JPH01160512A - Kneader - Google Patents

Abstract

PURPOSE: To improve kneading efficiency and to prevent a powder material in the vessel from remaining in no-kneaded condition by providing a projecting obstruction in the vessel and the obstruction can be relief-deformed by the force applied from a kneading material when a rotary body is rotated. CONSTITUTION: An obstruction 19 is projected in conjunction with a base shaft 21 from the center of a base plate 20, a movable shaft 22 is connected to the top of the base shaft 21 to make one body and the movable shaft 22 can not be rotated in the left direction when it and the base shaft 21 are arranged in series. When a kneading motor 17 is rotated in the normal direction, an impeller 18 is rotated in an arrow (a) direction, and a kneading material A gets caught with the obstruction 19 to improve kneading efficiency. A flour B remains at the corner of a vessel 14. When the kneading motor 17 is rotated in the reverse direction after a specified time is elapsed, the obstruction 19 is pushed away by the moving kneading material A and rotated to a 'relief- deformation' position, and a kneading frequency of the kneading material A in the vessel 14 is significantly increased, and the flour B remained at the corner is caught up in the kneading material A.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a mixer that kneads powder material contained in a container using a rotating body.

(Prior Art) This type of kneading machine is applied, for example, to a bread-making kneading machine that kneads wheat flour with yeast and water. For example, FIG. 7 shows a conventional example applied to a so-called automatic bread making machine that sequentially performs kneading, fermentation, baking, and fermentation of bread ingredients. Here, reference numeral 1 is a box-shaped container, and an impeller 2 as a rotating body for kneading powder materials such as wheat flour and water is disposed at the center of the inner bottom surface of the container 1. is a rod-shaped resistor 3 to enhance the kneading effect,
It protrudes substantially perpendicularly to the inner wall surface 1a so as to face the rotation center 2a of the impeller 2.

The operation of this kneading machine is such that the material containing flour and water as the main raw materials contained in the container 1 is moved between the impeller 2, which rotates in one direction as shown by the arrow in the figure, and the fixed resistor 3, etc. It is effectively kneaded by the generated frictional force or shearing force.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional configuration, some of the flour 4 that is blown away by the impeller 2 and pushed to a part of the corner of the peripheral wall in the container 1 at the start of kneading is mixed. The remaining flour 4 is left behind without being caught up in the kneaded material 5 that is being mixed, resulting in the inconvenience that the remaining flour 4 is stuck to the baked bread. This is because the resistor 3 is provided in the container 1, and as shown in FIG.
While the kneading action is enhanced, the kneaded material 5 becomes difficult to roll in the container 1 due to the movement of the impeller 2, and therefore the flour 4 in a part of the corner is less likely to be caught up in the kneaded material 5. It is.

The present invention has been made in view of the above-mentioned circumstances, and therefore, its object is to provide a mixer that has an excellent kneading effect and does not leave any powder material in a container until it has been kneaded.

[Structure of the Invention] (Means for Solving the Problems) A kneading machine according to the present invention is one in which powder material contained in a container is kneaded by a rotating body disposed in the container. , is characterized in that a resistor is provided that protrudes into the container, and the resistor is configured to escape and deform due to the force received from the kneaded material as the rotating body rotates.

(Function) When the rotating body starts rotating, part of the powder material contained in the container is pushed to the periphery of the container, but most of it is rolled inside the container by the rotating body. Under the kneading action, the mixture becomes a lumpy kneaded material and is further thoroughly kneaded. During this process, the resistor protruding into the container receives a force from the kneaded material moving within the container, escapes and deforms depending on the magnitude and direction of the force, and the resistance effect exerted on the kneaded material changes. When the resistance action increases, the kneading action due to the cooperation between the rotating body and the resistor increases, and when the resistance action decreases, it becomes difficult for the kneaded material to catch on the resistor, and the kneaded material accompanies the rotating body. The powder is rotated more frequently in the container, and the powdered material remaining on the periphery of the container is rolled up and taken into the kneaded material.

(Example) Hereinafter, a first example in which the present invention is applied to an automatic bread maker will be described with reference to FIGS. 1 to 5.

First, in FIG. 4 showing the overall configuration, 10 is an outer case, 11 is an inner case, 12 is a lid, and 13 is a control circuit device for the automatic bread maker attached to the side wall of the outer case 10.

Reference numeral 14 denotes a rectangular container with an open top surface that is detachably housed in the inner case 11 via a bayonet mechanism 15. In this container 14, ingredients such as flour, yeast, water, etc. are kneaded, - the next fermentation, etc. It goes through a series of steps: degassing, molding and fermentation, and baking. 16 is container 1
The electric heater 4 heats the electric heater 4, and its conduction and disconnection are controlled by the control circuit device 13. Reference numeral 17 denotes a kneading motor disposed below the container 14. The tip of its rotating shaft 17a penetrates the bottom wall of the container 14 and protrudes into the container 14, and an impeller 18, which is a rotating body, is attached to and detached from this protruding end. Possibly fitted.

The kneading motor 17 is energized/disconnected and its rotational direction is controlled by the control circuit device 13 .

Now, 19 is a resistor according to the present invention, and as shown in FIGS. 2 and 3, a base shaft 21 is integrally provided in the center of a disk-shaped substrate 20, and the base shaft 21 is A rod-shaped movable shaft 22 with a rounded tip (left end in the figure) is integrally connected to the tip.

As shown in FIG. 3, the tip of the base shaft 21 is formed with a groove 21a that opens toward the front and the left side, and the base end of the movable shaft 22 is provided with a horizontally flat, approximately semicircular connecting piece 22a. is formed, and the movable shaft 22 is connected to the base shaft 21 by the pin 23 with the connecting piece 22a fitted into the groove 21a of the base shaft 21.

Thereby, the resistor 19 can be deformed by turning the movable shaft 22 to the left with respect to the base shaft 21 from the state shown by the two-dot chain line to the state shown by the solid line, as shown in FIG.
From the state where the movable shaft 22 and the base shaft 21 are in a straight line, turning to the left in the figure is prevented. This resistor 19 is
As shown in FIG. 4, it is removably inserted into a mounting hole 14b provided in the side wall of the container 14 via an annular packing 24. 21b
A pair of positioning protrusions formed on the base shaft 21 and fixed in front of the circumference 1 regulate the axial direction of the pin 23 to be vertical. In such an attached state, the resistor 19 protrudes into the container 14 with its movable shaft 22 maintaining a state perpendicular to the inner wall surface 14a of the container as shown by the solid line in FIG.
"protruding position" and "relief deformation position" where the movable shaft 22 abuts parallel to the inner wall surface 14a of the container as shown by the broken line in the figure.
As shown by the arrow in the figure, it can be rotated horizontally between the two. When the movable shaft 22 is in the "protrusion position", the resistance action exerted by the resistor 19 on the kneaded material A is the greatest, and when the movable shaft 22 is in the "escaping deformation position", the resistance action is the weakest.

Next, the operation of the configuration 1- will be explained with reference to the operation time chart of FIG.

First, a desired amount of wheat flour, corresponding melon yeast, water, and other bread ingredients are put into the container 14 and a start operation is performed in the control circuit device 13. From then on, the crossing process is performed as shown in FIG. , a primary fermentation process in which the kneaded bread dough is fermented by yeast, a degassing process to remove the gas generated by fermentation, a shaping fermentation process to adjust the shape of the dough in the container 14, and a baking process for the dough after fermentation. , under the control of the control circuit device 13, automatically progressing sequentially as each predetermined time elapses.

First, in the mixing stroke, the kneading motor 17 repeatedly rotates in the forward direction for a relatively long time and in the reverse direction for a relatively short time, as shown by the width of the shaded area in FIG. The energization is controlled as follows. When the kneading motor 17 first rotates in the forward direction and the impeller 18 begins to rotate in the direction of arrow a as shown in FIG. Part B is thrown off and pressed against a part of the corner of the container 14. When the flour, water, and other ingredients are mixed together to form a lumpy kneaded material A, it is moved into the container 14 by the impeller 18.
The material rolling inside collides with the resistor 19 and its movement is increasingly inhibited. At this time, the resistor 19
is pushed by the kneaded material A and rotated to the above-mentioned "protruding position" as the kneaded material A is rotating clockwise along with the rotating impeller 18. Therefore, the resistance effect of the resistor 19 is greatly exerted, and the kneaded material A is
They are more likely to be caught in the crossfire, and their transfers are more likely to be blocked. When the kneaded material A is caught on the resistor 19, the kneading effect is significantly enhanced due to the thrust action of the impeller 18, which continues to rotate at a constant speed.

However, the transfer of the kneaded material A in the container 14 is blocked! If the flour B is left behind in a corner of the container 14 as described above, there will be less chance of it coming into contact with the transferred kneaded material A, and even if it reaches the point of starting baking. However, there is a risk that this will be left behind, causing an inconvenience in that it will end up in the baked bread. Therefore, in this embodiment, the rotational direction of the kneading motor 17 is reversed after a predetermined time has elapsed as shown in FIG. Then, the impeller 18 moves in the b direction (first
(see figure) to roll the kneaded material A in the opposite direction. Therefore, the resistor 19 is pushed by the kneaded material A moving counterclockwise inside the container 14 and turns to the "escaping deformation position". Therefore, as can be understood by referring to FIG.
This increases significantly compared to when the motor is rotated forward. For this reason, the phenomenon that the flour B remaining in the corners of the container 14 is rolled into the kneaded material A and removed occurs frequently. Then, after this relatively short reverse rotation time has elapsed, the kneading motor 17 returns to normal rotation again, and the kneading further proceeds including the newly rolled-in flour B. And in this example,
The forward/reverse control program for the kneading motor 17 is set so that, after the second reversal period and the final forward rotation period, a required cross-contact state is reached and the kneading process ends.

Next, the process moves on to the primary fermentation process in which the bread dough that has finished mixing is fermented, and at the beginning of this process, the electric heater 1
By intermittently energizing 6 twice for a short time each time,
The bread dough is heated to the appropriate temperature for fermentation, and then fermentation proceeds due to the fermentation heat produced by the yeast.

After fermentation, the bread dough contains bubbles of carbon dioxide gas produced in the overfermented culm, so the next step is to remove the gas.

In this embodiment, during this degassing process, the kneading motor 17 is continuously reversed as shown in FIG. 5, so that the resistance effect of the resistor 19 is not exerted to a large extent. Thereby, the kneading action in this process can be kept to the minimum necessary for degassing.

The bread dough that has been degassed is then subjected to shaping fermentation in order to adjust its shape within the container 14.

Here, as in the -next fermentation process, at the beginning of this process, the fifth
As shown in the figure, the electric heater 16 is intermittently energized for short periods of time.

After completing the molding fermentation, the process moves to the final process, the baking process, where the electric heater 1 is turned on using the energization pattern as shown in Figure 5.
6 is energized and the bread dough is baked.

FIG. 6 shows a second embodiment of the invention. The difference from the first embodiment lies in the configuration of the resistor 25.

That is, this resistor 25 is a rod-shaped body made of an elastic material such as synthetic rubber, and is integrated with a disk-shaped substrate 26 at its base end, and is prepared in the same manner as in the first embodiment. container 1
It is removably attached to the side wall surface of 4.

To explain the operation of this embodiment, the energization mode to the kneading motor 17 is set to be approximately the same as the operating time chart in FIG. It is determined to be in either direction of reversal. Then, when the kneading process is started, the viscoelasticity of the kneaded material has not increased at the beginning of this process, so the force exerted from the kneaded material A on the resistor 25 when the kneaded material A rolls is Therefore, the amount of deformation of the resistor 25 is small and its resistance effect is small. Therefore, the kneaded material A is in the impeller 18
The wheat flour B is pushed by and frequently rolls in the container 14, and in the same way as in the first embodiment, some of the flour B left behind at the periphery of the container 14 at the beginning of kneading is incorporated into the kneaded material A. I'll go. Then, as the kneading process progresses, from the kneaded material A to the resistor 2
Since the force applied to the resistor 25 increases and the amount of deformation of the resistor 25 increases, the resistive force exerted on the kneaded material A from the resistor 25 increases, allowing the resistor 25 to fully exert its kneading action. Can be done.

In addition, the shape of the resistor in the present invention, the location and method of attachment to the container, etc. may vary depending on the shape of the container, the state of arrangement of the rotor in the container, etc. Appropriate changes may be made without departing from the gist.

[Effects of the Invention] As is clear from the following explanation, according to the compound of the present invention, a resistor is protruded into a container in which a rotating body is disposed and accommodates a powder material, and the resistor is Since the body is made to be able to escape and deform according to the magnitude and direction of the force received from the kneaded material as the rotating body rotates, the resistance action of the resistor changes depending on this escape deformation, which makes it excellent. While obtaining a kneading effect, it is possible to secure the opportunity for transfer of the kneaded material within the container, and to prevent the powder material from remaining in the container.

[Brief explanation of the drawing]

Figures 1 to 5 show a first embodiment in which the present invention is applied to an automatic bread maker, with Figure 1 being a plan view of the container portion, and Figures 2 and 3 showing the resistor. perspective view and cross-sectional view,
FIG. 4 is an overall longitudinal sectional front view, and FIG. 5 is an operation time chart. FIG. 6 is a diagram corresponding to FIG. 1 showing the second embodiment. FIG. 7 is a diagram corresponding to FIG. 1 showing a conventional example. In the figure, 14 is a container, 14a is an inner wall surface of the container, 18 is an impeller (rotating body), and 19.25 is a resistor. Applicant Toshiba Corporation Figure 2 Figure 4 Figure 5

Claims (1)

[Claims] 1. In a device in which powder material contained in a container is kneaded by a rotating body disposed in the container, a resistor is provided that protrudes into the container, and this resistor is connected to the rotating body. A kneading machine characterized in that it is configured to be able to escape and deform due to the force received from the kneaded material as it rotates.