Multistage rice screening device

Abstract

The utility model relates to a multi-stage rice screening device, which belongs to the technical field of rice screening and comprises a multi-stage screening machine and a plurality of screens arranged on the multi-stage screening machine. A discharging structure is arranged on one side of the multi-stage screening machine. The discharging structure comprises a leakage barrel and a discharging pipe located above the uppermost screen, the bottom of the leakage barrel is communicated with a rice outlet pipe, a cloth bag is installed at the output end of the rice outlet pipe, and the other end of the cloth bag is communicated with the discharging pipe; a moving structure is arranged on one side of the multi-stage screening machine; the moving structure comprises a sliding rail installed on the multi-stage screening machine. By arranging the discharging structure, rice enters the cloth bag after being discharged through the rice outlet pipe below the leakage barrel and is finally discharged through the discharging pipe, and by arranging the moving structure, the rice is continuously discharged through the discharging pipe and then is evenly laid on the screen net along with repeated clockwise and anticlockwise pointer rotation of the threaded rod driven by the motor. Therefore, the effect of preventing rice accumulation from influencing the screening time as much as possible is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice screening, and relates to a multi-stage rice screening device. Background Art

[0002] Rice screening is an important process, which is related to the quality, taste and safety of rice. Its important purpose is to remove impurities, broken grains and defective grains in rice, improve the purity and quality of rice, and ensure that consumers eat safe and healthy rice;

[0003] Among them, it includes multi-stage screening of rice. By means of sieves with different mesh sizes at multiple levels, the rice is classified, so that rice of different sizes and broken rice are separated;

[0004] In this process, the rice will be poured onto the sieve with the largest mesh size. However, if the rice is directly poured onto the sieve, it is easy to cause a large amount of sieve to accumulate in one place, and it takes a long time for the sieve to vibrate to make the rice on the sieve more evenly distributed, resulting in an increase in the time for the sieve to screen the rice;

[0005] To solve the above problems, a multi-stage rice screening device is proposed in this application. Summary of the Utility Model

[0006] The utility model aims at the technical problems existing in the prior art, and provides a multi-stage rice screening device.

[0007] The technical solution of the utility model to solve the above technical problems is as follows: a multi-stage rice screening device, including a multi-stage screening machine and a plurality of sieves arranged on the multi-stage screening machine;

[0008] A blanking structure is arranged on one side of the multi-stage screening machine;

[0009] The blanking structure includes a leakage cylinder and a blanking pipe located above the uppermost sieve. The bottom of the leakage cylinder is communicated with a rice outlet pipe, the output end of the rice outlet pipe is provided with a cloth bag, and the other end of the cloth bag is communicated with the blanking pipe;

[0010] A moving structure is arranged on one side of the multi-stage screening machine;

[0011] The moving structure includes a slide rail installed on the multi-stage screening machine. One end of the slide rail is provided with a motor. A slider is slidably connected in the slide rail. The output end of the motor passes through one end of the slide rail and is provided with a threaded rod. The outer side of the threaded rod is threadedly connected through the inner wall of the slider. A first support rod is installed on the slider, and the blanking pipe is installed at one end of the first support rod;

[0012] A dust removal component is arranged on one side of the multi-stage screening machine.

[0013] A bracket is installed on the leakage barrel; a top bag assembly is arranged on the bracket, and by arranging the bracket, it is used to support the leakage barrel.

[0014] The top bag assembly includes a fixed rod installed on the bracket, an electric telescopic rod is installed on the fixed rod, and a push rod is installed at the telescopic end of the electric telescopic rod. By arranging the top bag assembly, it is used to avoid blockage in the cloth bag as much as possible.

[0015] A butterfly valve is installed on the rice outlet pipe. By arranging the butterfly valve, it is used to control whether the rice outlet pipe is unobstructed.

[0016] The dust removal assembly includes a collection box and an air extraction pump located on one side of the multi-stage screening machine. The input end of the air extraction pump is installed with an air inlet pipe communicated with the inside of the collection box. A hose is communicated with the collection box, and one end of the hose far away from the collection box is communicated with a dust inlet pipe. A second support rod is installed on the slider, and the dust inlet pipe is installed at one end of the second support rod. By arranging the dust removal assembly, it is used to avoid the scattering of rice flour as much as possible.

[0017] A filter screen is installed on the inner side wall of the collection box, and the filter screen is attached to the end of the air inlet pipe located inside the collection box. By arranging the filter screen, it is used to intercept the rice flour.

[0018] The beneficial effects of the present utility model are:

[0019] By arranging the feeding structure, after the rice is discharged through the rice outlet pipe below the leakage barrel and enters the cloth bag, and finally is discharged through the feeding pipe. By arranging the moving structure, as the motor drives the repeated forward and reverse rotation of the threaded rod, the rice is continuously discharged through the feeding pipe and evenly spread on the screen, so as to achieve the effect of avoiding the accumulation of rice and affecting the screening time as much as possible;

[0020] By arranging the dust removal assembly and the moving structure, when the air extraction pump is started, the dust finally enters the collection box through the dust inlet pipe and is intercepted in the collection box by the filter screen, achieving the effect of avoiding the scattering of rice flour as much as possible and avoiding the influence of rice flour on the working environment. Brief Description of the Drawings

[0021] Figure 1 This is a schematic diagram showing the overall structure of the present utility model;

[0022] Figure 2 This is a schematic diagram showing the moving structure of the present utility model;

[0023] Figure 3 This is a schematic diagram showing the top bag assembly of the present utility model;

[0024] Figure 4 This is a schematic cross-sectional view showing the internal structure of the collection box and the structures of its related parts of the present utility model.

[0025] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Multi-stage screening machine; 101. Screen

[0027] 2. Feeding structure; 201. Leakage cylinder; 202. Rice outlet pipe; 203. Butterfly valve; 204. Cloth bag; 205. Feeding pipe; 206. Bracket

[0028] 3. Moving structure; 301. Slide rail; 302. Slide block; 303. Motor; 304. Threaded rod; 305. First support rod

[0029] 4. Top bag assembly; 401. Fixed rod; 402. Electric telescopic rod; 403. Push rod

[0030] 5. Dust removal assembly; 501. Collection box; 502. Hose; 503. Dust inlet pipe; 504. Second support rod; 505. Exhaust pump; 506. Air inlet pipe; 507. Filter screen Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0032] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0033] In the description of the present application, the term "for example" is used to mean "used as an example, illustration, or explanation". Any embodiment described as "for example" in the present application is not necessarily construed as being more preferred or more advantageous than other embodiments. In order for any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are set forth for purposes of explanation. It should be understood that those skilled in the art can recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope that conforms to the principles and features disclosed in the present application.

[0034] Reference Figure 1 and Figure 2 A multi-stage screening device for rice comprises a multi-stage screening machine 1 and a plurality of screens 101 arranged on the multi-stage screening machine 1. A feeding structure 2 is arranged on one side of the multi-stage screening machine 1. The feeding structure 2 comprises a collet 201 and a feeding pipe 205 located above the uppermost screen 101. A rice outlet pipe 202 is connected to the bottom of the collet 201. A cloth bag 204 is installed at the output end of the rice outlet pipe 202. The other end of the cloth bag 204 is connected to the feeding pipe 205. The collet 201 is used to load rice. After the rice is discharged through the rice outlet pipe 202 below the collet 201, it enters the cloth bag 204 and is finally discharged through the feeding pipe 205.

[0035] A mobile structure 3 is provided on one side of the multi-stage screening machine 1. The mobile structure 3 includes a slide rail 301 installed on the multi-stage screening machine 1. A motor 303 is installed at one end of the slide rail 301. A slider 302 is slidably connected in the slide rail 301. A threaded rod 304 is installed at the output end of the motor 303 through one end of the slide rail 301. The outer side of the threaded rod 304 is threadedly connected to the inner wall of the slider 302. A first support rod 305 is installed on the slider 302. The feed pipe 205 is installed at one end of the first support rod 305. The motor 303 is started to drive the threaded rod 304 to rotate, the rotation of the threaded rod 304 drives the movement of the slider 302, the movement of the slider 302 drives the movement of the first support rod 305, and the movement of the first support rod 305 drives the discharge pipe 205 to move. As the motor 303 drives the threaded rod 304 to repeatedly rotate the clockwise and counterclockwise pointers, the rice is continuously discharged through the discharge pipe 205 and evenly spread on the screen 101, thereby achieving the effect of avoiding the accumulation of rice and affecting the screening time as much as possible.

[0036] Reference Figure 1 A bracket 206 is installed on the drain tube 201, and the bracket 206 is used to support the drain tube 201.

[0037] Reference Figure 3 The support 206 is provided with a bag-lifting assembly 4, which includes a fixed rod 401 mounted on the support 206, an electric telescopic rod 402 mounted on the fixed rod 401, and a push rod 403 mounted on the telescopic end of the electric telescopic rod 402. By starting the electric telescopic rod 402, the push rod 403 is driven to repeatedly telescope, thereby pushing the cloth bag 204 to avoid clogging in the cloth bag 204 as much as possible;

[0038] A butterfly valve 203 is installed on the rice outlet pipe 202 to control whether the rice outlet pipe 202 is unobstructed.

[0039] Reference Figure 1 and Figure 4, a dust removal component 5 is provided on one side of the multi-stage screening machine 1. The dust removal component 5 includes a collection box 501 located on one side of the multi-stage screening machine 1 and an air extraction pump 505. An intake pipe 506 connected to the inside of the collection box 501 is installed at the input end of the air extraction pump 505. A hose 502 is connected to the collection box 501. One end of the hose 502 away from the collection box 501 is connected to a dust intake pipe 503. A second support rod 504 is installed on the slider 302, and the dust intake pipe 503 is installed at one end of the second support rod 504. A filter screen 507 is installed on the inner side wall of the collection box 501, and the filter screen 507 is in contact with one end of the intake pipe 506 located inside the collection box 501. According to the above technical solution, specifically, by starting the air extraction pump 505, the air in the collection box 501 is continuously extracted, so as to suck away dust. For example, rice flour enters the hose 502 through the dust intake pipe 503 and finally enters the collection box 501 and is intercepted by the filter screen 507 in the collection box 501, achieving the effect of minimizing the scattering of rice flour.

[0040] Working principle:

[0041] For this multi-stage rice screening device, after the rice is discharged through the rice outlet pipe 202 below the leakage barrel 201, it enters the cloth bag 204 and finally is discharged through the blanking pipe 205. By starting the motor 303, it drives the rotation of the threaded rod 304. The rotation of the threaded rod 304 drives the movement of the slider 302. The movement of the slider 302 drives the movement of the first support rod 305. The movement of the first support rod 305 drives the upward movement of the blanking pipe 205. As the motor 303 drives the threaded rod 304 to rotate repeatedly in the clockwise and counterclockwise directions, the rice is continuously discharged through the blanking pipe 205 and evenly spread on the sieve mesh 101, thus achieving the effect of minimizing the accumulation of rice and affecting the screening time.

[0042] For this multi-stage rice screening device, by starting the air extraction pump 505, the air in the collection box 501 is continuously extracted, so as to suck away dust. For example, rice flour enters the hose 502 through the dust intake pipe 503 and finally enters the collection box 501 and is intercepted by the filter screen 507 in the collection box 501, achieving the effect of minimizing the scattering of rice flour.

[0043] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A rice multi-stage screening device, comprising a multi-stage screening machine (1) and a plurality of screens (101) arranged on the multi-stage screening machine (1), characterized in that: A material discharge structure (2) is provided on one side of the multi-stage screening machine (1); The feeding structure (2) comprises a drain cylinder (201) and a feeding pipe (205) located above the uppermost screen (101); the bottom of the drain cylinder (201) is connected to a rice outlet pipe (202); a cloth bag (204) is installed at the output end of the rice outlet pipe (202); and the other end of the cloth bag (204) is connected to the feeding pipe (205); A moving structure (3) is provided on one side of the multi-stage screening machine (1); The mobile structure (3) comprises a slide rail (301) installed on the multi-stage screening machine (1), a motor (303) being installed at one end of the slide rail (301), a slider (302) being slidably connected inside the slide rail (301), a threaded rod (304) being installed at the output end of the motor (303) passing through one end of the slide rail (301), the outer side of the threaded rod (304) being threadedly connected to the inner wall of the slider (302), a first support rod (305) being installed on the slider (302), and the feed pipe (205) being installed at one end of the first support rod (305); A dust removal component (5) is provided on one side of the multi-stage screening machine (1).

2. A rice multi-stage screening device according to claim 1, characterized in that: A bracket (206) is installed on the drain cylinder (201); A top bag assembly (4) is provided on the bracket (206).

3. A rice multi-stage screening device according to claim 2, characterized in that: The top bag assembly (4) comprises a fixing rod (401) mounted on a bracket (206), an electric telescopic rod (402) being mounted on the fixing rod (401), and a push rod (403) being mounted at the telescopic end of the electric telescopic rod (402).

4. A rice multi-stage screening device according to claim 1, characterized in that: A butterfly valve (203) is installed on the rice outlet pipe (202).

5. A rice multi-stage screening device according to claim 1, characterized in that: The dust removal assembly (5) comprises a collection box (501) and an air pump (505) located on one side of the multi-stage screening machine (1); an air inlet pipe (506) connected to the interior of the collection box (501) is installed at the input end of the air pump (505); a hose (502) is connected to the collection box (501); an end of the hose (502) away from the collection box (501) is connected to a dust inlet pipe (503); a second support rod (504) is installed on the slider (302); and the dust inlet pipe (503) is installed at one end of the second support rod (504).

6. A rice multi-stage screening device according to claim 5, characterized in that: A filter screen (507) is installed on the inner side wall of the collection box (501), and the filter screen (507) is in contact with one end of the air inlet pipe (506) located inside the collection box (501).

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