Secondary seed guiding mechanism for high speed seed point planter

By introducing a secondary seed-guiding mechanism consisting of a ring clamp and a guide plate into the seeding mechanism, the problems of missed seeding and double seeding in high-speed operations are solved, achieving efficient and precise seeding results.

CN224402182UActive Publication Date: 2026-06-26XINJIANG ACADEMY OF AGRI & RECLAMATION SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
Filing Date
2025-07-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing seeding mechanisms are prone to missed seeding and double seeding when operating at high speeds, which affects the seeding quality and requires sacrificing operational efficiency to ensure the seed filling effect.

Method used

A secondary seed guiding mechanism is adopted, which includes a ring clamp and a guide plate. The guide plate is designed in a radial "spoon" shape, which is divided into radial seed guiding channels. The guide plate is also provided with concave and convex parts to increase the diameter of the seeding roller, reduce the linear speed of the seed picking tray, and extend the seed picking time.

Benefits of technology

While maintaining the sowing speed, the quality of sowing and the precision of operations were improved, ensuring the reliability and accuracy of seed delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of seeding device components, especially a secondary seed guiding mechanism of high-speed seeding point seeding device suitable for cotton, corn or sunflower large-grain seeds, containing annular clamping plate (11) of both sides and the guide plate (12) between annular clamping plate (11), guide plate (12) is the plate that is radially erected between guide plate (12) cross section presents "scoop", and, the guide plate (12) will annular clamping plate (11) between be separated into several curved and be equipped with import and export radial passage.For the utility model can greatly increase the diameter of seeding point seeding cylinder, set more point seeding nozzle on point seeding cylinder, in the same case of seeding speed, can substantially reduce the linear velocity of seed taking tray, prolong seed taking time, ensure the reliability of seed taking, to further improve seeding speed and operation quality.
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Description

Technical Field

[0001] This utility model relates to a seeder component, and more particularly to a secondary seed guiding mechanism for a high-speed seeder suitable for large seeds such as cotton, corn, or sunflower. Background Technology

[0002] Existing seeding mechanisms, especially roller seeders, use a roller assembly to pick up seeds. This assembly consists of a hollow shaft, an air-suction seed tray, a seed distribution tray, and a duckbill seeder. The seed suction tray has evenly distributed suction holes on its surface. The seeds are adsorbed by negative pressure. As the seed suction tray rotates with the roller, the suction holes adsorb the seeds under negative pressure. After reaching the seed unloading area, the air cut-off device cuts off the negative pressure, and the seeds are guided by the seed distribution tray to the duckbill for seeding.

[0003] When the machine operates at high speed, the excessively high linear speed of the seed suction disc often results in insufficient seed filling time and poor seed filling effect, which can easily lead to missed sowing and double sowing, seriously affecting the sowing quality. In order to ensure the sowing quality, it is necessary to sacrifice the operating efficiency, that is, to reduce the sowing speed to ensure seed filling.

[0004] Therefore, a secondary seed guiding mechanism for high-speed seeders, which can effectively improve the seeding speed while ensuring the seeding quality, has emerged. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a secondary seed guiding mechanism for use in a high-speed seeding and seeding device, which can effectively improve the seeding speed while ensuring the seeding quality of the seeding device.

[0006] To achieve the above-mentioned invention objective, the technical solution adopted by this utility model is: including annular clamps (11) on both sides and a guide plate (12) between the annular clamps (11). The guide plate (12) is a plate with a "spoon" shaped cross section that is radially erected between the guide plates (12). Furthermore, the guide plate (12) divides the annular clamps (11) into several curved radial guide channels with inlets and outlets.

[0007] Furthermore, the guide plate (12) mentioned above includes a spoon handle (13) and a spoon head (17). A first recess (14) is provided on the back of the spoon head (17) at the connection between the spoon handle (13) and the spoon head (17), and a second recess (16) is provided on the front.

[0008] Furthermore, the first recess (14) and / or the second recess (16) of the guide plate (12) are preferably provided with a smooth bottom.

[0009] Furthermore, the back of the connection between the spoon handle (13) and the spoon head (17) of the guide plate (12) is preferably provided with a protrusion (15).

[0010] Furthermore, the aforementioned radial seeding channel is preferably composed of several independent individuals. The annular clamp (11) has at least one arc-shaped sheet on one side, and each sheet is provided with at least one guide plate (12) to form an independent individual. Several independent individuals are combined to form a secondary seeding mechanism.

[0011] Furthermore, the inlet of the aforementioned radial seed-guiding channel is provided with a funnel-shaped opening that is larger at the inlet end and smaller at the outlet end on both the left and right sides.

[0012] This invention can significantly increase the diameter of the seeding roller and add more seeding nozzles. Under the same seeding speed, it can greatly reduce the linear speed of the seed-collecting disc, extend the seed-collecting time, ensure the reliability of seed collection, and thus improve the seeding speed and work quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the structure along section A_A.

[0015] Figure 3 This is a schematic diagram of the guide plate in Embodiment 1 of this utility model.

[0016] Figure 4 for Figure 3 A structural diagram viewed from the right.

[0017] Figure 5 This is a schematic diagram of the structure of Embodiment 1 of this utility model applied to a play device.

[0018] Figure 6 for Figure 5 A schematic diagram of the middle limit pressure plate.

[0019] Figure 7 for Figure 5 A schematic diagram of the seed extraction mechanism.

[0020] Figure 8 for Figure 5 A schematic diagram of the structure along section B_B.

[0021] Figure 9 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0022] Figure 10 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0023] The markings in the figure are as follows: 11 ring clamp, 12 guide plate, 13 spoon handle, 14 first recess, 15 protrusion, 16 second recess, 17 spoon head, 21 duckbill, 22 seed tray, 23 seed chamber baffle, 24 seed unloading air-tight plate, 25 limiting pressure plate, 26 seed disturbance device, and 27 belt. Detailed Implementation

[0024] Example 1: Refer to Figures 1 to 8 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0025] The system includes two annular clamping plates 11 on both sides and a guide plate 12 between the annular clamping plates 11. The guide plate 12 is a plate with a "spoon" shaped cross-section that is radially erected between the guide plates 11. Furthermore, the guide plate 12 divides the annular clamping plates 11 into several curved radial channels with inlets and outlets.

[0026] The guide plate 12 includes a spoon handle 13 and a spoon head 17. A first recess 14 is provided on the back of the base of the spoon head 17 at the connection between the spoon handle 13 and the spoon head 17, and a second recess 16 is provided on the front.

[0027] Furthermore, the first recess 14 and the second recess 16 of the guide plate 12 preferably have a smooth bottom, and the back of the connection between the spoon handle 13 and the spoon head 17 of the guide plate 12 is provided with a protrusion 15.

[0028] Furthermore, the inlet of the aforementioned radial seed-guiding channel is provided with a funnel-shaped opening that is larger at the inlet end and smaller at the outlet end on both the left and right sides.

[0029] In specific applications, the secondary seed guiding mechanism of this utility model can be installed between the belt 27 and the seed taking mechanism of the seed chamber to form a seeding mechanism, or it can be installed outside the seed taking mechanism of the seed chamber to form a seed distribution mechanism.

[0030] This embodiment is a seeding mechanism. The secondary seed guiding mechanism is installed between the belt 27 and the seed picking mechanism of the seed chamber. The seed picking mechanism is an air suction mechanism. A seed chamber baffle 23 is provided on one side of the seed chamber of the seed picking tray 22. A seed unloading air-sealing plate 24 is provided on one side of the negative pressure chamber of the seed picking tray 22 to form a seeding area. A seed disturbance device 26 is provided in the seed chamber inside the seed picking tray 22. The seed disturbance device 26 is a protrusion that stands upright on the seed picking tray 22, such as an upright plate or a finger.

[0031] A limiting pressure plate 25 is also provided between the radial seed guiding channel and the seed picking plate 22, which can further extend the radial channel and increase the diameter of the entire seeder.

[0032] The application of this invention allows for an increase in the diameter of the seeder and a relative reduction in the size of the seed tray and negative pressure chamber, thereby significantly reducing the linear velocity of the seed tray. This ensures seed picking accuracy and enables precise sowing. Furthermore, the secondary seed guiding mechanism extends the seed delivery time, ensuring seed transfer quality and increasing sowing speed.

[0033] The working process of this utility model is as follows: During operation, the seed-collecting tray 22 rotates. When passing through the seed-collecting area, the seed-collecting tray picks up the seeds in the seed chamber. After rotating 270 degrees with the seeds, the seed-collecting tray enters the seed-feeding area. Due to the action of the air-sealing plate, the seeds detach from the seed-collecting plate and fall into the radial seed-guiding channel. The seeds first fall into the first recessed part 14. When the seeds continue to rotate with the secondary seed-feeding mechanism and enter the lower right corner area, the seeds fall into the scoop head. The seeds continue to rotate 180 degrees in the secondary seed-feeding mechanism. The seeds fall again into the first recessed part 14 on the back of the scoop head 17 through the second recessed part 16, and then enter the seed-feeding spout, thus completing the seed-collecting process.

[0034] Example 2: Refer to Figure 9 The diagram below is a structural schematic of Embodiment 2 of this utility model. In this embodiment, the radial seeding channel is composed of several independent components. Each independent component consists of two annular clamping plates 11 and one guide plate 12. Several independent components are installed on the belt 27 to form a secondary seeding mechanism.

[0035] Example 3: Reference Figure 10 The diagram below is a structural schematic of Embodiment 3 of this utility model. In this embodiment, each independent individual is composed of one annular clamping plate 11 and one guide plate 12. Several independent individuals are combined and connected to another annular clamping plate 11 to form a secondary seeding mechanism.

[0036] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, various improvements and modifications can be made without departing from the spirit and scope of this utility model, and these should also be considered within the scope of protection of this utility model.

Claims

1. A secondary seed guiding mechanism for a high-speed seeder, characterized in that: Includes annular clamps (11) on both sides and a guide plate (12) between the annular clamps (11). The guide plate (12) is a plate with a "spoon" shaped cross section that is radially erected between the guide plates (12). The guide plate (12) divides the annular clamps (11) into several curved radial guide channels with inlets and outlets.

2. The secondary seed guiding mechanism for a high-speed seeder according to claim 1, characterized in that: The guide plate (12) includes a spoon handle (13) and a spoon head (17). A first recess (14) is provided on the back of the spoon head (17) at the connection between the spoon handle (13) and the spoon head (17), and a second recess (16) is provided on the front.

3. The secondary seed guiding mechanism for a high-speed seeder according to claim 2, characterized in that: The first recess (14) and / or the second recess (16) of the guide plate (12) are provided with a smooth bottom.

4. The secondary seed guiding mechanism for a high-speed seeder according to claim 2 or 3, characterized in that: The back of the connection between the spoon handle (13) and the spoon head (17) of the guide plate (12) is provided with a protrusion (15).

5. The secondary seed guiding mechanism for a high-speed seeder according to claim 1, 2, or 3, characterized in that: The radial seeding channel is composed of several independent individuals. The annular clamp (11) has at least one arc-shaped sheet on one side. Each sheet is provided with at least one guide plate (12) to form an independent individual. Several independent individuals are combined to form a secondary seeding mechanism.

6. The secondary seed guiding mechanism for a high-speed seeder according to claim 4, characterized in that: The radial seeding channel is composed of several independent individuals. The annular clamp (11) has at least one arc-shaped sheet on one side. Each sheet is provided with at least one guide plate (12) to form an independent individual. Several independent individuals are combined to form a secondary seeding mechanism.

7. The secondary seed guiding mechanism for a high-speed seeder according to claim 1, 2, or 3, characterized in that: The radial seed-guiding channel has a funnel-shaped opening at the inlet, with the inlet end larger than the outlet end on both the left and right sides.

8. The secondary seed guiding mechanism for a high-speed seeder according to claim 4, characterized in that: The radial seed-guiding channel has a funnel-shaped opening at the inlet, with the inlet end larger than the outlet end on both the left and right sides.

9. The secondary seed guiding mechanism for a high-speed seeder according to claim 5, characterized in that: The radial seed-guiding channel has a funnel-shaped opening at the inlet, with the inlet end larger than the outlet end on both the left and right sides.

10. The secondary seed guiding mechanism for a high-speed seeder according to claim 6, characterized in that: The radial seed-guiding channel has a funnel-shaped opening at the inlet, with the inlet end larger than the outlet end on both the left and right sides.