Seed cleaning and subpackaging device of crop breeding machine

Abstract

The invention provides a seed cleaning and subpackaging device of a crop breeding machine. The seed cleaning and subpackaging device mainly comprises a first channel, a second channel, a multi-way reversing valve, a seed storage cavity and a negative pressure air chamber. Wherein the first channel is connected with a seed cleaning port of the crop breeding machine and an inlet of the multi-way reversing valve. And each second channel is respectively communicated with one outlet of the multi-way reversing valve and one corresponding seed storage cavity. The seed storage cavity is further communicated with a negative pressure air chamber, and a negative pressure fan is connected outside the negative pressure air chamber. The device is simple in structure and low in cost, automatic seed cleaning and classified recovery are achieved by switching different communication channels and combining negative pressure seed suction, the labor intensity of workers is reduced, the recovery efficiency is improved, and the seed mixing probability can be reduced through automatic recovery; furthermore, negative pressure recovery has no special requirement on an inlet, so that the negative pressure recovery device has better adaptability and can be combined with breeding machines of different types or models for use.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural equipment, and particularly relates to a seed cleaning, packaging and dispensing device for crop breeding machinery. Background Art

[0002] The breeding project is the core link of sustainable agricultural development, and seed purity is the key index determining the breeding effect and variety quality.

[0003] Currently, breeding operations are generally carried out in multiple plots. Within the designated plot length, the same type of seeds are evenly sown simultaneously in each row, and the residual seeds in the seed metering device are cleared before entering the next plot for sowing. Since the cost of cultivating experimental seeds in breeding operations is high and the recovery value is large, it is necessary to carry out the removal and recovery work of residual seeds before sowing in the next plot, and be able to accurately classify and store them while cleaning the seeds to avoid waste and seed mixing.

[0004] However, in current mechanized breeding operations, in the processes of sowing, harvesting, cleaning, etc., seed mixing (such as the residual mixing of seeds of different varieties and different generations) often occurs due to defects in mechanical structure design or improper operation procedures, which directly affects the genetic stability of breeding materials and even causes significant economic losses. Therefore, breeders need to quickly clean and package the remaining seeds in the breeding machinery in a timely manner after sowing in each plot. However, in the prior art, the removal, recovery and packaging of the remaining seeds are still carried out manually, which undoubtedly increases the manual labor intensity, and there are problems such as low efficiency, many residual dead corners, poor adaptability, etc. Moreover, with the popularization of large-scale and intensive breeding modes, manual processing cannot meet the sowing requirements of the same day and at the same time in plots.

[0005] In summary, there is still a need to design a device with a high degree of automation that can effectively remove and classify and recycle the remaining seeds after sowing in plots, so as to improve breeding efficiency and reduce the error rate. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a seed cleaning, packaging and dispensing device for crop breeding machinery to solve the above problems.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] The present invention provides a seed cleaning, packaging and dispensing device for crop breeding machinery, including a first channel, a second channel, a multi-way reversing valve, a seed storage chamber and a negative pressure air chamber;

[0009] One end of the first channel is connected to the seed cleaning port of the crop breeding machinery, and the other end is connected to the inlet of the multi-way reversing valve;

[0010] There are multiple second channels, and each second channel is respectively connected to an outlet of the multi-way reversing valve and a corresponding seed storage chamber;

[0011] The seed storage cavity is also communicated with the negative pressure air chamber, and a negative pressure fan is externally connected to the negative pressure air chamber.

[0012] Further, the multi-way directional valve includes a valve core and a valve body;

[0013] The valve core is in a cylindrical structure, and a valve core passage communicating the top surface and the side surface is provided inside; in the valve core passage, the port on the top surface of the valve core is the inlet of the multi-way directional valve, and the port on the side surface of the valve core is the first switching port;

[0014] The valve body is in a cylindrical structure, and a plurality of second switching ports are arranged on the side surface and are respectively communicated with corresponding second channels;

[0015] The valve core is rotatably connected to the valve body, and the valve core is further connected with a driving mechanism, and the driving mechanism is used for driving the first switching port to communicate with the corresponding second switching port.

[0016] Still further, the inlet end of the first channel is connected to the seed cleaning port of the crop breeding machine through a rotary joint, and the outlet end of the first channel is connected to the inlet of the multi-way directional valve;

[0017] At least part of the first channel is in a hose structure, and the reserved length of the movable end is greater than or equal to the axial movement distance of the valve core.

[0018] Still further, the plurality of second switching ports are distributed in a multi-ring shape on the side surface of the valve body;

[0019] The driving mechanism is an electric control rotary lifting mechanism, and the movable end is fixedly connected to the valve core through an adapter.

[0020] Still further, the plurality of second switching ports are distributed in a spiral shape on the side surface of the valve body;

[0021] The valve core and the valve body are in spiral fit;

[0022] The driving mechanism is a rotary mechanism, the execution end is circumferentially linked with the valve core, and the execution end is axially slidably connected to the valve core.

[0023] Still further, a label reader / writer is provided on the valve core, and a digital label is provided at each second switching port on the valve body.

[0024] Still further, an angle sensor is provided on the valve core.

[0025] Still further, the inner diameter of the first switching port is greater than the inner diameter of the second switching port;

[0026] At the edge of the first switching port, a sharp rounded corner is machined, and the inner diameter at the end of the rounded corner is equal to the inner diameter of the second switching port.

[0027] Furthermore, the seed storage cavity is provided with a seed inlet and an air outlet;

[0028] The seed inlet is communicated with the second channel, and the air outlet is communicated with the negative pressure air chamber;

[0029] A screen is detachably installed at the air outlet.

[0030] Even further, an anti-blocking cone cap is installed outside the screen.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention has a simple structure and low cost. By switching different communication channels and combining negative pressure seed suction, automatic seed cleaning and classified recycling are realized, reducing the labor intensity of personnel, improving the recycling efficiency, and the automatic recycling can also reduce the probability of mixed seeds; further, the negative pressure recycling has no special requirements for the inlet, making it have better adaptability and can be used in combination with different types or models of breeding machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a perspective view in a specific embodiment of the present invention;

[0035] Figure 2 It is a half-sectional view in a specific embodiment of the present invention;

[0036] Figure 3 It is a perspective view of the installation position of the seed storage cavity in a specific embodiment of the present invention;

[0037] Figure 4 It is a perspective view of the installation position of the filter screen in a specific embodiment of the present invention;

[0038] Figure 5 It is a perspective view of the installation position of the anti-blocking cone cap in a specific embodiment of the present invention;

[0039] Figure 6 It is a perspective view of the valve core with independent lifting and rotating movement in a specific embodiment of the present invention;

[0040] Figure 7 For Figure 6Stereogram of the valve core and the matching valve body;

[0041] Figure 8 Cross-sectional view of the alignment position of the first switching port and the second switching port in a specific embodiment of the present invention;

[0042] Figure 9 Stereogram of the valve body with the second switching ports distributed in a spiral in a specific embodiment of the present invention;

[0043] Figure 10 is Figure 9 Stereogram of the valve body, the matching valve core and the driving mechanism.

[0044] In the figure: 1. First channel, 2. Multi-way reversing valve, 3. Second channel, 4. Seed storage cavity, 5. Negative pressure air chamber, 6. Turntable, 7. Motor, 201. Valve core, 202. Valve core connecting rod, 203. Valve body, 401. Insertion port, 402. Sieve mesh, 403. Anti-blocking cone cap, 2011. First switching port, 2012. Sharp fillet, 2031. Second switching port. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In the description of the present invention, it should be understood that the relative relationships indicated by the terms "upper", "lower", "top", "side", etc. are based on the contact sequence with the material in the actual rotation direction for the purpose of facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position. Therefore, it should not be construed as a limitation to the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0049] In the present invention, unless otherwise clearly specified and defined, terms such as "installation" and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] It should also be noted that the methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0051] This application provides a crop breeding machinery seed cleaning and sub-packaging device as shown in Figure 1 , Figure 2 , which mainly includes a first channel 1, a second channel 3, a multi-way reversing valve 2, a seed storage cavity 4, and a negative pressure air chamber 5.

[0052] Among them, in this embodiment, a single-inlet strategy is adopted, and only one first channel 1 is set for illustration. It can be understood that in the scenario where multiple crop breeding machines need to clean seeds and the seed classification is the same, multiple first channels can be set and jointly connected to one inlet. Preferably, in this embodiment, in order to meet the requirements of complex connection scenarios, the main body of the first channel 1 is designed as a hose structure, the upper end is connected to the seed cleaning port of the crop breeding machine through a rotary interface, and the lower end is connected to the inlet of the multi-way reversing valve 2. Further, the rotary interface is selected as a sealed structure to maintain sufficient suction, and the pipe body of the first channel can rotate around the axis, thereby increasing the degree of freedom of connection. The rotary interface and the crop breeding machine can be connected through a flange or a quick-release structure, and the details are not described herein.

[0053] There are multiple second channels 3. In this embodiment, 20 second channels are taken as an example. Among them, each second channel 3 is respectively communicated with an outlet of the multi-way reversing valve 2 and a corresponding seed storage cavity 4. Thus, in order to reduce the volume of the device, a honeycomb layout is adopted, that is, 20 second channels 3 are arranged in a stacked manner, and a fixed partition is added in the middle. Through holes arranged in a honeycomb-like manner are provided on the fixed partition as auxiliary installation positions for the second channels 3. Each second channel 3 passes through the corresponding through hole and is fixed thereto, and is connected to a corresponding seed storage cavity 4 at the end. In this embodiment, in order to ensure the overall structural stability, the second channel 3 is designed to be made of a rigid material, such as a stainless steel elbow pipe, and then a firm main body structure is formed through the multi-way reversing valve 2 - the second channel 3 - the fixed partition - the seed storage cavity 4 - the negative pressure air chamber 5.

[0054] As shown in Figure 3As shown, a seed inlet and an air outlet are provided in the seed storage cavity 4; the connection form between the second channel 3 and the seed storage cavity 4 in this embodiment is a plug-in structure, and the connection form between the seed storage cavity 4 and the negative pressure air chamber 5 is also a plug-in structure. That is, the seed inlet and the air outlet of the seed storage cavity 4 are used as plug-in interfaces 401, and sealing rings are installed inside to make them have an interference fit with the plugs on the second channel 3 and the negative pressure air chamber 5. On the one hand, it is beneficial to maintain negative pressure, and on the other hand, it increases the connection stability. When it is necessary to remove the seed storage cavity 4 to take out seeds, only need to fix the negative pressure air chamber 5, and then pull out the fixed partition, then the second channel 3 and the seed storage cavity 4 can be separated, and each seed storage cavity 4 can be taken off from the negative pressure air chamber 5 in sequence according to needs to take out seeds. A screen 402 is detachably installed at the air outlet of the seed storage cavity 4. As Figure 4 shown, the screen 402 has a cap-like structure, is buckled on the air outlet, and its surface is in the shape of a convex arc, and the mesh number is designed and selected so that the aperture of the surface sieve holes is smaller than the minimum particle size of the remaining seeds recovered this time. In another embodiment, in order to prevent seeds from being adsorbed on the filter screen 402 under the action of suction and reduce the blockage of the filter screen by impurities, as Figure 5 shown, an anti-blocking cone cap 403 is installed above each filter screen 402. It is a drawn conical structure, and the bottom is fixed to the inner bottom surface of the seed storage cavity 4 through a connecting rod, and there is an operating space between it and the filter screen 402 to facilitate the taking and placing of the filter screen 402.

[0055] The negative pressure air chamber 5 is a disc-shaped hollow structure, and 21 raised air inlets are provided on the top surface for inserting 20 seed storage cavities 4, and one air inlet is reserved for installing a manual valve for temporary pressure relief during disassembly and assembly. The negative pressure air chamber 5 is also externally connected to a negative pressure fan through an air outlet to provide the negative pressure required by the device.

[0056] Furthermore, as Figure 6 and Figure 7 shown, the multi-way reversing valve 2 in this embodiment includes a valve core 201 and a valve body 203. Among them, the valve body 203 is fixedly connected to the second channels 3 on the periphery.

[0057] The valve core 201 has a cylindrical structure, and a valve core passage communicating the top surface and the side surface is provided inside. In the valve core passage, the port on the top surface of the valve core is the inlet of the multi-way reversing valve, which is connected to the first channel 1; the port on the side surface of the valve core is the first switching port 2011. The valve core passage is used to guide the remaining seeds falling from the first channel 1 to the first switching port 2011 on the side surface.

[0058] The valve body 203 has a cylindrical structure, and 20 second switching ports 2031 are arranged on the side surface and are respectively fixedly connected to the corresponding second channels 3.

[0059] The valve core 201 is nested in the valve body 203 and is rotatably connected to the valve body 203. To ensure the sealing performance, the matching mode between the valve core 201 and the valve body 203 is kept as clearance fit in terms of dimensions. A valve core connecting rod 202 is coaxially fixed to the lower part of the valve core 201 and is used to connect the driving mechanism, and the driving mechanism is used to drive the first switching port 2011 to be aligned and communicated with the corresponding second switching port 2031.

[0060] To reduce the hardware size, in this embodiment, the second switching ports 2031 are designed in a stacked form, that is, multiple second switching ports 2031 are distributed in a multi-ring shape on the side surface of the valve body 203. Specifically, they are distributed in two circles, upper and lower, and 10 second switching ports 2031 are evenly distributed at equal intervals in each circle.

[0061] Therefore, the driving mechanism is selected as an electric control rotary lifting mechanism, and specifically, an electric control lifting turntable can be selected. The tabletop is coaxially fixed to the valve core connecting rod 202, so as to realize the alignment and communication between the second switching port 2031 and the first switching port 2011 as required through lifting and rotation control.

[0062] Furthermore, considering that the storage position of the remaining seeds needs to be adjusted according to the actual situation during the recycling process, if marks are made on the seed storage cavity 4, a large amount of time will be wasted. Therefore, the technology of electronic tags is used to realize electric control processing. Thus, in this embodiment, a tag reader / writer is provided on the valve core 201, and a digital tag is provided at each second switching port 2031 on the valve body 203. Specifically, the NFC technology is adopted. An NFC reader / writer is installed above the first switching port 2011, and an NFC tag is installed at the corresponding position above each second switching port. In this way, when the recycling operation is carried out, the NFC reader / writer writes or reads the seed information on the aligned NFC tag. Thus, when recycling uniformly, the seed information can be quickly known by reading the information of the NFC tag, rather than relying on the control system to record the alignment record by itself to judge the seed information, which can avoid the problem of seed information errors caused by combined recycling or system problems.

[0063] Preferably, an angle sensor is further provided on the valve core 201 to calibrate the driving mechanism and avoid the problem of alignment deviation between the first and second switching ports caused by error accumulation. Further, considering that the shapes of all seeds are not all round, even if there is a small offset between the first switching port 2011 and the second switching port 2031, the seeds may be stuck and unable to fall for recycling. Therefore, as Figure 8As shown, in this embodiment, the inner diameter D of the first switching port is also designed to be larger than the inner diameter d of the second switching port. A sharp fillet 2012 (an inwardly concave fillet at the edge) is machined at the edge of the first switching port 2011, and the inner diameter at the end of the fillet is equal to the inner diameter d of the second switching port. The advantage of this design is that even if there is a small offset problem between the first and second switching ports due to the accumulation of errors over a period of time, the sharp fillet can form a guiding structure to direct the seeds into the second switching port 2031, thus avoiding the seeds getting stuck at the misaligned position.

[0064] In another embodiment, in order to reduce the number of power units of the driving mechanism and reduce costs, it is designed as Figure 9 and Figure 10 shown. The aforementioned multiple second switching ports 2031 are distributed in a spiral shape on the side surface of the valve body 203. Thus, a fixing nut is installed by drilling a hole in the middle of the negative pressure air chamber 5, and an external thread 2021 (or a spiral slideway, used in conjunction with a ball) is machined on the valve core connecting rod 202, so that the valve core 201 is in a spiral fit with the overall device. Further, a rotating mechanism is installed at the lower part of the device, which is driven by a motor 7 to rotate a turntable 6. The central hole of the turntable 6 is axially slidably connected to the valve core connecting rod 202, and the valve core connecting rod 202 and the turntable 6 are circumferentially linked through a key connection. The advantage of this design is that the lifting / descending + rotating movement of the valve core 201 can be achieved by rotating a single motor, and since the second switching ports 2031 are correspondingly distributed in a spiral shape, the first switching port 2011 and the required second switching port 2031 can be controlled to be aligned in the same way.

[0065] It should also be considered that in the above embodiment, although the first channel 1 is a hose structure, due to the lifting movement of the valve core 201, it is necessary to design that the reserved length of the movable end of the first channel 1 is greater than the maximum lifting height of the valve core 201, and it should not be too long to avoid the situation of seeds accumulating at the bent part.

[0066] Working process:

[0067] When the operation of cleaning and recycling the remaining seeds is required, start the negative pressure fan, and control the driving mechanism to drive the valve core to rise / descend and rotate according to the preset conditions, so as to align the first switching port with the designated second switching port, thereby forming a passage from the negative pressure air chamber to the seed cleaning port of the crop breeding machine. Under the action of negative pressure, the air flow flows from the seed cleaning port of the crop breeding machine to the designated seed storage cavity, and the remaining seeds of this time Figure 2 fall into the seed storage cavity along the direction of the arrow as shown; when the recycling work is completed, the driving mechanism drives the valve core back to the zero position or deflects by an angle so that the first switching port is no longer aligned with any second switching port.

[0068] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A seed cleaning and packaging device for crop breeding machinery, characterized in that: It includes a first channel, a second channel, a multi-way reversing valve, a seed storage cavity and a negative pressure air chamber; One end of the first channel is connected to the seed cleaning port of the crop breeding machine, and the other end is connected to the inlet of the multi-way reversing valve; There are a plurality of second channels, each of which is connected to an outlet of the multi-way reversing valve and a corresponding seed storage cavity; The seed storage cavity is also communicated with the negative pressure air chamber, and the negative pressure air chamber is externally connected to a negative pressure fan.

2. The seed cleaning and packaging device for crop breeding machinery according to claim 1, characterized in that: The multi-way reversing valve comprises a valve core and a valve body; The valve core is a cylindrical structure, and a valve core passage connecting the top surface and the side surface is provided inside; in the valve core passage, the port on the top surface of the valve core is the inlet of the multi-way reversing valve, and the port on the side surface of the valve core is the first switching port; The valve body is in a cylindrical structure, with a plurality of second switching ports arranged on the side and connected to the corresponding second channels respectively; The valve core is rotatably connected to the valve body, and the valve core is also connected to a driving mechanism, and the driving mechanism is used to drive the first switching port to communicate with the corresponding second switching port.

3. The seed cleaning and packaging device for crop breeding machinery according to claim 2, characterized in that: The inlet end of the first channel is connected to the seed cleaning port of the crop breeding machine through a rotary joint, and the outlet end of the first channel is connected to the inlet of the multi-way reversing valve; At least part of the first channel is a hose structure, and the reserved length of the movable end is greater than or equal to the axial movement distance of the valve core.

4. The seed cleaning and packaging device for crop breeding machinery according to claim 2 or 3, characterized in that: The plurality of second switching ports are distributed on the side surface of the valve body in a plurality of ring shapes; The driving mechanism is an electrically controlled rotating lifting mechanism, and the movable end is fixedly connected to the valve core through an adapter.

5. The seed cleaning and packaging device for crop breeding machinery according to claim 2 or 3, characterized in that: The plurality of second switching ports are distributed on the side of the valve body in a spiral shape; The valve core and the valve body are spirally matched; The driving mechanism is a rotating mechanism, the execution end is circumferentially linked with the valve core, and the execution end is axially slidably connected with the valve core.

6. The seed cleaning and packaging device for crop breeding machinery according to claim 2, characterized in that: The valve core is provided with a tag reader / writer, and each second switching port on the valve body is provided with a digital tag.

7. The seed cleaning and packaging device for crop breeding machinery according to claim 2, characterized in that: An angle sensor is arranged on the valve core.

8. The seed cleaning and packaging device for crop breeding machinery according to claim 2, characterized in that: The inner diameter of the first switching port is greater than the inner diameter of the second switching port; The edge of the first switching port is processed with a sharp rounded corner, and the inner diameter of the end of the rounded corner is equal to the inner diameter of the second switching port.

9. The seed cleaning and packaging device for crop breeding machinery according to claim 1, characterized in that: The seed storage cavity is provided with a seed inlet and an air outlet; The seed inlet is communicated with the second channel, and the air outlet is communicated with the negative pressure air chamber; A screen is detachably installed at the air outlet.

10. The seed cleaning and packaging device for crop breeding machinery according to claim 9, characterized in that: An anti-blocking cone cap is installed on the outer side of the screen.

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