JP2007197050A - Shut valve type filling nozzle of bag-shaped container with spout - Google Patents
Shut valve type filling nozzle of bag-shaped container with spout Download PDFInfo
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- JP2007197050A JP2007197050A JP2006018202A JP2006018202A JP2007197050A JP 2007197050 A JP2007197050 A JP 2007197050A JP 2006018202 A JP2006018202 A JP 2006018202A JP 2006018202 A JP2006018202 A JP 2006018202A JP 2007197050 A JP2007197050 A JP 2007197050A
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- 239000007788 liquid Substances 0.000 abstract description 40
- 238000000034 method Methods 0.000 description 14
- 239000011344 liquid material Substances 0.000 description 13
- 238000005187 foaming Methods 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 9
- 238000005429 filling process Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 235000014214 soft drink Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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- Supply Of Fluid Materials To The Packaging Location (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
本発明は、スパウト付きの袋状容器に飲料等の液状物体を充填する工程で用いられる充填ノズルに関する。 The present invention relates to a filling nozzle used in a process of filling a bag-like container with a spout with a liquid object such as a beverage.
清涼飲料等の容器として、スパウト(口栓)付きの包装袋が使用されている。このスパウト付きの袋状容器の多くは、合成樹脂製のフィルムに剛性を持たせる素材をラミネートし、可撓性を備えるとともに所定の剛性を持たせるようにしたもので、一般にパウチ容器と呼ばれている。この種のスパウト付きの袋状容器に清涼飲料等の液状物を充填する工程は特許文献1に例示され説明されている。この例は図3に示される形態で、装置1は、機台3に間欠的に回転可能に設けられた回転テーブル5を備え、この回転テーブル5上に、円周方向所定の間隔で、包装袋を保持する袋保持部材7を備えた袋保持装置が複数設けられている。この実施形態で使用される包装袋は公知のスパウト付きの包装袋と同様のもので、ある程度の剛性を備えた袋本体と、該袋本体に取り付けられたスパウトとで構成されたものである。該スパウトの上部フランジが袋保持部材7の上面に受け止められて、吊り下げられた状態で支持される。包装袋は、袋保持部材7に保持されて、回転テーブル5の回転に伴い、回転テーブル5上に数字で示された各工程を順次移動する。すなわち、第1工程では図示していない袋供給装置からスパウト付き包装袋が袋保持部材7に供給される。この実施の形態では、袋詰め包装は2個づつの単位で行われるようになっており、袋保持部材7は2つの切欠き即ち袋保持部を備えており、袋供給装置から同時に2個の袋が供給される。第2工程では、光センサー等を用いた検出器9により、包装袋が袋保持部材7により保持されていることを確認する。第3工程ではジェットプリンター等の印字機11により、製造年月日等の印刷が行われる。第4工程では、図示しない貯留タンクに接続されている液充填ノズル13を用いて、予め定められた所定の量の液状物が袋内へ充填される。すなわち、充填ノズル13の先端を袋のスパウトの口部に押し当てて互いに連通させて、液状物が充填される。
A packaging bag with a spout is used as a container for soft drinks. Many of these spouted pouch-shaped containers are made by laminating a synthetic resin film with a material that gives rigidity to provide flexibility and a predetermined rigidity, and are generally called pouch containers. ing. The process of filling this kind of spouted bag-like container with a liquid material such as a soft drink is exemplified and described in Patent Document 1. This example is a form shown in FIG. 3, and the apparatus 1 includes a rotary table 5 provided on the machine base 3 so as to be intermittently rotatable. A plurality of bag holding devices including a bag holding member 7 for holding a bag are provided. The packaging bag used in this embodiment is the same as a known packaging bag with a spout, and is composed of a bag body having a certain degree of rigidity and a spout attached to the bag body. The upper flange of the spout is received on the upper surface of the bag holding member 7 and supported in a suspended state. The packaging bag is held by the bag holding member 7 and sequentially moves through the steps indicated by numerals on the rotary table 5 as the rotary table 5 rotates. That is, the spout-equipped packaging bag is supplied to the bag holding member 7 from a bag supply device (not shown) in the first step. In this embodiment, bag packing is performed in units of two, and the bag holding member 7 is provided with two notches, that is, bag holding portions. A bag is supplied. In the second step, it is confirmed by the
次の第5工程ではスパウト口部洗浄装置15を用いて、洗浄液及び空気の吹き付けを行い、スパウトの袋本体の外側にある部分を洗浄する。第6工程ではスパウト口部乾燥装置17によりスパウトの先に洗浄した部分に空気を吹き付け、乾燥させる。第7工程においては、ガスフラッシュノズル19がスパウトに挿入され、それにより例えば窒素ガス等を用いて袋内の空気を置換する。第8工程では、テープリール21を備えたテープ供給装置から、アルミ箔、合成樹脂薄膜等で構成されたテープ22が供給され、インナーシール用のシール体が打ち抜かれ、スパウトの口部上端面に仮付けされる。第9工程はシール体を熱板23を用いてスパウトの口部上端面にシールする一次シール工程であるが、この工程ではそのシールに先立ち袋内の脱気が行われるが、これらについては後述する。第10工程は同じく熱板25を用いて行う二次シール工程である。そして第11工程は冷却工程で、冷却板27を用いてシールされた部分を冷却する。第12工程はインナーシールが適正に行われたか否かを判定するインナーシール不良検出工程である。第13工程はキャップ取り付け工程であり、キャップ供給装置29からキャップ30がキャップ締付け装置31に供給され、スパウトの口部に締めつけて取り付けられる。第14工程では、ストロボ33、CCDカメラ35等で構成されるキャップ締付け検査装置により、キャップの締めつけ状態が検査される。そして第15工程で排出コンベア37上に排出されて工程を終了する。
In the next fifth step, the cleaning liquid and air are sprayed using the spout
上記の充填の工程で、内容液がスパウト付きの袋状容器に充填される際には、泡立ちが少なく、充填時間が短く、更にはスパウト周囲への液だれが無いことが望まれる。充填をスパウトから行う場合、充填ノズルはスパウト内に挿入するか、スパウトを充填ノズル内に内装する形態が取られている。スパウトの内径は一般に10mmφ以下の小径であるため、前者の場合は充填ノズルの開口径は更に小径とせざるを得ない。そのため、充填流速は速くなり液が泡立ち易い条件となる。後者の場合、ノズルの開口径はスパウト外径となり充填流速の点での不利はないが、充填後ノズルがスパウトから離れる際に残留液のボタ落ち現象を起しやすいという問題がある。充填する内溶液が経腸栄養剤のように泡立ち易く、粘性が低い内容液の場合、容器内で泡立つ現象やノズルからボタ落ち現象が起こりやすく、上記の要望への対応は厳しいものとなる。
充填後のボタ落ち現象の課題に対応した従来技術としては充填ノズルの開口部近傍に網目体を配置し、液の表面張力を利用し、ノズルからの液だれを防止する技術が特許文献2に示されている。この技術は、中空のノズル本体と、該ノズル本体の下部に設けられた開口部と、該開口部の上方に位置する液止め用網目体とを備えた液体用充填ノズルにおいて、前記開口部は網目体の支持部位よりも下方且つ径内方に小間隔で延びている延長部と、延長部先端の径の縮小した開口先端と、延長部と網目体との間の液保持用の環状空間とを有し、且つ網目体の最下端が開口先端の最内周の最上端よりも上方にあり、該開口部は、開口先端と網目体の間隔、開口部の中心線と網目体下面の交点と開口先端を通る水平面との距離、開口先端直径寸法を所定条件に設定して液だれ防止機能をもたせたものである。
Patent Document 2 discloses a technique for preventing dripping from a nozzle by arranging a mesh body in the vicinity of an opening of a filling nozzle and utilizing the surface tension of the liquid as a conventional technique corresponding to the problem of the dripping phenomenon after filling. It is shown. This technique is a liquid filling nozzle including a hollow nozzle body, an opening provided at a lower portion of the nozzle body, and a liquid stopping network located above the opening. An extension extending below the support portion of the mesh body and radially inward at a small interval, an opening tip having a reduced diameter at the tip of the extension, and an annular space for holding liquid between the extension and the mesh body And the lowermost end of the mesh body is higher than the uppermost end of the innermost circumference of the opening tip, and the opening is the distance between the opening tip and the mesh body, the center line of the opening and the lower surface of the mesh body The distance between the intersection and the horizontal plane passing through the opening tip, and the opening tip diameter are set to predetermined conditions to provide a dripping prevention function.
しかし、上記の充填ノズルはスパウト付きの袋状容器用ではなく、缶やボトルといった固形容器用のものであり、泡立ち防止の観点からノズルの開口径を10mmφ以上とし、充填流速を低く抑える反面液のボタ落ちが発生しやすくなるための対策として発案されたものである。これに対し本発明はスパウト付きの袋状容器用の充填ノズルであることから、ノズルの開口径は10mmφ以下であって、例えば8.3mmφ程度を想定すると、上記の充填ノズルより相当程度充填流速は速くなり、充填容器が缶やボトルといった固形容器ではなく、スパウト付きの袋状容器であるといった環境条件が異なっており、それに適した充填の際に、泡立ちが少なく、充填時間が短く、更にはスパウト周囲への液だれが無い充填ノズルによる充填形態の実現が望まれている。
そのような状況の中で本発明の課題は、ノズル開口径をスパウト内径より小さくすることがないものであって、充填の際に、液の泡立ちやスパウト周囲への液だれが少ないスパウト付きの袋状容器用の充填ノズルを提供することにある。
However, the above filling nozzle is not for a spouted bag-like container but for a solid container such as a can or a bottle. From the standpoint of preventing foaming, the nozzle opening diameter is 10 mmφ or more, and the liquid flow rate is kept low. This was invented as a measure for facilitating the occurrence of dripping. On the other hand, since the present invention is a filling nozzle for a bag-like container with a spout, when the opening diameter of the nozzle is 10 mmφ or less, for example, about 8.3 mmφ, the filling flow rate is considerably higher than the above filling nozzle. The environmental conditions are different such that the filling container is not a solid container such as a can or a bottle but a bag-like container with a spout, and there is less foaming and filling time when filling suitable for it, Therefore, it is desired to realize a filling form with a filling nozzle that does not spill liquid around the spout.
Under such circumstances, the problem of the present invention is that the nozzle opening diameter is not made smaller than the spout inner diameter, and at the time of filling, there is a spout with little foaming of liquid and dripping around the spout. The object is to provide a filling nozzle for a bag-like container.
本発明のスパウト付き袋状容器のシャットバルブ式充填ノズルは、ノズル先端部が袋容器のスパウトを嵌合可能な形態であって、前記ノズルは前記スパウトの外径にほぼ等しい径の先端開口部を備え、供給管と前記ノズル先端部間には開閉弁が設置されると共に、前記ノズルの先端開口径にほぼ等しい外径のロッドが該ノズル先端開口部へ進退自在な形態で配置されるようにした。
また、本発明のスパウト付き袋状容器のシャットバルブ式充填ノズルは、上記構成においてノズルの先端開口部の上方には弁座が形成され、中心部には進退自在なロッドを内装したロッド状の弁体を前記弁座に対し摺動自在に配置するようにした。
The shut valve type filling nozzle of the bag-like container with a spout according to the present invention is such that the nozzle tip can fit the spout of the bag container, and the nozzle has a tip opening having a diameter substantially equal to the outer diameter of the spout. And an open / close valve is installed between the supply pipe and the nozzle tip, and a rod having an outer diameter substantially equal to the nozzle tip opening diameter is arranged in such a manner that the rod can be moved forward and backward to the nozzle tip opening. I made it.
Further, the shut valve type filling nozzle of the spouted bag-like container according to the present invention has a rod-like shape in which the valve seat is formed above the tip opening of the nozzle in the above-described configuration, and a rod that can be moved forward and backward is provided in the center. The valve body is slidably disposed with respect to the valve seat.
本発明のスパウト付き袋状容器のシャットバルブ式充填ノズルは、ノズル先端部が袋容器のスパウトを嵌合可能な形態であって、前記ノズルは前記スパウトの外径にほぼ等しい径の先端開口部を備えるようにしたので、充填工程において、袋容器のスパウト先端部はノズル先端部内に密着形態で嵌合され、充填時に空気の吸い込みは生じないので、充填流速が速いときにも泡立ち現象は防止される。また、供給管と前記ノズル先端部間には開閉弁が設置されると共に、前記ノズルの先端開口径にほぼ等しい外径のロッドが該ノズル先端開口部へ進退自在な形態で配置されるようにしたので、所定量が充填され、開閉弁が閉鎖されるとノズル内部に液が残留するが、ノズルの先端開口径にほぼ等しい外径のロッドを変位させて先端開口部に残る液をスパウト内に強制的に排出させることができる。このため、充填工程が終了してノズル先端部が袋容器のスパウトとの嵌合を解除されても、ノズルの先端開口部から液滴が落下することがない。
また、ノズルの先端開口部の上方には弁座が形成され、中心部には進退自在なロッドを内装したロッド状の弁体を前記弁座に対し摺動自在に配置するようにした本発明のスパウト付き袋状容器のメッシュ式充填ノズルは、弁機能を果たす外側ロッドと残留液を排出させる内側ロッドが同心状に配置されるので、構造がコンパクトに収る。また、これらの駆動は同方向の変位駆動であるから、駆動源を共通して用いることが容易である。
The shut valve type filling nozzle of the bag-like container with a spout according to the present invention is such that the nozzle tip can fit the spout of the bag container, and the nozzle has a tip opening having a diameter substantially equal to the outer diameter of the spout. In the filling process, the spout tip of the bag container is fitted into the tip of the nozzle in close contact, and air is not sucked during filling, preventing foaming even when the filling flow rate is high. Is done. Also, an on-off valve is installed between the supply pipe and the nozzle tip, and a rod having an outer diameter substantially equal to the nozzle tip opening diameter is arranged in such a manner that the rod can be advanced and retracted to the nozzle tip opening. Therefore, when a predetermined amount is filled and the on-off valve is closed, the liquid remains inside the nozzle, but the rod with the outer diameter approximately equal to the nozzle tip opening diameter is displaced so that the liquid remaining in the tip opening is transferred into the spout. Can be forcibly discharged. For this reason, even if a filling process is complete | finished and a nozzle front-end | tip part cancels | releases a fitting with the spout of a bag container, a droplet does not fall from the front-end | tip opening part of a nozzle.
Further, the present invention is such that a valve seat is formed above the nozzle tip opening, and a rod-shaped valve body, in which a rod that can be moved back and forth, is disposed at the center, is slidably disposed with respect to the valve seat. The mesh-type filling nozzle of the bag-like container with a spout has a compact structure because the outer rod serving as a valve and the inner rod for discharging the residual liquid are arranged concentrically. In addition, since these drives are displacement drives in the same direction, it is easy to use a common drive source.
図1に本発明に係るスパウト付き袋状容器のシャットバルブ式充填ノズルの第1形態を示す。ここに示す例は充填を停止させる弁体と残留する液を強制排出させるロッドを同心配置させた構成である。充填ノズル本体は先端開口部Aと、その上方に形成された弁座B、側壁に図示していない供給タンクに連通された供給管Cが取り付けられている。前記弁座Bに対向して上方の図示されていない駆動部によって上下方向移動可能なロッド状の弁体Dが取り付けられ、該弁体Dの中央部には細長い円筒空間が形成され、該円筒空間にはノズル内に残留する液を強制排出させるロッドEが摺動自在に装入される。また、図示していないが、前記弁体Dと前記ロッドEをそれぞれ上下方向に変位させる駆動源が備えられている。前記先端開口部Aの内径寸法は袋容器のスパウトSの外径とほぼ等しくされ、前記ロッドEの外径寸法と前記該弁体Dの円筒空間内径寸法も袋容器のスパウトSの外径とほぼ等しくされている。 FIG. 1 shows a first form of a shut valve type filling nozzle of a spouted bag-like container according to the present invention. The example shown here has a configuration in which a valve body for stopping filling and a rod for forcibly discharging remaining liquid are arranged concentrically. The filling nozzle body is provided with a tip opening A, a valve seat B formed thereabove, and a supply pipe C connected to a supply tank (not shown) on the side wall. A rod-shaped valve body D that can be moved in the vertical direction by a drive unit (not shown) facing the valve seat B is attached, and an elongated cylindrical space is formed at the center of the valve body D. A rod E for forcibly discharging the liquid remaining in the nozzle is slidably inserted into the space. Moreover, although not shown in figure, the drive source which displaces the said valve body D and the said rod E to an up-down direction is provided. The inner diameter of the opening A is substantially equal to the outer diameter of the spout S of the bag container. The outer diameter of the rod E and the inner diameter of the cylindrical space of the valve body D are also equal to the outer diameter of the spout S of the bag container. It is almost equal.
従来技術として先に説明したように充填工程では、図1の左側に示したように貯留タンク(図示せず)に接続されている充填ノズルの先端開口部Aが袋状容器のスパウトSの先端部を外側から嵌合するようにして互いに連結させ弁を開いて、予め定められた所定の量の液状物を袋内へ充填させる。一般にパウチと呼ばれるこの袋状容器は排気された状態でこの工程に供給され、缶やボトルといった固形容器のように容器内部に当初に存在する空気はないため、発泡現象は起こりにくいのであるが、液状物を供給するスパウトSの内径が10mmφ以下であることによって、流速値は比較的高くならざるを得ず条件は厳しい。しかし、本発明の形態ではノズル先端開口部AがスパウトSの先端部と嵌合された状態で液状物が充填されるため、充填時の空気の吸い込みはなく、泡立ち現象は起こりにくい状態で充填を行うことができる。所定の量の液状物が袋内へ充填されると、図1の中央に示すようにロッドEを内装した弁体Dが降下して弁座Bに当接し、弁を閉鎖して充填を止める。この状態では先端開口部A内の微小空間に液が残留することになる。そこで、本発明では次のステップとして図1の右側に示すように、ロッドEを更にスパウトSの開口部天面に当接するまで降下させ、前記の残留液を強制的にスパウトS内に排出させる。この動作によって、残留液は完全に排出されるため、充填工程が終了してノズル先端部Aが袋容器のスパウトSとの嵌合を解除されても、ノズルの先端開口部Aから液滴が落下することがない。また、次の袋容器のスパウトと嵌合されるまで、ロッドEがノズルの先端開口部Aを封止した状態を持続させれば、その間の液滴落下もない。 As described above as the prior art, in the filling step, as shown on the left side of FIG. 1, the tip opening A of the filling nozzle connected to the storage tank (not shown) is the tip of the spout S of the bag-like container. The parts are connected to each other so as to be fitted from the outside, the valve is opened, and a predetermined amount of liquid material is filled into the bag. This bag-like container generally called a pouch is supplied to this process in an exhausted state, and since there is no air initially present inside the container like solid containers such as cans and bottles, the foaming phenomenon is unlikely to occur. When the inner diameter of the spout S for supplying the liquid material is 10 mmφ or less, the flow velocity value must be relatively high, and the conditions are severe. However, in the embodiment of the present invention, since the liquid material is filled with the nozzle tip opening A fitted to the tip of the spout S, the air is not sucked at the time of filling, and the foaming phenomenon is hardly caused. It can be performed. When a predetermined amount of liquid material is filled into the bag, as shown in the center of FIG. 1, the valve body D with the rod E is lowered and abuts against the valve seat B to close the valve and stop filling. . In this state, the liquid remains in the minute space in the tip opening A. Therefore, in the present invention, as shown in the right side of FIG. 1, as the next step, the rod E is further lowered until it comes into contact with the top of the opening of the spout S, and the residual liquid is forcibly discharged into the spout S. . Since the residual liquid is completely discharged by this operation, even if the filling process is completed and the nozzle tip A is released from the spout S of the bag container, droplets are discharged from the nozzle tip opening A. Never fall. Further, if the rod E keeps sealing the tip opening A of the nozzle until it is fitted with the spout of the next bag container, there is no drop of liquid droplets during that time.
この実施形態ではノズルの先端開口部Aの上方には弁座Bが形成され、中心部には進退自在なロッドEを内装したロッド状の弁体Dを前記弁座Bに対し摺動自在に配置するように構成されており、弁機能を果たす外側ロッドDと残留液を排出させる内側ロッドEが同心状に配置されている。充填工程での好適な動作を説明すると、まず、空隙無くつぶされた形態で袋容器が搬送され、そのスパウトSの先端部へノズルの先端開口部Aが降下して外側から勘合する。このときの充填ノズルの形態は図1の右側に示す停止時2、すなわち、ロッドEが先端開口部Aを封止した状態となっている。嵌合形態がとられるとロッドEが弁体D内を摺動上昇し、先端部が弁位置と一致した状態、すなわち図1の中央に示す停止時1の形態となり、引き続きロッドEの先端部が弁位置と一致した状態で弁体Dが弁座Bから離れ弁を解放する。すなわち、図1の左側に示す充填時の形態となって、充填されるべき液状物がタンクから供給管Cを経て圧送されてくる。この液は弁部を経由してスパウトSを介し袋容器内に充填される。所定量の充填が終了したならば、弁体DがロッドEと一体的に下降し弁座Bに当接する図1の中央に示す停止時1の形態に戻り、これで弁が閉鎖となるので充填は終了する。このとき、先端開口部Aの小空間には液が残留した状態となるので、ロッドEを更にスパウトSの天面に当接するまで下方へ変位駆動させて、この残留液をスパウトS内に排出させる。すなわち、当初の図1の右側に示す停止時2の形態に戻る。この状態で充填された袋容器の嵌合は解除され、次の工程に送られると共にあらたな空の袋容器が搬送されてくる。
この実施形態では残留液の排出を行うロッドEと弁体Dが同心配置されているので、コンパクトな充填ノズルの構造が実現できる。また、これらの駆動は同方向の変位駆動であり、近接しているので、油圧などの流体機構を駆動源として共通して用いることが容易である。
In this embodiment, a valve seat B is formed above the tip opening A of the nozzle, and a rod-shaped valve body D having a rod E that can be advanced and retracted at the center is slidable with respect to the valve seat B. The outer rod D that performs the valve function and the inner rod E that discharges the residual liquid are arranged concentrically. The preferred operation in the filling process will be described. First, the bag container is conveyed in a crushed form without a gap, and the tip opening A of the nozzle descends to the tip of the spout S and fits from the outside. The form of the filling nozzle at this time is 2 at the time of stop shown on the right side of FIG. 1, that is, the state where the rod E seals the tip opening A. When the fitting form is taken, the rod E slides and rises in the valve body D, and the tip end portion coincides with the valve position, that is, the stop state 1 shown in the center of FIG. In the state where the valve position coincides with the valve position, the valve body D leaves the valve seat B and releases the valve. That is, in the filling mode shown on the left side of FIG. 1, the liquid material to be filled is pumped from the tank through the supply pipe C. This liquid is filled into the bag container through the spout S via the valve portion. When the predetermined amount of filling is completed, the valve body D is lowered integrally with the rod E and returns to the form of the stop 1 shown in the center of FIG. 1 where the valve is closed. Filling ends. At this time, since the liquid remains in the small space of the tip opening A, the rod E is further displaced downward until it contacts the top surface of the spout S, and the residual liquid is discharged into the spout S. Let That is, it returns to the form at the time of stop 2 shown on the right side of FIG. The fitting of the bag container filled in this state is released, and it is sent to the next process and a new empty bag container is conveyed.
In this embodiment, since the rod E for discharging the residual liquid and the valve body D are arranged concentrically, a compact filling nozzle structure can be realized. Further, since these drives are displacement drives in the same direction and are close to each other, it is easy to commonly use a fluid mechanism such as hydraulic pressure as a drive source.
本発明において、弁機構と残留液排出機構は必ずしも同心配置する必要はない。図2に本発明に係るスパウト付き袋状容器のシャットバルブ式充填ノズルの第2形態を示す。ここに示す例は弁機構を残留液排出用のロッドEとは別の位置、この例では供給管部分に配置した形態である。図2の左側が本発明に係る第2実施形態充填ノズルの充填時の形態であって、第1形態と同様に弁部Fが解放された状態で液状物が供給タンクから供給管Fを経て供給され、液状物が先端開口部A、スパウトSを介して袋容器内へ充填される。この際、液状物は嵌合状態でノズルから袋容器へ移送されるので、この部分での空気の吸い込みはなく、充填流速が比較的高い状態でも液の発泡現象は生じることはない。所定量の充填がなされたならば、図2の中央に示したように弁部Fが閉鎖状態にされ、これによって液状物の充填は停止される。引き続きロッドEが下降変位して先端開口部A内に進入し、この部分に残留している液をスパウト内へ強制排除する。これが図2の右側に示した形態である。この実施形態におけるロッドEの働きは、残留液を排除すると共にノズル内に残留している液を封止する機能も果たすものである。 In the present invention, the valve mechanism and the residual liquid discharge mechanism are not necessarily arranged concentrically. FIG. 2 shows a second embodiment of the shut valve type filling nozzle of the spouted bag-like container according to the present invention. In the example shown here, the valve mechanism is arranged at a position different from the rod E for discharging the residual liquid, in this example, in the supply pipe portion. The left side of FIG. 2 is a form at the time of filling of the filling nozzle of the second embodiment according to the present invention, and the liquid material is supplied from the supply tank through the supply pipe F with the valve portion F released as in the first form. The liquid material is supplied and filled into the bag container through the tip opening A and the spout S. At this time, since the liquid material is transferred from the nozzle to the bag container in a fitted state, air is not sucked in this portion, and the liquid foaming phenomenon does not occur even when the filling flow rate is relatively high. When a predetermined amount is filled, the valve portion F is closed as shown in the center of FIG. 2, and the filling of the liquid material is stopped. Subsequently, the rod E moves downward and enters the tip opening A, and the liquid remaining in this portion is forcibly removed into the spout. This is the form shown on the right side of FIG. The function of the rod E in this embodiment also functions to eliminate the residual liquid and seal the liquid remaining in the nozzle.
この第2の形態の充填工程は、まず、空隙無くつぶされた形態で袋容器が搬送され、そのスパウトSの先端部へノズルの先端開口部Aが降下してを外側から勘合する点では先の形態と変わりはない。このときの充填ノズルの形態は図2の右側に示す停止時2、すなわち、ロッドEが先端開口部Aを封止すると共に弁部Fが閉鎖された状態となっている。嵌合形態がとられるとロッドEが上昇し、先端開口部Aが解放された状態、すなわち図2の中央に示す停止時1の形態となり、引き続き弁部Fは閉鎖された状態となっている。次に弁部Fが解放され、図2の左側に示す充填時の形態となって、充填されるべき液状物がタンクから供給管Fを経て圧送されてくる。この液は先端開口部Aを経由してスパウトSを介し袋容器内に充填される。所定量の充填が終了したならば、図2の中央に示す弁部Fが閉鎖された形態となって充填は終了する。このとき、先端開口部Aは解放状態で先端開口部Aの小空間のみならずノズル内には液が残留した状態となるので、ロッドEを先端開口部A内に進入させ、更にスパウトSの天面に当接するまで下方へ変位駆動させて、この残留液をスパウトS内に排出させる。すなわち、当初の図2の右側に示す停止時2の形態に戻る。この状態で充填された袋容器の嵌合は解除され、次の工程に送られると共にあらたな空の袋容器が搬送されてくる。 The filling process of this second form is first performed in that the bag container is transported in a crushed form without a gap, and the tip opening A of the nozzle descends to the tip of the spout S to fit from the outside. The form is no different. The form of the filling nozzle at this time is 2 at the time of stop shown on the right side of FIG. 2, that is, the rod E seals the tip opening A and the valve F is closed. When the fitting form is taken, the rod E rises and the tip opening A is released, that is, the form at the time of stop 1 shown in the center of FIG. 2, and the valve part F is continuously closed. . Next, the valve portion F is released, and the liquid material to be filled is pumped from the tank through the supply pipe F in the filling mode shown on the left side of FIG. This liquid is filled into the bag container via the spout S via the tip opening A. When the predetermined amount of filling is completed, the filling is completed with the valve portion F shown in the center of FIG. 2 being closed. At this time, since the tip opening A is in a released state, the liquid remains in the nozzle as well as in the small space of the tip opening A, so that the rod E enters the tip opening A, and the spout S The remaining liquid is discharged into the spout S by being displaced downward until it comes into contact with the top surface. In other words, the system returns to the stop mode 2 shown on the right side of FIG. The fitting of the bag container filled in this state is released, and it is sent to the next process and a new empty bag container is conveyed.
A 先端開口部 B 弁座
C 供給管 D 弁体
E ロッド F 弁部
S スパウト
A Tip opening B Valve seat C Supply pipe D Valve body E Rod F Valve part S Spout
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Cited By (2)
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JP2021088394A (en) * | 2019-12-05 | 2021-06-10 | 凸版印刷株式会社 | Filling nozzle |
JP2022079519A (en) * | 2017-05-15 | 2022-05-26 | 大日本印刷株式会社 | Container and distributor |
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JPS5657625A (en) * | 1979-10-04 | 1981-05-20 | Pola Kasei Kogyo Kk | Filling nozzle |
JPS6193025A (en) * | 1984-07-31 | 1986-05-12 | テトラ デブ−コ | Valve gear |
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JP2022079519A (en) * | 2017-05-15 | 2022-05-26 | 大日本印刷株式会社 | Container and distributor |
JP7322993B2 (en) | 2017-05-15 | 2023-08-08 | 大日本印刷株式会社 | Containers and dispensing equipment |
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JP7363432B2 (en) | 2019-12-05 | 2023-10-18 | Toppanホールディングス株式会社 | filling nozzle |
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