JP2794204B2 - 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) Japanese Patent Application Laid-Open No. Sho 64-10907 discloses a method of flattening excess seeds that do not fit in the feeding recess at a position above a horizontal axis feeding roll having a feeding recess formed on the outer peripheral surface. It describes a seedling box seeding device provided with a leveling brush.

(Problems to be Solved by the Invention) The above-mentioned known seedling box seeding apparatus sometimes uses sprouted seeds that are not sufficiently drained. When such seeds are used, the tips of the rotating leveling brush become increasingly wet and stick to each other. When the rotating leveling brush tips stick to each other, not only does the brush effect decrease,
The diameter becomes smaller, and a gap is formed between the outer peripheral surface of the horizontal axis feeding roll and the seeding amount changes.

That is, the tip of the dry brush is in contact with the outer peripheral surface of the horizontal shaft feeding roll as shown in FIG. However, when wet with water, the result is as shown in FIG. 3, and a slight gap is formed between the roll and the outer peripheral surface of the horizontal shaft feeding roll, and the feeding amount also changes.

(Object of the Invention) The present invention is intended to enable seeding with an accurate sowing amount even if a sprouting seed with insufficient drainage is supplied to a seed supply hopper.

(Means for Solving the Problem) Accordingly, the present invention provides a horizontal shaft feeding roll 10 having a feeding recess 11 formed on the outer peripheral surface, and a rotating flat brush 15 provided above the horizontal shaft feeding roll 10. A seedling box seeding apparatus, wherein a seedling box seeding apparatus is provided at a desired position on the rotating and descending side of the brush 15 facing an air outlet 22 for blowing the tip of the brush 15 to dry the brush 15. It is.

(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 at 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 brush provided at a lower end portion of the flow grain plate 4. And the tip of the brush 9 is moved to the horizontal axis
To the outer peripheral surface of

On the outer peripheral surface of the horizontal shaft feeding roll 10, a horizontal groove-shaped feeding recess 11 parallel to the generatrix direction is formed at a predetermined interval over the entire length. 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.

One seed in the left and right direction on the outer peripheral surface of the horizontal axis feeding roll 10
Slits 13 are provided on the entire circumference at intervals 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 a scraping knife 14 is fitted into each slit 13.

At a position substantially above the horizontal shaft feeding roll 10, a second rotating flat brush 15 whose axis is parallel to the axis of the horizontal shaft feeding roll 10 and rotates in the opposite direction on the contact surface is provided.

A first rotating leveling brush 17 is provided between the second rotary leveling brush 15 and the seed supply unit 16 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 17 is formed to have a smaller diameter than the second rotating leveling brush 15, and is provided with a gap 18 between the brush and the lower surface of the drifting plate 3. The seeds swept back by the two-rotation leveling brush 15 are further rotated by the first rotation leveling brush.
17 is made to jump back to the brush 8 side.

Thus, a blower 19 is provided at a desired position on the rotation lowering side from the position above the second rotating leveling brush 15. The blower 19 attaches a left-right blower pipe 20 to the side plates 21 of the seed supply device 1. On the second rotating leveling brush 15 side of the blowing pipe 20, a blowing port 22 is formed at predetermined intervals in the left-right direction, a stopper 23 is attached to one end of the blowing pipe 20, and the other end of the blowing pipe 20 is attached. Installs cock 24. A connection pipe 26 connected to a blower fan 25 provided outside the machine is connected to the cock 24.

Reference numeral 27 denotes a seed guiding cover provided on the side surface of the horizontal axis feeding roll 10, and guides the seed fitted into the feeding recess 11 from the upper position to the lower position without damaging the seed. 28 is a seed induction cover
A sponge provided inside 27 and 29 is a seed receiving box.

(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 section 16, fitted into the feeding recess 11 of the horizontal axis feeding roll 10, and raised 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 16 by the first rotation leveling brush 17 and leveled, and the first rotation leveling is performed. Excess seeds 12 that have not passed into the feeding recess 11 passing below the flat brush 17 are returned and leveled by the second rotating leveling brush 15.

Therefore, the seeds 12 are fitted in a horizontal row in the feeding concave portion 11 that has passed below the second rotating leveling brush 15, and the seeds 12 are guided downward by the seed guiding cover 27, and fall downward at the lowest point,
Exactly a certain amount of seeds 12 are sown in the nursery box.

In the above case, if the sprouting seeds 12 not sufficiently drained are supplied to the seed supply hopper 3, the second rotating leveling brush
Since the tips of the 15 are adhered to each other and rotated by the moisture on the seed surface, the rotation diameter of the second rotating leveling brush 15 becomes small, and a slight gap is formed between the second rotating leveling brush 15 and the outer peripheral surface of the horizontal shaft feeding roll 10. For this reason, many seeds 12 fit into the feeding recess 11 due to the gap, and excess seeds 12 that do not fit accurately into the feeding recess 11 pass through, so that the seeding amount changes.

In the present invention, on the rotation lowering side of the second rotating leveling brush 15, a left-right blower pipe 20 connected to a blower fan 25 provided outside the machine is provided, and the blower pipe 20 has a predetermined left-right direction. Since the air outlet 22 is formed at intervals, the air blown from the air blower fan 25 blows out from the air outlet 22 toward the second rotating leveling brush 15, and the second rotating leveling brush 15
Dry the moisture adhering to 15.

Further, since the blower pipe 20 is provided on the rotation lowering side of the second rotating leveling brush 15, the winged seeds 12 attached to the tip of the second rotating leveling brush 15 and co-rotating are transferred to the seed receiving box 29. Does not inhibit the action of eliminating.

(Effect) A conventionally known Japanese Patent Application Laid-Open No. Sho 64-10907 discloses that a rotation leveler for leveling excess seeds that do not fit in the feed-out recess is provided above a horizontal-axis feed roll having a feed-out recess formed on the outer peripheral surface. A seeding device for a nursery box provided with a flat brush is described.

In the known seedling box seeding apparatus, sprouting seeds that have not been sufficiently drained may be used. When such seeds are used, the tips of the rotating leveling brush become increasingly wet and stick to each other. When the rotating leveling brush tips stick to each other, not only does the brush effect decrease,
The diameter becomes smaller, and a gap is formed between the outer peripheral surface of the horizontal axis feeding roll and the seeding amount changes.

However, the present invention provides a seedling box seeding device provided with a horizontal axis feeding roll 10 having a feeding recess 11 formed on the outer peripheral surface thereof and a rotating flat brush 15 provided at a position above the horizontal axis feeding roll 10. At a desired position on the rotating lower side of the brush 15, the seedling raising box seeding device facing the air outlet 22 for blowing the tip of the brush 15 to dry the brush 15 is provided. By drying the water of the second rotating leveling brush 15 by the air blow, the brush effect is exhibited, and an effect of sowing a constant sowing amount accurately can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall sectional view of the apparatus, FIG.
FIG. 3 and FIG. 4 are explanatory diagrams of problems in a known example. 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 ... Second rotating leveling brush, 16 ... Seed supply unit, 17 ... First rotating leveling brush,
18… Gap, 19 …… Blower, 20 …… Blower pipe, 21…
… Side plate, 22… vent, 23… stopper, 24… cock, 25…
... Blower fan, 26 ... Connecting pipe, 27 ... Seed guide cover, 28 ... Sponge, 29 ... Seed receiving box.

Claims (1)

(57) [Claims] 1. A seedling apparatus for a seedling box, comprising: a horizontal shaft feeding roll 10 having a feeding recess 11 formed on an outer peripheral surface thereof; and a rotating flat brush 15 provided at a position above the horizontal shaft feeding roll 10.
The brush 15 is positioned at a desired position on the rotation lowering side of the brush 15.
A seedling box seeding device having an air outlet 22 for blowing the tip of the brush to dry the brush 15.