JPS5939295B2 - Manufacturing method of reinforced resin pipe joints - Google Patents
Manufacturing method of reinforced resin pipe jointsInfo
- Publication number
- JPS5939295B2 JPS5939295B2 JP55082302A JP8230280A JPS5939295B2 JP S5939295 B2 JPS5939295 B2 JP S5939295B2 JP 55082302 A JP55082302 A JP 55082302A JP 8230280 A JP8230280 A JP 8230280A JP S5939295 B2 JPS5939295 B2 JP S5939295B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- reinforced resin
- socket
- bending member
- manufacturing
- 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
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
本発明は強化樹脂製のベンド等の大きな曲り部を有する
管継手の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a pipe joint having a large bend such as a bent made of reinforced resin.
従来、強化樹脂製の曲り部を有する管継手を製造する場
合、中央部が彎曲し両端に受口部が設けられたような芯
型を用いたのでは芯型の脱型ができないので、例えば、
実開昭５１−４８６２９号公報の如く、大皿彎曲面側と
小弧彎曲面側の筒体を軸線に沿つて等分された割型と、
該割型の両端に結合されるソケット部形成用短筒体より
なる成形型に強化樹脂成形材料を供給して成形材料層を
形成し、硬化後成形型を分割して脱型する成形方法が知
られている。しかし、叙上の成形型を回転してその上に
強化樹脂成形材料を巻回しようとすると、成形型は彎曲
した割型の両端に重いソケット部形成用短筒体が結合さ
れており、回転軸に対して不均衡な成形型を回転しなけ
ればならず、大きな動力と頑丈な装置を要し設備も高く
なり、また成形型が芯ぶれしてその上に成形材料をうま
く巻回できなかつたり、または巻回作業をしにくいとい
う欠点があつた。Conventionally, when manufacturing pipe fittings with bent parts made of reinforced resin, if a core mold with a curved center part and sockets provided at both ends was used, the core mold could not be demolded. ,
As in Japanese Utility Model Application Publication No. 51-48629, a split mold in which the cylinder on the large curved surface side and the small arc curved surface side is equally divided along the axis;
A molding method includes supplying a reinforced resin molding material to a mold consisting of short cylinders for forming a socket part connected to both ends of the split mold to form a molding material layer, and dividing the mold after curing to remove the mold. Are known. However, when trying to rotate the mold described above and wind the reinforced resin molding material on top of it, the mold has a curved split mold with heavy short cylindrical bodies connected to both ends to form a socket, and the mold cannot be rotated. It is necessary to rotate a mold that is unbalanced with respect to the axis, which requires a large amount of power and sturdy equipment, and the equipment is expensive.Also, the mold may run out of center and the molding material cannot be wound properly on top of it. The drawback was that it was difficult to wrap or wind.
本発明は叙上の如き従来の欠点を解消し巻回成形方法に
より強化樹脂製の管継手を製造することを目的としてな
されたものであつて、その要旨は曲り部成形用芯型の外
周面に強化樹脂成形材料を巻回し、その端部外表面に短
繊維を散布し、硬化せしめた後脱型して端部外表面に繊
維の露出部が設けられてなる曲り部材を成形し、該曲り
部材を受口部成形用芯型の一端に装着し、該受口部成形
用芯型外周面から前記曲り部材の端部外周面にかけて強
化樹脂成形材料を巻回し、硬化せしめた後脱型して前記
曲り部材の端部に受口部を形成することを特徴とする強
化樹脂管継手の製造方法に存する。The present invention has been made for the purpose of solving the above-mentioned conventional drawbacks and manufacturing a reinforced resin pipe joint by a winding method. A reinforced resin molding material is wound around the outer surface of the end, short fibers are scattered on the outer surface of the end, and after hardening, the mold is removed to form a bent member with exposed fibers on the outer surface of the end. The bending member is attached to one end of the core mold for molding the socket portion, and a reinforced resin molding material is wound from the outer peripheral surface of the core mold for molding the socket portion to the outer peripheral surface of the end portion of the bending member, and after hardening, the mold is removed. The method of manufacturing a reinforced resin pipe joint is characterized in that a socket is formed at an end of the bent member.
以下、本発明のベンド型強化樹脂管継手の製造方法の一
実施例を図面を参照して説明する。EMBODIMENT OF THE INVENTION Hereinafter, one Example of the manufacturing method of the bend type reinforced resin pipe joint of this invention is demonstrated with reference to drawings.
第１図は本発明の一実施例の前半の工程を説明する縦断
面図、第２図は本発明の一実施例の後半の工程を説明す
る縦断面図、第３図は本発明の一実施例により製造した
管継手を示す縦断面図である。１は曲り部成形用芯型で
あつて、軸方向に円孤状に曲つた筒体１１，１１′が中
央部で連結され、筒体１１，１１／端部にフランジ１２
，１２′が設けられ、フランジ１２，１２′に円板１３
，１３′が連結され、円板１３，１３′の側方に回転軸
１４，１４′が設けられている。FIG. 1 is a vertical cross-sectional view explaining the first half of the process in an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view explaining the second half of the process in an embodiment of the present invention, and FIG. FIG. 2 is a longitudinal cross-sectional view showing a pipe joint manufactured according to an example. Reference numeral 1 is a core mold for forming a bent part, in which cylinders 11 and 11' bent in the shape of an arc in the axial direction are connected at the center, and a flange 12 is provided at the end of the cylinders 11 and 11.
, 12' are provided, and a disc 13 is provided on the flanges 12, 12'.
, 13' are connected, and rotating shafts 14, 14' are provided on the sides of the discs 13, 13'.
曲り部成形用芯型１は図面に示していない架台上に回転
軸１４，１４′のまわりに回転自在に載置され、回転軸
１４，１４′の一方が図面に示していない回転駆動装置
に連結されている。曲り部成形用芯型１を回転駆動装置
により駆動させて、その周りにガラス繊維等よりなるマ
ツトに不飽和ポリエステル樹脂等に適宜硬化剤を混合し
た樹脂液を含浸させたものを巻きつけて内表面層２０１
を形成し、その上にガラス繊維等よりなるすだれ布を強
化繊維方向が軸方向となるように巻きつけて強化層２０
２を形成し、次いでガラスローピング等の長繊維に前記
樹脂液を含浸させたものを巻きつけて周方向の強化層２
０３を形成し、最后に両端部の成形層表面にガラス繊維
等の短繊維を散布して短繊維の一部を成形層に喰い込ま
せ他部が露出した層２０４を形成し適宜加熱炉等で加熱
硬化せしめる。The core mold 1 for forming bent portions is placed on a stand (not shown in the drawings) so as to be rotatable around rotating shafts 14, 14', and one of the rotating shafts 14, 14' is connected to a rotary drive device (not shown in the drawings). connected. The core mold 1 for forming the curved portion is driven by a rotary drive device, and a mat made of glass fiber or the like impregnated with a resin liquid made of unsaturated polyester resin or the like mixed with an appropriate hardening agent is wrapped around it. Surface layer 201
A reinforcing layer 20 is formed by wrapping a blind cloth made of glass fiber or the like thereon so that the direction of the reinforcing fibers is in the axial direction.
2, and then winding long fibers such as glass rope impregnated with the resin liquid to form a reinforcing layer 2 in the circumferential direction.
03 is formed, and finally, short fibers such as glass fibers are scattered on the surface of the molding layer at both ends, and a part of the short fibers is bitten into the molding layer to form a layer 204 with the other part exposed, and then heated in a heating furnace or the like as appropriate. Heat and harden.
ＦＩｉｊｌ曲り部材２の両端部は薄肉に成形する。次に
、架台上より曲り部成形用芯型１を取り外筒体１１，１
Ｖより円板１３，１３′ を取り外し、筒体１１，１１
′の中央部の連結を解いて、筒体１１，１１′を脱型し
て曲り部材２を取り出す。Both ends of the FIijl bending member 2 are formed thin. Next, remove the core mold 1 for forming the bent portion from the mount and remove the outer cylinder 11,1.
Remove the discs 13, 13' from the V, and remove the cylinders 11, 11.
The central portions of the cylinders 11 and 11' are removed from the mold, and the bending member 2 is taken out.
３は成形しようとする受口部の内面形状に合致する外面
形状の部分を有する受口部成形型であつて、大径部３１
の一端外方に鍔３４が設けられ、内方にボス部３５が設
けられ、他端は次第に小径とされてその先端に曲り部材
２の端部の内径とほぼ等しい外径を有する小径部３２が
設けられ、小径部３２の外周面に環状溝３３が設けられ
、環状溝３３に弾性体からなる中空の環状体３６が装着
され、小径部３２の内方にボス部３２１が設けられ、ボ
ス部３５，３２１に回転軸３７が挿通され固定されてい
る。Reference numeral 3 denotes a socket molding die having an outer surface shape that matches the inner surface shape of the socket to be molded, and includes a large diameter portion 31.
A collar 34 is provided on the outside of one end, a boss portion 35 is provided on the inside, and the other end has a small diameter portion 32 that gradually becomes smaller in diameter and has an outer diameter approximately equal to the inner diameter of the end of the bending member 2 at its tip. An annular groove 33 is provided on the outer peripheral surface of the small diameter portion 32, a hollow annular body 36 made of an elastic body is attached to the annular groove 33, a boss portion 321 is provided inside the small diameter portion 32, and a boss portion 321 is provided inside the small diameter portion 32. A rotating shaft 37 is inserted through and fixed to the portions 35 and 321.
また中空の環状体３６の中空部は回転軸３７に設けられ
た通孔と連通され、外部より加圧可能とされている。受
口部成形型３は図面に示していない架台上に回転軸３７
が片持支持され、図面に示していない，駆動装置により
回転自在とされている〇受口部成形型３の小径部３２に
曲り部材２の一端２１を嵌着し、中空の環状体３６中に
空気を圧入し、環状体３６を膨張せしめて、曲り部材２
を受口部成形型３に固定する。Further, the hollow portion of the hollow annular body 36 communicates with a through hole provided in the rotating shaft 37, and can be pressurized from the outside. The socket mold 3 is mounted on a rotating shaft 37 on a stand not shown in the drawings.
is cantilever-supported and is rotatable by a drive device (not shown in the drawing). One end 21 of the bending member 2 is fitted into the small diameter portion 32 of the socket mold 3, and the bending member 2 is inserted into the hollow annular body 36. Air is injected into the annular body 36 to expand the bending member 2.
is fixed to the socket mold 3.
受口部成形型３を回転させて、受口部成形用型３の外周
面から曲り部材２の一端２１の外周面にかけてガラス繊
維等からなるマツトに不飽和ポリエステル樹脂に適宜硬
化剤を混合した樹脂液を含浸させて巻き付けて内面層４
１を形成し、その上にガラス繊維等よりなるすだれ布に
前記樹脂液を含浸したものを強化繊維方向が軸方向とな
る如く巻きつけて軸方向の強化層４２を形成し、その上
にガラスローピング等の長繊維に前記樹脂液を含浸させ
たものを巻きつけて周方向の強化層４３を形成し、加熱
炉等で加熱硬化後、環状体３６の加圧を解き、受口成形
型３より脱型して、曲り部材２の一端に受口部４を形成
する。The socket mold 3 was rotated, and an appropriate curing agent was mixed with unsaturated polyester resin in a mat made of glass fiber or the like from the outer peripheral surface of the socket mold 3 to the outer peripheral surface of one end 21 of the bending member 2. Impregnated with resin liquid and wrapped to form inner layer 4
A reinforcing layer 42 in the axial direction is formed by winding a blind cloth made of glass fiber or the like impregnated with the resin liquid so that the direction of the reinforcing fibers is in the axial direction. A reinforcing layer 43 in the circumferential direction is formed by winding long fibers such as roping impregnated with the resin liquid, and after hardening by heating in a heating furnace or the like, the pressure on the annular body 36 is released, and the socket mold 3 The mold is then removed to form a socket 4 at one end of the bending member 2.
叙上と全く同様の手段を用いて曲り部材２の他端２２に
も受口部４′を形成し、管継手の成形を終了する。A socket portion 4' is also formed on the other end 22 of the bending member 2 using the same means as described above, and the molding of the pipe joint is completed.
叙上の如く、本発明強化樹脂管継手の製造方法は、曲り
部材と受口部の成形を別工程でそれぞれ巻回方式で行う
ものであるので、それぞれの芯型は簡素化でき、両者を
一体としたものの如く、重く且つ回転軸に対して著しく
不均衡な成形型を大きな動力で回転する大がかりな装置
を必要とせずまたそれぞれの芯型の回転を円滑に行うこ
とができて、巻回方式により作業能率よく、且つ周方向
の強度が大で形状の精度よく、まず曲り部材を成形し、
次いで曲り部材の端部に受口部を成形することができ、
また、曲り部材の端部外表面に繊維の露出部が設けられ
ているので、既成形層と新成゛形層の間に樹脂濃度の高
い層ができず、また繊維によるアンカー効果と相まつて
一体に成形されたのと全く同様の強度を有する成形層と
なる。As mentioned above, in the manufacturing method of the reinforced resin pipe joint of the present invention, the bending member and the socket are formed in separate steps using a winding method, so the core shape of each can be simplified and both can be formed easily. Unlike an integrated mold, there is no need for a large-scale device that uses a large amount of power to rotate the mold, which is heavy and significantly unbalanced with respect to the rotation axis, and each core mold can be smoothly rotated. The method allows for high work efficiency, high strength in the circumferential direction, and good precision in shape. First, the bent member is formed,
A socket can then be formed at the end of the bending member;
In addition, since the exposed portion of the fibers is provided on the outer surface of the end of the bending member, a layer with high resin concentration is not formed between the already formed layer and the newly formed layer, and combined with the anchoring effect of the fibers, The resulting molded layer has exactly the same strength as if it were molded in one piece.
第１図は本発明の一実施例の前半の工程を説明する縦断
正面図、第２図は本発明の一実施例の後半の工程を説明
する縦断正面図、第３図は本発明の一実施例により製造
した管継手の縦断正面図である。
符号の説明 １・・・曲り部成形用芯型、２・・・曲り
部材、３・・・受口部成形用型。FIG. 1 is a longitudinal sectional front view illustrating the first half of the process in an embodiment of the present invention, FIG. 2 is a longitudinal sectional front view illustrating the latter half of the process in an embodiment of the present invention, and FIG. FIG. 2 is a longitudinal sectional front view of a pipe joint manufactured according to an example. Explanation of symbols 1... Core mold for forming the bent part, 2... Bent member, 3... Mold for forming the socket part.
Claims (1)
回し、その端部外表面に短繊維を散布し、硬化せしめた
後、脱型して端部外表面に繊維の露出部が設けられてな
る曲り部材を成形し、該曲り部材を受口部成形用芯型の
一端に装着し、該受口部成形用芯型外周面から前記曲り
部材の端部外周面にかけて強化樹脂成形材料を巻回し、
硬化せしめた後脱型して前記曲り部材の端部に受口部を
形成することを特徴とする強化樹脂管継手の製造方法。 ２ 曲り部材の端部が薄肉に成形されたものである特許
請求の範囲第１項記載の強化樹脂管継手の製造方法。[Scope of Claims] 1. A reinforced resin molding material is wound around the outer circumferential surface of a core mold for molding a bent part, short fibers are scattered on the outer surface of the end, and after hardening, the mold is removed and the outer surface of the end is A bending member having an exposed portion of fiber is formed, the bending member is attached to one end of a core mold for molding a socket, and the end of the bending member is formed from the outer peripheral surface of the core mold for molding a socket Wrap reinforced resin molding material around the outer circumference,
A method for manufacturing a reinforced resin pipe joint, comprising: forming a socket at an end of the bent member by removing the mold after curing. 2. The method for manufacturing a reinforced resin pipe joint according to claim 1, wherein the end portion of the bending member is formed into a thin wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55082302A JPS5939295B2 (en) | 1980-06-17 | 1980-06-17 | Manufacturing method of reinforced resin pipe joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55082302A JPS5939295B2 (en) | 1980-06-17 | 1980-06-17 | Manufacturing method of reinforced resin pipe joints |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15885078A Division JPS5582615A (en) | 1978-12-20 | 1978-12-20 | Production of reinforced resin joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5695635A JPS5695635A (en) | 1981-08-03 |
| JPS5939295B2 true JPS5939295B2 (en) | 1984-09-21 |
Family
ID=13770749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55082302A Expired JPS5939295B2 (en) | 1980-06-17 | 1980-06-17 | Manufacturing method of reinforced resin pipe joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939295B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421469A (en) * | 2020-04-24 | 2020-07-17 | 西安奕斯伟硅片技术有限公司 | Slurry transportation pipeline and slurry transportation system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178029A (en) * | 1984-02-24 | 1985-09-12 | Kubota Ltd | Core metal device for preparing resin pipe |
| GB8620071D0 (en) * | 1986-08-18 | 1986-10-01 | British Gas Corp | Structures of polymeric plastics material |
| US5943758A (en) * | 1997-09-30 | 1999-08-31 | Grafalloy Corporation | Fabrication of a hollow composite-material shaft having an integral collar |
-
1980
- 1980-06-17 JP JP55082302A patent/JPS5939295B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421469A (en) * | 2020-04-24 | 2020-07-17 | 西安奕斯伟硅片技术有限公司 | Slurry transportation pipeline and slurry transportation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5695635A (en) | 1981-08-03 |
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