JPS6144553B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a huller sorting machine which removes paddy in a huller mechanism and then sorts and takes out only brown rice from the mixed rice after the huller. The present invention relates to a device for returning paddy after separating brown rice from mixed rice to the hulling mechanism.

[Problems with conventional technology]

Conventionally, many of this type of huller sorting machine used a swing-type sorting mechanism for sorting brown rice.
This oscillating type sorting mechanism has disadvantages such as being large and generating large vibrations and noise, so Japanese Patent Application Laid-Open No. 49-24745 as a prior art proposes a method for sorting brown rice from mixed rice after removal. In this paper, it is proposed to use a rotary sorting mechanism in which a brown rice receiving trough is provided in a horizontally oriented rotary sorting cylinder with a number of recesses formed on the inner circumferential surface.

The rice hulling sorter described in this publication is
Of both ends of the sorting tube in the rotary sorting mechanism, one end farther from the hulling mechanism is the paddy discharge side, and the paddy discharged from the bottom of the discharge side is transferred to a bucket conveyor at a position higher than the top surface of the sorting tube. After the grain has been fried to a certain level, it is returned to the paddy supply tank in the hulling mechanism.

However, it is difficult to use a bucket conveyor to return the paddy discharged from the bottom of the discharge side of the sorting tube to the paddy supply tank of the hulling mechanism located higher than this. This is extremely complicated, increases weight, and increases manufacturing costs.Furthermore, the height of the bucket conveyor must be higher than the top of the sorting tube, so the total height of the huller is reduced. There were problems with the price being high.

In addition, in the above-mentioned rotary sorting mechanism, the mixed rice supplied into the sorting cylinder is scraped up to a certain height by the rotation of the sorting cylinder, and then falls to the bottom repeatedly, forming a fluidized bed. While moving to the discharge side, the brown rice in the mixed rice is lifted up to a relatively high height while being stuck in the recess and then falls, and the paddy in the mixed rice falls from a lower position than the brown rice. Since the brown rice that falls from a high position is received by the brown rice receiving gutter and taken out using movement, in order for this sorting action to be performed correctly, the fluidized bed of the mixed rice must have a certain thickness. It is necessary to

In other words, when the thickness of the fluidized bed in the sorting cylinder is thin or absent, a phenomenon occurs in which the mixed rice dances up in the sorting cylinder due to its rotation, reducing the rate at which brown rice gets stuck in the recesses. , the sorting ability will be reduced.

However, in the prior art, the discharge side of the sorting cylinder is opened, the paddy discharged from the discharge side is received by a hopper at the lower part thereof, and the paddy is returned to the hulling mechanism by the bucket conveyor. As a result, the thickness of the fluidized bed of mixed rice in the sorting cylinder becomes extremely thin on the discharge side, and the mixed rice rises up on the discharge side of the sorting cylinder, reducing the sorting ability. Not only that, some of the paddy that had danced up entered the brown rice receiving trough, reducing the sorting accuracy.

The present invention solves the above-mentioned problems, namely, increasing the size of the hulling and sorting device, as well as the sorting capacity and sorting mechanism, when the paddy discharged from the rotary sorting mechanism used for sorting brown rice is returned to the hulling mechanism. The purpose is to eliminate the decrease in accuracy.

[Means for solving problems]

For this reason, the present invention consists of a hulling mechanism equipped with a paddy supply tank on the upper surface, and a rotary sorting mechanism in which a brown rice receiving trough is provided in a horizontal rotary sorting cylinder with a number of recesses formed on the inner peripheral surface. In the hulling sorting machine in which the hulling mechanism and the rotary sorting mechanism are arranged side by side, the rotary sorting mechanism is arranged such that a discharge side at one end of the sorting tube is adjacent to the hulling mechanism. On the other hand, a means for scooping up paddy is provided on the inner circumferential surface of the discharge side of the sorting tube, and
An annular weir plate is provided that protrudes inward at an appropriate height from the end of the scooping means, and a gutter-shaped paddy chute is provided between the discharge side of the sorting tube and the paddy supply tank in the hulling mechanism. It has a mounted configuration.

[Action/effect of the invention]

With this configuration, during sorting in the sorting cylinder of the rotary sorting mechanism, the paddy that has migrated to the bottom of the discharge side is stagnated due to the presence of the inward annular weir plate provided at the end of the sorting cylinder. Then, while the paddy is held in a fluidized bed of a certain thickness, the paddy is scooped up to a high position as the sorting tube rotates using a scooping means provided on the inner peripheral surface of the discharge side of the sorting tube. The paddy is scooped up and falls from a high position onto the top of the paddy chute.
The paddy is transferred to the paddy supply section in the hulling mechanism via the paddy chute.

In other words, according to the present invention, when the paddy discharged from the rotary sorting mechanism is returned to the hulling mechanism located at a high place, the paddy can be fried to a high position by the rotation of the sorting cylinder itself, Since the high-height bucket conveyor for returning paddy as in the prior art can be omitted, the structure of the mechanism for returning paddy to the hulling mechanism can be significantly simplified, the weight can be reduced, and the structure of the mechanism can be reduced. The total height of the sorting machine can be made low, and the presence of the inward annular weir plate provided on the terminal end side of the paddy scooping means allows the fluidized bed in the sorting tube to be lowered. Since it is possible to reliably form the grain up to the discharge side of the grain and prevent the rising phenomenon on the discharge side, when the paddy after sorting in the sorting tube is discharged from the sorting tube and returned to the hulling mechanism. , it has the effect of reliably avoiding deterioration in sorting ability and sorting accuracy as in the prior art.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a partially cutaway front view of a rice hulling sorter, and this hulling sorter has a rectangular box D and a rectangular box D. The whole structure includes a hulling mechanism E mounted on the left side of the top surface and a rotary sorting mechanism C mounted on the right side of the top surface of the rectangular box body D.

The hulling mechanism E consists of a paddy supply tank 3 and a pair of left and right unrollers 10, 10 at the bottom thereof,
Inside the rectangular box D, a wind selection section F is built-in. This wind sorting section F includes a suction dust extractor 4 located below the hulling mechanism E, a No. 2 conveyor 5, a mixed rice conveyor 6, and a brown rice conveyor 7 located on the right side of the mixed rice conveyor 6. . Further, on the front side of the box body D, the mixed rice conveyor 6 is provided.
A mixed rice thrower 8 communicating with the brown rice conveyor 7, and a brown rice thrower 9 communicating with the brown rice conveyor 7 are provided.

The rotary sorting mechanism C separates the de-air-sorted mixed rice (a mixture of brown rice and paddy) into brown rice and paddy. It is equipped with a tube A and a secondary sorting tube a, and both sorting tubes A, a have a large number of recesses 1 formed on their inner surfaces with a size large enough to fit brown rice, and both sorting tubes A, a is installed horizontally so that its axis is orthogonal to the axis of the derolling devices 10, 10 in the hulling mechanism E, and extends in the longitudinal direction of the box body D.
That is, both the sorting cylinders A, a have one end (A) on the opposite side to the hulling mechanism D among the left and right ends thereof, facing the supply side;
The other end B on the side of the hulling mechanism D is configured as the discharge side, and roller wheels 1 are arranged on both left and right sides below both ends thereof.
2, and is rotated to the left as indicated by arrow C in FIG.

Inside both the sorting tubes A and a, there are brown rice receiving troughs B with an open top, each containing a spiral conveyor 13 and 14, respectively.
b is provided with its both ends fixed to the box-like case 11 so as to extend in the axial direction of the sorting tube, and among the left and right side plates of the brown rice receiving trough B, b, the side for raking up mixed rice in the sorting tube is Adjustment plates 15 and 16 are provided at the upper ends of the side plates, respectively.

The mixed rice from the mixed rice thrower 8 is introduced from the lower outlet 19 of the mixed rice thrower 8 via the tank 18 to the supply side A of the primary sorting tube A, and one end A of the brown rice receiving channel B in the primary sorting tube A is supplied. It communicates with the supply side A in the secondary sorting tube a through the gutter 20, and communicates the discharge side B of the secondary sorting tube a with the mixed rice conveyor 6 through the flow board 22, and further, the secondary sorting tube a. One end of the finished brown rice receiving gutter b in the tube a is configured to communicate with the brown rice conveyor 7 via the gutter 23 and grain flow plate 24.

Then, on the inner surface of the discharge side B of the primary sorting tube A, a plurality of scooping blades 2, which is one embodiment of a paddy scooping means, are provided at appropriate intervals in the circumferential direction, and the scooping blades 2 are provided at appropriate intervals in the circumferential direction. An annular weir plate 25 that projects inward to an appropriate height is provided on the terminal side of the blade 2.

On the other hand, a gutter-shaped paddy chute 17 having left and right side plates 17', 17' is installed between the discharge side of the primary sorting tube A and the paddy supply tank 3 in the hulling mechanism D.

When paddy is supplied to the paddy supply tank 3 during operation, the mixed rice removed by the hulling mechanism E is removed by the wind flowing toward the suction dust remover 4 in the wind sorting section F for the mixed rice. After being drained, the mixed rice enters the mixed rice conveyor 6, and this mixed rice is passed from the upper end of the mixed rice thrower 8 to the tank 18 and then to its lower outlet 19.
From there, it is supplied to the supply side A in the primary sorting cylinder A.

The mixed rice thus supplied into the primary sorting tube A repeats the flow of being scraped up to a certain height by the rotation of the primary sorting tube A in the left direction, and then falling to the bottom, forming a fluidized bed. Meanwhile, it is transferred toward the discharge side B of the primary sorting tube A as shown by the arrow H in FIG.

During this flow, the brown rice in the mixed rice is lifted up to a relatively high place while being fitted into the recess 1 on the inner surface of the primary sorting tube A, and then falls from the recess 1 as shown by arrow D in Figure 2. By doing so, mainly only brown rice enters brown rice receiving channel B.

As mentioned above, the amount of paddy in the mixed rice after the brown rice is removed to the brown rice receiving trough B in the primary sorting tube A increases as it is transferred to the discharge side B of the primary sorting tube A. Mixed rice with a large amount of paddy is removed by an inward annular weir plate 2 installed at the end of the primary sorting tube A.
5 and is held in a fluidized bed of a certain thickness, then scooped up to a high position by the scooping blade 2 provided on the inner surface of the discharge side B as the primary sorting cylinder A rotates. It falls from a high position onto the top surface of the paddy chute 17 as shown by the arrow, and is sent to the paddy supply tank 3 in the hulling mechanism E through the paddy chute 17.
It is reduced to , and deactivation is performed again.

On the other hand, the brown rice that has entered the brown rice receiving trough B in the primary sorting tube A is transferred in the direction shown by the arrow G in FIG. They are then sent to the side where they are sorted again.

In other words, the brown rice fed into the secondary sorting tube a flows in the same way as described above, and as it is being transferred to the discharge side B as shown by the arrow C in Figure 1, only the brown rice becomes the finished brown rice. After being sorted to enter the receiving gutter b, the mixed rice is transferred from the discharge side b to the mixed rice conveyor 6.
On the other hand, the finished brown rice that enters the finished brown rice receiving gutter b is transferred as shown by the arrow in Fig. 1 and then enters the brown rice conveyor 7. After that, it is taken out of the machine by the brown rice thrower 9.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view of a rice hulling sorter, and FIG.
FIG. 3 is a cross-sectional view taken along the line - in FIG. 1. D... Box body, E... Hulling mechanism, 3... Paddy supply tank, F... Wind sorting section, C... Rotary sorting mechanism, A
... Sorting tube, 1 ... recess, B ... brown rice catcher, I ...
...Supply side, B...Discharge side, 2...Scooping blade as a scooping means, 17...Paddy chute, 25...
Weir board.

Claims (1)

[Claims] 1 Consists of a hulling mechanism equipped with a paddy supply tank on the top surface, and a rotary sorting mechanism in which a brown rice catcher is provided in a horizontal rotary sorting cylinder with a number of recesses formed on the inner circumferential surface, and the said hulling mechanism and a rotary sorting mechanism arranged side by side, the rotary sorting mechanism has a discharge side at one end of its sorting cylinder,
While disposed adjacent to the hulling mechanism, a means for scooping up paddy is provided on the inner circumferential surface of the discharge side of the sorting tube, and a means for scooping up paddy is provided at an appropriate height inward from the scooping means toward the terminal end. A rice hulling and sorting machine, characterized in that an annular weir plate projecting from above is provided, and a gutter-shaped rice chute is installed between the inside of the discharge side of the sorting tube and the rice supply tank of the hulling mechanism. Rice reduction device in sorting tube.