Winnowing separation device for removing sliver stems in tobacco shreds
By designing a air-selecting and separation device including vibrating screen, flexible tearing parts and removal components, the problem of collision and entanglement of stems and tobacco wires during the tobacco wire selection process is solved, and the quality of tobacco wire and the production quality of cigarettes are improved.
Patent Information
- Application Number
- CN202421700239.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-18
AI Technical Summary
During the process of selecting tobacco silk, the stem and the tobacco silk are prone to colliding and entanglement, resulting in some stems being mixed and taken away by the tobacco silk, and some tobacco silk are collided and fallen by the stem, which in turn affects the quality of the tobacco silk and the production quality of the cigarette.
An air-selecting and separation device is designed, including a first intermittent scale, a vibration screen, a flexible tear, a removal assembly and a feeder arranged sequentially along the conveyor belt. The vibrating screen is initially screened with smoke foam through the screen plate and screen mesh, and the flexible tear piece disperses the stalks and tobacco threads. The removal component collects and separates the tobacco threads and tobacco threads through the material separation unit, the removal unit and the back-doping unit.
Through preliminary screening and dispersion operations, the stem and tobacco are easier to separate subsequently, improving the quality of tobacco and cigarette production quality.
Smart Images
Figure CN222970292U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tobacco processing, and in particular relates to an air selection and separation device for removing tobacco stems. Background Art
[0002] Because of their relatively tight organizational structure, stems and veins have a great impact on the appearance and taste of cigarettes after entering cigarettes. They are the most direct and important factors affecting the quality of cigarettes. These stems and veins must be thoroughly removed during production. Therefore, in the process of tobacco production, a wind selection process is designed. The process task of this process is to separate stems, stem blocks and non-tobacco debris from tobacco to ensure the combustion performance and sensory quality of cigarettes. The main working principle of tobacco wind selection is to use the difference in the suspension speed of tobacco and stems to set a suitable wind field speed to separate tobacco and stems. Since the suspension speed of tobacco (generally <2.5m / s) is much smaller than the suspension speed of stems (generally >4.5m / s), the appropriate wind speed can take away the tobacco, while the stems cannot be taken away because the wind speed is lower than their suspension speed and fall down. Since the flow rate of tobacco is large and the volume of the air separation chamber is limited, one air separation is generally not enough to completely separate tobacco from stems. It is necessary to design a two-stage (or even multi-stage) air separation device for air separation, that is, the material dropped by the first-stage air separation is air-separated again in the second-stage air separation chamber. The wind speed of the first-stage air separation is relatively low, mainly to select pure tobacco, and the wind speed of the second-stage air separation is slightly higher, mainly to separate stems from tobacco. At present, most of the cigarette making processes use the two-stage air separation technology.
[0003] However, in the actual production process, it was found that the rising of tobacco shreds and the sinking of debris such as stems are all completed in a smaller chamber, and it is inevitable that the stems and tobacco shreds will collide and entangle. During air selection, some stems will be carried away by the tobacco shreds, some tobacco will be hit by the falling stems and fall down, some tobacco connected to the stems will also fall down, and some clumped tobacco will fall down due to the increased suspension speed, resulting in the obtained tobacco shreds being of low quality, which in turn affects the production quality of cigarettes. Utility Model Content
[0004] The utility model aims to provide a wind selection and separation device for removing tobacco stems, which solves the problem of low quality of tobacco obtained during wind selection, improves the quality of the obtained tobacco, and further improves the production quality of cigarettes.
[0005] The technical solution adopted by the present utility model to solve its technical problems is to propose an air separation device for removing midribs from cut tobacco, which includes a first intermittent scale, a vibrating sieve, a flexible tearing member, a removal component, and a feeder arranged in sequence along the conveying direction of the conveyor belt; the discharge end of the first intermittent scale is connected to the conveyor belt, the first intermittent scale is used to send the cut tobacco and midrib mixture after primary air separation to the conveyor belt, the vibrating sieve is used to preliminarily screen out tobacco dust, the flexible tearing member is used to disperse agglomerated midribs and cut tobacco, and the removal component is used to collect cut tobacco and transport the cut tobacco to the feeder.
[0006] In an embodiment of the present application, the vibrating sieve includes a sieve plate and a sieve mesh; the sieve plate and the sieve mesh are fixedly connected, the sieve mesh and the sieve plate are arranged parallel to each other, and a plurality of sieve holes are provided on the sieve mesh, and the plurality of sieve holes are arranged in a rectangular array on the sieve mesh.
[0007] In an embodiment of the present application, the flexible tearing member includes a driving motor and a tearing roller, and the driving motor drives the tearing roller to rotate to disperse agglomerated midribs and cut tobacco.
[0008] In an embodiment of the present application, the removal component includes a material distribution unit, a removal unit, and a backmixing unit. The material distribution unit distributes the dispersed midribs and cut tobacco to the removal unit, the removal unit transports the cut tobacco to the backmixing unit, and the backmixing unit transports the cut tobacco to the feeder.
[0009] In an embodiment of the present application, the material distribution unit includes a material distribution vibrating trough, a sorter, and an elastic support member provided between the material distribution vibrating trough and the sorter; through holes are provided on the bottom wall of the material distribution vibrating trough, and midribs and cut tobacco can pass through the through holes and fall on the sorter.
[0010] In an embodiment of the present application, the sorter includes two inclined plates, and the removal units are arranged on both of the two inclined plates.
[0011] In an embodiment of the present application, the removal unit includes a frame provided on one side of the inclined plate, a line array camera and a blowing nozzle provided on the frame. Defective product holes are provided on the inclined plate, and the blowing nozzle blows the midribs into the defective product holes.
[0012] In an embodiment of the present application, the backmixing unit includes a small conveyor belt and a backmixing conveyor belt arranged perpendicular to each other, and a second intermittent scale is provided at the discharge end of the backmixing conveyor belt.
[0013] In an embodiment of the present application, two parallel vertical plates are further provided on the backmixing conveyor belt, and a baffle is fixedly connected between the two vertical plates, and one end of the baffle abuts against the backmixing conveyor belt.
[0014] In an embodiment of the present application, the separation device further includes a transverse conveyor belt provided on the material distribution vibrating trough, and the transverse conveyor belt is used to collect the stick stems falling into the defective product holes.
[0015] The beneficial effects of the present utility model are as follows:
[0016] 1. A pneumatic separation device for removing stick stems from cut tobacco proposed by the present utility model, through a first intermittent scale, a vibrating screen, a flexible tearing member, a removal component, and a feeder arranged in sequence along the conveying direction of the conveyor belt, preliminarily separates the stick stems and cut tobacco before screening the stick stems, making it easier for the stick stems and cut tobacco to be separated in subsequent operations, thereby improving the quality of the obtained cut tobacco and further improving the production quality of cigarettes.
[0017] 2. A pneumatic separation device for removing stick stems from cut tobacco proposed by the present utility model, the screen plate of the vibrating screen is provided with a screen mesh integrally in an L shape, and a plurality of screen holes are processed on one side surface of the screen mesh parallel to the screen plate, and the plurality of screen holes are arranged in a rectangular array. The screen holes are arranged in a rectangular array, ensuring the full utilization of the screening area and maximizing the screening efficiency;
[0018] 3. A pneumatic separation device for removing stick stems from cut tobacco proposed by the present utility model, through holes are processed on the bottom wall of the material distribution vibrating trough, and the surface areas of the four material leveling vibrating troughs divided by the blocking members gradually increase in the feeding direction of the mixture, realizing the uniform distribution and preliminary separation of the materials before sorting, creating favorable conditions for subsequent precise sorting;
[0019] 4. A pneumatic separation device for removing stick stems from cut tobacco proposed by the present utility model, the vibration of the vibration motor not only helps the flow of materials, but also can reduce the accumulation and blockage of materials in the material distribution vibrating trough, improving the separation effect and operation stability of the entire pneumatic separation device;
[0020] 5. A pneumatic separation device for removing stick stems from cut tobacco proposed by the present utility model, the separator is composed of two inclined plates, and the two inclined plates are distributed in a stepped shape. The number and distribution positions of the removal units are adapted to the inclined plates. Due to the inclination of the inclined plates themselves, the mixture can fall step by step during the sorting process, which is conducive to realizing multi-stage sorting. The hierarchical setting enables the materials to undergo two sorts during the sorting process, improving the accuracy and efficiency of sorting. Description of the Drawings
[0021] The accompanying drawings incorporated herein and constituting a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, like reference numerals are used to represent like elements. The drawings in the following description are some embodiments of the present utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0022] Figure 1 Schematic diagram of an air separation device for removing midribs from cut tobacco in an embodiment of the present utility model;
[0023] Figure 2 Connection schematic diagram of a material distribution vibrating trough, a separator and a vibrating motor of an air separation device for removing midribs from cut tobacco in an embodiment of the present utility model;
[0024] Figure 3 Schematic diagram of a removal unit of an air separation device for removing midribs from cut tobacco in an embodiment of the present utility model;
[0025] Figure 4 Schematic diagram of a re - blending unit of an air separation device for removing midribs from cut tobacco in an embodiment of the present utility model;
[0026] Figure 5 Connection schematic diagram of a flexible tearing member and a feeder of an air separation device for removing midribs from cut tobacco in an embodiment of the present utility model.
[0027] In the figure: 1, conveyor belt; 2, first intermittent scale; 3, vibrating screen; 31, sieve plate; 32, sieve mesh; 4, flexible tearing member; 41, driving motor; 42, tearing roller; 43, driving shaft; 44, driving gear; 45, transmission shaft; 46, driven gear; 5, removal assembly; 51, material distribution unit; 511, material distribution vibrating trough; 512, separator; 513, elastic support member; 514, through - hole; 515, blocking member; 516, material leveling vibrating trough; 517, vibrating motor; 52, removal unit; 521, frame; 522, line - array camera; 523, blow nozzle; 524, defective product hole; 525, supplementary light; 53, re - blending unit; 531, small conveyor belt; 532, re - blending conveyor belt; 533, second intermittent scale; 534, vertical plate; 535, baffle; 6, feeder; 7, transverse conveyor belt. Detailed implementation manners
[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention and the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can also be obtained. Additionally, the terms related to the design orientation only represent the relative positional relationship between components, rather than the absolute positional relationship.
[0029] The embodiment of the present invention provides an air separation device for removing midribs from cut tobacco. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , which mainly includes a conveyor belt 1, a first intermittent scale 2, a vibrating screen 3, a flexible tearing member 4, a removal assembly 5, and a feeder 6.
[0030] In this application, given by Figures 1-5 , an air separation device for removing midribs from cut tobacco includes a first intermittent scale 2. The discharge end of the first intermittent scale 2 is provided with a conveyor belt 1 for transporting midribs and cut tobacco. The feeding end of the conveyor belt 1 is provided with a feeder 6, and a vibrating screen 3 is arranged between the conveyor belt 1 and the feeder 6. The vibrating screen 3 is used for preliminarily screening out tobacco dust. A flexible tearing member 4 for tearing and dispersing agglomerated midribs and cut tobacco is arranged on the feeder 6. A material distribution vibrating trough 511 is installed on the feeder 6 away from the conveyor belt 1 through a bracket. A separator 512 is communicated below the material distribution vibrating trough 511. A removal assembly 5 for removing midribs from cut tobacco is arranged on the separator 512. A return blending unit 53 is arranged on the removal assembly 5 for collecting the selected cut tobacco and transporting it to the original secondary air separation feeder. A transverse conveyor belt 7 is arranged on the separator 512 for collecting the removed midribs and transporting them to the original midrib air duct. The first intermittent scale 2 is communicated with the original midrib air duct. Cut a section of the original midrib air duct, then install the conveyor belt 1 at the discharge end of the first intermittent scale 2, and at the same time block the truncated original midrib air duct for temporary reservation. The mixture of cut tobacco and midribs after the initial air separation and screening is transported from the discharge end of the first intermittent scale 2 to the conveyor belt 1. Subsequently, the mixture passes through the vibrating screen 3 during the transportation process. Through the vibration of the vibrating screen 3, the tobacco dust therein is preliminarily screened out, so that the tobacco dust is separated from the larger cut tobacco and midribs. The mixture of cut tobacco after the preliminary screening continues to be transported to the feeder 6. The flexible tearing member 4 arranged above the feeder 6 starts to work, tearing and dispersing the agglomerated midribs and cut tobacco, further breaking the agglomeration state in the material, making it easier for subsequent separation operations, thereby improving the quality of the obtained cut tobacco, and further improving the production quality of cigarettes.
[0031] In this application, a screen mesh in an overall L shape is provided on the screen plate of the vibrating screen 3. Among them, several screen holes are processed on the surface of the screen mesh parallel to the screen plate. The several screen holes are distributed in a rectangular array, and the screen holes are one of semi-circular, elliptical, and circular. Several screen holes are processed on the surface of the screen mesh parallel to the screen plate. These screen holes are distributed in a rectangular array, ensuring the full utilization of the screening area and maximizing the screening efficiency. When the vibrating screen 3 is working, the screen mesh reciprocates under the action of vibration. The material enters from above the screen mesh. Due to the vibration of the screen mesh, the material jumps and rolls on the screen mesh. The smaller tobacco dust particles are light in weight and small in volume, and easily fall through the screen holes below the screen mesh, thus realizing the preliminary separation from the larger particles of tobacco leaves and stems. The shape of the screen holes can be selected according to on-site processing, which can reduce the cutting and damage to the material particles, avoid generating too many fragments, and ensure the screening efficiency at the same time.
[0032] In this application, the flexible tearing member 4 includes a driving motor 41. The driving motor 41 is fixedly installed on the side wall of the feeder 6. The output end of the driving motor 41 is fixedly installed with a driving shaft 43 that penetrates and extends to the inside of the feeder 6. An active gear 44 is fixedly installed on the outer side of the driving shaft 43. A transmission shaft 45 is also rotatably connected to the side wall of the feeder 6. A driven gear 46 meshing with the active gear 44 is fixedly installed on the transmission shaft 45. Tearing rollers 42 are arranged on both the driving shaft 43 and the transmission shaft 45. The driving motor 41 provides power for the entire tearing action. As the driving motor 41 rotates, the driving shaft 43 also starts to rotate. On the outer side of the driving shaft 43, an active gear 44 is fixedly installed. At the same time, a transmission shaft 45 is rotatably connected to the side wall of the feeder 6, and a driven gear 46 is also installed on the transmission shaft 45. The driven gear 46 meshes with the active gear 44. Therefore, when the driving shaft 43 rotates, through the transmission of the gears, the transmission shaft 45 also starts to rotate synchronously. The two tearing rollers 42 rotate as their respective shafts rotate, tearing and dispersing the material passing between them. Moreover, the distance between the transmission shaft 45 and the driving shaft 43 can be adjusted by fixing bolts, and correspondingly, the driven gear 46 adapted to the active gear 44 is replaced, making it more flexible.
[0033] In this application, the rejection assembly 5 includes a material distribution unit 51, a rejection unit 52, and a re-incorporation unit 53. The material distribution unit 51 transports the dispersed stems and tobacco leaves to the rejection unit 52 in sections. The rejection unit 52 transports the tobacco leaves to the re-incorporation unit 53. The re-incorporation unit 53 transports the tobacco leaves to the feeder 6.
[0034] In this application, the material distributing vibrating trough 511 is installed on the sorting device 512 through an elastic support member 513. Through holes 514 are machined on the bottom wall of the material distributing vibrating trough 511. Among them, stems and cut tobacco can fall through the through holes 514 onto one side surface of the sorting device 512. Three blocking members 515 are arranged in the through holes 514. The three blocking members 515 divide the through holes 514 into four material leveling vibrating troughs 516. A vibrating motor 517 is also arranged on the material distributing vibrating trough 511. The material distributing vibrating trough 511 is installed on the sorting device 512 through the elastic support member 513, allowing the material distributing vibrating trough 511 to have a certain degree of freedom during vibration, so as to better achieve the uniform distribution and transmission of materials. Through holes 514 are machined on the bottom wall of the material distributing vibrating trough 511, which is the channel for the mixture to enter the sorting device 512 from the material distributing vibrating trough 511. The surface areas of the four material leveling vibrating troughs 516 divided by the blocking members 515 gradually increase in the feeding direction of the mixture, realizing the uniform distribution and preliminary separation of materials before sorting, creating favorable conditions for subsequent precise sorting. The vibration of the vibrating motor 517 not only helps the flow of materials, but also can reduce the accumulation and blockage of materials in the material distributing vibrating trough 511, improving the separation effect and operation stability of the entire air separation device.
[0035] In this application, the sorting device 512 is composed of two inclined plates. The two inclined plates are distributed in a stepped manner. The number and distribution positions of the rejection units 52 are adapted to the inclined plates. One inclined plate and one rejection unit 52 form a primary visual sorting device, and the other inclined plate and the other rejection unit 52 form a secondary visual sorting device. The primary visual sorting device is located between the secondary visual sorting device and the material distributing vibrating trough 511. The rejection unit 52 includes a frame 521. The frame 521 is arranged on one side surface of the inclined plate, and its number and distribution positions are adapted to the inclined plate. A line array camera 522 is arranged on the frame 521, and the shooting end is aligned with the surface of the inclined plate. A supplementary light 525 is also arranged on the frame 521, and its illumination end is aligned with the surface of the inclined plate. A blowing nozzle 523 is arranged on the frame 521 on one side of the supplementary light 525, and the blowing end is aligned with the surface of the inclined plate. A number of defective product holes 524 are equally divided into two groups and opened on the inclined plate;
[0036] Due to the inclination of the inclined plate itself, the mixture can fall step by step during the sorting process, which is conducive to realizing multi-stage sorting. The hierarchical setting enables the material to undergo two visual sorts during the sorting process, improving the accuracy and efficiency of sorting. The rejection unit 52 captures the image information on the surface of the material through the line array camera 522. The system analyzes and processes this image information to identify the stems and cut tobacco in the material. In order to obtain better image quality during the shooting process, a fill light 525 is also provided on the frame 521, and its illumination end is aligned with the surface of the inclined plate. The fill light 525 can provide uniform and sufficient light to ensure that the line array camera 522 can clearly capture the details of the material. When the processing system identifies the stems by analyzing the image information, it will immediately send an instruction to the blow nozzle 523. The blow nozzle 523 will quickly blow out a high-speed air flow to blow the identified stems off the inclined plate and into the defective product hole 524.
[0037] In the present application, the reblending unit 53 includes a small conveyor belt 531. The small conveyor belt 531 is connected to the ground through a mounting frame. The inclined surface of the inclined plate is aligned above the small conveyor belt 531. A reblending conveyor belt 532 perpendicular to it is provided on the small conveyor belt 531. A second intermittent scale 533 is provided at the discharge end of the reblending conveyor belt 532. The pure cut tobacco screened by the rejection assembly 5 slides onto the small conveyor belt 531 and then is transported to the reblending conveyor belt 532 perpendicular to it. This vertical layout helps save space and improve the transmission efficiency. The second intermittent scale 533 accurately measures the cut tobacco transported over, ensuring that the amount of cut tobacco incorporated each time is accurate and consistent. Through the measurement of the second intermittent scale 533, precise control of the amount of cut tobacco incorporated can be achieved, thus meeting the requirements in the production process.
[0038] In the present application, two vertical plates 534 are also provided on the reblending conveyor belt 532. The two vertical plates 534 are arranged parallel to each other, and a baffle 535 is fixedly installed between the two vertical plates 534. One end of the baffle 535 is in contact with the transmission end of the reblending conveyor belt 532;
[0039] In the present application, the transverse conveyor belt 7 includes the transverse conveyor belt 7, which is fixedly installed on the material distributing vibrating trough 511, and the quantity and distribution position are adapted to the inclined plates. Among them, the defective product holes 524 can be aligned with the transverse conveyor belt 7. A first discharge hopper is arranged at the discharge end of one of the transverse conveyor belts 7, and a second discharge hopper communicating with the first discharge hopper is arranged at the discharge end of the other transverse conveyor belt 7, and the second discharge hopper is processed on the original stem stick air duct. The transverse conveyor belt 7 is fixedly installed on the material distributing vibrating trough 511, and its quantity and distribution position are adapted to the inclined plates, ensuring that the defective product holes 524 on each inclined plate can be aligned with the corresponding transverse conveyor belt 7, so that the stem sticks falling from the defective product holes 524 can directly fall on the transverse conveyor belt 7 and thus be quickly and effectively collected. At the same time, the first discharge hopper and the second discharge hopper are communicated with each other, so that the stem sticks collected by the two transverse conveyor belts 7 can finally converge on the same processing path.
[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.
[0041] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present invention are only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.
Claims
1. A wind separation device for removing tobacco stems, characterized in that: The invention comprises a first intermittent scale (2), a vibrating screen (3), a flexible tearing piece (4), a rejecting assembly (5) and a feeder (6) which are arranged in sequence along the transport direction of a conveyor belt (1); the discharge end of the first intermittent scale (2) is connected to the conveyor belt (1); the first intermittent scale (2) is used to deliver the mixture of shredded tobacco and tobacco stems after initial air selection to the conveyor belt (1); the vibrating screen (3) is used to preliminarily screen out tobacco foam; the flexible tearing piece (4) is used to disperse clumped tobacco stems and shredded tobacco; and the rejecting assembly (5) is used to collect the shredded tobacco and transmit it to the feeder (6).
2. The wind separation device for removing the tobacco stems according to claim 1 is characterized in that: The vibrating screen (3) comprises a sieve plate (31) and a sieve mesh (32); the sieve plate (31) and the sieve mesh (32) are fixedly connected, the sieve mesh (32) and the sieve plate (31) are arranged parallel to each other, the sieve mesh (32) is provided with a plurality of sieve holes, and the plurality of sieve holes are arranged in a rectangular array on the sieve mesh (32).
3. The wind separation device for removing the tobacco stems according to claim 1 is characterized in that: The flexible tearing member (4) comprises a driving motor (41) and a tearing roller (42), wherein the driving motor (41) drives the tearing roller (42) to rotate so as to disperse clumped tobacco stems and shredded tobacco.
4. The wind separation device for removing the tobacco stems according to claim 1 is characterized in that: The rejecting assembly (5) comprises a material dividing unit (51), a rejecting unit (52) and a re-blending unit (53); the material dividing unit (51) conveys dispersed tobacco stems and tobacco shreds to the rejecting unit (52); the rejecting unit (52) conveys tobacco shreds to the re-blending unit (53); and the re-blending unit (53) conveys tobacco shreds to the feeder (6).
5. The wind separation device for removing the tobacco stems according to claim 4 is characterized in that: The material dividing unit (51) comprises a material dividing vibration groove (511), a classifier (512), and an elastic support member (513) arranged between the material dividing vibration groove (511) and the classifier (512); a through hole (514) is arranged on the bottom wall of the material dividing vibration groove (511), and tobacco stems and shredded tobacco can pass through the through hole (514) and fall onto the classifier (512).
6. The wind separation device for removing the tobacco stems according to claim 5 is characterized in that: The sorter (512) comprises two inclined plates, and the rejection units (52) are arranged on both inclined plates.
7. The wind separation device for removing the tobacco stems according to claim 6 is characterized in that: The rejection unit (52) comprises a frame (521) arranged on one side of the inclined plate, a linear array camera (522) and a blowing nozzle (523) arranged on the frame (521), a defective product hole (524) being provided on the inclined plate, and the blowing nozzle (523) blowing the stick stem into the defective product hole (524).
8. The wind separation device for removing the tobacco stems according to claim 7 is characterized in that: The back-blending unit (53) comprises a small conveyor belt (531) and a back-blending conveyor belt (532) which are arranged perpendicular to each other, and a second intermittent scale (533) is provided at the discharge end of the back-blending conveyor belt (532).
9. The wind separation device for removing the tobacco stems according to claim 8, characterized in that: The remixing conveyor belt (532) is also provided with two mutually parallel vertical plates (534), a baffle plate (535) is fixedly connected between the two vertical plates (534), and one end of the baffle plate (535) is in contact with the remixing conveyor belt (532).
10. The wind separation device for removing the tobacco stems according to claim 7, characterized in that: The separation device further comprises a transverse conveyor belt (7) disposed on the material separation vibration groove (511), wherein the transverse conveyor belt (7) is used to collect the stick stems that fall into the defective product holes (524).