A mobile scanning type grain imperfect grain detection device

Abstract

The present invention relates to grain detection technology, and in particular to a mobile scanning type grain imperfect grain detection device. The mobile scanning type grain imperfect grain detection device of the present invention comprises a grain blanking mechanism, a scanner, an image display terminal and a two-dimensional mobile mechanism. The scanner is arranged above the two-dimensional mobile mechanism, and has a horizontally arranged scanning window on its upper part. The scanner is electrically connected to the image display terminal. The blanking end of the grain blanking mechanism extends above the scanning window. The two-dimensional mobile mechanism is transmission-connected to the scanner, and is used to drive the scanner to move in a horizontal plane, so that any part of the scanning window moves to below the blanking end of the grain blanking mechanism. Advantages: The structural design is reasonable, and the grain grains can be flexibly sorted and scanned for detection on the scanning window, which greatly improves the detection efficiency of imperfect grain grains.

Description

Technical Field

[0001] The invention relates to grain detection technology, and in particular to a mobile scanning type grain imperfect grain detection device. Background Art

[0002] Imperfect grains refer to grains that are damaged but still have edible value, including insect-damaged grains, diseased grains, broken grains, immature grains, sprouted grains and moldy grains. Imperfect grains are easily produced during the production, storage, packaging and transportation of grains, which seriously affect the quality and safety of grains. By detecting imperfect grains of grains, we can not only reasonably check the overall quality of grains, but also improve all aspects involved in the grain industry. At present, most of the quality inspections of grains are mainly manual, the speed of manual inspection is relatively slow, and the quality results of the inspections are very subjective. At this stage, there are some detection methods: acoustic signal detection of imperfect grains of grains. This method is to detect the acoustic signals generated by the collision of imperfect grains through the changes in the physical structure of imperfect grains relative to perfect grains. When collecting acoustic signals, noise interference cannot be avoided, which affects the detection; near-infrared spectroscopy can also detect imperfect grains of grains. When using this method for detection, the humidity and temperature of different samples will affect the inspection results.

[0003] In recent years, some teams have used computer vision technology and artificial intelligence methods to detect imperfect grains, but the results are not ideal and lack application conditions. Most existing detection methods use acquisition equipment to take photos of the upper and lower surfaces of imperfect grain grains, process the collected images, and use relevant algorithms for analysis. However, the existing machine vision system uses a camera to take photos of grain grains from top to bottom. The entire device occupies a large space and can only perform intermittent photo detection operations on single grains. The overall operation efficiency is low and cannot meet the needs of efficient detection. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a mobile scanning type imperfect grain detection device, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A mobile scanning type imperfect grain detection device comprises a grain dropping mechanism, a scanner, an image display terminal and a two-dimensional moving mechanism. The scanner is arranged above the two-dimensional moving mechanism and has a horizontally arranged scanning window on its upper part. The scanner is electrically connected to the image display terminal. The dropping end of the grain dropping mechanism extends above the scanning window. The two-dimensional moving mechanism is transmission-connected to the scanner and is used to drive the scanner to move in a horizontal plane so that any part of the scanning window moves below the dropping end of the grain dropping mechanism.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the grain dropping end of the grain dropping mechanism extends from one end of the scanner to above it, and a material receiving box is provided at the other end of the scanner. The two-dimensional moving mechanism is used to drive the scanner and the scanning window to move in a two-dimensional plane toward both sides and both ends.

[0009] Furthermore, the scanning window is a rectangular window, and the two-dimensional moving mechanism is used to drive the scanner to move in a two-dimensional plane along the extension direction of the long side and the wide side of the scanning window.

[0010] Furthermore, the scanning window is provided with a scraper plate extending to both sides thereof, the lower end of the scraper plate is straight and in contact with the scanning window, and the scanner is provided with a translation drive mechanism connected to the scraper plate for transmission, and the translation drive mechanism is used to drive the scraper plate to translate between the two ends of the scanning window.

[0011] Furthermore, baffle plates are vertically provided at the upper parts of both sides of the scanning window respectively along the extending directions of both ends thereof, and the scraper plate is vertically provided between the baffle plates on both sides.

[0012] Furthermore, the above-mentioned translation driving mechanism is provided with two groups, and is respectively arranged on the above-mentioned baffle plates on both sides, and is respectively connected to the two ends of the above-mentioned scraper plate in transmission, and the two groups synchronously drive the above-mentioned scraper plate to translate.

[0013] Furthermore, the above-mentioned translation drive mechanism includes two pulleys, a belt and a motor. The two pulleys are respectively rotatably installed on the two ends of the outer sides of the above-mentioned baffle plates on the corresponding sides. The belt is wrapped around the outside of the two pulleys. The above-mentioned motor is arranged between one ends of the two above-mentioned baffle plates. The motor shaft passes through the above-mentioned baffle plates on the corresponding sides and is coaxially connected to the above-mentioned pulleys at the corresponding ends. The two ends of the above-mentioned scraper plate are respectively connected and fixed to the upper belts of the two above-mentioned translation drive mechanisms.

[0014] Furthermore, the above-mentioned two-dimensional moving mechanism is an electric cross slide.

[0015] Furthermore, the above-mentioned grain dropping mechanism includes a hopper, a discharge trough and a linear vibrator. The above-mentioned linear vibrator is arranged on one side of the above-mentioned scanner. The above-mentioned hopper is installed on the upper end of the above-mentioned linear vibrator, and its side close to the above-mentioned scanner is open. One end of the above-mentioned discharge trough is connected and communicated with the open side of the above-mentioned hopper, and the other end thereof extends horizontally to the top of the above-mentioned scanning window. The above-mentioned discharge trough is provided with a channel for a single row of grain to pass through along its length direction. The other end of the above-mentioned discharge trough constitutes the dropping end of the above-mentioned grain dropping mechanism.

[0016] Furthermore, the above-mentioned grain feeding mechanism also includes a discharge mechanism, which includes a rotating shaft and a material discharging member. The above-mentioned rotating shaft spans across the upper part of one end of the above-mentioned discharge trough close to the hopper, and its two ends are respectively connected to a seat body rotatably connected thereto, and the above-mentioned seat body is fixedly connected to both sides of the above-mentioned discharge trough, and one end of the above-mentioned rotating shaft is transmission-connected with a transmission mechanism for driving it to rotate, and the above-mentioned material discharging member is sleeved on the above-mentioned rotating shaft, and extends into the above-mentioned discharge trough, and is close to the bottom of the above-mentioned discharge trough, and a discharge gap is formed between the above-mentioned material discharging member and the bottom of the above-mentioned discharge trough for single grains of grain to pass through one by one.

[0017] The beneficial effects of the present invention are: reasonable structural design, flexible ability to continuously sort and scan grains on the scanning window, greatly improving the detection efficiency of imperfect grains, and better and more stable image acquisition effect by scanning, and higher accuracy of image results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the mobile scanning type imperfect grain detection device of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Grain feeding mechanism; 2. Scanner; 3. Two-dimensional moving mechanism; 4. Feeding box; 5. Scraper plate; 6. Translational driving mechanism; 11. Hopper; 12. Feeding chute; 13. Linear vibrator; 14. Feeding mechanism; 21. Baffle plate; 61. Pulley; 62. Belt; 63. Motor; 141. Rotating shaft; 142. Feeding member. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] Example: Figure 1As shown, the mobile scanning type grain imperfect grain detection device of this embodiment includes a grain dropping mechanism 1, a scanner 2, an image display terminal and a two-dimensional moving mechanism 3. The scanner 2 is arranged above the two-dimensional moving mechanism 3, and has a horizontally arranged scanning window on the upper part thereof. The scanner 2 is electrically connected to the image display terminal, and the dropping end of the grain dropping mechanism 1 extends above the scanning window. The two-dimensional moving mechanism 3 is transmission-connected to the scanner 2 for driving the scanner 2 to move in a horizontal plane so that any part of the scanning window moves below the dropping end of the grain dropping mechanism 1.

[0023] The detection process is as follows:

[0024] According to the detection requirements, the scanner 2 can be driven to move through the two-dimensional moving mechanism 3, that is, the scanning window is driven to move, thereby changing the position of the blanking end (blanking position) of the grain blanking mechanism 1 relative to the scanning window, so that the single grain of grain can be arranged in a single column, a single row, an array or other various orderly arrangements on the scanning window. During the sorting (column) process, the scanner 2 scans online and transmits the image data to the image display terminal for storage. The entire scanning and detection process (mainly for the cases of imperfect grains and perfect grains of grain) does not need to wait for image acquisition, and can realize online continuous scanning and detection work. The detection efficiency is greatly improved compared with traditional technologies. Moreover, compared with existing equipment, the volume is much reduced and the flexibility is greatly improved.

[0025] As a preferred embodiment, the feeding end of the grain feeding mechanism 1 extends from one end of the scanner 2 to above it, and a receiving box 4 is provided at the other end of the scanner 2. The two-dimensional moving mechanism 3 is used to drive the scanner 2 and the scanning window to move in a two-dimensional plane toward both sides and both ends thereof.

[0026] In this implementation, the components in the entire system are reasonably distributed and compact, and are easy to perform efficient scanning and detection work.

[0027] It should be noted that the receiving box 4 selects an appropriate box according to the situation of the grain sorting and detection on the scanning window. Specifically, if the grain is sorted in an array on the scanning window, the receiving box 4 should be a box body with sub-receiving cavities arranged in a row inside, so that each sub-receiving cavity can correspond to a column of grain grains, which is convenient for tracing the detection results. If they are arranged in a single row, the receiving box 4 only needs to have one receiving cavity. If they are arranged in a row, a box body with multiple sub-receiving cavities can also be selected.

[0028] The above-mentioned image display terminal can be an existing industrial computer, etc., which is a prior art and will not be described in detail here.

[0029] Preferably, the scanning window is a rectangular window, and the two-dimensional moving mechanism 3 is used to drive the scanner 2 to move in a two-dimensional plane along the extension direction of the long side and the wide side of the scanning window, wherein the shape of the scanning window is regularly designed, which facilitates the orderly arrangement detection operation of single grains of food thereon, and facilitates the subsequent tracing of detection results.

[0030] As a preferred embodiment, the scanning window is provided with a scraper plate 5 extending to both sides thereof, the lower end of the scraper plate 5 is straight and in contact with the scanning window, and the scanner 2 is provided with a translation drive mechanism 6 which is transmission-connected to the scraper plate 5, and the translation drive mechanism 6 is used for driving the scraper plate 5 to translate between the two ends of the scanning window.

[0031] In this embodiment, the scraper plate 5 is designed to automatically remove the grains through the scraper plate 5 after the grains are sorted, scanned and inspected in the scanning window, so as to perform the next inspection operation.

[0032] Preferably, baffle plates are vertically provided at the upper parts of both sides of the scanning window respectively along the extending directions of both ends thereof, and the scraper plate 5 is vertically arranged between the baffle plates on both sides.

[0033] In this solution, the baffle plate is designed to prevent the grains that fall on the edge of the scanning window from falling outside the scanning window. At the same time, it limits the range of grain falling and defines the scraping area of ​​the scraper plate 5, so that the entire falling material detection and cleaning work can be carried out smoothly and orderly.

[0034] As a preferred embodiment, the above-mentioned translation drive mechanism 6 is provided with two groups, and is respectively arranged on the above-mentioned baffle plates on both sides, and is respectively connected to the two ends of the above-mentioned scraper plate 5 in transmission, and the two groups synchronously drive the above-mentioned scraper plate 5 to translate.

[0035] In this embodiment, the design of the two sets of translation drive mechanisms 6 can drive the scraper plate 5 to translate smoothly along the scanning window to clean the grains that have been detected, which is very convenient and effective.

[0036] More preferably, the above-mentioned translation drive mechanism 6 includes two pulleys 61, a belt 62 and a motor 63. The two above-mentioned pulleys 61 are respectively rotatably installed on the two ends of the outer side of the above-mentioned baffle plate on the corresponding side, and the belt 62 is wrapped around the outside of the two above-mentioned pulleys 61. The above-mentioned motor 63 is arranged between one ends of the two above-mentioned baffle plates, and its motor shaft passes through the above-mentioned baffle plate on the corresponding side and is coaxially connected to the above-mentioned pulley 61 at the corresponding end. The two ends of the above-mentioned scraper plate 5 are respectively connected and fixed to the upper belts of the two above-mentioned translation drive mechanisms 6.

[0037] In this solution, the translation drive mechanism 6 uses a belt-type translation to drive the scraper plate 5 to move, and its stability is good. Of course, it can also be replaced by a cylinder, an electric push rod, or a screw transmission pair and other mechanisms or products with similar functions and effects.

[0038] Preferably, the two-dimensional moving mechanism 3 is an electric cross slide.

[0039] As a preferred embodiment, the grain dropping mechanism 1 includes a hopper 11, a discharge chute 12 and a linear vibrator 13, the linear vibrator 13 is arranged on one side of the scanner 2, the hopper 11 is installed on the upper end of the linear vibrator 13, and its side close to the scanner 2 is open, one end of the discharge chute 12 is connected and communicated with the open side of the hopper 11, and the other end thereof extends horizontally to the top of the scanning window, and a channel for a single row of grain to pass through is provided in the discharge chute 12 along its length direction, and the other end of the discharge chute 12 constitutes the dropping end of the grain dropping mechanism 1.

[0040] In this embodiment, grains are put into the hopper 11, and under the vibration of the linear vibrator 13, the grains enter the discharge chute 12. Because the width of the discharge chute 12 in this scheme can only allow a single grain to pass through, under the limitation of the discharge chute 12, the grains will be arranged into single grains in the discharge chute 12 and fall onto the scanning window one by one. This design is relatively reasonable and facilitates the good sorting and scanning detection process of single grains.

[0041] More preferably, the grain feeding mechanism 1 also includes a discharge mechanism 14, which includes a rotating shaft 141 and a material discharging member 142. The rotating shaft 141 spans across the upper side of one end of the discharge trough 12 close to the hopper 11, and its two ends are respectively connected to a seat body rotatably connected thereto, and the seat body is fixedly connected to both sides of the discharge trough 12, one end of the rotating shaft 141 is transmission-connected with a transmission mechanism for driving its rotation, the material discharging member 142 is sleeved on the rotating shaft 141, and extends into the discharge trough 12, and is close to the bottom of the discharge trough 12, and a discharge gap is formed between the material discharging member 142 and the bottom of the discharge trough 12 for single grains of grain to pass through one by one.

[0042] In this solution, the grains are arranged in single grains in the discharge trough 12 under the promotion of the sample arrangement mechanism 14, ensuring that the grains fall onto the scanning window one by one. Specifically, the discharge gap between the material selector 142 and the bottom of the discharge trough 12 is constant. When the grains pass through the discharge gap, only a single grain can pass through at a time under the restriction of the material selector 142, so that the grains finally enter the discharge trough 12 one by one in an orderly manner in a linear shape, and fall off one by one from the drop port. The whole design is relatively reasonable and conducive to the stable sorting of grains.

[0043] The longitudinal section of the above-mentioned discharge trough 12 can be a U-shape with a flat bottom, which is suitable for grains with larger particle sizes; or a U-shape with an arc-shaped concave bottom, which is suitable for spherical grains; or a V-shape with a longitudinal section, which is suitable for grains with smaller particle sizes; the longitudinal section is an isosceles trapezoid with the bottom facing upward, which is suitable for flat grains such as corn kernels.

[0044] The above-mentioned discharge trough 12 can also be set as a trough with a trough width that can accommodate multiple columns of grain for feeding together. The widest trough width can be consistent with the width of the scanning window. The two-dimensional moving mechanism 3 can only drive the scanner 2 to drive the scanning window to move in one direction (that is, towards the direction of approaching or away from the blanking end of the discharge trough 12), thereby realizing simultaneous scanning and detection of multiple columns of blanking.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile scanning type imperfect grain detection device, characterized in that: The invention comprises a grain feeding mechanism (1), a scanner (2), an image display terminal and a two-dimensional moving mechanism (3); the scanner (2) is arranged above the two-dimensional moving mechanism (3) and has a horizontally arranged scanning window on its upper part; the scanner (2) is electrically connected to the image display terminal; the feeding end of the grain feeding mechanism (1) extends above the scanning window; the two-dimensional moving mechanism (3) is transmission-connected to the scanner (2) and is used to drive the scanner (2) to move in a horizontal plane so that any part of the scanning window moves to below the feeding end of the grain feeding mechanism (1); the feeding end of the grain feeding mechanism (1) extends from one end of the scanner (2) to above it; the scanner (2) is electrically connected to the image display terminal; the feeding end of the grain feeding mechanism (1) extends from one end of the scanner (2) to above it; the scanner (2) is electrically connected to the image display terminal; the two-dimensional moving mechanism (3) is transmission-connected to the scanner (2) and is used to drive the scanner (2) to move in a horizontal plane so that any part of the scanning window moves to below the feeding end of the grain feeding mechanism (1); The other end of the scanner (2) is provided with a material receiving box (4), and the two-dimensional moving mechanism (3) is used to drive the scanner (2) and the scanning window to move in a two-dimensional plane toward both sides and both ends thereof; the scanning window is a rectangular window, and the two-dimensional moving mechanism (3) is used to drive the scanner (2) to move in a two-dimensional plane along the extension direction of the long side and the wide side of the scanning window, so that single grains of food are arranged in a single column and a single row on the scanning window; the scanning window is provided with a scraper plate (5) extending to both sides thereof, the lower end of the scraper plate (5) is straight and in contact with the scanning window, and the scanner (2) is provided with a translation driving mechanism (6) connected to the scraper plate (5) in a transmission manner, and the translation driving mechanism (6) is used to drive The scraper plate (5) translates between the two ends of the scanning window; baffle plates are vertically arranged at the upper parts of both sides of the scanning window along the extending directions of the two ends, and the scraper plate (5) is vertically arranged between the baffle plates on both sides; the translation driving mechanism (6) comprises two pulleys (61), a belt (62) and a motor (63); the two pulleys (61) are rotatably mounted on the two ends of the outer side of the baffle plates on the corresponding sides, the belt (62) is wrapped around the two pulleys (61), the motor (63) is arranged between one end of the two baffle plates, the motor shaft passes through the baffle plates on the corresponding sides, and is coaxially connected to the pulleys (61) at the corresponding ends; the two ends of the scraper plate (5) are respectively The grain dropping mechanism (1) is connected and fixed to the upper belts of the two translation drive mechanisms (6); the grain dropping mechanism (1) comprises a hopper (11), a discharge trough (12) and a linear vibrator (13); the linear vibrator (13) is arranged on one side of the scanner (2); the hopper (11) is installed on the upper end of the linear vibrator (13); the side close to the scanner (2) is open; one end of the discharge trough (12) is connected and communicated with the open side of the hopper (11); the other end thereof extends horizontally to the top of the scanning window; a channel for a single row of grain to pass through is provided in the discharge trough (12) along its length direction; the other end of the discharge trough (12) constitutes the dropping end of the grain dropping mechanism (1);The grain feeding mechanism (1) further comprises a sample discharging mechanism (14), the sample discharging mechanism (14) comprising a rotating shaft (141) and a material discharging member (142), the rotating shaft (141) spans above one end of the discharging trough (12) close to the hopper (11), and its two ends are respectively connected to a seat body rotatably connected thereto, and the seat body is fixedly connected to both sides of the discharging trough (12), one end of the rotating shaft (141) is transmission-connected to a transmission mechanism for driving the same to rotate, the material discharging member (142) is sleeved on the rotating shaft (141), and extends into the discharging trough (12), and is close to the bottom of the discharging trough (12), and a discharging gap is formed between the material discharging member (142) and the bottom of the discharging trough (12) for single grains of grain to pass through one by one. ; 2. The mobile scanning type imperfect grain detection device according to claim 1, characterized in that: The translation drive mechanism (6) is provided with two groups, and is respectively arranged on the baffle plates on both sides, and is respectively connected to the two ends of the scraper plate (5) in a transmission manner, and the two groups synchronously drive the scraper plate (5) to translate.

3. A mobile scanning type imperfect grain detection device according to claim 1 or 2, characterized in that: The two-dimensional moving mechanism (3) is an electric cross slide.

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