JP2002360430A - Boiled egg manufacturing machine and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boiled egg manufacturing machine and a manufacturing method thereof capable of efficiently making boiled eggs at low costs by heating a liquid containing raw eggs at a high speed using induction heating. SOLUTION: The boiled egg manufacturing machine comprises a vessel for storing a specified number of raw eggs, a heating means integrally or separately arranged on the vessel and capable of heating the liquid in the vessel, a heating coil capable of making the heating means perform induction heating, and a transistor inverter for supplying a high-frequency current to the heating coil. The liquid is heated using induction heating by the heating means and the raw eggs contained in the vessel are boiled. The heating means is formed of a metal ball rotatably stored in the vessel. An eggshell peeling means for peeling eggshells of boiled eggs using suction action, which are boiled using the induction heating by the heating means, and/or a scratch forming means for forming scratches of a specified depth on the surface of the raw eggs is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiled egg producing machine and a method for producing a large amount of boiled eggs for use in a convenience store lunch box in a short time.

[0002]

2. Description of the Related Art In recent years, many boiled eggs have been used for lunch boxes and the like due to the expansion of convenience stores and the like, and the demand for boiled eggs has been rapidly increasing. Boiled eggs are boiled in a high-pressure pot using heat, and then the boiled eggs are shelled by hand using, for example, an internal worker.

[0003]

However, in such a method for producing boiled eggs, raw eggs are boiled by heating water in a high-pressure pot using a thermal power, so that water is removed. It takes a long time to heat to a predetermined temperature, so that the efficiency of the manufacturing operation is inferior. In addition, the use of thermal power requires careful attention to the operation, and the manufacturing operation tends to be troublesome.

In addition, since the boiled eggs boiled in a high-pressure pot are taken out to the internal profession and shelled manually, the shelling work itself becomes troublesome, and the shelling work itself and the transportation to the internal employment place are required. In such cases, maintenance of hygiene tends to be troublesome, and as a result, the production cost of boiled eggs tends to increase.

The present invention has been made in view of such circumstances, and has as its object to produce boiled eggs efficiently and inexpensively by using induction heating to rapidly heat a liquid containing raw eggs. It is an object of the present invention to provide a boiled egg producing machine and a method for producing the same. Another object of the present invention is to provide a boiled egg manufacturing machine which can automate shelling and can produce shellless boiled eggs at low cost.

[0006]

In order to achieve the above object, according to the present invention, a boiled egg producing machine according to the first aspect of the present invention comprises a container for accommodating a predetermined number of raw eggs, and an integral or separate container for the container. Heating means that can be arranged in and heat the liquid in the container,
A heating coil capable of inductively heating the heating means, and a transistor inverter for supplying a high-frequency current to the heating coil, wherein the induction heating of the heating means heats the liquid to produce raw eggs contained in the liquid. It is characterized by boiling.

[0007] In the case of this manufacturing machine, it is preferable that the heating means is formed of a metal ball rotatably accommodated in a container, as in the second aspect of the present invention. As in the invention described in Item 3, it is preferable to provide a shell peeling means for peeling the boiled egg shell boiled by the induction heating of the heating means by using a suction action. In addition, it is preferable to provide a scratching means for scratching the surface of the raw egg at a predetermined depth, as in the invention described in claim 4.

According to a fifth aspect of the present invention, there is provided a method for producing a boiled egg, comprising the steps of: making a wound of a predetermined depth on the shell surface of the raw egg; setting the damaged raw egg in a container; Heating the heating means arranged separately or separately by high-frequency current supplied to the heating coil from the transistor inverter, boiling the raw egg with the heated liquid, and boiling the boiled egg shell. Stripping using a suction action.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a configuration diagram of an embodiment of a boiled egg making machine according to the present invention. In FIG. 1, a boiled egg manufacturing machine 1 (hereinafter, simply referred to as a manufacturing machine 1)
Supplies a pot 2 as a container, a heating coil 3 arranged outside the pot 2, a transistor inverter 4 for supplying a high-frequency current to the heating coil 3, and a water 6 as a liquid in the pot 2. A water supply / drainage device 5 for draining and draining, a needle insertion device 10 (scratching means) for sticking a needle 9 into a shell surface of a raw egg 8 set on a setting table 7 to scratch the shell, and a shell set on a setting table 11 It has a shell removing device 14 (shell removing means) for removing the shell by sucking and sucking the suction cup 13 on the shell surface of the boiled egg 12 and a control device 15 for controlling the above devices.

The pot 2 is made of, for example, stainless steel, and is formed so that a predetermined amount of water 6 is stored by the operation of the water supply / drainage device 5, and a predetermined number of raw eggs 8 can be stored in the water 6. I have. A predetermined number of metal balls 16 as heating means are rollably accommodated in the pan 2, and the metal balls 16 are induction-heated by an eddy current induced by a magnetic flux generated from the heating coil 3. It is formed of a material that can be obtained. The surface of the metal sphere is formed with a smooth surface. For example, the surface of the metal sphere is formed with irregularities to change the flow of the water 6 and the rolling state of the raw egg 8 described later to make the boiling state more uniform. Can also be planned.

The heating coil 3 is formed, for example, by winding a copper pipe outside the pan 2 at a predetermined distance so as to correspond to the outer shape of the pan 2, and both ends of the coil are connected to the transistor inverter 4. The water cooling cable 1 is electrically connected via a water cooling cable 17 and is provided by a cooling water supply device (not shown) provided to the inverter 4.
The cooling water is circulated and supplied into the copper pipe through the pipe 7. The shape of the heating coil 3 may be a circular coil type or a horseshoe type.

The transistor inverter 4 to which the heating coil 3 is connected is, for example, a MOSFET, an IGBT,
And an inverter circuit (not shown) using a semiconductor switching element such as
It is formed so that a high-frequency current having a predetermined output of z to several MHz can be output to the heating coil 3 via the water-cooled cable 17.

The needle insertion device 10 lowers (or stamps) a sharply pointed needle 9 at a predetermined position of a raw egg 8 set on a setting table 7 at a predetermined depth. It is formed to scratch. At this time, as shown in FIG. 3, it is preferable that the depth of the wound 18 is set so as to substantially penetrate the shell 8a of the raw egg 8 and not penetrate the thin skin 8b on the surface of the white body 8c.

The shelling device 14 includes, for example, a compressor or the like, and is provided with a size (eg, L size, M size) of the raw egg 8.
A suction cup 13 of a size corresponding to the size, small size, etc.) is adsorbed on the surface of the boiled egg 12 with a shell, and the suction cup 13 is sucked by a compressor, so that the shell of the boiled egg 12 is formed. ing. The control device 15
Is composed of a microcomputer, a sequencer, and the like, and includes a transistor inverter 4, a needle insertion device 10, a shelling device 1,
4 and the like are controlled according to a predetermined procedure.

Next, an example of a method for producing boiled eggs by the production machine 1 will be described with reference to the process chart of FIG. First, the raw egg 8 is set on the setting table 7 (K101), and the raw egg 8 is set.
Then, the needle piercing device 10 is operated by the control signal of the control device 15 to make a scratch 18 on the shell 8a (K102). Due to the scratching of the raw egg 8 on the shell 8a, air enters the inside of the raw egg 8, and the raw egg 8 in this state is taken out from the set table 7 by a suction device or the like (K103) and placed in the pot 2. It is accommodated (K104).

The steps K101 to K104 are repeated a predetermined number of times, and when a predetermined number of raw eggs 8 are stored in the pan 2, the transistor inverter 4 is operated by a control signal of the control device 15 to supply a high-frequency current to the heating coil 3. Then, the water 6 in the pot 2 is instantaneously heated (K105). At this time, the supply of the high-frequency current to the heating coil 3 causes the metal balls 16 previously housed together with the raw eggs 8 in the water 6 of the pot 2 to be induction-heated,
The heat of the metal spheres 16 is transferred to the water 6, and the water 6 is rapidly heated.

At the time of this heating, the metal balls 16 are heated while rolling in the pot 2 by the magnetic flux of the heating coil 3, and a spiral flow is generated in the hot water (water 6) in the pot 2. The raw egg 8 is rolled and boiled while following, so that a high-speed boiled state at a uniform temperature can be obtained. In addition, since the pot 2 is formed of stainless steel, the pot 2 itself is not heated by induction, and safety of the operation can be achieved.

After the IH instantaneous heating for a predetermined time, the operation of the transistor inverter 4 is stopped, and the boiled boiled egg 12 with the shell is taken out of the pot 2 (K106), and is naturally cooled (or forced) to, for example, a temperature at which shelling is easy. After cooling, the boiled egg 12 is set on the setting table 11 of the shelling apparatus 14 (K107).

Then, by operating the shelling device 14 in response to a control signal from the control device 15, the suction cup 13 is adsorbed on the surface of the boiled egg 12 with the shell, sucks the shell 8a, and is shelled (K108). . At this time, since the shell 8a has been scratched in advance, the shell 8a is easily peeled from the wound 18 and the white body 8c is prevented from being scratched. Take out the shelled boiled egg from the set table 11 (K10
9) As a result, boiled eggs without the shell 8a are manufactured.

As described above, according to the manufacturing machine 1, a predetermined number of the raw eggs 8 with the scratches 18 formed on the shells 8 a by the needle insertion device 10 are stored in the pot 2 together with the metal balls 16, and Heating the water 6 by induction heating of the metal ball 16 by supplying a high-frequency current makes it possible to heat the water 6 by IH instantaneous heating, thereby shortening the heating time of the water 6, and producing boiled eggs. Can be performed efficiently. In particular, since the metal balls 16 and the raw eggs 8 are induction heated while being rolled by the magnetic flux in the pot 2, the water 6 can be heated while generating a flow in the water 6, and the raw eggs 8 can be heated.
Uniform heating is possible, and boiled eggs of uniform quality can be easily produced in a shorter time, and since the raw eggs 8 are boiled while rolling, the yolk 8d is in a centered state, Higher quality boiled eggs are obtained.

In addition, since the raw egg 8 is boiled with the wound 18 made by the needle insertion device 10, the boiled state with the air inside is obtained, and it is difficult to peel the shell due to the expansion of the white body 8c. In addition, a more uniform boiled egg can be obtained while the shelling operation can be automated by the scratches 18 and the shell 8
A boiled egg can be manufactured easily and in a short time. This eliminates the need for manual work such as internal work to remove shells as in the past, greatly improving the workability of shelling operations and preventing the occurrence of hygiene problems during shelling operations and during transportation. Thus, shellless boiled eggs of safe and uniform quality can be easily manufactured.

Further, by appropriately setting the size of the pot 2, a large amount of raw eggs 8 can be boiled at the same time, and the size of the raw eggs 8 can be boiled. The work from setting to shelling can be completely automated. From these facts, it becomes possible to reduce the production cost of shell-free boiled eggs and obtain inexpensive boiled eggs, for example, it is applied to boiled eggs for convenience stores that are used in large quantities and cost reduction is required. Big effect can be expected.

Further, since the induction heating is used as a heating means of the water 6 in the pot 2, the safety can be improved as compared with the conventional thermal power and the like, and the work of the pot 2 itself can be prevented by preventing the pot 2 itself from becoming hot. Safety can be further improved.

In the above embodiment, the raw egg 8 is wounded by the needle piercing device 10 to facilitate the peeling of the shell by using the wound 18, for example, as shown by the two-dot chain line in FIG. As described above, the wounding device 19 interlocked with the shelling device 14
The shell 8a of the boiled egg 12 with a shell can be peeled off while the shell 8a of the shelled boiled egg 12 is scratched or broken with a needle 20 or a hammer of the wounding device 19. Further, each step in the above embodiment is preferably completely automated, but it is of course possible to divide each step or a plurality of steps and automate them. Further, in the above embodiment, the metal balls 16 placed in the pot 2 are used as the heating means. However, other appropriate methods for heating the water 6 in the pot 2 by induction, such as using the pot 2 itself as the heating means, are used. Heating means can be employed. Further, in the above embodiment, the heating coil 3 is arranged at a predetermined distance outside the pan 2, but it is of course possible to integrate the heating coil 3 into the side wall or the bottom wall of the pan 2.

[0025]

As described in detail above, according to the first aspect of the present invention, the liquid in the container is heated by the induction heating of the heating means by the supply of the high-frequency current from the transistor inverter to the heating coil. Since the raw eggs stored in the liquid are boiled, the liquid in which the raw eggs are stored can be heated at high speed by utilizing induction heating, and boiled eggs can be efficiently produced at high quality and at low cost.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the heating means is formed of a metal ball rollably accommodated in a container. By heating and rolling the balls, a flow can be generated in the liquid in the pot, the boiled eggs can be boiled in a uniform state, and cheap and higher quality boiled eggs can be easily obtained.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the shell of the boiled egg boiled by the induction heating of the heating means is peeled off using the suction action. Since the shelling means is provided, the process from boiling the raw egg to shelling can be automated, for example, and a cheaper and more hygienic shelled boiled egg can be easily obtained.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, a scratching means for scratching the surface of the raw egg at a predetermined depth is provided. The shell can be scratched and boiled with air inside, preventing the difficulty of peeling the shell due to the expansion of the white body,
The operability of the shelling operation can be improved, and boiled eggs in a more uniform boiled state can be obtained.

According to the fifth aspect of the present invention, the shell surface of the raw egg is scratched to a predetermined depth, and the raw egg is induction-heated by the high-frequency current supplied from the transistor inverter to the heating coil. By boiling the raw egg with the heated liquid and then peeling off the boiled egg shell using the suction action, the liquid containing the raw egg can be heated at high speed by using induction heating, and the shelling can be performed. It can be carried out automatically, so that shellless boiled eggs of uniform quality can be produced efficiently and inexpensively.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a boiled egg making machine according to the present invention.

FIG. 2 is a process chart showing an example of the manufacturing method.

FIG. 3 is an enlarged view of a main part of the damaged portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Boiled egg manufacturing machine 2 Pot 3 Heating coil 4 Transistor inverter 5 Water supply / drainage device 6 Water 8 Raw egg 8a Shell 8b Thin skin 8c White 8d Yolk 9 Needle 10 Needle piercing device 12 Shelled boiled egg 13 Suction cup 14 Shelling device 15 Control device 16 Metal Ball 18 Wound

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yukari Iwamatsu 1600-9, Sakasaka, Iwata-shi, Shizuoka F-term in Miyaden Co., Ltd. (reference) 3K051 AA02 AA08 AB05 AD39 4B042 AC09 AD29 AE10 AG07 AH09 AP03 AT05 4B055 AA28 BA36 CA71 CC04 DA02 DB14

Claims (5)

[Claims] 1. A container for accommodating a predetermined number of raw eggs, heating means arranged integrally or separately in the container to heat the liquid in the container, and a heating coil capable of inductively heating the heating means. And a transistor inverter for supplying a high-frequency current to the heating coil, wherein the induction heating of the heating means heats the liquid to boil the raw eggs contained in the liquid. . 2. The apparatus according to claim 1, wherein said heating means is formed of a metal ball rotatably accommodated in a container.
Boiled egg making machine as described. 3. The boiled egg producing machine according to claim 1, further comprising shelling means for peeling the shell of the boiled egg boiled by the induction heating of the heating means by using a suction action. 4. The boiled egg producing machine according to claim 1, further comprising a scratching means for scratching the surface of the raw egg at a predetermined depth. 5. A step of making a wound of a predetermined depth on the shell surface of a raw egg, setting the damaged raw egg in a container, and using a heating means integrally or separately disposed in the container as a transistor. Induction heating with a high-frequency current supplied to a heating coil from an inverter, a step of boiling the raw egg with the heated liquid, and a step of peeling off the boiled boiled egg shell using suction action. A method for producing a boiled egg, comprising: