A screening device for corn breeding pellets
By using components such as the extrusion column and hydraulic cylinder in the anti-blocking mechanism, the problem of sieve clogging in corn breeding devices is solved, achieving efficient and orderly corn kernel screening and collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUIHUA UNIV
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-28
AI Technical Summary
In existing corn breeding equipment, the irregular shape of corn kernels causes the sieve holes to become clogged during the screening process, which affects the screening efficiency and effect.
An anti-clogging mechanism is adopted, including components such as a limit frame, an extrusion column, a hydraulic cylinder, and a servo motor. The extrusion column rotates inside the screen barrel to clear blockages, and the screening process is controlled by the hydraulic cylinder and the servo motor to ensure orderly conveying and collection of particles.
It effectively prevents screen clogging, improves screening efficiency, ensures accurate collection of corn kernels of different sizes, and achieves an efficient and orderly screening process.
Smart Images
Figure CN224559220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to corn breeding, specifically a screening device for corn breeding pellets, belonging to the field of screening technology. Background Technology
[0002] Corn seeds are reproductive organisms capable of growing into mature corn plants. They are formed from ovules through pollination and fertilization. A corn seed consists of three parts: the seed coat, the embryo, and the endosperm. Corn seeds are classified into large, medium, and small kernels according to their size to facilitate uniform emergence and growth during subsequent sowing. Before planting, corn seeds are screened to distinguish superior varieties and ensure the excellent results of corn seed breeding.
[0003] Chinese Patent Publication CN220804415U discloses a corn seed screening device for agricultural breeding. A sieve plate is provided below the diversion plate. Small seeds are screened through the screening holes of the upper sieve plate and fall onto the lower sieve plate. At the same time, the seeds that fall onto the sieve plate are screened by the up-and-down swing and the interception of the baffle plate. Then, the corn flows into the collection frame for collection, which solves the problem of corn seed accumulation during screening.
[0004] The aforementioned patented technology uses a sieve plate that swings up and down to perform sieving. However, due to the irregular shape of the corn and the fact that the device only uses simple up-and-down swinging and interception for sieving, the sieving holes of the sieve plate are easily clogged, resulting in poor sieving effect. Therefore, a sieving device for corn breeding grains is proposed here. Utility Model Content
[0005] This invention proposes a screening device for corn breeding grains to solve the problem of corn grains clogging due to their different sizes during screening in the prior art.
[0006] This utility model is achieved through the following technical solution: a screening device for corn breeding pellets, including a box, wherein an anti-blocking mechanism is provided inside the box; The anti-blocking mechanism includes a limiting frame, a fixing block fixedly connected to the upper surface of the limiting frame, a power motor fixedly connected to the upper surface of the fixing block, a gear fixedly installed at the output end of the power motor, a screen barrel meshing with the outer surface of the gear, four rotating wheels rotatably connected to the outer surface of the limiting frame, each rotating wheel's outer surface contacting the outer surface of the screen barrel, two limiting rods fixedly connected to one end of the limiting frame near the housing, a squeezing column rotatably connected to the inner walls of the two limiting rods, two first limiting posts rotatably connected to the inner wall of the limiting frame, the bottom surface of each first limiting post fixedly connected to the inner bottom wall of the housing, two second limiting posts fixedly connected to the inner bottom wall of the housing, the inner wall of each second limiting post contacting the outer surface of the limiting frame, and a first hydraulic cylinder rotatably connected to the inner bottom wall of the housing, the telescopic end of the first hydraulic cylinder rotatably connected to the bottom surface of the limiting frame. The box is equipped with a swing assembly inside, a feeding assembly on the outside of the box, and a collecting assembly inside the box.
[0007] The swing assembly includes a fixed frame, the back of which is fixedly connected to the front of a limiting frame. A second semicircular plate is rotatably connected to the outer surface of the fixed frame. A second hydraulic cylinder is fixedly connected to the back of the fixed frame. The telescopic end of the second hydraulic cylinder is rotatably connected to the inner wall of the second semicircular plate. A third hydraulic cylinder is fixedly connected to the back of the fixed frame. A first semicircular plate is rotatably connected to the outer surface of the fixed frame. The telescopic end of the third hydraulic cylinder is rotatably connected to the front of the first semicircular plate. The outer surfaces of both the first and second semicircular plates are in contact with the inner wall of the screen barrel.
[0008] The unloading assembly includes a servo motor, the front of which is fixedly connected to the back of the housing. A threaded rod is fixedly connected to the output end of the servo motor, and a movable plate is threadedly connected to the outer surface of the threaded rod. A collection frame is fixedly connected to the inner wall of the housing, and the inner wall of the collection frame is slidably connected to the outer surface of the movable plate.
[0009] The collection assembly includes a support column, the bottom surface of which is fixedly connected to the inner bottom wall of the box, a diversion plate is fixedly connected to the upper surface of the support column, and a flow guide barrel is fixedly connected to the front of the fixed frame.
[0010] A support rod is fixedly connected to the upper surface of the limiting frame, and a support plate is fixedly connected to the front of the support rod. The outer surface of the support plate is in contact with the inner wall of the screen barrel.
[0011] The box is equipped with four receiving boxes inside, and the outer surface of each receiving box is slidably connected to the inner wall of the box.
[0012] This utility model provides a screening device for corn breeding pellets, which has the following beneficial effects: 1. This corn breeding grain screening device uses an extrusion column to squeeze the corn breeding grains in the screening barrel during the screening process. Combined with the coordinated operation of a power motor and gears, it prevents corn grains from getting stuck in the screen holes of the screening barrel due to their irregular shape, effectively avoiding the problem of screen hole blockage. Since the screening barrel drives the extrusion column to rotate at the same time, when corn grains block the screening barrel, the extrusion column can promptly squeeze and clear the blockage, ensuring the continuous and efficient screening work and improving screening efficiency.
[0013] 2. This corn breeding grain screening device features a unique design that integrates components such as a fixed frame, a second hydraulic cylinder, a third hydraulic cylinder, a first semi-circular plate, and a second semi-circular plate. When the corn grain screening is complete, it effectively transports the corn grains to the next position, ensuring that the corn grains enter the screening drum in an orderly manner and preventing small corn grains from flowing into larger ones. The diversion plate and guide drum rationally divert and guide the screened corn grains, ensuring they accurately fall into the corresponding collection boxes, thus achieving effective collection of corn breeding grains of different sizes. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the box structure of this utility model; Figure 2 This is a schematic diagram of the extrusion column structure of this utility model; Figure 3 This is a schematic diagram of the limiting frame structure of this utility model; Figure 4 This is a schematic diagram of the servo motor structure of this utility model.
[0015] Explanation of reference numerals in the attached figures 1. Box body; 2. Anti-blocking mechanism; 201. Limiting frame; 202. Fixing block; 203. Power motor; 204. Screen barrel; 205. Limiting rod; 206. Extrusion column; 207. First limiting column; 208. Second limiting column; 209. First hydraulic cylinder; 210. Gear; 211. Rotary wheel; 3. Swing assembly; 301. Fixed frame; 302. Second hydraulic cylinder; 303. Third hydraulic cylinder; 304. First semicircular plate; 305. Second semicircular plate; 4. Feeding assembly; 401. Servo motor; 402. Threaded rod; 403. Collection box; 404. Moving plate; 5. Collection components; 501. Support column; 502. Diverter plate; 503. Flow guide barrel; 6. Support plate; 7. Support rod; 8. Material receiving box. Detailed Implementation
[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0017] Please see Figures 1-4 This utility model provides a screening device for corn breeding pellets, including a box 1, and an anti-blocking mechanism 2 is provided inside the box 1; The anti-blocking mechanism 2 includes a limiting frame 201. A fixing block 202 is fixedly connected to the upper surface of the limiting frame 201. A power motor 203 is fixedly connected to the upper surface of the fixing block 202. A gear 210 is fixedly installed at the output end of the power motor 203. A screen barrel 204 is meshed with the outer surface of the gear 210. Four rotating wheels 211 are rotatably connected to the outer surface of the limiting frame 201. The outer surface of each rotating wheel 211 is in contact with the outer surface of the screen barrel 204. Two limiting rods 205 are fixedly connected to the end of the limiting frame 201 near the housing 1. A squeezing column 206 is rotatably connected to the inner wall of the two limiting rods 205. Two first limiting columns 207 are rotatably connected to the inner wall of the limiting frame 201. The bottom surface of each first limiting column 207 is fixedly connected to the inner bottom wall of the housing 1. Two second limiting columns 207 are fixedly connected to the inner bottom wall of the housing 1. The inner wall of each second limiting post 208 is in contact with the outer surface of the limiting frame 201. The inner bottom wall of the box 1 is rotatably connected to the first hydraulic cylinder 209. The telescopic end of the first hydraulic cylinder 209 is rotatably connected to the bottom surface of the limiting frame 201. By setting the extrusion post 206, when the power motor 203 drives the gear 210 to rotate, and thus drives the screen barrel 204 to rotate, the extrusion post 206 will squeeze the corn breeding kernels inside the screen barrel 204 as the screen barrel 204 rotates, squeezing out the kernels stuck in the screen holes and ensuring the unobstructed screen holes. The upper surface of the limiting frame 201 is fixedly connected to the support rod 7, and the front of the support rod 7 is fixedly connected to the support plate 6. The outer surface of the support plate 6 is in contact with the inner wall of the screen barrel 204. When the screen barrel 204 rotates, it prevents the corn kernels from spilling out, further ensuring the stability and efficiency of the screening process.
[0018] Please refer to this carefully. Figure 2 and Figure 3The box 1 is equipped with a swing assembly 3. The swing assembly 3 includes a fixed frame 301. The back of the fixed frame 301 is fixedly connected to the front of the limiting frame 201. The outer surface of the fixed frame 301 is rotatably connected to a second semicircular plate 305. The back of the fixed frame 301 is fixedly connected to a second hydraulic cylinder 302. The telescopic end of the second hydraulic cylinder 302 is rotatably connected to the inner wall of the second semicircular plate 305. The back of the fixed frame 301 is fixedly connected to a third hydraulic cylinder 303. The outer surface of the fixed frame 301 is rotatably connected to a first semicircular plate 304. The telescopic end of the third hydraulic cylinder 303 is rotatably connected to the front of the first semicircular plate 304. The outer surfaces of the first semicircular plate 304 and the second semicircular plate 305 are in contact with the inner wall of the sieve barrel 204. When the corn kernels are being screened, they are screened in their respective positions to avoid mutual interference and prevent unscreened corn kernels from entering the next larger sieve hole.
[0019] Please refer to this carefully. Figure 2 and Figure 4 The outer side of the box 1 is provided with a feeding component 4, which includes a servo motor 401. The front of the servo motor 401 is fixedly connected to the back of the box 1. The output end of the servo motor 401 is fixedly connected to a threaded rod 402. The outer surface of the threaded rod 402 is threadedly connected to a moving plate 404. The inner wall of the box 1 is fixedly connected to a collection frame 403. The inner wall of the collection frame 403 is slidably connected to the outer surface of the moving plate 404. After the screening barrel 204 finishes screening, the screening corn kernels can be transported to the corresponding position by moving the moving plate 404 to achieve orderly feeding.
[0020] Please refer to this carefully. Figure 3 The box 1 is equipped with a collection component 5, which includes a support column 501. The bottom surface of the support column 501 is fixedly connected to the inner bottom wall of the box 1. A diversion plate 502 is fixedly connected to the upper surface of the support column 501. A guide bucket 503 is fixedly connected to the front of the fixed frame 301. The screened corn kernels flow through the guide bucket 503 to the diversion plate 502. The diversion plate 502 guides the kernels of different sizes to different collection boxes 8, thus completing the effective collection of corn breeding kernels.
[0021] Please refer to this carefully. Figure 2 The box 1 is equipped with four receiving boxes 8 inside. The outer surface of each receiving box 8 is slidably connected to the inner wall of the box 1, which makes it easy to replace the receiving box 8 when it is full, and also facilitates the subsequent processing of the corn breeding grains in the receiving box 8.
[0022] In use, the operator first pushes the corn seed pellets to the working position. Since the power motor 203, the first hydraulic cylinder 209, the second hydraulic cylinder 302, the third hydraulic cylinder 303, and the servo motor 401 are electrically connected, the operator then connects the power supply to these components to ensure a stable power supply. After starting the servo motor 401, its power output drives the threaded rod 402 to rotate. Because the threaded rod 402 is threadedly connected to the moving plate 404, and the moving plate 404 slides along the inner wall of the collection frame 403, the moving plate 404 will move along the threaded rod 402. The linear motion transports corn breeding kernels from the collection frame 403 to the sieve barrel 204. Immediately afterwards, the moving plate 404 moves to the far end to add more corn kernels, preparing for the next round of screening. Simultaneously, the power motor 203 starts, its output driving the gear 210 to rotate, which in turn rotates the sieve barrel 204. The rotating wheel 211 provides auxiliary support and stabilizes the rotation, ensuring smoother rotation of the sieve barrel 204. As the sieve barrel 204 rotates, it drives the extrusion column 206 to rotate within the limit rod 205, compressing the corn breeding kernels within the sieve barrel 204. When irregularly shaped corn kernels become stuck in the sieve holes, the extrusion column 206 promptly unclogs the blockage, preventing sieve blockage and ensuring continuous and efficient screening. Because the sieve holes in the front half of the sieve barrel 204 are smaller and used to screen smaller particles, when the screening of the front half is complete, the first hydraulic cylinder 209 can be opened to adjust the rising angle of the limit frame 201 until the corn kernels can slide down automatically. Then, the second hydraulic cylinder 302 is activated, and its telescopic end pushes the second semicircular plate 305 to rotate. At this time, the corn kernels screened in the front half can slide to the rear half. The first hydraulic cylinder 209 is then returned to its original position, and suitable breeding kernels fall into the diversion plate 502 below, flowing into the collection box 8 below. When the kernels in the rear half stop falling, the first hydraulic cylinder 209 can be activated again to raise the angle of the limit frame 201 by half until the smaller kernels are removed. Larger particles are poured out, while the retracting end of the third hydraulic cylinder 303 causes the first semicircular plate 304 to rotate. Particles flow from the openings of the first semicircular plate 304 and the sieve barrel 204 into the receiving box 8 below. During this process, the fixing frame 301 provides support and connection, ensuring stable cooperation between the components. Driven by the second hydraulic cylinder 302 and the third hydraulic cylinder 303, the second semicircular plate 305 and the first semicircular plate 304 can precisely control the flow direction of the corn particles and the transition between screening stages, allowing corn breeding particles of different sizes to accurately fall into the corresponding receiving box 8 according to the preset path. Throughout the screening process, the support plate 6 provides further support to the sieve barrel 204, ensuring the stability of the sieve barrel 204 during rotation and screening.The sliding connection design between the receiving box 8 and the inner wall of the housing 1 allows workers to easily remove the receiving box 8 after screening for subsequent processing of corn breeding kernels of different sizes, such as packaging and storage. After one screening cycle is completed, workers can turn off the power to the motor 203, the first hydraulic cylinder 209, the second hydraulic cylinder 302, the third hydraulic cylinder 303, and the servo motor 401 to prepare for the next screening cycle. Through this orderly and efficient screening method, this corn breeding kernel screening device effectively improves the screening quality and efficiency of corn breeding kernels, meeting the needs of actual production.
[0023] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A screening device for corn breeding pellets, comprising a housing (1), characterized in that: The box (1) is equipped with an anti-blocking mechanism (2). The anti-blocking mechanism (2) includes a limiting frame (201), a fixing block (202) is fixedly connected to the upper surface of the limiting frame (201), a power motor (203) is fixedly connected to the upper surface of the fixing block (202), a gear (210) is fixedly installed at the power output end of the power motor (203), a screen barrel (204) is meshed with the outer surface of the gear (210), four rotating wheels (211) are rotatably connected to the outer surface of the limiting frame (201), and the outer surface of each rotating wheel (211) is in contact with the outer surface of the screen barrel (204). Two limiting rods are fixedly connected to one end of the limiting frame (201) near the box (1). (205), the inner walls of the two limiting rods (205) are rotatably connected to the extrusion column (206), the inner wall of the limiting frame (201) is rotatably connected to two first limiting columns (207), the bottom surface of each first limiting column (207) is fixedly connected to the inner bottom wall of the box (1), the inner bottom wall of the box (1) is fixedly connected to two second limiting columns (208), the inner wall of each second limiting column (208) is in contact with the outer surface of the limiting frame (201), the inner bottom wall of the box (1) is rotatably connected to a first hydraulic cylinder (209), the telescopic end of the first hydraulic cylinder (209) is rotatably connected to the bottom surface of the limiting frame (201); The box (1) is equipped with a swing assembly (3) inside, a feeding assembly (4) is equipped on the outside of the box (1), and a collecting assembly (5) is equipped inside the box (1).
2. The screening device for corn breeding pellets according to claim 1, characterized in that: The swing assembly (3) includes a fixed frame (301), the back of the fixed frame (301) is fixedly connected to the front of the limiting frame (201), the outer surface of the fixed frame (301) is rotatably connected to a second semicircular plate (305), the back of the fixed frame (301) is fixedly connected to a second hydraulic cylinder (302), the telescopic end of the second hydraulic cylinder (302) is rotatably connected to the inner wall of the second semicircular plate (305), the back of the fixed frame (301) is fixedly connected to a third hydraulic cylinder (303), the outer surface of the fixed frame (301) is rotatably connected to a first semicircular plate (304), the telescopic end of the third hydraulic cylinder (303) is rotatably connected to the front of the first semicircular plate (304), and the outer surfaces of the first semicircular plate (304) and the second semicircular plate (305) are both in contact with the inner wall of the screen barrel (204).
3. The screening device for corn breeding pellets according to claim 1, characterized in that: The unloading assembly (4) includes a servo motor (401), the front of which is fixedly connected to the back of the housing (1), and a threaded rod (402) is fixedly connected to the output end of the servo motor (401). A movable plate (404) is threadedly connected to the outer surface of the threaded rod (402). A collection frame (403) is fixedly connected to the inner wall of the housing (1), and the inner wall of the collection frame (403) is slidably connected to the outer surface of the movable plate (404).
4. A screening device for corn breeding pellets according to claim 2, characterized in that: The collection component (5) includes a support column (501), the bottom surface of which is fixedly connected to the inner bottom wall of the box (1), a diversion plate (502) is fixedly connected to the upper surface of the support column (501), and a guide bucket (503) is fixedly connected to the front of the fixed frame (301).
5. A screening device for corn breeding pellets according to claim 1, characterized in that: The upper surface of the limiting frame (201) is fixedly connected to a support rod (7), and the front of the support rod (7) is fixedly connected to a support plate (6). The outer surface of the support plate (6) is in contact with the inner wall of the sieve barrel (204).
6. A screening device for corn breeding pellets according to claim 1, characterized in that: The box (1) is equipped with four receiving boxes (8) inside, and the outer surface of each receiving box (8) is slidably connected to the inner wall of the box (1).