JPH04464B2 - - Google Patents
Info
- Publication number
- JPH04464B2 JPH04464B2 JP59259555A JP25955584A JPH04464B2 JP H04464 B2 JPH04464 B2 JP H04464B2 JP 59259555 A JP59259555 A JP 59259555A JP 25955584 A JP25955584 A JP 25955584A JP H04464 B2 JPH04464 B2 JP H04464B2
- Authority
- JP
- Japan
- Prior art keywords
- socket
- core
- bent pipe
- main body
- mandrel
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 14
- 210000000078 claw Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
- B29D23/003—Pipe joints, e.g. straight joints
- B29D23/006—Elbows
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は曲管成形方法および装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a curved pipe forming method and apparatus.
従来の技術
一端に受口を有する樹脂製の曲管を成形する場
合に、従来は受口部と曲管本体部とを一体に有し
た芯金を用い、この芯金にロービングを巻付けて
硬化させた後に、引抜きにより脱型するのが一般
的となつている。Conventional technology When molding a resin curved pipe with a socket at one end, conventionally a core bar having a socket part and a curved pipe body integrally is used, and a roving is wound around this core bar. After curing, it is common to remove the mold by drawing it out.
発明が解決しようとする問題点
ところで、曲管を引抜きにより脱型する場合
は、成形管を芯金の軸心に沿つた湾曲経路上で移
動させなければならず、このとき、上記従来のも
のでは成形管の受口が邪魔になつて引抜きが困難
となりやすいという問題がある。また、両端に受
口を有する管では脱型が不可能になるという問題
がある。Problems to be Solved by the Invention By the way, when demolding a curved tube by drawing, the formed tube must be moved along a curved path along the axis of the core metal. However, there is a problem in that the socket of the formed tube gets in the way, making it difficult to pull it out. In addition, there is a problem in that a tube having sockets at both ends cannot be demolded.
そこで、本発明は、受口を有する樹脂製の曲管
の脱型を容易に行なえるようにするとともに、両
端に受口を有する曲管であつても容易に脱型でき
るようにすることを目的とする。 Therefore, the present invention aims to make it possible to easily demold a curved pipe made of resin that has sockets, and to also enable easy demolding of a curved pipe that has sockets at both ends. purpose.
問題点を解決するための手段
上記目的を達成するため本発明方法は、無頭状
の曲管本体の端面を受口芯金の端面に当接させて
この曲管本体を受口芯金と同軸上で固定し、前記
受口芯金と曲管本体とを一体に回転させながら、
受口芯金およびこの受口芯金に続く曲管本体端部
にロービングを巻付けるものである。Means for Solving the Problems In order to achieve the above object, the method of the present invention brings the end face of the headless bent pipe body into contact with the end face of the socket core metal, and connects this curved pipe body with the socket core metal. While fixing on the same axis and rotating the socket core and the bent pipe body together,
A roving is wound around the socket core and the end of the bent pipe body following the socket core.
また、本発明装置は、受口芯金と、無頭状の曲
管本体を内面から把持して前記受口芯金に連続す
る同軸上に固定させるチヤツク装置と、前記受口
芯金および曲管本体の端部にロービングを巻付け
るためこの受口芯金および曲管本体を一体に回転
させる回転駆動装置とを有する構成としたもので
ある。 Further, the device of the present invention includes a socket mandrel, a chuck device that grips a headless bent pipe body from the inner surface and fixes the socket mandrel on the same axis continuous to the socket mandrel, and In order to wrap the roving around the end of the tube body, the tube has a rotation drive device that rotates the socket core and the bent tube body together.
作 用
このようなものであると、曲管本体を成形後に
受口芯金だけを用いて受口を成形することになる
ため、受口を有する曲管であつてもこれを容易に
引抜き脱型可能であり、しかも両端に受口を有す
る曲管であつても容易に脱型可能となる。With such a structure, the socket is formed using only the socket core metal after forming the bent pipe body, so even if the bent pipe has a socket, it cannot be easily pulled out. It can be molded, and even a bent pipe having sockets at both ends can be easily demolded.
実施例
以下、本発明の実施例について説明する。第4
図は曲管本体1を成形するための芯金装置を示
し、2は90度に形成された筒状の芯金本体であ
る。この芯金本体2の両端には、芯金受けフラン
ジ3がそれぞれ取付けられている。芯金受けフラ
ンジ3には、回転軸4を取付けるためのブラケツ
ト5が設けられており、芯金本体2を回転軸4の
軸心6まわりで回転可能となつている。Examples Examples of the present invention will be described below. Fourth
The figure shows a core metal device for forming a bent pipe main body 1, and 2 is a cylindrical core metal body formed at 90 degrees. Core metal receiving flanges 3 are attached to both ends of this core metal body 2, respectively. The core metal receiving flange 3 is provided with a bracket 5 for attaching the rotating shaft 4, and the core body 2 is rotatable around the axis 6 of the rotating shaft 4.
第5図〜第6図は管の受口7を成形するための
芯金装置を示している。ここで8は受口芯金で、
第3図に示す回転駆動装置としてのターンテーブ
ル9上に取付けられ、水平面内で回転されるよう
になつている。受口芯金8の上側の端面10上に
はチヤツク装置11が設けられ、曲管本体1の端
面12を受口芯金8の端面10に当接させた状
態、すなわち曲管本体1を受口芯金8上に立てた
状態で、この曲管本体1を受口芯金8と同軸上に
固定可能となつている。 5 and 6 show a core metal device for forming the socket 7 of the pipe. Here, 8 is the socket core metal,
It is mounted on a turntable 9 as a rotation drive device shown in FIG. 3, and is adapted to be rotated in a horizontal plane. A chuck device 11 is provided on the upper end surface 10 of the socket mandrel 8, and the chuck device 11 is installed in a state in which the end surface 12 of the bent pipe main body 1 is brought into contact with the end surface 10 of the socket mandrel 8, that is, the state in which the bent pipe main body 1 is received. The bent pipe main body 1 can be fixed coaxially with the socket core 8 while standing upright on the socket core 8.
このチヤツク装置11において、13は端面1
0上に立設された固定爪、また14は受口芯金8
の径方向に移動可能とされた移動爪である。15
は移動爪14を移動させるためのねじシヤフト
で、端面10上に設けられた一対の受け金具16
に螺入貫通され、かつ移動爪14に回転自在に連
結されている。17は、ねじシヤフト15を回転
させるためのスパナ等が係合するようにこのねじ
シヤフト15に固定されたナツトである。 In this chuck device 11, 13 is an end face 1
0, and 14 is the socket core bar 8.
This is a movable pawl that is movable in the radial direction. 15
is a screw shaft for moving the movable claw 14, and a pair of receiving metal fittings 16 provided on the end surface 10.
It is screwed through and rotatably connected to the movable claw 14. 17 is a nut fixed to the screw shaft 15 so that a spanner or the like for rotating the screw shaft 15 is engaged therewith.
次に管の成形方法を説明する。まず、第4図に
示すように芯金本体2をセツトし、第1図に示す
ようにこの芯金本体2を軸心6まわりで回転させ
ながらロービング18を巻付ける。19はロービ
ング18を繰り出すためのヘツドで、軸心6と平
行な経路20上を往復可能であるとともに、経路
20と直角かつロービング18の繰出し方向と直
角な軸心まわりで回動可能とされている。これに
より、ロービング18は、芯金本体2の湾曲した
中心軸に対し常に直角になるように巻付けられ
る。 Next, the method of forming the tube will be explained. First, the core body 2 is set as shown in FIG. 4, and the roving 18 is wound around the core body 2 while rotating it around the axis 6 as shown in FIG. Reference numeral 19 denotes a head for feeding out the roving 18, which is capable of reciprocating on a path 20 parallel to the axis 6 and rotatable around an axis perpendicular to the path 20 and perpendicular to the feeding direction of the roving 18. There is. Thereby, the roving 18 is always wound at right angles to the curved central axis of the core body 2.
上記により、曲管本体1が芯金本体2と同様に
90度に成形されるため、芯金本体2からフランジ
3を取外した後に、曲管本体1を芯金本体2の湾
曲軸心方向に引抜いて脱型させる。脱型が完了し
たなら、必要がある場合は、第2図に示すように
曲管本体1をカツタ21にて所要角度に切管す
る。 As a result of the above, the bent pipe main body 1 is similar to the core metal main body 2.
Since it is formed at 90 degrees, after removing the flange 3 from the core body 2, the bent pipe body 1 is pulled out in the direction of the curved axis of the core body 2 to be demolded. After demolding is completed, if necessary, the curved pipe main body 1 is cut at a required angle using a cutter 21, as shown in FIG.
次に第3図および第6図に示すようにチヤツク
装置11の爪13,14を曲管本体1の内径に合
わせて開閉し、両爪13,14に曲管本体1を外
嵌させて、曲管本体1の端面12を受口芯金8の
端面10に当接させる。これにより曲管本体1
は、受口芯金8と同軸上にセツトされ、爪13,
14により受口芯金8から脱落しない程度に固定
されることになる。あるいは、曲管本体1の上部
開口から手を入れてねじシヤフト15を回し、移
動爪14を曲管本体1の内面に押圧させて強固に
固定してもよい。 Next, as shown in FIGS. 3 and 6, the claws 13 and 14 of the chuck device 11 are opened and closed in accordance with the inner diameter of the bent pipe main body 1, and the bent pipe main body 1 is fitted onto both claws 13 and 14, The end surface 12 of the bent pipe main body 1 is brought into contact with the end surface 10 of the socket core bar 8. As a result, the bent pipe body 1
is set coaxially with the socket core bar 8, and the claws 13,
14, it is fixed to the extent that it does not fall off from the socket core bar 8. Alternatively, the movable claw 14 may be firmly fixed by inserting a hand through the upper opening of the curved pipe main body 1 and turning the screw shaft 15 to press the movable claw 14 against the inner surface of the curved pipe main body 1.
曲管本体1が受口芯金8に固定されたなら、タ
ーンテーブル9をゆつくりと回転させて受口芯金
8と曲管本体1とを一体に回転させ、受口芯金8
およびこの受口芯金8に続く曲管本体1端部にロ
ービング22を巻付け、管受口7を成形する。受
口7が硬化したなら、必要な場合は移動爪14を
内側へ戻し、受口7を受口芯金8から引抜いて脱
型させる。 Once the bent pipe main body 1 is fixed to the socket core bar 8, slowly rotate the turntable 9 to rotate the socket core bar 8 and the bend pipe main body 1 together, and the socket core bar 8
A roving 22 is then wrapped around the end of the bent pipe main body 1 following the socket core 8 to form the pipe socket 7. Once the socket 7 is hardened, if necessary, move the movable claw 14 back inside, pull out the socket 7 from the socket core 8, and remove it from the mold.
このとき、受口7だけを引抜けばよいため、管
全体を引抜く場合に比べて容易に作業でき、簡単
に脱型できる利点がある。さらに、曲管本体1の
両端に受口7を形成することも可能である。 At this time, it is necessary to pull out only the socket 7, which has the advantage of being easier to work with and easier to demold than when pulling out the entire tube. Furthermore, it is also possible to form sockets 7 at both ends of the bent pipe main body 1.
発明の効果
以上述べたように本発明によると、受口を有す
る曲管であつてもこれを容易に引抜き脱型可能で
あり、しかも両端に受口を有する曲管をも容易に
脱型可能とすることができる。Effects of the Invention As described above, according to the present invention, even a curved pipe with sockets can be easily pulled out and demolded, and even a curved pipe with sockets at both ends can be easily demolded. It can be done.
第1図〜第3図は本発明方法の一実施例の説明
図、第4図は曲管本体成形用芯金装置を示す図、
第5図は本発明装置の一実施例の平面図、第6図
はその正面図である。
1……曲管本体、8……受口芯金、9……ター
ンテーブル(回転駆動装置)、10……端面、1
1……チヤツク装置、12……端面、18,22
……ロービング。
1 to 3 are explanatory diagrams of an embodiment of the method of the present invention, and FIG. 4 is a diagram showing a core metal device for forming a bent pipe body.
FIG. 5 is a plan view of one embodiment of the apparatus of the present invention, and FIG. 6 is a front view thereof. DESCRIPTION OF SYMBOLS 1... Bent pipe body, 8... Socket core, 9... Turntable (rotary drive device), 10... End face, 1
1...Chuck device, 12...End face, 18, 22
...Roving.
Claims (1)
当接させてこの曲管本体を受口芯金と同軸上で固
定し、前記受口芯金と曲管本体とを一体に回転さ
せながら、受口芯金およびこの受口芯金に続く曲
管本体端部にロービングを巻付けることを特徴と
する曲管成形方法。 2 受口芯金と、無頭状の曲管本体を内面から把
持して前記受口芯金に連続する同軸上に固定させ
るチヤツク装置と、前記受口芯金および曲管本体
の端部にロービングを巻付けるためこの受口芯金
および曲管本体を一体に回転させる回転駆動装置
とを有することを特徴とする曲管成形装置。[Scope of Claims] 1. The end surface of the headless bent pipe main body is brought into contact with the end surface of the socket mandrel, and this bent pipe main body is fixed coaxially with the socket mandrel, and the said socket mandrel and A method for forming a curved tube, comprising wrapping a roving around a socket core and the end of the curved tube main body following the socket core while rotating the curved tube body integrally. 2. A socket mandrel, a chuck device that grips the headless bent pipe body from the inner surface and fixes it on the same axis continuous to the socket mandrel, and A curved tube forming device characterized by having a rotation drive device that rotates the socket core and the curved tube body together in order to wrap the roving.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59259555A JPS61135733A (en) | 1984-12-07 | 1984-12-07 | Method and device for molding bent tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59259555A JPS61135733A (en) | 1984-12-07 | 1984-12-07 | Method and device for molding bent tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61135733A JPS61135733A (en) | 1986-06-23 |
JPH04464B2 true JPH04464B2 (en) | 1992-01-07 |
Family
ID=17335740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59259555A Granted JPS61135733A (en) | 1984-12-07 | 1984-12-07 | Method and device for molding bent tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61135733A (en) |
-
1984
- 1984-12-07 JP JP59259555A patent/JPS61135733A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61135733A (en) | 1986-06-23 |
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