JP2003093010A - Packed bean curd and dropping apparatus for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide packed bean curd capable of being taken out without adhering to a container. SOLUTION: A dropping apparatus 10 for packed bean curd is composed of a receiving plate 16 to receive packed bean curd 5 produced by adding a coagulant to soybean milk and packing the resultant product in a container followed by heating the resultant product, a dropping gear 12 for the packed bean curd 5 formed by a receiving plate driving gear 18 to rotate the receiving plate 16, a packed bean curd receiving device 13 formed by a receiving member 26 to receive dropped packed bean curd 5, and a sending device 27 to send the packed bean curd 5 to a next process. Bean curd is taken out without remaining in the container by releasing from the container due to drop impact of the packed bean curd 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filled tofu capable of being taken out without leaving the tofu in a container and a dropping device for the filled tofu.

[0002]

2. Description of the Related Art The manufacturing method of tofu is roughly classified and after solidifying soymilk in a mold, cut tofu that is exposed to water and soymilk mixed with a coagulant are mixed and sealed in a small container. There is a filling tofu that solidifies inside. The latter is more advantageous than the former in terms of storage period and distribution, and in recent years, this filled tofu has become the mainstream.

However, since the filled tofu is solidified in the container, the tofu and the container come into close contact with each other, so that even if the container is turned upside down, a part of the tofu remains in the container and cannot be completely taken out. There is. In order to eliminate this, a large amount of coagulant is used to strongly solidify to cause water separation, and a layer of water is created between the container and tofu, or the coagulation temperature is set higher than usual. Measures such as strongly solidifying by heating for a long time to cause water separation have been implemented. However, according to these methods, it is easy to remove from the container, but since the coagulant is used more than necessary or the coagulation temperature is increased, the flavor and texture deteriorate, and the quality of the filled tofu deteriorates. Is the biggest factor in

Before adding the coagulant, the soy milk is mixed with 1
There is a method (Japanese Patent No. 2936175) in which water is generated during solidification by heating to 8 to 30 ° C. With this method, water separation occurs as a result of the impaired water retention inherent in tofu, and it is considered that the entire tissue structure of tofu loosened. Therefore, the texture of the tofu is not always the original elasticity.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a filled tofu which can be easily and completely taken out from a container without impairing the flavor and texture, and an apparatus for producing the same.

[0006]

[Means for Solving the Problems] Various investigations have been made in order to solve the above-mentioned problems. As a result, soy milk is filled in a container and heated to produce a filled tofu, and then the filled tofu is dropped to leave the tofu in the container. The present invention has been completed based on the finding that tofu can be easily taken out from a container without the need. That is, the invention of the present application is a filling tofu made by adding a coagulant to soy milk, dropping the filled tofu produced by heating after filling the container, as well as adding a coagulating agent to the soy milk and heating after filling the container. A receiving plate for receiving the filled tofu, a dropping device formed by a receiving plate driving device for rotating the receiving plate, a receiving member for receiving the dropped filled tofu, and a delivery device for sending the filled tofu to the next step. A dropping device for filled tofu, which is characterized by comprising a filled tofu receiver.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION First, as a means for producing filled tofu, any ordinary method for producing filled tofu may be used.
For example, as shown in FIG. 1, raw soybeans are soaked in water at 5 to 25 ° C. for 6 to 20 hours, drained, and then put into a grinder with 4 to 15 times the amount of water to be ground. The soybean milk obtained by grinding is heated at 80 to 130 ° C. for 0.1 to 10 minutes and then solid-liquid separated to obtain soy milk. As a method for solid-liquid separation, a screw decanter, a screw press, or a commonly used means such as pressing after filling a cloth bag may be used. In addition, a method in which 4-15 times the amount of water is added to the raw soybeans as they are or without being dehulled and soaked in water, and the mixture is put into a grinder to be ground, and the raw soybeans are heat-treated in the same manner as above You can Furthermore, after soaking the dehulled soybeans in water or hot water for a short time, grinding and heating in the same manner as above,
Soy milk may be obtained by solid-liquid separation.

Next, as shown in FIG. 2, a coagulant is added to the soy milk produced by the above method by a general method. As a method of adding a coagulant to soymilk, for example, after uniformly dispersing the coagulant in soymilk with a stirrer called a static mixer, the concentration of soymilk, that is, the electrical conductivity is measured, depending on the value. A continuous addition method in which the amount of the coagulant added is controlled may be used. Then fill the container, 70-10
Heat at 0 ° C. for 30-60 minutes to obtain filled tofu. Next, a coagulant, which is not particularly limited, may be a coagulant that is usually used. For example, if natural bittern, magnesium chloride, calcium chloride, etc. are used, the concentration may be within the range usually used, for example, 20 to 80% (W
/ W) solution. Also, glucono delta lactone can be used. Thus, as shown in FIG. 3, the container 3 including the container body 1 and the lid 2 that covers the container body 1.
Tofu 4, that is, filled tofu 5 is produced.

In the present invention, by dropping the filled tofu, the tofu is impacted and the contact surface between the inner wall surface of the container and the tofu is separated to improve the dischargeability from the container. If the height is too high, the impact will be so strong that the tofu itself will be broken or the container will be deformed, resulting in no commercial value. On the other hand, if the drop height is too low, the impact is weak and the contact surface between the inner wall surface of the container and the tofu does not peel off,
The purpose of taking out tofu without leaving it in the container cannot be achieved. The appropriate height is related to the weight of the filled tofu, the shape of the container and the thickness of the members constituting the container. For example, the shape of the container is a rectangular parallelepiped or a cube (vertical = 50 to 150 mm, horizontal = 50 to 150 mm,
Depth = 10-150 mm), container material (polypropylene, polyethylene, or polystyrene), filled tofu weight 50-500 g, height 10-100 cm
When the filled tofu is opened and the tofu is taken out of the container by dropping from a certain degree, the whole amount can be taken out as it is without leaving the tofu in the container.

The present invention will be described below with reference to the accompanying drawings.
First, FIG. 4 shows a dropping device 10 for filling tofu according to the present invention. The dropping device 10 for the filled tofu mainly comprises a carry-in conveyor 11 for carrying the filled tofu 5 into the system, a dropping device 12 for receiving the filled tofu 5 from the conveyor 11 and dropping the tofu 5.
Filled tofu receiver 1 that receives the dropped tofu 5
3, a delivery conveyor 14 that sends the filled tofu 5 that has been dropped and has improved dischargeability from the container 3 to the next step, and a controller 15 that controls the above-described devices.

The dropping device 12 has a flat plate shape and is filled with tofu 5
A receiving plate 16 on which is mounted, a rotating shaft 17 parallel to the flow of the filled tofu 5 and fixed to an end of the receiving plate 16, for example, the lower surface on the front side in FIG. 4, and the rotating shaft 17. The receiving plate driving device 18 is connected to rotate the receiving plate 16. An electric motor can be used as the backing plate drive device 18. The upper surface 19 of the receiving plate 16 is installed so as to form the same plane as the upper surface 20 of the carry-in conveyor 11, and the filled tofu 5 is supplied to the carry-in conveyor 1
1 and is sent to the receiving plate 16 by inertial force.
At this time, the filled tofu 5 comes into contact with the filled tofu stopping plate 21 which is erected at the downstream end of the receiving plate 16 orthogonally to the flow thereof, and is stopped at a predetermined position on the plate 16.

When the filling tofu 5 is sent to the receiving plate 16,
The sensor 22 detects that the filled tofu 5 has reached the specified position, and a signal is transmitted to the controller 15. Then, a command is transmitted to the backing plate drive device 18, and the device 18
Rotates the rotating shaft 17 by 90 degrees, and as shown in FIG.
Becomes vertical, and the filled tofu 5 falls. Then, in response to a command from the controller 15, the receiving plate 16 is immediately returned to the horizontal state as shown in FIG. 9 to prepare to receive the next filled tofu 5. Since the filled tofu 5 is intermittently sent from the carry-in conveyor 11, if the transport speed of the carry-in conveyor 11 is set to a certain fixed value or less, the filled tofu 5 is filled before the receiving plate 16 returns as shown in FIG. Are not sent to the backing plate 16.

As in the embodiment shown in FIG. 4, the receiving plate 16 is
In the case of one sheet, when the filled tofu 5 is placed on the plate 16, the filled tofu 5 is pushed out from the tip end portion 23 of the receiving plate 16 as shown in FIG. As shown in FIGS. 8 and 9, it falls while maintaining the initial state. As a result, when the filled tofu 5 falls into the filled tofu receiver 13, the entire lower surface of the container 3 of the tofu 5 is simultaneously landed, so that the impact force is evenly transmitted to the entire filled tofu 5 and the deformation of the container 3 is prevented. To be done.

Next, the filling tofu receiver 13 receives the falling filling tofu 5 and the receiving member 26.
It is composed of a sending machine 27 that sends the filled tofu 5 that has dropped onto the sending conveyor 14, and the sending machine 27 is formed by an air cylinder 28 and a pressing plate 30 that is installed at the tip of the cylinder shaft 29 and has a flat plate shape. ing. In FIG. 6, the receiving member 26 includes a plurality of pipe members 24 and a pipe holding frame 25 that holds the members 24. The pipe holding frame 25 has a U-shaped cross section and is paired with the pipe member 24. Pipe holding member 31
And a connecting frame 32 for connecting the members 31. The dropped tofu 5 drops onto the pipe member 24 of the receiving member 26.

The filling tofu 5 dropped on the receiving member 26, that is, the pipe member 24 is detected by the sensor 33, and the signal thereof is sent to the controller 15, and the controller 15 is sent.
From this, a command is transmitted to the sending machine 27 to operate the air cylinder 28, and the filled tofu 5 is sent to the sending conveyor 14 as shown in FIGS. 10 and 11 and transferred to the next step.
In the filling tofu receiver 13, by receiving the falling of the filling tofu 5 with a large number of pipe members 24 as in the present embodiment, the impact of the falling is transmitted to the entire container 3 without being concentrated on a part of the container 3, and the efficiency is improved. The contact surface between the inner wall surface of the container and the tofu is peeled off, and damage to the container is prevented. In this case, if a gap 34 is formed between the pipe member 24 and the pipe holding member 31, as shown in FIG. 8 or FIG. 9, the above effect is further improved.

FIG. 12 shows another embodiment for carrying the filled tofu 5 into the system. This embodiment is an example in which an air cylinder 38 and a filling tofu stop device 41 including a stop plate 40 installed at the tip of a shaft 39 of the air cylinder 38 are provided at the most downstream portion of the carry-in conveyor 11. The air cylinder 38 is controlled by the controller 15 in conjunction with the receiving plate driving device 18, and only when the receiving plate 16 is in the horizontal position, the stop plate 40 moves upward to receive the filled tofu 5 and drop the filled tofu 5. Device 12
To prevent falling without passing through.

13 to 15 show another embodiment of the receiving plate driving device 18. This embodiment is an example in which the receiving plate 16 is configured to be movable back and forth in the horizontal direction and the filled tofu 5 placed on the plate 16 is dropped. In the present embodiment, the dropping device 12 for the filled tofu 5 includes the receiving plate 16 and the receiving plate driving device 1.
8 and a stop member 42 having a U-shape, which is installed in the left end portion of the receiving plate 16 in FIG.
It is composed of. The receiving plate driving device 18 is composed of an air cylinder 43, a U-shaped guide member 45 installed at the tip of a shaft 44 of the air cylinder 43, and a bearing 46 that inserts the guide member 45 and supports the guide member 45 so as to move back and forth. The leading end of the stop member 42 is fixed to the side surface of the receiving plate 16. As described above, the present embodiment is configured so that the receiving plate 16 can be moved back and forth by the operation of the air cylinder 43, and the filled tofu 5 placed on the receiving plate 16 is moved to the plate 1.
The retracting member 6 hits the stop member 44 and falls as it is.

FIG. 16 shows a pair of the receiving plate 16 and the receiving plate drive device 18 shown in FIG. 4 in a pair of 16A, 16B, 18 respectively.
The example which installed A and 18B is shown. By operating the receiving plate drive devices 18A and 18B at the same time as in the present embodiment, the falling state of the filled tofu 5 can be more reliably dropped horizontally, that is, as shown in FIG.

FIG. 17 shows a pair of the receiving plate 16 and the receiving plate drive device 18 shown in FIG. 13 in a pair of 16A, 16B, 18 respectively.
The example which installed A and 18B is shown. According to this embodiment, the same effect as that of the embodiment of FIG. 16 can be obtained.

[0020]

[Example] 1. Implementation conditions (1) Dropping device for filled tofu: Device shown in Fig. 4 (2) Filled tofu Container material: polypropylene / polyethylene Container thickness: 0.05 to 0.55 mm Weight: 375 g (3) Filled tofu: Produced by the method shown in FIGS. 1 and 2. (3) Drop height: 50 cm 2. As a result of implementation, the tofu 2 was taken out by removing the lid 2 of the container 3 and turning the container 3 upside down.

[0021]

EFFECT OF THE INVENTION The present invention is configured as described above, and is a simple means of dropping the filled tofu 5, and the whole amount of the tofu is filled from the container without adhering the tofu to the container. You can take it out as it is.

[Brief description of drawings]

[Figure 1] Process diagram of soymilk production

[Fig. 2] Process diagram of filling tofu production

[Fig. 3] Perspective view of filled tofu

FIG. 4 is a front view of a filling tofu dropping device according to the present invention.

5 is a plan view of FIG.

6 is a view taken along line 6-6 of FIG.

FIG. 7 is a 7-7 view of FIG.

FIG. 8 is a view showing a falling state of the filled tofu, which is taken along line 8-8 of FIG.
View

FIG. 9 is a view showing a falling state of the filled tofu, which is taken along line 8-8 of FIG.
View

FIG. 10 is a view showing a state in which filled tofu is delivered from a filled tofu receiver.

FIG. 11 is a diagram showing a state where the filled tofu is delivered from the filled tofu receiver.

FIG. 12: Another embodiment for supplying filled tofu into the system

FIG. 13 is a diagram of another embodiment of the receiving plate drive device.

14 is a right side view of FIG.

15 is a view taken along line 15-15 of FIG.

FIG. 16 is a diagram of another embodiment of the receiving plate drive device.

FIG. 17 is a diagram of another embodiment of the receiving plate drive device.

[Explanation of symbols]

3 containers 4 tofu 5 Filled tofu 10 Dropping device for filling tofu 11 Carry-in conveyor 12 Dropping device 13 Filled tofu receiver 14 Delivery conveyor 15 Controller 16 Support plate 17 rotation axis 18 Catch plate drive 22 sensors 25 receiver frame 26 Receiving member 27 sending machine 28 cylinders 33 sensors 41 Stop device 45 Guide member

Claims (2)

[Claims] 1. A filled tofu prepared by adding a coagulant to soy milk, filling the container, and then heating to drop the filled tofu. 2. A receiving plate for receiving a filled tofu produced by adding a coagulant to soy milk, filling it in a container and then heating it, a dropping device formed by a receiving plate driving device for rotating the receiving plate, and dropping. A dropping device for filled tofu, which comprises a receiving member for receiving the filled tofu and a filled tofu receiver formed by a sending machine for sending the filled tofu to the next step.