JPH08155314A - Rice washing device - Google Patents

Abstract

PURPOSE: To execute rice washing with jet water flow and to surely execute washing in a rice washing tank over the entire surface by making it possible to charge rice by a negative pressure (suction) into the rice washing tank. CONSTITUTION: This rice washing device has the rice washing tank 2 having a rice discharge port 12 in its bottom and a rice washing means 26 for washing the rice by circulating the water flow vertically within the rice washing tank 2 in the state of closing the rice discharge port 12 and has a rice discharge valve 16 for freely opening and closing the rice discharge port 12. The rice washing device has also a water regulating and feeding means 50 and a blower 9 for charging the rice by generating a negative pressure in the rice washing tank 2 in the upper part of the rice washing tank 2. The device has a cap 7 for freely opening and closing the opening in the upper part of the rice washing tank 2. This cap 7 has a part following up the opening/closing operation and is provided with the water regulating and feeding means 50 and a rice feeding means 10. The cap 7 is provided with the blower 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice washing apparatus and is used for repeatedly washing measured rice in response to a large amount of cooked rice, such as restaurants, sushi restaurants, and hotels.

[0002]

2. Description of the Related Art A rice washing tank having a rice discharging port at the bottom and a rice washing means for washing rice by vertically circulating a water flow in the rice washing tank with the rice discharging port closed are provided. An automatic rice washing device (hydraulic rice washing device) equipped with a rice discharging valve that can be opened and closed is proposed in Japanese Patent Laid-Open No. 277034/1992, and rice used as a raw material for rice crackers, rice crackers, rice cakes, etc.
Automatically wash rice such as sushi and rice for bento to help the labor saving of the kitchen.

Further, in this automatic rice washing, compared with the case of washing rice by rotating a stirring blade (see, for example, Japanese Patent Application Laid-Open No. 5-220409), it is advantageous in that the generation of broken rice can be reduced because the rice is washed by a water stream. There is.

[0004]

In the above-mentioned conventional hydraulic rice washing apparatus, the upper part of the rice washing tank is closed, and it is difficult to wash the inside of the rice washing tank, and the bran remains attached to the inside of the tank. However, the quality of cooked food was deteriorated and there was a problem in hygiene. Also, if you try to open a window in the body of the rice washing tank and try to wash the inside of this tank, the sealing of the window during rice washing becomes a problem and the window cannot be made large, so the washing is uniform throughout the tank. There was a problem that I could not do it.

In view of the above, according to the present invention, the upper portion of the rice washing tank is airtightly sealed by a lid that can be opened and closed, so that the rice can be supplied by a negative pressure and the inside of the tank can be uniformly and accurately washed throughout. It is an object to provide a rice washing device.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a rice washing tank 2 having a rice discharging opening 12 at the bottom, and a water stream circulated vertically in the rice washing tank 2 with the rice discharging opening 12 closed. A rice washing means 26 for washing rice is provided, and a rice discharge valve 16 for opening and closing the rice discharge port 12 is provided, and a water supply / replenishment water supply means 50 at the upper part of the rice washing tank 2 and a negative pressure in the rice washing tank 2 are provided. In order to achieve the above-mentioned object, the following technical measures are taken in a rice washing apparatus equipped with a blower 9 for feeding rice.

That is, the present invention is provided with a lid 7 that can open and close the upper opening of the rice washing tank 2, and the lid 7 has a portion that follows this opening and closing operation and the rice feed water supply means 50 and rice feeding. Means 10 is provided, and the blower 9 is attached to the lid 7.
It is characterized by having. Further, it is desirable that the rice washing means 26 ejects a jet water stream from the bottom of the rice washing tank 2.

[0008]

When the blower 9 is started while the inside of the rice washing tank 2 is sealed, the rice is fed from the rice supplying means 10 into the inside of the rice washing tank 2 by the negative pressure. By jetting a jet water stream from the bottom of the rice washing tank 2, a vertical water stream is generated, and rice washing is performed while reducing broken rice.

Cleaning (cleaning) such as removal of bran in the rice washing tank 2
When performing, the lid 7 can be opened entirely, and the opening / closing operation of the lid 7 is followed by the bellows 10A of the rice supplying means 10 and the bellows 50A of the water supplying means 50, and the blower 9
At the same time, it is possible to open the entire surface with the lid 7 attached.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. Referring to FIG. 4, which shows the overall configuration, a rice washing apparatus 1 according to the present invention comprises a cylindrical rice washing tank 2 having a funnel-shaped lower portion, a rice cooker pot 3 below this, and a lower weighing portion below this. A rice storage box 5 having a section 4 is arranged in the vertical direction, and the weighing section 4 is a rotary type, and the weighing rice can be temporarily stored in the receiving box 6.

The upper portion of the rice washing tank 2 is closed by a lid 7 having an airtight sealing material on the lower surface, and the lid 7 is provided with a suction blower 9 via a bracket 8. When the blower 9 is started, The rice washing tank 2 has a negative pressure and can be fed with metered rice.
It is connected with. The rice supply hose 10 can be installed in a vertical column in a machine frame that constitutes the rice washing device 1.

Referring to FIG. 1, at the bottom of the rice washing tank 2,
A circular rice drainage port 12 and a drainage port 13 by a pipe are provided through a cylindrical body 11, and a filter cylinder 14 having a large number of holes is detachably fixed inside the body 11. Has been. On the lower surface of the rice discharging port 12, there is provided a rice discharging valve 16 which slides and turns around a vertical axis 15 shown in FIG. 3 on a horizontal plane. The rice discharging valve 16 is shown in FIG.
(B) As shown in (C) and FIG. 6, it has a substantially fan-shaped flat plate shape in plan view, and has a nozzle part 17 and a rice drop port 18 on the circumference centered on the vertical axis 15. ing.

On one side of the body portion 11, a motor mount 19 shown in FIG.
As shown in FIG. 9, an electric drive motor 21 is mounted via a stud bolt 20 and the like, and the motor shaft is connected to the vertical axis 15. A blow-up tube 22 is vertically provided on the vertical center of the rice washing tank 2 via a radial arm 23, and a lower end of the blow-up tube 22 is slightly floated above the rice discharge port 12 and has a gap. Its upper end extends to the vicinity of the overflow port 24.

With the rice discharging port 12 closed, the nozzle portion 17 is vertically opposed to the inside of the rice discharging port 12 below the blow-up tube 22, and the washing water supply connected to the nozzle portion 17 is supplied to the nozzle portion 17. When the washing water from the means 25 is ejected through the nozzle portion 17 as indicated by the arrow a in FIG. 1, a downward flow of water flowing through the blow-up tube 22 is generated as indicated by the arrows b and c. The weighed rice X is circulated and washed, and the blowing cylinder 22 and the nozzle portion 17 constitute the rice washing means 26.

The nozzle part 17 is provided with an introduction part 27 for introducing air by the water ejected from the nozzle part 17, and a thin tube 28 is connected to the introduction part 27, and the upper end of the tube 28 is the highest of the rice washing tank 2. It is located slightly above the water level, and by circulating air together with water in the up and down direction, it is possible to wash rice by gas-liquid mixing (jet water flow having bubbles).

A drainage box 29 is connected to the drainage port 13, and a drainage valve 31 biased in a valve closing direction by a biasing means 30 represented by a coil spring is slidable by a holder 32. The drain box 29 and the overflow port 24 are connected to each other by an overflow pipe 34 having a float valve means 33 in the middle, and a drain hose 35 to the outside of the machine.

The float valve means 33 is a valve seat 36 of a valve box 36.
It is equipped with a float valve 37 such as a pin ball for turning on / off A. When the blower 9 is activated to make the inside of the rice washing tank 2 a negative pressure, the float valve 37 closes the valve seat 36A, and when the negative pressure is released, the float valve 37. Is lowered by its own weight to open the valve seat 36A. The rice discharge valve 16 and the drain valve 31 are shown in FIG.
As shown in (B) and (C), the nozzle portion 17 and the rice drop port 1
8 and 8 are respectively positioned at the rice discharging port 12 (Fig. 5).
(See (A) and (C)), when the drain valve 31 is closed by the urging means 30, while the nozzle portion 17 and the rice drop opening 18 are located away from the rice discharge opening 12 (FIG. 5).
(See (B)), the interlocking means 38 is provided so as to open the drain valve 31 against the biasing means 30.

This interlocking means 38 is shown in FIGS.
As shown in (C), the arm 40, which is swingably supported by the vertical fulcrum shaft 39 on the drainage box 29, has one end engaged with the hook 31A of the drained rice 31, and the rice drainage valve 16. It consists of a cam 16A and a rod 41 that pivotally connects the other end of the arm 40. That is, when the drive motor 21 is started in the forward and reverse directions, the rice discharge valve 16 is moved to the position shown in FIGS.
5C is rotated forward and backward in the direction of arrow d to switch to the rice washing position of FIG. 5A, the drainage position of FIG. 5B, and the rice discharge position of FIG. 5C. At this time, the drain valve 31 is opened, and when the rice is washed and discharged, the drain valve 31 is closed.
With this, the three-position detection switch 43 is turned on / off to control the drive motor 21 so as to freely rotate forward / backward and stop.

The rice discharge valve 1 which rotates about the vertical axis 15
6 has an arc guide groove 44 as shown in FIGS. 6 and 7 in order to make the rotation thereof smooth, and the fixed support plate 4 is provided in this groove 44.
6, a stud bolt 45 provided upright is inserted, and a fixed support plate 46 is provided with a rollable ball 47, through which the rice discharge valve 16 is rotatably supported. .

The lid 7 of the rice washing tank 2 can be opened and closed in the vertical direction by a fulcrum means 48 shown by a hinge as shown in FIGS. 8 and 9, and is provided with a locking means 49 which can be engaged and disengaged relative to the fulcrum means 48. A water supply means 50 and a water supply nozzle means 51 are provided in the central portion of the lid 7. The water supply nozzle means 51 is provided in the center of the lower surface of the lid 7 as shown in FIG. 1, and is attached to the nozzle mounting base 53 having a plurality of nozzles 52 whose injection angles can be adjusted, and the outer periphery of this base 53. A hood 54 surrounding the top of the blow-up tube 22;
The water supply means 50 is a nozzle mount 5 having a branch passage 53A.
It is connected to the central hole 53B of No. 3 by communication.

Therefore, when water is supplied from the water supply means 50 to the nozzles 52 through the branch passages 53A, the nozzles 52 inject water e, f into the middle part of the inner wall of the rice washing tank 12 and the lower part of the inner wall. The inside of the blow-up cylinder 22 can also be cleaned. The water for washing rice and the adjusted water are both connected to a water supply source or a water storage source having a pressurizing pump via a main pipe 55, and the supply pipe 25 and the water supply to the main pipe 55 via a flow rate sensor 56. The means 50 are respectively branched and provided with opening / closing valves 57 and 58 shown by electromagnetic automatic valves in the middle thereof.

The source tube 55 is preferably inserted in a hollow vertical frame of the machine frame, and since the rice discharge valve 16 rotates (slides), the supply means 25 has a bellows in the middle thereof. It has a tube 25A and can follow the rotation, and the lid 7
Has a bellows pipe 50A in the middle of the water supply means 50 on the side of the fulcrum means 48 and a bellows pipe 10A in the middle of the rice supply hose 10 to follow the opening / closing operation of the lid 7. Further, the suction port 9A of the suction blower 9 is formed at an eccentric position from the center of the lid 7 as shown in FIG.

The operation of the above construction will be explained.
The weighing rice stored in the receiving box 6 by the weighing unit 4 is supplied from the upper portion of the rice washing tank 2 through the hose 10 by the activation of the suction blower 9. At this time, the rice discharging port 12 is closed by the rice discharging valve 16, and the float valve 37 closes the valve seat 36A by the negative pressure, so that the rice washing tank 12 is surely brought to the negative pressure and a predetermined amount of the measured rice X is discharged. It is reliably supplied to the rice washing tank 12.

Thus, according to the rice supply by air,
It reduces the occurrence of broken rice during rice feeding and makes it less likely that dust will be mixed in. Next, the process moves to the rice washing process, which is performed by rotating (sliding) the rice discharging valve 16 on a horizontal plane so that the nozzle portion 17 of the rice discharging valve 16 is located below the blowing cylinder 22 (see FIG. 5 (A)
), The rice drop port 18 is removed from the rice discharge port 12, and the drain valve 31 is closed.

When the on-off valve 57 is automatically opened in this state, the pressurized water shown by the arrow a in FIG. 1 is jetted to the nozzle portion 17 through the water supply means 25, and the air is introduced from the air introduction portion 27 along with this jet. Is taken in and the gas-liquid mixed flow (jet water) is introduced into the blow-up cylinder 22, a circulating water flow in the vertical direction is generated as indicated by arrows b and c, and the measuring rice X has its bran flow due to the water flow and the bubble flow. Minutes are washed.

Since the rice washing at this time is a water flow and a bubbly flow, the generation of crushed rice is small, and the rice bran becomes bubbles and flows down through the overflow port 24 to the drain box 29 through the float valve 37 and the drain hose 35. It is discharged to the outside of the aircraft via. It is desirable that the amount of water at this time be limited by the overflow valve F. When the predetermined rice washing process is completed, the water supply from the water supply means 25 is stopped and the rice discharge valve 16 is operated by the motor 2.
5 is rotated by the activation of No. 1 and the drain valve 31 is opened in accordance with this rotation, and water is once supplied from the water supply means 50 to the rice washing tank 12 and the waste water is discharged from the drain port 13. Is supplied all at once, and then the water supply from the water supply means 50 is temporarily stopped, and the process proceeds to the colander raising process.

When the predetermined colanding process is completed, the rice discharging valve 16 is rotated to attach the rice drop opening 18 to the rice discharging opening 12 as shown in FIG.
When they are opposed to each other, the drain valve 31 is closed, but the weighed rice in the rice washing tank 12 is put into the pot 3. At this time, by spraying the water to be adjusted through the nozzle means 51 as indicated by arrows e and f, the adhered rice such as the inner wall of the rice washing tank 12 and the blow-up pipe 22 is flowed down by the water flow. , Blow-up pipe 22
Since the arm 23 that supports the rice is a plate material, the resistance is almost the same and the entire amount is discharged together with water from the rice discharging port 12.

Although the inner wall of the rice washing tank 12 can be washed by supplying water from the nozzle means 51 in a state where the metered rice is not charged, the lid 7 is opened to the full and the inner wall of the rice washing tank 12 as well as the blow-up cylinder 22 is opened. The inside and outside of the rice can be cleaned quickly and surely by hand, and this can contribute to more reliable cleaning compared to the case where the washing window is formed in the body of the rice washing tank 2.

[0029]

As described in detail above, according to the present invention, the generation of broken rice can be eliminated by soft washing of rice with a circulating water flow, and the washing of the washing rice tank can be performed by opening the entire lid.
The removal of bran is reliable and does not spoil the taste, which is also advantageous in hygiene. Also, even if the water supply means and the rice supply means are connected to the lid, there is no problem because it follows the opening / closing operation of the lid, and it can be compactly packed with the blower, which is a great profit for commercial use.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line YY of FIG.

FIG. 3 is a perspective view of a main part.

FIG. 4 is an overall configuration diagram.

5A and 5B are operation plan views of a rice discharge valve and a drain valve, where FIG. 5A is for washing rice, FIG. 5B is for draining, and FIG.

FIG. 6 is a plan view of a rice discharge valve.

FIG. 7 is a sectional view taken along line TT in FIG.

FIG. 8 is a plan view of a lid portion.

FIG. 9 is an elevational view showing a lid opening operation.

[Explanation of symbols]

 2 Rice washing tank 7 Lid 9 Blower 10 Rice supplying means 12 Rice discharging port 16 Rice discharging valve 17 Nozzle part 18 Rice drop port 22 Blowing pipe 25 Rice washing water supplying means 26 Rice washing means 50 Water supply / feeding means

Claims (2)

[Claims] 1. A rice washing tank (2) having a rice discharging opening (12) at the bottom, and a water stream is circulated vertically in the rice washing tank (2) with the rice discharging opening (12) closed. A rice washing means (26) for washing rice, a rice discharging valve (16) for opening and closing the rice discharging opening (12), and a rice washing tank (2)
In the rice washing apparatus, which comprises a water supply / reduction water supply means (50) and a blower (9) for introducing rice under a negative pressure in the rice washing tank (2), the upper opening of the rice washing tank (2) is Lid that can be opened and closed (7)
The lid (7) has a portion that follows this opening / closing operation and is provided with the water supply / reduction means (50) and the rice feeding means (10), and the lid (7) is provided with the blower (9). ) Is equipped with a rice washing device. 2. The rice washing means (26) is a rice washing tank (2).
The rice washing apparatus according to claim 1, wherein a jet water stream is ejected from the bottom of the rice.