JPS6027488B2 - Seeding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seeding machine for pongee grain seeds, which is capable of continuously sowing fine grain seeds or flat seeds in a prescribed amount (approximately 1 to 5 grains) by spot sowing.

Conventional seeding machines have a recessed part on the outer periphery of the dispensing roll, and sow seeds by sequentially ejecting seeds corresponding to the volume of the recessed part. 5
It is very difficult to sow seeds in small quantities, such as grain size, and the sowing accuracy is poor, making it unsuitable for vegetable cultivation.

The present invention solves these conventional problems, and its features include a seed hopper for storing seeds to which magnetic powder is attached, and a rotatable seed drop opening of the seed hopper. A recessed portion into which a specified amount of seeds can enter is provided on the outer periphery of the ejecting roll,
A magnet for attracting and holding the seeds that have entered the recess is provided on the bottom side of the recess, and in synchronization with the rotation of the delivery roll,
The present invention is characterized in that means is provided for operating the magnet so as to release the magnet from attracting the seeds at the sowing position.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
In the drawings to FIG. 3, reference numeral 1 denotes a machine frame, into which a bran extraction shaft 3 is rotatably inserted and supported via a bearing 2, and one end of the extraction shaft 3 has a grounding mechanism (a tractor-pulled type). A pulley (not shown) is provided which is interlocked with a drive source such as a case] or an electric motor [in a fixed type case]. A seed hopper 4 is used to store seeds 5 to which magnetic powder such as iron oxide is attached, and is mounted on the machine frame 1 via a mounting plate 6.

A side plate 7 forms a seed drop opening 8 at the lower end of the seed hopper 4.

Reference numeral 9 denotes a delivery roll provided corresponding to the seed drop port 8 of the seed hopper 4, and a rectangular mounting base 1 is mounted on the roll, and the mounting base 10 is fixed to the delivery shaft 3 by a pin 11. .

Reference numeral 12 denotes holes, and two holes are provided in the traversing roll 9 in the folding direction, and an extrusion member 14 urged outward by a spring 13 is slidably inserted into each hole 12.

Note that this extrusion member 14 is made of a magnetic material. 15
is an electromagnet, which is provided on the mounting base 10 side corresponding to each extrusion member, and when this electromagnet 15 is excited and magnetized, it magnetizes and attracts the extrusion part village 14.

Reference numerals 16 and 17 are contact plates, which are attached between the feed roll 9 and the mounting base 10 to also fix the same, and which are also attached to the electromagnet 15.
are connected to each other.

Contactors 18 and 19 that come into sliding contact with the contact plates 16 and 17 are fixed to the machine frame 1 side. The relative relationship between the contact plates 16, 17 and the contacts 18, 19 is set so that they are in contact while the hole 12 of the rice bran roll 9 rotates from the seed receiving position A to the sowing position B, that is, within the range of the angle Q. These contact plates 16, 17 and contacts 18, 19 connect the electromagnet 15.
A means for operating the is configured. There are two adjustable seed brushes, 21 and 22 are guide plates, and 23 is an elastic body such as felt, which are used to prevent the seeds 5 from being crushed.

Next, the action will be explained.

When sowing, seeds 5 to which magnetic powder such as iron oxide is attached are first put into the seed hopper 4, and then the delivery roll 9 is rotated by the delivery shaft 3 at a predetermined speed in the a-disappearance direction. let When the hole 1'2 reaches the seed receiving position A as shown in FIG. 2 due to the rotation of the feed roll 9, the contacts 18,1
9 contacts the contact plates 16 and 17, the electromagnet 15 is energized and magnetized, attracting the extrusion member 14 against the spring 13, and magnetizing the extrusion member 14 to become a magnet. When the extrusion member 14 is attracted, a concave part for seeds is formed at the tip of the hole 12, and since the seeds 5 in the seed hopper 4 have magnetic powder attached, they enter the hole 12 and are attracted by the extrusion member 14. be done. At this time, the seeds 5 are also adsorbed to the green part around the holes 12, but the seeds 5 outside these holes 12 are removed when they reach the seed brush 20 by the rotation of the delivery roll 9, and therefore the seeds 5 is the specified amount (1 to 5
Only particles (the size of grains) are fed out one by one while remaining adsorbed. When the hole 12 on the side that has attracted the seeds 5 rotates until it reaches the sowing position B, the contacts 18 and 19 are removed from the contact plates 16 and 17, and the power to the electromagnet 15 is cut off. The suction of the part 14 and the seeds 5 is released, and the pushing member 14 slides outward by the spring 13, forcing the seeds 5 in the hole 12 to fall at the sowing position B, and this series of operations This is carried out continuously in synchronization with the rotation of the delivery roll 9, so that the seeds 5 can be sown continuously. Note that the attraction force by the electromagnet 15 is determined by the current value, the volume of the hole 12, etc.

In the above embodiment, in addition to the electromagnet 15, a forced extrusion mechanism consisting of the extrusion member 14 and the spring 13 was provided, but as shown in FIG. good.

Further, it is also possible to use a permanent magnet 24 in place of the electromagnet 15, and in that case, the structure may be configured as shown in FIGS. 5 and 6.

That is, a recessed portion 25 is formed on the outer periphery of the delivery roll 9, a magnet accommodating portion 26 is formed on the inner periphery facing the recessed portion 25, and a V-shaped spring 27 is provided in the magnet accommodating portion 26. and a permanent magnet 24, and a cam 29 is supported from the bearing 31 side via a fixing member 28, and the permanent magnet 24 is configured to slide on the outer circumferential surface of the cam 29. The magnet 24 may be moved outward, otherwise it may be moved inward. As described above, in the present invention, seeds with magnetic powder attached thereto are attracted by a magnet and held in a predetermined amount in the recessed part of the delivery roll, and the attraction is released at the sowing position to sow the seeds. , pongee seeds, flat-shaped seeds, etc., can be continuously sown in a specified amount by spot sowing, and it is extremely effective for sowing work such as for vegetable cultivation.

In addition, since the attraction force of the magnet is used, it is difficult for stock shortages to occur. Furthermore, a magnet is provided on the bottom side of the recess to attract and hold the seeds in the recess, and the magnet is operated at the sowing position in synchronization with the rotation of the feed roll to cause the magnet to attract the seeds. Since it is released, there is no damage to the seeds during line drawing, and there is no problem such as poor germination due to damage to the seeds.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
3 is a sectional view taken along the Y-Y line in FIG. 1, FIG. 4 is a sectional view showing another embodiment of the present invention, and FIG. 5 is a sectional view showing another embodiment of the present invention. A sectional view showing an example, FIG. 6 is the Z of FIG.
- It is a sectional view taken on the Z line. 3...Line output shaft, 4...Seed hopper, 5.
... Seeds, 8 ... Seed drop opening, 9 ...
... Dispense roll, 12... Hole, 14...
Extrusion member, 15... Electromagnet, 16, 17...
...Contact plate, 18, 19...Contactor, 24.
·····permanent magnet. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A seed hopper that stores seeds to which magnetic powder is attached, and a feed roll that is rotatably provided at the seed drop opening of the seed hopper, and a recessed portion on the outer periphery of the feed roll into which a specified amount of seeds can enter. A magnet for attracting and holding the seeds that have entered the recessed portion is provided at the bottom side of the recessed portion, and the attraction of the seeds by the magnet by the magnet is released at the sowing position in synchronization with the rotation of the feed roll. A seeding machine characterized by being provided with means for operating the magnet.