JPH0789992B2 - Grain dipping device in steamed rice cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain dipping device in a steamed rice cooker.

(Prior Art) A steam-cooking rice cooker has a structure in which a grain steamed with high temperature steam is dipped in high temperature water of a dipping device and then the grain is boiled again with high temperature steam to cook rice.

(Problems to be Solved by the Invention) However, if the water temperature of the high-temperature water of the dipping device that constitutes the rice cooking device changes significantly, the gelatinization of grains is likely to change, and it may not be possible to obtain high quality rice and rice.

(Means for Solving the Problem) Therefore, the present invention is intended to reduce the change in the water temperature of the high-temperature water stored in the immersion tank, and has taken the following technical means. That is, in a steam cooked rice cooker in which the grain that has been bathed in high temperature steam is immersed in the high temperature water of the dipping device 1 and then bathed in high temperature steam to cook rice, the dipping tank 3 of the dipping device 1 A bottom wall of the dipping section B is formed by forming an upward surface on the guide terminating side and including a draining section A and a conveying device 4 for forcibly conveying the grains in the dipping section B extending to the guiding terminating side. A grain dipping device in a steam cooker comprising a steam passage 5 for supplying high temperature steam capable of heating the high temperature water stored in the dipping tank 3 via the bottom wall 2 to the outer surface side of the dipping device 2. It is a thing.

(Embodiment) Explaining one embodiment of the present invention with reference to the drawings, a grain steaming and cooking device 6 includes a primary steaming device 8 on a top of a frame 7.
A conveyor 9, a dipping device 1, a secondary steaming device 10, etc. are provided, and a motor 11, which is a power source of a driving unit, is provided below the frame 7.
A hot water controller 12 as a source of high temperature water, a steam controller 13 with a pressure controller capable of cleaning high temperature steam, and the like are provided.

The immersion device 1 includes an immersion tank 3 and a transfer device 4. The dipping tank 3 has an arc-shaped surface at the beginning of the guide.
2a, a bottom wall 2 provided with a dipping portion B having an intermediate portion formed on a substantially horizontal surface 2b, and a drainage portion A formed on an inclined surface 2c having a guide end portion directed upward, and a bottom wall 2 of the bottom wall 2 It is formed in a substantially U-shaped cross-section by the side walls 14 which are continuously formed so as to be connected to the respective left and right end faces.

Further, the horizontal surface 2b and the end of the inclined surface 2c are arc-shaped surfaces 2d.
Are installed in series.

Further, heat insulation tanks 15 capable of storing high temperature water are provided on both lateral sides of the immersion tank 3, respectively, and high temperature water is circulated between the heat insulation tank 15 and the immersion tank 3 through a net 16. It is configured to be able to.

Further, when the amount of high-temperature water stored in the immersion tank 3 (set to about 85 ° C. in the embodiment) becomes equal to or less than a predetermined amount, that is, the heat retaining tank 15 communicating with the immersion tank 3 When the amount of high-temperature water that can be stored inside and that can keep the water in the immersion tank 3 warm from the side wall 14 side of the immersion tank 3 falls below a predetermined amount, this water amount sensor (not shown) causes The signal is output and received by a microcomputer (not shown). Then, the microcomputer receiving this output signal outputs a drive command signal to a supply means (not shown) capable of supplying / stopping the hot water heated by the hot water controller 12, so that the supply means is supplied. The high temperature water sent through the
While being stored inside, the amount of water in the immersion tank 3 supplied via the heat retaining tank 15 also increases. When the water amount reaches a predetermined amount, the water amount sensor outputs a full signal to the microcomputer, so that the microcomputer outputs a drive stop command signal to the supply means to stop the supply of high temperature water. .

The carrier device 4 includes an endless belt 17 rotatably provided in a direction of an arrow,
Both left and right end surfaces are close to the inner surface of each side wall 14 of the dipping tank 3, and the lower end surface is close to the inner surface of the bottom wall 2 of the endless belt 17. I have it.

On the outer surface of the submerged portion B of the bottom wall 2, a steam passage plate 20 having a plurality of outwardly bulging portions 19 provided at predetermined intervals is integrally attached. Immersion part B of bottom wall 2
The outer surface of the steam generator 5 forms a steam passage 5 capable of guiding the high temperature steam to be cleaned through the steam controller 13. In addition, the end portions of the steam passage 5 are alternately communicated.

(Operation) Next, the operation will be described.

Bathing hot steam in the primary steaming device 8 and then the conveyor 9
The grains sent into the dipping tank 3 by the forcibly transported to the secondary steaming device 10 side by the grain pushing plate 18, and at the time of this transportation, the grains are stored in the dipping tank 3. Immerse water by immersing it in high-temperature water at about 85 ° C. After that, the grain pushing plate 18 of the transport device 4 sends the secondary steaming device 10 from the guide end portion of the bottom wall 2 to the secondary steaming device 10, and the grains drained at the draining portion A on the way generate high temperature steam of about 115 ° C. It is bathed and cooked.

Then, since the high-temperature steam sent into the steam passage 5 heats the bottom wall 2 of the immersion part B, the high-temperature water stored in the immersion tank 3 is also heated via this bottom wall 2 and set in advance. It is possible to prevent a large change in water temperature of about 85 ° C. In the embodiment, high temperature steam is continuously supplied into the steam passage 5 in order to prevent a large change in the water temperature. However, a sensor capable of detecting the water temperature is provided so that the temperature outside the predetermined water temperature is exceeded. The high temperature steam may be supplied when is detected.

Further, since the steam passage 5 is not provided on the guide end side of the bottom wall 2, the soaked grains do not boil when passing through the bottom wall 2. Moreover, since the heat-retaining tank 15 storing high-temperature water is provided on the lateral side of the immersion tank 3 and the steam passage 5 capable of sending high-temperature steam is provided on the bottom wall side, the immersion tank 3 is used during rice cooking. It is possible to prevent a large change in water temperature such as high-temperature water stored inside and improve quality.

(Effect) Since the high-temperature water stored in the immersion tank 3 undergoes the draining action at the drainage section A during the transportation, it is possible to reduce the carry-out of the high-temperature water to the outside of the immersion tank 3. Therefore, the amount of replenishment of water can be reduced. Further, since this high-temperature water is stored in the immersion tank 3 having the heated bottom wall 2, it is possible to reduce the change in water temperature. Further, since the steam passage 5 capable of supplying high-temperature steam is provided on the outer surface side of the bottom wall 2 of the immersion part B, it is possible to improve the quality without boiling the grains during the transportation of the grains in the immersion tank 3.

[Brief description of drawings]

FIG. 1 is an overall side view of the rice cooker, FIG. 2 is a side sectional view of the dipping device, FIG. 3 is a front sectional view with a part thereof cut away, and FIG. 4 is a bottom view of the steam passage plate. Explanation of symbols 1 ... Immersion device, 2 ... Bottom wall, 3 ... Immersion tank, 4 ...
… Conveyor device, 5 …… Steam passage, 6 …… Steaming and cooking device, 7
…… Frame, 8 …… Primary steaming device, 9 …… Conveyor,
10 …… Secondary steaming device, 11 …… Motor, 12 …… Hot water controller, 13 …… Hot water controller, 14 …… Side wall, 15 …… Heat tank, 16 …… Mesh, 17 …… Endless belt, 18 ...... Cereal push board, 19 ...
… Bulging part, 20 …… Steam passage plate.

 ─────────────────────────────────────────────────── --- Continuation of front page (56) References JP-A-61-70949 (JP, A) JP-A-60-139214 (JP, A) JP-A-60-29114 (JP, A) JP-A-60- 12945 (JP, A)

Claims (1)

[Claims] 1. A steamed rice cooker in which grains that have been exposed to high-temperature steam are immersed in high-temperature water of an immersion device 1 and then again exposed to high-temperature steam to cook rice. An upward surface is formed on the guide terminal end side of the wall 2 and a draining section A and a transporting device 4 for forcibly transporting the grains in the dipping section B up to the guide terminal end side are provided. The grain dipping in the steam cooked rice cooker in which a steam passage 5 for supplying high-temperature steam capable of heating the high-temperature water stored in the dipping tank 3 through the bottom wall 2 is provided on the outer surface side of the bottom wall 2. apparatus.