JPH10201437A - Automatic mixing device for rice and vinegar for sushi rice production - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the work efficiency by shortening the cooling time of cooked rice in a rotary drum and automatically discharging sushi rice. SOLUTION: Rotating shafts 21 and 2 are provided at central portions of left and right side walls 5b and 5b of a rotating drum 5 having a stirring member 26 therein.
1 ′ are protruded from each other, and an air passage 23
Then, the inside of the other rotation shaft 21 ′ is formed in the exhaust passage 22, respectively.
A large opening 5g for charging rice and discharging sushi rice is provided on the peripheral wall of the rotary drum 5 and opening / closing lids 5h and 5h for opening and closing the opening 5g are provided via opening / closing means 16, 16 '. And configure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic mixing apparatus used for preparing sushi rice by mixing vinegar and the like into rice cooked for sushi and mixing and stirring the mixture while applying cold air.

[0002]

2. Description of the Related Art Conventionally, this type of automatic mixing apparatus is known. According to this apparatus, first, freshly cooked rice and combined vinegar are put into a rotating drum (container). Then, air is blown into the rotating drum from one side and forced exhaust is performed by a fan from the other side. By rotating the rotating drum, the vinegar is mixed and stirred with the rice at the same time as the rice is cooled. ).

[0003]

However, it is difficult to cool a high temperature (about 90 ° C.) rice to an ideal temperature (about 40 ° C.) in a short time only by blowing and exhausting air with the above-mentioned conventional apparatus. Since it takes a long time, the amount of water contained in the cooked rice (water retention) increases, which is a major cause of deterioration of the cooked rice, and also has problems such as poor work efficiency.

[0004] Therefore, when preparing vinegared rice (shari cutting), it is an issue how to cool hot rice in a short time. Therefore, it is possible to cool hot rice to an ideal temperature in a short time. The development of methods and apparatus is highly desirable among those skilled in the art.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems and circumstances of the related art, and opens and closes an opening / closing lid after rotation of a rotating drum to remove steam accumulated in the rotating drum. The rice can be discharged to the outside all at once, and the rice can be cooled down to the ideal temperature (90 ° C to 40 ° C) in a short time, so that high quality sushi rice can be obtained efficiently and vinegared rice is prepared. It is an object of the present invention to provide an automatic mixing device of rice and vinegar or the like for producing sushi rice, which can automatically and at a time discharge sushi rice at a time and improve work efficiency.

[0006]

According to the present invention, there is provided an automatic mixing apparatus of rice and vinegar for making sushi rice according to the present invention. The rotating shaft is protruded so as to communicate with the inside of the rotating drum, the inside of one rotating shaft is formed as an air passage, and the inside of the other rotating shaft is formed as an exhaust passage. An opening for charging rice and discharging sushi rice into the drum is opened, and an opening / closing lid for opening / closing the opening is provided via an opening / closing means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 is a partially sectional front view showing an embodiment of the present invention, FIG. 2 is a plan view showing the same embodiment, FIG. 3 is a right side view showing the same embodiment, and FIG. 4 is a right side view of a rotary drum. Are respectively shown.

In FIG. 1 to FIG. 3, reference numeral 1 denotes a base plate having a plurality of (four in the illustrated example) casters 2... A supporting frame 5 vertically erected at intervals is a rotating drum supported between the supporting frames 3 and 4 so that the axis of rotation is horizontal, and 6 is a supporting frame 4 on the upper surface of the base plate 1. A combined vinegar tank removably mounted and fixed on the near side, and 7 indicates a blower installed on the side of the support frame 4 on the base plate 1.

As shown in FIGS. 1 and 2, one of the support frames 3 is formed in a vertically long box shape, and an exhaust duct 8 is formed at an upper portion thereof and is bent so that the front shape is substantially L-shaped. Both ends thereof are built in so as to open toward the upper surface and the inner surface of the support frame 3 respectively, and an exhaust fan 9 is provided at the upper end of the exhaust duct 8.
Are provided so as to face a plurality of air discharge holes 3a formed in the upper wall. On the other hand, at the lower end of the air discharge duct 8, the rotating drum 5 Are connected so as to communicate with each other.

The other support frame 4 is
In order to communicate with the rear side in the frame main body 4a having substantially the same shape as the above, a chamber 4b formed in a vertically long box shape and having a substantially inverted L-shape on the upper surface is provided. In the frame main body 4a of the support frame 4, a rotary drive mechanism 10 for the rotary drum 5 is provided at a substantially middle portion thereof, and a pump 11 for injecting vinegar is provided therein. Is mounted, and a blower tube 13 for sending cool air in the rotary drum 5 is built in the adjacent chamber 4b.

As shown in FIGS. 1 to 4, the rotary drum 5 has a bottom wall 5a having a substantially semi-cylindrical cross section, and left and right side walls 5b, 5b provided at both ends in the longitudinal direction. A drum body 5A having an upper portion formed as an opening 5c, a top wall 5d having a substantially semi-cylindrical cross section, and lower left and right side walls 5e, 5e connected to both ends in the longitudinal direction. The opening 5f has a lid 5B which has substantially the same shape as the drum main body 5A and is formed in a small size.

That is, the opening 5f of the cover 5B is abutted against the opening 5c of the drum body 5A, and the clampers 14 attached to the outside of the left and right side walls 5b, 5b of the drum body 5A. When the lid 5B is detachably attached to the drum main body 5A, the cross section of the entire rotary drum 5 is configured to be substantially cylindrical.

The bottom wall 5a of the drum body 5A and the top wall 5d of the lid 5B constitute a peripheral wall of the entire rotary drum 5, and a part of the peripheral wall, that is, the lid 5B in the illustrated example.
In the circumferential center of the top wall 5d, there is an opening 5g in the axial direction (in FIG. 1 and FIG. 2) for charging the rice M into the drum body 5A and discharging the sushi rice blended (shari-cut). A pair of two opening / closing lids 5h, 5h each having a full width and a wide width in the circumferential direction and having an arcuate cross section for opening and closing the opening 5g.
By pivotally connecting the symmetrical ends to the opposing opening edges of the opening 5g with the support shafts 15 and 15 ', the opposing ends turn inward and abut each other, and are indicated by solid lines in FIG. The openings 5g are closed as shown, and the opposite ends are pivoted outward as indicated by the two-dot chain lines in FIG. 4 to open the openings 5g.

The above-mentioned pair of opening / closing lids 5h, 5h are composed of arc-shaped plates 5i, 5i forming the main body thereof and left and right side walls 5j, 5j forming a band-shaped arc continuously provided on both sides thereof.
The left and right side walls 5j, 5j are the left and right side walls 5 of the lid 5B.
e and 5e are formed so as to be fitted to the outside and closed. Thus, the opening 5g can be closed without a gap.

As shown in FIGS. 1 to 4, on the left and right sides of the lid 5B of the rotary drum 5, the above-mentioned opening / closing means 16 and 16 'for the pair of opening / closing lids 5h, 5h are provided. . The illustrated opening / closing means 16, 16 ′ is provided with each opening / closing lid 5.
short links 16a, 16'a having base ends fixed to the symmetrical ends of h and 5h so as to be inclined inward and downward;
a, 16'a are integrally formed with the intermediate links 18, 18 'having one ends pivotally connected to pivots 17, 17' at the ends of the levers 16c, 16 '.
The other levers 16d, 16 'are so oriented that c faces inward.
The bent portions 16e and 1d are tilted downward and outward.
Opening / closing levers 16b, 16'b rotatably supporting 6'e on the lid 5B with the above-mentioned support shafts 15, 15 ', and respective lever portions 16c, 16' of the opening / closing levers 16b, 16'b. c
And a link shaft 19 for rotatably connecting the end of the cover and the other ends of the intermediate links 18 and 18 'to the left and right side walls 5e and 5e of the lid 5B. And a link guide 20 which has a vertically elongated guide hole 20a and the link shaft 19 is slidably engaged with the guide hole 20a in a vertical direction.

Thus, the opening / closing means 16, 16 'having the above-mentioned structure is provided.
According to the above, the opening / closing lids 5h, 5h are opened / closed as follows. In the closed state shown by the solid line in FIG.
Lever portions 16d, 16 'of opening / closing levers 16b, 16'b
When d is pressed inward as indicated by arrows a and a 'in the figure,
In FIG. 4, the right opening / closing lever 16b is rotated clockwise about the support shaft 15, and the left opening / closing lever 1 is rotated.
6'b is rotated counterclockwise about the support shaft 15 '. As a result, the other lever portions 16c and 16'c of the two opening / closing levers 16b and 16'b are moved by arrows b and b 'in the figure when the link shaft 19 at the tip thereof is slid and guided in the guide hole 20a of the link guide 20. And the one end of each of the intermediate links 18, 18 'is pulled up.

The upward movement of the intermediate links 18, 18 'causes the short links 16 connected to the intermediate links 18, 17' by pivots 17, 17 '.
a and 16'a are pivoted upward about the support shafts 15 and 15 '. Since the short links 16a and 16'a and the open / close lids 5h and 5h are fixed, the open / close lids 5h and 5' are fixed. 5
h denotes the support shafts 15 and 1 to the upper outside indicated by arrows c and c 'in the figure.
It is rotated about 5 ', and is opened as shown by the two-dot chain line in the figure. Thereby, the opening 5g of the lid 5B is formed.
Is opened and the lid is opened.

By rotating the levers 16d, 16'd in the directions opposite to the arrows a, a 'in the above-mentioned opened state, each component member operates in the direction opposite to the above-mentioned opening state,
It can be in a closed state.

The levers 16c and 16'c of the pair of left and right opening / closing levers 16b and 16'b and the pair of left and right intermediate links 18 and 18 'are each pivotally connected at the distal end by a link shaft 19. Opening / closing levers 16b, 16'b
Can be simultaneously opened and closed by operating only one of the two opening / closing levers 16b and 16'b.

The opening / closing means of the opening / closing lids 5h, 5h is not limited to the illustrated mechanism, but may be of any other structure such as using a cylinder.

As shown in FIG. 1 to FIG. 4, a cylindrical shape is formed on the outer side of the left and right side walls 5b and 5b of the drum main body 5A in the rotary drum 5 so as to coincide with the rotation axis of the rotary drum 5. Are protruded in a fixed manner so as to be outwardly symmetric and communicate with the inside of the rotating drum 5.

Of the two rotating shafts 21 and 21 ', FIG.
In FIG. 2, the inside of the left rotation shaft 21 ′ is formed in an exhaust passage 22, and is rotatably connected to the lower end of the exhaust duct 8.

In FIG. 1 and FIG. 2, the inside of the rotary shaft 21 on the right side is formed as an air passage 23, and is horizontally connected to the rotary drive mechanism 10 through the frame main body 4 a of the support frame 4.

The two rotating shafts 21, 21 'are rotatably supported by a plurality of guide rollers 24, 25, ... rotatably supported inside the support frames 4, 3, respectively. As shown in FIG. 3, the rotating drum 5 is rotated at a predetermined speed by a rotation driving mechanism 10 from a motor 10a with a speed reducer built in the frame body 4a of the support frame 4 and a gear transmission mechanism 10b. Is done.

The drum body 5A of the rotary drum 5
As shown in FIG. 1, a plurality of parallel bars 26a
The stirring member 26 formed by combining... Is detachably fixed.

Next, the infusion mechanism and the air blowing mechanism of the mixed vinegar will be described. As shown in FIGS. 1 to 3, the combined vinegar tank 6 and the pump 11 are connected by a combined vinegar suction pipe 28 via an opening / closing valve 27, and are connected to the pump 11 to extend. The other end of 29 is connected to a combined vinegar supply pipe 31 through the chamber 4b of the frame main body 4a and the inner case 30 above the chamber 4b.

The mixed vinegar supply pipe 31 is connected to the inner case 3
The air passage 2 in the rotating shaft 21 is bent at a right angle from 0 to the inside.
3 and the center of the rotary drum 5 are respectively inserted to extend to the left side wall 5b of the rotary drum 5 in FIGS. 1 and 2.

At the connection between the rotary drum 5 and each of the rotary shafts 21 and 21 ', a large number of small holes 32a are provided as shown in FIG.
1 and 2 are fixed as shown in FIGS. 1 and 2, and the tip of the combined vinegar supply pipe 31 penetrating through the center of the blower plate 32 on the rotating shaft 21 side is connected to the other end. A bearing 33 fixed to the center of the blower plate 32 'on the side of the rotating shaft 21' is rotatably supported by a bearing 33. On the lower side of the combined vinegar supply pipe 31 located in the rotary drum 5, a number of small holes 31a for injecting combined vinegar are provided.
Are formed at equal intervals across the left and right side walls 5b, 5b of the rotary drum 5.

On the other hand, as shown in FIG. 2, the blower 7 has an air blower pipe 34 extending therethrough, and a connection cover 35 connected to the end of the blower pipe 34 and protruding from the side surface of the chamber 4 b of the support frame 4. It is configured to be able to blow air to the blower tube 13 by being fitted into the hole 36.

That is, the cool air discharged from the blower 7 is supplied to the blower pipe 34, the intake hole 36, the blower cylinder 13, and the inner case 30.
Then, the air is blown into the air passage 23 in the rotary shaft 21 and is blown from the air passage 23 into the rotary drum 5. At this time, the cool air is blown into the rotating drum 5 through the annular gap 37 formed between the rotating shaft 21 and the combined vinegar supply pipe 31 in the rotating shaft 21. In the figure, reference numeral 6a denotes a handle attached to the combined vinegar tank 6.

Next, according to the illustrated embodiment, the cooked rice M
The operation of mixing and stirring vinegar W to prepare sushi rice by mixing vinegar rice (shari cutting) will be described. First, the rotation of the rotating drum 5 is adjusted so that the opening 5g thereof faces upward, the opening and closing lids 5h and 5h are opened to open the opening 5g, and a predetermined amount of cooked rice M is put into the rotating drum 5. After that, the opening / closing lids 5h and 5h are closed to close the opening 5g.

Thereafter, when a predetermined switch (not shown) on the operation panel 12 is operated to start the motor 10a,
The rotating drum 5 is rotated at a required rotation speed via the gear transmission mechanism 10b. Simultaneously, when another switch (not shown) of the operation panel 12 is operated to drive the pump 11 for infusing the mixed vinegar, the mixed vinegar W in the mixed vinegar tank 6 causes the suction pipe 2
8, the pump 11 and the delivery pipe 29 via the combined vinegar supply pipe 3
1 and is sprayed into the rotating drum 5 through the many small holes 31a. Simultaneously, when another switch (not shown) of the operation panel 12 is operated to drive the blower 7, the cool air flows into the rotary drum 5 through the blower pipe 34, the blower tube 13, and the blower passage 23 in the rotary shaft 21. Is introduced.

By properly performing such an operation, the cooked rice M and the mixed vinegar W in the rotary drum 5 are mixed and stirred by the stirring member 26 which rotates simultaneously with the rotary drum 5, and are cut. During the mixing and stirring, the blower 7 and the exhaust fan 9 operate to blow air into the rotating drum 5 and exhaust air from inside the rotating drum 5 to the outside.

After the first sharpening is performed as described above, the rotation of the rotary drum 5 is adjusted so that the opening 5g is directed upward, and the opening / closing lids 5h and 5h are moved to open the opening 5g. Is released, and the steam and hot air accumulated in the rotary drum 5 are discharged to the outside at once.

Then, the lid is closed again, the rotary drum 5 is rotated, and the second shaving is performed to obtain sushi rice. Next, the rotation of the rotary drum 5 is adjusted so that the opening 5g faces downward, and the opening and closing lids 5h and 5h are opened to open the opening 5g. Etc. are discharged automatically and all at once.

By the way, when the mixed vinegar mixed with the gelling material such as pectin, glucomannan, locust, and pullulan is mixed with the mixed vinegar W mixed with the rice M, and the mixture is cut twice, the surface of each rice grain of the sushi rice becomes A double gelling film is formed by combined vinegar mixed with pectin or the like. This 2
Among the heavy coatings, the inner coating prevents the diffusion of moisture contained in the sushi rice and keeps the sushi rice moist. The outer coating, on the other hand, has a hygroscopic property to dry the sushi rice. This prevents sushi rice from becoming chilled in the chilled temperature range (-5 ° C to 5 ° C), as well as at room temperature.
C), and can be kept humidified and water-retained, so that aging, deterioration and deterioration of taste can be prevented. The automatic mixing apparatus of the present invention is particularly effective for the double shred cutting as described above, but it is needless to say that the automatic mixing apparatus can also be applied to a conventional general mixed vinegar mixing apparatus (single shred cutting).

[0037]

According to the present invention, as described above, rice,
Blow the rotating drum with mixed vinegar from one side to the other,
After performing a predetermined number of shavings by performing rotation while performing exhaust air, steam accumulated in the rotating drum by opening the opening largely opened in the peripheral wall upward,
Hot air can be discharged to the outside at once, improving cooling efficiency, cooling hot rice to the ideal temperature in a short time, and opening the opening downward so that sushi can be cut sharply. By automatically discharging the rice at once, the work efficiency can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing an embodiment of an automatic mixing device for rice and vinegar for sushi rice production according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a right side view of the same.

FIG. 4 is a right side view of the rotary drum.

[Explanation of symbols]

 5 Rotating drum 5b, 5b Left and right side walls 5h, 5h Opening / closing lid 5g Opening 16, 16 'Opening / closing means 21, 21' Rotating shaft 22 Exhaust passage 23 Ventilation passage 26 Stirring member

Claims (1)

[Claims] A rotating shaft is provided at a central portion of each of left and right side walls of a rotating drum provided with a stirring member therein so as to communicate with the inside of the rotating drum. The inside of the rotating shaft is formed in an exhaust path, and an opening for opening rice and sushi rice in the rotating drum is opened on the peripheral wall of the rotating drum, and an opening and closing lid for opening and closing the opening is opened and closed. An automatic mixing apparatus for mixing rice and vinegar for producing sushi rice, wherein the automatic mixing apparatus is provided with means interposed.