JPH07327408A - Sowing machine - Google Patents

Abstract

PURPOSE:To stabilize the quantities of seeds fed into seed-receiving depressions formed on a sowing roll in a sowing machine. CONSTITUTION:In a sowing machine produced by forming many seed-receiving depressions 2 on the circumferential surface of a sowing roll 1 capable of being freely rotated on a lateral axis in a state arranged in the circumferential direction, disposing a hopper 3 for feeding the feeds into the seed-receiving depressions 2, and further disposing a sowing quantity-controlling rotation brush 6 for sweeping out and returning excessive seeds among the seeds fed into the seed-receiving depressions 2 toward a position for feeding the seeds from the hopper 3, a guide plate 12 for guiding the returned seeds swept out with the sowing quantity-controlling rotation brush 6 to the place for feeding the seeds from the hopper 3 without facing to the circumferential surface of the sowing roll 1 is disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper for forming seeds in a plurality of seed receiving recesses arranged in the circumferential direction on a peripheral surface of a seeding roll rotatable about a lateral axis and supplying seeds to the seed receiving recesses. The present invention relates to a seeding machine provided with a rotary brush for controlling a seeding amount for sweeping out excess seeds of seeds supplied to the seed storage recess toward the seed supply position from the hopper.

[0002]

2. Description of the Related Art Conventionally, seeds swept by a rotary brush for controlling the seeding amount are returned to the seed feeding position from a hopper along a path facing the peripheral surface of a seeding roll.

[0003]

However, the number of seeds in the seed accommodating recess may be insufficient because the seeds in the seed accommodating recess may be splashed by the collision with the seeds swept out by the rotary brush for controlling the seeding amount. However, there is room for improvement in terms of stably supplying a fixed number of seeds to one seed receiving recess. An object of the present invention is to return seeds reduced by a rotary brush for seeding amount control, to a seed supply position from a hopper in a state that does not cause a shortage of the number of seeds in the seed accommodating recess, and a fixed number in one seed accommodating recess. The point is to stably supply seeds.

[0004]

A feature of the present invention is that a plurality of seed-accommodating recesses are formed in a circumferential direction on a peripheral surface of a seeding roll rotatable about a lateral axis, and the seed-accepting recesses are provided in the seed-accepting recess. In a seeding machine provided with a hopper for supplying seeds, a seeding amount control rotary brush that sweeps out excess of seeds supplied to the seed storage recess toward the seed supply position from the hopper, by a seeding amount control rotary brush. The purpose is to provide a guide plate that guides the seeds to be swept out to the seed supply position from the hopper without facing the peripheral surface of the sowing roll 1.

[0005]

In other words, the seeds swept out by the sowing amount control rotary brush are returned to the seed supply position from the hopper while being received by the guide plate, so that the reduced seeds collide with the seeds in the seed accommodating recess. It is possible to reliably prevent such a situation by the isolation action by the guide plate, eliminate the shortage of the number of seeds in the seed storage recess due to reduced seed collision, and stably supply a fixed number of seeds to one seed storage recess The number can be favorably arranged.

[0006]

As a result, a certain number of seeds can be stably supplied to one seed receiving recess, and the number of seeds can be satisfactorily aligned.
It has become possible to provide a sowing machine having an even better seeding function.

[0007]

EXAMPLE As shown in FIG. 1, a large number of seed accommodating recesses 2 for row seeding and point seeding are formed in a circumferential direction on a peripheral surface of a sowing roll 1 which is rotatable about a lateral axis. A hopper 3 for supplying seeds such as rice is provided in the seed accommodating recess 2, and a seed feeding rotary brush 5 which is rotatable about a horizontal axis is provided at a seed supplying position from the hopper 3 and is supplied to the seed accommodating recess 2. Surplus of seeds produced in hopper 3
The seed amount control rotary brush 6 that sweeps and returns toward the seed supply position from the seed is provided rotatably around the lateral axis, and the seed holding guide 7 for the seed in the seed accommodating recess 2 is provided for seed amount control. From near the rotating brush 6 nursery box 8
The seeding machine is provided over the soil sowing position of the seedling raising box 8 that is continuously conveyed by the conveyor 11 to perform horizontal streaking or spot seeding. In this example, a seedling raising sheet 9 to be described later is laid on the bottom of the seedling raising box 8 and seeding is performed on the seedling raising box 8 filled with the bed soil 10.

A guide plate 12 for guiding seeds swept and reduced by the rotating brush 6 for controlling the seeding amount to a seed feeding position from the hopper 3 is provided with a fixed angle adjustable by swinging around a support shaft 13 to control the seeding amount. Inconvenience of receiving the reduced seed by the rotary brush 6 for use by the guide plate 12 and returning it to the seed supply position from the hopper 3 without facing the peripheral surface of the sowing roll 1 and colliding the reduced seed with the seed in the seed accommodating recess 2. Such a situation is prevented by the separating action of the guide plate 12, the shortage of the number of seeds in the seed storage recess 2 due to the reduced seed collision is eliminated, and a fixed number of seeds are stably supplied to one seed storage recess 2. According to the size of the seeds, the number of plants is arranged to be the same, and the interval between the seeding roll 1 side of the guide plate 12 and the seeding roll 1 is adjusted by changing the fixed angle of the chute 12. I can do it It is configured to.

The seedling-growing sheet 9 is attached in order to stabilize the shape of the bottom of the floor and ensure vertical feeding when loaded in the seedling planting device, and is made of a flexible synthetic resin. It is made by molding. In order to form the seedling-growing sheet 9, a large number of floor-soil locking projections 9b and drainage holes 9c are provided in the thin flat-plate-shaped floor soil-seedling placement portion 9a, and the seedling-growing sheet 9 and the seedling-growing box 8 are provided between the seedling-growing sheet 9 and the seedling-growing box 8 during seedling raising. A large number of ridges 9d for forming a space for drainage and air supply are arranged in parallel on the bottom surface of the floor soil seedling placement portion 9a, and the mat-like seedlings are placed together with the seedling raising sheet 9 on the seedling placement table of the seedling planting device. It is configured to do. That is, as shown in FIG. 4, the seedling raising sheet 9 in which the mat-like seedlings are firmly bonded by the action of the floor soil locking projection is placed on the seedling placing table 14, and the seedling placing table 14 is moved along the sliding rails 15. And left and right reciprocally driven with a constant stroke, picking up one seedling from the lower end of the seedling placing table 14 with the planting claws 16 and planting, and each time the seedling placing table 14 reaches the left and right stroke ends, the seedling feeding rack is placed. The sprocket-shaped vertical feeding device 17 that engages with the ridge 9d that also serves as the sprocket-shaped vertical feeding device 17 feeds the seedling-growing sheet 9 to the seedling take-out port side by the planting claw 16 and the scraper 18 separates the seedling-growing sheet 9 from the mat-shaped seedling 19. It is configured so as to be rolled up and collected in the storage section 20. Further, the scraper 18 is attached to the mat-shaped seedling 19 and the seedling-growing sheet 9 so that the fixed angle can be freely adjusted by swinging around the support shaft 21.
The scraper 18 is so constructed that the tip position of the scraper 18 can be adjusted so as to achieve good separation, and as shown in FIG.
A plurality of claw-shaped members 18a arranged side by side in the lateral direction of the seedling stand 14
Is attached to the connecting member 18b to form the scraper 18, and the claw-shaped member 18a is configured to act between the ground soil engaging projections 9b.

[Other Embodiments] The shape, size, arrangement, etc. of the seed accommodating concave portion 2 of the sowing roll 1 can be appropriately changed. The installation range, shape, etc. of the guide plate 12 for guiding the reduced seeds by the sowing amount control rotary brush 6 can be appropriately changed. The seeding target and seed type do not matter, even if the seeding machine is independently formed,
It may be combined with another device.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a vertical side view of a seeder

[Figure 2] Plan view of the nursery sheet

FIG. 3 is a view taken along the line AA of FIG.

[Fig. 4] Side view of the vertical feeding part of the seedling planting device

FIG. 5 is a perspective view of the scraper.

[Explanation of symbols]

 1 Seeding roll 2 Seed receiving recessed portion 3 Hopper 6 Rotating brush for seeding amount control 12 Guide plate

Claims (1)

[Claims] 1. A plurality of seed accommodating recesses (2) are formed in a circumferential direction on a peripheral surface of a sowing roll (1) rotatable about a lateral axis, and the seed accommodating recesses (2) are provided with seeds. A seed receiving recess (2) provided with a hopper (3) for feeding
A seeding machine provided with a rotary brush (6) for seeding amount control, which sweeps out excess of the seeds supplied to the hopper (3) toward a seed supply position, the rotary brush (6) for controlling seeding amount. ) A seeding machine provided with a guide plate (12) for guiding the seeds swept out by (1) to the seed feeding position from the hopper (3) without facing the peripheral surface of the sowing roll 1.