JP2014180636A - Household rice milling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a household rice milling machine for obtaining wash-free rice, extremely excellent in bran removing performance, compared to a machine of washing rice in a dry manner by using a brush.SOLUTION: A household rice milling machine which includes a bran collecting container housed in a body, a rice milling container housed in the bran collecting container, a vertical shaft erected rotatably in a bottom center of the rice milling container, and a rice milling stirring shaft mounted on the vertical shaft and arranging a plurality of stirring projection pieces toward the rice milling container is so formed that rice grains in the rice milling container are stirred by the stirring projection pieces by the rotation of the rice milling stirring shaft when rice milling starts, and bran peeled by being pushed to a bran removing porous wall formed in the inner peripheral wall of the rice milling container leaks out from the bran removing porous wall and is collected in the bran collecting container. Furthermore, there are provided a humidification part for adding moisture to rice grains during rice milling in the rice milling container, and a control part for controlling the humidification part by determining an addition amount of moisture and a timing of addition according to a desired degree of grain polishing and a set value of an amount of milled rice.

Description

  The present invention relates to a domestic rice milling machine capable of easily milling brown rice for each necessary amount in a home kitchen or the like.

  Conventionally, various rice milling machines for home use have been proposed, for example, Patent Documents 1 and 2 of the present applicant. The domestic rice milling machine disclosed in Patent Literatures 1 and 2 detachably accommodates a mortar-shaped container having a porous wall for removing the debris and a collecting container surrounding the mortar-shaped container in a substantially cylindrical outer frame. The upper open portion is covered with a lid, and a vertical axis provided with a stirring protrusion is provided at the center of the bottom of the mortar-shaped container, and the vertical axis is driven below the outer frame. The drive means is built-in, the necessary amount of brown rice is put into the mortar-shaped container, the lid is put on, the switch is turned on to start the drive means, and the brown rice mortar by centrifugal force due to the rotation of the stirring protrusion Rice milling is carried out by throwing it into a shaped container and rubbing the grains of brown rice.

  Although the above-described household rice milling machine can produce the necessary amount of rice, it is in a state where rice cake is slightly attached to the surface of the rice, and it is necessary to wash the rice before cooking. However, this rice washing process is an important process that affects the taste of rice after cooking, but is also a very time-consuming process. In order to save labor in this process, there is a simple rice polishing machine that uses a brush to dry-grind rice (see, for example, Patent Document 3), but compared to those that use water to wash rice. There is a problem that the removal performance is inferior.

JP 2008-207148 A JP 2008-212879 A JP 2001-178636 A

  In view of the above problems, it is a technical object of the present invention to provide a domestic rice milling machine that can obtain washing-free rice with extremely excellent mash removal performance as compared with dry polishing using a brush. .

  In order to solve the above-mentioned problems, a first aspect of the present invention is a collecting container that is removably accommodated in a main body, a rice milling container that is accommodated in the collecting container, and a center of the bottom of the rice milling container. When the rice milling is started, it has a vertical axis that is erected and a stirring shaft for rice milling that is mounted on the vertical axis and radially arranges a plurality of stirring projection pieces toward the rice milling vessel. The rice grains in the milled rice vessel are stirred by the stirring projecting pieces by the rotation of the milling shaft for rice milling, and pressed against the porous wall for removal that is formed on the inner peripheral wall of the rice milling vessel, and are separated from the rice grains. Is a household rice mill formed so as to leak from the porous wall for degreasing and be collected in the collecting container, and a humidifying part for adding moisture to the rice grains in the polished rice in the polished rice container, and a desired The amount of water added and the amount Determining a grayed by providing a control unit for controlling the humidifying portion, it took technical means of.

  According to a second aspect of the present invention, in the first aspect of the present invention, when the degree of milling is set to white rice, the control unit sets the water addition timing 15 seconds before the end of milling. Is determined for 5 seconds from 10 seconds before to drive the humidifying unit.

  Furthermore, according to the invention of claim 3, in the invention of claim 1, when the degree of milling is set to germinated rice, the control unit sets the water addition timing from immediately after the start of rice milling to 5 seconds. Is determined for 5 seconds, and the humidifying unit is driven.

  And according to invention of Claim 4, the said control part sets the temperature of the water | moisture content added to a rice grain to the range of 50-55 degreeC.

  According to the invention of claim 5, the control unit sets the amount of water added to the rice grains in a range of 0.4 to 0.8% with respect to the weight of brown rice as a raw material. .

  According to the first aspect of the present invention, when rice milling is started, the rice grains in the rice milling vessel are stirred by the rotation of the milling shaft for rice milling, and are pressed against the inner peripheral wall of the rice milling container, while rolling. Is changed and evenly polished rice is made. Next, when a certain period of time has elapsed since the start of rice polishing (if the set value of the rice polishing is 1 go and 2 go, 115 seconds later, 3 go after 165 seconds, 4 go after 225 seconds, 5 go 285 seconds later), moisture is added from the humidifying part. When moisture is added, the soot adhering to the surface of the rice grains is softened, and the rice grains are agitated to produce a polishing action. That is, the rice grains are rubbed against each other and the koji is peeled off, and the surface of the rice grains is free of irregularities, white gloss is generated on the surface of the rice grains, and finishes with no-wash rice with extremely excellent koji removal performance. It can be done.

  According to the invention of claim 2 of the present invention, when the milling degree is set to white rice, the control unit sets the water addition timing from 15 seconds before the end of milling to 10 seconds before. Therefore, the load applied to the drive motor can be reduced as compared with the case of adding moisture at the early stage of rice polishing. In addition, the skin and seed coat that covers the surface of the brown rice is almost completely removed, and moisture is added when the paste layer that becomes the endosperm part is exposed. It can be done smoothly.

  Furthermore, according to the invention described in claim 3 of the present invention, when the degree of milling is set to germinated rice, the control unit determines the timing of adding the water to 5 seconds from immediately after the start of the milling to 5 seconds. However, since it drives the humidification part, there is a problem that the load applied to the drive motor is increased compared to adding moisture at the end of the milling process, but there is an effect that the milling action is suppressed, and at the tip of the rice grain Dropping of the located germ can be reduced and the germ survival rate can be increased.

  And according to invention of Claim 4 of this invention, since the said control part sets the temperature of the water | moisture content added to a rice grain in the range of 50-55 degreeC, the temperature rise by milled rice and water temperature are set. It is possible to reduce the occurrence of shell cracks due to temperature difference.

  Moreover, according to invention of Claim 5 of this invention, the said control part sets the addition amount of the water | moisture content added to a rice grain to the range of 0.4-0.8% with respect to the brown rice weight used as a raw material. Therefore, an appropriate amount of moisture is added to the weight of the brown rice used as a raw material, and an extremely good polishing action can be realized.

It is a perspective view showing the whole household rice mill of the present invention. It is a schematic longitudinal cross-sectional view which shows the internal structure of the rice milling machine. It is a block diagram which shows the structure of the control part of the rice milling machine. It is an external view of the operation panel of the rice milling machine. It is an exploded assembly figure which shows the internal component of the rice milling machine. It is the figure (Example 1) which compared the grain quality of the conventional technique and the technique of this invention. It is the figure (Example 2) which compared the grain quality of the conventional technique and the technique of this invention. It is the Example which improved the concentration part. It is the figure (Example 3) which compared the grain quality of what improved the gathering part, and the thing which improved.

  A mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the entirety of a domestic rice milling machine according to the present invention, and FIG. 2 is a schematic longitudinal sectional view showing the internal structure of the rice milling machine.

  As shown in FIG.1 and FIG.2, the domestic rice milling machine 1 is formed with the substantially rectangular parallelepiped resin housing | casing 2. As shown in FIG. In the housing 2, a drive motor 3 serving as a drive source disposed on the front side of the housing 2 and a rotational force from the drive motor 3 disposed on the bottom side of the housing 2 are provided. The power transmission unit 4 that transmits to the rotary shaft standing on the rear side of the rotary shaft and the rotational force transmitted from the rotary shaft to the milling portion disposed above the rotary shaft, or the rotational force is separated. Clutch portion 5 to be performed, rice milling portion 6 disposed above the clutch portion 5, humidifying portion 7 to spray water heated toward the inside of the rice milling portion 6, operation of the drive motor 3 and the humidifying portion 7 The main part is comprised from the control part 8 which controls this.

  An upper lid 10 that can be opened and closed by a hinge 9 is provided on an upper portion of the housing 2 of the household rice mill 1. Furthermore, a water tank 11 capable of storing water as a constituent member of the humidifying unit 7 is formed inside the upper lid 10. A cap 12 is attached to the upper surface of the upper lid 10 so as to cover the opening of the water tank 11. If the upper lid 10 is removed from the housing 2, the upper lid 10 does not go through a water injection container such as a kettle. It is possible to directly supply water to the water tank 11 by moving only to a water supply facility such as a kitchen. Moreover, the spray nozzle 13 and the electromagnetic valve 14 which are the main members of the humidification part 7 are attached to the bottom part of the water tank 11 via piping. In the water tank 11, a heater 15 for heating the water in the tank 11 and a temperature sensor 16 for detecting the water temperature are provided. Reference numeral 17 denotes a spray nozzle cover, which is provided with a slit 17a as a jet outlet.

  The clutch portion 5 includes a base portion 18 disposed in the housing 2, a rotating shaft 20 erected on the rear side of the base portion via a bearing 19, and a rotating pulley that is pivotally attached to a lower portion of the rotating shaft 20. 21 and one side 22 of the coupling joint formed at the upper part of the rotating shaft 20.

  The rice milling unit 6 includes an inner frame 24 placed on the base unit 18 via a vibration isolation pedestal 23, a collecting container 25 that is removably accommodated in the inner frame 24, and the collecting container 25, a mortar-shaped rice milling container 26 accommodated in the rice bran 25, a vertical axis 27 which is rotatably provided at the center of the bottom of the rice milling container 26, and a plurality of stirring protrusions 28 mounted on the vertical axis 27. Is formed from a stirring shaft 29 for milling rice arranged radially toward the rice milling container 25 and the other side 30 of the coupling joint provided at the lower portion of the longitudinal axis 27.

  The rice mill container 26 includes a substantially cylindrical upper opening, a lower cylindrical part or bottom having a diameter smaller than the upper opening, and an inclined cylinder that gradually expands from the lower cylindrical part or the bottom and connects to the upper opening. And a peripheral wall of at least the lower cylindrical portion of the rice milling vessel 26 is formed on the porous wall 26a for removal. And the lower peripheral wall part of this porous wall 26a for removing is formed in the cylindrical part whose internal diameter is smaller than the internal diameter of the upper end edge of the rice milling container 26. FIG. Moreover, the bottom part 26b of the rice polishing container 26 is non-porous, and the rice polishing container 26 can be fixed to the inner frame 24 by the fixing means 26c attached to the bottom part 26b.

  The drive motor 3 is attached to the front side of the base portion 18, and a motor pulley 31 is attached to the motor shaft 3a. The motor pulley 31 and the rotating pulley 21 are wound around a V belt or the like that serves as the power transmission unit 4. As a result, the rotational force of the drive motor 3 is transmitted to the rotary shaft 20 with a reduction ratio of 1: 3, for example. A rotation sensor (see FIG. 3) for detecting the rotation speed of the rotation shaft 20 is installed in the vicinity of the rotation shaft 20, and the rotation speed of the agitation shaft 29 for rice polishing is controlled according to the degree of rice polishing. It is good to have a configuration to do.

  Next, the configuration of the control unit 8 will be described with reference to FIG. The control unit 8 includes a power supply board 33, a CPU board 34, an I / O circuit 35, and the like. A safety switch 36 that turns on the power supply only when the upper lid 10 on the top of the housing 2 is closed and the drive motor 3 are connected to the power supply board 33. The drive motor 3 is further provided with a temperature sensor 37 for detecting the temperature rise of the motor, and a signal line of the temperature sensor 37 is provided on the power supply board 33 so that the power supply can be turned off before the drive motor 3 burns out. It is connected.

  The CPU board 34 is connected to a memory composed of a RAM 38 and a ROM 39, and in these memories, the rotational speed of the stirring shaft 29 for rice milling and the milling time according to the milling amount and the degree of milling, as well as the milling amount and milling. The amount of water and time from the humidifying unit 7 according to the degree are preset or programmed.

  Connected to the I / O circuit 35 are an operation panel 40, a rotation sensor 32, a heating heater 15, a temperature sensor 16, a spray nozzle 13, a solenoid valve 14, and a suction fan 41 for removal. 4 is an external view of the operation panel. As shown in FIG. 4, the operation panel 40 including a touch panel includes an operation start / stop switch 42, a whitening rice mode switch 43, and a whiteness setting switch 44. Each time the whiteness setting switch 44 is pressed, an LED display 45 for sequentially lighting and displaying “white rice”, “3 minutes”, “5 minutes”, “embryo” and “re-milled rice”, The amount setting switch 46 for setting the amount and the points “1 go”, “2 go”, “3 go”, “4 go” and “5 go” are sequentially lit each time the amount setting switch 46 is pressed once. An LED display unit 47 for displaying is provided.

  Next, when brown rice is used as a raw material for the rice milling operation of the household rice mill of the present invention will be described. First, the upper lid 10 attached to the upper part of the housing 2 is removed and moved to a water supply facility such as a kitchen. Then, the cap 12 of the upper lid 10 is removed and water is poured into the water tank 11. The required amount of water is about 3.0 [g] (= 3.0 [ml]) when the brown rice used as a raw material is about 1 go (158 [g]: 180 [ml] x 1 [go] x 0.88 [specific gravity]) , Brown rice is about 3 go (475 [g]: 180 [ml] x 3 [go] x 0.88 [specific gravity]), about 9.0 [g] (= 9.0 [ml]), brown rice is about 5 go (792 [g]: 180 [ml] × 5 [total] × 0.88 [specific gravity]), about 15.0 [g] (= 15.0 [ml]) is sufficient. This is because water that evaporates while the raw brown rice (for example, 14.0% of water) is milled is sprayed to obtain a refined product after milling, for example, the amount of water that finishes the water to 14.5%. Should be calculated in advance. However, it is preferable to fill the water tank 11 with a water amount that is almost full so as not to hinder the operation of the spray nozzle 13 and the electromagnetic valve 14 of the humidifying unit 7.

  When water injection into the water tank 11 is completed, the upper lid 10 is attached to the hinge 9 of the housing 2 and the collecting container 25 and the rice milling container 26 are accommodated in the inner frame 24 of the housing 2 (see FIG. 5). Next, the milling shaft 29 for rice polishing is fitted to the vertical axis 27 in the rice milling container 26. Then, a desired amount of brown rice is put into the milled rice vessel 26 and the upper lid 10 is closed. By performing this closing operation, the safety switch 36 is turned on, and the drive motor 3 can be activated.

  Next, after the amount setting switch 45 of the operation panel 40 is set to a desired value and the whiteness setting switch 43 is set to “white rice”, the whitening rice mode switch 42 and the operation start / stop switch 34 are turned on. For a few seconds before the rice milling is finished, the “whitening rice mode” will be started, which will spray the moisture to soften the scum adhering to the surface of the rice grain and complete the milling after the polishing of the rice grains. .

  Table 1 is a specification diagram showing control when the “whitening rice mode” is added and executed when the brown rice is refined into white rice. In Table 1, for example, when the amount setting is 1, the rice milling is performed at a rotational speed of 2200 rpm through the entire milling time of the milling time of 130 seconds. In the section from the start of rice milling to 115 seconds, normal rice milling is performed. In the section from the start of rice polishing to 115 seconds to 120 seconds (5 seconds), the rice milling is performed while spraying water, and then from 120 seconds to 130 seconds. The section up to the second (10 seconds) indicates that the polishing is performed without spraying moisture. In addition, when the amount setting is 5 go, of the total milling time of 300 seconds, in the section from the start of the milling to 50 seconds, the milling shaft 29 for milling is polished at a rotational speed of 2200 rpm, and from 50 to 300 seconds. The section shows that rice milling is performed at a rotational speed of 2200 rpm with the milling shaft 29 for rice milling. Then, during the period from 285 seconds to 290 seconds (5 seconds) from the start of the rice milling, the rice milling is performed while spraying moisture, and thereafter the section from 290 seconds to 300 seconds (10 seconds) is polished without spraying moisture. Which indicates that.

  Referring to FIG. 2, when rice milling is started, the rice grains in the rice milling container 26 are stirred by the stirring protrusions 28 and the inner peripheral wall of the rice milling container 26 by the rotation of the rice milling stirring shaft 29. Is pressed, and the posture is changed while rolling, and even rice milling is performed. Next, when a certain time has passed since the start of the rice polishing (115 seconds for 1 go and 2 go, 165 seconds for 3 go, 225 seconds for 4 go, 285 seconds for 5 go), the humidifying unit 7 Moisture is sprayed. That is, when a certain period of time elapses, the electromagnetic valve 14 and the spray nozzle 13 are operated, and water is sprayed from the nozzle 13 toward the rice grains in the rice milling container 26. At this time, the water temperature is set to 50 by the warming heater 15 in advance so as not to cause shell cracking due to the temperature difference between the temperature rise due to milled rice (for example, the rice temperature rises to 40-50 ° C. during grain milling during grain milling) and the water temperature. Hot water kept in the range of ˜55 ° C. will be sprayed. When the whiteness setting switch 43 is set to “white rice”, the amount of water sprayed is preferably 0.4 to 0.8%, more preferably 0.5 to 0.00%, based on the brown rice weight as a raw material. 7% is good. The spraying time is preferably limited to 5 seconds from 15 seconds to 10 seconds before the completion of the rice polishing.

  When moisture is sprayed as described above, the soot adhering to the surface of the rice grain is softened. And polishing is continued because rice polishing is continued until the completion of rice polishing and the rice grains are stirred. That is, the rice grains are rubbed against each other and the cocoons are peeled off, and the irregularities on the surface of the rice grains are eliminated, resulting in a gloss on the surface of the rice grains.

  Further, after setting the quantity setting switch 45 of the operation panel 40 to a desired value and setting the whiteness setting switch 43 to “germ rice”, when the whitening rice mode switch 42 and the operation start / stop switch 34 are turned on, the rice milling is performed. At the same time as the start, water is sprayed for a few minutes to soften the rice grain surface, and the germinated rice is refined and at the same time the “whitening rice mode” is started.

  Table 2 is a specification diagram showing the control when the “whitening rice mode” is added and executed when the brown rice is refined into germ rice. In Table 2, for example, when the amount setting is 1, the rice milling is performed at the rotational speed of 1650 rpm by the stirring shaft 29 for rice milling throughout the entire section of the total rice milling time of 180 seconds. Then, the rice milling is performed while spraying water up to 5 seconds simultaneously with the start of the rice polishing, and thereafter, the section from 5 seconds to 180 seconds (175 seconds) is polished without spraying water. In addition, when the amount setting is 5 go, out of the total milling time of 300 seconds, in the section from the start of milling to 60 seconds, the milling shaft 29 for milling is polished at a rotational speed of 2300 rpm, and from 60 seconds to 300 seconds. The section shows that the rice milling is performed at the rotational speed of 2450 rpm of the milling shaft 29 for rice milling. Then, the rice milling is performed while spraying water for 5 seconds simultaneously with the start of the rice polishing, and thereafter, the section from 5 seconds to 300 seconds (295 seconds) is polished without spraying water. In this way, unlike when white rice is polished to white rice, when brown rice is polished to germinated rice, it is polished by spraying water for 5 seconds at the same time as the start of rice polishing, rather than spraying water before the end of rice polishing. This makes it possible to increase the germ survival rate.

  If it demonstrates with reference to FIG. 2, water | moisture content is sprayed from the humidification part 7 for 5 second simultaneously with the start of rice polishing. That is, the solenoid valve 14 and the spray nozzle 13 are operated, and water is sprayed from the nozzle 13 toward the rice grains in the rice mill container 26. At this time, the hot water in which the water temperature is previously held in the range of 50 to 55 ° C. by the heating heater 15 is sprayed so as not to cause the body crack. When the whiteness setting switch 43 is set to “germ rice”, the amount of water sprayed is preferably 0.4 to 0.8%, more preferably 0.5 to 0, based on the weight of brown rice as a raw material. .7% is good. If the spraying time is limited to 5 seconds immediately after the start of the rice polishing, the remaining rate of germ can be increased.

  When moisture is sprayed as described above, the soot adhering to the surface of the rice grain is softened. Then, until the rice milling is finished (295 seconds), the rice milling is continued, and the rice grains are stirred to produce a polishing action. That is, the rice grains are rubbed against each other and the cocoons are peeled off, and the unevenness on the surface of the rice grains is eliminated, resulting in gloss.

[Comparison between conventional rice milling process and whitening rice mode added]
In order to compare the conventional rice milling process with the rice milling process when the whitening rice mode was added, the quality of the finished grain in each process was compared and examined (see FIG. 6). Kinuhikari produced in Hiroshima Prefecture in 2012 was used as a test sample. The whiteness of the raw brown rice was 20.6 and the water content was 13.7%. In addition, the moisture meter model PB1D made by Kett Science Laboratory Co., Ltd. is used for moisture measurement, and the brown rice / milled rice whiteness meter model C-300-3 is used for whiteness measurement. A grain scanner RSQI10A manufactured by Satake Co., Ltd. was used for the measurement of the number of cracked grains, the residual rate of germ and the broken rice rate.
As a result, when the whiteness increase value from the raw brown rice was compared, the whiteness increase value was 1.1 to 3.1 points higher with the addition of the whitening mode, and the gloss increased and the whiteness increased. I understand. On the other hand, when the number of shell crack grains is compared, it can be seen that the one with the whitening mode added has a higher shell crack ratio. This is probably because the internal structure of the rice grain is distorted by spraying water on the rice grain in the polished rice. However, it was found that when the amount set value is 3 go or higher, the cracking rate is comparable to that of the conventional rice milling process.

[Comparison between the conventional rice milling process of germinated rice and the addition of whitening rice mode]
In the same manner as described above, the conventional rice polishing process of germinated rice was compared with the rice polishing process when the whitening mode was added (see FIG. 7).
As a result, when the whiteness increase value from the raw brown rice is compared, it can be seen that the whiteness increase value is 0.6 to 1.2 points higher with the addition of the whitening mode, the gloss is increased and the whiteness is increased. . On the other hand, the number of cracked grains and the broken rice rate are almost the same, but the remaining rate of the germ is 0.5 to 3.7 points higher, and it is possible to leave the germ more effectively than the conventional rice polishing process. I understood.

[Improvement of concentration section]
FIG. 8 shows an embodiment in which the gathering portion is improved in order to suck the soot separated from the surface of the rice grain. The difference from the conventional domestic rice milling machine disclosed in Patent Documents 1 and 2 is that, in the conventional household rice milling machine, the rice milling action directs brown rice to the rice milling container 26 by the centrifugal force generated by the rotation of the stirring shaft 29 for rice milling. It is done by throwing out. As a result, the koji peeled from the brown rice leaks out from the porous wall 26a for removing the rice milling vessel 26 and is naturally dropped into the collecting vessel 25, thereby collecting the rice. Throwing and natural falling by such centrifugal force has a problem that the flaws are poor and the whiteness does not increase. On the other hand, in FIG. 8, an outside air intake port that communicates with the collection container 25 is formed on one side of the housing 2, and a soot collecting portion 49 is provided on the other side of the housing 2 via the suction fan 41. It is a configuration. The rice cake collection part 49 includes a rice cake receiving container 50 with a handle 50a for collecting the rice cake leaked from the porous wall 26a for removing the rice removal from the rice collection container 25, and a cyclone installed on the upper part of the rice cake receiving container 50. 51, a suction pipe 52 that communicates between the air outlet 51a of the cyclone 51 and the suction fan, and a communication pipe 53 that communicates between the collection container 25 and the basket receiving container 50. Composed. Inside the cyclone 51, a soot removal filter 54 is interposed in the vicinity of the air discharge port 51 a, and a cylindrical portion 55 is formed below the soot removal filter 54, below the cylindrical portion 55. In the upper opening of the receiving container 50, a tapered portion 56 that forms a downward swirling flow in combination with the cylindrical portion 55 is formed.

[Comparison between no suction and with suction]
FIG. 9 shows a result of comparison between when the whitening rice mode is executed (without suction) and when the collecting portion of FIG. 8 is driven (with suction).
Comparing the upper and lower tables in FIG. 9, it was found that the whiteness increase value is 1.6 points higher with suction and the whiteness increase is higher. However, the body cracking rate, the germ residue rate, and the broken rice rate increased, and these rice grain quality items gave bad results.

  The household rice milling machine of the present invention is not limited to the above embodiment, and various design changes are possible. For example, normal water is used to add water, but a healthy lactic acid bacteria-containing aqueous solution, a yeast-containing aqueous solution, an aqueous solution containing vitamin E, or a γ-aminobutyric acid-containing aqueous solution is selected. The finished refined product should be eaten at home as nourishing rice.

  As described above, the present invention includes a humidifying unit for adding water to the rice grains in the polished rice in the rice milling container, and controlling the humidifying unit to add water according to the desired milling degree and the set amount of the polished rice. And a control unit for determining the addition timing, water is added from the humidifying unit after a certain time has elapsed from the start of the rice milling, the rice cake surface is softened, and the rice grains are agitated to produce a polishing action, It is clear that the rice mill is a new and useful household rice mill that can be made into wash-free rice with extremely excellent mash removal performance.

  The present invention can be applied to an agitating household mill, as well as an agitating household rice mill.

DESCRIPTION OF SYMBOLS 1 Household rice mill 2 Case 3 Drive motor 4 Power transmission part 5 Clutch part 6 Rice milling part 7 Humidification part 8 Control part 9 Hinge 10 Upper lid 11 Water tank 12 Cap 13 Spray nozzle 14 Solenoid valve 15 Heating heater 16 Temperature sensor 17 Cover 18 Base portion 19 Bearing 20 Rotating shaft 21 Rotating pulley 22 One side of coupling joint 23 Anti-vibration pedestal 24 Inner frame 25 Collection container 26 Rice milling container 27 Vertical axis 28 Stirring protrusion 29 Milling shaft 30 Coupling joint 31 Motor pulley 32 Rotation sensor 33 Power supply board 34 CPU board 35 I / O circuit 36 Safety switch 37 Temperature sensor 38 RAM
39 ROM
40 Operation Panel 41 Suction Fan 42 Operation Start / Stop Switch 43 Whitening Rice Mode Switch 44 Whiteness Setting Switch 45 LED Display Unit 46 Quantity Setting Switch 47 LED Display Unit 48 Outside Air Intake Port 49 Soot Collection Portion 50 Saddle Receiving Container 51 Cyclone 52 Suction tube 53 Communication tube 54 Saddle removal filter 55 Cylindrical part 56 Taper part

Claims (7)

A collecting container accommodated in the main body so as to be removable, a rice milling container accommodated in the collecting container, a vertical axis rotatably provided at the center of the bottom of the rice milling container, and a shaft mounted on the vertical axis A plurality of stirring protrusions arranged radially toward the rice milling vessel, and when the rice milling is started, the rice grains in the rice milling vessel are rotated by the rotation of the rice milling stirring shaft. Is stirred by the stirring protrusion, and pressed against the porous wall for removal that is formed on the inner peripheral wall of the rice milling vessel, so that the cocoon released from the rice grains leaks out from the porous wall for removal and the collecting container A rice milling machine for household use,
A humidifying unit for adding water to the rice grains in the polished rice in the rice mill container, and a control unit for controlling the humidifying unit by determining the amount and timing of addition of water according to a desired whitening degree and a set value of the amount of polished rice A rice milling machine for home use.   When the milling degree is set to white rice, the control unit is configured to drive the humidification unit by determining the addition timing of the water to 5 seconds from 15 seconds immediately before the end of the rice polishing to 10 seconds before. Item 1. A rice mill for home use according to Item 1.   2. The household according to claim 1, wherein when the degree of whitening is set to germinated rice, the control unit determines the addition timing of the water to 5 seconds from immediately after the start of the rice polishing to 5 seconds to drive the humidifying unit. Rice milling machine. The said control part is a domestic rice milling machine in any one of Claims 1 thru | or 3 which sets the temperature of the water | moisture content added to a rice grain in the range of 50-55 degreeC.   5. The household use according to claim 1, wherein the control unit sets the amount of water added to the rice grain to a range of 0.4 to 0.8% with respect to the weight of brown rice as a raw material. Rice milling machine. The humidification unit warms the water in the water tank, a spray nozzle for adding water to the rice grains in the rice mill container, a solenoid valve for supplying water to the spray nozzle, a water tank for storing water, and the water tank. The domestic rice mill according to any one of claims 1 to 5, further comprising a heating heater.   The main body is provided with an outside air intake port that communicates with the collecting container, and the other side of the main body is provided with a straw collecting part via a suction fan, and the straw collecting part is provided with the rice milling container. A scissor receiving container with a handle for recovering soot leaking from the porous wall for removing the scissors, a cyclone installed on the top of the scissor receiving container, and a suction pipe communicating between the air discharge port of the cyclone and the suction fan A rice mill for home use according to claim 1 comprising:

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