JPH0655080B2 - Egg machine - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to an egg yolk that hatches eggs, and more particularly to an egg yolk that can realize a comfortable temperature environment for eggs.

[Prior art and its problems]

How to increase the hatching rate is very important for the egg-laying machine. In addition, the egg hatcher with a high hatching rate hatches in a state close to the ideal, so that healthy chicks can hatch. The best large incubators available today are 96-97
Achieved a hatching rate of%. It is extremely important to control the temperature inside the incubator accurately in order to increase the hatching rate. FIG. 3 shows a conventional large-sized egg-driving machine. The egg shelf 2 is carried into the casing, and temperature-controlled air is forcibly blown by the fan 3 into the egg shelf 2 to incubate the eggs placed on the egg shelf 2 for a certain period of time. ing. In the egg-fed machine having this structure, heating / cooling means including a heater and a heat exchanger for cooling is arranged in the vicinity of the fan 3, and the heating / cooling means is arranged above the egg rack 2. It is controlled by. That is, when the temperature measured by the temperature sensor 4 is higher than the set value, the cooling means cools the air, and when the temperature is lower than the set temperature, the heating means heats the air. The fan forcibly blows the air without heating and cooling. In the egg of this structure, the temperature sensor measures the temperature of air blown to the egg shelf, more precisely, the temperature of air flowing into the egg shelf. Therefore, the egg temperature of this structure controls the temperature of the air flowing into the egg shelf within a certain range, while the temperature of the air passing through the eggs stored on the discharge side of the egg shelf is stored in the egg shelf. It changes according to the state of the egg. Therefore, a high hatching rate can be realized in a state where eggs are stored in a predetermined state, but there is a drawback that the hatching rate decreases when the storage state of eggs changes. Eggs are ideally hatched in 504 hours, but the hatching time is about 2 when the air temperature rises only 0.1 ° C.
It will be faster. If hatching is too early or too late, the hatching rate will be poor and healthy chicks cannot hatch. In the egg-fed machine shown in FIG. 3, the air temperature at the position where the temperature sensor 4 is provided, in other words, the air temperature flowing into the egg rack can be accurately controlled. Nevertheless, it is difficult to control the temperature of the incubator because the eggs generate heat by themselves, and the calorific value changes depending on the maturity level. Because
This is because the temperature of the air passing through the outflow side of the egg shelf changes depending on the state of the eggs stored in the egg shelf. The incubator shown in the figure does not have an abnormally high temperature due to fever of mature eggs, and in order to effectively utilize the heat, new eggs are introduced into the air outflow side of the egg shelf and mature,
Moved to the air inlet side of the egg shelf. As shown in the figure, 6 egg shelves are arranged vertically and each egg shelves store about 8000 or less eggs.
Assuming that eggs are stored on the 6th, 9th, 12th, 15th and 18th of a day, if the air temperature at point A, that is, the air temperature flowing into the egg shelf is set to 37.2 ° C, On the discharge side of the egg shelf (point B), 37.8 to 37.9 due to the heat of egg development.
As high as ℃. However, the temperature at point B is exactly 3 at the temperature at point A.
Even if the temperature is controlled to 7.2 ° C, the state of the eggs stored in the egg shelf, in other words, the amount of the whole egg changes, or if the number of days to enter changes and the maturity of the egg changes, There is a drawback that the temperature of air passing through a new egg shelf fluctuates when eggs are egged. It can be imagined that the temperature of the egg shelf can be controlled by detecting the temperature at point B with a sensor and controlling the heating / cooling means with this temperature sensor. However, it is not possible to provide a temperature sensor at point B and control the air temperature with this temperature sensor. This is because when the temperature at the point A is changed by the heating / cooling means, it takes 30 to 60 minutes before the temperature at the point B is affected, so that the time delay of the temperature is too large and accurate temperature control is performed. I can't.

[Object of the Invention]

This invention has been developed for the purpose of eliminating these drawbacks of conventional egg-weaving machines, and an important object of this invention is not to depend on the state of eggs stored in an egg rack, but always, It is an object of the present invention to provide an incubator in which eggs are controlled in a temperature environment closer to an ideal temperature, a high hatching rate is maintained, and a healthy chick can hatch.

[Means for solving conventional problems]

The egg yolk machine of the present invention includes a casing 1, an egg rack 2 housed in the casing 1, a fan 3 forcibly blowing air to the egg rack 2, and an air blown by the fan 3 to a set temperature. And an air temperature control means for controlling. The air temperature control means controls the heating / cooling means 5 with a signal from the temperature sensor 4 for measuring the air temperature, the heating / cooling means 5 for heating or cooling the air in the casing 1, and the air temperature. And a temperature setting means 6 for controlling the temperature to a set temperature. The temperature sensor 4 measures the air temperature, and the temperature setting means 6 controls the heating / cooling means 5 based on this measurement signal to maintain the air temperature at the set value. The temperature sensor 4 includes a main sensor 4A and a correction sensor 4B.
The main sensor 4A is arranged at the inflow side air temperature measurement position of the egg rack 2, and the correction sensor 4B is arranged at the discharge side temperature measurement position of the egg rack 2. The setting means changes the set temperature of the main sensor 4A according to the measured temperature signal of the correction sensor 4B,
The output signal of B does not directly control the heating / cooling means 5, but controls the heating / cooling means 5 by the main sensor 4A whose set temperature is corrected.

[Operation effect]

In the incubator of the present invention, the setting means controls the heating / cooling means 5 by the temperature detection signal of the main sensor 4A, but the set temperature is corrected by the output of the correction sensor 4B. That is,
Heating / cooling means 5 so that the burr temperature at point B becomes a set value
The correction sensor 4B for measuring the temperature at the point B does not directly control the heating / cooling means 5, but the heating / cooling means 5 is controlled by the temperature measured by the main sensor 4A, and the correction sensor 4B is Correct the set temperature of the main sensor 4A,
The main sensor 4A whose set temperature is corrected is the heating / cooling means 5
Is controlled to adjust the burr temperature at point B to the set value. For example, if the set temperature at the point A is 37.2 ° C and the burr temperature at the point B is 37.8 ° C, the measured temperature at the point B changes to 37.9 ° C and the measured temperature at the point B is changed. If is higher than the set value by 0.1 ° C., the set temperature at the point A is corrected lower by 0.1 ° C., and the heating / cooling means 5 is controlled so that the point A becomes 37.1 ° C. When the heating / cooling means 5 heats or cools the air, the heating / cooling means 5 is controlled by the measured temperature of the main sensor 4A, which can detect the temperature with a small time delay, so that the burr temperature is controlled not to be too high or too low. Further, since the correction sensor 4B for measuring the burr temperature corrects the set temperature of the main sensor 4A, the burr temperature is controlled within a fixed range regardless of the storage state of the eggs in the egg rack 2. Therefore, the incubator of the present invention minimizes the effect of the ratio of mature eggs, or the number of total eggs, etc., and the eggs can be kept in a temperature environment close to ideal at all times to increase the hatching rate. Moreover, the feature that a healthy chick can hatch can be realized.

[Preferred embodiment]

Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify a device for embodying the technical idea of the present invention, and the egg yolk of the present invention has the following materials, shapes, structures, and arrangements of constituent parts. Not specific to. The egg yolk of the present invention has various modifications within the scope of the claims. Further, in this specification, for easy understanding of the claims, the numbers corresponding to the members shown in the embodiments are referred to as "Claims of claims" and "Means for solving conventional problems. Of the column and the column of the action and effect. However, the members described in the claims are not limited to the members shown in the embodiments. The egg-driving machine shown in FIGS. 1 and 2 includes a casing 1 of the egg-driving machine, an egg rack 2 housed in the casing 1, a fan 3 for forcedly blowing air to the egg rack 2, and a fan for this. Three
And an air temperature control means for controlling the temperature of the air blown to the set temperature. The air temperature control means controls the heating / cooling means 5 with a signal from the temperature sensor 4 for measuring the air temperature, the heating / cooling means 5 for heating or cooling the air in the casing 1, and the air temperature. And a temperature setting means 6 for controlling the temperature to a set temperature. The temperature sensor 4 includes a main sensor 4A and a correction sensor 4B.
The main sensor 4A is disposed above the egg shelf 2 which is the inflow side air temperature measuring position of the egg shelf 2, and the correction sensor 4B is provided on the outlet side temperature of the egg shelf 2 so that the scent temperature can be measured. At the measurement position, that is, on the suction side of the fan 3. The temperature setting means 6 changes the set temperature of the main sensor 4A according to the measured temperature signal of the correction sensor 4B. In the egg-fed machine having this structure, the air forcedly blown by the fan 3 is transferred from left to right as shown by an arrow above the egg rack 2 as shown in FIG. A U-turn is made at the right end, passes through the egg rack 2 from right to left, and the air discharged from the egg rack 2 is again sucked by the fan 3 and circulated. Therefore, the egg shelves 2 arranged side by side in the casing 1 form an air duct and store a large number of eggs. A heating / cooling unit 5 is provided in the vicinity of the fan 3 so that the air forcedly blown by the fan 3 is heated or cooled and blown into the egg shelf 2. The heating / cooling means 5 includes a heater 5A for heating, which is arranged on the suction side of the fan 3, and a water cooler 5B such as a heat exchanger through which cold water passes. By the way, the air in the incubator can have a high hatching rate by controlling the temperature to a set value and adjusting the humidity and the carbon dioxide gas content to the set values. As the heating / cooling means 5, all members capable of heating or cooling air can be used instead of an electric heater or a heat exchanger. Further, the cooling member can also cool the air temperature in the casing 1 by sucking cool air from the outside of the casing. Therefore, the heating / cooling means 5
Includes the word "cooling" in the name, but it does not necessarily cool the air directly, but a member that sucks in cold air can also be used. As shown in FIG. 1, the member for sucking the cold air can be realized by a ventilation opening 7 opened in the ceiling portion of the casing 1 and a variable opening gate 8 provided in the ventilation opening 7. The heating / cooling means 5 is controlled by the setting means and heats / cools the air in the vicinity of the fan 3. The setting means is the main sensor 4
The heating / cooling means 5 is controlled so that the detected temperature of A becomes the set value. Therefore, when the detected temperature of the main sensor 4A is lower than the set value, the electric heater of the heating means is energized to heat the air. On the contrary, when the measured temperature of the main sensor 4A is higher than the set value, the cooling Force the air to cool by passing cold water through the heat exchanger. The set temperature of the main sensor 4A is automatically adjusted depending on the storage state of eggs. That is, the set temperature of the main sensor 4A is controlled by the measured temperature of the correction sensor 4B. In other words, the correction sensor 4B does not directly control the heating / cooling means 5 according to the detected temperature, but corrects the set temperature of the main sensor 4A with the output signal of the correction sensor 4B, and the measured temperature of the main sensor 4A becomes the set temperature. The setting means controls the heating / cooling means 5 so that By the way, the abnormal temperature rise of the egg-laying machine causes a bad influence on the eggs to be hatched. For example, when the air temperature reaches 40 ° C. or higher, almost all eggs die within a few minutes. Conversely,
Even if the air temperature falls slightly below the set temperature, the hatched eggs do not die immediately. Therefore, in the temperature control in the egg-wetting machine, the abnormal increase in the air temperature must be controlled without any abnormality, even if it is a temporary one. For this reason, when the temperature setting means 6 controls the set temperature of the main sensor 4A by the measured temperature of the correction sensor 4B, it is preferable to slowly correct the set temperature to a high value over time when raising the set temperature. For example, when the burr temperature detected by the correction sensor 4B is lower than the set value, 10 to 10
It is preferable to raise the set temperature with a temperature gradient of 0.1 ° C. or less for 60 minutes. On the contrary, when the temperature setting means 6 lowers the set temperature of the main sensor 4A by the measured temperature of the correction sensor 4B, it is preferable to lower the temperature temporarily. Therefore, when the measured temperature of the correction sensor 4B is, for example, 0.2 ° C. higher than the set value, the set temperature of the main sensor 4A can be immediately lowered by 0.2 ° C. The temperature setting means 6 has a timer, and the correction sensor 4B measures the burr temperature at every set time of the timer,
The set temperature of the main sensor 4A is corrected. The setting time of the timer takes into consideration a temperature range in which the set temperature of the main sensor 4A is corrected at one time, in other words, a temperature range in which the correction temperature is increased once, a heating / cooling time delay, and further, a turning time and the like. It is determined. When the one-time correction temperature range is 0.1 ° C, the timer setting time is usually 10 to 100 minutes, preferably
It is adjusted within the range of about 20 to 60 minutes. The temperature setting means having a timer corrects the set temperature of the main sensor 4A with the measured temperature of the correction sensor 4B every set time of the timer, for example, every 10 to 100 minutes. However, the temperature setting means does not necessarily need a timer. The temperature setting means without a timer limits the temperature gradient for correcting the set temperature to a certain value or less. Also in this case,
Adjust the gradient when increasing the set temperature more gently than the gradient when decreasing it. The temperature gradient on the rising side of the correction temperature is usually 0.5 ° C./30 minutes or less, preferably 0.3.
C./30 minutes or less. The temperature gradient on the corrected temperature drop side is usually 1 ° C./30 minutes or less, preferably 0.5.
C./30 minutes or less. The set temperature of the main sensor 4A is determined by measuring the measured value of the correction sensor 4B, in other words, whether the burr temperature is higher or lower than the set temperature. in this case,
There are roughly two types of methods for the setting means to correct the set value of the main sensor 4A. A simple method is to measure only whether the measured value of the correction sensor 4B is higher or lower than the set value, and not measure the amount of temperature deviation from the set temperature. When the measured temperature of the correction sensor 4B is higher than the set value, the set temperature of the main sensor 4A is lowered by a predetermined temperature gradient, and when the measured temperature of the correction sensor 4B is lower than the set value, the temperature is kept constant. The temperature gradient corrects the set temperature of the main sensor 4A to be high. As a more sophisticated control method for correcting the set temperature of the main sensor 4A, the correction sensor 4B measures the amount of deviation from the set temperature, and the larger the amount of deviation from the set temperature, the larger the correction temperature gradient is adjusted. However, the maximum temperature gradient for correcting the set temperature of the main sensor 4A is adjusted within the above range. In this control method, for example, when the measured temperature of the correction sensor 4B deviates from the set value of the burr temperature by 0.3 ° C. or more,
Correct the set temperature of the main sensor 4A with the maximum temperature gradient,
If it deviates by 0.1 ° C, it will be 1/2 compared to 0.3 ° C
Correct the set temperature with a temperature gradient of ⅓.

[Brief description of drawings]

1 and 2 are a vertical sectional view and a horizontal sectional view showing an embodiment of an incubator according to the present invention, and FIG. 3 is a vertical sectional view showing a conventional incubator. 1 ... Casing, 2 ... Egg rack, 3 ... Fan, 4 ... Temperature sensor, 4A ... Main sensor, 4B ... Correction sensor, 5 ... Heating / cooling means, 6 ... Temperature setting means, 7 ... … Ventilation port, 8 …… Variable opening gate.

Claims (1)

[Claims] 1. A casing 1 of an incubator, an egg rack 2 housed in the casing 1, a fan 3 for forcedly blowing air to the egg rack 2, and an air blown by the fan 3 at a set temperature. A temperature sensor 4 for measuring the air temperature, a heating / cooling means 5 for heating or cooling the air in the casing 1, and a signal from the temperature sensor 4. And a temperature setting means 6 for controlling the heating / cooling means 5 to control the air temperature to a set temperature, the temperature sensor 4 measures the air temperature, and the temperature setting means 6 causes the heating / cooling means 5 to measure the air temperature. In the egg-fed machine configured to control the air temperature at a set value, the temperature sensor 4 is the main sensor 4A.
And a correction sensor 4B, the main sensor 4A is arranged at the inflow side air temperature measurement position of the egg shelf 2, and the correction sensor 4B is arranged at the discharge side temperature measurement position of the egg shelf 2. The egg setting machine characterized in that the setting means is configured to change the set temperature of the main sensor 4A according to the temperature signal measured by the correction sensor 4B.