JP6424530B2

JP6424530B2 - Fluid discharge device

Info

Publication number: JP6424530B2
Application number: JP2014188589A
Authority: JP
Inventors: 栗林　延全; 延全栗林
Original assignee: Yokohama Rubber Co Ltd
Current assignee: Yokohama Rubber Co Ltd
Priority date: 2014-09-17
Filing date: 2014-09-17
Publication date: 2018-11-21
Anticipated expiration: 2034-09-17
Also published as: JP2016060505A

Description

本発明は流動体を吐出する流動体吐出装置に関する。 The present invention relates to a fluid discharge device for discharging a fluid.

従来から、建築資材に用いられるシーリング材や接着剤などの粘性を有する流動体を充填袋に充填する流動体吐出装置が提供されている（特許文献１参照）。
流動体吐出装置は、流動体が供給される供給口と、流動体を吐出する吐出口を有するノズル本体と、吐出口の開閉を可能とした弁体とを備えている。
吐出口は、筒状壁の長手方向の端部内周部に設けられたノズル本体側内周面で構成されている。
弁体は、弁体本体と、弁体本体の軸心方向の端部の外周部に設けられノズル本体側内周面に係合可能な弁体側外周面とを有している。
そして、流動体が供給口からノズル本体に供給された状態で、ノズル本体側内周面と弁体側外周面とが離間することで吐出口が開放され吐出口から流動体の吐出がなされる。
また、ノズル本体側内周面と弁体側外周面とが係合することで吐出口が閉塞され、吐出口からの流動体の吐出が停止される。
流動体の充填袋への充填は以下のようになされる。
すなわち、ノズル本体の吐出口を下方に向けると共に、ノズル本体を充填袋の開口部から内部に挿入し、吐出口を開放させて流動体を開口部から充填袋の内部に吐出させ充填する。
一定量の流動体が充填袋に充填されたならば、吐出口を閉塞して流動体の吐出を停止したのち、ノズル本体を充填袋の開口部から抜き出し、開口部をシールして充填袋を密封する。 BACKGROUND ART Conventionally, there has been provided a fluid discharge device for filling a filling bag with a fluid having viscosity such as a sealing material or an adhesive used for a building material (see Patent Document 1).
The fluid discharge device includes a supply port to which the fluid is supplied, a nozzle main body having a discharge port for discharging the fluid, and a valve body capable of opening and closing the discharge port.
The discharge port is constituted by an inner peripheral surface on the nozzle body side provided on an inner peripheral portion at an end of the cylindrical wall in the longitudinal direction.
The valve body has a valve body and an outer peripheral surface provided on an outer peripheral portion of an end portion in the axial direction of the valve body and engageable with an inner peripheral surface on the nozzle body side.
Then, in a state where the fluid is supplied from the supply port to the nozzle body, the discharge port is opened by separating the nozzle body side inner peripheral surface from the valve body side outer peripheral surface, and the fluid is discharged from the discharge port.
Further, the discharge port is closed by the engagement of the nozzle body side inner peripheral surface and the valve body side outer peripheral surface, and the discharge of the fluid from the discharge port is stopped.
The filling of the fluid into the filling bag is performed as follows.
That is, the discharge port of the nozzle body is directed downward, and the nozzle body is inserted into the inside of the filling bag through the opening, and the discharge port is opened to discharge and fill the fluid from the opening into the filling bag.
After a certain amount of fluid is filled in the filling bag, the discharge port is closed to stop discharging the fluid, and then the nozzle body is extracted from the opening of the filling bag and the opening is sealed to fill the filling bag. Seal it.

ところで、吐出口の閉塞時、ノズル本体側内周面と弁体側外周面とが係合すると、弁体側外周面から垂れ下がる流動体によって下方に凸の半球面状の膜体が形成され、流動体が液垂れする場合がある。
液垂れした流動体が充填袋の開口部の内側部分、すなわち、互いに接合される部分に付着すると、開口部がシールされても開口部のシールされた部分に流動体が介在するため、シールが不完全なものとなり、充填袋の密閉性が損なわれるおそれがある。 By the way, when the discharge port is closed, if the inner peripheral surface on the nozzle body side and the outer peripheral surface on the valve body are engaged, a downwardly projecting hemispherical membrane is formed by the fluid hanging down from the outer peripheral surface on the valve body side. May drip.
When the dripped fluid adheres to the inner part of the opening of the filling bag, ie, the part to be joined, the seal intervenes because the fluid intervenes in the sealed part of the opening even if the opening is sealed. It may be incomplete and the sealability of the filling bag may be impaired.

そこで、上記従来技術では、弁体本体に、弁体本体の端面部の中央に噴出口として開口された流路を設け、吐出口を閉塞した際に、圧縮空気などの流体を流路から噴出口を介して噴出させることで弁体側外周面から垂れ下がる下方に凸の半球面状の膜体が形成されることを阻止するようにしている。 Therefore, in the above-mentioned prior art, the valve body main body is provided with a flow passage opened as a jet outlet at the center of the end face portion of the valve body, and when the discharge port is closed, fluid such as compressed air is ejected from the flow passage. By ejecting through the outlet, it is possible to prevent the formation of a downwardly-projecting hemispherical film body hanging down from the outer peripheral surface on the valve body side.

特開２００３−２３７８９５号公報Unexamined-Japanese-Patent No. 2003-237895

しかしながら、上記従来技術では、吐出口を閉塞した際に、下方に凸の半球面状の膜体の形成を阻止できるものの、流動体が弁体本体の端面部に回り込んで付着して溜まり、溜まった流動体が液垂れする場合がある。
すなわち、噴出口から流体が弁体本体の端面部から噴出されたとしても、流体は端面部に対して直交する方向で下方に噴出されるため、弁体本体の端面部に付着した流動体に対して当たりにくく、付着した流動体を吹き飛ばす効果が乏しいため改善の余地がある。
本発明は、下方に凸の半球面状の膜体の形成を阻止するための流体に着目して案出されたものであり、その目的は、下方に凸の半球面状の膜体の形成を阻止するための流体を利用して流動体の液垂れを防止し、充填袋の密閉性を高める上で有利な流動体吐出装置を提供することにある。 However, in the above-mentioned prior art, when the discharge port is closed, the formation of a downwardly projecting hemispherical membrane can be prevented, but the fluid wraps around and adheres to the end face portion of the valve body, The accumulated fluid may drip.
That is, even if the fluid is ejected from the end face of the valve body from the ejection port, the fluid is ejected downward in the direction orthogonal to the end face, so the fluid attached to the end face of the valve body is There is room for improvement because it is difficult to hit and has a poor effect of blowing away the adhering fluid.
The present invention has been devised focusing on a fluid for preventing the formation of a downwardly convex hemispherical membrane, and the purpose thereof is to form a downwardly convex hemispherical membrane. It is an object of the present invention to provide a fluid discharge device that is advantageous in preventing dripping of the fluid by using a fluid for preventing fluid leakage and enhancing the tightness of the filling bag.

上述の目的を達成するため、請求項１記載の発明は、粘性を有する流動体の吐出口がその下端に設けられた筒状壁を有するノズル本体と、前記吐出口の開閉を可能とした弁体とを備え、前記吐出口は、前記筒状壁の長手方向の端部内周部に設けられたノズル本体側内周面で構成され、前記弁体は、弁体本体と、前記弁体本体の軸心方向の端部の外周部に設けられ前記ノズル本体側内周面に係合可能な弁体側外周面と、前記弁体本体の軸心方向の端部で前記弁体本体の軸心に対して直交する方向に延在する端面部と、前記弁体本体に設けられ前記端面部の中央に噴出口として開口された流路とを有し、前記ノズル本体の下方に離れた箇所から前記弁体本体が上昇し前記ノズル本体側内周面と前記弁体側外周面とが係合することで前記吐出口が閉塞され、前記弁体本体が下降して前記ノズル本体から離れていき前記ノズル本体側内周面と前記弁体側外周面とが離間することで前記吐出口が開放され、前記吐出口の閉塞時に、前記弁体本体の外周部から垂れ下がる前記流動体による下方に凸の半球面状の膜体が形成されることを前記噴出口から噴出される流体により阻止するようにした流動体吐出装置であって、前記噴出口から噴出される流体の移動方向を前記端面部の外周部に向けて変更し前記端面部に付着した流動体を前記弁体外に吹き飛ばす流体進路変更部材が設けられ、前記ノズル本体側内周面は、前記筒状壁の先端に至るにつれて内径が次第に大きくなる傾斜面で形成され、前記弁体側外周面は、前記ノズル本体側内周面に係合可能な傾斜面で形成され、前記筒状壁の長手方向の端部外周部に、先端に至るにつれて次第に外径が小さくなり前記ノズル本体側内周面に交差し、前記ノズル本体側内周面と協働して下方に凸の突起部を形成するノズル本体側外周面が設けられ、前記吐出口が閉塞された状態で、前記突起部の先端と前記弁体側傾斜外周面の下端とは合致していることを特徴とする。
請求項２記載の発明は、前記流体進路変更部材は、前記端面部に間隔をおいて平行して延在し前記噴出口に対向する板材を含んで構成されていることを特徴とする。
請求項３記載の発明は、前記流体進路変更部材は、前記端面部に間隔をおいて前記噴出口に対向する板材を含んで構成され、前記板材の中央部が前記噴出口に対向しており、前記端面部から前記板材までの距離は、前記端面部から前記板材の中央部までが最も大きく、前記中央部から前記板材の外周部に至るにつれて前記距離が次第に小さくなるように設けられていることを特徴とする。
請求項４記載の発明は、前記弁体本体の軸心方向の端部には、前記端面部に加え、前記端面部の外周部から起立しその先端が前記弁体側外周面に交差する弁体側内周面が設けられている。
請求項５記載の発明は、前記端面部から前記板材までの距離は、前記端面部から前記弁体側内周面の先端までの高さよりも小さい寸法で形成されていることを特徴とする。 In order to achieve the above-mentioned object, the invention according to claim 1 is a nozzle body having a cylindrical wall provided with a discharge port of a fluid having viscosity at its lower end, and a valve capable of opening and closing the discharge port. A body, the discharge port is constituted by a nozzle body side inner peripheral surface provided on an inner peripheral portion at an end of the cylindrical wall in a longitudinal direction, the valve body is a valve body main body, and the valve body main body And the axial center of the valve body at the axial end of the valve body and the valve body side outer peripheral surface provided on the outer peripheral portion of the end portion in the axial direction and engageable with the inner peripheral surface on the nozzle body side. an end face portion extending in a direction perpendicular to, and an apertured flow path as the ejection outlet in the center of the end surface portion provided in the valve body, from the point away below the nozzle body the discharge port by said valve body is increased above the nozzle body side inner circumferential surface and the valve body side outer peripheral surface is engaged closed Is, the discharge port by the valve body is lowered to the nozzle body side inner peripheral surface goes away from the nozzle body and said valve body side outer peripheral surface is separated is opened, when clogging of the discharge port, The fluid discharge device is configured to prevent the formation of a downwardly projecting hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body by the fluid ejected from the jet port. , the fluid diverting member to blow the valve outside the fluid adhering the movement direction to the end surface changed toward the outer periphery of the end face portion of the fluid to be ejected from the ejection port provided et al is, the nozzle body The side inner peripheral surface is formed by an inclined surface whose inner diameter gradually increases toward the tip of the cylindrical wall, and the valve body outer peripheral surface is formed by an inclined surface which can be engaged with the inner peripheral surface at the nozzle body side , Longitudinal direction of the tubular wall The nozzle body has an outer diameter gradually decreasing toward the tip of the end portion and intersecting with the inner peripheral surface on the nozzle body side, and forming a downwardly projecting protrusion in cooperation with the inner peripheral surface on the nozzle body side A side outer peripheral surface is provided, and in a state in which the discharge port is closed, a tip end of the projection and a lower end of the valve body side inclined outer peripheral surface are matched .
The invention according to claim 2 is characterized in that the fluid diversion member includes a plate material extending parallel to the end face portion at an interval and facing the spout.
According to a third aspect of the present invention, the fluid diversion member includes a plate member facing the jet nozzle at an interval in the end face portion, and a central portion of the plate member faces the jet nozzle. The distance from the end face to the plate is the largest from the end face to the center of the plate, and the distance gradually decreases from the center to the outer periphery of the plate. It is characterized by
In the invention according to claim 4, in addition to the end face portion, an end portion in the axial center direction of the valve body main body stands on the valve body side where an end thereof rises from the outer peripheral portion of the end face portion An inner circumferential surface is provided.
The invention of claim 5, wherein a distance from said end face to said plate member, you characterized in that it is formed by a dimension smaller than the height from the end face to the tip of the valve body side inner circumferential surface.

請求項１記載の発明によれば、吐出口の閉塞時に、端面部の噴出口から噴出された流体の移動方向が流体進路変更部材により端面部の外周部に変更され、流体は端面部に付着した流動体を吹き飛ばすため、弁体本体の外周部から垂れ下がる流動体による下方に凸の半球面状の膜体が形成されることが阻止される。
また、噴出された流体が、端面部に付着した流動体を吹き飛ばすため、端面部から液垂れした流動体が充填袋の開口部に付着することを防止でき、充填袋の密閉性を高める上で有利となる。
また、弁体による吐出口の閉塞時に、流動体が突起部により円滑に切断され、吐出口が閉塞される。また、流動体切断時、切断された一部の流動体は、突起部を越えてノズル本体側外周面に付着する。ノズル本体側外周面に付着した流動体は、次の流動体の充填袋への充填時に、充填される流動体の粘性により下方に引っ張られ、充填される流動体と共に充填袋に充填される。
したがって、流動体の切断時にノズル本体側外周面に付着する流動体の量はほぼ一定に保たれ、下方に落下するおそれはなく、液垂れを防止し、充填袋の密閉性を高める上でより有利となる。
また、弁体により吐出口が閉塞された状態で弁体側外周面とノズル本体側内周面とが重ね合わされて両者が密着するため、吐出口を確実に閉塞する上で有利となる。
請求項２記載の発明によれば、流体進路変更部材の簡素化を図れ、コスト低減を図る上で有利となる。
請求項３記載の発明によれば、噴出口から噴出された流体は、いったん広い中央部分で撹拌されたのち、板材の外周の全周に向かってまんべんなく流れ、しかも、流体は、次第に狭くなる空間を移動することで流速が高められる。したがって、噴出口から噴出された流体が端面部に付着した流動体を確実に吹き飛ばす上で有利となり、端面部からの流動体の液垂れを防止し、充填袋の密閉性を高める上でより有利となる。
請求項４記載の発明によれば、端面部に沿って流れる流体により弁体側内周面に付着した流動体が流体により弁体側内周面に沿って斜め下方に吹き飛ばされる。そのため、弁体側内周面からの流動体の液垂れを防止し、充填袋の密閉性を高める上でより有利となる。
請求項５記載の発明によれば、端面部の噴出口から噴出された流体は、流体進路変更部材により進路が変更されて弁体側内周面に確実に当たる。そのため、弁体側内周面に付着した流動体を確実に吹き飛ばす上で有利となり、弁体側内周面からの流動体の液垂れを防止し、充填袋の密閉性を高める上でより有利となる。 According to the invention of claim 1, when the discharge port is closed, the moving direction of the fluid jetted from the jet port of the end face is changed to the outer peripheral part of the end face by the fluid diversion member, and the fluid adheres to the end face In order to blow off the fluid, it is prevented that a downwardly convex hemispherical membrane is formed by the fluid hanging down from the outer peripheral portion of the valve body.
In addition, since the ejected fluid blows off the fluid adhering to the end face, the fluid dripping from the end face can be prevented from adhering to the opening of the filling bag, which improves the sealing property of the filling bag. It is advantageous.
In addition, when the discharge port is closed by the valve body, the fluid is smoothly cut by the projection and the discharge port is closed. In addition, at the time of fluid cutting, a part of the fluid that has been cut adheres to the outer peripheral surface on the nozzle body side beyond the protrusions. The fluid attached to the outer peripheral surface on the nozzle body side is drawn downward by the viscosity of the fluid to be filled at the time of filling the fluid filling bag with the next fluid, and the fluid is filled in the filling bag together with the fluid to be filled.
Therefore, the amount of the fluid adhering to the outer peripheral surface of the nozzle body side at the time of cutting the fluid is maintained substantially constant, there is no possibility of falling downward, and dripping is prevented, and the sealing property of the filling bag is enhanced. It is advantageous.
Further, since the outer peripheral surface on the valve body side and the inner peripheral surface on the nozzle main body side are superimposed on each other in a state in which the discharge port is closed by the valve body and both are in close contact, it is advantageous for reliably closing the discharge port.
According to the second aspect of the invention, the fluid diversion member can be simplified, which is advantageous in reducing the cost.
According to the invention of claim 3, the fluid jetted from the jet nozzle, after being stirred in a wide central portion, uniformly flows toward the entire outer periphery of the plate material, and the fluid is gradually narrowed. The flow rate is increased by moving the Therefore, the fluid jetted from the jet nozzle is advantageous in reliably blowing away the fluid adhering to the end face, and it is more advantageous in preventing dripping of the fluid from the end face and enhancing the sealing property of the filling bag. It becomes.
According to the fourth aspect of the present invention, the fluid attached to the inner peripheral surface of the valve body is blown off obliquely downward along the inner peripheral surface of the valve body by the fluid flowing along the end face. Therefore, it is more advantageous in preventing the liquid dripping of the fluid from the valve body side inner peripheral surface, and improving the sealing property of a filling bag.
According to the fifth aspect of the present invention, the fluid ejected from the jet port of the end face portion is changed in course by the fluid diversion member, and surely strikes the inner peripheral surface of the valve body. Therefore, it is advantageous in reliably blowing off the fluid adhering to the inner peripheral surface of the valve body, and it is more advantageous in preventing dripping of the fluid from the inner peripheral surface of the valve body and enhancing the sealing property of the filling bag. Ru.

第１の実施の形態に係る流動体吐出装置の構成を示す断面図である。It is a sectional view showing the composition of the fluid discharge device concerning a 1st embodiment. 本実施の形態に係る流動体吐出装置において吐出口が閉塞される直前の状態を示す説明図である。It is explanatory drawing which shows the state in front of the discharge port being obstruct | occluded in the fluid discharge apparatus which concerns on this Embodiment. 本実施の形態に係る流動体吐出装置において吐出口が閉塞され流体により流動体が吹き飛ばされた状態を示す状態を示す説明図である。It is explanatory drawing which shows the state which shows the state by which the discharge port was obstruct | occluded and the fluid was blown off by the fluid in the fluid discharge apparatus which concerns on this Embodiment. ノズル本体が開口部を介して充填袋に挿入された状態を示す斜視図である。It is a perspective view which shows the state in which the nozzle main body was inserted in the filling bag through the opening part. ノズル本体の一部を拡大した断面図である。It is sectional drawing to which a part of nozzle body was expanded. 弁体の一部を拡大した断面図である。It is sectional drawing to which a part of valve body was expanded. 第２の実施の形態に係る流動体吐出装置の弁体の構成を示す断面図である。It is sectional drawing which shows the structure of the valve body of the fluid discharge apparatus which concerns on 2nd Embodiment. 第３の実施の形態に係る流動体吐出装置の弁体の構成を示す断面図である。It is sectional drawing which shows the structure of the valve body of the fluid discharge apparatus which concerns on 3rd Embodiment.

（第１の実施の形態）
次に、本実施の形態に係る流動体吐出装置について図面を参照して説明する。
本実施の形態に係る流動体吐出装置は、粘性を有する流動体を吐出するもので、粘度が０．０７Ｐａ・ｓ〜５０Ｐａ・ｓの流動体を対象として好適に使用可能である。
粘度測定方法は、ＪＩＳＫ７１１７−２に記載の測定方法に準拠し、２３℃に調整した試料を、コーンロータを用いるE型粘度計（EH型）を使用して規定の回転数で測定することによって粘度を得るものとする。
また、粘性を有する流動体として、建築用のシーリング材や接着剤など従来公知の様々な流動体が使用可能である。 First Embodiment
Next, a fluid discharge device according to the present embodiment will be described with reference to the drawings.
The fluid discharge device according to the present embodiment discharges a fluid having viscosity, and can be suitably used for a fluid having a viscosity of 0.07 Pa · s to 50 Pa · s.
The viscosity measurement method is based on the measurement method described in JIS K7117-2, and measure the sample adjusted to 23 ° C at a specified rotation speed using an E-type viscometer (EH type) using a cone rotor. To obtain the viscosity.
In addition, as the fluid having viscosity, various conventionally known fluids such as sealing materials and adhesives for construction can be used.

図１に示すように、流動体吐出装置１０は、ノズル本体１２と、エアシリンダ１６と、弁体１８とを含んで構成されている。
図１に示すように、ノズル本体１２は、筒状壁２０を備え、その軸線を鉛直方向に向けて不図示の移動機構により昇降可能に設けられ、筒状壁２０の下端は粘性を有する流動体が吐出される吐出口２２とされている。
筒状壁２０の上下中間部に摺動孔１４０２を有するブッシュ１４が配置されている。
ブッシュ１４よりも下方の筒状壁２０の箇所に供給口２４が開口されており、不図示のタンクからの流動体が供給口２４を介してノズル本体１２の内部に供給されるように構成されている。 As shown in FIG. 1, the fluid discharge device 10 is configured to include a nozzle body 12, an air cylinder 16, and a valve body 18.
As shown in FIG. 1, the nozzle body 12 has a cylindrical wall 20, is vertically movably provided with its axis line in the vertical direction by a moving mechanism (not shown), and the lower end of the cylindrical wall 20 has viscosity flow The discharge port 22 is used to discharge the body.
A bush 14 having a slide hole 1402 is disposed at the upper and lower intermediate portions of the cylindrical wall 20.
A supply port 24 is opened at a portion of the cylindrical wall 20 below the bush 14, and a fluid from a tank (not shown) is supplied to the inside of the nozzle body 12 through the supply port 24. ing.

弁体１８は、摺動孔１４０２で摺動可能に支持された軸部２６と、軸部２６の下端にねじ５０で取着された弁体本体２８とを備えている。
筒状壁２０の長手方向の上端は開口され、エアシリンダ１６が取着されている。
エアシリンダ１６のピストンロッド１６０２と軸部２６とは連結され、エアシリンダ１６の作動によるピストンロッド１６０２の出没により、弁体１８が上下動し、吐出口２２が開閉される。 The valve body 18 includes a shaft portion 26 slidably supported by the slide hole 1402 and a valve body main body 28 attached to the lower end of the shaft portion 26 with a screw 50.
The upper end in the longitudinal direction of the cylindrical wall 20 is open and an air cylinder 16 is attached.
The piston rod 1602 of the air cylinder 16 and the shaft portion 26 are connected, and when the piston rod 1602 is moved up and down by the operation of the air cylinder 16, the valve 18 moves up and down, and the discharge port 22 is opened and closed.

図１、図５に示すように、吐出口２２は、筒状壁２０の端部内周部に設けられたノズル本体側内周面３４で構成されており、本実施の形態では、ノズル本体側内周面３４は、筒状壁２０の先端（下端）に至るにつれて内径が次第に大きくなる傾斜面で形成されている。
筒状壁２０の端部外周部に、筒状壁２０の先端に至るにつれて次第に外径が小さくなり筒状壁２０の先端においてノズル本体側内周面３４に交差するノズル本体側外周面３６が形成されている。
そして、ノズル本体側外周面３６とノズル本体側内周面３４とにより、筒状壁２０の下端に鋭角をなす下方に凸の突起部３８が形成されている。 As shown in FIGS. 1 and 5, the discharge port 22 is constituted by the nozzle body side inner peripheral surface 34 provided on the inner peripheral portion of the end of the cylindrical wall 20, and in the present embodiment, the nozzle body side The inner circumferential surface 34 is formed by an inclined surface whose inner diameter gradually increases as it reaches the tip (lower end) of the cylindrical wall 20.
At the end outer periphery of the cylindrical wall 20, the outer diameter gradually decreases toward the tip of the cylindrical wall 20, and at the tip of the cylindrical wall 20 the nozzle body outer peripheral surface 36 intersecting the nozzle body side inner circumferential surface 34 It is formed.
The nozzle main body side outer peripheral surface 36 and the nozzle main body side inner peripheral surface 34 form a downwardly projecting convex portion 38 forming an acute angle at the lower end of the cylindrical wall 20.

図１、図６に示すように、弁体本体２８の外周部には、ノズル本体側内周面３４に係合可能な弁体側外周面４０が形成されている。
本実施の形態では、弁体側外周面４０は、ノズル本体側内周面３４に係合可能な傾斜面で形成されている。
そして、ノズル本体側内周面３４と弁体側外周面４０とが係合することで吐出口２２が閉塞され、ノズル本体側内周面３４と弁体側外周面４０とが離間することで吐出口２２が開放される。
また、図３に示すように、吐出口２２が閉塞された状態で、突起部３８の先端と弁体側外周面４０の下端とは合致している。 As shown in FIGS. 1 and 6, a valve body outer peripheral surface 40 engageable with the nozzle body inner peripheral surface 34 is formed on the outer peripheral portion of the valve body 28.
In the present embodiment, the valve body outer peripheral surface 40 is formed by an inclined surface which can be engaged with the nozzle main body inner peripheral surface 34.
Then, the discharge port 22 is closed by engagement between the nozzle body side inner peripheral surface 34 and the valve body side outer peripheral surface 40, and the discharge port is separated by separating the nozzle body side inner peripheral surface 34 and the valve body side outer peripheral surface 40. 22 is released.
Further, as shown in FIG. 3, in the state where the discharge port 22 is closed, the tip end of the projection 38 and the lower end of the valve body outer peripheral surface 40 coincide with each other.

図１、図２に示すように、端面部３０は、弁体本体２８の軸心方向の端部で弁体本体２８の軸心に対して直交する方向に延在し吐出口２２が閉塞された状態で筒状壁２０の外部に露出する部分である。
図１、図２、図６に示すように、弁体本体２８の軸心方向の端部には、端面部３０に加え、端面部３０の外周部から起立しその先端が弁体側外周面４０に交差する弁体側内周面４６が設けられている。
図２に示すように、本実施の形態では、端面部３０の中央に弁体本体２８を軸部２６に取着するためのねじ挿通孔４８が形成され、ねじ挿通孔４８から挿通されたねじ５０が軸部２６の下端に形成されたねじ孔５２に螺合することで弁体本体２８が軸部２６に結合されている。
なお、ねじ５０の頭部５０Ａは、端面部３０の凹部３０Ａに収容され、頭部５０Ａの下面は端面部３０よりも上方に配置されている。 As shown in FIGS. 1 and 2, the end face 30 extends in a direction perpendicular to the axial center of the valve body 28 at the axial end of the valve body 28 and the outlet 22 is closed. It is a portion exposed to the outside of the cylindrical wall 20 in the closed state.
As shown in FIG. 1, FIG. 2 and FIG. 6, in addition to the end face 30, the end in the axial direction of the valve body 28 stands up from the outer periphery of the end face 30 and its tip is the valve body side outer peripheral surface 40. The valve body side inner peripheral surface 46 which intersects is provided.
As shown in FIG. 2, in the present embodiment, a screw insertion hole 48 for attaching the valve body 28 to the shaft 26 is formed at the center of the end face 30, and a screw inserted through the screw insertion hole 48. The valve body 28 is coupled to the shaft 26 by screwing 50 into a screw hole 52 formed at the lower end of the shaft 26.
The head 50A of the screw 50 is accommodated in the recess 30A of the end face 30, and the lower surface of the head 50A is disposed above the end face 30.

吐出口２２の閉塞時に、弁体本体２８の外周部から垂れ下がる流動体による下方に凸の半球面状の膜体が形成されることを阻止するための流体の流路３２は、軸部２６の軸心に沿って延在し、ねじ５０の軸心を通って頭部５０Ａに開口され、すなわち、端面部３０の中央に端面部３０に直交して鉛直下方に向けられた噴出口５４として開口されている。
なお、流体は、流動体４に対して影響を与えない性状のものであることが必要である。例えば、流動体４がシーリング材や接着剤などのように空気に触れることで酸素と反応するものである場合は、流体として窒素ガスを用いることができる。 A fluid flow path 32 for preventing formation of a downwardly convex hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body 28 when the discharge port 22 is closed is the flow path 32 of the shaft portion 26. It extends along the axial center and is opened to the head 50A through the axial center of the screw 50, that is, an opening as a jet 54 directed vertically downward to the end 30 at the center of the end 30 It is done.
The fluid needs to be of a nature that does not affect the fluid 4. For example, when the fluid 4 reacts with oxygen by being in contact with air, such as a sealing material or an adhesive, nitrogen gas can be used as the fluid.

図２に示すように、弁体本体２８に、流体進路変更部材５６が設けられている。
流体進路変更部材５６は、流路３２の噴出口５４から鉛直下方に噴出される流体の移動方向を端面部３０の外周部に向けて変更し、端面部３０に付着した流動体４を弁体１８外に吹き飛ばすものである。
本実施の形態では、流体進路変更部材５６は、端面部３０に間隔をおいて平行して延在し噴出口５４に対向する板材５８を含んで構成されている。
また、端面部３０から板材５８までの距離Δｄは、端面部３０から弁体側内周面４６の先端までの高さΔＨよりも小さい寸法で形成されている。
板材５８は、円板状を呈し、同一半径上で周方向に等間隔をおいて設けられた複数のねじ挿通孔が形成されている。
板材５８は、その中心を流路３２の噴出口５４の中心と合致させ、かつ、複数のねじ６０が複数のねじ挿通孔および複数のスペーサ６２を介して端面部３０のねじ孔６４に螺合することで取着されている。
そして、端面部３０と板材５８との間に介在するスペーサ６２によって噴出口５４から噴出された流体が端面部３０の外周部に向けて流れる空間が形成されている。 As shown in FIG. 2, the valve body main body 28 is provided with a fluid diversion member 56.
The fluid course changing member 56 changes the moving direction of the fluid spouted vertically downward from the spout 54 of the flow path 32 toward the outer peripheral portion of the end face portion 30, and the fluid 4 attached to the end face portion 30 is a valve body It is what blows 18 outside.
In the present embodiment, the fluid diversion member 56 is configured to include a plate member 58 extending parallel to the end face 30 with a gap and facing the spout 54.
Further, the distance Δd from the end face portion 30 to the plate member 58 is formed to be smaller than the height ΔH from the end face portion 30 to the tip of the valve body side inner circumferential surface 46.
The plate member 58 has a disk shape, and a plurality of screw insertion holes provided at equal intervals in the circumferential direction on the same radius are formed.
The plate member 58 has its center aligned with the center of the jet nozzle 54 of the flow passage 32, and the plurality of screws 60 are screwed into the screw holes 64 of the end surface portion 30 through the plurality of screw insertion holes and the plurality of spacers 62. It is attached by doing.
A space is formed by the spacer 62 interposed between the end face portion 30 and the plate member 58 so that the fluid ejected from the ejection port 54 flows toward the outer peripheral portion of the end face portion 30.

次に、本実施の形態の作用効果について説明する。
なお、不図示のタンクから粘性を有する流動体４が供給口２４を介してノズル本体１２の内部に供給されている。
図１、図４に示すように、ノズル本体１２を下降させ充填袋２の開口部２Ａから内部に挿入し、エアシリンダ１６の作動により吐出口２２を開放させて流動体４を吐出口２２から充填袋２の内部に吐出させ充填する。
一定量の流動体４が充填袋２に充填されたならば、図２、図３に示すように、エアシリンダ１６の作動により吐出口２２を閉塞し流動体４の吐出を停止する。 Next, the operation and effect of the present embodiment will be described.
A fluid 4 having viscosity is supplied from the tank (not shown) to the inside of the nozzle body 12 through the supply port 24.
As shown in FIGS. 1 and 4, the nozzle main body 12 is lowered and inserted into the interior from the opening 2A of the filling bag 2 and the discharge port 22 is opened by the operation of the air cylinder 16 and the fluid 4 is discharged from the discharge port 22. The inside of the filling bag 2 is discharged and filled.
When a certain amount of fluid 4 is filled in the filling bag 2, the discharge port 22 is closed by the operation of the air cylinder 16 to stop the discharge of the fluid 4 as shown in FIG. 2 and FIG.

そして、吐出口２２が弁体１８により閉塞された状態で不図示の流体供給源から流体を流路３２に供給する。
流体は、流路３２を介して噴出口５４から噴出される。噴出口５４から噴出された流体は、流体進路変更部材５６によって、その移動方向が下方から端面部３０の外周部に向けて変更され、端面部３０、弁体側内周面４６に付着した流動体４が充填袋２内部において弁体１８外に吹き飛ばされる。
また、弁体側内周面４６に付着した流動体４は弁体側内周面４６から下方に垂れ下がる。この場合、流体進路変更部材５６によって、その移動方向が端面部３０の外周部に向けて変更された流体によって、弁体側内周面４６から垂れ下がった流動体４も充填袋２内部において弁体１８外に吹き飛ばされる。
また、吐出口２２が弁体１８により閉塞された際に、流動体がノズル本体側外周面３６に回り込むことでノズル本体側外周面３６にも流動体が付着し、流動体はノズル本体側外周面３６から下方に垂れ下がる。この場合、流体進路変更部材５６によって、その移動方向が端面部３０の外周部に向けて変更された流体によって、ノズル本体側外周面３６から垂れ下がる流動体４も充填袋２内部において弁体１８外に吹き飛ばされる。
次いで、ノズル本体１２を上昇させ充填袋２の開口部２Ａから抜き出し、充填袋２を次工程に移送し開口部２Ａをシールして充填袋２を密封する。 Then, fluid is supplied to the flow path 32 from a fluid supply source (not shown) in a state where the discharge port 22 is closed by the valve body 18.
Fluid is jetted from the spout 54 through the flow path 32. The fluid spouted from the spout 54 is a fluid whose direction of movement is changed from the lower side toward the outer peripheral portion of the end face 30 by the fluid path change member 56 and attached to the end face 30 and the valve body inner peripheral surface 46 4 are blown out of the valve body 18 inside the filling bag 2.
Further, the fluid 4 attached to the valve body side inner circumferential surface 46 hangs down from the valve body side inner circumferential surface 46. In this case, the fluid 4 dropped from the valve body side inner circumferential surface 46 by the fluid whose direction of movement is changed toward the outer peripheral portion of the end face 30 by the fluid course changing member 56 is also the valve body 18 inside the filling bag 2. It is blown out.
In addition, when the discharge port 22 is closed by the valve body 18, the fluid wraps around the nozzle body side outer peripheral surface 36 so that the fluid also adheres to the nozzle body side outer peripheral surface 36, and the fluid is on the nozzle body side outer periphery Hanging downward from the surface 36. In this case, the fluid 4 hanging down from the nozzle body side outer peripheral surface 36 by the fluid whose direction of movement is changed toward the outer peripheral portion of the end face 30 by the fluid path changing member 56 is also outside the valve body 18 inside the filling bag 2. Be blown away.
Then, the nozzle body 12 is raised and taken out from the opening 2A of the filling bag 2, the filling bag 2 is transferred to the next process, the opening 2A is sealed, and the filling bag 2 is sealed.

本実施の形態によれば、端面部３０の噴出口５４から噴出された流体の移動方向が流体進路変更部材５６により端面部３０の外周部に向けて変更されるものの、吐出口２２の閉塞時に、弁体本体２８の外周部から垂れ下がる流動体による下方に凸の半球面状の膜体が形成されることが阻止される。
さらに、噴出された流体が、端面部３０、弁体側内周面４６に付着した流動体４、弁体側内周面４６、弁体側外周面４０から垂れ下がる流動体を吹き飛ばすため、液垂れした流動体４が充填袋２の開口部２Ａの内側部分、すなわち、シールにより互いに接合される部分に付着することを防止できる。
そのため、開口部２Ａがシールされても開口部２Ａのシールされた部分に流動体４が介在して充填袋２の密閉性が損なわれるといった不具合を防止でき、充填袋２の密閉性を高める上で有利となる。 According to the present embodiment, although the movement direction of the fluid ejected from the jet nozzle 54 of the end face 30 is changed toward the outer peripheral part of the end face 30 by the fluid course change member 56, when the outlet 22 is closed. The formation of a downwardly convex hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body 28 is prevented.
Furthermore, the fluid which has been jetted out blows away the fluid that hangs down from the end surface 30, the fluid 4 adhering to the valve body side inner circumferential surface 46, the valve body side inner circumferential surface 46, and the valve body side outer circumferential surface 40 4 can be prevented from adhering to the inner part of the opening 2A of the filling bag 2, that is, the part joined together by the seal.
Therefore, even if the opening 2A is sealed, the fluid 4 intervenes in the sealed portion of the opening 2A and the sealing property of the filling bag 2 can be prevented from being impaired, and the sealing property of the filling bag 2 can be improved. Be advantageous.

また、本実施の形態によれば、流体進路変更部材５６は、端面部３０に間隔をおいて平行して延在し噴出口５４に対向する板材５８を含んで構成されている。
したがって、流体進路変更部材５６の簡素化を図れ、コスト低減を図る上で有利となる。 Further, according to the present embodiment, the fluid diversion member 56 is configured to include the plate member 58 extending parallel to the end face portion 30 with a gap and facing the spout 54.
Therefore, the fluid diversion member 56 can be simplified, which is advantageous in cost reduction.

また、本実施の形態によれば、弁体本体２８の軸心方向の端部には、端面部３０に加え、端面部３０の外周部から起立しその先端が弁体側外周面４０に交差する弁体側内周面４６が設けられている。
したがって、弁体側内周面４６が端面部３０から斜め下方に傾斜しているため、端面部３０に沿って流れる流体により弁体側内周面４６に付着した流動体が流体により弁体側内周面４６に沿って斜め下方に吹き飛ばされる。そのため、弁体側内周面４６からの流動体４の液垂れを防止し、充填袋２の密閉性を高める上でより有利となる。 Further, according to the present embodiment, the end portion in the axial direction of the valve body main body 28 stands up from the outer peripheral portion of the end surface portion 30 in addition to the end surface portion 30, and the tip thereof intersects the valve body side outer peripheral surface 40 A valve body side inner circumferential surface 46 is provided.
Therefore, since the valve body side inner circumferential surface 46 is inclined obliquely downward from the end face portion 30, the fluid adhering to the valve body side inner circumferential surface 46 by the fluid flowing along the end face portion 30 is the valve body side inner circumferential surface It is blown off obliquely downward along 46. Therefore, it is more advantageous in preventing the dripping of the fluid 4 from the valve body side inner peripheral surface 46 and improving the sealing property of the filling bag 2.

また、本実施の形態によれば、端面部３０から板材５８までの距離は、端面部３０から弁体側内周面４６の先端までの高さよりも小さい寸法で形成されている。
端面部３０の噴出口５４から噴出された流体は、流体進路変更部材５６により進路が変更されて弁体側内周面４６に確実に当たり、弁体側内周面４６に付着した流動体を確実に吹き飛ばす上で有利となり、弁体側内周面４６からの流動体４の液垂れを防止し、充填袋２の密閉性を高める上でより有利となる。 Further, according to the present embodiment, the distance from the end face 30 to the plate member 58 is formed to be smaller than the height from the end face 30 to the tip of the inner peripheral surface 46 of the valve body.
The fluid spouted from the spouting port 54 of the end face portion 30 is changed in its course by the fluid course changing member 56 to abut against the valve body side inner circumferential surface 46 surely and blow away the fluid adhering to the valve body side inner circumferential surface 46 reliably. This is advantageous in preventing the dripping of the fluid 4 from the valve body side inner circumferential surface 46 and more advantageous in enhancing the sealing property of the filling bag 2.

また、本実施の形態によれば、筒状壁２０の長手方向の端部外周部に、先端に至るにつれて次第に外径が小さくなりノズル本体側内周面３４に交差するノズル本体側外周面３６が形成されている。
したがって、弁体１８による吐出口２２の閉塞時に、吐出口２２に対して弁体本体２８が上昇し、弁体側外周面４０がノズル本体側内周面３４に近づくと、それら弁体側外周面４０とノズル本体側内周面３４との隙間から下方に流出している流動体４が、鋭角をなす突起部３８で切断される。
そのため、図２、図３に示すように、流動体４が突起部３８により円滑に切断され、吐出口２２が閉塞される。
また、流動体４の切断時、切断された一部の流動体４は、突起部３８を越えてノズル本体側外周面３６に付着する。
このノズル本体側外周面３６に付着した流動体４は、次の流動体４の充填袋２への充填時に、充填される流動体４の粘性により下方に引っ張られ、充填される流動体４と共に充填袋２に充填される。
したがって、流動体４の切断時にノズル本体側外周面３６に付着する流動体４の量はほぼ一定に保たれ、下方に落下するおそれはなく、液垂れを防止し、充填袋２の密閉性を高める上でより有利となる。 Further, according to the present embodiment, the outer diameter of the end of the cylindrical wall 20 in the longitudinal direction is gradually reduced as it reaches the tip, and the nozzle body side outer peripheral surface 36 intersects the nozzle body side inner peripheral surface 34. Is formed.
Therefore, when the discharge port 22 is closed by the valve body 18, the valve body main body 28 rises with respect to the discharge port 22, and when the valve body side outer peripheral surface 40 approaches the nozzle body side inner peripheral surface 34, the valve body outer peripheral surface 40 The fluid 4 flowing downward from the gap between the nozzle body side inner circumferential surface 34 and the nozzle body side inner circumferential surface 34 is cut by the projecting portion 38 forming an acute angle.
Therefore, as shown in FIGS. 2 and 3, the fluid 4 is smoothly cut by the projection 38, and the discharge port 22 is closed.
Further, when the fluid 4 is cut, a part of the cut fluid 4 adheres to the outer peripheral surface 36 on the nozzle body side beyond the projection 38.
The fluid 4 attached to the outer peripheral surface 36 on the nozzle body side is pulled downward by the viscosity of the fluid 4 to be filled with the fluid 4 to be filled at the time of the filling of the fluid 4 into the filling bag 2 next. The filling bag 2 is filled.
Therefore, the amount of the fluid 4 adhering to the nozzle body side outer peripheral surface 36 at the time of cutting the fluid 4 is maintained substantially constant, there is no possibility of falling downward, preventing dripping, and the sealing property of the filling bag 2 It is more advantageous in enhancing.

また、本実施の形態によれば、ノズル本体側内周面３４は、筒状壁２０の先端に至るにつれて内径が次第に大きくなる傾斜面で形成され、弁体側外周面４０は、ノズル本体側内周面３４に係合可能な傾斜面で形成されている。
したがって、弁体１８により吐出口２２が閉塞された状態で弁体側外周面４０とノズル本体側内周面３４とが重ね合わされて両者が密着するため、吐出口２２を確実に閉塞する上で有利となる。 Further, according to the present embodiment, the nozzle body side inner peripheral surface 34 is formed as an inclined surface whose inner diameter gradually increases as it reaches the tip of the cylindrical wall 20, and the valve body side outer peripheral surface 40 is inside the nozzle body side. It is formed of an inclined surface engageable with the circumferential surface 34.
Therefore, the valve body side outer peripheral surface 40 and the nozzle body side inner peripheral surface 34 overlap each other in a state where the discharge port 22 is closed by the valve body 18 and both are in close contact, which is advantageous in reliably closing the discharge port 22 It becomes.

（第２の実施の形態）
次に第２の実施の形態について図７を参照して説明する。
なお、以下の実施の形態において第１の実施の形態と同様の部分、部材については同一の符号を付してその説明を省略し、異なる部分について重点的に説明する。
第２の実施の形態は、流体進路変更部材５６を構成する板材５８の形状が第１の実施の形態と異なっている。 Second Embodiment
Next, a second embodiment will be described with reference to FIG.
In the following embodiments, the same parts and members as in the first embodiment are given the same reference numerals, and descriptions thereof are omitted, and different parts will be mainly described.
The second embodiment is different from the first embodiment in the shape of the plate member 58 constituting the fluid diverting member 56.

第２の実施の形態では、流体進路変更部材５６は、端面部３０に間隔をおいて噴出口５４に対向する湾曲した板材５８を含んで構成されている。
板材５８は、平面視円形を呈し、周方向に間隔をおいて設けられた複数の取り付け部材６６と、各取り付け部材６６を挿通したねじ６０が端面部３０のねじ孔６４に螺合することで取着されている。
板材５８はその中央部５８０２が噴出口５４に対向しており、端面部３０から板材５８までの距離は、端面部３０から板材５８の中央部５８０２までが最も大きく、中央部５８０２から板材５８の外周部５８０４に至るにつれて距離が次第に小さくなるように設けられている。
したがって、板材５８により、端面部３０と板材５８との間に噴出口５４から噴出された流体が端面部３０の外周部に向けて流れる空間が形成され、この空間は、噴出口５４から板材５８の外周に至るにつれて次第に狭くなっている。 In the second embodiment, the fluid diverting member 56 is configured to include a curved plate member 58 facing the spout 54 at an interval on the end face portion 30.
The plate member 58 has a circular shape in a plan view, and a plurality of mounting members 66 provided at intervals in the circumferential direction and the screws 60 inserted through the respective mounting members 66 are screwed into the screw holes 64 of the end surface portion 30. It is attached.
The central portion 5802 of the plate member 58 faces the jet nozzle 54, and the distance from the end face portion 30 to the plate member 58 is the largest from the end face portion 30 to the central portion 5802 of the plate member 58. The distance gradually decreases toward the outer peripheral portion 5804.
Therefore, a space is formed between the end face 30 and the plate 58 by which the fluid jetted from the jet nozzle 54 flows toward the outer peripheral part of the end face 30 by the plate 58. It becomes narrow gradually as it reaches the circumference of.

すなわち、噴出口５４から噴出された流体が流れる空間は、噴出口５４に面した中央部分が最も広く、中央部分の周辺部分では噴出口５４から板材５８の外周に至るにつれて次第に狭くなっている。
そのため、噴出口５４から噴出された流体は、いったん広い中央部分で撹拌されたのち、板材５８の外周の全周に向かってまんべんなく流れ、しかも、流体は、次第に狭くなる空間を移動することで流速が高められる。
したがって、第２の実施の形態によれば、吐出口２２の閉塞時に、弁体本体２８の外周部から垂れ下がる流動体による下方に凸の半球面状の膜体が形成されることが阻止される。
また、噴出口５４から噴出された流体が端面部３０、弁体側内周面４６に付着した流動体４、弁体側内周面４６、ノズル本体側外周面３６から垂れ下がった流動体４に確実に当たり、端面部３０、弁体側内周面４６に付着した流動体４、弁体側内周面４６、ノズル本体側外周面３６から垂れ下がった流動体４を確実に吹き飛ばす上で有利となり、流動体４の液垂れを防止し、充填袋２の密閉性を高める上でより有利となる。 That is, the space through which the fluid ejected from the ejection port 54 flows is the widest at the central portion facing the ejection port 54 and gradually narrows from the ejection port 54 to the outer periphery of the plate 58 at the peripheral portion of the central portion.
Therefore, the fluid spouted from the spout 54 is once stirred in a wide central portion and uniformly flows toward the entire outer periphery of the plate 58, and the fluid moves by gradually narrowing the space. Is enhanced.
Therefore, according to the second embodiment, when the discharge port 22 is closed, formation of a downwardly convex hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body 28 is prevented. .
Further, the fluid jetted from the jet nozzle 54 surely contacts the end face 30, the fluid 4 adhering to the valve body side inner circumferential surface 46, the valve body side inner circumferential surface 46, and the fluid 4 hanging down from the nozzle body side outer circumferential surface 36. The fluid 4 attached to the end face portion 30, the valve body side inner circumferential surface 46, the valve body side inner circumferential surface 46, and the nozzle body side outer circumferential surface 36 are advantageous in reliably blowing away the fluid 4. It is more advantageous in preventing dripping and enhancing the tightness of the filling bag 2.

（第３の実施の形態）
次に、第３の実施の形態について図８を参照して説明する。
第３の実施の形態は、弁体本体２８の軸心方向の端部が端面部３０のみで形成され、弁体側内周面４６を備えていない点が第１の実施の形態と異なっている。
第３の実施の形態においては、弁体１８により吐出口２２が閉塞された状態で、突起部３８の先端と端面部３０とが合致している。
第３の実施の形態によれば、第１の実施の形態と同様に、吐出口２２の閉塞時に、流体が流路３２を介して噴出口５４から噴出されると、吐出口２２の閉塞時に、弁体本体２８の外周部から垂れ下がる流動体による下方に凸の半球面状の膜体が形成されることが阻止される。
また、噴出口５４から噴出された流体の移動方向が流体進路変更部材５６によって端面部３０の外周部に向けて変更されるため、噴出口５４から噴出された流体が端面部３０に付着した流動体、ノズル本体側外周面３６から垂れ下がった流動体４に確実に当たり、端面部３０に付着した流動体、ノズル本体側外周面３６から垂れ下がった流動体４を確実に吹き飛ばす上で有利となり、端面部３０に付着した流動体、ノズル本体側外周面３６から垂れ下がった流動体４の液垂れを防止し、充填袋２の密閉性を高める上でより有利となる。
したがって、第３の実施の形態においても第１の実施の形態と同様に、流動体４の液垂れを防止し、充填袋２の密閉性を高める上で有利となる。 Third Embodiment
Next, a third embodiment will be described with reference to FIG.
The third embodiment is different from the first embodiment in that the axial direction end of the valve body 28 is formed only by the end face 30 and the valve body inner peripheral surface 46 is not provided. .
In the third embodiment, in a state where the discharge port 22 is closed by the valve body 18, the tip end of the projection 38 and the end face 30 coincide with each other.
According to the third embodiment, similarly to the first embodiment, when the fluid is ejected from the ejection port 54 via the flow path 32 at the time of the closure of the ejection port 22, at the time of the closure of the ejection port 22. The formation of a downwardly convex hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body 28 is prevented.
In addition, since the movement direction of the fluid ejected from the ejection port 54 is changed toward the outer peripheral portion of the end surface 30 by the fluid path change member 56, the fluid ejected from the ejection port 54 adheres to the end surface 30 The body, the fluid 4 hanging down from the outer peripheral surface 36 on the nozzle body side is positively hit, and it is advantageous in reliably blowing off the fluid adhering to the end face 30 and the fluid 4 hanging down from the outer peripheral surface 36 on the nozzle body side. It is more advantageous in preventing the fluid attached to 30 and the fluid 4 hanging down from the outer peripheral surface 36 on the nozzle body side from dripping and enhancing the sealing property of the filling bag 2.
Therefore, in the third embodiment as well as in the first embodiment, it is advantageous in preventing dripping of the fluid 4 and enhancing the sealability of the filling bag 2.

１０流動体吐出装置
１２ノズル本体
１８弁体
２０筒状壁
２２吐出口
２８弁体本体
３０端面部
３２流路
３４ノズル本体側内周面
３６ノズル本体側外周面
３８突起部
４０弁体側外周面
４６弁体側内周面
５４噴出口
５６流体進路変更部材
５８板材
５８０２中央部
５８０４外周部 DESCRIPTION OF SYMBOLS 10 Fluid discharge apparatus 12 Nozzle main body 18 Valve body 20 Tubular wall 22 Discharge port 28 Valve body 30 End face 32 Flow path 34 Nozzle body side inner peripheral surface 36 Nozzle body side outer peripheral surface 38 Protrusion 40 Valve body side outer peripheral surface 46 Valve body side inner circumferential surface 54 Jet port 56 Fluid course changing member 58 plate 5802 central portion 5804 outer peripheral portion

Claims

A nozzle body having a cylindrical wall provided at its lower end with a discharge port of a fluid having viscosity, and a valve body capable of opening and closing the discharge port;
The discharge port is constituted by an inner peripheral surface on the nozzle body side provided on an inner peripheral portion at an end of the cylindrical wall in the longitudinal direction,
The valve body includes a valve body main body, a valve body side outer peripheral surface provided on an outer peripheral portion of an end portion in an axial direction of the valve body main body and engageable with the nozzle body side inner peripheral surface; An end face extending in a direction perpendicular to the axial center of the valve body at an end in the axial direction, and a flow path provided in the valve body and opened at the center of the end face as a jet port Have
The valve body ascends from below the nozzle body, and the discharge port is closed by engagement between the nozzle body side inner peripheral surface and the valve body side outer peripheral surface, and the valve body body is lowered. The discharge port is opened by separating from the nozzle body and separating the nozzle body side inner peripheral surface from the valve body side outer peripheral surface.
When the outlet is closed, formation of a downwardly convex hemispherical membrane by the fluid hanging down from the outer peripheral portion of the valve body is prevented by the fluid ejected from the outlet. ,
A fluid discharge device,
It said fluid diverting member to blow the valve outside the fluid adhering the movement direction to the end surface changed toward the outer periphery of the end face portion of the fluid to be ejected from the ejection port provided et al is,
The nozzle body side inner circumferential surface is formed by an inclined surface whose inner diameter gradually increases toward the tip of the cylindrical wall,
The valve body side outer peripheral surface is formed by an inclined surface engageable with the nozzle main body side inner peripheral surface,
The outer diameter of the end of the cylindrical wall in the longitudinal direction gradually decreases as it reaches the tip, intersects the inner peripheral surface of the nozzle body side, and protrudes downward in cooperation with the inner peripheral surface of the nozzle body side An outer peripheral surface on the nozzle body side that forms the protrusion of
In a state in which the discharge port is closed, the tip end of the protrusion and the lower end of the valve body-side inclined outer peripheral surface coincide with each other.
A fluid discharge device characterized in that

The fluid course change member is configured to include a plate material extending parallel to the end face portion at an interval and facing the jet port.
The fluid discharge device according to claim 1, characterized in that:

The fluid course change member is configured to include a plate material facing the jet port at an interval on the end face portion,
The central portion of the plate faces the spout,
The distance from the end face to the plate is the largest from the end face to the center of the plate, and the distance gradually decreases from the center to the outer periphery of the plate.
The fluid discharge device according to claim 1, characterized in that:

An end portion in the axial direction of the valve body main body is provided with a valve body side inner peripheral surface which is erected from an outer peripheral portion of the end surface portion and whose tip intersects the valve body side outer peripheral surface. ,
The discharge apparatus of the fluid of any one of Claims 1-3 characterized by the above-mentioned.

The distance from the end face to the plate is smaller than the height from the end face to the tip of the inner peripheral surface of the valve body.
The discharge device of the fluid according to claim 4 characterized by things.