CN113200303A - Vibrating single-row peanut seed sorting device and sorting method - Google Patents

Abstract

The invention relates to agricultural machinery, in particular to a vibrating single-row peanut seed sorting device and a vibrating single-row peanut seed sorting method. The peanut single-grain screening machine comprises an electromagnetic vibration mechanism, a seed cavity, a seed returning opening, a spiral conveying track, a single-grain screening mechanism, a plurality of single-grain conveying tracks and a rack, wherein the electromagnetic vibration mechanism is arranged on the rack, a seed cavity shell is fixed above the electromagnetic vibration mechanism, the seed cavity is positioned in the seed cavity shell, an annular gap exists between the outer side wall of the seed cavity and the seed cavity shell, peanut seeds to be sequenced are contained in the seed cavity, the seed returning opening is arranged at the bottom of the seed cavity, the single-grain conveying track is arranged on the upper portion of the seed cavity shell, and the single-grain conveying track is positioned between the seed cavity shell and the seed cavity. The sorting and single-grain delivery device realizes the sorting and single-grain delivery of disordered peanut seeds, and has accurate and reliable sorting and single-grain delivery and high seed supply efficiency.

Description

Vibrating single-row peanut seed sorting device and sorting method

Technical Field

The invention relates to agricultural machinery, in particular to a vibrating single-row peanut seed sorting device and a vibrating single-row peanut seed sorting method.

Background

The screening of peanut seeds can overcome the defects of low emergence rate, improvement of disease resistance and stress resistance of plants, improvement of peanut yield and the like. With the advancement of agricultural modernization, farm-type operation is a necessary development trend, and peanut seed screening by manpower alone cannot meet the requirement of large-scale planting of the farm. At present, the related research of domestic seed screening equipment is still in a starting stage, good peanut seed grading equipment based on technologies such as photoelectricity and machine vision is a challenge of combining a digital technology and agricultural machinery, some key technologies are not mature enough, and a developed prototype is also mainly in a test stage. The peanut seed singulation is a key technical link for realizing screening of excellent peanut seeds based on an embedded neural network. The conventional single peanut seed supply device has the defects of complex structure, low seed supply efficiency and insufficient reliability of single seed, and is difficult to realize automation particularly in the low-level stage of manual or semi-mechanization in the field of current peanut seed screening equipment. Therefore, the peanut seed single-row sorting method and device are developed according to the structural characteristics of peanut seeds, and the method and device have an important supporting function for developing economic and applicable peanut excellent seed screening equipment based on the embedded neural network.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a vibrating peanut seed single-row sequencing device and a vibrating peanut seed single-row sequencing method, which realize the sequencing and single-grain conveying of disordered peanut seeds, are accurate and reliable in sequencing and single-grain conveying, and are high in conveying and seed supplying efficiency.

The technical scheme of the invention is as follows: a vibrating peanut seed single-row sequencing device comprises an electromagnetic vibration mechanism, a seed cavity, a seed returning port, a spiral conveying track, a single-seed screening mechanism, a plurality of single-seed conveying tracks and a rack, wherein the electromagnetic vibration mechanism is arranged on the rack, a seed cavity shell is fixed above the electromagnetic vibration mechanism, the seed cavity is positioned in the seed cavity shell, an annular gap is formed between the outer side wall of the seed cavity and the seed cavity shell, peanut seeds to be sequenced are contained in the seed cavity, the seed returning port is arranged at the bottom of the seed cavity, the single-seed conveying track is arranged at the upper part of the seed cavity shell, and the single-seed conveying track is positioned between the seed cavity shell and the seed cavity;

a spiral conveying track is fixed on the inner side wall of the seed cavity, a plurality of single-grain conveying tracks are arranged above the seed cavity and fixedly supported by the frame, the input end of each single-grain conveying track is connected with the output end of the spiral conveying track, an included angle is formed between each spiral conveying track and the inner side wall of the seed cavity, the output end of each single-grain conveying track is connected with a single-row peanut seed output channel, and a falling track is fixed at the output end of each single-row conveying track;

the single-grain screening mechanism comprises a first single-grain screening mechanism and a second single-grain screening mechanism, the first single-grain screening mechanism is located at the output end of the spiral conveying track, and the second single-grain screening mechanism is located at the output end of the single-grain conveying track.

The first single grain screening mechanism comprises a height limiting stop lever I and a seed dropping opening I, the seed dropping opening I is a notch which is arranged along the spiral conveying track surface and is positioned at the output end of the spiral conveying track, the height limiting stop lever I is arranged on the side wall of the seed cavity at the seed dropping opening I, the height difference between the height limiting stop lever I and the spiral conveying track surface is larger than the thickness of peanuts and smaller than twice the thickness of the peanut seeds, and the height limiting stop lever I is arc-shaped;

and the second single-particle screening mechanism comprises a height-limiting stop lever II.

The electromagnetic vibration device comprises an armature, an iron core, a vibration absorber, a tray, a plate spring, an electromagnet supporting seat and a chassis, wherein the armature is arranged right above the iron core, the armature is fixed at the central position of the bottom surface of the tray, the tray is fixedly connected with a seed cavity and a seed cavity shell, a coil is wound on the outer side surface of the iron core, the iron core is fixed at the central position of the top surface of the electromagnet supporting seat, the electromagnet supporting seat is fixed above the chassis, a plurality of vibration absorbers are fixed on the bottom surface of the chassis, the vibration absorbers are made of rubber materials, the plate spring is obliquely arranged on the chassis, and an included angle between the plate spring and the chassis is 95-150 degrees.

The height limiting stop lever II can be fixed on the rail side elevation of the single-grain conveying rail.

The included angle between the spiral conveying track and the inner side wall of the seed cavity is preferably 65-75 degrees.

The seed cavity shell and the seed cavity are connected with the electromagnetic vibration mechanism through the elastic sheet.

The output end of the single-grain conveying track is connected with the peanut seed single-row output channel, a falling track is fixed at the output end of the single-row conveying track and is positioned above the running track;

the peanut seed single-row output channel is a channel formed by two steel plates with an included angle of 80-150 degrees, the output end of the peanut seed single-row output channel is vertically downward, the falling track is a steel plate with the surface covered with flannelette, and the included angle between the falling track and the extension line of the peanut seed single-row output channel is 30-60 degrees.

And an operation track is arranged below the falling track, one end of the operation track is positioned right below the falling track, the operation track is a smooth track with a convex middle part, and a high-speed camera is arranged above the convex middle part. Through setting up middle arch, make peanut seed can roll near orbit's peak and carry, be favorable to high-speed camera to gather peanut seed's full appearance.

The invention also comprises a method for single-row sequencing of peanut seeds by using the vibrating single-row peanut seed sequencing device, which comprises the following steps:

firstly, placing peanut seeds in a seed cavity;

secondly, starting the electromagnetic vibration mechanism to drive the seed cavity to vibrate, so that the peanut seeds in the seed cavity spirally rise along the spiral conveying track, and the peanut seeds on the spiral conveying track are in a disordered state;

thirdly, the peanut seeds sequentially pass through the first single-seed screening mechanism and the second single-seed screening mechanism, and the peanut seeds which do not accord with the sorting are removed into a peanut seed placing cavity or are adjusted to be in order;

and repeating the actions from the first step to the third step until the peanut seeds can be in single row and lie down to pass through the single-seed conveying track.

The invention has the beneficial effects that:

(1) the sorting and single-grain delivery of disordered peanut seeds can be realized, the sorting and the single-grain delivery are accurate and reliable, and the delivery and seed supply efficiency is high;

(2) the method can meet the requirement of single-grain seed supply of the current peanut seed screening equipment, and provides important support for developing economic and applicable peanut excellent seed screening equipment based on an embedded neural network;

(3) based on the sorting and singulating method provided by the invention, a sorting and singulating conveying device suitable for seeds with different structural characteristics can be developed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a seed chamber and a seed chamber housing;

FIG. 3 is a schematic structural view of an electromagnetic vibration mechanism;

FIG. 4 is a schematic structural diagram of a first single particle screening mechanism;

FIG. 5 is a schematic structural diagram of a second single particle screening mechanism;

fig. 6 is a flow chart of a sorting method.

Wherein: 1 an electromagnetic vibration mechanism; 101 an armature; 102 a core; 103 vibration damper; 107 chassis; 106 electromagnet supporting seats; 105 a leaf spring; 104 a tray; 2 kinds of cavities; 3, returning the seeds to the seed outlet; 4, a spiral conveying track; 5 a first single grain screening mechanism; 501 dropping out a seed mouth I; 502 limit high gear lever I; 6, single grain conveying track; 7 a second single particle screening mechanism; 701 height limiting stop lever II; 8 kinds of cavity shells; 9 peanut seed single-row output channel; 10 a frame; 11 a drop rail; 12 running tracks; 13 high-speed camera; 14 peanut seeds.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 5, the vibrating single-row peanut seed sorting device of the invention comprises an electromagnetic vibrating mechanism 1, a seed cavity 2, a seed returning port 3, a spiral conveying track 4, a single-grain screening mechanism, a plurality of single-grain conveying tracks and a frame 10. Electromagnetic vibration mechanism 1 sets up in frame 10, and kind of chamber shell 8 is fixed in electromagnetic vibration mechanism 1's top, and kind of chamber shell 8 encloses into a tube-shape, and kind of chamber 2 is located kind of chamber shell 8, and the splendid attire remains the peanut seed of sequencing in kind of chamber 2, has certain annular gap between the lateral wall of kind of chamber shell 8 and kind of chamber 2, and the bottom of kind of chamber 2 is equipped with back kind of a mouthful 3, and above-mentioned annular gap communicates through back kind of a mouthful 3 between 2 with kind of chamber. The seed cavity shell 8 is connected with the electromagnetic vibration mechanism 1 through the elastic sheet, the electromagnetic vibration mechanism 1 generates driving force in the vibration process, so that the peanut seeds in the seed cavity 2 generate spiral vibration, and the vibration frequency and the vibration intensity can be adjusted through the vibration adjuster. The single-particle conveying track is positioned at the upper part of the seed cavity shell 8 and is positioned between the seed cavity shell 8 and the seed cavity 2.

The spiral conveying track 4 is fixed on the inner side wall of the seed cavity 2, and the peanut seeds in the seed cavity 2 are conveyed in a spiral lifting mode through the spiral conveying track 4. A plurality of single-grain conveying rails 6 are arranged above the seed cavity 2, and the single-grain conveying rails 6 are fixedly supported by a rack 10. The input end of the single-grain conveying track 6 is connected with the output end of the spiral conveying track 4. The spiral conveying track 4 and the inner side wall of the seed cavity 2 form a certain included angle, the included angle range is 65-75 degrees in the embodiment, and peanut seeds in the seed cavity 2 are conveyed in a spiral lifting mode. The output end of the single-grain conveying track 6 is connected with a single-row peanut seed output channel 9, a falling track 11 is fixed at the output end of the single-row conveying track 9, and the falling track 11 is positioned above the running track 12. The single-grain screening mechanism comprises a first single-grain screening mechanism 5 and a second single-grain screening mechanism 7, wherein the first single-grain screening mechanism 5 is located at the tail end of the spiral conveying track 4, the second single-grain screening mechanism 7 is located at the tail end of the single-grain conveying track 6, peanut seeds are screened for the first time through the first single-grain screening mechanism 5, the peanut seeds are screened for the second time through the second single-grain screening mechanism 7, the peanut seeds which do not accord with sequencing and are singulated are removed into the peanut seed placing cavity 2, and the peanut seeds on the seed cavity track are adjusted to be singulated and are used for improving the sequencing and singulation stability of the peanut seeds. The track width of the single-grain conveying track 6 is equal to or slightly less than the maximum width of the peanut seeds, namely the distance between the two sides of the tail end of the peanut seeds. The head of the output peanut seeds can be in a forward state and the tail of the output peanut seeds can be in a backward state through the single-seed conveying track 6. The sequenced and singulated peanut seeds are sequentially discharged from the peanut seed single-row output channel 9 to the falling track 11, smoothly slide to the running track 12, and move and roll along with the running track 12.

As shown in fig. 3, the electromagnetic vibration mechanism 1 includes an armature 101, an iron core 102, a damper 103, a tray 104, a plate spring 105, an electromagnet support base 106, and a chassis 107, the armature 101 is disposed directly above the iron core 102, the armature 101 is fixed at a central position on a bottom surface of the tray 104, and the tray 104 is fixedly connected to the seed chamber and the seed chamber housing 8. The outer side surface of the iron core 102 is wound with a coil, the iron core 102 is fixed at the center position of the top surface of the electromagnet supporting seat 106, the electromagnet supporting seat 106 is fixed above the chassis 107, the bottom surface of the chassis 107 is fixed with a plurality of shock absorbers 103, and the shock absorbers 103 are made of rubber materials. The plate spring 105 is obliquely arranged on the chassis 107, and the included angle between the plate spring 105 and the chassis 107 is 95-150 degrees. The electromagnetic vibration mechanism 1 is positioned at the bottom of the center of the whole device, after the power supply is switched on, the generated vibration can drive the sequencing and conveying device to generate spiral vibration, the vibration frequency and the vibration intensity can be adjusted through a vibration adjuster, the vibration adjuster supplies power to a coil, and the vibration frequency adjusting range is 0-100 HZ.

As shown in fig. 4, the first single-grain screening mechanism 5 includes a height-limiting bar I502 and a seed dropping opening I501, the seed dropping opening I501 is a gap along the spiral conveying track surface and located at the output end of the spiral conveying track 4, the track surface width of the seed dropping opening I501 is 10-104mm, and the width is slightly larger than the width of the center of gravity of the peanut seeds. The sowing port I501 has the function that more than two peanut seeds which are arranged in parallel and the peanut seeds which move transversely fall back into the sowing cavity 2 from the sowing port I501 because the center of gravity is outside the track, so as to complete the primary screening of the peanut seeds. The height limiting stop lever I502 is arranged on the side wall of the seed cavity at the seed falling opening I501, and the height difference between the height limiting stop lever I502 and the rail surface is larger than the thickness of the peanut and smaller than the double thickness of the peanut seed. The height-limiting stop lever I502 is arc-shaped and extends along the bending direction of the spiral conveying track. The height limiting stop lever I502 is used for pushing out the superposed peanut seeds on the upper layer from the track to fall back into the seed cavity 2, or pushing down the vertical peanut seeds, and then laying down the peanut seeds on the spiral conveying track 4 or directly pushing down the peanut seeds into the seed cavity 2 according to the required state.

As shown in fig. 5, the second single-grain screening mechanism 7 includes a height-limiting stop lever ii 701, and the height-limiting stop lever ii 701 may be fixed on a rail side elevation of the single-grain conveying rail. The height limiting stop lever II 701 has the same function as the height limiting stop lever I502, secondary adjustment and screening of superposed peanut seeds are completed, the peanut seeds pushed down by the height limiting stop lever II 701 directly fall into an annular gap between the seed cavity shell 8 and the seed cavity 2, and enter the seed cavity 2 again through the seed returning port 3. Regarding the first single-grain peanut screening mechanism 5 and the second single-grain peanut screening mechanism 7, a single screening mechanism may be provided, or a plurality of screening mechanisms may be provided, and when a plurality of screening mechanisms are provided, the screening and adjusting effects of the peanut seeds may be improved.

In this embodiment, the single-row peanut seed output channel 9 is a channel with an included angle of 80-150 degrees formed by two steel plates with a width of 5-105mm, the input end of the single-row peanut seed output channel 9 is connected with the output end of the single-seed conveying track, the output end of the single-row peanut seed output channel is vertically downward, and the single-seed peanut seeds are sequentially discharged from the single-row peanut seed output channel 9. In this embodiment, the falling rail 11 is a steel plate 2cm wide, and a layer of flannelette covers the surface of the steel plate, so that the friction force of the rail can be increased by the flannelette, and the peanut seeds can stably fall along the falling rail 11. A certain included angle is formed between extension lines of the falling track 11 and the peanut seed single-row output track 9, the included angle range is 30-60 degrees, one end of the running track 12 is arranged right below the falling track 11, and in the embodiment, the vertical distance between the running track 12 and the falling track 11 is 5 mm. The running track 12 is a smooth track with a convex middle part, a position which is 30cm away from the end part of the running track below the falling track is a highest point, a high-speed camera 13 is arranged at the position of the highest point of the running track, and the highest point is 5-15cm higher than the two ends of the running track in the vertical direction. Through setting up middle arch, make peanut seed can roll near the peak of orbit 12 and carry, be favorable to high-speed camera to gather the general appearance of peanut seed.

The method for single-row sorting of peanut seeds by using the vibrating single-row peanut seed sorting device is shown in fig. 6 and comprises the following steps. In the figure, Y represents a single row of single peanut seeds and N represents disordered peanut seeds.

In a first step, peanut seeds are placed in the seed chamber 2.

And secondly, starting the electromagnetic vibration mechanism 1 to drive the seed cavity 2 to vibrate, so that the peanut seeds in the seed cavity 2 spirally rise along the spiral conveying track 4. The peanut seeds delivered from the seed chamber 2 enter the spiral conveying track 4, and the peanut seeds on the spiral conveying track 4 are in a disordered state, wherein undesirable peanut seeds can be arranged side by side and overlapped.

Thirdly, the peanut seeds sequentially pass through the first single-seed screening mechanism 5 and the second single-seed screening mechanism 7, and the peanut seeds which do not accord with the sorting, namely N in the graph, are removed into the seed cavity 2 or are adjusted into ordered peanut seeds, namely Y. The disordered peanut seeds N rejected by the first single-grain screening mechanism directly fall into the seed cavity, and the disordered peanut seeds N rejected by the second single-grain screening mechanism enter the seed cavity again through the seed returning opening. Directly outputting single-row single peanut seeds Y meeting the requirements.

Wherein, the height-limiting stop lever I502 in the first single-grain screening mechanism 5 pushes out the superposed upper layer peanut seeds from the track and falls back into the seed cavity 2, or pushes down the vertical peanut seeds and then lies down on the track surface or directly pushes down the vertical peanut seeds into the seed cavity 2. In addition, more than two peanut seeds which are arranged side by side and peanut seeds which move transversely fall back into the seed cavity 2 from the seed dropping opening I501 because the center of gravity is outside the orbit. The first adjustment and screening of peanut seeds are realized through the first single-seed screening mechanism. The second single-grain screening mechanism 7 allows the lying peanut seeds to pass through, and simultaneously enables the vertical and superposed peanut seeds to fall into the seed cavity 2, so as to perform secondary adjustment and screening on the peanut seeds.

The peanut seeds falling into the seed cavity 2 again repeat the actions from the first step to the third step until the peanut seeds can pass through the single-seed conveying track 6 in a single-row and flat-lying manner.

The vibrating single-row peanut seed sorting device and the sorting method provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A vibrating peanut seed single-row sequencing device is characterized by comprising an electromagnetic vibration mechanism (1), a seed cavity (2), a seed returning port (3), a spiral conveying track (4), a single-grain screening mechanism, a plurality of single-grain conveying tracks and a rack (10), wherein the electromagnetic vibration mechanism (1) is arranged on the rack (10), a seed cavity shell (8) is fixed above the electromagnetic vibration mechanism (1), the seed cavity (2) is positioned in the seed cavity shell (8), an annular gap is formed between the outer side wall of the seed cavity (2) and the seed cavity shell (8), peanut seeds to be sequenced are contained in the seed cavity (2), the seed returning port (3) is arranged at the bottom of the seed cavity (2), the single-grain conveying track is arranged on the upper part of the seed cavity shell (8), and the single-grain conveying track is positioned between the seed cavity shell (8) and the seed cavity (2);

a spiral conveying track (4) is fixed on the inner side wall of the seed cavity (2), a plurality of single-grain conveying tracks (6) are arranged above the seed cavity (2), the single-grain conveying tracks (6) are fixedly supported by a rack (10), the input end of each single-grain conveying track (6) is connected with the output end of the spiral conveying track (4), and the spiral conveying tracks (4) and the inner side wall of the seed cavity (2) are arranged in an included angle;

the single-grain screening mechanism comprises a first single-grain screening mechanism (5) and a second single-grain screening mechanism (7), the first single-grain screening mechanism (5) is positioned at the output end of the spiral conveying track (4), and the second single-grain screening mechanism (7) is positioned at the output end of the single-grain conveying track (6);

the first single-grain screening mechanism (5) comprises a height-limiting stop lever I (502) and a seed dropping opening I (501), the seed dropping opening I (501) is a notch which is arranged along the spiral conveying track surface and is positioned at the output end of the spiral conveying track, the height-limiting stop lever I (502) is arranged on the side wall of a seed cavity at the seed dropping opening I (501), the height difference between the height-limiting stop lever I (502) and the spiral conveying track surface is larger than the thickness of peanuts and smaller than twice the thickness of the peanut seeds, and the height-limiting stop lever I (502) is arc-shaped;

the second single-particle screening mechanism (7) comprises a height limiting stop lever II (701).

2. A vibrating peanut seed single file sequencing device according to claim 1, wherein the electromagnetic vibrating device (1) comprises an armature (101), an iron core (102), a vibration damper (103), a tray (104), a plate spring (105), an electromagnet support seat (106) and a chassis (107), the armature (101) is arranged right above the iron core (102), the armature (101) is fixed at the central position of the bottom surface of the tray (104), the tray (104) is fixedly connected with the seed cavity (2) and the seed cavity shell (8), the outer side surface of the iron core (102) is wound with a coil, the iron core (102) is fixed at the central position of the top surface of the electromagnet support seat (106), the electromagnet support seat (106) is fixed above the chassis (107), the bottom surface of the chassis (107) is fixed with a plurality of vibration dampers (103), the plate spring (105) is obliquely arranged on the chassis (107), the included angle between the plate spring (105) and the chassis (107) is 95-150 degrees.

3. The vibrating single file peanut seed sorting device of claim 1, wherein said height-limiting bar ii (701) is fixed to a rail-side elevation of the single-seed conveying rail.

4. A vibrating single file peanut seed sorting device as in claim 1 wherein the helical conveying track (4) is angled 65 ° to 75 ° from the inside wall of the seed chamber.

5. A vibrating single file peanut seed sorting device according to claim 1, wherein said seed chamber housing (8) and seed chamber (2) are connected to the electromagnetic vibrating mechanism (1) by a resilient tab.

6. A vibrating single peanut seed singling sequencing device according to claim 1, characterized in that the output end of the single peanut conveying rail (6) is connected with a single peanut seed singling output channel (9), a falling rail (11) is fixed to the output end of the single peanut conveying rail (9), and the falling rail (11) is positioned above the running rail (12);

the peanut seed single-row output channel (9) is a channel formed by two steel plates with an included angle of 80-150 degrees, the output end of the peanut seed single-row output channel (9) is vertically downward, the falling track (11) is a steel plate with the surface covered with flannelette, and the included angle between the falling track (11) and the extension line of the peanut seed single-row output channel (9) is 30-60 degrees.

7. A vibrating single file peanut seed sorting device according to claim 1, wherein a running track (12) is provided below the falling track (11), one end of the running track (12) is provided right below the falling track (11), the running track (12) is a smooth track with a convex middle part, and a high-speed camera (13) is provided above the convex middle part.

8. A method of sorting a vibrating single file peanut seed sorting device as in any one of claims 1 to 7, comprising the steps of:

firstly, placing peanut seeds in a seed cavity;

secondly, starting the electromagnetic vibration mechanism to drive the seed cavity to vibrate, so that the peanut seeds in the seed cavity spirally rise along the spiral conveying track, and the peanut seeds on the spiral conveying track are in a disordered state;

thirdly, the peanut seeds sequentially pass through the first single-seed screening mechanism and the second single-seed screening mechanism, and the peanut seeds which do not accord with the sorting are removed into a peanut seed placing cavity or are adjusted to be in order;

and repeating the actions from the first step to the third step until the peanut seeds can be in single row and lie down to pass through the single-seed conveying track.

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