JPS6253232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a hulling and sorting device that combines a hulling mechanism, a wind sorting section, and a rotary sorting mechanism.

[Conventional technology]

Conventional huller sorting equipment often uses a swing-type sorting mechanism to sort brown rice from the rice that has been removed after de-air sorting. JP-A-Sho as a prior art because it also has disadvantages such as large vibration and noise.
Publication No. 49-24745 uses a rotary sorting mechanism that is equipped with a brown rice catcher in a horizontally rotating sorting cylinder with a number of depressions formed on the inner circumferential surface to sort brown rice from crushed rice. I am proposing to do so.

[Problem that the invention seeks to solve]

However, in the hulling and sorting device described in this publication, when the hulling operation is interrupted or finished, a considerable amount of brown rice remains in the brown rice receiving trough, and this residual brown rice is classified as brown rice. The brown rice receiving gutter had to be scraped out by hand or the brown rice receiving gutter had to be removed and cleaned, which required a great deal of effort.

The present invention, in a hulling sorting device using a rotary sorting mechanism for sorting brown rice, can remove brown rice remaining in the brown rice receiving trough very easily without reducing the strength of the brown rice receiving trough, and The purpose is to provide a device that can reliably discharge the liquid.

[Means for solving problems]

In order to achieve this object, the present invention includes a hulling mechanism, a wind-selecting part for removing rice scraped from the hulling mechanism, and a rotating sorting cylinder with a large number of depressions formed on its inner circumferential surface in the axial direction thereof. In a hulling sorting device consisting of a rotary sorting mechanism equipped with a brown rice receiving trough extending from
At the bottom of the brown rice receiving gutter in the rotary sorting mechanism, a groove-shaped drop opening extending in the longitudinal direction is formed between two lip plates integrally protruding from the lower surface of the bottom plate of the brown rice receiving gutter. A valve shaft is rotatably mounted in parallel to the axis of the brown rice receiving trough at approximately the center of the groove-shaped drop opening, and the groove-shaped drop opening is mounted on the valve stem by rotation of the valve stem. It has a fixed structure with a residual rice discharge valve that opens and closes.

[Action/effect of the invention]

With this structure, when the valve shaft in the groove-shaped drop opening at the bottom of the brown rice receiving trough is rotated when the hulling operation is interrupted or finished, the remaining rice discharge valve fixed thereto rotates, and the remaining rice discharge valve The brown rice remaining in the brown rice receiving trough is discharged from the groove-shaped drop opening into the sorting cylinder.

On the other hand, during the hulling operation, the groove-shaped drop opening, which is closed by the residual rice discharge valve, becomes completely clogged with brown rice, and this brown rice is absorbed into the rice bran, etc. that has peeled off from the brown rice inside the groove-shaped drop opening. Therefore, the remaining rice discharge valve for the groove-shaped drop opening was designed to open and close the bottom opening of the groove-type drop opening downward, as described in Utility Model Publication No. 1242, 1973. In some cases, even if the residual rice discharge valve is opened, the solidified portion cannot be broken as described above, so a situation may occur in which the brown rice remaining in the brown rice receiving trough cannot be discharged.

In contrast, the present invention has a structure in which a valve stem is provided approximately in the center of the groove-shaped drop opening formed between two lip plates as described above, and a residual rice discharge valve is fixed to this valve stem. By rotating the valve stem, the remaining rice discharge valve rotates so that one longitudinal edge of the remaining rice discharge valve approaches the inside of the brown rice receiving trough, and the left rice discharge valve is rotated so that one longitudinal edge of the remaining rice discharge valve approaches the inside of the brown rice receiving trough. Since the brown rice stuck in the upper part of the residual rice discharge valve is pushed up, the brown rice remaining in the brown rice receiving trough will not be able to be discharged, and the brown rice remaining in the brown rice receiving trough will be reliably removed. It can be discharged to

Therefore, according to the present invention, the brown rice remaining in the brown rice receiving trough can be reliably discharged by an extremely simple operation when the hulling operation is completed or interrupted. There is no need to scrape out the brown rice by hand or remove the brown rice receiving trough, which improves work efficiency.

Moreover, the present invention provides a groove-shaped drop opening provided at the bottom of the brown rice receiving gutter along the longitudinal direction of the brown rice receiving gutter, using two lips integrally protruding from the lower surface of the bottom plate of the brown rice receiving gutter. By forming it between the plates, the bottom of the brown rice receiving gutter can be reinforced by the two lip plates, so the strength of the brown rice receiving gutter is reduced by providing the groove-shaped drop opening in the longitudinal direction of the brown rice receiving gutter. Furthermore, the two lip plates have the effect of reliably avoiding an increase in the weight of the brown rice receiving trough.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a longitudinal sectional front view of the entire hulling and sorting machine A, and this hulling and sorting machine A has a hulling mechanism C and a rectangular box-shaped The entire structure is composed of a wind sorting section B and a rotary sorting mechanism D, and the hulling mechanism C and the rotary sorting mechanism D are arranged in parallel on the upper surface of the box-shaped wind sorting section B.

In the wind sorting section B, a No. 2 conveyor 1, a scraped rice conveyor 2, a brown rice conveyor 3, etc. are installed in parallel.
A suction dust extractor 4 is provided at one end in the longitudinal direction of the air sorting section B, and an intake port 6 is provided at the other end in the longitudinal direction, so that the sorting air flows above each of the conveyors 1, 2, and 3. It is configured to flow in the direction of the dotted arrow, and
A grain board 11 is provided.

The hulling mechanism C incorporates a pair of unrolled rice 9, and is equipped with a paddy supply hopper 10 on the upper part thereof, and the hulled rice conveyor 2 and grain distribution board 11 are located below the unrolled rice 9. The unrolling section 9 and the conveyors 1, 2, and 3 are rotationally driven by a motor M built in the wind selection section B.

A dropped rice thrower 12 is connected to one end of the dropped rice conveyor 2, and a brown rice thrower 13 is connected to one end of the brown rice conveyor 3.

On the other hand, the rotary sorting mechanism D includes a box-shaped case 1
4, upper and lower two stages of sorting tubes are horizontally suspended horizontally so as to be freely rotatable, and both of these sorting tubes are
The axis is the unrolling 9 in the hulling mechanism C.
It is arranged so as to be substantially perpendicular to the axis of.

Both sorting cylinders have a large number of recesses 15 on their inner circumferential surfaces that are large enough to fit the brown rice, and rotate at an appropriate speed.

Inside both of these sorting tubes, brown rice receiving troughs 17 with open tops are provided so as to extend in the axial direction of the sorting tubes, and within both brown rice receiving troughs 17, spiral conveyors 18 are respectively provided. It is being

In the upper sorting cylinder of both the sorting cylinders, in addition to the brown rice receiving trough 17, a trough 19 with a spiral conveyor for transporting lost rice is installed in parallel. The upper end of the dropped rice thrower 12 communicates with one end on the side of the hulling mechanism C via a supply tank 12', and the other end of the gutter 19 with a spiral conveyor for transferring dropped rice is connected to a sorting tube. It is open at one end thereof on the supply side.

Of both sorting tubes, the lower sorting tube has a brown rice receiving trough 17 in the upper sorting tube inside.
The ends of the tubes are connected to each other, and the brown rice that has been sorted in the upper sorting tube is further sorted.

At the bottom of the brown rice receiving trough 17 in the upper sorting cylinder, there is a groove-shaped drop opening 3 extending in the longitudinal direction.
3 is formed between two lip plates 33a and 33b integrally protruding from the lower surface of the bottom plate of the brown rice receiving trough 17, and a valve shaft 35 is located approximately at the center of the groove-shaped drop opening 33. is rotatably mounted parallel to the axis of the brown rice receiving trough 17, and the valve shaft 35 is mounted on the valve shaft 35 so as to be freely rotatable.
A remaining rice discharge valve 34 made of a plate is fixedly attached so as to open and close the groove-shaped drop opening 33 by the rotation of the plate. In addition, on one side edge of the leftover rice discharge valve 34 in the longitudinal direction, a lip portion 34a is formed by bending the one side edge.
is provided.

Furthermore, a groove-shaped drop opening formed between two lip plates in the same manner as described above is also provided at the bottom of the brown rice receiving trough 17 in the lower sorting cylinder and at the bottom of the trough 19 with a spiral conveyor for transferring the fallen rice. A residual rice discharge valve with a valve stem is installed in each of these groove-shaped drop openings.
In FIG. 3, reference numeral 36 indicates a valve shaft for the remaining rice discharge valve in the gutter 19 with a spiral conveyor for transferring fallen rice, and reference numeral 37 indicates a valve shaft for the remaining rice discharge valve in the brown rice receiving trough 17 of the lower sorting tube.

In addition, the reference numeral 20 in the figure is a machine base having a wheel protrusion/retraction mechanism of the rice huller sorting machine A. Approximately in the middle of this machine base 20, a support shaft 21 that protrudes on both left and right sides is provided. Arms 22 and 23 rearward from the shaft 21
and 24 and 25 are arranged in parallel, and these arms 22 and 23
and between the wheels 24 and 25.
Equipped with 6,27. The arms 23, 25
The operating rods 28 and 29, whose rear ends are connected to each other by a connecting rod 32, are fixed to each other, with one operating rod 28 extending rearward inside the fuselage, and the other operating rod 29 extending rearward outside the fuselage. The operating rod 28 inside the machine body projects rearward from the guide groove 30 and is removably locked to a suitable mechanism provided inside the machine body by a spring claw 31. Therefore, when both operating rods 28 and 29 are pushed down by applying weight to the connecting rod 32, both wheels 26 and 27 protrude, and this protruding state locks one of the operating rods 28 to the spring pawl 31. It is maintained by this. A link rod 40, 4
1 and 42, when one operating rod 28 is pushed down, the valve shafts 35, 36, and 37 are interlocked and connected so as to rotate 90 degrees at the same time.

Thus, the paddy supplied into the paddy supply hopper 10 in the hulling mechanism C is removed by a deroller 9, and then wind-selected by the sorting air of the suction dust remover 4 to remove rice husks, etc. Ru. After this wind selection, the rice is transferred from the rice conveyor 2 to the rice thrower 1.
2. The rice is supplied to the supply side in the upper sorting cylinder through the supply tank 12' and the gutter 19 with a spiral conveyor for transferring the scraped rice.

The fallen rice supplied into the upper sorting cylinder in this way repeats the flow of being scraped up to a certain height by the rotation of the sorting cylinder and then falling, forming a fluidized bed on the discharge side of the sorting cylinder. be transported. In the course of this flow transfer, the brown rice that is falling off falls into the recess 15 and falls from a high position, and enters the brown rice receiving trough 17. On the other hand, the brown rice that is falling in the sorting cylinder is axially moved. After the ratio of paddy increases as the paddy is transferred, only paddy remains on the discharge side of the sorting tube, and the paddy is returned to the paddy supply hopper 10 in the hulling mechanism C, where it is removed again.

On the other hand, the brown rice receiving trough 17 in the upper sorting tube
The coarsely sorted brown rice enters the supply side of the lower sorting cylinder, and as it repeatedly flows through the sorting cylinder and is transferred to the discharge side forming a fluidized bed, only the brown rice is transferred to the receiving side. After being carefully sorted to enter the gutter 17, the brown rice thrower 13
While being taken out of the machine, the scraped rice discharged from the discharge side of the lower sorting tube joins the scraped rice conveyor 2 and is subjected to the sorting operation again.

When the hulling work is completed, both operating rods 2
By pushing down 8, 29, both wheels 26,
27 protrudes from the lower surface of the machine base 20, and the entire hulling and sorting machine A is tilted. 28, the valve shafts 35, 36, and 37 rotate simultaneously, and the remaining rice discharge valve 34 fixed thereto rotates, opening the groove-shaped drop port 33, so that both sorting cylinders and the inner The brown rice remaining in each brown rice receiving trough 17 and the fallen rice remaining in the trough 19 with a spiral conveyor for transporting dropped paddy rice are
The liquid is discharged from the groove-shaped drop port 33 into each sorting tube.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a vertical sectional front view of the entire huller sorting machine, Fig. 2 is a plan view of the wheel mechanism, and Fig. 3 is an enlarged sectional view of the main part of the brown rice receiving trough. be. A... Hulling and sorting machine, B... Wind sorting section, C... Hulling mechanism, D... Rotary sorting mechanism,... Sorting cylinder, 15... Concave, 17... Brown rice receiving trough, 33... …
Groove type drop port, 33a, 33b... lip plate, 35
...Valve stem, 34...Remaining rice discharge valve.

Claims (1)

[Claims] 1. A rotary type equipped with a hulling mechanism, a wind sorting section for removing rice that has fallen from the hulling mechanism, and a brown rice receiving trough that extends in the axial direction within a rotating sorting cylinder that has a number of depressions formed on its inner circumferential surface. In the hulling sorting device comprising a sorting mechanism, the bottom of the brown rice receiving gutter in the rotary sorting mechanism is provided with a groove-shaped drop opening extending in the longitudinal direction integrally protruding from the lower surface of the bottom plate of the brown rice receiving gutter. A valve shaft is mounted at approximately the center of this groove-shaped drop opening so as to be rotatable parallel to the axis of the brown rice receiving trough. 1. A rice hulling sorting device, characterized in that a rice residue discharge valve is fixed to the groove-shaped drop opening to open and close it by rotation of the rice huller.