JP4139160B2 - Method and apparatus for cleaning inner surface of container cap after filling liquid - Google Patents

Method and apparatus for cleaning inner surface of container cap after filling liquid Download PDF

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Publication number
JP4139160B2
JP4139160B2 JP2002227357A JP2002227357A JP4139160B2 JP 4139160 B2 JP4139160 B2 JP 4139160B2 JP 2002227357 A JP2002227357 A JP 2002227357A JP 2002227357 A JP2002227357 A JP 2002227357A JP 4139160 B2 JP4139160 B2 JP 4139160B2
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Prior art keywords
cap
cleaning
content liquid
water
pressure air
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JP2004066076A (en
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谷 文 明 古
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Kirin Beverage Corp
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Kirin Beverage Corp
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  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、容器内に内容液を充填してキャッピングしたのち、容器の口部外周面とキャップの内周面との間に残留する内容液を排除するためのキャップ内面洗浄方法およびその装置に関する。
【０００２】
【従来の技術】
各種飲料等の内容液を充填して販売する容器、例えばペットボトルなどにおいては、容器に内溶液を定量充填したのちその口部にキャップを被冠して締着し、市場に供給される。
【０００３】
しかして上記のような容器に内容液を充填するとき、容器の口部外周に内容液が付着することがあり、その状態でキャップを締着すると、口部とキャップとの間に存在する付着内容液が乾燥して固化し、キャップをゆるめることが難しくなったり、内容液によっては空気との接触により腐廃を起こす場合がある。
【０００４】
そのため従来から内容液充填後キャップを締着したあとで容器の口部外周面とキャップの内周面との間を洗浄して、付着内容液を洗い流すようにしている。
【０００５】
その洗浄手段として本件発明者らは、先にキャップ内面洗浄方法および装置を開発し、特願平１０−１７７４５６号（特許第２９４４９９４号）として提供した。
【０００６】
この洗浄手段は、容器口部の外周およびキャップの内周に形成されたネジ山の少なくとも一方に縦方向のベントスリットを１〜複数条形成し、容器のネックサポート部とキャップの下部との間に向けて洗浄水を噴射し、前記ベントスリットを通じて容器口部とキャップとの嵌合部全域に洗浄水を行きわたらせて残存内容液を洗い流すようにしたものである。
【０００７】
【発明が解決しようとする課題】
しかるに上記の洗浄手段では、容器口部とキャップとの間に洗浄水を噴射した場合、ベントスリットを通じて洗浄水がネジ山間に流入するので嵌合部全域に洗浄水を行きわたらせることはできるが、狭い隙間に洗浄水を流入させるので洗浄水の入口部分、すなわちキャップの下部域の内面領域は十分に洗浄が行われても、ベントスリットからネジ山の嵌合部領域では洗浄水が遅滞して付着残留液を洗い流すには至らず、短時間で十分な洗浄効果を挙げることが難しかった。
【０００８】
本発明は、上記洗浄水による洗い流しに加え、その後に高圧エアを吹き込むことにより先行の洗浄水を強制的に押し流し、これにより残留液共々押し流すようにして、短時間での洗浄効果を倍加させることができるキャップ内面洗浄方法およびその装置を提供することを課題とする。
【０００９】
【課題を解決するための手段】
上記課題を解決する手段として本発明は、容器口部の外周部に形成されたネジ山部またはこれに螺合するキャップの内周部に形成されたネジ山部の少なくとも一方の縦方向複数箇所にベントスリットを設け、容器内に内容液を充填して前記キャップを被冠締着したのち容器口部とキャップとの間に圧力洗浄水を噴射する工程と、前記洗浄水噴射後の同箇所に向け高圧エアを噴射する工程とを有し、前記ベントスリットを通じて洗浄水を容器口部とキャップとの嵌合面間に流入させたのち高圧エアにより当該洗浄水を強制的に該嵌合面全域に行きわたらせて押し流すことにより容器口部とキャップとの間に残留する付着内容液を洗い落すことを特徴とする。
【００１０】
前記洗浄水の水圧は０．５〜１．０ｋｇ／ｃｍ２、水量は１．２〜２．０ｌ／ｍｉｎとし、前記高圧エアの圧力は０．２〜０．４ＭＰａ、噴出量は２０００〜３０００ｌ／ｍｉｎとすることが好ましい。
【００１１】
また洗浄装置として、容器口部の外周部に形成されたネジ山部またはこれに螺合するキャップの内周部に形成されたネジ山部の少なくとも一方の縦方向複数箇所にベントスリットを設け、容器内に内容液を充填して前記キャップを被冠締着した内容液充填後の容器を次工程へ搬送する搬送経路の左右両側部に、前記容器口部とキャップとの間に圧力洗浄水を噴射する洗浄水噴射ノズルを所要の間隔をおいて複数基配設し、この洗浄水噴射ノズルの下流側の左右両側部に、前記容器口部とキャップとの間に高圧エアを噴射する高圧エアノズルを所要の間隔をおいて複数基配設し、前記ベントスリットを通じて洗浄水を容器口部とキャップとの嵌合面間に流入させたのち高圧エアにより当該洗浄水を強制的に該嵌合面全域に行きわたらせて押し流すことにより容器口部とキャップとの間に残留する付着内容液を洗い落すようにしたことを特徴とする。
【００１２】
この場合、前記キャップの内周部上端位置に該キャップの内外面に連通する通孔を設け、洗浄済みの洗浄水を前記通孔を通じて外部に排出するようにする構造、あるいは前記キャップの下端近くの位置に該キャップの内外面に連通するスリットを設け、前記洗浄水および高圧エアを前記スリットを通じて容器口部とキャップとの間に流入させるようにする構造を採用することができる。
【００１３】
【発明の実施の形態】
以下、本発明を図面に示す実施の形態を参照して説明する。
【００１４】
図１は本発明が対象とする容器の一例としてのペットボトル１を示し、図２はその口部の半部拡大斜視図を示すもので、このペットボトル１の口部１ａの外周にはネジ山２（雄ネジ）が形成されており、これに被冠されるキャップ３（図６示）の内周面のネジ山４（雌ネジ）が螺合締着されて密封されるようになっている。
【００１５】
前記口部１ａまたはキャップ３には、そのネジ山２，４の双方または一方を横断するようにガス抜き用のベントスリット５が縦方向複数箇所に形成されている。
【００１６】
前記ペットボトル１の口部１ａの基部には鍔状に突出するネツクサポート部６が形成されており、前記口部１ａのネジ山２にキャップ３のネジ山４を螺合して締着したときキャップ３の下端とネックサポート部６の上面との間に間隙７が形成されるようになっている。
【００１７】
図３〜図５はキャップ３の内面洗浄装置の一実施形態を示すもので、ペットボトル１内に内容液が充填されてその口部１ａにキャップ３が被冠締着されたペットボトル１を直立姿勢で搬送して次工程へ移送する搬送経路８（コンベア）の途中部がトンネル状のカバー９で覆われ、このカバー９内において前記搬送経路８上を直立姿勢で搬送されるペットボトル１の前記間隙７に対応する位置の両側部に洗浄水噴射ノズル１０，１０…が、その下流側の両側部に高圧エアノズル１１，１１…が搬送方向に複数個ずつ列設されている。
【００１８】
図３に示した実施形態では、洗浄水噴射ノズル１０，１０…とその下流側に配置される高圧エアノズル１１，１１…との配置を直列に２組とした場合を示しているが、対象容器に応じ１組または２組以上設置することができる。
【００１９】
上記洗浄水噴射ノズル１０，１０…へは、図５の左半部に示すように給水管１２から立ち上がる枝管１３を通じて洗浄水が供給され、高圧エアノズル１１，１１…へは、図５の右半部に示すように送気管１４から立ち上がる枝管１５を通じて高圧エアが供給される。
【００２０】
上記洗浄水噴射ノズル１０から噴射する洗浄水の水圧は０．５〜１．０ｋｇ／ｃｍ２、水量は１．２〜２．０ｌ／ｍｉｎ程度とされ、高圧エアノズル１１からの高圧エアの圧力は０．２〜０．４ＭＰａ、噴出量は２０００〜３０００ｌ／ｍｉｎ程度とされる。
【００２１】
次にキャップ内面の洗浄作用について説明する。
【００２２】
内容液が充填されキャップ３が被冠締着されたペットボトル１は、搬送経路８上を１列状態で搬送され、カバー９内に進入する。
【００２３】
カバー９内において、まず左右の洗浄水噴射ノズル１０，１０からペットボトル１のネックサポート部６とキャップ３の下端との間の隙間７に向けて洗浄水が噴射される。この隙間７から入った洗浄水は、図６（Ａ）に示すようにベントスリット５を通って最上位のネジ山２，４の上部に至り、ペットボトル１の口部１ａの外周面とキャップ３の内面との間をネジ山２，４を伝わって略全域に流れ込む。
【００２４】
こうして洗浄水噴射ノズル１０の配列領域を通過すると、高圧エアノズル１１から噴出する高圧エアが図６（Ｂ）に示すように前記洗浄液と同じくペットボトル１のネックサポート部６とキャップ３下端との間隙７から口部１ａの外周面とキャップ３の内周面との間に吹き込まれ、先に流入している洗浄水を押し流すようにして前記間隙７から外部に排出される。
【００２５】
したがってペットボトル１の口部１ａのネジ山２を含む外周面とキャップ３のネジ山４を含む内周面との間の略全域に洗浄水が行きわたることと、洗浄水の後から吹き込まれる高圧エアにより洗浄水が強制的に押し流されることにより、ペットボトル１の口部１ａとキャップ３との嵌合部間に残存する内容液が押し流されて確実に排除される。
【００２６】
図７はキャップ３の変形例を示すもので、キャップ３の天板３ａ近くの周面に複数の横長状の通孔１６，１６…が形成され、前述のようにして噴射される洗浄水および高圧エアがネジ山２，４にそって押し流されたのちこれら通孔１６，１６…から外部に排出されるようになされている。
【００２７】
これによれば、キャップ３に通孔１６，１６…を設ける必要はあるが、洗浄に使用された洗浄水が元に戻らないので洗浄効率を高め得る利点がある。
【００２８】
図８はキャップ３のさらに他の変形例を示すもので、キャップ３の下端に開栓時にキャップ３を切断可能とするためのスリット１７，１７…が形成された形態の場合であって、この形態のキャップ３においては上記スリット１７を通じて洗浄水および高圧エアを圧入させるようにすることができる。このような形態とする場合も本発明の適用対象となる。
【００２９】
【発明の効果】
以上説明したように本発明によれば、容器口部とキャップとの間に洗浄水を噴射したのち高圧エアを噴射するので、容器口部とキャップとの間に入った洗浄水が高圧エアにより強制的に押し流され、これによりキャップの内面に付着残留する内容液を確実に排除することができ、洗浄水を有効に使用して効率のよい洗浄を行うことができる。
【図面の簡単な説明】
【図１】本発明が対象とする容器の一例としてのペットボトルを示す正面図。
【図２】同、口部の半部拡大斜視図。
【図３】洗浄水および高圧エアの噴射ノズルの配置関係を示す平面視の説明図。
【図４】図３のＡ−Ａ相当の説明図。
【図５】洗浄装置の具体例を示し、図３のＡ−Ａ相当の断面図。
【図６】（Ａ）は洗浄水噴射時の洗浄水の流れ、（Ｂ）は高圧エア噴射時の高圧エアの流れを示す説明図。
【図７】キャップの変形例を示す半部を断面とした正面図。
【図８】同、他の変形例を示す図７相当図。
【符号の説明】
１ ペットボトル（容器）
１ａ 口部
２，４ ネジ山
３ キャップ
５ ベントスリット
６ ネックサポート部
７ 間隙
８ 搬送経路
９ カバー
１０ 洗浄水噴射ノズル
１１ 高圧エアノズル
１２ 給水管
１３ 枝管
１４ 送気管
１５ 枝管
１６ 通孔
１７ スリット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cap inner surface cleaning method and apparatus for removing the content liquid remaining between the outer peripheral surface of the mouth of the container and the inner peripheral surface of the cap after filling the container with the content liquid and capping. .
[0002]
[Prior art]
In containers that are filled with content liquids such as various beverages, such as plastic bottles, the containers are filled with a fixed amount of the internal solution, and then the mouth is covered with a cap and supplied to the market.
[0003]
Therefore, when the container is filled with the content liquid, the content liquid may adhere to the outer periphery of the mouth of the container. When the cap is tightened in this state, the adhesion existing between the mouth and the cap is present. The content liquid may dry out and solidify, making it difficult to loosen the cap, or depending on the content liquid, it may cause decay due to contact with air.
[0004]
Therefore, conventionally, after the content liquid is filled, the cap is fastened, and then the space between the outer peripheral surface of the mouth of the container and the inner peripheral surface of the cap is washed to wash away the attached content liquid.
[0005]
As the cleaning means, the present inventors previously developed a cap inner surface cleaning method and apparatus and provided it as Japanese Patent Application No. 10-177456 (Japanese Patent No. 2944994).
[0006]
This cleaning means forms one or more vertical vent slits on at least one of the threads formed on the outer periphery of the container mouth and the inner periphery of the cap, and between the neck support part of the container and the lower part of the cap. In this case, the cleaning water is sprayed toward the container, and the cleaning water is distributed over the entire fitting portion between the container mouth and the cap through the vent slit so that the remaining content liquid is washed away.
[0007]
[Problems to be solved by the invention]
However, in the above cleaning means, when the cleaning water is sprayed between the container mouth and the cap, the cleaning water flows through the vent slit between the threads, so that the cleaning water can be spread over the entire fitting portion. Since the cleaning water flows into the narrow gap, even if the cleaning water inlet portion, that is, the inner surface area of the lower area of the cap is sufficiently cleaned, the cleaning water is delayed from the vent slit to the threaded fitting area. As a result, it was difficult to wash away the remaining adhesive liquid, and it was difficult to achieve a sufficient cleaning effect in a short time.
[0008]
In the present invention, in addition to the washing with the washing water, the preceding washing water is forcibly flushed by blowing high-pressure air thereafter, thereby causing the residual liquid to be flushed together, thereby doubling the washing effect in a short time. It is an object of the present invention to provide a cap inner surface cleaning method and an apparatus for the same.
[0009]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the present invention provides a plurality of longitudinal portions of at least one of a thread portion formed on the outer peripheral portion of the container mouth portion or an inner peripheral portion of a cap screwed to the thread portion. And a step of injecting pressure washing water between the container mouth and the cap after filling the container with the content liquid and fastening the cap, and the same location after the washing water injection Injecting high-pressure air toward the fitting surface, forcing the washing water into the fitting surface between the container mouth and the cap through the vent slit, and then forcing the washing water with the high-pressure air. The adhering content liquid remaining between the container mouth portion and the cap is washed away by being spread over the entire area and washed away.
[0010]
The water pressure of the washing water is 0.5 to 1.0 kg / cm 2 , the amount of water is 1.2 to 2.0 l / min, the pressure of the high pressure air is 0.2 to 0.4 MPa, and the ejection amount is 2000 to 3000 l. / Min is preferable.
[0011]
Further, as a cleaning device, a vent slit is provided at a plurality of locations in the longitudinal direction of at least one of a thread portion formed on an outer peripheral portion of the container mouth portion or an inner peripheral portion of a cap screwed to the thread portion, Pressure washing water between the container mouth and the cap on both the left and right sides of the transport path for transporting the container after filling the contents liquid filled with the contents liquid into the container and tightening the cap to the next process. A plurality of cleaning water injection nozzles for injecting water are disposed at a required interval, and high pressure air is injected to the left and right sides on the downstream side of the cleaning water injection nozzle between the container mouth and the cap. A plurality of air nozzles are arranged at a required interval, and the cleaning water is forced to be fitted by high-pressure air after flowing the cleaning water through the vent slit between the fitting surfaces of the container mouth and the cap. Push across the entire surface Characterized in that so as to drop wash attachment content liquid remaining between the container mouth portion and the cap by.
[0012]
In this case, a structure is provided in which a through hole communicating with the inner and outer surfaces of the cap is provided at the upper end position of the inner peripheral portion of the cap, and the washed cleaning water is discharged to the outside through the through hole, or near the lower end of the cap It is possible to adopt a structure in which a slit communicating with the inner and outer surfaces of the cap is provided at the position so that the washing water and the high-pressure air flow between the container mouth and the cap through the slit.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to embodiments shown in the drawings.
[0014]
FIG. 1 shows a plastic bottle 1 as an example of a container targeted by the present invention, and FIG. 2 shows an enlarged perspective view of a half part of the mouth part. A thread 2 (male thread) is formed, and a thread 4 (female thread) on the inner peripheral surface of the cap 3 (shown in FIG. 6) to be crowned is screwed and fastened to be sealed. ing.
[0015]
In the mouth 1a or the cap 3, vent slits 5 for venting gas are formed at a plurality of positions in the vertical direction so as to cross both or one of the threads 2 and 4.
[0016]
A neck support portion 6 protruding like a bowl is formed at the base of the mouth portion 1a of the PET bottle 1, and the screw thread 4 of the cap 3 is screwed into the screw thread 2 of the mouth portion 1a and fastened. In some cases, a gap 7 is formed between the lower end of the cap 3 and the upper surface of the neck support portion 6.
[0017]
3 to 5 show an embodiment of an inner surface cleaning device for a cap 3, and the PET bottle 1 is filled with the content liquid and the cap 3 is fastened to the mouth portion 1a with the cap 3 fastened to the crown. A midway portion of the transport path 8 (conveyor) transported in the upright posture and transferred to the next process is covered with a tunnel-shaped cover 9, and the PET bottle 1 transported in the upright position on the transport path 8 in the cover 9. .. Are arranged in a row in the conveying direction, and a plurality of high-pressure air nozzles 11, 11...
[0018]
In the embodiment shown in FIG. 3, the case where the cleaning water injection nozzles 10, 10... And the high-pressure air nozzles 11, 11. One set or two or more sets can be installed depending on the situation.
[0019]
As shown in the left half of FIG. 5, washing water is supplied to the washing water injection nozzles 10, 10,... Through a branch pipe 13 rising from the water supply pipe 12, and the high pressure air nozzles 11, 11,. As shown in the half, high-pressure air is supplied through the branch pipe 15 rising from the air supply pipe 14.
[0020]
The water pressure of the washing water sprayed from the washing water jet nozzle 10 is 0.5 to 1.0 kg / cm 2 , the amount of water is about 1.2 to 2.0 l / min, and the pressure of the high pressure air from the high pressure air nozzle 11 is 0.2-0.4MPa and the amount of ejection shall be about 2000-3000 l / min.
[0021]
Next, the action of cleaning the inner surface of the cap will be described.
[0022]
The plastic bottle 1 filled with the content liquid and the cap 3 being fastened with the crown 3 is conveyed in a row on the conveyance path 8 and enters the cover 9.
[0023]
In the cover 9, first, the cleaning water is sprayed from the left and right cleaning water spray nozzles 10, 10 toward the gap 7 between the neck support portion 6 of the PET bottle 1 and the lower end of the cap 3. As shown in FIG. 6 (A), the cleaning water entering from the gap 7 passes through the vent slit 5 and reaches the upper part of the uppermost threads 2 and 4, and the outer peripheral surface of the mouth 1 a of the PET bottle 1 and the cap 3 and the inner surface of 3 through the threads 2 and 4 and flow into almost the entire area.
[0024]
When passing through the arrangement region of the washing water jet nozzle 10 in this way, the high pressure air ejected from the high pressure air nozzle 11 is the gap between the neck support portion 6 of the PET bottle 1 and the lower end of the cap 3 as shown in FIG. 6B. 7 is blown between the outer peripheral surface of the mouth portion 1a and the inner peripheral surface of the cap 3, and is discharged to the outside through the gap 7 so as to wash away the wash water that has flowed in first.
[0025]
Accordingly, the washing water reaches almost the entire area between the outer peripheral surface including the screw thread 2 of the mouth portion 1a of the plastic bottle 1 and the inner peripheral surface including the screw thread 4 of the cap 3, and the cleaning water is blown after the cleaning water. When the washing water is forcibly washed away by the high-pressure air, the remaining liquid remaining between the fitting portion between the mouth portion 1a of the plastic bottle 1 and the cap 3 is pushed away and reliably removed.
[0026]
FIG. 7 shows a modified example of the cap 3. A plurality of horizontally long through holes 16, 16... Are formed on the peripheral surface of the cap 3 near the top plate 3 a, and the cleaning water sprayed as described above and After the high-pressure air is swept along the threads 2 and 4, the high-pressure air is discharged to the outside from these through holes 16, 16.
[0027]
According to this, although it is necessary to provide the through-holes 16, 16 ... in the cap 3, since the washing water used for washing | cleaning does not return to the original, there exists an advantage which can improve washing | cleaning efficiency.
[0028]
FIG. 8 shows still another modified example of the cap 3, which is a case in which slits 17, 17... Are formed at the lower end of the cap 3 so that the cap 3 can be cut when the cap is opened. In the cap 3 of the form, washing water and high-pressure air can be press-fitted through the slit 17. Such a configuration is also an application target of the present invention.
[0029]
【The invention's effect】
As described above, according to the present invention, since the cleaning water is injected between the container mouth portion and the cap and then the high-pressure air is injected, the cleaning water entering between the container mouth portion and the cap is caused by the high-pressure air. The content liquid that is forced to flow away and adheres to the inner surface of the cap can be reliably removed, and the cleaning water can be effectively used to perform efficient cleaning.
[Brief description of the drawings]
FIG. 1 is a front view showing a plastic bottle as an example of a container targeted by the present invention.
FIG. 2 is an enlarged perspective view of a half portion of the mouth.
FIG. 3 is an explanatory diagram in a plan view showing an arrangement relationship between the flush water and high pressure air injection nozzles.
4 is an explanatory view corresponding to AA in FIG. 3;
5 is a cross-sectional view corresponding to AA in FIG. 3, showing a specific example of the cleaning apparatus.
FIGS. 6A and 6B are explanatory views showing the flow of cleaning water when jetting cleaning water, and FIG. 6B is an explanatory diagram showing the flow of high pressure air when jetting high-pressure air.
FIG. 7 is a front view with a cross section of a half portion showing a modified example of the cap.
FIG. 8 is a view corresponding to FIG. 7, showing another modification.
[Explanation of symbols]
1 PET bottle (container)
1a Mouth part 2, 4 Thread 3 Cap 5 Vent slit 6 Neck support part 7 Gap 8 Transport path 9 Cover 10 Washing water injection nozzle 11 High pressure air nozzle 12 Water supply pipe 13 Branch pipe 14 Air supply pipe 15 Branch pipe 16 Through hole 17 Slit

Claims (4)

ペットボトル口部の外周部に形成されたネジ山部またはこれに螺合するキャップの内周部に形成されたネジ山部の少なくとも一方の縦方向複数箇所にベントスリットを設け、ペットボトル内に内容液を充填して前記キャップを被冠締着したのちペットボトルのネックサポート部と前記キャップの下端との間の隙間に向けて圧力洗浄水を噴射する工程と、
前記洗浄水噴射後の同箇所に向け圧力が０．２〜０．４ＭＰａ、噴出量が２０００〜３０００ｌ／ｍｉｎの高圧エアを噴射する工程とを有し、
前記ベントスリットを通じて洗浄水をペットボトル口部とキャップとの嵌合面間に流入させたのち高圧エアにより当該洗浄水を強制的に該嵌合面全域に行きわたらせて押し流すことによりペットボトル口部とキャップとの間に残留する付着内容液を洗い落すことを特徴とする内容液充填後のペットボトルキャップ内面洗浄方法。The vent slit is provided on at least one longitudinal plurality of locations of threaded portion formed on the inner peripheral portion of the cap to be screwed crests or to screw formed on an outer peripheral portion of the PET bottle mouth, in a plastic bottle A step of injecting pressure washing water toward a gap between a neck support portion of a plastic bottle and a lower end of the cap after filling the content liquid and fastening the cap against the crown;
A step of injecting high-pressure air having a pressure of 0.2 to 0.4 MPa and an ejection amount of 2000 to 3000 l / min toward the same location after the washing water injection,
The PET bottle mouth wash water through the vent slit and forced PET bottle mouth by sweep away by span go fitting surface throughout the cleaning water by the high pressure air mixture was allowed to flow between the mating surfaces of the cap A method for cleaning the inner surface of a plastic bottle cap after filling the content liquid, wherein the content liquid remaining between the cap and the cap is washed off. 前記洗浄水の水圧が０．５〜１．０ｋｇ／ｃｍ２、水量が１．２〜２．０ｌ／ｍｉｎとされている請求項１記載の内容液充填後のペットボトルキャップ内面洗浄方法。The water pressure of the washing water is 0.5~1.0kg / cm 2, plastic bottle caps inner surface cleaning method after the liquid content filling of claim 1 wherein the amount of water is the 1.2~2.0l / min. ペットボトル口部の外周部に形成されたネジ山部またはこれに螺合するキャップの内周部に形成されたネジ山部の少なくとも一方の縦方向複数箇所にベントスリットを設け、ペットボトル内に内容液を充填して前記キャップを被冠締着した内容液充填後のペットボトルを次工程へ搬送する搬送経路の左右両側部に、ペットボトルのネックサポート部と前記キャップの下端との間の隙間に向けて圧力洗浄水を噴射する洗浄水噴射ノズルを所要の間隔をおいて複数基配設し、この洗浄水噴射ノズルの下流側の左右両側部に、ペットボトルのネックサポート部と前記キャップの下端との間の隙間に向けて圧力が０．２〜０．４ＭＰａ、噴出量が２０００〜３０００ｌ／ｍｉｎの高圧エアを噴射する高圧エアノズルを所要の間隔をおいて複数基配設し、前記ベントスリットを通じて洗浄水をペットボトル口部とキャップとの嵌合面間に流入させたのち高圧エアにより当該洗浄水を強制的に該嵌合面全域に行きわたらせて押し流すことによりペットボトル口部とキャップとの間に残留する付着内容液を洗い落すようにしたことを特徴とする内容液充填後のキャップ内面洗浄装置。The vent slit is provided on at least one longitudinal plurality of locations of threaded portion formed on the inner peripheral portion of the cap to be screwed crests or to screw formed on an outer peripheral portion of the PET bottle mouth, in a plastic bottle Filled with the content liquid and fastened with the cap, the plastic bottle after filling the content liquid is transported to the next process between the left and right sides of the transport path between the neck support part of the plastic bottle and the lower end of the cap. A plurality of cleaning water injection nozzles for injecting pressure cleaning water toward the gap are arranged at a required interval, and the neck support portion of the PET bottle and the cap are provided on both the left and right sides of the downstream side of the cleaning water injection nozzle. pressure toward the gap 0.2~0.4MPa between the lower end of the ejection amount is more groups arranged at a required interval the high pressure air nozzle for injecting high pressure air 2000~3000l / min The PET bottle mouth wash water through the vent slit and forced PET bottle mouth by sweep away by span go fitting surface throughout the cleaning water by the high pressure air mixture was allowed to flow between the mating surfaces of the cap A device for cleaning an inner surface of a cap after filling the content liquid, wherein the content liquid remaining between the cap and the cap is washed away. 前記キャップの内周部上端位置に該キャップの内外面に連通する通孔を設け、洗浄済みの洗浄水を前記通孔を通じて外部に排出するようになされている請求項３記載の内容液充填後のペットボトルキャップ内面洗浄装置。4. After filling the content liquid according to claim 3, wherein a through hole communicating with the inner and outer surfaces of the cap is provided at an upper end position of the inner peripheral portion of the cap, and the washed cleaning water is discharged to the outside through the through hole. PET bottle cap inner surface cleaning device.
JP2002227357A 2002-08-05 2002-08-05 Method and apparatus for cleaning inner surface of container cap after filling liquid Expired - Fee Related JP4139160B2 (en)

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JP4598512B2 (en) * 2004-12-27 2010-12-15 日本クラウンコルク株式会社 Cleaning system for containers with composite container lid
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JP6457224B2 (en) * 2014-09-24 2019-01-23 アサヒビール株式会社 Canned water drop removal device
JP6811046B2 (en) * 2016-07-19 2021-01-13 キリンホールディングス株式会社 Manufacturing method of packaged beverage
JP6916540B2 (en) * 2019-04-23 2021-08-11 キリンテクノシステム株式会社 Water drop removal device and water drop removal method
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