A rice screening and separation device

Abstract

This utility model discloses a rice screening and separation device, belonging to the field of rice processing technology, including a frame mechanism and a screening mechanism; the screening mechanism includes a rotating component and a quick-release component; the rotating component is used to rotate and replace clogged screens, and the quick-release component is used to quickly disassemble clogged screens. Bearings ensure stable rotation of the positioning cylinder, reducing frictional loss. After being driven by a motor, the second gear drives the first gear to rotate, which in turn drives the gear ring, causing the positioning cylinder to rotate inside the mounting cylinder, switching the clogged screen body to the cleaning station assembly shell side. A fan reverses to blow air onto the clogged screen body, providing airflow assistance for simple cleaning. When a set of screen bodies becomes clogged, it can be quickly rotated to switch to a spare screen body, achieving continuous production. The rotating screen switching design avoids downtime for cleaning, effectively improving the working efficiency of the screening and separation device.

Description

Technical Field

[0001] This utility model specifically relates to a rice screening and separation device, belonging to the field of rice processing technology. Background Technology

[0002] Rice processing is the process of transforming paddy rice into edible rice through a series of steps, mainly including cleaning, hulling, milling, and grading. Rice is one of the most important food crops for humankind, with a long history of cultivation and consumption. Half of the world's population consumes rice, mainly in Asia, southern Europe, tropical America, and parts of Africa. The total output of rice ranks third in the world's food crop output, lower than that of corn and wheat, but it can sustain the livelihoods of a large population. Therefore, the United Nations designated 2004 as the "International Year of Rice".

[0003] During the process of removing the husk and bran from rice, some whole rice grains will become broken rice or rice scraps due to the husking and milling operations. If broken rice is mixed in with rice, it will undoubtedly reduce the quality of rice. Therefore, it is necessary to use a screening and separation device to screen the rice and separate broken rice and rice scraps.

[0004] In existing technologies, rice screening and separation devices typically use sieves to screen and separate rice during operation. However, some rice gets stuck in the sieve openings, causing blockages and reducing the effective sieve area. This results in a lower rate of broken rice passing through, and some unqualified broken rice is not screened out, affecting the quality of the rice. The device needs to be shut down for cleaning, thus reducing its efficiency. Utility Model Content

[0005] The purpose of this invention is to address the problem in existing technologies where some rice gets stuck in the mesh during rice sieving, causing blockage and resulting in a reduction in the effective mesh area and a decrease in the rate of broken rice passing through. This invention provides a rice screening and separation device to increase the efficiency of the screen separation device.

[0006] A rice screening and separation device includes a frame mechanism and a screening mechanism;

[0007] The screening mechanism includes a rotating component and a quick-release component; the rotating component is used to rotate and replace a clogged screen, and the quick-release component is used to quickly disassemble the clogged screen.

[0008] The rotating assembly includes a support structure, which includes a positioning cylinder and bearings. Two sets of bearings are sleeved on the outside of the positioning cylinder, and multiple sets of support blocks are provided on the outside of both sets of bearings.

[0009] The rotating assembly includes a drive structure, which includes a motor and a first gear. A gear ring is provided on the outer side of the positioning cylinder relative to the bearing side. The gear ring meshes with the first gear. A second gear is provided at the output end of the motor. The second gear meshes with the first gear.

[0010] The quick-release assembly includes a first magnet block and a second magnet block. The first magnet block is located on the outside of the positioning cylinder, and the second magnet block is magnetically attracted to the first magnet block.

[0011] Preferably, the frame mechanism includes a mounting cylinder and a bracket, the bracket is disposed at the bottom end of the mounting cylinder, the mounting cylinder is inclined, one end of the multiple sets of support blocks is connected to the inner wall of the mounting cylinder, and the positioning cylinder is movably located inside the mounting cylinder.

[0012] Preferably, a control box is provided on the front of the bracket, a storage cylinder is provided on one side of the mounting cylinder, a conduit is provided through the bottom of the storage cylinder, and the other end of the conduit is located inside the positioning cylinder.

[0013] Preferably, the positioning cylinder has three sets of screen bodies embedded inside, the second magnet block is embedded between two adjacent sets of screen bodies, and four sets of support pillars are provided on the outside of the second magnet block, and the support pillars can move through the positioning cylinder and magnetically attract the first magnet block.

[0014] Preferably, the motor is located at the top of the mounting cylinder, and the first gear is rotatably mounted on the inner wall of the mounting cylinder using a positioning frame.

[0015] Preferably, an assembly shell is provided through the back of the mounting cylinder, and a fan is provided inside the assembly shell.

[0016] Preferably, a first guide shell is provided through the bottom end of the mounting cylinder, and the first guide shell is located below the screen body. A collection shell is provided inside the bracket, and the collection shell is located below the first guide shell.

[0017] Preferably, a second flow guide shell is provided at one end of the mounting cylinder, which is used to guide qualified rice.

[0018] Beneficial effects:

[0019] The device incorporates a rotating assembly. A first gear, mounted on the inner wall of the mounting cylinder via a positioning frame, meshes with a gear ring on the outer side of the cylinder. A second gear at the motor output meshes with the first gear. Bearings ensure stable rotation of the positioning cylinder, reducing friction loss. When the motor drives the second gear to rotate, it in turn rotates the first gear, which in turn drives the gear ring, causing the positioning cylinder to rotate inside the mounting cylinder. This switches the clogged screen body to the cleaning station assembly shell side. A fan reverses direction to blow air onto the clogged screen body, providing airflow assistance for simple cleaning. When a set of screen bodies becomes clogged, it can be quickly switched to a spare screen body, enabling continuous production. This rotating screen switching design avoids downtime for cleaning, effectively improving the efficiency of the screening and separation device.

[0020] With a quick-release assembly, the No. 2 magnet is embedded between two adjacent screen bodies, and four sets of magnetic supports on the outside of the No. 2 magnet penetrate the positioning cylinder and magnetically attract the No. 1 magnet. The No. 1 magnet is fixed on the outside of the positioning cylinder. The magnetic attraction between the No. 1 and No. 2 magnets can fix the screen body inside the positioning cylinder. When disassembling, the screen body can be quickly removed by pulling the No. 2 magnet apart. The magnetic fixation simplifies the screen replacement process, effectively shortens downtime, and the screen can be replaced individually, effectively reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of one side of the overall structure of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the mounting cylinder of this utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the assembly shell of this utility model;

[0025] Figure 5 This is a schematic diagram of the meshing connection structure of the No. 1 gear, the gear ring, and the No. 2 gear of this utility model;

[0026] Figure 6 This is a schematic diagram of the positioning cylinder structure of this utility model;

[0027] Figure 7 In this utility model Figure 6 A magnified view of the local structure at point A.

[0028] In the diagram: 1. Mounting cylinder; 2. Bracket; 3. Control box; 4. Storage cylinder; 5. Conduit; 6. Support block; 7. Bearing; 8. Positioning cylinder; 9. Screen body; 10. Magnet block No. 1; 11. Magnet block No. 2; 12. Gear ring; 13. Gear No. 1; 14. Motor; 15. Gear No. 2; 16. Assembly shell; 17. Fan; 18. Guide shell No. 1; 19. Guide shell No. 2; 20. Collection shell. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a rice screening and separation device;

[0031] Includes the frame structure and the screening mechanism;

[0032] The screening mechanism includes a rotating component and a quick-release component; the rotating component is used to rotate and replace a clogged screen, and the quick-release component is used to quickly disassemble a clogged screen.

[0033] The rotating assembly includes a support structure, which includes a positioning cylinder 8 and bearings 7. Two sets of bearings 7 are sleeved on the outside of the positioning cylinder 8, and multiple sets of support blocks 6 are provided on the outside of both sets of bearings 7.

[0034] The rotating assembly includes a drive structure, which includes a motor 14 and a first gear 13. A gear ring 12 is provided on the outer side of the positioning cylinder 8 relative to the side of the bearing 7. The gear ring 12 meshes with the first gear 13. A second gear 15 is provided at the output end of the motor 14. The second gear 15 meshes with the first gear 13. The motor 14 is located at the top of the mounting cylinder 1. The first gear 13 is rotatably mounted on the inner wall of the mounting cylinder 1 using a positioning frame.

[0035] The quick-release assembly includes a first magnet 10 and a second magnet 11. The first magnet 10 is located on the outside of the positioning cylinder 8, and the second magnet 11 is magnetically attracted to the first magnet 10. The positioning cylinder 8 has three sets of screen bodies 9 embedded inside. The second magnet 11 is embedded between two adjacent sets of screen bodies 9. The second magnet 11 has four sets of support pillars on the outside of the second magnet 11, and the support pillars can move through the positioning cylinder 8 and magnetically attract the first magnet 10.

[0036] The support block 6 allows the two sets of bearings 7 to be suspended inside the mounting cylinder 1. The positioning cylinder 8 is located inside the two sets of bearings 7. The bearings 7 ensure the stable rotation of the positioning cylinder 8 and reduce friction loss. The positioning cylinder 8 provides installation support for the screen body 9. The second magnet block 11 is embedded between the two adjacent screen bodies 9. The four sets of magnet pillars on the outside of the second magnet block 11 pass through the positioning cylinder 8 and are magnetically attracted to the first magnet block 10. The first magnet block 10 is fixed on the outside of the positioning cylinder 8. The screen body 9 can be fixed inside the positioning cylinder 8 by the magnetic attraction of the first magnet block 10 and the second magnet block 11. When disassembling, the screen body 9 can be quickly removed by pulling the second magnet block 11 with external force.

[0037] The first gear 13 is rotatably mounted on the inner wall of the mounting cylinder 1 using a positioning frame, and the first gear 13 meshes with the toothed ring 12 on the outer side of the positioning cylinder 8. The second gear 15 at the output end of the motor 14 meshes with the first gear 13. After the motor 14 drives the second gear 15 to rotate, the second gear 15 drives the first gear 13 to rotate. The rotation of the first gear 13 drives the toothed ring 12, causing the positioning cylinder 8 to rotate inside the mounting cylinder 1. This switches the blocked screen body 9 to the cleaning station assembly shell 16. When a set of screen bodies 9 is blocked, it can be quickly rotated to switch to the spare screen body 9 to achieve continuous production. The rotating screen switching design avoids downtime for cleaning and effectively improves the working efficiency of the screening and separation device.

[0038] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a rice screening and separation device;

[0039] The frame structure includes a mounting cylinder 1 and a bracket 2. The bracket 2 is located at the bottom of the mounting cylinder 1. The mounting cylinder 1 is designed with an inclination. One end of multiple sets of support blocks 6 is connected to the inner wall of the mounting cylinder 1. The positioning cylinder 8 is movably located inside the mounting cylinder 1. A control box 3 is provided on the front of the bracket 2. A storage cylinder 4 is provided on one side of the mounting cylinder 1. A conduit 5 is provided through the bottom of the storage cylinder 4, and the other end of the conduit 5 is located inside the positioning cylinder 8. An assembly shell 16 is provided through the back of the mounting cylinder 1. A fan 17 is provided inside the assembly shell 16.

[0040] The frame structure consists of a mounting cylinder 1 and a support 2. The mounting cylinder 1 is designed with an incline to facilitate the flow of rice by gravity, improving screening efficiency. The support 2 supports the entire device and provides a suitable support height for the inclined mounting cylinder 1. The control box 3 integrates functions such as motor control and fan adjustment to achieve automated operation. The storage cylinder 4 is used to temporarily store a suitable amount of rice that needs to be screened and separated. The rice inside the storage cylinder 4 is transported to the screening area through a conduit 5, and the conduit 5 is equipped with a valve to control the flow rate of rice entering the screening area. The assembly shell 16 has a through-hole design. On the back of the mounting cylinder 1, the assembly shell 16 provides installation space and protection for the fan 17. The fan 17 can extract air from the inside of the mounting cylinder 1 and deliver it to the external air filtration equipment. When the screen body 9 becomes blocked and the screen is rotated to switch, the blocked screen body 9 is rotated to one side of the assembly shell 16. The fan 17 is then reversed to blow air onto the blocked screen body 9. The airflow can assist in the simple cleaning of the blocked screen body 9. For broken rice that is stuck in the screen body 9, it can be cleaned by disassembling the screen body 9.

[0041] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a rice screening and separation device;

[0042] The bottom end of the mounting cylinder 1 is provided with a first guide shell 18, which is located below the screen body 9. The support 2 is provided with a collection shell 20, which is located below the first guide shell 18. One end of the mounting cylinder 1 is provided with a second guide shell 19, which is used to guide qualified rice.

[0043] The first guide shell 18 is internally disposed at the bottom of the mounting cylinder 1. The first guide shell 18 can guide the broken rice after screening by the screen body 9 to the collection shell 20 for storage. The second guide shell 19 can guide the qualified rice grains screened by the screen body 9 to the storage box for storage.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rice screening and separating apparatus, characterized by, Includes the frame structure and the screening mechanism; The screening mechanism includes a rotating component and a quick-release component; the rotating component is used to rotate and replace a clogged screen, and the quick-release component is used to quickly disassemble the clogged screen. The rotating assembly includes a support structure, which includes a positioning cylinder (8) and bearings (7). Two sets of bearings (7) are sleeved on the outside of the positioning cylinder (8), and multiple sets of support blocks (6) are provided on the outside of both sets of bearings (7). The rotating assembly includes a drive structure, which includes a motor (14) and a first gear (13). A gear ring (12) is provided on the outer side of the positioning cylinder (8) relative to the side of the bearing (7). The gear ring (12) meshes with the first gear (13). A second gear (15) is provided at the output end of the motor (14). The second gear (15) meshes with the first gear (13). The quick-release assembly includes a first magnet block (10) and a second magnet block (11). The first magnet block (10) is located on the outside of the positioning cylinder (8), and the second magnet block (11) is magnetically attracted to the first magnet block (10).

2. The rice screening and separating apparatus according to claim 1, wherein: The frame mechanism includes a mounting cylinder (1) and a bracket (2). The bracket (2) is located at the bottom of the mounting cylinder (1). The mounting cylinder (1) is designed to be inclined. One end of multiple sets of support blocks (6) is connected to the inner wall of the mounting cylinder (1). The positioning cylinder (8) is movably located inside the mounting cylinder (1).

3. The rice screening and separating apparatus according to claim 2, wherein: The front of the bracket (2) is provided with a control box (3), and a storage cylinder (4) is provided on one side of the mounting cylinder (1). A conduit (5) is provided through the bottom end of the storage cylinder (4), and the other end of the conduit (5) is located inside the positioning cylinder (8).

4. The rice screening and separating apparatus of claim 1, wherein: The positioning cylinder (8) is internally fitted with three sets of screen bodies (9), and the second magnet block (11) is internally fitted between two adjacent sets of screen bodies (9). The second magnet block (11) is externally fitted with four sets of support columns, and the support columns can be moved through the positioning cylinder (8) and magnetically attracted to the first magnet block (10).

5. The rice screening and separation device as described in claim 1, characterized in that: The motor (14) is located at the top of the mounting cylinder (1), and the first gear (13) is rotatably mounted on the inner wall of the mounting cylinder (1) using a positioning frame.

6. The rice screening and separation device as described in claim 2, characterized in that: An assembly shell (16) is provided through the back of the mounting cylinder (1), and a fan (17) is provided inside the assembly shell (16).

7. The rice screening and separation device as described in claim 2, characterized in that: The bottom end of the mounting cylinder (1) is provided with a first guide shell (18), and the first guide shell (18) is located below the screen body (9). The bracket (2) is provided with a collection shell (20), and the collection shell (20) is located below the first guide shell (18).

8. The rice screening and separation device as described in claim 2, characterized in that: One end of the mounting cylinder (1) is provided with a second flow guide shell (19), which is used to guide qualified rice.

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