CN118090531A

CN118090531A - Appearance quality detector and detection method for grains

Info

Publication number: CN118090531A
Application number: CN202410364174.XA
Authority: CN
Inventors: 武勇; 刘坤雷; 张崴
Original assignee: Anhui Gaozhe Information Technology Co ltd
Current assignee: Anhui Gaozhe Information Technology Co ltd
Priority date: 2024-03-28
Filing date: 2024-03-28
Publication date: 2024-05-28

Abstract

The invention discloses a grain appearance quality detector and a grain appearance quality detection method. In the detector, a feeding control system is used for feeding materials to the transparent turntable; the grain multi-feature recognition system is used for collecting a plurality of surface images of grain particles conveyed to the station detection points by the transparent turntable so as to determine whether the grain particles belong to imperfect grain categories or perfect grain categories; the first cleaning component is used for cleaning cereal particles belonging to the imperfect grain class on the transparent rotary table, and the second cleaning component is used for simultaneously cleaning cereal particles belonging to the perfect grain class and floating dust impurities on the upper surface of the transparent rotary table; the third cleaning component is used for cleaning floating dust and sundries on the lower surface of the transparent turntable; the weighing system respectively weighs the imperfect grain type grains cleaned by the first cleaning component and the perfect grain type grains cleaned by the second cleaning component. The invention has the advantages of objective and accurate detection result and high detection efficiency, and is suitable for detecting the appearance quality of various grain samples.

Description

Appearance quality detector and detection method for grains

Technical Field

The invention relates to the technical field of cereal detection instruments, in particular to a cereal appearance quality detector and a cereal appearance quality detection method.

Background

The grain quality detection result is a basic index of constant and priced grain warehouse-in time, and is also a basis for hierarchical classified storage of grains; at present, grain quality detection mainly depends on sampling manual detection and manual weighing, and finally, the duty ratio data of various grains is calculated, and the detection mode depends on subjectivity of people, so that detection results lack objectivity and have randomness, and the sorting classification and analysis time is too long, so that the efficiency is low.

Some existing grain quality detection devices cannot adapt to various grain sample quality detection, and for large grain such as corn and soybean, especially corn, the grain quality detection device presents a polygonal three-dimensional shape, the corn grain shape is similar to a flat cuboid shape, the characteristics are spread in multiple directions, and a single camera or two cameras are difficult to fully collect and identify all the characteristics of the epidermis, so that the detection result is inaccurate.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a grain appearance quality detector and a grain appearance quality detecting method.

The first aspect of the invention 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, corn and the like.

According to an embodiment of the first aspect of the present invention, a grain appearance quality detector includes:

A turntable system comprising a transparent turntable driven by a turntable drive assembly;

the feeding control system is used for conveying the grain particles to the upper surface of the transparent turntable in a rotating state according to a single-layer single-row discharging order;

the grain multi-feature recognition system is used for collecting a plurality of face images of grain particles conveyed to the station detection points by the transparent turntable so that the main control module can determine whether the grain particles belong to imperfect grain categories or perfect grain categories;

a cleaning system comprising a first cleaning assembly, a second cleaning assembly, and a third cleaning assembly; the grain multi-feature recognition system, the first cleaning component and the second cleaning component are sequentially arranged according to a path through which grain particles pass on the transparent turntable, the first cleaning component is used for cleaning the grain particles belonging to the imperfect grain class on the transparent turntable, and the second cleaning component is used for cleaning the grain particles belonging to the perfect grain class and floating dust impurities on the upper surface of the transparent turntable at the same time; the third cleaning component is used for cleaning floating dust and sundries on the lower surface of the transparent turntable;

the weighing system comprises a weighing module which is respectively matched with the first cleaning component and the second cleaning component, and the weighing module which is correspondingly matched with the first cleaning component is used for receiving and weighing the weight of imperfect grain types cleaned by the first cleaning component; the weighing module correspondingly matched with the second cleaning assembly is used for receiving and weighing the weight of the grains of the perfect grain class cleaned by the second cleaning assembly.

According to the grain appearance quality detector of the embodiment of the first aspect of the invention, the working process is as follows: starting a grain appearance quality detector; feeding grains to be detected into a feeding control system, and conveying the grains to the upper surface of the rotating transparent turntable according to a single-layer single-row discharging order by the feeding control system; the transparent turntable rotates to convey the grains to be detected to a grain multi-feature recognition system; triggering imaging by a grain multi-feature recognition system, collecting a plurality of face images of grain particles passing through a station detection point, and transmitting the collected images to a main control module to determine whether the grain particles belong to imperfect grain categories or perfect grain categories; if the grain particles belong to the imperfect grain class, when the grain particles belonging to the imperfect grain class reach the corresponding station of the first cleaning component under the rotation of the transparent rotary table, the first cleaning component cleans the grain particles belonging to the imperfect grain class from the transparent rotary table, so that the grain particles belonging to the imperfect grain class are cleaned and enter the corresponding weighing module; if the grain particles belong to the perfect grain class, when the grain particles belonging to the perfect class 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 class from the transparent turntable together with floating and sediments on the upper surface of the transparent turntable, so that the grain particles belonging to the perfect class are cleaned and enter the corresponding weighing module; and after all the grains to be detected are detected, the main control module acquires the final data of the corresponding weighing module, outputs sorting category and weight information, automatically calculates various sorting duty ratios and displays detection results.

In summary, the grain appearance quality detector according to the embodiment of the first aspect of the present invention has the following advantages: the detection result is objective and accurate, the detection efficiency is high, and the method is suitable for appearance quality detection of various grain samples, such as wheat, sorghum, soybean, corn and the like.

In some embodiments, the feed control system comprises a storage hopper, a feed distribution module, a discharge hopper and a vibration disc; wherein the storage hopper is used for storing grains; the material distribution module comprises a material distribution base, at least three material distribution stirring sheets, a rotating shaft and a driving unit; the top and the bottom of the material distributing base are respectively provided with a feed inlet and a discharge outlet correspondingly, the material distributing base is arranged below the storage hopper, and the feed inlet is connected with the lower end of the storage hopper; the material distributing base is provided with a hollow cavity with a central axis extending horizontally, the rotating shaft and the hollow cavity are concentrically arranged in the hollow cavity, and at least three material distributing poking sheets are positioned in the hollow cavity and uniformly distributed and fixed on the rotating shaft along the circumferential direction of the rotating shaft; the driving unit is arranged outside the material distributing base and connected with the rotating shaft so as to drive the rotating shaft to rotate; the discharging hopper is arranged below the material distribution module, and the upper end of the discharging hopper is connected with the discharging port; the vibration disc is arranged below the discharge hopper and is used for receiving grains sliding down along the discharge hopper and conveying the grains to the transparent rotary disc according to a single-layer single-row discharge order.

In some embodiments, the feeding control system further comprises a detector for detecting the grain amount in the vibration tray, so as to control the start and pause of the driving unit, and ensure that the grain amount in the vibration tray is in a proper range, so that grain particles in the vibration tray can be conveyed out along the spiral track on the side wall of the vibration tray according to a single-layer single-row discharging order under the vibration of the vibration tray.

In some embodiments, the spiral track comprises a rising spiral track and a sinking spiral track connected at the end of the rising spiral track, the end of the sinking spiral track is connected with a discharging channel, the discharging channel is lower than the end of the sinking spiral track, and the end of the discharging channel is positioned above the transparent turntable and is close to the transparent turntable.

In some embodiments, the cereal multi-feature identification system comprises a first photographing component and a second photographing component; the first photographing assembly is located on the upper side of the transparent turntable, the first photographing assembly comprises a plurality of first cameras, the plurality of first cameras are obliquely arranged around the vertical line of the station detection point along the circumference at intervals, the plurality of first cameras are aligned to the station detection point, and the distances from the plurality of first cameras to the station detection point are respectively the optimal focal length of the corresponding first cameras; the second photographing assembly is located at the lower side of the transparent turntable and comprises a second camera, the second camera is vertically aligned to the station detection point, and the distance from the second camera to the station detection point is the optimal focal length of the second camera.

In some embodiments, the grain multi-feature recognition system further includes a second photoelectric sensor, where the second photoelectric sensor is configured to trigger the first photographing component and the second photographing component when grains on the transparent turntable pass through a sensing position corresponding to the second photoelectric sensor and are about to reach the station detection point, so that the first photographing component and the second photographing component just perform a photographing action when grains coming from the sensing position corresponding to the second photoelectric sensor reach the station detection point.

In some embodiments, the number of the plurality of first cameras is 2 to 4.

In some embodiments, the first cleaning assembly includes a first motor, a rotary paddle, and a third photosensor; the rotary plectrum is arranged above the transparent turntable and is arranged on the first motor, and the first motor is used for driving the rotary plectrum to rotate from the radial inner side of the transparent turntable to the radial outer side so as to enable the rotary plectrum to pick out cereal particles belonging to imperfect grain types from the transparent turntable; the photoelectric sensor is used for controlling the rotary plectrum to stop at a preset position so that the rotary plectrum does not interfere with a path through which grains pass.

In some embodiments, the second cleaning assembly includes a cleaning disc and a second motor; one end face of the cleaning disc is a cleaning disc face, the cleaning disc is arranged on the upper surface of the transparent rotary disc, and the cleaning disc face is attached to the upper surface of the transparent rotary disc; the second motor is connected with the cleaning disc to drive the cleaning disc to rotate around the axis of the cleaning disc.

In some embodiments, the third cleaning assembly includes a cleaning wheel and a third motor; the periphery 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 with the cleaning wheel to drive the cleaning wheel to rotate around the axis of the cleaning wheel.

In some embodiments, the weighing module comprises a weighing hopper, a striker plate, an elastic reset member, a load cell, and an automatic blanking module; the weighing hopper is not contacted with the corresponding first cleaning component or the corresponding second cleaning component and is used for receiving cereal particles picked by the corresponding first cleaning component or the corresponding second cleaning component; one end of the material blocking plate is rotationally connected with one side of the bottom outlet of the weighing hopper; the two elastic reset pieces are arranged at two sides of the other end of the striker plate, the upper ends of the two elastic reset pieces are connected with the weighing hopper, and the lower ends of the two elastic reset pieces are connected with two sides of the other end of the striker plate so that the striker plate closes the bottom outlet; the weighing hopper is arranged on the weighing sensor; the automatic blanking module is used for being separated from the striker plate when the striker plate closes the bottom outlet and used for being contacted with the striker plate and pushing away the striker plate when grains in the weighing hopper need to be discharged so as to enable the grains in the weighing hopper to fall from the bottom outlet.

The invention also provides a detection method of the grain appearance quality detector.

According to a second aspect of the present invention, a method for detecting appearance quality of cereal by using the appearance quality detector according to any one of the first aspect of the present invention comprises the steps of:

Starting a grain appearance quality detector;

feeding grains to be detected into the feeding control system, wherein the feeding control system conveys the grains to the upper surface of the rotating transparent turntable according to a single-layer single-row discharging order;

The transparent turntable rotates to convey cereal grains to be detected to the cereal multi-feature recognition system;

The grain multi-feature recognition system triggers imaging, acquires a plurality of face images of grain particles passing through the station detection points, and transmits the acquired images to the main control module to determine whether the grain particles belong to imperfect grain categories or perfect grain categories;

If the grain particles belong to the imperfect grain class, when the grain particles belonging to the imperfect grain class reach the corresponding station of the first cleaning component under the rotation of the transparent turntable, the first cleaning component cleans the grain particles belonging to the imperfect grain class from the transparent turntable, so that the grain particles belonging to the imperfect grain class are cleaned and enter the corresponding weighing module;

If the grain particles belong to the perfect grain class, when the grain particles belonging to the perfect class 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 class from the transparent turntable together with floating and sedimentary materials on the upper surface of the transparent turntable, so that the grain particles belonging to the perfect class are cleaned and enter the corresponding weighing module;

and after all the grains to be detected are detected, the main control module collects the corresponding final data of the weighing module and calculates a detection result.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of one orientation of the grain appearance quality detector of the present invention;

FIG. 2 is a perspective view of another orientation of the grain appearance quality detector of the present invention;

FIG. 3 is a perspective view of yet another orientation of the grain appearance quality detector of the present invention;

FIG. 4 is a perspective view of a further orientation of the grain appearance quality detector of the present invention;

FIG. 5 is a side view of the feed control system of the grain appearance quality detector of the present invention;

FIG. 6 is a perspective view of the feed control system of FIG. 5;

FIG. 7 is a schematic diagram of a feed module of the feed control system in the grain appearance quality detector of the present invention;

FIG. 8 is a schematic diagram of a grain multi-feature identification system in a grain appearance quality detector of the present invention;

FIG. 9 is a schematic diagram of a first cleaning assembly in the grain appearance quality detector of the present invention;

FIG. 10 is a schematic diagram of a second cleaning assembly in the grain appearance quality detector of the present invention;

FIG. 11 is a schematic view of a cleaning pan of a second cleaning assembly in the grain appearance quality detector of the present invention;

FIG. 12 is a schematic view of a cleaning wheel of a second cleaning assembly in the grain appearance quality detector of the present invention;

FIG. 13 is a schematic view showing a weighing module in the grain appearance quality detector of the present invention in a closed state;

FIG. 14 is a schematic view showing a weighing module in the grain appearance quality detector of the present invention in an open state;

FIG. 15 is a schematic view of the weighing section of the weighing module in the grain appearance quality detector of the present invention;

FIG. 16 is a schematic diagram of an automatic blanking module of a weighing module in a grain appearance quality detector of the present invention;

FIG. 17 is a schematic diagram of a cleaning system, weighing system and cartridge in the grain appearance quality detector of the present invention.

Reference numerals:

A grain appearance quality detector 1000; a turntable system 1; a transparent turntable 101; a feeding control system 2; a storage hopper 201; a material distribution module 202; a dispensing base 2021; a dispensing paddle 2022; a rotation shaft 2023; a driving unit 2024; a detector 2025; a discharge hopper 203; a vibration plate 204; a spiral track 2041; ascending spiral track 20411; sinking a helical track 20412; a discharge channel 20413; a cereal multi-feature recognition system 3; a first photographing component 301; a first camera 3011; a second photographing component 302; a second camera 3021; a second photosensor 303; a cleaning system 4; a first cleaning assembly 401; a first motor 4011; rotating the plectrum 4012; a third photosensor 4013; a first collection hopper 4014; a second cleaning assembly 402; a second motor 4021; a cleaning disk 4022; a cleaning disk surface 40221; a second collection hopper 4023; a third cleaning assembly 403; a third motor 4031; a cleaning wheel 4032; cleaning tread 40321; a weighing system 5; a weighing module 501; a weighing hopper 5011; a dam 5012; a pressing portion 50121; an elastic restoring member 5013; a load cell 5014; an automatic blanking module 5015; a linear module 50151; a connecting frame 50152; a rolling bearing 50153; and a cartridge 6.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

The grain appearance quality detector 1000 and the detection method according to the embodiments of the present invention are described below with reference to fig. 1 to 17.

As shown in fig. 1 to 17, a first aspect of the present invention provides a grain appearance quality detector 1000.

The grain appearance quality detector 1000 according to the embodiment of the first aspect of the present invention includes a turntable system 1, a feeding control system 2, a grain multi-feature recognition system 3, a cleaning system 4, and a weighing system 5.

Wherein, carousel system 1 includes the transparent carousel 101 of by carousel drive assembly drive, and transparent carousel 101 is used for placing the cereal granule that appearance quality is to be detected, and carousel drive assembly drive transparent carousel 101 rotates, and cereal granule on the transparent carousel 101 can follow transparent carousel 101 and rotate together.

The feeding control system 2 is used for conveying grains according to a single-layer single-row discharge order onto the upper surface of the transparent turntable 101 in a rotating state. That is, the feeding control system 2 delivers the grain samples to be detected to the transparent turntable 101 in a row one by one manner, so that the grains on the transparent turntable 101 are also arranged one by one in a row and are not stacked, which is advantageous for the grain multi-feature recognition system 3 to be able to recognize a plurality of face images of the grains one by one.

The grain multi-feature recognition system 3 is used for collecting a plurality of surface images of grain particles conveyed to the station detection points by the transparent turntable 101, so that the main control module can determine whether the grain particles belong to imperfect grain categories or perfect grain categories. That is, when the single grain particles on the transparent turntable 101 rotate to the station detection point following the transparent turntable 101, the grain multi-feature recognition system 3 can comprehensively shoot the single grain particles to obtain images of multiple faces, for example, the corn grains have six faces, the grain multi-feature recognition system 3 can shoot the six faces of the single corn grains to obtain images of the six faces, and thus the main control module can objectively and accurately judge whether the grain particles belong to the imperfect grain class or the perfect grain class according to the images of the multiple faces of the grain particles.

The cleaning system 4 comprises a first cleaning assembly 401, a second cleaning assembly 402, and a third cleaning assembly 403; the grain multi-feature recognition system 3, the first cleaning component 401 and the second cleaning component 402 are sequentially arranged according to a path through which grain particles on the transparent turntable 101 pass, the first cleaning component 401 is used for cleaning the grain particles belonging to the imperfect grain class on the transparent turntable 101, and the second cleaning component 402 is used for cleaning the grain particles belonging to the perfect grain class and floating dust impurities on the upper surface of the transparent turntable 101 at the same time; the third cleaning assembly 403 is used to clean up dust and debris on the lower surface of the transparent turntable 101. It can be understood that the cereal grains on the transparent turntable 101 pass through the station detection point of the cereal multi-feature recognition system 3, the cereal multi-feature recognition system 3 comprehensively shoots the cereal grains passing through the station detection point, a plurality of face images of the cereal grains are obtained and sent to the main control module, and the main control module judges whether the cereal grains belong to the imperfect grain class or the perfect grain class in real time; when the grain particles reach the corresponding stations of the first cleaning assembly 401 from the station detection points along with the transparent turntable 101, if the grain particles belong to the imperfect grain types, the first cleaning assembly 401 sweeps the grain particles of the imperfect grain types off the transparent turntable 101, and if the grain particles belong to the perfect grain types, the first cleaning assembly 401 does not clean the grain particles, and the grain particles still remain on the transparent turntable 101 to continue to rotate along with the transparent turntable 101; it will be appreciated that the defective grain types of the grains include worm eroded grains, disease spots grains, sprouted grains, mildew grains, broken grains, frostbite grains, baked grains or uncooked grains, and the first cleaning assembly 401 is provided with a plurality of defective grain types which can be flexibly sorted according to the need. When grains come from the corresponding station of the first cleaning component 401 to the corresponding station of the second cleaning component 402, the second cleaning component 402 cleans the grains from the transparent turntable 101, and simultaneously sweeps down dust and impurities on the transparent turntable 101 to clean 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 outlet of the feeding control system 2, and the grains sent by the feeding control system 2 are received. A third cleaning assembly 403 may be provided below the transparent turntable 101 to clean dust on the lower surface of the transparent turntable 101. Thus, by providing a first cleaning assembly 401 and a second cleaning assembly 402, cereal particles may be sorted; through the corresponding position clean up of upper and lower surface of second clearance subassembly 402 and third clearance subassembly 403 with transparent carousel 101, when the position that upper and lower surface was cleaned up was rotated to the export pay-off position of pan feeding control system 2 of transparent carousel 101, cereal granule just can arrange in the position department that transparent carousel 101 upper and lower surface was cleaned up, carry station check point department through rotatory transparent carousel 101 and shoot, avoided original floating dust debris to the influence of effect of shooing for cereal granule image that beats is clear, can greatly improve the accuracy of testing result.

The weighing system 5 comprises weighing modules 501 respectively matched with the first cleaning assembly 401 and the second cleaning assembly 402, and the weighing modules 501 correspondingly matched with the first cleaning assembly 401 are used for receiving and weighing the weight of imperfect grain types cleaned by the first cleaning assembly 401; the weighing module 501 corresponding to the second cleaning assembly 402 is configured to receive and weigh the grain of the perfect grain class cleaned by the second cleaning assembly 402. By arranging the weighing system 5, the final weight of the cereal particles in the corresponding category can be weighed, so that the main control module outputs sorting category and weight information, various sorting duty ratios are automatically calculated, and the detection result is displayed.

According to the grain appearance quality detector 1000 of the first aspect of the present invention, the operation process is: starting the grain appearance quality detector 1000; feeding grains to be detected into a feeding control system 2, wherein the feeding control system 2 conveys the grains to the upper surface of a rotating transparent turntable 101 according to a single-layer single-row discharging order; the transparent turntable 101 rotates to convey the grains to be detected to the grain multi-feature recognition system 3; the grain multi-feature recognition system 3 triggers imaging, acquires a plurality of face images of grain particles passing through a station detection point, and transmits the acquired images to the main control module to determine whether the grain particles belong to imperfect grain categories or perfect grain categories; if the grain particles belong to the imperfect grain class, when the grain particles belonging to the imperfect grain class reach the corresponding station of the first cleaning assembly 401 under the rotation of the transparent turntable 101, the first cleaning assembly 401 cleans the grain particles belonging to the imperfect grain class from the transparent turntable 101, so that the grain particles belonging to the imperfect grain class are cleaned and enter the corresponding weighing module 501; if the grain particles belong to the perfect grain class, when the grain particles belonging to the perfect class 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 grain particles belonging to the perfect class from the transparent turntable 101 together with the floating and sedimentary objects on the upper surface of the transparent turntable 101, so that the grain particles belonging to the perfect class are cleaned and enter the corresponding weighing module 501; after all the grains to be detected are detected, the main control module collects the final data of the corresponding weighing module 501, outputs sorting category and weight information, automatically calculates various sorting duty ratios and displays detection results.

In summary, the grain appearance quality detector 1000 according to the first aspect of the present invention has the following advantages: the detection result is objective and accurate, the detection efficiency is high, and the method is suitable for appearance quality detection of various grain samples, such as wheat, sorghum, soybean, corn and the like.

In some embodiments, as shown in fig. 5 and 6, the feed control system 2 includes a storage hopper 201, a dispensing module 202, a discharge hopper 203, and a vibration plate 204; the material distributing module 202 comprises a material distributing base 2021, at least three material distributing poking pieces 2022, a rotating shaft 2023 and a driving unit 2024; the top and the bottom of the material distributing base 2021 are respectively provided with a feed inlet and a discharge outlet correspondingly, the material distributing base 2021 is arranged below the storage hopper 201, and the feed inlet is connected with the lower end of the storage hopper 201; the material distributing base 2021 is provided with a hollow cavity with a central axis extending horizontally, the rotary shaft 2023 and the hollow cavity are concentrically arranged in the hollow cavity, and at least three material distributing poking pieces 2022 are positioned in the hollow cavity and uniformly distributed and fixed on the rotary shaft 2023 along the circumferential direction of the rotary shaft 2023; the driving unit 2024 is disposed outside the dispensing base 2021 and connected to the rotation shaft 2023 to drive the rotation shaft 2023 to rotate; the discharge hopper 203 is arranged below the material distribution module 202, and the upper end of the discharge hopper 203 is connected with a discharge port; a vibration tray 204 is provided below the discharge hopper 203 for receiving grains sliding down the discharge hopper 203 and conveying the grains to the transparent rotary tray 101 in a single-layer single-row discharge order.

Specifically, the storage hopper 201 is used for storing grains. The grains stored in the storage hopper 201 are generally grains to be inspected, and the grains to be inspected may be wheat, sorghum, soybean, corn, and the like. When the detection is needed, grains to be detected are added into the storage hopper 201, the storage hopper 201 can be made larger according to actual use requirements, a larger amount of grains to be detected can be stored, the grain adding times are reduced, and the efficiency is improved.

The distributing module 202 includes a distributing base 2021, at least three distributing paddles 2022, a rotating shaft 2023, and a driving unit 2024. The top and bottom of the distributing base 2021 are respectively provided with a feed inlet and a discharge outlet, and the distributing base 2021 is disposed below the storage hopper 201 and the feed inlet is connected to the lower end of the storage hopper 201, so that grains stored in the storage hopper 201 can directly and automatically fall into the distributing base 2021 from the lower end of the storage hopper 201 through the feed inlet. The material distributing base 2021 is provided with a hollow cavity with a central axis extending horizontally, the rotating shaft 2023 and the hollow cavity are concentrically arranged in the hollow cavity, namely, the rotating shaft 2023 is coaxial with the hollow cavity, at least three material distributing poking pieces 2022 are positioned in the hollow cavity and uniformly distributed and fixed on the rotating shaft 2023 along the circumferential direction of the rotating shaft 2023, so that a fan-shaped space is formed between every two adjacent material distributing poking pieces 2022, and at least three material distributing poking pieces 2022 can correspondingly form at least three fan-shaped spaces; since the at least three distributing paddles 2022 are uniformly distributed along the circumferential direction of the rotation shaft 2023, the at least three fan-shaped spaces are substantially the same, and when the at least three distributing paddles 2022 rotate at any angle along the rotation shaft 2023, the at least three distributing paddles can seal the feed inlet and the discharge outlet of the distributing base 2021, that is, the grains cannot directly and vertically fall between the feed inlet and the discharge outlet, but can only fall into the fan-shaped space with the openings facing upwards or the opening parts facing upwards from the feed inlet, and the openings of the fan-shaped space receiving the grains rotate to the discharge outlet along with the rotation of the rotation shaft 2023, and the grains flow out from the discharge outlet by gravity. The driving unit 2024 is disposed outside the material distributing base 2021 and connected to the rotation shaft 2023, so as to drive the rotation shaft 2023 to rotate, so that at least three material distributing paddles 2022 can rotate synchronously with the rotation shaft 2023 when following, and the grains can be input from the feed inlet to the discharge outlet and discharged by driving the rotation shaft 2023 through the driving unit 2024. Therefore, the material distribution module 202 can accurately control the discharge quantity and the discharge speed, and intermittent feeding can be realized. According to grain size and feeding control precision, the number of the distributing paddles 2022 can be increased, namely, the metering minimum indexing value is reduced, and the metering is more accurate.

The discharge hopper 203 is arranged below the material distribution module 202, and the upper end of the discharge hopper 203 is connected with a discharge hole of the material distribution base 2021; this ensures that the grain discharged by the dispensing module 202 slides down the hopper 203.

A vibration tray 204 is provided below the discharge hopper 203 for receiving grains sliding down the discharge hopper 203 and conveying the grains to the transparent rotary tray 101 in a single-layer single-row discharge order. It should be noted that, the inner wall of the vibration disc 204 is provided with a spiral track 2041, and the vibration disc 204 vibrates and disperses the grain particles in the vibration disc 204 under the condition of proper vibration frequency and voltage, so that the grain particles are fed along the spiral track 2041 according to a single layer, and the grain particles are conveyed to the transparent turntable 101 according to a single-layer single-row discharge order, so as to improve the detection effect. Because the above-mentioned material distributing module 202 can accurately control the quantity and the speed of discharging, intermittent feeding can be realized, so that the grain quantity in the vibration disc 204 can be ensured to be always in the optimal detection quantity or the optimal detection interval, and the grain particles on the spiral track 2041 are ensured to be always in single-layer arrangement.

The working process of the feeding control system 2 is as follows: the grains to be detected are added into the storage hopper 201, and at least three distributing poking sheets 2022 in the distributing base 2021 can be used for blocking the feeding hole and the discharging hole of the distributing base 2021 when being at any angle, so that the grains are left in the storage hopper 201 and can fall into a fan-shaped space with an upward opening or an upward opening part from the feeding hole, and cannot directly and vertically fall from between the feeding hole and the discharging hole. As the drive unit 2024 drives the distributing dial 2022 to rotate, the opening of the fan-shaped space in which the grains are received rotates to the discharge port, the grains flow out from the discharge port by gravity, and slide down into the vibration plate 204 through the hopper 203. By controlling the start and pause of the driving unit 2024, it is ensured that the grain amount in the vibration plate 204 is always within the optimal detection amount or optimal detection interval, and the vibration plate 204 is arranged on the spiral track 2041 in a single layer under the appropriate vibration frequency and voltage conditions, so that the grain particles are guided into the transparent turntable 101 according to the single-layer single-row discharge order.

Therefore, the feeding control system 2 can store a larger amount of grains to be detected by arranging the storage hopper 201, so that the grain adding frequency is reduced, and the efficiency is improved; through setting up the feed module 202, can initiatively seal the export of storage hopper 201 lower extreme on the one hand, avoid taking place at the unusual phenomenon of unloading of pan feeding control system 2, on the other hand can accurate control ejection of compact quantity and ejection of compact speed, can realize intermittent type nature pay-off, ensure that the cereal volume in the vibration dish 204 is in the best detection volume or the best detection interval always, vibration dish 204 vibrates under suitable vibration frequency, voltage condition, makes cereal granule be the individual layer and arranges on spiral track 2041, guides cereal granule according to the single row of individual layer row material order on transparent carousel 101. From this, this pan feeding control system has realized once depositing great quantity and has waited to detect cereal sample, can realize accurate feed according to best pay-off effect, can effectively promote detection effect, is applicable to multiple cereal such as maize, soybean, wheat etc. this pan feeding control system 2 with low costs, work efficiency is high.

In some embodiments, as shown in fig. 5, the feed control system 2 further includes a detector 2025, where the detector 2025 may be a first photoelectric sensor or a ranging sensor; the detector 2025 is used to detect the amount of grain in the vibration plate 204 to control the start and stop of the driving unit 2024, so as to ensure that the amount of grain in the vibration plate 204 is in a proper range, so that grains in the vibration plate 204 can be conveyed along the spiral track 2041 on the side wall of the vibration plate 204 according to the single-layer single-row discharge order under the vibration of the vibration plate 204. That is, the detector 2025 can accurately detect the grain amount in the vibration disc 204, and the photoelectric sensor cooperates with the driving unit 2024 to realize closed-loop control to adjust the grain amount in the vibration disc 204 within an optimal detection amount range, which is beneficial to enabling grains in the vibration disc 204 to be distributed on the spiral track 2041 in a single layer under the vibration of the vibration disc 204.

Specifically, the detector 2025 detects the grain amount in the vibration plate 204, and when no grain or less grain is in the vibration plate 204 (a material threshold a may be set in advance according to the actual situation, and the material is less than a), the detector 2025 triggers and transmits a signal to the driving unit 2024 (e.g. the motor of the driving unit 2024) of the dispensing module 202, so that the driving unit 2024 is started to drive the dispensing paddle 2022 to rotate. The grains in the material distribution module 202 are gradually discharged into the vibration plate 204. When the material on the vibration plate 204 gradually increases to reach the material threshold a, the detector 2025 stops sending information, the driving unit 2024 stops, and the material distributing module 202 stops discharging.

The whole process of the vibration disc 204 is always in a working state, the signals of the detector 2025 are not related, materials in the vibration disc 204 are sequentially sent out in a single layer and single row, when the grain quantity is less than a, the detector 2025 is triggered, the material distribution module 202 is started, and grains are added into the vibration disc 204 until the grain quantity in the vibration disc 204 reaches a.

Thus by setting the start and stop thresholds for the detector 2025, the amount of grain in the vibration tray 204 can be controlled to achieve an optimal vibratory feed condition.

In some embodiments, detector 2025 is mounted on the lower end of hopper 203. Thus, the detector 2025 is easy to install and can accurately detect the amount of grain in the vibration plate 204.

In some embodiments, at least three of the dispensing paddles 2022 are flexible dispensing paddles, i.e., all of the dispensing paddles 2022 are flexible dispensing paddles. The flexible material separation poking plate has certain flexibility, when the rotation process, when the material clamping exists between the flexible material separation poking plate and the material separation base 2021, the rotation shaft 2023 still can continue to rotate due to larger torque, so that the flexible material separation poking plate is subjected to bending deformation, and the cereal particles to be detected are prevented from being damaged due to the fact that the sample is extruded.

In some embodiments, as shown in fig. 7, the radially outer portions of at least three of the distributing paddles 2022 are provided with saw tooth structures, which can further improve the flexibility of the distributing paddles 2022 and protect the grain sample to be detected. Specifically, the size of the saw tooth structure can be designed according to the size of grain particles, so that the flexibility of the distributing poking piece 2022 can be further improved, and grains to be detected are protected.

In some embodiments, as shown in fig. 6, the spiral track 2041 comprises a rising spiral track 20411 and a sinking spiral track 20412 connected at the end of the rising spiral track 20411, the end of the sinking spiral track 20412 is connected with a discharge channel 20413, the discharge channel 20413 is lower than the end of the sinking spiral track 20412, and the end of the discharge channel 20413 is positioned above the transparent turntable 101 and is proximate to the transparent turntable 101. By arranging the sinking spiral track 20412, when grains fall into the sinking spiral track 20412 from the tail end of the rising spiral track 20411, grain single-row arrangement is further ensured, the height of the outlet of the discharging channel 20413 is reduced, the outlet of the discharging channel 20413 is closer to the transparent turntable 101, and grains are prevented from bouncing off when falling onto the transparent turntable 101, and grain path tracks on the transparent turntable 101 are offset.

In some embodiments, as shown in fig. 8, the cereal multi-feature identification system 3 comprises a first photographing component 301 and a second photographing component 302; the first photographing assembly 301 is located on the upper side of the transparent turntable 101, the first photographing assembly 301 includes a plurality of first cameras 3011, the plurality of first cameras 3011 are obliquely arranged around a vertical line of the station detection points along a circumference at intervals, the plurality of first cameras 3011 are aligned to the station detection points, and distances from the plurality of first cameras 3011 to the station detection points are respectively the optimal focal lengths of the corresponding first cameras 3011; that is, the first photographing assembly 301 can clearly photograph the surfaces of the grains of the station detecting point except the bottom surface from a plurality of different angles above the transparent turntable 101, so as to capture the appearance characteristics of the remaining surfaces except the bottom surface of the grains, which is beneficial to improving the accuracy of the appearance detecting result of the grains. The plurality of first cameras 3011 recognize the same grain particles at the station detection points, namely shoot the grain sample particles at the same time, so that complex processes of later image matching can be reduced, and computing resources are saved. The second photographing assembly 302 is located at the lower side of the transparent turntable 101, the second photographing assembly 302 includes a second camera 3021, the second camera 3021 is vertically aligned with the station detection point, and the distance from the second camera 3021 to the station detection point is the best focal length of the second camera 3021. That is, the second camera 3021 can clearly capture an image of the bottom surface of the cereal grain reaching the station inspection point, and can capture the appearance of the bottom surface of the cereal grain. Therefore, the images shot by the second camera 3021 and the images shot by the plurality of first cameras 3011 can obtain all the surface features of the cereal grains through the post algorithm processing, so that the appearance quality of the cereal sample grains is judged according to all the surface features of the cereal sample grains, and the appearance quality detection result of the cereal sample, particularly large grain cereal samples such as corn, soybean and the like, is greatly improved; and the complex processes of identifying all the surface features of the grain sample particles such as later image matching can be reduced, and the computing resources are saved.

In some embodiments, as shown in fig. 1 and 2, the grain multi-feature recognition system 3 further includes a second photosensor 303, where the second photosensor 303 is configured to trigger a photographing component and the second photographing component 302 when the grain particles on the transparent turntable 101 are passing through the sensing position corresponding to the second photosensor 303 and are about to reach the station detection point, so that the first photographing component 301 and the second photographing component 302 perform a photographing action just when the grain particles from the sensing position corresponding to the second photosensor 303 reach the station detection point. It can be appreciated that, since the time point when the second photoelectric sensor 303 triggers the first photographing component 301 and the second photographing component 302 to the time point when the first photographing component 301 and the second photographing component 302 perform the photographing action has a time interval, that is, the photographing actions of the first photographing component 301 and the second photographing component 302 have action delay with respect to the triggering of the second photoelectric sensor 303, the sensing position corresponding to the second photoelectric sensor 303 has a certain distance from the sensing position to the station detection point of the first photographing component 301 and the second photographing component 302, and the time required for the cereal particles to reach the station detection point from the sensing position is exactly equal to the time interval between the time point when the second photoelectric sensor 303 triggers to the time point when the first photographing component 301 and the second photographing component 302 perform the photographing action, so that the first photographing component 301 and the second photographing component 302 can simultaneously photograph the same cereal particles, and obtain images of multiple faces of the cereal particles.

The grain multi-feature recognition system 3 works as follows: when grains on the transparent turntable 101 rotate along with the transparent turntable 101, the grains pass through the sensing position corresponding to the second photoelectric sensor 303, and at the moment, the second photoelectric sensor 303 senses the grains and triggers the first photographing assembly 301 and the second photographing assembly 302; then, through the station detection point, at this time, the plurality of first cameras 3011 shoot clear images from above the transparent turntable 101 from a plurality of different angles on the other surfaces except the bottom surfaces on the cereal grains at the station detection point, and at the same time, the second camera 3021 shoots clear images from below the transparent turntable 101 on the bottom surfaces on the cereal grains; all the surface features of the grain sample particles can be obtained through the post algorithm processing of the images shot by the first cameras 3011 and the second cameras 3021, so that the appearance quality of the grain sample particles is judged according to all the surface features of the grain sample particles, and the appearance quality detection result of the grain sample, particularly large grain samples such as corn, soybean and the like, is greatly improved; and the complex processes of identifying all the surface features of the grain sample particles such as later image matching can be reduced, and the computing resources are saved.

In some embodiments, the number of the plurality of first cameras 3011 is 2 to 4. That is, the first cameras 3011 may have 2, 3 or 4, so that when detecting large grain particles, the appearance detection result of the large grain particles can be greatly improved, and the method is suitable for detecting the appearance quality of large grain such as corn, soybean and the like, and is also suitable for detecting the appearance quality of small grain such as wheat, sorghum, rice and the like.

In particular, when the grain sample particle is corn, since the corn has a similar flat cuboid three-dimensional structure, 6 surface features of the corn need to be collected to completely collect the corn surface features, and in an ideal state, 6 surfaces of the corn need to be collected to be identified by an algorithm, however, multiple experiments show that the corn multi-feature identification system 3 is provided with 5 cameras, namely, four first cameras 3011 and one second camera 3021 can collect all the surface features of the corn particle.

When the grain sample particles are soybeans, since the soybeans exhibit large particles and are in a nearly circular three-dimensional shape, the whole surface features of the soybeans can be collected by arranging 3 first cameras 3011 or by arranging 4 first cameras 3011.

When the grain sample particles are wheat, sorghum and rice, all the surface features of the grain sample particles can be collected by arranging 2 first cameras 3011 because the wheat, the sorghum and the rice all have small-particle elliptic three-dimensional features.

In summary, the cereal multi-feature recognition system 3 is suitable for detecting appearance quality of various cereal particles, such as cereal particles of different forms including corn, soybean, wheat, corn, sorghum, etc., and is convenient to integrate in different cereal detection devices and cereal automatic detection pipelines.

In some embodiments, the plurality of first cameras 3011 are located at the same height, distances from the plurality of first cameras 3011 to the station detection points are the same, and the device is convenient to install, convenient to focus, convenient to splice later-stage photo images, and capable of reducing complex processes such as later-stage photo matching.

In some embodiments, the plurality of first cameras 3011 are equally spaced circumferentially, and more features of the grain sample particles to be captured may be captured according to the increased coverage angle of the image of the grain sample particle shape feature adaptation.

In some embodiments, as shown in fig. 9, the first cleaning assembly 401 includes a first motor 4011, a rotary paddle 4012, and a third photosensor 4013; the rotary plectrum 4012 is located above the transparent turntable 101 and is mounted on the first motor 4011, and the first motor 4011 is used for driving the rotary plectrum 4012 to rotate from the radial inner side of the transparent turntable 101 to the radial outer side so as to enable the rotary plectrum 4012 to pick out grains belonging to imperfect grain types from the transparent turntable 101; the third photosensor 4013 is used to control the rotary knob 4012 to stop at a predetermined position so that the rotary knob 4012 does not interfere with a path through which grains pass. The first cleaning assembly 401 is simple and compact in structure, and can effectively pick out imperfect grain particles from the transparent turntable 101. It will be appreciated that the defective grain types of the grains include worm eroded grains, disease spots grains, sprouted grains, mildew grains, broken grains, frostbite grains, baked grains or uncooked grains, and the first cleaning assembly 401 is provided with a plurality of defective grain types which can be flexibly sorted according to the need.

In some embodiments, the third photosensor 4013 is mounted on the first motor 4011 with convenient installation and simple structure.

In some embodiments, the first cleaning assembly 401 further includes a first collection hopper 4014; the first hopper 4014 has a first hopper inlet and a first hopper outlet, the first hopper inlet being engaged with a side outer edge of the transparent turntable 101 and the rotary pulling piece 4012. Thus, when the rotating paddle 4012 picks out the grains of the defective grain type from the transparent turntable 101, the grains pass through the first collecting hopper 4014 to enter the weighing module 501, that is, by providing the first collecting hopper 4014, the grains are prevented from being ejected out and not entering the weighing module 501. Since the first aggregate bin 4014 is not in contact with the weighing module 501, the accuracy of the weighing module 501 is not affected.

In some embodiments, as shown in fig. 10 and 11, the second cleaning assembly 402 includes a cleaning disk 4022 and a second motor 4021; one end surface of the cleaning disk 4022 is a cleaning disk surface 40221, the cleaning disk 4022 is arranged on the upper surface of the transparent rotary disk 101, and the cleaning disk surface 40221 is attached to the upper surface of the transparent rotary disk 101; the second motor 4021 is connected to the cleaning disk 4022 to drive the cleaning disk 4022 to rotate about an axis of the cleaning disk 4022. Thus, when the second motor 4021 drives the cleaning disc 4022 to rotate, the rotating cleaning disc 4022 can clean grains and floating dust impurities of perfect grain types reaching the corresponding station of the second cleaning component 402 from the upper surface of the transparent rotary disc 101, so that the upper surface of the transparent rotary disc 101 is cleaned at the position of the corresponding station of the second cleaning component 402, and the cleaning effect is good. As above, the second cleaning assembly 402 is simple in structure and easy to implement.

In some embodiments, the cleaning surface 40221 is a flexible surface that provides better cleaning without damaging the upper surface of the transparent turntable 101.

In some embodiments, the cleaning disk surface 40221 is made of soft fur or sponge, so that the cleaning effect is better, and the upper surface of the transparent turntable 101 is not damaged. The fluff may be selected from wool or other fibrous fluff, etc.

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

In some embodiments, the second cleaning assembly 402 further includes a second collection 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 is matched with the cleaning disk 4022 at the outer side of the transparent turntable 101. In this way, the cleaning tray 4022 passes through the second collection hopper 4023 to enter the corresponding weighing module 501 after the grains of the perfect grain type are cleaned from the transparent turntable 101, that is, by providing the second collection hopper 4023, grains can be prevented from being ejected and not entering the corresponding weighing module 501. Since the second collection hopper 4023 is not in contact with the corresponding weighing module 501, the accuracy of weighing of the corresponding weighing module 501 is not affected.

In some embodiments, as shown in fig. 10 and 12, 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; a third motor 4031 is coupled to the cleaning wheel 4032 to drive the cleaning wheel 4032 to rotate about the axis of the cleaning wheel 4032. Thus, when the third motor 4031 drives the cleaning wheel 4032 to rotate, the rotating cleaning wheel 4032 can clean up the floating and sedimentary objects on the lower surface of the transparent turntable 101, so that the lower surface of the transparent turntable 101 is cleaned up at the position corresponding to the third cleaning assembly 403, and the cleaning effect is good. As above, the third cleaning assembly 403 is simple in structure and easy to implement.

In some embodiments, the cleaning tread 40321 is a flexible cleaning tread 40321. The flexible cleaning tread 40321 provides better cleaning while not damaging the lower surface of the transparent turntable 101.

In some embodiments, the cleaning tread 40321 is made of fur or sponge, which provides better cleaning without damaging the lower surface of the transparent turntable 101. The fluff may be selected from wool or other fibrous fluff, etc.

In some embodiments, a third motor 4031 is positioned below the transparent turntable 101, the third motor 4031 is coaxially coupled to the cleaning wheel 4032, and the axis of the third motor 4031 is parallel to the transparent turntable 101. The arrangement is simple and reasonable.

In some embodiments, as shown in fig. 13-17, the weighing module 501 includes a weigh hopper 5011, a striker plate 5012, a resilient reset 5013, a load cell 5014, and an automatic blanking module 5015; the weighing hopper 5011 is not contacted with the corresponding first cleaning component 401 or the corresponding second cleaning component 402 and is used for receiving cereal grains picked by the corresponding first cleaning component 401 or the corresponding second cleaning component 402; one end of the baffle plate 5012 is rotationally connected with one side of the bottom outlet of the weighing hopper 5011; the two elastic reset pieces 5013 are arranged at two sides of the other end of the baffle plate 5012, the upper ends of the two elastic reset pieces 5013 are connected with the weighing hopper 5011, and the lower ends of the two elastic reset pieces 5013 are connected with two sides of the other end of the baffle plate 5012 so that the baffle plate 5012 closes the bottom outlet; a weighing hopper 5011 is arranged on the weighing sensor 5014; the automatic blanking module 5015 is for separating from the blanking plate 5012 when the blanking plate 5012 closes the bottom outlet and for contacting the blanking plate 5012 and pushing away the blanking plate 5012 when the grains in the weighing hopper 5011 need to be discharged to drop the grains in the weighing hopper 5011 from the bottom outlet. As can be appreciated, the weighing hopper 5011, upon receiving the cereal grains of the first cleaning assembly 401, the bottom outlet of the weighing hopper 5011 is closed by the resilient reset member 5013 against the striker plate 5012, such that the cereal grains accumulate in the weighing hopper 5011 and are weighed in real time by the load cell 5014; when the grain sample is picked, the weighing sensor 5014 can display the final weight of the grain of the corresponding category under picking so as to output sorting category and weight information, automatically calculate various sorting duty ratios and display detection results. When weighing is finished, the automatic blanking module 5015 presses down one end of the baffle plate 5012 containing the elastic reset piece 5013, when the pressure exceeds the tension of the elastic reset piece 5013, the baffle plate 5012 is opened downwards, grains in the weighing hopper 5011 flow out, and when the pressure is removed, the baffle plate 5012 is automatically restored under the action of the tension of the elastic reset piece 5013. Since the striker plate 5012 and the elastic restoring member 5013 are fixed to the load cell 5014 by the weigh hopper 5011, since neither the weigh hopper 5011 nor the corresponding first cleaning assembly 401 nor the corresponding automatic blanking module 5015 are in contact with either the weigh hopper 5011 or the corresponding second cleaning assembly 402 and the corresponding automatic blanking module 5015, the total weight actually weighed by the load cell 5014204 includes only the weight of the cereal particles, the weight of the weigh hopper 5011, the striker plate 5012 and the elastic restoring member 5013, and, compared to the prior art, the weight of the drive module for driving the striker plate 5012 to open the bottom outlet of the weigh hopper 5011 is not included, therefore, the weighing sensor 5014 in the weighing module 501 has high accuracy, sensitive weighing, and accurate weighing.

In some embodiments, the other end of the striker plate 5012 is provided with pressing portions 50121 protruding outward on both sides; the automatic blanking module 5015 comprises a connecting frame 50152 and a linear module 50151, wherein the connecting frame 50152 is fixed with the linear module 50151, and the linear module 50151 is used for driving the connecting frame 50152 to move up and down; the link 50152 is separated from the pressing part 50121 when being at the initial position, when the linear module 50151 drives the link 50152 to move downward from the initial position, the link 50152 contacts with the pressing part 50121 and pushes the striker plate 5012 downward in the process of moving downward, so that the striker plate 5012 rotates downward to open the bottom outlet, and then, when the linear module 50151 drives the link 50152 to move upward to the initial position, the striker plate 5012 rotates upward under the restoring force of the restoring elastic member until the bottom outlet of the weighing hopper 5011 is closed.

In some embodiments, the automatic blanking module 5015 further includes a rolling bearing 50153, the rolling bearing 50153 being disposed on the connecting frame 50152, the rolling bearing 50153 being for contact with the pressing portion 50121. It can be appreciated that by providing the rolling bearing 50153 on the connecting frame 50152, scratches on the upper surface of the pressing portion 50121 can be avoided, and the service life of the pressing portion 50121 can be improved.

In some embodiments, as shown in fig. 17, a magazine 6 is also included, disposed below each weighing module 501, for receiving the falling grains in the corresponding weighing module 501, respectively.

The second aspect of the present invention also provides a detection method of the grain appearance quality detector 1000.

The method for detecting the appearance quality of grains by using the appearance quality detector 1000 according to the embodiment of the second aspect of the present invention comprises the following steps:

Starting the grain appearance quality detector 1000;

Feeding grains to be detected into a feeding control system 2, wherein the feeding control system 2 conveys the grains to the upper surface of a rotating transparent turntable 101 according to a single-layer single-row discharging order;

The transparent turntable 101 rotates to convey the grains to be detected to the grain multi-feature recognition system 3;

the grain multi-feature recognition system 3 triggers imaging, acquires a plurality of face images of grain particles passing through a station detection point, and transmits the acquired images to the main control module to determine whether the grain particles belong to imperfect grain categories or perfect grain categories;

If the grain particles belong to the imperfect grain class, when the grain particles belonging to the imperfect grain class reach the corresponding station of the first cleaning assembly 401 under the rotation of the transparent turntable 101, the first cleaning assembly 401 cleans the grain particles belonging to the imperfect grain class from the transparent turntable 101, so that the grain particles belonging to the imperfect grain class are cleaned and enter the corresponding weighing module 501;

If the grain particles belong to the perfect grain class, when the grain particles belonging to the perfect class 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 grain particles belonging to the perfect class from the transparent turntable 101 together with the floating and sedimentary objects on the upper surface of the transparent turntable 101, so that the grain particles belonging to the perfect class are cleaned and enter the corresponding weighing module 501;

and after all the grains to be detected are detected, the main control module collects the final data of the corresponding weighing module 101 and calculates the detection result.

Since the grain appearance quality detector 1000 according to the first embodiment of the present invention is used for detecting grain appearance quality, the detection method of the grain appearance quality detector 1000 according to the second embodiment of the present invention has the same technical effects as the grain appearance quality detector 1000 according to the first embodiment of the present invention, and is not described here again.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A grain appearance quality detector, comprising:

2. The grain appearance quality detector of claim 1, wherein the feed control system comprises a storage hopper, a feed distribution module, a discharge hopper, and a vibration plate; wherein the storage hopper is used for storing grains; the material distribution module comprises a material distribution base, at least three material distribution stirring sheets, a rotating shaft and a driving unit; the top and the bottom of the material distributing base are respectively provided with a feed inlet and a discharge outlet correspondingly, the material distributing base is arranged below the storage hopper, and the feed inlet is connected with the lower end of the storage hopper; the material distributing base is provided with a hollow cavity with a central axis extending horizontally, the rotating shaft and the hollow cavity are concentrically arranged in the hollow cavity, and at least three material distributing poking sheets are positioned in the hollow cavity and uniformly distributed and fixed on the rotating shaft along the circumferential direction of the rotating shaft; the driving unit is arranged outside the material distributing base and connected with the rotating shaft so as to drive the rotating shaft to rotate; the discharging hopper is arranged below the material distribution module, and the upper end of the discharging hopper is connected with the discharging port; the vibration disc is arranged below the discharge hopper and is used for receiving grains sliding down along the discharge hopper and conveying the grains to the transparent rotary disc according to a single-layer single-row discharge order.

3. The grain appearance quality detector of claim 2, wherein the feed control system further comprises a detector for detecting the amount of grain in the vibratory pan to control the activation and suspension of the drive unit to ensure that the amount of grain in the vibratory pan is in a suitable range so that grain particles in the vibratory pan can be transported out along the spiral track on the side wall of the vibratory pan in a single-layer single-row discharge order under vibration of the vibratory pan.

4. A grain appearance quality detector according to claim 3, wherein the spiral track comprises a rising spiral track and a sinking spiral track connected at the end of the rising spiral track, the end of the sinking spiral track is connected with 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 is close to the transparent turntable.

5. The grain appearance quality detector of claim 1, wherein the grain multi-feature identification system comprises a first photographing assembly and a second photographing assembly; the first photographing assembly is located on the upper side of the transparent turntable, the first photographing assembly comprises a plurality of first cameras, the plurality of first cameras are obliquely arranged around the vertical line of the station detection point along the circumference at intervals, the plurality of first cameras are aligned to the station detection point, and the distances from the plurality of first cameras to the station detection point are respectively the optimal focal length of the corresponding first cameras; the second photographing assembly is located at the lower side of the transparent turntable and comprises a second camera, the second camera is vertically aligned to the station detection point, and the distance from the second camera to the station detection point is the optimal focal length of the second camera.

6. The grain appearance quality detector of claim 5, wherein the grain multi-feature recognition system further comprises a second photosensor for triggering the one photographing assembly and the second photographing assembly to take a photographing action just before grains from the sensing position corresponding to the second photosensor reach the station detection point when grains on the transparent turntable are passing the sensing position corresponding to the second photosensor and are about to reach the station detection point.

7. The grain appearance quality detector of claim 5, wherein a number of the plurality of first cameras is 2 to 4.

8. The grain appearance quality detector of any one of claims 1-7, wherein the first cleaning assembly includes a first motor, a rotary paddle, and a third photosensor; the rotary plectrum is arranged above the transparent turntable and is arranged on the first motor, and the first motor is used for driving the rotary plectrum to rotate from the radial inner side of the transparent turntable to the radial outer side so as to enable the rotary plectrum to pick out cereal particles belonging to imperfect grain types from the transparent turntable; the photoelectric sensor is used for controlling the rotary plectrum to stop at a preset position so that the rotary plectrum does not interfere with a path through which grains pass.

9. The grain appearance quality detector of any one of claims 1-7, wherein the second cleaning assembly includes a cleaning pan and a second motor; one end face of the cleaning disc is a cleaning disc face, the cleaning disc is arranged on the upper surface of the transparent rotary disc, and the cleaning disc face is attached to the upper surface of the transparent rotary disc; the second motor is connected with the cleaning disc to drive the cleaning disc to rotate around the axis of the cleaning disc.

10. The grain appearance quality detector of any one of claims 1-7, wherein the third cleaning assembly includes a cleaning wheel and a third motor; the periphery 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 with the cleaning wheel to drive the cleaning wheel to rotate around the axis of the cleaning wheel.

11. The grain appearance quality detector of any one of claims 1-7, wherein the weighing module comprises a weigh hopper, a dam, an elastic reset, a load cell, and an automatic blanking module; the weighing hopper is not contacted with the corresponding first cleaning component or the corresponding second cleaning component and is used for receiving cereal particles picked by the corresponding first cleaning component or the corresponding second cleaning component; one end of the material blocking plate is rotationally connected with one side of the bottom outlet of the weighing hopper; the two elastic reset pieces are arranged at two sides of the other end of the striker plate, the upper ends of the two elastic reset pieces are connected with the weighing hopper, and the lower ends of the two elastic reset pieces are connected with two sides of the other end of the striker plate so that the striker plate closes the bottom outlet; the weighing hopper is arranged on the weighing sensor; the automatic blanking module is used for being separated from the striker plate when the striker plate closes the bottom outlet and used for being contacted with the striker plate and pushing away the striker plate when grains in the weighing hopper need to be discharged so as to enable the grains in the weighing hopper to fall from the bottom outlet.

12. A method for detecting a grain appearance quality using the grain appearance quality detector according to any one of claims 1 to 11, comprising the steps of:

Starting a grain appearance quality detector;