Seedling raising device for sweet potato seedling raising in winter

Abstract

The invention provides a seedling raising device for sweet potato winter seedling raising, which comprises a frame body, a seedling raising shed is arranged on the frame body, an in-out conveyor is arranged on one side of the frame body outside the seedling raising shed, an in-out port is arranged at the tail end of the in-out conveyor of the seedling raising shed, and a plurality of seedling raising tray supporting strips are arranged in the seedling raising shed of the frame body. A plurality of water supplementing pipes are arranged at the upper end in the seedling raising shed, the lower end of each water supplementing pipe is communicated with a plurality of water spraying nozzles, and a plurality of light supplementing lamps and infrared heating lamps are arranged above the water supplementing pipes in the seedling raising shed; the frame body is provided with a longitudinal conveying mechanism and a transverse conveying mechanism which are crisscrossed below the seedling raising tray supporting strips, the transverse conveying mechanism is connected with a conveying frame in a sliding mode, and the upper portion of the conveying frame is connected with a material taking conveyor through a lifting mechanism; and a hole pressing mechanism, a seeding mechanism and a rod inserting mechanism are sequentially arranged on the frame body above the in-out conveyor. The sweet potato seedling raising device can automatically perform sweet potato seedling raising in winter, and the problem of seedling vine can be effectively avoided in a small rod inserting mode.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural seedling cultivation, and relates to a seedling cultivation device for cultivating sweet potato seedlings in winter. Background Art

[0002] Sweet potatoes are an important food and cash crop, cultivated worldwide. They are highly adaptable and have low soil requirements. However, to ensure sweet potato yield and quality, seedling cultivation techniques are crucial. Traditional sweet potato seedling cultivation relies heavily on natural conditions, typically carried out after spring temperatures warm up. However, with changing market demand and technological advancements, year-round seedling cultivation, especially in winter, has become crucial for improving sweet potato production efficiency.

[0003] Sweet potatoes primarily reproduce through tubers or vines, rather than traditional "seed" sowing. This makes them suitable for large-scale field production and planting, but they are susceptible to toxins carried by seed potatoes or mother vines. Therefore, seed-raising is essential for scientific research, breeding, and new variety development, disrupting the persistent transmission of viral diseases during asexual reproduction and providing a genetic foundation for the development of disease-resistant, high-yielding, high-quality varieties. Furthermore, seed-raising is a key step in hybrid breeding, accelerating the selection and breeding of new varieties and playing an irreplaceable role in gene editing and molecular breeding.

[0004] Winter seedling cultivation is crucial for meeting early spring market demand, extending the planting cycle, and improving land utilization. Particularly in cold climates, winter seedling cultivation effectively mitigates adverse weather conditions, ensuring that sweet potato seedlings are transplanted within the optimal timeframe. Furthermore, winter seedling cultivation ensures sufficient high-quality seedlings are prepared in advance, laying the foundation for large-scale planting.

[0005] However, raising seedlings in winter presents unique challenges. Due to the high environmental control requirements, maintaining optimal temperature, humidity, and light conditions becomes crucial. Furthermore, sweet potato seedlings grow rapidly, and especially when densely planted in limited spaces, the vines tend to become entangled. This not only increases management complexity but also makes it difficult to separate them during transplanting, severely impacting transplanting efficiency and seedling survival rates. Summary of the Invention

[0006] The purpose of the present invention is to provide a seedling raising device for raising sweet potato seedlings in winter, aiming to solve the problem.

[0007] In order to solve the above technical problems, the present invention provides a seedling raising device for raising sweet potato seedlings in winter, comprising a frame body, a seedling raising shed is provided on the frame body, an in-and-out conveyor is provided on one side of the frame body outside the seedling raising shed, the seedling raising shed is provided with an inlet and outlet at the tail end of the in-and-out conveyor, an in-and-out passage perpendicular to the in-and-out conveyor is provided at the inlet and outlet in the seedling raising shed, a plurality of seedling tray support bars parallel to the in-and-out conveyor and distributed at equal intervals are provided on the frame body in the seedling raising shed, and an opening is provided between every two seedling tray support bars facing one end of the in-and-out passage, a plurality of water supply pipes are provided at the upper end of the seedling raising shed, a plurality of water supply pipes are connected to the lower end of each water supply pipe, and a plurality of fill lights and infrared heating lamps are provided above the water supply pipes in the seedling raising shed;

[0008] The frame is provided with a longitudinal conveying mechanism arranged along the length direction of the in-and-out conveyor below the support strips of the seedling tray, and a transverse conveying mechanism is provided in the transverse direction below the support strips of the seedling tray, and the transverse conveying mechanism is driven to move longitudinally by the longitudinal conveying mechanism, and a conveying frame is slidably connected to the transverse conveying mechanism, and a material taking conveyor matched with the in-and-out conveyor is connected above the conveying frame, and the material taking conveyor and the conveying frame are connected by a lifting mechanism;

[0009] The frame is provided with a hole pressing mechanism, a sowing mechanism and a rod inserting mechanism in sequence above the in-and-out conveyor toward the front and rear ends.

[0010] By adopting the above technical solution, when raising seedlings, the seedling tray filled with soil matrix is ​​placed on the in-and-out conveyor, and the in-and-out conveyor drives the seedling tray to pass through the pressing mechanism, sowing mechanism and rod insertion mechanism in sequence, and performs pressing holes, sowing and rod insertion in sequence;

[0011] After the sowing and insertion of the rods are completed, the feeding conveyor moves to the end of the in-and-out conveyor, and is raised to the same height as the in-and-out conveyor through the scissor-type lifting mechanism, and the seedling tray on the in-and-out conveyor is moved to the feeding conveyor. The horizontal conveying mechanism drives the seedling tray to move horizontally, and the vertical conveying mechanism drives the seedling tray to move vertically. Before entering the seedling tray placement channel, the scissor-type lifting mechanism raises the seedling tray. After entering the designated position, the scissor-type lifting mechanism causes the seedling tray to drop onto the seedling tray support bar. After completion, the feeding conveyor is driven to move to the in-and-out conveyor position. When seedlings are cultivated, water is sprayed on the seedling tray through the sprinkler nozzle to replenish water for the seedlings. When light is needed, the fill light is used to supplement the light required for seedling growth. The infrared heating lamp is used when the temperature is low in winter, and infrared light is emitted to supplement heat for the seedling shed.

[0012] The present invention is further configured such that the longitudinal conveying mechanism includes two longitudinal threaded shafts rotatably connected to both sides of the frame body and arranged along the length direction of the inlet and outlet conveyor, and the frame body is equipped with a longitudinal drive motor for driving the rotating shafts of the longitudinal threaded shafts.

[0013] The present invention is further configured as follows: the transverse conveying mechanism includes two relatively arranged movable connecting plates, the outer side of each movable connecting plate is provided with a longitudinal threaded sleeve threadedly connected to the longitudinal threaded shaft, a limiting shaft is connected between the two movable connecting plates, a transverse threaded shaft is rotatably connected between the two movable connecting plates, a transverse driving motor for driving the transverse threaded shaft to rotate is installed on the outside of one of the movable connecting plates, a transverse threaded sleeve threadedly connected to the transverse threaded shaft is provided at the lower end of the conveying frame, and a limiting sliding sleeve slidably connected to the limiting shaft is provided at the lower end of the conveying frame.

[0014] The present invention is further configured such that the lifting mechanism is a scissor-type lifting mechanism, and a lifting drive hydraulic rod for driving the lifting mechanism is provided in the scissor-type lifting mechanism.

[0015] The present invention is further configured as follows: the pressure hole mechanism includes a pressure hole hydraulic cylinder arranged from top to bottom, the frame body is provided with a mounting bracket connected to the upper end of the pressure hole hydraulic cylinder, the lower end of the pressure hole hydraulic cylinder is connected to an upper pressure hole disk, the lower end of the upper pressure hole disk is movably connected to a lower pressure hole disk, a support spring is connected between the upper pressure hole disk and the lower pressure hole disk, a plurality of through holes distributed in an array are opened through the lower pressure hole disk, and a guide tube is provided downward at each through hole of the lower pressure hole disk, and each guide tube The lower end of the tube is connected to a plurality of inwardly closed elastic plugs, and a plurality of pressure hole plug shafts corresponding to the perforations are downwardly provided on the lower side of the upper pressure hole disk, and an inverted L-shaped blocking piece that can block the lower pressure hole disk is upwardly provided on both sides of the inlet and outlet conveyor. When the lower end of the lower pressure hole disk contacts the seed dropping tube, the sowing mechanism includes a storage groove, and the lower end of the storage groove is downwardly provided with a plurality of pressure hole plug shafts corresponding to the pressure hole plug shafts, the pressure hole plug shaft is pressed down to push the closed elastic plug outward.

[0016] By adopting the above technical solution, when the seedling tray moves to the bottom of the hole-pressing mechanism, the hole-pressing hydraulic cylinder extends to push the upper hole-pressing tray and the lower hole-pressing tray downward, so that the elastic insert of the guide tube can be inserted into the soil matrix of the seedling tray until the lower hole-pressing tray contacts the inverted L-shaped baffle, so that it cannot move downward. At this time, the upper hole-pressing tray continues to move downward, and pushing the hole-pressing plug shaft downward can push the closed elastic insert outward, and push the soil in the seedling hole outward to form a sowing hole. After the hole-pressing is completed, the hole-pressing hydraulic cylinder shortens to reset the hole-pressing mechanism.

[0017] The present invention is further configured such that a plurality of limiting holes are provided on the edge of the lower pressure hole plate, and a plurality of limiting connecting shafts are downwardly provided on the upper pressure hole plate and are slidably connected to the limiting holes in a one-to-one correspondence, and the lower end of each limiting connecting shaft extends out of the corresponding limiting hole to provide a limiting cap, and each limiting connecting shaft is covered with a support spring.

[0018] The top of the seed discharging opening is used as thesame as the present invention, and the bottom of the seed discharging opening is used as the guide rail for the seed discharging opening. The seed discharging opening is used as the guide rail for the seed discharging opening. The top of the seed discharging opening is used as the guide rail for the seed discharging opening.

[0019] By adopting the above technical solution, when the in-and-out conveyor drives the seedling tray to move to the bottom of the sowing mechanism, the seeds in the storage tank enter the seed removal hole. When the electromagnet is energized to attract the metal attraction plate, the seed removal hole and the seed drop hole are connected accordingly. At this time, the seeds fall along the seed drop tube into the pressed sowing hole. After sowing is completed, the electromagnet is de-energized, and the seed removal plate is pushed back to its original position by the reset spring, so that the seed removal hole and the seed drop hole are staggered and separated.

[0020] The present invention is further configured such that a first vibration motor is provided outside the storage tank.

[0021] The present invention is further configured as follows: the rod insertion mechanism includes a rod insertion plate connected to the frame and located above the inlet and outlet conveyor, the rod insertion plate is provided with a plurality of rod insertion holes distributed in an array, a plurality of rod insertion guide tubes connected to the rod insertion holes in a one-to-one correspondence are downwardly provided at the lower end of the rod insertion plate, a rod pressing plate matched with the rod insertion plate is connected above the rod insertion plate, the rod pressing plate is connected to the edge of the rod insertion plate by a hydraulic telescopic rod, and a plurality of rod pressing shafts slidably connected to the rod insertion holes in a one-to-one correspondence are downwardly provided at the lower end of the rod pressing plate;

[0022] The upper end of the rod insertion plate is horizontally slidably connected to a transversely arranged strip-shaped inclined rod storage groove, and connecting frames are downwardly arranged on both sides of the rod insertion plate, each connecting frame is rotatably connected to a threaded drive shaft, and each connecting frame is installed with a rod-dropping drive motor for driving the corresponding threaded drive shaft to rotate, and threaded drive sleeves threadedly connected to the threaded drive shaft are provided on both sides of the strip-shaped inclined rod storage groove, and the upper end of the strip-shaped inclined rod storage groove is provided with an opening inclined upward away from the rod insertion plate, and one side of the strip-shaped inclined rod storage groove is connected to a plurality of lower rod channels corresponding to a horizontal row of rod insertion holes, each lower rod channel gradually turns vertically downward away from the strip-shaped inclined rod storage groove, and the bottom of each lower rod channel at the vertically downward end is open.

[0023] By adopting the above technical solution, the in-and-out conveyor drives the seedling tray to move to the bottom of the rod insertion mechanism, and the small sticks in the strip-shaped inclined rod storage groove gradually enter the lower stick channel, and the stick-dropping drive motor drives the threaded drive shaft to rotate, driving the strip-shaped inclined rod storage groove to move along the rod insertion plate, so that the small sticks in the lower stick channel gradually fall into the rod insertion tube, and then the hydraulic telescopic rod is shortened, so that the pressing rod axis can be extended downward into the rod insertion tube, and the small sticks in the rod insertion tube are inserted downward into the soil matrix on the seedling tray, so that a small stick is inserted around each sowing hole.

[0024] The present invention is further configured such that a second vibration motor is provided on the strip-shaped inclined rod storage slot.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] First, the present invention adopts a seedling raising shed for sweet potato seedling raising, the temperature, humidity and light of which can be automatically adjusted, so that the sweet potato seedling raising can be completed in winter to meet the demand of the early spring market and extend the planting cycle;

[0027] Secondly, the present invention is also equipped with a hole pressing mechanism, a sowing mechanism and a rod inserting mechanism, which can perform hole pressing, sowing and rod inserting in sequence. Automatic sowing can be completed by simply placing the seedling tray filled with soil matrix into the device. The degree of automation is high, which can effectively reduce labor costs and improve work efficiency.

[0028] Third, the present invention can insert a small stick around the sowing hole during sowing. When the vines of the sweet potato seedlings grow, they can climb upward along the small stick after contacting the small stick, and are not likely to grow around and be entangled with the surrounding vines. The sweet potato seedlings can be more easily separated during transplanting, thereby improving transplanting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2Used for the seedling tray support bars, longitudinal conveying mechanism and transverse conveying mechanism in the display rack;

[0031] Figure 3 Used to demonstrate the connection between the conveyor rack and the reclaiming conveyor;

[0032] Figure 4 Used to display the water supply pipes, light supply lamps and infrared heating lamps in the seedling shed;

[0033] Figure 5 It is an exploded diagram of the hole-pressing mechanism;

[0034] Figure 6 It is a schematic diagram of the overall structure of the seeding mechanism;

[0035] Figure 7 A first vibration motor for displaying a storage tank;

[0036] Figure 8 It is a schematic diagram of the overall structure of the rod insertion mechanism;

[0037] Figure 9 Used to demonstrate the second vibration motor on the bar tilt storage slot.

[0038] Among them, 1. frame; 2. seedling shed; 3. inlet and outlet conveyor; 4. inlet and outlet; 5. inlet and outlet channel; 6. seedling tray support bar; 7. water supply pipe; 8. sprinkler nozzle; 9. fill light; 10. infrared heating lamp; 11. longitudinal threaded shaft; 12. longitudinal drive motor; 13. movable connecting plate; 14. longitudinal threaded sleeve; 15. limit shaft; 16. transverse threaded shaft; 17. conveyor frame; 18. transverse threaded sleeve; 19. limit sliding sleeve; 20. reclaiming conveyor; 21. scissor lift mechanism; 22. lifting drive hydraulic rod; 23. pressure hole hydraulic cylinder; 24. mounting frame; 25. upper pressure hole plate; 26. lower pressure hole plate; 27. limit hole; 28. limit connecting shaft; 29. ​​limit cap; 30. support spring; 31. Perforation; 32. Guide tube; 33. Elastic insert; 34. Pressing hole insert shaft; 35. Inverted L-shaped baffle; 36. Storage slot; 37. Seed drop hole; 38. Seed drop tube; 39. First vibration motor; 40. Seed removal plate; 41. Seed removal hole; 42. Horizontal slide hole; 43. Metal attraction plate; 44. Electromagnet; 45. Limiting insert shaft; 46. Limiting insert hole; 47. Return spring; 48. Rod insertion plate; 49. Rod insertion hole; 50. Rod insertion guide tube; 51. Pressing rod plate; 52. Hydraulic telescopic rod; 53. Pressing rod shaft; 54. Strip-shaped inclined rod storage slot; 55. Second vibration motor; 56. Connecting frame; 57. Threaded drive shaft; 58. Rod drop drive motor; 59. Threaded drive sleeve; 60. Rod drop channel; 61. Horizontal drive motor. DETAILED DESCRIPTION

[0039] The following is a further detailed description of a seedling raising device for raising sweet potato seedlings in winter, proposed by the present invention, in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in a very simplified form and are not to exact scale, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention. The same or similar reference numerals in the accompanying drawings represent the same or similar components.

[0040] Example, see Figure 1-9 A seedling raising device for raising sweet potato seedlings in winter includes a frame 1, a seedling raising shed 2 is provided on the frame 1, an inlet and outlet conveyor 3 is provided on one side of the frame 1 outside the seedling raising shed 2, the seedling raising shed 2 is provided with an inlet and outlet 4 at the tail end of the inlet and outlet conveyor 3, and an inlet and outlet channel 5 vertical to the inlet and outlet conveyor 3 is provided at the inlet and outlet 4 in the seedling raising shed 2. The frame 1 is provided with six parallel inlet and outlet conveyors 3 and seedling tray support bars 6 distributed at equal intervals in the seedling shed 2. A seedling tray placement channel is formed between every two seedling tray support bars 6. Every two seedling tray support bars 6 are open between one end of the inlet and outlet channel 5. A plurality of water supply pipes 7 are provided at the upper end of the seedling shed 2. The lower end of each water supply pipe 7 is connected to a plurality of water sprinkler nozzles 8 for replenishing water for the seedlings. A plurality of fill lights 9 and infrared heating lamps 10 are provided above the water supply pipes 7 in the seedling shed 2. The fill lights 9 are used to supplement the light required for the growth of the seedlings. The infrared heating lamps 10 are used to emit infrared light to supplement the heat for the seedling shed 2 when the temperature is low in winter.

[0041] The frame 1 is provided with a longitudinal conveying mechanism arranged along the length direction of the in-and-out conveyor 3 below the seedling tray support bar 6. The longitudinal conveying mechanism includes two longitudinal threaded shafts 11 that are rotatably connected to the two sides of the frame 1 and arranged along the length direction of the in-and-out conveyor 3. The frame 1 is equipped with two longitudinal drive motors 12 for driving the rotating shafts of the longitudinal threaded shafts 11. The frame 1 is provided with a transverse conveying mechanism laterally below the seedling tray support bar 6. The transverse conveying mechanism includes two oppositely arranged movable connecting plates 13. The outer side of each movable connecting plate 13 is provided with a longitudinal threaded sleeve 14 that is threadedly connected to the longitudinal threaded shaft 11, so that the longitudinal conveying mechanism can drive the transverse conveying mechanism to move longitudinally. Two limiting shafts 15 are connected between the two movable connecting plates 13. A transverse threaded shaft 16 is rotatably connected between the two movable connecting plates 13. A transverse drive motor 61 for driving the rotation of the transverse threaded shaft 16 is installed on the outside of one of the movable connecting plates 13.

[0042] A conveying frame 17 is slidably connected to the transverse conveying mechanism, and the lower end of the conveying frame 17 is provided with a transverse threaded sleeve 18 threadedly connected to the transverse threaded shaft 16, and the lower end of the conveying frame 17 is provided with two limiting sliding sleeves 19 slidably connected to the limit shaft 15, so that the transverse conveying mechanism can drive the conveying frame 17 to move horizontally, and the top of the conveying frame 17 is connected to a feeding conveyor 20 that cooperates with the in-and-out conveyor 3, so that the seedling tray on the in-and-out conveyor 3 can be transferred to the feeding conveyor 20, and the feeding conveyor 20 is connected to the conveying frame 17 by a lifting mechanism. The lifting mechanism is a scissor-type lifting mechanism 21, and a lifting drive hydraulic rod 22 for driving it to lift and lower is provided in the scissor-type lifting mechanism 21.

[0043] The frame 1 is provided with a hole pressing mechanism, a sowing mechanism and a rod inserting mechanism in sequence above the inlet and outlet conveyor 3 and in the front and rear end direction.

[0044] The hole-pressing mechanism includes a hole-pressing hydraulic cylinder 23 arranged from top to bottom, and a mounting frame 24 connected to the upper end of the hole-pressing hydraulic cylinder 23 is provided upwardly. The lower end of the hole-pressing hydraulic cylinder 23 is connected to an upper hole-pressing disk 25, and a lower hole-pressing disk 26 is movably connected below the upper hole-pressing disk 25. Four limiting holes 27 are provided on the edge of the lower hole-pressing disk 26, and four limiting connecting shafts 28 are provided downwardly with the limiting holes 27 corresponding to the limiting holes 27. The lower end of each limiting connecting shaft 28 extends out of the corresponding limiting hole 27 and is provided with a limiting cap 29, and each limiting connecting shaft 28 is covered with a support spring 30.

[0045] A plurality of perforations 31 distributed in an array are provided through the lower pressure hole plate 26, and the perforations 31 correspond one-to-one to the seedling holes on the seedling plate. A guide tube 32 is provided downwardly at the lower end of the lower pressure hole plate 26 at each perforation 31, and the lower end of each guide tube 32 is connected to two inwardly closed elastic plugs 33. The guide tubes 32 and the elastic plugs 33 are made of polycarbonate. A plurality of pressure hole plug shafts 34 corresponding one-to-one to the perforations 31 are provided downwardly on the lower side of the upper pressure hole plate 25, and an inverted L-shaped baffle 35 that can block the lower pressure hole plate 26 is provided upwardly on both sides of the inlet and outlet conveyor 3. When the lower end of the lower pressure hole plate 26 contacts the inverted L-shaped baffle 35, the pressure hole plug shaft 34 is pressed downward to push the closed elastic plug 33 outward, which is used to push the soil in the seedling hole outward to form a sowing hole.

[0046] The sowing mechanism includes a storage tank 36 connected to the frame 1 and located above the inlet and outlet conveyor 3. The upper end of the storage tank 36 is open, and the bottom of the storage tank 36 is provided with a plurality of seed holes 37 distributed in an array. The seed holes 37 correspond one-to-one to the seed holes on the seedling tray. The lower end of the storage tank 36 is downwardly provided with a plurality of seed tubes 38 connected one-to-one to the seed holes 37. A first vibration motor 39 is provided outside the storage tank 36. A seed removal plate 40 is slidably connected to the bottom of the storage tank 36. A plurality of seed removal holes 41 corresponding one-to-one to the seed removal holes 37 are provided through the seed removal plate 40. The vibration of the first vibration motor 39 can make the seeds in the storage tank 36 enter the seed removal holes 41. A horizontal sliding hole 42 is provided on the opposite sides of the bottom of the storage tank 36. The two sides of the seed removal plate 40 extend from the corresponding horizontal sliding hole 42 respectively. A metal attraction plate 43 that can be magnetically attracted is provided upward on one side of the seed removal plate 40 extending from the storage tank 36. The outside of the storage tank 36 is provided with a The electromagnet 44 cooperates with the metal attraction plate 43, and the metal attraction plate 43 is provided with two limit plug shafts 45 outside the electromagnet 44 in the direction of the storage slot 36. The side wall of the storage slot 36 is provided with a limit plug hole 46 that is slidably connected to the limit plug shaft 45. The limit plug hole 46 is covered with a return spring 47 located between the metal attraction plate 43 and the electromagnet 44. When the electromagnet 44 is energized to attract the metal attraction plate 43, the seed taking hole 41 is correspondingly connected to the seed dropping hole 37. When the electromagnet 44 is powered on, the seed taking hole 41 and the seed dropping hole 37 are staggered and separated.

[0047] The rod insertion mechanism includes a rod insertion plate 48 connected to the frame 1 and located above the inlet and outlet conveyor 3. The rod insertion plate 48 is provided with a plurality of rod insertion holes 49 distributed in an array. The rod insertion holes 49 correspond one-to-one to the seedling holes on the seedling tray. The lower end of the rod insertion plate 48 is downwardly provided with a plurality of rod insertion tubes 50 that are connected one-to-one with the rod insertion holes 49. A rod pressing plate 51 that matches it is connected above the rod insertion plate 48. The rod pressing plate 51 is connected to the edge of the rod insertion plate 48 by two hydraulic telescopic rods 52. The lower end of the rod pressing plate 51 is downwardly provided with a plurality of rod pressing shafts 53 that are slidably connected one-to-one with the rod insertion holes 49. When the hydraulic telescopic rod 52 is shortened, the rod pressing shaft 53 can be extended downward into the rod insertion tube 50.

[0048] The upper end of the rod insertion plate 48 is horizontally slidably connected to a transversely arranged strip-shaped inclined rod storage groove 54, and a second vibration motor 55 is provided on the strip-shaped inclined rod storage groove 54. A connecting frame 56 is downwardly provided on both sides of the rod insertion plate 48, and each connecting frame 56 is rotatably connected to a threaded drive shaft 57. Each connecting frame 56 is installed with a rod dropping drive motor 58 for driving the corresponding threaded drive shaft 57 to rotate, and a threaded drive sleeve 59 threadedly connected to the threaded drive shaft 57 is provided on both sides of the strip-shaped inclined rod storage groove 54. The upper end of the strip-shaped inclined rod storage groove 54 is provided with an opening inclined upward away from the rod insertion plate 48, which is convenient for inserting small rods. One side of the strip-shaped inclined rod storage groove 54 is connected with multiple lower rod channels 60 corresponding to a horizontal row of rod insertion holes 49. Each lower rod channel 60 gradually turns vertically downward away from the strip-shaped inclined rod storage groove 54. The bottom of each lower rod channel 60 is open at the vertically downward end. The vibration of the second vibration motor 55 can make the small rods in the strip-shaped inclined rod storage groove 54 gradually enter the lower rod channel 60, and then fall from the lower rod channel 60 into the rod insertion guide tube 50.

[0049] Working principle: before raising seedlings, first add sweet potato seeds to the storage tank 36 and add small sticks to the strip-shaped inclined stick storage slot 54. When raising seedlings, put the seedling tray filled with soil matrix onto the in-and-out conveyor 3, and the in-and-out conveyor 3 drives the seedling tray to move to the bottom of the hole-pressing mechanism. The hole-pressing hydraulic cylinder 23 extends to push the upper hole-pressing plate 25 and the lower hole-pressing plate to move downward, so that the elastic insert 33 of the guide tube 32 can be inserted into the soil matrix of the seedling tray until the lower hole-pressing plate 26 contacts the inverted L-shaped baffle 35, so that it cannot move downward. At this time, the upper hole-pressing plate 25 continues to move downward, pushing the hole-pressing plug shaft 34 downward to push the closed elastic insert 33 outward, and the soil in the seedling hole is pushed outward to form a sowing hole. After the hole-pressing is completed, the hole-pressing hydraulic cylinder 23 shortens to reset the hole-pressing mechanism.

[0050] The in-and-out conveyor 3 drives the seedling tray to move to the bottom of the sowing mechanism. The first vibration motor 39 generates vibration to make the seeds in the storage tank 36 enter the seed taking hole 41. When the electromagnet 44 is energized to attract the metal attraction plate 43, the seed taking hole 41 is connected to the seed drop hole 37. At this time, the seeds fall along the seed drop tube 38 into the pressed sowing hole. After sowing, the electromagnet 44 is de-energized, and the reset spring 47 pushes the seed taking plate 40 to reset, so that the seed taking hole 41 and the seed drop hole 37 are staggered and separated.

[0051] The in-and-out conveyor 3 drives the seedling tray to move to the bottom of the rod insertion mechanism, and the second vibration motor 55 vibrates to make the small rods in the strip-shaped inclined rod storage groove 54 gradually enter the lower rod channel 60, and the rod-dropping drive motor 58 drives the threaded drive shaft 57 to rotate, driving the strip-shaped inclined rod storage groove 54 to move along the rod insertion plate 48. Under the action of vibration, the small rods in the lower rod channel 60 gradually fall into the rod insertion guide tube 50, and then the hydraulic telescopic rod 52 is shortened, so that the pressing rod shaft 53 can be extended downward into the rod insertion guide tube 50, and the small rods in the rod insertion guide tube 50 are inserted downward into the soil matrix on the seedling tray, so that a small rod is inserted around each sowing hole;

[0052] After the seeding is completed, the material conveyor 20 is driven to move to the position of the in-and-out conveyor 3. When seeding is completed, water is sprayed on the seedling tray by the water spray nozzle 8 to replenish water for the seedlings. When light is needed, the fill light 9 is used to supplement the light required for seedling growth. The infrared heating lamp 10 is used to emit infrared light to supplement heat for the seedling shed 2 when the temperature is low in winter.

[0053] It should also be noted that all “disposed” and similar descriptive words in this application (especially in the specification) express that there is or exists a connection relationship between two structures, but the specific means by which the two are connected are not too limited, and are generally conventional connection means, that is, it should be understood that the means are prior art and do not need to be elaborated on. For example, “n is disposed on m” simply expresses that structure n is present on structure m, and the two are specifically connected by welding, riveting, adhesive bonding or integral molding, which are all within the scope of protection of this application; for another example, “y is rotatably disposed on x” simply expresses that y and x can rotate relative to each other, and whether the two are connected by bearings, or y directly passes through x and is connected to x by rotation, or other feasible methods, are all within the scope of protection of this application.

[0054] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A seedling raising device for raising sweet potato seedlings in winter, comprising a frame (1), a seedling raising shed (2) being provided on the frame (1), characterized in that: The frame (1) is provided with an in-and-out conveyor (3) on one side outside the seedling shed (2); the seedling shed (2) is provided with an inlet and outlet (4) at the tail end of the in-and-out conveyor (3); an inlet and outlet passage (5) perpendicular to the in-and-out conveyor (3) is provided at the inlet and outlet (4) in the seedling shed (2); the frame (1) is provided with a plurality of seedling tray support bars (6) in parallel with the in-and-out conveyor (3) and distributed at equal intervals in the seedling shed (2); each of the two seedling tray support bars (6) is open toward one end of the in-and-out passage (5); a plurality of water supply pipes (7) are provided at the upper end of the seedling shed (2); the lower end of each water supply pipe (7) is connected to a plurality of water spray nozzles (8); a plurality of fill lights (9) and infrared heating lamps (10) are provided above the water supply pipes (7) in the seedling shed (2); The frame (1) is provided with a longitudinal conveying mechanism arranged along the length direction of the in-and-out conveyor (3) below the seedling tray support bar (6), and the frame (1) is provided with a transverse conveying mechanism transversely below the seedling tray support bar (6). The transverse conveying mechanism is driven to move longitudinally by the longitudinal conveying mechanism. A conveying frame (17) is slidably connected to the transverse conveying mechanism. A material taking conveyor (20) matched with the in-and-out conveyor (3) is connected above the conveying frame (17). The material taking conveyor (20) and the conveying frame (17) are connected via a lifting mechanism. The frame (1) is provided with a hole pressing mechanism, a sowing mechanism and a rod inserting mechanism in sequence above the inlet and outlet conveyor (3) in the direction of the front and rear ends.

2. A seedling raising device for raising sweet potato seedlings in winter according to claim 1, characterized in that: The longitudinal conveying mechanism comprises two longitudinal threaded shafts (11) which are rotatably connected to the two sides of the frame (1) and arranged along the length direction of the inlet and outlet conveyor (3); the frame (1) is equipped with a longitudinal driving motor (12) for driving the rotating shaft of the longitudinal threaded shaft (11).

3. A seedling raising device for raising sweet potato seedlings in winter according to claim 2, characterized in that, The transverse conveying mechanism comprises two movable connecting plates (13) arranged opposite to each other, the outer side of each movable connecting plate (13) is provided with a longitudinal threaded sleeve (14) threadedly connected to the longitudinal threaded shaft (11), a limiting shaft (15) is connected between the two movable connecting plates (13), a transverse threaded shaft (16) is rotatably connected between the two movable connecting plates (13), a transverse driving motor (61) for driving the transverse threaded shaft (16) to rotate is installed on the outside of one of the movable connecting plates (13), a transverse threaded sleeve (18) threadedly connected to the transverse threaded shaft (16) is provided at the lower end of the conveying frame (17), and a limiting sliding sleeve (19) slidably connected to the limiting shaft (15) is provided at the lower end of the conveying frame (17).

4. A seedling raising device for raising sweet potato seedlings in winter according to claim 1, characterized in that: The lifting mechanism is a scissor-type lifting mechanism (21), and a lifting driving hydraulic rod (22) for driving the lifting mechanism to move upward and downward is provided in the scissor-type lifting mechanism (21).

5. A seedling raising device for raising sweet potato seedlings in winter according to claim 1, characterized in that: The hole-pressing mechanism comprises a hole-pressing hydraulic cylinder (23) arranged from top to bottom, a mounting frame (24) connected to the upper end of the hole-pressing hydraulic cylinder (23) is arranged upward on the frame body (1), an upper hole-pressing disk (25) is connected to the lower end of the hole-pressing hydraulic cylinder (23), a lower hole-pressing disk (26) is movably connected to the lower end of the upper hole-pressing disk (25), a supporting spring (30) is connected between the upper hole-pressing disk (25) and the lower hole-pressing disk (26), a plurality of perforations (31) distributed in an array are provided through the lower hole-pressing disk (26), a guide tube (32) is provided downward at each perforation (31) at the lower end of the lower hole-pressing disk (26), and each guide tube ( The lower ends of the upper and lower pressure hole disks (25) are connected with a plurality of inwardly closed elastic inserts (33), the lower side of the upper pressure hole disk (25) is downwardly provided with a plurality of pressure hole insert shafts (34) corresponding one to one with the perforations (31), and both sides of the inlet and outlet conveyor (3) are upwardly provided with inverted L-shaped blocking pieces (35) capable of blocking the lower pressure hole disk (26). When the lower end of the lower pressure hole disk (26) contacts the seeding mechanism, the sowing mechanism includes a storage groove (36), and the lower end of the storage groove (36) is downwardly provided with a plurality of seed dropping tubes (38) corresponding one to one with the pressure hole insert shafts (34), the pressure hole insert shaft (34) is pressed downward to push the closed elastic inserts (33) outward.

6. A seedling raising device for raising sweet potato seedlings in winter according to claim 5, characterized in that: The edge of the lower pressure hole plate (26) is provided with a plurality of limiting holes (27), and the upper pressure hole plate (25) is provided with a plurality of limiting connecting shafts (28) slidingly connected to the limiting holes (27) in a one-to-one corresponding manner. The lower end of each limiting connecting shaft (28) extends out of the corresponding limiting hole (27) and is provided with a limiting cap (29), and each limiting connecting shaft (28) is covered with a supporting spring (30).

7. A seedling raising device for raising sweet potato seedlings in winter according to claim 1, characterized in that: The sowing mechanism includes a storage tank (36) connected to the frame (1) and located above the inlet and outlet conveyor (3), the upper end of the storage tank (36) is open, and the bottom of the storage tank (36) is provided with a plurality of seed holes (37) distributed in an array, and the lower end of the storage tank (36) is downwardly provided with a plurality of seed tubes (38) connected to the seed holes (37) in a one-to-one correspondence, and the bottom of the storage tank (36) is slidably connected to a seed plate (40), and a plurality of seed holes (41) corresponding to the seed holes (37) are provided through the seed plate (40), and horizontal sliding holes (42) are provided on opposite sides of the bottom of the storage tank (36), and the two sides of the seed plate (40) are provided with a plurality of seed holes (41) corresponding to the seed holes (37). The seed taking plate (40) extends out from the corresponding horizontal sliding hole (42) respectively. A metal attraction plate (43) capable of being magnetically attracted is provided on one side of the seed taking plate (40) extending out of the storage slot (36). An electromagnet (44) cooperating with the metal attraction plate (43) is provided on the outside of the storage slot (36). A limiting plug shaft (45) is provided on the metal attraction plate (43) outside the electromagnet (44) in the direction of the storage slot (36). A limiting plug hole (46) slidably connected to the limiting plug shaft (45) is provided on the side wall of the storage slot (36). A reset spring (47) is provided on the outer cover of the limiting plug hole (46) between the metal attraction plate (43) and the electromagnet (44).

8. A seedling raising device for raising sweet potato seedlings in winter according to claim 7, characterized in that: A first vibration motor (39) is provided outside the storage tank (36).

9. A seedling raising device for raising sweet potato seedlings in winter according to claim 1, characterized in that: The rod insertion mechanism includes a rod insertion plate (48) connected to the frame (1) and located above the inlet and outlet conveyor (3), the rod insertion plate (48) is provided with a plurality of rod insertion holes (49) distributed in an array, the lower end of the rod insertion plate (48) is downwardly provided with a plurality of rod insertion guide tubes (50) corresponding to the rod insertion holes (49), and a rod pressing plate (51) matched therewith is connected above the rod insertion plate (48), the rod pressing plate (51) is connected to the edge of the rod insertion plate (48) through a hydraulic telescopic rod (52), and the lower end of the rod pressing plate (51) is downwardly provided with a plurality of rod pressing shafts (53) corresponding to the rod insertion holes (49) in a sliding manner; The upper end of the rod inserting plate (48) is horizontally slidably connected to a transversely arranged strip-shaped inclined rod storage groove (54), and connecting frames (56) are downwardly arranged on both sides of the rod inserting plate (48), each connecting frame (56) is rotatably connected to a threaded drive shaft (57), and each connecting frame (56) is equipped with a rod drop driving motor (58) for driving the corresponding threaded drive shaft (57) to rotate, and both sides of the strip-shaped inclined rod storage groove (54) are provided with a screw thread drive shaft (57) A threaded drive sleeve (59) is threadedly connected, and the upper end of the strip-shaped inclined rod storage groove (54) is provided with an opening inclined upward in a direction away from the rod insertion plate (48), and one side of the strip-shaped inclined rod storage groove (54) is connected with a plurality of lower rod channels (60) corresponding to a horizontal row of rod insertion holes (49), each lower rod channel (60) gradually turns vertically downward in a direction away from the strip-shaped inclined rod storage groove (54), and the bottom of each lower rod channel (60) is open at the vertically downward end.

10. A seedling raising device for raising sweet potato seedlings in winter according to claim 9, characterized in that: A second vibration motor (55) is provided on the strip-shaped inclined rod storage slot (54).

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