JP2005522353A - プリフォームを処理する方法および装置 - Google Patents
プリフォームを処理する方法および装置 Download PDFInfo
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- JP2005522353A JP2005522353A JP2003583717A JP2003583717A JP2005522353A JP 2005522353 A JP2005522353 A JP 2005522353A JP 2003583717 A JP2003583717 A JP 2003583717A JP 2003583717 A JP2003583717 A JP 2003583717A JP 2005522353 A JP2005522353 A JP 2005522353A
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- preform
- negative pressure
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- porous material
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000011148 porous material Substances 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000004020 conductor Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 13
- 239000003570 air Substances 0.000 description 7
- 238000000071 blow moulding Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 241000282537 Mandrillus sphinx Species 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- -1 polyethylene phthalate Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
本発明のさらなる目的は、簡単な機械的設計によって、装置の作成コストを低減して、プリフォームを処理しやすくする、最初に記載した装置を構築することである。
プリフォームを射出成形によって製作し、次いで負圧の作用でプリフォームを変形させることによって、一連の利点が得られる。一利点は、負の外圧によってプリフォームを冷却スリーブの壁に対して引き寄せることができ、それによってプリフォームと冷却スリーブの壁との接触が冷却プロセス全体にわたって維持されることである。
負圧がプリフォームの内側に作用するようにすることも可能である。
好ましい実施形態では、プリフォームが冷却装置内で負圧を受ける。
負圧をプリフォームに多孔性材料を通して加えることによって、負圧の供給を低コストで行うことができる。
負圧を一様に分配するには、負圧を多孔性材料に負圧チャネルを介して加えることを提案する。
プリフォームが加圧媒体によって一時的に作用を受けることから、プロセスの順序に追加の衝撃を生じさせることができる。
したがって、改良型制御手段を提供して、負圧をプリフォームに局所の多孔性インサートを介して加える。
材料の局所的に限定された変形は、局所的負圧をマンドリルからプリフォームに加えることによって支持される。
プリフォームの変形を、2段階の射出ブローのプロセスを実行する際に中間工程として行うことも可能である。
十分な機械的安定性を提供するには、フレームによって定位置に保持されたインサートとして多孔性材料を構成することを提案する。
さらなる設計の実施形態では、少なくとも1つの冷却チャネルがフレームの領域内に配置される。
多孔性材料のインサートに対してプリフォームを圧力で支えて移動させることができるようにするには、負圧チャネルをインサート内の空洞内に延長することを提案する。
マンドレルの領域の少なくとも一部をシールで覆うことによって、圧力比の作用を目標の局所に与えることができる。
プリフォームの再成形のさらなる変形形態は、分配室を画定する少なくとも1つの膜が設けられたマンドレルを有する。
特に良好な熱伝導性は、アルミニウムを多孔性金属として使用することによって得られる。
さらなる実施形態は、多孔性材料として焼結金属を有する。
METAPOR(登録商標)PORTEC AG、
「ultraporex(登録商標)」ultarfilter (sic) international AG、
「PorceraxII(登録商標)」International Mold Steel Inc.、
「KuporeX(商標)」KUBOTA Corporation。
図面は本発明の典型的な実施形態を概略的に示すものである。
負圧を加えた後、図1のプリフォーム(1)を図8で示したプリフォームに成形する。具体的には、図8で理解されるように、周囲方向に変形させることによって壁の厚さを変化させることができる。図8のプリフォーム構成は、楕円形のボトルの製作に特に適している。
負圧と超過圧力をインサート(3)に交互に負荷する組合せで、材料の清掃を簡単に行うことができ、プリフォーム(1)が定位置になくても、加圧媒体を与えて不純物を吹き払うことができる。マンドレル(22)を加圧することによって、プリフォーム(1)をマンドレル(22)から分離させることもできる。マンドレル(22)と多孔性材料のインサート(3)を組合せて使用する際に、負圧を外部に加えることによって、プリフォーム(1)をマンドレル(22)から簡単に分離させることができる。
Claims (33)
- 熱可塑性プラスチックから作成され、容器内にブロー成形されるプリフォームを処理するプロセスであって、前記プリフォームが射出成形技術を使用して射出成形工具内で製作され、前記射出成形工具から取り出した後に変形され、プリフォーム(1)が負圧の作用によって変形されることを特徴とするプロセス。
- 前記負圧が前記プリフォーム(1)の外部に作用することを特徴とする、請求項1に記載のプロセス。
- 前記負圧が前記プリフォーム(1)の内部に作用することを特徴とする、請求項1に記載のプロセス。
- 負圧が、冷却装置の内部で前記プリフォーム(1)に加えられることを特徴とする、請求項1乃至3のいずれか1項に記載のプロセス。
- 負圧が、多孔性材料を介して前記プリフォーム(1)に加えられることを特徴とする、請求項1乃至4のいずれか1項に記載のプロセス。
- 前記負圧が、負圧チャネル(10)を介して前記多孔性材料に加えられることを特徴とする、請求項1乃至5のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)に、加圧媒体が局所的に当てられることを特徴とする、請求項1乃至6のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)が、加圧媒体によって熱を加えられることを特徴とする、請求項1乃至7のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)への負の加圧が、局所の多孔性インサート(3)を介して生じることを特徴とする、請求項1乃至8のいずれか1項に記載のプロセス。
- 局所多孔性インサート(3)が、制御弁(19)によって圧力源(20)および1つまたは複数の負圧源(21)に一時的にかつ制御可能に連結されることを特徴とする、請求項1乃至9のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)の変形が、多孔性マンドレル(22)を使用して行われることを特徴とする、請求項1乃至10のいずれか1項に記載のプロセス。
- 局所の負圧が、前記マンドレル(22)から前記プリフォーム(1)に加えられることを特徴とする、請求項1乃至11のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)の前記変形が、単一段階の射出ブロー・プロセスの中間工程として行われることを特徴とする、請求項1乃至12のいずれか1項に記載のプロセス。
- 前記プリフォーム(1)の前記変形が、2段階の射出ブロー・プロセスの中間工程として行われることを特徴とする、請求項1乃至12のいずれか1項に記載のプロセス。
- 熱可塑性プラスチックからの、容器内にブロー成形され、射出成形技術を使用して射出成形工具内で製作されたプリフォームを処理する装置であって、前記プリフォームは、その領域の少なくとも一部が冷却装置によって作用を受け、前記冷却装置は、その領域の少なくとも一部が多孔性材料であることを特徴とする装置。
- 前記多孔性材料が、冷却スリーブの領域内に配置されることを特徴とする、請求項15に記載の装置。
- 前記多孔性材料が、フレーム(2)によって定位置に保持されるインサート(3)として形成されることを特徴とする、請求項15または16に記載の装置。
- 少なくとも1つの負圧チャネル(10)が、前記インサート(3)の領域内に配置されることを特徴とする、請求項15乃至17のいずれか1項に記載の装置。
- 少なくとも1つの冷却チャネル(11)が、前記インサート(3)の領域内に配置されることを特徴とする、請求項15乃至18のいずれか1項に記載の装置。
- 少なくとも1つの冷却チャネル(11)が、前記フレーム(2)の領域内に配置されることを特徴とする、請求項15乃至18のいずれか1項に記載の装置。
- 前記インサート(3)は、その領域の少なくとも一部がシール(13)によって覆われることを特徴とする、請求項15乃至20のいずれか1項に記載の装置。
- 前記負圧チャネル(10)が、前記インサート(3)の空洞(14)の領域内に延在することを特徴とする、請求項15乃至21のいずれか1項に記載の装置。
- 前記インサート(3)に加圧媒体連結部(17)が設けられていることを特徴とする、請求項15乃至22のいずれか1項に記載の装置。
- 前記フレーム(2)が、多孔性材料で作成され互いに間隔を置いて配置された少なくとも2つのインサート(3)を有することを特徴とする、請求項15乃至23のいずれか1項に記載の装置。
- 前記別々の多孔性インサート(3)を圧力源(20)および1つまたは複数の負圧源(21)に制御可能に連結することができることを特徴とする、請求項15乃至24のいずれか1項に記載の装置。
- 前記インサート(3)を前記圧力源(20)および1つまたは複数の負圧源(21)に少なくとも1つの制御弁(19)によって連結することができることを特徴とする、請求項25に記載の装置。
- 前記マンドレル(22)は、その領域の少なくとも一部が多孔性材料で形成されることを特徴とする、請求項15乃至26のいずれか1項に記載の装置。
- 前記マンドレル(22)は、その領域の少なくとも一部がシール(24)によって覆われることを特徴とする、請求項15乃至27のいずれか1項に記載の装置。
- 前記マンドレル(22)は、その円形端部(25)の領域でシール(26)によって覆われることを特徴とする、請求項27または28に記載の装置。
- 前記マンドレル(22)に、分配室(28)を画定する少なくとも1つの膜(29)が設けられていることを特徴とする、請求項15乃至29のいずれか1項に記載の装置。
- 前記多孔性材料が熱伝導性材料から作成されることを特徴とする、請求項15乃至30のいずれか1項に記載の装置。
- 前記多孔性材料が、アルミニウム、鋼、または銅合金など多孔性金属であることを特徴とする、請求項31に記載の装置。
- 前記多孔性材料が焼成金属であることを特徴とする、請求項15乃至30のいずれか1項に記載の装置。
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DE2002115722 DE10215722B4 (de) | 2002-04-10 | 2002-04-10 | Verfahren und Vorrichtung zur Bearbeitung von Vorformlingen |
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- 2003-04-10 NZ NZ536313A patent/NZ536313A/en unknown
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- 2003-04-10 WO PCT/DE2003/001202 patent/WO2003086728A1/de active IP Right Grant
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- 2003-04-10 CA CA 2478874 patent/CA2478874C/en not_active Expired - Fee Related
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