JPH0391452A - Soybean mild production machine for soybean-curd - Google Patents

Abstract

PURPOSE:To provide the title machine intended to serve a natural food, so designed that when it is detected that a material ground at the grinding- separating section is heated close to the boiling point, a chilled air steam is sent to said section to cool the surface of the foams produced, thus defoaming can be accomplished without the need for any antifoaming agent. CONSTITUTION:Raw soybean and water are put into a soybean milk-separating cage 17 followed by grinding with a rotary cutter 16. In the cage 17 heated by a heater 37 and holding the resultant mashed soybean, mashed soybean soup is separated. The steam generated from the mashed soybean soup heated is blown out via a blowout hole 43, and when it is detected by a thermosensor 44 installed against the blowout hole 43 that the temperature of the steam come close to the boiling point, a blower 38 is driven. And a chilled air stream is blown on the mashed soybean soup in the cage 17 through ducts 40, 42, effecting temperature fall on the surface of the soup and suppressing foam generation. This eliminates the need for incorporating the soup with an antifoaming agent, leading to obtain an additive-free natural food.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application Generally, tofu is produced through a first step of soaking soybeans in water, a second step of crushing the soaked soybeans, and a third step of boiling the crushed soybeans. It is manufactured by sequentially performing a fourth step of separating soy milk and okara, a fifth step of coagulating the soy milk, and a sixth step of forming the bottom shape. The present invention relates to a soymilk manufacturing machine for tofu that automatically and continuously performs the second to fourth steps among these steps using one component device.

2. Description of the Related Art As a device for making soy milk for tofu, a soy milk making machine for tofu as shown in FIG. 3 has been devised. In Figure 3, 1
is the lower body with electric motor 2 inside, 3 is the lower body l
An upper body is placed on the upper body so as to be separable, and a mixer top 5 having a dewatering hole 4 is provided inside the upper body, and the mixer top 5 is rotatably supported by a bearing 6 at the center of the inner bottom of the mixer top 5. A rotary shaft 7 is removably fitted to a rotary electric shaft 8 of the electric motor 2 at its lower end. Further, a mixer cutter 9 is attached to the upper end of the rotating shaft 7. The relationship between this rotating shaft 7 and the mixer tip 5 is as follows.
A cylindrical portion 10 surrounding the outer periphery of the rotating shaft 7 is formed in a part of the cylindrical portion 10, and a coil spring 11 that provides resistance in one rotation direction is provided in the cylindrical portion 10, so that when the rotating shaft 7 rotates at high speed, the mixer tip 5 The rotary shaft 7 is not driven, but is driven to rotate by the appropriate resistance of the contact member such as the coil spring 11 when the rotating shaft 7 is rotating at low speed in the reverse rotation direction. In addition, a soy milk outlet 12 is provided on the lower side of the upper body 3, a lid 13 is provided on the top, and a heater 14 is provided on the lid 13 for heating the contents of the mixer top 5. This process was performed by a timer 15.

Problems to be Solved by the Invention In the conventional soybean milk manufacturing machine for tofu having the above configuration, soybeans and a certain amount of water are put into the mixer top 5, the lid 13 is covered, and the timer 1 is turned on.
By setting 5, the mixer cutter 9 rotates at high speed and starts crushing soybeans.

Next, when the grinding has finished for a certain period of time, the electric motor 2 is stopped, and the heater 14 is energized to boil the ground contents. Next, when the heating is finished, the heater 14 is de-energized, the motor 2 begins to rotate weakly in reverse, and the rotating shaft 7 and mixer tip 5 begin to rotate in the same direction due to the action of the coil spring 11.
The mixer cup 5 acts as a separation basket, and the soybean milk that has been boiled and dissolved in water is discharged from the dehydration hole, and the dehydrated and separated okara remains in the mixer cup 5.

In the above process, when the crushed contents are boiled, when the temperature of the contents approaches the boiling point, bubbles are suddenly generated and the contents boil over from the mixer tip 5. In order to prevent this problem from occurring, when adding soybeans and water to mixer tip 5, it is necessary to add a small amount of vegetable oil oxide called an antifoaming agent or calcium carbonate. However, amidst the recent boom in natural foods, there is strong resistance to adding additives in addition to soybean-water salt, and a soybean milk production machine for tofu that does not require an antifoaming agent has been long awaited.

The present invention has solved the above problems, and aims to provide a soymilk manufacturing machine for tofu that does not require an antifoaming agent.

Means for Solving the Problems In order to achieve the above object, a crushing/separating section consisting of a rotary cutter and a soybean milk separation basket, a heating section having a heater for heating the material crushed in the crushing/separating section, and a crushing/separating section are provided. A power unit such as a motor that rotationally drives the separation unit, a detection unit that detects when the pulverized material heated in the pulverization/separation unit has reached a boiling point, and sends cold air to the pulverization/separation unit. This is a soymilk manufacturing machine for tofu, which comprises a blowing section and a soymilk container that receives centrifuged soymilk.

Function According to the means of the present invention, when the crushed contents are boiled, when the temperature of the contents approaches the boiling point, the detection section detects this and blows cold air from the blowing section to the crushing/separation section. By doing so, the surface of the foam generated from the contents can be cooled and defoamed, and tofu can be made as a natural food without additives without using an antifoaming agent.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 and 2, reference numeral 16 denotes a rotary cutter for crushing raw soybeans, which is installed outside the bottom of a cylindrical soybean milk separating basket 17, and has a cutter shaft 20 attached to a hollow shaft 19 having a flange portion 18.
- Pivotally supported via a bearing 21 and a shaft seal 22. A filter cylinder 23 having a large number of small holes that is removably fitted is provided on the inner surface of the soybean milk separating basket 17, and these filter cylinders 23 form a crushing/separating section. A small coupling 24 is provided at the lower end of the cutter shaft 20, which is restrained in the rotational direction and detachable upward, and is meshed and fitted with the other coupling 27 at the upper end of a shaft 26 of a power unit such as a motor 25. ing. The lower end of the hollow shaft 19 having a flange portion 18 is also restrained in the rotational direction, and one side 28 of a large coupling that can be freely attached and detached is provided upward, and is rotatably supported by the motor shaft 26 of the motor 25 as shown in the figure. It meshes and fits with the other large coupling 30 above the motor hollow shaft 29. 31 is a roller clutch provided in the motor hollow shaft 29, which rotates idly with respect to the motor hollow shaft 29 when the motor shaft 26 rotates clockwise when viewed from above, and locks it when the motor shaft 26 rotates counterclockwise. ing. 32 is a spring clutch, which connects motor shaft 2.
When 6 rotates to the right when viewed from above, the motor hollow shaft 29 is restrained by the spring clutch 32, and when it rotates to the left, it is in an idling state. 33 is a bearing between the motor hollow shaft 29 and the motor shaft 26. Therefore, if the motor 25 rotates to the right when viewed from above, the small couplings 24 and 27
Only the rotary cutter 16 rotates to crush the raw soybeans. In this case, the motor hollow shaft 29, the hollow shaft 19 having the flange portion 18, and the soy milk separating basket 17 are restrained in the rotation direction by the spring clutch 32, and the soy milk separating basket 1
7 is prevented from rotating together. Since the rotation of the motor 25 is restricted by the roller clutch 31, the flange portion 1
8 and the soybean milk separating basket 17 rotate together at low speed, and the fruit juice in the soymilk separating basket 17 is centrifugally dehydrated. In this case, the motor hollow shaft 29, the hollow shaft 19 having the flange portion 18, and the soybean milk separating basket 17 can be rotated without being restrained by the spring clutch 32. Soy milk separation basket 17
A gutter-shaped soybean milk channel 34 having an opening below the upper end of the soybean milk separating basket 17 is provided concentrically on the outer periphery of the soybean milk separating basket 17 so as to have an inclined bottom surface. Also, the soy milk flow path 34
A soy milk outlet 35 is provided at the lowest end of the soy milk outlet 35, and a soy milk container 3 that receives centrifugally dehydrated soy milk is further below the soy milk outlet 35.
6 is provided. Further, a heating section including a heater 37 and the like is provided near the outside of the bottom of the soybean milk separating basket 17 to heat the soybean milk separating basket 17. Reference numeral 38 denotes a blower section that sends cold air to the crushing/separating section, and sends cold air to the crushing/separating section from an air passage 40 in the main body 39 through an air passage 42 provided in the main body M41. 43 is a steam outlet, and a temperature sensor 44 such as a thermistor is provided on the side of the main body 39 facing the steam outlet 43 to detect boiling of fruit juice by steam. 45 is a reflector that reflects the radiant heat of the heater 37; 46 is the grinding time of raw soybeans; and the heater 37
This controller controls the heating time, boiling detection, and centrifugal dehydration time of the soy milk separation basket (7).

Next, the operation will be explained. When raw soybeans and water approximately 5 to 6 times the weight of the raw soybeans are put into the soy milk separating basket 17 and the controller 46 is turned on, the motor 25 rotates clockwise as seen from above, and the soy milk separating basket 17 is heated. The raw soybeans are crushed for about 4 to 5 minutes by a rotary cutter 16 rotating at high speed.

When the crushing is finished, the heater 37 is energized, and the crushed raw soybean soup (soybean juice) is heated in the soybean milk separation basket 17, so that the soybean protein in the raw soybean is extracted and mixed with fruit juice, which is a mixed juice of soymilk and okara. Become. When the fruit juice begins to boil, the amount of steam increases rapidly, and the liquid level begins to rise due to bubbles generated from inside the juice. At this time, the temperature of the temperature sensor 44 rises rapidly due to the steam. Boiling of the fruit juice can be detected by detecting the inflection temperature of the temperature sensor 44 or by detecting the absolute temperature of the temperature sensor 44,
The blowing unit 38 is energized by the boiling detection signal, and the cold air passes through the air channels 40 and 42 and is blown onto the fruit juice in the soy milk separation basket 17, thereby lowering the temperature of the surface of the fruit juice and suppressing the generation of bubbles, thereby preventing boiling over. There isn't. Then, after detecting boiling, the power supply to the heater 37 is stopped by about 3 to 4 minutes. When boiling is finished, the motor 25 rotates to the left when viewed from above, and the soy milk separation basket 17 rotates at low speed for about 30 seconds to 1 minute, and the juice in the soy milk separation basket 17 is filtered through the filter tube 23 having a large number of small holes. , separated into soy milk and okara.

After this soymilk is discharged from the soymilk separating basket 17, it is led to a soymilk container 36 via a soymilk channel 34 and a soymilk outlet 35. On the other hand, the okara remains in the filter cylinder 23.

In this embodiment, a case is shown in which the blower unit 38 is driven after boiling is detected, but the heater 37
It is also possible to start blowing air at the same time as the power is turned on. In addition, although the case where the blowing section 38 is provided separately is shown, a blowing fan is provided on the shaft of the crushing/separating motor 25 on the opposite side to the crushing/separating section, and the blowing fan is arranged so that the blowing fan is provided when the motor 25 for crushing/separating rotates clockwise when viewed from above. The defoaming effect can also be enhanced by blowing cold air while stirring the fruit juice.

Effects of the Invention As described above, the present invention provides simple means such as blowing cold air onto the surface of the fruit juice while it is being heated.
There is no need to add vegetable oil oxides, which are known as antifoaming agents, or calcium carbonate, and soymilk for tofu can be made from only soybeans and water, making it a natural food with no additives.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing a soybean milk manufacturing machine for tofu according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram of the same embodiment,
FIG. 3 is a longitudinal sectional view showing a conventional soybean milk manufacturing machine for tofu. 16... Rotating cutter, 17... Separation basket, 19...
・Hollow shaft, 23...filter tube, 25...motor,
31... Roller clutch, 32... Spring clutch, 34... Soy milk flow path, 35... Soy milk outlet, 3
6... Soy milk container, 37... Heater, 38... Air blower, 39... Main body, 40, 42... Air path, 41...
Body lid, 43... Steam outlet, 44... Temperature sensor, 46... Controller.

Claims (1)

[Claims] A crushing/separating section consisting of a rotary cutter and a soybean milk separating basket, a heating section having a heater that heats the material crushed in the crushing/separating section, a power section such as a motor that rotationally drives the crushing/separating section, and the crushing/separating section. - A soymilk manufacturing machine for tofu that consists of a blower unit that sends cold air to the separation unit and a soymilk container that receives the centrifuged soymilk.