JP2007145336A - Filling device and method for fluid - Google Patents

Filling device and method for fluid Download PDF

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JP2007145336A
JP2007145336A JP2005338173A JP2005338173A JP2007145336A JP 2007145336 A JP2007145336 A JP 2007145336A JP 2005338173 A JP2005338173 A JP 2005338173A JP 2005338173 A JP2005338173 A JP 2005338173A JP 2007145336 A JP2007145336 A JP 2007145336A
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valve body
fluid
filling
annular seal
flow
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Minoru Aoki
木 實 青
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling device for filling a container with a fluid, the device being capable of securely stopping a flow of fluid when filling is stopped, thereby preventing a liquid from dripping from a filling nozzle, and to provide a filling method for fluid. <P>SOLUTION: The filling device (b) for a fluid includes in a valve body 1 a valve element 2 for controlling a flow of fluid by opening or closing itself, a guide member 3 for guiding the valve element 2, an annular sealing member 4 disposed downstream of the guide member 3 in the direction of the flow of the fluid, and an elastic member 5 for pressing the valve element 2 toward the annular sealing member 4. The valve element 2 is provided with an abutting portion 2c that has an outer diameter greater than the inner diameter of the annular sealing member 4. Thus, when the container is filled with the fluid, the valve element 2 is lowered and the fluid is caused to flow via the recess 2b of the valve element 2. When filling is stopped, the abutting portion 2c of the valve element 2 is brought into firm contact with the annular sealing member 4 by the elastic force of the elastic member 5, and the fluid is stopped. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、流体を容器に充填する流体充填装置および流体充填方法に関する。 The present invention relates to a fluid filling apparatus and a fluid filling method for filling a container with a fluid.

従来、流体充填装置の内部に設けられた弁を用いて流体の流れを開閉制御する手段として、たとえば図４に示したように案内部材３０内に弁体２０を設け、充填時には弁体２０に設けられた凹部２０ｂと案内部材３０の内壁３０ｃの間隙を通して流体を流通させ（図４（ａ）参照）、充填停止時には弁体２０を移動部材９２により移動させて弁体外周部２０ａと案内部材３０の内壁３０ｃを接触させて流体の流れを遮断し（図４（ｂ）参照）、充填を停止させていた（図４（ｂ）は特許文献１の図５に対応している）。 Conventionally, as a means for controlling the opening and closing of the flow of fluid using a valve provided inside the fluid filling device, for example, a valve body 20 is provided in the guide member 30 as shown in FIG. A fluid is circulated through a gap between the provided recess 20b and the inner wall 30c of the guide member 30 (see FIG. 4A), and when the filling is stopped, the valve body 20 is moved by the moving member 92, and the valve body outer peripheral portion 20a and the guide member are moved. The flow of the fluid was interrupted by contacting the inner wall 30c of 30 (see FIG. 4B), and filling was stopped (FIG. 4B corresponds to FIG. 5 of Patent Document 1).

特願２００４−１８９４５４号Japanese Patent Application No. 2004-189454

しかしながら、前述の流体充填装置においては、充填停止時、弁体２０を移動させて弁体外周部２０ａと案内部材３０の内壁３０ｃを接触させた状態であっても、供給される流体の種類や圧力等によっては案内部材３０の内壁３０ｃと弁体外周部２０ａとの間の僅かな隙間から徐々に流体が漏出して充填ノズルからの液だれを起こすこともあった（図４（ｂ）参照）。 However, in the above-described fluid filling device, even when the valve body 20 is moved and the valve body outer peripheral portion 20a and the inner wall 30c of the guide member 30 are in contact with each other when filling is stopped, Depending on the pressure or the like, the fluid gradually leaks from a slight gap between the inner wall 30c of the guide member 30 and the valve body outer peripheral portion 20a, thereby causing dripping from the filling nozzle (see FIG. 4B). ).

本発明は、上記の問題を解決するためになされたものであり、流体充填装置内において、充填停止時、流体の流れを確実に遮断し、充填ノズルからの液だれを防止できる流体充填装置および流体充填方法を提供するものである。 The present invention has been made in order to solve the above-described problem. In the fluid filling apparatus, when filling is stopped, the fluid flow can be reliably interrupted to prevent dripping from the filling nozzle, and A fluid filling method is provided.

請求項１に係る手段は、流体の流れを開閉制御する弁体を内蔵したバルブ本体と、このバルブ本体内に設けられ、前記弁体を案内する案内部材と、この案内部材の前記流体の流れの下流側に設けられた環状のシール部材と、前記バルブ本体内に設けられ、前記弁体を前記環状のシール部材に向かって付勢する弾性部材と、前記弁体の前記流体の流れの上流側の部位に当接して前記弾性部材により付勢された前記弁体を移動させる移動部材と、この移動部材を進退させる進退手段と、前記バルブ本体の前記弁体より前記流体の流れの下流側に接続され、前記流体を容器に充填する充填ノズルと、を備え、前記弁体は、前記環状のシール部材に当接し前記環状のシール部材の内径よりも大きな外径を有する当接部と、前記当接部より前記流体の流れの上流側にあって前記案内部材と離間して前記流体の流れを許容する凹部と、を備えている流体充填装置である。 According to a first aspect of the present invention, there is provided a valve body including a valve body that controls opening and closing of a fluid flow, a guide member provided in the valve body for guiding the valve body, and the fluid flow of the guide member. An annular seal member provided on the downstream side of the valve body, an elastic member provided in the valve main body for biasing the valve body toward the annular seal member, and upstream of the fluid flow of the valve body A moving member that moves the valve body that is in contact with a portion on the side and that is urged by the elastic member; an advancing / retracting means that moves the moving member forward and backward; and a downstream side of the fluid flow from the valve body of the valve body And a filling nozzle that fills the container with the fluid, and the valve body abuts on the annular seal member and has an outer diameter larger than an inner diameter of the annular seal member; Flow of the fluid from the contact portion , A recess allowing the flow of the fluid In the upstream side apart from the guiding member is a fluid-filled device comprising a.

請求項２に係る手段は、請求項１に記載の流体充填装置であって、環状のシール部材に当接する弁体の当接部は、流体の流れの下流側に向かって漸次拡径するテーパー形状となっている流体充填装置である。 According to a second aspect of the present invention, there is provided the fluid filling device according to the first aspect, wherein the contact portion of the valve body that contacts the annular seal member is a taper that gradually increases in diameter toward the downstream side of the fluid flow. This is a fluid filling device having a shape.

請求項３に係る手段は、流体の流れを開閉制御する弁体を内蔵したバルブ本体と、
このバルブ本体内に設けられ、前記弁体を案内する案内部材と、この案内部材の前記流体の流れの下流側に設けられた環状のシール部材と、前記バルブ本体内に設けられ、前記弁体を前記環状のシール部材に向かって付勢する弾性部材と、前記弁体の前記流体の流れの上流側の部位に当接して前記弾性部材により付勢された前記弁体を移動させる移動部材と、この移動部材を進退させる進退手段と、前記バルブ本体の前記弁体より前記流体の流れの下流側に接続され、前記流体を容器に充填する充填ノズルと、を備え、充填時、前記進退手段により前記移動部材を前進させ、前記弁体を移動し、前記弁体と前記環状のシール部材とを離間させて前記流体を流通させ、前記充填ノズルを介して前記流体を前記容器に充填し、充填停止時、前記進退手段により前記移動部材を後退させ、前記弾性部材により付勢した前記弁体を前記環状のシール部材に密接させて前記流体の流れを遮断し、前記充填ノズルからの前記流体の漏出を防止する流体充填方法である。 The means according to claim 3 includes a valve body having a built-in valve body that controls opening and closing of a fluid flow;
A guide member provided in the valve body and guiding the valve body; an annular seal member provided on the downstream side of the fluid flow of the guide member; and the valve body provided in the valve body. An elastic member that urges the valve body toward the annular seal member, and a moving member that contacts the upstream portion of the fluid flow of the valve body and moves the valve body urged by the elastic member; An advancing / retreating means for advancing and retreating the moving member; and a filling nozzle connected to a downstream side of the flow of the fluid from the valve body of the valve body, and filling the fluid into the container. The moving member is moved forward, the valve body is moved, the valve body and the annular seal member are separated from each other, the fluid is circulated, and the fluid is filled into the container via the filling nozzle, When filling is stopped, Fluid that retracts the moving member by means, closes the valve body biased by the elastic member to the annular seal member, blocks the flow of the fluid, and prevents leakage of the fluid from the filling nozzle It is a filling method.

請求項１に記載の流体充填装置とすることで、案内部材の流体の流れの下流側に設けられた環状のシール部材に弾性部材により付勢した弁体の当接部を密接させて流体の流れを確実に遮断でき、従来の流体充填装置に比べて流体の遮断性能が向上し、充填ノズルからの液だれを防止することができる。 With the fluid filling device according to claim 1, the contact portion of the valve body urged by the elastic member is brought into close contact with the annular seal member provided on the downstream side of the fluid flow of the guide member. The flow can be reliably blocked, the fluid blocking performance is improved as compared with the conventional fluid filling device, and the dripping from the filling nozzle can be prevented.

請求項２に記載の流体充填装置とすることで、請求項１に記載の当接部をテーパー形状とすることにより、弾性部材によって付勢した弁体が流体の流れの上流側に移動するほど環状のシール部材への密着性が高まるため、流体の遮断性能がいっそう向上し、充填ノズルからの液だれを防止することができる。 By making the fluid filling device according to claim 2 into a tapered shape, the valve body urged by the elastic member moves to the upstream side of the fluid flow. Since the adhesion to the annular seal member is enhanced, the fluid blocking performance is further improved, and dripping from the filling nozzle can be prevented.

請求項３に記載の流体充填方法とすることで、充填停止時、弁体の当接部が弾性部材の弾性力により環状のシール部材に密接して流体の流れを確実に遮断できるため、従来の流体充填方法に比べて流体の遮断性能が向上し、充填ノズルからの液だれを防止することができる。 By using the fluid filling method according to claim 3, when the filling is stopped, the contact portion of the valve body can be in close contact with the annular seal member by the elastic force of the elastic member, so that the fluid flow can be reliably blocked. Compared with this fluid filling method, the fluid blocking performance is improved, and dripping from the filling nozzle can be prevented.

本発明の実施の形態を、図１乃至図３に基づき説明する。 An embodiment of the present invention will be described with reference to FIGS.

図１においてａは流体充填装置であり、この流体充填装置ａは供給された例えば液体などの流体を容器ｃに充填し、所定量の流体を充填し終わると流体の流れを遮断し充填を停止するものである。 In FIG. 1, a is a fluid filling device, and this fluid filling device a fills a container c with a supplied fluid such as a liquid, and when filling a predetermined amount of fluid, the fluid flow is interrupted and filling is stopped. To do.

この流体充填装置ａは、バルブ本体１と、このバルブ本体１の上方に設けられた進退手段ｂと、バルブ本体１の下方に設けられた充填ノズル８とを有している。 The fluid filling device a includes a valve body 1, advance / retreat means b provided above the valve body 1, and a filling nozzle 8 provided below the valve body 1.

前述のバルブ本体１には、充填する流体をこのバルブ本体１内に供給するための流体供給管１４が接続され、バルブ本体１内には、流体を流通および遮断するための案内部材３、弁体２、弾性部材５が設けられている。 A fluid supply pipe 14 for supplying a fluid to be filled into the valve body 1 is connected to the valve body 1, and a guide member 3 for circulating and blocking the fluid is provided in the valve body 1. A body 2 and an elastic member 5 are provided.

図２にバルブ本体１に内蔵した案内部材３、弁体２および弾性部材５の分解斜視図を示した。 FIG. 2 shows an exploded perspective view of the guide member 3, the valve body 2 and the elastic member 5 built in the valve body 1.

案内部材３は、案内部材３の入口部３ｄから案内部材３の出口部３ｅに向かって流体を流通するための円筒状の管３ａを有しており、この円筒状の管３ａの流体の流れの下流方向の内周縁３ｂに設けられた凹部には環状のシール部材４（例えば、Ｏリングなど）が周設されている。この環状のシール部材４の材料は流体の種類によって使い分けられるが、例えば耐薬品性や耐熱性に優れた合成ゴムなどが用いられる。 The guide member 3 has a cylindrical tube 3a for flowing a fluid from the inlet 3d of the guide member 3 toward the outlet 3e of the guide member 3, and the flow of the fluid in the cylindrical tube 3a. An annular seal member 4 (for example, an O-ring or the like) is provided around the recess provided in the inner peripheral edge 3b in the downstream direction. The material of the annular seal member 4 can be selected depending on the type of fluid. For example, synthetic rubber having excellent chemical resistance and heat resistance is used.

前述の弁体２は、案内部材３の円筒状の管３ａの内部に進退自在となるように設けられるものであり、全周に渡って案内部材３の内壁３ｃに当接する弁体外周部２ａと、この弁体外周部２ａよりも流体の流れの上流側に位置し案内部材３の内壁３ｃから離間して弁体２の長手方向に沿って設けられた複数の凹部２ｂ、２ｂ、・・と、弁体外周部２ａよりも流体の流れの下流側には案内部材３の円筒状の管３ａの内径よりも大きな外径を有する環状のシール部材４に当接する当接部２ｃを備えている。この当接部２ｃは、図３（ａ）、（ｂ）に示すように、流体の流れの下流側に向かって漸次拡径するテーパー形状とすることが好ましい。弁体２が流体の流れの上流側に移動するほど環状のシール部材４への密着性が高まるためであり、流体の遮断性能がいっそう向上するからである。さらに、この当接部２ｃの流体の流れの下流側には後述する弾性部材５を支承するバネ座２ｄが流体の流れの下流側に突出するように設けられている。なお、弁体２の上端中心部には図２に示したように凹部２ｅを設けることが好ましい。後述する移動部材９の先端に設けられた押部によって押力を加えた際の弁体２の軸ブレを防止するためである。 The valve body 2 is provided inside the cylindrical tube 3a of the guide member 3 so as to be able to advance and retreat, and the valve body outer peripheral portion 2a that contacts the inner wall 3c of the guide member 3 over the entire circumference. And a plurality of recesses 2b, 2b, which are located on the upstream side of the fluid flow from the valve body outer peripheral portion 2a and spaced from the inner wall 3c of the guide member 3 along the longitudinal direction of the valve body 2. And a contact portion 2c that contacts an annular seal member 4 having an outer diameter larger than the inner diameter of the cylindrical tube 3a of the guide member 3 on the downstream side of the fluid flow from the valve body outer peripheral portion 2a. Yes. As shown in FIGS. 3A and 3B, the contact portion 2c preferably has a tapered shape that gradually increases in diameter toward the downstream side of the fluid flow. This is because the closer the valve body 2 moves to the upstream side of the fluid flow, the higher the adhesion to the annular seal member 4, and thus the fluid blocking performance is further improved. Further, a spring seat 2d for supporting an elastic member 5 described later is provided on the downstream side of the fluid flow of the contact portion 2c so as to protrude downstream of the fluid flow. In addition, it is preferable to provide the recessed part 2e in the upper-end center part of the valve body 2 as shown in FIG. This is to prevent shaft blurring of the valve body 2 when a pressing force is applied by a pressing portion provided at the distal end of the moving member 9 described later.

前述の弾性部材５は、弁体２のバネ座２ｄに当接して弁体２を流体の流れの上流側に付勢し弁体２の当接部２ｃを環状のシール部材４に押し当てるものであり、例えば図２に示すようにバネなどが用いられる。 The aforementioned elastic member 5 abuts against the spring seat 2d of the valve body 2 to urge the valve body 2 to the upstream side of the fluid flow, and presses the contact portion 2c of the valve body 2 against the annular seal member 4. For example, as shown in FIG. 2, a spring or the like is used.

さらに、図１に示したように弾性部材５よりも流体の流れの下流側には連結部材６が設けられている。この連結部材６は前述の弾性部材５を支承する凸状のバネ座６ｂと、充填する流体を流通するための通孔６ａ、６ａ、・・を備えており、覆体７１によって案内部材３およびバルブ本体１に固定されている。なお、この覆体７１にはノズルホルダ８２を介して充填ノズル８が接続されている。 Further, as shown in FIG. 1, a connecting member 6 is provided downstream of the elastic member 5 in the fluid flow. The connecting member 6 includes a convex spring seat 6b for supporting the elastic member 5 and through holes 6a, 6a,... For circulating a fluid to be filled. It is fixed to the valve body 1. Note that the filling nozzle 8 is connected to the cover 71 via a nozzle holder 82.

次に移動部材９および進退手段ｂについて説明する。図１に示したように、移動部材９はバルブ本体１の上方に設けられ、後述する進退手段ｂにより上下方向に移動するものであり、下端は漸次縮径して先端に下向きに凸状の押部を有している。この押部が前述の弁体２の凹部２ｅに当接して弁体２を弾性部材５の弾性力に抗して下方へ移動させる働きをする。 Next, the moving member 9 and the advance / retreat means b will be described. As shown in FIG. 1, the moving member 9 is provided above the valve body 1 and is moved in the vertical direction by the advancing / retreating means b described later. The lower end is gradually reduced in diameter and convex downward at the tip. It has a push part. The pressing portion abuts on the concave portion 2e of the valve body 2 described above and functions to move the valve body 2 downward against the elastic force of the elastic member 5.

進退手段ｂはたとえば圧縮空気を利用して移動部材９を上下に進退させるものであり、移動部材９上部のフランジ部９ａの下面９ｂに作用して移動部材９を上昇させたり、フランジ部９ａの上面９ｃに作用して移動部材９を下降させたりする。具体的には、進退手段ｂはフランジ部９ａの下面９ｂに圧縮空気を作用させるためのガイド筒１０を備え、このガイド筒１０とバルブ本体１と移動部材９とにより囲まれた空間に空気室１０ａおよび空気室１０ｂを形成し、移動部材９の上昇時にはバルブ本体１に接続された通気管１１を介して供給された圧縮空気を空気室１０ａ、通気孔１０ｃ、空気室１０ｂの順路で送気してフランジ部９ａの下面９ｂを押圧して移動部材９を上方に移動させることができる。一方、フランジ部９ａの上面側には移動部材９とバルブ本体１に接続した覆体７２とに囲まれた空間に空気室１０ｄが設けられ、移動部材９の下降時には覆体７２に接続された通気管１２を介して供給された圧縮空気を空気室１０ｄに送気し、フランジ部９ａの上面９ｃを押圧して移動部材９を下方に移動させることができる。 The advancing / retreating means b is for moving the moving member 9 up and down by using, for example, compressed air, and acts on the lower surface 9b of the flange portion 9a on the moving member 9 to raise the moving member 9 or The moving member 9 is lowered by acting on the upper surface 9c. Specifically, the advancing / retracting means b includes a guide cylinder 10 for allowing compressed air to act on the lower surface 9b of the flange portion 9a, and an air chamber is formed in a space surrounded by the guide cylinder 10, the valve body 1, and the moving member 9. 10a and an air chamber 10b are formed, and when the moving member 9 is lifted, compressed air supplied through the vent pipe 11 connected to the valve body 1 is sent through the air chamber 10a, the vent hole 10c, and the air chamber 10b in the normal path. Then, the lower surface 9b of the flange portion 9a can be pressed to move the moving member 9 upward. On the other hand, on the upper surface side of the flange portion 9a, an air chamber 10d is provided in a space surrounded by the moving member 9 and the cover 72 connected to the valve body 1, and is connected to the cover 72 when the moving member 9 is lowered. The compressed air supplied through the vent pipe 12 is sent to the air chamber 10d, and the moving member 9 can be moved downward by pressing the upper surface 9c of the flange portion 9a.

なお、１３は移動部材９の移動を規制するためのストッパーであり、移動部材９が上昇したときにストッパー１３の下端部を移動部材９の上部に当接させて移動部材９の上昇を止めるものである。このストッパー１３を設けることにより移動部材９の過度な上昇を抑えることができ、上下動のストロークを短くして弁体２の開閉動作を素早くさせることができる。 Reference numeral 13 denotes a stopper for restricting the movement of the moving member 9. When the moving member 9 is raised, the lower end portion of the stopper 13 is brought into contact with the upper portion of the moving member 9 to stop the raising of the moving member 9. It is. Providing this stopper 13 can suppress an excessive rise of the moving member 9, shorten the vertical movement stroke, and allow the valve body 2 to open and close quickly.

次に、上記構成に係る流体充填装置ａの動作について説明する。充填停止時には図示していない送気手段により通気管１１を介して圧縮空気が流体充填装置ａに供給されており、前述のようにフランジ部９ａの下面９ｂが押圧され、通気管１２を介して空気室１０ｄ内の空気を排出し移動部材９が上昇している。そのため図３（ｂ）に示したように移動部材９の下端の押部は弁体２の上端から離間しており、弾性部材５により付勢した弁体２の当接部２ｃが環状のシール部材４に密接し、案内部材３の出口部３ｅが塞がれて流体の流れが遮断されている。 Next, the operation of the fluid filling apparatus a according to the above configuration will be described. When the filling is stopped, compressed air is supplied to the fluid filling device a via the vent pipe 11 by an air supply means (not shown), and the lower surface 9b of the flange portion 9a is pressed as described above, via the vent pipe 12. The air in the air chamber 10d is discharged and the moving member 9 is raised. Therefore, as shown in FIG. 3B, the pressing portion at the lower end of the moving member 9 is separated from the upper end of the valve body 2, and the contact portion 2c of the valve body 2 biased by the elastic member 5 is an annular seal. Close to the member 4, the outlet 3 e of the guide member 3 is closed to block the fluid flow.

充填停止状態から充填への移行は前述の送気手段を切り替えることによって行われる。すなわち、圧縮空気の送気を通気管１２を通して行うと同時に通気管１１から空気の排気を行うことによりフランジ部９ａの上面９ｃにかかった圧縮空気の押圧により移動部材９が下降し、図３（ａ）に示したように移動部材９の下端の押部が弁体２の上端に当接し、弾性部材５により付勢した弁体２を弾性部材５の弾性力に抗して押し下げる。このとき弁体２の当接部２ｃは環状のシール部材４から離間し、案内部材３の出口部３ｅが開口するため、弁体２の凹部２ｂを介して案内部材３の出口部３ｅから流体が流出し、連結部材６の通孔６ａを介して充填ノズル８の吐出孔８ａから所定量の流体が吐出して容器ｃに充填される。 The transition from the filling stop state to the filling is performed by switching the above-mentioned air supply means. That is, when the compressed air is supplied through the vent pipe 12 and the air is exhausted from the vent pipe 11, the moving member 9 is lowered by the pressure of the compressed air applied to the upper surface 9c of the flange portion 9a. As shown in a), the pressing portion at the lower end of the moving member 9 comes into contact with the upper end of the valve body 2 and pushes down the valve body 2 biased by the elastic member 5 against the elastic force of the elastic member 5. At this time, the contact portion 2c of the valve body 2 is separated from the annular seal member 4 and the outlet portion 3e of the guide member 3 is opened, so that the fluid flows from the outlet portion 3e of the guide member 3 through the concave portion 2b of the valve body 2. Flows out, and a predetermined amount of fluid is discharged from the discharge hole 8a of the filling nozzle 8 through the through hole 6a of the connecting member 6 and filled into the container c.

充填状態から充填停止への移行は前述の送気手段を切り替えることによって行われる。すなわち、圧縮空気の送気を通気管１１を介して行うと同時に通気管１２から空気の排気を行うことによりフランジ部９ａの下面９ｂが押圧されて移動部材９が上昇し、図３（ｂ）に示したように移動部材９の下端の押部が弁体２の上端から離間するため、弁体２は弾性部材５の弾性力により上昇して弁体２の当接部２ｃが環状のシール部材４に密接し、流体の流れが遮断されて充填が完了する。なお、図示していない容器移動手段により順次容器ｃ、ｃ、・・が入れ替えられ、前述の動作が繰り返されて各容器ｃに所定量の流体が充填される。 The transition from the filling state to the filling stop is performed by switching the above-mentioned air supply means. That is, when the compressed air is supplied through the vent pipe 11 and the air is exhausted from the vent pipe 12, the lower surface 9b of the flange portion 9a is pressed and the moving member 9 is lifted, and FIG. As shown in FIG. 3, the pushing portion at the lower end of the moving member 9 is separated from the upper end of the valve body 2, so that the valve body 2 is raised by the elastic force of the elastic member 5, and the contact portion 2c of the valve body 2 is an annular seal. In close contact with the member 4, the fluid flow is interrupted and the filling is completed. The containers c, c,... Are sequentially replaced by container moving means (not shown), and the above-described operation is repeated to fill each container c with a predetermined amount of fluid.

ここで、前述の流体の流れの遮断について詳述すると、図３（ａ）に示した流体の流通状態から図３（ｂ）に示した流体の停止状態に至るまでの間には以下に示すような過程を経る。すなわち、図３（ａ）に示した状態から弁体２が上昇を開始すると、まず弁体２の凹部２ｂの下端が環状のシール部材４の内側面に接触し、案内部材３の出口部３ｅが閉じられ流体の流れが停止する。その後、弁体外周部２ａと環状のシール部材４および案内部材３の内壁３ｃとが接触しながら弁体２が上昇するため、弁体２よりも下流側（充填ノズル８側）は負圧となり充填ノズル８内に残留している流体は上流側（弁体２側）に吸引される。そして、更に弁体２が上昇すると当接部２ｃが環状のシール部材４に密接し、弁体２の上昇は停止する。 Here, the above-described blockage of the fluid flow will be described in detail. The following is a period from the fluid flow state shown in FIG. 3A to the fluid stop state shown in FIG. It goes through a process like this. That is, when the valve body 2 starts to rise from the state shown in FIG. 3A, first, the lower end of the concave portion 2 b of the valve body 2 comes into contact with the inner surface of the annular seal member 4, and the outlet portion 3 e of the guide member 3. Is closed and the flow of fluid stops. Thereafter, the valve body 2 rises while the outer peripheral portion 2a of the valve body is in contact with the annular seal member 4 and the inner wall 3c of the guide member 3, so that the downstream side (filling nozzle 8 side) of the valve body 2 becomes negative pressure. The fluid remaining in the filling nozzle 8 is sucked upstream (valve body 2 side). When the valve body 2 further rises, the contact portion 2c comes into close contact with the annular seal member 4, and the rise of the valve body 2 stops.

したがって、再び移動部材９が下降して弁体２を押し下げない限り弁体２の当接部２ｃと環状のシール部材４の密接状態は弾性部材５の弾性力によって維持されるため、充填ノズル８内の流体は上流側（弁体２側）に吸引した状態が保たれ、流体が充填ノズル８の吐出孔８ａから流出して液だれを起こすことはない。 Therefore, unless the moving member 9 descends again and pushes down the valve body 2, the close contact state between the contact portion 2 c of the valve body 2 and the annular seal member 4 is maintained by the elastic force of the elastic member 5. The fluid inside is kept sucked to the upstream side (valve element 2 side), and the fluid does not flow out from the discharge hole 8a of the filling nozzle 8 and cause dripping.

なお、送気手段からの圧縮空気の送気が停止して進退手段ｂの動作が解除された場合であっても弾性部材５の弾性力により弁体２の当接部２ｃと環状のシール部材４の密接状態が維持されるため、流体充填装置ａに供給される流体の圧力によっても弁体２が押し下げられることはなく、流体が吐出孔８ａから流出して液だれを生ずることはない。 Even when the supply of compressed air from the air supply means is stopped and the operation of the advance / retreat means b is released, the contact portion 2c of the valve body 2 and the annular seal member by the elastic force of the elastic member 5 4 is maintained, the valve body 2 is not pushed down by the pressure of the fluid supplied to the fluid filling device a, and the fluid does not flow out from the discharge hole 8a and cause dripping.

本発明の一実施例を示す充填時の流体充填装置の垂直断面図である。It is a vertical sectional view of the fluid filling apparatus at the time of filling showing an example of the present invention. 図１の流体充填装置に内蔵した案内部材、弁体、弾性部材の分解斜視図である。It is a disassembled perspective view of the guide member, valve body, and elastic member which were built in the fluid filling apparatus of FIG. 図１の流体充填装置の弁体の開閉状態を示す図であり、図３（ａ）は充填時の一部断面図、図３（ｂ）は充填停止時の一部断面図である。FIGS. 3A and 3B are views showing an open / close state of the valve body of the fluid filling apparatus in FIG. 1, FIG. 3A being a partial cross-sectional view at the time of filling, and FIG. 従来の流体充填装置を説明するための図であり、図４（ａ）は充填時の一部断面図、図４（ｂ）は充填停止時の一部断面図である。It is a figure for demonstrating the conventional fluid filling apparatus, FIG. 4 (a) is a partial cross section figure at the time of filling, FIG.4 (b) is a partial cross section figure at the time of a filling stop.

符号の説明Explanation of symbols

１ バルブ本体
２ 弁体
２ｃ 当接部
３ 案内部材
４ 環状のシール部材
５ 弾性部材
６ 連結部材
８ 充填ノズル
９ 移動部材 DESCRIPTION OF SYMBOLS 1 Valve main body 2 Valve body 2c Contact part 3 Guide member 4 Annular seal member 5 Elastic member 6 Connecting member 8 Filling nozzle 9 Moving member

Claims (3)

流体の流れを開閉制御する弁体を内蔵したバルブ本体と、
このバルブ本体内に設けられ、前記弁体を案内する案内部材と、
この案内部材の前記流体の流れの下流側に設けられた環状のシール部材と、
前記バルブ本体内に設けられ、前記弁体を前記環状のシール部材に向かって付勢する弾性部材と、
前記弁体の前記流体の流れの上流側の部位に当接して前記弾性部材により付勢された前記弁体を移動させる移動部材と、
この移動部材を進退させる進退手段と、
前記バルブ本体の前記弁体より前記流体の流れの下流側に接続され、前記流体を容器に充填する充填ノズルと、
を備え、
前記弁体は、
前記環状のシール部材に当接し前記環状のシール部材の内径よりも大きな外径を有する当接部と、
前記当接部より前記流体の流れの上流側にあって前記案内部材と離間して前記流体の流れを許容する凹部と、
を備えていることを特徴とする流体充填装置。 A valve body with a built-in valve body that controls opening and closing of the fluid flow;
A guide member provided in the valve body for guiding the valve body;
An annular seal member provided downstream of the fluid flow of the guide member;
An elastic member provided in the valve body and biasing the valve body toward the annular seal member;
A moving member that moves the valve body biased by the elastic member in contact with the upstream side of the fluid flow of the valve body;
Advancing and retracting means for advancing and retracting the moving member;
A filling nozzle that is connected to the downstream side of the flow of the fluid from the valve body of the valve body, and fills the container with the fluid;
With
The valve body is
A contact portion that contacts the annular seal member and has an outer diameter larger than the inner diameter of the annular seal member;
A recess that is upstream of the fluid flow from the contact portion and is spaced apart from the guide member to allow the fluid flow;
A fluid filling device comprising: 環状のシール部材に当接する弁体の当接部は、流体の流れの下流側に向かって漸次拡径するテーパー形状となっていることを特徴とする請求項1に記載の流体充填装置。 2. The fluid filling device according to claim 1, wherein the contact portion of the valve body that contacts the annular seal member has a tapered shape that gradually increases in diameter toward the downstream side of the fluid flow. 流体の流れを開閉制御する弁体を内蔵したバルブ本体と、
このバルブ本体内に設けられ、前記弁体を案内する案内部材と、
この案内部材の前記流体の流れの下流側に設けられた環状のシール部材と、
前記バルブ本体内に設けられ、前記弁体を前記環状のシール部材に向かって付勢する弾性部材と、
前記弁体の前記流体の流れの上流側の部位に当接して前記弾性部材により付勢された前記弁体を移動させる移動部材と、
この移動部材を進退させる進退手段と、
前記バルブ本体の前記弁体より前記流体の流れの下流側に接続され、前記流体を容器に充填する充填ノズルと、
を備え、
充填時、前記進退手段により前記移動部材を前進させ、前記弁体を移動し、前記弁体と前記環状のシール部材とを離間させて前記流体を流通させ、前記充填ノズルを介して前記流体を前記容器に充填し、
充填停止時、前記進退手段により前記移動部材を後退させ、前記弾性部材により付勢した前記弁体を前記環状のシール部材に密接させて前記流体の流れを遮断し、前記充填ノズルからの前記流体の漏出を防止することを特徴とする流体充填方法。 A valve body with a built-in valve body that controls opening and closing of the fluid flow;
A guide member provided in the valve body for guiding the valve body;
An annular seal member provided downstream of the fluid flow of the guide member;
An elastic member provided in the valve body and biasing the valve body toward the annular seal member;
A moving member that moves the valve body biased by the elastic member in contact with the upstream side of the fluid flow of the valve body;
Advancing and retracting means for advancing and retracting the moving member;
A filling nozzle that is connected to the downstream side of the flow of the fluid from the valve body of the valve body and fills the container with the fluid;
With
At the time of filling, the moving member is advanced by the advancing and retracting means, the valve body is moved, the valve body and the annular seal member are separated from each other, the fluid is circulated, and the fluid is passed through the filling nozzle. Filling the container,
When the filling is stopped, the moving member is moved backward by the advancing and retracting means, the valve body biased by the elastic member is brought into close contact with the annular seal member, the flow of the fluid is shut off, and the fluid from the filling nozzle A fluid filling method characterized by preventing leakage of water.
JP2005338173A 2005-11-24 2005-11-24 Filling device and method for fluid Pending JP2007145336A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102923630A (en) * 2012-10-23 2013-02-13 张立锋 Automatic leaking-stoppage drip-proof filling discharge device
WO2019147075A1 (en) * 2018-01-26 2019-08-01 (주)엔에스 Injection nozzle assembly, and apparatus and method for manufacturing secondary battery using same
CN114746359A (en) * 2019-11-29 2022-07-12 伊莱弗莱克斯希贝股份有限公司 Filling valve with leakage-proof device
US11999610B2 (en) 2019-11-29 2024-06-04 Elaflex Hiby Gmbh & Co. Kg Filling valve with leakage protection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153401A (en) * 1987-10-26 1989-06-15 Elopak As Valve gear controlling flow of liquid
JPH06255698A (en) * 1993-02-25 1994-09-13 Shizukou Kk Filling valve for fluid filling machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153401A (en) * 1987-10-26 1989-06-15 Elopak As Valve gear controlling flow of liquid
JPH06255698A (en) * 1993-02-25 1994-09-13 Shizukou Kk Filling valve for fluid filling machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102923630A (en) * 2012-10-23 2013-02-13 张立锋 Automatic leaking-stoppage drip-proof filling discharge device
CN102923630B (en) * 2012-10-23 2015-02-25 广州市美驰化妆品有限公司 Automatic leaking-stoppage drip-proof filling discharge device
WO2019147075A1 (en) * 2018-01-26 2019-08-01 (주)엔에스 Injection nozzle assembly, and apparatus and method for manufacturing secondary battery using same
CN114746359A (en) * 2019-11-29 2022-07-12 伊莱弗莱克斯希贝股份有限公司 Filling valve with leakage-proof device
US11603309B2 (en) 2019-11-29 2023-03-14 Elaflex Hiby Gmbh & Co. Kg Filling valve with leakage protection device
CN114746359B (en) * 2019-11-29 2023-05-16 伊莱弗莱克斯希贝股份有限公司 Filling valve with leakage-proof device
US11999610B2 (en) 2019-11-29 2024-06-04 Elaflex Hiby Gmbh & Co. Kg Filling valve with leakage protection device

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