Rice processing bran screening device
By introducing bran processing and easy cleaning components into the rice processing equipment, the problem of bran accumulation has been solved, achieving efficient screening and rice grain collection, and improving the overall efficiency and resource utilization of rice processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANTAO HENGTAI RICE IND CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-04
AI Technical Summary
Existing rice processing bran screening devices suffer from bran buildup during screening, which affects screening efficiency, is difficult to clean, and is inconvenient to handle, resulting in resource waste and reduced equipment efficiency.
A device was designed that includes a bran processing component and a convenient cleaning component. The device collects bran through an air suction fan and pushes rice grains with a scraper, ensuring that the bran does not accumulate and is easy to clean, thereby improving screening efficiency and rice grain collection effect.
It effectively prevents rice bran clogging, improves rice processing efficiency, reduces resource waste, and enhances equipment performance and rice grain collection.
Smart Images

Figure CN224586339U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rice processing technology, specifically relating to a rice processing sieve device. Background Technology
[0002] Paddy processing is the process of removing the husk and bran from paddy rice to produce edible rice. Its core objective is to separate the endosperm from the husk and bran with minimal damage, preserving the rice's nutrients and flavor. Paddy processing consists of three main steps: cleaning, hulling, and milling. Cleaning removes impurities through methods such as screening, air separation, and magnetic separation; hulling uses rubber rollers or sand discs to remove the outer husk, and paddy-bran separation equipment improves hulling efficiency; milling gradually removes the bran through mechanical friction or grinding, producing rice of varying fineness.
[0003] Existing rice processing hulling devices are inconvenient to handle the rice husks and bran produced during rice sieving, leading to bran accumulation that affects the quality of the sieve plates, reduces sieving efficiency, and impacts equipment efficiency. Furthermore, the collected bran is difficult to process, wasting manpower. Additionally, the rice at the top of the processing box cannot be recycled after feeding, and dead corners are difficult to clean, resulting in rice waste. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides a rice processing husk sieving device, which features convenient husk removal and the ability to recycle scattered rice.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rice processing sifting device, comprising a processing box, a driving device installed in the middle of the interior of the processing box, a sieve plate fixed inside the driving device, a stirring device fixedly connected to the middle of the top of the processing box, a feeding hopper fixedly connected to one side of the top of the processing box, a convenient cleaning component fixedly connected to one side of the feeding hopper, a bran processing component installed at the upper interior of the processing box, and a guide plate fixed at the bottom interior of the processing box. The bran processing component includes a mounting frame, which is fixed to the upper part of the inside of the processing box. A collection device is installed inside the mounting frame, and several guide plates are fixed to the bottom of the inside of the mounting frame. A suction fan is symmetrically installed on one side of the mounting frame.
[0006] Preferably, the collection device includes a filter screen frame, which is inserted into the mounting frame. A sealing cover is fixed to the upper end of the filter screen frame, and a fixing plate is fixed to one side of the sealing cover. The fixing plate has a positioning hole inside.
[0007] Preferably, a positioning seat is fixed to one side surface of the mounting bracket corresponding to the fixing plate, a guide rod is fixed inside the positioning seat, a limit spring is sleeved on the surface of the guide rod, and a positioning plug is connected to one end of the limit spring.
[0008] Preferably, the bottom of the fixed plate has a snap-fit groove corresponding to the positioning seat, and the surface of the positioning block has a protrusion corresponding to the positioning hole.
[0009] Preferably, a sealing gasket is bonded to the edge of the sealing cover, and a support plate is fixed inside the mounting bracket corresponding to the filter screen frame.
[0010] Preferably, the convenient cleaning component includes a bearing seat, a bearing seat is symmetrically fixed on one side of the feed hopper, a bidirectional lead screw is installed inside the bearing seat, a slider is symmetrically connected to the surface of the bidirectional lead screw, a scraper is fixed to the top of the slider, and a handwheel is fixed to one end of the bidirectional lead screw.
[0011] Preferably, the surface of the handwheel is provided with anti-slip texture, and one side of the slider is attached to the surface of the feed hopper.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a bran processing component, uses an air suction fan to draw air in, allowing the bran after rice sieving to pass through the guide plate and be sucked into the interior of the mounting frame for collection. This prevents the bran from accumulating at the top of the sieve plate and causing blockage, which would affect the rice sieving effect, ensure the efficiency of rice processing, improve work quality, and allows for easy disassembly of the filter screen frame, thus improving the efficiency of bran cleaning.
[0013] 2. This utility model features a convenient cleaning component. Rotating the handwheel drives two sets of sliders to move the scraper, allowing the scraper to push the rice grains at the top of the processing box. The scraper is also arc-shaped to protect the stirring device, preventing rice grains at the four corners between the stirring device and the feed hopper from being left uncollected, thus reducing resource waste and improving the rice grain collection efficiency. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the husk processing component of this utility model; Figure 4 This is a schematic diagram of the collection device structure of this utility model; Figure 5 This is a schematic diagram of the convenient cleaning component structure of this utility model.
[0015] In the diagram: 1. Drive unit; 2. Processing box; 3. Mixing device; 4. Easy-cleaning component; 41. Scraper; 42. Slider; 43. Two-way lead screw; 44. Bearing seat; 45. Handwheel; 5. Feed hopper; 6. Rice bran processing component; 61. Collection device; 611. Filter screen frame; 612. Sealing cover; 613. Fixing plate; 614. Positioning hole; 615. Positioning seat; 616. Guide rod; 617. Limiting spring; 618. Positioning insert; 62. Suction fan; 63. Mounting bracket; 64. Guide plate; 7. Screen plate; 8. Material guide plate. Detailed Implementation
[0016] 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.
[0017] Example 1 Please see Figure 1-5 The present invention provides the following technical solution: a rice processing sieving device, including a processing box 2, a driving device 1 installed in the middle of the inside of the processing box 2, a sieve plate 7 fixed inside the driving device 1, a stirring device 3 fixedly connected to the middle of the top of the processing box 2, a feeding hopper 5 fixedly connected to one side of the top of the processing box 2, a convenient cleaning component 4 fixedly connected to one side of the feeding hopper 5, a bran processing component 6 installed at the upper inside of the processing box 2, and a guide plate 8 fixed at the bottom inside the processing box 2. The bran processing component 6 includes a mounting frame 63, which is fixed to the upper part of the inside of the processing box 2. A collection device 61 is installed inside the mounting frame 63. Several guide plates 64 are fixed to the bottom of the inside of the mounting frame 63. A suction fan 62 is symmetrically installed on one side of the mounting frame 63.
[0018] Specifically, the collection device 61 includes a filter screen frame 611, which is inserted into the mounting frame 63. A sealing cover 612 is fixed to the upper end of the filter screen frame 611, and a fixing plate 613 is fixed to one side of the sealing cover 612. A positioning hole 614 is provided inside the fixing plate 613.
[0019] By adopting the above technical solution, the bran inside the suction mounting frame 63 is filtered and blocked by the filter screen frame 611, ensuring the stability of bran collection.
[0020] Specifically, a positioning seat 615 is fixed to one side surface of the mounting bracket 63 corresponding to the fixing plate 613. A guide rod 616 is fixed inside the positioning seat 615. A limit spring 617 is sleeved on the surface of the guide rod 616. One end of the limit spring 617 is connected to a positioning plug 618.
[0021] By adopting the above technical solution, when it is necessary to process the bran inside the filter frame 611, the positioning block 618 is pulled to slide along the guide rod 616, causing the limiting spring 617 to be compressed. At this time, the protrusion on the surface of the positioning block 618 disengages from the positioning hole 614. Then, the sealing cover 612 is pulled up to remove the fixing plate 613 from the upper end of the positioning seat 615, ensuring the convenience of disassembling the filter frame 611, improving the bran processing efficiency, and ensuring the quality of equipment use.
[0022] Specifically, the bottom of the fixed plate 613 has a snap-fit groove corresponding to the positioning seat 615, and the surface of the positioning insert 618 has a protrusion corresponding to the positioning hole 614.
[0023] By adopting the above technical solution, the accuracy and stability of the installation of the fixing plate 613 are ensured, and the fixing strength is improved.
[0024] Specifically, a sealing gasket is bonded to the edge of the sealing cover 612, and a support plate is fixed inside the mounting bracket 63 corresponding to the filter screen frame 611.
[0025] By adopting the above technical solution, the sealing quality between the sealing cover 612 and the mounting bracket 63 is guaranteed during use, and air leakage is prevented.
[0026] In this embodiment, during rice processing, rice is fed into the processing box 2 from the feed hopper 5. At the same time, the drive device 1 and the stirring device 3 are turned on to stir and sieve the rice. Then, the suction fan 62 is started to suck in air, so that the bran after rice sieving can pass through the guide plate 64 and be sucked into the interior of the mounting frame 63 for collection. This prevents the bran from accumulating on the upper end of the sieve plate 7 and causing blockage, which would affect the rice sieving effect, ensure the efficiency of rice processing, and improve the quality of work. The bran inside the suction mounting frame 63 is filtered and blocked by the filter screen frame 611. When it is necessary to process the bran inside the filter screen frame 611, the positioning block 618 is pulled and slid along the guide rod 616, causing the limit spring 617 to be compressed. At this time, the protrusion on the surface of the positioning block 618 disengages from the positioning hole 614. Then, the sealing cover 612 is pulled up to remove the fixing plate 613 from the upper end of the positioning seat 615, ensuring the convenience of disassembling the filter screen frame 611, improving the bran processing efficiency, and ensuring the quality of equipment use.
[0027] Example 2 The difference between this embodiment and embodiment 1 is that: specifically, the convenient cleaning component 4 includes a bearing seat 44, a bearing seat 44 is symmetrically fixed on one side of the feed hopper 5, a bidirectional lead screw 43 is installed inside the bearing seat 44, a slider 42 is symmetrically connected to the surface of the bidirectional lead screw 43, a scraper 41 is fixed to the top of the slider 42, and a handwheel 45 is fixed to one end of the bidirectional lead screw 43.
[0028] By adopting the above technical solution, when it is necessary to collect the rice grains that have fallen to the top of the processing box 2 after the rice processing is completed, the handwheel 45 is turned to drive the two sets of sliders 42 to move the scraper 41, so that the scraper 41 can push the rice grains at the top of the processing box 2. The scraper 41 is set in an arc shape to protect the stirring device 3, so as to prevent the rice grains at the four corners between the stirring device 3 and the feed hopper 5 from not being collected, thereby reducing resource waste and improving the rice grain collection effect.
[0029] Specifically, the surface of the handwheel 45 is provided with anti-slip texture, and one side of the slider 42 is attached to the surface of the feed hopper 5.
[0030] By adopting the above technical solution, the ease of use of the handwheel 45 is improved, and the stability of the movement of the slider 42 is guaranteed.
[0031] In this embodiment, when rice grains that have fallen onto the upper part of the processing box 2 need to be collected after the rice processing is completed, the handwheel 45 is turned to drive the two sets of sliders 42 to move the scraper 41. The scraper 41 can push the rice grains on the upper part of the processing box 2. The scraper 41 is set in an arc shape to protect the stirring device 3, preventing the rice grains at the four corners between the stirring device 3 and the feed hopper 5 from not being collected, reducing resource waste and improving the rice grain collection effect.
[0032] The structure and operating principle of the driving device 1, stirring device 3 and sieve plate 7 in this utility model have been disclosed in a rice processing sieve device disclosed in Chinese patent application number 202121471546.7.
[0033] The working principle and usage process of this utility model are as follows: When using this utility model, rice is fed into the processing box 2 from the feed hopper 5 for processing. At the same time, the drive device 1 and the stirring device 3 are turned on to stir and sieve the rice. Then, the suction fan 62 is started to suck in air, so that the bran after rice sieving can pass through the guide plate 64 and be sucked into the interior of the mounting frame 63 for collection. This prevents the bran from accumulating on the upper end of the sieve plate 7 and causing blockage, which would affect the rice sieving effect, ensure the efficiency of rice processing, and improve the quality of work. The bran inside the suction mounting frame 63 is filtered and blocked by the filter screen frame 611. When it is necessary to process the bran inside the filter screen frame 611, the positioning block 618 is pulled and slid along the guide rod 616, causing the limit spring 617 to be compressed. At this time, the protrusion on the surface of the positioning block 618 disengages from the positioning hole 614. Then, the sealing cover 612 is pulled up to remove the fixing plate 613 from the upper end of the positioning seat 615, ensuring the convenience of disassembling the filter screen frame 611, improving the bran processing efficiency, and ensuring the quality of equipment use. When the rice grains that have fallen onto the top of the processing box 2 need to be collected after the rice processing is completed, the handwheel 45 is turned to drive the two sets of sliders 42 to move the scraper 41. The scraper 41 can push the rice grains on the top of the processing box 2. The scraper 41 is set in an arc shape to protect the stirring device 3, so as to prevent the rice grains at the four corners between the stirring device 3 and the feed hopper 5 from not being collected, thereby reducing resource waste and improving the rice grain collection effect.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rice processing sieving device, comprising a processing box (2), wherein a driving device (1) is installed in the middle of the interior of the processing box (2), a sieve plate (7) is fixed inside the driving device (1), a stirring device (3) is fixedly connected to the middle of the top of the processing box (2), and a feed hopper (5) is fixedly connected to one side of the top of the processing box (2), characterized in that: A convenient cleaning component (4) is fixed on one side of the feed hopper (5), a bran processing component (6) is installed at the upper part of the inside of the processing box (2), and a guide plate (8) is fixed at the bottom of the inside of the processing box (2). The bran processing component (6) includes a mounting frame (63), which is fixed to the upper part of the inside of the processing box (2). A collection device (61) is installed inside the mounting frame (63). Several guide plates (64) are fixed to the bottom inside the mounting frame (63). A suction fan (62) is symmetrically installed on one side of the mounting frame (63).
2. The rice processing sifting device according to claim 1, characterized in that: The collection device (61) includes a filter screen frame (611), which is inserted into the inside of the mounting frame (63). A sealing cover (612) is fixed to the upper end of the filter screen frame (611), and a fixing plate (613) is fixed to one side of the sealing cover (612). A positioning hole (614) is opened inside the fixing plate (613).
3. The rice processing sifting device according to claim 1, characterized in that: A positioning seat (615) is fixed on one side surface of the mounting bracket (63) corresponding to the fixing plate (613). A guide rod (616) is fixed inside the positioning seat (615). A limit spring (617) is sleeved on the surface of the guide rod (616). A positioning plug (618) is connected to one end of the limit spring (617).
4. The rice processing sifting device according to claim 3, characterized in that: The bottom of the fixed plate (613) is provided with a snap-fit groove corresponding to the positioning seat (615), and the surface of the positioning insert (618) is provided with a protrusion corresponding to the positioning hole (614).
5. A rice processing sifting device according to claim 2, characterized in that: A sealing gasket is bonded to the edge of the sealing cover (612), and a support plate is fixed inside the mounting bracket (63) corresponding to the filter screen frame (611).
6. The rice processing sifting device according to claim 1, characterized in that: The convenient cleaning component (4) includes a bearing seat (44), a bearing seat (44) is symmetrically fixed on one side of the feed hopper (5), a double-acting screw (43) is installed inside the bearing seat (44), a slider (42) is symmetrically connected to the surface of the double-acting screw (43), a scraper (41) is fixed at the top of the slider (42), and a handwheel (45) is fixed at one end of the double-acting screw (43).
7. A rice processing sifting device according to claim 6, characterized in that: The surface of the handwheel (45) is provided with anti-slip texture, and one side of the slider (42) is attached to the surface of the feed hopper (5).