Multi-stage accelerated birdling precise separation device and working method

Abstract

The application discloses a kind of multi-stage acceleration birdling accurate separation equipment and working method, comprising: sequentially arranged first channel, second channel, first slope, third channel, second slope and separation channel, the conveying speed from first channel to separation channel is sequentially increased, the arrangement height from first channel to separation channel is sequentially reduced;A first slide is arranged between the first channel and the second channel, and the conveying direction of the first slide and the first channel is perpendicular, so that the stacked and side-by-side chicklings are transferred to the second channel in front-back position;A slope gantry support is arranged on the second slope, the two ends of the slope gantry support are connected with the two sides of the second slope, and a detection device is arranged on the slope gantry support. The problems of poor separation effect caused by the single-direction differential separation mode of the existing device and the difficulty in monitoring and identifying caused by the difficulty in maintaining the posture of the birdling during horizontal conveying are solved.

Description

Technical Field

[0001] This invention belongs to the field of separation equipment technology, specifically relating to a multi-stage accelerated precise separation device for poultry chicks and its working method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] In modern poultry farming, automated processes such as automatic counting and packing of chicks and automatic eye immunization place extremely high demands on the precise separation of chicks. To ensure efficient and accurate execution of each process, chicks must be separated one by one and then proceed to the corresponding processing stages in an orderly manner. Existing chick separation technology and equipment mostly rely on at least two belt conveyors and photoelectric sensors, processing chicks solely through a single-direction differential speed separation principle. In practical applications, it is difficult to effectively solve the problem of chick stacking, frequently resulting in multiple chicks sticking together during transport, leading to severely insufficient separation accuracy and failing to meet the feeding requirements of subsequent high-precision processes. Furthermore, existing equipment lacks a ramp conveyor structure design, making it difficult for chicks to maintain a stable posture during horizontal transport. They are prone to rolling, lying on their sides, and other irregular postures, which not only seriously affect the accuracy of counting but also interfere with image acquisition quality, leading to feature recognition errors. It is also detrimental to the precise positioning of automatic eye immunization operations, easily resulting in missed or incorrect spraying, greatly reducing immunization efficiency and quality. In addition, the single-leaf separation device for large-leaf crops uses multiple sets of transmission separation sections and speed difference of clamping belts to achieve single-leaf separation of large-leaf crops. However, it also has defects when directly applied to poultry chick separation scenarios. The reason is that the unidirectional differential speed separation mode cannot cope with the characteristics of small individual poultry chicks and easy aggregation, making it difficult to achieve effective separation. The lack of a ramp conveyor structure leads to the lack of poultry chick posture control, which cannot meet the strict requirements for posture consistency and stability in the automated poultry chick processing process. Summary of the Invention To address the aforementioned problems, this invention provides a multi-stage accelerated precision separation device and working method for poultry chicks, which solves the problem of poor separation effect caused by the single-direction differential speed separation mode of existing devices, as well as the difficulty in maintaining stable posture of poultry chicks during horizontal transport, leading to difficulties in monitoring and identification.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: In a first aspect, the present invention provides a multi-stage accelerated precision separation device for poultry chicks, comprising: a primary channel, a secondary channel, a primary ramp, a tertiary channel, a secondary ramp, and a separation channel arranged in sequence, wherein the conveying speed from the primary channel to the separation channel increases sequentially, and the arrangement height from the primary channel to the separation channel decreases sequentially. A primary slide is provided between the primary channel and the secondary channel, and the primary slide is perpendicular to the conveying direction of the primary channel, so that the stacked and side-by-side seedlings are conveyed to the secondary channel in a front-to-back position; a support is provided on the secondary slope, and the two ends of the support are connected to the two sides of the secondary slope; a detection device is provided on the gantry of the slope for counting, photographing and spraying the seedlings with eye immunization.

[0005] As a further implementation, a separation gantry is provided at the end of the primary channel away from the primary slide. Rubber rods are provided at the lower part of the crossbeam of the separation gantry. There are multiple rubber rods and they are evenly arranged along the length of the crossbeam to separate the gathered seedlings.

[0006] As a further implementation, the primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and separation channel are all composed of a support, a conveyor belt, a drive roller, a driven roller, and a drive motor. The drive roller and driven roller are respectively located at both ends of the support, the transmission belt is installed on the drive roller and driven roller, and the drive motor is located on one end of the support and connected to the drive roller.

[0007] As a further implementation, the primary slide consists of multiple slide plates, the width of which is adjustable to accommodate the size of the seedlings; one side of each slide plate is fixedly connected to the support of the primary channel, and the other side is provided with a fixing plate. A height limiting rod is provided on the fixing plate, which is also used to fix the fixing plate to the support of the primary channel.

[0008] As a further implementation, a channel gantry is fixedly installed above the primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and the separated channel. Multiple partitions are fixedly installed on the lower surface of the crossbeams of the channel gantry, and the length direction of the partitions is arranged along the running direction of the conveyor belt.

[0009] As a further implementation, a secondary slide is provided between the secondary channel and the primary ramp. The secondary slide has the same structure as the primary slide. The slide plate of the primary slide is inclined between the primary channel and the secondary channel, and the slide plate of the secondary slide is inclined between the secondary channel and the primary ramp.

[0010] As a further implementation, a pneumatic blowing mechanism is also provided on the crossbeam of the inclined gantry frame. The blowing mechanism consists of multiple blowing nozzles, and the angle of the blowing nozzles is adjustable, which is used to blow seedlings of different sizes into channels of different widths.

[0011] As a further implementation, the width of the slide plate of the first-level slide is greater than the width of the slide plate of the second-level slide, so as to reduce the friction between the seedling and the side wall of the slide plate.

[0012] As a further implementation, the spacing between adjacent partitions on the primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and separated channel gradually increases in sequence to prevent seedlings from hitting the ends of the partitions at the junctions of each level of channel and each level of ramp.

[0013] Secondly, the present invention also provides a method for operating a multi-stage accelerated precise separation device for poultry chicks, comprising the following steps: S1. After the seedlings are transported to the primary channel by the conveying device, they are first separated by rubber rods to separate the gathered seedlings. Then the seedlings are transported to the partitions and separated into multiple channels formed by the partitions. After that, they enter the primary slide to separate and stack the seedlings for the first time. S2. Then the seedlings enter the secondary channel. Since the conveying speed of the secondary channel is greater than that of the primary channel, the spacing between the seedlings is initially widened for initial separation. Then they enter the secondary slide to further separate the seedlings that are side by side or stacked. Then they enter the primary ramp. The conveying speed of the primary ramp is greater than that of the secondary channel, which widens the spacing between the seedlings again. S3. After that, the seedlings enter the third channel through the first-level slope. The conveying speed of the third channel is greater than that of the first-level slope. The spacing between the seedlings is widened for the third time. Then, they enter the second-level slope. The conveying speed of the second-level slope is greater than that of the third-level channel. The spacing between the seedlings is widened for the fourth time. Then, they enter the blowing mechanism. The blowing nozzles send the seedlings into the correct separated channels.

[0014] Compared with the prior art, the advantages and positive effects of this invention are: The present invention features progressively increasing conveying speeds from the primary channel to the separation channel, allowing the chicks to gradually increase in distance and achieve precise separation. The arrangement height of the primary channel to the separation channel decreases progressively, and the slide rails work together to separate side-by-side and stacked chicks into front-and-back positions, effectively dispersing the chicks. A primary slide rail is provided between the primary and secondary channels, and the conveying direction of the primary slide rail is perpendicular to that of the primary channel. This allows two chicks to fall simultaneously from the primary channel when they are side-by-side in the channel, changing their direction of movement and positioning them front-and-back in the direction of movement of the primary slide rail, thus solving the problem of lateral side-by-side chicks. When two chicks are high-speed in the channel... When stacking seedlings in both lateral and vertical directions, the stacked seedlings are restricted by the height limit bar of the first-level slide as they slide on the slide. After the seedlings below pass through, the blocked seedlings fall down. The seedlings at the front of the first-level slide come into contact with the second-level channel first and are transported away first, thus effectively solving the problem of stacking seedlings in both lateral and vertical directions. A support is set on the second-level slope, with both ends of the support connected to the two sides of the second-level slope. The use of a powered ramp conveyor can effectively maintain the posture of the seedlings, which is conducive to photographing the seedlings. A detection device is set on the ramp gantry to count, photograph, and spray the seedlings with eye immunization, so as to facilitate the accurate separation and classification of the seedlings in the future.

[0015] The present invention has a separation gantry at the end of the primary channel away from the primary slide. Rubber rods are provided at the lower part of the crossbeam of the separation gantry. There are multiple rubber rods and they are evenly arranged along the length of the crossbeam. The rubber rods are mainly used to perform preliminary separation of the cluster of seedlings, reduce the density of local areas on the primary channel, and allow the seedlings to be distributed more evenly on the primary channel, so as to prepare for the subsequent separation.

[0016] The invention also includes a secondary slide between the secondary channel and the primary ramp, which works on the same principle as the primary slide, to separate seedlings that are side-by-side or stacked. A pneumatic blowing mechanism is also installed on the crossbeam of the ramp gantry. This mechanism consists of multiple air nozzles with adjustable angles, allowing for targeted blowing of seedlings of different sizes into channels of varying widths. When the gap between two seedlings is small, the blowing mechanism, after detection, separates two identical or different seedlings into the appropriate channels. The spray structure does not damage the seedlings and ensures accurate separation even when seedlings are close together. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Figure 1This is a schematic diagram of the multi-stage accelerated precise separation device for poultry chicks according to the present invention; Figure 2 This is a schematic diagram of the primary channel and the separation gantry structure of the present invention; Figure 3 This is a schematic diagram of the first-stage slide structure of the present invention; Figure 4 This is a side view of the first-stage slide of the present invention; Figure 5 This is a schematic diagram of the structure of the secondary ramp, the spraying mechanism, and the detection device of the present invention.

[0019] In the diagram: 1. Primary channel; 2. Secondary channel; 3. Primary ramp; 4. Tertiary channel; 5. Secondary ramp; 6. Separated channel; 7. Primary slide; 8. Secondary slide; 9. Separation gantry; 10. Rubber rod; 11. Channel gantry; 12. Partition; 13. Slide plate; 14. Fixing plate; 15. Height limit bar; 16. Conveyor belt; 17. Drive roller; 18. Drive motor; 19. Support; 20. Ramp gantry; 21. Detection device; 22. Spraying mechanism. Detailed Implementation

[0020] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. Example 1 This embodiment discloses a multi-stage accelerated precision separation device for poultry chicks, such as... Figures 1-5 As shown, it includes: a primary channel 1, a secondary channel 2, a primary ramp 3, a tertiary channel 4, a secondary ramp 5, and a separation channel 6 arranged in sequence. The conveying speed increases sequentially from the primary channel 1 to the separation channel 6, allowing the seedlings to gradually increase in spacing and achieve precise separation of the seedlings. The arrangement height decreases sequentially from the primary channel 1 to the separation channel 6, and together with the slide, the side-by-side and stacked seedlings are separated into front and back positions, achieving effective dispersion of the seedlings. A primary slide 7 is provided between the primary channel 1 and the secondary channel 2, and the primary slide 7 is perpendicular to the conveying direction of the primary channel 1. This allows stacked and side-by-side chicks to be conveyed to the secondary channel 2 in a front-back position. When two chicks are side-by-side in the primary channel 1, they fall simultaneously from the primary channel 1, changing their direction of movement. The two chicks then move to a front-back position along the primary slide 7, solving the problem of lateral side-by-side arrangement of chicks. When two chicks are stacked vertically in the primary channel 1, they fall simultaneously from the primary channel 1. As the chicks slide on the primary slide 7, the stacked chicks are restricted by the height limit bar 15 of the primary slide 7, thus being blocked by the height limit. After the seedlings pass through, the blocked seedlings fall down, so the two seedlings in the direction of movement of the first-level slide 7 become one in front of the other. The seedling at the front end of the first-level slide 7 comes into contact with the second-level channel 2 first and is transported away first, thus effectively solving the problem of seedling stacking in both the horizontal and vertical directions. The second-level ramp 5 is equipped with a support 19, the two ends of which are connected to the two sides of the second-level ramp 5. The use of a powered ramp conveyor can effectively maintain the posture of the seedlings, which is conducive to taking pictures of the seedlings. The ramp gantry 20 is equipped with a detection device 21 for counting, photographing and spraying eyes to immunize the seedlings, so as to facilitate the accurate separation and classification of the seedlings in the future.

[0022] As a further implementation, a separation gantry 9 is provided at the end of the primary channel 1 away from the primary slide 7. Rubber rods 10 are provided at the lower part of the crossbeam of the separation gantry 9. There are multiple rubber rods 10 and they are evenly arranged along the length of the crossbeam to separate the clustered seedlings. The rubber rods 10 mainly perform preliminary separation of the clustered seedlings, reduce the density in local areas of the primary channel 1, and allow the seedlings to be distributed more evenly on the primary channel 1, preparing for the subsequent separation.

[0023] As a further implementation, the primary channel 1, secondary channel 2, primary ramp 3, tertiary channel 4, secondary ramp 5, and separation channel 6 are all composed of a support 19, a conveyor belt 16, a drive roller 17, a driven roller, and a drive motor 18. The drive roller 17 and the driven roller are respectively located at both ends of the support 19. The transmission belt is installed on the drive roller 17 and the driven roller. The drive motor 18 is located on one side of the end of the support 19 and is connected to the drive roller 17, for separating the seedlings at different conveying speeds.

[0024] As a further implementation, the primary slide 7 consists of multiple slide plates 13, the width of which is adjustable to accommodate the size of the seedlings. One side of each slide plate 13 is fixedly connected to the support 19 of the primary channel 1, and the other side is provided with a fixing plate 14. A height limiting rod 15 is provided on the fixing plate 14, which is also used to fix the fixing plate 14 to the support 19 of the primary channel 1. The height limiting rod 15 can be selected as a telescopic rod or a detachable fixing rod, which works with the slide plate 13 to adjust the width of the slide plate 13, thereby separating the seedlings and preventing them from falling side by side on the slide plate 13.

[0025] As a further implementation, a channel gantry 11 is fixedly installed above the primary channel 1, secondary channel 2, primary ramp 3, tertiary channel 4, secondary ramp 5, and the separated channel 6. Multiple partitions 12 are fixedly installed on the lower surface of the crossbeams of the channel gantry 11. The length direction of the partitions 12 is arranged along the running direction of the conveyor belt 16, which is used to divide the channels and ramps of each level into multiple conveying channels. On the one hand, this improves the separation efficiency, and on the other hand, it can cooperate with the detection device 21 and the blowing mechanism 22 to classify and convey seedlings of different specifications.

[0026] As a further implementation, a secondary slide 8 is also provided between the secondary channel 2 and the primary ramp 3. The secondary slide 8 has the same structure as the primary slide 7. The slide plate 13 of the primary slide 7 is inclined between the primary channel 1 and the secondary channel 2, and the slide plate 13 of the secondary slide 8 is inclined between the secondary channel 2 and the primary ramp 3. When two chicks appear side by side in the secondary channel 2, they fall from the secondary channel 2 simultaneously, changing their direction of movement for the second time. In the direction of movement of the secondary slide 8, the two chicks become one in front of the other, thus resolving the issue. To solve the problem of seedlings stacking side-by-side: When two seedlings are stacked vertically in the channel, they fall simultaneously from the upper channel. As the seedlings slide on the slide, the stacked seedlings are restricted by the height limit bar 15 of the first-level slide 7, and are blocked by the height limit. After the seedling below passes, the blocked seedling falls down. Therefore, in the direction of movement of the first-level slide 7, the two seedlings become one in front of the other. The seedling at the front of the first-level slide 7 contacts the second-level channel 2 first and is transported away first, thus effectively solving the problem of seedling stacking in both horizontal and vertical directions.

[0027] As a further implementation, a pneumatic blowing mechanism 22 is also provided on the crossbeam of the inclined gantry frame 20. The blowing mechanism 22 consists of multiple blowing nozzles, and the angle of the blowing nozzles is adjustable. It is used to blow chicks of different sizes into channels of different widths. When the gap between two chicks is small, after the chicks are detected, the blowing mechanism 22 blows them, which can separate two identical or two different chicks into the channels that the two chicks should enter. The spray structure will not damage the chicks, and at the same time, it can achieve accurate separation when the distance between two chicks is close.

[0028] As a further implementation, the width of the slide plate 13 of the first-level slide 7 is greater than the width of the slide plate 13 of the second-level slide 8, so as to reduce the friction between the seedling and the side wall of the slide plate 13.

[0029] As a further implementation, the spacing between adjacent partitions 12 on the primary channel 1, secondary channel 2, primary ramp 3, tertiary channel 4, secondary ramp 5 and the separated channel 6 gradually increases in sequence to prevent seedlings from hitting the ends of partitions 12 at the connection points of each channel and each ramp.

[0030] Example 2 This embodiment provides a working method for a multi-stage accelerated precision separation device for poultry chicks, including the following steps: S1. After the seedlings are conveyed to the primary channel 1 by the conveying device, they are first separated by rubber rods 10 to initially separate the clustered seedlings, reducing the density in local areas of the primary channel 1 and allowing the seedlings to be distributed more evenly on the primary channel 1. This separates the clustered seedlings, and then the seedlings are conveyed to partitions 12, where they are separated into multiple channels formed by partitions 12. After that, they enter the primary slide 7 for the initial separation of stacked seedlings. When two seedlings appear side by side, they fall simultaneously from the primary channel 1, changing their direction of movement. By changing the two seedlings to a front-back position, when the two seedlings stack in the height direction as they appear in the right channel, they fall from the upper channel at the same time. When the seedlings slide on the slide, the stacked seedlings will be restricted in the height direction and blocked by the height restriction. After the seedling below passes, the blocked seedling falls down. Therefore, by changing the two seedlings to a front-back position in the movement direction of the first-level slide 7, the problem of seedling stacking is solved. The seedling at the front of the first-level slide 7 first contacts the second-level channel 2 and is transported away first, thus effectively solving the problem of seedling stacking in both the horizontal and vertical directions. S2. Then the seedlings enter the secondary channel 2. Since the conveying speed of the secondary channel 2 is greater than that of the primary channel 1, the spacing between the seedlings is initially widened, and the seedlings are separated for the first time. Then they enter the secondary slide 8. The working principle is the same as that of the primary slide 7. The seedlings are separated for the second time if they are side by side or stacked. Then they enter the primary ramp 3. The conveying speed of the primary ramp 3 is greater than that of the secondary channel 2, which widens the spacing between the seedlings again. S3. Afterwards, the seedlings enter the third-level channel 4 through the first-level ramp 3. The conveying speed of the third-level channel 4 is greater than that of the first-level ramp 3, which widens the gap between the seedlings for the third time. Then, they enter the second-level ramp 5. The conveying speed of the second-level ramp 5 is greater than that of the third-level channel 4, which widens the gap between the seedlings for the fourth time. Then, they enter the blowing mechanism 22. The blowing nozzles send the seedlings into the correct separation channels 6. When the gap between two seedlings is small, after the seedlings are detected, the blowing mechanism 22 blows them, which can separate two identical or two different seedlings into the two channels that the seedlings should enter. The spray structure will not damage the seedlings, and at the same time, it can achieve accurate separation when the distance between two seedlings is close.

[0031] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A multi-stage accelerated precision separation device for poultry chicks, characterized in that, include: The primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and separation channel are arranged in sequence. The conveying speed increases sequentially from the primary channel to the separation channel, and the arrangement height decreases sequentially from the primary channel to the separation channel. A primary slide is provided between the primary channel and the secondary channel, and the primary slide is perpendicular to the conveying direction of the primary channel, so that the stacked and side-by-side seedlings are conveyed to the secondary channel in a front-to-back position; a support is provided on the secondary slope, and the two ends of the support are connected to the two sides of the secondary slope; a detection device is provided on the gantry of the slope for counting, photographing and spraying the seedlings with eye immunization. The primary slide consists of multiple slide plates, the width of which is adjustable to accommodate the size of the seedlings. One side of each slide plate is fixedly connected to the support of the primary channel, and the other side is provided with a fixing plate. The fixing plate is equipped with a height limiting bar, which is also used to fix the fixing plate to the support of the primary channel. When two chicks appear side-by-side in the primary channel, they fall simultaneously from the primary channel, changing their direction of movement. In the direction of movement on the primary slide, the two chicks become one in front of the other, resolving the problem of chicks being side-by-side laterally. When two chicks are stacked vertically in the primary channel, they fall simultaneously from the primary channel. As the chicks slide on the primary slide, the stacked chicks are restricted by the height limit bar of the primary slide, being blocked by the height limit. After the lower chick passes, the blocked chick falls down, so in the direction of movement on the primary slide, the two chicks become one in front of the other. The chick at the front of the primary slide contacts the secondary channel first and is transported away first, thus effectively solving the problem of chicks stacking in both the horizontal and vertical directions.

2. The multi-stage accelerated precision separation device for poultry chicks as described in claim 1, characterized in that, A separation gantry is provided at the end of the primary channel away from the primary slide. Rubber rods are provided at the lower part of the crossbeam of the separation gantry. There are multiple rubber rods and they are evenly arranged along the length of the crossbeam to separate the gathered seedlings.

3. The multi-stage accelerated precision separation device for poultry chicks as described in claim 1, characterized in that, The primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and separation channel are all composed of a support, a conveyor belt, a drive roller, a driven roller, and a drive motor. The drive roller and driven roller are respectively located at both ends of the support. The conveyor belt is installed on the drive roller and driven roller. The drive motor is located on one end of the support and is connected to the drive roller.

4. The multi-stage accelerated precision separation device for poultry chicks as described in claim 3, characterized in that, A channel gantry is fixedly installed above the primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and the separated channel. Multiple partitions are fixedly installed on the lower surface of the crossbeams of the channel gantry, and the length direction of the partitions is arranged along the running direction of the conveyor belt.

5. The multi-stage accelerated precision separation device for poultry chicks as described in claim 1, characterized in that, A secondary slide is also provided between the secondary channel and the primary ramp. The secondary slide has the same structure as the primary slide. The slide plate of the primary slide is inclined between the primary channel and the secondary channel, and the slide plate of the secondary slide is inclined between the secondary channel and the primary ramp.

6. The multi-stage accelerated precision separation device for poultry chicks as described in claim 5, characterized in that, The crossbeam of the inclined gantry frame is also equipped with a pneumatic blowing mechanism, which consists of multiple blowing nozzles. The angle of the blowing nozzles is adjustable, which is used to blow seedlings of different sizes into channels of different widths.

7. The multi-stage accelerated precision separation device for poultry chicks as described in claim 5, characterized in that, The width of the slide plate of the first-level slide is greater than the width of the slide plate of the second-level slide, so as to reduce the friction between the seedling and the side wall of the slide plate.

8. The multi-stage accelerated precision separation device for poultry chicks as described in claim 7, characterized in that, The spacing between adjacent partitions on the primary channel, secondary channel, primary ramp, tertiary channel, secondary ramp, and separated channel gradually increases to prevent seedlings from hitting the ends of the partitions at the junctions of each channel and ramp.

9. The working method of the multi-stage accelerated precise separation device for poultry chicks as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. After the seedlings are transported to the primary channel by the conveying device, they are first separated by rubber rods to separate the gathered seedlings. Then the seedlings are transported to the partitions and separated into multiple channels formed by the partitions. After that, they enter the primary slide to separate and stack the seedlings for the first time. S2. Then the seedlings enter the secondary channel. Since the conveying speed of the secondary channel is greater than that of the primary channel, the spacing between the seedlings is initially widened for initial separation. Then they enter the secondary slide to further separate the seedlings that are side by side or stacked. Then they enter the primary ramp. The conveying speed of the primary ramp is greater than that of the secondary channel, which widens the spacing between the seedlings again. S3. After that, the seedlings enter the third channel through the first-level slope. The conveying speed of the third channel is greater than that of the first-level slope. The spacing between the seedlings is widened for the third time. Then, they enter the second-level slope. The conveying speed of the second-level slope is greater than that of the third-level channel. The spacing between the seedlings is widened for the fourth time. Then, they enter the blowing mechanism. The blowing nozzles send the seedlings into the correct separated channels.

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