JP2003038106A - Method for producing heating molded product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a heating molded product, enabling efficient and high-safety heating by effectively suppressing or avoiding occurrence of concentration of radio-frequency energy during a process of molding raw materials prepared in plural molds which are continuously conveyed in wide-scale equipment by high-frequency heating. SOLUTION: This method for producing a heating molded product comprises the following process: dispensing raw material to be molded into an integral molds 5, continuously conveying plural molds each with the raw materials via a conveyor part 6 to transfer them to a heating zone B; wherein the heating zone B is divided into sub-zones b1, b2 respectively having electric power source parts 2a, 2b and electric power feeding parts 3a, 3b. In this process, occurrence of concentration of high-frequency energy can be suppressed or avoided because the heating zone B is divided into two while the material to be molded is heated and molded by applying high frequency wave to the integral molds 5 from the electric power feeding parts 3a, 3b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a hot-molded product which is molded by heating a molding raw material in a mold in which the molding raw material is charged.
In particular, the present invention relates to a method for producing a hot-molded product including a step of dielectrically heating a molding raw material by applying a high-frequency alternating current to a molding die.

[0002]

2. Description of the Related Art Conventionally, a technique for producing a molded article by using a molding die such as a die, dispensing a molding raw material (raw material) into the molding die, and then heating the molding die (hereinafter, referred to as Mold heating method) is widely used.

The technique of the above-mentioned molding die heating method is also widely used in the production of molded baked confectionery including edible containers such as cones, monaka, and wafers. In the technical field of manufacturing the above-mentioned molded baked confectionery, as a raw material, various starches as a main component are mixed with water, for example, dough having viscoelasticity (dough) or slurry-like dough having fluidity. Are used.

Further, the technical field of molding the above-mentioned water-containing raw material containing starch as a main component by a molding die heating method is also applied to the field of producing biodegradable molded articles in addition to molded baked confectionery. In the present specification, a heat-molded product obtained by heat-molding a water-containing raw material containing starch or the like as a main component, such as the above-mentioned molded baked confectionery and biodegradable molded product, is referred to as a baked product.

Here, in the molding die heating method, an external heating method has been used in the past, in which the raw material is heat-molded by heat conduction by simply heating the die. However, in this external heating method, since the molding time is long, the production efficiency is low, and “baking unevenness” occurs due to non-uniform temperature of the molding die, a uniform molded product cannot be obtained. Therefore, in recent years, a high-frequency heating method has been widely used as a specific heating method in the molding die heating method.

The high-frequency heating method is generally a method of dielectrically heating a raw material by applying a high-frequency alternating current (hereinafter abbreviated as high frequency) to a molding die (corresponding to a heating electrode). Therefore, there is an advantage that the raw material can be uniformly heated and molded, and heating control is easy. As a technique using this high-frequency heating method, specifically, for example, a method for producing a biodegradable molded article and an apparatus for producing the biodegradable molded article disclosed in Japanese Patent Laid-Open No. 10-230527 previously proposed by the present applicants. Is mentioned.

In the production of baked products such as molded baked confectionery, a continuous production process in which a large number of molds are sequentially moved and heated is generally used in order to improve production efficiency. In the technique of the above publication, in the continuous manufacturing process, a non-contact method in which a high frequency is applied to a heating electrode (that is, a mold) without directly contacting the electrode or the like is adopted.

For example, as shown in FIG. 24, in the manufacturing apparatus disclosed in the technique of the above publication, the die 7 is moved by the conveyor section (moving means / conveyor means) 6 arranged in an endless flat plate layout. In the heating zone (heating area) B, which is an area where dielectric heating is performed, a power feeding section (power feeding means) 3 is arranged along the conveyor section 6. Further, the mold 7 is provided with a power receiving portion (power receiving means) that corresponds to the power feeding portion 3 in a non-contact state (not shown in FIG. 24), and the power feeding portion 3 and the power receiving portion supply and receive high frequency power. Parts are formed.

Therefore, when the mold 7 containing the raw material is conveyed by the conveyor section 6 and reaches the heating zone B, a high frequency is applied to the mold 7 from the power feeding section 3 in a non-contact manner. The raw material in 7 is dielectrically heated. As a result, the raw material can be heated efficiently and reliably, so that a molded product having excellent moldability and physical properties can be manufactured. Further, since the power is supplied in a non-contact manner, it is possible to control the occurrence of a spark or the like in the power supply / reception unit.

[0010]

By the way, in the above-mentioned conventional technique, when a high frequency is collectively applied to the entire heating zone B, the high frequency is localized in a part of the heating zone B. Therefore, when the scale of the manufacturing apparatus is increased, the high frequency energy is concentrated due to the localization of the high frequency. As a result, the raw material is overheated at the localized portion of the high frequency, sparks or dielectric breakdown occurs between the molds 7 (electrode portions) at the localized portion, and even in the power supply / reception portion despite non-contact. Problems such as sparks occur.

That is, in a large-scale manufacturing apparatus, the entire apparatus becomes very large. In addition, from the viewpoint of increasing production efficiency, not only the above-mentioned large-scale configuration but also an integral mold in which a large number of molds 7 are arranged, for example, in parallel is often used and conveyed by the conveyor section 6. Therefore, the number of molds 7 conveyed to the heating zone B is considerably large.

Therefore, when the scale of the manufacturing apparatus is increased, the number of raw materials in the mold 7 is also increased significantly. Therefore, in the heating zone B, the high frequency output applied in proportion to the increase in the number of raw materials must be increased. I have to.

For example, a case where the scale of the manufacturing apparatus is small will be specifically described. For example, as shown in FIG. 24, 22 molds 7 are attached to the outer periphery of the conveyor section 6, and 11 molds are provided in the heating zone B. It is assumed that 7 can be heated. If the high frequency output of the power supply unit 2 at this time is set to 9 kW, the high frequency output applied to one die 7 is about 0.8 kW.

In this case, since the high frequency output of the entire heating zone B is not so large, even if the high frequency is localized at a specific position of the heating zone B, large high frequency energy will not be concentrated. Therefore, overheating, sparks, etc. do not particularly occur, and there is almost no effect on the production of the molded product. In other words, the technology disclosed in the above publication is very suitable for a small-scale manufacturing device.

On the other hand, when the manufacturing apparatus becomes large-scale,
Since the high frequency output of the entire heating zone also becomes very large, the high frequency energy concentrated in a part of the heating zone also increases. As a result, the high-frequency energy concentration phenomenon, which has hardly been a problem in a small-scale manufacturing apparatus, causes overheating, sparking, or even dielectric breakdown. Therefore, it is difficult to apply the technique of the above publication to a large-scale manufacturing apparatus.

More specifically, for example, as shown in FIG.
It is assumed that 25 individual molds 5 can be heated in the heating zone B by mounting them individually. This integrated mold 5
For example, assuming that five molds 7 are integrated, one mold 7 has about 0.8 molds as in the case of the small-scale manufacturing apparatus.
In order to apply the high frequency of kW, the output of the power supply unit 2 is 1
Must be set to 00 kW. Therefore, if simply calculated, in the above example, there is a possibility that high-frequency energy reaching 10 times or more that in the case of a small scale will be concentrated.

When the manufacturing apparatus becomes large in scale, the power feeding section 3 arranged in the heating zone B becomes longer than in the case of a small scale. For example, in FIG. 24, the number of the molds 7 is 11, but in FIG. 25, the number of the molds 7 (the integrated mold 5) is 25. Therefore, uneven distribution of the high-frequency potential is more likely to occur depending on the shape of the power feeding unit 3, so that it is practically difficult to provide the power feeding unit 3 having a length of a certain length or more. As a result, the efficiency of heat molding is significantly reduced.

The present invention has been made in view of the above problems, and an object thereof is to mold a raw material charged in a plurality of continuously moving molds by high-frequency heating in a large-scale facility. In doing so, it is an object of the present invention to provide a method for producing a hot-molded product, which effectively suppresses or avoids the occurrence of a high-frequency energy concentration phenomenon and realizes efficient and highly safe heating.

[0019]

In order to solve the above-mentioned problems, in the method for producing a hot-molded product according to the present invention, at least a conductive mold is charged with a molding raw material, and the mold is moved along a moving path. By continuously applying a high-frequency alternating current in a non-contact manner to the moving mold from a heating region provided along this moving path while continuously moving the mold along a plurality of In the method for producing a hot-molded product, which is formed by dielectric heating, the heating region is divided into a plurality of lower regions, and each of the lower regions is provided with at least the power supply unit and the power supply unit. There is.

According to the above method, when a high frequency alternating current (high frequency) is continuously applied in a non-contact manner to the continuously moving mold, a plurality of heating regions are regions to which the high frequency is applied. Is divided into lower regions, and a power supply unit and a power feeding unit are provided in each lower region. Therefore, it is possible to suppress or avoid the occurrence of the high frequency energy concentration phenomenon in the heating region. As a result, it is possible to effectively prevent the occurrence of overheating, dielectric breakdown, etc., and it is possible to manufacture a heat-formed product very efficiently and reliably.

The method for producing a heat-formed product according to the present invention is
In the above method, in the lower region, the high-frequency alternating current is applied to the molding die by rail-shaped power feeding means that are continuously arranged along the movement path, and the molding die is It is characterized in that power receiving means for receiving the high-frequency alternating current from the rail-shaped power feeding means in a non-contact manner is provided.

According to the above method, since the rail-shaped power feeding means is provided in the heating area and the power receiving means is provided so as to correspond to the rail-shaped power feeding means, the moving tool moves the molding die after entering the heating area. Along with the movement of the means, the mold having the power receiving means moves along the rail-shaped power feeding means. Therefore, the heating / drying process can be smoothly and reliably continued until the molding die passes through the heating region, that is, until the power receiving unit is detached from the power feeding unit.

The method for producing a heat-formed product according to the present invention is
In the above method, the power receiving unit is formed in a flat plate shape, and the rail-shaped power feeding unit has a facing surface facing the power receiving unit. The flat plate power receiving unit faces the facing surface. By doing so, a high-frequency alternating current is applied in a non-contact manner.

According to the above method, in a state where the flat power receiving means is opposed to the facing surface of the power supplying means in a non-contact manner,
The power receiving unit moves along the rail-shaped power feeding unit. At this time, a capacitor is formed by the power receiving unit, the facing surface facing the power receiving unit, and the space between them. As a result, it is possible to supply power to the continuously moving molds in a non-contact manner, and the heating / drying process can be smoothly and reliably continued.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means or power receiving means, along the moving path of the mold, so as to change the application level of the high frequency alternating current applied to the mold via the power receiving means, It is characterized in that the facing area is formed so as to change.

According to the above method, since the level of power supply is changed, the heating level of the mold can be adjusted. As a result, by suppressing excessive heating, it is possible to avoid charring and sparking of the molded product, improve the moldability of the molded product, and obtain desired finished product physical properties. In particular, since the stepwise heat treatment can be carried out at the first or last stage of the heat molding,
The molding raw material can be appropriately heat-molded.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means is formed so that the area of the facing surface changes along the movement path.

According to the above method, the area of the facing surface of the power feeding means is changed in accordance with the movement of the molding die, so that the facing area of the facing surface and the power receiving means is changed. Therefore, the capacity of the capacitor formed by the power receiving means, the facing surface, and the space between them also changes. As a result, it is possible to change the level of power supply to change the heating to the heat-molded product, and it is possible to improve the moldability of the heat-molded product and obtain the desired physical properties of the finished product.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means has a facing interval along the moving path of the molding die so as to change an application level of a high-frequency alternating current applied to the molding die via the power receiving means. It is characterized by being formed so as to change.

The above method also makes it possible to adjust the heating level of the mold by changing the power supply level. As a result, by suppressing excessive heating, it is possible to avoid charring and sparking of the molded product, improve the moldability of the molded product, and obtain desired finished product physical properties. In particular, since the stepwise heat treatment can be carried out at the first or last stage of the heat forming, the forming raw material can be appropriately heat formed.

The method for producing a heat-formed product according to the present invention is
In the above method, the length of the lower region is set such that the variation rate of the continuously moving mold heated in the entire lower region is less than 0.5. .

According to the above method, since it is possible to reduce the variation in the number of molds for dielectrically heating by applying a high frequency alternating current in one lower region, it is possible to stabilize high frequency tuning. Therefore, the increase / decrease in the anode current value can be reduced. As a result, not only energy efficiency can be improved, but also spark generation can be avoided.

The method for producing a heat-formed product according to the present invention is
In the above method, when the lower region corresponds to a region corresponding to at least one of an initial stage and a final stage of heating the forming raw material, the variation rate of the continuously moving mold is 0. It is characterized in that the length of the lower area is set so as to be less than 0.1.

According to the above method, it is possible to reduce the variation in the number of molds for dielectric heating, especially in the initial stage and final stage of the heat molding, in which the tuning of the high frequency tends to be unstable. Therefore, it is possible to further stabilize the high frequency tuning, and as a result, it is possible to further improve the energy efficiency and more surely avoid the occurrence of sparks.

The method for producing a heat-formed product according to the present invention is
In the above method, the molding die is composed of a plurality of mold pieces, and the plurality of mold pieces can be divided into a block of a feed electrode to which power is fed from a power feeding means and a block of a ground electrode which is grounded. Each of these blocks is characterized by being insulated from each other.

According to the above method, the mold comprises a combination of the feed electrode and the ground electrode which are insulated from each other. Therefore, it is possible to perform dielectric heating on the forming raw material by applying a high frequency from the supplying electrode while sandwiching the forming raw material between the supply electrode and the ground electrode. Moreover, the molding die is composed of a plurality of mold pieces, and can be divided into a block of the feed electrode and a block of the ground electrode without fail. Therefore, by applying a high frequency to the molding raw material that is the object to be heated, the molding raw material can be reliably dielectrically heated.

The method for producing a heat-formed product according to the present invention is
In the above method, the molding die is an integral molding die formed by integrating a plurality of molding dies.

According to the above method, since a large number of molding dies are integrated into one molding die, a large number of molding dies can be moved to the heating region at one time. As a result, the production efficiency of the molded product can be improved.

The method for producing a heat-formed product according to the present invention is as follows:
In the above method, at least a part of the heating region is characterized in that dielectric heating by applying the high-frequency alternating current and external heating by an external heating unit are used in combination.

According to the above method, dielectric heating and external heating are used together in at least a part of the heating region, so that the molding raw material is rapidly heated by dielectric heating and external heating is used. Gradual heating due to heat conduction will be performed at the same time. As a result, the forming raw material can be heated more reliably and sufficiently. In particular, when the present invention is used for baking shaped baked confectionery, which will be described later, it is preferable because it can give an appropriate baking color, roast odor, etc. to the molded baked confectionery when used in combination with external heating.

The method for producing a heat-formed product according to the present invention is
In the above method, the heating region further includes a high frequency application suspension region for temporarily suspending application of the high frequency alternating current.

According to the above method, since the heating region includes the high frequency application suspension region, it is not necessary to provide a power feeding means or the like for applying a high frequency in this region. Therefore, it is possible to design the heating equipment so that the high frequency is not applied to the site where the alternating current is likely to be localized, so that the occurrence of the high frequency energy concentration phenomenon can be suppressed or avoided more reliably. Moreover, the structure of the heating equipment can be further simplified by setting the high-frequency application suspension region in a region where it is relatively difficult to arrange the power feeding means and the like.

Further, when the dielectric heating and the external heating are used together, in the high frequency application suspension region, the gentle heating is performed only by the external heating. Therefore, by setting the high frequency application suspension region according to the characteristics of the molding raw material, it is possible to improve the moldability and obtain desired physical properties of the finished product.

Further, by setting the high frequency application pause region in the portion where the electrical characteristics of the forming raw material change most drastically,
The high frequency energy concentration phenomenon can be avoided.
In addition, a gentle heat treatment can be performed only by external heating in the preceding stage of the lower region to which the highest output high frequency is applied in the heating region. Therefore, the molding raw material can be appropriately heat-molded.

The method for producing a heat-formed product according to the present invention is
In the above method, the high frequency application suspension region included in the heating region is set to a region corresponding to at least one of an initial stage and a final stage of heating the forming raw material.

According to the above method, the high frequency application pause region is provided in at least one of the initial stage and the final stage of the heat molding, so that heating according to the forming raw material becomes possible.
As a result, improving the quality of the obtained heat-molded product,
Productivity can be improved.

The method for producing a heat-formed product according to the present invention is as follows:
The above method is characterized in that, in the heating region, the conditions for applying the high-frequency alternating current to the forming die in the respective lower regions are set to be different from each other.

In the above method, since the high frequency wave is applied to each lower region under different conditions, heating can be performed under different conditions in each lower region. Therefore, it is possible to set the application conditions that can suppress or avoid the concentration of high-frequency energy in the entire heating region, and it is also possible to heat the molding die under better conditions, so that the molding raw material can be heat-molded more appropriately. can do.

The method for producing a heat-formed product according to the present invention is as follows:
In the above method, the application conditions of the high frequency alternating current include the output of the high frequency alternating current in the entire lower region, the output of the high frequency alternating current applied to one molding die, and the length of the lower region. It is characterized in that at least one of them is included.

According to the above method, if at least one of the above conditions is set to be different in each lower region, the heating condition in the lower region can be changed.
As a result, not only the concentration of high-frequency energy can be suppressed or avoided, but also the forming raw material can be heated and formed more appropriately.

The method for producing a heat-formed product according to the present invention is
In the above method, the condition for applying the high-frequency alternating current is set according to the characteristics of the forming raw material that changes with the application of the alternating current.

According to the above method, it is possible to apply an alternating current to each lower region under different conditions depending on the properties of the molding raw material and the molded product obtained by heating. Therefore, not only the concentration of high-frequency energy can be suppressed or avoided, but also the amount of heat can be more appropriately applied to the forming raw material, and the forming raw material can be heat-formed more appropriately.

The method for producing a heat-formed product according to the present invention is
In the above method, a starchy hydrous material containing at least starch and water and having fluidity or plasticity is used as the molding raw material, and a fired product is produced as a hot-molded product. .

According to the above method, since the method for producing a heat-formed product according to the present invention is used when a fired product is produced by heat-forming the hydrous raw material containing the starch and water, a high-quality fired product is used. Can be manufactured with high production efficiency.

The method for producing a heat-formed product according to the present invention is
In the above method, wheat flour is used as the starchy material of the starchy water-containing raw material, and the baked product is
It is characterized by being a molded baked confectionery consisting mainly of wheat flour.

According to the above method, when a starchy water-containing raw material using wheat flour as a starch material is baked to produce a molded baked confectionery such as an edible container, a cookie, or a biscuit, the heat-formed product according to the present invention. Since the manufacturing method is used, high quality molded baked confectionery can be manufactured with high production efficiency.

The method for producing a heat-formed product according to the present invention is as follows:
In the above method, a conveyor means rotatably stretched around a plurality of support shafts is used as the moving means.

According to the above method, the molding die can be efficiently moved to the heating region, so that the production efficiency of the molded product can be improved. Further, since it can be continuously rotated and moved like an endless track, it is possible to reduce the installation space of the manufacturing equipment.

[0059]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] The following will describe one embodiment of the present invention with reference to FIGS. The present invention is not limited to this.

The method for producing a heat-formed product according to the present invention is as follows:
While continuously moving a plurality of molding dies charged with molding raw materials sequentially, pass through a region (heating zone) where a high-frequency alternating current is applied, where dielectric heating is generated in the molding raw materials to perform heat molding. However, in particular, the heating zone is further divided into a plurality of subzones, and a power supply unit (oscillator) is provided for each subzone.

The application of the present invention is to apply a high-frequency alternating current to dielectrically heat a molding raw material to heat-mold it, particularly to efficiently produce a plurality of hot-molded products continuously. If it is not particularly limited as long as it is, for example, as the above-mentioned application, edible containers such as ice cream serving cones and the inside, or cookies, biscuits, shaped baked confectionery such as wafers baked into a certain shape, Alternatively, the use of a biodegradable molded product containing starch as a main component for producing a large amount and efficiently can be particularly preferably mentioned.

In the following description, a molded product obtained by heating and molding a starchy water-containing raw material containing starch as a main component, such as the molded baked confectionery and the biodegradable molded product, is referred to as a baked product. Further, in the present embodiment, as will be described later, since the molding die is a conductive electrode and the molding raw material is a water-containing raw material containing water as described above, a high-frequency alternating current is applied. As a result, dielectric heating occurs, and at the same time, electric current flows directly through the water-containing raw material to carry out electric heating to raise the temperature of the water-containing raw material. Therefore, the term "dielectric heating" used in the following description includes not only the above-mentioned narrowly defined dielectric heating but also the above-mentioned electric heating performed at the same time.

In the present embodiment, the present invention will be described in detail by taking as an example the case where the present invention is applied to the use for producing the above-mentioned fired product. Moreover, in the following description, the manufacturing method and the manufacturing apparatus of the heat-molded product are appropriately abbreviated as the manufacturing method and the manufacturing apparatus. Further, high frequency alternating current is also abbreviated as high frequency as appropriate. Further, the heat-molded product is simply abbreviated as the molded product.

As shown in the schematic circuit diagram of FIG. 2, the manufacturing apparatus used in this embodiment includes a heating section 1 and a power source section (power source means) 2. The heating unit 1 includes a power feeding unit 3 and a plurality of molds (molding dies) 7 corresponding to the power feeding unit 3, and the power supply unit 2 includes a high frequency generating unit 21, a matching circuit 22, and a control circuit 23. . A molding raw material 14 is charged in the mold 7. For convenience of explanation,
In FIG. 2, only one mold 7 is shown.

The high-frequency generator (oscillator) 21 is not particularly limited in its specific constitution as long as it can generate a high-frequency alternating current. Can be used. The matching circuit 22 and the control circuit 23 may be included in this oscillator.

As the matching circuit 22, for example, a configuration including a variable capacitor or a variable coil can be mentioned. The matching circuit 22 can obtain the optimum output and tuning of the high frequency by changing its capacitance and inductance according to the molding raw material 14 to be heated. As the specific configuration of the variable capacitor and the variable coil, conventionally known ones are used and are not particularly limited. Further, the configuration of the matching circuit 22 is not limited to the above configuration including the variable capacitor and the variable coil.

The control circuit 23 is not particularly limited as long as it can appropriately control the output of the high frequency to the heating section 1, that is, the application of the high frequency to the heating zone described later, and the conventionally known control means. Can be used.

The mold 7 included in the heating unit 1 can be divided into a pair of electrode blocks 12 and 13, and a molding raw material 14 as an object to be heated is placed between the electrode blocks 12 and 13. It is pinched. As will be described later, the electrode block 12 is provided with the power receiving unit 4, and the power receiving unit 4 and the power feeding unit 3 constitute the power receiving / receiving unit 11. The electrode blocks 12 and 13 are arranged so as to be insulated from each other, and the high frequency applied through the power supply / reception unit 11 causes dielectric heating of the forming raw material 14.

Of the electrode blocks 12 and 13, the electrode block 12 is a power supply electrode connected to the power supply / reception unit 11, and the electrode block 13 is a ground electrode connected to the ground. The specific configuration of the supply electrode and the ground electrode, that is, the electrode blocks 12 and 13 is not particularly limited as long as they are combined to form a mold having one conductivity. ,
Generally, a mold 7 made of various metals is used. The specific shape of the mold 7 is not particularly limited, and a shape corresponding to the shape of the molded product is used.

In other words, as the conductive mold used in the present embodiment, the mold 7 is preferably used, and the mold 7 has the above-mentioned feed electrode regardless of its specific shape. Also, it can be divided into two electrode blocks 12 and 13 so as to correspond to the ground electrode.

Specifically, for example, if the molded product is a cup cone for serving ice cream or soft ice cream, as shown in FIGS. 3 (a) and 3 (b), a plurality of (5 in the same figure) cones are used. It is possible to use an integrated mold (integral molding mold) 5 in which the molding dies 7 are integrated and arranged in a line. As shown in FIG. 3 (b), the integrated mold 5 includes an inner mold piece 5a for molding the inner surface of the cup cone and two outer mold pieces 5b for molding the outer surface of the cup cone.
5b is divided into a total of 3 pieces. The inner mold piece 5a is formed in a substantially conical shape corresponding to the inner space of the cup cone, but the outer mold pieces 5b and 5b are formed.
Is divided into two parts along the longitudinal direction of the cup cone so that the cup cone having a conical shape and long in one direction can be easily taken out.

As described above, in the structure shown in FIGS. 3A and 3B, the integrated mold 5 has three parts because of the removal of the cup cone.
In this case as well, the inner mold piece 5a corresponds to the feed electrode block (electrode block 12) and the two outer mold pieces 5b and 5b serve as the ground electrode block (electrode block 13). Correspondingly, it is divided into two blocks. Further, a plate-shaped power receiving portion 4 is provided on the inner mold piece 5 a so as to correspond to each mold 7.

Alternatively, as shown in FIGS. 4 (a) and 4 (b), when a flat plate-shaped molded product is obtained, a plurality of (3 in FIG.
One example is an integrated mold 5 having a configuration in which (piece) flat molds 7 are integrated and arranged in a row. In this configuration, since the upper mold piece 5c and the lower mold piece 5d are combined, the upper mold piece 5c is placed on the feed electrode block (electrode block 12) and the lower mold piece 5d. 5d corresponds to the block of the ground electrode (electrode block 13). A plate-shaped power receiving unit 4 is provided on the upper mold piece 5c so as to correspond to each mold 7.

As described above, the integrated die 5 (or die 7) which also serves as the electrode blocks 12 and 13 used in the present invention.
Since a large number of molds 7 are integrated into one integrated mold 5, a large number of molds 7 can be simultaneously added to the heating zone.
Can be moved. As a result, the production efficiency of the molded product can be improved.

The integral mold 5 may be composed of three or more mold pieces depending on the shape of the molded product and the method of taking out the molded product after molding. It can be divided into a block (electrode block 12) and a ground electrode block (electrode block 13) without fail.
As a result, the forming raw material 14 (hereinafter abbreviated as raw material) 4
A high frequency can be surely applied to.

Since the integrated die 5 serves as the electrode blocks 12 and 13 of the molding die 7, a high frequency is applied. Therefore, the block of the supply electrode (electrode block 12) and the block of the ground electrode (electrode block 13) that form the integrated mold 5 do not come into direct contact with each other with the raw material 14 interposed. Specifically, the insulating section 50 is provided between these blocks. The insulating part 50 is not particularly limited as long as it prevents contact between the supply electrode block and the ground electrode block, but various insulators are generally used. Alternatively, a space may be formed instead of the insulator.

The integrated mold 5 in the present embodiment may be provided with a steam vent (not shown) for adjusting the internal pressure. In the fired product obtained by heating and molding a starch-containing water-containing raw material, which will be described later, since the dough as the raw material 14 contains starch and water, steam is discharged out of the mold 7 as the heating and molding progresses. However, depending on the shape of the mold 7, steam may not be discharged. Therefore, by providing the steam releasing portion in the mold 7, the steam can be released to the outside of the mold 7 and the internal pressure can be adjusted well. The specific structure of the vapor venting portion is not particularly limited, and may be any shape, size, number, and formation position that allows vapor to escape uniformly and efficiently to the outside of the mold 7. .

Further, depending on the properties of the raw material 14 and the molded product, the entire heating unit 1 including the integrated mold 5 is a chamber, and the inside can be decompressed by a vacuum pump. Good.

In the present embodiment, as described above, the molded product produced by applying the present invention is a baked product such as a molded baked confectionery or a biodegradable molded product including an edible container such as a corn. There is. The specific shape of the fired product is not particularly limited, and various shapes depending on the application of the fired product can be mentioned. Of course, the molded product is not limited to the fired product, and other molded products may be used.

For example, as the above cone, FIG.
Examples thereof include a conical cup cone 8a as shown in (a) and (b), and a flat disk-shaped waffle cone 8b as shown in FIGS. 6 (a) and (b). The specific size of these cones is also not particularly limited.

Alternatively, as the above biodegradable molded article,
As shown in FIGS. 7 (a) and 7 (b), a flat tray 8c having a quadrangular shape and an edge portion formed on the periphery thereof can be mentioned, but the tray 8c is not limited to this. In particular, in the case of a biodegradable molded product, unlike the edible container such as the above-mentioned corn, its use has a wide variety of uses, and therefore its shape becomes more various.

The raw material 14 of the fired product is also not particularly limited. In the present embodiment, starch is the main component, and various subcomponents are added according to other uses, and by adding and mixing these in water, plastic dough-like or fluid slurry-like It is possible to preferably use the starchy water-containing raw material.

For example, in the case of a molded baked confectionery containing an edible container such as the above-mentioned corn, wheat flour is generally used as the starch component of the above main component, and other starch such as corn starch can also be used. Further, as additives, various additives such as seasonings such as salt and sugar, emulsifiers such as fats and oils, flavors, colorants, stabilizers, puffing agents, thickeners, flavor enhancers can be used, These subcomponents are
It is appropriately selected according to the type of molded baked confectionery and is not particularly limited.

Similarly, in the case of the above-mentioned biodegradable molded product, various starches as main components, fillers such as diatomaceous earth and cellulose, binders such as various gums, release agents such as various oils and fats, and colorants. And the like can be added as subcomponents, but are not particularly limited. Further, as the starch component of the main component, not only ordinary plant-derived starch (purified starch) and processed agricultural products (crude starch) containing starch such as wheat flour but also chemically treated starch such as cross-linked starch are used. It is also possible to use the chemically modified starch thus obtained.

In the present invention, for example, in order to mold the above-mentioned molded product, the mold 7 in which the raw material 14 is dispensed (integral mold 5)
It is designed to be heated continuously while moving. Therefore, the integrated mold 5 can be continuously moved by the moving means. The moving means is not particularly limited, but a conveyor unit (conveyor means) typified by a belt conveyor is particularly preferably used from the viewpoint of productivity of the molded product.

In the present embodiment, for example, as shown in FIG. 8, a belt-like conveyor which is stretched in a substantially flat plate shape by at least two support shafts 15a and 15b and is rotatable like an endless track. Part 6 is used. The direction in which the conveyor unit 6 is stretched is not particularly limited, but in the present embodiment,
It is stretched along the horizontal direction. When the conveyor unit 6 having such a configuration is used, the integrated mold 5 can be efficiently moved to the heating zone, so that the production efficiency of the fired product is further improved. Further, since it can be continuously rotated like an endless track, the installation space of the manufacturing apparatus can be reduced.

In the following description, the layout of the conveyor section 6 stretched as shown in FIG. 8 is an endless flat plate layout. Further, the layout of the arrangement of the conveyor unit 6 is not limited to the above-mentioned endless flat plate, and may be rotatably stretched around a plurality of support shafts.

In the manufacturing apparatus used in this embodiment,
A plurality on the entire outer peripheral surface of the conveyor section 6 (36 in FIG. 8)
The integrated mold 5 is attached. The integrated mold 5
Multiple molds 7 are arranged in a line (5 in FIG. 8)
Therefore, they are attached to the outer peripheral surface of the conveyor section 6 so that their longitudinal directions are parallel to each other. The conveyor section 6
Is not particularly limited, and it can withstand the temperature rise of the integrated mold 5 due to heating, and the integrated mold 5 is attached to the entire outer peripheral surface of the integrated mold 5. Any structure may be used as long as the mold 5 can be transported smoothly.

The method for producing a molded article to which the present invention is applied includes at least the following three steps. That is,
Raw material injecting step of injecting the raw material 14 into the die 7 (integral die 5), heating step of applying high frequency to the die 7 (integral die 5) in which the raw material 14 is injected to cause dielectric heating and heat molding , And a molded product take-out step of taking out a molded product from the mold 7 (integrated mold 5) that has been subjected to the heat molding. Therefore, also in the manufacturing apparatus having the layout shown in FIG. 8, a region where each of these steps is performed, that is, a process zone is set in advance.

In the endless flat plate-like conveyor section 6 as shown in FIG. 8, the raw material injection zone A is set in the upper region of the end on the support shaft 15a side (the end on the right side in FIG. 8). The heating zone B is set in a region on the downstream side in the rotation direction of the conveyor unit 6 (direction of the arrow in the figure), which is a large part of the outer periphery of the conveyor unit 6 sandwiching the end on the support shaft 15b side, Further, on the downstream side thereof, a molded product take-out zone C is set in a region connected to the raw material injection zone A below the end portion on the support shaft 15a side.

At least the heating zone B shown in FIG.
It suffices to have a high-frequency heating means for applying a high-frequency wave to the integrated die 5 to cause dielectric heating, but depending on the type of the raw material 14, an external heating means may be provided. Is preferably provided.

As the external heating means, heat is applied from the outside of the integrated mold 5 so that the integrated mold 5 can perform heat conduction.
The material 14 is not particularly limited as long as it can be heated. In general, as shown in FIGS. 9A and 9B, the gas heating unit 9 provided along the shape in which the conveyor unit 6 is stretched over the entire heating zone B is provided. Can be mentioned.

In the external heating, the raw material 14 is heated by heat conduction by heating the integrated mold 5 from the outside and keeping the temperature of the integrated mold 5 (mold temperature) constant. . Therefore, as shown in FIGS. 9A and 9B, not only is the gas heating unit 9 arranged on the outer peripheral side of the conveyor unit 6, but also the inside of the conveyor unit 6 as shown in FIG. 9B. It is very preferable that the gas heating unit 9 is also arranged on the circumferential side. As a result, external heating is performed from the vertical direction of the integrated mold 5, so that more uniform heating is possible.

As the gas heating unit 9, a conventionally known structure used for manufacturing a fired product can be preferably used, and its specific structure is not particularly limited. 9 (a) and 9 (b), the gas heating unit 9
For convenience of clarifying the arrangement state of the power feeding unit 3 as in FIG.
Is not listed.

In the present invention, in particular, when the molded product is a baked baked confectionery containing the edible container or the like, it is preferable to use not only dielectric heating but also external heating in the heating zone B.

When the dielectric heating and the external heating are used together in the heating zone, in the starchy water-containing raw material as the raw material 14, the raw material 14 itself derived from the dielectric heating is rapidly heated and the external heating is generated. Gradual heating due to heat conduction will be performed at the same time. As a result, not only can the starchy water-containing raw material be heated more reliably and sufficiently, but the external heating is also used to “bake” (calcin) the starchy water-containing raw material.
It is preferable because various properties can be given to the molded baked confectionery.

Specifically, the various characteristics described above include, for example, the texture state of the molded article, the state of expression of the effect of the additive,
Examples of the firing state include, but are not limited to. The level at which these various characteristics are given varies depending on the balance between the dielectric heating and the external heating. The control of the balance of each heating varies depending on the type of the raw material 14 and the like. And is not particularly limited.

Examples of the texture of the above-mentioned molded product include the thickness of the surface texture, the fineness of the internal texture, the state of the internal bubble wall, and the traces of deposits. In general, when the ratio of external heating to dielectric heating is low, that is, when the ratio of dielectric heating is high, the surface layer structure becomes thin, the internal structure becomes fine, the internal bubble wall becomes thin, and the depot trace becomes thin. On the contrary, when the ratio of the external heating to the dielectric heating is high, the surface layer structure becomes thick, the internal structure becomes rough, the internal bubble wall becomes thick, and the deposit mark becomes thick.

As the state of manifestation of the effect of the above-mentioned additive, for example, the manifestation of the effect of a coloring agent or a fragrance can be mentioned. For example, in the case of an edible container, a red colorant is often added to a starchy water-containing raw material to develop the color of the edible container after baking. However, if the ratio of dielectric heating is high, a slightly brownish red color develops. Therefore, a good coloring effect is exhibited. On the other hand, when the ratio of external heating is high, the colorant is apt to discolor and a coloring failure is likely to occur. In the case of the above-mentioned red colorant, red color cannot be satisfactorily developed, resulting in a dark brown color. Further, in the case of adding a fragrance, a good flavor remains when the ratio of dielectric heating is high, but when the ratio of external heating is high, the remaining condition of the flavor may be caused by deterioration or evaporation of the aroma component contained in the fragrance. become worse.

As the above-mentioned baked state, generally, a baked color and roasted odor can be mentioned. In other words, in the fired state, the appropriate "burnt color" and "fragrance" due to firing
Whether or not can be obtained. When the ratio of dielectric heating is high, the firing color and roast odor are light, but when the ratio of external heating is high, the firing color and roast odor are dark.

The external heating temperature by the gas heating section 9 is appropriately changed depending on the type of the raw material 14 and the like, and is not particularly limited. For example, in the case of the above-mentioned molded baked confectionery, the heating temperature is to be controlled on the basis of the mold temperature, and the mold temperature is generally 1
External heating is preferably performed within the range of 10 ° C. or higher and 230 ° C. or lower, and the mold temperature is appropriately set within the above range depending on the target properties of the molded product.

In the present invention, the heating zone B is provided with a high frequency heating means for applying a high frequency to cause dielectric heating, and the high frequency heating means includes a power source section 2 and a power feeding section (power feeding means) 3. I'm out. Further, as described above, the integrated mold 5 is provided with the power receiving unit (power receiving unit) 4 for continuously receiving the high frequency from the power feeding unit 3 during the movement. The power supply unit 3 and the power receiving unit 4 form the power supply / reception unit 11 (see FIG. 2).

A more specific structure of the power feeding section 3 is not particularly limited, but is made of a conductive material such as metal, as shown in FIG. 10 (b). An example is a shape having a U-shaped cross section (or a substantially U shape) with a recess 31 in the center. In other words, the rectangular plate-like member is bent along two fold lines parallel to the longitudinal direction so as to form the side surface portions 32, 32 facing each other and the upper surface portion 33 connecting the side surface portions 32, 32 to each other. An example is a shape formed in a V-shaped cross section.

On the other hand, the more specific structure of the power receiving section 4 corresponding to this is not particularly limited as long as high frequency power can be received in a contactless manner with the power feeding section 3. , For example, FIGS. 10 (a), (b), and (c).
As shown in FIG. 3, there may be mentioned a flat plate-like structure in which the side surface portions 32, 32 facing each other are sandwiched in a non-contact manner. The power receiving unit 4 may be made of a conductive material such as metal, like the power feeding unit 3.

Here, since the power feeding section 3 is provided along the entire heating zone B along the shape in which the conveyor section 6 is stretched, the rail having a U-shaped cross section. It can also be said that they are arranged in a shape configuration. The power receiving unit 4 is connected to the electrode block 12 in a shape corresponding to the rail-shaped power feeding unit 3.

For example, FIGS. 10 (a), (b), and (c)
As shown in FIG. 5, in the integrated mold 5, the power receiving unit 4 is provided on the mold piece (the internal mold piece 5a or the upper mold piece 5c) that serves as a block (electrode block 12) of the supply electrode. Specifically, FIG. 3 (a) / (b) or FIG. 4 (a)
In the integrated mold 5 having the configuration shown in (b), the power receiving unit 4 is provided for each of the five or three molds 7 forming the integrated mold 5. Further, in this case, the power feeding unit 3
Are also arranged in parallel so as to correspond to the individual molds 7.

Further, as shown in FIGS. 3 (a) and 3 (b), when the integrated mold is composed of five molds 7 ... As shown in FIG. 11 (a), rail-shaped power feeding is performed. The parts 3 are also arranged in parallel in five rows.

Alternatively, since the integrated mold 5 has five molds 7 integrated with each other, as shown in FIG. 11 (b), for example, only the central mold 7 is provided with the power receiving section 4, and the other molds 7 are provided. It is also possible to configure the integrated mold 5 so that a high frequency is applied to the four molds 7. In this case, since the rail-shaped power feeding unit 3 needs to be arranged in only one row, the structure of the manufacturing apparatus can be simplified.

As described above, in the present embodiment, the power supply / reception unit 11 is configured by the combination of the rail-shaped power supply unit 3 and the flat plate-shaped power reception unit 4 forming the U-shaped cross section. . Therefore, when the integrated mold 5 enters the heating zone B by the conveyance of the conveyor unit 6, the flat power receiving unit 4 is not placed in the recess 31 (between the facing side portions 32, 32) of the rail-shaped power feeding unit 3. It is caught by contact. Then, the power receiving unit 4 moves along the rail-shaped power feeding unit 3 (the direction of the arrow in FIGS. 10A and 10C) along with the conveyance of the conveyor unit 6.

At this time, in the concave portion 31 of the power feeding portion 3, a capacitor is formed by the power receiving portion 4, the side surface portions 32 and 32 sandwiching the power receiving portion 4, and the space between them. As a result, power supply from the power supply unit 2 to the integrated mold 5 is started, and heating / drying processing is started by dielectric heating. After that, heating is performed until the integrated mold 5 leaves the heating zone B, that is, until the power receiving portion 4 is detached from the concave portion 31 of the power feeding portion 3.
The drying process can be smoothly and surely continued.

In other words, in the present invention, the power receiving section 4 has a flat plate shape, and the power feeding section 3 has a facing surface that faces the power receiving section 4. It is preferable that a high-frequency alternating current is applied in a non-contact manner by facing the facing surface. It is more preferable that side surfaces 32, 32 facing each other are provided as the facing surfaces. Therefore, the power feeding section 3 may not have a U-shaped cross section, but may have a flat plate shape having only one side surface section 32.

The specific configurations of the power feeding unit 3 and the power receiving unit 4 are not limited to those described above.
That is, the shapes of the power feeding unit 3 and the power receiving unit 4 may be appropriately changed according to the composition of the raw material 14 and the final shape of the molded product,
The method of generating dielectric heating may be changed by including other members. For example, an action of a capacitor may be further improved by disposing an insulator between the power receiving section 4 and the side surface sections 32.

Therefore, the non-contact power feeding in the present invention means the power feeding section 3 and the power receiving section 4 (that is, the electrode block 1).
2) It does not have to be in direct contact with. If the power supply / reception unit 11 is configured to supply power in a non-contact manner as described above, the electrodes do not come into direct contact with each other, so that it is possible to avoid the occurrence of sparks or the like in the heating zone.

In the manufacturing apparatus used in this embodiment,
As shown in FIG. 1, an integrated die 5 (for example, for the cup cone 8a shown in FIGS. 3A and 3B) is provided on the outer peripheral surface of the conveyor section 6 (see FIG. 8) arranged in an endless flat plate layout. An integral mold 5) is attached to the entire surface. Further, at a position corresponding to the heating zone B on the conveyor section 6, a rail-shaped power feeding section 3 (FIG.
(See FIG. 11). And the conveyor section 6
By the rotational movement of the above, the integrated mold 5 moves in the direction of the arrow in the drawing (counterclockwise direction in FIG. 1), and heating is started when the heating zone B is reached.

Here, in the present embodiment, as shown in FIG. 1, in the heating zone B as a whole, 25 integrated molds 5 are provided.
It is assumed that a high frequency can be applied to it, and preferably external heating is also possible by the gas heating unit 9 shown in FIG. Therefore, the total lengths of the power feeding section 3 and the gas heating section 9 provided in the heating zone B are the length of 25 pieces of the integrated mold 5.

Since the integrated mold 5 is for the cup cone 8a shown in FIGS. 3 (a) and 3 (b), the heating zone B
As a whole, it is possible to heat 125 molds 7 ... Further, it is assumed that the high frequency output of the power supply unit 2 at this time is set to 100 kW in the entire heating zone B. Therefore, the output of the high frequency applied to one die 7 is 0.8 kW.

Further, in the present invention, the high frequency heating means provided in the heating zone B is divided into a plurality of parts. That is, the heating zone B is provided with a plurality of high-frequency heating means including the power source section 2 and the power feeding section 3, and these plurality of high-frequency heating means collectively form one heating zone B.

In the configuration shown in FIG. 1, the heating zone (heating area) B is divided into two sub-zones (lower areas) b1 and b2, and the power supply sections 2a and 2b and the power feeding section are provided in each of the sub-zones b1 and b2. 3a and 3b are provided. Specifically, the upstream side in the rotational movement direction of the conveyor section 6 is the subzone b1, and the downstream side is the subzone b2.

As described above, in the case of a large-scale manufacturing apparatus in which 125 molds 7 are subjected to the heating process, the output of the high frequency generator 21 is, for example, 100 as described above.
It is a very large value of kW. Further, since the conveyor section 6 has an endless flat plate-like layout, the heating zone B is arranged so as to wrap around the end of the conveyor section 6 on the support shaft 15b side, and therefore becomes longer. Therefore, when a high frequency wave is applied, the high frequency wave is likely to be localized at a specific position, and thus a phenomenon in which large high frequency energy is concentrated at a specific position is likely to occur.

Moreover, as described above, when the raw material 14 is a water-containing raw material containing water, the electrical characteristics of the raw material 14 change significantly due to changes in the amount of water accompanying heating. for that reason,
The change in the electrical characteristics of the raw material 14 also facilitates localization of high frequencies. Therefore, the phenomenon of high-frequency energy concentration is even more likely to occur.

When the high frequency energy concentration phenomenon occurs, excessive heating (overheating) is applied to some of the integrated molds 5.
And the moldability of the raw material 14 decreases, and the physical properties of the obtained molded product deteriorate.
Furthermore, since the output of the high frequency generator 21 is originally large, the concentration of high frequency energy may cause not only overheating but also spark generation and even dielectric breakdown.

In the prior art, since the scale of the manufacturing apparatus was small (see FIG. 24), there was no problem even if the high-frequency energy was concentrated, but when the manufacturing apparatus was enlarged in order to improve the production efficiency. However, the above problems occur.

On the other hand, in the present invention, the heating zone B
Is divided into, for example, two subzones b1 and b2, and the high frequency output in each subzone b1 and b2 is also divided from the overall output. Therefore, it is possible to effectively suppress or avoid the occurrence of the high frequency energy concentration phenomenon as described above, and it is possible to prevent the occurrence of phenomena such as overheating and dielectric breakdown.

In the example shown in FIG. 1, the heating zones B are sub-zones b of equal length and of equal power output.
It is divided into 1 and b2. Specifically, heating zone B
Since the whole length is the length of 25 of the integrated mold 5,
Each of the sub-zone b1 and the sub-zone b2 has a length corresponding to 12.5 of the integrated die 5.
That is, the power feeding unit 3a provided in the subzone b1
Also, each of the power feeding portions 3b provided in the sub-zone b2 has the same length, and any of them can apply a high frequency to 12.5 integrated dies 5 (total of 62.5 dies 7). It is like this.

Further, since the high frequency output of the entire heating zone B is 100 kW, the high frequency outputs of the power supply sections 2a and 2b provided in the sub-zones b1 and b2 are both 5 kW.
It is set to 0 kW. Therefore, the output of the entire heating zone B does not change at 100 kW, and the output of the high frequency applied to one die 7 does not change at 0.8 kW (FIG. 25).
reference).

In this embodiment, if the heating zone B is divided into two, the division pattern is not particularly limited. That is, the division of the heating zone B is appropriately changed according to the method of applying a high frequency to the mold 7 (integrated mold 5), the layout of the conveyor section 6, the raw material 14 and the properties and characteristics of the finished product. Can be made.

For example, as shown in FIG. 12, the heating zone B is divided into two subzones b1 and b2 in FIG.
Although the same as the example shown in FIG. 3, the length of the subzone b1 (the length of the power feeding portion 3a) is set to the length of nine integral molds 5, the output of the power source portion 2a is set to 36 kW, and the subzone b
The length of 2 (the length of the power feeding portion 3b) may be set to the length of 16 pieces of the integrated mold 5, and the output of the power source portion 2b may be set to 64 kW.

In this case, a total of 45 in subzone b1.
High frequency can be applied to each mold 7.
In the sub-zone b2, a high frequency can be applied to a total of 80 molds 7, but the output of the entire heating zone B is 100 kW, and the output for one mold 7 is 0.8 kW.
It remains W.

On the contrary, as shown in FIG. 13, the subzone b
The length of 1 is set to the length of 16 pieces of the integrated die 5, and the power source unit 2
The output of a may be set to 64 kW, the length of the subzone b2 may be set to the length of nine integral molds 5, and the output of the power supply unit 2b may be set to 36 kW. In this case, subzone b1
, A high frequency can be applied to a total of 80 dies 7, and a high frequency can be applied to a total of 45 dies 7 ... in the sub-zone b2. The output is 100 kW, and the output for one die 7 remains 0.8 kW.

Next, an example of the manufacturing process of the molded product to which the present invention is applied will be described. In the following explanation,
The case of manufacturing the above-mentioned cup cone 8a will be described as an example. Therefore, the raw material 14 is the water-containing raw material,
As the mold 7, the integrated mold 5 shown in FIGS. 3 (a) and 3 (b) is used.
To use. Of course, the present invention is not limited to this manufacturing example.

First, after closing the two outer mold pieces 5b, 5b forming the ground electrode block (electrode block 13) among the mold pieces forming the integrated mold 5, the raw material 14 is formed.
Is poured into the mold 7. After that, the inner mold piece 5a and the outer mold pieces 5b and 5b forming the block of the feed electrode (electrode block 12) are clamped (raw material injecting step). This raw material injection step is performed in the raw material injection zone A in FIG.

The integrated mold 5 into which the raw material 14 has been poured is in a state in which the raw material 14 is charged and preparation for heat molding is completed. Then, the integrated mold 5 is conveyed from the raw material injection zone A to the heating zone B by the rotational movement of the conveyor section 6. In the heating zone B, the power supply unit 2 is connected via the power supply / reception unit 11.
Since the high frequency is applied from a.2b in a non-contact manner, the dielectric heating is started and the gas heating unit 9 also starts the external heating (heating step). This heating zone B
Is, for example, as shown in FIG. 1, subzones b1 and b2
As described above, the phenomenon of high-frequency energy concentration does not occur because it is divided into two parts. Therefore, the raw material 14 can be heated and dried efficiently and reliably, and can be shape | molded.

After that, when the integrated mold 5 leaves the heating zone B, the heating / drying process is completed and the molding is completed. Therefore, the mold clamping state of the inner mold piece 5a and the outer mold pieces 5b, 5b forming the integrated mold 5 is released, and the internal molded product (cup cone 8a) is taken out (molded product removing step). ). This completes the series of manufacturing processes.

In the above manufacturing process, for example,
Other steps such as the following raw material stabilization step (or heating delay step) may be added, and the present invention is not particularly limited to the above example.

For example, in the production of a shaped baked confectionery containing an edible container such as the cup corn 8a, it is preferable to add a raw material stabilizing step before the heating step. In this step, the raw material 14 injected into the mold 7 (integrated mold 5) is held in the mold 7 for a certain period of time to be stabilized.

As described above, it is preferable to use not only dielectric heating but also external heating in the production of molded baked confectionery and the like. At this time, even if the external heating means such as the gas heating unit 9 is provided only in the heating zone B, since the mold 7 (integrated mold 5) is continuously conveyed by the rotational movement of the conveyor unit 6, In the manufacturing apparatus as a whole, the mold 7 is hardly cooled even in the raw material injection zone A and the molded product take-out zone C.

For example, in the heating zone B, the mold temperature is set to 1
If external heating to raise the temperature to 80 ° C. is performed,
Even when the integrated mold 5 (mold 7) is conveyed by the conveyor unit 6 and reaches the molded product take-out zone C or the raw material injection zone A, the mold temperature is maintained at about 180 ° C. Therefore, when external heating is also used, the heating zone B is
It can also be said that it extends to the raw material injection zone A and the molded product take-out zone C.

Therefore, if the injected raw material 14 is allowed to stand in the mold 7 for a certain period of time before the high frequency is applied in the heating zone B, the raw material 14 is heated by the heat from the mold 7 at a high temperature. A gentle external heating will be carried out by conduction. Since the initial change of the raw material 14 is completed by this gradual heating, when a high frequency is applied to the mold 7 thereafter, good dielectric heating of the raw material 14 in the mold 7 occurs.
As a result, the moldability of the raw material 14 is improved, and the physical properties of the obtained molded product can be improved.

Further, since the raw material 14 is stabilized, the high frequency is not applied to the raw material 14 in the time zone when the electric characteristics change most drastically. Therefore, heating zone B
Even if a high-frequency high output is applied, the change in the electrical characteristics of the raw material 14 is small, and the occurrence of the high-frequency energy concentration phenomenon can be further reduced.

In the present embodiment, the raw material stabilizing step is included in the raw material injecting step. Therefore, in the zone division shown in FIG. 8, although not shown, the downstream side of the raw material injection zone A following the heating zone B is the raw material stabilization zone. Therefore, in the raw material injection zone A, the raw material 1 is actually
4 is injected into the region on the upstream side, and on the downstream side, it is a region where the injected raw material 14 is left to be stabilized.

As described above, according to the present invention, the heating zone to which a high frequency is applied is divided into a plurality of subzones, and each subzone is provided with a power source section and a power feeding section. Therefore, it is possible to suppress or avoid the occurrence of the phenomenon of high frequency energy concentration in the heating zone. As a result, it is possible to effectively prevent the occurrence of overheating, dielectric breakdown, etc., and improve the moldability and physical properties of the obtained raw material.

[Second Embodiment] The following will describe another embodiment of the present invention in reference to FIGS. 14 to 16. The present invention is not limited to this. Further, for convenience of description, members having the same functions as those used in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the first embodiment, the heating zone B is divided into two.
Although an example in which the heating zone B is divided is described, the present embodiment will be described by taking an example in which the heating zone B is divided into three or more.

Specifically, for example, as shown in FIG. 14, the heating zone B is set so that the sub-zones b1, b2, b3, b4, and b5 are arranged from the upstream side with reference to the moving direction of the conveyor section 6. Divide into 5 parts. Each subzone has
Power supply units 2a, 2b, 2c, 2d, 2e and power supply unit 3a
3b, 3c, 3d and 3e are provided.

Here, the division pattern of the heating zone B, that is, the length of each sub-zone (feeding portions 3a to 3e).
The length) and the output of high frequencies in the power supply units 2a to 2e are not particularly limited as long as the concentration of high frequency energy can be suppressed or avoided. Therefore, as in the first embodiment, the output and the length may be simply divided into three parts, or even if the output and the length are different, the voltage is applied to one die 7. You may divide so that the output of the high frequency may become the same.

However, it is more preferable to apply a high frequency of different output to each sub-zone according to the properties of the raw material 14 and the molded product which is a finished product. In this case, since heating and drying treatments are carried out at different levels in each subzone, not only the concentration of high frequency energy is suppressed or avoided, but also the moldability of the raw material 14 and the physical properties of the obtained molded product are further improved. Can be made.

For example, in the above starchy water-containing raw material,
Since the electrical characteristics (high frequency characteristics) change drastically in the first stage of heat molding, it is not preferable to apply a high frequency output. In addition, since heating and drying are almost completed at the final stage of heat molding, overheating occurs when a large amount of heat is applied, and the physical properties of the molded product (cup cone 8a, etc.) deteriorate.

As in the first embodiment, heating zone B
14 is divided evenly, the lengths of the sub-zones b1 to b5 are each equal to the length of the five integrated dies 5, and the outputs of the power supply units 2a to 2e are also 20 kW, respectively.
Becomes In the case of this division pattern, a high frequency is applied to 25 molds 7 in each sub-zone, but the output of the entire heating zone B is 100 kW, and the output for one mold 7 is 0.8 kW. There is.

On the other hand, as shown in FIG. 15, the outputs of the power supply units 2a to 2e in each subzone may be individually changed according to the properties of the raw material 14, the cup cone 8a, and the like. Specifically, the lengths of the sub-zones b1 to b5 are the lengths of five of the integrated molds 5, respectively, and it is the same that the high frequency is applied to the 25 molds 7. However, in the division pattern shown in FIG. 15, the output of each of the sub-zones b1 to b5 is 5 kW, the output of each of the sub-zones b2 and b4 is 20 kW, and the output of the sub-zone b3 is 50 kW.
W.

In other words, in the above division pattern, in the sub-zone b1 to the sub-zone b2 which is the first stage of the heating process, and in the sub-zone b3 which is the intermediate stage,
The high frequency output is gradually increased, and the subzone b3
From the final stage to the sub zone b5, on the contrary,
The high frequency output is gradually reduced.

Even in the case of the above division pattern, the output of the entire heating zone B remains 100 kW, but in the sub-zones b1 and b5, the output for one die 7 is 0.
2 kW, and in subzones b2 and b4,
The output for one die 7 is 0.8 kW, which is the same as the division pattern in FIG. 14, and the output for one die 7 is as large as 2.0 kW in the subzone b3. As a result, when the raw material 14 is heat-molded, it is possible to reduce the amount of heat generated at the beginning and the end and increase the amount of heat generated in the middle, so that it is possible to suppress or avoid the concentration of high-frequency energy and also to improve the moldability of the raw material 14. The physical properties of the molded product can be further improved.

In the example shown in FIG. 15, only the high frequency output of the power supply units 2a to 2e is changed, but the length of each subzone may be changed. For example, as shown in FIG. 16, the sub-zones b1, b2, and b3 are arranged from the upstream side with reference to the moving direction of the conveyor unit 6,
When the heating zone B is divided into three, the lengths of the sub-zones b1 and b3 (the lengths of the power feeding portions 3a and 3c) are set to the length of five integral molds 5, and the output of the power source portions 2a and 2c is set to 5 kW. At the same time, the length of the subzone b2 (the length of the power feeding portion 3b) is set to the length of 15 of the integrated molds 5, and the output of the power source portion 2b is set to 90 kW. In the sub-zones b1 and b3, high frequency is applied to 25 molds 7 ...
In the sub zone b2, a high frequency is applied to the 75 molds 7 ...

In the case of this division pattern, the total length of the heating zone B is the same as that of the 25 pieces of the integrated mold 5, but the length of the subzone b2 is substantially three times the length of the subzones b1 and b3. Has become. Further, the output of the entire heating zone B is not different from 100 kW, but in the sub-zones b1 and b3, the output for one die 7 is as small as 0.2 kW, and in the sub-zone b2, the output for one die 7 is It becomes as large as 1.2 kW.

In the above division pattern, not only the high frequency output is changed, but also the subzone length is changed.
Therefore, not only does the amount of heat generated at the beginning and the end when the raw material 14 is thermoformed be reduced, but the length of the subzones b1 and b3 is shortened, so that the time for reducing the amount of heat generated can be set short. . Also, subzone b
By increasing the length of 2, it is possible to set the processing time of the intermediate zone requiring a sufficient amount of heat for the heating / drying processing to be longer.

As a result, the amount of heat can be applied to the raw material 14 more appropriately, the concentration of high frequency energy can be suppressed or avoided, and the moldability of the raw material 14 and the physical properties of the molded product are further improved. Can be made.

As described above, in the present embodiment, the heating zone is divided into three or more subzones, and the high frequency application condition is changed for each subzone. Therefore, it becomes possible to add different levels of heat in different time zones in the respective sub-zones depending on the properties of the raw material and the molded product. As a result, more effective heat molding can be performed, so that a high-quality molded product can be efficiently manufactured.

Further, the high frequency application conditions include at least one of the output of the alternating current of the entire subzone, the output of the high frequency applied to one die, and the length of the subzone. It is preferable. By changing at least one of these conditions in each subzone, the heating condition in each subzone can be changed. As a result, not only the concentration of high-frequency energy can be suppressed or avoided, but also the moldability of the raw material and the physical properties of the molded product can be further improved.

[Embodiment 3] FIGS. 17 to 19 and FIG. 2 according to still another embodiment of the present invention.
6 and FIG. 27 will be described below. The present invention is not limited to this. Further, for convenience of description, members having the same functions as those used in the first or second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the first or second embodiment, even when the heating zone B is divided into a plurality of zones, the heating zone B as a whole uses the dielectric heating by the high frequency heating means and the external heating by the external heating means in combination. In the present embodiment, a part of the heating zone B is provided with a high-frequency application suspension zone that suspends application of high-frequency waves, thereby including a region where only external heating is performed.

Specifically, as shown in FIG. 17, in the present embodiment, the basic division pattern of the heating zone B is
It has the pattern of five divisions described in the second embodiment, and has the gas heating unit 9 (FIG. 9) described in the first embodiment.
Is provided in the entire heating zone B, but the power source section 2b and the power feeding section 3 are provided in a portion corresponding to the sub zone b2.
b is not provided, and the high frequency application pause zone b2-2
Has become.

In the high frequency application rest zone b2-2,
Only the gas heating unit 9 described in the first embodiment is arranged. Therefore, a gentle heat treatment can be performed only by external heating on the upstream side of the subzone b3 that requires the largest amount of heat. Therefore, the raw material 14 can be heat-treated more appropriately. The high frequency application rest zone b2-2 can be said to be an external heating zone because only external heating is performed.

Further, the high frequency application pause zone b2-2
Corresponds to a portion where the electric characteristics of the starchy water-containing raw material 14, which is the raw material 14, changes drastically. Therefore, by not applying a high frequency in this portion, it is possible to avoid the phenomenon of high frequency energy concentration.

In the division pattern shown in FIG. 17, since the high frequency is not applied in the high frequency application pause zone b2-2, the heating zone B is divided from the viewpoint of dividing the high frequency output.
Is effectively divided into four.

That is, similar to the division pattern shown in FIG. 15, the subzones b1, b2-2, b3, b4, and b.
Each of the lengths of 5 is equivalent to 5 pieces of the integrated die 5,
Regarding the high-frequency outputs of a, 2c, 2d, and 2e, the subzones b1 and b5 are both 5 kW (the output for one die 7 is 0.2 kW), and the subzone b3 is 5 kW.
It is 0 kW (the output for one die 7 is 2.0 kW). However, since the high frequency output of the entire heating zone B is 100 kW, the present embodiment is substantially divided into four sub-zones except for the high frequency application pause zone b2-2.

Of the subzones b1, b3 to b5,
The sub-zone b4 is an example of a region in which it is preferable to increase the amount of heat generation. Therefore, this subzone b
4 output is 50 kW (output for one die 7 is 1.
6 kW). The sub-zone b4 is on the downstream side of the sub-zone b3 that requires the largest amount of heat, and on the upstream side of the sub-zone b5 where the final finishing heating / drying process is performed, so the high-frequency output may be increased.

On the other hand, the subzones b1 and b5 do not require a large amount of heat as described in the second embodiment, and therefore it is not preferable to increase the high frequency output. Further, in the sub-zone b3, the high-frequency output is already set to a sufficiently high value, so if the output is further increased, overheating may occur, which is not preferable.

An example of a manufacturing process of a molded product to which the manufacturing method according to the present embodiment is applied will be described. Basically, there are only three steps, which are the raw material injecting step, the heating step, and the molded product removing step described in the first embodiment, but further, external heating is performed during the heating step. ing.

The integrated mold 5 charged with the raw material 14 in the raw material injecting step is conveyed to the heating zone B by the rotational movement of the conveyor section 6. Then, first, in the subzone b1, high frequency is applied together with external heating, and "light" heat treatment in the initial stage is performed. Next, the external heating zone b
In 2-2, since the high frequency is not applied, the dielectric heating is not performed and only the external heating is performed. Therefore, the raw material 14 is heated relatively gently by heat conduction.

At the time when the integrated mold 5 moves from the external heating zone b2-2 to the sub-zone b3, the raw material 14 is stabilized by gentle heating, and the raw material 14 is stabilized, as in the raw material stabilizing step in the first embodiment. Is aged (cured)
To be done. Therefore, even if the highest output high frequency is applied in the sub-zone b3, the raw material 14 is already formed in the integrated mold 5.
Since the initial change of is completed, the change in the electrical characteristics of the raw material 14 is reduced and the raw material 14 is stabilized. As a result, the frequency of occurrence of sparks in the subzone b3 can be reduced, and the formability of the raw material 14 can be improved.

Then, in subzone b4, subzone b3
Since a high-frequency output with a large output according to
The drying process proceeds efficiently. Finally, subzone b5
The final "light" heating and drying process is performed to complete the molding of the molded product.

As described above, in the present invention, the heating zone B may be provided with a zone to which a high frequency is not applied.
Furthermore, when the dielectric heating and the external heating are used together, the external heating zone can be included in the heating zone B. In particular, by providing a high-frequency application suspension zone appropriately according to the raw material 14, it becomes possible to improve the moldability and obtain the desired physical properties of the finished product (molded product).

Alternatively, in this embodiment, as shown in FIG. 18, one heating zone B is divided into subzones b1 and b2, and a high frequency application pause zone d is provided between the subzones b1 and b2. Further, the high frequency application pause zone d may be configured without the gas heating unit 9.

That is, in the sub-zones b1 and b2, the power supply units 2a and 2b and the power feeding units 3a and 3b are provided, respectively.
19, and gas heating parts 9a and 9b are respectively provided, but in the high frequency application suspension zone d, not only the power supply part 2 and the power feeding part 3 but also the gas heating part 9 is provided. Is not provided.

Specifically, since the sub-zone b1 is set on the downstream side of the raw material injecting zone A, and its length is equal to 9 of the integrated mold 5, a total of 45 molds 7 ... Can be applied. In addition, the power supply unit 2 in the subzone b1
Since the high frequency output of a is 50 kW, one mold 7
Output is 1.1 kW. Further, as described above, the gas heating portion 9a having a length corresponding to the length of the subzone b1 is provided.

On the other hand, the sub-zone b2 is set on the upstream side of the molded product take-out zone C, and its length is equal to that of the 11 integrated dies 5, so that a high frequency can be applied to a total of 55 dies 7. . In addition, the power supply unit 2b in the subzone b2
Since the output of the high frequency is 50 kW, the output for one die 7 is 0.9 kW. Further, as described above, the gas heating portion 9b having a length corresponding to the length of the subzone b1 is provided.

Further, the high frequency application suspension zone d is set between the sub-zones b1 and b2 in the vicinity of the end of the support shaft 15b in the conveyor section 6, and its length is equivalent to that of the five integrated dies 5. Has become. In this high frequency application resting zone d, no high frequency is applied and no external heating is applied to a total of 25 molds 7. Therefore, in other words, the high frequency application suspension zone d is a zone for suspending the heating operation.

When the layout of the conveyor section 6 is an endless flat plate, the support shafts 15a.
In the vicinity of 5b, the conveyor section 6 is curved in an arc shape.
Therefore, the power supply unit 3 and the gas heating unit 9 are also curved and arranged in accordance with this. Here, in such a curved portion (referred to as an R portion), high-frequency localization is likely to occur, and when the power feeding portion 3 and the gas heating portion 9 are formed and arranged in a shape corresponding to the R portion, manufacturing This also complicates the structure of the device.

On the other hand, in the present embodiment, the R portion is the zone where the heating operation is stopped. for that reason,
Do not apply high frequency at the site where high frequency localization is likely to occur.
Therefore, the phenomenon of high frequency energy concentration can be avoided even more reliably.

Moreover, as described in the first embodiment, when the external heating is also used, the temperature of the integrated mold 5 hardly decreases, so that even if the heating operation is stopped at the R part, For the raw material 14 in the mold 5,
External heating is being continued.

Therefore, the high frequency application stop zone d becomes an external heating zone similar to the high frequency application stop zone b2-2 shown in FIG. As a result, the raw material 14 is stabilized by gentle heating, and the raw material 14 is aged (cured).
Therefore, the subzone b2 is added to the raw material 14 after aging.
If a high frequency is applied, the moldability of the raw material 14 and the physical properties of the molded product can be improved.

Further, since no heating means is required to be provided in the high frequency application pause zone d, the manufacturing apparatus can be designed so that the power feeding portion 3 and the gas heating portion 9 are not provided at the R portion. As a result, the structure of the manufacturing apparatus can be further simplified.

In the present embodiment, the quality of the obtained molded article can be further improved by providing the high frequency heating application pause zone at at least one of the first and last stages of the heating process.

As described in the second embodiment, for example, when a starch-containing water-containing raw material is fired to produce a molded article, the electrical characteristics (high frequency characteristics) change drastically at the first stage of heat molding. However, it is not preferable to apply a high-frequency wave having a too large output. In other words, in the initial stage of the heating step, the starch-containing water-containing raw material contains a large amount of water (the water content is high). Therefore, if the starch-based water-containing raw material is subjected to strong heating by dielectric heating in this initial stage, The starchy hydrous material causes a sudden change in properties.
As a result, the formability of the obtained fired product (heat-molded product) deteriorates, and the strength of the fired product becomes brittle even if the strength thereof is extremely reduced. Therefore, for example, when the baked product is an edible container or a molded baked confectionery, there arises a problem that the texture becomes excessively light.

Therefore, as shown in FIG. 26, the portion corresponding to the sub zone b1 is set as the high frequency application suspension zone b1-1 without providing the power source section 2a and the power feeding section 3a. In other words, the external heating independent zone b1-1 is provided in the initial stage of heating.

As described above, by providing the external heating independent zone in the initial stage of the heating step, the raw material 14 can be gently heated. Therefore, the raw material 14 is stabilized in the integrated die 5 (die 7).
Even if the above-mentioned starch-containing water-containing raw material contains a large amount of water, it is possible to suppress deterioration of moldability and strength of the obtained molded product. As a result, not only can the quality of the molded product be further improved, but the properties (strength, texture, etc.) of the molded product can be adjusted according to the desired properties.

Similarly, for example, in the case where the starchy water-containing raw material is fired to produce a molded product, heating and drying are almost completed at the final stage of the heat molding, so that a large amount of heat causes overheating. Occurs and the physical properties of the molded product deteriorate. That is, the final stage of the heating process corresponds to the final finishing stage of drying the molded product. If strong heating such as dielectric heating is carried out at this final stage, the molded product will burn due to excessive overheating depending on the type of raw material and the shape of the molded product. The occurrence of the charring not only deteriorates the quality of the molded product, but depending on the situation, it may occur between the upper die and the lower die of the integrated die 5 (the inner die piece shown in FIGS. 3A and 3B). 5a and the outer mold pieces 5b and 5b and the upper mold piece 5c and the lower mold piece 5d shown in FIGS. 4 (a) and 4 (b) may cause sparks, so that a stable molded product can be obtained. It can also be difficult to produce.

Therefore, as shown in FIG. 27, the portion corresponding to the sub zone b5 is set as the high frequency application pause zone b1-1 without providing the power source section 2e and the power feeding section 3e. In other words, the external heating independent zone b5-1 is provided in the final heating stage.

By thus providing the external heating independent zone in the initial stage of heat molding, it becomes possible to gently heat the molded product in the finishing stage of drying the molded product. Therefore, it becomes possible to prevent excessive heating of the molded product. As a result, it is possible to avoid the occurrence of scorching of the molded article and sparks due to the scorching, and to stably produce a high-quality molded article.

The external heating independent zone b1-1 in the initial stage or the external heating independent zone b5 in the final stage is used.
The output of each subzone other than -1 is not particularly limited. In both the example shown in FIG. 26 and the example shown in FIG. 27, as described above, from the viewpoint of dividing the high frequency output, it is substantially divided into four. Of course, the lengths of the sub-zones and the external heating independent zones b1-1 and b5-1 are all five of the integrated mold 5.

Therefore, similarly to the example shown in FIG. 17, it is sufficient to set a high output in a region in which it is preferable to increase the amount of heat generation in each subzone.

In the example shown in FIG. 26, since the subzone b1 is replaced with the external heating independent zone b1-1, the output is 20 kW in the subzone b2 which is immediately downstream thereof.
(Output for one mold 7 is 0.8 kW),
After the external heating, gentle dielectric heating is performed. Then, the subzone b3 and the subzone b that are further downstream thereof
In 4, the output is set to 30 kW (the output for one die 7 is 1.2 kW) and strong heating is performed. afterwards,
In the subzone b5, the output is set to 20 kW (the output for one die 7 is 0.8 kW), and the dielectric heating for finishing is performed.

In the example shown in FIG. 27, subzone b
Since the external heating independent zone b5-1 is replaced with the external heating zone 5, first, in the most upstream subzone b1, the output is 2
The heating is set to 0 kW (the output for one die 7 is 0.8 kW), and the gentle heating in the initial stage is performed. And, in the sub-zone b2 and the sub-zone b3 which are the downstream thereof, the output is 30 kW (the output for one die 7 is 1.
2 kW) and perform intense heating. After that, in the sub zone b4, the output is set to 20 kW (the output for one die 7 is 0.8 kW), the heating is changed from strong heating to gentle heating, and in the external heating single zone b5-1, finishing gentle heating is performed. Carry out.

Although not shown, in the example shown in FIG. 26 and the example shown in FIG. 27, the output of each subzone may be equalized. For example, in the example shown in FIG. 26, the outputs of the sub-zones b2, b3, b4, and b5 may be set to 25 kW (the output for one die 7 is 1.0 kW). Similarly, in the example shown in FIG. 27, the subzones b1 and b
Output of 2 ・ b3 ・ b4 is 25 kW (one die 7
To 1.0 kW).

Here, the method of setting the high frequency application pause zone in the present embodiment is not limited to any of the examples described above. That is, subthorn b
3 or the subzone b4 may be a high frequency application stop zone, or the high frequency application may be performed by combining the initial stage external heating single zone b1-1 and the final stage external heating single zone b5-1. Only b3 and b4 may be used. That is, it is needless to say that the heating zone B in the present embodiment may be designed so that a preferable heat treatment can be performed depending on the type of the molded product or the raw material 14, and is not limited to the above-mentioned examples. Also,
Of course, there may be cases where it is only necessary to change the output for each subzone in the second embodiment.

As described above, in the present embodiment, since the heating zone includes the high frequency application pause zone, when dielectric heating and external heating are used in combination, the high frequency application pause zone is gently heated by external heating. Heating will be performed. Therefore, by setting the high frequency application suspension zone in accordance with the molding raw material, it is possible to improve the moldability and obtain desired physical properties of the finished product. Further, by setting the high frequency application suspension zone in the portion where the electrical characteristics of the forming raw material change most drastically, the phenomenon of high frequency energy concentration can be avoided. In addition, since the gentle heat treatment by external heating can be performed in the preceding stage of the sub-zone in which the highest output high frequency is applied in the heating zone, the forming raw material can be appropriately heat-formed.

Further, in the present embodiment, since the high frequency application resting zone is included, it is possible to design the manufacturing apparatus so that the high frequency is not applied to the site where the high frequency is easily localized. Therefore, the occurrence of the high frequency energy concentration phenomenon can be more reliably avoided.

Further, from the characteristics of the external heating, it is possible to use this zone as an external heating zone in which only the external heating is carried out, whether or not the external heating means is provided in the high frequency application resting zone. In particular, if the high-frequency application pause zone is a site where the power supply unit and the external heating unit are relatively difficult to arrange, it is not necessary to provide various heating units. As a result, the structure of the manufacturing apparatus can be further simplified.

In addition, by providing a high frequency application pause zone in at least one of the initial stage and the final stage of the heating process, it becomes possible to heat according to the raw material, improve the quality of the obtained molded product and It is possible to improve the sex. In particular, the method of providing the high frequency application pause zone in the initial stage or the final stage uses a raw material having a high water content such as a starchy water-containing raw material, or produces a molded product which is easily burnt such as the above-mentioned baked product. In this case, it can be used particularly preferably.

[Fourth Embodiment] The following description will discuss still another embodiment of the present invention with reference to FIGS. 20 to 23. The present invention is not limited to this. Further, for convenience of description, members having the same functions as those used in the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In each of the first to third embodiments, the case where the conveyor section 6 is laid out in the shape of an endless flat plate has been described as an example, but in the present embodiment, another layout of the conveyor section 6 will be described. To do.

For example, as the layout of the conveyor section 6, as shown in FIGS. 20 (a) and 20 (b), a layout of a ferris wheel arranged in an annular shape and vertically erected and rotated. Can be mentioned. When viewed from above, as shown in FIG. 20A, the integrated mold 5 is conveyed so as to rotate in the arrow direction from top to bottom (arrow direction). When viewed from the side, as shown in FIG. 20 (b), the integral mold 5 is attached to the entire outer peripheral surface of the cylindrical conveyor unit 6, and is conveyed so as to rotate in the arrow direction.

As shown in FIG. 20 (a), even in this ferris wheel layout, as in the endless flat plate layout,
Although each process zone of the raw material injection zone A, the heating zone B, and the molded product take-out zone C is set, the raw material injection zone A and the molded product take-out zone C are preferably set downward due to the layout. . This makes it possible to smoothly inject the raw material 14 and take out the molded product.

Alternatively, as shown in FIGS. 21 (a) and 21 (b), a horizontal disk-shaped layout that is arranged annularly with respect to a horizontal plane and rotates is given. When viewed from above, as shown in FIG. 21A, the integrated molds 5 are radially arranged and are conveyed so as to rotate in the arrow direction. When viewed from the side, as shown in FIG. 21 (b), the integrated mold 5 is attached to the upper surface of the annular conveyor unit 6.
Are arranged and attached in a radial pattern, and are conveyed so as to rotate in the direction of the arrow.

As shown in FIG. 21B, in this horizontal disc-shaped layout, the raw material injection zone A, the heating zone B, and the molded product take-out zone C can be set at any part of the conveyor section 6. Since they are the same, the setting position of each process zone is not particularly limited.

Further, as shown in FIGS. 22 (a) and 22 (b), there is a linear layout which moves so as to reciprocate on a horizontal plane. When viewed from above, FIG.
As shown in (a), there are, for example, 13 integrated dies 5 arranged in parallel along the longitudinal direction.
Move back and forth in the direction of the arrow. When viewed from the side, FIG.
As shown in FIG. 2 (b), the integrated mold 5 is attached to the upper surface of the conveyor section 6 arranged on a horizontal plane, and is conveyed so as to rotate in the arrow direction.

As shown in FIG. 22B, in this linear layout, the heating zone B is set at the center, and the raw material injecting zone A and the molded product take-out zone C are shared by both ends of the conveyor section 6. Is preferably set so that

Alternatively, as shown in FIGS. 23 (a) and 23 (b), two linear arrangements 51 in which a plurality of integrated dies 5 are arranged in parallel along the longitudinal direction are further arranged in parallel, and both ends are integrally formed. An example is a partial tact type layout in which the die 5 is sequentially moved to the adjacent linear arrangement 51.

When viewed from above, as shown in FIG. 23A, one linear arrangement is made up of 13 integrated dies 5, and each linear arrangement 51 is made up of the integrated dies 5. It is adjacent by shifting by one. Then, for example, at the left end of the linear arrangement 51, 51 in the figure, the integrated mold 5 moves upward from the lower linear arrangement 51 in the figure, and at the right end of the figure from the upper linear arrangement 51. The integrated mold 5 moves downward. When viewed from the side, FIG.
As shown in (b), the above-mentioned integrated mold 5 is provided on the upper surface of the conveyor unit 6 and moves in the direction of the arrow, and at both ends, adjacent movement of the above-mentioned integrated mold 5 to the linear arrangement 51 is prevented. Done.

As shown in FIG. 23 (a), in this partial tact type layout, the raw material injection zone A, the heating zone B, and the molded product take-out zone C can be set at any part of the conveyor section 6. Since they are the same, the setting position of each process zone is not particularly limited.

The above-described layouts including the endless flat plate layout are roughly classified into a structure in which the integral mold 5 is provided on the outer peripheral surface of the conveyor section 6 formed in an endless shape, and a structure which spreads in a horizontal plane. The integrated die 5 may be provided on the upper surface of the conveyor unit 6 thus formed. However, which layout or configuration is preferable depends on the properties of the raw material 14 or the molded product, restrictions on the place where the manufacturing apparatus is installed, and the like, and is not particularly limited. Further, the above layouts and configurations are merely examples, and other layouts and configurations may be used in the present invention.

As described above, in the manufacturing method according to the present invention, the layout of the conveyor section is not limited to one type, and there are restrictions on the properties of the molding raw material and the molding, or the place where the manufacturing apparatus is installed. A preferable layout can be appropriately set according to the above.

[Fifth Embodiment] The following description will discuss still another embodiment of the present invention with reference to FIGS. 28 to 33. The present invention is not limited to this. Further, for convenience of description, members having the same functions as those used in the first to fourth embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In the first to fourth embodiments, the specific structure of the heating zone B has been described in detail, but in the present embodiment, a more preferable structure of the power supply / reception unit will be described in detail.

Specifically, as described in the first embodiment, in the manufacturing apparatus used in the present invention, the heating part 1 is provided with the power feeding part 3 and the mold 7 (or the integrated mold 5). This is included (see FIG. 2 and the like), and the power feeding unit 3 has a rail shape, and the flat power receiving unit 4 included in the mold 7 is combined with this (FIG. 10A to FIG. See c)). In this configuration, for example, as shown in FIGS. 28A and 28B, the flat plate-shaped power receiving unit 4 is sandwiched by the rail-shaped power feeding unit 3 in a non-contact manner while advancing in the direction of the arrow in the drawing. Go.

Normally, if the rail-shaped power feeding portion 3 has the same shape at the portion near the entrance to the power feeding portion 3 shown in FIGS. 28 (a) and 28 (b) as well as at other portions. good. For example, the cross section may be a "U" shape (or a substantially U shape). However, when the portion near the entrance and the other portion have the same shape, power feeding from the power feeding unit 3 to the power receiving unit 4 is suddenly started, which is not preferable depending on the type of the raw material 14 or the molded product. There is.

For example, as described in the second and third embodiments, for example, in the above starchy water-containing raw material, the electric characteristics (high frequency characteristics) change drastically at the first stage of heat molding, so that the output is too large. It is not preferable to apply the high frequency.

Therefore, when the shape of the power feeding portion 3 is changed in the vicinity of the entrance to each subzone in the heating zone B to gradually increase the power feeding level, the raw material 14 can be gradually heated. Become. As a result, the raw material 14 is stabilized in the integrated die 5 (die 7).
Even if the above-mentioned starch-containing water-containing raw material contains a large amount of water, it is possible to suppress deterioration of moldability and strength of the obtained molded product. As a result, not only can the quality of the molded product be further improved, but the properties (strength, texture, etc.) of the molded product can be adjusted according to the desired properties.

Specifically, as shown in FIGS. 29 (a) and 29 (b), a pair of flat plate-shaped side surface portions 32, 32 for sandwiching the flat plate-shaped power receiving portion 4 in a non-contact manner is provided near the entrance. The feeding portion 3 is formed so that the area thereof decreases, that is, the feeding portion 3 has a substantially triangular shape that has an oblique side that is inclined so as to rise in the traveling direction of the integrated mold 5. As a result, the overlapping area of the power receiving section 4 and the side surface sections 32, 32 sandwiching the power receiving section 4 gradually increases as the integrated mold 5 advances, so that the power receiving section 4, the side surface sections 32, 32, and The capacity of the capacitor formed in the space between them also increases. As a result, it becomes possible to gradually increase the power supply level and gradually heat the raw material 14.

Alternatively, as shown in FIGS. 30 (a) and 30 (b), the distance between the pair of side surface portions 32, 32 (opposing interval).
To expand toward the entrance, that is,
The rail-shaped power feeding portion 3 is formed such that the distance between the side surface portions 32, 32 is narrowed as it goes in the traveling direction of the integrated mold 5. As a result, the space between the power receiving portion 4 and the side surface portions 32, 32 sandwiching the power receiving portion 4 becomes gradually narrower as the integrated mold 5 advances, so that the power receiving portion 4, the side surface portions 32, 32, And the capacity of the capacitor formed in the space between them also increases. As a result, the raw material 14 can be gradually heated by gradually increasing the power supply level.

Similarly, the rail-shaped power feeding portion 3 has the same shape at the portion near the outlet of the power feeding portion 3 shown in FIGS. 31 (a) and 31 (b) and at other portions as long as it has the same shape. good.
However, if the portion near the outlet and the other portion have the same shape, the power feeding from the power feeding portion 3 to the power receiving portion 4 suddenly ends, which may not be preferable depending on the type of the raw material 14 and the molded product.

For example, as described in the second and third embodiments, for example, in the case of a fired product obtained by firing the starch-containing water-containing raw material, if a large amount of heat is applied at the final stage of thermoforming, it will burn due to overheating. Occurs and the physical properties of the molded product deteriorate. Further, there is a possibility that sparks may be generated due to burning.

Therefore, the heating level of the raw material 14 is gradually lowered by changing the shape of the power feeding part 3 and gradually lowering the power feeding level in the vicinity of the outlet in each subzone in the heating zone B. Is possible. This allows
It becomes possible to gently heat the molded product in the finishing step of drying the molded product. Therefore, it becomes possible to prevent excessive heating of the molded product. As a result, it is possible to avoid the occurrence of charring or sparks due to charring in the molded product, and to stably produce a high quality molded product.

Specifically, as shown in FIGS. 32 (a) and 32 (b), the shape of the pair of side surface portions 32, 32 is designed so that the area is gradually reduced toward the vicinity of the outlet, that is, as one body. The power feeding unit 3 is formed in a substantially triangular shape having a hypotenuse inclined so as to descend toward the advancing direction of the mold 5. As a result, the overlapping area of the power receiving section 4 and the side surface sections 32, 32 sandwiching the power receiving section 4 gradually decreases as the integrated mold 5 advances, so that the power receiving section 4, the side surface sections 32, 32, and The capacity of the capacitor formed in the space between them will also decrease. As a result, it is possible to gradually lower the level of power supply and gradually reduce heating to the molded product.

Alternatively, as shown in FIGS. 33 (a) and 33 (b), the distance (opposing distance) between the pair of side surface portions 32, 32.
Is gradually expanded toward the vicinity of the outlet, that is, the distance between the side surface portions 32, 32 is expanded as it goes in the advancing direction of the integrated mold 5.
Is formed. As a result, the space between the power receiving section 4 and the side surface sections 32, 32 sandwiching the power receiving section 4 gradually becomes wider as the integrated mold 5 advances, so that the power receiving section 4, the side surface sections 32, 32, And the capacity of the capacitor formed in the space between them also decreases. as a result,
It is possible to gradually lower the level of power supply and gradually reduce heating to the molded product.

As described above, in the present embodiment, along the traveling direction (movement path) of the integrated mold 5, the applied level of the high frequency applied to the integrated mold 5 is gradually changed.
The power feeding part 3 is formed so as to change the area (facing area) where the power receiving part 4 and the side surface part (opposing surface) 32 of the power feeding part 3 overlap, or along the traveling direction (movement path) of the integrated mold 5. hand,
The power feeding unit 3 is formed so as to change the interval (opposing interval) at which the power receiving unit 4 and the side surface portion (opposing surface) 32 of the power feeding unit 3 face each other. This makes it possible to improve the moldability of the molded product and obtain the desired physical properties of the finished product.

As a method of changing the facing area, as described above, a method of changing the area of the side surface portion (facing surface) 32 along the traveling direction is preferably used.
As a method of changing the facing interval, as described above, a method of changing the interval between the pair of side surface portions (opposing surfaces) 32, 32 along the traveling direction is preferably used, but is not limited to these methods. is not. Further, in the above-described example, the case where the facing area and the facing interval are continuously changed has been described, but the present invention is not limited to this. That is, as long as the application level of the high frequency can be changed, the distance between the side surface portion 32, that is, the facing surface and the power receiving portion 4 may be changed in any manner, for example, stepwise.

Further, in the present embodiment, the configuration of the power feeding portion 3 is changed in order to change the application level of the high frequency, but the present invention is not limited to this. In particular, when the facing area between the power feeding unit 3 and the power receiving unit 4 is changed, the shape of the power receiving unit 4 may be changed instead of the power feeding unit 3.

As described above, in the present embodiment, at least one of the vicinity of the entrance to the heating zone and the vicinity of the exit of the heating zone, the rail-shaped power feeding unit that receives the flat power receiving unit or the power receiving unit is moved. It is formed in a shape that changes along the path (that is, the moving path of the mold) so that the level of power supply can be changed.

Therefore, as in Embodiments 2 and 3, the heating level can be adjusted, the moldability of the molded product can be improved, and desired physical properties of the finished product can be obtained. Further, in particular, since the stepwise heat treatment can be carried out at the first or last stage of the heating step, the forming raw material can be appropriately heat-formed.

[0230] Further, the shape change of the rail-shaped power feeding portion in the present embodiment, the division of the heating zone in the first to third embodiments, the change in output for each zone, the setting of the high frequency application stop zone, etc. By combining them, the strength of heating can be adjusted at any place. Therefore, for example, by changing the shape of the power feeding portion at the site near the entrance or exit of each subzone, it is possible to perform more appropriate heat treatment according to the state of the raw material or the molded product.

[Sixth Embodiment] The following description will discuss still another embodiment of the present invention with reference to FIGS. 34 to 36. The present invention is not limited to this. Further, for convenience of explanation, members having the same functions as those used in the first to fifth embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In the first to fifth embodiments, the configuration of the heating zone B and the power supply / reception part has been described, but in the present embodiment, a preferable method for advancing the power reception part, that is, the mold to the heating zone will be described in detail. Explained.

Specifically, for example, as illustrated in the first to third embodiments, the layout of the conveyor section 6 is an endless flat plate, and the support shafts 15a.
It is assumed that the conveyor section 6 is curved in an arc shape in the vicinity of 5b (see FIG. 1, FIG. 14, etc.). At this time, the power feeding unit 3 is also curved and arranged in accordance with the curved portion (R portion) of the conveyor unit 6. Here, when the mold 7 moves, the conveyor unit 6
The mold 7 that moves in a fixed time between the straight part and the R part
The distance is different.

For example, as shown in FIG. 34 (a), the feeding portion 3 has a high-frequency applying zone (subzone b2 shown in FIG. 14) having a shape including both a straight portion and an R portion.
Etc.), the number of power receiving units 4 inserted in the power feeding unit 3 (sandwiched between the side surface portions 32, 32) constantly fluctuates. In other words, the number of molds 7 that are dielectrically heated in the high frequency application zone constantly fluctuates. Figure 34 (a)
In the example shown in (1), the number of power receiving units 4 (that is, the mold 7) to be inserted into the power feeding unit 3 changes from 1.7 to 2.3, and the average number of inserted units is 2, whereas Fluctuation rate is ± 15%
That is, it becomes 1/4 sheet. In this case, if the output of the power supply unit 2 is 5 kW, the output for one die 7 is 2.17.
It varies from kW to 2.94 kW.

As described above, if the number of flat plate-shaped power receiving portions 4 inserted in the power feeding portion 3, that is, the number of integrated dies 5 is not constant, high frequency tuning becomes unstable. Therefore, FIG.
As shown in (b), a high anode current value and a low anode current value occur periodically. That is, in the anode current value, the timing in which the tuning is matched and the timing in which the tuning is not matched are alternately and continuously appearing, and as a result, a state in which the anode current value is high and a state in which the anode current value is low are alternately generated. Become. In the example shown in FIG. 34 (a), as shown in FIG. 34 (b), the anode current value fluctuates from a minimum value of 0.3 A to a maximum value of 0.7 A, and when viewed from an average value of 0.5 A, it greatly fluctuates. You are doing it.

In particular, the first stage (initial stage) of the heating process
Then, the state change of the raw material 14 is the largest, and the water content of the raw material 14 is the lowest in the final stage of the heating step. Therefore, the tuning of the high frequency is more likely to be unstable, and the fluctuation of the anode current value is likely to be the most severe. Therefore, if the number of the flat plate-shaped power receiving portions 4, that is, the molds 7 inserted in the power feeding portion 3 is not constant at the initial stage and the final stage of the heating process,
If the timing is out of synchronization, the heating efficiency is likely to decrease, and sparks may occur.

Further, the output of the power supply unit 2 needs to be adjusted to the highest value (peak value) of the anode current value. Figure 34 (a)
In the example shown in (b), the output of the power supply unit 2 is 5 kW, and only an anode current value of 0.5 A on average can be applied. Therefore, it becomes necessary to use the power supply unit 2 having an excessive output, which increases the manufacturing cost of the molded product. Further, in order to control the tuning of the high frequency to be constant, it is necessary to adjust the capacitance and the inductance at a very high speed.

Of course, depending on the type of the raw material 14 and the type of the molded product, the problem of unstable tuning of the high frequency may not have a great influence, but a calcined product is produced using a starchy hydrous raw material. In such a case, it is desirable to stabilize the high frequency tuning.

Therefore, as shown in FIG.
Similar to the example shown in FIG. 4 (a), if the high frequency applying zone has a shape including both the straight portion and the R portion, the length of the high frequency applying zone is extended.

Specifically, as shown in FIG. 35 (a),
The rail-shaped power feeding unit 3 is
The part is extended from before and after the start of bending to the anterior position where the bending ends. As a result, the number of power receiving units 4 inserted into the power feeding unit 3 is changed from 3.4 to 4.0. Since the variation of the number of molds 7 being heated is ± 0.25, the variation of the molds 7 itself does not change, but the average number of inserts is 3.7, while the variation is The rate is ± 8%, and the variation rate is obviously lower than that in the example shown in FIG.

The output variation for one die 7 is also 1.25 kW to 1.47 kW, which is lower than the example shown in FIG. 34 (a). Further, as shown in FIG. 35 (b), although the anode current value fluctuates, the fluctuation of the anode current value is suppressed from 0.5A at the lowest to 0.7A at the lowest, approaching around 0.6A. . That is, in this example, the output of the power supply unit 2 is 5 k, which is the same as that in the example shown in FIG.
While W, an average anode current value of 0.6 A can be applied. Therefore, it can be seen that the energy efficiency is improved.

As described above, in the present invention, when the high frequency application zone includes the straight portion and the R portion, it is preferable to extend the length. As a result, it is possible to reduce the variation rate of the number of molds heated in one subzone, the variation of high frequency tuning is also reduced, and the anode current value can be relatively stabilized. Therefore, the energy efficiency of dielectric heating by applying high frequency is improved,
The risk of sparking can also be reduced.

Further, as shown in FIG. 36 (a), the high frequency application zone may be constituted by only a straight line portion. In this case, since the R portion is not included, the number of the power receiving sections 4 inserted into the power feeding section 3 is substantially constant at three, and the average number of inserted sheets is three, and the variation of the number of the molds 7 being heated does not vary. It becomes approximately ± 0. Furthermore, the fluctuation of the output for one die 7 is 1.6.
It becomes constant at 5 kW, and as shown in FIG. 36 (b), the fluctuation of the anode current value is suppressed from a minimum value of 0.6 A to a maximum value of 0.7 A, approaching around 0.65 A. That is, in this example, the output of the power supply unit 2 is as shown in FIGS.
While the same 5 kW as in the example shown in (a), an average anode current value of 0.65 A can be applied. Therefore, it can be seen that the high frequency tuning is very stable and the energy efficiency is further improved.

As described above, when the heating zone B is designed according to the type of the raw material 14 and the molded product, the R portion is set as the high frequency application pause zone and only the linear portion is used as described in the third embodiment, for example. If the configuration is such that a high frequency is applied (see FIG. 18), the high frequency tuning is stabilized,
It becomes possible to realize an increase in energy efficiency and the avoidance of sparks.

Here, the heating zone B is designed such that the raw material 14
It is necessary to enable preferable heating according to the state change and the type of molded product finally obtained. In particular, as described in the third and fifth embodiments, the state change of the raw material 14 is large. When a high frequency is applied in the initial stage or the final stage, it is preferable that the high frequency application zone be designed so as to suppress the fluctuation of the anode current value.

However, in designing the heating zone B, the high frequency application zone may not necessarily be constituted by only the above-mentioned linear portion, in consideration of the state change of the raw material 14 and the kind of the molded product finally obtained. Not exclusively. Further, even if the high-frequency applying zone is configured only by the straight line portion, the number of power receiving units 4 inserted into the power feeding unit 3 may not be constant.

Further, as shown in FIG. 36B, the anode current value is actually in the range of 0.6 A to 0.7 A even when the number of power receiving units 4 inserted in the power feeding unit 3 is constant. Is fluctuating in. This is because the state of the raw material 14 in the mold 7 newly entering the high frequency application zone (the power feeding section 3 of the sub zone) is that the raw material 14 in the mold 7 exits from the high frequency application zone.
This is because it is different from the state of.

Therefore, in this embodiment, the variation rate of the mold 7 heated in one high frequency application zone (subzone) is set to a predetermined value regardless of whether the high frequency application zone includes the R portion or only the straight portion. It is specified within the range, and the length of the high frequency application zone is set based on this specification.

Specifically, in the present embodiment, if the variation rate of the die 7 to be heated is C, this variation rate C can be set by the following equation. However, N _max is the maximum number of power receiving units 4 inserted in the power feeding unit 3, and N _min is the power feeding unit 3.
_Nave is the minimum number of power receiving units 4 inserted in
Is the average number of the power receiving units 4 inserted in the.

C = [(N _max −N _min ) / 2] / N _ave That is, the fluctuation rate C of the heated die 7 is the maximum number and the minimum number of the power receiving sections 4 inserted into the power feeding section 3. It is calculated as a value obtained by dividing the difference by 2 by the average number of inserted sheets of the power receiving unit 4.

In the present embodiment, it is preferable to set the length of the high-frequency applying zone so that the fluctuation rate C is in the range of 0 or more and less than 0.5 (0 ≦ C <0.5), and particularly, In the initial stage and the final stage of the heating process, the above fluctuation rate C
It is preferable to set the length of the high-frequency application zone so that is within the range of 0 or more and less than 0.1 (0 ≦ C <0.1).

As described above, the length of the sub zone (high frequency application zone) included in the heating zone for applying high frequency is designed so that the number of power receiving sections inserted into the power feeding section is as constant as possible. To do. As a result, it is possible to reduce the variation in the number of molds that perform dielectric heating by applying a high frequency in one subzone, so that it is possible to stabilize the high frequency tuning and reduce the increase / decrease in the anode current value. be able to. As a result, not only energy efficiency can be improved, but also spark generation can be avoided.

The present invention is not limited to the above-described embodiments, but various modifications can be made within the scope of the claims, and the technical means disclosed in the different embodiments. It goes without saying that the embodiments obtained by appropriately combining the above are also included in the technical scope of the present invention.

[0254]

EXAMPLES The present invention will be described in more detail based on the following examples, comparative examples, and conventional examples, but the present invention is not limited thereto. In the following description, “part by weight” is simply referred to as “part” and “% by weight” is simply referred to as “%”. In the heating zone, the frequency of sparks generated by the application of high frequency,
Regarding the moldability of the obtained molding raw material and the physical properties of the molded product, and the various properties imparted to the molded product when used in combination with external heating, the state of effect development of the additive and the firing state are described below. It was evaluated by.

[Spark Occurrence Frequency] In the heating zone B, as described above, the high frequency energy is localized, so that the high frequency energy concentration phenomenon occurs and the spark easily occurs. The level of occurrence of this spark was evaluated based on the frequency of occurrence. The case of no occurrence was evaluated as ⊚, the case of almost no occurrence was evaluated as ◯, the case of occasional occurrence was evaluated as Δ, and the case of very frequent occurrence was evaluated as x.

[Moldability of Raw Material] As the moldability of the raw material 14, the releasability of the molded article from the mold 7 (integral mold 5) and the shape retention of the molded article were comprehensively evaluated. ◎ when the releasability and shape retention are very good, ○ when the mold releasability and shape retention are somewhat difficult, but when molded as a molded product with almost no problems, releasability or shape retention However, when the molding itself is possible, it is evaluated as Δ, and when the molding itself is impossible, it is evaluated as x.

[Physical Properties of Molded Article] The physical properties of the molded article are as follows.
The strength, texture, and the like of the obtained molded product were comprehensively evaluated by appearance, color, touch, and the like. Strength and tissue uniformity,
It was evaluated as ◎ when it was in a very good state such as color tone, ◯ when it was good, Δ when it was a little good enough to be used as a molded product, and × when it was unusable due to some problem. .

[Expression state of effect of additive] As the above additive, a red colorant and a fragrance were used, and the expression of these effects was evaluated. When the molded product is a little brownish red and the color development of the colorant is very good, it is ◎, when it is good, it is ○, when the color development of red is somewhat inferior and the color development is slightly poor, it is △, and the color development of red is very Inferiorly, the molded product turns dark brown,
The case of poor color development was evaluated as x.

Similarly, when a very good flavor remains in the molded product, ⊚, when good flavor remains, ○, when the residual state of the flavor is slightly poor, Δ, almost all the flavor remains. If there is no defect x
Evaluated as.

[Firing State] Regarding the firing state, the firing color and roast odor of the molded product were evaluated. The firing color was evaluated as ⊚ when sufficiently dark, ◯ when slightly dark, Δ when slightly light, and x when very light. Also,
The roasted odor was evaluated as ⊚ when it was very strong, ◯ when it was strong, Δ when almost no odor (slightly odor), and X when it did not smell at all.

[Preparation of Raw Materials] The starch and / or starch as the main component and the subcomponent a or b are added to water so that the compounding ratios shown in Table 1 are obtained, and the starch is sufficiently stirred and mixed. Water-containing raw materials A to F (hereinafter, simply referred to as raw materials A to F) were prepared. The solid content and viscosity of each raw material 14 are also shown in Table 1. The raw materials A to C containing the subcomponent a and E and F are all the raw materials 14 of the edible container, and the raw material D containing the subcomponent b is the raw material 14 of the biodegradable molded product.

[0262]

[Table 1]

The corn starch in Table 1 includes, in addition to ordinary corn starch, waxy constarch, high amylose corn starch, industrially processed pregelatinized corn starch, cross-linked corn starch and the like. These blending ratios are arbitrary and are conditions set appropriately.

[Shape of Molded Product] As the concrete shape of the molded product, in the case of an edible container, the conical cup cone 8a shown in FIGS. 5 (a) and 5 (b) or the shape of FIG. 6 (a). A flat plate-shaped waffle cone 8b shown in (b) is used. The concrete size of the cup cone 8a has a maximum diameter of 54 mm and a height of 12
The thickness is 0 mm and the thickness is 2.0 mm. The specific size of the waffle cone 8b is 150 mm in diameter and 2.0 mm in wall thickness.

On the other hand, in the case of a biodegradable container, as shown in FIG.
The tray 8c has a quadrangular shape shown in (b) and has an edge portion formed on the periphery thereof. The specific size of this tray 8c is 220 mm x 220 mm x 21.5 in height, width and height.
mm, the wall thickness is 3.5 mm.

[Structure of Manufacturing Apparatus] In each of the following Examples and Comparative Examples, a manufacturing apparatus basically having the following specifications was used.

As shown in FIG. 8, the conveyor section 6 is laid out in an endless flat plate shape so as to spread horizontally. Further, a plurality of tongs (integral mold 5) are attached to the entire surface of the conveyor section 6.
Each tongue is configured by arranging five molds 7 continuously in a line, and the molds 7 can be continuously moved by conveying the tongs. In the conveyor section 6, the raw material injection zone A, the heating zone B, and the molded product take-out zone C are arranged in this order from the vicinity of one end (end on the support shaft 15a side) along the rotational movement direction of the tongs. The process zone is set.

In the heating zone B, the high frequency heating section including the power source section 2 and the power feeding section 3, and the gas heating section 9 (external heating section).
And are provided. The total high-frequency output of the high-frequency heating unit is 100 kW.
Unless otherwise specified, the mold temperature by external heating of 18 is
It is 0 ° C.

Further, the number of tongs (the number of integrated dies 5) capable of performing dielectric heating in the entire heating zone B is 25.
Therefore, the number of molds 7 that can perform dielectric heating in the entire heating zone B is 125.

Furthermore, the number of tongs that can be directly externally heated is the same as the above number (the number of molds 7 is 125).
However, in actuality, even in the raw material injecting zone A and the molded product take-out zone C, the mold temperature due to the external heating hardly decreases, so it can be considered that the external heating is performed in the entire manufacturing apparatus. .

[Heating Zone Division Pattern] In the following examples, the heating zone B is divided into a plurality of subzones, and a high frequency applying section (power source section 2 and power feeding section 3) is provided in each subzone to apply a high frequency. However, the division state of the heating zone B, that is, the division pattern of the heating zone will be described using the division pattern numbers shown below.

First, in the division patterns 1 to 3, the heating zone B described in the first embodiment is divided into the subzone b1.
1 and FIG. 12, the division pattern 2 corresponds to the configuration shown in FIG. 12, and the division pattern 3 corresponds to the configuration shown in FIG.

Next, the division patterns 4 to 6 are patterns for dividing the heating zone B into two or more divisions described in the second embodiment, and the division pattern 4 has the five-division configuration shown in FIG. The division pattern 5 corresponds to the 5-division configuration shown in FIG. 15, and the division pattern 6 corresponds to the 3-division configuration shown in FIG.

Next, the division patterns 7 and 8 are the patterns described in the third embodiment in which the heating zone B is provided with the high frequency application pause zone for stopping the application of the high frequency, and the division pattern 7 is shown in FIG. The division pattern 8 is shown in FIG.
This corresponds to the configuration shown in FIG.

Next, the division patterns 9 and 10 are provided with the external heating single zone b1-1 at the initial stage or the external heating single zone b5-1 at the final stage in the heating zone B, which is also described in the third embodiment. 26, and the division pattern 10 corresponds to the configuration shown in FIG. 27. In the present embodiment, the output of the sub-zones b2, b3, b4, b5 in the division pattern 9,
And subzones b2 and b3 in the division pattern 10
・ The output of b4 and b5 is 25 kW (one die 7
Is set to 1.0 kW), and only this point is different from the configuration shown in FIG. 26 or 27.

Next, the division patterns 11 to 14 have the shape of the rail-shaped power feeding portion that receives the flat power receiving portion at least at one of the vicinity of the inlet and the outlet to the heating zone described in the fifth embodiment. It is a pattern having a configuration to be changed. At this time, regarding the sub-zone division pattern itself, the five-division pattern shown in FIG.
That is, the division pattern 4.

The division pattern 11 is shown in FIG. 2 in the vicinity of the entrance of the subzone b1 of the division pattern 4.
9 (a) and 9 (b) are combined, and the division pattern 12 is located near the entrance of the subzone b1 of the division pattern 4 in FIG.
It is a combination of the shapes of the power feeding section shown in (b),
The division pattern 13 is the subzone b5 of the division pattern 4.
The combination of the shapes of the power feeding parts shown in FIGS. 29 (a) and 29 (b) near the entrance of
No. 4 is a combination of the shapes of the power feeding portions shown in FIGS. 30A and 30B with respect to the vicinity of the entrance of the subzone b5 of the division pattern 4.

In the comparative example in which the heating zone B is not divided into sub-zones, the non-divided pattern is similarly used.
This non-divided pattern corresponds to the configuration shown in FIG.

Regarding the arrangement of the gas heating section 9,
All of the patterns except the division pattern 8 are the external heating patterns 1 arranged in the entire heating zone B shown in FIG. 9. In the division pattern 8, only the subzones b1 and b2 shown in FIG. Is the external heating pattern 2 for arranging. Therefore, the external heating patterns 1 and 2 can be regarded as being integrated with each divided pattern, and will not be particularly mentioned in the following examples.

Example 1 In the manufacturing apparatus of the above specifications, the heating zone B was divided into two so that the division pattern 1 was obtained (see FIG. 1). The cup cone 8a was heat-molded from the raw material A using the manufacturing apparatus having this configuration, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 2.

[Embodiment 2] In the manufacturing apparatus of the above specifications, the heating zone B was divided into 5 so as to form the division pattern 4 (see FIG. 14). The cup cone 8a was heat-molded from the raw material A using the manufacturing apparatus having this configuration, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 2.

[Embodiment 3] In the manufacturing apparatus of the above specifications, the heating zone B was divided into 5 so as to form the division pattern 5 (see FIG. 15). The cup cone 8a was heat-molded from the raw material A using the manufacturing apparatus having this configuration, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 2.

[Prior Art] JP-A-10-230527
The cup cone 8a was heat-molded from the raw material A by the technique disclosed in the publication. Specifically, as shown in FIG. 24, the basic configuration of the conveyor section 6 is the same as that of the first or second embodiment. However, each tongue is configured to have only one die 7, and the high frequency output of the heating zone B is 9 kW and the heating zone B is
Therefore, the number of tongs that can perform dielectric heating is 9, and the number of molds 7 is also 9. That is, the scale of the manufacturing apparatus is reduced as a whole.

As described above, when the molded product was manufactured by the conventional manufacturing apparatus and manufacturing method, the spark frequency, the moldability of the raw material 14 and the physical property of the molded product were evaluated in the same manner as in Example 1. The results are shown in Table 2.

[Comparative Example 1] In the manufacturing apparatus of the above specifications, the non-divided pattern is obtained, that is, the heating zone B.
Using a manufacturing apparatus configured not to divide (see FIG. 25)
The cup cone 8a was heat-molded from the raw material A, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 2.

[0286]

[Table 2]

As is clear from the results of Table 2, in the manufacturing method and the manufacturing apparatus according to the present invention, even if the manufacturing apparatus has a large scale, the heating zone B can be divided to suppress or avoid localization of high frequencies. Therefore, it can be seen that the occurrence of sparks is small and overheating and dielectric breakdown can be effectively prevented. Further, in the production method according to the present invention, the raw material 1
The moldability of No. 4 and the physical properties of the molded product can be made excellent.

In particular, as is clear from the comparison between Examples 2 and 3, when the cup cone 8a is molded using the raw material A, the output of the subzone b1 where the electric characteristics of the raw material A change most drastically. By lowering the value, it is possible to improve the moldability of the raw material 14 and the physical properties of the molded product, and at the same time, it is possible to prevent the occurrence of sparks.

If the output of the raw material A is gradually increased from the sub-zones b1 to b3 as the change in the electric characteristics of the raw material A is reduced, efficient high-frequency heating can be performed while avoiding the occurrence of sparks. Further, by gradually lowering the output from the subzones b3 to b5, it becomes possible to prevent overheating of the molded product, improve the moldability and reduce the occurrence of sparks, and adjust the end of heating even more. It will be easier.

On the other hand, when the scale of the heating equipment is small as in the conventional example, the high frequency energy required for one die 7 can be small, and the output of the power supply unit 2 is also small. Therefore, even if the heating zone B is not divided, high-frequency localization hardly occurs, and overheating and dielectric breakdown hardly occur.

On the other hand, as in the comparative example, when the heating zone B is not divided even if the scale of the heating equipment is increased, that is, the conventional technique disclosed in the above publication is applied to the large-scale heating equipment. In that case, the output of the power supply unit 2 also increases. Therefore, the heating zone B becomes longer and the high frequency waves are more likely to be unevenly distributed, and the high frequency waves are likely to be localized due to the change of the high frequency characteristics of the raw material A which is the raw material 14, or the high frequency waves are concentrated on a specific portion. Is likely to occur,
It is not possible to prevent the occurrence of overheating or dielectric breakdown.

[Embodiment 4] In the manufacturing apparatus of the above specifications, the heating zone B was divided into three so as to form the division pattern 6 (see FIG. 16). The tray 8c was heat-molded from the raw material D using the manufacturing apparatus having this configuration, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 3.

[Comparative Example 2] In the manufacturing apparatus of the above specifications, using the manufacturing apparatus configured to have the non-divided pattern, that is, the heating zone B is not divided (see FIG. 25), the tray from the raw material D to the tray is used. 8c was heat-molded, and the spark frequency at that time, the moldability of the raw material 14 and the physical properties of the molded product were evaluated. The results are shown in Table 3.

[0294]

[Table 3]

As is clear from the results in Table 3, in the manufacturing method and manufacturing apparatus according to the present invention, the raw material 14 is the raw material D.
And the obtained molded product is the tray 8 of the biodegradable molded product.
It can be seen that even in the case of c, the high frequency localization can be suppressed or avoided by the division of the heating zone B, so that the occurrence of sparks is small, and overheating and dielectric breakdown can be effectively prevented. In the manufacturing method according to the present invention, the raw material 14
The moldability and physical properties of can be made excellent.

[Embodiments 5 to 7] In the manufacturing apparatus of the above specifications, the division patterns 1, 2, or 3 are set as follows.
The heating zone B is divided into two (see FIG. 1, FIG. 12 or FIG. 13).
reference). Using the manufacturing apparatus having this configuration, the tray 8c was thermoformed from the raw material D, and only the spark frequency at that time was evaluated. The results are shown in Table 4.

[Examples 8 to 10] In the manufacturing apparatus of the above specifications, the heating zone B was divided into two so as to form the division pattern 1, 2 or 3 (see FIG. 1, FIG. 12 or FIG. 13). Using the manufacturing apparatus having this configuration, the raw material C
The above waffle cone 8b was heat-molded, and only the spark frequency at that time was evaluated. The results are shown in Table 4.

[0298]

[Table 4]

As is clear from Table 4, even when the heating zone B is similarly divided into two, the frequency of sparks is greatly reduced by changing the division pattern according to the type of the raw material 14 and the molded product. It becomes possible.

In particular, when the tray 8c is formed from the raw material D, the output of the subzone b1 is lowered and the length of the subzone b1 is shortened so that the tongs (mold 7) that can be heated in the subzone b1 are used. By reducing the number, it is possible to suppress the generation of sparks in the entire heating zone B. On the other hand, when forming the waffle cone 8b with the raw material C,
Conversely, the output of the subzone b2 is lowered, and the subzone b
By shortening the length of 2 to reduce the number of tongs (mold 7) that can be heated in the subzone b2, the heating zone B
It is possible to suppress the generation of sparks as a whole.

[Embodiments 11 and 12] In the manufacturing apparatus having the above specifications, the division pattern 5 or 7 is obtained.
The heating zone B was divided (see FIG. 15 or FIG. 17).
The cup cone 8a is heat-molded from the raw material B using the manufacturing apparatus having this configuration, and the spark frequency at that time,
The moldability of the raw material 14 and the physical properties of the molded product were evaluated. The results are shown in Table 5.

[0302]

[Table 5]

As is clear from the results shown in Table 5, the raw material 14
According to the type of the molded product, a high frequency application pause zone b2-2 is provided during the process of heat molding, and the material 14 (raw material B) is aged (cured) when gently heated by external heating or the like. Therefore, the moldability of the raw material 14 and the physical properties of the finished product can be improved. In addition, by heating the portion of the raw material 14 (raw material B) where the electric characteristics change drastically by external heating, it is possible to effectively prevent localization of high frequencies and reduce the frequency of sparks.

[Embodiments 13 to 16] In the manufacturing apparatus of the above specifications, the division pattern 1 or 8 is obtained.
The heating zone B was divided (see FIG. 1 or FIG. 18). Using the manufacturing apparatus having this configuration, the raw material B is used for the cup cone 8a or the raw material C is used for the waffle cone 8a.
b was heat-molded, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated. The results are shown in Table 6.

[0305]

[Table 6]

As is clear from the results shown in Table 6, the raw material 14
According to the type of the molded product, if the high frequency application pause zone d is provided during the heat molding process, the localization of the high frequency can be effectively prevented and the frequency of spark generation can be reduced. In addition, in the high frequency application pause zone d, when the material is gently heated by external heating or the like, the raw material 1
Since 4 (raw material B or C) can be aged (cured), the moldability of the raw material 14 and the physical properties of the finished product can be improved.

In particular, a curved region corresponding to the R portion or the like is used as the high frequency applying zone d without providing the high frequency heating part or the gas heating part 9 and a good molded product can be obtained, and the spark Not only can the frequency of occurrence be reduced, but the device configuration can be simplified.

Example 17 In the manufacturing apparatus of the above specifications, the heating zone B was divided into the divided patterns 7 (see FIG. 17). Furthermore, external heating by the gas heating unit 9 was adjusted so that the mold temperature was 120 ° C. Using the production apparatus having this configuration, the cup cone 8a is heat-molded from the raw material A, the moldability of the raw material 14 at that time, the textured state of the molded article, the state of expression of the effect of the additive
And the firing state was evaluated. The results are shown in Table 7.

[Examples 18 and 19 and Comparative Example 3] In Example 17, the external heating by the gas heating unit 9 was
The moldability of the raw material 14 at that time was heat-molded from the raw material A to the cup cone 8a in the same manner as in Example 17 except that the mold temperature was adjusted to 160 ° C., 200 ° C., or 240 ° C. , The textured state of the molded product, the state of manifestation of the effect of the additive, and the fired state were evaluated. The results are shown in Table 7.

[0310]

[Table 7]

As is clear from the results shown in Table 7, from the viewpoint of moldability, when the mold temperature is 120 ° C. or 2
When the temperature is 40 ° C, external heating is not preferable or inappropriate, whereas when the mold temperature is 160 ° C,
If it is 200 ° C., external heating is appropriate.

Specifically, in Example 17, since the mold temperature was 120 ° C., the ratio of external heating to high frequency heating was too low. Therefore, the stabilization of the raw material A becomes insufficient in the raw material stabilization zone and the high frequency application suspension zone d,
Although some moldability is obtained, the moldability is not so good. On the other hand, in Comparative Example 3, since the mold temperature was 240 ° C., the ratio of external heating was too high, the molded product was scorched, molding was impossible, and various characteristics due to external heating could not be evaluated.

On the other hand, in Examples 18 and 19, since the mold temperature was appropriate, the balance between external heating and high frequency heating was good. Therefore, the raw material A can be sufficiently stabilized in the raw material stabilization zone and the high frequency application suspension zone d, and very good moldability can be obtained.

Further, as is clear from the results of Table 7, from the viewpoint of imparting various characteristics by external heating, the balance between external heating and high frequency heating can be appropriately changed as in Examples 17 to 19. For example, the textured state of the molded article, the state in which the effect of the additive is exhibited, and the firing state can be appropriately changed. Therefore, depending on the application of the molded product,
By changing the conditions of external heating, the characteristics of the molded product can be changed arbitrarily.

[Embodiment 20 · 21] In the manufacturing apparatus having the above specifications, the division pattern 4 or 9 is obtained.
The heating zone B was divided (see FIG. 14 or FIG. 26).
The cup cone 8a is heat-molded from the raw material E by using the manufacturing apparatus of this configuration, and the spark frequency at that time,
The moldability of the raw material 14 and the physical properties of the molded product were evaluated. The results are shown in Table 8.

[0316]

[Table 8]

[Embodiments 22 and 23] In the manufacturing apparatus of the above specifications, the heating zone B was divided into the division patterns 4 or 10 (see FIG. 14 or FIG. 27). The cup cone 8a was heat-molded from the raw material F using the manufacturing apparatus having this configuration, and only the spark frequency at that time was evaluated. The results are shown in Table 9.

[0318]

[Table 9]

As is clear from the results shown in Tables 8 and 9, if the external heating independent zone is provided at the initial stage or the final stage of the heat molding depending on the type of the raw material 14 and the molded product, it is possible to obtain a better thermal conductivity depending on the raw material 14. Proper heating is possible,
The quality of the obtained molded product can be improved. Moreover, since the frequency of sparks can be further reduced, the productivity of the molded product can be further improved.

[Examples 24 to 26] In the manufacturing apparatus of the above specifications, the heating zone B was divided into the divided patterns 4, 11 or 12 (Figs. 14 and 29).
(A) and (b) or FIG. 30 (a) and (b)). The cup cone 8a was heat-molded from the raw material E using the manufacturing apparatus having this configuration, and the spark frequency at that time, the moldability of the raw material 14, and the physical properties of the molded product were evaluated.
The results are shown in Table 10.

[0321]

[Table 10]

As is clear from Table 10, by changing the shape of the rail-shaped power feeding portion 3 that receives the flat plate-shaped power receiving portion 4 in the subzone corresponding to the initial stage of heating, and gradually increasing the power feeding level, Appropriate heating according to the raw material 14 is possible, and the quality of the obtained molded product can be improved.

[Examples 27 to 29] In the manufacturing apparatus of the above specifications, the heating zone B was divided into the divided patterns 4, 13 or 14 (Figs. 14 and 32).
(A) and (b) or FIG. 33 (a) and (b)). The cup cone 8a was heat-molded from the raw material F using the manufacturing apparatus having this configuration, and only the spark frequency at that time was evaluated. The results are shown in Table 11.

[0324]

[Table 11]

As is clear from the results shown in Table 11, the shape of the rail-shaped power feeding portion 3 for receiving the flat plate-shaped power receiving portion 4 is changed in the sub-zone corresponding to the final stage of heating to gradually change the power feeding level. As a result, more appropriate heating according to the raw material 14 becomes possible. This makes it possible to avoid excessive overheating in the final stage of heating and further reduce the frequency of spark generation, so that the productivity of the molded product can be further improved.

[0326]

As described above, in the method for manufacturing a heat-formed product according to the present invention, the heating region is divided into a plurality of lower regions, and each of the lower regions is provided with at least the power supply means and the power feeding means. This is the method used.

Therefore, in the above method, the heating region, which is a region to which a high frequency is applied for thermoforming, is divided into a plurality of lower regions, and each lower region is provided with a power supply means and a power feeding means. . Therefore, it is possible to suppress or avoid the occurrence of the high frequency energy concentration phenomenon in the heating region. As a result, it is possible to effectively prevent the occurrence of overheating, dielectric breakdown, etc., and it is possible to manufacture the heat-formed product very efficiently and reliably.

The method for producing a heat-formed product according to the present invention is
In the above method, in the lower region, the high-frequency alternating current is applied to the molding die by rail-shaped power feeding means that are continuously arranged along the movement path, and the molding die is This is a method in which power receiving means for receiving the high-frequency alternating current from the rail-shaped power feeding means in a non-contact manner is provided.

Therefore, in the above-mentioned method, after the molding die has entered the heating region by the moving means, the molding die having the power receiving means moves along the rail-shaped power feeding means as the moving means moves. Therefore, there is an effect that the heating / drying process can be smoothly and surely continued until the molding die passes through the heating region, that is, until the power receiving unit is detached from the power feeding unit.

The method for producing a heat-formed product according to the present invention is
In the above method, the power receiving unit is formed in a flat plate shape, and the rail-shaped power feeding unit has a facing surface facing the power receiving unit. The flat plate power receiving unit faces the facing surface. This is a method of applying a high frequency alternating current in a non-contact manner.

Therefore, in the above method, the capacitor is formed by the power receiving means, the facing surface facing the power receiving means, and the space between them. As a result, it is possible to supply power to the continuously moving molds in a non-contact manner, and it is possible to smoothly and reliably continue the heating / drying process.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means or power receiving means, along the moving path of the mold, so as to change the application level of the high frequency alternating current applied to the mold via the power receiving means, In this method, the facing area is changed.

Therefore, in the above method, since the level of power supply is changed, the heating level of the forming die can be adjusted. As a result, by suppressing excessive heating, it becomes possible to avoid scorching and sparks of the molded product, improve the moldability of the molded product, and obtain the desired physical properties of the finished product. Play. In particular, since the stepwise heat treatment can be carried out at the first or last stage of the heat molding, there is an effect that the molding raw material can be appropriately heat molded.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means is formed so that the area of the facing surface changes along the movement path.

Therefore, in the above method, since the area of the facing surface is changed, the capacitance of the capacitor formed by the power receiving means, the facing surface, and the space therebetween also changes. As a result, it is possible to change the power supply level to change the heating to the heat-molded product, and it is possible to improve the moldability of the heat-molded product and obtain the desired physical properties of the finished product. Play.

The method for producing a heat-formed product according to the present invention is
In the above method, the rail-shaped power feeding means has a facing interval along the moving path of the molding die so as to change an application level of a high-frequency alternating current applied to the molding die via the power receiving means. It is a method that is formed to change.

Therefore, also in the above method, it is possible to adjust the heating level of the molding die by changing the power supply level. As a result, by suppressing excessive heating, it becomes possible to avoid scorching and sparks of the molded product, improve the moldability of the molded product, and obtain the desired physical properties of the finished product. Play. In particular, since the stepwise heat treatment can be carried out at the first or last stage of the heat molding, there is an effect that the molding raw material can be appropriately heat molded.

The method for producing a heat-formed product according to the present invention is
In the above method, the length of the lower region is set such that the variation rate of the continuously moving mold heated in the entire lower region is less than 0.5.

Further, in the above method, when the lower region corresponds to a region corresponding to at least one of the initial stage and the final stage of heating the molding raw material, the continuously moving molding die. Fluctuation rate of 0.1
It is preferable to set the length of the lower region so that the length is less than 1.

Therefore, in the above method, it is possible to reduce the variation in the number of molds for dielectrically heating by applying a high-frequency alternating current in one lower region, and thus it is possible to stabilize high-frequency tuning. Becomes In particular, it is possible to reduce the variation in the number of molds for dielectric heating at the initial stage or the final stage of the heat molding in which the tuning of the high frequency tends to be unstable. Therefore, it is possible to further stabilize the high frequency tuning, and as a result, it is possible to improve not only the energy efficiency but also the occurrence of sparks.

The method for producing a heat-formed product according to the present invention is
In the above method, the molding die is composed of a plurality of mold pieces, and the plurality of mold pieces can be divided into a block of a feed electrode to which power is fed from a power feeding means and a block of a ground electrode which is grounded. This is a method in which these blocks are insulated from each other.

Therefore, in the above method, it is possible to perform dielectric heating on the forming raw material by applying a high frequency from the supplying electrode while sandwiching the forming raw material between the supply electrode and the ground electrode. Play. Moreover, since the molding die is composed of a plurality of mold pieces and can be divided into a block of the feed electrode and a block of the ground electrode without fail, by applying a high frequency to the molding raw material, the molding raw material It also has the effect of reliably performing dielectric heating.

The method for producing a heat-formed product according to the present invention is
In the above method, the molding die is an integral molding die formed by integrating a plurality of molding dies.

Therefore, in the above method, a large number of molding dies can be moved to the heating region at one time, because a large number of molding dies are integrated into one molding die.
As a result, it is possible to improve the production efficiency of the molded product.

The method for producing a heat-formed product according to the present invention is
In the above method, in at least a part of the heating region, dielectric heating by applying the high-frequency alternating current and external heating by an external heating unit are used together.

Therefore, in the above method, dielectric heating and external heating are used together in at least a part of the heating region.
For the molding raw material, rapid heating due to dielectric heating,
Gradual heating due to heat conduction derived from external heating will be performed at the same time. As a result, the raw material for molding can be heated more reliably and sufficiently.

The method for producing a heat-formed product according to the present invention is
In the above method, the heating region further includes a high frequency application suspension region for temporarily suspending application of the high frequency alternating current.

Therefore, in the above method, it is not necessary to provide a power feeding means or the like for applying a high frequency in the high frequency application suspension area. Therefore, it is possible to design the heating equipment so as not to apply the high frequency to the region where the high frequency is easily localized, and thus it is possible to more reliably suppress or avoid the occurrence of the high frequency energy concentration phenomenon. Play. In addition, by providing a high frequency application suspension region in a portion where the power supply means or the like is relatively difficult to arrange, it is possible to further simplify the configuration of the heating equipment.

Further, when the dielectric heating and the external heating are used together, in the high frequency application suspension region, the gentle heating is performed only by the external heating. Therefore, by setting the high frequency application suspension region according to the characteristics of the molding raw material, it is possible to improve the moldability and obtain desired physical properties of the finished product. Further, by setting the high frequency application suspension region in the portion where the electrical characteristics of the molding raw material change most drastically, it is possible to avoid the phenomenon of high frequency energy concentration. In addition, a gentle heat treatment can be performed only by external heating in the preceding stage of the lower region to which the highest output high frequency is applied in the heating region. Therefore, there is an effect that the molding raw material can be appropriately heat-molded.

The method for producing a heat-formed product according to the present invention is
In the above method, the high frequency application pause region included in the heating region is set to a region corresponding to at least one of the initial stage and the final stage of heating the forming raw material.

Therefore, in the above method, the high frequency application pause region is provided in at least one of the initial stage and the final stage of the heat molding, so that heating according to the molding raw material becomes possible. As a result, it is possible to improve the quality of the obtained heat-formed product and the productivity.

The method for producing a heat-formed product according to the present invention is
In the above method, in the heating region, the conditions for applying the high-frequency alternating current to the forming die in each lower region are set to be different from each other.

Therefore, in the above method, since the high frequency wave is applied to each lower region under different conditions, heating can be performed under each lower region under different conditions. Therefore, it is possible to set the application conditions that can suppress or avoid the concentration of high-frequency energy in the entire heating region, and it is also possible to heat the molding die under better conditions, so that the molding raw material can be heat-molded more appropriately. There is an effect that can be done.

The method for producing a heat-formed product according to the present invention is
In the above method, the application conditions of the high frequency alternating current include the output of the high frequency alternating current in the entire lower region, the output of the high frequency alternating current applied to one mold, and the length of the lower region. The method includes at least one of them.

Therefore, in the above method, the heating condition in the lower region can be changed by setting at least one of the above conditions to be different in each lower region. As a result, not only the concentration of high-frequency energy can be suppressed or avoided, but also the raw material for molding can be thermoformed more appropriately.

The method for producing a heat-formed product according to the present invention is
In the above method, the conditions for applying the high-frequency alternating current are set according to the characteristics of the forming raw material that change due to the application of the alternating current.

Therefore, in the above method, it is possible to apply an alternating current under different conditions in each subregion depending on the properties of the molding raw material and the molded product obtained by heating. Therefore, it is possible not only to suppress or avoid the concentration of high-frequency energy, but also to add a more appropriate amount of heat to the molding raw material, and to heat-mold the molding raw material even more appropriately. Produce an effect.

The method for producing a heat-formed product according to the present invention is
In the above method, a starchy water-containing raw material containing at least starch and water and having fluidity or plasticity is used as the raw material for molding, and a fired product is produced as a heat-formed product.

Therefore, in the above method, since the method for producing a heat-formed product according to the present invention is used when a water-containing raw material containing the above starchy substance and water is heat-formed to produce a fired product, a high-quality fired product is used. Has the effect of being able to be manufactured with high production efficiency.

The method for producing a heat-formed product according to the present invention is
In the above method, wheat flour is used as the starchy material of the starchy water-containing raw material, and the baked product is
It is a method of forming baked confectionery mainly composed of wheat flour.

Therefore, in the above method, when a starchy water-containing raw material using wheat flour as a starch material is baked to produce a molded baked confectionery such as an edible container, a cookie or a biscuit, the heat-molded product according to the present invention is used. Since the manufacturing method is used, it is possible to produce a high quality molded baked confectionery with high production efficiency.

The method for producing a heat-formed product according to the present invention is as follows:
In the above method, a conveyor means rotatably stretched around a plurality of support shafts is used as the moving means.

Therefore, in the above method, since the molding die can be efficiently moved to the heating region, the production efficiency of the molded product can be improved. Further, since it can be continuously rotated and moved like an endless track, it is possible to reduce the installation space of the manufacturing equipment.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an example of a schematic configuration of a manufacturing apparatus used in a manufacturing method according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a schematic configuration of the manufacturing apparatus shown in FIG.

3 (a) and 3 (b) are perspective views showing an example of an integrated mold used in the manufacturing apparatus shown in FIG.

4 (a) and (b) are perspective views showing another example of the integrated mold used in the manufacturing apparatus shown in FIG.

FIG. 5A is an overhead view showing an example of the configuration of a cup cone as a molded product manufactured by the manufacturing method according to the present invention, and FIG. 5B is a D-D arrow of FIG. FIG.

FIG. 6 (a) is an overhead view showing an example of the structure of a waffle cone as a molded product manufactured by the manufacturing method according to the present invention, and FIG. 6 (b) is an EE arrow of (a). FIG.

FIG. 7A is an overhead view showing an example of the configuration of a tray as a molded product manufactured by the manufacturing method according to the present invention, and FIG. 7B is a view taken along the line FF of FIG. FIG.

8A and 8B are schematic diagrams showing an example of the layout of the arrangement of the conveyor section included in the manufacturing apparatus shown in FIG.

9A and 9B are schematic diagrams showing an example of the configuration of a gas heating unit as an external heating unit included in the manufacturing apparatus shown in FIG.

10 (a), (b), and (c) are schematic diagrams showing a configuration of a power supply / reception unit included in the manufacturing apparatus shown in FIG.

11A and 11B are schematic diagrams showing an example of a more specific configuration of the power supply / reception unit shown in FIG.

12 is a schematic diagram showing another example of the schematic configuration of the manufacturing apparatus shown in FIG.

13 is a schematic diagram showing still another example of the schematic configuration of the manufacturing apparatus shown in FIG.

FIG. 14 is a schematic diagram showing an example of a schematic configuration of a manufacturing apparatus used in a manufacturing method according to another embodiment of the present invention.

15 is a schematic diagram showing another example of the schematic configuration of the manufacturing apparatus shown in FIG.

16 is a schematic diagram showing another example of the schematic configuration of the manufacturing apparatus shown in FIG.

FIG. 17 is a schematic diagram showing an example of a schematic configuration of a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention.

18 is a schematic view showing another example of the schematic configuration of the manufacturing apparatus shown in FIG.

19 (a) and (b) are schematic diagrams showing an example of the configuration of a gas heating unit as an external heating means included in the manufacturing apparatus shown in FIG.

20 (a) and 20 (b) are schematic views showing an example of the layout of the arrangement of the conveyor units included in the manufacturing apparatus used in the manufacturing method according to still another embodiment of the present invention.

21 (a) and 21 (b) are schematic diagrams showing another example of the layout of the arrangement of the conveyor units included in the manufacturing apparatus used in the manufacturing method according to still another embodiment of the present invention. .

22 (a) and (b) are schematic diagrams showing still another example of the layout of the arrangement of the conveyor units included in the manufacturing apparatus used in the manufacturing method according to still another embodiment of the present invention. is there.

23 (a) and (b) are schematic views showing still another example of the layout of the arrangement of the conveyor units included in the manufacturing apparatus used in the manufacturing method according to still another embodiment of the present invention. is there.

FIG. 24 is a schematic diagram showing an example of a schematic configuration of a conventional manufacturing apparatus.

FIG. 25 is a schematic diagram showing an example of a schematic configuration when a conventional manufacturing apparatus is scaled up.

FIG. 26 is a schematic diagram showing an example of a schematic configuration of a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention.

27 is a schematic diagram showing another example of the schematic configuration of the manufacturing apparatus shown in FIG. 27. FIG.

28 (a) and (b) are schematic diagrams showing a state in which a flat power receiving unit is inserted near the entrance of the rail-shaped power feeding unit shown in FIG.

29 (a) and 29 (b) are, in a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention, a flat power receiving unit is inserted near an entrance of a rail-shaped power feeding unit. It is a schematic diagram which shows the state in case of.

30 (a) and (b) are schematic diagrams showing another example of a state in which a flat power receiving unit is inserted near the entrance of the rail power feeding unit in the manufacturing apparatus shown in FIG. 29. Is.

31 (a) and (b) are schematic diagrams showing a state in which a flat plate-shaped power receiving unit is inserted in the vicinity of the outlet of the rail-shaped power feeding unit shown in FIG.

32 (a) and 32 (b) are, in a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention, a flat power receiving unit is inserted near an outlet of a rail-shaped power feeding unit. It is a schematic diagram which shows the state in case of.

33 (a) and (b) are schematic views showing another example of a state where a flat power receiving unit is inserted near the entrance of the rail power feeding unit in the manufacturing apparatus shown in FIG. 32. Is.

FIG. 34 (a) is a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention,
It is a schematic diagram which shows the fluctuation | variation of the number of insertion of the electric power receiving part inserted in the rail-shaped electric power feeding part containing R site | part, (b) is a graph which shows the fluctuation | variation of the anode current value with the fluctuation | variation of the insertion number of the said electric power receiving part. Is.

FIG. 35 (a) is a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention,
It is a schematic diagram which shows the fluctuation | variation of the number of insertion of the electric power receiving part inserted in the rail-shaped electric power feeding part containing R site | part, (b) is a graph which shows the fluctuation | variation of the anode current value with the fluctuation | variation of the insertion number of the said electric power receiving part. Is.

FIG. 36 (a) is a manufacturing apparatus used in a manufacturing method according to still another embodiment of the present invention,
It is a schematic diagram which shows the fluctuation | variation of the number of insertion of the electric power receiving part inserted in the rail-shaped electric power feeding part which consists of a directly-made site | part, and (b) shows the fluctuation | variation of the anode current value accompanying the fluctuation | variation of the insertion number of the said electric power receiving part. It is a graph.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Heating part 2 Power supply part (power supply means) 3 Power supply part (power supply means / rail-shaped means) 4 Power reception part (power reception means) 5 Integrated mold (integral molding type) 6 Conveyor part (moving means / conveyor means) 7 Mold (Molding die) 8a Cup cone (baked product / heated molded product) 8b Waffle cone (baked product / heated molded product) 8c Tray (baked product / heated molded product) 9 Gas heating unit (external heating means) 12 Electrode block (supply) Electrode 13 Electrode block (ground electrode) 14 Forming raw material 32 Side surface (opposing surface) B Heating zone (heating area) b1, b2, b3, b4, b5 Subzone (lower area) b2-2 ・ d High frequency application pause zone (High frequency application pause area) b1-1 External heating single zone (high frequency application pause area) b5-1 External heating single zone (high frequency application pause area)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A23L 1/00 A23L 1/00 A A23P 1/10 A23P 1/10 H05B 6/48 H05B 6/48 (72 ) Inventor Toshitaka Haruta 1-67-1-405 F-term, Minami Kusuha, Hirakata-shi, Osaka (reference) 3K086 AA05 AA08 BA09 DB30 4B014 GB11 GE13 GG02 GP14 GQ05 GU07 4B035 LE12 LG35 LP01 LP16 LP34 LT01 LT11 4B048 PE03 PL07 PS13

Claims (19)

[Claims] 1. A molding raw material is charged into a mold having at least conductivity, and a plurality of molds are continuously moved along a moving path while moving from a heating region provided along the moving path. In the method for producing a hot-molded product in which a molding raw material is molded by dielectric heating by continuously applying a high-frequency alternating current to the molding die in a non-contact manner, the heating region is divided into a plurality of lower regions. And at least the above-mentioned power supply means and power supply means are provided in each of the lower regions, respectively. 2. In the lower region, the high-frequency alternating current is applied to the molding die by rail-shaped power feeding means continuously arranged along the movement path, and the molding die is The method for producing a hot-molded product according to claim 1, further comprising power receiving means for receiving the high-frequency alternating current from the rail-shaped power feeding means in a non-contact manner. 3. The power receiving means is formed in a flat plate shape, and the rail-shaped power feeding means has a facing surface facing the power receiving means. The flat plate power receiving means is provided on the facing surface. The method for producing a heat-formed product according to claim 2, wherein a high-frequency alternating current is applied in a non-contact manner by facing each other. 4. The rail-shaped power feeding means or power receiving means is arranged along a moving path of the molding die so as to change an application level of a high frequency alternating current applied to the molding die via the power receiving means. The method for producing a heat-formed product according to claim 3, wherein the opposing areas are formed so as to change. 5. The method of manufacturing a heat-formed product according to claim 4, wherein the rail-shaped power feeding means is formed such that the area of the facing surface changes along the moving path. 6. The rail-shaped power feeding means is arranged along a moving path of the molding die so as to change an application level of a high frequency alternating current applied to the molding die via the power receiving means.
The method for producing a heat-formed product according to claim 3, wherein the facing interval is formed so as to change. 7. The length of the lower region is such that the variation rate of the continuously moving mold heated in the entire lower region is 0.
The method for producing a heat-formed product according to any one of claims 1 to 6, wherein the heat-formed product is set to be less than 5. 8. When the lower region corresponds to a region corresponding to at least one of an initial stage and a final stage of heating a molding raw material, the variation rate of the continuously moving mold is: The method for producing a thermoformed product according to claim 7, wherein the length of the lower region is set so as to be less than 0.1. 9. The mold comprises a plurality of mold pieces,
The plurality of mold pieces can be divided into a block of a feed electrode which is fed from a feeding means and a block of a ground electrode which is grounded, and these blocks are insulated from each other. The method for producing a heat-formed product according to any one of claims 1 to 8. 10. The method for producing a heat-formed product according to claim 9, wherein the molding die is an integral molding die formed by integrating a plurality of molding dies. 11. At least a part of the heating region is characterized in that dielectric heating by applying the high-frequency alternating current and external heating by external heating means are used in combination. The method for producing a heat-formed product according to item 1. 12. The heating region further includes a high-frequency application suspension region for temporarily suspending application of the high-frequency alternating current, according to any one of claims 1 to 11. Method for producing heat-formed product. 13. The high frequency application pause region included in the heating region is set to a region corresponding to at least one of an initial stage and a final stage of heating the molding raw material. The method for producing a heat-formed product. 14. The heating region is set such that the conditions for applying the high-frequency alternating current to the forming die in the respective lower regions are set to be different from each other. The method for producing a heat-formed product according to item. 15. The conditions for applying the high-frequency alternating current include:
At least one of an output of a high frequency alternating current in the entire lower region, an output of a high frequency alternating current applied to one molding die, and a length of the lower region are included. 15. The method for producing a heat-formed product according to 14. 16. The condition for applying the high-frequency alternating current is set according to the characteristics of the forming raw material which changes with the application of the alternating current.
A method for producing the heat-formed product described. 17. A starchy water-containing raw material which contains at least starch and water and has fluidity or plasticity is used as the raw material for molding, and a fired product is produced as a heat-formed product. The method for producing a heat-formed product according to any one of claims 1 to 16. 18. The heat-formed product according to claim 17, wherein wheat flour is used as the starchy material of the starchy water-containing raw material, and the baked product is a molded baked confectionery containing wheat flour as a main component. Method. 19. The heat-formed product according to claim 1, wherein a conveyor means rotatably stretched around a plurality of support shafts is used as the moving means. Production method.