A device for taking up sorghum blanket seedlings

By designing a sorghum seedling picking device, a rotating disk and transmission mechanism are used to ensure that the picking claws vertically grasp the sorghum seedlings, thus solving the problem of sorghum seedling tilting and improving the survival rate and planting depth.

CN224343829UActive Publication Date: 2026-06-12宜宾市农业科学院

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
宜宾市农业科学院
Filing Date
2025-05-12
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The seedling-collecting mechanism of existing sorghum seedling transplanters causes sorghum seedlings to tilt onto the cultivated land during the planting process, affecting the planting depth and reducing the survival rate.

Method used

A sorghum seedling picking device was designed, including a rotating disk, a fixed disk, a support plate, a picking claw, and a transmission mechanism. Through a drive motor and a transmission gear system, the picking claw is ensured to vertically grasp the sorghum seedling during rotation, avoiding tilting. The transmission mechanism transmits power to the picking claw, causing it to rotate on the support plate and reset, ensuring vertical planting.

Benefits of technology

This improved the survival rate of sorghum seedlings, ensured the vertical planting depth of sorghum seedlings, avoided tilting, and enhanced the planting effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224343829U_ABST
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Abstract

The utility model discloses a kind of sorghum blanket seedling taking device, solve the technical problem that the sorghum seedling taken by the taking seedling mechanism on the existing part of transplanting machine is inclined in the planting process in cultivated land, influence sorghum seedling planting depth, lead to the survival rate of sorghum seedling reduces. Including rotating disc and fixed disc arranged on outside transplanting machine, a plurality of circumferential distribution on the taking seedling mechanism of rotating disc, and driving mechanism being connected with taking seedling mechanism and arranged on fixed disc. The utility model takes seedling claw after grabbing sorghum seedling resets, the angle of taking seedling claw after resetting and corresponding support plate is perpendicular, so overall shorten the length of taking seedling mechanism, so that taking seedling mechanism does not touch cultivated land in rotating process, ensure that taking seedling mechanism rotates smoothly, when taking seedling claw rotates to approach cultivated land ground and parallel with horizontal plane with rotating disc, the sorghum seedling grabbed on taking seedling claw is perpendicular to ground, prevent the sorghum seedling from being inclined in cultivated land, ensure the planting depth of sorghum seedling, improve the survival rate of sorghum seedling.
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Description

Technical Field

[0001] This utility model belongs to the field of sorghum planting technology, specifically relating to a sorghum seedling removal device. Background Technology

[0002] Planting sorghum seeds directly in the farmland is problematic because the germination and seedling development process depends on the natural environment and takes a long time, with some seeds failing to germinate. This necessitates replanting later, but the replanted sorghum often grows slower than the initially planted sorghum, resulting in uneven maturity and affecting the quality of the harvest.

[0003] If humidity, temperature, and other conditions are artificially controlled, sorghum seeds can be cultivated into seedlings using seedling trays, and then the seedlings can be transplanted to cultivated land. This saves the time spent planting sorghum seeds directly in the cultivated land and waiting for them to mature. In addition, direct planting of sorghum seedlings avoids the need for replanting, results in more uniform maturity of the sorghum, and thus improves the quality of the harvested sorghum.

[0004] When cultivating sorghum seedlings using seedling trays, the roots of the sorghum seedlings intertwine in the trays to form a "blanket-like" structure, making it easy to cut the seedlings whole during mechanical planting. However, existing blanket-like seedling transplanters have a problem where the individual sorghum seedlings removed from the whole blanket by the seedling-picking mechanism are tilted, causing the sorghum seedlings to lean towards the cultivated land during planting, affecting the planting depth and reducing the survival rate of the sorghum seedlings. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sorghum seedling removal device to solve the technical problem that the sorghum seedlings removed by the seedling removal mechanism on some existing transplanting machines tend to tilt onto the cultivated land during the planting process, affecting the planting depth of the sorghum seedlings and resulting in a reduced survival rate of the sorghum seedlings.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A sorghum seedling picking device includes a rotating disk rotatably mounted on an external transplanter, a fixed disk fixed on the external transplanter and corresponding to the rotating disk, a plurality of seedling picking mechanisms circumferentially distributed on the rotating disk, and a drive mechanism mounted on the fixed disk and connected to the seedling picking mechanisms; the seedling picking mechanism includes a support plate fixed on the rotating disk, seedling picking claws movably mounted on the support plate, and a transmission mechanism mounted on the rotating disk and the support plate and connected between the drive mechanism and the seedling picking claws.

[0008] Furthermore, the drive mechanism includes a first drive motor slidably mounted on a fixed disk, and a first drive gear mounted on the drive shaft of the first drive motor and connected to the transmission mechanism.

[0009] Furthermore, the transmission mechanism includes a transmission gear A movably mounted on the rotating disk and meshing with the first drive gear, a first sprocket movably mounted on the rotating disk and connected to the transmission gear A, a second sprocket movably mounted on the support plate and adapted to the first sprocket, a chain sleeved between the first sprocket and the second sprocket, a transmission gear B movably mounted on the support plate and connected to the second sprocket, and a transmission gear C movably mounted on the support plate and meshing with the transmission gear B; the seed-taking claw is located on the transmission gear C.

[0010] Furthermore, the seedling-taking claw includes a fixed seedling-taking rod fixedly mounted on the transmission gear C, and a movable seedling-taking rod movably mounted on the fixed rod; a seedling-fixing groove is formed between the fixed seedling-taking rod and the movable seedling-taking rod.

[0011] Furthermore, a mounting plate is provided on the fixed seedling taking pole, a support rod is fixedly provided on the mounting plate, a transmission gear is movably passed through the support rod, and the movable seedling taking pole is installed on the transmission gear; a second drive motor is provided on the mounting plate, and a second drive gear meshing with the transmission gear is provided on the drive shaft of the second drive motor.

[0012] Furthermore, a first mounting through hole is provided on the rotating disk, and a first connecting rod is movably inserted through the first mounting through hole. The transmission gear A and the first sprocket are respectively installed at both ends of the first connecting rod and respectively fit against the rotating disk.

[0013] Furthermore, a second mounting through hole is provided on the support plate, and a second connecting rod is movably inserted through the second mounting through hole. The second sprocket and the transmission gear B are respectively installed at both ends of the second connecting rod and respectively fit against the support plate.

[0014] Furthermore, a sliding groove is provided on the fixed plate, and a sliding plate is slidably embedded in the sliding groove. A linear motor connected to the sliding plate is provided on the fixed plate, and a first drive motor is installed on the sliding plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model has a simple structure, a scientific and reasonable design, and is easy to use. The rotating disc rotates when powered by an external transplanter, causing its supporting plate to rotate synchronously. Once the supporting plate rotates close to the sorghum seedlings on the external transplanter and is parallel to the cultivated land, the seedling-grabbing claw on the supporting plate rotates relative to the plate, grabbing the sorghum seedling. After grabbing the seedling, the claw rotates in the opposite direction relative to the supporting plate until it returns to its original position. After returning to its original position, the seedling-grabbing claw is perpendicular to the supporting plate. This shortens the overall length of the seedling-grabbing mechanism, preventing it from touching the cultivated land during rotation. While ensuring smooth rotation, the seedling-grabbing claw, as it rotates with the disc to near the ground and parallel to the horizontal plane, ensures that the sorghum seedlings it grabs are perpendicular to the ground, preventing them from tilting and ensuring the planting depth, thus improving the survival rate of the sorghum seedlings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of the present invention when the rotating disk is rotating.

[0018] Figure 2 This is a schematic diagram of the appearance of the seedling-grabbing claw on the rotating disc of this utility model when it grabs sorghum seedlings.

[0019] Figure 3 This diagram shows the positional relationship between the transmission gear A and the first drive gear on the rotating disk when the rotating disk of this utility model rotates.

[0020] Figure 4 This diagram shows the positional relationship between the transmission gear A and the first drive gear on the rotating disk when the seedling-grabbing claw on the rotating disk of this utility model grabs sorghum seedlings.

[0021] Figure 5 This is a cross-sectional view of the present invention when the seedling-grabbing claw on the rotating disc grabs sorghum seedlings.

[0022] Figure 6 A cross-sectional view of the slide plate being fitted into the groove.

[0023] The names corresponding to the reference numerals in the attached figures are as follows:

[0024] 1-Rotating disc, 2-Fixed disc, 3-Support plate, 4-Seedling claw, 5-Transmission gear A, 6-First sprocket, 7-Second sprocket, 8-Chain, 9-Transmission gear B, 10-Transmission gear C, 11-First drive motor, 12-First drive gear, 13-Slide groove, 14-Slide plate, 15-Linear motor, 16-First mounting through hole, 17-First connecting rod, 18-Second mounting through hole, 19-Second connecting rod, 20-Fixed seedling picking rod, 21-Modible seedling picking rod, 22-Fixed seedling slot, 23-Mounting plate, 24-Support rod, 25-Transmission gear, 26-Second drive motor, 27-Second drive gear. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1-6 As shown, the sorghum seedling removal device provided by this utility model solves the technical problem that the sorghum seedlings removed by the seedling removal mechanism on some existing transplanters tilt onto the cultivated land during the planting process, affecting the planting depth of the sorghum seedlings and resulting in a reduced survival rate of the sorghum seedlings.

[0029] This utility model includes a rotating disk 1 rotatably mounted on an external transplanter, a fixed disk 2 fixedly mounted on the external transplanter and corresponding to the rotating disk 1, a plurality of seedling-taking mechanisms circumferentially distributed on the rotating disk 1, and a drive mechanism mounted on the fixed disk 2 and connected to the seedling-taking mechanisms; the seedling-taking mechanism includes a support plate 3 fixedly mounted on the rotating disk 1, seedling-taking claws 4 movably mounted on the support plate 3, and a transmission mechanism mounted on the rotating disk 1 and the support plate 3 and connected between the drive mechanism and the seedling-taking claws 4.

[0030] This utility model has a simple structure, a scientific and reasonable design, and is easy to use. The rotating disc rotates when powered by an external transplanter, causing its supporting plate to rotate synchronously. Once the supporting plate rotates close to the sorghum seedlings on the external transplanter and is parallel to the cultivated land, the seedling-grabbing claw on the supporting plate rotates relative to the plate, grabbing the sorghum seedling. After grabbing the seedling, the claw rotates in the opposite direction relative to the supporting plate until it returns to its original position. After returning to its original position, the seedling-grabbing claw is perpendicular to the supporting plate. This shortens the overall length of the seedling-grabbing mechanism, preventing it from touching the cultivated land during rotation. While ensuring smooth rotation, the seedling-grabbing claw, as it rotates with the disc to near the ground and parallel to the horizontal plane, ensures that the sorghum seedlings it grabs are perpendicular to the ground, preventing them from tilting and ensuring the planting depth, thus improving the survival rate of the sorghum seedlings.

[0031] The transmission mechanism of this utility model is used to transmit the power output from the drive mechanism to the corresponding seedling-grabbing claw 4, so that the corresponding seedling-grabbing claw 4 rotates relative to the corresponding support plate 3. When the seedling-grabbing claw holding the sorghum seedling rotates with the rotating disc to be close to the ground and parallel to the horizontal plane, the external transplanting machine performs the planting operation on the sorghum seedling held on the seedling-grabbing claw 4. Figure 1-4 The arrow in the image indicates the direction of rotation of the rotating disk.

[0032] The drive mechanism of this utility model includes a first drive motor 11 slidably mounted on a fixed disk 2, and a first drive gear 12 mounted on the drive shaft of the first drive motor 11 and connected to a transmission mechanism. A sliding groove 13 is provided on the fixed disk 2, and a sliding plate 14 is slidably embedded in the sliding groove 13. A linear motor 15 connected to the sliding plate 14 is provided on the fixed disk 2, and the first drive motor 11 is mounted on the sliding plate 14.

[0033] Driven by the linear motor 15, the first drive motor 11 can slide on the fixed plate 2. When the corresponding support plate is rotated by the rotating plate 1 to be close to the sorghum seedlings on the transplanter and parallel to the cultivated land, and when it is necessary to rotate the corresponding seedling picking claw on the support plate, the linear motor 15 drives the first drive motor 11 to slide on the fixed plate 2 until the first drive gear 12 connected to the drive shaft of the first drive motor 11 is connected to the corresponding transmission mechanism. Then, the first drive motor 11 starts, and the drive shaft of the first drive motor 11 drives the first drive gear 12 to rotate. The corresponding transmission mechanism transmits the motion of the first drive gear 12 to the corresponding seedling picking claw 4, so that the corresponding seedling picking claw rotates on the support plate.

[0034] During the use of this utility model, the corresponding transmission mechanism transmits the kinetic energy of the first drive motor 11 to the corresponding seedling claw 4 on the corresponding support plate, causing the seedling claw to rotate on the corresponding support plate until it grabs the sorghum seedling. Then, the drive shaft of the first drive motor 11 rotates in the opposite direction, synchronously driving the first drive gear 12 to rotate in the opposite direction. The corresponding transmission mechanism transmits the kinetic energy of the first drive gear 12 rotating in the opposite direction to the seedling claw 4 that has grabbed the sorghum seedling, causing the seedling claw to rotate in the opposite direction on the corresponding support plate until it resets. Then, the linear motor 15 drives the first drive motor 11 to slide in the opposite direction on the fixed disk 2 until the first drive motor 11 resets on the fixed disk 2, so that the first drive motor 11 can subsequently drive the seedling claw 4 on the rotating disk 1.

[0035] The transmission mechanism includes a transmission gear A5 movably mounted on the rotating disk 1 and meshing with the first drive gear 12, a first sprocket 6 movably mounted on the rotating disk 1 and connected to the transmission gear A5, a second sprocket 7 movably mounted on the support plate 3 and adapted to the first sprocket 6, a chain 8 sleeved between the first sprocket 6 and the second sprocket 7, a transmission gear B9 movably mounted on the support plate 3 and connected to the second sprocket 7, and a transmission gear C10 movably mounted on the support plate 3 and meshing with the transmission gear B9; the seed-taking claw 4 is located on the transmission gear C10.

[0036] When the first drive gear 12, which is connected to the drive shaft of the first drive motor 11, is connected to the corresponding transmission mechanism, the first drive gear 12 meshes with the corresponding transmission gear A5. Then, the first drive motor 11 starts, and the drive shaft of the first drive motor 11 drives the first drive gear 12 to rotate. The first drive gear 12 drives the transmission gear A5 to rotate. The transmission gear A5 synchronously drives the first sprocket 6 to rotate. The first sprocket 6 drives the chain 8 to move between the first sprocket 6 and the second sprocket 7. The chain 8 drives the second sprocket 7 to rotate. The second sprocket 7 drives the transmission gear B9 to rotate. The transmission gear B9 drives the transmission gear C10 to rotate. The transmission gear C10 drives the corresponding seed-picking claw 4 to rotate on the corresponding support plate.

[0037] The rotating disk 1 of this utility model has a first mounting through hole 16, and a first connecting rod 17 is movably inserted through the first mounting through hole 16. The transmission gear A5 and the first sprocket 6 are respectively installed at both ends of the first connecting rod 17 and respectively fit against the rotating disk 1. The transmission gear A5 and the first sprocket 6 are movably mounted on the rotating disk 1 through the first mounting through hole 16 via the first connecting rod 17. This facilitates the transmission of motion between the first drive gear 12 and the transmission gear A5, and between the transmission gear A5 and the first sprocket 6.

[0038] A second mounting through hole 18 is provided on the support plate 3. A second connecting rod 19 is movably inserted through the second mounting through hole 18. The second sprocket 7 and the transmission gear B9 are respectively installed at both ends of the second connecting rod 19 and respectively fit against the support plate 3. The second sprocket 7 and the transmission gear B9 are movably mounted on the support plate 3 through the second mounting through hole 18 via the second connecting rod 19. This facilitates the transmission of motion between the first sprocket 6 and the second sprocket 7, and between the second sprocket 7 and the transmission gear B9.

[0039] The seedling-taking claw 4 of this utility model includes a fixed seedling-taking rod 20 fixedly mounted on a transmission gear C10, and a movable seedling-taking rod 21 movably mounted on the fixed rod 20; a seedling-fixing groove 22 is formed between the fixed seedling-taking rod 20 and the movable seedling-taking rod 21.

[0040] A mounting plate 23 is provided on the fixed seedling taking pole 20, and a support rod 24 is fixedly provided on the mounting plate 23. A transmission gear 25 is movably passed through the support rod 24, and the movable seedling taking pole 21 is installed on the transmission gear 25. A second drive motor 26 is provided on the mounting plate 23, and a second drive gear 27 that meshes with the transmission gear 25 is provided on the drive shaft of the second drive motor 26.

[0041] When the seedling grabbing claw 4 grabs the sorghum seedling, the second drive motor 26 starts, the drive shaft of the second drive motor 26 drives the second drive gear 27 to rotate, the second drive gear 27 drives the transmission gear 25 to rotate, and the transmission gear 25 drives the movable seedling grabbing rod 21 to rotate towards the fixed seedling grabbing rod 20 until the movable seedling grabbing rod 21 touches the fixed seedling grabbing rod 20. At this point, the sorghum seedling is confined to the seedling fixing slot 22 between the fixed seedling grabbing rod 20 and the movable seedling grabbing rod 21. After that, the seedling grabbing claw 4 continues to rotate on the corresponding support plate, and the sorghum seedling fixed in the seedling fixing slot 22 is pulled off the whole sorghum blanket seedling. In this way, the seedling grabbing claw 4 grabs the sorghum seedling.

[0042] The first drive motor 11 and the second drive motor 26 used in this utility model are both forward and reverse servo motors.

[0043] The linear motor 15, the first drive motor 11, and the second drive motor 26 used in this utility model are all existing known electrical devices and can be purchased and used directly on the market. The structure, circuit, and control principle of the linear motor 15, the first drive motor 11, and the second drive motor 26 are all existing known technologies. Therefore, the structure, circuit, and control principle of the linear motor 15, the first drive motor 11, and the second drive motor 26 will not be described in detail here.

[0044] Finally, it should be noted that the above embodiments are merely preferred embodiments of this utility model used to illustrate the technical solutions of this utility model, and are not intended to limit it, nor are they intended to limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. That is to say, any changes or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but whose technical problems are still consistent with those of this utility model, should be included within the protection scope of this utility model. In addition, the direct or indirect application of the technical solutions of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A sorghum seedling collection device, characterized in that, It includes a rotating disc (1) mounted on an external transplanter, a fixed disc (2) mounted on the external transplanter and corresponding to the rotating disc (1), several seedling-taking mechanisms circumferentially distributed on the rotating disc (1), and a drive mechanism mounted on the fixed disc (2) and connected to the seedling-taking mechanisms; the seedling-taking mechanism includes a support plate (3) fixed on the rotating disc (1), a seedling-taking claw (4) movably mounted on the support plate (3), and a transmission mechanism mounted on the rotating disc (1) and the support plate (3) and connected between the drive mechanism and the seedling-taking claw (4).

2. The sorghum seedling collection device according to claim 1, characterized in that, The drive mechanism includes a first drive motor (11) that is slidably mounted on a fixed disk (2), and a first drive gear (12) mounted on the drive shaft of the first drive motor (11) and connected to the transmission mechanism.

3. The sorghum seedling collection device according to claim 2, characterized in that, The transmission mechanism includes a transmission gear A (5) movably mounted on the rotating disk (1) and meshing with the first drive gear (12), a first sprocket (6) movably mounted on the rotating disk (1) and connected to the transmission gear A (5), a second sprocket (7) movably mounted on the support plate (3) and adapted to the first sprocket (6), a chain (8) sleeved between the first sprocket (6) and the second sprocket (7), a transmission gear B (9) movably mounted on the support plate (3) and connected to the second sprocket (7), and a transmission gear C (10) movably mounted on the support plate (3) and meshing with the transmission gear B (9); the seedling claw (4) is located on the transmission gear C (10).

4. The sorghum seedling collection device according to claim 3, characterized in that, The seedling claw (4) includes a fixed seedling rod (20) fixed on the transmission gear C (10) and a movable seedling rod (21) movably mounted on the fixed seedling rod (20); a seedling fixing groove (22) is formed between the fixed seedling rod (20) and the movable seedling rod (21).

5. The sorghum seedling collection device according to claim 4, characterized in that, A mounting plate (23) is provided on the fixed seedling taking pole (20), a support rod (24) is fixed on the mounting plate (23), a transmission gear (25) is movably passed through the support rod (24), and the movable seedling taking pole (21) is installed on the transmission gear (25); a second drive motor (26) is provided on the mounting plate (23), and a second drive gear (27) that meshes with the transmission gear (25) is provided on the drive shaft of the second drive motor (26).

6. The sorghum seedling collection device according to claim 3, characterized in that, A first mounting through hole (16) is provided on the rotating disk (1). A first connecting rod (17) is movably inserted in the first mounting through hole (16). The transmission gear A (5) and the first sprocket (6) are respectively installed at both ends of the first connecting rod (17) and respectively fit against the rotating disk (1).

7. The sorghum seedling collection device according to claim 3, characterized in that, The support plate (3) has a second mounting through hole (18), and a second connecting rod (19) is movably inserted in the second mounting through hole (18). The second sprocket (7) and the transmission gear B (9) are respectively installed at both ends of the second connecting rod (19) and respectively fit against the support plate (3).

8. The sorghum seedling collection device according to claim 2, characterized in that, A sliding groove (13) is provided on the fixed plate (2), and a sliding plate (14) is slidably embedded in the sliding groove (13). A linear motor (15) connected to the sliding plate (14) is provided on the fixed plate (2), and a first drive motor (11) is installed on the sliding plate (14).