JPS6391180A - Rotary type cereal grain selector - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention involves de-sexing paddy using a de-sexing device, and then separating brown rice from the removed rice (a mixture of paddy and brown rice) by JW. This invention relates to the structure of a rotary grain sorting device that allows grains to be taken out.

[Conventional technology and its problems]

In recent years, as a sorting machine for sorting and taking out brown rice from the fallen rice after descaling, a rotary sorting machine with a brown rice catcher installed in a horizontal rotating sorting barrel with many recesses formed on the inner circumferential surface has been developed. was developed.

This rotary sorting machine is based on the prior art published in Japanese Unexamined Patent Publication No. 59-2222.
As disclosed in Publication No. 81, etc., dehulled rice (a mixture of paddy and brown rice) is fed into a rotary sorting cylinder, and as the rotary sorting cylinder rotates, the scraped rice is scraped to a certain height. While moving to the discharge side of the rotary sorting cylinder while forming a fluidized bed that repeats the flow of being raised and then falling to the bottom, the brown rice that has fit into the recess is scraped up to a high position and falls,
Taking advantage of the phenomenon that paddy can only be raised to a height lower than the brown rice, the brown rice that has been raised to a high position and then falls is received by a brown rice receiving trough and taken out of the machine.

Therefore, unless the diameter of the rotating sorting barrel is above a certain level, it will be difficult to distinguish between the height at which only brown rice is sown and the height at which paddy is raked up, and in addition to the sorted brown rice, paddy will also be mixed into the brown rice receiving trough. As a result, the sorting accuracy decreases. Furthermore, if the rotary sorting cylinder has a small diameter and a short length, the fluidized bed formed within the rotary sorting cylinder will be thin and its length will be short, making it impossible to improve the sorting capacity. The disadvantage was that the length and diameter of the

The present invention provides a separate sorting mechanism for sorting brown rice from the fluidized bed formed in the sorting barrel by utilizing the internal space of the rotary sorting barrel, thereby making the rotary grain sorting device more compact. The aim is to provide a device with significantly improved sorting capabilities.

[Failure to solve the problem]

Therefore, in the present invention, a rotary sorting cylinder having a plurality of recesses formed in its inner circumferential surface is installed horizontally, and a means for supplying the scraped rice from the descaling device is provided at one end of the rotary sorting cylinder. Inside the rotary sorting cylinder, at the bottom of the rotary sorting cylinder on the opposite side to the scraping up side of the fallen rice, there is brown rice that is used to receive the brown rice that is scraped up and dropped by the rotary sorting cylinder and to take it out of the machine. A receiving gutter is disposed along the longitudinal direction of the rotary sorting cylinder, and inside the rotary sorting cylinder there is a part where a fluidized bed of the fallen rice is formed on the scraping side of the fallen rice, and a part where the brown rice is formed. An example of a receiving gutter. A plurality of disks each having a plurality of recesses formed on the surface where brown rice fits are provided at appropriate intervals on a rotating shaft along the longitudinal direction of the rotating sorting cylinder, and the rice is scooped with each of the disks. The structure is such that the raised brown rice is discharged onto the upper side of the brown rice receiving trough.

[Action/effect of the invention]

According to the present invention, since the brown rice catcher is disposed inside the rotary sorting cylinder along its longitudinal direction, brown rice, which is the main stream of fallen rice that falls after being scraped up by the rotation of the rotary sorting cylinder, is removed. It can be caught in the brown rice catcher and taken out of the machine.

On the other hand, brown rice is also mixed into the fluidized bed of rice that is sown to a very high height and falls due to the rotation of the rotary sorting cylinder. If grains are returned to the hulling device or the like from the discharge side of the rotary sorting cylinder and then supplied again to the feed section side of the rotary sorting cylinder, the sorting ability will be reduced and the grains will be damaged more frequently.

However, according to the present invention, a plurality of discs each having a large number of concave portions of 11x of brown rice on the surface are used to remove the fallen rice that is formed on the sowing side of the fallen rice in the rotary sorting cylinder. The rotation direction of each disk is set between the place where the fluidized bed is formed and the plate of the brown rice receiving gutter, and the recess in the -1 part of the disc is the same as the one side of the brown rice receiving gutter. When the recesses on the surface of each disk pass through the fluidized bed, the brown rice that falls into the recesses falls downward from the upper half of the disk.
It is remarkable that the brown rice that has fallen away from the recess can be received by the surface of the receiving trough, which greatly improves the sorting ability and reduces the need to rub brown rice twice in the de-sexing device. It can be effective.

As described above, according to the present invention, the sorting ability can be greatly improved by adding disks, rather than relying only on the rotary sorting cylinder, and each disk is arranged in the inner diameter part of the hollow rotary sorting cylinder. Therefore, the external size of the sorting device itself is not significantly enlarged, and the device can be made more compact.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The rice hulling and sorting machine includes a horizontally long box-shaped wind sorting device 1, a hulling device 2 placed on the upper left surface of the wind sorting device 1, and the grain sorting device 1. The entire system is composed of a rotary sorting device 3 placed on the upper right side of the device 1.

The hulling device 2 includes a case 4 with a paddy supply hopper 5;
A pair of stripping rolls 6.7 provided in the case 4, a manually openable shutter 8 provided between the stripping rolls 6.7 and the paddy supply hopper 5, and a paddy supply amount regulating valve. , and a lead roll (both not shown), and the paddy supply amount regulating valve is configured to be rotated by an actuator.

The air selection device 1 includes a suction dust exhaust fan 12 at its left end and an atmospheric air intake L113 at its right side, and also includes a suction dust exhaust fan 12 from the atmospheric air intake L13.
Air passages 14 and 15 are formed, and in the middle of the air passage 15 from the air passage 14 to the suction and dust removal fan 12, there is a wind selection unit 16 for removing the scraped rice that falls from the hulling device 2. In the air passages 14 near the popular air intake port 13, wind sorting units 17 for brown rice from the rotary sorting device 3 are provided.

The fallen rice after the rice husks have been wind sorted by the fallen rice wind sorting section 16 is sent from the fallen rice gutter 19 with a spiral conveyor 18 to the rotary sorting device 3 by the thrower 20. The brown rice that has been sorted in the brown rice sorting section 17 is taken out of the machine by a thrower 22 from a brown rice gutter 21 with a spiral container 1.

On the other hand, the rotary sorting device 3 includes a rotary sorting cylinder 24 installed horizontally in a box-like case 23, and the rotary sorting cylinder 24 has a pair of left and right rollers 25 protruding from the inner surface of the box-like case 23.
, 25, and these rollers 2
5 is rotated by a variable rotation speed motor 26, so that the rotary sorting cylinder 24 is rotated at an appropriate speed in the right direction as shown by the arrow in FIG.

The rotary sorting cylinder 24 has one end farther from the hulling device 2 formed as an open type supply side 24a, and the other end closer to the hulling device 2 formed as an open type discharge side 24b. The inner surface of each body 24 is formed with a large number of recesses 27, each of which has a size large enough to fit brown rice.

Furthermore, a brown rice receiving trough 28 and a mixed rice receiving trough 30 are disposed within the rotary sorting cylinder 24 so as to extend in the axial direction of the rotary sorting cylinder 24, and are supported by the box-shaped case 23, respectively.

That is, inside the rotary sorting cylinder 24, there is a spiral conveyor 4.
A brown rice receiving trough 28 having 29 is provided at a lower position away from the sowing side of the fallen rice in the rotary sorting cylinder 24,
A mixed rice receiving channel 30 having a spiral conveyor 31 therein is located on the left side of the brown rice receiving channel 28, that is, at an upper position on the scraping-L side of the scraped rice in the rotary sorting cylinder 24.
It is mounted parallel to 8.

Note that the spiral conveyor 29.
31 is also rotationally driven by the motor 26 so as to transfer the grains in the gutter from left to right in FIG.

Of the left and right side plates of the mixed rice receiving trough 30 in the rotary sorting cylinder 24, the right side plate shown in FIG. A finishing adjustment plate 32 is attached to the upper end via a shaft 33 so as to freely swing in the rotational direction of the rotary sorting cylinder 24, and this finishing adjustment plate 32 is configured to be rotated by an actuator 34. There is.

Further, among the side plates 28a and 28b in the brown rice receiving trough 28, the right rear side plate 28b extends so as to approach the inner circumferential surface of the rotary sorting cylinder 24, and the left front side plate 28a extends inside the rotary sorting cylinder 24. It extends upward toward the lower surface of the mixed rice receiving trough 30 toward the side for scraping up the fallen rice. Therefore, the upper surface of the brown rice receiving trough 28 can receive the brown rice falling over the top of the finishing adjustment plate 32 in the mixed rice receiving trough 30, and the brown rice can be taken out of the machine.

It is located at a lower position of the mixed rice receiving trough 30, partially overlaps with the flow FiA formed by scraping up the fallen rice in the rotary sorting cylinder 24, and is cut in the front plate 28a of the brown rice receiving trough 28. The rotary sorting cylinder 2 is inserted so as to fit into the notch groove 35.
Between the part where a fluidized bed of fallen rice is formed in 4 and one side of the brown rice receiving trough 30, there is a recess 36 on the surface (in the embodiment, a circular plate) into which the brown rice fits but not the paddy. A large number of disks 37 are provided on the rotary shaft 38 along the longitudinal direction of the rotary sorting cylinder 24 at appropriate intervals, and the brown rice scooped up in the recess 36 of each disk 37 is placed in a brown rice receiver. Gutter 2
It is configured so that it is emitted onto the upper surface side of 8.

In addition, below the thrower 20 for the dropped rice, there is a chute 3 for supplying the dropped rice lifted by the thrower 20 to the supply side 24a to the rotary sorting cylinder 24 &-J.
9 faces, and one end of the mixed rice receiving trough 30 has a mixed rice supply port 30a into the supply side 24a of the rotary sorting cylinder 24.
will be established.

Further, one end portion of the brown rice receiving trough 28 in the rotary sorting cylinder 24 is connected to the brown rice sorting section 17 through the outlet shoes 1 to 40.
It communicates with the supply gutter 41.

1/1 outlet side 24 of the rotary sorting cylinder 24. The end portion b communicates with the paddy supply hopper 5 in the hulling device 2 via the thrower 42.

In this configuration, when paddy is fed into the paddy supplying bomber 5 in the hulling device 2 during the de-sexing and sorting work of paddy, the fallen rice that has been de-sexed in the hulling device 2 is transferred to the grained rice sorter directly below it. After the rice husks are removed in section 16, the rice sluice 1
9, and from there, the dropped rice passes through the thrower 20 and the chute 39 to the supply side 24-a in the sorting cylinder 24.
is supplied to

The fallen rice supplied into the sorting cylinder 24 is sown up to a height determined by the rotation of the sorting cylinder, and after falling down to the bottom, it repeats the flow, forming a flow ff1A with a thickness of 1.
The liquid is transferred toward the outlet side 24b. In the course of this fluid transfer, the brown rice in the sliding rice is lifted up to a relatively high position in a state of 11 y in the four parts 27 and then falls, and the paddy among the sliding rice falls from a lower position than the brown rice. By doing this, a small amount of paddy enters the mixed rice receiving trough 30 together with brown rice, and only the brown rice that has jumped over the finishing adjustment plate 32 in the mixed rice receiving trough 30 enters the brown rice receiving trough 28. .

Further, the brown rice that fits into the recess 3G in the disk 37 that rotates with a part of the flow NA in the rotary sorting cylinder 24 is scooped up by the rotation of the disk 37, and is removed from the recess 36 at the point where it rotates downward. The brown rice that has fallen away is also stopped by the brown rice receiving gutter 28, and the brown rice that has entered the brown rice receiving gutter 28 in this way is transferred to the outlet, -) 40 and the supply gutter 4.
1 to the brown rice sorting section 17, where it is finished and sorted to remove small grains, and then taken out of the machine by the thrower 22. The brown rice enters the mixed rice receiving trough 30 and is roughly sorted, and together with the scraped rice from the hulling device 2, it is sent to the rotating sorting cylinder 24 again.
The sample is returned to the supply side 24a in the interior and subjected to the sorting action again.

Further, the fallen rice moving inside the rotary sorting cylinder 24 toward its discharge side 241 is sorted along the way so that the brown rice enters the brown rice receiving gutter 28 and the mixed rice receiving gutter 30 as described above. Therefore, as it approaches the output side 24b of υ1, it becomes almost only paddy, and the discharged paddy from the discharge side 24)) of the rotary sorting cylinder 24 enters the paddy supply popper 5 which enters the hulling device 2 via the thrower 42. After being reduced, the de-sexing action is performed again in the hulling device 2.

In this way, according to the present invention, the action of sowing and sorting by the cylindrical rotary sorting cylinder and the rotary sorting cylinder 2
The brown rice scooped up by the concavity of the disk 37 partially overlapping with the fluidized bed A in 4 is transferred to the brown rice receiving trough 28.
The waste can be collected and sorted at the machine, and the sorting capacity can be greatly improved.

In addition, the disk 37 in the present invention may be in the shape of a disk having a plate surface up to the vicinity of the rotation axis -13=38,
Alternatively, the inner diameter portion may be formed into a so-called dona-socket shape, such as a so-called annular plate shape, in which the inner diameter portion is simply connected to the rotating shaft 38 by spokes.

Further, the upper and lower rotary sorting cylinders 24 are arranged in two rows, and the upper and lower rotary sorting cylinders 24 are arranged in such a manner that the materials that have been sorted by the two-stage rotary sorting cylinders 24 are finished sorted by the lower rotary sorting cylinders 24. Needless to say, the disk 37 may be disposed inside.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of the device, and FIG. 2 is a sectional view taken along the IT-]I line in FIG. 1. 2... Hulling device, 3... Rotary sorting device, 24
... Rotating sorting cylinder, 27 ... Recess, 26 ...
Motor, 28...Brown rice catcher, 28a, 28b...
・Side plate, 30... Mixed rice catcher, 32... Finish adjustment plate, 35... Notch groove, 36... Recess, 37
... Disc, 38 ... Rotating shaft.

Claims (1)

[Claims] (1) A rotary sorting cylinder having a large number of recesses formed in its inner circumferential surface is installed horizontally, a means for supplying the scraped rice from the removing device is faced at one end of the rotary sorting cylinder, and the rotary sorting Inside the cylinder, at the bottom of the rotary sorting cylinder on the opposite side to the scraping up side of the fallen rice, there is a
A brown rice receiving gutter is disposed along the longitudinal direction of the rotary sorting cylinder to catch the brown rice that is scraped up and dropped by the rotary sorting cylinder and take it out of the machine. Between the place where a fluidized layer of fallen rice is formed on the scraping side of the rice and one side plate of the brown rice receiving trough, a disk with a number of recesses formed on its surface into which brown rice fits is rotated and sorted. A rotary grain sorter characterized in that a plurality of disks are provided at appropriate intervals on a rotating shaft along the longitudinal direction of the body, and the brown rice scooped up by each disk is discharged to the upper surface side of a brown rice receiving gutter. Device.