Seed taking apparatus

Abstract

The technical scheme of the present application provides a seed taking device, comprising: a cavity, the cavity is used for containing seeds; a rotating disc, the rotating disc forms part of the wall surface of the cavity; at least one negative pressure hole is formed on the rotating disc; in the rotating process of the rotating disc, the negative pressure hole adsorbs seeds in the cavity and carries the seeds to the outside of the cavity. The seed taking device realizes single-grain cycle taking of seeds through the cavity 2 cooperating with the rotating disc provided with the negative pressure hole, has simple structure and reliable work, and can realize automatic continuous single-grain taking. Through cooperation of the rear assembly, the automatic batch single-grain cutting function can be realized.

Description

Technical Field

[0001] This application relates to the field of seed processing equipment technology, specifically to a seed extraction device. Background Technology

[0002] Currently, seed slicing technology and molecular-assisted breeding technology allow for micro-sampling of seeds before sowing to complete genotypic selection, significantly improving breeding efficiency and scale. The seeds of rice, wheat, corn, and soybean exhibit significant differences in appearance and size, ranging from 1.5mm to 17mm, and their dry seeds are highly hard; for example, the hardness index of hard wheat can reach over 60. To achieve automation, ensure accurate slicing while effectively protecting seed viability, improve cutting efficiency, and achieve breakthroughs in the domestic production and applicability of core cutting technologies are urgent requirements for seed industry safety and industrialization. With the expansion of breeding scale, the sampling efficiency and quality for molecular detection have become technical bottlenecks in molecular-assisted breeding.

[0003] Monsanto and Pioneer Hi-Bred companies in the United States have announced seed slicing technology and laser-assisted seed selection technology for precise cutting of corn kernels using lasers or mechanical blades. However, this method is only suitable for large corn kernels of similar shape and has drawbacks such as the tendency to damage sampled seeds (germination rate 75%). Laser cutting has advantages such as non-contact and zero pollution, but it also has limitations such as limited cutting efficiency. Mechanical cutting has the disadvantages of single-kernel grasping and cutting one kernel at a time, resulting in cutting efficiency and quality that cannot meet the requirements of use.

[0004] In the wheat breeding process described above, wheat seeds need to be processed, such as cutting. For large-scale operations, manual operation is not feasible, necessitating the development of automated wheat seed cutting equipment. To improve efficiency, such equipment may also need to be throughput-oriented, meaning it can run multiple cutting operations simultaneously. The prerequisite for this cutting process is the reliable acquisition and separation of individual wheat seeds. Utility Model Content

[0005] In view of this, this application provides a seed extraction device.

[0006] This application provides a seed extraction device, comprising: A container, used to hold seeds; A turntable forms part of the wall of the cavity; at least one negative pressure hole is provided on the turntable; During the rotation of the turntable, the negative pressure hole adsorbs seeds inside the cavity and carries them to the outside of the cavity.

[0007] Preferably, the negative pressure hole extends from the inside of the cavity through the opening of the cavity to the outside of the cavity, and then returns to the inside of the cavity through the wall joint of the cavity.

[0008] Preferably, it further includes a feeding assembly located outside the cavity and along the path of the negative pressure hole.

[0009] Preferably, the fixed wall surface of the cavity serves as the feeding assembly.

[0010] Preferably, a receiving device is provided below the feeding assembly to receive the single seed that has been fed.

[0011] Preferably, the turntable has a detachable insert on which the negative pressure hole is formed.

[0012] Preferably, the turntable has a negative pressure chamber on the other side of the cavity, and the negative pressure hole communicates with the negative pressure chamber; when the turntable rotates, the negative pressure chamber is maintained at a negative pressure.

[0013] Preferably, the turntable is further provided with a pusher assembly at the bottom position of the cavity, and the pusher assembly is provided with a negative pressure hole in the circumferential direction of the turntable.

[0014] Preferably, the cavity is further provided with a material distribution component, which is offset from the path of the negative pressure hole by a preset distance, and the material distribution component removes excess seeds adsorbed on the negative pressure hole.

[0015] Preferably, a vibration component is provided on the fixed wall surface of the cavity, and the vibration applied by the vibration component causes the seeds in the cavity to continuously accumulate at the bottom of the cavity.

[0016] The seed extraction device of this application uses a cavity 2 in conjunction with a rotating turntable equipped with a negative pressure hole to achieve single-seed recycling. Its structure is simple and reliable, enabling automated continuous single-seed extraction. With the assistance of subsequent components, automated batch single-seed cutting can be achieved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the seed extraction device of this application; Figure 2 This is a schematic diagram of the structure of the turntable 11 of the seed-collecting device of this application; Figure 3 This is a schematic diagram of the pusher assembly 114 of the seed-collecting device of this application; Figure 4 This is a schematic diagram of another embodiment of the seed extraction device of this application.

[0018] In the picture: 1: Seed picking device; 11: Turntable; 111: Negative pressure hole; 112: Insert; 113: Negative pressure chamber; 114: Pushing component; 115: Clearance hole; 116: Fixed wall; 12: Dispensing component; 13: Dividing component; 14: Receiving device; 15: Vibration component; 2: Cavity. Detailed Implementation

[0019] The technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. In this specification, the dimensions of the drawings do not represent the actual size ratio. The drawings are only used to illustrate the relative positional relationship and connection relationship between the components. Components with the same name or the same reference numeral represent similar or the same structure, and are limited to illustrative purposes.

[0020] Figure 1 This is a schematic diagram of the seed extraction device of this application. This type of seed extraction device can be applied not only to wheat seed extraction but also to the separation and extraction of other plant seeds with similar weight and size to wheat seeds, such as rice seeds. The seed extraction device 1 has a cavity 2 for holding seeds and a turntable 11, which forms part of the wall of the cavity 2. At least one negative pressure hole 111 is provided on the turntable 11. A feeding assembly 12 is provided on the outside of the cavity 2. During the rotation of the turntable 11, any one of the negative pressure holes 111 periodically switches between inside and outside the cavity 2. Due to the negative pressure, the negative pressure hole 111 adsorbs seeds inside the cavity 2 and carries them to the outside of the cavity 2. The feeding component 12 is located on the path of the negative pressure hole 111 outside the cavity 2. The seeds fall from the turntable 11 under the obstruction of the feeding component 12. Therefore, the feeding component 12 only realizes the falling of the seeds, but does not need to perform feeding action. In fact, the relative motion caused by the rotation of the turntable 11 is sufficient.

[0021] for example Figure 1 In this embodiment, the cavity 2 is funnel-shaped, and the turntable 11 is a disc. A portion of the turntable 11 forms part of the wall of the cavity 2, and the rotation direction of the turntable 11 is specific. This rotation direction is defined such that the negative pressure hole 111 on the turntable 11 always travels from the inside of the cavity 2 through the opening of the cavity 2 to the outside of the cavity 2, and then returns to the inside of the cavity 2 through the joint of the wall of the cavity 2. This arrangement is to ensure that the process of seeds traveling from the inside of the cavity 2 to the outside of the cavity 2 is not obstructed. In other embodiments, the direction of the turntable 11 may not be specified, but it is always necessary to have a similar orientation on the cavity 2. Figure 1 The opening in the embodiment provides a channel for the seed to move from inside the cavity 2 to the outside of the cavity 2.

[0022] exist Figure 1In this embodiment, the seed-dispensing component 12 is not an independent component; it can be a fixed wall surface of the cavity 2. During the process of the negative pressure hole 111 returning to the cavity 2, the seed contacts the fixed wall surface and falls outside the cavity 2. Generally, by setting the aperture of the negative pressure hole 111 to a reasonable size for a specific crop seed, it can be basically ensured that the negative pressure hole 111 adsorbs a single crop seed at a time. Of course, we do not rule out setting an independent seed-dispensing component 12 at the passage of the negative pressure hole 111 outside the cavity 2 to achieve the function of dispensing the seed. The seed-dispensing component 12 is usually stationary relative to the cavity 2, but it can also be movable relative to the cavity 2, such as swinging or rotating to achieve the literal dispensing function. Typically, a receiving device 14 is set below the seed-dispensing component 12 to receive the fallen single seed.

[0023] like Figure 2 An important aspect of this embodiment is adapting the negative pressure hole 111 to diverse seed extraction needs, such as extracting seeds from different crops. For this purpose, the turntable 11 can have a detachable insert 112, with the negative pressure hole 111 formed on the insert 112. Different inserts 112 can have different negative pressure hole 111 sizes depending on the corresponding seed size / weight. Thus, different inserts 112 can be adaptively replaced to meet different crop seed extraction needs. The insert 112 can be actually fixed to the turntable 11 by threaded connection or snap-fit, and preferably, after fixing, the joint should be airtight.

[0024] To maintain negative pressure in the negative pressure orifice 111 during rotation of the turntable 11, the turntable 11 is typically driven to rotate by a drive assembly. On the opposite side of the turntable 11 from the cavity 2, there is a negative pressure chamber 113 connected to a negative pressure source, and the negative pressure orifice 111 leads to this chamber. The turntable 11 can maintain negative pressure during rotation using flexible components between itself and the negative pressure chamber 113, such as gaskets or sealing rings. Appropriate leakage at the dynamic seal formed by the gasket or similar component is permissible as long as a preset range of negative pressure can be maintained.

[0025] Generally, such as Figure 1 and Figure 3 As shown, a pusher assembly 114 is also provided on the turntable 11 at the bottom position corresponding to the cavity 2. The pusher assembly 114 is basically set in the circumferential direction of the turntable 11 corresponding to the negative pressure hole 111. That is, its circumferential position is basically the same as the position of the negative pressure hole 111. For example... Figure 1In this embodiment, the two components are in the same circumferential position, differing only slightly in radial position. This distance is generally smaller than the size of a single seed. Furthermore, when the pusher assembly 114 is located at the bottom of the cavity 2, the negative pressure hole 111 is slightly higher than the insert 112. Correspondingly, the wall of the cavity 2 will form a clearance hole 115 for the pusher assembly 114 to pass through. The clearance hole 115 should only allow passage of the clearance hole 115, preventing the passage of seeds to avoid leakage. The key function of the clearance hole 115 is to guide the remaining seeds in the cavity 2 that cannot be directly adsorbed by the negative pressure hole 111 to an adsorbable position, completing the complete adsorption and extraction of seed residue. It should be emphasized that the pusher assembly 114 is generally located at the edge of the turntable 11. Therefore, due to objective reasons, the gas channel of the negative pressure hole 111 cannot be completely flush with the edge of the turntable 11, creating a dead zone at the edge of the turntable 11. When the dead zone passes through the cavity 2, the seeds at the corresponding position cannot be adsorbed. The pusher assembly 114 solves this problem perfectly.

[0026] In addition, such as Figure 4 As shown, a dispensing component 13 is also provided inside the cavity 2 of the seed-collecting device 1. The dispensing component 13 removes excess seeds from the negative pressure hole 111 when more than one seed is simultaneously adsorbed by the negative pressure hole 111, which is a low-probability event. The dispensing component 13 is typically a rod-shaped object slightly offset from the path of the negative pressure hole 111 at a preset distance. The preset distance is determined based on the seed size. When the rod-shaped object touches an adsorbed seed, it dislodges the seed, leaving only a single seed. The function of the clearance hole 115 is to ensure single-seed collection; however, it is acceptable that its excessive sensitivity may occasionally cause the negative pressure hole 111 to fail to collect any seed.

[0027] like Figure 4 As shown, it is also preferable to provide a vibration component 15 on the fixed wall surface 116 of the cavity 2. It is usually an electromagnetic oscillator. The vibration applied by the vibration component 15 causes the seeds in the cavity 2 to continuously accumulate at the bottom of the cavity 2, ensuring the effect of seed adsorption.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application shall fall within the protection scope defined by the claims of this application.

Claims

1. A seed extraction device, characterized in that, include: The cavity (2) is used to hold the seeds; A turntable (11) forms part of the wall of the cavity (2); at least one negative pressure hole (111) is provided on the turntable (11); During the rotation of the turntable (11), the negative pressure hole (111) adsorbs seeds inside the cavity (2) and carries them to the outside of the cavity (2); It also includes a feeding assembly (12), which is located outside the cavity (2) and on the path of the negative pressure hole (111).

2. The seed extraction device as described in claim 1, characterized in that, The negative pressure hole (111) comes from the inside of the cavity (2) through the opening of the cavity (2) to the outside of the cavity (2), and returns to the inside of the cavity (2) through the wall joint of the cavity (2).

3. The seed extraction device as described in claim 2, characterized in that, The fixed wall surface (116) of the cavity (2) serves as the feeding assembly (12).

4. The seed extraction device as described in claim 2, characterized in that, The feeding assembly (12) is provided with a receiving device (14) below it for receiving the single seeds that are dropped.

5. The seed extraction device as described in claim 1, characterized in that, The turntable (11) has a detachable insert (112) on which the negative pressure hole (111) is formed.

6. The seed extraction device as described in claim 1, characterized in that, The turntable (11) has a negative pressure chamber (113) on the other side of the cavity (2), and the negative pressure hole (111) is connected to the negative pressure chamber (113); when the turntable (11) rotates, the negative pressure chamber (113) is maintained at negative pressure.

7. The seed extraction device as described in claim 1, characterized in that, The turntable (11) is also provided with a pusher assembly (114) at the bottom position of the cavity (2), and the pusher assembly (114) is provided with a negative pressure hole (111) on the circumference of the turntable (11).

8. The seed extraction device as described in claim 1, characterized in that, The cavity (2) is also provided with a material distribution component (13), which is set at a preset distance off the path of the negative pressure hole (111). The material distribution component (13) removes the excess seeds adsorbed on the negative pressure hole (111).

9. The seed extraction device as described in claim 1, characterized in that, A vibration component (15) is provided on the fixed wall (116) of the cavity (2). The vibration applied by the vibration component (15) causes the seeds in the cavity (2) to continuously accumulate at the bottom of the cavity (2).

Images