JPS5998779A - Vibration type grain classifying apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oscillating grain sorting device that mainly separates mixed grains of unhulled rice and brown rice into unhulled rice and brown rice, respectively.

Separating paddy rice and brown rice can be said to be extremely easy;
On the other hand, as is well known, the separation and sorting of unhulled rice and brown rice began with a simple sieve screen called Mangoku, and then progressed to a drag-type grain sorting device, and the latest model is a rotary barrel type grader structure. It becomes.

In any case, mixed grains exist, and the mixed grains are returned to the sorting section and separated by some method.

That is, the mixed grains supplied to the sorting device are divided into three types: (1)...unhulled rice (2)...brown rice (3)...mixed grains of unseparated paddy rice and brown rice. After being separated, the unhulled rice is returned to the hulling device for re-hulling, the brown rice is taken out as finished rice and is usually polished, and the mixed grains are returned to the feed section of the sorting device and subjected to the circulation sorting action again. Let it happen.

The conventionally known apparatus for sorting unhulled rice and brown rice is as described above, but at the time this invention was proposed, the defect was that the mixed grains were returned to the supply section of the sorting apparatus and recirculated and sorted as described above. No one pointed that out.

In other words, when separating unhulled rice and brown rice, mixed grains are always produced, and the mixed grains are normally returned to the supply section of the side separating device for circulation sorting. The prevailing idea was that it was possible to separate the mixed grains of unhulled rice and brown rice.

However, the present invention goes beyond conventional common sense and is a sorting device that does not allow the mixed grains to escape from the sorting plate, and as a result, countless various effects can be expected. This is what happened.

The reason why conventional sorting equipment always produces mixed grains when separating unhulled rice and brown rice is as follows.

Figures 1 to 3 show typical known examples that are most widely used at present. 1 is a sorting plate, and the surface of the sorting plate 1 has countless protrusions 2 formed on it, giving it a rough surface. It is formed. Grain 3 is placed on the rough surface of the sorting plate 1, and when the sorting plate 1 is moved diagonally back and forth in the direction of the arrow, the grain 3 receives the flow friction resistance of the projections 2 and gradually moves in the direction of A. It's shaking me.

In this case, the movement of the grain 3 in the A direction is directly caused by the protrusion 2 on the plate surface.
Only the grains 3 that are in contact with the grains 3 are moved. For example, with the grains 3 placed on the sorting plate 1 in one or six layers, the sorting plate l is moved as shown by the arrow. When the grains 3 are moved back and forth, only the grains 3 that sink to the lowest layer and directly contact the plate surface of the sorting plate 1 move in the direction of arrow A, and the grains 3 in Because they do not move, they can be sorted.

The sorting plate 1 is mounted on the underframe 4 as shown in FIG. 5.6 is a side rod, the lower end of the side rod 5.6 is mounted on the underframe 4 with an axis M7.8, and the upper end of the side rod 5.6 has a sorting plate 1.
is mounted on the shaft 9.10. 11 is an eccentric wheel, and 12 is a rod. When the eccentric wheel 11 rotates, the sorting plate 1 is reciprocated in the direction of the arrow through the rod 12. The sorting plate 1 is a rectangular shape with a downward pupil.
It is formed higher than 4 and is sloping. In addition, in the lateral direction with respect to the direction connecting the supply side 13 and the discharge side 14, one side is the swinging side 15 and the other side is the swinging side 16, and the swinging side 15 is lower than the lifting side 16 at an α angle. It is sloping. The reason why the sorting plate 1 is tilted at an angle of α is that the grain 3
When the sorting plate 1 is horizontal, a blank area A is formed on the swinging side 15 as shown in FIG. 2. However, when tilting the α angle as described above,
Blank area A will no longer occur.

A supply funnel 17 supplies the grains 3 from the corners of the supply side 13 and the shaking side 16. The discharge sides 14 are opened across the entire width, and an unhulled rice outlet 1 is provided on the swinging side 15 of the discharge side 14.
8, and a brown rice outlet 1 is provided on the shaking side 16 of the discharge side 14.
9, and a mixed grain outlet 20 is provided in the middle thereof.

In this known example, when the mixed grains are supplied onto the sorting plate 1 from the supply funnel 17 and the eccentric wheel 11 is rotated, the sorting plate l swings in the direction of the arrow opening, and the mixed grains on the sorting plate 1 are It is shaken, and as a secondary sorting, the brown rice with a heavy specific gravity sinks to the lower layer and is stirred up to the shaking upper side 16 as shown in El in FIG. The unhulled rice a, which has a light specific gravity, floats on top of the brown rice that has sunk to the lower layer, and then drifts down the rocking side 15 as shown in E2 and is taken out to the unhulled rice outlet 18.
In the middle, unseparated mixed grains like E3 are distributed and taken out to the mixed grain outlet 20.

As explained above, in the known example, when the unhulled rice a is taken out to the unhulled rice outlet 18 on the shaking lower side 15, and the brown rice is taken out to the brown rice outlet 19 on the shaking upper side 16, the mixed grains are not separated in the middle. are distributed as shown in E3 and taken out to the mixed grain outlet 20.

However, conventionally, the distribution of mixed grains that are not separated in the middle and being taken out to the mixed grain outlet 20 has not been treated as a defect.

However, after the mixed grains are taken out, it is necessary to return them to the sorting plate and re-sort them, so a mixed grain return device is always required.

If we were to create a sorting device that does not discharge mixed grains, it would not only be an extremely simple device since it would not require a device to return the mixed grains, but when incorporated into a hulling device,
The overall configuration can be significantly simplified.

Therefore, in the present invention, which has two features, an upright wall is formed at the front edge and the rear edge of the sorting plate, which has a rectangular downward pupil shape, and no mixed grain outlet is formed, but only one of the right and left edges is formed. A brown rice outlet is formed at one end and an unhulled rice outlet is formed at either end of the side, and a device for horizontally or inclined reciprocating swinging in the front and rear directions is attached to the sorting plate, and the plate surface of the sorting plate is It is divided into a front half and a rear half, and the front half has a group of inclined protrusions whose tips are inclined in the direction of the brown rice outlet, and the rear half has a group of inclined protrusions whose tips are inclined A'+ in the direction of the unhulled rice outlet. The structure of the swinging grain sorting device is such that the front half and the rear half are formed to have a rut area ratio of the front half to the rear half. That is.

The oscillating grain sorting device of the present invention will be explained with the help of a diagram.
4 and subsequent figures, reference numeral 21 denotes a sorting plate of the present invention, and the sorting plate 21 of the embodiment has a horizontal width 23 longer than a front-rear width 22, and an oblique pupil shape having a rectangular shape. A rising wall 24 is formed over the entire width at the front edge of the sorting plate 21, and similarly,
A rising wall 25 is also formed at the rear edge of the sorting plate 21 over the entire width. Therefore, on the front half of the sorting plate 21, a group of left inclined protrusions 26 are formed on the entire plate surface, and if the tip is on the left or right side, it faces leftward. On the plate surface, a group of right inclined protrusions 27 facing rightward on the right side among the left and right sides are formed over the entire plate surface. Said left inclined protrusion 2
6. As is clear from the cross-sectional view of FIG. 9, the right-slanted protrusion 27 is formed in a direction that moves the grain toward the upright wall 24 of the leading edge.

One front portion on the left side of the sorting plate 21 forms a brown rice outlet 28, and the rest is closed by a left wall 29. An unhulled rice outlet 30 is formed in the right rear part of the sorting plate 21, and 32, which is otherwise closed by the right wall 31, is a supply hopper, which is provided on the front side of the side where the unhulled rice outlet 3° is provided. The sorting plate 21 is pivoted to the upper end of a support rod 34, 34 that is pivoted to the support base 33. 35 is an eccentric wheel, and 36 is a rod, and the angle between the rod 36 and the support rod 34 is smaller than a right angle. Figure 5 shows the rod 36
According to this perspective view, the rod 36 has a shape that is wider toward the top.

37 is a screw for adjusting the front and back inclination of the sorting plate 21, into which a piece 38 is screwed, and the upper end of the arm 39 is fixed to the piece 38;
The lower end of the arm 39 is pivotally attached to a post 41 provided on a vertically movable rod 40, and the lower end of the rear support rod 34 is pivotally attached to the vertically movable lever 40.

Next, we will discuss the effect.

In the present invention, with the above configuration, when the eccentric wheel 35 is rotated, the angle between the rod 36 and the support rod 34 is smaller than a right angle, so the sorting plate 21 moves faster when moving from the front side to the rear side; When moving from the side to the front, move slowly.

Therefore, mixed grains of unhulled rice a and brown rice are fed to the supply hopper 32.
When fed to the sorting plate 21, the unhulled rice a and brown rice are initially mixed granular IE as shown in FIG.
As the next development, the brown rice grains with heavy specific gravity sink to the lower layer, and the unhulled rice a, which has lighter specific gravity, floats to the upper layer of the brown rice group, and only the brown rice grains that have sunk to the lowest layer are the left inclined protrusion 26 and the right inclined protrusion 27.
come into contact with. In this way, the bottom layer of brown rice that has come into contact with the left inclined protrusion 26 and the right inclined protrusion 27 is
6.27, as a secondary phenomenon, it gradually moves toward the upright wall 24 at the front edge of the sorting plate 21, and is deposited relatively thickly on the front half of the sorting plate 21. As a result, the rear half of the sorting plate 21 becomes relatively thin. In this way, brown rice scum accumulates relatively thickly on the front half of the sorting plate 21, and the sorting plate 21
When it becomes relatively thin in the rear half, the unhulled rice (a) floating on the surface of the brown rice tray in the front half of the sorting plate 21 slides on the surface of the sloping brown rice tray and moves toward the rear half of the sorting plate 21. do.

As a tertiary phenomenon, when the above operation is repeated, the brown rice that has accumulated thickly on the front half of the sorting plate 21 is moved to the left side along the front rising wall 24 due to the action of the tip of the left inclined projection 26. Start moving to . At this time as well, the brown rice that comes into contact with the left inclined protrusions 26 and 27 on the plate surface of the sorting plate 21 continues to be subjected to the sorting action described above while moving to the left. The layer of brown rice gradually increases in thickness as it moves, and as a result, part of the upper layer of brown rice begins to flow toward the rear half of the sorting plate 21, until the brown rice reaches the left end of the sorting plate 21. At that time, the purity is increasing
After that, the brown rice becomes completely brown rice and is taken out to the brown rice outlet 28. In this case, the brown rice outlet 28 of the brown rice bowl
The movement in this direction is mainly carried out by the tip of the left inclined protrusion 26, but since the left inclined protrusion 26 has a much larger area than the right inclined protrusion 27, the brown rice can be transferred reliably. Let's do it.

On the other hand, the unhulled rice a slides on the upper layer of the brown rice tray on the inclined surface and is piled up on the rear half of the sorting plate 21, but in the rear half of the sorting plate 21, the action of the right inclined protrusion 27 is caused as a quaternary phenomenon. Then, it is transferred to the right side of the sorting plate 21. However, due to the action of the right inclined protrusion 27, it is advanced to the right side of the sorting plate 21, and since the secondary phenomenon is still being sorted, the purity of the unhulled rice a gradually increases as it advances in the unhulled rice removal direction 030. The rice is completely unhulled and taken out from the unhulled rice outlet 30. During this time, the mixed grains are piled up in the center of the sorting plate 21 and swirl around, and the newly supplied brown rice and unhulled rice a are metabolized. only, and never go outside the sorting plate 21.

As already mentioned, the separating and sorting equipment for unhulled rice and brown rice started from the Mangoku machine, and after passing through the swinging type grain sorting equipment, the latest model has a rotating barrel type gray structure, but in any case, ,
There were mixed grains, and the mixed grains were returned to the sorting section and separated by some method. As described above, at the time this invention was proposed, the mixed grains were returned to the supply section of the sorting device, so a returning device was required even for single grains, and when combined with the hulling device, the entire grain was large.・There were flaws that made it more complicated.

In the present invention, upright walls 24 and 25 are formed on the front and rear edges of the sorting plate 21, which has a rectangular shape, and no mixed grain outlet is formed, but only one of the left and right edges is formed. A brown rice outlet 28 is formed at one side end, and an unhulled rice outlet 30 is formed at the other end. A device is attached to the IJ plate 21 for horizontal or inclined reciprocating swing in the direction after TN, and the plate surface of the sorting plate 21 is divided into a front half and a rear half, and the front half is used for the brown rice removal p28. A structure of a rocking type grain sorting device formed by forming a group of inclined protrusions 26 whose tips are inclined in the direction, and a group of inclined protrusions 27 whose tips are inclined in the direction of the unhulled rice outlet 30 in the rear half, respectively. Therefore, brown rice is sorted on board 2.
The brown rice outlet 2 on the left side is opened by the left inclined protrusion 26 on the front half of J.
8, the unhulled rice a can be taken out to the unhulled rice outlet 30 on the right side by the right-slanted protrusion 27 on the rear half of the sorting plate 21, and the mixed grains are sorted in the central part of the sorting plate 21 by being rotated by metabolism. The above-mentioned defects of the known examples can be overcome without ejecting the liquid to the outside of the plate 21.

Further, the present invention provides a left inclined protrusion 26 on the front half of the sorting plate 21.
Since the right-slanted protrusion 27 is provided on the rear half of the sorting plate 21, the effect obtained is achieved.

Moreover, since the front half and the rear half are formed in the swing type grain sorting device with the ratio of the area of the front half to the rear half, the area ratio of the left inclined protrusion 26 and the right inclined protrusion 27 is as follows. Since the left inclined protrusion 26 that transports the group of brown rice laterally can be made larger, it has the effect of smoothing the transfer of the overwhelmingly large number of brown rice particles.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a sorting plate and grains in a known example, FIG. 2 is a sectional view of a sorting plate in the known example, FIG. 3 is a front view of the known example, and FIG. 4 is a rear view of the present invention. , FIG. 5 is a perspective view of the crank part of the present invention, FIG. 6 is a left side view of FIG. 4, FIG. 7 is a plan view of the sorting plate of the present invention, FIGS. 8, 10, and 11. , 12th
The figure is an explanatory diagram of the operation, and FIG. 9 is a sectional view of the sorting plate. Sorting plate l, protrusion 2, grain 3, underframe 4.4 rod 5.4 rod 6,
Shaft 7, Shaft 8, Shaft 9, Shaft 10, Eccentric wheel 11, Rod 12, Supply side 13, Discharge side 14, Swinging side 15, Swinging side 16, Supply funnel 17, Unhulled rice outlet 18, Brown rice Outlet 19
, mixed grain outlet 20, sorting plate 21, front and rear width 22, left and right width 23, rising wall 24, rising wall 25, left inclined protrusion 26, right inclined protrusion 27, brown rice outlet 28, left wall 29, paddy rice removal Exit 3
0, right wall 31, supply hopper 32, support stand 33, support rod 34
, eccentric wheel 35. Rod 36, screw pestle 37, top 38, arm 39. Vertical movement rod 40. Boss 41. . Figure 1 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (2)

[Claims] (1) The rut shape is a rectangular sorting plate with upright walls formed on the front and rear edges respectively, no mixed grain outlet is formed, and one of the left and right edges is used for brown rice collection. A paddy/rice outlet is formed at one of the other end of the outlet, and a device is attached to the sorting plate for horizontal or inclined reciprocating swinging in the front and rear directions, and the plate surface of the sorting plate is divided into a front half and a rear half. Divided into two, the front half has a group of inclined protrusions whose tips are inclined in the direction of the brown rice outlet, and the rear half has a group of inclined protrusions whose tips are inclined in the direction of the unhulled rice outlet. Oscillating grain sorting equipment. (2) The vertical shape of the sorting plate is rectangular, with upstanding walls formed on the front and rear edges, respectively, and no mixed grain outlet is formed, and brown rice is taken out at either the left or right end. A paddy/rice outlet is formed at one of the other end of the outlet, and a device is attached to the sorting plate for horizontal or inclined reciprocating swinging in the front and rear directions, and the plate surface of the sorting plate is divided into a front half and a rear half. Divided into two, the front half has a group of inclined protrusions whose tips are inclined in the direction of the brown rice outlet, and the rear half has a group of inclined protrusions whose tips are inclined in the direction of the unhulled rice outlet. In the oscillating grain sorting device, the front half and the rear half are the front half
A swing-type grain sorting device designed to match the area ratio of the rut in the latter half.