JPH019662Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, a sorting cylinder having a number of depressions formed in its inner peripheral surface is rotatably hung horizontally, and grains to be sorted are gradually transferred from one end to the other end. In the case of a cylindrical rotary sorter that separates different types of grains, the grains to be sorted are continuously supplied to one end of the sorting cylinder and are left to naturally migrate toward the other end. The thickness of the layer of grains to be sorted flowing and migrating on the surface becomes thinner from one end to the other, making it impossible to expect a uniform sorting action over the entire width of the sorting cylinder.

For this reason, the applicant has taken various measures to ensure that the thickness of the layer of grains to be sorted that flows and migrates on the inner circumferential surface of the sorting cylinder is approximately uniform over its entire width, thereby improving sorting accuracy and efficiency. Improvements have been made in the past, but sufficient results have not been obtained and the structure has had to become complicated.

Therefore, in order to eliminate the above-mentioned drawbacks, the present invention provides an appropriate space between the sorting tube and the sorting tube on the upper side in the rotating direction of the sorting tube at one end side or over almost the entire width of the sorting tube. A leaning and slanted bottom plate,
A transition plate consisting of a slanted plate is provided on this bottom plate with its lower part displaced toward the other end, and the upper edge of the bottom plate is gradually lowered from one end to the other end. He devised a fluidized grain transition plate for a cylindrical rotary sorter.

This invention will be described below with reference to embodiment figures. The embodiment shows an example in which a rotary sorter equipped with the present invention is incorporated as a huller. First, an overview of the huller as a whole is explained. (A) shows a tank containing a paddy tank 1 and a pair of derollers 2. (B) is a wind sorting section that wind-sorts the rice husks etc. that are removed by removing section A, and (C) is a rotary sorting section, both of which have a large number of depressions a on their inner peripheral surfaces. One end side
and the other end Y of the sorting cylinders 3 and 4, which are horizontally suspended so that they can be rotated by rollers, gradually flow the fallen rice (mixed grains of brown rice and paddy) from one end side X to the other end side Y. During the drying process, the brown rice, which has smaller grains than normal paddy, is made into a hollow a.
A primary rotary sorting section Ca and a secondary rotary sorting section Cb, which mainly scoop up and take out the materials respectively, are arranged above and below. And the primary rotary sorting section located in the upper stage
The brown rice scooped up to the highest level by the sorting cylinder 3 in Ca passes through the rice sorter E and is combined with the brown rice scooped up in the secondary rotary sorting section cb, and is scooped into the range from the high level to the middle level. The raised brown rice and paddy are supplied from the supply gutter 5 to the sorting cylinder 4 of the secondary rotary sorting section Cb to be subjected to the sorting action again, and the paddy that cannot be scooped up is returned to the paddy tank 1 from the other end Y. I am trying to get rid of it again. In addition, the brown rice scooped up by the sorting cylinder 4 of the secondary rotary sorting section Cb and the brown rice that has passed through the rice sorting machine E from the primary rotary sorting section Ca are combined and left out of the machine after wind sorting. The rice that has been taken out at the appropriate location and cannot be scooped up by the secondary rotary sorting section Cb is merged with new dropped rice. D stands on the left side of the grain lifting machine, and a dropped rice transfer gutter 6 constitutes a transfer device so as to supply the dropped rice to one end side X of the primary rotating sorting section Ca via the transfer device. A supply port 7 is opened at one end side X of the.

Next, F is a transition plate that directs the scraped rice supplied to the inner circumferential surface of the sorting cylinder 3 of the primary rotary sorting unit Ca toward the other end side Y, and promotes its transfer. Side X has a length L longer than the length l of the other end side Y, and the upper edge 8 gradually reduces in length from one end side Sa l
The bottom plate P is bent at an obtuse angle T toward the inside of the sorting cylinder 3 along a line 11 connecting the middle part 9 and the lower end 10 of one end side X, and a bent part Q is formed therein. It consists of several swash plates R standing on the bent portion Q of the bottom plate P with the lower part displaced toward the other end side Y. The transition plate F is provided obliquely on the upper side of the sorting cylinder 3 in the rotating direction (indicated by arrows in the second, third, and fourth figures) with an appropriate distance from the inner peripheral surface of the sorting cylinder 3. .
Therefore, the upper edge 8 and the lower edge 1 at one end side X of the bottom plate P
The distance H at the intermediate portion from 0 is large, and the distance h at the other end Y is small.

Therefore, the fallen rice (mixed grains of brown rice and paddy) that falls onto the inner peripheral surface of the sorting cylinder 3 from the supply port 7 opened at one end side X of the fallen rice transfer gutter 6 of the transfer device rotates. Under the scooping action of the depression a, it deviates to the upper side in the direction of rotation shown by the arrow, and while the lower layer is lifted up and the upper layer collapses in the opposite direction, it gradually moves up and down to the other end Y. It will move to . During the above-mentioned flow process, the paddy floats mainly due to the difference in surface smoothness and specific gravity, and the brown rice sinks, and the upper layer is occupied by paddy and the lower layer is occupied by brown rice, making it easier for the brown rice to fit into the depression. Therefore, the fallen rice that falls from the supply port 7 onto the inner circumferential surface of the sorting cylinder 3 rises when it falls and moves in the direction of rotation in a bulky state M as shown in Fig. 3. However, the distance H between this part of the bottom plate P and the inner circumferential surface of the sorting cylinder 3 is configured to be large, so that it can move in the rotating direction and be lifted without interfering with the fallen rice. In this state, it is moved to the other end side Y.

In addition, when it is moved in the rotational direction in this bulky state M, it is lifted up to a greater extent than other parts, as shown by N in FIG. When this lifted fallen rice is lowered, several swash plates R are installed on the bending part Q.
As the scooping action of the depression a progresses, it gradually draws a downward line as shown at Na.

Incidentally, the deviation flow of the fallen rice near the middle part 9 of the bottom plate P is in a state as shown in FIG. 4.

Further, although the bottom plate P in the above-described embodiment is provided over almost the entire width of the sorting cylinder 3, it is not limited to the entire width, but may be provided on one end side or halfway.

As described above, the present invention consists of a sorting cylinder having a large number of depressions formed on its inner circumferential surface, which is rotatably hung horizontally, and grains to be sorted are gradually transferred from one end to the other end, so that the particles are gradually transferred from one end to the other. In a cylindrical rotary sorting machine that sorts out dissimilar grains by a scooping action, on the upper side in the rotating direction of the sorting cylinder, there is a cylindrical rotary sorting machine which is connected to the sorting cylinder at one end side or over substantially the entire width of the sorting cylinder, as appropriate. A transition plate is provided, consisting of a bottom plate installed diagonally with an interval of Since the bottom plate of the transition plate is configured to be gradually lowered as the transition plate approaches the inner surface of the sorting cylinder, the particles to be sorted are scooped up and are guided to the other end by the swash plate as they descend. Therefore, a substantially uniform sorting action can be performed over the entire width of the sorting cylinder from one end side to the other end side, and the items scooped by the bottom plate should be taken out from the other end side. Since paddy is mainly scooped and forced transfer is performed, the probability of scooping up brown rice becomes greater and the effect on the sorting action is large.

In addition, since the upper edge of the bottom plate is formed to be gradually lower from one end to the other, the distance between the bottom plate and the periphery of the sorting cylinder at one end is large, so that when the fallen rice falls into the sorting cylinder, Even if it is lowered, moved in the rotational direction in a bulky state, and lifted up, it smoothly deflects and flows without any interference such as suppressing or restricting this movement, and gradually loses weight as it reaches one end. The upper edge of the bottom plate is scooped up and transferred to the other end in response to the amount of rice that has fallen off.

As a result, although the structure is simple, the deviation flow state of the grains to be sorted on the periphery of the sorting cylinder is carried out almost evenly and smoothly over the entire width, improving sorting accuracy and efficiency. We were able to make progress.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is an internal side view of the entire cylindrical rotary sorter of the present invention incorporated as a huller; Fig. 2 is a rear view of the main parts; Fig. 3 is an explanatory diagram of the action taken along the line A-A in Fig. 1, Fig. 4 is an explanatory diagram of the action taken along the line B-B of Fig. 1, and Fig. 5 is a view of the main parts of the present invention viewed slightly diagonally from inside one end side. FIG. 6 is an explanatory diagram of the operation of the main parts. a... hollow, 3, 4... sorting cylinder, X... one end side, Y... other end side, H, h... spacing, P... bottom plate, R... swash plate, F... transition plate , 8...upper edge.

Claims (1)

[Scope of utility model registration request] A sorting cylinder with a large number of depressions formed on its inner circumferential surface is rotatably mounted horizontally, and grains to be sorted are gradually transferred from one end to the other, and dissimilar grains are separated by the scooping action of the depressions. In a cylindrical rotary sorting machine for sorting, a cylindrical rotary sorter is provided on the upper side of the sorting tube in the rotating direction, and is diagonally installed at an appropriate distance from the sorting tube at one end side or over almost the entire width of the sorting tube. A transition plate consisting of a bottom plate and a slanted plate standing on the bottom plate with a lower part displaced toward the other end is provided, and the upper edge of the bottom plate is gradually lowered from one end to the other end. A fluidized grain transition plate in a cylindrical rotary sorter, characterized in that: