JP2545526B2 - Seeding roll in seeder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sowing roll used in a seeding machine for raising seedlings and the like.

(Prior Art) A seeding machine for raising seedlings shown in FIG. 6 is conventionally known. In this seeder, a hopper 27 and a seeding roll 28 are arranged above the transport conveyor 2 of the seedling raising box 1, and a rotating brush 30 for adjusting the amount of seeds to enter the seed receiving section 29 is provided above the seeding roll 28. , Between the lower opening 31 of the hopper 27 and the sowing roll 28, a guide part 32 for guiding the seed to the seed receiving part 29 is formed, and by the rotation of the sowing roll 28, a seedling raising box during transfer of the seed. The seed receiving part 29 is formed in a groove shape parallel to the roll axis (see FIG. 7).

(Problems to be Solved by the Invention) In the above conventional technique, the seed receiving portion 29 of the sowing roll 28 is used.
Since the shape of the groove is grooved, in the case of seeds of spherical shape or similar shape, it does not affect the adjustment of the seed amount by the rotating brush 30, but the seeds of oval shape, oval shape or elongated shape. Then, depending on the posture of entering the seed receiver 29,
This affects the adjustment of the seed amount by the rotating brush 30 and cannot secure the optimum sowing amount. That is, it is ideal that the seeds enter in parallel in the groove-shaped seed receiving portion 29 in the lateral direction,
If the postures are different because the seeds enter the seed receiving portion 29 in the vertical direction, the amount of seeds becomes uneven and the rotating brush 30
There is a problem that the seeds are excessively pushed in or are vertically inserted, and the seeds are discharged from the seed receiving portion 29, resulting in further variation in the seed amount. Further, when the seeds fall from the sowing rolls 28 onto the bed soil in the nursery box 1, if the seeds are in the vertical posture, the seeds are scattered at a high rate on the bed soil, and the occurrence of uneven sowing increases. , There is a problem of causing stockout.

(Means for Solving Problems) The present invention has been made to solve the above problems,
The specific structure of the problem solving means is that a seeding roll 28 is provided above the transporting conveyor 2 for transporting the seedling raising box 1 and rotatable around an axis line in a direction transverse to the seedling raising seedling conveying direction. 28A, a plurality of seed receiving portions 29 formed of grooves parallel to the roll axis are formed at intervals in the circumferential direction, and by rotating the seeding roll 28, the seed receiving part 28 drops from the hopper 27 located on the upper side of the seeding roll 28. The seeds S supplied are received by the seed receiving portion 29, and after the excess seeds S are scraped off by the rotating brush 30 which is in sliding contact with the sowing rolls 28, the seeds are dropped on the soil in the nursery box 1 and seeded in a line. In the seeding machine, a seed S having a width that is one with respect to the groove width of the seed receiving portion 29 and a seed S having a shape longer than the width is adopted. Seeding roll 28 outer peripheral surface 28A
Between the seed receiving parts 29 of the,
45 is formed, and the groove width of the recess 45 is set so that the longitudinal end of the seed S supplied in the vertical direction from the hopper 27 to the sowing roll 28 by the recess 45 is hooked to be in the horizontal posture. It is characterized in that the seed S is formed in such a size that the longitudinal end portion of the seed S fits thereinto.

(Operation) The seeds supplied from the hopper 27 hit the rotating sowing rolls 28, and in particular, the elongated seeds supplied in the vertical direction are fitted in the recesses 45 at the longitudinal ends thereof. The rotation of the seeding roll 28 ensures that the seedling roll 28 is in a lateral shape, and the seeds are placed in the seed receiving part 29, and the various seeds are arranged side by side in the seed receiving part 29 in a horizontal posture. The seeds are properly adjusted so that the seeds are not forcedly pushed or removed, and the various seeds are fed out sideways into the bed soil in the moving seedling raising box 1 and arranged neatly.

(Example) Hereinafter, the Example of this invention is described in full detail based on drawing.

First, seeding equipment for raising seedlings to which the present invention is applied will be described with reference to FIG.

The seeding equipment is roughly classified into a conveyor 2 for placing and carrying the seedling raising box 1, a support stand 3 of the conveyer conveyor 2, a support stand 3 mounted on the support stand, and straddling a seedling raising box transfer passage of the conveyer conveyor 2. It is composed of a floor unit 4, a rotary brush unit 5, a watering unit 6, a seeding unit 7 and a soil cover unit 8.

The support base 3 includes a pair of left and right parallel frames 9,
It has a plurality of support legs 10.

The transfer conveyor 2 is provided between the pair of left and right frames 9,
A large number of roller shafts 11 and rollers pivotally supported at intervals.
12 and a sprocket 14 and a chain 15 for transmitting power from a motor 13 described later to all the rollers 12.

The floor earthmoving machine 4 is a belt conveyor parallel to the conveyor 2.
16 and a hopper 17 above the belt conveyor 16
The chain transmission means 18 receives power from the transport conveyor 2 and supplies the bed soil to the seedling raising box 1 in synchronism with its movement.

19 is a gate member, and the opening edge of the hopper 17 and the belt conveyor
The amount of floor soil to be supplied is adjusted by adjusting the size of the soil discharge port 20 formed between 16 and.

The rotary brush device 5 is arranged in front of the soil-raising machine 4 in the transfer direction of the nursery box and removes excess soil so that the upper surface of the floor soil put in the nursery box 1 is leveled to a predetermined amount. A rotating brush is attached to the support pair 21 provided on the frame 9 of the support base 3.
The quantity shaft end of 22 is mounted on the shaft, and the rotary brush 22 is configured such that power is transmitted from the roller shaft 11 by the chain transmission means 23 and the like.

The irrigation device 6 is provided below the water supply pipe 24 communicating with the water pipe,
The water spray plate 25 is pivotally supported so that a predetermined amount of water is sprayed on the floor in the nursery box 1 substantially uniformly.

The seeder 7 is mainly pivotally supported between plate-like support frames 26 fixed to the frame 9 on both left and right sides, a hopper 27 detachably arranged on the support frame 26, and the support frame 26. A sowing roll 28 and a rotating brush 30 that adjusts the amount of seed that has entered the groove-shaped seed receiving portion 29 of the sowing roll 28, and a seed sowing roll that is arranged between the sowing roll 28 of the lower opening 31 of the hopper 27. It is composed of a guide portion 32 which guides to 28, a motor 13 and a transmission device 33.

The soil cover machine 8 has the same structure as the floor soil machine 4, drives the belt conveyor 35 from the transport conveyor 2 through the chain transmission means 34, and removes the soil in the hopper 36 through the soil outlet 37 to the seeds in the nursery box 1. It is configured to be sprayed on and covered with soil.

The drive gear is attached to the reduction gear output shaft 38 of the motor 13.
39 is wedged, and the transmission gear 40 of the transmission mechanism 33 is attached to the gear 39.
Are engaged with each other, and power is transmitted from the sprocket 42 wedged to the rotary shaft 41 of the transmission gear 40 to the roller shaft 11 of the conveyor 2 via the chain transmission means 43.

The seedling raising seeding equipment described above has substantially the same configuration as the conventional one, but the seeding roll 28 has the groove-shaped seed receiving portion 29 on the roll outer peripheral surface 28A as shown in FIGS. , The roll outer peripheral surface 28A between the seed receiving portion 29 is provided in parallel with the roll axis 44 at a large number of rows, the depth and width of the seed receiving portion 29 is parallel to that of the seed receiving portion 29. A much smaller groove-shaped recess 45 is formed. Further, in the sowing roll 28, a large number of seed scraper grooves 46 in the circumferential direction are provided at equal intervals between the seed receiving portions 29, and a comb-shaped scraper 47 is inserted into the seed scraper groove 46, and the seed feeding position. In, the seeds in the seed receiving portion 29 are all fed completely.

The recess 45 has a hopper 27 as shown in FIG.
The seed S, which has been slid on the guide path 32 through the lower opening 31 and supplied onto the sowing roll 28, acts so as to enter the seed receiving portion 29 in a laterally rolled sideways state caught by the recess 45. Therefore,
Like a conventional sowing roll, the seeds that are in contact with the smooth outer peripheral surface are in the vertical posture, and do not slide in the outer peripheral surface of the roll and enter the seed receiving portion 29 as it is, and all the seeds. The S are arranged side by side in the seed receiving portion 29 in a horizontal position.
In this way, when the seed S enters the seed receiving portion 29 in the sideways posture, the brush bristles of the rotary brush 30 come into sliding contact with each other, but the forced pushing by the rotary brush 30 does not occur, and the extra seed is returned. The set seed amount can be adjusted accurately.

Also, when the seeds are unrolled from the sowing roll 28, the seeds are in the sideways posture, so that when the seeds fall on the bed soil of the nursery box 1, they are not scattered and are juxtaposed in an orderly manner.

In the above embodiment, one groove-shaped recess 45 is provided between the seed receiving portions 29 of the sowing roll 28, but two or more grooves may be provided depending on the size and shape of the seed. further,
It is preferable that the shape, width, depth, and other dimensions of the recess 45 are appropriately changed depending on the type, shape, and size of the seed.
Also, regarding the shape and size of the seed receiving portion 29, similarly to the concave portion 45, an optimum design should be made according to the type, shape, and size of the seed.

(Effect of the invention) The seeding roll 28 according to the present invention is provided with a seeding roll 28 rotatable above the conveyor 2 that conveys the seedling raising box 1 and rotatable about an axis extending in the direction transverse to the seedling raising box conveying direction. On the outer peripheral surface 28A, a large number of seed receiving portions 29 formed of grooves parallel to the roll axis are formed at intervals in the circumferential direction, and by rotating the seeding roll 28, the hopper located on the upper side of the seeding roll 28 is positioned. The seeds S dropped and supplied from 27 are received by the seed receiving portion 29, and the excess seeds S are scraped off by the rotating brush 30 slidingly contacting the seeding roll 28, and then dropped onto the bed soil in the seedling raising box 1 to form a line. A seeding machine adapted to be sown in a uniform manner, wherein a seed S having a width that fits into the groove width of the seed receiving portion 29 and a seed S having a shape longer than the width is adopted. In, between the seed receiving portion 29 of the outer peripheral surface 28A of the seeding roll 28, Recess 45 made parallel grooves child receiving 29
To form the groove width of the recess 45 so that the longitudinal end of the seed S, which is vertically supplied from the hopper 27 to the sowing roll 28 by the recess 45, is hooked to be in a horizontal posture, Since the seeds S are formed in such a size that the longitudinal end portions of the seeds S fit in, the long-length seeds S that are vertically supplied from the hopper 27 to the sowing rolls 28 have the longitudinal end portions. The seed S fits in the concave portion 45 and can be surely laid down sideways by rotating the seeding roll 28. The seed S enters the seed receiving part 29 in a sideways state, and is kept in the sideways posture in the seedling raising box 1 inside. The seeds S that can be laid out on the bed soil and enter the seed receiving portion 29 in the vertical direction as in the conventional case are removed from the seed receiving portion 29 by the rotating brush 30 to cause variations in the seeding state. There is no such thing as squeeze Can be reduced,
Moreover, since the seed S is reliably hooked, there is an effect that the risk of damaging the seed S is small.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a front view of a sowing roll, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is FIG. FIG. 4 is an enlarged view of part B of FIG. 4, FIG. 4 is a partial perspective view for explaining the action, and FIG.
FIG. 6 is an explanatory view of a conventional seeding machine, and FIG. 7 is a front view showing one of conventional seeding rolls. 1 ... Nursery box, 2 ... Conveyor, 28 ... Seeding roll, 28A ... Roll outer surface, 29 ... Seed receiving part, 45 ... Recessed part.

Claims (1)

(57) [Claims] 1. A seeding roll 28 is provided above a transporting conveyor 2 for transporting the seedling raising box 1 so as to be rotatable about an axis line transverse to the transporting direction of the seedling raising tray, and an outer peripheral surface 28A of the seeding roll 28 is provided.
In addition, a large number of seed receiving portions 29 formed of grooves parallel to the roll axis are formed at intervals in the circumferential direction, and by rotating the seeding roll 28, it is dropped and supplied from the hopper 27 located on the upper side of the seeding roll 28. The seeds S to be received are received by the seed receiving portion 29, and the excess seeds S are scraped off by the rotating brush 30 which is in sliding contact with the seeding roll 28, and then dropped onto the soil in the nursery box 1 and seeded in a line. In the seeding machine configured as described above, a seed S having a width that fits in the groove width of the seed receiving portion 29 and a seed S having a shape longer than the width is adopted. Between the seed receiving portion 29 of the surface 28A, to form a concave portion 45 consisting of a groove parallel to the seed receiving portion 29, the groove width of the concave portion 45, by the concave portion 45 from the hopper 27 to the sowing roll 28 is oriented vertically. In order to hook the longitudinal end portion of the seed S supplied by Seeding roll in sowing machine that features that are formed to a size that writing longitudinal end fits of the seed S.