Cereal appearance quality detector

Abstract

The utility model discloses a grain appearance quality detector which is characterized in that a multi-grain-seed feeding control system is used for feeding materials to a transparent turntable; the grain multi-feature recognition system is used for detecting the appearance quality of the grain particles conveyed to the station detection points by the transparent turntable; the first cleaning assembly is used for cleaning grain particles belonging to imperfect grain categories on the lower transparent turntable, and the second cleaning assembly is used for cleaning grain particles belonging to perfect grain categories and floating dust impurities on the upper surface of the lower transparent turntable at the same time; the third cleaning assembly is used for cleaning floating dust impurities on the lower surface of the transparent rotating disc; and the weighing system is used for weighing the weights of the grains of the imperfect grain category cleaned by the first cleaning assembly and the grains of the perfect grain category cleaned by the second cleaning assembly respectively. The detection result is objective and accurate, the detection efficiency is high, and the device is suitable for appearance quality detection of various grain samples.

Description

Technical Field

[0001] The utility model relates to the technical field of grain detection instruments, in particular to a grain appearance quality detection instrument. Background Art

[0002] The results of grain quality inspection are the basic indicators for determining the grade and price of grain when it enters the warehouse, and are also the basis for the graded and classified storage of grain. Currently, grain quality inspection mainly relies on manual sampling inspection and manual weighing, and finally calculates the proportion data of each type of grain. This inspection method depends on human subjectivity, which makes the inspection results lack objectivity and are arbitrary. In addition, the sorting, classification and analysis time is too long, which is inefficient.

[0003] Some existing grain quality testing equipment cannot adapt to the quality testing of various grain samples. In addition, for large-grain grains such as corn and soybeans, especially corn, which has a polygonal three-dimensional shape, the shape of corn kernels is similar to a flat rectangular shape, and the features are distributed in multiple directions. A single camera or two cameras are difficult to fully collect and identify all surface features, resulting in inaccurate test results. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a grain appearance quality detector.

[0005] The utility model provides a grain appearance quality detector, which has objective and accurate detection results and high detection efficiency and is suitable for appearance quality detection of various grain samples, such as wheat, sorghum, soybean and corn.

[0006] The grain appearance quality detector according to the embodiment of the utility model comprises:

[0007] A turntable system, the turntable system comprising a transparent turntable;

[0008] A multi-grain feeding control system, which is used to convey the grains to the upper surface of the rotating transparent turntable in a single-layer and single-row order;

[0009] A grain multi-feature recognition system, which is used to detect the appearance quality of grain particles transported by the transparent turntable to the workstation detection point;

[0010] A cleaning system, the cleaning system comprising a first cleaning component, a second cleaning component and a third cleaning component; the first cleaning component is used to clean the grains belonging to the imperfect grain category on the transparent turntable, the second cleaning component is used to simultaneously clean the grains belonging to the perfect grain category and floating dust and debris on the upper surface of the transparent turntable; the third cleaning component is used to clean the floating dust and debris on the lower surface of the transparent turntable;

[0011] A weighing system, wherein the weighing system comprises weighing modules respectively matched with the first cleaning component and the second cleaning component, and respectively used to weigh the weight of the grains cleaned by the first cleaning component and the second cleaning component.

[0012] The working process of the grain appearance quality detector of the multi-grain feeding control system according to the embodiment of the utility model is as follows: start the grain appearance quality detector; feed the grain to be tested into the multi-grain feeding control system, and the multi-grain feeding control system transports the grain particles to the upper surface of the rotating transparent turntable in a single-layer and single-row order; the transparent turntable rotates to transport the grain particles to be tested to the grain multi-feature recognition system; the grain multi-feature recognition system triggers imaging, collects multiple surface images of grain particles passing through the workstation detection point, and transmits the collected images to the main control module to determine whether the grain particles belong to the imperfect grain category or the perfect grain category, thereby completing the appearance quality detection of the grain particles; if the grain particles belong to the imperfect grain category, the grain particles belonging to the imperfect category are rotated on the transparent turntable When the grain particles belong to the perfect grain category, when the grain particles belong to the perfect category and reach the corresponding station of the second cleaning component under the rotation of the transparent turntable, the second cleaning component cleans the grain particles belonging to the perfect category from the transparent turntable together with the floating and sinking debris on the upper surface of the transparent turntable, so that the grain particles belonging to the perfect category are cleaned into the corresponding weighing module; after all the grain particles to be tested are tested, the main control module collects the final data of the corresponding weighing module, outputs the sorting category and weight information, automatically calculates the proportion of various categories, and displays the test results.

[0013] In summary, the grain appearance quality detector of the embodiment of the utility model has the following advantages: the detection results are objective and accurate, the detection efficiency is high, and it is suitable for the appearance quality detection of various grain samples, such as wheat, sorghum, soybeans and corn.

[0014] In some embodiments, the multi-grain feeding control system includes a storage hopper, a distribution module, a discharge hopper and a vibration plate; wherein the storage hopper is used to store grains; the distribution module includes a distribution base, at least three distribution paddles, a rotating shaft and a driving unit; the top and bottom of the distribution base are respectively provided with a feed port and a discharge port, the distribution base is arranged below the storage hopper and the feed port is connected to the lower end of the storage hopper; the distribution base has a hollow cavity with a horizontally extending central axis, and the rotating shaft is concentrically arranged with the hollow cavity. Installed in the hollow cavity, at least three of the distributing paddles are located in the hollow cavity and are evenly distributed and fixed on the rotating shaft along the circumferential direction of the rotating shaft; the driving unit is arranged outside the distributing base and is connected to the rotating shaft to drive the rotating shaft to rotate; the discharging hopper is arranged below the distributing module, and the upper end of the discharging hopper is connected to the discharging port; the vibrating plate is arranged below the discharging hopper, for receiving the grains sliding down the discharging hopper, and conveying the grain particles to the transparent turntable in a single-layer and single-row discharge order.

[0015] In some embodiments, the multi-grain feeding control system also includes a detector, which is used to detect the amount of grain in the vibration plate to control the start and pause of the driving unit, ensuring that the amount of grain in the vibration plate is in an appropriate range, so that the grain particles in the vibration plate can be transported out along the spiral track on the side wall of the vibration plate in a single layer and single row order under the vibration of the vibration plate.

[0016] In some embodiments, the spiral track includes an ascending spiral track and a sinking spiral track connected to the end of the ascending spiral track, the end of the sinking spiral track is connected to a discharge channel, the discharge channel is lower than the end of the sinking spiral track, and the end of the discharge channel is located above the transparent turntable and close to the transparent turntable.

[0017] In some embodiments, the grain multi-feature identification system includes a first camera component and a second camera component; wherein, the first camera component is located on the upper side of the transparent turntable, the first camera component includes a plurality of first cameras, the plurality of first cameras are arranged obliquely along a circumferential interval around a vertical line of a workstation detection point, and the plurality of first cameras are all aimed at the workstation detection point, and the distances from the plurality of first cameras to the workstation detection point are the corresponding optimal focal lengths of the first cameras; the second camera component is located on the lower side of the transparent turntable, the second camera component includes a second camera, the second camera is vertically aimed at the workstation detection point, and the distance from the second camera to the workstation detection point is the optimal focal length of the second camera.

[0018] In some embodiments, the grain multi-feature recognition system also includes a second photoelectric sensor, which is used to trigger the first camera component and the second camera component when the grain particles on the transparent turntable are passing through the sensing position corresponding to the second photoelectric sensor and are about to reach the work station detection point, so that the first camera component and the second camera component can take pictures just when the grain particles from the sensing position corresponding to the second photoelectric sensor reach the work station detection point.

[0019] In some embodiments, the first cleaning component includes a first motor, a rotating paddle and a third photoelectric sensor; the rotating paddle is located above the transparent turntable and is mounted on the first motor, and the first motor is used to drive the rotating paddle to rotate from the radial inside to the radial outside of the transparent turntable, so that the rotating paddle can pick out grain particles belonging to the imperfect grain category from the transparent turntable; the photoelectric sensor is used to control the rotating paddle to stop at a predetermined position, so that the rotating paddle does not interfere with the path through which the grain passes.

[0020] In some embodiments, the second cleaning component includes a cleaning disc and a second motor; one end surface of the cleaning disc is a cleaning disc surface, the cleaning disc is arranged on the upper surface of the transparent turntable and the cleaning disc surface is in contact with the upper surface of the transparent turntable; the second motor is connected to the cleaning disc to drive the cleaning disc to rotate around the axis of the cleaning disc.

[0021] In some embodiments, the third cleaning component includes a cleaning wheel and a third motor; the circumferential surface of the cleaning wheel is a cleaning wheel surface, and the cleaning wheel surface is tangent to the lower surface of the transparent turntable; the third motor is connected to the cleaning wheel to drive the cleaning wheel to rotate around the axis of the cleaning wheel.

[0022] In some embodiments, the weighing module includes a weighing hopper, a baffle plate, an elastic reset member, a weighing sensor and an automatic unloading module; the weighing hopper is not in contact with the corresponding first cleaning component or the corresponding second cleaning component, and is used to receive the grain particles selected by the corresponding first cleaning component or the corresponding second cleaning component; one end of the baffle plate is rotatably connected to one side of the bottom outlet of the weighing hopper; there are two elastic reset members, which are arranged on both sides of the other end of the baffle plate, the upper ends of the two elastic reset members are connected to the weighing hopper, and the lower ends of the two elastic reset members are connected to both sides of the other end of the baffle plate, so that the baffle plate closes the bottom outlet; the weighing hopper is installed on the weighing sensor; the automatic unloading module is used to separate from the baffle plate when the baffle plate closes the bottom outlet, and to contact and push the baffle plate when the grain in the weighing hopper needs to be discharged, so that the grain in the weighing hopper falls from the bottom outlet.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a three-dimensional schematic diagram of one position of the grain appearance quality detector of the utility model;

[0026] Figure 2 It is a three-dimensional schematic diagram of another aspect of the grain appearance quality detector of the utility model;

[0027] Figure 3 It is a three-dimensional schematic diagram of another aspect of the grain appearance quality detector of the utility model;

[0028] Figure 4 It is a three-dimensional schematic diagram of another aspect of the grain appearance quality detector of the utility model;

[0029] Figure 5 It is a side view of a multi-grain feeding control system in the grain appearance quality detector of the utility model;

[0030] Figure 6 yes Figure 5 A three-dimensional diagram of the multi-grain feeding control system;

[0031] Figure 7It is a schematic diagram of a material distribution module of a multi-grain feeding control system in a grain appearance quality detector of the utility model;

[0032] Figure 8 It is a schematic diagram of a grain multi-feature recognition system in a grain appearance quality detector of the utility model;

[0033] Fig. 9 It is a schematic diagram of the first cleaning component in the grain appearance quality detector of the utility model;

[0034] Fig.10 It is a schematic diagram of the second cleaning component in the grain appearance quality detector of the utility model;

[0035] Fig.11 It is a schematic diagram of a cleaning plate of a second cleaning component in the grain appearance quality detector of the utility model;

[0036] Fig.12 It is a schematic diagram of a cleaning wheel of a second cleaning component in the grain appearance quality detector of the utility model;

[0037] Fig.13 It is a schematic diagram of a weighing module in a grain appearance quality detector of the utility model in a closed state;

[0038] Fig.14 It is a schematic diagram of the weighing module in the grain appearance quality detector of the utility model in an open state;

[0039] Fig.15 It is a schematic diagram of the weighing part of the weighing module in the grain appearance quality detector of the utility model;

[0040] Fig.16 It is a schematic diagram of an automatic unloading module of a weighing module in a grain appearance quality detector of the utility model;

[0041] Fig.17 It is a schematic diagram of a cleaning system, a weighing system and a material box in a grain appearance quality detector of the utility model.

[0042] Reference numerals:

[0043] Grain appearance quality detector 1000; turntable system 1; transparent turntable 101; multi-grain feeding control system 2; storage hopper 201; material distribution module 202; material distribution base 2021; material distribution paddle 2022; rotating shaft 2023; driving unit 2024; detector 2025; discharging hopper 203; vibration plate 204; spiral track 2041; ascending spiral track 20411; descending spiral track 20412; discharging channel 20413; grain multi-feature recognition system 3; first camera component 301; first camera 3011; second camera component 302; second camera 3021; ​​second photoelectric sensor 303; cleaning system 4; first cleaning component 401 ; first motor 4011; rotating paddle 4012; third photoelectric sensor 4013; first collecting hopper 4014; second cleaning assembly 402; second motor 4021; cleaning disk 4022; cleaning disk surface 40221; second collecting hopper 4023; third cleaning assembly 403; third motor 4031; cleaning wheel 4032; cleaning wheel surface 40321; weighing system 5; weighing module 501; weighing hopper 5011; baffle plate 5012; pressing part 50121; elastic reset member 5013; weighing sensor 5014; automatic unloading module 5015; linear module 50151; connecting frame 50152; rolling bearing 50153; material box 6. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] Combine the following Figures 1 to 17 To describe the grain appearance quality detector 1000 and the detection method according to an embodiment of the present utility model.

[0046] like Figures 1 to 17 As shown, the grain appearance quality detector 1000 according to the embodiment of the utility model includes a turntable system 1, a multi-grain feeding control system 2, a grain multi-feature recognition system 3, a cleaning system 4 and a weighing system 5.

[0047] Among them, the turntable system 1 includes a transparent turntable 101 driven by a turntable driving assembly. The transparent turntable 101 is used to place grains whose appearance quality is to be tested. The turntable driving assembly drives the transparent turntable 101 to rotate, and the grains on the transparent turntable 101 can rotate with the transparent turntable 101.

[0048] The multi-grain feeding control system 2 is used to convey the grains to the upper surface of the rotating transparent turntable 101 in a single-layer and single-row order. That is, the multi-grain feeding control system 2 delivers the grain samples to be tested to the transparent turntable 101 in a single row, so that the grains on the rotating transparent turntable 101 are also arranged in a single row without stacking, which is conducive to the grain multi-feature recognition system 3 to recognize multiple surface images of grains one by one. The multi-grain feeding control system 2 is suitable for single-row and single-column feeding of grains of different kinds, such as wheat, sorghum, soybeans and corn.

[0049] The grain multi-feature recognition system 3 is used to detect the appearance quality of grain grains transported to the workstation detection point by the transparent turntable 101. Specifically, when a single grain grain on the transparent turntable 101 rotates to the workstation detection point with the transparent turntable 101, the grain multi-feature recognition system 3 can shoot multiple faces of the single grain grain and obtain images of multiple faces. For example, corn grains have roughly six faces, and the grain multi-feature recognition system 3 can shoot the six faces of a single corn grain and obtain images of the six faces. In this way, the main control module can objectively and accurately determine whether the grain grain belongs to the imperfect grain category or the perfect grain category based on the images of the multiple faces of the grain grain, thereby completing the detection of the appearance quality of the grain grain.

[0050] The cleaning system 4 includes a first cleaning component 401, a second cleaning component 402 and a third cleaning component 403; the grain multi-feature recognition system 3, the first cleaning component 401 and the second cleaning component 402 can be arranged in sequence according to the path through which the grain particles on the transparent turntable 101 pass, the first cleaning component 401 is used to clean up the grain particles belonging to the imperfect grain category on the transparent turntable 101, and the second cleaning component 402 is used to clean up the grain particles belonging to the perfect grain category and floating dust and debris on the upper surface of the transparent turntable 101 at the same time; the third cleaning component 403 is used to clean up the floating dust and debris on the lower surface of the transparent turntable 101. In detail, the grains on the transparent turntable 101 first pass through the workstation detection point of the grain multi-feature recognition system 3, and the grain multi-feature recognition system 3 takes a comprehensive picture of the grains when passing through the workstation detection point, obtains multiple surface images of the grains and sends them to the main control module, and the main control module determines in real time whether the grains belong to the imperfect grain category or the perfect grain category; when the grains follow the transparent turntable 101 from the workstation detection point to the workstation corresponding to the first cleaning component 401, if the grains belong to the imperfect grain category, the first cleaning component 401 Component 401 sweeps the grains of imperfect grain category off the transparent turntable 101. If the grains belong to the perfect grain category, the first cleaning component 401 does not clean the grains, and the grains are still left on the transparent turntable 101 and continue to rotate with the transparent turntable 101. It can be understood that the imperfect grain categories of grains include worm-eaten grains, diseased grains, sprouted grains, moldy grains, damaged grains, frostbitten grains, baked grains or immature grains, etc. The first cleaning component 401 can be flexibly set with a number of imperfect grain categories according to the needs of sorting. When the grains come from the station corresponding to the first cleaning component 401 to the station corresponding to the second cleaning component 402, the second cleaning component 402 cleans the grains from the transparent turntable 101, and at the same time sweeps off the dust and impurities on the transparent turntable 101, and cleans the upper surface of the transparent turntable 101, so that the cleaned part of the upper surface of the transparent turntable 101 is transferred to the exit of the multi-grain feeding control system 2 to receive the grains sent by the multi-grain feeding control system 2. The third cleaning component 403 can be arranged below the transparent turntable 101 to clean the dust on the lower surface of the transparent turntable 101. Thus, by setting the first cleaning component 401 and the second cleaning component 402, the grains can be sorted; the corresponding parts of the upper and lower surfaces of the transparent turntable 101 are cleaned by the second cleaning component 402 and the third cleaning component 403, and when the cleaned parts of the upper and lower surfaces of the transparent turntable 101 are rotated to the outlet feeding position of the multi-grain feeding control system 2, the grains can be arranged at the cleaned parts of the upper and lower surfaces of the transparent turntable 101, and transported to the workstation detection point for photography by the rotating transparent turntable 101, avoiding the influence of the original floating dust and debris on the photography effect, making the photographed grain image clear, and greatly improving the accuracy of the detection result.

[0051] The weighing system 5 includes a weighing module 501 that is respectively matched with the first cleaning component 401 and the second cleaning component 402, and is used to weigh the weight of the grains cleaned by the first cleaning component 401 and the second cleaning component 402. Specifically, the weighing module 501 that is matched with the first cleaning component 401 is used to receive and weigh the weight of the grains of the imperfect grain category cleaned by the first cleaning component 401; the weighing module 501 that is matched with the second cleaning component 402 is used to receive and weigh the weight of the grains of the perfect grain category cleaned by the second cleaning component 402. By setting the weighing system 5, the final weight of the grain particles of the corresponding category can be weighed, so that the main control module outputs the sorting category and weight information, automatically calculates the proportion of various categories, and displays the detection results.

[0052] According to the grain appearance quality detector 1000 of the embodiment of the utility model, the working process is: start the grain appearance quality detector 1000; put the grain to be detected into the multi-grain feeding control system 2, and the multi-grain feeding control system 2 transports the grain particles to the upper surface of the rotating transparent turntable 101 in a single-layer and single-row order; the transparent turntable 101 rotates to transport the grain particles to be detected to the grain multi-feature recognition system 3; the grain multi-feature recognition system 3 triggers imaging, collects multiple surface images of the grain particles passing through the workstation detection point, and transmits the collected images to the main control module to determine whether the grain particles belong to the imperfect grain category or the perfect grain category, thereby completing the appearance quality detection of the grain particles; if the grain particles belong to the imperfect grain category, the grain particles belonging to the imperfect category reach the first cleaning component 4 under the rotation of the transparent turntable 101 01, the first cleaning component 401 cleans the imperfect grains from the transparent turntable 101, so that the imperfect grains are cleaned and enter the corresponding weighing module 501; if the grains belong to the perfect grain category, when the perfect grains reach the corresponding station of the second cleaning component 402 under the rotation of the transparent turntable 101, the second cleaning component 402 cleans the perfect grains from the transparent turntable 101 together with the floating and sinking debris on the upper surface of the transparent turntable 101, so that the perfect grains are cleaned and enter the corresponding weighing module 501; after all the grains to be tested are tested, the main control module collects the final data of the corresponding weighing module 501, outputs the sorting category and weight information, automatically calculates the proportion of various categories, and displays the test results.

[0053] In summary, the grain appearance quality detector 1000 of the embodiment of the utility model has the following advantages: the detection results are objective and accurate, the detection efficiency is high, and it is suitable for the appearance quality detection of various grain samples, such as wheat, sorghum, soybeans and corn.

[0054] In some embodiments, Figure 5 and Figure 6 As shown, the multi-grain feeding control system 2 includes a storage hopper 201, a material distribution module 202, a discharge hopper 203 and a vibration plate 204; the material distribution module 202 includes a material distribution base 2021, at least three material distribution paddles 2022, a rotating shaft 2023 and a driving unit 2024; the top and bottom of the material distribution base 2021 are respectively provided with a feed port and a discharge port, the material distribution base 2021 is arranged below the storage hopper 201 and the feed port is connected to the lower end of the storage hopper 201; the material distribution base 2021 has a hollow cavity with a horizontally extending central axis, and the rotating shaft 2023 is concentrically arranged with the hollow cavity. Installed in the hollow cavity, at least three dividing paddles 2022 are located in the hollow cavity and are evenly distributed and fixed on the rotating shaft 2023 along the circumferential direction of the rotating shaft 2023; the driving unit 2024 is arranged outside the dividing base 2021 and is connected to the rotating shaft 2023 to drive the rotating shaft 2023 to rotate; the discharge hopper 203 is arranged below the dividing module 202, and the upper end of the discharge hopper 203 is connected to the discharge port; the vibration plate 204 is arranged below the discharge hopper 203, for receiving the grains sliding down the discharge hopper 203, and conveying the grain particles to the transparent turntable 101 in a single-layer and single-row discharge order.

[0055] Specifically, the storage hopper 201 is used to store grains. The grains stored in the storage hopper 201 are generally grains to be tested, and the grains to be tested can be wheat, sorghum, soybeans, corn, etc. When testing is required, the grains to be tested are added to the storage hopper 201. The storage hopper 201 can be made larger according to actual use requirements, and can store a larger amount of grains to be tested, thereby reducing the number of times grains are added and improving efficiency.

[0056] The material distribution module 202 includes a material distribution base 2021, at least three material distribution paddles 2022, a rotating shaft 2023 and a driving unit 2024. The top and bottom of the material distribution base 2021 are respectively provided with a feed inlet and a discharge inlet, and the material distribution base 2021 is arranged below the storage hopper 201 and the feed inlet is connected to the lower end of the storage hopper 201, so that the grains stored in the storage hopper 201 can directly and automatically fall into the material distribution base 2021 from the lower end of the storage hopper 201 through the feed inlet. The material distribution base 2021 has a hollow cavity with a central axis extending horizontally, and the rotating shaft 2023 is installed in the hollow cavity concentrically with the hollow cavity, that is, the rotating shaft 2023 is coaxial with the hollow cavity, and at least three material distribution paddles 2022 are located in the hollow cavity and are evenly distributed and fixed on the rotating shaft 2023 along the circumferential direction of the rotating shaft 2023. In this way, a fan-shaped space is formed between two adjacent material distribution paddles 2022, and at least three material distribution paddles 2022 can form at least three fan-shaped spaces correspondingly; since at least three material distribution paddles 2022 are arranged along the rotating shaft The circumferential direction of the shaft 2023 is uniformly distributed, so at least three fan-shaped spaces are basically the same, and when at least three material-dividing paddles 2022 follow the rotation shaft 2023 to rotate at any angle, they can block the feed port and the discharge port of the material-dividing base 2021, that is, the grains cannot fall directly vertically between the feed port and the discharge port, and can only fall from the feed port into the fan-shaped space with the opening facing upward or the opening part facing upward. As the rotation shaft 2023 rotates, the opening of the fan-shaped space receiving the grains rotates to the discharge port, and the grains flow out of the discharge port by gravity. The driving unit 2024 is arranged outside the material-dividing base 2021 and is connected to the rotation shaft 2023 to drive the rotation shaft 2023 to rotate, so that at least three material-dividing paddles 2022 can follow the rotation shaft 2023 to rotate synchronously. By driving the rotation shaft 2023 by the driving unit 2024, the grains can be input from the feed port to the discharge port for discharge. Thus, the material distribution module 202 can accurately control the material discharging quantity and material discharging speed, and can realize intermittent feeding. According to the grain size and the feeding control accuracy, the number of material distribution paddles 2022 can be increased, which is equivalent to reducing the minimum measurement division value, and the measurement is more accurate.

[0057] The discharge hopper 203 is arranged below the material distribution module 202 , and the upper end of the discharge hopper 203 is connected to the discharge port of the material distribution base 2021 ; this ensures that the grains discharged from the material distribution module 202 can slide down along the discharge hopper 203 .

[0058] The vibration plate 204 is arranged below the discharge hopper 203, and is used to receive the grains sliding down the discharge hopper 203, and convey the grain particles to the transparent turntable 101 in a single-layer single-row discharge order. It should be noted that the inner wall of the vibration plate 204 is provided with a spiral track 2041. The vibration plate 204 vibrates and disperses the grain particles in the vibration plate 204 under the conditions of suitable vibration frequency and voltage, so that the grain particles are fed along the spiral track 2041 in a single layer, and the grain particles are conveyed to the transparent turntable 101 in a single-layer single-row discharge order to improve the detection effect. Since the above-mentioned material distribution module 202 can accurately control the discharge quantity and discharge speed, and can realize intermittent feeding, it can ensure that the amount of grain in the vibration plate 204 is always in the optimal detection amount or the optimal detection range, and ensure that the grain particles on the spiral track 2041 are always arranged in a single layer.

[0059] The working process of the multi-grain feeding control system 2 is as follows: add the grains to be tested into the storage hopper 201, and since at least three material dividing paddles 2022 in the material dividing base 2021 can block the feed port and the discharge port of the material dividing base 2021 when they are at any angle, the grains remain in the storage hopper 201 and can fall from the feed port into the fan-shaped space with the opening facing upward or the opening partially facing upward, and cannot fall directly vertically between the feed port and the discharge port. As the driving unit 2024 drives the material dividing paddles 2022 to rotate, the opening of the fan-shaped space receiving the grains rotates to the discharge port, and the grains flow out of the discharge port by gravity, and slide into the vibration plate 204 through the discharge hopper 203. By controlling the start and pause of the driving unit 2024, it can be ensured that the amount of grain in the vibration disk 204 is always within the optimal detection amount or the optimal detection range. Under the appropriate vibration frequency and voltage conditions, the grain particles are arranged in a single layer on the spiral track 2041, and the grain particles are introduced into the transparent turntable 101 in a single-layer and single-row arrangement order.

[0060] Therefore, the multi-grain feeding control system 2 can store a large amount of grains to be tested by setting the storage hopper 201, reduce the number of times of adding grains, and improve efficiency; by setting the material distribution module 202, on the one hand, it can actively close the outlet at the lower end of the storage hopper 201 to avoid the phenomenon of leakage under the abnormal condition of the multi-grain feeding control system 2, and on the other hand, it can accurately control the discharge quantity and discharge speed, and can realize intermittent feeding, ensuring that the amount of grains in the vibration disk 204 is always in the optimal detection amount or the optimal detection range. The vibration disk 204 vibrates under the appropriate vibration frequency and voltage conditions, so that the grain particles are arranged in a single layer on the spiral track 2041, and the grain particles are introduced into the transparent turntable 101 according to the single-layer single-row discharge order. Therefore, the feeding control system realizes the single storage of a large amount of grain samples to be tested, can realize accurate feeding according to the best feeding effect, can effectively improve the detection effect, and is suitable for a variety of grains such as corn, soybeans, wheat, etc. The multi-grain feeding control system 2 has low cost and high work efficiency.

[0061] In some embodiments, Figure 5 As shown, the multi-grain feeding control system 2 also includes a detector 2025, which can be a first photoelectric sensor or a distance sensor; the detector 2025 or the distance sensor is used to detect the amount of grain in the vibration plate 204, so as to control the start and pause of the driving unit 2024, and ensure that the amount of grain in the vibration plate 204 is in a suitable range, so that the grain particles in the vibration plate 204 can be transported out along the spiral track 2041 on the side wall of the vibration plate 204 in a single-layer and single-row order under the vibration of the vibration plate 204. In other words, the detector 2025 can accurately detect the amount of grain in the vibration plate 204, and the photoelectric sensor cooperates with the driving unit 2024 to achieve closed-loop control to adjust the amount of grain in the vibration plate 204 to be within the optimal detection amount range, which is conducive to making the grain particles in the vibration plate 204 distributed in a single layer on the spiral track 2041 under the vibration of the vibration plate 204.

[0062] Specifically, the detector 2025 detects the amount of grain in the vibration plate 204. When there is no grain or less grain in the vibration plate 204 (a material threshold a can be set in advance according to the actual situation, and the material is less than a at this time), the detector 2025 is triggered and transmits a signal to the drive unit 2024 (such as the motor of the drive unit 2024) of the material distribution module 202, so the drive unit 2024 starts to drive the material distribution paddle 2022 to rotate. The grain in the material distribution module 202 is gradually discharged into the vibration plate 204. When the material on the vibration plate 204 gradually increases and reaches the material threshold a, the detector 2025 stops sending information, the drive unit 2024 pauses, and the material distribution module 202 stops unloading.

[0063] The vibration plate 204 is in working state throughout the whole process and has nothing to do with the signal of the detector 2025. The materials in the vibration plate 204 are sent out in a single layer and a single row. When the amount of grain is less than a, the detector 2025 is triggered, and the material distribution module 202 starts to add grain to the vibration plate 204 until the amount of grain in the vibration plate 204 reaches a.

[0064] Therefore, by setting the start and stop thresholds of the detector 2025, the amount of grain in the vibration plate 204 can be controlled to achieve the best vibration feeding state.

[0065] In some embodiments, the detector 2025 is installed on the lower end of the discharge hopper 203. Therefore, the detector 2025 is easy to install and can accurately detect the amount of grain in the vibration plate 204.

[0066] In some embodiments, at least three of the material dividing paddles 2022 are flexible material dividing paddles, that is, all the material dividing paddles 2022 are flexible material dividing paddles. The flexible material dividing paddles themselves have a certain degree of flexibility. When there is material clamped between the flexible material dividing paddles and the material dividing base 2021 during the rotation process, the rotating shaft 2023 will continue to rotate due to the large torque, so the flexible material dividing paddles will bend and deform to avoid squeezing the sample and causing damage to the grain particles to be tested.

[0067] In some embodiments, Figure 7 As shown, at least three radial outer edges of the dividing paddles 2022 are provided with sawtooth structures, which can further improve the flexibility of the dividing paddles 2022 and protect the grain samples to be tested. Specifically, the size of the sawtooth structure can be designed according to the size of the grain particles, which can further improve the flexibility of the dividing paddles 2022 and protect the grains to be tested.

[0068] In some embodiments, Figure 6 As shown, the spiral track 2041 includes an ascending spiral track 20411 and a sinking spiral track 20412 connected to the end of the ascending spiral track 20411, and the end of the sinking spiral track 20412 is connected to a discharge channel 20413, and the discharge channel 20413 is lower than the end of the sinking spiral track 20412, and the end of the discharge channel 20413 is located above the transparent turntable 101 and close to the transparent turntable 101. By setting the sinking spiral track 20412, when the grain particles fall from the end of the ascending spiral track 20411 into the sinking spiral track 20412, it is further ensured that the grain particles are arranged in a single row, and it is also helpful to reduce the height of the outlet of the discharge channel 20413, so that the outlet of the discharge channel 20413 is closer to the transparent turntable 101, and prevent the grain particles from bouncing away when falling on the transparent turntable 101, and deviating the grain path track on the transparent turntable 101.

[0069] In some embodiments, Figure 8 As shown, the grain multi-feature recognition system 3 includes a first camera component 301 and a second camera component 302; wherein, the first camera component 301 is located on the upper side of the transparent turntable 101, and the first camera component 301 includes a plurality of first cameras 3011, which are arranged at intervals along the circumference around the vertical line of the station detection point, and the plurality of first cameras 3011 are all aimed at the station detection point, and the distances from the plurality of first cameras 3011 to the station detection point are respectively the best focal lengths of the corresponding first cameras 3011; that is, the first camera component 301 can clearly photograph the surfaces other than the bottom surface of the grain grain at the station detection point from the top of the transparent turntable 101 from multiple different angles, and can capture the appearance features of the remaining surfaces other than the bottom surface of the grain grain, which is conducive to improving the accuracy of the grain grain appearance detection results. The plurality of first cameras 3011 recognize the same grain grain at the station detection point, that is, photograph the grain sample grain at the same time, which can reduce the complex process of later image matching and save computing resources. The second camera assembly 302 is located at the lower side of the transparent turntable 101. The second camera assembly 302 includes a second camera 3021. The second camera 3021 is vertically aligned with the station detection point. The distance from the second camera 3021 to the station detection point is the best focal length of the second camera 3021. In other words, the second camera 3021 can clearly capture the bottom surface image of the grain grains that arrive at the station detection point, and can capture the appearance characteristics of the bottom surface of the grain grains. Therefore, the images captured by the second camera 3021 and the images captured by the multiple first cameras 3011 can be processed by the post-processing algorithm to obtain all the epidermal characteristics of the grain grains, and then the appearance quality of the grain sample grains can be judged based on all the epidermal characteristics of the grain sample grains, which greatly improves the appearance quality test results of the grain samples, especially the large grain grain samples such as corn and soybeans; and can reduce the complex process of identifying all the epidermal characteristics of the grain sample grains such as the post-processing image matching, saving computing resources.

[0070] In some embodiments, Figure 1 and Figure 2As shown, the grain multi-feature recognition system 3 also includes a second photoelectric sensor 303. The second photoelectric sensor 303 is used to trigger a camera component and a second camera component 302 when the grain particles on the transparent turntable 101 are passing through the sensing position corresponding to the second photoelectric sensor 303 and are about to reach the work station detection point, so that the first camera component 301 and the second camera component 302 can take pictures of the grain particles coming from the sensing position corresponding to the second photoelectric sensor 303 just when they reach the work station detection point. It can be understood that since there is a time interval between the time point when the second photoelectric sensor 303 triggers the first camera component 301 and the second camera component 302 and the time point when the first camera component 301 and the second camera component 302 take photos, that is, the photo taking actions of the first camera component 301 and the second camera component 302 have a lag delay relative to the triggering of the second photoelectric sensor 303, there is a certain distance between the sensing position corresponding to the second photoelectric sensor 303 and the workstation detection point of the first camera component 301 and the second camera component 302, and the time required for the grain particles to reach the workstation detection point from the sensing position is exactly equal to the time interval between the time point when the second photoelectric sensor 303 is triggered and the time point when the first camera component 301 and the second camera component 302 take photos, in this way, the first camera component 301 and the second camera component 302 can take photos of the same grain at the same time to obtain images of multiple sides of the grain particles.

[0071] The working process of the grain multi-feature recognition system 3 is as follows: when the grain particles on the transparent turntable 101 rotate with the transparent turntable 101, they first pass through the sensing position corresponding to the second photoelectric sensor 303, at which time the second photoelectric sensor 303 senses the grain particles and triggers the first camera component 301 and the second camera component 302; after that, they pass through the workstation detection point, at which time, the multiple first cameras 3011 take clear images of the remaining surfaces except the bottom surface of the grain particles at the workstation detection point from multiple different angles from above the transparent turntable 101, and at the same time, the second camera 3021 takes clear images of the bottom surface of the grain particles from below the transparent turntable 101; the images taken by the multiple first cameras 3011 and the one second camera 3021 can obtain all the epidermal features of the grain sample particles through post-processing with an algorithm, and then judge the appearance quality of the grain sample particles according to all the epidermal features of the grain sample particles, which greatly improves the appearance quality detection results of the grain samples, especially the large-grain grain samples such as corn and soybeans; and can reduce the complex process of identifying all the epidermal features of the grain sample particles such as post-image matching, saving computing resources.

[0072] In some embodiments, the number of the plurality of first cameras 3011 is 2 to 4. That is, there may be 2, 3 or 4 first cameras 3011, so that when detecting large grains of cereals, the appearance detection result of the large grains of cereals can be greatly improved, and it is applicable to the appearance quality detection of large grains of cereals such as corn and soybeans, and also to the appearance quality detection of small grains of cereals such as wheat, sorghum, and rice.

[0073] In particular, when the grain sample particles are corn, since corn is a flat rectangular three-dimensional structure, in order to fully capture the corn epidermis features, it is necessary to capture the features of the six sides of the corn. Ideally, a picture of each of the six sides of the corn needs to be captured for algorithm recognition. However, after many experiments, it was found that by setting five cameras in the grain multi-feature recognition system 3, that is, four first cameras 3011 and one second camera 3021, all epidermis features of the corn grains can be captured.

[0074] When the grain sample particles are soybeans, since soybeans are large particles and have a nearly circular three-dimensional shape, setting three first cameras 3011 or setting four first cameras 3011 can capture all the surface characteristics of the soybeans.

[0075] When the grain sample particles are wheat, sorghum, and rice, since wheat, sorghum, and rice all present small oval three-dimensional features, setting two first cameras 3011 can collect all the surface features of the grain sample particles.

[0076] In summary, the grain multi-feature recognition system 3 is suitable for the appearance quality detection of various grain particles, such as corn, soybean, wheat, rice, sorghum and other grain particles in different forms, and is easy to be integrated into different grain detection equipment and grain automatic detection lines.

[0077] In some embodiments, multiple first cameras 3011 are located at the same height, and the distances from multiple first cameras 3011 to the work station detection point are the same, which is convenient for installation and focusing, and facilitates later stitching of photos, reducing complex processes such as later image matching.

[0078] In some embodiments, multiple first cameras 3011 are evenly spaced along the circumferential direction, and the image coverage angle is adaptively increased according to the shape characteristics of the grain sample particles, so that more features of the grain sample particles can be captured.

[0079] In some embodiments, Fig. 9As shown, the first cleaning component 401 includes a first motor 4011, a rotating paddle 4012 and a third photoelectric sensor 4013; the rotating paddle 4012 is located above the transparent turntable 101 and is installed on the first motor 4011, and the first motor 4011 is used to drive the rotating paddle 4012 to rotate from the radial inner side to the radial outer side of the transparent turntable 101, so that the rotating paddle 4012 selects grains belonging to the imperfect grain category from the transparent turntable 101; the third photoelectric sensor 4013 is used to control the rotating paddle 4012 to stop at a predetermined position, so that the rotating paddle 4012 does not interfere with the path of grain passing. The first cleaning component 401 has a simple and compact structure and can effectively select grains belonging to the imperfect grain category from the transparent turntable 101. It can be understood that the imperfect grains of cereals include worm-eaten grains, diseased grains, sprouted grains, moldy grains, broken grains, frostbitten grains, baked grains or unripe grains, and the first cleaning component 401 can be flexibly provided with a number of imperfect grain categories that need to be sorted.

[0080] In some embodiments, the third photoelectric sensor 4013 is installed on the first motor 4011, which is easy to install and has a simple structure.

[0081] In some embodiments, the first cleaning component 401 further includes a first collecting hopper 4014; the first collecting hopper 4014 has a first collecting hopper inlet and a first collecting hopper outlet, and the first collecting hopper inlet cooperates with the outer edge of one side of the transparent turntable 101 and the rotating paddle 4012. In this way, when the rotating paddle 4012 selects the imperfect grains from the transparent turntable 101, the grains pass through the first collecting hopper 4014 and enter the weighing module 501. That is, by providing the first collecting hopper 4014, it is possible to prevent the grains from being ejected and unable to enter the weighing module 501. Since the first collecting hopper 4014 does not contact the weighing module 501, it does not affect the weighing accuracy of the weighing module 501.

[0082] In some embodiments, Fig.10 and Fig.11As shown, the second cleaning component 402 includes a cleaning disc 4022 and a second motor 4021; one end surface of the cleaning disc 4022 is a cleaning disc surface 40221, and the cleaning disc 4022 is arranged on the upper surface of the transparent turntable 101 and the cleaning disc surface 40221 is in contact with the upper surface of the transparent turntable 101; the second motor 4021 is connected to the cleaning disc 4022 to drive the cleaning disc 4022 to rotate around the axis of the cleaning disc 4022. In this way, when the second motor 4021 drives the cleaning disc 4022 to rotate, the rotating cleaning disc 4022 can clean the grain particles of the perfect grain category and the floating dust and debris that arrive at the workstation corresponding to the second cleaning component 402 from the upper surface of the transparent turntable 101, so that the upper surface of the transparent turntable 101 at the workstation corresponding to the second cleaning component 402 is cleaned, and the cleaning effect is good. As above, the second cleaning component 402 has a simple structure and is easy to implement.

[0083] In some embodiments, the cleaning disk surface 40221 is a flexible disk surface, which has a better cleaning effect and will not damage the upper surface of the transparent turntable 101.

[0084] In some embodiments, the cleaning disk surface 40221 is made of soft hair or sponge, which has a better cleaning effect and does not damage the upper surface of the transparent turntable 101. The soft hair can be wool or other fiber soft hair.

[0085] In some embodiments, the second motor 4021 is located above the cleaning disk 4022, the second motor 4021 is coaxially connected to the cleaning disk surface 40221, and the axis of the second motor 4021 is perpendicular to the transparent turntable 101. In this way, the arrangement is simple and reasonable.

[0086] In some embodiments, the second cleaning component 402 further includes a second collecting hopper 4023; the second collecting hopper 4023 has a second collecting hopper inlet and a second collecting hopper outlet, and the second collecting hopper inlet cooperates with the outer edge of one side of the transparent turntable 101 and the cleaning disc 4022. In this way, the grains of the perfect grain category cleaned from the transparent turntable 101 by the cleaning disc 4022 enter the corresponding weighing module 501 through the second collecting hopper 4023, that is, by providing the second collecting hopper 4023, it is possible to prevent the grains from being ejected and unable to enter the corresponding weighing module 501. Since the second collecting hopper 4023 does not contact the corresponding weighing module 501, it does not affect the weighing accuracy of the corresponding weighing module 501.

[0087] In some embodiments, Fig.10 and Fig.12As shown, the third cleaning assembly 403 includes a cleaning wheel 4032 and a third motor 4031; the circumferential surface of the cleaning wheel 4032 is a cleaning wheel surface 40321, and the cleaning wheel surface 40321 is tangent to the lower surface of the transparent turntable 101; the third motor 4031 is connected to the cleaning wheel 4032 to drive the cleaning wheel 4032 to rotate around the axis of the cleaning wheel 4032. In this way, when the third motor 4031 drives the cleaning wheel 4032 to rotate, the rotating cleaning wheel 4032 can clean up the floating and sinking debris on the lower surface of the transparent turntable 101, so that the lower surface of the transparent turntable 101 at the position corresponding to the third cleaning assembly 403 is cleaned, and the cleaning effect is good. As above, the third cleaning assembly 403 has a simple structure and is easy to implement.

[0088] In some embodiments, the cleaning wheel surface 40321 is a flexible cleaning wheel surface 40321. The flexible cleaning wheel surface 40321 has a better cleaning effect and will not damage the lower surface of the transparent turntable 101.

[0089] In some embodiments, the cleaning wheel surface 40321 is made of soft hair or sponge, which has a better cleaning effect and does not damage the lower surface of the transparent turntable 101. The soft hair can be wool or other fiber soft hair.

[0090] In some embodiments, the third motor 4031 is located below the transparent turntable 101, the third motor 4031 is coaxially connected to the cleaning wheel 4032, and the axis of the third motor 4031 is parallel to the transparent turntable 101. This arrangement is simple and reasonable.

[0091] In some embodiments, Figures 13 to 17As shown, the weighing module 501 includes a weighing hopper 5011, a baffle plate 5012, an elastic reset member 5013, a weighing sensor 5014 and an automatic unloading module 5015; the weighing hopper 5011 is not in contact with the corresponding first cleaning component 401 or the corresponding second cleaning component 402, and is used to receive the grain particles selected by the corresponding first cleaning component 401 or the corresponding second cleaning component 402; one end of the baffle plate 5012 is rotatably connected to one side of the bottom outlet of the weighing hopper 5011; there are two elastic reset members 5013, and the two elastic reset members 5013 are arranged on the other end of the baffle plate 5012. At both sides of the end, the upper ends of the two elastic reset members 5013 are connected to the weighing hopper 5011, and the lower ends of the two elastic reset members 5013 are connected to the two sides of the other end of the baffle plate 5012, so that the baffle plate 5012 closes the bottom outlet; the weighing hopper 5011 is installed on the weighing sensor 5014; the automatic unloading module 5015 is used to separate from the baffle plate 5012 when the baffle plate 5012 closes the bottom outlet, and to contact with the baffle plate 5012 and push the baffle plate 5012 away when the grains in the weighing hopper 5011 need to be discharged, so that the grains in the weighing hopper 5011 fall from the bottom outlet. It is understandable that when the weighing hopper 5011 receives the grains from the first cleaning component 401, the bottom outlet of the weighing hopper 5011 is closed by the elastic reset member 5013 acting on the baffle plate 5012, so that the grains are accumulated in the weighing hopper 5011 and weighed in real time by the weighing sensor 5014; when the grain samples are sorted, the weighing sensor 5014 can display the final weight of the grains of the corresponding category selected, so as to output the sorting category and weight information, automatically calculate the proportion of various categories, and display the test results. When the weighing is completed, the automatic unloading module 5015 presses down one end of the baffle plate 5012 containing the elastic reset member 5013, and when the pressure exceeds the tension of the elastic reset member 5013, the baffle plate 5012 opens downward, and the grains in the weighing hopper 5011 flow out, and when the pressure is removed, the baffle plate 5012 is automatically restored by the tension of the elastic reset member 5013. Since the baffle plate 5012 and the elastic reset member 5013 are fixed on the weighing sensor 5014 through the weighing hopper 5011, and since the weighing hopper 5011 is not in contact with the corresponding first cleaning component 401 and the corresponding automatic unloading module 5015, or the weighing hopper 5011 is not in contact with the corresponding second cleaning component 402 and the corresponding automatic unloading module 5015, the total weight actually weighed by the weighing sensor 5014204 only includes the weight of the grain particles, the weighing hopper 5011, the baffle plate 5012 and the elastic reset member 5013. Compared with the prior art, it does not include the weight of the driving module used to drive the baffle plate 5012 to open the bottom outlet of the weighing hopper 5011. Therefore, the weighing sensor 5014 in the weighing module 501 has high precision, sensitive weighing, and accurate weighing.

[0092] In some embodiments, outwardly protruding pressing portions 50121 are provided on both sides of the other end of the baffle plate 5012; the automatic unloading module 5015 includes a connecting frame 50152 and a linear module 50151, the connecting frame 50152 is fixed to the linear module 50151, and the linear module 50151 is used to drive the connecting frame 50152 to move up and down; when the connecting frame 50152 is in the initial position, it is separated from the pressing portion 50121, and when the linear module 50151 drives the connecting frame 50152 to move downward from the initial position, the connecting frame 50152 contacts the pressing portion 50121 during the downward movement and pushes the baffle plate 5012 downward, so that the baffle plate 5012 rotates downward to open the bottom outlet, and thereafter, when the linear module 50151 drives the connecting frame 50152 to move upward back to the initial position, the baffle plate 5012 rotates upward under the action of the restoring force of the reset elastic member until the bottom outlet of the weighing hopper 5011 is closed.

[0093] In some embodiments, the automatic unloading module 5015 further includes a rolling bearing 50153, which is disposed on the connecting frame 50152 and is used to contact the pressing portion 50121. It is understandable that by disposing the rolling bearing 50153 on the connecting frame 50152, scratches on the upper surface of the pressing portion 50121 can be avoided, thereby increasing the service life of the pressing portion 50121.

[0094] In some embodiments, Fig.17 As shown, it also includes a material box 6 arranged under each weighing module 501, which is used to receive the grains dropped from the corresponding weighing module 501.

[0095] The following is a detection method of the grain appearance quality detector 1000 according to an embodiment of the utility model. The grain appearance quality detector 1000 is started as follows;

[0096] The grains to be tested are fed into the multi-grain feeding control system 2, and the multi-grain feeding control system 2 transports the grains to the upper surface of the rotating transparent turntable 101 in a single-layer and single-row order;

[0097] The transparent turntable 101 rotates to transport the grains to be detected to the grain multi-feature recognition system 3;

[0098] The grain multi-feature recognition system 3 triggers imaging, collects multiple surface images of grain particles passing through the workstation detection point, and transmits the collected images to the main control module to determine whether the grain particles belong to the imperfect grain category or the perfect grain category;

[0099] If the grains belong to the imperfect grain category, when the imperfect grains reach the corresponding station of the first cleaning component 401 under the rotation of the transparent turntable 101, the first cleaning component 401 cleans the imperfect grains from the transparent turntable 101, so that the imperfect grains are cleaned and enter the corresponding weighing module 501;

[0100] If the grains belong to the perfect grain category, when the grains belonging to the perfect category reach the corresponding station of the second cleaning component 402 under the rotation of the transparent turntable 101, the second cleaning component 402 cleans the grains belonging to the perfect category from the transparent turntable 101 together with the floating debris on the upper surface of the transparent turntable 101, so that the grains belonging to the perfect category are cleaned and enter the corresponding weighing module 501;

[0101] After all the grains to be tested have been tested, the main control module collects the final data of the corresponding weighing module 101 and calculates the test results.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0103] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A grain appearance quality detector, characterized in that: include: A turntable system, the turntable system comprising a transparent turntable; A multi-grain feeding control system, which is used to convey the grains to the upper surface of the rotating transparent turntable in a single-layer and single-row order; A grain multi-feature recognition system, which is used to detect the appearance quality of grain particles transported by the transparent turntable to the workstation detection point; A cleaning system, the cleaning system comprising a first cleaning component, a second cleaning component and a third cleaning component; the first cleaning component is used to clean the grains belonging to the imperfect grain category on the transparent turntable, the second cleaning component is used to simultaneously clean the grains belonging to the perfect grain category and floating dust and debris on the upper surface of the transparent turntable; the third cleaning component is used to clean the floating dust and debris on the lower surface of the transparent turntable; A weighing system, wherein the weighing system comprises weighing modules respectively matched with the first cleaning component and the second cleaning component, and respectively used to weigh the weight of the grains cleaned by the first cleaning component and the second cleaning component.

2. The grain appearance quality detector according to claim 1, characterized in that: The multi-grain feeding control system comprises a storage hopper, a distributing module, a discharging hopper and a vibrating plate; wherein the storage hopper is used to store grains; the distributing module comprises a distributing base, at least three distributing paddles, a rotating shaft and a driving unit; the top and bottom of the distributing base are respectively provided with a feed port and a discharging port, the distributing base is arranged below the storage hopper and the feed port is connected to the lower end of the storage hopper; the distributing base has a hollow cavity with a horizontally extending central axis, and the rotating shaft is installed concentrically with the hollow cavity In the hollow cavity, at least three of the material-dividing paddles are located in the hollow cavity and are evenly distributed and fixed on the rotating shaft along the circumferential direction of the rotating shaft; the driving unit is arranged outside the material-dividing base and is connected to the rotating shaft to drive the rotating shaft to rotate; the discharging hopper is arranged below the material-dividing module, and the upper end of the discharging hopper is connected to the discharging port; the vibrating plate is arranged below the discharging hopper to receive the grains sliding down the discharging hopper, and convey the grain particles to the transparent turntable in a single-layer and single-row discharge order.

3. The grain appearance quality detector according to claim 2, characterized in that: The multi-grain feeding control system also includes a detector, which is used to detect the amount of grain in the vibration plate to control the start and pause of the driving unit, ensuring that the amount of grain in the vibration plate is in an appropriate range, so that the grain particles in the vibration plate can be transported out along the spiral track on the side wall of the vibration plate in a single-layer and single-row discharge order under the vibration of the vibration plate.

4. The grain appearance quality detector according to claim 3, characterized in that: The spiral track includes an ascending spiral track and a sinking spiral track connected to the end of the ascending spiral track, the end of the sinking spiral track is connected to a discharge channel, the discharge channel is lower than the end of the sinking spiral track, and the end of the discharge channel is located above the transparent turntable and close to the transparent turntable.

5. The grain appearance quality detector according to claim 1, characterized in that: The grain multi-feature recognition system includes a first camera component and a second camera component; wherein, the first camera component is located on the upper side of the transparent turntable, the first camera component includes a plurality of first cameras, the plurality of first cameras are arranged obliquely along a circumferential interval around a vertical line of a workstation detection point, and the plurality of first cameras are all aimed at the workstation detection point, and the distances from the plurality of first cameras to the workstation detection point are the corresponding optimal focal lengths of the first cameras; the second camera component is located on the lower side of the transparent turntable, the second camera component includes a second camera, the second camera is vertically aimed at the workstation detection point, and the distance from the second camera to the workstation detection point is the optimal focal length of the second camera.

6. The grain appearance quality detector according to claim 5, characterized in that: The grain multi-feature recognition system also includes a second photoelectric sensor, which is used to trigger the first camera component and the second camera component when the grain particles on the transparent turntable are passing through the sensing position corresponding to the second photoelectric sensor and are about to reach the work station detection point, so that the first camera component and the second camera component can take pictures just when the grain particles from the sensing position corresponding to the second photoelectric sensor reach the work station detection point.

7. The grain appearance quality detector according to any one of claims 1 to 6, characterized in that: The first cleaning component includes a first motor, a rotating paddle and a third photoelectric sensor; the rotating paddle is located above the transparent turntable and is installed on the first motor, and the first motor is used to drive the rotating paddle to rotate from the radial inner side to the radial outer side of the transparent turntable, so that the rotating paddle can pick out grain particles belonging to the imperfect grain category from the transparent turntable; the photoelectric sensor is used to control the rotating paddle to stop at a predetermined position, so that the rotating paddle does not interfere with the path through which the grain passes.

8. The grain appearance quality detector according to any one of claims 1 to 6, characterized in that: The second cleaning assembly includes a cleaning disc and a second motor; one end surface of the cleaning disc is a cleaning disc surface, the cleaning disc is arranged on the upper surface of the transparent rotating disc and the cleaning disc surface is in contact with the upper surface of the transparent rotating disc; The second motor is connected to the cleaning disc to drive the cleaning disc to rotate around the axis of the cleaning disc.

9. The grain appearance quality detector according to any one of claims 1 to 6, characterized in that: The third cleaning assembly includes a cleaning wheel and a third motor; the circumferential surface of the cleaning wheel is the cleaning wheel surface, and the cleaning wheel surface is tangent to the lower surface of the transparent turntable; the third motor is connected to the cleaning wheel to drive the cleaning wheel to rotate around the axis of the cleaning wheel.

10. The grain appearance quality detector according to any one of claims 1 to 6, characterized in that: The weighing module includes a weighing hopper, a baffle plate, an elastic reset member, a weighing sensor and an automatic unloading module; the weighing hopper is not in contact with the corresponding first cleaning component or the corresponding second cleaning component, and is used to receive the grain particles selected by the corresponding first cleaning component or the corresponding second cleaning component; one end of the baffle plate is rotatably connected to one side of the bottom outlet of the weighing hopper; there are two elastic reset members, which are arranged at both sides of the other end of the baffle plate, the upper ends of the two elastic reset members are connected to the weighing hopper, and the lower ends of the two elastic reset members are connected to both sides of the other end of the baffle plate, so that the baffle plate closes the bottom outlet; the weighing hopper is installed on the weighing sensor; the automatic unloading module is used to separate from the baffle plate when the baffle plate closes the bottom outlet, and to contact and push the baffle plate when the grain in the weighing hopper needs to be discharged, so that the grain in the weighing hopper falls from the bottom outlet.

Images