JPS63116789A - Disk rotation 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 is designed to sort brown rice from mixed rice after hulling by rotating a plurality of disks each having a large number of recesses on the surface. The present invention relates to a grain sorting device.

[Conventional technology]

A rotating shaft is supported in a substantially horizontal manner within the sorting cell, and a plurality of donut-shaped disks each having a large number of recesses formed on one or both sides are provided on the rotating shaft at appropriate intervals in the axial direction;
The sorting cell is provided with a supply section for a mixed rice of paddy and brown rice at one end in the axial direction, and a paddy discharge section at the other end, and a brown rice receiving gutter is provided between each of the disks. A disk rotary grain sorting device comprising a rotary disk type grain sorting device has been proposed in Japanese Patent Application Laid-open No. 136688/1988 as a prior art.

In the disk rotating grain sorting device, the mixed rice fed into the sorting cell from the supply section at one end is lifted up to a height formed by the rotation of the disks in the area between the disks, and then falls. When the flow is repeated, the brown rice in the fluidized bed fits into the recess in the disk and falls from a high position. This is used to catch the brown rice falling from a high position into the brown rice receiving gutter and take it out. It is.

[Problem that the invention seeks to solve]

By the way, in this type of grain sorting device, if the grain type, grain size, or shape is different, the size or shape of the recess is changed so that the grain fits exactly. It is preferable to replace it with a disc formed by In addition, dust adhering to grains accumulates in the sorting cell, so it is necessary to clean it regularly.

However, in the grain sorting device of the prior art, the side plate in the sorting cell located perpendicular to the axis of the rotating shaft on which the disk is mounted and the cover body that covers the top surface of the disk are not removable and the cover body is disposed between the disks. Since the brown rice receiving trough is fixed to the side plate of the sorting cell, etc., it is not only impossible to remove the disk from the sorting cell, but also impossible to open the top surface of the disk.

Therefore, there was a problem in that cleaning inside the sorting cell was difficult.

The present invention aims to solve this problem.

[Means to solve the problem]

In order to achieve this object, the present invention supports a rotating shaft disposed substantially horizontally on both left and right side plates of a sorting cell, and a disk with a large number of recesses formed on the surface of the rotating shaft is mounted on the rotating shaft. In a rotary disk grain sorting device, in which a plurality of disks are provided at appropriate intervals, and the sorting cell is provided with a supply section for a mixed rice of paddy and brown rice, and a discharge section for paddy, one of the left and right side plates is provided. At least one side plate is configured to be detachable, and a brown rice receiving gutter provided between each of the disks is fixed to a top cover body that covers the top surface of the disks, and the top cover body can be opened and closed with respect to the sorting cell. It is designed to be flexible.

[Action/effect of the invention]

In this way, in the present invention, at least one of the left and right side plates that support the rotating shaft on which the disk is mounted is configured to be detachable, and the cover body that covers the top surface of the disk can be opened and closed with respect to the sorting cell. Since it is configured as
From the side plate removed, the disk alone or the disk and the rotating shaft can be moved along the axial direction and taken in and out of the body of the sorting cell.

Moreover, since the top surface of the disk can be exposed when the cover body is opened to the sorting cell, a larger work space is required when attaching and detaching the large diameter disk compared to a case where only the side plate is detachable. This greatly improves work efficiency.

Furthermore, since the brown rice receiving gutter to be disposed between each disk is fixed to the cover body, the brown rice receiving gutter can be removed all at once by simply opening the cover body so as to reach from between the disks. Its workability is further improved.

Furthermore, since the brown rice receiving trough is removed from the sorting cell together with the cover body, the inside of the sorting cell can be opened wide after the disks are removed, and cleaning of the interior thereof becomes extremely easy.

In addition, if the cover body to which the brown rice receiving gutter is attached is configured to open and close around the hinge part that rotates around the shaft opening parallel to the axis of the rotating shaft, the cover body will move a large amount. It also has the effect that the brown rice catcher disposed between the disks does not interfere with the disks.

As described above, according to the present invention, at least the disk can be easily taken in and out of the sorting cell, and the disk can be easily replaced depending on the type and size of grains, and the sorting cell can be easily removed. This has the remarkable effect of making it easier to clean, inspect, and repair the inside of the cell.

〔Example〕

Below, the drawings of an embodiment in which the present invention is applied to a grain sorting mechanism in a rice hulling sorting machine will be explained. The disk rotary sorting device l winds the hulled rice after desiliconization in the hulling section (not shown). After being sorted into rice husks and mixed rice in the sorting process, the mixed rice is sorted into brown rice and paddy by a disk 11 arranged horizontally in the body 2C of the sorting cell 2, and at least the sorting cell 2 The lower half of the body part 2C is formed into a substantially cylindrical shape, and the sorting cell 2 has a supply part 4 on the upper part of the body part 2C at a position closer to the negative side h2a, and a discharge part 5 on the other side plate 2b.
are drilled in each side, and the other side plate 2b is attached to the body 2c of the sorting cell via bolts 14 or the like so that it can be attached freely.

Reference numeral 3 denotes a cover body having a downward U-shaped cross section that covers the upper surface of the disk 11 and the sorting cell 2, and includes the body 2c of the sorting cell 2 or its outer plate 20. One side edge of the cover body 3 is fixed to a hinge 21 that can rotate around an axis parallel to the axis of a rotating shaft 10 (described later), and the lower end of the other side edge of the cover body 3 is in contact with the upper end of the outer plate 20b. In this state, it can be locked with the locking hook 22.

Further, a mixed rice thrower from the wind sorting section is connected to the hopper 6 connected to the supply section 4, while the paddy discharged from the discharging section 5 is transferred to the discharging section 5. A reflux chute 7 is connected for reflux into the feed hopper.

Further, on the bottom surface of the body 2c of the sorting cell 2, a residual rice discharge valve 9 is provided so as to be openable and closable.

Inside the sorting cell 2, a rotating shaft 10, which is rotationally driven at an appropriate speed by a motor, is supported on both left and right side plates 2a, 2b'i parallel to the axis of the sorting cell 2.
A plurality of donut-shaped disks 11 are provided at appropriate intervals in the axial direction, each having a large number of recesses 12 carved into one or both sides of which the brown rice fits, but the paddy does not. (However, the drawing shows a case where recesses 12 are carved on both sides of the disk 11).

Each of the disks 11 is fitted into the center hole of its boss portion 11a so as to rotate integrally with the rotating shaft 10, which has a rectangular cross-section or is spline-molded, and the length of each boss portion 11a is the same as that of the adjacent disk. 11 are set apart by a predetermined interval, and the nuts 16 are set on the inner side of the other side plate 2a.
By tightening the nut 16 and removing the nut 16, each disk 11 can be attached and detached in the axial direction of the rotating shaft 10. Note that a plurality of disks 11 may be fixed to the longitudinal boss portion 11a.

In these cases, the free end of the rotating shaft 10 may be supported by two auxiliary bearings 17 on the other side plate 2b, or the other side plate 2b may be formed into two halves vertically or horizontally. Furthermore, the free end of the rotating shaft 10 may not be supported by the other side plate 2b.

Note that each of the multiple recesses 12 in each disk 11
is a semicircular shape in which the circumferential length of the disk 11 is larger than the radial width S of the disk 11, as shown in FIGS. 3 to 5. S is set to be smaller than the length dimension of the brown rice and larger than the width dimension of the brown rice.
Inner surface 12a located on the front side with respect to the disk rotation direction
is formed into an inclined surface with an appropriate angle θ (for example, about 15 degrees), and the length L1 from the intersection of the inclined inner surface 12a and the bottom surface 12C to the other inner surface 12b is the length dimension of brown rice. , each of the above lengths is set to an intermediate length between the length of brown rice and the length of paddy, and the recess 12
The depth T is set to be approximately equal to the diameter of brown rice.

The above-mentioned dimensions of the recess 12 in the disk 11 to be replaced can be set to suitably correspond to the size and type of grain.

A brown rice catcher 13a is provided between the disks 11 and between the disks 11 and the side plates 2a and 2b of the sorting cell 2.
, 13b are inserted diagonally (tJ), the upper end of each brown rice receiving gutter faces the side where the brown rice is lifted by the disk 11, and the lower end of each brown rice receiving gutter 13a, 13b is inserted into the brown rice style selection from the brown rice take-out chute 15. (not shown).

The brown rice receiving gutter 13a arranged between these brown rice receiving gutter 13b and each disk 11 has a lower end portion near each disk 11.
It is fixed to the inner surface of the cover body 3 via a bracket plate 18 extending outward from the outer periphery of the cover body 3.

At this time, only the brown rice receiving trough 13b on the inner surface of both side plates 2a and 2b of the sorting cell 2 may be fixed to each side plate.

Reference numeral 19.19 denotes a brush body which is arranged to extend in the radial direction above the brown rice receiving trough 13 between each disk 11, and has the tip of the bristles in sliding contact with the recess 12 on the surface of each disk. In the embodiment, each brush body 19 is formed into a cylindrical shape, and is rotatably mounted on a bearing plate 23 protruding from the inner surface of the cover body 3.

The grained rice that has been desiliconized in the hulling section is then air sorted in the wind sorting section so that the rice husks are sucked into the suction dust fan. The mixed rice from which the rice husks have been removed by wind sorting is supplied from the mixed rice thrower into the sorting cell 2 from a supply section 4 above a position close to one side plate 2a.

The mixed rice thus supplied into the sorting cell 2 is raised between the rotating disk 11 to a certain height as shown by the dashed line arrow A in FIG. The liquid is transported toward the discharge section 5 while forming a fluidized bed.

Then, the brown rice in the mixed rice is fitted into the recess 12 of each disk 11 and lifted up to a high position, and then
2, the brown rice is sorted into the brown rice receiving channels 13a and 13b.

In addition, if the brown rice receiving troughs 13a and 13b are attached to the bracket plate 18 so as to be able to freely adjust the inclination angle, the storage performance (sorting accuracy) of the brown rice received in each of the brown rice receiving troughs can be adjusted to an optimum state.

Since the brush body 19 disposed between each disc 11 is in sliding contact with the surface of each disc, the brown rice stuck in the recess 12 can be flicked out or swept out with the bristles of the brush body I9 in accordance with the rotation of the disc. This prevents brown rice from passing downward through the 13 locations of the brown rice receiving trough and being brought into the fluidized bed A while still being stuck in the recess 2, thereby improving the sorting performance.

Furthermore, if the disk 11 is rotated without adding mixed rice, the bristles of the brush body 19 can be used to clean the bottom surface 12C of the recess 12.

When replacing the disk 11 or cleaning the inside of the sorting cell 2, remove the locking hook 22 and flip up the cover body 3, and the brown rice receiving channel 13a attached to the inner surface of the cover body 3
, 13b and the brush body 19 can also be flipped up significantly and positioned outside the outer periphery of the disk 11. Then, when removing the side plate 2b, when one end of the rotating shaft 10 is supported by the bearing 17, The 17 bearings are also disassembled), then the naphts 16 are loosened and the disks 11 are pulled out one by one.As a result, the inside of the sorting cell 2 becomes large and hollow, making it easy to clean the inside. .

In addition, when a plurality of disks 11 are attached to and detached from the sorting cell 2, the rotating shaft 10 to which the disks 11 are attached may be configured to be able to be attached and detached in the axial direction. It is also possible to adopt a structure in which the middle part can be divided.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional front view of the sorting device, FIG. 2 is a sectional view taken along line nn of FIG. 1, FIG. The diagram is IV-IV in Figure 3.
5 is a sectional view taken along the line v--b in FIG. 3. 2... Sorting cell, 2a, 2b... Left and right side plates,
2c...body of sorting cell, 3...cover body, 4
...supply section, 5...discharge section, 1o...rotating shaft, 11...disc, lla...boss section, 1
2... Concavity, 13a, 13b... Brown rice catcher, 1
7...Bearing, 18...Bracket plate, 19...
...Brush body, 20a. 20b... Outer plate, 21... Hinge, 23...
bearing plate.

Claims (1)

[Claims] (1) A rotating shaft arranged approximately horizontally is supported on the left and right side plates of the sorting cell, and a plurality of disks each having a large number of recesses formed on the surface are provided on the rotating shaft at appropriate intervals. On the other hand, in a disk rotary grain sorting device in which the sorting cell is provided with a mixed rice supply section of paddy and brown rice and a paddy discharge section, at least one of the left and right side plates is detachable. On the other hand, the brown rice catcher disposed between each of the disks is fixed to a top cover body that covers the top surface of the disk, and the top cover body is configured to be able to be opened and closed with respect to the sorting cell. A disc rotating grain sorting device characterized by: