Efficient screening device for corn variety breeding

Abstract

The utility model discloses an efficient screening device for corn variety breeding, relates to the technical field of corn variety screening, and aims to solve the problems that when wind power is used for screening corn seeds in the prior art, some light impurities are beaten on an air outlet screen plate under the action of the wind power, and are difficult to naturally fall down due to the transverse acting force of airflow, so that the screening efficiency is high. In order to solve the problem that air is difficult to be discharged out normally due to the fact that the air outlet is provided with a complex bent flow channel and the special shapes of a second flow guide cover and a first flow guide cover are utilized, intercepted impurities can be guided to a first impurity storage box at the bottom of the first flow guide cover to be stored uniformly, so that the air outlet is prevented from being blocked by the second flow guide cover and the first flow guide cover. Impurities carried by the air flow cannot directly act on the air outlet holes, the impurities can be effectively prevented from being tightly attached to the filter plate and not prone to falling under the action of wind power, then the air outlet can be prevented from being blocked, the air outlet does not need to be cleaned and dredged frequently, and the daily maintenance workload of operators is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of corn variety screening, specifically to a high -efficient screening device for corn variety selection. BACKGROUND

[0002] The screening can remove damaged, shriveled or poorly developed seeds. These defective seeds often have a low germination rate. For example, shriveled seeds may not have accumulated sufficient nutrients during development, and the endosperm or cotyledon inside the seed cannot provide enough energy and nutrients for seed germination, resulting in difficulty in germination. The full seeds obtained by screening contain sufficient nutrients and can provide a good material basis for seed germination, greatly improving the germination rate and ensuring sufficient seedling number in the field.

[0003] In Chinese patent CN210847171U, the utility model discloses a sweet corn seed wind screening device, which belongs to the technical field of grain processing equipment. The first separation chamber, the second separation chamber and the negative pressure chamber are arranged inside the utility model. The first fan is arranged on the outside of the first separation chamber, and the first discharge port is arranged at the bottom of the first separation chamber. The second fan and the second discharge port are arranged at the bottom of the second separation chamber. The full sweet corn seeds are separated in the first separation chamber, and the underfilled sweet corn seeds are separated in the second separation chamber. The utility model increases the function of separating underfilled sweet corn seeds, avoids the waste of resources, and at the same time, the second discharge port is arranged at the bottom of the second separation chamber. The mixture of underfilled sweet corn seeds and impurities can be more fully separated, increasing the efficiency of the utility model in screening sweet corn seeds.

[0004] The existing corn seed screening device uses wind power to screen corn seeds. The filter screen is usually arranged at the position of the air outlet to prevent impurities from leaking out. The flow direction of the airflow is directly towards the filter screen. Under the action of the wind force, some light impurities may be hit on the filter screen and be difficult to fall naturally downward due to the transverse force of the airflow, causing blockage on the filter plate, making it difficult for the wind force to be normally discharged outward, and affecting the pressure balance inside the device.

[0005] In view of the above problems, a high-efficiency screening device for corn variety selection is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a high-efficiency screening device for corn variety selection, which solves the problem that impurities are pressed on the filter screen by the wind force, affecting the airflow circulation.

[0007] To achieve the above object, the utility model provides the following technical scheme: A kind of high-efficiency screening device for corn variety selection, including screening device shell, the right side of the screening device shell is equipped with fan, and the left side of the screening device shell is equipped with air outlet component, the air outlet component includes air outlet plate support frame, and it is fixedly connected between air outlet plate support frame and screening device shell, the side of air outlet plate support frame is fixedly connected with air outlet hole plate, and air outlet hole plate is internally provided with air outlet hole at equal intervals, the side of the air outlet hole is covered with first flow guide cover, and the connecting mode between first flow guide cover and air outlet hole plate is fixed connection, the outside of first flow guide cover is nested with second flow guide cover, and the connecting mode between second flow guide cover and air outlet hole plate is fixed connection.

[0008] Preferably, the inside of the screening device shell is provided with a vibrating screening assembly, the vibrating screening assembly includes a silica gel connecting piece, and the silica gel connecting piece is fixedly connected to the inner wall of the screening device shell, the inside of the silica gel connecting piece is fixedly connected with a screening mesh plate, and the screening mesh plate is inclinedly arranged, and the bottom of the screening mesh plate is provided with a vibrator.

[0009] Preferably, the shapes of the first flow guide cover and the second flow guide cover are both semi-bowl-shaped, the opening of the first flow guide cover faces upward, and the opening of the second flow guide cover faces downward.

[0010] Preferably, the bottom of the air outlet plate support frame is fixedly connected with a support cabinet, the inside of the support cabinet is nested with a first impurity storage box, and the first impurity storage box is slidingly connected with the support cabinet.

[0011] Preferably, the lower end of the screening mesh plate is provided with a cover, the cover is fixedly connected with the screening device shell, the bottom of the cover is provided with a corn seed storage box, the connection relationship between the corn seed storage box and the screening device shell is gap fit, the bottom of the vibrator is provided with a second impurity storage box, and the second impurity storage box is slidingly connected in the inside of the screening device shell.

[0012] Preferably, the top of the screening device shell is provided with a feeding assembly, the feeding assembly includes a discharging channel, the discharging channel is fixedly connected with the screening device shell, and the discharging channel is in communication with the inner cavity of the screening device shell.

[0013] Preferably, the top of the discharging channel is fixedly connected with a distributing cylinder, the distributing cylinder is in communication with the discharging channel, the outer wall of the distributing cylinder is provided with a servo motor, the output end of the servo motor is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the distributing cylinder, the outer wall of the rotating shaft is weldedly connected with an agitating rod, the top of the distributing cylinder is fixedly connected with a feeding box, and the feeding box is in communication with the distributing cylinder.

[0014] Preferably, the front part of the screening device shell is symmetrically provided with two groups of transparent door plates, and the transparent door plates are rotationally connected with the screening device shell.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] The efficient screening device for corn variety breeding is provided, the complex bending flow channel is arranged at the air outlet, the particulate matters in the airflow are intercepted, the impurities are prevented from being discharged outward, the pollution of the external air in the screening process can be reduced, the second flow guide cover and the first flow guide cover are used, the impurities are guided to the first impurity storage box at the bottom for unified storage, after the screening is finished, the screened impurities can be directly uniformly treated, the work flow is reduced, the operation is more simple and convenient, the airflow carrying the impurities cannot directly act on the air outlet hole, the impurities cannot be tightly attached to the filter plate and cannot easily fall under the action of the wind force, the air outlet is prevented from being blocked, the air outlet does not need to be cleaned and dredged frequently, and the work amount of the daily maintenance of the operating workers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the whole open state of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic diagram of the whole sealed state of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic diagram of the air outlet assembly part of the utility model;

[0020] Figure 4 It is a sectional structure schematic diagram of the feeding assembly part of the utility model;

[0021] Figure 5 It is a three-dimensional structure schematic diagram of the vibration screening assembly part of the utility model;

[0022] Figure 6 It is a sectional structure schematic diagram of the air outlet hole part of the utility model.

[0023] In the figure: 1, screening device shell; 2, fan; 3, air outlet assembly; 4, vibrating screening assembly; 5, feeding assembly; 6, transparent door plate; 301, air outlet plate support frame; 302, air outlet hole plate; 303, air outlet hole; 304, first flow guide cover; 305, second flow guide cover; 306, support cabinet; 307, first impurity storage box; 401, silica gel connecting piece; 402, screening mesh plate; 403, vibrator; 404, second impurity storage box; 405, cover; 406, corn seed storage box; 501, discharging channel; 502, material distribution cylinder; 503, servo motor; 504, rotating shaft; 505, stirring rod; 506, feeding box. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 labor fall within the scope of protection of the present application.

[0025] In order to further understand the content of the present application, the present application will be described in detail in combination with the drawings.

[0026] Embodiment one

[0027] Please refer to Figures 1 to 6 The present application discloses a high-efficiency screening device for corn variety breeding, which comprises a screening device shell 1, a fan 2 is installed on the right side of the screening device shell 1, and an air outlet assembly 3 is installed on the left side of the screening device shell 1. The air outlet assembly 3 comprises an air outlet plate support frame 301, which is fixedly connected with the screening device shell 1. The air outlet plate support frame 301 is fixedly connected with an air outlet hole plate 302 on the side, and the air outlet hole plate 302 is internally provided with air outlet holes 303 at equal intervals. The air outlet holes 303 are covered with a first flow guide cover 304 on the side, and the first flow guide cover 304 is fixedly connected with the air outlet hole plate 302. The first flow guide cover 304 and the second flow guide cover 305 are both in the shape of a half-bowl, the opening of the first flow guide cover 304 faces upwards, and the opening of the second flow guide cover 305 faces downwards. The bottom of the air outlet plate support frame 301 is fixedly connected with a support cabinet 306, and the support cabinet 306 is internally nested with a first impurity storage box 307, which is slidingly connected with the support cabinet 306.

[0028] When screening, the corn kernels fall downward to the inside of the screening device shell 1 through the feeding assembly 5, the fan 2 provides wind power, blows the falling corn kernels, blows some impurities and dry corn kernels with lighter quality to the direction of the air outlet hole plate 302, the airflow carries the impurities and first hits the second flow guide cover 305, under the action of gravity, part of the particles fall into the first impurity storage box 307 below along the outer surface of the second flow guide cover 305, the airflow carries the remaining impurities and continues to drill into the bottom opening of the second flow guide cover 305, is blocked by the first flow guide cover 304, and the impurities fall into the first impurity storage box 307 below again, only the airflow can bypass the bent channel, enter from the opening at the top of the first flow guide cover 304, and be discharged outward from the air outlet hole 303, by improving the exhaust channel, the tortuosity of the airflow when being discharged outward is increased, in the process of multiple turns of the airflow, the arc surfaces of the second flow guide cover 305 and the first flow guide cover 304 are used to block the particles and guide them downward to the inside of the first impurity storage box 307 for unified storage, which is convenient for subsequent processing and also prevents the impurities from directly sticking to the air outlet hole plate 302 to block the air outlet hole 303.

[0029] The inside of the screening device shell 1 is provided with a vibrating screening assembly 4, the vibrating screening assembly 4 includes a silica gel connecting piece 401, and the silica gel connecting piece 401 is fixedly connected to the inner wall of the screening device shell 1, a screening mesh plate 402 is fixedly connected inside the silica gel connecting piece 401, the screening mesh plate 402 and the inner wall of the screening device shell 1 constitute a flexible connection through the silica gel connecting piece 401, so as to conveniently ensure that the screening mesh plate 402 can normally vibrate, the screening mesh plate 402 is provided in an inclined manner, a vibrator 403 is installed at the bottom of the screening mesh plate 402, a cover 405 is arranged at the lower end of the screening mesh plate 402, and the cover 405 and the screening device shell 1 are fixedly connected, a corn seed storage box 406 is arranged at the bottom of the cover 405, and the corn seed storage box 406 and the screening device shell 1 are in a clearance fit, and a second impurity storage box 404 is arranged at the bottom of the vibrator 403 and is slidingly connected to the inside of the screening device shell 1.

[0030] After the corn kernels are subjected to the initial screening by the wind, the corn kernels fall downward above the screening mesh plate 402, the vibrator 403 vibrates with the screening mesh plate 402, and the corn kernels on the top are screened, part of the corn kernels with defects or small particles can fall into the second impurity storage box 404 below through the holes of the screening mesh plate 402 and be stored, and the remaining corn kernels with large particles and fullness can be gradually sent into the corn seed storage box 406 through the cover 405 along the inclined screening mesh plate 402 in the vibration and be stored in the corn seed storage box 406.

[0031] The top of the screening device shell 1 is provided with a feeding assembly 5, the feeding assembly 5 comprises a feeding channel 501, and the feeding channel 501 is fixedly connected with the screening device shell 1, the feeding channel 501 is communicated with the inner cavity of the screening device shell 1, the top of the feeding channel 501 is fixedly connected with a distributing cylinder 502, and the distributing cylinder 502 is communicated with the feeding channel 501, a servo motor 503 is installed on the outer wall of the distributing cylinder 502, the output end of the servo motor 503 is fixedly connected with a rotating shaft 504, and the rotating shaft 504 is rotatably connected with the distributing cylinder 502, a stirring rod 505 is welded on the outer wall of the rotating shaft 504, the top of the distributing cylinder 502 is fixedly connected with a feeding box 506, and the feeding box 506 is communicated with the distributing cylinder 502.

[0032] During screening, the corn material is put into the inside of the feeding box 506, the servo motor 503 drives the stirring rod 505 to stir in the inside of the distributing cylinder 502 through the rotating shaft 504, the bottommost corn kernels are scattered, and the corn kernels fall into the inside of the screening device shell 1 below through the feeding channel 501 to be screened.

[0033] The front part of the screening device shell 1 is symmetrically provided with two groups of transparent door plates 6, and the transparent door plates 6 are rotatably connected with the screening device shell 1, the transparent door plates 6 are made of transparent materials, so that the operator can see the screening condition in the inside of the screening device shell 1 through the transparent door plates 6, and the transparent door plates 6 can be rotatably opened, when the inside of the screening device is blocked or other problems occur, the inside can be cleaned by opening the transparent door plates 6.

[0034] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency screening device for maize variety breeding, characterized in that: Including the screening device shell (1), the right side of the screening device shell (1) is provided with a fan (2), and the left side of the screening device shell (1) is provided with an air outlet assembly (3), the air outlet assembly (3) comprises an air outlet plate support frame (301), and the air outlet plate support frame (301) and the screening device shell (1) are fixedly connected, the side of the air outlet plate support frame (301) is fixedly connected with an air outlet hole plate (302), and the inside of the air outlet hole plate (302) is provided with air outlet holes (303) at equal intervals, the side of the air outlet hole (303) is covered with a first flow guide cover (304), and the first flow guide cover (304) and the air outlet hole plate (302) are fixedly connected, the outside of the first flow guide cover (304) is nested with a second flow guide cover (305), and the second flow guide cover (305) and the air outlet hole plate (302) are fixedly connected; The inside of the screening device shell (1) is provided with a vibrating screening assembly (4), the vibrating screening assembly (4) comprises a silica gel connecting piece (401), and the silica gel connecting piece (401) is fixedly connected to the inner wall of the screening device shell (1), the inside of the silica gel connecting piece (401) is fixedly connected with a screening mesh plate (402), and the screening mesh plate (402) is inclinedly arranged, and the bottom of the screening mesh plate (402) is provided with a vibrator (403).

2. The high-efficiency screening device for corn variety selection according to claim 1, characterized in that: The shapes of the first flow guide cover (304) and the second flow guide cover (305) are both half-bowl-shaped, the opening of the first flow guide cover (304) faces upward, and the opening of the second flow guide cover (305) faces downward.

3. The high efficiency screening device for corn variety selection according to claim 1, characterized in that: The bottom of the air outlet plate support frame (301) is fixedly connected with a support cabinet (306), the inside of the support cabinet (306) is nested with a first impurity storage box (307), and the first impurity storage box (307) and the support cabinet (306) are slidably connected.

4. The high efficiency screening device for corn variety selection according to claim 1, wherein: The lower end of the screening mesh plate (402) is provided with a cover (405), the cover (405) and the screening device shell (1) are fixedly connected, the bottom of the cover (405) is provided with a corn seed storage box (406), the corn seed storage box (406) and the screening device shell (1) are connected in a clearance fit, and the bottom of the vibrator (403) is provided with a second impurity storage box (404), and the second impurity storage box (404) is slidably connected in the inside of the screening device shell (1).

5. The high efficiency screening device for corn variety selection according to claim 1, wherein: The top of the screening device shell (1) is provided with a feeding assembly (5), the feeding assembly (5) comprises a feeding channel (501), and the feeding channel (501) and the screening device shell (1) are fixedly connected, and the feeding channel (501) is communicated with the inner cavity of the screening device shell (1).

6. The high efficiency screening device for corn variety selection according to claim 5, characterized in that: The top of the blanking channel (501) is fixedly connected with a distributing cylinder (502), and the distributing cylinder (502) is communicated with the blanking channel (501), the outer wall of the distributing cylinder (502) is provided with a servo motor (503), the output end of the servo motor (503) is fixedly connected with a rotating shaft (504), and the rotating shaft (504) is rotatably connected with the distributing cylinder (502), the outer wall of the rotating shaft (504) is welded with an agitating rod (505), and the top of the distributing cylinder (502) is fixedly connected with a feeding box (506), and the feeding box (506) is communicated with the distributing cylinder (502).

7. The high efficiency screening device for corn variety selection according to claim 1, wherein: The front part of the screening device shell (1) is symmetrically provided with two groups of transparent door plates (6), and the transparent door plates (6) are rotatably connected with the screening device shell (1).

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