JPH0380007A - Seeder for nursery box - Google Patents

Abstract

PURPOSE:To obtain the title sewing apparatus capable of accurately and smoothly sowing even in budded seed dipped in water by opening a blast port in delivery recessed part of horizontal shaft type delivery roll. CONSTITUTION:The aimed sowing obtained by forming delivery recessed part 11 parallel in generating line direction in the peripheral face of horizontal shaft type delivery roll 10 into width fitting sideways in a row and forming a blast port 23 of blast equipment 21 opposite to each slit in downward direction. The seed 12 is allowed to flow down from a hopper 3 onto a flow grain plate 4 and up to seed feed part 31 and fitted to the delivery recessed 11 and induced to a seed dropping part 20 and brought into a scraping knife and sowed into nursery box. The air from blast fan 26 blow out the dust in a slit 13 and water content is dried and attachment of dust in the tip of knife is prevented.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a seeding device for seedling raising boxes.

(Prior art) The conventionally known Japanese Patent Application Laid-Open No. 10907/1987 discloses a horizontal shaft having a feeding recess in the form of horizontal grooves parallel to the generatrix direction and slits perpendicular to the generatrix direction on the outer peripheral surface. A seeding box seeding device is described that includes a feeding roll and a scraping knife fitted in the slit for scraping out seeds that are stuck in the feeding recess and do not fall.

(Problems to be Solved by the Invention) In the known method, when sowing is performed continuously, the slit becomes clogged with foreign matter in the form of seed particles. This foreign object is
When it is dry, it can be scraped out with a scraping knife, but when it is wet, such as when sowing sprouted seeds soaked in water, foreign matter that has entered the slit cannot be scraped out with a scraping knife. do not have.

(Object of the Invention) The present invention is such that even budding seeds soaked in water can be dried by blowing air onto the outer circumferential surface of the feed roll so that even budding seeds can be sown accurately.

(Means for Solving the Problem) Accordingly, the present invention provides a method in which the drying air outlet η is opened facing the feeding recesses 11 of the horizontal axis feeding roll 10 having countless feeding recesses 11 formed on the outer circumferential surface. This is a seeding device for seedling boxes.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seed supply device provided above a transfer table 2 for transferring seedling boxes, and a seed supply hopper is provided at the upper front side of the seed supply device 1. 3 will be provided. At the bottom of the seed supply hopper 3, an inverted grain flow plate 4.5 is provided.

6 is a downstream opening formed at the lower part of the seed supply hopper 3;
Reference numeral 7 denotes a supply rate adjustment plate of the supply rate adjustment device 8 attached to the seed supply hopper 3, and 9 is a brush movably provided at the lower end of the grain flow plate 4. 10 in sliding contact with the outer peripheral surface.

On the outer peripheral surface of the horizontal shaft feeding roll 10, feeding recesses 11 in the form of horizontal grooves parallel to the generatrix direction are formed around the entire circumference at predetermined intervals. The feeding recess 11 has a width that allows the seeds □ to fit in one row horizontally, and a shape that has a depth that allows the seeds 12 of - size to fit. When the cross-sectional shape of the feeding recess 11 is shaped into an inclined surface by cutting out the corner on the forward rotation side and shaped into an upright wall leaving the corner on the backward rotation side, the seeds 12 are smoothly fitted.

On the outer circumferential surface of the horizontal @ll feeding roll 0, slits 13 are provided around the entire circumference at intervals shorter than the horizontal width of a single seed in the left-right direction, and are perpendicular to the generatrix direction.
The depth of each slit 13 is the same as or slightly deeper than the feeding recess 11, and the left and right width is such that the seeds do not stick thereto.
A scraping knife 14 is fitted into the holder.

Each scraping knife 14 is shaped like a substantially vertical flat plate that is slightly thinner than the scraper 13, and when viewed from the side, it has an arcuate shape with the tip portion 15 and the groove bottom aligned with the groove bottom of the scraper 13. The lower surface side of the tip part 15 is shaped like a horizontal shaft feeding roll 1
Fit it so that it is located below the outer circumferential surface of 0. The scraping knife 14 is arranged alternately with spacers 16 made of synthetic resin at the same intervals as the slits 13 on the mounting shaft 17.
18 to form it. The scraping knife 14 connects both ends of the mounting shaft 17.18 to the side plate 19.1 of the seed supply device l.
#1 arrives at #9, and the tip portion 15 is attached to the horizontal axis feeding roll 1.
Install it so that it faces the seed fall section 4.

Therefore, a blower device 21 is provided at a position near the outer circumferential surface of the horizontal axis feed-out roll 10 between the scraping knife 14 and the brush 9. The blower device 21 and left and right blower pipes 22 are attached to the side plates 19 and 19 of the seed supply device 1. Air blowing ports n are formed at predetermined intervals in the left and right direction on the side of the horizontal shaft feeding roll 10 of the blowing vibrator Shio, a stopper 24 is attached to one end of the blowing pipe 22, and a cock is attached to the other end of the blowing pipe Shio. Install 25. The cock 25 has a blower fan 26 installed outside the machine.
Connect the connecting pipe connected to Shio.

The blower device 21 dries the moisture on the outer circumferential surface of the horizontal axis feed roll 10 and especially the inside of the slit 3, and also dries the moisture in the slit 3.
The air outlet 23 is for blowing away dust inside the air outlet 23.
is preferably formed facing each slit 13 and facing downward, and blows air downward into the slit 13 that rotates upward.

A second rotating leveling brush 30 whose axial direction is parallel to the axial direction of the horizontal axis feeding roll 10 and rotates in the opposite direction on the contact surface is provided at a position above the road of the horizontal axis feeding roll 10.

A first rotating leveling brush 32 is provided between the second rotating leveling brush 30 and the seed supply section 31 above the brush 9,
Excess seeds that do not fit into the feeding recess 11 and rotate together with the horizontal axis feeding roll 10 are leveled over two stages.

The first rotary leveling brush holder is formed to have a smaller diameter than the second rotary leveling brush 30, and is provided with a gap between it and the lower surface of the grain flow board 3, and the gap blade is The seeds that have been swept back by the second rotary leveling brush 30 are made to fly over the first rotary leveling brush 32 and return to the brush 8 side.

Reference numeral 34 denotes a seed guiding cover provided on the side surface of the horizontal shaft feeding roll 10, which guides the seeds fitted into the feeding recess 11 from the upper position to the lower position without damaging them. 35 is a sponge provided inside the seed guiding cover, and 36 is a seed receiving box.

(effect) Next, we will discuss the effect.

Since the present invention has the above-mentioned configuration, the present invention has the above configuration.
When the seedling box is transferred by the transfer table 2, the seeds 12 in the seed supply hopper 3 flow down on the flow grain plate 4 and reach the seed supply section 31, and then are transferred to the horizontal axis feed roll 10.
The majority of the excess seeds 12 that are not fitted into the feeding recess 11 that is fitted into the feeding recess 11 and raised by the rotation of the horizontal axis feeding roll 10, and that are not fitted into the feeding recess 11 that rotates together with the horizontal axis feeding roll 10, are The excess seeds 12 that are returned to the seed supply section 31 and leveled by the flat brush 32 and have not been fitted into the feeding recesses 11 that have passed below the first rotating leveling brush 32 are removed by the second rotating leveling brush 30. After being returned and leveled, the seeds fit into the feeding recess 11 in a horizontal row after passing under the second rotary leveling brush 30, and are guided to the seed falling part 20 by the seed guide cover 34. The seeds 12 that fall downward and do not fall on the seed fall side are removed by the tip 1 of the scraping knife 14.
5 and are forcibly dropped, and a certain amount of seeds 12 are sown into the nursery box.

In the above case, if the sowing operation is performed continuously, powdery foreign matter such as seed debris will enter the slit 13. In this state,
When sprouted seeds that have not been sufficiently cut are fed to the seed supply hopper 3, water enters the slit 13 and the foreign matter becomes wet and becomes muddy, causing the sides of the scraping knife 14 and the inner wall of the slit 13 to become wet. The seedlings accumulate in between and adhere to the side surface of the tip of the scraping knife 14, providing resistance to the rotation of the horizontal feed roll 10, and changing the amount of seeds sown in the seedling box that is transported at a constant speed.

In the present invention, between the scraping knife 14 and the brush 9, a left-right blow pipe η connected to a blow fan 26 provided outside the machine is provided, and the blow pipe 22 is provided at a predetermined interval in the left-right direction. Since the air outlet 23 is formed with
The dust inside the slit 3 is blown away downward, and the moisture inside the slit 13 is dried.

Therefore, dust is prevented from adhering to the tip 15 of the scraping knife 14.

(Effects) The conventionally known Japanese Patent Application Laid-Open No. 10907/1987 discloses a horizontal shaft in which a feeding recess in the form of horizontal grooves parallel to the @line direction and slits perpendicular to the generatrix direction are provided on the outer circumference of the outer circumferential surface. A seeding box seeding device is described that includes a feeding roll and a scraping knife fitted in the slit for scraping out seeds that are stuck in the feeding recess and do not fall.

In the known method, when the sowing operation is performed continuously, the slit becomes clogged with foreign matter in the form of seed particles. This foreign object is
When it is dry, it can be scraped out with a scraping knife, but when it is wet, such as when sowing sprouted seeds soaked in water, foreign matter that has entered the slit cannot be scraped out with a scraping knife. do not have.

However, the present invention provides a seedling box seeding device in which a drying air outlet η is opened facing the feeding recesses 11 of a horizontal axis feeding roll 10 having countless feeding recesses 11 formed on the outer peripheral surface thereof. Therefore, even when sowing budded seeds with insufficient drainage, the outer circumferential surface of the horizontal axis feeding roll 10 can be dried, so that the seeds can smoothly fit into and fall into the feeding recess 11. horizontal axis feeding roll 1
It is also possible to remove dust and the like in the slits 13, prevent foreign matter such as dust from adhering to the scraping knife 14, and achieve the effect that accurate and smooth seeding work can be performed.

[Brief explanation of drawings]

FIG. 1 is an overall sectional view of the device, and FIG. 2 is a cross-sectional plan view of the main part. Explanation of symbols 1...Seed feeding device, 2...Transverse transfer table, 3...
Seed supply hopper, 4.5... Grain board, 6... Outlet, 7... mlff board, 8... Supply amount adjustment device, 9
...Brush, 10...Horizontal shaft feeding roll, 11...
Feeding recess, 12... Seed, 13... Slit, 14
...Knife for scraping, 15...Tip, 16...Subei sani, 17.18...Mounting shaft, 19...Side plate, 20...Seed falling part, 21 Air blower, η・...Blower pipe, 23...Blower port, 24...Bung, Ro...cock, 26...Blower fan, 27...Connection pipe,
Mowing...second rotating leveling brush, 31...seed supply section,
Relaxation...first rotating leveling brush, 33...gap,...
・Seed guiding cover, ah...sponge, 36...seed receiving box. 11

Claims (1)

[Claims] A drying air outlet 2 is provided facing the feeding recesses 11 of the horizontal axis feeding roll 10 which has numerous feeding recesses 11 formed on its outer peripheral surface.
A seeding device for a seedling box with 3 openings.