Seed taking equipment

Abstract

According to the technical scheme, the seed taking equipment comprises a containing cavity used for containing seeds; the turntable forms part of the wall surface of the accommodating cavity; at least one negative pressure hole is formed in the turntable; in the rotating process of the rotating disc, the negative pressure holes adsorb seeds in the containing cavity and carry the seeds to the outside of the containing cavity. According to the seed taking equipment, the accommodating cavity 2 is matched with the rotating disc which is rotationally arranged and provided with the negative pressure holes to realize single-grain circulating material taking of seeds, the structure is simple, the work is reliable, and automatic continuous single-grain material taking can be realized. And the function of automatically cutting single seeds in batches can be realized through the matching of the rear section assembly.

Description

Technical Field

[0001] This application relates to the technical field of seed treatment equipment, and particularly relates to a seed extraction device. Background Art

[0002] Currently, with the help of seed slicing technology and molecular-assisted breeding technology, micro-sampling of seeds is carried out before sowing to complete genotype selection, doubling the breeding efficiency and scale. The appearance and morphology of the four most important and typical crop seeds in China, namely rice, wheat, corn, and soybeans, vary greatly, with size differences ranging from 1.5 mm to 17 mm. Dry seeds are hard, for example, the hardness index of hard wheat can reach over 60. To achieve automation, ensure accurate cutting and effectively protect seed viability, improve cutting efficiency, and break through the localization and applicability of core cutting technology are urgent requirements for seed industry safety and industrialization. With the expansion of the breeding scale, the sampling efficiency and quality of samples for molecular detection have become the technical bottleneck of molecular-assisted breeding.

[0003] Monsanto and Pioneer Seed Companies in the United States have announced seed slicing technologies for precisely cutting corn kernels with lasers or mechanical blades, as well as laser-assisted seed selection technologies. However, this method is only applicable to large grains such as corn morphology, and there are deficiencies such as easy damage to sampled seeds (germination rate of 75%). Laser cutting has advantages such as non-contact and zero pollution, but there are also deficiencies such as limited cutting efficiency. Mechanical cutting has the disadvantages of single-grain grasping and cutting one by one, resulting in the cutting efficiency and quality not meeting the usage requirements.

[0004] In the above wheat breeding process, it is necessary to perform cutting and other treatments on wheat seeds. Manual operation is not applicable in large-scale operations, and corresponding automated wheat seed cutting equipment needs to be developed. To improve work efficiency, such cutting equipment may also need to be throughput, that is, multiple cutting operations are run in parallel simultaneously. And the prerequisite for the cutting process is to reliably obtain and form individual and separated single wheat seeds. Summary of the Invention

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

[0006] This application provides a seed extraction device, including: A cavity for holding seeds; A turntable forming part of the wall surface 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 outside the cavity.

[0007] Preferably, the negative pressure hole comes from the inside of the cavity through the opening of the cavity to the outside of the cavity, and returns to the inside of the cavity through the wall surface junction of the cavity.

[0008] Preferably, a material pushing component is further included, and the material pushing component is located outside the cavity and on the passing path of the negative pressure holes.

[0009] Preferably, the fixed wall surface of the cavity serves as the material pushing component.

[0010] Preferably, a material receiving device is arranged below the material pushing component for receiving the single seeds pushed off.

[0011] Preferably, the turntable has a detachable insert, and the negative pressure holes are formed on the insert.

[0012] Preferably, a negative pressure chamber is provided on the other side of the turntable relative to the cavity, and the negative pressure holes communicate with the negative pressure chamber; when the turntable rotates, the negative pressure in the negative pressure chamber is maintained.

[0013] Preferably, a material pushing component is further arranged at the bottom position of the turntable corresponding to the cavity, and the material pushing component is arranged corresponding to the negative pressure holes in the circumferential direction of the turntable.

[0014] Preferably, a material distributing component is further arranged inside the cavity, and the material distributing component is arranged at a preset distance deviated from the passing path of the negative pressure holes, and the material distributing component removes the seeds adsorbed excessively on the negative pressure holes.

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

[0016] The seed taking device of the present application realizes the single - grain cyclic material taking of seeds through the cooperation of the cavity 2 and a rotatably arranged turntable with negative pressure holes. Its structure is simple and the work is reliable, and it can realize automatic continuous single - grain material taking. Through the cooperation of the subsequent components, the automatic batch single - grain seed cutting function can be realized. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the seed taking device of the present application; Figure 2 is the structural schematic diagram of the turntable 11 of the seed taking device of the present application; Figure 3 is the structural schematic diagram of the material pushing component 114 of the seed taking device of the present application; Figure 4 is the structural schematic diagram of another embodiment of the seed taking device of the present application.

[0018] In the figure: 1: Seed extraction device; 11: Turntable; 111: Negative pressure hole; 112: Insert; 113: Negative pressure chamber; 114: Pushing component; 115: Avoidance hole; 116: Fixed wall surface; 12: Material dialing component; 13: Material separating component; 14: Material receiving device; 15: Vibration component; 2: Cavity. Detailed implementation mode

[0019] The technical solutions of the present application will be described in detail below in combination with the attached 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 reflect the relative position relationship and connection relationship between each component. Components with the same name or the same reference numeral represent similar or the same structures, and are only for illustrative purposes.

[0020] Figure 1 It is a schematic structural diagram of the seed extraction device of the present application. This type of seed extraction device can not only be applied to the extraction of wheat seeds, but should also be applicable to the separation and extraction of other plant seeds with similar quality and size to wheat seeds, such as rice. The seed extraction device 1 has a cavity 2 for holding seeds, and has a turntable 11. The turntable 11 forms part of the wall surface of the cavity 2. At least one negative pressure hole 111 is provided on the turntable 11. A material dialing component 12 is arranged outside the cavity 2. During the rotation of the turntable 11, any negative pressure hole 111 periodically switches between the inside and the outside of the cavity 2. Due to the effect of negative pressure, the negative pressure hole 111 adsorbs seeds inside the cavity 2 and carries them to the outside of the cavity 2. The material dialing component 12 is arranged on the passing path of the negative pressure hole 111 outside the cavity 2. The seeds fall from the turntable 11 under the block of the material dialing component 12. Therefore, the material dialing component 12 only realizes the dropping of seeds, but it is not necessary to perform the material dialing action. The relative movement actually brought about only by the rotation of the turntable 11 is sufficient.

[0021] For example Figure 1 In the embodiment, the cavity 2 is in a funnel shape, and the turntable 11 is a disc. A part of the turntable 11 forms a part of the wall surface of the cavity 2, and the rotation direction of the turntable 11 is specific. This rotation direction is defined as follows, that is, the rotation direction makes the negative pressure hole 111 on the turntable 11 always pass from the inside of the cavity 2 through the opening of the cavity 2 to the outside of the cavity 2, and then return to the inside of the cavity 2 through the wall joint of the cavity 2. The reason for such a setting is to ensure that there is no blockage in the process of the seeds coming from the inside of the cavity 2 to the outside of the cavity 2. In other embodiments, the direction of the turntable 11 may not be specified, but there always needs to be a space similar to Figure 1 the opening in the embodiment to provide a channel for the process of the seeds moving from the inside of the cavity 2 to the outside of the cavity 2.

[0022] In Figure 1In the embodiment, the seed feeding component 12 is not an independent component and can be the fixed wall surface of the cavity 2. At this time, during the process of the negative pressure hole 111 returning to the inside of the cavity 2, when the seeds contact the fixed wall surface, they will fall outside the cavity 2. Generally, by reasonably setting the aperture of the negative pressure hole 111 according to the size of specific crop seeds, it can be basically ensured that the negative pressure hole 111 adsorbs a single crop seed each time. Of course, we do not rule out setting an independent seed feeding component 12 at the passing position of the negative pressure hole 111 outside the cavity 2 to realize the function of dropping the seeds. The seed feeding component 12 is usually stationary relative to the cavity 2, but it can also be set to move relative to the cavity 2, such as swinging or rotating to realize the literal function of "feeding". Usually, a receiving device 14 is arranged below the seed feeding component 12 to receive the dropped single seeds.

[0023] Such as Figure 2 In the embodiment. It is very important to make the negative pressure hole 111 adapt to diverse seed feeding requirements. For example, the feeding of different crop seeds. For this purpose, the turntable 11 can be provided with a detachable insert 112, and the negative pressure hole 111 is formed on the insert 112. Different inserts 112 can be set with different negative pressure hole 111 sizes according to the corresponding seed sizes / qualities. Then, when meeting different crop seed taking requirements, it can be realized by adaptively replacing different inserts 112. The insert 112 can be actually fixed to the turntable 11 by means such as threaded connection or snap connection, and preferably, after being fixed, the joint is airtight.

[0024] In order to maintain the negative pressure of the negative pressure hole 111 when the turntable 11 rotates, generally, the turntable 11 is driven to rotate by a driving component, and a negative pressure chamber 113 connected to a negative pressure source is provided on the other side of the turntable 11 relative to the cavity 2, and the negative pressure hole 111 leads to the negative pressure chamber 113. The turntable 11 can maintain the negative pressure during rotation through a flexible member between it and the negative pressure chamber 113, such as a gasket, a sealing ring, etc. As long as the negative pressure within a preset range can be maintained, appropriate leakage at the dynamic sealing part formed by the gasket, etc. is allowed.

[0025] Generally, such as Figure 1 And Figure 3 As shown, a pushing component 114 is also provided on the turntable 11 corresponding to the bottom position of the cavity 2. The pushing component 114 is basically arranged circumferentially on 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 the embodiments, their circumferential positions are the same, only with a slight distance in the radial position, and this distance is generally smaller than the size of a single seed. When the pushing component 114 is located at the bottom of the cavity 2, the negative pressure hole 111 is slightly higher than the insert 112. Accordingly, an avoidance hole 115 for the pushing component 114 to pass through will be formed on the wall surface of the cavity 2. The avoidance hole 115 should only allow the pushing component 114 to pass through while preventing the seeds from passing through to avoid material leakage. The key function of the avoidance hole 115 is to guide the seeds that cannot be directly adsorbed by the negative pressure hole 111 remaining in the cavity 2 to the adsorbable position, completing the full adsorption and picking of the seed tailings. It should be emphasized that the pushing component 114 is generally arranged at the edge of the turntable 11. Therefore, due to objective reasons, the gas passage of the negative pressure hole 111 cannot be completely arranged close to the edge of the turntable 11, resulting in 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 pushing component 114 just solves this problem.

[0026] In addition, as Figure 4 shown, a material distributing component 13 is further arranged inside the cavity 2 of the seed picking device 1. The material distributing component 13 is used to strip the excess seeds from the negative pressure hole 111 in the case where more than 1 seed is simultaneously adsorbed by the negative pressure hole 111 with a small probability. The material distributing component 13 is usually a rod-shaped object arranged with a slight deviation at a preset distance on the passing path of the negative pressure hole 111. The preset distance is determined according to the seed size. When the rod-shaped object touches the adsorbed seeds, the seeds are knocked off, leaving only a single seed. The function of the avoidance hole 115 is to ensure the picking of a single seed. On this basis, it is acceptable that the negative pressure hole 111 occasionally fails to pick any seeds due to being too sensitive.

[0027] As Figure 4 shown, it is also preferably to arrange a vibration component 15 on the fixed wall surface 116 of the cavity 2. Usually an electromagnetic vibrator, the vibration applied by the vibration component 15 makes the seeds in the cavity 2 continuously gather at the bottom of the cavity 2 to ensure the effect of adsorbing seeds.

[0028] The above content is only a description of the preferred embodiments of the present application, and does not limit the scope of the present application. Without departing from the design spirit of the present application, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present application should fall within the protection scope determined by the claims of the present application.

Claims

1. A seed extraction device, characterized in that, Including: A cavity (2) for containing seeds; A turntable (11) forming part of the wall surface of the cavity (2); at least one negative pressure hole (111) is formed in 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).

2. The seed extraction device according to claim 1, characterized in that, The negative pressure hole (111) passes 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 joint of the wall surface of the cavity (2).

3. The seed extraction device according to claim 1, characterized in that, It further includes a material distributing component (12), and the material distributing component (12) is located outside the cavity (2) and on the passing path of the negative pressure hole (111).

4. The seed extraction device according to claim 3, characterized in that, The fixed wall surface (116) of the cavity (2) serves as the material distributing component (12).

5. The seed extraction device according to claim 3, characterized in that, A material receiving device (14) is arranged below the material distributing component (12) for receiving the single seeds knocked off.

6. The seed extraction device according to claim 1, characterized in that, The turntable (11) has a detachable insert (112), and the negative pressure hole (111) is formed in the insert (112).

7. The seed extraction device according to claim 1, characterized in that On the other side of the turntable (11) relative to the cavity (2), there is a negative pressure chamber (113), and the negative pressure hole (111) communicates with the negative pressure chamber (113); when the turntable (11) rotates, the negative pressure in the negative pressure chamber (113) is maintained.

8. The seed extraction device according to claim 1, characterized in that, A material pushing component (114) is further arranged at the bottom position of the turntable (11) corresponding to the cavity (2), and the material pushing component (114) is arranged corresponding to the negative pressure hole (111) in the circumferential direction of the turntable (11).

9. The seed extraction device according to claim 1, characterized in that A material separating component (13) is further arranged inside the cavity (2), and the material separating component (13) is arranged at a preset distance deviation on the passing path of the negative pressure hole (111), and the material separating component (13) removes the seeds adsorbed excessively on the negative pressure hole (111).

10. The seed extraction device according to claim 1, characterized in that, A vibration component (15) is arranged on the fixed wall surface (116) of the cavity (2), and the vibration applied by the vibration component (15) causes the seeds in the cavity (2) to continuously gather at the bottom of the cavity (2).

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