Screening device for rice processing

Abstract

The utility model discloses a screening device for rice processing, which comprises a screening box body, the top of the screening box body is fixedly connected with a feed hopper, an inner cavity of the screening box body is provided with a multi-stage screening mechanism, the multi-stage screening mechanism is obliquely installed towards the right lower part, and the multi-stage screening mechanism slides up and down in the inner cavity of the screening box body. A collecting box and a waste box are detachably and slidably connected to the bottom of an inner cavity of the screening box, the collecting box is located at the bottom of the multi-stage screening mechanism, the waste box is located at the bottom of the right side of the multi-stage screening mechanism, and an air pipe is arranged on the left side of the screening box. According to the multi-stage screening device, the multi-stage screening mechanism is arranged in the inner cavity of the screening box body to slide up and down, so that the screening efficiency of the multi-stage screening mechanism is improved, meanwhile, the position of the feeding hopper in the screening box body can be kept fixed, feeding of the feeding hopper is facilitated, and the screening efficiency of the screening device is improved.

Description

Technical Field

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

[0002] During the processing of paddy rice into rice, various impurities such as sand, soil, and seeds will be mixed in. If these impurities are not completely removed during processing, it will not only affect safe production and reduce the quality of rice, but also be harmful to human health.

[0003] Among them, CN213914759U discloses a rice screening device for rice processing, including a base plate and a box body. Support legs are vertically welded to all four sides of the lower surface of the base plate. Two sets of slide rails are fixedly installed on the upper surface of the base plate, arranged in parallel. Sliding columns are fixedly installed to all four sides of the lower surface of the box body. A fixing block is fixedly installed at the bottom of the side wall of the box body away from the rice husk opening. A first support rod is fixedly connected to the middle of the side wall of the fixing block. A connecting block is fixedly connected to the end of the first support rod away from the fixing block, and a second support rod is movably connected to the first support rod through the connecting block. A rotating wheel is provided at the end of the second support rod away from the connecting block. This utility model solves the problem of screen aperture in traditional screening devices, enabling the device to screen rice of different sizes through the screen aperture, achieving more efficient screening, accelerating screening efficiency, and improving rice quality.

[0004] During use, it was found that the screening device was constantly moving back and forth, which caused the feed inlet 11 in the box 7 to shake constantly, making it difficult to feed materials and affecting the screening efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for rice processing, which has the advantages of facilitating feeding and improving screening efficiency, in order to solve the aforementioned technical problems.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A screening device for rice processing includes a screening box: a feeding hopper is fixedly connected to the top of the screening box, a multi-stage screening mechanism is provided in the inner cavity of the screening box, the multi-stage screening mechanism is installed at an angle to the lower right, the multi-stage screening mechanism slides up and down in the inner cavity of the screening box, a collection box and a waste box are detachably slidably connected to the bottom of the inner cavity of the screening box, the collection box is located at the bottom of the multi-stage screening mechanism, the waste box is located at the bottom right side of the multi-stage screening mechanism, and an air duct is provided on the left side of the screening box.

[0007] Preferably, the left and right sides of the inner cavity of the screening box are fixedly connected with fixed plates, the two fixed plates are arranged in a vertical manner, the top of the fixed plate is provided with sliding plates through a plurality of elastic extension rods, and the two sliding plates are fixedly connected to the left and right sides of the multi-stage screening mechanism.

[0008] Preferably, the inner cavity of the screening box is rotatably connected with a rotating shaft one, a plurality of eccentric discs are fixedly connected to the surface of the rotating shaft one, and the eccentric discs roll on the surface of the left sliding plate.

[0009] Preferably, the bottom of the inner cavity of the feeding hopper is rotatably connected with a rotating shaft two, a plurality of distribution plates are fixedly connected to the surface of the rotating shaft two, the distribution plates are arranged in an annular array on the surface of the rotating shaft two, a motor is installed at the rear side of the screening box, and the rear sides of the rotating shaft two and the rotating shaft one extend to the outside of the screening box and are respectively drivingly connected with the output shaft of the motor through a belt disc.

[0010] Preferably, the multi-stage screening mechanism is composed of an upper screen, a middle screen and a lower screen, and the upper screen, the middle screen and the lower screen are fixedly connected at equal intervals from top to bottom.

[0011] Preferably, the right side of the upper screen, the middle screen and the lower screen is fixedly connected with a material blocking plate, the top of the left side of the upper screen is fixedly connected with a partition plate, and the left and right sides of the bottom of the lower screen are fixedly connected with dustproof plates.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The multi-stage screening mechanism is arranged in the inner cavity of the screening box and slides up and down, thereby improving the screening efficiency of the multi-stage screening mechanism, and the position of the feeding hopper in the screening box is relatively fixed, so that the feeding of the feeding hopper is facilitated, and the screening efficiency of the screening device is improved.

[0014] 2. The cooperation of the rotating shaft two and the distribution plate can prevent the feeding hopper from being blocked and can make the rice in the feeding hopper enter the inner cavity of the screening box at a uniform speed for screening.

[0015] 3. The material blocking plate can guide the impurities screened out, so that the impurities screened out do not enter the surface of the middle screen and the lower screen, and the screening efficiency is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or other aspects of the present application will become more apparent and more readily appreciated through consideration of the following detailed description, taken in conjunction with the accompanying drawings, which are provided by way of illustration only and are not intended to be limiting in any sense: wherein:

[0017] Fig. 1A front view of a three-dimensional schematic diagram of an embodiment of the utility model;

[0018] Fig. 2 A partial three-dimensional schematic diagram of an embodiment of the utility model.

[0019] In the drawings, the components represented by each reference numeral are listed as follows:

[0020] 1, screening box, 2, feed hopper, 3, multi-stage screening mechanism, 31, upper screen, 32, middle screen, 33, lower screen, 34, baffle, 35, partition, 36, dustproof plate, 4, collection box, 5, scrap box, 6, fixed plate, 7, elastic telescopic rod, 8, sliding plate, 9, rotating shaft one, 10, eccentric disc, 11, rotating shaft two, 12, distribution plate, 13, air pipe. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the rice processing screening device of the utility model will be described with reference to the drawings.

[0022] Figs. 1-2The utility model discloses a kind of screening devices for rice processing, it includes screening box 1: screening box 1 top is fixedly connected with feed hopper 2, the inner chamber of screening box 1 is provided with multistage screening mechanism 3, multistage screening mechanism 3 is installed to right and downward inclination, multistage screening mechanism 3 is slid in the inner chamber of screening box 1, the bottom of screening box 1 inner chamber is detachably slidably connected with collection tank 4 and waste tank 5, collection tank 4 is located at the bottom of multistage screening mechanism 3, waste tank 5 is located at the bottom of multistage screening mechanism 3 right side, the left side of screening box 1 is provided with air pipe 13, the left and right sides of the inner chamber of screening box 1 are all fixedly connected with fixed plate 6, two fixed plates 6 are arranged in up and down, the top of fixed plate 6 is installed with sliding plate 8 by multiple elastic expansion link 7, two sliding plates 8 are respectively fixedly connected in the left and right sides of multistage screening mechanism 3, the inner chamber of screening box 1 is rotatably connected with rotating shaft one 9, rotating shaft one 9 is fixedly connected with multiple eccentric discs 10 on surface, eccentric disc 10 rolls on the surface of left sliding plate 8, the bottom of feed hopper 2 inner chamber is rotatably connected with rotating shaft two 11, rotating shaft two 11 is fixedly connected with multiple distribution plate 12 on surface, distribution plate 12 is annular array on the surface of rotating shaft two 11, by the cooperation of rotating shaft two 11 and distribution plate 12, first, can prevent the blockage of feed hopper 2, second, can make rice in feed hopper 2 can be relatively uniform speed into the inner chamber of screening box 1 and screen, the rear side of screening box 1 is installed with motor, the rear side of rotating shaft two 11 and rotating shaft one 9 all extends to the outside of screening box 1 and is respectively connected with the output shaft of motor by belt disc transmission, multistage screening mechanism 3 is composed of upper screen 31, middle screen 32 and lower screen 33, upper screen 31, middle screen 32 and lower screen 33 are fixedly connected equidistantly from top to bottom, the right side of upper screen 31, middle screen 32 and lower screen 33 is all fixedly connected with baffle 34, by the arrangement of baffle 34, can guide the impurity screened down, avoid the impurity screened down to enter the surface of middle screen 32 and lower screen 33, influence its screening efficiency, the top of upper screen 31 left side is fixedly connected with partition 35, the left and right of lower screen 33 bottom are all fixedly connected with dustproof plate 36.

[0023] Working Principle: When using this invention, the user feeds the rice to be processed into the inner cavity of the feed hopper 2. The motor on the rear side of the screening box 1 drives the rotating shaft 11 and the rotating shaft 9 to rotate within the inner cavity of the screening box 1. At this time, the distribution plate 12 will convey the rice in the feed hopper 2 to the inner cavity of the screening box 1 at a relatively uniform speed. When the rice falls down onto the surface of the upper screen 31, the suction device connected to the air duct 13 will suck away the husks from the rice. Subsequently, the multi-stage screening mechanism 3 will classify and screen the rice. The screened impurities will be guided to the inner cavity of the waste bin 5 through the baffle plate 34, and the screened rice will fall out. The rice is collected in the inner cavity of the collection box 4. When the multi-stage screening mechanism 3 screens the rice, the rotating shaft 9 drives the eccentric disk 10 to rotate in the inner cavity of the screening box 1, thereby pressing the sliding plate 8 and the multi-stage screening mechanism 3 back and forth. With the use of the elastic telescopic rod 7, the multi-stage screening mechanism 3 slides up and down in the inner cavity of the screening box 1, thereby improving the screening efficiency of the multi-stage screening mechanism 3. By setting the multi-stage screening mechanism 3 inside the screening box 1, the screening device can keep the position of the feed hopper 2 in the screening box 1 relatively fixed, which is convenient for feeding, thereby improving the screening efficiency of the screening device.

[0024] In summary, this rice processing screening device improves the screening efficiency of the multi-stage screening mechanism 3 by setting it up and down in the inner cavity of the screening box 1. At the same time, it can keep the position of the feed hopper 2 in the screening box 1 relatively fixed, which facilitates feeding and thus improves the screening efficiency of the screening device.

Claims

1. A screening device for rice processing, characterized in that, The utility model provides a screening box (1) is provided with: the top fixed connection of screening box (1) has a feed hopper (2), the inner chamber of screening box (1) is provided with multistage screening mechanism (3), multistage screening mechanism (3) is installed to the right lower inclination, multistage screening mechanism (3) is slid on the inner chamber of screening box (1) up and down, the bottom detachable sliding connection of screening box (1) inner chamber has collection box (4) and waste box (5), collection box (4) is located the bottom of multistage screening mechanism (3), waste box (5) is located the bottom of multistage screening mechanism (3) right side, the left side of screening box (1) is provided with air pipe (13).

2. The screening device for rice processing according to claim 1, characterized in that, The left and right sides of the inner chamber of the screening box (1) are fixedly connected with fixed plates (6), the two fixed plates (6) are arranged in an up-down manner, the top of the fixed plate (6) is provided with sliding plates (8) through a plurality of elastic expansion rods (7), and the two sliding plates (8) are fixedly connected to the left and right sides of the multistage screening mechanism (3) respectively.

3. The screening device for rice processing according to claim 2, characterized in that, The inner chamber of the screening box (1) is rotatably connected with a rotating shaft I (9), the surface of the rotating shaft I (9) is fixedly connected with a plurality of eccentric discs (10), and the eccentric discs (10) roll on the surface of the left sliding plate (8).

4. The screening device for rice processing according to claim 3, characterized in that, The bottom of the inner chamber of the feed hopper (2) is rotatably connected with a rotating shaft II (11), the surface of the rotating shaft II (11) is fixedly connected with a plurality of distribution plates (12), the distribution plates (12) are arranged in an annular array on the surface of the rotating shaft II (11), a motor is installed at the rear side of the screening box (1), and the rear sides of the rotating shaft II (11) and the rotating shaft I (9) extend to the outside of the screening box (1) and are respectively connected with the output shaft of the motor through a belt disc transmission.

5. The screening device for rice processing according to claim 4, characterized in that, The multistage screening mechanism (3) is composed of an upper screen (31), a middle screen (32) and a lower screen (33), and the upper screen (31), the middle screen (32) and the lower screen (33) are fixedly connected at equal intervals from top to bottom.

6. The screening device for rice processing according to claim 5, characterized in that, The right sides of the upper screen (31), the middle screen (32) and the lower screen (33) are fixedly connected with material blocking plates (34), the top of the left side of the upper screen (31) is fixedly connected with a partition plate (35), and the left and right sides of the bottom of the lower screen (33) are fixedly connected with dustproof plates (36).

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