JPH0659916B2 - Liquid level control method and apparatus for filling machine - Google Patents
Liquid level control method and apparatus for filling machineInfo
- Publication number
- JPH0659916B2 JPH0659916B2 JP61009884A JP988486A JPH0659916B2 JP H0659916 B2 JPH0659916 B2 JP H0659916B2 JP 61009884 A JP61009884 A JP 61009884A JP 988486 A JP988486 A JP 988486A JP H0659916 B2 JPH0659916 B2 JP H0659916B2
- Authority
- JP
- Japan
- Prior art keywords
- filling machine
- lower limit
- limit value
- calculation result
- liquid level
- 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 - Fee Related
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は充填機内の液面高さを一定に保持する充填機の
液面制御方法及び装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a liquid level control method and apparatus for a filling machine, which maintains a constant liquid level in the filling machine.
（従来の技術） 従来の充填機の液面制御装置を第４図により説明する
と，(50)が充填機（タンク），(51)がフロート，(52)が
弁，(57)が弁座，(53)がコントロール弁，(54)が充填機
(50)への送液配管，(55)(56)がロータリシール，(58)が
圧力空気源，(59)がエアフイルタ，(60)(63)(65)がエア
レギユレータ，(61)が圧力スイッチ，(62)が制御器，(6
4)(66)が電磁弁，(68)がフイルタ，(69)が圧力空気供給
管，(70)が導圧管で，充填液がフイルタ(68)→コントロ
ール弁(53)→送液配管(54)→ロータリシール(55)を経て
充填機(50)へ送られ，さらに同充填機(50)から充填バル
ブ（図示せず）を経て容器へ充填される。また同充填機
(50)内に設けたフロート(51)が充填機(50)内の液面高さ
に追従して昇降する。同フロート(51)には，弁(52)が取
付けられており，フロート(51)とともに昇降する。液面
が上昇して，フロート(51)が上昇すると，弁(52)は上昇
し，弁座(57)に着座して，この部分を閉じる。また液面
が下降して，フロート(51)が下降すると，弁(52)は下降
し，弁座(57)から離れて，この部分を開く。この弁(52)
及び弁座(57)の部分には，圧力空気供給源(58)からエア
フイルタ(59)→エアレギユレータ（圧力空気を一定圧に
調圧するエアレギユレータ）(60)→圧力空気供給管(69)
→ロータリシール(56)を経て圧力空気が供給され，また
同圧力空気供給管(69)には，空気圧により動作する圧力
スイッチ(61)が設けられ，同圧力スイッチ(61)の動作信
号が制御器(62)へ送られ，同制御器(62)で得られた制御
信号が電磁弁(64)(66)へ送られ，同電磁弁(64)(66)が制
御され，圧力空気が圧力空気供給源(58)からエアフイル
タ(59)→エアレギユレータ（圧力空気を一定圧に調圧す
るエアレギユレータ）(63)(65)→電磁弁(64)(66)→導圧
管(70)を経てコントロール弁(53)へ送られて，同コント
ロール弁(53)が制御される。いま充填機(50)内の液面が
充分に高いと，弁(52)は閉じており，圧力空気供給管(6
9)内の圧力は，エアレギユレータ(60)の設定圧に等し
く，圧力スイツチ(61)は，切り（または入）のの状態に
あり，制御器(62)は，電磁弁(64)へ開の制御信号を送
り，コントロール弁(53)がエアレギユレータ(63)の設定
圧に比例した開度（充填機が必要としている流量よりも
少ない流量の充填液を流す開度）で開かれ，充填機(50)
への送液量が減少して，充填機(50)の液面が下降する。
また充填機(50)の液面が下降すると，フロート(51)が下
降して，弁(52)が開かれ，圧力空気供給管(69)内に圧力
空気が流れ始め，同圧力空気供給管(69)内の圧力が低下
して，圧力スイツチ(61)が入（または切）の状態に切り
替わり，このとき，得られる動作信号が制御器(62)へ送
られ，同制御器(62)から電磁弁(64)へ閉の制御信号が送
られて同電磁弁(64)が閉じるとともに、電磁弁(64)へ開
の制御信号が送られて同電磁弁(64)が開かれ，コントロ
ール弁(53)がエアレギユレータ(65)の設定圧に比例した
開度（充填機が必要としている流量よりも多い流量の充
填液を流す開度）で開かれ，充填機(50)への送液量が増
加して，充填機(50)の液面が上昇する。(Prior Art) A conventional liquid level control device for a filling machine will be described with reference to FIG. 4. (50) is a filling machine (tank), (51) is a float, (52) is a valve, and (57) is a valve seat. , (53) control valve, (54) filling machine
Liquid transfer piping to (50), (55) (56) rotary seal, (58) pressure air source, (59) air filter, (60) (63) (65) air regu- lator, (61) pressure. Switch, (62) is controller, (6
4) (66) is a solenoid valve, (68) is a filter, (69) is a pressure air supply pipe, (70) is a pressure guiding pipe, and the filling liquid is a filter (68) → control valve (53) → liquid supply pipe ( 54) → It is sent to the filling machine (50) through the rotary seal (55), and is further filled in the container through the filling machine (50) through a filling valve (not shown). Also the same filling machine
The float (51) provided in the (50) moves up and down following the liquid level in the filling machine (50). A valve (52) is attached to the float (51) and moves up and down together with the float (51). When the liquid level rises and the float (51) rises, the valve (52) rises and sits on the valve seat (57), closing this portion. Further, when the liquid level descends and the float (51) descends, the valve (52) descends, separates from the valve seat (57), and opens this portion. This valve (52)
Also, in the valve seat (57), an air filter (59) from the pressure air supply source (58) → an air regulator (air regulator that regulates the pressure air to a constant pressure) (60) → a pressure air supply pipe (69)
→ Pressure air is supplied through the rotary seal (56), and the pressure air supply pipe (69) is equipped with a pressure switch (61) operated by air pressure, and the operation signal of the pressure switch (61) is controlled. The control signal obtained by the controller (62) is sent to the solenoid valve (64) (66), the solenoid valve (64) (66) is controlled, and the pressure air is pressurized. From the air supply source (58) to the air filter (59) → air regulator (air regulator that regulates the pressure air to a constant pressure) (63) (65) → solenoid valve (64) (66) → pressure control pipe (70) It is sent to 53) and the control valve (53) is controlled. Now, when the liquid level in the filling machine (50) is sufficiently high, the valve (52) is closed and the pressurized air supply pipe (6
The pressure in 9) is equal to the set pressure of the air regulator (60), the pressure switch (61) is in the off (or on) state, and the controller (62) is open to the solenoid valve (64). A control signal is sent, the control valve (53) is opened at an opening proportional to the set pressure of the air regu- lator (63) (the opening that allows the filling liquid to flow at a flow rate less than that required by the filling machine), and the filling machine ( 50)
The amount of liquid to be supplied to the filling machine (50) decreases and the liquid level of the filling machine (50) drops.
Further, when the liquid level of the filling machine (50) descends, the float (51) descends, the valve (52) is opened, and pressurized air starts to flow in the pressurized air supply pipe (69). The pressure in (69) drops, and the pressure switch (61) switches to the on (or off) state. At this time, the obtained operation signal is sent to the controller (62), and the controller (62) Sends a closing control signal to the solenoid valve (64) to close the solenoid valve (64) and sends an opening control signal to the solenoid valve (64) to open the solenoid valve (64) for control. The valve (53) is opened at an opening proportional to the set pressure of the air regu- lator (65) (the opening that allows the filling liquid to flow at a flow rate higher than that required by the filling machine), and the liquid is sent to the filling machine (50). As the amount increases, the liquid level in the filling machine (50) rises.
（発明が解決しよううとする課題） 本発明は前記の問題点に鑑み提案するものであり、その
目的とする処は、充填機内の液面変動を小さくできる。
また充填機の液面高さを容易に変更できる。さらに容器
の品種が変わる毎に行っていた圧力スイツチ、エアレギ
ユレータ等での圧力調整動作を不要にできる充填機の液
面制御方法及び装置を提供しようとする点にある。(Problems to be Solved by the Invention) The present invention is proposed in view of the above problems, and an object of the present invention is to reduce the liquid level fluctuation in the filling machine.
Further, the liquid level of the filling machine can be easily changed. Further, another object of the present invention is to provide a liquid level control method and device for a filling machine, which can eliminate the need for pressure adjustment operations such as a pressure switch and an air regulator, which have been performed every time the type of container changes.
（課題を解決するための手段） 上記の目的を達成するために、本発明の充填機の液面制
御方法は、非定常運転時には、充填機に取付けた液面検
出部からの液面高さに比例した液面検出信号と充填機制
御部からの充填機運転状態検出信号とを制御器の演算器
へ送り、ここで充填機への必要送液流量を演算し、その
演算結果を非定常・定常切換えスイツチを経て上下限リ
ミツタへ送り、ここで同必要送液流量の演算結果が適正
であるか否かをチエックして、上下限リミツタ内に予め
設定した上限値以下及び下限値以上であるときは演算結
果を開度信号として送液配管に取付けたコントロール弁
へ送出し、上記演算結果が上下限リミツタ内に予め設定
した上限値よりも大きいときは同上限値を、また上記演
算結果が上下限リミツタ内に予め設定した下限値よりも
小さいときは同下限値を、開度信号として上記コントロ
ール弁へ送出し、定常運転時には、上記演算器の演算結
果を非定常・定常切換えスイツチを経て制御器の流量制
御器へ送るとともに充填機制御器からの充填機運転状態
検出信号を同流量制御器へ送り、ここで上記コントロー
ル弁の開度を演算し、その演算結果を非定常・定常切換
えスイツチを経て上下限リミツタへ送り、ここでコント
ロール弁の開度演算結果が適正であるか否かをチエツク
して、上下限リミツタ内に予め設定した上限値以下及び
下限値以上であるときは演算結果を開度信号として送液
配管に取付けたコントロール弁へ送出し、上記演算結果
が上下限リミツタ内に予め設定した上限値よりも大きい
ときは同上限値を、また上記演算結果が上下限リミツタ
内に予め設定した下限値よりも小さいときは同下限値
を、開度信号として上記コントロール弁へ送出して、充
填機への送液流量を制御することを特徴としている。(Means for Solving the Problems) In order to achieve the above object, the liquid level control method for a filling machine according to the present invention is such that, during unsteady operation, the liquid level height from a liquid level detection unit attached to the filling machine is high. Is sent to the calculator of the controller to calculate the required liquid flow rate to the filling machine and the calculation result is unsteady.・ Send to the upper / lower limit limiter via the steady switching switch, check here whether or not the calculation result of the required liquid flow rate is appropriate, and check whether it is below the upper limit value or above the lower limit value set in advance in the upper / lower limit limiter. In some cases, the calculation result is sent as an opening signal to the control valve attached to the liquid delivery pipe, and when the above calculation result is larger than the upper limit value preset in the upper and lower limiter, the same upper limit value is returned, and the above calculation result is also returned. Is preset in the upper and lower limiters When the value is smaller than the lower limit value, the lower limit value is sent to the control valve as an opening signal, and during steady operation, the calculation result of the calculator is sent to the flow controller of the controller via the unsteady / steady switching switch. At the same time, the filling machine operating state detection signal from the filling machine controller is sent to the same flow rate controller, the opening of the control valve is calculated here, and the calculation result is sent to the upper / lower limit limiter via the unsteady / steady switching switch. , Check here whether the control valve opening calculation result is appropriate, and if the calculation result is below the upper limit value and above the lower limit value set in advance in the upper and lower limiter, send the calculated result as the opening signal. When it is sent to the control valve attached to the pipe and the above calculation result is larger than the preset upper limit value in the upper / lower limit limiter, the same upper limit value is set, and the above calculation result is set in the upper / lower limit limiter. It is smaller than the lower limit value set because the the same lower limit, by sending a position signal to said control valve, is characterized by controlling the liquid feed flow to the filling machine.
また本発明の充填機の液面制御装置は、充填機に取付け
た液面検出部と、充填機への送液配管に取付けた流量検
出部と、充填機制御部と、充填機への送液配管に取付け
たコントロール弁と、制御器とを有し、同制御器を、上
記液面検出部からの液面高さに比例した液面検出信号と
上記充填機制御部から充填機運転状態検出信号とにより
充填機への必要送液流量を演算する演算器と、同演算器
の演算結果と上記流量検出部からの実送液流量検出信号
とにより上記コントロール弁の開度を演算する流量制御
器と、同流量制御器の演算結果が適正であるか否かをチ
エツクして、内部に予め設定した上限値以下及び下限値
以上であるときは演算結果を開度信号として送液配管に
取付けたコントロール弁へ送出し、上記演算結果が内部
に予め設定した上限値よりも大きいときは同上限値を、
また上記演算結果が内部に予め設定した下限値よりも小
さいときは同下限値を、開度信号として上記コントロー
ル弁へ送出する上下限リミツタと、非定常時には上記演
算器と上記上下限リミツタとを接続し定常運転時には上
記演算器と上記流量制御器と上記上下限リミツタとを接
続する非定常・定常運転切換えスイツチとにより構成し
ている。Further, the liquid level control device for a filling machine of the present invention includes a liquid level detection unit attached to the filling machine, a flow rate detection unit attached to a liquid supply pipe to the filling machine, a filling machine control unit, and a feeding machine to the filling machine. It has a control valve attached to the liquid pipe and a controller, which controls the liquid level detection signal proportional to the liquid level height from the liquid level detection unit and the filling machine operating state from the filling machine control unit. A calculator that calculates the required liquid flow rate to the filling machine based on the detection signal, and a flow rate that calculates the opening of the control valve based on the calculation result of the calculator and the actual liquid flow rate detection signal from the flow rate detection unit. Check whether or not the calculation results of the controller and the same flow rate controller are appropriate, and when the calculation results are below the upper limit value and above the lower limit value set internally, the calculation result is sent to the liquid delivery pipe as an opening signal. It is sent to the attached control valve, and the above calculation results are preset inside When larger than the value is the same upper limit value,
Further, when the calculation result is smaller than a preset lower limit value, the same lower limit value is sent to the control valve as an opening signal and an upper and lower limit limiter, and when it is unsteady, the calculator and the upper and lower limit limiter are connected. It is constituted by an unsteady / steady operation switching switch which connects the above-mentioned computing unit, the above-mentioned flow rate controller, and the above-mentioned upper and lower limit limiter to each other during the steady operation.
（作用） 本発明の充填機の液面制御方法は前記のように構成され
ており、非定常運転時には、充填機に取付けた液面検出
部からの液面高さに比例した液面検出信号と充填機制御
部からの充填機運転状態検出信号とを制御器の演算器へ
送り、ここで充填機への必要送液流量を演算し、その演
算結果を非定常・定常切換えスイツチを経て上下限リミ
ツタへ送り、ここで同必要送液流量の演算結果が適正で
あるか否かをチエツクして、上限リミツタ内に予め設定
した上限値以下及び下限値以上であるときは演算結果を
開度信号として送液配管に取付けたコントロール弁へ送
出し、上記演算結果が上下限リミツタ内に予め設定した
上限値よりも大きいときは同上限値を、また上記演算結
果が上下限リミツタ内に予め設定した下限値よりも小さ
いときは同下限値を、開度信号として上記コントロール
弁へ送出し、定常運転時には、上記演算器の演算結果を
非定常・定常切換えスイツチを経て制御器の流量制御器
へ送るとともに充填機制御器からの充填機運転状態検出
信号を同流量制御器へ送り、ここで上記コントロール弁
の開度を演算し、その演算結果を非定常・定常切換えス
イツチを経て上下限リミツタへ送り、ここでコントロー
ル弁の開度演算結果が適正であるか否かをチエツクし
て、上下限リミツタ内に予め設定した上限値以下及び下
限値以上であるときは演算結果を開度信号として送液配
管に取付けたコントロール弁へ送出し、上記演算結果が
上下限リミツタ内に予め設定した上限値よりも大きいと
きは同上限値を、また上記演算結果が上下限リミツタ内
に予め設定した下限値よりも小さいときは同下限値を、
開度信号として上記コントロール弁へ送出して、充填機
への送液流量を制御する。(Operation) The liquid level control method for the filling machine according to the present invention is configured as described above, and the liquid level detection signal proportional to the liquid level height from the liquid level detection unit attached to the filling machine is provided during the unsteady operation. And the filling machine operating state detection signal from the filling machine control section are sent to the computing unit of the controller, where the required liquid flow rate to the filling machine is calculated, and the calculation result is passed through the unsteady / steady switching switch. Send to the lower limiter, check here whether or not the calculation result of the required liquid supply flow rate is appropriate, and open the calculation result if it is below the upper limit value or above the lower limit value set in advance in the upper limiter. It is sent as a signal to the control valve attached to the liquid sending pipe, and when the above calculation result is larger than the upper limit value preset in the upper and lower limit limiter, the same upper limit value is set, and the above calculation result is preset in the upper and lower limit limiter. If it is less than the lower limit The same lower limit value is sent to the control valve as an opening signal, and during steady operation, the calculation result of the calculator is sent to the flow controller of the controller via the unsteady / steady switching switch and from the filler controller. Send the filling machine operation status detection signal to the same flow rate controller, calculate the opening of the control valve here, and send the calculation result to the upper / lower limit limiter via the unsteady / steady switching switch, and open the control valve here. Check whether the calculation result is appropriate or not, and if it is below the upper limit value or above the lower limit value set in advance in the upper and lower limiters, the calculated result is used as an opening signal to the control valve attached to the liquid supply pipe. When the calculation result is larger than the upper limit value preset in the upper / lower limit limiter, the same upper limit value is output, and the calculation result is lower than the lower limit value preset in the upper / lower limit limiter. The same lower limit value when Sai,
It is sent to the control valve as an opening signal to control the flow rate of liquid sent to the filling machine.
（実施例） 次に本発明の充填機の液面制御方法及び装置を第１図に
示す一実施例により説明すると，(1)が充填機（タン
ク），(2)がフロート，(3)が同フロート(2)の変位伝送
器，(4)がコントロール弁，(5)が充填液を上記充填機
(1)へ送る送液配管，(6)が流量計，(23)が同流量計(6)
からの実送液流量検出信号，(7)がロータリシール，(8)
が上記フロート(2)の変位電送器(3)からの液面検出信
号，(9)が充填機制御部で，同充填機制御部(9)は，充填
機(1)の運転・停止，運転スピード，充填容器（壜）の
容量，充填機(1)内での容器の有無等の充填機(1)の運転
状態を検出して，そのとき得られた充填機運転状態検出
信号(10)を制御器(13)の演算器(16)へ送るようになって
いる。また(14)が同制御器(13)の流量計制御器，(15)が
上下限リミツタ，(17)が上記演算器(16)と上記流量制御
器(14)と上記上下限リミツタ(15)との間で信号の授受を
行う非定常，定常切換スイツチで，上記演算器(16)は，
液面検出信号(8)と充填機運転状態検出信号(10)とに基
づき充填機(1)への必要送液流量或いは充填開始・停止
時のコントロール弁開度を演算する。また上記流量制御
器(14)は，上記演算器(16)で演算された充填機(1)への
必要送液流量と上記流量計(6)で検出された実送液流量
検出信号(23)とによりコントロール弁(4)の必要開度を
演算する。また上記上下限リミツタ(15)は，流量制御器
(14)或いは演算器(16)で演算された演算結果が適正であ
るか否かをチエツクして，適正であれば，コントロール
弁(4)へコントロール弁開度(18)を出力する。(Embodiment) Next, a liquid level control method and apparatus for a filling machine according to the present invention will be described with reference to one embodiment shown in FIG. 1. (1) is a filling machine (tank), (2) is a float, (3) Is a displacement transmitter of the same float (2), (4) is a control valve, and (5) is a filling liquid for the above filling machine.
Liquid delivery pipe to send to (1), (6) flow meter, (23) same flow meter (6)
Actual liquid flow rate detection signal from (7) is rotary seal, (8)
Is a liquid level detection signal from the displacement transmitter (3) of the float (2), (9) is a filling machine control unit, and the same filling machine control unit (9) operates / stops the filling machine (1), The operating condition of the filling machine (1) such as the operating speed, the capacity of the filling container (bottle), the presence or absence of the container in the filling machine (1), etc. is detected, and the operating condition detection signal (10) of the filling machine obtained at that time is detected. ) Is sent to the arithmetic unit (16) of the controller (13). Further, (14) is a flow meter controller of the same controller (13), (15) is an upper / lower limit limiter, (17) is the calculator (16), the flow controller (14), and the upper / lower limit limiter (15). ) Is a non-steady-state, steady-state switching switch that sends and receives signals to and from
Based on the liquid level detection signal (8) and the filling machine operating state detection signal (10), the required liquid flow rate to the filling machine (1) or the control valve opening at the time of starting / stopping the filling is calculated. Further, the flow rate controller (14) is provided with a required liquid flow rate to the filling machine (1) calculated by the arithmetic unit (16) and an actual liquid flow rate detection signal (23) detected by the flow meter (6). ) Calculates the required opening of the control valve (4). The upper and lower limiter (15) above is a flow controller.
(14) Or, it is checked whether the calculation result calculated by the calculator (16) is proper, and if it is proper, the control valve opening (18) is output to the control valve (4).
次に前記第１図に示す充填機の液面制御装置の作用を具
体的に説明する。充填機(1)が定常運転の状態にあると
きには，演算器(16)が変位伝送器(3)からの液面検出信
号(8)と充填器制御部(9)からの充填機運転状態検出信号
(10)とにより必要送液流量SVを次式により演算する。Next, the operation of the liquid level control device of the filling machine shown in FIG. 1 will be specifically described. When the filling machine (1) is in the steady operation state, the computing unit (16) detects the liquid level detection signal (8) from the displacement transmitter (3) and the filling machine operation state from the filling machine control unit (9). signal
Calculate the required liquid delivery flow rate SV from (10) using the following equation.
SV＝Ｒ・Ｖ−Ｋ（Ｈ−H0）Ａ・・・・・・ ここで，Ｒは充填機の運転スピード，Ｖは充填容器１個
当たりの充填容量，Ｋは充填機の運転スピード及び充填
容器１個当たりの充填容量から決定される定数，Ｈは充
填機の実液面高さ，H0は充填機の設定液面高さ，Ａは充
填機（タンク）の平均断面積である。SV = R · V−K (H−H 0 ) A ... where R is the operating speed of the filling machine, V is the filling capacity per filling container, K is the operating speed of the filling machine and A constant determined from the filling capacity per filling container, H is the actual liquid level of the filling machine, H 0 is the set liquid level of the filling machine, and A is the average cross-sectional area of the filling machine (tank). .
また流量制御器(14)が上記式により演算された必要送
液流量SVを目標値とし，流量計(6)からの実送液流量検
出信号(23)を測定値として，コントロール弁(4)の開度
を演算する。The flow controller (14) uses the required liquid flow rate SV calculated by the above equation as the target value, and the actual liquid flow rate detection signal (23) from the flow meter (6) as the measured value, and the control valve (4) Calculate the opening degree of.
また充填開始時及び停止時等の非定常運転時には，演算
器(16)が充填機の運転スピードと容器１個当たりの充填
容量とにより，コントロール弁(4)の開度を制御器(13)
に予め設定した設定値になるように演算する。Further, during unsteady operation such as starting and stopping of filling, the calculator (16) controls the opening degree of the control valve (4) by the operating speed of the filling machine and the filling capacity per container.
Calculation is performed so that the set value set in advance is obtained.
また非定常運転状態から定常運転状態への切り換えは，
第２図に示すように非定常時に演算器(16)で演算された
コントロール弁(4)の開度と，定常運転時に流量制御器
(14)で演算されたコントロール弁(4)の開度との差が，
一定時間T1以上，或る偏差ΔＥ以内にあることを制御器
(13)で判断し，非定常，定常切換スイツチ(17)を切り換
えることにより行う。なお定常運転時には，非定常，定
常切換スイツチ(17)が第１図のａ位置にあり，非定常運
転時には、スイツチ(17)が第１図のｂ位置にある。Switching from the unsteady operating state to the steady operating state is
As shown in Fig. 2, the opening of the control valve (4) calculated by the calculator (16) during unsteady state and the flow rate controller during steady state operation.
The difference from the opening of the control valve (4) calculated in (14) is
The controller must be within a certain deviation ΔE for a certain time T 1 or more.
Judgment is made in (13), and switching is performed by switching the non-steady / steady switching switch (17). During steady operation, the unsteady / steady switching switch (17) is in the position a in FIG. 1, and during unsteady operation, the switch (17) is in position b in FIG.
以上の要領で得られたコントロール弁(4)の開度値は，
上下限リミツタ(15)により充填機の運転スピード及び容
器１個当たりの充填容により演算された適正なコントロ
ール弁(4)の開度値であるか否かがチエツクされ，開度
値が上下限リミツタ(15)内に予め設定した上限値以下及
び下限値以上であるときは開度値を開度信号としてコン
トロール弁(4)へ送出し、開度値が上下限リミツタ(15)
内に予め設定した上限値よりも大きいときは同上限値
を、開度値が上限リミツタ(15)内に予め設定した下限値
よりも小さいときは同下限値を、開度信号としてコント
ロール弁(4)へ送出する。The opening value of the control valve (4) obtained by the above procedure is
The upper and lower limiter (15) checks whether or not it is the appropriate opening value of the control valve (4) calculated from the operating speed of the filling machine and the filling volume per container, and the opening value is set to the upper and lower limits. When it is below the upper limit value and above the lower limit value set in advance in the limiter (15), the opening value is sent to the control valve (4) as an opening signal, and the opening value is set to the upper and lower limiter (15).
If the opening value is smaller than the lower limit value preset in the upper limit limiter (15), the same upper limit value is set as the opening signal when the control valve ( Send to 4).
なお流量制御器(14)上下限リミツタ(15)演算器(16)スイ
ツチ(17)は，制御器(13)と別の外部機器を使用してもよ
い。また非定常運転から定常運転に入るとき，第３図に
示すように充填停止直前のコントロール弁開度を記憶し
ておき，再び充填を開始したとき，その記憶していた開
度にコントロール弁(4)を開いて，定常運転に入るよう
にしてもよいい。また充填機(1)内の液面高さの検出に
は，フロート(2)を有する伝送器(3)以外に，電気式レベ
ルスイツチのように液面高さに比例した検出信号を送出
するもに変えてもよい。The flow controller (14) upper / lower limit limiter (15) computing unit (16) switch (17) may use an external device different from the controller (13). Further, when the operation is changed from the unsteady operation to the steady operation, the control valve opening just before the stop of the filling is stored as shown in FIG. 3, and when the filling is started again, the control valve ( You may open 4) and start steady operation. Further, in order to detect the liquid level inside the filling machine (1), a detection signal proportional to the liquid level like an electric level switch is sent in addition to the transmitter (3) having the float (2). You can change to anything.
（発明の効果） 本発明の充填機の液面制御方法は前記のように構成され
ており、非定常運転時には、充填機に取付けた液面検出
部からの液液面高さに比例した液面検出信号と充填機制
御部からの充填機運転状態検出信号とを制御器の演算器
へ送り、ここで充填機への必要送液流量を演算し、その
演算結果を非定常・定常切換えスイツチを経て上下限リ
ミツタへ送り、ここで同必要送液流量の演算結果が適正
であるか否かをチエツクして、上下限リミツタ内に予め
設定した上限値以下及び下限値以上であるときは演算結
果を開度信号として送液配管に取付けたコントロール弁
へ送出し、上記演算結果が上下限リミツタ内に予め設定
した上限値よりも大きいときは同上限値を、また上記演
算結果が上下限リミツタ内に予め設定した下限値よりも
小さいときは同下限値を、開度信号として上記コントロ
ール弁へ送出し、定常運転時には、上記演算器の演算結
果を非定常・定常切換スイツチを経て制御器の流量制御
器へ送るとともに充填機制御器からの充填機運転状態検
出信号を同流量制御器へ送り、ここで上記コントロール
弁の開度を演算し、その演算結果を非定常・定常切換え
スイツチを経て上下限リミツタへ送り、ここでコントロ
ール弁の開度演算結果が適正であるか否かをチエツクし
て、上下限リミツタ内に予め設定した上限値以下及び下
限値以上であるときは演算結果を開度信号として送液配
管に取付けたコントロール弁へ送出し、上記演算結果が
上下限リミツタ内に予め設定した上限値よりも大きいと
きは同上限値を、また上記演算結果が上下限リミツタ内
に予め設定した下限値よりも小さいときは同下限値を、
開度信号として上記コントロール弁へ送出して、充填機
への送液流量を制御するので、充填機への送液量を無段
階に制御でき、ハンチングのない送液量量制御が可能
で、充填機内の液面変動が小さくできる。(Effect of the Invention) The liquid level control method for a filling machine of the present invention is configured as described above, and during unsteady operation, the liquid level proportional to the liquid level from the liquid level detection unit attached to the filling machine is used. The surface detection signal and the filling machine operating state detection signal from the filling machine control section are sent to the calculator of the controller, where the required liquid flow rate to the filling machine is calculated, and the calculation result is switched to the unsteady / steady state switch. To the upper / lower limit limiter, and check here whether or not the calculation result of the required liquid flow rate is appropriate, and if it is below the upper limit value or above the lower limit value preset in the upper / lower limit limiter, calculate The result is sent as an opening signal to a control valve attached to the liquid sending pipe, and if the above calculation result is larger than the upper limit value set in advance in the upper and lower limiter, the same upper limit value is set, and the above calculation result is the upper and lower limit limiter. Less than the lower limit set in advance If this is the case, the same lower limit value is sent to the control valve as an opening signal, and during steady operation, the calculation result of the above computing unit is sent to the flow rate controller of the controller via the unsteady / steady switching switch and the filling machine control is performed. The operation signal of the filling machine from the container is sent to the same flow rate controller, the opening of the control valve is calculated here, and the calculation result is sent to the upper and lower limiter via the unsteady / steady switching switch and controlled here. Check whether or not the valve opening calculation result is appropriate, and if it is below the upper limit value or above the lower limit value preset in the upper and lower limiter, the calculation result is attached to the liquid delivery pipe as an opening signal. When it is sent to the control valve and the above calculation result is larger than the upper limit value set in the upper and lower limit limiters, the same upper limit value is set, and the above calculation result is the lower limit set in the upper and lower limit limiters in advance. The same lower limit is smaller than,
As the opening signal is sent to the control valve to control the flow rate of the liquid to be fed to the filling machine, the amount of liquid to be fed to the filling machine can be controlled steplessly, and the amount of liquid to be fed can be controlled without hunting. The liquid level fluctuation in the filling machine can be reduced.
また上記のように充填機への実送液量を検出して、充填
機への送液量を制御するので、送液配管の送液抵抗の変
動に基づいて発生していた充填機内の液面変動を小さく
できる。Moreover, since the actual amount of liquid delivered to the filling machine is detected as described above and the amount of liquid delivered to the filling machine is controlled, the liquid in the filling machine that was generated based on the variation in the liquid delivery resistance of the liquid delivery pipe. Surface variation can be reduced.
また上記のように充填機内の液面の設定を充填機制御部
により行えばよくて、充填機の液面高さを容易に変更で
きる。Further, the liquid level in the filling machine may be set by the filling machine control unit as described above, and the liquid level of the filling machine can be easily changed.
また従来のように圧力スイツチ、エアレギユレータ等を
使用せず、容器の品種が変わる毎に必要としていた圧力
スイツチ、エアレギユレータ等での圧力調整動作を不要
にできる。Further, unlike the conventional case, the pressure switch, the air regulator, etc. are not used, and the pressure adjustment operation by the pressure switch, the air regulator, etc., which is required every time the type of the container changes, can be eliminated.
また非定常時・定常切換えスイツチにより、非定常運転
時には、制御器の演算器と上下限リミツタとを接続し、
定常運転時には、制御器の演算器と流量制御器と上限リ
ミツタとを接続するので、それぞれに適した制御を容易
に選択できる。Also, during non-steady state, the switch of the controller and the upper and lower limit limiter are connected during non-steady state by the switch for non-steady state / steady state switching.
At the time of steady operation, the arithmetic unit of the controller, the flow rate controller, and the upper limit limiter are connected, so that the control suitable for each can be easily selected.
また本発明の充填機の液面制御装置は、充填機に取付け
た液面検出部と、充填機への送液配管に取付けた流量検
出部と、充填機制御部と、充填機への送液配管に取付け
たコントロール弁と、制御器とを有し、同制御器を、上
記液面検出部からの液面高さに比例した液面検出信号と
上記充填機制御部から充填機運転状態検出信号とにより
充填機への必要送液流量を演算する演算器と、同演算器
の演算結果と上記流量検出部からの実送液流量検出信号
とにより上記コントロール弁の開度を演算する流量制御
器と、同流量制御器の演算結果が適正であるか否かをチ
エツクして、内部に予め設定した上限値以下及び下限値
以上であるときは演算結果を開度信号として送液配管に
取付けたコントロール弁へ送出し、上記演算結果が内部
に予め設定した上限値よりも大きいときは同上限値を、
また上記演算結果が内部に予め設定した下限値よりも小
さいときは同下限値を、開度信号として上記コントロー
ル弁へ送出する上下限リミツタと、非定常時には上記演
算器と上記上下限リミツタとを接続した定常運転時には
上記演算器と上記流量制御器と上記上下限リミツタとを
接続する非定常・定常運転切換えスイツチとにより構成
しており、前記充填機の液面制御方法を円滑に実施でき
る。Further, the liquid level control device for a filling machine of the present invention includes a liquid level detection unit attached to the filling machine, a flow rate detection unit attached to a liquid supply pipe to the filling machine, a filling machine control unit, and a feeding machine to the filling machine. It has a control valve attached to the liquid pipe and a controller, which controls the liquid level detection signal proportional to the liquid level height from the liquid level detection unit and the filling machine operating state from the filling machine control unit. A calculator that calculates the required liquid flow rate to the filling machine based on the detection signal, and a flow rate that calculates the opening of the control valve based on the calculation result of the calculator and the actual liquid flow rate detection signal from the flow rate detection unit. Check whether or not the calculation results of the controller and the same flow rate controller are appropriate, and when the calculation results are below the upper limit value and above the lower limit value set internally, the calculation result is sent to the liquid delivery pipe as an opening signal. It is sent to the attached control valve, and the above calculation results are preset inside When larger than the value is the same upper limit value,
Further, when the above calculation result is smaller than the lower limit value set inside beforehand, the same lower limit value is sent to the control valve as an opening signal, and the upper and lower limit limiter which sends it to the control valve, and when it is unsteady In the connected steady operation, the operation unit, the flow rate controller, and the unsteady / steady operation switching switch that connects the upper / lower limit limiter are connected, and the liquid level control method of the filling machine can be smoothly implemented.
【図面の簡単な説明】 第１図は本発明に係わる充填機の液面制御方法の実施に
使用する液面制御装置の一実施例を示す系統図，第２図
及び第３図はその作用説明図，第４図は従来の充填機の
液面制御装置を示す系統図である。 (1)……充填機，(2),(3)……液面検出部，(8)……液面
検出信号，(4)……コントロール弁，(5)……送液配管，
(6)……流量検出部，(23)……実送液流量検出信号，(9)
……充填機制御部，(10)……充填機運転状態検出信号，
(13)……制御器、(14)……流量制御器、(15)……上下限
リミツタ、(16)……演算器、(17)……非定常・定常切換
スイツチ、(18)……コントロール弁開度信号。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a system diagram showing one embodiment of a liquid level control device used for carrying out the liquid level control method for a filling machine according to the present invention, and FIGS. 2 and 3 show its operation. FIG. 4 and FIG. 4 are system diagrams showing a liquid level control device for a conventional filling machine. (1) …… Filling machine, (2), (3) …… Liquid level detector, (8) …… Liquid level detection signal, (4) …… Control valve, (5) …… Liquid supply pipe,
(6) …… Flow rate detector, (23) …… Actual liquid flow rate detection signal, (9)
…… Filler control unit, (10) …… Filler operating status detection signal,
(13) …… Controller, (14) …… Flow controller, (15) …… Upper / lower limit limiter, (16) …… Calculator, (17) …… Unsteady / steady state switching switch, (18)… … Control valve opening signal.
Claims (2)
検出部からの液面高さに比例した液面検出信号と充填機
制御部からの充填機運転状態検出信号とを制御器の演算
器へ送り、ここで充填機への必要送液流量を演算し、そ
の演算結果を非定常・定常切換えスイツチを経て上下限
リミツタへ送り、ここで同必要送液流量の演算結果が適
正であるか否かをチエツクして、上下限リミツタ内に予
め設定した上限値以下及び下限値以上であるときは演算
結果を開度信号として送液配管に取付けたコントロール
弁へ送出し、上記演算結果が上下限リミツタ内に予め設
定した上限値よりも大きいときは同上限値を、また上記
演算結果が上下限リミツタ内に予め設定した下限値より
も小さいときは同下限値を、開度信号として上記コント
ロール弁へ送出し、定常運転時には、上記演算器の演算
結果を非定常・定常切換えスイツチを経て制御器の流量
制御器へ送るとともに充填機制御器からの充填機運転状
態検出信号を同流量制御器へ送り、ここで上記コントロ
ール弁の開度を演算し、その演算結果を非定常・定常切
換えスイツチを経て上下限リミツタへ送り、ここでコン
トロール弁の開度演算結果が適正であるか否かをチエツ
クして、上下限リミツタ内に予め設定した上限値以下及
び下限値以上であるときは演算結果を開度信号として送
液配管に取付けたコントロール弁へ送出し、上記演算結
果が上下限リミツタ内に予め設定した上限値よりも大き
いときは同上限値を、また上記演算結果が上下限リミツ
タ内に予め設定した下限値よりも小さいときは同下限値
を、開度信号として上記コントロール弁へ送出して、充
填機への送液流量を制御することを特徴とした充填機の
液面制御方法。1. At the time of unsteady operation, a liquid level detection signal proportional to a liquid level height from a liquid level detection unit attached to a filling machine and a filling machine operating state detection signal from a filling machine control unit are sent to the controller. Send to the calculator, calculate the required liquid flow rate to the filling machine, and send the calculation result to the upper / lower limit limiter via the unsteady / steady state switching switch. Check whether or not there is, and when it is below the upper limit value and above the lower limit value set in advance in the upper and lower limiter, send the calculation result as an opening signal to the control valve attached to the liquid delivery pipe, and the above calculation result Is greater than the preset upper limit in the upper and lower limit limiter, the same upper limit value, when the above calculation result is less than the preset lower limit value in the upper and lower limit limiter, the same lower limit value as the opening signal Send to the above control valve During steady operation, the calculation result of the above arithmetic unit is sent to the flow rate controller of the controller via the unsteady / steady state switching switch, and at the same time, the filling machine operating state detection signal from the filling machine controller is sent to the same flow rate controller. The control valve opening is calculated, and the calculation result is sent to the upper / lower limit limiter via the unsteady / steady state switching switch, where it is checked whether the control valve opening calculation result is proper or not. When the value is below the preset upper limit value or above the lower limit value in the lower limiter, it sends the calculation result as an opening signal to the control valve installed in the liquid supply pipe, and the calculation result is the upper limit set in the upper and lower limiters. If it is larger than the above value, the same upper limit value is used.If the above calculation result is smaller than the lower limit value preset in the upper and lower limit limiter, the same lower limit value is used as the opening signal. And sent to the valve, liquid level control method of the filling machine is characterized in that controlling the liquid feed flow to the filling machine.
の送液配管に取付けた流量検出部と、充填機制御部と、
充填機への送液配管に取付けたコントロール弁と、制御
器とを有し、同制御器を、上記液面検出部からの液面高
さに比例した液面検出信号と上記充填機制御部から充填
機運転状態検出信号とにより充填機への必要送液流量を
演算る演算器と、同演算器の演算結果と上記流量検出部
からの実送液流量検出信号とにより上記コントロール弁
の開度を演算する流量制御器と、同流量制御器の演算結
果が適正であるか否かをチエツクして、内部に予め設定
した上限値以下及び下限値以上であるときは演算結果を
開度信号として送液配管に取付けたコントロール弁へ送
出し、上記演算結果が内部に予め設定した上限値よりも
大きいときは同上限値を、また上記演算結果が内部に予
め設定した下限値よりも小さいときは同下限値を、開度
信号として上記コントロール弁へ送出する上下限リミツ
タと、非定常時には上記演算器と上記上下限リミツタと
を接続し定常運転時には上記演算器と上記流量制御器と
上記上下限リミツタとを接続する非定常・定常運転切換
えスイツチとにより構成したことを特徴とする充填機の
液面制御装置。2. A liquid level detection unit attached to the filling machine, a flow rate detection unit attached to a liquid feed pipe to the filling machine, and a filling machine control unit.
It has a control valve attached to the liquid supply pipe to the filling machine and a controller, and the controller is provided with a liquid level detection signal proportional to the liquid level height from the liquid level detection section and the filling machine control section. From the filling machine operating state detection signal to calculate the required liquid flow rate to the filling machine, and to open the control valve based on the calculation result of the calculator and the actual liquid flow rate detection signal from the flow rate detection unit. Check the flow rate controller that calculates the degree and whether or not the calculation result of the flow rate controller is appropriate, and if it is below the upper limit value or above the lower limit value set internally, the calculation result is the opening signal. When the above calculation result is larger than the preset upper limit value, the same upper limit value is set, and when the calculation result is smaller than the preset lower limit value, Is the same lower limit value as the opening signal Unsteady / steady operation in which the upper / lower limit limiter sent to the trawl valve is connected to the above computing unit and the above upper / lower limit limiter in the unsteady state, and the above computing unit, the flow rate controller and the upper / lower limit limiter are connected in the steady operation. A liquid level control device for a filling machine, which is configured by a switching switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61009884A JPH0659916B2 (en) | 1986-01-22 | 1986-01-22 | Liquid level control method and apparatus for filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61009884A JPH0659916B2 (en) | 1986-01-22 | 1986-01-22 | Liquid level control method and apparatus for filling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62168896A JPS62168896A (en) | 1987-07-25 |
| JPH0659916B2 true JPH0659916B2 (en) | 1994-08-10 |
Family
ID=11732574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61009884A Expired - Fee Related JPH0659916B2 (en) | 1986-01-22 | 1986-01-22 | Liquid level control method and apparatus for filling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659916B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285120A (en) * | 1988-09-19 | 1990-03-26 | Toppan Printing Co Ltd | Aseptic packaging apparatus |
| JP2767874B2 (en) * | 1989-04-11 | 1998-06-18 | 澁谷工業株式会社 | Filling amount adjusting device of filling device |
| DE102016107622A1 (en) * | 2016-04-25 | 2017-10-26 | Khs Gmbh | Method for controlling a beverage filling plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890096A (en) * | 1981-11-24 | 1983-05-28 | 三菱重工業株式会社 | Controller for surface of liquid of rotary type filling machine |
-
1986
- 1986-01-22 JP JP61009884A patent/JPH0659916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62168896A (en) | 1987-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |