Anti-leakage vibration cleaning sieve for rice processing
By designing blocking components, buffer components, and cleaning components in the rice processing equipment, the leakage problem caused by the fixed size of the feed inlet was solved, achieving effective screening of rice, reducing waste, and lowering costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUNZHIXIANG RICE CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional closed cleaning screens cause rice leakage and waste of raw materials in rice processing due to the fixed size of the feed inlet.
A leak-proof vibrating cleaning screen was designed, including a blocking component, a buffer component, and a cleaning component. The size of the feed opening is adjusted by the blocking component, the buffer component slows down the falling speed of rice, and the cleaning component prevents impurities from getting stuck in the screen holes.
It effectively prevents rice leakage, reduces raw material waste, lowers production costs, and improves screening efficiency and quality.
Smart Images

Figure CN224208511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing technology, and in particular to a leak-proof vibrating cleaning screen for rice processing. Background Technology
[0002] In the rice processing process, the closed cleaning screen is one of the key pieces of equipment, used to remove impurities from the rice and ensure the purity and quality of the rice. The cleaning screen separates impurities, dust and other particles from the rice through vibration and screening. At the same time, the closed design also prevents impurities and dust from splashing.
[0003] However, traditional closed cleaning screens have a common problem during use: when cleaning rice, the fixed size of the discharge port and the gap between it and the device are the main causes of rice leakage. If the size of the discharge port is too large, or its shape does not match the flow trajectory of the rice, the rice is easy to splash out from the edge of the discharge port, resulting in waste of raw materials. Utility Model Content
[0004] The purpose of this utility model is to solve the problem of rice leakage caused by the fixed size of the feed inlet and the gap between it and the device, and to propose a leakage-proof vibrating cleaning screen for rice processing.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A leak-proof vibrating cleaning screen for rice processing includes a vibrating frame body, a discharge frame fixedly installed at the bottom end of the vibrating frame body, a feed inlet at the top end of the vibrating frame body, a screen plate fixedly installed inside the vibrating frame body, and a blocking component to prevent rice from leaking from the discharge inlet on the vibrating frame body.
[0007] The blocking assembly includes a mounting bracket installed at the feed inlet of the vibrating machine frame body by screws. An arc-shaped frame is fixedly installed on one side of the mounting bracket. Two rotating plates are rotatably connected to the top of the mounting bracket. One end of each rotating plate is hinged to the vibrating machine frame body. Two movable plates are slidably connected inside the arc-shaped frame. A rotating component capable of adjusting the opening distance between the two rotating plates is mounted on the mounting bracket. A buffer component capable of buffering the rice is mounted inside the arc-shaped frame. A cleaning component capable of cleaning the screen plate is also mounted on the vibrating machine frame body.
[0008] As a further description of the above technical solution:
[0009] The rotating component includes a worm gear rotatably mounted at the bottom of the mounting frame, and a worm wheel is fixedly connected to one end of the rotating plate extending to the outside of the mounting frame.
[0010] As a further description of the above technical solution:
[0011] Two worm gears are located at the two ends of the worm and mesh with the worm. The connecting piece is made of flexible material, and one end of the moving plate is connected to the rotating plate through a hinge seat.
[0012] As a further description of the above technical solution:
[0013] The buffer component includes two arc-shaped plates fixedly installed inside the arc-shaped frame, with extension plates slidably connected to both ends of the arc-shaped plates.
[0014] As a further description of the above technical solution:
[0015] The arc-shaped plate and the extension plate are made of rubber. The two arc-shaped plates are staggered. One end of the extension plate is fixedly installed on the movable plate. The extension plate is arc-shaped.
[0016] As a further description of the above technical solution:
[0017] The cleaning assembly includes a servo motor fixedly installed on the outside of the vibratory frame body. Two lead screws are rotatably installed inside the vibratory frame body, and a scraper is threaded between the two lead screws. A gear is fixedly connected to one end of the lead screw extending to the outside of the vibratory frame body, and a synchronous belt meshes between the two gears.
[0018] As a further description of the above technical solution:
[0019] One end of one of the lead screws is fixedly mounted on the output end of the servo motor, and the bottom end of the scraper is in contact with the top end of the sieve plate.
[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0021] By setting up a blocking component, the opening size of the feed inlet can be precisely adjusted, flexibly controlling the feeding range of rice, thereby effectively preventing rice from leaking out of the feed inlet during the cleaning process, reducing raw material waste, and lowering production costs. The design of the buffer component, using an arc-shaped plate and extension plate made of rubber, can absorb the impact force when the rice falls, greatly reducing the speed and kinetic energy of the rice when it is discharged. This means that the splashing phenomenon caused by the rice when it comes into contact with the receiving device is significantly suppressed, preventing rice grains from scattering everywhere. The cleaning component can regularly clean the screen plate to prevent rice or impurities from getting stuck in the screen holes, ensuring the screening efficiency and quality of the screen plate. Attached Figure Description
[0022] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown;
[0023] Figure 2 An internal schematic diagram of the vibratory frame body provided according to an embodiment of the present invention is shown;
[0024] Figure 3 The present invention provides an embodiment of the present invention. Figure 2 Another perspective view;
[0025] Figure 4 The present invention provides an embodiment of the present invention. Figure 2 Enlarged view of region A in the middle;
[0026] Figure 5 A cross-sectional view of an arc-shaped frame provided according to an embodiment of the present invention is shown;
[0027] Figure 6 A schematic diagram of a buffer component according to an embodiment of the present invention is shown;
[0028] Figure 7 A schematic diagram of a cleaning component provided according to an embodiment of the present invention is shown.
[0029] Legend:
[0030] 10. Vibrating machine frame body; 11. Discharge rack; 12. Feed inlet; 13. Screen plate;
[0031] 20. Blocking assembly; 21. Mounting bracket; 22. Arc-shaped bracket; 23. Rotating plate; 24. Connector; 25. Moving plate; 26. Rotating component; 261. Worm gear; 262. Worm wheel; 27. Buffer component; 271. Arc-shaped plate; 272. Extension plate;
[0032] 30. Cleaning components; 31. Servo motor; 32. Lead screw; 33. Scraper; 34. Gear; 35. Synchronous belt. Detailed Implementation
[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0034] like Figures 1-7As shown, this utility model provides a leak-proof vibrating cleaning screen for rice processing, including a vibrating frame body 10. The vibrating frame body 10 is a Bühler TAS-LAAC combined cleaning screen in the prior art, mainly composed of a motor, a transmission device, and a main shaft with an eccentric block. When the motor drives the main shaft to rotate through a V-belt, the eccentric block generates centrifugal force. This centrifugal force serves as the excitation force, which is transmitted through the bearings and the frame, causing the entire vibrating frame body 10 to vibrate. A discharge rack 11 is fixedly installed at the bottom of the vibrating frame body 10. When the vibrating frame body 10... When the machine starts operating, the screen plate 13 will vibrate. The vibration will separate the rice grains on the screen plate 13 from the impurities, and the impurities will fall into the discharge rack 11 through the screen plate 13 and be discharged through the discharge port at the bottom of the discharge rack 11. The top of the vibrating machine frame body 10 is provided with a feed port 12, through which rice grains can be poured into the vibrating machine frame body 10. The screen plate 13 is fixedly installed inside the vibrating machine frame body 10. The screen plate 13 plays a role in screening the rice grains. The vibrating machine frame body 10 is equipped with a blocking component 20 to prevent rice grains from leaking from the discharge port.
[0035] The blocking assembly 20 includes a mounting frame 21 screwed onto the feed inlet of the vibrating machine frame body 10. An arc-shaped frame 22 is fixedly mounted on one side of the mounting frame 21. The screened rice enters the mounting frame 21 through the screen plate 13, and then enters the arc-shaped frame 22 through the mounting frame 21. The arc-shaped frame 22 acts as a guide for the rice, allowing it to be discharged through the bottom opening of the arc-shaped frame 22. Two rotating plates 23 are rotatably connected to the top of the mounting frame 21. The feed opening on the mounting frame 21 can be adjusted by the two rotating plates 23, thereby controlling the discharge of the rice. The feeding range is such that one end of the rotating plate 23 is hinged to the vibrating frame body 10 with a connecting piece 24, which blocks the gap between the rotating plate 23 and the vibrating frame body 10 to prevent rice from leaking out of the gap. The inside of the arc frame 22 is slidably connected to two moving plates 25. The mounting frame 21 is equipped with a rotating component 26 that can adjust the distance between the openings of the two rotating plates 23. The inside of the arc frame 22 is equipped with a buffer component 27 that can buffer the falling rice. The vibrating frame body 10 is also equipped with a cleaning component 30 that can clean the screen plate 13.
[0036] like Figure 3 As shown, the rotating component 26 includes a worm gear 261 rotatably mounted at the bottom of the mounting bracket 21, and a worm wheel 262 is fixedly connected to one end of the rotating shaft of the rotating plate 23 extending to the outside of the mounting bracket 21.
[0037] In more detail, two worm gears 262 are located at both ends of the worm 261, and the worm gears 262 mesh with the worm 261. By rotating the worm 261, the worm gears 262 will also start to rotate synchronously through meshing. The connecting member 24 is made of flexible material. When the rotating plate 23 starts to rotate, the connecting member 24, which is hinged to it, will deform due to its own material. The flexibility of the connecting member 24 can always block the gap between the rotating plate 23 and the vibrating frame body 10. The moving plate 25 is connected to one end of the rotating plate 23 through a hinge seat. When the rotating plate 23 rotates, the moving plate 25 will also move synchronously through the hinge seat.
[0038] When in use, the rice is poured into the vibrating frame body 10 through the feed inlet 12, and the vibrating frame body 10 is started to drive the screen plate 13 to start vibrating. When the rice falls onto the screen plate 13, the vibrating screen plate 13 screens the rice, so that the impurities in the rice fall into the discharge rack 11 through the screen holes on the screen plate 13, and are discharged and collected through the discharge port on the discharge rack 11.
[0039] When it is necessary to adjust the feeding range of rice, the worm gear 261 is rotated, causing the worm wheel 262 to rotate synchronously through meshing. The rotating worm wheel 262 drives the rotating shaft and the rotating plate 23 to rotate, allowing the two rotating plates 23 to move in opposite directions, thereby adjusting the size of the opening between the two rotating plates 23. At the same time, when the rotating plates 23 rotate, the hinge seat also drives the moving plate 25 to move within the arc frame 22, so that the distance between the two moving plates 25 matches the size of the opening between the rotating plates 23, thereby adjusting the feeding range of rice.
[0040] like Figures 5-6 As shown, the buffer component 27 includes two arc-shaped plates 271 fixedly installed inside the arc-shaped frame 22, and extension plates 272 are slidably connected to both ends of the arc-shaped plates 271.
[0041] In more detail, the curved plate 271 and the extension plate 272 are made of rubber. The rubber material can absorb the impact force when the rice falls, further slowing down the falling speed. The two curved plates 271 are staggered. One end of the extension plate 272 is fixedly installed on the movable plate 25. The extension plate 272 is curved.
[0042] When the moving plate 25 moves, it will also drive the extension plate 272 to move synchronously. When the rice enters the interior of the arc frame 22, the rice will fall onto the buffer component 27. The two sets of staggered buffer components 27 can absorb the impact force when the rice falls, further slowing down the falling speed. The rice passes through the two sets of buffer components 27 in sequence, so that the height of the rice falling each time gradually decreases, thereby reducing the overall falling speed and reducing the splashing of rice after discharge.
[0043] like Figure 7 As shown, the cleaning assembly 30 includes a servo motor 31 fixedly installed on the outside of the vibrating frame body 10. Two lead screws 32 are rotatably installed inside the vibrating frame body 10. A scraper 33 is threaded between the two lead screws 32. The scraper 33 can clean the screen plate 13 to prevent rice or impurities from getting stuck in the screen holes on the screen plate 13. A gear 34 is fixedly connected to one end of the lead screw 32 extending to the outside of the vibrating frame body 10. A synchronous belt 35 meshes between the two gears 34. Through the meshing transmission of the synchronous belt 35, the two gears 34 rotate synchronously.
[0044] In more detail, one end of one of the lead screws 32 is fixedly installed on the output end of the servo motor 31. The servo motor 31 can drive the corresponding lead screw 32 to rotate. The bottom end of the scraper 33 contacts the top end of the screen plate 13. After the rice is screened, the servo motor 31 is started to drive the corresponding lead screw 32 to rotate, so that the synchronous belt 35 is driven by the meshing of the gear 34, thereby making the two gears 34 rotate synchronously, thus realizing the synchronous rotation of the two lead screws 32. By controlling the forward and reverse rotation of the lead screw 32, the scraper 33 can move back and forth on the top end of the screen plate 13, thereby cleaning the screen plate 13 and preventing rice or impurities from getting stuck in the screen holes on the screen plate 13.
[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A leak-proof vibrating cleaning screen for rice processing, comprising a vibrating frame body (10), a discharge rack (11) fixedly installed at the bottom end of the vibrating frame body (10), a feed inlet (12) opened at the top end of the vibrating frame body (10), and a screen plate (13) fixedly installed inside the vibrating frame body (10), characterized in that, Also includes: The vibrating frame body (10) is equipped with a blocking component (20) to prevent rice from leaking from the feed port; The blocking assembly (20) includes a mounting bracket (21) installed at the feed inlet of the vibrating machine frame body (10) by screws. An arc-shaped frame (22) is fixedly installed on one side of the mounting bracket (21). Two rotating plates (23) are rotatably connected to the top of the mounting bracket (21). A connecting piece (24) is hinged between one end of the rotating plate (23) and the vibrating machine frame body (10). Two movable plates (25) are slidably connected inside the arc-shaped frame (22). A rotating component (26) is mounted on the mounting bracket (21) to adjust the opening distance between the two rotating plates (23). A buffer component (27) is mounted inside the arc-shaped frame (22) to buffer the rice. A cleaning component (30) is also mounted on the vibrating machine frame body (10) to clean the screen plate (13).
2. The anti-leakage vibrating cleaning screen for rice processing according to claim 1, characterized in that, The rotating component (26) includes a worm gear (261) rotatably mounted on the bottom end of the mounting bracket (21), and a worm wheel (262) is fixedly connected to one end of the rotating plate (23) extending to the outside of the mounting bracket (21).
3. The anti-leakage vibrating cleaning screen for rice processing according to claim 2, characterized in that, Two worm gears (262) are located at both ends of the worm (261) and mesh with the worm (261). The connecting piece (24) is made of flexible material. The movable plate (25) is connected to one end of the rotating plate (23) through a hinge seat.
4. The anti-leakage vibrating cleaning screen for rice processing according to claim 1, characterized in that, The buffer component (27) includes two arc-shaped plates (271) fixedly installed inside the arc-shaped frame (22), and extension plates (272) are slidably connected to both ends of the arc-shaped plates (271).
5. A leak-proof vibrating cleaning screen for rice processing according to claim 4, characterized in that, The arc plate (271) and the extension plate (272) are made of rubber. The two arc plates (271) are staggered. One end of the extension plate (272) is fixedly installed on the movable plate (25). The extension plate (272) is arc-shaped.
6. The anti-leakage vibrating cleaning screen for rice processing according to claim 1, characterized in that, The cleaning assembly (30) includes a servo motor (31) fixedly installed on the outside of the vibratory frame body (10). Two lead screws (32) are rotatably installed inside the vibratory frame body (10). A scraper (33) is threaded between the two lead screws (32). A gear (34) is fixedly connected to one end of the lead screw (32) extending to the outside of the vibratory frame body (10). A synchronous belt (35) meshes between the two gears (34).
7. A leak-proof vibrating cleaning screen for rice processing according to claim 6, characterized in that, One end of one of the lead screws (32) is fixedly installed on the output end of the servo motor (31), and the bottom end of the scraper (33) is in contact with the top end of the sieve plate (13).