JP2009073546A - Inert gas-jetting device - Google Patents

Inert gas-jetting device Download PDF

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JP2009073546A
JP2009073546A JP2007246379A JP2007246379A JP2009073546A JP 2009073546 A JP2009073546 A JP 2009073546A JP 2007246379 A JP2007246379 A JP 2007246379A JP 2007246379 A JP2007246379 A JP 2007246379A JP 2009073546 A JP2009073546 A JP 2009073546A
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inert gas
container
opening
head space
stopper plate
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Masayuki Taniguchi
将幸 谷口
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Nihon Tetra Pak KK
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Nihon Tetra Pak KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inert gas-jetting device capable of enhancing the efficiency of replacement with nitrogen in a head space of a vessel, decreasing the consumption of an inert gas, and maintaining the efficiency of replacement with no variation among the vessels. <P>SOLUTION: The vessel 33 which fills a liquid food while remaining the head space and is top-sealed by closing an upper opening 33a has a stopper plate inserted in and mated with the opening 33a of the intermittently transported vessel 33 before closure, and a first jetting nozzle penetrating the stopper plate, mated with and inserted in the opening to jet the inert gas to every head space wherein the stopper plate and the first jetting nozzle are taken in and taken out of the opening in conjunction with each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ヘッドスペースを残して液体食品が充填され、上部開口が徐々に閉鎖されてシールされる容器用の不活性ガス噴射装置に関する。 The present invention relates to an inert gas injection device for a container that is filled with liquid food leaving a head space and whose upper opening is gradually closed and sealed.

牛乳、果汁、清涼飲料等の液体食品用の容器には、各種形状の容器がある。例えば、パウチ容器、ゲーブトップ紙容器では、ヘッドスペースを残して液体食品が充填され、上部開口が徐々に閉鎖されてシールされる容器である。 There are various types of containers for liquid foods such as milk, fruit juice, and soft drinks. For example, a pouch container and a gave top paper container are containers that are filled with liquid food leaving a head space, and the upper opening is gradually closed and sealed.

図３に示すゲーブトップ紙容器３６は、屋根型の上部３６ａと、直方体の本体３６ｂとからなり、シール前には、上部に開口が形成されており、この開口から液体食品が、ヘッドスペースを残す様に、充填される。
この容器では、上方開口を折目線に沿って内側に折り込んだ状態で上端部を止じ合せ、その止じ合面をヒートシール等の手段によってトップシール３６ｃを形成することで、容器が作られる。 The gave top paper container 36 shown in FIG. 3 is composed of a roof-shaped upper part 36a and a rectangular parallelepiped main body 36b, and an opening is formed in the upper part before sealing. Filled to leave.
In this container, the upper opening is fastened in a state where the upper opening is folded inward along the crease line, and the top seal 36c is formed by means of heat sealing or the like on the fastening surface, thereby making the container. .

図４に示す態様のゲーブトップ紙容器用包装充填機では、折目線が付けられた印刷済み積層包装材料が所定形状に裁断され、容器縦方向に縦シールした容器ブランクス３１を得る。ブランクスの底が底部シール手段３２でシールされ、充填ステーション３４ａで容器３３の上部の開口から液体食品が充填手段３４でヘッドスペースを残して充填され、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖され、予熱ステーション３５ａ及びトップシールステーション３５ｂで容器３３の上端がトップシール手段３５でヒートシールされて、図３に示すような充填容器３６を得る。 In the packaging filling machine for the gave top paper container of the aspect shown in FIG. 4, the printed laminated packaging material with a crease line is cut into a predetermined shape to obtain container blanks 31 that are vertically sealed in the container vertical direction. The bottom of the blank is sealed by the bottom sealing means 32, and the liquid food is filled from the opening at the top of the container 33 at the filling station 34a leaving the head space by the filling means 34, and the top opening is folded inward along the crease line. The container 33 is gradually closed and the upper end of the container 33 is heat-sealed by the top sealing means 35 at the preheating station 35a and the top sealing station 35b to obtain a filled container 36 as shown in FIG.

この容器は、上方開口を封止する際に、容器内の上部に、ヘッドスペース（閉空間）が作られる。閉空間内には、酸素ガスが存在し、容器内に充填された液体食品は閉空間内の酸素と接触し酸化による製品劣化が進む。
この劣化によって、風味を損ね、充填完了後の製品の賞味期限に重大な影響を与える。
ヘッドスペース内を、不活性ガスの窒素ガス等に置換する装置、方法が提案されている。（特許文献１、２、３及び４参照） When the upper opening is sealed, a head space (closed space) is created in the upper part of the container. Oxygen gas exists in the closed space, and the liquid food filled in the container comes into contact with oxygen in the closed space, and the product deterioration due to oxidation proceeds.
This deterioration impairs the flavor and seriously affects the shelf life of the product after filling.
An apparatus and a method for replacing the inside of the head space with an inert gas such as nitrogen gas have been proposed. (See Patent Documents 1, 2, 3, and 4)

例えば、開口の閉鎖前に開口を上方から覆う開口カバーと、開口カバーを貫通し容器内のヘッドスペースへ不活性ガスを噴射する第１噴射ノズルとを備え、更に、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖される途中に、開口の上方から容器内のヘッドスペースへ不活性ガスを噴射する第２噴射ノズルも備え、かつ第１噴射ノズルと第２噴射ノズルとの間にも、カバー及び第３の噴射ノズルを設ける不活性ガス置換装置が提案されている。（特許文献１参照）
上部開口が閉鎖される前に第１噴射ノズルから不活性ガスを噴射し、更に、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖される途中にも、第３及び第２の噴射ノズルで不活性ガスを噴射するので、この雰囲気全体が不活性ガスで包まれて、ヘッドスペースへの不活性ガス置換率が向上することが期待される。
しかしながら、第１噴射ノズル、第２及び第３の噴射ノズルから多量の不活性ガスが噴射され、不活性ガスの消費量が多くなる恐れがある。 For example, an opening cover that covers the opening from above before closing the opening, a first injection nozzle that passes through the opening cover and injects an inert gas into the head space in the container, and the upper opening extends along the fold line. The second injection nozzle for injecting an inert gas from above the opening to the head space in the container is also provided in the middle of being closed and gradually closed, and between the first injection nozzle and the second injection nozzle. In addition, an inert gas replacement device provided with a cover and a third injection nozzle has been proposed. (See Patent Document 1)
Before the upper opening is closed, the inert gas is injected from the first injection nozzle. Further, the upper opening is folded inward along the crease line, and the third and second portions are gradually closed. Since the inert gas is ejected by the ejection nozzle, it is expected that the entire atmosphere is covered with the inert gas, and the inert gas replacement ratio to the head space is improved.
However, a large amount of inert gas is injected from the first injection nozzle, the second and third injection nozzles, and the consumption of the inert gas may increase.

また、別の不活性ガス置換装置では、充填ステーションで容器の上部の開口から液体食品が充填手段でヘッドスペースを残して充填され、予熱ステーションでトップシールのために予熱され、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖される。この装置では、２個毎に間欠的に搬送される容器の開口の閉鎖前に開口を上方から覆う開口カバーと、開口カバーを貫通し容器内のヘッドスペースへ不活性ガスを噴射する２本の第１噴射ノズルとが設けられる。更に、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖される途中に、開口の上方から容器内のヘッドスペースへ不活性ガスを噴射する２本の第２噴射ノズルも備える。次いで、トップシールステーションで容器の上端３６ｃがトップシール手段でヒートシールされる。（特許文献２参照）
不活性ガス供給源から噴射ノズルへの導管は、マニホルド４３を介して連通し、他の導管と実質的に同様に不活性ガスを均一に噴射することが期待される。
しかしながら、配管及び導管の設計の自由度が低くより適切な配置、位置決めに不都合が生じ、不活性ガスに置換できる割合が高率ではない場合もある。 In another inert gas replacement device, liquid food is filled from the opening at the top of the container at the filling station leaving a head space with a filling means, preheated for top sealing at the preheating station, and the upper opening is a crease line. Folded inward along and gradually closed. In this apparatus, an opening cover that covers the opening from above before closing the opening of the container that is intermittently conveyed every two pieces, and two that inject inert gas into the head space inside the container through the opening cover A first injection nozzle is provided. Furthermore, two second injection nozzles for injecting an inert gas from above the opening to the head space in the container while the upper opening is folded inward along the crease line and gradually closed are also provided. Next, the upper end 36c of the container is heat-sealed by the top sealing means at the top sealing station. (See Patent Document 2)
The conduit from the inert gas supply to the injection nozzle communicates through the manifold 43 and is expected to inject the inert gas uniformly in substantially the same manner as the other conduits.
However, the degree of freedom in designing pipes and conduits is low, and inconvenience arises in more appropriate arrangement and positioning, and there are cases where the rate of replacement with inert gas is not high.

更に別の不活性ガス置換装置では、複数個の容器の上方開口及び噴射ノズル先端を覆うフードを上方に設け、不活性ガス置換ステーション全体を不活性ガス雰囲気にする。（特許文献３、４参照）
更に、第５の不活性ガス置換装置では、単数個の容器の上方開口及び噴射ノズル先端を覆うカバーを上方に設け、開口上方を不活性ガス雰囲気にする。（特許文献５参照）
特開２００２−３７２１５号公報 特開２００３−１６５５０９号公報 特開平７−１８７１３５号公報 特開昭６１−０４７３２３号公報 特許第３１１３３３９号公報 In still another inert gas replacement device, a hood that covers the upper openings of the plurality of containers and the tip of the injection nozzle is provided above, and the entire inert gas replacement station is made an inert gas atmosphere. (See Patent Documents 3 and 4)
Further, in the fifth inert gas replacement device, a cover that covers the upper opening of the single container and the tip of the injection nozzle is provided above, and the upper part of the opening is made an inert gas atmosphere. (See Patent Document 5)
JP 2002-37215 A JP 2003-165509 A JP 7-187135 A JP 61-047323 A Japanese Patent No. 3113339

従来の不活性ガスに置換する装置及び方法では、不活性ガスに置換できる割合が高率ではなく、不活性ガスの消費量が多量であり、容器が所定個数毎に間欠的に搬送される搬送態様では、所定個数の容器間で置換率のバラツキが生じていた。 In the conventional apparatus and method for replacing with an inert gas, the rate at which the inert gas can be replaced is not high, the consumption of the inert gas is large, and the container is transported intermittently every predetermined number In the aspect, the variation of the substitution rate is generated between a predetermined number of containers.

この発明は、上記の不都合を解消し、容器内のヘッドスペースにおける不活性ガス置換率を高め、不活性ガスの消費量が低減し、容器間の置換率をバラツキなく維持できる不活性ガス噴射装置を提供する。 The present invention eliminates the above inconveniences, increases the inert gas replacement rate in the head space in the container, reduces the consumption of the inert gas, and can maintain the replacement rate between the containers without variation. I will provide a.

この発明の不活性ガス噴射装置は、ヘッドスペースを残して液体食品が充填され、上部開口が閉鎖されてトップシールされる容器であって、所定個数毎に間欠的に搬送される容器の閉鎖前の開口に嵌挿されるストッパー板と、ストッパー板を貫通し開口に嵌挿して容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第１噴射ノズルとを備え、ストッパー板と第１噴射ノズルとが連動して開口に出入れされることを特徴とする。 The inert gas injection device according to the present invention is a container that is filled with liquid food leaving a head space, the top opening is closed, and is top-sealed before the container that is intermittently conveyed every predetermined number is closed. And a predetermined number of first injection nozzles that pass through the stopper plate and are inserted into the opening to inject the inert gas into each head space in the container. The stopper plate and the first injection The nozzle is moved in and out of the opening in conjunction with the nozzle.

この発明の好ましい態様の不活性ガス噴射装置において、閉鎖途中の開口の上方から容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第２噴射ノズルを備える。 The inert gas injection device according to a preferred aspect of the present invention includes a predetermined number of second injection nozzles for injecting an inert gas from above the opening in the middle of closing to each head space in the container.

上記構成を有するこの発明は、以下の様に作用機能し、効果を奏する。
この発明の不活性ガス噴射装置は、ヘッドスペースを残して液体食品が充填され、上部開口が閉鎖されてトップシールされる容器であって、所定個数毎に間欠的に搬送される容器の閉鎖前の開口に嵌挿されるストッパー板と、ストッパー板を貫通し開口に嵌挿して容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第１噴射ノズルとを備え、ストッパー板と第１噴射ノズルとが開口に連動して出入れされる。 The present invention having the above-described configuration functions and functions as follows.
The inert gas injection device according to the present invention is a container that is filled with liquid food leaving a head space, the top opening is closed, and is top-sealed before the container that is intermittently conveyed every predetermined number is closed. And a predetermined number of first injection nozzles that pass through the stopper plate and are inserted into the opening to inject the inert gas into each head space in the container. The stopper plate and the first injection The nozzle is moved in and out in conjunction with the opening.

この発明の上記特徴によって、ストッパー板と第１噴射ノズルとが連動して下方に容器内に嵌挿されると、容器内のヘッドスペース内の空気が押し出され、第１噴射ノズル先端が液面近傍まで近接すると、ヘッドスペース内の残存空気は殆ど無くなる。最接近した時点で第１噴射ノズル先端口から不活性ガスが噴き出し同時に、ストッパー板と第１噴射ノズルとが連動して上方に移動する。不活性ガスの噴き出し量と、ストッパー板と第１噴射ノズルと液面とで形成される体積の増加量が実質的に同じであるとき若しくは若干多めであるとき、不活性ガスが無駄無く効果的に置換することができる。なお、第１噴射ノズル先端が液面に移動する間も、不活性ガスを噴き出させてもよい。
この明細書で、不活性ガスとは、液体食品に悪影響を及ぼさない気体を指し、具体的には、窒素ガス、炭酸ガス、希ガス及びこれらの混合ガスを含む。 According to the above feature of the present invention, when the stopper plate and the first injection nozzle are interlocked and inserted downward into the container, the air in the head space in the container is pushed out, and the tip of the first injection nozzle is near the liquid level. When the distance is close, almost no residual air is left in the head space. At the time of the closest approach, the inert gas is ejected from the front end of the first injection nozzle, and at the same time, the stopper plate and the first injection nozzle are moved upward in conjunction with each other. When the amount of inert gas ejected and the amount of increase in volume formed by the stopper plate, the first injection nozzle and the liquid surface are substantially the same or slightly larger, the inert gas is effective without waste. Can be substituted. Note that the inert gas may be ejected while the tip of the first injection nozzle moves to the liquid level.
In this specification, the inert gas refers to a gas that does not adversely affect the liquid food, and specifically includes nitrogen gas, carbon dioxide gas, rare gas, and mixed gas thereof.

不活性ガス置換率の向上が、全ての容器に均一に見られ、全ての容器において液体食品の酸化が抑えられ、例えば、充填済みの容器は、より長い賞味期間に設定することができ、容器の保管、流通工程に余裕を持てるようになる。 The improvement of the inert gas replacement rate is seen uniformly in all containers, and the oxidation of liquid food is suppressed in all containers. For example, filled containers can be set for a longer shelf life, It will be able to afford to storage and distribution process.

発明の好ましい態様の不活性ガス噴射装置において、閉鎖途中の開口の上方から容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第２噴射ノズルを備え、第１噴射ノズルと第２噴射ノズルとの間に、閉鎖途中の開口の上方から開口を覆う開口カバーを設けない。
第１噴射ノズルにより不活性ガス置換で、製品として十分な置換率を得、容器が、その後、上部開口が徐々に閉鎖されてシールされる。更に、置換率を高める必要がある場合に、第２噴射ノズルを設けることが有効である。装置内部の自由度を犠牲にするので、開口カバーを設ける必要性が低い。従って、不活性ガスの置換率を更に高くし、よりコンパクトな装置を得ることができる。 An inert gas injection device according to a preferred aspect of the present invention includes a predetermined number of second injection nozzles for injecting an inert gas from above an opening in the middle of closing to each head space in a container, the first injection nozzle and the second injection An opening cover that covers the opening from above the opening in the middle of closing is not provided between the nozzle and the nozzle.
By replacing the inert gas by the first injection nozzle, a sufficient replacement rate as a product is obtained, and then the container is sealed by gradually closing the upper opening. Furthermore, it is effective to provide the second injection nozzle when it is necessary to increase the replacement rate. Since the degree of freedom inside the apparatus is sacrificed, the necessity of providing an opening cover is low. Therefore, the replacement rate of the inert gas can be further increased, and a more compact device can be obtained.

以下、本発明の実施の形態について図面を参照しながら詳細に説明する。
図１は、この発明による不活性ガス噴射装置の一実施例を装備するゲーブトップ紙容器用包装充填機の側面図である。
図２は、図１に示す第１噴射ノズルが不活性ガスを噴射する様子・作用機構を示す断面図である。
図３は、この発明による不活性ガス噴射装置に使用する紙容器の斜視図である。
図４は、この発明による不活性ガス噴射装置に使用するゲーブトップ紙容器用包装充填機の斜視図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view of a packaging and filling machine for a gave top paper container equipped with an embodiment of an inert gas injection device according to the present invention.
FIG. 2 is a cross-sectional view showing a state / action mechanism in which the first injection nozzle shown in FIG. 1 injects an inert gas.
FIG. 3 is a perspective view of a paper container used in the inert gas injection device according to the present invention.
FIG. 4 is a perspective view of a glove top paper container packaging and filling machine used in the inert gas injection device according to the present invention.

図４に示すように、この発明による不活性ガス噴射装置に使用するゲーブトップ紙容器用包装充填機では、折目線が付けられた包装材料が所定形状に裁断され、容器縦方向に縦シールした容器ブランクス３１を得る。ブランクスの底が底部シール手段３２でシールされ、上部開口３３ａを上に容器がコンベア上に載置される。
次いで、充填ステーション３４ａで容器３３の上部の開口から牛乳、野菜ジュース等の液体食品が充填手段３４でヘッドスペースを残して充填され、予熱ステーション３５ａで上部フィンが加熱され、上部開口が折目線に沿って内側に折り込んで、徐々に閉鎖され、トップシールステーション３５ｂで容器３３の上端がトップシール手段３５でヒートシールされて、図３に示すような充填容器３６を得る。
不活性ガス噴射装置の第１噴射ノズル（その態様においては、第２噴射ノズルも）は、予熱ステーション３５ａとトップシールステーション３５ｂとの間の位置に設置される。 As shown in FIG. 4, in the glove top paper container packaging and filling machine used in the inert gas injection device according to the present invention, the packaging material with the crease line is cut into a predetermined shape and vertically sealed in the container vertical direction. A container blank 31 is obtained. The bottom of the blank is sealed by the bottom sealing means 32, and the container is placed on the conveyor with the upper opening 33a facing up.
Next, at the filling station 34a, liquid food such as milk and vegetable juice is filled from the opening at the top of the container 33 with the filling means 34 leaving the head space, the upper fin is heated at the preheating station 35a, and the upper opening becomes a crease line. The upper end of the container 33 is heat-sealed by the top sealing means 35 at the top sealing station 35b to obtain a filled container 36 as shown in FIG.
The first injection nozzle (and the second injection nozzle in that mode) of the inert gas injection device is installed at a position between the preheating station 35a and the top seal station 35b.

図１に示すように、この発明の不活性ガス噴射装置の態様では、２個毎に間欠的に搬送される容器３３の閉鎖前の開口３３ａに嵌挿されるストッパー板２０ａ、２０ｂと、ストッパー板２０を貫通し開口３３ａに嵌挿して容器内のヘッドスペース毎へ不活性ガスを噴射する第１噴射ノズル２１ａ、２１ｂとを備える。
図１の矢印に示すように、ストッパー板２０と第１噴射ノズル２１とが連動して開口３３ａに出入れされる。 As shown in FIG. 1, in the embodiment of the inert gas injection device of the present invention, stopper plates 20 a and 20 b that are inserted into the opening 33 a before closing of the container 33 that is intermittently conveyed every two pieces, and the stopper plate First injection nozzles 21a and 21b that pass through 20 and are inserted into the openings 33a to inject inert gas into each head space in the container.
As shown by the arrows in FIG. 1, the stopper plate 20 and the first injection nozzle 21 are moved in and out of the opening 33 a in conjunction with each other.

この特徴によって、図２（ａ）に示すように、ストッパー板２０と第１噴射ノズル２１とが連動して下方に容器内に嵌挿される。図２（b）に示すように、容器内のヘッドスペース３３b内の空気が押し出され、第１噴射ノズル２１先端が液面近傍まで近接すると、ヘッドスペース３３b内の残存空気は殆ど無くなる。最接近した時点で第１噴射ノズル２０先端口から不活性ガスが噴き出し同時に、ストッパー板２０と第１噴射ノズル２１とが連動して上方に移動する。不活性ガスの噴き出し量と、ストッパー板と第１噴射ノズルと液面とで形成される体積の増加量が実質的に同じであるとき若しくは若干多めであるとき、不活性ガスが無駄無く効果的に置換することができる。
上記効果によって、図２（c）に示すように、ヘッドスペース３３bは殆ど不活性ガス２２に置換される。 Due to this feature, as shown in FIG. 2A, the stopper plate 20 and the first injection nozzle 21 are interlocked and inserted into the container downward. As shown in FIG. 2B, when the air in the head space 33b in the container is pushed out and the tip of the first injection nozzle 21 comes close to the liquid level, the residual air in the head space 33b is almost eliminated. At the time of the closest approach, the inert gas is ejected from the front end of the first injection nozzle 20, and at the same time, the stopper plate 20 and the first injection nozzle 21 are moved upward in conjunction with each other. When the amount of inert gas ejected and the amount of increase in volume formed by the stopper plate, the first injection nozzle and the liquid surface are substantially the same or slightly larger, the inert gas is effective without waste. Can be substituted.
Due to the above effect, the head space 33b is almost replaced with the inert gas 22 as shown in FIG.

実施例の不活性ガス噴射装置の第１噴射ノズル２１及び、その態様においては、図１に示すように、第２噴射ノズル２３ａ、２３ｂも、充填ステーション３４ａ及び予熱ステーション３５ａの下流側で、トップシールステーション３５ｂの上流側に配設される。 In the first injection nozzle 21 and its mode of the inert gas injection device of the embodiment, as shown in FIG. 1, the second injection nozzles 23a and 23b are also on the downstream side of the filling station 34a and the preheating station 35a. It is disposed upstream of the sealing station 35b.

なお、本発明は該実施の形態に限定されるものではなく、本発明の趣旨に基づいて種々変形させることが可能であり、それらを本発明の範囲から排除するものではない。 In addition, this invention is not limited to this embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

この発明は、流動性食品を包装充填する包装容器の製造に適用することができる。 The present invention can be applied to the manufacture of a packaging container for packaging and filling a fluid food.

この発明による不活性ガス噴射装置の一実施例を装備するゲーブトップ紙容器用包装充填機の側面図である。[BRIEF DESCRIPTION OF THE DRAWINGS] It is a side view of the packaging filling machine for gave top paper containers equipped with one Example of the inert gas injection apparatus by this invention. 図１に示す第１噴射ノズルが不活性ガスを噴射する様子・作用機構を示す断面図である。It is sectional drawing which shows a mode and an action mechanism in which the 1st injection nozzle shown in FIG. 1 injects an inert gas. この発明による不活性ガス噴射装置に使用する紙容器の斜視図である。It is a perspective view of the paper container used for the inert gas injection apparatus by this invention. この発明による不活性ガス噴射装置に使用するゲーブトップ紙容器用包装充填機の斜視図であるIt is a perspective view of the packaging filling machine for gave top paper containers used for the inert gas injection device by this invention.

符号の説明Explanation of symbols

２０ ・・・ストッパー板
２１ ・・・第１噴射ノズル
２３ ・・・第２噴射ノズル
３３ ・・・容器 20 ... Stopper plate 21 ... First injection nozzle 23 ... Second injection nozzle 33 ... Container

Claims (2)

ヘッドスペースを残して液体食品が充填され、上部開口が閉鎖されてトップシールされる容器であって、所定個数毎に間欠的に搬送される該容器の閉鎖前の該開口に嵌挿されるストッパー板と、該ストッパー板を貫通し該開口に嵌挿して該容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第１噴射ノズルとを備え、
該ストッパー板と該第１噴射ノズルとが連動して該開口に出入れされる
ことを特徴とするヘッドスペースを有する容器用の不活性ガス噴射装置。 A stopper plate that is filled with liquid food leaving a head space, and the top opening is closed and is top-sealed, and is inserted into the opening before closing the container that is intermittently conveyed every predetermined number And a predetermined number of first injection nozzles that pass through the stopper plate and are inserted into the openings to inject inert gas into the headspace in the container,
An inert gas injection device for a container having a head space, wherein the stopper plate and the first injection nozzle are moved in and out of the opening in conjunction with each other. 閉鎖途中の前記開口の上方から該容器内のヘッドスペース毎へ不活性ガスを噴射する所定個数の第２噴射ノズルを備える、請求項１記載の不活性ガス噴射装置。 The inert gas injection device according to claim 1, further comprising a predetermined number of second injection nozzles for injecting an inert gas from above the opening in the middle of closing to each head space in the container.
JP2007246379A 2007-09-24 2007-09-24 Inert gas-jetting device Pending JP2009073546A (en)

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Application Number Priority Date Filing Date Title
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JP2009073546A true JP2009073546A (en) 2009-04-09

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