JPH09121818A - Forming and heating of kneaded product and forming and heating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable heating of a kneaded product while conveying the kneaded product by optimum energizing conditions. SOLUTION: This apparatus has a rotary type forming part 10 for forming a kneaded product W in a prescribed form and a joule heating part 20 having plural roller electrodes 21 arranged in the horizontal direction and mutually paralleled and a finishing heating part 30 for heating the kneaded product W in a vertical state. The kneaded product W formed by the rotary type forming part 10 is conveyed from the joule heating part 20 to the finishing heating part 30 by a conveyer 40. A holder for holding a spit member 50 to be inserted into the kneaded product W is provided every prescribed intervals on the conveyer 40. Since the spit member 50 is inserted into the kneaded product in the joule heating part 20, the kneaded product W holds prescribed shape without causing deformation of the kneaded products.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding and heating technique for a kneaded product in which a kneaded product is formed into a predetermined shape and heated while being conveyed while being inserted into a skewer.

[0002]

2. Description of the Related Art There is a kneaded product in which a paste, which is a material for a kneaded product, is formed into a predetermined flat shape by imitating the shape of a bamboo leaf, and such a kneaded product is formed into a predetermined shape by a forming device and then formed into a shape. I try to heat it on the skewer.

A technique has been developed in which this heating is performed by Joule heat generated when electricity is applied to the kneaded product.
As a technique for heating the bamboo grass with Joule heat, for example, as shown in Japanese Patent Application Laid-Open No. 5-41963, in order to continuously heat the kneaded product, a first and a second endless belt each comprising an endless belt are used. In this case, the kneaded product is energized while being conveyed while being sandwiched between the two belt-shaped electrodes.

When a belt-shaped electrode is used to energize a kneaded product formed into a predetermined flat shape by imitating the shape of a bamboo leaf, the kneaded product is continuously supplied from the start of energization to the end. Will be energized. On the other hand, a plate-shaped electrode having a predetermined length and moving toward and away from each other is used.
A heating device of a type in which a kneaded product is heated by energizing the kneaded product while sandwiching the kneaded product between the two is also developed. In addition, JP-A-5-1375
Japanese Patent Publication No. 41 discloses a heating device for electrically heating a kamaboko using a carrier in which an electrode plate is attached to an endless belt at predetermined intervals.

[0005]

When a kneaded product is energized by using a belt-shaped electrode as in the prior art, the kneaded product is continuously energized from the beginning to the end of energization. on the other hand,
When plate-shaped electrodes are used to bring them close to each other and sandwich the kneaded product, it is not possible to heat the kneaded product while continuously transporting it, and it is not possible to heat multiple kneaded products between both plate-shaped electrodes. Even if they are sandwiched, the heating operation is batch type.

However, when the plate electrode is used, the kneaded product is not heated while being conveyed,
Although it is not possible to continuously heat the kneaded product, it is possible to change the energization condition from the start of heating of each kneaded product to the end of heating. Depending on the kneaded product, by changing the energization condition from the start of energization to the end of energization, it may be possible to sufficiently heat the inside of the kneaded product to improve the texture and texture. The energization condition cannot be changed by continuous heating.

Further, as described above, when the belt-shaped electrode is used, if the thickness of the electrode is increased, the belt cannot be driven smoothly, so that the thickness of the belt-shaped electrode must be reduced. I don't get. However, when using a thin belt-shaped electrode, an attempt has been made to use a guide roller for preventing the deformation of the belt-shaped electrode so that the belt-shaped electrode is surely brought into contact with the surface of the kneaded product. However, the belt-shaped electrode has a problem that the durability is limited.

An object of the present invention is to enable the kneaded product to be heated under optimum energization conditions while being conveyed while skewered.

Another object of the present invention is to improve the durability of an electrode for heating a kneaded product while it is being conveyed.

The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

[0011]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

That is, the method for heating a kneaded product of the present invention comprises a step of forming the kneaded product into a predetermined shape, a step of inserting a skewer member into the kneaded product, and a step of forming the kneaded product along a roller electrode group composed of a plurality of roller electrodes. Having a Joule heating step of energizing and heating the kneaded product while conveying it in a horizontal state in a state of being butted against the skewer member, and a finish heating step of heating the kneaded product while holding the kneaded product in a vertical state by the skewer member. Characterize.

Further, the kneaded product heating device of the present invention has a molding part for molding the kneaded product having a recess having a shape corresponding to the shape of the kneaded product, and a columnar outer peripheral surface arranged in the horizontal direction and parallel to each other. Having a plurality of roller electrodes, the Joule heating unit heats the kneaded product by Joule heat by energizing it while conveying the kneaded product formed by the forming unit in a horizontal state, and the finishing heating unit that heats the kneaded product in a vertical state. And holders for holding skewer members to be inserted into the kneaded product are provided at predetermined intervals, and conveying means for conveying the kneaded product from the Joule heating unit to the finishing heating unit in a state where the skewer members are inserted into the kneaded product molded by the molding unit. And having. The Joule heating unit may be provided with a water-permeable film that moves at a speed synchronized with the transfer speed of the transfer means, and the kneaded product may be electrically contacted with the roller electrode via the water-permeable film.

In the present invention, after the kneaded product is molded in the molding section, the kneaded product is conveyed in a state of being inserted into the skewer member until finishing heating is completed. By using this skewer member, the kneaded product is held in a vertical state and finish-heated after the Joule heating process is completed. Moreover, since Joule heating is heated by a plurality of roller electrodes, energization conditions can be varied depending on the transport position, and optimal temperature conditions can be achieved to produce a high-quality kneaded product with a good texture. .

When the posture of the kneaded product is changed from the horizontal state to the vertical state by using the skewer member after the Joule heating, the kneaded product is heated by Joule heat and the shape can be sufficiently maintained. Therefore, the kneaded product does not collapse when the posture is changed.

When the kneaded product is heated by Joule heat by energizing the kneaded product, the kneaded product is conveyed while being held by the water-permeable film so as not to be deformed, and has a predetermined shape. It is possible to obtain a high quality paste product.

When the paste product is heated by Joule, the skewer member may be separated from the conveying means.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a heating device for a paste product which is an embodiment of the present invention. This heating device has a rotary molding unit 10, a Joule heating unit 20, and a finishing heating unit 30, and the kneaded product W molded by the rotary molding unit 10 is continuously conveyed to the finishing heating unit 30 by a conveyor 40. Be transported.

The rotary molding unit 10 is shown in FIGS.
As shown in FIG. 3, the rotary body 11 has a horizontal rotation center axis O, and the rotation body 11 is rotated about the center axis O by a drive shaft 12 driven by a motor (not shown). The rotating body 11 is provided with a plurality of molding recesses 13 having a shape corresponding to the shape of the flat kneaded product to be molded.

FIG. 2 is a transverse cross-sectional view showing the rotary body 11 of the rotary molding unit. In the case shown, the rotary body 11 has a total of eight concave portions 13 at a phase of 45 degrees with respect to the central axis O of rotation.
However, the number of the concave portions 13 can be set arbitrarily by changing the diameter of the rotating body 11. Rotating body 1
A hopper 14 for containing a paste P as a kneaded product material is provided above the hopper 1.
Has a lower end opening facing the outer peripheral surface of the rotating body 11.

Therefore, by injecting the paste P in the hopper 14 into the recess 13 while rotating the rotating body 11 counterclockwise in FIG. 2, a kneaded product W having a predetermined shape corresponding to the recess 13 is formed. It

Ejector members 15 are provided on the rotary body 11 so as to form the bottom surfaces of the respective recesses 13, and the respective ejector members 15 are slidable in the radial direction of the rotary body 11. Each recess 13 is a rotating body 1
When the rotating body 11 is moved from the upper part to the lower part of the rotating body 11 along with the rotation of the rotating body 11, the kneaded product W injected and formed at the upper part is discharged downward at the lower part. A cam member 16 is incorporated.

The cam member 16 shown in FIG. 2 is an eccentric cam and is fixed to a support member (not shown).
The ejector member 15 that has moved to the position of the projection 16a provided at the lower end of the rotating body 6 as shown in FIG.
1 is moved outward in the radial direction of the
The kneaded product W inside is separated from the rotating body 11 and discharged downward.

When the cam member 16 of the illustrated type is used, a spring member (not shown) is attached to the ejector member 15 in order to apply a spring force to the ejector member 15 inward in the radial direction. To do. If a positive cam is used as the cam member 16 and the inner end of the ejector member 15 is engaged with a groove formed in the positive cam,
The ejector member 15 in the concave portion 13 that has moved to the lower portion of the rotating body 11 can be operated radially outward without using a spring.

Further, as the rotating body 11, a main body portion may be formed by an annular member and a frame member, and a large number of molding dies having the recesses 13 may be attached to the main body portion of the rotating body.

The conveyor 40 is a roller chain conveyor in the illustrated case, and is composed of two sprockets 41,
It is hung on 42, and one sprocket is on the drive side and is driven by a motor (not shown). As shown in FIG. 4, holders 43 for supporting the skewer members 50 are attached to the conveyor 40 at predetermined intervals. As shown in FIG. 4, each holder 43
Has a base portion 44 fixed to the conveyor 40 and an opening / closing portion 46 attached to the base portion 44 via a hinge portion 45 so that the opening / closing portion 46 can be opened and closed.
The hinge 45, which is oriented in the transport direction, is rotated about 90 degrees between a horizontal position and a vertical position.

A skewer mounting hole 47 for supporting the skewer member 50 is formed in each opening / closing portion 46. The skewer mounting hole 47 is provided when the opening / closing portion 46 is in a horizontal state.
It is oriented horizontally.

As shown in FIG. 2, the skewer member 50 is automatically inserted into the kneaded product W within a range of a predetermined angle from the lowermost end of the rotating body 11 to the front side in the rotation direction of the conveyor 40. In this way, the skewer member 50 is inserted into the kneaded product W poured into the recess 13 before it reaches the position of the lowermost end of the rotating body, and the skewer member 50 is held at the lowermost position of the holder. It will be mounted on the opening / closing part 46 of 43 at the skewer mounting hole 47. However, in the process of heating in the joule heating unit 20, the skewer member 5
It is also possible to mount the skewer member 50 vertically on the holder 43 immediately before it is loaded into the finishing heating unit 30, without mounting 0 on the holder 43.

In order to insert the skewer member 50 into the kneaded product W, a rotary member (not shown) for supporting the skewer member 50 in a horizontal state is provided, and a cam member (not shown) is disposed adjacent to the rotary member to rotate the skewer member 50. As the body rotates, the skewer member 50 supported by the body is pressed at its base end by the cam member. As a result, the skewer member 50 is inserted into the kneaded product W from the tip side. The situation where the skewer member 50 is inserted into the kneaded product W is as shown in FIG.

Since the kneaded product W is Joule heated while the skewer member 50 is inserted, the skewer member 50 acts to reinforce the kneaded product W at that time, the shape of the kneaded product W is maintained, and the kneaded product W is not deformed. To be prevented.

Below the rotary body 11, the paste product W taken out from the recess 13 of the rotary body 11 is heated by the Joule heating unit 2.
A roller conveyor 18 is provided in which a plurality of rollers 17 are arranged in parallel with each other in order to convey them toward 0.

FIG. 5 is an enlarged view showing a portion of the Joule heating section 20, which is formed by a plurality of roller electrodes 21 arranged in parallel with each other at a predetermined interval. It has a group 22. As shown in FIG. 6, a power supply 23 is electrically connected to each roller electrode 21, and a voltage is supplied to the roller electrodes 21 adjacent to each other. As the power source 23, for example, a power source of about 50 Hz to 50 kHz is used.

A strip-shaped water-permeable film 24 having a width substantially corresponding to the lengths of the roller conveyor 18 and the roller electrode group 22 is hung from the upstream end of the roller conveyor 18 toward the downstream end of the roller electrode group 22. . As shown in FIGS. 1 and 5, the water-permeable film 24 avoids direct contact between the kneaded product W and the roller conveyor 18 and the roller electrode 21, and keeps the kneaded product W in a substantially horizontal state without bending. It is provided for this purpose and is endless or endless. A plurality of guide rollers 25 are provided below the roller electrode group 22 in order to guide the portion that passes through the roller electrode group 22 and returns to the upstream end of the roller conveyor 18.

The water-permeable film 24 may be any thin film having a property of containing water such as cellophane, paper, cloth, or non-woven fabric, and is usually a hydrophilic film, a water-absorbent film, or Various films and film materials, which are also called water retention films, can be used. In this specification, these films are collectively referred to as water-permeable films. Water is supplied to the water-permeable film 24 by a water supply means (not shown). When a water tank containing water is used as the water supply means, the water-permeable film 24 is passed through the water tank. A spray may be used as the water supply means, and the water is supplied to the water-permeable film 24 from the spray.

To convey the kneaded product W, the roller conveyor 18 and the roller electrode 21 are driven by a motor (not shown). However, the water permeable film 24 may be conveyed and driven by driving one of the guide rollers 25 by a motor, and thereby the roller conveyor 18 and the roller electrode 21 may follow and rotate.

Kneaded product W held on the skewer member 50
By setting the moving speed of the conveyor 40 and the moving speed of the water-permeable film 24 to the same speed,
Water-permeable film 24 with skewer member 50 inserted
Is transported in a horizontal state. At this time, a voltage is supplied to a portion of the kneaded product W located between the two roller electrodes 21 adjacent to each other, and the portion is electrically heated by Joule heat. At the time of heating, since the kneaded product W itself is heated by the heat generated by the Joule heat,
It will be heated sufficiently to the desired temperature to the center. In addition, since the skewer member 50 is inserted into the kneaded product W, the kneaded product W reliably retains its shape when energized.

FIG. 7 is a view showing the finishing heating section 30.
A carry-in port 31 is formed in the finishing heating unit 30.
The carry-out port 32 is formed as shown in FIG. Conveyor 4
0 is arranged so as to penetrate from the carry-in port 31 to the carry-out port 32. The finish heating unit 30 has a heater, that is, a heater 3 that uses electricity or gas as a heat source in order to mainly heat the surface of the kneaded product W conveyed by the conveyor 40.
3 are provided. Radiant heat from the heater 33 or the like creates a heating atmosphere in the finish heating section 30, and a finished surface slightly harder than the inside is formed on the surface of the kneaded product W. The heaters 33 may be positioned on both sides of the kneaded product W to be conveyed, and may be disposed in the finishing heating section 30.

In the joule heating section 20, the conveyor 4
When 0, the kneaded product W is conveyed in a horizontal state, but the posture of the kneaded product W is changed from the horizontal state to the vertical state between the joule heating unit 20 and the finish heating unit 30.
As shown by the arrow in FIG. 7, the opening / closing part 4 of the holder 43 moved to the front of the finishing heating part 30 to change the posture.
6 is rotated from a horizontal state to a vertical state.

In this way, after the kneaded product W is electrically heated in the Joule heating section 20 including the inside, the kneaded product W is conveyed as it is to the finishing heating section 30 by the conveyor 40.

FIG. 8 shows the Joule heating unit 20 of this embodiment.
Is a diagram showing a modified example of the above, in this case, it has a lower roller electrode group 22a composed of a plurality of roller electrodes 21a and an upper roller electrode group 22b composed of a plurality of roller electrodes 21b. The roller electrodes 21a forming the lower roller electrode group 22a are rotatably attached to the support plate 26a, and the roller electrodes 21b forming the upper roller electrode group 22b are rotatably attached to the support plate 26b.

Further, the lower roller electrode group 22a is provided with a water permeable film 24a including the roller conveyor 18, and the upper roller electrode group 22b is also provided with a water permeable film 24b.
Is provided. However, the water permeable film 24b may not be provided on the upper roller electrode group 22b.

As shown in the drawing, each roller electrode 21a constituting the lower roller electrode group 22a and each upper roller electrode 21b constituting the upper roller electrode group 22b are arranged in pairs corresponding to each other. A power source 23 similar to that shown in FIG. 6 is connected to the pair of roller electrodes at the top and bottom to supply a voltage. In the case shown in the figure, the roller electrodes of all pairs are supplied with the same voltage and the same frequency of electric power, but different voltage and frequency of each pair of roller electrodes forming a pair are supplied. You may make it supply electric power.

In this case, in the process of conveying the paste product W,
By energizing the pair of upper and lower roller electrodes 21a and 21b, an electric current flows through the kneaded product W. At that time, the pair of roller electrodes 21 of the paste product W are paired.
An electric current will flow in the part where a and 21b contact.
Then, since the kneaded product W is conveyed, the portion where the current flows moves toward both roller electrodes of the next pair on the downstream side. When the voltage and the current are made different between the roller electrode on the upstream side and the roller electrode on the downstream side, optimum Joule heating can be performed according to the temperature condition of the kneaded product W.

FIG. 9A is a diagram showing another embodiment of the Joule heating section 20, in which the pair of roller electrodes 21a and 21b are arranged so as to be displaced in the carrying direction. Lower roller electrode 21a and upper roller electrode 21
b are mutually displaced in the transport direction so that the roller electrodes 21a, 21
b are arranged in a staggered pattern.

FIG. 9 (b) is a diagram showing another embodiment of the Joule heating section 20, in which case the lower roller electrodes 21a and the upper roller electrodes 21b are connected to each other. Insulating rollers 27 made of resin or the like are arranged.

FIG. 9C is a diagram showing another form of the connection method of the power source 23 when the roller electrode groups 22a and 22b are arranged on both upper and lower sides as shown in FIG. In some cases, the roller electrodes 21 that are paired up and down
Power is supplied to a and 21b, and the paste product W
The voltage is also supplied to a pair of adjacent roller electrodes that are adjacent to each other in the conveyance direction. However, as described above, voltage may be supplied to all the lower roller electrodes 21a and all the upper roller electrodes 21b.

Although the invention made by the inventor has been specifically described based on the embodiments of the present invention, the present invention is not limited to the above embodiments, and various modifications may be made without departing from the gist of the invention. Needless to say, it can be changed.

For example, the water permeable films 24, 24a,
24b is endless, that is, endless, but the water permeable films 24, 2 are provided on the supply reel provided on the upstream side.
The water permeable film may be conveyed by winding 4a and 24b in advance and winding them on a take-up reel provided on the downstream side. Further, in the case shown in the drawing, the lower side of the rotary molding unit 10 and the Joule heating unit 20 are
Although the roller conveyer 18 is disposed between the rotary conveyor and the roller conveyer 18, the kneaded product formed by the rotary forming unit 10 may be immediately heated by the Joule heating unit 20 without using the roller conveyer 18. Further, the conveyor 40 as a conveying means is not limited to the roller chain conveyor as shown in the figure, but various types such as a belt type can be used.

In the illustrated embodiment, when the kneaded product W is heated by Joule, the skewer member 50 is held by the holder 43, but the skewed member 50 is held in a horizontal state and conveyed while being heated by Joule. In the state, the skewer member 50 may be separated from the chain conveyor 40, and the kneaded product W may be made vertical by using the skewer member 50 when being carried into the finishing heating unit 30.

[0051]

Advantageous effects obtained by typical ones of the inventions disclosed in the present application will be briefly described.
It is as follows.

Since the kneaded product is molded by the molding part and the skewer member is inserted into the kneaded product and continuously conveyed to the joule heating part and the finishing heating part, the kneaded product is continuously maintained while maintaining its shape. Can be heated to. Since the portion where each pair of roller electrodes for the kneaded product comes into contact with the kneaded product changes from moment to moment, the energization conditions can be changed in the course of conveying the kneaded product, and the kneaded product can be Joule heated under optimum conditions. In addition, the electrode is a roller-shaped electrode, which makes it possible to maintain a constant contact area for the kneaded product as compared with a belt-shaped electrode, improving the durability of the electrode and obtaining a high-quality product. be able to.

[Brief description of the drawings]

FIG. 1 is a front view showing an apparatus for heating a kneaded product according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a rotary type molding section shown in FIG.

FIG. 3 is a plan view showing a rotary molding unit.

FIG. 4 is a perspective view showing a rotary molding unit and a Joule heating unit.

FIG. 5 is a cross-sectional view showing a Joule heating unit.

FIG. 6 is a schematic diagram showing a power supply system.

FIG. 7 is a perspective view showing a part of a finishing heating unit.

FIG. 8 is a cross-sectional view showing a Joule heating unit according to another embodiment.

9 (a) and 9 (b) are cross-sectional views showing a Joule heating unit according to another embodiment, and FIG. 9 (c) is a cross-sectional view showing a power supply system according to another embodiment. .

[Explanation of symbols]

 10 Rotary Forming Section 11 Rotating Body 12 Drive Shaft 13 Recess 14 Hopper 15 Ejector Member 16 Cam Member 16a Projection 17 Transfer Roller 18 Roller Conveyor 20 Joule Heating Section 21, 21a, 21b Roller Electrode 22, 22a, 22b Roller Electrode Group 23 power source 24, 24a, 24b water-permeable film 25 guide roller 27 insulating roller 30 finishing heating part 31 carry-in inlet 32 carry-out outlet 40 conveyor (conveying means) 41, 42 sprocket 43 holder 44 base 45 hinge part 46 opening / closing part 47 skewer mounting hole 50 skewer member P paste W paste product

Claims (3)

[Claims] 1. A molding step of forming a kneaded product into a predetermined shape, a step of inserting a skewer member into the kneaded product, and a state in which the kneaded product is butted against the skewer member along a roller electrode group composed of a plurality of roller electrodes. A kneaded product characterized by comprising a Joule heating step of heating the kneaded product by energizing and heating the kneaded product while being conveyed in a horizontal state, and a finish heating step of heating the kneaded product while holding the kneaded product in a vertical state by the skewer member. Molding heating method. 2. A molded part for molding a kneaded product, and a plurality of roller electrodes arranged in a horizontal direction and having a cylindrical outer peripheral surface and parallel to each other. A Joule heating unit that heats the kneaded product by Joule heat by energizing while conveying in a state, a finish heating unit that heats the kneaded product in a vertical state, and a holder that holds a skewer member to be inserted into the kneaded product at predetermined intervals. Molding of a kneaded product, which is provided, and has a conveying unit that conveys the kneaded product from the Joule heating part to the finishing heating part in a state where the skewer member is inserted into the kneaded product formed by the forming part. Heating device. 3. The apparatus for forming and heating a kneaded product according to claim 2, wherein the joule heating section has a water permeable film that moves at a speed that is synchronized with a transfer speed of the transfer means, and the kneaded product has the water permeable property. A forming and heating apparatus, wherein the roller electrode is electrically contacted through a film.