JP2956472B2 - Apparatus and method for molding fiber-reinforced plastic pipe - Google Patents
Apparatus and method for molding fiber-reinforced plastic pipeInfo
- Publication number
- JP2956472B2 JP2956472B2 JP6054375A JP5437594A JP2956472B2 JP 2956472 B2 JP2956472 B2 JP 2956472B2 JP 6054375 A JP6054375 A JP 6054375A JP 5437594 A JP5437594 A JP 5437594A JP 2956472 B2 JP2956472 B2 JP 2956472B2
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- cylindrical form
- fiber
- material supply
- molding
- 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
Links
- 238000000034 method Methods 0.000 title claims description 53
- 238000000465 moulding Methods 0.000 title claims description 50
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title claims description 22
- 239000011151 fibre-reinforced plastic Substances 0.000 title claims description 22
- 239000000463 material Substances 0.000 claims description 61
- 239000011342 resin composition Substances 0.000 claims description 52
- 239000012783 reinforcing fiber Substances 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 6
- 238000001879 gelation Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 239000012778 molding material Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 8
- 229920006337 unsaturated polyester resin Polymers 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Moulding By Coating Moulds (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、繊維強化プラスチック
ス管(以下FRP管という)の成形装置及び方法に関
し、特に開口部を有する大口径のFRP管の成形に好適
な成形装置及び方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for forming a fiber reinforced plastic pipe (hereinafter referred to as FRP pipe), and more particularly to a molding apparatus and a method suitable for forming a large diameter FRP pipe having an opening. It is.
【0002】[0002]
【従来の技術】従来のFRP管の成形方法には、筒状型
枠の外側に成形するフィラメントワインディング法(F
W法)と、これとは逆に型枠の内側で成形する遠心力を
利用した遠心成形法、更に遠心成形法より低速で型枠を
回転させる低速回転成形法が知られている。FW法は古
くから広範囲に採用されている方法で、強化繊維を予め
樹脂に含浸させ、回転する型枠の外側に、連続繊維の強
化繊維を張力をかけながら巻き付け硬化させる方法であ
るが、強化繊維を円周方向に巻き付けるため、成形品の
軸方向と円周方向で強度差が生じ、また型枠の外側に巻
き付けるため、成形品の外側表面の仕上がり外観が悪い
などの欠点を有する。2. Description of the Related Art A conventional FRP tube is formed by a filament winding method (F.R.
W method), and conversely, a centrifugal molding method using centrifugal force for molding inside the mold, and a low-speed rotation molding method in which the mold is rotated at a lower speed than the centrifugal molding method are known. The FW method is a method that has been widely used since ancient times, in which a reinforcing fiber is impregnated in a resin in advance, and a continuous fiber reinforcing fiber is wound and hardened while applying tension to the outside of a rotating mold. Since the fiber is wound in the circumferential direction, there is a difference in strength between the axial direction and the circumferential direction of the molded product, and the wound around the outside of the mold, which has a drawback such as poor finished appearance of the outer surface of the molded product.
【0003】また、遠心成形法は、一般に重力の約4倍
以上の遠心力が生じる高速回転で型枠を回転させなが
ら、切断した強化繊維と樹脂とを均一に混合して型枠の
内面に供給し硬化させる方法である。この成形法は型枠
の回転により生ずる遠心力によって含浸脱泡をするた
め、成形品はボイドが少なく、外観も美麗であるが、型
枠を高速回転させるため、多大なエネルギーを必要と
し、しかも型枠自体の精度、強度も高くしなければなら
ず、更に型枠の径が大きくなると、重量もコストも大幅
に増加する等の欠点を有している。また成形中に強化繊
維が円周方向に並んでしまい、FW法と同様に、成形品
の軸方向と円周方向で機械的な強度差を生じやすい。[0003] In the centrifugal molding method, the reinforced fiber and the resin that have been cut are mixed uniformly while rotating the mold at a high speed at which a centrifugal force of about four times or more of gravity is generated. It is a method of supplying and curing. This molding method is impregnated and defoamed by centrifugal force generated by the rotation of the mold, so the molded product has few voids and its appearance is beautiful, but it requires a lot of energy to rotate the mold at high speed, and The accuracy and strength of the mold itself must be increased, and the larger the diameter of the mold, the more the weight and cost are disadvantageously increased. In addition, the reinforcing fibers are arranged in the circumferential direction during the molding, and a mechanical strength difference is likely to occur in the axial direction and the circumferential direction of the molded product as in the FW method.
【0004】遠心成形法のかかる欠点を改良するため
に、例えば特公平3−17664号のように、型枠を遠
心成形のときより低い速度で回転させながら、型枠の内
側に成形材料を供給し、含浸脱泡は遠心力ではなく、円
形状ローラの自重または押しつけ圧で行う低速回転成形
法がある。しかしながら低速回転成形法に於いても、低
速回転ではあるが連続回転であるため、遠心成形法と同
様に強化繊維が円周方向に並びやすく、機械的強度にお
いて周方向と軸方向に差を生じる。In order to improve such disadvantages of the centrifugal molding method, for example, as in Japanese Patent Publication No. 3-17664, the molding material is supplied inside the mold while rotating the mold at a lower speed than in centrifugal molding. However, there is a low-speed rotation molding method in which the impregnation defoaming is performed not by centrifugal force but by the weight of the circular roller or the pressing pressure. However, even in the low-speed rotation molding method, since the rotation is low-speed rotation but continuous rotation, the reinforcing fibers are easily arranged in the circumferential direction similarly to the centrifugal molding method, and there is a difference in mechanical strength between the circumferential direction and the axial direction. .
【0005】またこれらFW法、遠心成形法、低速回転
成形法に共通の致命的欠陥として、大型浄化槽など大口
径の管体を成形する場合、管体の開口部(マンホール
部)で成形材料の供給を避けて成形を行うことが困難で
ある。遠心成形法及び低速回転成形法は型枠が連続回転
であること、さらにFW法は強化繊維を連続繊維で巻き
付けることのためである。遠心成形法及び低速回転成形
法では、型枠が連続回転しているため、材料供給装置を
停止しても、材料供給装置の停止と、実際の型枠内面に
おける材料供給の停止位置には必ずずれがあり、型枠の
供給不要な部分に正確に材料供給を避けることが不可能
である。従来はそのため開口部も一体で成形を行ってお
いて、成形後にロボットや管体加工機などで、開口部の
切断、トリミングを行う必要があった。これは、かなり
の手間と時間を要しコスト上昇の要因となる。A critical defect common to the FW method, the centrifugal molding method and the low-speed rotation molding method is that when molding a large-diameter tube such as a large septic tank, the molding material is formed at the opening (manhole) of the tube. It is difficult to perform molding while avoiding supply. The centrifugal molding method and the low-speed rotation molding method are for the continuous rotation of the mold, and the FW method is for winding the reinforcing fiber with the continuous fiber. In the centrifugal molding method and the low-speed rotation molding method, since the mold is continuously rotating, even if the material supply device is stopped, the material supply device must be stopped and the actual material supply stop position on the inner surface of the mold must be kept. There is a gap, and it is impossible to accurately avoid material supply to a part of the mold that does not need to be supplied. Conventionally, therefore, it has been necessary to form the opening integrally, and then cut and trim the opening using a robot or a pipe processing machine after molding. This requires a lot of time and effort and causes an increase in cost.
【0006】[0006]
【発明が解決しようとする課題】本発明の目的は、これ
ら従来の成形方法および成形品の欠点を除去し、軸方向
と円周方向との機械的強度差が少ない成形品が得られ、
更に成形品の開口部などの不必要な部分への材料供給を
一時的に止めることを可能とする繊維強化プラスチック
ス管の成形装置およびその方法を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of these conventional molding methods and molded articles, and to provide molded articles having a small difference in mechanical strength between the axial direction and the circumferential direction.
It is another object of the present invention to provide an apparatus and a method for forming a fiber reinforced plastic tube which can temporarily stop material supply to an unnecessary portion such as an opening of a molded product.
【0007】[0007]
【課題を解決するための手段】本発明者は上記課題を解
決すべく鋭意検討を重ねた結果、成形品の軸方向と円周
方向の機械的強度差を少なくし、また開口部などの不必
要な部分への材料供給を一時的に止めるには、型枠を連
続回転せずに、回転軸方向に成形材料を供給すればよい
ことを見出だし本発明を完成するに至った。As a result of intensive studies to solve the above-mentioned problems, the present inventor has reduced the difference in mechanical strength between the axial direction and the circumferential direction of the molded product, and has reduced the size of the opening. It has been found that it is only necessary to supply the molding material in the direction of the rotation axis without continuously rotating the mold in order to temporarily stop the supply of the material to the necessary portions, and the present invention has been completed.
【0008】即ち本発明の繊維強化プラスチックス管の
成形装置は、断続的に任意のピッチで回転する成形用筒
状型枠と、筒状型枠を載せる可動台車と、型枠内面に強
化繊維と樹脂組成物とを混合して供給する材料供給装置
と、供給された強化繊維と樹脂組成物の混合物を含浸、
脱泡する脱泡ローラとからなる繊維強化プラスチックス
管の成形装置であって、該脱泡ローラは、筒状型枠内面
の回転軸方向に、材料供給装置の前後いずれかに配置す
ることを特徴とする。That is, the fiber reinforced plastic pipe forming apparatus of the present invention comprises a forming cylindrical form which rotates intermittently at an arbitrary pitch, a movable carriage on which the cylindrical form is mounted, and a reinforcing fiber on the inner surface of the form. And a material supply device for mixing and supplying the resin composition, and impregnated with the supplied mixture of the reinforcing fiber and the resin composition,
A defoaming roller for defoaming a fiber-reinforced plastic tube, the defoaming roller being disposed in front of or behind the material supply device in the direction of the rotation axis of the inner surface of the cylindrical form. Features.
【0009】また本発明の繊維強化プラスチックス管の
成形方法は断続的に任意のピッチで回転する成形用筒状
型枠の内面に、材料供給装置により強化繊維と樹脂組成
物を混合して供給し、該混合供給物を脱泡ローラにより
含浸脱泡する繊維強化プラスチックス管の成形方法であ
って、筒状型枠を、任意のピッチでの回転が停止の状態
で、回転軸方向へ移動させながら、強化繊維と樹脂組成
物とを、筒状型枠内面の回転軸方向に帯状に供給し、供
給物を含浸脱泡してから、該筒状型枠を任意のピッチで
回転移動させる一連の動作を繰り返して行うことを特徴
とする。Further, according to the method of molding a fiber-reinforced plastic tube of the present invention, a reinforcing fiber and a resin composition are mixed and supplied by a material supply device to an inner surface of a molding cylindrical form which rotates intermittently at an arbitrary pitch. and, molding method der fiber reinforced plastics pipe impregnating degassing the mixture feed by defoaming roller
It, the tubular formwork, rotated at any pitch is stopped
Then, while moving in the direction of the rotation axis, the reinforcing fiber and the resin composition are supplied in a belt shape in the direction of the rotation axis of the inner surface of the cylindrical form, and the supply is impregnated and defoamed. At any pitch
It is characterized in that a series of operations for rotating and moving is repeatedly performed.
【0010】前記材料供給装置と脱泡ローラを、筒状型
枠の回転軸方向に前後に移動可能とすることにより、筒
状型枠を回転軸方向へ移動させる代わりに、材料供給装
置を、筒状型枠の回転軸方向へ移動させることもでき
る。By allowing the material supply device and the defoaming roller to move back and forth in the direction of the rotation axis of the cylindrical form, instead of moving the cylindrical form in the direction of the rotation axis, the material supply device is It can also be moved in the direction of the rotation axis of the cylindrical form.
【0011】また樹脂組成物は、筒状型枠の内面に供給
する強化繊維と樹脂組成物の混合物が、筒状型枠の断続
的な任意のピッチでの回転移動により、筒状型枠内にお
ける混合物の供給位置より少なくとも筒状型枠が半回転
した位置で、ゲル化を始めるように調節されていること
が好ましい。In the resin composition, the mixture of the reinforcing fiber and the resin composition supplied to the inner surface of the cylindrical form is formed by intermittently connecting the cylindrical form.
It is preferable that the gelation is adjusted so as to start gelation at least at a position where the cylindrical form is rotated half a turn from the supply position of the mixture in the cylindrical form by a rotational movement at an arbitrary arbitrary pitch .
【0012】[0012]
【作用】本発明の繊維強化プラスチックス管の成形装置
においては、材料供給装置においては、材料供給装置と
脱泡ローラは、筒状型枠内面の回転軸方向に前後に配置
し、成形材料の供給は、筒状型枠内面の回転軸方向に前
後に配置し、成形材料の供給は、筒状型枠の移動あるい
は材料供給送致の移動によって、筒状型枠内面の回転軸
方向に沿って行われ、含浸脱泡は、その後を脱泡ローラ
により行うことで、型枠内面の回転軸方向へ帯状に成形
される。次に断続的に任意のピッチで回転可能な筒状型
枠を任意のピッチで回転させた後、同様の帯状の成形を
繰り返すことで繊維強化プラスッチクス管が成形され
る。[Action] In the molding apparatus of a fiber reinforced plastics pipe of the present invention is the material supply apparatus, material supply device and the defoaming rollers arranged back and forth in the rotation axis direction of the cylindrical mold inner surface, formed form material supply is positioned around the rotation axis direction of the cylindrical mold inner surface, the supply of the formed shape material, by the movement of the moving or material supply up Reel tubular formwork, the rotation axis direction of the cylindrical mold inner surface Then, the impregnation and defoaming are performed by a defoaming roller, so that the inner surface of the form is formed in a belt shape in the direction of the rotation axis. After then intermittently rotates the rotatable tubular formwork with any pitch in any pitch fiber reinforced Purasutchikusu pipe is molded by repeating the molding of the same strip.
【0013】本発明の繊維強化プラスチックス管の成形
方法における筒状型枠の回転は、従来の遠心成形法や低
速回転法のような連続回転ではなく、任意のピッチでの
不連続回転である。従来の連続回転では、切断した強化
繊維と樹脂組成物の成形材料を、回転状態にある型枠の
内面に供給すると、供給直後は強化繊維の向きはランダ
ムであるが、その後の型枠の連続回転による遠心力で、
強化繊維の向きは型枠の円周方向に揃ってくる。本発明
の成形方法は不連続回転であり、遠心力が働かないた
め、強化繊維の向きが型枠の円周方向に揃うことはな
い。従って成形品の軸方向と円周方向とで機械的強度差
はなく、強度バランスに優れた成形品が得られる。The rotation of the cylindrical form in the method of molding a fiber-reinforced plastic tube of the present invention is not continuous rotation as in the conventional centrifugal molding method or low-speed rotation method, but is discontinuous rotation at an arbitrary pitch. . In the conventional continuous rotation, when the cut reinforcing fiber and the molding material of the resin composition are supplied to the inner surface of the mold in a rotating state, the direction of the reinforcing fiber is random immediately after the supply, but the subsequent continuation of the mold is performed. By centrifugal force by rotation,
The direction of the reinforcing fibers is aligned in the circumferential direction of the mold. Since the molding method of the present invention is a discontinuous rotation and no centrifugal force acts, the direction of the reinforcing fibers does not align in the circumferential direction of the mold. Therefore, there is no difference in mechanical strength between the axial direction and the circumferential direction of the molded product, and a molded product excellent in strength balance can be obtained.
【0014】また本発明の成形方法では、従来のように
型枠が連続回転状態での成形材料の供給ではなく、型枠
が回転していない状態での成形材料の供給であるので、
開口部のような一時的に供給停止が必要な箇所には、材
料供給装置の作動停止により、正確に容易に、供給を避
けることができる。Further, in the molding method of the present invention, the molding material is supplied in a state where the mold is not rotating, instead of a conventional case where the molding material is supplied in a state where the mold is continuously rotated.
In a place where supply is temporarily stopped, such as an opening, supply can be accurately and easily avoided by stopping the operation of the material supply device.
【0015】[0015]
【実施例】本発明の装置の1実施例を図をもって具体的
に説明する。図1は、本発明の成形装置の部分断面正面
図を示し、図2は図1の側面図である。図1、図2にお
いて可動台車Bの上に載置させた筒状型枠Aの内部に、
強化繊維5と樹脂組成物15とを混合して供給する材料
供給装置Cと、材料供給装置Cに隣接して、供給された
混合物において樹脂組成物16を強化繊維5に含浸脱泡
させる脱泡ローラDを配置し、材料供給装置Cと脱泡ロ
ーラDとは、筒状型枠A内面の回転軸方向sに、前後に
配置する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the apparatus of the present invention will be specifically described with reference to the drawings. FIG. 1 is a partial cross-sectional front view of the molding apparatus of the present invention, and FIG. 2 is a side view of FIG. In FIG. 1 and FIG. 2, the inside of the cylindrical form A placed on the movable carriage B
A material supply device C that supplies the reinforcing fiber 5 and the resin composition 15 in a mixed manner, and a defoaming process in which the resin composition 16 is impregnated and defoamed into the reinforcing fiber 5 in the supplied mixture adjacent to the material supply device C. The roller D is disposed, and the material supply device C and the defoaming roller D are disposed before and after in the rotation axis direction s of the inner surface of the cylindrical form A.
【0016】筒状型枠Aは、複数個の回転駆動ローラー
1を介して任意のピッチで回転可能に支持されており、
その回転は型枠回転用モータ2により前記ローラー1を
介して行われる。回転のピッチは、成形品の厚み、大き
さ、成形材料の供給速度などを考慮して決められる。所
定のピッチで回転させ、停止させた後は、筒状型枠Aを
固定されるが、さらにまた、その位置から任意のピッチ
で回転させるように断続的な回転が可能である。また筒
状の型枠Aを載置する可動台車Bは、台車移動用モータ
3により、レール4に沿って、筒状型枠Aの回転軸方向
sに前後自在に移動する。The cylindrical form A is rotatably supported at an arbitrary pitch via a plurality of rotary drive rollers 1.
The rotation is performed by the mold rotating motor 2 via the rollers 1. The rotation pitch is determined in consideration of the thickness and size of the molded product, the supply speed of the molding material, and the like. After being rotated at a predetermined pitch and stopped, the tubular form A is fixed, but intermittent rotation is also possible so as to rotate at an arbitrary pitch from that position. Further, the movable carriage B on which the tubular form A is placed is freely moved back and forth along the rail 4 by the carriage moving motor 3 in the rotation axis direction s of the tubular form A.
【0017】本発明の筒状型枠Aは、公知のものが使用
できる。その断面形状は、円、楕円、長円、三角形以上
の多角形など、およびこれらの部分的に欠けたものであ
ればよい。筒状型枠Aの材質は金属、木、プラスチック
ス、石などであるが、とりわけ金属は加工性、耐久性が
良好なため、好ましく用いることができる。また、その
大きさは特に制限はないが、型枠内面で成形すること、
成形品の運搬を考慮して通常直径1〜3m、長さ1〜2
0m程度を用いる。As the cylindrical form A of the present invention, a known form can be used. The cross-sectional shape may be a circle, an ellipse, an ellipse, a polygon having a shape of a triangle or more, or any shape partially missing these. The material of the cylindrical form A is metal, wood, plastics, stone, or the like. Particularly, metal is preferably used because it has good workability and durability. The size is not particularly limited, but molded on the inner surface of the mold,
Usually 1 to 3 m in diameter and 1 to 2 length in consideration of transportation of molded products
Use about 0 m.
【0018】本発明の材料供給装置Cの一例を図3に示
す。強化繊維5と樹脂組成物15とを混合して型枠内面
に供給する材料供給装置Cは、連続繊維状の強化繊維5
を切断するための刃付きローラ6と受けローラ7を有
し、更に樹脂組成物を噴霧して吐出するための樹脂組成
物供給ノズル8を有する。成形材料の型枠内面への供給
は、まず連続繊維の強化繊維5が、リング状のガイド1
0を通過し、次に材料供給装置Cの刃付きローラ6と受
けローラ7の間に供給され、刃付きローラ6を駆動する
ことにより所定の長さに切断されて排出される。一方不
飽和ポリエステル樹脂が樹脂タンク10から、硬化剤が
硬化剤タンク11からそれぞれ材料供給装置Cに導か
れ、樹脂と硬化剤が混合され樹脂組成物15として樹脂
組成物供給ノズル8から、微粒子状となって吐出され
る。吐出した樹脂組成物15が、その吐出方向と強化繊
維5の排出方向が重なる点で強化繊維5と混合し、型枠
内面への供給がなされる。FIG. 3 shows an example of the material supply device C of the present invention. The material supply device C that mixes the reinforcing fiber 5 and the resin composition 15 and supplies the mixed fiber to the inner surface of the formwork includes a continuous fibrous reinforcing fiber 5
And a receiving roller 7 for cutting the resin composition, and a resin composition supply nozzle 8 for spraying and discharging the resin composition. In order to supply the molding material to the inner surface of the mold, the reinforcing fibers 5 of continuous fibers are first supplied to the ring-shaped guide 1.
0, is then supplied between the bladed roller 6 and the receiving roller 7 of the material supply device C, and is cut into a predetermined length by driving the bladed roller 6 and discharged. On the other hand, the unsaturated polyester resin is guided from the resin tank 10 and the curing agent is guided from the curing agent tank 11 to the material supply device C, and the resin and the curing agent are mixed to form the resin composition 15 from the resin composition supply nozzle 8 into fine particles. And discharged. The discharged resin composition 15 is mixed with the reinforcing fibers 5 at a point where the discharging direction and the discharging direction of the reinforcing fibers 5 overlap, and the resin composition 15 is supplied to the inner surface of the mold.
【0019】筒状型枠Aを回転軸方向sへ移動させて、
成形材料の型枠内面への回転軸方向へ,帯状に供給する
代わりに、材料供給装置Cを筒状型枠Aの回転軸方向s
に前後自在に移動可能にして、筒状型枠Aを回転軸方向
sへ移動させるようにすることもできる。The cylindrical form A is moved in the rotation axis direction s,
Instead of supplying the molding material in the form of a belt in the direction of the rotation axis to the inner surface of the form, the material supply device C is rotated in the direction of the rotation axis s of the cylindrical form A.
The cylindrical form A can be moved in the rotational axis direction s.
【0020】材料供給装置Cは、材料供給の停止、作動
が遠隔操作できるスプレーアップ用チョッパーガンであ
ればよいが、自動制御ガンとすることもできる。作動、
停止の位置、時刻が予め設定できる自動制御ガンは、時
定数が短く、開口部などにおける作動、停止が短時間で
設定できるので、切断された強化繊維5と樹脂組成物1
5の供給動作が正確に制御できるのでより好ましい。The material supply device C may be any spray-up chopper gun capable of remotely controlling the stop and operation of the material supply, but may be an automatic control gun. Actuation,
The automatic control gun in which the stop position and the stop time can be set in advance has a short time constant, and the operation and stop at the opening and the like can be set in a short time, so that the cut reinforcing fiber 5 and the resin composition 1
5 is more preferable because the supply operation can be accurately controlled.
【0021】本発明の脱泡ローラDは、材料供給装置C
に対して、筒状型枠A内面の回転軸方向に前後に配置す
る。脱泡ローラDは、材料供給装置Cより供給された切
断された強化繊維5と樹脂組成物15の含浸脱泡を行う
ものであり、脱泡は筒状型枠Aの内面に接触して脱泡ロ
ーラDが回転しながら行われる。脱泡ローラDは、図3
に示すように、支持棒14によって回転板13に自由回
転できるように支持される。回転板13は、水平方向に
回転可能な回転用バー12の回転により、回転用バー1
2とともに、水平方向に回転する。よって回転用バー1
2が水平方向に半回転することで、支持棒14により支
持されている脱泡ローラDも位置を変え、その位置は、
回転用バー12を回転軸として点対称の位置に移る。材
料供給装置Cは、回転板13により支持されておらず、
その位置は固定である。従って、図3において強化繊維
5と樹脂組成物15の供給方向は、回転用バー12の水
平方向における半回転により、tで示す矢印と逆向きの
回転軸方向に供給方向を変えることができる。The defoaming roller D of the present invention comprises a material feeding device C
In contrast, the cylindrical form A is disposed on the inner surface of the cylindrical form A in the direction of the rotation axis. The defoaming roller D is a device for impregnating and defoaming the cut reinforcing fibers 5 and the resin composition 15 supplied from the material supply device C. The defoaming is performed by contacting the inner surface of the cylindrical form A and defoaming. This is performed while the foam roller D rotates. The defoaming roller D is shown in FIG.
As shown in FIG. 7, the support rod 14 supports the rotary plate 13 so as to freely rotate. The rotating plate 13 rotates the rotating bar 1 by rotating the rotating bar 12 rotatable in the horizontal direction.
2 and rotate in the horizontal direction. Therefore, the rotating bar 1
2 rotates half a turn in the horizontal direction, the defoaming roller D supported by the support rod 14 also changes its position, and its position is
Move to a point-symmetric position with the rotation bar 12 as a rotation axis. The material supply device C is not supported by the rotating plate 13,
Its position is fixed. Therefore, in FIG. 3, the supply direction of the reinforcing fibers 5 and the resin composition 15 can be changed by the half rotation of the rotation bar 12 in the horizontal direction to the rotation axis direction opposite to the arrow indicated by t.
【0022】脱泡ローラDの形状は、円柱状または図4
に一例を示すような円柱の中央部を膨らましたものが用
いられる。円柱の中央部を膨らまして、膨らました部分
の曲率が筒状型枠Aの曲率と似せたものが、含浸及び脱
泡には都合がよいのでより好ましく使用できる。脱泡ロ
ーラDは1個ではなく複数個設けてもよい。脱泡ローラ
Dの表面は溝があっても、なくてもよいが、あった方が
好ましい。また刷毛用のブラシを周囲に付けてもよい。
本発明の脱泡ローラDの材質は、脱泡ローラにより押圧
力が生じ得るものであればよく、例えば鉄、アルミニウ
ム、ステンレス、銅、木、プラスチックなどの公知のも
のが挙げられ、これらを組み合わせたものであっても差
支えない。The shape of the defoaming roller D is cylindrical or FIG.
As shown in Fig. 2, a cylinder having a bulged central portion is used. It is more preferable to use a cylinder in which the center portion is expanded and the curvature of the expanded portion is similar to the curvature of the cylindrical form A because it is convenient for impregnation and defoaming. A plurality of defoaming rollers D may be provided instead of one. The surface of the defoaming roller D may or may not have a groove, but is preferably provided. A brush for brushing may be attached to the periphery.
The material of the defoaming roller D of the present invention is not particularly limited as long as a pressing force can be generated by the defoaming roller, and examples thereof include known materials such as iron, aluminum, stainless steel, copper, wood, and plastic. Can be used.
【0023】次に、本発明の装置により繊維強化プラス
チックス管を成形する方法の一実施例を図5により説明
する。 (1)まず図5(a)において、筒状型枠Aを矢印のよ
うに筒状型枠Aの内部に材料供給装置Cと脱泡ローラD
を挿入し、筒状型枠Aの一端uに材料供給装置Cと脱泡
ローラDを配置する。Next, one embodiment of a method of forming a fiber reinforced plastic pipe by the apparatus of the present invention will be described with reference to FIG. (1) First, in FIG. 5 (a), the cylindrical form A is placed inside the cylindrical form A as indicated by an arrow in the material supply device C and the defoaming roller D.
Is inserted, and the material supply device C and the defoaming roller D are arranged at one end u of the cylindrical form A.
【0024】(2)次に図5(b)のように、筒状型枠
Aを回転軸方向に沿って移動させながら、強化繊維5を
切断し、切断した強化繊維5と樹脂組成物15とを混合
して型枠内面の下部に供給する。供給した強化繊維5と
樹脂組成物15は脱泡ローラDにより含浸脱泡を行う。
このとき強化繊維5と樹脂組成物15は、筒状型枠Aの
一端uから他端vの方向に供給される。(2) Next, as shown in FIG. 5 (b), the reinforcing fiber 5 is cut while moving the cylindrical form A along the rotation axis direction, and the cut reinforcing fiber 5 and the resin composition 15 are cut. And supply it to the lower part of the inner surface of the mold. The supplied reinforcing fiber 5 and the resin composition 15 are impregnated and defoamed by the defoaming roller D.
At this time, the reinforcing fibers 5 and the resin composition 15 are supplied in a direction from one end u to the other end v of the cylindrical form A.
【0025】(3)図5(c)のように,材料供給装置
Cと脱泡ローラDが筒状型枠Aの他端vに到達したら、
筒状型枠Aの回転軸方向への移動を停止する。(3) When the material supply device C and the defoaming roller D reach the other end v of the cylindrical form A as shown in FIG.
The movement of the cylindrical form A in the rotation axis direction is stopped.
【0026】(4)筒状型枠Aを,図5(g)のように
所定の角度で回転させて図5(h)としながら、図5
(d)のように脱泡ローラDと材料供給装置Cを、水平
方向で半回転させて、脱泡ローラDと材料供給装置Cの
位置を交換する。(4) The cylindrical form A is rotated at a predetermined angle as shown in FIG.
As shown in (d), the positions of the defoaming roller D and the material supply device C are exchanged by half-turning the defoaming roller D and the material supply device C in the horizontal direction.
【0027】(5)図5(e)のように、筒状型枠Aを
回転軸方向へ、前記方向とは逆に移動させながら、強化
繊維5と樹脂組成物を型枠内面の下部に供給し、供給し
た強化繊維5と樹脂組成物は脱泡ローラDにより含浸脱
泡をする。強化繊維5と樹脂組成物は、型枠内面の下部
にvからuの方向に供給される。(5) As shown in FIG. 5 (e), the reinforcing fiber 5 and the resin composition are moved to the lower part of the inner surface of the mold while moving the cylindrical mold A in the direction of the rotation axis and in the opposite direction. The supplied reinforcing fiber 5 and the supplied resin composition are impregnated and defoamed by a defoaming roller D. The reinforcing fibers 5 and the resin composition are supplied to the lower part of the inner surface of the mold in the direction from v to u.
【0028】(6)図5(f)のように材料供給装置C
と脱泡ローラDが筒状型枠Aの他端に到達したら、筒状
型枠Aの回転軸軸方向への移動を停止する。供給した強
化繊維5と樹脂組成物は、筒状型枠Aの断面で見ると図
5(i)のようになる。(6) The material supply device C as shown in FIG.
When the defoaming roller D reaches the other end of the cylindrical form A, the movement of the cylindrical form A in the rotation axis direction is stopped. The supplied reinforcing fiber 5 and resin composition are as shown in FIG. 5 (i) when viewed in a cross section of the cylindrical form A.
【0029】(7)以後、(4)〜(6)と同様の動作
を繰り返し、型枠内面全面に亘って、強化繊維5と樹脂
組成物の供給と含浸脱泡を行い、繊維強化プラスチック
管の成形をする。(7) Thereafter, the same operations as in (4) to (6) are repeated, and the reinforcing fiber 5 and the resin composition are supplied and impregnated and defoamed over the entire inner surface of the mold, and the fiber reinforced plastic pipe is formed. Molding.
【0030】上記実施例では筒状の筒状型枠Aを回転軸
方向に移動させ、材料供給装置Cは固定とすることで、
強化繊維5と樹脂組成物15を、筒状型枠Aの回転軸方
向に供給したが、筒状型枠Aを固定しておき、材料供給
装置Cを移動させることで供給するようにしてもよい。
また上記実施例では強化繊維5と樹脂組成物15は、筒
状の型枠Aの一端と他端との往復により供給するが、型
枠Aの一端から他端への一方向の供給でもよい。In the above embodiment, the cylindrical cylindrical form A is moved in the direction of the rotation axis, and the material supply device C is fixed.
Although the reinforcing fibers 5 and the resin composition 15 are supplied in the rotation axis direction of the cylindrical form A, the cylindrical form A may be fixed and the material supply device C may be moved to supply the reinforcing fiber 5 and the resin composition 15. Good.
Further, in the above embodiment, the reinforcing fibers 5 and the resin composition 15 are supplied by reciprocation between one end and the other end of the cylindrical form A, but may be supplied in one direction from one end to the other end of the form A. .
【0031】また本発明の成形方法では、樹脂組成物1
5の特性は、格別の制限はないが、筒状型枠Aの内面の
底部に供給した強化繊維5と樹脂組成物15の混合物
が、筒状型枠Aの断続回転により、上部位置に達したと
きに、筒状型枠Aの内面からの落下、はがれを防ぐため
に、必要であれば、強化繊維5と樹脂組成物15の混合
物が供給された位置から、少なくとも半回転した位置
で、ゲル化を始めるようにした樹脂組成物15とするこ
ともできる。例えば硬化剤、硬化促進剤などの樹脂組成
物中の濃度を変えることによって得られる。In the molding method of the present invention, the resin composition 1
Although there is no particular limitation on the characteristics of 5, the mixture of the reinforcing fibers 5 and the resin composition 15 supplied to the bottom of the inner surface of the cylindrical form A reaches the upper position by the intermittent rotation of the cylindrical form A. If necessary, in order to prevent falling from the inner surface of the cylindrical form A and peeling, if necessary, at least a half-turn from the position where the mixture of the reinforcing fiber 5 and the resin composition 15 was supplied, the gel It is also possible to obtain the resin composition 15 which is set to start the conversion. For example, it can be obtained by changing the concentration of a curing agent, a curing accelerator and the like in the resin composition.
【0032】また樹脂組成物15の粘度は特に制限はな
いが、混合物の型枠内面から落下、はがれを防ぐため、
樹脂組成物15の粘度を高くしてもよい。その場合、前
記樹脂組成物15の粘度は25℃において5〜30ポイ
ズとすることが好ましい。より好ましくは15〜20ポ
イズである。The viscosity of the resin composition 15 is not particularly limited. However, in order to prevent the mixture from dropping and peeling from the inner surface of the mold,
The viscosity of the resin composition 15 may be increased. In that case, the viscosity of the resin composition 15 is preferably 5 to 30 poise at 25 ° C. More preferably, it is 15 to 20 poise.
【0033】本発明で用いられる強化繊維5は任意であ
り、その強化繊維5の種類としてはガラス繊維、炭素繊
維、アラミド繊維など公知のものを挙げることができる
が、特に連続したガラス繊維であるガラスロービングが
好ましい。また本発明における強化繊維5の成形物中の
含有率は、通常、15〜60重量%、好ましくは20〜
50重量%となる量が適当である。15重量%未満では
成形品の機械的強度が不足したり、逆に60重量%を超
すと、脱泡ローラDによる含浸、脱泡が困難となる場合
があるからである。The reinforcing fiber 5 used in the present invention is optional. Examples of the type of the reinforcing fiber 5 include known ones such as glass fiber, carbon fiber, and aramid fiber, and particularly, continuous glass fiber. Glass roving is preferred. The content of the reinforcing fibers 5 in the molded product of the present invention is usually 15 to 60% by weight, preferably 20 to 60% by weight.
A suitable amount is 50% by weight. If the amount is less than 15% by weight, the mechanical strength of the molded article is insufficient, and if it exceeds 60% by weight, impregnation and defoaming by the defoaming roller D may be difficult.
【0034】本発明で用いられる樹脂組成物15は、熱
硬化性樹脂、硬化剤からなり、更に必要により硬化促進
剤、及び充填剤などを含んでもよい。熱硬化性樹脂の種
類としては、任意であり、不飽和ポリエステル樹脂、エ
ポキシ樹脂、フェノール樹脂、ビニルエステル樹脂など
公知の熱硬化性樹脂が挙げられるが、特に不飽和ポリエ
ステル樹脂が好ましい。不飽和ポリエステル樹脂を用い
た場合には、硬化剤として過酸化物、硬化促進剤として
は金属塩、アミンなどが用いられる。また硬化剤と硬化
促進剤は型枠内面に樹脂組成物15とは別々に又は予め
混合して供給してもよい。充填剤としては炭酸カルシウ
ム、タルク、水酸化アルミニウム、クレー、ガラスバル
ーン、ミルドファイバーなど公知のものを使用すること
ができ、予め樹脂に混合しておいてもよい。The resin composition 15 used in the present invention comprises a thermosetting resin and a curing agent, and may further contain, if necessary, a curing accelerator and a filler. The type of the thermosetting resin is arbitrary, and includes known thermosetting resins such as an unsaturated polyester resin, an epoxy resin, a phenol resin, and a vinyl ester resin, and an unsaturated polyester resin is particularly preferable. When an unsaturated polyester resin is used, a peroxide is used as a curing agent, and a metal salt, an amine or the like is used as a curing accelerator. Further, the curing agent and the curing accelerator may be supplied to the inner surface of the mold separately from or in advance of mixing with the resin composition 15. Known fillers such as calcium carbonate, talc, aluminum hydroxide, clay, glass balloon, and milled fiber can be used as the filler, and may be mixed in advance with the resin.
【0035】(実験例)図1に示す装置を用い、図5に
示す工程により繊維強化プラスチック管の成形を行った
実験例を示す。 (1)成形装置 型枠の形状:外径2.5m、長さ11mの円筒 供給装置:スプレーアップ用自動制御ガンを使用(時定
数3秒で材料のスタート、ストップが制御できる。) 脱泡ローラ:図4に示すような最大直径が20cm、最
小直径が15cm、長さが50cm、重量8kgの中央
部が膨らみを持つ円柱状(Experimental Example) An experimental example in which a fiber-reinforced plastic pipe was molded by the process shown in FIG. 5 using the apparatus shown in FIG. (1) Forming device Form of mold: 2.5 m outside diameter, 11 m long cylinder Feeding device: Uses an automatic control gun for spray up (start and stop of material can be controlled with a time constant of 3 seconds). Roller: As shown in FIG. 4, a cylindrical shape having a maximum diameter of 20 cm, a minimum diameter of 15 cm, a length of 50 cm, and a weight of 8 kg with a bulging central portion.
【0036】(2)使用材料 強化繊維:ガラス繊維(RS240L−954AN、日
東紡績(株)製)、切断長25mm 樹脂組成物:下記から構成される組成物(ゲル化時間、
20分) 不飽和ポリエステル樹脂 エスターRK−1000C、三井東圧化学(株)製 炭酸カルシウム NS−100#、日東粉化工業(株)製、不飽和ポリテ
ル樹脂に対して50wt% 硬化剤 パーメックN、日本油脂(株)製、不飽和ポリエステル
樹脂に対し1.25wt%(2) Materials used Reinforcing fiber: glass fiber (RS240L-954AN, manufactured by Nitto Boseki Co., Ltd.), cut length: 25 mm Resin composition: composition comprising the following (gelling time,
20 minutes) Unsaturated polyester resin Ester RK-1000C, Calcium carbonate NS-100 # manufactured by Mitsui Toatsu Chemicals, Inc., manufactured by Nitto Powder Chemical Co., Ltd., 50 wt% of unsaturated polyter resin, curing agent Permec N, 1.25 wt% based on unsaturated polyester resin manufactured by NOF Corporation
【0037】(3)成形条件 ガラス繊維切断速度:5.7kg/分 樹脂組成物吐出速度:13.2kg/分 材料供給:材料は供給幅、30cmで型枠の回転軸に沿
って供給し、往復の供給を1ピッチの成形とした。 型枠の回転軸方向への移動速度:10m/分 型枠の回転:型枠は材料供給1ピッチごとに回転させ
た。回転ピッチは円周面で210mm 成形時間:1時間 成形品の形状:開口部(面積3.1m2 )を有する外径
2.5m、長さ8m、厚さ8mmの円筒 成形品のガラス含有率:28〜32wt%(3) Molding conditions Glass fiber cutting speed: 5.7 kg / min Resin composition discharge speed: 13.2 kg / min Material supply: Material is supplied along a supply shaft of 30 cm along the rotating shaft of the mold. The reciprocating feed was formed with one pitch. Moving speed of the mold in the direction of the rotation axis: 10 m / min. Rotation of the mold: The mold was rotated every one pitch of material supply. The rotation pitch is 210 mm on the circumferential surface. Molding time: 1 hour Shape of molded product: cylindrical shape having an opening (area of 3.1 m 2 ), outer diameter 2.5 m, length 8 m, thickness 8 mm, glass content of molded product : 28-32 wt%
【0038】(4)上記条件により、材料供給は開口部
を避けて繊維強化プラスチック管を成形することがで
き、また供給材料の型枠からの落下などの成形不良を起
こすことなく成形することができた。また得られた成形
品から軸方向、円周方向の試験片を切り出し、強度を測
定した。その結果を表1に示す。(4) Under the above conditions, the material can be supplied to form the fiber reinforced plastic tube avoiding the opening, and the molding can be performed without causing molding defects such as dropping of the supply material from the mold. did it. Further, test pieces in the axial direction and the circumferential direction were cut out from the obtained molded product, and the strength was measured. Table 1 shows the results.
【0039】(比較例)筒状型枠の形状、材料供給装
置、脱泡ローラ、強化繊維、樹脂組成物を実験例と同一
のものを使用し、筒状型枠を連続回転(12rpm)し
ながら、実験例と同じ繊維強化プラスチック管を、低速
回転成形法により成形した。この方法では成形不良を起
こすことはなかったが、材料供給で開口部を避けて成形
することはできなかった。得られた成形品は軸方向、円
周方向の試験片を切り出し、強度を測定した。その結果
を表1に示す。(Comparative Example) The shape of the cylindrical mold, the material supply device, the defoaming roller, the reinforcing fiber, and the resin composition were the same as those in the experimental example, and the cylindrical mold was continuously rotated (12 rpm). Meanwhile, the same fiber-reinforced plastic tube as in the experimental example was molded by a low-speed rotation molding method. This method did not cause molding failure, but it was not possible to form the material while avoiding the opening by supplying the material. From the obtained molded product, test pieces were cut out in the axial direction and the circumferential direction, and the strength was measured. Table 1 shows the results.
【0040】[0040]
【表1】 [Table 1]
【0041】[0041]
【発明の効果】本発明の装置及び方法を用いて成形した
繊維強化プラスチック管は、筒状の型枠の回転軸方向に
沿って吹き付けて成形するので、回転軸方向と円周方向
の強度差がない。また本発明の装置及び方法では、開口
部などの不必要な部分への材料供給が制御することがで
きるので、従来の成形法では必要であった後工程での開
口部の切断、トリミングを行う必要がほとんどなく、そ
れにより従来の成形法では実現できなかった材料費の大
幅な節約と廃材を最小限に抑えることが可能である。前
記実験例の繊維強化プラスチック管では従来の低速回転
成形法に対し、本発明の方法では約30%大幅に減少す
ることができた。The fiber reinforced plastic pipe formed by using the apparatus and method of the present invention is formed by spraying along the rotation axis direction of the cylindrical form, so that the difference in strength between the rotation axis direction and the circumferential direction is obtained. There is no. In the apparatus and method of the present invention, material supply to unnecessary parts such as openings can be controlled, so that cutting and trimming of openings in post-processes which are necessary in the conventional molding method are performed. There is little need, which allows for significant savings in material costs and minimization of waste material that could not be achieved with conventional molding methods. In the fiber reinforced plastic tube of the experimental example, the method of the present invention was able to significantly reduce by about 30% compared with the conventional low-speed rotation molding method.
【0042】[0042]
【図1】本発明の成形装置の1実施例を示す部分断面正
面図である。FIG. 1 is a partial sectional front view showing one embodiment of a molding apparatus of the present invention.
【図2】図1の側面図である。FIG. 2 is a side view of FIG.
【図3】材料供給装置と脱泡ローラの1実施例を示す斜
視図である。FIG. 3 is a perspective view showing one embodiment of a material supply device and a defoaming roller.
【図4】本発明に使用可能な脱泡ローラの別な実施例を
示す正面図である。FIG. 4 is a front view showing another embodiment of the defoaming roller usable in the present invention.
【図5】(a)〜(f)は本発明の成形方法の1実施例
を工程順に示し、(g)〜(i)はそのときの筒状型枠
の回転を説明する図である。FIGS. 5 (a) to 5 (f) show one embodiment of the molding method of the present invention in the order of steps, and FIGS. 5 (g) to 5 (i) are views for explaining the rotation of the cylindrical mold at that time.
A 筒状型枠 B 可動台車 C 材料供給装置 D 脱泡ローラ 1 回転駆動ローラ 2 型枠回転用モータ 3 台車移動用モータ 4 レール 5 強化繊維 6 刃付きローラ 7 受けローラ 8 樹脂組成物供給ノズル 9 ガイド 10 樹脂タンク 11 硬化剤タンク 12 回転用バー 13 回転板 14 支持棒 15 樹脂組成物 16 成形材料混合物 Reference Signs List A cylindrical form B movable carriage C material supply device D defoaming roller 1 rotation drive roller 2 form rotation motor 3 carriage moving motor 4 rail 5 reinforcing fiber 6 bladed roller 7 receiving roller 8 resin composition supply nozzle 9 Guide 10 Resin tank 11 Hardener tank 12 Rotating bar 13 Rotating plate 14 Support rod 15 Resin composition 16 Molding material mixture
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) B29C 70/00 - 70/88 B29D 23/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 6 , DB name) B29C 70/00-70/88 B29D 23/00
Claims (5)
筒状型枠(A)と、筒状型枠(A)を載せる可動台車
(B)と、型枠内面に強化繊維(5)と樹脂組成物維
(15)とを混合して供給する材料供給装置(C)と、
供給された強化繊維(5)と樹脂組成物(15)の混合
物を含浸、脱泡する脱泡ローラ(D)とからなる繊維強
化プラスチックス管の成形装置であって、該脱泡ローラ
(D)は、筒状型枠(A)内面の回転軸方向に、材料供
給装置(C)の前後いずれかに配置することを特徴とす
る繊維強化プラスチックス管の成形装置。1. A molding cylindrical form (A) intermittently rotating at an arbitrary pitch, a movable carriage (B) on which the cylindrical form (A) is placed, and a reinforcing fiber (5) on the inner surface of the form. A material supply device (C) for mixing and supplying the resin composition fiber (15) and
A defoaming roller (D) for impregnating and defoaming a mixture of a supplied reinforcing fiber (5) and a resin composition (15), comprising a defoaming roller (D). ) Is a fiber-reinforced plastic pipe forming apparatus, which is disposed in front of or behind a material supply device (C) in the rotation axis direction of the inner surface of the cylindrical formwork (A).
(D)は、筒状型枠(A)の回転軸方向に、前後に移動
可能とした請求項1に記載の繊維強化プラスチックス管
の成形装置。2. The fiber reinforced plastics according to claim 1, wherein the material supply device (C) and the defoaming roller (D) are movable back and forth in the rotation axis direction of the cylindrical formwork (A). Tube forming equipment.
筒状型枠(A)の内面に、材料供給装置(C)により強
化繊維(5)と樹脂組成物(15)を混合して供給し、
該混合供給物を脱泡ローラ(D)により含浸脱泡する繊
維強化プラスチックス管の成形方法であって、筒状型枠
(A)を、任意のピッチでの回転が停止の状態で、回転
軸方向へ移動させながら、強化繊維(5)と樹脂組成物
(15)とを、筒状型枠(A)内面の回転軸方向に帯状
に供給し、供給物を含浸脱泡してから、該筒状型枠
(A)を任意のピッチで回転させる一連の動作を繰り返
して行うことを特徴とする繊維強化プラスチックス管の
成形方法。3. A reinforcing fiber (5) and a resin composition (15) are mixed by means of a material supply device (C) on the inner surface of a cylindrical molding form (A) intermittently rotating at an arbitrary pitch. Supply,
A method for forming a fiber reinforced plastic tube in which the mixed supply is impregnated and defoamed by a defoaming roller (D), wherein the cylindrical form (A) is rotated while rotation at an arbitrary pitch is stopped. While moving in the axial direction, the reinforcing fiber (5) and the resin composition (15) are supplied in a belt shape in the direction of the rotation axis on the inner surface of the cylindrical form (A), and the supplied material is impregnated and defoamed. A method for forming a fiber-reinforced plastic tube, comprising repeating a series of operations for rotating the tubular form (A) at an arbitrary pitch.
させる代わりに、材料供給装置(C)を、筒状型枠
(A)の回転軸方向へ移動させる請求項3に記載の繊維
強化プラスチックス管の成形方法。4. The material supply device (C) is moved in the direction of the rotation axis of the cylindrical form (A) instead of moving the cylindrical form (A) in the direction of the rotation axis. Method of forming fiber reinforced plastic tube.
(A)の内面に供給する強化繊維(5)と樹脂組成物
(15)の混合物が、筒状型枠(A)の任意の回転ピッ
チによって、筒状型枠(A)内における混合物の供給位
置より少なくとも筒状型枠(A)が半回転した位置で、
ゲル化を始めるように調製されている請求項3に記載の
繊維強化プラスチックス管の成形方法。5. The resin composition (15) is a mixture of a reinforcing fiber (5) and a resin composition (15) supplied to the inner surface of a cylindrical form (A). At an arbitrary rotation pitch, at least at a position where the cylindrical form (A) has rotated half a turn from the supply position of the mixture in the cylindrical form (A),
4. The method of molding a fiber reinforced plastic tube according to claim 3, wherein the tube is prepared so as to start gelation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6054375A JP2956472B2 (en) | 1994-03-01 | 1994-03-01 | Apparatus and method for molding fiber-reinforced plastic pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6054375A JP2956472B2 (en) | 1994-03-01 | 1994-03-01 | Apparatus and method for molding fiber-reinforced plastic pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07241922A JPH07241922A (en) | 1995-09-19 |
JP2956472B2 true JP2956472B2 (en) | 1999-10-04 |
Family
ID=12968935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6054375A Expired - Fee Related JP2956472B2 (en) | 1994-03-01 | 1994-03-01 | Apparatus and method for molding fiber-reinforced plastic pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2956472B2 (en) |
-
1994
- 1994-03-01 JP JP6054375A patent/JP2956472B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07241922A (en) | 1995-09-19 |
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