Seed cutting equipment
By using a seed cavity and limiting components in the seed cutting device to limit the seeds, combined with a cutter and a negative pressure seed extraction port, the problems of insufficient cutting accuracy and seed viability protection in existing equipment during the cutting process are solved, achieving stable cutting and efficient collection of seed samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKE HEFEI INTELLIGENT BREEDING ACCELERATOR INNOVATION RES INST CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-30
AI Technical Summary
Existing seed cutting equipment has problems with insufficient cutting accuracy and seed viability protection in automated breeding, especially when dealing with seeds with large differences in size and hardness, it is difficult to achieve efficient and stable cutting and sample collection.
Design a seed cutting device that uses a seed cavity and limiting components to fix the seeds in a specific position, uses a cutter to cut the seeds after they are limited, and uses a negative pressure seed collection port to collect the seed samples in segments, ensuring the stability and accuracy of the cutting process.
It achieves stable cutting of seeds, ensures reliable separation and collection of seed samples after cutting, improves cutting efficiency and seed viability protection, and simplifies equipment structure.
Smart Images
Figure CN224435813U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seed processing equipment technology, specifically to a seed cutting 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 four most important and typical crops in my country—rice, wheat, corn, and soybeans—have seeds with significant differences in appearance and size, ranging from 1.5mm to 17mm. Their dry seeds are also very 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] US Patent 11357159 discloses a corn slicing preparation device for breeding, which can be integrated with a slice titration analysis process to improve breeding efficiency. Chinese Patent CN106217432B discloses a sorting device and an automatic seed slicing sampling device incorporating the sorting device. This sorting device enables rapid and accurate sorting of seeds, allowing for individual processing of seeds in subsequent steps. Chinese Patent CN106226117B discloses a sampling and cutting device and an automatic seed slicing sampling device incorporating the sampling and cutting device. This sampling and cutting device enables rapid cutting of seeds while maintaining a relatively constant volume or mass of the cut seeds. Chinese Patent CN108120616B discloses a seed positioning device and an automatic seed slicing sampling device. This seed positioning device can quickly position sorted individual seeds in a slicing sampling unit for cutting. Chinese Patent CN109622422A discloses a rice seed sorting device and a rice seed slicing sampling device. A device is provided that can conveniently sort out qualified rice seeds. Chinese Patent CN107199405A discloses an automatic corn breeding sampling slicer, which can automatically complete the entire process of corn seed separation, orientation, positioning, cutting, sample separation, and sample labeling. Chinese Patent CN103238389B discloses a fully automatic corn breeding slicer. Chinese Patent CN103252800A discloses a semi-automatic corn breeding slicer that can slice corn kernels. In general, although existing technologies can cut seeds, they are generally limited in function and complex in structure. Utility Model Content
[0004] In view of this, this application provides a seed cutting device.
[0005] This application provides a seed cutting device, comprising:
[0006] Seed cavity, used to hold a single seed and fix its orientation;
[0007] The first limiting member is movable within the seed cavity along a first direction to limit the seed in the first direction;
[0008] The second limiting member is movable within the seed cavity along the second direction to limit the seed in the second direction; the first direction and the second direction are not parallel to each other, and the first limiting member and the second limiting member limit the seed in the seed cavity;
[0009] The cutter can penetrate the second limiting member and be moved to cut the seed after it is limited.
[0010] Preferably, the cutter is arranged parallel to the second limiting member.
[0011] Preferably, the second limiting member has a left limiting piece and a right limiting piece that are spaced apart from each other, and the cutter is disposed in the gap between the left limiting piece and the right limiting piece.
[0012] Preferably, the seed cavity is a wedge-shaped groove with a contracting cross section, the first limiting member moves along the width direction of the seed cavity, and the second limiting member moves along the depth direction of the seed cavity; the seed is limited by the first limiting member, the second limiting member, and the wedge-shaped groove.
[0013] Preferably, the second limiting member is driven to move by the second driving device, and the cutter is driven to move by the third driving device;
[0014] The base of the third driving device is fixed to the second limiting member.
[0015] Preferably, the seed cavity includes two negative pressure seed extraction ports, which are respectively located on both sides of the seed cavity relative to the cutter.
[0016] Preferably, during the application of negative pressure at the negative pressure seed extraction port, the cutter remains inside the seed cavity to block the seed.
[0017] Preferably, the bottom of the seed cavity may have an opening that is open to the outside, and the opening prevents the seeds from passing through; when negative pressure is generated, airflow enters the seed cavity through the opening.
[0018] Preferably, the seed cavity is disposed on a base, the base having a replaceable insert, and the seed cavity is formed in the insert.
[0019] The seed cutting device of this application confines the seeds within the seed cavity using a seed chamber and several corresponding movable limiting components. This ensures that the seeds do not move during the cutting process and maintain a relatively stable position during batch cutting, thereby achieving stable embryo heads and tails. This seed cutting device enables minimally invasive cutting and automatic collection of samples and cut seeds separately. It can also utilize negative pressure extraction to ensure reliable material handling. During extraction, the cutter acts as a shield to prevent seed scattering. The seed cutting device has a simple structure and reliable operation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the seed cutting device of this application;
[0021] Figure 2 This is a schematic diagram of the structure of the turntable 11 of the seed cutting device of this application.
[0022] In the picture:
[0023] 1: Seed cutting device; 2: Seed cavity; 21: First limiting member; 22: Second limiting member; 221: Left limiting piece; 222: Right limiting piece; 223: Second driving device; 23: Cutter; 231: Third driving device; 24: Base; 241: Negative pressure seed extraction port; 242: Insert. Detailed Implementation
[0024] 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.
[0025] Figure 1 This is an overall schematic diagram of the seed cutting device of this application. Figure 2 This is a cross-sectional schematic diagram of the seed cavity 2 of the seed cutting device 1. The seed cutting device 1 has a plurality of (at least one) seed cavities 2, each seed cavity 2 being a wedge-shaped groove with a constricted cross section. Each seed cavity 2 can hold a single seed. The seed is confined within the seed cavity 2 in at least two different directions. A first limiting member 21 is provided within the seed cavity 2, movable along a first direction, which confines the seed in the first direction when it extends into a predetermined position within the seed cavity 2. A second limiting member 22 is provided within the seed cavity 2, movable along a second direction, which confines the seed in the second direction when it extends into a predetermined position within the seed cavity 2. The first and second directions are not parallel, and the first and second limiting members 21 and 22 confine the seed to a suitable position within the wedge-shaped groove.
[0026] Specifically, in Figure 1 In the schematic diagram, the first limiting member 21 moves along the width direction A of the wedge-shaped groove in the seed cavity 2, and the second limiting member 22 moves along the depth direction B of the wedge-shaped groove. When the two contact and properly press the seed, the seed is confined to a preset position in the lower part of the seed cavity 2. At this time, the seed is actually confined by the structure of the first limiting member 21, the second limiting member 22, and the wedge-shaped groove.
[0027] The seed cutting device 1 also includes a movable cutter 23, which can penetrate the seed cavity 2 and be moved to limit the cutting of the seeds. (Reference) Figure 2 The diagram shows that the cutter 23 is typically a movable, elongated blade. Preferably, the cutter 23 is arranged parallel to the second limiting member 22, thereby cutting the seed in the same direction B. In practical applications, this achieves the splitting of the seed in half, yielding the embryo head and embryo tail. Furthermore, the second limiting member 22 has a left limiting piece 221 and a right limiting piece 222 spaced apart from each other, and the cutter 23 is preferably positioned in the gap between the left and right limiting pieces 221 and 222. Here, left and right are merely used to distinguish different limiting pieces; left and right are defined centered on the cutter 23, but should not be construed as having a substantial limitation on the limiting pieces subordinate to the second limiting member 22.
[0028] The precise order of movement (limiting) of the seed between the first limiting member 21 and the second limiting member 22 does not need to be determined. Obviously, the movement of the cutter 23 must occur after the limiting. When the second limiting member 22 and the cutter 23 are arranged parallel to each other, they can be driven independently. For example... Figure 1 As shown, the second limiting member 22 is driven to move by the second driving device 223, and the cutter 23 is driven to move by the third driving device 231. The two movements can be independent. Preferably, the base of the third driving device 231 can be fixed to the second limiting member 22. In this case, the cutter 23 moves along with the second limiting member 22 as the second limiting member 22 moves. However, the initial position of the cutter 23 is not lower than the position of the second limiting member 22 (along the depth direction B), so that when the second limiting member 22 limits the cutting edge, the cutter 23 will not perform a cutting operation. After this, the third driving device 231 drives the cutter 23 to move downwards to complete the cutting or severing task.
[0029] The seed cavity 2 also includes two negative pressure seed extraction ports 241, which are respectively located on both sides of the seed cavity 2 relative to the cutter 23. When a seed is cut into two segments, the two segments belong to their respective areas on either side of the seed cavity 2, which are blocked by the cutter 23 (only mechanically, not spatially). By applying a certain negative pressure from the negative pressure seed extraction ports 241, the ports can extract the cut seeds from the areas on the connected side. During the extraction process, the cutter 23 remains inside the seed cavity 2 to block the seeds, preventing the cut seeds from being mistakenly sucked out from areas farther away from the negative pressure seed extraction port 241 on the side where the negative pressure is generated. This is because the two negative pressure seed extraction ports 241 need to specifically distinguish the extracted seed segments to separate and extract the embryo head and embryo tail. In summary, when the seed orientation is correctly defined, it is always guaranteed that the seed segment in one fixed region is the embryo head, and the seed segment in the other region is the embryo tail.
[0030] Preferably, the bottom of the seed cavity 2 may have an opening that is open to the outside, which is usually a slit or other structure to prevent the seeds from falling out of the opening. The opening provides an inlet for airflow to enter the seed cavity 2 when negative pressure is generated. In addition, it should be noted that during the process of the first and second limiting members limiting the seeds, negative pressure can be selectively applied to the opening, so that the seeds are adsorbed towards the opening side of the seed cavity, thereby improving the seed limiting effect and accuracy.
[0031] Furthermore, the seed cavity 2 is disposed on the base 24. In order to replace different seed cavities 2 to accommodate different seeds, the base 24 has a replaceable insert 242, in which the seed cavity 2 is formed.
[0032] 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 cutting device, characterized in that, include: Seed cavity (2) is used to hold a single seed and fix the orientation of the seed; The first limiting member (21) is movable within the seed cavity (2) along a first direction to limit the seed in the first direction; The second limiting member (22) is movable within the seed cavity (2) along the second direction to limit the seed in the second direction; the first direction and the second direction are not parallel to each other, and the first limiting member (21) and the second limiting member (22) limit the seed in the seed cavity (2); The cutter (23) is capable of penetrating the second limiting member (22) and moving to cut the seed after it is limited.
2. The seed cutting apparatus of claim 1, wherein, The cutter (23) is arranged parallel to the second limiting member (22).
3. The seed cutting apparatus of claim 2, wherein, The second limiting member (22) has a left limiting piece (221) and a right limiting piece (222) that are spaced apart from each other, and the cutter (23) is disposed in the gap between the left limiting piece (221) and the right limiting piece (222).
4. The seed cutting apparatus of claim 1, wherein, The seed cavity (2) is a wedge-shaped groove with a contracted cross section. The first limiting member (21) moves along the width direction (A) of the seed cavity (2), and the second limiting member (22) moves along the depth direction (B) of the seed cavity (2). The seed is limited by the first limiting member (21), the second limiting member (22) and the wedge-shaped groove.
5. The seed cutting apparatus of claim 1, wherein, The second limiting member (22) is driven to move by the second driving device (223), and the cutter (23) is driven to move by the third driving device (231); The base of the third driving device (231) is fixed to the second limiting member (22).
6. The seed cutting apparatus of claim 1, wherein, The seed cavity (2) includes two negative pressure seed extraction ports (241), which are respectively opened on both sides of the seed cavity (2) relative to the cutter (23).
7. The seed cutting apparatus of claim 6, wherein, During the process of applying negative pressure through the negative pressure seed extraction port (241), the cutter (23) remains inside the seed cavity (2) to block the seeds.
8. The seed cutting apparatus of claim 1, wherein, The bottom of the seed cavity (2) may have an opening that is open to the outside. The opening prevents the seeds from passing through. When negative pressure is generated, airflow enters the seed cavity (2) from the opening.
9. The seed cutting apparatus of claim 1, wherein, The seed cavity (2) is disposed on the base (24), the base (24) having a replaceable insert (242), and the seed cavity (2) is formed in the insert (242).