JP2022021690A - Rice milling device for sake brewing - Google Patents

Abstract

To provide a rice milling device for sake brewing that allows anyone to easily manufacture milled rice having a milling shape required for sake brewing.SOLUTION: A rice milling device for sake brewing at least includes: a storage tank for storing rice grains; a milling part for receiving supply of rice grains from the storage tank and executing milling of rice grains by a polishing roll; and a grain lifting part for lifting the milled rice discharged from the milling part to the storage tank. The rice grains can be caused to pass through the milling part a plurality of times. The rice milling device for sake brewing includes a control part capable of selecting a predetermined milling shape from a plurality of kinds of milling shapes of the milled rice. The control part causes milling of rice grains in the milling part to be executed with the use of the polishing roll corresponding to the predetermined milling shape that has been selected.SELECTED DRAWING: Figure 1

Description

The present invention relates to a rice milling apparatus for sake brewing, which allows anyone to easily produce polished rice that is most suitable for sake brewing, such as original rice milling and flat rice milling, which are special rice milling processes.

Conventionally, as a method for processing rice suitable for sake brewing, original rice milling (a method of milling rice while keeping the shape like a rugby ball which is the shape of brown rice) and spherical rice (like a rugby ball which is the shape of brown rice) Known methods include milling rice into a spherical shape (a method of milling rice into a spherical shape) and flat rice (a method of milling rice from a rugby ball-like shape, which is the shape of brown rice, to a crushed shape like a hamburger) (see Patent Document 1). ..

Of the above-mentioned rice milling methods, spherical rice is generally used as the rice milling method for sake brewing. On the other hand, prototype rice milling and flat rice milling are not practical methods and are carried out in a very limited range.

Japanese Unexamined Patent Publication No. 2002-045128

That is, the conventional rice milling device is not such that anyone can easily obtain polished rice for sake brewing having a desired milling shape (original shape, flatness, spherical shape) and milling accuracy, and each milling shape. It was necessary to prepare a rice milling device according to the accuracy of rice milling and the like, and further, it was necessary to finely control the operation of the rice milling device each time the rice milling work was performed.

Therefore, an object to be solved by the present invention is to provide a rice milling apparatus for sake brewing, which allows anyone to easily produce polished rice necessary for sake brewing.

The invention according to claim 1 of the present application is a storage tank capable of storing rice grains, a whitening portion in which rice grains are supplied from the storage tank and milled by a grinding roll, and discharged from the whitening portion. It is a rice milling device for brewing that has at least a rice milling portion capable of transporting the polished rice to the storage tank and allows rice grains to pass through the milled portion multiple times, and is a plurality of types of polished rice. It has a control unit capable of selecting a predetermined refined shape from the refined shape, and the control unit causes the rice grains to be refined in the refined portion using the grinding roll corresponding to the selected predetermined refined shape. It is a rice milling device for sake brewing.

The invention according to claim 2 of the present application is the sake brewing according to claim 1, wherein the polished rice shape selectable in the control unit is at least two or more refined shapes among the original shape, flat shape, and spherical shape. It is a rice milling device.

The invention according to claim 3 of the present application has a quality inspection unit capable of detecting the accuracy of the polished rice discharged from the polished portion, and the control unit can set the accuracy of the polished rice. It is characterized in that it is provided with means and can supply the polished rice to the polished rice a plurality of times until the set accuracy is reached according to the detection result of the polishing accuracy of the polished rice in the quality inspection unit. The rice milling apparatus for sake brewing according to claim 1 or 2.

The invention according to claim 4 of the present application has a filling rate detecting unit capable of detecting the filling rate of rice grains in the polished portion, and the control unit can adjust the supply amount of rice grains to the polished portion. 3. The third aspect of the present invention is characterized in that the filling rate can be controlled based on the refined shape of the selected polished rice and the accuracy of the polished rice set by the accuracy setting means. It is a rice milling apparatus for sake brewing described in 1.

The invention according to claim 5 of the present application has a refined roll selection mechanism capable of selecting the grinding roll according to the selected refined shape of polished rice, and the refined roll selection mechanism is selected by the control unit. The rice milling apparatus for sake brewing according to any one of claims 1 to 4, wherein the grinding roll corresponding to the refined shape can be installed in the polished portion according to the shape.

The invention according to claim 6 of the present application has a refined roll selection mechanism capable of selecting the grinding roll according to the selected refined shape of polished rice, and the refined roll selection mechanism is selected by the control unit. The rice milling apparatus for sake brewing according to any one of claims 1 to 4, wherein rice grains can be supplied to the polished portion provided corresponding to the refined shape according to the shape. be.

According to the invention of claim 1, it has a control unit capable of selecting a predetermined refined shape from a plurality of types of polished rice, and the control unit corresponds to the selected predetermined refined shape. It is possible to grind rice grains using a grinding roll. That is, conventionally, it was necessary to prepare an apparatus configuration according to the shape of the refinement and perform fine operation control each time. However, according to the above configuration of the present invention, the operation manager of the rice milling apparatus for sake brewing can be used. It is possible to select a desired refined shape for the control unit, and further, it is possible to greatly reduce the time and effort required to make detailed settings for each refined shape.

According to the invention of claim 2, the polished rice shape that can be selected in the control unit is at least two or more of the original shape, the flat shape, and the spherical shape, so that the polished rice has a general spherical shape for sake brewing. Not limited to this, it is possible to select multiple types of refined shapes such as the original shape and flat shape.

According to the third aspect of the present invention, there is a quality inspection unit capable of detecting the accuracy of the polished rice discharged from the polished portion, and the control unit can set the accuracy of the polished rice. In addition, the polished rice is supplied to the polished portion a plurality of times until the set accuracy is reached according to the detection result of the quality inspection unit. With such a configuration, it is possible to significantly reduce the time and effort required for the operation manager or the like to check the accuracy of the polished rice discharged from the polished portion and to operate the rice milling apparatus for brewing.

According to the invention of claim 4, the control unit has a filling rate detecting unit capable of detecting the filling rate of rice grains in the milling portion, and the control unit can adjust the supply amount of rice grains to the milling portion. In addition, the filling rate in the polished portion is adjusted and controlled based on the selected shape and accuracy of the polished rice. With this configuration, the control unit automatically maintains an appropriate filling rate, so that the time and effort required for the operation manager to adjust the filling rate each time can be significantly reduced.

According to the invention of claim 5, it has a milling roll selection mechanism capable of installing a grinding roll corresponding to the milling shape in the milling portion according to the milling shape selected in the control unit. .. With this configuration, for example, as shown in FIG. 1, a spherical milling roll 28A, a prototype milling roll 28B, and a flat milling roll 28A are used by the grinding roll selection mechanism 7 according to the selected milling shape. Any one of the rolls 28C is automatically installed in the polishing portion 2, and anyone can easily obtain the polished rice having a desired refined shape.

According to the invention of claim 6, it is possible to supply rice grains to the refined portion provided corresponding to the refined shape according to the refined shape selected by the control unit. For example, as shown in FIG. 5, a plurality of polished rice cylinders 22 corresponding to the refined shape of the polished rice are provided, and the supply flow path of the rice grains is switched according to the selected refined shape, so that the refined shape of the desired polished rice is refined. It is possible to obtain white rice.

It is a schematic sectional drawing of the rice milling apparatus for sake brewing in one Embodiment of this invention. It is an enlarged sectional view of the rice milling apparatus for sake brewing in one Embodiment of this invention. It is a figure which shows the display mode of the operation display part in one Embodiment of this invention. In one embodiment of the present invention, it is a table which shows the control structure according to the refinement shape. It is a schematic front view of the rice milling apparatus for sake brewing in another embodiment of this invention.

Hereinafter, an embodiment of the rice milling apparatus for sake brewing of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing the overall configuration of the rice milling apparatus 1 for sake brewing according to the present embodiment. Further, FIG. 2 shows an enlarged cross-sectional view of the flow rate adjusting portion 4, the whitening portion 2, and the Mangoku portion 5 in the rice milling apparatus 1 for sake brewing.

As shown in FIG. 1, the rice milling device 1 for brewing in the present embodiment is a circulation type vertical rice milling device, and is mainly a whitening section 2, a storage tank 3, a flow rate adjusting section 4, a mangoku section 5, and a fried rice mill. It includes a grain unit 6, a grinding roll selection mechanism 7, and a control unit 8.

The polishing portion 2 is a portion that is installed on the polishing portion machine base 9 and refines rice grains by a grinding action. A flow rate adjusting unit 4 for adjusting the flow rate of rice grains supplied to the polishing unit 2 and a storage tank 3 are provided above the polishing unit 2. The storage tank 3 temporarily stores rice grains during the whitening work for the whitening circulation work.

The mangoku portion 5 is a portion that separates the rice grains and the bran while moving the rice grains refined by the polishing portion 2 downward, and the separated rice grains are the portions of the frying section 6 installed on the grain raising section machine stand 10. Transferred to the bottom. The fried grain unit 6 lifts the rice grains transferred from the mangoku section 5 to the top of the storage tank 3, and the fried rice grains are temporarily stored in the storage tank 3 and again via the flow rate adjusting unit 4. It is configured to circulate rice grains.

In the grinding roll selection mechanism 7 of the present embodiment, the grinding roll 28 can be installed in the polishing portion 2 without human intervention. Further, the grinding roll selection mechanism 7 can replace the grinding roll 28, and the spherical milling roll 28A, the prototype milling roll 28B, and the flat milling roll 28C, which will be described later, are based on the control instruction of the control unit 8. It is possible to install it in the whitening section 2.

The control unit 8 controls each unit of the rice brewing rice milling device 1 described above, and executes a series of rice milling operations based on the setting conditions and the like set in the control unit 8 by the operation manager or the like. That is, under the control of the control unit 8, the rice grains stored in the storage tank 3 are refined in the whitening unit 2 and then sent to the Mangoku unit 5. The rice grains separated from the bran in the winningnowing part 5 are fried by the fried grain part 6 to the input port of the storage tank 3. The rice grains repeat this circulation cycle to produce the desired sake rice.

Subsequently, FIG. 2 mainly shows an enlarged cross-sectional view of the whitening portion 2, the flow rate adjusting portion 4, and the Mangoku portion 5. A flow rate adjusting unit 4 for adjusting the flow rate of rice grains from the storage tank 3 to the whitening unit 2 is provided between the whitening unit 2 and the storage tank 3. The lower part of the storage tank 3 is formed in the shape of an inverted conical cylinder, and the lower part thereof is formed in a cylindrical valve cylinder 44. The flow rate adjusting unit 4 includes a valve body 41 formed in a substantially conical shape that can be raised and lowered inside the inverted conical cylinder.

One side of the valve lever 42 that controls the raising and lowering of the valve body 41 engages with the shaft portion 41a extending below the valve body 41, and the other side of the valve lever 42 projecting to the outside of the valve cylinder 44. Is rotatably engaged with the lower end of the electric jack 43 supported by the support arm 45. With such a configuration, the jack 43 is controlled by the control signal from the control unit 8, and the flow rate of the rice grains flowing into the polishing unit 2 is adjusted.

The polishing unit 2 includes a grinding assembly 21, a polishing cylinder 22, and a discharge gutter 23. The upper part of the whitening cylinder 22 is a receiving port 24 for rice grains, and the base thereof is fixed to the whitening part machine base 9. A part of the base is cut out to form a feeding port 25. The grinding assembly 21 includes a vertical shaft 26, a holding member 27, a grinding roll 28, and a roll cradle 29, and is assembled around the vertical shaft 26. The grinding roll 28, the holding member 27, and the roll pedestal 29 are all circular in a plan view, and have a boss with respect to the vertical shaft 26 in the center. The vertical shaft 26 is pivotally supported in the vertical direction with respect to the refinement machine base 9, is maintained in the thrust direction by two bearing mechanisms 30, and is rotatably supported in the radial direction.

A roll cradle 29 is fitted into the vertical shaft 26 and fixed to the vertical shaft 26 at the position of the boss 31. Then, the grinding roll 28 is loosely fitted to the vertical shaft 26 at the position of the boss 32 on the roll cradle 29. Further, a pressing member 27 is fitted into the vertical shaft 26 at the position of the boss 33 above the grinding roll 28. The lower edge of the pressing member 27 is in contact with the upper surface of the grinding roll 28, and is fixed to the upper end of the vertical shaft 26 by a fastening bolt 34 inserted from above the boss 33. With the above configuration, the grinding assembly 21 is attached to the milling machine base 9, and the grinding roll 28 is sandwiched and fixed between the roll pedestal 29 and the holding member 27 by the fastening bolt 34. Therefore, the grinding assembly 21 will rotate together with the vertical shaft 26.

A polishing chamber 35 is formed between the inner surface of the polishing cylinder 22 and the outer peripheral surface of the grinding roll 28, and the bottom thereof is closed by the outer peripheral portion 36 of the roll cradle 29. A passive pulley 37 is fixed to the lower end of the vertical shaft 26, and is connected to the drive pulley of the motor M so as to be interlocked with the V-belt. The feeding port 25 provided at the base of the polishing cylinder 22 is open to a discharge gutter 23 for guiding rice grains to the Mangoku portion 5, and a pressure adjusting valve 38 having an pneumatic structure is arranged in this opening. There is. The opening degree of the pressure adjusting valve 38 changes according to the rice grain pressure in the whitening chamber 35, and the whitening chamber 35, which will be described later, is filled according to the air pressure of the pressure adjusting valve 38 and the flow rate of the rice grains into the whitening cylinder 22. The rate is adjusted and controlled.

The grinding roll 28 is integrally formed by laminating a plurality of annular partial rolls on the upper and lower sides. Each partial roll in this embodiment is made of an aluminum alloy, and CBN abrasive grains are fixed to the outer peripheral surface of each partial roll by electrodeposition. With the conventional GC grindstone (firing grindstone), it was difficult to eliminate unevenness in millimeters and to calcin the grindstone into a perfect circle. Since is a machined product, the roll body is a perfect circle, and is suitable for milling rice while aligning it with the side surface of the rice grain facing the surface of the grinding roll 28. This makes it possible to particularly preferably perform original-form polishing and flat-polishing. When the motor M is driven, the vertical shaft 26 is driven via the passive pulley 37, and the grinding roll 28 is configured to rotate in the milling cylinder 22.

Rice grains are sent from the storage tank 3 to the whitening chamber 35 through the receiving port 24 into the whitening portion 2, and the rice grains are ground (polished) between the whitening cylinder 22 and the grinding roll 28. The rice grains that have passed through the whitening chamber 35 are received by the outer peripheral portion 36 of the roll cradle 29, and are eventually sent out from the feeding port 25 to the discharge gutter 23.

The mixture of rice grains and bran sent to the discharge gutter 23 is separated into rice grains and bran while flowing down the Mangoku part 5, and the separated rice grains are stored in a storage tank by the grain raising section 6 installed on the grain raising section machine stand 10. It is fried to the top of 3. The rice grains repeat this circulation cycle to produce the desired sake rice.

The control unit 8 in the present embodiment can perform various setting operations in the rice milling device 1 for brewing, and is based on the setting conditions by the operation manager, the quality state of the polished rice by the grain discriminator (not shown), and the like. , The rice milling device 1 for sake brewing is controlled. Further, as shown in FIG. 1, the control unit 8 has an operation display unit 80 capable of displaying various setting operations, quality, and the like. The operation display unit 80 is composed of a liquid crystal display having a touch panel. For example, FIG. 3 shows an example of a display mode of a setting operation screen in the operation display unit 80.

On the display screen of the operation display unit 80 shown in FIG. 3, a prototype rice milling icon 84, a flat rice milling icon 85, and a spherical rice milling icon 86, which can select a polished rice shape, are displayed. Then, the operation manager touches the desired type of refined shape with a finger to determine the refined shape, and the grinding roll selection mechanism 7 determines the spherical polishing roll 28A, the original polishing roll 28B, and the flat polishing roll 28C. One of them is configured to be automatically installed in the whitening portion 2.

Further, the operation display unit 80 can set the accuracy of the polished rice, and the accuracy display unit 87 is set by appropriately touching the accuracy DOWN icon 81 and the accuracy UP icon 82. It is configured to display the accuracy. Then, by touching the decision icon 83, the setting condition is confirmed, and the rice milling device 1 for brewing is configured to operate.

Subsequently, the control mode of the rice milling apparatus 1 for brewing in the present embodiment will be described with reference to the table shown in FIG.

As described above, in the present embodiment, three types of refined shapes shown in the figure can be selected based on the setting conditions by the operation manager, and the grinding roll is selected according to the set types of refined shapes. By the selection mechanism 7, any one of the spherical whitening roll 28A, the original whitening roll 28B, and the flat whitening roll 28C is installed in the whitening portion 2. The grain size of the roll abrasive grains of each grinding roll 28 is 40 mesh for the spherical whitening roll 28A, 60 mesh for the original whitening roll 28B, and 80 mesh for the flat whitening roll 28C. Further, according to each polishing shape, the current value corresponding to the polishing load, the rotation speed of the grinding roll 28, and the flow rate of the rice grains to the polishing chamber 35 are controlled as shown in the figure to have a desired polishing shape. It is possible to produce polished rice.

Further, as described above, in the present embodiment, it is possible to set a desired accuracy. By presetting the parameters as shown in FIG. 4 in the control unit 8, the current value corresponding to the polishing load, the rotation speed of the grinding roll 28, and the flow rate of rice grains to the polishing chamber 35 are finely adjusted and controlled. It is possible to produce polished rice having a desired accuracy. "80% milling" corresponds to 20% milling accuracy, "60% milling" corresponds to 40% milling precision, and "40% milling" corresponds to 60% milling precision. For example, flat rice with 60% milling precision. Is set on the operation display unit 80, the current value corresponding to the above-mentioned polishing load, the number of rotations of the grinding roll 28, and the flow rate of rice grains to the polishing chamber 35 are controlled as shown in FIG. 4, and the polishing chamber is controlled. The filling rate of rice grains in 35 is controlled to be 33 to 50%.

(Other embodiments)
The embodiment of the rice milling apparatus for sake brewing of the present invention has been described above. However, the present invention is not necessarily limited to the above-described embodiment, and includes, for example, the following modifications.

For example, in the above-described embodiment based on FIG. 1, the grinding roll selection mechanism 7 has a spherical whitening roll 28A, a prototype whitening roll 28B, and a flat whitening roll according to the refined shape of the polished rice selected in the control unit 8. Any one of 28C was configured to be installed in the whitening portion 2. However, the present invention is not necessarily limited to such an embodiment, and for example, as shown in FIG. 5, the rice milling apparatus 1 for brewing is provided with a plurality of milling cylinders 22 corresponding to the milled shape of the milled rice. It is also possible to configure it to.

That is, on the upper part of the whitening part machine base 9, the whitening cylinder 22 provided with the spherical whitening roll 28A, the whitening cylinder 22 provided with the original whitening roll 28B, and the whitening cylinder 22 provided with the flat whitening roll 28C are all included. It is also possible to arrange and configure the rice grains supplied from the flow rate adjusting unit 4 to be distributed by the rice grain distribution unit 70 according to the milling shape of the polished rice selected in the control unit 8. With this configuration, the rice milling device 1 for sake brewing itself becomes large, but it is simpler than the equipment configuration in which various grinding rolls are transported from the storage location and installed in the polishing cylinder 22. It becomes possible to change. In addition, the storage tank 3, the mangoku part 5, the fried grain part 6, and the like can be shared, and it becomes possible to efficiently produce polished rice having a desired refined shape while suppressing the equipment cost.

Further, in the above-described embodiment, the operation display unit 80 provided with the touch panel is installed on the side of the rice milling device 1 for sake brewing, but the present invention is not necessarily limited to such a form, and for example, remote control is performed in the operation room. It is also possible to do the operation and set the operation by the PC terminal.

Further, in the above-described embodiment, the desired sperm shape is selected from the three types of sperm shapes of spherical shape, original shape, and flat shape as the sperm shape. It is also possible to configure it to select at least two types of sperm shapes.

Although the embodiments of the present invention and some modifications thereof have been described above, the above-described embodiments of the present invention are for facilitating the understanding of the present invention and do not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention includes equivalents thereof. Further, it is possible to combine or omit the scope of claims and the components described in the specification within the range in which at least a part of the above-mentioned problems can be solved or the range in which at least a part of the effect is exhibited. ..

1 Rice milling device for brewing 2 Polishing part 3 Storage tank 4 Flow adjustment part 50,000 stone part 6 Grain-raising part 7 Grinding roll selection mechanism 8 Control unit 9 Polishing part Machine stand 21 Grinding assembly 22 Polishing cylinder 23 Discharge gutter 24 Receptacle 25 Feed port 25
26 Vertical shaft 27 Holding member 28 Grinding roll 28A Spherical whitening roll 28B Original shape whitening roll 28C Flat whitening roll 29 Roll cradle 30 Bearing mechanism 31 Boss 32 Boss 33 Boss 34 Fastening bolt 35 Polishing chamber 36 Outer peripheral part 37 Passive pulley 38 Pressure control valve 41 Valve body 41a Shaft 42 Valve lever 44 Valve cylinder 43 Jack 45 Support arm 80 Operation display 81 搗 Precision DOWN icon 82 搗 Precision UP icon 84 Prototype rice milling icon 83 Decision icon 85 Flat rice milling icon 86 Spherical rice milling icon 87 Precision display unit

Claims (6)

A storage tank capable of storing rice grains, a milled portion in which rice grains are supplied from the storage tank and milled by a grinding roll, and polished rice discharged from the refined portion are lifted into the storage tank. A rice milling apparatus for sake brewing, which has at least a fried grain portion that can be fed, and is capable of passing rice grains through the polished portion a plurality of times.
It has a control unit that can select a predetermined polished shape from multiple types of polished rice.
The control unit is a rice milling apparatus for brewing, which comprises using the grinding roll corresponding to the selected predetermined milling shape to mill rice grains in the milling portion. The rice milling apparatus for sake brewing according to claim 1, wherein the polished rice shape selectable in the control unit is at least two or more polished shapes among the original shape, flat shape, and spherical shape. It has a quality inspection unit that can detect the accuracy of the polished rice discharged from the polishing unit.
The control unit is provided with an accuracy setting means capable of setting the accuracy of the polished rice, and the accuracy is set a plurality of times according to the detection result of the accuracy of the polished rice by the quality inspection unit. The rice milling apparatus for sake brewing according to claim 1 or 2, wherein the polished rice can be supplied to the polished portion. It has a filling rate detection unit that can detect the filling rate of rice grains in the refined portion.
The control unit includes a supply amount adjusting means capable of adjusting the supply amount of rice grains to the polished part, and is based on the selected polished rice shape and the polished rice accuracy set by the polished rice accuracy setting means. The rice milling apparatus for sake brewing according to claim 3, wherein the filling rate can be controlled. It has a grinding roll selection mechanism that can select the grinding roll according to the polishing shape of the selected polished rice.
Claim 1 is characterized in that the grinding roll selection mechanism can install the grinding roll corresponding to the polishing shape in the polishing portion according to the polishing shape selected in the control unit. The rice milling apparatus for sake brewing according to any one of 4 to 4. It has a grinding roll selection mechanism that can select the grinding roll according to the polishing shape of the selected polished rice.
The claim is characterized in that the milling roll selection mechanism can supply rice grains to the refined portion provided corresponding to the refined shape according to the refined shape selected by the control unit. Item 4. The rice milling apparatus for sake brewing according to any one of Items 1 to 4.

Images