Corn seed screening equipment

Abstract

The utility model discloses corn seed screening equipment, and belongs to the technical field of corn seed screening. The feeding hopper is communicated with the left side of the top of the screening box, the L-shaped channel plate is fixedly connected to the inner wall of the screening box, and through cooperation of the screening box, the feeding hopper, the L-shaped channel plate, an air blower, an embedding groove, an embedding frame and a dust blocking net, corn seeds can be winnowed when falling, and the corn seeds can be screened conveniently. According to the corn seed winnowing device, seeds, abnormal plants and dust with diseases and insect pests can be removed, the seeds, the abnormal plants and the dust are blown into a dust blocking net to be collected, the dust is prevented from polluting the working environment, then through cooperation of a screening channel, a first screening hole, a second screening hole, a third screening hole and a collecting drawer, the winnowed corn seeds can be screened from small to large in sequence, and the screening efficiency is improved. And the corn seeds are collected respectively, so that the corn seeds with different grain shapes and sizes are prevented from being mixed together, and the phenomenon of irregular seedling emergence caused by different sizes of the seeds can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of corn seed screening technology, specifically a corn seed screening device. Background Technology

[0002] To improve the survival rate of corn planting, plump corn kernels are usually selected for cultivation. Screening equipment is usually used to screen a large number of corn kernels when selecting corn seeds. A search revealed a corn seed screening device disclosed in Chinese patent application number 202321554688.9. This patent includes a housing with a sliding plate slidably connected inside. A sieve plate is fixedly connected to one end of the sliding plate. A sleeve is fixedly connected inside the housing. A rotating rod is rotatably connected to the inner wall of the housing. A rotating plate is fixedly connected to the circumferential surface of one end of the rotating rod. The lower surfaces of both the rotating plate and the sleeve are in contact with the lower surface of the sieve plate, and one end of the rotating plate is in contact with the inner circumferential surface of the sleeve. One end of the sieve plate has an inclined surface. A transmission mechanism is provided on one side of the housing. The rotating rod drives the sliding plate to reciprocate through the transmission mechanism. The transmission mechanism includes a motor fixedly connected to one side of the housing. A cam is fixedly connected to the output end of the motor, and the circumferential surface of the cam is in contact with one end of the sleeve. This patent facilitates the cleaning of impurities above the sieve plate, preventing impurities from clogging the filter holes and affecting screening efficiency, and effectively reducing the problem of subsequent cleaning of impurities above the sieve plate by workers.

[0003] While the aforementioned patent facilitates the cleaning of impurities above the sieve plate to prevent clogging of the filter holes and thus reduce the problem of workers cleaning impurities above the sieve plate, in actual use, the patent cannot classify corn seeds by size, causing corn seeds of different sizes to be mixed together, requiring additional separation later. Selecting corn seeds of uniform size can ensure consistent germination time and avoid uneven germination caused by different seed sizes.

[0004] Therefore, the corn seed screening equipment in the aforementioned patent needs to be modified to effectively prevent corn seeds of different sizes from being mixed together after screening, thus avoiding the need for additional separation in the future. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a corn seed screening device that solves the problem of corn seeds of different sizes being mixed together after screening, requiring additional separation in the subsequent process, and also prevents dust from contaminating the working environment.

[0006] This utility model provides the following technical solution: a corn seed screening device, including a screening box, a feeding hopper connected to the left side of the top of the screening box, an L-shaped channel plate fixedly connected to the inner wall of the screening box, a ventilation opening on one side of the L-shaped channel plate, the ventilation opening cooperating with the feeding hopper, a dust discharge port on the top right side of the screening box, the dust discharge port communicating with the L-shaped channel plate, a pressure relief port on the upper left side of the screening box, and blowers symmetrically fixedly connected to the top of the L-shaped channel plate, the blowers cooperating with the dust discharge port, an embedding groove on the top of the dust discharge port, the embedding groove... An embedded frame is snapped into the inside of the slot, and a dust-blocking net is fixedly connected to the outside of the embedded frame. A screening channel is fixedly connected to the inner wall of the screening box, and the screening channel is inclined. Several first screening holes, second screening holes, and third screening holes are respectively opened from left to right at the bottom of the screening channel, and the several first screening holes, second screening holes, and third screening holes are arranged in a uniform array. Three sliding openings are opened on the front of the screening box, and the three sliding openings are respectively located directly below the first screening holes, second screening holes, and third screening holes and are configured to cooperate with them. A collection drawer is slidably connected inside the sliding opening.

[0007] The beneficial effects of this utility model are as follows:

[0008] 1. This utility model, through the combination of a screening box, a feeding hopper, an L-shaped channel plate, a blower, an embedded groove, an embedded frame, and a dust-blocking net, can perform air separation on falling corn seeds, removing seeds with pests and diseases, weeds, and dust, which are then blown into the dust-blocking net for collection, preventing dust from polluting the working environment. Then, through the combination of the screening channel, the first screening hole, the second screening hole, the third screening hole, and the collection drawer, the air-separated corn seeds can be screened sequentially from small to large and collected separately, avoiding the mixing of corn seeds of different sizes, thereby reducing the phenomenon of uneven germination caused by different seed sizes.

[0009] 2. This utility model, through the arrangement of a rotating shaft, a rotating motor, and stirring blades, can generate a rotating and shaking motion on the corn seeds in the screening channel, thereby assisting the corn seeds to pass through the screen quickly and improving the screening rate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model from the right side.

[0012] Figure 3 This is a partial cross-sectional perspective view of the structure of this utility model.

[0013] Figure 4This is a partial cross-sectional three-dimensional schematic diagram of the screening channel and stirring blades used in this utility model.

[0014] Figure 5 This is a three-dimensional schematic diagram showing the combination of the rotating shaft and the stirring blade of this utility model.

[0015] Figure 6 This utility model Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 6 As shown, the corn seed screening device in this embodiment includes a screening box 1. A feed hopper 2 is connected to the left side of the top of the screening box 1. An L-shaped channel plate 3 is fixedly connected to the inner wall of the screening box 1. A ventilation opening is provided on one side of the L-shaped channel plate 3, and the ventilation opening is configured to cooperate with the feed hopper 2. A dust discharge port is provided at the top right side of the screening box 1, and the dust discharge port is connected to the L-shaped channel plate 3. A pressure relief port is provided at the top left side of the screening box 1, and a replaceable dustproof net (not shown) is fixedly connected inside the pressure relief port. A blower 4 is symmetrically fixedly connected to the top of the L-shaped channel plate 3, and the blower 4 is configured to cooperate with the dust discharge port. An embedding groove 5 is provided at the top of the dust discharge port, and an embedding frame 6 is snapped into the inside of the embedding groove 5. A dust-blocking net 7 is fixedly connected to the side. A screening channel 8 is fixedly connected to the inner wall of the screening box 1. The screening channel 8 is inclined. Several first screening holes 9, second screening holes 10 and third screening holes 11 are opened from left to right at the bottom of the screening channel 8. The several first screening holes 9, second screening holes 10 and third screening holes 11 are arranged in a uniform array. Three sliding openings are opened on the front of the screening box 1. The three sliding openings are located directly below the first screening holes 9, second screening holes 10 and third screening holes 11 and are arranged to cooperate with them. A collection drawer 12 is slidably connected inside the sliding opening. A control panel is set on the front of the screening box 1. The control panel is electrically connected to the various electrical components of the device.

[0018] refer to Figure 3 , Figure 4 and Figure 5 The screening channel 8 is equipped with a rotating shaft 13, and the two ends of the rotating shaft 13 are rotatably connected to the screening box 1 through bearings. One end of the rotating shaft 13 passes through the screening box 1 and is fixedly connected to a rotating motor 14. The bottom of the rotating motor 14 is fixedly connected to the screening box 1 through a support plate. Multiple stirring blades 15 are fixedly connected to the surface of the rotating shaft 13. The multiple stirring blades 15 are evenly arranged and are respectively matched with the first screening hole 9, the second screening hole 10 and the third screening hole 11.

[0019] In this embodiment, the arrangement of the rotating shaft 13, the rotating motor 14, and the stirring blade 15 can generate a rotating vibration in the corn seeds in the screening channel 8, thereby assisting the corn seeds to pass through the screen quickly and improving the screening rate.

[0020] refer to Figure 1 , Figure 2 and Figure 3 A sealing port 16 is provided on the right side of the feed hopper 2. A sealing plate 17 is slidably connected inside the sealing port 16. An electric push rod 18 is fixedly connected to the top of the screening box 1, and the output end of the electric push rod 18 is fixedly connected to the sealing plate 17. Limiting blocks 19 are symmetrically fixedly connected to the bottom of the sealing plate 17. Limiting grooves 20 are symmetrically fixedly connected to the top of the screening box 1 about the electric push rod 18, and the inner wall of the limiting grooves 20 is slidably connected to the limiting blocks 19.

[0021] This embodiment, through the setting of sealing port 16, sealing plate 17, electric push rod 18, limiting block 19 and limiting groove 20, can seal the feed hopper 2 when the device is not in use, thereby reducing dust and impurities from entering the screening box 1.

[0022] refer to Figure 1 and Figure 3 A partition 21 is provided between every two collection drawers 12, and the bottom of the partition 21 is fixedly connected to the screening box 1. Three weighing devices 22 are fixedly connected to the bottom of the inner wall of the screening box 1, and the three weighing devices 22 are respectively matched with the three collection drawers 12. Three counters 23 are provided on the front of the screening box 1, and the three counters 23 correspond one-to-one with the three weighing devices 22 and are electrically connected to them.

[0023] This embodiment uses the partition 21, the weighing device 22 and the counter 23 to weigh the corn seeds in the collection drawer 12, thereby determining whether the collection drawer 12 has been completely collected, so that the collection drawer 12 can be replaced in the future.

[0024] refer to Figure 2 and Figure 6 The wall of the embedded groove 5 is symmetrically provided with auxiliary grooves 24. A spring 25 is fixedly connected inside the auxiliary groove 24. A T-shaped abutment 26 is fixedly connected to the other end of the spring 25. The T-shaped abutment 26 is slidably connected to the auxiliary groove 24 and is set to cooperate with the embedded frame 6.

[0025] In this embodiment, the auxiliary groove 24, spring 25 and T-shaped stop block 26 are used to restrict the movement trajectory of the embedded frame 6, making it unable to move within the embedded groove 5, thereby improving the stability of the dustproof net 7 during use.

[0026] refer to Figure 1 and Figure 2 A material inlet is provided on the right side of the screening box 1. A baffle 27 is fixedly connected to the outside of the material inlet. A drop outlet is provided at the bottom of the baffle 27. L-shaped support strips 28 are fixedly connected symmetrically on both sides of the bottom of the baffle 27 with respect to the drop outlet. A collection box 29 is slidably connected inside the L-shaped support strips 28.

[0027] This embodiment, through the setting of the material inlet, baffle 27, L-shaped support strip 28 and collection box 29, can centrally collect high-quality and plump corn seeds larger than the third screening hole 11.

[0028] This invention uses a control panel to activate the electric push rod 18, causing the sealing plate 17 to slide outwards. Then, the blower 4 and rotary motor 14 are activated, feeding corn seeds into the feed hopper 2. The corn seeds fall under gravity, and as they pass through the L-shaped channel plate 3, the blower 4 creates negative pressure at the vents, allowing for air separation of the falling seeds. This removes diseased seeds, pests, weeds, and dust, blowing them into the dust-blocking net 7 for collection, thus preventing dust pollution of the working environment. For subsequent cleaning or replacement of the dust-blocking net 7, simply press the T-shaped stop block 26 to retract it into the auxiliary slot 24, and then pull up the embedded frame 6 to remove both the embedded frame 6 and the dust-blocking net 7. The dust-blocking net 7 can be cleaned or replaced, and then the corn seeds after wind separation fall into the screening channel 8. They are then screened step by step from small to large through the first screening hole 9, the second screening hole 10, and the third screening hole 11. They fall into the collection drawer 12 according to their size for centralized collection. High-quality and plump corn seeds larger than the third screening hole 11 fall into the baffle 27 through the material outlet and then into the collection box 29 through the drop outlet for centralized collection. This can achieve the sequential screening of corn seeds from small to large and their separate collection, avoiding the mixing of corn seeds of different sizes, thereby reducing the phenomenon of uneven germination caused by different seed sizes.

Claims

1. A corn seed screening device, comprising a screening box (1), characterized in that: The top left side of the screening box (1) is connected to the feed hopper (2). The inner wall of the screening box (1) is fixedly connected to an L-shaped channel plate (3). A ventilation port is opened on one side of the L-shaped channel plate (3), and the ventilation port is configured to cooperate with the feed hopper (2). A dust discharge port is opened on the top right side of the screening box (1), and the dust discharge port is connected to the L-shaped channel plate (3). A pressure relief port is opened on the upper left side of the screening box (1). A blower (4) is symmetrically fixedly connected to the top of the L-shaped channel plate (3), and the blower (4) is configured to cooperate with the dust discharge port. An embedding groove (5) is opened on the top of the dust discharge port. An embedding frame (6) is snapped into the inside of the embedding groove (5). The outer side of the embedding frame (6) is... A dust-blocking net (7) is fixedly connected to the side. A screening channel (8) is fixedly connected to the inner wall of the screening box (1). The screening channel (8) is inclined. Several first screening holes (9), second screening holes (10) and third screening holes (11) are opened from left to right at the bottom of the screening channel (8). Several first screening holes (9), second screening holes (10) and third screening holes (11) are arranged in a uniform array. Three sliding openings are opened on the front of the screening box (1). The three sliding openings are located directly below the first screening hole (9), second screening hole (10) and third screening hole (11) and are arranged in cooperation with them. A collection drawer (12) is slidably connected inside the sliding opening.

2. The corn seed screening device according to claim 1, characterized in that: The screening channel (8) is provided with a rotating shaft (13), and the two ends of the rotating shaft (13) are rotatably connected to the screening box (1) through bearings. One end of the rotating shaft (13) passes through the screening box (1) and is fixedly connected to a rotating motor (14). The bottom of the rotating motor (14) is fixedly connected to the screening box (1) through a support plate. Multiple stirring blades (15) are fixedly connected to the surface of the rotating shaft (13), and the multiple stirring blades (15) are evenly arranged and are respectively matched with the first screening hole (9), the second screening hole (10) and the third screening hole (11).

3. The corn seed screening device according to claim 2, characterized in that: A sealing port (16) is provided on the right side of the feed hopper (2). A sealing plate (17) is slidably connected inside the sealing port (16). An electric push rod (18) is fixedly connected to the top of the screening box (1). The output end of the electric push rod (18) is fixedly connected to the sealing plate (17). A limiting block (19) is symmetrically fixedly connected to the bottom of the sealing plate (17). A limiting groove (20) is symmetrically fixedly connected to the top of the screening box (1) about the electric push rod (18). The inner wall of the limiting groove (20) is slidably connected to the limiting block (19).

4. The corn seed screening device according to claim 3, characterized in that: A partition (21) is provided between each pair of collection drawers (12), and the bottom of the partition (21) is fixedly connected to the screening box (1). Three weighing devices (22) are fixedly connected to the bottom of the inner wall of the screening box (1), and the three weighing devices (22) are respectively matched with the three collection drawers (12). Three counters (23) are provided on the front of the screening box (1), and the three counters (23) correspond one-to-one with the three weighing devices (22) and are electrically connected to them.

5. The corn seed screening device according to claim 4, characterized in that: The wall of the embedded groove (5) is symmetrically provided with auxiliary grooves (24). A spring (25) is fixedly connected inside the auxiliary groove (24). A T-shaped abutment (26) is fixedly connected to the other end of the spring (25). The T-shaped abutment (26) is slidably connected to the auxiliary groove (24) and is set to cooperate with the embedded frame (6).

6. The corn seed screening device according to claim 5, characterized in that: The screening box (1) has a material inlet on the right side. A baffle (27) is fixedly connected to the outside of the material inlet. A drop opening is opened at the bottom of the baffle (27). L-shaped support strips (28) are fixedly connected symmetrically on both sides of the bottom of the baffle (27) with respect to the drop opening. A collection box (29) is slidably connected inside the L-shaped support strips (28).

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