Rice variety winnowing and screening structure

Abstract

The utility model relates to the technical field of rice screening, discloses a winnowing and screening structure for rice varieties, and solves the problems that part of impurities are clamped in rice blocks and are difficult to blow away by wind power due to the fact that the rice blocks fall down and are discharged from a feeding port in a centralized manner, and the screening quality and efficiency are reduced. A rice variety winnowing and screening structure comprises a screening bin, a bin door, a discharging bin, supporting legs, a discharging channel, a feeding port and a feeding assembly, a pull plate is pulled through a handle, the pull plate moves to drive a feeding plate to move, the feeding plate moves to control the feeding amount of rice conveniently, and the situation that the screening effect of a draught fan is poor due to too much rice feeding is prevented; the first motor drives the threaded rod to rotate, the threaded rod rotates to drive the poking plate to slide along the guide rod, the poking plate slides to continuously poke rice in the feeding channel, the rice is evenly distributed in the feeding channel, a looser state is formed, the permeability is improved, and the stacking and caking phenomena are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rice screening, in particular to a rice variety winnowing and screening structure. Background Art

[0002] Paddy is a grain processed after rice is harvested. It is rich in nutrients such as carbohydrates, proteins, vitamins and minerals, and is one of the important food sources for humans. After processing, paddy can be made into food such as rice, rice noodles, cooked rice, rice porridge, etc. It can also be used for industrial purposes such as brewing rice wine and making rice noodles.

[0003] During the harvesting and processing of rice, impurities such as chaff, husks, and stones may be mixed in. These impurities can be separated by screening to improve the purity and quality of the rice. When the existing winnowing and screening device screens the rice, the rice is often discharged from the feed port in a concentrated manner, causing the rice to fall in a cluster, resulting in some impurities and shriveled light rice being sandwiched in the rice clumps, which are difficult to be blown away by the wind, thereby reducing the quality and efficiency of screening. Utility Model Content

[0004] The utility model aims to provide a rice variety winnowing and screening structure. By adopting the device to work, the problem that rice is concentrated and discharged in a group from a feeding port, causing part of impurities to be trapped in the rice clumps and difficult to be blown away by wind, thereby reducing the quality and efficiency of screening is solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice variety winnowing and screening structure, comprising a screening bin and a bin door arranged on one side of the screening bin, a discharge bin is arranged below the screening bin, a support leg is fixedly connected to the bottom of the discharge bin, a discharge channel is connected through the discharge bin and the screening bin, a feed port is opened at the top of the screening bin, and a feed assembly for controlling the feed amount of rice is arranged above the feed port;

[0006] The feeding assembly includes a fixed plate fixedly connected to the top of the screening bin, a feeding channel fixedly connected to the inner side of the fixed plate, a first motor fixedly connected to the outer side of the feeding channel, a threaded rod arranged inside the feeding channel, a guide rod fixedly connected between the inner walls of the feeding channel, a paddle plate threadedly connected to the outer surface of the threaded rod, a pull plate arranged directly below the feeding channel, a feeding plate fixedly connected to the bottom end of the pull plate, and a handle fixedly connected to one end of the pull plate. The paddle plate is slidably connected to the guide rod, one end of the threaded rod passes through the feeding channel and is fixedly connected to the output end of the first motor, the other end of the threaded rod is rotatably connected to the inner wall of the feeding channel, the first motor is penetrated and connected to the fixed plate, the top of the pull plate contacts the bottom end of the feeding channel, the bottom end of the pull plate contacts the top of the screening bin, the feed plate is arranged inside the screening bin, and the feeding port is connected to the feeding channel.

[0007] Furthermore, a second sliding block is fixedly connected to the bottom end of the pull plate, a sliding groove is provided at the top end of the screening bin, and the second sliding block is slidably connected to the sliding groove.

[0008] Furthermore, a first opening is opened on one side of the screening bin, a first dust cover is fixedly connected to the outer surface of the first opening, a fan is arranged inside the first dust cover, a second opening is opened on the other side of the screening bin, a second dust cover is fixedly connected to the outer surface of the second opening, a dust exhaust port is opened on the lower surface of the second dust cover, and a dust collecting trough is arranged directly below the dust exhaust port.

[0009] Furthermore, a connecting plate is fixedly connected to one end of the dust collecting trough, and a locking bolt is threadedly connected between the connecting plate and the outer surface of the screening bin.

[0010] Furthermore, a sieve plate is movably connected inside the screening bin, the sieve plate is arranged at an angle, and a vibration motor is fixedly connected to the bottom end of the sieve plate.

[0011] Furthermore, a threaded conveying rod is provided inside the discharge bin, one end of the discharge bin is fixedly connected to the second motor, one end of the threaded conveying rod passes through the discharge bin and is fixedly connected to the output end of the second motor, the other end of the threaded conveying rod is rotatably connected to the inner wall of the discharge bin, and a discharge port is opened on the side of the discharge bin away from the second motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model proposes a rice winnowing and screening structure, wherein a pull plate is pulled by a handle, and the movement of the pull plate drives a feed plate to move, and the movement of the feed plate is convenient for controlling the feed amount of rice, and the feed plate moves inward to reduce the feed amount of rice, so as to prevent too much rice from being fed and causing poor screening effect of the fan, and the first motor is started, and the first motor drives the threaded rod to rotate, and the rotation of the threaded rod drives the paddle plate to slide along the guide rod, and the sliding of the paddle plate continuously paddles the rice inside the feed channel, so that the rice is evenly distributed inside the feed channel, forming a looser state, increasing permeability, reducing accumulation and agglomeration, and solving the problem that rice is concentrated and discharged in a group from the feed inlet, causing a part of impurities to be sandwiched in the rice agglomerates and difficult to be blown away by wind, thereby reducing the quality and efficiency of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 The internal structure of the screening bin of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 3 The internal structure of the screening bin of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 4 The structure of the feed assembly of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 5 The structure of the feed assembly of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 6 It is a schematic diagram of the internal structure of the discharge bin of the utility model.

[0020] In the figure: 1. screening bin; 11. bin door; 12. slide; 13. first opening; 14. second opening; 2. discharge channel; 3. discharge bin; 31. threaded conveying rod; 32. second motor; 33. discharge port; 4. support leg; 5. feed assembly; 51. fixing plate; 52. feed channel; 53. first motor; 54. threaded rod; 55. guide rod; 56. paddle plate; 57. pull plate; 571. second slider; 58. feed plate; 59. handle; 6. first dust cover; 61. fan; 7. second dust cover; 8. dust collecting trough; 81. connecting plate; 811. locking bolt; 9. sieve plate; 10. vibration motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1 A rice variety winnowing and screening structure comprises a screening bin 1 and a bin door 11 arranged on one side of the screening bin 1, a discharge bin 3 is arranged below the screening bin 1, a supporting leg 4 is fixedly connected to the bottom end of the discharge bin 3, a discharge channel 2 is connected through the discharge bin 3 and the screening bin 1, a feed port is opened at the top of the screening bin 1, and a feed component 5 for controlling the feed amount of rice is arranged above the feed port.

[0024] The utility model is further described below in conjunction with embodiments. Example 1

[0025] See also Figure 1-Figure 6The feeding assembly 5 includes a fixed plate 51 fixedly connected to the top of the screening bin 1, a feeding channel 52 fixedly connected to the inner side of the fixed plate 51, a first motor 53 fixedly connected to the outer side of the feeding channel 52, a threaded rod 54 arranged inside the feeding channel 52, a guide rod 55 fixedly connected between the inner walls of the feeding channel 52, a dial plate 56 threadedly connected to the outer surface of the threaded rod 54, a pulling plate 57 arranged just below the feeding channel 52, a feeding plate 58 fixedly connected to the bottom end of the pulling plate 57, and a handle 59 fixedly connected to one end of the pulling plate 57, the dial plate 56 is slidably connected to the guide rod 55, one end of the threaded rod 54 penetrates the feeding channel 52 and is fixedly connected to the output end of the first motor 53, the other end of the threaded rod 54 is rotatably connected to the inner wall of the feeding channel 52, the first motor 53 is penetrated and connected to the fixed plate 51, and the pulling plate 5 7, the top end is in contact with the bottom end of the feed channel 52, the bottom end of the pull plate 57 is in contact with the top end of the screening bin 1, the feed plate 58 is arranged inside the screening bin 1, the feed port is connected with the feed channel 52, the pull plate 57 is pulled by the handle 59, the movement of the pull plate 57 drives the feed plate 58 to move, the movement of the feed plate 58 is convenient for controlling the feed amount of rice, the feed plate 58 moves inwardly to reduce the feed amount of rice, and prevents too much rice from being fed, resulting in poor screening effect of the fan 61, and the first motor 53 is started, the first motor 53 drives the threaded rod 54 to rotate, the rotation of the threaded rod 54 drives the paddle plate 56 to slide along the guide rod 55, and the paddle plate 56 slides and continuously paddles the rice inside the feed channel 52, so that the rice is evenly distributed inside the feed channel 52, forming a looser state, increasing permeability, and reducing accumulation and agglomeration.

[0026] A second slider 571 is fixedly connected to the bottom end of the pull plate 57, a slide groove 12 is provided at the top of the screening bin 1, and the second slider 571 is slidably connected to the slide groove 12. When the pull plate 57 is moved by pulling the handle 59, the second slider 571 slides along the slide groove 12 to play a guiding role.

[0027] A first opening 13 is provided on one side of the screening bin 1, and a first dust cover 6 is fixedly connected to the outer surface of the first opening 13, and a fan 61 is arranged inside the first dust cover 6. A second opening 14 is provided on the other side of the screening bin 1, and a second dust cover 7 is fixedly connected to the outer surface of the second opening 14. A dust discharge port is provided on the lower surface of the second dust cover 7, and a dust collecting trough 8 is arranged directly below the dust discharge port. When the fan 61 is started, the fan 61 generates an airflow, and small particles of impurities with small volume and light weight, such as dust and shriveled rice in the falling rice, are blown to the second dust cover 7 under the action of the airflow, and fall into the dust collecting trough 8 through the dust discharge port.

[0028] A connecting plate 81 is fixedly connected to one end of the dust collecting trough 8, and a locking bolt 811 is threadedly connected between the connecting plate 81 and the outer surface of the screening bin 1. The locking bolt 811 is removed and the connecting plate 81 is separated from the screening bin 1, so that the dust collecting trough 8 can be removed and the small particles of impurities in the dust collecting trough 8 can be further processed.

[0029] A sieve plate 9 is movably connected inside the screening bin 1, and the sieve plate 9 is arranged at an angle. A vibration motor 10 is fixedly connected to the bottom end of the sieve plate 9. The diameter of the sieve holes of the sieve plate 9 is larger than the rice and smaller than large particles of impurities such as weeds and soil. The rice that falls on the top of the sieve plate 9 will fall down through the sieve holes, while the large particles of impurities will be retained on the top of the sieve plate 9. Starting the vibration motor 10 is convenient for improving the filtering effect.

[0030] A threaded conveying rod 31 is arranged inside the discharge bin 3, and a second motor 32 is fixedly connected to one end of the discharge bin 3. One end of the threaded conveying rod 31 passes through the discharge bin 3 and is fixedly connected to the output end of the second motor 32. The other end of the threaded conveying rod 31 is rotatably connected to the inner wall of the discharge bin 3. A discharge port 33 is provided on the side of the discharge bin 3 away from the second motor 32. When the second motor 32 is started, the second motor 32 drives the threaded conveying rod 31 to rotate. The threaded conveying rod 31 rotates to continuously squeeze the rice to move forward, and falls to the outside through the discharge port 33, so that the rice discharge is more uniform.

[0031] When in use, the pull plate 57 is pulled by the handle 59, and the movement of the pull plate 57 drives the feed plate 58 to move. The movement of the feed plate 58 is convenient for controlling the feeding amount of rice. The feed plate 58 moves inward to reduce the feeding amount of rice. The first motor 53 is started, and the first motor 53 drives the threaded rod 54 to rotate. The rotation of the threaded rod 54 drives the paddle plate 56 to slide along the guide rod 55, and the rice is poured into the feeding channel 52. The paddle plate 56 slides and continuously paddles the rice in the feeding channel 52, so that the rice is evenly distributed in the feeding channel 52, forming a looser state, increasing permeability, and reducing The rice grains are accumulated and agglomerated, and fall into the screening bin 1 through the feed port. The small particles of impurities such as dust and shriveled rice in the falling rice grains are blown to the second dust cover 7 under the action of the airflow, and fall into the dust collecting trough 8 through the dust discharge port. The rice grains fall to the top of the sieve plate 9, and the large particles of impurities will be retained on the top of the sieve plate 9. The rice grains fall into the discharge bin 3 through the sieve holes and the discharge channel 2 in turn. Under the action of the second motor 32, the threaded conveying rod 31 rotates to continuously squeeze the rice grains to move forward, and fall to the outside through the discharge port 33, so that the rice discharge is more uniform.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice variety winnowing and screening structure, comprising a screening bin (1) and a bin door (11) arranged on one side of the screening bin (1), characterized in that: A discharge bin (3) is provided below the screening bin (1), a support leg (4) is fixedly connected to the bottom of the discharge bin (3), a discharge channel (2) is connected through the discharge bin (3) and the screening bin (1), a feed port is provided at the top of the screening bin (1), and a feed assembly (5) for controlling the amount of rice feed is provided above the feed port; The feed assembly (5) comprises a fixed plate (51) fixedly connected to the top of the screening bin (1), a feed channel (52) fixedly connected to the inner side of the fixed plate (51), a first motor (53) fixedly connected to the outer side of the feed channel (52), a threaded rod (54) arranged inside the feed channel (52), a guide rod (55) fixedly connected between the inner walls of the feed channel (52), a paddle plate (56) threadedly connected to the outer surface of the threaded rod (54), a pull plate (57) arranged directly below the feed channel (52), a feed plate (58) fixedly connected to the bottom end of the pull plate (57), and a fixed A handle (59) is fixedly connected to one end of the pull plate (57), the pull plate (56) is slidably connected to the guide rod (55), one end of the threaded rod (54) passes through the feed channel (52) and is fixedly connected to the output end of the first motor (53), the other end of the threaded rod (54) is rotatably connected to the inner wall of the feed channel (52), the first motor (53) is connected to the fixed plate (51), the top end of the pull plate (57) contacts the bottom end of the feed channel (52), the bottom end of the pull plate (57) contacts the top end of the screening bin (1), the feed plate (58) is arranged inside the screening bin (1), and the feed port is connected to the feed channel (52).

2. A rice variety winnowing and screening structure according to claim 1, characterized in that: A second sliding block (571) is fixedly connected to the bottom end of the pull plate (57), a sliding groove (12) is provided at the top end of the screening bin (1), and the second sliding block (571) is slidably connected to the sliding groove (12).

3. The rice variety winnowing and screening structure according to claim 1, characterized in that: The screening bin (1) has a first opening (13) on one side, a first dust cover (6) is fixedly connected to the outer surface of the first opening (13), a fan (61) is arranged inside the first dust cover (6), a second opening (14) is opened on the other side of the screening bin (1), a second dust cover (7) is fixedly connected to the outer surface of the second opening (14), a dust discharge port is opened on the lower surface of the second dust cover (7), and a dust collecting trough (8) is arranged directly below the dust discharge port.

4. A rice variety winnowing and screening structure according to claim 3, characterized in that: A connecting plate (81) is fixedly connected to one end of the dust collecting trough (8), and a locking bolt (811) is threadedly connected between the connecting plate (81) and the outer surface of the screening bin (1).

5. The rice variety winnowing and screening structure according to claim 1, characterized in that: A sieve plate (9) is movably connected inside the screening bin (1), the sieve plate (9) is arranged in an inclined manner, and a vibration motor (10) is fixedly connected to the bottom end of the sieve plate (9).

6. The rice variety winnowing and screening structure according to claim 1, characterized in that: A threaded conveying rod (31) is arranged inside the discharge bin (3); one end of the discharge bin (3) is fixedly connected to a second motor (32); one end of the threaded conveying rod (31) passes through the discharge bin (3) and is fixedly connected to an output end of the second motor (32); the other end of the threaded conveying rod (31) is rotatably connected to an inner wall of the discharge bin (3); and a discharge port (33) is provided on a side of the discharge bin (3) away from the second motor (32).

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