WO1992012618A1 - Device for sowing seed by suction nozzle and a sensing device for detecting the seed - Google Patents
Device for sowing seed by suction nozzle and a sensing device for detecting the seed Download PDFInfo
- Publication number
- WO1992012618A1 WO1992012618A1 PCT/FI1992/000024 FI9200024W WO9212618A1 WO 1992012618 A1 WO1992012618 A1 WO 1992012618A1 FI 9200024 W FI9200024 W FI 9200024W WO 9212618 A1 WO9212618 A1 WO 9212618A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seed
- sowing
- nozzle
- sowing device
- tray
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
Definitions
- the present invention relates to a device for sowing in which seeds are picked up by means of suction nozzles and dropped on a substrate.
- the invention is particularly suited to use for sowing seeds into a matrix of seedling containers.
- Sowing apparatuses equipped with suction nozzles are known in the art. They operate by using vacuum to pick up a seed from a tray onto a hole at the tip of a nozzle, after which the nozzle is taken to the sowing point and the seed is dropped onto the substrate.
- One such apparatus is known from, e.g., patent publication NO 119708.
- a problem of the above-described conventional sowing apparatuses is that if the nozzle hole fails to pick up a seed, the substrate remains unseeded at those points.
- the device comprises a sensor placed below the nozzle at the sowing point, capable of positively detecting the dropping of the seed onto the substrate. At a failure to drop a seed, said sowing point can be resown. Hence, unseeded points on the substrate are avoided.
- Fig. 1 shows the suction nozzle picking up a seed from the seed tray
- Fig. 2 shows the seed container in greater detail * (from the opposite side)
- Fig. 3 shows the suction nozzle and the seed sensor at the sowing point.
- the sowing device has in a row a number of vertically aligned suction nozzles 1, whose lower end is provided with a hole 2 smaller than the seed.
- the nozzles are mounted in a frame 3 (Fig. 3) which also houses a vacuum system that provides the suction at the nozzle tips.
- the frame incorporates a vibrating arrangement which serves to detach any extra seeds which might adhere to the nozzle holes.
- the array of separate nozzles can be replaced by a rotating drum of nozzles.
- the seeds to be sown are placed on an elongated seed tray
- the sowing is started by bringing the seed tray under the nozzles so that the tips of the nozzles can come in contact with the surface of the seed layer and then switching on the vacuum system to develop suction at the nozzle tips, whereby each nozzle tip picks up a seed.
- the amount of seeds in seed tray 4 is consistently kept at a relatively low level. This arrangement reduces the need for an excessive amount of seeds in the tray.
- the seed tray 4 is further connected to a larger feed bin
- Seed replenishment can be automated to take place at regular intervals, whereby the number of seeds and their level on the tray can be kept almost unchanged. This contributes to the operational reliability of the suction nozzles 1.
- the seed tray 4 and the feed bin 5 are combined into a single container unit 6.
- the feed bin is parallel to the seed tray and placed at a lower level.
- the entire unit can be tilted about a shaft 7 parallel to the bin and the tray. During tilting, seeds are poured from the feed bin onto the seed tray.
- Fig. 2 shows the seed tray 3 in greater detail.
- the tray has a porous air-permeable bottom 8 (such as a sintered glass filter, felt or mesh) .
- Air can be routed via a channel 9 to the underside of the bottom. Air is fed to the underside of the bottom at rate sufficient to make the seed layer in the seed tray to act as a fluidized bed. Picking up of seeds by means of the nozzles 1 from the fluidized bed is easier than from a dense mass of seeds. Simultaneously, the surface of the seed layer stays level and the seeds are prevented from jamming. The air flow also removes lighter rubbish away from the seeds. Furthermore, the seed tray can be vibrated for improved levelling of the seed layer.
- Fig. 3 illustrates the sowing phase.
- the suction nozzles 1 are transferred into the sowing position where a matrix of seedling containers 11 movable in the direction of the arrow 10 is aligned below them.
- the vacuum is switched off to remov suction from the nozzle tips and an overpressure is applied, the seed releases and falls via a sensor 12 and a guide tube 13 into a cell below.
- the sensor 12 can be, e.g., an optical or inductive sensor. Its purpose is to detect the fall of a seed from the nozzle 1. If the fall of a seed is not detected, the sowing operation can be repeated for the cell missing a seed. The resowing operation can be accomplished by means of the same nozzle or by way of a patching unit following behind.
- a particularly suited sensor is such that is a combination of IR emitters (at 880 nm, for instance) and receivers in which the seeds pass through a transparent tube and a plurality of the emitters and receivers are arranged so as to avoid blind angles.
- the tube diameter is most preferably smaller than 10 mm.
- the motions of the matrix of seedling containers and the nozzles 1 are mutually synchronized with the help of suitably designed mechanical actuator and control elements 14.
- the suction nozzle 1 can further be complemented by a cleaning arrangement 15 which cleans the nozzle if, for instance, the nozzle fails to pick up a seed on two sub ⁇ sequent cycles. If the cleaning operation fails to rectify the situation, an alarm is issued by means of an alarm system 16 incorporated in the apparatus.
- the container missing a seed is marked by a suitable color marker.
- Registered detection of a cell missing a seed is routed from the apparatus 14 via a line 17 to a marking apparatus 18. Then, as the cell 11' missing a seed is coincident with the jet nozzle 19 of the marking apparatus, the cell is sprayed with a marker color.
- the marked cells can afterward be sown manually or routed to another sowing apparatus which identifies the marked cell and sows it with a seed.
- a solid marker piece can be used such as a metal clip, for instance, which is easy to identify by automatic means.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI924271A FI924271A0 (en) | 1991-01-29 | 1992-09-23 | SAONINGSANORDNING. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI910424 | 1991-01-29 | ||
FI910424A FI910424A (en) | 1991-01-29 | 1991-01-29 | SAONINGSANORDNING. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992012618A1 true WO1992012618A1 (en) | 1992-08-06 |
Family
ID=8531809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1992/000024 WO1992012618A1 (en) | 1991-01-29 | 1992-01-29 | Device for sowing seed by suction nozzle and a sensing device for detecting the seed |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0537305A1 (en) |
FI (1) | FI910424A (en) |
WO (1) | WO1992012618A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO119708B (en) * | 1968-05-21 | 1970-06-22 | Odd Melvold | |
US4046285A (en) * | 1975-06-05 | 1977-09-06 | Karl Lennart Wendt | Method and apparatus for producing single flows of grains |
US4163507A (en) * | 1978-03-20 | 1979-08-07 | International Tapetronics Corporation | Optical seed sensor for a seed planter monitor |
GB2048035A (en) * | 1979-05-23 | 1980-12-10 | Robinson & Sons Wairarapa Ltd | Sowing Seeds |
CH643982A5 (en) * | 1978-11-02 | 1984-07-13 | Becker Karl Masch | DEVICE AND METHOD FOR SEPARATING AND DEPOSITING SEEDS, IN PARTICULAR SEEDS. |
US4555624A (en) * | 1983-02-22 | 1985-11-26 | Dickey-John Corporation | High rate seed sensor |
-
1991
- 1991-01-29 FI FI910424A patent/FI910424A/en unknown
-
1992
- 1992-01-29 WO PCT/FI1992/000024 patent/WO1992012618A1/en not_active Application Discontinuation
- 1992-01-29 EP EP19920903566 patent/EP0537305A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO119708B (en) * | 1968-05-21 | 1970-06-22 | Odd Melvold | |
US4046285A (en) * | 1975-06-05 | 1977-09-06 | Karl Lennart Wendt | Method and apparatus for producing single flows of grains |
US4163507A (en) * | 1978-03-20 | 1979-08-07 | International Tapetronics Corporation | Optical seed sensor for a seed planter monitor |
CH643982A5 (en) * | 1978-11-02 | 1984-07-13 | Becker Karl Masch | DEVICE AND METHOD FOR SEPARATING AND DEPOSITING SEEDS, IN PARTICULAR SEEDS. |
GB2048035A (en) * | 1979-05-23 | 1980-12-10 | Robinson & Sons Wairarapa Ltd | Sowing Seeds |
US4555624A (en) * | 1983-02-22 | 1985-11-26 | Dickey-John Corporation | High rate seed sensor |
Also Published As
Publication number | Publication date |
---|---|
EP0537305A1 (en) | 1993-04-21 |
FI910424A (en) | 1992-07-30 |
FI910424A0 (en) | 1991-01-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3282825B1 (en) | System and method for sowing seeds | |
CN106465572B (en) | Bulk component feedway and element fixing apparatus | |
CN113631028A (en) | Method and system for individually placing seeds | |
AU765726B2 (en) | An embryo delivery system for manufactured seeds | |
WO1992012618A1 (en) | Device for sowing seed by suction nozzle and a sensing device for detecting the seed | |
JP3463079B2 (en) | Seeding equipment | |
CA2373088A1 (en) | Parts feed device | |
GB2190644A (en) | Apparatus for arraying parts on respective trays | |
KR100491169B1 (en) | Arraying Seeding Machine for Large Seeds | |
JPH0662616A (en) | Method and device for sowing | |
JPH08103112A (en) | Device for correcting lack of seedling | |
JP2003243440A (en) | Ball supply device and ball conveying apparatus using the same | |
JP2008283920A (en) | Seeding machine | |
JPH08140427A (en) | Heeling-in-device | |
US20010008329A1 (en) | Game system shooting at the target by means of a pneumatic gun | |
JP4029373B2 (en) | Control method of ball mounting device | |
JP3878743B2 (en) | Sowing equipment | |
JPH1098914A (en) | Seeding device for raising seedling | |
JP2559607B2 (en) | Fine seed sorting / feeding device | |
JPH0819307A (en) | Seeding device | |
JP3510599B2 (en) | Ball handling equipment | |
CN115350913A (en) | Hollow steel shot detection device and method | |
JPH0265714A (en) | Seedling-feeding apparatus of transplantation machine | |
JP3665126B2 (en) | Seedling filling device | |
JPH0823789A (en) | Feeder for culturing pot |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): FI |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 924271 Country of ref document: FI |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1992903566 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1992903566 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1992903566 Country of ref document: EP |