A detection device for middle GI rice particle detection

Abstract

The application relates to the technical field of rice detection, and discloses a detection equipment for medium GI rice granularity detection, which comprises a blanking assembly capable of sequentially arranging to-be-detected rice, a detection assembly capable of detecting the granularity of the to-be-detected rice sequentially arranged by the blanking assembly, and a power mechanism capable of transferring the to-be-detected rice sequentially arranged by the blanking assembly to the detection assembly for detection. The detection equipment for medium GI rice granularity detection solves the problems of rice stacking, crossing and posture confusion in traditional detection through the orderly arrangement structure of the blanking assembly, can realize independent detection of single rice without relying on a complex image segmentation algorithm, effectively avoids overlapping misjudgment, improves the granularity detection accuracy, simultaneously makes the rice enter the detection area in a unified posture, has high standardization degree of detection data, can accurately acquire multi-dimensional appearance parameters such as the length-width ratio and the projection area, and the detection result has higher reference value.

Description

Technical Field

[0001] This invention relates to the field of rice detection technology, specifically to a detection device for detecting the grain size of medium-GI rice. Background Technology

[0002] As one of the main staple foods for humans, the evaluation indicators of medium-GI rice processing quality (such as grain size, breakage rate, and length-to-width ratio) directly affect its market grading and commercial value. Therefore, accurate grain size detection of medium-GI rice is a crucial link in grain processing and trade.

[0003] Currently, existing technologies for detecting the particle size of medium-GI rice mainly fall into two categories: mechanical sieving and machine vision inspection. 1. Mechanical sieving method: This method mainly uses vibrating screens with different apertures to grade rice. Although it is simple to operate, it has the following drawbacks: First, the screen holes are prone to "clogging", which leads to a decrease in detection efficiency; Second, it cannot obtain the geometric morphological characteristics of a single grain of rice (such as aspect ratio, side projection, etc.), and can only achieve rough size classification. 2. Machine Vision Inspection Method: With the development of artificial intelligence technology, using industrial cameras to capture images of rice and then performing software analysis has gradually become mainstream. However, existing visual inspection equipment has the following shortcomings in the mechanical structure of the front-end feeding mechanism: First, when rice grains enter the detection area, they are often piled up or scattered randomly on the conveyor belt. Due to the irregular shape of the rice and the influence of surface friction, they are very easy to overlap, move closer together or cross each other. Secondly, although image processing algorithms can attempt to perform "edge segmentation", the segmentation accuracy will be greatly reduced for rice grains with severe overlap, leading to misjudgment (for example, mistaking two overlapping broken rice grains for a single whole rice grain), which affects the accuracy of particle size detection. Furthermore, the random posture of rice on the flat conveyor belt (laying flat, sideways, or upright) results in inconsistent two-dimensional projected areas captured by the camera, making it difficult to obtain standardized granular data. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a detection device for detecting the particle size of medium-GI rice, which can flatten the rice grains for detection and obtain standardized particle size data.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detection device for detecting the grain size of medium-GI rice, comprising: The feeding assembly can sequentially arrange the rice to be tested; The detection component is capable of detecting the grain size of rice particles to be tested, which are arranged sequentially by the feeding components. The power mechanism is capable of transferring the rice to be tested, which is arranged in sequence by the feeding components, to the testing components for testing. The flipping component can discharge the rice that was previously tested during the process of the power mechanism transferring the rice to be tested from the feeding component to the testing component for testing. The reset component can drive the flip component to reset after the flip component discharges the rice detected in the previous test.

[0006] Furthermore, it also includes a collection mechanism that can collect rice discharged from inside the detection component; The support assembly supports the feeding assembly, detection assembly, power mechanism, tilting assembly, reset assembly, and collection mechanism.

[0007] Furthermore, the support assembly includes a base plate, two first plates, at least one second plate, and at least one third plate. The lower ends of the two first plates, the second plate, and the third plate are all fixedly connected to the upper surface of the base plate. The two first plates are located on both sides of the middle of the base plate. The upper ends of the two first plates are connected to the feeding assembly. The upper end of the second plate is connected to the resetting assembly. The side wall of the third plate is connected to the collecting mechanism.

[0008] Furthermore, the feeding assembly includes a feeding box and a vibrating motor. The two sides of the upper end of the feeding box are fixedly connected to the upper ends of the two first plates respectively. One side of the outer wall of the feeding box is fixedly connected to the base of the vibrating motor. Several equidistant second grooves are formed inside the lower end of the feeding box. The width of the second groove is not less than the width of the rice to be tested.

[0009] Furthermore, the detection assembly includes a box, several tubes, several detection elements, and several transparent glass pieces. One side of the box is connected to a reset assembly. The outer walls of the transparent glass pieces are all fixedly connected to the inner wall of the other side of the box. The transparent glass pieces separate the interior of the box into a third groove and a cavity. One end of each tube is fixedly connected to the bottom surface of the box, and the other end of each tube is fixedly connected to the input end of an external air extraction device. A through hole is provided through the bottom surface of the third groove. The outer walls of each detection element are fixedly connected to the upper surface of the box. The detection end of the detection element is located inside the cavity and faces the third groove. The tubes, through holes, and the interior of the third groove are connected. The number of third grooves is the same as the number of second grooves, and the third grooves are aligned with the positions of the second grooves.

[0010] Furthermore, the power mechanism includes a first rod, a transmission motor, and a second rod. The outer wall of the transmission motor is fixedly connected to the side wall of the first plate. The output shaft of the transmission motor is fixedly connected to one end of the second rod. The other end of the second rod is fixedly connected to one end of the first rod. The other end of the first rod is rotatably connected to the second plate through a first bearing. The surface of the second rod is provided with a plurality of equidistant first grooves. The plurality of first grooves along the axial direction of the second rod form a group. The number of first grooves in a group is the same as the number of second grooves, and the positions of a group of first grooves and the second grooves are aligned.

[0011] Furthermore, the flipping assembly includes a ring, a fifth block, and several first blocks. One side of the ring is fixedly connected to the end of the second rod, the side wall of the fifth block is fixedly connected to the end of the box, and one end of each of the first blocks is fixedly connected at equal intervals to the outer wall of the ring, while the other end of each first block abuts against the fifth block.

[0012] Furthermore, the reset assembly includes a U-shaped block, a torsion spring, a fourth rod, and at least one second block. The outer wall of the U-shaped block is fixedly connected to the end of the second block away from the bottom plate. The other end of the U-shaped block is sleeved and fixedly connected to the outer wall of the fourth rod. The end of the fourth rod is rotatably connected to one end of the second block through a second bearing. The other end of the second block is fixedly connected to the outer wall of the box away from the third groove. The torsion spring is sleeved on the outer wall of the fourth rod, and the two ends of the torsion spring are fixedly connected to the U-shaped block and the box, respectively.

[0013] Furthermore, the collection mechanism includes a box, an anti-detachment component, and a U-shaped handle. The bottom surface of the box is slidably connected to the upper surface of the base plate. The box is located below the second rod and the box body. One side of the box abuts against the side wall of the third plate. The other side of the box is fixedly connected to the end of the U-shaped handle. The U-shaped handle is connected to the anti-detachment component.

[0014] Furthermore, the anti-detachment component includes a fourth block and a third rod. A limiting hole is provided on the upper surface of the base plate. The fourth block is sleeved and slidably connected to the surface of the U-shaped handle. One end of the fourth block is fixedly connected to one end of the third rod, and the other end of the third rod is slidably connected to the limiting hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This detection device for medium-GI rice particle size detection solves the problems of rice stacking, crossing, and chaotic posture in traditional detection by using the orderly arrangement structure of the feeding components. It can achieve independent detection of single rice grains without relying on complex image segmentation algorithms, effectively avoiding overlapping misjudgments and improving the accuracy of particle size detection. At the same time, the rice enters the detection area in a uniform posture, resulting in a high degree of standardization of detection data. It can accurately obtain multi-dimensional morphological parameters such as aspect ratio and projected area, making the detection results more valuable for reference. This detection equipment for medium-GI rice grain size detection overcomes the shortcomings of traditional mechanical screening, such as easy clogging and the need for frequent shutdowns for cleaning. Through the coordinated linkage of the power mechanism, the flipping component and the reset component, it achieves fully automated continuous operation of the feeding, detection and discharge process, improves the detection efficiency of a single batch, and does not require manual intervention, making it suitable for the online detection needs of large-scale grain processing production lines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall appearance of the invention from another perspective; Figure 3 For the present invention Figure 1 Cross-sectional schematic diagram of the middle part; Figure 4 This is a detailed connection diagram of the support component and the feeding component of the present invention; Figure 5 This is a detailed connection diagram of the power mechanism, detection component, and tilting component of the present invention; Figure 6 This is a detailed connection diagram of the various components of the power mechanism of the present invention; Figure 7 This is a detailed connection diagram of the detection component and reset component of the present invention; Figure 8 This is a side view of the detection component of the present invention; Figure 9 This is a detailed connection diagram of the various components of the collection mechanism of the present invention; Figure 10 For the present invention Figure 9 Enlarged diagram of point A in the middle.

[0017] In the picture: 1. Support assembly; 11. Base plate; 111. Limiting hole; 12. First plate; 13. Second plate; 14. Third plate; 2. Collection mechanism; 21. Box body; 22. Anti-detachment component; 221. Fourth block; 222. Third rod; 23. U-shaped handle; 3. Power mechanism; 31. First rod; 32. Drive motor; 33. Second rod; 331. First slot; 4. Detection assembly; 41. Tube body; 42. Box body; 421. Third groove; 422. Cavity; 423. Through hole; 43. Detection piece; 44. Transparent glass; 5. Feeding assembly; 51. Material bin; 511. Second tank; 52. Vibration motor; 6. Flip component; 61. Ring; 62. First block; 63. Fifth block; 7. Reset assembly; 71. U-shaped block; 72. Torsion spring; 73. Fourth rod; 74. Second block. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Please see Figures 1-10 A detection device for detecting the grain size of medium-GI rice, comprising: The feeding component 5 is capable of sequentially arranging the rice to be tested. Detection component 4 can detect the size of rice grains to be tested arranged in sequence by feeding component 5; The power mechanism 3 is capable of transferring the rice to be tested, which is arranged sequentially in the feeding components 5, to the detection components 4 for testing. The flipping component 6 can discharge the rice that was previously tested during the process of the power mechanism 3 transferring the rice to be tested arranged in sequence by the feeding component 5 to the testing component 4 for testing. The reset component 7 can drive the flip component 6 to reset after the flip component 6 discharges the rice that was previously detected; It also includes a collection mechanism 2, which is capable of collecting rice discharged from inside the detection component 4; Support component 1 supports feeding component 5, detection component 4, power mechanism 3, tilting component 6, reset component 7 and collecting mechanism 2; Specifically, when the equipment is running, the feeding component 5 first sorts and arranges the rice to be tested, so that the rice is arranged in a uniform and orderly manner to avoid stacking and crossing, thus providing standardized feeding conditions for subsequent testing. Subsequently, the power mechanism 3 is activated, smoothly transferring the rice that has been arranged in the feeding component 5 to the detection station of the detection component 4. The detection component 4 accurately collects and detects the grain size parameters of the rice that arrives at the station and outputs the corresponding grain size data. Subsequently, during the process of the power mechanism 3 conveying the next batch of rice to be tested, the flipping component 6 operates synchronously to discharge the previous batch of rice that has completed testing in the testing component 4 downwards, so as to avoid mixing of new and old rice. After the previous batch of rice is completely discharged, the reset component 7 provides a reset driving force, which drives the flipping component 6 back to the initial position, so that the detection component 4 returns to the detection state and waits to receive the next batch of rice. Finally, the rice discharged from the detection component 4 will fall into the collection mechanism 2 below for unified collection, which will facilitate subsequent centralized processing. The continuous and automated detection of rice grain size can be achieved by the cyclical cooperation of each component.

[0020] Furthermore, in order to enable the support assembly 1 to support the feeding assembly 5, the detection assembly 4, the power mechanism 3, the flipping assembly 6, the reset assembly 7, and the collection mechanism 2, as a preferred embodiment of the present invention, the support assembly 1 includes a base plate 11, two first plates 12, at least one second plate 13, and at least one third plate 14. The lower ends of the two first plates 12, the second plates 13, and the third plate 14 are all fixedly connected to the upper surface of the base plate 11. The two first plates 12 are located on both sides of the middle part of the base plate 11. The upper ends of the two first plates 12 are connected to the feeding assembly 5. The upper end of the second plate 13 is connected to the reset assembly 7. The side wall of the third plate 14 is connected to the collection mechanism 2. Specifically, such as Figures 1-3 As shown, during normal use, the base plate 11 is installed on the ground, and the first plate 12, the second plate 13 and the third plate 14 can support the feeding assembly 5, the detection assembly 4, the power mechanism 3, the flipping assembly 6, the reset assembly 7 and the collection mechanism 2, thereby ensuring the stable operation of the feeding assembly 5, the detection assembly 4, the power mechanism 3, the flipping assembly 6, the reset assembly 7 and the collection mechanism 2.

[0021] Furthermore, in order to enable the feeding assembly 5 to sequentially arrange the rice to be tested, as a preferred embodiment of the present invention, the feeding assembly 5 includes a material box 51 and a vibration motor 52. The two sides of the upper end of the material box 51 are respectively fixedly connected to the upper ends of two first plates 12, and one side of the outer wall of the material box 51 is fixedly connected to the base of the vibration motor 52. A plurality of equidistantly distributed second grooves 511 are formed inside the lower end of the material box 51, and the width of the second grooves 511 is not less than the width of the rice to be tested. Specifically, before starting the rice testing, simply pour the rice to be tested into the material box 51. The rice will naturally accumulate in the material box 51. Some of the rice may be inserted into some of the second grooves 511 along the length (i.e., from tip to tip), but some of the second grooves 511 will still not have rice inserted. Then, turn on the vibration motor 52. After the vibration motor 52 moves, the material box 51 vibrates as a whole, which will cause the other rice to slide down into the remaining second grooves 511 along the length. Then, when the power mechanism 3 runs, the rice in these second grooves 511 can be accurately transferred to the detection component 4 area for testing.

[0022] Furthermore, in order to enable the detection component 4 to detect the grain size of the rice to be tested arranged sequentially by the feeding components 5, as a preferred embodiment of the present invention, the detection component 4 includes a box body 42, a plurality of tubes 41, a plurality of detection elements 43, and a plurality of transparent glass 44. One side of the box body 42 is connected to the reset component 7, and the outer walls of the plurality of transparent glass 44 are all fixedly connected to the inner wall of the other side of the box body 42. The transparent glass 44 divides the interior of the box body 42 into a third groove 421 and a cavity 422. One end of each of the plurality of tubes 41 is fixedly connected to the bottom surface of the box body 42. The other ends of several tubes 41 are fixedly connected to the input end of an external air extraction device. A through hole 423 is provided through the bottom surface of the third groove 421. The outer walls of several detection elements 43 are fixedly connected to the upper surface of the box 42. The detection end of the detection element 43 is located inside the cavity 422 and the detection end of the detection element 43 faces the third groove 421. The tubes 41, the through hole 423 and the interior of the third groove 421 are connected. The number of third grooves 421 is the same as the number of second grooves 511, and the positions of the third grooves 421 and the second grooves 511 are aligned. Specifically, before the rice is tested, several tubes 41 are connected to the input end of an external suction device. Thus, a negative pressure suction force is continuously generated inside the third tank 421 through the tubes 41 and the through holes 423. When the power mechanism 3 rotates the arranged rice to align with the several third tanks 421, the negative pressure suction force inside the third tank 421 can accurately suck the rice inside the power mechanism 3 into the third tank 421. Then, the detection element 43 located in the cavity 422 above the third tank 421 can detect the rice in the third tank 421, thereby obtaining the geometric morphological characteristics of the rice (such as aspect ratio, side projection, etc.). It should be noted here that the detection piece 43 can be used with an industrial camera and a shadowless light source cover to perform non-contact image acquisition and calculate the particle size of rice adsorbed in the third tank 421 and in a uniform posture. In addition, when discharging rice from inside the third tank 421, the external air extraction device needs to be turned off to prevent the rice from falling out due to negative pressure suction.

[0023] Furthermore, in order to enable the power mechanism 3 to transfer the rice to be tested arranged in sequence by the feeding components 5 to the detection component 4 for detection, as a preferred embodiment of the present invention, the power mechanism 3 includes a first rod 31, a transmission motor 32, and a second rod 33. The outer wall of the transmission motor 32 is fixedly connected to the side wall of the first first plate 12. The output shaft of the transmission motor 32 is fixedly connected to one end of the second rod 33. The other end of the second rod 33 is fixedly connected to one end of the first rod 31. The other end of the first rod 31 is rotatably connected to the second first plate 12 through a first bearing. The surface of the second rod 33 is provided with a plurality of equidistantly arranged first grooves 331. The plurality of first grooves 331 along the axial direction of the second rod 33 form a group. The number of first grooves 331 in a group is the same as the number of second grooves 511, and the positions of a group of first grooves 331 and second grooves 511 are aligned. Specifically, when rice needs to be transferred, the first set of first grooves 331 of the second rod 33 is located directly below the second groove 511. Therefore, the rice in the second groove 511 will naturally slide into the first set of first grooves 331 due to gravity. Then, the drive motor 32 is turned on. The output shaft of the drive motor 32, together with the first rod 31, rotates the second rod 33 (e.g., 90°). At this time, the rice in the first set of first grooves 331 can be rotated to a position aligned with the third groove 421. Then, it can be sucked into the third groove 421 by the negative pressure in the third groove 421 for detection. When the first group of rice rotates to the position of the third trough 421, the second group of rice will fall into the second group of the first trough 331 in the same way. Then the drive motor 32 starts again. At this time, since the first group of rice has just been detected in the third trough 421, when the second group of rice in the second rod 33 starts to rotate, the flipping component 6 can discharge the first group of rice in the third trough 421. Then the reset component 7 rotates the box 42 back to its original position. When the second group of rice rotates to the direction of the first trough 331, the above steps can be repeated.

[0024] Furthermore, in order to enable the flipping component 6 to discharge the rice that was previously tested during the process of the power mechanism 3 transferring the rice to be tested arranged in the order of the feeding component 5 to the testing component 4 for testing, as a preferred embodiment of the present invention, the flipping component 6 includes a ring body 61, a fifth block 63 and a plurality of first blocks 62. One side of the ring body 61 is fixedly connected to the end of the second rod body 33, the side wall of the fifth block 63 is fixedly connected to the end of the box body 42, one end of the plurality of first blocks 62 is fixedly connected at equal intervals to the outer wall of the ring body 61, and the other end of the first blocks 62 abuts against the fifth block 63; Specifically, when the second group of rice rotates with the second rod 33, the first block 62 on the ring 61 will abut against the fifth block 63 at the end of the box 42, as shown below. Figure 5 As shown, the fifth block 63 is tilted, so when the first block 62 rotates with the second rod 33, it will press the fifth block 63 and the box 42 downward. The box 42 is kept in balance by the reset component 7. Therefore, when the external force presses down, the third groove 421 of the box 42 can move downward. When the third groove 421 is out of the blocking range of the second rod 33, the rice in the third groove 421 can fall naturally into the collection mechanism 2 for collection.

[0025] Furthermore, in order to enable the reset component 7 to drive the flipping component 6 to reset after the flipping component 6 discharges the rice from the previous detection, as a preferred embodiment of the present invention, the reset component 7 includes a U-shaped block 71, a torsion spring 72, a fourth rod 73, and at least one second block 74. The outer wall of the U-shaped block 71 is fixedly connected to one end of the second plate 13 away from the bottom plate 11. The other end of the U-shaped block 71 is sleeved and fixedly connected to the outer wall of the fourth rod 73. The end of the fourth rod 73 is rotatably connected to one end of the second block 74 through a second bearing. The other end of the second block 74 is fixedly connected to the outer wall of the box 42 away from the third groove 421. The torsion spring 72 is sleeved on the outer wall of the fourth rod 73. The two ends of the torsion spring 72 are fixedly connected to the U-shaped block 71 and the box 42, respectively. Specifically, during the rice detection process in the third tank 421, due to the torsion spring 72, as... Figure 5 As shown, the box 42 and the U-shaped block 71 are in a state parallel to the horizontal line. When the first block 62 and the fifth block 63 come into contact, the box 42 will rotate downwards due to the pressure from above, and the rice in the third groove 421 can be poured out. After the first block 62 and the fifth block 63 separate, the box 42 will rotate back to its original position due to the action of the torsion spring 72. When the box 42 is reset, the fifth block 63 is blocked by the second first block 62, so the box 42 will only reset to its original position so that the third trough 421 can suck in rice again.

[0026] Furthermore, in order to enable the collecting mechanism 2 to collect the rice discharged from the detection component 4, as a preferred embodiment of the present invention, the collecting mechanism 2 includes a box 21, an anti-detachment component 22, and a U-shaped handle 23. The bottom surface of the box 21 is slidably connected to the upper surface of the bottom plate 11. The box 21 is located below the second rod 33 and the box 42. One side of the box 21 abuts against the side wall of the third plate 14, and the other side of the box 21 is fixedly connected to the end of the U-shaped handle 23. The U-shaped handle 23 is connected to the anti-detachment component 22. More specifically, the anti-detachment component 22 includes a fourth block 221 and a third rod 222. A limiting hole 111 is provided on the upper surface of the base plate 11. The fourth block 221 is sleeved and slidably connected to the surface of the U-shaped handle 23. One end of the fourth block 221 is fixedly connected to one end of the third rod 222, and the other end of the third rod 222 is slidably connected to the limiting hole 111. Specifically, when in use, the box 21 is placed on the upper surface of the base plate 11 and is located below the second rod 33 and the box 42, so that the rice falling out of the third trough 421 can fall into the box 21 for collection. In addition, due to the vibration motor 52, the entire device may vibrate to a certain extent. In order to prevent the box 21 from shifting or falling during use due to vibration, the third rod 222 can be inserted into the limiting hole 111 of the base plate 11. The other side of the box 21 is against the third plate 14, so the position of the box 21 can be restricted. When the test is completed or the box 21 is full of rice, simply loosen the anti-detachment component 22 and remove the box 21 from the bottom plate 11 using the U-shaped handle 23. Then, process the rice inside the box 21.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for detecting the grain size of medium-GI rice, characterized in that, include: The feeding component (5) is capable of sequentially arranging the rice to be tested; The detection component (4) is capable of detecting the grain size of the rice to be tested arranged in sequence by the feeding components (5); The power mechanism (3) can transfer the rice to be tested arranged in sequence by the feeding components (5) to the testing components (4) for testing; The flipping component (6) can discharge the rice that was previously tested during the process of the power mechanism (3) transferring the rice to be tested arranged in sequence by the feeding component (5) to the testing component (4) for testing; The reset component (7) is able to drive the flip component (6) to reset after the flip component (6) discharges the rice detected last time.

2. The detection device for detecting medium GI rice grain size according to claim 1, characterized in that, It also includes a collection mechanism (2) capable of collecting rice discharged from inside the detection component (4); Support component (1) is capable of supporting feeding component (5), detection component (4), power mechanism (3), flipping component (6), reset component (7) and collection mechanism (2).

3. The detection device for detecting medium GI rice grain size according to claim 2, characterized in that, The support assembly (1) includes a base plate (11), two first plates (12), at least one second plate (13), and at least one third plate (14). The lower ends of the two first plates (12), the second plates (13), and the third plate (14) are all fixedly connected to the upper surface of the base plate (11). The two first plates (12) are located on both sides of the middle part of the base plate (11). The upper ends of the two first plates (12) are connected to the feeding assembly (5). The upper end of the second plate (13) is connected to the reset assembly (7). The side wall of the third plate (14) is connected to the collecting mechanism (2).

4. The detection device for detecting the grain size of medium-GI rice according to claim 3, characterized in that, The feeding assembly (5) includes a feeding box (51) and a vibration motor (52). The upper sides of the feeding box (51) are fixedly connected to the upper ends of two first plates (12) respectively. One side of the outer wall of the feeding box (51) is fixedly connected to the base of the vibration motor (52). Several equidistant second troughs (511) are formed inside the lower end of the feeding box (51). The width of the second trough (511) is not less than the width of the rice to be tested.

5. The detection device for detecting medium GI rice grain size according to claim 4, characterized in that, The detection component (4) includes a box (42), several tubes (41), several detection elements (43), and several transparent glass (44). One side of the box (42) is connected to the reset component (7). The outer walls of the transparent glass (44) are all fixedly connected to the inner wall of the other side of the box (42). The transparent glass (44) divides the interior of the box (42) into a third groove (421) and a cavity (422). One end of each tube (41) is fixedly connected to the bottom surface of the box (42), and the other end of each tube (41) is connected to the input end of an external air extraction device. The bottom surface of the third groove (421) is provided with a through hole (423). The outer walls of several detection elements (43) are fixedly connected to the upper surface of the box (42). The detection end of the detection element (43) is located in the cavity (422) and the detection end of the detection element (43) faces the third groove (421). The tube (41), the through hole (423) and the third groove (421) are connected internally. The number of the third groove (421) is the same as the number of the second groove (511), and the third groove (421) is aligned with the second groove (511).

6. The detection device for detecting medium GI rice grain size according to claim 5, characterized in that, The power mechanism (3) includes a first rod (31), a transmission motor (32), and a second rod (33). The outer wall of the transmission motor (32) is fixedly connected to the side wall of the first first plate (12). The output shaft of the transmission motor (32) is fixedly connected to one end of the second rod (33). The other end of the second rod (33) is fixedly connected to one end of the first rod (31). The other end of the first rod (31) is rotatably connected to the second first plate (12) through a first bearing. The surface of the second rod (33) is provided with a plurality of equidistant first grooves (331). The plurality of first grooves (331) on the axial direction of the second rod (33) form a group. The number of first grooves (331) in a group is the same as the number of second grooves (511), and the positions of a group of first grooves (331) and second grooves (511) are aligned.

7. The detection device for detecting the grain size of medium-GI rice according to claim 6, characterized in that, The flipping assembly (6) includes a ring (61), a fifth block (63) and several first blocks (62). One side of the ring (61) is fixedly connected to the end of the second rod (33). The side wall of the fifth block (63) is fixedly connected to the end of the box (42). One end of several first blocks (62) is fixedly connected at equal intervals to the outer wall of the ring (61). The other end of the first blocks (62) abuts against the fifth block (63).

8. The detection device for detecting the grain size of medium-GI rice according to claim 7, characterized in that, The reset assembly (7) includes a U-shaped block (71), a torsion spring (72), a fourth rod (73), and at least one second block (74). The outer wall of the U-shaped block (71) is fixedly connected to one end of the second plate (13) away from the bottom plate (11). The other end of the U-shaped block (71) is sleeved and fixedly connected to the outer wall of the fourth rod (73). The end of the fourth rod (73) is rotatably connected to one end of the second block (74) through a second bearing. The other end of the second block (74) is fixedly connected to the outer wall of the box (42) away from the third groove (421). The torsion spring (72) is sleeved on the outer wall of the fourth rod (73). The two ends of the torsion spring (72) are fixedly connected to the U-shaped block (71) and the box (42) respectively.

9. The detection device for detecting the grain size of medium-GI rice according to claim 8, characterized in that, The collecting mechanism (2) includes a box (21), an anti-detachment component (22), and a U-shaped handle (23). The bottom surface of the box (21) is slidably connected to the upper surface of the base plate (11). The box (21) is located below the second rod (33) and the box (42). One side of the box (21) abuts against the side wall of the third plate (14). The other side of the box (21) is fixedly connected to the end of the U-shaped handle (23). The U-shaped handle (23) is connected to the anti-detachment component (22).

10. A detection device for detecting the grain size of medium-GI rice according to claim 9, characterized in that, The anti-detachment component (22) includes a fourth block (221) and a third rod (222). A limiting hole (111) is provided on the upper surface of the base plate (11). The fourth block (221) is sleeved and slidably connected to the surface of the U-shaped handle (23). One end of the fourth block (221) is fixedly connected to one end of the third rod (222), and the other end of the third rod (222) is slidably connected to the limiting hole (111).

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