JP6383618B2 - Rice milling machine - Google Patents

Rice milling machine Download PDF

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JP6383618B2
JP6383618B2 JP2014187945A JP2014187945A JP6383618B2 JP 6383618 B2 JP6383618 B2 JP 6383618B2 JP 2014187945 A JP2014187945 A JP 2014187945A JP 2014187945 A JP2014187945 A JP 2014187945A JP 6383618 B2 JP6383618 B2 JP 6383618B2
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rice
friction
grinding
rice milling
milling
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JP2016059848A (en
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栄一 成川
栄一 成川
至博 里
至博 里
武雄 堀
武雄 堀
藤原 健二
健二 藤原
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株式会社タイワ精機
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本発明は、研削式精米部と摩擦式精米部を備える精米機に関する。   The present invention relates to a rice mill having a grinding-type rice milling unit and a friction-type rice milling unit.
玄米から糠を取り除くための精米方法には、金剛砂砥石などにより玄米の表面を削る研削式精米と、圧力をかけて玄米相互で粒々摩擦を作用させる摩擦式精米がある。従来、主に業務用の精米機において、研削式精米部と摩擦式精米部の両方を備え、研削式精米部で玄米の表面を削った後、摩擦式精米部で仕上げるものがあった。このような精米機によれば、研削式精米部を通すことで、摩擦式精米部の圧力を小さくできるので、高水分米や特定米穀(くず米)など、割れやすい米を精米する場合でも、砕粒の発生を抑えることができる。   There are two types of rice milling methods for removing rice bran from ground rice: grinding-type rice milling, which removes the surface of brown rice with a gold sand sandstone, etc., and friction-type rice milling, which applies friction to each other by applying pressure. Conventionally, there are some milling machines for commercial use that are equipped with both a grinding-type rice milling unit and a friction-type rice milling unit, and after grinding the surface of the brown rice with the grinding-type rice milling unit, finishing with the friction-type rice milling unit. According to such a rice milling machine, the pressure of the friction-type rice milling part can be reduced by passing through the grinding-type rice milling part, so even when milling rice that is easily broken, such as high-moisture rice or specific rice grains (waste rice) Can be suppressed.
一方、研削式精米部を通すと、玄米の表面に研削傷が生じてしまうため、割れにくい米を精米する場合には、摩擦式精米部のみで仕上げた方が、精米の仕上がり状態が向上する。そこで、特許文献1に示すような精米機が提案されている。この精米機は、上側に下送式(主軸の向きが垂直で、玄米が上から下に向けて流れるもの)の研削式精米部を、下側に同じく下送式の摩擦式精米部を配設し、さらに研削式精米部の上側に原料供給樋および切換弁を配設してあり、玄米を、研削式精米部を通してから摩擦式精米部に供給するか、研削式精米部を通さず摩擦式精米部に直接供給するかを切換自在となっている。使用者は、供給される玄米の性状を予め検査し、研削式精米部を通すか否かを決定して、切換弁を切り換える。   On the other hand, if the grinding-type rice milling part is passed, grinding scratches will occur on the surface of the brown rice, so when milling rice that is hard to break, finishing with only the friction-type rice milling part will improve the finished state of the milled rice . Therefore, a rice mill as shown in Patent Document 1 has been proposed. This rice milling machine has a grinding-type rice milling part on the upper side (the main shaft is vertical and brown rice flows from top to bottom), and a lower-feeding type friction-type rice milling part on the lower side. In addition, a raw material supply bowl and a switching valve are arranged on the upper side of the grinding-type rice milling section, and brown rice is fed to the friction-type rice milling section after passing through the grinding-type rice milling section, or is rubbed without passing through the grinding-type rice milling section. Whether to supply directly to the rice milling section can be switched. The user inspects the properties of the supplied brown rice in advance, determines whether or not to pass the grinding-type rice milling unit, and switches the switching valve.
特開2013−248600号公報JP 2013-248600 A
しかしながら、文献1の発明の研削式精米部および摩擦式精米部は、何れも主軸の向きが垂直な下送式のものであって、それぞれが高さ方向に大きく、これを上下に配設してあり、さらにその上側に原料供給樋および切換弁を配設したものであるから、装置全体として高さ方向に非常に大きく、設置場所が限られ、メンテナンス性が悪いという問題があった。   However, the grinding-type rice milling portion and the friction-type rice milling portion of the invention of Document 1 are both of a feed-down type in which the direction of the main shaft is vertical, and each is large in the height direction, and these are arranged vertically. Further, since the raw material supply basket and the switching valve are arranged on the upper side, there is a problem that the entire apparatus is very large in the height direction, the installation place is limited, and the maintainability is poor.
本発明は、上記事情を鑑みたものであり、研削式精米部と摩擦式精米部を有するものであって、装置全体の高さが低く、コンパクトな精米機を提供することを目的とする。   The present invention has been made in view of the above circumstances, and has an object of providing a compact rice mill having a grinding-type rice milling unit and a friction-type rice milling unit, and having a low overall height.
本発明のうち請求項1の発明は、傾斜型の研削式精米部と、傾斜型の摩擦式精米部と、水平移送式の供給装置を備え、摩擦式精米部の上側に研削式精米部を配設し、研削式精米部の上側に供給装置を配設してあり、研削式精米部は、主軸が前側に向けて下方に傾斜していて、後側に設けた研削部供給口と、前側に設けた研削部排出口と、研削部排出口に設けた研削部抵抗板を有しており、摩擦式精米部は、主軸が前側に向けて下方に傾斜していて、後側に設けた摩擦部供給口と、前側に設けた摩擦部排出口と、摩擦部排出口に設けた摩擦部抵抗板を有しており、研削部排出口が摩擦部供給口の略真上に位置していて相互に接続してあり、供給装置は、米を前後の任意の方向に移送可能なものであって、玄米供給口と、前側排出口と、後側排出口を有しており、後側排出口が研削部供給口の略真上に位置していて相互に接続してあり、前側排出口が摩擦部供給口の略真上に位置していて相互に接続してあり、供給装置の前端は摩擦式精米部の前端よりも後側に位置し、供給装置の後端は研削式精米部の後端よりも前側に位置し、米の経路について、研削式精米部を通してから摩擦式精米部を通すか、研削式精米部を通さずに摩擦式精米部のみを通すかを選択できることを特徴とする。
The invention according to claim 1 of the present invention includes an inclined grinding-type rice milling unit, an inclined friction-type rice milling unit, and a horizontal transfer type feeding device, and the grinding-type rice milling unit is provided above the friction-type rice milling unit. A feeding device is disposed on the upper side of the grinding-type rice milling unit, and the grinding-type rice milling unit has a main shaft inclined downward toward the front side, and a grinding unit supply port provided on the rear side; It has a grinding part discharge port provided on the front side and a grinding part resistance plate provided on the grinding part discharge port, and the friction-type rice milling part is provided on the rear side with the main shaft inclined downward toward the front side. The friction part supply port, the friction part discharge port provided on the front side, and the friction part resistance plate provided on the friction part discharge port are provided, and the grinding part discharge port is located substantially directly above the friction part supply port. Are connected to each other, and the feeding device is capable of transferring rice in any direction before and after, and supplies the brown rice supply port, front discharge port, and rear discharge The rear discharge port is located directly above the grinding part supply port and connected to each other, and the front discharge port is located substantially directly above the friction part supply port. The front end of the feeder is located behind the front end of the friction-type rice milling unit, the rear end of the feeding device is located ahead of the rear end of the grinding-type rice milling unit, and the rice path is ground. It is possible to select whether to pass the friction-type rice milling part after passing through the rice-type rice milling part, or to pass only the friction-type rice milling part without passing through the grinding-type rice milling part.
本発明のうち請求項の発明は、摩擦式精米部において初期精米が行われている間、摩擦式精米部への米の供給を停止するとともに、供給装置が停止することを特徴とする。
The invention of claim 2 among the present invention is characterized in that the supply of the rice to the friction-type rice milling unit is stopped and the supply device is stopped while the initial rice milling is being performed in the friction-type rice milling unit.
本発明のうち請求項1の発明によれば、研削式精米部と摩擦式精米部が、何れも傾斜型のものであるからそれぞれの高さが低く、また供給装置も、水平移送式のものであるから高さが低い。よって、これらを上下に並べて配設した装置全体も高さが低く、コンパクトである。そして、米の経路について、研削式精米部を通すか否かを選択できるので、米の性状に合わせた精米を行うことができる。   According to the invention of the first aspect of the present invention, since the grinding-type rice milling part and the friction-type rice milling part are both inclined, their heights are low, and the feeding device is of the horizontal transfer type. Therefore, the height is low. Therefore, the entire apparatus in which these are arranged side by side is also low in height and compact. And since it can select whether the grinding | polishing type rice milling part is passed about the path | route of rice, the rice milling match | combined with the property of rice can be performed.
本発明のうち請求項の発明によれば、初期精米が行われている間は、摩擦式精米部への米の供給が停止されるが、この際に供給装置が運転したままだと、摩擦式精米部の入口部に米がたまることになり、その分の容積を確保するために、装置が大型化してしまう。そこで、供給装置を停止することで、摩擦式精米部の入口部に米がたまることがなくなるので、装置をコンパクトにすることができる。
According to the invention of claim 2 of the present invention, while the initial rice milling is being performed, the rice supply to the friction-type rice milling unit is stopped. Rice accumulates at the entrance of the friction-type rice milling unit, and the apparatus becomes large in order to secure the corresponding volume. Therefore, by stopping the supply device, rice does not collect at the entrance of the friction-type rice milling unit, so the device can be made compact.
精米機の全体図である。1 is an overall view of a rice mill. 供給装置および研削式精米部の拡大図である。It is an enlarged view of a supply apparatus and a grinding-type rice mill part. 摩擦式精米部の拡大図である。It is an enlarged view of a friction type rice milling part. 精米機の動作の流れを示すフローチャートである。It is a flowchart which shows the flow of operation | movement of a rice mill.
本発明の精米機の具体的な構成について、各図面に基づいて説明する。図1に示すように、この精米機は、研削式精米部1と、摩擦式精米部2と、供給装置3を備え、これらを筐体5の内部に納めてあり、筐体5の前側面には、操作制御部6を設けてある。   A specific configuration of the rice milling machine of the present invention will be described with reference to the drawings. As shown in FIG. 1, this rice mill includes a grinding-type rice milling unit 1, a friction-type rice milling unit 2, and a supply device 3, which are housed inside a housing 5. Is provided with an operation control unit 6.
研削式精米部1は、図1および図2に示すように、略円筒形の研削部外筒15の中心軸に沿って主軸11を軸支してあり、主軸11が前側に向けて下方に傾斜するように配設してあって、主軸11の後側端には、研削部モータ20を接続してある。主軸11には、研削部外筒15内に納まるように、送穀ロール17と研削ロール18を外挿して取り付けてあり、研削ロール18の外周側部分が搗精室16となっている。送穀ロール17は、スクリュー状のものであり、研削ロール18は、砥石状のものであって、送穀ロール17の前側(下流側)に位置しており、何れも主軸11と一体となって回転する。また、研削ロール18の外周部には、筒状の除糠金網19を設けてある。そして、研削部外筒15の後部の上側面(送穀ロール17の上側部分)には、開口部を形成してあって、研削部供給口12としてあり、研削部外筒15の前部の下側面(研削ロール18の前端部の下側部分)にも、開口部を形成してあって、研削部排出口13としてある。さらに、研削部排出口13には、研削部抵抗板14を設けてある。研削部抵抗板14には、研削部抵抗装置7を取り付けてあり、研削部排出口13を開閉自在となっているとともに、その抵抗値を自在に設定できる。より詳しくは、研削部抵抗装置7は、研削部抵抗板14から前側に向けて延びる軸71と、軸71に取り付けた分銅72からなり、軸71は、後端部に主軸11と直交する向きの回転軸73を有する。分銅72は、軸71の前後方向に任意の位置に手動で移動可能であり、分銅72の位置が前側になるほど、回転軸73から離れてモーメントアームが長くなるので、研削部抵抗板14の抵抗値(研削部抵抗板14を研削部排出口13に押さえつける力の強さ)が大きくなる。   As shown in FIGS. 1 and 2, the grinding-type rice milling portion 1 supports a main shaft 11 along the central axis of a substantially cylindrical grinding portion outer cylinder 15, and the main shaft 11 is directed downward toward the front side. The grinding section motor 20 is connected to the rear end of the main shaft 11. A cerealing roll 17 and a grinding roll 18 are extrapolated and attached to the main shaft 11 so as to be accommodated in the grinding part outer cylinder 15, and an outer peripheral side portion of the grinding roll 18 serves as a polishing chamber 16. The cerealing roll 17 is of a screw shape, and the grinding roll 18 is of a grindstone shape, and is located on the front side (downstream side) of the cerealing roll 17, both of which are integrated with the main shaft 11. Rotate. A cylindrical wire mesh 19 is provided on the outer periphery of the grinding roll 18. An opening is formed on the upper side surface of the rear part of the grinding part outer cylinder 15 (upper part of the cerealing roll 17), serving as a grinding part supply port 12, and the front part of the grinding part outer cylinder 15. An opening is also formed in the lower side surface (the lower portion of the front end portion of the grinding roll 18), which serves as the grinding portion discharge port 13. Furthermore, the grinding part discharge port 13 is provided with a grinding part resistance plate 14. A grinding part resistance device 7 is attached to the grinding part resistance plate 14, and the grinding part discharge port 13 can be freely opened and closed, and its resistance value can be set freely. More specifically, the grinding portion resistance device 7 includes a shaft 71 extending from the grinding portion resistance plate 14 toward the front side and a weight 72 attached to the shaft 71, and the shaft 71 is oriented in a direction perpendicular to the main shaft 11 at the rear end portion. The rotation shaft 73 is provided. The weight 72 can be manually moved to an arbitrary position in the front-rear direction of the shaft 71, and the moment arm becomes longer away from the rotating shaft 73 as the position of the weight 72 becomes the front side, so that the resistance of the grinding portion resistance plate 14 is increased. The value (the strength of the force for pressing the grinding part resistance plate 14 against the grinding part discharge port 13) increases.
摩擦式精米部2は、図1および図3に示すように、略円筒形の摩擦部外筒25の中心軸に沿って主軸21を軸支してあり、主軸21が前側に向けて下方に傾斜するように配設してあって、主軸21の後側端には、摩擦部モータ30を接続してある。主軸21には、摩擦部外筒25内に納まるように、送穀ロール27と摩擦ロール28を外挿して取り付けてあり、摩擦ロール28の外周側部分が搗精室26となっている。送穀ロール27は、スクリュー状のものであり、摩擦ロール28は、送穀ロール27の前側(下流側)に位置しており、何れも主軸21と一体となって回転する。また、摩擦ロール28の外周部には、筒状の除糠金網29を設けてある。そして、摩擦部外筒25の後部の上側面(送穀ロール27の上側部分)には、開口部を形成してあって、摩擦部供給口22としてあり、摩擦部外筒25の前端面(摩擦ロール28の前端部の前側部分)にも、開口部を形成してあって、摩擦部排出口23としてある。さらに、摩擦部排出口23には、摩擦部抵抗板24を設けてある。摩擦部抵抗板24には、摩擦部抵抗装置8を取り付けてあり、摩擦部排出口23を開閉自在となっているとともに、その抵抗値を自在に設定できる。より詳しくは、摩擦部抵抗装置8は、摩擦部抵抗板24から上側に向けて延びるアーム81と、抵抗部モータ82と、抵抗部モータ82の軸に直結するネジ軸83と、ネジ軸83に螺合したナット体84を備える。アーム81は、上端部をネジ軸83が貫通しており、摩擦部抵抗板24とネジ軸83の中間位置に、主軸21と直交する向きの回転軸85を有する。そして、アーム81とナット体84の間には、ネジ軸83に外挿したスプリング86を設けてある。このように構成した摩擦部抵抗装置8において、抵抗部モータ82によりネジ軸83を回転させると、ナット体84が前後に移動する。ナット体84が前側に移動するほど、スプリング86が押し縮められるので、アーム81を介して取り付けた摩擦部抵抗板24の抵抗値(摩擦部抵抗板24を摩擦部排出口23に押さえつける力の強さ)が大きくなる。なお、摩擦部排出口23は、筐体5の外側に向けて開口しており、精米が終了した米を取り出すことができる。   As shown in FIGS. 1 and 3, the friction-type rice milling portion 2 supports the main shaft 21 along the central axis of the substantially cylindrical friction portion outer cylinder 25, and the main shaft 21 is directed downward toward the front side. The friction part motor 30 is connected to the rear end of the main shaft 21. A cerealing roll 27 and a friction roll 28 are extrapolated and attached to the main shaft 21 so as to be accommodated in the friction portion outer cylinder 25, and the outer peripheral side portion of the friction roll 28 is a scouring chamber 26. The cerealing roll 27 has a screw shape, and the friction roll 28 is positioned on the front side (downstream side) of the cerealing roll 27, and both rotate integrally with the main shaft 21. Further, a cylindrical wire mesh 29 is provided on the outer peripheral portion of the friction roll 28. An opening is formed in the upper side surface of the rear part of the friction part outer cylinder 25 (upper part of the cerealing roll 27), which serves as the friction part supply port 22, and the front end face of the friction part outer cylinder 25 ( An opening is also formed in the front end portion of the front end portion of the friction roll 28, and serves as a friction portion discharge port 23. Further, a friction part resistance plate 24 is provided at the friction part discharge port 23. A friction part resistance device 8 is attached to the friction part resistance plate 24, and the friction part discharge port 23 can be freely opened and closed, and its resistance value can be freely set. More specifically, the friction portion resistance device 8 includes an arm 81 extending upward from the friction portion resistance plate 24, a resistance portion motor 82, a screw shaft 83 directly connected to the shaft of the resistance portion motor 82, and a screw shaft 83. A nut body 84 that is screwed is provided. The arm 81 has a screw shaft 83 passing through its upper end, and has a rotation shaft 85 in a direction perpendicular to the main shaft 21 at an intermediate position between the friction resistance plate 24 and the screw shaft 83. Between the arm 81 and the nut body 84, a spring 86 that is externally attached to the screw shaft 83 is provided. In the frictional resistance device 8 configured as described above, when the screw shaft 83 is rotated by the resistance motor 82, the nut body 84 moves back and forth. The more the nut body 84 moves forward, the more the spring 86 is compressed, so the resistance value of the friction part resistance plate 24 attached via the arm 81 (the strength of the force that presses the friction part resistance plate 24 against the friction part discharge port 23 increases). ) Will increase. In addition, the friction part discharge port 23 is opened toward the outer side of the housing | casing 5, and can take out the rice which rice milling complete | finished.
供給装置3は、図1および図2に示すように、略円筒形の供給部外筒35の中心軸に沿って主軸36を軸支してあり、主軸36が前後方向(水平方向)を向くように配設してあって、主軸36の前側端には、供給部モータ37を接続してある。主軸36には、供給部外筒35内に納まるように、スクリュー体38を取り付けてある。そして、供給部外筒35の前後方向中央部の上側面には、開口部を形成してあって、玄米供給口31としてあり、供給部外筒35の前部および後部の下側面にも、開口部を形成してあって、それぞれ前側排出口32および後側排出口33としてある。また、玄米供給口31は、玄米の有無を検出する玄米検出器34を設けてある。この供給装置3によれば、主軸36(スクリュー体38)の回転方向を変えることにより、玄米供給口31から供給された玄米を、前後の任意の方向に移送することができる。また、主軸36の回転速度を変えることにより、米の供給量を調整できる。   As shown in FIGS. 1 and 2, the supply device 3 supports a main shaft 36 along the central axis of a substantially cylindrical supply portion outer cylinder 35, and the main shaft 36 faces in the front-rear direction (horizontal direction). A supply motor 37 is connected to the front end of the main shaft 36. A screw body 38 is attached to the main shaft 36 so as to be accommodated in the supply portion outer cylinder 35. And the opening part is formed in the upper side of the central part in the front-rear direction of the supply part outer cylinder 35, and it is used as the brown rice supply port 31, and the front part of the supply part outer cylinder 35 and the lower side of the rear part are also Openings are formed, which are the front discharge port 32 and the rear discharge port 33, respectively. The brown rice supply port 31 is provided with a brown rice detector 34 for detecting the presence or absence of brown rice. According to this supply device 3, by changing the rotation direction of the main shaft 36 (screw body 38), the brown rice supplied from the brown rice supply port 31 can be transferred in any direction before and after. Further, the supply amount of rice can be adjusted by changing the rotation speed of the main shaft 36.
そして、これらの研削式精米部1、摩擦式精米部2および供給装置3について、摩擦式精米部2の上側に研削式精米部1を配設し、研削式精米部1の上側に供給装置3を配設してあり、研削式精米部1の主軸11と、摩擦式精米部2の主軸21と、供給装置3の主軸36が、垂直面上に位置している。そして、研削式精米部1の研削部排出口13が、摩擦式精米部2の摩擦部供給口22の略真上に位置していて、相互に接続してある。また、供給装置3の後側排出口33が、研削式精米部1の研削部供給口12の略真上に位置していて、相互に接続してあり、供給装置3の前側排出口32が、摩擦式精米部2の摩擦部供給口22の略真上に位置していて、相互に接続してある。   And about these grinding-type rice milling part 1, the friction-type rice milling part 2, and the supply apparatus 3, the grinding-type rice milling part 1 is arrange | positioned above the friction-type rice milling part 2, and the supply apparatus 3 above the grinding-type rice milling part 1 The main shaft 11 of the grinding-type rice milling unit 1, the main shaft 21 of the friction-type rice milling unit 2, and the main shaft 36 of the supply device 3 are located on a vertical plane. And the grinding part discharge port 13 of the grinding-type rice milling part 1 is located substantially right above the friction part supply port 22 of the friction-type rice milling part 2, and is mutually connected. Further, the rear discharge port 33 of the supply device 3 is positioned substantially directly above the grinding unit supply port 12 of the grinding-type rice milling unit 1 and is connected to each other, and the front discharge port 32 of the supply device 3 is The friction-type rice milling part 2 is located substantially directly above the friction part supply port 22 and is connected to each other.
なお、摩擦式精米部2の摩擦部供給口22と、供給装置3の前側排出口32の間には、定量供給装置9およびホッパ10を設けてある。定量供給装置9は、図3に示すように、摩擦部供給口22の直上に設けてあって、等間隔で放射状に複数枚形成された繰出し羽根91を有し、繰出し羽根91は中心軸にモータを接続してあって一定方向に回転する。隣り合う二枚の繰出し羽根91の間には空間部が形成され、各空間部の容積は同じであるから、繰出し羽根91の回転数を計測して制御することで、下流側に任意の量の米を供給することができる。さらに、ホッパ10は、定量供給装置9の直上に設けてあって、下方に向けてすぼまる形状となっている。このホッパ10の上部に供給装置3の前側排出口32が接続されているとともに、研削式精米部1の研削部排出口13も、ホッパ10内に向けて開口している。よって、研削式精米部1を通って研削部排出口13から排出される米と、研削式精米部1を通らずに供給装置3の前側排出口32から排出される米は、何れもまずホッパ10にたまり、定量供給装置9によって、順次、摩擦式精米部2に供給される。なお、定量供給装置9を連続的に運転した場合の供給量は、供給装置3の供給量より多くなっているので、連続精米の際にホッパ10に米がたまらない。   In addition, between the friction part supply port 22 of the friction-type rice milling part 2 and the front side discharge port 32 of the supply apparatus 3, the fixed quantity supply apparatus 9 and the hopper 10 are provided. As shown in FIG. 3, the fixed-quantity supply device 9 is provided directly above the friction part supply port 22 and has a plurality of feed blades 91 formed radially at equal intervals. A motor is connected and it rotates in a certain direction. A space portion is formed between two adjacent feeding blades 91, and the volume of each space portion is the same. Therefore, by measuring and controlling the number of rotations of the feeding blade 91, an arbitrary amount is provided on the downstream side. Of rice can be supplied. Furthermore, the hopper 10 is provided immediately above the fixed amount supply device 9 and has a shape that sags downward. The front discharge port 32 of the supply device 3 is connected to the upper portion of the hopper 10, and the grinding unit discharge port 13 of the grinding-type rice milling unit 1 is also opened toward the hopper 10. Therefore, both the rice discharged from the grinding part discharge port 13 through the grinding-type rice milling unit 1 and the rice discharged from the front discharge port 32 of the supply device 3 without passing through the grinding-type rice polishing unit 1 are first hoppers. 10 and is sequentially supplied to the friction-type rice milling unit 2 by the quantitative supply device 9. In addition, since the supply amount at the time of operating the fixed supply device 9 continuously is larger than the supply amount of the supply device 3, the rice does not accumulate in the hopper 10 during the continuous rice polishing.
また、摩擦式精米部2の下側には、吸引装置4を設けてある。吸引装置4は、ファン41と、ファン41を回転させる吸引部モータ42からなり、研削式精米部1の搗精室16と、摩擦式精米部2の搗精室26の両方と連通している。さらに、吸引装置4は、筐体5の外部に連通しており、ファン41の回転によって両搗精室16,26から排出される糠を吸引し、筐体5の外部へ排出する。   In addition, a suction device 4 is provided below the friction-type rice milling unit 2. The suction device 4 includes a fan 41 and a suction unit motor 42 that rotates the fan 41, and communicates with both the milling chamber 16 of the grinding-type rice milling unit 1 and the milling chamber 26 of the friction-type rice milling unit 2. Further, the suction device 4 communicates with the outside of the housing 5, sucks the sputs discharged from the both sperm chambers 16 and 26 by the rotation of the fan 41, and discharges the spouts to the outside of the housing 5.
さらに、操作制御部6には、タッチパネル式の操作盤を設けてあり、精米機の運転および停止や、研削式精米部1を通すか否かの選択、摩擦式精米部2の摩擦部抵抗板24の抵抗値の設定などを行うことができる。   Further, the operation control unit 6 is provided with a touch panel type operation panel, and the operation and stop of the rice milling machine, the selection of whether or not to pass the grinding rice milling unit 1, the friction part resistance plate of the friction rice milling unit 2 For example, 24 resistance values can be set.
このように構成した本発明の精米機は、研削式精米部1と摩擦式精米部2が、何れも傾斜型のものであるからそれぞれの高さが低く、また供給装置3も、水平移送式のものであるから高さが低い。よって、これらを上下に並べて配設した装置全体も高さが低く、コンパクトであり、小規模な店舗などにも設置可能であって、メンテナンス性も良好である。そして、米の経路について、研削式精米部1を通すか否かを選択できるので、米の性状に合わせた精米を行うことができる。なお、研削式精米部1と摩擦式精米部2のそれぞれの主軸11,21の傾斜角度は、水平方向に対する角度が大きいほど、米を排出しやすいが、高さが高くなってしまうので、水平方向に対して40度以下であることが好ましく、20度〜30度が最も好ましい。   Since the grinding-type rice milling unit 1 and the friction-type rice milling unit 2 are both inclined, the height of each of the grinding rice milling machine of the present invention configured as described above is low, and the feeding device 3 is also of a horizontal transfer type. The height is low. Therefore, the entire apparatus in which these are arranged side by side is also low in height, is compact, can be installed in a small store, and has good maintainability. And since it can select whether the grinding | polishing type rice milling part 1 is passed about the path | route of rice, the rice milling match | combined with the property of rice can be performed. The inclination angles of the main spindles 11 and 21 of the grinding-type rice milling unit 1 and the friction-type rice milling unit 2 are more likely to discharge rice as the angle with respect to the horizontal direction is larger, but the height becomes higher. It is preferably 40 degrees or less with respect to the direction, and most preferably 20 degrees to 30 degrees.
次に、このように構成した精米機の動作について、図4のフローチャートに基づいて説明する。なお、この精米機によって行われる精米は、「初期精米」と、「連続精米」と、「終了精米」の三段階に分けられる。摩擦式精米部2においては、搗精室26内の米に圧力をかけて、米相互の粒々摩擦により精米が行われるが、先行する米がない精米の初期段階と、後続する米がない精米の終了段階においては、搗精室26内の米の充満率が低下して内部圧力が低くなり、十分な精米が行われない。そこで、精米を三段階に分けて、初期精米と終了精米においては、摩擦部抵抗板24の抵抗値を大きくして、十分な精米を行うものである。   Next, the operation of the rice mill configured as described above will be described based on the flowchart of FIG. Note that the rice milling performed by this rice milling machine is divided into three stages: “early milling”, “continuous milling”, and “finished milling”. In the friction-type rice mill 2, the rice in the milling chamber 26 is pressurized and the rice milling is performed by grain friction between the rice. The initial stage of the milled rice without the preceding rice and the milled rice without the following rice At the end stage, the filling rate of the rice in the milling chamber 26 is lowered, the internal pressure is lowered, and sufficient rice polishing is not performed. Therefore, the milled rice is divided into three stages, and in the initial milled rice and the finished milled rice, the resistance value of the friction part resistance plate 24 is increased to perform sufficient milled rice.
まず、使用者は、操作制御部6の操作盤を操作して、希望する精白度を設定する。精白度は、摩擦部抵抗板24の抵抗値により定まり、抵抗値を大きくすれば精白度が高くなり、抵抗値を小さくすれば精白度は低くなるものであって、玄米から糠を完全に除去する無洗米から、ほとんどの糠を残す一分搗き米まで、自在に設定できる。次に、使用者は、操作制御部6の操作盤を操作して、運転経路を設定する。これはすなわち、研削式精米部1を通すか否かの設定であり、ここでは、図2に示すように、研削式精米部1を通す場合を経路A、通さない場合を経路Bとする。使用者は、米の性状に応じて何れかの経路を選択するものであり、たとえば、高水分米、特定米穀(くず米)や、インディカ米などの長粒種の場合、割れやすいので、研削式精米部1を通す(経路Aを選択する)ことが望ましい。   First, the user operates the operation panel of the operation control unit 6 to set a desired whitening degree. The degree of milling is determined by the resistance value of the friction part resistance plate 24. If the resistance value is increased, the degree of milling increases, and if the resistance value is decreased, the degree of milling decreases. The rice bran is completely removed from the brown rice. From washing-free rice to one-minute rice that leaves most rice cakes, you can set it freely. Next, the user operates the operation panel of the operation control unit 6 to set the driving route. This is a setting of whether or not to pass the grinding-type rice milling portion 1, and here, as shown in FIG. The user selects one of the routes according to the properties of the rice. For example, in the case of high-grain rice such as high-moisture rice, specific rice grains (waste rice), and indica rice, it is easy to break. It is desirable to pass 1 (select route A).
なお、精白度の設定と、運転経路の設定は、どちらを先に行ってもよい。ここで、精白度を先に設定した場合において、摩擦部抵抗板24の抵抗値が所定の値より小さく、一分搗きから三分搗きまでの低分搗きに相当する場合、自動的に研削式精米部1を通さない経路Bが選択され、経路Aを選択することはできなくなっている。一方、運転経路を先に設定した場合において、研削式精米部1を通す経路Aを選択した場合、摩擦部抵抗板24の抵抗値を低分搗きに相当する所定の値より小さい値には設定できなくなっている。これは、低分搗きの精米において、研削式精米部1を通した後に摩擦式精米部2を通すと、摩擦部抵抗板24の抵抗がかかっていなくても、ある程度精米が進行してしまい、過搗精となってしまうので、低分搗きに設定した場合には、自動的に研削式精米部1を通さない経路Bを選択し、研削式精米部1を通す経路Aを選択した場合には、低分搗きにできないようにすることで、誤った操作を防ぎ、常に設定どおりの精白度の米が得られるようにしたものである。なお、低分搗きの精米では、摩擦部抵抗板24の抵抗値を小さくして、低圧力で精米するので、研削式精米部1を通さなくても、砕粒の発生は抑えられる。   Either the whiteness setting or the driving route setting may be performed first. Here, when the degree of whitening is set first, when the resistance value of the friction part resistance plate 24 is smaller than a predetermined value and corresponds to low division from 1 minute to 3 minutes, the grinding method is automatically performed. The route B that does not pass the milled rice portion 1 is selected, and the route A cannot be selected. On the other hand, when the operation route is set first and the route A through the grinding-type rice milling portion 1 is selected, the resistance value of the friction portion resistance plate 24 is set to a value smaller than a predetermined value corresponding to low division. I can't. This is because, in low-milled milled rice, if the friction type rice milling part 2 is passed after passing through the grinding type rice milling part 1, even if the resistance of the friction part resistance plate 24 is not applied, the rice milling proceeds to some extent. If it is set to low milling, the path B that does not pass the grinding-type rice milling part 1 is automatically selected and the path A that passes the grinding-type rice milling part 1 is selected. By making it impossible to squeeze it low, misoperation is prevented, and rice with a degree of milling that is always set can be obtained. In the case of low-milled rice, the resistance value of the friction part resistance plate 24 is reduced and the rice is polished at a low pressure, so that the generation of crushed particles can be suppressed without passing through the grinding-type rice milling unit 1.
これらの設定を終えたら、使用者は、供給装置3の玄米供給口31から、玄米を供給し、操作制御部6の操作盤を操作して、運転を開始する。すると、まず、摩擦部モータ30および吸引部モータ42が起動し、摩擦ロール28とファン41が回転する。また、摩擦部抵抗装置8の抵抗部モータ82が起動して、摩擦部抵抗板24の抵抗値を初期値に設定する。初期値は、初期精米において、未精白米を排出しないように摩擦式精米部2の摩擦部排出口23を塞ぐため、希望の精白度に基づく設定値よりも大きい値となっている。そして、玄米供給口31に設けた玄米検出器34が玄米を検出すると、経路A(研削式精米部1を通す経路)が選択されている場合、研削部モータ20が起動するとともに、供給部モータ37も起動して、供給装置3のスクリュー体38が玄米を後側へ移送する向きに回転する。この場合、研削部抵抗板14の抵抗値については、予め軸71に取り付けた分銅72の位置を調整しておく。玄米は、供給装置3の後側排出口33から研削式精米部1の研削部供給口12へと供給される。そして、送穀ロール17によって搗精室16に送られ、搗精室16を通過する際に、研削ロール18によって表面が削られる。研削式精米部1では、玄米から糠層の約5%〜30%を取り除き、取り除いた糠は、吸引装置4により吸引されて除糠金網19を通り抜け、筐体5の外部に排出される。一方、経路B(研削式精米部1を通さない経路)が選択されている場合、供給部モータ37が起動して、供給装置3のスクリュー体38が玄米を前側へ移送する向きに回転し、玄米は前側排出口32から排出される。何れの場合も、所定の時間(T1)が経過すると、供給装置3が停止する。摩擦式精米部2の摩擦部供給口22の直上に設けた定量供給装置9はまだ起動していないので、これまでに研削式精米部1の研削部排出口13(経路Aの場合)または供給装置3の前側排出口32(経路Bの場合)から排出された米は、ホッパ10にたまった状態となる。この米によって、摩擦式精米部2で初期精米が行われる。なお、初期精米が行われている間は、摩擦式精米部2への米の供給が停止されるが、この際に供給装置3が運転したままだと、ホッパ10に米がたまることになり、その分の容積を確保するために、装置が大型化してしまう。そこで、供給装置3を停止することで、ホッパ10に米がたまることがなくなるので、装置をコンパクトにすることができる。   When these settings are completed, the user supplies brown rice from the brown rice supply port 31 of the supply device 3, operates the operation panel of the operation control unit 6, and starts operation. Then, first, the friction part motor 30 and the suction part motor 42 are activated, and the friction roll 28 and the fan 41 are rotated. Moreover, the resistance part motor 82 of the friction part resistance apparatus 8 starts and sets the resistance value of the friction part resistance plate 24 to an initial value. The initial value is larger than the set value based on the desired degree of milling because the friction part discharge port 23 of the friction-type rice milling unit 2 is closed so that unmilled rice is not discharged in the initial milling. And when the brown rice detector 34 provided in the brown rice supply port 31 detects brown rice, when the path | route A (path | route which passes the grinding-type rice milling part 1) is selected, while the grinding | polishing part motor 20 starts, a supply part motor 37 is also activated, and the screw body 38 of the supply device 3 rotates in a direction to transfer the brown rice to the rear side. In this case, the position of the weight 72 attached to the shaft 71 in advance is adjusted for the resistance value of the grinding portion resistance plate 14. The brown rice is supplied from the rear discharge port 33 of the supply device 3 to the grinding unit supply port 12 of the grinding-type rice milling unit 1. And it is sent to the scouring chamber 16 by the cerealing roll 17, and the surface is shaved by the grinding roll 18 when passing through the scouring chamber 16. In the grinding-type rice milling unit 1, about 5% to 30% of the rice bran layer is removed from the brown rice, and the removed rice cake is sucked by the suction device 4, passes through the demetalization wire mesh 19, and is discharged to the outside of the housing 5. On the other hand, when the path B (path not passing through the grinding-type rice milling unit 1) is selected, the supply unit motor 37 is activated, and the screw body 38 of the supply device 3 rotates in a direction to transfer the brown rice to the front side. The brown rice is discharged from the front discharge port 32. In any case, when the predetermined time (T1) elapses, the supply device 3 stops. Since the fixed-quantity supply apparatus 9 provided immediately above the friction part supply port 22 of the friction-type rice milling part 2 has not been started yet, the grinding part discharge port 13 (in the case of the path A) or the supply of the grinding-type rice milling part 1 has been supplied so far. The rice discharged from the front discharge port 32 (in the case of the path B) of the apparatus 3 is accumulated in the hopper 10. With this rice, the initial rice milling is performed in the friction-type rice milling unit 2. In addition, while the initial rice milling is being performed, the supply of rice to the friction-type rice milling unit 2 is stopped, but if the supply device 3 is operated at this time, the rice is accumulated in the hopper 10. In order to secure the corresponding volume, the apparatus becomes large. Therefore, by stopping the supply device 3, rice does not accumulate in the hopper 10, so that the device can be made compact.
初期精米に際しては、まず、定量供給装置9が起動して、所定量の米を、摩擦部供給口22へ供給する。ここで、研削式精米部1を通さない場合(経路B)、供給されるのは玄米であるが、研削式精米部1を通す場合(経路A)、供給されるのは研削式精米部1においてある程度精米された米であり、玄米に比べて、容積重が低下している。容積重が低下すると、搗精室26内の圧力が低くなるので、玄米の場合と同じ米の取込量および同じ時間で精米を行うと、白度不足となってしまう。そこで、この精米機では、研削式精米部1を通す場合には、自動的に、初期精米における米の取込量を増やす。米の取込量は、定量供給装置9の繰出し羽根91の回転数を計測し、所定の回転数だけ回転させることで制御しており、取込量を増やすには、回転数を増加させればよい。これにより、研削式精米部1を通すか否かにかかわらず、均一な精白度の精白米が得られる。   At the time of initial rice polishing, first, the quantitative supply device 9 is activated to supply a predetermined amount of rice to the friction part supply port 22. Here, when the grinding-type rice milling part 1 is not passed (path B), it is brown rice that is supplied. However, when the grinding-type rice milling part 1 is passed (path A), the grinding-type rice milling part 1 is supplied. Rice, which has been polished to some extent, has a reduced bulk weight compared to brown rice. When the bulk weight is reduced, the pressure in the milling chamber 26 is lowered. Therefore, when rice is taken in the same amount of rice as in the case of brown rice and the same time, the whiteness becomes insufficient. Therefore, in this rice milling machine, when the grinding-type rice milling unit 1 is passed, the amount of rice taken up in the initial rice milling is automatically increased. The amount of rice taken in is controlled by measuring the number of revolutions of the feeding blade 91 of the fixed-quantity supply device 9 and rotating it by a predetermined number of revolutions. To increase the amount of intake, the number of revolutions can be increased. That's fine. Thereby, regardless of whether the grinding type rice milling part 1 is passed or not, milled rice having a uniform milling degree is obtained.
また、白度不足を補う別の方法として、研削式精米部1を通す場合には、自動的に、精米時間を延長することにしてもよい。なお、取込量を増やす方法と、精米時間を延長する方法の何れによっても、白度不足を防止することができるが、取込量を増やす方法の方が、精米時間に影響がない点が好ましい。しかしながら、必要となる米の増加分が、定量供給装置9の最小取込量(繰出し羽根91の間の空間部の容積)よりも少ない場合には、取込量の増加による調整が困難なので、精米時間を延長すればよい。   Further, as another method for compensating for the lack of whiteness, when the grinding-type rice milling unit 1 is passed, the rice milling time may be automatically extended. In addition, it is possible to prevent insufficient whiteness by either the method of increasing the amount of incorporation or the method of extending the rice milling time, but the method of increasing the amount of incorporation has no effect on the rice milling time. preferable. However, when the required increase in rice is smaller than the minimum intake amount (volume of the space between the feeding blades 91) of the quantitative supply device 9, adjustment by increasing the intake amount is difficult. You only need to extend the rice milling time.
このようにして取り込んだ米は、送穀ロール27によって搗精室26に送られ、搗精室26を通過する際に、米同士の粒々摩擦によって精米される。取り除いた糠は、吸引装置4により吸引されて除糠金網29を通り抜け、筐体5の外部に排出される。初期精米を開始してから所定の時間(T2)が経過すると、再度、定量供給装置9が起動して、米を追加供給する。これは、精米の進行に伴って糠が取り除かれ、容積重が低下して搗精室26内の圧力が低くなるので、これを補うためのものであり、当初の取込量の10%程度の米を追加するため、繰出し羽根91を所定の回転数だけ回転させて、停止する。その後、さらに所定の時間(T3)が経過すると、摩擦部抵抗装置8の抵抗部モータ82が起動して、摩擦部抵抗板24の抵抗値を、希望の精白度に基づく設定値(使用者が操作盤で設定した値)に設定し、抵抗部モータ82が停止して、初期精米が終了する。   The rice thus taken is sent to the milling chamber 26 by the cerealing roll 27, and when passing through the milling chamber 26, the rice is polished by grain friction between the rice. The removed soot is sucked by the suction device 4, passes through the stripping wire mesh 29, and is discharged to the outside of the housing 5. When a predetermined time (T2) has elapsed since the start of the initial rice milling, the quantitative supply device 9 is activated again to supply additional rice. This is to compensate for the removal of the koji with the progress of the milled rice, the bulk weight is reduced and the pressure in the kneading chamber 26 is lowered, which is about 10% of the initial intake amount. In order to add rice, the feeding blade 91 is rotated by a predetermined number of revolutions and stopped. Thereafter, when a predetermined time (T3) further elapses, the resistance unit motor 82 of the friction unit resistance device 8 is activated, and the resistance value of the friction unit resistance plate 24 is set to a set value (a user's The value is set to the value set on the operation panel), the resistance motor 82 is stopped, and the initial milling is completed.
続いて、定量供給装置9が起動するとともに、供給装置3も起動して、連続精米が行われる。経路Aが選択されていれば、玄米は供給装置3により後側に移送され、研削式精米部1を通ってから、定量供給装置9により摩擦式精米部2に供給され、摩擦部排出口23から精白米として排出される。一方、経路Bが選択されていれば、玄米は供給装置3により前側に移送され、研削式精米部1を通らずに、定量供給装置9により摩擦式精米部2に供給され、摩擦部排出口23から精白米として排出される。こうして順次精米が行われ、供給装置3の玄米供給口31に設けた玄米検出器34が、玄米がないことを検出すると、供給装置3内の残りの米がすべて排出されるのに十分な時間(T4)が経過した後、供給装置3が停止して、連続精米が終了する。   Then, while the fixed quantity supply apparatus 9 starts, the supply apparatus 3 also starts and continuous rice polishing is performed. If the path A is selected, the brown rice is transferred to the rear side by the supply device 3, passes through the grinding-type rice milling unit 1, and then is supplied to the friction-type rice milling unit 2 by the quantitative supply device 9. Is discharged as polished rice. On the other hand, if the path B is selected, the brown rice is transferred to the front side by the supply device 3 and is supplied to the friction-type rice milling unit 2 by the fixed-quantity supply device 9 without passing through the grinding-type rice milling unit 1. 23 is discharged as polished rice. In this way, rice milling is performed in sequence, and when the brown rice detector 34 provided at the brown rice supply port 31 of the supply device 3 detects that there is no brown rice, sufficient time is left for all the remaining rice in the supply device 3 to be discharged. After (T4) has elapsed, the supply device 3 is stopped and the continuous rice polishing is completed.
その後、終了精米に移行するが、経路A(研削式精米部1を通す経路)が選択されている場合、吸引装置4の吸引部モータ42が停止する。研削部モータ20はまだ運転中であり、吸引装置4が停止することで、吸引抵抗がなくなって、研削式精米部1から米が速やかに排出される。よって、研削式精米部1の搗精室16からすべての米が排出されるのに要する時間(T5)が短くて済み、その後の摩擦式精米部2における終了精米の時間を適正にとることができ、過搗精米や半搗き米の混入を防ぐことができる。そして、この時間(T5)が経過すると、研削部モータ20が停止し、吸引部モータ42が再起動する。さらに、研削式精米部1からすべての米が排出されることで、ホッパ10内に米がなくなるので、定量供給装置9が停止する。また、経路B(研削式精米部1を通さない経路)が選択されている場合、連続精米の終了後、定量供給装置9が停止する。そしていずれの場合も、摩擦部抵抗装置8の抵抗部モータ82が起動して、摩擦部抵抗板24の抵抗値を終了値に設定する。終了値は、終了精米において、未精白米を排出しないように摩擦式精米部2の摩擦部排出口23を塞ぐため、希望の精白度に基づく設定値よりも大きい値となっている。ここで、経路A(研削式精米部1を通す経路)が選択されている場合、研削式精米部1において米の表面が削られてある程度精米が進んだ状態となっているので、摩擦式精米部2において、研削式精米部1を通さない場合と同様の抵抗値と時間で終了精米を行うと、過搗精となってしまう。さらに、研削式精米部1からの米の排出時間(T5)があるため、摩擦式精米部2における終了精米の開始を遅らせる必要があるが、その分、実質的な終了精米の時間が長くなるため、過搗精となってしまう。そこで、この精米機では、研削式精米部1を通す場合には、自動的に、終了精米における摩擦部抵抗板24の抵抗値を小さくする(希望の精白度に基づく設定値よりは大きい値である)。これにより、研削式精米部1を通すか否かにかかわらず、均一な精白度の精白米が得られる。また、過搗精を防ぐ別の方法として、研削式精米部1を通す場合には、自動的に、精米時間を短縮することにしてもよい。そして、残りの米がすべて精米されるのに十分な時間(T6)が経過することで、終了精米が終了する。   Thereafter, the process proceeds to the finished rice milling, but when the path A (path through the grinding-type rice milling unit 1) is selected, the suction unit motor 42 of the suction device 4 stops. The grinding unit motor 20 is still in operation, and when the suction device 4 is stopped, the suction resistance is lost, and the rice is quickly discharged from the grinding-type rice milling unit 1. Therefore, the time (T5) required for all the rice to be discharged from the milling chamber 16 of the grinding-type rice milling unit 1 can be shortened, and the subsequent milling time in the friction-type rice milling unit 2 can be taken appropriately. , Can prevent the mixing of over-milled rice and half-milled rice. And when this time (T5) passes, the grinding part motor 20 will stop and the suction part motor 42 will restart. Furthermore, since all the rice is discharged from the grinding-type rice milling unit 1, there is no more rice in the hopper 10, so the fixed quantity supply device 9 stops. Moreover, when the path | route B (path | route which does not pass the grinding-type rice milling part 1) is selected, the fixed_quantity | feed_rate supply apparatus 9 stops after completion | finish of continuous rice polishing. In either case, the resistance part motor 82 of the friction part resistance device 8 is activated to set the resistance value of the friction part resistance plate 24 to the end value. The end value is larger than the set value based on the desired degree of milling because the friction part discharge port 23 of the friction-type rice milling unit 2 is closed so that unmilled rice is not discharged in the finished milled rice. Here, when the path A (path through the grinding-type rice milling portion 1) is selected, the grinding-type rice milling portion 1 is in a state where the surface of the rice has been cut and the rice milling has progressed to some extent. In the part 2, if the finished rice polishing is performed with the same resistance value and time as in the case where the grinding-type rice milling part 1 is not passed, excessive milling occurs. Furthermore, since there is a rice discharge time (T5) from the grinding-type rice milling part 1, it is necessary to delay the start of the finishing rice milling in the friction-type rice milling part 2, but the time for substantial finishing rice milling is increased accordingly. For this reason, it becomes excessive. Therefore, in this rice milling machine, when the grinding-type rice milling part 1 is passed, the resistance value of the friction part resistance plate 24 in the finished milling is automatically reduced (a value larger than the set value based on the desired milling degree). is there). Thereby, regardless of whether the grinding type rice milling part 1 is passed or not, milled rice having a uniform milling degree is obtained. Further, as another method for preventing excessive milling, when the grinding-type rice milling unit 1 is passed, the milling time may be automatically shortened. Then, when a sufficient time (T6) has passed for all the remaining rice to be polished, the finished polished rice ends.
その後、摩擦部抵抗装置8の抵抗部モータ82が起動し、摩擦部抵抗板24の抵抗値を「0」にして、抵抗部モータ82が停止する。これにより、摩擦部抵抗板24が開放状態となり、さらに吸引装置4の吸引部モータ42が停止することで、吸引抵抗がなくなって、摩擦式精米部2から米が速やかに排出される。摩擦式精米部2の搗精室26からすべての米が排出されるのに十分な時間(T7)が経過すると、摩擦部モータ30が停止する。そして、吸引部モータ42が再起動し、研削式精米部1や摩擦式精米部2から残った糠を吸引して、所定の時間(T8)が経過したら、吸引部モータ42が停止する。以上でこの精米機の運転が終了する。   Thereafter, the resistance part motor 82 of the friction part resistance device 8 is started, the resistance value of the friction part resistance plate 24 is set to “0”, and the resistance part motor 82 is stopped. Thereby, the friction part resistance plate 24 is opened, and the suction part motor 42 of the suction device 4 is stopped, so that the suction resistance disappears and the rice is quickly discharged from the friction-type rice milling part 2. When a sufficient time (T7) has passed for all the rice to be discharged from the milling chamber 26 of the friction-type rice milling unit 2, the friction unit motor 30 stops. Then, the suction unit motor 42 is restarted, the remaining rice cake is sucked from the grinding-type rice milling unit 1 and the friction-type rice milling unit 2, and when a predetermined time (T8) has elapsed, the suction unit motor 42 stops. This completes the operation of this rice mill.
なお、上記の実施形態において、研削部抵抗装置7は、軸71に取り付けた分銅72を手動で前後に移動させて研削部抵抗板14の抵抗値を設定するものであるが、これに、分銅72の位置を検出する検出器を設けてもよい。また、分銅72の位置をモータの動作で移動させるようにしてもよいし、摩擦部抵抗装置8と同様に、モータとスプリングを用いた構造としてもよい。そしてこれらの場合、研削部抵抗板14の抵抗値の検出も可能となるので、研削式精米部1を通す場合において、研削部抵抗板14の抵抗値に応じて、摩擦式精米部2の初期精米における米の取込量や精米時間を自動的に設定することができる。具体的には、研削式精米部1を通した米は、玄米に比べて、容積重が6%〜16%程度低下しており(研削部抵抗板14の抵抗値が大きいほど、容積重の低下率も大きくなる)、そのままでは摩擦式精米部2の搗精室26内の圧力が低くなって白度不足となるので、研削部抵抗板14の抵抗値が大きいほど、米の取込量を増やすか、精米時間を長くする。たとえば、研削式精米部1から排出される米の仕上がりが三分搗き程度の場合、容積重は約10%低下するため、摩擦式精米部2における米の取込量を、約10%増加させる。また、仕上がりが一分搗き程度の場合、容積重は約6%低下するため、摩擦式精米部2における米の取込量を、約6%増加させる。これにより、初期精米中の搗精室26内の圧力の低下を防ぎ、白度不足を防止する。なお、米の取込量を増加させる替わりに、精米時間を延長してもよい。特に、研削部抵抗板14の抵抗値が小さく、必要となる米の増加分が、定量供給装置9の最小取込量(繰出し羽根91の間の空間部の容積)よりも少ない場合には、取込量の増加による調整が困難なので、精米時間を延長すればよい。   In the above embodiment, the grinding part resistance device 7 manually sets the resistance value of the grinding part resistance plate 14 by manually moving the weight 72 attached to the shaft 71 back and forth. A detector for detecting the position 72 may be provided. Further, the position of the weight 72 may be moved by the operation of the motor, or a structure using a motor and a spring may be used similarly to the frictional part resistance device 8. In these cases, since the resistance value of the grinding part resistance plate 14 can be detected, the initial value of the friction-type rice milling part 2 is determined according to the resistance value of the grinding part resistance plate 14 when the grinding type rice milling part 1 is passed. It is possible to automatically set the amount of rice taken in the milled rice and the milling time. Specifically, rice that has passed through the grinding-type rice milling portion 1 has a reduced bulk weight of about 6% to 16% compared to the brown rice (the larger the resistance value of the grinding portion resistance plate 14, the larger the bulk weight). Since the pressure in the milling chamber 26 of the friction-type rice milling part 2 becomes low and the whiteness becomes insufficient as it is, the larger the resistance value of the grinding part resistance plate 14, the more the amount of rice taken up. Increase the rice milling time. For example, when the finish of the rice discharged from the grinding-type rice milling portion 1 is about 3 minutes, the bulk weight decreases by about 10%, so the amount of rice taken in the friction-type rice milling portion 2 is increased by about 10%. . When the finish is about 1 minute, the bulk weight decreases by about 6%, so that the amount of rice taken up in the friction-type rice milling section 2 is increased by about 6%. As a result, the pressure in the milling chamber 26 in the initial milled rice is prevented from decreasing and whiteness shortage is prevented. Instead of increasing the amount of rice taken up, the rice milling time may be extended. In particular, when the resistance value of the grinding part resistance plate 14 is small and the required increase in rice is smaller than the minimum intake amount (volume of the space part between the feeding blades 91) of the quantitative supply device 9, Since adjustment by increasing the amount of uptake is difficult, the rice milling time should be extended.
また、同様に終了精米においても、研削部抵抗板14の抵抗値に応じて、摩擦式精米部2における摩擦部抵抗板24の抵抗値や精米時間を自動的に設定することができる。具体的には、研削部抵抗板14の抵抗値が大きいほど、摩擦部抵抗板24の抵抗値を小さくするか、または精米時間を短くする。   Similarly, also in the finished rice milling, the resistance value and the rice milling time of the friction part resistance plate 24 in the friction type rice milling part 2 can be automatically set according to the resistance value of the grinding part resistance plate 14. Specifically, the resistance value of the friction part resistance plate 24 is reduced or the rice milling time is shortened as the resistance value of the grinding part resistance plate 14 is increased.
本発明は、上記の実施形態に限定されない。たとえば、研削式精米部や摩擦式精米部は、傾斜型で高さが低いものであれば、細部の構造などはどのようなものであってもよい。また、供給装置は、米を水平方向に移送可能なものであれば、どのようなものであってもよい。   The present invention is not limited to the above embodiment. For example, as long as the grinding-type rice milling unit and the friction-type rice milling unit are inclined and have a low height, any structure may be used. The supply device may be any device as long as it can transfer rice in the horizontal direction.
1 研削式精米部
2 摩擦式精米部
3 供給装置
4 吸引装置
11 主軸(研削式精米部)
12 研削部供給口
13 研削部排出口
14 研削部抵抗板
21 主軸(摩擦式精米部)
22 摩擦部供給口
23 摩擦部排出口
24 摩擦部抵抗板
31 玄米供給口
32 前側排出口
33 後側排出口
34 玄米検出器
DESCRIPTION OF SYMBOLS 1 Grinding-type rice milling part 2 Friction-type rice milling part 3 Feeding device 4 Suction device 11 Spindle (grinding-type rice milling part)
12 Grinding part supply port 13 Grinding part discharge port 14 Grinding part resistance plate 21 Spindle (friction-type rice milling part)
22 Friction part supply port 23 Friction part discharge port 24 Friction part resistance plate 31 Brown rice supply port 32 Front side discharge port 33 Rear side discharge port 34 Brown rice detector

Claims (2)

  1. 傾斜型の研削式精米部と、傾斜型の摩擦式精米部と、水平移送式の供給装置を備え、摩擦式精米部の上側に研削式精米部を配設し、研削式精米部の上側に供給装置を配設してあり、
    研削式精米部は、主軸が前側に向けて下方に傾斜していて、後側に設けた研削部供給口と、前側に設けた研削部排出口と、研削部排出口に設けた研削部抵抗板を有しており、摩擦式精米部は、主軸が前側に向けて下方に傾斜していて、後側に設けた摩擦部供給口と、前側に設けた摩擦部排出口と、摩擦部排出口に設けた摩擦部抵抗板を有しており、研削部排出口が摩擦部供給口の略真上に位置していて相互に接続してあり、
    供給装置は、米を前後の任意の方向に移送可能なものであって、玄米供給口と、前側排出口と、後側排出口を有しており、後側排出口が研削部供給口の略真上に位置していて相互に接続してあり、前側排出口が摩擦部供給口の略真上に位置していて相互に接続してあり、供給装置の前端は摩擦式精米部の前端よりも後側に位置し、供給装置の後端は研削式精米部の後端よりも前側に位置し、
    米の経路について、研削式精米部を通してから摩擦式精米部を通すか、研削式精米部を通さずに摩擦式精米部のみを通すかを選択できることを特徴とする精米機。
    Equipped with an inclined grinding rice milling unit, an inclined friction rice milling unit, and a horizontal transfer type feeding device. A grinding rice milling unit is arranged above the friction rice milling unit, and above the grinding rice milling unit. A supply device is provided,
    The grinding-type rice milling part has a spindle inclined downward toward the front side, a grinding part supply port provided on the rear side, a grinding part discharge port provided on the front side, and a grinding part resistance provided on the grinding part discharge port The friction type rice mill has a main shaft inclined downward toward the front side, a friction part supply port provided on the rear side, a friction part discharge port provided on the front side, and a friction part discharge It has a friction part resistance plate provided at the outlet, and the grinding part discharge port is located just above the friction part supply port and connected to each other,
    The supply device is capable of transferring rice in any direction before and after, and has a brown rice supply port, a front discharge port, and a rear discharge port, and the rear discharge port is a grinder supply port. It is located almost directly above and connected to each other, and the front discharge port is located almost directly above the friction part supply port and connected to each other. The front end of the feeder is the front end of the friction-type rice milling part. The rear end of the feeder is located in front of the rear end of the grinding-type rice milling part,
    The rice milling machine is characterized in that it can select whether to pass the friction-type rice milling part after passing through the grinding-type rice milling part, or to pass only the friction-type rice milling part without passing through the grinding-type rice milling part.
  2. 摩擦式精米部において初期精米が行われている間、摩擦式精米部への米の供給を停止するとともに、供給装置が停止することを特徴とする請求項1記載の精米機。2. The rice milling machine according to claim 1, wherein while the initial rice milling is performed in the friction-type rice milling unit, the supply of rice to the friction-type rice milling unit is stopped and the supply device is stopped.
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