Rice impurity screening device

Abstract

The utility model relates to rice screening field discloses a kind of rice impurity screening equipment, including bottom support frame for bottom support, the top of the bottom support frame overturns overturning cover plate, the top of the overturning cover plate is fixedly connected with support sleeve, the inside of the support sleeve is connected with collection frame body, the outside of the support sleeve is fixedly connected with outer exhaust ring, the right side of the outer exhaust ring is fixedly connected with suction pipe, the top right side of the bottom support frame is fixedly connected with pump, the right side of the suction pipe is fixedly connected in the input end of pump, the top of the support sleeve is fixedly connected with limit round sleeve, the inside of the support sleeve is equipped with multiple adsorption notches, the inside of the support sleeve is equipped with even lower row component.The utility model in the middle, device can collect chaff in rice, ensure that rice is screened clean, improve the quality of rice screened by device, and the screening efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of rice screening, and in particular to a rice impurity screening device. Background Technology

[0002] Rice impurity screening equipment is an automated machine used to remove foreign objects (such as stones, bran powder, broken grains, discolored grains, etc.) mixed in rice. It usually uses vibrating screen technology to separate impurities, ensuring the purity and quality of rice, and is widely used in grain processing, storage and packaging.

[0003] When rice is separated from paddy, due to the large-scale processing, the separated rice inevitably contains chaff and dust, which cannot be effectively processed by vibrating sieving alone. At the same time, some breakage occurs during rice processing, resulting in inconsistent rice quality and affecting the sieving quality of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rice impurity screening device that can collect rice husks and improve the quality of rice screened by the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A rice impurity screening device includes a bottom support frame for bottom support, a flip-top cover plate at the top of the bottom support frame, a support sleeve fixedly connected to the top of the flip-top cover plate, a collection frame internally connected to the support sleeve, an external exhaust ring fixedly connected to the outside of the support sleeve, an exhaust pipe fixedly connected to the right side of the external exhaust ring, a pump fixedly connected to the right side of the top of the bottom support frame, an input end of the pump fixedly connected to the right side of the exhaust pipe, a limiting sleeve fixedly connected to the top of the support sleeve, multiple adsorption slots on the inner side of the support sleeve, a uniform downward discharge assembly installed on the inner side of the support sleeve to increase the gap between rice grains for adsorption and collection, and a centrifugal sieving assembly installed on the inner side of the bottom support frame to sieve the rice grains.

[0007] Furthermore, the centrifugal screening assembly includes a centrifugal rotating frame that rotates inside the bottom support frame. The centrifugal rotating frame has multiple external discharge slots on its exterior. A screening frame is nested inside the centrifugal rotating frame. An external deflector ring is fixedly connected to the top of the screening frame. A rotating rod is rotatably connected inside the bottom support frame. The upper outer side of the rotating rod is fixedly connected to the bottom end of the centrifugal rotating frame. A second motor is fixedly connected to the bottom end of the bottom support frame. The drive end of the second motor is fixedly connected to the bottom end of the rotating rod.

[0008] Furthermore, the uniform discharge assembly includes a rotating discharge disc located inside the support sleeve, a toothed ring fixedly connected to the outer top of the rotating discharge disc, a second outward cone fixedly connected to the middle top of the toothed ring, and a plurality of discharge cone sleeves fixedly connected around the circumference of the rotating discharge disc.

[0009] Furthermore, a support block is fixedly connected to the inner side of the support sleeve, a rotating rod is rotatably connected inside the support block, a gear is fixedly connected to the lower outer side of the rotating rod, a first motor is fixedly connected to the top of the support block, the drive end of the first motor is fixedly connected to the top of the rotating rod, and the gear ring is meshed with the gear.

[0010] Furthermore, limit strips are fixedly connected to both sides of the collection frame, and the outer side of the limit strips is slidably connected to the inside of the support sleeve.

[0011] Furthermore, a first outward cone is fixedly connected to the inner bottom of the centrifugal rotating frame, and the outer side of the first outward cone is attached to the bottom groove of the screening frame.

[0012] Furthermore, a plurality of limiting slide bars are fixedly connected to the outer circumference of the outer ring, and the outer sides of the limiting slide bars are respectively slidably connected to the inner side of the centrifugal rotating frame.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, rice is placed inside the restricting circular sleeve, and the first motor is started to rotate the feeding disc through gear meshing with the gear ring. A pump is started to draw air outwards from the outer exhaust ring, and air is discharged outwards from the collection frame. Adsorption force is generated at the adsorption slot, thereby...

[0015] The rice husk dust is absorbed into the inside of the collection frame, and the device can collect the rice husks to ensure that the rice is cleanly sieved.

[0016] 2. In this utility model, the rotating rod is rotated by starting the second motor, thereby rotating the centrifugal rotating frame and synchronously driving the screening frame to rotate. The screening frame generates centrifugal force to discharge smaller rice grains to the outside, thereby improving the quality of rice screened by the device and increasing the screening efficiency. Attached Figure Description

[0017] Figure 1 is an overall view of a rice impurity screening device proposed in this utility model;

[0018] Figure 2 is a right-side view of a rice impurity screening device proposed in this utility model;

[0019] Figure 3 is an internal view of the bottom support frame of a rice impurity screening device proposed in this utility model;

[0020] Figure 4 is an internal view of the support sleeve of a rice impurity screening device proposed in this utility model.

[0021] Legend:

[0022] 1. Bottom support frame; 2. Flip cover plate; 3. Collection frame; 4. Restricting sleeve; 5. Support block; 6. First motor; 7. Support sleeve; 8. External exhaust ring; 9. Pump; 10. Exhaust pipe; 11. Limiting strip; 12. First outward cone; 13. External discharge slot; 14. Centrifugal rotating frame; 15. Rotating rod; 16. Gear; 17. Rotating rod; 18. Second motor; 19. Limiting slide bar; 20. Screening frame; 21. External deflector ring; 22. Second outward cone; 23. Adsorption slot; 24. Gear ring; 25. Discharge cone sleeve; 26. Rotating discharge plate. Detailed Implementation

[0023] 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.

[0024] Refer to Figures 1 and 2. Figure 4This utility model provides an embodiment of a rice impurity screening device, comprising a bottom support frame 1 for bottom support, a flip cover 2 at the top of the bottom support frame 1, a support sleeve 7 fixedly connected to the top of the flip cover 2, a collection frame 3 internally connected to the support sleeve 7, an external exhaust ring 8 fixedly connected to the outside of the support sleeve 7, an exhaust pipe 10 fixedly connected to the right side of the external exhaust ring 8, a pump 9 fixedly connected to the right side of the top of the bottom support frame 1, the right side of the exhaust pipe 10 fixedly connected to the input end of the pump 9, a limiting sleeve 4 fixedly connected to the top of the support sleeve 7, multiple adsorption slots 23 opened on the inner side of the support sleeve 7, a uniform discharge assembly installed on the inner side of the support sleeve 7 to increase the gap between rice grains for adsorption and collection, a centrifugal sieving assembly installed on the inner side of the bottom support frame 1 to sieve the rice grains, and the uniform discharge assembly including a rotating feeding disc 26 located inside the support sleeve 7. A toothed ring 24 is fixedly connected to the outer top of the top of the toothed ring 24. A second outward cone 22 is fixedly connected to the middle of the top of the toothed ring 24. Multiple feeding cone sleeves 25 are fixedly connected around the circumference of the rotating feeding disc 26. A support block 5 is fixedly connected to the inner side of the support sleeve 7. A rotating rod 15 is rotatably connected inside the support block 5. A gear 16 is fixedly connected to the lower outer side of the rotating rod 15. A first motor 6 is fixedly connected to the top of the support block 5. The drive end of the first motor 6 is fixedly connected to the top of the rotating rod 15. The toothed ring 24 is meshed with the gear 16. Limiting strips 11 are fixedly connected to both sides of the collecting frame 3. The outer side of the limiting strips 11 is slidably connected inside the support sleeve 7.

[0025] First, the rice to be processed is fed into the inner cavity of the support sleeve 7 through the limiting sleeve 4. Under the limiting action of the rotating feeding disc 26, the first motor 6 is started to drive the rotating rod 15 to drive the gear 16 to rotate. Through the meshing transmission with the gear ring 24, the rotating feeding disc 26 rotates synchronously, realizing the uniform distribution of rice. After the feeding cone sleeve 25 widens the spacing of the rice, the pump 9 forms a negative pressure adsorption system through the air extraction pipe 10 and the external exhaust ring 8. The suction generated by the adsorption slot 23 is used to draw the chaff and dust in the falling rice into the inner cavity of the support sleeve 7 for centralized collection, thereby effectively improving the purity of the rice.

[0026] Referring to Figures 1 and 3, the centrifugal sieving assembly includes a centrifugal rotor that rotates inside the bottom support frame 1.

[0027] The centrifugal rotating frame 14 has multiple external discharge slots 13 on its exterior. A screening frame 20 is nested inside the centrifugal rotating frame 14. An outer deflector ring 21 is fixedly connected to the top of the screening frame 20. A rotating rod 17 is rotatably connected inside the bottom support frame 1. The upper side of the rotating rod 17 is fixedly connected to the bottom end of the centrifugal rotating frame 14. A second motor 18 is fixedly connected to the bottom end of the bottom support frame 1. The drive end of the second motor 18 is fixedly connected to the bottom end of the rotating rod 17. A first outward cone 12 is fixedly connected to the bottom end of the centrifugal rotating frame 14. The outside of the first outward cone 12 fits against the bottom end slot of the screening frame 20. Multiple limiting slides 19 are fixedly connected around the outer circumference of the outer deflector ring 21. The outside of the limiting slides 19 are respectively slidably connected to the inner side of the centrifugal rotating frame 14.

[0028] After the rice undergoes preliminary impurity removal, it falls into the screening frame 20. The second motor 18 drives the rotating rod 17 to rotate the centrifugal rotating frame 14. Through the linkage of the limiting slide bar 19, the screening frame 20 rotates synchronously. Under the action of centrifugal force, smaller rice particles are thrown to the outer edge and discharged from the bottom, completing the grading and screening. After screening, the push rod mechanism unfolds the flip cover 2, and the outer push ring 21 pushes the screening frame 20 upward for easy and quick material removal. This design not only improves the grading accuracy and screening efficiency of rice, but also optimizes the ease of operation and ensures the quality stability of the produced rice.

[0029] Working principle: Rice to be screened is placed inside the support sleeve 7 through the limiting sleeve 4. Once inside the support sleeve 7 and blocked by the rotating feed plate 26, the first motor 6 is started, rotating the rotating rod 15, which in turn rotates the gear 16. The gear 16 meshes with the gear ring 24, causing the rotating feed plate 26 to rotate. As the rotating feed plate 26 rotates, the rice is evenly fed into the feed cone sleeve 25, and discharged evenly to the lower side, increasing the spacing between the falling rice grains. The suction pump 9 is started, expelling air from the suction pipe 10 and the external exhaust ring 8. The external exhaust ring 8 expels air from inside the support sleeve 7 and generates suction on the inside of the support sleeve 7 through the adsorption slot 23, drawing the rice husks and dust into the support sleeve 7 for collection. The falling rice then falls into the screening frame 20.

[0030] At this time, the second motor 18 is started to rotate the rotating rod 17, thereby driving the centrifugal rotating frame 14 to rotate. The inner side of the centrifugal rotating frame 14 is connected with the limiting slide bar 19, thereby driving the screening frame 20 to rotate as well. Centrifugal force is generated inside the screening frame 20, thereby discharging smaller rice particles to the outside and downward. After the rice screening is completed, the flip cover 2 is opened by the push rod, and then the outer ring 21 is pushed upward to remove the screening frame 20, thereby improving the quality of the screened rice.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rice impurity screening device, characterized in that, The device includes a bottom support frame (1) for bottom support, a flip cover plate (2) at the top of the bottom support frame (1), a support sleeve (7) fixedly connected to the top of the flip cover plate (2), a collection frame (3) connected inside the support sleeve (7), an external exhaust ring (8) fixedly connected to the outside of the support sleeve (7), an exhaust pipe (10) fixedly connected to the right side of the external exhaust ring (8), a pump (9) fixedly connected to the right side of the top of the bottom support frame (1), the right side of the exhaust pipe (10) fixedly connected to the input end of the pump (9), a limiting round sleeve (4) fixedly connected to the top of the support sleeve (7), multiple adsorption slots (23) opened on the inside of the support sleeve (7), a uniform downward discharge component installed on the inside of the support sleeve (7) to increase the gap between rice grains for adsorption and collection, and a centrifugal sieving component installed on the inside of the bottom support frame (1) to sieve the rice grains.

2. The rice impurity screening device according to claim 1, characterized in that: The centrifugal screening assembly includes a centrifugal rotating frame (14) that rotates inside the bottom support frame (1). The centrifugal rotating frame (14) has multiple external discharge slots (13) on its outside. A screening frame (20) is nested inside the centrifugal rotating frame (14). An external ring (21) is fixedly connected to the top of the screening frame (20). A rotating rod (17) is rotatably connected inside the bottom support frame (1). The upper side of the rotating rod (17) is fixedly connected to the bottom end of the centrifugal rotating frame (14). A second motor (18) is fixedly connected to the bottom end of the bottom support frame (1). The drive end of the second motor (18) is fixedly connected to the bottom end of the rotating rod (17).

3. The rice impurity screening device according to claim 1, characterized in that: The uniform discharge assembly includes a rotating discharge disc (26) located inside the support sleeve (7). A toothed ring (24) is fixedly connected to the outer top of the rotating discharge disc (26). A second outward cone (22) is fixedly connected to the middle top of the toothed ring (24). Multiple discharge cone sleeves (25) are fixedly connected around the circumference of the rotating discharge disc (26).

4. The rice impurity screening device according to claim 3, characterized in that: The inner side of the support sleeve (7) is fixedly connected to a support block (5), the inside of the support block (5) is rotatably connected to a rotating rod (15), the lower outer side of the rotating rod (15) is fixedly connected to a gear (16), the top of the support block (5) is fixedly connected to a first motor (6), the driving end of the first motor (6) is fixedly connected to the top of the rotating rod (15), and the gear ring (24) is meshed with the gear (16).

5. The rice impurity screening device according to claim 1, characterized in that: Both sides of the collection frame (3) are fixedly connected to limit strips (11), and the outside of the limit strips (11) is slidably connected to the inside of the support sleeve (7).

6. The rice impurity screening device according to claim 2, characterized in that: The centrifugal rotating frame (14) is fixedly connected to the bottom of the inner end of the first outward cone (12), and the outside of the first outward cone (12) is attached to the bottom groove of the screening frame (20).

7. The rice impurity screening device according to claim 2, characterized in that: The outer ring (21) is fixedly connected with a plurality of limiting slides (19) around its outer circumference, and the outer sides of the limiting slides (19) are respectively slidably connected to the inner side of the centrifugal rotating frame (14).

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