JPH064717Y2 - Food heating equipment - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention relates to energization of food materials such as fish surimi when producing food such as fish paste surimi products represented by Kamaboko and other various paste products. The present invention relates to a device for heating food materials by Joule heat generation.

2. Description of the Related Art In the process of manufacturing paste products such as kamaboko, it is common practice to knead paste such as fish meat into a predetermined shape and then heat it. As one of the heating means in this case, recently, it has been attempted to use a heating device that utilizes Joule heat accompanying energization.

In a heating device using Joule heat, it is necessary to bring a pair of electrodes into contact with a molded food material such as fish meat surimi, and to pass an electric current from the electrodes into the food material, but the electrode is directly fed to the food material. When pressed against, there is a problem that the electrode surface is soiled due to the food material itself or the salt content contained therein, the electrode surface is corroded or oxidized, and the food material is also soiled. Therefore, it is considered to interpose a water-permeable film such as cellophane between the food material and the electrode, and in this case, if the water-permeable film is preliminarily shaken in water to be moistened, the film is removed from the electrode. It is possible to energize the food material through the, and when the food material itself contains a large amount of water, the water content of the food material wets the water-permeable film, and the electrode causes the film to pass through the film to the food material. Can be energized. And if the water-permeable film is interposed between the electrode and the food material in this way, the electrode does not come into direct contact with the food material, so that the stain due to the food material is prevented from adhering to the electrode surface. Corrosion and oxidation can be prevented, and conversely, food material can be prevented from becoming dirty.

By the way, as a food material heating device by Joule heat generation in which a water-permeable film is interposed between an electrode and a food material as described above, the present inventors have already disclosed in JP-A-3-103.
No. 6 in 155 (Japanese Patent Application No. 1-314340)
A device as schematically shown in the figure is proposed.

That is, in FIG. 6, the food material 1 such as a plate-shaped kamaboko is intermittently conveyed in a direction perpendicular to the paper surface of FIG. 6 while being placed on an appropriate conveying means 2 such as a tray or a belt conveyor. A pair of electrodes 3A, 3B are arranged opposite to each other on both sides in the horizontal direction of the food material 1 on the conveying means 2, and the electrodes 3A, 3B drive the cylinder back and forth, for example. The mechanisms 4A and 4B are configured to be moved in directions toward and away from each other. Further, between the food material 1 and the left and right electrodes 3A, 3B, strip-shaped long water-permeable films 5A, 5B made of cellophane or the like are arranged in a vertically movable state. The water-permeable films 5A and 5B are electrodes 3A and 3B.
Delivery rolls 6A and 6B arranged at a position lower than
The roll 8A is pulled out from the container, passes through the water tanks 7A, 7B for wetting, and then reaches a position between the electrodes 3A, 3B and the food material 1 and is arranged above the electrodes 3A, 3B. , 8B. Here, if the electrodes 3A and 3B are moved forward as shown by the phantom lines in FIG. 6 with the running of the water-permeable films 5A and 5B stopped, the water-permeable films 5 will be formed on both left and right sides of the food material 1.
The electrodes 3A and 3B are pressed against each other with A and 5B interposed, and an electric current flows from the electrodes 3A and 3B into the food material 1 through the water-permeable films 5A and 5B to heat them by energization. After the heating is completed, the electrodes 3A and 3B are retracted, and then the winding rolls 8A and 8B are rotated by a predetermined rotation number or a rotation angle, whereby the water-permeable films 5A and 5B run upward by a predetermined distance, The unused portions of the water permeable films 5A and 5B are positioned at the portions corresponding to the electrodes 3A and 3B. Therefore, when the next new food material is positioned between the electrodes by the transport means 2 and the new food material is electrically heated, the unused new portion of the water-permeable film is the electrode and the food material. You will be caught in between. That is, each time the electric heating is performed once, an unused portion of the water-permeable film that is not soiled is used, and even if the water-permeable film is soiled by contact with food materials, the soil It is possible to sufficiently prevent the occurrence of a situation in which the film is accumulated and does not adversely affect the next energization heating, and the dirt of the film adheres to the electrode to corrode or oxidize the electrode surface.

Problems to be Solved by the Invention As described above, the food material heating device by electric heating shown in FIG. 6 has excellent advantages, but the present inventors have conducted experiments and studies for its practical application. Repeatedly, the following problems were found.

That is, the water-permeable films 5A, 5B are wound by the upper winding rolls 8A, 8B, but the winding rolls 8A, 8B
There is a limit to the amount of winding (winding length) by 8B, and when continuously operating for a long time, the winding rolls 8A and 8B that have become full at regular time intervals are removed to create a new empty space. Must be replaced with another take-up roll. However, this winding roll replacement work takes time and effort unexpectedly,
Therefore, there is a problem that the operation stop time becomes long and the productivity decreases.

Further, the water-permeable films 5A and 5B typified by cellophane are generally thin and have low strength.
If the tension due to the winding force of A and 8B fluctuates abruptly, the water permeable films 5A and 5B may be broken in the middle. That is, the take-up rolls 8A and 8B need to be intermittently rotated as is clear from the above description, but especially when the rotation starts, a sudden tension is applied to the moisture permeable films 8A and 8B to break the water permeable film. There is a strong risk of doing it. If the film breaks in this way, the operation has to be interrupted in order to rebuild the new water-permeable film, and in that case, the productivity is significantly reduced.

This invention was made against the background of the following circumstances. By improving the food material heating device as shown in FIG. 6,
This makes it possible to replace the take-up roll extremely easily and easily, and prevents sudden tension from being applied to the water-permeable film even at the start of winding the water-permeable film, thus preventing the occurrence of breakage. It is intended to provide a device adapted to obtain.

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 arranges a food material having conductivity between a pair of electrodes approaching and separating each other, and the food. A water-permeable film is placed between the material and each electrode, which is drawn from the lower paying roll and wound by the upper take-up roll,
In the food heating device, the food material is sandwiched from both sides by the pair of electrodes with the water-permeable film in the middle, and the food material is heated by electric heating, wherein the respective winding rolls are parallel to each other. And, on the upper surface between the pair of support rolls arranged in close proximity to each other horizontally, it is placed in a free state so as to be parallel to the pair of support rolls, and the pair of support rolls is It is characterized in that a rotary drive mechanism for driving them to rotate in the same direction is connected.

Further, the invention according to claim 2 is the food material heating device according to claim 1, wherein the take-up roll is formed into a hollow tube, and the inside diameter of the take-up roll is smaller than the inner diameter of the take-up roll. It is characterized in that a columnar weight having is arranged so as to be rollable with respect to the winding roll.

The invention according to claim 3 is the food material heating device according to claim 1, wherein the delivery roll is made to have a hollow tubular shape, and the delivery roll is
It is characterized in that it is externally inserted on the outer periphery of a rotatable holding roll having an outer diameter smaller than the inner diameter and having a horizontal axis.

In this invention, the water-permeable film may be any thin film having a property of containing water, such as cellophane, seasoning, cloth, nonwoven fabric, etc., and is usually a hydrophilic film, a water-absorbent film, or a water-retaining film. Various film materials or film materials, which are also referred to as a flexible film, can be used. In this specification, these films are collectively referred to as a water-permeable film.

In the food material heating device of the invention according to claim 1,
The take-up roll is placed in a free state on the upper surface between a pair of support rolls arranged in parallel and horizontally in close proximity so as to be parallel to the pair of support rolls. here,
In the actual operation, since the water-permeable film is wound on the outer circumference of the winding roll in advance, the winding roll comes into contact with the outer peripheral surface of the support roll via the water-permeable film on the outer circumference. . When the pair of support rolls are rotationally driven by the rotary drive mechanism, the rotational force of the pair of support rolls causes friction between the outer peripheral surface of the support rolls and the water-permeable film on the outer periphery of the winding roll. The force is transmitted to the take-up roll, the take-up roll rotates, and the water-permeable film is taken up on the take-up roll.

Here, as described above, since the take-up roll is only placed in a free state on the upper surface side between the pair of support rolls, the take-up amount of the water-permeable film wound on the take-up roll. When it is full, the take-up roll can be removed by simply lifting the take-up roll.Also, when installing a new empty take-up roll, the tip of the water-permeable film on the outer periphery of the take-up roll can be removed. All that is required is to wind the part and place it on a pair of support rolls.

Further, the winding roll is simply placed on the pair of support rolls by its own weight in a free state as described above,
The rotational driving force for the take-up roll is applied to the water-permeable film on the outer circumference of the take-up roll by a frictional force from the pair of support rolls. No suddenly large rotational force is applied to the take-up roll, and therefore the tension on the water-permeable film does not suddenly increase, so that the water-permeable film can be effectively prevented from breaking.

On the other hand, in the invention according to claim 2, since the cylindrical weight is rotatably arranged inside the hollow tubular take-up roll, a lightweight paper tube or the like can be used as the take-up roll. . That is, since the take-up roll is only placed on the upper surface between the pair of support rolls by its own weight, when the take-up roll is lightweight, the frictional force from the support roll only makes it smooth. Although it may not rotate, by disposing a weight inside the take-up roll, it is possible to use a light-weight take-up roll such as a paper tube. In particular, when the paper tube is used as the take-up roll, the fully wound paper tube can be discarded as it is.

Further, in the device according to the third aspect, the pay-out roll is externally inserted in a free state on the outer periphery of the rotatable holding roll having an outer diameter smaller than its inner diameter and having a horizontal rotation center. Therefore, the center position (center of gravity) of the delivery roll is located below the rotation center of the holding roll due to its own weight. Therefore, when the water-permeable film is drawn from the pay-out roll, some resistance is given to the rotation of the pay-out roll. That is, a slight back tension is applied to the drawn water-permeable film, so that it is possible to effectively prevent the situation in which the water-permeable film is excessively drawn out due to the inertial rotation of the feeding roll.

Embodiment FIG. 1 shows the whole constitution of an example of a food material heating apparatus according to an embodiment of the present invention, and FIGS. 2, 3 and 4 show the main parts thereof.

In FIG. 1, a food material 1 such as a plate-shaped kamaboko is placed on a tray 10, and the tray 10 is placed on a traveling head 11. Then, the tray 10 is pushed horizontally by pressure (not shown), and the tray 10 and the food material 1 are conveyed in the horizontal direction in a direction perpendicular to the paper surface of FIG. In addition, on both sides in the width direction of the tray 10, the tray 1
Tray guides 12A, 12B for guiding the zero travel
And plate stoppers 13A and 13B for supporting and guiding both sides of the plate 1A of the plate-shaped kamaboko serving as the food material 1.

Electrodes 3A and 3B are arranged on both sides of the food material 1 so as to face each other, and these electrodes 3A and 3B are moved toward and away from each other by advancing and retracting drive mechanisms 4A and 4B composed of fluid pressure cylinders. Is configured.
Further, between the electrodes 3A and 3B and the food material 1, strip-shaped long water-permeable films 5A and 5B made of cellophane or the like are arranged so as to be vertically movable. These water permeable films 5A and 5B are drawn out from the lower paying rolls 6A and 6B, respectively, and the upper take-up rolls 8A and 6B are drawn.
It winds up vertically by being wound up on 8B. Water tanks 7A and 7B are arranged below the electrodes 3A and 3B, and the water-permeable films 5A and 5B drawn from the feeding rolls 6A and 6B are guided by the guide rolls 15 and 16, and the water tanks 7A and 7B. It is dipped in the inside and pulled up from the water tanks 7A, 7B to take up rolls 8A,
It is wound by 8B.

The winding rolls 8A and 8B are constituted by hollow paper tubes, as shown in detail in FIGS. 2 and 3. The take-up rolls 8A and 8B are a pair of support rolls 16A and 16B arranged in parallel so as to be close to each other.
B; It is placed in a free state on the upper surface side between 17A and 17B. Support rolls 16A, 16B; 17A, 17
As shown in FIG. 2, B is a taper-shaped flange portion 18 or 19 formed at both ends of the outer peripheral surface of the winding roll B. The winding roll is formed on the outer peripheral surface between the flange portions 18 and 19. 8
A and 8B are configured to be placed. A drive roll 20 having a large surface friction coefficient, such as a urethane rubber roll, is in contact with the lower surface side between the support rolls 16A, 16B; 17A, 17B. The drive roll 20 is a rotary drive mechanism such as a motor. It is designed to be rotated by 21. The support rolls 16A, 1
6B; 17A and 17B are rotatably supported in a state in which support shafts 22 projecting from both ends thereof are engaged with a frame body 23, and the frame body 23 has a lower fixed base 24.
The distance between and can be adjusted by the adjusting bolt 25. That is, the adjusting bolt 25 adjusts the vertical position of the support rolls 16A, 16B; 17A, 17B so that these support rolls are driven by the drive roll 20.
It can be adjusted so as to be in contact with a suitable contact pressure. In the illustrated example, a cylindrical weight 26 having an outer diameter remarkably smaller than its inner diameter is rollably arranged inside the winding rolls 8A and 8B. The weight 26 has flanges 26A formed at both ends thereof so as not to separate from the winding rolls 8A and 8B.

On the other hand, the feeding rolls 6A and 6B are the winding rolls 8A and 8B.
Like the above, it is composed of a hollow paper tube, and the water-permeable films 5A and 5A are preliminarily formed on the feeding rolls 6A and 6B.
B is wrapped. Each feeding roll 6A, 6B has a fourth
As shown in the figure, it is externally inserted in a rotatable holding rack 27 supported horizontally between a pair of side plates 28. The outer diameter of the holding roll 27 is made much smaller than the inner diameter of the feeding rolls 6A and 6B.

In the above examples, at the start of operation, the water permeable films 5A and 5B need to be stretched from the feeding rolls 6A and 6B to the winding rolls 8A and 8B. At this time, first, the water permeable films are fed from the feeding rolls 6A and 6B. Of the flexible films 5A and 5B, the guide rolls 15 and 16, and the immersion into the water tanks 7A and 7B, and further pulling them up to wind the take-up rolls 8A and 8B in one or more layers, and the take-up rolls 8A and 8B as they are. Support rolls 16A, 16B; 17A,
It may be mounted on 17B. At this time, the winding roll 8
The winding directions for A and 8B may be determined as shown in FIG. 5 (note that FIG. 5 shows only one winding roll 8A, and the other winding roll 8B is symmetrical with FIG. 5). Will be).

At the time of electric heating, the electrodes 3A and 3B are advanced like the prior art shown in FIG.
The electrodes 3A and 3B may be pressed against both the left and right sides of the food material 1 while the 5B is sandwiched between them to energize the food material 1. Electrode 3 after energization
Move back A and 3B. After that, as indicated by the arrow in FIG. 5 with respect to one of the water-permeable films 5A, if the drive roll 20 is rotated by a predetermined number of rotations, the support rolls 16A and 16B pressed against it are rotated, The take-up roll 8A, which is in contact with the support rolls 16A and 16B through the water-permeable film 5A, is rotated by frictional force to wind up the water-permeable film 5A by a predetermined amount, and the water-permeable between the electrode 3A and the food material 1 is passed. The elastic film 5A is pulled upward by a predetermined distance. Of course, the same applies to the other water-permeable film 5B.

In the above embodiment, the weights 26 are arranged in the winding rolls 8A and 8B for the convenience of using lightweight paper tubes as the winding rolls 8A and 8B. However, the weight 26 is relatively heavy such as synthetic resin or metal. The weight 26 can be omitted when a take-up roll with a roll is used.

Further, in the above-described embodiment, the support rolls 16A, 16B; 17 from the rotary drive mechanism 21 via the drive roll 20.
Although A and 17B are indirectly rotationally driven, in some cases, the drive roll 20 may be omitted and the support rolls 16A and 16B may be omitted.
B; 17A and 17B may be directly driven.

Further, the tray 10 is used as a means for conveying the food material 1 in the illustrated embodiment, but since the portion of this conveying means is not a characteristic portion in the present invention, another conveying means is used. Needless to say, it may be carried by a belt conveyor, or a walking beam type carrying means may be used.

Effect of the Invention According to the food material heating device of the present invention, in a device that heats a food material by electrically heating with a water-permeable film sandwiched between the electrode and the food material, a take-up roll that winds the water-permeable film is used. Since it is placed on the upper surface side between the pair of support rolls in a free state, the take-up roll can be attached and detached very easily and easily, and therefore, the operation stop time due to the exchange of the take-up roll is extremely small. Since the length is short, the productivity can be improved, and the labor required for replacement can be reduced. Further, since the tension applied to the water-permeable film does not suddenly increase at the start of winding, it is possible to prevent the water-permeable film from breaking.

Further, particularly according to the invention of claim 2, by arranging the weight in the winding roll, a lightweight one, for example, a paper tube can be used as the winding roll, and the paper roll can be used as the winding roll. When a tube is used, it is possible to obtain the effect that the winding roll after the water permeable film is fully wound can be discarded as it is.

Further, according to the invention of claim 3, since some resistance is given to the withdrawal of the water-permeable film from the payout roll,
It is possible to apply an appropriate back tension to the film and prevent the excessive film from being pulled out by the inertial rotation of the feeding roll.

[Brief description of drawings]

FIG. 1 is a front view showing the whole constitution of an example of the food material heating apparatus of the present invention, FIG. 2 is an enlarged sectional view taken along the line II-II near the winding roll in the apparatus of FIG. 1, and FIG. III-I in the figure
A front cross-sectional view taken along line II, FIG. 4 is an enlarged cross-sectional view taken along line IV-IV near the feeding roll in the apparatus of FIG. 1, and FIG. 5 is a water-permeable film for the right-hand winding roll in the apparatus of FIG. FIG. 6 is a schematic view showing the winding direction and the rotation direction of each roll, and FIG. 6 is a schematic diagram showing the overall configuration of the food material heating device proposed prior to the present application. DESCRIPTION OF SYMBOLS 1 ... Food material, 3A, 3B ... Electrode, 4A, 4B ... Forward / backward drive mechanism, 5A, 5B ... Water-permeable film, 6A, 6B ... Delivery roll, 8A, 8B ... Winding roll, 16A, 16
B; 17A, 17B ... Support roll, 21 ... Rotation drive mechanism, 26 ... Weight, 27 ... Holding roll.

Claims (3)

[Scope of utility model registration request] 1. A conductive food material is arranged between a pair of electrodes that are close to and separated from each other, and the food material and each electrode are drawn from a lower feeding roll and wound upward. Arranging a water-permeable film wound in a roll, sandwiching the food material from the both sides by the pair of electrodes in the state of interposing the water-permeable film in the middle,
In a food heating device configured to heat a food material by electric heating, each of the take-up rolls is on the upper surface between a pair of support rolls that are arranged close to each other in parallel and horizontally, Is placed in a free state so as to be parallel to the supporting rolls, and the pair of supporting rolls is connected with a rotary drive mechanism for rotationally driving them in the same direction. . 2. The take-up roll is formed in a hollow tubular shape, and a cylindrical weight having an outer diameter smaller than the inner diameter of the take-up roll rolls inside the take-up roll. The food heating device according to claim 1, which is arranged freely. 3. The feeding roll is made to have a hollow tubular shape, and the feeding roll has an outer diameter smaller than its inner diameter and has a horizontal axis on the outer periphery of a rotatable holding roll. The extrapolation is performed in a free state in
The food heating device described.