JP3483380B2 - Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article - Google Patents

Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article

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Publication number
JP3483380B2
JP3483380B2 JP00480696A JP480696A JP3483380B2 JP 3483380 B2 JP3483380 B2 JP 3483380B2 JP 00480696 A JP00480696 A JP 00480696A JP 480696 A JP480696 A JP 480696A JP 3483380 B2 JP3483380 B2 JP 3483380B2
Authority
JP
Japan
Prior art keywords
long
liquid
fiber
raw material
catalyst
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.)
Expired - Fee Related
Application number
JP00480696A
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Japanese (ja)
Other versions
JPH09193184A (en
Inventor
幹夫 南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP00480696A priority Critical patent/JP3483380B2/en
Publication of JPH09193184A publication Critical patent/JPH09193184A/en
Application granted granted Critical
Publication of JP3483380B2 publication Critical patent/JP3483380B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明が属する技術分野】この発明は、長繊維で補強さ
れた発泡成形体を連続的に製造する方法およびその装置
に関するものであり、特に長繊維補強ポリウレタン発泡
成形体の製造方法および装置として好適である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for continuously producing a foam-molded article reinforced with long fibers, and particularly suitable as a method and apparatus for producing a long-fiber-reinforced polyurethane foam-molded article. Is.

【0002】[0002]

【従来の技術】木材に代えて建材等の構造材として使用
し得る機械的強度に優れた素材として、長繊維補強ポリ
ウレタン発泡成形体が知られている。長繊維補強ポリウ
レタン発泡成形体は、ポリウレタンの発泡性樹脂液を長
繊維束(例えばガラスロービング)等の連続繊維に連続
的に含浸させ、これを金属ベルトの表面で4面が囲まれ
る成形用通路内に導き、発泡硬化させて製造される。す
なわち長繊維補強ポリウレタン発泡成形体は、図3の様
に長繊維束101に発泡性樹脂液102を含浸する工程
A、前記の発泡性樹脂液102を発泡させて成形中間構
体110を成形する工程B、前記の成形中間構体110
を引取機によって引き取る工程C、前記の引き取られた
成形中間構体110の表面を仕上げる工程D、そして最
後に、表面を仕上げられた成形中間構体110を所定の
寸法に切断して成形体1を得る工程Eから製造される。
2. Description of the Related Art A long-fiber-reinforced polyurethane foam molding is known as a material excellent in mechanical strength that can be used as a structural material such as a building material in place of wood. The long-fiber-reinforced polyurethane foam molding is a molding passage in which continuous fibers such as long-fiber bundles (for example, glass roving) are continuously impregnated with a polyurethane foaming resin liquid, and four surfaces are surrounded by the surface of a metal belt. It is produced by foaming and hardening it inside. That is, in the long-fiber-reinforced polyurethane foam-molded product, a process A of impregnating the long-fiber bundle 101 with the foamable resin liquid 102 as shown in FIG. 3, and a process of foaming the foamable resin liquid 102 to mold the molding intermediate structure 110. B, the molding intermediate structure 110 described above
With a take-up machine, a step D of finishing the surface of the molded intermediate structure 110 thus taken off, and finally, the molded intermediate structure 110 having the surface finished is cut into a predetermined size to obtain a molded body 1. Manufactured from process E.

【0003】長繊維束101に発泡性樹脂液102を含
浸する工程Aでは、繊維束供給部120から供給される
繊維100を幅方向に配列して一方向に引き揃えられた
長繊維束101が形成される。この長繊維束101に散
布装置(ミキシング装置)121から発泡ウレタン等の
発泡性樹脂液102を吐出した後、発泡性樹脂液102
が揉み板122によって長繊維束101に揉み込まれ、
均等に分散させる。この発泡性樹脂液102を含浸した
長繊維束101は後の工程Bに送られる。
In the step A in which the long fiber bundle 101 is impregnated with the foamable resin liquid 102, the fibers 100 supplied from the fiber bundle supply unit 120 are arranged in the width direction and the long fiber bundle 101 is aligned in one direction. It is formed. After the foaming resin liquid 102 such as urethane foam is discharged from the spraying device (mixing device) 121 to the long fiber bundle 101, the foaming resin liquid 102 is discharged.
Is kneaded into the long fiber bundle 101 by the kneading plate 122,
Distribute evenly. The long fiber bundle 101 impregnated with the foamable resin liquid 102 is sent to the subsequent step B.

【0004】この工程Bでは、発泡性樹脂液102を含
浸した長繊維束101を成形用通路130内に導入し、
成形用通路130内で発泡性樹脂液102を発泡させる
と共に該液を硬化し、長繊維補強ポリウレタン発泡成形
体の成形中間構体110が帯状に連続して製造される。
成形用通路130は図4の様に、上下一対のエンドレス
ベルト131,131と左右一対のエンドレスベルト1
33とによって4面が囲繞される密閉された空間によっ
て形成される。
In this step B, the long fiber bundle 101 impregnated with the foamable resin liquid 102 is introduced into the molding passage 130,
The foamable resin liquid 102 is foamed in the molding passage 130 and the liquid is cured, so that the molding intermediate structure 110 of the long fiber reinforced polyurethane foam molding is continuously manufactured in a strip shape.
As shown in FIG. 4, the molding passage 130 includes a pair of upper and lower endless belts 131 and 131 and a pair of left and right endless belts 1.
It is formed by a closed space whose four sides are surrounded by 33 and 33.

【0005】このような成形用通路130内は、熱風発
生機132から送られる熱風によって加熱される。この
熱によって、成形用通路130内で長繊維束101に含
浸している発泡性樹脂液102の反応が進行し、発泡が
促進されると共に樹脂がキュアされ、成形用通路130
内に成形中間構体110が充満する。成形用通路130
内で、発泡性樹脂液102と繊維100とが均一に充満
して、硬化すると、規定寸法の成形中間構体110が連
続的に製造される。
The inside of such a molding passage 130 is heated by the hot air sent from the hot air generator 132. Due to this heat, the reaction of the expandable resin liquid 102 with which the long fiber bundle 101 is impregnated in the molding passage 130 progresses, foaming is promoted and the resin is cured, and the molding passage 130 is formed.
The molding intermediate structure 110 is filled therein. Molding passage 130
When the foamable resin liquid 102 and the fibers 100 are uniformly filled therein and cured, the molding intermediate structure 110 having a specified dimension is continuously manufactured.

【0006】ところで従来技術の長繊維補強ポリウレタ
ン発泡成形体を製造する方法においては、原料供給手段
は、特開昭53−48866号に開示された方法が一般
的である。すなわち特開昭53−48866号に開示さ
れた方法は、長繊維補強発泡ポリウレタン樹脂成形体を
製造するために、ポリオールと発泡剤及び触媒を予めタ
ンクで混合してポリオール成分液を作成し、散布装置1
21内で、別途供給されたイソシアネートと混合され
る。
By the way, in the conventional method for producing a long-fiber-reinforced polyurethane foamed molded article, the method disclosed in JP-A-53-48866 is generally used as a raw material supplying means. That is, the method disclosed in JP-A-53-48866 discloses that a polyol, a foaming agent and a catalyst are mixed in a tank in advance to prepare a polyol component liquid and sprayed in order to produce a long fiber reinforced polyurethane foam molded product. Device 1
In 21, it is mixed with separately supplied isocyanate.

【0007】[0007]

【発明が解決しようとする課題】しかし、ポリオールと
発泡剤及び触媒を予めタンクで混合する方法は、バッチ
工程であるために、連続的な成形法においては無駄の多
い製法となっている。例えば、ポリオール成分液を連続
的に供給するためには、別個に混合タンクやサービスタ
ンク等が必要となり、設備費・場所に無駄が発生し、ま
た、原料配合変更時に、サービスタンク内の樹脂の抜き
取り作業が必要であり、作業工数がかかると共に設備稼
働率が低くなる。
However, the method of preliminarily mixing the polyol, the blowing agent and the catalyst in the tank is a batch process, and therefore is a wasteful manufacturing method in the continuous molding method. For example, in order to continuously supply the polyol component liquid, a separate mixing tank, service tank, etc. are required, resulting in waste of equipment cost and location, and when changing the raw material mix, It requires extraction work, which requires more man-hours and lowers the facility operation rate.

【0008】本発明の課題は、ポリオールと発泡剤及び
触媒などの発泡性樹脂液を連続的に混合して、そのポリ
オール成分液を連続的に供給することができると共に、
上記発泡剤及び触媒の混入量を容易に変更できる長繊維
補強発泡成形体の製造方法を提供するところにある。
An object of the present invention is to continuously mix a polyol and a foaming resin liquid such as a foaming agent and a catalyst so that the polyol component liquid can be continuously supplied.
It is an object of the present invention to provide a method for producing a long fiber-reinforced foamed molded product, in which the amounts of the foaming agent and the catalyst mixed can be easily changed.

【0009】[0009]

【課題を解決するための手段】上記課題を解決するため
の発明は、多数の一方向に引き揃えられた長繊維束をそ
の長手方向に連続的に進行させ、進行する上記長繊維束
にポリオールを主成分とするポリオール成分液と、イソ
シアネートを主成分とするイソシアネート成分液を直前
に混合した発泡性樹脂液を散布し、成形用通路に導いて
該成形用通路内で発泡性樹脂液の発泡及び硬化を行わし
める長繊維補強発泡成形体の製造方法において、ポリオ
ール成分液はポリオールと発泡剤及び触媒を連続的に混
合して作成されることを特徴とする長繊維補強ポリウレ
タン発泡成形体の製造方法である。
SUMMARY OF THE INVENTION The invention for solving the above-mentioned problems is directed to a large number of filament bundles aligned in one direction and continuously advancing in the longitudinal direction, and a polyol is added to the advancing filament bundle. A foaming resin liquid prepared by mixing a polyol component liquid containing as a main component with an isocyanate component liquid containing an isocyanate as a main component immediately before is guided to a molding passage to foam the foaming resin liquid in the molding passage. And a method for producing a long-fiber-reinforced foamed molded article, wherein the polyol component liquid is prepared by continuously mixing a polyol, a foaming agent and a catalyst in the method for producing a long-fiber-reinforced polyurethane expanded molded article. Is the way.

【0010】本発明の製造方法によれば、発泡性樹脂液
を原料の供給時点で連続的に混合し、その混合液を連続
的に長繊維束に供給していくので、従来の様に、混合タ
ンク及び混合液を連続的に供給するためのサービスタン
ク等が不要となり、設備費・場所の無駄が解消される。
According to the manufacturing method of the present invention, the foamable resin liquid is continuously mixed at the time of supplying the raw materials, and the mixed liquid is continuously supplied to the long fiber bundle. A mixing tank and a service tank for continuously supplying the mixed liquid are not required, and waste of equipment cost and space is eliminated.

【0011】特に、発泡性樹脂液の各混合成分を押出機
に供給し、この押出機で混合して長繊維に散布する方法
であれば、発泡性樹脂液を構成する発泡剤及び触媒の混
入量をこの押出機への供給において瞬時に変更すること
ができる。また、当該押出機を二軸同方向回転式とする
と、押出機内で例えば発泡剤及び触媒とポリオールを均
一かつ温度上昇を抑えて混合することができる。
Particularly, in the method of supplying the respective mixed components of the foamable resin liquid to an extruder and mixing them by the extruder to disperse them into long fibers, mixing of a foaming agent and a catalyst constituting the foamable resin liquid. The quantity can be changed instantaneously in the feed to this extruder. Further, when the extruder is a twin-screw co-rotating type, for example, the foaming agent, the catalyst, and the polyol can be uniformly mixed in the extruder while suppressing a temperature rise.

【0012】また本発明の基本概念は、樹脂素材として
ポリウレタン以外のものを利用する場合にも応用するこ
とができる。すなわちポリウレタン以外のものを利用す
る場合におけるもう一つの発明は、多数の一方向に引き
揃えられた長繊維束をその長手方向に連続的に進行さ
せ、進行する上記長繊維束に主成分の異なる2以上の原
料液を直前に混合した発泡性樹脂液を散布し、成形用通
路に導いて該成形用通路内で発泡性樹脂液の発泡及び硬
化を行わしめる長繊維補強発泡成形体の製造方法におい
て、少なくとも一方の原料液はその主成分と発泡剤及び
触媒を連続的に混合して作成されることを特徴とする長
繊維補強発泡成形体の製造方法である。
The basic concept of the present invention can also be applied to the case where a resin material other than polyurethane is used. That is, another invention in the case of using a material other than polyurethane is that a large number of filament bundles aligned in one direction are continuously advanced in the longitudinal direction, and the advancing filament bundles have different main components. A method for producing a long-fiber-reinforced foamed molded product, in which a foamable resin liquid prepared by mixing two or more raw material liquids immediately before is sprayed and guided to a molding passage to foam and cure the foamable resin liquid in the molding passage. In the above method, at least one raw material liquid is prepared by continuously mixing the main component thereof with a foaming agent and a catalyst, and is a method for producing a long fiber-reinforced foamed molded product.

【0013】また上記した発明においては、発泡剤と触
媒は、ポンプによって連続的に供給され、これらの混合
比が調節可能であることが望ましい。
Further, in the above-mentioned invention, it is desirable that the foaming agent and the catalyst are continuously supplied by a pump, and the mixing ratio of them can be adjusted.

【0014】さらにこれらの製造方法を実現するための
装置の発明は、成形用通路と、多数の長繊維束をその長
手方向に連続的に進行させて前記成形用通路内に導入す
る装置と、二以上の原料液を混合して該混合液を長繊維
束に吐出するミキシング装置と、該ミキシング装置に二
以上の原料液を供給するポンプを有する長繊維補強発泡
成形体の製造装置において、予混合装置と、該予混合装
置に発泡剤を供給するポンプと、前記予混合装置に触媒
を供給するポンプを有し、予混合装置ではこれらのポン
プから供給された発泡剤および触媒と原料液の内の一つ
の主成分とが予め混合され、この予混合原料が前記ミキ
シング装置に供給されて残る原料液と混合されることを
特徴とする長繊維補強発泡成形体の製造装置である。
Further, the invention of an apparatus for realizing these manufacturing methods is a molding passage, and an apparatus for continuously advancing a large number of long fiber bundles in the longitudinal direction into the molding passage. A mixing device for mixing two or more raw material liquids and discharging the mixed liquid into a long fiber bundle, and an apparatus for manufacturing a long fiber reinforced foamed molded article having a pump for supplying two or more raw material liquids to the mixing device, The premixing device includes a mixing device, a pump that supplies a foaming agent to the premixing device, and a pump that supplies a catalyst to the premixing device. In the premixing device, the foaming agent and the catalyst and the raw material liquid supplied from these pumps are included. One of the main components is mixed in advance, and this premixed raw material is supplied to the mixing device and mixed with the remaining raw material liquid.

【0015】ここで予混合装置としては、押出機の利用
が望ましい。本発明の製造装置では、特に予混合装置を
有し、この予混合装置に各ポンプから供給された触媒等
が導入され、例えばポリオール成分液等の原料液の内の
一つの主成分と発泡剤及び触媒が連続的に予混合され
る。すなわち、従来混合タンク等によってバッチ式に行
われていた予混合が、本発明では予混合装置によって連
続的に行われる。そしてこの予混合原料は、ミキシング
装置に供給され、例えばイソシアネート成分液等の残る
原料液と最終混合される。
An extruder is preferably used as the premixing device. The production apparatus of the present invention has a premixing device, and the catalyst supplied from each pump is introduced into this premixing device. For example, one main component of the raw material liquid such as the polyol component liquid and the blowing agent are introduced. And the catalyst is continuously premixed. That is, in the present invention, the premixing which is conventionally performed in a batch type by a mixing tank or the like is continuously performed by the premixing device. Then, this premixed raw material is supplied to the mixing device and finally mixed with the remaining raw material liquid such as an isocyanate component liquid.

【0016】[0016]

【発明の実施の形態】本発明を実施するにあたり具体的
に好ましい形態を順次述べていく。本発明に用いられる
長繊維束は多数の長繊維が一方向に引き揃えられ形成さ
れたものであり、長繊維としては天然繊維や合成繊維、
無機質繊維等のうちの長尺の繊維が使用され得るが、特
に構造材としての用途を有するものを製造するという観
点からしてはガラス繊維が最も好適である。
BEST MODE FOR CARRYING OUT THE INVENTION Specific preferred modes for carrying out the present invention will be sequentially described. The long fiber bundle used in the present invention is formed by aligning a large number of long fibers in one direction, and as the long fibers, natural fibers or synthetic fibers,
Of the inorganic fibers and the like, long fibers can be used, but glass fibers are most suitable from the viewpoint of producing one having a use as a structural material.

【0017】また、発泡性樹脂液とは、比較的短時間で
発泡し硬化する液状の樹脂を意味し、例えばポリウレタ
ン樹脂、フェノール樹脂、ポリエステル樹脂等が好適に
用いられる。
The foamable resin liquid means a liquid resin that foams and cures in a relatively short time, and for example, polyurethane resin, phenol resin, polyester resin and the like are preferably used.

【0018】図1は長繊維補強発泡成形体の製法方法を
説明するための装置の概略図である。図1は、長繊維補
強発泡成形体を製造する工程の内、原料供給部分と、長
繊維束に発泡性樹脂液102を含浸する工程部分だけを
記載している。図1に示されていない工程および使用す
る装置類は、図3,図4で説明した従来技術と同一であ
る。図中、1はポリオールで、ポンプ11により押出機
(予混合装置)5に供給される。2は発泡剤、3は触媒
で、それぞれ同様に、ポンプ21、31より押出機5に
供袷される。これらのポリオール1、発泡剤2及び触媒
3の各混合成分は、押出機5内で混合されてポリオール
を主成分とするポリオール成分液となり、ポンプ51に
より散布装置6(ミキシング装置)に移送される。4は
ジフェニルメタンイソシアネートで、ポンプ41により
散布装置6に供給され、散布装置6内で前記ポリオール
成分液と混合されて、散布装置6から長繊維束7上へと
散布される。
FIG. 1 is a schematic view of an apparatus for explaining a method for producing a long fiber reinforced foam molded article. FIG. 1 shows only the raw material supply portion and the step portion of impregnating the long fiber bundle with the foamable resin liquid 102 in the step of producing the long fiber-reinforced foamed molded article. The steps and devices used that are not shown in FIG. 1 are the same as those in the prior art described with reference to FIGS. In the figure, 1 is a polyol, which is supplied to an extruder (premixing device) 5 by a pump 11. 2 is a foaming agent and 3 is a catalyst, which are similarly fed to the extruder 5 from pumps 21 and 31, respectively. The respective mixed components of the polyol 1, the foaming agent 2 and the catalyst 3 are mixed in the extruder 5 to become a polyol component liquid containing polyol as a main component, and transferred to the spraying device 6 (mixing device) by the pump 51. . Reference numeral 4 denotes diphenylmethane isocyanate, which is supplied to the spraying device 6 by the pump 41, is mixed with the polyol component liquid in the spraying device 6, and is sprayed from the spraying device 6 onto the long fiber bundle 7.

【0019】図中、8は揉み板であり、長繊維束7の進
行方向と直角方向に往復運動をして、含浸板9と該揉み
板8との間に挟まれた長繊維束7を揉むようになされて
いる。10は成形用通路であり、この中で長繊維束7に
含浸された発泡性樹脂液が発泡すると共に硬化して、該
成形用通路10の断面形状と同じ形状に成形される。そ
して図示しない引取り機を一定速度で駆動することによ
り、長繊維束7に一定速度の前進運動が与えられる。
In the figure, 8 is a rubbing plate, which reciprocates in a direction at right angles to the traveling direction of the long fiber bundle 7 so that the long fiber bundle 7 sandwiched between the impregnating plate 9 and the rubbing plate 8 is reciprocated. It is made to rub. Reference numeral 10 denotes a molding passage in which the foamable resin liquid impregnated in the long fiber bundle 7 is foamed and hardened to be molded into the same shape as the cross-sectional shape of the molding passage 10. By driving a take-up machine (not shown) at a constant speed, the long fiber bundle 7 is given a forward motion at a constant speed.

【0020】本発明の方法により長繊維補強発泡成形体
を製造するには、適正な定量ポンプを用いて発泡剤及び
触媒を定量的に供給し、押出機5内でその発泡剤及び触
媒とポリオールを均一かつ温度上昇を抑えて混合するこ
とが重要である。均一に混合させるためには、押出機5
は図2に示す様な二軸同方向回転式が好ましく、混合物
の温度上昇を抑えるためには、スクリュー52を適正な
形状にする必要がある。またスクリュー回転数も均一混
合と温度上昇の両方に影響するために、適正回転数に設
定すると共に、シリンダー53は、冷却水で冷却する方
式が好ましい。この様にして押出機5で均一に混合され
た発泡剤及び触媒を含むポリオール成分液は、ポンプ5
1により散布装置6に移送され、ジフェニルメタンイソ
シアネートと混合されて長繊維束7上に散布され、揉み
板8と含浸板9との間で揉まれて長繊維束7中に均一に
含浸される。次に長繊維束7は成形用通路10内に導か
れ、その中で発泡並びに硬化が行われ、成形用通路10
の断面形状に応じて成形されて長尺発泡体となり、成形
用通路10を出て引取り機を通過した時点で定尺に切断
される。
In order to produce a long-fiber-reinforced foamed molded product by the method of the present invention, the foaming agent and the catalyst are quantitatively supplied by using an appropriate metering pump, and the foaming agent and the catalyst and the polyol are placed in the extruder 5. It is important to mix them uniformly while suppressing the temperature rise. To ensure uniform mixing, extruder 5
Is preferably a two-axis co-rotating type as shown in FIG. 2, and in order to suppress the temperature rise of the mixture, the screw 52 needs to have an appropriate shape. Since the screw rotation speed also affects both uniform mixing and temperature rise, it is preferable to set the rotation speed to an appropriate value and cool the cylinder 53 with cooling water. The polyol component liquid containing the foaming agent and the catalyst thus uniformly mixed in the extruder 5 is supplied to the pump 5
1 is transferred to the spraying device 6, mixed with diphenylmethane isocyanate and sprayed on the long fiber bundle 7, and is kneaded between the kneading plate 8 and the impregnating plate 9 to uniformly impregnate the long fiber bundle 7. Next, the long fiber bundles 7 are guided into the molding passage 10 where they are foamed and cured to form the molding passage 10
Is formed into a long foam according to the cross-sectional shape, and is cut to a fixed length when it exits the molding passage 10 and passes through the take-up machine.

【0021】上述のような方法により、発泡剤及び触媒
をポリオールと連続的に混合することが可能となり、混
合の均一性に関しては、発泡剤及び触媒を供給するポン
プ21、31の供給精度が±1%程度であれば、従来の
バッチ工程より良好な混合状態を得ることが可能であ
る。またポンプ11及び41とポンプ21、31は比例
制御方式で連動し、原料配合の変更時にはポンプ11及
び41とポンプ21、31の吐出比率を変更することに
より瞬時に変更可能である。
By the method as described above, it is possible to continuously mix the foaming agent and the catalyst with the polyol. Regarding the uniformity of the mixing, the supply accuracy of the pumps 21 and 31 for supplying the foaming agent and the catalyst is ±. If it is about 1%, it is possible to obtain a better mixed state than the conventional batch process. Further, the pumps 11 and 41 and the pumps 21 and 31 are interlocked with each other by a proportional control method, and can be instantaneously changed by changing the discharge ratio of the pumps 11 and 41 and the pumps 21 and 31 when changing the raw material mixture.

【0022】[0022]

【実施例】以下の表1に示すように、3種類の配合比率
系においてテストを行った。なお、この実施例において
使用した使用材料は以下の通りである。 使用材料 長繊維 :繊維直径13μのモノフィラメントを
多数引き揃えて1m当たり9.26gの重量のものとし
たガラスロービングを38本揃えて用いた。 ポリオール :官能基数4のプロピレンオキサイド付
加ポリエーテルポリオール 発泡剤 :蒸留水 触媒 :ジブチル錫ジラウレート イソシアネート:粗製ジフェニルメタンジイソシアネー
EXAMPLES As shown in Table 1 below, tests were conducted in three compounding ratio systems. The materials used in this example are as follows. Materials used Long fibers: 38 glass rovings having a weight of 9.26 g per 1 m were prepared by aligning a large number of monofilaments having a fiber diameter of 13 μ. Polyol: Propylene oxide-added polyether polyol foaming agent having 4 functional groups: Distilled water catalyst: Dibutyltin dilaurate isocyanate: Crude diphenylmethane diisocyanate

【0023】[0023]

【表1】 [Table 1]

【0024】 (製品寸法:幅10cm、厚さ2cm、比重:0.5) *成形方式は、すべて図1に示す方式で実施した。 *押出機 ・形式:二軸同方向回転式 ・スクリュー外径 :φ50mm ・スクリュー長 :445mm ・スクリュー回転数 :90rpm ・駆動モーター :DCモータ 3.7kw[0024]     (Product dimensions: width 10 cm, thickness 2 cm, specific gravity: 0.5)   * All molding methods were performed as shown in FIG.   * Extruder ・ Type: Two-axis rotating in the same direction                 ・ Screw outer diameter: φ50 mm                 ・ Screw length: 445 mm                 ・ Screw rotation speed: 90 rpm                 ・ Drive motor: DC motor 3.7kw

【0025】この結果、3種類いずれにおいても良好な
品質の成形品が得られた。
As a result, molded products of good quality were obtained in all three types.

【0026】[0026]

【発明の効果】本発明の製造方法では、発泡剤及び触媒
を押出機(予混合装置)で連続的に混合しているため
に、従来方式では必要であった混合タンク及びサービス
タンク等が不要となり、省スペースとなり、また原料配
合変更がそれぞれの材料が入ったタンクに接続されてい
るポンプを調節することによって容易に行うことが可能
で従来方式において原料配合変更時にかかっていた時間
のロスを解消し、かつ作業工数がかからず、設備稼働率
が高くなる。
In the manufacturing method of the present invention, since the foaming agent and the catalyst are continuously mixed by the extruder (premixing device), the mixing tank and the service tank, which are required in the conventional method, are unnecessary. It saves space, and it is possible to easily change the raw material mix by adjusting the pumps connected to the tanks containing the respective materials. It also eliminates the work man-hours and increases the facility utilization rate.

【0027】さらに本発明の製造装置によると、従来、
混合タンク等によってバッチ式に行っていた原料の予混
合が、予混合装置によって連続的に行うことができ、混
合タンク等が不要となる効果がある。
Further, according to the manufacturing apparatus of the present invention, conventionally,
The premixing of the raw materials, which has been performed batchwise by the mixing tank or the like, can be continuously performed by the premixing device, and there is an effect that the mixing tank or the like is unnecessary.

【図面の簡単な説明】[Brief description of drawings]

【図1】長繊維補強発泡成形体の製法方法を説明するた
めの装置の概略図である。
FIG. 1 is a schematic view of an apparatus for explaining a method for producing a long fiber-reinforced foamed molded product.

【図2】押出機(予混合装置)の断面図である。FIG. 2 is a sectional view of an extruder (premixing device).

【図3】長繊維補強発泡成形体の製造工程を示す概略図
である。
FIG. 3 is a schematic view showing a manufacturing process of a long fiber-reinforced foamed molded product.

【図4】長繊維補強発泡成形体の製造装置の成形用通路
の断面図である。
FIG. 4 is a cross-sectional view of a molding passage of an apparatus for manufacturing a long fiber reinforced foam molded article.

【符号の説明】[Explanation of symbols]

1 ポリオール 2 発泡剤 3 触媒 4 イソシアネート 5 押出機(予混合装置) 6 散布装置(ミキシング装置) 7 長繊維 8 揉み板 9 含浸板 10 成形用通路 11 ポンプ 21 ポンプ 31 ポンプ 41 ポンプ 51 ポンプ 52 スクリュー 63 シリンダー 1 polyol 2 foaming agent 3 catalyst 4 Isocyanate 5 Extruder (premixing device) 6 Dispersing device (mixing device) 7 long fibers 8 Rubbing board 9 Impregnation plate 10 Molding passage 11 pumps 21 pumps 31 pumps 41 pumps 51 pumps 52 screw 63 cylinders

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI B29K 105:10 B29C 67/14 Z (58)調査した分野(Int.Cl.7,DB名) B29C 44/00 - 44/60,67/20 B29C 39/14 - 39/24 B29C 70/00 - 70/54 B29B 7/30 - 7/56 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI B29K 105: 10 B29C 67/14 Z (58) Fields investigated (Int.Cl. 7 , DB name) B29C 44/00-44 / 60,67 / 20 B29C 39/14-39/24 B29C 70/00-70/54 B29B 7/30-7/56

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 多数の一方向に引き揃えられた長繊維束
をその長手方向に連続的に進行させ、進行する上記長繊
維束にポリオールを主成分とするポリオール成分液と、
イソシアネートを主成分とするイソシアネート成分液を
直前に混合した発泡性樹脂液を散布し、成形用通路に導
いて該成形用通路内で発泡性樹脂液の発泡及び硬化を行
わしめる長繊維補強発泡成形体の製造方法において、ポ
リオール成分液はポリオールと発泡剤及び触媒を連続的
に混合して作成されることを特徴とする長繊維補強発泡
成形体の製造方法。
1. A polyol component liquid containing a polyol as a main component, wherein a large number of long-fiber bundles aligned in one direction are continuously advanced in the longitudinal direction, and the advancing long-fiber bundle contains a polyol as a main component.
Long-fiber-reinforced foam molding in which a foamable resin liquid prepared by mixing an isocyanate component liquid containing isocyanate as a main component is sprayed immediately before being guided to a molding passage to foam and cure the foamable resin liquid in the molding passage. In the method for producing a body, the polyol component liquid is prepared by continuously mixing a polyol, a foaming agent, and a catalyst, and a method for producing a long fiber-reinforced foamed molded article.
【請求項2】 多数の一方向に引き揃えられた長繊維束
をその長手方向に連続的に進行させ、進行する上記長繊
維束に主成分の異なる2以上の原料液を直前に混合した
発泡性樹脂液を散布し、成形用通路に導いて該成形用通
路内で発泡性樹脂液の発泡及び硬化を行わしめる長繊維
補強発泡成形体の製造方法において、少なくとも一方の
原料液はその主成分と発泡剤及び触媒を連続的に混合し
て作成されることを特徴とする長繊維補強発泡成形体の
製造方法。
2. A foaming process in which a large number of long fiber bundles aligned in one direction are continuously advanced in the longitudinal direction, and two or more raw material liquids having different main components are immediately mixed with the advancing long fiber bundles. In the method for producing a long-fiber-reinforced foamed molded product, in which a foamable resin liquid is sprayed and guided to a molding passage to foam and cure the foamable resin liquid in the molding passage, at least one raw material liquid is a main component thereof. And a foaming agent and a catalyst are continuously mixed to prepare a long-fiber-reinforced foamed molded article.
【請求項3】 発泡剤と触媒は、ポンプによって連続的
に供給され、これらの混合比が調節可能であることを特
徴とする請求項1又は2に記載の長繊維補強発泡成形体
の製造方法。
3. The method for producing a long fiber-reinforced foamed molded product according to claim 1, wherein the foaming agent and the catalyst are continuously supplied by a pump, and the mixing ratio of these is adjustable. .
【請求項4】 成形用通路と、多数の長繊維束をその長
手方向に連続的に進行させて前記成形用通路内に導入す
る装置と、二以上の原料液を混合して該混合液を長繊維
束に吐出するミキシング装置と、該ミキシング装置に二
以上の原料液を供給するポンプを有する長繊維補強発泡
成形体の製造装置において、予混合装置と、該予混合装
置に発泡剤を供給するポンプと、前記予混合装置に触媒
を供給するポンプを有し、予混合装置ではこれらのポン
プから供給された発泡剤および触媒と原料液の内の一つ
の主成分とが予め混合され、この予混合原料が前記ミキ
シング装置に供給されて残る原料液と混合されることを
特徴とする長繊維補強発泡成形体の製造装置。
4. A molding passage, an apparatus for continuously advancing a large number of long fiber bundles in the longitudinal direction thereof and introducing the bundle into the molding passage, and mixing two or more raw material liquids to obtain the mixed liquid. In a manufacturing apparatus for a long-fiber-reinforced foamed molded product, which has a mixing device for discharging a long fiber bundle and a pump for supplying two or more raw material liquids to the mixing device, a premixing device and a foaming agent are supplied to the premixing device. And a pump for supplying a catalyst to the premixing device, and the premixing device premixes the blowing agent and the catalyst supplied from these pumps with one main component of the raw material liquid. An apparatus for producing a long-fiber-reinforced foamed molded article, characterized in that a premixed raw material is supplied to the mixing device and mixed with the remaining raw material liquid.
JP00480696A 1996-01-16 1996-01-16 Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article Expired - Fee Related JP3483380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP00480696A JP3483380B2 (en) 1996-01-16 1996-01-16 Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP00480696A JP3483380B2 (en) 1996-01-16 1996-01-16 Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article

Publications (2)

Publication Number Publication Date
JPH09193184A JPH09193184A (en) 1997-07-29
JP3483380B2 true JP3483380B2 (en) 2004-01-06

Family

ID=11594015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP00480696A Expired - Fee Related JP3483380B2 (en) 1996-01-16 1996-01-16 Manufacturing method and manufacturing apparatus for long fiber reinforced foam molded article

Country Status (1)

Country Link
JP (1) JP3483380B2 (en)

Also Published As

Publication number Publication date
JPH09193184A (en) 1997-07-29

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