JPH01135316A - Bread maker - Google Patents

Abstract

PURPOSE: To always obtain well baked bread, by keeping the progress condition of baking motion when interruption of power supply has happened in the fermentation process and, keeping the waiting condition when it has happened in the kneading process or the baking process. CONSTITUTION: A container 4 provided inside with the kneading blade 9 in the bottom is detachably charged in the baking chamber 2 of a baking oven body 1. A microcmputer 20 controls the drive of a heater 12 heating a motor 7 rotating the kneading blade and the container to automatically carry out respective processes of kneading, fermenting, and baking of the bread materials contained in the container 4. An electric source 24 to back up the microcomputer at the interruption of power supply during cooking, is attached to count the interruption time and add the interruption time to the fermentation process when it has happened during the fermentation process and not to add the interruption time to the kneading or baking process when it has happened during these proceses and further, add a function to continue to control respective processes after recovery of the interruption of power supply.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bread making machine that automatically bakes bread by kneading, fermenting, roasting, etc. bread raw materials.

[Conventional technology]

Normally, in this type of bread making machine, a so-called home bakery, bread ingredients are stored in a container in the cooking chamber, and the motor that rotates the kneading blades at the bottom of the container and the heater that heats the container are each controlled and driven by control means. , a first kneading step of kneading the bread raw materials, a first fermentation step of fermenting the kneaded raw materials, a second kneading step of kneading the raw materials after the fermentation, a second fermentation step of re-fermenting the kneaded raw materials, and a second fermentation step of re-fermenting the kneaded raw materials. It is configured to automatically produce bread through a roasting process that involves baking the raw materials after fermentation.

On the other hand, if a power outage occurs while the bread making machine is cooking, the cooking operation by the motor and heater will stop at that point, so it will remain on standby during the power outage, and after the power is restored, the process will continue from the time the power outage occurred. We are adopting a method to do so.

[Problem that the invention seeks to solve]

By the way, when manufacturing bread, the fermentation time in the fermentation process is a very important factor, but with conventional bread making machines, even if a power outage occurs during the fermentation process, yeast fermentation will continue during this power outage time. However, the fermentation process continued after the power was restored, resulting in a standby state.
This means that the fermentation time is extended, causing problems such as overfermentation.

This invention has been made with the above points in mind, and aims to provide a means for reliably preventing over-fermentation due to power outages and always producing bread of good quality.

[Means for solving problems]

Next, the configuration of the present invention will be explained using FIGS. 1 and 2, which correspond to embodiments.

This invention consists of a container (4) that is detachably attached to a cooking chamber (2) in a bread making machine main body (1) and has a kneading blade (9) inside the bottom thereof, and a motor (4) that rotates the kneading blade (9). 7), a heater (6) for ripening the container (4), and kneading and fermentation of the bread ingredients stored in the container (4) by controlling the drive of the motor (7) and the heater (2); A bread making machine consisting of a microcomputer that automatically performs each roasting process is equipped with a backup power source (c) to back up the microcomputer in the event of a power outage during cooking, and the microcomputer (a) is equipped with a
The power outage time during the outage is measured, and if the power outage is during the fermentation process, the power outage time is included in the fermentation process time, and if the power outage is in the kneading process or roasting process, the power outage time is not included in the process time. , is characterized by the addition of a function to continue controlling each process after power outage recovery.

[Effect]

Therefore, if a power outage occurs during cooking, the clock function of the microcomputer (a) will continue to measure time using the backup power supply, and the time of the power outage will be measured. Included in process time.

As a result, in the case of a stoppage in the fermentation process, the fermentation is treated as having proceeded for the duration of the power outage, and after the power is restored, the fermentation process or the next process is performed for the remaining time, and the kneading process or roasting process is carried out. In the case of a power outage, this power outage is treated as a standby state, and after the power outage is restored, the operation that stopped at - is continued.

〔Example〕

Next, this invention will be explained in detail with reference to drawings showing one embodiment thereof.

First, Figure 1 shows the configuration of a bread making machine, where (1) is the main body of the bread making machine, and inside the cooking chamber (2) is an open top surface.
) is formed, and this opening is covered with a lid (3).

(4) is a container with an open top, and a mounting base (5) provided on the outer bottom of the container (4) is attached to a mounting base (5) fixed on the inner bottom of the cooking chamber (2). By fitting by bayonet connection, it is removably installed in the cooking chamber (2).

(7) is a motor disposed at the bottom of the main body (1), and the drive shaft (8) via a speed reduction mechanism passes through the bottom wall of the cooking chamber (2) and the mounting table (5). It is installed in the laboratory (2).

(9) is a kneading blade whose base part is fitted into a recess Q (l) on the bottom of the container (4) and is rotatably supported, and has a rotation axis αυ guided downward from the center of the recess αq. , the rotating shaft αυ is removably connected to the drive shaft (8), and the motor (
7) rotates the kneading blades (9).

(2) is arranged in an annular manner at the bottom of the cooking chamber (2) and the container (4
Q3 is a temperature sensor that is pressed against the container (4) to detect the temperature, and is used to control the energization to the heater @.

Q4) is a display mounted on the front of the main unit (υ) that displays the current time or reserved timer time, a9 is a cooking operation indicator lamp, 0Q is a timer operation indicator lamp, αη is a start switch, and (g) is a cancel switch. , α is a time setting switch for setting the current time or the reserved timer time.

Next, Figure 2 shows a control circuit block, in which (4) is a microcomputer (hereinafter referred to as microcomputer), which is equipped with a clock function, a timer function, etc., and each switch (
In response to input signals such as operation signals from the operation unit 21) consisting of 17) to Q9 and temperature detection signals from the sensor α], the display unit (equipment) consisting of the display α4 and the lamps Qfil and Q* and the motor (7) are activated. ), the heater (b), and even the cooling air blowing means @. (c) is a backup power source consisting of a super capacitor, etc.

Next, the operation of the embodiment will be explained.

After storing bread ingredients necessary for one loaf of bread, such as strong flour, salt, shortening, skim milk, sugar, dry yeast, and water in the container (4), open the lid (3).
) and operate the start switch Q7),
The microcomputer handles the motor (7) according to the manufacturing process diagram in Figure 8.
, starts the operation of controlling the heater (2) and the air blower (e).

That is, the microcomputer (1) to which the start signal from the start switch αη is input from the operation unit 2υ first drives the motor (7) to rotate the kneading tool (9) and spread the bread in the container (4). While kneading the raw materials, energization of the heater (b) is controlled so that the internal temperature of the container (4) becomes 25C.

Next, when the first kneading step of 15 minutes is completed, the power supply to the motor (7) is cut off, and the temperature is reduced to 28'''C.
The heater (2) is energized so that
Perform the fermentation process.

Furthermore, when this fermentation process is completed, the temperature is lowered to 25C by driving the motor (7) and controlling the energization of the heater (2).
The second kneading step is carried out for 18 minutes.

After that, the power supply to the motor (7) is cut off, and the power supply to the heater (2) is controlled so that the internal temperature of the container (4) reaches 85 C, and a bench time process is started in which the kneaded bread ingredients are laid down and shaped. This is carried out for 20 minutes, and then the second fermentation step in which the bread ingredients are re-fermented is carried out, and the temperature is controlled at 85C in the same way as in the bench time step.

In addition, immediately after the bench time process, the motor (7
) may be added with a rounding step of rolling the raw materials with the kneading tool (9).

When the second fermentation step of 65 minutes is completed, in the next roasting step, the heater (2) is energized so that the internal temperature of the container (4) becomes 200 C, and this step is continued for 35 minutes. The raw materials are then baked into bread. Of course, the motor (7) is stopped in this step.

Furthermore, in the finishing process, the blowing means (2) is driven,
Cooling is performed by forcing air onto the surface of the bread and the surface of the container (4) to obtain non-sticky bread.

By the way, as mentioned above, the microcontroller has a motor (7
), heater (2), and air blower @ are controlled to automatically proceed with each process to manufacture bread.The main routine of the microcomputer for manufacturing this bread includes:
As shown in FIG. 4, a system is provided to determine whether a power outage has occurred.

When a stoppage occurs during cooking, the microcomputer (1) is kept energized by the pick-up power supply (c).
After determining a power outage based on a signal from a power outage detection means (not shown), exiting from the main routine, and passing the determination as to whether or not cooking is in progress with a Yes, this power outage occurs as the first. Determine whether it is in the second fermentation step or bench time step.

If the condition of Yes is satisfied in this judgment, the process time that was being executed just before the power outage is continued, and this operation is performed until the power outage is restored. When it is determined that the power outage has been restored, the main routine is returned again and cooking is started. Resume operation.

Further, if the determination for the fermentation or bench time process is No, the process time is not counted, and the process waits for the power to recover, and when the power is restored, the process returns to the main routine and resumes the cooking operation.

That is, 1st. In the case of a power outage during the second fermentation step or bench time step, the power outage time is included in the process time, and it is assumed that the fermentation or bench time step was in progress during the power outage, and after the power outage is restored.

If there is time remaining in this process time, the process operation continues, and if there is no time remaining, the process moves to the next process.

Also, 1st. In the case of a power outage during the second kneading step or the roasting step, the power outage time is not included in the process time, but is simply put into a standby state, and after the power outage is restored, the kneeling operation is continued.

As a result, the fermentation time will not be extended due to a power outage during the fermentation process and the bench time process, and overfermentation will be prevented.

Here, in the case of a power outage in the first fermentation process, bench time process, and second fermentation process, the heater (2) cannot be energized, so temperature control in that process becomes impossible, but the inside of the container (4) There is no problem with fermentation even if the temperature returns to room temperature.

In addition, in the example, the backup power supply (c) is used in the event of a power outage.
Although the microcomputer wire is energized by the power supply (c), it is also possible to back up only the memory and clock circuit of the microcomputer (1) using this power supply (c).

In this case, when a power outage occurs, the program counter data is updated by a power outage interrupt from the power outage detection circuit.

After saving process count time data, current time data, etc. to memory, and resetting the microcomputer (1) upon recovery from power outage, each data is read from memory to determine which process should be performed during power outage. In addition, only in the case of the fermentation process and bench time process, the power outage time can be calculated using the time data at the time of the power outage and the time data immediately after the power outage, and this is included in the process count time data to continue the operation. good.

〔Effect of the invention〕

As described above, according to the bread making machine of the present invention, when a power outage occurs during the cooking of bread manufacturing, if this power outage occurs during the fermentation process, the logic operation is in progress, and the The machine is placed on standby and continues to operate after the power is restored, so even if a power outage occurs during the fermentation process, the bread ingredients will not be overfermented, and the fermentation time can be controlled to a predetermined time, ensuring a consistently good finished product. It is possible to make bread.

[Brief explanation of the drawing]

The drawings show one embodiment of the bread making machine of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a control circuit block diagram, and Fig. 3 is a block diagram of the control circuit.
The figure is a process explanatory diagram, and the figure $4 is a flowchart for explaining the operation. (1)... Bread making machine body, (2)... Cooking chamber, (
4)... Container, (7)... Motor, (9)... Kneading blade, @... Heater, (a) 00. Microcomputer, (c)...backup power supply.

Claims (1)

[Claims] (1) A container that is removably attached to the cooking chamber of the main body of the bread making machine and has a kneading blade inside the bottom, a motor that rotates the kneading blade, a heater that heats the container, and a motor that rotates the kneading blade, a heater that heats the container, and a In a bread making machine comprising a microcomputer (hereinafter referred to as microcomputer) that controls the drive and automatically performs each process of kneading, fermenting, and roasting the bread ingredients stored in the container, the above-mentioned method is provided in the event of a power outage during cooking. The microcomputer is equipped with a backup power source to back up the microcomputer, and the microcomputer measures the power outage time during a power outage, and if the power outage occurs during the fermentation process, the power outage time is included in the fermentation process time. In this case, the bread making machine is further equipped with a function of excluding the power outage time from the process time and continuing control of each process after the power outage is restored.