JPH0473987B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a method for continuously producing aged eggs in which the pores of the eggshell are sealed in a dry process, and more particularly, to a method for continuously producing aged eggs in which the pores in the eggshell are sealed. That is, the present invention relates to a dry continuous egg cooking method for continuously producing whole-boiled eggs and soft-boiled eggs.

(b) Prior Art As is well known, aged eggs are produced by heating them in water. In this case, aged eggs, that is, whole-boiled eggs or soft-boiled eggs, are produced by adjusting the heating temperature and heating time of eggs.

Conventionally, when boiled eggs produced in this way are cut into rounds, it is desirable that the yolk of the egg be located in the center of the egg white, giving it a good appearance, but in order to produce aged eggs in this way, It is necessary to rotate the eggs appropriately during heating to ensure even heating. For example, when producing a small amount of aged eggs, it can be done by appropriately rotating the eggs in boiling water. This is a problem because water easily enters the eggs, and the eggs have a relatively short shelf life.

Moreover, with conventional methods, workers are constantly exposed to danger as they must handle large containers containing boiling water, and eggs must be reheated each time to avoid rapid heating. This was a problem because fuel costs were high.

(c) Structure and operation of the invention Therefore, the object of the present invention is to eliminate the above-mentioned problems by developing a complete system that can continuously produce aged eggs in large quantities without heating them in water as in the conventional case. The present invention provides a method for producing a novel aged egg, that is, a aged egg in which the pores of the eggshell are fused and sealed.

The present invention applies wavelengths within the infrared or far infrared wavelength region to a plurality of eggs supported in adjacent grooves of a plurality of rollers arranged with grooves in the circumferential direction. In a method for producing aged eggs in which the eggs are heated by irradiating the eggs with light, a plurality of rollers are rotated in the same direction and moved, so that each of the rotating rollers is rotated into the concave groove of the adjacent roller. The movably supported eggs are rotated in a direction opposite to the rotational direction of the rollers, and the rotating eggs supported in the grooves of adjacent rollers are moved horizontally with the respective rollers to reach a predetermined position. Maintained at ambient temperature. Light having a wavelength within the infrared or far-infrared wavelength range is guided to an irradiation area, and within the irradiation area, the infrared or far-infrared light is directed from above to the eggs rotating and moving while being supported in the grooves of adjacent rollers. heating the egg by irradiating it with light having a wavelength within the far-infrared wavelength region to coagulate at least the albumen of the egg;
To provide a method for continuously producing aged eggs with sealed pores in the eggshell, characterized in that aged eggs with sealed pores in the eggshell are continuously obtained by sealing the pores in the eggshell.

The reason why infrared rays or far infrared rays are used in the present invention is that infrared rays or far infrared rays have excellent permeability to eggshells, so the yolks and whites inside the eggshells are directly heated to efficiently produce aged eggs in a very short time. It is in the point that it can be done. Moreover, the aged eggs obtained in this manner are extremely hygienic, as the pores of the eggshells are sealed, making them airtight. In the present invention,
The light having a wavelength within the infrared or far infrared wavelength range used is 1 μm to 25 μm, especially,
It is preferable to contain infrared rays and/or far infrared rays in the wavelength range of 2.5 to 10 μm since this includes the water absorption wavelength band and the protein absorption wavelength band.

Therefore, the infrared emitter or far-infrared emitter used in the present invention emits light having a wavelength within the infrared or far-infrared wavelength range, particularly from 1 μm to 25 μm, particularly from 2.5 μm to 2.5 μm. It emits light with a wavelength within the 10 μm wavelength range.

Furthermore, in the present invention, the amount of heating of the egg can be easily controlled by adjusting the distance between the infrared ray emitter or the far-infrared radiator and the egg. Thus, in order to adjust the intensity of the infrared rays or far infrared rays, it is preferable that the infrared rays or far infrared rays are movable with respect to the egg, and the infrared heaters, far infrared heaters, etc. Preferably, the voltage is made adjustable.

In the method for producing aged eggs according to the present invention, it is preferable that the eggs be supported by a rotary transporting cylindrical member in order to constantly rotate the eggs without contacting each other, that is, to rotate the eggs on their own axis. In this case, in order to stably support the egg at a predetermined position between the parallel cylindrical members, it is possible to form a concave groove that extends over the entire circumferential direction of the cylindrical member and conforms to the contour of the egg. preferable.

The size of the groove is such that the egg does not swing and break within the groove, and is preferably a size that is slightly larger than the egg size or smaller.

The present invention uses infrared rays and/or
Alternatively, by using far infrared rays, it is possible to obtain boiled eggs in a short time in the same manner as in the conventional case. This is because when the far infrared rays are irradiated, the far infrared rays can reach the center of the egg through the egg shell, thereby heating not only the outer surface of the egg but also the center. On the other hand, when thermal radiation with a wavelength smaller than infrared rays is used, the surface of the egg is heated excessively compared to the contents, and the heat accumulates around the eggshell, which tends to generate water vapor. The eggshell is easily destroyed, and it takes a long time to obtain a ripened egg, making it unsuitable for use.

In contrast, according to the present invention, eggs can be homogeneously
The infrared rays heat through the eggshell, and the pores of the eggshell and inner coating fuse to become airtight, thereby avoiding contamination.

(D) Examples Next, the present invention will be explained in more detail with reference to the attached drawings, but the specific examples described herein are merely illustrative, and the present invention is not limited to the specific examples. It is not limited to this.

FIG. 1a and FIG. 1b are partial side views showing an end portion of the aged egg manufacturing apparatus according to an embodiment of the present invention in cross section, and FIG. 2 is a partial side view showing a part of FIG. 1b in cross section. It is a front view. FIG. 3 is a sectional view showing one side of a cylindrical member used in carrying out the present invention.

The aged egg manufacturing apparatus 1 includes a support frame 2, which includes a rectangular frame 3, four pillar members 4 extending vertically upward from four corners of the frame 3, and a longitudinal section of the frame 3. It is composed of a beam member 5 attached between the tops of two column members 4 located on both sides of the direction. As shown, hydraulically actuated telescoping legs 6 and wheels 7 are mounted at appropriate locations on the bottom of the frame 3. When the aged egg producing apparatus 1 is to be moved, the legs 6 are retracted, and at this time the aged egg producing apparatus 1 is supported by the wheels 7, thereby holding the aged egg producing apparatus 1 in a predetermined location. It can be moved up to. After the aged egg manufacturing device 1 has been moved to a predetermined location, the legs 6 are extended as shown, and the wheels 7 are released from the floor, thereby stabilizing the aged egg manufacturing device 1 in the predetermined location. It will be installed. A heating area is provided in the upper part of the support frame 2 of the aged egg production device 1, and a heating housing 8 is provided in this heating area.
The heating housing 8 is composed of a plurality of rectangular frame bodies 9, which are supported on the beam members 5 of the support frame 2 and arranged along the longitudinal direction of the support frame 2. Panels 10 that can be opened and closed are provided on both sides of each frame 9, and a fixed panel 11 is provided on the top surface of each frame 9, thereby forming a tunnel-shaped heating housing 8 with both longitudinal ends open. Ru. A thermal radiation source 12 is provided within each frame 9. The thermal radiation source 12 is mainly 1
It is composed of a far-infrared radiator 13 that radiates light in the wavelength range of ~25 μm, a reflector 14 provided above the far-infrared ray radiator 13, and a support 15 that supports both of these elements. As shown, the support 15 is suspended from the top inside each frame 9 so as to be movable up and down, for example by a chain 16. Although not shown in detail, the support 15 can be moved up and down by pulling up or down the chain 16 from the outside. In order to stably move the support body 15 up and down, a guide rod 17 is suspended from the top of each frame.
7 passes through a guide hole 18 formed in the support body 15. An exhaust blower 19 is provided on the upper fixed panel 11 of the frame 9, which allows the heating housing 8
The internal atmospheric temperature is regulated.

The aged egg manufacturing apparatus 1 also includes a conveying means 20 for rotating the egg and passing it through the heating area, that is, the heating housing 8. This conveyance means 2
0 is composed of a pair of endless chain elements 21 and a large number of parallel roller members 22 rotatably stretched between the endless chain elements 21 to support eggs. A pair of endless chain elements 21 are supported by a pair of gears 23 and 24 that are respectively pivotally supported at both ends of both beams 5 of the support frame 2, and at a location below the beam 5 of the support frame 2 and above the frame 3. It spans three pairs of gears 25, 26, and 27 that are pivotally supported between both sides of the frame 2. Note that in FIGS. 1a and 1b, a pair of gears 23,
Only one of each of 24, 25, 26 and 27 is shown.

As shown in FIG. 1a, a drive wheel 28 coaxial with a drive gear 23 for driving a pair of endless chain elements 21 is located at the leftmost part of the frame 3 of the support frame 2, and is connected to a prime mover, ie, an electric motor. 30 via a speed reducer 28' and a drive belt 29, a pair of drive gears 23 are rotationally driven via this drive belt 29, and thereby a pair of endless chain elements 21 are connected to, for example, a clock in FIG. The plurality of parallel roller members 22 rotatably stretched between the pair of endless chain elements are sequentially passed through the heating region, that is, the heating housing 8.

The parallel roller member 22 includes a pipe 33 made of, for example, steel, a plurality of roller pieces 34 made of, for example, aluminum passed over the pipe 33, and a heat-resistant urethane rubber layer 35, for example, coated on these roller pieces 34. It consists of The roller pieces 34 are preferably connected by a mortise-and-tenon joint, as indicated by the reference numeral 36 in FIG.

Bearings 37 are provided at both ends of each parallel roller member 22, and this bearing 37 is connected to the endless chain element 21.
A pin 38 protruding from the shaft is rotatably held, and in this way each parallel roller member 22 is rotatably stretched between a pair of endless chain elements 21. Further, in order to stably support the egg at a predetermined position by the adjacent parallel roller members 22, it is preferable to form a groove portion 39 around each parallel roller member 22.

Further, as shown in detail in FIG. 3, a bottom heat shield plate is disposed in the heating area, that is, in the heating housing 8, below the running path of the parallel roller member 22, so that the far infrared rays emitted from the thermal radiation source 12 are The bottom of the heating housing 8 is prevented from leaking.
As shown, guide rails 40 for the endless chain elements 21 are provided within the heating housing 8 along both sides of the bottom heat shield. This guide rail 40 is supported by suitable support beams 41. By stabilizing the running of the endless chain element 21 with the guide rail 40, the parallel roller member 22 can stably transport the eggs supported thereon. Also, as shown in Figure 3,
Another rail member 32 is positioned along the guide rail 40 to engage opposite ends 42 of the parallel rod member 22 so that the parallel roller member 22 rotates on the rail member 40 as it travels within the heated housing 8. You will be forced to move while doing so. Due to the rotation of the parallel roller member 22, the egg supported thereon is rotated and rotates along the roller member 2.
2 through the heating housing.

Next, in order to operate the above-described egg cooking device 1, first, an egg is placed between the concave grooves 39 of the adjacent parallel roller members 22 at the entrance of the heating housing 8 (i.e., on the left side in FIG. 1a). and support it. Next, the eggs supported by adjacent parallel rollers 22 are conveyed into the heating housing 8, where they are irradiated with far-infrared rays from the thermal radiation source 12.
At this time, the egg is constantly rotated between the parallel roller members 22. After being irradiated with a predetermined amount of far-infrared rays, the eggs are cooked as so-called boiled eggs, and these boiled eggs are carried out from the exit portion of the heating housing 8 (ie, the right side in FIG. 1). As mentioned above, since the thermal radiation source 12 is vertically movable, the amount of far-infrared rays irradiated to the eggs can be adjusted. That is, the thermal radiation source 12
When the thermal radiation source 12 is moved upward, the amount of far-infrared rays irradiated to the egg becomes smaller.On the other hand, when the thermal radiation source 12 is moved downward, the amount of far-infrared rays irradiated to the egg becomes smaller. growing. By adjusting the amount of heating in this manner, it is possible to obtain, for example, whole-boiled eggs or soft-boiled eggs.

In order to obtain uniformly boiled eggs, it is necessary to keep the ambient temperature within the heating housing 8 constant, and such constant ambient temperature is achieved by the exhaust blower 19.

The infrared radiators used in this example include known infrared radiators such as silicon carbide rods, tungsten lamps, and iodine lamps, and the far-infrared radiators include zirconia, titania, alumina, and β-based infrared radiators. - There are known far-infrared radiators such as sponge ceramics and the like.

In addition, since the aged eggs obtained in this example are produced by continuously rotating the eggs, the yolk is not unevenly distributed, and the aged eggs, such as whole-aged eggs, have a good appearance and are located in the center of the egg. Can be produced continuously in large quantities.

(E) Effects of the Invention As is clear from the above description, according to the present invention, aged eggs can be produced without using boiling water because they are heated by infrared or far-infrared radiation. The dangers of handling boiling water, as in the conventional case, are therefore eliminated.

Furthermore, in the present invention, it is easy to adjust the position of infrared rays or far-infrared rays relative to eggs, so it is easy to produce matured eggs such as whole-boiled eggs and soft-boiled eggs.

Furthermore, in the present invention, the pores of the eggshell are sealed and airtight due to infrared or far-infrared heating, so that aged eggs that are extremely hygienic and hard to spoil can be obtained.

In addition, in the present invention, the atmospheric temperature inside the heating housing can be kept constant, and since the egg is heated while rotating, the rotation of the egg eliminates the directionality of radiant heating, etc., resulting in uniform heating. It is possible to heat the eggs and produce a large amount of homogeneous and hygienic aged eggs. In this way, since the heating atmosphere is homogeneous and the eggs do not come into contact with each other, a decrease in yield due to breakage of eggshells etc. can be avoided.

Furthermore, in the present invention, the pores of the eggshell are sealed and airtight due to infrared or far-infrared heating, so that aged eggs that are extremely hygienic and hard to spoil can be obtained.

As described above, the present invention is superior to conventional boiled egg production methods, and has a large influence on others.

[Brief explanation of drawings]

FIG. 1a and FIG. 1b are partial side views showing an end portion of the aged egg manufacturing apparatus according to an embodiment of the present invention in cross section, and FIG. 2 is a partial side view showing a part of FIG. 1b in cross section. It is a front view. FIG. 3 is a sectional view showing one side of a cylindrical member used in carrying out the present invention. As for the symbols in the figure, 1 is the aged egg manufacturing device;
2 is a support frame, 3 and 9 are frame bodies, 4 is a column member, 5 is a beam member, 6 is a leg, 7 is a wheel, 8
1 is a heating housing, 10 is a panel that can be opened and closed, 1
1 is a fixed panel, 12 is a thermal radiation source, 13 is a far-infrared radiator, 14 is a reflector, 15 is a support body, 1
6 is a chain, 17 is a guide rod, 18 is a guide hole, 19 is an exhaust blower, 20 is a conveyance means, 21 is an endless chain element, 22 is a parallel roller member, 23 is a drive gear,
24 to 27 are gears, 28 is a drive wheel, 28 is a reducer, 29 is a drive belt, 30 is an electric motor, 33
is a pipe, 34 is a roller piece, 35 is a urethane rubber layer, 37 is a bearing, 38 is a pin, 39 is a groove part,
40 is a guide rail, and 41 is a support beam member.

Claims (1)

[Claims] 1. Light having a wavelength within the infrared or far infrared wavelength region is applied to a plurality of eggs supported in adjacent grooves of a plurality of rollers arranged with grooves in the circumferential direction. In a method for producing aged eggs in which eggs are heated by irradiation, a series of rollers are moved in the same direction while rotating, so that each of the rotating rollers can be rotated within the groove of an adjacent roller. The supported eggs are rotated in a direction opposite to the rotating direction of the rollers, and the rotating eggs supported in the grooves of adjacent rollers are moved horizontally with the respective rollers to reach a predetermined ambient temperature. Light having a wavelength within the infrared or far infrared wavelength range is guided to an irradiation area that is maintained, and within the irradiation area, the egg rotates and moves while being supported in the concave grooves of these adjacent rollers. From above,
By irradiating the egg with light having a wavelength in the infrared or far infrared wavelength range, the egg is heated to coagulate at least the albumen of the egg and seal the pores of the eggshell, so that the pores of the eggshell are sealed. A method for continuously producing aged eggs in which the pores of the eggshell are sealed, characterized by continuously obtaining aged eggs.