Corn breeding automatic sampling device and method

Abstract

The application discloses a corn breeding automatic sampling device and relates to the technical field of corn sampling, which comprises a machine body, a storage bin fixedly connected to the upper end of the machine body, a mixing mechanism rotatably connected in the storage bin, a slicing mechanism fixedly connected to the inner wall below the storage bin and used for adsorbing and slicing corn in the storage bin, and a collecting mechanism fixedly connected to the inner wall of the machine body and used for collecting samples. The corn sample after slicing is collected by the collecting mechanism, the collecting mechanism rotates along with the reciprocating movement of the slicing mechanism, the sliced corn seeds are collected separately after slicing, the dislocation and cross contamination of the sample are avoided, the detection data distortion is avoided, and the breeding decision is affected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of corn sampling, in particular to a corn breeding automatic sampling device and method. BACKGROUND

[0002] Corn is an annual herbaceous plant of the family Poaceae, has the characteristics of drought tolerance, cold tolerance, and poor tolerance, and has good environmental adaptability and high nutritional value. It is not only a high-yield grain crop in China, but also an important feed source for animal husbandry and aquaculture. Therefore, corn breeding is of great significance in improving corn yield, quality and stress resistance. In the corn breeding operation, the corn breeding state often needs to be detected.

[0003] The Chinese patent with the publication number "CN119043782A" provides a corn and soybean breeding automatic sampling machine. The application stirs the seeds by setting the seed picking component, and the seeds are sucked by the suction cup through negative pressure. Then the seed picking component rises and moves the seeds to the blade to slice and collect the seeds, improving the randomness of seed sampling. However, in the application, when the seeds are sliced for sampling, the sliced seeds fall into the annular groove in the flywheel ring. The flywheel ring continues to rotate for a certain number of turns after slicing, thereby moving the sliced seeds to the sampling window. However, it is difficult for the worker to take out the sliced seeds during the rotation of the flywheel ring. In addition, a seed usually needs to be sliced multiple times to slice and sample different tissues of the corn seed. In the application, after slicing the seeds once, the first connecting rod and the second connecting rod are contracted under the action of the spring. Then the seed on the suction cup driven by the mixing slide cylinder moves away from the rubber pad. Therefore, the power of the flywheel ring rotation disappears, which may cause the sliced seeds of the next time to fall into the adjacent annular groove, resulting in sample misplacement and cross contamination. SUMMARY

[0004] The purpose of the present application is to provide a corn breeding automatic sampling device and method to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose of the application, the following technical solutions are adopted:

[0006] The corn breeding automatic sampling device provided by the application comprises a machine body, a storage bin fixedly connected to the upper end of the machine body, a mixing mechanism rotatably connected in the storage bin, a slicing mechanism fixedly connected to the inner wall below the storage bin for adsorbing and slicing the corn in the storage bin, and a collecting mechanism fixedly connected to the inner wall of the machine body for collecting the sample.

[0007] Further, the slicing mechanism comprises a mounting plate fixedly connected to the inner wall of the machine body, a sliding groove is formed in the mounting plate, a first screw rod is rotationally connected in the sliding groove, a first sliding block is threadedly connected to the first screw rod, an adsorption tube is rotationally connected to the first sliding block, suction cups are fixedly connected to the two ends of the adsorption tube, a first motor is fixedly connected to one end of the mounting plate, the output end of the first motor is fixedly connected with the first screw rod, a push rod is fixedly connected to the lower end of the first sliding block, a drive rack is fixedly connected to one side of the first sliding block close to the adsorption tube, a second motor is fixedly connected to one side of the mounting plate, the output end of the second motor is fixedly connected with a rotating disc, a connecting shaft is rotationally connected to the rotating disc, a connecting rod is fixedly connected to the connecting shaft, a blade is hingedly connected to the end of the connecting rod away from the rotating disc, the blade is slidingly connected with the mounting plate, and a turnover assembly is fixedly connected to the adsorption tube.

[0008] Further, the turnover assembly comprises a half gear fixedly connected to the adsorption tube, a rotating groove is formed in one side of the center of the mounting plate, a fixed rack is fixedly connected to the inner wall of the rotating groove, a limiting rod is fixedly connected to the outer wall of the adsorption tube close to the half gear, and the limiting rod is located in the sliding groove.

[0009] Further, the mixing mechanism comprises a rotating shaft rotationally connected in the storage bin, a mixing rod is fixedly connected to the rotating shaft, a drive gear is fixedly connected to the end of the rotating shaft extending out of the storage bin, the drive gear is engaged with the drive rack, the mixing rod is located in the storage bin, and a discharge port is formed in one end of the storage bin.

[0010] Further, the collecting mechanism comprises a fixing seat fixedly connected to the inner wall of the machine body, an installation disc is rotationally connected to the fixing seat, a plurality of placement grooves are arrayed on the installation disc, a sliding groove is symmetrically formed in each placement groove, a second screw rod is rotationally connected in each placement groove, a second sliding block is symmetrically threadedly connected to the second screw rod, a fixing rod is fixedly connected to each second sliding block, a connecting rod is hingedly connected to one side of the fixing rod, a placement plate is commonly hingedly connected to one side of the connecting rod away from the fixing rod, the placement plate is used for placing a sampling bottle, a blocking plate is fixedly connected to the inner wall of the machine body close to the installation disc, an avoiding groove is formed in one side of the blocking plate close to the installation disc, the avoiding groove corresponds to the fixing rod, a fixing shaft is fixedly connected to the center of the installation disc, a drive shaft is rotationally connected to the end of the fixing shaft away from the installation disc, a drive plate is fixedly connected to the drive shaft, a drive groove is formed in the drive plate, the drive groove is V-shaped, the drive groove is slidingly connected with the push rod, a ratchet wheel is fixedly connected to one end of the fixing shaft close to the drive plate, a pawl is hingedly connected to one side of the drive plate corresponding to the ratchet wheel, the pawl cooperates with the ratchet wheel, and a guide tube is fixedly connected to the inner wall of the machine body close to the sampling bottle.

[0011] Further, the side of the machine body corresponding to the blocking plate is provided with an outlet for taking out the sampling bottle, and the side of the machine body close to the sample outlet is provided with an inlet for placing the sampling bottle.

[0012] Further, one end of the guide pipe corresponds to the bottle mouth of one of the sampling bottles, and the other end of the guide pipe corresponds to the side of the mounting plate close to the blade.

[0013] Further, the angle between the two sides of the driving groove corresponds to the number of placing grooves.

[0014] Further, one end of the adsorption pipe is fixedly connected with a pump machine, which is used for the adsorption pipe to adsorb the corn kernels.

[0015] An automatic sampling method for corn breeding based on the above device comprises the following steps:

[0016] Step 1: Place the sampling bottles and corn kernels in the collecting mechanism and the storage bin respectively;

[0017] Step 2: Start the slicing mechanism, and the adsorption pipe cyclically adsorbs the corn kernels in the storage bin and moves them to the blade, and the blade slices the corn kernels;

[0018] Step 3: The sliced corn kernels are slid to the sampling bottle of the collecting mechanism through the guide pipe, and the sampling is completed.

[0019] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0020] The slicing mechanism is set to move back and forth to adsorb and slice the corn kernels in the storage bin, and the mixing mechanism is driven to mix the corn in the storage bin during the reciprocating movement of the slicing mechanism, so as to ensure the randomness of sampling, and the mixing and sampling slicing processes of the corn in the storage bin are completed in one reciprocating movement of the slicing mechanism, thereby simplifying the process and improving the work efficiency.

[0021] The collecting mechanism is set to collect the sliced corn samples, and the collecting mechanism rotates with the reciprocating movement of the slicing mechanism, so that the sliced corn kernels are collected separately after slicing, the misplacement and cross contamination of the samples are avoided, the detection data distortion is avoided, and the breeding decision is affected.

[0022] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute improper limitations on the present application.

[0024] Figure 1 is the schematic diagram of the overall structure of the present application;

[0025] Figure 2 is the schematic diagram of the connecting structure of the slicing mechanism and the collecting mechanism of the present application;

[0026] Figure 3 is the schematic diagram of the structure of the mixing mechanism of the present application;

[0027] Figure 4 is the schematic diagram of the structure of the slicing mechanism of the present application;

[0028] Figure 5 is the bottom view of the slicing mechanism of the present application;

[0029] Figure 6 is the schematic diagram of the connecting structure of the second motor and the blade of the present application;

[0030] Figure 7 is the schematic diagram of the transmission structure of the pushing rod and the fixed shaft of the present application;

[0031] Figure 8 is the schematic diagram of the overall structure of the collecting mechanism of the present application;

[0032] Figure 9 is the sectional view of the collecting mechanism of the present application.

[0033] In the drawings:

[0034] 1, body; 2, storage bin; 3, mixing mechanism; 4, slicing mechanism; 5, collecting mechanism; 6, mounting plate; 7, sliding groove; 8, first screw rod; 9, first sliding block; 10, suction tube; 11, suction disc; 13, first motor; 14, pushing rod; 15, driving rack; 17, second motor; 18, rotating disc; 19, connecting shaft; 20, connecting rod; 21, blade; 22, half gear; 23, rotating groove; 24, fixed rack; 25, limiting rod; 26, rotating shaft; 27, mixing rod; 28, driving gear; 29, discharge port; 31, fixed seat; 32, mounting disc; 33, placing groove; 34, sliding groove; 35, second screw rod; 36, second sliding block; 37, fixed rod; 38, connecting rod; 39, placing plate; 40, blocking plate; 41, avoiding groove; 42, fixed shaft; 43, driving shaft; 44, driving plate; 45, driving groove; 46, ratchet wheel; 47, pawl; 48, guide tube; 49, outlet; 50, inlet. DETAILED DESCRIPTION

[0035] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0036] Referring to Figures 1 to 9 The present application provides a corn breeding automatic sampling device, including body 1, the upper end of the body 1 is fixedly connected with storage bin 2, the mixing mechanism 3 is rotatably connected in the storage bin 2, the inner wall of the body 1 below the storage bin 2 is fixedly connected with the slicing mechanism 4 for adsorbing and slicing the corn in the storage bin 2, the inner wall of the body 1 is fixedly connected with the collecting mechanism 5 for collecting samples.

[0037] The reciprocating movement of the slicing mechanism 4 set in the storage bin 2 is adsorbed and sliced, and the mixing mechanism 3 is driven to mix the corn in the storage bin 2 during the reciprocating movement of the slicing mechanism 4, so as to ensure the randomness of sampling, the mixing and sampling slicing process of the corn in the storage bin 2 is completed in one reciprocating movement of the slicing mechanism 4, the process is simplified, and the work efficiency is improved. The corn sample after slicing is collected by the collecting mechanism 5, the collecting mechanism 5 rotates with the reciprocating movement of the slicing mechanism 4, so that the sliced corn seeds are collected separately after slicing, avoiding misplacement and cross contamination of the sample, avoiding distortion of detection data, and affecting breeding decision.

[0038] Referring to Figures 4 to 6 The slicing mechanism 4 includes a mounting plate 6 fixedly connected to the inner wall of the body 1, a sliding groove 7 is formed in the mounting plate 6, a first screw rod 8 is rotatably connected in the sliding groove 7, a first sliding block 9 is threadedly connected to the first screw rod 8, an adsorption tube 10 is rotatably connected to the first sliding block 9, suction cups 11 are fixedly connected to both ends of the adsorption tube 10, a first motor 13 is fixedly connected to one end of the mounting plate 6, the output end of the first motor 13 is fixedly connected with the first screw rod 8, a push rod 14 is fixedly connected to the lower end of the first sliding block 9, a drive rack 15 is fixedly connected to one side of the first sliding block 9 close to the adsorption tube 10, a second motor 17 is fixedly connected to one side of the mounting plate 6, the output end of the second motor 17 is fixedly connected with a rotating disc 18, a connecting shaft 19 is rotatably connected to the rotating disc 18, a connecting rod 20 is fixedly connected to the connecting shaft 19, a blade 21 is hingedly connected to one end of the connecting rod 20 away from the rotating disc 18, the blade 21 is slidingly connected to the mounting plate 6, and a turnover assembly is fixedly connected to the adsorption tube 10.

[0039] Referring toFigure 4 The turning assembly comprises a half gear 22 fixedly connected to the adsorption pipe 10, a rotating groove 23 is formed on one side of the center of the sliding groove 7, a fixed rack 24 is fixedly connected to the inner wall of the rotating groove 23, a limiting rod 25 is fixedly connected to the outer wall of the adsorption pipe 10 close to the half gear 22, and the limiting rod 25 is located in the sliding groove 7.

[0040] When slicing, the first motor 13 is started, the first motor 13 drives the first screw rod 8 to rotate, the first screw rod 8 drives the first sliding block 9 to move, the first sliding block 9 drives the adsorption pipe 10 to move, when the first sliding block 9 moves to the rotating groove 23, the half gear 22 is engaged with the fixed rack 24, when the first sliding block 9 continues to move, the half gear 22 slides on the fixed rack 24, the half gear 22 rotates, the half gear 22 drives the adsorption pipe 10 to rotate by 180 degrees, the adsorption pipe 10 drives the limiting rod 25 to rotate, the limiting rod 25 moves into the sliding groove 7 after rotating by 180 degrees, so as to prevent the adsorption pipe 10 from rotating again, the adsorption pipe 10 drives the adsorbing disc 11 to move into the storage bin 2 to adsorb a corn seed, after adsorbing a corn seed, the first motor 13 drives the first screw rod 8 to reverse, which is opposite to the above process, the adsorption pipe 10 drives the adsorbed corn seed to move to the blade 21, the second motor 17 is started, the second motor 17 drives the rotating disc 18 to rotate, the rotating disc 18 drives the connecting rod 20 to reciprocate, the connecting rod 20 drives the blade 21 to reciprocate, so as to slice the corn seed, which simplifies the process and improves the work efficiency.

[0041] Please refer to Figure 3 and Figure 5 The mixing mechanism 3 comprises a rotating shaft 26 rotatably connected in the storage bin 2, a mixing rod 27 is fixedly connected to the rotating shaft 26, one end of the rotating shaft 26 extending out of the storage bin 2 is fixedly connected with a driving gear 28, the driving gear 28 is engaged with the driving rack 15, the mixing rod 27 is located in the storage bin 2, and a discharge port 29 is formed in one end of the storage bin 2.

[0042] When the first sliding block 9 moves, the driving rack 15 moves, the driving rack 15 drives the driving gear 28 to rotate, the driving gear 28 drives the rotating shaft 26 to rotate, the rotating shaft 26 drives the mixing rod 27 to rotate, the mixing rod 27 rotates to stir and mix the corn seeds in the storage bin 2, so that the randomness of the adsorbed corn seeds is higher, the sampling randomness is improved, the data representativeness is ensured, when the adsorption pipe 10 moves to the discharge port 29, the adsorption pipe 10 pushes the hinged baffle at the discharge port 29 to adsorb the corn seeds in the storage bin 2, when the adsorption pipe 10 moves out of the discharge port 29, the baffle blocks the corn seeds in the storage bin 2, so as to prevent the corn seeds from falling.

[0043] Please refer toFigure 8 And Figure 9 The collecting mechanism 5 comprises a fixed seat 31 fixedly connected to the inner wall of the body 1, a mounting disc 32 rotatably connected to the fixed seat 31, a plurality of placement grooves 33 arranged on the mounting disc 32, a plurality of sliding grooves 34 symmetrically formed on the placement grooves 33, a second screw rod 35 rotatably connected in the placement groove 33, a second sliding block 36 symmetrically and threadedly connected on the second screw rod 35, a fixed rod 37 fixedly connected to each second sliding block 36, a connecting rod 38 hingedly connected to one side of the fixed rod 37, a placement plate 39 hingedly connected to the side, away from the fixed rod 37, of the connecting rod 38, the placement plate 39 being used for placing a sampling bottle, a blocking plate 40 fixedly connected to the inner wall of the body 1 close to the mounting disc 32, an avoiding groove 41 formed on the side, close to the mounting disc 32, of the blocking plate 40, the avoiding groove 41 corresponding to the fixed rod 37, a fixed shaft 42 fixedly connected to the center of the mounting disc 32, a driving shaft 43 rotatably connected to the end, away from the mounting disc 32, of the fixed shaft 42, a driving plate 44 fixedly connected to the driving shaft 43, a driving groove 45 formed on the driving plate 44, the driving groove 45 being V-shaped and in sliding connection with the pushing rod 14, a ratchet wheel 46 fixedly connected to the end, close to the driving plate 44, of the fixed shaft 42, a pawl 47 hingedly connected to the side, corresponding to the ratchet wheel 46, of the driving plate 44, the pawl 47 cooperating with the ratchet wheel 46, and a guide pipe 48 fixedly connected to the inner wall of the body 1 close to the sampling bottle.

[0044] When the sample bottle is placed on the placing plate 39, the placing plate 39 moves downward under the gravity of the sample bottle, the movement of the placing plate 39 drives the movement of the connecting rod 38, the movement of the connecting rod 38 drives the movement of the two fixed rods 37 away from each other, the sample bottle enters the placing groove 33, when the first sliding block 9 moves toward the blade 21, the push rod 14 moves with the first sliding block 9, the movement of the push rod 14 in the driving groove 45, that is, the movement of the push rod 14 drives the rotation of the driving plate 44 along the inner wall of the driving groove 45, the rotation of the driving plate 44 drives the rotation of the pawl 47, the rotation of the pawl 47 drives the rotation of the ratchet wheel 46, the rotation of the ratchet wheel 46 drives the rotation of the fixed shaft 42, the rotation of the fixed shaft 42 drives the rotation of the mounting disc 32, the rotation of the mounting disc 32 drives the rotation of the sample bottle, the sample bottle corresponds to one end of the guide pipe 48, and the sliced corn kernels slide into the sample bottle along the guide pipe 48 after being sliced, when the slicing is completed and the first sliding block 9 moves toward the storage bin 2, the first sliding block 9 drives the movement of the push rod 14, the movement of the push rod 14 drives the reverse rotation of the driving plate 44, the rotation of the driving plate 44 drives the rotation of the pawl 47, at this time, the pawl 47 slides on the ratchet wheel 46, the ratchet wheel 46 does not rotate, and there is enough time for the sliced corn kernels to slide into the sample bottle, when the sample bottle moves to the blocking plate 40, the fixed rods 37 abut against the blocking plate 40 in priority, so that the fixed rods 37 move, the movement of the fixed rods 37 drives the movement of the second sliding block 36, the movement of the second sliding block 36 drives the rotation of the second screw rod 35, the threads on the two ends of the second screw rod 35 are opposite in rotation direction, so that the two fixed rods 37 move toward each other, the movement of the fixed rods 37 drives the movement of the connecting rod 38, the movement of the connecting rod 38 drives the movement of the placing plate 39, so as to drive the sample bottle containing the corn kernels to the mounting disc 32, and then the upper end of the fixed rod 37 passes through the blocking plate 40 through the avoiding groove 41, so as to place another sample bottle, and the above process is repeated to complete the slicing of the corn kernels, the single corn kernel slice is placed in a separate sample bottle, so as to avoid the mixing of different corn kernel slices, prevent sample misplacement cross-contamination, avoid detection data distortion, and affect breeding decisions.

[0045] Please refer to Figure 1 , one side of the machine body 1 corresponding to the blocking plate 40 is provided with an outlet 49 for taking out the sample bottle, and one side of the machine body 1 close to the sample outlet 49 is provided with an inlet 50 for placing the sample bottle.

[0046] Please refer to Figure 2 , one end of the guide pipe 48 corresponds to the bottle opening of one of the sample bottles, and the other end of the guide pipe 48 corresponds to one side of the mounting plate 6 close to the blade 21, so that the sliced corn kernels directly slide into the sample bottle through the guide pipe 48, and the single corn kernel slice is separately sealed and placed, so as to avoid sample misplacement cross-contamination.

[0047] Please refer to Figure 2The angle between the two sides of the driving groove 45 corresponds to the number of the placing grooves 33, and the angle between the two sides of the driving groove 45 is 60 degrees, and the number of the placing grooves 33 is six.

[0048] One end of the adsorption tube 10 is fixedly connected with a pump machine, which is used for the adsorption tube 10 to suck the corn seeds.

[0049] A corn breeding automatic sampling method comprises the following steps:

[0050] Step 1: the sampling bottle and the corn seeds are respectively placed in the collecting mechanism 5 and the storage bin 2;

[0051] Step 2: the slicing mechanism 4 is started, the adsorption tube 10 cyclically adsorbs the corn seeds in the storage bin 2 and moves to the blade 21, and the blade 21 slices the corn seeds;

[0052] Step 3: the sliced corn seeds slide to the sampling bottle in the collecting mechanism 5 through the guide pipe 48, and the sampling is completed.

[0053] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art, according to the technical scheme and the inventive concept of the present application, within the technical range disclosed by the present application, makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. An automatic sampling device for maize breeding, characterized in that, Includes a body (1), a storage bin (2) is fixedly connected to the upper end of the body (1), a mixing mechanism (3) is rotatably connected inside the storage bin (2), a slicing mechanism (4) for adsorbing and slicing corn in the storage bin (2) is fixedly connected to the inner wall of the body (1) below the storage bin (2), and a collection mechanism (5) for collecting samples is fixedly connected to the inner wall of the body (1). The slicing mechanism (4) includes a mounting plate (6) fixedly connected to the inner wall of the machine body (1). A sliding groove (7) is provided on the mounting plate (6). A first screw (8) is rotatably connected in the sliding groove (7). A first sliding block (9) is threadedly connected to the first screw (8). An adsorption tube (10) is rotatably connected to the first sliding block (9). Suction cups (11) are fixedly connected to both ends of the adsorption tube (10). A first motor (13) is fixedly connected to one end of the mounting plate (6). The output end of the first motor (13) is fixedly connected to the first screw (8). The lower end of the first sliding block (9) is fixedly connected to... A push rod (14) is fixedly connected to a drive rack (15) on the side of the first sliding block (9) near the adsorption tube (10). A second motor (17) is fixedly connected to one side of the mounting plate (6). A rotating disk (18) is fixedly connected to the output end of the second motor (17). A connecting shaft (19) is rotatably connected to the rotating disk (18). A connecting rod (20) is fixedly connected to the connecting shaft (19). A blade (21) is hinged to the end of the connecting rod (20) away from the rotating disk (18). The blade (21) is slidably connected to the mounting plate (6). A flipping assembly is fixedly connected to the adsorption tube (10). The flipping assembly includes a half gear (22) fixedly connected to the adsorption tube (10), and the mounting plate (6) has a rotating groove (23) on one side of the center of the sliding groove (7). A fixed rack (24) is fixedly connected to the inner wall of the rotating groove (23). A limiting rod (25) is fixedly connected to the outer wall of the adsorption tube (10) near the half gear (22). The limiting rod (25) is located in the sliding groove (7). The collection mechanism (5) includes a fixed base (31) fixedly connected to the inner wall of the body (1). A mounting plate (32) is rotatably connected to the fixed base (31). Placement slots (33) are arrayed on the mounting plate (32). Sliding grooves (34) are symmetrically opened on the placement slots (33). A second screw (35) is rotatably connected in the placement slots (33). A second sliding block (36) is symmetrically threaded on the second screw (35). A fixed rod (37) is fixedly connected to each second sliding block (36). A connecting rod (38) is hinged to one side of the fixed rod (37). A placement plate (39) is hinged to the side of the connecting rod (38) away from the fixed rod (37). The placement plate (39) is used to place the sampling bottle. A barrier plate (40) is fixedly connected to the inner wall of the body (1) near the mounting plate (32). A clearance groove (41) is provided on one side near the mounting plate (32), the clearance groove (41) is corresponding to the fixed rod (37), a fixed shaft (42) is fixedly connected to the center of the mounting plate (32), a drive shaft (43) is rotatably connected to one end of the fixed shaft (42) away from the mounting plate (32), a drive plate (44) is fixedly connected to the drive shaft (43), a drive groove (45) is provided on the drive plate (44), the drive groove (45) is V-shaped, the drive groove (45) is slidably connected to the push rod (14), a ratchet (46) is fixedly connected to one end of the fixed shaft (42) near the drive plate (44), a pawl (47) is hinged to one side of the drive plate (44) corresponding to the ratchet (46), the pawl (47) and the ratchet (46) cooperate with each other, and a guide tube (48) is fixedly connected to the inner wall of the body (1) near the sampling bottle.

2. The automatic sampling device for maize breeding according to claim 1, characterized in that, The mixing mechanism (3) includes a rotating shaft (26) rotatably connected to the storage bin (2), a mixing rod (27) fixedly connected to the rotating shaft (26), a drive gear (28) fixedly connected to one end of the rotating shaft (26) extending outside the storage bin (2), the drive gear (28) meshing with the drive rack (15), the mixing rod (27) located inside the storage bin (2), and a discharge port (29) opened at one end of the storage bin (2).

3. The automatic sampling device for maize breeding according to claim 1, characterized in that, The body (1) has an outlet (49) for taking out the sampling bottle on the side corresponding to the barrier plate (40), and the body (1) has an inlet (50) for placing the sampling bottle on the side near the sample outlet (49).

4. The automatic sampling device for maize breeding according to claim 1, characterized in that, One end of the guide tube (48) corresponds to the mouth of one of the sampling bottles, and the other end of the guide tube (48) corresponds to the side of the mounting plate (6) near the blade (21).

5. The automatic sampling device for maize breeding according to claim 1, characterized in that, The angle between the two sides of the drive slot (45) corresponds to the number of placement slots (33).

6. The automatic sampling device for maize breeding according to claim 1, characterized in that, A pump is fixedly connected to one end of the adsorption tube (10) for adsorbing corn kernels.

7. An automated sampling method for maize breeding, based on the apparatus of claim 1, comprising the following steps: Step 1: Place the sampling bottle and corn kernels in the collection mechanism (5) and storage bin (2) respectively; Step 2: Start the slicing mechanism (4), the adsorption tube (10) circulates to adsorb the corn kernels in the storage bin (2) and move them to the blade (21), the blade (21) slices the corn kernels; Step 3: The sliced ​​corn kernels slide through the guide tube (48) into the sampling bottle of the collection mechanism (5) to complete the sampling.

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