JP2007024954A5 - - Google Patents

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Publication number
JP2007024954A5
JP2007024954A5 JP2005202997A JP2005202997A JP2007024954A5 JP 2007024954 A5 JP2007024954 A5 JP 2007024954A5 JP 2005202997 A JP2005202997 A JP 2005202997A JP 2005202997 A JP2005202997 A JP 2005202997A JP 2007024954 A5 JP2007024954 A5 JP 2007024954A5
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JP
Japan
Prior art keywords
preform
mold
stretching rod
manufacturing
seamless belt
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JP2005202997A
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Japanese (ja)
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JP2007024954A (en
JP4789523B2 (en
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Priority to JP2005202997A priority Critical patent/JP4789523B2/en
Priority claimed from JP2005202997A external-priority patent/JP4789523B2/en
Publication of JP2007024954A publication Critical patent/JP2007024954A/en
Publication of JP2007024954A5 publication Critical patent/JP2007024954A5/ja
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Publication of JP4789523B2 publication Critical patent/JP4789523B2/en
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Claims (7)

（１）ブロー用の金型内に配置した加熱した試験管型のプリフォームを、延伸棒を移動させて縦方向に延伸させると共に、該プリフォーム内に気体を流入させて該プリフォームを膨らませる工程と、(1) A heated test tube type preform placed in a blow mold is stretched in the longitudinal direction by moving a stretching rod, and a gas is allowed to flow into the preform to expand the preform. And the process
（２）該工程（１）によって該金型内に形成されたボトル状の成形物を該ブロー金型から取り出し、該成形物の口側部ならびに底側部を切断する工程と、を有している電子写真用シームレスベルトの製造方法であって、  (2) removing the bottle-shaped molded product formed in the mold by the step (1) from the blow mold and cutting the mouth side portion and the bottom side portion of the molded product. An electrophotographic seamless belt manufacturing method comprising:
該工程（１）における該プリフォーム内への気体の流入は、該プリフォームが該延伸棒に追従しながら膨らむように行うことを特徴とする電子写真用シームレスベルトの製造方法。  The method for producing a seamless belt for electrophotography, wherein the inflow of gas into the preform in the step (1) is performed such that the preform swells while following the stretching rod. 前記工程（１）における該延伸棒の移動を一定速度で行う請求項１に記載の製造方法。The manufacturing method according to claim 1, wherein the stretching rod is moved at a constant speed in the step (1). 前記工程（１）の前に、該プリフォームの縦方向での厚みの振れに応じて該プリフォームの縦方向での加熱状態を変化させる工程を有する請求項１または２に記載の製造方法。 The manufacturing method of Claim 1 or 2 which has the process of changing the heating state in the vertical direction of this preform according to the thickness fluctuation | variation in the vertical direction of this preform before the said process (1) . 熱可塑性樹脂組成物(a)から成形されたプリフォームを加熱し金型内で、所定の速度で移動する延伸棒を用いて延伸する工程と、延伸棒により延伸するプリフォーム内に、所定の圧力で気体を流入し金型内でプリフォームを膨らますことによってボトル状の成形物を得て、該ボトルの口側部(b)と底側部(c)を切断する工程とを含んでなる電子写真用シームレスベルトの製造方法において、
該延伸棒による延伸時に、該延伸棒の移動開始から所定の時間の経過と同時に該プリフォーム内に気体を流入する工程を含み、該気体の圧力が流入開始から設定最大圧力に達する時間が0.5秒以上であり、かつ
前記工程の延伸棒はモータ駆動によって移動する
ことを特徴とする電子写真用シームレスベルトの製造方法。 The preform molded from the thermoplastic resin composition (a) is heated and stretched using a stretching rod that moves at a predetermined speed in a mold, and the preform that is stretched by the stretching rod is A step of obtaining a bottle-like molded article by injecting a gas under pressure and expanding the preform in the mold, and cutting the mouth side (b) and the bottom side (c) of the bottle. In the method for producing a seamless belt for electrophotography,
A step of flowing a gas into the preform simultaneously with the elapse of a predetermined time from the start of the movement of the drawing rod during drawing by the drawing rod; The method for producing a seamless belt for electrophotography, characterized in that it is longer than a second, and the stretching rod of the step moves by motor drive. プリフォームを加熱する際の加熱手段は縦方向に３分割以上し、各々独立制御したヒータによるものである請求項４に記載の製造方法。 Manufacturing method of the heating means when heating the preform longitudinally divided into three or more, according to Der Ru請 Motomeko 4 by independently controlled heaters. 前記モータがサーボモータである請求項４または５に記載の製造方法。 The process according to 請 Motomeko 4 or 5 wherein the motor is Ru Oh servo motor. 前記プリフォーム軸方向中心部分の外径をaとし、金型の軸方向中心部分の内径をbとしたとき、以下の式(１)を満たす請求項４〜６のいずれか１項に記載の製造方法。
４a ≦ b ≦ ６a ・・・・(１) The outer diameter of the preform axial central portion is a, an inner diameter of the axial center portion of the mold when is b, in any one of 請 Motomeko 4-6 that meet the following formula (1) The manufacturing method as described.
4a ≤ b ≤ 6a (1)
JP2005202997A 2005-07-12 2005-07-12 Manufacturing method of seamless belt for electrophotography Expired - Fee Related JP4789523B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005202997A JP4789523B2 (en) 2005-07-12 2005-07-12 Manufacturing method of seamless belt for electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005202997A JP4789523B2 (en) 2005-07-12 2005-07-12 Manufacturing method of seamless belt for electrophotography

Publications (3)

Publication Number Publication Date
JP2007024954A JP2007024954A (en) 2007-02-01
JP2007024954A5 true JP2007024954A5 (en) 2008-08-07
JP4789523B2 JP4789523B2 (en) 2011-10-12

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Family Applications (1)

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JP2005202997A Expired - Fee Related JP4789523B2 (en) 2005-07-12 2005-07-12 Manufacturing method of seamless belt for electrophotography

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JP (1) JP4789523B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5517427B2 (en) * 2008-08-29 2014-06-11 キヤノン株式会社 Seamless belt for electrophotography
JP5982792B2 (en) * 2011-11-24 2016-08-31 株式会社リコー Belt for image forming apparatus and electrophotographic apparatus using the same
US10698347B2 (en) 2018-12-04 2020-06-30 Canon Kabushiki Kaisha Electrophotographic belt and image forming apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0649327B2 (en) * 1989-07-20 1994-06-29 日精エー・エス・ビー機械株式会社 Injection stretch blow molding method
JPH0671762B2 (en) * 1991-04-30 1994-09-14 日精エー・エス・ビー機械株式会社 Injection stretch blow molding method for hollow body having thick bottom wall
JPH1076568A (en) * 1996-09-05 1998-03-24 Mitsubishi Plastics Ind Ltd Method of blow molding
JP2001018284A (en) * 1999-07-06 2001-01-23 Suzuka Fuji Xerox Co Ltd Seamless belt and production thereof
JP2004188866A (en) * 2002-12-12 2004-07-08 Aoki Technical Laboratory Inc Orientation blow molding method and blow mold assembly

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