JPS6213075B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIGS. 1 and 2 are the first known examples. A is the sorting plate, and the left and right sides are horizontal as shown in the figure.
On the A side of the plate, countless protrusions B are formed that have a directionality to the right (in the figure, the directionality is to the right), C is the raw material supply side, and D is the separation grain side. This is the discharge side. Directivity or directivity refers to, for example, a sawtooth shape with a nearly vertical surface and a more gently sloped surface. E is an upright wall formed around the entire circumference except for the discharge side D, F is brown rice in mixed grains, and G is unhulled rice.

In Figure 1, when the sorting plate A is moved linearly back and forth in the direction of the arrow W (horizontal in the figure, but can also be moved diagonally up and down), the layered brown rice F is removed.
Among the mixed grains of unhulled rice G and unhulled rice G, since brown rice F has a slightly higher specific gravity than unhulled rice G, it is distributed in the lower layer as a primary phenomenon, and unhulled rice G rises to the upper layer. As a second phenomenon, the brown rice F is swayed toward the upright wall E due to the directional action of the protrusion B, drifts, and collides with the upright wall E, accumulating, and eventually, as shown by arrow A. Fold back. When brown rice F, which is relatively important (compared to unhulled rice, of course) distributed in the lower layer, turns back as shown by arrow A in Figure 1, the unhulled rice G floating to the upper layer is pushed by the folded brown rice F group. It is pushed toward the upright wall E' and drifts, and the two separate. However, since the protrusions B formed on the plate A have a directional property of shaking the grains in the direction of the upright wall E, a blank portion H is created in the vicinity of the upright wall E'. In addition, since the direction of the swing W is just a linear reciprocating motion,
An impact similar to a collision occurs at each dead center position on the left and right sides. Moreover, since the contact between rice grains is simple, it takes time to separate the top and bottom of the brown rice F and the unhulled rice G, which is the primary phenomenon.

FIG. 3 shows a second known example, in which the upright wall E' side is inclined low in order to eliminate the blank section H (this inclination is called an inclination in the sorting direction). However, other drawbacks have not been resolved. In other words, the upright wall E′ side is the upright wall E
The grain group is distributed over the entire plate A by giving a slope v.

Although there are known rocking grain sorting devices with other configurations, the ones that are actually used are only the first known example or the second known example, and especially the second known example. There are overwhelmingly many known examples.

However, the above-mentioned known example has a defect in that delicate selection cannot be performed. For example, FIG. 4 is an explanatory diagram of the sorting device shown in FIG. 3, which is currently the most widely used sorting device. Brown rice F jumps. At that time, brown rice F, which had been separated into the lower layer, jumped out to the upper layer again.
Separation takes time. Furthermore, since the separation is performed by jumping as described above, it has a negative effect on delicate separation.

Thus, the present invention has been devised by providing upright walls around the four peripheries of a horizontal sorting plate having a rectangular planar shape, and the sorting plate is configured to perform a clockwise circular motion when it is right.
Numerous protrusions are formed on the surface of the sorting plate, and each of the upright walls in the longitudinal direction of the sorting plate is partially opened to form a discharge port on both sides, and the discharge port is supplied to the upper center of the sorting plate. A grain sorting device with an opening and a sorting plate with one longitudinal side on the front side and the other side on the rear side, with standing walls provided on each of the front and rear sides, and in the front-rear direction from the front side to the rear side. A right standing wall is provided on the right side, and a left standing wall is provided on the left side, and countless protrusions each having a pushing surface for pushing toward the right standing wall are formed on the surface of the sorting plate, and the sorting plate rotates clockwise when viewed from above. A discharge port for particles having a small specific gravity is provided at a corner of the left standing wall of the front standing wall, and a discharge port for particles having a small specific gravity is provided at a corner of the right standing wall of the rear standing wall. The structure of the grain sorting device is such that each particle discharge port is opened.

FIG. 5 is a perspective view of the horizontal sorting plate of the present invention, in which 1 is a horizontal sorting plate having a rectangular planar shape;
One side in the longitudinal direction is the front side 2, the other side is the rear side 3, and the protrusion 5 has a pushing surface 6 that can push grains in either the left or right direction with respect to the front-rear direction 4.
are formed in countless numbers on one surface of the board. 6A and 6B show enlarged views of the extrusion surface 6. FIG. 6A shows the extrusion surface 6 formed as a serrated protrusion 5, and FIG. That is. FIGS. 6C and 6D are plan views showing the direction of the pushing surface 6, and the direction of the pushing surface 6 in FIG.
However, the direction of the pushing surface 6 in Figure 2 is parallel to
It is tilted like t′-t′. The sorting plate 1 is
There will be standing walls around all four sides. 7 is front 2
⁷¹ is a right standing wall, ⁷² is a left standing wall, and ⁷³ is a standing wall provided on the rear side 3. The sorting plate 1 is installed horizontally within the frame 8. That is,
There are a pair of mounting pieces 9, 9 on each of the front, rear, left and right sides of the sorting plate 1.
¹ , 9 ² , 9 ³ are attached, and the lower ends of wires or hanging rods 10 , 10 ¹ , 10 ² , 10 ³ are fixed to the mounting pieces 9 (hereinafter referred to as hanging rods).
Each upper end of ... is fixed to the frame 8.

Thus, discharge ports 11 and 12 are formed in the upright walls 7 and ⁷³ , each partially opening. The opening position of the discharge port 11 is determined in relation to the direction of the pushing surface 6 of the protrusion 5 and the direction of circular motion of the sorting plate 1. That is, if the circular motion direction P is clockwise rotation, and if the pushing surface 6 of the protrusion 5 faces the right standing wall ⁷¹ , the discharge port 12 opens toward the left standing wall ⁷² , and the discharge port 11 is opened near the right standing wall ⁷¹ . Thus, the supply hopper 13 opens directly above the center of the sorting plate 1.

A motor 14 is disposed below the sorting plate 1 at a desired position of the frame 8, and a belt 17 is placed between a receiver wheel 15 provided near the motor 14 and a master wheel 16 of the motor 14. pass around. 18 is a vertical axis of the receiver wheel 15;
5, and an eccentric body 19 is fixed to its upper end. The eccentric body 19 rotates horizontally below the central portion of the sorting plate 1. That is, the vertical shaft 18 is located directly below the central portion of the sorting plate 1. The lower end of a vertical shaft 20 that projects upward is fixed to the eccentric position of the eccentric body 19, and the upper end 21 of the vertical shaft 20 is pivoted to a bearing mechanism 22 attached to the lower surface of the sorting plate 1.

Therefore, as shown in FIGS. 1 and 2, when viewed from above, the sorting plate 1 does not swing back and forth in a linear reciprocating motion W, but in the horizontal direction as indicated by the arrow P in each figure. It moves in a circular motion. This circular motion is not a rotational motion centered on one point, but the entire body moves in a circular motion, and the locus of this motion is shown in FIG. That is, when we look at any one point T on the sorting plate 1, it moves in a perfect circle as shown by the arrow P, and this movement is the same for all points.

Next, its effect will be described.

As shown in Fig. 8, the outer circumferential shape may be either circular or square, but a tray 1' with an upright wall 3' around it is prepared, and one or two layers are placed inside the tray 1'. If you line up the rice grains 2' with no gaps and slowly rotate the tray 1' clockwise as shown by the P arrow, even if the surface of the tray 1' is completely flat with no unevenness, the rice grains 2' will be gently placed. It rotates to the left P' in a fluid manner. In other words, the movement of tray 1' is in the opposite direction.
It rotates in the direction of the P' arrow. This phenomenon is observed only when there is a standing wall 3' around the basin like tray 1', and is a natural law. The present invention is an application of this natural law.

However, the motor 14 is energized and the original pulley 16.
When the belt 17, receiver wheel 15, and vertical shaft 18 are rotated, and the eccentric body 19 is rotated, the sorting plate 1 is moved in the direction of arrow P by the upper end 21 of the vertical shaft 20 attached to the eccentric part of the eccentric body 19. Make a circular motion. In this state, if mixed grains of brown rice and unhulled rice are supplied from the supply hopper 13 onto the center of the sorting plate 1 in an amount distributed in at least three layers on the entire surface, as a first phenomenon, the brown rice with a high specific gravity will be placed in the lower layer. Paddy rice with a small specific gravity floats to the top. Therefore, only the brown rice distributed in the lower layer comes into contact with the 5 groups of protrusions, and the unhulled rice distributed in the upper layer does not come into contact with the 5 groups of protrusions.

At this time, the following phenomenon appears.

In other words, as shown in Figure 8, brown rice is originally grown in the direction indicated by the X arrow in the left half of Figure 8.
In the right half of Fig. 8, they try to move in the directions indicated by the X' arrows, but this is a phenomenon that occurs when the protrusion 5 is not formed.
When the protrusions 5 are formed, the brown rice distributed in the lower layer is in contact with the protrusions 5, and since the protrusions 5 have a pushing surface 6 that pushes in the left and right direction, the pushing surface 6
This action overcomes the force that moves it in the direction of the X arrow, and as shown in Figure 10, even in the left half of the brown rice, it moves in the direction of the X' arrow, but does not move in the direction of the X arrow.

However, the unhulled rice distributed in the upper layer is not in contact with the projections 5. Therefore, the sorting plate 1 is P
If it makes a right circular movement in the direction of the arrow, it will rotate to the left in the direction of the arrow P', and the two will be separated, as shown in the explanatory diagram of FIG.

The present invention has the above-described structure and function, and has upright walls 7, 7 on the four peripheries of the horizontal sorting plate 1 having a rectangular planar shape.
¹ , 7 ² , and 7 ³ are provided, and the sorting plate 1 is configured to perform a circular motion of clockwise rotation if it is right, and countless protrusions 5 are formed on the plate 1 surface of the sorting plate 1, The upstanding walls 7, ⁷³ in the longitudinal direction of the plate 1 are partially opened to form discharge ports 11, 12 on both sides, and the supply port is opened at the upper center of the sorting plate 1.
Rather than the conventional reciprocating motion W with impact, circular motion P without impact allows delicate sorting to be performed. Furthermore, since the discharge ports 11 and 12 are opened on both sides in the longitudinal direction, separation of materials having different specific gravity, such as brown rice and unhulled rice, is performed between the narrow width vertical walls 7 ¹ and 7 ² . , the brown rice grains are sufficiently piled up against the right standing wall ⁷¹ , and can be reliably separated. In this case, if the widths of the left and right upright walls 7 ¹ and 7 ² are made larger and the planar shape of the sorting plate 1 is made to face in the forward direction, it will take more time for the pushing surface 6 to reach the upright wall 7 ¹ . , the efficiency becomes poor and it becomes unsuitable for practical use.
In addition, since the discharge port 11 (discharge port for particles having a specific weight among different types of grains) serving as a discharge port for brown rice is partially opened on the side of the protrusion 5 that is fed sideways by the pushing surface 6, the brown rice can be taken out from there. Moreover, since the discharge port 12, which serves as a discharge port for paddy rice, has a small opening at the opposite corner, it is possible to easily take out the rice using separate take-out channels.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of the known example, Fig. 2 is a perspective view of the same, Fig. 3 is a longitudinal sectional front view of the second known example, Fig. 4 is an explanatory view showing defects in the known example, and Fig. 5 is the book. A perspective view of the sorting plate of the invention, FIG. 6A is a diagram of the first embodiment of the protrusion,
Figure B is a view of the second embodiment, Figure C is a direction view of the extrusion surface, Figure D is a modified view thereof, Figure 7 is a plan view showing the state of circular motion, and Figure 8 is a diagram showing the movement of grains. FIG. 9 is a perspective view showing the overall configuration, FIG. 10 is an explanatory view of the separation of grains on the sorting plate of the present invention, and FIG. 11 is a diagram of the rotation mechanism of circular motion. Explanation of symbols 1... Sorting board, 1'... Tray, 2...
...front side, 2'... rice grain, 3... rear side, 3'... standing wall, 4... front-back direction, 5... projection, 6... pushing surface, 7... front standing wall, 7 ¹ ... Right standing wall, 7
² ... Left standing wall, 7 ³ ... Standing wall provided on the rear side, 8... Frame, 9... Mounting piece, 10... Wire or hanging rod, 11... Discharge port, 12... Discharge port ,
13... Supply hopper, 14... Motor, 15
... Receiving control wheel, 16 ... Original control wheel, 17 ... Belt,
18... Vertical shaft, 19... Eccentric body, 20... Vertical shaft, 21... Upper end, 22... Bearing mechanism, A... Sorting plate, B... Protrusion, C... Supply side, D... Discharge Side, E, E′...standing wall, F...brown rice, G...unhulled rice, H...blank area, P...rotation direction of sorting plate,
P'...Direction of grain rotation, W...Direction of reciprocating movement of the sorting plate, X, X'...Direction of brown rice movement, t-t...Inclination direction of the pushing surface, t'-t'... direction of inclination,
v...Inclination angle.

Claims (1)

[Claims] 1. One longitudinal side of the sorting plate 1 is the front side 2, and the other side is the rear side 3. A standing wall 7 and a standing wall ⁷³ are provided on the front side 2 and the rear side 3, respectively, and a right side is provided on the right side of the sorting plate 1. A left standing wall ⁷² is provided on the left side of the standing wall ⁷¹ , and countless protrusions 5 each having a pushing surface 6 capable of pushing the grain in ^one direction are formed on the sorting plate 1. The sorting plate 1 is configured to make a clockwise circular motion P when viewed from above, and has a discharge port 12 for particles having a small specific gravity formed at the corner of the front upright wall 7 and the left upright wall ⁷² . At the corner of the rear standing wall 7 ³ and the right standing wall 7 ¹ is an outlet 11 for discharging particles of relative importance.
A grain sorting device with a