CN106769172B - Automatic sampler for corn breeding - Google Patents
Automatic sampler for corn breeding Download PDFInfo
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- CN106769172B CN106769172B CN201710037472.8A CN201710037472A CN106769172B CN 106769172 B CN106769172 B CN 106769172B CN 201710037472 A CN201710037472 A CN 201710037472A CN 106769172 B CN106769172 B CN 106769172B
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- seed
- corn
- negative pressure
- seed cutting
- pressing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
Abstract
The invention belongs to the technical field of industrial automation, and particularly relates to an automatic corn breeding sampler which comprises a seed storage part, a single-seed separation part, a seed cutting part and a seed separating part which are sequentially arranged, wherein the seed cutting part comprises two cover plates, a seed cutting disc is arranged between the two cover plates and is connected with a power device, seed cutting grooves are uniformly distributed on the outer circle of the seed cutting disc, an elastic device is arranged at the bottom of each seed cutting groove, a pressing device is arranged between each seed cutting groove and the corresponding cover plate, blades are arranged on the outer sides of the seed cutting disc, and the blades are arranged corresponding to the seed separating part. Compared with the prior art, the full-automatic corn slicing method has the advantages that the full-automatic corn slicing is realized by utilizing the cooperation of the seed storing part, the single-grain separating part, the seed cutting part and the seed separating part. The operating efficiency reaches 80-160 grains per minute, and high-efficiency separation is realized to save labor force so as to improve the high-quality detection of single corn. The method has the advantages of low cost, high reliability, simple operation and easy use.
Description
Technical Field
The invention belongs to the technical field of industrial automation, and particularly relates to an automatic corn breeding sampler.
Background
At present, china is a big agricultural country in a development stage, and is also a big country with technical requirements on agricultural equipment. Agricultural breeding is a precondition for developing modern agricultural construction, and at present, the corn sections are mainly manually operated during breeding in China, so that the efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: at present, the corn sections are manually operated during breeding, the efficiency is low, and in order to solve the problems, the automatic corn breeding sampler is provided.
The object of the invention is achieved in the following way:
the utility model provides an automatic sampler of maize breeding, including the some of depositing kind, single grain separation part, surely kind of part and the part of branch kind that sets gradually, surely kind of part includes two apron, installs between two apron and surely kind of a dish, surely kind of a dish is connected with power device, and the equipartition has surely kind of a groove on surely kind of a dish excircle, is provided with resilient means in the bottom of surely kind of a groove, is provided with closing device between surely kind of a groove and apron, is provided with the blade in the outside of surely kind of a dish, and the blade corresponds the setting with the part of branch kind of a kind.
The compressing degree of the compressing device is adjustable.
Pressing grooves are arranged on two sides of the seed cutting groove and communicated with the seed cutting groove; the pressing device is arranged in the pressing groove and comprises an elastic block arranged in the pressing groove, and the outer end of the elastic block is connected with a roller.
The inner side of the cover plate is provided with a track matched with the pressing device, the track is in contact with the roller, and the track is used for adjusting the pressing degree of the pressing device.
The inner side of the cover plate is provided with a pressing strip, the pressing strip is arranged on the outer side of the seed cutting disc, the thickness of the rail is gradually increased to the maximum in the overlapped area of the rail and the pressing strip along the rotation direction of the seed cutting disc, and the thickness of the rail is gradually reduced in the overlapped area of the rail and the seed separating part.
The seed cutting disc is provided with a support frame below the seed separating part, the two ends of the support frame are respectively provided with a knife rest and a corn collecting frame, the knife rest is provided with a blade, the lower part of the knife rest is correspondingly provided with a corn tissue collecting frame, the corn tissue collecting frame is provided with a sensor, the sensor is connected with the seed separating part, and the corn collecting frame and the corn tissue collecting frame are correspondingly arranged on the seed separating part.
The seed separating part comprises a supporting box body, a seed separating disc is arranged in the supporting box body, a seed cutting part corresponding to the seed separating disc is arranged on the supporting box body, a falling device is arranged at the upper end of the seed cutting part, a single-grain separating part is arranged at the front end of the falling device, and a seed storing disc is arranged at the front end of the single-grain separating part.
Deposit kind of a dish and set up on depositing kind of a plate rail, deposit kind of a dish frame and set up on supporting box, single grain separation part is including setting up the negative pressure casing on depositing kind of a dish frame, is provided with the negative pressure dish in the negative pressure casing, is equipped with the negative pressure ring outside negative pressure dish cover, is provided with single grain adsorption hole on the negative pressure ring.
The lower end of the negative pressure shell is provided with a negative pressure pipe connecting port, the negative pressure plate is provided with an annular groove, and the annular groove corresponds to the single-particle adsorption hole on the negative pressure ring.
A corn falling slideway is arranged in the falling device.
Compared with the prior art, the full-automatic corn slicing method has the advantages that the full-automatic corn slicing is realized by utilizing the cooperation of the seed storing part, the single-grain separating part, the seed cutting part and the seed separating part. The operating efficiency reaches 80-160 grains per minute, and the high-efficiency separation is realized to save labor force so as to improve the quality detection of single corn. The method has the advantages of low cost, high reliability, simple operation and easy use.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic diagram of a partial structure.
FIG. 3 is a schematic diagram of the structure of a single-particle separation part with the negative pressure shell cover removed.
Fig. 4 is a schematic view of the structure of the negative pressure ring and the negative pressure disk.
FIG. 5 is a schematic view of a cut-away portion.
FIG. 6 is a schematic view of a cut-away portion of a side cover plate.
FIG. 7 is a schematic view of the seed separation part.
FIG. 8 is a schematic view of the internal structure of the seed separating part.
Wherein 1 is a side support plate; 2 is an upper supporting plate; 3 is a seed storage plate rack; 4, storing the seed tray; 5 is a stepping motor; 6 is a single-particle fraction; 7 is a descender; 8, cutting the seed into seed discs; 10 is a cover plate; 2.1 is a fixed support; 2.4 is a seed storage plate supporting subframe; 3.1 is a negative pressure pipe connector; 3.2 is a single-particle adsorption hole; 3.3 is a negative pressure shell; 3.4 is a negative pressure ring; 3.5 is a negative pressure plate; 3.6 is a negative pressure shell cover; 3.7 is a stepping motor frame; 4.1 is a hold-down device; 4.4 is a distance screw rod; 4.5 is a corn tissue collection rack; 4.7 is the tool holder; 4.8 is a corn collection rack; 4.10 is the propeller shaft; 4.11 is a holding strip; 4.12 is a track; 4.13 is a cutting groove; 4.14 is the place where the magnet is placed; 6.1 is a small lead screw bracket; 6.2 is a screw rod I; 6.3, a stepping motor I; 6.4 is a coupling; 6.5 is a screw mandrel II; 6.6 is a sample inoculation tray; 6.7 is a sample inoculation tray; 6.8 is a small polished rod bracket; 6.9 is a big polish rod bracket; 6.10 is a corn seed-inoculating tray; 6.11 is lead screw III; 6.12 is the corn inoculation tray; 6.13 is a screw rod IV.
Detailed Description
As shown in fig. 1-8, an automatic corn breeding sampler comprises a seed storage part, a single-grain separation part, a seed cutting part and a seed separation part which are arranged in sequence, wherein the seed storage part comprises a seed storage plate 4 for placing corn seeds, the rear end of the seed storage plate 4 is connected with the single-grain separation part 6, the single-grain separation part 6 takes out one corn from the seed storage plate 4, the corn taken out by the single-grain separation part 6 falls onto the seed cutting plate 8 of the seed cutting part through a falling device 7, the seed cutting plate 8 is provided with a seed cutting groove 4.13 and a pressing device 4.1, a blade for slicing is arranged below the seed cutting plate 8, a corn tissue collection frame 4.5 is arranged below the blade, the rear end of the blade is provided with a corn collection frame 4.8, and the lower ends of the corn tissue collection frame 4.5 and the corn collection frame 4.8 are provided with corresponding seed separation parts.
As shown in fig. 7 and 8, the seed separating part comprises a supporting box body, a seed cutting part corresponding to the seed separating part is arranged on the supporting box body, a falling device 7 is arranged at the upper end of the seed cutting part, a single-grain separating part 6 is connected to the upper end of the falling device 7, a seed storage disc 4 is arranged at the front end of the single-grain separating part 6, the seed storage disc 4 is arranged on the supporting box body through a seed storage disc frame 3, the seed storage disc 4 is connected with the seed storage disc frame 3 through a seed storage disc supporting subframe 2.4, and the height of one end, connected with the single-grain separating part 6, of the seed storage disc 4 is lower than that of one end far away from the single-grain separating part 6. The supporting box body includes collateral branch backup pad 1 and last backup pad 2, deposits a kind of dish frame 3 and sets up on last backup pad 2, and the both sides of depositing a kind of dish frame 3 are provided with the fixed bolster 2.1 of being connected with last backup pad 2.
The single-grain separation part 6 comprises a negative pressure shell 3.3 arranged on the seed storing plate rack 3 and a negative pressure shell cover arranged on the outer side of the negative pressure shell 3.3, fig. 3 is a schematic diagram of the structure of the single-grain separation part with the negative pressure shell cover removed, a negative pressure plate 3.5 is arranged in the negative pressure shell 3.3, the negative pressure plate 3.5 is driven by a stepping motor 5 to rotate, a negative pressure ring 3.4 is sleeved outside the negative pressure plate 3.5, single-grain adsorption holes 3.2 are evenly distributed on the negative pressure ring 3.4, a groove is arranged on the negative pressure shell 3.3, the groove corresponds to the single-grain adsorption holes 3.2 on the negative pressure ring 3.4, and a negative pressure pipe connecting port 3.1 is arranged at the lower end of the negative pressure shell 3.3. The negative pressure plate 3.5 is driven by a stepping motor to rotate, an annular groove is arranged at the outer edge of the negative pressure plate 3.5, and the annular groove corresponds to the single-particle adsorption hole 3.2 on the negative pressure ring 3.4.
As shown in fig. 5 and 6, the cutting part comprises two cover plates 10 arranged on the upper support plate 2, the two cover plates 10 are connected through a plurality of distance screws 4.4, a cutting seed tray 8 is arranged between the two cover plates 10, the cutting seed tray 8 is driven to rotate by a driven pulley, a pulley driving motor is arranged on the support box body, a driving pulley is connected to the output end of the pulley driving motor, the driving pulley is connected with the driven pulley through a belt, and a belt tensioning device is further arranged on the support box body. Seed cutting grooves 4.13 are uniformly distributed on the outer circle of the seed cutting disc 8, springs are arranged at the bottoms of the seed cutting grooves 4.13, the diameters of the springs are smaller than the width of the corns, pressing devices 4.1 are arranged on two sides of the seed cutting grooves 4.13, and the pressing degree of the pressing devices 4.1 is adjustable. The seed cutting grooves 4.13 on the seed cutting disc 8 are arranged corresponding to the single-grain adsorption holes 3.2 of the single-grain separation part 6, so that the corn in each single-grain adsorption hole 3.2 can be ensured to fall into the corresponding seed cutting groove 4.13 from the falling device 7 to the seed cutting part.
The cover plates 10 are provided with pressing strips 4.11, the inner sides of the two cover plates 10 are correspondingly provided with rails 4.12, the rails 4.12 correspond to the pressing devices 4.1, the pressing strips 4.11 are arranged on the outer sides of the seed cutting discs 8, the outer side faces for pressing and holding corns enable the exposed thickness of the corns on the seed cutting discs 8 to be consistent, the height of the rails 4.12 is gradually increased in a range overlapped with the pressing strips 4.11, the range overlapped with the pressing strips 4.11 of the rails 4.12 means that the two ends of the pressing strips 4.11 are overlapped with the center connecting line of the seed cutting discs 8 in a sector shape, the part of the track 4.12 falling into the sector range, when the corn pressed by the pressing strip 4.11 is rotated out of the pressing strip 4.11, the pressing device 4.1 completely presses the corn under the action of the track 4.12, the track 4.12 keeps the current thickness, the corn is always in a completely pressed state, the lower end of the seed cutting disc 8 is provided with a knife rest 4.7, the knife rest 4.7 is provided with a blade, a corn tissue collecting frame 4.5 is arranged below the blade, and the rear end of the knife rest 4.7 is provided with a corn collecting frame 4.8 along with the rotating direction of the seed cutting disc 8. The thickness of the rail 4.12 is reduced to zero from the position coinciding with the corn collecting rack 4.8 to the final position coinciding with the corn collecting rack 4.8.
Be provided with on surely kind of dish 8 with closing device 4.1 complex pressing groove, pressing groove and surely kind of groove 4.13 intercommunication, closing device 4.1 is including setting up the stereoplasm rubber or other elastic blocks in pressing groove, and the outer end of stereoplasm rubber is connected with the fore-set, and the outer end of fore-set is connected with the gyro wheel with track 4.12 complex. Along the rotatory direction of seed cutting dish 8, between frame 4.8 and pressure holding strip 4.11 are collected to the maize, all be provided with the resetting means who makes closing device 4.1 reset on two apron 10, and resetting means is magnet, and magnet adsorbs closing device 4.1's gyro wheel and makes it reset, and magnet is installed and is placed department 4.14 on apron 10.
The lower end of a corn tissue collecting rack 4.5 is provided with an antistatic pipeline I, the lower end of a corn collecting rack 4.8 is provided with an antistatic pipeline II, a sample inoculation plate 6.6 is arranged at a seed separating part corresponding to the antistatic pipeline I, a corn inoculation plate 6.10 is arranged at the lower end of the antistatic pipeline II, a moving device I of the sample inoculation plate 6.6 and a moving device II of the corn inoculation plate 6.10 are arranged on a supporting box body, a sensor connected with the moving device II and the moving device I is arranged on the antistatic pipeline I, when corn or corn tissue passes through a corresponding antistatic pipe, the sensor transmits a measured signal to the moving device connected with the sensor, after the moving device receives the signal, after a period of delay, the corresponding corn or corn tissue falls into the corn inoculation plate 6.10 or the sample inoculation plate 6.6, the moving work is carried out, and the corn or corn tissue falling next time is received.
The moving device II comprises a corn inoculation plate frame 6.12 connected to a corn inoculation plate 6.10, the corn inoculation plate frame 6.12 is connected with a screw mandrel III 6.11 in the length direction, the screw mandrel III 6.11 is driven by a stepping motor III, the corn inoculation plate frame 6.12 is connected with a large polished rod support 6.9 in the width direction, a polished rod IV arranged in parallel with the screw mandrel IV 6.13 is arranged on the supporting box body, the large polished rod support 6.9 is connected with the polished rod IV, and the screw mandrel IV 6.13 drives the corn inoculation plate frame 6.12 to move in the width direction by the driving of the stepping motor IV. And the stepping motor III and the stepping motor IV are connected with the sensor I. The moving device I comprises a sample inoculation plate frame 6.7 connected to a sample inoculation plate 6.6, the sample inoculation plate frame 6.7 is connected with a screw rod II 6.5 in the length direction, the screw rod II 6.5 is driven by a motor II, the sample inoculation plate frame 6.7 is connected with a small polished rod support 6.8 in the width direction, the small polished rod support 6.8 is connected with a polished rod I, the polished rod I is arranged in parallel with the screw rod I6.2, the small polished rod support 6.1 is parallel with the small polished rod support 6.8 and matched with the screw rod I6.2, the motor II is arranged on the small polished rod support 6.1, the screw rod I6.2 is driven by a stepping motor I6.3, and the stepping motor I6.3 is connected with the screw rod I6.2 through a coupler 6.4. Step motor I6.3 and step motor II are connected with sensor I.
The working process of the invention is as follows: corn grains are put in the seed storage plate 4, a certain included angle is formed between the seed storage plate 4 and the horizontal plane, because the belt wheel driving motor is arranged on the supporting box body, the belt wheel driving motor can generate vibration when moving, the corn of the seed storage plate 4 naturally slides to the single grain separation part 6 through the vibration, the single grain separation part 6 enables the corn grains to be adsorbed on the single grain adsorption hole 3.2 on the negative pressure ring 3.4 through negative pressure, the negative pressure is blocked when the corn falling device 7 is rotated, so that the corn falls into the falling device 7, the corn smoothly enters the seed cutting groove 4.13 on the seed cutting disc 8 of the seed cutting part through gravity and a track in the falling device 7, and a spring with a certain length is arranged in the seed cutting groove 4.13, so that the corn is exposed out of the seed cutting disc 8 for a certain distance. The seed cutting disc 8 is driven by an external belt pulley through a transmission shaft 4.10, along with the rotation of the seed cutting disc 8, the corn firstly encounters a pressing strip 4.11, the pressing of the pressing strip 4.11 ensures that the distance of the corn exposed out of the seed cutting disc 8 is consistent, and the premise is provided for ensuring the tissue thickness of the cut corn. While passing through the holding strip 4.11, a pair of rails 4.12 on the cover plate 10 gradually protrude, a pressing device 4.1 contacted with the rails gradually presses corn kernels, and hard rubber is added at one end of the top column to prevent the corn kernels from being damaged when the top column is pressed. As the seed-cutting disk 8 continues to rotate the corn to the cutting station, the blade is fixed to the blade holder 4.7 and the blade extension can be adjusted to adjust the slice thickness. The corn tissue that has fallen after slicing is collected by a funnel-like corn tissue collection rack 4.5 and guided through an antistatic tube I into a sample inoculation tray 6.6 in the seed section. When the corns enter the next station, the rail gradually descends to enable the top column to be loosened, meanwhile, the corns are thrown into the corn collecting frame 4.8 at the station under the pressure of a spring at the bottom of the seed cutting groove 4.13, the corns are guided into the position corresponding to the corn inoculation disc 6.10 of the seed separation part through the antistatic pipeline II, and meanwhile, the light sensor is triggered to send signals to the seed separation part. A pair of rubidium magnets is arranged on the cover plate 10, when the pressing device 4.1 rotates to the station, the rollers of the pressing device 4.1 are adsorbed, and the pressing device 4.1 is restored to a fully opened state to prepare for pressing the next corn. The seed separating part is a plane motion mechanism controlled by four stepping motors, and after receiving signals sent by the seed cutting part, the motors delay a certain time to start working so as to switch to the next station and enable the grooves of the two seed cutting discs to be corresponding. The whole seed cutting process can be completed by repeating the action.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (3)
1. The utility model provides a maize breeding automatic sampler which characterized in that: the seed cutting part comprises two cover plates, a seed cutting disc is arranged between the two cover plates and connected with a power device, seed cutting grooves are uniformly distributed on the excircle of the seed cutting disc, an elastic device is arranged at the bottom of each seed cutting groove, a compressing device is arranged between each seed cutting groove and the cover plates, a blade is arranged on the outer side of the seed cutting disc, and the blade is arranged corresponding to the seed separating part; pressing grooves are arranged on two sides of the seed cutting groove and are communicated with the seed cutting groove; the pressing device is arranged in the pressing groove and comprises an elastic block arranged in the pressing groove, and the outer end of the elastic block is connected with a roller; a track matched with the pressing device is arranged on the inner side of the cover plate, the track is in contact with the roller, and the track is used for adjusting the pressing degree of the pressing device;
the inner side of the cover plate is provided with a pressing strip, the pressing strip is arranged on the outer side of the seed cutting disc, the thickness of the track is gradually increased to the maximum in the area where the track is overlapped with the pressing strip along the rotation direction of the seed cutting disc, and the thickness of the track is gradually reduced in the area where the track is overlapped with the seed separating part;
a supporting frame is arranged below the seed cutting disc corresponding to the seed separating part, a knife rest and a corn collecting frame are respectively arranged at two ends of the supporting frame, a blade is arranged on the knife rest, a corn tissue collecting frame is correspondingly arranged below the knife rest, a sensor is arranged at the position of the corn tissue collecting frame and connected with the seed separating part, and the corn collecting frame and the corn tissue collecting frame are arranged corresponding to the seed separating part;
the seed separating part comprises a supporting box body, a seed separating disc is arranged in the supporting box body, a seed cutting part corresponding to the seed separating disc is arranged on the supporting box body, a falling device is arranged at the upper end of the seed cutting part, a single-grain separating part is arranged at the front end of the falling device, and a seed storing disc is arranged at the front end of the single-grain separating part;
the single-grain separation part comprises a negative pressure shell arranged on the seed storage plate frame, a negative pressure plate is arranged in the negative pressure shell, a negative pressure ring is sleeved outside the negative pressure plate, and a single-grain adsorption hole is formed in the negative pressure ring.
2. The automatic corn breeding sampler as claimed in claim 1, wherein: the lower end of the negative pressure shell is provided with a negative pressure pipe connecting port, the negative pressure plate is provided with an annular groove, and the annular groove corresponds to the single-particle adsorption hole on the negative pressure ring.
3. The automatic corn breeding sampler as claimed in claim 1, wherein: a corn falling slideway is arranged in the falling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037472.8A CN106769172B (en) | 2017-01-19 | 2017-01-19 | Automatic sampler for corn breeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037472.8A CN106769172B (en) | 2017-01-19 | 2017-01-19 | Automatic sampler for corn breeding |
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| Publication Number | Publication Date |
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| CN106769172A CN106769172A (en) | 2017-05-31 |
| CN106769172B true CN106769172B (en) | 2023-04-07 |
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| CN201710037472.8A Active CN106769172B (en) | 2017-01-19 | 2017-01-19 | Automatic sampler for corn breeding |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029638A (en) * | 2021-01-29 | 2021-06-25 | 德州市农业科学研究院 | Automatic sampler for corn breeding |
| CN113390681B (en) * | 2021-07-21 | 2022-07-08 | 浙江省农业科学院 | Corn breeding sampler for single grain separation |
| CN116858589B (en) * | 2023-05-29 | 2024-03-22 | 浙江大学 | Wheat breeding high-throughput sampling and slicing equipment and control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103238389A (en) * | 2013-05-10 | 2013-08-14 | 河南农业大学 | Full-automatic corn breeding slicer |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3321128B2 (en) * | 1999-11-05 | 2002-09-03 | 株式会社山本製作所 | Chipper |
| US7673545B1 (en) * | 2004-04-09 | 2010-03-09 | Giberson Richard T | Tissue slicing device |
| MX2007002306A (en) * | 2004-08-26 | 2007-04-16 | Monsanto Technology Llc | Automated seed sampler and methods of sampling, testing and bulking seeds. |
| CN200948612Y (en) * | 2006-04-11 | 2007-09-19 | 周建 | Vegetable cutting device |
| CN101573623A (en) * | 2006-11-13 | 2009-11-04 | 先锋高级育种国际公司 | Apparatus, method and system for handling, positioning, and/or automatically orienting objects |
| CN201640391U (en) * | 2010-03-02 | 2010-11-24 | 武汉工业学院 | Fresh lotus seed peeling machine |
| CN103252800B (en) * | 2013-05-10 | 2015-01-28 | 河南农业大学 | Semi-automatic corn breeding slicing machine |
| CN203592500U (en) * | 2013-12-04 | 2014-05-14 | 嘉兴艾博实业有限公司 | Corn slicing machine |
| CN104742173B (en) * | 2015-02-26 | 2016-11-02 | 江苏科技大学 | A kind of rotating disc type automatic cocoon cutting machine |
| CN206399685U (en) * | 2017-01-19 | 2017-08-11 | 河南农业大学 | A kind of corn breeding automatic sampler |
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2017
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103238389A (en) * | 2013-05-10 | 2013-08-14 | 河南农业大学 | Full-automatic corn breeding slicer |
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