CN102696308A - Nozzle type automatic precision rice seedling raising seeding device - Google Patents
Nozzle type automatic precision rice seedling raising seeding device Download PDFInfo
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- CN102696308A CN102696308A CN2012101377449A CN201210137744A CN102696308A CN 102696308 A CN102696308 A CN 102696308A CN 2012101377449 A CN2012101377449 A CN 2012101377449A CN 201210137744 A CN201210137744 A CN 201210137744A CN 102696308 A CN102696308 A CN 102696308A
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Abstract
The invention discloses a nozzle type automatic precision rice seedling raising seeding device. The device comprises a frame, a vacuum seed sucking assembly, a pneumatic positioning assembly, a seedling tray conveying assembly, a seed tray and a controller; the vacuum seed sucking assembly consists of a seed sucking component, an electromagnetic valve, a negative pressure fan and the like; the negative pressure fan, the electromagnetic valve and the seed sucking component are connected in series through a corrugated pipe; the opening and the closing of the corrugated pipe are controlled by the electromagnetic valve, so that pressure in the seed sucking component is intermittently converted from a negative pressure state to a normal pressure state and seed sucking and seed dropping processes are completed; the pneumatic positioning assembly consists of a lifting guide rail, a lifting cylinder, a translation guide rail, a translation cylinder and the like and is used for completing lifting and translating of the seed sucking component; and the seedling tray conveying assembly is used for conveying seedling trays and accurately positioning the seedling trays, and the whole device is controlled by the controller. According to the device, the precision seeding on rice seedling raisings can be realized, the seeding quantity is precise and adjustable, the seed distance is accurately controlled, seeds are distributed uniformly in each seedling tray, and the seeds are not broken in a seeding process; and the device is suitable for seeding dry rice seeds, soaked seeds and germinated seeds, and is automatic in the seeding process.
Description
Technical field
The present invention relates to the automatic seeding apparatus of the smart amount of a kind of suction nozzle formula raising rice seedlings, be used for rice industrial sprout cultivation automatically, precision drilling, the seed spacing is even, has good adaptability to doing kind, seed soaking, vernalization kind, and seed is not had fragmentation, sows process automation.
Background technology
Rice industrial sprout cultivation is the important step of rice planting machineization, to improving rice yield and rice planting machine level material impact is arranged.At present, rice industrial sprout cultivation planter mainly contains grooved pulley type, cylinder air-sucking type, orifice plate air-sucking type, though all can accomplish the sowing operation, seeding quality is poor, and then influences the quality of rice shoot.When sowing like the grooved pulley type seeding apparatus; Seeding quantity is moved by sheave rotary speed and seedling dish and cooperates realization, and seeding quantity is difficult for accurately control, and sheave is got and planted and carry and very easily destroy seed in kind of the subprocess; Particularly destroy serious to seed, the vernalization seed that soaked; Therefore can not broadcast and soak seed, vernalization seed, because the sheave sowing is pulsed, seed is skewness in the seedling dish in addition; Cylinder air-sucking type seeding apparatus is in getting kind of process, and cylinder and seed friction also very easily destroy seed, inhales kind of indoor vacuum and guarantees through fit clearance, uses a period of time the phenomenon that influences such as obstruction, gas leakage are used to occur; Orifice plate air-sucking type seeding apparatus is adsorbed on seed on the orifice plate; But inhale whole plane of orifice plate and seed plane contact when planting, the hole suction at orifice plate edge is planted more, and the hole in the middle of the orifice plate is because the suction of factors such as interference in air flow is planted inhomogeneous; Cause the interior seed skewness of seedling dish after planting; Inhale kind of a preceding seed in addition and be necessary for uniform seed thin layer, need machinery to scrape kind, seed and the vernalization seed that soaks also had certain breakage.Therefore, a kind of seeding quantity accurate and adjustable of needs development, seed spacing are accurately controlled especially, seed is evenly distributed, seed is not had breakage, the automatic raising rice seedlings seeding apparatus of sowing process.
Summary of the invention
The objective of the invention is in order to overcome existing raising rice seedlings planting with sowing machine amount inaccuracy, present situations such as seeding uniformity is poor, the seed spacing can not be controlled, seed percentage of damage height, but a kind of seeding quantity accurate and adjustable is provided, the seed spacing is accurate, seeding uniformity good, to the automatic seeding apparatus of the smart amount of the unabroken suction nozzle formula of seed raising rice seedlings.
The technical scheme that technical solution problem of the present invention is taked is:
The automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings comprises frame, vacuum suction kind of an assembly, pneumatic locating assembly, seedling dish delivery assembly, kind dish and controller:
Vacuum is inhaled kind of an assembly and is had suction kind of parts, vibrator, magnetic valve, negative-pressure air fan; The negative pressure mouth of negative-pressure air fan is connected with magnetic valve one end through bellows; The magnetic valve other end is connected through the suction inlet of bellows with suction kind of parts top, and vibrator is installed in inhales kind of parts one side;
Pneumatic locating assembly has riser guide, up-down linear bearing, holder, support, translation linear bearing, lift cylinder, translation guide rail, flat-removing air cyclinder, translation two position two-way valve, up-down two position two-way valve, pressure limiting valve, air compressor; The upper rack both sides are installed the translation guide rail respectively through holder; The translation guide rail is provided with the translation linear bearing; The translation linear bearing is fixed on the support below, and flat-removing air cyclinder is fixed on upper rack, and the piston rod of flat-removing air cyclinder is connected with support; Under the effect of flat-removing air cyclinder, support can be along the horizontal movement of translation guide rail; Lift cylinder is fixed on the carriage center place; The piston rod of lift cylinder is connected with suction kind of parts; All be fixed with riser guide near the support two ends; Establish the up-down linear bearing on the riser guide, the up-down linear bearing is fixed on inhales kind of parts both sides, inhale kind of parts can be in lift cylinder effect lower edge the riser guide vertical lift; The input of translation two position two-way valve, up-down two position two-way valve, pressure limiting valve is connected in parallel through the compressed air output of high-pressure air pipe and air compressor; The translation two position two-way valve is connected with flat-removing air cyclinder through high-pressure air pipe with output, and the up-down two position two-way valve is connected with lift cylinder through high-pressure air pipe;
Seedling dish delivery assembly has decelerator, photoelectric sensor, power transmission shaft, roller, drive sprocket, driven sprocket, carriage; Roller is installed on the power transmission shaft; Power transmission shaft is installed on the carriage through Buddhist nun's logical sequence bearing, and decelerator is installed on the carriage, and drive sprocket is fixed on the decelerator output shaft; Driven sprocket is fixed on power transmission shaft one end; Drive sprocket and driven sprocket constitute chain drive, constitute chain drive between the driven sprocket on each power transmission shaft, and photoelectric sensor is installed in carriage;
Plant dish and be fixed on the end that frame is installed suction kind of parts; Complete machine is controlled by controller;
Described suction kind parts have deflector, vacuum chamber, location-plate, suction nozzle, sealing ring, clamp nut, sealing gasket; Vacuum chamber is a stage body; Below between two suction inlets of internal vacuum chamber is provided with deflector, and location-plate is fixed on the vacuum chamber below, is provided with sealing ring between location-plate and vacuum chamber; Evenly offer locating hole on the location-plate, suction nozzle is fixed on the locating hole of location-plate through clamp nut, sealing gasket;
The hole sucting diameter of described suction nozzle is 1mm-2.5mm, and the suction nozzle lower end is taper, and the 3-8 that it is the suction nozzle hole sucting diameter that the interior length of vacuum chamber is stretched in the suction nozzle upper end doubly.
The gain effect that the present invention brings is that through having suction nozzle suction kind of the sowing of constant spacing, kind is evenly inhaled with middle suction nozzle in the edge; A suction nozzle is inhaled a seed; Seeding quantity is accurate, seed seedling dish spacing evenly, be evenly distributed, the sowing process does not have destruction to seed; Improved seeding quality, satisfied the requirement of mechanized planting well the rice shoot spacing.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the front view of the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings;
Fig. 2 is the sectional elevation that the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings is inhaled kind of parts;
Fig. 3 is the longitudinal section that the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings is inhaled kind of parts;
Fig. 4 is sectional elevation A-A partial enlarged drawing that the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings is inhaled kind of parts;
Fig. 5 is the B-B partial enlarged drawing of the automatic seeding apparatus front view of the smart amount of suction nozzle formula raising rice seedlings;
Fig. 6 is the pneumatic control figure of the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings;
Fig. 7 is the control chart of the automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings;
In the drawings: a rack 2 kinds plate? 3 suction kinds parts? 4 elevating rail? 5 lift linear bearings 6 anchor? 7 bracket Eight translational linear bearings? 9 lift cylinder 10 pan rail 11 pan cylinder 12 pan two two-way valves 13 lifting two two-way valves? 14 solenoid valve? 15 pressure limiting valve? 16 air compressor 17 suction fan 18 controller 19 deceleration motor 20 photoelectric sensors 21 shaft 22 wheel 23 seedling tray 24 pinion 25 driven gear 26 transport aircraft 27 vibrators 28 spoiler 29 vacuum chamber 30 positioning plate 31 nozzle 32 seals 33 fastening nut 34 seal.
Embodiment
Below in conjunction with accompanying drawing and instance the present invention is described further.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the present invention includes
The automatic seeding apparatus of the smart amount of suction nozzle formula raising rice seedlings comprises frame 1, vacuum suction kind of an assembly, pneumatic locating assembly, seedling dish delivery assembly, kind dish 2 and controller 18:
Vacuum is inhaled kind of an assembly and is had suction kind of parts 3, vibrator 6, magnetic valve 14, negative-pressure air fan 17; The negative pressure mouth of negative-pressure air fan 17 is connected with magnetic valve 14 1 ends through bellows; Magnetic valve 14 other ends are connected through the suction inlet of bellows with suction kind of parts 3 tops, and vibrator 6 is installed in inhales kind of parts 3 one sides;
Pneumatic locating assembly has riser guide 4, up-down linear bearing 5, holder 6, support 7, translation linear bearing 8, lift cylinder 9, translation guide rail 10, flat-removing air cyclinder 11, translation two position two-way valve 12, up-down two position two-way valve 13, pressure limiting valve 15, air compressor 16; Both sides, frame 1 top are installed translation guide rail 10 respectively through holder 6; Translation guide rail 10 is provided with translation linear bearing 8; Translation linear bearing 8 is fixed on support 7 belows, and flat-removing air cyclinder 11 is fixed on 1 one of frame, and the piston rod of flat-removing air cyclinder 11 is connected with support 7; Under the effect of flat-removing air cyclinder 11, support 7 can be along 10 horizontal movements of translation guide rail; Lift cylinder 9 is fixed on support 7 centers; The piston rod of lift cylinder 9 is connected with suction kind of parts 3; All be fixed with riser guide 4 near support 7 two ends; Establish up-down linear bearing 5 on the riser guide 4, up-down linear bearing 5 is fixed on inhales kind of parts 3 both sides, and inhaling kind of parts 3 can be at lift cylinder 9 effect lower edge riser guide 4 vertical lift; The input of translation two position two-way valve 12, up-down two position two-way valve 13, pressure limiting valve 15 is connected in parallel through the compressed air output of high-pressure air pipe and air compressor 16; Translation two position two-way valve 12 is connected with flat-removing air cyclinder 11 through high-pressure air pipe with output, and up-down two position two-way valve 13 is connected with lift cylinder 9 through high-pressure air pipe;
Seedling dish delivery assembly has decelerator 19, photoelectric sensor 20, power transmission shaft 21, roller 22, drive sprocket 24, driven sprocket 25, carriage 26; Roller 22 is installed on the power transmission shaft 21; Power transmission shaft 21 is installed on the carriage 26 through Buddhist nun's logical sequence bearing, and decelerator 19 is installed on the carriage 26, and drive sprocket 24 is fixed on decelerator 19 output shafts; Driven sprocket 25 is fixed on power transmission shaft 21 1 ends; Drive sprocket 24 constitutes chain drive with driven sprocket 25, and 25 of the driven sprockets on each power transmission shaft 21 constitute chain drive, and photoelectric sensor 20 is installed in carriage 26;
Plant dish 2 and be fixed on the end that frame 1 is installed suction kind of parts 3; Complete machine is by controller 18 controls;
Described suction kind parts 3 have deflector 28, vacuum chamber 29, location-plate 30, suction nozzle 31, sealing ring 32, clamp nut 33, sealing gasket 34; Vacuum chamber 29 is a stage body; Below between vacuum chamber 29 inner two suction inlets is provided with deflector 28, and location-plate 30 is fixed on vacuum chamber 29 belows, and 29 of location-plate 30 and vacuum chambers are provided with sealing ring 32; Evenly offer locating hole on the location-plate 30, suction nozzle 31 is fixed on the locating hole of location-plate 30 through clamp nut 33, sealing gasket 34;
The hole sucting diameter of described suction nozzle 31 is 1mm-2.5mm, and suction nozzle 31 lower ends are taper, and the 3-8 that it is suction nozzle 31 hole sucting diameters that vacuum chamber 29 interior length are stretched in suction nozzle 31 upper ends doubly.
The course of work of the present invention: even distribution seed in kind of dish 2; Start complete machine; Air compressor 16 operations make air pressure reach setting value, negative-pressure air fan 17 work, and controller 18 control complete machines reset; Controller 18 control magnetic valves 14 are opened, and make in the vacuum chamber 29 of inhaling kind of parts 3 and produce negative pressure; Simultaneously, controller 18 control up-down two position two-way valves 13 promote lift cylinder 9, inhale kind of parts 3 along riser guide 4 rising extreme higher positions thereby drive; Controller 18 control translation two position two-way valves 12 stretch out flat-removing air cyclinder 11 piston rods, thereby promote support 7 to frame one end then, inhale kind of parts 3 and under support 7 drives, move to above kind of the dish 2; Controller 18 control up-down two position two-way valves 13 descend lift cylinder 9 then, inhale kind of the suction nozzle 31 of parts 3 bottoms and just contact with kind of a seed that coils in 2, and seed is being attracted on the suction nozzle 31; Then, controller 18 control up-down two position two-way valves 13 promote lift cylinder 9, inhale kind of parts 3 and reach the upper limit, and controller 18 control translation two position two-way valves 12 make flat-removing air cyclinder 11 work, inhale kind of parts 3 and move to the delivery assembly top with support 7; Then, controller 18 control up-down two position two-way valves 13 descend lift cylinder 9, inhale kind of parts 3 near delivery assembly thereby make; After complete machine started, controller 18 made decelerator 19 work, and drive sprocket 24 drives driven sprocket 25 and rotates; Progress reaches each power transmission shaft 21 with power, and roller 22 rotates, and the seedling dish 23 on the roller begins to move forward; When photoelectric sensor 20 detects 23 arrival of seedling dish; Photoelectric sensor 20 transfers to controller 18 with seedling dish 23 signal that puts in place, and controller 18 control decelerators 19 stop, and seedling dish 23 just is parked in to be inhaled under kind of the parts 3; This moment, controller 18 control magnetic valves 14 cut out the vacuum reduction that makes vacuum chamber 29; Controller 18 makes vibrator 27 work simultaneously, and seed falls in the seedling dish 23 of filling in bed soil at gravity and vibration effect, accomplishes once sowing; Then, 19 work of controller 18 control decelerators move up into follow-up earthing operation before the seedling dish 23; Controller 18 control magnetic valves are opened simultaneously, make vacuum chamber 29 produce vacuum once more, controller 18 each execution unit of control; Make suction kind of parts 3 risings, translation, drop on kind of the dish 2; Inhale kind, so circulation realizes sowing automatically next time.According to seeding quantity, the requirement of sowing seed spacing, change corresponding location-plate 30 and suction nozzle 31 assemblies, realize the adjusting of seeding quantity and seed spacing.
Claims (3)
1. a suction nozzle formula raising rice seedlings essence is measured automatic seeding apparatus, it is characterized in that comprising frame 1, vacuum suction kind of an assembly, pneumatic locating assembly, seedling dish delivery assembly, kind dish 2 and controller 18:
Vacuum is inhaled kind of an assembly and is had suction kind of parts 3, vibrator 6, magnetic valve 14, negative-pressure air fan 17; The negative pressure mouth of negative-pressure air fan 17 is connected with magnetic valve 14 1 ends through bellows; Magnetic valve 14 other ends are connected through the suction inlet of bellows with suction kind of parts 3 tops, and vibrator 6 is installed in inhales kind of parts 3 one sides;
Pneumatic locating assembly has riser guide 4, up-down linear bearing 5, holder 6, support 7, translation linear bearing 8, lift cylinder 9, translation guide rail 10, flat-removing air cyclinder 11, translation two position two-way valve 12, up-down two position two-way valve 13, pressure limiting valve 15, air compressor 16; Both sides, frame 1 top are installed translation guide rail 10 respectively through holder 6; Translation guide rail 10 is provided with translation linear bearing 8; Translation linear bearing 8 is fixed on support 7 belows, and flat-removing air cyclinder 11 is fixed on frame 1 top, and the piston rod of flat-removing air cyclinder 11 is connected with support 7; Under the effect of flat-removing air cyclinder 11, support 7 can be along 10 horizontal movements of translation guide rail; Lift cylinder 9 is fixed on support 7 centers; The piston rod of lift cylinder 9 is connected with suction kind of parts 3; All be fixed with riser guide 4 near support 7 two ends; Establish up-down linear bearing 5 on the riser guide 4, up-down linear bearing 5 is fixed on inhales kind of parts 3 both sides, and inhaling kind of parts 3 can be at lift cylinder 9 effect lower edge riser guide 4 vertical lift; The input of translation two position two-way valve 12, up-down two position two-way valve 13, pressure limiting valve 15 is connected in parallel through the compressed air output of high-pressure air pipe and air compressor 16; Translation two position two-way valve 12 is connected with flat-removing air cyclinder 11 through high-pressure air pipe with output, and up-down two position two-way valve 13 is connected with lift cylinder 9 through high-pressure air pipe;
Seedling dish delivery assembly has decelerator 19, photoelectric sensor 20, power transmission shaft 21, roller 22, drive sprocket 24, driven sprocket 25, carriage 26; Roller 22 is installed on the power transmission shaft 21; Power transmission shaft 21 is installed on the carriage 26 through Buddhist nun's logical sequence bearing, and decelerator 19 is installed on the carriage 26, and drive sprocket 24 is fixed on decelerator 19 output shafts; Driven sprocket 25 is fixed on power transmission shaft 21 1 ends; Drive sprocket 24 constitutes chain drive with driven sprocket 25, and 25 of the driven sprockets on each power transmission shaft 21 constitute chain drive, and photoelectric sensor 20 is installed in carriage 26;
Plant dish 2 and be fixed on the end that frame 1 is installed suction kind of parts 3; Complete machine is by controller 18 controls.
2. the automatic seeding apparatus of the smart amount of a kind of suction nozzle formula raising rice seedlings according to claim 1; It is characterized in that described suction kind parts 3 have deflector 28, vacuum chamber 29, location-plate 30, suction nozzle 31, sealing ring 32, clamp nut 33, sealing gasket 34; Vacuum chamber 29 is a stage body; Below between vacuum chamber 29 inner two suction inlets is provided with deflector 28, and location-plate 30 is fixed on vacuum chamber 29 belows, and 29 of location-plate 30 and vacuum chambers are provided with sealing ring 32; Evenly offer locating hole on the location-plate 30, suction nozzle 31 is fixed on the locating hole of location-plate 30 through clamp nut 33, sealing gasket 34.
3. according to the automatic seeding apparatus of the smart amount of the said a kind of suction nozzle formula raising rice seedlings of claim 1; The hole sucting diameter that it is characterized in that described suction nozzle 31 is 1mm-2.5mm; Suction nozzle 31 lower ends are taper, and the 3-8 that it is suction nozzle 31 hole sucting diameters that vacuum chamber 29 interior length are stretched in suction nozzle 31 upper ends doubly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210137744.9A CN102696308B (en) | 2012-07-19 | 2012-07-19 | Nozzle type automatic precision rice seedling raising seeding device |
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| CN201210137744.9A CN102696308B (en) | 2012-07-19 | 2012-07-19 | Nozzle type automatic precision rice seedling raising seeding device |
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| CN102696308A true CN102696308A (en) | 2012-10-03 |
| CN102696308B CN102696308B (en) | 2015-04-15 |
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| CN201210137744.9A Expired - Fee Related CN102696308B (en) | 2012-07-19 | 2012-07-19 | Nozzle type automatic precision rice seedling raising seeding device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103766051A (en) * | 2014-02-18 | 2014-05-07 | 山西省农业机械化科学研究院 | Intelligent planter |
| CN103931311A (en) * | 2014-04-04 | 2014-07-23 | 昆明理工大学 | Precision planter for pseudo-ginseng |
| CN104541697A (en) * | 2015-01-20 | 2015-04-29 | 东北农业大学 | Uniform multi-seed-outlet germinated rice seed supplying device |
| CN108260381A (en) * | 2018-01-16 | 2018-07-10 | 深圳润丰投资咨询有限公司 | A kind of bulk vegetable seeds based on bent axle lifting, which is sowed, uses equipment |
| CN108925289A (en) * | 2018-08-03 | 2018-12-04 | 山东安信种苗股份有限公司 | A kind of grafting scion seeder |
| CN116918530A (en) * | 2023-05-06 | 2023-10-24 | 海南大学三亚南繁研究院 | Melon crop seedling planting device with adjustable planting distance |
| CN116918530B (en) * | 2023-05-06 | 2024-05-17 | 海南大学三亚南繁研究院 | Melon crop seedling planting device with adjustable planting distance |
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| CN101116385A (en) * | 2006-08-08 | 2008-02-06 | 浙江大学 | Gas suction type industrialized paddy rice seedling raising disk broadcasting device |
| CN201450765U (en) * | 2009-08-07 | 2010-05-12 | 洛阳易通电气科技有限公司 | NC sowing machine for tobacco coated seeds |
| CN201938053U (en) * | 2010-12-21 | 2011-08-24 | 袁良友 | Negative pressure type precise seeding tobacco seed seeder |
| CN202617656U (en) * | 2012-07-19 | 2012-12-26 | 浙江大学 | Automatic suction nozzle type precision seeder for paddy rice seedling raising |
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| JPH0479805A (en) * | 1990-07-20 | 1992-03-13 | Sekisui Plastics Co Ltd | Method for seeding in water culture and apparatus therefor |
| CN101116385A (en) * | 2006-08-08 | 2008-02-06 | 浙江大学 | Gas suction type industrialized paddy rice seedling raising disk broadcasting device |
| CN201450765U (en) * | 2009-08-07 | 2010-05-12 | 洛阳易通电气科技有限公司 | NC sowing machine for tobacco coated seeds |
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| CN202617656U (en) * | 2012-07-19 | 2012-12-26 | 浙江大学 | Automatic suction nozzle type precision seeder for paddy rice seedling raising |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103766051A (en) * | 2014-02-18 | 2014-05-07 | 山西省农业机械化科学研究院 | Intelligent planter |
| CN103766051B (en) * | 2014-02-18 | 2016-04-06 | 山西省农业机械化科学研究院 | A kind of intelligent seeder |
| CN103931311A (en) * | 2014-04-04 | 2014-07-23 | 昆明理工大学 | Precision planter for pseudo-ginseng |
| CN103931311B (en) * | 2014-04-04 | 2016-02-24 | 昆明理工大学 | A kind of pseudo-ginseng precision planter |
| CN104541697A (en) * | 2015-01-20 | 2015-04-29 | 东北农业大学 | Uniform multi-seed-outlet germinated rice seed supplying device |
| CN104541697B (en) * | 2015-01-20 | 2016-08-31 | 东北农业大学 | The many sowing ports of Oryza sativa L. accelerating germination kind are uniformly for kind of a device |
| CN108260381A (en) * | 2018-01-16 | 2018-07-10 | 深圳润丰投资咨询有限公司 | A kind of bulk vegetable seeds based on bent axle lifting, which is sowed, uses equipment |
| CN108260381B (en) * | 2018-01-16 | 2020-06-16 | 广东省农业科学院蔬菜研究所 | Batch vegetable seed is scattered and is used equipment based on bent axle goes up and down |
| CN108925289A (en) * | 2018-08-03 | 2018-12-04 | 山东安信种苗股份有限公司 | A kind of grafting scion seeder |
| CN116918530A (en) * | 2023-05-06 | 2023-10-24 | 海南大学三亚南繁研究院 | Melon crop seedling planting device with adjustable planting distance |
| CN116918530B (en) * | 2023-05-06 | 2024-05-17 | 海南大学三亚南繁研究院 | Melon crop seedling planting device with adjustable planting distance |
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| CN102696308B (en) | 2015-04-15 |
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Application publication date: 20121003 Assignee: Shengzhou Keling Machine Co., Ltd. Assignor: Zhejiang University Contract record no.: 2015330000220 Denomination of invention: Nozzle type automatic precision rice seedling raising seeding device Granted publication date: 20150415 License type: Common License Record date: 20150806 |
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Application publication date: 20121003 Assignee: Zhejinag Liulin Agricultural Machinery Co., Ltd. Assignor: Zhejiang University Contract record no.: 2015330000254 Denomination of invention: Nozzle type automatic precision rice seedling raising seeding device Granted publication date: 20150415 License type: Common License Record date: 20151111 |
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Granted publication date: 20150415 Termination date: 20180719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |