Method for detecting fullness of rice grains and rice spreading detection device

Abstract

The application discloses a kind of rice grain fullness detection method and rice spreading detection device, belong to rice detection technical field, can gradually flatten rice group and each rice is flattened on conveying component, cooperate subsequent image taking component, can automatically image each rice and analyze the length-width ratio of rice, rice chalkiness and other grain fullness and appearance data of rice, and can quickly obtain the broken rice rate, appearance good rate, grain fullness, heterogeneity rate and other parameters of the batch rice measured, can obtain the quality parameters of rice at a time;Compared with traditional detection mode, the impact force between rice grains in the whole flattening process of the method is relatively gentle and slight, and no additional broken rice is generated, the original quality of rice can be preserved to the maximum extent, the detection result is real and reliable, no manpower is needed, convenient to operate, and the detection process layout is simple, the cost is low, and it has great popularization and application value.

Description

Technical Field

[0001] This invention relates to the field of rice testing technology, and in particular to a method for detecting the fullness of rice grains and a device for detecting the spread of rice. Background Technology

[0002] Grain plumpness is one of the core indicators for determining the grade of rice and an important basis for classifying rice grades. Internationally, there are clear quantitative requirements for grain plumpness of different grades of rice, and factors such as grain integrity, uniformity, appearance and variety must also be taken into account.

[0003] In production, rice quality grades or selection operations are generally performed by physical screening. However, the collision process of rice grains during physical screening can easily lead to broken rice. The selection of screening machine parameters directly affects the final evaluation results and the output of high-quality rice. Moreover, the screening results cannot directly provide data on rice grain integrity, uniformity, and appearance. In order to meet the market's increasingly high quality requirements for rice, a second appearance inspection is required after screening. The machinery occupies a large production space and requires manual assistance, resulting in high production costs that are difficult to reduce. Summary of the Invention

[0004] In view of this, this application provides a method for detecting the plumpness of rice grains, comprising the following steps set in sequence:

[0005] Step S1: Guide the rice onto the conveyor and form a first group of rice grains arranged in n linear columns on it;

[0006] Step S2: n columns of the first rice grain group synchronously pass under the first flat plate and are guided by it to form 2n columns of the second rice grain group arranged linearly;

[0007] Step S3: The second rice grain group in 2n columns passes synchronously under the second flat plate and is guided by it to form a third rice grain group in 4n columns arranged linearly, and each column of the third rice grain group is composed of several single rice grains arranged in sequence.

[0008] Step S4: The imaging component extracts images of each grain of rice that enters its imaging range in real time;

[0009] Step S5: The industrial control computer receives the image information from the imaging component, analyzes the fullness of each rice grain in real time, and updates and displays the fullness data and quality grade data of the rice grains tested in this batch in real time.

[0010] Step S6: The pushing component pushes the third rice grain group into the storage component.

[0011] On the other hand, this application discloses a rice spreading detection device, which uses the above-mentioned rice grain fullness detection method to detect the fullness of rice grains, including a frame on which:

[0012] The turntable is a transparent, light-transmitting turntable horizontally mounted on the frame. It is connected to the first drive device and can rotate under its drive.

[0013] The feeding assembly includes a feeding hopper located above the turntable, on one side of its axis and extending radially thereto, the feeding hopper being able to guide the rice inside it onto the turntable and form one or more first rice grain groups;

[0014] The first spreading assembly includes a first spreading plate disposed on one side of the feeding hopper, which is mounted above the edge of the turntable and extends radially toward its axis. The lower end of the first spreading plate extends above each first rice grain group and is provided with a first distributing comb extending in the same direction therewith. Each first distributing comb can divide a first rice grain group into two second rice grain groups.

[0015] The second paving assembly includes a second paving plate disposed on one side of the first paving plate, which is mounted above the edge of the turntable and extends radially toward its axis. The lower end of the second paving plate extends above each of the first rice grain groups and is provided with a second distributing comb extending in the same direction therewith. Each of the second distributing combs can separate one of the second rice grain groups into two of the third rice grain groups.

[0016] The detection component includes an image-capturing unit mounted on one side of the second flat plate and two light sources. The two light sources are respectively located above and below the turntable. The image-capturing unit is mounted above the turntable and directly above several of the third rice grain groups. It is used to extract images of each rice grain entering its image-capturing range in real time and transmit them to the industrial control computer in real time. The industrial control computer can analyze the fullness of each rice grain in the image in real time and update and display the fullness data and quality grade data of the rice grains detected in this batch in real time.

[0017] The feeding assembly includes a pushing component located next to the detection component and horizontally mounted above the turntable and slidably connected thereto. The pushing component can intercept the third rice grain group and guide the rice grains into a receiving component located next to the turntable.

[0018] In some embodiments, the first and second flat plates are each slidably mounted in a longitudinally extending adjustment track on the frame, and an external force can push the first and second flat plates to slide longitudinally on the frame to adjust their distance from the turntable.

[0019] In some embodiments, the first distributing comb includes a first guide plate and a first distributing plate respectively mounted on two opposite sidewalls of the first flat plate. The first guide plate is detachably fixed to the first rice grain group via a locking member on a first slide rail, and the first distributing plate is detachably fixed to the second rice grain group via a locking member on a second slide rail. Both the first and second slide rails extend longitudinally. The first guide plate is provided with a plurality of first guide grooves that are adapted to the first rice grain group one by one. The first distributing plate is provided with a plurality of first distributing grooves that are adapted to the second rice grain group one by one. On the sidewall facing the first guide plate, an inverted V-shaped or triangular first diversion protrusion is formed on the outer side of each first distributing groove. The inclined surface of each first diversion protrusion is connected to the sidewall of the first distributing groove. The lower end of the first flat plate is provided with a first avoidance groove for avoiding the plurality of first diversion protrusions.

[0020] In some embodiments, the second distributing comb includes a second guide plate and a second distributing plate respectively mounted on opposite sidewalls of the second flat plate. The second guide plate is detachably fixed to a third slide rail facing the second rice grain group and via a locking member. The second distributing plate is detachably fixed to a fourth slide rail facing the third rice grain group and via a locking member. Both the third and fourth slide rails extend longitudinally. The second guide plate is provided with a plurality of second guide grooves that are adapted to each of the second rice grain groups. The second distributing plate is provided with a plurality of second distributing grooves that are adapted to each of the third rice grain groups. On the sidewall facing the second guide plate, an inverted V-shaped or triangular second diversion protrusion is formed on the outer side of each second distributing groove. The inclined surface of each first diversion protrusion is connected to the sidewall of the second distributing groove. The lower end of the second flat plate is provided with a second avoidance groove for avoiding the plurality of second diversion protrusions.

[0021] In some embodiments, the two light sources include a first light source and a second light source, the first light source being located beside the image-capturing component and both being located above the turntable, and the second light source being located below the turntable and directly below the image-capturing component.

[0022] In some embodiments, the image-capturing component is an area scan camera with an adjustable lens focal length.

[0023] In some embodiments, the pusher component (600) includes an L-shaped pusher plate with its longitudinal arm being tractively connected to and rotatable under the drive of the second drive device, and its transverse arm being disposed on the turntable and slidable thereon.

[0024] In some embodiments, the longitudinal arm is provided with a longitudinally extending slide bar, and the transverse arm is slidably mounted in the slide bar and detachably fixed to the longitudinal arm by a locking member.

[0025] In some embodiments, the longitudinal arm is a cylindrical structure, with a slide rod coaxially sleeved inside, which can rotate synchronously with it and slide relative to it in the Z direction. One end of the slide rod extends to the outside of the longitudinal arm and is detachably fixed to the transverse arm. An extension rod is embedded in the end of the longitudinal arm facing the turntable and is horizontally arranged and slidably connected to it.

[0026] Compared with existing technologies, the advantages of this invention are as follows: it can gradually flatten the rice grains and spread each grain evenly on the conveying component. With the subsequent imaging component, it can automatically image each grain of rice and analyze the grain's aspect ratio, chalkiness, and other grain plumpness and appearance data. It can also quickly obtain various parameters of the tested batch of rice, such as broken rice rate, good appearance rate, grain plumpness, and foreign variety rate, and can obtain various quality parameters of rice in one go. Compared with traditional detection methods, the impact force between rice grains in the entire flattening process of this application method is relatively mild and gentle, and no additional broken rice is generated. It can preserve the original quality of rice to the greatest extent, and the detection results are true and reliable. It does not require human assistance, is easy to operate, and has a simple detection process layout and low cost, making it of great value for promotion and application. Attached Figure Description

[0027] Figure 1 This is a flowchart of the method for detecting the plumpness of rice grains in this application;

[0028] Figure 2 This is a schematic diagram of the rice spreading detection device in this embodiment;

[0029] Figure 3 This is an exploded structural diagram of the first tile component in this embodiment;

[0030] Figure 4 This is a schematic diagram of the structure of the first material distribution plate in this embodiment;

[0031] Figure 5 This is an exploded structural diagram of the second tiling component in this embodiment;

[0032] Figure 6 This is a schematic diagram of the structure of the second material distribution plate in this embodiment;

[0033] Figure 7 This is a schematic diagram of the material pushing component in this embodiment.

[0034] Figure label:

[0035] 100. Feeding hopper;

[0036] 200. Turntable; 21. First drive unit;

[0037] 300. First flat assembly; 31. First flat board; 32. First sorting comb;

[0038] 400. Second flat assembly; 41. Second flat board; 42. Second sorting comb;

[0039] 500. Image capturing component; 51. First light source; 52. Second light source;

[0040] 600. Pushing component; 61. Longitudinal arm; 62. Lateral arm; 63. Extension rod;

[0041] 700. Receiving component;

[0042] 1. First rice grain group; 2. Second rice grain group; 3. Third rice grain group; 4. First guide plate; 5. First distribution plate; 6. First slide rail; 7. Second slide rail; 8. Second guide plate; 9. Second distribution plate; 10. Third slide rail; 11. Fourth slide rail; 12. Slide rod; 14. First diversion protrusion; 15. First clearance groove; 16. Second diversion protrusion; 17. Second clearance groove;

[0043] 01. First guide channel; 02. First distribution channel; 03. Second guide channel; 04. Second distribution channel. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It should be noted that when a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] refer to Figure 1 The method for detecting the plumpness of rice grains includes the following steps set in sequence:

[0047] Step S1: Guide the rice onto the conveyor and form the first rice grain group 1 with n columns arranged linearly on it;

[0048] Step S2: n columns of the first rice grain group 1 pass synchronously under the first flat plate 31 and are guided by it to form 2n columns of the second rice grain group 2 arranged linearly;

[0049] Step S3: The second rice grain group 2 in 2n columns passes synchronously under the second flat plate 41 and is guided by it to form a third rice grain group 3 in 4n columns arranged linearly, and each column of the third rice grain group 3 is composed of several single rice grains arranged in sequence.

[0050] Step S4: The imaging component 500 extracts images of each grain of rice that enters its imaging range in real time;

[0051] Step S5: The industrial control computer receives the image information from the imaging component 500, analyzes the fullness of each rice grain in real time, and updates and displays the fullness data and quality grade data of the rice grains tested in this batch in real time.

[0052] Step S6: The pushing component 600 pushes the third rice grain group 3 into the storage component.

[0053] During operation, the first rice grain group 1 (n columns) is linearly arranged on the conveying component. After passing through the first flattening plate 31, it is guided and diverted to form the second rice grain group 2 (2n columns). Then, after passing through the second flattening plate 41, it is guided and diverted to form the third rice grain group 3 (4n columns). This process gradually flattens the rice grain groups and ensures that each grain is evenly distributed on the conveying component. Combined with the subsequent imaging component 500, each grain of rice can be automatically imaged and analyzed for its aspect ratio, chalkiness, and other particle fullness and appearance data. The method can quickly obtain various parameters of the tested batch of rice, such as broken rice rate, good appearance rate, grain fullness, and foreign variety rate, providing a single set of quality parameters. Compared to traditional detection methods, the impact force between rice grains in this method is relatively gentle and mild throughout the flattening process, preventing additional broken rice and preserving the original quality of the rice to the greatest extent. The detection results are accurate and reliable, requiring no manual assistance, and are easy to operate. Furthermore, the detection process layout is simple and cost-effective, making it highly valuable for widespread application.

[0054] In practice, to ensure that the test results have reliable reference value and take into account the testing efficiency, 30-100 grains of rice are usually sampled for testing. Alternatively, the accuracy of the test results can be further improved by increasing the number of rice grains tested or by taking the average value of multiple tests, as needed.

[0055] refer to Figure 2This application also discloses a rice spreading detection device, which uses the above-mentioned rice grain fullness detection method to detect the fullness of rice grains, including a frame (not shown), on which are provided:

[0056] Turntable 200 is a transparent, light-transmitting turntable horizontally mounted on the frame. It is connected to the first drive device 21 and can rotate under its drive.

[0057] The feeding assembly includes a feeding hopper 100 located above the turntable 200 and on one side of its axis and extending radially therein. The feeding hopper 100 can guide the rice inside it onto the turntable 200 and form one or more first rice grain groups 1.

[0058] The first flattening assembly includes a first flattening plate 31 located on one side of the feeding hopper 100. It is mounted above the edge of the turntable 200 and extends radially toward its axis. The lower end of the first flattening plate 31 extends above each first rice grain group 1 and is provided with a first distributing comb 32 extending in the same direction. Each first distributing comb 32 can divide a first rice grain group 1 into two second rice grain groups 2.

[0059] The second flattening assembly includes a second flattening plate 41 located on one side of the first flattening plate 31, which is mounted above the edge of the turntable 200 and extends radially toward its axis. The lower end of the second flattening plate 41 extends above each first rice grain group 2 and is provided with a second distributing comb 42 extending in the same direction therewith. Each second distributing comb 42 can separate a second rice grain group 2 into two third rice grain groups 3.

[0060] The detection component includes an image acquisition unit 500 mounted on one side of the second flat plate 41 and two light sources. The two light sources are respectively located above and below the turntable 200. The image acquisition unit 500 is mounted above the turntable 200 and directly above several third rice grain groups 3. It is used to extract images of each rice grain entering its imaging range in real time and transmit them to the industrial control computer in real time. The industrial control computer can analyze the fullness of each rice grain in the image in real time and update and display the fullness data and quality grade data of the rice grains tested in this batch in real time.

[0061] The feeding assembly includes a pushing component 600 located next to the detection assembly and horizontally mounted above the turntable 200 and slidably connected thereto. The pushing component 600 can intercept the third rice grain group 3 and guide the rice grains into the storage component 700 located next to the turntable 200.

[0062] This embodiment uses a turntable 200 as a conveying component, which can effectively utilize space for detection operations. It also uses a sorting comb to accurately sort the rice grains, which can sort the rice grains step by step and place each grain of rice independently on the turntable 200, ensuring that the detection component can obtain image information of each grain of rice.

[0063] refer to Figure 3 and Figure 5 The first flat plate 31 and the second flat plate 41 are respectively slidably mounted in a longitudinally extending adjustment slide (not shown) on the frame. External force can push the first flat plate 31 and the second flat plate 41 to slide longitudinally on the frame to adjust their distance from the turntable 200.

[0064] refer to Figure 3 The first material distribution comb 32 includes a first guide plate 4 and a first material distribution plate 5 respectively installed on two opposite side walls of the first flat plate 31. The first guide plate 4 is detachably fixed to the first slide rail 6 facing the first rice grain group 1 and through a locking member. The first material distribution plate 5 is detachably fixed to the second slide rail 7 facing the second rice grain group 2 and through a locking member. Both the first slide rail 6 and the second slide rail 7 extend longitudinally. The first guide plate 4 is provided with a plurality of first guide grooves 01 that are adapted to the first rice grain group 1. The first material distribution plate 5 is provided with a plurality of first material distribution grooves 02 that are adapted to the second rice grain group 2.

[0065] refer to Figure 4 To guide the flow of rice grains and prevent their accumulation, an inverted V-shaped or triangular first diversion protrusion 14 is formed on the side wall of the first diversion plate 5 facing the first guide plate 4 on the outside of each first distribution trough 02. The inclined surface of each first diversion protrusion 14 is connected to the side wall of the first distribution trough 02. The lower end of the first flat plate 31 is provided with a first avoidance groove 15 for avoiding several first diversion protrusions 14.

[0066] refer to Figure 5 The second distribution comb 42 includes a second guide plate 8 and a second distribution plate 9 respectively installed on the opposite side walls of the second flat plate 41. The second guide plate 8 faces the second rice grain group 2 and is detachably fixed to the third slide rail 10 through a locking member. The second distribution plate 9 faces the third rice grain group 3 and is detachably fixed to the fourth slide rail 11 through a locking member. The third slide rail 10 and the fourth slide rail 11 both extend longitudinally. The second guide plate 8 is provided with a plurality of second guide grooves 03 that are adapted to the second rice grain group 2. The second distribution plate 9 is provided with a plurality of second distribution grooves 04 that are adapted to the third rice grain group 3.

[0067] refer to Figure 6 To guide the flow of rice grains and prevent their accumulation, an inverted V-shaped or triangular second diversion protrusion 16 is formed on the side wall of the second diversion plate 9 facing the second guide plate 8 on the outside of each second distribution trough 04. The inclined surface of each first diversion protrusion 16 is connected to the side wall of the second distribution trough 04. The lower end of the second flat plate 41 is provided with a second avoidance groove 17 for avoiding several second diversion protrusions 16.

[0068] refer to Figure 7The feeding component 600 includes an L-shaped feeding plate, whose longitudinal arm 61 is connected to a second driving device (not shown) and can rotate under its drive, and whose transverse arm 62 is disposed on the turntable 200 and can slide on it. In this embodiment, the longitudinal arm 61 is a cylindrical structure, and a slide rod 12 is coaxially sleeved inside it, which can rotate synchronously with it and slide relative to it in the Z direction. One end of the slide rod 12 extends to the outside of the longitudinal arm 61 and is detachably fixed to the transverse arm 62. An extension rod 63 is embedded in the end of the longitudinal arm 61 facing the turntable 200 and is horizontally disposed and slidably connected to it.

[0069] refer to Figure 2 The system includes two light sources, namely a first light source 51 and a second light source 52. The first light source 51 is located beside the image-capturing component 500, and both are positioned above the turntable 200. The second light source 52 is located below the turntable 200 and directly below the image-capturing component 500. In this embodiment, the image-capturing component 500 is an area array camera with an adjustable lens focal length.

[0070] During operation, the rotating turntable 200 moves the rice grain group forward synchronously. The first and second separating combs 32 guide, comb, and flatten the rice grain group in sequence. The area array camera, in conjunction with the first light source 51 below and the second light source 52 placed beside it, can clearly capture images of each rice grain under different ambient lighting conditions, ensuring detection accuracy. After detection, the unloading component can automatically push the rice grains on the turntable 200 into the storage component 700 for convenient storage.

[0071] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A method for detecting the plumpness of rice grains, characterized in that, This includes the following steps set in sequence: Step S1: Guide the rice onto the conveyor and form a first group of rice grains (1) with n columns arranged linearly on it. Step S2: n columns of the first rice grain group (1) pass synchronously under the first flat plate (31) and are guided by it to form 2n columns of the second rice grain group (2) arranged linearly. Step S3: The second rice grain group (2) of 2n columns passes under the second flat plate (41) synchronously and is guided by it to form a third rice grain group (3) of 4n columns arranged in a linear manner, and each column of the third rice grain group (3) is composed of several single rice grains arranged in sequence. Step S4: The imaging component (500) extracts images of each grain of rice that enters its imaging range in real time; Step S5: The industrial control computer receives the image information from the imaging component (500), analyzes the fullness of each rice grain in real time, and updates and displays the fullness data and quality grade data of the rice grains detected in this batch in real time. Step S6: The pushing component (600) pushes the third rice grain group (3) into the receiving component (700).

2. A rice spreading detection device, which uses the rice grain fullness detection method as described in claim 1 to detect the fullness of rice grains, characterized in that... Includes a frame, on which are provided: The turntable (200) is a transparent, light-transmitting turntable horizontally mounted on the frame. It is connected to the first drive device (21) and can rotate under its drive. The feeding assembly includes a feeding hopper (100) located above the turntable (200) and on one side of its axis and extending radially therein, the feeding hopper (100) being able to guide the rice inside it onto the turntable (200) and form one or more first rice grain groups (1). The first flattening assembly (300) includes a first flattening plate (31) disposed on one side of the feed hopper (100), which is mounted above the edge of the turntable (200) and extends radially toward its axis. The lower end of the first flattening plate (31) extends above each first rice grain group (1) and is provided with a first distributing comb (32) extending in the same direction therewith. Each first distributing comb (32) can separate a first rice grain group (1) into two second rice grain groups (2). The second flattening assembly (400) includes a second flattening plate (41) disposed on one side of the first flattening plate (31), which is mounted above the edge of the turntable (200) and extends radially toward its axis. The lower end of the second flattening plate (41) extends above each of the first rice grain groups (2) and is provided with a second distributing comb (42) extending in the same direction therewith. Each of the second distributing combs (42) can separate a second rice grain group (2) into two third rice grain groups (3). The detection component includes the imaging component (500) mounted on one side of the second flat plate (41) and two light sources. The two light sources are respectively located above and below the turntable (200). The imaging component (500) is mounted above the turntable (200) and directly above several third rice grain groups (3). It is used to extract the image of each rice grain entering its imaging range in real time and transmit it to the industrial control computer in real time. The industrial control computer can analyze the fullness of each rice grain in the image in real time and update and display the fullness data and quality grade data of the rice in this batch in real time. The feeding assembly includes a pushing component (600) located next to the detection assembly and horizontally mounted above the turntable (200) and slidably connected thereto. The pushing component (600) can intercept the third rice grain group (3) and guide the rice grains to the receiving component (700) located next to the turntable (200).

3. The rice spreading detection device according to claim 2, characterized in that, The first flat plate (31) and the second flat plate (41) are respectively slidably mounted in a longitudinally extending adjustment slide on the frame. External force can push the first flat plate (31) and the second flat plate (41) to slide longitudinally on the frame to adjust their distance from the turntable (200).

4. The rice spreading detection device according to claim 2, characterized in that, The first material distribution comb (32) includes a first guide plate (4) and a first material distribution plate (5) respectively installed on two opposite side walls of the first flat plate (31). The first guide plate (4) faces the first rice grain group (1) and is detachably fixed to the first slide rail (6) by a locking member. The first material distribution plate (5) faces the second rice grain group (2) and is detachably fixed to the second slide rail (7) by a locking member. The first slide rail (6) and the second slide rail (7) both extend longitudinally. The first guide plate (4) is provided with several parts that are adapted to the first rice grain group (1). The first guide channel (01) is provided, and the first distribution plate (5) is provided with a plurality of first distribution channels (02) that are adapted to the second rice grain group (2). On the side wall facing the first guide plate (4), an inverted V-shaped or triangular first diversion protrusion (14) is formed on the outside of each first distribution channel (02). The inclined surface of each first diversion protrusion (14) is connected to the side wall of the first distribution channel (02). The lower end of the first flat plate (31) is provided with a first avoidance groove (15) for avoiding the plurality of first diversion protrusions (14).

5. The rice spreading detection device according to claim 3, characterized in that, The second distribution comb (42) includes a second guide plate (8) and a second distribution plate (9) respectively installed on the opposite sidewalls of the second flat plate (41). The second guide plate (8) faces the second rice grain group (2) and is detachably fixed to the third slide rail (10) by a locking member. The second distribution plate (9) faces the third rice grain group (3) and is detachably fixed to the fourth slide rail (11) by a locking member. The third slide rail (10) and the fourth slide rail (11) both extend longitudinally. The second guide plate (8) is provided with several components corresponding to the second rice grain group (2). A matching second guide channel (03) is provided on the second distribution plate (9), which is provided with a plurality of second distribution channels (04) that are adapted to the third rice grain group (3), and an inverted V-shaped or triangular second diversion protrusion (16) is formed on the side wall facing the second guide plate (8) on the outside of each second distribution channel (04). The inclined surface of each first diversion protrusion (16) is connected to the side wall of the second distribution channel (04). The lower end of the second flat plate (41) is provided with a second avoidance groove (17) for avoiding the plurality of second diversion protrusions (16).

6. The rice spreading detection device according to claim 2, characterized in that, The two light sources include a first light source (51) and a second light source (52). The first light source (51) is located beside the image-capturing component (500) and both are located above the turntable (200). The second light source (52) is located below the turntable (200) and directly below the image-capturing component (500).

7. The rice spreading detection device according to claim 5, characterized in that, The image acquisition component (500) is an area array camera with adjustable lens focal length.

8. The rice spreading detection device according to claim 2, characterized in that, The pushing component (600) includes an L-shaped pushing plate, whose longitudinal arm (61) is connected to the second driving device and can rotate under its drive, and whose transverse arm (62) is provided on the turntable (200) and can slide on it.

9. The rice spreading detection device according to claim 7, characterized in that, The longitudinal arm (61) is a cylindrical structure, and a slide rod (12) is coaxially sleeved inside it, which can rotate synchronously with it and slide relative to it in the Z direction. One end of the slide rod (12) extends to the outside of the longitudinal arm (61) and is detachably fixed to the transverse arm (62). The end of the longitudinal arm (61) facing the turntable (200) is fitted with a horizontally arranged extension rod (63) that is slidably connected to it.

10. The rice spreading detection device according to claim 7, characterized in that, The transverse arm (62) is provided with a sixth slide rail extending in the same direction as it, and an extension rod (63) extending in the same direction as it is matched and installed in the sixth slide rail. The extension rod (63) is detachably fixed to the transverse arm (62) by a locking member.

Images