An automated seedling raising device and seedling raising method

Abstract

The present application relates to the field of seedling raising, and particularly relates to an automatic seedling raising device and a seedling raising method. The device comprises a seedling raising box, a seedling raising tray, a sowing structure and an auxiliary structure. The seedling raising box is externally provided with a conveying structure and a liquid storage tank, and is internally provided with a multi-layer translation structure and an environment adjusting system. An opening is provided on the front side of the seedling raising box, and a lifting structure is provided at the opening. Multiple groups of seedling raising trays are conveyed in and out of the device through the conveying structure, and are placed on the translation structure one by one for seedling raising. Multiple groups of seedling grooves are provided on each group of seedling raising trays. The sowing structure is located above the lifting structure. The auxiliary structure is provided on the lifting structure, and is provided with a grabbing assembly matched with the seedling raising tray and an auxiliary assembly corresponding to the seedling groove. The present application realizes automatic operation of the whole process of rice seedling raising through the precise cooperation between the auxiliary structure and the seedling raising tray. The scheme significantly improves the operation efficiency and the uniformity of seedlings, reduces the labor cost and the consumption of water, fertilizer and pesticide, and provides reliable support for large-scale seedling raising.

Description

Technical Field

[0001] This invention relates to the field of seedling cultivation, and in particular to an automated seedling cultivation device and method. Background Technology

[0002] Rice is one of the most important food crops in my country and even globally, playing a pivotal role in grain production in terms of planting area and yield. In the entire rice production process, the seedling raising stage is the crucial starting point that determines the final yield and quality. High-quality, robust seedlings not only effectively resist post-transplanting stress and shorten the seedling establishment period, but also lay a good foundation for subsequent tillering, heading, and grain filling. Traditional rice seedling raising mostly uses open-field methods, which are significantly affected by natural factors such as climate and pests, and also suffer from prominent problems such as large seed consumption, low seedling survival rate, and poor seedling uniformity. In recent years, with the promotion of large-scale and intensive rice planting models, factory-style centralized seedling raising has gradually become the mainstream direction. This places higher demands on sowing uniformity, environmental controllability, and operational efficiency, urgently requiring the development of automated seedling raising equipment that can meet the needs of large-scale production.

[0003] Chinese patent application publication number CN121400267A discloses a rice seedling raising equipment and method, including a placement frame. A sliding groove is provided on one side of the placement frame, and a connecting block is slidably connected inside the sliding groove. A limiting base plate is fixed to one end of the connecting block, and positioning plates are fixed to both sides of the top of the limiting base plate. A first connecting member is hinged to the surface of the positioning plate, and a material cylinder is fixed to the bottom of the first connecting member. An arc-shaped clamping plate is fixed to the bottom of the material cylinder.

[0004] Currently, some rice seedling raising equipment has been proposed and applied in production practice, but significant technical limitations remain: First, seed placement relies solely on a sliding hopper, lacking precise control over the landing point of individual seeds, easily leading to uneven density or missed sowing. Second, the equipment's functions are relatively fragmented, with sowing, watering, and monitoring relying on separate actuators, resulting in limited overall automation and hindering closed-loop management of the entire seedling raising process. Third, it lacks real-time sensing and feedback adjustment capabilities for seedling growth, and there is a lack of effective linkage between environmental control and the actual physiological needs of seedlings, making it difficult to implement differentiated and precise control for different growth stages. Therefore, how to provide a more integrated automated seedling raising device with precise sowing and intelligent monitoring functions has become a pressing technical problem to be solved in this field. Summary of the Invention

[0005] To address the problems existing in the background technology, an automated seedling raising device and method are proposed. Through the precise coordination of auxiliary structures and seedling trays, the entire rice seedling raising process is automated. This solution significantly improves operational efficiency and seedling uniformity, reduces labor costs and water, fertilizer, and pesticide consumption, and provides reliable support for large-scale seedling raising.

[0006] This invention proposes an automated seedling raising device, including a seedling box, a seedling tray, a sowing structure, and auxiliary structures. The seedling box has an external conveying structure and a liquid storage tank, and an internal multi-layered translational structure and environmental regulation system. An opening with a lifting mechanism is located at the front. Multiple seedling trays enter and exit the equipment via the conveying structure and are simultaneously placed on the translational structure for seedling cultivation. Each seedling tray has multiple seedling troughs. The sowing structure is located above the lifting mechanism. An auxiliary structure is located on the lifting mechanism, equipped with gripping components that work with the seedling trays and auxiliary components corresponding to the seedling troughs. The auxiliary components are flip-up double-sided structures, one concave and one convex, with protrusions on the sides. During operation, the auxiliary structure is positioned opposite the seedling trays below. The gripping components grasp the seedling trays, using the concave side of the auxiliary components to pre-position the seeds and introduce disinfectant for soaking and disinfection. The convex side of the auxiliary components monitors the seedling cultivation and guides water flow for irrigation. Furthermore, the auxiliary components rotate synchronously with the protrusions, forming planting channels and facilitating seed transfer.

[0007] Preferably, the multi-layer translation structure is arranged vertically inside the seedling box; each translation structure includes a slide rail located inside the seedling box; a forward and backward moving extension frame is slidably arranged on the slide rail, and an installation frame is provided on the top of the extension frame; the seedling tray is detachably installed on the installation frame.

[0008] Preferably, a second slide rail is provided at the opening of the seedling box; the lifting structure includes a lifting frame; a slider that moves up and down along the second slide rail is provided on the outside of the lifting frame, and two sets of third slide rails, one on the left and one on the right, are provided on the inside; a mounting platform that moves back and forth is provided on the third slide rail; an auxiliary structure is provided between the two sets of mounting platforms; and a sowing structure is provided above the two sets of mounting platforms.

[0009] Preferably, the seeding structure includes a telescopic column located on the mounting platform; a translation platform is provided on the top of the telescopic column; the translation platform is located above the auxiliary structure, and a horizontally movable seeding tank is provided on the translation platform; an automatic seeding head is provided at the bottom of the seeding tank.

[0010] Preferably, the auxiliary structure includes an auxiliary plate; slide rails four are respectively provided on the left and right sides of the auxiliary plate, gripping components are respectively provided on the front and rear sides, and an auxiliary component is provided in the center; the slide rails four slide in cooperation with the mounting platform, so that the auxiliary plate can move back and forth; multiple sets of auxiliary components are arranged in a matrix; water pipes and disinfectant pipes are alternately arranged on both sides of each column of auxiliary components, and supply liquid to the auxiliary components through a connected liquid storage tank.

[0011] Preferably, the auxiliary plate is provided with through holes corresponding to the seedling trays; the auxiliary components include rotating sleeves located on both sides of the through holes and auxiliary frames located inside the through holes; the center of the auxiliary frame is provided with a hemispherical cover with one concave side and one convex side, and raised auxiliary plates are provided on the front and back sides of the outer periphery, and installation notches are provided on the left and right sides of the outer periphery; the rotating sleeve is provided with a rotatable water outlet, which extends into the installation notch to connect with the auxiliary frame; one side of the water outlet is connected to a disinfectant pipe, and the water outlet is located on the concave side of the hemispherical cover, and the other side of the water outlet is connected to a water pipe, and the water outlet is located on the convex side of the hemispherical cover.

[0012] Preferably, the auxiliary piece is semi-circular, and a guide groove is provided between the auxiliary piece and the concave side of the hemispherical cover.

[0013] Preferably, the convex side of the hemispherical cover is provided with multiple sets of guide platforms extending along the direction of the two installation notches; seedling monitoring devices are provided on both sides of the guide platforms.

[0014] Preferably, the seedling tray includes a tray body; a seedling groove is provided at the center of the tray body, and a card slot is provided on the outer periphery; card holes are provided on both sides of the card slot; the gripping component includes a gripping platform located at the bottom of the auxiliary plate; the gripping platform matches the card slot, and telescopic blocks matching the card holes are provided on both sides.

[0015] Preferably, the bottom of the seedling tray is provided with a card block that corresponds one-to-one with the card slot.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The auxiliary structure, through the coordinated action of the gripping platform and the telescopic blocks, can form a rapid and stable rigid connection with the seedling trays. This not only achieves seamless integration of empty tray loading, seed treatment, sowing and transfer, watering monitoring, and seedling unloading, but also, thanks to the vertical layered layout of the lifting structure and multi-layered translation structure, allows the same auxiliary structure to serve all levels of seedling trays within the seedling box, replacing traditional manual tray-by-tray handling and repetitive operations. Simultaneously, the stacking and coordination of the seedling trays enables the conveyor structure to transport seedling trays in batches, while the auxiliary structure maintains precise alignment between the seedling trough and auxiliary components during gripping and releasing, ensuring repeatable accuracy in seed placement, watering, and monitoring positioning. This achieves fully automated assembly line operation from empty tray loading to robust seedling output. The auxiliary component's hemispherical cover is concave on one side and convex on the other. Together with the auxiliary plates on the side, a flipping action sequentially enables seed pre-positioning and disinfectant soaking for germination when the concave side faces upward; the auxiliary plates creating a pit during the flipping process and allowing seeds to precisely slide down the guide groove for sowing; and when the convex side faces downward, the guide platform guides water flow for even irrigation, and the seedling monitor acquires seedling physiological data in situ. Crucially, the seedling monitor integrated on the convex side can detect key physiological indicators such as seedling leaf age, stem base width, and substrate moisture content in real time, feeding the data back to the environmental control system within the seedling box. This significantly improves the efficiency, automation, and intelligence of seedling cultivation, providing reliable technical support for large-scale, intensive rice seedling cultivation. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an automated seedling raising equipment; Figure 2 A breakdown diagram of the seedling tray and its translation structure; Figure 3 This is a combined diagram of the seeding structure, auxiliary structure, and lifting structure. Figure 4 This is a bottom view of the auxiliary structure; Figure 5 Structural diagram of water pipes, disinfectant pipes, and auxiliary components; Figure 6 A breakdown diagram of the auxiliary components; Figure 7 This is a bottom view of the hemispherical dome. Figure 8 This is a structural diagram of a seedling tray; Figure 9 for Figure 8 Enlarged view of point A in the middle; Figure 10 To capture the structural diagram of the component; Reference numerals: 1. Seedling box; 101. Slide rail two; 2. Translation structure; 201. Mounting frame; 202. Extension frame; 203. Slide rail one; 3. Seedling tray; 301. Tray body; 302. Seedling trough; 303. Slot; 304. Slot; 4. Auxiliary structure; 401. Auxiliary plate; 402. Slide rail four; 403. Disinfectant pipe; 404. Water pipe; 405. Auxiliary component; 40501. Rotating sleeve; 40502. Mounting notch; 40503. Auxiliary 40504, Water outlet; 40505, Hemispherical cover; 40506, Guide groove; 40507, Auxiliary plate; 40508, Flow guide platform; 40509, Seedling monitor; 406, Grabbing platform; 407, Telescopic block; 5, Sowing structure; 501, Telescopic column; 502, Translation platform; 503, Sowing tank; 6, Lifting structure; 601, Sliding block; 602, Slide rail three; 603, Lifting frame; 604, Mounting platform; 7, Conveying structure; 8, Liquid storage tank. Detailed Implementation

[0018] Example 1, as Figures 1-3 As shown, this invention proposes an automated seedling raising device, including a seedling box 1, seedling trays 3, a sowing structure 5, and an auxiliary structure 4. The seedling box 1 has an external conveying structure 7 and a liquid storage tank 8, and an internal multi-layer translational structure 2 and an environmental regulation system (temperature, humidity, light, etc.). An opening is provided on the front side, and a lifting structure 6 is installed at the opening. Multiple seedling trays 3 enter and exit the device through the conveying structure 7 (transmission belt unit), and are simultaneously placed on the translational structure 2 for seedling raising. Each seedling tray 3 has multiple seedling troughs 302. The sowing structure 5 is located above the lifting structure 6. The auxiliary structure 4 is installed on the lifting structure 6, and has gripping components that cooperate with the seedling trays 3 and auxiliary components corresponding to the seedling troughs 302. Auxiliary component 405; Auxiliary component 405 is a flip-up double-sided structure, one side concave and the other convex, with protrusions on the side; During operation, the auxiliary structure 4 is positioned opposite the seedling tray 3 below, the seedling tray 3 is gripped by the gripping component, the seeds are pre-positioned by the concave side of the auxiliary component 405 facing upward, and disinfection is carried out by introducing disinfectant solution, the seedling raising status is monitored by the convex side of the auxiliary component 405 facing downward, and water is guided for watering. In addition, the auxiliary component 405 rotates synchronously by flipping, which is used to form planting pits on the one hand and to transfer seeds on the other.

[0019] It should be further explained that the multi-layer translation structure 2 is set vertically inside the seedling box 1; each translation structure 2 includes a slide rail 203 located inside the seedling box 1; the extension frame 202 that moves back and forth is slidably set on the slide rail 203, and the top of the extension frame 202 is provided with an installation frame 201; the seedling tray 3 is detachably installed on the installation frame 201.

[0020] After the seedling trays 3 are filled with soil, they are moved to the bottom of the seedling box 1 via the conveyor structure 7. The auxiliary component 405 picks up the seedling trays 3 one by one, puts in the sterilized and pre-germinated seeds, and then transfers the seedling trays 3 onto the extended mounting frame 201. Finally, the extension frame 202 slides along the slide rail 203 to store the seedling trays 3 into the seedling box 1. Subsequently, the seedling trays 3 are periodically removed from the seedling box 1 to monitor their growth.

[0021] like Figure 1 and Figure 3 As shown, a slide rail 2 101 is provided at the opening of the seedling box 1; the lifting structure 6 includes a lifting frame 603; a slider 601 that moves up and down along the slide rail 2 101 is provided on the outside of the lifting frame 603, and two sets of slide rails 3 602, one on the left and one on the right, are provided on the inside; a mounting platform 604 that moves back and forth is provided on the slide rail 3 602; an auxiliary structure 4 is provided between the two sets of mounting platforms 604; and a sowing structure 5 is provided above the two sets of mounting platforms 604.

[0022] The slider 601 moves up and down, causing the auxiliary structure 4 to rise and fall. During the rising and falling process, it works in conjunction with the multi-layer seedling tray 3 to automatically perform feeding, seed treatment, seedling monitoring, and feeding. The mounting platform 604 moves back and forth, causing the sowing structure 5 and the auxiliary structure 4 to move back and forth, further adjusting the position of the seed pretreatment.

[0023] like Figure 3 As shown, the seeding structure 5 includes a telescopic column 501 located on the mounting platform 604; a translation platform 502 is provided on the top of the telescopic column 501; the translation platform 502 is located above the auxiliary structure 4, and a horizontally movable seeding tank 503 is provided on the translation platform 502.

[0024] It should be further noted that the bottom of the seeding tank 503 is equipped with an automatic seeding head.

[0025] Driven by the mounting platform 604, the translation platform 502, and the telescopic column 501, the seeding tank 503 moves back and forth, left and right, and up and down. By adjusting the automatic seeding head to correspond one-to-one with the auxiliary component 405, seeding can be carried out sequentially.

[0026] like Figures 4-5 As shown, the auxiliary structure 4 includes an auxiliary plate 401; slide rails 402 are respectively provided on the left and right sides of the auxiliary plate 401, gripping components are respectively provided on the front and rear sides, and an auxiliary component 405 is provided in the center; the slide rails 402 slide in cooperation with the mounting platform 604, so that the auxiliary plate 401 can move back and forth; multiple sets of auxiliary components 405 are arranged in a matrix; water pipes 404 and disinfectant pipes 403 are alternately arranged on both sides of each row of auxiliary components 405, and supply liquid to the auxiliary components 405 through the connected liquid storage tank 8.

[0027] By moving the auxiliary plate 401 back and forth, its position relative to the seedling tray 3 can be adjusted to ensure the accuracy of seed transfer, monitoring, and watering.

[0028] It should be further noted that the auxiliary plate 401 is provided with through holes that correspond one-to-one with the seedling trough 302.

[0029] like Figures 6-7As shown, the auxiliary component 405 includes a rotating sleeve 40501 located on both sides of the through hole and an auxiliary frame 40503 located inside the through hole; the auxiliary frame 40503 has a hemispherical cover 40505 with one concave side and one convex side at its center, and raised auxiliary pieces 40507 on its front and rear sides, and mounting notches 40502 on its left and right sides; the rotating sleeve 40501 is provided with a rotatable water outlet 40504, which extends into the mounting notch 40502 to connect with the auxiliary frame 40503; one side of the water outlet 40504 is connected to the disinfectant pipe 403, and the water outlet is located on the concave side of the hemispherical cover 40505, and the other side of the water outlet 40504 is connected to the water pipe 404, and the water outlet is located on the convex side of the hemispherical cover 40505.

[0030] The rotation of the water outlet 40504 drives the auxiliary frame 40503 to rotate as a whole, with the auxiliary plate 40507 rotating synchronously. The water outlets of the water outlet 40504 are staggered, with the upper outlet introducing disinfectant to the concave side of the hemispherical cover 40505 for disinfection and germination treatment of the seeds inside. The lower outlet introduces water to the convex side of the hemispherical cover 40505 for watering and seedling cultivation.

[0031] It should be further explained that the auxiliary piece 40507 is semi-circular, and a guide groove 40506 is provided between the auxiliary piece 40507 and the concave side of the hemispherical cover 40505.

[0032] When the auxiliary sheet 40507 is flipped, it can disturb the soil and create sowing holes. It also guides the seeds to fall into the sowing holes. After sowing, the auxiliary sheet 40507 is flipped in the opposite direction to backfill the holes and cover the seeds.

[0033] It should be further explained that the convex side of the hemispherical cover 40505 is provided with multiple sets of guide platforms 40508 extending along the direction of the two installation notches 40502; seedling monitoring devices 40509 are provided on both sides of the guide platforms 40508.

[0034] It should be further explained that the multiple sets of guide platforms 40508 are parallel to each other, and there are guide gaps between adjacent guide platforms 40508, so that the water flow forms a water curtain.

[0035] Water is sprayed through the outlet onto the convex side of the hemispherical cover 40505, and the guide platform 40508 extends the water flow, increasing its effective range. The water eventually falls to the seedling trough 302 under the action of gravity. The seedling monitor 40509 is used to monitor environmental data such as humidity, temperature, and light, as well as the growth of the seedlings.

[0036] like Figures 8-10As shown, the seedling tray 3 includes a tray body 301; a seedling trough 302 is provided in the center of the tray body 301, and a slot 303 is provided on the outer periphery; slot holes are provided on both sides of the slot 303; the gripping component includes a gripping platform 406 located at the bottom of the auxiliary plate 401; the gripping platform 406 matches the slot 303, and telescopic blocks 407 matching the slot holes are provided on both sides.

[0037] During the grasping process, the auxiliary structure 4 descends to the conveying structure 7. The grasping platform 406 extends into the slot 303, and the telescopic block 407 engages with the slot to grasp the seedling tray 3. After grasping, the auxiliary structure 4 transfers the disinfected seeds onto the seedling tray 3 and waters it for the first time. Then, the auxiliary structure 4 rises to the extended translational structure 2 and secures the seedling tray 3 with the seeds onto the mounting frame 201. The mounting frame 201 returns to the seedling box 1 with the seedling tray 3. During the seedling cultivation process, the translational structure 2 periodically removes the seedling tray 3 to monitor its growth. After seedling cultivation is complete, the auxiliary structure 4 grasps the seedling tray 3 again and moves it to the conveying structure 7.

[0038] It should be further explained that the bottom of the seedling tray 3 is provided with a card block 304 that corresponds one-to-one with the card slot 303; by cooperating with the card block 304 and card slot 303 on the upper and lower seedling trays 3, the seedling trays 3 can be stacked so that the conveying structure 7 can transport the seedling trays 3 in batches.

[0039] Example 2: Based on the automated seedling raising equipment in the above examples, this example proposes an automated seedling raising method. Taking rice seedling raising as an example, the specific steps are as follows: S1. Feeding and Soil Covering of Seedling Trays 3: First, multiple seedling trays 3 are stacked on the conveying structure 7. The bottom of the seedling tray 3 is engaged with the slot 303 of the tray body 301 below to achieve stable batch transportation. The conveying structure 7 moves the seedling trays 3 to below the opening of the seedling box 1. Then, the slider 601 of the lifting structure 6 slides down along the slide rail 101, driving the auxiliary structure 4 to descend to the position opposite to the seedling trays 3 on the conveying structure 7, ready for the grabbing operation. S2. Auxiliary structure 4 grips seedling tray 3: After the auxiliary structure 4 descends into position, its bottom gripping platform 406 aligns with the slot 303 on the outer periphery of the seedling tray 3 and extends in. At the same time, the telescopic blocks 407 on both sides extend outward and are inserted into the slots on both sides of the slot 303, thus completing the firm gripping of the seedling tray 3. At this time, the auxiliary structure 4 and the seedling tray 3 are precisely matched to ensure that the seedling trough 302 and the auxiliary component 405 correspond one-to-one during subsequent seed treatment. S3. Rice Seed Pre-positioning and Soaking Disinfection: After the auxiliary structure 4 grabs the seedling tray 3, the lifting structure 6 lifts it to the sowing structure 5; the concave surface of the hemispherical cover 40505 of the auxiliary component 405 faces upward, and the sowing structure 5 puts a single rice seed into the concave surface of each hemispherical cover 40505 to achieve pre-positioning; then, the disinfectant pipe 403 injects disinfectant containing bactericide (such as strong chlorine) into the concave side through the water outlet 40504 on one side to soak and disinfect the rice seeds. At the same time, the concave structure concentrates the disinfectant to ensure that the pathogens on the seed shell surface are completely killed. The soaking time is preset by the system according to the rice variety. After completion, the waste liquid is discharged, completing the pre-treatment of rice seeds to break dormancy. S4. Auxiliary component flipping and rice sowing tunnel formation: After seed disinfection, the rotating sleeves 40501 on both sides of the auxiliary component 405 drive the water outlet 40504 to rotate, causing the auxiliary frame 40503 to flip as a whole, so that the hemispherical cover 40505 changes from concave to convex. During the flipping process, the semi-circular auxiliary pieces 40507 on the front and rear sides of the outer periphery of the auxiliary frame 40503 rotate synchronously, pushing down the seedling substrate soil pre-laid in the seedling trough 302 to form a rice-specific sowing tunnel with a depth of 1.5-2.0 cm (adapted to the elongation characteristics of the rice mesocotyl). At the same time, the rice seeds in the concave surface of the hemispherical cover 40505, guided by the flipping and the guide groove 40506, fall precisely into the tunnel along the predetermined path, and then rotate in the opposite direction to backfill the sowing tunnel, completing the sowing. S5. Initial watering and installation of rice seedling trays: After sowing, the auxiliary component 405 is kept with its convex side facing down. The water pipe 404 introduces water into the convex side of the hemispherical cover 40505 through the water outlet 40504 on the other side. The water flow is evenly diffused along the guide platform 40508 and drips into the seedling trough 302 to water the rice seeds for the first time (the amount of water is based on the saturation of the substrate soil to ensure the water requirements of the rice during the germination period). Subsequently, the lifting structure 6 drives the auxiliary structure 4 to rise above the installation frame 201 extending from the opening of the seedling box 1, accurately placing the seedling tray 3 on the installation frame 201. The telescopic block 407 retracts to release the seedling tray 3, completing the installation. S6. Initial Setting of Seedling Tray Placement and Environmental Control System: The seedling trays 3 are moved layer by layer into the seedling box 1. At this time, the environmental control system starts its initial mode according to the standards for each stage of rice seedling cultivation. During the seedling emergence period, the temperature is set to 30-32℃, humidity to 90%, and continuous darkness (0% light). After the seedling emergence stage, the temperature is adjusted to 25-28℃, humidity to 80%, and light intensity to 200 μmol·m⁻¹. -2 ·s -1 Meanwhile, the CO2 concentration is controlled at 400-450ppm to provide a scientific starting environment for rice seedlings; S7. Periodic Removal: During the seedling raising process, the multi-layer translation structure 2 moves the seedling tray 3 to the opening according to a set cycle (e.g., every 4 hours). The lifting structure 6 drives the auxiliary structure 4 to descend, so that the seedling monitor 40509 on the convex side of the auxiliary component 405 faces the seedling trough 302 to perform multi-dimensional detection, including substrate soil moisture content (target 60-70%), leaf temperature, canopy light intensity, seedling leaf age, and stem base width. The monitoring data is fed back to the environmental control system in real time, forming a closed-loop linkage control. If the moisture content of the substrate soil is detected to be below 55%, the system will automatically increase the ambient humidity setpoint and trigger the auxiliary structure 4 to replenish water (S8). If excessive growth of seedlings is detected (stem base width is too thin and plant height is abnormally high), the system will automatically reduce light intensity and shorten light duration, while lowering the nighttime temperature to 18-20℃ to inhibit excessive growth. If an abnormally high leaf temperature is detected, the system will automatically increase ventilation and spray cooling to prevent the seedlings from being burned by high temperatures. The system automatically adjusts the subsequent temperature curve based on the monitored leaf age progress (such as gradually cooling down the seedlings after the three-leaf stage), thus achieving precise seedling raising based on the physiological feedback of rice seedlings. S8. Precise water replenishment as needed during seedling raising: When the seedling monitor 40509 detects that the moisture content of the substrate soil is lower than the suitable range for rice (60%), the system automatically issues a water replenishment command; the auxiliary structure 4 moves to the top of the corresponding seedling tray 3 through the lifting structure 6, the auxiliary component 405 keeps the convex surface facing down, and the water pipe 404 supplies water to the convex side of the hemispherical cover 40505 through the water outlet 40504. The water flow falls evenly along the guide platform 40508 in a water curtain shape, simulating the effect of micro-sprinkler irrigation, avoiding water flow impacting the rice seedling roots; after water replenishment, the seedling monitor 40509 continuously tracks the change in moisture content until it reaches 70%, then stops, ensuring that the rice seedling roots are in a healthy growth state of "alternating dry and wet"; S9. Dynamic Monitoring and Hardening-off Control of Rice Seedling Age: During the mid-to-late stages of seedling raising (approximately 7 days before transplanting), the seedling monitor 40509 focuses on monitoring the leaf age (target 3.5-4.0 leaves), stem base width (≥2.5mm), and number of white roots of rice seedlings, and sends the data to the environmental control system. Based on the monitoring results, the system automatically initiates the hardening-off program, gradually reducing nighttime temperature (from 20℃ to 15℃), increasing ventilation (adjusted by the opening of the ventilation vent in seedling box 1), reducing watering (moisture content controlled at 55-60%), and simultaneously increasing light intensity to 300 μmol·m⁻². -2 ·s -1 This enhances the seedlings' resistance to stress. During this process, the monitor 40509 is removed and tested once a day to ensure that the hardening intensity matches the actual tolerance of the seedlings and to prevent over-hardening or under-hardening. S10. Feeding and stacking output after seedling raising: After the seedling monitor 40509 confirms that the rice seedlings have reached the transplanting standard (leaf age of 3.5 leaves or more, stem base width ≥2.5mm, many white roots and good root system), the system determines that the seedling raising is completed; the auxiliary structure 4 grabs the seedling tray 3 again through the grabbing component, removes it from the mounting frame 201, and moves it to the conveying structure 7 through the lifting structure 6; after release, the seedling tray 3 is stacked in sequence through the cooperation of the card block 304 and the card slot 303, and the conveying structure 7 transports the seedling tray 3 full of rice seedlings to the field transplanting process in batches, completing the entire process of automated rice seedling raising.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automated seedling raising device, characterized in that, include: Seedling box (1), seedling box (1) is equipped with a conveying structure (7) and a liquid storage tank (8) on the outside, and a multi-layer translation structure (2) and an environmental regulation system on the inside. An opening is provided on the front side and a lifting structure (6) is provided at the opening. Seedling trays (3), multiple seedling trays (3) enter and exit the equipment through the conveying structure (7), and are placed on the translation structure (2) for seedling cultivation. Each seedling tray (3) is equipped with multiple seedling troughs (302). The seeding structure (5) is located above the lifting structure (6); And an auxiliary structure (4), which is set on the lifting structure (6), and is provided with a gripping component that cooperates with the seedling tray (3) and an auxiliary component (405) corresponding to the seedling trough (302). The auxiliary component (405) is a flip-out double-sided structure with one side concave and the other convex, and protrusions on the side. When working, the auxiliary structure (4) is positioned opposite to the seedling tray (3) below. The seedling tray (3) is grabbed by the grabbing component. The seeds are pre-positioned by the concave side of the auxiliary component (405) facing upward, and disinfected by soaking in disinfectant. The seedlings are monitored by the convex side of the auxiliary component (405) facing downward, and water is guided for watering. In addition, the auxiliary component (405) rotates synchronously by flipping the protrusions, which is used to form planting pits on the one hand and to transfer seeds on the other.

2. The automated seedling raising equipment according to claim 1, characterized in that, The multi-layer translational structure (2) is set vertically inside the seedling box (1); Each translation structure (2) includes a slide rail (203) located inside the seedling box (1); an extension frame (202) that moves back and forth is slidably set on the slide rail (203), and an installation frame (201) is set on the top of the extension frame (202). The seedling tray (3) is detachably mounted on the mounting frame (201).

3. The automated seedling raising equipment according to claim 1, characterized in that, A slide rail 2 (101) is installed at the opening of the seedling box (1). The lifting structure (6) includes a lifting frame (603); a slider (601) that moves up and down along the slide rail two (101) is provided on the outside of the lifting frame (603), and two sets of slide rail three (602) that are on the left and right are provided on the inside; a mounting platform (604) that moves back and forth is provided on the slide rail three (602). The auxiliary structure (4) is set between the two sets of mounting platforms (604); The seeding structure (5) is set above the two sets of mounting platforms (604).

4. The automated seedling raising equipment according to claim 3, characterized in that, The seeding structure (5) includes a telescopic column (501) located on the mounting platform (604); a translation platform (502) is provided on the top of the telescopic column (501); the translation platform (502) is located above the auxiliary structure (4), and a horizontally movable seeding tank (503) is provided on the translation platform (502). An automatic seeding head is installed at the bottom of the seeding tank (503).

5. The automated seedling raising equipment according to claim 3, characterized in that, The auxiliary structure (4) includes an auxiliary plate (401); slide rails (402) are provided on the left and right sides of the auxiliary plate (401), gripping components are provided on the front and rear sides, and an auxiliary component (405) is provided in the center. The slide rail (402) slides in conjunction with the mounting platform (604), allowing the auxiliary plate (401) to move back and forth; Multiple auxiliary components (405) are arranged in a matrix; water pipes (404) and disinfectant pipes (403) are alternately arranged on both sides of each row of auxiliary components (405), and the liquid is supplied to the auxiliary components (405) through the connected storage tank (8).

6. The automated seedling raising equipment according to claim 5, characterized in that, The auxiliary plate (401) is provided with through holes that correspond one-to-one with the seedling trough (302); The auxiliary component (405) includes a rotating sleeve (40501) located on both sides of the through hole and an auxiliary bracket (40503) located inside the through hole. The auxiliary frame (40503) has a concave-convex hemispherical cover (40505) at its center, and raised auxiliary pieces (40507) on its front and rear sides, and mounting notches (40502) on its left and right sides. The rotating sleeve (40501) is provided with a rotatable water outlet (40504), which extends into the installation notch (40502) to connect with the auxiliary frame (40503); one side of the water outlet (40504) is connected to the disinfectant pipe (403), and the water outlet is located on the concave side of the hemispherical cover (40505); the other side of the water outlet (40504) is connected to the water pipe (404), and the water outlet is located on the convex side of the hemispherical cover (40505).

7. The automated seedling raising equipment according to claim 6, characterized in that, The auxiliary piece (40507) is semi-circular, and a guide groove (40506) is provided between the auxiliary piece (40507) and the concave side of the hemispherical cover (40505).

8. The automated seedling raising equipment according to claim 6, characterized in that, The convex side of the hemispherical cover (40505) is provided with multiple sets of guide platforms (40508) extending along the two installation notches (40502); seedling monitoring devices (40509) are provided on both sides of the guide platforms (40508).

9. The automated seedling raising equipment according to claim 1, characterized in that, The seedling tray (3) includes a tray body (301); a seedling trough (302) is provided in the center of the tray body (301), and a card slot (303) is provided on the outer periphery; card holes are provided on both sides of the card slot (303); The gripping assembly includes a gripping platform (406) located at the bottom of the auxiliary plate (401); the gripping platform (406) matches the card slot (303), and telescopic blocks (407) matching the card holes are provided on both sides.

10. The automated seedling raising equipment according to claim 9, characterized in that, The bottom of the seedling tray (3) is provided with a card block (304) that corresponds one-to-one with the card slot (303).

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