CN116106568A - Grain sampling and detecting system - Google Patents

Abstract

The invention relates to the field of grain detection equipment, in particular to a grain sampling and detecting system capable of realizing parallel detection of two or more than two different grain types, thereby greatly improving the equipment utilization rate and the detection efficiency, wherein a detecting part comprises a sample bin and a sample dividing module, a grain seed identifying module is arranged at a dividing and returning part, the detecting part also comprises a robot workstation and a temporary storage module of a sample to be detected, the temporary storage module of the sample to be detected comprises at least two temporary storage tanks of the sample to be detected, and the types of the grain to be detected are at least two types, and only one grain is temporarily stored in each temporary storage tank of the sample to be detected; after grain class identification module carries out discernment to grain class, grain transport to corresponding sample temporary storage jar that awaits measuring and deposits, when needs detect the grain of corresponding class, carries the detection area of inspection part to corresponding sample temporary storage jar that awaits measuring through the robot workstation and inspects. The invention is especially suitable for the high-efficiency sampling and detecting process of multiple grain types.

Description

Grain sampling and detecting system

Technical Field

The invention relates to the field of grain detection equipment, in particular to a grain skewing detection system.

Background

In the domestic grain purchasing and warehousing process, the incoming grains are mainly in vehicle bulk materials or bags, wherein the grains are required to be sampled and index checked, and the grain quality of the grain purchasing and warehousing is ensured. The main grain types in China comprise rice, wheat, corn and soybean, and the general process flow of the warehousing process is as follows: sampling, sample separation, quality index detection, weighing and result judgment. The sampling, sample separation and quality index inspection are indispensable links in the warehousing link, and the grain price judges the grain grade according to the sample inspection index and related standards; meanwhile, in grain harvesting seasons, the storage vehicles are more, the grain types are more, the quality inspection indexes comprise indexes such as moisture, impurities, off-grain brown rice, coarse yield, whole polished rice rate and yellow grain rice of the rice, impurities, moisture, volume weight, imperfect grains and mildewed grains of the corn, impurities, minerals, moisture, volume weight and imperfect grains of the wheat, impurities, moisture, perfect grains, damaged grains and heat loss grains of the soybean, and the like, and the detection workload is large.

The existing sampling detection system cannot detect a plurality of grain samples simultaneously due to structural limitation, namely, only one grain can be detected in one complete detection process. This results in that the whole detection line equipment needs to wait for the completion of the whole detection process after completing the own process, and then can detect another kind of grain, which greatly limits the detection efficiency and reduces the detection efficiency.

Disclosure of Invention

The invention aims to solve the technical problem of providing a grain sampling and detecting system which can realize parallel detection of two or more than two different grain samples, thereby greatly improving the utilization rate and the detection efficiency of equipment.

The technical scheme adopted for solving the technical problems is as follows: the grain sampling and detecting system comprises a sampling part, a dividing and grain returning part and a detecting part which are sequentially communicated in sequence, and comprises a control platform, wherein the control platform is used for carrying out coordinated control on the sampling part, the dividing and grain returning part and the detecting part, the detecting part comprises a sample bin and a sample dividing module, the dividing and grain returning part is provided with a grain type identification module, the detecting part also comprises a robot workstation and a sample temporary storage module to be detected, the sample temporary storage module to be detected comprises at least two sample temporary storage tanks to be detected, and the grain types to be detected are at least two, and only one grain is temporarily stored in each sample temporary storage tank to be detected; after grain class identification module carries out discernment to grain class, grain transport to corresponding sample temporary storage jar that awaits measuring and deposits, when needs detect the grain of corresponding class, carries the detection area of inspection part to corresponding sample temporary storage jar that awaits measuring through the robot workstation and inspects. The temporary storage module for the sample to be detected is arranged on the detection part, so that different types of grains can be separately stored after the early-stage identification and distinction, and thus, the sampling collection of the grains of different types in the early stage can be continuously realized, that is, the new sampling collection is not required to be started after the end of the subsequent detection. Meanwhile, due to the existence of the temporary storage module, the subsequent detection equipment can continuously detect the same detection items of different types of grains, and the utilization rate of the detection equipment is greatly improved.

Further, the grain seed identification module is arranged at the front end of the temporary storage hopper feed inlet of the shrinkage grain returning part, and comprises a transparent glass pipeline, a camera, a light supplementing light source and a protective shell. As a core component for realizing grain classification, the grain classification recognition module is arranged at the front end of the feeding port of the temporary storage hopper of the shrinkage grain returning part, so that different grains are ensured to be recognized and classified, and a foundation is provided for the follow-up classified temporary storage and detection process paths of different grains.

Further, the robot workstation is a robotic arm. Generally, the temporary storage tank for the sample to be detected is clamped and conveyed to the required detection equipment through the mechanical arm, so that the use efficiency of the robot workstation and each detection equipment is greatly improved.

Further, the detection area of the inspection part comprises an impurity detection module, the impurity detection module comprises a vibrating screen module, a screen is arranged in the vibrating screen module, and the impurity detection module is fixed through a mounting bracket. Due to the earlier grain classification, the impurity detection module can rapidly detect the impurity content of another kind of grain after finishing the impurity content detection of one kind of grain, thereby greatly improving the use efficiency of the impurity detection module.

Further, the vibration sieve module comprises at least one of a rice vibration sieve module, a wheat vibration sieve module and a corn and soybean vibration sieve module. The corn vibrating screen module is used for vibrating screen treatment of the rice, the wheat vibrating screen module is used for vibrating screen treatment of the wheat, and the corn and soybean vibrating screen module can be used commonly in corn or soybean treatment. In order to realize detection treatment of various grain types, the vibrating screen modules corresponding to the corresponding grain types can be flexibly selected, so that a flexible detection process is realized. For example: when the rice and wheat seeds and grains need to be detected, a rice vibrating screen module and a wheat vibrating screen module are arranged in the vibrating screen module; when the detection of wheat, corn and soybean is needed, a wheat vibrating screen module and a corn and soybean vibrating screen module are arranged in the vibrating screen module.

Further, the detection area of the detection part comprises at least one module of a soybean broken grain separation module, a grain visual detection module, a sample packing module, a sample discarding module, a weighing module, a water volume weight detection module, a fixed proportion sample dividing module, a receiving cup and a rice sample reprocessing module. When the detection type of the detection area of the detection part is actually arranged, the detection type can be flexibly adjusted according to the actual detection requirement. Wherein, for the detection of common rice, corn, wheat and soybean, corresponding detection equipment can be designed. Because the temporary storage module of the sample to be detected is used as an example, the moisture volume weight detection module can be used for detecting the moisture volume weight of the wheat immediately after the moisture volume weight detection of the corn is finished, namely, the moisture volume weight detection of the wheat is started after all the detection is finished without waiting for the corn.

Further, the sample packing module comprises a screwing machine, a conveying belt, a packing tank storage rack, a packing tank, a jacking mechanism, a receiving hopper and a code writer. In order to ensure that the process of re-inspection and the like can be carried out after the detection of the sample, a part of the sample can be stored in a packing tank. The sample packing module can automatically realize corresponding sample packing and storing operation, and the overall efficiency of detection is greatly improved.

Further, the inspection part comprises an independent cabinet body, the independent cabinet body is rectangular in bottom surface shape, the sample temporary storage module to be inspected and the robot workstation are arranged in the middle of the independent cabinet body, the sample bin and the sample dividing module are arranged on one side of the independent cabinet body, and the detection area of the inspection part is arranged on the other side of the independent cabinet body. The arrangement mode of the cabinet body is adopted, so that the space utilization is more reasonable. The temporary storage module for the sample to be detected and the robot workstation are arranged in the middle of the cabinet body, so that the temporary storage module for the sample to be detected can well play a role in supporting the temporary storage, namely, the temporary storage module for different grain types can be well distinguished and stored, the robot workstation can flexibly allocate the detection flow according to the use state of the follow-up detection equipment, and the flexibility of detection and the rationality of the detection path are greatly improved.

Further, divide the appearance module to include into hopper, push-pull valve, divide appearance main part, vibrator, divide the grain part of returning to include temporary storage hopper, discharge valve, grain division machine, leave appearance weighing machine and support body.

Further, the grain classes include rice, corn, wheat, and soybean. The device not only can carry out high-efficiency detection on the conventional four grains, but also can detect more grains according to the requirement.

The beneficial effects of the invention are as follows: in the existing grain sampling system, the detection system is generally designed in series, namely, one kind of grain starts from sampling, and the whole sampling system is required to be occupied until all detection is completed, so that the flexibility of equipment in the system is low, the superposition and upgrading of other detection index modules are not facilitated, the detection system cannot adapt to the detection of multiple grains, and the detection index is single and cannot cover the quality index. In the scheme of the application, firstly, grains are identified and distinguished through the grain type identification module, and then, different grains are respectively stored in the corresponding temporary storage tanks of the samples to be detected. By means of the temporary storage design, continuous sampling collection of different types of grains can be achieved in the sampling stage, various subsequent grain detection equipment can be flexibly combined with corresponding grain varieties, and accordingly all parts of the whole system are in an efficient utilization state, and detection efficiency of multiple grain varieties is greatly improved.

The scheme has the following specific beneficial effects: 1. the system takes the robot technology as the core, combines the image recognition technology and the information technology, and can realize the vehicle warehouse-in and skewing inspection, and the whole process is unmanned, efficient and intelligent. The robot is adopted to transfer the test sample to each detection station, and the structure design of the test end is simple and the arrangement is compact. 2. The system can detect a plurality of samples simultaneously and is provided with a plurality of sample reserving sample tanks, so that the detection efficiency is high. The grain seeds can be dynamically and automatically identified, the detection process route can be intelligently planned, the detection path can be optimized, multiple lines are parallel, and the detection efficiency can be further improved. 3. The scheme is suitable for image recognition quick detection equipment, moisture and volume weight detection equipment for detecting various grains, can detect moisture, volume weight, impurities, brown rice outside grains, imperfect grains, mildewed grains, mineral substances, whole polished rice, huang Limi, heat loss grains and the like, and can be suitable for various grains and cover quality indexes. 4. The module design is adopted, other detection index modules can be increased or decreased as required, equipment is convenient to upgrade, the flexibility is high, and the potential of subsequent upgrading and adjustment is larger. The invention is especially suitable for the high-efficiency sampling and detecting process of multiple grain types.

Drawings

Fig. 1 is a schematic layout of the system of the present invention.

Fig. 2 is a schematic view of the reduced grain return portion of the present invention.

Fig. 3 is a schematic view of the grain seed identification module of the present invention.

Fig. 4 is a schematic view of a sample retention weighing mechanism of the present invention.

Fig. 5 is a first schematic illustration of the inspection portion of the present invention.

FIG. 6 is a second schematic illustration of the inspection portion of the present invention.

FIG. 7 is a schematic diagram of a sample silo and a sample separation module of the invention.

Fig. 8 is a schematic diagram of a sample packing module of the present invention.

Fig. 9 is a schematic diagram of an impurity detection module of the present invention.

Fig. 10 is a top view of fig. 9.

Marked in the figure as: the grain sample section 1, the division and grain returning section 2, the inspection section 3, the control platform 4, the auxiliary equipment 5, the division mechanism 21, the reject temporary storage bin 23, the grain sample identification module 24, the division mechanism cabinet 25, the temporary storage hopper 211, the discharge valve 212, the grain division machine 213, the sample reserving weighing mechanism 214, the support frame body 215, the grain returning pipeline 222, the residual grain returning mechanism discharger 223, the transparent glass pipeline 241, the camera 242, the light supplementing source 243, the protective shell 244, the weighing sensor 2141, the weighing mechanism storage bin 2142, the sample temporary storage bin 2413, the support seat 2144, the sample bin 301, the sample dividing module 302, the to-be-inspected sample temporary storage module 303, the impurity detection module 304, the proportional dividing sample module 305, the rice sample reprocessing module 306, the soybean broken grain separation module 307, the grain vision detection module 308, the sample packing module 309, the reject module 310, the weighing module 311, the robot workstation 312, the moisture content weight detection module 313, the receiving cup 314, the independent frame body 31093, the tank storage frame 3093, the suction pipeline 313, the inlet detection module 30234, the inlet detection module 30231, the support frame 3030231, the vibration-type support 3030303030304, the vibration-absorbing mechanism 3030303040, the vibration-type support 303040, the vibration-controllable vibration-type vibration-absorbing mechanism 3040, the vibration-type vibration-absorbing device 30303040, the vibration-type vibration-absorbing device 30303030304, the vibration-type support 30303040, the vibration-type 303040, the vibration-absorbing device 3030303060, the vibration-type, the vibration-absorbing device 30303060, the vibration-and the vibration-absorbing device 3060.

Detailed Description

The invention will be further described with reference to the drawings and examples.

As shown in fig. 1 to 10, the schematic diagrams of the system are shown, and each detection function of the system can be flexibly set according to actual needs, for example, image recognition rapid detection equipment, moisture and volume weight detection equipment suitable for detecting multiple grains, and related detection devices for detecting parameters such as moisture, volume weight, impurities, brown rice outside the grains, imperfect grains, moldy grains, minerals, whole polished rice, huang Limi, heat loss grains and the like can be also set, so that the problems that some automatic detection equipment cannot be suitable for the multiple grains, detection indexes are single and quality indexes cannot be covered at present are solved. The system mainly comprises a sampling part 1, a dividing grain returning part 2, a checking part 3, a software control platform 4 and auxiliary equipment 5. The system can automatically complete vehicle positioning identification, automatic sample sampling, intelligent shrinkage, automatic transfer, residual material return, packaging and retention, sample processing and transfer, quick quality index inspection and sample discarding collection. Quality detection indexes of acquisition links: the indexes such as moisture, impurities, brown rice outside the grains, coarse yield, whole polished rice rate, yellow grain rate, volume weight, imperfect grains, mildew grains, complete grains, damaged grains, heat loss grains and the like are automatically and rapidly checked and data are uploaded. The system control platform can automatically monitor and control the automatic operation of the system and can perform remote interaction and control. The control system of the software control platform 4 adopts a PLC as an intelligent control center, intelligent control is realized on links such as sampling, dividing, grain returning, feeding, inspection, sample reserving, cleaning and the like, the intelligent control software system can realize state reading and remote automatic control on all-link control nodes of equipment such as an industrial robot, dividing equipment, grain returning device, a fan, dust removing equipment, inspection equipment and the like, meanwhile, according to inspection process data, the quality grade of grains is automatically calculated, the quality grade of the grains is automatically determined, one-to-one automatic association of numbers of samples to be inspected, the inspection results and the like is realized, and the whole process unmanned is realized.

In actual operation, a driver firstly drives a transport vehicle filled with grains to an intelligent sampling area, then identifies driver identity information through a self-service terminal, carries out vehicle registration, firstly identifies license plate information and scans the transport vehicle after the driver finishes vehicle information registration, randomly generates sampling coordinate points according to sampling rules, and samples the sampling coordinate points to obtain a cutting sample; then, conveying the cutting sample into a temporary storage hopper through a conveying pipeline for temporary storage; dividing the cutting sample according to proportion to obtain a primary sample, conveying the rest of the grains with the discarded samples to a grain return pipeline, and conveying the grains with the discarded samples back to a grain loading carriage through the grain return pipeline by positive pressure of a fan; then, the preliminary sample is sent to an intelligent inspection part for sample inspection to obtain inspection index data, and the inspection index data is uploaded to an upper computer; wherein the smart test portion includes one or more detection modules; the inspection index data comprises indexes such as moisture, impurities, brown rice outside the grains, coarse yield, whole polished rice yield and yellow grain, impurities, moisture, volume weight, imperfect grains and mildew grains of corn, impurities, minerals, moisture, volume weight and imperfect grains of wheat, impurities, moisture, perfect grains, damaged grains, heat loss grains and the like of soybean; after the grain is returned by the sampling, the unmanned weighing module weighs the transport vehicle filled with the grain. The robot work stations 312 are provided at the center of each work station, and include an industrial robot 3121 and a dedicated clamp 3122. The industrial robot is installed on the base and is fixed on the ground through expansion bolts. The special fixture adopts aluminum alloy material, and light in weight installs and uses as the executor in manipulator end, adopts the clamping jaw, and adaptable packing jar and the clamp of receiving the material cup are got. The independent cabinet 315, the cabinet is sealed well, and inside is provided with the cotton of making an uproar and removes dust the pipeline interface, and the gate sets up the safety lock, guarantees operation safety. Both sides and gate all are provided with visual window, and inside sets up monitoring camera, but real-time viewing equipment behavior.

Under the existing conventional sampling detection mode, one sampling detection line can only sample and detect one grain at a time. Such a detection method results in that the subsequent inspection device has to be idle when the sampling portion 1 performs the sampling operation, and the inspection device can start specific detection after obtaining the grain sample obtained by the sampling portion 1. In turn, when the subsequent inspection device detects a specific grain sample, the sampling part 1 at the front end also has to be idle, and after the inspection device has completely completed detecting the grain sample, the sampling part 1 can start the sampling operation on the next grain. In short, in the existing sampling system, the non-light sampling process is serial, the inspection process is also serial, and the detection of one sample is completed before the detection of the next sample can be started. By the design, the utilization rate of the whole skewing detection system equipment is always in a low state, the detection efficiency of grains is difficult to meet actual requirements, and flexible detection of multiple grains cannot be really realized.

The core of the invention is that after different kinds of grains are identified and distinguished by the grain type identification module 24, different grain samples are respectively stored in different sample temporary storage tanks to be detected, thereby effectively improving the utilization rate of the sampling device at the front end and the detection device at the rear end. Specifically, after the sampling portion 1 samples the first grain, the first grain is stored in the first temporary storage tank for the sample to be detected. At this time, the sampling part 1 can immediately collect the samples of the second grain and continuously store the samples in the temporary storage tank of the second to-be-detected sample, and the new samples can be started without waiting for the first grain to finish subsequent detection. Similarly, after the detection device at the rear end completes the detection of part of indexes of the sample in the temporary storage tank of the first sample to be detected, the system judges which index detection devices are in an idle state by detecting the running state of the devices in real time, and can start the detection of the same product parameters of the sample in the temporary storage tank of the second sample to be detected, and the detection of the next sample is not required to be started after the detection of the first sample is completed. Due to the existence of the temporary storage module 303 of the sample to be detected, different grain types can be temporarily stored and coordinated in the detection part 3, and the original serial sampling system is changed into the parallel sampling system. Wherein, not only the sample inspection is parallelly connected, and the testing process is parallelly connected also to the flexibility of the system of examining of having improved the sample greatly, also improved the efficiency that many grain types detected.

The dividing and returning part 2 shown in fig. 2 comprises a dividing mechanism 21, a residual grain returning mechanism 22, a temporary storage bin 23 for waste materials, a grain type identification module 24 and a dividing mechanism cabinet 25. The dividing mechanism 21 comprises a temporary storage hopper 211, a discharge valve 212, a grain dividing machine 213, a sample weighing mechanism 214 and a support frame 215. The whole body is arranged on the supporting frame body. Grain seeds are identified in the negative pressure suction process of the sample grain, the sample grain enters a temporary storage hopper, after the sample is contracted and reserved, the redundant grain is conveyed back to the vehicle, and the reserved sample enters an intelligent inspection part 3 for index detection.

As shown in fig. 3 to 4, the grain seed identification module 24 is disposed at the front end of the feed inlet of the temporary storage hopper, and the other end is in flange connection with the tail end of the conveying pipeline of the sampling module. The grain type recognition module 24 includes a transparent glass pipe 241, a camera 242, a light supplementing light source 243, a protective case 244, and the like, and determines the grain type by performing image analysis on the sucked and flowed grains. A discharge valve 212 is arranged below the temporary storage hopper 211, and the size of the opening can be adjusted. The discharge valve is in butt joint with a feed inlet of the grain dividing machine. The grain dividing machine adjusts the shrinkage ratio according to the material types, and the grain dividing machine can adopt a rotary type shrinkage structure and a reciprocating type shrinkage structure. The residual grain discharging port of the grain dividing machine is in butt joint with the residual grain returning mechanism discharger 223. The dividing machine reserving sample pipe stretches into a storage bin 2142 of the weighing mechanism, a weighing sensor 2141 is arranged below a bin flange, the weighing mechanism is integrally arranged on a supporting seat 2144 on one side of the dividing machine and is not contacted with a dividing machine chute, the weighing precision is prevented from being influenced, the weight of a sample is more than or equal to 2kg, and the consistency of the reserved sample quantity of the sample is ensured. The discharging opening of the weighing mechanism storage bin 2142 extends into the sample temporary storage bin 2143, a discharging valve is arranged, and the sample temporary storage bin 2413 is in butt joint with a sample conveying mechanism pipeline. The equipment for dividing the grain returning part is contained in a dividing mechanism cabinet body 25, the cabinet body is well sealed, and noise reduction cotton and dust removal pipeline interfaces are arranged in the cabinet body.

As shown in fig. 5 to 6, the specific inspection section 3, the intelligent inspection section 3 mainly includes: the device comprises a sample bin 301, a sample dividing module 302, a sample temporary storage module 303 to be detected, an impurity detection module 304, a fixed proportion sample dividing module 305, a rice sample reprocessing module 306, a soybean broken grain separating module 307, a grain visual detection module 308, a sample packing module 309, a sample discarding module 310, a weighing module 311, a robot workstation 312, a water volume weight detection module 313, a receiving cup 314 and an independent cabinet 315. The system can increase and decrease the workstation modules according to the grain types and the corresponding quality indexes to be detected. And the grain type recognition module 24 is used for recognizing and judging the grain type and samples subjected to shrinkage sample reserving, and the upper computer automatically plans a path according to the grain type. And the arrangement of the work stations is reasonably planned through optimizing the inspection flow and the path. The robot workstations are arranged at the central position, and the other workstations are orderly arranged along the inner side of the cabinet body in the operating range of the robot according to the process route. The sample bin 301 and the sample dividing module 302 are arranged at one corner of the cabinet body, and a flange at a feed inlet of the sample bin is connected with a discharge outlet of the sample temporary storage bin 2143 through a pipeline. And conveying the sample to a sample bin through negative pressure. The sample bin is overlapped with the sample dividing module. The sample bin is arranged above the sample dividing module, and a discharge valve 3011, a vibrator 3012 and a discharge pipe 3013 are arranged below the sample bin. The outlet of the discharging pipe is aligned with the center of the feeding hole of the sample dividing module 302, and the reserved sample falls into the sample dividing module after the valve is opened. The sample dividing module is modified and upgraded on a tripod type structure and comprises a feeding hopper 3021, a gate valve 3022, a sample dividing main body 3023 and a vibrator 3024. The reserved sample falls into the sample distributing hopper, the gate valve is opened, the vibrator operates, and the sample distributing main body equally divides the reserved sample into two parts and respectively enters the material receiving cup. The sample separation module is mounted on the support 3025 by a damper spring. One of the two divided samples is transferred to the support of the sample temporary storage module 303 to be detected by the manipulator, and the other sample is sent to the sample packaging module 309 for packaging and temporary storage. Generally, the temporary storage module 303 for samples to be detected is arranged at the middle position of the cabinet body, so that a robot can efficiently access the receiving cup, a plurality of receiving cup storage stations can be arranged, samples to be detected are sequentially stored on the support, the system counts, a plurality of parallel samples can be cached, and the sampling and detecting efficiency is improved.

As shown in fig. 8, the sample packing module 309 is provided on the cabinet door side, and includes a capping machine 3091, a conveyor 3092, a packing pot storage rack 3093, a packing pot 3094, a jacking mechanism 3095, a receiving hopper 3096, and a code writer 3097. The manipulator places the packing jar on the conveyer belt, accomplishes to uncap, returns the home position, and climbing mechanism sets up in the conveyer belt below, and when receiving the material, jack-up packing jar prevents to spill the material, and rethread manipulator presss from both sides and gets in the packing jar of receiving the material cup after bipartite, carries to screwing up the station, by sensor detection position, twists the lid, writes the sign indicating number, carries out the cabinet body.

As shown in fig. 9 and 10, the manipulator takes out the sample stored in the sample temporary storage module 303 to be inspected, and sends the sample to the impurity detection module 304 to detect the impurity first. The impurity detection module 304 is disposed adjacent to the sample separation module and includes a rice vibration screen module 3041, a wheat vibration screen module 3042, a corn and soybean vibration screen module 3043, and an impurity detection module mounting bracket 3044. The corn vibrating screen module and the wheat vibrating screen module are arranged on a support at the high bottom layer, the corn and soybean vibrating screen modules are arranged side by side, and the whole support is fixed on the ground through expansion screws to isolate vibration. The vibration screening module rotates and screens by means of vibration, the upper layer of filter screen and the lower layer of filter screen are arranged on the vibration screening module, the upper layer of coarse filter screen is used for screening out large-scale impurities, the lower layer of fine filter screen is used for filtering fine impurities, the upper layer of impurities and the lower layer of impurities enter the receiving cup through the chute, corn and soybean share one set of vibration screening machine, three layers of filter screens are arranged in total, and the size of the sieve holes can be determined according to different grain types. The general vibrating screen machine discharges too fast, and grain sample impurities can not be effectively screened, so that the impurity layer discharge port is designed into a controllable switch valve 3045, screening time is controllable, and impurity screening effect is ensured. The sieving machine is provided with a screen cleaning structure, can automatically clean the screen and prevent blockage. The screened impurities are sent to a weighing module 311 by a manipulator to weigh the impurities, and the data are transmitted to an upper computer to calculate and obtain the content of the large sample impurities.

The fixed proportion sample dividing module 305 is arranged on one side of the impurity detecting module 304, and a fixed proportion sample dividing module bracket is arranged at the bottom of the fixed proportion sample dividing module 305. The fixed proportion sample dividing module 305 adopts a grid type sample dividing structure, grains with impurities removed are poured into the fixed proportion sample dividing module 305 by the reciprocating movement of a manipulator, small samples, moisture and volume weight detection samples are obtained by fixed proportion sample dividing, and the small samples, the moisture and the volume weight detection samples are collected by a receiving cup. For wheat and corn detection, the small sample can be directly sent to the grain visual detection module 308 for visual detection, and small sample impurities, imperfect grains and mildewed grains are identified. For rice detection, the small sample is processed by a rice reprocessing module 306, and then sent to a grain visual detection module 308 to identify small sample impurities, brown rice outside the grains, imperfect brown rice grains, whole polished rice and Huang Limi. For soybean detection, the whole and broken grains are separated by a soybean broken grain separation module 307, and then fed into a grain visual detection module 308 to identify damaged and heat-lost grains.

Claims (10)

1. Grain sampling system, including sequentially communicating sampling part (1), division returns grain part (2) and inspection part (3) in proper order, including control platform (4), control platform (4) coordinate control to sampling part (1), division returns grain part (2) and inspection part (3), inspection part (3) include sample feed bin (301) and divide appearance module (302), its characterized in that: the grain reduction and return part (2) is provided with a grain type identification module (24), the inspection part (3) further comprises a robot workstation (312) and a temporary storage module (303) for samples to be inspected, the temporary storage module (303) for samples to be inspected comprises at least two temporary storage tanks for samples to be inspected, the types of grains to be inspected are at least two types, and only one grain is temporarily stored in each temporary storage tank for samples to be inspected;

after grain type identification module (24) discerns the grain class, grain is carried to corresponding sample temporary storage jar that awaits measuring and is deposited, when the grain of corresponding class needs to be detected, carries the detection area of inspection part (3) to corresponding sample temporary storage jar that awaits measuring through robot workstation (312) and carries out the inspection.

2. The grain skewer detection system of claim 1, wherein: the grain seed identification module (24) is arranged at the front end of a feed inlet of the temporary storage hopper (211) of the shrinkage grain returning part (2), and the grain seed identification module (24) comprises a transparent glass pipeline (241), a camera (242), a light supplementing light source (243) and a protective shell (244).

3. The grain skewer detection system of claim 1, wherein: the robotic workstation (312) is a robotic arm.

4. The grain skewer detection system of claim 1, 2 or 3, wherein: the detection area of inspection part (3) includes impurity detection module (304), impurity detection module (304) are including vibrating the sieve module, be provided with the filter screen in the sieve module that shakes, impurity detection module (304) are fixed through impurity detection module installing support (3044).

5. The grain skewer detection system of claim 4, wherein: the vibration screen module comprises at least one module of a rice vibration screen module (3041), a wheat vibration screen module (3042) and a corn and soybean vibration screen module (3043).

6. The grain skewer detection system of claim 1, 2 or 3, wherein: the detection area of the detection part (3) comprises at least one module of a soybean broken grain separation module (307), a grain visual detection module (308), a sample packing module (309), a sample discarding module (310), a weighing module (311), a moisture volume weight detection module (313), a fixed proportion sample dividing module (305), a receiving cup (314) and a rice sample reprocessing module (306).

7. The grain skewer detection system of claim 6, wherein: the sample packaging module (309) comprises a capping machine (3091), a conveying belt (3092), a packaging tank storage rack (3093), a packaging tank (3094), a jacking mechanism (3095), a receiving hopper (3096) and a code writer (3097).

8. The grain skewer detection system of claim 1, 2 or 3, wherein: the inspection part (3) comprises an independent cabinet body (315), the independent cabinet body (315) is rectangular in bottom surface shape, a sample temporary storage module (303) to be inspected and a robot workstation (312) are arranged in the middle of the independent cabinet body (315), a sample bin (301) and a sample dividing module (302) are arranged on one side of the independent cabinet body (315), and a detection area of the inspection part (3) is arranged on the other side of the independent cabinet body (315).

9. The grain skewer detection system of claim 1, 2 or 3, wherein: the sample dividing module (302) comprises a feeding hopper (3021), a gate valve (3022), a sample dividing main body (3023) and a vibrator (3024), and the dividing and grain returning part (2) comprises a temporary storage hopper (211), a discharge valve (212), a grain dividing machine (213), a sample reserving weighing mechanism (214) and a supporting frame body (215).

10. The grain skewer detection system of claim 1, 2 or 3, wherein: the grain classes include rice, corn, wheat, and soybean.

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