JPS637927A - Manufacture of vessel having minimum diameter part - Google Patents
Manufacture of vessel having minimum diameter partInfo
- Publication number
- JPS637927A JPS637927A JP61151410A JP15141086A JPS637927A JP S637927 A JPS637927 A JP S637927A JP 61151410 A JP61151410 A JP 61151410A JP 15141086 A JP15141086 A JP 15141086A JP S637927 A JPS637927 A JP S637927A
- Authority
- JP
- Japan
- Prior art keywords
- parison
- mold
- vessel
- small diameter
- extremely small
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 238000010102 injection blow moulding Methods 0.000 description 8
- 238000000071 blow moulding Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003889 eye drop Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Classifications
-
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
- B29C49/4247—Means for deforming the parison prior to the blowing operation using spreading or extending means
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、目薬容器・スボイ／ト・比重かんなどのよう
に一部分が極小径となった容器を射出吹込成形法で製造
する方法に関するものである。[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a method for manufacturing containers, such as eye drop containers, suboice containers, specific gravity containers, etc., in which a portion has an extremely small diameter by injection blow molding. .
従来の技術
射出吹込成形法はパリソンを射出成形後に、そのパリソ
ンよりコア型を抜き、パリソンを所定の型内にセットし
てエアを吹き込んで所定形状とするものである。In the conventional injection blow molding method, after a parison is injection molded, a core mold is removed from the parison, the parison is set in a predetermined mold, and air is blown into the parison to form a predetermined shape.
発明が解決しようとする問題点
かかる射出吹込成形法によって中空の容器を製造する際
には、パリソンを射出成形する場合外コア型の径が下記
の軸で制限されるので極小径のパリソンを射出成形でき
ず、極小径部分を有する容器を製造できない。Problems to be Solved by the Invention When manufacturing a hollow container using the injection blow molding method, the diameter of the outer core mold is limited by the following axis when injection molding a parison, so it is difficult to inject a parison with an extremely small diameter. It cannot be molded and containers with extremely small diameter portions cannot be manufactured.
つまり、コア型は射出時に圧力を受けるので、あまり小
径とするとその圧力で曲がってしまうと共に、コア型は
温度制御のため中空にして中に冷水、温水、熱媒体、サ
ーモパイプを入れるので物理的にあまり小径とすること
ができない。In other words, the core mold is subjected to pressure during injection, so if the diameter is too small, it will bend due to the pressure.In addition, the core mold is hollow to control the temperature, and cold water, hot water, heat medium, and thermo pipes are placed inside, so it is physically difficult. It is not possible to make the diameter too small.
なお、前述のような極小径部分を有する容器は中空成形
により製造できるが、中空成形で製造した容器は開口部
の寸法精度が悪く、表面もきたないので後仕上加工を必
要とするから、製造工程が複雑となると共に、材料のロ
スも多く、しかもパリノンコントローラー等で肉厚をあ
る程度まで調整できるが限度があり、射出吹込成形法ま
ではできない問題点を有し、これに対して射出吹込成形
法によって製造した容器は開口部の精度が良く、表面も
きれいになるので後仕上加工を必要としないから、製造
工程が単純で材料のロスも少な（なり、しかも肉厚の調
整の自由度が中空成形法よりも大きくできる利点を有す
る。Containers with extremely small diameter portions as mentioned above can be manufactured by blow molding, but containers manufactured by blow molding have poor dimensional accuracy at the opening and a dirty surface, requiring post-finishing. The process is complicated, there is a lot of material loss, and although the wall thickness can be adjusted to a certain extent using a parinon controller, there are limitations, and injection blow molding has problems that cannot be achieved with injection blow molding. Containers manufactured using the molding method have good opening precision and a clean surface, so there is no need for post-finishing, so the manufacturing process is simple and there is less material loss (and there is more flexibility in adjusting the wall thickness). It has the advantage that it can be made larger than the blow molding method.
そこで、本発明は極小径部分を有する容器を射出吹込成
形法で製造できるようＫすることを目的とするものであ
る。Therefore, an object of the present invention is to enable a container having an extremely small diameter portion to be manufactured by injection blow molding.
問題点を解決するための手段及び作用
射出成形したパリソンの一部分を引張って極小径部を形
成し、その後に所定の型内にセットしてエアを吹き込ん
で極小径部を有する容器を製造するようにして、コア型
の径の制限によって決定されるパリソンの最小径よりも
小径なる極小径部を有する容器を製造できるようにした
ものである。Means and operation for solving the problem A part of the injection molded parison is stretched to form an extremely small diameter part, and then it is set in a predetermined mold and air is blown into it to produce a container having an extremely small diameter part. This makes it possible to manufacture a container having an extremely small diameter portion that is smaller than the minimum diameter of the parison determined by the diameter limit of the core mold.
実施例
パリソン射出成形後にパリソンよりコア型を抜いて第１
図（ａ） Ｋ示すような長尺小径の袋状のパリソン１を
得る。Example After parison injection molding, the core mold is removed from the parison and the first
A long and small diameter bag-shaped parison 1 as shown in Figure (a) K is obtained.
このパリソン！を第１図（ｂ）Ｋ示すように、一端部と
他端部を固定クランパ２と可動クランパ３で把持すると
共に、可動クランパ３を移動してパリソン１を引張って
中間部分を射出時に得られたパリソン径ｄ１よりも小径
ｄ２なる極小径部分１′とする。This parison! As shown in FIG. 1(b)K, one end and the other end are gripped by the fixed clamper 2 and the movable clamper 3, and the movable clamper 3 is moved to pull the parison 1 so that the middle part is obtained during injection. The minimum diameter portion 1' has a diameter d2 smaller than the parison diameter d1.
なお、一対の可動クランパで把持して一対の可動クラン
パを離隔する方向に移動して極小径部分を形成しても良
い。Note that the extremely small diameter portion may be formed by gripping with a pair of movable clampers and moving the pair of movable clampers in a direction that separates them.
第１図（Ｃ）に示すように所定の形状の型４ＰＥ３に引
張りしたパリソン１をセットし、エアーを吹き込んで第
１図（ｄ）に示すように型４内に圧着して容器５を吹込
製造し、この後に型４より取り出して第１図（ｅ）に示
すように極小径部分５′を有する容器５を得ろ。As shown in FIG. 1(C), the stretched parison 1 is set in a mold 4PE3 having a predetermined shape, and air is blown into the mold 4 to press it into the mold 4 as shown in FIG. 1(d), and the container 5 is blown. After manufacturing, the container 5 is removed from the mold 4 to obtain a container 5 having an extremely small diameter portion 5' as shown in FIG. 1(e).
なお、パリソン１を引張って極小径部を形成した後に再
加熱、あるいは予備吹込み、吹込み、延伸あるいはこれ
らの組合せの工程を進むことで極小径部を有する容器と
しても良い。Note that a container having an extremely small diameter portion may be obtained by stretching the parison 1 to form an extremely small diameter portion and then proceeding with the steps of reheating, preliminary blowing, blowing, stretching, or a combination thereof.
発明の効果
パリソン射出成形時に用いるコア型の径の制限によって
決定されるパリソンの最小径よりも小径なる極小径部を
有する容器を射出吹込成形法によって製造できる。Effects of the Invention A container having an extremely small diameter portion smaller than the minimum diameter of the parison determined by the diameter limit of the core mold used during parison injection molding can be manufactured by injection blow molding.
したがって、目薬容器、スポイトのよう忙ポンピングな
どで滴下させる液体の容器や、比重かんのように上下両
方向に極小径部を有する容器等で射出吹込成形法によっ
て簡単に製造できる。Therefore, eye drop containers, containers for liquids that are dripped by pumping, such as droppers, containers that have extremely small diameter portions in both the upper and lower directions, such as specific gravity tubes, and the like can be easily manufactured by injection blow molding.
第１図（ａ）〜（ｅ）は本発明の一実施例を示す工程順
説明図である。
１はパリソン、１′は極小径部、５は容器、５′は極小
径部。FIGS. 1(a) to 1(e) are step-by-step explanatory diagrams showing an embodiment of the present invention. 1 is a parison, 1' is a very small diameter part, 5 is a container, and 5' is a very small diameter part.
Claims (1)
′を形成し、この後に所定の型４内にセットしてエアを
吹き込んで極小径部５′を有する容器とすることを特徴
とする極小径部を有する容器の製造方法。A part of the injection molded parison 1 is pulled to form the extremely small diameter part 1.
A method for producing a container having an extremely small diameter section, which comprises forming a container having an extremely small diameter section 5', and then setting the container in a predetermined mold 4 and blowing air into the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61151410A JPH0615196B2 (en) | 1986-06-30 | 1986-06-30 | Method for manufacturing container having extremely small diameter portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61151410A JPH0615196B2 (en) | 1986-06-30 | 1986-06-30 | Method for manufacturing container having extremely small diameter portion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS637927A true JPS637927A (en) | 1988-01-13 |
| JPH0615196B2 JPH0615196B2 (en) | 1994-03-02 |
Family
ID=15517992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61151410A Expired - Lifetime JPH0615196B2 (en) | 1986-06-30 | 1986-06-30 | Method for manufacturing container having extremely small diameter portion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615196B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087394A (en) * | 1989-11-09 | 1992-02-11 | Scimed Life Systems, Inc. | Method for forming an inflatable balloon for use in a catheter |
| JP2021504196A (en) * | 2017-11-30 | 2021-02-15 | コーニング インコーポレイテッド | Systems and methods for forming stretch blow molded pipettes and stretch blow molded pipettes |
-
1986
- 1986-06-30 JP JP61151410A patent/JPH0615196B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087394A (en) * | 1989-11-09 | 1992-02-11 | Scimed Life Systems, Inc. | Method for forming an inflatable balloon for use in a catheter |
| JP2021504196A (en) * | 2017-11-30 | 2021-02-15 | コーニング インコーポレイテッド | Systems and methods for forming stretch blow molded pipettes and stretch blow molded pipettes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0615196B2 (en) | 1994-03-02 |
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