Seed selection device for corn classified cultivation

Abstract

The utility model relates to the technical field of corn seedling raising, in particular to a seed selecting device for corn classified cultivation, which comprises a horizontal screening cylinder, a feed hopper is arranged at one end of the screening cylinder, and a discharge port is arranged at the other end of the screening cylinder; the bottom of the screening barrel is connected with a rectangular material guiding pipe, screening holes are distributed in the screening barrel located in the material guiding pipe, the lower end of the material guiding pipe is connected with a material receiving box, a partition plate is fixed in the material receiving box and divides the material receiving box into a first material collecting cavity and a second material collecting cavity, an air guiding pipe is arranged in the first material collecting cavity below the material guiding pipe, and air spraying heads are evenly distributed on the air guiding pipe in the axial direction. The air spraying direction of the air spraying head faces the second material collecting cavity. The screening cylinder can repeatedly screen materials, the screened materials are winnowed by air blown out by the air spraying head through the material guiding pipe, dust and small impurities in the materials can be blown out through winnowing operation, wizened and light-weight unqualified seeds can be screened out, the excellence of the seeds used for seedling raising is ensured, and the seedling raising efficiency is improved. The seedling raising effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of corn seedling technology, specifically relating to a corn seed sorting and selection device. Background Technology

[0002] In the field of agricultural genetics and breeding technology, it is often necessary to conduct genetic breeding for different crops in order to carry out research. The cultivation of these crops is generally carried out in laboratories or cultivation bases. For some crops, the requirements for seeds are high. For example, before classifying and cultivating corn seedlings, seed selection is required. Seed selection is generally carried out using sieving devices. Existing sieving devices can only screen out impurities and dust in corn seeds. Seeds that are uniform in size but lighter and do not meet the requirements cannot be effectively screened out. Seeds of different qualities are mixed together, which is not conducive to classified cultivation. Therefore, a corn classified cultivation seed selection device is needed to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in existing technologies, this utility model provides a corn sorting and seed selection device, comprising a horizontal screening cylinder. One end of the screening cylinder has a feed hopper, and the other end has a discharge port with an openable / closable gate. A rectangular guide pipe is connected to the bottom of the screening cylinder, the length of which is parallel to the length of the screening cylinder. The upper end of the guide pipe is fixedly connected to the screening cylinder. The screening cylinder inside the guide pipe is covered with sieve holes. The lower end is connected to a receiving box, and a partition is fixed inside the receiving box. The partition divides the receiving box into a material collection chamber one and a material collection chamber two. The partition corresponds vertically to one side wall of the guide pipe. The height of the partition is lower than the height of the receiving box. The lower end of the guide pipe is located above the material collection chamber one. A guide pipe is provided in the material collection chamber one below the guide pipe. The guide pipe is parallel to the length of the guide pipe. Air jets are evenly distributed along the axial direction on the guide pipe. The air jets are directed towards the material collection chamber two.

[0004] Furthermore, both ends of the air guide pipe are rotatably connected to the inner wall of the first collection chamber via bearings. One end of the air guide pipe passes through the first collection chamber and is connected to a forward and reverse motor. The other end of the air guide pipe is connected to an air inlet pipe via a rotary joint. By rotating the forward and reverse motor, the air guide pipe can be rotated back and forth at a certain angle, that is, the jet range of the jet head forms a fan shape, increasing the jet range and adjusting the jet angle, which can improve the efficiency and effect of air separation.

[0005] Furthermore, a discharge pipe is provided at the bottom of the first collection chamber, which is connected to the feed hopper via a guide pipe, and a blower is provided on the guide pipe. This arrangement allows the material falling into the first collection chamber to be transported back to the screening cylinder and fall through the guide pipe for a second air separation, ensuring that the material in the first collection chamber is qualified material.

[0006] Furthermore, the screening cylinder is equipped with a feeding screw, one end of which is connected to a reversible motor. The periodic reversal of the feeding screw causes the material inside the screening cylinder to move back and forth, repeatedly screening it to ensure thorough screening.

[0007] This utility model also includes other components that enable the corn sorting and seed selection device to function properly, such as control components for the first and second reversible motors, and control components for the fan, all of which are conventional technologies in the field. Furthermore, devices or components not specified in this utility model, such as the feeding screw and rotary joint, all employ conventional technologies and equipment in the field.

[0008] The beneficial effects of this utility model are as follows: the screening cylinder can repeatedly screen the material, and the screened material enters the receiving box through the guide pipe. The air blown out by the jet head performs air separation. The air separation operation can not only blow out the dust and fine impurities in the material, but also screen out shriveled, light and unqualified seeds, ensuring the quality of the seeds used for seedling cultivation and improving the seedling cultivation effect. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the structure of a corn sorting, raising, and seed selection device according to an embodiment of the present utility model;

[0011] Figure 2 for Figure 1 Sectional view at point AA.

[0012] In the diagram: 1. Screening cylinder; 2. Feeding pipe; 3. Feeding screw; 4. Reverse motor II; 5. Feeding hopper; 6. Receiving box; 7. Baffle plate; 8. Air inlet pipe; 9. Air guide pipe; 10. Reverse motor I; 11. Discharge pipe; 12. Fan; 13. Guide pipe; 14. Air jet head; 15. Screen hole; 16. Material gate; 17. Collection chamber I; 18. Collection chamber II. Detailed Implementation

[0013] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0014] Example

[0015] like Figure 1-2 As shown, this utility model provides a corn sorting and seed selection device, including a horizontal screening cylinder 1. One end of the screening cylinder 1 is provided with a feed hopper 5, and the other end is provided with a discharge port. The discharge port is equipped with an openable and closable material gate 16. A rectangular guide pipe 2 is connected to the bottom of the screening cylinder 1. The length of the guide pipe 2 is parallel to the length of the screening cylinder 1. The upper end of the guide pipe 2 is fixedly connected to the screening cylinder 1. The screening cylinder 1 located inside the guide pipe 2 is covered with sieve holes 15. The lower end of the guide pipe 2 is connected to a receiving box 6. A partition 7 is fixed inside the receiving box 6, which divides the receiving box 6 into a first collecting chamber 17 and a second collecting chamber 18. The partition 7 corresponds vertically to one side wall of the guide pipe 2. The height of the partition 7 is lower than the height of the receiving box 6. The lower end of the guide pipe 2 is located above the first collecting chamber 17. An air guide pipe 9 is provided in the first collecting chamber 17 below the guide pipe 2. The air guide pipe 9 is parallel to the length of the guide pipe 2. Air jets 14 are evenly distributed along the axial direction on the air guide pipe 9. The air jets 14 are directed towards the second collecting chamber 18.

[0016] Both ends of the air guide pipe 9 are rotatably connected to the inner wall of the collection chamber 17 via bearings. One end of the air guide pipe 9 passes through the collection chamber 17 and is connected to a forward / reverse motor 10. The other end of the air guide pipe 9 is connected to the air inlet pipe 8 via a rotary joint. By rotating the forward / reverse motor 10, the air guide pipe 9 can be rotated back and forth at a certain angle, that is, the spray range of the jet head 14 forms a fan shape, which increases the spray range and adjusts the spray angle, thereby improving the efficiency and effect of air separation.

[0017] The bottom of the collection chamber 17 is provided with a discharge pipe 11, which is connected to the feed hopper 5 through a conduit 13. A blower 12 is provided on the conduit 13. This setting can transport the material falling into the collection chamber 17 back to the screening cylinder and fall into the guide pipe 2 for air separation again, ensuring that the material in the collection chamber 17 is qualified material.

[0018] The screening cylinder 1 is equipped with a feeding screw 3, one end of which is connected to a forward and reverse motor 4. By periodically rotating the feeding screw 3, the material inside the screening cylinder 1 can be made to move back and forth, and be repeatedly screened to ensure that the material is fully screened.

[0019] Working principle: The air inlet duct ventilates the air into the guide duct, and the jet nozzle blows out air with a certain pressure. The corn seeds to be screened enter the screening cylinder from the feed hopper. The forward and reverse motor drives the feeding screw to rotate in both directions, so that the corn seeds are evenly distributed in the screening cylinder. The corn seeds and small particles of impurities fall into the guide duct through the screen holes, while large particles of impurities remain in the screening cylinder. After screening, they can be discharged from the outlet. When the corn seeds and small particles of impurities reach the lower end of the guide duct, the air blown out by the jet nozzle can not only blow out the dust and fine impurities in the material, but also screen out shriveled, light, and unqualified seeds. Impurities and unqualified seeds fall into the second collection chamber, while qualified seeds fall into the first collection chamber. At the same time, the seeds in the first collection chamber can be sucked into the feed hopper by the action of the fan, and then fall back into the guide duct for air separation. This ensures the quality of the seeds used for seedling cultivation in the first collection chamber and improves the seedling cultivation effect.

[0020] The feeding screw, fan, forward and reverse motor, jet nozzle, etc. in this embodiment are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.

[0021] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corn sorting and seed selection device, comprising a horizontal screening cylinder, wherein a feed hopper is provided at one end of the screening cylinder and a discharge port is provided at the other end of the screening cylinder, and an openable and closable material gate is provided at the discharge port; characterized in that: A rectangular guide pipe is connected to the bottom of the screening cylinder. The length of the guide pipe is parallel to the length of the screening cylinder. The upper end of the guide pipe is fixedly connected to the screening cylinder. The screening cylinder inside the guide pipe is covered with screen holes. A receiving box is connected to the lower end of the guide pipe. A partition is fixed inside the receiving box, which divides the receiving box into a first collecting chamber and a second collecting chamber. The partition corresponds vertically to one side wall of the guide pipe. The height of the partition is lower than the height of the receiving box. The lower end of the guide pipe is located above the first collecting chamber. An air guide pipe is provided in the first collecting chamber below the guide pipe. The air guide pipe is parallel to the length of the guide pipe. Air jets are evenly distributed along the axial direction on the air guide pipe. The air jets are directed towards the second collecting chamber.

2. The corn sorting, raising, and seed selection device according to claim 1, characterized in that: Both ends of the air guide pipe are rotatably connected to the inner wall of the first collection chamber via bearings. One end of the air guide pipe passes through the first collection chamber and is connected to a forward and reverse motor. The other end of the air guide pipe is connected to an air inlet pipe via a rotary joint.

3. The corn sorting, raising, and seed selection device according to claim 1, characterized in that: The bottom of the first material collection chamber is provided with a discharge pipe, which is connected to the feed hopper through a conduit, and a fan is provided on the conduit.

4. The corn sorting, raising, and seed selection device according to claim 1, characterized in that: The screening cylinder is equipped with a feeding screw, and one end of the feeding screw is connected to a forward and reverse motor.

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