Multifunctional seedling placing tray transplanter for seedling transplanting and seedling transplanting method

Abstract

The invention belongs to the technical field of agricultural planting, and discloses a multifunctional seedling placing tray transplanter for seedling transplanting and a seedling transplanting method.The multifunctional seedling placing tray transplanter comprises a frame, a seedling placing tray, a seedling transplanting tray, a seedling transferring device, a first motor, a seedling transplanting device, a second motor and the like; the frame is connected with a walking wheel, limiting rods are respectively fixed at four corners in the frame, the limiting rods are connected with a rice transplanting disc in an up-down sliding manner, and a plurality of rice transplanting devices with preset row spacing and plant spacing are arranged in the rice transplanting disc in an array manner. A cutting strip is slidably connected in the seedling placing disc and is used for controlling the opening and closing of the seedling placing disc; the first motor controls lifting of the transplanting disc through the threaded rod, and the second motor controls opening and closing of the transplanting device through the electric telescopic rod. Through automatic operation, the problems of low manual transplanting efficiency and inconsistent seedling spacing are solved, the transplanting efficiency can be effectively improved, rational close planting of seedlings is ensured, and the accuracy of scientific research data is improved. The method is suitable for rice scientific research, especially seedling transplanting in the rice breeding process.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and particularly relates to a multifunctional seedling transplanting machine for seedling trays and a method for transplanting seedlings. Background Art

[0002] In rice scientific research, especially in the process of rice breeding, the method of rice transplanting mainly relies on manual transplanting. Due to problems in manual operation such as difficulty in controlling the number of seedlings per hill, high labor intensity, and low work efficiency, and the fact that it is often difficult to keep the spacing between seedlings consistent during the operation, resulting in uneven distribution of seedlings and inconsistent transplanting depths, which in turn affects the scientific research data of rice.

[0003] Currently, the transplanting machines sold on the market are only for large-scale production, and there is no machine for rice scientific research, especially for rice breeding transplanting. Young people do not know how to transplant rice and are not willing to do so. It is urgent to solve the problem of transplanting in rice scientific research, especially in rice breeding, and at the same time solve the disadvantages brought by manual transplanting. Summary of the Invention

[0004] The present invention aims to provide a multifunctional seedling transplanting machine for seedling trays to solve the problems of low efficiency of manual transplanting and inconsistent distances between seedlings in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multifunctional seedling transplanting machine for seedling trays includes a frame and a seedling tray. The frame is connected with traveling wheels. At the four corner points inside the frame, there are connecting limit rods. The limit rods are connected with the seedling transplanting tray in a vertically sliding manner. There is a seedling transfer device on the upper side of the seedling transplanting tray. When in the reduced state, the size of the seedling transfer device is the same as that of the seedling tray. The bottom of the seedling tray is connected with a movable bottom plate. By sliding the bottom plate, the opening and closing of the bottom of the seedling tray can be controlled. The side of the seedling transplanting tray is threadedly connected with a threaded rod. The top of the threaded rod passes through the seedling transplanting seat and is connected with a first motor. The output shaft of the first motor is connected with the threaded rod. The first motor is used to control the rotation of the threaded rod. A number of seedling transplanters are arranged in an array in the seedling transplanting tray. Each seedling transplanter includes two conical plates, which form a hollow conical structure. The two conical plates are rotatably connected between them. One conical plate is fixedly connected with the seedling transplanting tray, and the other conical plate is rotatably connected with a connecting rod. One end of the connecting rod is rotatably connected with the conical plate, and the other end is rotatably connected with a moving frame. The moving frame is arranged on the upper side of the seedling transplanting tray and is horizontally slidably connected with the seedling transplanting tray. There is a second motor connected to the side of the seedling transplanting tray. The second motor is connected with the moving frame through an electric telescopic rod. There is a push handle connected to the side of the frame. An up-down button and a transplanting button are arranged on the push handle. The up-down button and the transplanting button are used to control the first motor and the second motor.

[0007] Further, a rotary harrow is arranged between the front traveling wheels.

[0008] Furthermore, anti-slip patterns are provided on the walking wheels for operation.

[0009] Furthermore, a handle is connected to the side of the cutting strip.

[0010] The present invention also provides a method for transplanting seedlings, which includes the following steps:

[0011] a) Within a limited working area, arrange the seedlings on a seedling placing tray, and the seedling placing tray has a plurality of small seedling placing holes;

[0012] b) Place the seedling placing tray in a seedling transfer device, and the seedling transfer device is initially in a contracted state, and its external dimensions are equivalent to those of the seedling placing tray;

[0013] c) Drive through a telescopic adjustment mechanism to expand the seedling transfer device from the contracted state outward to the size of the seedling transplanting tray;

[0014] d) After the seedling transfer device is fully expanded, transfer the seedlings from the seedling transfer device to the transplanter in the seedling transplanting tray device through a pushing mechanism, and maintain the original arrangement state of the seedlings;

[0015] e) Lower the seedling transplanting tray to the field working surface to complete the seedling transplanting operation;

[0016] f) After the seedling transfer is completed, return the seedling transfer device to the contracted state to adapt to the transfer operation of the next batch of seedlings.

[0017] Among them, the telescopic adjustment mechanism includes a sliding guide rail, a gear-rack transmission assembly or a folding connecting plate, which is used to drive the seedling transfer device to expand outward synchronously to the size of the seedling transplanting tray to complete the seedling transfer. Further, in step a), the seedlings are arranged well on the seedling placing tray.

[0018] Further, in step b), place the seedling placing tray on the seedling transfer device, remove the bottom plate of the seedling placing tray, and transfer the seedlings to the seedling transfer device. The seedling transfer device extends with the seedlings to the same size as the seedling transplanting tray, and transfers the seedlings to the transplanter in the seedling transplanting tray device.

[0019] Further, in step c), the seedling transplanting tray includes a transplanter structure, and the transplanters are arranged in a row at a predetermined interval.

[0020] Further, in step d), the seedling transplanting tray is lowered through a mechanical lifting device.

[0021] After transplanting the seedlings, the seedling transplanting tray rises to complete a transplanting program.

[0022] Further, after completing a transplanting program, the machine moves forward while the rotary harrow driven by the front wheels tidies up the working surface.

[0023] In the present invention, in the field, the seedlings are placed in the seedling swinging tray according to the pre-planned field planting, the seedlings in the seedling swinging tray are transferred to the seedling transferor, the seedling transferor is extended to the same size as the seedling transplanting tray by a telescopic device, the seedlings in the seedling transferor are transferred to the seedling transplanter on the seedling transplanting tray, the seedling transplanting tray is lowered by pressing the lifting button, the seedling transplanting tray is inserted into the soil, and the seedling transplanting button is pressed again to cause the second motor to pull the moving frame, the movement of the moving frame drives one of the conical plates to rotate, and the seedlings in the seedling transplanter fall, thereby completing the transplanting.

[0024] The beneficial effects of the technical solution provided by the present invention are:

[0025] In view of the problems of the above-mentioned prior art, the present invention proposes a multifunctional seedling tray transplanter for transplanting seedlings, which includes a frame, a seedling tray, a seedling transfer device, a seedling transplanter, and a seedling transplanter. Each module realizes precise mechanical movement and displacement adjustment through technologies such as limit rods, threaded rods, and motor linkage, thereby achieving uniform and continuous seedling arrangement during seedling transfer and transplanting. This technical solution combines the mechanical transfer device and auxiliary transplanting equipment in the existing similar technology, and optimizes the structure.

[0026] The multifunctional seedling tray transplanter of the present invention realizes the automation and standardization of the entire process of seedling placement, transfer and transplanting through modular design and precise control, effectively improving the transplanting efficiency and consistency of seedling spacing. The device not only solves the problems of inconvenient operation and low efficiency of manual transplanting, but also provides a reliable mechanized solution for the accuracy of rice scientific research data.

[0027] The present invention can automatically carry out the rice transplanting work, and at the same time, the arrangement of the rice transplanter in the rice transplanting tray can ensure the spacing between the rice seedlings, effectively improve the efficiency of rice transplanting, automate the rice transplanting process, and at the same time effectively ensure the spacing between the rice seedlings, improve the accuracy of scientific research data, and is suitable for rice scientific research, especially rice seedling transplanting in the rice breeding process.

[0028] The present invention is composed of multiple modules such as a frame, a seedling swinging tray, a seedling transfer device, a seedling transplanting tray and a seedling transplanter, and realizes precise mechanical linkage and position adjustment between various components through the coordinated connection between a limit rod, a threaded rod and multiple motors.

[0029] The present invention achieves a close fit between the seedling swinging tray and the seedling transplanting tray in structure. Through the coordinated movement of the seedling transferor, while ensuring the uniform arrangement of the seedlings, the size matching and movement accuracy in the seedling transfer process are ensured, thereby solving the problems of uneven layout and transfer error in the prior art to a certain extent.

[0030] Through modular design and multi-level linkage control, the present invention realizes the coordinated movement among the frame, the seedling placing tray, the transplanting tray and the transplanter, improves the accuracy of seedling transfer and arrangement, simplifies the structure, and at the same time enhances the overall stability and operability of the equipment, reflecting the remarkable progress of the technical solution in terms of structural rationality and system integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the structural diagram of the device without the seedling placing tray provided by the embodiment of the present invention;

[0032] Figure 2 is the structural diagram of the device with the seedling placing tray provided by the embodiment of the present invention;

[0033] Figure 3 is the structural diagram of the transplanting tray provided by the embodiment of the present invention;

[0034] Figure 4 is the enlarged view at the transplanter provided by the embodiment of the present invention;

[0035] The names of the corresponding reference signs in the drawings are: 1, frame; 2, seedling placing tray; 3, transplanting tray; 4, seedling placing seat; 5, first motor; 6, transplanter; 7, second motor;

[0036] 11, traveling wheels; 12, transplanting opening; 13, limiting rod; 14, push handle; 15, rotary harrow; 21, cutting strip; 22, holding handle; 31, threaded rod; 41, opening; 51, lifting button; 61, conical plate; 62, connecting rod; 63, moving frame; 71, transplanting button; 72, electric telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The present invention will be further described in detail below with reference to the drawings and embodiments:

[0038] As Figure 1 Figure 4 shown, the embodiment of the present invention provides a multi-functional seedling placing tray transplanter for seedling transplanting, which includes a frame 1. Four traveling wheels 11 are connected to the frame 1. A rotary harrow 15 is arranged between the two front traveling wheels 11. A push handle 14 is connected to the rear side of the frame 1. A lifting button 51 and a transplanting button 71 are arranged on the push handle 14. A transplanting opening 12 is arranged at the center of the frame 1. The transplanting opening 12 connects the upper and lower parts of the frame 1. Limiting rods 13 are fixed at the four corner points inside the transplanting opening 12. The limiting rods 13 are slidably connected to the transplanting tray 3 up and down to form a basic seedling tray installation structure.

[0039] The top end of the limit rod 13 is fixedly connected to the seedling swinging base 4. The center of the seedling swinging base 4 is provided with a communicating opening 41. The center of the seedling swinging base 4 is used to place the seedling tray 2. A cutting strip 21 is slidably connected inside the seedling tray 2. The cutting strip 21 penetrates through the right side of the seedling tray 2. Sliding the cutting strip 21 to the left can open the seedling tray 2, and sliding the cutting strip 21 to the right can close the seedling tray 2. The opening and closing of the seedling tray 2 are realized by sliding left and right. The side of the seedling transplanting tray 3 is threadedly connected with a threaded rod 31. The top of the threaded rod 31 penetrates through the seedling swinging base 4 and is connected to the output shaft of the first motor 5. The bottom of the threaded rod 31 is rotatably connected inside the seedling transplanting opening 12; thus, the relative position adjustment of the seedling transplanting tray 3 is realized.

[0040] A number of seedling transplanters 6 are evenly arranged in an array inside the seedling transplanting tray 3. The seedling transplanter 6 includes two conical plates 61, which together form a complete hollow conical structure. Relative movement is realized between the two conical plates 61 through rotational connection. Among them, the left conical plate 61 is fixedly connected to the seedling transplanting tray 3, and the right conical plate 61 is rotatably connected to the moving frame 63 through a connecting rod 62. The right conical plate 61 is rotatably connected with a connecting rod 62. One end of the connecting rod 62 is rotatably connected to one end of the conical plate 61, and the other end is rotatably connected to the moving frame 63. The moving frame 63 is arranged on the upper side of the seedling transplanting tray 3. The moving frame 63 is arranged on the upper side of the seedling transplanting tray 3 and is slidably connected to the seedling transplanting tray 3, providing an adjustment space for the working displacement of the seedling transplanter 6.

[0041] The side of the seedling transplanting tray 3 is connected with a second motor 7. The second motor 7 is connected with an electric telescopic rod 72. The electric telescopic rod 72 is connected with the moving frame 63. By controlling the telescopic movement of the electric telescopic rod 72 through the second motor 7, the movement of the moving frame 63 is controlled. The first motor 5 adjusts the position of the seedling transplanting tray 3 through the output shaft connected to the threaded rod 31; while the second motor 7 cooperates with the electric telescopic rod 72 to control the movement of the moving frame 63, thereby driving the seedling transplanter 6 to complete the adjustment of the operation area. The lifting button 51 and the seedling transplanting button 71 control the first motor 5 and the second motor 7 respectively, realizing the coordinated movement between the mechanical parts.

[0042] On the multi-functional seedling swinging tray transplanter, the walking wheels 11 need to have excellent anti-slip performance to cope with the wet and muddy operation environment of paddy fields. For this reason, a special anti-slip pattern is set on the outer surface of the walking wheels 11, which can provide greater friction when contacting soft soil, reducing the risk of the machine slipping or sinking into the mud. In addition, special anti-slip wheels for paddy fields or detachable anti-slip accessories can also be selected to enhance its traction and passability, ensuring the mobility and stability of the transplanter during field operations.

[0043] During the rice transplanting process of the multi-functional seedling tray transplanter, the operator usually needs to quickly grasp, position, and adjust the cutting 21. To simplify this process, a handle 22 is fixedly connected to the side of the cutting 21, allowing the operator to firmly control the cutting 21 for rice transplanting or transplanting even in wet and slippery conditions where it is inconvenient to bend down. The handle 22 can be further designed into a foldable or telescopic structure to adapt to personnel with different operating habits or physical conditions and play an auxiliary support role during machine maintenance or emergencies.

[0044] In the seedling transfer device of this machine, a fixed guide rail structure is formed by horizontal sliding connection, enabling the seedling transfer device to expand and contract in the transverse direction along the guide rail. This guide rail is usually composed of a chute (or slide rail) on the moving frame 63 and a slider on the seedling tray 3, and adapts to different row spacings, plant spacings, and field widths through smooth sliding. If more precise expansion and contraction control are required, positioning pins or driving mechanisms such as hydraulic / electric push rods can be added to the guide rail structure to achieve automatic fixed-point expansion and contraction and position calibration.

[0045] Based on the above design, the anti-slip pattern of the walking wheels 11 ensures the safe movement of the transplanter in paddy fields; while the horizontal sliding guide rail structure enables the seedling transfer device to expand and contract freely to meet different planting densities. In specific implementations, the sensors and control system of the machine can also be combined to jointly manage the walking speed, transplanting frequency, and the number of seedlings, thus constructing a multi-functional seedling tray transplanter that can not only drive steadily in paddy field environments but also be easy to operate flexibly and meet various planting requirements.

[0046] In this method, first, within a limited working area, there are multiple closely arranged small seedling placement holes on the seedling tray 2, which can accommodate single or a small number of seedlings. The seedlings are neatly arranged on the seedling tray 2 and remain relatively stable in the pre-set spatial position. In this way, when the seedling tray 2 is subsequently placed on the machine, the seedlings can be transferred or unfolded as a whole, thereby reducing the manual operation of handling each seedling one by one and improving the transplanting efficiency.

[0047] The retractable seedling transfer device set on the machine is initially in a retracted state, and its external dimensions are basically the same as those of the seedling tray 2. By placing the seedling tray 2 in the retracted seedling transfer device, the seedling tray 2 and the transfer device can be closely fitted in terms of appearance, ensuring that the seedlings do not shift or fall during the transfer process. Subsequently, the operator or the machine control system will extend the seedling transfer device so that its dimensions are similar to those of the seedling tray 3, facilitating the smooth transfer of the seedlings in the seedling tray 2 to the transplanter 6 in the seedling tray 3 device.

[0048] This method also designs a transplanter structure inside the seedling tray 3, which unfolds and arranges at a predetermined spacing. After the seedlings are transferred to the seedling tray 3, the seedling tray 3 can move vertically on the guide rail or sliding mechanism of the machine until it reaches the predetermined position for field operation. The transplanter 6 then performs the transplanting operation at this position to insert the seedlings into the paddy field or the corresponding soil, thus realizing an automatic or semi-automatic transplanting process.

[0049] When the seedling tray 3 is carrying seedlings, the mechanical lifting device on the machine will slowly lower the seedling tray 3 to the field operation surface to complete the transplanting action; after transplanting, the seedling tray 3 is raised again, marking the end of a transplanting cycle. At the same time, the machine can move forward, and the rotary harrow driven by the front wheels levels or loosens the operation surface where transplanting is about to be carried out, so as to ensure that the subsequent transplanting depth and row spacing are more consistent. Through this set of coordinated processes, the transplanting link can be effectively simplified, and the quality and efficiency of transplanting can be improved.

[0050] The specific implementation process is as follows: First, slide the insert bar 21 to the rightmost side so that the seedling swinging tray 2 is in a state where the upper and lower parts are not connected to place the seedlings. Place the seedlings on the seedling swinging tray 2, and place the seedling swinging tray 2 on the seedling swinging seat 4 to prepare for transplanting work. Move the device to the location where transplanting is to be carried out, pull the insert bar 21 to the left, so that the seedlings in the seedling swinging tray 2 fall into the transplanter 6. Then press the lifting button 51, and the first motor 5 drives the threaded rod 31 to rotate. The rotation of the threaded rod 31 drives the seedling tray 3 to move downward, so that the bottom of the transplanter 6 is inserted into the soil. Then press the transplanting button 71, and the second motor 7 controls the electric telescopic rod 72 to shorten to the left, so that the moving frame 63 moves to the left, driving the connecting rod 62 to rotate. The rotation of the connecting rod 62 drives the right conical plate 61 to rotate. The rotation of the right conical plate 61 causes the transplanter 6 to open, and the seedlings inside the transplanter 6 fall into the soil, thus completing the transplanting. After one transplanting is completed, replace the seedling swinging tray 2 to carry out the next transplanting.

[0051] When operating in the field, the seedling swinging tray 2 is used to evenly arrange the seedlings within a limited operation area. Since the field space is small and the size of the seedling swinging holes is also small, it is designed to increase the number of seedlings placed within a limited area, so as to meet the requirements of close planting.

[0052] The seedling transfer device on the machine is a telescopic structure. When there is no seedling operation, the seedling transfer device is in a contracted state, and its size is equivalent to that of the seedling swinging tray 2, which is convenient for connecting with the field operation equipment; while when transferring seedlings, the device can be extended to a size close to that of the seedling tray 3 to ensure the docking with the seedling tray 3 and the smooth transfer of seedlings.

[0053] The seedlings are arranged in the seedling transplanting tray 3 according to the preset row spacing and plant spacing, so the area it occupies is relatively large and its own weight is relatively high. By using the seedling transfer device on the machine, the seedlings arranged in the seedling placing tray 2 can be transferred as a whole to the seedling transplanting tray 3, thus realizing the transition from intensive placement to uniform distribution and ensuring the accurate arrangement of the seedlings during the transplanting process.

[0054] In actual operation, first, the seedlings are neatly placed in the seedling placing tray 2; then, the seedling placing tray 2 together with the seedlings is placed on the seedling transfer device on the machine, and the seedlings are transferred into the transplanter 6 in the seedling transplanting tray 3 device by means of the bottom plate structure of the seedling placing tray 2.

[0055] After the transfer is completed, the transplanter 6 is lowered to the paddy field plane. The transplanter 6 adopts a structure similar to that of a solar sailboard, which can spread out to cover a large area, ensuring that the seedlings can smoothly fall off from the pointed and round structure at the bottom of the transplanter 6 during the transplanting process, and the transplanting process is completed by lifting through the lifting device.

[0056] This design solution aims at the problem of non-uniform number of seedlings per hill and row and plant spacing caused by operation differences in the artificial rice transplanting experiment. By combining the soil-bearing seedlings in the customized seedling raising machine with the mechanical transfer device, a stable transition of the seedlings is realized during the process of transplanting from the seedling placing tray 2 to the seedling transplanting tray 3 and then to the paddy field, ensuring the consistency of planting parameters such as the number of seedlings per hill, row and plant spacing and the accuracy of experimental data.

[0057] In the present invention, the seedling transfer device, the seedling transplanting tray 3 and the seedling placing tray 2 are different structures, each undertaking a specific function:

[0058] The seedling transfer device: It is a retractable seedling carrying and transferring device. In the initial state, its size is equivalent to that of the seedling placing tray 2, and after extension, its size is the same as that of the seedling transplanting tray 3. Its main function is to transfer the seedlings from the seedling placing tray 2 to the seedling transplanting tray 3.

[0059] The seedling transplanting tray 3: It is the device for carrying and transplanting seedlings for the final field transplanting operation. Its main function is to transplant the seedlings into the field at the preset spacing.

[0060] A slidable bottom plate is provided at the bottom of the seedling placing tray 2. There are a plurality of closely arranged seedling placing holes in the seedling placing tray 2, and its function is to arrange the seedlings in order at the field head.

[0061] The telescopic adjustment process of the seedling transfer device is as follows:

[0062] 1. Initial contraction state: The size of the seedling transfer device is the same as that of the seedling placing tray 2. The seedlings are neatly arranged in the small seedling placing holes of the seedling placing tray 2 and placed on the seedling transfer device.

[0063] 2. Telescopic expansion:

[0064] Mechanical method: A slidable guide rail + rack and pinion transmission mechanism is adopted. Through electric or hydraulic drive, both sides of the seedling transfer device are synchronously expanded outward to the size of the seedling tray 3.

[0065] Folding structure: A foldable connecting plate is adopted and unfolded through a hinge or telescopic rod, so that the seedling placing device extends from the compact mode to the size matching the seedling tray 3.

[0066] 3. Seedling transfer: After the seedling transfer device reaches the same size as the seedling tray 3, the seedlings are smoothly transferred to the transplanter 6 in the seedling tray 3 device through a pushing mechanism (such as a pneumatic push rod or a flexible conveyor belt), and the original arrangement state is maintained.

[0067] 4. Retraction and reset: After the seedling transfer is completed, the seedling transfer device returns to the initial retracted state for the next batch of seedling transfer.

[0068] The seedling placing tray 2 is used to store the seedlings to be transferred and plays a role in preliminary arrangement.

[0069] The seedling transfer device can be telescopically adjusted to enable the seedlings to be transferred from the seedling placing tray 2 in an orderly manner, and its size after expansion is the same as that of the seedling tray 3.

[0070] The seedling tray 3 is the component that finally bears the seedlings and performs field transplanting operations.

[0071] Modular design: The telescopic seedling transfer device can be adapted to different specifications of the seedling placing tray 2 and the seedling tray 3, improving the versatility of the equipment.

[0072] Stability improvement: A synchronous telescopic mechanism is adopted to enable the seedlings to be smoothly transferred, avoiding misalignment or damage to the seedlings.

[0073] Automation integration: It can be combined with an intelligent control system to achieve automatic telescopic adjustment, improve the transplanting efficiency, and reduce manual intervention.

[0074] This solution ensures that the seedlings can move stably and orderly from the seedling placing tray 2 to the seedling tray 3 during the transfer process, optimizes the equipment structure, and improves the automation operation efficiency and reliability.

[0075] The above are only the embodiments of the present invention. Specific technical solutions or common knowledge such as characteristics known in the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A multifunctional seedling tray transplanter for transplanting seedlings, characterized in that: The transplanter comprises: A vehicle frame, to which travel wheels are connected; Limit rods are fixed at the four corners of the frame, and the limit rods are connected to the transplanting tray in a sliding manner up and down; A slidable bottom plate is provided at the bottom of the seedling-swinging tray; The rice transplanter is arranged in an array in the rice transplanter tray according to a preset row spacing and plant spacing, and the rice transplanter includes two conical plates forming a hollow conical structure, and the two conical plates are connected in a rotating connection manner, wherein one conical plate is fixed on the rice transplanter tray, and the other conical plate is rotatably connected to the mobile frame through a connecting rod; a threaded rod is threadedly connected to the side of the rice transplanter tray, a rice transplanter swing seat is passed through the top of the threaded rod and is connected to a first motor, an output shaft of the first motor is connected to the threaded rod, and the first motor is used to control the rotation of the threaded rod; The seedling transfer device is arranged on the upper side of the transplanting tray and is connected to the transplanting tray in a horizontal sliding manner; A second motor is fixedly connected to the side of the transplanting tray, and the second motor is connected to the mobile frame via an electric telescopic rod; A push handle is fixedly connected to the side of the frame, and a lifting button and a transplanting button are arranged on the push handle, which are connected to the first motor and the second motor.

2. The multifunctional seedling tray transplanter according to claim 1, characterized in that: A rotary rake is arranged between the traveling wheels at the front side of the frame.

3. The multifunctional seedling tray transplanter according to claim 1, characterized in that: The outer surface of the walking wheel is provided with an anti-skid pattern for providing additional friction in the slippery environment of the paddy field and preventing the machine from slipping; the side of the cutting strip is fixedly connected with a handle to facilitate the operator to grasp and adjust during transplanting or machine maintenance.

4. The multifunctional seedling tray transplanter according to claim 1, characterized in that: The seedling transferor and the transplanting tray are connected by horizontal sliding to form a fixed guide rail structure, so that the seedling transferor can be extended and retracted in the lateral direction. When extended to the maximum, the seedling loading hole in the seedling transferor and the transplanting tray completely correspond to each other up and down.

5. The multifunctional seedling tray transplanter according to claim 3, characterized in that: The gripping handle adopts a foldable or telescopic structure, and can be adjusted in length or angle according to different operation requirements, thereby improving the flexibility of use and the convenience of storage of the machine.

6. The multifunctional seedling tray transplanter according to claim 1, characterized in that: The output shaft of the first motor and the threaded rod are in a spiral connection structure.

7. A method for transplanting rice seedlings, characterized in that: The method comprises the following steps: a) arranging the seedlings on a seedling swinging tray within a limited working area, wherein the seedling swinging tray has a plurality of small seedling swinging holes; b) placing the seedling swinging tray in a seedling transfer device, wherein the seedling transfer device is initially in a contracted state and has an outer dimension equivalent to that of the seedling swinging tray; c) driving the telescopic adjustment mechanism to expand the rice seedling transfer device outward from a contracted state to a size of a rice seedling transplanting tray; d) After the seedling transfer device is fully unfolded, the seedlings are transferred from the seedling transfer device to the transplanting tray by the pushing mechanism, and the original arrangement of the seedlings is maintained; e) lowering the transplanting tray to the field operation surface to complete the rice seedling transplanting operation; f) After the transfer of the seedlings is completed, the seedling transfer device is restored to the contracted state to adapt to the transfer operation of the next batch of seedlings; Wherein, the telescopic adjustment mechanism includes a sliding guide rail, a gear rack transmission assembly or a folding connecting plate, which is used to drive the seedling transferor to synchronously expand outward to the size of the transplanting tray to complete the seedling transfer.

8. The method for transplanting rice seedlings according to claim 7, characterized in that: In step c), the rice transplanting tray includes a rice transplanter structure, in which a movable rice transplanter is arranged, and the rice transplanters are spread out and arranged along a predetermined spacing.

9. The method for transplanting rice seedlings according to claim 7, characterized in that: In step d), the transplanting tray is lowered by a mechanical lifting device, and after the seedlings are transplanted, the transplanting tray is raised to complete a transplanting process; When a transplanting procedure is completed, the machine moves forward and the rotary harrow driven by the front wheels tidies the working surface.

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