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JPS63237918A - Hollow vessel and its molding method - Google Patents

Hollow vessel and its molding method

Info

Publication number
JPS63237918A
JPS63237918A JP62073197A JP7319787A JPS63237918A JP S63237918 A JPS63237918 A JP S63237918A JP 62073197 A JP62073197 A JP 62073197A JP 7319787 A JP7319787 A JP 7319787A JP S63237918 A JPS63237918 A JP S63237918A
Authority
JP
Japan
Prior art keywords
female molds
heater
joint
female
container
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.)
Pending
Application number
JP62073197A
Other languages
Japanese (ja)
Inventor
Yasuo Hirokane
広兼　泰雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DETSUKU KK
Original Assignee
DETSUKU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DETSUKU KK filed Critical DETSUKU KK
Priority to JP62073197A priority Critical patent/JPS63237918A/en
Publication of JPS63237918A publication Critical patent/JPS63237918A/en
Pending legal-status Critical Current

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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C2045/0072—Joining parts moulded in separate cavities the parts to be joined being moulded in a stack mould
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C2045/0074—Joining parts moulded in separate cavities inserting a heating tool inside the mould
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7172—Fuel tanks, jerry cans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To manufacture a thick vessel which is durable, free from generation of a crack by a method wherein monolithic molding of the fringe of a joint part of both of two split bodies of the vessel molded beforehand is performed. CONSTITUTION:Split bodies 15, 16 of a vessel possessing joint flange parts 17, 18 along the fringes of a joint part are molded respectively by injecting synthetic resin. A male mold 2 is taken out by separating both female molds 3, 4 from each other. Then a heater 13 is inserted between both the female molds 3, 4, the confronting surfaces 19, 20 of the joint flange parts 17, 18 are heated by approaching both the female molds 3, 4 to the heater 13 and made into a molten state. Then both the female molds 3, 4 are approached with each other by taking out the heater 13, press contacting of both the joint flanges 17, 18 is performed by both the female molds 3, 4, both the joint flanges 17, 18 are unified each other through solvent welding and a hollow vessel T is molded.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、フューエルタンク等の中空容器及びその成形
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hollow container such as a fuel tank and a method for molding the same.

（従来の技術） 従来、ブロー成形により、内部に空気圧を吹き込んで中
空容器を製作していた。(Prior Art) Conventionally, hollow containers have been manufactured by blow molding by blowing air pressure into the interior.

（発明が解決しようとする問題点） しかしながら、ブロー成形によれば、接合される外周部
等の各部の食切りのロスが多く、また各部の肉厚は計画
的に設定することが困難で、従って中空容器の用途に適
した強度を得るためには必要以上の成形材料を消費して
いた。(Problems to be Solved by the Invention) However, according to blow molding, there is a lot of loss in cutting off parts such as the outer periphery to be joined, and it is difficult to set the thickness of each part in a planned manner. Therefore, more molding material than necessary is consumed in order to obtain strength suitable for use as a hollow container.

そこで、本発明は上記問題点に鑑み、計画的な肉厚の耐
久性のよい中空容器を提供すると共に、食切りロスの無
い中空容器の成形方法を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a hollow container with a well-planned wall thickness and good durability, and also to provide a method for molding a hollow container that eliminates food waste.

（問題点を解決するための手段） その中空容器Ｔの技術的構成は、射出成形されてなる容
器分割体１５．１６の相互の接合部周縁に沿って一体形
成された各接合フランジ部１７．１８の対向面１９．２
０が互いに溶着一体化されてなる点にある。(Means for Solving the Problems) The technical configuration of the hollow container T is that each joint flange portion 17. 18 facing surface 19.2
0 are integrally welded together.

また、その中空容器Ｔの成形方法の技術的構成は、中間
のオス型２と、オス型２両側のメス型３゜４とによって
形成された両側のキャビティ７．８に夫々合成樹脂を射
出して、接合部周縁に沿って接合フランジ部１７．１８
を有する容器分割体１５．１６を夫々成形した後、両メ
ス型３．４を離反させてオス型２を抜き出し、その後、
両メス型３，４間にヒーター１３を挿入し、両メス型３
，４をヒーター１３に接近させて接合フランジ部１７．
１８対向面１９．２０を加熱して溶融状とし、その後、
ヒーター１３を抜き出して両メス型３，４を互いに接近
させ、両接合フランジ部１７．１８をメス型３．４によ
り圧着して両接合フランジ部１７．１８を互いに溶着一
体化させて中空容器Ｔを成形する点にある。The technical structure of the method for molding the hollow container T is to inject synthetic resin into cavities 7 and 8 on both sides formed by an intermediate male mold 2 and female molds 3 and 4 on both sides of the male mold 2. Then, the joint flange portions 17 and 18 are formed along the peripheral edge of the joint portion.
After molding the container division bodies 15 and 16 having the following shapes, both the female molds 3 and 4 are separated and the male mold 2 is extracted, and then,
Insert the heater 13 between both female molds 3 and 4, and
, 4 close to the heater 13 to connect the joint flange portion 17 .
18 Opposing surface 19.20 is heated to a molten state, and then,
The heater 13 is pulled out, both female molds 3 and 4 are brought close to each other, and both joining flange parts 17.18 are crimped by the female mold 3.4, and both joining flange parts 17.18 are welded and integrated with each other to form a hollow container T. The point is to form the .

（作　用） 本発明によれば、射出成形により成形された容器分割体
１５．１６の周縁の接合フランジ部１７．１８を溶着一
体化したものであり、寸法精度がよく、各部に要求され
る強度に応じて計画された肉厚の中空容器Ｔが得られ、
クランク等の損傷発生が有効に防止でき、耐久性及び保
安性に優れる。(Function) According to the present invention, the joining flange portions 17.18 at the peripheral edges of the container divided bodies 15.16 molded by injection molding are integrated by welding, and the dimensional accuracy is good and the required parts are met. A hollow container T with a wall thickness planned according to the strength is obtained,
It can effectively prevent damage to the crank, etc., and has excellent durability and safety.

また、オス型２とメス型３．４とによって接合部周縁に
沿って接合フランジ部１７．１８を有する容器分割体１
５．１６を夫々、射出成形した後、接合フランジ部１７
．１８対向面１９．２０を加熱して溶融状とし、互いに
圧着して溶着一体化させて中空容器Ｔを成形するため、
食切りロスが無い。そして、射出成形後の冷えていない
接合フランジ部１７．１８対向面１９、２０をヒーター
１３で加熱するため、効率がよい。Further, the container divided body 1 has a joint flange portion 17.18 along the periphery of the joint portion by the male mold 2 and the female mold 3.4.
After injection molding 5.16 respectively, the joining flange part 17
．． 18 to form a hollow container T by heating the opposing surfaces 19 and 20 to melt them and press them together to weld and integrate them.
No food waste. Furthermore, since the opposed surfaces 19 and 20 of the joining flange portions 17 and 18, which have not yet cooled down after injection molding, are heated by the heater 13, efficiency is high.

（実施例） 以下、本発明の実施例を図面に基づいて説明すると、第
１図乃至第６図において、１は射出成形型で、中央のオ
ス型２とオス型２両側の左右１対のメス型３，４とを備
え、各メス型３，４の外側面側には射出装置５，６が夫
々連結されている。(Embodiment) Hereinafter, embodiments of the present invention will be described based on the drawings. In Figs. Female molds 3 and 4 are provided, and injection devices 5 and 6 are connected to the outer surfaces of the female molds 3 and 4, respectively.

第１図に示される如（、オス型２を挟んで両側のメス型
３．４が閉じられた際には、オス型２と各メス型３，４
とによって夫々独立したキャビティ７゜８が形成され、
射出装置５．６からキャビティ７．８に連通ずるホット
ランナ９．１０が備えられている。As shown in Fig. 1, when the female molds 3 and 4 on both sides of the male mold 2 are closed, the male mold 2
Independent cavities 7°8 are formed by
A hot runner 9.10 is provided which communicates from the injection device 5.6 to the cavity 7.8.

また各メス型３，４にはキャビティ７．８に面する真空
吸着バルブＩＬ　１２が備えられている。Each female mold 3, 4 is also equipped with a vacuum suction valve IL 12 facing the cavity 7.8.

１３はヒーターで、メス型３，４間に挿脱自在とされて
いる。13 is a heater, which can be inserted and removed between the female molds 3 and 4.

次にこの射出成形型１による中空容器Ｔの成形方法を工
程順に説明すると、第１図の射出成形工程、第２図のオ
ス型２離型及びヒーター１３挿入工程、第３図の接近加
熱工程、第４図のヒーター１３抜き出し工程、第５図の
圧着接合工程、第６図の成形品取出し工程とからなり、
最初の射出成形工程においては、オス型２を挟んで両側
のメス型３゜４が閉じられ、各射出装置５，６より溶融
熱可塑性樹脂がホットランナ９，１０を通じてキャビテ
ィ７．８内に射出され、所謂、２分割状とされた容器分
割体１５．１６が夫々成形される。そして各容器分割体
１５、１６の接合部にはその周縁に沿って外方に突出す
る接合フランジ部１７．１８が一体形成されると共に、
接合フランジ部１７．１８の互いに対向する対向面１９
．２０に周方向環状の突条２Ｌ　２２が一体形成されて
いる。Next, the method for molding the hollow container T using this injection mold 1 will be explained in order of steps: the injection molding process shown in FIG. 1, the male mold 2 mold release and heater 13 insertion process shown in FIG. 2, and the approach heating process shown in FIG. , the heater 13 extraction step shown in FIG. 4, the pressure bonding step shown in FIG. 5, and the molded product removal step shown in FIG.
In the first injection molding process, the female molds 3 and 4 on both sides of the male mold 2 are closed, and molten thermoplastic resin is injected from each injection device 5 and 6 into the cavity 7.8 through hot runners 9 and 10. Then, so-called two-part container bodies 15 and 16 are respectively formed. A joint flange portion 17, 18 is integrally formed at the joint portion of each container divided body 15, 16 and projects outward along the periphery thereof.
Mutually opposing opposing surfaces 19 of the joining flange portions 17,18
．． A circumferential annular protrusion 2L 22 is integrally formed on 20.

次に、オス型２離型及びヒーター１３挿入工程において
は、両メス型３，４が互いに側方に離反され、オス型２
を中央より抜き出すと共に、或いはその直後、両メス型
３，４間にヒーター１３を挿入する。Next, in the process of releasing the male mold 2 and inserting the heater 13, both the female molds 3 and 4 are laterally separated from each other, and the male mold 2
The heater 13 is inserted between the female molds 3 and 4 at the same time as the mold is pulled out from the center, or immediately after that.

この際、各容器分割体１５．１６は各真空吸着バルブ１
１、１２によってメス型３，４に夫々吸着保持されてい
る。At this time, each container divided body 15, 16 is connected to each vacuum suction valve 1.
The female molds 3 and 4 are sucked and held by the female molds 1 and 12, respectively.

その後、接近加熱工程により、両メス型３，４をヒータ
ー１３に接近させ、ヒーター１３により接合フランジ部
１７．１８の対向面１９．２０を加熱し、対向面１９、
２０表層部及び突条２１２２を溶融状とする。Thereafter, in an approach heating step, both female molds 3 and 4 are brought close to the heater 13, and the opposing surfaces 19.20 of the joining flange portions 17.18 are heated by the heater 13, and the opposing surfaces 19,
20 surface layer portion and the protrusion 2122 are melted.

次に、ヒーター１３抜き出し工程によりヒーター１３を
メス型３，４間より抜き出し、圧着接合工程により両メ
ス型３．４を互いに接近させ、両接合フランジ部１７．
１８の突条２１．２２部分を当接させると共に、さらに
両メス型３．４を接近させ、両接合フランジ部１７．１
８をメス型３，４により押圧して圧着させ、ここに両接
合フランジ部１７．１８が互いに溶着一体化した中空容
器Ｔが成形されることとなる。Next, the heater 13 is extracted from between the female molds 3 and 4 in a heater 13 extraction process, and both female molds 3.4 are brought close to each other in a pressure bonding process, and both joining flange portions 17.
The protrusions 21 and 22 of 18 are brought into contact with each other, and both female molds 3.4 are brought closer to each other, and both joining flanges 17.1 are brought into contact with each other.
8 are pressed and crimped by the female molds 3 and 4, thereby forming a hollow container T in which both the joining flange parts 17 and 18 are welded and integrated with each other.

そして、成形品取出し工程により、両メス型３゜４を離
反させ、真空吸着バルブ１１．１２による吸着を停止、
或いはエアーを吹出すことにより、中空容器Ｔをメス型
３，４より取出せばよい。Then, in the process of taking out the molded product, both female molds 3°4 are separated, and suction by the vacuum suction valves 11 and 12 is stopped.
Alternatively, the hollow container T may be taken out from the female molds 3 and 4 by blowing out air.

ここに１サイクルが終了することとなる。One cycle ends here.

以上の成形方法によれば、ブロー成形による方法と比較
して、食切りロスが無い利点がある。また寸法精度もよ
（、計画的な肉厚の中空容器Ｔが得られる。さらに、形
状安定性に優れると共にデザインも比較的自由に設計で
きる。また成形サイクルタイムも短かく、量産に適する
利点がある。According to the above molding method, there is an advantage that there is no cutting loss compared to the blow molding method. In addition, the dimensional accuracy is good (a hollow container T with a well-planned wall thickness can be obtained. Furthermore, it has excellent shape stability and can be designed relatively freely. Also, the molding cycle time is short, making it suitable for mass production. be.

さらにバッフルプレート構造が容易となり、インサート
成形部の強度も大とでき、成形材料の選定範囲も広（な
る為ガスバリヤ対策も容易となる。Furthermore, the baffle plate structure is easier, the strength of the insert molded part can be increased, and the selection range of molding materials is wider (this makes gas barrier measures easier.

また、射出成形直後の冷えていない容器分割体１５．１
６の接合フランジ部１７．１８対向面１９．２０をヒー
ター１３で加熱する方法であるため、効率がよい。In addition, the uncooled container segment 15.1 immediately after injection molding
Since this method heats the opposing surfaces 19, 20 of the joint flange portions 17, 18 of 6 with the heater 13, it is efficient.

そして、成形された中空容器Ｔは計画的な肉厚が均一と
なるため、温度変化や衝撃等によるクラック等の損傷発
生が有効に防止でき、耐久性及び保安性の向上が図れる
。Since the formed hollow container T has a uniform planned wall thickness, damage such as cracks due to temperature changes, impacts, etc. can be effectively prevented, and durability and safety can be improved.

尚、上記実施例において、接合フランジ部１７゜１８の
対向面１９．２０に突条２１．２２を備えたものを示し
ているが、突条２１．２２を有しない構造であってもよ
い、また図示省略しているが、中空容器Ｔには適宜位置
に注入口が形成されている。In addition, in the above embodiment, the facing surface 19.20 of the joint flange portion 17.degree. Although not shown, the hollow container T is provided with an injection port at an appropriate position.

（発明の効果） 本発明の中空容器は射出成形されてなる容器分割体の相
互の接合部周縁に沿って一体形成された各接合フランジ
部の対向面が互いに溶着一体化されてなるものであり、
計画的な肉厚の容器が得られ、クラック等の損傷発生が
有効に防止でき、耐久性及び保安性に優れる。(Effects of the Invention) The hollow container of the present invention is formed by integrally welding the opposing surfaces of each joining flange portion integrally formed along the periphery of the mutual joining portion of the injection molded container segments. ,
A container with a well-planned wall thickness can be obtained, damage such as cracks can be effectively prevented, and the container is excellent in durability and safety.

また中間のオス型と、オス型両側のメス型とによって形
成された両側のキャビティに夫々合成樹脂を射出して、
接合部周縁に沿って接合フランジ部を有する容器分割体
を夫々成形した後、両メス型を離反させてオス型を抜き
出し、その後、両メス型間にヒーターを挿入し、両メス
型をヒーターに接近させて接合フランジ部対向面を加熱
して溶融状とし、その後、ヒーターを抜き出して両メス
型を互いに接近させ、両接合フランジ部をメス型により
圧着して両接合フランジ部を互いに溶着一体化させて中
空容器を成形するものであり、８切りロスが無くなると
いう利点がある。またヒーターによる加熱効率もよいと
いう利点がある。In addition, synthetic resin is injected into the cavities on both sides formed by the middle male mold and the female molds on both sides of the male mold, respectively.
After molding each container segment having a joint flange along the periphery of the joint, both female molds are separated and the male mold is extracted, and then a heater is inserted between both female molds, and both female molds are used as heaters. Bring them close together and heat the facing surfaces of the joint flange parts to melt them. Then, pull out the heater and bring both female molds close to each other. Both joint flange parts are crimped with the female mold to weld and integrate both joint flange parts together. This method has the advantage of eliminating 8-cut loss. Another advantage is that the heater has good heating efficiency.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を示し、第１図は射出成形工程の
断面説明図、第２図はオス型離型及びヒーター挿入工程
の断面説明図、第３図は接近加熱工程の断面説明図、第
４図はヒーター抜き出し工程の断面説明図、第５図は圧
着接合工程の断面説明図、第６図は成形品取出し工程の
断面説明図である。 １・・・射出成形型、２・・・オス型、３．４・・・メ
ス型、７．８・・・キャビティ、１３・・・ヒーター、
１５．１’６・・・容器分割体、１７．１８・・・接合
フランジ部、１９．２０・・・対向面。The drawings show embodiments of the present invention; FIG. 1 is a cross-sectional explanatory diagram of the injection molding process, FIG. 2 is a cross-sectional explanatory diagram of the male mold release and heater insertion process, and FIG. 3 is a cross-sectional explanatory diagram of the proximity heating process. , FIG. 4 is a cross-sectional explanatory view of the heater extraction process, FIG. 5 is a cross-sectional explanatory view of the pressure bonding process, and FIG. 6 is a cross-sectional explanatory view of the molded product extraction process. 1... Injection mold, 2... Male type, 3.4... Female type, 7.8... Cavity, 13... Heater,
15.1'6... Container division body, 17.18... Joining flange portion, 19.20... Opposing surface.

Claims (2)

【特許請求の範囲】[Claims] （１）射出成形されてなる容器分割体１５、１６の相互
の接合部周縁に沿って一体形成された各接合フランジ部
１７、１８の対向面１９、２０が互いに溶着一体化され
てなることを特徴とする中空容器。(1) The facing surfaces 19 and 20 of the joint flange parts 17 and 18 integrally formed along the periphery of the mutual joint of the injection-molded container division bodies 15 and 16 are integrally welded to each other. Features a hollow container. （２）中間のオス型２と、オス型２両側のメス型３、４
とによって形成された両側のキャビティ７、８に夫々合
成樹脂を射出して、接合部周縁に沿って接合フランジ部
１７、１８を有する容器分割体１５、１６を夫々成形し
た後、両メス型３、４を離反させてオス型２を抜き出し
、その後、両メス型３、４間にヒーター１３を挿入し、
両メス型３、４をヒーター１３に接近させて接合フラン
ジ部１７、１８対向面１９、２０を加熱して溶融状とし
、その後、ヒーター１３を抜き出して両メス型３、４を
互いに接近させ、両接合フランジ部１７、１８をメス型
３、４により圧着して両接合フランジ部１７、１８を互
いに溶着一体化させて中空容器Ｔを成形することを特徴
とする中空容器の成形方法。(2) Male mold 2 in the middle and female molds 3 and 4 on both sides of male mold 2
Synthetic resin is injected into the cavities 7 and 8 on both sides formed by the molds 3 and 3 to respectively mold container segments 15 and 16 having joint flanges 17 and 18 along the periphery of the joint. , 4 are separated and the male mold 2 is extracted, and then the heater 13 is inserted between both the female molds 3 and 4.
Both the female molds 3 and 4 are brought close to the heater 13 to heat the opposing surfaces 19 and 20 of the joint flanges 17 and 18 to melt them, and then the heater 13 is taken out and both the female molds 3 and 4 are brought close to each other. A method for molding a hollow container, characterized in that a hollow container T is formed by crimping both joining flange parts 17 and 18 with female dies 3 and 4 and welding and integrating both joining flange parts 17 and 18 to each other.
JP62073197A 1987-03-26 1987-03-26 Hollow vessel and its molding method Pending JPS63237918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62073197A JPS63237918A (en) 1987-03-26 1987-03-26 Hollow vessel and its molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62073197A JPS63237918A (en) 1987-03-26 1987-03-26 Hollow vessel and its molding method

Publications (1)

Publication Number Publication Date
JPS63237918A true JPS63237918A (en) 1988-10-04

Family

ID=13511177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62073197A Pending JPS63237918A (en) 1987-03-26 1987-03-26 Hollow vessel and its molding method

Country Status (1)

Country Link
JP (1) JPS63237918A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038316A1 (en) * 1995-05-30 1996-12-05 Shell Internationale Research Maatschappij B.V. A fuel tank and a process for producing the fuel tank
EP0755774A3 (en) * 1995-07-28 1997-02-05 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material
US5819806A (en) * 1993-12-29 1998-10-13 Daikyo Co., Ltd. Channel housing with curving channels, and a manufacturing method therefor
EP1591227A1 (en) * 2004-04-30 2005-11-02 The Japan Steel Works, Ltd. Method of molding a hollow molded article, hollow molded article, and apparatus for manufacturing the same
EP1642703A1 (en) * 2004-09-30 2006-04-05 Toyoda Gosei Co., Ltd. Resin composition, resin molded article and production method thereof
JP2006315415A (en) * 2006-07-24 2006-11-24 Japan Steel Works Ltd:The Hollow molded product
JP2009279910A (en) * 2008-05-26 2009-12-03 Fukuoka Institute Of Technology Welding apparatus and welding method of thermoplastic resin material
JP2017132257A (en) * 2011-04-11 2017-08-03 ローディア オペレーションズ Method for producing tank having high barrier properties on fluid
US10220553B2 (en) * 2016-10-20 2019-03-05 Bose Corporation Method of making an item and item
JP2019155775A (en) * 2018-03-14 2019-09-19 株式会社日本製鋼所 Method for molding hollow molded product, and molding device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5819806A (en) * 1993-12-29 1998-10-13 Daikyo Co., Ltd. Channel housing with curving channels, and a manufacturing method therefor
US5941284A (en) * 1993-12-29 1999-08-24 Daikyo Co., Ltd. Channel housing with curving channels, and a manufacturing method therefor
WO1996038316A1 (en) * 1995-05-30 1996-12-05 Shell Internationale Research Maatschappij B.V. A fuel tank and a process for producing the fuel tank
EP0755774A3 (en) * 1995-07-28 1997-02-05 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material
US7575704B2 (en) 2004-04-30 2009-08-18 The Japan Steel Works, Ltd. Method of molding a hollow article
EP1591227A1 (en) * 2004-04-30 2005-11-02 The Japan Steel Works, Ltd. Method of molding a hollow molded article, hollow molded article, and apparatus for manufacturing the same
US7824173B2 (en) 2004-04-30 2010-11-02 The Japan Steel Works, Ltd. Apparatus for molding a hollow molded article
CN100377862C (en) * 2004-04-30 2008-04-02 株式会社日本制钢所 Method of molding hollow molded article, and apparatus for producing the article
US7608647B2 (en) 2004-09-30 2009-10-27 Toyoda Gosei Co., Ltd. Resin composition, resin molded article and production method thereof
EP1642703A1 (en) * 2004-09-30 2006-04-05 Toyoda Gosei Co., Ltd. Resin composition, resin molded article and production method thereof
JP2006315415A (en) * 2006-07-24 2006-11-24 Japan Steel Works Ltd:The Hollow molded product
JP2009279910A (en) * 2008-05-26 2009-12-03 Fukuoka Institute Of Technology Welding apparatus and welding method of thermoplastic resin material
JP2017132257A (en) * 2011-04-11 2017-08-03 ローディア オペレーションズ Method for producing tank having high barrier properties on fluid
US10220553B2 (en) * 2016-10-20 2019-03-05 Bose Corporation Method of making an item and item
JP2019155775A (en) * 2018-03-14 2019-09-19 株式会社日本製鋼所 Method for molding hollow molded product, and molding device

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