JP3162001B2 - Rice mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice milling machine for milling brown rice, and more particularly to a rice milling machine that can easily remove bran when shaving off brown rice and reduce the frictional heat of rice during milling. Regarding rice milling machine.

[0002]

2. Description of the Related Art Conventionally, in a rice milling machine, as described in Japanese Utility Model Publication No. 5-36500 by the same applicant, brown rice (rice husk) is milled by a milling shaft (milling cylinder) and a milling net (milling roll). The rice is milled by scraping off the bran layer. In this case, if the cut-off bran is not properly separated, that is, if the bran is not sufficiently cut, the oxidation rate of the rice is increased, the taste is reduced, and the aging property of the rice is increased. In particular, so-called fractionation (for example, when the bran layer is 5
In the state of 0% shaving off, 5 minutes and 30% shaving off, 7 minutes), poor separation of the shaved bran leads to a faster oxidation rate of rice and markedly reduced taste. Become. Therefore, in a commercial rice milling machine, the bran that has been shaved off is sucked and the bran is forcibly separated, but the device is complicated and large because it is necessary to arrange a suction machine or the like in the bran container. In addition, the equipment has become expensive and has not been employed in household rice mills. In a conventional household rice mill, the bran shaved off by a milling shaft, a milling net, etc., is allowed to fall naturally, and the rice bran is poorly cut.

[0003] When rice is milled by a milling shaft, a milling net or the like, frictional heat is generated and the temperature of the rice increases. When the temperature of rice increases, the taste deteriorates due to quality deterioration. In a commercial rice mill, rice is gradually divided into three stages, but in a household rice mill, friction heat is particularly high because rice is milled at a stroke. Furthermore, since the bran has an oil component, the bran that has been shaved off during milling tends to adhere to the milling shaft, milling net, and the like. In particular, when the temperature increases due to frictional heat, the bran tends to adhere when the temperature decreases after milling. Become. For this reason, it is necessary to disassemble the rice milling machine and periodically clean the milling shaft, the milling net and the like to remove the bran, and the maintenance is troublesome.

[0004]

As described above, in the conventional household rice mill, no measures are taken with respect to poor rice bran cutting and generation of frictional heat during rice polishing. In addition, the taste of rice after milling was reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the quality of rice by making it possible to easily and surely separate the bran when shaving off the brown rice bran and to reduce the frictional heat of the rice at the time of polishing to reduce the taste of the rice. To provide a machine.

[0006]

In order to achieve the above object, a rice mill according to the present invention forcibly separates bran from rice by blowing air onto a rice milling shaft, a rice milling net, and the like. At the same time, the rice and the milled rice are actively cooled by the wind to prevent the temperature of the rice from rising due to frictional heat.

[0007] In the rice mill configured as described above, bran is forcibly separated from the rice by the wind.
The rice bran is reliably and easily separated, and the frictional heat of the rice at the time of milling is removed by the wind, so that the temperature of the rice is reduced and the deterioration of the taste of the rice can be prevented. Further, since the bran is forcibly separated by the wind and the rice and the milled rice are cooled by the wind, the adhesion of the bran to the milled rice is prevented, and the cleaning of the milled rice becomes almost unnecessary, so that maintenance becomes extremely easy. In this way, the wind is positively applied to the milled rice and the rice during milling to prevent the temperature of the rice from increasing, prevent the deterioration of the taste of rice, and prevent the adhesion of bran to the milled rice to facilitate maintenance. The technical idea of doing so is not suggested in the prior art, especially in the prior art for sucking and separating bran.

[0008] Further, a rice mill according to the present invention has a milling shaft and a milling net, a milling unit for milling brown rice, a rice container for storing rice milled by the milling unit, and milling by the milling unit. A bran container for storing the bran separated from the rice, a fan for generating wind, and a blower for blowing the wind generated by the fan onto the milled rice portion and guiding the wind passing through the milled rice portion into the bran container. A duct, a first motor that drives and rotates the milling shaft, a second motor that drives and rotates the fan, a casing that houses all the components, and a motor storage chamber and a container storage chamber that store the casing in a motor storage chamber and a container storage chamber. A first and a second motor are stored in the motor storage chamber, and the rice storage section, the rice container, the bran container, the fan, and the air duct are stored in the container storage chamber. The above rice milling department The wind is applied to the milling shaft and the milling net to forcibly separate the bran from the milled rice, and the separated bran is accommodated in the bran container by the wind that has passed through the milling unit. The rice mill and the milled rice are cooled by the wind to prevent the temperature of the rice from rising due to frictional heat during the milling.

Further, the rice bran container has a first opening for guiding the air containing the rice bran that has passed through the rice milling section into the rice bran container along the blowing duct, and a wind introduced to the rice bran container inside. A second opening outside the bran container and letting out into the container storage chamber, a filter is provided on the entire inner surface of the second opening, and the filter is guided into the bran container by the filter. It is configured such that only the wind out of the wind including the rice bran is allowed to escape to the outside and the rice bran is not allowed to pass outside. With such a configuration, the bran forcibly separated by the wind is guided to the inside of the bran container along the blowing duct, and stored therein without being diffused inside the bran container.

An opening is provided in the vicinity of the fan of the air duct so that air discharged from the second opening of the bran container is sucked into the air duct through the opening of the air duct. It is configured. Thus, the opening of the air duct functions as an intake port of the fan, the second opening of the bran container functions as an exhaust port of the fan, and the intake port and the exhaust port are located in the same container compartment, which is the same partition chamber. Therefore, the temperature difference between the intake air and the exhaust gas in the air duct is reduced, and stable rice polishing can be performed. That is, especially in winter, the outside air temperature is low, and if the outside air flows into the milled rice part, the rice may be cracked due to the low temperature, but such a situation is prevented.

Further, in one example of the present invention, an opening (intake adjusting port) whose opening can be adjusted is provided near the fan in the container storage chamber of the casing. With such a configuration, for example, in the winter, the outside air temperature is low as described above, and when the outside air flows into the rice milling section, the rice may crack due to low temperature. Low-temperature air can be prevented from flowing into the air. On the other hand, when the temperature is high, such as in summer, if the container storage room is closed, the temperature of the rice polishing part becomes high, and the quality of rice may deteriorate and the taste may drop. Can be opened to allow the outside air to flow into the rice mill to prevent the rice mill from becoming hot.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a rice mill according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing the appearance of a rice mill according to the present invention, wherein 1 is a rice mill main body, 1a is a right side cover of the rice mill, 1b is a left side cover, 1c is a back cover, 1d is a bottom cover, 1e. Reference numeral 2 denotes a front cover, and 2 denotes a hopper portion which also serves as an upper cover and a brown rice table, and these covers constitute a rice mill casing. 4 is a hopper receiving portion for introducing brown rice into the rice milling machine, 8 is a bran container for storing the rice after polishing, 10 is a rice container for storing the rice after polishing, and 12 is rice polishing provided on the entire inclined portion of the hopper 2. A power switch of the machine, 14 is a power cord of the rice mill, 15 is an intake adjustment port provided on the right side cover 1a, and 60 is a slide knob for adjusting whiteness of rice (the degree of division). Reference numeral 61 denotes a slot provided on the entire inclined portion of the hopper 2 for sliding the knob 60.

FIG. 2 is a perspective view showing the inside of the rice mill of FIG. 1, and includes a hopper section 2, a front cover 1e, and a right side cover 1.
5A and a state in which the bran receiving plate 44 in FIG. 3 and the whiteness adjusting device 62 in FIG. 4 are removed. FIG. 3 is a front view of the rice mill of FIG. 1 and includes a hopper portion 2, a front cover 1e, and left and right side covers 1.
FIGS. 5A and 5B are diagrams illustrating a state where a whiteness adjustment device and the like in FIG. 4 are removed. FIG. 4 is a side view of the rice mill of FIG. 1 as viewed from the left side, and shows a state where the left side cover 1b is removed. FIG. 5 is a top view of the rice mill of FIG. 1 and shows a state where a portion of the container storage chamber 20 of the hopper section 2 and the like are removed. As is apparent from these figures, the rice mill comprises a container storage room 20 and a motor storage room 22, and the motor storage room 22 and the container storage room 2
0 is divided by the partition plate 24. The container storage room 20 includes a bran container 8, a rice container 10, and a ventilation duct 30.
And a milling shaft 40 and a milling net 42 constituting a milling unit, a rice flow guide 36 for flowing milled rice into the rice container 10, a whiteness adjusting device 62 for adjusting the whiteness of brown rice, and the like. The blower duct 30 covers a milling shaft 40, a milling net 42, and the like, which are milling units, and houses a fan for blowing air, for example, a blower fan 32. The motor storage room 22 includes a milling shaft driving motor 26 for driving and rotating the milling shaft 40, a storage room 27 for storing the milling shaft driving motor 26, and a blower fan driving motor 28 for driving and rotating the blower fan 32. And a conversion unit (not shown) that is connected to the switch 12, the power cord 14, and the motors 26 and 28, and converts an AC voltage supplied from a power supply through the power cord and the switch to supply a driving voltage to the motors 26 and 28. Are stored. A part of the upper surface of the milling shaft drive motor storage chamber 27 is opened to form a hopper receiving portion 4.

As shown in FIG. 3, FIG. 4, and FIG.
Numeral 4 is connected to and fixed to the partition plate 24 by bolts 46, and the blower duct 30 is fixedly supported by the bran removing support plate 44 and the bolts 46. The rice flow guide 36 is fixed to the bran removing plate 44. Milling axis 4
0 and both ends of the rice mill 42 are the bran removing plate 44 and the partition plate 24.
It is supported by and. The configuration of the bran receiving plate 44 is the same as that of Japanese Utility Model Publication No. 5-36500, and a detailed description thereof will be omitted.

The structure of the whiteness adjusting device 62 will be described with reference to FIGS. In FIG. 5, elements 80-86 of the whiteness adjusting device 62 are omitted. As is apparent from these figures, particularly from FIG. 12, the whiteness adjustment knob 6
0 is connected to one end of the connecting rod 83, and the other end of the connecting rod 83 is connected to one surface of the whiteness adjusting plate 80. The other surface of the whiteness adjusting plate 80 is inclined and has many concave portions 80a.
Are formed. A hole 82 is provided near one end of the connecting rod 83, and a shaft 86 passes through the hole. The connecting rod 83 and the knob 60 are moved along the shaft 86 by arrows X and Y.
It is slidable in the direction. Supporting pieces 84a are provided at both ends of the support fitting 84, both ends of the shaft 86 are fixed to the supporting pieces 84a, and two more supporting pieces 84a are fixed to the hopper 2. Therefore, when the knob 60 is slid in the directions of the arrows X and Y along the slot 61 (FIG. 1), the whiteness adjusting plate 80 is also slid in the directions of the arrows X and Y.

In FIG. 12, the upper half and the lower half of the whiteness adjusting device 62 are illustrated separately for easy understanding. The upper part of 75 is pressed. The lower end of the operating rod 75 is coupled to the upper end of a support piece 72a provided at one end of the operation fitting 72, and the other end of the operation fitting 72 is provided with a support piece 72b. Holes 73 are provided in these support pieces 72a and 72b, and a shaft 74 is penetrated. One end 74 of shaft 74
a is firmly screwed to the bran receiving plate 44 and the other end 74
b is fixed to a support piece 63a at the other end of the operation plate 63. A spring 78 is wound around the shaft 74 between the support piece 72b and the support piece 63a.
2. Therefore, the operating rod 75 is deviated in the direction of the arrow L.
The operation rod 75 passes through the opening 70 of the operation plate 63, and the operation rod 75 is
The operation plate 63 is pressed against the end portion 70a of the first position and is deviated in the L direction. A resistance plate fixing plate 65 is provided at one end of the operation plate 63, cutouts 67 are provided at both ends of the plate 65, and two support plates 68 fixed to the bran removal receiving plate 44 are inserted. Thereby, the plate 65, and thus the operation plate 63, can slide in the L and M directions along the support plate 68. An operation shaft 64 is provided at the tip of the plate 65.
Is fixed to the other end of the operation shaft 64, and a disk-shaped resistance plate 66 is fixed to the other end of the operation shaft 64.
And the milling shaft 42, which reaches the opening 44a.

In such a configuration, when the whiteness adjusting knob 60 is moved in the Y direction, the whiteness adjusting plate 80 is also moved in the Y direction, so that the operating rod 75 is moved in the M direction, whereby the spring 78 is contracted, The resistance plate 66 becomes difficult to open. That is, the resistance plate 66 is pressed against the opening 44a of the rice bran receiving plate 44, which is the outlet of the rice after milling, so that the pressure on the opening of the resistance plate is increased, and the amount of rice to be output is reduced,
The time for rubbing with the milling shaft 40 becomes longer and the whiteness increases. On the other hand, when the whiteness adjusting knob 60 is moved in the X direction, the whiteness adjusting plate 80 is also moved in the X direction, so that the operating rod 75 is moved in the L direction, whereby the spring 78 is extended and the resistance plate 6 is moved.
6 becomes easy to open. Therefore, the opening 4 of the rice bran receiving plate 44
As the pressure of the resistance plate 66 against 4a decreases, the amount of rice coming out increases, the time rubbed with the milling shaft 40 decreases, and the whiteness decreases (that is, separation becomes possible). The configuration of the device for adjusting the whiteness may be similar to that of Japanese Utility Model Publication No. 5-36500.

FIG. 6 is a perspective view showing a main part of the rice mill of FIG. 1, showing a state in which a part of the air duct 30 has been removed.
A rotating shaft 29 of the blower fan 32 is connected to a motor 28 through a side surface of the blower duct 30, and generates a wind when rotated by the motor 28, and blows the wind along the blower duct 30 to the milling shaft 40 and the milling net. 42. The air duct 30 is configured to apply the wind generated by the blower fan 32 to the milling shaft 40 and the milling net 42, and then guide the wind downward into the bran container 8.

FIG. 7 is a perspective view of the bran container 8 and FIG. 8 is a sectional view taken along line VIII-VIII of the bran container of FIG. In the container 8, 50 is a bran receiving opening for receiving the bran blown off by the wind hitting the milling net 42 and carried along the air duct 30 and receiving the bran therein, 54 is an upper cover, and 52 is a blower blowing on the milling net 42. Bran container 8 along duct 30
An opening 52 provided in the upper cover 54 for allowing the wind carrying the bran flowing into the inside to escape to the outside, and the opening 52 is provided with a lattice frame 53, and the entire surface of the lattice frame is provided inside. A filter 56 made of polyurethane foam, sponge, fine wire mesh, or the like is provided, and has a function of preventing air from flowing out of the bran container 8 while allowing air to escape. This allows the wind to flow smoothly without convection inside the bran container 8, thereby preventing the bran from diffusing inside the container 8. 3 and 4, the upper part 50a of the bran receiving opening 50 is fitted with the lower end part 30a which is the outlet of the air duct 30, so that the bran is prevented from leaking out of the container 8. You.

As shown in FIGS. 2 and 3, an opening 34 is provided in a portion of the air duct 30 near the fan 32.
The air discharged from the opening 52 of the bran container 8 is configured to be sucked into the ventilation duct 30 from the opening 34 of the ventilation duct 30. Thus, the opening 34 of the air duct 30 functions as an intake port of the fan 32, and the opening 52 of the bran container 8 functions as an exhaust port of the fan. The intake port and the exhaust port are the same partition chamber. Since it is in the storage room 20, the temperature difference between the intake air and the exhaust gas in the air duct is reduced, and stable rice polishing can be performed. That is, especially in winter, the outside air temperature is low, and if the outside air flows into the milled rice part, the rice may be cracked due to the low temperature, but such a situation is prevented. Therefore, when the rice mill of the present invention is provided with the following intake adjustment port 15, it is preferable to close the intake adjustment port 15 in winter. Further, since the two motors 26 and 28 are both housed in the motor storage room 22, the heat generated by the motors is
To prevent the temperature inside the container storage chamber 20 from being raised.

Further, in the rice polishing machine of the present invention, the opening of the casing (for example, the right side cover 1a) can be adjusted near the fan 32 of the container storage chamber 20, as shown in FIGS. A simple opening (intake adjustment port) 15 may be provided. For example, as shown in FIG. 9, the intake adjustment port 15 is provided with two semicircular plates 7 rotatable around an axis 70.
The opening degree α changes when the handle 73 or the like is pulled. With such a configuration, for example, in the winter, the outside air temperature is low as described above, and when the outside air flows into the milling portion, the rice may crack due to the low temperature. It is possible to prevent low-temperature air from flowing into the rice polishing section. On the other hand, when the temperature is high, such as in summer, if the container storage room is closed, the temperature of the rice polishing part becomes high, and the quality of rice may deteriorate and the taste may drop. 15 can be opened to allow outside air to flow into the rice mill to prevent the rice mill from becoming hot.

Next, the operation of the rice mill according to the present invention thus configured will be described with reference to FIG. When the power switch 12 is turned on, the motor 26 is driven and the rice polishing shaft 40 is turned on.
Is rotated, and the milling of the brown rice put in the hopper receptacle 4 is started. At the same time, the motor 28 is driven and the fan 3
2 rotates and blows air to the milling shaft 40 and the milling net 42. Thereby, the bran adhering to the milled rice is forcibly separated and flows into the bran container 8 from the bran receiving opening 50 along the air duct 30 together with the wind. The wind carrying the bran flowing into the bran container 8 is discharged to the outside through the opening 52, and the bran is prevented from being discharged to the outside by the filter 56 in the opening 52, and is deposited inside the container 8. In this way, the bran is reliably and easily separated from the rice. Further, at this time, the wind removes the frictional heat of the rice and the milled rice shaft during the milling by the wind, thereby lowering the temperature of the rice. On the other hand, the milled rice is stored in the rice container 10 along the rice sink guide 36.

FIG. 11 is a view showing another example of the fan and the air duct in the rice mill of FIG. 1. In the above example, a so-called cylindrical sirocco fan is used as the fan 32, as shown in FIG. A normal flat fan 32a may be used. In this case, the drive shaft 29a of the fan 32a is
However, since the wind is sent out in parallel with the milling shaft 42 unlike the sirocco fan, the shape of the air duct 30a is slightly different from the shape of the air duct 30, and the air from the fan 32a is bent at the curved portion 30a1. Designed to direct the wind towards the rice mill. Even when such a fan is used, the same effect as that of the above rice mill can be obtained.

[0024]

In the rice mill according to the present invention, the bran is forcibly separated from the rice after the rice is milled by the wind, so that the bran is reliably and easily separated, and the frictional heat of the rice during the rice polishing is reduced. The temperature of the rice is lowered because it is robbed by the wind,
The taste of rice can be prevented from deteriorating. In particular, when fractionating rice, the bran is forcibly separated and the bran breakage is greatly improved, so that rice oxidation can be suppressed and rice aging can be prevented, so that good taste can be maintained. Further, since the bran is forcibly separated by the wind, the cleaning of the bran in the milled rice area is almost unnecessary, and the maintenance becomes extremely easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a rice mill according to the present invention.

FIG. 2 is a perspective view showing the inside of the rice mill of FIG. 1;

FIG. 3 is a front view of the rice mill of FIG. 1;

FIG. 4 is a side view of the rice mill of FIG. 1;

FIG. 5 is a top view of the rice mill of FIG. 1;

FIG. 6 is a partially broken perspective view showing a main part of the rice mill of FIG. 1;

FIG. 7 is a perspective view showing a bran container.

FIG. 8 is a front sectional view of the bran container of FIG. 7;

FIG. 9 is a view showing an intake adjustment port provided on a side cover of the rice mill of FIG. 1;

FIG. 10 is a fragmentary sectional view for explaining the operation of the rice mill according to the present invention.

FIG. 11 is a view showing another example of the fan and the air duct in the rice mill of FIG. 1;

FIG. 12 is an exploded view showing a configuration of an example of a whiteness adjusting device in the rice mill of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rice polishing machine main body 2 hopper 4 hopper receiving port 1 e front cover 8 bran container 10 rice container 12 power switch 15 intake adjustment port 20 container storage room 22 motor storage room 24 partition plate 26 rice polishing shaft driving motor 27 rice polishing shaft driving motor Housing room 28 Blower fan drive motor 30 Blower duct 32 Blower fan 36 Rice sink guide 40 Rice milling shaft 42 Rice milling net 44 Bran removing plate 46 Bolt 50 Bran receiving opening 52 Opening 56 Filter 60 Whiteness adjusting knob 66 Resistance plate

Continuation of the front page (56) References JP-A-4-100549 (JP, A) JP-A-6-226120 (JP, A) JP-A-61-101254 (JP, A) Jpn. , Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B02B 1/00-7/02 109

Claims (4)

(57) [Claims] Claims: 1. A brown rice mill having a milling shaft and a milling net.
Rice milling part, and rice for storing the rice milled by the rice milling part
Container and rice milled by the rice milling unit and separated from brown rice
A bran container for storing bran, a fan for generating wind, and a fan
When the wind generated by
Blast that guides the wind that has passed through the rice mill into the bran container
And a duct, wherein the blower duct covers the rice milling section.
Both have their open ends extended to the entrance of the bran container,
The above milling shaft and the milling net constituting the milling unit are
The bran was forcibly separated from the rice after milling by applying the wind generated by the fan , and the separated bran passed through the milling section.
By the wind from the opening end along the air duct
The Rutotomoni style to accommodate the bran in the container only to the outside of the bran container
Relief, rice mill, characterized in that the rice after the rice section and polished rice and to prevent the temperature rise in the US due to frictional heat during rice milling by cooling by the wind. 2. The bran container is an open end of the air duct.
The rice is passed through the rice milling section
The wind containing bran sent along the wind duct
A first opening leading from the opening end of the bran container to the inside,
The wind guided inside the bran container escapes to the outside of the bran container
A second opening, and provided on the entire inner surface of the second opening.
Provided with a filter, and the bran container is provided by the filter.
Only the wind out of the wind containing bran guided inside
Release the bran to the outside and keep the bran inside the bran container
Rice mill according to claim 1, wherein the thing. 3. A casing for accommodating all the components.
The casing is further provided near the fan.
That the opening can be adjusted.
The rice mill according to claim 1 or 2 , wherein the rice mill is a rice mill. 4. The rice mill, the bran container and the fan.
A storage chamber for accommodating the ventilation duct;
An opening is provided near the fan in the wind duct,
Drain from the bran container through the rice milling section along the air duct.
The evacuated wind again flows through the opening of the ventilation duct
The air blown to the rice mill
It is characterized by being circulated in the storage room
The rice mill according to claim 1, 2, or 3 .