Rice processing and screening device

Abstract

The utility model relates to the technical field of rice processing, in particular to a rice processing and screening device which comprises a processing box, a first cavity, a second cavity, a third cavity and a fourth cavity are formed in the processing box, and a conveying mechanism used for conveying rice is arranged on the side wall of the processing box. Impurities in rice are blown into the first cavity through the blowing fan, separation of the rice and the impurities is achieved, the auger conveys the rice from the low position to the high position, the rice falls into the fourth cavity and then slides into the third cavity again, then the rice is conveyed by the auger again, and the rice is separated from the impurities. The conveying cylinder can be heated by the heating sleeve, so that the rice is heated, separation between the rice and rice hulls is facilitated, the screening effect is improved, the arranged auxiliary mechanism can scatter the rice, and the screening effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a rice processing screening device. Background Art

[0002] Rice is a finished product made from rice grains through various processes, including cleaning, husking, milling, and finishing. The rice germ and aleurone layer contain nearly 64% of rice's nutrients and over 90% of the nutrients required by the human body, making it a staple food for people in southern China. Rice contains approximately 75% carbohydrates, 7%-8% protein, 1.3%-1.8% fat, and is rich in B vitamins. The primary carbohydrate in rice is starch, while its protein content is primarily glutenin, followed by gelatin and globulin. The biological value and amino acid composition of rice protein are higher than those of cereals such as wheat, barley, millet, and corn, making it a higher-quality cereal protein.

[0003] Rice processing and screening is carried out using the principle of air separation, which utilizes the difference in suspension speed between materials and impurities and uses wind power to remove impurities. The purpose of air separation is to remove light impurities and dust. In the existing technology, when screening rice chaff, a batch of rice is processed at one time, and it is impossible to achieve multiple cycles of processing and screening of the rice. In addition, impurities such as rice husks mixed in the rice will adhere to the surface of the rice and cannot be well screened out when screened by wind. Moreover, impurities such as rice husks are located inside the rice and are blocked by the rice. Even if impurities such as rice husks are moved by wind, they cannot be effectively screened out due to the obstruction of the rice, resulting in certain disadvantages in actual use. Utility Model Content

[0004] The purpose of the utility model is to provide a rice processing and screening device, which solves the problem that in the prior art, when screening rice bran, a batch of rice is processed at one time, and the rice cannot be processed and screened for bran multiple times in a cycle. In addition, impurities such as rice husks mixed in the rice will adhere to the surface of the rice and cannot be well screened out when screened by wind. In addition, impurities such as rice husks are located inside the rice and are blocked by the rice. Even if the impurities such as rice husks are moved by the wind, they cannot be effectively screened out due to the obstruction of the rice, resulting in certain disadvantages in actual use.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rice processing and screening device comprises a processing box, wherein four first cavities, a second cavity, a third cavity and a fourth cavity are provided inside the processing box, a side wall of the processing box is provided with a conveying mechanism for conveying rice, and the top of the fourth cavity is provided with an auxiliary mechanism for breaking up the rice, a second filter is fixedly installed between the first cavity and the second cavity, the side wall of the first cavity and the top of the third cavity are both set as openings, the top of the first cavity is slidably inserted with a first filter, the bottom of the second cavity is provided with a blocking block, the bottom of the third cavity is connected to a discharge pipe, and the side wall of the third cavity is slidably inserted with a blocking plate, a blower is fixedly installed at a position on the side wall of the processing box corresponding to the first cavity, and the top of the processing box is provided with a driving mechanism for operating the conveying mechanism and the auxiliary mechanism.

[0007] Preferably, the conveying mechanism includes a conveying cylinder, a horizontal tube is fixedly installed on the side wall of the conveying cylinder near the top, and the horizontal tube is connected to the conveying cylinder, the horizontal tube is fixed and passes through the processing box, the interior of the conveying cylinder is rotatably connected to an auger, the top of the auger rotates and passes through the conveying cylinder, the bottom of the conveying cylinder is set to be an opening, the bottom of the auger is located inside the third cavity, and the surface of the conveying cylinder is fixedly provided with a heating sleeve.

[0008] Preferably, the auxiliary mechanism includes a second connecting shaft, the second connecting shaft rotates and passes through the top of the processing box, and a second connecting rod is fixedly installed on the surface of the second connecting shaft located inside the fourth cavity.

[0009] Preferably, the driving mechanism includes a motor, a fixing bracket is fixedly mounted on the surface of the motor, the motor is fixedly connected to the top of the processing box through the fixing bracket, a second turntable and a double turntable are fixedly mounted on the top of the auger and the surface of the second connecting shaft respectively, and the second turntable and the double turntable are connected by a belt drive.

[0010] Preferably, a first connecting shaft is rotated through the top of the first cavity, a first turntable is fixedly installed on the surface of the first connecting shaft, the first turntable and the double turntable are connected by a belt drive, and a first connecting rod is fixedly installed on the bottom end of the first connecting shaft.

[0011] Preferably, the fourth cavity is communicated with the third cavity, and the bottom wall of the fourth cavity is configured as an inclined surface so that rice can slide from the fourth cavity into the third cavity.

[0012] The utility model has at least the following beneficial effects:

[0013] By setting a blower fan to blow impurities in the rice into the first cavity, the rice and impurities are separated. The auger transports the rice from a low place to a high place. After the rice falls into the fourth cavity, it will slide into the third cavity again and then be transported by the auger again, thereby realizing multiple cycles of processing and screening of the same batch of rice, improving the screening effect, and the conveying cylinder can be heated by the heating sleeve to heat the rice, which in turn helps to separate the rice and the rice husk, improving the screening effect. The auxiliary mechanism can break up the rice to further improve the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the processing box of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the processing box of the utility model;

[0018] Figure 4 This is a schematic diagram of the auger structure of the utility model.

[0019] In the figure: 1. processing box; 2. first cavity; 3. second cavity; 4. third cavity; 5. first turntable; 6. first filter; 7. heating jacket; 8. sealing block; 9. first connecting shaft; 10. first connecting rod; 11. fourth cavity; 12. blower fan; 13. second turntable; 14. second connecting shaft; 15. second connecting rod; 16. discharge pipe; 17. sealing plate; 18. motor; 19. double turntable; 20. auger; 21. second filter; 22. conveying cylinder. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] Reference Figure 1-4, a rice processing and screening device comprises a processing box 1, the interior of the processing box 1 is provided with four first cavities 2, a second cavity 3, a third cavity 4 and a fourth cavity 11, the side wall of the processing box 1 is provided with a conveying mechanism for conveying rice, the top of the fourth cavity 11 is provided with an auxiliary mechanism for breaking up the rice, a second filter screen 21 is fixedly installed between the first cavity 2 and the second cavity 3, the side wall of the first cavity 2 and the top of the third cavity 4 are both set as openings, a first filter screen 6 is slidably inserted at the top of the first cavity 2, a blocking block 8 is provided at the bottom of the second cavity 3, the bottom of the third cavity 4 is connected to a discharge pipe 16, and a blocking plate 17 is slidably inserted at the side wall of the third cavity 4, a blower fan 12 is fixedly installed at the position corresponding to the first cavity 2 on the side wall of the processing box 1, and a driving mechanism for operating the conveying mechanism and the auxiliary mechanism is provided on the top of the processing box 1. First, pour the rice into the third cavity 4, and then start the driving mechanism. The driving mechanism drives the auxiliary mechanism and the conveying mechanism to operate, so that the rice in the third cavity 4 is conveyed upward by the conveying mechanism, and then falls from the top of the fourth cavity 11. At this time, the auxiliary mechanism will directly break up the rice under the action of the driving mechanism, so that the rice can fall from the top to the bottom of the fourth cavity 11 in a dispersed state, and the rice grains and the rice husks can be separated in the process of breaking up. In the process of falling, due to the light weight of the rice husks, the rice husks will be blown to the inside of the first cavity 2 by the wind force of the blower fan 12. The first filter screen 6 can prevent the blown rice husks from falling directly. The rice husks and millet grains that fall into the first cavity 2 will be directly located on the surface of the second filter screen 21. The second filter screen 21 is used to make the millet grains fall into the inside of the second cavity 3, thereby achieving a complete separation between the rice husks and the rice grains.

[0026] Furthermore, the conveying mechanism includes a conveying cylinder 22, a horizontal tube is fixedly installed on the side wall of the conveying cylinder 22 near the top, and the horizontal tube and the conveying cylinder 22 are connected, the horizontal tube is fixedly passed through the processing box 1, the interior of the conveying cylinder 22 is rotatably connected with an auger 20, the top of the auger 20 rotates and passes through the conveying cylinder 22, the bottom of the conveying cylinder 22 is set to be open, the bottom of the auger 20 is located inside the third cavity 4, and the surface of the conveying cylinder 22 is fixedly covered with a heating sleeve 7. When the conveying mechanism is in use, the driving mechanism drives the auger 20 to rotate, and the auger 20 pushes the rice inside the third cavity 4 upward along The conveying cylinder 22 moves, so as to use the horizontal tube to achieve the purpose of passing the rice into the fourth cavity 11, wherein the conveying cylinder 22 is provided with a heating sleeve 7, which can heat the rice, thereby reducing the situation where the rice husk and rice are wet and cause the rice husk to adhere to the rice, which helps to disperse the rice and the rice husk, and further helps to improve the screening effect. By setting the auger 20 to convey the rice from the bottom, the rice falling in the fourth cavity 11 will slide into the third cavity 4 again, and then be conveyed by the auger 20 again, so that the same batch of rice can be processed and screened multiple times in a cycle.

[0027] Furthermore, the auxiliary mechanism includes a second connecting shaft 14, which rotates through the top of the processing box 1. The second connecting shaft 14 is located inside the fourth cavity 11 and is fixedly installed with a second connecting rod 15. When the auxiliary mechanism is in use, the driving mechanism will drive the second connecting shaft 14 to rotate, and the second connecting shaft 14 will drive the second connecting rod 15 to rotate. The rotation of the second connecting rod 15 can break up the rice coming out of the horizontal tube, which is helpful for screening, and can also knock off the rice husks adhering to the rice, further improving the processing effect.

[0028] Furthermore, the driving mechanism includes a motor 18, a fixing frame is fixedly installed on the surface of the motor 18, the motor 18 is fixedly connected to the top of the processing box 1 through the fixing frame, the top of the auger 20 and the surface of the second connecting shaft 14 are respectively fixedly installed with a second turntable 13 and a double turntable 19, the second turntable 13 and the double turntable 19 are connected by a belt drive, when the driving mechanism is in use, the motor 18 is started, the motor 18 drives the second connecting shaft 14 and the double turntable 19 to rotate, the double turntable 19 drives the first turntable 5 to rotate through the belt, and the first turntable 5 can drive the auger 20 to rotate.

[0029] Furthermore, a first connecting shaft 9 is rotated through the top of the first cavity 2, and a first turntable 5 is fixedly installed on the surface of the first connecting shaft 9. The first turntable 5 and the double turntable 19 are connected by a belt drive. A first connecting rod 10 is fixedly installed on the bottom end of the first connecting shaft 9. By setting the first connecting shaft 9, the double turntable 19 can use the belt to drive the first turntable 5 to rotate, the first turntable 5 drives the first connecting shaft 9 to rotate, and the first connecting shaft 9 drives the first connecting rod 10 to rotate. The first connecting rod 10 will stir the rice husks and millet grains inside the first cavity 2, thereby facilitating the millet grains to pass through the second filter 21.

[0030] Furthermore, the fourth cavity 11 is connected to the third cavity 4 , and the bottom wall of the fourth cavity 11 is configured as an inclined surface so that rice can slide from the fourth cavity 11 into the third cavity 4 .

[0031] In summary, during use, the rice is first poured into the third cavity 4, and then the driving mechanism is started. The driving mechanism drives the auxiliary mechanism and the conveying mechanism to operate, so that the rice in the third cavity 4 is conveyed upward by the conveying mechanism, and then falls from the top of the fourth cavity 11. At this time, the auxiliary mechanism will directly break up the rice under the action of the driving mechanism, so that the rice can fall from the top to the bottom of the fourth cavity 11 in a dispersed state, and the rice grains and rice husks can be separated in the process of breaking up. In the process of falling, due to the light weight of the rice husk, the rice husk will be caused to float to the inside of the first cavity 2 by the wind force of the blower fan 12, and the first filter The net 6 can prevent the rice husks blown over from falling out directly. The rice husks and millet grains that fall into the first cavity 2 will be directly located on the surface of the second filter screen 21. The second filter screen 21 is used to make the millet grains fall into the inside of the second cavity 3, thereby achieving a complete separation between the rice husks and the rice grains. When the conveying mechanism is in use, the driving mechanism drives the auger 20 to rotate, and the auger 20 moves the rice inside the third cavity 4 upward along the conveying cylinder 22, thereby using the horizontal tube to achieve the purpose of passing the rice into the fourth cavity 11, wherein the conveying cylinder 22 is provided with a heating sleeve 7, which can heat the rice, thereby reducing the rice husks and rice grains. The situation that the rice husk adheres to the rice due to moisture is helpful for the dispersion between the rice and the rice husk, thereby helping to improve the screening effect. By setting the auger 20 to transport the rice from the bottom, the rice falling into the fourth cavity 11 will slide into the third cavity 4 again, and then be transported by the auger 20 again, so that the same batch of rice can be processed and screened multiple times in a cycle. When the auxiliary mechanism is in use, the driving mechanism will drive the second connecting shaft 14 to rotate, and the second connecting shaft 14 will drive the second connecting rod 15 to rotate. The rotation of the second connecting rod 15 can break up the rice coming out of the horizontal tube, which is helpful for screening and can The rice husks adhered to the rice are knocked off to further improve the processing effect. When the driving mechanism is in use, the motor 18 is started, and the motor 18 drives the second connecting shaft 14 and the double turntable 19 to rotate. The double turntable 19 drives the first turntable 5 to rotate through a belt. The first turntable 5 can drive the auger 20 to rotate. By setting the first connecting shaft 9, the double turntable 19 can use the belt to drive the first turntable 5 to rotate, the first turntable 5 drives the first connecting shaft 9 to rotate, and the first connecting shaft 9 drives the first connecting rod 10 to rotate. The first connecting rod 10 will stir the rice husks and millet grains inside the first cavity 2, thereby facilitating the passage of the millet grains through the second filter 21.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice processing and screening device, characterized in that: The invention comprises a processing box (1), wherein the processing box (1) is provided with four first cavities (2), a second cavity (3), a third cavity (4) and a fourth cavity (11); a conveying mechanism for conveying rice is provided on the side wall of the processing box (1); an auxiliary mechanism for breaking up the rice is provided on the top of the fourth cavity (11); a second filter (21) is fixedly installed between the first cavity (2) and the second cavity (3); and a filter is provided on the side wall of the first cavity (2) and the top of the third cavity (4). The processing box (1) is an opening, a first filter (6) is slidably inserted into the top of the first cavity (2), a blocking block (8) is provided at the bottom of the second cavity (3), a discharge pipe (16) is connected to the bottom of the third cavity (4), a blocking plate (17) is slidably inserted into the side wall of the third cavity (4), a blower fan (12) is fixedly installed at a position corresponding to the side wall of the processing box (1) and the first cavity (2), and a driving mechanism for operating the conveying mechanism and the auxiliary mechanism is provided at the top of the processing box (1).

2. A rice processing and screening device according to claim 1, characterized in that: The conveying mechanism includes a conveying cylinder (22), a horizontal tube is fixedly installed on the side wall of the conveying cylinder (22) near the top, and the horizontal tube and the conveying cylinder (22) are connected, the horizontal tube is fixed and passes through the processing box (1), the interior of the conveying cylinder (22) is rotatably connected to an auger (20), the top of the auger (20) rotates and passes through the conveying cylinder (22), the bottom of the conveying cylinder (22) is set to be open, the bottom of the auger (20) is located inside the third cavity (4), and the surface of the conveying cylinder (22) is fixedly provided with a heating sleeve (7).

3. A rice processing and screening device according to claim 2, characterized in that: The auxiliary mechanism comprises a second connecting shaft (14), the second connecting shaft (14) rotates and passes through the top of the processing box (1), and a second connecting rod (15) is fixedly mounted on the surface of the second connecting shaft (14) located inside the fourth cavity (11).

4. A rice processing and screening device according to claim 3, characterized in that: The driving mechanism includes a motor (18), a fixing frame is fixedly mounted on the surface of the motor (18), the motor (18) is fixedly connected to the top of the processing box (1) through the fixing frame, and a second turntable (13) and a double turntable (19) are fixedly mounted on the top of the auger (20) and the surface of the second connecting shaft (14), respectively, and the second turntable (13) and the double turntable (19) are connected via a belt drive.

5. A rice processing and screening device according to claim 4, characterized in that: A first connecting shaft (9) is rotatably passed through the top of the first cavity (2), a first turntable (5) is fixedly mounted on the surface of the first connecting shaft (9), the first turntable (5) and the double turntable (19) are connected via a belt drive, and a first connecting rod (10) is fixedly mounted on the bottom end of the first connecting shaft (9).

6. A rice processing and screening device according to claim 1, characterized in that: The fourth cavity (11) is connected to the third cavity (4), and the bottom wall of the fourth cavity (11) is configured as an inclined surface so that rice can slide from the fourth cavity (11) into the third cavity (4).

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