JPH0132828Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a seedling-raising seeding machine that sows seeds while transferring them to a seedling-raising box.

[Prior Art] This type of conventional technology is shown in FIG. 4. This seeding machine has a lower opening 24 of the hopper 13.
Place the feed roll 20 below the hopper 13.
The brush 26 provided at the bottom of the feed roll 20 feeds out the seeds while adjusting the amount of seeds that enter the feed groove 21, and the seeds fall onto the bed soil into the seedling box 9 that is transported below. .

[Problem that the invention attempts to solve]

A partition plate 36 is provided in the hopper 13 so that the entire load of the seeds is not applied to the upper surface of the feed roll 20, that is, a part of the load is borne by the partition plate 36. However, the load of the seeds flowing from the brush mounting wall side of the hopper 13 is applied directly to the surface of the feed roll 20, and the seeds entering the feed groove 21 are pressed by this load, The amount of seeds may be greater than the amount set by the brush 26. Also, brush 2
Since 6 is a fixed linear brush, the seeds in the feeding groove 21 come into sliding contact with the brush 26 momentarily, and the ability to push the seeds into the groove is poor, causing the seeds to scatter due to the spring action of the bristles, etc. The accuracy of adjusting the amount of seeds is low.

Therefore, in the conventional technology, the amount of seeds sown is higher than the optimum amount, resulting in stuffy seedlings, or uneven seeding occurs due to scattering, resulting in large variations in the number of plants planted per plant, resulting in missing plants. There were times when I did something like that.

[Means to solve the problem]

The present invention solves the problems of the prior art by providing a guide path 43 between the lower opening 24 of the hopper 13 and the feeding roll 20 that guides and supplies the seeds to the feeding groove 21 while blocking the seed load from above. All of these problems can be solved by forming the feeding amount adjusting brush 26 as a rotating brush that rotates and slides in contact with the feeding roll 20 in the opposite direction.

That is, the specific configuration of the problem solving means of the present invention is as follows:
A pair of inclined bottom walls 13 are provided above the seedling box transfer mechanism 2.
The hopper 13 forming a lower opening 24 at a and 13b and the feed roll 20 below the hopper 13 are arranged, and a brush 26 adjusts the amount of seeds entering the feed groove 21 of the feed roll 20.
A guide path 43 is formed between the lower opening 24 of the hopper 13 and the feeding roll 20 to guide and supply the seeds A to the feeding groove 21 while blocking the seed load in the hopper 13, and the brush 26 is connected to the feeding roll. 20, the seedling seedling seeder is formed of a rotating brush that is positioned substantially above the feed roll 20, can move forward and backward with respect to the feed roll 20, and rotates and slides in the opposite direction. A partition plate 45 protrudes downward from the lower opening 24 and is provided in a position adjustable manner along the inclined bottom wall 13a, and the other inclined bottom wall 1 of the hopper 13.
The guide plate 44 is disposed across the bottom of the lower opening 24 from the vicinity of the lower end of the guide plate 3b to the vicinity of the supply roll 20, and the upper part of the guide plate 44 is pivotally supported so as to be able to swing away from the supply roll 20. Characterized by points.

[Effect]

The guide path 43 is formed by a guide plate 44, a partition plate 45, etc., and has a structure that does not allow linear communication between the lower opening 24 of the hopper 13 and the feed roll 20, so that the seed load in the hopper 13 is separated. It is supported by the plate 45 and the support wall 44b of the guide plate 44, and is blocked from the seeds A near the feeding roll 20, and the seeds near the feeding roll 20 are pushed into the feeding groove 21 only by the seed load and gravity of that part. A rotating brush 26 that enters the groove and slides in rotation in the opposite direction to the feed roll 20 removes seeds in excess of the required number of seeds while pushing them into the groove, and only the required number of seeds are fed out. When the guide plate 44 swings around its upper part, its lower part separates from the feed roll 20 and discharges the seeds A accumulated between the hopper 13 and the feed roll 20, and the partition plate 45 moves toward the inclined bottom wall 13a. By adjusting the position along the hopper 13, the amount of seeds supplied from the hopper 13 to the guide path 43 is changed.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In Figs. 1 to 3, reference numeral 1 denotes a seedling seeding machine, and a pair of left and right frames 3 supporting a seedling box transfer mechanism 2 are shown.
A seeding device 4 is mounted on top.

The left and right frames 3 are formed of U-shaped members in cross section, and are connected to each other at a plurality of points, and support a large number of rotating shafts 5 at equal intervals in the longitudinal direction. Each rotating shaft 5 is provided with a roller 6 and a sprocket 7. A transfer mechanism is provided in which driving force from a motor (not shown) can be transmitted through the chain 8, and by these, the seedling growing box 9 placed on the roller 6 is moved at a constant speed in the direction of the arrow 10. 2 are configured.

Reference numeral 12 denotes a pair of stand plates erected on the left and right frames 3, and a hopper 13 is installed between the left and right stand plates 12.
is fixed via a thumbscrew 14, and a roll shaft 15 is rotatably supported.

The roll shaft 15 is supported by a bearing case 16 fixed to the stand plate 12 via a bearing 17, and power is transmitted from the rotating shaft 5 of the transfer mechanism 2 through a winding transmission means 18.

37 is a sprocket 38 of the winding transmission means 18
(or a pulley) and the roll shaft 15, a ratchet wheel 40 is fitted to the end of the roll shaft 15 through a sliding key 39 so as to be slidable and rotatable integrally with the spring 41. The ratchet wheel 40 is pressed against the sprocket 38 by
pawl 40a and pawl 38a provided on sprocket 38
and are in occlusion.

At the center of this roll shaft 15 is a feed roll 20.
is provided. The feed roll 20 has a large number of feed grooves 21 on the outer periphery, and is capable of being spread in rows and distributed. It is fixed to the shaft 15.

A guide path 43 is formed between the feed roll 20 and the lower opening 24 of the hopper 13. This guide path 43 is formed by a guide plate 44, a partition plate 45, and left and right stand plates 12. The guide plate 44 has a mounting rod 46 at its upper end.
is supported by passing through the left and right stand plates 12, and includes a vertical wall 44a hanging from the lower opening 24, a support wall 44b crossing below the lower opening 24, and a horizontal wall 44c extending horizontally from the lower end of the support wall 44b. Bracket portions 44d formed at the left and right ends of this horizontal wall 44c are fixed to the stand plate 12 via bolts 47. That is, the guide plate 44 is disposed across the bottom of the lower opening 24 from near the lower end of the inclined bottom wall 13b of the hopper 13 to near the feed roll 20, and its upper part is supported by the mounting rod 46 penetrating the stand plate 12. , and its lower part is only fixed with a bolt 47, so by removing this bolt 47, it becomes possible to swing around the mounting rod 46, and when it swings, its lower part is separated from the feed roll 20. It becomes possible to make seeds fall.

The partition plate 45 is connected to one inclined bottom wall 13 of the hopper 13.
It is a cross-sectional dial provided on the lower surface of a so that its position can be freely adjusted in the direction of arrow 48, and intersects with the extension line of the other inclined bottom wall 13b of the hopper 13.
can bear the load of seeds flowing along. That is, the partition plate 45 extends from the inclined bottom wall 13a to the lower opening 2.
4 protrudes downward and can be freely adjusted in position along the inclined bottom wall 13a, so by adjusting the position, the distance from the guide plate 44 is changed, and the amount of seeds falling in the guide path 43 is adjusted. . The load of the seeds flowing along one inclined bottom wall 13a is borne by the vertical wall 44a, and the load of the seeds above the lower opening 24 is borne by the bearing wall 44b and the partition plate 45.

Reference numeral 26 denotes a rotating brush disposed above the feed roll 20, which is formed by winding and fixing a band-shaped brush material 52 spirally around a brush shaft 51, and both ends of the brush shaft 51 are attached to a support member 53 with a bearing case. 54
It is rotatably supported via a bearing 55, has a gear 56 at one end, and engages with a gear 57 provided at the end of the roller shaft 15 via an idler gear 58, so that the power of the roller shaft 15 is transmitted. and rotated clockwise in FIG. The rotating brush 26 rotates in the same direction as the feed roll 20, and rotates and slides in the opposite direction at the sliding contact portion.

The left and right support members 53 are swingably supported by an idler gear shaft 59, and have a handle portion 53a protruding from at least one of them.
By holding and swinging the brush shaft 51
moves in an arc around the idler gear shaft 59 to adjust its vertical position, and the rotary brush 26 moves forward and backward relative to the feed roll 20 to adjust the amount of overlap during sliding. That is, when the rotating brush 26 is advanced toward the feeding roll 20 side, the length of the brush hairs entering into the feeding groove 21 becomes longer, and more seeds are discharged from the groove 21, reducing the amount of seed feeding, and vice versa. In this case, increase the amount of seed feeding.

A position fixing means 61 is provided between the handle portion 53a and the stand plate 12. This position fixing means 61 is achieved by screwing the tip of a butterfly bolt 63 passing through a long hole 62 formed in the stand plate 12 onto the handle portion 53a, and by tightening the butterfly bolt 63, the handle portion 53a is attached to the stand plate 12. It can be fixed at any position that is swung relative to the main body.

Left and right bearing cases 54 for the shaft 51 of the rotating brush 26
is positioned in the axial direction by the stand plate 12, and its small diameter portion is fitted into an elongated hole 64 formed in the stand plate 12. This long hole 64
is an arc shape centered on the idler gear shaft 59.

A cover plate 66 that covers the upper side of the guide path 43 is welded to the partition plate 45.
overlaps the rotating brush 26 in a side view, and a notch 66a is formed so that the rotating brush 26 does not come into significant contact even when the position is adjusted.
The upper edge of this notch 66a is in slight constant contact with the outer periphery of the rotating brush 26, and not only does it brush off the seeds that adhere to the rotating brush 26 and move around, but also discharges them from the feeding groove 21 by the rotating brush 26. This prevents the seeds from scattering outside the guide path 43.

Reference numeral 67 denotes a pair of left and right side guide plates, which are fixed to the inner surface of the stand plate 12 and guide the seeds laterally from the guide path 43 to the surface of the feed roll 20.

Reference numeral 28 denotes a guide plate having approximately the same curvature as the outer circumferential surface of the feeding roll 20, which can come into contact with the feeding side of the feeding roll 20, and directs the seeds A that have entered the feeding groove 21 on the hopper 13 side to the lower part of the feeding roll 20. Guide the object up to the point without letting it fall naturally.

The guide plate 28 has a support shaft 29 at the top, and both ends of the guide plate 28 are inserted into and supported by long holes 30 formed in the stand plate 12 in the longitudinal direction.
There are pins 32 on the brackets 31 provided on the left and right ends of the
This pin 32 is inserted and supported in a long hole 33 formed in the stand plate 12 in the longitudinal direction, and a tension spring 34 is provided between it and the stand plate 12.
is installed.

The guide plate 28 is movable forward and backward relative to the feed roll 20 through elongated holes 30 and 33, and is pressed by a spring 34, so that even if the seeds A protrude from the feed groove 21, they are crushed. I will guide you without hesitation.

In addition, the height (gap) H from the roller 6 to the feeding roll 20 is slightly higher than the height of the seedling growing box 9.
Compared to the prior art, the lower part of the feed roll 20 is positioned much closer to the top surface of the seedling growing box 9, and the distance h from the feed groove 21 to the top surface of the bed soil is shorter.

[Effect of idea]

According to the present invention described in detail above, the hopper 1 is provided between the lower opening 24 of the hopper 13 and the feed roll 20
Since the guide path 43 is formed to guide and supply the seeds A to the feeding groove 21 while cutting off the seed load in the hopper, when the seeds A enter the feeding groove 21, the load of the seeds in the hopper is not applied. Since there is no push-in,
The amount of seeds can be accurately adjusted by the brush 26, and since the brush 26 is a rotating brush that can freely move forward and backward with respect to the feed roll 20 and rotates in sliding contact in the opposite direction, the seeds in the feed groove 21 are transferred to the brush 26.
The brush 26 pushes the seeds into the groove and removes excess seeds at the same time as compared to the conventional technology, so the amount of seeds can be accurate and the occurrence of stuffy seedlings and uneven sowing. can be reduced, and variations and stock shortages can be reduced. Also,
The partition plate 45 forming the guide path 43 allows the hopper 13 to
The amount of seeds dropped from the hopper 13 can be roughly adjusted in accordance with the amount of seeds sown by the feed roll 20.
In addition, the guide plate 44 forming the guide path 43 can be used to take out the seeds A from the hopper 13 to the feed roll 20, and the amount of seeds A at the end of the work can be adjusted. It becomes easy to take out and replace seeds.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the present invention, where Figure 1 is a front cross-sectional view, Figure 2 is a cross-sectional view taken along the - line in Figure 1, Figure 3 is a cross-sectional view of the feed roll, and Figure 4 is a cross-sectional view of the feed roll. FIG. 1 is a cross-sectional explanatory diagram showing a conventional technique. 1... Seeding machine for seedling raising, 2... Seedling raising box transfer mechanism,
4... Seeding device, 9... Seedling raising box, 13... Hopper, 20... Feeding roll, 21... Feeding groove,
24... Lower opening, 26... Brush, 43... Guide path, 44... Guide plate, 45... Partition plate, A...
seed.

Claims (1)

[Claims for Utility Model Registration] A pair of inclined bottom walls 1 are provided above the seedling box transfer mechanism 2.
The hopper 13 forming a lower opening 24 with 3a and 13b and the feed roll 20 below the hopper 13 are arranged, and the brush 2 adjusts the amount of seeds that enter the feed groove 21 of the feed roll 20.
6, a guide path 43 is formed between the lower opening 24 of the hopper 13 and the feed roll 20 to guide and supply the seeds A to the feed groove 21 while blocking the seed load in the hopper 13, and the brush 26 is fed out. In a seedling seedling seeding sowing machine formed of a rotating brush positioned substantially above the roll 20, movable forward and backward with respect to the feed roll 20, and rotating and sliding in opposite directions, the guide path 43 is located on one inclined bottom wall of the hopper 13. A partition plate 45 protrudes downward from the lower opening 24 from the lower opening 24 and is provided in a position adjustable manner along the inclined bottom wall 13a, and the other inclined bottom wall 1 of the hopper 13.
The guide plate 44 is disposed across the bottom of the lower opening 24 from the vicinity of the lower end of the guide plate 3b to the vicinity of the supply roll 20, and the upper part of the guide plate 44 is pivotally supported so as to be able to swing away from the supply roll 20. A seedling seeding machine characterized by: