Screening device for manufacturing germ-remaining rice
By designing a device that relies on the gravity of the germ-retained rice for multi-stage screening, the problems of low screening efficiency and easy breakage of rice grains were solved, achieving a high-efficiency and energy-saving screening effect and improving the quality of germ-retained rice.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-04-03
AI Technical Summary
Existing germ-retaining rice screening devices suffer from low screening efficiency, easy breakage of rice grains, and high power consumption.
Design a screening device that uses the gravity of the germ rice to move the screen up and down, and performs screening through a multi-stage screening component, including a first screen, a second screen and a third screen, combined with a lifting guide component and a dispersing component to avoid external power consumption.
It improves screening efficiency, reduces rice grain breakage, lowers energy consumption, and enhances the quality and integrity of germ-retained rice.
Smart Images
Figure CN224072635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sieving technology for germ-retained rice, and in particular to a sieving device for producing germ-retained rice. Background Technology
[0002] In the production of germ-retained rice, screening is a key process. Its purpose is to separate rice grains of different grades, sizes and impurity contents to meet different processing requirements or product quality standards and ensure the quality of the final product.
[0003] There are two main types of existing screening devices: one relies solely on gravity, and the other relies on mechanical vibration for screening. Relying solely on gravity results in low screening efficiency, which is difficult to meet the needs of modern production. It has low working efficiency and low screening accuracy. On the other hand, mechanical vibration screening can easily cause rice grains to break, affecting the quality of the final product. Furthermore, it requires a continuous power supply during the screening process, resulting in high energy consumption.
[0004] Therefore, in order to address the problems of low screening efficiency, easy damage to rice grains, and high power consumption, a screening device for making germ-retaining rice can be designed. Utility Model Content
[0005] To overcome the problems of low screening efficiency, easy damage to rice grains, and high power consumption.
[0006] The technical solution of this utility model is as follows: a screening device for making germ-retained rice, including a screening box; a detachable front cover plate is fixedly connected to the front end of the screening box; a material hopper is fixedly connected to the upper end of the screening box; it also includes a screening component, a lifting and guiding component, and a dispersing component; the screening component is movably connected to the inner side of the screening box; a lifting and guiding component connected to the screening component is installed on the inner side of the top plate of the screening box; a dispersing component is installed at the upper inlet of the screening box; the screening component includes a first screen, a second screen, and a third screen; the first screen, the second screen, and the third screen are fixedly connected in sequence by support columns; the lifting and guiding component includes a guide rod; a limit baffle is fixedly connected to the upper end of the guide rod; a spring is fixedly connected between the limit baffle and the screening box; the dispersing component includes a rotating shaft; annularly distributed dispersing blades are fixedly connected to the outer side of the rotating shaft; a second sealing strip is fixedly connected to the outer side of the dispersing blades.
[0007] Preferably, the germ rice is continuously added to the hopper. The second sealing strip prevents the germ rice from getting stuck in the gaps. Under the action of gravity, the dispersing blades on the outside of the rotating shaft rotate, and the germ rice enters the space formed by the screening box and the front cover plate, falling onto the first screen for screening. Some of the germ rice falls onto the second screen for a second screening, and then through the third screen for a third screening. During the falling process, the germ rice presses down on the first screen, the guide rod and the limiting baffle move downwards, and the spring is compressed. Under the action of the support column, the second and third screens move downwards synchronously. Before the next feeding, the springs rebound upwards, realizing the up-and-down reciprocating motion of the first, second and third screens, improving the screening effect.
[0008] Preferably, the screening assembly also includes a first sealing strip; the first sealing strip is fixedly connected to both ends of the first screen, the second screen and the third screen, and fits against the inner wall of the screening box.
[0009] Preferably, guide strips are fixedly connected to the upper ends of the higher side of the first screen, the second screen, and the third screen; the lower end of the guide rod is fixedly connected to the first screen.
[0010] Preferably, a discharge port is provided at the front end of the front cover plate; a guide plate extending outward through the discharge port is fixedly connected to the inner wall of the rear side of the screening box.
[0011] Preferably, the left and right ends of the screening box are provided with discharge ports that correspond one-to-one with the first screen, the second screen and the third screen.
[0012] Preferably, the inner wall of the rear side of the screening box is provided with guide grooves that are symmetrically distributed on the left and right sides; a guide block that is fixedly connected to the screening component is slidably connected in the guide groove.
[0013] The beneficial effects of this utility model are as follows: Based on the traditional gravity screening device, through innovative structural design, the screen moves up and down by relying on the gravity of the germ rice itself, thereby better screening the germ rice, improving work efficiency, and requiring no external power source, consuming no electricity, making it more energy-saving and environmentally friendly, and without damaging the germ rice, effectively improving the quality and integrity of the germ rice. Attached Figure Description
[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of the screening device for making germ-preserving rice according to this utility model.
[0015] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the screening device for making germ-preserving rice according to this utility model.
[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the screening component and the lifting guide component in the screening device for making germ-retained rice according to this utility model.
[0017] Figure 4 The diagram shown is a three-dimensional structural schematic of the dispersing and feeding component in the screening device for making germ-retained rice according to this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Screening box; 2. Front cover plate; 3. Hopper; 41. First screen; 42. Second screen; 43. Third screen; 44. Support column; 45. First sealing strip; 46. Guide strip; 51. Guide rod; 52. Limiting baffle; 53. Spring; 61. Rotating shaft; 62. Dispersing blade; 63. Second sealing strip; 7. Discharge port; 8. Guide plate; 9. Outlet; 10. Guide groove; 11. Guide block. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please see Figures 1-4 This utility model provides an embodiment of a sieving device for producing germ-retained rice, comprising a sieving box 1; a detachable front cover plate 2 fixedly connected to the front end of the sieving box 1; a material hopper 3 fixedly connected to the upper end of the sieving box 1; further comprising a sieving assembly, a lifting and guiding assembly, and a dispersing and feeding assembly; the sieving assembly is movably connected to the inner side of the sieving box 1; a lifting and guiding assembly connected to the sieving assembly is installed on the inner side of the top plate of the sieving box 1; a dispersing and feeding assembly is installed at the upper inlet of the sieving box 1; the sieving assembly includes a first screen 41. The first screen 41, the second screen 42, and the third screen 43 are fixedly connected in sequence by support columns 44; the lifting guide assembly includes a guide rod 51; a limit baffle 52 is fixedly connected to the upper end of the guide rod 51; a spring 53 is fixedly connected between the limit baffle 52 and the screening box 1; the dispersing assembly includes a rotating shaft 61; annularly distributed dispersing blades 62 are fixedly connected to the outside of the rotating shaft 61; a second sealing strip 63 is fixedly connected to the outside of the dispersing blades 62.
[0021] Please see Figure 3 In this embodiment, the screening assembly also includes a first sealing strip 45; the first screen 41, the second screen 42 and the third screen 43 are all fixedly connected to the front and rear ends with the first sealing strip 45 that fits against the inner wall of the screening box 1; the upper end of the higher side of the first screen 41, the second screen 42 and the third screen 43 are all fixedly connected with a guide strip 46; the lower end of the guide rod 51 is fixedly connected to the first screen 41, which performs multi-stage screening of the germ rice, improves the grading accuracy, and achieves screening without relying on external power, making it more energy-efficient.
[0022] Please see Figures 1-3In this embodiment, a discharge port 7 is provided at the front end of the front cover plate 2; a guide plate 8 extending outward through the discharge port 7 is fixedly connected to the inner rear wall of the screening box 1; discharge ports 9 corresponding to the first screen 41, the second screen 42 and the third screen 43 are provided at both the left and right ends of the screening box 1; guide grooves 10 are symmetrically distributed on the inner rear wall of the screening box 1; guide blocks 11 fixedly connected to the screening components are slidably connected in the guide grooves 10 to prevent the first screen 41, the second screen 42 and the third screen 43 from shifting when moving up and down.
[0023] During operation, the germ rice is continuously added to the hopper 3. The second sealing strip 63 prevents the germ rice from getting stuck in the gaps. Under the action of gravity, the dispersing blades 62 on the outside of the rotating shaft 61 rotate, and the germ rice enters the space formed by the screening box 1 and the front cover plate 2, falling onto the first screen 41 for screening. Some of the germ rice falls onto the second screen 42 for a second screening, and then through the third screen 43 for a third screening. During the falling process, the germ rice presses down on the first screen 41, the guide rod 51 and the limiting baffle 52 move downward, and the spring 53 is compressed. Under the action of the support column 44, the guide blocks 11 at the rear ends of the second screen 42 and the third screen 43 move downward synchronously in the guide groove 10. Before the next feeding, the spring 53 rebounds upward, realizing the up-and-down reciprocating motion of the first screen 41, the second screen 42 and the third screen 43, improving the screening effect. The germ rice from the last screening is discharged through the guide plate 8.
[0024] Through the above steps, based on the traditional gravity screening device, the screen moves up and down by relying on the gravity of the germ rice itself, which improves working efficiency. It does not require an external power source, consumes no electricity, and does not damage the germ rice. It effectively improves the quality and integrity of the germ rice, thus solving the problems of low screening efficiency, easy breakage of rice grains, and high power consumption.
[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A screening device for making embryo rice, comprising a screening box (1); a detachable front cover plate (2) is fixedly connected to the front end of the screening box (1); a bin (3) is fixedly connected to the upper end of the screening box (1); characterized in that: The screen assembly, the lifting guide assembly and the dispersing and discharging assembly are further included; the screen assembly is movably connected to the inner side of the screen box (1); the lifting guide assembly connected with the screen assembly is installed on the inner side of the top plate of the screen box (1); the dispersing and discharging assembly is installed at the material inlet on the upper end of the screen box (1); the screen assembly includes the first screen (41), the second screen (42) and the third screen (43); the first screen (41), the second screen (42) and the third screen (43) are fixedly connected through the support columns (44) in sequence; the lifting guide assembly includes the guide rod (51); the limit baffle (52) is fixedly connected to the upper end of the guide rod (51); the spring (53) is fixedly connected between the limit baffle (52) and the screen box (1); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the dispersing and discharging assembly includes the rotating shaft (61); the 2. The screening device for the production of whole grain rice according to claim 1, characterized in that: 3. The screening device for the production of whole grain rice according to claim 1, characterized in that: 4. The screening device for the production of whole grain rice according to claim 1, characterized in that: 5. The screening device for seed saving rice production according to claim 1, wherein: 6. The screening device for seed saving rice production according to claim 1, wherein: