tobacco leaf is rotated upward and transported through the air force of the rotating air pipe assembly located in the circumferential direction of the tank body, the tobacco leaf moves upward in the tank body and is stirred under the action of the rotating air force, the tobacco leaf separated first is moved upward under the action of the air force and is transported out of the separation tank, the cohesive tobacco leaf that is not separated falls downward after moving to a certain height, continues to be separated according to the above process, until the cohesive tobacco leaf is completely separated or is separated into only 2-3 pieces, and then is transported to the top conveying air pipe;

[0017] 4): After the tobacco enters the top conveying air pipe, the upper and lower two groups of detection components scan the upper and lower surfaces of the tobacco respectively, and send the scanned photos to the data processing mechanism for picture analysis and comparison with standard samples to realize tobacco grade evaluation. The data processing mechanism sends the results of tobacco grade evaluation to the control module, and the control module outputs a binning signal to the sorting bin;

[0018] 5): When the tobacco runs to the corresponding bin, the removal component in the sorting and removal mechanism removes the horizontal tobacco at the corresponding bin opening. The removed tobacco is discharged into the designated collection box from the corresponding removal air pipe.

[0019] The connecting seat assembly comprises an arc-shaped mounting plate, a connecting plate and a connecting lug plate. The arc-shaped mounting plate is arranged on the outer side of the feeding section. The connecting lug plate is arranged on the side of the arc-shaped mounting plate away from the feeding section and is connected through the connecting plate. A group of vertical adjusting holes are arranged on the connecting lug plate. A group of horizontal adjusting holes are arranged on the T-shaped adapter. The horizontal adjusting holes are arranged opposite to the vertical adjusting holes, and the connecting lug plate and the T-shaped adapter are connected through bolts.

[0020] The application further comprises an air pipe support and a platform assembly. The top conveying air pipe, the tobacco grade sorting device and the sorting and removal mechanism are arranged on the air pipe support. The platform assembly is arranged on one side of the air pipe support.

[0021] The tail air supplementing mechanism comprises an air supplementing fan and an air supplementing pipe. One end of the air supplementing pipe is connected with the air outlet of the air supplementing fan, and the other end is connected with the top conveying air pipe.

[0022] The above technical solution can achieve the following beneficial effects:

[0023] 1. The sheet material grade high-speed sorting device has a simple structure and a reasonable arrangement. The bottom fan in the air force separating mechanism drives the separation of the compacted material. Through the upward and rotating air force, the tobacco moves upward in the tank and is stirred under the action of the rotating air force. The tobacco that is separated first moves upward under the action of the air force and is conveyed out of the separation tank. The compacted tobacco that is not separated falls downward after running to a certain height, so that the tobacco can complete the falling and stirring effects and avoid being broken in the separation process due to external force or mechanical parts, thereby improving the separation quality of the tobacco.

[0024] 2. The separated tobacco enters the top conveying air pipe, is detected by the upper and lower detection components on the upper and lower surfaces of the tobacco, and the detection accuracy is effectively improved. According to the detection results, the tobacco is removed to the corresponding discharge pipe through the sorting and removal mechanism, so that the tobacco is automatically sorted, and the sampling and grade sorting efficiency can be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure diagram of the high-speed sorting device for the sheet material grade of the application;

[0026] Figure 2 The connection diagram of the separation tank assembly and the wind separation mechanism in the application;

[0027] Figure 3 The structure diagram of the other side of the connection of the separation tank assembly and the wind separation mechanism in the application;

[0028] Figure 4 The structure diagram of the tobacco grade sorting device in the application;

[0029] Figure 5 The structure diagram of the light source control mechanism in the application;

[0030] Figure 6 The structure diagram of the sorting and rejecting mechanism in the application;

[0031] Figure 7 The structure diagram of the rejecting assembly in the application;

[0032] Figure 8 The local installation diagram of the supporting column and the separation tank assembly in the application;

[0033] Figure 9 The structure diagram of the camera adjusting assembly in the application, and the side view of the camera adjusting assembly;

[0034] Figure 10 The operation parameter condition diagram of the bottom fan in the application;

[0035] Figure 11 The operation parameter condition of the air supplement fan in the application;

[0036] Figure 12 The parameter statistical table of each fan in the application;

[0037] Figure 13 The diagram of the wind speed arrangement from small to large in the detection section wind pipe in the application, and the diagram of working condition 1;

[0038] Figure 14 The diagram of the wind speed arrangement from small to large in the detection section wind pipe in the application, and the diagram of working condition 2;

[0039] Figure 15 The diagram of the wind speed arrangement from small to large in the detection section wind pipe in the application, and the diagram of working condition 3;

[0040] Figure 16The schematic diagram of the working condition 4 for arranging the air speed in the air duct from small to large in the application. DETAILED DESCRIPTION

[0041] The application is further illustrated below in combination with the drawings and specific examples. EMBODIMENT

[0042] As Figures 1 to 16 shown in the drawings, the device for high-speed sorting of sheet materials and the like includes a feeding device 1, a separation tank assembly 2, a wind separation mechanism 3, a top conveying air duct 4, a tobacco grade sorting device 5, a set of sorting and removing mechanisms 8, and a tail air supplement mechanism 9. The feeding device 1 includes a bottom fan 11 and a feeding port connecting pipe 12. The bottom fan 11 is connected to one end of the feeding port connecting pipe 12 through a first flexible joint 13. The feeding port connecting pipe 12 is provided with a feeding port. The feeding port is provided with a feeding pipe 14. The separation tank assembly 2 is connected to the end of the feeding port connecting pipe 12 away from the flexible joint 13 through a corner elbow 201. The wind separation mechanism 3 includes at least one rotating air duct assembly 31 and at least one rotating fan 32. One end of the rotating air duct assembly 31 is connected to the rotating fan 32 through a pipe joint adapter assembly 33. The other end of the rotating air duct assembly 31 is connected to the separation tank assembly 2. The rotating air duct assembly 31 is arranged in a spiral shape outside the separation tank assembly 2. An air inlet is tangentially connected to the tank body. The air inlet is provided with an elevation angle. The top conveying air duct 4 is arranged above the separation tank assembly 2 and is connected to the discharge port of the separation tank assembly 2 through a connecting pipe. The tobacco grade sorting device 5 is arranged at one side of the discharge port of the top conveying air duct 4. The tobacco grade sorting device 5 is respectively provided with a detection assembly 6 and a light source control mechanism 7 above and below. The sorting and removing mechanisms 8 are arranged in sequence behind the tobacco grade sorting device 5. The tail air supplement mechanism 9 is arranged at the end of the top conveying air duct 4 away from the tobacco grade sorting device 5.

[0043] It should be noted that the feeding pipe is inclined, which facilitates the smooth entry of tobacco into the feeding port connecting pipe 12.

[0044] In this embodiment, the tobacco grade sorting device 5 includes a detection horizontal connecting pipe 51. An upper detection top plate 52 and a lower detection bottom plate 53 are respectively arranged above and below the detection horizontal connecting pipe 51. Openings are arranged above and below the detection horizontal connecting pipe 51. Glass supports 54 are arranged at the openings. High-transparency wear-resistant glass 55 is arranged on the glass supports 54. The high-transparency wear-resistant glass 55 is pressed tightly by a pressing plate 56.

[0045] The pressing plate 56 includes a long-side pressing plate and a short-side pressing plate. The long-side pressing plate and the short-side pressing plate are respectively pressed against the long side and the short side of the high-transparency wear-resistant glass 55.

[0046] It should be noted that the light source control mechanism 7 cooperates with the high-transparency wear-resistant glass 55.

[0047] As shown in Figure 1 , 2 The pipe adapter assembly 33 includes a second flexible joint 331, an elbow 332, and at least one horizontal connecting pipe 333, the output end of the rotary air blower 32 is connected with the horizontal connecting pipe 333 through the elbow 332, and the horizontal connecting pipe 333 is connected with the rotary air pipe assembly 31.

[0048] The air inlet of the rotary air pipe assembly 31 is provided with an insertion plate for adjusting the air inlet amount.

[0049] It should be noted that the length and number of the horizontal connecting pipes can be adjusted according to actual installation needs, and the length and helicity of the rotary air pipe assembly 31 can also be adjusted according to actual production needs.

[0050] The preferred embodiment of the present case provides four rotary air pipe assemblies 31, and each rotary air blower 32 supplies two rotary air pipe assemblies 31, which reduces the number of rotary air blowers 32 used, and realizes reasonable optimization of the structure and reasonable allocation of resources.

[0051] As shown in Figure 4 , 5 The light source control mechanism 7 includes a mirror mounting plate 71, two groups of light sources 72, a group of mirrors 73, a background light source 74, and a light source adjusting mechanism. The mirror mounting plate 71 is provided with light source mounting plates 75 on both sides, the light sources 72 and the background light source 74 are arranged between the two light source mounting plates 75, and the light sources 72 are arranged on both sides of the background light source 74. The mirror 73 is arranged on the mirror mounting plate 71, and the light source adjusting mechanism is connected with the light source 72. It should be noted that the background light source 74 is a three-primary-color background light source, i.e. an RGB three-primary-color LED light source, which can be set to any color according to actual processing needs, and the light sources 72 on both sides are supplementary light sources arranged in a dot matrix, which can effectively ensure uniform illumination.

[0052] As shown in Figure 3 The detection assembly 6 includes a camera 61 and a camera adjusting assembly 62, the camera adjusting assembly 62 is arranged on the upper surface or the lower surface of the tobacco grade sorting device 5, and the camera 61 is arranged on the camera adjusting assembly 62. It should be noted that the camera 61 is a CCD camera, and it can be understood that it can also be selected according to actual needs.

[0053] As shown in Figure 9As shown, the camera adjusting assembly 62 includes a bottom support 621, a set of rotating supports 622, a rotating support top plate 623, and a camera mounting plate 624. The bottom support 621 is provided with a set of first adjusting holes 6211 on both sides and is fixed to the upper detection top plate 52 by bolts. The rotating supports 622 are oppositely arranged on the outside of the bottom support 621, and the rotating supports 622 are provided with arc-shaped adjusting holes 6221. The rotating supports 622 are connected to the bottom support 621 at the arc-shaped adjusting holes 6221 and below the arc-shaped adjusting holes 6221 by a set of internal hexagonal cylindrical head screws, and the connection is sequentially provided with a chamfered flat washer 625 and an elastic washer 626 from the inside to the outside. The rotating support top plate 623 is arranged on the top of the rotating supports 622 and is connected and fixed by internal hexagonal cylindrical head screws and nuts. The camera mounting plate 624 is provided with second adjusting holes 6241 on the four corners, and is arranged above the rotating support top plate 623 and connected by adjusting bolts. It should be noted that the camera adjusting assembly 62 is provided with arc-shaped adjusting holes 6221 on the first rotating supports 622 and second adjusting holes 6241 on the four corners of the camera mounting plate 624, so that the camera can be rotated in two directions (pitch angle and left-right direction) and adjusted in front-back and height directions as needed, so as to better meet the needs of detection.

[0054] As shown in Figure 6 , 7 The sorting and rejecting mechanism 8 includes a sorting bin 81, a rejecting assembly 82, and a discharge pipeline 83. The rejecting assembly 82 is arranged above the sorting bin 81. The discharge pipeline 83 is arranged at the bin opening below the sorting bin 81 and is connected by an adapter elbow. A discharge plate 84 is arranged below the discharge pipeline 83.

[0055] As shown in Figure 7 The rejecting assembly 82 includes a rejecting mesh plate 821 and a set of rejecting air pipes 822. The rejecting mesh plate 821 is mounted on the top of the sorting bin 81. The rejecting air pipes 822 are arranged on the rejecting mesh plate 821, and a set of nozzles 823 are arranged in the rejecting air pipes 822. It should be noted that the nozzles are connected to a power source, which is compressed air.

[0056] As shown in Figure 1 , 3 The separation tank assembly 2 includes an inlet section 21, a separation section 22, and an outlet section 23. The inlet section 21 is arranged below the separation section 22. The outlet section 23 is arranged above the separation section 22. The inlet section 21 and the outlet section 23 are conical.

[0057] Below the separation tank assembly 2, there is a separation tank support assembly. The separation tank support assembly includes a set of support columns 241. The upper part of the support column 241 is connected to the separation tank assembly 2 via an adapter 242, and the upper part of the support column 241 is connected to the connection seat assembly of the feed section 21 via a T-shaped adapter 243.

[0058] like Figure 8 The connecting seat assembly shown includes an arc-shaped mounting plate 2111, a connecting plate 2112, and a connecting ear plate 2113. The arc-shaped mounting plate 2111 is located on the outside of the feeding section 21, and the connecting ear plate 2113 is located on the side of the arc-shaped mounting plate 2111 away from the feeding section 21 and is connected by the connecting plate 2112. The connecting ear plate 2113 is provided with a set of vertical adjustment holes, and the T-shaped adapter 243 is provided with a set of horizontal adjustment holes. The horizontal adjustment holes are arranged opposite to the vertical adjustment holes, and the connecting ear plate 2113 and the T-shaped adapter 243 are connected by bolts.

[0059] This embodiment also includes a duct support and a platform assembly. The top conveying duct 4, the tobacco grade sorting device 5, and the sorting and rejection mechanism 8 are all mounted on the duct support, and the platform assembly is located on one side of the duct support.

[0060] The tail air supply mechanism 9 includes an air supply fan 91 and an air supply duct 92. One end of the air supply duct 92 is connected to the air outlet of the air supply fan 91, and the other end is connected to the top conveying duct 4 through a second corner bend 93.

[0061] The working method of the tobacco leaf grade sorting device described in this embodiment is as follows: 1): First, the tobacco leaves are fed into the feeding port of the feeding pipe 14;

[0062] 2): When the bottom fan 11 operates, it generates negative pressure at the feeding port, which carries the flattened tobacco leaves into the air duct. Under the upward air force generated by the bottom fan 11, the tobacco leaves are carried into the separation tank assembly 2, which lifts the tobacco leaves.

[0063] 3): The wind-powered separation mechanism 3 starts working to separate the tobacco leaves. The rotating fan 32 operates to provide upward rotating wind force. Through the wind force of the rotating air duct assembly 31 located around the tank body of the separation tank assembly 2, the sticky tobacco leaves are rotated and conveyed upward. The tobacco leaves move upward in the tank body while being agitated by the rotating wind force. The tobacco leaves that are separated first move upward under the action of the wind force and are conveyed to the outside of the separation tank. The unseparated caking tobacco leaves fall downward after running to a certain height and continue to be separated according to the above process until they are completely separated or separated into only 2-3 pieces of caking tobacco leaves, and then conveyed to the top conveying air duct 4.

[0064] 4): After the tobacco leaves enter the top conveying air pipe 4, the upper and lower two groups of detection assemblies 6 scan the upper surface and the lower surface of the tobacco leaves respectively, and send the scanned photos to the data processing mechanism for picture analysis, and compare them with standard samples to realize tobacco grade evaluation. The data processing mechanism delivers the results of tobacco grade evaluation to the control module, and the control module outputs the binning signal and transmits the signal to the sorting bin 81;

[0065] 5): When the tobacco leaves run to the corresponding bin channel, the rejection assembly 82 in the sorting and rejecting mechanism 8 rejects the horizontal tobacco leaves at the corresponding bin opening. The rejected tobacco leaves are discharged into the designated collection box from the corresponding rejection air pipe 822.

[0066] It should be noted that the standard sample in step 4 refers to an industrial grade standard determined by the factory according to shape, color, position, etc., which is generally determined by professional personnel.

[0067] It should be noted that Figures 12 to 15 The detection of the horizontal connection pipe 51 segment in the present application is arranged from small to large, a total of 4 groups of working conditions, 2 groups of flow as input boundary conditions, 2 groups of pressure as boundary input conditions. The airflow generated by the fan generates negative pressure at the feeding port 14, moves upward through the main pipe and the separation tank body, forms a rotating airflow in the tank body, changes to horizontal movement after reaching the top air pipe, and when the airflow is stable at the rejection port, the overflow is small, which can be used for rejection.

[0068] It should be noted that the working method of the tobacco grade high separation device described in the embodiment is not limited to tobacco leaves, and can also meet the separation of other similar tobacco characteristic products.

[0069] The above description is only the preferred embodiment of the present application, and it should be noted that for ordinary skilled persons in the technical field, several improvements can be made without departing from the principles of the present application, and these improvements should also be considered as the protection scope of the present application.

Claims

1. A high-speed sorting device for sheet-like materials, characterized in that: include: The feeding device (1) includes a bottom fan (11) and a feeding port pipe (12). The bottom fan (11) is connected to one end of the feeding port pipe (12) through a first flexible connector (13). The feeding port pipe (12) is provided with a feeding port and a feeding pipe (14) is provided with the feeding port. The separation tank assembly (2) is connected to the end of the feed inlet pipe (12) away from the flexible joint (13) via a corner bend (201); The wind separation mechanism (3) includes at least one rotating duct assembly (31) and at least one rotating fan (32). One end of the rotating duct assembly (31) is connected to the rotating fan (32) through a pipe fitting adapter assembly (33), and the other end is connected to the separation tank assembly (2). The rotating duct assembly (31) is spirally arranged on the outside of the separation tank assembly (2), and the air inlet is tangentially connected to the tank body and has an elevation angle. Top conveying air duct (4), the top conveying air duct (4) is located above the separation tank assembly (2) and is connected to the discharge port of the separation tank assembly (2) through a connecting pipe; The tobacco leaf grading sorting device (5) is located on the discharge port side of the top conveying air duct (4), and the tobacco leaf grading sorting device (5) is equipped with detection components (6) and light source control mechanism (7) on both the top and bottom. A sorting and rejection mechanism (8) is arranged sequentially behind the tobacco leaf grade sorting device (5); Tail-end air supply mechanism (9), the tail-end air supply mechanism (9) is located at the end of the top conveying air duct (4) away from the tobacco leaf grade sorting device (5); The pipe fitting adapter assembly (33) includes a second flexible joint (331), an elbow (332) and at least one horizontal connecting pipe (333). The output end of the rotary fan (32) is connected to the horizontal connecting pipe (333) through the elbow (332), and the horizontal connecting pipe (333) is connected to the rotary duct assembly (31). Furthermore, the air inlet of the rotary duct assembly (31) is provided with a baffle plate for adjusting the air intake volume; The tobacco leaf grading sorting device (5) includes a detection horizontal pipe (51), an upper detection top plate (52) and a lower detection bottom plate (53) are respectively located above and below the detection horizontal pipe (51), the detection horizontal pipe (51) has openings at the top and bottom, a glass bracket (54) is provided at the opening, a high-transparency wear-resistant glass (55) is provided on the glass bracket (54), and the high-transparency wear-resistant glass (55) is pressed by a pressure plate (56) above it, and the light source control mechanism (7) is located above the high-transparency wear-resistant glass (55); The light source control mechanism (7) includes a reflector mounting plate (71), two sets of light sources (72), a set of reflectors (73), a background light source (74), and a light source adjustment mechanism. The reflector mounting plate (71) has light source mounting plates (75) on both sides opposite to each other. The light source (72) and the background light source (74) are located between the two light source mounting plates (75), and the light source (72) is located on both sides of the background light source (74). The reflector (73) is located on the reflector mounting plate (71), and the light source adjustment mechanism is connected to the light source (72). The detection component (6) includes a camera (61) and a camera adjustment component (62). The camera adjustment component (62) is located on the upper or lower surface of the tobacco leaf grading sorting device (5), and the camera (61) is located on the camera adjustment component (62). The camera adjustment assembly (62) includes a bottom bracket (621), a set of rotating brackets (622), a rotating bracket top plate (623), and a camera mounting plate (624). The rotating brackets (622) are located opposite to the bottom bracket (621) on the outside, and the rotating brackets (622) are provided with arc-shaped adjustment holes (6221). The rotating brackets (622) are located at the arc-shaped adjustment holes (6221) and below the arc-shaped adjustment holes (6221) by a set of internal hexagon socket head cap screws. The rotating frame is connected to the bottom bracket (621), and the connection is provided with a chamfered flat washer (625) and an elastic washer (626) from the inside to the outside. The rotating frame top plate (623) is located on the top of the rotating bracket (622) and is fixed by internal hexagonal head screws and nuts. The camera mounting plate (624) is provided with second adjustment holes (6241) on the four corners. The camera mounting plate (624) is located above the rotating frame top plate (623) and is connected by adjustment bolts. The sorting and rejection mechanism (8) includes a sorting bin (81), a rejection component (82), and a discharge pipe (83). The rejection component (82) is located above the sorting bin (81), and the discharge pipe (83) is located at the bin opening below the sorting bin (81). The rejection component (82) includes a rejection screen (821) and a set of rejection air ducts (822). The rejection screen (821) is installed on the top of the sorting bin (81), and the rejection air ducts (822) are located on the rejection screen (821). A set of nozzles (823) is provided inside the rejection air ducts (822). The separation tank assembly (2) includes a feeding section (21), a separation section (22), and a discharge section (23). The feeding section (21) is located below the separation section (22), and the discharge section (23) is located above the separation section (22). The feeding section (21) and the discharge section (23) are conical. A separation tank support assembly is provided below the separation tank assembly (2). The separation tank support assembly includes a set of support columns (241). The upper part of the support column (241) is connected to the separation tank assembly (2) through an adapter (242), and the upper part of the support column (241) is connected to the connection seat assembly of the feeding section (21) through a T-shaped adapter (243).

2. The working method of the high-speed sorting device for sheet materials according to claim 1 is as follows: 1): First, put the tobacco leaves into the feed port of the feed pipe (14); 2): The bottom fan (11) operates, and the tobacco leaves are carried into the separation tank assembly (2) by the upward wind force generated by the bottom fan (11), which lifts the tobacco leaves; 3): The wind separation mechanism (3) starts to work to separate the tobacco leaves. That is, the rotating fan (32) operates to provide upward rotating wind force. Through the wind force of the rotating air duct assembly (31) located around the tank body of the separation tank assembly (2), the caking tobacco leaves are rotated and conveyed upward. The tobacco leaves move upward in the tank body while being agitated by the rotating wind force. The tobacco leaves that are separated first move upward under the action of the wind force and are conveyed to the outside of the separation tank. The caking tobacco leaves that are not separated fall downward after running to a certain height and continue to be separated according to the above process until they are completely separated or separated into only 2-3 pieces of caking tobacco leaves, and then conveyed to the top conveying air duct (4). 4): After the tobacco leaves enter the top conveying duct (4), the upper and lower surfaces of the tobacco leaves are scanned by the upper and lower detection components (6), and the scanned photos are sent to the data processing agency for image analysis and compared with the standard sample to achieve tobacco leaf grade evaluation. The data processing agency sends the tobacco leaf grade determination results to the control module, and the control module outputs the compartment signal and transmits the signal to the sorting compartment (81). 5): When the tobacco leaves are transported to the corresponding storage channel, the horizontal tobacco leaves are removed at the corresponding storage opening by the removal component (82) in the sorting and removal mechanism (8). The removed tobacco leaves are discharged from the corresponding removal air duct (822) into the designated collection box.

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