JPH09140577A - Continuous rice cooking machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accomplish rice cooking without nonuniformity by forming the corner of the base of a pot into a curved surface and providing a burner group comprising the main burner group and a pair of burner groups which are opposite to the corner part and inclined upward in a rice cooking machine in which rice cooking posts transferred by a conveyer are heated by a gas burner group. SOLUTION: When rice cooking pots 6 for storing washed rice and water are continuously supplied from a pot carry-in part, and handles 7 are supported on a chain conveyer 2 to be moved in a rice cooking furnace 1, the rice cooking pots 5 are heated by each gas flame of the main burner group to the bases and the auxiliary burner group to the corner parts. At this time, the rice cooking pots 5 are formed in such a manner that the corner parts extending from the base toward the side surfaces are like a curved surface with a large curvature. A burner pipe 9 comprises a main burner pipe 14 disposed just under the base of the rice cooking pot 5 and auxiliary burner pipes 15, 15 which are opposite to the corner parts and inclined upward to the main burner pipe 14. Thus, the whole of rice cooking pots 5 can be heated quickly and uniformly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous type rice cooker for heating rice by a gas burner installed below a conveyer conveyer while transporting a large number of rice cookers by means of a conveyer to continuously cook rice.

[0002]

2. Description of the Related Art Conventionally, as a continuous type rice cooker in which a large number of rice cookers are transported by a conveyer conveyor and heated by a gas burner installed below the conveyer conveyor, a device disclosed in Japanese Patent Publication No. 14590/1976. , Shokoku Sho 5
There is one disclosed in Japanese Unexamined Patent Publication No. 6-16645. The former one fixes the position of the gas burner to the most efficient heating position from the beginning of rice cooking until most of the water in the rice cooker is absorbed by the rice grains, and after that the position of the gas burner is fixed to the rice cooker. By moving it further away, it is possible to expect good cooking at all times without the need to adjust the heat. In the latter case, a gas burner block of a certain length parallel to the traveling direction of the conveyor is placed close to the traveling direction in the high-cooking area in the early stage of rice cooking, and in the low-temperature steaming area in the latter half of the rice cooking. It is arranged at a predetermined interval in the traveling direction.

[0003]

In the above-mentioned known continuous type rice cooker, the position of the gas burner is variously devised so that the cooked food will have an excellent taste, but the shape of the bottom of the rice cooker Has a flat bottom, so uneven heating and uneven cooking may occur. In other words, while the rice cooker travels and moves on the gas burner group, only the portion of the bottom of the rice cooker that directly hits the gas burner is directly and continuously heated, and heating unevenness occurs between the cooker and the portion that is off the gas burner. . That is, the side surface of the rice cooker that is removed from directly above the gas burner is heated by heat conduction from the bottom surface and heat conduction of the ambient temperature in the rice cooker, and uneven heating occurs between the bottom surface and the side surface of the rice cooker. . For this reason, the rice grains and water in the rice cooker flow irregularly, which tends to cause uneven cooking.

In view of the above problems, the present invention is a continuous type rice cooker capable of uniformly heating the entire rice cooker with a gas flame and reducing heat loss from the rice cooker to the outside to perform uniform rice cooker. It is a technical challenge to provide a machine.

[0005]

In order to solve the above-mentioned problems, the present invention is to transfer a rice cooker by an endless transfer conveyor provided in a rice cooker, and a plurality of blocks of gas burner groups installed below the conveyor. Is a continuous rice cooker that heats and cooks the rice cooker by means of which the corners of the bottom of the rice cooker are formed in a curved shape, and the gas burner group of the plurality of blocks is arranged directly below the bottom of the rice cooker. A technical measure was taken to be composed of a main burner group provided and a pair of sub-burner groups which are arranged so as to be inclined upward with respect to the main burner so as to face the corners.

Further, in the gas burner group of the plurality of blocks, a plurality of strip-shaped burners provided in a direction orthogonal to the conveyer may be continuously arranged in the transfer direction of the rice cooker.

Further, in the gas burner group of a plurality of blocks, a plurality of long burners provided in parallel with the conveyer conveyor may be provided in series in the transfer direction of the rice cooker.

[0008]

According to the present invention, the rice cooker has the corners of the bottom surface formed into a curved shape, and the gas burner group of a plurality of blocks includes the main burner group disposed immediately below the bottom surface of the rice cooker,
Since it is composed of a pair of sub-burner groups that are inclined upward with respect to the main burner so as to face the corners, the bottom surface of the rice cooker has a substantially spherical shape, and the main burner group and the pair of sub-burner groups form a pair. Since the entire rice cooker is heated by the sub-burner group of, the heat loss from the rice cooker to the outside of the rice cooker is reduced, and the bottom of the rice cooker does not come out of the flame of the gas burner, so it is heated to rice and water. No unevenness occurs. That is, it is because the convection of water near the bottom of the rice cooker and the convection of water near the left and right corners cause the rice and water to flow at a plurality of points in the rice cooker while regularly flowing.

In the gas burner group of the plurality of blocks, a plurality of strip-shaped burners provided in a direction orthogonal to the conveyer conveyor may be provided in series in the transfer direction of the rice cooker, or a long burner provided in parallel with the conveyer conveyor. Since it is possible to install a plurality of scale burners in the transfer direction of the rice cooker, it is possible to uniformly heat the entire rice cooker regardless of the shape of the burner.

[0010]

1 is a side sectional view of a continuous rice cooker according to the present invention, FIG. 2 is an enlarged sectional view showing the structure of a rice cooker and a burner, and FIG. 3 is a plan view taken along the line AA of FIG. It is a figure. In FIG. 1, reference numeral 1 is a tunnel-shaped rice cooker, and the rice cooker 1
A pot loading section 3 is formed at the left end of the rice cooker, and a pot unloading section 4 is formed at the right end of the rice cooker 1. Inside the rice cooker 1, for example, a pair of left and right endless chain conveyors 2 are horizontally installed as a conveyor. The endless chain conveyor 2 is rotatably hung on a plurality of sprockets 6 and attached to both side grips 7 and 7 (see FIG. 2) of the rice cooker 5 so as to be suspended. Is configured so that it can be transferred inside the rice cooking furnace 1.

The gas burner (see FIG. 1) provided below the rice cooker 5 comprises a plurality of blocks (8A-8 in this embodiment).
P block 16) gas burner group 8
The gas burner group 8 is formed by bundling four burner pipes 9, for example, and can heat and cook the rice in the rice cooker 5. Then, reference numerals 10A to 10P are gas burner group 8
11A is a gas pipe that communicates with A to 8P, respectively.
~ 11P is interposed in each of the gas pipes 10A to 10P,
This is a solenoid valve capable of changing the thermal power of each of the gas burner groups 8A to 8P.

In FIG. 2, the rice cooker 5 has corners 5A and 5B extending from the bottom surface 5C in the lateral direction of the rice cooker in the shape of a curved surface having a large curvature, and can accommodate an appropriate amount of rice 12 and water 13. Is configured as follows. And the rice cooker 5
The gas burner group of the plurality of blocks is arranged below. That is, FIG. 2 shows a three-dimensional arrangement of one burner pipe 9 in the gas burner group 8A composed of a plurality of burner pipes 9. This one burner pipe 9
Is tilted upward with respect to the main burner pipe 14 disposed directly below the bottom surface 5C of the rice cooker 5 and the main burner pipe 14 so as to face the corners 5A and 5B (in the shape of an inverted figure eight). ) The auxiliary burner pipes 15 and 15 arranged.

Next, the planar arrangement of the above-described gas burner groups 8A to 8P will be described in detail with reference to FIG. In each of the gas burner groups 8A to 8P, four strip-shaped burner pipes 9 provided in a direction orthogonal to the chain conveyors 2 and 2 are continuously provided in the transfer direction of the rice cooker 5 (arrow direction in FIG. 3). However, the strip-shaped burner pipe 9 is further divided into a main burner pipe 14 and a pair of sub-burner pipes 15. That is, one gas burner group (for example, 8
In E), a total of 12 burner pipes including four main burner pipes 14, four sub-burner pipes 15 on the left side in the traveling direction, and four sub-burner pipes 15 on the right side in the traveling direction are arranged. . Reference numeral 14A is a main burner group formed by connecting a plurality of the main burner pipes 14 in series, and reference numeral 15
A is a sub-burner group formed by connecting a plurality of the sub-burner pipes 15 in series.

Next, the operation of the above structure will be described. The rice cooker 5 containing rice 12 that has been washed and dipped in advance and an appropriate amount of water 13 is continuously and sequentially supplied from the kettle carry-in section 3, and the handle 7 is supported on the chain conveyor 2 to move the inside of the rice cooker 1 Move to move. Then, the rice cooker 5 supplied into the rice cooker 1 is heated by the plurality of blocks of gas burner groups 8A to 8P installed below the chain conveyor 2. At this time, the rice cooker 5 has the main burner group 14A for the bottom surface 5C.
Gas flame and the sub-burner group 15 for the corners 5A and 5B
Due to the gas flames of A and 15A, the entire rice cooker 5 is rapidly and uniformly heated. That is, the convection of water near the bottom surface 5C of the rice cooker 5 and the convection of water near the corners 5A and 5B cause the rice 12 and the water 13 to flow regularly at a plurality of locations in the rice cooker 5 while heating. This is because

Further, since the bottom portion of the rice cooker 5 has a substantially spherical shape, there is no portion that is removed from the flame of the gas burner, and heat loss from the rice cooker to the outside of the rice cooker is reduced.

When the rice cooker 5 is heated by the gas burner groups 8A to 8P, it is possible to change the heating power of each of the gas burner groups 8A to 8P by the solenoid valves 11A to 11P, and a control device (not shown). ), The heating power control of each gas burner group is performed so as to follow the rice cooking pattern (the cooking process, the boiling maintaining process, and the baking process) set in advance. Even in such thermal power control of the gas burner groups 8A to 8P, the rice cooker 5 as a whole is heated rapidly and uniformly, so that the rice cooking unevenness does not occur.

The above gas burner groups 8A to 8P
Is a plurality of strip-shaped burner pipes 9 provided in a direction orthogonal to the chain conveyor 2 in the transfer direction of the rice cooker 5, but the invention is not limited to this. A plurality of long burner pipes 9 provided in parallel may be continuously provided in the transfer direction of the rice cooker 5. This will be described with reference to FIGS. 4 and 5.

In FIG. 4, a main burner group 14A arranged immediately below the bottom surface 5C of the rice cooker 5 is a bundle of four long main burner pipes 14. Sub-burner group 15A inclined upward
Is a bundle of two long sub-burner pipes 15. Further, in FIG. 5, the main burner pipe 14 and the sub-burner pipes 15 and 15 are provided in parallel with the chain conveyor 2, and a plurality of these long burners are continuously provided in the transfer direction of the rice cooker to separate them. The gas burner groups 8A to 8P are used.

Gas burner group 8A to
Even in 8P, the rice cooker 5 rapidly and uniformly heats the entire rice cooker 5 by the gas flame of the main burner group 14A with respect to the bottom surface 5C and the gas flame of the sub-burner groups 15A, 15A with respect to the corners 5A, 5B. To be done.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a continuous rice cooker of the present invention.

FIG. 2 is an enlarged cross-sectional view showing the configurations of a rice cooker and a burner.

FIG. 3 is a plan view taken along the line AA of FIG.

FIG. 4 is an enlarged sectional view showing another embodiment of the burner.

FIG. 5 is a plan view showing another embodiment of the burner.

[Explanation of symbols]

 1 Rice Cooker 2 Chain Conveyor 3 Kettle Carry-in Section 4 Kettle Carry-out Section 5 Rice Cooker 6 Sprocket 7 Handle 8 Gas Burner Group 9 Burner Pipe 10 Gas Pipe 11 Solenoid Valve 12 Rice 13 Water 14 Main Burner Pipe 14A Main Burner Group 15 Secondary Burner Pipe 15A Secondary burner group

Claims (3)

[Claims] 1. A continuous type rice cooker that transfers an rice cooker by an endless transfer conveyor provided in a rice cooker, and heats the rice cooker by a plurality of blocks of gas burner groups installed below the conveyor to cook rice. The rice cooker has curved bottom corners, and the plurality of blocks of gas burner groups should face the corners of the main burner group arranged directly below the bottom surface of the rice cooker. A continuous type rice cooker comprising a pair of sub-burner groups which are arranged to be inclined upward with respect to the main burner group. 2. The continuous rice cooker according to claim 1, wherein the gas burner group of the plurality of blocks comprises a plurality of strip-shaped burners provided in a direction orthogonal to the transport conveyor in a row in the transfer direction of the rice cooker. . 3. The continuous rice cooker according to claim 1, wherein the gas burner group of the plurality of blocks comprises a plurality of long burners arranged in parallel with the transport conveyor in a line in the transfer direction of the rice cooker.