阅读说明：本技术 一种全自动种子分选装置及其使用方法 (Full-automatic seed sorting device and use method thereof ) 是由 戚甫山 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种全自动种子分选装置及其使用方法,包括分离箱,分离箱内设置有两个分隔板,分隔板使分离箱自左向右形成左分离空间、中间分离空间和右分离空间,中间分离空间上方设置有漏料口；分隔板上方设置有纱网,分隔板下方开设有通孔,分离箱滑动连接有驱动杆,驱动杆连接有液压缸,驱动杆自左向右连接有均与通孔相适配的左封推板、中间封推板和右封推板；左分离空间和右分离空间均转动连接有出料门,出料门连接有驱动机构,驱动机构用于驱动出料门打开,分离箱下方还设置有水箱；水箱内设置有用于过滤种子的漏板,水箱内设置有左水泵和右水泵。本发明操作简单,且实现种子质量的全自动筛选工作,极大提高了筛选的效率和质量。(The invention discloses a full-automatic seed sorting device and a use method thereof, and the full-automatic seed sorting device comprises a separation box, wherein two separation plates are arranged in the separation box, the separation plates enable the separation box to form a left separation space, a middle separation space and a right separation space from left to right, and a material leakage port is arranged above the middle separation space; a gauze is arranged above the partition plate, a through hole is formed below the partition plate, the separation box is connected with a driving rod in a sliding manner, the driving rod is connected with a hydraulic cylinder, and the driving rod is connected with a left sealing push plate, a middle sealing push plate and a right sealing push plate which are all matched with the through hole from left to right; the left separation space and the right separation space are both rotatably connected with discharge doors, the discharge doors are connected with driving mechanisms, the driving mechanisms are used for driving the discharge doors to open, and a water tank is also arranged below the separation tank; a bushing plate for filtering seeds is arranged in the water tank, and a left water pump and a right water pump are arranged in the water tank. The method is simple to operate, full-automatic screening work of the seed quality is realized, and the screening efficiency and quality are greatly improved.)

1. A full-automatic seed sorting device comprises a separation box (5) fixedly connected with a support frame, and is characterized in that two separation plates (28) are arranged in the separation box (5), the separation plates (28) enable the separation box (5) to form a left separation space (7), a middle separation space (10) and a right separation space (11) from left to right, and a material leakage port (8) is arranged above the middle separation space (10); a gauze (6) is arranged above the partition plate (28), a through hole is formed below the partition plate (28), the separation box (5) is connected with a driving rod (29) in a sliding manner, the driving rod (29) is connected with a hydraulic cylinder (4), and the driving rod (29) is connected with a left sealing push plate (12), a middle sealing push plate (13) and a right sealing push plate (14) which are all matched with the through hole from left to right; the left separation space (7) and the right separation space (11) are both rotatably connected with a discharge door (26), the discharge door (26) is connected with a driving mechanism, the driving mechanism is used for driving the discharge door (26) to be opened, and a water tank (2) is further arranged below the separation box (5); the seed filtering device is characterized in that a bushing plate (3) used for filtering seeds is arranged in the water tank (2), a left water pump (1) and a right water pump (15) are arranged in the water tank (2), the left water pump (1) is communicated with the left separation space (7), and the right water pump (15) is communicated with the right separation space (11).

2. The fully automatic seed sorting device according to claim 1, wherein in an initial state, the left sealing push plate (12) is disposed in the left separation space (7), and the middle sealing push plate (13) and the right sealing push plate (14) are disposed in the through hole of the partition plate (28), so that the through hole is in a closed state.

3. The full-automatic seed sorting device according to claim 1, wherein the driving mechanism comprises a lever (16), the support frame is rotatably connected with the lever (16) through a rotating shaft (17), one end of the lever (16) is connected with a pressing plate (25) for supporting the discharging door (26), the pressing plate (25) is arranged below the discharging door (26), and the bottom surface of the separation box (5) and the bottom surface of the discharging door (26) are both contacted with the pressing plate (25).

4. The full-automatic seed sorting device according to claim 3, wherein two ends of the separation box (5) are respectively connected with an independent push rod (23) through springs (24), the push rods (23) penetrate through the separation box (5) and are in sliding connection with the separation box (5), the push rods (23) are in contact with the left side of the left sealing push plate (12) or leave a gap, and the push rods (23) penetrate out of the separation box (5) and are connected with the other end of the lever (16).

5. The full-automatic seed sorting device according to claim 4, wherein the supporting frame is connected with a horizontal sliding block (21) moving along a horizontal direction and a vertical sliding block (19) moving along a vertical direction in a sliding manner, the push rod (23) is connected with the horizontal sliding block (21), the horizontal sliding block (21) is hinged with a second connecting rod (20), the other end of the second connecting rod (20) is hinged with the vertical sliding block (19), the vertical sliding block (19) is also hinged with a first connecting rod (18), and the other end of the first connecting rod (18) is hinged with the lever (16).

6. The full-automatic seed sorting device according to claim 4, wherein the spring (24) is sleeved on the push rod (23), the spring (24) is arranged in the separation box (5), one end of the spring (24) is connected with the inner wall of the separation box (5), and the other end of the spring (24) is connected with the push rod (23).

7. The full-automatic seed sorting device according to claim 1, wherein a sealing block (27) is horizontally arranged in the through hole of the partition plate (28), the sealing block (27) is fixedly connected with the partition plate (28), and the left sealing push plate (12), the middle sealing push plate (13) and the right sealing push plate (14) are slidably connected with the sealing block (27).

8. A method for using a fully automatic seed sorting device, wherein the fully automatic seed sorting device of any one of claims 2 to 7 is adopted, and the method comprises the following steps:

s1, firstly, adding water into the separation box (5), wherein the height of the water is higher than the bottom end of the gauze (6), so that the liquid level heights of the water in the left separation space (7), the middle separation space (10) and the right separation space (11) are the same, then, the seeds enter the middle separation space (10) through the drain hole (8), after waiting for T, the seeds fall to the bottom surface of the middle separation space (10) under the buoyancy of the water, and the rest seeds float on the water surface;

s2: then starting the hydraulic cylinder (4), wherein the hydraulic cylinder (4) moves rightwards through the driving rod (29), so that the left sealing push plate (12) and the middle sealing push plate (13) move into the through hole of the partition plate (28), at the moment, the right sealing push plate (14) moves to the right separation space (11), and the middle sealing push plate (13) drives the seeds with better quality to move to the right separation space (11);

s3: then the driving mechanism drives the discharge door (26) in the right separation space (11) to be opened, seeds with better quality fall along the water flow towards the direction of the bushing (3), the seeds are positioned on the bushing (3) at the moment, the water flow enters the water tank (2), and then the discharge door (26) is closed;

s4: after waiting for the time T, the hydraulic cylinder (4) moves leftwards through the driving rod (29), so that the middle sealing push plate (13) and the right sealing push plate (14) move into the through hole of the partition plate (28), at the moment, the left sealing push plate (12) moves to the left separation space (7), and the middle sealing push plate (13) drives the seeds with better quality to move to the left separation space (7);

s5: then the driving mechanism drives the discharge door (26) in the left separation space (7) to be opened, seeds with better quality fall towards the direction of the bushing (3) along with water, the seeds are positioned on the bushing (3) at the moment, the water flows into the water tank (2), and then the discharge door (26) is closed;

s6: waiting time T₁And then, the left water pump (1) conveys water to the left separation space (7), and the right water pump (15) conveys water to the right separation space (11), so that the seed sorting work is completed.

9. The method for using the fully automatic seed sorting device of claim 8, wherein in the step S3, the method for operating the driving mechanism comprises: seal push pedal (14) on the right side and drive push rod (23) and remove, spring (24) compression, then drive vertical slider (19) upward movement through horizontal slider (21) and second connecting rod (20), vertical slider (19) drive lever (16) through first connecting rod (18) and revolve axle (17) and rotate, thereby make clamp plate (25) downstream, make discharge door (26) open, then pneumatic cylinder (4) drive right side and seal push pedal (14) and move left, under the effect of spring (24), realize closing of discharge door (26).

10. The method for using the fully automatic seed sorting device of claim 8, wherein in the step S5, the method for operating the driving mechanism comprises: seal push pedal (12) on a left side and drive push rod (23) and remove, spring (24) compression, then drive vertical slider (19) upward movement through horizontal slider (21) and second connecting rod (20), vertical slider (19) drive lever (16) through first connecting rod (18) and revolute axle (17) and rotate, thereby make clamp plate (25) downstream, make discharge door (26) open, then pneumatic cylinder (4) drive left side and seal push pedal (12) and move right, under the effect of spring (24), realize closing of discharge door (26).

Technical Field

The invention relates to the technical field of seeds, in particular to a full-automatic seed sorting device and a using method thereof.

Background

Whether seeds are full or not is an important parameter for measuring the quality of crop seeds, and empty and flat seeds not only relate to the thousand seed weight and the vitality index of the seeds, but also directly influence the germination characteristics and the survival ability of the seeds. Screening full seeds is an important measure for improving the use efficiency of crop seeds and enabling the seedlings to emerge orderly.

The seed quality generally includes both the quality of the variety and the quality of the seeding. Therefore, in the agricultural planting process, seeds need to be screened to remove the seeds with shrivelled, incomplete or smaller particles so as to ensure the growth quality of crops. However, the existing manual sorting mode has the disadvantages of large workload, complexity, time and uncontrollable factors, and poor screening effect.

Disclosure of Invention

In order to solve the problems in the prior art, a full-automatic seed sorting device and a using method thereof are provided.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention provides a full-automatic seed sorting device, which comprises a separation box fixedly connected with a support frame, wherein two separation plates are arranged in the separation box, the separation plates enable the separation box to form a left separation space, a middle separation space and a right separation space from left to right, and a material leakage port is arranged above the middle separation space; a gauze is arranged above the partition plate, a through hole is formed below the partition plate, the separation box is connected with a driving rod in a sliding manner, the driving rod is connected with a hydraulic cylinder, and the driving rod is connected with a left sealing push plate, a middle sealing push plate and a right sealing push plate which are matched with the through hole from left to right; the left separation space and the right separation space are both rotatably connected with discharge doors, the discharge doors are connected with driving mechanisms, the driving mechanisms are used for driving the discharge doors to open, and a water tank is further arranged below the separation box; the water tank is internally provided with a bushing plate for filtering seeds, the water tank is internally provided with a left water pump and a right water pump, the left water pump is communicated with the left separation space, and the right water pump is communicated with the right separation space.

Preferably, in an initial state, the left sealing push plate is arranged in the left separation space, and the middle sealing push plate and the right sealing push plate are both arranged in the through hole of the partition plate, so that the through hole is in a closed state.

Preferably, the driving mechanism comprises a lever, the support frame is rotatably connected with the lever through a rotating shaft, one end of the lever is connected with a pressing plate used for supporting the discharge door, the pressing plate is arranged below the discharge door, and the bottom surface of the separation box and the bottom surface of the discharge door are both contacted with the pressing plate.

Preferably, there are independent push rods at both ends of the separating box through spring connections respectively, the push rod runs through the separating box and is in sliding connection with the separating box, the push rod with the left side of the left sealing push plate contacts or leaves a gap, the push rod penetrates out of the separating box and is connected with the other end of the lever.

Preferably, the support frame is connected with a horizontal sliding block moving along the horizontal direction and a vertical sliding block moving along the vertical direction in a sliding mode, the push rod is connected with the horizontal sliding block, the horizontal sliding block is hinged to a second connecting rod, the other end of the second connecting rod is hinged to the vertical sliding block, the vertical sliding block is further hinged to a first connecting rod, and the other end of the first connecting rod is hinged to the lever.

Preferably, the spring is sleeved on the push rod, the spring is arranged in the separation box, one end of the spring is connected with the inner wall of the separation box, and the other end of the spring is connected with the push rod.

Preferably, a sealing block arranged in the horizontal direction is arranged in the through hole of the partition plate, the sealing block is fixedly connected with the partition plate, and the left sealing push plate, the middle sealing push plate and the right sealing push plate are all in sliding connection with the sealing block.

The invention also provides a use method of the full-automatic seed sorting device, and the full-automatic seed sorting device comprises the following steps:

s1, firstly, adding water into the separation box, wherein the height of the water is higher than the bottom end of the gauze, so that the liquid level heights of the water in the left separation space, the middle separation space and the right separation space are the same, then the seed is introduced into the middle separation space through the material leakage opening, after waiting for T, the seeds fall to the bottom surface of the middle separation space under the buoyancy of the water, and the rest seeds float on the water surface;

s2: then starting a hydraulic cylinder, moving the hydraulic cylinder to the right through a driving rod, so that the left sealing push plate and the middle sealing push plate move into the through hole of the partition plate, at the moment, moving the right sealing push plate to the right separation space, and driving the seeds with better quality to move to the right separation space by the middle sealing push plate;

s3: then the driving mechanism drives the discharge door in the right separation space to open, the seeds with better quality fall along the direction of the water flow towards the bushing plate, the seeds are positioned on the bushing plate at the moment, the water flow enters the water tank, and then the discharge door is closed;

s4: after waiting for the time T, the hydraulic cylinder moves leftwards through the driving rod, so that the middle sealing push plate and the right sealing push plate move into the through hole of the partition plate, at the moment, the left sealing push plate moves to the left separation space, and the middle sealing push plate drives the seeds with better quality to move to the left separation space;

s5: then the driving mechanism drives the discharge door in the left separation space to open, the seeds with better quality fall along the direction of the water flow towards the bushing plate, the seeds are positioned on the bushing plate at the moment, the water flow enters the water tank, and then the discharge door is closed;

s6: after waiting for the time T, the left water pump conveys water to the left separation space, and the right water pump conveys water to the right separation space, so that the seed sorting work is completed.

Preferably, in step S3, the method for operating the driving mechanism includes: the push pedal that seals on the right side drives the push rod and removes, and the spring compression then drives vertical slider upward movement through horizontal slider and second connecting rod, and vertical slider drives the lever through first connecting rod and revolutes the rotation of axes to make clamp plate downstream, make the discharge door open, then the pneumatic cylinder drives the push pedal that seals on the right side and moves left, under the effect of spring, realizes closing of discharge door.

Preferably, in step S5, the method for operating the driving mechanism includes: the push pedal that seals on a left side drives the push rod and removes, and the spring compression then drives vertical slider upward movement through horizontal slider and second connecting rod, and vertical slider drives the lever through first connecting rod and revolutes the rotation of axes to make clamp plate downstream, make the discharge door open, then the pneumatic cylinder drives the push pedal that seals on a left side and moves right, under the effect of spring, realizes closing of discharge door.

Compared with the prior art, the invention has the beneficial effects that:

1. the three separation spaces are arranged in the seed screening device and used for solving the problem of discharging seeds with better quality during seed screening, wherein the sealing push plate is matched with the through holes of the partition plates, the movable seeds can be driven to move into the separation spaces under the action of the sealing push plate, the left separation space and the right separation space correspond to the movement problems of the sealing push plate when moving leftwards and rightwards respectively, the seeds can be moved, the blanking work of the seeds can be realized by opening the separation spaces on the left side and the right side, and meanwhile, after water flows fall into the water tank, the water flows are conveyed into the left separation space and the right separation space through the water pump, so that the water in the separation tank always keeps a proper height, the subsequent seed screening work is convenient to carry out, the automation degree is high, frequent water adding is not needed, the water recycling is realized, the purpose of protecting water resources is achieved, the waste of the water resources is prevented, and the seed screening device has extremely high economic and environmental protection values.

2. The three separation spaces are arranged in the invention, if only the middle separation space is opened, the discharge of seeds is realized, in the mode, the seeds floating on the water surface are easy to fall down along with the water flow, and the water in the middle separation space is reduced by too much water surface when the seeds are collected, so that if the seed feeding is carried out at the moment, the seed screening effect is poor due to too low water surface, and if the water is added into the middle separation space at the moment, the water in the middle separation space is enabled to continuously flow under the action of the water flow, therefore, if the precipitation separation work of the seeds is realized, too much time needs to be waited, the screening efficiency is low, while the three separation spaces are adopted in the invention, the sealing push plates can quickly drive the seeds to move into the separation spaces at the left side and the right side, and the water surface height in the middle separation space is hardly influenced, therefore, seeds can be continuously added into the intermediate separation space without waiting, the automation degree is high, the economic use is realized, and the quality and the efficiency of seed screening are effectively improved.

3. According to the lever type seed screening machine, under the action of the spring, the pressing plate is matched with the discharging door to close the discharging door, when the sealing push plate moves, the sealing push plate can drive the push rod to move, the lever is driven to rotate through the first connecting rod and the second connecting rod, the discharging door is opened, therefore, full-automatic seed screening work can be achieved, manual assistance is not needed in the whole process, and operation is convenient.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a front view of the invention in its entirety (in a first operating condition);

fig. 3 is an overall front view of the present invention (in a second operating state;

FIG. 4 is a schematic view of the bushing of FIG. 1;

fig. 5 is an enlarged view of a portion a of fig. 1.

Description of reference numerals:

1, a left water pump; 2, a water tank; 3, a bushing plate; 31 a leak hole; 4, a hydraulic cylinder; 5, separating the box; 6, a gauze; 7 left separation space; 8, a material leakage port; 9 a floater port; 10 an intermediate separation space; 11 right separation space; 12 a left sealing push plate; 13 a middle sealing push plate; 14 a right sealing push plate; 15 a right water pump; 16 levers; 17 a rotating shaft; 18 a first link; 19 a vertical slide block; 20 a second link; 21 a horizontal slider; 22, sealing; 23 push rods; 24 springs; 25, pressing a plate; 26 discharge doors; 27 sealing the block; 28 a partition plate; 29 drive the rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 5, the present embodiment provides a full-automatic seed sorting device, which comprises a supporting frame, wherein the supporting frame is fixedly connected with a separation box 5, two separation plates 28 are arranged in the separation box 5, and the separation plates 28 enable the separation box 5 to form a left separation space 7, a middle separation space 10 and a right separation space 11 from left to right.

The separation plate 28 trisects the separation box 5, so that the areas of the three separation spaces are the same, the material leakage opening 8 is arranged above the middle separation space 10, the material leakage opening 8 is fixedly connected with the support frame, and seeds enter the middle separation space 10 through the material leakage opening 8. The middle separation space 10 is also provided with a floater opening 9, and the floater opening 9 can clean materials floating on the water surface.

The gauze 6 is arranged above the partition plate 28, the through holes are formed below the partition plate 28, the gauze 6 is used for filtering materials in the middle separation space 10, and under the action of the gauze 6, the materials floating on the middle separation space 10 cannot enter the left separation space 7 and the right separation space 11. And the water flow is free to pass through the screen 6 so that the water level in the separator tank 5 remains the same when the water level is higher than the screen 6.

Separation box 5 sliding connection has actuating lever 29, and actuating lever 29 is connected with pneumatic cylinder 4, and pneumatic cylinder 4 sets up in the outside of separation box 5 and with support frame fixed connection, and the left end of actuating lever 29 is worn out behind the separation box 5 and is linked to each other with pneumatic cylinder 4, and actuating lever 29 and separation box 5 sliding connection and junction are provided with sealed the pad.

The driving rod 29 is connected with a left sealing push plate 12, a middle sealing push plate 13 and a right sealing push plate 14 which are all matched with the through hole from left to right, the left sealing push plate 12 is arranged in the left separation space 7, and the middle sealing push plate 13 and the right sealing push plate 14 are both arranged in the through hole of the partition plate 28, so that the through hole is in a closed state.

Left separation space 7 and right separation space 11 all rotate and are connected with discharge door 26, and discharge door 26 is connected with actuating mechanism, and actuating mechanism is used for driving discharge door 26 to open, and 5 below in the separator box still are provided with water tank 2, are provided with the bushing 3 that is used for filtering the seed in the water tank 2.

A left water pump 1 and a right water pump 15 are arranged in the water tank 2, the left water pump 1 is communicated with the left separation space 7, and the right water pump 15 is communicated with the right separation space 11. Wherein a plurality of small opening 31 has been seted up to bushing 3, and the aperture of small opening 31 is less than the diameter of seed, therefore bushing 3 can realize the filtering action of seed, and 3 incline directions settings of bushing for the seed via bushing 3 landing to the collecting box of 2 one sides of water tank in.

For the water after filtering in the water tank 2, and left water pump 1 and right water pump 15 once at every interval fixed time operation to make the water in the water tank 2 carry in left separation space 7 and the right separation space 11, make the height of the surface of water in the water tank 2 remain parallel throughout, and this surface of water height is higher than the bottom of gauze 6.

The driving mechanism comprises a lever 16, the support frame is rotatably connected with the lever 16 through a rotating shaft 17, one end of the lever 16 is connected with a pressing plate 25 used for supporting a discharging door 26, the pressing plate 25 is arranged below the discharging door 26, and the bottom surfaces of the separation box 5 and the discharging door 26 are both contacted with the pressing plate 25.

Two ends of the separation box 5 are respectively connected with an independent push rod 23 through springs 24, the push rod 23 penetrates through the separation box 5 and is in sliding connection with the separation box 5, the push rod 23 is in contact with the left side of the left sealing push plate 12 or a gap is reserved between the push rod 23 and the left side of the left sealing push plate 12, and the push rod 23 penetrates through the separation box 5 and is connected with the other end of the lever 16. The joint of the push rod 23 and the separation box 5 is provided with a seal 22, and the seal 22 is used for preventing water leakage and the like when the push rod 23 moves.

The support frame is connected with a horizontal sliding block 21 moving along the horizontal direction and a vertical sliding block 19 moving along the vertical direction in a sliding mode, a push rod 23 is connected with the horizontal sliding block 21, the horizontal sliding block 21 is hinged to a second connecting rod 20, the other end of the second connecting rod 20 is hinged to the vertical sliding block 19, the vertical sliding block 19 is further hinged to a first connecting rod 18, and the other end of the first connecting rod 18 is hinged to the lever 16.

The spring 24 is sleeved on the push rod 23, the spring 24 is arranged in the separation box 5, one end of the spring 24 is connected with the inner wall of the separation box 5, and the other end of the spring 24 is connected with the push rod 23.

Wherein the vertical slider 19 is slidable only in the vertical direction and the horizontal slider 21 is slidable only in the horizontal direction. And the elastic force of the spring 24 is large enough to provide sufficient power to the pressure plate 25.

Under the action of the water flow, the discharging door 26 is pressed to open, but the lever 16 only rotates around the rotating shaft 17, so that if the lever 16 rotates, the acting force of the vertical slide block 19 is overcome through the first connecting rod 18, the vertical slide block 19 moves upwards, and then the horizontal slide block 21 is driven to move away from the separating box 5 through the second connecting rod 20. The spring of the spring 24 does not need to be too large to achieve a relative fixing of the position of the pressure plate 25, and the provision of the first link 18 and the second link 20 provides a sufficient degree of freedom for the rotation of the lever 16.

The through hole of the partition plate 28 is internally provided with a sealing block 27 arranged in the horizontal direction, the sealing block 27 is fixedly connected with the partition plate 28, and the left sealing push plate 12, the middle sealing push plate 13 and the right sealing push plate 14 are all connected with the sealing block 27 in a sliding manner. The sealing block 27 provides enough movement space for the movement of the left sealing push plate 12, the middle sealing push plate 13 and the right sealing push plate 14, so that when the left sealing push plate 12 and the right sealing push plate 14 drive the push rod 23 to move, the through hole is always in a closed state.

The invention also provides a use method of the full-automatic seed sorting device, which also comprises the following steps:

s1, firstly, adding water into the separation box 5, wherein the height of the water is higher than the bottom end of the gauze 6, so that the liquid level heights of the water in the left separation space 7, the middle separation space 10 and the right separation space 11 are the same, then, the seed is introduced into the middle separation space 10 through the drain hole 8, after waiting for a time T, seeds with better quality fall to the bottom surface of the middle separation space 10 under the buoyancy effect of the water, and the rest seeds float on the water surface;

s2: then, the hydraulic cylinder 4 is started, the hydraulic cylinder 4 moves rightwards through the driving rod 29, so that the left sealing push plate 12 and the middle sealing push plate 13 move into the through hole of the partition plate 28, at the moment, the right sealing push plate 14 moves to the right separation space 11, and the middle sealing push plate 13 drives the seeds with better quality to move to the right separation space 11;

s3: then the driving mechanism drives the discharging door 26 in the right separation space 11 to open, the seeds with better quality drop along with the water flow towards the direction of the bushing 3, the seeds are positioned on the bushing 3 at the moment, the water flow enters the water tank 2, and then the discharging door 26 is closed;

s4: after waiting for the time T, the hydraulic cylinder 4 moves leftward through the driving rod 29, so that the middle sealing push plate 13 and the right sealing push plate 14 move into the through hole of the partition plate 28, at this time, the left sealing push plate 12 moves to the left separation space 7, and the middle sealing push plate 13 drives the seeds with better quality to move to the left separation space 7;

s5: then the driving mechanism drives the discharge door 26 in the left separation space 7 to open, the seeds with better quality drop along with the water flow towards the direction of the bushing 3, the seeds are positioned on the bushing 3 at the moment, the water flow enters the water tank 2, and then the discharge door 26 is closed;

s6: waiting time T₁Then, the left water pump 1 delivers water into the left separation space 7, and the right water pump 15 delivers water into the right separation space 11, thereby completing the seed sorting work.

In step S3, the method for operating the driving mechanism includes: the push rod 23 is driven to move by the right sealing push plate 14, the spring 24 is compressed, the vertical sliding block 19 is driven to move upwards through the horizontal sliding block 21 and the second connecting rod 20, the vertical sliding block 19 drives the lever 16 to rotate around the rotating shaft 17 through the first connecting rod 18, so that the pressing plate 25 moves downwards, the discharge door 26 is opened, then the right sealing push plate 14 is driven by the hydraulic cylinder 4 to move leftwards, and the discharge door 26 is closed under the action of the spring 24.

In step S5, the method for operating the driving mechanism includes: sealing push pedal 12 on a left side drives push rod 23 and removes, and spring 24 compresses, then drives vertical slider 19 upward movement through horizontal slider 21 and second connecting rod 20, and vertical slider 19 drives lever 16 through first connecting rod 18 and rotates around pivot 17 to make clamp plate 25 downstream, make discharge door 26 open, then pneumatic cylinder 4 drives left side and seals push pedal 12 and move right, under spring 24's effect, realizes closing of discharge door 26.

It should be noted that, when the push pedal 13 is sealed in the middle of the pneumatic cylinder 4 promotes, because of the height of the surface of water remains the same in the separator box 5 all the time, therefore the pressure of water is also the same this moment, so the middle push pedal 13 that seals only can drive the seed and remove, and can not drive rivers and remove, therefore the pneumatic cylinder 4 drives the middle removal that seals the push pedal 13 and need not too fast or too slow, only need to make the middle push pedal 13 that seals remove can drive the seed remove to go out the discharge door 26 position can, thereby make things convenient for the work that drops of seed.

Wherein, the three separation spaces are used for solving the problem of discharging seeds with better quality when the seeds are screened, three of the sealing push plates are matched with the through holes of the partition plate 28, and under the action of the middle sealing push plate 13, can drive the moving seeds to move into a left separation space and a right separation space which respectively correspond to the left movement and the right movement of the middle sealing push plate 13, the moving problem of the seeds can realize the blanking work of the seeds by opening the discharge doors 26 at the left side and the right side, meanwhile, after the water flow falls into the water tank 2, the water flow is conveyed into the corresponding separation space through the corresponding water pump, so that the water in the separation tank 5 is always kept at a proper height, the subsequent seed screening work is facilitated, the automation degree is high, frequent water addition is not needed, the water recycling is realized, the purpose of protecting water resources is achieved, the waste of the water resources is prevented, and the water tank has high economic and environmental protection values.

In addition, if only open middle separation space 10, realize the ejection of compact of seed, among this kind of mode, the seed that floats on the surface of water is very easy to follow rivers and falls, and the water in middle separation space 10 can reduce too much the surface of water when the seed is collected, consequently if carry out the seed feeding this moment, then because of the surface of water is low excessively, the seed screening effect is relatively poor, and if add water in middle separation space 10 this moment, then can make the water in middle separation space 10 constantly flow under the effect of rivers.

Therefore, if the precipitation separation work of the seeds is to be realized, the excessive time needs to be waited, the screening efficiency is low, and the three separation spaces are adopted in the invention, the middle sealing and pushing plate 13 can drive the seeds to move into the separation spaces at the left side and the right side quickly, and the water level in the middle separation space 10 is hardly influenced, so that the seeds can be continuously added into the middle separation space 10 without waiting, the automation degree is high, the economic use is realized, and the quality and the efficiency of seed screening are effectively improved.

In addition, the mode of the lever 16 is arranged, under the action of the spring 24, the pressing plate 25 is matched with the discharging door 26, the closing of the discharging door 26 is realized, when the left sealing push plate 12 and the right sealing push plate 13 move, the left sealing push plate and the right sealing push plate can respectively drive the corresponding push rods 23 to move, the lever 16 is driven to rotate through the first connecting rod 18 and the second connecting rod 20, the opening of the discharging door 26 is realized, the full-automatic screening work of seeds can be realized, the whole process does not need manual assistance, and the operation is convenient.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.