JPH1056980A - Food mixing equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the efficiency of mixing and cooling by mixing food ingredients a plurality of times in a food mixing apparatus such as sushi rice. SOLUTION: A plurality of rotating containers 2 and 3 having a stirring member therein and an opening 28 with an opening / closing lid 27 provided on a peripheral wall 23 are transferred to the frame 1 by rotating shafts 29 and 30 projecting from the center of both left and right side walls. Each of the rotating containers 2 and 3 has one rotating shaft 29 and the other rotating shaft 30
A ventilation hole 35 and an exhaust hole 36 are provided in the axial direction of the air passage, and the ventilation hole 35 communicates with the cooler through the cool air supply pipe 4, and the exhaust hole 36 is connected to the exhaust duct 8 through the exhaust pipe 5. It is configured to communicate with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food mixing apparatus used for preparing sushi rice, so-called shari-cut, for example, when stirring and mixing rice and vinegar to make sushi rice.

[0002]

2. Description of the Related Art Conventionally, there has been known a rotary food mixing apparatus used for preparing sushi rice, so-called shari cutting.
This device puts cooked rice and vinegar in a rotating container having a baffle plate or the like and rotates the rotating container while blowing the air. The rotating device is configured to discharge air to the outside simultaneously with the air blowing during the rotation.

[0003] By the way, without impairing the taste and luster of sushi rice,
For the purpose of keeping the sushi rice fresh for a long time at low temperature, mixed rice vinegar containing pectin is mixed with rice cooked for sushi and stirred to make sushi rice, and each rice grain is made. The colloidal film of the pectin is formed on the surface of the pectin, and the colloidal film is cooled and cooled to obtain the colloidal film of FIG.
As shown in the above, the present applicant has proposed a method for producing sushi rice in which a gelled film b is formed on the surface of rice grains a. (Japanese Patent Publication No. 6-42824)

[0004] Further, by forming a gelling film b of pectin on a plurality of layers (three layers in Fig. 6) on the surface of each rice grain a, the intended purpose can be more reliably achieved. In order to form a plurality of layers of the gelled film b, the above-described shredding process is repeated a plurality of times.

[0005]

However, in order to form the above-mentioned gelled coating on the surface of each rice grain, it is necessary to cool the cooked rice to a required temperature (15 ° to 20 ° C.). During the rotation of the rotating container, the outside air is only blown at the same time as the outside air is blown, so the temperature of the cooked rice is about 95 ° C immediately after cooking, the temperature inside the rotating container is high, and it is difficult to cool down. Cooling temperature required for rice (15
(.Degree.-20.degree. C.).

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a plurality of rotating containers having an opening with an opening / closing lid provided on a peripheral wall thereof, which are rotatably supported by being vertically arranged. In each of the left and right rotating shafts of each rotating container, while blowing cool air into the rotating container from a blowing hole provided on one of the rotating shafts, while forcibly exhausting air from an exhaust hole provided on the other rotating shaft. The vinegared rice was prepared (shari cutting). At this time, the characteristic that the cooling capacity increased as the exhaust power increased was used, and the vinegared rice was prepared in the upper rotating container first. Thereafter, if the rice in the rotary container is transferred to the lower rotary container, the same rotary rice container is used to prepare the same rice varieties as described above, and the rice is sequentially transferred from the upper rotary container to the lower rotary container. The vinegared rice multiple times while transferring By returning Ri, without unreasonable to a cooling temperature required sushi rice, and can be efficiently cooled,
Moreover, it is an object of the present invention to provide an automated food mixing apparatus that can continuously mix vinegared rice and improve efficiency.

[0007]

In order to achieve the above object, a food mixing apparatus according to the present invention comprises a stirring member,
A plurality of rotating containers having an opening with an opening / closing lid on the peripheral wall are provided, and each of the rotating containers is vertically arranged on a frame by a rotating shaft projecting from the center of both left and right side walls so as to be rotatable and side by side. A blow hole and an exhaust hole are provided in the axial direction of the shaft and the other rotating shaft, and the blow hole is communicated with a cool air blower and a cool air supply pipe, and the exhaust hole is connected to an exhaust duct through an exhaust pipe. It is characterized by communicating.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall side view of an embodiment of the present invention, FIG. 2 is an enlarged front view of the embodiment, FIG. 3 is a side view of a rotating container, and FIG. 4 is a longitudinal sectional view of the rotating container. 5 shows an enlarged front view of the cooling conveyor.

1 and 2, reference numeral 1 denotes a frame;
3 is a rotating container, 4 is a cool air supply pipe, 5 is an exhaust pipe,
6 is an exhaust duct, 7 is a sushi rice discharge conveyor, 8 is a conveyor exhaust duct, 9 is a vinegar injection nozzle, 10 is a vinegar injection pump, 11 is a vinegar tank, 12 is a vinegar injection pipe, 13
Denotes a rotary drive mechanism with a speed reducer for the rotary containers 2 and 3, 14 denotes an upper hopper, 15 denotes an intermediate hopper, and 16 denotes a lower hopper.

As shown in FIG. 1, the frame 1 is formed by erecting a vertically long upper frame 1b on one upper side of a horizontally long lower frame 1a. As shown in FIG. 2, the upper hopper 14 for charging rice A, the upper rotating container 2, the intermediate hopper 15, the lower rotating container 3, and the lower hopper 16 are arranged on the same line in order from the upper portion to the lower portion. It is.

As shown in FIGS. 1 and 2, shutter shafts 17 and 18 are horizontally arranged on the right and left sides of an upper hopper 14 of the upper frame 1 b by cylinders 19 and 20 so as to be able to rotate forward and reverse. And each of the shutters 17,
18 and the shutters 21 and 22 are fixed to the upper hopper 1
The lower end opening of 4 is formed to be openable and closable.

As shown in FIGS. 1 to 4, each of the rotary containers 2 and 3 has a short cylindrical shape having a large diameter.
A bar unit 26a composed of a combination of a plurality of bars is disposed as a stirring member 26 for mixing and stirring the vinegared rice, and a part of the peripheral wall 23 is formed. Has an opening 28 with an opening / closing lid 27,27.

At the center of the side walls 24, 25, tubular rotating shafts 29, 30 are symmetrically projected outwardly, and the rotating shafts 29, 30 are, as clearly shown in FIG.
By being supported by bearings 31 fixed to b, the rotating containers 2 and 3 are horizontally supported to be rotatable in the direction around the axis.

Either one of the rotating shafts 29 and 30 described above,
In the illustrated example, as shown in FIG.
Is fixed and meshed with a gear 13b fixed to a drive shaft 13a of a rotary drive mechanism 13 including a drive source and a speed reducer by a motor (not shown), whereby the rotating containers 2 and 3 are rotated.

As shown in FIGS. 1 to 4, the lids 27, 27 have rotating bases 27a, 27a having rotatable base ends rotatably mounted on rotating shafts 29, 30, and the rotating plates 27a, 27a.
a, one end of which is fixed to the rotating containers 2 and 3 and which is disposed so as to be able to expand and contract in the radial direction of the rotating containers 2 and 3;
b, 27b, and cover plates 27c, 27c fixed to the other ends.

The extended portions 24a, 2a extending from the side walls 24, 25 in a direction symmetric to the opening 28 are provided.
The output shafts 34a, 34a of the cylinders 34, 34 whose base ends are rotatably connected to the base 5a with pins 33 and the like are rotatably connected to the rotary plates 27a, 27a by pins (not shown). The opening / closing lids 27, 27 are formed so as to open and close the opening 28 by the expansion and contraction of the output shafts 34a, 34a as shown by the two-dot chain line and the solid line in FIG.

As shown in FIG. 4, the branch pipe 4 a of the cold air supply pipe 4 is inserted through the rotary shaft 29 and the exhaust pipe 5 is inserted through the rotary shaft 30 through the rotary shafts 29 and 30. Ventilation hole 35 and exhaust hole 3 communicating with the inside of 2, 3
6 are formed in the axial direction.

Cool air is blown from a not-shown cooler into the rotary containers 2 and 3 through the cool air supply pipe 4 and the blow holes 35, and is passed through the exhaust holes 36, the exhaust pipe 5 and the exhaust duct 6. The steam and hot air are forcibly exhausted to the outside.

As shown in FIGS. 2 and 4, the branch pipe 12a of the vinegar injection pipe 12 is inserted into the exhaust hole 36, and the vinegar injection nozzle 9 is opened and disposed in the rotary containers 2, 3. The vinegar injection nozzle 9 is connected to the vinegar tank 11 via the branch pipe 12a, the vinegar injection pump 10, and the vinegar injection pipe 12.

As shown in FIGS. 1 and 2, on the lower frame 1a, the sushi rice discharge conveyor 7 is inclined upward and outward with its lower end positioned below the lower hopper 16 described above. It is arranged.

On the above-mentioned sushi rice discharge conveyor 7, the sushi rice B transferred to the lower end of the conveyor belt 7 a of the sushi rice discharge conveyor 7 from the lower rotating container 3 through the lower hopper 16 is loosened. A sushi rice loosening blade 37 for transportation is rotatably supported on a shaft, and a conveyor exhaust duct 8 for exhausting steam and hot air of the sushi rice B is provided.

The vinegar infusion pumps 10 and 10, the sushi rice discharging conveyor 7, and the sushi rice loosening blade 37 are driven to rotate by a drive source such as a motor (not shown).

Further, in the food mixing apparatus of the present invention, the sushi rice B can be further cooled by using the cooling conveyor 38 as shown in FIG. As shown in FIGS. 1 and 5, the cooling conveyor 38 is provided with a mesh conveyor belt 42 made of, for example, a Teflon net or the like, on a driving roller 40 and a driven roller 41 that are pivotally supported at both ends in the length direction of the conveyor frame 39. The cold air is blown up from a cold air supply port 44 provided at the lower portion of the mesh conveyor belt 42 through a cold air supply duct 43 by a not-shown cool air blower, through the mesh conveyor belt 42 and the sushi rice B, and the sushi is fed. Exhaust fan 4 for steam and hot air in rice B
5 is formed so as to be discharged outside through an exhaust port 46 and an exhaust duct 47.

In FIG. 1, 48 indicates a sushi rice discharging conveyor, 49 and 49 in FIGS. 1 and 5 indicate sushi rice leveling blades, and 50 in FIG. 1 indicates a rice cooker.

In the embodiment shown and described above, two rotating containers 2 and 3 are used, but three or more rotating containers can be used.

Since the opening 28 of the upper rotary container 2 is opened, and the opening 28 is turned upward, the shutter 2 is
When the rice cooker A in the upper hopper 14 is thrown into the upper rotating container 2, the opening 28 is closed by the opening / closing lids 27, 27.

Next, while rotating the upper rotating container 2, an appropriate amount of vinegar is injected from the vinegar injection nozzle 9, and
The cool air is blown through the air holes 35 and the exhaust holes 3
6. Steam and hot air in the cooked rice are forcibly discharged to the outside through the exhaust pipe 5 and the exhaust duct 6.

That is, vinegar is poured into cooked rice, and vinegared rice is prepared by mixing and stirring with a stirring bar unit 26a while applying cold air (shari cutting). By making it stronger than the wind power, the cooling capacity is improved. Therefore, the temperature of the rice cake having a temperature of about 95 ° C. immediately after the rice cooking is cooled to about 40 ° C. by the first paper cutting by the upper rotating container 2.

Next, when the upper rotary container 2 is stopped at a position where the opening 28 is directed downward, the opening and closing lids 27 and 27 are opened by the cylinders 34 and 34, and the opening 28 is opened. If the vinegared rice A is put into the lower rotating container 3 via the intermediate hopper 15, the opening 28
Is closed by the open / close lids 27, 27.

Then, a second vinegared rice preparation (shari cutting) is carried out in the lower rotating container 3 in the same manner as in the case of the upper rotating container 2 described above.
If the sushi rice is obtained by cooling to below, the opening portion 28 is opened and the sushi rice B is loosened by the discharge conveyor 7 and the sushi rice loosening blades 37 when the sushi rice is supplied by dropping onto the discharge conveyor 7 through the lower hopper 16. While being discharged in a predetermined direction.

The ingredients used are rice cooked rice and vinegar, and the vinegar is, for example, a gelling agent of one or more of a mixture of pectin, pullulan, locust bean gum, glucomannan, etc. , Rice vinegar, etc.), sugar, mirin and the like.

[0032]

According to the present invention, as described above, the mixing and agitation of ingredients such as vinegar and rice are performed stepwise by a plurality of rotating containers arranged vertically, so that the ingredients are mixed. For example, in sushi rice, pectin etc. is added to rice cooking for the purpose of improving the moisture retention and water retention of rice grains, maintaining the freshness of sushi rice for a long time at low temperature, and improving the taste and gloss. Mixed with mixed vinegar,
When forming a gelling film such as pectin on the surface of rice grains in a plurality of layers, it is necessary to cool the cooked rice to a predetermined temperature, but in this case, it is necessary to mix the vinegared rice (shari cutting) without difficulty. The cooling temperature can be lowered to a cooling temperature (about 15 ° C. to 20 ° C.), and the cooling capacity can be increased by increasing the exhaust power from the cooling air blowing wind of the rotating container, so that cooling can be performed efficiently and in a short time.

Further, by a plurality of rotating containers,
Ingredient mixing and cooling can be continuously and efficiently and automatically performed.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an embodiment of a food mixing device according to the present invention.

FIG. 2 is a front view showing the embodiment.

FIG. 3 is a side view of the rotating container.

FIG. 4 is a longitudinal sectional view of a rotating container.

FIG. 5 is a front view of the cooling conveyor.

FIG. 6 is a cross-sectional view of rice grains having a gelling film formed on a plurality of layers (three layers) on the surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2, 3 Rotating container 4 Cold air supply pipe 5 Exhaust pipe 6 Exhaust duct 23 Peripheral wall 26 Stirrer 27 Opening / closing lid 28 Opening 35 Blow hole 36 Exhaust hole

Claims (1)

[Claims] 1. A plurality of rotating containers having a stirring member therein and an opening with an opening / closing lid provided on a peripheral wall, wherein each of the rotating containers is vertically arranged on a frame by a rotating shaft projecting from the center of both left and right side walls. Along with being rotatably juxtaposed, each has a ventilation hole and an exhaust hole in the axial direction of one rotation shaft and the other rotation shaft,
The food mixing device, wherein the blow hole communicates with a cooler through a cool air supply pipe, and the exhaust hole communicates with an exhaust duct through an exhaust pipe.