JPH051008B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cake making machine that automatically makes rice cakes after steaming glutinous rice in the same hopper.

Conventional technology Generally, in this type of mochi making machine, after steaming the glutinous rice in the hopper using steam led from a steam tank, electricity is switched to the motor side by manual operation to rotate the blades installed at the bottom of the hopper. By driving it, pounding of mochi was performed.

Various ideas have been made in the past regarding automatic switching from the "musu" process to the "tsuke" process. For example, the one shown in Japanese Utility Model Publication No. 50-23026 was constructed with an electric control circuit as shown in FIG.

In the figure, numeral 1 indicates a thermoswitch installed in the steam tank, and this thermoswitch 1 has a heater 2 installed in the steam tank on the set side S.
is connected to the reset side R, and a series circuit of a thermoswitch 3 and a motor 4 that rotationally drives the blades installed at the bottom of the hopper is connected, and a series circuit of a buzzer switch 5 and a buzzer 6 is connected in parallel to this series circuit. The circuit is connected. That is, when the thermo switch 1 is set to the set side R,
At the completion of the "Musu" process, the thermo switch 1 detects the temperature rise in the steam tank, switches the energization from the heater 2 side to the motor 4 and buzzer 6 sides, and automatically shifts to the "Turn on" process. Ta.

Problems to be Solved by the Invention Generally, a steam tank is equipped with an automatic temperature controller. However, in this type of automatic switching between "Musu" and "Tsuke", the temperature of the steam tank drops during the "Tsuke" process, and as a result, the automatic temperature regulator returns to normal and energizes the heater 2 side again. It turns out. One possible way to prevent this is to lower the return temperature of the automatic temperature controller, but in this case, it is almost impossible to set the return temperature, considering the return time in a low-temperature atmosphere and during continuous use.

Therefore, in the conventional example described above, a thermoswitch 1 is provided in place of the automatic temperature controller to prevent the temperature from returning to the heater 2 side. However, the thermoswitch 1 has a more complicated structure than an automatic temperature controller, and furthermore, the position of the operating knob for operating the thermoswitch 1 is limited, and an operating piece from the operating knob to the thermoswitch 1 is required. The structure was complex and not very productive.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a mochi pounding machine that has a simple configuration and is capable of automatically switching from the "musu" to the "tsuke" processes.

Means for Solving the Problems In order to solve the above problems, the present invention provides a hopper equipped with mochi pounding blades at the bottom, a steam tank equipped with a heater that generates steam guided into the hopper, a motor that rotationally drives the blade; a temperature regulator that detects a temperature rise in the steam tank during dry firing and cuts off electricity to the heater; an auxiliary heater that is energized at least when the motor is driven; and the temperature regulator and a heat-sensitive plate provided with an auxiliary heater and integrally provided with the steam tank, the temperature regulator and the auxiliary heater being located on opposite sides of the heat-sensitive plate and provided on the steam tank. The setting is such that the amount of heat transferred from the auxiliary heater to the temperature regulator is higher than the amount of heat transferred from the heater to the temperature regulator.

Effect By having the above configuration, it is possible to automatically switch from the "musu" process to the "tsuke" process, and in addition, since the auxiliary heater is energized in the "tsuke" process, the temperature can be adjusted. The vessel will be kept warm, and as a result, even in mid-winter temperatures, the temperature regulator will not return during the ``setting'' process and the ``setting'' process will not be interrupted.

Embodiments Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 4.

In the figure, 11 is the main body, 12 is a synthetic resin top frame that covers the upper opening of the main body 11, and has a hopper 13 which serves both as a steamer and a rice cake making bowl, and whose inner surface is treated with fluororesin. It is covered and formed. 14 is the lid of hopper 13, 15 is hopper 1
This blade 15 is made of synthetic resin and is installed in the center of the bottom of the main body 11, and is detachably connected to the rotating shaft of a motor 16 installed in the lower part of the main body 11.
Reference numeral 17 denotes a steam tank which constitutes a steam generation chamber in the lower part of the ceiling frame 12 and whose inner surface is treated with fluororesin.A sheathed heater 18 is attached to the outer bottom of the steam tank 17, and a sheathed heater 18 is installed in the center part. is provided with the rotation shaft of the motor 16 passing through it. Reference numeral 19 denotes a heat-sensitive plate made of a good heat conductor such as an aluminum plate and formed into a substantially L-shape.
The heat-sensitive plate 19 has a temperature regulator 20 on its front surface, and a non-flammable box-shaped winding fixed as an auxiliary heater on its back surface. Resistors 21 (hereinafter referred to as fixed resistors) are thermally disposed close to the temperature regulator 20, respectively. 22 is a mounting bracket for the fixed resistor 21; 23 is a mounting bracket for the sheathed heater 18 and the motor 1 when the temperature regulator 20 is short-circuited;
6 is a temperature fuse for cutting off the power, and 24 is a metal fitting for holding the temperature fuse 24.

Here, the mounting boss 17 of the steam tank 17
Thermal conduction due to contact between the temperature controller 20 and the one end 19a of the heat sensitive plate 19
The contact area is set so as to be lower than the heat conduction with 9a.

Reference numeral 25 denotes a hopper mounting plate provided on the outer bottom of the hopper 13, and the hopper mounting plate 25 is removably engaged in an airtight manner via a packing 26 provided at the upper end of the steam tank 17. 27 is a lid opening device that opens the lid 14 by rotation of the motor 16.

Next, the electric circuit shown in FIG. 3 will be explained. 30
is a switch body, consisting of a steaming switch 31, a mochi making switch 32, and an automatic changeover switch 33 for automatically switching between "musu" and "tsuke". In addition, when operating the automatic changeover switch 33, the steaming switch 3
1 is also closed at the same time. 20 is a single-pole double-throw type temperature controller, and this temperature controller 20 has a common terminal 20a.
A normal temperature closed terminal 20b and a normal temperature open terminal 20c are provided. That is, when a predetermined temperature is reached, the electrical circuit is switched from the normal temperature closed terminal 20b side to the normal temperature open terminal 20c side. Further, when the temperature drops to a predetermined temperature, it automatically returns to the normal temperature closed terminal 20b side. The steaming circuit 35, which is closed by the steaming switch 31 of the switch body 30, is connected to the temperature regulator 2 via the temperature fuse 24.
It is composed of a series circuit that connects the sheathed heater 18 and the steaming switch 31 via a common terminal 20a of 0 and a normal temperature closed terminal 20b. Also mochi pounding circuit 3
6 is a temperature fuse 24 and a mochi making switch 32
It consists of a series circuit that connects the motor 16 via the motor 16. The automatic switching circuit 37 for "Musu" and "Tsuku" is a series circuit that connects the automatic switching switch 33 and the motor 16 via the steaming circuit 35 and the normal temperature open terminal 20c of the temperature regulator 20.
It consists of a fixed resistor 21 and a series body of the steaming switch 31 connected in parallel between the motor 16.

The operation of the mochi pounding machine constructed as described above will now be explained.

First, put a predetermined amount of water into the steam tank 17,
Put the glutinous rice into the hopper 13 and complete the preparation.

When "Musu" and "Tsuke" are performed consecutively, operate the automatic switch 33 to switch the steaming switch 3.
When the circuit is closed together with 1, electricity is started to be supplied to the sheathed heater 18, and the glutinous rice is steamed in the hopper 13 by steam, and the "musu" process begins. When the evaporation of the water in the steam tank 17 is completed after a predetermined period of time has elapsed, the temperature of the steam tank 17 rises rapidly, and heat is transferred to the temperature controller 20 via the heat sensitive plate 19. At this time, the temperature regulator 20 detects this conductive heat and connects the energized path from the normal temperature closed terminal 20b to the normal temperature open terminal 2.
Switching to the 0c side, the power to the sheathed heater 18 is stopped, and the motor 16 and the fixed resistor 21 are energized to start a continuous and automatic "turning on" process. It should be noted that at the start of this "sticking" process, the lid 14 of the hopper 13 is opened by the lid opening device 27.
open.

According to the inventors' experiments, the sheathed heater 1
8 is 650W and the fixed resistor 21 is set to 20W, when the "attachment" process begins, the temperature stabilizes at around 100℃ in the "musu" process as shown in Figure 4, and then rises to the operating temperature. The temperature of the temperature controller 20 does not follow the temperature drop of the steam tank 17, but due to the conduction heat from the fixed resistor 21, the temperature reaches 120°C.
The front and back are almost always kept warm.

Here, the temperature regulator 20 in the "turn on" process,
Looking at the temperature changes at the mounting boss 17a of the steam tank 17 and the one end 19a of the heat-sensitive plate 19, which is the attachment part to the steam tank 17, the temperature difference between the temperature regulator 20 and the one end 19a of the heat-sensitive plate 19 is as follows.
Installation boss 17a of steam tank 17 and heat sensitive plate 1
The temperature difference between the fixed resistor 21 and one end 19a of the fixed resistor 21 is small, which means that the conduction heat from the fixed resistor 21 is effectively working to keep the temperature regulator 20 warm by reducing the conduction to the steam tank 17. ing.
When the "sticking" process passes for a predetermined period of time, the hopper 1
Within 3, the mochi has risen and the mochi pounding is complete.

Next, if only the "musu" step is to be performed, the steaming switch 31 is closed and the steaming is completed after a predetermined period of time has elapsed in the same manner as above. In addition, "Musu"
At the completion of the stroke, the temperature regulator 20 operates in the same way as above, but since the automatic switch 33 is not closed, it only stops the energization of the sheathed heater 18 and does not shift to the "turn on" stroke. .

Moreover, when performing only the "making" process, the mochi pounding switch 32 is closed and the motor 16 is energized directly without going through the temperature regulator 20. In this case, the fixed resistor 21 is not energized because the steam switch 31 is not closed. In addition, when performing only the "turn on" process as described above, the temperature regulator 20 does not operate, so it does not return during the "turn on" process, and therefore the temperature regulator 20 is kept warm. do not have to.

As described above, according to this embodiment, the heat-sensitive plate 19 having the temperature regulator 20 on the front surface and the fixed resistor 21 on the back surface is attached to the mounting boss 17a of the steam tank 17. , in this case, the temperature regulator 20 and one end 19a of the heat sensitive plate 19
Since the structure is such that the heat conduction between the mounting boss 17a of the steam tank 17 and one end 19a of the heat-sensitive plate 19 is lower than that between It operates by reliably sensing the sudden temperature rise of the steam tank 17, and in the "turning" process, the heat generated by the fixed resistor 21 provided on the back side does not escape to the steam tank 17 side, making it effective. Since the temperature regulator 20 is kept warm during the process, the temperature regulator 20 will not return to its normal state even in the low temperatures of mid-winter, and as a result, the rice cake can be pounded without failure.

5 and 6 show other embodiments of the present invention. In FIG. 5, a heat-sensitive plate 40 is integrally molded with a steam tank 17 by die-casting, etc., and this heat-sensitive plate 40 has a book. As in the embodiment, the temperature regulator 20 and the fixed resistor 21 are provided facing each other in a heat-sensitive manner, and a notch 40a is provided in the heat-sensitive plate 40 near the base of the steam tank 17 to reduce heat conduction. Even in this configuration, the same effects as in this embodiment can be obtained.

Further, in FIG. 6, a mica heater 45 is provided as an auxiliary heater, and a support plate 46 of this mica heater 45 is formed of a good thermal conductor such as an aluminum plate. By attaching the temperature regulator 47 and the other 46b to the steam tank 17, the mica heater 45 can effectively keep the temperature regulator 47 warm without causing heat to escape to the steam tank 17 side. Even in this configuration, the same effects as in this embodiment can be obtained.

In addition, in each of the above embodiments, the temperature controller 2
0 or 47 and using the fixed resistor 21 or the mica heater 45 as the auxiliary heater, the same effect can be obtained by using various other types of heaters. In addition, the design can be changed as appropriate in the arrangement and configuration of these devices.The key point is that the temperature controller can be
At the completion of the process, the rapid temperature rise in the steam tank, which has a large calorific value, is detected with minimal conductive heat, and in the "turning" process, it effectively reduces the conductive heat from the auxiliary heater to the steam tank. It is good as long as it can keep the temperature controller warm.

Effects of the Invention As described above, the present invention includes a temperature regulator that detects a temperature rise during dry firing of the steam tank and cuts off power to the heater, and an auxiliary heater that is energized at least when the motor is driven. , the heat conduction from the auxiliary heater to the temperature regulator is made higher than the heat conduction from the heater provided in the steam tank to the temperature regulator, and a heat-sensitive plate on which the temperature regulator and the auxiliary heater are disposed is connected to the steam tank. Because it is integrated, you can easily move from the “Musu” process to the “Tsuku” process.
In addition to being able to automatically switch to the stroke,
During the "turn on" process, the auxiliary heater is energized, so the temperature controller is kept warm, and as a result, even in the middle of winter, the "turn on"
The rice cake pounding process is not interrupted by the return of the temperature regulator during the process, and is easy to use and allows for failure-free rice cake pounding.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the main parts of a mochi making machine showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the same mochi making machine, Fig. 3 is an electric circuit diagram of the same mochi making machine, Figure 4 is a graph showing temperature changes in the main parts of the rice cake making machine, Figures 5 and 6 are vertical cross-sectional views of the main parts of the rice cake making machine showing other embodiments of the present invention, and Figure 7 is a graph showing a conventional rice cake making machine. It is an electric circuit diagram of the mochi pounding machine. 13...Hopper, 15...Blade, 16...Motor, 17...Steam tank, 17a...Mounting boss, 18...Sheathed heater, 19...Thermosensitive plate, 19a...One end, 20...Temperature adjustment Machine, 2
1...Fixed resistor (auxiliary heater).

Claims (1)

[Claims] 1. A hopper with mochi pounding blades built into the bottom, a steam tank equipped with a heater that generates steam guided into the hopper, a motor that rotates the blades, and a temperature rise in the steam tank during dry baking. a temperature regulator that detects and cuts off power to the heater, an auxiliary heater that energizes at least when the motor is driven, and the temperature regulator and the auxiliary heater are provided and are integrally provided with the steam tank. It has a heat sensitive plate,
The temperature regulator and auxiliary heater are located on opposite sides of the heat sensitive plate, and the amount of heat conducted from the auxiliary heater to the temperature regulator is higher than the amount of heat transferred from the heater installed in the steam tank to the temperature regulator. A mochi pounding machine set as follows.