Agricultural product sorting equipment with aspergillus flavus detection function

Abstract

The utility model discloses agricultural product sorting equipment with an aspergillus flavus detection function, relates to the technical field of agricultural product processing, and solves the problem of inaccurate sorting caused by unorganized conveying and detection processes of agricultural product sorting equipment in the prior art. The device comprises a conveying belt, the tail end of the conveying belt is connected with a detection bin, a light source and an image processing unit are arranged in the detection bin, a vibration disc connected with the conveying belt is arranged in the detection bin, the tail end of the vibration disc is provided with a plurality of parallel flow guide grooves, and the tail ends of the flow guide grooves correspond to the image processing unit. A blowing assembly is arranged on the detection bin behind the image processing unit, and a blowing port of the blowing assembly is matched with the flow guide groove; an opening is formed in the bottom of the detection bin, and a first discharging groove matched with the air blowing port in orientation and a second discharging groove corresponding to the flow guide groove in orientation are fixedly formed in the opening. The device is reliable in structure, the moving line path of agricultural products in the detection process is limited, and the problem that sorting is inaccurate due to the fact that the conveying path in existing equipment is poor in orderliness is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural product processing, in particular to agricultural product sorting equipment with aflatoxin detection function. Background Art

[0002] Aflatoxin is a highly carcinogenic chemical that easily grows on crops. Existing agricultural product color sorters use standard light sources to automatically sort out moldy, damaged, and discolored grains based on the surface optical properties of the produce. However, for some agricultural products contaminated with aflatoxin, sorting based on surface optical signals is difficult.

[0003] Chinese invention patent publication number CN104646315A discloses an intelligent agricultural product sorting machine with aflatoxin detection function. The core of the device is an aflatoxin sorting and detection unit, and a supporting crawler conveyor device is used to transport agricultural products. The sorting and detection chamber box is equipped with ultraviolet and visible light sources, a filter group of specific wavelengths, a plane mirror group and a linear array camera. The sorting and detection device is installed at the end of the crawler conveyor mechanism, and a feeding mechanism is installed at the upper end of the crawler conveyor mechanism. An air jet valve is installed at the outlet of the sorting and detection chamber channel, and a material collection box is installed below the air jet valve.

[0004] The device's sorting and detection unit is equipped with ultraviolet and visible light sources, a dual-wavelength filter set, a dual-mirror reflection system, and a linear array CCD camera. Materials are fed into the sorting and detection unit via a crawler conveyor. The linear array CCD camera captures a visible light image of the material and two ultraviolet fluorescence images captured through the filters. A computer detection algorithm enables online detection of aflatoxin-contaminated grains. The wavelengths of the dual filters used in this invention are determined using hyperspectral imaging methods. By replacing different filters, different agricultural products can be detected. Specifically, 437 and 537 nm can be used to detect corn, 420 and 450 nm can be used to detect peanuts, and 400 and 420 nm can be used to detect chili peppers. This device can be widely used in the agricultural product processing and trade sector to improve the efficiency of online aflatoxin detection.

[0005] However, in this invention, during the online detection stage, the agricultural products output by the crawler conveyor are output within a larger width range, the conveying path is uncertain, and the output agricultural products fly over the sorting and detection units in a scattered state in a planar manner, rather than passing through the sorting and detection units in a linear manner. The conveying and detection process is not very organized, and cannot be detected and sorted one by one. Therefore, when agricultural products containing aflatoxin are identified, the rear jet valve cannot be accurately aimed at the defective agricultural products, and it is easy to blow the defective products and good products that pass through the jet valve at the same time into the collection box together, resulting in problems of multiple screening and wrong screening. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an agricultural product sorting device with aflatoxin detection function, which solves the problem of inaccurate sorting caused by the disordered conveying and detection process in the agricultural product sorting equipment in the prior art.

[0007] The technical solution of the utility model is achieved as follows: an agricultural product sorting equipment with aflatoxin detection function, comprising a conveyor belt, the end of the conveyor belt is connected to a detection chamber, a light source and an image processing unit are provided in the detection chamber, a vibration plate connected to the conveyor belt is provided in the detection chamber, the end of the vibration plate is provided with a plurality of parallel guide grooves, the ends of the guide grooves correspond to the image processing unit, a blowing assembly is provided on the detection chamber behind the image processing unit, and the blowing port of the blowing assembly matches the guide groove; the bottom of the detection chamber is open, and a first discharge trough matching the direction of the blowing port and a second discharge trough corresponding to the direction of the guide groove are fixedly provided at the opening.

[0008] Preferably, the vibration plate includes a support frame, which is fixed on the ground. A plurality of springs are provided above the support frame and connected to a supporting plate through the springs. A vibrator is provided at the bottom of the supporting plate.

[0009] Preferably, a material baffle is provided on the support plate, one end of the support plate corresponds to the conveyor belt, and the other end is provided with a plurality of diverter plates, and the gaps between the diverter plates correspond to the guide grooves respectively.

[0010] Preferably, a support plate is transversely provided in the detection chamber, and the guide grooves are all provided on the support plate, and the guide grooves are groove bodies with a C-shaped cross-section.

[0011] Preferably, one end and the middle of the guide groove are hinged to two support plates respectively, the support plate connected to the end of the guide groove is fixedly connected to the detection chamber, the side wall of the detection chamber is provided with an arc-shaped slide groove, and the support plate connected to the middle of the guide groove is adjustably connected to the arc-shaped slide groove through bolts to realize the adjustment of the guide groove angle.

[0012] Preferably, the blowing assembly includes a structural plate fixed in the detection chamber, the structural plate is provided with a plurality of nozzles, the nozzles are respectively connected to the gas storage tank through pipelines, and the gas storage tank is connected to the air pump.

[0013] Preferably, each of the pipelines is provided with a solenoid valve. The nozzle passes through the structural plate and is threadedly connected to the structural plate.

[0014] Preferably, the first discharge trough and the second discharge trough correspond to a scrap cart and a good product cart respectively arranged on the ground. The scrap cart and the good product cart both include an open trough fixed on the trolley.

[0015] The beneficial effects of the present invention are as follows: by setting up a conveyor belt, incoming material transportation can be realized; by setting up a vibration plate, the transported material can be sorted and organized, and the material can be guided through a number of guide troughs connected to the rear end, flowing forward in multiple parallel linear paths, making the transport process more organized. By cooperating with the light source and the image processing unit, the agricultural product materials transported in a linear and neat manner can be illuminated and fluorescently identified and analyzed, thereby detecting materials containing aflatoxin, and using the rear blowing component to blow the defective agricultural product materials containing aflatoxin, thereby destroying their transport routes and blowing the defective agricultural product materials into the first discharge trough, while the normal good material will naturally fall into the second discharge trough without being disturbed, thereby realizing the sorting of agricultural product materials. The structure of this device is reliable, and it limits the moving path of the agricultural products during the detection process, overcoming the problem of inaccurate sorting caused by the poor organization of the transport path in existing equipment, and at the same time avoiding the problems of multiple selection and wrong selection caused by the transport path. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] In the figure: 1: conveyor belt, 2: detection chamber, 3: light source, 4: image processing unit, 5: vibration plate, 6: guide groove, 7: blowing component, 8: first discharge trough, 9: second discharge trough, 51: support frame, 52: spring, 53: support plate, 54: vibrator, 55: baffle plate, 56: diverter plate, 61: support plate, 71: structural plate, 72: nozzle, 73: pipeline, 81: scrap cart, 82: good product cart, 83: open trough, 84: trolley. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 、 2As shown in Example 1, an agricultural product sorting device with aflatoxin detection function includes a conveyor belt 1, which can convey incoming agricultural products. The end of the conveyor belt 1 is connected to a detection chamber 2, which is equipped with a light source and an image processing unit 4. The detection chamber 2 is equipped with a vibration disk 5 connected to the conveyor belt 1, and the conveyed materials can be sorted and organized by the vibration disk 5. The end of the vibration disk 5 is provided with a plurality of parallel guide grooves 6, and the ends of the guide grooves 6 correspond to the graphics processing unit 4. The detection chamber 2 behind the image processing unit 4 is provided with a blowing assembly 7, and the blowing port of the blowing assembly 7 matches the guide groove 6. The bottom of the detection chamber 2 is open, and a first discharge trough 8 that matches the direction of the blowing port and a second discharge trough 9 that corresponds to the direction of the guide groove 6 are fixedly provided at the opening.

[0022] In actual use, the agricultural products to be sorted are gradually and evenly unloaded onto a conveyor belt using a conventional hopper. The conveyor belt then transports the materials forward, where they land on a vibrating plate and are evenly dispersed into several diversion troughs connected to the rear end. The materials flow forward along multiple parallel linear paths, resulting in a more organized conveying process. After exiting the diversion troughs in a linear path, the materials pass through a light source and an image processing unit. The light source illuminates the moving materials, and the image processing unit performs fluorescence recognition and analysis, thereby detecting materials containing aflatoxin. As a further alternative embodiment, the image processing unit in this embodiment can optionally employ a conventional sorting and detection unit, such as that described in Chinese Invention Patent Publication No. CN104646315A, for detection and image recognition, and a conventional light source, such as an ultraviolet light source, for illumination. When the materials reach the position of the blowing assembly, the rear blowing assembly is controlled to blow air at the defective agricultural products containing aflatoxin, disrupting their conveying path and causing them to fall into the first discharge trough. Normal, acceptable agricultural products, however, fall naturally into the second discharge trough without being disturbed, achieving the separation of the agricultural products. The device has a reliable structure and limits the movement path of agricultural products during the detection process, overcoming the problem of inaccurate sorting caused by poor organization of the conveying path in existing equipment, while also avoiding the problems of multiple selection and wrong selection caused by the conveying path.

[0023] As a further embodiment, the first discharge chute 8 and the second discharge chute 9 correspond to the scrap cart 81 and the good product cart 82 set on the ground, respectively. The scrap cart and the good product cart are set to facilitate the classification, collection and transfer of the sorted materials to the next process. Specifically, the scrap cart 81 and the good product cart 82 both include an open trough 83, and the open trough 83 is fixed on a trolley 84. During sorting, after the agricultural products with no aflatoxin detected flow out of the guide trough, there is no interference from wind blowing factors, and they fall directly into the second discharge chute, and then fall into the open trough of the good product cart through the second discharge chute. The agricultural products with aflatoxin detected are disturbed by the wind flow blown by the blowing component, changing their falling trajectory, being blown into the first discharge chute, and finally falling into the open trough of the scrap cart.

[0024] Example 2, based on Example 1, the vibration plate 5 includes a support frame 51, which is fixed on the ground. A number of springs 52 are provided above the support frame 51 and connected to a support plate 53 through the springs 52. A vibrator 54 is provided at the bottom of the support plate 53. Among them, the vibrator can optionally be a conventional vibrator, including a double-headed motor, which is fixed to the bottom surface of the support plate through a bracket seat. Semi-disc blocks are fixed on the output shafts at both ends of the double-headed motor. When the double-headed motor drives the double disc blocks to rotate, regular vibrations are generated, and the vibrations are synchronously transmitted to the support plate, thereby achieving vibration sorting of the materials on the support plate. In addition, a material baffle 55 is provided on the support plate 53. The material baffle is set in a C shape. The provision of the material baffle 55 can form a accommodating space at the top of the support plate, forming a limit for the agricultural products falling thereon and preventing them from falling from the sides.

[0025] In this embodiment, one end of the support plate 53 corresponds to the conveyor belt 1, and the other end is provided with a plurality of diverter plates 56. The gaps between the diverter plates 56 correspond to the guide grooves 6 respectively. In this embodiment, a total of four diverter plates are provided. The diverter plates form five dynamic flow channels in the end space above the support plate. The five dynamic flow channels correspond to the five guide grooves respectively, forming five conveying paths for the materials.

[0026] Example 3, based on Example 2, a support plate 61 is provided transversely within the inspection chamber 2, and the guide troughs 6 are all provided on the support plate 61. The guide troughs 6 are trough bodies with a C-shaped cross-section. Specifically, in this embodiment, the guide troughs 6 are hinged to two support plates 61 at one end and the middle portion, respectively. The support plates 61 connected to the ends of the guide troughs 6 are fixedly connected to the inspection chamber 2. The side walls of the inspection chamber 2 are provided with arc-shaped chutes. The support plate 61 connected to the middle portion of the guide troughs 6 is adjustably connected to the arc-shaped chutes via bolts, thereby achieving adjustable angles of the guide troughs 6.

[0027] In this embodiment, the guide trough is arranged obliquely downward. After the material falls on the guide trough, the bolt is rotated when the angle of the material falling needs to be changed, so that the support plate 61 connected to the middle of the guide trough moves along the arc-shaped slide groove. After moving into place, it is locked with the bolt. After passing through the guide trough, the material falls in the air in a parabolic form, passes through the graphics processing unit and the blowing component in turn, and finally falls into the first discharge trough or the second discharge trough.

[0028] Example 4, based on Example 3, the blowing component 7 includes a structural plate 71 fixed in the detection chamber 2, and a plurality of nozzles 72 are provided on the structural plate 71. In this embodiment, a total of five nozzles are provided, corresponding to the materials flowing out of the five guide grooves. The nozzles 72 are connected to the gas storage tank through pipes 73, and the gas storage tank is connected to the air pump. In this embodiment, the nozzle 72 passes through the structural plate 71 and is threadedly connected to the structural plate 71, so that in actual use, by rotating the nozzle, the position of the nozzle outlet end can be changed, thereby better blowing off the material in the air path. As a further embodiment, a solenoid valve is provided on each pipe 73, so that the solenoid valve is used to control the start and end of the blowing process. After receiving the blow-off signal, the solenoid valve controls the corresponding nozzle to spray gas.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An agricultural product sorting device with a function of detecting aflatoxin, comprising a conveyor belt (1), wherein the end of the conveyor belt (1) is connected to a detection chamber (2), wherein a light source (3) and an image processing unit (4) are provided in the detection chamber (2), and wherein: The detection chamber (2) is provided with a vibration plate (5) connected to the conveyor belt (1), and a plurality of parallel guide grooves (6) are provided at the end of the vibration plate (5), and the ends of the guide grooves (6) correspond to the image processing unit (4). A blowing assembly (7) is provided on the detection chamber (2) behind the image processing unit (4), and the blowing port of the blowing assembly (7) matches the guide groove (6); the bottom of the detection chamber (2) is open, and a first discharge groove (8) matched with the direction of the blowing port and a second discharge groove (9) corresponding to the direction of the guide groove (6) are fixedly provided at the opening.

2. The agricultural product sorting equipment with aflatoxin detection function according to claim 1, characterized in that: The vibration plate (5) includes a support frame (51) fixed on the ground, a plurality of springs (52) are provided above the support frame (51) and connected to a supporting plate (53) via the springs (52), and a vibrator (54) is provided at the bottom of the supporting plate (53).

3. The agricultural product sorting equipment with aflatoxin detection function according to claim 2, characterized in that: A material blocking plate (55) is provided on the support plate (53), one end of the support plate (53) corresponds to the conveyor belt (1), and the other end is provided with a plurality of diverter plates (56), and the gaps between the diverter plates (56) correspond to the guide grooves (6) respectively.

4. The agricultural product sorting equipment with aflatoxin detection function according to claim 3, characterized in that: A support plate (61) is transversely provided in the detection chamber (2), and the guide grooves (6) are all provided on the support plate (61). The guide grooves (6) are groove bodies with a C-shaped cross section.

5. The agricultural product sorting equipment with aflatoxin detection function according to claim 4, characterized in that: One end and the middle of the guide groove (6) are hinged to two support plates (61) respectively. The support plate (61) connected to the end of the guide groove (6) is fixedly connected to the detection chamber (2). The side wall of the detection chamber (2) is provided with an arc-shaped sliding groove. The support plate (61) connected to the middle of the guide groove (6) is adjustably connected to the arc-shaped sliding groove through bolts, thereby realizing the adjustment of the angle of the guide groove (6).

6. The agricultural product sorting equipment with aflatoxin detection function according to any one of claims 1 to 5, characterized in that: The blowing assembly (7) comprises a structural plate (71) fixedly arranged in the detection chamber (2), and a plurality of nozzles (72) are provided on the structural plate (71). The nozzles (72) are respectively connected to the gas storage tank through pipes (73), and the gas storage tank is connected to the air pump.

7. The agricultural product sorting equipment with aflatoxin detection function according to claim 6, characterized in that: The pipelines (73) are each provided with a solenoid valve.

8. The agricultural product sorting equipment with aflatoxin detection function according to claim 7, characterized in that: The nozzle (72) passes through the structural plate (71) and is threadedly connected to the structural plate (71).

9. The agricultural product sorting equipment with aflatoxin detection function according to any one of claims 1 to 5, 7, and 8, characterized in that: The first discharge trough (8) and the second discharge trough (9) correspond to a waste material cart (81) and a good material cart (82) respectively arranged on the ground.

10. The agricultural product sorting equipment with aflatoxin detection function according to claim 9, characterized in that: The waste material cart (81) and the good material cart (82) both include an open trough (83), and the open trough (83) is fixed on the trolley (84).

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