JP3590667B2 - Manufacturing method of aseptic container - Google Patents

Manufacturing method of aseptic container Download PDF

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Publication number
JP3590667B2
JP3590667B2 JP08335795A JP8335795A JP3590667B2 JP 3590667 B2 JP3590667 B2 JP 3590667B2 JP 08335795 A JP08335795 A JP 08335795A JP 8335795 A JP8335795 A JP 8335795A JP 3590667 B2 JP3590667 B2 JP 3590667B2
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Japan
Prior art keywords
blow
insert member
container
mouth
cut
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JP08335795A
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JPH08244101A (en
Inventor
稔 市田
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Naigai Kasei Co Ltd
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Naigai Kasei Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2008—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2021—Inserts characterised by the material or type
    • B29C2049/2026—Neck portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2021—Inserts characterised by the material or type
    • B29C2049/2047—Tubular inserts, e.g. tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2073—Means for feeding the inserts into the mould, preform or parison, e.g. grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding

Description

【０００１】
【産業上の利用分野】
この発明は合成樹脂製の無菌容器、特に無菌輸液容器に好適である無菌容器の製造方法に関する。
【０００２】
【従来の技術】
従来の輸液容器は、輸液を入れてからキャップで密封することから、輸液を注入する前に、容器はあらかじめ水洗し、乾燥し、熱をかけて無菌処理を施す必要があった。
【０００３】
【発明が解決しようとする課題】
しかし輸液を注入する前に容器を水洗し、乾燥し、熱をかけて無菌処理することは作業上煩雑であるほか、輸液の注入装置のほかに、別途大型の水洗装置をわざわざ設置する必要があり、また水洗の処理時間もかかる問題があった。
この発明の目的は、水洗装置を設置する必要がなく、輸液注入前の無菌処理を不要とし、しかも簡単に製造することができる無菌容器の製造方法を提供する点にある。
【０００４】
【課題を解決するための手段】
上記目的を達成するため、この発明は、ブローピンの挿入口を有する金型に、パリソンを押し出し、該パリソンを挟み込んで型閉めしてプリブロー成形体を成形し、しかる後上記金型のブローピンの挿入口によって形作られたプリブロー成形体の開口部内に、口元部と当該口元部にカット部を介して設けた吹き込み部で構成されるインサート部材を先端に装着した当該ブローピンを打ち込み、上記インサート部材の吹き込み部に空気を吹き込んで膨らませ、上記ブローピンが後退した後は、上記吹き込み部を封止した無菌容器の製造方法を採用した。
【０００５】
インサート部材の吹き込み部は、ブローピンからの空気をプリブロー成形体の内部に吹き込むと共に、前記の通り、封止するための部分であるため、吹き込やすく、かつ封止しやすい構造であることが望ましく、この点で、吹き込みパイプが外部に露出している吹き込み部が好適である。そして、この吹き込みパイプにブローピンから空気が注入されるものである。
【０００６】
この吹き込み部の封止手段は、種々採用できるが、特にヒートシールが好適である。例えばブローピンが後退した後に、ヒートシール用ピンが下降し、吹き込み部をシール密封する様にすることが適切である。
【０００７】
一方、インサート部材の口元部は、既述の通り、薄肉のカット部を介して吹き込み部が形成されている。これは、上記製造方法で製造された無菌容器を使用する場合、まず、前記封止状態にある吹き込み部を薄肉のカット部でカットして取り外し、容器内に内容物を充填した後、口元部にキャップを取り付ける使用方法を採用するためである。
【０００８】
この点で、吹き込み部は薄肉のカット部を介して口元部の上部に形成すれば容易に取り外すことができて好ましいが、格別限定されるものではない。口元部の側部に薄肉のカット部を介して吹き込み部に連結する構造でも差支えない。
【０００９】
この無菌容器は、インサート部材の口元部には、既述の通り、薄肉のカット部を介して吹き込み部が形成されており、封止状態にしたこの吹き込み部を薄肉のカット部でカットして取り外し、容器内に内容物を充填した後、口元部にキャップを取り付けて使用するため、口元部はキャップを取り付けやすい構造とすることが望ましい。例えば、口元部にはキャップ融着用のフランジ部を形成し、薄肉のカット部をこのフランジ部に形成するようにすれば、薄肉のカット部を切り取った後、上記フランジ部にキャップのフランジ部を融着することができる。また、口元部の側壁にキャップ螺合用の外ネジ部又は内ねじ部を形成することにより、キャップを螺合することができる。また口元部の内部を内栓の嵌合部とし、この嵌合部に内栓を嵌着してもよい。
【００１０】
【作用】
この発明は、ブローピンの挿入口を有する金型に、パリソンを押し出し、該パリソンを挟み込んで型閉めしてプリブロー成形体を成形し、しかる後上記金型のブローピンの挿入口によって形作られたプリブロー成形体の開口部内に、口元部と当該口元部にカット部を介して設けた吹き込み部で構成されるインサート部材を先端に装着した当該ブローピンを打ち込み、上記インサート部材の吹き込み部に空気を吹き込んで膨らませ、上記ブローピンが後退した後は、上記吹き込み部を封止した製造方法であるので、従来の様に容器は開封されておらず封止されているので、輸液を注入する際は、上記インサート部材のカット部をカッティングして吹き込み部を取り外し、容器と一体化したインサート部材の口元部から輸液を注入し、キャップをこの口元部に取り付ける方法をとることができ、因って輸液注入前の無菌処理を不要とすることができる。
【００１１】
また輸液だけでなく、飲料その他の液体についても同様に、無菌処理を不要とすることができる。
【００１２】
従って、従来の様に、開栓状態の容器を水洗し、乾燥し、熱をかけて無菌処理する必要がなくなり、水洗装置を連続工程として組み込む必要がなくなる。
【００１３】
【実施例】
図１、図２及び図５〜図８は本発明の無菌容器の製造方法に係る各工程を示す斜視図である。図１はパリソンの押出し工程を示す斜視図、図２は型閉め工程を示す斜視図、図５は吹き込み工程を示す斜視図、図６はブローピンの後退工程を示す斜視図、図７は吹き込み部のシール工程を示す斜視図、図８は製品の取り出し工程を示す斜視図である。なお、図３はインサート部材を示す斜視図、図４は同断面図である。
【００１４】
まず、図１に示す様に、型開き状態にある金型１にパリソン２を押し出し、該パリソン２を挟み込んでプリブローしながら型閉めし、図２に示す様に、プリブロー成形体３を成形する。次に、図２及び図５に示す様に、金型１の上部に形成されたブローピンの挿入口４によって形作られたプリブロー成形体の開口部５内に、先端にインサート部材６を装着した当該ブローピン７を打ち込む。なおこり実施例に係るインサート部材６は、図３及び図４に示す様に、インサート部材６の下部を構成し、プリブロー成形体３の開口部５内に一体化される口元部８と、インサート部材６の上部を構成する空気の吹き込み部９とからなり、また口元部８と吹き込み部９との間には薄肉のカット部１０が形成されている。Ｆは口元部８の中間部から外側に突出したキャップ融着用のフランジ部である。１１は吹き込み部９に設けられた吹き込みパイプで、吹き込み孔１２が形成されている。従って、この上記インサート部材６の吹き込み部９に形成された吹き込み孔１２から空気を吹き込んでプリブロー成形体３を膨らませる。
【００１５】
ブロー成形完了後、図６に示す様に、ブローピン７は上昇して後退し、インサート部材６はブロー成形体１３に成形一体化する。次に、金型１の上面から飛び出たインサート部材６の吹き込み部９の吹き込みパイプ１１を、金型１の上面に設置されて上下動するヒートシール装置１４によってヒートシールする。
【００１６】
ヒートシール後、図８に示す様に、製品となった無菌容器１４を取り出す。
図９は金型１から取り出された無菌容器１４を示す正面図であり、上部にはインサート部材６と、吹き込みパイプ１１をヒートシールした吹き込み部９が形成されており、無菌容器１４は密封状態にある。１５は吹き込みパイプ１１のヒートシール部である。
【００１７】
この無菌容器１４を使用するには、まず図１０に示す様に、切断機１６でインサート部材６の薄肉のカット部１０を切断し、吹き込み部９を切り離す。次に、インサート部材６の口元部８から無菌容器１４内に充填パイプ１７を挿入し内容物１８を充填する。次に、ゴム栓１９が内装されたフランジ２０付きのキャップ２１を当該フランジ２０をインサート部材６のフランジ部Ｆに融着して一体化する。
【００１８】
なお、上記実施例におけるインサート部材６は、図３及び図４に示す様に、単一のプラスチック材質により射出成形されている。
【００１９】
無論、インサート部材６は、上記実施例に限定されるものではない。例えば、図１３及び図１４に示す様に、口元部８の外側壁にキャップ螺合用の外ねじ部２２を設け、吹き込み部９を切り離した後は、内ねじのキャップを螺合してもよい。また逆に、図１５及び図１６に示す様に、口元部８の内側壁にキャップ螺合用の内ねじ部２３を設けてもよい。また口元部８の内部に内栓の嵌合部２４を設け、吹き込み部９を切り離した後は、例えばゴム栓が内設されたキャップを嵌合して一体成形することも可能である。
【００２０】
この発明の無菌容器は、前述の通りであるので、成形段階において容器内部は密封状態にあるため、従来の容器の様に、輸液充填前に水洗し滅菌処理を施す必要がなく、輸液注入前の無菌処理を不要とし、また簡単に製造することができると共に、ヒートシールされた吹き込み部はカット部でカットされて切り離すことができるから、内容物を簡単に充填することができる。
【００２１】
なお、この発明は上記実施例に限定されるものではない。
【００２２】
【発明の効果】
以上の通り、この発明は、ブローピンの挿入口を有する金型に、パリソンを押し出し、該パリソンを挟み込んで型閉めしてプリブロー成形体を成形し、しかる後上記金型のブローピンの挿入口によって形作られたプリブロー成形体の開口部内に、口元部と当該口元部にカット部を介して設けた吹き込み部で構成されるインサート部材を先端に装着した当該ブローピンを打ち込み、上記インサート部材の吹き込み部に空気を吹き込んで膨らませ、上記ブローピンが後退した後は、上記吹き込み部を封止した無菌容器の製造方法であるので、従来の様に、輸液を注入する前に容器を水洗し、乾燥し、熱をかけて無菌処理する必要がなく、また大型の水洗装置をわざわざ設置する必要もない。
【００２３】
従って、輸液の充填工程が簡素化され、きわめて好ましい。この製造方法は無菌輸液容器に好適であるが、これに限定されず、食品等の容器の製造方法としても採用することができ、当該技術分野に資するところきわめて大きい。
【図面の簡単な説明】
【図１】パリソンの押出し工程を示す斜視図である。
【図２】型閉め工程を示す斜視図である。
【図３】インサート部材の斜視図である。
【図４】同断面図である。
【図５】吹き込み工程を示す斜視図である。
【図６】ブローピンの後退工程を示す斜視図である。
【図７】吹き込み部のシール工程を示す斜視図である。
【図８】製品である滅菌容器の取り出し工程を示す斜視図である。
【図９】滅菌容器を示す正面図である。
【図１０】吹き込み部の切断状態を示す滅菌容器の正面図である。
【図１１】同滅菌容器への内容物の充填状態を示す正面図である。
【図１２】キャップの接合状態を示す滅菌容器の正面図である。
【図１３】外ねじ式インサート部材の他実施例を示す斜視図である。
【図１４】同断面図である。
【図１５】内ねじ式インサート部材の他実施例を示す斜視図である。
【図１６】同断面図である。
【図１７】内栓式インサート部材の他実施例を示す斜視図である。
【図１８】同断面図である。[0001]
[Industrial applications]
The present invention relates to a method for producing a sterile container made of a synthetic resin, particularly a sterile container suitable for a sterile infusion container.
[0002]
[Prior art]
Since the conventional infusion container is sealed with a cap after the infusion is put, it is necessary to wash the container with water, dry it, and apply heat to sterilize it before injecting the infusion.
[0003]
[Problems to be solved by the invention]
However, washing the container with water, drying it, and applying heat to sterilize it before injecting the infusion is cumbersome in operation, and it is necessary to separately install a large water washing device in addition to the infusion device. In addition, there is a problem that it takes a long time for the washing process.
An object of the present invention is to provide a method of manufacturing a sterile container which does not require a washing device, does not require aseptic treatment before infusion, and can be manufactured easily.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a method in which a parison is extruded into a mold having a blow pin insertion opening, the parison is sandwiched, the mold is closed to form a pre-blow molded body, and thereafter, the blow pin of the mold is inserted. Into the opening of the pre-blow molded body formed by the mouth, the blow pin having an insert member composed of a mouth portion and a blowing portion provided at the mouth portion through a cut portion is attached at the tip, and the blow pin is blown. Air was blown into the portion to inflate it, and after the blow pin receded, a method of manufacturing a sterile container in which the blowing portion was sealed was employed.
[0005]
Since the blowing portion of the insert member blows air from the blow pin into the inside of the pre-blow molded body and, as described above, is a portion for sealing, it is desirable that the blowing portion be easily blown and have a structure that is easy to seal. In this regard, a blowing section in which the blowing pipe is exposed to the outside is preferable. Then, air is injected into the blowing pipe from a blow pin.
[0006]
Various means can be employed for sealing the blowing section, but heat sealing is particularly preferable. For example, it is appropriate that the heat-sealing pin descends after the blow pin has receded to seal and seal the blow-in portion.
[0007]
On the other hand, as described above, the mouth portion of the insert member has a blow-in portion formed through a thin cut portion. This means that when using a sterile container manufactured by the above-described manufacturing method, first, the blown portion in the sealed state is cut and removed with a thin cut portion, and after filling the contents into the container, the mouth portion This is because a usage method of attaching a cap to the device is adopted.
[0008]
In this regard, it is preferable that the blow-in portion be formed above the mouth portion through a thin cut portion, so that the blow-out portion can be easily removed, but is not particularly limited. A structure in which a side portion of the mouth portion is connected to the blowing portion via a thin cut portion may be used.
[0009]
As described above, this aseptic container has, at the mouth of the insert member, a blow section formed through a thin cut section, and cuts the blow section in a sealed state with a thin cut section. After removal and filling of the contents into the container, a cap is attached to the mouth for use. Therefore, it is desirable that the mouth has a structure in which the cap can be easily attached. For example, if a flange portion for cap fusion is formed at the mouth portion and a thin cut portion is formed on this flange portion, after cutting the thin cut portion, the flange portion of the cap is formed on the flange portion. Can be fused. Further, the cap can be screwed by forming an external thread or an internal thread for screwing the cap on the side wall of the mouth portion. Further, the inside of the mouth portion may be a fitting portion of the inner plug, and the inner plug may be fitted to this fitting portion.
[0010]
[Action]
The present invention relates to a pre-blow molding method in which a parison is extruded into a mold having a blow-pin insertion opening, the parison is sandwiched, the mold is closed, and a pre-blow molded body is formed. Into the opening of the body, drive the blow pin with an insert member comprising a mouth portion and a blowing portion provided through a cut portion at the mouth portion attached to the tip, and blow air into the blowing portion of the insert member to inflate. After the blow pin is retracted, since the manufacturing method is to seal the blowing portion, the container is not opened and sealed as in the related art, so that when injecting the infusion, the insert member is used. Cut the cut part of, remove the blowing part, inject the infusion from the mouth of the insert member integrated with the container, and close the cap. Methods of attaching the mouth portion can take, aseptic processing before infusion by can be eliminated.
[0011]
In addition, aseptic treatment can be eliminated not only for infusion but also for beverages and other liquids.
[0012]
Therefore, as in the conventional case, it is not necessary to wash, dry, and apply heat to sterilize the opened container, and it is not necessary to incorporate the washing device as a continuous process.
[0013]
【Example】
FIGS. 1, 2 and 5 to 8 are perspective views showing respective steps according to the method for producing a sterile container of the present invention. 1 is a perspective view showing a parison extrusion step, FIG. 2 is a perspective view showing a mold closing step, FIG. 5 is a perspective view showing a blowing step, FIG. 6 is a perspective view showing a blow pin retreating step, and FIG. 8 is a perspective view showing a step of taking out a product. FIG. 3 is a perspective view showing the insert member, and FIG. 4 is a sectional view of the same.
[0014]
First, as shown in FIG. 1, a parison 2 is extruded into a mold 1 in a mold open state, the parison 2 is sandwiched, the mold is closed while pre-blowing, and a pre-blow molded body 3 is formed as shown in FIG. . Next, as shown in FIGS. 2 and 5, the insert member 6 is attached to the tip of the pre-blow molded body 5 in the opening 5 of the pre-blow molding formed by the blow pin insertion opening 4 formed in the upper part of the mold 1. The blow pin 7 is driven. As shown in FIGS. 3 and 4, the insert member 6 according to the present embodiment forms a lower portion of the insert member 6, and has a lip 8 integrated with the opening 5 of the pre-blow molded body 3, An air blowing portion 9 constituting the upper part of the member 6 is formed, and a thin cut portion 10 is formed between the mouth portion 8 and the blowing portion 9. F is a flange part for cap fusion that protrudes outward from the middle part of the mouth part 8. Reference numeral 11 denotes a blowing pipe provided in the blowing section 9, and a blowing hole 12 is formed therein. Accordingly, air is blown from the blowing holes 12 formed in the blowing portion 9 of the insert member 6 to expand the pre-blow molded body 3.
[0015]
After the completion of the blow molding, as shown in FIG. 6, the blow pin 7 rises and retreats, and the insert member 6 is molded and integrated with the blow molded body 13. Next, the blowing pipe 11 of the blowing portion 9 of the insert member 6 that has protruded from the upper surface of the mold 1 is heat-sealed by the heat sealing device 14 that is installed on the upper surface of the mold 1 and moves up and down.
[0016]
After heat sealing, as shown in FIG. 8, the sterile container 14 as a product is taken out.
FIG. 9 is a front view showing the aseptic container 14 taken out of the mold 1, in which an insert member 6 and a blowing section 9 obtained by heat-sealing the blowing pipe 11 are formed at an upper portion, and the aseptic container 14 is sealed. It is in. Reference numeral 15 denotes a heat sealing portion of the blowing pipe 11.
[0017]
In order to use the aseptic container 14, first, as shown in FIG. 10, the cutting section 16 cuts the thin cut portion 10 of the insert member 6, and cuts off the blow-in portion 9. Next, the filling pipe 17 is inserted into the aseptic container 14 from the mouth 8 of the insert member 6, and the contents 18 are filled. Next, the cap 21 with the flange 20 in which the rubber stopper 19 is provided is integrated by fusing the flange 20 to the flange portion F of the insert member 6.
[0018]
The insert member 6 in the above embodiment is injection-molded from a single plastic material as shown in FIGS.
[0019]
Of course, the insert member 6 is not limited to the above embodiment. For example, as shown in FIGS. 13 and 14, an outer screw portion 22 for cap screwing may be provided on the outer wall of the mouth portion 8, and after the blowing portion 9 is cut off, an inner screw cap may be screwed. . Conversely, as shown in FIGS. 15 and 16, an inner thread portion 23 for screwing the cap may be provided on the inner side wall of the mouth portion 8. After the fitting portion 24 for the inner plug is provided inside the mouth portion 8 and the blow-in portion 9 is cut off, for example, a cap having a rubber plug provided therein may be fitted to be integrally formed.
[0020]
Since the sterile container of the present invention is as described above, the inside of the container is in a sealed state at the molding stage, so that it is not necessary to wash and sterilize before filling the infusion, as in the conventional container, As a result, the heat-sealed blowing section can be cut and cut off at the cut section, so that the contents can be easily filled.
[0021]
The present invention is not limited to the above embodiment.
[0022]
【The invention's effect】
As described above, according to the present invention, a parison is extruded into a mold having a blow pin insertion port, the parison is sandwiched, the mold is closed and the pre-blow molded body is formed, and then the preform is formed by the blow pin insertion port of the mold. Into the opening of the molded pre-blow molded body, the blow pin with an insert member comprising a mouth portion and a blowing portion provided at the mouth portion through a cut portion is attached at the tip, and air is blown into the blowing portion of the insert member. After the blow pin has receded, since the method is for manufacturing a sterile container in which the blowing portion is sealed, the container is washed with water before infusion of the infusion solution, dried, and heated as in the related art. There is no need to perform aseptic treatment, and there is no need to separately install a large-sized water washing device.
[0023]
Therefore, the filling step of the infusion is simplified, which is very preferable. This production method is suitable for a sterile infusion container, but is not limited thereto, and can be employed as a production method for containers for foods and the like, and is extremely large as it contributes to the technical field.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a step of extruding a parison.
FIG. 2 is a perspective view showing a mold closing step.
FIG. 3 is a perspective view of an insert member.
FIG. 4 is a sectional view of the same.
FIG. 5 is a perspective view showing a blowing step.
FIG. 6 is a perspective view showing a retracting step of the blow pin.
FIG. 7 is a perspective view showing a step of sealing a blowing section.
FIG. 8 is a perspective view showing a step of taking out a sterile container as a product.
FIG. 9 is a front view showing a sterilization container.
FIG. 10 is a front view of the sterilization container showing a cutting state of the blowing section.
FIG. 11 is a front view showing a state where the contents are filled in the sterilization container.
FIG. 12 is a front view of the sterilization container showing a joined state of the cap.
FIG. 13 is a perspective view showing another embodiment of the externally threaded insert member.
FIG. 14 is a sectional view of the same.
FIG. 15 is a perspective view showing another embodiment of the internally threaded insert member.
FIG. 16 is a sectional view of the same.
FIG. 17 is a perspective view showing another embodiment of the inner plug type insert member.
FIG. 18 is a sectional view of the same.

Claims (8)

ブローピンの挿入口を有する金型に、パリソンを押し出し、該パリソンを挟み込んで型閉めしてプリブロー成形体を成形し、しかる後上記金型のブローピンの挿入口によって形作られたプリブロー成形体の開口部内に、口元部と当該口元部にカット部を介して設けた吹き込み部で構成されるインサート部材を先端に装着した当該ブローピンを打ち込み、上記インサート部材の吹き込み部に空気を吹き込んで膨らませ、上記ブローピンが後退した後は、上記吹き込み部を封止したことを特徴とする無菌容器の製造方法。A parison is extruded into a mold having a blow-pin insertion port, the parison is sandwiched, the mold is closed, and a pre-blow molded body is formed. Thereafter, the opening of the pre-blow molded body is formed by the blow-pin insertion port of the mold. On the tip, an insert member composed of a mouth portion and a blow portion provided at the mouth portion via a cut portion is driven with the blow pin attached thereto, and air is blown into the blow portion of the insert member to inflate the blow pin. A method for producing a sterile container, wherein the blowing section is sealed after retreating. 無菌容器が無菌輸液容器である請求項１記載の無菌容器の製造方法。The method for producing a sterile container according to claim 1, wherein the sterile container is a sterile infusion container. 口元部の上部に、薄肉のカット部を介して吹き込み部が形成されたブロー成形用無菌容器のインサート部材。An insert member for an aseptic container for blow molding, wherein a blow-in portion is formed above a mouth portion through a thin cut portion. 口元部にはキャップ融着用のフランジ部が形成され、薄肉のカット部がこのフランジ部に形成されている請求項３記載のインサート部材。The insert member according to claim 3, wherein a flange portion for fusing the cap is formed at the mouth portion, and a thin cut portion is formed on the flange portion. 口元部の側壁にキャップ螺合用の外ネジ部又は内ねじ部が形成されている請求項３記載のブロー成形用無菌容器のインサート部材。The insert member of a sterile container for blow molding according to claim 3, wherein an outer thread portion or an inner thread portion for screwing the cap is formed on a side wall of the mouth portion. 口元部の内部が内栓の嵌合部となっている請求項３記載のブロー成形用無菌容器のインサート部材。4. The insert member for a blow-molded aseptic container according to claim 3, wherein the inside of the mouth portion is a fitting portion of the inner plug. 請求項３、４、５又は６記載のインサート部材の口元部が一体化された無菌容器。A sterile container in which a mouth portion of the insert member according to claim 3, 4, 5, or 6 is integrated. 請求項７に記載された無菌容器を使用する方法であって、吹き込み部を薄肉のカット部でカットして切り離し、容器内に内容物を充填した後、口元部にキャップを取り付ける無菌容器の使用方法。 A method for using a sterile container according to claim 7, wherein the blow-in portion is cut off with a thin cut portion, cut off, and after filling the content into the container, a cap is attached to a mouth portion. Method.
JP08335795A 1995-03-14 1995-03-14 Manufacturing method of aseptic container Expired - Fee Related JP3590667B2 (en)

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US7097445B2 (en) * 2003-09-03 2006-08-29 Ti Group Automotive Systems, L.L.C. Method and apparatus for making a blow molded fuel tank
JP2014088188A (en) * 2012-10-29 2014-05-15 Inter Medic Co Ltd Method of producing sealed package and blow molded container used therein
DE102012022395A1 (en) * 2012-11-16 2014-05-22 Illinois Tool Works Inc. Method for producing a fuel filling system for a motor vehicle and fuel filling system for a motor vehicle
FR2998825B1 (en) * 2012-12-04 2014-12-05 Productions Realisations Plastiques PROCESS FOR MANUFACTURING A PLASTIC CONTAINER PROVIDED WITH A COLLAR BY EXTRUSION-BLOWING, AND CONTAINER OBTAINED BY SAID METHOD

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