JPH0122820B2 - - Google Patents
Info
- Publication number
- JPH0122820B2 JPH0122820B2 JP25652984A JP25652984A JPH0122820B2 JP H0122820 B2 JPH0122820 B2 JP H0122820B2 JP 25652984 A JP25652984 A JP 25652984A JP 25652984 A JP25652984 A JP 25652984A JP H0122820 B2 JPH0122820 B2 JP H0122820B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- resistor
- comparison circuit
- limit switch
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003801 milling Methods 0.000 claims description 33
- 241000209094 Oryza Species 0.000 claims description 24
- 235000007164 Oryza sativa Nutrition 0.000 claims description 24
- 235000009566 rice Nutrition 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 235000013339 cereals Nutrition 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 4
- 235000021329 brown rice Nutrition 0.000 description 21
- 238000005498 polishing Methods 0.000 description 13
- 230000007423 decrease Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Adjustment And Processing Of Grains (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は精米機の循環回路中に抵抗体を自在に
出入させ自動的に精白圧力を調整する自動抵抗装
置を有する循環式精米機に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a circulating rice milling machine having an automatic resistance device that automatically adjusts the milling pressure by freely moving a resistor in and out of the circulation circuit of the rice milling machine. .
従来技術
自動抵抗装置を有する循環式精米機において
は、送穀ロールを駆動する主モータの電流値を検
出し、その電流値の変化を変換回路により電圧値
に変換し、比較回路に送出する。Prior Art In a circulating rice mill having an automatic resistance device, the current value of the main motor that drives the grain feeding roll is detected, and a change in the current value is converted into a voltage value by a conversion circuit, and the voltage value is sent to a comparison circuit.
精白が進み、送穀ロールの精白圧力が弱くなる
と主モータの電流値が減少し、比較回路への入力
電圧も減少する。 As milling progresses and the milling pressure of the grain feeding rolls becomes weaker, the current value of the main motor decreases and the input voltage to the comparison circuit also decreases.
比較回路への入力電圧が比較回路に設定された
基準範囲の下限まで低下すると、信号を駆動回路
に選出し、補助モータを回転し、これにより精米
機の循環回路の壁面に取付けられた抵抗体を循環
回路内に除々に突出させて精白圧力を高める。 When the input voltage to the comparator circuit drops to the lower limit of the reference range set in the comparator circuit, a signal is selected to the drive circuit to rotate the auxiliary motor, which causes the resistor attached to the wall of the circulation circuit of the rice milling machine to gradually protrude into the circulation circuit to increase the whitening pressure.
精白圧力が高まり、主モータの電流値が増大
し、比較回路への入力電圧が上昇し、設定された
基準電圧範囲の上限に達すると比較回路から駆動
回路への信号送出は止み、上記抵抗体の突出を停
止する。 The refining pressure increases, the current value of the main motor increases, and the input voltage to the comparator circuit increases. When the upper limit of the set reference voltage range is reached, the signal transmission from the comparator circuit to the drive circuit stops, and the above-mentioned resistor stop protruding.
このパターンを繰り返しつつ、精米が次第に進
行するものである。 Rice polishing progresses gradually by repeating this pattern.
しかるに、この装置においては比較回路に設定
された基準電圧は一定の範囲に定められているの
で、玄米と籾のように籾ガラを剥離した穀物と籾
ガラを被つた穀物とでは精米中の循環抵抗が異
り、玄米からの精白の方が籾からの精白より能率
の低下がみられ、従つて同一基準電圧では、玄米
精白の方が、精白時間が長くかゝり両穀物を同一
基準電圧では理想的精米が出来ない欠点があつ
た。 However, in this device, the reference voltage set in the comparator circuit is set within a certain range, so the circulation during rice milling is different for grains with hulls removed, such as brown rice and paddy, and grains covered with hulls. Because of the difference in resistance, efficiency is lower in milling from brown rice than in milling from paddy.Therefore, at the same reference voltage, milling from brown rice takes longer than milling from paddy. However, there was a drawback that ideal rice polishing could not be achieved.
参考技術
特開昭57−21943 精米機
発明が解決しようとする問題点
本発明は籾又は玄米の精白にさいし、従来の自
動精米機が、同一基準電圧では玄米からの精白の
方が、籾からの精白より精白時間が長くかかり、
能率が悪いと云う基本的欠点を解消することにあ
る。Reference technology JP-A-57-21943 Problems to be solved by the rice polishing machine invention The present invention is concerned with the polishing of paddy or brown rice. The polishing time is longer than that of
The goal is to eliminate the basic drawback of inefficiency.
問題点を解決するための手段
本発明を実施例の図面により説明すると、自動
抵抗装置を有する精米機において、自動抵抗装置
内の変換回路１２と、比較回路１３との間に、複
数個の抵抗とリミツトスイツチ１６により下記の
構成からなる電圧調整回路１７を設けるととも
に、該リミツトスイツチ１６の開閉機構として精
米機の外壁面に籾、玄米の表示目盛を有するダイ
ヤル１９を取付け、ダイヤル１９と連結したカム
２２にリミツトスイツチ１６のアクチユエータ２
４が係合するカム２２を配設する。Means for Solving the Problems The present invention will be explained with reference to drawings of embodiments. In a rice milling machine having an automatic resistance device, a plurality of resistors are installed between a conversion circuit 12 and a comparison circuit 13 in the automatic resistance device. A voltage adjustment circuit 17 is provided with the following configuration using a limit switch 16, and a dial 19 having a scale for displaying paddy and brown rice is attached to the outer wall of the rice milling machine as an opening/closing mechanism for the limit switch 16, and a cam 22 connected to the dial 19 is provided. Actuator 2 of limit switch 16
A cam 22 with which 4 is engaged is provided.
又電圧調整回路１７として変換回路１２の出力
側端子の一端ａと比較回路１３の入力側の一端ｃ
との間に抵抗R1を接続し、他端ｂを接地する。 Also, as the voltage adjustment circuit 17, one end a of the output side terminal of the conversion circuit 12 and one end c of the input side of the comparison circuit 13 are connected.
A resistor R1 is connected between the two ends, and the other end b is grounded.
又該抵抗R1の比較側端子ｅと、直列に接続し
た２ケの抵抗R2，R3を接続し、抵抗R3の端末ｇ
を接地するとともに抵抗R3と並列にリミツトス
イツチ１６を設ける。 Also, connect the comparison side terminal e of the resistor R 1 to two resistors R 2 and R 3 connected in series, and connect the terminal g of the resistor R 3 .
is grounded and a limit switch 16 is provided in parallel with the resistor R3 .
或は又、電圧調整回路の他の実施例として第３
図に示す如く変換回路１２と比較回路１３を端子
ａ及びｃにより接続するとともに端子ｂを接地
し、又比較回路１３の基準電圧電源１８と比較回
路１３との間に抵抗R4を接続し、該抵抗R4に並
列にリミツトスイツチ１６を設けるとともに、抵
抗R4の比較回路側端子ｈに抵抗R5の一端を接続
し、他端を接地する。 Alternatively, as another embodiment of the voltage adjustment circuit, the third
As shown in the figure, the conversion circuit 12 and the comparison circuit 13 are connected by terminals a and c, and the terminal b is grounded, and a resistor R 4 is connected between the reference voltage power supply 18 of the comparison circuit 13 and the comparison circuit 13, A limit switch 16 is provided in parallel with the resistor R4 , and one end of a resistor R5 is connected to the comparison circuit side terminal h of the resistor R4 , and the other end is grounded.
作 用
本発明の循環式精米機において籾を循環タンク
１内に投入し、ダイヤル１９の指標１９ａを目盛
板２０の籾の位置に合わせると、電源が入り、籾
は矢印A1の方向に循環し精白が始まる。Function In the circulating rice mill of the present invention, when paddy is put into the circulation tank 1 and the indicator 19a of the dial 19 is aligned with the paddy position on the scale plate 20, the power is turned on and the paddy is circulated in the direction of arrow A1 . The whitening process begins.
精白が進むに従つて籾ガラに依る抵抗が減少
し、送穀ロール３の精白圧力が減少するので主モ
ータ２の出力も減少し、電流値も出力に比例して
時間とともに減少する。 As the milling progresses, the resistance due to the rice hulls decreases, and the milling pressure of the grain feeding roll 3 decreases, so the output of the main motor 2 also decreases, and the current value also decreases with time in proportion to the output.
主モータ２の電流値の変化は変換回路１２によ
り電圧値に変換され、電圧調整回路１７を経て比
較回路１３に入力される。主モータ２の電流値が
減少し、比較回路１３への入力電圧が比較回路の
設定基準電圧範囲の下限に達すると、比較回路１
３から駆動回路１５に信号が送出され、駆動回路
１５を作動させて補助モータ９を正回転させる。 Changes in the current value of the main motor 2 are converted into voltage values by the conversion circuit 12 and input to the comparison circuit 13 via the voltage adjustment circuit 17. When the current value of the main motor 2 decreases and the input voltage to the comparator circuit 13 reaches the lower limit of the set reference voltage range of the comparator circuit, the comparator circuit 1
3 sends a signal to the drive circuit 15, which activates the drive circuit 15 to rotate the auxiliary motor 9 in the forward direction.
補助モータ９の正回転により第５図に示すごと
く抵抗体７を循環回路内へ矢印A2の方向に突出
させ籾の流れに対して抵抗が増大するので送穀ロ
ール３の負荷が増し主モータ２の出力も抵抗体７
の突出量ｌに比例して増大し、電流値も上昇し、
又比較回路１３への入力電圧も上昇する。 As shown in Fig. 5, the positive rotation of the auxiliary motor 9 causes the resistor 7 to protrude into the circulation circuit in the direction of arrow A2 , increasing the resistance to the flow of paddy, increasing the load on the grain feeding rolls 3 and increasing the load on the main motor. The output of 2 is also resistor 7
increases in proportion to the protrusion amount l, and the current value also increases,
Furthermore, the input voltage to the comparator circuit 13 also increases.
比較回路１３への入力電圧が上昇し、設定基準
電圧範囲の上限に達すると、駆動回路１５へ送ら
れる信号が止まり補助モータ９の回転は停止し抵
抗体７の突出も止む。 When the input voltage to the comparator circuit 13 increases and reaches the upper limit of the set reference voltage range, the signal sent to the drive circuit 15 is stopped, the rotation of the auxiliary motor 9 is stopped, and the protrusion of the resistor 7 is also stopped.
更に精白が進むと送穀ロール３の精白圧力が減
少し、上記と同じ作用にて抵抗体７が更に突出
し、停止する。 As the milling progresses further, the milling pressure of the grain feeding roll 3 decreases, and the resistor 7 further protrudes and stops due to the same effect as described above.
このサイクルを繰返し、籾の精米が完了する。
玄米の精米の場合には籾の精米の場合と同様に玄
米を循環タンク１内に投入し、ダイヤル１９の指
標１９ａを目盛板２０の玄米の目盛２０ｂまで廻
すと電源が入り、籾の場合と同様な作用で玄米の
精白が自動的に行われるが、玄米の場合には籾に
比して籾ガラによる摩擦抵抗が小さいため、精白
圧力が弱く、又玄米相互の摩擦圧力も弱いので上
述の籾精白と同一の能率で精白するためには抵抗
体７の突出量ｌを籾の時よりも大きくすることが
好ましく、このため玄米の精白の場合は比較回路
の設定基準電圧を籾の場合よりも高くすることが
必要である。 This cycle is repeated to complete the polishing of the paddy.
In the case of milling brown rice, put the brown rice into the circulation tank 1 in the same way as in the case of milling paddy, and turn the indicator 19a of the dial 19 to the scale 20b of brown rice on the scale plate 20 to turn on the power. Brown rice is automatically milled by the same action, but in the case of brown rice, the frictional resistance due to the hulls is smaller than that of the paddy, so the polishing pressure is weak, and the frictional pressure between the brown rice is also weak, so the above-mentioned method is applied. In order to mill rice with the same efficiency as paddy milling, it is preferable to make the protrusion amount l of the resistor 7 larger than when milling paddy. Therefore, in the case of milling brown rice, the set reference voltage of the comparison circuit should be set higher than in the case of milling paddy. It is also necessary to increase the
いま、ダイヤル１９の指標１９ａを目盛板２０
の玄米の目盛２０ｂの位置に合すことにより電圧
調整回路１７のリミツトスイツチ１６のアクチユ
エータ２４をカム２２の切欠き２３に落下させ、
リミツトスイツチ１６をオンにする。 Now, move the indicator 19a of the dial 19 to the scale plate 20.
The actuator 24 of the limit switch 16 of the voltage adjustment circuit 17 is dropped into the notch 23 of the cam 22 by aligning it with the position of the brown rice scale 20b.
Turn on limit switch 16.
リミツトスイツチ１６のオンにより第２図に示
す如き実施例の電圧調整回路（特許請求の範囲第
２項記載のもの）の場合には抵抗R3の両端を短
絡するので抵抗R1による電圧降下を増加し比較
回路１３への入力電圧を減少させ、比較回路１３
の基準電圧を実質的に高め、籾の場合の時よりも
抵抗体７の突き出し量ｌを増大させ、循環回路の
精白圧力を玄米に適した値とすることが出来る。 When the limit switch 16 is turned on, in the case of the voltage regulating circuit of the embodiment shown in FIG. 2 (as described in claim 2), both ends of the resistor R3 are short-circuited, thereby increasing the voltage drop due to the resistor R1 . The input voltage to the comparator circuit 13 is decreased, and the input voltage to the comparator circuit 13 is reduced.
It is possible to substantially increase the reference voltage of the paddy, increase the protrusion amount l of the resistor 7 compared to the case of paddy rice, and set the polishing pressure of the circulation circuit to a value suitable for brown rice.
又電圧調整回路１７を第３図に示す如き実施例
の電圧調整回路とした場合（特許請求の範囲第３
項記載のもの）にはリミツトスイツチ１６のオン
により抵抗R4を短絡させることにより抵抗R4に
よる電圧降下を零として比較回路１３の基準電圧
値を高め、前記と同様に抵抗体７の突出量ｌを籾
の場合よりも増大させ、精白圧力を玄米に適した
値とすることが出来る。 Further, when the voltage adjustment circuit 17 is the voltage adjustment circuit of the embodiment shown in FIG.
2), by turning on the limit switch 16 and short-circuiting the resistor R4 , the voltage drop due to the resistor R4 is made zero and the reference voltage value of the comparator circuit 13 is increased, and the protrusion amount l of the resistor 7 is increased in the same way as above. can be increased compared to that for paddy, and the milling pressure can be set to a value suitable for brown rice.
実施例
本発明の実施例を添付図面により説明すると第
４図に示すごとく循環タンク１内の穀物は主モー
タ２により、駆動する送穀ロール３の回転により
精白室４、循環回路５内を矢印A1の如く循環し、
垂直外壁面５ａを貫通して設けた自動制御装置６
の抵抗体７と送穀ロール３及び穀物相互の摩擦に
よる精白作用により精米が進行する。Embodiment An embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. Circulate like A 1 ,
Automatic control device 6 provided through the vertical outer wall surface 5a
Rice milling progresses due to the polishing action caused by the friction between the resistor 7, the grain feeding roll 3, and the grains.
自動制御装置は第５図に示す如く循環回路５の
垂直外壁面５ａに固定された支持台８に固定され
た補助モータ９、補助モータ９に連結したカツプ
リング１１、カツプリング１１に螺合して設けた
回転止用突起１０を有する抵抗体７及び第１図に
示す如く、主モータ２と補助モータ９の間に接続
され、主モータ２の電流値の変化を受けて補助モ
ータ９の回転及び抵抗体７の突出量ｌを制御する
電気的接続系より構成されている。 As shown in FIG. 5, the automatic control device includes an auxiliary motor 9 fixed to a support base 8 fixed to the vertical outer wall surface 5a of the circulation circuit 5, a coupling 11 connected to the auxiliary motor 9, and screwed onto the coupling 11. As shown in FIG. 1, a resistor 7 having a rotation-stopping protrusion 10 is connected between the main motor 2 and the auxiliary motor 9, and controls the rotation and resistance of the auxiliary motor 9 in response to changes in the current value of the main motor 2. It is composed of an electrical connection system that controls the protrusion amount l of the body 7.
電気的接続系は第１図のブロツク図に示す如く
主モータ２の電流値の変化を電圧値の変化に変
へ、電圧調整回路１７を経て比較回路１３へ送出
する変換回路１２、変換回路１２からの電圧を受
け籾又は玄米の精白に適するように比較回路１３
への入力電圧を調整し、或は比較回路の基準電圧
を調整するための電圧調整回路１７、電圧調整回
路１７からの入力電圧を設定基準電圧と対比して
駆動回路１５への信号送出を制御する比較回路１
３、比較回路の出力の一部を正帰還させ、比較回
路の出力を増巾する正帰還回路１４、比較回路１
３からの送出信号により補助モータ９への駆動信
号を送出する駆動回路１５により構成されてい
る。 As shown in the block diagram of FIG. 1, the electrical connection system includes a conversion circuit 12 that converts changes in the current value of the main motor 2 into changes in voltage value, and sends the voltage to the comparison circuit 13 via the voltage adjustment circuit 17. The comparison circuit 13 receives the voltage from the
A voltage adjustment circuit 17 for adjusting the input voltage to or the reference voltage of the comparison circuit, and controlling the signal transmission to the drive circuit 15 by comparing the input voltage from the voltage adjustment circuit 17 with a set reference voltage. Comparison circuit 1
3. Positive feedback circuit 14 that positively feeds back part of the output of the comparison circuit to amplify the output of the comparison circuit, comparison circuit 1
The drive circuit 15 is configured to send a drive signal to the auxiliary motor 9 based on a signal sent from the motor 3.
電圧調整回路１７としては第２図及び第３図に
示した如く変換回路１２の出力端子ａ，ｂと比較
回路１３の入力端子ｃ，ｄの間に接続したものと
比較回路１３と比較回路の基準電圧電源１８との
間に接続したものがあり、その回路構成は前記の
とおりであるが、そのリミツトスイツチ１６は第
７図に示すごとくダイヤル１９の操作によりダイ
ヤル１９に連結された切欠き２３を有するカム２
２によりアクチユエータ２４を上下することによ
り開閉されるよう配設されている。 As shown in FIGS. 2 and 3, the voltage adjustment circuit 17 includes one connected between the output terminals a, b of the conversion circuit 12 and the input terminals c, d of the comparison circuit 13, and one connected between the comparison circuit 13 and the input terminals c, d of the comparison circuit 13. The limit switch 16 is connected between the reference voltage power source 18 and the circuit configuration is as described above, but the limit switch 16 is connected to the notch 23 connected to the dial 19 by operating the dial 19 as shown in FIG. cam with 2
2 to open and close the actuator 24 by moving it up and down.
又ダイヤル１９は第６図に示すごとく、籾、玄
米、閉の表示のある目盛り板２０とともに精米機
の外壁面に取付られ、ダイヤル１９の指標１９ａ
を籾又は玄米の目盛２０ａ，２０ｂの位置に合わ
せるとリミツトスイツチ１６が開閉されるととも
に第７図に示すごとくダイヤル１９に連結された
屈曲杆２５により循環回路５内に設けられた入口
開閉板２１が同じく開閉され穀物の循環量を調節
し、精白圧力を調整する。 Further, as shown in FIG. 6, the dial 19 is attached to the outer wall of the rice mill along with a scale plate 20 that displays paddy, brown rice, and closed, and the indicator 19a of the dial 19
When it is aligned with the paddy or brown rice scales 20a and 20b, the limit switch 16 is opened and closed, and as shown in FIG. It is also opened and closed to adjust the amount of grain circulation and the milling pressure.
精白の進行過程、自動抵抗装置６、電圧調整回
路１７の機能、作用については前述のとおりであ
る。 The progress of polishing, the functions and operations of the automatic resistance device 6 and the voltage adjustment circuit 17 are as described above.
発明の効果
この発明は以上述べたように精米機の外壁に設
けられたダイヤル指標を目盛り板に表示された籾
又は玄米の目盛り位置に合わせることにより、ダ
イヤルに連結されたカム機構により開閉するリミ
ツトスイツチを使用した電圧調整回路により検出
回路の基準電圧を調整し、循環回路への抵抗体の
突出量を自動的に籾又は玄米の精白に適した量に
制御することが出来るので、従来のように玄米精
白のとき特に低能率で、長時間精米することな
く、単にダイヤルを各目盛に合せるだけで籾精
白、玄米精白共に所定の精白時間で精米すること
が出来る。Effects of the Invention As described above, the present invention provides a limit switch that is opened and closed by a cam mechanism connected to the dial by aligning the dial index provided on the outer wall of the rice milling machine with the scale position of paddy or brown rice displayed on the scale plate. The reference voltage of the detection circuit can be adjusted using a voltage adjustment circuit using When polishing brown rice, it is possible to polish both paddy and brown rice in a predetermined polishing time by simply setting the dial to each scale without having to mill rice for a long time at low efficiency.
第１図は本発明の実施例を示す精米機の自動抵
抗装置の電気的接続系統を示すブロツクダイヤグ
ラム、第２図は第１図の電圧調整回路の回路図、
第３図は同電圧調整回路の他の実施例の回路図、
第４図は本発明の実施例を示す精米機の縦断面
図、第５図は第４図内の自動抵抗装置の要部拡大
断面図、第６図は籾又は玄米精白の切替用ダイヤ
ル及び目盛板の概略平面図、第７図はリミツトス
イツチを開閉するカム機構の斜視図である。
１……循環タンク、２……主モータ、５……循
環回路、６……自動抵抗装置、７……抵抗体、９
……補助モータ、１２……変換回路、１３……比
較回路、１６……リミツトスイツチ、１７，１７
ａ，１７ｂ……電圧調整回路、１８……基準電圧
電源、１９……ダイヤル、２２……カム、２４…
…アクチユエータ。
FIG. 1 is a block diagram showing an electrical connection system of an automatic resistance device for a rice milling machine showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of the voltage adjustment circuit shown in FIG. 1.
FIG. 3 is a circuit diagram of another embodiment of the same voltage adjustment circuit,
Fig. 4 is a vertical sectional view of a rice milling machine showing an embodiment of the present invention, Fig. 5 is an enlarged sectional view of the main part of the automatic resistance device in Fig. 4, and Fig. 6 is a dial for switching between paddy or brown rice polishing and FIG. 7 is a schematic plan view of the scale plate and a perspective view of the cam mechanism for opening and closing the limit switch. 1... Circulation tank, 2... Main motor, 5... Circulation circuit, 6... Automatic resistance device, 7... Resistor, 9
... Auxiliary motor, 12 ... Conversion circuit, 13 ... Comparison circuit, 16 ... Limit switch, 17, 17
a, 17b... Voltage adjustment circuit, 18... Reference voltage power supply, 19... Dial, 22... Cam, 24...
...actuator.
Claims (1)
在に出し入れされる抵抗体７を設け、精米機主モ
ータ２と補助モータ９との間に変換回路１２比較
回路１３、正帰還回路１４、駆動回路１５を順次
接続して成る自動抵抗装置を有する精米機におい
て、変換回路１２と比較回路１３との間に複数個
の抵抗と１個のリミツトスイツチ１６を接続して
成る電圧調整回路１７を設け、該リミツトスイツ
チ１６をダイヤル１９に連動するカム機構と係合
するよう配設したことを特徴とする循環式精米
機。 ２ 電圧調整回路１７ａは、変換回路１２の出力
端子の一端ａと抵抗R1の一端を接続し、R1の他
端ｅと比較回路１３の入力端子ｃを接続し、変換
回路１２出力端子の他端ｂを接地し、抵抗R1の
比較回路側端子ｅと抵抗R2、抵抗R3を順次直列
に接続し、接地すると共に、抵抗R3の両端ｆ，
ｇ間にリミツトスイツチ１６を抵抗R3と並列に
接続して成ることを特徴とする特許請求の範囲第
１項記載の循環式精米機。 ３ 電圧調整回路１７ｂ、変換回路１２の出力側
端子ａと比較回路１３の入力側端子ｃとを接続
し、変換回路の出力側の他端子ｂを接地し、次に
また比較回路１３の基準電圧電源１８と比較回路
１３との間に抵抗R4を接続し、抵抗R4の比較回
路側端子ｈと抵抗R5を接続し、R5の他端子を接
地するとともに、抵抗R4の両端子ｈ，ｉ間に抵
抗R4と並列にリミツトスイツチ１６を接続して
成ることを特徴とする特許請求の範囲第１項記載
の循環式精米機。[Claims] 1. A resistor 7 is provided in the grain circulation circuit 5 to be freely taken in and out by an auxiliary motor 9, and a conversion circuit 12, a comparison circuit 13, a positive In a rice milling machine having an automatic resistance device formed by sequentially connecting a feedback circuit 14 and a drive circuit 15, voltage adjustment is formed by connecting a plurality of resistors and one limit switch 16 between a conversion circuit 12 and a comparison circuit 13. A circulating rice milling machine characterized in that a circuit 17 is provided, and the limit switch 16 is arranged to engage with a cam mechanism interlocked with a dial 19. 2. The voltage adjustment circuit 17a connects one end a of the output terminal of the conversion circuit 12 to one end of the resistor R1 , connects the other end e of R1 to the input terminal c of the comparison circuit 13, and connects the output terminal of the conversion circuit 12 to the input terminal c of the comparison circuit 13. The other end b is grounded, and the comparison circuit side terminal e of the resistor R 1 is connected in series with the resistor R 2 and the resistor R 3 , and both ends f of the resistor R 3 are connected to the ground.
2. The circulating rice milling machine according to claim 1, wherein a limit switch 16 is connected in parallel with a resistor R3 between the terminals G and R3. 3 Connect the voltage adjustment circuit 17b, the output side terminal a of the conversion circuit 12, and the input side terminal c of the comparison circuit 13, ground the other output side terminal b of the conversion circuit, and then connect the reference voltage of the comparison circuit 13 again. A resistor R4 is connected between the power supply 18 and the comparator circuit 13, a terminal h of the resistor R4 on the comparator circuit side and a resistor R5 are connected, the other terminal of R5 is grounded, and both terminals of the resistor R4 are connected. 2. The circulating rice milling machine according to claim 1, further comprising a limit switch 16 connected in parallel with a resistor R4 between h and i.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25652984A JPS61136444A (en) | 1984-12-06 | 1984-12-06 | Circulation type rice-cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25652984A JPS61136444A (en) | 1984-12-06 | 1984-12-06 | Circulation type rice-cleaning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61136444A JPS61136444A (en) | 1986-06-24 |
| JPH0122820B2 true JPH0122820B2 (en) | 1989-04-27 |
Family
ID=17293888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25652984A Granted JPS61136444A (en) | 1984-12-06 | 1984-12-06 | Circulation type rice-cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61136444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022113505A1 (en) | 2020-11-25 | 2022-06-02 | 株式会社豊田自動織機 | Electrolytic processing device |
-
1984
- 1984-12-06 JP JP25652984A patent/JPS61136444A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022113505A1 (en) | 2020-11-25 | 2022-06-02 | 株式会社豊田自動織機 | Electrolytic processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61136444A (en) | 1986-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5253564A (en) | Conveyor oven control | |
| US4726729A (en) | Electric motor-actuated load clamp with clamping force control | |
| US5038247A (en) | Method and apparatus for inductive load control with current simulation | |
| US5281902A (en) | Voltage compensation of a pulse-width-modulated servomechanism | |
| US4210855A (en) | Apparatus for regulating the current drawn from an electric battery | |
| US4078721A (en) | Greenhouse control device | |
| JPH0122820B2 (en) | ||
| US4508034A (en) | Control mechanism to disable driven ink metering elements in rotary printing machines | |
| US5632000A (en) | Device for optimizing the speed control behavior of a subfractional horsepower motor | |
| US4357806A (en) | Controller for variable air volume cooling system | |
| CN1004338B (en) | Method and apparatus for controlling a variable speed geared motor | |
| US4249113A (en) | Load controller | |
| JPH0112542B2 (en) | ||
| EP0031987B1 (en) | Reference voltage generating circuit in dc regulated power source apparatus | |
| JPS6252625B2 (en) | ||
| US2619631A (en) | Regulating apparatus | |
| JPS62263515A (en) | Hot and cold water mixing device | |
| KR960015795B1 (en) | Phase control circuit of charger | |
| CA1175476A (en) | Universal signal translator for motor speed control | |
| US3732065A (en) | Strip annealing line temperature control system | |
| JP2502820B2 (en) | Hot water mixing device | |
| EP0642681B1 (en) | Method and apparatus for controlling a current generator | |
| USRE22508E (en) | Motor control system | |
| JPH0250782B2 (en) | ||
| JPH082396B2 (en) | Sewing machine presser lifting control device |