A rice impurity screening device

Abstract

The utility model relates to rice impurity screening technical field especially a rice impurity screening device, including bottom plate and frame, bottom plate outer wall upper end is connected with the fixed connection of frame, the left side of frame inside is equipped with dispersion structure, the middle part of frame inside is equipped with rice impurity screening structure, the upper end fixed connection of frame left side has the feed port. This rice impurity screening device, through the cooperation of dispersion structure and rice impurity screening structure, through the stirring rod to the rice and impurity are stirred, through the first motor ultimately drives the first cylinder rotation and turns over the rice and impurity and disperses, in utilizing the second motor ultimately drives the stirring rod rotation and stirs the rice and impurity, makes the rice and impurity through second filter screen and first filter screen and carries out the screening, makes the rice and different size impurities flow to the corresponding material box inside respectively, more convenient to the impurity in the rice is cleaned and is collected, effectively promotes practicality and convenience.

Description

Technical Field

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

[0002] Rice is a staple food for people in most parts of China. It is made from paddy through processes such as cleaning, hulling, milling, and finishing. Paddy often contains various impurities such as sand, rice straw, and weed seeds. During the rice processing, when the paddy is milled into rice, a lot of broken rice is produced, and rice also contains a lot of husks. If the impurities and broken rice are not removed, the quality of the rice will be reduced. Therefore, it is necessary to screen the rice during the processing.

[0003] For example, a rice impurity screening device with announcement number "CN222642539U" uses an arc-shaped pusher scraper to push impurities along the tangent of the outer circle of the first screen plate to the discharge pipe for discharge. The screen box then removes rice husks and sand larger than rice grains, offering high efficiency and good screening effect. However, in this device, the upper part of the screen box is blocked by a guide plate, requiring manual cleaning of the rice husks and sand inside the screen box from the discharge port, resulting in poor practicality and convenience. Utility Model Content

[0004] The purpose of this invention is to solve the problem of rice impurity screening device by combining a dispersion structure and a rice impurity screening structure. The first motor drives the first cylinder to rotate and disperse the rice and impurities, and the second motor drives the stirring rod to stir the rice and impurities. The rice and impurities are then screened through the second and first filters, so that the rice and impurities of different sizes flow into the corresponding material bins. This makes it easier to clean and collect impurities from the rice, effectively improving practicality and convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a rice impurity screening device, including a base plate and a frame. The upper end of the outer wall of the base plate is fixedly connected to the frame. A dispersion structure is provided on the left side inside the frame. A rice impurity screening structure is provided in the middle of the frame. A feed inlet is fixedly connected to the upper left side of the frame. A shell is fixedly connected to the right side of the outer wall of the frame. Multiple material boxes are placed on the upper end of the outer wall of the base plate.

[0007] Preferably, the dispersion structure includes a first motor, a first gear is fixedly connected to the end of the output shaft of the first motor, the outer wall of the first gear meshes with a second gear, a first cylinder is fixedly connected to the inner wall of the second gear, the right end of the outer wall of the first cylinder is rotatably connected to the frame through a sealed bearing, and the left end of the inner wall of the first cylinder is rotatably connected to the second cylinder through a sealed bearing.

[0008] Preferably, the outer wall of the first motor is fixedly connected to the frame via a bracket, and the rotating shaft of the first gear is fixedly connected to the frame via a bearing.

[0009] Preferably, the upper end of the second cylinder is fixedly connected to the feed inlet, and the left side of the second cylinder is fixedly connected to the frame.

[0010] Preferably, the rice impurity screening structure includes a second motor, a stirring rod fixedly connected to the end of the output shaft of the second motor, the end of the stirring rod fixedly connected to the plate body through a sealed bearing, the two ends of the plate body fixedly connected to the first cylinder body, a sleeve fixedly connected to the outer wall of the first cylinder body, a first screen fixedly connected to the inner wall of the sleeve body, and a second screen fixedly connected to the inner wall of the first cylinder body.

[0011] Preferably, the outer wall of the second motor is fixedly connected to the housing via a bracket, and the outer wall of the sleeve is rotatably connected to the frame via a sealed bearing.

[0012] The rice impurity screening device proposed in this utility model has the following advantages: Through the cooperation of the dispersion structure and the rice impurity screening structure, the first cylinder is driven to rotate on the inner wall of the frame and the outer wall of the second cylinder via a sealed bearing by the second gear. The rotation of the first cylinder agitates and disperses the rice and impurities inside. At the same time, the first cylinder drives the sleeve to rotate within the frame via a sealed bearing, and the stirring rod stirs the rice and impurities. The first motor ultimately drives the first cylinder to rotate, agitating and dispersing the rice and impurities. The second motor then drives the stirring rod to rotate, stirring the rice and impurities. This allows the rice and impurities to be screened through the second and first filter screens, so that the rice and impurities of different sizes flow into the corresponding material bins, making it easier to clean and collect the impurities in the rice, effectively improving practicality and convenience. Attached Figure Description

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

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 for Figure 2 A front sectional view of the first cylinder in the middle section;

[0016] Figure 4 for Figure 2 Enlarged view of A in the middle;

[0017] Figure 5 for Figure 2 Enlarged view of B in the middle;

[0018] Figure 6 for Figure 2 Left sectional view of the first cylinder.

[0019] In the diagram: 1. Dispersion structure, 101. First motor, 102. First gear, 103. Second gear, 104. First cylinder, 105. Second cylinder; 2. Rice impurity screening structure, 201. Second motor, 202. Stirring rod, 203. Plate, 204. Sleeve, 205. First screen, 206. Second screen; 3. Bottom plate, 4. Frame, 5. Shell, 6. Feed inlet, 7. Feed box. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6 In this embodiment, a rice impurity screening device includes a base plate 3 and a frame 4. The upper end of the outer wall of the base plate 3 is fixedly connected to the frame 4. A dispersion structure 1 is provided on the left side inside the frame 4, and a rice impurity screening structure 2 is provided in the middle of the frame 4. A feed inlet 6 is fixedly connected to the upper left side of the frame 4.

[0022] A housing 5 is fixedly connected to the right side of the outer wall of the frame 4. Multiple material boxes 7 are placed on the upper end of the outer wall of the base plate 3. The outer wall of the first motor 101 is fixedly connected to the frame 4 through a bracket. The rotating shaft of the first gear 102 is fixedly connected to the frame 4 through a bearing. The first gear 102 can rotate inside the frame 4 through the bearing.

[0023] The upper end of the second cylinder 105 is fixedly connected to the feed inlet 6, the left side of the second cylinder 105 is fixedly connected to the frame 4, the outer wall of the second motor 201 is fixedly connected to the outer shell 5 through the bracket, and the outer wall of the sleeve 204 is rotatably connected to the frame 4 through the sealed bearing. The sleeve 204 can rotate within the frame 4 through the bearing.

[0024] See attached document Figure 1-6 The distributed structure 1 includes a first motor 101, which is a servo motor. A first gear 102 is fixedly connected to the end of the output shaft of the first motor 101. The outer wall of the first gear 102 meshes with a second gear 103. A first cylinder 104 is fixedly connected to the inner wall of the second gear 103.

[0025] The right end of the outer wall of the first cylinder 104 is rotatably connected to the frame 4 via a sealed bearing. The first cylinder 101 can rotate within the frame 4 via a sealed bearing. The left end of the inner wall of the first cylinder 104 is rotatably connected to the second cylinder 105 via a sealed bearing. The first cylinder 104 can rotate on the outer wall of the second cylinder 105 via a sealed bearing.

[0026] See attached document Figure 1-4 6: The rice impurity screening structure 2 includes a second motor 201, which is a servo motor. The output shaft of the second motor 201 is fixedly connected to a stirring rod 202. The end of the stirring rod 202 is fixedly connected to the plate 203 through a sealed bearing. The second motor 201 can drive the stirring rod 202 to rotate within the plate 203 through the sealed bearing.

[0027] The plate 203 is fixedly connected to the first cylinder 104 at both ends. A sleeve 204 is fixedly connected to the outer wall of the first cylinder 104. A first screen 205 is fixedly connected to the inner wall of the sleeve 204. The aperture of the first screen 205 is smaller than that of the second filter 206, allowing only rice to pass through. A second screen 206 is fixedly connected to the inner wall of the first cylinder 104, allowing only rice or rice husks to pass through. The first screen 205 and the second screen 206 are made of stainless steel with through holes on the surface.

[0028] Working principle:

[0029] Rice impurity screening process:

[0030] When it is necessary to screen the impurities in the rice, the rice with impurities is poured into the second cylinder 105 through the feed port 6. It flows into the first cylinder 104 through the slope inside the second cylinder 105. Then, the external power supply of the first motor 101 is turned on. The first motor 101 starts and drives the first gear 102 to rotate in the frame 4 through the bearing. The rotation of the first gear 102 drives the second gear 103 to rotate. The second gear 103 drives the first cylinder 104 to rotate in the inner wall of the frame 4 and the outer wall of the second cylinder 105 through the sealed bearing. The rotation of the first cylinder 104 agitates and disperses the rice and impurities inside.

[0031] At the same time, the first cylinder 104 drives the sleeve 204 to rotate within the frame 4 through the sealed bearing. Rice and small impurities such as sand and rice husks will flow into the sleeve 204 through the second screen 206. Larger impurities such as rice straw and weeds in the rice will remain in the first cylinder 104. The interior of the first cylinder 104 and the sleeve 204 are conical, and can flow to the right during rotation, so that rice straw and weeds flow from the right end opening of the first cylinder 104 to the right end hopper 7 for collection.

[0032] The rice and impurities flowing into the sleeve 205 are screened by the first screen 205. The aperture of the first screen 205 can only allow rice to pass through and flow into the left end hopper 7 for collection. Sand and rice husks will flow through the right end opening of the sleeve 204 into the middle hopper 7 for collection. This movement can screen the impurities in the rice.

[0033] While sieving the rice, the external power supply of the second motor 201 is connected. The second motor 201 starts and drives the stirring rod 202 to rotate inside the plate 203 through the sealed bearing. The stirring rod 202 stirs the rice and impurities, avoiding large accumulation and blockage during the sieving process.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A rice impurity screening device, comprising a base plate (3) and a frame (4), wherein the upper end of the outer wall of the base plate (3) is fixedly connected to the frame (4), characterized in that: The frame (4) has a dispersing structure (1) on the left side inside, a rice impurity screening structure (2) in the middle of the frame (4) inside, a feed inlet (6) is fixedly connected to the upper left side of the frame (4), a shell (5) is fixedly connected to the right side of the outer wall of the frame (4), and multiple material boxes (7) are placed on the upper side of the outer wall of the bottom plate (3).

2. The rice impurity screening device according to claim 1, characterized in that: The dispersed structure (1) includes a first motor (101), a first gear (102) is fixedly connected to the end of the output shaft of the first motor (101), the outer wall of the first gear (102) is meshed with a second gear (103), the inner wall of the second gear (103) is fixedly connected to a first cylinder (104), the right end of the outer wall of the first cylinder (104) is rotatably connected to the frame (4) through a sealed bearing, and the left end of the inner wall of the first cylinder (104) is rotatably connected to the second cylinder (105) through a sealed bearing.

3. The rice impurity screening device according to claim 2, characterized in that: The outer wall of the first motor (101) is fixedly connected to the frame (4) via a bracket, and the rotating shaft of the first gear (102) is fixedly connected to the frame (4) via a bearing.

4. The rice impurity screening device according to claim 2, characterized in that: The upper end of the second cylinder (105) is fixedly connected to the feed inlet (6), and the left side of the second cylinder (105) is fixedly connected to the frame (4).

5. The rice impurity screening device according to claim 1, characterized in that: The rice impurity screening structure (2) includes a second motor (201), a stirring rod (202) is fixedly connected to the end of the output shaft of the second motor (201), the end of the stirring rod (202) is fixedly connected to the plate (203) through a sealed bearing, the two ends of the plate (203) are fixedly connected to the first cylinder (104), a sleeve (204) is fixedly connected to the outer wall of the first cylinder (104), a first screen (205) is fixedly connected to the inner wall of the sleeve (204), and a second screen (206) is fixedly connected to the inner wall of the first cylinder (104).

6. The rice impurity screening device according to claim 5, characterized in that: The outer wall of the second motor (201) is fixedly connected to the housing (5) via a bracket, and the outer wall of the sleeve (204) is rotatably connected to the frame (4) via a sealed bearing.

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