JP2840765B2 - Seeding equipment for nursery boxes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a seedling box sowing apparatus.

(Prior Art) A conventionally known Japanese Patent Application Laid-Open No. Sho 64-10907 discloses a horizontal shaft in which an outer peripheral surface is provided with a horizontal groove-shaped extending recess parallel to the generatrix direction and a slit orthogonal to the generatrix direction all around. Payout roll,
A seeding device for a seedling box having a scraping knife fitted to the slit for scraping a seed that does not fall due to clogging in the feeding recess is described.

(Problems to be Solved by the Invention) In the above-mentioned known method, when the seeding operation is continuously performed, the dust is clogged with seeds in the slit. When the foreign matter is in a dry state, it can be scraped out by a scraping knife.However, when it is in a wet state, such as when seeds are immersed in water, the foreign matter entering the slit is used for scraping. Cannot be scraped with a knife.

(Purpose of the Invention) The present invention is intended to blow the outer peripheral surface of a feeding roll to dry so that accurate sowing can be performed even with sprout seeds immersed in water.

(Means for Solving the Problems) Accordingly, the present invention provides a horizontal axis feeding roll in which a horizontal groove-shaped feeding recess 11 parallel to the generatrix direction and a slit 13 orthogonal to the generatrix direction are provided on the entire outer circumference. 10 and the feeding recess 11
And a scraping knife 14 fitted to the slit 13 for scraping the seeds that are not clogged and fallen.The horizontal shaft feeding roll 10 faces the feeding recess 11, and has a drying air outlet 23. And a seeding device for a nursery box having an opening.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seed supply device provided at a position above a transfer table 2 for transferring a seedling raising box. 3 is provided. In the lower part of the seed supply hopper 3, there are provided sloping slugs 4,5.

Reference numeral 6 denotes a flow outlet formed in a lower portion of the seed supply hopper 3, reference numeral 7 denotes a supply amount adjustment plate of a supply amount adjustment device 8 attached to the seed supply hopper 3, and reference numeral 9 denotes a lower end portion of the flow tray 4 so as to be movable. The brush 9 is provided so that the tip of the brush 9 is slid on the outer peripheral surface of the horizontal axis feeding roll 10.

On the outer peripheral surface of the horizontal axis feeding roll 10, a horizontal groove-shaped feeding recess 11 parallel to the generatrix direction is formed at a predetermined interval on the entire circumference. The feeding concave portion 11 is formed to have a width in which the seeds 12 fit in one row in the horizontal direction, and to a depth to which one seed 12 fits. When the cross-sectional shape of the feeding concave portion 11 is formed on an inclined surface by cutting out a corner portion on the rotation advance side and formed on an upright wall leaving a corner portion on the rotation reverse side, the seeds 12 fit smoothly.

One seed in the left and right direction on the outer peripheral surface of the horizontal axis feeding roll 10
A slit 13 orthogonal to the generatrix direction is provided on the entire circumference at an interval shorter than the horizontal width of 12. The depth of the slit 13 is the same as or slightly deeper than the feeding recess 11, and its left and right width is
12 is formed so as not to pierce, and each slit 13 is fitted with a scraping knife 14.

Each scraping knife 14 is formed by a substantially vertical flat plate slightly thinner than the slit 13, and when viewed from the side, the upper surface side of the tip portion 15 is formed in an arc shape matching the groove bottom of the slit 13, The lower surface side of the distal end portion 15 is fitted so as to be positioned lower than the outer peripheral surface of the horizontal-axis feeding roll 10. Knife for scraping 14
Are formed by attaching them to mounting shafts 17 and 18 alternately with spacers 16 made of synthetic resin so as to be at the same interval as the slit 13. The scraping knife 14 is configured such that both ends of the mounting shafts 17 and 18 are axially attached to the side plates 19 and 19 of the seed supply device 1 so that the tip 15 faces the seed dropping portion 20 of the horizontal shaft feeding roll 10. Position and mount.

An air blower 21 is provided between the scraping knife 14 and the brush 9 at a position near the outer peripheral surface of the horizontal advancing roll 10. The blower 21 attaches a left-right blower pipe 22 to the side plates 19 of the seed supply device 1. On the side of the roll 10 on the horizontal axis of the blower pipe 22, the air outlet
23, a plug 24 is attached to one end of the blower pipe 22, and a cock 25 is attached to the other end of the blower pipe 22. A connection pipe 27 connected to a blower fan 26 provided outside the machine is connected to the cock 25.

Since the blower 21 is for drying the outer peripheral surface of the horizontal axis feeding roll 10 and particularly for drying the moisture in the slit 13 and blowing off the dust in the slit 13, the blower outlet 23 is
Preferably, the slits 13 are formed to face each other, and the air is blown downward into the slit 13 that rotates upward.

At a position substantially above the horizontal axis feeding roll 10, a second rotating flat brush 30 whose axis is parallel to the axis of the horizontal axis feeding roll 10 and rotates in the opposite direction on the contact surface is provided.

A first rotating leveling brush 32 is provided between the second rotary leveling brush 30 and the seed supply unit 31 above the brush 9, and is not fitted into the feeding recess 11, and is shared with the horizontal axis feeding roll 10. The rotating excess seeds are leveled over two stages.

The first rotating leveling brush 32 is formed to have a small diameter by the second rotating leveling brush 30, and is provided with a gap 33 between the lower surface of the slug 3 and the gap 33, The seeds swept back by the two-rotation leveling brush 30 are further jumped by the first rotation leveling brush 32 to return to the brush 8 side.

Numeral 34 denotes a seed guiding cover provided on the side surface of the horizontal axis feeding roll 10, and guides the seeds fitted in the feeding concave portion 11 from the upper position to the lower position so as not to be damaged. 35 is a seed induction cover
A sponge provided inside 34 and a seed receiving box 36 are provided.

(Operation) Next, the operation will be described.

Since the present invention is configured as described above, the seeds 12 in the seed supply hopper 3 flow down on the flocking plate 4 when the seeds 12 are put into the seed supply hopper 3 and the seedling box is transferred by the transfer table 2. To the seed supply unit 31, fitted into the feeding recess 11 of the horizontal axis feeding roll 10, rises by the rotation of the horizontal axis feeding roll 10,
Most of the excess seeds 12 that are not fitted in the feeding recesses 11 that co-rotate with the horizontal axis feeding roll 10 are returned to the seed supply unit 31 by the first rotation leveling brush 32 and leveled, and the first rotation leveling is performed. The excess seeds 12 that have not fit into the feeding recess 11 that has passed below the flat brush 32 are returned and leveled by the second rotating leveling brush 30, and are fed out below the second rotary leveling brush 30. Recess 11
The seeds 12 fit in a row in a row, are guided to the seed dropping part 20 by the seed guiding cover 34, and fall downward at the seed dropping part 20,
The seeds 12 that do not fall in the seed dropping section 20 come into contact with the tip 15 of the scraping knife 14 and are forcibly dropped, and a certain amount of the seeds 12 is sown in the seedling raising box.

In this case, if the seeding operation is performed continuously, powdery foreign substances such as seed chips enter the slits 13. In this state,
When sprouting seeds that are not sufficiently drained are supplied to the seed supply hopper 3, water enters the slits 13 and the foreign matter becomes wet and mud-like, and the gap between the side surface of the scraping knife 14 and the inner wall of the slits 13 is formed. And accumulates on the side surface of the tip of the scraping knife 14, giving resistance to the rotation of the horizontal axle feeding roll 10, and changing the seeding amount to the seedling box transferred at a constant speed.

In the present invention, between the scraping knife 14 and the brush 9, a left-right blower pipe 22 connected to a blower fan 26 provided outside the machine is provided, and the blower pipe 22 has a predetermined space in the left-right direction. The air blown from the blower fan 26 is blown out toward the slit 13 rotating upward from the blower outlet 23, and the dust in the slit 13 is directed downward. The water in the slit 13 is dried while being blown off.

Therefore, it is possible to prevent dust from adhering to the tip portion 15 of the scraping knife 14.

(Effect) A conventionally known Japanese Patent Application Laid-Open No. Sho 64-10907 discloses a horizontal shaft feeding method in which a feeding recess in the form of a horizontal groove parallel to the generatrix direction and a slit perpendicular to the generatrix direction are provided on the entire outer circumference. A seeding device for a seedling box having a roll and a scraping knife fitted to the slit for scraping seeds that do not fall into the feeding recess is described.

In the above-mentioned known one, when the seeding operation is performed continuously, the dust is clogged with seeds in the slit. When the foreign matter is in a dry state, it can be scraped out by a scraping knife.However, when it is in a wet state, such as when seeds are immersed in water, the foreign matter entering the slit is used for scraping. Cannot be scraped with a knife.

However, the present invention is directed to a laterally grooved feeding recess 11 parallel to the generatrix direction on the outer peripheral surface and a slit 13 orthogonal to the generatrix direction.
And a slit 13 for scraping seeds that do not fall due to clogging in the feeding recess 11
And having a scraping knife 14 fitted to
The horizontal axis feeding roll 10, facing the feeding recess 11,
Since the seedling device is used as a seedling raising box having the drying blow opening 23 opened, the outer peripheral surface of the horizontal axis feeding roll 10 can be dried even in the case of seeding work of sprouting seeds with insufficient drainage. Therefore, fitting and dropping of the seeds into the feeding recess 11 are smoothly performed, dust and the like in the slit 13 of the horizontal shaft feeding roll 10 can be removed, and foreign matter such as dust can be removed by the scraping knife 14. Adhesion can be prevented, and the effect of performing accurate and smooth sowing work can be achieved.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of the apparatus, and FIG. 2 is a vertical sectional plan view of a main part. DESCRIPTION OF SYMBOLS 1... Seed supply device, 2... Horizontal transfer table, 3... Seed supply hopper, 4, 5.
Adjusting plate, 8 ... Supply amount adjusting device, 9 ... Brush, 10 ...
Horizontal-axis feeding roll, 11 ... feeding recess, 12 ... seed, 13 ...
Slit, 14 ... Scrape knife, 15 ... Tip, 16 ...
Spacer, 17, 18… Mounting shaft, 19… Side plate, 20… Seed dropping part, 21 Blower, 22… Blower pipe, 23… Blower outlet, 24… Plug, 25… Cock, 26… … Blower fan, 27…
... Connecting pipe, 30 ... Second rotary leveling brush, 31 ... Seed supply unit, 32 ... First rotary leveling brush, 33 ... Gap, 34 ...
… Seed guiding cover, 35… sponge, 36… seed receiving box.

Claims (1)

(57) [Claims] 1. A horizontal-axis feeding roll 10 having an outer peripheral surface provided with a horizontal groove-shaped feeding recess 11 parallel to the generatrix direction and a slit 13 perpendicular to the generatrix direction on the entire circumference, and the feeding recess 11 is jammed. And a scraping knife 14 fitted to the slit 13 for scraping the seeds that do not fall off.In the horizontal-axis feeding roll 10, the drying air outlet 23 is opened facing the feeding recess 11. Seeding equipment for nursery boxes.