JPS6325948Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a device used for sowing rice seed clusters one by one at appropriate intervals vertically and horizontally in seedling boxes, etc. In this method, a group of recesses are formed at appropriate intervals in the roll rotation direction and the rotation axis direction so that each seed grain supplied from the hopper can be stored in a vertical position with the longitudinal direction along the roll rotation direction. This invention relates to a seeding device.

This type of conventional seeding device is configured to directly supply seed rice to the outer circumferential surface portion of the feed roll over an appropriate length range in the rotational direction by a simple flowing down action from the bottom of the hopper. In this case, since the postures and feeding intervals of the seed rice supplied to the recessed portions of the feed roll are inconsistent, supply leakage is likely to occur due to the seed rice being caught on the periphery of the recessed portions, and In some cases, a plurality of seeds are supplied to the container, and in that case, the seeds protrude from the recess, and all the seeds are leveled by a rotating brush or the like provided on the downstream side of the supply point. There were cases where the seed rice was scraped out and the seed rice was not supplied to the recesses, resulting in an overall disadvantage of increasing the incidence of missing plants.

The object of the present invention is to remedy the above-mentioned drawbacks with a simple modification.

A characteristic configuration of the seeding device of the present invention, which has been made to achieve such an object, is that, on the outer periphery of the feed roll, a seed supply portion from the hopper is provided with a seed seed supply portion around an axis that is parallel or approximately parallel to the feed roll. The present invention is provided with a rotary guide that corrects the seed rice into the above-mentioned vertical orientation by rotation.

In other words, even if the posture of the seed rice supplied from the hopper to the delivery roll side is inconsistent,
By means of the rotary guide provided in the seed supply section on the outer periphery of the delivery roll, it is possible to correct the seed rice to a vertical posture and supply interval suitable for smoothly flowing into the recess. Moreover, since this guide is of a rotating type, the seed rice does not get caught and stay on the guide itself, unlike in the case of a fixed type, and the above-mentioned posture correcting action can be carried out reliably and smoothly.

Therefore, it is possible to suppress as much as possible the rice seeds from getting caught on the periphery of the recess or the supply of a plurality of seeds to one recess, as in the conventional method.
As a whole, it was possible to carry out effective sowing with no or only a small number of missing plants.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in Figs. 1 to 4, a device C is installed for sowing rice seed clusters one by one at appropriate intervals vertically and horizontally into a seedling raising box B that is placed and transported on a belt conveyor A. The structure includes a bracket 1A erected from the frame 1 of the belt conveyor A.
, a pair of left and right support frames 3, 3 of the hopper 2
is attached to the outer circumferential surface of the feed roll 4, which is rotatably constructed across these support frames 3, 3.
There are five groups of recesses that can store seed rice grain by grain in a vertical position with its longitudinal direction along the roll rotation direction.
They are formed at appropriate intervals in the roll rotation direction and rotation axis direction, and at the lower part of the hopper 2, the seed rice in this hopper 2 is placed on the upper side of the payout roll 4 and on the outer periphery of the upward rotation path portion. A chute 6 is provided to guide the flow downward toward the surface portion.

Further, the support frames 3, 3 are provided with a fixed guide 7 for guiding the transfer of the seed rice along the outer peripheral surface of the roll on the side of the rotational transfer path of the seed rice by the feed roll 4, and a seed supply section on the entrance side of the fixed guide 7. is provided with a rotary guide 8 that corrects the seed rice into the vertical orientation by rotating around an axis parallel or substantially parallel to the feed roll 4.

The rotary guide 8 has an interval larger than the width of the seed rice and smaller than the vertical width at a location corresponding to between the recesses 5, 5, . . . adjacent in the direction of the rotation axis of the rotation shaft 8a. The annular protrusions 8b made of an elastic material such as rubber are arranged side by side with the protrusions 8b separated from each other.

Further, along the outer peripheral surface of the rotary guide 8,
A fixed guide plate 10 is provided to regulate the number of grains flowing into the space between the adjacent annular projections 8b.

Due to the presence of this rotary guide 8, even if the postures of the seed rice supplied downstream from the hopper 2 through the chute 6 are inconsistent, the group of seed rice is corrected into a vertical posture suitable for flowing into each recess 5. It is possible.

Each of the five groups of recesses of the feed roll 4 is curved so that it becomes shallower toward the lower side in the rotational direction when viewed in the direction of the rotation axis, and narrower in width toward the lower side in the rotational direction when viewed from above. organized into shapes.

Further, the support frames 3, 3 of the hopper 2, which are provided with the feed roll 4, the chute 6, and the rotary guide 8, are vertically swingable about the input axis P for the feed roll 4 and the rotary guide 8. The support frame 3,
A stopper 13 that restricts the downward movement of the side end of the feed roll 4 of 3 is pivotally mounted, and the entire hopper 2 swings upward as it comes into contact with the seedling box B. It is configured so that it can automatically move over the front and back walls of the vehicle.

FIG. 5 shows another embodiment, in which annular grooves 9 are formed between recesses 5, 5, which are adjacent in the direction of the rotational axis of the feed roll 4, and an annular projection 8b of the rotary guide 8 is formed. ... is fitted into the annular groove 9.

[Brief explanation of the drawing]

Figure 1 is an overall side view of the seeding device, Figures 2 and 3
The figures are a vertical side view and a cross-sectional plan view of the hopper feeding section, FIG. 4 is an enlarged sectional view of the main part, and FIG. 5 is an enlarged sectional view of the main part showing another embodiment. 2...Hopper, 4...Feeding roll, 5...
Recessed portion, 8... Rotary guide, 8a... Rotating shaft, 8
b... Annular process.

Claims (1)

[Claims for Utility Model Registration] A recess on the outer circumferential surface of the rotatable feed-out roll 4 in which the seed grains supplied from the hopper 2 can be stored in a vertical position with the longitudinal direction of each grain aligned with the roll rotation direction. In a seeding device in which five groups are formed at appropriate intervals in the roll rotation direction and the rotation axis direction, a seed seed supply section from the hopper 2 is provided at the outer periphery of the feed roll 4 in parallel with the feed roll 4. Alternatively, a seeding device is provided with a rotary guide 8 that corrects the seed rice to the above-mentioned vertical orientation by rotating around a substantially parallel axis. The rotary guide 8 for correcting the posture of rice seeds has a rotary shaft 8a and plate-shaped annular projections 8b arranged in parallel with each other at an interval larger than the width of the rice seeds and smaller than the vertical width thereof. A seeding device according to claim 1 of the utility model registration claim, comprising: