JPH09156697A - Flow rate control type charging method - Google Patents
Flow rate control type charging methodInfo
- Publication number
- JPH09156697A JPH09156697A JP31805895A JP31805895A JPH09156697A JP H09156697 A JPH09156697 A JP H09156697A JP 31805895 A JP31805895 A JP 31805895A JP 31805895 A JP31805895 A JP 31805895A JP H09156697 A JPH09156697 A JP H09156697A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- tank
- filling
- container
- upstream side
- 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.)
- Granted
Links
Landscapes
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、液体を容器内へ充
填する液体充填機に適用する流量制御式充填方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate control type filling method applied to a liquid filling machine for filling a liquid into a container.
【0002】[0002]
【従来の技術】貯液タンクに貯えた液体を配管を経て容
器方向に導くとともに、同配管の途中に設けた開閉弁を
開いて、液体圧により液体を容器内へ充填する液体の充
填機において、前記開閉弁の上流側の液体圧力を測定
し、この測定結果と予め記憶している圧力−充填時間関
数とにより、充填時間を演算し、この演算結果に応じて
前記開閉弁を開く液体充填機は、従来公知である。2. Description of the Related Art In a liquid filling machine for guiding a liquid stored in a liquid storage tank toward a container through a pipe and opening an on-off valve provided in the middle of the pipe to fill the liquid into the container by liquid pressure. , The liquid pressure on the upstream side of the on-off valve is measured, the filling time is calculated by the measurement result and the pressure-filling time function stored in advance, and the liquid filling for opening the on-off valve according to the calculation result Machines are conventionally known.
【0003】その概略を図4により説明すると、1が圧
力タンクで、同圧力タンク1に元液2が貯えられ、同圧
力タンク1には、配管3から高圧クリーンエアが供給さ
れ、同配管3には、圧力調整弁4が取付けられ、圧力タ
ンク1内の圧力が略一定に保持されている。圧力タンク
1からは導管5により密閉式サービスタンク6へ元液2
が導かれる。そして密閉式サービスタンク6の下流側に
は、導管7と分配管8と、ニードル弁9と導管10と充
填ノズル11とが接続されている。An outline thereof will be described with reference to FIG. 4. Reference numeral 1 is a pressure tank, in which the source liquid 2 is stored, and high pressure clean air is supplied from the pipe 3 to the pressure tank 1, and the same pipe 3 is supplied. A pressure adjusting valve 4 is attached to the pressure tank 1, and the pressure in the pressure tank 1 is kept substantially constant. From the pressure tank 1 to the closed service tank 6 via the conduit 5
Is led. A conduit 7, a distribution pipe 8, a needle valve 9, a conduit 10 and a filling nozzle 11 are connected to the downstream side of the closed service tank 6.
【0004】ニードル弁9は、各充填ノズル11から吐
出される液体流量を一定に調整するために設けられてい
る。導管10は、ゴム管等の柔らかい材料により作られ
ており、導管10を固定押枠12と移動押枠13とで挟
みつけることにより、導管10は管路が閉じられる。即
ち、導管10と固定押枠12と移動押枠13とにより開
閉弁が構成されている。The needle valve 9 is provided to adjust the flow rate of the liquid discharged from each filling nozzle 11 to a constant value. The conduit 10 is made of a soft material such as a rubber tube, and the conduit 10 is closed by sandwiching the conduit 10 between the fixed push frame 12 and the movable push frame 13. That is, the conduit 10, the fixed push frame 12, and the movable push frame 13 constitute an open / close valve.
【0005】移動押枠13はエアシリンダ14に接続し
ており、同エアシリンダ14には、電磁弁16を介して
高圧空気源15が接続している。エアシリンダ14は、
ばね復帰式のものであって、電磁弁16が開かれれば、
高圧空気源15からの高圧空気がエアシリンダ14へ送
られ、同エアシリンダ14が伸長方向に作動して、各導
管10が閉じる。また電磁弁16が閉じれば、エアシリ
ンダ14がばねにより縮み方向に作動して、各導管10
が開くようになっている。The movable push frame 13 is connected to an air cylinder 14, and a high pressure air source 15 is connected to the air cylinder 14 via an electromagnetic valve 16. The air cylinder 14 is
If it is a spring return type and the solenoid valve 16 is opened,
High-pressure air from the high-pressure air source 15 is sent to the air cylinder 14, the air cylinder 14 operates in the extension direction, and each conduit 10 is closed. When the solenoid valve 16 is closed, the air cylinder 14 is actuated in the contracting direction by the spring, and each conduit 10
Is designed to open.
【0006】電磁弁16は、制御装置17により制御さ
れ、制御装置17には、密閉式サービスタンク6の圧力
を検出する圧力検出器(圧力/電気変換器)18からの
検出信号が入力される。そして制御装置17は、図5に
示す手順により電磁弁16を制御する。次に前記図4に
示す液体充填機の充填動作を具体的に説明する。The solenoid valve 16 is controlled by a control device 17, and a detection signal from a pressure detector (pressure / electric converter) 18 for detecting the pressure of the sealed service tank 6 is input to the control device 17. . Then, the control device 17 controls the solenoid valve 16 by the procedure shown in FIG. Next, the filling operation of the liquid filling machine shown in FIG. 4 will be specifically described.
【0007】通常、電磁弁16は開き、導管10は閉じ
ている。このとき、圧力検出器(圧力/電気変換器)1
8によりサービスタンク6内の圧力6内の圧力Pを検出
して、電気信号に変換し、これを制御装置17のA/D
変換器19(図5参照)によりデジタル信号Pnに変換
して、演算回路20へ送る。この演算回路20は、種々
な圧力Pnに対して一定の充填量を得るための充填時間
f(Pn)を設定する数表を内蔵している。この圧力P
n−充填時間f(Pn)の関係は、予め実験、計算等に
より求められて、演算回路20に入力されている。Normally, the solenoid valve 16 is open and the conduit 10 is closed. At this time, the pressure detector (pressure / electric converter) 1
The pressure P in the service tank 6 is detected by 8 and converted into an electric signal, and this is converted into an A / D of the control device 17.
It is converted into a digital signal Pn by the converter 19 (see FIG. 5) and sent to the arithmetic circuit 20. The arithmetic circuit 20 has a built-in mathematical table for setting a filling time f (Pn) for obtaining a constant filling amount for various pressures Pn. This pressure P
The relationship of n-filling time f (Pn) is obtained in advance by experiments, calculations, etc. and is input to the arithmetic circuit 20.
【0008】充填されるべき容器が充填ノズル11の下
方へ搬送され、充填ノズル11が下降して、液体注入の
準備が完了すると、充填機から充填開始指令21が発せ
られる。この充填開始指令21は、演算回路20及びタ
イマー23へ送られ、演算回路20が演算を開始すると
ともに、タイマー23がカウントを開始する。また同充
填開始指令21は、弁操作装置24へ閉信号として送ら
れて、電磁弁16が閉じ、エアシリンダ14がばねによ
り縮み方向に作動して、導管10が開いて、液体の充填
が開始される。When the container to be filled is conveyed below the filling nozzle 11 and the filling nozzle 11 descends and the preparation for liquid injection is completed, a filling start command 21 is issued from the filling machine. The filling start command 21 is sent to the arithmetic circuit 20 and the timer 23, and the arithmetic circuit 20 starts arithmetic and the timer 23 starts counting. Further, the filling start command 21 is sent to the valve operating device 24 as a closing signal, the electromagnetic valve 16 is closed, the air cylinder 14 is operated in the contracting direction by the spring, the conduit 10 is opened, and the filling of the liquid is started. To be done.
【0009】演算回路20は、入力した圧力信号Pnか
ら充填時間f(Pn)を求めて、これをレジスター22
へ送る。レジスター22は、充填時間f(Pn)をタイ
マー23へ送って、充填時間f(Pn)をタイマー23
に設定する。タイマー23は、設定された充填時間f
(Pn)をカウントすると、弁操作装置24へ弁開信号
を送って、電磁弁16を開き、高圧空気源15からの高
圧空気をエアシリンダ14へ送って、同エアシリンダ1
4を伸長方向に作動し、導管10を閉じて、液体の容器
への注入を終了する。The arithmetic circuit 20 obtains the filling time f (Pn) from the input pressure signal Pn and stores it in the register 22.
Send to The register 22 sends the filling time f (Pn) to the timer 23, and the filling time f (Pn) is sent to the timer 23.
Set to. The timer 23 has a set filling time f.
When (Pn) is counted, a valve open signal is sent to the valve operating device 24 to open the solenoid valve 16, and high pressure air from the high pressure air source 15 is sent to the air cylinder 14 so that the air cylinder 1
4 is actuated in the extension direction and the conduit 10 is closed, ending the injection of liquid into the container.
【0010】[0010]
【発明が解決しようとする課題】前記図4、図5に示す
従来の液体充填機では、各ニードル弁9により、各充填
ノズル11の吐出流量を一定になるように調節し、開閉
弁10、12、13により、各導管10を一斉に開閉す
るようになっており、個々の容器へ流れる液体(製品
液)を計量していないので、各導管10を構成している
柔らかい材料が変質して固化したり、液体から溶けたも
のが晶出したりして、流路抵抗が変化したとき、ニード
ル弁9により調整しなければならない。また圧力制御を
確実に行わないと、流量コントロールが困難になるの
で、精密高価な圧力制御弁を必要としている。In the conventional liquid filling machine shown in FIGS. 4 and 5, each needle valve 9 adjusts the discharge flow rate of each filling nozzle 11 to be constant, and the opening / closing valve 10, Since the conduits 10 and 12 are simultaneously opened and closed by 12 and 13, and the liquid (product liquid) flowing to each container is not measured, the soft material forming each conduit 10 is deteriorated. When the flow path resistance changes due to solidification or crystallization of the melted material from the liquid, the needle valve 9 must be used for adjustment. Further, if pressure control is not performed reliably, it becomes difficult to control the flow rate, so a precise and expensive pressure control valve is required.
【0011】また電磁弁16を開いて、高圧空気源15
からの高圧空気をエアシリンダ14へ送り、同エアシリ
ンダ14を伸長方向に作動して、各導管10を閉じ、ま
た電磁弁16を閉じ、エアシリンダ14をばねにより縮
み方向に作動して、各導管10を開くようにしているの
で、充填動作の立ち上げ時のような過度期(低速運転
時)や容器の歯抜け等の非定常運転時に、液体(充填
液)に流速変化があると、管路抵抗が変化するので、液
圧が変動して、流量コントロールが不確実になるという
問題があった。Further, the solenoid valve 16 is opened and the high pressure air source 15 is opened.
High pressure air from the air cylinder 14 is sent to the air cylinder 14, the air cylinder 14 is operated in the extending direction to close each conduit 10, the solenoid valve 16 is closed, and the air cylinder 14 is operated in the contracting direction by a spring. Since the conduit 10 is opened, if the liquid (filling liquid) changes in flow rate during a transient period (during low-speed operation) such as when starting up the filling operation or during unsteady operation such as tooth loss of the container, Since the conduit resistance changes, the liquid pressure fluctuates, and the flow rate control becomes uncertain.
【0012】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、容器内への液体の充填
精度を向上でき、サニテーション作業を容易に行うこ
とができ、設備コストを低減できる流量制御式充填方
法を提供しようとする点にある。The present invention is proposed in view of the above-mentioned problems, and an object thereof is to improve the accuracy of filling a liquid in a container, to easily perform a sanitation work, and to reduce equipment costs. The present invention aims to provide a flow control type filling method capable of reducing the flow rate.
【0013】[0013]
【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、本発明は、貯液タンクに貯えた液体を配管を経て
容器方向に導くとともに、同配管の途中に設けた開閉弁
を開いて、液体圧により液体を容器内へ充填する液体の
充填方法において、前記配管の途中に大気に開放した充
填液タンクを設け、上端部を堰とする仕切板により同充
填液タンクの内部をタンク内上流側とタンク内下流側と
に仕切って、同タンク内上流側を前記貯液タンク側の供
給配管に連通し、同タンク内上流側と同タンク内下流側
とを同仕切板に設けた貫通孔により連通し、同タンク内
下流側を排出配管に連通し、同排出配管の下流側に複数
の充填ノズルを接続し、前記貯液タンクの液体を前記供
給配管を経て前記充填液タンクのタンク内上流側へ供給
し、同タンク内上流側に設置した液レベルセンサからの
検出信号を前記供給配管に設けた流量調整弁へ送り、同
流量制御弁を制御して、同タンク内上流側の液レベルを
適当な範囲に調整するとともに、同タンク内上流側の液
体を前記貫通孔を経て前記タンク内下流側へ絶えず送り
込んで仕切板上端部の堰からタンク内上流側へ溢流させ
ることにより充填液圧ヘッドの上限高さを一定に維持す
る一方、前記各充填ノズルへの分岐配管のそれぞれに設
けた流量計からの検出信号を制御ユニットへ送り、ここ
で容器に充填する液体の充填時間を算定して、その結果
を前記各充填ノズルへの分岐配管のそれぞれに設けた開
閉弁へ送り、同各開閉弁を開閉して、容器に一定量の液
体を充填することを特徴している(請求項1)。In order to achieve the above-mentioned object, the present invention guides the liquid stored in a liquid storage tank toward a container through a pipe and opens an on-off valve provided in the middle of the pipe. In the liquid filling method of filling a liquid into a container by liquid pressure, a filling liquid tank opened to the atmosphere is provided in the middle of the pipe, and the inside of the filling liquid tank is filled with a partition plate having an upper end as a weir. The upstream side of the tank and the downstream side of the tank are partitioned, the upstream side of the tank is connected to the supply pipe on the side of the storage tank, and the upstream side of the inside of the tank and the downstream side of the inside of the tank are provided on the partition plate. Communication through the through hole, the downstream side in the same tank is connected to the discharge pipe, a plurality of filling nozzles are connected to the downstream side of the same discharge pipe, and the liquid in the liquid storage tank is connected to the filling liquid tank through the supply pipe. Supply to the upstream side in the tank and above the same tank Send the detection signal from the liquid level sensor installed on the side to the flow rate adjusting valve provided in the supply pipe, control the flow rate control valve, and adjust the liquid level on the upstream side in the tank to an appropriate range, The upper limit height of the filling hydraulic head is made constant by constantly feeding the liquid on the upstream side in the tank through the through hole to the downstream side in the tank and overflowing it from the weir at the upper end of the partition plate to the upstream side in the tank. While maintaining, send a detection signal from the flow meter provided in each branch pipe to each of the filling nozzles to the control unit, calculate the filling time of the liquid to be filled in the container, and then calculate the result. It is characterized in that it is sent to an on-off valve provided in each of the branch pipes to the nozzle, and each on-off valve is opened and closed to fill the container with a certain amount of liquid (claim 1).
【0014】前記請求項1記載の流量制御式充填方法に
おいて、各充填ノズル側排出配管のそれぞれに設けた流
量計に電磁流量弁を使用し、各充填ノズル側排出配管の
それぞれに設けた開閉弁にダイアフラム開閉弁を使用し
てもよい(請求項2)。前記請求項1、2記載の流量制
御式充填方法において、排出配管の下流側に接続した各
充填ノズルを縦方向の回転軸を中心とする水平円周上に
等間隔に配置し、同各充填ノズルが同回転軸を中心に1
回転する間に、同各充填ノズルの回転移動に同調して同
各充填ノズルの下方を回転移動する容器に液体を順番に
充填するときに、各充填バルブへの分岐配管と充填液タ
ンクの下流側に接続した排出配管とをロータリージョイ
ントにより接続し、同充填液タンクの下流側に接続した
排出配管に流量調整弁を設け、始動の運転立ち上げ時、
容器歯抜け時等の運転過度期に、充填液圧ヘッドの上限
高さを一定に維持するように同流量調整弁を予め記憶し
ている開度に自動的に設定するようにしてもよい(請求
項3)。In the flow control type filling method according to claim 1, an electromagnetic flow valve is used for a flow meter provided in each filling nozzle side discharge pipe, and an opening / closing valve provided in each filling nozzle side discharge pipe. A diaphragm opening / closing valve may be used for the above (Claim 2). In the flow control type filling method according to claim 1 or 2, the filling nozzles connected to the downstream side of the discharge pipe are arranged at equal intervals on a horizontal circumference centered on a vertical rotation axis, and the filling is performed. The nozzle is centered on the same axis of rotation 1
While rotating, in order to fill the liquid in order to the containers that rotate and move below the filling nozzles in synchronization with the rotation movement of the filling nozzles, branch pipes to the filling valves and the downstream of the filling liquid tank. The discharge pipe connected to the side is connected by a rotary joint, the discharge pipe connected to the downstream side of the same filling liquid tank is equipped with a flow rate adjusting valve, and when starting the operation of startup,
The flow rate adjusting valve may be automatically set to a pre-stored opening so as to maintain the upper limit height of the filling hydraulic head constant during a transient period such as when the container is missing teeth. Claim 3).
【0015】[0015]
【発明の実施の形態】次に本発明の流量制御式充填方法
を適用する液体充填機の一構成例を図1〜図3により説
明する。図1は液体充填機を示す系統図、図2は図1の
液体充填機の液体の流れ及び流量制御系を示すブロック
図、図3は図2中の充填量制御の手順を示すブロック図
である。BEST MODE FOR CARRYING OUT THE INVENTION Next, a structural example of a liquid filling machine to which the flow rate control type filling method of the present invention is applied will be described with reference to FIGS. 1 is a system diagram showing a liquid filling machine, FIG. 2 is a block diagram showing a liquid flow and flow rate control system of the liquid filling machine of FIG. 1, and FIG. 3 is a block diagram showing a procedure of filling amount control in FIG. is there.
【0016】なおロータリー式充填機では、排出配管3
9の下流側に接続した各充填ノズル52を縦方向の回転
軸を中心とする水平円周上に等間隔に配置し、同各充填
ノズル52が同回転軸を中心に1回転する間に、同各充
填ノズル52の回転移動に同調して同各充填ノズル52
の下方に給排される容器50に液体を順番に充填するよ
うになっている。In the rotary filling machine, the discharge pipe 3
The filling nozzles 52 connected to the downstream side of 9 are arranged at equal intervals on a horizontal circumference centered on the vertical rotation axis, and while the respective filling nozzles 52 rotate once around the rotation axis, The filling nozzles 52 are synchronized with the rotational movement of the filling nozzles 52.
The liquid is sequentially filled in the container 50 that is supplied and discharged below.
【0017】(第1実施形態)図1の32が大気に開放
した充填液タンクで、同充填液タンク32の内部を、上
端部を堰32C−1とする仕切板32により、タンク内
上流側32Aとタンク内下流側32Bとに仕切って、同
タンク内上流側32Aを供給配管33を介して貯液タン
ク(図示せず)に連通し、同タンク内上流側32Aと同
タンク内下流側32Bとを同仕切板32Cに設けた貫通
孔により連通し、同タンク内下流側32Bを排出配管3
9に連通し、仕切板32Cの貫通孔にポンプ34を設
け、同ポンプ34を駆動するモータ35を充填液タンク
32外に設置している。(First Embodiment) Reference numeral 32 in FIG. 1 denotes a filling liquid tank which is open to the atmosphere, and the inside of the filling liquid tank 32 is provided with a partition plate 32 having a weir 32C-1 at the upper end thereof in the tank. 32A and the in-tank downstream side 32B are partitioned, and the in-tank upstream side 32A communicates with a liquid storage tank (not shown) via the supply pipe 33, and the in-tank upstream side 32A and the in-tank downstream side 32B. Are communicated with each other through a through hole provided in the partition plate 32C, and the tank downstream side 32B is connected to the discharge pipe 3
9, a pump 34 is provided in a through hole of the partition plate 32C, and a motor 35 for driving the pump 34 is installed outside the filling liquid tank 32.
【0018】液体(充填液)が貯液タンク(図示せず)
→配管33→流量調整弁31→充填液タンク32のタン
ク内上流側32Aへ供給される。タンク内上流側32A
に設置したフロート32から上方に延びた上部検知部材
を液レベルセンサ37、38により検出し、そのとき得
られた検出信号を制御装置62→供給配管33に設けた
流量調整弁31へ送り、供給流量を増減させて、タンク
内上流側32Aの液レベルをポンプ34の吸込口よりも
高いレベルに制御する一方、液レベルセンサ37、38
により得られた検出信号を制御装置62→モータ35へ
送り、同モータ35によりポンプ34を駆動し、タンク
内上流側32A内の液体をタンク内下流側32Bへ絶え
ず送り込み、タンク内下流側32B内の液体を仕切板3
2Cの堰32C−1からタンク内上流側32A内へ溢流
させて、タンク内下流側32Bの充填液圧ヘッドの上限
高さを一定に維持する。The liquid (filling liquid) is a liquid storage tank (not shown)
→ Piping 33 → Flow rate adjusting valve 31 → Supply liquid 32 is supplied to the upstream side 32A in the tank. 32A upstream side in the tank
The upper detecting member extending upward from the float 32 installed in the above is detected by the liquid level sensors 37 and 38, and the detection signal obtained at that time is sent to the control device 62 → the flow rate adjusting valve 31 provided in the supply pipe 33 to supply. While increasing or decreasing the flow rate to control the liquid level on the upstream side 32A in the tank to a level higher than the suction port of the pump 34, the liquid level sensors 37, 38
The detection signal obtained by the control device 62 is sent to the motor 35, the pump 34 is driven by the motor 35, the liquid in the tank upstream side 32A is constantly sent to the tank downstream side 32B, and the tank downstream side 32B is Partition the liquid of 3
The upper limit height of the filling hydraulic head on the downstream side 32B in the tank is kept constant by overflowing from the weir 32C-1 of 2C into the upstream side 32A in the tank.
【0019】Q1Nをタンク内上流側32Aからタンク内
下流側32Bへのポンプ34の流量、QOUT をタンク内
下流側32Bから排出配管39への排出流量とすれば、
Q1N>QOUT の状態により、堰32C−1からオーバフ
ローする。タンク内下流側32Bの排出配管39がロー
タリージョイント45の固定部45Aに接続され、ロー
タリージョイント45の回転部45Bが充填機の回転部
配管47に接続され、ロータリージョイント45には、
スリップリング46が設けられている。また上記排出配
管39には、流量調整弁40が設けられている。この流
量調整弁40には、後述するように弁の開度を幾つかの
決められた位置に設定する必要があるので、エンコーダ
41付きモータにより駆動される。If Q 1N is the flow rate of the pump 34 from the upstream side 32A in the tank to the downstream side 32B in the tank, and Q OUT is the discharge flow rate from the downstream side 32B in the tank to the discharge pipe 39,
Depending on the state of Q 1N > Q OUT , overflow occurs from the weir 32C-1. The discharge pipe 39 on the downstream side 32B in the tank is connected to the fixed part 45A of the rotary joint 45, the rotating part 45B of the rotary joint 45 is connected to the rotating part pipe 47 of the filling machine, and the rotary joint 45 has
A slip ring 46 is provided. Further, the discharge pipe 39 is provided with a flow rate adjusting valve 40. The flow rate adjusting valve 40 is driven by a motor with an encoder 41 because it is necessary to set the opening degree of the valve at some predetermined positions as described later.
【0020】上記回転部配管47は、円環状のチャンバ
48に接続され、同チャンバ48には、各充填ノズル5
2が縦方向の回転軸を中心とする水平円周上に等間隔に
取付けられ、同各充填ノズル52への分岐配管のそれぞ
れには、流量計49と開閉弁51とが設けられている。
そして回転部には、制御ユニット61が各充填ノズル5
2の数と同数設けられ、それぞれが独立して各充填ノズ
ル52の流量計49と開閉弁51とを制御する。The rotating part pipe 47 is connected to an annular chamber 48, and the chamber 48 has each filling nozzle 5 connected thereto.
2 are attached at equal intervals on a horizontal circumference centered on a vertical rotation axis, and a branch pipe to each of the filling nozzles 52 is provided with a flow meter 49 and an opening / closing valve 51.
Then, the control unit 61 is provided in the rotating unit for each filling nozzle 5.
The same number as 2 is provided, and each independently controls the flow meter 49 and the opening / closing valve 51 of each filling nozzle 52.
【0021】図2、図3に示すように各充填ノズル52
が外部の決められた固定位置(充填開始位置)を通過す
る都度、通過信号が制御ユニット61にインプットさ
れ、制御ユニット61は、上記通過信号により直ちに開
閉弁51を開く指令を発して、容器50に液体が充填さ
れる。液体が容器50に向かって流れると、流量計49
が流量(流速)を測定して、その結果を制御ユニット6
1へ送り、制御ユニット61では、流量(流速×管内断
面積=単位時間当たり流量)から規定充填量を充填する
時間を算定して、算定時間が経過したときに、開閉弁5
1に閉の指令を発する。As shown in FIGS. 2 and 3, each filling nozzle 52
Each time the vehicle passes an external fixed position (filling start position), a passage signal is input to the control unit 61, and the control unit 61 immediately issues a command to open the open / close valve 51 by the passage signal, and the container 50 Is filled with liquid. When the liquid flows toward the container 50, the flow meter 49
Measures the flow rate (velocity) and the result is obtained by the control unit 6
1, the control unit 61 calculates the time for filling the specified filling amount from the flow rate (flow velocity x cross-sectional area in pipe = flow rate per unit time), and when the calculated time elapses, the on-off valve 5
Issue a close command to 1.
【0022】固定部材に取付けられている容器センサ5
5は、搬送されてきた容器50が充填ノズル52の下方
にセットされた直後に、容器50の有無を制御ユニット
61に知らせるもので、容器センサ55が容器有りの信
号を伝えた場合には、制御ユニット61の充填開始信号
が開閉弁51へ発信されるが、容器50が無い場合に
は、制御ユニット61の充填開始信号が開閉弁51へ発
信されない。Container sensor 5 attached to the fixed member
Reference numeral 5 is for notifying the control unit 61 of the presence or absence of the container 50 immediately after the conveyed container 50 is set below the filling nozzle 52, and when the container sensor 55 transmits a signal of container presence, The filling start signal of the control unit 61 is transmitted to the opening / closing valve 51, but when the container 50 is not present, the filling start signal of the control unit 61 is not transmitted to the opening / closing valve 51.
【0023】(第2実施形態)各充填ノズル52への分
岐配管に設ける流量計49に電磁流量計(分岐配管内の
流れを遮るものが何もない電磁流量計)を使用すれば、
液体(充填液)の流れ抵抗がなく、サニテーションが容
易なので、飲料充填の場合、最適である。また各充填ノ
ズル52を開閉する開閉弁51にダイヤフラム開閉弁を
使用して、清浄エアで作動すれば、これも飲料充填の場
合、最適であり、開閉の応答性も向上する。(Second Embodiment) If an electromagnetic flow meter (an electromagnetic flow meter that does not block the flow in the branch pipe) is used as the flow meter 49 provided in the branch pipe to each filling nozzle 52,
Since there is no flow resistance of liquid (filling liquid) and easy sanitation, it is most suitable for beverage filling. Further, if a diaphragm opening / closing valve is used as the opening / closing valve 51 for opening / closing each filling nozzle 52 and it is operated by clean air, this is also optimal in the case of beverage filling, and the opening / closing response is also improved.
【0024】(第3実施形態)前記大気に開放した充填
液タンク32内の仕切板32Cの上端部の堰32C−1
と各充填ノズル52の先端部(下端部)との垂直距離が
充填液圧ヘッドになり、各充填ノズル52の先端部から
流出する液体(充填液)の流速は、充填ノズル52の先
端部から充填液タンク32内の液面(タンク内下流側3
2Bの液面)までの高さと、充填液タンク32(タンク
内下流側32B)から充填液ノズル52までの配管内の
流れ圧力損失とより、決定される。(Third Embodiment) The weir 32C-1 at the upper end of the partition plate 32C in the filling liquid tank 32 opened to the atmosphere.
And the vertical distance between the tip (lower end) of each filling nozzle 52 becomes the filling hydraulic head, and the flow velocity of the liquid (filling liquid) flowing out from the tip of each filling nozzle 52 is from the tip of the filling nozzle 52. Liquid level in filling liquid tank 32 (downstream side of tank 3
2B) and the pressure loss of the flow in the pipe from the filling liquid tank 32 (downstream side 32B in the tank) to the filling liquid nozzle 52.
【0025】ロータリー式充填機では、各充填ノズル5
2が縦方向の回転軸を中心に1回転する間に、同各充填
ノズル52の回転移動に同調して同各充填ノズル52の
下方を回転移動する容器50に液体が順番に充填され
る。通常の運転時、排出配管39→回転部配管47→各
充填ノズル52に流れる液体(充填液)は、一定量であ
るが、始動の運転立ち上げ時、容器歯抜け時等の運転過
度期には、液体(充填液)に流量変化があって、配管圧
力損失が変化するので、流量計49の測定流量値に誤差
の生じる可能性がある。In the rotary type filling machine, each filling nozzle 5
The liquid is sequentially filled in the container 50 that rotates and moves below the respective filling nozzles 52 in synchronization with the rotational movement of the respective filling nozzles 52 while the second rotating once around the vertical rotation axis. During normal operation, the amount of liquid (filling liquid) flowing through the discharge pipe 39 → rotating part pipe 47 → each filling nozzle 52 is constant, but during a transient operation period such as when the operation is started for start-up or when the teeth of the container are missing. Since the flow rate of the liquid (filling liquid) changes and the pipe pressure loss changes, an error may occur in the flow rate value measured by the flow meter 49.
【0026】この状態を改善するため、充填液タンク3
2とロータリージョイント45との間の排出配管39に
流量調整弁40を設け、充填中の容器50の数或いは充
填機の回転速度に対応する流量調整弁40の開度を、定
常時の系内圧力損失と同レベルになるように予め算定ま
はた実験で決めておき、これを制御装置62に記憶する
ことにより、始動の運転立ち上げ時、容器歯抜け時等の
運転過度期の流量調整弁40の開度を自動的に設定し
て、充填液圧力を一定に揃え、流量計49を通過する流
速範囲を狭くして、測定値を安定させる。In order to improve this condition, the filling liquid tank 3
2 is provided in the discharge pipe 39 between the rotary joint 45 and the rotary joint 45, and the opening degree of the flow rate adjusting valve 40 corresponding to the number of containers 50 being filled or the rotation speed of the filling machine is set in the system in a steady state. It is decided in advance by calculation or experiment so that it becomes the same level as the pressure loss, and by storing this in the control device 62, the flow rate is adjusted during the transient period of operation, such as when the operation is started at startup and when the container is missing teeth. The opening degree of the valve 40 is automatically set, the filling liquid pressure is made constant, the flow velocity range passing through the flow meter 49 is narrowed, and the measured value is stabilized.
【0027】固定部材に取付けられている容器センサ5
5は、搬送されてきた容器50が充填ノズル52の下方
にセットされた直後に、容器50の有無を制御ユニット
61に知らせ、制御ユニット61からの容器信号がスリ
ップリング46を経て制御装置62へ送られ、充填機上
にセットされた容器50の数が制御装置62によりカウ
ントされ、同カウント数に対応して流量調整弁40の開
度が記憶されている算定値または実験値に自動的に設定
される(図2参照)。Container sensor 5 attached to the fixing member
Immediately after the conveyed container 50 is set below the filling nozzle 52, 5 informs the control unit 61 of the presence or absence of the container 50, and the container signal from the control unit 61 is sent to the control device 62 via the slip ring 46. The number of the containers 50 sent and set on the filling machine is counted by the control device 62, and the opening degree of the flow rate adjusting valve 40 corresponding to the count number is automatically stored as a stored calculated value or experimental value. It is set (see FIG. 2).
【0028】[0028]
【発明の効果】本発明の流量制御式充填方法は前記のよ
うに貯液タンクの液体を供給配管を経て充填液タンクの
タンク内上流側へ供給し、同タンク内上流側に設置した
液レベルセンサからの検出信号を供給配管に設けた流量
調整弁へ送り、同流量制御弁を制御して、同タンク内上
流側の液レベルを適当な範囲に調整するとともに、同タ
ンク内上流側の液体を仕切板に設けた貫通孔を経てタン
ク内下流側へ絶えず送り込んで仕切板上端部の堰からタ
ンク内上流側へ溢流させることにより充填液圧ヘッドの
上限高さを一定に維持する一方、各充填ノズルへの分岐
配管のそれぞれに設けた流量計からの検出信号を制御ユ
ニットへ送り、ここで容器に充填する液体の充填時間を
算定して、その結果を各充填ノズルへの分岐配管のそれ
ぞれに設けた開閉弁へ送り、同各開閉弁を開閉して、容
器に一定量の液体を充填するので、容器内への液体の充
填精度を向上できる。As described above, the flow control type filling method of the present invention supplies the liquid in the liquid storage tank to the upstream side in the tank of the filling liquid tank via the supply pipe, and the liquid level installed in the upstream side in the tank. The detection signal from the sensor is sent to the flow rate adjustment valve provided in the supply pipe, and the flow rate control valve is controlled to adjust the liquid level on the upstream side in the tank to an appropriate range, and the liquid on the upstream side in the tank. While constantly maintaining the upper limit height of the filling hydraulic head by constantly feeding the liquid to the downstream side in the tank through the through hole provided in the partition plate and overflowing from the weir at the upper end of the partition plate to the upstream side in the tank, The detection signal from the flow meter provided in each branch pipe to each filling nozzle is sent to the control unit, where the filling time of the liquid to be filled in the container is calculated, and the result is calculated for the branch pipe to each filling nozzle. Opening and closing provided for each To feed, by opening and closing the same off valves, so to fill the predetermined amount of liquid in the container, it is possible to improve the filling accuracy of the liquid into the container.
【0029】その際、各充填ノズルへの分岐配管に設け
る流量計に電磁流量計(分岐配管内の流れを遮るものが
何もない電磁流量計)を使用すれば、液体(充填液)の
流れ抵抗がなく、サニテーションが容易なので、飲料充
填の場合、最適である。また各充填ノズルを開閉する開
閉弁にダイヤフラム開閉弁を使用して、清浄エアで作動
すれば、これも飲料充填の場合、最適であり、開閉の応
答性も向上する。At this time, if an electromagnetic flow meter (an electromagnetic flow meter that does not block the flow in the branch pipe) is used as the flow meter provided in the branch pipe to each filling nozzle, the flow of liquid (filling liquid) It is suitable for beverage filling because it has no resistance and easy sanitation. If a diaphragm on-off valve is used as an on-off valve that opens and closes each filling nozzle and operates with clean air, this is also optimal in the case of beverage filling, and the opening and closing responsiveness is also improved.
【0030】また充填液タンクとロータリージョイント
との間の排出配管に流量調整弁を設け、充填中の容器の
数或いは充填機の回転速度に対応する流量調整弁の開度
を、定常時の系内圧力損失と同レベルになるように予め
算定まはた実験で決めておき、これを制御装置に記憶す
ることにより、始動の運転立ち上げ時、容器歯抜け時等
の運転過度期の流量調整弁の開度を自動的に設定して、
充填液圧力を一定に揃え、流量計を通過する流速範囲を
狭くして、測定値を安定させるので、充填流量を増大さ
せることがなくて、ロータリー式充填機でも、容器内へ
の液体の充填精度を向上できる。Further, a flow rate adjusting valve is provided in the discharge pipe between the filling liquid tank and the rotary joint, and the opening of the flow rate adjusting valve corresponding to the number of containers being filled or the rotation speed of the filling machine is set to a system in a steady state. Determine in advance by experiments or calculations so that it will be at the same level as the internal pressure loss, and store this in the control device to adjust the flow rate during a transient operation period such as when starting the operation during startup or when the container is missing teeth. Automatically set the valve opening,
The filling liquid pressure is made constant and the flow velocity range passing through the flow meter is narrowed to stabilize the measured value, so the filling flow amount does not increase and the filling of the liquid into the container is possible even with a rotary filling machine. The accuracy can be improved.
【0031】また充填液タンク(製品液タンク)を大気
開放形にしているので、構造を簡単化できて、設備コス
トを低減できる。Further, since the filling liquid tank (product liquid tank) is open to the atmosphere, the structure can be simplified and the equipment cost can be reduced.
【図1】本発明の流量制御式充填方法に適用する液体充
填機を示す系統図である。FIG. 1 is a system diagram showing a liquid filling machine applied to a flow control type filling method of the present invention.
【図2】同液体充填機の液体の流れ及び流量制御系を示
すブロック図である。FIG. 2 is a block diagram showing a liquid flow and flow rate control system of the liquid filling machine.
【図3】図2中の充填量制御の手順を示すブロック図で
ある。FIG. 3 is a block diagram showing a procedure of filling amount control in FIG.
【図4】従来の液体充填機を示す系統図である。FIG. 4 is a system diagram showing a conventional liquid filling machine.
【図5】同液体充填機の制御装置の操作手順を示す説明
図である。FIG. 5 is an explanatory diagram showing an operation procedure of a control device of the liquid filling machine.
31 流量調整弁 32 充填液タンク 32A タンク内上流側 32B タンク内下流側 32C 仕切板 32C−1 堰 33 供給配管 34 ポンプ 35 モータ 36 フロート 37、38 液レベルセンサ 39 排出配管 40 流量調整弁 41 エンコーダ 45 ロータリージョイント 45A ロータリージョイント45の固定部 45B ロータリージョイント45の回転部 47 回転部配管 48 チャンバー 49 流量計 50 容器 51 開閉弁 52 充填ノズル 61 制御ユニット 62 制御装置 31 Flow Control Valve 32 Filling Liquid Tank 32A Tank Upstream Side 32B Tank Downstream Side 32C Partition Plate 32C-1 Weir 33 Supply Pipe 34 Pump 35 Motor 36 Float 37, 38 Liquid Level Sensor 39 Discharge Pipe 40 Flow Control Valve 41 Encoder 45 Rotary joint 45A Fixed part of rotary joint 45 45B Rotating part of rotary joint 45 Rotating part 47 Piping 48 Chamber 49 Flow meter 50 Container 51 Opening / closing valve 52 Filling nozzle 61 Control unit 62 Control device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山口 幸男 愛知県名古屋市中村区岩塚町字九反所60番 地の1 中菱エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Yamaguchi 1 at 60 Kyutansho, Iwazuka-cho, Nakamura-ku, Nagoya, Aichi Nakabishi Engineering Co., Ltd.
Claims (3)
器方向に導くとともに、同配管の途中に設けた開閉弁を
開いて、液体圧により液体を容器内へ充填する液体の充
填方法において、前記配管の途中に大気に開放した充填
液タンクを設け、上端部を堰とする仕切板により同充填
液タンクの内部をタンク内上流側とタンク内下流側とに
仕切って、同タンク内上流側を前記貯液タンク側の供給
配管に連通し、同タンク内上流側と同タンク内下流側と
を同仕切板に設けた貫通孔により連通し、同タンク内下
流側を排出配管に連通し、同排出配管の下流側に複数の
充填ノズルを接続し、前記貯液タンクの液体を前記供給
配管を経て前記充填液タンクのタンク内上流側へ供給
し、同タンク内上流側に設置した液レベルセンサからの
検出信号を前記供給配管に設けた流量調整弁へ送り、同
流量制御弁を制御して、同タンク内上流側の液レベルを
適当な範囲に調整するとともに、同タンク内上流側の液
体を前記貫通孔を経て前記タンク内下流側へ絶えず送り
込んで仕切板上端部の堰からタンク内上流側へ溢流させ
ることにより充填液圧ヘッドの上限高さを一定に維持す
る一方、前記各充填ノズルへの分岐配管のそれぞれに設
けた流量計からの検出信号を制御ユニットへ送り、ここ
で容器に充填する液体の充填時間を算定して、その結果
を前記各充填ノズルへの分岐配管のそれぞれに設けた開
閉弁へ送り、同各開閉弁を開閉して、容器に一定量の液
体を充填することを特徴した流量制御式充填方法。1. A method of filling a liquid in which a liquid stored in a liquid storage tank is guided to a container through a pipe and an opening / closing valve provided in the middle of the pipe is opened to fill the liquid into the container by liquid pressure. A filling liquid tank open to the atmosphere is provided in the middle of the pipe, and the inside of the filling liquid tank is partitioned into a tank upstream side and a tank downstream side by a partition plate having an upper end as a weir. Side is connected to the supply pipe on the side of the liquid storage tank, the upstream side in the tank and the downstream side in the tank are connected by a through hole provided in the partition plate, and the downstream side in the tank is connected to the discharge pipe. , A plurality of filling nozzles connected to the downstream side of the discharge pipe, the liquid in the storage tank is supplied to the upstream side in the tank of the filling liquid tank via the supply pipe, and the liquid installed in the upstream side in the tank The detection signal from the level sensor is sent to the supply It is sent to a flow rate adjusting valve provided in the pipe, and the flow rate control valve is controlled to adjust the liquid level on the upstream side in the tank to an appropriate range, and the liquid on the upstream side in the tank is passed through the through hole to The upper limit height of the filling hydraulic head is maintained constant by constantly feeding it to the downstream side in the tank and overflowing it from the weir at the upper end of the partition plate to the upstream side in the tank, while branch pipes to each of the filling nozzles are maintained. The detection signal from the flow meter provided in the above is sent to the control unit, where the filling time of the liquid to be filled in the container is calculated, and the result is sent to the on-off valve provided in each of the branch pipes to each filling nozzle. A flow-rate-controlled filling method characterized by opening and closing each of the on-off valves to fill a container with a fixed amount of liquid.
に設けた流量計に電磁流量弁を使用し、前記各充填ノズ
ル側排出配管のそれぞれに設けた開閉弁にダイアフラム
開閉弁を使用した請求項1記載の流量制御式充填方法。2. An electromagnetic flow valve is used for a flow meter provided in each of the filling nozzle side discharge pipes, and a diaphragm on-off valve is used as an opening / closing valve provided in each of the filling nozzle side discharge pipes. 1. The flow control type filling method according to 1.
ノズルを縦方向の回転軸を中心とする水平円周上に等間
隔に配置し、同各充填ノズルが同回転軸を中心に1回転
する間に、同各充填ノズルの回転移動に同調して同各充
填ノズルの下方を回転移動する容器に液体を順番に充填
するときに、前記各充填バルブへの分岐配管と前記充填
液タンクの下流側に接続した排出配管とをロータリージ
ョイントにより接続し、同充填液タンクの下流側に接続
した排出配管に流量調整弁を設け、始動の運転立ち上げ
時、容器歯抜け時等の運転過度期に、充填液圧ヘッドの
上限高さを一定に維持するように同流量調整弁を予め記
憶している開度に自動的に設定する請求項1、2記載の
流量制御式充填方法。3. The filling nozzles connected to the downstream side of the discharge pipe are arranged at equal intervals on a horizontal circumference centered on a vertical rotation axis, and the respective filling nozzles are arranged about the same rotation axis as a center. While rotating, in order to sequentially fill the liquid in the container that rotates and moves below the respective filling nozzles in synchronization with the rotation movement of the respective filling nozzles, branch pipes to the respective filling valves and the filling liquid tank The discharge pipe connected to the downstream side of the tank is connected by a rotary joint, and a flow rate adjustment valve is installed in the discharge pipe connected to the downstream side of the same filling liquid tank to prevent excessive operation such as when starting the operation or when the container is missing teeth. 3. The flow rate control type filling method according to claim 1, wherein the flow rate adjusting valve is automatically set to a pre-stored opening so that the upper limit height of the filling hydraulic head is kept constant during the period.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31805895A JP3712452B2 (en) | 1995-12-06 | 1995-12-06 | Flow rate control filling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31805895A JP3712452B2 (en) | 1995-12-06 | 1995-12-06 | Flow rate control filling method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09156697A true JPH09156697A (en) | 1997-06-17 |
JP3712452B2 JP3712452B2 (en) | 2005-11-02 |
Family
ID=18095018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31805895A Expired - Fee Related JP3712452B2 (en) | 1995-12-06 | 1995-12-06 | Flow rate control filling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3712452B2 (en) |
Cited By (12)
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EP1762539A1 (en) | 2005-09-13 | 2007-03-14 | Sidel | Method and device for filling a container with a predetermined quantity of fluid and related filling machine |
WO2008126119A1 (en) * | 2007-04-11 | 2008-10-23 | Sbc Bottling & Canning S.P.A. | Filling valve and a method for filling a container |
CN102172582A (en) * | 2010-12-29 | 2011-09-07 | 常州亿晶光电科技有限公司 | Flow type precise automatic liquid supplementing device |
JP2013107683A (en) * | 2011-11-22 | 2013-06-06 | Toppan Printing Co Ltd | Liquid filling method and device |
CN103172009A (en) * | 2013-03-29 | 2013-06-26 | 江苏新美星包装机械股份有限公司 | Filling valve |
KR20150037775A (en) * | 2015-02-13 | 2015-04-08 | 디에스플랜트(주) | A High-speed Fluid Filling System Using Electronic Flowmeter |
KR20160097167A (en) * | 2016-07-29 | 2016-08-17 | 디에스플랜트(주) | A High-speed Fluid Filling System Using Electronic Flowmeter |
US9428373B2 (en) | 2011-04-06 | 2016-08-30 | Mitsubishi Heavy Industries Food & Packaging Machine Co., Ltd. | Rotary-type filling machine and method for calculating filling quantity for rotary-type filling machine |
CN108163795A (en) * | 2018-01-28 | 2018-06-15 | 青岛创高世纪信息科技有限公司 | A kind of filling liquid level equilibrium device |
CN109178376A (en) * | 2018-10-18 | 2019-01-11 | 楚天科技股份有限公司 | A kind of filling pressure control method and equipment |
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-
1995
- 1995-12-06 JP JP31805895A patent/JP3712452B2/en not_active Expired - Fee Related
Cited By (15)
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---|---|---|---|---|
US7703484B2 (en) | 2005-09-13 | 2010-04-27 | Sidel Participations | Method and device for filling a container with a predetermined quantity of fluid, filling machine |
EP1762539A1 (en) | 2005-09-13 | 2007-03-14 | Sidel | Method and device for filling a container with a predetermined quantity of fluid and related filling machine |
WO2008126119A1 (en) * | 2007-04-11 | 2008-10-23 | Sbc Bottling & Canning S.P.A. | Filling valve and a method for filling a container |
CN102172582A (en) * | 2010-12-29 | 2011-09-07 | 常州亿晶光电科技有限公司 | Flow type precise automatic liquid supplementing device |
US9428373B2 (en) | 2011-04-06 | 2016-08-30 | Mitsubishi Heavy Industries Food & Packaging Machine Co., Ltd. | Rotary-type filling machine and method for calculating filling quantity for rotary-type filling machine |
JP2013107683A (en) * | 2011-11-22 | 2013-06-06 | Toppan Printing Co Ltd | Liquid filling method and device |
CN103172009A (en) * | 2013-03-29 | 2013-06-26 | 江苏新美星包装机械股份有限公司 | Filling valve |
KR20150037775A (en) * | 2015-02-13 | 2015-04-08 | 디에스플랜트(주) | A High-speed Fluid Filling System Using Electronic Flowmeter |
KR20160097167A (en) * | 2016-07-29 | 2016-08-17 | 디에스플랜트(주) | A High-speed Fluid Filling System Using Electronic Flowmeter |
CN108163795A (en) * | 2018-01-28 | 2018-06-15 | 青岛创高世纪信息科技有限公司 | A kind of filling liquid level equilibrium device |
CN109178376A (en) * | 2018-10-18 | 2019-01-11 | 楚天科技股份有限公司 | A kind of filling pressure control method and equipment |
CN109178376B (en) * | 2018-10-18 | 2020-10-20 | 楚天科技股份有限公司 | Filling pressure control method and equipment |
JP2021133954A (en) * | 2020-02-26 | 2021-09-13 | 三菱重工機械システム株式会社 | Filling device and filling method |
CN112299344A (en) * | 2020-10-22 | 2021-02-02 | 广东新一代工业互联网创新技术有限公司 | Production flow monitoring method based on 5G communication technology |
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