JPS5998780A - 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 the Mangoku, which is a simple sieve screen, and then went through the swinging type grain sorting device, and the latest model is the rotating barrel type Graig 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 separated by the sorting device into the king of mixed grains of (1)...unhulled rice (2)...brown rice (3)...unseparated hulled rice φ brown rice. The unhulled rice is then 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. It is.

The conventionally known apparatus for sorting unhulled rice and brown rice is as described above, but the point proposed by the present invention is that it is defective in that the mixed grains are returned to the supply section of the sorting apparatus and recirculated and sorted as described above. No one pointed out that there is.

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 sorting 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 the conventional wisdom 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. It has become.

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, where l is a sorting plate, and the surface of the sorting plate l has countless protrusions 2 formed on a rough surface. has been done. When the grains 3 are placed on the rough surface of the sorting plate L and the sorting plate 1 is moved up and down diagonally as shown by the arrow, the grains 3 are subjected to the flow friction resistance of the protrusions 2 and gradually move 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 a π-shaped or sextuplic layer, the sorting plate 1 is moved back and forth in the direction of the arrow. When the grains 3 are moved, only the grains 3 that sink to the lowest layer and directly contact the plate surface of the sorting plate L move in the direction of arrow A, and the grains 3 above the second layer superimposed on it do not move. From this, selection can be made.

This sorting plate 1 is attached to an underframe 4 as shown in FIG. 5.6 is a side rod, the lower end of the side rod 5.6 is pivoted 7.8 on the underframe 4, and a sorting plate l is attached to the upper end of the side rod 5.6.
is applied to the axis M9.1o. 11 is an eccentric wheel, and 12 is a rod. When the eccentric wheel 11 rotates, the sorting plate l is reciprocated in the direction of the arrow through the rod 12. The sorting plate l has a rectangular ridge shape, the - side is the supply side 13, the other side opposite to the supply side 13 is the discharge side 14, and the supply side 13 is the discharge side 1.
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 swinging side 16 at an α angle. It is sloping. The reason why the sorting plate l 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 no longer occurs.

A supply funnel 17 supplies the grains 3 from the corners of the supply side 13 and the shaking side 16. The discharge side 14 is opened over 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 l are Shake it.

Therefore, as a secondary sorting phenomenon, brown rice with heavy specific gravity sinks to the lower layer and is pushed up to the shaking upper side 16, and as a secondary phenomenon, as shown in El in Fig. taken out. After the unhulled rice a, which has a light specific gravity, floats on top of the brown rice that has sunk to the lower layer, it drifts to the shaking side 15 as shown in E2 and is taken out to the unhulled rice outlet 18, and in the middle there is E2.
As shown in 3, the unseparated mixed grains are distributed and taken out to the mixed grain outlet 20.

As explained above, in the known example, when unhulled rice a is taken out to the unhulled rice outlet 18 on the shaking side 15 and brown rice is taken out to the brown rice outlet 19 on the shaking side 16, they are not separated in the middle. The mixed grains 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, an upright wall is formed on the front and rear edges of the sorting plate, which has a rectangular eyelid shape, and no mixed grain outlet 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 horizontal or inclined reciprocating swinging is attached to the sorting plate in the front-rear direction, and the sorting plate is inclined in the front-rear direction. The swinging grain sorting device is formed to be adjustable in angle, and the front and rear parts of the sorting plate are pivoted to the upper end of a support rod whose lower end is pivoted to the underframe for mounting the sorting plate. a rocking grain sorting device, which is configured such that the lower end of the support rod on either the front side or the bottom side is adjustable in the vertical direction; and the sorting plate. The lower end of the front support rod is pivoted to the support base on which the
Screw punches each having opposite screw grooves carved in the center are mounted on a shaft that can rotate freely, a manual rotation handle is attached to the end of the screw screw, and a vertically movable handle is attached to the end of the screw screw, and a vertically movable handle is attached to the end of the screw screw. A vertically movable lever is provided, and a pair of pieces that move widely and narrowly by rotation of the screw are screwed into the threaded groove of the screw, and the lower end of a rear support rod is fixed to the vertically movable lever. , the swing type grain sorting device has a configuration in which the lower ends of the arms that are pivoted to the top are respectively pivoted to the vertically movable rods, and the sorting plate is pivoted to the upper ends of the support rods.

The oscillating grain sorting device of the present invention will be explained with the help of a diagram.
In FIG. 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 left-right width 23 longer than a front-back width 22, and a rectangular profile. 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 whose tips are directed toward the left if it is the left side of the left or right side is formed on the entire plate surface, and the rear half of the sorting plate 21 On the plate surface, a group of right-slanted protrusions 27 facing rightward on the right side of 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 protrusions 27 are all formed in a direction to draw the grain toward the upright wall 24 at the leading edge.

A brown rice outlet 28 is formed in the left front part of the sorting plate 21, and the rest is closed off 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 30 is provided. The sorting plate 21 has a shaft at the upper end of a support rod 34, which is pivotally attached to a support base 33, and the angle between the rod 36 and the support rod 34 is smaller than a right angle. FIG. 5 is a perspective view of the rod 36, which shows that the rod 36 is wider toward the top.

Reference numeral 37 denotes a screw screw for adjusting the inclination angle of the sorting plate 21 in the front-rear direction.
Screw pieces 38 and 38 onto 2, respectively, and make pieces 38 and 38.
The upper end of the arm 39 is pivotally fixed, 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 is smaller than the rear right angle than the front side. When moving to the rear, it moves quickly; when moving from the rear to the front, it moves slowly.

Therefore, mixed grains of unhulled rice a and brown rice are fed to the supply hopper 32.
When supplied to the sorting plate 21, the unhulled rice a and brown rice are initially in a completely mixed grain state as shown in FIG. As a result, the brown rice sac with a heavy specific gravity sinks to the lower layer, and the unhulled rice a, which has a lighter specific gravity, floats to the upper layer of the brown rice group, and only the brown rice sump that has sunk to the lowest layer comes into contact with the left inclined protrusion 26 and the right inclined protrusion 27.

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 affected by the inclined protrusions 26 and 27, and as a secondary phenomenon, gradually moves to the front edge of the sorting plate 21. It moves toward the rising wall 24 and is deposited relatively thickly on the front half of the sorting plate 21. On the contrary, the rear half of the sorting plate 21 is deposited relatively thinly. In this case, the grain is moved forward and backward by rotating the screw pestle 37. That is,
When the bar 37 is rotated, the pieces 38 and 38 move closer and further away due to the action of the opposite screw grooves 42 and 42.
Therefore, the support rod 34. -34 or vertically and move the vertical movement rod 40 up and down. Then, the front and rear inclination angles of the sorting plate 21 are adjusted, and the optimum distribution state of grains can be determined. On the contrary, the rear half of the sorting plate 21 is relatively thin. In this way, when the brown rice scum accumulates relatively thickly on the front half of the sorting plate 21 and becomes relatively thin on the rear half of the sorting plate 21, the unhulled rice a floats to the surface of the brown rice sludge on the front half of the sorting plate 21. slides on the surface of the sloping brown rice rack and picks up the sorting plate 2.
Move to the second half of 1. 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 . Also at this time, the inclined protrusions 26 and 27 on the plate surface of the sorting plate 21
Since the brown rice in contact with the brown rice 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 along the rising wall 24, and as a result, the upper layer of the brown rice On the contrary, some of the brown rice begins to flow toward the rear half of the sorting plate 21, and when the brown rice reaches the left end of the sorting plate 21, the purity improves further and only complete brown rice b becomes brown rice. It is taken out through the takeout port 28. In this case, the movement of the brown rice tray in the direction of the brown rice outlet 28 is as follows.
The tip of the left inclined protrusion 26 is in charge of this, and since the left inclined protrusion 26 has a much larger area than the right inclined protrusion 27, the brown rice can be transferred reliably.

On the other hand, the unhulled rice a slides on the upper layer of the brown rice tray on the inclined surface and is deposited on the rear half of the sorting plate 21, but in the rear half of the sorting plate 21, it is affected by the right inclined protrusion 27 as a quaternary phenomenon. It is transferred to the right side of the sorting plate 21. However, due to the action of the right inclined protrusion 27, the rice 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 decreases as it moves toward the unhulled rice outlet 3o. The amount of unhulled rice increases, and finally, the unhulled rice becomes complete and is taken out from the unhulled rice outlet 3o.During this period, the mixed grains are deposited in the center of the sorting plate 21 and swirl around, and the newly supplied brown rice and unhulled rice a are metabolized. It never leaves the sorting board 21.

As already mentioned, the separating and sorting equipment for unhulled rice and brown rice started with the Mangoku machine, went through the swinging type grain sorting equipment, and 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 are formed on the front and rear edges of the sorting plate, which has a rectangular shape, and no mixed grain outlet is formed at either one of the left and right edges. A brown rice outlet is formed at one end, and an unhulled rice outlet is formed at the other end, and a device is attached to the sorting plate for horizontal or tilted reciprocating rocking in the front and back directions, and the tilt angle of the sorting plate is adjustable in the front and rear directions. and the front and rear sides of the sorting plate are pivoted to the upper end of a support rod whose lower end is pivoted to the underframe for mounting the sorting plate. At the same time, the lower end of the support rod on either the front side or the rear side has a swing type grain sorting device configured to be adjustable in the vertical direction, and the sorting plate is attached thereto. The lower end of the front support rod is pivoted to the support base, and screw screws each having opposite screw grooves cut in the center thereof are rotatably supported on the rear side of the support base, and
A manual rotation handle is attached to the end of the screw punch, a vertically movable rod is provided at a lower position near the screw screw, and the screw groove of the screw screw can be widened and narrowed by rotation of the screw screw. A pair of moving pieces are screwed together, the lower end of the rear support rod is pivotally fixed to the vertically moving rod, the lower ends of the arms that are pivotally fixed to the pieces are respectively pivotally fixed to the vertically moving rod, and the lower end of the rear support rod is pivotally fixed to the vertically moving rod. Since the structure is a swing type grain sorting device in which the sorting plate is fixed to the upper end of the rod, the unhulled rice a is sorted into the brown rice outlet 28 on the left side by the left inclined protrusion 26 on the front half of the sorting plate 21. The right inclined protrusion 27 on the rear half of the plate 21 allows the unhulled rice to be taken out to the right side outlet 30, and the mixed grains are rotated by metabolism in the center of the sorting plate 21 and are not discharged outside the sorting plate 21. , the above-mentioned deficiencies of the known examples can be overcome.

Further, in the present invention, because of the above configuration, when the eccentric wheel 35 is rotated, the sorting plate 21 moves quickly when moving from the front side to the rear side, and moves slowly when moving from the rear side to the front side. Under the influence of the inclined protrusions 26 and 27, the brown rice in the bottom layer gradually moves toward the rising wall 24 at the front edge of the sorting plate 21 as a secondary phenomenon, and vice versa. The latter half of 21 is deposited relatively thinly, but in this case, the movement of the grain forward and backward is caused by the screw pestle 37.
You can make M-sake by rotating it.

[Brief explanation of the drawing]

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 board 1, 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 projection 27. Brown rice outlet 28, left wall 29, unhulled rice outlet 30, right wall 31, supply hopper 32, support 33, support rod 34, eccentric wheel 35. Rod 36, screw pestle 37, top 38
, arm 39, vertically movable rod 40, boss 41, screw groove 42° Patent applicant So Yamaki - 1 other person Figure 1 Figure 1 Figure 2 Leap Figure 3

Claims (3)

[Claims] (1) The vertical track shape is rectangular. An upright wall is formed on the front and rear edges of the sorting plate, and no mixed grain outlet is formed at either one of the left and right ends. An unhulled rice outlet is formed at one end of the brown rice outlet, and a device is attached to the sorting plate to swing it back and forth horizontally or tilted back and forth, and the inclination angle of the sorting plate is adjustable in the front and back direction. A swing-type grain sorting device. (2) The rut shape is rectangular. Upright walls are formed on the front and rear edges of the sorting plate, and a mixed grain outlet is not formed, but on one of the left and right edges. An unhulled rice outlet is formed at one end of the brown rice outlet, and a device is attached to the sorting plate to swing it back and forth horizontally or tilted back and forth, and the inclination angle of the sorting plate is adjustable in the front and back direction. In the one provided, the front side and rear side of the sorting plate are
The lower end of the support rod is pivoted and supported by the underframe for mounting the sorting plate, and the lower end of the support rod on either the front or rear side is pivoted. , an oscillating grain sorting device that can be adjusted vertically. (3) The vertical shape is rectangular. Upright walls are formed on the front and rear edges of the sorting plate, and no mixed grain outlet is formed at either one of the left and right edges. A brown rice outlet is formed at one end and an unhulled rice outlet is formed at one end of the other side, and the sorting plate is equipped with a device for horizontally or inclinedly reciprocating swinging in the front and rear directions, and the sorting plate is attached to a support base on which the sorting plate is attached. The lower end of the front support rod is pivoted, and on the rear side of the support, a screw punch with opposite thread grooves cut in the center is freely rotatable. A manual rotation handle is attached to the screwdriver, and a vertically movable lever is installed at a lower position near the screwdriver, and a vertically movable rod is installed in the screw groove of the screwdriver, and a pair of pieces that move widely and narrowly as the screwdriver rotates are installed in the screw groove of the screwdriver. The lower ends of the rear support rods are screwed together, the lower ends of the rear support rods are pivotally fixed to the vertically moving rods, the lower ends of the arms that are pivotally fixed to the pieces are respectively pivotally fixed to the vertically moving rods, and the sorting rods are fixed to the upper ends of the supporting rods. A swing-type grain sorting device with a plate fixed to the shaft.