JPH0116535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bran removal device for a small rice mill used particularly by farmers.

BACKGROUND TECHNOLOGY As shown in Fig. 1, a conventional rice milling machine has a hopper 2 and a cyclone 3 for removing rice bran disposed inside and above a rice milling machine body 1, and a rice bran removing device 3 is disposed at the bottom of the hopper 2. A grain section 4 is provided, and a bran collecting trough 5 and a fan 6 are respectively arranged at the lower part of the grain polishing section 4.

Then, the brown rice supplied from the hopper 2 enters the milling chamber 7 of the grain milling section 4 at the bottom of the hopper 2, and while the brown rice is stirred by a stirring cylinder 8 in the milling chamber 7, a hollow shaft 9 communicating with the fan 6 The bran falling off from the brown rice is collected in the bran collecting trough 5 at the bottom of the grain milling section 4 by the wind blowing out from the spout 10 through the flow, and then the bran in the bran collecting trough 5 is transferred to the conduit 11, the fan 6 and the conduit. 12 and is collected in cyclone 3, and then cyclone 3
The bran is separated from the air inside the cyclone 3, and the bran is discharged from one end 3a of the cyclone 3 to the outside of the rice milling machine body 1 through a bran discharge port (not shown) that is opened on the outer wall of the rice milling machine body 1, and is placed in a rice bran bag or the like. Collected in

In addition, there is also one in which a cyclone is attached to the outside of the rice polishing machine main body 1.

Furthermore, a bran removing fan is attached to one end of the bran suction pipe for the bran generated in the main body of the grain milling machine, one end of the bran feeding pipe is connected to the discharge port of the bran removing fan, and the other end of the bran feeding pipe is connected to a cyclone, etc. The bran generated inside the grain milling machine is sucked by the bran removal fan through the bran suction pipe along with the wind, and the bran is sent to the separator through the bran feeding pipe, and the bran is transferred to the separator. Japanese Patent Publication No. 1989-1989 discloses a grain grinding and bran removing device for a grain milling machine which separates bran from the wind and discharges it from a bran discharge port.

Problems to be Solved by the Invention However, in the conventional rice milling machine bran removal device, the exhaust port of the cyclone 3 is opened in the rice milling machine body 1, and the exhaust flow of the cyclone 3 discharged from the exhaust port of the cyclone 3 is Since fine rice bran that could not be completely removed by the cyclone 3 was mixed in, there was a risk that the inside of the rice milling machine body 1 would be contaminated and cause a malfunction.

Moreover, the one in which the cyclone was attached to the outside of the rice polishing machine main body 1 was unfavorable in terms of appearance.

Furthermore, what is stated in Japanese Patent Publication No. 39-1989,
The outlet of the separator is connected to the outlet of the main body of the grain milling machine via the blower pipe, and the clean separated air from which the bran has been separated is sent from the outlet of the separator to the outlet of the grain miller through the blower pipe to the main body of the grain miller. The grain is fed into the grain milling/grinding section in the main body of the grain milling machine through the mouth, and the air is constantly circulated through the bran removal section and the grain milling/grinding section. Separated air mixed with fine bran is constantly supplied from the air outlet to the grain milling and grinding section, which causes the temperature of the grain milling and grinding section to rise, which has an adverse effect on the grain being milled. There is also a risk that fine bran may be deposited between the ventilation opening and the grain milling/grinding section, especially if operation continues with the bran discharge port of the separator clogged with bran. This was an inconvenient problem as it would accumulate between the ventilation opening and the grain milling/grinding section.

It is an object of the present invention to address the above-mentioned problems and to
The bran generated in the grain milling section and collected in the bran collecting trough is fed into the cyclone through a conduit, and the cyclone separates the bran from the air and removes the bran that could not be completely removed by the cyclone from the cyclone exhaust port. The exhaust flow containing fine bran is guided into the hopper along the guide plate, and the separated air mixed with fine bran is not circulated to the bran removal section and the grain milling/grinding section, and the cleaning process is carried out with clean air. Even if the cyclone continues to operate with the bran discharge port clogged with bran, the bran will return to the hopper along the guide plate along with the exhaust flow.
Only clean air can be sent to the grain milling/grinding section, and the fine bran contained in the exhaust air will not be scattered inside or outside the rice milling machine, keeping the inside and outside of the rice milling machine clean. To provide a bran removing device for a rice milling machine which does not require a separate cyclone to be attached to the outside of the rice milling machine body, prevents the cyclone from being exposed outside the rice milling machine body, and is preferable in appearance.

Means for Solving the Problems The bran removal device of the rice milling machine of the present invention includes a hopper provided inside the rice milling machine main body, a cyclone arranged on the side of the hopper, and a grain polishing section provided below the hopper. In the rice miller's bran removing device, in which a bran collecting trough arranged at the lower part of the grain milling section is connected to the cyclone via a conduit, the exhaust flow of the cyclone is directed to the upper edge of the rice milling machine body into the hopper. The structure is characterized in that a guide plate facing the exhaust port of the cyclone is provided to guide the cyclone.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIG. 2, 13 is a hopper provided inside and above the rice milling machine main body 1, a cyclone 14 is vertically provided on the side of the hopper 13, and a grain polishing section 4 is provided below the hopper 13. Grain milling department 4
A bran collection gutter 5 and a fan 6 are respectively arranged at the lower part of the rice milling machine body 1, a hopper 13 is arranged on the front side 1a of the rice milling machine body 1, and a cyclone 14 is arranged on the back side 1b of the rice milling machine body 1 in parallel with the hopper 13. It is located.

Inside the milling chamber 7 of the grain milling section 4, a hollow shaft 9 communicating with the fan 6 is provided, and on the outside of the hollow shaft 9 located inside the milling chamber 7 is a stirring cylinder 8 having an ejection hole.
The grain milling section 4 is provided with a refined product outlet 17 that opens on the front side 1a of the rice milling machine main body 1, and a bran collection gutter 5 disposed at the lower part of the grain milling section 4 is connected to the rice milling section 4 through a conduit 11. The fan 6 is connected via a conduit 12 to a cyclone 14 .

The lower end 14a of the cyclone 14 is connected to a bran discharge port 15 opened on the back side 1b of the rice mill main body 1, which is the opposite side of the refined product discharge port 17.
A bran bag 18 is connected to the lower end of the bran discharge port 15 that protrudes to the outside on the back side 1b of the rice milling machine, and an exhaust port 14 is connected to the upper end of the cyclone 14 that opens at the top of the rice milling machine main body 1.
A curved guide plate 16 facing the exhaust port 14b of the cyclone 14 is provided on the upper edge 1c of the back side 1b of the rice milling machine main body 1.
The exhaust flow of the cyclone 14 discharged from the exhaust port 14b is guided to flow into the hopper 13 along the curve of the guide plate 16.

Next, the operation of this embodiment will be explained.

When brown rice is put into the hopper 13 at the upper part of the rice milling machine body 1, the brown rice enters the milling chamber 7 of the grain milling section 4 at the bottom of the hopper 13, and the stirring cylinder 8 in the milling chamber 7 removes the bran while stirring the brown rice. Then, the bran that falls off from the brown rice passes through the hollow shaft 9 that communicates with the fan 6 to the stirring cylinder 8.
The rice grains in the milling chamber 7 are collected in the rice bran collection trough 5 at the bottom of the grain milling section 4 by the wind blowing out from the spout hole, and the refined grains in the milling chamber 7 are sent to the outside of the rice milling machine main body 1 through the grain outlet 17 on the opposite side to the rice bran discharge port 15. is discharged.

After that, the bran in the bran collection gutter 5 is transferred to the conduit 11 and the fan 6.
The rice bran is sent through the conduit 12 to the cyclone 14 which is parallel to the hopper 13, and after being separated into bran and air in the cyclone 14, the bran is transferred to the cyclone 14.
From the bran discharge port 15 at the lower end 14a of the rice milling machine main body 1
The bran is collected in the bran bag 18 at the bottom of the bran discharge port 15, and the exhaust flow containing fine bran flows from the exhaust port 14b at the upper end of the cyclone 14 while being guided along the guide plate 16, and is then discharged again. Enter Hopper 13.

Effects of the Invention As described above, according to the rice bran removal device of the rice milling machine of the present invention, a hopper is provided inside the rice milling machine body, a cyclone is arranged on the side of the hopper, and a rice bran is removed at the bottom of the hopper. A grain section is provided, and a bran collecting trough placed at the bottom of the grain milling section is connected to the cyclone via a conduit, and a guide plate is installed on the upper edge of the rice milling machine body to direct the exhaust flow of the cyclone into the hopper. By providing the exhaust port facing the exhaust port, the bran generated in the grain milling section and collected in the bran collecting trough is sent into the cyclone through the conduit, and the cyclone separates the bran from the air. The exhaust flow containing minute bran that could not be completely removed by the cyclone from the mouth is guided into the hopper along the guide plate, and the separated air containing minute bran is circulated to the bran removal section and grain milling/grinding section. This allows the grain to be milled, ground, and bran removed using clean air, and even if the cyclone's bran discharge port is clogged with bran and the operation continues, the bran will flow along with the exhaust flow to the guide plate. It returns to the inside of the hopper along the hopper and sends only clean air to the grain milling/grinding section, and the fine bran contained in the exhaust air is not scattered inside or outside the rice milling machine body, so the rice milling The inside and outside of the rice polishing machine body can be kept clean, and there is no need to separately install a cyclone on the outside of the rice polishing machine body, so the cyclone is not exposed to the outside of the rice polishing machine body, which improves the appearance.

In addition, if the bran discharge port of the cyclone is provided on the opposite side of the refined product discharge port of the grain milling section, the scattered bran will not be mixed into the refined product, and high-quality polished rice can be supplied.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a bran removing device of a conventional rice mill, FIG. 2 is a side sectional view of a bran removing device of a rice milling machine according to an embodiment of the present invention, and FIG. It is a partially broken back view. 1...Rice polishing machine main body, 1a...Front side, 1b...
Back side, 1c...Top edge, 2...Hopper, 3...
Cyclone, 3a... one end, 4... grain milling section, 5...
... Shunuhi, 6... Juan, 7... Seishiro room, 8...
Stirring cylinder, 9... hollow shaft, 10... nozzle hole, 11...
... Conduit, 12 ... Conduit, 13 ... Hopper, 14
...Cyclone, 14a...Lower end, 14b...
Exhaust port, 15...Branch discharge port, 16...Guidance board, 1
7... Semen outlet, 18... Rice bran bag.

Claims (1)

[Claims] 1. A hopper is provided inside the rice milling machine main body, and a cyclone is provided on the side of the hopper,
In the bran removal device of a rice milling machine, a grain polishing section is provided at the lower part of the hopper, and a bran collection gutter provided at the lower part of the grain milling section is connected to the cyclone via a conduit, in which A rice bran removing device for a rice milling machine, characterized in that a guide plate for guiding the exhaust flow of the cyclone toward the inside of the hopper is provided facing the exhaust port of the cyclone.