JPH08131853A - Rice milling machine with upper and lower changeover type tanks - Google Patents

Abstract

PURPOSE: To obtain a rice milling machine featuring good workability without increasing a floor area by installing a holding hopper to a lower tank and making the discharge port of this lower tank communicate with the intake port of an ascending conveyor and the discharge port of this ascending conveyor with an upper tank, respectively. CONSTITUTION: The upper tank 2 is installed to the upper part of a machine body 1 equipped with a rice milling mechanism 3 and the lower tank 6 is installed to the lower part. The holding hopper is installed to the lower tank 6. The discharge port 8 of the lower tank 6 is communicated with the intake port 9a of the ascending conveyor 9 and the discharge port 9b of the ascending conveyor 9 with the upper tank 2, respectively. The unpolished rice held in the lower tank 6 by the holding hopper is transferred by the ascending conveyor 9 to the upper tank 2 and is supplied to the rice milling mechanism 3, where the unpolished rice is milled; thereafter, the rice is returned again to the lower tank 6 and is again transferred by the ascending conveyor 9 to the upper tank 2 so as to be polished. The polished rice is taken outside when the prescribed degree of polishing is attained by repeating this operation several times. The rice milling operation is continuously executed by circulating the grains in such a manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stake transfer device for a rice polishing machine.

[0002]

2. Description of the Related Art In a conventional rice milling machine, there is an example in which a rice milling mechanism is arranged substantially in the center of a machine body and two upper tanks A and B are provided above the rice milling mechanism. In this case, brown rice is supplied to the rice-polishing mechanism from one upper tank A, the rice-rice discharged from the rice-polishing mechanism is lifted by a rising conveyor and temporarily stored in the other upper tank B, and the rice-polishing work of the upper tank A is completed. At the stage, the milled rice in the other upper tank B is fed to the milling mechanism again, and this is repeated twice or several times to make completely milled rice. Then, a bran collecting means and a milled rice storing means are provided below the rice milling mechanism to take out the bran and the milled rice which have been polished. In order to polish a large amount of brown rice using this rice polishing machine, the upper tanks A and B must be large. However, when laying brown rice in the upper tank, the height of the rice mill cannot be designed too high because of its workability, and the width and depth of the rice mill must be increased to increase the capacity of the upper tank. There is no choice but to increase the installation floor area of the machine, which causes a problem of unnecessarily occupying space. In addition, due to the height limitation of the rice storage means provided below the rice polishing mechanism, it is impossible to use a large bag having a large length, and therefore it is necessary to constantly monitor the rice so that the rice cannot overflow during the bag packing.

In order to solve this problem, actual fairness 2-4
In the 3485 publication, a brown rice tank for storing brown rice is provided at the rear of the machine body, the discharge port of this tank is connected to the inflow port of the ascending conveyor, and brown rice is supplied from the brown rice tank to the rice polishing mechanism by the ascending conveyor to perform rice polishing work. , A rice mill storage unit for storing milled rice is provided below the rice milling mechanism. As a result, the height of the rice milling machine can be reduced to facilitate the filling of brown rice into the brown rice tank, and a large bag having a relatively high length can be used for discharging the polished rice. However, in this case, once milled rice is packed in a bag, and when polishing is insufficient and the rice is further polished twice or several times, it is packed in the bag again and put into a brown rice tank. Since work is continued, this repetitive work becomes a burden, and work inefficiency cannot be avoided.

[0004]

In order to solve the above-mentioned conventional problems, the present invention does not increase the installation floor area and, in the case of insufficient whitening, continuously polishes rice without labor. It is an object of the present invention to provide a rice polishing machine with good workability that can continue working.

[0005]

In order to achieve the above object, according to the present invention, an upper tank is installed at an upper part of a machine equipped with a rice polishing mechanism, a lower tank is installed at a lower part thereof, and a tension hopper is attached to the lower tank. The discharge port of the lower tank was connected to the intake port of the ascending conveyor, and the discharge port thereof was connected to the upper tank.

[0006]

With the above-mentioned structure, in the present invention, brown rice is put into the lower tank from the pull-in hopper at the bottom of the machine, and this brown rice is transferred to the upper tank at the top of the machine by the ascending conveyor. Then, brown rice is supplied from the upper tank to the rice polishing mechanism to be whitened, then returned to the lower tank and again transferred to the upper tank by the ascending conveyor for whitening. Do this operation 2
Repeat once or several times, and take it out of the machine when the specified whiteness is reached. In this way, the grains are circulated and alternately stored temporarily in the upper tank and the lower tank, and the rice polishing work is performed twice or several times continuously.

[0007]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a front sectional view showing the configuration of an embodiment of the present invention, and FIG. 2 is a right side sectional view thereof, in which a machine 1 is provided with a rice polishing mechanism 3. An upper tank 2 is provided above the rice polishing mechanism 3, a hopper 4 is formed at the bottom of the upper tank 2, and the rice hopper 3 communicates with a rice polishing shutter 5 provided at the lower end of the hopper 4. A triangular pyramid-shaped lower tank 6 having an open upper surface is provided below the rice polishing mechanism 3 and below the machine body 1, and a lower tank discharge port 8 having a lower tank shutter 7 at the lower end thereof is opened. It communicates with the intake 9a of the ascending conveyor 9 provided on the side. The discharge port 9b is provided on the upper part of the ascending conveyor 9.
Is provided and opens at the upper part of the upper tank 2. Upper tank 2
Attach the upper cover 10 that doubles as the top plate of the body 1 to the upper surface of
Further, an overflow port 11 is provided near the rising conveyor 9 on one side of the inner surface of the upper tank 2. The opening surface of the overflow port 11 is formed such that the rising conveyor 9 side is lower than the lower end of the discharge port 9b of the rising conveyor 9 and the opposite side is inclined higher than that. Then, the overflow chute 11a is projected downward through the machine wall of the upper tank 2, the upper end thereof is connected to the overflow port 11, and the lower end discharge port of the overflow chute 11a is looked above the lower tank 6.

The rice polishing mechanism 3 comprises a whitening roll 3a and a whitening cylinder 3b arranged on the outer periphery of the whitening roll 3a. The whitening roll 3a has a grain feeding spiral 3c and a plurality of whitening protrusions 3d. White barrel 3
A bran-removing net portion 12 for discharging bran is formed on the lower side of b, and is connected to one intake port 13a of an intake fan 13 provided inside the machine body 1 through a bran collecting cylinder 12a provided below. White barrel 3b
Is provided with a rice polishing outlet 3e at one end thereof and a resistance plate 3f is provided to close the rice polishing outlet 3e, and the resistance plate 3f is urged in a "closed" direction by a spring 3g so as to be adjustable. A drain gutter 14 is provided on the outside of the milled rice discharge port 3e so as to be inclined downward, a bottom surface of the drain gutter 14 is formed in a mesh shape, and is connected to an openable rice milled chute 15 provided on the left side surface of the machine body 1. Rice cleaning shoot 1
5 is connected to the discharge gutter 14 in the open state, and in the closed state,
It is connected to the lower tank 6 through a rice return chute 16 through a gap with the discharge gutter 14.

A drain gutter 14 is provided above the outside of the rice polishing outlet 3e.
Is covered with a gutter cover 17, and a suction port 18 such as a rice husk is connected to the inside of the gutter cover 17 and is connected to one of the intake ports 13a of the intake fan 13. Intake port 1 of intake fan 13
3a includes a pipe line connected to the bran collecting tube 12a and a suction port 1 for rice husks and the like.
8 are joined to each other, and a distribution damper 19 for adjusting distribution of the intake air amount is provided at the joint. A motor 21 is arranged in the lower part of the machine body 1, and the motor pulley 21a is moved to the whitening roll 3
The V-belt 21 is attached to the rice milling pulley 21b attached to the right end of a.
c is stretched, and further, the V belt 21c is stretched from the motor pulley 21a to the pair of tension pulleys 21d of the rising conveyor 9. An intake fan pulley 21e is coaxially fixed to the whitening roll 3a, and a V belt 21c is stretched between it and a fan pulley 21f fixed to the rotary shaft of the intake fan 13.

Then, brown rice (or unpolished rice) is put in the lower tank 6 and the motor 21 is started. When the lower tank shutter 8 is opened, brown rice is discharged from the intake 9a of the ascending conveyor 9 through the ascending conveyor 9 to the upper tank 2 through the discharge port 9b and is deposited. Here, the brown rice scatters obliquely upward from the discharge port 9b of the rising conveyor 9 along the discharge guide 9c, and accumulates higher as the distance from the rising conveyor 9 increases.
Therefore, the overflow of brown rice starts from the higher side of the overflow port 11 opposite to the rising conveyor 9. In this embodiment, the position of the overflow port 11 on the opposite side of the rising conveyor 9 on which brown rice accumulates high is formed high,
The amount of expansion in the upper tank 2 can be increased. On the other hand, the overflow port 11 on the side of the ascending conveyor 9 is formed lower than the outlet 9b of the ascending conveyor 9, so that clogging of the outlet 9b can be prevented. When the lower tank 6 is emptied and all the brown rice can be transferred to the upper tank 2, the lower tank shutter 7 is closed, the rice polishing shutter 5 of the upper tank 2 is opened, and the brown rice is supplied to the white polishing cylinder 3b of the rice polishing mechanism 3. And white roll 3a
While the brown rice is fed to the tip end by the grain feeding spiral 3c by the rotation of, the rice is milled between the whitening barrel 3b and the whitening protrusion 3d of the whitening roll 3a. At this time, the generated bran dropped to the bran collecting cylinder 12a from the bran removing mesh portion 12 provided on the lower side of the whitening cylinder 3b, further passed through one intake port 13a of the intake fan 13 and provided outside the machine body 1. It is sent to the bran storage tank 20.

On the other hand, the milled rice is discharged from the milled rice discharge port 3e to the resistance plate 3
When the inclined discharge gutter 14 is pushed out against the spring 3g of f and moves the inclined discharge gutter 14, the intake fan 13 passes through the suction port 18 such as rice husks, and the mesh of the discharge gutter 14 removes rice and husks and bran. It is separated and removed, and the milled rice is sent to the milled rice discharging chute 15. The rice mill discharge chute 15 checks the rice mill that flows out in an open state in advance, and if it is sufficiently milled, it flows out as it is and is stored in a prepared bag outside the machine body 1. When the milling is incomplete, the rice cleaning chute 15 is closed, the rice is dropped from the gap between the discharge gutter 14 and the rice cleaning chute 15, and the rice returning chute 16 is used to lower the tank 6.
To house. The semi-polished rice that has returned to the lower tank 6 is in the lower tank 6 until the polished rice in the upper tank 2 is finished.
When the upper tank 2 is emptied and the lower tank shutter 7 is opened, the lower tank shutter 7 is carried to the upper tank 2 by the ascending conveyor 9 and the rice is introduced into the rice polishing mechanism 3 again. As described above, when the pearling is incomplete, the rice can be milled twice or many times as it is without any manual labor.

Further, in this embodiment, the front of the lower tank 6 is opened, and the tension hopper 22 is detachably attached to the lower tank 6 so as to be integrated with the lower tank 6. As a whole, it is formed into a triangular pyramid shape facing downward toward the lower tank discharge port 8, and the stored grains are discharged from the lower tank discharge port 8 without any residue. further,
The cover 23 that covers the tension hopper 22 is attached to the tension hopper 22.
Is rotatably attached to the front edge of the cover 23 and struts 24 are rotatably attached to both ends of the cover 23. The column 24 is formed in an inverted L shape in a side view and a U shape in a front view. When the grain is first applied, the cover 23 is put in and the front edge of the hopper 22 is rotated to open it.
Hold the rice horizontally with the cover 23 as a cradle and put the brown rice in the bag as it is.
Put in 2. By placing the brown rice in the bag as it is on the pedestal, it is possible to easily attach the heavy brown rice bag without lifting it. FIG. 3 shows another embodiment of the support column 24 in which a support column 24 having an L shape in a side view and a U shape in a front view is rotatably supported by a free end of a cover 23. When sticking the grain, the cover 23 is stretched and opened by rotating the front edge of the hopper 22 about the axis, and the front edge of the cover 23 is supported by the support columns 24 to keep it horizontal. The same effect can be obtained by staking. Also cover 2
When 3 is folded back and closed on the hopper 22, the support column 24 is pulled toward the machine body 1 side and does not take an extra floor area.

[0013]

As described above, in the present invention, the upper tank and the lower tank are provided on the upper and lower sides of the rice-polishing mechanism so that the installation area of the rice-polishing machine can be suppressed and the space can be saved. The brown rice that has been stretched is conveyed to the upper tank by an ascending conveyor and supplied to the rice polishing mechanism for rice polishing,
When the whitening is insufficient, it is collected in the lower tank, conveyed again to the upper tank by the ascending conveyor, and the rice is continuously milled as it is, whereby the workability of the rice polishing work can be improved and the labor can be saved. Further, in the present invention, since the position of the overflow port on the opposite side of the rising conveyor on which brown rice accumulates high is formed high, the amount of swelling in the upper tank can be increased, and the rising conveyor side of the overflow port discharges the rising conveyor. Since it is formed lower than the outlet, it is possible to prevent clogging of the outlet.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a sectional view of the right side surface of FIG.

FIG. 3 is a right side sectional view showing another embodiment of the tension hopper.

[Explanation of symbols]

 1 Aircraft 2 Upper tank 3 Rice milling mechanism 3a Whitening roll 3b Whitening cylinder 3c Graining spiral 3d Whitening protrusion 3e Rice milling outlet 3f Resistor plate 3g Spring 4 Hopper 5 Rice polishing shutter 6 Lower tank 7 Lower tank shutter 8 Lower tank outlet 9 Ascending conveyor 9a Inlet 9b Discharge port 9c Discharge guide 10 Top cover 11 Overflow port 11a Overflow chute 12 Debranching net part 12a Collecting bran tube 13 Intake fan 13a Intake port 14 Discharge gutter 15 Rice milling chute 16 Rice return chute 17 Gutter cover 18 Suction port for rice husks 19 Distribution damper 20 Bran storage tank 21 Motor 21a Motor pulley 21b Rice milling machine pulley 21c V-belt 21c 21d Tension pulley 21e Intake fan pulley 21f Fan pulley 22 Tension hopper 23 Cover 24 Strut 25 Free fulcrum

Front page continued (72) Inventor Tomohiro Sakashita, Wakasugi, No. 2, Kamishichi-cho, Nakashinagawa, Toyama Prefecture, Marumas Machinery Co., Ltd.

Claims (4)

[Claims] 1. An upper tank and a lower tank are installed in an upper part of a machine equipped with a rice polishing mechanism, respectively, and a hopper is attached to the lower tank, and a discharge port of the lower tank is an intake port of an ascending conveyor. In addition, a rice milling machine with a vertically switchable tank in which the discharge port of the ascending conveyor communicates with the upper tank. 2. The up-down switchable rice polishing machine with a tank according to claim 1, wherein a tension hopper is detachably attached to the lower tank. 3. A vertically switchable type according to claim 1, wherein a cover for covering the opening is pivotally attached to the projecting hopper so as to be openable and closable, and a column for horizontally supporting the cover is attached to the cover when the cover is opened. Rice mill with tank. 4. The overflow port of the upper tank is opened near the discharge port of the ascending conveyor, and the upper end of an overflow chute that penetrates the upper tank and communicates with the lower tank is connected to the overflow port, and is close to the ascending conveyor. 2. The up-down switchable rice polishing machine with a tank according to claim 1, wherein the opening edge of the overflow port is formed lower than the lower end of the discharge port of the rising conveyor, and the opening edge farther from the rising conveyor is formed higher than that.