JP4699653B2 - Method for preventing uneven baking in oven and oven - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for preventing uneven baking in an oven and an oven. Specifically, the baking of the baking oven of the confectionery / bread electric oven is controlled to prevent uneven baking of the confectionery / bread.
[0002]
[Prior art]
Conventionally, as shown in FIG. 9, an electric oven for baking confectionery, bread and the like has several baking chambers 102 formed in the oven body 101, and an opening / closing door 103 is attached to the open end of each baking chamber 102. The
[0003]
An upper-heating heating unit 104 and a lower-heating heating unit 105 in which nichrome wires are wired are arranged at the upper and lower portions of each of the baking chambers 102, and the upper-heating heating unit 104 and the lower-heating heating unit 105 form the baking chamber. The temperature in 102 is heated within a range of about 180 degrees to 240 degrees to bake confectionery and bread.
[0004]
Further, as shown in FIG. 10, a temperature sensor 107 is arranged at the approximate center of the heater 106 wired with nichrome for the upper fire or the lower fire, and the temperature is detected by the temperature sensor 107 and the preset temperature is maintained. To be controlled by a computer.
[0005]
[Problems to be solved by the invention]
During normal baking, the door 103 is opened several times in order to see the baking of baking objects such as confectionery.
[0006]
In this case, the hot air in the baking chamber 102 is released to the outside of the baking chamber 102 by opening the door 103, and the set temperature is lowered. The temperature sensor 107 detects the baking temperature at this time and raises it to the set temperature. It will be.
[0007]
However, since the temperature control of the heating part 104 for the upper fire is adjusted entirely by the detection of the temperature sensor 107, for example, the temperature in the vicinity of the open / close door 103 becomes lower than the position of the temperature sensor 107, so However, if the temperature is controlled to the set temperature at the position of the temperature sensor 107 in this state, a partial temperature difference is generated in the heating part 104 for the upper fire. This is a cause of uneven baking in the object to be fired.
[0008]
Further, as shown in FIG. 11, in the oven in which several stages of firing chambers 102 are formed in the oven body 101 and the open / close doors 103 are respectively attached to the opening ends on both sides of each of the firing chambers 102, To open the doors 103 on both sides several times in order to check the heating, for example, when the temperature in the vicinity of the door 103 is lower than the position of the temperature sensor 107 and the temperature sensor 107 is controlled to the set temperature in that state. In this case, a partial temperature difference occurs in the heating part 104 for the upper fire, which causes uneven firing in the object to be fired.
[0009]
Accordingly, the present invention was devised in view of the above points, and includes a method for preventing uneven baking in an oven and an oven for preventing uneven baking by blocking the upper heating unit into several parts and controlling each temperature. It is intended to provide.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a method for preventing uneven baking in an oven according to the present invention includes a heating part for upper fire and a heating part for lower fire arranged in upper and lower portions of a firing chamber equipped with an open / close door on one end side. In the method of firing a fired product, a step of dividing the heating part for the upper fire into a plurality of steps, a step of arranging a temperature sensor in each of the divided heating parts for the upper fire, And a step of controlling the temperature of the heating unit.
[0011]
Here, the process of dividing the heating part for the upper fire into a plurality of parts is to divide the electric heater with nichrome wiring in the upper part of the firing chamber into 2 blocks, 3 blocks or 4 blocks according to the size of the firing chamber. The temperature can be controlled for each block.
Furthermore, the process of arranging the temperature sensor in the heating part for the upper fire is to arrange the temperature sensor in each heating part for the upper fire and sense the temperature of each block so that each block has the set temperature. By controlling the temperature of the heating section for each top fire, uniform heating without a temperature difference becomes possible, and baking unevenness of the object to be fired is prevented.
[0012]
Moreover, the baking unevenness preventing method in the oven according to the present invention is a method of firing an object to be fired by a heating part for an upper fire and a heating part for a lower fire arranged in upper and lower parts of a firing chamber equipped with opening / closing doors on both ends. A step of dividing the upper heating unit into a plurality of steps, a step of arranging a temperature sensor in each divided upper heating unit, and temperature control of each upper heating unit by the temperature sensor The process of carrying out.
[0013]
Here, by attaching opening / closing doors to the opening portions at both ends of the firing chamber, it is possible to separate the loading of the fired product before firing and the removal of the fired product after firing.
[0014]
Further, the step of dividing the heating part for the upper fire into a plurality of steps is to divide the electric heater with nichrome wiring at the upper part of the firing chamber into 2 blocks, 3 blocks or 4 blocks according to the size of the firing chamber, The temperature can be controlled for each block.
In addition, the process of arranging the temperature sensor in the heating part for the upper fire is to arrange the temperature sensor in each heating part for the upper fire, sense the temperature of each block, and set each block so that it becomes the set temperature. By controlling the temperature of the heating section for each top fire, the temperature difference that occurs when both the doors are opened and closed is eliminated, and uneven baking of the object to be fired is prevented.
[0015]
In order to achieve the above object, an oven according to the present invention includes an upper heating unit and a lower heating unit arranged at the upper and lower portions of a firing chamber on one end side of which an opening / closing door is mounted. There are a dividing means for dividing the heating part for the upper fire into a plurality of parts, a temperature sensing means for arranging a temperature sensor in each of the divided heating parts for the upper fire, and heating for each individual heating by the temperature sensor. Temperature control means for adjusting the temperature of the section.
[0016]
Here, the dividing means for dividing the heating part for the upper fire into a plurality is divided into an electric heater with nichrome wiring in the upper part of the baking chamber so that it becomes 2 blocks, 3 blocks or 4 blocks according to the size of the baking chamber. The temperature can be controlled for each block.
Furthermore, the temperature sensing means means that a temperature sensor is provided in each divided upper heating heating section to sense the temperature of each block, and the temperature control of the upper heating heating section for each block so as to become a set temperature. By doing so, uniform heating without temperature difference becomes possible.
[0017]
Further, the oven according to the present invention is an oven in which a heating part for upper fire and a heating part for lower fire are arranged in the upper and lower portions of the firing chamber in which opening and closing doors are mounted on both ends, respectively. Dividing means for dividing the section into a plurality of parts, temperature sensing means for arranging a temperature sensor in each of the divided heating sections for heating, and temperature control for adjusting the temperature of each heating section for heating with the temperature sensor Means.
[0018]
Here, opening and closing doors are attached to both ends of the baking chamber, and the labor can be divided into the loading of the fired material before firing and the removal of the fired material after firing.
[0019]
Further, the dividing means for dividing the heating part for the upper fire into a plurality of parts is to divide the electric heater with nichrome wiring on the upper part of the firing chamber so that it becomes 2 blocks, 3 blocks or 4 blocks according to the size of the firing chamber, The temperature control can be performed for each block.
The temperature sensing means is a temperature sensor arranged in each divided upper heating unit to sense the temperature of each block and control the temperature of the upper heating unit for each block so that it becomes the set temperature. By doing so, uniform heating without temperature difference becomes possible.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, an example of a method for preventing baking unevenness in an oven to which the present invention is applied is provided with several (three in this embodiment) baking chambers 2 in an oven main body 1. The part 3 has a sealed structure in which an opening / closing door 4 is mounted.
[0021]
The open / close door 4 has a lower end connected to and supported by a lower end edge of the opening 3, and the opening 3 can be opened and closed by a handle 5.
[0022]
Therefore, an upper heating unit 6 and a lower heating unit 7 are disposed at the upper and lower portions of each baking chamber 2, and the lower heating unit 7 is electrically heated by nichrome wiring as shown in FIG. A heater 8 is provided, and a temperature sensor 9 is disposed in the approximate center of the electric heater 8 of the lower heating unit 7. The temperature sensor 9 senses the temperature, and the electric heater 8 as a whole. The temperature control is performed.
[0023]
Next, as shown in FIG. 3, the heating unit 6 for upper fire is divided into four blocks, and each block is provided with an electric heater 8 made of nichrome wiring. A temperature sensor 9 is arranged at substantially the center, and the temperature is detected by the temperature sensor 9 for each block, and the temperature of the electric heater 8 is controlled for each block.
[0024]
In the present invention having the above configuration, when the open / close door 4 is opened as shown in FIG. 4, the temperature change does not occur because the lower heating unit 7 is in close contact with the top plate 10 on which the object A is placed. It rarely occurs. However, since the heating part 6 for the upper fire opens the door 4 and the hot air between the object to be fired A and the heating part 6 for the upper fire is released through the opening 3, In this case, a temperature difference is generated for each block.
[0025]
Therefore, when the temperature is detected by the temperature sensor 9 arranged for each block, for example, when the set temperature is 200 degrees, the detection by the temperature sensor 9 of each block is 190 degrees, 185 degrees, 195 degrees, and 180 degrees. In this case, the entire upper heating unit 6 is controlled to a uniform heating temperature by automatically controlling the electric heater 8 for each block so as to reach a set temperature of 200 degrees by computer control. This makes it possible to prevent uneven baking.
[0026]
An example of a method for preventing baking unevenness in the oven to which the present invention is applied is provided with several (three in this embodiment) baking chambers 2 in the oven body 1 as shown in FIG. Both the openings 3 and 3 have a sealed structure in which opening and closing doors 4 and 4 are mounted.
[0027]
The open / close door 4 has a lower end connected to and supported by a lower end edge of the opening 3, and the opening 3 can be opened and closed by a handle 5.
Accordingly, by installing the opening / closing doors 4 and 4 in the opening portions 3 and 3 at both ends of the baking chamber 2, the firing object before firing and the removal of the firing object after firing can be performed through separate opening / closing doors 4. It is possible to make the work more efficient.
[0028]
Accordingly, an upper heating unit 6 and a lower heating unit 7 are disposed at the upper and lower portions of each baking chamber 2, and the lower heating unit 7 is electrically heated by nichrome wiring as shown in FIG. A heater 8 is provided, and a temperature sensor 9 is disposed in the approximate center of the electric heater 8 of the lower heating unit 7. The temperature sensor 9 senses the temperature, and the electric heater 8 as a whole. The temperature control is performed.
[0029]
Next, as shown in FIG. 7, the heating unit 6 for upper fire is divided into four blocks, and each block is provided with an electric heater 8 made of nichrome wiring. A temperature sensor 9 is arranged at substantially the center, and the temperature is detected by the temperature sensor 9 for each block, and the temperature of the electric heater 8 is controlled for each block.
Depending on the width and depth of the baking chamber 2, it may be divided into 2 blocks, 3 blocks or 5 blocks, and it is desirable to make the most suitable division according to the situation.
[0030]
In the present invention having the above configuration, when the open / close doors 4 and 4 are alternately or simultaneously opened as shown in FIG. 8, the lower heating unit 7 is in close contact with the top plate 10 on which the object A is placed. Therefore, the temperature change hardly occurs. However, since the heating part 6 for the upper fire opens the door 4 and the hot air between the object to be fired A and the heating part 6 for the upper fire is released through the openings 3 and 3, the firing chamber 2 The temperature of the upper part will drop sharply, but at that time, a temperature difference will occur for each block.
[0031]
Therefore, when the temperature is detected by the temperature sensor 9 arranged for each block, for example, when the set temperature is 200 degrees, the detection by the temperature sensor 9 of each block is 190 degrees, 185 degrees, 195 degrees, and 180 degrees. In this case, the entire upper heating unit 6 is always controlled to a uniform heating temperature by automatically controlling the electric heater 8 for each block so as to reach a set temperature of 200 degrees by computer control. This makes it possible to prevent uneven baking.
[0032]
【The invention's effect】
As described above, according to the present invention, the temperature difference of the upper heating unit caused by opening and closing the door is divided into a plurality of blocks, and temperature control is performed for each block. As a result, it is possible to control the temperature to be uniform, and as a result, it is possible to prevent uneven baking of the baked goods such as confectionery and bread.
[Brief description of the drawings]
FIG. 1 is an explanatory side view showing an example of an internal mechanism of an oven of the present invention.
FIG. 2 is an explanatory diagram showing an example of a heating unit for lowering the oven according to the present invention.
FIG. 3 is an explanatory diagram showing an example of a heating unit for heating an oven according to the present invention.
FIG. 4 is an explanatory diagram of the operation of the baking unevenness prevention method in the oven of the present invention.
FIG. 5 is an explanatory side view showing an example of the internal mechanism of the double door oven according to the present invention.
FIG. 6 is an explanatory view showing an example of a heating part for lower fire of the double door oven according to the present invention.
FIG. 7 is an explanatory view showing an example of a heating part for upper fire of the double door oven according to the present invention.
FIG. 8 is an operation explanatory view of a method for preventing uneven baking in a double door oven according to the present invention.
FIG. 9 is an explanatory side view showing an example of an internal mechanism of a conventional oven.
FIG. 10 is an explanatory diagram showing an example of a conventional oven heating unit for upper and lower fires.
FIG. 11 is an explanatory side view showing an example of an internal mechanism of a conventional double door oven.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Oven body 2 Baking chamber 3 Opening part 4 Opening / closing door 5 Handle part 6 Heating part for upper fire 7 Heating part for lower fire 8 Electric heater 9 Temperature sensor

Claims (2)

In the method of firing the object to be fired by the heating part for the upper fire and the heating part for the lower fire arranged in the upper and lower parts of the firing chamber respectively equipped with open / close doors on both end sides,
A step of dividing the heating part for upper fire into at least four parts;
A process of arranging a temperature sensor in each heating part for the upper fire;
A method for preventing baking unevenness in an oven, comprising the step of controlling the temperature of each heating part for the upper flame so that the temperature of the baking chamber is kept constant by the temperature sensor . In the upper and lower portions of the firing chamber where the open / close doors are mounted on both ends, respectively, in the oven in which the heating part for the upper fire and the heating part for the lower fire are arranged,
The heating part for upper fire is divided into at least four parts,
A temperature sensor arranged in each heating part for the upper fire,
Temperature control means for controlling the temperature of each heating part for the upper fire so that the temperature of the firing chamber becomes constant based on the temperature sensed by the temperature sensor.
Oven .

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