JPS6155461B2 - - Google Patents
Info
- Publication number
- JPS6155461B2 JPS6155461B2 JP53095179A JP9517978A JPS6155461B2 JP S6155461 B2 JPS6155461 B2 JP S6155461B2 JP 53095179 A JP53095179 A JP 53095179A JP 9517978 A JP9517978 A JP 9517978A JP S6155461 B2 JPS6155461 B2 JP S6155461B2
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- material layer
- oval
- core mold
- shape
- 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
Links
- 239000012778 molding material Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000011417 postcuring Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 24
- 239000002344 surface layer Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000012779 reinforcing material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 229920006305 unsaturated polyester Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Moulding By Coating Moulds (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【発明の詳細な説明】
本発明は卵形の断面形状を有する卵形管を製造
する方法に関するものである。従来、周方向に回
転しつつ軸方向に移動する円筒状に保形された芯
型上に強化プラスチツク等の成形材料層を形成せ
しめて円形管を連続的に製造することがある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an oval tube having an oval cross-sectional shape. Conventionally, circular tubes have been manufactured continuously by forming a layer of molding material such as reinforced plastic on a cylindrical shape-retaining core mold that rotates in the circumferential direction and moves in the axial direction.
しかし、叙上と同じような方法で卵形管を製造
しようとすれば、卵形の外面形状を有するように
保形されつつ、周方向に回転し且つ軸方向に移動
する複雑な作動をする芯型が必要となり、このよ
うな芯型を製作したり運転したりするのが容易で
なく、また芯型上に均一に成形材料層を形成する
ことがむずかしいという欠点があつた。 However, if an oval tube is manufactured using a method similar to the one described above, it will have a complicated operation of rotating in the circumferential direction and moving in the axial direction while retaining the oval external shape. A core mold is required, and such a core mold is not easy to manufacture or operate, and it is difficult to uniformly form a layer of molding material on the core mold.
本発明は叙上の如き従来の欠点を解消すること
を目的としてなされたものであつて、その要旨
は、マンドレル上に円筒状に保形され周方向に回
転しつつ軸方向に移動する芯型上に成形材料層を
形成せしめ、マンドレルより抜け出した芯型上の
未硬化状態の該成形材料層を、該成形材料層の回
転に追随すべく回転自在とされる筒状体の内面に
複数個のローラーがその外周面をつなぐと所定の
卵形の輪郭が形成されるように配設されてなる変
形装置に挿入することにより卵形に変形し、後硬
化せしめることを特徴とする卵形管の製造方法に
存する。 The present invention was made for the purpose of solving the above-mentioned conventional drawbacks, and the gist thereof is to provide a core mold that is held in a cylindrical shape on a mandrel and moves in the axial direction while rotating in the circumferential direction. A molding material layer is formed on the molding material layer, and a plurality of uncured molding material layers on the core mold that have come out from the mandrel are placed on the inner surface of a cylindrical body that is rotatable to follow the rotation of the molding material layer. An oval-shaped tube characterized in that it is deformed into an oval shape by being inserted into a deformation device which is arranged such that a predetermined oval-shaped outline is formed when the outer peripheral surfaces of the oval rollers are connected, and the oval-shaped tube is post-cured. It consists in the manufacturing method.
本発明に使用する成形材料としては、例えば、
不飽和ポリエステル樹脂、エポキシ樹脂、ビニル
エステル樹脂等の熱硬化性樹脂と、ガラス繊維、
化学繊維等の強化材、または砂、炭酸カルシウ
ム、短繊維等の充填材を混合したもの等が用いら
れる。 Examples of molding materials used in the present invention include:
Thermosetting resins such as unsaturated polyester resins, epoxy resins, vinyl ester resins, glass fibers,
A mixture of reinforcing materials such as chemical fibers, or fillers such as sand, calcium carbonate, short fibers, etc., is used.
以下、本発明を実施例により図面を参照して説
明する。 Hereinafter, the present invention will be explained by way of examples with reference to the drawings.
一端を支持されたマンドレル１上に紙等からな
る帯状材料２をその外表面に接着剤を塗布して重
なり合うようにして螺旋状に巻きつけて芯型５を
形成し、芯型５の上にドラム３上にかけられたベ
ルト４をかけ、ドラム３をまわし、芯型５をマン
ドレル１の周方向に回転すると同時に先端方向へ
移動するようにする。 A core mold 5 is formed by applying adhesive to the outer surface of a strip material 2 made of paper or the like and spirally wrapping it overlappingly on a mandrel 1 whose one end is supported. A belt 4 is placed over the drum 3, and the drum 3 is rotated so that the core mold 5 is rotated in the circumferential direction of the mandrel 1 and simultaneously moved toward the tip.
芯型５の上に滑性フイルム６を巻きつけ、その
上にガラス繊維よりなるマツト等に増粘剤が混合
された不飽和ポリエステル等の樹脂液を含浸させ
た強化材７′を巻きつけ内表面層７を形成する。 A slippery film 6 is wrapped around the core mold 5, and a reinforcing material 7' made of glass fiber mat or the like impregnated with a resin liquid such as unsaturated polyester mixed with a thickener is wrapped around it. A surface layer 7 is formed.
内表面層７上と、芯型５の側方にその外表面と
所定間隔を有するように設けられた押えロール８
との間に、砂に短繊維を加えた充填材に増粘剤が
混合された不飽和ポリエステル等の樹脂液を混合
させた樹脂モルタル９′を供給して中間層９を形
成する。 A press roll 8 is provided on the inner surface layer 7 and on the side of the core mold 5 so as to have a predetermined distance from the outer surface thereof.
In between, a resin mortar 9' made of a filler made of sand and short fibers mixed with a resin liquid such as unsaturated polyester mixed with a thickener is supplied to form an intermediate layer 9.
中間層９上にガラス繊維よりなるマツト等に増
粘剤が混合された不飽和ポリエステル等の樹脂液
を含浸させた強化材１０′を巻きつけ外表面層１
０を形成する。 A reinforcing material 10' made of glass fiber mat or the like impregnated with a resin liquid such as unsaturated polyester mixed with a thickener is wound around the intermediate layer 9 to form the outer surface layer 1.
form 0.
かくして芯型５上に内表面層７と中間層９と外
表面層１０とよりなるサンドイツチ構造の成形材
料層を形成する。 In this way, a molding material layer having a sandwich structure including the inner surface layer 7, intermediate layer 9, and outer surface layer 10 is formed on the core mold 5.
尚、成形材料層は叙上の如きサンドイツチ構造
のものに限定されることなく、強化材または樹脂
モルタルのみからなるものでもよいし、また、こ
れらが交互に数層設けられたものでもよい。外表
面層１０上に離型フイルム１１を巻きつけ、成形
材料層が完全に硬化する前にマンドレル１より離
脱させる。 Incidentally, the molding material layer is not limited to the sandwich structure described above, but may be made of only reinforcing material or resin mortar, or may be made of several layers of these materials alternately provided. A release film 11 is wrapped around the outer surface layer 10 and removed from the mandrel 1 before the molding material layer is completely cured.
成形材料層の内周面に芯型５をつけたまま変形
装置１２，１３中を通過させ成形材料層を変形せ
しめる。尚、芯型５をつけたまま成形材料層を変
形せしめるので、芯型５が成形材料層を内部から
保護して成形材料層を型くずれさせることなく変
形できる。 The molding material layer is passed through deforming devices 12 and 13 with the core mold 5 attached to the inner circumferential surface of the molding material layer to deform the molding material layer. Incidentally, since the molding material layer is deformed with the core mold 5 attached, the core mold 5 protects the molding material layer from the inside and the molding material layer can be deformed without losing its shape.
変形装置１３は架台１３１の上に第１の筒状体
１３２が乗せられ、第１の筒状体１３２中に第２
の筒状体１３３が周方向に回転自在に設けられ成
形材料の回転速度と同調するようにされ、第２の
筒状体１３３の内面に中空方向に向つて支柱１３
４，１３４…が設けられ、隣接する支柱１３４，
１３４…の間にそれぞれ成形材料の移動方向に回
転するローラー１３５，１３５…が設けられ、ロ
ーラー１３５，１３５…の外周面をつなぐと変形
すべき卵形の輪郭が形成されるようにされてい
る。 In the deformation device 13, a first cylindrical body 132 is placed on a pedestal 131, and a second cylindrical body 132 is placed in the first cylindrical body 132.
A cylindrical body 133 is provided rotatably in the circumferential direction so as to synchronize with the rotational speed of the molding material, and supports 13 are provided on the inner surface of the second cylindrical body 133 toward the hollow direction.
4,134... are provided, and adjacent columns 134,
Rollers 135, 135, which rotate in the moving direction of the molding material, are provided between the rollers 134, respectively, and when the outer peripheral surfaces of the rollers 135, 135, are connected, an oval contour to be deformed is formed. .
尚、変形装置１２は成形材料層を変形装置１３
により卵形に変形するに先立つて予備的に円形か
ら卵形との中間の形状に変形する装置であるが、
卵形は三角形、菱形等の多角形のごとく直線と角
よりなるものではなく、円形に近いものであるの
で、変形装置１２のような予備的な変形装置は必
ずしも必要ではなく一度の変形により所定の形状
を得ることができる。 Note that the deforming device 12 transforms the molding material layer into a deforming device 13.
It is a device that preliminarily transforms from a circular shape to an intermediate shape between an egg shape and an egg shape before transforming into an egg shape.
Since the oval shape is not made up of straight lines and corners like polygons such as triangles and rhombuses, but is close to a circle, a preliminary deformation device such as the deformation device 12 is not necessarily necessary, and a predetermined shape can be achieved by a single deformation. It is possible to obtain the shape of
変形した成形材料層を硬化炉１４中をとおして
硬化せしめ、切刃１５で適宜長さに切断して卵形
管を連続製造する。 The deformed molding material layer is hardened through a hardening furnace 14 and cut into appropriate lengths with a cutting blade 15 to continuously manufacture oval tubes.
尚、成形材料層の内面の芯型は取り外してもよ
いし、またそのまま取り外さずに残してそのまま
使用するようにしてもよい。 Note that the core mold on the inner surface of the molding material layer may be removed, or may be left as is and used as is.
本発明の卵形管の製造方法は叙上の如く構成さ
れているので、断面円形の成形材料層の製造工程
において、複雑で高価な装置を必要とすることな
く卵形管を生産性よく連続製造することができ
る。 Since the method for manufacturing an oval tube of the present invention is configured as described above, the oval tube can be manufactured in a continuous manner with high productivity without the need for complicated and expensive equipment in the process of manufacturing a layer of molding material having a circular cross section. can be manufactured.
第１図は本発明の実施例を説明する平面図、第
２図は第１図の―線に沿う横断面図である。
符号の説明、１……マンドレル、５……芯型、
７……内表面層、９……中間層、１０……外表面
層、１２，１３……変形装置。
FIG. 1 is a plan view illustrating an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line -- in FIG. Explanation of symbols, 1...mandrel, 5...core type,
7... Inner surface layer, 9... Intermediate layer, 10... Outer surface layer, 12, 13... Deformation device.
Claims (1)
転しつつ軸方向に移動する芯型上に成形材料層を
形成せしめ、マンドレルより抜け出した芯型上の
未硬化状態の該成形材料層を、該成形材料層の回
転に追随すべく回転自在とされる筒状体の内面に
複数個のローラーがその外周面をつなぐと所定の
卵形の輪郭が形成されるように配設されてなる変
形装置に挿入することにより卵形に変形し、後硬
化せしめることを特徴とする卵形管の製造方法。1. A molding material layer is formed on a core mold that is held in a cylindrical shape on a mandrel and moves in the axial direction while rotating in the circumferential direction, and the molding material layer in an uncured state on the core mold that has come out of the mandrel, A deformation in which a plurality of rollers are disposed on the inner surface of a cylindrical body that is rotatable to follow the rotation of the molding material layer so that a predetermined oval contour is formed when the outer peripheral surfaces are connected. 1. A method for producing an oval-shaped tube, characterized by deforming it into an oval shape by inserting it into a device and post-curing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9517978A JPS5521286A (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of shape tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9517978A JPS5521286A (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of shape tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5521286A JPS5521286A (en) | 1980-02-15 |
| JPS6155461B2 true JPS6155461B2 (en) | 1986-11-27 |
Family
ID=14130513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9517978A Granted JPS5521286A (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of shape tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5521286A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894509U (en) * | 1981-12-19 | 1983-06-27 | 九州積水工業株式会社 | FRP pipe outer diameter adjustment device |
| JPS6213324A (en) * | 1985-07-10 | 1987-01-22 | Kubota Ltd | Manufacture of resin pipe |
| JPS62119027A (en) * | 1985-11-20 | 1987-05-30 | Agency Of Ind Science & Technol | Continuous forming of reinforced plastic pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137946A (en) * | 1974-09-27 | 1976-03-30 | Nippon Zeon Co |
-
1978
- 1978-08-03 JP JP9517978A patent/JPS5521286A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137946A (en) * | 1974-09-27 | 1976-03-30 | Nippon Zeon Co |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5521286A (en) | 1980-02-15 |
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