A rice screening device with dust removal function for rice production

CN224599803UActive Publication Date: 2026-08-07HEILONGJIANG CUNGU CUNJIN AGRICULTURAL DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG CUNGU CUNJIN AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-06-26
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]为了解决筛分效率较低的问题;本实用新型的目的在于提供一种大米生产用具有除尘功能的大米筛选装置

Benefits of technology

[0010]1、本实用新型中通过设置筛分板、转动杆、凸轮与集尘板等结构相互配合,设置两个筛分板,并由凸轮驱动其进行抖动筛选,能够实现多级筛分,提高筛分的效率和精度,同时搭配除尘器,有效减弱灰尘飞扬,改善工作环境,保证大米的纯净度与品质;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rice screening device with dust removal function for rice production relates to rice production technical field, and the utility model discloses a box is installed with screening subassembly in the staggered, and the box outside is installed with the discharge gate, and the screening subassembly includes the screening board, and the screening board rotatory mounting is in the box inner wall, and the rotatory establishment of two rotating rods is in the box, and the rotating rod outside is fixed with the cam and is pasted with dust catcher in the screening board bottom, and the box both sides are equipped with the residue discharge port, and the box both sides all are installed with the collection box, and the screening board top is installed with the control material subassembly, the utility model discloses in the cooperation of setting up the screening board, rotating rod, cam and dust collection board etc. structure each other, and sets up two screening boards, and by the cam drive it to carry out the dithering screening, can realize multistage screening, improves the efficiency and the precision of screening, and the dust catcher is matched simultaneously, effectively weakens the dust flying, improves the working environment, guarantees the purity and the quality of rice.
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Description

Technical Field

[0001] This utility model relates to the field of rice production technology, specifically to a rice screening device with dust removal function for rice production. Background Technology

[0002] Rice production refers to the process of transforming paddy rice into edible rice through planting, harvesting, processing, and milling. This process involves selecting suitable planting sites, proper farming management, fertilization, irrigation, and ensuring maturity and quality control at harvest to ultimately produce high-quality rice that meets market demand. Rice production is not only a crucial link in food supply but also the foundation of agricultural economies in many countries. Dust removal and screening are essential in rice production. Dust removal not only removes dust and impurities from the paddy rice, improving the production environment, but also ensures the cleanliness and hygiene of the rice. Screening effectively removes broken rice, impurities, and substandard grains, ensuring the consistency of rice quality and appearance. These two processes help improve rice quality and meet market demand for clean, high-quality rice.

[0003] However, existing devices may have low efficiency in the screening process, making it difficult to completely separate impurities, resulting in slow screening speed and the dispersion of a large amount of dust, which affects the operating environment and causes workers to inhale large amounts of dust, posing health risks. In response to the above problems, the inventors have proposed a rice screening device with dust removal function for rice production to solve the above problems. Utility Model Content

[0004] In order to solve the problem of low screening efficiency, the purpose of this utility model is to provide a rice screening device with dust removal function for rice production.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rice screening device with dust removal function for rice production, comprising a box body, screening components are staggeredly installed inside the box body, a discharge port is installed on the outside of the box body, the screening components include a screening plate, the screening plate is rotatably installed on the inner wall of the box body, two rotating rods are rotatably provided inside the box body, a cam is fixedly provided on the outside of the rotating rod, the outside of the cam is in contact with the bottom end of the screening plate, a dust collection plate is staggeredly fixed at the bottom end of the box body, a vacuum cleaner is installed on both sides of the box body, a slag discharge port is opened on both sides of the box body, a collection box is installed on both sides of the box body, the two collection boxes are respectively located on the sides of the two slag discharge ports, and a material control component is installed on the top of the screening plate.

[0006] Preferably, the material control assembly includes a support frame, which is installed on the top of the screening plate. A threaded rod is threadedly inserted into the support frame, and a fixing plate is rotatably installed at the bottom end of the threaded rod. A horizontal plate is fixedly installed at the bottom end of the fixing plate, and a turntable is fixedly installed at the top end of the threaded rod.

[0007] Preferably, a feed box is installed at the top of the box, two guide plates are fixedly provided on the inner wall of the box, the two guide plates are located above two screening plates, and a cleaning plate is detachably installed at the bottom of the collection box.

[0008] Preferably, the two rotating rods are connected to the synchronous belt via a synchronous pulley, a motor is installed on the outside of the housing, the end of the motor output shaft is inserted through the housing and fixedly connected to the rotating rod, and an auxiliary rod is fixedly provided at the top of the fixed plate, the auxiliary rod being inserted through the support frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, by setting up a sieve plate, a rotating rod, a cam and a dust collection plate and other structures to cooperate with each other, two sieve plates are set up and driven by the cam to perform shaking screening, which can realize multi-stage screening, improve screening efficiency and accuracy, and at the same time, with the dust collector, effectively reduce dust flying, improve the working environment, and ensure the purity and quality of rice.

[0011] 2. In this utility model, by setting up a support frame, threaded rod, fixing plate and horizontal plate and other structures to cooperate with each other, the speed of rice conveying on the screening plate can be evenly controlled, thereby improving the dust removal effect and avoiding the problem of inefficient dust removal caused by uneven rice on the screening plate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a side view of the overall structure of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the box body and its connecting structure of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A

[0017] Figure 5 This is a front view of the cross-section of the box body and its connecting structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the material control component of this utility model.

[0019] In the diagram: 1. Box body; 11. Discharge port; 12. Feed box; 13. Guide plate; 2. Screening assembly; 21. Screening plate; 22. Rotating rod; 23. Cam; 24. Vacuum cleaner; 25. Dust collection plate; 26. Slag discharge port; 27. Collection box; 28. Cleaning plate; 29. ​​Motor; 3. Material control assembly; 31. Support frame; 32. Threaded rod; 33. Fixing plate; 34. Horizontal plate; 35. Turntable; 36. Auxiliary rod. Detailed Implementation

[0020] 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.

[0021] like Figure 1-6 As shown, this utility model provides a rice screening device with dust removal function for rice production, including a box 1 for processing rice. Screening components 2 are installed alternately inside the box 1 to remove dust and impurities from the rice. A discharge port 11 is installed on the outside of the box 1 for discharging the processed rice. The screening components 2 include two screening plates 21, with the upper screening plate 21 having larger holes. The screening plates 21 are rotatably mounted on the inner wall of the box 1. Two rotating rods 2 are rotatably installed inside the box 1. 2. A cam 23 is fixedly provided on the outer side of the rotating rod 22. The rotation of the cam 23 drives the screening plate 21 to swing back and forth. The outer side of the cam 23 is in contact with the bottom end of the screening plate 21. Dust collection plates 25 are fixedly and alternately provided on the bottom end of the box 1. A vacuum cleaner 24 is installed on both sides of the box 1. The vacuum cleaner 24 can adsorb the dust suspended in the box 1. A slag discharge port 26 is opened on both sides of the box 1. A collection box 27 is installed on both sides of the box 1. The two collection boxes 27 are located on the sides of the two slag discharge ports 26 respectively. Impurities can be collected through the collection boxes 27. A material control component 3 is installed on the top of the screening plate 21.

[0022] The material control assembly 3 includes a support frame 31, which is installed on the top of the screening plate 21. A threaded rod 32 is threadedly inserted into the support frame 31. A fixing plate 33 is rotatably installed at the bottom of the threaded rod 32. A horizontal plate 34 is fixed at the bottom of the fixing plate 33. A turntable 35 is fixed at the top of the threaded rod 32. A maintenance plate is installed on the side of the box 1. The inside of the box 1 can be inspected by disassembling the maintenance plate, and the turntable 35 can be rotated easily.

[0023] By adopting the above technical solution, the speed at which rice is conveyed on the sieve plate 21 can be uniformly controlled, thereby improving the dust removal effect and avoiding the problem of inefficient dust removal caused by uneven distribution of rice on the sieve plate 21.

[0024] A feed box 12 is installed at the top of the box 1.

[0025] By adopting the above technical solution, rice is fed into the box 1 through the feeding box 12.

[0026] Two guide plates 13 are fixedly installed on the inner wall of the box 1, and the two guide plates 13 are located above the two screening plates 21.

[0027] By adopting the above technical solution, the guide plate 13 can guide the rice and prevent impurities from entering the connection between the screening plate 21 and the box 1.

[0028] A cleaning plate 28 is detachably installed at the bottom of the collection box 27.

[0029] By adopting the above technical solution, the impurities in the collection box 27 can be cleaned by the cleaning plate 28.

[0030] The two rotating rods 22 are connected to the synchronous belt drive via synchronous pulleys.

[0031] By adopting the above technical solution, one of the rotating rods 22 can rotate, causing the two rotating rods 22 to rotate synchronously.

[0032] A motor 29 is installed on the outside of the housing 1. The end of the output shaft of the motor 29 is inserted through the housing 1 and fixedly connected to the rotating rod 22.

[0033] By adopting the above technical solution, the end of the output shaft of the motor 29 rotates, causing the rotating rod 22 to rotate.

[0034] An auxiliary rod 36 is fixedly provided at the top of the fixed plate 33, and the auxiliary rod 36 is inserted through the support frame 31.

[0035] By adopting the above technical solution, the auxiliary rod 36 assists the fixing plate 33 in moving up and down.

[0036] Working principle: First, the rice to be screened is evenly fed into the box 1 through the feeding box 12. Simultaneously, dust collection bags are fitted onto the output ends of both vacuum cleaners 24 to isolate dust. Meanwhile, the turntable 35 rotates, causing the threaded rod 32 to rotate. The rotation of the threaded rod 32 causes the fixed plate 33 to move downwards with the assistance of the auxiliary rod 36. The downward movement of the fixed plate 33 causes the horizontal plate 34 to move downwards. The distance between the horizontal plate 34 and the screening plate 21 controls the transmission rate of the rice on the screening plate 21, ensuring even transmission and improving the screening effect. At this point, the motor 29 is started, commencing operation. The output shaft of the motor 29... The rotation of the part drives one of the rotating rods 22 to rotate. The rotation of one rotating rod 22, through the synchronous pulley and synchronous belt, causes both rotating rods 22 to rotate. The rotation of the rotating rod 22 drives the cam 23 to rotate. The rotation of the cam 23 causes the sieving plate 21 to swing back and forth inside the box 1, thereby sieving the rice on the sieving plate 21. At the same time, the vacuum cleaner 24 is activated, so that the vacuum cleaner 24 can absorb the dust and impurities on the outside of the rice through the holes on the sieving plate 21. Large impurities will fall above the dust collection plate 25, while fine dust will be absorbed by the vacuum cleaner 24. Through the sieving plate 21 twice, the sieving effect can be improved.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rice screening device with dust removal function for rice production, comprising a housing (1), characterized in that: Screening components (2) are installed alternately inside the box (1). A discharge port (11) is installed on the outside of the box (1). The screening components (2) include a screening plate (21). The screening plate (21) is rotatably installed on the inner wall of the box (1). Two rotating rods (22) are rotatably provided inside the box (1). A cam (23) is fixedly provided on the outside of the rotating rod (22). The outside of the cam (23) is attached to the bottom end of the screening plate (21). Dust collection plates (25) are fixedly and alternately provided at the bottom end of the box (1). A vacuum cleaner (24) is installed on both sides of the box (1). A slag discharge port (26) is opened on both sides of the box (1). A collection box (27) is installed on both sides of the box (1). The two collection boxes (27) are located on the sides of the two slag discharge ports (26). A material control component (3) is installed on the top of the screening plate (21).

2. The rice screening device with dust removal function for rice production as described in claim 1, characterized in that, The material control assembly (3) includes a support frame (31), which is installed on the top of the screening plate (21). A threaded rod (32) is threadedly inserted into the support frame (31). A fixing plate (33) is rotatably installed at the bottom of the threaded rod (32). A horizontal plate (34) is fixed at the bottom of the fixing plate (33). A turntable (35) is fixed at the top of the threaded rod (32).

3. A rice screening device with dust removal function for rice production as described in claim 1, characterized in that, The top of the box (1) is equipped with a feed box (12).

4. A rice screening device with dust removal function for rice production as described in claim 1, characterized in that, The inner wall of the box (1) is fixed with two guide plates (13), which are located above the two screening plates (21).

5. A rice screening device with dust removal function for rice production as described in claim 1, characterized in that, A cleaning plate (28) is detachably installed at the bottom of the collection box (27).

6. A rice screening device with dust removal function for rice production as described in claim 1, characterized in that, The two rotating rods (22) are connected to the synchronous belt drive via synchronous pulleys.

7. A rice screening device with dust removal function for rice production as described in claim 1, characterized in that, A motor (29) is installed on the outside of the housing (1). The end of the output shaft of the motor (29) is inserted through the housing (1) and fixedly connected to the rotating rod (22).

8. A rice screening device with dust removal function for rice production as described in claim 2, characterized in that, An auxiliary rod (36) is fixedly provided at the top of the fixed plate (33), and the auxiliary rod (36) is inserted through the support frame (31).