Rapid detection and classification device for seed viability

Abstract

The utility model discloses a rapid detection and classification device for seed viability. The rapid detection and classification device comprises a box body, a weight screening device, a laser-induced fluorescence detection system and a classification device, the box body is hollow, three bins are arranged in the box body, a weight screening device is arranged in the top bin body, a laser-induced fluorescence detection system is arranged in the middle bin body, and a classification device is arranged in the bottom bin body; the weight screening device comprises a transmission motor, a transmission belt, a nozzle, a weight bin and an air compression tank; the transmission motor is arranged on the top bin wall, and an output shaft is connected with the conveying belt. One side of the conveyor belt is provided with an air compression tank and a plurality of nozzles, and the other side of the conveyor belt is provided with weight bins corresponding to the nozzles in number and position; and respectively performing laser irradiation according to the screened seeds, collecting fluorescence signals through a fluorescence detector, and classifying the seeds according to different ranges of intensity and wavelength distribution of the fluorescence signals.

Description

Technical Field

[0001] The utility model belongs to the technical field of seed detection, and in particular relates to a device for rapid detection and classification of seed vitality. Background Art

[0002] It is mainly based on the potential ability of seeds to germinate under suitable conditions. This is an important indicator of seed quality and is of great significance to agricultural production. Traditional seed vitality detection methods, such as tetrazolium staining, are complex and time-consuming, and include multiple steps such as pre-staining measures, sample preparation, staining, pre-identification treatment, and observation and identification. With the development of technology, non-destructive testing methods have gradually become a research hotspot. Laser-induced fluorescence technology uses a laser beam to excite seeds and measure the fluorescence signals generated by the seeds to evaluate seed vitality. A series of chemical reactions will occur during seed germination and growth. These reactions will lead to the production and release of fluorescent substances. By measuring the intensity and wavelength distribution of the fluorescence signals generated by the seeds, the vitality level of the seeds can be judged. Laser-induced fluorescence technology has the advantages of high sensitivity, fast reading, and no damage.

[0003] In the existing technology, the method for determining seed viability is cumbersome, complicated, and time-consuming. Therefore, to address this problem, it is necessary to design a device that can quickly detect and classify seed viability. Utility Model Content

[0004] In order to solve the above technical problems, the utility model designs a device for rapid detection and classification of seed vitality. The device first classifies seeds according to their weight through a conveyor belt and a nozzle. Through weight classification, the seeds can be preliminarily screened before laser-induced fluorescence detection. A rotating detection disk and a laser-induced fluorescence detection system are designed at the bottom. Laser irradiation is performed on the screened seeds respectively, and fluorescence signals are collected by a fluorescence detector. The seeds are classified according to the intensity and wavelength distribution range of the fluorescence signals. A rotating classification disk is set at the bottom, and seeds with different vitality detected are connected to different collection bins through fixed screening ports.

[0005] In order to achieve the above technical effects, the utility model is realized by the following technical solutions: a seed vitality rapid detection and classification device, comprising: a box, a weight screening device, a laser-induced fluorescence detection system, and a classification device;

[0006] The box is hollow and has three compartments inside. The top compartment is equipped with a weight screening device, the middle compartment is equipped with a laser-induced fluorescence detection system, and the bottom compartment is equipped with a classification device.

[0007] The weight screening device includes a transmission motor, a transmission belt, a nozzle, a weight bin, and an air compression tank; the transmission motor is arranged on the top bin wall, and the output shaft is connected to the conveyor belt; an air compression tank and a plurality of nozzles are arranged on one side of the conveyor belt, and a corresponding number and position of weight bins are arranged on the other side corresponding to the number of nozzles;

[0008] Furthermore, the laser-induced fluorescence detection system includes a classification pipe, a detection disk, a detection motor, a partition plate, a laser, a beam shaper, and a fluorescence detector. The laser and the fluorescence detector are installed on the top of the intermediate compartment; the beam shaper is arranged below the laser to adjust the angle and shape of the laser; the detection motor is arranged at the bottom of the intermediate compartment, below the laser and the fluorescence detector, and the output shaft of the detection motor is connected to the partition plate; a hole is opened in the middle of the detection disk and welded to the detection motor; the partition plate is arranged inside the detection disk and is movably connected to the detection disk; the upper ends of the classification pipes are respectively connected to the bottoms of the weight bins, and the lower ends are connected in parallel to the top of the detection disk, and valves are provided at the outlets of the classification pipes.

[0009] Furthermore, the detection plate is divided into a plurality of small grids, and a through hole having the same size and shape as the small grid is provided at the bottom;

[0010] Furthermore, a through hole of the same size as the through hole provided at the bottom of the detection tray is provided on the bottom edge of the intermediate storage body;

[0011] Furthermore, the classification device includes a classification motor, a classification tray, and a classification drawer; the classification motor is installed at the bottom of the bottom bin body, and the output shaft of the classification motor is connected to the classification tray; a plurality of small grids are provided in the classification tray, each of which is provided with a classification drawer;

[0012] Furthermore, the classification drawer is movably connected to the classification tray, and a handle is provided on the outside;

[0013] Furthermore, a controller is provided on one side of the top of the box body, a V-shaped feed port connecting pipe is provided on the other side, the other side of the pipe is provided above the conveyor belt, a valve is provided on the pipe, and an outer door is provided outside the bottom warehouse body.

[0014] The beneficial effects of the utility model are:

[0015] The utility model transports seeds to the conveyor belt through the feeding port and classification pipe arranged on the top, and through the conveyor belt, the high-pressure gas sprayed from the nozzle on one side of the conveyor belt blows seeds of different weights into different weight bins respectively. The high-pressure gas sprayed by the nozzle is sequentially from low to high. Through weight classification, seeds of similar weight can be grouped together for detection, thereby reducing detection errors caused by excessive individual differences in seeds.

[0016] At the same time, the seeds are transported to the detection tray in turn through the weight bin connected by the classification pipe, and the vitality of the seeds is detected and analyzed by the laser induced fluorescence detection system. The seeds are divided into different grades according to the intensity and wavelength distribution of the seed fluorescence signal. The classification tray at the bottom is controlled to rotate to catch the seeds, thereby achieving the purpose of detecting and classifying the seeds according to their vitality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of a device for rapid detection and classification of seed vitality;

[0019] Figure 2 This is a schematic diagram of a weight screening device for a rapid seed vitality detection and classification device;

[0020] Figure 3 It is a top cross-sectional view of a device for rapid detection and classification of seed vitality;

[0021] Figure 4 It is a side cross-sectional view of a device for rapid detection and classification of seed vitality;

[0022] Figure 5 This is a schematic diagram of a detection plate and a classification plate of a device for rapid detection and classification of seed vitality;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1-Box, 2-Controller, 3-Feeding port, 4-External door, 5-Pipeline, 6-Nozzle, 7-Weight bin, 8-Conveyor belt, 9-Drive motor, 10-Classification pipe, 11-Detection tray, 12-Detection motor, 13-Classification drawer, 14-Classification motor, 15-Handle, 16-Classification tray, 17-Partition plate, 18-Air compressed tank. DETAILED DESCRIPTION

[0025] The utility model discloses a device for rapid detection and classification of seed vitality, comprising: a box body 1, a weight screening device, a laser-induced fluorescence detection system, and a classification device; the box body 1 is hollow, and three compartments are arranged inside, the weight screening device is arranged in the top compartment body, the laser-induced fluorescence detection system is arranged in the middle compartment body, and the classification device is arranged in the bottom compartment body; the weight screening device comprises a transmission motor 99, a transmission belt, a nozzle 6, a weight compartment 7, and an air compression tank 18; the transmission motor 99 is arranged on the top compartment wall, and the output shaft is connected to the conveyor belt 8; an air compression tank 18 and a plurality of nozzles 6 are arranged on one side of the conveyor belt 8, and a corresponding number and corresponding position of weight compartments 7 are arranged on the other side corresponding to the number of nozzles 6; seeds are classified according to weight through the conveyor belt 8 and the nozzle 6, and through weight classification, seeds can be preliminarily screened before laser-induced fluorescence detection, and laser irradiation is performed respectively according to the screened seeds, and fluorescence signals are collected by a fluorescence detector, and seeds are classified according to the different ranges of intensity and wavelength distribution of the fluorescence signals.

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] like Figure 2 、 3 As shown, the weight screening device includes a transmission motor 99, a transmission belt, a nozzle 6, a weight bin 7, and an air compression tank 18; the transmission motor 99 is arranged on the top bin wall, and the output shaft is connected to the conveyor belt 8; the air compression tank 18 and a plurality of nozzles 6 are arranged on one side of the conveyor belt 8, and the weight bins 7 of corresponding number and position corresponding to the number of nozzles 6 are arranged on the other side;

[0029] In this embodiment, the working process of the weight screening device is as follows: the transmission motor 9 is turned on to drive the transmission belt to run, and the nozzle 6 arranged on the side is opened to spray high-pressure gas, and the pressure of the sprayed gas increases from front to back. At this time, the valve at the feed port 3 is opened, and the seeds are transported from the pipe 5 to the conveyor belt 8. The nozzle 6 puts seeds of different weights into and out of the corresponding weight bin 7, thereby achieving the purpose of pre-sorting the seeds according to their weight;

[0030] In this embodiment, the weight screening device classifies seeds by weight and can group seeds of similar weight together. In this way, in the subsequent detection process, the processing conditions can be unified, and the extended processing time caused by differences in seed weight can be reduced. The weight of the seeds is related to their maturity and development level. Seeds with moderate weight are usually more mature, and the vitality test results are more reliable, which improves the efficiency and consistency of the entire seed processing process.

[0031] Example 2

[0032] like Figure 2 、 4 As shown in Figure 5, the laser induced fluorescence detection system includes a classification pipe 10, a detection disk 11, a detection motor 12, a partition plate 17, a laser, a beam shaper, and a fluorescence detector. The laser and the fluorescence detector are installed on the top of the intermediate compartment; the beam shaper is arranged below the laser to adjust the angle and shape of the laser; the detection motor 12 is arranged at the bottom of the intermediate compartment, below the laser and the fluorescence detector, and the output shaft of the detection motor 12 is connected to the partition plate 17; a hole is opened in the middle of the detection disk 11 and is welded to the detection motor 12; the partition plate 17 is arranged inside the detection disk 11 and is movably connected to the detection disk 11; the upper end of the classification pipe 10 is respectively connected to the bottom of the weight bin 7, and the lower end is connected in parallel to the top of the detection disk 11, and the outlet of the classification pipe 10 is A valve is provided; the detection tray 11 is divided into a number of small grids, and a through hole with the same size and shape as the small grid is provided at the bottom; a through hole with the same size as the through hole provided at the bottom of the detection tray 11 is provided at the bottom edge of the intermediate warehouse body; the classification device includes a classification motor 14, a classification tray 16, and a classification drawer 13; the classification motor 14 is installed at the bottom of the bottom warehouse body, and the output shaft of the classification motor 14 is connected to the classification tray 16; a number of small grids are provided in the classification tray 16, and classification drawers 13 are provided respectively; the classification drawer 13 is movably connected to the classification tray 16, and a handle 15 is provided on the outside; a controller 2 is provided on one side of the top of the box body 1, and a V-shaped feeding port 3 connected to the pipe 5 is provided on the other side, the other side of the pipe 5 is provided above the conveyor belt 8, a valve is provided on the pipe 5, and an outer door 4 is provided outside the bottom warehouse body.

[0033] In this embodiment, the workflow of the laser induced fluorescence detection system and the classification device is as follows: the laser induced fluorescence detection system is turned on, and the detection motor 12 is turned on to drive the partition plate 17 to rotate. At this time, the valves on the classification pipe 10 are opened in sequence according to the weight of the seeds through the classification pipe 10 connected to the weight bin 7. The seeds are transported to the detection disk 11 through the classification pipe 10. According to the different ranges of the intensity and wavelength distribution of the fluorescence signal of the laser induced fluorescence detection system, the classification disk 16 on the bottom bin body is rotated, and the corresponding classification drawer 13 is turned to the through hole set at the bottom edge of the middle bin body. The seeds fall into the corresponding classification drawer 13 under the push of the partition plate 17. After the seeds are detected and classified, the outer door 4 set outside the bottom bin body is opened to take out the classification drawers 13 containing seeds with different vitality.

[0034] In this embodiment, the laser-induced fluorescence detection system is an existing technology. The laser-induced fluorescence detection technology can perform non-destructive testing on seeds, which means that no damage is caused to the seeds during the detection process, and the integrity of the seeds is maintained, which is particularly important for seed quality assessment. The laser-induced fluorescence detection technology can complete the detection in a short time, which is very useful for application scenarios that require rapid assessment of the vitality of a large number of seeds.

[0035] In this embodiment, after the seed vitality test is completed, the partition plate 17 at the bottom of the middle warehouse body is rotated, and the seeds are continuously pushed to the through hole and dropped into the classification drawer 13. The classification drawer 13 is driven by the classification plate 16 to rotate continuously, and different classification drawers 13 are used at the through hole to catch seeds with different vitality, thereby achieving the purpose of rapid detection and classification of seed vitality, solving the problem that the seed vitality determination method in the prior art is cumbersome, complicated and time-consuming.

[0036] In summary, the utility model transports seeds to the conveyor belt 8 through the feeding port 3 and the classification pipe 10 set at the top, and through the transportation of the conveyor belt 8, the high-pressure gas ejected from the nozzle 6 on one side of the conveyor belt 8 blows seeds of different weights into different weight bins 7 respectively. The high-pressure gas ejected from the nozzle 6 is from low to high in sequence. Through weight classification, seeds of similar weight can be grouped together for detection, thereby reducing the detection error caused by excessive individual differences in seeds.

[0037] At the same time, the weight bin 7 connected by the classification pipe 10 transports the seeds to the detection disk 11 in turn, and the vitality of the seeds is detected and analyzed by the laser induced fluorescence detection system. According to the intensity and wavelength distribution range of the seed fluorescence signal, the classification disk 16 at the bottom is controlled to rotate to catch the seeds, thereby achieving the purpose of detecting and classifying the seeds according to their vitality.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to only the specific implementation methods described.

Claims

1. A device for rapid detection and classification of seed vitality, characterized in that: include: Box, weight screening device, laser induced fluorescence detection system, sorting device; The box is hollow and has three compartments inside. The top compartment is equipped with a weight screening device, the middle compartment is equipped with a laser-induced fluorescence detection system, and the bottom compartment is equipped with a classification device. The laser-induced fluorescence detection system includes a classification pipe, a detection disk, a detection motor, a partition plate, a laser, a beam shaper, and a fluorescence detector. The laser and the fluorescence detector are installed on the top of the intermediate compartment; the beam shaper is arranged below the laser to adjust the angle and shape of the laser; the detection motor is arranged at the bottom of the intermediate compartment, below the laser and the fluorescence detector, and the output shaft of the detection motor is connected to the partition plate; a hole is opened in the middle of the detection disk and welded to the detection motor; the partition plate is arranged inside the detection disk and is movably connected to the detection disk; the upper ends of the classification pipes are respectively connected to the bottoms of the weight bins, and the lower ends are connected in parallel to the top of the detection disk, and valves are provided at the outlets of the classification pipes.

2. A seed vitality rapid detection and classification device according to claim 1, characterized in that: The weight screening device includes a transmission motor, a transmission belt, a nozzle, a weight bin, and an air compression tank; the transmission motor is arranged on the top bin wall, and the output shaft is connected to the conveyor belt; an air compression tank and several nozzles are arranged on one side of the conveyor belt, and weight bins of corresponding number and corresponding positions are arranged on the other side corresponding to the number of nozzles.

3. A seed vitality rapid detection and classification device according to claim 2, characterized in that: The detection plate is divided into a plurality of small grids, and a through hole having the same size and shape as the small grid is provided at the bottom.

4. A seed vitality rapid detection and classification device according to claim 1, characterized in that: A through hole of the same size as the through hole provided at the bottom of the detection plate is provided at the bottom edge of the intermediate storage body.

5. The device for rapid detection and classification of seed vitality according to claim 1, characterized in that: The classification device includes a classification motor, a classification tray, and a classification drawer; the classification motor is installed at the bottom of the bottom bin body, and the output shaft of the classification motor is connected to the classification tray; a plurality of small grids are arranged in the classification tray, and classification drawers are respectively arranged therein.

6. A seed vitality rapid detection and classification device according to claim 5, characterized in that: The classification drawer is movably connected to the classification tray and has a handle on the outside.

7. A seed vitality rapid detection and classification device according to claim 1, characterized in that: A controller is provided on one side of the top of the box body, a V-shaped feed port connecting a pipe is provided on the other side, the other side of the pipe is provided above the conveyor belt, a valve is provided on the pipe, and an outer door is provided outside the bottom bin body.

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