JP6821922B2 - A device for impregnating reinforcing fibers with resin and a method for impregnating reinforcing fibers with resin. - Google Patents
A device for impregnating reinforcing fibers with resin and a method for impregnating reinforcing fibers with resin. Download PDFInfo
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- JP6821922B2 JP6821922B2 JP2016038499A JP2016038499A JP6821922B2 JP 6821922 B2 JP6821922 B2 JP 6821922B2 JP 2016038499 A JP2016038499 A JP 2016038499A JP 2016038499 A JP2016038499 A JP 2016038499A JP 6821922 B2 JP6821922 B2 JP 6821922B2
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この発明は、炭素繊維やガラス繊維に代表される強化繊維に熱可塑性樹脂や熱硬化性樹脂を含浸させてプリプレグを製造する装置および強化繊維中に樹脂を含浸させる方法に関する。 The present invention relates to an apparatus for producing a prepreg by impregnating a reinforcing fiber typified by carbon fiber or glass fiber with a thermoplastic resin or a thermosetting resin, and a method for impregnating the reinforcing fiber with the resin.
近年、航空機、スポーツレジャー、自動車等の産業用途において、強化繊維複合材料が幅広く用いられている。この強化繊維複合材料はプリプレグと呼ばれる強化繊維中に樹脂を含浸させた中間基材を元にして、該プリプレグを重ねたり、貼りあわせたりし、その後加圧や加熱を行い、賦形することにより成形品を得る。しかしながら、効率的に強化繊維中に樹脂を含浸せしめることは難しい。 In recent years, reinforced fiber composite materials have been widely used in industrial applications such as aircraft, sports leisure, and automobiles. This reinforcing fiber composite material is based on an intermediate base material in which a resin is impregnated in a reinforcing fiber called a prepreg, and the prepregs are laminated or laminated, and then pressurized or heated to be shaped. Obtain a molded product. However, it is difficult to efficiently impregnate the reinforcing fibers with the resin.
例えば、特許文献１には多数のしごき棒によって強化繊維中に樹脂を含浸せしめる装置が開示されている。しかしながらこの方法では、しごき棒の数が多数必要となるために、装置が長大なものになるという問題点があった。また熱可塑性樹脂を含浸せしめる場合には加熱ヒーターを配置する必要があるが、特許文献１の装置では、多数のしごき棒を覆うような長大な加熱ヒーターが必要となる。 For example, Patent Document 1 discloses a device for impregnating reinforcing fibers with a resin by a large number of ironing rods. However, this method has a problem that the device becomes long because a large number of ironing rods are required. Further, when impregnating with a thermoplastic resin, it is necessary to arrange a heater, but in the apparatus of Patent Document 1, a long heater that covers a large number of ironing rods is required.
強化繊維中に熱可塑性樹脂を含浸せしめる場合には、特許文献２には、含浸ロールを強化繊維と樹脂の進行方向と直交方向に振動する方法が開示されている。しかしながらこの方法によると、ロールで加圧しながら、該ロールを横に移動するために、均一に圧力を与えることが困難であるという問題点があった。そのために広幅のプリプレグを製造することが困難である。 When the reinforcing fiber is impregnated with the thermoplastic resin, Patent Document 2 discloses a method of vibrating the impregnated roll in a direction orthogonal to the traveling direction of the reinforcing fiber and the resin. However, according to this method, there is a problem that it is difficult to uniformly apply pressure because the roll is moved laterally while being pressurized by the roll. Therefore, it is difficult to manufacture a wide prepreg.
以上の問題点に鑑み、本発明の目的は、設備が大がかりなものではなく、均一に強化繊維中に樹脂を含浸せしめることが可能であり、強化繊維と樹脂の移動速度を上昇させ、生産性の向上が可能であるプリプレグの製造装置および方法を提供することである。 In view of the above problems, an object of the present invention is that the equipment is not large-scale, the reinforcing fibers can be uniformly impregnated with the resin, the moving speed of the reinforcing fibers and the resin is increased, and the productivity is increased. It is to provide the prepreg manufacturing apparatus and method which can improve.
上記課題を解決すべく鋭意検討した結果、強化繊維および樹脂を振動させたしごき刃にかけることにより課題を解決できることを見出し、本発明を完成するに至った。即ち本発明の要旨は、以下の（１）〜（１０）に存する。 As a result of diligent studies to solve the above problems, it was found that the problems can be solved by applying the reinforcing fibers and the resin to a vibrating ironing blade, and the present invention has been completed. That is, the gist of the present invention lies in the following (1) to (10).
（１） 強化繊維と樹脂が移動する方向と直交するように、且つ前記方向に所定間隔で複数のしごき刃を配置し、隣接する２本のしごき刃の一方のしごき刃の上方を前記強化繊維と樹脂が通過するとともに他方のしごき刃の下方を前記強化繊維と樹脂が通過するような強化繊維と樹脂の走行位置とし、前記しごき刃の少なくとも１つが１ｋＨｚ以上１００ｋＨｚ以下で振動する、強化繊維中に樹脂を含浸させる装置。
（２） 超音波発生装置により前記しごき刃が振動する、上記（１）に記載の強化繊維中に樹脂を含浸させる装置。
（３） 強化繊維と樹脂を、１ｋＨｚ以上１００ｋＨｚ以下で振動するしごき刃にかけて強化繊維中に樹脂を含浸させる方法。
（４） 前記強化繊維と樹脂を、前記しごき刃に対して直交するように移動させる、上記（３）に記載の方法。
（５） 超音波発生装置により前記しごき刃を振動させる、上記（３）または（４）に記載の方法。
（６） 前記強化繊維が連続繊維であり、繊維の配向方向に強化繊維と樹脂を移動させる、上記（３）から（５）のいずれかに記載の方法。
（７） 前記強化繊維と樹脂を、一定の範囲の張力を維持しつつ一定の範囲の速度で連続的に移動させる、上記（３）から（６）のいずれかに記載の方法。
（８） 前記強化繊維と樹脂が、強化繊維に樹脂を塗布したものである、上記（３）から（７）のいずれかに記載の方法。
（９） 前記強化繊維と樹脂が、強化繊維に樹脂シートを重ねたものである、上記（３）から（７）のいずれかに記載の方法。
（１０） 前記強化繊維と樹脂が、予め強化繊維に樹脂を固着させた未含浸のプリプレグである、上記（３）から（７）のいずれかに記載の方法。
(1) A plurality of ironing blades are arranged at predetermined intervals in the direction perpendicular to the direction in which the reinforcing fiber and the resin move, and the reinforcing fiber is placed above one of the two adjacent ironing blades. In the reinforcing fiber, at least one of the ironing blades vibrates at 1 kHz or more and 100 kHz or less, with the running position of the reinforcing fiber and the resin such that the reinforcing fiber and the resin pass below the other ironing blade while the resin passes through. A device that impregnates resin.
(2) A device for impregnating a resin into the reinforcing fiber according to (1) above, wherein the ironing blade vibrates by an ultrasonic wave generator.
(3) A method in which the reinforcing fiber and the resin are impregnated with the resin by applying a squeezing blade that vibrates at 1 kHz or more and 100 kHz or less.
(4) The method according to (3) above, wherein the reinforcing fiber and the resin are moved so as to be orthogonal to the ironing blade.
(5) The method according to (3) or (4) above, wherein the ironing blade is vibrated by an ultrasonic generator.
(6) The method according to any one of (3) to (5) above, wherein the reinforcing fiber is a continuous fiber and the reinforcing fiber and the resin are moved in the orientation direction of the fiber.
(7) The method according to any one of (3) to (6) above, wherein the reinforcing fiber and the resin are continuously moved at a speed in a certain range while maintaining a tension in a certain range.
(8) The method according to any one of (3) to (7) above, wherein the reinforcing fiber and the resin are obtained by applying a resin to the reinforcing fiber.
(9) The method according to any one of (3) to (7) above, wherein the reinforcing fiber and the resin are obtained by superimposing a resin sheet on the reinforcing fiber.
(10) The method according to any one of (3) to (7) above, wherein the reinforcing fiber and the resin are unimpregnated prepregs in which the resin is previously fixed to the reinforcing fibers.
本発明によれば、しごき刃を振動させるため、含浸が極めて良好であり、そのためにしごき刃の数を減らすことができて設備が簡便なものになる。また圧力も必要でないために、均一に含浸ができ、生産速度を上げることが可能である。 According to the present invention, since the ironing blade is vibrated, the impregnation is extremely good, so that the number of ironing blades can be reduced and the equipment becomes simple. Moreover, since no pressure is required, it is possible to impregnate uniformly and increase the production speed.
また本発明によれば、しごき刃を通過する前の強化繊維と樹脂は、互いに接触していればよく、フィルム状の樹脂で強化繊維を挟み込んだもの、強化繊維に樹脂を塗工したもの、また未含浸部分が多いプリプレグなどが利用できる。 Further, according to the present invention, the reinforcing fibers and the resin before passing through the ironing blade need only be in contact with each other, and the reinforcing fibers are sandwiched between film-like resins, or the reinforcing fibers are coated with resin. Further, a prepreg having many unimpregnated parts can be used.
本発明における強化繊維および樹脂については、それぞれ特に限定されるものではなく、通常の繊維強化樹脂プラスチックの原料として使用しうるものを使用することができる。強化繊維としては、例えば、ガラス繊維、金属繊維などの無機繊維、アラミド繊維、ポリアミド繊維などの有機繊維等が挙げられ、また樹脂としては、例えば、ポリアミド樹脂、ポリオレフィン樹脂、ポリカーボネート樹脂、ＰＭＭＡ樹脂などの熱可塑性樹脂、またエポキシ樹脂、不飽和ポリエステル樹脂などの熱硬化樹脂等が利用可能である。 The reinforcing fibers and the resin in the present invention are not particularly limited, and those that can be used as raw materials for ordinary fiber reinforced resin plastics can be used. Examples of the reinforcing fiber include inorganic fibers such as glass fiber and metal fiber, organic fibers such as aramid fiber and polyamide fiber, and examples of the resin include polyamide resin, polyolefin resin, polycarbonate resin and PMMA resin. Thermoplastic resins, and heat-curable resins such as epoxy resins and unsaturated polyester resins can be used.
次に、本発明の実施形態について図面を参照して説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
［第１の実施形態］
図１は、本発明に係る繊維強化プラスチック用樹脂含浸装置の第１の実施形態の概要を示す図である。クリール１より巻きだされた強化繊維２は開繊装置３を通して平板状に開繊される。次いでダイ４より押し出された樹脂を支持ロール５上部で開繊された強化繊維に塗工する。その後ヒーター６で加熱した後に、複数の超音波発生装置８を備えたしごき刃７の間を、一定の範囲の速度と一定の範囲の張力で通すことにより、樹脂を含浸せしめる。その後冷却ロール９で冷却し巻き取り装置１０によりロール状に巻き取る。
[First Embodiment]
FIG. 1 is a diagram showing an outline of a first embodiment of a resin impregnation device for fiber reinforced plastics according to the present invention. The reinforcing fiber 2 unwound from the creel 1 is opened in a flat plate shape through the fiber opening device 3. Next, the resin extruded from the die 4 is applied to the reinforcing fibers opened at the upper part of the support roll 5. After that, after heating with the heater 6, the resin is impregnated by passing it between the ironing blades 7 provided with the plurality of ultrasonic wave generators 8 at a speed in a certain range and a tension in a certain range. After that, it is cooled by the cooling roll 9 and wound into a roll by the winding device 10.
［第２の実施形態］
第１の実施形態と同様であるが、樹脂を塗工するのではなく、フィルムロール１１より巻きだされた樹脂フィルム１２を用い、強化繊維を挟み込んでニップロール１３で固定する。それ以外は第１の実施形態と同様である。
[Second Embodiment]
Similar to the first embodiment, but instead of coating the resin, a resin film 12 unwound from the film roll 11 is used, and the reinforcing fibers are sandwiched and fixed by the nip roll 13. Other than that, it is the same as that of the first embodiment.
［第３の実施形態］
あらかじめ樹脂を固着させた未含浸のプリプレグ１４を準備し、それを加熱し、複数のしごき刃を通して、巻き取る。
[Third Embodiment]
An unimpregnated prepreg 14 to which a resin is fixed in advance is prepared, heated, and wound up through a plurality of ironing blades.
本発明の強化繊維中に樹脂を含浸させる装置は、強化繊維と樹脂が移動する方向と直交するように、且つ前記移動方向に所定間隔で複数のしごき刃を配置している。隣接する２本のしごき刃の一方のしごき刃の上方を前記強化繊維と樹脂が通過し、また、他方のしごき刃の下方を前記強化繊維と樹脂が通過するように、強化繊維と樹脂の走行位置が設定されている。しごき刃の少なくとも１つは、１ｋＨｚ以上１００ｋＨｚ以下で振動する。しごき刃にこの振動機能を付することにより、含浸が極めて良好であり、そのためにしごき刃の数を減らすことができて設備が簡便なものになる。 In the apparatus for impregnating the reinforcing fiber of the present invention with the resin, a plurality of ironing blades are arranged so as to be orthogonal to the direction in which the reinforcing fiber and the resin move, and at predetermined intervals in the moving direction. Running of the reinforcing fiber and the resin so that the reinforcing fiber and the resin pass above one of the two adjacent ironing blades and the reinforcing fiber and the resin pass below the other ironing blade. The position is set. At least one of the ironing blades vibrates at 1 kHz or more and 100 kHz or less. By adding this vibration function to the ironing blade, impregnation is extremely good, so that the number of ironing blades can be reduced and the equipment becomes simple.
前記しごき刃の振動は、振動の均一性の観点から、超音波発生装置により振動させることが好ましい。 The vibration of the ironing blade is preferably vibrated by an ultrasonic generator from the viewpoint of vibration uniformity.
本発明のもう一つの形態として、強化繊維と樹脂を、１ｋＨｚ以上１００ｋＨｚ以下で振動するしごき刃にかけて強化繊維中に樹脂を含浸させる方法が挙げられる。 As another embodiment of the present invention, there is a method of impregnating the reinforcing fibers with the resin by applying the reinforcing fibers and the resin to an ironing blade vibrating at 1 kHz or more and 100 kHz or less.
前記強化繊維と樹脂としては、［１］強化繊維に樹脂を塗布したもの、［２］強化繊維に樹脂シートを重ねたもの、［３］予め強化繊維に樹脂を固着させた未含浸のプリプレグ、等が挙げられる。 The reinforcing fibers and the resin include [1] a reinforcing fiber coated with a resin, [2] a reinforcing fiber overlaid with a resin sheet, and [3] an unimpregnated prepreg in which a resin is previously fixed to the reinforcing fiber. And so on.
前記強化繊維と樹脂は、しごき刃に対して直交するように移動させる。強化繊維と樹脂は、一定の範囲の張力を維持しつつ一定の範囲の速度で連続的に移動させることが好ましい。強化繊維が連続繊維である場合は、繊維の配向方向に強化繊維と樹脂を移動させる。 The reinforcing fibers and the resin are moved so as to be orthogonal to the ironing blade. It is preferable that the reinforcing fibers and the resin are continuously moved at a speed in a certain range while maintaining a tension in a certain range. When the reinforcing fiber is a continuous fiber, the reinforcing fiber and the resin are moved in the direction of fiber orientation.
１：クリール
２：強化繊維
３：開繊装置
４：ダイ塗工装置
５：支持ロール
６：加熱装置
７：しごき刃
８：超音波発生装置
９：冷却ロール
１０：巻き取り装置
１１：フィルムロール
１２：樹脂フィルム
１３：ニップロール
１４：未含浸プリプレグ
1: Crill 2: Reinforcing fiber 3: Spreading device 4: Die coating device 5: Support roll 6: Heating device 7: Ironing blade 8: Ultrasonic generator 9: Cooling roll 10: Winding device 11: Film roll 12 : Resin film 13: Nip roll 14: Unimpregnated prepreg
Claims (11)
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| JP2016038499A JP6821922B2 (en) | 2016-03-01 | 2016-03-01 | A device for impregnating reinforcing fibers with resin and a method for impregnating reinforcing fibers with resin. |
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| JP2016038499A JP6821922B2 (en) | 2016-03-01 | 2016-03-01 | A device for impregnating reinforcing fibers with resin and a method for impregnating reinforcing fibers with resin. |
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| JP2017154330A JP2017154330A (en) | 2017-09-07 |
| JP6821922B2 true JP6821922B2 (en) | 2021-01-27 |
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| JP6947169B2 (en) | 2017-03-22 | 2021-10-13 | 東レ株式会社 | Manufacturing method of prepreg and manufacturing method of fiber reinforced composite material |
| KR102312952B1 (en) | 2017-03-22 | 2021-10-13 | 도레이 카부시키가이샤 | Method for manufacturing prepreg and method for manufacturing fiber-reinforced composite material |
| ES2909740T3 (en) | 2017-03-23 | 2022-05-10 | Toray Industries | Production method and coating device for the sheet-like reinforcing fiber bundle impregnated with coating liquid and an integrated sheet-like object |
| JP6544471B1 (en) * | 2018-03-12 | 2019-07-17 | 株式会社アドウェルズ | Impregnation apparatus, impregnation method and processing apparatus |
| ES2914513T3 (en) | 2018-06-05 | 2022-06-13 | Toray Industries | Fiber-reinforced fabric impregnated with coating liquid, integrated object in the form of a sheet, prepreg, prepreg tape and method for the manufacture of fiber-reinforced composite material |
| WO2020031766A1 (en) | 2018-08-09 | 2020-02-13 | 東レ株式会社 | Method for manufacturing prepreg, coating device, and apparatus for manufacturing prepreg |
| US20210213690A1 (en) * | 2018-08-22 | 2021-07-15 | Toray Industries, Inc. | Method of producing thermoplastic resin-impregnated sheet-shaped reinforcing fiber bundle |
| EP3842203B1 (en) | 2018-08-22 | 2024-02-14 | Toray Industries, Inc. | Production method for prepreg, prepreg tape, and fiber reinforced composite material, and coating device |
| WO2020040154A1 (en) | 2018-08-22 | 2020-02-27 | 東レ株式会社 | Production method for prepreg, prepreg tape, and fiber reinforced composite material, and prepreg production device |
| WO2020040153A1 (en) | 2018-08-22 | 2020-02-27 | 東レ株式会社 | Prepreg manufacturing method and manufacturing apparatus |
| CN113334627A (en) * | 2021-06-23 | 2021-09-03 | 四川兴宇航科技有限公司 | Continuous carbon fiber reinforced PEKK prepreg production process and equipment |
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