JPS59102485A - 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 separates mixed grains of unhulled rice and brown rice into unhulled rice and brown rice, respectively.

Separation of unhulled rice and brown rice.As is well known, it can be said to be extremely simple, but on the other hand, it can also be said to be extremely difficult. After the grain sorting system, the latest model has a rotary barrel grader structure.

In any case, mixed grains are present, and the mixed grains are returned to the potash selection 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 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 conventional common sense and is particularly designed for a sorting device that does not allow the mixed grains generated during the sorting operation to come out of the sorting plate, and as a result, countless Various effects can now be expected.

The reason why mixed grains always occur when separating unhulled rice and brown rice using conventional sorting equipment is explained using example diagrams as shown in Figures 1 to 3 below. is a typical well-known example which is most widely used at present, and l is a sorting plate, and the surface of the sorting plate l is formed with countless protrusions 2 and is formed into a rough surface. When the grain 3 is placed on the rough surface of the sorting plate 1 and the sorting plate l is moved diagonally back and forth up and down as shown by the arrow, the grain 3 is subjected to flow friction resistance by the two groups of protrusions, and moves as shown by the arrow A. It is gradually swayed in the direction.

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 L in five or six layers, the sorting plate L is moved by the arrow opening as described above. If the grains 3 are moved back and forth in the direction indicated by the arrow A, only the grains 3 that have sunk to the bottom layer and are in direct contact with the plate surface of the sorting plate 1 will move in the direction of arrow A, and the grains 3 will be moved in the direction of arrow A, and the grains 3 will be moved in the direction of the arrow A, and the grains 3 that have sunk to the bottom layer and are in direct contact with the plate surface of the sorting plate 1 will move in the direction of arrow A. Since the grains 3 above do not move at all, they can be sorted.

This sorting plate 1 is attached to the underframe 4 as shown in FIG. 5 and 6 are diagonal rods, the lower ends of the diagonal rods 5 and 6 are pivoted 7 and 8 on the underframe 4, and a sorting plate l is pivoted to the two ends of the diagonal rods 5 and 6. 1o will be given. 11 is an eccentric wheel, and l2 is a rod. When the eccentric wheel 11 rotates, the sorting plate 1 is reciprocated in the direction of the arrow through the rod 2. The sorting plate 1 is a rectangular shape, one side is a supply side 13, and the other side facing the supply side 13 is a discharge side 14, and the supply side 13 is formed higher than the discharge side 14 and is inclined. . In addition, in the lateral direction with respect to the direction connecting the supply side l3 and the discharge side l4, one side is the swinging side l5 and the other side is the swinging side 16, and the swinging side 15 is lower than the swinging side l6. α angle inclined. The reason why the sorting plate l is tilted at an α angle is to distribute the grains 3 over the entire plate surface, and when the sorting plate l is horizontal, there is a blank area A on the swinging side l5 as shown in FIG. It is formed. However, if the angle of α is tilted as described above, the blank portion A will not occur.

Reference numeral 17 denotes a supply funnel, and the grains 3 are supplied from the corners of the supply side 13 and the shaking side 16. The discharge side l4 is opened over the entire width, and an unhulled rice outlet l is provided on the swinging side 15 of the discharge side l4.
8, and a brown rice outlet 1 is provided on the shaking side l6 of the discharge side l4.
9 is provided, and a mixed grain outlet 2o is provided in the middle thereof.

In this known example, when the mixed grains are fed onto the sorting plate l from the supply funnel l7 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 primary sorting phenomenon, brown rice b with heavy specific gravity sinks to the lower layer and is stirred up to the shaking side 16, and as a secondary phenomenon, it drifts on the shaking side l6 with a trajectory like E1 in FIG. It is taken out. The unhulled rice a with a light specific gravity floats on top of the brown rice b that has sunk to the lower layer, and then drifts to the rocking side 15 as shown in E2 and is taken out to the unhulled rice removal r] 18, and in the middle there is a mixture that is not separated as shown in E3. The grains were distributed and taken out to the mixed grain outlet 20, and in this way mixed grains were produced.

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 returning device is always required. If we were to create a sorting device that does not discharge mixed grains, we would not need a return device for mixed grains, so instead of using Bakari 1, which is an extremely simple device, we would be able to create a sorting device that does not discharge mixed grains. Author: It's easy to do.

Therefore, in the present invention, an upright L wall is formed on the front and rear edges of the sorting plate, which has a rectangular profile, and no mixed grain outlet is formed. A brown rice outlet is formed at one end of the screen, and an unhulled rice outlet is formed at the other end, and the front half of the plate surface of the sorting plate is provided with an inclined protrusion whose tip is inclined toward the brown rice outlet. The rear half of the plate surface of the sorting plate is provided with a slanted protrusion whose tip is inclined toward the unhulled rice outlet, and the sorting plate is provided with approximately water illumination in the front-rear direction. A device capable of reciprocating rocking is attached to the grain sorting device, and the reciprocating rocking device has the structure of a rocking grain sorting device in which the sorting plate is moved slowly forward and the sorting plate is moved backward quickly. be.

The oscillating grain sorting device of the present invention will be explained with the help of a diagram.
In FIG. 4 and subsequent figures, 2l is a sorting plate of the present invention, and the sorting plate 2l of the embodiment has a front and back width of 2 as shown in FIG.
The left and right width 23 is longer than that of 2, and the track shape is a rectangular shape that is long on the left and right sides. At the front edge of the sorting plate 2l, two vertical walls 24 are formed over the entire width, and similarly, the sorting plate 2l
A rising wall 25 is also formed at the rear edge over the entire width. Therefore, on the front half of the sorting plate 2l, a group of left inclined protrusions 26 whose tips point toward the left if it is the left side of the left side is formed on the entire plate surface, and the rear half of the sorting plate 2l On the board of
If it is the right side of the left or right side, the right inclined protrusion 27 is facing rightward.
Form a group as a whole. As is clear from the cross-sectional view of FIG. 9, the left inclined projection 26 and the right inclined barrel projection 27 are both formed in a direction to draw the grain toward the rising wall 24 of 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 2l, and 32, which is otherwise closed by the right wall 3l, is a supply hopper, which is provided on the front side of the side where the unhulled rice outlet 30 is provided. The lower end of the front support rod 34 is pivoted 47 to the front side of the support 33. A screw rod 37 is pivotally attached to the rear side of the support base 33 so that it can only rotate freely. screw rod 3
Opposite screw grooves 42, 42 are respectively carved on both left and right sides from the center, and the screw grooves 42, 42 are each provided with a piece 38.
, 38 are screwed together. A vertically movable rod 42 is provided below the screw rod 37 so as to be movable up and down, and a boss 4l is attached to the vertically movable rod 42.
, 4l are fitted freely only in rotation, and arms 39, 39 are attached between the pieces 38, 38 and the bosses 4l, 4l, respectively. Further, the lower end of the rear support rod 34 is pivotally attached to the vertical movement rod 40, and a mounting base 45 is attached to the upper ends of the front support rod 34 and the rear support rod 34.
Attach the shaft.

Therefore, the sorting plate 2l is pivotally attached to the upper surface of the left side of the mounting base 45 via the shaft attachment part 43, and the top 4 is attached to the right end of the mounting base 45.
4 is fixed on the shaft, and the adjustment rod 46 perpendicular to the piece 44 is
are screwed together, and the upper end of the adjusting screw 46 is engaged with the lower end of the sorting plate 2l.

35 is an eccentric wheel, and 36 is a rod, but the angle between the rod 36 and the support rod 34 is smaller than a right angle 6, that is, it is a quick return mechanism, and the sorting plate 2l moves slowly forward and quickly backward. do. FIG. 5 is a perspective view of the rod 36, and it shows that the rod 36 has a wider shape toward the top. 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 2l moves faster when moving from the front side to the rear side, and When moving from the side to the front, move slowly.

Therefore, mixed grains of unhulled rice a and brown rice b are fed to the supply hopper 32.
When fed to the sorting plate 2l, the unhulled rice a and brown rice b are initially in a completely mixed grain state as shown in Figure 1O, but in this state they are subjected to horizontal rocking in the front and back direction, so as a primary phenomenon, the specific gravity changes. The heavy brown rice b sinks to the lower layer, and the light rice a floats to the upper layer of the brown rice b group, and only the brown rice b 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 lowest layer of brown rice b that has come into contact with the left inclined protrusion 26 and the right inclined protrusion 27 is influenced by the inclined protrusions 26 and 27, and as a secondary phenomenon, gradually forms the raised wall of the front edge of the sorting plate 2l. 24, 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, when the brown rice b is deposited relatively thickly on the front half of the sorting plate 2l and becomes relatively thin on the rear half of the sorting plate 21, the unhulled rice a floating on the surface of the brown rice b on the front half of the sorting plate 2l is , it slides on the surface of the sloping brown rice b and moves toward the rear half of the sorting plate 2l.

The state of this secondary phenomenon is adjusted by rotating the screw rod 37. That is, when the screw rod 37 is rotated, the opposite screw groove 42
, 42, respectively, move toward and away from each other, so that the arms 39, 3
9 can be inclined or vertical. Therefore, the vertically movable rod 40 is moved up and down by the arms 39, 39, and the rear support rods 34, 34 are moved up and down, thereby adjusting the front and rear inclination of the sorting plate 2l.

As a tertiary phenomenon, when the above operation is repeated, brown rice b, which has accumulated thickly on the front half of the sorting plate 2l, moves 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, the brown rice b that is in contact with the inclined protrusions 26 and 27 on the plate surface of the sorting plate 2l continues to be subjected to the above-mentioned sorting action while moving to the left.
As it moves along the standing earthen wall 24, the layer of brown rice b gradually increases in thickness, and as a result, part of the upper layer of brown rice b begins to flow toward the rear half of the sorting plate 21, and the brown rice b When the rice reaches the left end of the sorting plate 2l, the purity is further improved and only complete brown rice b is taken out to the brown rice outlet 28. In this case, the movement of brown rice b in the direction of the brown rice outlet 28 will be solely carried out by the tip of the left inclined protrusion 26, but the left inclined protrusion 26 will be moved by the right inclined protrusion 27.
Since the area is much larger than that of , brown rice b can be transferred reliably.

On the other hand, the unhulled rice a slides on the upper layer of the brown rice b on the slope and is deposited on the rear half of the sorting plate 2l, but on the rear half of the sorting plate 2l, it is affected by the right inclined protrusion 27 as a quaternary phenomenon. It is transferred to the right side of the sorting plate 2l. However, due to the action of the right inclined protrusion 27, it is advanced to the right side of the sorting plate 2l, and since the secondary phenomenon is still being sorted, the purity of the unhulled rice a gradually increases as it advances toward the unhulled rice outlet 30. The tertiary phenomenon, that is, the movement of brown rice b toward the direction of the brown rice outlet 28, and the quaternary phenomenon, that is, the movement of the unhulled rice toward the unhulled rice outlet 30, are due to sorting. This is done by adjusting the left and right inclination of the plate 2l.

That is, by rotating the adjusting screw 46, the horizontal inclination of the sorting plate 2l is adjusted, and the tertiary phenomenon and the quaternary phenomenon can be subtly adjusted by the degree of inclination.

During this time, the mixed grains are accumulated in the center of the sorting plate 21 and swirl around, and the newly supplied brown rice b and unhulled rice a are only metabolized and never leave the sorting plate 2l.

As already mentioned, the separating and sorting equipment for unhulled rice and brown rice started from Mangoku, and then went through the swinging type grain sorting equipment, and the latest model has the old rotating gray goo 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 profile, 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 of the sorting plate, and an inclined protrusion whose tip is inclined toward the brown rice outlet is provided on the front half of the plate surface of the sorting plate. The rear half of the plate surface of the plate is provided with an inclined protrusion whose tip is inclined toward the unhulled rice outlet, and the sorting plate is equipped with a device that can reciprocate approximately horizontally in the front and rear directions. Since the reciprocating oscillating device is a oscillating grain sorting device that moves the sorting plate forward slowly and quickly when moving the sorting plate backward, when the eccentric wheel 35 is rotated, the rod 36 and the support Since the angle of the rod 34 is smaller than a right angle, 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. Paddy rice a, which has a lighter specific gravity, is floated to the upper layer of brown rice group B,
Due to the inclined protrusions 26, 27 and the above-mentioned rocking, the brown rice b in the bottom layer is gradually moved in the direction of the rising wall 24 at the front edge of the sorting plate 2l as a secondary phenomenon, and is separated into the front half of the sorting plate 2l. On the other hand, the rear half of the sorting plate 21 moves and separates the unhulled rice a floating on the surface of the brown rice b. Then, as a tertiary phenomenon, the brown rice b is moved to the left along the front standing earthen wall 24 by the action of the tip of the left inclined protrusion 26, and on the other hand, the unhulled rice a is moved to the left by the action of the tip of the left inclined protrusion 26. This action causes the particles to be transferred to the right side of the sorting plate 2l.

During this time, the mixed grains accumulate in the center of the sorting plate 2l and rotate around, and the newly supplied brown rice b and unhulled rice a are only metabolized and never go outside the sorting plate 2l. defects can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a sorting plate and grains in a known example, FIG. 2 is a cross-section IN of a sorting plate in the known example, and FIG. 3 is a front view of the known example.
4 and 6 are rear views of the present invention, FIG. 5 is a left side view of FIG. 4, FIG. 7 is a perspective view of the crank part of the present invention, and FIG. 8 is a plan view of the sorting plate of the present invention. Figure, Figure 9, Figure 11, Figure 12
13 are explanatory diagrams of the operation, and FIG. 10 is a sectional view of the sorting plate. Sorting plate l, protrusion 2, grain 3, underframe 4, diagonal rod 5, diagonal rod 6,
Shaft mounting 7, shaft mounting 8, shaft mounting 9, shaft NIO, eccentric wheel 11, rod l2, supply side l3, discharge side 14, swinging side 15, swinging side l6, supply funnel 17, unhulled rice outlet l8, brown rice removal Exit 19
, mixed grain outlet 20, sorting plate 2l, front and back 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 rod 37, piece 38, arm 39, vertically moving rod 40, post 41, screw groove 42, shaft attachment part 43, piece 44, mounting base 45, adjusting screw rod 46, moving link 47
. , -498- . -499- Procedural amendment (voluntary) January 14, 1980 Kazuo Wakasugi, Commissioner of the United Patent Office 1. Display of the case Showa 5741 Patent Application No. 21.2194 2. Name of invention Oscillating grain sorting device 3. Related to the old case to be amended Patent applicant Address: 17, 813 Tendo Ko, Tendo City, Yamagata Prefecture Name: Soichi Yamamoto 4. Agent 11 locations 〒160 Higashij; C Tokyo Shinjuku 1st Nishishinkuzu 6-] No. 7 23ζ (Stoke Pilding lOF Spear,) Karasu 7,,,
,, Name (8047) Shinri 1-! F Sekishu An J Ri Otsu”) 1
Hi story East 1i Te (342) 0738/0739''' 5. Supplement + l'. ) is corrected.

Claims (1)

[Claims] The pupil shape is rectangular, and upright walls are formed on the front and rear edges of the sorting plate, and no mixed grain outlet is formed, but there is a brown rice outlet on either the left or right side edge. An unhulled rice outlet is formed at one of the other ends of the sorting plate, and an inclined protrusion whose tip is inclined toward the brown rice outlet is provided on the front half of the plate surface of the sorting plate. The rear half is provided with an inclined protrusion whose tip is inclined toward the unhulled rice outlet, and the sorting plate is equipped with a device capable of reciprocating approximately horizontally in the front-rear direction, and the reciprocating rocking device is an oscillating grain sorting device in which the sorting plate moves slowly forward and the sorting plate moves backward quickly.