JPS62191086A - Sorting controller in rotary grain sorter - 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] [Field of Industrial Application] The present invention relates to a device for adjusting the sorting state of a rotary grain sorter for sorting brown rice from mixed rice after hulling. It is.

[Conventional technology]

A rotary sorting cylinder with a number of depressions formed on its inner circumferential surface is installed horizontally, and one end of the sorting cylinder has a supply section for a mixture of brown rice and paddy, and the other end has a paddy discharge section. A rotary grain sorter is disclosed in Japanese Patent Laid-Open No. 49-24746 as a prior art, in which a brown rice receiving trough with an open top surface extending in the axial direction of the sorting cylinder is disposed inside the sorting cylinder. It is disclosed in the publication No.

In this rotary grain sorter, the mixed rice supplied into the sorting cylinder is scraped up to a height by the rotation of the sorting cylinder, and then falls to the bottom, forming a fluidized bed while flowing to the discharge side. During the movement, the brown rice of the mixed rice is lifted up to a relatively high position while being stuck in the hollow and then falls, while the paddy of the mixed rice falls from a lower position than the brown rice. This is used to catch brown rice falling from a high position into a brown rice catcher and take it out. In this case, the height at which brown rice and paddy fall depends on the variety and/or moisture content, amount of supply, etc. Therefore, the publication as the prior art discloses that by adjusting the rotation of the brown rice receiving gutter in the rotational direction of the sorting cylinder, only brown rice enters the brown rice receiving gutter. I am proposing to do this.

[Problem that the invention seeks to solve]

However, since the brown rice receiving gutter is large and heavy, it is difficult to adjust the brown rice receiving gutter in this way in the rotating direction of the sorting cylinder. The structure that supports the brown rice receiving gutter so that it can be rotated is complicated, and the width of the opening in the rotating direction of the sorting cylinder in this brown rice receiving gutter is always constant. If the rotation is adjusted so that the side plate on the mixed rice scraping side in the body is lowered, the side plate on the opposite side from the mixed rice sowing side in the sorting cylinder will also rotate in the same direction, so that the mixed rice that fits into the recess will be rotated in the same direction. The small grains of brown rice lifted in this condition pass through the gap between the side plate on the opposite side to the side plate on the sowing side and the sorting cylinder without falling into the brown rice receiving trough, and are mixed rice again. There was a problem in that the sorting ability deteriorated due to the phenomenon of reverting to .

The present invention solves the problems of the adjustment device in the rotary grain sorter disclosed in the above-mentioned prior art publication, and also makes it extremely easy to adjust so that only brown rice enters the brown rice receiving trough. It was designed to be accurate.

[Means for solving problems]

Therefore, in the present invention, a rotary sorting cylinder having a number of depressions formed on the inner peripheral surface is installed horizontally, and a supply part for mixed rice of brown rice and paddy is provided at one end of the sorting cylinder, and a supply part for mixed rice of brown rice and paddy is provided at the other end of the sorting cylinder. In a rotary grain sorting machine, the rice grain sorting machine is equipped with a paddy discharge section at each side, and a brown rice receiving trough with an open top extending in the axial direction of the sorting tube is arranged inside the sorting tube. An adjustment plate having a rotational fulcrum at the upper end is provided at the upper end of the side plate on the mixed rice sowing side in the sorting cylinder among the left and right side plates extending into the receiving gutter so as to be freely adjustable in rotation in the rotational direction of the sorting cylinder. The rotation fulcrum of the adjustment plate is set at a position such that the distance between the upper end of the adjustment plate and the inner surface of the sorting cylinder gradually increases as the adjustment plate rotates upward.

[Action/effect of the invention]

In other words, with this configuration, in order for the brown rice lifted up while being fitted into the recess by the rotation of the sorting cylinder to enter the brown rice receiving gutter, it is necessary to reduce the mixing inside the sorting cylinder in the brown rice receiving gutter. It is only necessary to rotate the adjustment plate installed on the side plate on the rice sowing side, and there is no need to rotate the entire brown rice receiving trough unlike in the prior art, so it is possible to adjust the grain type and/or moisture content and supply of grain to be handled. Adjustment such that only brown rice enters the brown rice receiving trough can be made extremely easily in response to changes in the amount, etc., and the structure can be significantly simplified and the weight can be reduced.

Moreover, according to the present invention, it is possible to adjust so that only brown rice enters the brown rice receiving trough in response to changes in the variety of grain to be handled and/or moisture content, supply amount, etc., only by rotating the adjustment plate. Of the left and right side plates of the receiving trough, the position of the side plate on the side opposite to the mixed rice sowing side in the sorting cylinder does not displace during adjustment, and the upper end of the side plate on the opposite side is placed in the position where the mixed rice flows in the sorting cylinder. Since it can be permanently located at a more remote location, it can pass through the brown rice receiving trough without falling into it, as in the prior art, by adjusting to changes in the variety of grain handled and/or moisture content, supply amount, etc. In other words, the amount of brown rice that falls into the brown rice catcher can be prevented from greatly decreasing due to changes in the variety of grain handled and/or the moisture content supply amount, etc. You can improve your abilities.

On the other hand, when separating brown rice from mixed rice after culling into a brown rice receiving trough using a rotary sorting cylinder with many depressions formed on the inner circumferential surface, the grain length between brown rice and paddy is Due to the relatively small difference between the two, the brown rice and a small number of paddy in the mixed rice flowing in the sorting cylinder are lifted up to a high position as the sorting cylinder rotates, while being stuck in the depression. The grains are thrown diagonally downward from the surface and fall in a parabolic trajectory.At the beginning of the throw, that is, near the inner surface of the sorting cylinder, the distribution of particles is dense, making it difficult to sort. The grain distribution tends to become sparser as it moves away from the inner surface of the cylinder.

Therefore, when an adjustment plate is provided at the upper end of the left and right side plate of the brown rice receiving trough on the mixed rice scraping side in the sorting cylinder so as to be rotatably adjustable in the rotational direction of the sorting cylinder, the upper end of this adjustment plate is is located close to the inner surface of the sorting cylinder, as disclosed in British Patent No. 237312, for example, and the adjustment plate is located between the upper end of the adjustment plate and the inner surface of the sorting cylinder. In order to adjust the rotation while keeping the spacing approximately constant, it is necessary to separate paddy and brown rice in areas where the grain distribution is dense as described above, and by adjusting the rotation of the adjustment plate slightly, brown rice can be separated. Since the condition of entering the brown rice receiving gutter changes significantly, it is extremely difficult and uncertain to adjust the rotation of the adjustment plate so that only brown rice enters the brown rice receiving gutter.

In addition, the upper end of the adjustment plate may be
As disclosed in Specification No. 5, even when the adjustment plate is made to move closer to the inner surface of the sorting cylinder as it rotates upward, in the same way as described above, by adjusting the rotation of the adjustment plate, only brown rice can be removed. The joint that allows the rice to enter the brown rice receiving trough is extremely difficult and uncertain, and as the adjustment plate rotates upward, the distance between its upper end and the inner surface of the sorting cylinder becomes narrower. , the amount of brown rice entering the brown rice receiving trough decreases, resulting in a decrease in the ability to sort brown rice.

In contrast, in the present invention, the pivot point of the adjustment plate is set at such a position that the distance between the upper end of the adjustment plate and the inner surface of the sorting cylinder gradually increases as the adjustment plate rotates upward. With this configuration, the distance between the upper end of the adjustment plate and the inner surface of the sorting cylinder becomes gradually wider as the adjustment plate rotates upward. Located in the part where the distribution of grains becomes sparse as it rotates,
Paddy and brown rice can be separated in the area where the grain distribution is sparse.

As a result, the condition of entering the brown rice receiving channel does not change suddenly due to the rotation adjustment operation of the adjustment plate, so the operation to adjust the amount of brown rice entering the brown rice receiving channel as much as possible is extremely simple and easy. It is possible to do this accurately, and it is also possible to reliably avoid a decrease in the amount of brown rice entering the brown rice receiving trough and a decrease in the ability to sort brown rice.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a sorting cylinder housed in a box-shaped case 2, and a large number of depressions a are formed in the inner peripheral surface of the cylinder. The sorting cylinder 1 is supported in a substantially horizontal state on the upper surface of a plurality of rolling wheels 3 and 4 which are rotationally driven by an appropriate drive device (not shown), and these rolling wheels 3 and 4 rotate as shown in FIG. -Rotated in the direction indicated by the arrow in FIG. One end of the sorting cylinder 1 is formed on the supply side X, and the mixed rice of paddy and brown rice after hulling is fed into the supply side X from the supply hopper 5, while the other end of the sorting cylinder 1 is formed on the supply side X. Formed on the open discharge side Y,
A paddy discharge hopper 6 is visible at the lower part of the discharge side Y end.

Inside the sorting cylinder 1, a top-open brown rice receiving gutter 7 extending in the axial direction of the sorting cylinder 1 is provided over the entire length of the sorting cylinder 1.
．． At the upper end of the inclined side plate 8 on the left side of 9, that is, on the side for sowing mixed rice in the sorting cylinder 1, there is the box-shaped case 2.
An adjustment plate 11 is provided in the brown rice receiving gutter 7, which is rotatably operated in the rotational direction of the sorting cylinder 1 by a lever 10 on the outside of the brown rice receiving gutter 7. A rotary conveyor 12 is provided for conveying to a chute 13.

In addition, at the bottom of the sorting cylinder 1, on the discharge side, only at an appropriate length along the axial direction of the sorting cylinder 1, is there a diagonally upward direction in the same direction as the rotation direction of the sorting cylinder 1. An inclined sliding plate 14 is provided, and the sliding plate 14 is attached to two bracket plates 15 and 16 hanging down from the brown rice receiving trough 7.
Applicable? The lower end 14' and upper end 14'' of the Fi drop plate are fixed to the inner circumferential surface of the sorting cylinder 1 so as to be close to each other with narrow intervals P and Q.
This shows the ceramic plate facing the discharge side edge 1' with a narrow interval R.

Then, the rotation fulcrum 11a of the adjustment plate 11 relative to the brown rice receiving trough 7 is set at a distance L7 between the upper end of the adjustment plate 11 and the inner surface of the sorting cylinder 1! l<The configuration is such that the position increases gradually as the adjusting plate 11 rotates upward.

In this configuration, the mixed rice supplied to the supply side X in the sorting cylinder 1 is scraped up to a height created by the rotation of the sorting cylinder 1, and then falls to the bottom repeatedly, forming a fluidized bed. While being transferred toward the discharge side Y, the brown rice in the mixed rice is stuck in the depression a and reaches a relatively high position as shown by the arrow (A) in Figures 2 and 3. After being lifted up, the rice falls from the recess a into the brown rice receiving trough 7, and is taken out of the machine from the chute 13 at the other end of the spiral conveyor 12.

On the other hand, as the fluidized mixed rice in the sorting cylinder 1 is transferred to the discharge side Y, the brown rice is sorted into the brown rice receiving trough 7, so that the amount of paddy increases and the thickness of the fluidized bed becomes thinner. According to the embodiment described above, on the discharge side Y, the sorting cylinder 1
The mixed rice that has been raked up to the height created by the rotation of the
As shown by the arrow (b) in FIG. 3, it falls onto the upper surface of the sliding plate 14, slides down the upper surface of the sliding plate 14, and then gently flows down to the bottom of the sorting cylinder 1. ,
The phenomenon in which the mixed rice at the inner bottom of the sorting cylinder 1 dances upwards due to the ten rotations of the sorting cylinder 1 is due to the sliding plate 1 that is close to this.
It can be suppressed by the lower surface of 4.

Note that, as in the above embodiment, the discharge side end 1' of the sorting cylinder 1
If the amount of paddy discharged from the discharge side edge 1' is regulated by providing a paddy plate 17 facing with a narrow interval R, the fluidized bed on the discharge side Y can be maintained thickly, which is more effective. It is true.

As mentioned above, the height at which brown rice falls from the depression a due to the rotation of the sorting cylinder 1 changes depending on the moisture content, variety, etc., by adjusting the rotation of the adjustment plate 11. It is possible to adjust so that only brown rice can fit into the brown rice receiving trough 7, and the rotation fulcrum 11a of the adjusting plate 11 is connected to the upper end of the adjusting plate 11 and the inner surface of the sorting cylinder 1. By setting the position such that the distance between the adjustment plate 11 gradually increases as the adjustment plate 11 rotates upward, the distance between the upper end of the adjustment plate 11 and the inner surface of the sorting cylinder 1 becomes smaller than the adjustment plate 11. As the adjustment plate 11 rotates upward, it gradually becomes wider. In other words, the tip of the adjustment plate 11 is located in a part where the distribution of grains becomes sparse as the adjustment plate 11 rotates upward, and the distribution of grains becomes sparse. Paddy and brown rice can be separated at the part where the rice is fed into the brown rice receiving trough 7, and the state of entering the brown rice receiving trough 7 does not change suddenly by adjusting the rotation of the adjustment plate 11. Therefore, only brown rice enters the brown rice receiving trough 7. The adjustment operation can be performed extremely easily and accurately.

[Brief explanation of drawings]

The figures show embodiments of the present invention, with Figure 1 being a longitudinal sectional front view and Figure 2 being a longitudinal sectional front view.
The figure is a sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view taken along line B-B in Figure 1.
FIG. 4 is a sectional view taken along the line C--C in FIG. 1. 1... Sorting cylinder, 7... Brown rice catcher, X...
Supply side, Y...discharge side, 8.9...left and right side plates of the brown rice catcher, 11...adjustment plate, lla...rotational fulcrum of the adjustment plate.

Claims (1)

[Claims] (1) A rotary sorting cylinder with a number of depressions formed on its inner circumferential surface is installed horizontally, and one end of the sorting cylinder has a supply section for supplying mixed rice of brown rice and paddy, and the other end has a supply section for supplying rice mixed with unhulled rice. In a rotary grain sorter, the brown rice receiving trough is provided with a top-open brown rice receiving trough extending in the axial direction of the sorting cylindrical body, and the brown rice receiving trough is disposed within the sorting cylinder. At the upper end of the side plate on the mixed rice scraping side in the sorting cylinder among the left and right side plates,
An adjustment plate having a rotational fulcrum at its upper end is rotatably adjusted in the rotational direction of the sorting cylinder, and the rotational fulcrum of the adjustment plate is set at a distance between the upper end of the adjustment plate and the inner surface of the sorting cylinder. 1. A sorting adjustment device for a rotary grain sorter, characterized in that the adjustment plate is set at a position that gradually increases as the adjustment plate rotates upward.