Blast channel screening mechanism for rice impurity removal
By designing a blower channel screening mechanism for removing impurities from rice, the system utilizes wind power to remove lightweight impurities and combines it with a shaking component and a separating plate to achieve efficient and automated screening of rice. This solves the problems of low impurity removal efficiency and low precision in existing equipment and reduces production costs.
Patent Information
- Application Number
- CN202423298511.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing rice impurity removal equipment suffers from low impurity removal efficiency, low screening accuracy, and low automation, which affects rice quality and increases production costs.
Design a blower-driven screening mechanism for removing impurities from rice. The mechanism uses a blower to generate airflow to remove lightweight impurities. Through the cooperation of a shaking component and a distribution plate, it achieves uniform distribution and rapid screening of rice. Combined with a conveyor belt, it automatically sorts and collects rice and impurities.
It improves the purity of rice, enhances the efficiency of impurity removal, reduces manual intervention, realizes a fully automated impurity removal process, and reduces labor intensity and production costs.
Smart Images
Figure CN223888472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a blower channel screening mechanism for removing impurities from rice. Background Technology
[0002] Rice is one of the world's most important food crops, and its yield and quality directly affect global food security. After harvesting, rice is usually mixed with a large amount of light impurities, such as weeds, rice husks, and other small debris. These impurities not only affect the quality of the rice but also increase the cost of subsequent processing and storage. Therefore, the removal of impurities from rice is an indispensable part of agricultural production.
[0003] Currently, methods for removing impurities from rice mainly include manual screening, mechanical screening, and air separation. While manual screening is simple and easy to perform, it is inefficient, labor-intensive, and difficult to meet the needs of large-scale production. Mechanical screening equipment can improve impurity removal efficiency, but when removing light impurities, the screening precision is not high, and impurities are easily left behind, affecting the quality of the rice. Furthermore, existing mechanical screening equipment is mostly semi-automatic or manually operated, requiring significant manual intervention, increasing labor intensity and production costs. Air separation equipment removes light impurities through wind force, which has certain advantages, but existing equipment has shortcomings in wind control and material distribution, resulting in less than ideal screening effects.
[0004] Therefore, it is necessary to design a blower-channel screening mechanism for removing impurities from rice to solve the problems mentioned above. Utility Model Content
[0005] In order to overcome the shortcomings of existing technologies, such as low impurity removal efficiency, low screening accuracy, and low degree of automation, the technical problem to be solved is to provide a blower channel screening mechanism for removing impurities from rice.
[0006] The technical solution of this utility model is as follows: a blower channel screening mechanism for removing impurities from rice, including a support frame, a feeding frame, a discharge hood, a shaking frame, a moving part, an impurity removal component, and a shaking component. The feeding frame is connected to the upper side of the support frame. The feeding frame is funnel-shaped. The bottom of the feeding frame is connected to and communicates with the discharge hood. The bottom of the discharge hood is open, and its right extension is also open. Moving parts are symmetrically and slidably connected to the lower side of the feeding frame. The shaking frame is connected between the bottoms of the two moving parts. The shaking frame is located below the bottom opening of the discharge hood. The shaking frame is in an inclined state with the front lower and the back higher. The impurity removal component is provided on the support frame, and the shaking component is provided on the feeding frame.
[0007] As a preferred technical solution of this utility model, the impurity removal component includes a discharge plate and a blower. The blower is installed on the upper left side of the support frame. The air outlet of the blower is connected to and communicates with the left end of the discharge hood. The right side of the support frame is connected to the obliquely arranged discharge plate. The right end of the discharge hood is aligned with the discharge plate.
[0008] As a preferred technical solution of this utility model, the shaking component includes a pulley set, a rotating shaft, a transmission component, a connecting frame, a connecting shaft, and a connecting spring. The rotating shaft is rotatably connected to the lower side of the feeding frame, and the front end of the rotating shaft extends through the feeding frame. The rotating shaft inside the blower extends through the outer shell to the front side. A pulley set is connected between the rotating shaft and the front end of the blower's rotating shaft. A transmission component is connected to the front side of the rotating shaft. A sliding groove is provided on the upper side of the moving component on the front side, and the sliding groove is slidably connected to the transmission component. Connecting frames are symmetrically connected to both sides of the lower side of the feeding frame. A connecting shaft is slidably connected to the lower end of each connecting frame. A connecting spring is connected between the connecting shaft and the connecting frame. The four corners of the shaking frame are suspended on the connecting shaft.
[0009] As a preferred technical solution of this utility model, it also includes a material distribution wheel, which is connected to the rotating shaft and is located inside the material feeding frame.
[0010] As a preferred technical solution of this utility model, it also includes a conveyor belt and a hopper. Conveyor belts are installed on both the front and rear sides of the lower middle part of the support frame. The rear conveyor belt is located below the shaking frame, and the front conveyor belt is aligned with the lower end of the shaking frame. The hoppers are connected to the outer shells of the two conveyor belts on the sides that are far apart from each other.
[0011] As a preferred technical solution of this utility model, it also includes a connecting rod, a material distribution plate, a rack plate and a gear. The connecting rod is connected to the lower side of the front moving part. The material distribution plate is rotatably connected to the lower port of the discharge hood. The gear is connected to the front end of the material distribution plate. The rack plate is connected to the rear side of the connecting rod. The rack plate has toothed blocks on the left side and two toothed blocks spaced apart on the right side. The toothed blocks on both sides of the rack plate are close to the two sides of the gear, and the two mesh with each other after contact.
[0012] Compared with the prior art, the present invention has the following advantages: 1. By setting up a blower, air is blown towards the discharge hood during the rice feeding process. Under the action of the wind, light impurities such as weeds and rice husks in the rice can be effectively removed, thereby improving the purity of the rice.
[0013] 2. The power of the blower is transmitted to the rotating shaft. Through the cooperation of the transmission and moving parts, the shaking frame can be driven to shake up and down. At the same time, the material distribution plate swings left and right to ensure that the rice is evenly distributed on the shaking frame. Together, they promote the rapid screening of rice and improve work efficiency.
[0014] 3. The conveyor belts on both sides are used to transport the screened rice and the screened impurities. The entire impurity removal process requires almost no manual intervention. From the start of the blower to the classification and collection of materials, everything can be completed automatically, saving labor costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.
[0017] Figure 3 This is a three-dimensional structural diagram of the rotating shaft, distributing wheel, and shaking frame of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the connecting frame, connecting rod, and connecting spring of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the connector, connecting rod, and material distribution plate of this utility model.
[0020] Figure 6 This is a three-dimensional structural diagram of the material distribution plate, rack plate, and gears of this utility model.
[0021] The markings in the diagram are as follows: 1-Support frame, 101-Discharge plate, 2-Discharge frame, 21-Discharge hood, 3-Blower, 4-Pulley assembly, 5-Rotating shaft, 51-Transmission component, 6-Distribution wheel, 7-Conveyor belt, 8-Discharge hopper, 9-Connecting frame, 10-Connecting shaft, 11-Connecting spring, 12-Shaking frame, 13-Moving component, 14-Connecting rod, 15-Distribution plate, 16-Rack plate, 17-Gear. Detailed Implementation
[0022] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.
[0023] Example: A blower-channel screening mechanism for removing impurities from rice, such as... Figures 1-4As shown, the device includes a support frame 1, a feeding frame 2, a discharge hood 21, a shaking frame 12, a moving part 13, a decontamination component, and a shaking component. The feeding frame 2 is connected to the upper side of the support frame 1. The feeding frame 2 is funnel-shaped. The bottom of the feeding frame 2 is connected to and communicates with the discharge hood 21. The bottom of the discharge hood 21 is open, and its right extension is also open. The moving part 13 is symmetrically and slidably connected to the lower side of the feeding frame 2. The shaking frame 12 for screening impurities in rice is connected between the bottoms of the two moving parts 13. The shaking frame 12 is located below the bottom opening of the discharge hood 21. The length of the front moving part 13 is longer than that of the rear moving part 13. Due to the influence of the moving part 13, the shaking frame 12 is tilted with the front lower and the back higher. The support frame 1 is equipped with a decontamination component, and the feeding frame 2 is equipped with a shaking component.
[0024] like Figure 1 As shown, the impurity removal component includes a discharge plate 101 and a blower 3. The blower 3 is installed on the upper left side of the support frame 1. The air outlet of the blower 3 is connected to and communicates with the left end of the discharge hood 21. The discharge plate 101 is connected to the right side of the support frame 1 at an angle. The discharge plate 101 is in a state where the left side is higher than the right side, and the right end of the discharge hood 21 is aligned with the discharge plate 101. Lightweight impurities removed by the air force of the blower 3 will fall onto the discharge plate 101 and be discharged along the discharge plate 101.
[0025] like Figures 2-4 As shown, the shaking assembly includes a pulley set 4, a rotating shaft 5, a transmission component 51, a connecting frame 9, a connecting shaft 10, and a connecting spring 11. The rotating shaft 5 is rotatably connected to the lower side of the feeding frame 2, and the front end of the rotating shaft 5 extends through the feeding frame 2. The rotating shaft inside the blower 3 extends through the outer casing to the front side. The pulley set 4 is connected between the rotating shaft 5 and the front end of the rotating shaft of the blower 3. The transmission component 51 is welded to the front side of the rotating shaft 5. A sliding groove is opened on the upper side of the moving part 13 on the front side, and the sliding groove is slidably connected to the transmission component 51. The connecting frames 9 are symmetrically welded to the front and rear sides of the lower side of the feeding frame 2. The lower end of the connecting frame 9 is slidably connected to the connecting shaft 10. The connecting spring 11 is connected between the connecting shaft 10 and the connecting frame 9. The four corners of the shaking frame 12 are suspended on the connecting shaft 10, so that the shaking frame 12 shakes up and down by the elastic force provided by the connecting spring 11.
[0026] like Figures 2-5 As shown, it also includes a material distribution wheel 6. The material distribution wheel 6 is connected to the rotating shaft 5. The material distribution wheel 6 is located inside the feeding frame 2. The material distribution wheel 6 is cylindrical and has multiple slots spaced along its circumference. The rotation of the material distribution wheel 6 can intermittently push rice through the slots to realize intermittent feeding of rice.
[0027] like Figures 1-3As shown, it also includes a conveyor belt 7 and a hopper 8. Conveyor belts 7 are installed on both the front and rear sides of the lower middle part of the support frame 1. The rear conveyor belt 7 is located below the shaking frame 12. The debris and dust screened by the shaking frame 12 will fall onto the rear conveyor belt 7. The front conveyor belt 7 is aligned with the lower end of the shaking frame 12. The rice that slides down the shaking frame 12 will fall onto the front conveyor belt 7. The outer shells of the two conveyor belts 7 are welded with hoppers 8 on the sides that are far apart from each other to guide the rice or debris.
[0028] like Figures 5-6 As shown, it also includes a connecting rod 14, a material distribution plate 15, a rack plate 16, and a gear 17. The connecting rod 14 is welded to the lower side of the front moving part 13. The material distribution plate 15 is rotatably connected to the lower end of the discharge hood 21. The gear 17 is connected to the front end of the material distribution plate 15. The rack plate 16 is connected to the rear side of the connecting rod 14. The rack plate 16 has toothed blocks on the left side and two toothed blocks at intervals on the right side. The toothed blocks on both sides of the rack plate 16 are close to the two sides of the gear 17. After contact, the two mesh with each other to drive the rack plate 16 to swing left and right, so that the falling rice grains are evenly distributed on the shaking frame 12.
[0029] During the impurity removal and screening of rice, the rice is first added to the feeding frame 2, and then the blower 3 is started. When the blower 3 is running, the rotation of its shaft transmits power to the rotating shaft 5 through the pulley group 4. The rotating shaft 5 drives the distributing wheel 6 to rotate, and the distributing wheel 6 can intermittently push the rice in the feeding frame 2, causing it to fall intermittently to the opening at the bottom of the discharge hood 21, and then into the shaking frame 12. At this time, the airflow generated by the operation of the blower 3 will pass through the discharge hood 21. With the help of the wind force, light impurities mixed in with the rice, such as weeds and rice husks, will be blown to the right outlet of the discharge hood 21, and finally fall onto the discharge plate 101 and slide down for collection, thus achieving the initial purification of the rice. At the same time, the rotation of the rotating shaft 5 also drives the movement of the transmission component 51. The transmission component 51 is connected to the front moving component 13 through a sliding groove, which enables the moving component 13 to move up and down reciprocally. This movement is further transmitted to the rear moving component 13 and the shaking frame 12, making... The shaking frame 12 also moves up and down. During this process, the connecting shaft 10 moves up and down with the shaking frame 12. Under the restoring force provided by the connecting spring 11, the shaking frame 12 achieves the effect of shaking up and down. The up and down movement of the moving part 13 also drives the rack plate 16 to move up and down through the connecting rod 14. The toothed blocks on the rack plate 16 intermittently mesh with the gear 17, causing the gear 17 to rotate alternately in both directions, which in turn drives the distribution plate 15 to swing left and right. When the rice falls from the discharge hood 21, it is guided by the distribution plate 15 and can be more evenly distributed in the shaking frame 12. The shaking of the shaking frame 12 not only accelerates the rice screening process, but also causes the fine impurities and dust in the rice to fall down onto the rear conveyor belt 7. The purified rice slides forward along the inclined surface of the shaking frame 12 onto the front conveyor belt 7. The rice and impurities are output by the front and rear conveyor belts 7 respectively, and finally discharged through the discharge hopper 8 for easy classification and collection. Once the rice impurities are removed, turn off blower 3 to finish the job.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may 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 blower-channel screening mechanism for removing impurities from rice, characterized in that, It includes a support frame (1), a feeding frame (2), a discharge hood (21), a shaking frame (12), a moving part (13), a cleaning component and a shaking component. The upper side of the support frame (1) is connected to the feeding frame (2), which is funnel-shaped. The bottom of the feeding frame (2) is connected to and communicates with the discharge hood (21), which is open at the bottom and also open at the right end. The lower side of the feeding frame (2) is symmetrically connected to the moving part (13), and the bottom of the two moving parts (13) is connected to the shaking frame (12). The shaking frame (12) is located below the bottom opening of the discharge hood (21) and is inclined with the front lower and the back higher. The support frame (1) is equipped with a cleaning component, and the feeding frame (2) is equipped with a shaking component.
2. The air-blowing screening mechanism for removing impurities from rice as described in claim 1, characterized in that, The impurity removal component includes a discharge plate (101) and a blower (3). The blower (3) is installed on the upper left side of the support frame (1). The air outlet of the blower (3) is connected to and communicates with the left end of the discharge hood (21). The right side of the support frame (1) is connected to the obliquely arranged discharge plate (101). The right end of the discharge hood (21) is aligned with the discharge plate (101).
3. The air-blowing channel screening mechanism for removing impurities from rice according to claim 2, characterized in that, The shaking assembly includes a pulley group (4), a rotating shaft (5), a transmission component (51), a connecting frame (9), a connecting shaft (10), and a connecting spring (11). The rotating shaft (5) is rotatably connected to the lower side of the feeding frame (2). The front end of the rotating shaft (5) passes through the feeding frame (2). The rotating shaft inside the blower (3) passes through the outer shell to the front. The pulley group (4) is connected between the rotating shaft (5) and the front end of the rotating shaft of the blower (3). The transmission component (51) is connected to the front side of the rotating shaft (5). A sliding groove is provided on the upper side of the moving component (13) on the front side. The sliding groove is slidably connected to the transmission component (51). The connecting frames (9) are symmetrically connected to both sides of the lower side of the feeding frame (2). The connecting shaft (10) is slidably connected to the lower end of the connecting frame (9). A connecting spring (11) is connected between the connecting shaft (10) and the connecting frame (9). The four corners of the shaking frame (12) are suspended on the connecting shaft (10).
4. The air-blowing channel screening mechanism for removing impurities from rice according to claim 3, characterized in that, It also includes a material distribution wheel (6), which is connected to the rotating shaft (5) and is located inside the feeding frame (2).
5. The air-blowing channel screening mechanism for removing impurities from rice according to claim 4, characterized in that, It also includes a conveyor belt (7) and a hopper (8). The support frame (1) is equipped with conveyor belts (7) on both the front and rear sides in the middle of the lower part. The rear conveyor belt (7) is located below the shaking frame (12), and the front conveyor belt (7) is aligned with the lower end of the shaking frame (12). The two conveyor belts (7) are connected to the hopper (8) on the side of their outer shells that are far apart from each other.
6. The air-blowing channel screening mechanism for removing impurities from rice according to claim 5, characterized in that, It also includes a connecting rod (14), a material distribution plate (15), a rack plate (16) and a gear (17). The connecting rod (14) is connected to the lower side of the moving part (13) on the front side. The material distribution plate (15) is rotatably connected to the lower port of the discharge hood (21). The gear (17) is connected to the front end of the material distribution plate (15). The rack plate (16) is connected to the rear side of the connecting rod (14). The rack plate (16) has a tooth block on the left side and two tooth blocks at intervals on the right side. The tooth blocks on both sides of the rack plate (16) are close to the two sides of the gear (17) respectively. After contact, the two mesh with each other.