Vegetable seedling raising device and seedling raising method thereof

Abstract

The invention discloses a vegetable seedling raising device and a seedling raising method thereof. The vegetable seedling raising device comprises a first mounting frame, a second mounting frame, a pit pressing mechanism, a driving mechanism and a seeding mechanism, the indenting mechanism comprises a first fixing plate; a plurality of cam lifting assemblies are arranged on the first fixing plate side by side; a pressing rod is arranged at the driving end of the cam lifting assembly; the seeding mechanism comprises an outer sleeve; a seeding roller is rotationally connected into the outer sleeve; a plurality of seeding groove groups are formed in the outer side surface of the seeding roller side by side; the seeding groove group comprises two seeding grooves which are distributed in an annular array; seeding pipes are arranged at the bottom of the outer sleeve; a baffle is rotationally connected into the seeding pipe; the baffle is in transmission connection with the seeding roller through a third transmission assembly; the driving mechanism comprises a motor, a first transmission assembly and a second transmission assembly. Through cooperation of the indenting mechanism, the driving mechanism and the seeding mechanism, precise mechanical control of indenting and seeding processes can be realized, so that precise and quantitative seeding of vegetable seeds can be ensured, and the seeding quality can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vegetable seedling culture, and more particularly to a vegetable seedling culture device and a seedling culture method thereof. BACKGROUND

[0002] Vegetable seedling culture is an important link in the process of vegetable planting, and its main purpose is to cultivate healthy and pest-free vegetable seedlings through scientific methods and technical means, so as to lay a good foundation for subsequent transplanting and growth. The existing vegetable seedling culture process mainly includes: first, the seedling culture substrate is uniformly filled into the seedling culture plug tray with multiple independent chambers, then the filled plug tray is conveyed to the next station by a conveying device, a seed hole, also known as a nest hole, is pressed on the surface of the substrate in each chamber by a pressing chamber device to a predetermined depth and shape, then a precision seeding device is used to accurately drop the seeds into each nest hole, a thin layer of substrate or vermiculite cover is covered after seeding, and finally, subsequent processing steps such as tamping and spraying irrigation are included.

[0003] A Chinese invention patent with publication number CN119174326A discloses a vegetable seedling culture device and a seedling culture method thereof, relating to the technical field of vegetable seedling culture, which comprises a vacuum suction cylinder, a seed hopper and a vibrating material dropping device. The vibrating material dropping device is installed in the vacuum suction cylinder, and a plurality of rows of storage holes are arranged along the generatrix of the vacuum suction cylinder. The vibrating material dropping device and the vacuum suction cylinder form an atmospheric pressure zone, and the vibrating material dropping device slides along the inner side of the vacuum suction cylinder. When the vibrating material dropping device collides with the storage hole, the vibrating material dropping device vibrates to ensure uniform material distribution.

[0004] The above-mentioned patent discloses a technical solution for seeding by negative pressure adsorption, which has the following problems: during the seeding process, the fluctuation of negative pressure size easily leads to unstable suction, thereby affecting the seeding accuracy. SUMMARY

[0005] Therefore, the present application provides a vegetable seedling culture device and a seedling culture method thereof, aiming to solve the problems in the prior art.

[0006] To solve the above technical problems, the present application adopts the following technical solutions: A vegetable seedling culture device, comprising: a first mounting frame, a second mounting frame, a nest pressing mechanism, a driving mechanism and a seeding mechanism; The nest pressing mechanism comprises a first fixed plate; the first fixed plate is arranged on the first mounting frame; a plurality of cam lifting assemblies are arranged side by side on the first fixed plate; a driving end of the cam lifting assembly is provided with a pressing rod; and a pressing head is arranged at the bottom of the pressing rod. The sowing mechanism comprises an outer sleeve; the outer sleeve is fixedly connected to the second mounting frame; a sowing roller is rotatably connected inside the outer sleeve; a plurality of sowing groove groups are arranged side by side on the outer side of the sowing roller; the sowing groove groups are the same in number as the pressing rods and are arranged one by one in correspondence; the sowing groove group comprises two annularly arranged sowing grooves; a sowing box is arranged on the top of the second mounting frame; a discharge port corresponding to the sowing groove is arranged at the bottom of the sowing box; a sowing pipe corresponding to the sowing groove is arranged at the bottom of the outer sleeve; a baffle for blocking and releasing seeds is rotatably connected inside the sowing pipe; the baffle is in transmission connection with the sowing roller through a third transmission assembly. The driving mechanism comprises a motor, a first transmission assembly and a second transmission assembly; the motor is fixedly connected to the first mounting frame through a second fixed plate; the cam lifting assembly and the sowing roller are in transmission connection with the motor through the first transmission assembly and the second transmission assembly respectively.

[0007] Preferably, the cam lifting assembly comprises an H-shaped plate; the H-shaped plate is fixedly connected to the first fixed plate; a cylindrical cam is rotatably connected inside the H-shaped plate; two symmetrical and communicating lifting helical grooves are arranged on the outer surface of the cylindrical cam; a lifting sleeve is arranged outside the cylindrical cam; two cam followers adapted to the lifting helical grooves are symmetrically arranged at the upper end of the lifting sleeve; a pressing rod is arranged at the bottom of the lifting sleeve; a guide hole is arranged at the bottom of the H-shaped plate; the pressing rod is arranged in the guide hole.

[0008] Preferably, a plurality of sliders are annularly arranged on the outer side of the pressing rod; a sliding groove adapted to the sliders is arranged on the inner side wall of the guide hole; the sliding groove is the same in number as the sliders and is arranged one by one in correspondence.

[0009] Preferably, the first transmission assembly comprises a first sprocket and a first chain; a second shaft is arranged at the top of the cylindrical cam; a third fixed plate is arranged on the first mounting frame; the top of the second shaft is rotatably connected to the third fixed plate; a first shaft is arranged at the output end of the motor; the first shaft and the adjacent second shaft and the adjacent second shaft are in transmission connection through the first sprocket and the first chain.

[0010] Preferably, the second transmission assembly comprises two bevel gears, a third rotating shaft, a second chain, a second sprocket and a third sprocket; the second fixed plate is provided with a vertical plate at the bottom; one end of the third rotating shaft is rotatably connected to the first mounting frame, and the other end of the third rotating shaft is rotatably connected to the vertical plate; the two bevel gears are arranged on the first rotating shaft and the third rotating shaft respectively; the two bevel gears are engaged with each other; the second sprocket is arranged on the third rotating shaft; the seeding roller is rotatably connected to the second mounting frame through a fourth rotating shaft; the third sprocket is arranged on the fourth rotating shaft; the second sprocket and the third sprocket are connected through the second chain; and the transmission ratio of the second sprocket and the third sprocket is 2:1.

[0011] Preferably, the third transmission assembly comprises a third chain and two fourth sprockets; the adjacent baffles are connected through a linkage rod; the two outermost baffles are rotatably connected to the second mounting frame through a fifth rotating shaft; the two fourth sprockets are arranged on the fourth rotating shaft and the fifth rotating shaft respectively; and the two fourth sprockets are connected through the third chain.

[0012] A vegetable seedling raising method using the vegetable seedling raising device, comprising the following steps: S1, installing the vegetable seedling raising device on the corresponding station, and adding vegetable seeds into the seeding box, the seeds falling into the corresponding seeding groove through the discharge port at the bottom of the seeding box, at this time, the baffle is perpendicular to the central axis of the seeding tube; S2, conveying the seedling tray filled with the seedling substrate to below the nest pressing mechanism through the conveying device; S3, starting the motor, the motor controlling the cam lifting assembly through the first transmission assembly, the cam lifting assembly driving the pressing rod to move downward, so that the pressing head presses the nest hole on the seedling substrate, then controlling the pressing rod to rise and restore to the original position, completing a nest pressing operation, at the same time, the motor drives the seeding roller to rotate 180° through the second transmission assembly, so that the seeding groove with seeds rotates to correspond to the seeding tube at the bottom of the outer sleeve, the seeds falling into the seeding tube under the action of its own gravity, in the process, the seeding roller drives the baffle to rotate 180° through the third transmission assembly, at this time, the baffle is perpendicular to the central axis of the seeding tube, preventing the seeds from continuing to fall; S4, the conveying device drives the seedling tray to continue to move, so that the pressed nest hole moves to below the seeding tube, then repeating S3, completing the next nest pressing operation, at the same time, the seeds continue to fall through the baffle in the baffle rotating process, and finally fall into the pressed nest hole.

[0013] The present application has the following technical effects compared with the prior art: the present application can realize precise mechanical control of the nest pressing and seeding process through the cooperation of the nest pressing mechanism, the driving mechanism and the seeding mechanism, so as to ensure accurate quantitative seeding of vegetable seeds, and further improve the seeding quality. Attached Figure Description

[0014] Figure 1 This is a front view of a vegetable seedling raising device according to the present invention; Figure 2 This is a side view of a vegetable seedling raising device according to the present invention; Figure 3 This is a schematic diagram of the first mounting bracket and the pressure indentation mechanism; Figure 4 This is a schematic diagram of the drive mechanism; Figure 5 This is a schematic diagram of the internal structure of the outer sleeve; In the diagram: 1. First mounting frame; 2. Second mounting frame; 3. First fixing plate; 4. Pressure rod; 5. Pressure head; 6. Outer sleeve; 7. Seeding roller; 8. Seeding trough; 9. Seeding box; 10. Discharge port; 11. Seeding tube; 12. Baffle; 13. Motor; 14. Second fixing plate; 15. C-shaped plate; 16. Cylindrical cam; 17. Lifting spiral groove; 18. Lifting sleeve; 19. Cam follower; 20. Slider; 21. First sprocket; 22. First chain; 23. Second rotating shaft; 24. Third fixing plate; 25. First rotating shaft; 26. Bevel gear; 27. Third rotating shaft; 28. Second chain; 29. ​​Second sprocket; 30. Third sprocket; 31. Vertical plate; 32. Fourth rotating shaft; 33. Third chain; 34. Fourth sprocket; 35. Linkage rod; 36. Fifth rotating shaft; 37. Seeding port. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example

[0017] Reference Figures 1-5 As shown, the present invention discloses a vegetable seedling raising device, comprising: a first mounting frame 1, a second mounting frame 2, a pressing mechanism, a driving mechanism, and a sowing mechanism; The pressing mechanism includes a first fixed plate 3; the first fixed plate 3 is mounted on a first mounting bracket 1; multiple cam lifting assemblies are arranged side by side on the first fixed plate 3; the driving end of the cam lifting assembly is provided with a pressing rod 4; the bottom of the pressing rod 4 is provided with a pressing head 5; The sowing mechanism comprises an outer sleeve 6; the outer sleeve 6 is fixedly connected to the second mounting frame 2; an inner rotating connection of the outer sleeve 6 has a sowing roller 7; a plurality of sowing groove groups are arranged side by side on the outer side of the sowing roller 7; the sowing groove groups are the same in number as the pressing rods 4 and are arranged one by one in correspondence; the sowing groove group comprises two annularly arranged sowing grooves 8; the second mounting frame 2 is provided at the top with a sowing box 9; the sowing box 9 is provided at the bottom with a discharge port 10 corresponding to the sowing groove 8; the outer sleeve 6 is provided at the bottom with a sowing pipe 11 corresponding to the sowing groove 8; the sowing pipe 11 is rotatably connected with a baffle 12 for blocking and releasing seeds; the baffle 12 is in transmission connection with the sowing roller 7 through a third transmission assembly. The driving mechanism comprises a motor 13, a first transmission assembly and a second transmission assembly; the motor 13 is fixedly connected to the first mounting frame 1 through a second fixing plate 14; the cam lifting assembly and the sowing roller 7 are in transmission connection with the motor 13 through the first transmission assembly and the second transmission assembly respectively.

[0018] In use, first, the vegetable seedling device is installed on the corresponding station, and vegetable seeds are added into the sowing box 9; the seeds fall into the corresponding sowing groove 8 through the discharge port 10 at the bottom of the sowing box 9; at this time, the baffle 12 is perpendicular to the central axis of the sowing pipe 11; then the seedling tray loaded with the seedling substrate is conveyed to below the pressing mechanism through the conveying device; then the motor 13 is started; the motor 13 controls the cam lifting assembly through the first transmission assembly; the cam lifting assembly drives the pressing rod 4 to move downward, so that the pressing head 5 presses the nest hole on the seedling substrate; then the pressing rod 4 is controlled to rise and return to the original position, thus completing one pressing and nest forming operation; at the same time, the motor 13 drives the sowing roller 7 to rotate 180° through the second transmission assembly, so that the sowing groove 8 with seeds rotates to correspond to the sowing pipe 11 at the bottom of the outer sleeve 6; the seeds fall into the sowing pipe 11 under the action of their own gravity; in this process, the sowing roller 7 drives the baffle 12 to rotate 180° through the third transmission assembly; at this time, the baffle 12 is perpendicular to the central axis of the sowing pipe 11, thus preventing the seeds from continuing to fall; finally, the conveying device is started to drive the seedling tray to continue to move, so that the pressed nest hole moves to below the sowing pipe 11; then S3 is repeated, thus completing the next pressing and nest forming operation; at the same time, the seeds continue to fall through the baffle 12 in the rotating process of the baffle 12, and finally fall into the pressed nest hole.

[0019] The above technical scheme can realize precise mechanical control of the pressing and nest forming and sowing processes through cooperation of the pressing and nest forming mechanism, the driving mechanism and the sowing mechanism, thus ensuring accurate and quantitative sowing of vegetable seeds, and further improving the sowing quality.

[0020] In the embodiment, the cam lifting assembly comprises a U-shaped plate 15, the U-shaped plate 15 is fixedly connected to the first fixed plate 3, a cylindrical cam 16 is rotatably connected inside the U-shaped plate 15, two symmetrical and communicating lifting helical grooves 17 are formed on the outer surface of the cylindrical cam 16, a lifting sleeve 18 is sleeved outside the cylindrical cam 16, two cam followers 19 which are adapted to the lifting helical grooves 17 are symmetrically arranged at the upper end of the lifting sleeve 18, the cam followers 19 are slidably connected in the lifting helical grooves 17 away from the lifting sleeve 18, the bottom of the lifting sleeve 18 is provided with a pressing rod 4, a guide hole is formed in the bottom of the U-shaped plate 15, the pressing rod 4 is arranged in the guide hole, the motor 13 is drivingly connected with the cylindrical cam 16 through the first transmission assembly, in use, the motor 13 drives the cylindrical cam 16 to rotate through the first transmission assembly, in the process of rotation of the cylindrical cam 16, the lifting sleeve 18 is driven to reciprocatingly move up and down through cooperation of the cam followers 19 and the lifting helical grooves 17, the pressing rod 4 and the pressing head 5 are driven to reciprocatingly move up and down by the lifting sleeve 18, in the process, the pressing rod 4 completes one descending and ascending movement when the cylindrical cam 16 rotates 180°.

[0021] In the embodiment, a plurality of sliding blocks 20 are arranged in an annular array on the outer side of the pressing rod 4, a sliding groove which is adapted to the sliding blocks 20 is formed on the inner side wall of the guide hole, the number of the sliding grooves is the same as that of the sliding blocks 20, and the sliding grooves are arranged one by one in correspondence with the sliding blocks 20, the sliding blocks 20 are slidably connected in the corresponding sliding grooves, and the stability of the movement of the pressing rod can be improved through cooperation of the sliding blocks and the sliding grooves.

[0022] In the embodiment, the first transmission assembly comprises a first sprocket 21 and a first chain 22, the top of the cylindrical cam 16 is provided with a second rotating shaft 23, the first mounting frame 1 is provided with a third fixed plate 24, the top of the second rotating shaft 23 is rotatably connected to the third fixed plate 24, the output end of the motor 13 is provided with a first rotating shaft 25, the first rotating shaft 25 and the adjacent second rotating shaft 23 and the adjacent second rotating shaft 23 are drivingly connected through the first sprocket 21 and the first chain 22, in use, the motor 13 is started, the motor 13 drives the first rotating shaft 25 to rotate, the first rotating shaft 25 transmits power to all the second rotating shafts 23 through the first sprocket 21 and the first chain 22, so as to drive all the cylindrical cams 16 to synchronously rotate at the same speed, and the consistency of the actions of all the pressing rods 4 and the pressing heads 5 is ensured.

[0023] In the embodiment, the second transmission assembly comprises two bevel gears 26, a third rotating shaft 27, a second chain 28, a second sprocket 29 and a third sprocket 30; the second fixed plate 14 is provided with a vertical plate 31 at the bottom; the third rotating shaft 27 is rotatably connected to the first mounting frame 1 at one end and rotatably connected to the vertical plate 31 at the other end; the two bevel gears 26 are arranged on the first rotating shaft 25 and the third rotating shaft 27 respectively; the two bevel gears 26 are engaged with each other; the second sprocket 29 is arranged on the third rotating shaft 27; the seeding roller 7 is rotatably connected to the second mounting frame 2 through a fourth rotating shaft 32; the third sprocket 30 is arranged on the fourth rotating shaft 32; the second sprocket 29 and the third sprocket 30 are connected through the second chain 28; the transmission ratio of the second sprocket 29 to the third sprocket 30 is 2:1; in use, the motor 13 drives the first rotating shaft 25 to rotate, the first rotating shaft 25 drives the third rotating shaft 27 to rotate through the two bevel gears 26, the third rotating shaft 27 drives the fourth rotating shaft 32 to rotate through the second chain 28, the second sprocket 29 and the third sprocket 30, and the fourth rotating shaft 32 drives the seeding roller 7 to rotate; in this process, the first rotating shaft 25 rotates 1 circle, and the fourth rotating shaft 32 synchronously rotates 1 / 2 circle, that is, the cylindrical cam 16 rotates 1 circle, and the seeding roller 7 synchronously rotates 1 / 2 circle.

[0024] In the embodiment, the third transmission assembly comprises a third chain 33 and two fourth sprockets 34; the adjacent baffles 12 are connected through a linkage rod 35; the two baffles 12 located at the outermost sides are rotatably connected to the second mounting frame 2 through a fifth rotating shaft 36; the two fourth sprockets 34 are arranged on the fourth rotating shaft 32 and the fifth rotating shaft 36 respectively; the two fourth sprockets 34 are connected through the third chain 33; when the fourth rotating shaft 32 rotates, the fifth rotating shaft 36 is driven to rotate through the third chain 33 and the fourth sprockets 34, and the fifth rotating shaft 36 drives the baffles 12 to rotate through the linkage rod 35; in this process, the fourth rotating shaft 32 rotates 1 circle, and the fifth rotating shaft 36 synchronously rotates 1 circle, that is, the seeding roller 7 rotates 1 circle, and the baffles 12 synchronously rotate 1 circle.

[0025] In the embodiment, the outer sleeve 6 is provided with a seeding port 37 at the bottom end; the seeding pipe 11 is connected to the bottom end of the seeding port 37.

[0026] The application also discloses a vegetable seedling raising method using the vegetable seedling raising device. S1, the vegetable seedling raising device is installed on the corresponding station, and vegetable seeds are added into the seeding box 9; the seeds fall into the corresponding seeding groove 8 through the discharge port 10 at the bottom of the seeding box 9; at this time, the baffles 12 are perpendicular to the central axis of the seeding pipe 11; S2, the seedling tray filled with seedling substrate is conveyed to below the nest pressing mechanism through the conveying device; S3, the motor 13 is started, the motor 13 controls the cam lifting assembly through the first transmission assembly, the cam lifting assembly drives the pressing rod 4 to move downwards, the pressing head 5 is pressed on the nursery substrate to form a nest, then the pressing rod 4 is controlled to rise and return to the original position, a nest pressing operation is completed, at the same time, the motor 13 drives the seeding roller 7 to rotate 180 DEG through the second transmission assembly, the seeding groove 8 with seeds is rotated to correspond to the seeding pipe 11 at the bottom of the outer sleeve 6, the seeds fall into the seeding pipe 11 under the action of gravity, in the process, the seeding roller 7 drives the baffle 12 to rotate 180 DEG through the third transmission assembly, at this time, the baffle 12 is perpendicular to the central axis of the seeding pipe 11, and the seeds are prevented from falling continuously; S4, the conveying device drives the nursery tray to continue to move, so that the pressed nest moves to the position below the seeding pipe 11, then S3 is repeated, the next nest pressing operation is completed, at the same time, the seeds continue to fall through the baffle 12 in the process of rotation of the baffle 12, and finally fall into the pressed nest.

[0027] The above is only a preferred embodiment of the present application, and does not limit the technical range of the present application, so any slight modification, equivalent change and modification made according to the technical essence of the present application to the above embodiment are still within the technical range of the present application.

Claims

1. A vegetable seedling raising device, characterized in that, The utility model relates to a kind of automatic seedling planting machine, including: First mounting bracket (1), second mounting bracket (2), indentation mechanism, drive mechanism and seeding mechanism; The indentation mechanism includes first fixed plate (3);The first fixed plate (3) is arranged on the first mounting bracket (1);A plurality of cam lifting assemblies are provided side by side on the first fixed plate (3);The drive end of the cam lifting assembly is provided with a pressing rod (4);The bottom of the pressing rod (4) is provided with a pressure head (5); The seeding mechanism includes an outer sleeve (6);The outer sleeve (6) is fixedly connected to the second mounting bracket (2);The outer sleeve (6) is rotatably connected with a seeding roller (7) inside;A plurality of seeding groove groups are provided side by side on the outer side of the seeding roller (7);The number of the seeding groove groups is the same as that of the pressing rods (4), and they are arranged one by one in correspondence;The seeding groove group includes two annularly arrayed seeding grooves (8);The second mounting bracket (2) is provided with a seeding box (9) on the top;The bottom of the seeding box (9) is provided with a discharge port (10) corresponding to the seeding groove (8);The bottom of the outer sleeve (6) is provided with a seeding pipe (11) corresponding to the seeding groove (8);The inside of the seeding pipe (11) is rotatably connected with a baffle (12) for blocking and releasing seeds;The baffle (12) is drivingly connected with the seeding roller (7) through a third transmission assembly; The drive mechanism includes a motor (13), a first transmission assembly and a second transmission assembly;The motor (13) is fixedly connected to the first mounting bracket (1) through a second fixed plate (14);The cam lifting assembly and the seeding roller (7) are drivingly connected with the motor (13) through the first transmission assembly and the second transmission assembly respectively.

2. The vegetable seedling raising device according to claim 1, wherein The cam lifting assembly includes a U-shaped plate (15);The U-shaped plate (15) is fixedly connected to the first fixed plate (3);The inside of the U-shaped plate (15) is rotatably connected with a cylindrical cam (16);Two symmetrical and communicating lifting helical grooves (17) are formed on the outer surface of the cylindrical cam (16);The cylindrical cam (16) is sleeved with a lifting sleeve (18) on the outside;Two cam followers (19) that are matched with the lifting helical grooves (17) are symmetrically arranged on the upper end of the lifting sleeve (18);The bottom of the lifting sleeve (18) is provided with a pressing rod (4);A guide hole is formed in the bottom of the U-shaped plate (15);The pressing rod (4) is arranged in the guide hole.

3. A device for growing vegetable seedlings according to claim 2, wherein A plurality of sliders (20) are annularly arrayed on the outer side of the pressing rod (4);A sliding groove matched with the sliders (20) is formed on the inner side wall of the guide hole;The number of the sliding groove is the same as that of the sliders (20), and they are arranged one by one in correspondence.

4. The vegetable seedling raising device according to claim 2, wherein The first transmission assembly comprises a first sprocket (21) and a first chain (22); the cylindrical cam (16) is provided with a second rotating shaft (23) at the top; the first mounting frame (1) is provided with a third fixed plate (24); the top of the second rotating shaft (23) is rotatably connected to the third fixed plate (24); the output end of the motor (13) is provided with a first rotating shaft (25); the first rotating shaft (25) and the adjacent second rotating shaft (23), and the adjacent second rotating shaft (23) are drivingly connected through the first sprocket (21) and the first chain (22).

5. A device for growing vegetable seedlings according to claim 4, characterized in that The second transmission assembly comprises two bevel gears (26), a third rotating shaft (27), a second chain (28), a second sprocket (29) and a third sprocket (30); the bottom of the second fixed plate (14) is provided with a vertical plate (31); one end of the third rotating shaft (27) is rotatably connected to the first mounting frame (1), and the other end of the third rotating shaft (27) is rotatably connected to the vertical plate (31); the two bevel gears (26) are arranged on the first rotating shaft (25) and the third rotating shaft (27) respectively; the two bevel gears (26) are engaged with each other; the second sprocket (29) is arranged on the third rotating shaft (27); the seeding roller (7) is rotatably connected to the second mounting frame (2) through a fourth rotating shaft (32); the third sprocket (30) is arranged on the fourth rotating shaft (32); the second sprocket (29) and the third sprocket (30) are connected through the second chain (28); the transmission ratio of the second sprocket (29) to the third sprocket (30) is 2:

1.

6. A device for growing vegetable seedlings according to claim 5, wherein The third transmission assembly comprises a third chain (33) and two fourth sprockets (34); adjacent baffles (12) are connected through a linkage rod (35); the two outermost baffles (12) are rotatably connected to the second mounting frame (2) through a fifth rotating shaft (36); the two fourth sprockets (34) are arranged on the fourth rotating shaft (32) and the fifth rotating shaft (36) respectively; the two fourth sprockets (34) are connected through the third chain (33).

7. A method for raising seedlings of vegetables, characterized by, The vegetable seedling raising device as claimed in any one of claims 1-6 comprises the following steps: S1, installing the vegetable seedling raising device on the corresponding station, and adding vegetable seeds into the seeding box (9); the seeds fall into the corresponding seeding groove (8) through the discharge port (10) at the bottom of the seeding box (9); at this time, the baffle (12) is perpendicular to the central axis of the seeding pipe (11); S2, conveying the seedling tray filled with seedling substrate to the bottom of the nest pressing mechanism through the conveying device; S3, start the motor (13), the motor (13) through the first transmission assembly control cam lifting assembly, cam lifting assembly driven pressure rod (4) to move down, make the pressure head (5) on the nursery substrate press out the nest hole, then control the pressure rod (4) rises, restore to zero, complete a nest press work, at the same time, the motor (13) through the second transmission assembly drive seeding roller (7) rotation 180°, make the seeding groove (8) with seeds rotate to the corresponding with the bottom of the sleeve (6) seeding tube (11), the seed in the self gravity falls into the seeding tube (11), in the process, the seeding roller (7) through the third transmission assembly drive baffle (12) rotation 180°, at this time, the baffle (12) and the middle axis of the seeding tube (11) perpendicular, prevent the seed continue to fall; S4, the conveying device drive the nursery tray continue to move, make the pressed nest hole moves to the seeding tube (11) below, then repeat S3, complete the next nest press work at the same time, the seed in the baffle (12) rotation process through the baffle (12) continue to fall, finally fall into the pressed nest hole.

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