JPH0751165A - Continuous automatic rice cooking device - Google Patents

Abstract

PURPOSE:To improve the taste of rice by uniformly making rice into a starch by moving the heating point of a pot bottom in a breathwise direction in a boiling latter term process in which the almost 85% of free water is lost by boiling and the flow property of rice is eliminated. CONSTITUTION:A lot of burners 203 and 204 composed of plural burner pipes 20 in a fixed length formed in parallel are arranged in the lower direction of a pair of right and left non-terminal chain conveyers so that the burner pipes 20 can be almost parallel with the moving direction of the chain conveyers, and a rice cooking pot to be moved while being hung between the right and left chain conveyers is heated by the burners. Concerning such a continuous automatic rice cooking device, the burner pipes 20 of the burners 204 which belong to the latter half part of a boiling block to perform boiling among a lot of burners are inclined right and left.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous type automatic rice cooker in which a large number of rice cookers are continuously transferred by a conveyor and heated by a burner installed below the conveyor to automatically cook rice. It is about.

[0002]

2. Description of the Related Art As a continuous automatic rice cooker, Japanese Patent Publication Sho 56
As described in Japanese Patent No. 16645, a large number of rice cookers are suspended and transferred in a line between a pair of left and right endless chain conveyors, and a fixed length below the chain conveyors and parallel to the traveling direction of the conveyors. A plurality of gas burners consisting of multiple parallel burner pipes are placed closely in the anteroposterior direction in the high-heat cooking area in the early stage of rice cooking, and there is a specified interval in the front and rear in the low-pressure steaming area in the latter half of rice cooking. It is known that they are arranged.

[0003]

In the above known rice cooking device, the entire area where the gas burner is arranged is divided into a cooking area by high heat in the early stage of rice cooking and a steaming area by low heat in the latter half of rice cooking.
In the cooking area, multiple gas burners are densely arranged,
The same gas burners were roughly arranged in the steaming area, and the direction of the burner pipes that compose the gas burner was fixed in parallel with the chain conveyor in all areas, so the part directly above the burner pipe on the bottom of the rice cooker. Only the heat is directly and continuously heated, and uneven heating occurs between the burner pipe and a portion deviated from just above the burner pipe, which causes the following problems.

That is, according to the research conducted by the present inventor, it has been found that the heating process for the high-cooking in the early stage of rice cooking should be divided into at least two steps, ie, a temperature raising boiling step and a boiling late step, to consider the heating conditions. First of all, in the temperature rising boiling step, the temperature rising step from the start of rice cooking to the start of boiling, and a few minutes after the start of boiling, about 85% of free water is absorbed by rice,
Including the initial boiling process until the fluidity of rice becomes extremely small, it is necessary to reach boiling in the shortest possible time in the above temperature raising process. It was found that it is necessary to allow the rice to rapidly absorb water and to convert β starch into α starch. Therefore, in the temperature raising / boiling step including the temperature raising step and the initial boiling step, it is desirable to continuously heat the same point on the bottom of the kettle as in the above-described cooking step.

However, if most of the free water, for example 85%, is lost in the above boiling initial step, the flow of rice becomes almost impossible. When heated, the remaining water will boil up through the existing rice gap only at the same point as the heating point of the kettle, that is, from a specific boiling nucleus, and the water at other points will form a new rice gap. Since it did not boil up, it became impossible to uniformly make α-starch of rice, and cooked rice with a good taste could not be obtained.

According to the present invention, most of the free water is lost in the initial boiling step of the temperature raising boiling step, and the heating point at the bottom of the pot is moved in the latter boiling step after the fluidity of the rice disappears. This enables uniform α-starch formation and makes it possible to obtain cooked rice with a good taste.

[0007]

A continuous automatic rice cooker according to a first aspect of the present invention comprises a plurality of burner pipes, each of which is composed of a plurality of burner pipes arranged in parallel, below a pair of left and right endless chain conveyors. Are arranged so as to be substantially parallel to the transfer direction of the chain conveyor, and the rice cooker suspended and transferred between the left and right chain conveyors is heated by the burner to heat and boil the contents of the rice cooker. In the continuous automatic rice cooker adapted to sequentially perform steaming, the burner pipe of the burner belonging to the latter half of the boiling area in which the boiling is performed is inclined to the left and right among the plurality of burners. .

The continuous automatic rice cooker of the second invention is
The burner pipe of the burner belonging to at least the latter half of the boiling area in which the above-mentioned boiling is carried out is formed so as to be tiltable to the left and right among a large number of burners arranged in the same manner as in the first aspect of the present invention.

In the above first and second inventions,
The latter half of the boiling area is preferably the area after the point where about 85% of the free water is lost due to the boiling of the contents of the rice cooker, that is, the point after the initial boiling step is completed. The inclination angle of the burner pipe is preferably such that one end of the burner pipe is displaced from the other end in the width direction by the distance between two adjacent burner pipes. In the area where the steaming step following the boiling step is performed (steaming area), the burners or burner pipes described above should be placed coarser than in the boiling area, or the burner should be lowered to move away from the rice cooker, or the burner and rice cooker should be removed. A metal plate for indirect heating can be interposed therebetween, and the burner pipe of the final burner in the steaming area can be inclined or formed inclinable as described above.

[0010]

In the first aspect of the present invention, the burner pipe of the burner belonging to the latter half of the boiling area is tilted to the left and right. Therefore, when the rice cooker moves on this burner, the heating is made to face the burner pipe at the bottom of the cooker. The point moves in the width direction. Therefore,
When most of the free water is lost and the flow of rice disappears, the remaining water does not boil up through the existing rice gap only from specific boiling nuclei, and the water at other points also becomes fresh rice. The boiling point rises through the gap, so that the starch in the rice cooker is uniformly made into α-starch, and the taste of the resulting cooked rice is improved.

In the second invention, the burner pipe of the burner belonging to the latter half of the boiling area is formed so as to be able to be tilted to the left and right. Therefore, the rice cooked according to the first invention is tilted by tilting the burner pipe to the left and right by an appropriate amount. The device can be configured. When the burner pipe in a wide area including the latter half of the boiling area is formed so as to be tiltable, even when the capacity or the content amount of the rice cooker is changed, the desired burner pipe is moved to the left or right according to the change. Can be tilted.

[0012]

1 and 2 are plan views of a continuous type automatic rice cooker, in which FIG. 1 shows the first half and FIG. 2 shows the second half. In FIGS. 1 and 2, reference numeral 10 denotes a tunnel-shaped chamber, and a pair of left and right endless chain conveyors 11 and 11 penetrates the chamber 10.
1, a lead-in portion 12 is formed at the left end of FIG. 1, and a lead-out portion 13 is formed at the right end of FIG. 2, and the rice cooker 14 (see FIG. 3) is provided between the left and right endless chain conveyors 11 and 11 in the lead-in portion 12. ) Is attached in a hanging shape on both handles, and the rice cooker 14 is taken out at the lead-out portion 13.

Below the inside of the chamber 10, a large number (12 in this embodiment) of gas burners 201, 202, ... 21 are provided along the chain conveyors 11, 11.
1, 212 are arranged in a line, the first gas burner 201 to the third gas burner 203 are in the temperature raising and boiling area 15 for the temperature raising step and the boiling initial step, and the fourth gas burner 204 to the seventh gas burner 207 are the above-mentioned. And the eighth gas burner 208 to the twelfth gas burner 212 form the steaming section 17, respectively.

Then, the gas burner 2 in the latter boiling zone 16
The burner pipes of 04, 205, 206, 207 and the last gas burner 212 of the steaming area 17 are provided with a slight inclination to the left and right, and all the other burner pipes are provided parallel to the direction of the chain conveyor 11. Also, the gas burners 208, 209, 21 belonging to the steaming area 17
0, 211 and 212 are other gas burners 201 to 2
It is installed at a position slightly lower than 07, and a U-shaped cross-section heating plate 18 for indirect heating is provided thereon.

Each of the above gas burners 201 to 212
Like the third gas burner 203 shown in FIGS. 4 and 5, each has a fixed length and has a large number of flame ports 21 on its upper surface.
The eight burner pipes 20 that are densely opened are arranged side by side in parallel. That is, the eight burner pipes 20 are divided into two sets of four pipes, and the lower central portion of each of the four burner pipes 20 is integrally connected by the connecting pipes 22 with blind ends. In the center of the lower surface of the left and right connecting pipes 22, the introduction pipe 23
(See FIG. 5) is provided to project in the vertical direction, and a flange 24 is formed at the lower end thereof.

On the other hand, a gas supply pipe 25 is disposed below the left and right connecting pipes 22, 22 in the width direction, and the left and right supply branch pipes corresponding to the left and right introduction pipes 23, 23 are provided in the gas supply pipe 25. 26, 26 are provided so as to project upward, and a flange 27 is formed at the end thereof. Then, the flange 24 of the introduction pipe 23 and the flange 27 of the supply branch pipe 26, which are vertically opposed to each other, are detachably connected by a clamp 30 together with a gasket (not shown) interposed therebetween.

This clamp 30 is, as shown in FIG.
One end of each of the two semi-circular levers 31 and 32 having a V-shaped cross section is swingably connected by a link 33, and one semi-circular lever 3
The fastener 34 is attached to the free end of one, and the free end of the other semi-circular lever 32 is removed from the fastener 34, and the two semi-circular levers 31 and 32 are opened so that the above-mentioned opposing flanges 24, Then, the two semi-circular levers 31, 32 are strongly closed by hooking the fastener 34 on the other semi-circular lever 32 and tightening the bolt 35 by connecting the two flanges 24, 27. And bolt 3 above
By loosening 5, the phases of the flanges 24, 27 can be shifted and the direction of the upper burner pipe 20 can be adjusted. The gas burner 204 shown in FIG. 4 is obtained by inclining the left and right burner pipes 20 symmetrically in this way.

In the above structure, the length of the burner pipe 20 is set to 400 mm, the interval between the left and right burner pipes 20 is set to 45 mm, and the gas burners 204, 205, 206, 207 and the steaming region in the latter boiling region 16 are set. Each burner pipe 20 of the last gas burner 212 of 17 is inclined symmetrically by 5 degrees, and each of the remaining burner pipes 2
No. 0 was fixed in parallel with the direction of the chain conveyor 11 and the rice cooker was continuously heated to obtain cooked rice having a good taste. In this embodiment, the gas burner 212 at the end of the steaming section, that is, the burner pipes 20 in the section existing to remove the water existing as free water after evaporating from the cooked rice in the rice cooker is also inclined 5 degrees to the left and right. The free water is uniformly removed, and the taste is further improved as compared with the case where the burner pipe 20 is straight.

[0019]

The continuous automatic rice cooker according to the first aspect of the present invention is a continuous automatic rice cooker in which the rice cooker is suspended between the left and right chain conveyors and transferred while being heated by a plurality of burners arranged below. In the rice cooker, the burner pipe of the burner belonging to the latter half of the boiling area in which a large number of burners are boiled is tilted to the left and right, so most of the free water is lost due to boiling When the flow disappears, the remaining water does not boil up through the existing rice gap only from specific boiling nuclei, and the water at other points also boil up through the new rice gap, so the rice cooker The starch in the inside is uniformly α-starched to improve the taste of cooked rice.

Further, in the invention described in claim 2, the burner pipe of the burner belonging to at least the latter half of the boiling area in which the above-mentioned boiling is carried out is formed so as to be able to be tilted left and right among the plurality of burners. Therefore, the left and right inclination angles of the burner pipe can be adjusted to improve the taste of cooked rice in the same manner as in the invention of claim 1, and when the capacity of the rice cooker or the content amount is changed, this change is also made. Depending on the situation, the desired burner pipe can be tilted left and right by an appropriate amount to enable optimum rice cooking.

[Brief description of drawings]

FIG. 1 is a plan view of a front half of an embodiment of the present invention.

FIG. 2 is a plan view of the latter half part following FIG.

FIG. 3 is a vertical sectional view with a part of FIGS. 1 and 2 omitted.

FIG. 4 is an enlarged plan view of a burner.

FIG. 5 is an enlarged side view of the burner.

6 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

10: chamber, 11: endless chain conveyor, 14:
Rice cooker, 15: Temperature rising boiling area, 16: Boiling late area, 1
7: Steaming area, 18: Hot plate, 20: Burner pipe, 2
1: Flame mouth, 22: Connection pipe, 23: Introduction pipe, 24, 27:
Flange, 25: Gas supply pipe, 26: Supply branch pipe, 30:
Clamps 31, 32: Semi-circular levers, 33: Connection links, 34: Fasteners, 35: Bolts, 201-212: Gas burners.

Claims (2)

[Claims] 1. A plurality of burners consisting of a plurality of parallel burner pipes of a fixed length are arranged below a pair of left and right endless chain conveyors so that the burner pipes are substantially parallel to the transfer direction of the chain conveyor. Then, in the continuous automatic rice cooker configured to heat the rice cooker suspended and transferred between the left and right chain conveyors by the burner to raise, boil and steam the contents of the rice cooker in order.
A continuous automatic rice cooker characterized in that, of the plurality of burners, the burner pipes of the burners belonging to the latter half of the boiling area where the boiling is performed are inclined to the left and right. 2. A plurality of burners consisting of a plurality of parallel burner pipes of a fixed length are disposed below a pair of left and right endless chain conveyors so that the burner pipes are substantially parallel to the transfer direction of the chain conveyor. In the continuous automatic rice cooker configured to heat the rice cooker suspended and transferred between the left and right chain conveyors by the burner, a boiling area in which at least the boiling is performed in the multiple burners. The continuous type automatic rice cooker is characterized in that the burner pipe of the burner belonging to the latter half of the above is formed so that it can be tilted left and right.