A grain sizing device

Abstract

The utility model relates to the field of grain processing equipment, concretely relates to a grain fine screen device, including the bottom plate, the top of bottom plate is fixedly installed with the material guide seat through two buffer components, the surface of material guide seat is fixedly installed with the vibration motor, the one side of bottom plate top is fixedly installed with the support plate, the one side of support plate is fixedly installed with the feed bin through the connecting frame, the one side of feed bin is fixedly installed with the support, the bottom of support is fixedly installed with the fan. The utility model realizes the grain coarse screen through the coarse screen cooperation vibrator in the feed bin, and the filter component at the bottom of material guide seat realizes fine screen, and two -stage screening structure can accurately separate large particle impurity, qualified grain and small broken particle, and the screening precision is greatly improved, and simultaneously, the fan blows to the feed bin, can blow the light straw chaff, dust and other impurities in the grain to the dust collecting hopper, and then is guided into the bag dust collector through the pipeline and is collected, realizes that the screening and impurity cleaning carry out simultaneously, and improves the grain purity.

Description

Technical Field

[0001] This utility model relates to the field of grain processing equipment, specifically to a grain fine screening device. Background Technology

[0002] Before harvesting, storage and processing, grains need to be screened to remove impurities, broken grains and unqualified particles in order to improve grain quality and lay the foundation for subsequent processing steps. With the large-scale development of the grain processing industry, higher requirements are placed on the grading accuracy, screening efficiency and impurity removal capabilities of screening devices.

[0003] Existing technologies cannot fully realize the grading process of coarse and fine screening, resulting in low screening accuracy. Furthermore, it is not convenient to simultaneously clean light impurities such as dust and straw fragments in grains, which can easily lead to impurity residues affecting grain quality. At the same time, the disassembly and assembly of the screens are cumbersome, which is not conducive to subsequent cleaning and replacement maintenance.

[0004] Therefore, it is necessary to invent a grain fine sieving device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a grain fine sieving device that combines coarse and fine sieving with a structure that simultaneously cleans impurities, achieving high-precision sieving and efficient impurity removal, thereby solving the problems of insufficient sieving and grading, incomplete impurity cleaning, and inconvenient screen maintenance in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grain fine sieving device, comprising a base plate, a guide seat fixedly installed on the top of the base plate via two buffer components, a vibration motor fixedly installed on the surface of the guide seat, a support plate fixedly installed on one side of the top of the base plate, a feed hopper fixedly installed on one side of the support plate via a connecting frame, a bracket fixedly installed on one side of the feed hopper, a fan fixedly installed at the bottom of the bracket, a baffle net fixedly installed at the bottom of the feed hopper, a pipe penetrating through the support plate, one end of the pipe connected to a dust collection hopper located on one side of the baffle net, a bag filter fixedly installed on one side of the top of the base plate, the other end of the pipe connected to the bag filter, and filter components penetrating on both sides of the bottom of the guide seat.

[0007] Preferably, a support ring is fixedly installed in the inner cavity of the feeding hopper, a coarse screen is provided on the top of the support ring, and vibrators are fixedly installed on both sides of the bottom of the support ring.

[0008] Preferably, a pull rod is fixedly installed on one side of the top of the coarse screen, and a pull ring is fixedly installed at the top of the pull rod.

[0009] Preferably, the buffer assembly includes a buffer seat, the bottom of which is fixedly connected to the top of the base plate. A sliding seat is slidably installed in the inner cavity of the buffer seat. A plurality of springs are fixedly installed between the bottom of the sliding seat and the bottom of the inner wall of the buffer seat. An mounting seat is fixedly installed on the top of the sliding seat, and the top of the mounting seat is fixedly connected to the bottom of the guide seat.

[0010] Preferably, the filter assembly includes a filter frame, a fine screen is fixedly installed in the inner cavity of the filter frame, and mounting plates are fixedly installed on both sides of the bottom of the filter frame.

[0011] Preferably, the mounting plate has two positioning posts that pass through it. The positioning posts are fixedly connected to the bottom of the guide seat, and the bottom end of the positioning posts is threadedly connected with a threaded cap.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. The coarse screen in the feed hopper, in conjunction with a vibrator, performs coarse screening of the grain, while the filter assembly at the bottom of the guide seat performs fine screening. This two-stage screening structure can accurately separate large particles of impurities, qualified grains, and fine fragments, significantly improving screening accuracy. At the same time, a fan blows air into the feed hopper, which blows light straw fragments, dust, and other impurities in the grains toward the dust collection hopper, and then guides them through pipes to a bag filter for collection. This allows screening and impurity removal to be carried out simultaneously, improving the purity of the grains.

[0014] 2. The spring buffering effect of the buffer assembly can effectively reduce the impact force generated by the vibrating motor during operation, reduce the operating noise of the device, reduce the wear of parts, and extend the service life of the device. The filter assembly is fixed by the positioning column and the threaded cover, and the coarse screen can be quickly removed by the pull rod and pull ring, which facilitates the cleaning, replacement and maintenance of the screen and improves the ease of use of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the feed hopper of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the filter assembly of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate; 2. Buffer assembly; 21. Buffer seat; 22. Sliding seat; 23. Spring; 24. Mounting seat; 3. Guide seat; 4. Vibration motor; 5. Support plate; 6. Feed hopper; 7. Bracket; 8. Fan; 9. Barrier mesh; 10. Pipeline; 11. Bag dust collector; 12. Filter assembly; 121. Filter frame; 122. Fine screen; 123. Mounting plate; 124. Positioning column; 125. Threaded cover; 13. Support ring; 14. Coarse screen; 15. Vibrator; 16. Tie rod; 17. Pull ring; 18. Dust collection hopper. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-4 The grain fine screening device shown includes a base plate 1. A guide seat 3 is fixedly installed on the top of the base plate 1 via two buffer components 2. A vibration motor 4 is fixedly installed on the surface of the guide seat 3. A support plate 5 is fixedly installed on one side of the top of the base plate 1. A feed hopper 6 is fixedly installed on one side of the support plate 5 via a connecting frame. A bracket 7 is fixedly installed on one side of the feed hopper 6. A fan 8 is fixedly installed at the bottom of the bracket 7. A baffle 9 is fixedly installed at the bottom of the feed hopper 6. A pipe 10 passes through the support plate 5. One end of the pipe 10 is connected to a dust collection hopper 18, which is located on one side of the baffle 9. A bag filter 11 is fixedly installed on one side of the top of the base plate 1. The other end of the pipe 10 is connected to the bag filter 11. Filter components 12 pass through both sides of the bottom of the guide seat 3.

[0024] The barrier mesh 9 has an open design on the side facing the fan 8 and on the top and bottom surfaces, which can block grain particles from passing through while allowing light impurities to pass through;

[0025] The mounting bases 24 in the two buffer components 2 are not at the same height, causing the guide seat 3 to be tilted;

[0026] A support ring 13 is fixedly installed in the inner cavity of the feed hopper 6. A coarse screen 14 is provided on the top of the support ring 13, and vibrators 15 are fixedly installed on both sides of the bottom of the support ring 13.

[0027] Vibrator 15 drives support ring 13 and coarse screen 14 to vibrate. Vibrator 15 adopts existing technology.

[0028] The grain vibrates and slides on the coarse screen 14. Large particles of impurities (such as stones and whole straw) are intercepted by the coarse screen 14, while qualified grains and small fragments pass through the coarse screen 14 and fall to the bottom of the feed hopper 6.

[0029] A pull rod 16 is fixedly installed on one side of the top of the coarse screen 14, and a pull ring 17 is fixedly installed on the top of the pull rod 16;

[0030] After screening, by holding the pull ring 17 and pulling the rod 16, the coarse screen 14 can be removed from the feed bin 6 to clean up large particles of impurities trapped on the surface.

[0031] The buffer assembly 2 includes a buffer seat 21, the bottom of which is fixedly connected to the top of the base plate 1. A sliding seat 22 is slidably installed in the inner cavity of the buffer seat 21. A plurality of springs 23 are fixedly installed between the bottom of the sliding seat 22 and the bottom of the inner wall of the buffer seat 21. A mounting seat 24 is fixedly installed on the top of the sliding seat 22. The top of the mounting seat 24 is fixedly connected to the bottom of the guide seat 3.

[0032] The filter assembly 12 includes a filter frame 121, a fine screen 122 is fixedly installed in the inner cavity of the filter frame 121, and mounting plates 123 are fixedly installed on both sides of the bottom of the filter frame 121.

[0033] The feed guide seat 3 has an opening for use with the filter frame 121;

[0034] Two positioning posts 124 are connected through the mounting plate 123. The positioning posts 124 are fixedly connected to the bottom of the guide seat 3. The bottom end of the positioning post 124 is threadedly connected to a threaded cap 125.

[0035] By unscrewing the threaded cap 125, the filter frame 121 can be removed from the positioning post 124, and the fine screen 122 can be cleaned or replaced, making maintenance convenient;

[0036] All built-in electrical components are connected to the PLC controller.

[0037] The working principle of this practical application is as follows:

[0038] The grains to be screened are fed into the top of the feed hopper 6. The vibrator 15 is started, which drives the support ring 13 and the coarse screen 14 to vibrate. The grains vibrate and slide on the coarse screen 14. Large particles of impurities (such as stones and whole straw) are intercepted by the coarse screen 14. Qualified grains and small fragments pass through the coarse screen 14 and fall to the bottom of the feed hopper 6. At the same time, the fan 8 and the bag filter 11 are started. The fan 8 blows air into the feed hopper 6. Light impurities (dust and straw fragments) mixed with the grains during the fall are carried by the airflow. The baffle net 9 can prevent the grains from being blown by the airflow to the dust collection hopper 18. Only the impurities pass through the baffle net 9 and enter the dust collection hopper 18. Then, they are introduced into the bag filter 11 through the pipe 10 for collection, thus achieving impurity separation.

[0039] After being processed by the feed hopper 6, the grain falls into the guide seat 3. The vibration motor 4 is started, and the vibration motor 4 drives the guide seat 3 to vibrate. The buffer component 2 works synchronously, and the sliding seat 22 slides up and down in the buffer seat 21. The spring 23 extends and retracts to buffer the vibration impact, reducing the noise and wear of the device. The grain in the guide seat 3 spreads to both sides under the action of vibration and passes through the two filter components 12 at the bottom of the guide seat 3 in sequence. The fine screen 122 performs secondary screening of the grain. Small particles pass through the fine screen 122 and are collected. Qualified grains remain on the fine screen 122, completing the fine screening.

[0040] After screening, by holding the pull ring 17 and pulling the rod 16, the coarse screen 14 can be removed from the feed hopper 6 to clean the large particles of impurities intercepted on the surface; by unscrewing the threaded cover 125, the filter frame 121 can be removed from the positioning post 124, and the fine screen 122 can be cleaned or replaced, making maintenance convenient.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grain fine sieving device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly installed with a guide seat (3) by two buffer components (2). A vibration motor (4) is fixedly installed on the surface of the guide seat (3). A support plate (5) is fixedly installed on one side of the top of the base plate (1). A feeding hopper (6) is fixedly installed on one side of the support plate (5) by a connecting frame. A bracket (7) is fixedly installed on one side of the feeding hopper (6). A fan (8) is fixedly installed at the bottom of the bracket (7). A baffle net (9) is fixedly installed at the bottom of the feeding hopper (6). A pipe (10) runs through the support plate (5). One end of the pipe (10) is connected to a dust collection hopper (18). The dust collection hopper (18) is located on one side of the baffle net (9). A bag filter (11) is fixedly installed on one side of the top of the base plate (1). The other end of the pipe (10) is connected to the bag filter (11). Filter components (12) run through both sides of the bottom of the guide seat (3).

2. The grain fine sieve device according to claim 1, characterized in that: The inner cavity of the feed hopper (6) is fixedly equipped with a support ring (13), the top of the support ring (13) is provided with a coarse screen (14), and vibrators (15) are fixedly installed on both sides of the bottom of the support ring (13).

3. A grain fine sieve device according to claim 2, characterized in that: A pull rod (16) is fixedly installed on one side of the top of the coarse screen (14), and a pull ring (17) is fixedly installed at the top of the pull rod (16).

4. The grain fine sieve device according to claim 1, characterized in that: The buffer assembly (2) includes a buffer seat (21), the bottom of which is fixedly connected to the top of the base plate (1). A sliding seat (22) is slidably installed in the inner cavity of the buffer seat (21). A plurality of springs (23) are fixedly installed between the bottom of the sliding seat (22) and the bottom of the inner wall of the buffer seat (21). A mounting seat (24) is fixedly installed on the top of the sliding seat (22), and the top of the mounting seat (24) is fixedly connected to the bottom of the guide seat (3).

5. A grain fine sieve device according to claim 1, characterized in that: The filter assembly (12) includes a filter frame (121), a fine screen (122) is fixedly installed in the inner cavity of the filter frame (121), and mounting plates (123) are fixedly installed on both sides of the bottom of the filter frame (121).

6. A grain fine sieve device according to claim 5, characterized in that: Two positioning posts (124) are connected through the mounting plate (123). The positioning posts (124) are fixedly connected to the bottom of the guide seat (3). The bottom end of the positioning posts (124) is threadedly connected to a threaded cap (125).

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