JPH0686B2 - Automatic bread machine - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an automatic bread maker capable of automatically baking bread simply by charging a predetermined material.

Conventional technology In an automatic bread machine, as shown in Fig. 4 (a) and (b), the bread ingredients are kneaded, and after a long aging process, yeast is added and kneaded again to ferment this, and then the gas is added. After removing the mixture, it is shaped and fermented, and the process of baking it is automatically performed.However, when kneading conventional dough, the temperature of the dough rises as it is kneaded.
When the temperature reached 28 ° C or higher, the kneading operation was stopped to prevent the temperature of the dough from further increasing. This is because if the dough temperature rises too much during kneading, bad bread will be produced, and the dough must be kneaded at least at 35 ° C or lower. However, if the kneading operation is stopped midway due to the temperature rise, when the temperature is high, the kneading time is short and the amount of gluten produced is small, so that the bread tends to be sticky and non-glossy.

Problems to be Solved by the Invention As described above, the kneading operation is conventionally stopped in order to prevent the temperature of the bread dough from rising, but this has a problem that the kneading time is insufficient.

The present invention is to solve this problem, even after the kneading once stopped above a certain temperature, after kneading for a while, perform the kneading operation again when the dough temperature decreases,
It is an object to provide an automatic bread maker that eliminates insufficient kneading.

Means for Solving the Problems In order to solve the above problems, an automatic bread maker according to the present invention includes a baking chamber having a heater, a bread baking mold detachably mountable in the baking chamber, and an inner bottom of the baking mold. A kneading device provided with a kneading blade and a motor for driving the kneading blade, a temperature detecting means for detecting the temperature of the bread baking mold, and a temperature detecting means for detecting the temperature of the bread baking mold. When the temperature exceeds a certain temperature, the motor is stopped, and when the temperature of the baking pan falls below a certain temperature, the motor is activated again, and the operating time of the motor is integrated. And a controller for controlling the heater and the motor so as to repeat this until a predetermined time calculated by the time when the motor is first stopped. is there.

Action With the above configuration, even after the kneading has been stopped once for a certain temperature or more, after kneading for a while, the kneading operation is performed again when the dough temperature drops, and the accumulated time of the kneading time stops the motor first. It is extended until it reaches the predetermined time calculated by the time, to prevent insufficient kneading at high temperature,
Make the bread better.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows the entire automatic bread maker used in the present invention,
Chassis 2 provided inside the body 1 of the bread maker
The motor 3 is fixed to the motor 3, the small pulley 4 is fixed to the shaft of the motor 3, and the power is transmitted to the large pulley 6 via the belt 5. A heater 8 is provided in the baking chamber 7, and a baking pan 10 having a detachable kneading blade 9 on the bottom is arranged on the heater 8. A shaft 9a of the kneading blade 9 is fixed to a large pulley 6. Driven by the motor 3, and the kneading blade 9 and the motor 3 constitute a kneading device. An elastically supported temperature detecting portion 11 projects from the side surface of the baking chamber 7 and is pressed against the side surface of the bread baking mold 10. The upper surface of the baking chamber 7 is closed by an openable / closable lid 12 and an inner lid 13 provided on the lower surface of the lid 12.
Reference numeral 14 is a control device, which is a switch panel 15 as shown in FIG.
The motor 3 and the heater 8 are controlled by the operation of 1 and the input information of the temperature detection unit 11. Reference numeral 16 is a yeast input port provided in the lid 12 for inputting yeast after the splashing step.

1 (a) and 1 (b) are process characteristic diagrams schematically showing changes in bread dough temperature and motor energization in each step in the automatic bread maker of the present invention.

The operation of the controller 14 will be described below with reference to FIG.
First, when ingredients other than yeast such as flour, water, butter, and sugar are put into the bread baking mold 10 to start the baking, the temperature of the dough gradually increases due to the pre-kneading. When the temperature is low, the dough is kneaded for 30 minutes. When the temperature is approximately 25 ° C or higher, the dough temperature reaches 33 ° C or higher within 30 minutes as shown in Fig. 1 (a). , Then Fig. 1
As shown in (b), the motor 3 is stopped. The pre-kneading time until this stop is t minutes. When the motor 3 is stopped, the bread dough temperature gradually decreases, and when the temperature becomes 33 ° C. or less, the motor 3 starts the pre-kneading operation again. By repeating such an operation, the accumulated time of the operation time of the motor 3 (0.7 t
When it exceeds +20) minutes, the pre-kneading operation by the motor 3 is finished, and the aging process for a certain time starts. Here, when t is 30 or more, the cumulative time is set to 30, and the pre-kneading operation is finished without performing the second and subsequent pre-kneading operations, and the step of sneaking begins. We will correct this question as follows. "Enter. In addition, the accumulated time is generally expressed by the formula (a x t + b),
a and b are constants determined by experiment. In this formula, the longer the pre-kneading time t is, the longer the integrated time is.
Since t + b ≧ t, the maximum time of the pre-kneading time t is Becomes If t is 30 or more, the cumulative time is 30 and 2
The pre-kneading operation is ended without performing the pre-kneading after the first time, and the sneak step is started. After this seeding time, yeast is added, the mixture is kneaded again for about 15 minutes, and then fermentation is started. During this fermentation, degassing is performed three times as shown in FIG. 1 (b). About 50 minutes after the third degassing, the firing starts,
Baking is completed by baking at 150 ° C for about 1 hour.

In this example, a microcomputer was used to control the heater and the motor, measure the time, and calculate the integrated time. Further, the above arithmetic expression varies depending on the main body configuration and is determined by experiment.

Effects of the Invention As described above, the automatic bread maker of the present invention temporarily stops the pre-kneading operation when the temperature of the bread baking mold during the pre-kneading becomes equal to or higher than a certain temperature, and again performs the pre-kneading operation when the temperature falls below the certain temperature. By repeating the operation of starting, it is possible to secure a necessary and sufficient time for pre-kneading without raising the temperature of the dough, and it is possible to make a well-finished bread even at a high room temperature. Then, by calculating the integrated time of pre-kneading by the time when the motor first stopped, when the temperature is high and the first stop time is short, the pre-kneading time is set shorter than the optimum value at low temperature according to the stop time. By doing so, it is possible to avoid the situation where the motor is repeatedly turned on and off for too long when the temperature is high, and the dough is damaged.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, and FIG. 1 (a)
(b) is a process characteristic diagram schematically showing changes in bread dough temperature and motor energization in each step of the automatic bread maker of the present invention, FIG. 2 is a schematic vertical sectional view of the automatic bread maker, and FIG. 3 is FIG. 4 (a) and FIG. 4 (b) are circuit block diagrams including a control device, which are process characteristic diagrams schematically showing changes in bread dough temperature and motor energization in each step of a conventional automatic bread making machine. 3 ... Motor, 7 ... Baking chamber, 8 ... Heater, 9 ... Kneading blade,
10 ... Bread baking mold, 11 ... Temperature detection unit, 14 ... Control device, 15 ...
Switch panel.

Claims (1)

[Claims] 1. A kneading device comprising a baking chamber having a heater, a bread baking mold which can be detachably mounted in the baking chamber, a kneading blade provided on the inner bottom of the baking pan and a motor for driving the kneading blade. A temperature detecting means for detecting the temperature of the bread baking mold, and the temperature detecting means detects that the temperature of the bread baking mold at the time of the pre-kneading is equal to or higher than a predetermined temperature, and stops the motor, When the temperature of the motor is detected to be below a certain temperature, the motor is operated again, and this is repeated until the accumulated time of the operating time of the motor reaches a predetermined time calculated by the time when the motor is first stopped. An automatic bread machine having a controller for controlling the heater and the motor.