JPS6350072B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rotary grain sorting device.

In other words, brown rice can be reliably and well sorted from the mixed rice after hulling, and it can be sorted with high accuracy by circulating it, and the single rotating sorting cylinder and its internal structure can provide good performance and be compact. It is provided to enable suitable implementation.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of the entire paddy husking sorter. Inside the long wind sorting box C, a No. 2 conveyor 5, a mixed rice conveyor 6, a paddy conveyor 7, and a brown rice conveyor 8 are installed. Suction port 1 of dust machine 9
0 and the respective intake ports 11 and 12 are connected to No. 2 conveyor 5, mixed rice conveyor 6, and brown rice conveyor 8.
A suction wind blows through the upper side, and a mixed rice thrower 13 and a brown rice thrower 14 are connected to the terminal ends of both conveyors 6 and 8, respectively, and a supply hopper 15 is installed above the other end of the wind sorting box C. Ya de-roll 1
6 is installed, and the upper part of the paddy thrower 17 connected to the paddy conveyor 7 is installed so as to communicate with the supply hopper 15.

A rotary grain sorting device E is installed above one end of the wind sorting box C. Each is supported by two sets of rotary wheels 19, 19, and presser rings 20, 20 are brought into contact with the upper side, and from one end of the rotary sorting cylinder A on the supply side A, it is slightly further away from the middle in the direction of the rotational axis of this rotary sorting cylinder A. A recess 1 large enough to fit brown rice is formed in the area closer to the end discharge side B, that is, the inner peripheral surface closer to one end, and a recess 1 is formed in the inner peripheral surface from this recess 1 to the other end discharge side B. Although a large number of recesses 2 each slightly larger than 1 are formed, the recess 2 may be formed so as to gradually become larger from the recess 1 side to the large recess 2 as shown in FIG.

Further, both ends of a V-shaped receiving gutter B installed inside the rotary sorting cylinder A are connected in the case 18, and a rotary shaft 21 mounted in the receiving gutter B has a shape corresponding to the recess 1. A spiral conveyor 3 is wound on one side, and a spiral conveyor 4 is wound on the other side corresponding to the large recess 2 so that they are fed in opposite directions.
A partition plate 22 is erected in the receiving gutter B between the two, and an extending portion is constituted by a gate valve b that extends to the side where the receiving gutter B is lifted by the rotary sorting cylinder A. Of the gate valve b constituting this extending portion, a portion corresponding to the inner circumferential surface forming the recess 1 is extended long so as to be close to this inner circumferential surface, and a long plate portion 2 is formed.
3, and a portion corresponding to the inner circumferential surface forming the large recess 2 is spaced apart from the inner circumferential surface and is formed into a short plate portion 24 shorter than the long plate portion 23. Furthermore, the gate valve b is constructed by operating a support shaft 25 attached to its base with an external adjustment tool 26 so that the rotation of the partition plate b can be adjusted. It may also be an extension formed integrally with the gutter B.

A tank 27 installed above one end of the case 18 is provided so as to communicate with the upper end of the mixed rice thrower 13, and a lower outlet 28 of the tank 27 is provided inward on the supply side of the rotary sorting cylinder A. A communication gutter 30 extending downward from the terminal end of the spiral conveyor 3 is installed so that the gutter 29 below the discharge side lower end of the rotary sorting cylinder A communicates with the upper part of the paddy conveyor 7. The lower part of the communication gutter 32 is installed so as to be continuous with the grain board 31 above the brown rice conveyor 8, and the lower part of the communication gutter 32 hanging down from the terminal end side of the spiral conveyor 4 is installed so that it extends above the mixed rice conveyor 6. Set and configure.

Therefore, when each rotary wheel 19 is driven to rotate, the rotary sorting cylinder A rotates as shown by arrow C due to frictional contact.

During operation, when paddy is supplied to the supply hopper 15, the mixed rice that has been removed by the hulling section D and winnowed falls into the mixed rice conveyor 6 and is jumped to the tank 27 by the mixed rice thrower 13. It is raised and fed into the feed side A of the rotary sorting cylinder A from the lower outlet 28 as it is.

Then, as shown by the arrow C, the brown rice is stuck in each recess 1 on the inner circumferential surface of the rotary sorting cylinder A, which rotates, and is lifted up as it rotates, and is brought to the tip of the long plate part 23 of the gate valve B. Recess 1 passes through a narrow gap with the inner circumferential surface of the cylinder as shown by arrow D.
The paddy is discharged into the receiving trough B, and the paddy slides down without being caught in the recess 1, and even if it is lifted up with a little force, it still remains within the space between the tip of the long plate 23 of the gate valve B and the inner circumferential surface of the barrel. When the mixed rice with a large proportion of paddy is transported in the direction of arrow H, the remaining brown rice is completely separated by the large recess 2. However, at the same time, the paddy is also easily engaged, and a part of the paddy is lifted together, and the brown rice and the paddy are moved within the wide space between the tip of the short plate part 24 of the gate valve b and the inner peripheral surface of the barrel. The mixture passes through sufficiently and falls into the receiving gutter B as it is, as shown by the arrow in FIG. 4.

The paddy discharged from the discharge side B of the rotary sorting cylinder A falls into the paddy conveyor 7 from the gutter 29 and is transferred to the paddy thrower 17.
The brown rice is thrown up into the hulling section D and circulated by the husking section D, and the brown rice that falls on the spiral conveyor 3 is conveyed in the direction of arrow H, and falls into the brown rice conveyor 8 from the communication gutter 30 via the grain board 31, and is sent to the brown rice thrower. The mixed rice that is taken out to the outside by 14 and dropped into the spiral conveyor 4 is carried out in the direction of the communication gutter 32 as shown by the arrow H, falls into the mixed rice conveyor 6, and is returned to the mixed rice thrower 13. It is jumped up into tank 27 and re-sorted.

Therefore, brown rice is prevented from remaining in the paddy and being rubbed twice by the hulling section D.

In this way, the present invention forms a large number of recesses large enough to fit brown rice on the inner peripheral surface of the rotary sorting cylinder near one end, and a large recess that is slightly larger than the recesses on the inner peripheral surface of the other end. A spiral conveyor is constructed in which the feeding direction of the parts corresponding to the concave portion and the large concave portion are reversed in the receiving gutter formed in large numbers and fixed in the rotary sorting cylinder, so that the lifting of the receiving gutter by the rotary sorting cylinder is carried out. Of the extended portion, the portion corresponding to the inner circumferential surface forming the recess is brought closer to this inner circumferential surface, and the portion corresponding to the inner circumferential surface forming the large recess is spaced apart from the inner circumferential surface. Therefore, the mixed rice after hulling is lifted near one end of the rotary sorting cylinder and discharged into the receiving trough to be taken out, while at the other end, some of the brown rice that cannot be lifted near one end is It has now been possible to provide a small-sized structure that can be lifted up together with the huller for cyclic sorting, and that only the paddy can be returned to the hulling section, allowing for good sorting accuracy and performance, and also preventing double-hulling. It's ivy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the entire huller sorter, FIG. 2 is a sectional view thereof, and FIG.
The figure shows a side sectional view of a part of FIG. 2, FIG. 4 shows a side sectional view of another part of FIG. 2, and FIG. 5 shows an axial inner view of a part of the rotary sorting cylinder. A...Rotating sorting cylinder, 1...Recess, 2...Large recess, B...Gutter, 3, 4...Spiral conveyor.

Claims (1)

[Claims] 1. A large number of recesses 1 large enough to fit brown rice are formed on the inner circumferential surface of one end of the rotary sorting cylinder A, and a number of large recesses 2, which are slightly larger, are formed on the inner circumferential surface of the other end. In the receiving gutter B fixedly installed in the rotary sorting cylinder A, there are spiral conveyors 3 and 4 in which the feeding directions of the parts corresponding to the recess 1 side and the large recess 2 side are reversed.
and bring a portion of the extending portion of the receiving gutter B lifted by the rotary sorting cylinder A, which corresponds to the inner circumferential surface forming the recess 1, close to this inner circumferential surface,
A rotary grain sorting device characterized in that a portion corresponding to the inner circumferential surface forming the large recess 2 is separated from the inner circumferential surface.