A screening machine for rice processing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHISHOU QIAOQIAO RICE IND CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
AI Technical Summary
Existing rice processing cleaning machines cannot flexibly adjust the screening size, resulting in screening limitations.
Design a screening machine that includes a switching mechanism. The screening box can be quickly switched by a servo motor-driven gear system. The aperture of the screening box is adjustable. Combined with the synchronous movement of the vibrator and the collection hopper, different screening requirements can be met.
It enables flexible adjustment of the screening size to meet different screening needs, thereby improving the screening efficiency and impurity collection effect in rice processing.
Smart Images
Figure CN224272078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice processing technology, and in particular to a cleaning and screening machine for rice processing. Background Technology
[0002] Rice is a staple food for supplementing nutrients. It is made from paddy through processes such as cleaning, hulling, milling, and finishing. To ensure the quality of rice, rice screening is an indispensable step in the processing.
[0003] The prior art, with publication number CN221733991U, discloses a rice cleaning and screening machine, which relates to the field of cleaning and screening machine technology. It includes a cleaning and screening machine box, a feeding hopper fixedly connected to the top right side of the cleaning and screening machine box, a filter screen fixedly connected to the middle of the inner side of the cleaning and screening machine box, a support frame fixedly connected to the middle of the filter screen, and a cleaning mechanism slidably connected to the top of the filter screen.
[0004] When in use, it sieves rice, but it can only sieve rice of a fixed size and cannot flexibly adjust the size of the sieved rice, which has certain limitations. Therefore, it is necessary to design a rice cleaning and sieving machine to solve the above problems.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide a cleaning and screening machine for rice processing to solve the above-mentioned problems.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rice cleaning and screening machine, comprising:
[0008] A screen cleaning machine body, wherein a switching mechanism is provided on the screen cleaning machine body;
[0009] The switching mechanism includes a screening box, a rice adding hopper, a vertical rod, a connector, a collection hopper, a rotating pipe, and a guide pipe;
[0010] The rice adding hopper is rotatably mounted on the sieving machine body. The bottom of the rice adding hopper is fixedly connected to the vertical rod. The connecting piece is fixedly mounted between the vertical rod and the collecting hopper. The rotating pipe is fixedly connected to the collecting hopper. The rotating pipe is rotatably mounted on the sieving machine body. The guide pipe is fixedly mounted on the rice adding hopper.
[0011] A further feature of this invention is that the switching mechanism includes a connecting frame, a vibrator, and a servo motor. The connecting frame is fixedly installed on the top inner wall of the cleaning machine body, and the bottom of the connecting frame is fixedly connected to the screening box. The vibrator is fixedly installed on the screening box, and the servo motor is fixedly installed on the top of the cleaning machine body. Gears are fixedly provided on both the output end of the servo motor and the outer side of the rice adding hopper, and the two gears mesh with each other.
[0012] A further feature of this invention is that the number of screening boxes is multiple, and the screening boxes are provided with sieve holes, with different sieve hole diameters on different screening boxes.
[0013] By adopting the above technical solution, it is convenient to switch to other uses.
[0014] A further feature of this invention is that the top of the hopper is in contact with the screening box.
[0015] A further feature of this invention is that one side of the screening box is closed, and the other side of the screening box is open.
[0016] By adopting the above technical solution, it is convenient to screen and process rice.
[0017] A further feature of this invention is that the bottom of the rice adding hopper is sealed, and the conduit is connected to the inside of the rice adding hopper.
[0018] By adopting the above technical solution, it is convenient to export rice from the conduit.
[0019] A further feature of this invention is that a feed pipe is fixedly installed on the screen cleaning machine body, and the bottom inner wall of the screen cleaning machine body is inclined.
[0020] A further feature of this invention is that a support frame is fixedly installed at the bottom of the cleaning machine body.
[0021] By adopting the above technical solution, the cleaning and screening machine body can be stably supported.
[0022] A further feature of this invention is that the conduit is located above a screening box.
[0023] A further feature of this invention is that the screening box is tilted.
[0024] The beneficial effects of this utility model are:
[0025] This utility model, through its switching mechanism, allows the servo motor to be activated and different screening boxes to be quickly switched when the screening size needs to be adjusted, thus meeting different screening requirements. After switching positions, the position of the collection hopper is switched synchronously, facilitating the collection and processing of impurities screened out by different screening boxes. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the structure of a rice cleaning and sieving machine proposed in this utility model.
[0028] Figure 2 This is a cross-sectional view of a rice cleaning and sieving machine proposed in this utility model. Figure 1 .
[0029] Figure 3 This is a cross-sectional view of a rice cleaning and sieving machine proposed in this utility model. Figure 2 .
[0030] Figure 4 yes Figure 2 A schematic diagram of part A in the diagram.
[0031] Figure 5 yes Figure 2 A schematic diagram of part B in the diagram.
[0032] In the diagram, 1. Screening machine body; 2. Connecting frame; 3. Screening box; 4. Vibrator; 5. Rice adding hopper; 6. Servo motor; 7. Gear; 8. Vertical rod; 9. Connecting parts; 10. Collecting hopper; 11. Rotary pipe; 12. Guide pipe; 13. Feeding pipe; 14. Support frame. Detailed Implementation
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.
[0034] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a rice cleaning and screening machine, comprising:
[0036] The screen cleaning machine body 1 is equipped with a switching mechanism. It should be noted that, through the switching mechanism, when it is necessary to adjust the screening size, the servo motor 6 can be started to quickly switch between different screening boxes 3 for use to meet different screening needs. In this embodiment, two screening boxes 3 are selected. In actual application, the number of screening boxes 3 can be selected according to actual needs.
[0037] The switching mechanism includes a screening box 3, a rice adding hopper 5, a vertical rod 8, a connector 9, a collection hopper 10, a rotating pipe 11, and a guide pipe 12;
[0038] The rice adding hopper 5 is rotatably mounted on the cleaning and screening machine body 1. The bottom of the rice adding hopper 5 is fixedly connected to the vertical rod 8. The connecting piece 9 is fixedly mounted between the vertical rod 8 and the collecting hopper 10. The rotating pipe 11 is fixedly connected to the collecting hopper 10. The rotating pipe 11 is rotatably mounted on the cleaning and screening machine body 1. The guide pipe 12 is fixedly mounted on the rice adding hopper 5. It should be noted that the rotating position of the rotating pipe 11 and the rotating position of the rice adding hopper 5 are located on the same vertical axis, so as to ensure normal synchronous rotation.
[0039] Through the aforementioned switching mechanism, rice enters the conduit 12 through the rice adding hopper 5, and then enters a screening box 3 through the conduit 12 for screening. Impurities fall into the collecting hopper 10 after screening and are discharged through the rotating pipe 11. The screened rice falls into the cleaning machine body 1 through the screening box 3 and is then discharged through the discharge pipe 13.
[0040] Specifically, the switching mechanism also includes a connecting frame 2, a vibrator 4, and a servo motor 6. The connecting frame 2 is fixedly installed on the top inner wall of the cleaning machine body 1. The bottom of the connecting frame 2 is fixedly connected to the screening box 3. The vibrator 4 is fixedly installed on the screening box 3. The servo motor 6 is fixedly installed on the top of the cleaning machine body 1. Gears 7 are fixedly installed on the output end of the servo motor 6 and the outside of the rice adding hopper 5. The two gears 7 mesh with each other.
[0041] Through the aforementioned switching mechanism, when it is necessary to adjust the screening size, the servo motor 6 is activated, which causes the rice adding hopper 5 to rotate. This causes both the guide tube 12 and the collecting hopper 10 to rotate, so that the guide tube 12 moves above another screening box 3, and the collecting hopper 10 comes into contact with the screening box 3 below the guide tube 12. This allows for quick switching between different screening boxes 3 to meet different screening needs.
[0042] Specifically, there are multiple screening boxes 3, each with a screen hole. The screen hole diameter varies on different screening boxes 3 to meet different screening needs.
[0043] Specifically, the top of the collecting hopper 10 is in contact with the screening box 3. One side of the screening box 3 is closed, and the other side of the screening box 3 is open. The bottom of the rice adding hopper 5 is closed. The conduit 12 is connected to the inside of the rice adding hopper 5. The conduit 12 is located above a screening box 3. The screening box 3 is tilted. It should be noted that this makes it convenient to screen rice.
[0044] Specifically, a support frame 14 is fixedly installed at the bottom of the screening machine body 1, and a feeding pipe 13 is fixedly installed on the screening machine body 1. The inner wall of the bottom of the screening machine body 1 is inclined. It should be noted that the inclined setting makes it convenient to guide the screened rice to the position of the feeding pipe 13, and then process it through the feeding pipe 13.
[0045] Working principle:
[0046] S1: Rice enters from the rice adding hopper 5. Since the bottom of the rice adding hopper 5 is closed, the rice can only flow out through the conduit 12 fixedly installed on it. At this time, the conduit 12 is located directly above one of the screening boxes 3. The rice falls into the screening box 3 through the conduit 12. The screening box 3 is set at an angle and has sieve holes. The sieve hole diameters of different screening boxes 3 are different. During the screening process, the vibrator 4 installed on the screening box 3 starts to work. The vibration causes the rice to move continuously in the screening box 3. Smaller rice particles and impurities can fall through the sieve holes more quickly, while larger rice particles continue to move along the inclined screening box 3. One side of the screening box 3 is closed and the other side is open. Rice that does not pass through the sieve holes eventually leaves the screening box 3 from the open side.
[0047] S2: Impurities falling through the sieve holes fall directly into the collection hopper 10. The top of the collection hopper 10 is in contact with the screening box 3 to ensure that the impurities will not spill. The impurities can be discharged from the cleaning machine body 1 through the rotating pipe 11. The screened rice falls into the cleaning machine body 1. Due to the inclined inner wall of the bottom of the cleaning machine body 1, the rice will flow to a lower position and be discharged through the discharge pipe 13 fixed on the cleaning machine body 1.
[0048] S3: Start the servo motor 6 installed on the top of the cleaning machine body 1. The output end of the servo motor 6 and the outside of the rice adding hopper 5 are both fixedly equipped with meshing gears 7. When the servo motor 6 runs, the gear 7 at its output end drives the gear 7 on the outside of the rice adding hopper 5 to rotate, thereby causing the rice adding hopper 5 to rotate around the position on the cleaning machine body 1. Since the bottom of the rice adding hopper 5 is fixedly connected to the vertical rod 8, and the vertical rod 8 is connected to the collecting hopper 10 through the connecting piece 9, and the rotating pipe 11 is fixed to the collecting hopper 10 and rotatably installed on the cleaning machine body 1, when the rice adding hopper 5 rotates, the vertical rod 8, the collecting hopper 10, the rotating pipe 11, and the guide tube 12 fixed on the rice adding hopper 5 will all rotate synchronously. During the rotation, the guide tube 12 gradually moves to the top of another screening box 3, and at the same time, the collecting hopper 10 also rotates to the position of contacting the screening box 3. This completes the switching of different screening boxes 3. Since the screen hole diameters of different screening boxes 3 are different, different screening needs are met.
[0049] The above provides a detailed description of a rice cleaning and sieving machine for rice processing provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A rice cleaning and sieving machine, characterized in that, include: A screen cleaning machine body (1) is provided with a switching mechanism; The switching mechanism includes a screening box (3), a rice adding hopper (5), a vertical rod (8), a connector (9), a collection hopper (10), a rotating pipe (11), and a guide pipe (12); The rice adding hopper (5) is rotatably mounted on the sieving machine body (1). The bottom of the rice adding hopper (5) is fixedly connected to the vertical rod (8). The connecting piece (9) is fixedly mounted between the vertical rod (8) and the collecting hopper (10). The rotating pipe (11) is fixedly connected to the collecting hopper (10). The rotating pipe (11) is rotatably mounted on the sieving machine body (1). The guide pipe (12) is fixedly mounted on the rice adding hopper (5).
2. The rice cleaning and screening machine according to claim 1, characterized in that, The switching mechanism also includes a connecting frame (2), a vibrator (4) and a servo motor (6). The connecting frame (2) is fixedly installed on the top inner wall of the cleaning machine body (1). The bottom of the connecting frame (2) is fixedly connected to the screening box (3). The vibrator (4) is fixedly installed on the screening box (3). The servo motor (6) is fixedly installed on the top of the cleaning machine body (1). Gears (7) are fixedly installed on the output end of the servo motor (6) and on the outside of the rice adding hopper (5). The two gears (7) mesh with each other.
3. A rice cleaning and screening machine according to claim 1, characterized in that, The number of screening boxes (3) is multiple, and the screening boxes (3) are provided with sieve holes. The sieve holes on different screening boxes (3) have different apertures.
4. A rice cleaning and screening machine according to claim 1, characterized in that, The top of the hopper (10) is in contact with the screening box (3).
5. A rice cleaning and screening machine according to claim 1, characterized in that, The screening box (3) is closed on one side and open on the other side.
6. A rice cleaning and screening machine according to claim 1, characterized in that, The bottom of the rice adding hopper (5) is closed, and the conduit (12) is connected to the inside of the rice adding hopper (5).
7. A rice cleaning and screening machine according to claim 1, characterized in that, The screen cleaning machine body (1) is fixedly provided with a feed pipe (13), and the bottom inner wall of the screen cleaning machine body (1) is inclined.
8. A rice cleaning and screening machine according to claim 1, characterized in that, The bottom of the cleaning machine body (1) is fixedly equipped with a support frame (14).
9. A rice cleaning and screening machine according to claim 1, characterized in that, The conduit (12) is located above a screening box (3).
10. A rice cleaning and screening machine according to claim 1, characterized in that, The screening box (3) is set at an angle.