Screening machine for corn seed breeding
By employing a screening mechanism with an adjustable screening plate, an angle adjustment mechanism, and a material control mechanism, the problem of difficult and rapid adjustment of fixed screens in existing technologies has been solved, thereby improving screening efficiency and accuracy and adapting to the screening of seeds of different varieties and particle sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-17
AI Technical Summary
The fixed installation of the screens in existing screening machines makes it difficult to adjust them quickly, resulting in low screening efficiency and an inability to meet the screening needs of different varieties and particle sizes.
An adjustable screening mechanism and angle adjustment mechanism are adopted. The angle of the screening plate and the replacement of the screening plate are adjusted by a motor-driven turntable and a hydraulic cylinder. Combined with a material control mechanism to control the seed feeding speed, the screening plate can be quickly replaced and the seeds can be evenly distributed.
It improves screening efficiency and accuracy, can quickly adapt to the screening needs of different varieties and particle sizes, reduces the time for changing screening plates, and ensures high efficiency and consistency in screening.
Smart Images

Figure CN223996615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening machine technology, and in particular to a screening machine for corn seed breeding. Background Technology
[0002] A screening machine is a device that uses physical or mechanical principles to screen, grade, and separate different materials. It is widely used in many fields such as chemical, food, medicine, and agriculture. In agriculture, screening machines can be used for seed selection, removing impurities and unripe seeds to improve seed quality. They can also be used to remove impurities from harvested grains to ensure the purity of the grains.
[0003] Existing screening machines use fixed screens to select seeds. During the seed selection process, the screening criteria may need to be adjusted according to different varieties, growth environments, or selection objectives. Once the fixed screen is installed, it is difficult to make quick adjustments. If the screen needs to be replaced, a large number of parts usually need to be removed, which increases the replacement time and reduces the screening efficiency. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a screening machine for corn seed breeding.
[0005] This utility model is achieved by the following technical solution: a screening machine for corn seed breeding, comprising a screening mechanism, an angle adjustment mechanism and a material control mechanism, wherein the screening mechanism is located at the top of the angle adjustment mechanism and the material control mechanism is located at the top of the angle adjustment mechanism;
[0006] The screening mechanism includes a fixed plate with a sliding groove inside. A motor is fixedly connected to the inner wall of the fixed plate, and a turntable is fixedly connected to the output end of the motor. A fixed column is fixedly connected to the outer wall of the turntable, and a connecting plate is rotatably connected to the outer wall of the fixed column. A first fixed column is rotatably connected to the inner end of the connecting plate away from the fixed column. A screw is threadedly connected to the inner end of the first fixed column, and a limit plate is slidably connected to the outer wall of the screw. A slider is fixedly connected to the outer wall of the first fixed column, and the slider is slidably connected to the outer wall of the sliding groove. A screening plate is fixedly connected to the end of the first fixed column near the slider.
[0007] With the above technical solution, the motor drives the turntable to rotate. A fixed column is fixed on the outer wall of the turntable. The connecting plate rotates simultaneously with the fixed column and the first fixed column. The first fixed column is fixed to the slider and the screening plate, causing the slider to slide on the outer wall of the chute. At the same time, the screening plate reciprocates through the connecting plate. Good seeds are retained on the surface of the screening plate, while inferior seeds are separated through the screening plate. The user removes the screw, which is threaded to the first fixed column, to disengage the limiting plate from the first fixed column. The connecting plate is then slid on the outer wall of the first fixed column and the fixed column, thereby releasing the screening plate. The screening plate can then be quickly replaced. By quickly replacing the screening plate, adjustments can be made for different varieties of seeds, reducing the user's replacement time and improving screening efficiency.
[0008] As a further improvement to the above solution, the angle adjustment mechanism includes a base, a fixing plate is fixedly connected to the top of the base, and a connecting column is rotatably connected inside the fixing plate.
[0009] As a further improvement to the above solution, a hydraulic cylinder is fixedly connected to the outer end of the connecting column, and a connecting column is fixedly connected to the output end of the hydraulic cylinder.
[0010] As a further improvement to the above solution, a support column is rotatably connected to the end of the connecting column away from the hydraulic cylinder. The support column is fixedly connected inside the fixed plate, and the support column is fixedly connected to the outer wall of the fixed plate.
[0011] As a further improvement to the above solution, a fixing plate 2 is rotatably connected to the outer wall of the support column 1, and the fixing plate 2 is fixedly connected to the top of the base.
[0012] With the above technical solution, when the hydraulic cylinder is running, the fixed plate rotates around the support column one. By adjusting the tilt angle of the fixed plate, the flow speed of the seeds on the screening plate can be adjusted, which can better adapt to the screening needs of seeds of different particle sizes and improve the accuracy and efficiency of screening.
[0013] As a further improvement to the above solution, the material control mechanism includes a feeding plate, which is fixedly connected to the top of the fixed plate, and a threaded rod is threadedly connected inside the feeding plate.
[0014] As a further improvement to the above solution, a handle is fixedly connected to the outer end of the threaded rod, a fixing block is threadedly connected to the threaded rod, a material control plate is fixedly connected to the bottom of the fixing block, and the material control plate is slidably connected to the inner wall of the feed plate.
[0015] With the above technical solution, the user can rotate the threaded rod by turning the handle. The threaded rod is threadedly connected to the fixed block, and the fixed block is fixed to the control plate, so that the control plate slides on the inner wall of the feed plate. This allows the user to control the feeding speed of the seeds, so that the seeds are evenly distributed on the screen, avoiding seed accumulation and improving the accuracy and consistency of screening.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention uses a motor to drive a turntable to rotate. A fixed column is fixed to the outer wall of the turntable. A connecting plate rotates simultaneously with the fixed column and the first fixed column. The first fixed column is fixed to the slider and the screening plate, allowing the slider to slide on the outer wall of the chute. At the same time, the connecting plate causes the screening plate to reciprocate. Good seeds are retained on the surface of the screening plate, while inferior seeds are separated. The user removes the screw, which is threaded to the first fixed column, to disengage the limiting plate from the first fixed column. The connecting plate is then slid against the outer wall of the first fixed column, releasing the screening plate. This allows for quick replacement of the screening plate. By quickly replacing the screening plate, adjustments can be made for different seed varieties, reducing user replacement time and improving screening efficiency.
[0018] This invention allows the fixed plate to rotate around the support column when the hydraulic cylinder is running. By adjusting the tilt angle of the fixed plate, the flow speed of the seeds on the screening plate can be adjusted, which can better adapt to the screening needs of seeds of different particle sizes and improve the accuracy and efficiency of screening. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the screening mechanism of this utility model;
[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;
[0022] Figure 4 This is a schematic diagram of the angle adjustment mechanism of this utility model;
[0023] Figure 5 This is a schematic diagram of the material control mechanism of this utility model.
[0024] Explanation of key symbols:
[0025] 1. Screening Mechanism; 101. Fixed Plate; 102. Slide Groove; 103. Motor; 104. Turntable; 105. Fixed Column; 106. Connecting Plate; 107. Fixed Column One; 108. Screw; 109. Limiting Plate; 110. Sliding Block; 111. Screening Plate; 2. Angle Adjustment Mechanism; 201. Base; 202. Fixed Plate One; 203. Connecting Column; 204. Hydraulic Cylinder; 205. Connecting Column One; 206. Support Column; 207. Support Column One; 208. Fixed Plate Two; 3. Material Control Mechanism; 301. Feed Plate; 302. Threaded Rod; 303. Handle; 304. Fixed Block; 305. Material Control Plate. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] Example:
[0028] Please combine Figure 1-5 This embodiment provides a screening machine for corn seed breeding, including a screening mechanism 1, an angle adjustment mechanism 2, and a material control mechanism 3. The screening mechanism 1 is located on top of the angle adjustment mechanism 2, and the material control mechanism 3 is located on top of the angle adjustment mechanism 2.
[0029] The screening mechanism 1 includes a fixed plate 101, a sliding groove 102 inside the fixed plate 101, a motor 103 fixedly connected to the inner wall of the fixed plate 101, a turntable 104 fixedly connected to the output end of the motor 103, a fixed column 105 fixedly connected to the outer wall of the turntable 104, a connecting plate 106 rotatably connected to the outer wall of the fixed column 105, a fixed column 107 rotatably connected to the inner end of the connecting plate 106 away from the fixed column 105, a screw 108 threadedly connected to the inner end of the fixed column 107, a limit plate 109 slidably connected to the outer wall of the screw 108, a slider 110 fixedly connected to the outer wall of the fixed column 107, the slider 110 slidably connected to the outer wall of the sliding groove 102, and a screening plate 111 fixedly connected to the inner end of the fixed column 107 near the slider 110.
[0030] The angle adjustment mechanism 2 includes a base 201, a fixing plate 202 fixedly connected to the top of the base 201, and a connecting column 203 rotatably connected inside the fixing plate 202.
[0031] A hydraulic cylinder 204 is fixedly connected to the outer end of the connecting column 203, and a connecting column 205 is fixedly connected to the output end of the hydraulic cylinder 204.
[0032] A support column 206 is rotatably connected to the end of the connecting column 205 away from the hydraulic cylinder 204. The support column 206 is fixedly connected inside the fixed plate 101. A support column 207 is fixedly connected to the outer wall of the fixed plate 101.
[0033] The outer wall of the support column 207 is rotatably connected to the fixing plate 208, which is fixedly connected to the top of the base 201.
[0034] The material control mechanism 3 includes a feed plate 301, which is fixedly connected to the top of the fixed plate 101. A threaded rod 302 is threadedly connected inside the feed plate 301.
[0035] A handle 303 is fixedly connected to the outer end of the threaded rod 302. A fixing block 304 is threadedly connected to the threaded rod 302. A material control plate 305 is fixedly connected to the bottom of the fixing block 304. The material control plate 305 is slidably connected to the inner wall of the feed plate 301.
[0036] The implementation principle of a corn seed selection screening machine in this embodiment is as follows: Seeds are poured into the feed plate 301. The user rotates the threaded rod 302 via the handle 303. The threaded rod 302 is threadedly connected to the fixing block 304, which is fixed to the control plate 305. This allows the control plate 305 to slide on the inner wall of the feed plate 301, thereby controlling the seed feeding speed and ensuring even distribution of seeds on the screen, preventing seed accumulation and improving the accuracy and consistency of screening. A connecting column 203 is fixed to the outer wall of the hydraulic cylinder 204, and the connecting column 203 rotates on the fixing plate 202. Internally, a fixing plate 102 is fixed to the base 201. A connecting column 205 is fixed to the output end of the hydraulic cylinder 204. The connecting column 205 rotates with the support column 206, while the support column 206 is fixed to the inner wall of the fixing plate 101. Since the fixing plate 102 and the fixing plate 101 are at an obtuse angle, the fixing plate 101 is always in a supported state. A support column 207 is fixed to the outer wall of the fixing plate 101. The support column 207 rotates with the fixing plate 208. When the hydraulic cylinder 204 is running, the fixing plate 101 rotates around the support column 207 as the center. By adjusting the fixing plate 102... The tilt angle of 01 can adjust the flow speed of seeds on the screening plate 111, which can better adapt to the screening needs of seeds of different particle sizes and improve the accuracy and efficiency of screening. The motor 103 drives the turntable 104 to rotate. The fixing column 105 is fixed on the outer wall of the turntable 104. The connecting plate 106 rotates simultaneously with the fixing column 105 and the fixing column 107. The fixing column 107 is fixed to the slider 110 and the screening plate 111, so that the slider 110 slides on the outer wall of the slide groove 102, ensuring that the screening plate 111 does not shift left or right during operation. At the same time, the connecting plate 106 allows the screening plate 111 to enter the screen. The process involves reciprocating motion, during which good seeds are retained on the surface of the sieve plate 111, while inferior seeds are separated by the sieve plate 111. The user removes the screw 108, which is threadedly connected to the fixed column 107, causing the limiting plate 109 to disengage from the fixed column 107. At this point, the connecting plate 106 is slid against the outer walls of the fixed columns 107 and 105, thereby releasing the sieve plate 111. The sieve plate 111 can then be quickly replaced. By quickly replacing the sieve plate 111, adjustments can be made for different seed varieties, reducing the user's replacement time and improving sieve efficiency.
[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A screening machine for breeding corn seeds, characterized by: Including screening mechanism (1), angle adjusting mechanism (2) and control material mechanism (3), the screening mechanism (1) is located at the top of angle adjusting mechanism (2), and the control material mechanism (3) is located at the top of angle adjusting mechanism (2); The fixed plate (101) is internally provided with a sliding groove (102), the inner wall of the fixed plate (101) is fixedly connected with a motor (103), the output end of the motor (103) is fixedly connected with a rotating disc (104), the outer wall of the rotating disc (104) is fixedly connected with a fixed column (105), the outer wall of the fixed column (105) is rotatably connected with a connecting plate (106), the end, away from the fixed column (105), of the connecting plate (106) is rotatably connected with a fixed column one (107) in the inside, the fixed column one (107) is internally and threadedly connected with a screw rod (108), the outer wall of the screw rod (108) is slidably connected with a limiting plate (109), the outer wall of the fixed column one (107) is fixedly connected with a sliding block (110), the sliding block (110) is slidably connected to the outer wall of the sliding groove (102), and the end, close to the sliding block (110), of the fixed column one (107) is fixedly connected with a screening plate (111).
2. The screening machine for breeding corn seeds according to claim 1, wherein The angle adjusting mechanism (2) comprises a base (201), and the top of the base (201) is fixedly connected with a fixed plate one (202).
3. A machine for selecting corn seeds for breeding according to claim 2, characterized in that, The outer end of the connecting column (203) is fixedly connected with a hydraulic cylinder (204), and the output end of the hydraulic cylinder (204) is fixedly connected with a connecting column one (205).
4. The screening machine for breeding corn seeds according to claim 3, wherein The end, away from the hydraulic cylinder (204), of the connecting column one (205) is rotatably connected with a supporting column (206) in the inside, and the supporting column (206) is fixedly connected in the inside of the fixed plate (101).
5. A machine for selecting corn seeds according to claim 4, characterized in that, The outer wall of the supporting column one (207) is rotatably connected with a fixed plate two (208), and the fixed plate two (208) is fixedly connected to the top of the base (201).
6. The machine for screening corn seeds for breeding according to claim 1, wherein The control material mechanism (3) comprises an inlet plate (301), and the inlet plate (301) is fixedly connected to the top of the fixed plate (101).
7. A machine for selecting corn seeds according to claim 6, characterized in that, The outer end of the threaded rod (302) is fixedly connected with a handle (303), the threaded rod (302) is threadedly connected with a fixed block (304), the bottom of the fixed block (304) is fixedly connected with a control material plate (305), and the control material plate (305) is slidably connected to the inner wall of the inlet plate (301).