CN114391335A

CN114391335A - Seed coating machine

Info

Publication number: CN114391335A
Application number: CN202111658978.3A
Authority: CN
Inventors: 柳继凤; 杨庆申; 王庆堂; 张磊; 姚新英; 程庆斌; 罗中良; 赵志瑞; 牛学鑫
Original assignee: Hebei Wotu Seed Industry Co ltd
Current assignee: Hebei Wotu Seed Industry Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-26
Anticipated expiration: 2041-12-30
Also published as: CN114391335B

Abstract

The invention relates to the technical field of seed coating, and provides a seed coating machine, wherein the proportion between seeds and solution is not required to be adjusted intentionally in the coating process, the seed coating is uniform, the solution utilization rate is high, simultaneously, the coated seeds are discharged after being dried, on one hand, the subsequent processes are reduced, on the other hand, the adhesion and caking of the seeds are well reduced, the seed coating machine comprises a main body mechanism and a spraying mechanism, a stirring mechanism is arranged in the main body mechanism, the seed coating machine also comprises a coating cylinder, the main body mechanism is connected with the coating cylinder, a plurality of pushing fans are arranged at the left end of the main body mechanism, the plurality of pushing fans are all positioned in the coating cylinder, the spraying mechanism is arranged at the rear end of the coating cylinder, a leg frame is arranged on the main body mechanism, the leg frame is connected with a reverse guiding discharge cylinder, the leg frame is connected with a driving roller, the coating cylinder is connected with an auxiliary roller and a tail roller, and a mesh belt is connected between the driving roller, the auxiliary roller and the tail roller, the leg frame is connected with two rectangular plates, and the surfaces, close to each other, of the two rectangular plates are connected with turning wheels.

Description

Seed coating machine

Technical Field

The invention relates to the technical field of seed coating, in particular to a seed coating machine.

Background

As is known, seed coating is a high and new technology for promoting agricultural production increase and harvest, which is researched and developed in the middle of the 80 th century, seeds coated with a seed coating agent can rapidly absorb water and swell after being sowed, and various active ingredients contained in the seed coating agent are slowly released and gradually absorbed by the seedlings of the seeds along with the gradual development of embryos in the seeds and the continuous growth of the seedlings, so that the aims of preventing and controlling seedling diseases and insect pests, promoting growth and development and improving crop yield are fulfilled.

Through search, chinese patent publication No. CN214800652U, published on 23/11/2021, discloses a seed coating machine, which is described generally as comprising a main body mechanism, a stirring mechanism, a turnover mechanism and a spraying mechanism, wherein the main body mechanism comprises a box body, the box body is a hollow rectangle, a plurality of partition boards are horizontally arranged in the box body, the size of each partition board is the same as the size of the interior of the box body, a through hole is formed in the center of the interior of the box body, an insertion groove is formed in the center of the upper end surface of each partition board, the insertion groove is arranged along the length direction of each partition board, a pulling plate is inserted in the insertion groove and is matched with the insertion groove, a mounting hole is formed in the center of each pulling plate, a filter screen is fixedly connected to the inner wall of the mounting hole, the size of the filter screen is the same as the size of the through hole of the partition boards, when the seed coating machine is used, the seed to be coated is fed into the main body mechanism from a feed hopper, the seed filtered by the main body mechanism enters the turnover mechanism, the spraying mechanism realizes the spraying of the solution of the seed coating layer, the turnover mechanism stirs and assists the movement of the seeds in the coating process, and assists the realization of the uniform coating of the seeds and the unloading after the coating, although the technical scheme provided by the seed coating machine can realize the auxiliary coating of the seeds, the coating agent of the coating layer sprayed in the coating process is usually liquid, therefore, the seed coating machine needs to strictly control the ratio of the throughput of the seeds to the liquid spraying amount of the coating layer in the coating process of the seeds, otherwise, the passing of the seeds is too fast and causes incomplete coating, the throughput of the seeds is too slow and easily causes the sprayed liquid to gather at the bottom of the seeds under the action of gravity, thereby causing the waste of the liquid, meanwhile, the seeds after the coating treatment are in a wet state, and the direct discharge easily causes the mutual adhesion among the seeds, after drying, the seeds are easy to agglomerate, and the normal use of the coated seeds is affected.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the seed coating machine, the ratio of seeds to a solution is not required to be adjusted intentionally in the coating process, the seed coating is uniform, the solution utilization rate is high, and the coated seeds are discharged after being dried, so that the subsequent processes are reduced, and the adhesion and agglomeration of the seeds are well reduced.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a seed coating machine comprises a main body mechanism and a spraying mechanism, wherein an agitating mechanism is installed in the main body mechanism, the seed coating machine further comprises a coating barrel, the main body mechanism is connected with the coating barrel, a plurality of pushing fans are installed at the left end of the main body mechanism and are all located in the coating barrel, the spraying mechanism is installed at the rear end of the coating barrel, a leg frame is installed at the bottom end of the main body mechanism, a reverse guide discharging barrel is fixedly connected in the leg frame, the top end of the reverse guide discharging barrel is communicated with the main body mechanism, sieve holes are formed in the reverse guide discharging barrel, sieve plates are detachably connected in the sieve holes, mounting lug plates are fixedly connected at the front end and the rear end of the reverse guide discharging barrel, a guide inclined plate is rotatably connected between the two mounting lug plates, a driving roller is rotatably connected in the leg frame, and an auxiliary roller and a tail roller are rotatably connected in the coating barrel, the device comprises a driving roller, an auxiliary roller and a tail roller, wherein a mesh belt is connected between the driving roller, the auxiliary roller and the tail roller in a transmission manner, two rectangular plates are fixedly connected in a leg frame, one side, close to each other, of each rectangular plate is rotatably connected with a turning wheel for guiding the mesh belt in a direction, the rear end of the leg frame and the rear end of a coating cylinder are respectively provided with a main driving motor and an auxiliary driving motor for driving the driving roller and driving the auxiliary roller, a mounting plate is fixedly connected in the coating cylinder and is positioned in a surrounding area formed by matching the mesh belt and the coating cylinder, the mounting plate is provided with a plurality of high-air-volume fans, an edge frame and a buckle frame are fixedly connected on the inner front wall and the inner rear wall of the coating cylinder, the two edge frames are positioned above the mesh belt, the bottom ends of the two edge frames are respectively contacted with the top surface of the mesh belt, the two buckle frames are respectively positioned on the upper parts of the two edge frames, and are respectively connected with an atomizing pipe in the two buckle frames in a buckling manner, the two spraying pipes are provided with a plurality of spraying openings and are communicated through a collecting pipe, the collecting pipe penetrates through the coating cylinder and extends out of the rear portion of the coating cylinder to be connected with a spraying mechanism, a collecting system is installed at the top end of the coating cylinder, a dryer is installed at the front end of the coating cylinder, an auxiliary drying system and a wind path system used for guiding drying wind generated by the dryer are installed in the coating cylinder, and a discharging opening is formed in the left end of the coating cylinder.

On the basis of the scheme, the collecting system comprises a collecting cap, a bottom end of the collecting cap is fixedly connected with a recovery ring half pipe, the bottom end of the recovery ring half pipe is connected with the coating cylinder, an inclined bent pipe is connected between the recovery ring half pipe and the spraying mechanism, and a rectangular opening used for communicating the coating cylinder with the inside of the collecting cap is formed in the top end of the coating cylinder.

Preferably on the basis of the scheme, the air path system comprises a branch pipe and two drying air pipes, one end of the branch pipe is communicated with the dryer, the other end of the branch pipe penetrates into the coating barrel and is communicated with the drying air pipes in the coating barrel, the two drying air pipes are respectively installed on the inner front wall and the inner rear wall of the coating barrel through buckle belts, and a plurality of air outlets are formed in the two drying air pipes.

On the basis of the scheme, the auxiliary drying system comprises a tailstock and a guide net, the tailstock is fixedly connected in the coating barrel, a plurality of large-air-volume fans are mounted on the tailstock and located at the bottom of the drying air pipe, the guide net is fixedly connected in the coating barrel, and the guide net is located between the large-air-volume motor and the drying air pipe.

On the basis of the scheme, a chute guide strip is fixedly connected in the coating barrel, a door hole is formed in the rear end of the coating barrel, and the rear end of the chute guide strip penetrates through the door hole and extends out of the rear side of the coating barrel.

On the basis of the scheme, a strip brush is fixedly connected in the coating barrel, bristles which are in contact with the mesh belt are arranged on the strip brush, and the right end of the strip brush is flush with the right end of the chute guide strip.

As a further aspect of the above scheme, a baffle is fixedly connected in the coating cylinder, the left end of the baffle contacts with the right end of the buckle belt, and a through opening matched with the drying air pipe is formed in the baffle.

As a further aspect of the above solution, a limiting column for guiding the inclined plate to limit is fixedly connected in the leg frame.

As a further improvement of the above scheme, a plurality of access holes are formed in the coating barrel, sheet metal doors are mounted in the access holes, and a plurality of hand fastening grooves are formed in the sheet metal doors.

As a further scheme of the scheme, the collecting cap is provided with a vent, and the mesh belt is divided into a translational material receiving section, an oblique material improving section and a coating operation section by matching of the driving roller, the auxiliary roller, the tail roller and the turning wheel.

(III) advantageous effects

Compared with the prior art, the invention provides a seed coating machine, which has the following beneficial effects:

1. according to the invention, the high-air-volume fan is arranged, so that seeds needing to be coated on the mesh belt can be blown up conveniently, the coated seeds can be suspended in the coating cylinder, meanwhile, the liquid sprayed by the spray pipe can be further atomized and contacted with the suspended seeds conveniently, the excessive liquid after the liquid is contacted with the seeds is blown away, the ratio between the seeds and the solution is not required to be adjusted intentionally in the coating process, the seeds are coated uniformly, the suspended seeds can be pushed conveniently by pushing the fan, and the seeds can move from right to left in the coating cylinder in a suspension state.

2. According to the invention, through the design of the collection system, the solution blown away by the high-air-volume fan is convenient to contact and liquefy again, and the solution after contact and liquefaction is collected for reuse, so that the solution utilization rate is high.

3. According to the invention, the drying machine and the air path system are matched, so that the coated seeds can be dried conveniently, and the coated seeds are discharged after being dried, on one hand, the subsequent processes are reduced, on the other hand, the adhesion and agglomeration of the seeds are better reduced, and the suspension of the coated seeds in the drying process is ensured conveniently through the design of the auxiliary drying system, so that the adhesion between the seeds in the drying process is avoided.

4. According to the invention, the reverse guide discharging cylinder is installed, so that seeds treated in the main body mechanism can be conveniently guided to the mesh belt, and meanwhile, the seeds can be conveniently screened and filtered in the guiding process, so that impurities in the seeds can be removed.

Drawings

FIG. 1 is a partially cut-away perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the auxiliary roller, the tail roller, the mesh belt and the like;

FIG. 5 is a schematic perspective view of another embodiment of the present invention;

fig. 6 is a schematic rear side view of the whole body of the present invention.

In the figure: 1. a main body mechanism; 2. a spraying mechanism; 3. a coating cylinder; 4. a leg frame; 5. a reverse leading discharge drum; 6. a sieve plate; 7. mounting an ear plate; 8. a guide sloping plate; 9. a drive roll; 10. an auxiliary roller; 11. a tail roll; 12. a mesh belt; 13. a rectangular plate; 14. a turning wheel; 15. mounting a plate; 16. a side frame; 17. a buckle frame; 18. a spray tube; 19. a spray nozzle; 20. a header; 21. a discharge opening; 22. a collection cap; 23. recovering the ring half pipe; 24. bending the pipe obliquely; 25. a branch pipe; 26. drying the air pipe; 27. a buckle belt; 28. an air outlet; 29. a tailstock; 30. a guide net; 31. brushing strips; 32. a baffle plate; 33. a limiting column; 34. a sheet metal door; 35. a chute guide strip.

Detailed Description

Examples

Referring to fig. 1-6, a seed coating machine comprises a main body mechanism 1 and a spraying mechanism 2, wherein a stirring mechanism is installed in the main body mechanism 1, the coating machine further comprises a coating drum 3, the main body mechanism 1 is connected with the coating drum 3, a plurality of pushing fans are installed at the left end of the main body mechanism 1 and are all located in the coating drum 3, suspended seeds are pushed and moved conveniently through the installation of the pushing fans, the seeds move from right to left in the coating drum 3 in a suspended state, the spraying mechanism 2 is installed at the rear end of the coating drum 3, a leg frame 4 is installed at the bottom end of the main body mechanism 1, a reverse guide discharging drum 5 is fixedly connected in the leg frame 4, the top end of the reverse guide discharging drum 5 is communicated with the main body mechanism 1, the seeds treated in the main body mechanism 1 are guided to a mesh belt 12 through the installation of the reverse guide discharging drum 5, a mesh screen is arranged in the reverse guide discharging drum 5, the sieve pores are detachably connected with sieve plates 6, which is convenient for the reversed guiding discharge cylinder 5 to sieve and filter the seeds in the guiding process, to remove impurities in the seeds, the front end and the rear end of the reverse guide discharging cylinder 5 are fixedly connected with mounting lug plates 7, a guide inclined plate 8 is rotatably connected between the two mounting lug plates 7, can guide the discharge with the impurity of screening in the seed, fixedly connected with is used for guiding the spacing post 33 of swash plate 8 in the leg 4, be convenient for inject the extreme position of guide swash plate 8, leg 4 internal rotation is connected with drive roll 9, the internal rotation of capsule section of thick bamboo 3 is connected with auxiliary roller 10 and tail roller 11, drive roll 9, the transmission is connected with guipure 12 between auxiliary roller 10 and the tail roller 11, drive roll 9, auxiliary roller 10, tail roller 11 and diversion wheel 14 cooperation divide into translation material receiving section with guipure 12, improve section and capsule operation section to one side, the realization is to the position removal when handling in each stage of seed.

It should be further explained that two rectangular plates 13 are fixedly connected in the leg frame 4, the two rectangular plates 13 are rotatably connected on the surfaces close to each other, a turning wheel 14 for guiding the mesh belt 12 is connected on the surface, close to each other, of the two rectangular plates 13, a main driving motor and an auxiliary driving motor for driving a driving roller 9 and an auxiliary roller 10 are respectively installed at the rear end of the leg frame 4 and the rear end of the coating cylinder 3, so that multi-point synchronous driving of the mesh belt 12 is realized, the movement of the mesh belt 12 is ensured, the local over-extension caused by the integral longer mesh belt 12 is avoided, the probability of breakage of the mesh belt 12 is reduced, an installation plate 15 is fixedly connected in the coating cylinder 3, the installation plate 15 is positioned in a surrounding area formed by matching the mesh belt 12 and the coating cylinder 3, a plurality of high air volume fans are installed on the installation plate 15, the seeds needing coating on the mesh belt 12 are conveniently blown up through the installation of the high air volume fans, so that the coated seeds can be suspended in the coating cylinder 3, while facilitating further atomization of the liquid sprayed from the spray tube 18 and contact with the suspended seeds, and the excess liquid after the liquid is contacted with the seeds is blown away, the proportion between the seeds and the solution does not need to be adjusted deliberately in the coating process, the seed coating is more uniform, the front wall and the rear wall of the inner side of the coating cylinder 3 are both fixedly connected with a side frame 16 and a buckle frame 17, the two side frames 16 are both positioned above the mesh belt 12, and the bottom ends of the two side frames 16 are both contacted with the top surface of the mesh belt 12, the two buckling frames 17 are respectively positioned at the upper parts of the two side frames 16, and the two buckling frames 17 are connected with spraying pipes 18 in a buckling way, a plurality of spraying ports 19 are arranged on the two spraying pipes 18, the two spraying pipes 18 are communicated through a collecting pipe 20, and the header 20 extends through the coating drum 3 to the rear of the coating drum 3 to be connected to the spraying mechanism 2, so that the liquid in the spraying mechanism 2 is guided into the spray pipe 18.

It should be further noted that, a collecting system is installed at the top end of the coating cylinder 3, the collecting system includes a collecting cap 22, a vent is opened on the collecting cap 22 to realize ventilation inside and outside the collecting cap 22, a recycling ring half-pipe 23 is fixedly connected to the bottom end of the collecting cap 22, the bottom end of the recycling ring half-pipe 23 is connected to the coating cylinder 3, an inclined bent pipe 24 is connected between the recycling ring half-pipe 23 and the spraying mechanism 2, a rectangular opening for communicating the coating cylinder 3 and the collecting cap 22 is opened at the top end of the coating cylinder 3, through the design of the collecting system, the solution blown away by the high-air-volume fan is conveniently contacted and liquefied again, and the contacted and liquefied solution is collected for reuse, the solution utilization rate is high, a dryer is installed at the front end of the coating cylinder 3, an auxiliary drying system and an air path system for guiding the drying air generated by the dryer are installed in the coating cylinder 3, the auxiliary drying system comprises a tail frame 29 and a guide net 30, the tail frame 29 is fixedly connected in the coating cylinder 3, a plurality of large-air-volume fans are installed on the tail frame 29 and are positioned at the bottom of the drying air pipes 26, the guide net 30 is fixedly connected in the coating cylinder 3, the guide net 30 is positioned between the large-air-volume motor and the drying air pipes 26, suspension of coated seeds in the drying process is convenient to guarantee through the design of the auxiliary drying system, adhesion between the seeds in the drying process is avoided, the air path system comprises a branch pipe 25 and two drying air pipes 26, one end of the branch pipe 25 is communicated with the dryer, the other end of the branch pipe 25 penetrates through the coating cylinder 3 and is communicated with the drying air pipes 26 in the coating cylinder 3, the two drying air pipes 26 are respectively installed on the inner front wall and the inner rear wall of the coating cylinder 3 through buckle belts 27, a plurality of air outlets 28 are respectively formed on the two drying air pipes 26, through the cooperation of drying-machine and wind path system, be convenient for dry by the seed after the clothing sheet is accomplished, discharge after making the seed after the clothing sheet dry, reduced subsequent process on the one hand, the better adhesion caking that has reduced the seed of on the other hand.

It should be further explained that the coating cylinder 3 is internally fixedly connected with a chute guide strip 35, the rear end of the coating cylinder 3 is provided with a door hole, the rear end of the chute guide strip 35 passes through the door hole and extends to the rear side of the coating cylinder 3, so as to carry, guide and discharge the residual seeds and impurities on the mesh belt 12 out of the coating cylinder 3, the coating cylinder 3 is internally fixedly connected with a strip brush 31, the strip brush 31 is provided with brush hairs which are contacted with the mesh belt 12 and are convenient for cleaning the adhesion on the mesh belt 12, the right end of the strip brush 31 is flush with the right end of the chute guide strip 35, so that the chute guide strip 35 can be matched with the carrying of the impurities cleaned by the strip brush 31, the coating cylinder 3 is internally fixedly connected with a baffle 32, so as to facilitate the separation of the coating area and the drying area in the coating cylinder 3, the left end of the baffle 32 is contacted with the right end of the buckle belt 27, and the baffle 32 is provided with a through hole matched with the drying air pipe 26, improve the coupling nature between each part, a plurality of access holes have been seted up on the coating cylinder 3, be convenient for overhaul and maintain each functional unit in the coating cylinder 3, all install panel beating door 34 in a plurality of access holes, can seal the access hole, the closure of coating cylinder 3 when the seed coating of being convenient for is produced, all be provided with the attacker's groove on a plurality of panel beating doors 34, supplementary opening and closing that realizes panel beating door 34, discharge opening 21 has been seted up to the left end of coating cylinder 3, make the seed after coating is handled and drying process discharge.

The push fan, the high-air-volume fan, the main drive motor, the auxiliary drive motor and the dryer related in the embodiment are all preferably conventional-model equipment known by persons skilled in the art on the market, and can be customized to relevant manufacturers according to actual needs when necessary, in the patent, the push fan, the high-air-volume fan, the main drive motor, the auxiliary drive motor and the dryer are only used, the structure and the functions of the push fan, the installation mode and the electric connection mode are not improved, for the persons skilled in the art, only debugging operation is required according to the requirements of the use specifications, and the description is not repeated, and the main drive motor and the auxiliary drive motor adopt products with the same model to ensure multipoint synchronous driving of the mesh belt 12, ensure reliable movement of the mesh belt 12, simultaneously synchronize rotation of the driving roller 9 and rotation of the auxiliary roller 10, and avoid local over-extension caused by the whole longer mesh belt 12, reducing the probability of web 12 breakage.

In summary, the principle and process of the seed coating machine are that, when the seed coating machine is used, the seed coating machine is firstly placed at a place to be used, the electric fitting of each electric component in the seed coating machine is completed, the seed coating machine is started after the electric fitting is debugged, after the seed coating machine runs stably, seeds are fed into the main mechanism 1, the seeds processed by the stirring mechanism in the main mechanism 1 enter the reverse guide discharging cylinder 5, the seeds in the reverse guide discharging cylinder 5 slide towards the oblique right lower side under the action of gravity, then slide towards the oblique left lower side, when the seeds slide towards the oblique right lower side, the seeds are screened and cleaned under the action of the sieve plate 6, the seeds fall on the mesh belt 12 after moving towards the oblique left lower side, the main driving motor and the auxiliary driving motor are matched with each other to realize the movement of the mesh belt 12, the seeds falling on the mesh belt 12 firstly translate towards the left and then ascend into the coating cylinder 3, the seeds entering the coating drum 3 are lifted and suspended under the action of the wind power of the high-air-volume fan, the solution is sent into the spraying pipe 18 by the spraying mechanism 2 and is sprayed out through the spraying opening 19, the solution sprayed out through the spraying opening 19 moves upwards under the action of the high-air-volume fan to be contacted with the suspended seeds, and the redundant solution enters the collecting cap 22 after contacting with the seeds, flows into the recovery ring half-pipe 23 after being liquefied and gathered by contacting with the collecting cap 22, then flows back to the spraying mechanism 2 through the inclined elbow pipe 24 to realize recovery, the seed that suspends under the effect of driving fan gets into the active region of big amount of wind fan, and the drying of capsule seed is realized to the dry wind that big amount of wind fan cooperation desiccator insufflates, and the seed after the drying gets into the blank area of big amount of wind fan along with the blowing of driving fan, loses the wind-force that rises to the air and falls under the effect of gravity and discharge through discharge opening 21.

Claims

1. A seed coating machine comprises a main body mechanism (1) and a spraying mechanism (2), and is characterized by further comprising a coating barrel (3), wherein a plurality of pushing fans are installed at the left end of the main body mechanism (1), the spraying mechanism (2) is installed at the rear end of the coating barrel (3), the main body mechanism (1) is connected with a driving roller (9) through a leg frame (4), an auxiliary roller (10) and a tail roller (11) are rotationally connected in the coating barrel (3), a mesh belt (12) is in transmission connection among the driving roller (9), the auxiliary roller (10) and the tail roller (11), two rectangular plates (13) are fixedly connected in the leg frame (4), one surfaces, close to each other, of the two rectangular plates (13) are respectively and rotationally connected with a turning wheel (14) for guiding the direction of the mesh belt (12), and a main driving motor and an auxiliary driving motor for driving the driving roller (9) and the auxiliary roller (10) are respectively installed at the rear end of the leg frame (4) and the rear end of the coating barrel (3), the inner side front wall and the inner side rear wall of the coating cylinder (3) are fixedly connected with a mounting plate (15), the mounting plate (15) is provided with a plurality of high-air-volume fans, the side frames (16) and the buckling frames (17) are fixedly connected on the inner side front wall and the inner side rear wall of the coating cylinder (3), the two side frames (16) are positioned above the mesh belt (12), the bottom ends of the two side frames (16) are contacted with the top surface of the mesh belt (12), the two buckling frames (17) are respectively positioned at the upper parts of the two side frames (16), the two buckling frames (17) are internally and buckled with spraying pipes (18), the two spraying pipes (18) are respectively provided with a plurality of spraying ports (19), the two spraying pipes (18) are communicated through collecting pipes (20), the collecting pipes (20) penetrate through the coating cylinder (3) and extend out to the rear part of the coating cylinder (3) to be connected with the spraying mechanism (2), the top end of the coating cylinder (3) is provided with a collecting system, the dryer is installed at the front end of the coating drum (3), the auxiliary drying system and the air path system for guiding drying air generated by the dryer are installed in the coating drum (3), and the discharge opening (21) is formed in the left end of the coating drum (3).

2. A seed coating machine according to claim 1, characterized in that a reverse guide discharging cylinder (5) is fixedly connected in the leg frame (4), the top end of the reverse guide discharging cylinder (5) is communicated with the main body mechanism (1), sieve holes are formed in the reverse guide discharging cylinder (5), a sieve plate (6) is detachably connected in the sieve holes, mounting lug plates (7) are fixedly connected at the front end and the rear end of the reverse guide discharging cylinder (5), and a guide inclined plate (8) is rotatably connected between the two mounting lug plates (7).

3. A seed coating machine according to claim 2, characterized in that the collecting system comprises a collecting cap (22), a recovery ring half-pipe (23) is fixedly connected to the bottom end of the collecting cap (22), the bottom end of the recovery ring half-pipe (23) is connected with the coating cylinder (3), an inclined elbow pipe (24) is connected between the recovery ring half-pipe (23) and the spraying mechanism (2), and a rectangular opening for communicating the coating cylinder (3) with the interior of the collecting cap (22) is opened at the top end of the coating cylinder (3).

4. A seed coating machine according to claim 3, characterized in that, the air path system comprises a branch pipe (25) and two drying air pipes (26), one end of the branch pipe (25) is communicated with the dryer, the other end of the branch pipe (25) penetrates into the coating drum (3) and is communicated with the drying air pipes (26) in the coating drum (3), the two drying air pipes (26) are respectively installed on the inner front wall and the inner rear wall of the coating drum (3) through a buckle belt (27), and a plurality of air outlets (28) are respectively opened on the two drying air pipes (26).

5. A seed coater according to claim 4, characterised in that the auxiliary drying system comprises a tailstock (29) and a guiding net (30), the tailstock (29) is fixedly connected inside the coating drum (3), a plurality of high air volume fans are mounted on the tailstock (29), the high air volume fans are located at the bottom of the drying air duct (26), the guiding net (30) is fixedly connected inside the coating drum (3), and the guiding net (30) is located between the high air volume motor and the drying air duct (26).

6. A seed coating machine according to claim 5, characterized in that a chute guide strip (35) is fixedly connected in the coating drum (3), the rear end of the coating drum (3) is provided with a door hole, and the rear end of the chute guide strip (35) passes through the door hole and extends out to the rear side of the coating drum (3).

7. A seed coater according to claim 6, wherein a strip brush (31) is fixedly connected to the inside of the coating drum (3), the strip brush (31) being provided with bristles which are in contact with the mesh belt (12), the right end of the strip brush (31) being flush with the right end of the chute guide strip (35).

8. A seed coating machine according to claim 7, characterized in that a baffle plate (32) is fixedly connected in the coating barrel (3), the left end of the baffle plate (32) is contacted with the right end of the buckle belt (27), and the baffle plate (32) is provided with a through opening matched with the drying air pipe (26).

9. A seed coater according to claim 8, wherein a limiting column (33) for guiding the inclined plate (8) to limit is fixedly connected in the leg (4).

10. A seed coating machine according to claim 9, characterized in that the coating drum (3) is provided with a plurality of access holes, a plurality of sheet metal doors (34) are installed in the access holes, and a plurality of sheet metal doors (34) are provided with hand-clasping grooves.