JP4051396B1 - Molding method for textile decorative resin products - Google Patents

Molding method for textile decorative resin products Download PDF

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JP4051396B1
JP4051396B1 JP2007219560A JP2007219560A JP4051396B1 JP 4051396 B1 JP4051396 B1 JP 4051396B1 JP 2007219560 A JP2007219560 A JP 2007219560A JP 2007219560 A JP2007219560 A JP 2007219560A JP 4051396 B1 JP4051396 B1 JP 4051396B1
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篤 間宮
浩一 高橋
了太 岡村
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Tokyo R&D Co Ltd
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【課題】透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維で成る織物シートを積層し含有させ強度、意匠性、成型性に優れた織物加飾樹脂製品の成形方法を提供する。
【解決手段】熱可塑性樹脂で成る透明又は半透明の透過シートを予熱して金型内で加圧し予備成形し、炭素繊維及び／又は合成繊維の繊維束内に前記透明又は半透明の熱可塑性樹脂フィラメントを織り込んで成る織物シートを予熱して金型内で加圧し予備成形し、前記予備成形された透過シートと織物シートは、該透過シートを表面側に位置させて重ね合わせた状態で、熱加圧成形により両者を一体化し加飾予備成形品を成形し、前記加飾予備成形品を射出成型用金型内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑樹脂を射出成形して織物加飾樹脂製品を完成する。
【選択図】図１The present invention provides a method for molding a woven decorative resin product that is excellent in strength, design and moldability by laminating and containing a woven fabric sheet made of carbon fiber and / or synthetic fiber in a transparent or translucent thermoplastic resin.
A transparent or translucent transparent sheet made of a thermoplastic resin is preheated, pressed in a mold and preformed, and the transparent or translucent thermoplastic is placed in a fiber bundle of carbon fibers and / or synthetic fibers. Pre-heated and pressed in a mold a woven fabric sheet woven with resin filaments, the pre-formed permeable sheet and the woven fabric sheet, the permeable sheet is positioned on the surface side and overlapped, Both are integrated by thermo-press molding to form a decorative preform, the decorative preform is set in an injection mold, and the back side is injected with the same thermoplastic resin as the thermoplastic resin. Molding to complete the textile decorative resin product.
[Selection] Figure 1

Description

この発明は、自動車や自動二輪車等の車体構成部品（例えばカウルなど）として好適な織物加飾樹脂製品の成形方法の技術分野に属し、更に云うと、透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維で成る織物シートを積層し含有させ強度、意匠性、成型性に優れた織物加飾樹脂製品を成形する方法に関する。   The present invention belongs to the technical field of a method for forming a textile decorative resin product suitable as a vehicle body component (such as a cowl) for an automobile or a motorcycle, and more specifically, a transparent or translucent thermoplastic resin and a carbon fiber. The present invention also relates to a method for forming a woven decorative resin product having excellent strength, design and moldability by laminating and containing a woven fabric sheet made of synthetic fibers.

従来、軽量で高剛性の車体構成部品として、炭素繊維又はアラミド繊維を含む織物シートに透明又は半透明の熱可塑性樹脂を積層し含有させた織物加飾樹脂製品が意匠的趣味感に優れたものとして知られている。この種の織物加飾樹脂製品は、内部の繊維がその表面を覆う透明又は半透明の熱可塑性樹脂から透けて見えるため意匠性に優れている。   Conventionally, as a lightweight and highly rigid body component, a woven decorative resin product in which a transparent or translucent thermoplastic resin is laminated on a woven fabric sheet containing carbon fiber or aramid fiber has excellent design taste. Known as. This type of fabric-decorated resin product is excellent in design because the internal fibers can be seen through the transparent or translucent thermoplastic resin covering the surface.

こうした意匠性に優れた織物加飾樹脂製品を成形する方法として、下記の特許文献１には、図９に示すように、２枚の透明又は半透明の熱可塑性樹脂シート９０、９０と、１枚の織物シート９１を、必ず表面側に熱可塑性樹脂シート９０が位置するように重ね合わせた状態で一対の熱プレス成形機９２、９２にセットして熱加圧成形される。すると、熱可塑性樹脂シート９０、９０が軟化して織物シート９１の繊維の隙間に入り込み、３層が一体結合した加飾シート９が形成される。上記の工程により形成された加飾シート９を成形金型内に入れて、射出成形され、意匠性に優れた車体構成部品となる織物加飾樹脂製品を成形する方法が開示されている。   As a method for molding such a fabric decorative resin product having excellent design properties, the following Patent Document 1 includes two transparent or translucent thermoplastic resin sheets 90, 90 and 1 as shown in FIG. A sheet of woven fabric sheet 91 is set on a pair of hot press molding machines 92 and 92 in a state where the thermoplastic resin sheet 90 is always positioned on the surface side, and is subjected to heat and pressure molding. Then, the thermoplastic resin sheets 90 and 90 are softened and enter the gaps between the fibers of the woven fabric sheet 91 to form the decorative sheet 9 in which the three layers are integrally bonded. A method is disclosed in which a decorative sheet 9 formed by the above-described process is placed in a molding die and injection-molded to form a woven decorative resin product that becomes a vehicle body component having excellent design properties.

特開２００５−１６９８０３号公報JP 2005-169803 A

しかしながら、上記特許文献１の技術は、織物シートを熱可塑性樹脂に積層し含有させた加飾シートを熱加圧成形してから、車体構造の各部位に適した織物加飾樹脂製品に射出成形する方法であるため、同射出成形をする際に、加飾シート内の各繊維フィラメントが射出成型用金型になじむように伸縮してしまい、織物シートが本来有する意匠性に優れた繊維形状が崩れてしまうという問題点がある。繊維形状が崩れると、意匠性の低下のみならず強度が弱くなる等の構造上の欠陥を生じさせてしまう。   However, the technique of the above-mentioned patent document 1 is injection-molded into a woven decorative resin product suitable for each part of the vehicle body structure after hot-press molding a decorative sheet containing a woven sheet laminated to a thermoplastic resin. Therefore, when the same injection molding is performed, each fiber filament in the decorative sheet expands and contracts so that it fits into the mold for injection molding. There is a problem that it collapses. When the fiber shape collapses, structural defects such as a decrease in design as well as a decrease in strength are caused.

また、加飾シートを成形した後に各部位に適した樹脂製品へ射出成型するので、加飾シートに不要部分が発生し、非常に手間の掛かるトリミング作業を行う必要があるのみならず、トリミング量だけ歩留まりが低下した。更に、車体に取り付けるための取付具やリブ等を後付けする必要があるので多くの工程が嵩み作業効率が悪かった。   In addition, after molding the decorative sheet, it is injection-molded into a resin product suitable for each part, so there is an unnecessary part in the decorative sheet, and it is not only necessary to perform a very laborious trimming operation, but also the amount of trimming Only the yield decreased. Furthermore, since it is necessary to retrofit attachments, ribs, and the like for attachment to the vehicle body, many processes are bulky and work efficiency is poor.

本発明の目的は、織物シートがもつ強度と意匠性をそのまま保持し、トリミング作業や取付具の後付け作業等の工程を一切削除して、成形工程を著しく簡単化し、且つ短縮化し、作業効率を向上させ経済的な織物加飾樹脂製品を成形する方法を提供することにある。   The purpose of the present invention is to maintain the strength and design of the fabric sheet as it is, and to eliminate the trimming operation and the post-attachment process of the fixtures at all, greatly simplifying and shortening the molding process, and improving the work efficiency. An object of the present invention is to provide an improved and economical method for molding a textile decorative resin product.

上述した従来技術の課題を解決するための手段として、請求項１に記載した発明に係る織物加飾樹脂製品の成型方法は、
透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維から成る織物シートを積層し含有させた織物加飾樹脂製品を成形する方法であって、
前記熱可塑性樹脂で成る透明又は半透明の透過シートを予熱して金型内で加圧し予備成形する工程と、
炭素繊維及び／又は合成繊維の繊維束内に前記透明又は半透明の熱可塑性樹脂フィラメントを織り込んで成る織物シートを予熱して金型内で加圧し予備成形する工程と、
前記予備成形された透過シートと織物シートは、該透過シートを表面側に位置させて重ね合わせた状態で、熱加圧成形により両者を一体化し加飾予備成形品を成形する工程と、
前記加飾予備成形品を射出成型用金型内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑樹脂を射出成形して織物加飾樹脂製品を完成する工程とから成ることを特徴とする。 As a means for solving the above-described problems of the prior art, a method for molding a woven decorative resin product according to the invention described in claim 1 is:
A method for forming a woven decorative resin product in which a woven fabric sheet made of carbon fiber and / or synthetic fiber is laminated and contained in a transparent or translucent thermoplastic resin,
Preheating a transparent or translucent transparent sheet made of the thermoplastic resin, pressurizing it in a mold, and preforming;
Preheating a woven sheet formed by weaving the transparent or translucent thermoplastic filament in a fiber bundle of carbon fiber and / or synthetic fiber, pressurizing in a mold, and preforming;
The preliminarily formed permeation sheet and the woven sheet are in a state where the permeation sheet is positioned on the surface side and are superposed, and a process of integrating the two by hot pressing to form a decorative preform,
The decorative preform is set in an injection mold, and a thermoplastic resin of the same quality as the thermoplastic resin is injection-molded on the back side to complete a textile decorative resin product. And

請求項２に記載した発明に係る織物加飾樹脂製品の成型方法は、
透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維から成る織物シートを積層し含有させた織物加飾樹脂製品を成形する方法であって、
炭素繊維及び／又は合成繊維フィラメントと、同繊維のフィラメントの断面積より大きい断面積に形成した１本又は複数本の前記透明又は半透明の熱可塑性樹脂フィラメントとを、織り込んで成る加飾シートを加熱加圧して加飾予備シートを成形する工程と、
前記加飾予備シートを予熱して金型内で加圧し加飾予備成型品を成形する工程と、
前記加飾予備成形品を射出成型用金型内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑樹脂を射出成形して織物加飾樹脂製品を完成する工程とから成ることを特徴とする。 The molding method of the textile decorative resin product according to the invention described in claim 2 is:
A method for forming a woven decorative resin product in which a woven fabric sheet made of carbon fiber and / or synthetic fiber is laminated and contained in a transparent or translucent thermoplastic resin,
A decorative sheet comprising a carbon fiber and / or synthetic fiber filament and one or more transparent or translucent thermoplastic resin filaments formed in a cross-sectional area larger than the cross-sectional area of the filament of the same fiber. A step of heating and pressing to form a decorative preliminary sheet;
Preheating the decorative preliminary sheet and pressurizing it in a mold to form a decorative preform,
The decorative preform is set in an injection mold, and a thermoplastic resin of the same quality as the thermoplastic resin is injection-molded on the back side to complete a textile decorative resin product. And

請求項３記載の発明は、請求項１又は２に記載した発明に係る織物加飾樹脂製品の成型方法において、
合成繊維はアラミド繊維であることを特徴とする。 The invention described in claim 3 is a method for molding a textile decorative resin product according to the invention described in claim 1 or 2,
The synthetic fiber is an aramid fiber.

請求項１又は３に記載した発明に係る織物加飾樹脂製品の成形方法は、以下のような効果を奏する。
織物加飾樹脂製品は、熱可塑性樹脂で成る透明又は半透明の透過シートと、炭素繊維及び／又は合成繊維で成る織物シートとをそれぞれ予熱して金型内で加圧し予備成形し、予備成形された透過シートと織物シートとを熱加圧成形により両者を一体化した加飾予備成形品を成形した上で、前記加飾予備成形品を射出成型用金型にセットし、前記熱可塑性樹脂を射出成形して完成するので、前記予備成形された織物シート内の繊維形状が射出成形時に崩れることはなく、また、製品端末が樹脂で覆われることから美しい織物加飾樹脂製品を完成でき、織物シートが本来持つ強度と意匠性を確実に保持することができる。 The method for molding a woven decorative resin product according to the invention described in claim 1 or 3 has the following effects.
Textile decorative resin products are pre-molded by preheating a transparent or translucent transparent sheet made of thermoplastic resin and a fabric sheet made of carbon fiber and / or synthetic fiber, respectively, and pressurizing them in a mold. A molded preform is formed by integrating the permeated sheet and the woven sheet by hot-press molding, and then the decorated preform is set in an injection mold, and the thermoplastic resin Is completed by injection molding, so that the fiber shape in the preformed fabric sheet is not collapsed at the time of injection molding, and since the product terminal is covered with resin, a beautiful fabric decorated resin product can be completed, The inherent strength and design of the woven fabric sheet can be reliably maintained.

のみならず、部材一つ一つを車体構成部品に適切な形態に予備成形するので、無駄が無く歩留まりが向上し、面倒なトリミング作業等の工程が省け、作業効率を向上させることができる。
また、射出成形する際、織物加飾樹脂製品に必要な取り付けボスやリブ等を一体形成させるので、従来必須であった取付金具の後付け作業工程を一切省け作業効率を飛躍的に向上でき、経済的な織物加飾樹脂製品を成形できる。 In addition, since each member is preformed into a shape suitable for the vehicle body component, there is no waste, the yield is improved, troublesome processes such as trimming work are omitted, and work efficiency can be improved.
In addition, mounting bosses and ribs necessary for textile decorative resin products are integrally formed during injection molding, so the work of retrofitting mounting brackets, which was previously essential, can be omitted and work efficiency can be dramatically improved. A traditional textile decorative resin product can be molded.

請求項２に記載した発明は、炭素繊維及び／又は合成繊維フィラメントの断面積より大きい断面積の熱可塑性樹脂フィラメントを同繊維束内に繊維状に織り込んだ加飾シートを加熱加圧して加飾予備シートを形成し、同加飾予備シートを予熱した後加圧して繊維フィラメントが熱可塑性樹脂フィラメントに被覆された加飾予備成形品を成形するので、請求項１に記載した加飾予備成形品を成形する３工程を２工程に削減でき、作業効率とコストを更に低減することができる。   In the invention described in claim 2, the decorative sheet in which a thermoplastic resin filament having a cross-sectional area larger than the cross-sectional area of the carbon fiber and / or the synthetic fiber filament is woven into the fiber bundle is heated and pressed to decorate. Since the pre-sheet is formed, the pre-decorated pre-sheet is preheated and then pressed to form a pre-decorated preform in which the fiber filaments are coated with thermoplastic resin filaments. The three steps of molding can be reduced to two steps, and work efficiency and cost can be further reduced.

本発明は、透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維で成る織物シートを積層し含有させた織物加飾樹脂製品を成形する方法である。
前記熱可塑性樹脂で成る透明又は半透明の透過シート１を予熱して金型３内で加圧し予備成形する。
炭素繊維及び／又は合成繊維の繊維束４０内に前記透明又は半透明の熱可塑性樹脂フィラメント１０ａを織り込んで成る織物シート４を予熱して金型３内で加圧し予備成形する。
前記予備成形された透過シート１’と織物シート４’は、該透過シート１’を表面側に位置させて重ね合わせた状態で、熱加圧成形により両者を一体化し加飾予備成形品５を成形する。
前記加飾予備成形品５を射出成型用金型６内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑性樹脂を射出成形して織物加飾樹脂製品Ｘを完成する。 The present invention is a method of molding a woven decorative resin product in which a woven sheet made of carbon fiber and / or synthetic fiber is laminated and contained in a transparent or translucent thermoplastic resin.
The transparent or translucent transparent sheet 1 made of the thermoplastic resin is preheated and pressurized in the mold 3 to be preformed.
The fabric sheet 4 formed by weaving the transparent or translucent thermoplastic resin filaments 10a in the fiber bundle 40 of carbon fiber and / or synthetic fiber is preheated and pressurized in the mold 3 and preformed.
The preformed transmission sheet 1 ′ and the woven sheet 4 ′ are integrated with each other by thermo-pressing in a state where the transmission sheet 1 ′ is positioned on the surface side and overlapped, and a decorative preform 5 is obtained. Mold.
The decorative preform 5 is set in an injection mold 6 and a thermoplastic resin of the same quality as the thermoplastic resin is injection-molded on the back side to complete a textile decorative resin product X.

以下に、請求項１又は３に記載した本発明の織物加飾樹脂製品の成型方法を図１〜図６に示した実施例に基づいて説明する。
本実施例１の織物加飾樹脂製品は、自動車や自動二輪車等の車体構成製品、例えばカウルとして使用されるもので、表層が透明又は半透明の熱可塑性樹脂で、内部に炭素及び／又は合成繊維を繊維状に織り込んだ織物シートを積層含有させて強度及び意匠性を発揮させるものである。 Below, the shaping | molding method of the textile decoration resin product of this invention described in Claim 1 or 3 is demonstrated based on the Example shown in FIGS.
The textile decorative resin product of the first embodiment is used as a car body constituting product such as an automobile or a motorcycle, for example, a cowl. The surface layer is a transparent or translucent thermoplastic resin, and carbon and / or synthetic is contained inside. A fabric sheet in which fibers are woven into a fiber shape is laminated and exhibited to exhibit strength and design.

実施例１に示す上記織物加飾樹脂製品の成型方法は、端的に云うと４つの工程から成る。
先ず第１工程を図１Ａ〜Ｃに示した。即ち、図１Ａは、透明又は半透明の熱可塑性樹脂で成る透過シート１を必要な形状と厚さで用意し、その上下面を加熱ヒータ２、２で予熱し、可塑化する温度（例えば１２０℃〜１８０℃）に加圧成形する。前記熱可塑性樹脂としては例えば、ポリスチレン、ポリエチレン、ＥＶＡ樹脂、ポリカーボネート等である。
図１Ｂでは、前記のように予熱された透過シート１をあらかじめ予熱された一対の加圧成形金型３（以下単に金型３と云う。）内にセットし、加圧成形加工して所望の形態に予備成形する。熱可塑性樹脂材が冷却硬化した後に、同金型３を開放して取り出した成型品を図１Ｃに示す。こうして、予備成形した透過シート１’が完成する。該透過シート１’の成型板厚は、雄型金型３１と雌型金型３２とで構成された前記金型３の雄型金型３１のストロークと加圧圧力で管理される。 The method for molding the above-mentioned woven decorative resin product shown in Example 1 is basically composed of four steps.
First, the first step is shown in FIGS. That is, FIG. 1A shows that a transparent sheet 1 made of a transparent or translucent thermoplastic resin is prepared in a required shape and thickness, and the upper and lower surfaces thereof are preheated by the heaters 2 and 2 to be plasticized (for example, 120 (C ° -180 ° C.). Examples of the thermoplastic resin include polystyrene, polyethylene, EVA resin, and polycarbonate.
In FIG. 1B, the permeation sheet 1 preheated as described above is set in a pair of preheated pressure molding dies 3 (hereinafter simply referred to as molds 3), and subjected to pressure molding processing to obtain a desired one. Pre-form into form. FIG. 1C shows a molded product obtained by opening the mold 3 after the thermoplastic resin material has cooled and hardened. Thus, the preformed transmission sheet 1 ′ is completed. The molding plate thickness of the transmission sheet 1 ′ is managed by the stroke and pressure of the male mold 31 of the mold 3 constituted by the male mold 31 and the female mold 32.

次に、第２工程を図２Ａ〜Ｃに示す。第２工程では炭素繊維及び／又は合成繊維で成る織物シート４の予備成形を行う。前記合成繊維とは例えばアラミド繊維であり、ナイロン、ポリエステル、アクリルを含む。前記織物シート４は具体的には図３に示すように、炭素繊維及びアラミド繊維の繊維フィラメントの束４０が縦、横に織られた繊維状をなすもので意匠性に優れた形状とされている。前記繊維束４０は、図３Ｂ、Ｃの拡大図に示すように、前記した２種類の繊維フィラメント４０ａと略同径の熱可塑性樹脂フィラメント１０ａを互い違いに配置して織り込んだ構成としている。熱可塑性樹脂フィラメント１０ａは、上記透過シート１の熱可塑性樹脂と同質の樹脂材料である。
前記繊維束に織り込んだ２種類の繊維フィラメント４０ａは略同径としているが、熱可塑性樹脂フィラメント１０ａの方が大径でもよい。また２種類の繊維フィラメントは互い違いの配置としているがランダムな配置としてもよい。また、前記熱可塑性樹脂フィラメント１０ａ及び両繊維フィラメント４０ａの断面形状は円形に限らない。 Next, a 2nd process is shown to FIG. In the second step, the woven sheet 4 made of carbon fiber and / or synthetic fiber is preformed. The synthetic fiber is, for example, an aramid fiber, and includes nylon, polyester, and acrylic. Specifically, as shown in FIG. 3, the fabric sheet 4 is formed in a fiber shape in which a bundle 40 of carbon filaments and aramid fiber filaments are woven vertically and horizontally, and has an excellent design. Yes. As shown in the enlarged views of FIGS. 3B and 3C, the fiber bundle 40 has a configuration in which the two types of fiber filaments 40a and the thermoplastic resin filaments 10a having substantially the same diameter are alternately arranged and woven. The thermoplastic resin filament 10 a is a resin material having the same quality as the thermoplastic resin of the transmission sheet 1.
The two types of fiber filaments 40a woven into the fiber bundle have substantially the same diameter, but the thermoplastic resin filament 10a may have a larger diameter. The two types of fiber filaments are arranged alternately but may be arranged randomly. Moreover, the cross-sectional shape of the thermoplastic resin filament 10a and both fiber filaments 40a is not limited to a circle.

上記の構成の織物シート４は、図２Ａに示すように、やはりその上下面を加熱ヒータ２、２で予熱し、前記熱可塑性樹脂フィラメント１０ａが可塑化する温度（例えば１２０℃〜１８０℃）に加熱する。図２Ｂでは、前記織物シート４をあらかじめ加熱された金型３にセットし、加圧成形する。すると、上記熱可塑性樹脂フィラメント１０ａが可塑化して両隣の繊維フィラメント４０ａと融着することで、繊維の捻りや解れを防ぎ、織物シートの予備成形を容易に行える。また、繊維シートの厚さは、前記金型３の雄型金型３１のストロークで管理される。   As shown in FIG. 2A, the upper and lower surfaces of the woven fabric sheet 4 having the above-described configuration are also preheated by the heaters 2 and 2 to a temperature at which the thermoplastic resin filament 10a is plasticized (for example, 120 ° C. to 180 ° C.). Heat. In FIG. 2B, the fabric sheet 4 is set in a preheated mold 3 and press-molded. Then, the thermoplastic resin filament 10a is plasticized and fused with the adjacent fiber filaments 40a, so that twisting and unraveling of the fibers can be prevented and the woven sheet can be easily preformed. Further, the thickness of the fiber sheet is managed by the stroke of the male mold 31 of the mold 3.

前記熱可塑性樹脂フィラメント１０ａの熱硬化時間が経過した後、金型３を開放して取り出した成型品を図２Ｃに示す。これは、図１で形成した予備成形品１’と略同形同大の予備成形品としての織物シート４’が完成する。   FIG. 2C shows a molded product obtained by opening the mold 3 after the thermosetting time of the thermoplastic resin filament 10a has elapsed. This completes a woven sheet 4 'as a preform having the same shape and size as the preform 1' formed in FIG.

次に、第３工程を図４Ａ〜Ｃに基づいて説明する。この第３工程は、端的に云うと、上記予備成形した透過シート１’と織物シート４’を一体的に結合する工程である。
即ち、図４Ａでは、上記のように予備成形された透過シート１’を表面側へ、そして、やはり予備成形された織物シート４’を内側となるように重ね合わせた状態で上記金型３内へセットする。そして、図４Ｂで熱加圧成形により両者を一体化する。この際、表層に位置する透過シート１’の熱可塑性樹脂と、内側の織物シート４’の熱可塑性樹脂フィラメント１０ａとが各々可塑化して融合し互いに融着するので、繊維フィラメント４０ａ…の繊維形状が崩れることなく両者を一体化できる。熱可塑性樹脂が冷却硬化した後に取り出すと、図４Ｃに示す加飾予備成形品５が完成する。 Next, a 3rd process is demonstrated based on FIG. In short, the third step is a step of integrally joining the preformed transmission sheet 1 ′ and the woven sheet 4 ′.
That is, in FIG. 4A, in the mold 3 in a state where the preliminarily formed transmission sheet 1 ′ is superposed on the surface side and the preliminarily formed woven sheet 4 ′ is superimposed on the inside. Set to. And in FIG. 4B, both are integrated by thermo-press molding. At this time, the thermoplastic resin of the permeable sheet 1 ′ located on the surface layer and the thermoplastic resin filaments 10 a of the inner woven sheet 4 ′ are each plasticized and fused and fused together, so that the fiber shape of the fiber filaments 40 a. Both can be integrated without breaking. When the thermoplastic resin is taken out after being cooled and cured, the decorative preform 5 shown in FIG. 4C is completed.

第４工程を図５Ａ〜Ｃに基づいて説明する。この工程により織物加飾樹脂製品Ｘが完成する。即ち、図５Ａでは、例えばインラインスクリュー式の射出形成機の射出成型用金型６（雄型６１、雌型６２）内に前記加飾予備成形品５をセットする。前記金型６の雄型６１には熱可塑性樹脂を射出するノズル６１ａが設けられているほか、織物加飾樹脂製品Ｘに必要な取り付けボス６２ｂやリブを一体形成可能な型面が形成されている。   A 4th process is demonstrated based on FIG. This process completes the textile decorative resin product X. That is, in FIG. 5A, for example, the decorative preform 5 is set in an injection mold 6 (male mold 61 and female mold 62) of an inline screw type injection molding machine. The male mold 61 of the mold 6 is provided with a nozzle 61a for injecting a thermoplastic resin, and a mold surface capable of integrally forming mounting bosses 62b and ribs necessary for the textile decorative resin product X is formed. Yes.

図５Ｂに示すように、前記金型６を閉じて加圧し、図５Ｃに示すように、前記ノズル６１ａから熱可塑性樹脂７を同金型６内へ高圧で射出する。こうして射出される熱可塑性樹脂も、上述した透明又は半透明の熱可塑性樹脂と同質の材料であることが好ましい。
前記冷却硬化時間が経過すると、金型６を開放して形成品を取り出し、ノズル部分６１ａ（点線）をカットすると、図６に示す織物加飾樹脂製品Ｘが完成する。 As shown in FIG. 5B, the mold 6 is closed and pressurized, and as shown in FIG. 5C, the thermoplastic resin 7 is injected into the mold 6 from the nozzle 61a at a high pressure. It is preferable that the thermoplastic resin thus injected is the same material as the above-described transparent or translucent thermoplastic resin.
When the cooling and curing time elapses, the mold 6 is opened, the formed product is taken out, and the nozzle portion 61a (dotted line) is cut to complete the woven decorative resin product X shown in FIG.

本発明は上記の成形方法としたので、織物シート４内の繊維形状が成形時に崩れることがなく、高品質で高い意匠性の完成品を完成でき、織物シート４がもつ強度と意匠性を確実に保持することができる。のみならず、シート材を一つ一つ予備成形して成形するので、図９に示した従来の織物シート９１を含有した加飾シート９を成形する際に生じる材料の無駄が無く歩留まりが向上して、面倒なトリミング作業等の工程が省かれ作業効率を向上させることができるのである。   Since the present invention is the above-described molding method, the fiber shape in the woven sheet 4 is not broken during molding, and a high-quality and high-design finished product can be completed, and the strength and design characteristics of the woven sheet 4 are ensured. Can be held in. In addition, since the sheet material is preformed and molded one by one, the yield is improved without waste of material generated when the decorative sheet 9 containing the conventional fabric sheet 91 shown in FIG. 9 is molded. As a result, troublesome processes such as trimming work can be omitted and work efficiency can be improved.

次に、請求項２又は３に記載した発明に係る織物加飾樹脂製品の成形方法を説明する。
本実施例２は上述した実施例１と略同様の技術的思想に基づいており、以下に、その相違点を中心に説明する。
端的に云うと、実施例１で説明した４つの工程のうち、第１工程〜第３工程を２つの工程で実施することを特徴としている。 Next, a method for forming a woven decorative resin product according to the invention described in claim 2 or 3 will be described.
The second embodiment is based on substantially the same technical idea as the first embodiment described above, and the difference will be mainly described below.
In short, among the four steps described in the first embodiment, the first to third steps are performed in two steps.

そのため、予備成形するシート材として、図７Ａ、Ｂに示すように炭素繊維及び／又は合成繊維のフィラメント４０ａ’と、同フィラメント４０ａ’の断面積よりも大きい断面積に形成した１本又は複数本の前記透明又は半透明の熱可塑性樹脂フィラメント１０ａ’とを同繊維束内に互い違いの配置して織り込んだ加飾シート８を使用する。   Therefore, as a sheet material to be preformed, as shown in FIGS. 7A and 7B, one or a plurality of carbon fibers and / or synthetic fiber filaments 40a ′ and a cross-sectional area larger than the cross-sectional area of the filament 40a ′ are formed. The decorative sheet 8 is used in which the transparent or translucent thermoplastic resin filaments 10a ′ are alternately arranged and woven in the same fiber bundle.

この加飾シート８を金型３内にセットし、加熱加圧して加飾予備シートを成形する。すると、図８Ａに示すように径の大きい熱可塑性樹脂フィラメント１０ａ’が径の小さい繊維フィラメント４０ａ’の上部を被覆し、冷却硬化すると、図８Ｂに示すような表層には透明又は半透明の熱可塑性樹脂が、内部には織物シートが内在された加飾予備シートが形成される。
しかる後に、前記加飾予備シートの上下面を上記加熱ヒータ２、２で予熱し、金型３内にセットして、加圧し、所望の形状に成型した加飾予備成形品８’が完成する。
上記の方法により完成した加飾予備成形品８’は、図５、図６で説明した同様の各工程が実施されて織物加飾樹脂製品Ｘが完成する。
したがって、実施例２は、実施例１に比して作業効率とコストを更に低減することができる。 This decorative sheet 8 is set in the mold 3 and heated and pressed to form a decorative preliminary sheet. Then, as shown in FIG. 8A, when the thermoplastic resin filament 10a ′ having a large diameter covers the upper portion of the fiber filament 40a ′ having a small diameter and is cooled and hardened, the surface layer as shown in FIG. 8B has a transparent or translucent heat. A decorative preliminary sheet in which a plastic sheet and a woven fabric sheet are contained is formed.
Thereafter, the upper and lower surfaces of the decorative preform sheet are preheated by the heaters 2 and 2, set in the mold 3, and pressurized to complete a decorative preform 8 ′ molded into a desired shape. .
The decorative preform 8 ′ completed by the above method is subjected to the same steps described in FIGS. 5 and 6 to complete the woven decorative resin product X.
Accordingly, the working efficiency and cost of the second embodiment can be further reduced as compared with the first embodiment.

以上に実施形態を図面に基づいて説明したが、本発明は、図示例の実施形態の限りではなく、その技術的思想を逸脱しない範囲において、当業者が通常に行う設計変更、応用のバリエーションの範囲を含むことを念のために付言する。   The embodiments have been described with reference to the drawings. However, the present invention is not limited to the illustrated embodiments, and design modifications and application variations that are usually made by those skilled in the art are within the scope of the technical idea of the invention. I will add a note to include the range.

Ａ〜Ｃは、透過シートを予備成形する工程を示した概略図である。AC is the schematic which showed the process of preforming a permeation | transmission sheet | seat. Ａ〜Ｃは織物シートを予備成形する工程を示した概略図である。AC is the schematic which showed the process of preforming a textile sheet. Ａは織物シートの形状の概要を示した図である。ＢはＡの拡大図を示した図である。A is the figure which showed the outline | summary of the shape of the fabric sheet. B is an enlarged view of A. FIG. Ａ〜Ｃは透過シートと織物シートを一体化して加飾予備成形品を形成する工程を示した概略図である。AC is the schematic which showed the process of integrating a permeable sheet and a textile sheet and forming a decorating preform. Ａ〜Ｃは加飾予備成形品を射出成形する工程を示した概略図である。AC is the schematic which showed the process of injection-molding a decorative preform. ノズル部分を切断して織物加飾樹脂製品を完成した図である。It is the figure which cut the nozzle part and completed the textile decoration resin product. Ａは加飾シートの概要を示した図である。ＢはＡの拡大図を示した図である。A is the figure which showed the outline | summary of the decorating sheet. B is an enlarged view of A. FIG. Ａ、Ｂは加飾シートを加圧して加飾予備成形品が形成される状態を示した概略図である。A and B are schematic views showing a state in which a decorative preform is formed by pressurizing a decorative sheet. 従来技術を示した図である。It is the figure which showed the prior art.

符号の説明Explanation of symbols

１ 透過シート
１０ａ 熱可塑樹脂フィラメント
２ 加熱ヒーター
３ 金型
４ 織物シート
４０ 繊維束
４０ａ 繊維フィラメント
５ 加飾予備成型品
６ 射出成形用金型
８ 加飾シート
Ｘ 織物加飾樹脂製品 DESCRIPTION OF SYMBOLS 1 Permeation sheet 10a Thermoplastic resin filament 2 Heater 3 Mold 4 Textile sheet 40 Fiber bundle 40a Fiber filament 5 Decorating preform 6 Mold for injection molding 8 Decorating sheet X Textile decorative resin product

Claims (3)

透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維から成る織物シートを積層し含有させた織物加飾樹脂製品を成形する方法であって、
前記熱可塑性樹脂で成る透明又は半透明の透過シートを予熱して金型内で加圧し予備成形する工程と、
炭素繊維及び／又は合成繊維の繊維束内に前記透明又は半透明の熱可塑性樹脂フィラメントを織り込んで成る織物シートを予熱して金型内で加圧し予備成形する工程と、
前記予備成形された透過シートと織物シートは、該透過シートを表面側に位置させて重ね合わせた状態で、熱加圧成形により両者を一体化し加飾予備成形品を成形する工程と、
前記加飾予備成形品を射出成型用金型内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑樹脂を射出成形して織物加飾樹脂製品を完成する工程とから成ることを特徴とする、織物加飾樹脂製品の成形方法。 A method for forming a woven decorative resin product in which a woven fabric sheet made of carbon fiber and / or synthetic fiber is laminated and contained in a transparent or translucent thermoplastic resin,
Preheating a transparent or translucent transparent sheet made of the thermoplastic resin, pressurizing it in a mold, and preforming;
Preheating a woven sheet formed by weaving the transparent or translucent thermoplastic filament in a fiber bundle of carbon fiber and / or synthetic fiber, pressurizing in a mold, and preforming;
The preliminarily formed permeation sheet and the woven sheet are in a state where the permeation sheet is positioned on the surface side and are superposed, and a process of integrating the two by hot pressing to form a decorative preform,
The decorative preform is set in an injection mold, and a thermoplastic resin of the same quality as the thermoplastic resin is injection-molded on the back side to complete a textile decorative resin product. And a method for forming a textile decorative resin product. 透明又は半透明の熱可塑性樹脂に炭素繊維及び／又は合成繊維から成る織物シートを積層し含有させた織物加飾樹脂製品を成形する方法であって、
炭素繊維及び／又は合成繊維フィラメントと、同繊維のフィラメントの断面積より大きい断面積に形成した１本又は複数本の前記透明又は半透明の熱可塑性樹脂フィラメントとを、織り込んで成る加飾シートを加熱加圧して加飾予備シートを成形する工程と、
前記加飾予備シートを予熱して金型内で加圧し加飾予備成型品を成形する工程と、
前記加飾予備成形品を射出成型用金型内にセットし、裏面側に前記熱可塑性樹脂と同質の熱可塑樹脂を射出成形して織物加飾樹脂製品を完成する工程とから成ることを特徴とする、織物加飾樹脂製品の成形方法。 A method for forming a woven decorative resin product in which a woven fabric sheet made of carbon fiber and / or synthetic fiber is laminated and contained in a transparent or translucent thermoplastic resin,
A decorative sheet comprising a carbon fiber and / or synthetic fiber filament and one or more transparent or translucent thermoplastic resin filaments formed in a cross-sectional area larger than the cross-sectional area of the filament of the same fiber. A step of heating and pressing to form a decorative preliminary sheet;
Preheating the decorative preliminary sheet and pressurizing it in a mold to form a decorative preform,
The decorative preform is set in an injection mold, and a thermoplastic resin of the same quality as the thermoplastic resin is injection-molded on the back side to complete a textile decorative resin product. And a method for forming a textile decorative resin product. 合成繊維はアラミド繊維であることを特徴とする、請求項１又は２に記載した織物加飾樹脂製品の成形方法。   The method for forming a woven decorative resin product according to claim 1 or 2, wherein the synthetic fiber is an aramid fiber.
JP2007219560A 2007-08-27 2007-08-27 Molding method for textile decorative resin products Expired - Fee Related JP4051396B1 (en)

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