JPS5854894Y2 - Seeding machine particle size extraction device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a particle sizing and extraction device for a seeding machine, and particularly to a particle sizing and extraction device for coated seeds.

Coated seeds have a surface layer containing fertilizer components that are effective for growth.
It is known as a coating formed on the entire surface of the seed, and has a uniform particle size, making it convenient for separating and extracting seeds for sowing.

In addition, this type of seeding machine is generally equipped with a grain sizer that rotates in conjunction with the movement of the machine, and the seed hopper's take-out port is placed in contact with this grain sizer, so that the seed hopper can be removed from the take-out hole formed in the grain sizer. A predetermined number of coated seeds are separated and taken out as the seeds rotate, but with this configuration, the number of seeds sown per time is limited, and the amount of seeds sown per time cannot be changed. In order to do this, there was an inconvenience that the grain sizer disk had to be replaced every time.

In view of this conventional situation, this invention forms large take-out trays for different numbers of grains within mutually different task surface ranges of the grain sizer disk, and changes the take-out opening of the seed hopper for each row of these. This allows the number of grains to be taken out to be changed.

Hereinafter, one embodiment of the particle sizing and extraction device according to this invention will be described in detail with reference to the accompanying drawings.

Figures 1 and 2 show the overall configuration of a seeding machine to which the particle sizing and extraction device according to this embodiment is applied. In each of these figures, 1 is the sowing machine body, and 2 is the front end side of the machine body. A drive wheel rotatably supported, 3 a roller rotatably supported on the rear end side of the fuselage, 4 a drive bundle protruding from the rear end of the fuselage, and 5 below the fuselage. A coulter 16 is suspended in a height-adjustable manner toward the coulter, and a soil cover plate 7 is disposed at the rear of the coulter.

As shown in FIGS. 3 and 4, the particle sizing device 7 has a disk housing 8 mounted above the coulter 5 and facing diagonally rearward on the machine body 1. A grain sizing disk 10 is provided whose lower surface is in contact with the housing surface and is rotatably supported on a rotating shaft 9, and this grain sizing disk 10 is rotatable in conjunction with the drive wheel 2 via an interlocking mechanism 11. A seeding chute 12 is extended from the lower surface of the disc housing 8 between the coulters 5.

Here, the grain sizing disk 10 has first particles located within mutually different task surface ranges, that is, within concentric ranges a and b of radii r1 and r2, and at predetermined pitch intervals within the outer range a. A second extraction hole 10b consisting of three holes is placed in the inner range.
A row is formed through each of these extraction holes 10.
Rows a and 10b are closed by the disk housing 8 surface on the lower surface side, and can open into the seeding chute 12 at the lower portion.

The seed hopper 13 that accommodates coated seeds is composed of a main body 14 having a large internal volume and a take-out portion 15 protruding forward on one side of the main body 14.
In the front lower surface 15a, which is a plane, an ejection port 15b, which is an arcuate elongated hole extending over a predetermined angular range θ, is opened from the lowest part within a concentric range a of the one radius r1. The inner edge of the outlet 15b is the lower surface 15a
The inner bottom surface of the main body portion 14 is also formed to have a gentle slope in order to easily guide the coated seeds contained therein to the lower part of the outlet 15b. .

Therefore, on both sides of the seed hopper 13, only one piece is attached.
6.16 is fixed, and this mounting piece 16° 16 is attached to a hopper support 17 with a flat surface of 1", through a long hole 16 in the longitudinal direction.
Attach with set screws 18 and 18 through a and 16a,
The hopper support part 17 also has long holes 17a, 17 in the left and right direction in the hopper link 19 installed in the body 1.
It is attached with set screws 20, 20 through the seed hopper 13, and by such supporting means, the lower surface 15a in front of the take-out portion of the seed hopper 13 is aligned such that the center of the arc of the take-out port 15b is the rotation center of the grain sizer disk 10. Set it to match.

Therefore, in the configuration of the embodiment described above, the particle sizer disk 1 is rotated in conjunction with the rotation of the drive wheel 2 as the machine body 1 advances
0 is rotated in the direction of the arrow, that is, in such a way that the surface of the isk is rubbed against the surface of the take-out port 15b from below to above. The coated seeds guided to the inner bottom flow as if being scraped up from below to above according to the surface of the dish, and at this time, the coated seeds flow through the take-out port 15b.
The first ejection hole 10a on the disk surface corresponding to
Each individual coated seed falls down and is divided into grains.

And since the lower surface side of the take-out hole 10a for these winter coats 1 is closed by the disk housing 8,
The fallen individual coated seeds are moved while being held in each take-out hole 10a, reach the sowing chute 12, and are successively sown.

Here, the sowing through the first row of take-out holes 101 is of course regulated by the form of the first take-out holes 10a, and in this case, the sowing is for one seed at a predetermined pitch interval.

Subsequently, if you want to change the sowing mode, first loosen the left and right fixing screws 20 and 20 holding the seed hopper 13, move the seed hopper 13 itself to the left, and take it out. After changing the outlet 15b of the section 15 from the concentric circle range a side of the grain sizer disk 10 to the b side, the same operation can be performed with the set screws 2G and 20 tightened again. A similar operation is performed in the second row of extraction holes 10b formed on the same side, and three seeds are sown at a predetermined pitch interval.

Note that when the seed hopper 13 is moved relative to the grain sizer disk 10, the degree of contact between the disk surface and the outlet surface is determined by the set screws 1B and 1B in the front and rear direction that similarly hold the seed hopper 13. In addition, in the above embodiment, two types of large sizes are taken out from the 10 sides of the grain sizer, but by using multiple rows for the same purpose, even more types of sowing patterns can be set. It is something that can be obtained.

As described in detail above, according to this invention, large sizes for taking out different numbers of particles are formed in different concentric circles on the disk surface on the grain sizer disk which is rotated in conjunction with the drive wheel. At the same time, the position of the outlet opening in the seed hopper can be changed to correspond to each large-size outlet, so it is possible to sow any number of seeds using one grain-sizing disk. , to change the number of seeds sown, simply open the seed hopper outlet to 1.
Since it is only necessary to move from one large-sized take-out disk to another large-sized take-out disk, the operation is extremely easy, unlike the case where a different size sizing disk is used.

[Brief explanation of drawings]

Fig. 1 is a side view of a seeding machine to which an embodiment of the particle size extractor according to the invention is applied, Fig. 2 is a plan view of the same as above, and Figs. 3 and 4 are enlarged views of the part of the particle size extractor of the above. They are a side view and a top view. 1... Seeding machine body, 2... Drive wheel, 1.
... Particle sizing and extraction device, 8... Disk housing, 1
0...Grain sizing disk, 10a and 10b...
1st and 2nd take-out large format, 11... interlocking mechanism, 1
2... Seeding shoot, 13... Seed hopper, 14
...Hopper body part, 15...Hopper take-out part,
15 a... Front lower surface, 15 b... Outlet, 1
6... Installation is one piece, 17... Hopper support, 19
...Hopper link.

Claims (1)

[Scope of utility model registration request] A grain sizer disk is provided which is rotatably supported in contact with the housing surface and rotated in conjunction with a drive wheel, and on the disk surface of this grain sizer disk, there are ejectors for different numbers of pieces in different concentric ranges. The seed hopper is formed with a large size, and the seed hopper has a take-out port having a size within each of the concentric circles, and the seed hopper is arranged such that the take-out port corresponds to each of the large take-out sizes. A particle sizing and extracting device for a seeding machine, characterized in that the arrangement position can be changed.