JPH0337501B2 - - Google Patents
Info
- Publication number
- JPH0337501B2 JPH0337501B2 JP58006209A JP620983A JPH0337501B2 JP H0337501 B2 JPH0337501 B2 JP H0337501B2 JP 58006209 A JP58006209 A JP 58006209A JP 620983 A JP620983 A JP 620983A JP H0337501 B2 JPH0337501 B2 JP H0337501B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- container body
- molding space
- space
- blow
- 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.)
- Expired - Lifetime
Links
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
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
-
- 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
- B29C49/0411—Means for defining the wall or layer thickness
- B29C49/04114—Means for defining the wall or layer thickness for keeping constant thickness
-
- 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
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C2049/4807—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity by movable mould parts in the mould halves
-
- 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
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C49/4812—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity and welding opposite wall parts of the parisons or preforms to each other
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、中空成形容器の製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a blow-molded container.
中空成形容器において、容器と容器とを接続し
たり、容器と他の部品とを接続したり、容器内に
所望の部品を挿入してその挿入口を密閉したりで
きるようにするため、従来、様々な手段が考えら
れている。例えば、容器と容器とを接続するのは
主に、容器間にて内容液が流動しうるようにする
ことが目的であり、そのために、従来一般には、
容器本体より成形可能な範囲のノズルを１個又は
複数個形成しこれら容器を並列又は直列に配列し
各ノズル間をフレキシブルパイプ等で接続する構
成がとられている。しかしながら、このような従
来の構成では、ノズルの径の成形範囲に限界があ
り容器間における内容液の流量に限りがあり、ま
た、容器と容器との固定はフレキシブルパイプを
介して行なわれているため、容器同志の固定はど
うしても不安定なものとなつてしまうという欠点
があつた。容器と他の部品とを接続したり、容器
内に所望の部品を挿入してその挿入口を密閉した
りするための従来構成もまた同様の問題を有して
いる。 Conventionally, in blow-molded containers, in order to connect containers, connect containers and other parts, insert desired parts into the container and seal the insertion opening, etc. Various methods are being considered. For example, the main purpose of connecting containers is to allow the liquid content to flow between the containers, and for this purpose, conventionally,
One or more nozzles are formed within the range that can be molded from the container body, these containers are arranged in parallel or in series, and each nozzle is connected with a flexible pipe or the like. However, in such a conventional configuration, there is a limit to the molding range of the nozzle diameter, which limits the flow rate of the content liquid between the containers, and the containers are fixed via flexible pipes. Therefore, there was a drawback that fixing the containers together was inevitably unstable. Conventional configurations for connecting a container and other parts, or for inserting a desired part into a container and sealing the insertion opening, also have similar problems.
従来、フランジ継手は、金属容器等において
は、容器間の接続等のためよく使用されている
が、その製作も容易でなく高価なものが多い。 Conventionally, flange joints have been often used for connecting metal containers and the like between containers, but they are not easy to manufacture and are often expensive.
本発明の目的は、このような従来技術の問題点
にかんがみ、容器間の接続等を容易に、安定に且
つ堅固に行なえるような安価な中空成形容器の製
造方法を提供することである。 SUMMARY OF THE INVENTION In view of the problems of the prior art, an object of the present invention is to provide an inexpensive method for manufacturing blow-molded containers that allows connections between containers to be easily, stably, and firmly established.
本発明による中空成形容器の製造方法は、容器
本体部を成形する容器本体部成形空間及び該空間
のパーテイング部の任意の点にてこの容器本体部
成形空間から任意の角度にて延長しフランジ部を
成形するためのフランジ部成形空間を有した割型
金型であつて、前記フランジ部成形空間には該フ
ランジ部成形空間の延長方向に沿つて移動しうる
ピストンを備えた割型金型を準備し、前記ピスト
ンを前記フランジ部成形空間内にて前記容器本体
部成形空間から遠い所定の後退位置に固定した状
態にて、前記割型金型の前記容器本体部成形空間
へ前記割型金型のパーテイング部の延長方向に沿
つて合成樹脂のパリソンを吹き込み、該パリソン
が硬化する前に前記ピストンを前記フランジ部成
形空間内にて前記容器本体部成形空間に近い所定
の前進位置へ移動させることによつてフランジ部
の成形を完了させることを特徴とする。 The method for manufacturing a blow-molded container according to the present invention includes a container body molding space in which a container body is molded, and a flange portion extending at an arbitrary angle from the container body molding space at an arbitrary point in a parting part of the space. A split mold having a flange molding space for molding the flange, the split mold having a piston movable along an extending direction of the flange molding space in the flange molding space. With the piston fixed in the flange molding space at a predetermined retracted position far from the container body molding space, the split mold is inserted into the container body molding space of the split mold. A synthetic resin parison is injected along the extending direction of the parting part of the mold, and before the parison hardens, the piston is moved within the flange part molding space to a predetermined forward position close to the container body part molding space. In particular, the forming of the flange portion is completed.
次に、添付図面に基づいて本発明の実施例につ
いて本発明をより詳細に説明する。 Next, the present invention will be described in more detail with reference to embodiments of the present invention based on the accompanying drawings.
第１図は、本発明の一実施例として製造された
中空成形容器を示す斜視図である。この中空成形
容器は、合成樹脂にて成形されたもので、容器本
体部１と一体的に成形されたフランジ部２を有し
ている。第１図において、Ｙ−Ｙ線は、容器本体
部１の長手方向を示し、こゝで、長手方向とは、
パリソンが押し出される方向であり、この場合、
パリソンとは、成形器のダイスより筒状で押し出
される合成樹脂をいう。フランジ部２は、容器本
体部１のパーテイングライン５上の任意の点にて
容器本体部１の長手方向Ｙ−Ｙと直角な方向Ｘ−
Ｘの延長するように形成されている。この実施例
では、フランジ部２は、容器本体部１の長手方向
Ｙ−Ｙと直角な方向に延長するように形成されて
いるのであるが、直角以外の任意の角度をなす方
向に延長するように形成されてもよいし、また、
この実施例では、フランジ部２は、１個のみ形成
したのであるが、同様のフランジ部を複数個形成
してもよい。フランジ部２は、内容液を流通させ
るための流通路又は部品の挿入路として働く開孔
４及び相手側フランジとの結合をするためのボル
ト孔３を有しており、これら孔は、成形後孔加工
されるものである。 FIG. 1 is a perspective view showing a blow-molded container manufactured as an example of the present invention. This blow-molded container is molded from synthetic resin and has a flange portion 2 integrally molded with a container body portion 1. In FIG. 1, the Y-Y line indicates the longitudinal direction of the container body 1, where the longitudinal direction is
The direction in which the parison is extruded, in this case,
A parison is a synthetic resin that is extruded in a cylindrical shape from the die of a molding machine. The flange portion 2 is attached to a direction X- perpendicular to the longitudinal direction Y-Y of the container body 1 at an arbitrary point on the parting line 5 of the container body 1.
It is formed to be an extension of X. In this embodiment, the flange portion 2 is formed to extend in a direction perpendicular to the longitudinal direction Y-Y of the container body portion 1, but it is formed to extend in a direction forming an arbitrary angle other than the right angle. may be formed, and
In this embodiment, only one flange portion 2 is formed, but a plurality of similar flange portions may be formed. The flange portion 2 has an opening 4 that serves as a flow path for distributing the liquid inside or a passage for inserting parts, and bolt holes 3 for connecting with a mating flange. Holes are machined.
次に、このような中空成形容器の本発明による
製造方法の一実施例について、第２図、第３図及
び第４図を参照して説明する。 Next, an embodiment of the method for manufacturing such a blow-molded container according to the present invention will be described with reference to FIGS. 2, 3, and 4.
第２図の横断面図に示されるように、中空成形
容器を製造するに際して、先ず、容器本体部１を
成形する容器本体部成形空間１０及びこの容器本
体部成形空間１０のパーテイング部の任意の点に
てこの容器本体部成形空間１０からある角度、こ
の実施例では直角にて延長しフランジ部２を成形
するためのフランジ部成形空間８を作り出すよう
に、Ｘ−Ｘ線に沿うパーテイングラインにて組み
合わせられる割型金型６及び６′を準備する。フ
ランジ部成形空間８には、このフランジ部成形空
間８の延長方向Ｘ−Ｘに沿つて移動しうるピスト
ン７が設けられている。このピストン７は、駆動
手段としてのシリンダ９にて、フランジ部成形空
間８内にて、容器本体部成形空間１０から遠い所
定の後退位置（第２図に示すＡ位置）と、容器本
体部成形空間１０に近い所定の前進位置（第３図
に示すＢ位置）との間で移動されるようになつて
いる。 As shown in the cross-sectional view of FIG. 2, when manufacturing a blow-molded container, first, a container body molding space 10 for molding the container body 1 and an arbitrary parting part of the container body molding space 10 are formed. A parting line along the X-X line is extended from the container body molding space 10 at a certain angle, in this embodiment at a right angle, to create a flange molding space 8 for molding the flange 2. Separate molds 6 and 6' to be assembled are prepared. The flange molding space 8 is provided with a piston 7 that can move along the extending direction XX of the flange molding space 8 . This piston 7 is moved between a predetermined retracted position (A position shown in FIG. 2) far from the container body molding space 10 within the flange molding space 8 and a container body molding space by a cylinder 9 as a driving means. It is designed to be moved between a predetermined forward position (position B shown in FIG. 3) near the space 10.
第２図に示すように、ピストン７をフランジ部
成形空間８内にて後退位置Ａに固定した状態に
て、割型金型の容器本体部成形空間１０へ、割型
金型のパーテイング部の延長方向（第２図の紙面
に垂直な方向）に沿つて合成樹脂のパリソンを吹
き込む。この時、パリソンは、金型内壁に対して
空圧Ｐでブローされ、設定された肉厚の容器本体
部壁１及びフランジ部壁２を形成する。パリソン
は、金型内壁にブローされると同時に、パリソン
表面より硬化し、製品を形成するのであるが、前
述したようなパリソンの吹き込み後、パリソンが
硬化する前に、ピストン７を第２図に示す後退位
置Ａから、第３図に示す前進位置Ｂへ移動させ
て、パリソンが完全に硬化されるまで金型冷却を
行い、所定のフランジ部２の形状の成形を完了さ
せる。このような成形後、フランジ部２の壁部分
２Ａを除去して、第１図に関して前述したよう
に、開孔４を形成し、また、フランジ部２の周縁
に複数のボルト孔３を形成すればよい。 As shown in FIG. 2, with the piston 7 fixed at the retracted position A in the flange molding space 8, the parting part of the split mold is moved into the container body molding space 10 of the split mold. A parison of synthetic resin is blown along the extension direction (direction perpendicular to the plane of the paper in FIG. 2). At this time, the parison is blown against the inner wall of the mold by air pressure P to form a container body wall 1 and a flange wall 2 having a set thickness. At the same time as the parison is blown onto the inner wall of the mold, it hardens from the surface of the parison to form a product. After the parison is blown as described above, but before the parison hardens, the piston 7 is moved as shown in FIG. The mold is moved from the retracted position A shown in FIG. 3 to the forward position B shown in FIG. 3, the mold is cooled until the parison is completely hardened, and the molding of the predetermined shape of the flange portion 2 is completed. After such forming, the wall portion 2A of the flange portion 2 is removed to form the apertures 4 and a plurality of bolt holes 3 at the periphery of the flange portion 2, as described above with respect to FIG. Bye.
吹込成形においては、パリソンの吹込みが行わ
れる金型空間の最大部の直径とパリソンの直径と
の比をブロー比と称し、一般に、このブロー比が
小さい程成形を容易に行なえるといわれている。
前述したような本発明による製造方法によれば、
フランジ部成形空間を広く取ることにより、ブロ
ー比を小さくできるので、成形を非常に容易に行
なえる。 In blow molding, the ratio of the diameter of the largest part of the mold space where the parison is blown to the diameter of the parison is called the blow ratio, and it is generally said that the smaller the blow ratio, the easier the molding can be. There is.
According to the manufacturing method according to the present invention as described above,
By widening the flange molding space, the blow ratio can be reduced, making molding very easy.
また、一般に中空成形では、製品の所定の個所
だけに必要なパリソン量を補充するのは困難であ
るが、前述したような本発明の製造方法によれ
ば、第２図に示されたような広いフランジ部成形
空間８に一旦ブローされたパリソンを、ピストン
７の作動により、第３図に示されたように所定の
個所に集めることにより、所望の厚みのフランジ
部２を極めて容易に効率良く形成することができ
る。 In addition, in general, in blow molding, it is difficult to replenish the required amount of parison only to predetermined parts of the product, but according to the manufacturing method of the present invention as described above, The parison, once blown into the wide flange forming space 8, is collected at a predetermined location by the operation of the piston 7 as shown in FIG. 3, thereby forming the flange 2 of a desired thickness very easily and efficiently. can be formed.
その上、本発明の製造方法によれば、金型外寸
法でフランジ部２が形成されるので、フランジ部
２の肉厚が一定でフランジ部２の外面が平坦でシ
ール性等も良好なものとすることができる。 Furthermore, according to the manufacturing method of the present invention, the flange portion 2 is formed with the outside dimensions of the mold, so the wall thickness of the flange portion 2 is constant, the outer surface of the flange portion 2 is flat, and the sealing performance is good. It can be done.
更にまた、本発明の製造方法によれば、容器本
体部１の成形肉厚に関係なくピストン７の作動に
より、所定のフランジ部２の形成樹脂量が確保出
来るため、堅固に且つ安価にフランジ部を成形す
ることができる。 Furthermore, according to the manufacturing method of the present invention, a predetermined amount of resin for forming the flange portion 2 can be secured by the operation of the piston 7 regardless of the molded wall thickness of the container body portion 1, so that the flange portion can be formed firmly and inexpensively. can be molded.
第４図及び第５図は、前述したような本発明に
よる中空成形容器の実際の使用例を示している。
第４図は、同様の形状の中空成形容器１を互いに
接続して使用した例を略示しており、両容器１
は、フランジ部２にてボルト１１を用いて互いに
接続されている。第５図は、中空成形容器内へ他
の部品を挿入するようにした使用例を一部破断し
て略示している。この使用例では、中空成形容器
１′のフランジ部２′の開孔４′を通して他の部品
１２を中空成形容器１′内へ挿入するようにして、
その部品２を取付けるためのフランジ１３をシー
ル部材１４を介してフランジ部２′にボルト１１
を用いて結合固定してなつている。 4 and 5 show an example of the actual use of the blow-molded container according to the invention as described above.
FIG. 4 schematically shows an example in which hollow molded containers 1 having similar shapes are connected to each other, and both containers 1 are used.
are connected to each other at the flange portion 2 using bolts 11. FIG. 5 schematically shows, partially cut away, an example of use in which other parts are inserted into the blow-molded container. In this usage example, the other part 12 is inserted into the blow-molded container 1' through the opening 4' of the flange portion 2' of the blow-molded container 1',
A flange 13 for attaching the part 2 is attached to the flange portion 2' through a sealing member 14 with bolts 11.
It is bonded and fixed using.
添付図面の第１図は本発明の一実施例として製
造された中空成形容器を示す斜視図、第２図及び
第３図は本発明による中空成形容器の製造方法の
一実施例を説明するための横断面図、第４図及び
第５図は本発明による中空成形容器の実際の使用
例を示す概略図である。
１……容器本体部、２……フランジ部、５……
パーテイングライン、６，６′……割型金型、７
……ピストン、８……フランジ部成形空間、９…
…シリンダ、１０……容器本体部成形空間。
FIG. 1 of the accompanying drawings is a perspective view showing a blow-molded container manufactured as an embodiment of the present invention, and FIGS. 2 and 3 are for explaining an embodiment of the method of manufacturing a blow-molded container according to the present invention. 4 and 5 are schematic diagrams showing an example of actual use of the blow-molded container according to the present invention. 1... Container body part, 2... Flange part, 5...
Parting line, 6, 6'...split mold, 7
...Piston, 8...Flange molding space, 9...
...Cylinder, 10... Container body molding space.
Claims (1)
び該空間のパーテイング部の任意の点にてこの容
器本体部成形空間から任意の角度にて延長しフラ
ンジ部を成形するためのフランジ部成形空間を有
した割型金型であつて、前記フランジ部成形空間
には該フランジ部成形空間の延長方向に沿つて移
動しうるピストンを備えた割型金型を準備し、前
記ピストンを前記フランジ部成形空間内にて前記
容器本体部成形空間から遠い所定の後退位置に固
定した状態にて、前記割型金型の前記容器本体部
成形空間へ前記割型金型のパーテイング部の延長
方向に沿つて合成樹脂のパリソンを吹き込み、該
パリソンが硬化する前に前記ピストンを前記フラ
ンジ部成形空間内にて前記容器本体部成形空間に
近い所定の前進位置へ移動させることによつてフ
ランジ部の形成を完了させることを特徴とする中
空成形容器の製造方法。1. A container body molding space for molding the container body, and a flange molding space extending at any angle from the container body molding space at any point in the parting part of the space to mold the flange. A split mold with a piston movable along the extension direction of the flange molding space is prepared in the flange molding space, and the piston is moved into the flange molding space. While fixed in a predetermined retreated position far from the container body molding space in the space, the mold is moved into the container body molding space of the split mold along the extending direction of the parting part of the split mold. The formation of the flange portion is completed by blowing a synthetic resin parison and moving the piston within the flange portion forming space to a predetermined forward position close to the container body portion forming space before the parison hardens. A method for producing a blow-molded container, the method comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58006209A JPS59131431A (en) | 1983-01-17 | 1983-01-17 | Hollow molded container and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58006209A JPS59131431A (en) | 1983-01-17 | 1983-01-17 | Hollow molded container and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59131431A JPS59131431A (en) | 1984-07-28 |
| JPH0337501B2 true JPH0337501B2 (en) | 1991-06-05 |
Family
ID=11632135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58006209A Granted JPS59131431A (en) | 1983-01-17 | 1983-01-17 | Hollow molded container and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131431A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106569A (en) * | 1990-05-04 | 1992-04-21 | Phillips Petroleum Company | Blow molding and compression molding of an article |
| FR2738180B1 (en) * | 1995-08-30 | 1997-10-31 | Hutchinson | METHOD FOR MANUFACTURING A PLASTIC PRODUCT BY EXTRUSION-BLOWING IN THREE DIMENSIONS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3983199A (en) * | 1974-10-15 | 1976-09-28 | Owens-Illinois, Inc. | Method for making plastic articles having blown and non-blown portions |
-
1983
- 1983-01-17 JP JP58006209A patent/JPS59131431A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59131431A (en) | 1984-07-28 |
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