Operating method of a corn seed selection device

Abstract

This invention discloses an operating method for a corn seed selection device. The selection device includes a body, a screening tank, and a fan. A first support base and a second support base on the body are connected by a resetting elastic element. The screening tank is horizontally rotatably positioned between the second support bases. The interior of the screening tank is divided into several compartments by a screen. Both ends of the screening tank have inlet holes and dust outlets. The cross-section of the screening tank gradually decreases from the inlet hole to the dust outlet. Each compartment has a discharge outlet on its outer wall near the inlet hole. A waste ring compartment is located on the inner wall of the screening tank near the dust outlet, and a discharge port is located on the inner wall of the waste ring compartment. A first rotating shaft driven by a motor is positioned between the first support bases. A cam is located in the middle of the first rotating shaft. A support plate is located on the second support base. The cam acts on the lower surface of the support plate. The first rotating shaft drives the screening tank to rotate via a power component. This invention can improve the efficiency of corn seed selection.

Description

Technical Field

[0001] This invention relates to the field of seed selection device technology, and specifically to an operating method of a corn seed selection device. Background Technology

[0002] The healthy growth of corn depends on careful seed selection in the early stages. When selecting corn seeds, it is necessary to obtain kernels of similar size and to avoid old kernels, which are generally light and shriveled.

[0003] Current methods for selecting corn seeds typically involve winnowing. However, this method generally has the following drawbacks:

[0004] Because corn kernels are easily covered with dust, husks, and other impurities, blowing air can remove these impurities. However, existing cleaning methods still have limitations in thoroughness, requiring repeated cleaning. Some corn kernels need to be graded and screened, separating them according to their diameter. However, some shriveled kernels that meet the size requirements remain in each grade, which will reduce the germination rate of the corn after sowing. Summary of the Invention

[0005] Therefore, the present invention provides an operating method for a corn seed selection device to overcome the above-mentioned defects in the prior art.

[0006] A method for operating a corn seed selection device includes a body, a screening tank, and a fan. The body has a first support base, and a second support base is slidably positioned above the first support base. The first and second support bases are connected by a resetting elastic element. The screening tank is horizontally rotatably positioned between the second support bases. Inside the screening tank, a primary screen, a secondary screen, and a tertiary screen with progressively smaller mesh sizes are sequentially arranged. The screening tank is divided into several compartments by the primary, secondary, and tertiary screens. The end of the screening tank near the primary screen is provided with a feed hole, and the end of the screening tank near the tertiary screen is provided with a dust outlet. The cross-section of the screening tank gradually decreases from the feed hole to the dust outlet. Each of the compartments is provided with a discharge outlet on the outer wall near the feed hole. The inner wall of the screening tank near the dust outlet is provided with a waste ring compartment. The inner wall of the waste ring compartment is arranged in a ring shape with several throwing ports. The throwing ports are used to discharge shriveled material from corn kernels of the same diameter in the compartment. The air outlet of the blower is located on the side of the screening tank near the feed hole.

[0007] A first rotating shaft driven by a motor is provided between the first support bases. A cam is provided in the middle of the first rotating shaft. A support plate is provided on the second support base. The cam acts on the lower surface of the support plate. The first rotating shaft drives the screening tank to rotate through a power component.

[0008] Preferably, the power assembly includes a first bevel gear disposed at the end of the first rotating shaft, a second bevel gear rotatably disposed on one side of the first support, the first and second bevel gears meshing with each other, a second rotating shaft vertically disposed at the center of the second bevel gear, a guide cylinder rotatably mounted on the second support, the second rotating shaft slidingly fitted inside the guide cylinder, a third bevel gear disposed at the upper end of the guide cylinder, a dust outlet connected to a dust outlet cylinder, a fourth bevel gear disposed on the outer wall of the dust outlet cylinder, the third and fourth bevel gears meshing with each other, a vertical guide ridge disposed on the outer wall of the second rotating shaft, and a vertical guide groove disposed on the inner wall of the guide cylinder for limiting the vertical guide ridge so that the guide cylinder can only move up and down.

[0009] Preferably, the feed hole is connected to a spiral feed pipe, the feed inlet of the spiral feed pipe is connected to a rotary drum adapter, a telescopic feed pipe is provided above the rotary drum adapter, and a feed funnel is connected to the upper end of the telescopic feed pipe.

[0010] Preferably, the upper surface of the first support base is provided with a guide post, and the lower surface of the second support base is provided with a guide hole, wherein the guide post is limited to slide up and down within the guide hole.

[0011] Preferably, the reset elastic element is a reset spring.

[0012] Preferably, the outer wall of the waste ring silo is provided with a discharge port, and the discharge port and the outlet are located on the same side of the screening tank.

[0013] The present invention has the following advantages:

[0014] In the process of air separation in the screening tank of this invention, the tank body, under the linkage of the power component, can not only rotate and mix the corn kernels, but also vibrate up and down, so that the corn kernels are fully stirred. Since the air blows can act on the surface of the corn kernels, it can effectively blow away impurities between and around the corn kernels, improving the purity of the seeds. The internal structure of the device of this invention is divided into several chambers for filtering corn seeds of different sizes by a primary screen, a secondary screen, and a tertiary screen. By tilting the inner cavity of the chamber and setting a waste ring chamber at the end of the chamber, the rotation of the screening tank can separate the seeds that meet the size requirements but are actually shriveled inside the same chamber and store them in the waste ring chamber, thereby improving the germination rate of the seed group. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 For the present invention Figure 1 A magnified structural diagram of D in the diagram;

[0017] Figure 3 For the present invention Figure 1 A magnified structural diagram of E in the middle;

[0018] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the guide cylinder of the present invention.

[0019] In the picture:

[0020] 1-Machine body; 2-Screening tank; 3-Fan; 4-First support base; 5-Second support base; 6-First-stage screen; 7-Second-stage screen; 8-Third-stage screen; 9-Feed hole; 10-Dust outlet; 11-Chamber; 12-Discharge port; 13-Discharge port; 14-First rotating shaft; 15-Cam; 16-Motor; 17-Support plate; 18-Waste ring bin; 19-Reset spring; 20-Guide column; 21-Guide hole; 22-Spiral feed pipe; 23-Rotating drum adapter; 24-Telescopic feed pipe; 25-Feed funnel; 26-First bevel gear; 27-Second bevel gear; 28-Second rotating shaft; 29-Third bevel gear; 30-Dust outlet cylinder; 31-Fourth bevel gear; 32-Guide cylinder; 33-Vertical guide ridge; 34-Vertical guide groove; 35-Discharge port. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 4 As shown, this invention provides an operating method for a corn seed selection device, which improves the screening efficiency of corn seeds. Specifically:

[0023] The selection device includes a conventional body 1, a screening tank 2, and a blower 3.

[0024] The body 1 is provided with a first support base 4, and a second support base 5 is slidably disposed above the first support base 4. A guide post 20 is provided on the upper surface of the first support base 4, and a guide hole 21 is provided on the lower surface of the second support base 5. The guide post 20 is limited to slide up and down within the guide hole 21.

[0025] Furthermore, the first support base 4 and the second support base 5 are connected by a reset elastic element, which is a reset spring 19.

[0026] The screening tank 2 is horizontally and rotatably positioned between the second support base 5. Inside the screening tank 2, a primary screen 6, a secondary screen 7, and a tertiary screen 8 with progressively smaller mesh sizes are sequentially arranged. The screening tank 2 is divided into several compartments 11 by the primary screen 6, secondary screen 7, and tertiary screen 8. These compartments 11 are designated as compartment A, compartment B, and compartment C. Because the mesh sizes of the primary screen 6, secondary screen 7, and tertiary screen 8 gradually decrease, the amount of corn kernels retained in compartments A, B, and C gradually decreases.

[0027] The screening tank 2 has a feed inlet 9 at the end near the primary screen 6 and a dust outlet 10 at the end near the tertiary screen 8. The cross-section of the screening tank 2 gradually decreases from the feed inlet 9 to the dust outlet 10. Each of the chambers 11 has a discharge outlet 12 on its outer wall near the feed inlet 9. The interior of the screening tank 2 has an inclined angle to guide and support the corn kernels inside the chambers 11.

[0028] The feed port 9 is connected to a spiral feed pipe 22, and the feed inlet of the spiral feed pipe 22 is connected to a rotary adapter 23. A telescopic feed pipe 24 is provided above the rotary adapter 23, and a feed funnel 25 is connected to the upper end of the telescopic feed pipe 24. The telescopic feed pipe 24 is designed to accommodate the lifting and lowering of the screening tank 2, and it includes several interlocking telescopic joints. The telescopic adjustment between the joints is similar to the telescopic mechanism of an umbrella handle.

[0029] The rotary adapter 23 is designed to accommodate the rotational changes of the screening tank 2. Corn kernels in the feed hopper 25 enter the spiral feed pipe 22 and then enter the screening tank 2 through the feed hole 9.

[0030] The inner wall of the screening tank 2, located near the dust outlet 10 on the side of the chamber 11, is equipped with a waste ring hopper 18. The inner wall of the waste ring hopper 18 has a ring-shaped array of several discharge ports 13. The outer wall of the waste ring hopper 18 is equipped with a discharge port 35, which is located on the same side of the screening tank 2 as the outlet 12. The discharge ports 13 are used to discharge shriveled corn kernels of the same diameter from the chamber 11. The air outlet of the blower 3 is located on the side of the screening tank 2 near the feed inlet 9. The air from the blower 3 passes sequentially through chambers A, B, and C.

[0031] A first rotating shaft 14 driven to rotate by a motor 16 is provided between the first support bases 4. A cam 15 is provided in the middle of the first rotating shaft 14. A support plate 17 is provided on the second support base 5. The cam 15 acts on the lower surface of the support plate 17. The first rotating shaft 14 drives the screening tank 2 to rotate through a power component.

[0032] The power assembly includes a first bevel gear 26 disposed at the end of the first rotating shaft 14, a second bevel gear 27 rotatably disposed on one side of the first support 4, the first bevel gear 26 and the second bevel gear 27 meshing with each other, a second rotating shaft 28 vertically disposed at the center of the second bevel gear 27, a guide cylinder 32 rotatably mounted on the second support 5, the second rotating shaft 28 slidably fitted inside the guide cylinder 32, a third bevel gear 29 disposed at the upper end of the guide cylinder 32, a dust outlet 10 connected to a dust outlet 30, a fourth bevel gear 31 disposed on the outer wall of the dust outlet 30, the third bevel gear 29 and the fourth bevel gear 31 meshing with each other, a vertical guide rib 33 disposed on the outer wall of the second rotating shaft 28, and a vertical guide groove 34 disposed on the inner wall of the guide cylinder 32 for limiting the vertical guide rib 33 so that the guide cylinder 32 can only move up and down.

[0033] The working principle of the device of this invention is as follows:

[0034] 1. Feeding: Pour the corn seeds to be selected into the feeding hopper 25. As the screening tank 2 connected to the spiral feed pipe 22 rotates during operation, it can cause the spiral feed pipe 22 to rotate synchronously to feed the corn kernels into the screening tank 2. Furthermore, since the spiral feed pipe 22 can vibrate up and down with the screening tank 2, the corn kernels at the bottom of the feeding hopper 25 can be shaken and fall off relatively, eliminating the need for additional external shaking and vibration devices.

[0035] II. Grading and selection of corn seeds: Start the motor 16, the motor 16 drives the first rotating shaft 14 to rotate, the cam 15 installed on the first rotating shaft 14 will also rotate, the cam 15 will lift the support plate 17 in contact with it to make up-and-down movement, the screening tank 2 on the second support seat 5 where the support plate 17 is located will also make up-and-down movement, vibrating the corn seeds inside up and down.

[0036] The first rotating shaft 14 drives the first bevel gear 26 located at the end to rotate. Since the first bevel gear 26 and the second bevel gear 27 mesh with each other, the second bevel gear 27 will also rotate. The rotating second bevel gear 27 drives the second rotating shaft 28 to rotate. The vertical guide rib 33 on the second rotating shaft 28 causes the guide cylinder 32, where the vertical guide groove 34 is located, to rotate. Because the guide cylinder 32 and the dust discharge cylinder 30 rise and fall synchronously with the second support base 5, the third bevel gear 29 and the fourth bevel gear 31 located on the guide cylinder 32 and the dust discharge cylinder 30 are always in a meshing state. That is, the rotating guide cylinder 32 will cause the third bevel gear 29 and the fourth bevel gear 31 to rotate, and the screening tank 2 connected to the dust discharge cylinder 30 will also rotate. Thus, the screening tank 2 rotates while it is rising and falling.

[0037] The blower 3 blows air through the corn seeds entering the screening tank 2, separating them into chambers A, B, and C according to their diameter from largest to smallest. During the rotation of the screening tank 2, the corn inside chamber 11 is agitated. Under centrifugal force, some corn seeds will still adhere to the inner wall of the screening tank 2; these impurities are easily overlooked. However, the up-and-down motion of the screening tank 2 during rotation causes the corn seeds adhering to its surface to flip and separate from the tank. Under the action of the blower 3, the impurities pass sequentially through the primary screen 6, the secondary screen 7, and the tertiary screen 8, and are finally discharged from the dust collection cylinder 30.

[0038] Shriveled and defective seeds among corn kernels of the same size will be blown by the wind to the side of each compartment 11 near the dust discharge cylinder 30. Under the action of centrifugal force, they will enter the waste ring hopper 18 from the discharge port 13. Plump seeds will remain on the side of the compartment 11 near the feed hole 9 due to their relative weight. In addition, the inclined structure inside the screening tank 2 itself is also conducive to the stratification of high-quality seeds and shriveled seeds.

[0039] 3. Feeding: After the seeds are selected, open the discharge port 12 of each compartment 11 to take out the seeds; open the discharge port 35 of the waste ring compartment 18 to take out the defective seeds. This invention can improve the selection efficiency of corn seeds.

[0040] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A method for operating a corn seed cleaning device, the cleaning device comprising a machine body (1), a screening tank (2) and a fan (3), characterized in that: The first support seat (4) is provided between the machine body (1), the second support seat (5) is slidably arranged above the first support seat (4), and the first support seat (4) and the second support seat (5) are connected through a reset elastic element; the screening tank (2) is horizontally and rotatably arranged between the second support seat (5); the inside of the screening tank (2) is sequentially provided with a first-level screen (6), a second-level screen (7) and a third-level screen (8) with gradually decreasing screen holes; the screening tank (2) is divided into a plurality of compartments (11) by the first-level screen (6), the second-level screen (7) and the third-level screen (8); The screening tank (2) is provided with a feeding hole (9) at one end close to the first-level screen (6), and is provided with a dust outlet (10) at one end close to the third-level screen (8); the tank body cross section of the screening tank (2) gradually decreases from the feeding hole (9) to the dust outlet (10) side; each compartment (11) is provided with a discharge hole (12) on the outer wall close to the feeding hole (9) side; the inside of the tank wall of the screening tank (2) close to the dust outlet (10) side is provided with a waste material ring compartment (18); a plurality of material throwing holes (13) are arranged in the inner wall of the waste material ring compartment (18) in a ring shape; the material throwing holes (13) are used for discharging dry and shriveled materials in the same diameter corn kernels in the compartment (11); the air outlet of the fan (3) is arranged on the side of the screening tank (2) close to the feeding hole (9); The first support seat (4) is provided between the machine body (1), the second support seat (5) is slidably arranged above the first support seat (4), and the first support seat (4) and the second support seat (5) are connected through a reset elastic element; the screening tank (2) is horizontally and rotatably arranged between the second support seat (5); the inside of the screening tank (2) is sequentially provided with a first-level screen (6), a second-level screen (7) and a third-level screen (8) with gradually decreasing screen holes; the screening tank (2) is divided into a plurality of compartments (11) by the first-level screen (6), the second-level screen (7) and the third-level screen (8); The first support seat (4) is provided between the machine body (1), the second support seat (5) is slidably arranged above the first support seat (4), and the first support seat (4) and the second support seat (5) are connected through a reset elastic element; the screening tank (2) is horizontally and rotatably arranged between the second support seat (5); the inside of the screening tank (2) is sequentially provided with a first-level screen (6), a second-level screen (7) and a third-level screen (8) with gradually decreasing screen holes; the screening tank (2) is divided into a plurality of compartments (11) by the first-level screen (6), the second-level screen (7) and the third-level screen (8); The feeding hole (9) is connected with a spiral feeding pipe (22), the feeding port of the spiral feeding pipe (22) is connected with a rotary drum adapter (23), the upper portion of the rotary drum adapter (23) is provided with an extendable feeding pipe (24), the upper end of the extendable feeding pipe (24) is connected with a feeding hopper (25); The operation method of the sorting device is specifically as follows: Step one, feeding: pour the corn seeds to be sorted into the feeding hopper (25), the sieve tank (2) rotates in the running process, and the spiral feeding pipe (22) connected therewith rotates synchronously to feed the corn kernels into the sieve tank (2), while the spiral feeding pipe (22) vibrates up and down with the sieve tank (2), and the corn kernels at the bottom of the feeding hopper (25) are relatively shaken to fall; Step two, corn seed grading and sorting: start the motor (16), the motor (16) drives the first rotating shaft (14) to rotate, the cam (15) also rotates, the cam (15) lifts the support plate (17) in contact therewith to make up-and-down movement, and the sieve tank (2) on the second support base (5) where the support plate (17) is located also makes up-and-down movement to vibrate the corn seeds inside up and down; The first rotating shaft (14) drives the first bevel gear (26) arranged at the end portion to rotate, the first bevel gear (26) drives the second bevel gear (27) to rotate, the second rotating shaft (28) and the guide cylinder (32) rotate, the guide cylinder (32) and the dust removal cylinder (30) rise and fall synchronously with the second support base (5), the third bevel gear (29) and the fourth bevel gear (31) are always in meshing state, the guide cylinder (32) drives the fourth bevel gear (31) to rotate through the third bevel gear (29), and the sieve tank (2) connected with the dust removal cylinder (30) also rotates, the sieve tank (2) rotates while rising and falling; The blowing of the fan 3 blows and selects the corn seeds entering the sieve tank (2), and the corn seeds enter the A chamber, the B chamber and the C chamber in order from large to small according to the size of the corn seeds, the corn in the chamber (11) is stirred and rotated in the rotating process of the sieve tank (2), the corn seeds attached to the surface of the sieve tank (2) are turned over in the up-and-down movement of the sieve tank (2), and are separated from the sieve tank (2), under the action of the fan (3), the impurities pass through the first screen (6), the second screen (7) and the third screen (8) in turn, and are finally discharged from the dust removal cylinder (30); The dry and defective seeds in the corn kernels of the same size are blown by the wind to the side of each chamber (11) close to the dust removal cylinder (30), and under the action of the centrifugal force, the dry and defective seeds enter the waste material ring chamber (18) from the throwing opening (13), while the full seeds are relatively heavy and stay on the side of the chamber (11) close to the feeding hole (9); Step three, discharging: after the seed sorting, the discharge opening (12) of each chamber (11) is opened to take out the seeds; The discharge opening (35) of the waste material ring chamber (18) is opened to take out the defective seeds.

2. A method of operating a corn seed cleaning apparatus according to claim 1, characterized in that: The upper surface of the first support seat (4) is provided with a guide column (20), the lower surface of the second support seat (5) is provided with a guide hole (21), and the guide column (20) is limited to slide up and down in the guide hole (21).

3. A method of operating a corn seed culling device according to claim 1, characterized in that: The reset elastic member is a reset spring (19).

4. A method of operating a corn seed cleaning apparatus according to claim 1, characterized in that: The outer bin wall of the waste material ring bin (18) is provided with a discharge port (35), and the discharge port (35) and the discharge port (12) are located on the same side of the screening tank (2).

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