JP3806778B2 - Mold device for partial skin material pasting and partial skin material pasting method using the same - Google Patents

Mold device for partial skin material pasting and partial skin material pasting method using the same Download PDF

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JP3806778B2
JP3806778B2 JP34820096A JP34820096A JP3806778B2 JP 3806778 B2 JP3806778 B2 JP 3806778B2 JP 34820096 A JP34820096 A JP 34820096A JP 34820096 A JP34820096 A JP 34820096A JP 3806778 B2 JP3806778 B2 JP 3806778B2
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skin material
mold
molten resin
fixed mold
partition plate
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JPH10180814A (en
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浩司 久保田
友男 竹内
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U MHI Platech Co Ltd
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Mitsubishi Heavy Industries Plastic Techonologies Co Ltd
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    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3041—Trim panels

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、射出成形機等の成形機の型締め装置に取り付ける金型により、成形品の表面の一部に、実用上あるいは装飾用に布，皮革等の表皮材を貼り付けて、部分表皮材貼り成形品を成形するための部分表皮材貼り成形用金型装置及びこれを用いた部分表皮材貼り成形方法に関する。
【０００２】
【従来の技術】
車両等の内装品には樹脂成形による部品が多用されているが、肌触りを良くするために、布，皮革等の表皮材を表面の一部に貼り付けられた部分表皮材貼り成形品も用いられている。このような部分表皮材貼り成形品は、通常、成形後の成形品に、接着剤を用いて表皮材を貼り付けて作成されている。しかし、接着剤の使用を無くし作業能率を向上させるべく、成形工程において、金型の所定面に予め表皮材を取り付けておき、この表皮材の裏面側に溶融樹脂を射出，充填して、表皮材の貼り付けと成形とを同時に行ない、部分表皮材貼り成形品を成形することが要望され、従来、幾つかの手法が提案されている。
【０００３】
例えば特開昭６０−２１２３１２号公報では、表皮材を部分的に取り付けて一体成形する手法として、金型を２組設け、第１の金型において表皮材を取り付け溶融樹脂を射出して中間成形品を作成し、この中間成形品を第２の金型に移載して、再度、溶融樹脂を射出して最終成形品を成形する技術が開示されている。しかし、このような技術では、２組の金型が必要で、中間成形品を他の金型に移載する必要もあるため、部分表皮材貼り成形品の成形工程が煩雑になる。
【０００４】
そこで、特開平７−１９５４３１号公報では、可動金型を分割して、中型に表皮を取り付け、ここに部分的に射出成形を行ない、その後、中型を少しだけ開いて２次射出を行なって、基本的に１組の金型により成形品を成形する技術が開示されている。この技術の概略について、図１０を参照しながら説明する。
図１０において、３０は可動型盤に取り付けられた可動金型、２０はこの可動金型３０に内蔵された加圧手段により金型３０に対して相対的に移動可能な中子金型である。また、１０は固定金型で、この固定金型１０には、複数の溶融樹脂ゲート１１ａ−１，１１ａ−２が形成されている。
【０００５】
これらの金型１０，２０，３０を用いて成形品を表皮材Ｈと一体成形する際には、まず、表皮材Ｈを取り付けた中子金型２０を所定位置まで移動して固定金型１０に近づけ、固定金型１０の中子金型２０用のゲート１１ａ−１から、中子金型２０と固定金型１０との間に形成されたキャビティ内に溶融樹脂を充填して成形を行なう。
【０００６】
次に、中子金型２０の位置を維持したまま、可動金型３０を閉じ、この可動金型３０と固定金型１０との間に形成されたキャビティ内に、可動金型３０用のゲート１１ａ−２から溶融樹脂を注入して成形を行なう。
可動金型３０用のゲート１１ａ−２は、中子金型２０用のゲート１１ａ−１よりもタイミングを遅らせて開くようにし、中子金型２０に充填された樹脂が、溝１２と中子金型２０の凸部２１との間に形成される隙間において未固化の状態で止まっている時に、可動金型３０用のゲート１１ａ−２から注入された溶融樹脂が金型キャビティ内を満たし、先に中子金型２０側に注入された樹脂と接触し接合して一体となる。
【０００７】
なお、図１１は、図１０により前述した金型１０，２０により部分表皮材貼り成形を行なったときの表皮材Ｈの周縁部の状態を示す部分断面図である。
【０００８】
【発明が解決しようとする課題】
しかしながら、上述した従来の表皮材一体成形技術（特開平７−１９５４３１号）では、溶融樹脂を金型キャビティ内に注入した時に、図１１に示すように表皮材Ｈの周縁部が溶融樹脂に押されて不必要な部分の表面に露出してしまい、表皮材と非表皮貼り部との境界が画然とせず、形状端部のバラツキを生じて、高品質の成形品を得ることができない。また、可動金型が２つの部分（図１０の符号２０，３０参照）に分割されているため、金型装置が複雑な構造で高コストのものになるなどの課題もある。
【０００９】
本発明は、このような課題に鑑み創案されたもので、表皮材の周縁部を成形品の表面に露出させず表皮材の境界を画然とさせ、高品質の部分表皮材貼り成形品を簡素な構造で且つ安価に製造できるようにした、部分表皮材貼り成形用金型装置及びこれを用いた部分表皮材貼り成形方法を提供することを目的とする。
【００１０】
【課題を解決するための手段】
上記目的を達成するために、本発明の部分表皮材貼り成形用金型装置（請求項１）は、固定金型と、この固定金型に対向して設置され固定金型に対して型締め移動する可動金型とから構成され、可動金型側における固定金型との対向面に表皮材を取り付けた状態で固定金型と可動金型との型締めを行なって、表皮材を表面の一部に貼り付けられた部分表皮材貼り成形品を成形するものであって、可動金型に取り付けられた表皮材の周縁部を固定金型側へ折り曲げた状態で表皮材の全周を囲い且つ可動金型と固定金型との間で出入自在な仕切り板と、この仕切り板を出入駆動するアクチュエータとを可動金型にそなえ、固定金型において仕切り板と対向する位置には、仕切り板の先端幅よりも広い幅を有し且つ型締め時に仕切り板の先端が嵌合しうる溝を形成するとともに、溶融樹脂を仕切り板内側のキャビティ内に注入する第１の溶融樹脂通路と溶融樹脂を仕切り板外側のキャビティ内に注入する第２の溶融樹脂通路とを固定金型に形成し、これらの第１の溶融樹脂通路および第２の溶融樹脂通路をそれぞれ開閉する第１および第２の開閉機構を固定金型にそなえるとともに、アクチュエータが、固定金型と可動金型との型締め時に仕切り板の先端を溝の底に当接させてキャビティを区画することを特徴としている。
なお、仕切り板が、表皮材の全周を囲うように分割された複数の板部を備えるとともに、それぞれの複数の板部が、厚さ方向と幅方向との位置の融通が効くようにアクチュエータに保持されることが好ましい（請求項２）。
【００１１】
上述した請求項１記載の部分表皮材貼り成形用金型装置において、▲１▼型締め時にアクチュエータにより仕切り板を固定金型側へ突出させ仕切り板の先端を溝の底に当接させることにより表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り板内側のキャビティ内に溶融樹脂を注入して表皮材貼り形状部分を成形してから、▲３▼アクチュエータにより仕切り板を所定量だけ可動金型側へ引き込み、▲４▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り板外側のキャビティ内に溶融樹脂を注入し、仕切り板外側の部分を表皮材貼り形状部分と一体的に成形してもよい（請求項２）。
【００１２】
また、上述した請求項１記載の部分表皮材貼り成形用金型装置において、▲１▼可動金型を固定金型に対して型全閉位置よりも寸開した状態で、アクチュエータにより仕切り板を固定金型側へ突出させ仕切り板の先端を溝の底に当接させることにより表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り板内側のキャビティ内に所定量の溶融樹脂を注入し、▲３▼可動金型を固定金型側へ移動させて型締めを行ない表皮材貼り部分のみを圧縮成形してから、▲４▼アクチュエータにより仕切り板を所定量だけ可動金型側へ引き込み、▲５▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り板外側のキャビティ内に溶融樹脂を注入し、仕切り板外側の部分を表皮材貼り形状部分と一体的に成形してもよい（請求項３）。
【００１３】
さらに、上述した請求項１記載の部分表皮材貼り成形用金型装置において、▲１▼可動金型を固定金型に対して型全閉位置よりも寸開した状態で、アクチュエータにより仕切り板を固定金型側へ突出させ仕切り板の先端を溝の底に当接させることにより表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り板内側のキャビティ内に所定量の溶融樹脂を注入し、▲３▼可動金型を固定金型側へ移動させて型締めを行ない表皮材貼り部分のみを圧縮成形してから、▲４▼アクチュエータにより仕切り板を所定量だけ可動金型側へ引き込むとともに、再度、可動金型を固定金型に対して寸開し、▲５▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り板外側のキャビティ内に所定量の溶融樹脂を注入し、▲５▼再度、可動金型を固定金型側へ移動させて型締めを行ない、仕切り板外側の部分を表皮材貼り形状部分と一体的に圧縮成形してもよい（請求項４）。
【００１４】
上述の構成により、本発明の部分表皮材貼り成形用金型装置（請求項１，２）及びこれを用いた部分表皮材貼り成形方法（請求項３〜５）では、仕切り板に囲まれた部分に取り付けられた表皮材の周縁部は仕切り板により支持されて固定金型側へ折り曲げられており、型締めして初回の溶融樹脂の注入により成形を行なった後に仕切り板を可動金型側に引き込むことで、表皮材の周縁部は、２回目の溶融樹脂の注入により成形品肉厚の中に巻き込まれることになり、成形品の表面に露出せず、表皮材と非表皮貼り部との境界が画然としたものになる。
また、本発明の部分表皮材貼り成形用金型装置（請求項２）によれば、加工誤差や熱歪みに起因する、可動金型の溝と仕切り板との拗れの発生を防止できる。
【００１５】
一方、本発明の部分表皮材貼り成形用金型装置（請求項６）は、固定金型と、この固定金型に対向して設置され固定金型に対して型締め移動する可動金型とから構成され、可動金型側における固定金型との対向面に表皮材を取り付けた状態で固定金型と可動金型との型締めを行なって、表皮材を表面の一部に貼り付けられた部分表皮材貼り成形品を成形するものであって、可動金型に取り付けられた表皮材の周縁部を固定金型側へ折り曲げた状態で表皮材の全周を囲う仕切り凸部を可動金型に形成し、固定金型において仕切り凸部と対向する位置には、仕切り凸部の先端幅よりも広い幅を有し且つ型締め時に仕切り凸部の先端と当接しうる摺動部材を、可動金型の移動方向へ摺動可能にそなえるとともに、この摺動部材を摺動駆動するアクチュエータを固定金型側にそなえ、溶融樹脂を仕切り凸部内側のキャビティ内に注入する第１の溶融樹脂通路と溶融樹脂を仕切り凸部外側のキャビティ内に注入する第２の溶融樹脂通路とを固定金型に形成し、これらの第１の溶融樹脂通路および第２の溶融樹脂通路をそれぞれ開閉する第１および第２の開閉機構をそなえるとともに、アクチュエータは、固定金型と可動金型との型締め時に摺動部材を可動金型側へ摺動させ該仕切り凸部の先端を当接させて表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画することを特徴としてる。
なお、摺動部材が、表皮材の周縁部に沿って分割された複数の摺動部を備えるとともに、それぞれの複数の摺動部が、アクチュエータに支持されることが好ましい（請求項７）。
【００１６】
上述した請求項５記載の部分表皮材貼り成形用金型装置において、▲１▼型締め時にアクチュエータにより摺動部材を可動金型側へ摺動させ仕切り凸部の先端と当接させることにより表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り凸部内側のキャビティ内に溶融樹脂を注入して表皮材貼り形状部分を成形してから、▲３▼アクチュエータにより摺動部材を所定量だけ固定金型側へ引き込み、▲４▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り凸部外側のキャビティ内に溶融樹脂を注入し、仕切り凸部外側の部分を表皮材貼り形状部分と一体的に成形してもよい（請求項６）。
【００１７】
また、上述した請求項５記載の部分表皮材貼り成形用金型装置において、▲１▼可動金型を固定金型に対して型全閉位置よりも寸開した状態で、アクチュエータにより摺動部材を可動金型側へ摺動させ仕切り凸部の先端と当接させることにより表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り凸部内側のキャビティ内に所定量の溶融樹脂を注入し、▲３▼可動金型を固定金型側へ移動させて型締めを行ない表皮材貼り部分のみを圧縮成形してから、▲４▼アクチュエータにより摺動部材を所定量だけ固定金型側へ引き込み、▲５▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り凸部外側のキャビティ内に溶融樹脂を注入し、仕切り凸部外側の部分を表皮材貼り形状部分と一体的に成形してもよい（請求項７）。
【００１８】
さらに、上述した請求項５記載の部分表皮材貼り成形用金型装置において、▲１▼可動金型を固定金型に対して型全閉位置よりも寸開した状態で、アクチュエータにより摺動部材を可動金型側へ摺動させ仕切り凸部の先端と当接させることにより表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、▲２▼第１の開閉機構により第１の溶融樹脂通路のみを開放して仕切り凸部内側のキャビティ内に所定量の溶融樹脂を注入し、▲３▼可動金型を固定金型側へ移動させて型締めを行ない表皮材貼り部分のみを圧縮成形してから、▲４▼アクチュエータにより摺動部材を所定量だけ固定金型側へ引き込むとともに、再度、可動金型を固定金型に対して寸開し、▲５▼第２の開閉機構により第２の溶融樹脂通路のみを開放して仕切り凸部外側のキャビティ内に所定量の溶融樹脂を注入し、▲６▼再度、可動金型を固定金型側へ移動させて型締めを行ない、仕切り凸部外側の部分を表皮材貼り形状部分と一体的に圧縮成形してもよい（請求項８）。
【００１９】
上述の構成により、本発明の部分表皮材貼り成形用金型装置（請求項６，７）及びこれを用いた部分表皮材貼り成形方法（請求項８〜１０）では、仕切り凸部に囲まれた部分に取り付けられた表皮材の周縁部は仕切り凸部により支持されて固定金型側へ折り曲げられており、型締めして初回の溶融樹脂の注入により成形を行なった後に摺動部材を固定金型側に引き込むことで、表皮材の周縁部は、２回目の溶融樹脂の注入により成形品肉厚の中に巻き込まれることになり、成形品の表面に露出せず、表皮材と非表皮貼り部との境界が画然としたものになる。
【００２０】
【発明の実施の形態】
以下、図面を参照して本発明の実施の形態を説明する。
本発明の実施形態における金型装置は、射出成形機等の成形機の型締め装置に取り付ける金型により、成形品の表面の一部に、実用上あるいは装飾用に表皮材を貼り付けて、部分表皮材貼り成形品を製造するためのもので、金型キャビティ面に表皮材を取り付ける作業以降については、金型に設けられた後述の各種機構と型締め装置（図示省略）が有する機能とにより全て自動的に行なうものである。
【００２１】
（ａ）第１実施形態の説明
図１〜図３は本発明の第１実施形態としての部分表皮材貼り成形用金型装置を示すもので、図１はその縦断面図、図２はその可動金型のキャビティ面を示す正面図（図１のＡ矢視図）、図３はその固定金型のキャビティ面を示す正面図（図１のＢ矢視図）である。また、図４（Ａ）〜（Ｈ）はいずれも第１実施形態の金型装置を用いて行なわれる部分表皮材貼り成形品の成形工程を説明するための模式的な縦断面図、図５は第１実施形態の金型装置により成形された部分表皮材貼り成形品の表皮材周縁部の状態を示す部分断面図（図１１に対応する断面図）である。
【００２２】
図１に示すように、第１実施形態の金型装置は、固定金型１と、この固定金型１に対向して設置され固定金型１に対して型締め移動する可動金型２とから構成されており、可動金型２側における固定金型１との対向面（キャビティ面２Ａ）に表皮材１５を取り付けた状態で固定金型１と可動金型２との型締めを行なって、表皮材１５を表面の一部に貼り付けられた部分表皮材貼り成形品を成形するものである。
【００２３】
そして、図１および図２に示すように、可動金型２には、キャビティ面２Ａ側で開口する一定幅のスリット状溝２ａが、可動金型２に取り付けられる表皮材１５の周縁部の形状に沿って無端状に切り込まれて形成されるとともに、このスリット状溝２ａに連通する、本実施形態では、８個の円筒状穴２ｂが、キャビティ面２Ａとは反対側に開口するように且つスリット状溝２ａに沿って略等間隔で形成されている。これらの円筒状穴２ｂは、後述する仕切り板６を成す８枚の部分６ａ〜６ｈにそれぞれ対応して形成されている。
【００２４】
スリット状溝２ａには、図２に示すように、本実施形態では、８枚に分割された仕切り板６（６ａ〜６ｈ）が、可動金型２に取り付けられた表皮材１５の周縁部を固定金型１側へ折り曲げた状態で表皮材１５の全周を囲うように、且つ、可動金型２と固定金型１との間で出入自在に挿嵌されている。これらの８枚の仕切り板６ａ〜６ｈは、それぞれ、円筒状穴２ｂに嵌合する支持棒９の一端側に対し、ピン１７によりピン止めされるとともに、各支持棒９の他端側は、キャビティ面２Ａとは反対側に配置された仕切り板支持部材７に対して固定されている。
【００２５】
このとき、前述のごとく、仕切り板６を８枚の部分６ａ〜６ｈに分割し、各部分６ａ〜６ｈを、仕切り板支持部材７に固設された各支持棒９にピン止めすることにより、仕切り板６（６ａ〜６ｈ）をスリット状溝２ａに挿嵌した時に、仕切り板６が厚さ方向と幅方向との位置の融通が効くように保持され、加工誤差や熱歪みに起因する、可動金型２のスリット溝２ａと仕切り板６との間の拗れの発生を防止できるようになっている。
【００２６】
また、可動金型２内には、仕切り板６（６ａ〜６ｈ）を出入駆動するための油圧シリンダ（アクチュエータ）２ｃが形成され、仕切り板支持部材７が、油圧シリンダ２ｃ内を摺動するピストン２ｄに、ロッド８を介して連結されている。従って、ピストン２ｄ前後の油室に圧油を供給することにより、仕切り板６（６ａ〜６ｈ）が、ロッド８，仕切り板支持部材７および各支持棒９を介し、スリット状溝２ａに案内されながら、前後方向（図１の左右方向）へ即ち金型１，２間のキャビティ内へ出入駆動されるようになっている。仕切り板６は、油圧シリンダ２ｃへの圧油供給の調整を行なうことにより、随時、適当な位置に停止することができる。
【００２７】
一方、図１および図３に示すように、固定金型１のキャビティ面１Ａにおいて仕切り板６と対向する位置には、一定の深さの溝１ｄが、成形品に貼り付けるべき部分表皮材１５の外形状に合わせて無端状に形成されている。この溝１ｄは、仕切り板６の先端幅よりも広い幅を有し、且つ、型締め時に可動金型２のキャビティ面２Ａから突出した仕切り板６の先端が嵌合しその底面に当接するようになっている。
【００２８】
また、固定金型１の内部には、溶融樹脂通路１ａ，１ｂ，１ｃが形成されている。溶融樹脂通路１ａは、固定金型１のキャビティ面１Ａとは反対側の面に形成された溶融樹脂入口１ｅに連通するもので、２つに分岐して、第１の溶融樹脂通路１ｂおよび第２の溶融樹脂通路１ｃにそれぞれゲート弁（第１および第２の開閉機構）４および５を介して連通接続される。
【００２９】
第１の溶融樹脂通路１ｂは、溶融樹脂を仕切り板６内側のキャビティ１６ａ内に注入するものであり、第２の溶融樹脂通路１ｃは、溶融樹脂を仕切り板６外側のキャビティ１６ｂ内に注入するものである。そして、これらの第１の溶融樹脂通路１ｂおよび第２の溶融樹脂通路１ｃは、それぞれ、ゲート弁４および５により溶融樹脂通路１ａに対して接／断されることにより開閉状態を切り換えられるようになっている。ゲート弁４，５は、それぞれ、図示省略の駆動機構により開閉駆動される。
【００３０】
なお、固定金型１の溶融樹脂入口１ｅには、稼働時に、溶融樹脂を射出する射出ノズル３（図１の二点鎖線参照）を圧接される。また、図１においては、固定金型１と可動金型２との型締め時に、仕切り板６を固定金型１側へ突出させて仕切り板６の先端を溝１ｄの底に当接させることにより表皮材１５を貼り付ける表皮材貼り形状部分のキャビティ１６ａを区画し、このキャビティ１６ａ内に溶融樹脂を射出した状態〔図４（Ｂ）に対応する状態〕が図示されている。
【００３１】
次に、上述のごとく構成された本発明の第１実施形態としての部分表皮材貼り成形用金型装置を用いて行なわれる部分表皮材貼り成形品の成形工程について、図４（Ａ）〜（Ｈ）を参照しながら説明する。ここでは、本実施形態の金型装置を用いた３通りの成形手法について説明する。
第１の手法について、図４（Ａ）〜（Ｄ）を順に参照しながら説明する。
【００３２】
まず、図４（Ａ）に示すように、可動金型２の仕切り板６をキャビティ面２Ａから突出させ、仕切り板６に囲まれた金型キャビティ面２Ａに表皮材１５を取り付ける。このときの取付手法としては、真空吸着，刺しピン，開閉テープ，面ファスナ等による一時的な取付手法が用いられる。
ついで、図４（Ｂ）に示すように、可動金型２を固定金型１側へ移動して型締めを行ない、油圧シリンダ２ｃにより仕切り板６を固定金型１側へ突出させ仕切り板６の先端を溝１ｄの底に当接させることにより表皮材１５を貼り付ける表皮材貼り形状部分のキャビティ１６ａを区画する。そして、ゲート弁５は閉じたままゲート弁４のみを開いて溶融樹脂通路１ａと第１の溶融樹脂通路１ｂとを連通し、仕切り板６内側のキャビティ１６ａ内に溶融樹脂を注入して表皮材貼り形状部分を射出成形する。
【００３３】
この後、図４（Ｃ）に示すように、キャビティ１６ａ内の樹脂が固化する前のタイミングで、ゲート弁４を閉じ、油圧シリンダ２ｃにより仕切り板６を所定量だけ可動金型２側へ引き込み、仕切り板６の先端と固定金型１の溝１ｄとの間に空間を設けてから、ゲート弁５のみを開いて溶融樹脂通路１ａと第２の溶融樹脂通路１ｃとを連通し、仕切り板６外側のキャビティ１６ｂ内に溶融樹脂を注入して射出成形を行なう。この工程において、後から射出された溶融樹脂は、仕切り板６を後退させた空間を満たし、前に射出した固化前の樹脂と接し同化する。この後、ゲート弁５を閉じ、溶融樹脂を冷却・固化し、成形品を離型すると、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。
【００３４】
第２の手法について、図４（Ａ），（Ｅ），（Ｆ），（Ｃ），（Ｄ）を順に参照しながら説明する。
まず、図４（Ａ）に示すように、前述と同様、可動金型２の仕切り板６をキャビティ面２Ａから突出させ、仕切り板６に囲まれた金型キャビティ面２Ａに表皮材１５を取り付ける。
【００３５】
ついで、図４（Ｅ）に示すように、可動金型２を、固定金型１に対して型全閉位置よりも寸開した状態にする。つまり小寸度ｅだけ開いた位置で停止し、その状態を保ったままで、油圧シリンダ２ｃにより仕切り板６を固定金型１側へ突出させ仕切り板６の先端を溝１ｄの底に当接させることにより、表皮材１５を貼り付ける表皮材貼り部分のキャビティ１６ａを区画する。この状態で、ゲート弁５は閉じたままゲート弁４のみを開いて溶融樹脂通路１ａと第１の溶融樹脂通路１ｂとを連通し、仕切り板６内側のキャビティ１６ａ内に所定量の溶融樹脂を注入する。
【００３６】
そして、図４（Ｆ）に示すように、ゲート弁４を閉じ溶融樹脂通路１ｂを閉じてから、可動金型２を矢印で示す方向（型締め方向，図中右方向）に移動して、表皮材１５を取り付けてあるキャビティ１６ａ内の溶融樹脂を圧縮成形し、同時に表皮材１５の貼り付けを達成する。
この後、図４（Ｃ）に示す工程に移行し、前述と同様、キャビティ１６ａ内の樹脂が固化する前のタイミングで、油圧シリンダ２ｃにより仕切り板６を所定量だけ可動金型２側へ引き込み、仕切り板６の先端と固定金型１の溝１ｄとの間に空間を設けてから、ゲート弁５のみを開いて溶融樹脂通路１ａと第２の溶融樹脂通路１ｃとを連通し、仕切り板６外側のキャビティ１６ｂ内に溶融樹脂を注入して射出成形を行なう。この工程において、後から射出された溶融樹脂は、仕切り板６を後退させた空間を満たし、前に射出した固化前の樹脂と接し同化する。この後、ゲート弁５を閉じ、溶融樹脂を冷却・固化し、成形品を離型する。
【００３７】
これにより、第２の手法でも、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。また、この第２の手法では、表皮材１５を取り付けてあるキャビティ１６ａ内の溶融樹脂を圧縮成形するので、樹脂材と表皮材１５との、より強固な接着を得ることができる。
第３の手法について、図４（Ａ），（Ｅ），（Ｆ），（Ｇ），（Ｈ），（Ｄ）を順に参照しながら説明する。
【００３８】
まず、図４（Ａ）〜（Ｆ）に示す状態までは、前述した第２の手法と同じであるので、その説明は省略する。初めに表皮材貼り形状部のキャビティ１６ａのみを圧縮成形し、半固化した図４（Ｆ）に示す状態から、次に、図４（Ｇ）に示すように、油圧シリンダ２ｃにより仕切り板６を所定量だけ可動金型２側へ引き込むとともに、再度、可動金型２を固定金型１に対して寸法ｅだけ寸開し、ゲート弁５のみを開いて溶融樹脂通路１ａと第２の溶融樹脂通路１ｃとを連通し、仕切り板６外側のキャビティ１６ｂ内に所定量の溶融樹脂を注入する。
【００３９】
この後、図４（Ｈ）に示すように、ゲート弁５を閉じて第２の溶融樹脂通路１ｃを閉とし、再度、可動金型２を固定金型１側へ移動させて型締め側に移動し、仕切り板６外側のキャビティ１６ｂの溶融樹脂を圧縮成形する。
これにより、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。この第３の手法では、表皮材１５を取り付けてあるキャビティ１６ａ内およびそれ以外のキャビティ１６ｂ内の溶融樹脂を圧縮成形するので、樹脂材と表皮材１５とのより強固な接着が得られるとともに、歪みの少ない成形品を得ることができる。
【００４０】
上述の各手法により成形された部分表皮材貼り成形品の表皮材周縁部の状態を図５に示す。従来の中子式金型（仕切り板が固定のもの）による成形品は、図１１にも示したように表皮材の周縁が仕切り板部分（凸部２１）を越えて成形品の表面に露出するため、表皮材のトリミング形状，取付誤差，成形作業中のずれ等により、商品価値が低下し、製品の歩留まりが悪くなるおそれがある。
【００４１】
これに対して、本実施形態によれば、２段目の射出成形の前に、仕切り板６を引き込める作用を有しているため、２回目に射出された溶融樹脂は表皮材１５の周縁を巻き込んで、図５に示すように、表皮材１５の周縁が成形品の表面には露出せず、表皮材１５と非表皮材貼り部との境界が画然としたものになる。
従って、高品質の部分表皮材貼り成形品を簡素な構造で且つ安価に製造することができる。
【００４２】
また、表皮材１５の取付位置が余程ずれない限り、成形品に貼り付けられた表皮材１５の見栄えはよくなるので、布類の裁断精度を厳しくしなくても、部分表皮材貼り成形品の品質が大幅に向上する。
さらに、ゲート弁４および５を用いて溶融樹脂通路１ｂ，１ｃをそれぞれ開閉することにより、複数の金型や複数の成形機を用いることなく、１台の成形機と１組の金型１，２とを使用して部分表皮材貼り成形と圧縮成形とを極めて容易に行なえる利点もある。
【００４３】
（ｂ）第２実施形態の説明
図６〜図９は本発明の第２実施形態としての部分表皮材貼り成形用金型装置を示すもので、図６はその縦断面図、図７はその可動金型のキャビティ面を示す正面図（図６のＣ矢視図）、図８はその固定金型のキャビティ面を示す正面図（図６のＤ矢視図）、図９は図６のＥ−Ｅ矢視断面図である。
【００４４】
図６に示すように、第２実施形態の金型装置も、固定金型２７と、この固定金型２７に対向して設置され固定金型２７に対して型締め移動する可動金型２６とから構成されており、可動金型２６側における固定金型２７との対向面（キャビティ面２６Ａ）に表皮材１５を取り付けた状態で固定金型２７と可動金型２６との型締めを行なって、表皮材１５を表面の一部に貼り付けられた部分表皮材貼り成形品を成形するものである。
【００４５】
そして、図６および図７に示すように、可動金型２６には、一定高さの仕切り凸部２６ａが形成されている。この仕切り凸部２６ａは、可動金型２６のキャビティ２６Ａに取り付けられた表皮材１５の周縁部を固定金型２７側へ折り曲げた状態で表皮材１５の全周を囲うように形成されている。
また、図６および図８に示すように、固定金型２７において仕切り凸部２６ａと対向する位置には、仕切り凸部２６ａの先端幅よりも広い幅を有し且つ型締め時に仕切り凸部２６ａの先端と当接しうる摺動部材３４（３４ａ〜３４ｈ）が、可動金型２６の移動方向（型締め方向）へ摺動可能にそなえられている。
【００４６】
つまり、キャビティ面２７Ａ側で開口する一定幅（ほぼ摺動部材３４の幅）のスリット状溝２７ａが、可動金型２６に取り付けられる表皮材１５の周縁部の形状に沿って無端状に切り込まれて形成されるとともに、このスリット状溝２７ａに連通する、本実施形態では、８個の円筒状穴２７ｂが、キャビティ面２７Ａとは反対側に開口するように且つスリット状溝２７ａに沿って略等間隔で形成されている。これらの円筒状穴２７ｂは、後述する摺動部材３４を成す８個の部分３４ａ〜３４ｈにそれぞれ対応して形成されている。
【００４７】
スリット状溝２７ａには、図８に示すように、本実施形態では、８個に分割された摺動部材３４（３４ａ〜３４ｈ）が、可動金型２６の移動方向へ摺動可能に挿嵌されている。摺動部材３４が、可動金型２６側へ移動（前進）した時には、可動金型２６の仕切り凸部２６ａの先端に当接するようになっている（図６の実線参照）。
この摺動部材３４を成す各部分３４ａ〜３４ｈは、円筒状穴２７ｂに嵌合する支持棒３５の一端側に固設されるとともに、各支持棒３５の他端側は、キャビティ面２７Ａとは反対側に配置された摺動部材支持板３２に対して連結されている。このとき、図９に示すように、各支持棒３５の他端側にはリング状溝３５ａが形成されており、このリング状溝３５ａを、摺動部材支持板３２の周縁部に形成された切り欠き穴３２ａに係合させることにより、各支持棒３５は、型締め方向を拘束されながら摺動部材支持板３２に支持される。
【００４８】
ところで、第２実施形態では、固定金型２７は、固定金型支持部材２５に固設されて支持されており、これらの固定金型２７と固定金型支持部材２５との間に形成された空間内に、前述した摺動部材支持板３２が型締め方向へ移動可能にそなえられている。
そして、固定金型支持部材２５には、摺動部材３４（３４ａ〜３４ｈ）を摺動駆動するための油圧シリンダ（アクチュエータ）２５ｄが形成され、摺動部材支持板３２が、油圧シリンダ２５ｄ内を摺動するピストン２５ｅに、ロッド３３を介して連結されている。従って、ピストン２５ｅ前後の油室に圧油を供給することにより、摺動部材３４（３４ａ〜３４ｈ）が、ロッド３３，摺動部材支持板３２および各支持棒３５を介し、スリット状溝２７ａに案内されながら、前後方向（図６の左右方向）へ摺動駆動されるようになっている。摺動部材３４は、油圧シリンダ２５ｄへの圧油供給の調整を行なうことにより、随時、適当な位置に停止することができる。なお、図６において、摺動部材３４が油圧シリンダ２５ｄにより更新駆動され、摺動部材３４の先端が可動金型２６の仕切り凸部２６ａから離れた状態を、二点鎖線で示す。
【００４９】
一方、図６，図８および図９に示すように、固定金型支持部材２５の内部には、溶融樹脂通路２５ａ，２５ｂ，２５ｃが形成されている。溶融樹脂通路２５ａは、固定金型支持部材２５の固定金型２７とは反対側の面に形成された溶融樹脂入口２５ｆに連通するもので、第１の溶融樹脂通路２５ｂおよび第２の溶融樹脂通路２５ｃにそれぞれゲート弁（第１および第２の開閉機構）４および５を介して連通接続される。
【００５０】
また、固定金型支持部材２５の第１の溶融樹脂通路２５ｂは、固定金型２７の内部に形成された第１の溶融樹脂通路２７ｄに連通接続され、これらの溶融樹脂通路２５ｂおよび２７ｄにより、溶融樹脂が仕切り凸部２６ａ内側のキャビティ３６ａ内に注入されるようになっている。同様に、固定金型支持部材２５の第２の溶融樹脂通路２５ｃは、固定金型２７の内部に形成された第２の溶融樹脂通路２７ｃに連通接続され、これらの溶融樹脂通路２５ｃおよび２７ｃにより、溶融樹脂が仕切り凸部２６ａ外側のキャビティ３６ｂ内に注入されるようになっている。そして、これらの第１の溶融樹脂通路２５ｂ，２７ｄおよび第２の溶融樹脂通路２５ｃ，２７ｃは、それぞれ、ゲート弁４および５により溶融樹脂通路２５ａに対して接／断されることにより開閉状態を切り換えられるようになっている。ゲート弁４，５は、それぞれ、図示省略の駆動機構により開閉駆動される。
【００５１】
なお、固定金型支持部材２５の溶融樹脂入口２５ｆには、稼働時に、溶融樹脂を射出する射出ノズル３（図６の二点鎖線参照）を圧接される。また、図６においては、固定金型２７と可動金型２６との型締め時に、仕切り凸部２６ａに摺動部材３４を当接させることにより表皮材１５を貼り付ける表皮材貼り形状部分のキャビティ３６ａを区画し、このキャビティ３６ａ内に溶融樹脂を射出した状態が図示されている。
【００５２】
上述のごとく構成された本発明の第２実施形態としての部分表皮材貼り成形用金型装置を用いても、第１実施形態において前述した３通りの成形手法と同様の手順により、部分表皮材貼り成形を行なうことができる。第１実施形態と第２実施形態との違いは、型締め／溶融樹脂射出工程において、部分表皮材貼り付け部分を囲って仕切る際に、第１実施形態では仕切り板６を出入駆動するのに対し、第２実施形態では摺動部材３４を摺動駆動する点のみであり、それ以外については、図４（Ａ）〜（Ｈ）に示した工程とほぼ同様にして行なわれる。
【００５３】
つまり、第１の手法では、まず、可動金型２６の仕切り凸部２６ａに囲まれた金型キャビティ面２６Ａに表皮材１５を取り付ける〔図４（Ａ）に示す工程に対応〕。このときの取付手法としては、真空吸着，刺しピン，開閉テープ，面ファスナ等による一時的な取付手法が用いられる。
ついで、可動金型２６を固定金型２７側へ移動して型締めを行ない、油圧シリンダ２５ｄにより摺動部材３４を可動金型２６側へ摺動させ仕切り凸部２６ａの先端と当接させることにより表皮材１５を貼り付ける表皮材貼り形状部分のキャビティ３６ａを区画する。そして、ゲート弁５は閉じたままゲート弁４のみを開いて溶融樹脂通路２５ａと第１の溶融樹脂通路２５ｂ，２７ｄとを連通し、仕切り凸部２６ａ内側のキャビティ３６ａ内に溶融樹脂を注入して表皮材貼り形状部分を射出成形する〔図４（Ｂ）に示す工程に対応〕。
【００５４】
この後、キャビティ３６ａ内の樹脂が固化する前のタイミングで、ゲート弁４を閉じ、油圧シリンダ２５ｄにより摺動部材３４を所定量だけ固定金型２７側へ引き込み、仕切り凸部２６ａの先端と摺動部材３４との間に空間を設けてから、ゲート弁５のみを開いて溶融樹脂通路２５ａと第２の溶融樹脂通路２５ｃ，２７ｃとを連通し、仕切り凸部２６ａ外側のキャビティ３６ｂ内に溶融樹脂を注入して射出成形を行なう。この工程において、後から射出された溶融樹脂は、摺動部材３４を後退させた空間を満たし、前に射出した固化前の樹脂と接し同化する〔図４（Ｃ）に示す工程に対応〕。この後、ゲート弁５を閉じ、溶融樹脂を冷却・固化し、成形品を離型すると、第１実施形態と同様、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。
【００５５】
次に、第２の手法について説明する。
まず、前述と同様、可動金型２６の仕切り凸部２６ａに囲まれた金型キャビティ面２６Ａに表皮材１５を取り付ける〔図４（Ａ）に示す工程に対応〕。
ついで、可動金型２６を、固定金型２７に対して型全閉位置よりも寸開した状態で、油圧シリンダ２５ｄにより摺動部材３４を可動金型２６側へ摺動させ仕切り凸部２６ａの先端と当接させることにより、表皮材１５を貼り付ける表皮材貼り部分のキャビティ３６ａを区画する。この状態で、ゲート弁５は閉じたままゲート弁４のみを開いて溶融樹脂通路２５ａと第１の溶融樹脂通路２５ｂ，２７ｄとを連通し、仕切り凸部２６ａ内側のキャビティ３６ａ内に所定量の溶融樹脂を注入する〔図４（Ｅ）に示す工程に対応〕。
【００５６】
そして、ゲート弁４を閉じ溶融樹脂通路２５ｂ，２７ｄを閉じてから、可動金型２６を型締め方向へ移動して、表皮材１５を取り付けてあるキャビティ３６ａ内の溶融樹脂を圧縮成形し、同時に表皮材１５の貼り付けを達成する〔図４（Ｆ）に示す工程に対応〕。
この後、前述した第１の手法と同様、キャビティ３６ａ内の樹脂が固化する前のタイミングで、油圧シリンダ２５ｄにより摺動部材３４を所定量だけ固定金型２７側へ引き込み、仕切り凸部２６ａの先端と摺動部材３４との間に空間を設けてから、ゲート弁５のみを開いて溶融樹脂通路２５ａと第２の溶融樹脂通路２５ｃ，２７ｃとを連通し、仕切り凸部２６ａ外側のキャビティ３６ｂ内に溶融樹脂を注入して射出成形を行なう〔図４（Ｃ）に示す工程に対応〕。この工程において、後から射出された溶融樹脂は、摺動部材３４を後退させた空間を満たし、前に射出した固化前の樹脂と接し同化する。この後、ゲート弁５を閉じ、溶融樹脂を冷却・固化し、成形品を離型する。
【００５７】
これにより、第２の手法でも、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。また、この第２の手法では、表皮材１５を取り付けてあるキャビティ３６ａ内の溶融樹脂を圧縮成形するので、樹脂材と表皮材１５との、より強固な接着を得ることができる。
さらに、第３の手法について説明する。
【００５８】
まず、この第３の手法でも、表皮材１５を取り付けてあるキャビティ３６ａ内の溶融樹脂を圧縮成形し、同時に表皮材１５の貼り付けを達成するまでは、前述した第２の手法と全く同じであるので、その説明は省略する〔図４（Ａ），（Ｅ），（Ｆ）に示す工程に対応〕。初めに表皮材貼り形状部のキャビティ３６ａのみを圧縮成形し、半固化した状態から、次に、油圧シリンダ２５ｄにより摺動部材３４を所定量だけ固定金型２７側へ引き込むとともに、再度、可動金型２６を固定金型２７に対して寸開し、ゲート弁５のみを開いて溶融樹脂通路２５ａと第２の溶融樹脂通路２５ｃ，２７ｃとを連通し、仕切り凸部２６ａ外側のキャビティ３６ｂ内に所定量の溶融樹脂を注入する〔図４（Ｇ）に示す工程に対応〕。
【００５９】
この後、ゲート弁５を閉じて第２の溶融樹脂通路２５ｃ，２７ｃを閉とし、再度、可動金型２６を固定金型２７側へ移動させて型締め側に移動し、仕切り凸部２６ａ外側のキャビティ３６ｂの溶融樹脂を圧縮成形する〔図４（Ｈ）に示す工程に対応〕。
これにより、図４（Ｄ）に示すような、部分表皮材１５と一体成形された部分表皮材貼り成形品が得られることになる。この第３の手法では、表皮材１５を取り付けてあるキャビティ３６ａ内およびそれ以外のキャビティ３６ｂ内の溶融樹脂を圧縮成形するので、樹脂材と表皮材１５とのより強固な接着が得られるとともに、歪みの少ない成形品を得ることができる。
【００６０】
このようにして、本発明の第２実施形態によっても、図５に示すように、表皮材１５の周縁が成形品の表面には露出せず、表皮材１５と非表皮材貼り部との境界が画然としたものになり、第１実施形態と全く同様の作用効果を得ることができる。
【００６１】
【発明の効果】
以上詳述したように、本発明の部分表皮材貼り成形用金型装置及びこれを用いた部分表皮材貼り成形方法（請求項１〜１０）によれば、表皮材の周縁部が、成形品肉厚の中に巻き込まれることになり、成形品の表面に露出せず、表皮材と非表皮貼り部との境界が画然としたものになるので、高品質の部分表皮材貼り成形品を簡素な構造で且つ安価に製造することができる。
【００６２】
また、本発明によれば、表皮材の取付位置が余程ずれない限り、成形品に貼り付けられた表皮材の見栄えはよくなるので、布類の裁断精度を厳しくしなくても、部分表皮材貼り成形品の品質が大幅に向上する。
さらに、本発明によれば、第１および第２の開閉機構を用いて第１および第２の溶融樹脂通路をそれぞれ開閉することにより、複数の金型や複数の成形機を用いることなく、１台の成形機と１組の金型（本発明の金型装置）とを使用して部分表皮材貼り成形と圧縮成形とを極めて容易に行なえる利点もある。
また、本発明の部分表皮貼り成型用金型装置（請求項２，７）によれば、仕切り板又は摺動部材が複数に分割されてアクチュエータに支持されているため、加工誤差や熱歪みに起因する拗れの発生を防止することができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態としての部分表皮材貼り成形用金型装置を示す縦断面図である。
【図２】第１実施形態における可動金型のキャビティ面を示す正面図（図１のＡ矢視図）である。
【図３】第１実施形態における固定金型のキャビティ面を示す正面図（図１のＢ矢視図）である。
【図４】（Ａ）〜（Ｈ）はいずれも第１実施形態の金型装置を用いて行なわれる部分表皮材貼り成形品の成形工程を説明するための模式的な縦断面図である。
【図５】第１実施形態の金型装置により成形された部分表皮材貼り成形品の表皮材周縁部の状態を示す部分断面図（図１１に対応する断面図）である。
【図６】本発明の第２実施形態としての部分表皮材貼り成形用金型装置を示す縦断面図である。
【図７】第２実施形態における可動金型のキャビティ面を示す正面図（図６のＣ矢視図）である。
【図８】第２実施形態における固定金型のキャビティ面を示す正面図（図６のＤ矢視図）である。
【図９】図６のＥ−Ｅ矢視断面図である。
【図１０】従来の部分表皮材貼り成形用金型装置を示す縦断面図である。
【図１１】従来の金型装置により部分表皮材貼り成形を行なったときの表皮材周縁部の状態を示す部分断面図である。
【符号の説明】
１ 固定金型
１Ａ キャビティ面
１ｂ 第１の溶融樹脂通路
１ｃ 第２の溶融樹脂通路
１ｄ 溝
２ 可動金型
２Ａ キャビティ面
２ｄ 油圧シリンダ（アクチュエータ）
４ ゲート弁（第１の開閉機構）
５ ゲート弁（第２の開閉機構）
６，６ａ〜６ｈ 仕切り板
１５ 表皮材
１６ａ，１６ｂ キャビティ
２５ 固定金型支持部材
２５ｂ 第１の溶融樹脂通路
２５ｃ 第２の溶融樹脂通路
２５ｄ 油圧シリンダ（アクチュエータ）
２６ 可動金型
２６Ａ キャビティ面
２６ａ 仕切り凸部
２７ 固定金型
２７Ａ キャビティ面
２７ｃ 第２の溶融樹脂通路
２７ｄ 第１の溶融樹脂通路
３４，３４ａ〜３４ｈ 摺動部材
３６ａ，３６ｂ キャビティ[0001]
BACKGROUND OF THE INVENTION
  The present invention provides a partial skin by attaching a skin material such as cloth or leather to a part of the surface of a molded product for practical use or decoration by a mold attached to a mold clamping device of an injection molding machine or the like. Mold device for partial skin material pasting for molding material pasted moldingAnd partial skin material pasting method using the sameAbout.
[0002]
[Prior art]
Parts made by resin molding are often used for interior parts such as vehicles, but in order to improve the touch, a part with a surface covering material such as cloth or leather attached to a part of the surface is also used. It has been. Such a molded article with a partial skin material is usually produced by pasting a skin material with an adhesive to a molded product after molding. However, in order to eliminate the use of adhesive and improve work efficiency, in the molding process, a skin material is attached in advance to a predetermined surface of the mold, and molten resin is injected and filled on the back surface side of the skin material. It has been desired to form a partial skin material-attached molded product by simultaneously attaching and molding the material, and several methods have been proposed in the past.
[0003]
For example, in Japanese Patent Laid-Open No. 60-212312, as a method of integrally attaching a skin material partly, two sets of molds are provided, a skin material is attached to the first mold, and molten resin is injected to perform intermediate molding. A technique is disclosed in which a product is prepared, the intermediate molded product is transferred to a second mold, and a molten resin is injected again to form a final molded product. However, in such a technique, two sets of molds are necessary, and the intermediate molded product needs to be transferred to another mold, so that the molding process of the partial skin material-attached molded product becomes complicated.
[0004]
Therefore, in Japanese Patent Application Laid-Open No. 7-195431, a movable mold is divided, a skin is attached to the middle mold, a partial injection molding is performed on the middle mold, and then the middle mold is slightly opened to perform secondary injection. A technique for forming a molded product basically using a set of molds is disclosed. An outline of this technique will be described with reference to FIG.
In FIG. 10, reference numeral 30 denotes a movable mold attached to the movable mold platen, and 20 denotes a core mold that can be moved relative to the mold 30 by a pressurizing means built in the movable mold 30. . Reference numeral 10 denotes a fixed mold, and the fixed mold 10 is formed with a plurality of molten resin gates 11a-1 and 11a-2.
[0005]
When a molded product is integrally molded with the skin material H using these molds 10, 20, and 30, first, the core mold 20 to which the skin material H is attached is moved to a predetermined position and the fixed mold 10 is moved. The mold is filled with molten resin from the gate 11a-1 for the core mold 20 of the fixed mold 10 into the cavity formed between the core mold 20 and the fixed mold 10. .
[0006]
Next, the movable mold 30 is closed while maintaining the position of the core mold 20, and the gate for the movable mold 30 is placed in the cavity formed between the movable mold 30 and the fixed mold 10. Molding is performed by injecting molten resin from 11a-2.
The gate 11a-2 for the movable mold 30 is opened at a later timing than the gate 11a-1 for the core mold 20, and the resin filled in the core mold 20 is formed between the groove 12 and the core. The molten resin injected from the gate 11a-2 for the movable mold 30 fills the inside of the mold cavity when it remains in an unsolidified state in the gap formed between the convex part 21 of the mold 20 and It comes into contact with the resin previously injected into the core mold 20 and is joined together.
[0007]
11 is a partial cross-sectional view showing the state of the peripheral portion of the skin material H when partial skin material pasting is performed using the molds 10 and 20 described above with reference to FIG.
[0008]
[Problems to be solved by the invention]
However, in the above-described conventional skin material integrated molding technique (Japanese Patent Laid-Open No. 7-195431), when the molten resin is injected into the mold cavity, the peripheral portion of the skin material H is pressed against the molten resin as shown in FIG. As a result, it is exposed to the surface of unnecessary portions, the boundary between the skin material and the non-skin-pasted portion is not clear, and the shape end portion varies, so that a high-quality molded product cannot be obtained. Moreover, since the movable mold is divided into two parts (see reference numerals 20 and 30 in FIG. 10), there is a problem that the mold apparatus has a complicated structure and is expensive.
[0009]
  The present invention was devised in view of such problems, and the peripheral edge of the skin material is not exposed on the surface of the molded product, so that the boundary of the skin material is clearly defined, and a high quality partial skin material-attached molded product is obtained. Mold device for partial skin material pasting molding that has a simple structure and can be manufactured at low cost.And partial skin material pasting method using the sameThe purpose is to provide.
[0010]
[Means for Solving the Problems]
  In order to achieve the above object, a partial skin material pasting molding die apparatus according to the present invention (Claim 1) is provided with a stationary mold and a mold that is placed opposite to the stationary mold and clamped to the stationary mold. The movable mold is composed of a movable mold, and the fixed mold and the movable mold are clamped with the skin material attached to the surface facing the fixed mold on the movable mold side. Forms a part of the skin material that is affixed to a part, and encloses the entire periphery of the skin material with the peripheral edge of the skin material attached to the movable mold folded to the fixed mold side. In addition, the movable mold is provided with a partition plate that can be freely moved between the movable mold and the fixed mold, and an actuator that drives the partition plate in and out, and the partition plate is located at a position facing the partition plate in the fixed mold. The tip of the partition plate is fitted when the mold is clamped. And forming a first groove and a second molten resin passage for injecting the molten resin into the cavity inside the partition plate in a fixed mold. The fixed mold is provided with first and second opening / closing mechanisms that are formed to open and close the first molten resin passage and the second molten resin passage, respectively.In addition, the actuator partitions the cavity by bringing the tip of the partition plate into contact with the bottom of the groove when the fixed mold and the movable mold are clamped.It is characterized by that.
  The partition plate includes a plurality of plate portions that are divided so as to surround the entire circumference of the skin material, and each of the plurality of plate portions is an actuator so that flexibility in the position in the thickness direction and the width direction is effective. (Claim 2).
[0011]
In the above-described mold apparatus for pasting and forming a skin material, the partition plate is projected to the fixed mold side by an actuator when the mold is clamped, and the tip of the partition plate is brought into contact with the bottom of the groove. The cavity of the skin material pasting shape part where the skin material is pasted is partitioned, and (2) only the first molten resin passage is opened by the first opening / closing mechanism, and the molten resin is injected into the cavity inside the partition plate to make the skin After forming the material pasting shape part, (3) the partition plate is drawn by a predetermined amount to the movable mold side by the actuator, and (4) the second opening / closing mechanism is used to open only the second molten resin passage, thereby separating the partition plate. The molten resin may be injected into the outer cavity, and the outer part of the partition plate may be formed integrally with the skin material pasting shape part (claim 2).
[0012]
Further, in the mold apparatus for partial skin material pasting according to claim 1, the partition plate is moved by the actuator in the state where the movable mold is opened with respect to the fixed mold from the fully closed position. By projecting to the fixed mold side and bringing the tip of the partition plate into contact with the bottom of the groove, the cavity of the skin material pasting portion to which the skin material is pasted is defined, and (2) the first molten resin by the first opening / closing mechanism Only the passage is opened, a predetermined amount of molten resin is injected into the cavity inside the partition plate, and (3) the movable mold is moved to the fixed mold side, the mold is clamped, and only the skin material pasting part is compression molded. After that, (4) the actuator pulls the partition plate to the movable mold side by a predetermined amount, and (5) the second opening / closing mechanism opens only the second molten resin passage to melt the molten resin into the cavity outside the partition plate. Inject the partition plate outside Min may be molded integrally with the skin material adhered shaped portion (claim 3).
[0013]
Further, in the mold apparatus for partial skin material pasting according to claim 1 described above, in the state where the movable mold is opened with respect to the fixed mold from the fully closed position, the partition plate is moved by the actuator. By projecting to the fixed mold side and bringing the tip of the partition plate into contact with the bottom of the groove, the cavity of the skin material pasting portion to which the skin material is pasted is defined. Only the passage is opened, a predetermined amount of molten resin is injected into the cavity inside the partition plate, and (3) the movable mold is moved to the fixed mold side, the mold is clamped, and only the skin material pasting part is compression molded. (4) The actuator pulls the partition plate to the movable mold side by a predetermined amount by the actuator, and again opens the movable mold with respect to the fixed mold. (5) The second opening / closing mechanism Only the molten resin passage is opened and outside the partition plate A predetermined amount of molten resin is injected into the cavity, and (5) again, the movable mold is moved to the fixed mold side to perform mold clamping, and the outer part of the partition plate is integrated with the skin material pasting shape part. You may compression-mold (Claim 4).
[0014]
  With the above-described configuration, the mold apparatus for partial skin material pasting molding of the present invention (claim 1), 2) and partial skin material pasting method using the same (claims 3-5)), The peripheral edge of the skin material attached to the part surrounded by the partition plate is supported by the partition plate and bent to the fixed mold side, and the mold is clamped and molded by the first injection of molten resin. After that, by pulling the partition plate to the movable mold side, the peripheral part of the skin material is caught in the thickness of the molded product by the second injection of the molten resin, and is not exposed to the surface of the molded product. The boundary between the skin material and the non-skin-applied portion becomes distinct.
  Moreover, according to the mold apparatus for partial skin material pasting molding of the present invention (Claim 2), it is possible to prevent the occurrence of wobbling between the groove of the movable mold and the partition plate due to processing error and thermal distortion.
[0015]
  On the other hand, the mold apparatus for partial skin material pasting molding of the present invention (claims)6) Is composed of a fixed mold and a movable mold that is placed opposite to the fixed mold and moves with respect to the fixed mold, and the skin is placed on the surface facing the fixed mold on the movable mold side. The fixed mold and the movable mold are clamped in a state where the material is attached to form a partial skin material-attached molded product in which the skin material is bonded to a part of the surface, and the movable mold In the state where the peripheral edge of the skin material attached to the fixed mold is bent to the fixed mold side, a partition convex part surrounding the entire periphery of the skin material is formed on the movable mold, and at the position facing the partition convex part in the fixed mold And a sliding member having a width wider than the tip width of the partition projection and capable of coming into contact with the tip of the partition projection during mold clamping so as to be slidable in the moving direction of the movable mold. The actuator that slides and drives is provided on the fixed mold side, and the molten resin is divided into the projections. Forming a first molten resin passage for injecting into the cavity and a second molten resin passage for injecting the molten resin into the cavity outside the partition convex portion in the fixed mold, and the first molten resin passage and Provided with first and second opening / closing mechanisms for opening and closing the second molten resin passage, respectively.At the same time, the actuator has a skin material pasting shape in which the sliding member is slid toward the movable mold side when the stationary mold and the movable mold are clamped, and the tip of the partition convex portion is brought into contact with the skin material. Divide the cavity of the partIt is characterized by that.
  In addition, it is preferable that a sliding member is provided with the some sliding part divided | segmented along the peripheral part of a skin material, and each several sliding part is supported by an actuator.
[0016]
6. The mold apparatus for partial skin material pasting according to claim 5, wherein the sliding member is slid to the movable mold side by the actuator and brought into contact with the tip of the partition convex portion when the mold is clamped. The cavity of the skin material pasting shape part to which the material is pasted is partitioned, and (2) only the first molten resin passage is opened by the first opening / closing mechanism, and the molten resin is injected into the cavity inside the partitioning convex portion to make the skin After forming the material pasting shape part, (3) the sliding member is pulled by a predetermined amount to the fixed mold side by the actuator, and (4) only the second molten resin passage is opened and partitioned by the second opening / closing mechanism. The molten resin may be injected into the cavity outside the convex part, and the part outside the partition convex part may be formed integrally with the skin material pasting shape part (Claim 6).
[0017]
Further, in the mold apparatus for partial skin material pasting according to claim 5, the sliding member is moved by the actuator while the movable mold is opened with respect to the fixed mold from the fully closed position. Is slid to the movable mold side and is brought into contact with the tip of the partition convex portion to partition the cavity of the skin material pasting portion to which the skin material is pasted, and (2) the first molten resin passage by the first opening / closing mechanism Open only the mold, inject a predetermined amount of molten resin into the cavity inside the partition convex part, and (3) move the movable mold to the fixed mold side to perform mold clamping and compress only the skin material pasting part. (4) The sliding member is pulled by a predetermined amount to the fixed mold side by the actuator, and (5) only the second molten resin passage is opened by the second opening / closing mechanism to enter the cavity outside the partition convex portion. Inject molten resin, Min may be molded integrally with the skin material adhered shaped portion (claim 7).
[0018]
Furthermore, in the above-mentioned partial skin material pasting molding die apparatus according to claim 5, (1) the sliding member is moved by the actuator in a state where the movable mold is opened with respect to the fixed mold from the fully closed position. Is slid to the movable mold side and is brought into contact with the tip of the partition convex portion to partition the cavity of the skin material pasting portion to which the skin material is pasted. Open only the mold, inject a predetermined amount of molten resin into the cavity inside the partition convex part, and (3) move the movable mold to the fixed mold side to perform mold clamping and compress only the skin material pasting part. Then, (4) the actuator pulls the sliding member by a predetermined amount toward the fixed mold side, and again opens the movable mold with respect to the fixed mold, and (5) the second opening / closing mechanism causes the second Only the molten resin passage is opened and the partition convex part outside A predetermined amount of molten resin is injected into the cavity, and (6) again, the movable mold is moved to the fixed mold side to perform clamping, and the part outside the partition convex part is integrated with the skin material pasting part. You may compression-mold (Claim 8).
[0019]
  With the above-described configuration, the mold apparatus for partial skin material pasting molding of the present invention (claims)6, 7) and partial skin material pasting method using the same (Claims 8 to 10)), The peripheral part of the skin material attached to the part surrounded by the partition convex part is supported by the partition convex part and bent to the fixed mold side, and the mold is clamped and molded by the first injection of molten resin By pulling the sliding member to the fixed mold side after performing the above, the peripheral portion of the skin material is caught in the thickness of the molded product by the second injection of molten resin, and the surface of the molded product is It is not exposed, and the boundary between the skin material and the non-skin-applied portion becomes distinct.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
The mold apparatus in the embodiment of the present invention is a mold attached to a mold clamping device of a molding machine such as an injection molding machine, and a skin material is affixed to a part of the surface of a molded product for practical use or decoration, For manufacturing a partial skin material-attached molded product, after the work of attaching the skin material to the mold cavity surface, various mechanisms and mold clamping devices (not shown) provided in the mold have functions All of this is done automatically.
[0021]
(A) Description of the first embodiment
1 to 3 show a partial skin material pasting molding die device as a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a front view showing a cavity surface of the movable die. FIG. 3 (viewed in the direction of arrow A in FIG. 1) and FIG. 3 are front views showing the cavity surface of the fixed mold (viewed in the direction of arrow B in FIG. 1). 4 (A) to 4 (H) are schematic longitudinal sectional views for explaining a molding process of a partial skin material-attached molded product performed using the mold apparatus of the first embodiment, FIG. FIG. 12 is a partial cross-sectional view (cross-sectional view corresponding to FIG. 11) showing a state of a peripheral portion of a skin material of a molded product with a partial skin material molded by the mold apparatus of the first embodiment.
[0022]
As shown in FIG. 1, the mold apparatus according to the first embodiment includes a fixed mold 1, a movable mold 2 that is installed opposite to the fixed mold 1 and moves with respect to the fixed mold 1. The fixed mold 1 and the movable mold 2 are clamped with the skin material 15 attached to the surface (cavity surface 2A) facing the fixed mold 1 on the movable mold 2 side. The partial skin material pasted product in which the skin material 15 is pasted on a part of the surface is molded.
[0023]
As shown in FIGS. 1 and 2, the movable mold 2 has a slit-shaped groove 2 a having a constant width opened on the cavity surface 2 </ b> A side, and the shape of the peripheral portion of the skin material 15 attached to the movable mold 2. Is formed by being cut endlessly along the slit and communicated with the slit-shaped groove 2a.In this embodiment,Eight cylindrical holes 2b are formed at substantially equal intervals along the slit-like groove 2a so as to open on the side opposite to the cavity surface 2A. These cylindrical holes 2b are respectively formed corresponding to eight portions 6a to 6h constituting a partition plate 6 described later.
[0024]
In the slit-shaped groove 2a, as shown in FIG.In this embodiment,The partition plate 6 (6a to 6h) divided into eight sheets surrounds the entire circumference of the skin material 15 in a state where the peripheral edge portion of the skin material 15 attached to the movable mold 2 is bent toward the fixed mold 1 side. In addition, it is inserted between the movable mold 2 and the fixed mold 1 so as to freely enter and exit. Each of these eight partition plates 6a to 6h is pinned by a pin 17 to one end side of the support bar 9 fitted in the cylindrical hole 2b, and the other end side of each support bar 9 is It is fixed to the partition plate support member 7 arranged on the opposite side to the cavity surface 2A.
[0025]
At this time, as described above, the partition plate 6 is divided into eight portions 6a to 6h, and each portion 6a to 6h is pinned to each support rod 9 fixed to the partition plate support member 7, When the partition plate 6 (6a to 6h) is inserted into the slit-shaped groove 2a, the partition plate 6 is held so that the position in the thickness direction and the width direction is effective, resulting from processing errors and thermal distortion. It is possible to prevent the occurrence of sag between the slit groove 2a of the movable mold 2 and the partition plate 6.
[0026]
Further, a hydraulic cylinder (actuator) 2c for driving the partition plate 6 (6a to 6h) in and out is formed in the movable mold 2, and the partition plate support member 7 is a piston that slides in the hydraulic cylinder 2c. It is connected to 2d via a rod 8. Therefore, by supplying pressure oil to the oil chambers before and after the piston 2d, the partition plate 6 (6a to 6h) is guided to the slit-like groove 2a via the rod 8, the partition plate support member 7 and the support rods 9. However, it is driven in and out of the cavity between the molds 1 and 2 in the front-rear direction (left-right direction in FIG. 1). The partition plate 6 can be stopped at an appropriate position at any time by adjusting the supply of pressure oil to the hydraulic cylinder 2c.
[0027]
On the other hand, as shown in FIGS. 1 and 3, a groove 1d having a certain depth is formed in the molded product at a position facing the partition plate 6 on the cavity surface 1A of the fixed mold 1.pastingAn endless shape is formed in accordance with the outer shape of the partial skin material 15 to be formed. The groove 1d has a width wider than the tip width of the partition plate 6, and the tip of the partition plate 6 protruding from the cavity surface 2A of the movable mold 2 is fitted and comes into contact with the bottom surface during mold clamping. It has become.
[0028]
In addition, molten resin passages 1 a, 1 b and 1 c are formed inside the fixed mold 1. The molten resin passage 1a communicates with a molten resin inlet 1e formed on the surface opposite to the cavity surface 1A of the fixed mold 1, and is branched into two to be divided into the first molten resin passage 1b and the first The two molten resin passages 1c are connected to each other through gate valves (first and second opening / closing mechanisms) 4 and 5, respectively.
[0029]
The first molten resin passage 1b is for injecting molten resin into the cavity 16a inside the partition plate 6, and the second molten resin passage 1c is for injecting molten resin into the cavity 16b outside the partition plate 6. Is. The first molten resin passage 1b and the second molten resin passage 1c can be switched between open and closed states by contacting / disconnecting the molten resin passage 1a with the gate valves 4 and 5, respectively. It has become. The gate valves 4 and 5 are each opened and closed by a drive mechanism (not shown).
[0030]
Note that an injection nozzle 3 (see a two-dot chain line in FIG. 1) for injecting the molten resin is pressed against the molten resin inlet 1e of the fixed mold 1 during operation. In FIG. 1, when the fixed mold 1 and the movable mold 2 are clamped, the partition plate 6 protrudes toward the fixed mold 1 and the tip of the partition plate 6 is brought into contact with the bottom of the groove 1 d. A state in which the cavity 16a of the skin material pasting shape portion to which the skin material 15 is pasted is defined and a molten resin is injected into the cavity 16a (a state corresponding to FIG. 4B) is shown.
[0031]
Next, with respect to the molding process of the partial skin material pasted product performed using the mold device for partial skin material pasting molding as the first embodiment of the present invention configured as described above, FIGS. This will be described with reference to (H). Here, three types of molding methods using the mold apparatus of the present embodiment will be described.
The first method will be described with reference to FIGS. 4A to 4D in order.
[0032]
First, as shown in FIG. 4A, the partition plate 6 of the movable mold 2 is protruded from the cavity surface 2 </ b> A, and the skin material 15 is attached to the mold cavity surface 2 </ b> A surrounded by the partition plate 6. As a mounting method at this time, a temporary mounting method using vacuum suction, a stab pin, an opening / closing tape, a hook-and-loop fastener, or the like is used.
Next, as shown in FIG. 4B, the movable mold 2 is moved to the fixed mold 1 side to perform clamping, and the partition plate 6 is caused to protrude toward the fixed mold 1 by the hydraulic cylinder 2c. The cavity 16a of the skin material pasting shape portion to which the skin material 15 is pasted is defined by bringing the tip of the material into contact with the bottom of the groove 1d. Then, only the gate valve 4 is opened while the gate valve 5 is closed, the molten resin passage 1a and the first molten resin passage 1b are communicated, and the molten resin is injected into the cavity 16a inside the partition plate 6 so as to cover the skin material. The pasted part is injection molded.
[0033]
Thereafter, as shown in FIG. 4C, at a timing before the resin in the cavity 16a is solidified, the gate valve 4 is closed, and the partition plate 6 is pulled into the movable mold 2 side by a predetermined amount by the hydraulic cylinder 2c. Then, after providing a space between the tip of the partition plate 6 and the groove 1d of the fixed mold 1, only the gate valve 5 is opened to allow the molten resin passage 1a and the second molten resin passage 1c to communicate with each other. 6 Molten resin is injected into the outer cavity 16b and injection molding is performed. In this step, the molten resin injected later fills the space in which the partition plate 6 has been retracted, and comes into contact with and assimilate the resin before solidification injected before. Thereafter, when the gate valve 5 is closed, the molten resin is cooled and solidified, and the molded product is released, a partial skin material-attached molded product integrally molded with the partial skin material 15 as shown in FIG. Will be obtained.
[0034]
The second method will be described with reference to FIGS. 4A, 4E, 4F, 4C, and 4D in order.
First, as shown in FIG. 4A, the partition plate 6 of the movable mold 2 is protruded from the cavity surface 2A and the skin material 15 is attached to the mold cavity surface 2A surrounded by the partition plate 6 as described above. .
[0035]
Next, as shown in FIG. 4 (E), the movable mold 2 is brought into a state of being opened relative to the fixed mold 1 with respect to the mold fully closed position..That is, it stops at a position opened by a small dimension e, and the partition plate 6 is fixed to the fixed mold by the hydraulic cylinder 2c while maintaining that state.1By projecting to the side and bringing the tip of the partition plate 6 into contact with the bottom of the groove 1d, the cavity 16a of the skin material pasting portion to which the skin material 15 is pasted is defined. In this state, with the gate valve 5 closed, only the gate valve 4 is opened to connect the molten resin passage 1a and the first molten resin passage 1b, and a predetermined amount of molten resin is put into the cavity 16a inside the partition plate 6. inject.
[0036]
Then, as shown in FIG. 4 (F), after closing the gate valve 4 and closing the molten resin passage 1b, the movable mold 2 is moved in the direction indicated by the arrow (clamping direction, right direction in the figure), The molten resin in the cavity 16a to which the skin material 15 is attached is compression-molded, and at the same time, the skin material 15 is attached.
Thereafter, the process proceeds to the step shown in FIG. 4C, and the partition plate 6 is pulled into the movable mold 2 side by a predetermined amount by the hydraulic cylinder 2c at the timing before the resin in the cavity 16a is solidified, as described above. Then, after providing a space between the tip of the partition plate 6 and the groove 1d of the fixed mold 1, only the gate valve 5 is opened to allow the molten resin passage 1a and the second molten resin passage 1c to communicate with each other. 6 Molten resin is injected into the outer cavity 16b and injection molding is performed. In this step, the molten resin injected later fills the space in which the partition plate 6 has been retracted, and comes into contact with and assimilate the resin before solidification injected before. Thereafter, the gate valve 5 is closed, the molten resin is cooled and solidified, and the molded product is released.
[0037]
Thereby, also by the 2nd method, the partial skin material sticking molded product integrally molded with the partial skin material 15 as shown in FIG.4 (D) is obtained. In the second method, since the molten resin in the cavity 16a to which the skin material 15 is attached is compression-molded, stronger adhesion between the resin material and the skin material 15 can be obtained.
The third method will be described with reference to FIGS. 4A, 4E, 4F, 4G, 5H, and 4D in order.
[0038]
First, since the state shown in FIGS. 4A to 4F is the same as the second method described above, description thereof is omitted. First, only the cavity 16a of the skin material pasting shape portion is compression-molded and semi-solidified, and then the partition plate 6 is moved by the hydraulic cylinder 2c as shown in FIG. 4 (G). The movable mold 2 is drawn by a predetermined amount toward the movable mold 2 side, and the movable mold 2 is opened again by the dimension e with respect to the fixed mold 1, and only the gate valve 5 is opened to open the molten resin passage 1a and the second molten resin. A predetermined amount of molten resin is injected into the cavity 16b outside the partition plate 6 through the passage 1c.
[0039]
Thereafter, as shown in FIG. 4 (H), the gate valve 5 is closed to close the second molten resin passage 1c, and the movable mold 2 is moved again to the fixed mold 1 side to the mold clamping side. It moves and compression molds the molten resin in the cavity 16b outside the partition plate 6.
As a result, a partial skin material pasted product integrally molded with the partial skin material 15 as shown in FIG. 4D is obtained. In this third method, since the molten resin in the cavity 16a to which the skin material 15 is attached and in the other cavity 16b is compression-molded, stronger adhesion between the resin material and the skin material 15 can be obtained, A molded product with less distortion can be obtained.
[0040]
FIG. 5 shows the state of the periphery of the skin material of the partially skinned material molded product molded by the above-described methods. As shown in FIG. 11, the molded product with the conventional core mold (with the fixed partition plate) is exposed on the surface of the molded product with the peripheral edge of the skin material exceeding the partition plate portion (convex portion 21). Therefore, the trimming shape of the skin material, the mounting error, the shift during the molding operation, and the like may reduce the product value and deteriorate the product yield.
[0041]
On the other hand, according to the present embodiment, since the partition plate 6 has an action to be retracted before the second-stage injection molding, the molten resin injected the second time is the peripheral edge of the skin material 15. As shown in FIG. 5, the periphery of the skin material 15 is not exposed on the surface of the molded product, and the boundary between the skin material 15 and the non-skin material pasting portion becomes obvious.
Therefore, a high quality partial skin material pasted product can be manufactured with a simple structure and at a low cost.
[0042]
In addition, as long as the attachment position of the skin material 15 does not deviate much, the appearance of the skin material 15 affixed to the molded product is improved. Therefore, even if the cutting accuracy of the cloth is not strict, The quality is greatly improved.
Further, by opening and closing the molten resin passages 1b and 1c using the gate valves 4 and 5, respectively, one molding machine and one set of molds 1 and 1 can be used without using a plurality of molds or a plurality of molding machines. 2 can be used to perform the partial skin material pasting and compression molding very easily.
[0043]
(B) Description of the second embodiment
6 to 9 show a partial skin material pasting molding die device as a second embodiment of the present invention, FIG. 6 is a longitudinal sectional view thereof, and FIG. 7 is a front view showing a cavity surface of the movable die. FIG. 8 is a front view showing the cavity surface of the fixed mold (D view of FIG. 6), and FIG. 9 is a cross-sectional view of FIG. .
[0044]
As shown in FIG. 6, the mold apparatus according to the second embodiment also includes a fixed mold 27, a movable mold 26 that is installed opposite to the fixed mold 27 and moves with respect to the fixed mold 27. The fixed mold 27 and the movable mold 26 are clamped with the skin material 15 attached to the surface (cavity surface 26A) facing the fixed mold 27 on the movable mold 26 side. The partial skin material pasted product in which the skin material 15 is pasted on a part of the surface is molded.
[0045]
As shown in FIGS. 6 and 7, the movable mold 26 is formed with partition convex portions 26 a having a constant height. The partition projections 26 a are formed so as to surround the entire periphery of the skin material 15 in a state where the peripheral edge portion of the skin material 15 attached to the cavity 26 A of the movable mold 26 is bent toward the fixed mold 27.
Further, as shown in FIGS. 6 and 8, the fixed mold 27 has a width that is wider than the tip width of the partition convex portion 26a at the position facing the partition convex portion 26a, and the partition convex portion 26a during mold clamping. A sliding member 34 (34a to 34h) that can come into contact with the tip of the movable die 26 is provided so as to be slidable in the moving direction (mold clamping direction) of the movable mold 26.
[0046]
That is, the slit-like groove 27a having a constant width (approximately the width of the sliding member 34) opened on the cavity surface 27A side is cut endlessly along the shape of the peripheral edge of the skin material 15 attached to the movable mold 26. It is rarely formed and communicates with the slit-shaped groove 27a.In this embodiment,Eight cylindrical holes 27b are formed at substantially equal intervals along the slit-like groove 27a so as to open on the opposite side to the cavity surface 27A. These cylindrical holes 27b are formed corresponding to eight portions 34a to 34h constituting a sliding member 34 described later.
[0047]
In the slit groove 27a, as shown in FIG.In this embodiment,A sliding member 34 (34 a to 34 h) divided into eight parts is inserted so as to be slidable in the moving direction of the movable mold 26. When the sliding member 34 moves (advances) to the movable mold 26 side, it comes into contact with the tip of the partition convex portion 26a of the movable mold 26 (see the solid line in FIG. 6).
The portions 34a to 34h constituting the sliding member 34 are fixed to one end side of the support bar 35 fitted into the cylindrical hole 27b, and the other end side of each support bar 35 is defined as the cavity surface 27A. It is connected with respect to the sliding member support plate 32 arranged on the opposite side. At this time, as shown in FIG. 9, a ring-shaped groove 35 a is formed on the other end side of each support rod 35, and this ring-shaped groove 35 a is formed in the peripheral portion of the sliding member support plate 32. By engaging with the notch hole 32a, each support bar 35 is supported by the sliding member support plate 32 while restraining the mold clamping direction.
[0048]
By the way, in 2nd Embodiment, the fixed mold 27 was fixedly supported by the fixed mold support member 25, and was formed between these fixed mold 27 and the fixed mold support member 25. In the space, the above-mentioned sliding member support plate 32 is provided so as to be movable in the mold clamping direction.
The fixed mold support member 25 is formed with a hydraulic cylinder (actuator) 25d for slidingly driving the slide members 34 (34a to 34h), and the slide member support plate 32 is disposed in the hydraulic cylinder 25d. A rod 33 is connected to the sliding piston 25e. Accordingly, by supplying pressure oil to the oil chambers before and after the piston 25e, the sliding member 34 (34a to 34h) is inserted into the slit-like groove 27a via the rod 33, the sliding member support plate 32, and the support rods 35. While being guided, it is slidably driven in the front-rear direction (left-right direction in FIG. 6). The sliding member 34 can be stopped at an appropriate position at any time by adjusting the pressure oil supply to the hydraulic cylinder 25d. In FIG. 6, a state in which the sliding member 34 is updated and driven by the hydraulic cylinder 25 d and the tip of the sliding member 34 is separated from the partition convex portion 26 a of the movable mold 26 is indicated by a two-dot chain line.
[0049]
On the other hand, as shown in FIGS. 6, 8, and 9, molten resin passages 25 a, 25 b, and 25 c are formed inside the fixed mold support member 25. The molten resin passage 25a communicates with a molten resin inlet 25f formed on the surface of the fixed mold support member 25 on the side opposite to the fixed mold 27. The first molten resin passage 25b and the second molten resin are connected to the molten resin passage 25a. The passage 25c is communicatively connected via gate valves (first and second opening / closing mechanisms) 4 and 5, respectively.
[0050]
Further, the first molten resin passage 25b of the fixed mold support member 25 is connected in communication with a first molten resin passage 27d formed inside the fixed mold 27, and by these molten resin passages 25b and 27d, Molten resin is injected into the cavity 36a inside the partition convex portion 26a. Similarly, the second molten resin passage 25c of the fixed mold support member 25 is connected in communication with a second molten resin passage 27c formed inside the fixed mold 27, and these molten resin passages 25c and 27c allow The molten resin is injected into the cavity 36b outside the partition convex portion 26a. The first molten resin passages 25b and 27d and the second molten resin passages 25c and 27c are opened / closed by being connected / disconnected to the molten resin passage 25a by the gate valves 4 and 5, respectively. It can be switched. The gate valves 4 and 5 are each opened and closed by a drive mechanism (not shown).
[0051]
Note that an injection nozzle 3 (see a two-dot chain line in FIG. 6) for injecting the molten resin is pressed against the molten resin inlet 25f of the fixed mold support member 25 during operation. Further, in FIG. 6, when the fixed mold 27 and the movable mold 26 are clamped, the cavity of the skin material pasting shape portion where the skin material 15 is pasted by bringing the sliding member 34 into contact with the partition convex portion 26 a. A state is shown in which 36a is partitioned and molten resin is injected into the cavity 36a.
[0052]
Even using the partial skin material pasting molding die device as the second embodiment of the present invention configured as described above, the partial skin material according to the same procedure as the three molding methods described above in the first embodiment. Pasting can be performed. The difference between the first embodiment and the second embodiment is that the partition plate 6 is driven in and out in the first embodiment when the partial skin material pasting portion is enclosed and partitioned in the mold clamping / molten resin injection step. On the other hand, in the second embodiment, only the sliding member 34 is slidably driven, and the other steps are performed in substantially the same manner as the steps shown in FIGS.
[0053]
That is, in the first method, first, the skin material 15 is attached to the mold cavity surface 26A surrounded by the partition convex portion 26a of the movable mold 26 (corresponding to the process shown in FIG. 4A). As a mounting method at this time, a temporary mounting method using vacuum suction, a stab pin, an opening / closing tape, a hook-and-loop fastener, or the like is used.
Next, the movable mold 26 is moved to the fixed mold 27 side to perform clamping, and the sliding member 34 is slid to the movable mold 26 side by the hydraulic cylinder 25d and brought into contact with the tip of the partition projection 26a. Thus, the cavity 36a of the skin material pasting shape portion to which the skin material 15 is pasted is defined. Then, with the gate valve 5 closed, only the gate valve 4 is opened to allow the molten resin passage 25a to communicate with the first molten resin passages 25b and 27d, and the molten resin is injected into the cavity 36a inside the partition convex portion 26a. Then, the skin material pasting shape portion is injection molded [corresponding to the step shown in FIG. 4B].
[0054]
Thereafter, at a timing before the resin in the cavity 36a is solidified, the gate valve 4 is closed, and the sliding member 34 is pulled into the fixed mold 27 side by a predetermined amount by the hydraulic cylinder 25d, and slides on the tip of the partition convex portion 26a. After providing a space between the moving member 34, only the gate valve 5 is opened, the molten resin passage 25a communicates with the second molten resin passages 25c, 27c, and the molten metal is melted into the cavity 36b outside the partition convex portion 26a. Injection molding is performed by injecting resin. In this step, the molten resin injected later fills the space in which the sliding member 34 is retracted, and comes into contact with and assimilate the previously injected resin before solidification (corresponding to the step shown in FIG. 4C). Thereafter, when the gate valve 5 is closed, the molten resin is cooled and solidified, and the molded product is released from the mold, it is integrally formed with the partial skin material 15 as shown in FIG. 4D, as in the first embodiment. A partial skin material-attached molded product is obtained.
[0055]
Next, the second method will be described.
First, as described above, the skin material 15 is attached to the mold cavity surface 26A surrounded by the partition projection 26a of the movable mold 26 (corresponding to the process shown in FIG. 4A).
Next, in a state where the movable mold 26 is opened from the fully closed position with respect to the fixed mold 27, the sliding member 34 is slid to the movable mold 26 side by the hydraulic cylinder 25d, and the partition projection 26a is formed. By making contact with the tip, the cavity 36a of the skin material pasting portion to which the skin material 15 is pasted is defined. In this state, with the gate valve 5 closed, only the gate valve 4 is opened to allow the molten resin passage 25a to communicate with the first molten resin passages 25b and 27d, and a predetermined amount enters the cavity 36a inside the partition convex portion 26a. Molten resin is injected [corresponding to the step shown in FIG. 4E].
[0056]
Then, after closing the gate valve 4 and the molten resin passages 25b and 27d, the movable mold 26 is moved in the mold clamping direction, and the molten resin in the cavity 36a to which the skin material 15 is attached is compression-molded. Attaching the skin material 15 is achieved (corresponding to the step shown in FIG. 4F).
Thereafter, as in the first method described above, at a timing before the resin in the cavity 36a is solidified, the hydraulic cylinder 25d pulls the sliding member 34 to the fixed mold 27 side by a predetermined amount, and the partition projection 26a After providing a space between the tip and the sliding member 34, only the gate valve 5 is opened to connect the molten resin passage 25a and the second molten resin passages 25c, 27c, and the cavity 36b outside the partition convex portion 26a. Injection molding is performed by injecting molten resin into the inside [corresponding to the step shown in FIG. 4C]. In this step, the molten resin injected later fills the space in which the sliding member 34 is retracted, and comes into contact with and assimilate the pre-solidified resin injected before. Thereafter, the gate valve 5 is closed, the molten resin is cooled and solidified, and the molded product is released.
[0057]
Thereby, also by the 2nd method, the partial skin material sticking molded product integrally molded with the partial skin material 15 as shown in FIG.4 (D) is obtained. In the second method, since the molten resin in the cavity 36a to which the skin material 15 is attached is compression-molded, stronger adhesion between the resin material and the skin material 15 can be obtained.
Further, the third method will be described.
[0058]
First, even in this third method, the molten resin in the cavity 36a to which the skin material 15 is attached is compressed and molded, and at the same time, the pasting of the skin material 15 is achieved. Therefore, the description thereof is omitted (corresponding to the steps shown in FIGS. 4A, 4E, and 4F). First, from the state where only the cavity 36a of the skin material pasting shape portion is compression-molded and semi-solidified, the sliding member 34 is then drawn by a predetermined amount by the hydraulic cylinder 25d to the fixed mold 27 side, and again the movable metal The mold 26 is opened with respect to the fixed mold 27, only the gate valve 5 is opened, the molten resin passage 25a communicates with the second molten resin passages 25c, 27c, and the cavity 26b outside the partition convex portion 26a is communicated. A predetermined amount of molten resin is injected [corresponding to the step shown in FIG. 4G].
[0059]
Thereafter, the gate valve 5 is closed to close the second molten resin passages 25c and 27c, and the movable mold 26 is moved again to the fixed mold 27 side to move to the mold clamping side, and the partition convex portion 26a outside. The molten resin in the cavity 36b is compression molded (corresponding to the step shown in FIG. 4H).
As a result, a partial skin material pasted product integrally molded with the partial skin material 15 as shown in FIG. 4D is obtained. In this third method, since the molten resin in the cavity 36a to which the skin material 15 is attached and in the other cavity 36b is compression-molded, stronger adhesion between the resin material and the skin material 15 can be obtained, A molded product with less distortion can be obtained.
[0060]
Thus, also in the second embodiment of the present invention, as shown in FIG. 5, the periphery of the skin material 15 is not exposed on the surface of the molded product, and the boundary between the skin material 15 and the non-skin material pasting portion. Therefore, the same effects as those of the first embodiment can be obtained.
[0061]
【The invention's effect】
  As detailed above, the mold apparatus for partial skin material pasting of the present inventionAnd partial skin material pasting method using the same(Claims 1 to10), The peripheral edge of the skin material will be caught in the thickness of the molded product, it will not be exposed on the surface of the molded product, and the boundary between the skin material and the non-skin-pasted part will be clear Therefore, a high-quality partial skin material-attached molded product can be manufactured with a simple structure and at a low cost.
[0062]
  Further, according to the present invention, the appearance of the skin material attached to the molded product is improved as long as the attachment position of the skin material is not significantly shifted, so the partial skin material can be obtained without strict cutting accuracy of the cloth. The quality of the pasted product is greatly improved.
  Furthermore, according to the present invention, the first and second molten resin passages are opened and closed using the first and second opening / closing mechanisms, respectively, so that a plurality of molds and molding machines can be used without using a plurality of molds or a plurality of molding machines. There is also an advantage that partial skin material pasting and compression molding can be performed very easily using a base molding machine and a set of molds (the mold apparatus of the present invention).
  Further, according to the mold apparatus for partial skin pasting of the present invention (Claims 2 and 7), since the partition plate or the sliding member is divided into a plurality of parts and supported by the actuator, processing errors and thermal distortion are reduced. It is possible to prevent the occurrence of drowning.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a partial skin material pasting molding die device as a first embodiment of the present invention.
FIG. 2 is a front view (a view taken in the direction of arrow A in FIG. 1) showing a cavity surface of the movable mold in the first embodiment.
3 is a front view showing a cavity surface of the fixed mold in the first embodiment (viewed in the direction of arrow B in FIG. 1).
FIGS. 4A to 4H are schematic longitudinal sectional views for explaining a molding process of a partial skin material pasted product performed using the mold apparatus of the first embodiment.
FIG. 5 is a partial cross-sectional view (a cross-sectional view corresponding to FIG. 11) showing a state of a peripheral portion of the skin material of a molded product with a partial skin material molded by the mold apparatus according to the first embodiment.
FIG. 6 is a longitudinal sectional view showing a partial skin material pasting molding die device as a second embodiment of the present invention.
FIG. 7 is a front view (a view taken in the direction of arrow C in FIG. 6) showing a cavity surface of the movable mold in the second embodiment.
FIG. 8 is a front view showing a cavity surface of a fixed mold according to a second embodiment (as viewed from arrow D in FIG. 6).
9 is a cross-sectional view taken along the line E-E in FIG. 6;
FIG. 10 is a longitudinal sectional view showing a conventional mold apparatus for partial skin material pasting.
FIG. 11 is a partial cross-sectional view showing a state of a peripheral portion of a skin material when partial skin material pasting is performed by a conventional mold apparatus.
[Explanation of symbols]
1 Fixed mold
1A Cavity surface
1b First molten resin passage
1c Second molten resin passage
1d groove
2 Movable mold
2A cavity surface
2d Hydraulic cylinder (actuator)
4 Gate valve (first opening / closing mechanism)
5 Gate valve (second opening / closing mechanism)
6,6a ~ 6h Partition plate
15 Skin material
16a, 16b cavity
25 Fixed mold support member
25b First molten resin passage
25c Second molten resin passage
25d Hydraulic cylinder (actuator)
26 Movable mold
26A Cavity surface
26a Partition convex part
27 Fixed mold
27A Cavity surface
27c Second molten resin passage
27d First molten resin passage
34, 34a to 34h Sliding member
36a, 36b cavity

Claims (10)

固定金型と、該固定金型に対向して設置され該固定金型に対して型締め移動する可動金型とから構成され、該可動金型側における該固定金型との対向面に表皮材を取り付けた状態で該固定金型と該可動金型との型締めを行なって、該表皮材を表面の一部に貼り付けられた部分表皮材貼り成形品を成形する金型装置であって、
該可動金型に取り付けられた該表皮材の周縁部を該固定金型側へ折り曲げた状態で該表皮材の全周を囲い且つ該可動金型と該固定金型との間で出入自在な仕切り板と、該仕切り板を出入駆動するアクチュエータとが該可動金型にそなえられ、
該固定金型において該仕切り板と対向する位置には、該仕切り板の先端幅よりも広い幅を有し且つ型締め時に該仕切り板の先端が嵌合しうる溝が形成され、
溶融樹脂を該仕切り板内側のキャビティ内に注入する第１の溶融樹脂通路と、溶融樹脂を該仕切り板外側のキャビティ内に注入する第２の溶融樹脂通路とが該固定金型に形成され、
これらの第１の溶融樹脂通路および第２の溶融樹脂通路をそれぞれ開閉する第１および第２の開閉機構が該固定金型にそなえられているとともに、
該アクチュエータは、該固定金型と該可動金型との型締め時に該仕切り板の先端を該溝の底に当接させて該キャビティを区画する
ことを特徴とする、部分表皮材貼り成形用金型装置。A fixed mold, and a movable mold that is installed opposite to the fixed mold and moves with respect to the fixed mold, and has a skin on the surface facing the fixed mold on the movable mold side. In this mold apparatus, the fixed mold and the movable mold are clamped in a state where a material is attached, and a partial skin material-attached molded product in which the skin material is attached to a part of the surface is molded. And
Surrounding the entire circumference of the skin material in a state where the peripheral edge portion of the skin material attached to the movable mold is bent toward the fixed mold side, and is freely accessible between the movable mold and the fixed mold. A partition plate and an actuator for driving the partition plate in and out are provided in the movable mold,
In the fixed mold, at a position facing the partition plate, a groove having a width wider than the tip width of the partition plate and capable of fitting the tip of the partition plate at the time of mold clamping is formed .
A first molten resin passage for injecting molten resin into the cavity inside the partition plate and a second molten resin passage for injecting molten resin into the cavity outside the partition plate are formed in the fixed mold,
The first and second opening / closing mechanisms for opening and closing the first molten resin passage and the second molten resin passage, respectively, are provided in the fixed mold ,
The partial skin is characterized in that the actuator is configured to partition the cavity by bringing the tip of the partition plate into contact with the bottom of the groove when the stationary mold and the movable mold are clamped. Mold equipment for material pasting. 該仕切り板は、該表皮材の全周を囲うように分割された複数の板部を備えるとともに、The partition plate includes a plurality of plate portions divided so as to surround the entire circumference of the skin material,
それぞれの該複数の板部は、厚さ方向と幅方向との位置の融通が効くように該アクチュエータに保持されるEach of the plurality of plate portions is held by the actuator so that the positions in the thickness direction and the width direction can be interchanged.
ことを特徴とする、請求項１記載の部分表皮材貼り成形用金型装置。The mold apparatus for partial skin material pasting molding of Claim 1 characterized by the above-mentioned. 請求項１又は２記載の部分表皮材貼り成形用金型装置を用いた部分表皮材貼り成形方法であって、
型締め時に該アクチュエータにより該仕切り板を該固定金型側へ突出させ該仕切り板の先端を該溝の底に当接させることにより該表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り板内側のキャビティ内に溶融樹脂を注入して該表皮材貼り形状部分を成形してから、
該アクチュエータにより該仕切り板を所定量だけ該可動金型側へ引き込み、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り板外側のキャビティ内に溶融樹脂を注入し、該仕切り板外側の部分を該表皮材貼り形状部分と一体的に成形する
ことを特徴とする、部分表皮材貼り成形方法。 A partial skin material pasting method using the partial skin material pasting molding die device according to claim 1 or 2,
When the mold is clamped, the actuator projects the partition plate toward the fixed mold, and the tip of the partition plate is brought into contact with the bottom of the groove to partition the cavity of the skin material pasting shape portion to which the skin material is pasted. ,
After opening only the first molten resin passage by the first opening and closing mechanism and injecting molten resin into the cavity inside the partition plate to mold the skin material pasting shape part,
The actuator pulls the partition plate to the movable mold side by a predetermined amount,
Only the second molten resin passage is opened by the second opening / closing mechanism to inject molten resin into the cavity outside the partition plate, and the portion outside the partition plate is integrated with the skin material pasting shape portion. A method for pasting and forming a partial skin material, comprising molding . 請求項１又は２記載の部分表皮材貼り成形用金型装置を用いた部分表皮材貼り成形方法であって、
該可動金型を該固定金型に対して型全閉位置よりも寸開した状態で、該アクチュエータにより該仕切り板を該固定金型側へ突出させ該仕切り板の先端を該溝の底に当接させることにより該表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り板内側のキャビティ内に所定量の溶融樹脂を注入し、
該可動金型を該固定金型側へ移動させて型締めを行ない、該表皮材貼り部分のみを圧縮成形してから、
該アクチュエータにより該仕切り板を所定量だけ該可動金型側へ引き込み、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り板外側のキャビティ内に溶融樹脂を注入し、該仕切り板外側の部分を該表皮材貼り形状部分と一体的に成形する
ことを特徴とする、部分表皮材貼り成形方法。 A partial skin material pasting method using the partial skin material pasting molding die device according to claim 1 or 2,
With the movable mold opened with respect to the fixed mold from the fully closed position, the partition plate is projected toward the fixed mold by the actuator, and the tip of the partition plate is placed at the bottom of the groove. By partitioning the cavity of the skin material pasting portion to which the skin material is pasted,
Only the first molten resin passage is opened by the first opening / closing mechanism to inject a predetermined amount of molten resin into the cavity inside the partition plate,
The movable mold is moved to the fixed mold side to perform mold clamping, and after compression molding only the skin material pasting part,
The actuator pulls the partition plate to the movable mold side by a predetermined amount,
Only the second molten resin passage is opened by the second opening / closing mechanism to inject molten resin into the cavity outside the partition plate, and the portion outside the partition plate is integrated with the skin material pasting shape portion. A method for pasting and forming a partial skin material, comprising molding . 請求項１又は２記載の部分表皮材貼り成形用金型装置を用いた部分表 皮材貼り成形方法であって、
該可動金型を該固定金型に対して型全閉位置よりも寸開した状態で、該アクチュエータにより該仕切り板を該固定金型側へ突出させ該仕切り板の先端を該溝の底に当接させることにより該表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り板内側のキャビティ内に所定量の溶融樹脂を注入し、
該可動金型を該固定金型側へ移動させて型締めを行ない、該表皮材貼り部分のみを圧縮成形してから、
該アクチュエータにより該仕切り板を所定量だけ該可動金型側へ引き込むとともに、再度、該可動金型を該固定金型に対して寸開し、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り板外側のキャビティ内に所定量の溶融樹脂を注入し、
再度、該可動金型を該固定金型側へ移動させて型締めを行ない、該仕切り板外側の部分を該表皮材貼り形状部分と一体的に圧縮成形する
ことを特徴とする、部分表皮材貼り成形方法。 A partial table skin material laminated molding method using a paste according to claim 1 or 2 wherein the partial skin material molding die apparatus,
With the movable mold opened with respect to the fixed mold from the fully closed position, the partition plate is projected toward the fixed mold by the actuator, and the tip of the partition plate is placed at the bottom of the groove. By partitioning the cavity of the skin material pasting portion to which the skin material is pasted,
Only the first molten resin passage is opened by the first opening / closing mechanism to inject a predetermined amount of molten resin into the cavity inside the partition plate,
The movable mold is moved to the fixed mold side to perform mold clamping, and after compression molding only the skin material pasting part,
The actuator pulls the partition plate to the movable mold side by a predetermined amount, and again opens the movable mold with respect to the fixed mold,
Only the second molten resin passage is opened by the second opening / closing mechanism, and a predetermined amount of molten resin is injected into the cavity outside the partition plate,
The partial skin material is characterized in that the movable mold is moved again to the fixed mold side to perform clamping, and the outer part of the partition plate is compression-molded integrally with the skin material pasting shape part. Paste molding method . 固定金型と、該固定金型に対向して設置され該固定金型に対して型締め移動する可動金型とから構成され、該可動金型側における該固定金型との対向面に表皮材を取り付けた状態で該固定金型と該可動金型との型締めを行なって、該表皮材を表面の一部に貼り付けられた部分表皮材貼り成形品を成形する金型装置であって、
該可動金型に取り付けられた該表皮材の周縁部を該固定金型側へ折り曲げた状態で該表皮材の全周を囲う仕切り凸部が該可動金型に形成され、
該固定金型において該仕切り凸部と対向する位置には、該仕切り凸部の先端幅よりも広い幅を有し且つ型締め時に該仕切り凸部の先端と当接しうる摺動部材が、該可動金型の移動方向へ摺動可能にそなえられるとともに、該摺動部材を摺動駆動するアクチュエータが該固定金型側にそなえられ、
溶融樹脂を該仕切り凸部内側のキャビティ内に注入する第１の溶融樹脂通路と、溶融樹脂を該仕切り凸部外側のキャビティ内に注入する第２の溶融樹脂通路とが該固定金型に形成され、
これらの第１の溶融樹脂通路および第２の溶融樹脂通路をそれぞれ開閉する第１および第２の開閉機構がそなえられているとともに、
該アクチュエータは、該固定金型と該可動金型との型締め時に該摺動部材を該可動金型側へ摺動させ該仕切り凸部の先端と当接させて該表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画する
ことを特徴とする、部分表皮材貼り成形用金型装置。A fixed mold, and a movable mold that is installed opposite to the fixed mold and moves with respect to the fixed mold, and has a skin on the surface facing the fixed mold on the movable mold side. In this mold apparatus, the fixed mold and the movable mold are clamped in a state where a material is attached, and a partial skin material-attached molded product in which the skin material is attached to a part of the surface is molded. And
A partition convex portion surrounding the entire periphery of the skin material in a state where the peripheral edge portion of the skin material attached to the movable mold is bent toward the fixed mold side is formed on the movable mold,
A sliding member having a width wider than the tip width of the partition projection and capable of coming into contact with the tip of the partition projection when clamping is provided at a position facing the partition projection in the fixed mold. The movable mold is slidable in the moving direction, and an actuator for slidingly driving the sliding member is provided on the fixed mold side.
A first molten resin passage for injecting molten resin into the cavity inside the partition convex portion and a second molten resin passage for injecting molten resin into the cavity outside the partition convex portion are formed in the fixed mold. And
First and second opening / closing mechanisms for opening and closing these first molten resin passage and second molten resin passage, respectively, are provided ,
The actuator includes a skin for attaching the skin material by sliding the sliding member toward the movable die when the stationary die and the movable die are clamped, and contacting the tip of the partition convex portion. A mold apparatus for partial skin material pasting molding, characterized by partitioning a cavity of a material pasted shape portion . 該摺動部材は、該表皮材の周縁部に沿って分割された複数の摺動部を備えるとともに、The sliding member includes a plurality of sliding portions divided along the peripheral edge portion of the skin material,
それぞれの該複数の摺動部は、該アクチュエータに支持されるEach of the plurality of sliding portions is supported by the actuator.
ことを特徴とする、請求項６記載の部分表皮材貼り成形用金型装置。The mold apparatus for partial skin material pasting molding of Claim 6 characterized by the above-mentioned. 請求項６又は７記載の部分表皮材貼り成形用金型装置を用いた部分表皮材貼り成形方法であって、
型締め時に該アクチュエータにより該摺動部材を該可動金型側へ摺動させ該仕切り凸部の先端と当接させることにより該表皮材を貼り付ける表皮材貼り形状部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り凸部内側のキャビティ内に溶融樹脂を注入して該表皮材貼り形状部分を成形してから、
該アクチュエータにより該摺動部材を所定量だけ該固定金型側へ引き込み、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り凸部外側のキャビティ内に溶融樹脂を注入し、該仕切り凸部外側の部分を該表皮材貼り形状部分と一体的に成形することを特徴とする、部分表皮材貼り成形方法。 A partial skin material pasting method using the mold apparatus for partial skin material pasting molding according to claim 6 or 7,
By slid the sliding member to the movable mold side by the actuator during mold clamping and abut the tip of the partition convex portion to partition the cavity of the skin material pasting shape part to which the skin material is pasted,
After opening only the first molten resin passage by the first opening and closing mechanism and injecting molten resin into the cavity inside the partition convex portion to mold the skin material pasting shape portion,
With the actuator, the sliding member is pulled to the fixed mold side by a predetermined amount,
Only the second molten resin passage is opened by the second opening / closing mechanism to inject molten resin into the cavity outside the partition convex portion, and the portion outside the partition convex portion is integrated with the skin material pasting shape portion. The partial skin material pasting molding method characterized by carrying out shaping | molding automatically . 請求項６又は７記載の部分表皮材貼り成形用金型装置を用いた部分表 皮材貼り成形方法であって、
該可動金型を該固定金型に対して型全閉位置よりも寸開した状態で、該アクチュエータにより該摺動部材を該可動金型側へ摺動させ該仕切り凸部の先端と当接させることにより該表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り凸部内側のキャビティ内に所定量の溶融樹脂を注入し、
該可動金型を該固定金型側へ移動させて型締めを行ない、該表皮材貼り部分のみを圧縮成形してから、
該アクチュエータにより該摺動部材を所定量だけ該固定金型側へ引き込み、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り凸部外側のキャビティ内に溶融樹脂を注入し、該仕切り凸部外側の部分を該表皮材貼り形状部分と一体的に成形することを特徴とする、部分表皮材貼り成形方法。 A partial table skin material laminated molding method using the laminated portion cover material according to claim 6 or 7, wherein the molding die apparatus,
The sliding member is slid toward the movable mold by the actuator while the movable mold is opened with respect to the fixed mold from the fully closed position of the mold, and abuts against the tip of the partition projection. By partitioning the cavity of the skin material pasting part to which the skin material is pasted,
Only the first molten resin passage is opened by the first opening / closing mechanism, and a predetermined amount of molten resin is injected into the cavity inside the partition projection,
The movable mold is moved to the fixed mold side to perform mold clamping, and after compression molding only the skin material pasting part,
With the actuator, the sliding member is pulled to the fixed mold side by a predetermined amount,
Only the second molten resin passage is opened by the second opening / closing mechanism to inject molten resin into the cavity outside the partition convex portion, and the portion outside the partition convex portion is integrated with the skin material pasting shape portion. The partial skin material pasting molding method characterized by carrying out shaping | molding automatically . 請求項６又は７記載の部分表皮材貼り成形用金型装置を用いた部分表皮材貼り成形方法であって、
該可動金型を該固定金型に対して型全閉位置よりも寸開した状態で、該アクチュエータにより該摺動部材を該可動金型側へ摺動させ該仕切り凸部の先端と当接させることにより該表皮材を貼り付ける表皮材貼り部分のキャビティを区画し、
該第１の開閉機構により該第１の溶融樹脂通路のみを開放して該仕切り凸部内側のキャビティ内に所定量の溶融樹脂を注入し、
該可動金型を該固定金型側へ移動させて型締めを行ない、該表皮材貼り部分のみを圧縮成形してから、
該アクチュエータにより該摺動部材を所定量だけ該固定金型側へ引き込むとともに、再度、該可動金型を該固定金型に対して寸開し、
該第２の開閉機構により該第２の溶融樹脂通路のみを開放して該仕切り凸部外側のキャビティ内に所定量の溶融樹脂を注入し、
再度、該可動金型を該固定金型側へ移動させて型締めを行ない、該仕切り凸部外側の部分を該表皮材貼り形状部分と一体的に圧縮成形することを特徴とする、部分表皮材貼り成形方法。 A partial skin material pasting method using the mold apparatus for partial skin material pasting molding according to claim 6 or 7,
The sliding member is slid toward the movable mold by the actuator while the movable mold is opened with respect to the fixed mold from the fully closed position of the mold, and abuts against the tip of the partition projection. By partitioning the cavity of the skin material pasting part to which the skin material is pasted,
Only the first molten resin passage is opened by the first opening / closing mechanism, and a predetermined amount of molten resin is injected into the cavity inside the partition projection,
The movable mold is moved to the fixed mold side to perform mold clamping, and after compression molding only the skin material pasting part,
Pulling the sliding member by a predetermined amount to the fixed mold side by the actuator, and again opening the movable mold with respect to the fixed mold,
Only the second molten resin passage is opened by the second opening / closing mechanism, and a predetermined amount of molten resin is injected into the cavity outside the partition projection,
Again, the movable Dokin type performs clamping by moving to the fixed mold side, and wherein the compression molding portion of the outer the partition protrusions integrally with said surface skin material laminated shaped portion, portion epidermis Material pasting molding method .
JP34820096A 1996-12-26 1996-12-26 Mold device for partial skin material pasting and partial skin material pasting method using the same Expired - Fee Related JP3806778B2 (en)

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