Automatic corn replanting device

Abstract

The application discloses a corn automatic reseeding device in the field of agricultural machinery equipment, which comprises a seed guiding pipe, a detection mechanism for monitoring whether the seed guiding pipe is missed seeding, a reseeding mechanism and a controller, a seed box arranged on the outer wall of the seed guiding pipe, an arrangement channel arranged on the seed box and used for limiting multiple corn seeds to be arranged in a single-layer linear arrangement on the same surface, a first driving assembly used for always tightly arranging the corn seeds falling into the arrangement channel in the seed box in the arrangement channel, and a second driving assembly used for driving a single corn seed in a seed arranging cavity to enter the seed guiding pipe. The whole device is compact in structure, high in integration, provided with an independent seed box, does not need to rely on a seed arranging device for seed supply, is flexible in layout, can be directly installed on the seed guiding pipe, and directly pushes the single seed to a reasonable position in the seed guiding pipe, so that the falling path is obviously shortened and the probability of external interference is reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery, and more particularly to an automatic corn replanting device. Background Technology

[0002] Precision seeding technology is one of the important directions for the mechanization of modern maize production. It aims to achieve quantitative, fixed-point, and fixed-depth seeding of maize according to set plant and row spacing, ensuring reasonable planting density and uniform growth, thereby improving yield and resource utilization. With the continuous improvement of maize cultivation agronomic standards and the rapid development of intelligent agricultural machinery technology, field operations have placed higher demands on the precision of maize seeding. However, in actual seeding operations, maize seeding is still prone to problems such as double-seeding and missed seeding due to various factors such as uneven ground, mechanical vibration, changes in operating speed, and insufficient stability of the seed metering device, making it difficult to consistently and stably meet the requirements of precision seeding. Among these, missed seeding is particularly critical and is one of the important factors restricting the effectiveness of precision seeding of maize.

[0003] Missed planting of corn not only wastes land resources but also disrupts plant spacing uniformity, leading to decreased plant density, imbalanced ventilation and light penetration, and reduced nutrient utilization, further affecting corn plant growth and development, and lowering emergence rate and final yield. Relying on manual replanting after missed planting is labor-intensive, inefficient, and costly; moreover, replanting is often delayed, easily missing the optimal growth window, thus exacerbating differences in growth cycles between plants and ultimately affecting the yield and quality of the corn plant population. Therefore, there is an urgent need to integrate a device into corn planters that can monitor and automatically perform replanting operations in real time during operation to improve the uniformity of corn planting and overall operational efficiency.

[0004] Patent publication number CN108200785B discloses an automated missed-seeding detection and replanting device for a corn planter. Its design features a planter and a replanting device arranged sequentially along the planter's travel direction. The device incorporates a photoelectric sensor inside the planter's seed guide tube to detect missed seeding in real time. When a missed seeding is detected, the control system drives a stepper motor on the replanting device to rotate, thereby completing the replanting operation. However, this corn replanting device has certain limitations in its structural design, primarily its large size, restricted installation location, and reliance on the seed metering device's seed box for seed supply, typically limiting its placement to near the seed metering device. During operation, the replanted seeds must be transported to the soil through an independent seed guide tube or the seed metering device's seed guide tube. Because the seed's descent through the seed guide tube is relatively long, its trajectory is easily affected by multiple factors, including planter vibration, the seed guide tube structure, and terrain undulations. Therefore, some seeds will slide smoothly down the tube wall, while others may collide multiple times inside the tube, causing the falling path to deviate and the landing point to deviate from the theoretical position. This results in a decrease in replanting accuracy, or even missed replanting or reseeding, making it difficult to meet the precision requirements of precision seeding for replanting. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is: how to improve the problem of reduced replanting accuracy caused by the large size and limited installation location of the corn replanting device.

[0006] The technical solution adopted by this invention to solve its technical problem is: An automatic corn replanting device includes a seed guide tube equipped with a detection mechanism for monitoring whether seeds have been missed; it also includes a replanting mechanism and a controller, both of which are electrically connected to the controller; the replanting mechanism includes a seed box disposed on the outer wall of the seed guide tube, the seed box having an arrangement channel for limiting multiple corn seeds to be arranged in a single-layer linear pattern on the same surface; it also includes a housing disposed on the seed guide tube, the housing having a seed dispensing cavity adapted for storing single corn seeds, the end of the arrangement channel away from the seed box being connected to the seed dispensing cavity, and an automatic communication structure being provided between the seed dispensing cavity and the seed guide tube; it includes a first driving component disposed on the seed box, the first driving component for ensuring that corn seeds falling from the seed box into the arrangement channel are always tightly arranged in the arrangement channel; it includes a second driving component disposed on the housing, the second driving component for driving single corn seeds in the seed dispensing cavity into the seed guide tube; the first driving component and the second driving component are electrically connected to the controller.

[0007] Furthermore, the aforementioned first driving component includes a partition disposed at the lower part of the seed box, the surface of which is provided with a notch for seed dropping, the notch being suitable for dropping a single corn seed; the partition divides the inner space of the seed box into an upper seed storage chamber and a lower seed guiding chamber, the arrangement channel is disposed in the seed guiding chamber, and an automatic conveying component is disposed in the seed guiding chamber, the notch corresponding to the end of the arrangement channel away from the seed guiding tube; the automatic conveying component continuously operates and drives the corn seeds to lie flat and be arranged closely in the arrangement channel one by one.

[0008] Furthermore, the aforementioned notch is provided on the side of the aforementioned partition, and the aforementioned partition is inclined, with the inclination direction being downward towards the side of the aforementioned notch.

[0009] Furthermore, the aforementioned automatic conveying component includes a motor connected to the bottom of the seed box, the drive shaft of the motor is connected to a coupling, the output end of the coupling passes into the seed box and is connected to a turntable, the turntable is located in the seed guiding cavity, and the upper end of the turntable slides in conjunction with the lower end of the arranged track.

[0010] Furthermore, the aforementioned arrangement channel includes sequentially connected arc segments and straight segments. The opening side of the arc segment corresponds to the position of the aforementioned notch and the other end is connected to the aforementioned straight segment. The straight segment is connected to the aforementioned seeding chamber. The center of the arc segment coincides with the rotation center of the aforementioned turntable.

[0011] Furthermore, the width of the arc segment gradually decreases from the notch position to the straight segment direction, the minimum width of the arc segment is the same as the width of the straight segment, and the width of the straight segment is adapted to the maximum width of the corn seed.

[0012] Furthermore, a baffle is provided in the middle of the aforementioned arrangement channel to isolate excess stacked corn seeds.

[0013] Furthermore, the automatic connection structure includes an automatically resettable sealing door located at the connection position between the seed dispensing chamber and the seed guide tube. The driving end of the second driving component pushes the single corn seed in the seed dispensing chamber to move and abut against the sealing door, so that the sealing door is pushed open and the single corn seed enters the seed guide tube.

[0014] Furthermore, the second drive assembly includes an electric push rod disposed within the housing, and the seed dispensing chamber and the sealing door are sequentially disposed on the drive path of the electric push rod drive end.

[0015] Furthermore, the upper end of the aforementioned seed box is threaded with a cover.

[0016] The beneficial effects of this invention are: When the testing agency detects a missed seed in the seed delivery tube, the corn seeds in the independent seed box are stably arranged in the arrangement channel by the first driving component. The second driving component drives the corn seeds in the seed metering chamber into the seed delivery tube. Under the action of the first driving component, new corn seeds are added to the seed metering chamber, ready for the next replanting. The entire device has a compact structure and high integration. It is equipped with an independent seed box, eliminating the need for a seed metering device for seed supply. It has a flexible layout and can be directly installed on the seed delivery tube. Moreover, each seed is directly pushed to a reasonable position in the seed delivery tube, thereby significantly shortening the falling path, reducing the probability of external interference, effectively improving the accuracy and stability of the corn seed landing point, and achieving precise compensation for missed seeding points. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the replanting device of the present invention; Figure 2 This is a schematic diagram showing the installation position of the replanting device of the present invention; Figure 3 This is a schematic diagram of the vertical cross-section of the box body of the present invention; Figure 4 This is a schematic diagram of the transverse cross-section of the box body of the present invention; Figure 5 This is a schematic diagram of the seed box structure of the present invention; Figure 6 This is a schematic diagram of the transverse cross-section of the seed box of the present invention; Figure 7 This is a flowchart of the process of this invention; The diagram is labeled as follows: 1-Seed box, 2-Cover, 3-Electrode, 4-Coupling, 5-Straight channel, 6-Box, 7-Sealed door, 8-Electric push rod, 9-Detection mechanism, 10-Seed discharge chamber, 11-Circular arc segment, 12-Straight segment, 13-Baffle, 14-Notch, 15-Seed storage chamber, 16-Seed guide chamber, 17-Seed guide tube, 18-Controller. Detailed Implementation

[0018] The invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1-7As shown in the figure, this application proposes an automatic corn replanting device, including a seed guide tube 17, which is equipped with a detection mechanism 9 for monitoring whether the seed guide tube 17 has missed planting; it also includes a replanting mechanism and a controller 18 disposed on the seed guide tube 17, and the replanting mechanism and the detection mechanism 9 are both electrically connected to the controller 18; the replanting mechanism includes a seed box 1 disposed on the outer wall of the seed guide tube 17, the seed box 1 having an arrangement channel for limiting multiple corn seeds to be arranged in a single layer linear pattern on the same surface; it also includes a box body 6 disposed on the seed guide tube 17, the box body 6 having a seed dispensing cavity 10 adapted to store single corn seeds, the end of the arrangement channel away from the seed box 1 being connected to the seed dispensing cavity 10, and an automatic communication structure being provided between the seed dispensing cavity 10 and the seed guide tube 17; and a first driving component disposed on the seed box 1. The first driving component is used to ensure that the corn seeds falling into the arrangement channel in the seed box 1 are always tightly arranged in the arrangement channel; it includes a second driving component disposed in the box body 6, which is used to drive the single corn seed in the seed dispensing chamber 10 into the seed guide tube 17; the first driving component and the second driving component are electrically connected to the controller 18; the automatic connection structure is used to automatically connect the seed dispensing chamber 10 and the seed guide tube 17 when the second driving component drives the corn seeds in the seed dispensing chamber 10 during the replanting process, ensuring that the corn seeds fall stably into the seed guide tube 17; the entire automatic corn replanting device can be set at a preset position on the seed guide tube 17, generally set at a position close to the seed outlet on the seed guide tube 17, ensuring that the replanting path is shortened; moreover, the size of the arrangement channel is adapted to single-seed single-row seeds, making the structure of the entire mechanism smaller, with fewer overall parts, and occupying less space.

[0020] First, it should be stated that when the detection agency 9 detects a missed seed in the seed guide tube 17, the corn seeds in the independent seed box 1 are stably arranged in the arrangement channel by the first drive component. The automatic connection structure opens and the second drive component drives the corn seeds in the seed metering chamber 10 into the seed guide tube 17. Under the action of the first drive, new corn seeds are added into the seed metering chamber 10, waiting for the next replanting. The entire device has a compact structure and high integration. It is equipped with an independent seed box 1, which does not rely on a seed metering device for seed supply. The layout is flexible and can be directly installed on the seed guide tube 17. Moreover, a single seed is directly pushed to a reasonable position in the seed guide tube 17, thereby significantly shortening the falling path, reducing the probability of external interference, effectively improving the accuracy and stability of the corn seed landing point, and achieving precise compensation for missed seeding points.

[0021] The aforementioned controller 18 includes an existing reseeding detection and control system, which is electrically connected to the detection mechanism 9, the first drive component, and the second drive component via lead-out electronic circuits. During operation, the controller 18 first activates the first drive component, which tightly arranges the corn seeds into the arrangement channel, ensuring stable storage of individual corn seeds within the seed dispensing chamber 10. When the detection mechanism 9 detects a missed seeding in the seed guide tube 17, it sends feedback information to the controller 18. The controller 18 then controls the second drive component to drive the individual corn seeds from the seed dispensing chamber 10 into the seed guide tube 17, achieving precise reseeding. The detection mechanism 9 also includes an existing missed seeding detection sensor, which is installed 5 meters below the opening of the seed guide tube 17. At a distance of cm, a seed-passing detection sensor is used to detect whether seeds have passed through the seed-guiding channel. The missed seed detection sensor is fixed to the outer wall of the seed-guiding tube 171 via a bracket. The sensing area of ​​the missed seed detection sensor coincides with the effective channel cross-section of the seed-guiding tube 171 in its detection section, ensuring that any corn seeds passing through this section are within the sensing range and there is no blind spot. When a seed passes through, the missed seed detection sensor generates a detection signal and transmits it to the controller 18. The controller 18 determines whether the seeding status is normal based on the received signal. If no corresponding signal is detected within the preset seeding cycle, it is determined to be a missed seeding event.

[0022] The seed box 1 is threadedly connected to a cover 2 at its upper end. The inner wall of the cover 2 is provided with a threaded structure, which can be detachably and fixedly connected to the opening at the upper end of the seed box 1 by threading. This threaded connection not only has good sealing performance, but also effectively prevents loosening caused by mechanical vibration or external impact during operation, thereby preventing corn seeds from overflowing from the seed box 1.

[0023] The first driving component can be an electric propulsion structure that can push the corn seeds in the seed box 1 one by one into the arrangement channel, ensuring that the corn seeds in the arrangement channel are always tightly arranged in a single row and layer, and that there are always single corn seeds in the seed dispensing cavity 10. When the seeds in the seed dispensing cavity 10 fall into the seed guide tube 17 under the driving action of the second driving component, the corn seeds in the arrangement channel are shifted one corn seed position towards the seed dispensing cavity 10 under the action of the first driving component, so that single corn seeds are added to the seed dispensing cavity 10. The second driving component can be a push rod or a gripping arm that can ensure that the single corn seeds in the seed dispensing cavity 10 are stably discharged into the seed guide tube 17.

[0024] The dimensions of the aforementioned independent seed box 1 can be set according to the actual dimensions of the seeder, ensuring that the surrounding space of the seed guide tube 17 of the seeder can accommodate the installation of the entire replanting structure. Furthermore, the entire replanting structure is installed at the lower part of the seed guide tube 17, ensuring that the replanted corn seeds fall directly into the seed guide tube 17 near the lower seed outlet. This avoids the problem that the corn seeds fall for a long time in the seed guide tube 17 after replanting, and their trajectory is easily affected by multiple factors such as seeder vibration, the structure of the seed guide tube 17, and terrain undulations, thereby improving the accuracy of replanting.

[0025] Specifically, in this embodiment, the first driving component includes a partition disposed at the lower part of the seed box 1. The partition is 5 mm thick and has a notch 14 on its surface for dropping seeds. The notch 14 is suitable for dropping single corn seeds. The partition divides the inner space of the seed box 1 into an upper seed storage chamber 15 and a lower seed guiding chamber 16. The arrangement channel is disposed in the seed guiding chamber 16, and an automatic conveying component is disposed in the seed guiding chamber 16. The notch 14 corresponds to the end of the arrangement channel away from the seed guiding tube 17. The automatic conveying component operates continuously and drives the corn seeds to lie flat and adhere tightly to each other. Arranged in the arrangement channel; that is, in this embodiment, a cylindrical seed box 1 is provided, the partition is disc-shaped, and the seed storage cavity 15 in the seed box 1 is used to store corn seeds that need to be replanted. When the seeder is working, vibration occurs, and the seeds in the seed storage cavity 15 fall from the notch 14 into the seed guide cavity 16. Under the action of the automatic conveyor, the corn seeds that fall into the seed guide cavity 16 are arranged in the arrangement channel. The upper end of the turntable can be set to a rough surface or a friction layer to ensure that the corn seeds do not slide relative to each other on the upper end of the turntable.

[0026] Specifically, the arrangement channel is composed of multiple vertical plates located at the lower end of the partition. The vertical plates isolate the seed guide cavity 16 into the arrangement channel, and there is a small gap between the vertical plates and the turntable to avoid affecting the rotation of the turntable. The notch 14 of the partition is specifically designed as a truncated fan-shaped hole with a central angle of 60° to improve the stability of the seeds falling into the seed guide cavity 16.

[0027] In practical work, the corn seeds in the seed storage chamber 15 may not be able to fall stably from the notch 14 into the seed guide chamber 16 under vibration conditions. To solve the above problem, the notch 14 is set on the side of the partition, and the partition is inclined, with the inclination direction being downward towards the notch 14. In this embodiment, the inclination angle is set to 7.13° to ensure that the corn seeds in the seed storage chamber 15 can be stably gathered at the notch 14 under the action of gravity, and the seeds can be stably dropped, thereby realizing automatic replenishment of the lower chamber. The continuity and stability of the filling process can be guaranteed without additional power.

[0028] The aforementioned automatic conveying component, which can be a conveyor belt or conveyor roller, can transport corn seeds falling from the notch 14 to the arrangement channel into the arrangement channel. In a preferred embodiment, to simplify the structure and reduce the overall size, the automatic conveying component includes a motor connected to the bottom of the seed box 1. The drive shaft of the motor is connected to a coupling 4. The output end of the coupling 4 passes through the seed box 1 and is connected to a turntable. The turntable is located in the seed guiding cavity 16, and the upper end of the turntable slides in conjunction with the lower end of the arrangement track. That is, the corn seeds on the turntable are conveyed to the arrangement channel and force is applied by rotating the turntable. Moreover, the rotating conveying structure occupies less space and the drive structure is relatively simple. Specifically, the turntable has a hexagonal slot in the center, and the output shaft of the coupling 4 is adapted to engage it. During operation, the controller 18 controls the motor to run at low speed. The motor drives the output shaft through the coupling 4, thereby driving the replanting disc to rotate slowly.

[0029] Correspondingly, the aforementioned arrangement channel includes a circular arc segment 11 and a straight segment 12 connected in sequence. The opening side of the circular arc segment 11 corresponds to the position of the notch 14, and the other end connects to the straight segment 12. The straight segment 12 connects to the seed dispensing chamber 10. The center of the circular arc segment 11 coincides with the rotation center of the turntable. That is, under the rotational conveying action of the turntable, corn seeds falling from the notch 14 to the entrance position of the circular arc segment 11 enter the circular arc segment 11. Under the action of the turntable, the corn seeds continuously enter the straight segment 12 along the circular arc segment 11, thereby achieving a stable arrangement of seeds in the arrangement channel. The inner wall of the circular arc segment 11 is provided with a serrated structure to increase the disturbance of the seeds and prevent local accumulation.

[0030] The width of the arc segment 11 and the straight segment 12 is adapted to the maximum width of the corn seed. In this embodiment, the size is selected as 14mm, which is the average maximum width of the corn seed, to ensure that the individual seeds are arranged linearly. However, in actual work, the corn seed falling from the gap 14 to the entrance of the arc segment 11 may get stuck at the entrance. To avoid the above problem, the width of the arc segment 11 gradually decreases from the position of the gap 14 to the direction of the straight segment 12. The minimum width of the arc segment 11 is the same as the width of the straight segment 12, and the width of the straight segment 12 is adapted to the maximum width of the corn seed, to ensure that the corn seed enters the arc segment 11 first, and then the width gradually tightens, so that the individual seeds are stably arranged in the straight segment 12.

[0031] Furthermore, to prevent vertical stacking of the linearly arranged seeds, a baffle 13 is provided in the middle of the arrangement channel. The baffle 13 is used to isolate the stacked excess corn seeds. Specifically, the baffle 13 is located at the lower end of the partition. The gap between the lower end of the baffle 13 and the upper end of the turntable is adapted to the thickness of the corn seeds. This ensures that when the corn seeds pass through the position of the baffle 13, if there is any stacking at the top of a single flat corn seed, the baffle 13 will block the stacked corn seeds from the outside. This ensures that the corn seeds arranged in the arrangement channel extending to the seed dispensing chamber 10 are all single seeds that are tightly connected end to end, improving the accuracy of replanting.

[0032] Furthermore, in this embodiment, the baffle 13 is set at the connection between the arc segment 11 and the straight segment 12, ensuring that the corn seeds arranged in the straight segment 12 will not be stacked. Moreover, under the continuous vibration of the seeder, the corn seeds will not stand up. Under vibration, the corn seeds that stand up will also enter the arrangement channel in a flat state.

[0033] For the straight segment 12, in this embodiment, a sealed straight channel 5 is provided between the lower part of the seed box 1 and the box body 6. The straight channel 5 connects the seed box 1 and the box body 6. The position of the arc segment 11 corresponds to the position of the disc. The straight channel 5 is the straight segment 12. The seed dispensing cavity 10 is set inside the box, and its position corresponds to the end position of the straight segment 12. The seed dispensing cavity 10 is closed relative to the opposite side of the straight segment 12. The corn seeds in the seed dispensing cavity 10 abut against the opposite side wall of the seed dispensing cavity 10 relative to the straight segment 12. The side of the seed dispensing cavity 10 away from the seed guide tube 17 corresponds to the driving end of the second driving component.

[0034] The aforementioned automatic connection structure can be an electrically or pneumatically driven automatic valve. In the non-replanting state, it remains closed to ensure stable storage of corn seeds in the seed dispensing chamber 10. When replanting is required, the controller 18 simultaneously drives the automatic connection structure to open while controlling the second drive component, thus connecting the seed dispensing chamber 10 and the seed guide tube 17. Furthermore, to simplify the structure, the automatic connection structure includes an automatically resettable sealing door 7 located at the connection point between the seed dispensing chamber 10 and the seed guide tube 17. The drive end of the second drive component pushes a single corn seed in the seed dispensing chamber 10 to move and abut against the sealing door 7, causing the sealing door 7 to open and allowing the single corn seed to enter the seed guide tube 17. The sealing door 7 can be a spring-reset structure or a gravity-sealed door structure. For structural simplification, this embodiment... In this example, the upper end of the sealing door 7 is rotatably connected to the upper side of the connection between the seed dispensing chamber 10 and the seed guide tube 17. Under the action of gravity, the sealing door 7 remains sealed and closed under normal conditions. When replanting is required, the driving end of the second driving component pushes the corn seeds toward the sealing door 7 and abuts against the sealing door 7 to open toward the seed guide tube 17, so that the seeds fall stably into the seed guide tube 17. The driving end of the second driving component retracts the sealing door 7 and closes it again when it loses its force, so that the seed dispensing chamber 10 is sealed again. The sealing door 7 has a certain weight and will not open arbitrarily under vibration, ensuring that when no replanting is needed, the corn seeds in the replanting chamber will not shift in position or accidentally fall into the seed guide tube 17. In another embodiment, the sealing door 7 is equipped with a spring hinge structure, which realizes the position reset effect.

[0035] The second driving component includes an electric push rod 8 disposed within the housing 6. The seed dispensing chamber 10 and the sealing door 7 are sequentially arranged on the driving path of the driving end of the electric push rod 8. The electric push rod 8 is electrically connected to the controller 18. After receiving a seed leakage signal detected by the detection mechanism 9, the controller 18 controls the driving end of the electric push rod 8 to push the corn seeds in the seed dispensing chamber 10 into the seed guide tube 17. The electric push rod 8 is fixed inside the housing 6 with bolts to ensure that its installation position does not change arbitrarily during operation, thus ensuring the stability of reseeding.

[0036] During operation, the controller 18 controls the motor to rotate continuously. Under the action of vibration, the corn seeds in the seed storage chamber 15 fall to the top of the turntable one by one. The turntable drives the falling corn seeds to enter the straight section 12 from the arc section 11 in sequence, so that the individual corn seeds are arranged in a linear pattern and are closely attached to each other, ensuring that the seed dispensing chamber 10 stores individual corn seeds.

[0037] When the detection mechanism 9 detects a seed leakage in the seed guide tube 17, the controller 18 receives the signal and controls the electric push rod 8 to push the corn seeds in the seed discharge chamber 10 through the sealing door 7 into the seed guide tube 17, so that the supplemented corn seeds are integrated into the normal seed discharge flow, thus realizing the supplementary planting process.

[0038] In summary, this invention proposes an automatic corn replanting device. The seed box 1 features an integrated design with an upper chamber for seed storage and a lower chamber for sorting. Combined with the tilting of the partition and vibration, seeds are systematically and individually replenished to the replanting position. An electric push rod 8 directly pushes individual corn seeds into the lower part of the seed guide tube 17. This device offers high replanting accuracy, minimal susceptibility to external interference, and simple control. Compared to existing replanting devices, the proposed device has a simple and compact structure with high integration, effectively overcoming the problem of limited installation space. It can be directly placed in the lower part of the seed guide tube 17, and the electric push rod 8 directly pushes the seeds into the lower part of the seed guide tube 17, allowing the seeds to enter the soil via a shorter path. This significantly reduces trajectory uncertainty during the descent process and external interference caused by mechanical vibration, terrain undulations, etc., thereby improving the accuracy of the replanting operation.

Claims

1. An automatic corn replanting device, comprising a seed guide tube (17), wherein the seed guide tube (17) is provided with a detection mechanism (9) for monitoring whether the seed guide tube (17) has missed planting; further comprising a replanting mechanism and a controller (18) disposed on the seed guide tube (17), wherein the detection mechanism (9) and the replanting mechanism are both electrically connected to the controller (18); characterized in that, The replanting mechanism includes a seed box (1) disposed on the outer wall of the seed guide tube (17), the seed box (1) having an arrangement channel for limiting multiple corn seeds to be arranged in a single-layer linear pattern on the same surface; it also includes a box body (6) disposed on the seed guide tube (17), the box body (6) having a seed discharge cavity (10) adapted to the storage of a single corn seed, the end of the arrangement channel away from the seed box (1) being connected to the seed discharge cavity (10), and an automatic communication structure being provided between the seed discharge cavity (10) and the seed guide tube (17); Includes a first drive assembly disposed in the seed box (1), the first drive assembly being used to keep the corn seeds falling into the arrangement channel in the seed box (1) always tightly arranged in the arrangement channel; The device includes a second drive assembly disposed in the housing (6), which is used to drive a single corn seed in the seed dispensing chamber (10) into the seed guide tube (17); the first drive assembly and the second drive assembly are electrically connected to the controller (18); The first driving component includes a partition disposed at the lower part of the seed box (1), the surface of which is provided with a notch (14) for seed dropping, the notch (14) being suitable for single corn seeds to drop; the partition divides the inner space of the seed box (1) into an upper seed storage chamber (15) and a lower seed guiding chamber (16), the arrangement channel is disposed in the seed guiding chamber (16), the seed guiding chamber (16) is provided with an automatic conveying component, the notch (14) corresponding to the end of the arrangement channel away from the seed guiding tube (17); the automatic conveying component continuously operates and drives the corn seeds to lie flat and be arranged closely in the arrangement channel one by one; the automatic conveying component... The component includes a motor connected to the bottom of the seed box (1), the drive shaft of the motor is connected to a coupling (4), the output end of the coupling (4) passes into the seed box (1) and is connected to a turntable, the turntable is located in the seed guiding cavity (16), and the upper end of the turntable is slidably engaged with the lower end of the arrangement channel; the arrangement channel includes an arc segment (11) and a straight segment (12) connected in sequence, the opening side of the arc segment (11) corresponds to the position of the notch (14) and the other end is connected to the straight segment (12), the straight segment (12) is connected to the seed grading cavity (10), and the center of the arc segment (11) coincides with the rotation center of the turntable.

2. The automatic corn replanting device according to claim 1, characterized in that, The notch (14) is provided on the side of the partition, and the partition is inclined, with the inclination direction being downward towards the notch (14).

3. The automatic corn replanting device according to claim 1, characterized in that, The width of the arc segment (11) gradually decreases from the position of the notch (14) to the direction of the straight segment (12). The minimum width of the arc segment (11) is the same as the width of the straight segment (12), and the width of the straight segment (12) is adapted to the maximum width of the corn seed.

4. The automatic corn replanting device according to claim 1, characterized in that, A baffle (13) is provided in the middle of the arrangement channel, which is used to isolate the stacked excess corn seeds.

5. The automatic corn replanting device according to claim 1, characterized in that, The automatic connection structure includes an automatically resettable sealing door (7) located at the connection position between the seed dispensing chamber (10) and the seed guide tube (17). The driving end of the second driving component pushes the single corn seed in the seed dispensing chamber (10) to move and abut against the sealing door (7), so that the sealing door (7) is pushed open and the single corn seed enters the seed guide tube (17).

6. The automatic corn replanting device according to claim 5, characterized in that, The second drive assembly includes an electric push rod (8) disposed inside the housing (6), and the seed dispensing chamber (10) and the sealing door (7) are sequentially disposed on the drive path of the drive end of the electric push rod (8).

7. The automatic corn replanting device according to claim 1, characterized in that, The seed box (1) is threadedly connected to a cover (2) at its upper end.

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