JPH0733195A - Charging valve of liquid filling machine - Google Patents
Charging valve of liquid filling machineInfo
- Publication number
- JPH0733195A JPH0733195A JP19406793A JP19406793A JPH0733195A JP H0733195 A JPH0733195 A JP H0733195A JP 19406793 A JP19406793 A JP 19406793A JP 19406793 A JP19406793 A JP 19406793A JP H0733195 A JPH0733195 A JP H0733195A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- air
- container
- valve
- cylinder
- 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]
【産業上の利用分野】本発明は、容器に液体を充填、例
えばガラス，プラスチック等の容器に飲料水，油，化粧
液，化学溶液等の各種液体をほぼ口元近くまでの一定量
自動充填する際に用いる液体充填機の充填バルブに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fills a container with a liquid, for example, a container such as glass or plastic is automatically filled with a certain amount of various liquids such as drinking water, oil, cosmetic liquid, and chemical solution up to near the mouth. The present invention relates to a filling valve of a liquid filling machine used at that time.
【０００２】[0002]
【従来の技術】従来、液体充填機の充填バルブを用いて
容器に液体を一定量自動充填する際に問題になるのが、
容器内に供給された液体によってエア抜き管と容器内エ
アとの連通が遮断されたときに容器に対する液体供給が
自動的に停止されるものの、この連通遮断の際に容器内
に供給した液体がエア抜き管を若干上がった状態で停止
するため、充填完了した容器が液体充填機の充填バルブ
から外されたときに、エア抜き管には若干上がった液体
がそのまま残ってしまうことである。従って充填バルブ
から充填完了した容器を外した後に、次の容器を充填バ
ルブ下端に押当てて、液タンク内からの液体を容器内に
充填する際に、エア抜き管を通しての容器内エアのエア
抜きがスムーズに行われず、充填時間が若干長くなり、
その結果として、液体充填機の充填能力が低下してしま
うという欠点がある。2. Description of the Related Art Conventionally, there has been a problem in automatically filling a fixed amount of liquid into a container using a filling valve of a liquid filling machine.
Although the liquid supply to the container is automatically stopped when the liquid supplied to the container interrupts the communication between the air vent pipe and the air inside the container, the liquid supplied to the container at the time of this communication cutoff is Since the air bleeding tube is stopped in a slightly raised state, when the completely filled container is removed from the filling valve of the liquid filling machine, the slightly bleeded liquid remains in the air bleeding tube. Therefore, after removing the completely filled container from the filling valve, press the next container against the lower end of the filling valve to fill the liquid from the liquid tank into the container. Draining is not done smoothly, filling time is slightly longer,
As a result, there is a drawback that the filling capacity of the liquid filling machine is reduced.
【０００３】この対策として、特公昭５８−５２９１５
号に示すような、容器に対する液体充填開始時にエア抜
き管内に残った液体を強制排除する装置が開発されてい
る。すなわち、図９破断正面図，図１０断面図に示す充
填装置において、１０１は外筒であってその外側中央部
を液タンク１００の底面に取付ける。外筒１０１内は、
その上半分は大径部１０２，下半分は小径部１０３とな
っており、大径部１０２の壁にはタンク１００内の液体
が侵入できる窓１０４がある。１０５は上記小径部１０
３の上方にあって、上下できるよう嵌合された内筒であ
って、その上端部は小径部１０３及び大径部１０２によ
って形成される段部１０６の上面と衝合できる弁体１０
７となっており、その下方は小径部１０３内面と接し、
かつ液体の侵入窓１０８がある。またこの弁体１０７の
上面と外筒１０１の上端のキャップ１０９間にはコイル
状スプリング１１０があって通常弁体１０７は段部１０
６と衝合している。１１１はピストン筒で、その上部は
外筒１０１の内面と接し、その上端は前記内筒１０５の
末端と間隙を存して設けられるも、ピストン筒１１１の
上昇時、それらは衝合できる位置におかれている。この
ピストン筒１１１の下端は外筒１０１の末端より下方に
位置し水平なフランジ部１１２の下面は容器の口と衝合
できる。またこのフランジ部１１２の上面と外筒１０１
の適宜位置に設けた突条１１３間にフランジ部１１２を
下方に押圧するコイルスプリング１１４がある。更にこ
のフランジ部１１２の下面中央にはこれより吊下げた液
体導入管１１５があって、その下方は容器内に少し侵入
できるものであり、末端は解放されている。As a countermeasure against this, Japanese Examined Patent Publication Sho 58-52915
As described in No. 3, a device for forcibly removing the liquid remaining in the air bleeding tube at the time of starting filling the liquid into the container has been developed. That is, in the filling device shown in the broken front view of FIG. 9 and the sectional view of FIG. 10, 101 is an outer cylinder, and the outer center part is attached to the bottom surface of the liquid tank 100. Inside the outer cylinder 101,
The upper half has a large diameter portion 102 and the lower half has a small diameter portion 103, and the wall of the large diameter portion 102 has a window 104 through which the liquid in the tank 100 can enter. 105 is the small diameter portion 10
3, which is an inner cylinder above 3 and fitted so as to be vertically movable, the upper end of which is capable of abutting against the upper surface of a step 106 formed by a small diameter portion 103 and a large diameter portion 102.
7, the lower part is in contact with the inner surface of the small diameter portion 103,
In addition, there is a liquid entry window 108. Further, there is a coil spring 110 between the upper surface of the valve body 107 and the cap 109 at the upper end of the outer cylinder 101, and the normal valve body 107 has a step portion 10.
I'm in conflict with 6. 111 is a piston cylinder, the upper part of which is in contact with the inner surface of the outer cylinder 101 and the upper end of which is provided with a gap from the end of the inner cylinder 105, but when the piston cylinder 111 rises, they are in a position where they can abut against each other. It is set. The lower end of the piston cylinder 111 is located below the end of the outer cylinder 101, and the lower surface of the horizontal flange 112 can abut the mouth of the container. The upper surface of the flange portion 112 and the outer cylinder 101
There is a coil spring 114 that presses the flange 112 downward between the protrusions 113 provided at appropriate positions. Further, at the center of the lower surface of the flange portion 112, there is a liquid introduction pipe 115 hung from it, the lower portion of which can enter a little inside the container, and the end is open.
【０００４】１１６はキャップ１０９を貫通しこれに固
定されたエア抜き管で、その上端はタンク１００内の液
体の水面より上方で、タンク１００内に解放され、その
下方は外筒１０１，弁体１０７，ピストン筒１１１，液
体導入管１１５のそれぞれの中心軸を貫通し、末端にそ
の上面が液体導入管１１５の末端を遮蔽する開閉弁１１
７が設けてある。またこのエア抜き管１１６の下方に
は、図１０に示すように、同管１１６の外側に間隙を存
し、かつ末端が閉された補助導入管１１９を液体導入管
１１５の内面と接して設け、その一側に縦長の液体流出
孔１２０を穿つ。更にエア抜き管１１６の下方には、液
体流出孔１２０と対向する位置にエア抜き孔１１８を設
け、同孔１１８はエア抜き管１１６と補助導入管１１９
との間隙を経て、補助導入管１１９を貫通している。こ
のとき、このエア抜き孔１１８は、エア抜き管１１６と
補助導入管１１９との間隙には連通していない。Reference numeral 116 denotes an air bleeding pipe which penetrates through the cap 109 and is fixed thereto. The upper end of the air bleeding pipe is released above the water surface of the liquid in the tank 100 and is released into the tank 100. An on-off valve 11 which penetrates the central axes of 107, the piston cylinder 111, and the liquid introduction pipe 115, and whose upper surface shields the end of the liquid introduction pipe 115 at the end.
7 is provided. Further, as shown in FIG. 10, below the air bleeding tube 116, an auxiliary introducing tube 119 having a gap outside the tube 116 and having a closed end is provided in contact with the inner surface of the liquid introducing tube 115. A vertically long liquid outflow hole 120 is formed on one side thereof. Further, an air vent hole 118 is provided below the air vent pipe 116 at a position facing the liquid outflow hole 120, and the hole 118 includes the air vent pipe 116 and the auxiliary introduction pipe 119.
The auxiliary introduction pipe 119 penetrates through a gap between the and. At this time, the air vent hole 118 is not in communication with the gap between the air vent pipe 116 and the auxiliary introduction pipe 119.
【０００５】しかして図９において、タンク１００内の
液体は外筒１０１の侵入窓１０４より大径部１０２内に
あるも弁体１０７が小径部１０３への侵入を阻止してい
る。いま図示していない適宜の装置で、液体を注入すべ
き容器が上昇するとその口部がフランジ部１１２に当た
りスプリング１１４の押圧力に抗して押し上げる結果、
ピストン筒１１１及び液体導入管１１５は上昇する。こ
の時点では、同管１１５の上昇といえども、エア抜き管
１１６及び補助導入管１１９のそれぞれの孔１１８，１
２０が閉ざされているため、小径部１０３内の圧力は圧
縮されて上昇する。更にピストン筒１１１が上昇する
と、同筒１１１の上端と内筒１０５の末端とが衝合して
スプリング１１０の押圧力に抗して内筒１０５を上昇さ
せるので、弁体１０７は連動する。この結果、小径部１
０３の圧力が高いため勢いよく内筒１０５の窓１０８を
通ってこの小径部１０３内に入り、このときはすでに液
体の流出孔１２０が容器口内で解放されているので、ピ
ストン筒１１１内より補助導入管１１９を通り、この流
出孔１２０より容器内に急速にそそがれる。また容器内
のエアは、容器内への流体の流出が勢いよいため、これ
もまた急速にエア抜き孔１１８からエア抜き管１１６に
入り、たとえこの管１１６に少量の液体などが溜まって
いてもエア排出の勢いで上昇させ、タンク１００の上方
に排気又は液体を還元させる。容器内の液体が一定量に
達すると容器は適宜の装置で下降し、それぞれの部材は
上述とは逆の作用を行い旧位置に復帰し、順次この動作
を繰返し行う。In FIG. 9, however, the liquid in the tank 100 is in the larger diameter portion 102 than the entry window 104 of the outer cylinder 101, but the valve body 107 prevents the liquid from entering the small diameter portion 103. With an appropriate device (not shown), when the container into which the liquid is injected rises, its mouth hits the flange 112 and pushes up against the pressing force of the spring 114,
The piston cylinder 111 and the liquid introduction pipe 115 rise. At this point, even though the pipe 115 is lifted, the holes 118, 1 of the air bleeding pipe 116 and the auxiliary introduction pipe 119, respectively.
Since 20 is closed, the pressure in the small diameter portion 103 is compressed and rises. When the piston cylinder 111 further rises, the upper end of the cylinder 111 and the end of the inner cylinder 105 collide with each other to raise the inner cylinder 105 against the pressing force of the spring 110, so that the valve body 107 interlocks. As a result, the small diameter portion 1
Since the pressure of 03 is high, it vigorously enters the small diameter portion 103 through the window 108 of the inner cylinder 105. At this time, the liquid outflow hole 120 has already been released in the container mouth, so the piston cylinder 111 assists. It passes through the introduction pipe 119 and is rapidly poured into the container through the outflow hole 120. Further, the air in the container has a strong flow of the fluid into the container. Therefore, this also rapidly enters the air vent pipe 116 from the air vent hole 118, and even if a small amount of liquid or the like is accumulated in the pipe 116. It is raised by the force of air discharge, and exhaust or liquid is returned above the tank 100. When the amount of liquid in the container reaches a certain amount, the container is lowered by an appropriate device, the respective members perform the operations opposite to the above to return to the old position, and this operation is sequentially repeated.
【０００６】しかしながら、このような装置は、エア抜
き管１１６内に液体が侵入して容器内のエアの排出を妨
げて液体の注入が阻止され、充填時間が長くなる、とい
う欠点を除去することができるが、その反面次のような
問題点がある。 (1) シリンダー室を形成する上部の弁体１０７はスプリ
ング１１０力で閉じられる逆止弁を形成しているので、
高速充填機に搭載する場合等では、ピストン筒１１１の
上昇スピードが早いために小径部１０３で形成されるシ
リンダー室の液圧が急速かつ過大になり、弁体１０７を
持ち上げてシリンダー室内の液がタンク１００側に逆流
し、充填効率とともにシリンダー室内の加圧効果が減少
するおそれがある。 (2) タンク１００からの液体を容器に注入する前に行わ
れるシリンダー室内液体の圧縮作動は大なり小なり衝撃
を発生させることになり、機械的動きとしても装置の寿
命，騒音発生の原因になる等の点からして好ましくな
い。 (3) エア抜き管１１６下部の開閉弁１１７と液体導入管
１１５との接触面には構造上、シール部材を取付けるこ
とができず、しかも接触部分が少なく、どうしてもシー
ルが不完全になるため、非充填工程時にシリンダー室内
の液が外部に漏れるおそれがある。However, such a device eliminates the drawback that the liquid enters the air bleeding tube 116 to hinder the discharge of the air in the container, the injection of the liquid is blocked, and the filling time becomes long. However, there are the following problems. (1) Since the upper valve body 107 forming the cylinder chamber forms a check valve that is closed by the force of the spring 110,
When it is mounted on a high-speed filling machine, etc., the hydraulic pressure in the cylinder chamber formed by the small diameter portion 103 becomes rapid and excessive due to the rapid rising speed of the piston cylinder 111, so that the valve body 107 is lifted and the liquid in the cylinder chamber is removed. There is a risk that the flow will flow back to the tank 100 side and the pressurizing effect in the cylinder chamber will decrease along with the filling efficiency. (2) The compression operation of the liquid in the cylinder chamber, which is performed before the liquid from the tank 100 is injected into the container, causes a shock to a greater or lesser extent, which may cause the life of the device and the generation of noise as mechanical movement. It is not preferable in terms of (3) Due to the structure, a seal member cannot be attached to the contact surface between the on-off valve 117 and the liquid introduction pipe 115 below the air bleeding pipe 116. Moreover, since the contact portion is small, the seal is incomplete by any means. The liquid in the cylinder chamber may leak to the outside during the non-filling process.
【０００７】また他の従来技術として、特公昭５８−２
２４２１号に示すような、圧縮エアをエア抜き管に流し
残液を排除する装置があるが、次のような問題点があ
る。 (1) 容器口部受体案内用外套及び容器口部当接用パッキ
ング付容器口部受体で形成される圧縮室内に螺旋ばねが
あるため、ばねに汚れが付着しやすく衛生的でない。 (2) 取扱う容器外寸法は容器口部受体案内用外套内寸法
より小さくなければならず、取扱い容器寸法が制約され
る。 (3) 充填用嘴管下端開口縁受鍔に付着した充填液が容器
口部当接用パッキング付容器口部受体上面に付着し、圧
縮室内を汚すおそれがあり、かつその汚れが次回充填時
に容器内に入るおそれがある。As another conventional technique, Japanese Patent Publication No. 58-2
There is a device as shown in No. 2421 for removing compressed liquid by flowing compressed air into an air vent pipe, but it has the following problems. (1) Since there is a spiral spring in the compression chamber formed by the container mouth part guide outer jacket and the container mouth part receiver with packing for abutting the container mouth part, the spring is easily soiled and unsanitary. (2) The outer dimensions of the container to be handled must be smaller than the inner dimensions of the outer container for guiding the container mouth receptacle, which limits the dimensions of the container to be handled. (3) There is a risk that the filling liquid adhering to the bottom bezel of the filling beak tube at the opening edge will adhere to the upper surface of the container mouth receiver with packing for abutting the container mouth, and will contaminate the compression chamber. Sometimes it may get inside the container.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、このような
事情に鑑みて提案されたもので、容器に対する液体充填
効率を低下させることなく、しかも液体を圧縮させるこ
となく、液体充填開始時にエア抜き管内に残った液体を
容易かつスムーズに強制排除することができ、かつ衛生
的であり、更に胴径の大きな容器にも容易に対応できる
液体充填機の充填バルブを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and does not reduce the liquid filling efficiency of the container and does not compress the liquid, and the air is filled at the start of the liquid filling. An object of the present invention is to provide a filling valve for a liquid filling machine that can easily and smoothly forcibly remove the liquid remaining in the drain pipe, is sanitary, and can easily cope with a container having a large body diameter. .
【０００９】[0009]
【課題を解決するための手段】そのために本発明は、液
タンクに垂設された本体と、上記本体に上下摺動可能に
挿通され液通路及びエア抜き通路が形成されるとともに
下方に液導入管を突出させた液充填用弁体と、下部に上
記液導入管の外側同心状にエア抜き管を突出させ上部は
上記本体下部内面に上下摺動可能に挿通されるとともに
常時下方へ付勢されかつ中央部の液導入管外面と形成す
るエア抜き通路を一部広くしエア抜き用弁体とともに弁
を構成する弁座体と、上記弁座体外面に上下摺動可能に
外嵌されるとともに常時下方へ付勢されかつ同弁座体下
部との間でエアポンプ室を形成したうえ同弁座体下端の
エア抜き管との間に圧縮エア噴出孔を形成したシリンダ
ーとを具え、容器の口元を上記シリンダー下端に押当て
て容器とともに同シリンダーを押上げたとき上記エアポ
ンプ室の容積を縮小して容器の口元から容器内にエアを
積極供給することを特徴とする。To this end, according to the present invention, there is provided a main body vertically installed in a liquid tank, a liquid passage and an air vent passage which are vertically slidably inserted in the main body, and liquid is introduced downward. A liquid filling valve body with a protruding tube and an air bleeding tube protruding concentrically outside the liquid introducing tube at the lower part, and the upper part is vertically slidably inserted into the inner surface of the lower part of the main body and always urged downward. And a valve seat body that constitutes a valve together with an air bleeding valve body by partially widening an air bleeding passage formed with the outer surface of the liquid introduction pipe in the central portion, and is fitted onto the outer surface of the valve seat body so as to be vertically slidable. And a cylinder that is always urged downward and that forms an air pump chamber with the lower part of the valve seat body and also forms a compressed air ejection hole with the air vent pipe at the lower end of the valve seat body. Push the mouth against the lower end of the cylinder and attach it together with the container. Linder When the push-up clogs, characterized in that positively supplying air into the container from the mouth of the container by reducing the volume of the air pump chamber.
【００１０】[0010]
【作用】本発明液体充填機の充填バルブにおいては、容
器に液タンク内の液体を充填するため、容器の口元を充
填バルブ下端に押当てて容器とともに充填バルブ下端部
を押上げると、容器に液体が供給される前にエアポンプ
室からのエア、実際には押上力に対応した比較的高い圧
力の圧縮エアが容器に供給されるとともに、容器内のエ
アがエア抜き管を通して液タンクの空間に一気に噴射状
態で排出され、この強いエア排出によってエア抜き管内
に残留していた液体がエアとともに液タンク内に強制的
に一挙に戻される。In the filling valve of the liquid filling machine of the present invention, in order to fill the liquid in the liquid tank into the container, when the mouth of the container is pressed against the lower end of the filling valve and the lower end of the filling valve is pushed up together with the container, Before the liquid is supplied, the air from the air pump chamber, actually compressed air of a relatively high pressure corresponding to the pushing force is supplied to the container, and the air inside the container enters the space of the liquid tank through the air vent pipe. The liquid is discharged all at once in a jet state, and due to this strong air discharge, the liquid remaining in the air vent pipe is forcibly returned together with the air into the liquid tank.
【００１１】[0011]
【実施例】本発明液体充填機の充填バルブの一実施例を
図面について説明すると、図１は充填バルブの破断正面
図、図２は図１のII−IIに沿った断面図、図３〜図８は
充填バルブの動作変化図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a filling valve of a liquid filling machine according to the present invention will be described with reference to the drawings. FIG. 1 is a cutaway front view of the filling valve, FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 8 is an operation change diagram of the filling valve.
【００１２】図１及び図２において、液体充填機１の液
タンク２に取付けられた充填バルブ３の本体４の上部に
は、液通路５とエア抜き通路６を互いに干渉しないよう
に形成し、かつ液導入管７を下方に突出させた液充填用
弁体８が弁開閉に対応して上下にスライド可能に取付け
られている。また本体４の下部には、液導入管７と同心
状にエア抜き管９を下方に突出形成し、かつ液充填用弁
体８の液導入管７の外面とに形成されるエア抜き通路６
を広くした中央部において同液導入管７に一体形成した
エア抜き用弁体１０の弁座１１を形成した弁座体１２
が、上下にスライド可能に取付けられている。通常この
弁座体１２は、本体４の外部に設けたスプリング１３の
付勢力により弁座１１は閉状態を保持しており、また弁
座体１２は、その上動により液充填用弁体８を押上げる
ように取付けられている。In FIGS. 1 and 2, a liquid passage 5 and an air bleeding passage 6 are formed above the main body 4 of the filling valve 3 attached to the liquid tank 2 of the liquid filling machine 1 so as not to interfere with each other. In addition, a liquid filling valve body 8 in which the liquid introducing pipe 7 is projected downward is attached so as to be slidable up and down corresponding to opening and closing of the valve. An air vent pipe 9 is formed at the lower part of the main body 4 so as to be concentric with the liquid introduction pipe 7 and projects downward, and the air vent passage 6 is formed on the outer surface of the liquid introduction pipe 7 of the liquid filling valve body 8.
A valve seat body 12 formed with a valve seat 11 of an air bleeding valve body 10 formed integrally with the liquid introducing pipe 7 in the central portion where the width is widened.
Is mounted so that it can slide up and down. Normally, the valve seat body 12 keeps the valve seat 11 in the closed state by the urging force of the spring 13 provided outside the main body 4, and the valve seat body 12 moves upward to cause the liquid filling valve body 8 to move. It is installed so as to push up.
【００１３】更に弁座体１２は、弁座体１２下部とシリ
ンダー１６の間でエアポンプ管１４を形成している。シ
リンダー１６には液導入管７とエア抜き管９を貫通させ
た状態でそれぞれと同心状の圧縮エア噴出孔１５があい
ている。従って容器１７の口元を充填バルブ３の下端、
すなわちシリンダー１６下端に押当てて容器１７ととも
にシリンダー１６を本体４の外部に同心円上に設けたス
プリング１８の付勢力に抗して押上げた状態において、
エアポンプ室１４の容積が縮小して圧縮エア噴出孔１５
から容器１７内にエアを積極供給する。なお１９はエア
ポンプ室１４の容積が増大したときに同室１４内にエア
を吸入するリードバルブ２０付エア吸入孔である。Further, the valve seat body 12 forms an air pump pipe 14 between the lower portion of the valve seat body 12 and the cylinder 16. The cylinder 16 is provided with a compressed air ejection hole 15 which is concentric with the liquid introduction pipe 7 and the air bleeding pipe 9 in a penetrating state. Therefore, the mouth of the container 17 is located at the lower end of the filling valve 3,
That is, in a state in which the cylinder 16 is pressed against the lower end of the cylinder 16 and pushed up together with the container 17 against the biasing force of the spring 18 provided on the outside of the main body 4 on the concentric circle,
The volume of the air pump chamber 14 is reduced and the compressed air ejection holes 15
Air is positively supplied into the container 17 from. Reference numeral 19 is an air suction hole with a reed valve 20 for sucking air into the air pump chamber 14 when the volume of the air pump chamber 14 increases.
【００１４】次にこのような装置の作用を図３〜図８に
示す動作変化図に従って説明する。この液体充填機１の
充填バルブ３において、容器１７に液タンク２内の液体
を充填するため、容器１７の口元を充填バルブ３下端に
当てて、充填バルブ３下端部のシリンダー１６をまだ押
上げていない図３に示す状態では、スプリング１３の付
勢力によって弁座１１が閉じられており、更に液充填用
弁体８もスライド下端に位置した弁閉状態にある。この
自由状態から容器１７とともに充填バルブ３下端部のシ
リンダー１６をスプリング１８の付勢力に抗して押上げ
ると、図４に示すエア圧縮状態のように、まずエアポン
プ室１４の容積が縮小して、容器１７に液体が供給され
る前に、エアポンプ室１４から容器１７押上げピストン
の早い速度に対応した高圧の圧縮エアが圧縮エア噴出孔
１５から容器１７に供給される。シリンダー１６がスプ
リング１８の付勢力に抗して更に押上げられると、図５
に示すベントライン掃気状態のように、弁座体１２がス
プリング１３の付勢力に抗して上昇して弁座１１が開く
のにともない、容器１７内のエアがエア抜き管９を通し
て液タンク２の空間に一気に噴射状態で排出され、この
強いエア排出によって、エア抜き管９内に在留していた
液体がエアとともにエア抜き通路６を通して液タンク２
内に強制的に一挙に戻される。Next, the operation of such a device will be described with reference to the operation change diagrams shown in FIGS. In the filling valve 3 of the liquid filling machine 1, in order to fill the container 17 with the liquid in the liquid tank 2, the mouth of the container 17 is applied to the lower end of the filling valve 3 and the cylinder 16 at the lower end of the filling valve 3 is still pushed up. In the state shown in FIG. 3, which is not shown, the valve seat 11 is closed by the urging force of the spring 13, and the liquid filling valve body 8 is also in the valve closed state in which it is located at the lower end of the slide. When the cylinder 16 at the lower end of the filling valve 3 together with the container 17 is pushed up against the biasing force of the spring 18 from this free state, the volume of the air pump chamber 14 is first reduced as in the air compressed state shown in FIG. Before the liquid is supplied to the container 17, high-pressure compressed air corresponding to the high speed of the container 17 pushing piston is supplied from the air pump chamber 14 to the container 17 from the compressed air ejection hole 15. When the cylinder 16 is further pushed up against the urging force of the spring 18, FIG.
As in the vent line scavenging state shown in FIG. 2, as the valve seat body 12 rises against the biasing force of the spring 13 and the valve seat 11 opens, the air in the container 17 passes through the air vent pipe 9 and the liquid tank 2 The liquid that has remained in the air bleeder tube 9 passes through the air bleeding passage 6 together with the air through the liquid bleeder 6 due to this strong air bleeding.
It is forcibly returned at once.
【００１５】次いで弁座１１開のベントライン掃気状態
を経てシリンダー１６とともに弁座体１２がそれぞれの
スプリング１８，１３の付勢力に抗して更に押上げられ
ると、図６に示す液充填状態のように、液充填用弁体８
が弁座体１２に押上げられることにより上昇して開き、
エア抜き通路６から残留液体が掃気された状態であるこ
とから、容器１７内のエアを液タンク２内の空間にスム
ーズに排出しながら、液タンク２からの液体が液導入管
７を通って容器１７に効率良く短時間に供給される。そ
の後充填は続けられ、液体が液導入管７とエア抜き管９
との連通を遮断した状態において、容器１７に対する液
体供給が自動的に停止され、この停止状態においてエア
抜き管９内には液体が若干上昇して残る。この液充填状
態から容器１７がピストンの下降に従って下がると、シ
リンダー１６と弁座体１２がスプリング１８，１３の付
勢力によって下がって、図７に示すベントライン閉状態
のように、まず弁座１１が閉じるとともに、このエア抜
き弁閉状態において容器１７がピストンの下降に従って
更に下がると、液充填用弁体８が下降し閉じて図３に示
す自由状態と同じ図８の閉状態に戻るとともに、前記同
様の作動が繰返えされる。Next, when the valve seat body 12 together with the cylinder 16 is further pushed up against the urging force of the springs 18 and 13 through the vent line scavenging state in which the valve seat 11 is opened, the liquid filled state shown in FIG. 6 is obtained. So that the liquid filling valve body 8
Is pushed up by the valve seat body 12 to rise and open,
Since the residual liquid is scavenged from the air vent passage 6, the liquid from the liquid tank 2 passes through the liquid introducing pipe 7 while smoothly discharging the air in the container 17 to the space in the liquid tank 2. It is efficiently supplied to the container 17 in a short time. After that, the filling is continued, and the liquid is introduced into the liquid introducing pipe 7 and the air bleeding pipe 9.
The liquid supply to the container 17 is automatically stopped in the state where the communication with is cut off, and in this stopped state, the liquid slightly rises and remains in the air vent pipe 9. When the container 17 descends from the liquid-filled state as the piston descends, the cylinder 16 and the valve seat body 12 descend by the urging force of the springs 18 and 13, and the valve seat 11 is closed first as in the vent line closed state shown in FIG. When the container 17 further lowers as the piston descends in this air bleeding valve closed state, the liquid filling valve body 8 descends and closes and returns to the closed state of FIG. 8 which is the same as the free state shown in FIG. The same operation as described above is repeated.
【００１６】かくしてこのような装置によれば、容器１
７が充填バルブ３下端部を完全に押上げて液充填用弁体
８を完全に開き、液導入管７を通して液タンク２内の液
体が容器１７に充填されるときには、既にエア抜き管９
内に残留液体はなく、液タンク２内の液体を液導入管７
を通して容器１７内にスムーズに供給することができ、
しかもこのエア抜き管９内残留液体の排出動作には液体
を圧縮させるのではなく、エアの圧縮作用を用いている
ため、この排出動作において充填バルブ３を含む液体充
填機１に急激な過大負荷をかけることなく、容器１７に
対する液体充填効率を保持することは勿論のこと、むし
ろ効率を高めることができる効果がある。またスプリン
グ１８をバルブ外部に設けかつ充填用嘴管下端開口縁受
鍔をなくしたため、充填液による圧縮室内の汚染が少な
い。また容器口部受体案内用外套がないため、取扱い容
器寸法が充填バルブ寸法に制約されることがない。更に
エア抜き通路６の一部の断面積を大きくすることによ
り、残液のバランスをくずしやすくしエア抜きの効率が
向上する。Thus, according to such a device, the container 1
7 completely pushes up the lower end of the filling valve 3 to completely open the liquid filling valve body 8 and when the liquid in the liquid tank 2 is filled into the container 17 through the liquid introducing pipe 7, the air bleeding pipe 9 has already been filled.
There is no residual liquid inside and the liquid in the liquid tank 2 is introduced into the liquid introducing pipe 7
Can be smoothly supplied into the container 17 through
Moreover, since the liquid is not compressed in the discharging operation of the residual liquid in the air bleeding tube 9 but the compressing action of the air is used, the liquid filling machine 1 including the filling valve 3 is subjected to a sudden overload in this discharging operation. It is of course possible to maintain the liquid filling efficiency for the container 17 without applying the pressure, and to rather increase the efficiency. Further, since the spring 18 is provided outside the valve and the receiving end of the lower end opening of the filling beak tube is eliminated, the inside of the compression chamber is less contaminated by the filling liquid. Further, since there is no mantle for guiding the container mouth receptacle, the size of the handling container is not restricted by the size of the filling valve. Further, by increasing the cross-sectional area of a part of the air bleeding passage 6, the balance of the residual liquid can be easily broken and the air bleeding efficiency can be improved.
【００１７】[0017]
【発明の効果】要するに本発明によれば、液タンクに垂
設された本体と、上記本体に上下摺動可能に挿通され液
通路及びエア抜き通路が形成されるとともに下方に液導
入管を突出させた液充填用弁体と、下部に上記液導入管
の外側同心状にエア抜き管を突出させ上部は上記本体下
部内面に上下摺動可能に挿通されるとともに常時下方へ
付勢されかつ中央部の液導入管外面と形成するエア抜き
通路を一部広くしエア抜き用弁体とともに弁を構成する
弁座体と、上記弁座体外面に上下摺動可能に外嵌される
とともに常時下方へ付勢されかつ同弁座体下部との間で
エアポンプ室を形成したうえ同弁座体下端のエア抜き管
との間に圧縮エア噴出孔を形成したシリンダーとを具
え、容器の口元を上記シリンダー下端に押当てて容器と
ともに同シリンダーを押上げたとき上記エアポンプ室の
容積を縮小して容器の口元から容器内にエアを積極供給
することにより、容器に対する液体充填効率を低下させ
ることなく、しかも液体を圧縮させることなく、液体充
填開始時にエア抜き管内に残った液体を容易かつスムー
ズに強制排除することができ、かつ衛生的であり、更に
胴径の大きな容器にも容易に対応できる液体充填機の充
填バルブを得るから、本発明は産業上極めて有益なもの
である。In summary, according to the present invention, the main body hung vertically in the liquid tank, the liquid passage and the air vent passage which are vertically slidably inserted into the main body, and the liquid introduction pipe is projected downward. The liquid filling valve body and an air bleeding tube projecting concentrically to the outside of the liquid introducing tube on the lower part, and the upper part is vertically slidably inserted into the inner surface of the lower part of the main body and always urged downward and at the center. Part of the liquid introducing pipe of the above-mentioned part, the air vent passage partially widened to form a valve together with the air vent valve body, and the valve seat body outer surface is fitted on the valve seat body so as to be vertically slidable and always downward. A cylinder that is urged toward and that forms an air pump chamber with the lower portion of the valve seat body and also has a compressed air ejection hole formed between the air pump chamber and the air vent pipe at the lower end of the valve seat body. Press on the bottom of the cylinder and attach it to the container together with the cylinder. When the liquid is pushed up, the volume of the air pump chamber is reduced and the air is positively supplied from the mouth of the container to the inside of the container, so that the liquid filling efficiency to the container is not lowered, and the liquid filling is started without compressing the liquid. The present invention provides a filling valve of a liquid filling machine that can easily and smoothly forcibly remove the liquid remaining in the air bleeding pipe, is sanitary, and can easily cope with a container having a large body diameter. Is extremely useful in industry.
【図１】本発明液体充填機の充填バルブの一実施例の破
断正面図である。FIG. 1 is a cutaway front view of an embodiment of a filling valve of a liquid filling machine of the present invention.
【図２】図１のII−IIに沿った断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】充填バルブの動作変化図である。FIG. 3 is an operation change diagram of the filling valve.
【図４】充填バルブの動作変化図である。FIG. 4 is an operation change diagram of the filling valve.
【図５】充填バルブの動作変化図である。FIG. 5 is an operation change diagram of the filling valve.
【図６】充填バルブの動作変化図である。FIG. 6 is an operation change diagram of the filling valve.
【図７】充填バルブの動作変化図である。FIG. 7 is an operation change diagram of the filling valve.
【図８】充填バルブの動作変化図である。FIG. 8 is an operation change diagram of the filling valve.
【図９】従来の液体自動注入バルブの破断正面図であ
る。FIG. 9 is a cutaway front view of a conventional liquid automatic injection valve.
【図１０】図９のＸ−Ｘに沿った断面図である。10 is a cross-sectional view taken along line XX of FIG.
１ 液体充填機 ２ 液タンク ３ 充填バルブ ４ 本体 ５ 液通路 ６ エア抜き通路 ７ 液導入管 ８ 液充填用弁体 ９ エア抜き管 10 エア抜き用弁体 11 弁座 12 弁座体 13 スプリング 14 エアポンプ室 15 圧縮エア噴出孔 16 シリンダー 17 容器 18 スプリング 19 エア吸入孔 20 リードバルブ 1 Liquid filling machine 2 Liquid tank 3 Filling valve 4 Main body 5 Liquid passage 6 Air vent passage 7 Liquid introduction pipe 8 Liquid filling valve 9 Air vent pipe 10 Air vent valve 11 Valve seat 12 Valve seat 13 Spring 14 Air pump Chamber 15 Compressed air ejection hole 16 Cylinder 17 Container 18 Spring 19 Air intake hole 20 Reed valve
Claims (1)
に上下摺動可能に挿通され液通路及びエア抜き通路が形
成されるとともに下方に液導入管を突出させた液充填用
弁体と、下部に上記液導入管の外側同心状にエア抜き管
を突出させ上部は上記本体下部内面に上下摺動可能に挿
通されるとともに常時下方へ付勢されかつ中央部の液導
入管外面と形成するエア抜き通路を一部広くしエア抜き
用弁体とともに弁を構成する弁座体と、上記弁座体外面
に上下摺動可能に外嵌されるとともに常時下方へ付勢さ
れかつ同弁座体下部との間でエアポンプ室を形成したう
え同弁座体下端のエア抜き管との間に圧縮エア噴出孔を
形成したシリンダーとを具え、容器の口元を上記シリン
ダー下端に押当てて容器とともに同シリンダーを押上げ
たとき上記エアポンプ室の容積を縮小して容器の口元か
ら容器内にエアを積極供給することを特徴とする液体充
填機の充填バルブ。1. A liquid filling valve body having a main body hung vertically from a liquid tank, a liquid passage and an air bleeding passage which are vertically slidably inserted into the main body, and a liquid introducing pipe is projected downward. An air bleeding tube projecting concentrically outside the liquid introducing pipe to the lower part, and the upper part is vertically slidably inserted into the inner surface of the lower part of the main body and constantly urged downward and the outer surface of the liquid introducing pipe in the central part. A valve seat body that forms a valve together with an air bleeding valve body by partially widening an air bleeding path to be formed, and a valve seat body that is externally fitted to the outer surface of the valve seat body in a vertically slidable manner and is always urged downward. A cylinder that has an air pump chamber formed between it and the lower part of the seat, and a compressed air ejection hole is formed between it and the air vent pipe at the lower end of the valve seat, and the mouth of the container is pressed against the lower end of the cylinder. When the same cylinder is pushed up together with the above air pump A filling valve for a liquid filling machine, characterized in that the volume of the chamber is reduced to positively supply air from the mouth of the container into the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19406793A JP3457709B2 (en) | 1993-07-09 | 1993-07-09 | Filling valve for liquid filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19406793A JP3457709B2 (en) | 1993-07-09 | 1993-07-09 | Filling valve for liquid filling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0733195A true JPH0733195A (en) | 1995-02-03 |
| JP3457709B2 JP3457709B2 (en) | 2003-10-20 |
Family
ID=16318412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19406793A Expired - Fee Related JP3457709B2 (en) | 1993-07-09 | 1993-07-09 | Filling valve for liquid filling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3457709B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100759361B1 (en) * | 2006-11-13 | 2007-09-19 | 김경완 | The connect structure of valve to process a angle |
| CN106430066A (en) * | 2016-10-21 | 2017-02-22 | 张家港市万金机械有限公司 | Water filling valve structure |
| WO2018098920A1 (en) * | 2016-11-29 | 2018-06-07 | 江苏新美星包装机械股份有限公司 | Non-contact hot-filling valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809348B (en) * | 2019-04-19 | 2019-09-17 | 安丘市鼎正机械设备有限公司 | A kind of bottle placer plug-in type quantitative filling valve gear |
-
1993
- 1993-07-09 JP JP19406793A patent/JP3457709B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100759361B1 (en) * | 2006-11-13 | 2007-09-19 | 김경완 | The connect structure of valve to process a angle |
| CN106430066A (en) * | 2016-10-21 | 2017-02-22 | 张家港市万金机械有限公司 | Water filling valve structure |
| WO2018098920A1 (en) * | 2016-11-29 | 2018-06-07 | 江苏新美星包装机械股份有限公司 | Non-contact hot-filling valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3457709B2 (en) | 2003-10-20 |
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