JPH01178412A - Manufacture of fiber-reinforced resin molding material and device therefor - Google Patents
Manufacture of fiber-reinforced resin molding material and device thereforInfo
- Publication number
- JPH01178412A JPH01178412A JP111588A JP111588A JPH01178412A JP H01178412 A JPH01178412 A JP H01178412A JP 111588 A JP111588 A JP 111588A JP 111588 A JP111588 A JP 111588A JP H01178412 A JPH01178412 A JP H01178412A
- Authority
- JP
- Japan
- Prior art keywords
- molten resin
- fiber bundle
- fiber
- resin
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 108
- 239000011347 resin Substances 0.000 title claims abstract description 108
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000012778 molding material Substances 0.000 title claims description 21
- 239000000835 fiber Substances 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 abstract description 8
- 238000005470 impregnation Methods 0.000 abstract description 8
- 230000010355 oscillation Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 229920001187 thermosetting polymer Polymers 0.000 description 7
- 229920005992 thermoplastic resin Polymers 0.000 description 6
- -1 linen Polymers 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000035936 sexual power Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、繊維強化樹脂成形材料の製造方法及びその装
置に係り、さらに詳しくは主として一方向強化熱可塑性
樹脂成形材料又は二方向強化熱可塑性樹脂成形材料の連
続成形方法と、その装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for producing fiber-reinforced resin molding materials, and more specifically, mainly relates to a method for manufacturing a fiber-reinforced resin molding material or a bi-directionally reinforced thermoplastic resin molding material. This invention relates to a continuous molding method for resin molding materials and an apparatus therefor.
（従来の技術）
近来、例えば自動車用外板材料として、軽量化、省エネ
ルギー、コストダウンなどの点から、従来の鋼板に代わ
って繊維強化樹脂成形材料が使用されつつある。従来の
自動車用外板材料は熱硬化性樹脂を繊維強化材に含浸さ
せて作成される繊維強化熱硬化性樹脂成形材料が一般的
であったが、繊維強化熱硬化性樹脂成形材料はその製造
に時間がかかり、大量生産時のコストダウンを図ること
が難しい、などの理由から最近では、それらの欠点を補
う材料として熱可塑性樹脂を繊維強化材に含浸させて得
られる繊維強化熱硬化性樹脂成形材料が注目されている
。(Prior Art) In recent years, fiber-reinforced resin molding materials have been used as outer panel materials for automobiles, for example, in place of conventional steel plates from the viewpoint of weight reduction, energy saving, and cost reduction. Conventional automotive exterior skin materials have generally been fiber-reinforced thermosetting resin molding materials created by impregnating fiber reinforced materials with thermosetting resins; Recently, fiber-reinforced thermosetting resins, which are obtained by impregnating fiber-reinforced materials with thermoplastic resins, have been used as materials to compensate for these drawbacks, such as the fact that it takes time to process and it is difficult to reduce costs during mass production. Molding materials are attracting attention.
ところで、従来、上記繊維強化樹脂成形材料（プリプレ
グ）を製造するにあたっては、例えば第４図に示すプル
トルージョンタイプによる製造装置を用いた製造方法が
提案されている。By the way, conventionally, in manufacturing the fiber-reinforced resin molding material (prepreg), a manufacturing method using a pultrusion type manufacturing apparatus shown in FIG. 4, for example, has been proposed.
図中１は押出機本体であり、押出機本体１より加熱溶融
樹脂を押し出すバレル部３が側方へ延出されている。該
バレル部３の先端部にはダイ２０が取付けられ、またバ
レル部３の途中にはホッパ２が設けられている。ダイ２
０の下方位置には回転駆動する一対の冷却ロール６が配
設されている。In the figure, 1 is an extruder main body, and a barrel portion 3 for extruding heated molten resin from the extruder main body 1 extends laterally. A die 20 is attached to the tip of the barrel portion 3, and a hopper 2 is provided in the middle of the barrel portion 3. die 2
A pair of rotationally driven cooling rolls 6 are disposed at a position below 0.
第５図に示すように、前記ダイ２０のヘッドブロック５
内には、繊維束４が上方から下方へ向けて通過する繊維
通過路１４が上下方向に長く貫通して設けられ、またヘ
ッドブロック５の側部にはバレル部３内に形成された樹
脂流路１０が導入され、該樹脂流路１０ど前記繊維通過
路１４とがヘッドブロック５内で連通して、その接合部
分にマニホールド７が形成されている。マニホールド７
の土壁部にはノズル部８が形成され、マニホールド７の
下端部にはダイ出口９ａを有したダイリップ９が設けら
れている。そして、繊維束４がダイ２０の上方から繊維
通過路１４を通って冷却ロール６で引き取られる際に、
マニホールド７内で溶融樹脂ａが繊維束４の周囲に付着
あるいは含浸し、この繊維束４がダイ出−口９ａより下
方へ引き取られ、ここで冷却されて繊維強化樹脂成形材
料が製造されるようになっている。As shown in FIG. 5, the head block 5 of the die 20
A fiber passageway 14 through which the fiber bundle 4 passes from above to below is provided inside the head block 5 so as to pass through the fiber passageway 14 in a long vertical direction. A passage 10 is introduced, and the resin flow passage 10 and the fiber passage passage 14 communicate with each other within the head block 5, and a manifold 7 is formed at the joint portion thereof. Manifold 7
A nozzle portion 8 is formed in the earthen wall portion of the manifold 7, and a die lip 9 having a die outlet 9a is provided at the lower end of the manifold 7. Then, when the fiber bundle 4 passes through the fiber passageway 14 from above the die 20 and is taken up by the cooling roll 6,
The molten resin a adheres to or impregnates around the fiber bundle 4 in the manifold 7, and the fiber bundle 4 is drawn downward from the die outlet 9a, where it is cooled to produce a fiber-reinforced resin molding material. It has become.
ところが、一般に繊維束４と溶融樹脂ａとの濡れ性は悪
いために、上記構成のプルトルージョンタイプの製造方
法では、繊維束４の周囲に溶融樹脂ａが付着するだけで
あり、溶融樹脂ａを繊維束４へ充分含浸させることがで
きない。繊維束４に対する樹脂の含浸性を上げる為に、
樹脂を溶液又はエマルジョン状態として繊維束に含浸さ
せる予備含浸方式が従来から提案されているが、この方
法では溶剤等が揮散するため環境衛生上の問題を招来し
、またエネルギーロスの問題等があって好ましくない。However, since the wettability between the fiber bundle 4 and the molten resin a is generally poor, in the pultrusion type manufacturing method having the above configuration, the molten resin a only adheres to the periphery of the fiber bundle 4, and the molten resin a is The fiber bundle 4 cannot be sufficiently impregnated. In order to increase the impregnation of the resin into the fiber bundle 4,
A pre-impregnation method has been proposed in which the fiber bundle is impregnated with a resin in the form of a solution or emulsion, but this method causes environmental hygiene problems because the solvent etc. evaporate, and there are also problems such as energy loss. I don't like it.
また、例えば特公昭４８−８８５８号公報、特公昭４７
−３６４６７号公報、特開昭５２−７８２７３号公報に
は、繊維束に樹脂粉末を予め付着溶融させて、樹脂との
濡れ性を改良した後、このものに溶融樹脂を含浸させる
方法も提案されている。Also, for example, Japanese Patent Publication No. 48-8858, Japanese Patent Publication No. 47
36467 and Japanese Patent Application Laid-Open No. 52-78273 also propose a method in which resin powder is adhered and melted to a fiber bundle in advance to improve wettability with the resin, and then the fiber bundle is impregnated with molten resin. ing.
（発明が解決しようとする課題）
ところが、上記樹脂粉末を予備付着させる方法によれば
、繊維束に付着させる樹脂を粉末化する工程や、樹脂含
浸槽等が必要となるため繊維強化樹脂成形材料の製造工
程が複雑化し、製造コストの面で改良の余地があった。(Problem to be Solved by the Invention) However, according to the above-mentioned method of pre-adhering resin powder, a process of powderizing the resin to be applied to the fiber bundle, a resin impregnation tank, etc. are required. The manufacturing process has become complicated, and there is room for improvement in terms of manufacturing costs.
−また、熱可塑性樹脂を繊維束に含浸させる場合には、
熱可塑性樹脂は溶融時の粘性が熱硬化性樹脂に比べて非
常に高いため、繊維束の各単糸間への含浸性が難しいも
のである。樹脂の溶融温度を上げて樹脂の流動性を上げ
ることにより、樹脂の含浸性を上げることも考えら、れ
るが、樹脂の溶融温度を高くし過ぎると、樹脂がその溶
融時に熱劣化したり、マトリックス樹脂自身の強度低下
を来たし、ひいては成形品の性能をも損ねるという欠点
がある。さらに、溶融樹脂の供給圧力を上げることによ
り、繊維束に対する溶融樹脂の含浸性を高めることも考
えられるが、ダイ内に設けられたマニホールド内へは繊
維束が連続的に導入されているため、マニホールドは外
部に開口させる必要があり、従って、樹脂の供給圧力を
上げる上記方式を採用することはできない。-Also, when impregnating the fiber bundle with thermoplastic resin,
Since the viscosity of thermoplastic resins when melted is much higher than that of thermosetting resins, it is difficult to impregnate the fiber bundle between the individual filaments. It is possible to increase the impregnability of the resin by increasing the melting temperature of the resin and increasing the fluidity of the resin, but if the melting temperature of the resin is too high, the resin may deteriorate due to heat during melting. This has the disadvantage that the strength of the matrix resin itself is reduced, and the performance of the molded product is also impaired. Furthermore, it is possible to improve the impregnation of the molten resin into the fiber bundle by increasing the supply pressure of the molten resin, but since the fiber bundle is continuously introduced into the manifold provided in the die, The manifold needs to be opened to the outside, so the above method of increasing the resin supply pressure cannot be adopted.
本発明は上記欠点を解決するものであり、その目的は、
樹脂の含浸性を向上することができる上に、製造工程が
簡略化できると共に、製造コストを低減することができ
る繊維強化樹脂成形材料の製造方法及びその装置を提供
することにある。The present invention solves the above-mentioned drawbacks, and its purpose is to:
It is an object of the present invention to provide a method for manufacturing a fiber-reinforced resin molding material and an apparatus therefor, which can improve resin impregnation, simplify the manufacturing process, and reduce manufacturing costs.
（課題を解決するための手段）
本発明の繊維強化樹脂成形材料の製造方法は、溶融樹脂
中に繊維束を連続的に供給し、該繊維束に溶融樹脂を含
浸させた後、溶融樹脂が含浸された繊維束を引き出して
溶融樹脂を硬化させる繊維強化樹脂成形材料の製造方法
であって、前記！＠ｉ￥ａ束に溶融樹脂を含浸させる際
に、溶融樹脂を振動させるすることを特徴としており、
そのことにより上記目的が達成される。(Means for Solving the Problems) The method for producing a fiber-reinforced resin molding material of the present invention involves continuously supplying a fiber bundle into a molten resin, impregnating the fiber bundle with the molten resin, and then discharging the molten resin. A method for producing a fiber-reinforced resin molding material, which comprises pulling out an impregnated fiber bundle and curing a molten resin, the method as described above! @i￥aIt is characterized by vibrating the molten resin when impregnating the bundle with the molten resin.
This achieves the above objective.
本発明の繊維強化樹脂成形材料の製造装置は、連続的に
供給される繊維束が通過する繊維通過路と、該繊維通過
路の一部に設けられ溶融樹脂が供給されるマニホールド
と、溶融樹脂に振動を与える振動発生装置とを有するダ
イと、該溶融樹脂が含浸された繊維束を前記ダイから引
き取る引き取り手段と、を具備することを特徴としてお
り、そのことにより上記目的が達成される。The apparatus for producing a fiber-reinforced resin molding material of the present invention comprises: a fiber passageway through which a continuously supplied fiber bundle passes; a manifold provided in a part of the fiber passageway to which molten resin is supplied; The present invention is characterized by comprising a die having a vibration generating device that applies vibration to the molten resin, and a taking-off means for taking off the fiber bundle impregnated with the molten resin from the die, thereby achieving the above object.
（実施例） 以下に本発明の実施例を詳細に説明する。(Example) Examples of the present invention will be described in detail below.
裏胤皿上
本発明に係る繊維強化樹脂成形材料の製造装置の全体構
成は、第４図で示した一般的なプルトルージョンタイプ
と同様に構成されている。該製造装置は、加熱溶融した
樹脂を押し出すバレル部３を備えた押出機本体ｌと、該
バレル部３の先端部に設けられたダイ２０と、ダイ２０
の下方位置に回転駆動自在に配設された引き取り手段と
しての一対の冷却ロール６とを具備して構成されている
。On the back plate The overall structure of the apparatus for manufacturing fiber-reinforced resin molding material according to the present invention is similar to the general pultrusion type shown in FIG. The manufacturing apparatus includes an extruder main body l equipped with a barrel part 3 for extruding heated and melted resin, a die 20 provided at the tip of the barrel part 3, and a die 20.
The cooling roll 6 is provided with a pair of cooling rolls 6 as a take-up means which are rotatably disposed below the cooling roll 6.
第１図に示すように、ダイ２０のヘッドブロック５には
、帯状の繊維束４が通過する繊維通過路１４が上下方向
に長く貫通して設けられている。ダイヘッドブロック５
の側部には前記繊維通過路１４と連通ずる樹脂流路１０
が設けられ、繊維通過路１４と樹脂流路１０との接合部
分にマニホールド７が形成されている。該マニホールド
゛７の土壁部にはノズル部８が形成され、マニホールド
７の下端部にはダイ出口９ａを有したダイリップ９が設
けられている。As shown in FIG. 1, the head block 5 of the die 20 is provided with a fiber passageway 14 extending vertically and through which the band-shaped fiber bundle 4 passes. die head block 5
A resin flow path 10 communicating with the fiber passage path 14 is provided on the side of the
A manifold 7 is formed at the junction between the fiber passageway 14 and the resin flowpath 10. A nozzle portion 8 is formed in the clay wall of the manifold 7, and a die lip 9 having a die outlet 9a is provided at the lower end of the manifold 7.
前記マニホールド７内において、繊維束４の通過位置か
らやや外れた位置に、振動発生装置の一例としての超音
波振動子１１が複数個配設されている。超音波振動子１
１．１１・・・は繊維束４の表裏面側にそれぞれ複数個
配設され、且つ繊維束４の表裏面側に配設された各超音
波振動子１１は互いに対向しない位置に配設されている
。各超音波振動子１１．１１・・・は繊維束１の側面に
接触しないようにマニホールド７内に配設されている。In the manifold 7, a plurality of ultrasonic transducers 11, which are an example of a vibration generator, are arranged at positions slightly away from the passage position of the fiber bundle 4. Ultrasonic transducer 1
1.11... are arranged in plural on the front and back sides of the fiber bundle 4, and the respective ultrasonic transducers 11 arranged on the front and back sides of the fiber bundle 4 are arranged at positions not facing each other. ing. Each of the ultrasonic transducers 11, 11, . . . is arranged within the manifold 7 so as not to contact the side surface of the fiber bundle 1.
本発明で使用し得る繊維束は、ＦＲＰ （繊維強化プラ
スチック）又はＦＲＴＰ （繊維強化熱可塑性プラスチ
ック）に従来から使用されているものを総てを使用する
ことができ、例えばガラス繊維、カーボン繊維、ボロン
繊維、ウィスカ等の無機材料や、アラミド繊維、綿、麻
、レーヨン、ビニロン、テトロン、アクリル等の各種繊
維が挙げられる。繊維束４の形態としては、例えばロー
ビング、ロービングクロス、平織りクロス、ヤーンを織
ったもの、チョツプドストランドを無定方向に積み重ね
てシート状にしたもの（マット）等が挙げられ、繊維束
４の形態に限定されるものではない。また、本発明で使
用し得る樹脂としては、例えばポリエチレン、ポリプロ
ピレン、ポリスチレン、ポリアミド、ポリカーボネート
、ポリエチレンテレフタレート等の熱可塑性樹脂や、ポ
リエステル、エポキシ樹脂、フェノール樹脂、メラミン
樹脂等の熱硬化性樹脂が挙げられ、溶融粘度の比較的高
い熱可塑性樹脂でも好適に使用される。The fiber bundle that can be used in the present invention can be any fiber bundle conventionally used for FRP (fiber reinforced plastic) or FRTP (fiber reinforced thermoplastic), such as glass fiber, carbon fiber, Examples include inorganic materials such as boron fibers and whiskers, and various fibers such as aramid fibers, cotton, linen, rayon, vinylon, Tetoron, and acrylic. Examples of the form of the fiber bundle 4 include roving, roving cloth, plain weave cloth, yarn woven material, and sheet-like material (mat) made by stacking chopped strands in an arbitrary direction. It is not limited to the form of Further, examples of resins that can be used in the present invention include thermoplastic resins such as polyethylene, polypropylene, polystyrene, polyamide, polycarbonate, and polyethylene terephthalate, and thermosetting resins such as polyester, epoxy resin, phenol resin, and melamine resin. Therefore, thermoplastic resins with relatively high melt viscosity are also suitably used.
（作用）
溶融樹脂ａがマニホールド７へ供給されている状態で、
繊維束４がヘッドブロック５の繊維通過路１４へ連続的
に供給されると、溶融樹脂ａは繊維束４の周囲に付着及
び繊維束４内へ含浸し、冷却ロール６の回転駆動によっ
て該繊維束４はダイ出口９ａから下方へ引き取られる。(Function) While the molten resin a is being supplied to the manifold 7,
When the fiber bundle 4 is continuously supplied to the fiber passageway 14 of the head block 5, the molten resin a adheres to the periphery of the fiber bundle 4 and impregnates into the fiber bundle 4, and the cooling roll 6 is driven to rotate. The bundle 4 is drawn downward from the die outlet 9a.
ここで、マニホールド７内には溶融樹脂ａを振動させる
超音波振動子１１が配設されていることにより、超音波
振動子１１から発せられる超音波振動によって溶融樹脂
ａは振動することになる。この溶融樹脂ａの振動は溶融
樹脂ａに密度の変化を生じさせ、繊維束４の側面に対す
る溶融樹脂ａの圧力が間歇的に変化することになる。そ
の樹脂圧力が高い時に、溶融樹脂ａが繊維束４の単繊維
間を通過し、単繊維周囲に溶融樹脂ａが付着することに
なる。Here, since an ultrasonic vibrator 11 for vibrating the molten resin a is disposed in the manifold 7, the molten resin a is vibrated by the ultrasonic vibrations emitted from the ultrasonic vibrator 11. This vibration of the molten resin a causes a change in density of the molten resin a, and the pressure of the molten resin a against the side surface of the fiber bundle 4 changes intermittently. When the resin pressure is high, the molten resin a passes between the single fibers of the fiber bundle 4, and the molten resin a adheres around the single fibers.
しかも、超音波振動子１１は帯状繊維束４の表裏両側に
複数個配設されているので、繊維束４の表裏面両側から
溶融樹脂ａが繊維束４の単繊維間を複数回且つ連続的に
通過することになる。Moreover, since a plurality of ultrasonic transducers 11 are arranged on both the front and back sides of the strip-shaped fiber bundle 4, the molten resin a passes between the single fibers of the fiber bundle 4 from both the front and back sides of the fiber bundle 4 multiple times and continuously. It will pass through.
このようにして溶融樹脂ａが完全に含浸された繊維束４
は、ダイ２０の下方位置に配設された冷却ロール６で引
き取られ、ここで冷却されて繊維強化樹脂成形材料（プ
リプレグ）が作成される。The fiber bundle 4 completely impregnated with the molten resin a in this way
is taken up by a cooling roll 6 disposed below the die 20 and cooled there to create a fiber-reinforced resin molding material (prepreg).
得られた繊維強化樹脂成形材料は、用いた繊維束４の繊
維方向によって一方向強化材あるいは二方向強化材とし
て使用される。一方向強化材は、例えばボンベ、タンク
、自動車のリーフスプリング、ドライブシャフト等の材
料として使用でき、二方向強化材は主に自動車用フード
、ルーフ、デツキ、ドア、航空機の翼を支える桁等をは
じめ、すべての外板として使用することができる。The obtained fiber-reinforced resin molding material is used as a one-way reinforcing material or a two-way reinforcing material depending on the fiber direction of the fiber bundle 4 used. Unidirectional reinforcement materials can be used, for example, as materials for cylinders, tanks, automobile leaf springs, drive shafts, etc., while bidirectional reinforcement materials are mainly used for automobile hoods, roofs, decks, doors, spars that support aircraft wings, etc. It can be used as any exterior panel.
なお、前記超音波振動子１１の個数、超音波振動子１１
から発せられる周波数及びその強さ等は、適宜変更可能
であり、繊維束４の種類とマトリックス樹脂ａの種類等
によって最適化される。超音波振動子１１による振動を
調整することによって、得られる繊維強化樹脂成形材料
の繊維含有率を自由に調整することができる。また、本
発明は、例えばポリエステル、エポキシ樹脂、フェノー
ル樹脂、メラミン樹脂等の熱硬化性樹脂を繊維束４に含
浸させて繊維強化熱硬化性樹脂成形材料を製造する場合
にも適用することができる。振動発生装置１１としては
溶融樹脂ａに脈動を発生させる往復駆動可能なピストン
等の機械式の振動部材で構成しても良い。In addition, the number of ultrasonic transducers 11, the ultrasonic transducers 11
The frequency emitted from the fiber bundle 4, its strength, etc. can be changed as appropriate, and are optimized depending on the type of fiber bundle 4, the type of matrix resin a, etc. By adjusting the vibration by the ultrasonic vibrator 11, the fiber content of the resulting fiber-reinforced resin molding material can be adjusted freely. Furthermore, the present invention can also be applied to the case where a fiber reinforced thermosetting resin molding material is manufactured by impregnating the fiber bundle 4 with a thermosetting resin such as polyester, epoxy resin, phenol resin, or melamine resin. . The vibration generator 11 may be composed of a mechanical vibrating member such as a reciprocating piston that generates pulsations in the molten resin a.
スｍ
第２図及び第３図には他の実施例が示されている。この
実施例では、ダイ出口９ａの近傍位置に設けられた固定
ダイリップ１５及び可動ダイリップ１２の繊維通過路１
４側の側面にそれぞれ超音波振動子１２が装着され、超
音波振動子１２の側−面全面から超音波を発するように
構成されている。この実施例によれば、超音波振動子１
１が可動ダイリップ１２に装着されているので、可動ダ
イリップ１２に取付けられた調製ボルト１２ｂを回すこ
とにより、ダイスリット幅の調製と同時に振動の強さを
調整することもできる。Other embodiments are shown in FIGS. 2 and 3. In this embodiment, the fiber passage path 1 of the fixed die lip 15 and the movable die lip 12 provided near the die outlet 9a is
Ultrasonic transducers 12 are attached to each of the four side surfaces, and ultrasonic waves are emitted from the entire side surface of the ultrasonic transducer 12. According to this embodiment, the ultrasonic transducer 1
1 is attached to the movable die lip 12, by turning the adjustment bolt 12b attached to the movable die lip 12, it is possible to adjust the die slit width and the vibration intensity at the same time.
（発明の効果）
このように、本発明によれば、溶融樹脂に振動を与える
ようにしているので、溶融樹脂の振動にによって溶融樹
脂を繊維束の単繊維間を通過させて、樹脂の含浸性を向
上することができる。しかも、樹脂の溶融温度を特に上
げることもなく、樹脂の含浸性を上げることができるの
で、樹脂の熱劣化や成形品の強度低下を招くこともない
。さらに本発明の製造装置は、ダイのウッドブロック内
に超音波を与える装置を設けるだけの簡単な構成で上記
のように樹脂の含浸性を上げることができるか・ら、従
来の５ように樹脂を粉末化する工程や樹脂含浸槽等を必
要とせず、製造工程が簡略化できると共に、生産コスト
を低減することもできる。(Effects of the Invention) As described above, according to the present invention, since vibration is applied to the molten resin, the molten resin is passed between the single fibers of the fiber bundle by the vibration of the molten resin, thereby impregnating the resin. can improve sexual performance. Furthermore, since the impregnating properties of the resin can be increased without particularly raising the melting temperature of the resin, thermal deterioration of the resin and reduction in strength of the molded product are not caused. Furthermore, the manufacturing apparatus of the present invention can improve the impregnating property of the resin as described above with a simple configuration of simply installing a device that applies ultrasonic waves in the wood block of the die. There is no need for a powdering process or a resin impregnation tank, which simplifies the manufacturing process and reduces production costs.
４、 の な１
第１図は本発明一実施例のダイの断面図、第２図はダイ
の他の実施例の断面図、第３図は第２図のＡ部分の拡大
断面図、第４図はプルトルージッンタイプの製造装置の
全体概略側面図、第５図は従来のダイの断面図である。4. No. 1 Figure 1 is a sectional view of a die according to one embodiment of the present invention, Figure 2 is a sectional view of another embodiment of the die, Figure 3 is an enlarged sectional view of part A in Figure 2, and Figure 3 is an enlarged sectional view of part A in Figure 2. FIG. 4 is an overall schematic side view of a pultrusion type manufacturing apparatus, and FIG. 5 is a sectional view of a conventional die.
４・・・繊維束、６・・・引き取り手段、７・・・マ・
二ホールド、ｌＯ・・・樹脂流路、１１．１２・・・振
動発生装置、１４・・・繊維通過路、２０・・・ダイ、
ａ・・・溶融樹脂。4... Fiber bundle, 6... Taking means, 7... Ma.
2 hold, lO...resin flow path, 11.12...vibration generator, 14...fiber passage, 20...die,
a... Molten resin.
以上that's all
Claims (1)
溶融樹脂を含浸させた後、溶融樹脂が含浸された繊維束
を引き出して溶融樹脂を硬化させる繊維強化樹脂成形材
料の製造方法であって、前記繊維束に溶融樹脂を含浸さ
せる際に、溶融樹脂に振動を与えることを特徴とする繊
維強化樹脂成形材料の製造方法。 ２、連続的に供給される繊維束が通過する繊維通過路と
、該繊維通過路の一部に設けられ溶融樹脂が供給される
マニホールドと、溶融樹脂に振動を与える振動発生装置
とを有するダイと、 該溶融樹脂が含浸された繊維束を前記ダイから引き取る
引き取り手段と、を具備することを特徴とする繊維強化
樹脂成形材料の製造装置。[Claims] 1. A fiber that continuously supplies a fiber bundle into a molten resin, impregnates the fiber bundle with the molten resin, and then pulls out the fiber bundle impregnated with the molten resin to harden the molten resin. 1. A method for producing a fiber-reinforced resin molding material, the method comprising: applying vibration to the molten resin when impregnating the fiber bundle with the molten resin. 2. A die having a fiber passageway through which a continuously supplied fiber bundle passes, a manifold provided in a part of the fiber passageway to which molten resin is supplied, and a vibration generator that vibrates the molten resin. An apparatus for producing a fiber-reinforced resin molding material, comprising: a taking-off means for taking off the fiber bundle impregnated with the molten resin from the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP111588A JPH01178412A (en) | 1988-01-06 | 1988-01-06 | Manufacture of fiber-reinforced resin molding material and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP111588A JPH01178412A (en) | 1988-01-06 | 1988-01-06 | Manufacture of fiber-reinforced resin molding material and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01178412A true JPH01178412A (en) | 1989-07-14 |
Family
ID=11492460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP111588A Pending JPH01178412A (en) | 1988-01-06 | 1988-01-06 | Manufacture of fiber-reinforced resin molding material and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01178412A (en) |
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