CN105659999A - Air-suction vegetable seedling-raising and precision seeding roller - Google Patents
Air-suction vegetable seedling-raising and precision seeding roller Download PDFInfo
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- CN105659999A CN105659999A CN201410662644.7A CN201410662644A CN105659999A CN 105659999 A CN105659999 A CN 105659999A CN 201410662644 A CN201410662644 A CN 201410662644A CN 105659999 A CN105659999 A CN 105659999A
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Abstract
The invention provides an air-suction vegetable seedling-raising and precision seeding roller. The air-suction vegetable seedling-raising and precision seeding roller comprises a roller shaft, a roller, a dial scale, air-pressure conversion boards, a compression spring assembly, a transmission gear and so on. The roller sleeves the roller shaft; the air-pressure conversion boards are arranged on the roller shaft, and are respectively located at the left and right sides of the roller; the dial scale is arranged at one end of the roller shaft, and is located between one of the air-pressure conversion boards and the roller; the compression spring assembly which is closely adjacent to the outer side of the other air-pressure conversion board is installed on one end of the roller shaft; and the transmission gear is installed at the other end of the roller shaft. The air-suction vegetable seedling-raising and precision seeding roller is suitable to seedling-raising plug trays of various specifications and seedling-raising precision seeding of vegetable seeds of various particle sizes; thus, the air-suction vegetable seedling-raising and precision seeding roller is a multifunctional air-suction vegetable seedling-raising and precision seeding roller which is strong in universality, extensible as well as convenient and fast to be changed.
Description
Technical field
The present invention relates to a kind of agricultural machine, that be particularly useful for the nursery precise sowing of different size seedling culture hole plate and different-grain diameter vegetable seed, be a kind of highly versatile, can expand, change conveniently air-aspiration type grow seedlings of vegetable precise sowing cylinder.
Background technology
Air-aspiration type nursery precise sowing has become the main mode of mass-producing grow seedlings of vegetable precise sowing operation, and different according to the structural style of feed mechanism for seed, air-aspiration type nursery precise sowing machine mainly contains board-like seed sower, pin type seed sower and drum-type seed sower. The batch operation flow process of board-like seed sower and pin type seed sower broken by drum-type precise sowing machine, by roll circumference absorbed seed, it is achieved the continuous sowing of seed. Drum-type seed sower sowing efficiency height, per hour sows more than 1000 dishes, and operation efficiency far is higher than pin type seed sower and board-like seed sower.
But current air-aspiration type nursery precise sowing cylinder is only applicable to the precise sowing of single seed, the adaptability of seed particle size and cave dish sowing line number is poor, and cylinder replacement operation is complicated, affects the efficiency of grow seedlings of vegetable operation.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of air-aspiration type nursery precise sowing cylinder being applicable to different size seedling culture hole plate and different-grain diameter vegetable seed, be a kind of highly versatile, can expand, change conveniently air-aspiration type grow seedlings of vegetable precise sowing cylinder.
In order to realize above-mentioned purpose, the present invention provides a kind of air-aspiration type grow seedlings of vegetable precise sowing cylinder, comprises: the cylinder that a drum shaft and is arranged on described drum shaft, wherein,
Described cylinder comprises further:
Cylinder in one, is arranged on described drum shaft, the circumference face of described interior cylinder is provided with multiple radial air flue, described interior cylinder is also provided with multiple axial air flue, and described multiple axial air flue is connected with described multiple radial air flue;
One urceolus, is set on described interior cylinder, the radial air flue that the described multiple radial air flue circumference face of described urceolus being provided with on multiple and described interior cylinder is corresponding;
Two air pressure conversion plates, are arranged on described drum shaft, and lay respectively at the left and right sides of described cylinder;
One scale card, is arranged at one end of described drum shaft, and changes between plate one of them and described cylinder at described air pressure, and described scale card has the scale marks that several are broadcast seed particle size in order to regulate;
One transmission rig, is installed on one end of described drum shaft, drives described drum in order to transmit motivating force to described drum shaft.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, also comprises a compression spring assembly, and described compression spring assembly is close to described air pressure conversion plate another outside wherein and is installed on described drum shaft.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, described compression spring assembly comprises a compression spring and is arranged at a spring end cap of described compression both ends of the spring respectively, and wherein a spring end cap compresses described air pressure conversion plate wherein another.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, one end of described interior cylinder has a protruding preset pieces, having multiple pilot hole on described scale card, described preset pieces coordinates described many scale markss on corresponding described scale card to carry out sowing the adjustment of particle diameter with described multiple pilot hole.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, the diameter of each radial air flue of described interior cylinder is identical.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, the diameter of each radial air flue described of described urceolus is arranged by the change of broadcast seed particle size.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, described scale card has a scale card air flue, the connection corresponding to the described axial air flue on described interior cylinder of described scale card air flue.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, each described air pressure conversion plate all comprises a suction kind uptake, and blows kind of uptake and a clear gas inlet hole road, described suction kind uptake is connected a vacuum pump, described kind of the uptake that blows is connected an air compressor respectively with described clear gas inlet hole road, and described suction kind of uptake, described in blow kind of uptake and described clear gas inlet hole road correspondence is connected described scale card air flue.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, described drum shaft is also provided with a roller sleeve, and described interior cylinder is set on described roller sleeve by the mode of shrink-fit, and described urceolus is set on described interior cylinder by the mode of shrink-fit.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, also comprises two drum shaft back up pads, and described two drum shaft back up pads are installed in described drum shaft two ends and lay respectively at described compression spring assembly and one of them outside of described air pressure conversion plate.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, changes plate one of them and described drum shaft back up pad between one of them at described air pressure and is also provided with an axle sleeve on described drum shaft.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, described transmission rig is chain drive, rope band transmission, geartransmission or worm gear worm drive.
Above-mentioned air-aspiration type grow seedlings of vegetable precise sowing cylinder, wherein, changes at described air pressure and also can be provided with another scale card between plate another and described cylinder wherein.
Relative to prior art, the present invention is applicable to the nursery precise sowing of different size seedling culture hole plate and different-grain diameter vegetable seed, and be a kind of highly versatile, can expand, change conveniently air-aspiration type grow seedlings of vegetable precise sowing cylinder.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of air-aspiration type grow seedlings of vegetable precise sowing cylinder one embodiment of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 a-3b be respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention in cylinder side-view and sectional view;
Fig. 4 a-4c is respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention urceolus vertical view, sectional view and stretch-out view;
Fig. 5 a-5b is respectively scale card schematic diagram and sectional view in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention;
Fig. 6 a-6c is respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention air pressure conversion plate schematic diagram, side-view and sectional view;
Fig. 7 is the structural representation of air-aspiration type grow seedlings of vegetable precise sowing another embodiment of cylinder of the present invention;
Fig. 8 is the sectional view of Fig. 7.
Wherein, Reference numeral
1 drum shaft
2 cylinders
21 roller sleeves
Cylinder in 22
221 radial air flues
222 axial air flues
223 preset piecess
23 urceolus
231 radial air flues
3 scale cards
3a left scale dish
31 pilot holes
32 scale markss
33 scale card air flues
34 woodruff-keies
41 driving chain wheels
42 sprocket wheel interstage sleeves
43 flat keys
The left air pressure conversion plate of 5a
The right air pressure conversion plate of 5b
51 inhale kind of a uptake
52 blow kind of a uptake
53 clear gas inlet hole roads
61 compression springs
62a left spring end cap
The right spring end cap of 62b
The left drum shaft back up pad of 7a
The right drum shaft back up pad of 7b
8 axle sleeves
9 contain kind of a dish
10 seedling culture hole plates
Embodiment
Below in conjunction with accompanying drawing, the structural principle of the present invention and principle of work are described in detail:
Referring to Fig. 1 and Fig. 2, wherein the structural representation of Fig. 1 air-aspiration type of the present invention grow seedlings of vegetable precise sowing cylinder one embodiment, Fig. 2 is the sectional view of Fig. 1. The air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention, comprises: drum shaft 1 and the cylinder 2 being set on drum shaft 1, air pressure conversion plate (left air pressure conversion plate 5a and right air pressure conversion plate 5b), spring assembly, scale card 3 and transmission rig. Wherein air pressure changes plate into two, two air pressure conversion plates are arranged on drum shaft 1, and lay respectively at the left and right sides of cylinder 2, a scale card 3 is arranged between cylinder 2 and right air pressure conversion plate 5b, compressing the arranged outside that spring assembly is close to left air pressure conversion plate 5a, transmission rig is arranged at the outside of right air pressure conversion plate 5b.
Wherein, cylinder 2 comprises: interior cylinder 22, urceolus 23, be set with roller sleeve 21 on drum shaft 1, and interior cylinder 22 is set on roller sleeve 21, urceolus 23 is set on interior cylinder 22, between interior cylinder 22 and roller sleeve 21 and better between interior cylinder 22 with urceolus 23 coordinate installation in interference mode.
Incorporated by reference to consulting Fig. 3 a-3b, Fig. 3 a-3b be respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention in cylinder side-view and sectional view, in order to interior cylinder 22 structure to be described, interior cylinder 22 is provided with the identical radial air flue 221 of multiple diameter and multiple axial air flue 222. Wherein, multiple radial air flue 221 is distributed on the circumference face of interior cylinder 22, and multiple axial air flues 222 are distributed in the two ends of interior cylinder 22, and the often corresponding connection of radial air flue 221 air flue 222 axial with of row.
Refer to Fig. 2 and Fig. 4 a-4c, Fig. 4 a-4c is respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention urceolus vertical view, sectional view and stretch-out view, in order to urceolus 23 structure and the corresponding relation of the radial air flue 221 with interior cylinder 22 to be described, the circumference face of urceolus 23 is provided with the radial air flue 231 of multiple different pore size, and radial air flue 231 is connected with radial air flue 221 one_to_one corresponding on interior cylinder 22, the transversely arranged correspondence sowing line number X of radial air flue 231, the corresponding aperture set number Z of the longitudinal arrangement of radial air flue 231.As illustrated in fig. 4 c, sowing line number in the present embodiment is ten row, aperture set number Z is six groups, often organizes aperture set number and comprises four kinds of different pore size Φ 1, Φ 2, Φ 3, Φ 4 and four kind of different pore size according to order arrangement from small to large or from big to small, but the present invention is not limited to this.
Refer to Fig. 1, Fig. 2 and Fig. 5 a-5b, Fig. 5 a-5b is respectively right side scale dish schematic diagram and sectional view in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention, in order to scale card 3 structure to be described and how to be connected with interior cylinder 22, scale card 3 is installed on drum shaft 1 by a woodruff-key 34, and scale card 3 is provided with multiple scale card air flue 33, multiple scale card air flue 33 and the corresponding connection respectively of multiple axial air flue 222. Wherein, one end of interior cylinder 22 is provided with a protruding preset pieces 223, and scale card 3 is also provided with multiple pilot hole 31 and many scale markss 32, and the adjustment that preset pieces 223 coordinates also corresponding many scale markss 32 to carry out sowing particle diameter with multiple pilot hole 31 connects.
Refer to Fig. 2 and Fig. 6 a-6c, Fig. 6 a-6c is respectively in air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention air pressure conversion plate schematic diagram, side-view and sectional view, air pressure conversion plate structure is carved in order to illustrate, each air pressure conversion plate is also provided with a suction kind uptake 51, and blows kind of uptake 52 and a clear gas inlet hole road 53, inhale kind of a uptake 51, blow kind of uptake 52 and clear gas inlet hole road 53 respectively correspondence be communicated in multiple scale card air flue 33, inhaling kind of a uptake 51 be circular shape air flue, blows kind of uptake 52 and clear gas inlet hole road 53 is circle hole shape air flue. Inhale kind of a uptake 51 and it is connected to a vacuum pump (not shown) by tracheae respectively, and the negative pressure air that vacuum pump produces is sent in scale card air flue 33; Blow kind of uptake 52 and clear gas inlet hole road 53 is connected to an air compressor (not shown) by tracheae respectively, and the positive pressure air that air compressor produces is sent in scale card air flue 33.
Referring to Fig. 2, compress spring assembly and comprise a compression spring 61 and be arranged at the spring end cap (left spring end cap 62a, right spring end cap 62b) compressing spring 61 two ends respectively, wherein right spring end cap 62b compresses left air pressure conversion plate 5a.
Refer to Fig. 2, the air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention, also comprise two drum shaft back up pads (left drum shaft back up pad 7a, right drum shaft back up pad 7b) and an axle sleeve 8, left drum shaft back up pad 7a is installed on drum shaft 1 and is positioned at the outside of left spring end cap 62a, and right drum shaft back up pad 7b is installed on drum shaft 1 and is positioned at the outside of right air pressure conversion plate 5b; Axle sleeve 8 is arranged between right air pressure conversion plate 5b and right drum shaft back up pad 7b and is set on drum shaft 1.
Referring to Fig. 1 and Fig. 2, transmission rig comprises: a driving chain wheel 41 and a sprocket wheel interstage sleeve 42. Driving chain wheel 41 is installed on the right side of drum shaft 1 by a flat key 43, and the inner sleeve that sprocket wheel interstage sleeve 42 is close to driving chain wheel 41 is loaded on drum shaft 1. The transmission rig of the present embodiment adopts linked transmission, but the present invention is not limited to this, and transmission rig also can adopt rope band transmission, geartransmission or worm gear worm drive.
As shown in Figure 1, sowing mechanism also comprises one and contains kind of dish 9 and a seedling culture hole plate 10, contains the side that kind of dish 9 is set in parallel in cylinder 2, and seedling culture hole plate 10 is arranged at the underface of cylinder 2. Start to rotate according to the direction of arrow in Fig. 1 when cylinder works, driving chain wheel 41 rotates, drum shaft 1 is driven to rotate by flat key 43, drum shaft 1 drives scale card 3 to rotate by woodruff-key 34, scale card 3 drives interior cylinder 22 to rotate by preset pieces 223, and air pressure conversion plate (left air pressure conversion plate 5a and right air pressure conversion plate 5b) maintains static.After negative pressure air enters air pressure conversion plate (left air pressure conversion plate 5a and right air pressure conversion plate 5b) by a suction kind uptake 51, left side negative pressure air directly enters the axial air flue 222 of interior cylinder 22, right side negative pressure air enters the axial air flue 222 of interior cylinder 22 by scale card air flue 33, and then the aperture place of the radial air flue 231 being adsorbed on urceolus 23 by the seed contained on kind of dish 9 is exported via the radial air flue 221 on interior cylinder 22 and the radial air flue 231 on urceolus 23, the seed then adsorbed is with drum; When seed turns to the surface of seedling culture hole plate 10, by blowing, kind of uptake 52 enters air pressure conversion plate (left air pressure conversion plate 5a and right air pressure conversion plate 5b) to positive pressure air, left side positive pressure air directly enters the axial air flue 222 of interior cylinder 22, right side positive pressure air enters the axial air flue 222 of interior cylinder 22 by scale card air flue 33, and then exports via the radial air flue 221 on interior cylinder 22 and the radial air flue 231 on urceolus 23 and blown off in seedling culture hole plate 10 from the aperture of the radial air flue 231 on urceolus 23 by the seed adsorbed; Cylinder continues to rotate, positive pressure air enters air pressure conversion plate (left air pressure conversion plate 5a and right air pressure conversion plate 5b) by clear gas inlet hole road 53, left side positive pressure air directly enters the axial air flue 222 of interior cylinder 22, right side positive pressure air enters the axial air flue 222 of interior cylinder 22 by scale card air flue 33, and then export via the radial air flue 221 on interior cylinder 22 and the radial air flue 231 on urceolus 23, realize being cleaned by the radial air flue 231 on urceolus 23, place blocking. Cylinder continues to rotate, and carries out the absorption of seed continuously, blows off and clean.
Please referring to Fig. 7 and Fig. 8 again, wherein the structural representation of Fig. 7 air-aspiration type of the present invention grow seedlings of vegetable precise sowing another embodiment of cylinder, Fig. 8 is the sectional view of Fig. 7. The air-aspiration type grow seedlings of vegetable precise sowing cylinder of the present invention also can comprise a left scale dish 3a, it is arranged between cylinder 2 and left air pressure conversion plate 5a, left scale dish 3a has multiple scale card air flue 33 and many scale markss 32, in order to ensure the balance of cylinder and the even of both sides air pressure, avoid cylinder and the friction of air pressure conversion plate simultaneously, reduce the abrasion to cylinder.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (13)
1. an air-aspiration type grow seedlings of vegetable precise sowing cylinder, comprising: the cylinder that a drum shaft and is arranged on described drum shaft, it is characterised in that,
Described cylinder comprises further:
Cylinder in one, is arranged on described drum shaft, the circumference face of described interior cylinder is provided with multiple radial air flue, described interior cylinder is also provided with multiple axial air flue, and described multiple axial air flue is connected with described multiple radial air flue;
One urceolus, is set on described interior cylinder, the radial air flue that the described multiple radial air flue circumference face of described urceolus being provided with on multiple and described interior cylinder is corresponding;
Two air pressure conversion plates, are arranged on described drum shaft, and lay respectively at the left and right sides of described cylinder;
One scale card, is arranged at one end of described drum shaft, and changes between plate one of them and described cylinder at described air pressure, and described scale card has the scale marks that several are broadcast seed particle size in order to regulate;
One transmission rig, is installed on one end of described drum shaft, drives described drum in order to transmit motivating force to described drum shaft.
2. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 1, it is characterised in that, also comprise a compression spring assembly, described compression spring assembly is close to described air pressure conversion plate another outside wherein and is installed on described drum shaft.
3. multifunctional vegetable seedlings precise sowing cylinder as claimed in claim 2, it is characterized in that, described compression spring assembly comprises a compression spring and is arranged at a spring end cap of described compression both ends of the spring respectively, and wherein a spring end cap compresses described air pressure conversion plate wherein another.
4. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 1, it is characterized in that, one end of described interior cylinder has a protruding preset pieces, having multiple pilot hole on described scale card, described preset pieces coordinates described many scale markss on corresponding described scale card to carry out sowing the adjustment of particle diameter with described multiple pilot hole.
5. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 1, it is characterised in that, the diameter of each radial air flue of described interior cylinder is identical.
6. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 1, it is characterised in that, the diameter of each radial air flue described of described urceolus is arranged by the change of broadcast seed particle size.
7. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 4, it is characterised in that, described scale card has a scale card air flue, the connection corresponding to the described axial air flue on described interior cylinder of described scale card air flue.
8. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 7, it is characterized in that, each described air pressure conversion plate all comprises a suction kind uptake, and blows kind of uptake and a clear gas inlet hole road, described suction kind uptake is connected a vacuum pump, described kind of the uptake that blows is connected an air compressor respectively with described clear gas inlet hole road, and described suction kind of uptake, described in blow kind of uptake and described clear gas inlet hole road correspondence is connected described scale card air flue.
9. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 1, it is characterized in that, also being provided with a roller sleeve on described drum shaft, described interior cylinder is set on described roller sleeve by the mode of shrink-fit, and described urceolus is set on described interior cylinder by the mode of shrink-fit.
10. air-aspiration type grow seedlings of vegetable precise sowing cylinder as claimed in claim 3, it is characterized in that, also comprising two drum shaft back up pads, described two drum shaft back up pads are installed in described drum shaft two ends and lay respectively at described compression spring assembly and one of them outside of described air pressure conversion plate.
11. air-aspiration type grow seedlings of vegetable precise sowing cylinders as claimed in claim 10, it is characterised in that, change plate one of them and described drum shaft back up pad between one of them at described air pressure on described drum shaft, also it is provided with an axle sleeve.
12. air-aspiration type grow seedlings of vegetable precise sowing cylinders as claimed in claim 1, it is characterised in that, described transmission rig is chain drive, rope band transmission, geartransmission or worm gear worm drive.
13. air-aspiration type grow seedlings of vegetable precise sowing cylinders as claimed in claim 1, it is characterised in that, change at described air pressure and also it is provided with another scale card between plate another and described cylinder wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662644.7A CN105659999A (en) | 2014-11-19 | 2014-11-19 | Air-suction vegetable seedling-raising and precision seeding roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662644.7A CN105659999A (en) | 2014-11-19 | 2014-11-19 | Air-suction vegetable seedling-raising and precision seeding roller |
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| Publication Number | Publication Date |
|---|---|
| CN105659999A true CN105659999A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662644.7A Pending CN105659999A (en) | 2014-11-19 | 2014-11-19 | Air-suction vegetable seedling-raising and precision seeding roller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106717351A (en) * | 2016-12-06 | 2017-05-31 | 东北农业大学 | A kind of flowing inhales kind of the precision metering device method planted clearly with collision and its a device |
| CN107046882A (en) * | 2017-05-18 | 2017-08-18 | 中国水稻研究所 | A kind of aspirated-air type rice seedling planter |
| CN109287206A (en) * | 2018-10-09 | 2019-02-01 | 华南农业大学 | Multipurpose fast switch type strength roller inhales dispenser and switching method |
| CN114145105A (en) * | 2021-12-14 | 2022-03-08 | 广东海洋大学 | But seedling tray seeder of quick replacement seeding cylinder |
| CN114651638A (en) * | 2020-12-23 | 2022-06-24 | 南京农业大学 | Accurate control mode of pinhole air-suction type sowing roller of vegetable seedling raising assembly line |
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| CN103733775A (en) * | 2013-12-30 | 2014-04-23 | 河南农业大学 | Pneumatic roller type tray seeder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106717351A (en) * | 2016-12-06 | 2017-05-31 | 东北农业大学 | A kind of flowing inhales kind of the precision metering device method planted clearly with collision and its a device |
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| CN114651638A (en) * | 2020-12-23 | 2022-06-24 | 南京农业大学 | Accurate control mode of pinhole air-suction type sowing roller of vegetable seedling raising assembly line |
| CN114651638B (en) * | 2020-12-23 | 2024-01-26 | 南京农业大学 | Pinhole air suction type seeding roller precise control mode for vegetable seedling production line |
| CN114145105A (en) * | 2021-12-14 | 2022-03-08 | 广东海洋大学 | But seedling tray seeder of quick replacement seeding cylinder |
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Application publication date: 20160615 |