JP2003245934A5 - - Google Patents

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Publication number
JP2003245934A5
JP2003245934A5 JP2002049323A JP2002049323A JP2003245934A5 JP 2003245934 A5 JP2003245934 A5 JP 2003245934A5 JP 2002049323 A JP2002049323 A JP 2002049323A JP 2002049323 A JP2002049323 A JP 2002049323A JP 2003245934 A5 JP2003245934 A5 JP 2003245934A5
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JP
Japan
Prior art keywords
skin material
mold
thermoplastic resin
male
cavity
Prior art date
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Granted
Application number
JP2002049323A
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Japanese (ja)
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JP2003245934A (en
JP4321003B2 (en
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Publication date
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Priority to JP2002049323A priority Critical patent/JP4321003B2/en
Priority claimed from JP2002049323A external-priority patent/JP4321003B2/en
Publication of JP2003245934A publication Critical patent/JP2003245934A/en
Publication of JP2003245934A5 publication Critical patent/JP2003245934A5/ja
Application granted granted Critical
Publication of JP4321003B2 publication Critical patent/JP4321003B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (4)

雌雄いずれか一方の金型のキャビティ内の表皮材貼合部と非貼合部の境界部に対応する位置に突出可能な可動堰を設けた雌雄一対の金型を使用して、熱可塑性樹脂からなる基材表面の外周部の少なくとも一部に表皮材が部分的に貼合一体化され、かつ該表皮材貼合部が3次元形状を含む形状からなる多層成形品を製造する方法であって、
1)雌雄両金型を型締めした時に、キャビティ面の形状に沿った状態で、表皮材が基材表面の外周部の少なくとも一部を覆い、かつ該表皮材の基材内部に収まる端末部が基材表面における表皮材貼合部と非貼合部の境界部の形状と一致するような形状に表皮材を予め裁断する工程。
2)開放状態にある雌雄両金型間の所定の位置に前記表皮材を供給する工程。
3)雌雄両金型を型締めして、表皮材をキャビティ面の形状に沿わせる工程
4)可動堰をキャビティ内に突出させ、その先端部で表皮材の基材内部に収まる端末部を金型面に押さえつける工程。
5)表皮材を雌雄いずれかの一方の金型面に押さえつけた状態を維持しながら、最終製品厚みよりも大きいキャビティクリアランスとなるまで雌雄金型を開く工程。
6)表皮材と非表皮材側の金型面との間のキャビティに、全溶融状熱可塑性樹脂量のうち、表皮材が貼合される基材部を形成するに必要な樹脂量の溶融状熱可塑性樹脂を供給する工程。
7)前記溶融状熱可塑性樹脂を供給後あるいは供給しながら最終製品厚みとなるまで型締めする工程。
8)金型内で熱可塑性樹脂を1次冷却する工程。
9)可動堰を金型内に収容する工程。
10)キャビティクリアランスを保持しつつ、残余のキャビティ内に残余の溶融状熱可塑性樹脂を供給する工程。
11)金型内で熱可塑性樹脂を2次冷却する工程。
12)金型を開放状態にして成形体を取り出す工程。
からなることを特徴とする多層成形品の製造方法。
Thermoplastic resin using a pair of male and female molds provided with a movable weir that can protrude at a position corresponding to the boundary between the skin material bonding part and the non-bonding part in the cavity of either mold The skin material is partially bonded and integrated with at least a part of the outer peripheral portion of the substrate surface, and the skin material bonded portion is a method for producing a multilayer molded article having a shape including a three-dimensional shape. And
1) A terminal portion in which the skin material covers at least a part of the outer peripheral portion of the surface of the base material and fits inside the base material of the skin material in a state along the shape of the cavity surface when both the male and female molds are clamped Cutting the skin material in advance into a shape that matches the shape of the boundary portion between the skin material bonding portion and the non-bonding portion on the substrate surface.
2) A step of supplying the skin material to a predetermined position between the male and female molds in the open state.
3) Clamping both the male and female molds to make the skin material conform to the shape of the cavity surface 4) The movable weir protrudes into the cavity, and the end portion that fits inside the base material of the skin material at the tip is gold The process of pressing against the mold surface.
5) A step of opening the male and female molds until the cavity clearance is larger than the final product thickness while maintaining the state in which the skin material is pressed against one of the male and female mold surfaces.
6) Melting of the amount of resin necessary to form the base material portion to which the skin material is bonded, out of the total molten thermoplastic resin amount, in the cavity between the skin material and the non-skin material side mold surface Supplying a thermoplastic resin.
7) A step of clamping the mold until the final product thickness is obtained after or while supplying the molten thermoplastic resin.
8) A step of primarily cooling the thermoplastic resin in the mold.
9) The process of accommodating a movable weir in a metal mold | die.
10) A step of supplying the remaining molten thermoplastic resin into the remaining cavity while maintaining the cavity clearance.
11 ) A step of secondarily cooling the thermoplastic resin in the mold.
12 ) A step of removing the molded body with the mold open.
A method for producing a multilayer molded article comprising:
表皮材として、発泡層を有する表皮材を用いることを特徴とする請求項1に記載の多層成形品の製造方法。The method for producing a multilayer molded article according to claim 1, wherein a skin material having a foam layer is used as the skin material. 前記工程8)における一次冷却の後、雌雄金型を僅かに開いて熱可塑性樹脂を発泡させる工程を含むことを特徴とする請求項1または2に記載の多層成形品の製造方法。 3. The method for producing a multilayer molded article according to claim 1, further comprising a step of foaming the thermoplastic resin by slightly opening the male and female molds after the primary cooling in the step 8). 多層成形品が自動車内装部品であることを特徴とする請求項1からに記載の多層成形品の製造方法。Method for producing a multilayer molded article according to claims 1 to 3, wherein the multilayer molded article is an automobile interior part.
JP2002049323A 2002-02-26 2002-02-26 Method for producing multilayer molded product Expired - Fee Related JP4321003B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002049323A JP4321003B2 (en) 2002-02-26 2002-02-26 Method for producing multilayer molded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002049323A JP4321003B2 (en) 2002-02-26 2002-02-26 Method for producing multilayer molded product

Publications (3)

Publication Number Publication Date
JP2003245934A JP2003245934A (en) 2003-09-02
JP2003245934A5 true JP2003245934A5 (en) 2005-06-23
JP4321003B2 JP4321003B2 (en) 2009-08-26

Family

ID=28661867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002049323A Expired - Fee Related JP4321003B2 (en) 2002-02-26 2002-02-26 Method for producing multilayer molded product

Country Status (1)

Country Link
JP (1) JP4321003B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007083898A (en) * 2005-09-22 2007-04-05 Kasai Kogyo Co Ltd Automobile interior component
JP6725832B2 (en) * 2016-03-07 2020-07-22 テイ・エス テック株式会社 Molding method
KR102200943B1 (en) * 2017-04-21 2021-01-08 (주)엘지하우시스 Method for manufacturing vehicle parts

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