JPS592836Y2 - Grain circulation device in hulling and sorting equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain circulation device in a rice hulling and sorting device.

The present invention relates to a rice hulling sorting device using an oscillating specific gravity grain sorting device.

In the device in which the oscillating specific gravity grain sorting device is combined with the hulling device, the unhulled rice separated by the sorting device is formed so as to return to the supply section of the hulling device via the unhulled rice return path,
The brown rice separated by the sorting device is formed so as to be guided out of the system, and the mixed rice flowing out from the sorting device is formed to be returned to the sorting device via a mixed rice return path. Regarding mixed rice, the amount of mixed rice is very small near the end of the work, so returning it to the sorting device has little effect, and it is actually more advantageous not to return it.

Therefore, in this invention, the mixed rice taken out from the mixed rice outlet is
As with unhulled rice, the rice is returned to the supply hopper of the hulling device and hulled to prevent unhulled rice from occurring, and this condition should not continue for too long. It is necessary to constantly be aware of this fact, so we especially installed see-through windows in the passageways.

However, if the mixed rice is configured to be returned to the supply hopper from the beginning, the interior of the supply hopper may overflow during the operation, or unnecessary unhusking of brown rice is constantly forced, which is extremely inconvenient. .

In other words, when brown rice is passed through the hulling rolls again, not only is there a risk that the brown rice will break, but the carbon contained in the rubber rolls will adhere to the skin of the brown rice. This is because brown rice becomes black and contaminated.

Therefore, it is advisable to use a switching valve so that the material returns to the supply hopper only when time is required for processing immediately before the end of the work.

Therefore, in the present invention, a swing type specific gravity grain sorting device is installed in the vicinity of the hulling device, and the hulled material discharged from the hulling device is separated into brown rice, hulled rice, and mixed brown rice and hulled rice by the sorting device. The unhulled rice separated by the sorting device is formed so as to return to the supply section of the hulling device via the unhulled rice return path, and the brown rice separated by the sorting device is guided out of the system. and the mixed rice flowing out from the sorting device is returned to the sorting device via a mixed rice returning path, and the mixed rice returning path is connected to the starting end of the mixed rice returning path. This is a grain circulation device in a hulling and sorting device in which a switching valve is installed to merge the unhulled rice return path, and a see-through window is formed in the unhulled rice return path.

To explain with reference to the drawings, reference numeral 1 indicates a rubber roll type hulling device, in which a supply hopper 2 is formed at an upper position, and a pair of hulling rolls 3, 3 are mounted below the supply hopper 2.

A suction air passage 4 is formed in the lower part of the hulling rolls 3, 3, the lower wall of the suction air passage 4 is used as a gutter 5, and a koshibear 6 is placed on the gutter 5.
horizontally installed.

7 is a suction windmill that sucks the inside of the suction air path 4.

A metal lid case 8 is provided near the hulling device 1,
A swinging device 9 is mounted on the metal lid case 8, and a grain swing type specific gravity grain sorting device 10 is mounted on the top of the swinging device 9.

Reference numeral 11 denotes an elevator installed at a lateral position near the hulling device 1, and lifts the grains transported laterally by the conveyor 6.

12 is a storage tank. The storage tank 12 is connected to the elevator 1
At the discharge end 14 of the discharge gutter 13 of No. 1, a parallel link 15.15
', and is suspended by a spring 16.

The upper end of the spring 16 is connected to the side of the discharge gutter 13,
The lower end is connected to the side of the storage tank 12 .

Reference numeral 17 denotes a distribution gutter 17 that distributes and supplies grains discharged from the storage tank 12.

The grain shaking type specific gravity grain sorting device 10 has a structure as shown in FIG. The supply side 21 is higher than the discharge side 22 and is inclined in two directions, and the tip of the distribution gutter 17 is attached to the intersection of the supply side 21 and the swinging side 19.

A plurality of partition plates 23 are attached to the discharge side 22, and the part partitioned by the partition plates 23 near the shaking upper side 19 is a brown rice outlet 24, and the part near the shaking lower side 20 is a paddy rice receiving outlet 2.
5. Form the mixed rice outlet 26 in the middle.

The unhulled rice that has fallen from the unhulled rice outlet 25 is removed from the unhulled rice by the unhulled rice removal device 1.
A return gutter 27 communicates with the supply hopper 2 so that the unhulled rice flows out from the unhulled rice outlet 25 and returns to the supply hopper 2 via the return gutter 27.

A vibrating conveyor 28 is installed below the brown rice outlet 24.

The vibrating conveyor 28 is oscillated in the W direction by the oscillating device 9, and the fallen brown rice is stirred up and discharged from the outlet 29 to the outside of the thread.

A gutter 30 is formed at the bottom of the mixed rice outlet 26, a drop port 31 is opened at the end of the gutter 30, and a drop tube 32 is formed.
The structure is such that the grains are returned to the conveyor 6 via the conveyor 6.

A switching valve 33 is attached to the drop port 31 by a shaft 34 so that it can rotate between the solid line position in FIG. 2 and the phantom line position in the figure. The mixed rice flows into the return gutter 27 via the switching valve 33 and returns to the supply hopper 2, and when the rice is placed in the position shown by the temporary line, the drop port 31 opens and flows into the conveyor 6 via the drop tube 32. Configure.

An arm 35 is fixed to the shaft 34, one end of a spring 36 is fixed to the arm 35, and the other end of the spring 36 is fixed to a fixed part, so that the switching valve 33 is always located at the position of the phantom line. do.

Also, one end of a wire 37 is fixed to the arm 35, and the transparent window 38 is connected to the middle part of the parallel link 15 at the lower part in FIG. When the arm 35 is moved upward by the wire 37, the arm 35 is rotated to the position shown by the solid line in FIG.

A see-through window 38 is formed in the return gutter 27 so that the flow of grain can be confirmed through the see-through window 38.

Next, we will discuss the effect.

When the raw material, unhulled rice, is supplied to the supply hopper 2, the unhulled rice is hulled when passing between the hulling rolls 3, 3, and reaches the suction air path 4 as a mixture of chaff, brown rice, and unhulled rice. Light-weight rice husks are sucked in the suction air path 4 and scattered further away from the suction windmill 7.

Both brown rice and unhulled rice are guided to the lower part of the elevator 11 by the conveyor 6, ascend inside the elevator 11, are stored in the storage tank 12 through the discharge gutter 13, are supplied from the storage tank 12 to the distribution gutter 17, and are each It is fed onto the sorting board 18 of the stage.

Since the sorting board 18 is oscillated in the direction of the arrow W by the oscillating device 9, brown rice with a heavy specific gravity is distributed on the oscillating upper side 19 and flows out from the brown rice outlet 24, and is moved by the vibrating conveyor 28 and taken out. It is taken out from the outlet 29.

Unhulled rice, which has a specific gravity lighter than brown rice, is distributed in the shaking direction 20, flows out from the unhulled rice outlet 25, is returned to the supply hopper 2 via the return gutter 27, and is hulled again.

If the work continues in this way, the storage tank 12
is filled with grain and is heavy, so it moves downward against the elasticity of spring 16, and therefore wire 37, whose upper end is connected to parallel link 15', is loosened, so that the lower end of wire 37 is connected. The arm 35 is rotated by the elasticity of the spring 36, and the switching valve 33 is in the position shown by the phantom line in FIG.

Therefore, after the mixed rice of brown rice and unhulled rice flows out from the mixed rice collection outlet 26, it flows through the flow gutter 30, flows into the drop tube 32 from the open drop port 31, reaches the conveyor 6, and is sorted again at each stage. It circulates on the board 18.

As this work continues, the work approaches completion, and therefore, brown rice is no longer taken out from the brown rice take-out port 24.

However, the mixed rice still continues to flow down from the mixed rice outlet 26, and the mixed rice that has flowed down is again circulated onto the sorting plates 18 of each stage as described above.

However, since the amount of mixed rice will be small, the sorting board 1 at each stage will
Even if it is circulated over 8, it cannot be sorted as desired and the efficiency becomes very low.

However, in the present invention, when this condition occurs, the storage amount in the storage tank 12 also decreases, so the storage tank 12 is moved upward by the elasticity of the spring 16, and the parallel link supporting the storage tank 12 Spring 1 due to the action of 15'
6 and wire 37 to rotate the arm 35 clockwise,
Then, the switching valve 33 is switched to the position shown by the solid line in Figure 2, and the mixed rice is fed into the supply hopper 2, and the remaining rice is completely removed from the frame.In this case, the flow of the mixed rice is confirmed through the see-through window 38. It is possible.

Conventionally, in a device in which an oscillating specific gravity grain sorting device is combined with a hulling device, the unhulled rice separated by the sorting device is formed so that it returns to the supply section of the hulling device via the unhulled rice return path. However, the brown rice separated by the sorting device is formed so as to be guided out of the system, and the mixed rice flowing out from the sorting device is formed to be returned to the sorting device via a mixed rice return path. In this case, when looking at the mixed rice, the amount of mixed rice is very small near the end of the work, so returning it to the sorting device takes time and is not very effective, and it is actually more advantageous not to return it.

Therefore, in the present invention, a swing type specific gravity grain sorting device 10 is provided in the vicinity of the hulling device 1, and the hulled material discharged from the hulling device 1 is mixed with brown rice, hulled rice, and unhulled rice by the sorting device 10. The unhulled rice separated by the sorting device 10 is formed so as to be separated into rice, and the unhulled rice is returned to the supply section 2 of the hulling device 1 via the unhulled rice return path 27, and the unhulled rice is separated by the sorting device 10. The brown rice is formed so as to be guided out of the system, and the mixed rice flowing out from the sorting device 10 is formed so as to be returned to the sorting device 10 via the mixed rice return path 32. A switching valve 33 for merging the mixed rice return path 32 into the unhulled rice return path 27 is installed at the starting end of the unhulled rice return path 32, and a see-through window 38 is formed in the unhulled rice return path 27. Since this is a circulation device, the switching valve 33 is in the position shown by the phantom line in FIG. 2 when the A0 work is continued.

Therefore, after the mixed rice of brown rice and unhulled rice flows out from the mixed rice collection outlet 26, it flows through the flow gutter 30, flows into the drop tube 32 from the open drop port 31, reaches the conveyor 6, and is sorted again at each stage. It circulates on the board 18 and normal work can be done.

As I continue this work, the work is nearing completion,
Therefore, brown rice is no longer removed from the brown rice outlet 24.

However, the mixed rice still continues to flow down from the mixed rice outlet 26, but since the amount of mixed rice is small, it cannot be circulated over the sorting plates 18 in each stage and sorted as desired, resulting in a very poor efficiency.

However, in the present invention, when this condition occurs,
By setting the switching valve 33 to the position shown by the solid line in FIG. 2, the mixed rice is supplied into the supply hopper 2, and the leftover rice is completely unframed.

C. The above-mentioned state in which the mixed rice is returned to the supply hopper 2 can be confirmed through the see-through window 38.

This effect is achieved.

[Brief explanation of drawings]

Figure 1 is a partial vertical sectional side view of the rice hulling sorting device of the present invention;
The figure is a partially cutaway perspective view showing the structure of the mixed rice switching valve. Explanation of symbols Hulling device...1, Supply hopper
...2. Husking roll ...3. Suction air path
...4, Gutter ...5, Conveyor ...
...6. Suction windmill...7. Right front case...
...8, Rocking device...9, Grain rocking type gravity grain sorting device...10, Lifting machine...11
．． Storage tank...12, discharge gutter...1
3. Discharge end... 14. Parallel link...
15, Spring...16, Distribution gutter...17
, Sorting board...18, Rocking side...19,
Swinging side...20, Supply side...21. Discharge side...22, Partition plate...23, Brown rice outlet...24, Paddy rice outlet...25
, Mixed rice outlet...26, Return gutter...
27, Vibration conveyor...28, Outlet...
...29, Gutter...30, Drop opening...
31, Drop tube...32, Switching valve...3
3. Axis...34, Arm...35, Spring...36, Wire...37, Transparent window...
...38゜

Claims (1)

[Scope of utility model registration request] A swing-type specific gravity grain sorting device is installed near the hulling device.
The hulled material discharged from the hulling device is separated into brown rice, unhulled rice, and mixed rice with unhulled rice by the sorting device, and the unhulled rice separated by the sorting device is sent to the hulled rice through the hulling route. The brown rice separated by the sorting device is formed so as to be returned to the supply section of the device, and the brown rice separated by the sorting device is guided out of the system, and the mixed rice flowing out from the sorting device is returned to the sorting device through a mixed rice return path. In the device formed to return the mixed rice, a switching valve is installed at the starting end of the mixed rice return path to merge the mixed rice return path into the unhulled rice return path, and a see-through window is formed in the unhulled rice return path. Grain circulation device in the rice hulling sorting device.