Corn screening and embryo selecting device

Abstract

The utility model relates to a corn sorting technical device, in particular to a corn screening embryo sorting device which comprises a rack, a first-stage screening plate, a second-stage screening plate and a third-stage screening plate are sequentially and obliquely arranged on the rack from top to bottom, a mounting frame is arranged at one end of the rack, a feeding hopper is arranged on the mounting frame, a discharging port of the feeding hopper is connected with a feeding pipe, and a discharging port of the feeding pipe is connected with a discharging port of the discharging pipe. Discharging guide plates are arranged at the ends, away from the feeding hopper, of the first-stage screening plate, the second-stage screening plate and the third-stage screening plate, supporting legs are arranged at the bottom of the rack, vibration springs are connected between the supporting legs and the rack, and a vibration motor is arranged on one side of the rack; airflow cleaning mechanisms and displacement driving mechanisms for driving the airflow cleaning mechanisms to horizontally move are arranged below the first-stage screening plate, the second-stage screening plate and the third-stage screening plate; the airflow cleaning mechanism comprises a base, and a plurality of air nozzles are arranged on the upper surface of the base; according to the utility model, impurities blocked in the screen holes can be cleaned in time, the smoothness of the screen holes is ensured, and the screening efficiency and precision are maintained.

Description

Technical Field

[0001] This utility model relates to a corn sorting technology device, and more specifically to a corn screening and embryo sorting device. Background Technology

[0002] In the corn deep processing industry, corn germ screening is a crucial step. Its purpose is to effectively separate the germ from other parts of the corn to obtain high-purity corn germ for subsequent processing, such as the production of corn oil.

[0003] Most existing corn germ screening devices employ traditional sieve plate screening technology. However, these devices have revealed numerous problems in practical applications. Among them, sieve clogging is particularly prominent. Because corn raw materials contain various impurities, such as corn husks and fragments, these impurities easily adhere to the sieve holes during screening, leading to clogging. Silo clogging not only significantly reduces screening efficiency, slowing down the separation of corn germ and affecting production progress, but also reduces the accuracy of germ selection, resulting in low purity corn germ containing more impurities, thus affecting the quality of subsequent products. Utility Model Content

[0004] The purpose of this invention is to provide a corn screening and germ selection device that can promptly clean impurities clogging the screen holes, ensure unobstructed screen holes, and maintain screening efficiency and accuracy.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A corn screening and germ selection device includes a frame on which a primary screening plate, a secondary screening plate, and a tertiary screening plate are arranged obliquely from top to bottom, with the aperture size of the screening plates decreasing sequentially. A mounting frame is provided at one end of the frame, and a feed hopper is mounted on the mounting frame. A feed pipe is connected to the outlet of the feed hopper. A discharge guide plate is provided at the end of each of the primary, secondary, and tertiary screening plates away from the feed hopper. Support legs are provided at the bottom of the frame, and a vibration spring connects the support legs to the frame. A vibration motor is provided on one side of the frame. An airflow cleaning mechanism and a displacement drive mechanism for driving the airflow cleaning mechanism to move horizontally are provided below each of the primary, secondary, and tertiary screening plates. The airflow cleaning mechanism includes a base, and multiple air nozzles are provided on the upper surface of the base.

[0007] Furthermore, the displacement driving mechanism includes a lead screw rotatably disposed on one side of the frame, a lead screw motor for driving the lead screw to rotate is mounted on the frame, one end of the base is threadedly connected to the lead screw, a guide rod is fixedly disposed on the other side of the frame, and the other end of the base is slidably sleeved on the guide rod.

[0008] Furthermore, the base has a cavity, the air nozzle is connected to the cavity, and a telescopic hose connected to the cavity is provided on one side of the base. The telescopic hose is connected to an external air source.

[0009] Furthermore, the primary screening plate, the secondary screening plate, and the tertiary screening plate are all inclined upwards, and the discharge guide plate is located at the higher end of the primary screening plate, the secondary screening plate, and the tertiary screening plate.

[0010] Furthermore, a flow regulating valve is installed on the feed pipe.

[0011] Furthermore, a protective cover is provided above the frame.

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

[0013] This invention features an airflow cleaning mechanism and a displacement driving mechanism below each screening plate. The airflow cleaning mechanism's nozzles can spray airflow onto the screening plate to promptly remove impurities clogging the screen holes, ensuring unobstructed screen holes and maintaining screening efficiency and accuracy. The displacement driving mechanism enables the airflow cleaning mechanism to move horizontally, expanding the cleaning range and ensuring that all parts of the screening plate are effectively cleaned. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] 1. Frame; 2. Primary screening plate; 3. Secondary screening plate; 4. Tertiary screening plate; 5. Screen holes; 6. Mounting frame; 7. Feed hopper; 8. Feed pipe; 9. Discharge guide plate; 10. Support leg; 11. Vibration spring; 12. Vibration motor; 13. Base; 14. Air nozzle; 15. Lead screw; 16. Lead screw motor; 17. Guide rod; 18. Cavity; 19. Telescopic hose; 20. Flow regulating valve. Detailed Implementation

[0019] like Figures 1 to 4As shown, a corn screening and germ selection device includes a frame 1. A primary screening plate 2, a secondary screening plate 3, and a tertiary screening plate 4 are sequentially arranged at an angle from top to bottom on the frame 1. The aperture 5 of the screens 5 of the primary screening plate 2, secondary screening plate 3, and tertiary screening plate 4 decreases sequentially. A mounting frame 6 is provided at one end of the frame 1, and a feed hopper 7 is provided on the mounting frame 6. A feed pipe 8 is connected to the discharge port of the feed hopper 7. A discharge guide plate 9 is provided at the end of each of the primary screening plate 2, secondary screening plate 3, and tertiary screening plate 4 away from the feed hopper 7. A support leg 10 is provided at the bottom of the frame 1, and a vibration spring 11 is connected between the support leg 10 and the frame 1. A vibration motor 12 is provided on one side of the frame 1. An airflow cleaning mechanism and a displacement drive mechanism for driving the airflow cleaning mechanism to move horizontally are provided below each of the primary screening plate 2, secondary screening plate 3, and tertiary screening plate 4. The airflow cleaning mechanism includes a base 13, and multiple air nozzles 14 are provided on the upper surface of the base 13.

[0020] The displacement driving mechanism includes a lead screw 15 rotatably disposed on one side of the frame 1, a lead screw motor 16 for driving the lead screw 15 to rotate is mounted on the frame 1, one end of the base 13 is threadedly connected to the lead screw 15, a guide rod 17 is fixedly disposed on the other side of the frame 1, and the other end of the base 13 is slidably sleeved on the guide rod 17.

[0021] The base 13 has a cavity 18, and the air nozzle 14 is connected to the cavity 18. A telescopic hose 19 is provided on one side of the base 13, which is connected to the cavity 18 and is connected to an external air source.

[0022] The primary screening plate 2, the secondary screening plate 3, and the tertiary screening plate 4 are all inclined upwards, and the discharge guide plate 9 is located at the higher end of the primary screening plate 2, the secondary screening plate 3, and the tertiary screening plate 4.

[0023] A flow regulating valve 20 is installed on the feed pipe 8.

[0024] A protective cover is installed above the frame 1.

[0025] Working principle:

[0026] Corn enters the feed pipe 8 from the feed hopper 7. After the feed flow rate is controlled by the flow regulating valve 20, it falls onto the primary screening plate 2. The vibrating motor 12 drives the frame 1 and the screen plate to vibrate, causing the corn to flow and tumble on the screen plate. The screen holes 5 of the primary screening plate 2 have a large diameter, which can screen out larger impurities, such as corn cob fragments and long corn husks. Some corn germ, smaller corn kernels, endosperm fragments, and fine impurities will fall through the screen holes 5 to the secondary screening plate 3. The secondary screening plate 3 has a moderate diameter, which further screens out medium-sized impurities, such as some corn husks and slightly larger endosperm fragments. After the secondary screening, the remaining corn germ, smaller endosperm particles, and a small amount of fine impurities will fall to the tertiary screening plate 4. The tertiary screening plate 4 has the smallest diameter, which performs fine screening. At this time, most of the impurities have been separated. This screen plate mainly separates the corn germ from the remaining extremely small endosperm particles and other fine impurities, and finally obtains high-purity corn germ. Throughout the screening process, the base 13, driven by the lead screw motor 16, moves horizontally along the lead screw 15 and guide rod 17. The air nozzle 14 draws airflow from an external air source through the telescopic hose 19 and sprays it onto the screen plate to clear various impurities clogging the screen holes 5, such as corn husk fibers and endosperm powder, ensuring that the screen holes 5 are unobstructed. Different materials after screening, such as impurities screened out at each stage and the final corn germ, are discharged from the corresponding discharge guide plates 9.

[0027] This invention can promptly clear screen hole blockages through an airflow cleaning mechanism and a displacement driving mechanism, ensuring the normal operation of the screen plate, reducing efficiency and accuracy reduction caused by blockages, and improving the stability and reliability of the device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corn kernel and germ separating apparatus, comprising: The utility model provides a three-stage screening device, including frame (1), frame (1) is inclined and is provided with primary screening plate (2), secondary screening plate (3) and tertiary screening plate (4) from top to bottom, the screen hole (5) aperture of primary screening plate (2), secondary screening plate (3) and tertiary screening plate (4) reduces gradually, one end of frame (1) is provided with mounting bracket (6), mounting bracket (6) is provided with feeding hopper (7), the discharge port of feeding hopper (7) is connected with feeding pipe (8), the one end of primary screening plate (2), secondary screening plate (3) and tertiary screening plate (4) away from feeding hopper (7) is provided with discharge guide plate (9), the bottom of frame (1) is equipped with support leg (10), and vibration spring (11) is connected between support leg (10) and frame (1), one side of frame (1) is provided with vibration motor (12), and the below of primary screening plate (2), secondary screening plate (3) and tertiary screening plate (4) are equipped with airflow cleaning mechanism and displacement drive mechanism for driving airflow cleaning mechanism horizontal movement, airflow cleaning mechanism includes base (13), and the upper surface of base (13) is provided with a plurality of air injection nozzle (14).

2. The corn kernel and germ separating apparatus of claim 1 wherein: The displacement drive mechanism includes a lead screw (15) rotatably arranged on one side of the frame (1), a lead screw motor (16) is installed on the frame (1) to drive the rotation of the lead screw (15), one end of the base (13) is threadedly connected with the lead screw (15), and a guide rod (17) is fixedly arranged on the other side of the frame (1), and the other end of the base (13) is slidably sleeved on the guide rod (17).

3. The corn kernel and germ separating apparatus of claim 1 wherein: A cavity (18) is formed in the base (13), the air injection nozzle (14) is in communication with the cavity (18), and a flexible hose (19) is arranged on one side of the base (13) and communicates with the cavity (18).

4. The corn kernel and germ separating apparatus of claim 1 wherein: The primary screening plate (2), the secondary screening plate (3) and the tertiary screening plate (4) are all arranged upwardly inclined, and the discharge guide plate (9) is arranged at the higher end of the primary screening plate (2), the secondary screening plate (3) and the tertiary screening plate (4).

5. The corn kernel and germ separating apparatus of claim 1 wherein: A flow regulating valve (20) is installed on the feeding pipe (8).

6. The corn kernel and germ separating apparatus of claim 1 wherein: A protective cover is arranged above the frame (1).

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