JPH0352335B2 - - Google Patents
Info
- Publication number
- JPH0352335B2 JPH0352335B2 JP58120405A JP12040583A JPH0352335B2 JP H0352335 B2 JPH0352335 B2 JP H0352335B2 JP 58120405 A JP58120405 A JP 58120405A JP 12040583 A JP12040583 A JP 12040583A JP H0352335 B2 JPH0352335 B2 JP H0352335B2
- Authority
- JP
- Japan
- Prior art keywords
- elbow
- tank
- cavity
- hole
- pedestal
- 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
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
- B29C49/20—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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C2049/2017—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 outside 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
- B29C2049/2047—Tubular inserts, e.g. tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (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、ポリエチレン等の熱可塑性樹脂にて
形成される中空のタンクに注出口等の用途のため
にエルボを固着したエルボ付きタンクの製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a tank with an elbow, in which an elbow is fixed to a hollow tank made of a thermoplastic resin such as polyethylene for use as a spout or the like.
従来のこの種のタンクの製造方法は、まずタン
クを中空成形法により成形した後、エルボの座面
を熱溶着によりタンクの所定の個所に固着する手
段がとられていた。 The conventional method for manufacturing this type of tank has been to first mold the tank using a blow molding method, and then fix the seat surface of the elbow to a predetermined location on the tank by heat welding.
上記熱溶着の手段には、スピンウエルデイン
グ、熱板溶着、熱風溶着、高周波溶着、超音波溶
着等があるが、いずれも溶着時に圧着しなければ
ならず、このときにタンクに略没等の変形が生じ
やすく、また溶着時の位置決めが困難であるとい
う不具合があつた。 The above-mentioned thermal welding methods include spin welding, hot plate welding, hot air welding, high frequency welding, and ultrasonic welding, but all of them require pressure bonding during welding, and at this time, there is a risk of almost submerging in the tank. There were problems in that deformation easily occurred and positioning during welding was difficult.
本発明は上記ことにかんがみなされたもので、
タンクの中空成形時にこれと同時にエルボを溶着
することができて、圧着によるタンクの変形が防
止できると共に、位置決めを考慮することなく所
定の位置に精確にエルボを溶着することができる
ようにしたエルボ付きタンクの製造方法を提供し
ようとするものである。 The present invention was conceived in view of the above,
This elbow can be welded at the same time as the hollow molding of the tank, preventing deformation of the tank due to crimping, and making it possible to accurately weld the elbow in a predetermined position without considering positioning. The purpose of the present invention is to provide a method for manufacturing a tank with an attached tank.
以下本発明の実施態様を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明方法により製造されるタンクを
示すもので、１はタンク本体、２はこのタンク本
体１の注入口、３は注出口のためにタンク１下部
側面に溶着したエルボである。 FIG. 1 shows a tank manufactured by the method of the present invention, where 1 is a tank body, 2 is an inlet of this tank body 1, and 3 is an elbow welded to the lower side of the tank 1 for an outlet.
上記タンクは中空成形法により成形され、その
バーテイングライン４は上記注入口２の中央を通
り、注入口２が成形時に成形されるようになつて
いる。 The tank is molded by a blow molding method, and its barting line 4 passes through the center of the injection port 2, so that the injection port 2 is formed during molding.
上記エルボ３はタンク本体１の中空成形時にイ
ンサートにより溶着されるものでり、エルボ素材
３ａの形状は第２図、第３図に示すようになつて
いて、台座５にＬ字状のパイプ部材６を突設した
形状となつている。そしてパイプ部材６の基端は
台座５により閉じられており、またこのパイプ部
材６の基端に対向する折り曲げ部上面には開放穴
７が設けてある。なおこのエルボ素材３ａは射出
成形によりあらかじめ成形しておく。 The elbow 3 is welded by an insert during hollow molding of the tank body 1, and the shape of the elbow material 3a is as shown in FIGS. 2 and 3, and an L-shaped pipe member is attached to the base 5. It is shaped like a protruding number 6. The base end of the pipe member 6 is closed by the pedestal 5, and an open hole 7 is provided in the upper surface of the bent portion opposite to the base end of the pipe member 6. Note that this elbow material 3a is molded in advance by injection molding.
第４図は上記タンクを成形するための金型を示
すもので、左右の金型８，９の各キヤビテイ８
ａ，８ｂのうち、エルボ３を装着する方のキヤビ
テイ８ａに、上記エルボ素材３ａを嵌合する穴１
０が設けてある。この穴１０の深さは、エルボ素
材３ａの台座５がキヤビテイ８ａ内に若干突出す
るような深さにしてある。 Figure 4 shows the mold for molding the tank, with cavities 8 of the left and right molds 8 and 9.
A hole 1 into which the elbow material 3a is fitted is inserted into the cavity 8a of which the elbow 3 is to be attached between a and 8b.
0 is set. The depth of this hole 10 is such that the base 5 of the elbow material 3a slightly protrudes into the cavity 8a.
しかして金型８のキヤビテイ８ａの穴１０にエ
ルボ素材３ａを嵌合してから両金型８，９にてパ
リスン１１をはさんで型締めし、ついで空気を吹
き込んで中空成形を行なう。かくすることによ
り、エルボ素材３ａの台座５が上記中空成形によ
りキヤビテイ８ａに沿つて膨張変形したパリスン
に第５図に示されるように溶着される。 After the elbow material 3a is fitted into the hole 10 of the cavity 8a of the mold 8, the parison 11 is clamped between the molds 8 and 9, and then air is blown into the mold to perform hollow molding. As a result, the pedestal 5 of the elbow material 3a is welded to the parison expanded and deformed along the cavity 8a by the above-mentioned hollow molding, as shown in FIG.
ついで、型開きして冷却後、エルボ素材３ａの
開放穴７よりドリルを挿入して第６に示すように
パイプ部材６の基端をタンク本体１内に開口す
る。 Then, after opening the mold and cooling it, a drill is inserted through the open hole 7 of the elbow material 3a to open the base end of the pipe member 6 into the tank body 1 as shown in No. 6.
その後第７図に示すように上記開放穴７に栓体
１２を溶着してこの開放穴７を閉じる。 Thereafter, as shown in FIG. 7, a plug 12 is welded to the open hole 7 to close the open hole 7.
なお上記実施例では１個のエルボ３を固着する
例を示したが本発明方法によれば第８図に示すよ
うな２個並設されたエルボ素材３a′を溶着するこ
ともでき、これにより複数個のエルボを１個の場
合と同様にタンク本体１に固着することができ
る。 Although the above embodiment shows an example in which one elbow 3 is fixed, according to the method of the present invention, it is also possible to weld two elbow materials 3a' arranged side by side as shown in FIG. A plurality of elbows can be fixed to the tank body 1 in the same way as one elbow.
本発明は以上のようになり、タンク本体１を中
空成形するキヤビテイ８ａに設けた穴１０内に、
基端が台座５にて閉じられ、かつこの基端に対向
する折り曲げ部に開放穴７を有するエルボ素材３
ａを、その台座５をキヤビテイ８ａ側に臨ませて
嵌合し、その後上記キヤビテイ８ａに沿つてパリ
スン１１を中空成形法により膨張成形して、上記
エルボ素材３ａの台座５を中空成形と同時にタン
ク本体１に溶着し、ついでエルボ素材３ａの開放
穴７よりパイプ部材６の基端を穿孔し、その後上
記開放穴７を栓体１２にて閉じるようにしたか
ら、タンクの中空成形時に、これと同時にエルボ
を溶着することができて、従来のような圧着によ
るタンクの変形が防止できると共に、位置決めを
考慮することなく所定の位置に精確にエルボを溶
着することができる。 The present invention is as described above, and in the hole 10 provided in the cavity 8a in which the tank body 1 is hollow-molded,
An elbow material 3 whose base end is closed by a pedestal 5 and has an open hole 7 at a bent portion opposite to the base end.
A is fitted with its pedestal 5 facing the cavity 8a side, and then the parison 11 is expansion-molded along the cavity 8a by blow molding, and the pedestal 5 of the elbow material 3a is simultaneously blow-molded into the tank. The base end of the pipe member 6 is welded to the main body 1, and then the base end of the pipe member 6 is bored through the open hole 7 of the elbow material 3a, and the open hole 7 is then closed with the plug body 12. Since the elbow can be welded at the same time, it is possible to prevent deformation of the tank due to conventional pressure bonding, and it is also possible to weld the elbow accurately at a predetermined position without considering positioning.
第１図は本発明方法にて成形されるタンクを示
す斜視図、第２図はエルボ素材の縦断側面図、第
３図はその正面図、第４図は成形金型の断面図、
第５図から第７図は作用説明図、第８図はエルボ
素材の他例を示す斜視図である。
１はタンク本体、３ａはエルボ素材、５は台
座、７は開放穴、８ａはキヤビテイ、１０は穴、
１２は栓体。
Fig. 1 is a perspective view showing a tank molded by the method of the present invention, Fig. 2 is a vertical side view of the elbow material, Fig. 3 is its front view, and Fig. 4 is a sectional view of the molding die.
5 to 7 are action explanatory views, and FIG. 8 is a perspective view showing another example of the elbow material. 1 is the tank body, 3a is the elbow material, 5 is the pedestal, 7 is the open hole, 8a is the cavity, 10 is the hole,
12 is the plug body.
Claims (1)
に設けた穴１０内に、基端が台座５にて閉じら
れ、かつこの基端に対向する折り曲げ部に開放穴
７を有するエルボが素材３ａを、その台座５をキ
ヤビテイ８ａ側に臨ませて嵌合し、その後上記キ
ヤビテイ８ａに沿つてパリスン１１を中空成形法
により膨張成形して、上記エルボ素材３ａの台座
５を中空成形と同時にタンク本体１に溶着し、つ
いでエルボ素材３ａの開放穴７よりパイプ部材６
の基端を穿孔し、その後上記開放穴７を栓体１２
にて閉じるようにしたことを特徴とするエルボ付
きタンクの製造方法。1 Cavity 8a for hollow-molding the tank body 1
An elbow whose base end is closed by a pedestal 5 and has an open hole 7 at a bent portion opposite to the base end holds the material 3a in a hole 10 provided in the hole 10, with the pedestal 5 facing the cavity 8a side. After fitting, the parison 11 is expansion-molded along the cavity 8a using a blow molding method, the pedestal 5 of the elbow material 3a is welded to the tank body 1 at the same time as the blow molding, and then the open hole 7 of the elbow material 3a is More pipe member 6
and then the open hole 7 is inserted into the plug body 12.
A method for manufacturing a tank with an elbow, characterized in that the tank is closed at a point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58120405A JPS6013521A (en) | 1983-07-04 | 1983-07-04 | Preparation of tank with elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58120405A JPS6013521A (en) | 1983-07-04 | 1983-07-04 | Preparation of tank with elbow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6013521A JPS6013521A (en) | 1985-01-24 |
| JPH0352335B2 true JPH0352335B2 (en) | 1991-08-09 |
Family
ID=14785397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58120405A Granted JPS6013521A (en) | 1983-07-04 | 1983-07-04 | Preparation of tank with elbow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013521A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6456532A (en) * | 1987-08-28 | 1989-03-03 | Excel Corp | Structure of additional part of hollow molded product with additional part |
-
1983
- 1983-07-04 JP JP58120405A patent/JPS6013521A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6013521A (en) | 1985-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3919368A (en) | Simplified process and apparatus for the production of cups from a foamed thermoplastic sheet | |
| RU2378116C1 (en) | Method of fabricating plastic hollow body and plastic vessel | |
| JPS59152822A (en) | Blow molded item with cylindrical anchoring section and manuacture thereof | |
| JPH0352335B2 (en) | ||
| JPH07205193A (en) | Manufacturing method of pipe with socket | |
| JP3078568B2 (en) | Method and apparatus for manufacturing container provided with connecting member | |
| JP3327442B2 (en) | Manufacturing method of fuel filler pipe | |
| JPS6326690B2 (en) | ||
| JPH08252872A (en) | Method for manufacturing hollow resin molded product | |
| JPS5837144B2 (en) | Netsukasoseijiyuushitankunoseizohouhou | |
| JPH08183061A (en) | Hollow product made of synthetic resin by injection molding method and manufacturing method thereof | |
| JPH04179528A (en) | Manufacture of fuel tank made of resin | |
| CA1151565A (en) | Container and method of making same | |
| JP3640269B2 (en) | Method for manufacturing resin hollow body with cylindrical member | |
| JP2000309030A (en) | Hollow body products made of synthetic resin | |
| JP4093329B2 (en) | Cylindrical molding, molding method thereof and molding die | |
| JPS6233060B2 (en) | ||
| JPS5837618Y2 (en) | Molding equipment for foam moldings | |
| JPS6313819B2 (en) | ||
| JPH0740358A (en) | Method for manufacturing foamed resin composite molded body | |
| JPH0645179B2 (en) | Manufacturing method of synthetic resin fuel tank | |
| JP3220479B2 (en) | Manufacturing method of hollow molded product with flange | |
| JPH01247134A (en) | Blow molding method | |
| JPS5810212B2 (en) | Seizou Hohou | |
| JPS5850862B2 (en) | Parison cutting device in blow molding machine |