Seed cutting apparatus

Abstract

According to the technical scheme, the seed cutting equipment comprises a seed containing cavity used for containing a single seed and fixing the orientation of the seed; the first limiting piece is movably arranged in the seed containing cavity in the first direction so as to limit the seeds in the first direction; the second limiting piece is movably arranged in the seed containing cavity in the second direction so as to limit the seeds in the second direction; the first direction is not parallel to the second direction, and the first limiting piece and the second limiting piece limit seeds in the seed containing cavity; and the cutter can intrude into the second limiting piece and is movably arranged to cut the limited seeds. According to the seed cutting equipment, the seeds are limited in the seed containing cavity through the seed containing cavity and the multiple corresponding movably-arranged limiting pieces, it is guaranteed that the seeds do not move in the cutting process, it is guaranteed that the seeds have the relatively stable position in the batch cutting process, and therefore embryo heads and embryo tails with the stable sizes are stably obtained.

Description

Technical Field

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

[0002] At present, 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 size of the seeds of the four most important and typical crops in China, namely rice, wheat, corn, and soybeans, vary greatly. The size difference ranges from 1.5 mm to 17 mm, and the dry seeds are hard. For example, the hardness index of hard wheat can reach more than 60. To achieve automation, ensure accurate cutting and effectively protect the seed viability, improve the cutting efficiency, and break through the localization and applicability of the core cutting technology are the 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] U.S. Patent US11357159 discloses a maize slicing preparation equipment for breeding, which can be docked with the slicing titration analysis process to improve breeding efficiency. Chinese Patent CN106217432B discloses a sorting device and a seed automatic slicing sampling equipment with the sorting device. The sorting device can achieve rapid and accurate sorting of seeds and enable the seeds to be processed one by one in subsequent processes. Chinese Patent CN106226117B discloses a sampling cutting device and a seed automatic slicing sampling equipment with the sampling cutting device. The sampling cutting device can achieve rapid cutting of seeds and can keep the seeds cut with a basically constant volume or mass. Chinese Patent CN108120616B discloses a seed positioning device and a seed automatic slicing sampling equipment. The seed positioning device can quickly position the single seeds obtained by sorting in the slicing sampling unit for cutting. Chinese Patent CN109622422A discloses a rice seed sorting device and a rice seed slicing sampling equipment. A device that can conveniently sort out qualified rice seeds is provided. Chinese Patent CN107199405A discloses a corn breeding sampling automatic slicing machine, which can automatically complete all processes such as corn seed separation, orientation, positioning, cutting, sample separation, and sample marking. Chinese Patent CN103238389B discloses a full-automatic corn breeding slicing machine. Chinese Patent CN103252800A discloses a semi-automatic corn breeding slicing machine, which can realize the slicing preparation of corn kernels. Generally speaking, although the prior art can achieve seed cutting, the functions are generally limited and the structures are complex. Summary of the Invention

[0004] In view of this, this application provides a seed cutting equipment.

[0005] The present application provides a seed cutting device, including: A seed cavity for accommodating a single seed and fixing the orientation of the seed; A first limiting member movably arranged in the seed cavity along a first direction to limit the seed in the first direction; A second limiting member movably arranged in the seed cavity along a 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; A cutter, which can penetrate into the second limiting member and is movably arranged to cut the limited seed.

[0006] Preferably, the cutter is arranged parallel to the second limiting member.

[0007] Preferably, the second limiting member has a left limiting piece and a right limiting piece arranged at intervals from each other, and the cutter is arranged in the interval between the left limiting piece and the right limiting piece.

[0008] Preferably, the seed cavity is a wedge-shaped groove with a shrinking 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 together.

[0009] Preferably, the second limiting member is driven to move by a second driving device, and the cutter is driven to move by a third driving device; The base of the third driving device is fixed to the second limiting member.

[0010] Preferably, the seed cavity includes two negative pressure seed taking ports, and the two negative pressure seed taking ports are respectively opened on both sides of the seed cavity relative to the cutter.

[0011] Preferably, during the process of applying negative pressure to the negative pressure seed taking port, the cutter remains inside the seed cavity to block the seed.

[0012] Preferably, the bottom of the seed cavity may have an opening open to the outside, and the opening prevents the seed from passing through; when negative pressure is generated, air flows into the seed cavity through the opening.

[0013] Preferably, the seed cavity is arranged on a base, the base has a replaceable insert, and the seed cavity is formed in the insert.

[0014] The seed cutting device of the present application realizes limiting the seeds in the seed cavity through the seed cavity and a number of correspondingly movably arranged limiting members, which ensures that the seeds do not move during the cutting process and ensures that the seeds have a relatively stable position during the batch cutting process, so as to obtain stable-sized embryo heads and embryo tails. The seed cutting device of the present application can achieve minimally invasive cutting, and automatically collect the samples and the seeds after cutting respectively. Then it can also be used for negative pressure material taking to ensure the reliability of material taking. During the material taking process, the cutting tool is used to block the seeds, avoiding the problem of chaotic material taking. The seed cutting device has a simple structure and reliable operation. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the seed cutting device of the present application; Figure 2 It is a schematic diagram of the turntable 11 of the seed cutting device of the present application.

[0016] In the figure: 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: Cutting tool; 231: Third driving device; 24: Base; 241: Negative pressure seed taking port; 242: Insert. Detailed Description of the Preferred Embodiments

[0017] The following combines the drawings and specific embodiments to elaborate on the technical solutions of the present application. In this specification, the dimensions of the drawings do not represent the actual size ratio. The drawings are only used to reflect 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 structures, and are only for illustrative purposes.

[0018] Figure 1 It is a schematic diagram of the overall structure of the seed cutting device of the present application, Figure 2 It is a cross-sectional schematic diagram of the seed cavity 2 of the seed cutting device 1. The seed cutting device 1 has a number of (at least one) seed cavities 2, and the seed cavity 2 is a wedge-shaped groove with a shrinking cross-section. Each seed cavity 2 can accommodate a single seed. And the seeds are limited in at least two different directions in the seed cavity 2. There is a first limiting member 21 movably arranged in the seed cavity 2 along the first direction, and when the first limiting member 21 extends into a preset position in the seed cavity 2, it limits the seed in the first direction. There is a second limiting member 22 movably arranged in the seed cavity 2 along the second direction, and when the second limiting member 22 extends into a preset position in the seed cavity 2, it limits the seed in the second direction. Wherein 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 a suitable position in the wedge-shaped groove.

[0019] Specifically, inFigure 1 In the schematic diagram, the first limiting member 21 moves along the width direction A of the wedge-shaped groove of the seed cavity 2, and the second limiting member 22 moves along the depth direction B of the wedge-shaped groove. When the two come into contact and properly press the seeds, the seeds are limited to a preset position in the lower part of the seed cavity 2. At this time, the limitation of the seeds is actually achieved by the combined structure of the first limiting member 21, the second limiting member 22 and the wedge-shaped groove.

[0020] The seed cutting device 1 further includes a cutter 23 which is movably arranged and can penetrate into the seed cavity 2 and is movably arranged to cut the seeds after the cutting limitation. Refer to Figure 2 In the schematic diagram, the cutter 23 is usually a movably arranged slender sheet. Preferably, the cutter 23 is arranged parallel to the second limiting member 22, so as to cut the seeds along the same direction B. In a specific application, this realizes cutting the seeds in half to obtain the embryo head and the embryo tail. Further, the second limiting member 22 has a left limiting piece 221 and a right limiting piece 222 which are spaced apart from each other, and the cutter 23 is preferably arranged in the space between the left limiting piece 221 and the right limiting piece 222. The left and right here are only used to distinguish different limiting pieces, and the left and right are defined with the cutter 23 as the center, but should not be understood as having a substantial limitation on the limiting pieces belonging to the second limiting member 22.

[0021] The order of moving (limiting) the seeds between the first limiting member 21 and the second limiting member 22 does not need to be precisely determined in sequence. Obviously, it is required that the action of the cutter 23 is after the limitation. When the second limiting member 22 is arranged parallel to the cutter 23, the two can be independently driven. As Figure 1 shown, the second limiting member 22 is driven to move by a second driving device 223, and the cutter 23 is driven to move by a third driving device 231. The two moving motions can be independent. In addition, preferably, the base of the third driving device 231 is fixed to the second limiting member 22. At this time, when the second limiting member 22 moves, the cutter 23 moves following the second limiting member 22. 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 seeds, the cutter 23 will surely not perform cutting. After that, the third driving device 231 drives the cutter 23 to move downward to complete the cutting or severing task.

[0022] The seed cavity 2 further includes two negative-pressure seed-taking openings 241, which are respectively formed on both sides of the seed cavity 2 relative to the cutter 23. When the seed is cut into two segments, the two segments belong to the respective regions on both sides of the seed cavity 2 blocked by the cutter 23 (merely mechanically blocked, rather than not connected in space). By applying a certain negative pressure from the negative-pressure seed-taking openings 241, the negative-pressure seed-taking openings 241 can take out the cut seeds in the area on the side communicated with them. During the taking-out process, the cutter 23 remains inside the seed cavity 2 to block the seeds, that is, when the negative pressure is generated, to prevent the cut seeds in the area farther from the negative-pressure seed-taking opening 241 on the side where the negative pressure is generated from being wrongly sucked out. Because for the two negative-pressure seed-taking openings 241, it is necessary to specifically distinguish the cut seed segments taken out to separate and screen the embryo head and the embryo tail. In short, when the seed direction is correctly specified, it is always ensured that the seed segments in a fixed area on one side are the embryo head, and the seed segments in the other area are the embryo tail.

[0023] Preferably, the bottom of the seed cavity 2 may have an opening 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 the air flow to enter the seed cavity 2 when the negative pressure is generated. In addition, it should be noted that during the process of the first limiting member and the second limiting member limiting the seeds, negative pressure can be selectively connected to the opening so that it adsorbs the seeds to the opening side of the seed cavity, improving the limiting effect and accuracy of the seeds.

[0024] Furthermore, the seed cavity 2 is arranged on the base 24. In order to replace different seed cavities 2 to adapt to different seeds, the base 24 is provided with a replaceable insert 242, and the seed cavity 2 is formed in the insert 242.

[0025] The above content only describes 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 shall fall within the protection scope determined by the claims of the present application.

Claims

1. A seed cutting device, characterized in that, Comprising: A seed cavity (2) for accommodating a single seed and fixing the orientation of the seed; A first limiting member (21) movably arranged along a first direction within the seed cavity (2) to limit the seed in the first direction; A second limiting member (22) movably arranged along a second direction within the seed cavity (2) 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 within the seed cavity (2); A cutter (23), the cutter (23) being capable of penetrating into the second limiting member (22) and movably arranged to cut the limited seed.

2. The seed cutting device according to claim 1, characterized in that, The cutter (23) is arranged parallel to the second limiting member (22).

3. The seed cutting device according to claim 2, characterized in that, 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 arranged in the space between the left limiting piece (221) and the right limiting piece (222).

4. The seed cutting device according to claim 1, characterized in that, The seed cavity (2) is a wedge-shaped groove with a shrinking 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 together.

5. The seed cutting device according to claim 1, characterized in that, The second limiting member (22) is driven to move by a second driving device (223), and the cutter (23) is driven to move by a third driving device (231); The base of the third driving device (231) is fixed to the second limiting member (22).

6. The seed cutting device according to claim 1, characterized in that, The seed cavity (2) includes two negative-pressure seed-taking ports (241), and the two negative-pressure seed-taking ports (241) are respectively opened on both sides of the seed cavity (2) relative to the cutter (23).

7. The seed cutting device according to claim 1, characterized in that, During the process of applying negative pressure to the negative-pressure seed-taking port (241), the cutter (23) remains inside the seed cavity (2) to block the seed.

8. The seed cutting device according to claim 1, characterized in that, The bottom of the seed cavity (2) may have an opening open to the outside, and the opening prevents the seed from passing through. When negative pressure is generated, air flows into the seed cavity (2) from the opening.

9. The seed cutting device according to claim 1, characterized in that The seed cavity (2) is arranged on a base (24), and the base (24) has a replaceable insert (242), and the seed cavity (2) is formed in the insert (242).

Images