JP2000126034A - Rice washing and supplying method and rice washing and supplying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate residual rice or residual water in a blower and provide a compact design by performing the force feed of measured rice, in force-feeding the measured rice to a rice washing tank by a pressurized air flow, while laying the rice discharge port of the rice washing tank in the blocked state and partially releasing the pressure within the rice washing tank by the pressurized air flow. SOLUTION: In force feed of measured rice by a pressurized air flow by a measured rice force-feeding means 10, the pressure of a rice washing tank 1 is raised by the pressurized air flow, which brings about the turbulence of the measured rice force-fed from the upper part of the tank 1 within the rice washing tank 1, causing crush of rice. Therefore, a part of the pressure within the rice washing tank 1 is released out of the machine by properly opening an opening and closing valve 22A, so that an atmospheric pressure difference can be generated to prevent the internal pressure rise of the rice washing tank 1. The opening and closing valve 22A is used as a pressure reducing means. The force feed of the measured rice to the rice washing tank 1 by the pressurized air flow is performed in an air volume suitable to the quantity of the measured rice by regulating the opening of a damper 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice washing supply method and a rice washing supply apparatus, and is used as a commercial rice cooking system or a home rice cooking system.

[0002]

2. Description of the Related Art A conventional rice cooking system, whether for business use or for home use, is almost fully automated by programming rice weighing, washing rice with weighed rice, and supplying water to a rice cooker with added or reduced water. (For example, Japanese Utility Model Publication No. 51-28367,
-54918, JP-A-6-269353, etc.).

[0003]

In a conventional rice cooking system, a rice storage tank, a rice washing tank, and a rice cooker are arranged in a vertical direction, and the measured rice from the rice storage tank is put into the rice washing tank by its own weight, and the rice washing tank. Rice washing was basically done by dropping the rice weight into the rice cooker together with the rice cooking water, and in some cases, the rice storage tank was provided at the bottom, and the rice was washed into the rice washing tank by an elevator.

In any case, when the rice storage tank, the rice washing tank, and the rice cooker are arranged in the vertical direction, they become bulky in the height direction. However, there is a fatal problem that it is difficult to supply rice to the rice storage tank due to its bulkiness, and it is difficult to incorporate the rice into a system kitchen for home use. For household use, some rice storage tanks and rice washing tanks are housed in one housing, and a rice cooker is provided in this housing so that the rice cooker can be freely inserted and removed, and some of them have been put into practical use. However, since the rice cooker is housed in the housing during the cooking of rice, heat, steam, etc. of the rice cooking may be trapped in the housing, causing various adverse effects.

[0005] Further, there has been a proposal to reduce the size of a rice cooking system by partially supplying rice (measuring rice, washed rice) or the like by an air flow (pressure difference). However, since the suction and discharge are performed by a blower (blower), rice always passes through the blower, and there is a fatal problem that rice remains in the blower.

Therefore, the present invention provides a blower (one of pressurized air flow generators) by using a pressurized air flow when pumping rice and water using an air flow (pressure difference). An object of the present invention is to provide a rice washing supply method and a rice washing supply apparatus that can be designed compactly without any remaining rice, residual water, and the like, and that is compatible with a commercial rice cooker or a household rice cooking system.

[0007]

The present invention employs the following technical means in a method for supplying rice for washing, in which the measured rice is washed in a rice washing tank and then the rice is fed to a rice cooker. Claim 1
When the metered rice is pumped into the rice washing tank by a pressurized air flow, the rice is fed while the rice discharge port of the rice washing tank is closed and the pressure in the rice washing tank is partially released by the pressurized air flow. Then, the metered rice is washed in the rice washing tank in a state where the pressurized air flow is stopped, and then the rice washed is pressed from the rice washing tank by the pressurized air flow from the rice discharge port of the rice washing tank. The method is characterized in that rice is discharged and the discharged rice is pressure-fed to a rice cooker by a pressurized air flow.

As described above, when the metered rice is pressure-fed to the rice-washing tank by the pressurized air flow, the rice-discharge port of the rice-washing tank is closed and the pressure in the rice-washing tank due to the pressurized air flow is partially released. In addition to suppressing excessive rise in the internal pressure of the rice washing tank, turbulence of the pumped metered rice in the rice washing tank is suppressed, and rice grains collide with each other in the rice washing tank. Is gone.

In addition, even when the rice is washed, the rice is reliably fed to the rice cooker by pressurization and pressurized air flow. Furthermore,
The method for supplying rice washing according to claim 2 is the method according to claim 1, wherein the rice washing water is added to the rice washing tank when the measured rice is washed in the rice washing tank and the rice washed in the colander is discharged from the rice discharging port. After the water is supplied, the rice cooked water and the rice washing are pressure-fed to a rice cooker by a pressurized air flow.

[0010] With such a configuration, rice washing and rice cooking water corresponding to (appropriate for) the amount of cooked rice can be pressure-fed to the rice cooker with a soft touch by a pressurized air flow, and the rice cooked water serves as a cushion of rice grains during the pressure feeding. It works to prevent rice crushing and pressurize. Further, in the rice washing supply method according to claim 3, the rice washing in the rice washing tank according to claim 1 or 2, wherein the rice washing in the rice washing tank is performed when the measured rice is washed in the rice washing tank and the rice washed in the colander is discharged from the rice discharging port. It is characterized by stirring.

[0011] With this configuration, when the rice washing or the rice washing and the cooking water are pressurized in the rice washing tank, the pressing force acts uniformly on the rice grains and the like, and the rice is quickly and smoothly discharged. It is. Furthermore, the rice washing supply method according to claim 4 is the method according to any one of claims 1 to 3 above, wherein the measured rice is washed in the rice washing tank, and the washed rice in the colander is discharged from the rice discharge port. With a portion of the rice-washing water being supplied as it is as is, or while stirring the rice-washing water in the rice-washing tank, most of the entire amount of the rice-washing is discharged. Rice cooking water is supplied, and the remaining rice and rice cooking water are pressure-fed to a rice cooker by a pressurized air flow.

By adopting such a configuration,
Measured rice and rice washing do not pass through a pressurized air flow generator (blower, pump, etc.), so that rice washing and rice cooking water suitable for the amount of cooked rice can be pumped while eliminating waste of water and rice grains. Less rice is left in the tank. Moreover, according to the rice washing supply method according to claim 5,
The method according to any one of claims 1 to 4, characterized in that the pressure is supplied while adjusting the air volume (wind pressure) of the pressurized air flow. Total amount while preventing water scattering (washing rice and cooking water)
Can be reliably pumped.

Further, according to the present invention, in a rice washing supply device for washing measured rice in a rice washing tank and then feeding the washed rice to a rice cooker, the following technical measures are taken in order to achieve the above object. . In other words, the rice washing supply device according to claim 6 has a rice washing tank having a rice discharging port which can be opened and closed at the bottom and a stirring means therein, and pressurized air is fed to the rice washing tank by a pressurized air flow. Metering rice pumping means provided with a first pipe line and a pressurized air flow generator, pressure reducing means provided in the rice washing tank for partially releasing pressure in the tank, and the rice washing tank A second conduit for pressure-feeding a pressurized air stream provided between the rice discharge port and the rice cooker toward the rice cooker, and water supply means for the rice washing tank; Is connected to the rice washing tank to pressurize the inside of the rice washing tank from above by a pressurized air flow.

By adopting such a configuration,
The above-described methods of claims 1 to 4 and the operation and effect achieved thereby can be achieved with a compact design. In addition, in claim 6, it is preferable that a rice storage tank having a measuring means be provided at a lower portion, and an outlet of the measuring means be connected to the first conduit (claim 7). In Item 6 or 7, since the first conduit is provided with a damper capable of adjusting the air volume (wind pressure) of the pressurized air flow, it is possible to perform pressure feeding with an air volume (wind pressure) suitable for the amount of cooked rice. Thus, scattering of water, rice, etc. could be prevented (claim 8).

Further, in the above-mentioned claims 6 to 8, a rice washing tank having a rice discharging port in a lower part and a rice storing tank having a measuring means in a lower part are housed side by side in a housing.
A pressurized air flow generator is housed in the housing and at the bottom of the rice storage tank, and a rice cooker is arranged in front of the housing, so that it can be incorporated into a system kitchen for home use. Commercially available rice cookers can now be used, regardless of whether they are electric or gas.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a method and an apparatus for supplying rice washing according to the present invention will be described with reference to the drawings. FIG. 1 is a first embodiment conceptually exemplifying the entirety of the rice washing supply device of the present invention.

In FIG. 1, a rice discharging port 2 which can be opened and closed
And a rice storage tank 3 having a weighing means 4 in the lower part are arranged side by side in the left-right or front-back horizontal direction, and both tanks 1, 3 are provided below the cylindrical body with a funnel 1A,
3A is formed. The rice storage tank 3 has an openable and closable lid 5 at an upper portion thereof. The lid 5 can be entirely or partially opened so that rice can be supplied from above and the funnel 3A is not shown. However, a rice storage amount sensor is provided as, for example, a two-tiered configuration.

Weighing means 4 provided at the lower part of the rice storage tank 3
In the box-shaped hermetic chamber body 6, a cylindrical measuring drum 7 having a rice cutout 7A in a part of its circumference is rotatable around a horizontal axis by a drive motor 8 shown in FIG. The measuring drum 7 is a positive-displacement metering means that receives rice from the cutout 7A by rotation of the measuring drum 7 and discharges the measured rice through the chute 9 when the cutout 7A faces downward. The weighing value is set according to the number of rotations.

The upper portion of the rice washing tank 1 and the chute 9 of the rice storage tank 2 are connected to each other by a metered rice pumping means 10. The metered rice pumping means 10 feeds the metered rice into the rice washing tank 1 by a pressurized air flow. It comprises a first conduit 11 for pressure feeding and a pressurized air flow generator 12. The pressurized air flow generator 12 is composed of a turbo-type or capacity-type blower (fan, blower) or a compressor. In the figure, a radial type fan 12A is provided inside a casing of a drive motor 1 shown in FIG.
1 by means of a rotary drive in the direction of arrow A in FIG. 1 around the horizontal axis by the airflow in the direction of arrow B in FIG. Pressure can be fed from the upper part of the rice storage tank 1 into the tank 1 through the conduit 11 as indicated by an arrow C.

The chute 9 is directed downward in the direction of arrow B with respect to the first conduit 11 so that a part of the metered rice adhered to the chute 9 can be first air-flowed by the air flow B. Although this is advantageous in that it can be introduced into the conduit 11, this directivity is, of course, not a problem if the inclination of the chute 9 is greater than the angle of repose. The first conduit 11 between the communication part between the chute 9 and the first conduit 11 and the generator 12 is provided with a damper 14 for adjusting the air volume (wind pressure). Numeral 14 is movable in the radial direction of the first conduit 11.

The rice washing tank 1 has a stirring means 15 therein. The metering is performed by driving (starting) the stirring means 15 and supplying water through the water supply means 16 to the rice washing tank 1 by pressure. Rice can be washed (washed).
In the illustrated example, the stirring means 15 includes a plurality of stirring rods (blades) 19 having a radially extending portion and an axially (vertically) extending portion on a driving shaft 18 which is rotated about a vertical axis by a driving motor 17. It shows that they are attached, but of course stirring means 1
As for 5, cleaning may be performed by circulating rice grains in the rice washing tank 1 by a jet water flow.

The rice discharge port 2 is a funnel 1A of the rice washing tank 1.
In addition, there is provided a drain box 21 inside which a funnel 20 having a large number of holes (mesh) through which water, bran and the like can pass and rice grains cannot pass through is freely detachable, and an open / close valve 22A is provided on a side of the box 21. A drain pipe 22 is connected to the drain pipe 21 to discharge washing water containing sugar and the like to the outside of the apparatus. A second pipe 23 communicating with the funnel 20 is provided at the bottom of the drain box 21.
Is connected, and the on-off valve 23 provided in the pipe line 23
The rice washing (washed rice) can be pressure-fed to the rice cooker 24 of the electric or gas type rice cooker above the rice discharge port 2 through A by the pressure difference as shown by arrows D and E by the pressurized air flow. .

The water supply means 16 is for supplying the washing water and the cooked rice water (the amount of water suitable for the amount of cooked rice) to the rice washing tank 1, and a pressure water source such as a water tap having a cock or the like or a water storage tank or the like. A water supply hose (pipe) 26 connected to a water source 25 is provided with a flow rate sensor 27 and an on-off valve 28. In the rice washing tank 1, a water supply tool 29 such as a nozzle or a shower is removed from an end of the hose 26. It is provided freely.

The metering motor 8, the blower motor 13,
Rice washing motor 17, each open / close valve (solenoid valve) 22A, 23A,
28 and the flow rate sensor 27 can be automatically remotely controlled by a rice cooking program. Next, a series of operations (actions) according to the first embodiment shown in FIG. 1 will be described.

A predetermined amount of rice is stored in the rice storage tank 3. When an operation signal (work start signal) such as a start button or a start button is turned on, the amount of rice corresponding to a requested or requested amount of cooked rice is determined. The measured rice is measured by the weighing means 4, and the weighed rice is pressure-fed to the rice washing tank 1 through the first conduit 11 as indicated by arrows B and C by the activation of the pressurized air flow generator 12 (at this time, the rice is washed) The rice discharge port 2 of the tank 1 is an on-off valve 23A
Is closed by closing the valve).

During the pressure feeding of the metered rice, the pressure loss caused by the metering drum 7 and the like causes the cutout 7A of the drum 7 to move into the rice storage tank 3
By setting the side (the state of FIG. 1), rice in the tank 3 is less likely to be sucked by the air flow. When the metered rice is pumped by the pressurized air flow by the metered rice pumping means 10, the rice washing tank 1 is pressurized by the pressurized air flow and the like. Turbulence, etc., which is the cause of broken rice.

Therefore, part of the pressure (air) in the rice washing tank 1 is released outside the machine by opening the on-off valve 22A appropriately, and a pressure difference is generated there. The on-off valve 22A
These are the pressure reducing means. Rice washing tank 1
Of the metered rice by pressurized air flow to the damper 1
By adjusting the opening degree of 4, the air flow (wind pressure) suitable for the size of the measured rice is performed.

When a predetermined amount of measured rice is pumped into the rice washing tank 1, the operation of the generator 12 is stopped, that is, the rice washing of the metered rice in the rice washing tank 1 is stopped in a state in which the pressurized air flow is stopped. (Washing) process. In the rice washing step, the metered rice is washed through the rotation drive of the stirring means 15 and the supply of the washing water from the water supply means 16 while the pressurized air flow is stopped as described above.

At the time of this rice washing step, the on-off valve 22A is closed and the dirt is circulated through an overflow pipe (not shown) communicating the drain box 21 and the upper part of the rice washing tank 1, so that the rice is washed a plurality of times. By fully opening the drain valve 22A, the sewage including the bran and the like is discharged out of the machine at once through the drain pipe 22. When this rice washing step is completed, the rice washing step (wet rice washing may be performed by stirring means 1) if necessary.
After passing through the work of grinding by the slow rotation of 5), the process proceeds to a colander raising process (the process of expanding and softening rice grains by storing wet rice in the tank 1 for a certain period of time is called colander raising, This raising of the colander may be performed by the rice cooker 24).

When the rice washing step is completed (when the colander raising step is included, after the colander raising step is completed), the on-off valve 22A,
23A is closed, the rice washing tank 1 is kept in a sealed state, and the pressurized air flow is restarted from the top of the rice washing tank 1 through the first pipe 11 by restarting the pressurized air flow generator 12. By pressurizing, the upper part of the rice washing tank 1 is pressurized (pressurized) by the pressurized air flow, and after this pressurization,
By fully opening the rice discharging valve 23A, the rice washing in the rice washing tank 1 is caused to flow by the above-described pressurization and the pressurized air flow into the second conduit 2.
3 is fed to the rice cooker 24 as indicated by arrows D and E (since the washed rice is in a wet state, the rice cooker 24
It is also possible to raise the monkey within).

When the upper part of the rice washing tank 1 is pressurized, it can be pressurized by sending a pressurized air flow to the upper part of the rice washing tank 1 with the open / close valve (rice discharging valve) 23A opened. It is. However, once (temporarily), the opening and closing valve 23A is closed as described above, and the pressurized air flow is fed into the rice washing tank 1 by pressure (temporarily), that is, the upper part of the rice washing tank 1 is pressurized in advance. Opening the rice discharge valve 23A after (pressurizing) is advantageous in terms of pumping wet rice with a pressurized air flow.

Further, after the above-mentioned rice washing step, it is also possible to feed the rice cooked water together with the rice washing by the pressurized air flow through the second pipe 23 together.
That is, after the rice washing process (after passing through the colander raising process), the flow rate sensor 27 of the water supply means 16 measures the amount of water addition and reduction as set, and the cooked water is supplied to the rice washing tank 1 through the water supply device 29. And the rice cooker with the pressurized air flow to the rice washing tank 1 and the open / close valve 23A opened as described above, and the rice cooker through the second conduit 23 by the pressurized air flow. 24.

When the rice cooked water is pumped together with the rice washing, the stirring means 15 is intermittently rotated (meaning repetition of rotation and stoppage), so that the rice washing in the rice washing tank 1 can be pumped in a well-balanced manner. Becomes Further, a part of the cooked rice water is supplied to the rice washing tank 1 and the rice washing 80 to 90
% (Most of the rice washed) and a portion of the cooked water are pressure-fed from the rice discharge port 2 by the above-described pressurization and pressurized air flow (at this time, it is desirable to rotate the stirring means 15 intermittently). , After stopping the driving of the generator 12,
Can be restarted and the remaining cooked water and the remaining rice can be pumped from the rice washing tank 1 by pressurization and pressurized air flow. According to this, the cooked water precedes the rice wash by the pressurized air flow. The pressure feeding is advantageous in that residual rice can be prevented.

It is to be noted that the air volume (wind pressure) needs to be delicately adjusted depending on the difference between the amount of cooked rice and the amount of water added (cooked water). This can be achieved by adjusting the opening of the damper 14. After predetermined rice washing and rice cooking water are supplied to the rice cooker 24, the process shifts to a rice cooking process using an electric or gas type rice cooker.

FIG. 2 shows a second embodiment of the present invention. Since the basic configuration and operation are common to those of the first embodiment, common parts are denoted by common reference numerals, and only the differences will be described below. When the metered rice is pumped to the upper part of the rice washing tank 1 by pressurized air flow by the metered rice pumping means 10 with the rice discharge port 2 of the rice washing tank 1 closed, rice washing is performed as a means for partially releasing the pressure of the rice washing tank 1. A pressure relief means (pressure reducing means) 30 is provided on the upper lid 1B or the upper cylindrical part 1C which can be opened and closed in a sealed state of the tank 1.

That is, as shown in FIG. 2 (B), a group of pores 30A (a mesh is also possible) is formed in the tank 1, and a shutter 3 that can open and close the group of pores 30A is provided.
0B, and the shutter 30B has a mesh 30C.
It is covered with an exhaust box 30E having an attached exhaust port 30D. Therefore, when pumping the measured rice into the rice washing tank 1,
With the shutter 30B fully open, half open, etc.
A: A part of the pressure in the tank 1 is released through the exhaust port 30C, and after washing the rice (after raising the colander), the washed rice is fed to the rice cooker 24 by pressurization of the tank 1 and pressurized air flow. At this time, the shutter 30B is fully closed and the rice washing tank 1
The inside can be sealed.

Further, when pressure-feeding the rice-washed rice (sometimes including rice-cooking water as described above) through the second pipe line 23, the rice-washed rice and the rice-cooked water may be scattered. A scatter prevention means 31 for preventing scatter is provided at the end of the second conduit 23 in a detachable manner. This scattering prevention means 3
As shown in FIG. 2 (C), a skirt-shaped or non-lens-shaped, preferably elastic ring 31A can be adopted as the first member 1. Further, an umbrella is attached to the female screw 31B of the support 31C having the female screw 31B. The male screw 31E of the valve body 31D is screwed so as to be able to move forward and backward.

FIGS. 3 and 4 show the apparatus conceptually shown in FIGS. 1 and 2 incorporated therein. For home use, for example, a system kitchen table, and for business use, the apparatus is placed on a table 32 such as an under table. Portions common to those described above (the configuration and operation of FIGS. 1 and 2) are denoted by common reference numerals. The rice washing tank 1 and the rice storage tank 3 are housed side by side in front and rear or left and right on a horizontal plane or on a surface having a slight vertical difference in a single housing 33. Is provided, the rice cooker 34
An electric or gas rice cooker 35 is mounted on the top.

The lid 36 of the rice cooker 35 can be opened and closed with a hinge 37 as a fulcrum, and can be opened and closed by an opening / closing tool 38 such as an engagement hook that can rotate (swing) around a horizontal axis. ing. In addition, the end 23A of the second conduit 23 is rotatable about the vertical axis, and there is a case where rice is washed (with or without rice cooking water) with the lid 36 opened. 3) is rotatable between a position (dotted line in FIG. 3) for supplying rice cooker 24 (dotted line in FIG. 3) and a position (solid line in FIG. 3) which is off rice cooker 35 during cooking.

Communication between the various controls of the rice cooker 35 and the various controls of the rice washing machine (devices in the housing 33 such as the rice washing tank 1) can be controlled by remote information transmitting means 39 such as a photocoupler. For business use, only the rice cooker 24 may be placed on the rice cooker 34 and the rice cooker 24 may be moved into and out of the rice cooker room of a separately installed box-type rice cooker. In addition, the housing 33 is provided with an opening / closing door or the like so that rice can be supplied to the rice storage tank 3 and the inside can be maintained.

According to the rice washing machine shown in FIGS. 3 and 4, since the rice cooker 35 and the like are provided outside the housing 33, the inside of the housing 33 is not condensed by steam, hot air or the like during cooking. There is no. The pressurized air flow generator 12 may be a blower, a compressor, or various pressurized pumps (a type of compressor).

[0042]

As described above in detail, according to the present invention, a series of operations from weighing to washing and discharging rice can be automatically controlled in a compact design regardless of whether it is for business or home use.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a second embodiment of the present invention,
(A) is an overall configuration diagram, (B) is a pressure relief portion, and (C) is a rice discharging portion.

FIG. 3 is a front view showing a specific arrangement of the device of the present invention.

FIG. 4 is a side view showing a specific arrangement of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice washing tank 2 Rice discharge port 3 Rice storage tank 4 Metering means 10 Metering rice pumping means 11 First pipe 12 Pressurized air flow generator 15 Stirring means 23 Second pipe 24 Rice cooker

 ──────────────────────────────────────────────────続 き Continued on front page F-term (reference) 4B054 AA01 AA16 AA23 AB01 AB15 AC02 CC02 CC04 CD06 CD10 CE05 CE13 CG10 4B055 AA02 AA50 BA26 BA35 CA01 CA75 CA81 CB09 CB13 CB27 CC28 CC42 CD63 EA01 EA02 EA08 GA04 GB20 AGC4A04

Claims (9)

[Claims] Claims: 1. A rice washing method for washing rice in a rice washing tank after washing the measured rice in a rice washing tank, wherein when the measured rice is pressure-fed to the rice washing tank by a pressurized air stream, the rice discharge port of the rice washing tank is closed. In a closed state, the pressure in the rice washing tank due to the pressurized air flow is pumped while partially relieving the pressure.After that, the metered rice is washed in the rice washing tank in a state in which the pressurized air flow is stopped, and then the rice was washed. A method for supplying rice for washing, characterized in that rice is discharged from a rice discharge port of the rice washing tank by pressurization in the rice washing tank by a pressurized air flow, and the discharged rice is fed to a rice cooker by a pressurized air flow. 2. When the measured rice is washed in the rice washing tank and the rice washed in the colander is discharged from the rice discharge port, the cooked rice water is supplied to the rice washing tank, and the cooked water and the rice washed are washed. 2. The rice washing supply method according to claim 1, wherein the rice is supplied to the rice cooker by a pressurized air flow. 3. The rice washing according to claim 1, wherein the rice washing in the rice washing tank is agitated when the measured rice is washed in the rice washing tank and the rice washed in the colander is discharged from the rice discharging port. Supply method. 4. When the measured rice is washed in the rice washing tank and the washed rice in the colander is discharged from the rice discharge port, a part of the rice washing water in the colander raised state or the water added or subtracted is supplied. And while stirring the rice in the rice washing tank, most of the total amount of rice is discharged, and then the entire amount of rice water or the remaining rice water is supplied, and the remaining rice and rice water are cooked in a pressurized air flow. The method for supplying rice washing according to any one of claims 1 to 3, wherein the rice is fed under pressure to a kettle. 5. The method of supplying rice according to claim 1, wherein the pressure-feeding is performed while adjusting the air volume (wind pressure) of the pressurized air flow. 6. A rice-washing apparatus for washing measured rice in a rice-washing tank and then feeding the rice to a rice cooker, wherein the rice-washing machine has a rice discharging port that can be opened and closed at the bottom and has stirring means inside. A tank, a metering rice pumping means comprising a first conduit for pumping metered rice to the rice washing tank by a pressurized air flow, and a pressurized air flow generator; and a tank provided in the rice washing tank. Pressure relief means for partially relieving the pressure of the above, a second conduit for pressure-feeding a pressurized air flow provided between the rice discharge port of the rice washing tank and the rice cooker toward the rice cooker, Rice washing means for supplying water to the rice washing tank, wherein the first conduit of the metering rice pumping means is connected to the rice washing tank so as to pressurize the inside of the rice washing tank from above by a pressurized air flow. Feeding device. 7. The rice washing supply device according to claim 6, further comprising a rice storage tank having a measuring means at a lower portion, wherein an outlet of the measuring means is connected to the first conduit. 8. The rice washing supply device according to claim 6, wherein a damper capable of adjusting a flow rate (wind pressure) of the pressurized air flow is provided in the first conduit. 9. A rice washing tank having a rice discharging port in a lower part and a rice storing tank having a measuring means in a lower part are housed side by side in a housing, and inside the housing and at a lower part of the rice storing tank. The rice washing supply device according to any one of claims 6 to 8, wherein the pressurized air flow generator is housed, and a rice cooker is disposed in front of the housing.