JP4912842B2 - Inert gas replacement device - Google Patents
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- JP4912842B2 JP4912842B2 JP2006313320A JP2006313320A JP4912842B2 JP 4912842 B2 JP4912842 B2 JP 4912842B2 JP 2006313320 A JP2006313320 A JP 2006313320A JP 2006313320 A JP2006313320 A JP 2006313320A JP 4912842 B2 JP4912842 B2 JP 4912842B2
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Description
本発明は不活性ガス置換装置に関し、詳しくは所定形状の密封空間を介して容器のヘッドスペース内へ不活性ガスを吹き付ける構造としておくことで、多量の不活性ガスを要することなく容器のヘッドスペース内を空気の混入のない不活性ガスで満たされた品質劣化の生じ難い製品を製造することができる容器ヘッドスペースの不活性ガス置換装置に関する。 The present invention relates to an inert gas replacement device, and more particularly, by having a structure in which an inert gas is blown into a container head space through a sealed space having a predetermined shape, the head space of the container without requiring a large amount of inert gas. The present invention relates to an inert gas replacement device for a container head space that can produce a product that is filled with an inert gas that does not contain air and that is less susceptible to quality deterioration.
従来から、容器内に充填された調味料、フルーツソースなどのソース類、ジャム、米飯など（以下、内容物という。）の酸化や腐敗を防止するために、容器内の空気を窒素や二酸化炭素などの不活性ガスに置換する技術が用いられている。
この不活性ガスに置換する技術として、いくつかの発明が提案されている。
例えば、窒素ガスが充満されたチャンバー内で内容物を容器内に充填し蓋材で密封処理することにより、容器のヘッドスペース内を窒素ガスで充満にすることができる装置（特許文献１）が提案されている。
Conventionally, in order to prevent oxidation and spoilage of seasonings, fruit sauces, jams, cooked rice, etc. (hereinafter referred to as “content”) filled in the container, the air in the container is nitrogen or carbon dioxide. A technique of substituting with an inert gas is used.
Several inventions have been proposed as a technique for replacing the inert gas.
For example, there is an apparatus (Patent Document 1) that can fill a head space of a container with nitrogen gas by filling the container with the contents in a chamber filled with nitrogen gas and sealing with a lid. Proposed.
この特許文献１記載の装置は、充填機などの装置全体を不活性ガスが充満されたチャンバーで囲むために大掛かりな設備を必要とするだけでなく、前記チャンバーを不活性ガスで充満させるために多量な不活性ガスを必要とすることから、経済的に効率よく不活性ガスに置換することが極めて困難であった。また、チャンバー内に容器と共にヘッドスペースの空気が持ち込まれる構造であるので、純粋な不活性ガス雰囲気を維持することが困難である。 The apparatus described in Patent Document 1 not only requires large facilities to surround the entire apparatus such as a filling machine with a chamber filled with an inert gas, but also to fill the chamber with an inert gas. Since a large amount of inert gas is required, it has been extremely difficult to efficiently and efficiently replace the inert gas. In addition, since the air in the head space is brought into the chamber together with the container, it is difficult to maintain a pure inert gas atmosphere.
一方、この現状に勘案して、容器ヘッドスペースの空気を不活性ガスに置換する装置として、例えばガスフローノズルを備えたヘッダで容器周辺を覆った状態としてヘッドスペースの空気を不活性ガスに置換し蓋材で密封する装置（特許文献２）が提案されている。 On the other hand, in consideration of this situation, as an apparatus for replacing the air in the container head space with an inert gas, for example, replacing the air in the head space with an inert gas in a state where the periphery of the container is covered with a header equipped with a gas flow nozzle An apparatus (Patent Document 2) for sealing with a lid material has been proposed.
しかしながら、上記特許文献２に記載されている容器ヘッドスペースの不活性ガス置換装置にあっては、上記特許文献１のように充填機などの装置全体をチャンバーで囲む必要がないため大掛かりな設備を必要としないが、ヘッダ内へ容器と共にヘッドスペースの空気がそのまま持ち込まれる構造としてあるので、ヘッダ内を純粋な不活性ガス雰囲気に維持することが困難となる。 However, in the inert gas replacement device for the container head space described in Patent Document 2, it is not necessary to enclose the entire apparatus such as a filling machine with a chamber as in Patent Document 1, so that a large-scale installation is required. Although not required, since the air in the head space is brought into the header as it is together with the container, it is difficult to maintain a pure inert gas atmosphere in the header.
また、ヘッダ内に不活性ガスを導入する手段として複数のフローノズルを設置しているが、このノズルを機械設備中の狭スペースに複数設置することは大変煩雑となるという問題がある。 In addition, a plurality of flow nozzles are installed as means for introducing an inert gas into the header. However, there is a problem that it is very complicated to install a plurality of nozzles in a narrow space in the mechanical equipment.
さらに、ヘッダと蓋材（フィルム）が連続移送中に擦り接触する構造としてあるので、この蓋材に傷痕が生ずる可能性があり、その蓋材を使用した商品は保管中に品質劣化するという問題がある。 In addition, since the header and the lid (film) are in a structure that rubs and contacts during continuous transfer, there is a possibility that scratches may occur on the lid, and the quality of products using the lid deteriorates during storage. There is.
また、不活性ガスの吹き出し箇所と容器開口部との距離が離れているため、効率よく容器ヘッドスペースの空気を窒素に置換することができない。すなわち、窒素を吹き付ける量が多くなり、結局、不活性ガスの使用量が増加し製造コストが上昇するという問題がある。 In addition, since the distance between the inert gas blowing portion and the container opening is large, the air in the container head space cannot be efficiently replaced with nitrogen. That is, there is a problem that the amount of nitrogen to be blown increases, eventually increasing the amount of inert gas used and increasing the manufacturing cost.
これらの理由により多量な不活性ガスを必要とすることなく品質の劣化がない製品を製造することができる不活性ガス置換装置は未だ提供されていない。 For these reasons, there has not yet been provided an inert gas replacement device that can produce a product that does not require a large amount of inert gas and does not deteriorate in quality.
本発明は上記問題に鑑みてなされたもので、多量な不活性ガスを要することなくヘッドスペース内を空気混入のない不活性ガスで満たしてあるため品質の劣化がない製品を製造することができる容器ヘッドスペースの不活性ガス置換装置を提供することを目的としている。 The present invention has been made in view of the above problems, and can produce a product that does not deteriorate in quality because the inside of the head space is filled with an inert gas without air mixing without requiring a large amount of inert gas. An object of the present invention is to provide an inert gas replacement device for a container headspace.
すなわち、本発明不活性ガス置換装置は、
複数の容器と蓋材の両搬送経路に挟まれた位置に配設してあって内容物を充填して間欠移送される複数の上部開口容器のヘッドスペース内へ不活性ガスを吹き付ける手段と、前記容器の開口部を蓋材で封止する手段とを備えた不活性ガス置換装置において、
前記不活性ガスを吹き付ける手段を側面略直角三角形状の中空柱体に形成し、前記直角三角形状の底辺部に相当する底板を前記容器の開口部に近接配置し、該底板の間欠停止する容器開口部と対向する位置に前記柱体内の不活性ガスの複数の吹出孔を穿設してあり、前記直角三角形状の斜辺部に相当する天板を高さ辺部に相当する側板の上端から前記容器の進行方向へ下り傾斜した傾斜面として形成すると共に前記側板には前記柱体内に不活性ガスを導入する導入口を形成してあり、前記天板は前記底板との交線近傍に前記柱体内の不活性ガスの流出孔を天板に形成して、前記柱体内の不活性ガスの流れを整然とした層流状に作り出してあることを特徴とする
That is, the inert gas replacement device of the present invention is
Means for spraying an inert gas into the head spaces of a plurality of upper opening containers which are disposed at positions sandwiched between both transport paths of the plurality of containers and the cover material and are filled with contents and intermittently transferred; In an inert gas replacement apparatus provided with a means for sealing the opening of the container with a lid material,
A container in which the means for spraying the inert gas is formed in a hollow column having a substantially right triangular shape on the side surface, a bottom plate corresponding to the bottom side of the right triangular shape is disposed close to the opening of the container, and the bottom plate is intermittently stopped. A plurality of blowing holes for the inert gas in the columnar body are formed at a position facing the opening, and a top plate corresponding to the oblique side of the right triangle is formed from an upper end of a side plate corresponding to the height side. Ri Thea forming a inlet for introducing an inert gas into said post body to the side plate so as to form an inclined surface that is inclined downward to the advancing direction of the container, the top plate is the line of intersection near said bottom plate An outflow hole for the inert gas in the columnar body is formed in the top plate, and the flow of the inert gas in the columnar body is created in an orderly laminar flow.
このような構成にすることにより、
前記側板の導入口から不活性ガスが導入されると、略直角三角形状の中空柱体（以下、柱体ともいう。）の密封空間内は多量の純粋な不活性ガスで満たされた雰囲気下に置かれる。次に前記柱体に満たされた不活性ガスは、間欠停止する容器開口部と対向する位置に穿設された吹出孔から容器ヘッドスペース内へ噴出供給される。
With this configuration,
When the inert gas is introduced from the inlet of the side plate, the sealed space of the substantially right triangular hollow column (hereinafter also referred to as column) is an atmosphere filled with a large amount of pure inert gas. Placed in. Next, the inert gas filled in the columnar body is blown out and supplied into the container head space from a blowing hole formed at a position facing the container opening that is intermittently stopped.
この時、前記略直角三角形状の底辺部に相当する底板が間欠停止する前記容器の開口部に近接配置してあるので、効率よく空気を不活性ガスに置換することができる。さらに柱体の天板が下り傾斜してあることにより、柱体内で不活性ガスが常に前記容器の進行方向に流れる層流となると同時に傾斜面に衝突して下方へ向けての流れの転換が生ずるため、底板に穿設された吹出孔の全てから均等に不活性ガスが吹き出される（図７参照）。また、柱体内で不活性ガスが常に前記容器の進行方向に沿って流れるため、外部から柱体内への空気の侵入が防止される。 At this time, since the bottom plate corresponding to the bottom portion of the substantially right triangle shape is arranged close to the opening of the container where the intermittent stop is performed, air can be efficiently replaced with an inert gas. Furthermore, since the top plate of the column body is inclined downward, the inert gas always flows in the traveling direction of the container in the column body, and at the same time, it collides with the inclined surface and the flow is changed downward. Therefore, the inert gas is blown out uniformly from all of the blowing holes drilled in the bottom plate (see FIG. 7). In addition, since the inert gas always flows along the traveling direction of the container in the column, air can be prevented from entering the column from the outside.
その際、前記底板との交線近傍付近に前記柱体内の不活性ガスの流出孔を天板に形成しておくと、前記柱体内の不活性ガスの流れをいっそう整然とした層流状に作り出すことができる。これにより、柱体内の不活性ガスは、底板に穿設された吹出孔の全てから均等に不活性ガスが吹き出され、かつ外部から柱体内への空気の侵入が完全に防止されるため柱体内の不活性ガスは高純度に維持される。
従って、不活性ガスを容器ヘッドスペース内に効率よく置換することができるのでよい。
At that time, if an outflow hole for the inert gas in the column is formed in the top plate near the intersection line with the bottom plate, the flow of the inert gas in the column is created in a more orderly laminar flow. be able to. As a result, the inert gas in the columnar body is uniformly blown out from all of the blowing holes drilled in the bottom plate, and the intrusion of air from the outside into the columnar body is completely prevented. The inert gas is maintained at a high purity.
Therefore, the inert gas may be efficiently replaced in the container head space.
また、前記容器の開口部を蓋材で封止する手段は前記傾斜面の下端直近傍に配設してあるので、ヘッドスペース内に置換された不活性ガスが空気中に拡散されることもなく即座に蓋材で封止される。これより空気の侵入が完全に防止されるため容器ヘッドスペース内に効率よく不活性ガスを置換することができるのでよい。 In addition, since the means for sealing the opening of the container with the lid member is disposed in the vicinity of the lower end of the inclined surface, the inert gas substituted in the head space may be diffused into the air. It is immediately sealed with a lid. Since the intrusion of air is completely prevented, the inert gas can be efficiently replaced in the container head space.
この発明による不活性ガス置換装置は、複数のノズルを使用することなく高純度の不活性ガスを効率よく前記ヘッドスペースに置換することができる。また柱体内へ不活性ガスの流れを整然とした層流状につくる構造としてあるため全ての開口部から均等に不活性ガスを供給することができ、かつ外部から柱体内への空気の侵入を完全に防止することができる。従って、不活性ガスを容器ヘッドスペース内へ経済的に効率よく置換することができる。 The inert gas replacement device according to the present invention can efficiently replace high purity inert gas with the head space without using a plurality of nozzles. In addition, because the structure of the inert gas flow into the column is created in an orderly laminar flow, the inert gas can be supplied uniformly from all openings, and air can be completely prevented from entering the column from the outside. Can be prevented. Therefore, the inert gas can be efficiently and efficiently replaced into the container head space.
さらに前記柱体を容器の進行方向へ下り傾斜する傾斜面を形成した略直角三角形状としてあるので、蓋材などの包材と前記柱体の外表面の角部などが移送中に擦り接触することが生じないために包材を傷つけることがない。従って、品質の劣化がない製品を製造することができる。 Furthermore, since the columnar body has a substantially right-angled triangle shape with an inclined surface that is inclined downward in the traveling direction of the container, the packaging material such as a lid and the corners of the outer surface of the columnar body are in frictional contact during transport. This will not damage the packaging. Therefore, it is possible to manufacture a product that does not have quality degradation.
以下、本発明不活性ガス置換装置を図面に示す実施の形態を参照して説明する。 Hereinafter, the inert gas replacement apparatus of the present invention will be described with reference to the embodiments shown in the drawings.
図１は本発明を適用した包装体製造ラインの一実施例を示す概略側面図、図２は本発明不活性ガス置換装置の一実施例の側面図である。また、図３は図２中の柱体の一実施例を示す斜視図である。さらに図４は図２中の柱体の底板平面図、図５は図２中の柱体の側断面図、図６は図２中の柱体の背面図であり、図７は図２中の柱体内に導入された不活性ガスの流れを示した模式説明図である。 FIG. 1 is a schematic side view showing an embodiment of a package production line to which the present invention is applied, and FIG. 2 is a side view of an embodiment of the inert gas replacement apparatus of the present invention. FIG. 3 is a perspective view showing an embodiment of the column in FIG. 4 is a plan view of the bottom plate of the column in FIG. 2, FIG. 5 is a side sectional view of the column in FIG. 2, FIG. 6 is a rear view of the column in FIG. It is the model explanatory drawing which showed the flow of the inert gas introduce | transduced in the columnar body.
[実施例１]
本実施例において図１に示したように本発明不活性ガス置換装置１００は、包装体製造ライン１の容器７、７、７、・・・と蓋材（フィルム）１６の両搬送経路に挟まれた位置に配設してある。また不活性ガス置換装置１００は、不活性ガスを吹き付ける手段２と容器開口部を蓋材で封止する手段１５とを備えてあり、その不活性ガスを吹き付ける手段の外観形状は側面略直角三角形状の中空柱体として形成してある。この略直角三角形状の中空柱体は、当該直角三角形状の底辺部に相当する底板４、高さ辺部に相当する側板５、及び斜辺部に相当する天板６から形成され、この三角形状の尖端部を容器の搬送方向（矢印Ａ）へ向けて配設される（図１、図２参照）。
尚、前記中空柱体の形状として、前記底板、側板及び天板を有しておれば特に制限されるものではない。また前記柱体３に使用される前記底板４などの材質としてポリカーボネイト樹脂、アクリル樹脂などが挙げられるが、特に制限されるものではない。
[Example 1]
In this embodiment, as shown in FIG. 1, the inert gas replacement device 100 of the present invention is sandwiched between the conveyance paths of the containers 7, 7, 7,. It is arranged at the position. The inert gas replacement apparatus 100 includes means 2 for blowing an inert gas and means 15 for sealing the container opening with a lid. The appearance of the means for blowing the inert gas has a substantially right side triangular shape. It is formed as a hollow columnar body. This substantially right-angled triangular hollow column is formed of a bottom plate 4 corresponding to the bottom side of the right-angled triangle, a side plate 5 corresponding to the height side, and a top plate 6 corresponding to the oblique side. Are arranged with the tip of the container facing toward the container conveyance direction (arrow A) (see FIGS. 1 and 2).
In addition, if it has the said baseplate, a side plate, and a top plate as a shape of the said hollow column body, it will not restrict | limit in particular. Examples of the material of the bottom plate 4 used for the column 3 include polycarbonate resin and acrylic resin, but are not particularly limited.
先ず前記直角三角形状の底辺部に相当する底板４から説明すると、図２、図３、図５に示された前記底板４は前記容器７の開口部７１に近接配置してある。本実施例においては容器７の開口部７１と底板４との離間距離は５ｍｍとしてある。尚、この離間距離としては特に制限されるものではないが、効率よく空気を窒素に置換することができる距離として０．１〜１０ｍｍであるとより好ましい。 First, the bottom plate 4 corresponding to the bottom of the right triangle will be described. The bottom plate 4 shown in FIGS. 2, 3, and 5 is disposed close to the opening 71 of the container 7. In this embodiment, the distance between the opening 71 of the container 7 and the bottom plate 4 is 5 mm. In addition, although it does not restrict | limit especially as this separation distance, It is more preferable in it being 0.1-10 mm as a distance which can replace air with nitrogen efficiently.
また前記底板４は間欠停止する容器開口部７１と対向する位置に前記柱体内の窒素の吹出孔８を穿設してある。ここで、吹出孔８としては、容器開口部７の略中心部に対向する位置にあれば効率よく空気を窒素ガスに置換することができるため好ましい。また、孔の大きさとしては、本実施例は容器開口部７１の面積に対し５％程としてある。尚、この大きさとしては特に制限されるものではないが、効率よく空気を不活性ガスに置換することができる大きさとして０．１〜４０％であるとより好ましい。 Further, the bottom plate 4 is provided with a nitrogen blowing hole 8 in the columnar body at a position facing the container opening 71 which is intermittently stopped. Here, if it is in the position which opposes the substantially center part of the container opening part 7, as the blowing hole 8, since air can be efficiently substituted with nitrogen gas, it is preferable. The size of the hole is about 5% of the area of the container opening 71 in this embodiment. In addition, although it does not restrict | limit especially as this magnitude | size, It is more preferable in it being 0.1 to 40% as a magnitude | size which can replace air with an inert gas efficiently.
また本実施例においては、図２に示された前記直角三角形状の高さ辺部に相当する側板５には図示しない窒素発生装置から送気される窒素ガスを導入する導入口９を形成してある。尚、この際、送気される窒素ガスが層流状に流され、柱体内を常時満たすことができるのであれば、その導入口９の大きさは特に限定されるものではない。 In this embodiment, the side plate 5 corresponding to the right side of the right triangle shown in FIG. 2 is formed with an inlet 9 for introducing nitrogen gas fed from a nitrogen generator (not shown). It is. At this time, the size of the introduction port 9 is not particularly limited as long as the nitrogen gas to be fed is flowed in a laminar flow and can always fill the columnar body.
さらに、図２、図３に示したように前記略直角三角形状の斜辺部に相当する天板６を前記側板５の上端１０から前記容器の進行方向へ下り３０度程の傾斜として形成してある。尚、この下り傾斜の角度αについて、不活性ガスの流れを整然とつくることができれば特に限定するものでないが、不活性ガスの流れを一層強制的につくる角度αとして５〜４５度であると好ましい。
また前記天板６には前記底板４との交線１１近傍に前記柱体内の不活性ガスの流出孔１２、１２を形成してある。ここで、流出孔１２、１２の大きさとして不活性ガスのスムーズな流れをつくることができれば特に制限はない。また流出孔１２の位置として前記交線１１近傍かつ柱体３の側壁１３付近に複数形成してあると、柱体３内のどの位置でも不活性ガスが常に前記容器７、７・・・の進行方向へ流れることとなり好ましい（図７参照）。
Further, as shown in FIGS. 2 and 3, the top plate 6 corresponding to the oblique side of the substantially right triangle is formed with an inclination of about 30 degrees descending from the upper end 10 of the side plate 5 in the traveling direction of the container. is there. The downward inclination angle α is not particularly limited as long as the flow of the inert gas can be made in an orderly manner. However, the angle α that makes the flow of the inert gas more forcibly is preferably 5 to 45 degrees. .
Further, the top plate 6 is formed with outflow holes 12 and 12 for the inert gas in the column in the vicinity of the line 11 of intersection with the bottom plate 4. Here, the size of the outflow holes 12 and 12 is not particularly limited as long as a smooth flow of inert gas can be created. Further, if a plurality of outflow holes 12 are formed in the vicinity of the intersection line 11 and in the vicinity of the side wall 13 of the column 3, the inert gas always flows in the containers 7, 7. This is preferable because it flows in the traveling direction (see FIG. 7).
尚、本実施例においては、前記底板４、側板５及び天板６を含んで形成されている柱体３の密封空間の直下を通過する図１に示された容器本体７、７・・・は、合成樹脂シートをカップ状又はトレイ状などに形成された開口容器としてある。この場合、一般には底浅の容器が一般的ではあるが、これに限らない。また容器は、進行方向と直交する横方向に複数列並べることもできる。内容物としては、例えば、調味料、フルーツソースなどのソース類、ジャム、米飯などとすることができる。さらに、この内容物が充填された容器の進行手段として、本実施例においては開口された状態でコンベヤの適宜の進行手段によって間欠移送されるが、容器の周囲フランジ部のみを載せて運ぶ枠構造のものでもよい。 In this embodiment, the container main bodies 7, 7... Shown in FIG. 1 that pass directly under the sealed space of the column 3 formed including the bottom plate 4, the side plate 5 and the top plate 6. Is an open container in which a synthetic resin sheet is formed in a cup shape or a tray shape. In this case, a shallow container is generally used, but is not limited thereto. In addition, the containers can be arranged in a plurality of rows in the lateral direction orthogonal to the traveling direction. Examples of contents include seasonings, sauces such as fruit sauce, jam, cooked rice, and the like. Further, as a means for advancing the container filled with the contents, in this embodiment, it is intermittently transferred by an appropriate advancing means of the conveyor in an opened state, but a frame structure that carries only the peripheral flange part of the container. It may be.
次に本発明の作用を実施例に基づき説明する。
先ず、図２の前記側板５に形成された導入口９、９・・・から不活性ガスとして窒素ガスを柱体内へ導入し続けると、やがては前記柱体３内は窒素ガスで満たされた状態となる。
その窒素ガスで満たされた状態となった柱体３から窒素ガスが吹出孔８、８・・・から吹き出される域（以下、吹き出し域という。）に、開口した容器７本体が次々に間欠移送され、底板４に形成された吹出孔８から吹出された窒素ガスが間欠移送された上部開口容器ヘッドスペース内に吹き込まれる。
Next, the operation of the present invention will be described based on examples.
First, when nitrogen gas is continuously introduced into the column as an inert gas from the inlets 9, 9... Formed in the side plate 5 in FIG. 2, the column 3 is eventually filled with nitrogen gas. It becomes a state.
The opened container 7 body is intermittently successively in the area where the nitrogen gas is blown out from the blowout holes 8, 8... From the column 3 filled with the nitrogen gas (hereinafter referred to as the blowout area). The nitrogen gas that has been transferred and blown out from the blowout holes 8 formed in the bottom plate 4 is blown into the upper open container head space that has been intermittently transferred.
また、この底板４に形成された吹出孔８、８、８・・・は複数形成されていることから、前記容器７が柱体３の窒素ガス吹き出し域を通過する時間としては、間欠移送の場合の１回分の各停止時間よりも相当長い時間である。従って、容器７本体のヘッドスペースなどに存在していた空気は窒素ガスによって置き換えられる。尚、一般の市場製品は窒素置換率は９０％程が限界とされているが、本実施例の不活性ガス置換装置１００により製造された容器の平均窒素置換率は、食品用微量酸素分析計[飯島電子工業（株）製ＲＯ−１０２]で測定すると、９７％以上であった。 In addition, since a plurality of blowing holes 8, 8, 8... Formed in the bottom plate 4 are formed, the time required for the container 7 to pass through the nitrogen gas blowing area of the column 3 is intermittent transfer. In this case, the time is considerably longer than each stop time for one case. Therefore, the air existing in the head space of the container 7 body is replaced with nitrogen gas. In addition, although the nitrogen substitution rate is limited to about 90% in a general market product, the average nitrogen substitution rate of the container manufactured by the inert gas substitution apparatus 100 of this embodiment is a trace oxygen analyzer for food. It was 97% or more when measured with [RO-102 manufactured by Iijima Electronics Co., Ltd.].
さらに、また天板６が下り傾斜していることにより、柱体３内では窒素ガスが前記容器の進行方向に流れて斜面と衝接して屈曲させられることとなり、底板に穿設された吹出孔８の全てから均等に窒素ガスを吹き出すことができることとなるため、前記容器７が進行方向に順次移送されるに伴って、よりヘッドスペースを高純度の窒素ガスに置換することができる。 Further, since the top plate 6 is inclined downward, nitrogen gas flows in the column body 3 in the traveling direction of the container and is bent in contact with the inclined surface, so that the blowout holes formed in the bottom plate are provided. Since the nitrogen gas can be blown out uniformly from all of 8, the head space can be replaced with high-purity nitrogen gas as the container 7 is sequentially transferred in the traveling direction.
また、本実施例では、前記天板６には前記底板４との前記交線１１近傍かつ柱体の側壁１３付近に複数の流出孔１２を形成してあるので、不活性ガスが整然とした流れとなって柱体３内を満たすことができるため、窒素ガスは柱体３内に常時停留することなく、空気の混入のない純粋な窒素ガスの層流として全ての吹出孔から均等に供給することができる。 In this embodiment, the top plate 6 has a plurality of outflow holes 12 in the vicinity of the intersection line 11 with the bottom plate 4 and in the vicinity of the side wall 13 of the column, so that the inert gas flows in an orderly manner. Therefore, the nitrogen gas does not always stay in the column body 3 and is uniformly supplied from all the blowout holes as a laminar flow of pure nitrogen gas without air mixing. be able to.
また、本実施例の不活性ガス置換装置１００は、前記柱体３の吹き出し域の直ぐ下流側に前記吹き出し域を通過直後の容器７、７・・・にウェブ状の蓋材１６を被せてヒートシールを施し封止する手段が配設されている。前記封止する手段としては特に制限するものではないが、本実施例では容器７の周囲フランジ部と蓋材とをシールヘッドとで挟んで加圧・加熱することにより、容器７本体と蓋材１６とを溶着して封止するようにしてある。 In addition, the inert gas replacement device 100 according to the present embodiment covers the containers 7, 7... Just after passing through the blowing area on the downstream side of the blowing area of the column body 3 with the web-like lid member 16. Means for applying heat seal and sealing is provided. The sealing means is not particularly limited, but in this embodiment, the container 7 body and the lid material are formed by pressing and heating the peripheral flange portion of the container 7 and the lid material between the seal heads. 16 is welded and sealed.
１．製造ライン
２．不活性ガスを吹き付ける手段
３．柱体（中空柱体）
４．底板
５．側板
６．天面
７．容器
７１．開口部（容器開口部）
８．吹出孔
９．導入口
１０．上端
１１．交線
１２．流出口
１３．側壁
１５．容器開口部を蓋材で封止する手段
１６．蓋材（フィルム）
１００．不活性ガス置換装置
α．角度
1. Production line 2. 2. Means for spraying inert gas Column (hollow column)
4). Bottom plate 5. Side plate 6. Top surface 7. Container 71. Opening (container opening)
8). Blow hole 9. Inlet 10. Upper end 11. Intersection line 12. Outlet 13. Side wall 15. 15. means for sealing the container opening with a lid; Lid (film)
100. Inert gas replacement device α. angle
Claims (2)
前記不活性ガスを吹き付ける手段を側面略直角三角形状の中空柱体に形成し、前記直角三角形状の底辺部に相当する底板を前記容器の開口部に近接配置し、該底板の間欠停止する容器開口部と対向する位置に前記柱体内の不活性ガスの複数の吹出孔を穿設してあり、前記直角三角形状の斜辺部に相当する天板を高さ辺部に相当する側板の上端から前記容器の進行方向へ下り傾斜した傾斜面として形成すると共に前記側板には前記柱体内に不活性ガスを導入する導入口を形成してあり、前記天板は前記底板との交線近傍に前記柱体内の不活性ガスの流出孔を天板に形成して、前記柱体内の不活性ガスの流れを整然とした層流状に作り出してあることを特徴とする不活性ガス置換装置。 Means for spraying an inert gas into the head spaces of a plurality of upper opening containers which are disposed at positions sandwiched between both transport paths of the plurality of containers and the cover material and are filled with contents and intermittently transferred; In an inert gas replacement apparatus provided with a means for sealing the opening of the container with a lid material,
A container in which the means for spraying the inert gas is formed in a hollow column having a substantially right triangular shape on the side surface, a bottom plate corresponding to the bottom side of the right triangular shape is disposed close to the opening of the container, and the bottom plate is intermittently stopped. A plurality of blowing holes for the inert gas in the columnar body are formed at a position facing the opening, and a top plate corresponding to the oblique side of the right triangle is formed from an upper end of a side plate corresponding to the height side. Ri Thea forming a inlet for introducing an inert gas into said post body to the side plate so as to form an inclined surface that is inclined downward to the advancing direction of the container, the top plate is the line of intersection near said bottom plate An inert gas replacement apparatus , wherein an outflow hole for an inert gas in the columnar body is formed in a top plate to create a flow of the inert gas in the columnar body in an orderly laminar flow .
2. The inert gas replacement device according to claim 1, wherein the means for sealing the opening of the container with a lid member is disposed in the vicinity of the lower end of the inclined surface.
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| JP2006313320A JP4912842B2 (en) | 2006-11-20 | 2006-11-20 | Inert gas replacement device |
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| JP2011213351A (en) * | 2008-07-10 | 2011-10-27 | Daiichi Sankyo Co Ltd | Gas replacement device in container, and method of the same |
| JP7312003B2 (en) * | 2019-04-12 | 2023-07-20 | 昭和産業株式会社 | Inert gas circulation part, inert gas replacement device, inert gas replacement method, and method for manufacturing container-filled liquid product |
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| DE3130616A1 (en) * | 1981-08-01 | 1983-02-17 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR FUMING AND SEALING PACKAGING CONTAINERS |
| JPS6193023A (en) * | 1984-10-01 | 1986-05-12 | ニツカ株式会社 | Filling packaging method for inert gas |
| JPS6342504A (en) * | 1986-08-09 | 1988-02-23 | Fujitsu Ten Ltd | Antenna system for automobile |
| JPH05199857A (en) * | 1992-01-24 | 1993-08-10 | Mitsubishi Heavy Ind Ltd | Sterilely packaging method for boiled rice |
| JP2006062676A (en) * | 2004-08-25 | 2006-03-09 | Showa Tansan Co Ltd | Gas flushing apparatus for food in cup container |
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