JPH0374134B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention mainly relates to a device for washing grains such as rice or beans, which have a specific gravity larger than water, with water. Regarding equipment.

"Prior Art" Conventionally, as shown in Japanese Patent Publication No. 56-9381, there has been a technology that automatically performs everything from putting rice into a washing case to washing the rice with a stream of water and adjusting the amount of water necessary for cooking the rice.

"Problems to be Solved by the Invention" The above-mentioned conventional technology opens and closes a solenoid valve for water supply based on a water level sensor that detects the water level inside the washing case to adjust the amount of water after washing the rice, which has the greatest effect on the finish of rice cooking. This is done by controlling the water supply, but since the water level is detected when the water surface is rippled by the water supply, it is difficult to obtain the appropriate amount of water necessary for cooking rice.
There was a problem in that when the amount of water was small, the rice was hard and unevenly cooked, and when the amount of water was large, the rice was soft and sticky.

In addition, since the minimum detection water level for water level detection is above the hopper at the bottom of the washing case, water cannot be detected when the amount of washed rice is small, causing the problem that it cannot be applied to cooking small amounts of rice.

``Means for Solving the Problems'' However, in the present invention, a water supply pipe is installed inside the cleaning case, and the water supply pipe is installed above the bottom surface of the cleaning case, which is inclined at an angle of repose of the particles or higher, and which is higher than the top surface of the granule sinking layer. The granules are provided with a water supply pipe outlet at a position, a granule delivery port at the inclined lower end of the bottom of the cleaning case, and a means for taking out the water inside the cleaning case at a position higher than the top surface of the granule settling layer. The cleaning device is equipped with a water volume adjustment tube that drains the water inside the cleaning case and leaves the required amount of water inside the cleaning case, and the adjustment tube is connected to the vicinity of the granule outlet at the inclined part of the bottom of the cleaning case.

``Function'' Therefore, according to the present invention, the amount of water after washing is adjusted under the condition that the water supply is stopped and the water level is stabilized by adjusting the drainage with the small volume adjustment pipe, so that the water can be accurately drained to the set water level without excess or deficiency, and the rice can be cooked. The amount of water required for washing can be obtained appropriately, and the granular rice can be cooked well.Also, since the water is drained from the bottom of the washing case through a water volume adjustment pipe, even if the amount of rice to be washed is small, it will be suitable for the amount of rice. The water level (water volume) can be set and adjusted to expand the quantitative range of application.

"Embodiments" Examples of the present invention will be described in detail below based on the drawings. Figure 1 is an explanatory diagram of the main parts, Figure 2 is an overall diagram, and Figure 3 is an illustration of the main parts.
FIG. 4 is a partial explanatory view, and includes a rice cooking section 2 into which the rice cooker 1 is placed, a water washing section 4 in which a washing case 3 is installed, a measuring section 6 in which a measuring hopper 5 is installed, and a rice polishing cylinder 7. It is equipped with a rice milling section 8 and a storage section 10 in which a brown rice tank 9 is provided, and each section 2, 4,
6, 8, and 10 are stacked in a multi-layered manner on a base 11, and a shell frying conveyor 13 having a charging hopper 12 at the lower end side is erected.

Then, feed the brown rice from the input hopper 12 to the conveyor 1.
3, the rice is carried into the brown rice tank 9, polished by the brown rice cylinder 7 of the tank 9, and sent to the weighing hopper 5. The rice weighed by the hopper 5 is dropped into the washing case 3 and washed with water. Washed rice is delivered to a rice cooker 1 for cooking, and the rice cooker is configured to automatically perform a series of continuous operations from taking out brown rice from a brown rice tank 9 to cooking rice in the rice cooker 1.

Further, a funnel-shaped bottom part 3b is integrally connected to the lower end side of the side wall part 3a of the cylindrical upright cleaning case 3, and the bottom part 3b of the case 3 is formed at an inclination angle A larger than the angle of repose of rice grains. tilt, solenoid 14
an outlet port 16 provided with an electromagnetic discharge valve 15 having a
are connected to the inclined lower end side of the bottom part 3b, and
An openable and closable lid 17 is fitted and fixed to the upper end opening of the cleaning case 3 which is connected and supported by the base 11.

In addition, a water supply pipe 19 is installed vertically at approximately the center of the cleaning case 3 via a support frame 18, and a water supply pipe 22 is attached to and detached from the upper end of the water supply pipe 19 via an electromagnetic water supply valve 21 having a solenoid 20 using a joint 23. At the same time, the water supply valve 21 and the water pipe 22 are integrally fixed to the upper surface of the lid 17,
A water pipe 24 through which tap water is conducted from a faucet or the like is connected to the water pipe 22 by a removable pipe break 25.

Then, grains such as rice are put into the washing case 3 through the input port 26 provided in the lid 17, and water is sent into the case 3 by opening the water supply valve 21, so that the washed rice layer 7 sinks to the bottom of the washing case. A wrapper-shaped outlet pipe 28 at the lower end of the water supply pipe 19 is opened at a position higher than the upper surface.

Furthermore, as shown in FIG. 1, the outlet pipe 28 is fixed to the lower end of the water supply pipe 19 via an adjustment screw 28a so as to be able to rise and fall freely, and the opening height of the lower end of the water supply pipe 19 is adjusted by vertically moving the outlet pipe 28. The water supplied to the water supply pipe 19 is configured to be dissipated into the open from the trumpet-shaped downward opening of the outlet pipe 28.

Further, a siphon pipe 29 is provided, the lower end of which extends to a position lower than the bottom of the cleaning case 3, and the upper end of the siphon pipe 29 extended inside the cleaning case 3 is connected to the middle of the water supply pipe 19, and the siphon pipe 29 and The water inside the cleaning case 3 is caused to flow out from the outlet pipe 28 through the lower end side of the water supply pipe 19 by siphon action, and a bench lily pipe 30 is provided in the water supply pipe 19 on the upper end side from the connection part between the water supply pipe 19 and the siphon pipe 29 to supply water. An air suction pipe 31 is provided as an air supply means for mixing air into the water flowing out from the pipe 19, and one end of the suction pipe 31 is opened toward the water outflow direction at approximately the center of the small diameter portion 30a of the bench lily pipe 30. On the other hand, the other end of the suction pipe 31 is connected to the middle of the siphon pipe 29, and air is taken in from the siphon pipe 29 through the suction pipe 31 due to the negative pressure of water flowing out of the water supply pipe 19, and air flows out from the water supply pipe 19. It is designed to generate a large number of bubbles in the water.

Further, a plurality of vertically elongated slits 32 are provided in the side wall portion 3a of the cleaning case 3, and the slits 32 are formed in a width smaller than the outer shape of the rice, and a drain pipe 33 is integrally connected to the outside of the case 3. When the amount of washing water increases inside and the water level rises to the slit 32, floating impurities such as rice bran and blade shells are sent out from the slit 32 to a drain pipe 33 by the outflow of water.

Further, a water volume adjustment pipe 34 is provided as a means for adjusting the remaining amount of water injected inside the cleaning case 3, and one end side of the said adjustment pipe 34 is connected to the bottom part 3b of the cleaning case 3 at a position lower than the water level of the minimum amount of remaining water injected. , also the bottom part 3b
The opening area of the adjustment pipe 34 that communicates with the rice is formed to be smaller than the outer shape of the rice, and the drainage side end of the adjustment pipe 34 is connected and supported to a water volume gauge frame 35 fixed to the base 11 via a water volume adjustment lever 36. The height position of the drain side end opening of the regulating pipe 34 forming a siphon is adjusted by operating the lever 36, and water flows into the cleaning case 3 from the drain side opening 34a of the regulating pipe 34 to the drain pipe 37 below. When the water level inside the case 3 matches the height of the drain side opening 34a of the regulating pipe 34, drainage from the regulating pipe 34 is stopped and the amount of water required for cooking rice is transferred to the case 3. While remaining inside, when the delivery valve 15 is opened, the rice sinking to the bottom part 3b is drained from the delivery port 16 to the rice cooker 1 below by the outflow action of the water inside the case 3. ing.

Further, a water supply sensor 38 that detects the highest water level inside the cleaning case 3 and a drainage sensor 39 that detects when the water level drops to the outlet pipe 28 of the water supply pipe 19 are provided. The drain pipe 42 is connected to the bottom 3b of the cleaning case 3 via an electromagnetic cleaning valve 41 having a solenoid 40, and the sensors 38 and 39 control the valves 15 and 3b.
21, 41 are automatically controlled to open and close, and when the washed rice is taken out from the outlet 16 and washing of the rice is completed, the water put into the washing case 3 from the water supply pipe 19 is discharged from the drain pipe 42, and the water is removed from the case. 3 The interior is constructed to be rough.

This embodiment is configured as described above, and the rice cooker 1
By inputting the rice cooking completion time, the timer is automatically counted backwards and starts operating the timer. When the predetermined time is reached, the rice is sent from the brown rice tank 9 to the weighing hopper 5 via the rice polishing cylinder 7. A set amount of rice is put into the washing case 3 from the hopper 15.

As shown in FIG. 5, when the water supply valve 21 opens and enters water into the case 3, air is mixed into the water in the middle of the water supply pipe 19, and the water and air bubbles adhere to the surface of the rice. At the same time, sugar and blade shells, which have a specific gravity lower than that of water, flow out from the slit 32, while the water level rises and the water supply sensor 38 is activated.
The water supply valve 21 closes, and the siphon pipe 29
The water inside the case 3 flows out from the outlet pipe 28 of the water supply pipe 19 by siphon action.At this time, the rice has settled to the bottom 3b of the case 3 below the outlet pipe 28, Dirty water is drained from the upper side of the rice.

When the water level inside the case 3 falls and the drainage sensor 39 is activated, the water supply valve 21 is opened again.
The opening/closing control of the water supply valve 21 is repeated a plurality of times using the 9 output, and the washing of the rice is completed.

Also, during a certain period of time t from the final output of the discharge sensor 39, the water level inside the case 3 is adjusted, and the water level in the case 3 is raised to approximately the same height as the drain side opening 34a of the water volume adjustment pipe 34, which has been set in advance. At the same time, the discharge valve 15 is opened as the water volume adjustment time t elapses, and the washed rice in the case bottom 3b is discharged from the outlet 16 using the water necessary for cooking rice remaining inside the case 3, and the water is The washed rice is dropped into the rice cooker 1, and after a predetermined time, the rice cooker 1 is operated with a timer to cook the rice.

Further, when the discharge valve 15 is closed after washing rice is discharged from the outlet 16, the water supply valve 21
The water level inside the case 3 rises, which causes the water supply sensor 38 to operate, the water supply valve 21 to close, and the cleaning valve 41 to open and drain the water in the case 3 from the sewer pipe 42. The drainage sensor 39 is activated by the drop in the water level inside 3.
The cleaning valve 41 is closed and the water supply valve 21 is opened again, and the inside of the case 3 is washed with water several times to perform post-cleaning.

Also, an adjustment screw 2 which is a height adjustment means of the outlet pipe 8
8a and a water volume adjustment lever 36, which is a height adjustment means of the drainage side opening 34a of the water volume adjustment pipe 34, are interlocked and connected, and the height adjustment operation of the outlet pipe 28 and the opening 34 are interlocked.
By keeping the relative height positional relationship between the lower opening of the outlet pipe 28 and the opening 34a substantially constant by linking the height adjustment operation of the opening 34a with the height adjustment operation of the opening 34a of the outlet pipe 28, it is possible to prevent problems such as a long time for draining water from the opening 34a and the problem that the outlet pipe It is possible to prevent problems such as the washed rice being sucked out from the 28.

In addition, in the above embodiment, the rice cooker 1 and the cleaning case 3
Although the rice cooker 1 and the cleaning case 3 are provided separately, the rice cooker 1 and the cleaning case 3 can easily be integrated into one by incorporating the cleaning case 3 into the lid of the rice cooker 1 or the like.

"Effects of the Invention" As is clear from the above embodiments, the present invention has the water supply pipe 19 extended inside the cleaning case 3, and allows the granules to be collected above the bottom surface of the cleaning case 3, which is inclined at an angle greater than the angle of repose of the granules. Water supply pipe 19 located higher than the top of the subsidence layer
The granules are provided with an outlet opening, a granule delivery port 16 at the inclined lower end of the bottom of the cleaning case 3, and a means 29 for taking out the water inside the cleaning case 3 at a position higher than the upper surface of the granule settling layer. The cleaning device includes a water volume adjustment pipe 34 that drains the water inside the cleaning case 3 and leaves the required amount of water inside the cleaning case 3,
The adjustment pipe 34 is connected to the vicinity of the granule delivery port 16 at the inclined part of the bottom of the cleaning case 3, and the water amount can be adjusted after cleaning under conditions where the water supply is stopped and the water level is stabilized by the drainage adjustment by the small amount adjustment pipe 34. Because of this, water can be drained accurately to the set water level without too much or too little water, and the amount of water required for cooking rice can be obtained properly.The granular rice can be cooked well, and the water amount can be adjusted from the bottom of the washing case 3. Since the water is drained through the pipe 34, even when the amount of rice to be washed is small, the water level (water amount) can be set and adjusted to match the amount of rice, which has remarkable effects such as expanding the range of quantitative application. be.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of main parts showing one embodiment of the present invention,
FIG. 2 is an overall diagram, FIGS. 3 and 4 are partial explanatory diagrams, and FIG. 5 is an output diagram showing a timing chart. 3...Cleaning case, 16...Outlet port, 19...
Water supply pipe, 29...Siphon pipe, 34...Water volume adjustment pipe.

Claims (1)

[Claims] 1. Extend the water supply pipe 19 inside the cleaning case 3,
The outlet of the water supply pipe 19 is opened at a position higher than the top surface of the granule settling layer above the bottom surface of the cleaning case 3 which is inclined at an angle of repose greater than the angle of repose of the granules, and a granule delivery port is provided at the lower end of the slope of the bottom of the cleaning case 3. 16, and
In a granule cleaning device equipped with a means 29 for taking out water inside the cleaning case 3 at a position higher than the upper surface of the granule settling layer, the amount of water is adjusted by drawing out the water inside the cleaning case 3 and leaving the necessary amount of water inside the cleaning case 3. A granule cleaning device comprising a pipe 34, the regulating tube 34 being connected to the vicinity of the granule delivery port 16 at the inclined part of the bottom of the cleaning case 3.