JPH0352144Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is equipped with a rotary sorting cylinder that continuously rotates in one direction to sort out finished brown rice from mixed rice after hulling into a brown rice receiving gutter, and adjusts the amount of brown rice sorted and taken out as appropriate. The present invention relates to a sorting device for a huller, in which a gate valve is provided in the receiving gutter, and the gate valve is adjusted in response to an increase or decrease in the amount of mixed rice in the sorting barrel to maintain an appropriate amount of brown rice to be sorted. .

Conventionally, with this kind of structure, after the brown rice gate valve reached the closing limit position, the finished brown rice could not be taken out properly, that is, the finished brown rice was contaminated with paddy in excess of the standard. However, there was a drawback in that some rice was taken out of the machine as proper brown rice, which was one of the causes of a decrease in the sorting accuracy.

The present invention has been improved in view of the above points, and includes a minimum takeout amount detection switch that detects the closing limit position of the gate valve, and a minimum takeout amount detection switch that detects the closing limit position of the gate valve, and a feed direction of the sorted finished brown rice to the outside takeout side or the sorting cylinder. A switching valve that can be replaced as appropriate is provided on the circulation side that returns the rice to the water, and when the switch detects the maximum closing position of the gate valve, the switching valve is operated to send the finished brown rice to the circulation side. It is an object of the present invention to provide a sorting device for a huller that allows only appropriately finished brown rice to be taken out of the machine and that stably maintains the sorting accuracy without reducing it.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. FIG. 1 is a cross-sectional view of the entire structure, and 1 in the figure is a hulling section, which includes a hopper 2 into which paddy is introduced, and a pair of derollers 3 and 4 installed in the lower part of the hopper 2.
Equipped with.

In the figure, 5 is the wind sorting section on which the hulling section 1 is placed, the first gutter 6 and the brown rice conveyor 7 for taking out the brown rice.
, a small rice receiver 8 provided adjacent to the first gutter 6, a second gutter 10 facing below the unrolled grains 3 and 4 via a grain board 9 for taking out mixed rice, and a mixed rice conveyor 11. and a gruel receiver 12 adjacent to the second gutter 10 for receiving the gruel separated from the mixed rice.
and a sorting air passage 1 above the conveyors 7 and 11.
3, and brown rice and mixed rice throwers 15, 16 whose lower base ends communicate with the conveyors 7, 11.

In the figure, reference numeral 17 denotes a mixed rice sorting section which is a sorting device installed in parallel with the hulling section 1, and as shown in FIG. Support rolls 19 rotatably support the sorting cylinders 18, and the mixed rice thrower 1.
A mixed rice supply gutter 20 whose feed start end side communicates with the feed end of No. 6 and whose feed end side is inserted into the sorting cylinder 18.
and the mixed rice supply conveyor 21 and the sorting cylinder 18
When the sorting cylinder 18 rotates, the pot hole 18a
a brown rice receiving gutter 22 for receiving brown rice that is inserted into and lifted up, a brown rice take-out conveyor 23, and the sorting cylinder 1.
Paddy scooping blade 2 installed at the feed end of 8 to rake up the paddy
4, a reducing chute 25 that returns the paddy raked up by the blades 24 to the hopper 2, and a guide chute 26 that communicates the feeding end of the brown rice receiving gutter 22 with the first gutter 6 and the second gutter 10. and a brown rice delivery switch installed in the chute 26 to appropriately send the brown rice sent out from the brown rice receiving gutter 22 to the first gutter 6 on the extraction side A or the second gutter 10 on the circulation side B. It includes a valve 27 and a switching operation solenoid 28 that operates the switching valve 27.

Incidentally, the sorting cylinder 18 is provided with a sensor 29 that detects a change in the amount of mixed rice (sorted amount) in the cylinder 18, and the brown rice receiving gutter 22 is equipped with a sensor 29 that detects a change in the amount of mixed rice (sorted amount) in the cylinder 18.
The sensor 29 is equipped with a brown rice gate valve 30 that appropriately adjusts the amount of brown rice sorted and taken out of the brown rice received by the sensor 29.
and gate valves 30 are interlocked and connected to each other via links 31, and when the sensor 29 detects a change in the amount of mixed rice in the sorting cylinder 18, the gate valves 30 are opened and closed to maintain an appropriate amount of brown rice taken out. It is configured to allow Further, in the sorting barrel 18, there is a brown rice minimum removal amount detection switch 3 that detects when the gate valve 30 is closed to the closing limit position.
2, the switch 32 is connected to the battery 34 via the main switch 33 as shown in FIG. When the amount taken out is detected, the solenoid 28 is energized to switch the switching valve 27 from the outside extraction side A to the circulation side B in the direction of the second gutter 10.

The present embodiment is constructed as described above, and the grains (brown rice and paddy) removed by the removal rolls 3 and 4 are wind sorted and then sent to the sorting cylinder 18 via the mixed rice thrower 16. After the brown rice that is supplied and fitted into the rotating inner pot hole 18a of the barrel 18 is taken out into the receiving gutter 22 depending on the specific gravity, slipperiness, or size difference between the rice and the paddy, the guide chute 26 and the brown rice are It is carried out of the machine via the thrower 15.

During this operation, when the amount of mixed rice in the sorting cylinder 18 decreases or increases, the sensor 29 operates according to this amount change, and the gate valve 30 is controlled to open and close to take out the rice appropriately corresponding to the amount of mixed rice. A quantity of brown rice can be received into the receiving trough 22. When the gate valve 30 closes to its full closing limit and the switch 32 detects this, the solenoid 2
8 is energized, and the alarm lamp 35 lights up.As a result of the solenoid 28 being energized, the switching valve 27 is switched to the state where the circulation side B is opened, and from this point on, brown rice is received in the receiving gutter 22. are returned to the sorting cylinder 18 and subjected to re-sorting. In this way, when the amount of mixed rice in the sorting barrel 18 is reduced to more than the minimum limit, the gate valve 30 is in the most closed state, and the brown rice received in the receiving gutter 22 is mixed with paddy, this brown rice is removed. Sorting cylinder 18 again
This is to eliminate the inconvenience of having this brown rice removed from the machine as finished brown rice.

As is clear from the above embodiments, the present invention includes a rotary sorting cylinder 18 that is continuously rotated in one direction to sort out finished brown rice from mixed rice after hulling to the brown rice receiving gutter 22, and the amount of brown rice sorted and taken out. A brown rice gate valve 30 for adjusting the brown rice as appropriate is connected to the receiving gutter 2.
In the structure provided in item 2, a minimum extraction amount detection switch 3 detects the closing side limit position of the gate valve 30.
2, and a switching valve 27 for appropriately switching the sending direction of the sorted finished brown rice to the take-out side A to the outside of the machine or the circulation side B that returns to the sorting barrel 18, and the switch 32 is connected to the closed side of the gate valve 30. When the limit position is detected, the switching valve 27 is operated to send the finished brown rice to the circulation side B. Therefore, regardless of the increase or decrease in the amount of mixed rice fed into the sorting cylinder 18, the proper finished brown rice is always delivered. This has remarkable effects such as being able to take out the chisels outside the machine, stably maintaining the sorting accuracy in the sorting cylinder 18, and improving work efficiency.

[Brief explanation of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is an explanatory view of the main parts, and FIG. 3 is an electric circuit diagram. 18... sorting cylinder, 22... brown rice receiving gutter, 27... switching valve, 30... brown rice gate valve, 32... detection switch,
A... Output side, B... Circulation side.

Claims (1)

[Scope of utility model registration request] A structure in which a rotary sorting cylinder is continuously rotated in one direction to sort and take out finished brown rice from mixed rice after hulling to a brown rice receiving gutter, and a brown rice gate valve is provided in the receiving gutter to appropriately adjust the amount of brown rice sorted and taken out. A minimum takeout amount detection switch that detects the closing limit position of the gate valve, and a switching valve that appropriately switches the direction of sending out the sorted finished brown rice to the takeout side outside the machine or the circulation side that returns it to the sorting barrel. 1. A sorting device for a rice huller, characterized in that when the switch detects the maximum closed position of the gate valve, the switching valve is operated to send the finished brown rice to the circulation side.