JPH0856621A - Apparatus for preparation of strip food and preparation of strip food using the apparatus - Google Patents

Abstract

PURPOSE: To provide an apparatus for heating a strip food such as a strip intermediate product of a crab-like boiled fish paste before slitting the paste in the preparation of the fish paste and to provide a method for heating the food. CONSTITUTION: This apparatus is provided with a row of electrodes having a plurality of roller electrodes arranged parallel, a feeding means 27 for supplying electric power to the electrode row, a driving means for rotating the roller electrodes, a water-permeable film covering the electrode row and a supplying means for continuously supplying a food material in the form of a strip on the water-permeable film. Electric current is applied to the strip food material supplied on the water-permeable film through the water-permeable film with the roller electrodes to heat the food with the electric current. The roller electrodes are divided into two groups and the voltage to be applied to the roller electrodes of the side to supply the food material is controlled to be higher than the voltage applied to the downstream roller electrodes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for heating a food material such as fish meat paste in a strip shape in a process of producing a food product such as a fish paste product and a method of using the device. In producing a fish meat paste product having a large number of cuts so that it can be easily torn into a crab meat, that is, in the case of producing a so-called crab-style kamaboko, an apparatus and a method suitable for heating in a band-like stage before finally making a cut It is about.

[0002]

BACKGROUND ART Kneaded products include so-called kamaboko with a plate, bamboo leaf-shaped kamaboko, chikuwa, hanpen, and various other types. Among them, fish meat commonly referred to as "crab-style kamaboko" or "crab kamaboko" The kneaded product is easy to be cleaved into a crab meat, has a texture similar to that of a crab meat, and is easy to eat.

As a method for producing the above-mentioned crab-like kamaboko, generally, seasonings and the like are added to the fish meat paste, adjusted and kneaded, and then formed into a strip shape, and steamed at the stage of the obtained strip-shaped intermediate product. It is common to heat the machine with hot steam and then make a number of slits in the intermediate strip.

In the process of manufacturing the crab-like kamaboko as described above, in the process of heating the belt-shaped intermediate product by the conventional steamer, it takes a long time to heat and the steamer itself has to be enlarged. Therefore, there is a problem that productivity is obstructed and production cost is increased at the same time.

That is, in the conventional heating process of a general crab-style kamaboko, it is usual that the strip-shaped intermediate product is continuously fed into the steamer and heated by high temperature steam while continuously running in the steamer. In this case, it takes a long time of about 2 minutes until the heating is completed, while the normal line speed is 6 to 8 m / min, so that the steamer length is required to be 10 to 15 m.

Therefore, the inventor of the present application intends to heat a viscous strip-like food product such as an intermediate product of crab-style kamaboko in a short time, thereby shortening the size and size of the heating equipment. Japanese Patent Application No. 6-98081 proposes an apparatus for producing a band-shaped food product using electric heating (Joule heating). The above-mentioned proposed manufacturing apparatus is basically an electrode array in which a plurality of roller-shaped electrodes each having at least an outer peripheral surface made of a conductive material are arranged in parallel and horizontally at a predetermined interval, and Power feeding means for feeding power to the roller-shaped electrodes of the electrode array, rotation drive means for rotating each of the roller-shaped electrodes, and hanging on the electrode array, run along with the rotation of the roller-shaped electrodes. A water-permeable film to be obtained, and a supply means for continuously supplying a food material in a belt shape on the water-permeable film at one end side of the electrode array, and a belt-shaped food material supplied on the water-permeable film. On the other hand, an electric current is caused to flow from each roller-shaped electrode through the water-permeable film, whereby the band-shaped food material is electrically heated. FIG. 14 shows an example of a situation in which a band-shaped food material, for example, ground fish meat, is electrically heated by such a proposed apparatus for manufacturing band-shaped food.

In the example of FIG. 14, two water-permeable films 35 and 37 are arranged in a bridge shape on the upper surface side of adjacent roller-shaped electrodes in the electrode array, for example, roller-shaped electrodes 6B and 6C. The fish meat surimi 43 is placed on the water-permeable films 35 and 37, the water-permeable films 35 and 37 move forward with the rotation of the roller-shaped electrodes 6B and 6C, and the fish meat surimi 43 thereon moves forward. Here, the water-permeable films 35 and 37 on the roller-shaped electrodes 6B and 6C are
Conductivity is imparted by dropping or spraying water or the like by an appropriate water supply means. Therefore, if a voltage is applied between the electrodes 6B and 6C, a current flows from the electrodes 6B and 6C to the fish surimi 43 through the water-permeable films 35 and 37,
Due to the resistance of the ground fish meat 43, it is heated and heated.

[0008]

By the way, in actually heating the ground fish meat with electricity using the apparatus proposed above, a concrete configuration for feeding power to the roller-shaped electrode is as shown in FIG. Has been. That is, among the roller-shaped electrodes 6A to 6H forming the electrode array, the roller-shaped electrodes 6A and 6H at both ends are grounded (earthed), and other roller-shaped electrodes 6B to 6G are
A power supply (usually a high frequency power supply) 14 as the power supply means 127
From No. 9, power is supplied so that a constant and same voltage is applied between the adjacent electrodes. According to such a configuration, the same voltage is applied between any of the roller-shaped electrodes 6B to 6G from the upstream side (supply side) to the downstream side (discharge side) of the surimi of fish meat. It will be.

On the other hand, it has been found that the temperature change from the upstream side (initial stage of energization) to the downstream side (end stage of energization) when power is supplied as described above has a pattern as shown in FIG. That is, in the initial stage (upstream side) of the start of energization, the temperature rise is relatively gradual, and the gradient of the temperature rise gradually increases with the passage of the energization time (hence, toward the downstream side), and at the end of energization (downstream side) The gradient of temperature rise is the largest. And this means that the gradient of the temperature rise becomes the largest near the heating target temperature (maximum target heating temperature).

It is considered that such a phenomenon is generally due to the decrease in electric resistance of food materials as the temperature rises. That is, in the energization heating by Joule heat, the heat generation amount is proportional to the resistance of the energization target, and is proportional to the square of the current, the temperature of the food material rises and the resistance decreases with the passage of the energization heating time, When the voltage is constant, the current increases in inverse proportion to the decrease in resistance. Therefore, it is considered that the amount of heat generation eventually increases due to the temperature increase of the food material and the rate of temperature increase increases.

Such a phenomenon makes it difficult to properly control the actual maximum heating temperature of the band-shaped food material to the target temperature by the above-mentioned apparatus, and eventually causes the unevenness, variation and defects in the quality of the band-shaped food. Become. That is, in the device of FIG. 13, the voltage of the power source 149 is adjusted according to the line speed (moving speed of the fish meat surimi), so that the electrode 6
It is conceivable to control the temperature of the fish paste to reach the target temperature at the position G. However, since the temperature of the fish paste sharply rises near the target temperature as shown in FIG. The actual maximum heating temperature changes due to variations and errors in the applied voltage and errors and variations in the line speed, resulting in insufficient heating and overheating.

Further, when the temperature of the band-shaped food material at the start of electric heating changes due to, for example, a change in outside air temperature, the actual maximum heating temperature of the band-shaped food material changes if the temperature rise due to electric heating is constant. Overheating or underheating usually occurs. Therefore, it is desirable to adjust the voltage applied to the electrodes according to the temperature of the strip-shaped food material at the start of energization heating. As the temperature rise gradient increases near the target heating temperature,
It was difficult to correctly control the maximum heating temperature according to the temperature of the band-shaped food material at the start of electric heating.

The present invention has been made in view of the above circumstances, and an object thereof is to realize an apparatus capable of heating a band-shaped food material to a required target temperature with high accuracy when electrically heating. Further, it is another object of the present invention to enable accurate heating to a required target temperature even when the temperature of the supplied strip-shaped food material is different.

[0014]

In order to solve the above-mentioned problems, the food manufacturing apparatus according to claim 1 has a plurality of roller-shaped electrodes each having at least an outer peripheral surface made of a conductive material at predetermined intervals. Electrode arrays arranged in parallel and horizontally with each other, power supply means for applying a voltage between adjacent roller-shaped electrodes in the electrode array, and rotational drive for rotating each roller-shaped electrode. Means, a water-permeable film that is hung on the electrode array and can run with the rotation of a roller-shaped electrode, and a food material continuously in a strip shape on the water-permeable film at one end of the electrode array. And a supply means for supplying, wherein an electric current is passed from each roller-shaped electrode through the water-permeable film to the belt-shaped food material supplied on the water-permeable film, whereby the band-shaped food material is electrically heated. In the belt-shaped food manufacturing apparatus thus configured, the electrode array is divided from the food material supply side toward the downstream side into a plurality of groups each composed of a plurality of roller-shaped electrodes, and the power feeding means is provided in each group. It is characterized in that different voltages can be applied to each of them.

On the other hand, according to a second aspect of the present invention, there is provided an apparatus for producing a band-shaped food product between an electrode array in which a plurality of electrodes are arranged at predetermined intervals so as to be parallel and horizontal to each other, and between adjacent electrodes in the electrode array. Power feeding means for applying a voltage, a water-permeable film arranged so as to be able to travel along the direction in which the electrodes are arranged on the electrode array, and for running the water-permeable film along the direction in which the electrodes are arranged. Of the driving means, and a supply means for supplying the food material in a strip shape on the water-permeable film on one end side of the electrode array, for the strip-shaped food material supplied on the water-permeable film. An electric current is passed from each electrode through a water-permeable film, whereby a band-shaped food material manufacturing apparatus is configured to electrically heat the band-shaped food material.In this case, the electrode rows are directed from the food material supply side to the downstream side, respectively. Is divided into a plurality of groups comprising a plurality of electrodes, said power supply means is characterized in that it is configured so as to apply a different voltage to each group.

According to a third aspect of the present invention, there is provided the apparatus for producing a band-shaped food product according to the first or second aspect, wherein the power feeding means includes a voltage regulator.

According to a fourth aspect of the invention, there is provided the apparatus for producing a band-shaped food product according to the first or second aspect, wherein the power feeding means includes a transformer having an intermediate tap in the secondary winding. It is characterized in that the voltage applied to the electrode of the group on the food material supply side and the voltage applied to the electrode of the group on the downstream side are maintained at a constant ratio.

A food manufacturing apparatus according to a fifth aspect of the present invention is the food manufacturing apparatus according to any one of the first to third aspects, wherein the power feeding means includes temperature detecting means for detecting the temperature of the strip-shaped food material. The power supply means is configured to control the voltage applied to the electrodes according to the detection signal from the temperature detection means.

The method for producing a band-shaped food product according to the invention of claim 6 is
When manufacturing a strip-shaped food product using the manufacturing apparatus according to claim 1 or 2, the voltage applied to the electrode of the group on the food material supply side is relatively greater than the voltage applied to the electrode of the group on the downstream side. It is characterized in that the power feeding means is controlled so as to be extremely high.

In the present invention, the band-shaped food product is not limited to the band-shaped food product in the state of the final product, but also the band-shaped food product in the state of the intermediate product.

In the present invention, the water-permeable film may be any film-like or sheet-like one having a property of absorbing water, such as cellophane, paper, cloth, non-woven fabric, etc. Various film materials and sheet materials such as a hydrophilic film, a water-absorbent film, and a water-retaining film can be used, and these are collectively referred to as a water-permeable film. The water-permeable film may be used singly, or two or more may be laminated, and when two or more are laminated, different kinds of water-permeable films may be used.

[0022]

In the apparatus according to the first aspect of the present invention, the roller-shaped electrodes forming the electrode array are simultaneously rotated in the predetermined direction, so that the water-permeable film hung on the electrode array is also run in the predetermined direction. It will be. If the viscous food material such as ground fish meat is supplied in a strip shape on the water-permeable film at one end side of the electrode array by the supply means,
The strip-shaped food material, while being placed on the water-permeable film, moves in the direction in which the roller-shaped electrodes are arranged as the water-permeable film travels. Here, water (or salt water) is previously added to the water-permeable film by an appropriate water supply means to impart conductivity. If the strip-shaped food material contains a large amount of water before heating, the water-permeable film will be permeated with water containing salt of the food material to impart electrical conductivity without external water supply. Sometimes,
In that case, the water supply means becomes unnecessary. In such a state that the water-permeable film is provided with conductivity, by a voltage applied between the adjacent roller-shaped electrodes, from the roller-shaped electrode through the water-permeable film to the strip-shaped food material on the water-permeable film. An electric current flows and heat is generated due to the electric resistance of the food material, that is, energization heating by so-called Joule heat is performed.

Here, different voltages can be applied to the roller-shaped electrodes of the food material supply side (upstream side) and the roller-shaped electrodes of the downstream side group. Therefore, claim 6
According to the invention described in (1), the voltage applied to the electrode of the upstream group can be controlled to be relatively higher than the voltage applied to the electrode of the downstream group. Then, by controlling the voltage applied to the electrode of the upstream side group to be high and the voltage applied to the electrode of the downstream side group to be low as described above, the maximum heating temperature of the strip-shaped food material becomes the desired target temperature. Can be controlled with high precision. That is, on the upstream side, it is possible to quickly raise the temperature to a temperature (intermediate temperature) lower than the target temperature by applying a high voltage, and on the downstream side, the temperature rise is moderated by applying a relatively low voltage. Therefore, the actual maximum heating temperature can be properly heated to the target temperature without significantly exceeding the target temperature or conversely not reaching the target temperature. Although the temperature rise on the downstream side is gentle, the temperature rise on the upstream side can be made relatively large, so that the temperature rise is not particularly slow in total.

In addition, according to the above-mentioned electric heating, heat is generated from the inside of the band-shaped food material due to its electric resistance, so that it is remarkably compared with the case of heating with high temperature steam from the outside as in a conventional steamer. The rate of temperature rise is high, and therefore the time required for heating is shortened. As a result, if the line speed is the same, the length of the heating equipment can be remarkably short. According to the experiments by the present inventors, the time required for heating is reduced to 1/5 or less as compared with the conventional general steamer,
As a result, it has been found that the length of heating equipment can be significantly shortened.

In the case of the apparatus of the second aspect of the invention, the water-permeable film itself located on the electrode array is made to run in the direction in which the electrodes are arranged by the running drive means. Therefore, if a food material such as fish meat is supplied in a strip shape on the permeable film at one end side of the electrode array, the strip-shaped food material is placed on the permeable film in the same manner as described above, together with the permeable film. It will move in the direction in which the electrodes are arranged. Also in this case, the applied voltage can be made different between the electrode of the upstream side group and the electrode of the downstream side group. Therefore, similarly to the above (that is, as in the invention according to claim 6), If a voltage lower than that between the electrodes of the upstream group is applied between the electrodes, the maximum heating temperature for the band-shaped food material can be controlled to the target temperature with high accuracy, as described above.

If the supply means is provided with the temperature detecting means for detecting the temperature of the band-shaped food material as described in claim 5, the band-shaped food material can be heated more accurately to the required target temperature. . That is, it is possible to adjust the amount of temperature rise in the electrodes of the upstream group by controlling the voltage applied to the electrodes of the upstream group, for example, according to the temperature of the strip-shaped food material in the supply means, and thus the initial temperature It is possible to reliably prevent the final maximum heating temperature from changing due to the height.

[0027]

1 to 3 show an apparatus for producing a band-shaped food product according to an embodiment of the present invention. In the embodiment shown in FIGS. 1 to 3, an example in which two water-permeable films are used as the above-mentioned water-permeable film, that is, an endless ring made of a relatively thick water-permeable film made of cloth or non-woven fabric as described later. An example in which a belt-shaped first water-permeable film 35 and a second water-permeable film 37 made of cellophane, which is relatively thin and has a smooth surface, are overlapped and used.

1 and 2, a pair of parallel frame plates 1,
A plurality of (15 in the illustrated example) roller-shaped electrodes 5 </ b> A to 5 </ b> O are arranged in parallel between the three so as to be parallel to each other on the same horizontal plane to form an electrode array 5 (illustrated in the figure). For the sake of convenience, in FIG. 1 and FIG.
I omitted the configuration between E and the roller-shaped electrode 5M,
As is clear from FIG. 3, this portion is the roller-shaped electrode 5F.
~ 5L etc. ). Each of the roller-shaped electrodes 5A to 5O forming the electrode array 5 may have at least the outer peripheral surface made of a conductive material, but in the illustrated example, each of the roller-shaped electrodes 5A to 5O is a support protruding from both sides thereof. It is assumed that the entire shaft including the shafts 7 and 9 is made of a conductive metal material.

The roller-shaped electrodes 5A to 5O are rotatably supported by the frame plates 1 and 3 on both sides in an electrically insulated state. That is, the frame plates 1 and 3 on both sides are made of a plurality of metal members corresponding to the support shafts 7 and 9 protruding from both sides of the roller-shaped electrodes 5A to 5O, respectively, via insulating materials 11 and 12 made of resin or the like. Bearing members 13 and 14 are provided, and spindles 7 and 9 are rotatably attached to these bearing members 13 and 14, respectively.

Further, each of the roller-shaped electrodes 5A to 5O is adapted to be rotationally driven from one side thereof by the rotational driving means 15 about the axis thereof. That is, a drive device 17 including a motor and a reduction gear is attached to one end side of the frame plate 3, and a drive shaft 19 protruding from the drive device 17 is parallel to the direction in which the roller-shaped electrodes 5A to 5O are arranged. And a plurality of bevel gears 21 made of electrically insulating resin or the like are extended on the drive shaft 19 of the roller-shaped electrodes 5A to 5A.
It is attached corresponding to O, while each roller-shaped electrode 5A-5
The support shaft 9 on one side of O is extended to the outside of the frame plate 3, and the bevel gears 23 are attached to the support shafts 9 at that portion respectively, and the bevel gear 21 and the bevel gear 23 are meshed with each other to rotate. The driving means 15 is configured. Therefore, in the rotation drive means 15, the drive shaft 17 is driven by the drive device 17.
Is rotated, the roller-shaped electrodes 5A to 5O are simultaneously rotated in the same direction at a constant speed via the bevel gears 21 and 23.

The bearing member 13 for rotatably supporting the support shaft 7 of each of the roller-shaped electrodes 5A to 5O on the frame plate 1,
Lead wires 25A to 25O are connected to each other. Of these lead wires 25A to 25O, the lead wires 25A, 25O and 25H corresponding to the roller-shaped electrodes 5A and 5O at both ends and the roller-shaped electrode 5H at the center are grounded. Other lead wires 25B to 25G, 25I to
The 25N is connected to the power feeding means 27, as shown in FIG. 3, which will be described later.

Further, between the frame plates 1 and 3, an inlet side guide roller 2 is provided at an extension position on the side of the roller-shaped electrode 5A in the electrode array 5 so as to be parallel to each of the roller-shaped electrodes 5A to 5O.
9 is provided, and the inlet side guide roller 29 is also rotatably supported by the frame plates 1 and 3. Further, as shown in FIG. 2, two lower guide rollers 31 and 33 are rotatably provided below both sides of the electrode array 5 so as to be parallel to the roller-shaped electrodes 5A to 5O. .

The inlet side guide roller 29, the electrode array 5 (each roller-shaped electrode 5A to 5O) and the lower side guide rollers 31 and 33 are entirely covered with a relatively thick endless member made of cloth or non-woven fabric as described above. An annular first water-permeable film 35 is wound so as to be able to travel around. Here, if the roller-shaped electrodes 5A to 5O all rotate in the same direction at a constant speed, the first water-permeable film 35 also travels in a fixed direction.

Further, on the outer peripheral surface of the first water-permeable film 35, there is provided an endless annular second surface having a smooth surface such as cellophane so that the first water-permeable film 35 and the first water-permeable film 35 can travel around. A water-permeable film 37 is arranged.
That is, the second water-permeable film 37 is in contact with the outer peripheral surface of the first water-permeable film 35 (the upper surface of the first water-permeable film 35 on the electrode array 5), Similarly, while being wound around the entire inlet side guide roller 29, the electrode array 5 (each roller-shaped electrode 5A to 5O) and the lower side guide rollers 31 and 33, it is circulated in the same direction together with the first water permeable film 35. It is designed to run.

Here, the water-permeable films 35, 37 are disposed at appropriate positions inside the route along which the endless annular first and second water-permeable films 35, 37 travel around and below the electrode array 5.
A water supply pipe 51 as a water supply means for supplying water, salt water, or the like for imparting conductivity to 37 is provided extending in the width direction of the water-permeable film. The water supply pipe 51 is connected to a water supply tank via a hose (hose and water supply tank are not shown), and the water supply pipe 51
A plurality of holes are formed in the lower part of the film across the entire width of the water-permeable film. Therefore, such a water supply pipe 5
According to 1, it is possible to impart conductivity by dropping water over the entire width of the water-permeable films 35 and 37 and allowing water to permeate the water-permeable films 35 and 37.

The water supply means is not limited to the water supply pipe having the above-mentioned structure, but may be, for example, a sprayer for spraying mist, and the water-permeable film is configured to pass through the tank containing water. May be.

Further, above the vicinity of the position corresponding to the inlet side guide roller 29 in the second water permeable film 37, the fish meat ground 43 to be heated is continuously striped on the second water permeable film 37. Supplying means 4 for supplying
Five extrusion nozzles 47 are provided.

Here, as shown in FIG. 3, the supply means 45 has a hopper 90 into which food material is introduced from its upper opening, and a screw shaft 91 is attached to the bottom of the hopper 90. . The screw shaft 91 is rotated by a screw driving means 92 including a motor and a reduction gear. The end of the food material extruded by the screw as the screw shaft 91 rotates is connected to one end of the supply pipe 93, and the other end of the supply pipe 93 is connected to the extrusion nozzle 47. In this way, the supply means 45
The rotation of the screw shaft 91 causes the extrusion nozzle 47
The food material can be continuously supplied onto the electrode array 5. The extruding nozzle 47 is provided with a temperature sensor 94, which is a temperature detecting means including a temperature sensor 94 and a temperature detecting circuit 95, for detecting the temperature of the food material.

FIG. 3 shows a concrete example of the power feeding means 27 corresponding to the roller-shaped electrodes 5B to 5G and 5I to 5N in the electrode array 5.

In FIG. 3, the roller-shaped electrodes 5B to 5G constitute a group on the food material supply side (upstream side), of which 5B and the roller-shaped electrode 5D at a position placed one thereacross, Roller-shaped electrode 5 placed one
F is commonly connected to one output terminal 81A of the first voltage regulator 81, and the roller-shaped electrodes 5C, 5E, 5G are commonly connected to the other output terminal 81B of the first voltage regulator 81. . On the other hand, the roller-shaped electrodes 5I to 5N form a group on the downstream side (food material discharge side) with respect to the food material supply side, of which 5I and one roller-shaped electrode 5K placed at a position, and one more. The roller-shaped electrode 5M in the placed position is commonly connected to one output terminal 82A of the second voltage regulator 82, and the roller-shaped electrodes 5J, 5L, 5N are the other output terminal 82B of the second voltage regulator 82. Are commonly connected to. A power source voltage from a power source 49 is applied to each of the voltage regulators 81 and 82 so that the output voltage can be regulated. Then, each voltage regulator 81, 82
A temperature detection signal from the above-mentioned temperature detection means is input to. That is, the above-mentioned temperature sensor 9
4 is connected to the temperature detection circuit 95, and a temperature detection signal corresponding to the food material temperature in the extrusion nozzle 47 in which the temperature sensor 94 is installed is supplied from the temperature detection circuit 95 to the voltage regulators 81 and 82. Therefore, it is possible to adjust the output voltage according to the temperature detection signal. Here, as the power supply 49, 1 kHz to 400
It is desirable to use a high frequency power supply of about kHz.

Since the power feeding means 27 is constructed as described above, the roller-shaped electrodes 5B to 5G of the group on the food material supply side are provided.
It is possible to make the voltage E1 applied between the respective electrodes and the voltage E2 applied between the respective electrodes of the roller-shaped electrodes 5I to 5N of the downstream group different from each other.

Using the heating apparatus shown in FIGS. 1 to 3 as described above, a situation in which the viscous strip-shaped food material, for example, fish meat paste 43, is heated by the method of the invention of claim 6,
This will be described with reference to FIG. Figure 1
FIG. 4 relates to an embodiment of the technique previously proposed by the inventor of the present application and shows a state in which the fish meat paste 43, which is a band-shaped food material, is heated by energization between the roller-shaped electrodes. Since the same applies to the invention of the present application, it is directly cited here and used for explanation. However, the roller-shaped electrodes “6B” and “6C” in FIG.
It will be any adjacent combination of 5G and 5I to 5N.

When the fish ground meat 43 is extruded in a band shape from the extruding nozzle 47 of the supply means 45, the band-shaped fish meat ground 43 is placed on the second water-permeable film 37 on the electrode array 5 and then the first And the second water-permeable film 35, 3
As the vehicle travels 7, the vehicle continuously moves to the right in FIGS.

Here, the water dripping from the water supply pipe 51 is infiltrated into the first water permeable film 35 and the second water permeable film 37, thereby imparting conductivity. If sufficient conductivity is provided only by the water from the ground fish meat 43, it is not necessary to drip water from the water supply pipe 51. Moreover, what is dripped from the water supply pipe 51 is not limited to water, but may be any liquid that is sufficient to impart conductivity to a water-permeable film, such as saline.

In the state in which the first and second water-permeable films 35, 37 are provided with conductivity as described above, the roller-shaped electrodes 5A to 5O of the electrode array 5 at both ends and at the center are roller-shaped. The roller-shaped electrodes 5B to 5G and 5I to 5N except for the electrodes 5A, 5O and 5H are both water-permeable from the roller-shaped electrodes 5B to 5G and 5I to 5N by a high frequency voltage applied by the power feeding means 27. A high-frequency current flows through the films 37 and 35 to the fish meat paste 43 on the second water-permeable film 37, and the fish meat paste 43 itself generates heat due to the electric resistance of the fish meat paste 43. That is, electric heating is performed by so-called Joule heat.

Here, each voltage regulator 8 of the power feeding means 27
Numerals 1 and 82 denote roller-shaped electrodes 5B-
The voltage E2 applied between the electrodes of the roller-shaped electrodes 5I to 5N of the downstream group is controlled to be relatively lower than the voltage E1 applied between the electrodes of 5G. The heating situation at that time will be described with reference to FIG. The ground fish meat 43 continuously moves as the water-permeable films 35 and 37 travel, and is electrically heated by the high-frequency voltage E1 at the roller-shaped electrodes 5B to 5G of the group on the food material supply side, so that the initial temperature is increased. The temperature gradually rises from T0, and after reaching an intermediate temperature T1 lower than the final target temperature, it is moved onto the roller-shaped electrodes 5I to 5N of the downstream group. A relatively low voltage E2 is applied to the roller-shaped electrodes 5I to 5N of the downstream group.
As a result, the temperature of the fish paste surpasses moderately even though it is already at a high temperature, and the temperature gradient near the target temperature also becomes relatively gentle. It is possible to control with high accuracy so that the temperature becomes the target temperature T2.

It should be noted that the temperature (initial temperature) of the ground fish meat 43 is detected near the extrusion nozzle 47 immediately before being supplied onto the second water-permeable film 37 by a temperature sensor 94 and a temperature detection circuit 95 which are temperature detection means. Since the temperature detection values are input to the voltage regulators 81 and 82, the voltage applied by the roller-shaped electrodes 5B to 5G and 5I to 5N is set when the temperature of the fish meat paste 43 is low, for example. When the temperature of the fish meat surimi 43 is high, the roller-shaped electrodes 5B to 5G,
The applied voltage is lowered at 5I to 5N to reduce the heating amount, and thus the fish paste 43 can always be heated to a constant target temperature T2 regardless of the initial temperature T0. Here, the voltage adjustment by the temperature detecting means as described above may be manual adjustment in some cases. That is, the temperature detection value by the temperature sensor 94 may be read and the voltage regulators 81 and 82 may be manually adjusted according to the value.

Further, since the roller-shaped electrode 5H located between the roller-shaped electrodes 5B to 5G and the roller-shaped electrodes 5I to 5N in the electrode array 5 is grounded (grounded), the roller-side electrode 5H of the group on the food material supply side is grounded. The high-frequency current flowing from the roller-shaped electrodes 5B to 5G to the band-shaped food material does not flow toward the roller-shaped electrodes 5I to 5N of the downstream group. On the contrary, the high-frequency current flowing from the roller-shaped electrode of the downstream side group to the strip-shaped food material does not flow toward the roller-shaped electrode of the group on the food material supply side.

Further, the roller-shaped electrodes 5 on both ends of the electrode array 5 are provided.
Since A and 5H are also grounded, the high-frequency current flowing in the fish paste 43 does not flow through the fish paste 43 to the pre-process and post-process, and therefore the safety of work can be ensured. it can.

The band-shaped fish meat surimi 43 which has been moved to the right end of the electrode array 5 as described above and has been electrically heated is
When manufacturing a crab-style kamaboko, it is transferred to a slit process for making a number of cuts.

In the above embodiments, the number of roller-shaped electrodes of the food material supply side group and the number of roller-shaped electrodes of the downstream side group are the same, but they may be different.

Further, in the power feeding means 27, the voltage regulators 81 and 82 are configured to be connected in parallel to the same power source 49, but it is also possible to connect separate power sources to the voltage regulators 81 and 82, respectively. Of course.

Although the temperature detection signal output from the temperature detection circuit 95 of the temperature detection means is input to both the voltage regulators 81 and 82, it may be input to only one of them. For example, by inputting only to the first voltage regulator 81, the roller-shaped electrodes 5B to 5G of the food material supply side group.
You may comprise so that only the amount of heating in 1 may be adjusted. That is, regardless of the initial temperature of the ground fish meat 43, the temperature at the end of heating by the roller-shaped electrodes 5B to 5G of the group on the food material supply side (intermediate temperature T1) becomes constant in accordance with the temperature detection signal. It is also possible to adjust the voltage of the roller-shaped electrodes 5I to 5N of the downstream side group independently of the detected value of the temperature sensor 94.

Further, in the above-mentioned embodiment, the voltage regulator is connected to each of the roller-shaped electrodes 5B to 5G of the group on the food material supply side and the roller-shaped electrodes 5I to 5N of the group on the downstream side. The voltage regulator may be connected only to the roller-shaped electrodes of the group, and the voltage from the power source may be directly applied to the roller-shaped electrodes of the other group. In this case also, the voltage is applied to the roller-shaped electrodes of one group. It is possible to adjust the voltage and the voltage applied to the other group of roller-shaped electrodes to be different.

In the above embodiment, a relatively thick first water-permeable film 35 is used as the water-permeable film,
A thin water-permeable but smooth second cellophane and other second water-permeable film 37 are used in an overlapping manner. In this case, the first water-permeable film 35 has the fish meat surimi hanging between the respective roller-shaped electrodes. The second water-permeable film 3 functions as a reinforcing / supporting member for preventing the second water-permeable film 3.
Since No. 7 has a smooth surface and has a good peeling property of the fish meat surimi, the fish meat surimi which has been electrically heated can be easily peeled off in order to be transferred to the next step.

If the thin water-permeable film 37 such as cellophane can sufficiently support the ground fish meat, the first
The water-permeable film may be omitted, and in some cases, two thin water-permeable films such as cellophane may be stacked.

Further, in FIG. 1, from the power feeding means 27 to the bearing member 1
3, roller-shaped electrodes 5B to 5G, 5I to 5N via the support shaft 7
The roller-shaped electrodes 5B to
Power may be supplied to the roller-shaped electrodes 5B to 5G and 5I to 5N by bringing a power supply body such as a power supply roller or a power supply brush (not shown) into contact with 5G, 5I to 5N or their supporting shaft 7.

FIG. 5 shows an apparatus for producing a band-shaped food product according to another embodiment of the invention of claim 1. Here, since the constitutions of the supplying means 45, the first and second water permeable films 35, 37, etc. are the same as those of the embodiment shown in FIGS. 1 to 3, the illustration thereof is omitted in FIG. The different power supply means 27 will be mainly described. The same elements as those shown in FIGS. 1 to 3 and 14 are designated by the same reference numerals.

In FIG. 5, roller-shaped electrodes 5B to 5G are the roller-shaped electrodes of the group on the food material supply side, as in the previous embodiment, and 5B and the roller-shaped electrodes 5D placed at one position relative thereto. Further, the roller-shaped electrode 5F placed one more is the terminal 20 on one end side of the secondary winding 202 of the transformer 200.
2A, commonly connected to roller-shaped electrodes 5C, 5E, 5G
Is a terminal 2 on the other end of the secondary winding 202 of the transformer 200.
02B is commonly connected. On the other hand, similarly to the previous embodiment, the roller-shaped electrodes 5I to 5N are the roller-shaped electrodes of the downstream group, of which 5I is one roller-shaped electrode 5K and one more roller-shaped electrode 5K. The roller-shaped electrode 5M is commonly connected to an intermediate tap 202C provided in the middle of the secondary winding of the transformer 200.
J, 5L and 5N are commonly connected to the terminal 202B of the secondary winding 202 of the transformer 200. A voltage regulator 81 is connected to the primary winding 201 of the transformer 200.

When the transformer 200 is used in this way,
The voltage applied between the electrodes of the roller-shaped electrodes 5B to 5G of the group on the food material supply side, and the roller-shaped electrodes 5I to 5I of the group on the downstream side.
The ratio to the voltage applied between the 5N electrodes is
No. 0 secondary winding 202 terminals 202A, 202B
It is the ratio of the number of turns of the winding wire between the intermediate tap 202C and the terminal 202B. Therefore, even when the supply voltage is changed by the voltage regulator 81, the roller-shaped electrodes 5B to 5G of the food material supply side group and the roller-shaped electrode 5I of the downstream side group.
The voltage ratio with ~ 5N can be kept constant at all times.

FIG. 6 shows a strip-shaped food manufacturing apparatus according to still another embodiment of the present invention, which has been described focusing on the power feeding means 27 as in the case of FIG. In this embodiment, between the roller-shaped electrodes 5B to 5G of the group on the food material supply side and the roller-shaped electrode rows 5I to 5N of the group on the downstream side, the roller-shaped electrode 5P of the intermediate group is provided.
~ 5U was provided. As a result, the roller-shaped electrodes 5B of each group are
Voltage E applied at ~ 5G, 5P-5U, 5I-5N
The relationship of 1, E3, E2 can be controlled so that E1>E3> E2. In this case, the temperature rise of the ground fish meat is as shown in FIG. 7, and the temperature can be more accurately heated to the target temperature. That is, first of all, the ground fish meat is the roller-shaped electrodes 5B-
Upon receiving the first energization heating at 5G, the temperature rises from the initial temperature to the first intermediate temperature T11, and then the second intermediate temperature slightly lower than the required target temperature T2 by the roller-shaped electrodes 5P to 5U of the intermediate group. It is electrically heated to T12, and finally reaches the required target temperature T2 with high accuracy while gradually increasing the temperature by the roller-shaped electrodes 5I to 5N of the downstream group.

Although the electrode array is divided into three groups in this embodiment, it may be divided into four or more groups.

FIG. 8 shows an apparatus for producing a band-shaped food product according to another embodiment of the invention of claim 1, which was described focusing on the power supply means 27 as in the case of FIG. In this embodiment, a pair of (two) adjacent roller-shaped electrodes 400B, 400C, 400E are provided.
・ 400F, 400H, 400I, 400K, 400L
Are constant current circuits 402A, 402B, 402, respectively.
Each power source 49A, 49B, 49C via C, 402D,
49D. The other roller-shaped electrodes 400D, 400G between these paired roller-shaped electrodes,
400J and the roller-shaped electrodes 400A and 400M at both ends are grounded. In this embodiment, while the fish meat paste 43 moves from the left to the right in the figure, the fish meat paste 43 is electrically heated and its temperature rises and its resistance decreases, but since the constant current circuit is incorporated. The voltage also decreases, so that the amount of energized heating decreases, and the rate of temperature increase (gradient of temperature increase) decreases.
Therefore, as shown in FIG. 15, the temperature does not rise sharply in the vicinity of the target temperature, and the target temperature can be accurately heated.

FIG. 9 and FIG. 10 show a strip-shaped food producing apparatus according to an embodiment of the invention of claim 2. 9 and 10, the same elements as those shown in FIGS. 1 to 3 are designated by the same reference numerals.

9 and 10, the electrode array 5 is shown in FIGS.
Similar to the embodiment of FIG. 3, a plurality (six in the illustrated example) of roller-shaped electrodes 5A to 5O are arranged in parallel so as to be parallel to each other on the same horizontal plane, and each roller-shaped electrode is arranged. Similarly to the above, the electrodes 5A to 5O are supported while being electrically insulated from the frame plates 1 and 3 on both sides. However, in this embodiment, the roller electrodes 5A to 5O are
It is simply rotatably supported, and is not configured to be rotationally driven as in the embodiment of FIGS.

A water-permeable film 60 is in contact with the electrode array 5 so as to run in the direction in which the roller-shaped electrodes 5A to 5O are arranged. The water-permeable film 60 is formed in an endless ring shape as a whole in the form of a band, and has a driving roller 62 and a driving roller 62 arranged at an extension position on the right end side (roller-shaped electrode 5H side) of the electrode array 5. It is wound around a driven roller 64 disposed at an extended position on the left end side (roller-shaped electrode 5A side) of the electrode array 5. The driving roller 62 includes
A traveling driving means 66 (for example, one composed of a motor, a reduction gear, etc.) for rotating the water-permeable film 60 by rotating it is connected. Here, the roller-shaped electrodes 5A and 5O at both ends and the roller-shaped electrode 5H at the center in the electrode array 5 are grounded as in the embodiment of FIGS. 1 to 3, and the roller-shaped electrodes 5B to 5G and 5I to 5N. Figure 1
~ Power source 49 of the power feeding means 27 in the same relationship as the embodiment of FIG.
(See FIG. 3). Further, above the position on the driven roller 64 side with respect to the electrode array 5 (upper side of the water permeable film 60), the extrusion nozzle 47 of the supply means 45 is provided, and the endless annular water permeable film 60 circulates. A water supply pipe 51, which is a water supply means, is provided at an appropriate position inside the traveling and below the electrode array 5. The supply means 45 and the water supply means 51 are the same as those in the embodiment shown in FIGS. As the water-permeable film 60, cloth, cellophane film, or the like can be used as described above.

In the embodiment shown in FIGS. 9 and 10 as described above, the water-permeable film 60 is circulated by the traveling drive means 66 while being in contact with the roller-shaped electrodes 5A to 5O of the electrode array 5. Therefore, the water-permeable film 60
The fish meat paste 43 supplied in the form of a strip along with the water-permeable film 60 also moves continuously from the left side to the right side in the drawing. Then, if a high frequency voltage is applied from the power source 49 to each of the roller-shaped electrodes 5B to 5G and 5I to 5N of the electrode array 5, the fish meat from each of the roller-shaped electrodes 5B to 5G and 5I to 5N via the water-permeable film 60. A high-frequency current flows through the ground meat 43, and the fish meat ground 43 is electrically heated by Joule heat in the same manner as described above, and then transferred to the next step.

In the embodiments of FIGS. 9 and 10, the roller electrodes 5A to 5O do not necessarily have to be rotatably supported, and may be fixed in some cases.

11 and 12 show an embodiment in which the roller-shaped electrodes 5A to 5O of the electrode array 5 in the embodiments of FIGS. 9 and 10 are replaced by plate-shaped electrodes 50A to 50O. In this embodiment, the plate-shaped electrodes 50A, which are rectangular in plan view,
50O is arranged on a long plate-shaped insulating substrate 70 made of resin or the like at a predetermined interval so as to be parallel to each other and have a horizontal surface. A plate-shaped spacer 72 made of an insulating material is provided on the upper surface of the insulating substrate 70 between the plate-shaped electrodes 50A to 50O.
The plate-shaped electrodes 50A to 50O are set so that their surfaces are flush with each other. The plate-shaped electrodes 50A to 50O forming the electrode array 5 are grounded at the plate-shaped electrodes 50A and 50O at both ends and the roller-shaped electrode 50H at the center as in the above-described embodiments, and the plate-shaped electrode 50B in the middle. ~ 50
G, 50I to 50N are connected to the power source 49 of the power feeding means 27 in the same relationship as described above. The configuration of the other parts is exactly the same as the embodiment of FIGS.

In the embodiment shown in FIGS. 11 and 12, the water-permeable film 60 runs while slidingly contacting the surface of the plate electrodes 50A to 50O of the electrode array 5 and the spacer 72. Also in this embodiment, as in the case already described, the fish meat surimi supplied in a strip shape on the water-permeable film 60 can be electrically heated.

9 and 10, the spacers 72 between the plate electrodes 50A to 50O may be formed integrally with the insulating substrate 70, as a matter of course.

Furthermore, the embodiment of FIGS. 9 and 10 and FIG.
In any of the embodiments of FIG. 12, the water-permeable film 6
As for 0, one sheet is wound around the driving roller 62 and the driven roller 64. However, in some cases, as in the embodiment of FIGS. It is also possible to combine the water permeable film of No. 2 with a second water permeable film having a smooth surface such as cellophane.

Furthermore, the embodiment of FIGS. 9 and 10 and FIG.
In any of the embodiments of FIG. 1 and FIG.
3 is not limited to that used in the embodiment of FIG. 3, but may be any of the embodiments of FIGS. 5, 6, and 8.

The water-permeable film is not formed into an endless ring,
It can be configured so that it is fed from one side and wound on the other side.

The belt-shaped food product to which the present invention is applied is not limited to the fish meat paste, but may be other viscous belt food products such as livestock meat paste, spring rolls and gyoza skins, thinly baked eggs, bread dough, and pizza dough. good.

In the illustrated example, the supply means 45 is configured to extrude the food material before heating into a strip shape, but depending on the case, it may be separately formed into a strip shape by rolling or the like and supplied. You may.

[0077]

According to the strip-shaped food production apparatus of the present invention, when applying electric current heating to generate heat from the inside by applying an electric current to the strip-shaped food material itself such as fish meat surimi, the upstream side (food material supply The voltage applied to the band-shaped food material on the side) and the voltage applied to the band-shaped food material on the downstream side (discharging side) can be made different, so first heat up to a certain high temperature lower than the target temperature on the upstream side, It can then be heated relatively slowly downstream to the target temperature, which allows the maximum heating temperature for the band-shaped food material to be precisely controlled to the required target temperature, thus avoiding underheating or overheating. It is possible to surely prevent, and it is possible to effectively prevent the quality variation and defects of the band-shaped food product from occurring. And according to the device of the present invention, since the band-shaped food material is heated from the inside by electric heating,
Since the time required for heating is significantly shortened compared to the conventional steamer using high temperature steam, the total length of the equipment is longer than that of a conventional steamer using high temperature steam when heating while continuously running the band-shaped food material. It can be remarkably short, so that the installation space of the equipment can be saved and the required temperature can be accurately heated, so that the manufacturing cost can be reduced. Further, particularly in the device of the invention of claim 5, since the initial temperature of the strip-shaped food material supplied onto the electrode array can be detected and the voltage applied between the electrodes can be controlled according to the detected temperature, the temperature of the outside air can be controlled. Even if the initial temperature of the band-shaped food material changes due to changes etc.,
The band-shaped food product can be properly heated to a desired target temperature.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view taken along line XX of FIG.

FIG. 3 is a schematic diagram showing a power feeding means in the apparatus shown in FIG.

FIG. 4 is an explanatory diagram showing how the temperature of the band-shaped food material rises when the method of the present invention is carried out using the apparatus shown in FIGS. 1 to 3.

FIG. 5 is a schematic view showing a power feeding means of an apparatus according to another embodiment of the present invention.

FIG. 6 is a schematic view showing a power feeding means of an apparatus according to still another embodiment of the present invention.

7 is an explanatory diagram showing how the temperature of the band-shaped food material rises when the method of the present invention is realized using the apparatus shown in FIG.

FIG. 8 is a schematic view showing a power feeding means of an apparatus according to another embodiment of the present invention.

FIG. 9 is a partial cutaway plan view showing an apparatus according to another embodiment of the present invention.

10 is a vertical cross-sectional view taken along the line YY of FIG.

FIG. 11 is a partially cutaway plan view showing still another embodiment of the present invention.

12 is a vertical cross-sectional view taken along line ZZ of FIG.

FIG. 13 is a schematic diagram showing a power feeding means in the manufacturing apparatus for a band-shaped food product previously proposed by the inventor of the present application.

FIG. 14 is a partially enlarged vertical cross-sectional view of a main part of the device shown in FIG. 13 and the device of the embodiment of the present invention.

15 is an explanatory diagram showing how the temperature rises when the belt-shaped food product is electrically heated by the device shown in FIG.

[Explanation of symbols]

 5 Electrode array 5A-5O, 5P-5V Roller-shaped electrode 15 Rotation drive means 27 Feeding means 35 First water-permeable film 37 Second water-permeable film 43 Fish meat surimi (belt food material) 45 Supply means 49 Power supply 51 Water supply means 50A-50O Plate electrode 60 Water-permeable film 66 Traveling drive means 70 Insulating substrate 81,82,301 Voltage regulator 94 Temperature sensor 95 Temperature detection circuit 200 Transformer 402A-402D Constant current circuit

Claims (6)

[Claims] 1. An electrode array in which a plurality of roller-shaped electrodes each of which at least an outer peripheral surface is made of a conductive material are arranged in parallel and horizontally at a predetermined interval, and adjacent rollers in the electrode array. Power supply means for applying a voltage between the electrode strips; rotation drive means for rotating each of the roller electrodes; mounted on the electrode array and capable of traveling as the roller electrodes rotate. A water-permeable film; and a supply means for continuously supplying the food material in a belt shape on the water-permeable film at one end side of the electrode array; and the belt-shaped food material supplied on the water-permeable film. For each roller-shaped electrode, a current is passed through the water-permeable film through the water-permeable film, thereby producing a belt-shaped food product for electrically heating the belt-shaped food material, wherein the electrode array is from the food material supply side. It is divided into a plurality of groups each composed of a plurality of roller-shaped electrodes toward the flow side, and the power feeding means is configured so that different voltages can be applied to each group. Food manufacturing equipment. 2. An electrode array in which a plurality of electrodes are arranged so as to be parallel and horizontal to each other at a predetermined interval; a power supply unit for applying a voltage between adjacent electrodes in the electrode array; A water-permeable film disposed on the electrode array such that the water-permeable film can travel along the direction in which the electrodes are arranged; traveling drive means for causing the water-permeable film to travel along the direction in which the electrodes are arranged; Supply means for supplying the food material in a strip shape on the water-permeable film at one end side; and, for each belt-shaped food material supplied on the water-permeable film, from each electrode through the water-permeable film. In the apparatus for producing a band-shaped food product in which an electric current is passed and thereby the band-shaped food material is electrically heated, the electrode array is divided into a plurality of groups each including a plurality of electrodes from the food material supply side to the downstream side. It has been,
An apparatus for producing a band-shaped food product, wherein the power feeding means is configured to be able to apply a different voltage to each group. 3. The apparatus for producing a band-shaped food product according to claim 1, wherein the power feeding means includes a voltage regulator. 4. The power supply means includes a transformer having an intermediate tap in the secondary winding, and a voltage applied to an electrode of the group on the food material supply side and a voltage applied to an electrode of the group on the downstream side. The device for producing a band-shaped food product according to claim 1 or 2, characterized in that: 5. The supply means comprises temperature detection means for detecting the temperature of the strip-shaped food material, and the power supply means controls the voltage applied to the electrodes by a detection signal from the temperature detection means. The strip-shaped food production apparatus according to any one of claims 1 to 3, wherein the production apparatus is a strip-shaped food product. 6. When manufacturing a band-shaped food product using the manufacturing apparatus according to claim 1 or 2, the voltage applied to the electrode of the group on the food material supply side is applied to the electrode of the group on the downstream side. A method for producing a band-shaped food product, characterized in that the power supply means is controlled so as to be relatively higher than a voltage.