JPH0335706A - Sowing machine for raising seedling - Google Patents

Abstract

PURPOSE:To uniformize the distribution of grown seedlings by putting nursery bed in a raising seedling box, transferring the box with a conveyor, sowing seeds on the bed with a sowing apparatus and detecting the distribution of the seeds by a seed-distribution detector. CONSTITUTION:Nursery bed 2 is put into a raising seedling box 1 having a number of drain holes 1a using a bed-charging apparatus 7 and the box is transferred in the direction D by a conveyor 4. Seeds 3 are uniformly sowed on the nursery bed 2 of the transferred raising seedling box 1 with a sowing apparatus 5 and the distribution of the sowed seeds 3 is detected by a seed- distribution detector 6. The unevenness of sowed seeds and the uneven distribution of grown seedlings are prevented and the operation efficiency can be improved by this process.

Description

[Detailed Description of the Invention] [Field of Application of M-Rakudo] This invention relates to an MS machine for seedling-raising that sows seeds of plants such as rice and vegetables in the seedbed of a seedling-raising box transferred to a conveyor.

[Prior Art] Conventionally, when sowing seeds in a nursery using a seedling seeding seeder,
The sowing distribution, that is, the amount and variation of sown seeds, was detected by direct observation by the person working with the sowing machine. This allows them to judge the distribution of seeds sown in the nursery, adjust the amount of sowing, and deal with seedlings where uneven seeding occurs.

[Problems to be solved by the invention] Direct observation by a person who conventionally checks the sowing distribution 1ii
If you use UIS, if the seeding device becomes clogged and the amount of seeding suddenly changes or uneven seeding occurs, you may be doing other work and not notice it. As a result, there is a problem in that seedling boxes with extremely dense or sparsely grown seedlings are created, and seedlings that are unevenly grown with large variations in density within a single seedling growing box. In addition, if the seedling raising boxes in which the seeds have been sown are constantly checked one by one to ensure that there are no abnormalities in the sowing distribution to avoid such problems, other work will be hindered.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a conveyor 4.
A seedling distribution detecting device 6 that detects the distribution of the seeds 3 sown in the seedling box 1 is attached to a seedling seeding sowing machine equipped with a seeding device 5 for sowing seeds 3 in the seedbed 2 in the seedling box 1 transferred to the seedling box 1. This is a seedling-raising seeding machine characterized by being equipped with a.

[Effects of the Invention] By providing the sowing distribution detection device 6 that detects the distribution of the seeds 3 sown in the seedling nursery box l by the sowing device 5, the detection device 6 constantly detects the sowing distribution. It is no longer possible to overlook a seedling raising box 1 in which an abnormality has occurred in the sowing distribution, and it is possible to prevent seedlings having uneven density from growing. Also.

The person working with the sowing/inserting machine no longer needs to constantly check the sowing distribution in the seedbed 2 in the seedling v41, improving work efficiency.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

1 is a seedling nursery box made of synthetic resin with many drainage holes at the bottom.
A is provided. The seedling raising box 1 is filled with a seedling bed 2, which is soil mixed with fertilizer and the like for raising seedlings. Seeds 3 of rice, vegetables, etc. to be grown are placed on top of it.

The seedling raising box 1 is first filled with a seedling bed 2 using a bed soil filling device 7. The seedling box l is then sent in the D direction by the conveyor 4.

Seeds 3 are uniformly sown by this seeding device 5 on the seedbed 2 of the transferred seedling raising box 1. After that, irrigation equipment 8
and covered with soil using a soil covering device 10. Each device 7.5.8.10 is installed on two conveyor frames 23.23 supported by support legs 24 at intervals slightly wider than the width of the seedling box in the transverse direction. There is. Between the conveyor frames 23 and 23, there is provided a shaft 22 that is transmitted and rotated by an electric motor.
. . . is provided with a roller 2o . ...is configured.

The seeding device 5 includes a hopper 11 as shown in FIG.
The seedling roll 12 is rotated to let out the seeds 3 stored therein, and the seedlings are sown onto the seedling bed 2 in the seedling raising box 1 which has been transferred to the lower side. Further, the seeding device frame 14 is fixed so as to straddle the conveyor frame 23, so that the seedling growing boxes 1 transferred by the conveyor 4 can pass therethrough. The seeding roll 12
A recess 12a for holding the miko 3 in the hopper 11 is uniformly provided over the entire circumference of the roll.

A certain number of seeds 3 are held in the recess 12a.

It is fed out from the hopper 11 by the rotation of the seeding roll 12,
It falls onto the seedling bed 2, but it does not fall here and reaches the recess 12a.
The seeds 3 that are caught and held by the brush 13
scraped out by. This eliminates the seed clogging in the recess 12a.

As shown in FIG. 4, the irrigation device 8 has sprinkler pipes 15 installed on the left and right in the direction of movement, and the water supplied from the water supply pipe F is opened parallel to the axial direction of the sprinkler pipes 15. The liquid is poured downward in an M-shape from the slit-shaped vertical hole 15a.

As a result, the seedling bed 2 of the seedling raising box 1 that has been transferred to the lower side is irrigated. Conventionally, the sprinkler pipe 15 is provided with round holes or oval holes at predetermined intervals.

High pressure water was gushing out from the hole. Therefore, if the water pressure is too strong, the sowing distribution of the sown seeds 3 will be disturbed, and the irrigation water will be scattered around, worsening the working environment. However, this hole is a slit-shaped vertically long hole 1.
5a, low water pressure is required and water is supplied to the seedbed 2'' in a laminar stream, so the above-mentioned disadvantages are solved. In addition, 16 is a flow meter of the supply water, 18 is an on/off valve, and 9 is a flow meter for supply water.
is the cover.

Reference numeral 6 denotes a sowing distribution detecting device that detects the distribution of the seeds 3 on the seedbed 2 sown on the sowing roll 2. This detection device 6 is provided with a light emitting section that irradiates specific light onto the 2 sides of the seedbed, and a light receiving section that receives the light that hits the detection target and is reflected. The target that is irradiated with the light emitted from the light emitting part is the seedbed 2.
Seeds 3 are sown on the bed. The reflectance of Miko 3 to the irradiated light is significantly higher than that of the soil in nursery bed 2, and the detection sensitivity is set appropriately so that the reflected light can be detected depending on the presence or absence of seeds 3 on nursery bed 2 by utilizing the difference in reflectance. It is set. Therefore, whether or not the reflected light is detected is input and processed as a signal indicating the presence or absence of seeds on the two seedbeds, that is, the distribution. The seedling nursery box is transferred by the conveyor 4, the position to be detected is shifted, and the sowing distribution in the transfer direction of the seedbed 2 is detected. Seedbed 2 in the left and right direction with respect to the transport direction
The sowing distribution on the surface is determined by detecting the entire surface of the seedling bed 2 in the seedling nursery box 1 by installing a large number of light emitting parts in the irradiation area and a large number of paired light receiving parts in the left and right directions so as not to interfere with each other. The seeding distribution will be detected.

By this sowing distribution detection device 6, the seeding distribution detection device 6 successively performs
Seeds 3, dirt, etc. may come into the inside of the hopper 11 or the recess 12a of the seeding roll 12, where the sowing distribution of the seedling raising box 1 is detected.

When the sowing position of the seeds 3 is biased due to unexpected vibrations or inclinations, and the sowing distribution is disturbed and there are large areas where the seeds 3 are not sown, the sowing distribution device 6 monitors the sowing position. Unevenness is reliably detected. Then, as shown in FIG. 4, in response to this detection, the uneven seeding box removing device 9 uses a piston 25 to push out and move the seedling box l in which uneven seeding has been detected to the table 33.゛The piston 25 is fixed on a support stand 29 fixed to one side of a frame 30.30 on which a roller 31 is installed, and the tip of the rod 27 of the piston 25 is made to extrude the seedling box l in parallel. A bar 28 is provided. Further, the piston 25 is of an air type, and when compressed air flows into and out of the cylinder portion through the tube 26, the rod 27 protrudes.
He is set to retire. The table 33 includes a roller 3 that rotates in the extrusion direction P of the piston rod 27.
2 is rotatably provided, and by configuring it to be more than 0 to smooth the movement of the seedling raising box, it is possible to avoid overlooking the seedling raising box 1 that has caused an abnormality in the sowing distribution, and to prevent the seedling raising box 1 that has an abnormal seeding distribution from being overlooked. There is no need to grow seedlings.

In addition, the person who operates and works on the seeding machine must
There is no longer a need to constantly check the sowing distribution, improving work efficiency.

Further, the sowing distribution detection value by the sowing distribution detection device 6 is converted into a sowing amount and displayed on the display section 34a of the sowing amount adjusting device 34. The seeding amount adjustment knob 34b can be used to adjust the seeding amount to a desired amount while checking the actual seeding amount detection value.

By turning the seeding amount adjustment knob 34b, the rotation speed of the seeding roll 12 is adjusted accordingly.

By the way, when the seeding machine is restarted after an emergency stop or an abnormal stop, the conveyor 4 is once driven in the opposite direction by a predetermined distance.

This occurs when the seeding machine is brought to an emergency stop by the person performing the operation 1 or by the set control program.

When the seedling box 1 is being sown by the sowing device 5, a streak-like non-seeding area will appear in the left and right direction. This occurs because the seedling box 1 above moves inertia and does not stop at the same time.

Therefore, return the seedling nursery box l by the amount of the non-sowed area that has arisen,
It was designed so that sowing starts again from the boundary where sowing was done until it stopped. This prevents uneven seeding from occurring when the seeding machine restarts after an emergency stop or abnormal stop.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a cross-sectional side view of the main part, Fig. 4 is a cross-sectional front view of the main part, and Fig. 5 is a cross-sectional front view of the main part. The figure is a plan view of the main parts. In the figure, reference numerals 1 indicate a nursery box, 2 indicates a nursery bed, 3 indicates seeds, 4 indicates a conveyor, 5 indicates a seeding device, and 6 indicates a seeding distribution detection device.

Claims (1)

[Claims] A seedling distribution sowing machine equipped with a seeding device 5 for sowing seeds 3 in a seedbed 2 in a seedling box 1 transferred to a conveyor 4 detects the distribution of seeds 3 sown in the seedling box 1. A seedling-raising seeding machine characterized by being provided with a device 6.