JPH08243416A - Rice polishing machine, and stone-removing rice-polishing machine - Google Patents

Abstract

PURPOSE: To polish continuously through the whole rice-polishing process and simplify a structure by setting a rotor with a refining roll in a rice polishing cylinder rotatably and rotating a rotor in a specified number of rotations. CONSTITUTION: A rice polishing machine 5 is connected processionally with the downstream side of a stone removing selector 3, and set with the inclination of approximately at least 10 deg. relative to the horizontal direction. A rice grain charging opening 35 is provided above the inclination, and a refining cylinder 43 with a number of very fine holes 41 and a rotor 53 are provided. A compression plate 39 energized by a spring 37 is provided on the inclined lower end of the refining cylinder 43. A refining roller 52 is set on the rotor 53, fitted in the refining cylinder 53 rotatably and connected integrally with a hull transfer roll 47. The grain transfer roll 47 side of the refining roll 52 is formed by inclining gradually in the same manner as the returning direction of the grin transfer roll 47, while a protruded line 51 is formed on a gentle inclination in the direction reverse to the returning direction. The rotor 53 is rotated in the number rotations of 1500 per minute or more.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、精米機とそれを用いた
石抜き精米機に関し、構造が極めて簡潔で、精米する米
の種類を装置を停止することなく変更できる精米機、お
よび石抜き精米機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice polishing machine and a stone removing rice polishing machine using the same, and has a very simple structure and can change the type of rice to be polished without stopping the device, and the stone removing machine. It concerns rice milling machines.

【０００２】[0002]

【従来の技術】従来の精米機は、減速装置や噴風除糠装
置が必要な為、構造が複雑で製造コストも高くついてい
た。すなわち従来の精米機の構造は、周面に多数の微小
孔を設けた精白筒を水平方向に設置し、その中で送穀ロ
ールと直線状の突条を設けた精白ロールからなる転子を
回転させ、米粒間の摩擦力によって糠を擦り落とし、発
生した糠を、中空の精白ロールからの噴風により精白筒
の微小孔群から外部に排出して除糠するものが一般的に
用いられている。なお、この従来の精米装置は比較的低
速で回転される。この理由は無効摩擦を避ける為であ
る。その為に、電動機の回転をプーリー減速して伝達し
ている。尤も転子径の小さい小型の精米装置では、電動
機を直結した高速回転タイプもあるが、大型になるほど
転子の周速が速くなるので無効摩擦が生じ、加えたエネ
ルギーの大半は米温を高めることに消費され、精白効率
は極めて低くなる。従って、小型の精米機を除いては低
速回転タイプである。また従来の米穀の精米工程は、大
小の混入異物の除去は勿論のこと、大まかには米粒群
中に混入している石等の異物を除去する工程と、精白
して除糠する工程の２つに大別できる。そして、混入異
物の除去については、一般的な篩による粒径選別や、石
抜きに代表される比重選別等の方法が取られている。こ
れらのうち、篩による選別については、改めて説明する
までもなく一般的に広く知られた方法であるので、以
下、比重による石抜き選別について説明する。2. Description of the Related Art A conventional rice milling machine has a complicated structure and a high manufacturing cost because it requires a speed reducer and a blast bran remover. That is, the structure of the conventional rice milling machine is such that a whitening cylinder having a large number of minute holes on its peripheral surface is installed in the horizontal direction, in which a trochanter consisting of a grain-feeding roll and a whitening roll provided with a linear ridge is provided. It is generally used by rotating and scraping off the bran by the frictional force between rice grains, and discharging the bran that has been generated by blowing air from a hollow whitening roll to the outside from the group of fine holes in the whitening cylinder. ing. In addition, this conventional rice polishing apparatus is rotated at a relatively low speed. The reason for this is to avoid ineffective friction. Therefore, the rotation of the electric motor is transmitted by decelerating the pulley. There is also a high-speed rotating type with a motor directly connected to a small rice milling device with a small trochanter diameter, but the larger the size, the faster the peripheral speed of the trochanter becomes, resulting in ineffective friction, and most of the added energy raises the rice temperature. Especially, the whitening efficiency is extremely low. Therefore, it is a low-speed rotation type except for a small rice mill. In the conventional rice grain polishing process of rice grains, of course, large and small foreign substances are removed, and roughly, the process of removing foreign substances such as stones mixed in the rice grain group and the process of whitening and bran removal are performed. It can be roughly divided into two. For removing foreign matter, methods such as particle size selection with a general sieve and specific gravity selection represented by stone removal are used. Of these, the screening using a sieve is a method that is generally widely known without needing to explain it again. Therefore, the destoning by specific gravity will be described below.

【０００３】比重選別を用いた石抜き選別装置は、投入
口から米粒群を供給すると、米粒は多孔板の下からの風
力によりあたかも表層雪崩のように傾斜の下方に流下し
て排出口より取り出され、一方の米粒中に含まれる石等
の異物については、その比重が米粒より大きいので風に
よって浮上せず、多孔板の斜め往復運動による突き上げ
によって多孔板の上方向へと搬送されて行き、最終的に
異物取り出し口より取り出される。In a stone removing and sorting apparatus using specific gravity sorting, when a rice grain group is supplied from an input port, the rice grain flows down from the discharge port as if it were a surface avalanche due to the wind force from under the perforated plate. As for foreign matter such as stones contained in one grain of rice, the specific gravity of the grain is larger than that of grain of rice, so that it does not float up by the wind and is conveyed upward by the upward movement of the perforated plate due to the diagonal reciprocating motion of the perforated plate. Finally, the foreign matter is taken out from the outlet.

【０００４】このように、比重選別によるこのような石
抜き工程は、一般に連続処理を前提としたものである。
すなわちこの石抜き工程では、処理する米種が例えばう
るち米からもち米に変わる時に、装置を止めることなく
うるち米が流れ終わるまで待ち、多孔板に残留したもの
を異物排出口から取り出してから、その後にもち米を流
せばよい。従って石抜き工程は、各品種の切り替え時に
装置を止める必要がなく段取り替えが不要であり、生産
管理的に言えば、各品種毎の段取り替えを必要としない
連続生産方式であると言える。ここで、一般に段取り替
えとは、「同一の工程で多数の品種を生産するとき、あ
る１つの品種から他の品種に切り替えるために必要な準
備作業」として定義されている。As described above, such a stone removing process by the specific gravity selection is generally premised on a continuous process.
That is, in this destoning process, when the type of rice to be processed changes from sticky rice to sticky rice, for example, wait until the sticky rice has finished flowing without stopping the device, remove the residue on the perforated plate from the foreign matter outlet, and then You only have to throw glutinous rice. Therefore, the stone removing process does not need to stop the device at the time of switching each product type and does not require setup change. From a production management standpoint, it can be said that it is a continuous production system that does not require setup change for each product type. Here, the setup change is generally defined as "preparation work necessary for switching from one type to another type when many types are produced in the same process".

【０００５】一方精米工程では、上述の石抜き工程とは
異なり、精白する米の品種が変わる際には、一旦転子の
回転を止め、精白筒の内部に残った精白済の米粒を掻き
出し等によって取り出してから、次品種の米粒群を投入
しなければならない。従って生産管理的に言えば、この
米粒の掻き出し作業は、米の品種を切り替えるために必
要な準備作業であって、段取り替えであると言える。こ
のため、従来の装置による精白工程はロット生産方式で
ある。On the other hand, in the rice polishing process, unlike the above-mentioned stone removing process, when the variety of rice to be whitened is changed, the rotation of the trochanter is stopped once and the whitened rice grains remaining inside the whitening cylinder are scraped out. The rice grain group of the next variety must be put in after taking out by. Therefore, in terms of production management, this rice grain scraping work is a preparation work necessary for switching rice varieties, and can be said to be a setup change. Therefore, the whitening process using the conventional apparatus is a lot production method.

【０００６】[0006]

【発明が解決しようとする課題】以上のように、精米工
程における主たる２つの工程は、上述したように石抜き
工程が連続処理を前提としたものであるのに対して、精
白工程がロット処理で行わざるを得ず、例え従来型の石
抜き選別装置と精米機を連結したとしても、両者を結合
した以上の効果は得られず、精米工程の全体を通して、
連続処理を行うことはできなかった。また構造も複雑で
あり、製造コストが高くついていた。As described above, the two main steps in the rice polishing process are based on the premise that the stone removing process is a continuous process as described above, whereas the whitening process is a lot process. Even if the conventional stone removing and sorting machine and the rice milling machine are connected together, the effect more than the combination of the two cannot be obtained.
Continuous processing could not be performed. In addition, the structure is complicated and the manufacturing cost is high.

【０００７】[0007]

【課題を解決するための手段】本発明は精米する米の種
類を、装置を停止することなく変更できる低コストの精
米機と、当該精米機を用いて精米工程における石等の混
入異物の除去と精白とを、対象となる米穀の品種が変わ
る場合でも装置を止めることなく連続的に行うことで、
精米工程の効率化を実現する石抜き精米機を提供するも
のである。このような本発明は、先ず精米機としては、
米穀投入側に送穀ロールが形成されるとともに、当該送
穀ロールに続いて一体的に送穀ロール側を送穀ロールと
捩じり方向が同じの緩傾斜に、また先端側を送穀ロール
と捩じり方向が反対の緩傾斜になるよう突条が形成され
た精白ロールが設けられた転子が、多数の微小孔が周面
に開口されるとともに先端を付勢力によって圧迫する圧
迫板が設けられた精白筒内に回転自在に装填され、前記
転子が毎分１５００回以上の回転数で回転されるもので
ある。The present invention is a low-cost rice milling machine that can change the type of rice to be milled without stopping the device, and the removal of foreign substances such as stones in the rice milling process using the rice milling machine. By continuously performing whitening and polishing without stopping the device even when the target rice grain variety changes,
The purpose of the present invention is to provide a stone removing rice polishing machine that realizes efficiency in the rice polishing process. First of all, the present invention is as follows.
A grain transfer roll is formed on the rice grain input side, and subsequently to the grain transfer roll, the grain transfer roll side is integrated with the grain transfer roll at a gentle inclination with the same twisting direction, and the tip side is the grain transfer roll. And a trochanter provided with a whitening roll having a ridge formed so that the twisting direction is opposite to that of the sloping direction, the trochanter has a large number of minute holes opened on the circumferential surface and presses the tip end by urging force. Is rotatably loaded into a white polishing cylinder provided with, and the trochanter is rotated at a rotation speed of 1500 times or more per minute.

【０００８】そして石抜き精米機としては、開口方向が
板面に対して斜め上下方向となる長孔が全面に開口さ
れ、かつ水平方向に対して前記長孔の開口方向と同一方
向の所定角度で傾斜させて設けられた多孔板と、当該多
孔板を水平方向に対してその傾斜角度よりも大きい角度
を有する斜め上下方向に往復振動させる駆動手段と、多
孔板の下方向から上方向に風を送通させるための送風手
段と、を備えた石抜き選別機と；石抜き選別機の下流側
または上流側に行程的に接続し、米穀投入側を傾斜上方
に位置付けかつ水平方向に対して所定の角度で傾斜させ
て設けられ、多数の微小孔が周面に開口されるとともに
傾斜下方端を付勢力によって圧迫する圧迫板が設けられ
た精白筒と、当該精白筒内に回転自在に装填され、米穀
投入側に送穀ロールが形成されるとともに、当該送穀ロ
ールに続いて一体的に送穀ロール側を送穀ロールと捩じ
り方向が同じの緩傾斜に、また先端側を送穀ロールと捩
じり方向が反対の緩傾斜になるよう突条が形成された精
白ロールが設けられた転子と、を備えた精米機と；を備
えたものである。ここで精米機または石抜き精米機とし
て、前記転子が電動機に直結された構成でもよい。In the destoning rice milling machine, a long hole whose opening direction is an obliquely vertical direction with respect to the plate surface is opened over the entire surface, and a predetermined angle in the same direction as the opening direction of the long hole with respect to the horizontal direction. The perforated plate inclined with respect to the horizontal direction, drive means for reciprocally vibrating the perforated plate in an oblique vertical direction having an angle larger than the inclination angle with respect to the horizontal direction, and the wind from the lower side to the upper side of the perforated plate. A destoning sorter provided with an air blowing means for communicating; a stepwise connection to a downstream side or an upstream side of the destoning sorter, with the rice grain input side being positioned above the slope and with respect to the horizontal direction. A white polishing cylinder provided with a tilt at a predetermined angle, a large number of minute holes opened in the peripheral surface, and a compression plate that presses the lower inclined end by a biasing force, and rotatably loaded in the white polishing cylinder. And the grain transfer roll to the rice grain input side Along with the grain transfer roll, the grain transfer roll side is integrated with the grain transfer roll in a gentle inclination with the same twisting direction, and the tip side is opposite to the grain transfer roll in the twisting direction. And a trochanter provided with a whitening roll in which a ridge is formed so as to have a gentle inclination, and a rice polishing machine provided with the trochanter. Here, as the rice milling machine or the stone removing rice milling machine, the trochanter may be directly connected to the electric motor.

【０００９】[0009]

【作用】以下、上記石抜き精米機が上流側にある場合の
作用について説明する。前述の石抜き選別機に、石等の
異物が混入している米粒群を投入すると、多孔板の振動
と風によって石等の異物が選別除去され、異物が選別除
去された米穀群のみが多孔板の傾斜下方端から精米機の
投入口に連続的に流下する。そしてこの流下した米粒群
は、精米機の精白筒の内部において、転子の回転力によ
って米粒同士が互いに擦れ合いながら、表面の糠層が除
去されていく。そして取り除かれた糠は遠心力により精
白筒の周面に開設した微小孔から吐出され、除糠された
米粒は、付勢力に抗して圧迫板を押し開け、精白筒の傾
斜下方端から流出する。この互いに擦れ合う際の加圧力
は、傾斜下方端に設けられた圧迫板の付勢力に抗する送
穀ロールの移送力によって得られ、また擦れ合わすため
の回転運動は、精白ロールの突条によって付与される。
ここで従来の精米機では、転子の回転数をあまり高くす
ると米粒間に効果的な摩擦作用が働かず、米粒の表層が
高速で擦れ合うのみ（以下、この現象をから滑りと称す
ることにする）にとどまる結果、発熱ロスが発生して効
果的な精米作用が得られないことになる。しかしなが
ら、本発明の上記構成における精白ロールの突条は、送
穀ロール側が捩じり方向が同一の緩傾斜に、先端側が送
穀ロールとは反対の捩じり方向の緩傾斜に突条が形成さ
れているので、送穀ロールによって移送されようとする
米粒を、中程に押し戻そうとする力が働く。これによ
り、精白筒内の米粒群には効果的な加圧力が働き、転子
の回転軸を毎分１５００回転以上の回転数にしてもよ
く、従って電動機に直結して高速回転を行っても、上記
のようなから滑り現象が発生しない。[Operation] The operation when the stone removing rice mill is on the upstream side will be described below. When the rice grain group containing foreign substances such as stones is put into the stone removing sorter described above, the foreign substances such as stones are selectively removed by the vibration and the wind of the perforated plate, and only the rice grain groups from which the foreign substances are selectively removed are porous. Continuously flow down from the lower inclined end of the plate to the input port of the rice mill. Then, in the rice grains that have flowed down, the rice bran layer on the surface is removed while the rice grains rub against each other due to the rotational force of the trochanter inside the white polishing cylinder of the rice polishing machine. Then, the removed bran is discharged by the centrifugal force from the minute holes opened on the peripheral surface of the whitening cylinder, and the rice grain removed is pushed out of the compression plate against the biasing force and flows out from the lower inclined end of the whitening cylinder. To do. The pressing force at the time of rubbing against each other is obtained by the transfer force of the grain transfer roll against the urging force of the compression plate provided at the inclined lower end, and the rotational movement for rubbing is imparted by the protrusion of the whitening roll. To be done.
Here, in the conventional rice milling machine, if the rotation speed of the trochanter is too high, an effective friction action does not work between the rice grains, and only the surface layers of the rice grains rub at high speed (hereinafter, this phenomenon is referred to as slipping). As a result, heat loss occurs and effective rice polishing action cannot be obtained. However, the ridge of the whitening roll in the above configuration of the present invention has a gentle slope in the twisting direction on the grain transfer roll side, and a ridge on the gentle slope in the twisting direction opposite to the grain transfer roll at the tip side. Since it has been formed, a force acts to push back the rice grains to be transferred by the grain transfer roll to the middle. As a result, an effective pressing force is exerted on the rice grains in the polishing cylinder, and the rotation axis of the trochanter may be set to 1500 rpm or more. Therefore, even if it is directly connected to the electric motor for high speed rotation. The slip phenomenon does not occur because of the above.

【００１０】このようにして除糠された米粒は、上述の
ように順次圧迫板を押し開けて精白筒の傾斜下方端から
連続的に流出していく。そして、精米処理する米の品種
が変わる場合には、石抜き選別機への米粒群の供給を一
定時間（以下これを供給インターバルと称す）停止し、
必要に応じて多孔板上の残留米を除去し、全ての米粒が
精白筒から流出するのを待って、別の品種の米粒群を投
入すればよい。なおこの時には、本装置を停止する必要
はない。そして、例えば精白筒からの流出米粒の受け容
器の交換時間に相当する最低限の供給インターバルさえ
取っておけば、全ての米粒が精白筒から流出するのを待
つまでもなく、石抜き選別機に次の別品種の米粒群の投
入を開始することも可能であり、装置を停止することな
く、種類の異なった米粒を連続的に処理することができ
る。従って、品種が変わる際の準備作業、すなわち段取
り替えを必要とせず、石抜きから精米完了までの精米工
程全体が連続生産方式となる。それは本発明では、転子
が高速で回転するのと、精白筒が傾斜しているのとが相
まって、精米工程が完了した時に運転を続けながら圧迫
板を開いてやれば、精白筒の残留米が排出してしまい、
次ロットの米と混じることはないからである。The rice grains that have been debranched in this way continuously flow out from the lower inclined end of the white polishing cylinder by sequentially opening the compression plates as described above. When the type of rice to be processed for rice polishing changes, the supply of rice grain groups to the stone removing sorter is stopped for a certain period of time (hereinafter referred to as the supply interval),
If necessary, residual rice on the perforated plate may be removed, and after waiting for all the rice grains to flow out from the whitening cylinder, a rice grain group of another variety may be added. At this time, it is not necessary to stop this device. And, for example, if you leave a minimum supply interval corresponding to the replacement time of the receiving container for the rice grains flowing out from the polishing cylinder, you can use the stone removing sorter without waiting until all the rice grains flow out from the polishing cylinder. It is also possible to start the introduction of the next rice varieties of different varieties, and the rice varieties of different types can be continuously processed without stopping the apparatus. Therefore, the preparatory work for changing the variety, that is, the setup change is not required, and the entire rice-polishing process from stone removal to completion of rice-polishing is a continuous production system. In the present invention, in combination with the fact that the trochanter rotates at a high speed and the whitening cylinder is tilted, if the compression plate is opened while continuing the operation when the rice polishing process is completed, the remaining rice in the whitening cylinder Is discharged,
This is because it will not mix with the next lot of rice.

【００１１】以上に説明した作用により、本発明の精米
機は転子が高速回転しているので、精白筒を傾斜状態で
設置することにより、転子の回転を停止することなく、
異なる種類の米を連続して流すことができる。また、こ
の精米機を用いた石抜き精米機でも、上記精米機と同
様、転子の電動機直結と相まって、極めて簡単な構造
で、高速かつ連続的な精米処理が可能となり、従来の石
抜き選別装置と精米機の単なる結合以上の作用がもたら
される。According to the operation described above, since the trochanter rotates at a high speed in the rice polishing machine of the present invention, it is possible to install the whitening cylinder in an inclined state without stopping the rotation of the trochanter.
Different kinds of rice can be washed continuously. In addition, the stone removing rice mill using this rice milling machine, like the above-mentioned rice milling machine, has a very simple structure that enables high-speed and continuous rice milling processing, coupled with the direct connection of the trochanter's electric motor. This brings more than just the combination of the device and the rice polishing machine.

【００１２】[0012]

【実施例】以下、図１および図２に示す実施例図面によ
り、本発明の詳細について説明する。図１の正面図およ
び図２の側面図にそれぞれ示すように、本発明の石抜き
精米機１は、上流側に石抜き選別機３が、そしてその下
流側には精米機５が、また精米機５からの吐出物を吸引
しながら当該吐出物を所定の部位に排出する吐き出し用
送風手段７が設けられ、これら３つが一つの筐体８内に
収容されるとともに、筐体８の上部適所には玄米等の精
米前の米粒群の投入口９が、筐体８の正面適所には精白
米の取り出し口１１が、また側面の適所には石等の異物
取り出し口１３がそれぞれ設けられている。石抜き選別
機３は、バネ板（図示せず）によって振動自在に支持さ
れた筐体１７内に、開口方向が板面に対して斜め上下方
向となる長孔１５が全面に開口され、かつ水平方向に対
して前記長孔１５の開口方向と同一方向の所定角度で傾
斜させた多孔板１９と、前記バネ板の支持によって当該
多孔板１９を筐体１７とともに水平方向に対してその傾
斜角度よりも大きい角度を有する斜め上下方向に往復振
動させる駆動手段２１と、多孔板１９の下方向から上方
向に風を送通させるための送風手段２３とを備えたもの
である。駆動手段２１は、電動機２５とカム軸プーリー
２７を備え、両者がベルト２９等の伝達手段によって連
結されている。カム軸プーリー２７にはカム３１が設け
られ、このカム３１のカムフォロワ３３が前記筐体１７
に連結されている。一方、送風手段２３については、一
般的なファンが使用され、前記ベルト２９等の伝達手段
によって連結され、一台の電動機２５によって筐体１７
の往復振動と送風の為の動力が賄われている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings of the embodiments shown in FIGS. As shown in the front view of FIG. 1 and the side view of FIG. 2, the stone removing rice mill 1 of the present invention has a stone removing sorter 3 on the upstream side, and a rice milling machine 5 on the downstream side, and a rice polishing machine. Exhaust blower means 7 for discharging the discharged matter from the machine 5 to a predetermined portion while sucking the discharged matter is provided, and these three are housed in one housing 8 and an appropriate place above the housing 8 Is provided with an inlet 9 for rice grains such as brown rice before milling, an outlet 11 for polished rice at a proper position on the front of the housing 8, and a foreign substance outlet 13 such as stones at a proper position on the side. There is. In the stone removing and sorting machine 3, a long hole 15 whose opening direction is an obliquely upward and downward direction with respect to the plate surface is opened on the entire surface in a housing 17 which is vibratably supported by a spring plate (not shown), and A perforated plate 19 which is inclined at a predetermined angle in the same direction as the opening direction of the elongated hole 15 with respect to the horizontal direction, and the perforated plate 19 together with the housing 17 supported by the spring plate with respect to the horizontal direction. The driving means 21 for reciprocally oscillating in an obliquely vertical direction having a larger angle than the above, and the blowing means 23 for blowing the air from the lower side to the upper side of the perforated plate 19 are provided. The drive means 21 includes an electric motor 25 and a cam shaft pulley 27, which are connected by a transmission means such as a belt 29. A cam 31 is provided on the cam shaft pulley 27, and a cam follower 33 of the cam 31 is provided on the housing 17.
It is connected to. On the other hand, as the air blowing means 23, a general fan is used, which is connected by the transmission means such as the belt 29, and the housing 17 is connected by one electric motor 25.
The power for the reciprocating vibration and the blowing of air is covered.

【００１３】また精米機５については、上記石抜き選別
機３の下流側に行程的に接続し、水平方向に対して１０
°以上の所定の角度で傾斜させて設けられている。この
精米機５は、米穀投入口３５が傾斜上方に位置付けて設
けられ、多数の微小孔４１が周面に開口されるとともに
傾斜下方端をバネ３７等による付勢力によって圧迫する
圧迫板３９が設けられた精白筒４３と、当該精白筒４３
内に回転自在に装填され、米穀投入口３５の側に送穀ロ
ール４７が形成されるとともに、当該送穀ロール４７に
続いて一体的に送穀ロール４７側を送穀ロール４７と捩
じり方向が同じの緩傾斜に、また先端側を送穀ロール４
７と捩じり方向が反対の緩傾斜になるよう突条５１が形
成された精白ロール５２が設けられた転子５３とを備え
ている。そして糠の吐き出し用送風手段７が併設され、
この精白筒４３の周囲には吐き出し用送風手段７につな
がるダクト５９が設けられ、精白筒４３の周面から吐出
される糠が回収される。The rice milling machine 5 is connected to the downstream side of the stone removing and sorting machine 3 in a stepwise manner, and is 10
It is provided so as to be inclined at a predetermined angle of not less than °. The rice milling machine 5 is provided with the rice grain inlet 35 positioned above the slope, a large number of minute holes 41 are opened in the peripheral surface, and a compression plate 39 that compresses the sloped lower end by the biasing force of the spring 37 or the like is provided. The white polishing cylinder 43 and the white polishing cylinder 43
It is rotatably loaded inside and the grain transfer roll 47 is formed on the rice grain input port 35 side, and the grain transfer roll 47 side is twisted integrally with the grain transfer roll 47 following the grain transfer roll 47. Gradient roll 4 with the same direction and gentle slope
7 and a trochanter 53 provided with a whitening roll 52 having a ridge 51 formed so that the twisting direction is opposite to the gentle inclination. And the blower means 7 for spiting out the bran is installed side by side,
A duct 59 connected to the blow-off blower 7 is provided around the polishing tube 43, and the bran discharged from the peripheral surface of the polishing tube 43 is collected.

【００１４】吐き出し用送風手段７は、前記ダクト５９
を通して除去された糠を回収して本装置１の外部に風送
するものであり、ダクト５９に連続した筐体６１内にフ
ァン６３が設けられるとともに、ファン６３の下流側に
は、本装置１の外部に設けた糠回収用の回収筒６５との
間を連結する糠ダクト６７が接続されている。このファ
ン６３の駆動も、前述の電動機２５によって賄われてい
る。The blow-off blower means 7 is provided with the duct 59.
The bran removed through the device is collected and blown to the outside of the device 1. A fan 63 is provided in a housing 61 continuous with the duct 59, and the device 1 is provided downstream of the fan 63. A bran duct 67 is connected to a collecting cylinder 65 for collecting bran provided outside the container. The drive of the fan 63 is also covered by the electric motor 25 described above.

【００１５】このような構成の石抜き精米機１における
米粒群の流れについて説明する。先ず電動機２５を回転
させると、ベルト２９によって連結された送風ファン２
３が回転し、多孔板１９の下方から上方に風が送通する
とともに、同じベルト２９を介して連結されたカム軸プ
ーリー２７の回転によって、多孔板１９が設置されてい
る筐体１７全体が矢印Ａ方向に斜め往復振動する。これ
と同時に、吐き出し用送風手段７のファン６３も回転す
る。さらに精白手段５の電動機５５も回転させておく。
この状態で投入口９から米粒群を石抜き選別機３の多孔
板１９上に流下させると、上述したように、米粒は軽い
ので長孔１５を斜上する風を受けて浮上する一方、長孔
１５は多孔板１９の上方向に向いて開口しているので、
米粒を上方向に搬送しようとする力が働く。しかし、多
孔板１９は傾斜状態で設置されているため、米粒を下方
向への重力に抗して搬送することになり、その結果とし
て両作用が均衡し、米粒群はおよそその場で停止する。
ここで投入口９からは、新たに米粒が供給され続けるの
で、あたかも表層雪崩のように傾斜の下方に米粒は流下
し、排出口１０より取り出される。一方、米粒中に含ま
れる石等の異物については、その比重が米粒より大きい
ので長孔１５を斜上する風によって浮上せず、多孔板１
９の斜め往復運動による突き上げによって多孔板１９の
上方向へと搬送されて行き、最終的に異物取り出し口１
３より取り出される。The flow of rice grain groups in the stone removing rice mill 1 having such a configuration will be described. First, when the electric motor 25 is rotated, the blower fan 2 connected by the belt 29.
3 rotates, air is sent from below the perforated plate 19 to above, and the rotation of the cam shaft pulley 27 connected via the same belt 29 causes the entire housing 17 in which the perforated plate 19 is installed. It vibrates diagonally in the direction of arrow A. At the same time, the fan 63 of the blowing means 7 for discharging also rotates. Further, the electric motor 55 of the whitening means 5 is also rotated.
In this state, when the rice grain group is made to flow down from the charging port 9 onto the perforated plate 19 of the stone removing and sorting machine 3, as described above, since the rice grain is light, it is exposed to the wind that obliquely rises up the long hole 15, while it is long. Since the holes 15 are opened in the upward direction of the perforated plate 19,
The force that tries to convey the rice grains upward acts. However, since the perforated plate 19 is installed in an inclined state, the rice grain is transported against the downward gravity, and as a result, both actions are balanced and the rice grain group is stopped almost at that place. .
Since rice grains are continuously supplied from the input port 9 here, the rice grains flow down below the slope as if they were a surface avalanche, and are extracted from the discharge port 10. On the other hand, foreign substances such as stones contained in the rice grains do not float due to the wind that obliquely rises up the long holes 15 because the specific gravity thereof is larger than that of the rice grains.
9 is conveyed upward in the direction of the perforated plate 19 by pushing up by the diagonal reciprocating motion of 9 and finally the foreign matter take-out port 1
It is taken out from 3.

【００１６】排出口１０に到達した米粒群は、重力によ
ってそのまま精米機５を構成する精白筒４３の投入口３
５に流下する。流下した米粒群は、回転している精白ロ
ール５２によって精白され、順次圧迫板３９を押し開け
て精白筒４３の傾斜下方端から連続的に流出し、一連の
精米工程が完了する。続いて種類の異なる別ロットの米
を精米する際には、運転を続けたままで圧迫板３９を手
で開くことで、精白筒４３内の残留米は、精白筒４３内
で高速に回転している転子にはね飛ばされ、しかも精白
筒が傾斜しているので全て排出されるから、従来のよう
にその都度停止して掻き出さなくてもよい。そしてこの
精白とともに発生する糠は、高速で回転する転子５３の
遠心力によって精白筒４３の周壁に開孔している多数の
微小孔より吐き出され、ダクト５９を通じてファン６３
によって糠ダクト６７から本装置１の外部に排出され
る。The rice grain group reaching the discharge port 10 is directly fed by gravity to the input port 3 of the polishing cylinder 43 which constitutes the rice polishing machine 5.
Run down to 5. The rice grains that have flowed down are whitened by the rotating whitening roll 52, sequentially press open the compression plate 39, and continuously flow out from the inclined lower end of the whitening cylinder 43 to complete a series of rice polishing steps. Subsequently, when polishing different types of rice in different lots, the pressure plate 39 is opened by hand while the operation is continued, so that the residual rice in the white polishing cylinder 43 rotates at high speed in the white polishing cylinder 43. Since it is blown off by the trochanter and the whole white cylinder is ejected because it is inclined, it is not necessary to stop and scrape each time as in the conventional case. The bran generated together with the whitening is discharged from a large number of minute holes formed in the peripheral wall of the whitening cylinder 43 by the centrifugal force of the rotator 53 rotating at a high speed, and the fan 63 through the duct 59.
Is discharged from the bran duct 67 to the outside of the device 1.

【００１７】また、上記作用の項で説明したように、精
米処理する米の品種が変わる場合には、供給インターバ
ルを設け、順次別品種の米粒群を投入し続ければよい。
さらに本装置１の前段に、篩をはじめとする公知の粒選
別手段を設け、米粒に対する大小粒を予め除去しておく
ことも、勿論採用されうることである。なお本実施例で
は、精米機５を石抜き選別機３の下流側に配置した場合
を示したが、その行程順序を逆にした場合（上流側に配
置）も作用効果は全く同じであり、好みに応じて適宜実
施できることは勿論である。Further, as explained in the section of the above-mentioned action, when the rice varieties to be milled are changed, it is only necessary to provide a supply interval and successively introduce the rice grain groups of different varieties.
Further, it is of course also possible to provide known grain selection means such as a sieve in the preceding stage of the present apparatus 1 to remove large and small grains with respect to rice grains in advance. In the present embodiment, the case where the rice polishing machine 5 is arranged on the downstream side of the stone removing and sorting machine 3 is shown, but the operation effect is exactly the same when the order of the steps is reversed (arranged on the upstream side). Of course, it can be appropriately implemented according to preference.

【００１８】[0018]

【発明の効果】本発明の精米機および石抜き精米機で
は、上記構成ならびにそれより得られる作用により、以
下の優れた効果を得ることができる。すなわち本発明で
は、石抜き選別機の下流側または上流側に、精米機をそ
の精白筒を傾斜させた状態で設けることと転子の高速回
転とが相まって、石抜き選別と精米とが連続的に処理可
能となり、例えば処理する米の品種が変わる場合でも、
装置を停止することなく連続稼働が実現できる。そし
て、精白ロールの突条を変曲させていることから、高速
で回転させても前述のから滑り現象が発生することな
く、効率的に精白することができ、また電動機直結によ
って動力伝達機材が不要となり、故障率の低減が図れ
る。さらに転子の高速化によって、遠心力を利用して糠
を精白筒より排除でき、従来の噴風式よりも付着糠の無
いきれいな精白米が得られる。その上、精米機の動力伝
達機構や噴風機構が不要なことで構造が一挙に簡素化
し、さらにスペースも極めてコンパクトにできるととも
に、製造コストも著しく低減することができる。INDUSTRIAL APPLICABILITY In the rice milling machine and the stone removing rice milling machine of the present invention, the following excellent effects can be obtained due to the above-mentioned constitution and the action obtained from it. That is, in the present invention, on the downstream side or upstream side of the stone removing sorter, the rice milling machine is provided with its whitening cylinder inclined, and the high speed rotation of the trochanter is combined to continuously perform the stone removing sort and the rice polishing. Even if the type of rice to be processed changes,
Continuous operation can be realized without stopping the equipment. Further, since the ridges of the whitening roll are bent, even if the whitening roll is rotated at a high speed, the whitening can be efficiently whitened without causing the slipping phenomenon as described above. It becomes unnecessary and the failure rate can be reduced. Furthermore, by increasing the speed of the trochanter, the bran can be removed from the milled barrel by using centrifugal force, and clean milled rice with no adherent bran can be obtained compared to the conventional blast type. Moreover, since the power transmission mechanism and the blast mechanism of the rice polishing machine are unnecessary, the structure can be simplified at once, the space can be made extremely compact, and the manufacturing cost can be remarkably reduced.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の石抜き精米機の構造を表す説明用正面
図FIG. 1 is an explanatory front view showing the structure of a stone removing rice mill of the present invention.

【図２】本発明の石抜き精米機の構造を表す説明用側面
図FIG. 2 is an explanatory side view showing the structure of a stone removing rice mill of the present invention.

【符号の説明】[Explanation of symbols]

１ 石抜き精米機 ３ 石抜き選別機 ５ 精米機 ７ 吐き出し用送風手段 ８ 筐体 ９ 投入口 １０ 排出口 １１ 取り出し口 １３ 異物取り出し口 １５ 長孔 １７ 筐体 １９ 多孔板 ２１ 駆動手段 ２３ 送風手段 ２５ 電動機 ２７ カム軸プーリー ２９ ベルト ３１ カム ３３ カムフォロワ ３５ 投入口 ３７ バネ ３９ 圧迫板 ４１ 微小孔 ４３ 精白筒 ４７ 送穀ロール ５１ 突条 ５２ 精白ロール ５３ 転子 ５５ 電動機 ５９ ダクト ６１ 筐体 ６３ ファン ６５ 回収筒 ６７ 糠ダクト 1 Stone Removing Rice Mill 3 Stone Removing Sorter 5 Rice Polishing Machine 7 Blower Means for Exhaust 8 Housing 9 Input Port 10 Ejection Port 11 Ejection Port 13 Foreign Material Ejection Port 15 Long Hole 17 Housing 19 Perforated Plate 21 Drive Means 23 Air Blower 25 Electric motor 27 Cam shaft pulley 29 Belt 31 Cam 33 Cam follower 35 Input port 37 Spring 39 Compression plate 41 Micro hole 43 Whitening cylinder 47 Grain feeding roll 51 Ridge 52 Whitening roll 53 Trouser 55 Electric motor 59 Duct 61 Housing 63 Fan 65 Recovery tube 67 bran duct

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】米穀投入側に送穀ロールが形成されるとと
もに、当該送穀ロールに続いて一体的に送穀ロール側を
送穀ロールと捩じり方向が同じの緩傾斜に、また先端側
を送穀ロールと捩じり方向が反対の緩傾斜になるよう突
条が形成された精白ロールが設けられた転子が、 多数の微小孔が周面に開口されるとともに先端を付勢力
によって圧迫する圧迫板が設けられた精白筒内に回転自
在に装填され、 前記転子が毎分１５００回以上の回転数で回転される精
米機。1. A grain transfer roll is formed on the rice grain input side, and the grain transfer roll side is integrated with the grain transfer roll so that the grain transfer roll has a gentle inclination with the same twisting direction as the grain transfer roll, and the tip end is also formed. The trochanter, which has a whitening roll with a ridge formed so that the twisting direction is opposite to that of the grain-feeding roll, is provided on the side, and a large number of minute holes are opened in the peripheral surface and the tip is biased. A rice milling machine that is rotatably loaded in a white polishing cylinder provided with a compression plate that compresses the trochanter and the trochanter is rotated at a rotation speed of 1500 times or more per minute. 【請求項２】前記転子が電動機に直結された請求項１記
載の精米機。2. The rice milling machine according to claim 1, wherein the trochanter is directly connected to an electric motor. 【請求項３】開口方向が板面に対して斜め上下方向とな
る長孔が全面に開口され、かつ水平方向に対して前記長
孔の開口方向と同一方向の所定角度で傾斜させて設けら
れた多孔板と、当該多孔板を水平方向に対してその傾斜
角度よりも大きい角度を有する斜め上下方向に往復振動
させる駆動手段と、多孔板の下方向から上方向に風を送
通させるための送風手段と、を備えた石抜き選別機と、 石抜き選別機の下流側または上流側に行程的に接続し、
米穀投入側を傾斜上方に位置付けかつ水平方向に対して
所定の角度で傾斜させて設けられ、多数の微小孔が周面
に開口されるとともに傾斜下方端を付勢力によって圧迫
する圧迫板が設けられた精白筒と、当該精白筒内に回転
自在に装填され、米穀投入側に送穀ロールが形成される
とともに、当該送穀ロールに続いて一体的に送穀ロール
側を送穀ロールと捩じり方向が同じの緩傾斜に、また先
端側を送穀ロールと捩じり方向が反対の緩傾斜になるよ
う突条が形成された精白ロールが設けられた転子と、を
備えた精米機と、を備えた石抜き精米機。3. An elongated hole whose opening direction is an obliquely vertical direction with respect to the plate surface is opened over the entire surface, and is inclined with respect to the horizontal direction at a predetermined angle in the same direction as the opening direction of the elongated hole. A perforated plate, drive means for reciprocally vibrating the perforated plate in an obliquely vertical direction having an angle larger than the inclination angle with respect to the horizontal direction, and for blowing air from the lower side to the upper side of the perforated plate. And a destoning sorter equipped with a blowing means, and is connected to the downstream side or the upstream side of the destoning sorter in a stroke manner,
The rice grain input side is positioned above the slope and is tilted at a predetermined angle with respect to the horizontal direction, and a large number of minute holes are opened in the peripheral surface and a compression plate that presses the tilted lower end by the biasing force is provided. And a brewing barrel, which is rotatably loaded into the brewing barrel, forms a grain-feeding roll on the rice-feeding side, and, following the grain-feeding roll, integrally twists the grain-feeding roll side with the grain-feeding roll. Rice milling machine with a gentle inclination with the same rolling direction, and a trochanter provided with a whitening roll with a ridge formed so that the tip side has a gentle inclination with the twisting direction opposite to that of the grain feeding roll. And a stone removing rice polishing machine. 【請求項４】前記転子が電動機に直結された請求項３記
載の石抜き精米機。4. The stone removing rice mill according to claim 3, wherein the trochanter is directly connected to an electric motor.