JPS62137020A - Automatic rice cooking apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention was proposed with the aim of completely automating the rice cooking work, which has traditionally been done manually, and includes the following: storing raw materials, measuring rice, washing rice, adjusting the amount of water, Soaking, cooking,
The present invention relates to a new labor-saving device that can accurately and automatically proceed with a series of work processes from irregularities to completion.

In the past, new improvements have been made to rice storage units, rice washers, and automatic rice cookers that are equipped with means for quantifying raw materials, but all of them require manual intervention before and after the operation, resulting in a lack of continuity. In addition, it occupies a large space and requires highly skilled workers, resulting in many problems in terms of work efficiency.

The device of the present invention is placed at the top of a rice storage tank with a metering function for dividing raw materials according to the required amount of cooking. A rice washing tank is provided with an outlet for raw materials and cooking water that can be opened and closed with a valve, and an upper lid is installed below the rice washing tank, which is connected to the outlet through a cylindrical body that is slidable in the vertical direction. Further below, a rice cooker with an inner pot installed coaxially with the top lid and directly below the top cover is arranged so as to be movable in the horizontal direction, and a dial mechanism and food for selecting the required amount of rice to be cooked, cooking water, etc. It is automatically operated by a program controller that sequentially starts and stops each mechanism according to a predetermined operation process, so all you have to do is set the inner pot and press the start button, and the series of complicated steps from measuring the ingredients to completing the cooking process can be completed. Work can be completely labor-saving. In addition, as a result of ensuring accurate amount of raw materials and amount of water, as well as appropriate soaking and mixing times, human-made cooking errors are completely eliminated and the best rice is always obtained, streamlining the rice cooking process. This is a revolutionary invention with high industrial value.

To explain the device of the present invention with reference to drawings showing an embodiment thereof, in FIG.
A constant t $1 +21 is connected to the bottom of the hopper-shaped storage tank in which polished rice is stored. The constant m machine (2) shown in this embodiment is a drum-type constant jiffl that is rotated in one direction by an electric motor *+31, and the internal volume of the drum is kept constant, and a desired amount is quantitatively separated according to the rotational speed and dropped downward. , based on a pulse counting method controlled by the emission of fixed value pulses from a counter set in advance by a quantitative dial mechanism (20). Meanwhile said quantification #
(Below 21 is a funnel-shaped raw material chute (4
) is arranged and penetrates the top plate (6) of the rice washing tank (5) to form a raw material supply port (7).

The rice washing tank (5) is formed of a cylindrical body with an inverted cone shape at the bottom, and a hollow rotating shaft (9) with a plurality of stirring blades (8) each having a different radius of rotation is installed at the central position of the cylindrical body. The hollow shaft (9) is arranged at the bottom so as to be rotatable.
A shaft rod (12) is inserted coaxially with the top plate (6) and is movable in the vertical direction by a rotary cam mechanism (11) provided above the top plate (6). ]
3) A separation device comprising an inverted cone having a throat portion (14) that can be opened and closed with an outlet (25) for raw material and cooking water, and further above the throat portion (14) has a large number of pores. A ring-shaped drainage jacket (16) provided to tightly surround the plate (15) and the separation plate (16) and an overflow port (17) connected to the bottom of the top plate (6) are provided. .

A side pipe (18) is opened in communication with the outer peripheral surface of the drainage jacket (16), and the rising water level in the side pipe is electrically detected.
(19) is enclosed, and the rice cooking water level in the rice washing tank (5) can be detected and adjusted by a sensor (tank) that is movable up and down in conjunction with a metering dial mechanism (20). has been done.

Further, a plurality of water supply ports (21) are provided at the top of the rice washing tank (5) by penetrating the top plate (6). As shown in Fig. 2, on the outer circumferential surface of the drainage jacket (16), in addition to the side pipe (g), there is a drain pipe (23) for draining wash water out of the system via a drain valve C22) that can be opened and closed. Rice washing tank (5)
A water supply port (44) which communicates with the water via a solenoid valve (45) is provided in order to apply an upward flow to the water and discharge suspended pollutants out of the thread from the overflow port (17).

On the other hand, in the center of the bottom of the annularly formed drainage jacket (16), an outlet (25) for raw material and cooking water is opened, which has an annular backing (24) that is compressed and sealed by a conical valve (13), and an outlet (25) for KJL flow. A cylinder with an open bottom (26) is provided in close contact with the bottom surface of the jacket so as to surround the entire circumference of the outlet (25), and a cylinder with an open top and bottom (26) is slidably in close contact with the outer peripheral surface of the cylinder. The upper i (30) is connected to the center of the upper part and can be opened and closed in the vertical direction by means of a swing arm (29) having the fulcrum (28) as an axis.

The cylindrical bodies (26) and (27) shown in this embodiment are made to slide against each other using a small gap, but it is possible to attach an O-ring to one end of the cylindrical bodies. It can be an airtight structure.

The cylindrical body constructed as described above has the function of forming a flow path between the rice washing tank and the inner pot when raw materials are discharged, and also has the function of sealing the inner pot and maintaining pressure during rice cooking.

The rice cooker (32) into which the inner pot (31) is inserted and held is loaded and fixed on a drawer frame (33) so that it can move freely in the horizontal direction, and during operation it is placed directly under the upper fi (30) and sealed. At the same time, when rice cooking is completed, the MiTL top lid is opened upward via a swing arm (29), the rice cooker (32) is pulled out forward, and then the inner pot (3) is pulled out upward.

In the device of the present invention, the flow path constituted by the cylinders (26) and (27) is an extremely important element in realizing the present invention, and as shown in Fig. 3, the conical valve (13) When opened, the raw material and cooking water outflow curve 1 takes on a parabolic shape as shown by the dotted line (34). At this time, the conical valve (
13) remains as a space, and especially when flowing into the round inner pot (31), the manner of material accumulation is as shown by the dotted line (3).
It becomes a donut shape with a concave central part as shown in 5).

This method of lowering the center and raising the outer periphery reduces the load on the center, which has poor heat circulation, when cooking a large amount of raw materials in one portion, and promotes convection in the inner pot, making it difficult to cook rice in the center. This corresponds to an effective method that has been passed down since ancient times to prevent the creation of dango.

From the above viewpoint, it becomes clear that it is an extremely important element for realizing the present invention to make the raw material flowing into the inner pot (31) have a substantially flat donut shape without any manual intervention. In the present invention, in order to solve the above-mentioned problem, as shown in FIG. 3, an extension line (3f
5) and the bottom surface of the inner pot (31). It is characterized by the fact that the position in mutual relation with the

On the other hand, as shown in FIG.
As a result of 7), the outflow curve becomes almost linear as shown by the dotted line (38), and the raw material flowing into the inner pot forms a mountain as shown by the dotted line (39) and protrudes from the water surface. Cooking rice in such a piled-up state creates a large amount of dumplings in the center, making it almost impossible to cook rice in reality. Therefore, it is clear that the original purpose of the present invention cannot be achieved by the method shown in FIG. 4, and it is obvious that the method shown in FIG. 3 is an essential requirement for completing the present invention. Become.

The operation mode of the apparatus of the present invention constructed as described above will be explained with reference to the drawings showing the embodiments thereof. In FIG. By pushing in (33), the upper ffi (30) is stopped moving coaxially with the center of the upper ffi (30), and the upper lid is moved downward using an upper lid opening/closing lever (not shown) to seal the inner pot. The upper lid has a structure in which it is mechanically held under pressure by an arm (29) operated through a link motion by an upper lid opening/closing lever. At the knee, the touch sensor (40) detects and confirms the presence or absence of the inner pot (31) and that it is set in a predetermined position, and the touch sensor (41) confirms that the upper lid (30) is sealed.

Next, by setting the metering dial (9) to the desired amount of cooked rice, a pulse counter (not shown) that regulates the rotation speed of the rotary metering device (2) is selected, and the side tube (18
Flow for water level detection in )) Move the sensor (20) that detects (19) to determine the water level in the rice washing tank (5) necessary for rice cooking.

By pressing the start button (not shown), the rotary metering machine (2) rotates, separates the raw material in the rice storage tank (1) in a quantitative manner, and dispenses a predetermined amount from the raw material input port (7) through the seat (4). The raw material is dropped into the washing rice tank. At the same time, after electric power (
10) is started and the impeller (8) rotates at 41 speed, and the solenoid valve (not shown) connected to the pressure water system opens and watering starts from the multiple watering ports (21) provided at the top, starting the rice washing process. enter. The waste water that has accumulated at the bottom of the rice washing tank (5) and has passed through the stirred raw material layer to become rice washing polluted water passes through the perforated plate (15) at the bottom and once stagnates in the jacket 06).
From the short pipe (23) through the drain box (42) to the drain outlet (43)
Drainage occurs outside the strands.

Next, the watering is stopped according to the rice washing program input into the program in advance, and the rice polishing process begins.

After the predetermined sharpening time has elapsed, watering is started again to drain the rice-washing polluted water.

After repeating the above two steps several times, the drain valve (22) shown in Figure 2 is closed and water starts to be supplied from the water supply port (44) which is open to the jacket (16) via the magnetic valve (45). be done. The water is supplied to the rice washing tank (5) by sealing the drain valve (22).
The water flows upward from inside the tank, filling the tank and overflowing from the overflow port (17), and is drained out of the system via the drain pipe (46) and the drain box (42). This overflow means is extremely effective in discharging to the outside of the system foam-like contaminants that do not pass through the raw material layer but accumulate above during rice washing.

After a predetermined overflow time has elapsed, the electromagnetic valve (45) closes and the drain valve (22) opens to drain all the cleaning water accumulated in the tank out of the system.

With this, the rice washing step is completed, and then the drain valve (Z2) is closed and the solenoid valve (not shown) is opened to start supplying water for the water adjustment step. As the water level in the rice washing tank (5) rises, the float (19) in the side pipe Qs) rises, and the sensor @) set in a predetermined position detects the float and closes the solenoid valve (not shown) to supply water. stop. Due to the sensor operation, the cam opening/closing mechanism (11) provided at the top of the shaft (12) rotates, causing the conical valve (13), which seals the outlet (25) at the bottom of the rice washing tank, to fall by a predetermined stroke to remove the raw material. It is caused to flow together with water into the inner pot (31) installed in the rice cooker in the manner shown in FIG.

When the inflow of raw materials is completed, the conical valve 1]+T returns to its original position by the rotation of the cam opening/closing mechanism and seals the discharge port (25).

Next, the soaking time of the raw materials is restricted by a timer excited by the output signal of the sensor @), and after a predetermined period of time, a gas burner (not shown) set in the rice cooker is ignited in response to the output signal of the kneading timer. Start the cooking process.

The combustion gas is supplied through a pipe that is opened and closed by a gas solenoid valve (not shown), and the solenoid valve is opened by the output signal of the timer and sealed by a thermostat that detects the bottom temperature of the inner & (31). It is configured so that it can be used.

Completion of the rice cooking process is detected by the thermostat;
As soon as the gas burner is extinguished, a separate timer is activated in response to the output signal from the thermostat to limit the unbalanced time. After the predetermined cooking time has elapsed, the rice cooking completion notification buzzer sounds and the indicator lamp lights up based on the output signal of the cooking timer.

This completes a series of operating steps in the apparatus of the present invention.

According to the device of the present invention, as mentioned above, it is possible to completely automatically process from measuring raw materials to completing rice cooking by just inputting a start pulse, and it does not require continuous cooking of large amounts of rice. It also has the feature of enabling continuous operation of 13 times, which is suitable for various situations. That is, in FIG. 1, the water level detection sensor (20)
and the output signal of a sensor (47) provided below the cam opening/closing mechanism (11) to detect the opening of the conical valve 03) are electrically stored.
1) Input the output signal of the sensor (48) provided above to detect the closed position of the conical valve (13) to the above-mentioned memory circuit to form an ON circuit and transmit a start pulse.2) Rotary measurement a It is possible to proceed with the process from quantitative determination of raw materials to completion of rice washing according to (2).

That is, while the lower rice cooker is in the rice cooking process, the rice washing process is progressing in the upper rice washing section, so the operating efficiency of the apparatus is maximized.

The time required from the start to the completion of rice washing in the device of the present invention is approximately 5 minutes, and the time required from ignition in the rice cooking section to the completion of rice washing is approximately 30 minutes. Because it takes about 25 minutes to soak the raw materials, the gas burner can be ignited immediately after setting a new inner pot and letting the raw materials and water flow into the inner pot, allowing for complete continuous operation. is the one who becomes the master.

As mentioned above, the device of the present invention has a top lid (4) which can be opened and closed in the vertical direction, a rice cooker'af (4) which can be moved in the horizontal direction,
32) and an inner pot (31) mounted on the rice cooker and sealed just below the same axis of the top lid, the overall height of the device can be kept low, and the inner pot (31) can be mounted easily. Combined with the labor-saving effects of a fully automatic rice cooking system, such as the ability to easily take out the rice, it has an extremely high economical effect, and is an invention of great industrial value.

[Brief explanation of drawings]

The drawings each show an embodiment of the present invention; FIG. 1 is a side view showing the arrangement of internal mechanisms, FIG. 2 is a front view of the device, and FIGS. 3 and 4 are explanatory diagrams of the discharge function, respectively.

Claims (3)

[Claims] (1) Consists of a cylindrical container with an inverted conical lower part,
A raw material supply port was provided at the top, and an outlet which could be opened and closed by a conical valve was provided at the bottom, and a rice washing tank equipped with water level adjustment means was provided at the top so as to tightly surround the entire circumference of the outlet. A lower open cylinder body and a top and bottom open cylinder body slidably in close contact with the outer circumferential surface of the cylinder body are connected upwardly, and an upper cover that can be opened and closed in a vertical direction is disposed below the upper cover, and an inner pot is mounted thereon. The rice cooker is configured such that a rice cooker that is horizontally movable is disposed directly under the upper lid, and the flow path formed by the cylinder is formed by an extension of the slope of the conical valve and the bottom surface of the inner pot. An automatic rice cooker characterized by being configured so as not to intersect with isosceles triangles. (2) A cylindrical container with a rice storage tank equipped with a means for quantitatively distributing raw materials at the top and an inverted conical bottom, with a raw material supply port at the top and a conical valve at the bottom that can be opened and closed. A lower open cylindrical body is provided with a rice washing tank provided with an outlet and a water level adjusting means below the rice washing tank so as to tightly surround the entire circumference of the outlet, and the cylindrical body is slidable on the outer circumferential surface of the cylindrical body. A top lid that can be vertically opened and closed by connecting a top and bottom open cylindrical body that is in close contact with the top lid is placed further below, and a rice cooker that is equipped with an inner pot and can be moved horizontally is placed directly below the top lid. It is characterized by being configured such that the flow path formed by the cylindrical body does not intersect with an isosceles triangle formed by an extension of the slope of the conical valve and the bottom surface of the inner pot. Automatic rice cooker. (3) Consisting of a cylindrical container with an inverted conical lower part,
A lower open cylinder with a raw material supply port at the top and an outlet that can be opened and closed with a conical valve at the bottom, a rice washing tank equipped with a water level adjustment means at the top, and the entire circumference of the outlet sealed. A vertically open cylindrical body that is slidably in close contact with the outer circumferential surface of the cylindrical body is connected upwardly, and an upper lid that can be opened and closed vertically is disposed below the lid, and an inner pot is mounted and the upper lid is vertically opened and closed. The rice cooker is configured such that a rice cooker that is freely movable is arranged directly under the upper lid, and the flow path formed by the cylinder is an isosceles triangle formed by an extension of the slope of the conical valve and the bottom surface of the inner pot. An automatic rice cooking device characterized in that it is configured so as not to intersect with the water level adjusting means and the opening/closing output signal of the conical valve as input, and transmits an output signal to start a rice washing process.