JPS60184377A - Method for freezing boiled granular food and apparatus therefor - Google Patents

Abstract

PURPOSE:To obtain a frozen packaged boiled granula food of good quality, by repeating the steps of loosening a boiled granular food uniformly on a conveyor, pressing and extending the food, quickly freezing the extended food, and weighing and packaging the resultant food in a frozen state. CONSTITUTION:A precooked granular food 7 seasoned with a seasoning, e.g. rice, is placed on a charging side of a belt conveyor 3, led to a freezing device 1, loosened, lightly pressed, extended and uniformed with a loosening, pressing and extending device 20 at the position of the first freezing hood 5 and frozen to about -25--30 deg.C with cold from the freezing hood 5, and further loosened, pressed and extended at the position of the second freezing hood 51, and frozen. The above-mentioned steps are repeated at the positions of the third and fourth freezing hoods 52 and 53, and the food 7 is then transferred to a weighing and packaging device 10, weighed and packaged to afford the aimed frozen packaged boiled granular food.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method and apparatus for freezing cooked granular foods having stickiness such as cooked rice, boiled beans, etc.

[Prior art and its problems]

Conventionally, the processing methods for obtaining frozen packages of such sticky granular foods are as follows: 1. Boiling the raw food; 2. Adding seasoning to the boiled granular food, if necessary.

Mix food oil, etc. and season it. ■ Spread it into a temporary mold (container). ■ Leave it in the refrigerator at ±0℃ overnight (12 hours) and break up the lumpy food by hand when it is in the state that is easiest to loosen. Loosen, ■ Place in a container and freeze (2 to 3 hours) or pass through a tunnel freezer to freeze, ■ Remove from the freezer, weigh, and bag.

This process involved a lot of manual labor, such as ■ arranging the packaged items on a container and passing them through a Betunnel freezer to freeze them, and ■ loosening the packaged items in bags and then packing them into boxes.

This conventional process, which mainly involves manual labor, is labor-intensive and unreliable.
In order to spread it out and freeze it, it freezes in a partially crushed state, so it sticks together and becomes a lump.In the final process, the wrapped product is patted together with the palms of both hands and then loosened by pressing with your fingers. It needed to be taken apart.

As a result, the grains often break, and the broken grains clump together, resulting in a bad taste when thawed and used.

There was a problem in that the food product lost its original granular shape of the raw materials, both in terms of external appearance and loss of commercial value.

[Purpose of the invention]

An object of the present invention is to provide a processing method and apparatus for efficiently obtaining high-quality frozen foods in which the original form of boiled granular foods such as grains is maintained.

[Structure of the invention]

The above objective is achieved by repeating the process of mechanically kneading and lightly pressing the boiled and pre-seasoned granular food on a conveyor, and then weighing and packaging the loose granular food in its frozen state. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the apparatus of the present invention will be explained with reference to the attached drawings.

FIG. 1 is a diagram showing an outline of the processing device of the present invention, and FIG.
Figures 3 and 3 are a side view and a plan view showing a part of the loosening presser foot stretching device provided at the position of each freezing box, and particularly take the loosening presser foot stretching device at the final position as an example.

Referring to Fig. 1, the entire device is covered with a casing 1 made of stainless steel, for example, in order to prevent the dispersion of cold air and maintain internal cleanliness. A door 2 is provided for this purpose. 3
is a belt conveyor driven by a motor 4, and the charging side is provided with a casing 1 for convenient loading of food.
A device 10 for automatically weighing and packaging processed frozen foods is movably installed at the other end of the container. Reference numeral 5 denotes a refrigerated hood that is installed to cover the heat converter, and cold air from the cold air source is transferred over the belt by a cold air supply fan 6 installed in a duct leading to a cold air source (not shown). The granular food 7 is sprayed onto the granular food 7 to quickly freeze it. A plurality of frozen foods 5.51, 52.53 (four units are shown) are arranged in series in the direction of movement of the heald conveyor 3 so as to cover it.

A loosening presser stretching device 20 is provided on the fixed frame 8 directly below the frozen hood 5. FIG. 2 and FIG. 3 show details of the loosening presser extension device 20 installed at the position of the last frozen hood 53.

The presser and spreader 20 includes a comb-like blade 22 for kneading the granular food 7 placed on the belt conveyor 3 and conveyed, and a comb-like blade 22 for kneading the granular food 7 that has been kneaded and spreading it out to make it uniform. The presser foot extension roller 23 is also provided. These comb-like blades 22 and presser foot extension rollers 2
3 is attached to a moving frame 28 equipped with a cam mechanism 27 that is rotated by a drive chain belt 26 that moves in response to the driving force of a transmission belt 29 from a drive motor 25. The comb-like blade 22 is inclined in the direction of movement, and the presser foot extension roller 23 is mounted so as to be adjustable in the vertical direction.

The moving frame 28 performs the movement shown by the arrow in FIG. 2 by rotation transmission from the drive motor 25. The moving frame 28 is set to move at a speed faster than the moving speed of the belt conveyor 3.
The granular food on top is loosened from behind in the moving direction and lightly pushed out.

24 is a blade for peeling off processed granular food when it adheres to the surface of the presser extension roller 23, and 21 is a blade attached to the inner side from both ends of the belt to prevent the pressed granular food from falling off the belt. The side plate is shown.

In carrying out the treatment method of the present invention, boil in advance,
Seasoning 9 Particulate food such as cooked rice seasoned with food oil and mixed with various foodstuffs is placed on the charging side of the belt conveyor 3. As the belt conveyor 3 moves, the food, which has been loosened and lightly pressed and homogenized by the lifting press and stretching device 20 at the position of the first frozen food 5, receives cold air from the food 5 and reaches a temperature of -25°C.
Frozen to ~-30°C. The granular food 7 frozen in the first stage is pressed and stretched again at the second frozen food 51 and frozen. By repeating this process at the third and fourth frozen food positions 52 and 53, even if the processed food is viscous and difficult to homogenize, the granular food 7 that has been in the form of lumps gradually becomes separated into individual pieces. The frozen product is loosened into granules, and there are no lumps near the exit at the other end, and each granule is separated to obtain a uniformly mixed frozen product.

Next, the frozen granular food is transferred from the belt conveyor 3 to the bucket conveyor 11 of the weighing and packaging machine, passes through the chute 12, and is packed into bags by a predetermined amount measured by the scale 13.

[Integrated effect]

According to the present invention, it is now possible to perform most of the frozen packaging work, which was previously done manually, by mechanical means, and it is also possible to produce high-quality frozen foods whose grains are completely separated after thawing. This means that it can be supplied to users.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an outline of the processing device of the present invention, and FIG.
Figures 3 and 3 are a side view and a plan view showing a portion of the loosening press and stretching device provided at the position of each freezer box. 1: Casing 2: Maintenance door 3: Belt conveyor 4: Belt conveyor drive motor 5: Frozen food 6: Fan 7: Granular food 8: Fixed frame 10: Weighing and packaging device 11: Bucket conveyor 12: Shooter 13: Weighing device 20: Presser foot extension device 21: Side plate 22: Comb-like blade 23; Presser foot extension roller 24 blade 25: Drive motor 26: Drive chain helmet 27: Cam mechanism 28: Moving frame 29: Transmission belt Patent applicant Tsuneo Hase Person Masu Tebori (and 1 other person) Tokukai Sho GO-184377 (4)

Claims (1)

[Scope of Claims] 1. Freezing of boiled granular food, characterized by repeating the steps of uniformly loosening the boiled granular food on a container, spreading it with a press, and rapidly freezing the food, and then weighing and packaging the food in the frozen state. Processing method. 2. A strip conveyor having a receiving port for boiled granular food at one end and a take-out port at the other end, and a strip conveyor that is continuously provided over the strip conveyor and has a stripping board and a roll for stretching the presser foot. 1. A freezing processing apparatus for boiled granular food, comprising: a plurality of freezing boxes, and a carry-out weighing device provided at an outlet of the strip conveyor.