JP2015168457A - Filling nozzle and filling device - Google Patents

Filling nozzle and filling device Download PDF

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JP2015168457A
JP2015168457A JP2014043787A JP2014043787A JP2015168457A JP 2015168457 A JP2015168457 A JP 2015168457A JP 2014043787 A JP2014043787 A JP 2014043787A JP 2014043787 A JP2014043787 A JP 2014043787A JP 2015168457 A JP2015168457 A JP 2015168457A
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filling
bellows
filling nozzle
transmission component
drive transmission
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康彦 木村
Yasuhiko Kimura
康彦 木村
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a filling nozzle and a filling device capable of improving durability of a bellows as an isolation member arranged in a filling nozzle in a filling device for beverage or the like, and capable of improving operation rate of the device.SOLUTION: The filling nozzle is used for filling with beverage or the like, and in the filling nozzle, there are provided at least a drive transmission component for driving a bulb for controlling supply of a filling material, and a bellows which covers a periphery of the drive transmission component and isolates the drive transmission component from the filling material in the filling nozzle. The bellows is formed of a fluororesin, and has a repeated structure composed of curved mountain parts and valley parts. The filling device in which the filling nozzle is mounted is also provided.

Description

本発明は、容器内に飲料等の液体を充填する充填ノズル、およびこれを搭載した充填装置に関し、特に、アセプティック充填を必要とする飲料等の充填装置において、容器内に飲料等を無菌充填する際に好適に用いられる充填ノズル、およびこれを搭載した充填装置に関する。   The present invention relates to a filling nozzle that fills a container with a liquid such as a beverage, and a filling device equipped with the same, and in particular, in a filling device such as a beverage that requires aseptic filling, the container is aseptically filled. In particular, the present invention relates to a filling nozzle that is preferably used, and a filling device equipped with the same.

充填ノズルにおいては、容器内に飲料等を充填するためにバルブの開閉動作を行う必要がある。この開閉動作にはエア圧等の力が利用されており、この力で動作するシリンダからの駆動がバルブへと伝えられる。従って、充填ノズルの内部にはシリンダからの駆動を伝えるための駆動伝達部品を配置する必要がある。   In the filling nozzle, it is necessary to open and close the valve in order to fill the container with a beverage or the like. A force such as air pressure is used for the opening / closing operation, and driving from the cylinder operating with this force is transmitted to the valve. Accordingly, it is necessary to arrange a drive transmission component for transmitting the drive from the cylinder inside the filling nozzle.

バルブを動作させるための駆動伝達部品は、その往復動作機構から潤滑油などが塗布される場合が多い。このため、駆動伝達部品と充填ノズル内部の充填物とを隔離するための部材として、駆動伝達部品の周りを覆うベローズが用いられてきた。   In many cases, the drive transmission component for operating the valve is coated with lubricating oil or the like from its reciprocating mechanism. For this reason, a bellows that covers the periphery of the drive transmission component has been used as a member for isolating the drive transmission component from the filling inside the filling nozzle.

バルブの開閉動作を行う際に駆動伝達部品が往復動作するが、この時、駆動伝達部品の周りを覆っているベローズも伸縮動作を繰り返すこととなる。このベローズとして、従来ゴム製の伸縮体が用いられていた(特許文献1)。このようなゴム製のベローズを用いると、伸縮性に優れていることから駆動伝達部品の往復動作への追従には対応できるが、繰り返しの伸縮動作によりゴムに伸びや破れが発生しやすい傾向があった。このため、繰り返しの使用には適していなかった。万が一ゴムが傷付いたり破れたりしてしまうと、飲料等の充填物の中に油が漏れ出す原因となる。   When the valve is opened and closed, the drive transmission component reciprocates. At this time, the bellows covering the drive transmission component repeats the expansion and contraction operation. Conventionally, a rubber elastic body has been used as the bellows (Patent Document 1). Using such a rubber bellows, it is excellent in stretchability, so it can respond to the reciprocating motion of the drive transmission component, but the rubber tends to stretch or break due to repeated stretching operations. there were. For this reason, it was not suitable for repeated use. If the rubber is damaged or torn, it will cause oil to leak into the filling such as beverage.

また、飲料等を充填する充填装置の場合、アセプティックを維持するために、飲料等の充填時以外に、蒸気による滅菌や薬品による洗浄が行われる。こういった環境下においては、長期間の使用によりゴムの形状や物性に変化が発生してしまうため、定期的な交換が必要となる。さらには、ベローズは充填ノズルの内部に設けられているため、定期交換時の交換作業は大きな負担となり、充填装置の稼働率を下げる原因となっていた。   In addition, in the case of a filling device for filling beverages or the like, in order to maintain the aseptic, sterilization with steam or cleaning with chemicals is performed in addition to the filling of beverages or the like. Under such circumstances, changes in the shape and physical properties of the rubber occur due to long-term use, and therefore periodic replacement is necessary. Furthermore, since the bellows is provided inside the filling nozzle, the replacement work at the time of periodic replacement is a heavy burden, which causes a reduction in the operating rate of the filling device.

一方、ベローズの耐久性を向上させる目的で、ベローズの構造を2層とする技術が開示されている(特許文献2)。つまり、外方側ベローズと上記外方側ベローズの内方に設けられた内方側ベローズとを形成し、前記外方側ベローズは金属製であると共に前記内方側ベローズはゴム等の弾性材により形成したものである。   On the other hand, for the purpose of improving the durability of the bellows, a technique in which the structure of the bellows has two layers is disclosed (Patent Document 2). That is, an outer side bellows and an inner side bellows provided inside the outer side bellows are formed, and the outer side bellows is made of metal and the inner side bellows is an elastic material such as rubber. It is formed by.

このようにベローズの構造を2層とすることで、単にゴム製のベローズを用いた場合と比べて耐久性の向上はある程度見込めるが、ベローズの構造自体が複雑化してしまう点や、依然としてゴム製のベローズを用いていることから、ゴムの破損や物性変化が発生してしまう点、さらには、ゴム製あるいは金属製のベローズのいずれかが破損した場合の発見が遅れてしまう点などが懸念される。   By making the bellows structure two layers in this way, durability can be expected to some extent as compared to the case of using a rubber bellows, but the structure of the bellows itself is complicated and still made of rubber. The use of this bellows may cause damage to the rubber and changes in physical properties, and there may be concerns about delays in detection when either the rubber or metal bellows is damaged. The

特許第2500700号公報Japanese Patent No. 2500700 特開2005−155676号公報JP 2005-155676 A

本発明は、前述のような問題点に鑑みてなされたものであり、飲料等の充填装置において充填ノズルの内部に設けられる隔離部材としてのベローズの耐久性を向上させ、装置稼働率を向上可能な充填ノズルおよび充填装置を提供することである。   The present invention has been made in view of the above-mentioned problems, and can improve the durability of the bellows as a separating member provided inside the filling nozzle in a filling device for beverages and the like, thereby improving the device operating rate. Providing a filling nozzle and filling device.

本発明は、上述の課題を達成するために、以下の様な手段を講じる。
第1の発明は、飲料等を充填するための充填ノズルであって、前記充填ノズル内部には、充填物の供給を制御するバルブを駆動させるための駆動伝達部品と、前記駆動伝達部品の周りを覆い、前記駆動伝達部品と充填ノズル内部の充填物とを隔離するためのベローズとを少なくとも有しており、前記ベローズはフッ素系樹脂で形成され、且つ、湾曲した山部と谷部の繰り返し構造を有することを特徴とする充填ノズルである。
第2の発明は、前記ベローズが切削加工により形成されていることを特徴とする請求項1に記載の充填ノズルである。
第3の発明は、前記ベローズの前記山部と前記谷部の繰り返し構造が、U字型もしくは半円環状型の何れかであることを特徴とする、請求項1または請求項2に記載の充填ノズルである。
第4の発明は、請求項1乃至請求項3のいずれかに記載の充填ノズルを搭載した充填装置である。
In order to achieve the above-mentioned problems, the present invention takes the following measures.
A first invention is a filling nozzle for filling a beverage or the like, and inside the filling nozzle, there is a drive transmission component for driving a valve for controlling the supply of the filling material, and the periphery of the drive transmission component And at least a bellows for isolating the drive transmission component and the filling inside the filling nozzle, the bellows being formed of a fluorine-based resin, and repeating a curved peak and valley A filling nozzle characterized by having a structure.
A second invention is the filling nozzle according to claim 1, wherein the bellows is formed by cutting.
According to a third aspect of the present invention, the repeating structure of the crest and trough of the bellows is either U-shaped or semi-annular, It is a filling nozzle.
4th invention is the filling apparatus carrying the filling nozzle in any one of Claim 1 thru | or 3.

本発明の充填ノズルによれば、充填ノズルの内部に設けられる隔離部材としてのベローズがフッ素系樹脂で形成されているので、従来のゴム製ベローズと比較して機械的強度に優れ、繰り返しの使用においても形状変化が生じることはない。また、耐薬品性にも優れていることから、薬品による洗浄等が行われた場合であっても物性変化が発生しにくいといった効果も得られる。また、ベローズの構造を2層とする必要がなくなるため構造自体が複雑化せず、ゴム製あるいは金属製のベローズのいずれかが破損した場合であっても、破損の発見が遅れてしまう心配がない。従って、本発明の充填ノズルを搭載した充填装置によれば、定期交換時の交換作業の負担を軽減し、充填装置の稼働率を向上させることができる。   According to the filling nozzle of the present invention, since the bellows as a separating member provided inside the filling nozzle is formed of a fluorine-based resin, it has excellent mechanical strength compared to conventional rubber bellows, and is used repeatedly. No change in shape will occur. Further, since the chemical resistance is also excellent, an effect that the change in physical properties hardly occurs even when cleaning with chemicals is performed. In addition, since the structure of the bellows need not be two layers, the structure itself does not become complicated, and even if either the rubber or metal bellows is damaged, there is a concern that the discovery of the damage may be delayed. Absent. Therefore, according to the filling apparatus equipped with the filling nozzle of the present invention, it is possible to reduce the burden of replacement work at the time of periodic replacement and improve the operating rate of the filling apparatus.

本発明の実施形態における充填ノズルの概略断面図。The schematic sectional drawing of the filling nozzle in embodiment of this invention. (a)本発明の実施形態における、ベローズ形状の一例(U字型形状)を示した概略図。(b)本発明の実施形態における、ベローズ形状の他の例(半円環状型形状)を示した概略図。(A) Schematic which showed an example (U-shaped shape) of the bellows shape in embodiment of this invention. (B) Schematic which showed the other example (semi-annular shape) of bellows shape in embodiment of this invention.

以下、本発明の内容を詳細に説明する。
本発明は、充填装置の稼働率向上に資する充填ノズルを提供するものである。特に、充填ノズルの内部に設けられる隔離部材としてのベローズを2層構造のように複雑な構造とすることなく、また、繰り返しの使用においても形状や物性の変化が発生しにくい素材で形成することで耐久性を向上させている。
ベローズの形状としては湾曲した山部と谷部の繰り返し構造を有している。これは、駆動伝達部品の往復動作へ追従する際に必要な伸縮性を持たせる上で有利な構造である。特に、伸縮性と内部洗浄時における洗浄のし易さ等も考慮した場合、図2に示すようなU字型もしくは半円環状型の形状としておくことが好ましいが、適宜、耐久性や洗浄性などを考慮して形状を設計することができる。例えば、上述のようなU字型もしくは半円環状型の形状にベローズを設計しておけば、谷部への蒸気や洗浄薬品等の導入がスムーズに行なわれ、洗浄性能の向上が見込める。
また、湾曲した山部と谷部の繰り返し構造を有しているので、伸縮時に局所的に応力が集中することなく、応力を分散させることができる。そのため、ベローズにクラックが入ってしまったり、局所的な疲労による材料の劣化が発生してしまったりする可能性を低減させることができるので、ベローズの耐久性を向上できる。
Hereinafter, the contents of the present invention will be described in detail.
The present invention provides a filling nozzle that contributes to improving the operating rate of a filling apparatus. In particular, the bellows as a separating member provided inside the filling nozzle should not be a complicated structure such as a two-layer structure, and should be formed of a material that does not easily change its shape and physical properties even after repeated use. The durability is improved.
As the shape of the bellows, it has a repeated structure of a curved peak and valley. This is an advantageous structure for providing the elasticity necessary for following the reciprocating motion of the drive transmission component. In particular, considering the stretchability and ease of cleaning during internal cleaning, it is preferable to have a U-shaped or semi-annular shape as shown in FIG. The shape can be designed in consideration of the above. For example, if the bellows is designed in a U-shaped or semi-annular shape as described above, steam, cleaning chemicals, etc. are smoothly introduced into the valleys, and an improvement in cleaning performance can be expected.
Moreover, since it has the repeating structure of the curved peak part and trough part, stress can be disperse | distributed, without stress concentrating locally at the time of expansion / contraction. Therefore, it is possible to reduce the possibility of cracks in the bellows or deterioration of the material due to local fatigue, so that the durability of the bellows can be improved.

上述のような湾曲した山部と谷部の繰り返し構造を有するベローズを形成する場合、用いるフッ素系樹脂が所望の形状に加工可能であれば、その加工方法に特に制限はない。例えば、溶融押出成形法、射出成形法、圧縮成形法などの種々の加工方法を用いることができる。これらの成形法を用いた場合、形成されたベローズ内で樹脂内部応力にばらつきが出たり、製造ロット間の品質ばらつきが出たりすることも考えられる。繰り返しの使用において、樹脂内部の応力変化やそれに由来する形状変化を少なくする必要がある場合には、切削加工により所望の形状に加工することが、品質安定化や耐久性の観点からも好ましい。   When forming a bellows having a repeated structure of curved peaks and valleys as described above, the processing method is not particularly limited as long as the fluororesin used can be processed into a desired shape. For example, various processing methods such as a melt extrusion method, an injection molding method, and a compression molding method can be used. When these molding methods are used, it is conceivable that the internal stress of the resin varies within the formed bellows, and the quality varies among production lots. In repeated use, when it is necessary to reduce the stress change inside the resin and the shape change derived therefrom, it is preferable from the viewpoint of quality stabilization and durability to process it into a desired shape by cutting.

図1は、本発明の実施形態における充填ノズルの概略断面図である。本実施形態の充填ノズル2の内部にはプランジャー4を備えており、このプランジャー4を往復動作させることで、充填ノズル2の先端部にあるバルブ(図示せず)の開閉動作を行なっている。   FIG. 1 is a schematic cross-sectional view of a filling nozzle in an embodiment of the present invention. A plunger 4 is provided inside the filling nozzle 2 of the present embodiment, and a valve (not shown) at the tip of the filling nozzle 2 is opened and closed by reciprocating the plunger 4. Yes.

このように、バルブの開閉動作を行なうためには、プランジャー4と、それに力を伝える駆動伝達部品3が往復動作するが、駆動伝達部品3の周りには潤滑油が塗布されているため、充填ノズル2内部の充填物流路5を通る充填物と駆動伝達部品3とを隔離するためにベローズ1が設けられている。   Thus, in order to perform the opening and closing operation of the valve, the plunger 4 and the drive transmission component 3 that transmits the force to the plunger 4 reciprocate, but since the lubricating oil is applied around the drive transmission component 3, A bellows 1 is provided in order to isolate the filling through the filling passage 5 inside the filling nozzle 2 and the drive transmission component 3.

ベローズ1の形状は、図1のように湾曲した山部と谷部の繰り返し構造を有しており、駆動伝達部品3の往復動作にあわせて伸縮動作を繰り返す。本発明者は、充填物の充填動作を繰り返し実施することでベローズ1の耐久性確認を行なったが、繰り返しの充填動作によってもベローズ1は破損することなく、飲料等の充填物の中に潤滑油が漏れ出す不具合は発生しなかった。   The shape of the bellows 1 has a repeated structure of a crest and a trough that are curved as shown in FIG. 1, and the expansion and contraction operation is repeated in accordance with the reciprocating operation of the drive transmission component 3. The inventor has confirmed the durability of the bellows 1 by repeatedly performing the filling operation of the filling material, but the bellows 1 is not damaged by the repeated filling operation and is lubricated in the filling material such as a beverage. There was no problem of oil leaking.

また、飲料等を充填した後に、アセプティックを維持するための薬品による定置洗浄を行なったところ、充填ノズル2内部に設けられたベローズ1は、その谷部を含めて飲料等の残渣無くきれいに洗浄できた。さらには、内部洗浄後の充填ノズル2を用いて再度飲料等の充填動作を繰り返し試みたところ、洗浄前と同様の充填動作が可能であった。   Moreover, after filling with beverages and the like, and performing stationary cleaning with chemicals to maintain the aseptic, the bellows 1 provided in the filling nozzle 2 can be cleaned cleanly without any residue such as beverages including the valleys. It was. Furthermore, when the filling operation of the beverage or the like was repeated using the filling nozzle 2 after the internal cleaning, the same filling operation as before the cleaning was possible.

このように、本発明の充填ノズルを用いることで、繰り返しの使用においてもベローズの形状や物性が変化せず、安定した充填動作が可能であった。また、充填ノズル内部を洗浄した後であっても、洗浄前と同様の充填動作が可能となり、優れた耐久性と洗浄性を有する充填ノズルを提供することができた。また、当該充填ノズルを搭載した充填装置にあっては、その稼働率を向上させることができた。   Thus, by using the filling nozzle of the present invention, the shape and physical properties of the bellows did not change even during repeated use, and a stable filling operation was possible. Further, even after the inside of the filling nozzle is washed, the filling operation similar to that before washing can be performed, and a filling nozzle having excellent durability and washability can be provided. Moreover, in the filling apparatus equipped with the filling nozzle, the operating rate could be improved.

1・・・ベローズ
2・・・充填ノズル
3・・・駆動伝達部品
4・・・プランジャー
5・・・充填物流路
DESCRIPTION OF SYMBOLS 1 ... Bellows 2 ... Filling nozzle 3 ... Drive transmission component 4 ... Plunger 5 ... Filling material flow path

Claims (4)

飲料等を充填するための充填ノズルであって、前記充填ノズル内部には、
充填物の供給を制御するバルブを駆動させるための駆動伝達部品と、
前記駆動伝達部品の周りを覆い、前記駆動伝達部品と充填ノズル内部の充填物とを隔離するためのベローズとを少なくとも有しており、
前記ベローズはフッ素系樹脂で形成され、且つ、湾曲した山部と谷部の繰り返し構造を有することを特徴とする充填ノズル。
A filling nozzle for filling beverages and the like inside the filling nozzle,
A drive transmission component for driving a valve for controlling the supply of the filler;
And at least a bellows for covering the drive transmission component and isolating the drive transmission component and the filling inside the filling nozzle,
The bellows is formed of a fluorine-based resin and has a repeated structure of curved peaks and valleys.
前記ベローズが切削加工により形成されていることを特徴とする請求項1に記載の充填ノズル。   The filling nozzle according to claim 1, wherein the bellows is formed by cutting. 前記ベローズの前記山部と前記谷部の繰り返し構造が、U字型もしくは半円環状型の何れかであることを特徴とする、請求項1または請求項2に記載の充填ノズル。   The filling nozzle according to claim 1, wherein a repetitive structure of the peak portion and the valley portion of the bellows is either a U-shape or a semi-annular shape. 請求項1乃至請求項3のいずれかに記載の充填ノズルを搭載した充填装置。   A filling device equipped with the filling nozzle according to any one of claims 1 to 3.
JP2014043787A 2014-03-06 2014-03-06 Filling nozzle and filling device Pending JP2015168457A (en)

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JPH04154501A (en) * 1990-10-05 1992-05-27 Shizukou Kk Liquid filling device and washing and sterilization method in the same
JP2001193836A (en) * 2000-01-11 2001-07-17 Nippon Pillar Packing Co Ltd Bellows and fluid equipment using the bellows
US20030071237A1 (en) * 2001-10-11 2003-04-17 Johnson Randall L. Fill valve assembly for filler device
JP2011196420A (en) * 2010-03-18 2011-10-06 Yodogawa Hu-Tech Kk High durability bellows and method of manufacturing the same
JP2012211512A (en) * 2011-03-30 2012-11-01 Iwaki Co Ltd Bellows pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04154501A (en) * 1990-10-05 1992-05-27 Shizukou Kk Liquid filling device and washing and sterilization method in the same
JP2001193836A (en) * 2000-01-11 2001-07-17 Nippon Pillar Packing Co Ltd Bellows and fluid equipment using the bellows
US20030071237A1 (en) * 2001-10-11 2003-04-17 Johnson Randall L. Fill valve assembly for filler device
JP2011196420A (en) * 2010-03-18 2011-10-06 Yodogawa Hu-Tech Kk High durability bellows and method of manufacturing the same
JP2012211512A (en) * 2011-03-30 2012-11-01 Iwaki Co Ltd Bellows pump

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