JPH0225670B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention provides a sorting method in which a large number of depressions are formed on the inner circumferential surface and one end is used as a supply side for grains to be sorted and the other end is used as a discharge side. A cylinder is rotatably hung horizontally, and a receiving gutter is installed inside the cylinder to take out the sorted grains scooped up by the recess, and the feed gutter is visible on the supply side inside the sorting cylinder. The present invention relates to a supply device for grains to be sorted in a rotary sorter.

(B) Conventional technology Conventionally, a sorting cylinder is rotatably mounted horizontally, with a large number of depressions formed on its inner peripheral surface, one end of which is a supply side for grains to be sorted, and the other end of which is a discharge side. A rotary sorting machine in which a receiving gutter is installed in the cylinder to take out the sorted grains scooped up by the recess, and the feed gutter is visible on the supply side inside the sorting cylinder is, for example,
It is publicly known as described in Japanese Patent Application Laid-open No. 13454 or Japanese Patent Application Laid-Open No. 52-56446.

However, the sorting cylinder in this type of rotary sorter is rotated at low speed in a substantially horizontal position or in a gently inclined position with the discharge side slightly lowered, so that the grains to be sorted are not continuous on the supply side. Because of this, grains to be sorted are piled up on the supply side, becoming bulky and often overflowing from the supply side to the outside of the sorting cylinder.

In addition, the grains to be sorted that are supplied from the supply gutter are fed first onto the fluidized bed of grains to be sorted that is formed on the inner peripheral surface by the rotation of the sorting cylinder. It has the disadvantage that the initial sorting effect due to scooping is not improved.

(c) Problems to be Solved by the Invention As described above, in the conventional rotary sorting machine, the grains to be sorted fed into the sorting cylinder are piled up on the supply side, becoming bulky and often being separated from the supply side. The phenomenon of overflowing to the outside of the sorting cylinder occurs, and the particles to be sorted supplied from the supply gutter are caused by the flow of the particles to be sorted that have been supplied first and are formed on the inner peripheral surface by the rotation of the sorting cylinder. Since the material is supplied on top of the layer, it has the disadvantage that the initial sorting effect by scooping up the hollows cannot be improved.The present invention solves these disadvantages and prevents overflowing to the outside of the sorting cylinder. In addition to preventing this, it also improves the initial screening effect.
In addition, we aim to improve the sorting accuracy by widening the adjustment range of the adjustment plate that divides the items scooped up by the recess into those that fall into the receiving gutter via the receiving side plate and those that do not. It was created with the purpose of

(d) Means for Solving the Problems Therefore, in order to achieve the above object, the present invention provides a structure in which a large number of depressions are formed on the inner circumferential surface, one end of which is a supply side for grains to be sorted, and the other end of which is a supply side for grains to be sorted. A sorting cylinder with a discharge side is rotatably suspended horizontally, and a receiving gutter is installed in this cylinder to take out the sorted grains scooped up by the recess, and a supply gutter is installed on the supply side of the sorting cylinder. The following technical measures were taken for the rotary sorting machine that was designed to achieve this goal. That is, the receiving gutter is provided in the lower central part of the sorting cylinder, and a receiving side plate is installed diagonally from one side of the receiving gutter toward the upper side of the sorting cylinder, and a receiving collecting plate is installed from the other side. An adjustment plate is provided that stands approximately vertically, and whose lower edge is pivoted to the upper end of the receiving side plate so that the standing posture can be changed, and the supply gutter is sorted along the back surface of the receiving collecting plate. The structure was designed to extend deep into the supply side of the cylinder.

(e) Effect With this configuration, for example, if mixed rice of brown rice and paddy is continuously fed deep into the feed side of the sorting cylinder from the feed gutter as grains to be sorted, this fed material will rotate. The inner peripheral surface of the sorting cylinder deviates to the upper side of the sorting cylinder and gradually moves to the discharge side while forming a fluidized bed. During this time, the mixing is caused by the scooping action of the depression formed on the inner peripheral surface. The unpolished rice falls over the adjustment plate into the receiving trough and is taken out from the trough, and the paddy quickly escapes from the depression and falls onto the fluidized bed without passing over the adjustment plate and is sequentially sent to the discharge side. From there, it is discharged and sorted into brown rice and paddy.

In this case, the mixed rice fed into the sorting cylinder becomes piled up and becomes bulky, and some of it flows back to the end of the supply side. Even what is supplied and flows backwards does not overflow outside the sorting cylinder.

In addition, the mixed rice to be supplied to the supply side is supplied by a supply gutter extending along the back surface of a receiving collecting plate that is erected from the other side of the receiving gutter provided at the center of the sorting cylinder,
The brown rice is supplied to the upper side of the fluidized bed without falling onto the fluidized bed formed by being deviated to the upper side of the sorting cylinder, and the brown rice is more likely to engage with the depressions and be scooped up. It works well.

Furthermore, in order to separate the items scooped up by the recess into those that fall into the receiving gutter and those that do not, the upright posture of the adjustment plate is changed and adjusted. The lower edge of the adjustment plate is pivoted to the upper end of the receiving side plate, which is installed lower in the center and diagonally installed from one side, to change and adjust the standing posture, so the adjustment range of the partition by the adjustment plate is wide. This will improve accuracy.

(f) Examples The present invention will be explained below with reference to the drawings of examples.
In addition, in the explanation in this text, the grain to be sorted will be described as a mixed rice of brown rice and paddy.

Reference numeral 1 denotes a sorting cylinder with a number of depressions formed on its inner circumferential surface, which is hung horizontally in an approximately horizontal position and rotated at low speed by an appropriate drive device (not shown), with one end facing the mixed rice supply side. X, the other end is the discharge side Y.
Reference numeral 2 denotes a receiving gutter, which is installed at a lower central portion of the sorting cylinder 1 over the entire length of the cylinder 1, and serves as a screw conveyor 3' for taking out the sorted brown rice.
is built-in. 3 and 4 are a receiving side plate and a receiving collecting plate that constitute the receiving gutter 2, and the receiving side plate 3 is installed obliquely from one side of the receiving gutter 2 toward the upper side of the sorting cylinder 1, and The collecting plate 4 is erected substantially vertically from the other side of the receiving gutter 2. 5 is the sorting cylinder 1
The lower edge is pivoted to the upper end of the receiving side plate 5, and the lower edge is pivoted to the upper end of the receiving side plate 5. It is configured so that it can be adjusted to change the standing posture. 7 is a mixed rice tank attached to the supply side X of the sorting cylinder 1, and a supply gutter 8 extends deep into the cylinder 1 from the lower end. When extending the supply gutter 8, the receiving collecting plate 4 is erected in a substantially vertical position as described above, and the mixture is mixed along the back surface 4' of the receiving collecting plate 4 which is set upright. It is opened a distance (β) deeper than the supply side X while maintaining the necessary angle (α) for the flow of rice. Also,
Reference numeral 9 denotes an overflow prevention wall formed by bending the supply side X end of the sorting cylinder 1 inward.

Next, to describe its operation, the sorting cylinder 1 is rotated at low speed in the direction shown by the arrow in FIG. If the mixed rice, which is sequentially introduced into the mixed rice tank 7, is continuously fed into the sorting cylinder 1 from the supply gutter 8 in an appropriate standing posture, the feed gutter 8 will be set at the required flow angle (α). This allows the fluid to smoothly flow deep into the supply side X of the cylinder 1. The vicinity of the opening of the supply gutter 8 is piled up and bulky due to the mixed rice that is continuously supplied, and some of the mixed rice is reversed from the opening of the supply gutter 8 toward the supply side X end. Although it starts to flow, since it is supplied deep by the distance (β), it does not overflow outside the sorting cylinder 1 even if it flows backwards. At this time, if there is an unexpectedly large amount of substances flowing back, the overflow prevention wall 9 will prevent the overflow.

In this way, the mixed rice that has flowed into the supply side During this time, due to the scooping action of the depression, the brown rice in the mixed rice falls over the adjustment plate 5 into the receiving trough 2 and is taken out, and the paddy falls onto the fluidized bed without passing over the adjustment plate 5. While repeating this process, it moves to the discharge side Y and is discharged.

In addition, the supply side X inside the sorting cylinder 1 is
The mixed rice flowing into the sorting cylinder 1 does not fall onto the fluidized bed that is formed by shifting to the upper side of the sorting cylinder 1, but instead is supplied to the upper side of this fluidized bed and reaches the hollow of brown rice. When the engagement of rice is promoted and some of the paddy falls over the adjustment plate 5 into the receiving gutter 2 due to the scooping action of the depression, or when brown rice is reduced and flows inside the sorting cylinder 1. is used to change and adjust the standing posture of the adjustment plate 5. The change and adjustment can be carried out by pivoting the lower edge of the adjusting plate 5 to the upper end of the receiving side plate 3 which is provided diagonally from one side of the receiving gutter 2 provided at the lower center in the sorting cylinder 1. Since the standing posture is changed and adjusted, the range of adjustment of the partition by the adjustment plate 5 is increased, and the accuracy of sorting brown rice and paddy is improved.

(G) Effects of the Invention As explained above, the present invention provides a sorting cylinder in which a number of depressions are formed on the inner circumferential surface, and one end is a supply side for grains to be sorted and the other end is a discharge side. In a rotary sorting machine that is rotatably mounted horizontally, and is equipped with a receiving gutter inside the cylinder for taking out the sorted grains scooped up by the recess, and also has a feed gutter visible on the supply side inside the sorting cylinder. , the receiving gutter is provided in the lower central part of the sorting cylinder, and a receiving side plate is provided diagonally from one side of the receiving gutter toward the upper side of the sorting cylinder, and a receiving collecting plate is omitted from the other side. An adjustment plate is installed vertically on each side, and its lower edge is pivotally connected to the upper end of the receiving side plate so that the standing position can be changed. Since the rice is configured to extend deep into the supply side of the sorting cylinder, the mixed rice supplied to the supply side of the sorting cylinder becomes piled up and becomes bulky, and some of the rice flows back to the end of the supply side. However, by erecting the receiving collecting plate approximately from the other side of the receiving gutter, the feeding gutter can be extended deep along the back side of the receiving gutter, and the mixed rice to be fed can be sorted outside the cylinder. In addition, the mixed rice supplied to the supply side is supplied by a supply gutter that extends along the back side of the receiving collecting plate that is erected from the other side of the receiving gutter provided in the center of the sorting cylinder. As a result, the brown rice is supplied to the upper side of the fluidized bed without falling onto the fluidized bed formed by being deviated to the upper side of the sorting cylinder, and the brown rice is not engaged with the depressions. It is possible to enhance the initial sorting effect by scooping up. Furthermore, the adjustment plate for dividing the items scooped up by the recesses into those that fall into the receiving gutter and those that do not fall into the receiving gutter is installed in the lower part of the receiving gutter in the center of the sorting cylinder. The lower edge is pivoted to the upper end of the receiving side plate that is installed diagonally from the side to change and adjust the standing posture, so the receiving side plate and adjustment plate can adjust the flow rate necessary for the brown rice to fall into the receiving gutter. By changing the upright position of the adjusting plate while maintaining the slope, the height displacement of the upper end of the adjusting plate can be set to a large extent, and the range of partition adjustment by the adjusting plate becomes large, which improves the sorting accuracy. It has also become possible.

[Brief explanation of drawings]

The drawings are for illustrating embodiments of the present invention, and FIG. 1 is a longitudinal sectional side view showing the main parts, and FIG. 2 is a longitudinal sectional view seen from the supply side. X... Supply side, Y... Discharge side, 1... Sorting cylinder, 2... Receiving gutter, 8... Supply gutter, 3... Receiving side plate, 4... Receiving collecting plate, 5... Adjusting plate , 6... Pivot, 4'... Back side.

Claims (1)

[Claims] 1 A sorting cylinder 1 with a large number of depressions formed on its inner peripheral surface, one end of which is a supply side X for grains to be sorted and the other end a discharge side Y, is rotatably mounted horizontally. A receiving gutter 2 for taking out the sorted grains scooped up by the above-mentioned recess is installed inside, and a supply side X inside the sorting cylinder 1 is installed.
In a rotary sorting machine in which a supply gutter 8 is seen, the receiving gutter 2 is provided at a lower central part of the sorting cylinder 1, and the receiving gutter 2 is directed from one side to the upper side of the sorting cylinder 1. The receiving side plate 3 is installed diagonally, and the receiving collecting plate 4 is erected almost vertically from the other side, and the lower edge is pivoted 6 to the upper end of the receiving side plate 3, so that the standing posture can be changed. A regulating plate 5 is provided, which receives the supply gutter 8 and aligns the sorting cylinder 1 along the back surface 4' of the collecting plate 4.
A device for supplying grains to be sorted in a rotary sorter, characterized in that it extends deep into the supply side X of the rotary sorter.