JP2729436B2 - Sorting equipment for vertical grain sorters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical cereal sorter capable of finely selecting cereal grains while lifting the grain between them by means of a frying cylinder in an upright reticulated sorting cylinder.

[0002]

2. Description of the Related Art Conventionally, in a vertical grain sorter, a mesh sorter tube erected in a sorter room is provided with a hulling tube having a helix on the outer periphery and a grain can be carefully selected while being lifted between them. As disclosed in Japanese Patent Application Laid-Open No. Hei 2-273117, the net-like sorting cylinder and the frying cylinder are configured to be mutually inverted.

[0003]

However, when the reticulated sorting cylinder and the fried grain reversing each other in this manner, the passing degree of small foreign particles passing through the reticulating sorting cylinder increases, especially as the number of grains increases. There is a problem that the sorting effect is deteriorated and deteriorated.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve such a problem and to further enhance the sorting effect. together to configure the rotary drive freely, the fried
The rotation speed of the mesh sorting cylinder is reduced at a low speed with respect to the rotation speed of the grain cylinder.
The helix of the fried cylinder has an inner circumferential surface
It is formed on the step surface lower than the peripheral side
A plurality of notches are equally arranged in the inner circumferential direction.
Is inclined with the front end in the rotation direction and the front end in the rotation direction
To form standing blades that are lower than the inner surface
The inner peripheral surface is provided on the upper surface of the outer peripheral surface and the inner peripheral surface.
At a predetermined interval so that one of the
In this case, projections are formed respectively .

[0005]

Therefore, in a state in which the kernel is lifted by a fryer having one spiral of a small pitch, the mesh sorter on the outer periphery rotates in the same direction at a lower rotation speed than the fryer , and A state in which grains are lifted by a spiral
To raise a part of the grain near the inner peripheral side of the mesh sorting cylinder
Stir with the blades or press on the inner peripheral side of
To increase the sorting effect and to make the standing blades
The projections on the top of the skin can stir the grains effectively,
A part of the grain passing over the upright blade is cut out from each notch
While dropping downward, further agitation action is given.
Is it can be accurately sorted.

[0006]

FIG. 1 is a cross-sectional view schematically showing a vertical grain sorter, in which a fryer cylinder 3 is erected inside a net-like sorting cylinder 1 erected in a sorting chamber A and communicates with a supply hopper 7. The grain receiving cylinder 8 is provided with a lower part 3a of the above-mentioned fluffing cylinder 3 and a grain guiding cylinder 1a which engages with a lower part of the mesh-like sorting cylinder 1, and an upper part of the grain guiding cylinder 1a. Conventionally, a flange portion 12 having each of the protruding blades 11 is fixedly provided on the outer periphery, and a second port 13 is provided in communication with a lower side of the sorting chamber A which is an outer direction of the protruding blades 11. Although the structure is the same as the shape structure, the reticulated sorting cylinder 1 and the fried grain cylinder 3 are the same by the motor 16 because the rotation speed of the reticulated sorting cylinder 1 is 1/10 or less of the rotating speed of the fried grain cylinder 3 And a plurality of good rice scraping blades 17 are arranged on the outer peripheral surface on the upper end side of the net-like sorting cylinder 1.

[0007] The spiral 2 of the above-mentioned fried grain cylinder 3 is formed in a single-strip shape having a small pitch within a range of a length L corresponding to the above-mentioned net-shaped sorting cylinder 1, and its outer peripheral surface 2a has an inner peripheral surface. 2
b, so as to have a lower step surface, and the outer peripheral surface 2
In one circumferential range of a, notches 4 having a circumferential length M of 30 mm are formed at three equally spaced positions as shown in FIG. As shown in FIG. 8, the leading ends are inclined rearward in the direction of rotation and are inclined at an angle θ of 20 degrees, and are formed with rising blades 5 having a height H of 4 mm lower than the inner peripheral side surface 2 b and 4 mm, respectively. On the upper surfaces of the outer peripheral surface 2a and the inner peripheral surface 2b, protrusions 6 are formed at predetermined intervals so that one of the inner peripheral surfaces 2b is located above the notch 4. And three notches 4 on one round
Are formed so as to be aligned with each other in the vertical direction, and two straight spirals 2c having a large pitch are formed on the outer peripheral surface of the lower part 3a of the fried kernel 3, and a spiral 2d having no projection is formed on the upper part. Form and configure.

In the outer peripheral surface of the lower part of the grain guiding cylinder 1a, horizontally elongated grain guiding ports 9 are formed at four equally spaced positions, and a space between each grain guiding port 9 and the flange 12 is formed. On the outer peripheral surface of the grain guiding cylinder 1a, there are provided guiding blades 10 that are adjacent to each other and that are inclined to the front and rear in the rotating direction at a small interval. Three guide blades 10 on the edge
Are configured so that the lower end portions of them are close to each other.

Therefore, the net-shaped sorting cylinder 1 and the grain guiding cylinder 1a rotate in the same direction as the fry cylinder 3 as shown by the arrow A at a rotation speed of 1/10 or less of the rotation speed of the fry cylinder 3. That is, when the grain is supplied from the supply hopper 7 into the grain receiving cylinder 8, the guiding blades 10 on the outer periphery of the grain guiding cylinder 1 a are moved to the grain receiving cylinder 8.
While the grains in the inside are pushed down one after another, and forcibly guided to the respective grain guiding ports 9 in the lower part,
In the state where the kernels can be effectively fed and supplied to the outer peripheral side of the lower part 3a of the frying cylinder rotating in the same direction, and then the kernels are lifted by the spiral 2 inherited from the spiral 2c, the mesh of the outer periphery is formed. Since the sorting cylinder 1 is rotating in the same direction at a rotation speed of 1/10 or less, which is slower than that of the frying cylinder 3, small waste rice is smoothly extruded from the mesh of the mesh sorting cylinder 1 without resistance. As a result, it can be sorted with high accuracy. In this case, in the state where the kernels are lifted by the spiral 2, a part of the kernels on the inner peripheral surface side of the reticulated sorting cylinder 1 is agitated by the standing blades 5 or the inner peripheral surface of the reticulated sorting cylinder 1. In addition to increasing the sorting effect by pressing against the side, the grains can be effectively stirred by the standing blades 5 and the projections 6 on the upper surface of the spiral, and a part of the grains passing on the standing blades 5 While falling below the notch 4, a further agitation action can be given to perform effective sorting, and the waste rice that has been sorted and falls in the sorting chamber A is discharged from the second port 13.

FIG. 9 is a graph showing a comparison test between the above-mentioned embodiment and the conventional example. In the embodiment of the present invention, the frying cylinder 3 and the net-like sorting cylinder 1 are rotated in the same direction at 500 rpm and 30 rpm, and In the example, the test was conducted while reversing the conventional frying cylinder and the reticulating sorting cylinder to each other, and even if the hourly effect of the grain was increased, in the embodiment of the present invention, the second sorting of the scrap rice was performed. The rate (the ratio of the amount of scrap rice in the second mouth 13 to the sum of the amount of scrap rice in the storage tank 15 and the amount of scrap rice coming out of the second mouth 13) is good, but is worse in the conventional example. These results demonstrate that the effect of the present invention is remarkable.

[0011]

As described above, according to the present invention, in a state where the kernels are lifted by the fryer cylinder 3 having the helix 2, the net-shaped sorting cylinder 1 on the outer periphery thereof is rotated in the same direction at a lower rotational speed than the fryer cylinder 3 in particular. , So that small foreign particles can be pushed out smoothly from the mesh of the net-like sorting cylinder 1 without being braked, and can be sorted with high accuracy. As a result, it has the feature that the selectivity can be further improved compared to the conventional type and can be suitably implemented.

[Brief description of the drawings]

FIG. 1 is a sectional view schematically showing a main part of an embodiment of the present invention.

FIG. 2 is a side view schematically showing a fried grain cylinder.

FIG. 3 is an enlarged sectional view showing a part of FIG. 1;

FIG. 4 is a side view showing a grain guiding cylinder.

FIG. 5 is a side view showing a part of a spiral.

FIG. 6 is a plan view showing a part of a spiral.

FIG. 7 is an enlarged side view of a part of FIG. 5;

FIG. 8 is a perspective view showing a part of FIG. 6;

FIG. 9 is a graph showing the results of a comparative test with a conventional example.

[Explanation of symbols]

 A Sorting room 2 Spiral 3 Frying tube

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshiyuki Abe 4290 Fujioka, Fujioka-cho, Shimotsuga-gun, Tochigi Prefecture Tiger Kawashima Co., Ltd. (56) References 125476 (JP, A)

Claims (1)

(57) [Claims] 1. A vertical cereal sorter in which a reticulated sorter tube 1 provided in a sorter room A is provided with a frying tube 3 having a helix 2 on its outer periphery and cereals can be finely selected while being lifted between them. in machine, the mesh screening cylinder 1 and AgeKoku tube 3 with a configuration freely rotated in the same direction, the rotational speed of the AgeKoku tube 3
So that the rotation speed of the net-like sorting cylinder 1 is reduced at a low speed.
The spiral 2 of the above-mentioned fryer 3 has an outer peripheral side surface 2a having an inner peripheral side periphery.
The outer peripheral side peripheral surface is formed on a stepped surface lower than the surface 2b.
A plurality of cutouts 4 are equally arranged in the inner circumferential direction of 2a, and the cutouts 4 have a front end in the rotational direction and a forward end in the rotational direction.
And has a height lower than the inner peripheral side inner surface 2b.
The upright blade 5 is formed, and the outer peripheral side peripheral surface 2a and the inner peripheral side
One of the inner peripheral side surfaces 2b is formed on the upper surface of the surface 2b by the notch.
4 at predetermined intervals so as to be located above
Sorting device of a vertical grain sorter, characterized in that the their respective formation.