JPH053747A - Apparatus for automatic baking of cake or food with electric heater - Google Patents

Abstract

PURPOSE:To control the electric current supplied to each electric heater by inputting temperature information and heating element information set along the moving direction of an endless orbit in the upper and lower baking zones and calculating the current based on the measured temperature information. CONSTITUTION:The upper and lower baking zones 3, 4 are divided into plural blocks 31, 32, 33..., 41, 42, 43... and each block is provided with an electric heater 311, 321, 331, 411, 421, 431. Standard temperature and buffer temperature range are set for each block according to the baking condition of a food and inputted into a controlling memory device 5. The working state or using condition of the electric heater of each block is also inputted into the controlling memory device. The working temperatures in the upper and the lower baking zones are detected by temperature detection elements 61-66 and the voltage of the power supplied to each electric heater is regulated with a voltage regulator 71, 72.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic electrothermal baking apparatus for confectionery or food, and more specifically, it places the dough of confectionery or food on an endless track that runs continuously or intermittently, and heats it from above and below. It is an automatic electrothermal baking device that heats and bakes by a baking machine, and if the reference temperature is set in advance according to the baking conditions of the confectionery or food to be baked, the baking conditions are automatically maintained at the appropriate baking conditions. The present invention relates to an automatic electrothermal firing device.

[0002]

2. Description of the Related Art Generally, most confectioneries and foods, regardless of whether they are Japanese confectionery or Western confectionery foods, are automatically heated and mass-produced after the dough is adjusted and continuously heated and baked by a baking device for mass production. . Various types of firing apparatuses have been proposed and implemented for the purpose of mass production, but the most common type is, for example, the type described in Japanese Patent Publication No. 61-36883. In this type, the burnt plate is mounted on an endless track that runs continuously or intermittently, or the burnt plate itself is configured in an endless manner. The dough for confectionery or food is placed on the track, and the dough is baked while the endless track is passed between the baking zones formed above and below the track. That is, the firing zone is equipped with a gas burner using a mixture of fuel gas and air as a heat source, and the dough placed on an endless track runs continuously or intermittently. The dough is automatically baked by being heated by the upper and lower baking zones.

When baking in this way, the baking conditions differ depending on the type of confectionery or food, and various measures have been taken to set these baking conditions.
Even during firing, everything is done manually by craftsmanship. For this reason, when the confectionery or food to be baked changes, the conditions for the gas burner of the baking zone are adjusted until the steady conditions are reached and for the subsequent operations, respectively. Very complicated,
In particular, since this work may be exposed to high temperatures, the degree of fatigue is extremely high, and improvement thereof is desired.

From this point of view, the present inventor has previously divided the upper and lower firing zones into at least three firing zones as shown in Japanese Patent Publication No. 63-66496.
We proposed a baking device in which the heating element of the oven is changed to, for example, a gas burner or an electric heating element according to the characteristics of the confectionery or food to be baked. That is, with this baking device, the confectionery baking zone is divided into at least three along the traveling direction of the common moving zone to form the first, second and third baking chambers, and the confectionery baking zone is placed on this moving zone. In the confectionery baking apparatus in which the confectionary dough is baked while sequentially passing through the respective baking chambers, a gas burner is arranged above and below the moving zone in the first baking chamber, and a moving zone in the second baking chamber. In the confectionery baking apparatus, an electric heating element is arranged on the upper part of the above, a gas burner is arranged on the lower part, and an electric heating element is arranged on the upper and lower parts of the moving zone in the third baking chamber.

[0005] However, this apparatus burns according to the kind of confectionery while changing the heating element of each firing zone and making the best use of the respective characteristics. In other words, there is a great advantage in expanding the range of confectionery to be targeted. However, taking the case of baking one confectionery as an example, each confectionery has its own conditions to be baked, and all the condition settings during baking or operation depend on manual work, and there is a need for improvement here. There is.

[0006] Therefore, it is conceivable to apply the electric computer technique to these manual operations to unmanned or automate them. However, on the premise of the application of this computer technology, it is necessary to improve the structure of the gas firing apparatus itself and apply it according to the improvement. However, since the conventional gas calcination apparatus is all developed on the premise of craftsmanship as described above, it is almost impossible to apply it as it is.

[0007]

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks, and more specifically, it is suitable for the baking conditions of food or confectionery to be baked in a baking apparatus which is heated and baked by an electric heat heater. In order to apply the computer technology, the automatic gas firing apparatus is proposed which controls the voltage of the electric power automatically supplied by using the computer technology so that the computer technology can be applied. .

[0008]

That is, in the automatic electrothermal firing apparatus according to the present invention, the dough for confectionery or food is placed on an endless track that continuously or intermittently runs, and the dough is formed above and below the endless track. In an automatic electrothermal baking apparatus for a confectionery or food that automatically bakes the confectionery or food by an electric heating heater arranged in the upper and lower firing zones, the upper and lower firing zones are used in the running direction of the endless track. Enter the temperature information consisting of the reference temperature set to meet the baking conditions of the confectionery or food to be baked and the buffer area defined in relation to this reference temperature, and enter this buffer for each gas burner. A control memory device for inputting heater information consisting of operating conditions or operating conditions determined based on the zone and reference temperature, and operating temperatures in the upper and lower firing zones are detected at multiple locations. A plurality of temperature detecting elements, and a voltage adjusting device for adjusting the voltage of the electric power supplied to each electric heating heater mainly in accordance with the heater information. In addition, it is characterized in that the amount of electric heat to each electric heating heater is controlled by a control signal transmitted as a result of calculation control based on the temperature detected by the temperature detecting element.

The structure and operation of the means of the present invention will be described in detail below with reference to FIGS. 1 and 2.

FIG. 1 is an explanatory view of an automatic firing device according to one embodiment of the present invention, and FIG. 2 is an explanatory view of a voltage adjusting device thereof.

First, in FIG. 1, reference numeral 1 indicates a firing furnace, and an endless track 2 is disposed inside the firing furnace 1 through the firing zone. The vehicle runs continuously or intermittently in the direction of the arrow in FIG. 1, during which the dough of the confectionery or food placed thereon is continuously baked. In the firing furnace 1, firing zones 3 and 4 are respectively formed above and below the traveling endless track 2, and these firing zones 3 and 4 are divided into at least two blocks in the running direction. Be divided. In the example shown in FIG. 1, three blocks 31, 32, 33, 41, 42,
It is divided into 43. The upper and lower blocks 31, 32, 33, 41, 42, 43 thus divided are respectively provided with electric heating heaters 311, 321, 331, 411, 42.
1, 431 are provided, and the electric heating heaters 311 and 32 are provided.
The doughs such as confectionery and food placed on the endless track 2 by 1, 331, 411, 421, 431 are continuously baked.

Next, each of the blocks 31, 32,
In 33, 41, 42, 43, regarding the electric heat heaters arranged therein, the operation mode and the operating conditions are individually related to the reference temperature in each block and the buffer area thereof as described below. -A control storage device 5 is provided to set as a pattern and to pre-input these as one of the information.

That is, each block 31, 32, 33,
The operation mode or use condition of the electric heating heaters 41, 42, 43 is determined depending on the temperature curve required for the confectionery or food to be baked and the running speed of the endless track.
The reference temperature is set from 2, 33, 41, 42, 43, and is determined as a heater pattern based on the reference temperature and the buffer area related thereto. For example, when firing a shoe of shoe cream, each block 31, 3
Set the set temperature of 2, 33, 41, 42, 43 to 16 each
0 ° C, 170 ° C, 200 ° C, 200 ° C, 180 ° C, 16
Bring to 0 ° C. At this time, in each block, the buffer area is defined around the reference temperature. The buffer area is determined according to the sweets and foods to be adjusted, but usually ± 5
It is preferable to set the temperature at or below ° C. In addition, regarding the electric heating heater for each reference temperature in each block, the operation mode and usage conditions of the electric heating heater in each block are described as follows, for example, A, B, C, D, and E heat points. -Divided into patterns, these patterns are input in the control storage device 5 in advance as information. For example, the reference temperature in the block 41 on the lower inlet side is set to 200 ° C., and the buffer area ± 2
When the temperature is set to ° C, as will be described later, when a power source of 200 V is used, the heater patterns A, B, C, D and E of the electric heating heater 411 are set as follows. A: Regardless of the detected temperature of the block 41, the voltage is 200 V and the amount of electric heat is 2 when the temperature is raised at the start of operation.
Pattern of 0 kW, B ... Pattern of which the detected temperature of the block 41 reaches the buffer region of the reference temperature, that is, within 198 to 202 ° C., the voltage is 150 V and the electric heat amount is 11.25 KW, C. From the point of temperature control, voltage 145V and electric heat 10.5K
W pattern, D ... Voltage of 140V and heat capacity of 9.8KW for temperature control
Pattern of E ... When the detected temperature of the block 41 exceeds the upper limit of the buffer area, the pattern of electric power of 5 kW,

That is, when the baking of confectionery or food is started, first, the respective blocks of the upper and lower zones are heated to at least the reference temperature, and when the dough is carried in, the respective blocks are baked at the reference temperature. Do. In this case, for example, in the firing of the shoe, it is not necessary to heat the block 31 on the introduction side of the upper zone too strongly, but in the block 41 on the inlet side of the lower zone, the preheating of the block 31 is also taken into consideration. Then, it is necessary to heat it sufficiently. Further, since the lower side of the shoe needs to be heated strongly from the beginning, the electric heating heater 411 in the block 41 is first heated by applying the A pattern from the control storage device 5. If it exceeds the upper limit of the buffer area, an E pattern is given. During baking of the dough, each pattern of B, C, D and E is appropriately selected in the control storage device 5, and the voltage adjusting device 71 or 72 is operated by this command, and the operating temperature of the block 31 is within the buffer region. Held in.

That is, the input side of each of the voltage regulators 71 and 72 is connected to the control storage device 5, and the output side thereof is the electric heating heater 311, 321, 331, 411, 421, 431.
Are connected to each. Further, each voltage adjusting device 71, 7
The input side of the power source 8 is connected to 2 and the applied power of 200 V, for example, is input. Further, as will be described later, each of the voltage adjusting devices 71 and 72 is mainly a switch which selects and switches the power or voltage from the power source 8 in accordance with each pattern of A, B, C, D and E as described above. The specific function is shown in FIG.
Thyristor elements 711, 712, 713, 721, 72
It is configured by combining 2,723.

With this configuration, a predetermined thyristor element is selected by a command from the control storage device 5, and the electric power of, for example, 200 V input from the power source 8 is adjusted to a predetermined voltage, for example, A, B, C. , D, and E, the electric heater 411 operates so that each pattern can be determined.

In addition to the above information for each electric heating heater, the baking time and the blocks 31, 32, 33, 41, which are determined according to the food or confection to be baked, are also included.
The reference temperatures of 42 and 43, and the traveling speed of the endless track 2 are input in the control storage device 5 in advance. By inputting in this way, as described below, the voltage of each electric heating heater is adjusted and turned on / off at the same time according to a command from the control storage device 5, and the confectionery or food is automatically baked. Also,
During operation, each block 31, 32, 33, 41, 42,
In order to detect the operating temperature from 43, the temperature detecting element 6
1, 62, 63, 64, 65, 66 are provided, the operating temperature of each block is detected by these, and the measured temperature is input to the control storage device 5 as operating information. Since the above information is input and stored in advance in the control storage device 5, in the control storage device 5, calculation is performed based on these storage devices and measurement information, and an operation command is given to each heating element. The voltage of the heating element is adjusted within a range defined by operating modes and usage conditions preliminarily classified and input, for example, A, B, C, D, and E.

For example, in the case of firing the shoe for a shoe cream with a firing time of 15 minutes, a firing apparatus as shown in FIG. 1 is used, and the moving speed of this endless orbit is determined from the firing time. , As shown in Table 1, the reference temperature of each block,
A pattern such as an operation mode of each gas burner is determined, and these conditions are preliminarily input to the control storage device 5 as information. Incidentally, each of the electric heating heaters can be partially used in combination with the gas burner.

[0019]

As described in detail above, the automatic electrothermal firing apparatus according to the present invention forms food placed on an endless track that continuously or intermittently runs across the endless track. When placed in the upper and lower firing zones,
A device for firing by means of
In addition to setting a reference temperature that is determined according to the firing conditions of the food to be baked and the buffer temperature range that is determined in relation to this reference temperature, and inputting these as temperature information into the control storage device, A heater that individually determines the operating mode or usage conditions of the electrothermal heater of the zone.
It comprises a control storage device for inputting the data of the heater, a temperature detecting element for detecting the operating temperature in the upper and lower firing zones, and a voltage adjusting device for adjusting the voltage of the electric power supplied to each electric heating heater. It is a thing.

Therefore, according to the present invention, it is possible to control the food or confectionery to be baked according to the baking conditions with almost no manual work and using computer technology.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an automatic electrothermal firing apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an example of a voltage adjusting device according to the present invention.

[Explanation of symbols]

1 firing furnace 2 endless orbit 3 firing zone 4 firing zone 5 control storage 8 power supplies 31-33 blocks 41-43 blocks 61-66 Temperature detection element 71, 72 Voltage regulator 311 to 431 Electric Heater

Claims (3)

[Claims] 1. An electric heating heater placed on a dough for confectionery or food on an endless track that continuously or intermittently runs, and is placed in upper and lower baking zones formed above and below the endless track. According to the automatic electrothermal baking apparatus for baking sweets or foods that automatically burns sweets or foods, the upper and lower baking zones meet the baking conditions of the sweets or foods to be baked along the running direction of the endless track. The temperature information consisting of the reference temperature set as described above and the buffer area defined in relation to the reference temperature is input, and the operation mode or the operation mode determined based on the buffer area and the reference temperature for each gas burner or A control storage device for inputting heater information consisting of operating conditions, a plurality of temperature detecting elements for detecting operating temperatures in the upper and lower firing zones over a plurality of locations, and each of the electric currents. A voltage adjusting device for adjusting the voltage of the electric power supplied to the heat heater mainly in accordance with the heater information, and the heater information in the control storage device,
It is configured to control the amount of electric heat to each electric heat heater by a control signal transmitted as a result of calculation control based on the temperature information and the temperature detected by the temperature detecting element. Automatic electrothermal baking equipment for confectionery or food. 2. The automatic confectionery or food baking device according to claim 1, wherein the voltage adjusting device is provided with a thyristor element for adjusting the voltage to a preset voltage corresponding to the buffer region. 3. The automatic confectionery or food product according to claim 1, wherein the control storage device is connected to the voltage adjustment device so that one of the control signals of the control storage device is input. Electrothermal firing device.