JPH024349B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a swing-type sorting device for unhulled rice and brown rice.

(Prior art) Conventionally, the shape of the sorting plate A when viewed from above is approximately square.
One side of the front and back sides of the sorting plate A is a supply side, the other side of the front and back is a discharge side, one side of the left and right sides is a swinging side E, and the other side of the left and right sides is a non-swinging side F, and the sorting board In A, the discharge side is tilted in the front and back direction lower than the supply side, and the left and right sides of the sorting plate 1 are horizontal (FIG. 3), or the non-swinging side F is tilted horizontally (FIG. 5). (Fig. 5) is adjustable, and the supply side, the swinging side E, and the non-swinging side F are provided with side walls that stand up at approximately right angles,
The plate surface of the sorting plate A has a protrusion D that has a high rocking side E.
(FIG. 1), and a swing-type sorting device for unhulled rice and brown rice is known, in which the sorting plate A is provided with an inclined reciprocating device in the W direction. In addition, in FIGS. 3 and 5, H is a supply hopper, I is an underframe, and the sorting plate A is a supporting rod J, J which is inclined with respect to the underframe I.
The shaft is fixed by an eccentric wheel K, and is swung in the W direction by an eccentric wheel K. L is the brown rice outlet, M is the mixed rice outlet, and N is the unhulled rice outlet. (Note: Japanese Patent Publication No. 34-8353 and Japanese Unexamined Patent Application Publication No. 49-84849 belong to this category.) In addition, the conventionally known Japanese Utility Model Publication No. 17097-1987 includes the following:
The shape of the sorting plate when viewed from above is approximately rectangular, one side of the front and back sides of the sorting plate is a supply side, the other side of the front and back sides is a discharge side,
One side of the left and right sides is a rocking side, and the other side of the left and right sides is a non-rocking side, the sorting plate has a discharge side lower than a supply side and is inclined in the front and back direction, and the left and right sides of the sorting plate are horizontal, The supply side, the swinging side, and the non-swinging side are provided with side walls that stand up substantially at right angles, the plate surface of the sorting plate is a mesh, and the sorting plate has a side wall that faces the swinging side. A rocking type sorting device for unhulled rice and brown rice is described which is equipped with a horizontal reciprocating device that moves faster when moving and slower when moving toward the non-rocking side.

Furthermore, Japanese Patent Publication No. 44-13969 describes a device for swinging in the direction of grain discharge.

(Problems to be Solved by the Invention) Figures 3 and 5 (same as in Japanese Patent Publication No. 34-8353 and Japanese Patent Application Laid-open No. 49-84849) are as follows:
The defect is that it tilts back and forth in the direction of the W arrow.

In the case of Figures 3 and 5, when rocking back and forth in the direction of arrow W, brown rice group B gathers on the rocking side E and unhulled rice G group gathers on the non-rocking side F due to the difference in specific gravity. The two are separated from each other. In Fig. 2, only brown rice B is distributed in the range indicated as m, and a mixture of unhulled rice G and brown rice B is distributed in the range indicated as m1.
The unhulled rice G is distributed in the range shown as m2, and m3 is a blank area caused by the oscillation. The known example shown in FIG. 4 and FIG. 5 is an improved example in which the blank part m3 is not generated, and the side wall E on the rocking side of the sorting plate A is lifted up as shown by the arrow to incline α This eliminates the blank area m3 and improves the sorting effect.

The defect in FIGS. 3 and 5 is that they perform diagonal up and down reciprocation in the direction of the W arrow. This is because the size of the sorting plates is at least 1 m in length and width, and they are stacked in five or more stages, so the total amount of grain on sorting plate A is at least 30 kg.
When this is moved up and down diagonally, considerable vibration occurs.

The one disclosed in Utility Model Publication No. 46-17097 is equipped with a horizontal reciprocating device that is faster when the sorting plate moves toward the rocking side and slower when it moves toward the non-rocking side, so the rocking is reduced. The horizontal reciprocating device has a defect in the horizontal reciprocating device, which is horizontal but the plate surface is a net point. Sorting cannot be done just by combining the screen and the quick return mechanism, and immediately after being fed from the supply hopper, the sorting plate is quickly moved to the rocking side (brown rice side), and the plate surface is covered with the screen. Because of this, there is slippage between the grain and the board surface, making it almost impossible to move the grain to the yoriyo side (brown rice side). As a result, it is not possible to shake the brown rice, which is essential for sorting. If brown rice cannot be shaken, it is not possible to separate the specific gravity of unhulled rice. In addition, since the sorting board is moved slowly to the non-rolling side (unhulled rice side), there is little slippage between the grains and the board surface, allowing the brown rice to return to its original state. Therefore, it is unenforceable.

Furthermore, the device disclosed in Japanese Patent Publication No. 44-13969 is a device that swings in the direction of grain discharge (in the present application, swings in a direction perpendicular to the direction of grain discharge), and therefore cannot perform specific gravity selection.

(Means for Solving the Problems) However, the latter rapid return reciprocating rocking can also be implemented with the following configuration, resulting in good sorting. This is because a protrusion 7 is formed on the plate surface, which is higher on the rocking side 5 and gradually lower on the non-rocking side 6, and when returning quickly, the sorting plate moves more toward the non-rocking side than when moving toward the rocking side. (The known example is the opposite).The non-swinging side 6 of the sorting plate 1 has a low horizontal inclination α and is adjustable.

Therefore, in the present invention, the sorting plate 1 has a generally rectangular shape when viewed from above, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and rear sides is a discharge side 3, and one side of the left and right sides is a swinging side. The sorting plate 1 has a discharge side 3 lower than the supply side 2 and is tilted in the front-rear direction, and the left and right sides of the sorting plate 1 are the non-rolling side 5. The non-swiveling side 6 has a lower left-right inclination α than the above, and the left-right inclination α is freely adjustable, and the supply side 2, the swinging side 5, and the non-swinging side 6 are provided with side walls 4 that stand up at approximately right angles. , a protrusion 7 is formed on the plate surface of the sorting plate 1, which is higher on the rocking side 5 and gradually lower on the non-rocking side 6; The structure is a swing type sorting device for unhulled rice and brown rice, which is equipped with a horizontal reciprocating device that moves slowly when moving toward the non-rocking side 6 and quickly when moving toward the non-rocking side 6.

(Example) An example of the present invention will be described with reference to the drawings.
is a sorting board. The sorting plate 1 is made of a thin metal plate, synthetic resin, or the like. The sorting plate 1 has a substantially rectangular shape when viewed from above. The sorting plate 1 has one front and rear side as a supply side 2, the other side as a discharge side 3, one side of the left and right sides as a rocking side 5, and the opposite side as a non-rocking side 6, and the discharge side 3 is for taking out grains. Although not attached to the feed side 2, the rocking side 5, and the non-rocking side 6, side walls 4 projecting upward are provided on the supply side 2, the rocking side 5, and the non-rocking side 6 to prevent the grains from spilling outside. As shown in FIG. 12, an inclined protrusion 7 is formed on the plate surface of the sorting plate 1, and is higher on the swinging side 5 and gradually lower on the non-swinging side 6. 26 is an inclined surface, and 27 is a vertical surface.

A supply hopper 8 is provided at an upper position on the supply side 2 of the sorting plate 1. The supply hopper 8 is on the rocking side 5
I may send it to you. Although the sorting plate 1 of the embodiment is shown in only one stage, it is free to form it in multiple stages. In the case of a multi-stage system, a distribution device is installed to distribute food evenly from the supply hopper 8 to the multi-stage sorting plates 1. Sorting board 1
is lower on the discharge side 3 and has a discharge flow angle β (FIG. 10). This discharge flow angle β is not an angle at which the grains are naturally rolled and discharged, but is an angle at which the grains are discharged while maintaining a layered structure by reciprocating in the left and right direction. The discharge flow angle β is adjustable.

The left and right sides of the sorting plate 1 have a horizontal slope α which is lower on the non-rocking side 6 than on the rocking side 5, and the horizontal slope α is adjustable. 28 and 29 are screw rods, 30 is a screw tube, and 31 is a screw thread.

An underframe 9 is provided below the sorting plate 1 with a vertical interval. On the underframe 9,
Bearings 10 and 11 are provided on the left and right sides (9th
), the lower ends of the support rods 12 and 13 are supported by bearings 10 and 11, respectively, and bearings 14 and 15 are provided on the lower surface of the sorting plate 1, and the upper ends of the support rods 12 and 13 are respectively supported. The shaft is fixed. Bearings 10, 11
As is clear from Figures 9 and 10,
Since a pair is provided at the front and rear, the underframe 9 and the sorting plate 1
means a total of 4 support rods 12, 12 and 13, 13
You will be supported by

One end of a rod 17 is fixed to a longitudinal shaft 16 which fixes the bearing 14 and the upper end of the support rod 12, and the other end of the rod 17 is fixed to the tip of a crank 18. The crank 18 is fixed to a driving shaft 19, and a pulley 20 is fixed to the driving shaft 19 (FIG. 10). In this case, the driving shaft 19
The position of the rod 17, etc., and the relationship between the sorting plate 1
A quick return mechanism (opposite to the above-mentioned known example) is adopted in which the sorting plate 1 moves quickly toward the non-rocking side 6 and moves slowly when the sorting plate 1 moves toward the rocking side 5. The forward movement is slowed down to shake the entire grain, and the backward movement is made faster so that the shaken grains are left behind.

In the figure, 21 is an unhulled rice outlet, 22 is a brown rice outlet,
23 is a mixed rice outlet, and 24 and 25 are partition plates.

(effect) Next, we will discuss the effect.

When the mixed rice of unhulled rice G and brown rice B is dropped and fed from the supply hopper 8 to the supply side 2 of the sorting plate 1 and the pulley 20 is rotated by the motor, the driving shaft 19 rotates and the driving shaft 19 is rotated as shown in FIG. The shaft 19 rotates to the left in the order of A→B→C→N→A. Then, when the crank 18 whose base is fixed to the driving shaft 19 is in the position A, the rod 17 is at its maximum extension, but when the crank 18 rotates to the position B, the support rod 12 becomes vertical. , When it rotates further and reaches the position C, the support rod 12 is tilted to the right to the maximum. Then, when returning to position A after passing through position D, the support rod 12 returns to its original position, but in this case,
Since the rotation angle from A to C, which is the backward movement, is smaller than the rotation angle from C to A, which is the forward movement, the sorting plate 1 moves toward the rocking side 5 as the support rods 12 and 13 move. It moved slowly, but when moving toward the non-rocking side 6, it moved quickly, and the first
Move as shown in Figures 3 to 18 to remove unhulled rice G and brown rice B.
It separates the

(Explanation of FIGS. 13 and 14) The state immediately after being supplied from the supply hopper 8 is as shown in FIG. In this state, the sorting plate 1
The left and right sides of the non-swinging side 6 have a lower left-right inclination α than the swinging side 5, and if the left-right inclination α is adjusted, when the sorting plate 1 moves slowly in the direction of the swinging side 5, the sorting plate 1 moves slowly, so there is almost no slippage between the grain and the plate surface, and since the protrusion 7 has a high rocking side 5, the resistance is strong, especially for grains that are in contact with the plate surface.
When the sorting plate 1 is carried in the 5 directions on the cradle side and the grading plate 1 stops at the cradle side 5, the grains tend to lean towards the cradle side 5 due to inertia, forming a high pile on the cradle side 5 ( (Situation shown in Fig. 14).

(Explanation of FIGS. 14 and 15) When the sorting plate 1 returns from the swinging side 5 to the non-swinging side 6, it moves quickly. Because the sorting plate 1 moves quickly and the protrusions 7 are low on the non-cracking side 6, slippage occurs between the grains and the plate surface, and the lower grain remains on the shaking side 5, clogging. Only the sorting plate 1 attempts to go to the non-rocking side 6, leaving the mountain behind. At this time, the unhulled rice G, which has floated to the upper layer due to its specific gravity, collapses due to the vibration and slides down the slope of the mountain, along with the brown rice B, and moves in six directions on the non-rocking side (the state shown in Fig. 15).

(Explanation of FIGS. 15 and 16) This is the same as in the case of FIG. 14, but since there is more brown rice B in the lower layer, if the sorting plate 1 moves slowly in the 5-way direction on the rocking side, the sorting Because the movement of the board 1 is slow and the protrusions 7 are facing in the 5-way direction on the rocking side, there is resistance, so there is no slippage between the brown rice B and the board surface, and the brown rice B, together with the sorting board 1, moves in the 5-way rocking side. Take it with you. Since the brown rice B and unhulled rice G in the upper layer are not in contact with the board surface, the proportion of them being carried in the five directions on the rocking side is small.

(Explanation of FIGS. 16 to 17) Same as the case of FIG. 15, but the sorting plate 1
When the rice B moves quickly in the direction 6 on the non-rolling side, because the sorting plate 1 moves quickly and the protrusion 7 is lower on the non-rolling side 6, the brown rice B and the board surface slip, causing the brown rice B to be shaken. Only the sorting plate 1 is moved to the non-rocking side 6 while being placed on the side 5. At this time, the upper layer of unhulled rice G slides down the slope of the mountain due to the vibration and moves to the non-rocking side 6. When this state is repeated, the unhulled rice G also comes into contact with the board surface.

(Explanation of FIGS. 17 to 18) Since the rocking continues without interruption,
Since the separated unhulled rice G is also in contact with the plate surface, it is shaken, but the contact resistance of the unhulled rice G with respect to the plate surface is smaller than that of brown rice B. Therefore, the unhulled rice G is not mixed with the brown rice B again.

(Effect) Conventionally, Figures 3 and 5 (same as those in Japanese Patent Publication No. 34-8353 and Japanese Patent Application Laid-Open No. 49-84849)
Because it was a tilted swing, there was vertical vibration. In this respect, the one disclosed in Publication No. 17097 is a horizontal swing, but the board surface is a net point. There is a defect in the horizontal reciprocating device which is slow when moving towards. In other words, it is not possible to sort the rice by just combining the net and the quick-return mechanism, and the sorting plate is moved quickly to the rocking side (brown rice side) immediately after being fed from the supply hopper, and the plate surface is Since it is a net, there is slippage between the grain and the board surface, making it impossible to bring the grain to the rocking side (brown rice side).
As a result, it is not possible to shake the brown rice, which is essential for sorting.
If brown rice cannot be shaken, it is not possible to separate the specific gravity of unhulled rice. In addition, since the sorting board is moved slowly to the non-rolling side (unhulled rice side), there is little slippage between the grains and the board surface, allowing the brown rice to return to its original state.
Therefore, it is unenforceable. In addition, special public relations
Since the device disclosed in Japanese Patent No. 13969 is a device that swings in the direction of grain discharge (in the present application, swings in a direction perpendicular to the direction of grain discharge), specific gravity selection cannot be performed.

However, in the present invention, the shape of the sorting plate 1 when viewed from above is substantially rectangular, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and back is a discharge side 3, and one side of the left and right sides is a swinging side. The sorting plate 1 has a discharge side 3 lower than the supply side 2 and is tilted in the front-rear direction, and the left and right sides of the sorting plate 1 are the non-rolling side 5. The non-swiveling side 6 has a lower left-right inclination α than the above, and the left-right inclination α is freely adjustable, and the supply side 2, the swinging side 5, and the non-swinging side 6 are provided with side walls 4 that stand up at approximately right angles. , a protrusion 7 is formed on the plate surface of the sorting plate 1, which is higher on the rocking side 5 and gradually lower on the non-rocking side 6, so that the sorting plate 1
This is a rocking type separation of unhulled rice and brown rice, which is equipped with a horizontal reciprocating device that moves slowly when the sorting plate 1 moves toward the rocking side 5 and quickly when moving toward the non-rocking side 6. Because of the structure of the device, protrusions 7 are formed on the board surface, with the rocking side 5 being higher and the non-rocking side 6 gradually being lower. When moving toward the approaching side, move quickly.By combining the sorting plate 1 with the non-swinging side 6 having a low left-right inclination α and being adjustable, good separation can be achieved as described above. .

[Brief explanation of drawings]

Fig. 1 is a partially enlarged cross-sectional view of a known sorting plate, Fig. 2 is a cross-sectional front view of the same sorting plate, Fig. 3 is a front view of a known sorting plate, and Fig. 4 shows the sorting plate with horizontal inclinations. 5 is a front view of the same, FIG. 6 is a front view of the present invention, FIG. 7 is a left side view of the same, FIG. 8 is a plan view of the same, FIG. 9 is a - sectional view, and FIG. Figure 10 is -
A cross-sectional view, Figure 11 is a front view of the quick return mechanism, and Figure 12 is a front view of the quick return mechanism.
The figure is a partial sectional view of the sorting plate, FIGS. 13 to 18 are explanatory diagrams of the operation, and FIG. 19 is a diagram of a second embodiment. Explanation of symbols, 1... Sorting plate, 2... Supply side, 3
...Discharge side, 4...Side wall, 5...Water side, 6...
Non-rocking side, 7... Inclined protrusion, 8... Supply hopper, 9... Underframe, 10... Bearing, 11... Bearing,
12... Support rod, 13... Support rod, 14... Bearing, 1
5...bearing, 16...shaft rod, 17...rod, 1
8... Crank, 19... Driving shaft, 20... Pulley, 21... Paddy rice outlet, 22... Brown rice outlet, 23... Mixed rice outlet, 24, 25... Partition plate, 26... Inclined Surface, 27... Vertical surface, 28...
Threaded rod, 29... Threaded rod, 30... Threaded tube, 31
...Hinge, α...Inclination angle, β...Discharge flow angle.

Claims (1)

[Claims] 1 The shape of the sorting plate 1 when viewed from above is approximately square, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and back sides is a discharge side 3, one side of the left and right sides is a rocking side 5, and the left and right sides are a supply side 2. The other side of the sorting plate 1 is a non-rocking side 6, and the sorting plate 1 has a discharge side 3 lower than the supply side 2 and inclined in the front and back direction, and the left and right sides of the sorting plate 1 are a non-rocking side 6 than the swinging side 5. side 6
has a low left-right inclination α, and the left-right inclination α is freely adjustable. Side walls 4 standing approximately at right angles are provided on the supply side 2, the rocking side 5, and the non-rocking side 6, and the sorting plate 1
A protrusion 7 is formed on the board surface, which is higher on the swinging side 5 and gradually lower on the non-swinging side 6. A rocking type sorting device for unhulled rice and brown rice equipped with a horizontal reciprocating device that moves quickly when moving toward the rocking side 6.