High-quality rice fine sorting device

Abstract

The invention relates to the technical field of rice fine selection devices, and provides a high-quality rice fine selection device which comprises a feeding mechanism and a driving mechanism, in the process that the driving mechanism drives the feeding mechanism, a plurality of rice scraping plates on the feeding mechanism synchronously revolve, rice at the bottom of a fine selection frame can be contained, and the rice at the bottom of the fine selection frame can be separated; along with continuous revolution of the rice scraping disc, the rice contained in the rice scraping disc can be intermittently and quantitatively thrown to the screen, and large-size impurities in the rice are screened out through the screen and conveyed to the outer side of the fine selection frame. Through the arrangement of the fine selection box and the collecting assembly, in order to improve the rice fine selection degree, a drawing plate only needs to be drawn out from the bottom of a drawing box, a lap joint groove communicates with a lap joint empty groove, then primarily-selected rice can fall into the bottom of a fine selection frame again, intermittent equivalent feeding and screening work can be continuously conducted through a quantitative feeding mechanism, operation is easy and convenient, and efficiency is high. And re-feeding is not needed, multiple sets of color sorting mechanisms do not need to be additionally arranged, and the use value is very high.

Description

Technical Field

[0001] The invention relates to the technical field of rice selection devices, and in particular to a high-quality rice fine selection device. Background Art

[0002] Rice is a finished product made from rice grains after cleaning, husking, milling, and finishing. Rice contains nearly 64% of the nutrients in rice and more than 90% of the nutrients needed by the human body. It is also the main food for people in most parts of China. When rice is produced, it is necessary to remove the moldy and spoiled rice. During the rice production process, some large particles of impurities will be mixed in it.

[0003] In the intelligent and fine sorting and processing of agricultural products after harvest, traditional rice is sorted by intelligent color sorting devices. Color sorters mainly use photoelectric detection and image processing technology to sort and purify materials according to their color or shape. When color sorting rice, a large amount of dust will fly throughout the color sorting area. The long-term presence of dust will cover the color sorting lens, resulting in a decrease in color sorting quality.

[0004] For example, after searching, the existing patent (Announcement No.: CN116475098A) discloses a color sorting device for rice quality sorting, which includes a frame, a hopper, a material guide mechanism, a material guide frame, and a good product slot. The dust removal component removes dust from the rice, and then the image recognition component and the jet component cooperate to complete the rice color sorting work, reducing the impact of dust on the image recognition component. However, in this patent document, the functionality of the color sorting device is insufficient, and the dust removal component needs to be driven by setting up a driving device, which has a high cost of use.

[0005] In addition, when removing impurities, the rice color sorting device is difficult to blow away large particles of impurities, resulting in poor impurity removal efficiency. For this reason, after searching, the existing patent (Announcement No.: CN111889399B) discloses a color sorting device for a rice production line, which includes a support frame, a power mechanism for providing power for screening rice, a color sorting frame, and a glass plate. The invention uses a rotating roller to rotate inside the upper end of the support frame to pour the rice into the lower side of the support frame one by one, thereby preventing the clogging of rice grains and improving the separation quality. The dust suction fan and the dust suction hood are used to adsorb the lower end of the support frame, so that the dust in the rice grains can be adsorbed, thereby ensuring the cleanliness and sanitation of the separation area. However, in the above scheme, the large particles of impurities under the vibration screening in the screening plate cannot be automatically removed, which easily causes the screening plate to be blocked, and the dust removal of the rice grains requires an additional dust suction fan for dust removal, and the equipment investment cost is high.

[0006] In addition, for some rice with a large amount and density of impurities, traditional single or multiple color sorters cannot completely screen it to a qualified or even high-quality level. In order to improve the degree of selection, either a color sorting mechanism is added, or the color-sorted rice is collected again and manually transported again, or a mechanical mechanism is set up to put the rice back into the feed port for color sorting. The former has a high investment cost and subsequent maintenance cost, and the latter is more troublesome and inconvenient to operate.

[0007] In view of this, the present invention proposes a device for finely sorting high-quality rice. Summary of the invention

[0008] The present invention provides a high-quality rice fine selection device, which solves the problem that the existing rice selection devices in the related art have relatively single functionality and traditional single or multiple color sorters cannot completely screen the rice to a qualified or even high-quality level.

[0009] The technical solution of the present invention is as follows: a high-quality rice fine sorting device, comprising: a sorting frame and a support frame symmetrically fixed to both sides of the sorting frame for supporting the sorting frame, the bottom of the sorting frame is in a hollow semi-circular disc shape for storing rice, a quantitative feeding mechanism is arranged on the inner side of the sorting frame, and a driving mechanism is fixedly installed on the outer wall of the sorting frame, and the quantitative feeding mechanism can be driven by the driving mechanism, so that the rice stored at the bottom of the sorting frame can be filled and thrown down in equal and intermittent amounts by the quantitative feeding mechanism; A selection box is installed inside the selection frame, and the selection box partially extends outside the selection frame. A screen is arranged inside the selection box for screening the rice thrown down by the quantitative feeding mechanism, and transferring the impurities in the rice to the outside of the selection frame. A guide plate is arranged inside the selection box located below the screen for guiding the rice screened by the screen for feeding. A color selection component is arranged at the bottom of the guide plate for color selection of the rice fed by the guide plate. A blow-off channel matched with the color selection component is installed on the selection box. A dust suction mechanism is provided at the front side of the selection frame for absorbing dust inside the selection frame, and a transmission mechanism is provided between the dust suction mechanism and the quantitative feeding mechanism. When the driving mechanism drives the quantitative feeding mechanism, the dust suction mechanism, the screen and the guide plate can be synchronously driven by the transmission mechanism; An overlapping slot is provided through the bottom of the selection box, and a collecting component is detachably provided inside the selection box, through which the color-selected rice can be contained or dropped back into the bottom of the selection frame.

[0010] Preferably, the quantitative feeding mechanism includes a rotating shaft rotatably connected to the rear side of the selection frame, a plurality of fixed rods are fixedly connected to the outer wall of the rotating shaft in a circular array, and a rice scraping plate is fixedly connected to one end of each of the fixed rods away from the rotating shaft, and the outer wall of the end of the rice scraping plate away from the rotating shaft is arranged to be an arc surface that cooperates with the inner wall of the bottom of the selection frame.

[0011] Preferably, the dust suction mechanism includes a dust guide cylinder fixedly connected to the outer wall of the selection frame, the dust guide cylinder is connected to the interior of the selection frame, a protective net is installed at the port of the dust guide cylinder close to the side of the selection frame, a suspension rod is fixedly connected to the inner wall of the dust guide cylinder, an axle rod is rotatably connected to the outer wall of the suspension rod, a fan is provided on the fixed sleeve of the outer wall of the axle rod located on the inner side of the dust guide cylinder, and the axle rod rotates and passes through the interior of the protective net.

[0012] Preferably, the transmission mechanism includes a large gear fixedly mounted on the outer wall of the rotating shaft, a small gear is meshingly connected to the upper side of the large gear, the small gear is rotatably connected to the inner wall of the selection frame, and the small gear is fixedly connected to one end of the shaft.

[0013] Preferably, the transmission mechanism also includes a first bevel gear fixedly sleeved on the outer wall of the shaft rod, a second bevel gear is meshingly connected to the lower side of the first bevel gear, a rotating rod is fixedly connected to the bottom end of the second bevel gear, a swing plate is fixedly connected to the bottom end of the rotating rod, a toggle rod is eccentrically connected to the bottom of the swing plate, two swing rods are rotatably sleeved on the outer wall of the toggle rod, and the two swing rods are respectively hinged to the screen and one end of the guide plate.

[0014] Preferably, a support plate is fixedly connected to the top end of one side of the selection box, the shaft rod rotates and passes through the inside of the support plate, the side wall of the support plate is fixedly connected to a limit ring, and the rotating rod rotates and passes through the inside of the limit ring.

[0015] Preferably, the color sorting component includes a right-angle mounting plate fixedly connected to the inner wall of the selection box, the outer wall of the right-angle mounting plate is provided with a plurality of CCD lenses and light sources, and the right-angle mounting plate is provided with a compressed air spray valve, the nozzle of the compressed air spray valve is directly facing a port of the blow-off channel.

[0016] Preferably, a first placing groove is opened on the front side of the selection box, and a second placing groove and a third placing groove are opened on the rear side of the selection box, the screen is obliquely arranged between the second placing groove and the first placing groove, and the guide plate is obliquely arranged between the third placing groove and the right-angle mounting plate, and the top of the right-angle mounting plate, the bottom of the second placing groove, the bottom of the third placing groove and the bottom of the first placing groove are all provided with spring sheets for supporting the screen or the guide plate.

[0017] Preferably, the collection assembly comprises a pull-out box slidably sleeved on the inner side of the selection box, a lap groove is formed through the bottom of the pull-out box, and a pull-out plate is slidably sleeved on the bottom of the pull-out box.

[0018] Preferably, a feeding port is provided at the top of the selection box, a cover plate is provided at the top of the feeding port located outside the selection frame, a pull-out cavity for sliding the pull-out box is provided on the side wall of the selection box, and an inclined plate is provided on the upper side of the pull-out cavity for guiding the color-selected rice into the inner side of the pull-out box for storage.

[0019] The working principle and beneficial effects of the present invention are: In the present invention, by providing a feeding mechanism and a driving mechanism, in the process of driving the feeding mechanism by the driving mechanism, a plurality of rice scraping discs on the feeding mechanism revolve synchronously, and when the rice scraping disc revolves to the lower side of the selection frame, it can fit with the inner wall of the selection frame and can scoop up the rice at the bottom of the selection frame, and as the rice scraping disc continues to revolve, the rice scooped up in the rice scraping disc will be intermittently and quantitatively thrown to the screen, and the impurities with larger volume in the rice will be screened out by the screen and transported to the outside of the selection frame, so as to avoid that the color sorting mechanism cannot blow away the impurities well and affect the rice quality, and to avoid that the impurities are accumulated on the screen and cause blockage; In the present invention, by providing a selection box and a collecting component, after the rice is screened by a screen and then color-sorted by a color-sorting component, it will be stored inside a pull-out box. In order to improve the selection degree of the rice, it is only necessary to pull out the pull-out plate from the bottom of the pull-out box so that the overlapping grooves are connected with the overlapping empty grooves, and the rice that has been preliminarily selected (screened once by a screen and color-sorted once by a color-sorting component) can be dropped back into the bottom of the selection frame, and the quantitative feeding mechanism can continue to perform intermittent equal-amount feeding and screening work. The operation is simple and convenient, and there is no need to re-feed, which saves costs, and there is no need to additionally equip multiple sets of color-sorting mechanisms, and the rice has a high use value. In the present invention, a dust suction mechanism is arranged at the front side of the selection frame, and a transmission mechanism is arranged between the dust suction mechanism and the quantitative feeding mechanism. When the driving mechanism drives the quantitative feeding mechanism to enable it to throw the rice, the dust suction mechanism, the screen and the guide plate can be synchronously driven by the transmission mechanism, so that the dust suction mechanism can automatically suck the dust raised by the collision of the rice inside the selection frame, greatly reducing the adhesion of dust on the surface of the rice and the color selection lens, improving the color selection accuracy, enabling the screen to accelerate the screening speed of the rice through continuous vibration, quickly remove impurities in the rice, and enabling the guide plate to ensure the uninterrupted and stable feeding of the rice material through continuous vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1This is a schematic diagram of the three-dimensional structure of a high-quality rice fine separation device proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a high-quality rice fine sorting device proposed by the present invention; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a schematic diagram of the assembly structure of the selection box proposed by the present invention; Figure 5 This is a schematic diagram of the inner assembly structure of the selection frame proposed by the present invention; Figure 6 for Figure 4 The enlarged structural diagram at B in the middle; In the figure: 1. Featured box; 2. Color sorting components; 201. Right-angle mounting plate; 202. CCD lens; 203. Light source; 204. Compressed air spray valve; 3. Collection assembly; 301. Pull-out box; 302. Pull-out plate; 303. Overlap groove; 4. Cover plate; 5. Dust collection mechanism; 501. Dust guide cylinder; 502. Suspension rod; 503. Fan; 504. Shaft rod; 505. Protective net; 6. Selection box; 601. Overlapping empty slot; 602. Pull-out cavity; 603. First placement slot; 604. Dropping port; 605. Second placement slot; 606. Third placement slot; 607. Inclined plate; 7. quantitative feeding mechanism; 701. rice scraping plate; 702. fixing rod; 703. rotating shaft; 8. Transmission mechanism; 801. Pinion; 802. Big gear; 803. First bevel gear; 804. Second bevel gear; 805. Rotating rod; 806. Swing rod; 807. Swing plate; 808. Toggle rod; 9. Driving mechanism; 10. Support frame; 11. Screen; 12. Blow away the channel; 13. Guide plate; 14. Spring sheet; 15. Limiting ring; 16. Support plate. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] See also Figure 1 , Figure 2 , Figure 4 as well as Figure 5 A high-quality rice fine selection device comprises: a selection frame 1 and a support frame 10 symmetrically fixed to both sides of the selection frame 1 for supporting the selection frame 1. The bottom of the selection frame 1 is in a hollow semi-circular disc shape for storing rice. A quantitative feeding mechanism 7 is arranged on the inner side of the selection frame 1. A driving mechanism 9 is fixedly installed on the outer wall of the selection frame 1. The quantitative feeding mechanism 7 can be driven by the driving mechanism 9, so that the rice stored at the bottom of the selection frame 1 can be filled and thrown down in equal and intermittent amounts by the quantitative feeding mechanism 7.

[0024] Furthermore, a selection box 6 is installed inside the selection frame 1, and the selection box 6 partially extends out of the outside of the selection frame 1. A screen 11 is arranged inside the selection box 6 for screening the rice thrown down by the quantitative feeding mechanism 7, and transferring the impurities in the rice to the outside of the selection frame 1. A guide plate 13 is arranged inside the selection box 6 located at the lower side of the screen 11, and is used for guiding the rice screened by the screen 11 to be discharged. A color sorting component 2 is arranged at the bottom of the guide plate 13, and is used for color sorting the rice discharged through the guide plate 13. A blow-off channel 12 matched with the color sorting component 2 is installed on the selection box 6.

[0025] Specifically, the quantitative feeding mechanism 7 includes a rotating shaft 703 rotatably connected to the rear side of the selection frame 1, and a plurality of fixed rods 702 are fixedly connected to the outer wall of the rotating shaft 703 in a circular array. Each fixed rod 702 is fixedly connected to a rice scraping plate 701 at one end away from the rotating shaft 703, and the outer wall of the rice scraping plate 701 at one end away from the rotating shaft 703 is arranged to be an arc surface that cooperates with the inner wall of the bottom of the selection frame 1.

[0026] Specifically, the color sorting component 2 includes a right-angle mounting plate 201 fixedly connected to the inner wall of the selection box 6, a plurality of CCD lenses 202 and a light source 203 are arranged on the outer wall of the right-angle mounting plate 201, and a compressed air spray valve 204 is arranged on the right-angle mounting plate 201, and the nozzle of the compressed air spray valve 204 is directly opposite to a port of the blow-off channel 12.

[0027] In this embodiment, when the rice is selected, the driving mechanism 9 is started, and the driving mechanism 9 drives the rotating shaft 703 to rotate through its output shaft, and the rotating shaft 703 drives a plurality of fixed rods 702 to rotate synchronously, and the fixed rods 702 drive the scraping rice plate 701 to revolve, and the scraping rice plate 701 can fit with the inner wall of the selection frame 1 when revolving to the lower side of the selection frame 1, and can scoop up the rice at the bottom of the selection frame 1, and as the scraping rice plate 701 continues to revolve, the rice scooped up in the scraping rice plate 701 will gradually be thrown to the screen 11. The rice falling on the screen 11 can be quickly sieved and dropped to the upper side of the guide plate 13, and then the rice is divided and guided by the guide plate 13, and the larger impurities in the rice remaining at the upper end of the screen 11 will be transferred to the outer side of the selection frame 1 through the screen 11 and the first placement slot 603.

[0028] In this embodiment, the material guided and transported from the guide plate 13 is observed by the CCD lens 202 under the action of the light source 203, and the system generates output signals. These signals drive the compressed air spray valve 204 to blow out the heterochromatic particles into the blow-off channel 12, and transport them to the outside of the selection frame 1 through the blow-off channel 12, while the good rice continues to fall to the inside of the pull-out box 301. In addition, the conventional color sorting mode of the color sorter is a prior art and will not be described in detail here. Example

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 A high-quality rice fine selection device includes all the contents of Example 1. In addition, a dust suction mechanism 5 is arranged on the front side of the selection frame 1 to absorb dust inside the selection frame 1. A transmission mechanism 8 is arranged between the dust suction mechanism 5 and the quantitative feeding mechanism 7. When the driving mechanism 9 drives the quantitative feeding mechanism 7, the dust suction mechanism 5, the screen 11 and the guide plate 13 can be synchronously driven by the transmission mechanism 8.

[0030] Furthermore, an overlapping slot 601 is provided through the bottom of the selection box 6, and a collecting component 3 is detachably provided inside the selection box 6, through which the color-selected rice can be contained or dropped back into the bottom of the selection frame 1.

[0031] Specifically, the dust suction mechanism 5 includes a dust guide tube 501 fixedly connected to the outer wall of the selection frame 1, the dust guide tube 501 is connected to the inside of the selection frame 1, a protective net 505 is installed at the port of the dust guide tube 501 close to the side of the selection frame 1, a suspension rod 502 is fixedly connected to the inner wall of the dust guide tube 501, and an axle rod 504 is rotatably connected to the outer wall of the suspension rod 502. A fan 503 is fixedly mounted on the outer wall of the axle rod 504 located on the inner side of the dust guide tube 501, and the axle rod 504 rotates and passes through the inside of the protective net 505.

[0032] Specifically, the transmission mechanism 8 includes a large gear 802 fixedly mounted on the outer wall of the rotating shaft 703 , a small gear 801 is meshedly connected to the upper side of the large gear 802 , the small gear 801 is rotatably connected to the inner wall of the selection frame 1 , and the small gear 801 is fixedly connected to one end of the shaft 504 .

[0033] Furthermore, the transmission mechanism 8 also includes a first bevel gear 803 fixedly mounted on the outer wall of the shaft rod 504, the lower side of the first bevel gear 803 is meshingly connected to the second bevel gear 804, the bottom end of the second bevel gear 804 is fixedly connected to a rotating rod 805, the bottom end of the rotating rod 805 is fixedly connected to a swing plate 807, the bottom of the swing plate 807 is eccentrically connected to a toggle rod 808, the outer wall of the toggle rod 808 is rotatably mounted with two swing rods 806, and the two swing rods 806 are hinged to one end of the screen 11 and the guide plate 13, respectively.

[0034] In addition, a support plate 16 is fixedly connected to the top of one side of the selection box 6, the shaft 504 rotates and penetrates inside the support plate 16, the side wall of the support plate 16 is fixedly connected to the limit ring 15, and the rotating rod 805 rotates and penetrates inside the limit ring 15. A first placement groove 603 is provided at the front side of the selection box 6, and a second placement groove 605 and a third placement groove 606 are provided at the rear side of the selection box 6. The screen 11 is tiltedly arranged between the second placement groove 605 and the first placement groove 603, and the guide plate 13 is tiltedly arranged between the third placement groove 606 and the right-angle mounting plate 201. The top of the right-angle mounting plate 201, the bottom of the second placement groove 605, the bottom of the third placement groove 606 and the bottom of the first placement groove 603 are all provided with spring sheets 14 for supporting the screen 11 or the guide plate 13.

[0035] Specifically, the collecting assembly 3 includes a pull-out box 301 slidably mounted inside the selection box 6, a lap groove 303 is provided through the bottom of the pull-out box 301, and a pull-out plate 302 is slidably mounted on the bottom of the pull-out box 301. A drop-out opening 604 is provided at the top of the selection box 6, and a cover plate 4 is provided at the top of the drop-out opening 604 located outside the selection frame 1. A pull-out cavity 602 for the pull-out box 301 to slide is provided on the side wall of the selection box 6, and an inclined plate 607 is provided on the upper side of the pull-out cavity 602 for guiding the color-selected rice to enter the inner side of the pull-out box 301 for storage.

[0036] In this embodiment, when working, the collecting component 3 is pulled out from the selection frame 1. At this time, the rice to be selected can be transported to the bottom space of the selection frame 1 through the pull-out cavity 602. Of course, the rice can also be loaded into the inner side of the pull-out box 301. After the pull-out box 301 is pushed into the selection box 6, the pull-out plate 302 is pulled out. At this time, the overlapping groove 303 is connected with the overlapping empty groove 601, so that the rice falls to the bottom of the selection frame 1.

[0037] In this embodiment, during the rotation of the rotating shaft 703, it can drive the large gear 802 to rotate, the large gear 802 can drive the small gear 801 to rotate quickly, the small gear 801 can drive the shaft 504 to rotate, and the shaft 504 can drive the fan 503 to rotate, so that the dust generated in the internal space of the selection frame 1 can be sucked. In actual work, a dust collecting bag can be installed on the end of the dust guide tube 501 away from the selection frame 1 to collect the absorbed dust.

[0038] In this embodiment, during the rotation of the shaft 504, the first bevel gear 803 can be driven to rotate, the first bevel gear 803 drives the second bevel gear 804 to rotate, the second bevel gear 804 drives the rotating rod 805 to rotate, the rotating rod 805 drives the swing plate 807 to rotate, the swing plate 807 drives the toggle rod 808 to revolve, the revolving toggle rod 808 continuously pushes and pulls the two swing rods 806, so that the two swing rods 806 push and pull the screen 11 and the guide plate 13 respectively, so that the rice falling on the screen 11 can be quickly sieved to the upper side of the guide plate 13, and then the rice is divided and guided by the guide plate 13 for discharge, and the larger impurities in the rice remaining at the upper end of the screen 11 will be transferred to the outside of the selection frame 1 through the screen 11 and the first placement slot 603.

[0039] In this embodiment, after the rice is color-sorted and stored in the pull-out box 301, in order to improve the selection degree of the rice, it is only necessary to pull out the pull-out plate 302 from the bottom of the pull-out box 301 so that the overlapping groove 303 is connected with the overlapping empty groove 601, and the preliminarily selected rice can fall back to the bottom of the selection frame 1, and the intermittent equal amount feeding and screening work can continue to be performed through the quantitative feeding mechanism 7.

[0040] Working principle and usage process: When working, the collecting component 3 is pulled out from the selection frame 1. At this time, the rice to be selected can be transported to the bottom space of the selection frame 1 through the pull-out cavity 602. Of course, the rice can also be loaded into the inner side of the pull-out box 301. After the pull-out box 301 is pushed into the selection box 6, the pull-out plate 302 is pulled out. At this time, the overlapping groove 303 is connected with the overlapping empty groove 601, so that the rice falls to the bottom of the selection frame 1, or a feed port is reopened on the outer wall of the selection frame 1 to add rice. I will not go into details here.

[0041] When the rice is selected, the driving mechanism 9 is started, and the driving mechanism 9 drives the rotating shaft 703 to rotate through its output shaft, and the rotating shaft 703 drives several fixed rods 702 to rotate synchronously, and the fixed rods 702 drive the rice scraping plate 701 to revolve. When the rice scraping plate 701 revolves to the lower side of the selection frame 1, it can fit with the inner wall of the selection frame 1 and can scoop up the rice at the bottom of the selection frame 1. As the rice scraping plate 701 continues to revolve, the rice scooped in the rice scraping plate 701 will gradually be thrown toward the screen 11 through the drop port 604.

[0042] At the same time, during the rotation of the rotating shaft 703, it can drive the large gear 802 to rotate, the large gear 802 can drive the small gear 801 to rotate quickly, the small gear 801 can drive the shaft 504 to rotate, and the shaft 504 can drive the fan 503 to rotate, so that the dust generated in the internal space of the selection frame 1 can be sucked. In actual work, a dust collecting bag can be installed on the end of the dust guide tube 501 away from the selection frame 1 to collect the absorbed dust.

[0043] During the rotation of the shaft 504, it can also drive the first bevel gear 803 to rotate, the first bevel gear 803 drives the second bevel gear 804 to rotate, the second bevel gear 804 drives the rotating rod 805 to rotate, the rotating rod 805 drives the swing plate 807 to rotate, the swing plate 807 drives the toggle rod 808 to revolve, the revolving toggle rod 808 continuously pushes and pulls the two swing rods 806, so that the two swing rods 806 push and pull the screen 11 and the guide plate 13 respectively, so that the rice falling on the screen 11 can be quickly sieved to the upper side of the guide plate 13, and then the rice is divided and guided by the guide plate 13 for unloading, and the larger impurities in the rice remaining on the upper end of the screen 11 will be transferred to the outside of the selection frame 1 through the screen 11 and the first placement slot 603.

[0044] The material guided and transported from the guide plate 13 is observed by the CCD lens 202 under the action of the light source 203, and the system generates output signals. These signals drive the compressed air spray valve 204 to blow out the heterochromatic particles into the blow-off channel 12, and transport them to the outside of the selection frame 1 through the blow-off channel 12, while the good rice continues to fall to the inside of the pull-out box 301. In addition, the conventional color sorting mode of the color sorter is a prior art and will not be described in detail here. When the rice at the bottom of the selection frame 1 is selected, that is, the rice is stored in the pull-out box 301 after color sorting, there are two optional solutions at this time. One is to improve the selection degree of rice, only the pull-out plate 302 needs to be pulled out from the bottom of the pull-out box 301, so that the overlap groove 303 is connected with the overlap empty groove 601, and the preliminarily selected rice can fall back to the bottom of the selection frame 1, and the quantitative feeding mechanism 7 can continue to perform intermittent equal amount feeding and screening. Alternatively, the drawer box 301 together with the drawer plate 302 can be directly drawn out from the selection box 6 to discharge the preliminarily selected rice.

[0045] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-quality rice fine selection device, comprising: A selection frame (1) and a support frame (10) symmetrically fixed to both sides of the selection frame (1) for supporting the selection frame (1), characterized in that the bottom of the selection frame (1) is in the shape of a hollow semi-circular disk for storing rice, a quantitative feeding mechanism (7) is arranged on the inner side of the selection frame (1), and a driving mechanism (9) is fixedly installed on the outer wall of the selection frame (1), and the quantitative feeding mechanism (7) can be driven by the driving mechanism (9), so that the rice stored at the bottom of the selection frame (1) can be filled and thrown down in equal and intermittent amounts by the quantitative feeding mechanism (7); A selection box (6) is installed inside the selection frame (1), and the selection box (6) partially extends outside the selection frame (1). A screen (11) is arranged inside the selection box (6) for screening the rice thrown down by the quantitative feeding mechanism (7) and transferring impurities in the rice to the outside of the selection frame (1). A guide plate (13) is arranged inside the selection box (6) below the screen (11) for guiding the rice screened by the screen (11) to be discharged. A color selection component (2) is arranged at the bottom of the guide plate (13) for color selection of the rice discharged by the guide plate (13). A blow-off channel (12) matched with the color selection component (2) is installed on the selection box (6); A dust collecting mechanism (5) is arranged on the front side of the selection frame (1) for collecting dust inside the selection frame (1); a transmission mechanism (8) is arranged between the dust collecting mechanism (5) and the quantitative feeding mechanism (7); when the driving mechanism (9) drives the quantitative feeding mechanism (7), the dust collecting mechanism (5), the screen (11) and the guide plate (13) can be synchronously driven by the transmission mechanism (8); The bottom of the selection box (6) is provided with an overlapping slot (601), and a collecting assembly (3) is detachably provided inside the selection box (6), through which the color-selected rice can be contained or dropped back into the bottom of the selection frame (1).

2. A high-quality rice fine sorting device according to claim 1, characterized in that: The quantitative feeding mechanism (7) comprises a rotating shaft (703) rotatably connected to the rear side of the selection frame (1); a plurality of fixing rods (702) are fixedly connected to the outer wall of the rotating shaft (703) in an annular array; one end of each fixing rod (702) away from the rotating shaft (703) is fixedly connected to a rice scraping plate (701); and the outer wall of one end of the rice scraping plate (701) away from the rotating shaft (703) is arranged to be an arc surface that matches the inner wall of the bottom of the selection frame (1).

3. A high-quality rice fine separation device according to claim 2, characterized in that: The dust collecting mechanism (5) comprises a dust guide tube (501) fixedly connected to the outer wall of the selection frame (1), the dust guide tube (501) being connected to the interior of the selection frame (1), a protective net (505) being installed at a port of the dust guide tube (501) close to one side of the selection frame (1), a suspension rod (502) being fixedly connected to the inner wall of the dust guide tube (501), an outer wall of the suspension rod (502) being rotatably connected to an axle rod (504), a fan (503) being fixedly mounted on the outer wall of the axle rod (504) located on the inner side of the dust guide tube (501), and the axle rod (504) rotatably passes through the interior of the protective net (505).

4. A high-quality rice fine separation device according to claim 3, characterized in that: The transmission mechanism (8) comprises a large gear (802) fixedly mounted on the outer wall of the rotating shaft (703), a small gear (801) meshingly connected to the upper side of the large gear (802), the small gear (801) rotatably connected to the inner wall of the selection frame (1), and the small gear (801) is fixedly connected to one end of the shaft (504).

5. A high-quality rice fine separation device according to claim 4, characterized in that: The transmission mechanism (8) further comprises a first bevel gear (803) fixedly sleeved on the outer wall of the shaft (504); the first bevel gear (803) is meshingly connected to a second bevel gear (804) on the lower side; a rotating rod (805) is fixedly connected to the bottom end of the second bevel gear (804); a swing plate (807) is fixedly connected to the bottom end of the rotating rod (805); a toggle rod (808) is eccentrically connected to the bottom of the swing plate (807); two swing rods (806) are rotatably sleeved on the outer wall of the toggle rod (808); the two swing rods (806) are hingedly connected to one end of the screen (11) and the guide plate (13), respectively.

6. A high-quality rice fine separation device according to claim 5, characterized in that: A support plate (16) is fixedly connected to the top end of one side of the selection box (6), the shaft rod (504) rotatably passes through the interior of the support plate (16), the side wall of the support plate (16) is fixedly connected to a limit ring (15), and the rotating rod (805) rotatably passes through the interior of the limit ring (15).

7. A high-quality rice fine separation device according to claim 6, characterized in that: The color sorting component (2) comprises a right-angle mounting plate (201) fixedly connected to the inner wall of the selection box (6), a plurality of CCD lenses (202) and a light source (203) are arranged on the outer wall of the right-angle mounting plate (201), and a compressed air spray valve (204) is arranged on the right-angle mounting plate (201), and the nozzle of the compressed air spray valve (204) is directly facing a port of the blow-off channel (12).

8. The high-quality rice fine separation device according to claim 7, characterized in that: A first placement groove (603) is provided on the front side of the selection box (6), and a second placement groove (605) and a third placement groove (606) are provided on the rear side of the selection box (6); the screen (11) is arranged obliquely between the second placement groove (605) and the first placement groove (603); the guide plate (13) is arranged obliquely between the third placement groove (606) and the right-angle mounting plate (201); and spring sheets (14) are provided at the top of the right-angle mounting plate (201), the bottom of the second placement groove (605), the bottom of the third placement groove (606) and the bottom of the first placement groove (603) for supporting the screen (11) or the guide plate (13).

9. The high-quality rice fine separation device according to claim 8, characterized in that: The collecting assembly (3) comprises a drawer box (301) slidably sleeved on the inner side of the selection box (6), a lap groove (303) is provided through the bottom of the drawer box (301), and a drawer plate (302) is slidably sleeved on the bottom of the drawer box (301).

10. The high-quality rice fine separation device according to claim 9, characterized in that: The selection box (6) has a top end provided with a feeding opening (604), a cover plate (4) being provided on the top end of the feeding opening (604) located outside the selection frame (1), a drawer cavity (602) for the drawer box (301) to slide is provided on a side wall of the selection box (6), and an inclined plate (607) is provided on the upper side of the drawer cavity (602) for guiding the color-selected rice to enter the inner side of the drawer box (301) for storage.

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