JPH09323357A - Method for connection of thermoplastic resin pipe and device therefor - Google Patents

Method for connection of thermoplastic resin pipe and device therefor

Info

Publication number
JPH09323357A
JPH09323357A JP8144334A JP14433496A JPH09323357A JP H09323357 A JPH09323357 A JP H09323357A JP 8144334 A JP8144334 A JP 8144334A JP 14433496 A JP14433496 A JP 14433496A JP H09323357 A JPH09323357 A JP H09323357A
Authority
JP
Japan
Prior art keywords
pipe
thermoplastic resin
short
polyethylene
cylinder
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.)
Withdrawn
Application number
JP8144334A
Other languages
Japanese (ja)
Inventor
Sadao Fukuoka
貞夫 福岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP8144334A priority Critical patent/JPH09323357A/en
Publication of JPH09323357A publication Critical patent/JPH09323357A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable polyethylene pipes to be connected together with a short polyethylene cylinder in which a heating element is not buried. SOLUTION: The tubular end part of each of polyethylene pipes 3 is inserted into the open part of a short polyethylene cylinder 4 to bring the outer peripheral wall of the polyethylene pipe 3 into contact with the inner peripheral wall of the short polyethylene cylinder 4. At the same time, the outer peripheral face of the tubular end part of the polyethylene pipe 3 and the inner peripheral face of the short polyethylene cylinder 4 are fused together by rotating the short polyethylene cylinder 4 at its cylindrical shaft as a rotating pivot while the polyethylene pipe 3 is pressed toward the short polyethylene cylinder 4. Next, the rotation of the short polyethylene cylinder 4 is stopped to weld the outer peripheral wall of the tubular end part of the polyethylene pipe 3 to the inner peripheral wall of the short polyethylene cylinder 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】この発明は融着による熱可塑
性樹脂管の接続方法およびその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting thermoplastic resin pipes by fusion and an apparatus therefor.

【０００２】[0002]

【従来の技術】融着によって熱可塑性樹脂管を接続する
方法としては、接続する熱可塑性樹脂管の管端部外面と
熱可塑性樹脂製管継手の管受口内面とをヒーターによっ
て加熱して軟化乃至溶融させ、熱可塑性樹脂管の管端部
を管受口に挿入し、管端部外面と管受口内面とを融着
し、その後冷却固化して接続する方法が知られている。2. Description of the Related Art A method for connecting thermoplastic resin pipes by fusion is to soften the outer surface of the pipe end of the thermoplastic resin pipe to be connected and the inner surface of the pipe receiving port of the thermoplastic resin pipe joint by heating with a heater. A method is known in which a pipe end of a thermoplastic resin pipe is melted, the pipe end is inserted into a pipe receiving port, the pipe end outer surface and the pipe receiving port inner surface are fused, and then cooled and solidified for connection.

【０００３】このような方法では、ヒーターで管端部外
面や管受口内面を均一に加熱することや、加熱後に管端
部を管受口に挿入するまでの間に軟化乃至溶融部が冷却
していくので、接合時に適切な軟化乃至溶融状態に保つ
ことが難しく、満足すべき接合状態が得られなかった。In such a method, the outer surface of the tube end portion and the inner surface of the tube receiving opening are uniformly heated by the heater, and the softened or melted portion is cooled before the tube end is inserted into the tube receiving opening after heating. Therefore, it is difficult to maintain an appropriate softened or molten state at the time of joining, and a satisfactory joined state was not obtained.

【０００４】そこで、熱可塑性樹脂製管継手の受口部に
発熱体を埋設しておき、熱可塑性樹脂管を管継手に挿入
し、発熱体の熱によって管外面と管継手の内面を軟化乃
至溶融させて接合する方法が提案されている（例えば、
特開昭６１−１３０６９５号公報、実開昭６２−１０７
１９２号公報等）。Therefore, a heating element is embedded in the receiving portion of the thermoplastic resin pipe joint, the thermoplastic resin pipe is inserted into the pipe joint, and the heat of the heating element softens the outer surface of the pipe and the inner surface of the pipe joint. A method of melting and joining has been proposed (for example,
Japanese Patent Laid-Open No. 61-130695 and Japanese Utility Model Laid-Open No. 62-107.
192).

【０００５】[0005]

【発明が解決しようとする課題】上記管継手は線状の発
熱体をコイル状に巻回した状態で管受口部の内壁部に埋
設した構成であり、射出成形法によって製造されるもの
であるが、線状の発熱体を埋設することは煩瑣であり射
出成形の生産性が低下するので管継手が高価なものとな
る。また、射出成形時の樹脂圧によって線状の発熱体の
位置がずれて所定位置に固定されず、熱可塑性樹脂が均
一に加熱さなかったり、発熱体が電気的に短絡するおそ
れがあった。The pipe joint has a structure in which a linear heating element is wound in a coil shape and embedded in the inner wall portion of the pipe receiving portion, and is manufactured by an injection molding method. However, embedding a linear heating element is troublesome and the productivity of injection molding is reduced, so the pipe joint becomes expensive. In addition, the position of the linear heating element is displaced due to the resin pressure during injection molding and is not fixed at a predetermined position, the thermoplastic resin may not be uniformly heated, or the heating element may be electrically short-circuited.

【０００６】この発明は、上記の点に鑑み、発熱体を埋
設していない、熱可塑性樹脂製管継手を用いて融着可能
な熱可塑性樹脂管の接続方法およびその接続装置を提供
することを目的とする。In view of the above points, the present invention provides a method for connecting thermoplastic resin pipes and a connecting device for the same which can be fused by using a thermoplastic resin pipe joint in which a heating element is not buried. To aim.

【０００７】[0007]

【課題を解決するための手段】この発明の熱可塑性樹脂
管の接続方法は、熱可塑性樹脂短筒の開口部に熱可塑性
樹脂管の管端部を挿入してその外周面を短筒の内周面に
接触させると共に熱可塑性樹脂管を短筒方向に押圧しつ
つ短筒をその筒軸を回転軸として回転させて熱可塑性樹
脂管の管端部外周面と短筒の内周面とを溶融し、次いで
短筒の回転を止めることにより熱可塑性樹脂管の管端部
外周面を短筒内周面に融着することを特徴とする。According to the method of connecting a thermoplastic resin pipe of the present invention, the pipe end of the thermoplastic resin pipe is inserted into the opening of the thermoplastic resin short pipe, and the outer peripheral surface of the pipe is inside the short pipe. While making contact with the peripheral surface and pressing the thermoplastic resin pipe in the direction of the short cylinder, the short cylinder is rotated around its cylinder axis to rotate the outer peripheral surface of the pipe end of the thermoplastic resin pipe and the inner peripheral surface of the short cylinder. It is characterized in that the outer peripheral surface of the pipe end portion of the thermoplastic resin tube is fused to the inner peripheral surface of the short cylinder by melting and then stopping the rotation of the short cylinder.

【０００８】また、この発明の熱可塑性樹脂管の接続装
置は、熱可塑性樹脂短筒をその筒軸を回転軸として回転
するための回転装置と、熱可塑性樹脂管をその管軸が前
記熱可塑性樹脂短筒の管軸と一致するように保持し、回
転装置に向けて押圧する押圧装置とからなることを特徴
とする。The thermoplastic resin pipe connecting device according to the present invention includes a rotating device for rotating the thermoplastic resin short cylinder about its cylinder axis, and a thermoplastic resin tube having its pipe axis formed of the thermoplastic resin. It is characterized in that it comprises a pressing device which is held so as to coincide with the tube axis of the resin short cylinder and presses toward the rotating device.

【０００９】上記熱可塑性樹脂管および熱可塑性樹脂短
筒に用いられる熱可塑性樹脂としては、ポリエチレン、
ポリプロピレン等のポリオレフィン、ポリアミド、ポリ
アセタール、フッ素樹脂、塩化ビニル系樹脂、ＡＢＳ樹
脂などがあげられる。As the thermoplastic resin used for the thermoplastic resin pipe and the thermoplastic resin short tube, polyethylene,
Examples thereof include polyolefin such as polypropylene, polyamide, polyacetal, fluororesin, vinyl chloride resin, ABS resin and the like.

【００１０】（作用）この発明の熱可塑性樹脂管の接続
方法においては、熱可塑性樹脂短筒をその筒軸を回転軸
として回転させることにより、熱可塑性樹脂短筒と熱可
塑性樹脂管の接触部分に摩擦熱が発生し、その部分は均
一に加熱されて融着可能な程度に溶融する。そして、短
筒の回転を止めると溶融部分は一体化して接合する。そ
の後、その溶融部分は冷却固化する。こうして熱可塑性
樹脂管と熱可塑性樹脂短筒とは一体に接続される。この
ように、熱可塑性樹脂短筒は発熱体を必要としないの
で、発熱体を短筒の内壁部に埋設するような煩瑣な手間
がかからず、安価なものを使用できる。(Operation) In the method for connecting a thermoplastic resin pipe of the present invention, the thermoplastic resin short cylinder is rotated about its cylinder axis so that the contact portion between the thermoplastic resin short cylinder and the thermoplastic resin pipe. Friction heat is generated in the part, and the part is uniformly heated and melted to the extent that it can be fused. Then, when the rotation of the short cylinder is stopped, the molten portions are integrally joined. After that, the molten portion is cooled and solidified. In this way, the thermoplastic resin pipe and the thermoplastic resin short cylinder are integrally connected. As described above, since the thermoplastic resin short tube does not require a heating element, it is possible to use an inexpensive one without the troublesome work of burying the heating element in the inner wall portion of the short tube.

【００１１】また、この発明の熱可塑性樹脂管の接続装
置においては、熱可塑性樹脂管と熱可塑性樹脂短筒と
を、それぞれ押圧装置と回転装置とに装着し、それぞれ
の装置を駆動させると、熱可塑性樹脂管の端部が熱可塑
性樹脂短筒の開口部に挿入され押圧状態で熱可塑性樹脂
短筒が回転し、この回転によって熱可塑性樹脂短筒と熱
可塑性樹脂管の接触部分に摩擦熱が発生し、その部分が
融着可能な程度に溶融し一体化して接合する。その後、
装置の駆動を止めるとその溶融部分は冷却固化して熱可
塑性樹脂管と熱可塑性樹脂短筒とは一体に接続される。In the thermoplastic resin pipe connecting device of the present invention, when the thermoplastic resin pipe and the thermoplastic resin short cylinder are attached to the pressing device and the rotating device, respectively, and each device is driven, The end of the thermoplastic resin tube is inserted into the opening of the thermoplastic resin short tube, and the thermoplastic resin short tube rotates in a pressed state, and this rotation causes friction heat to the contact portion between the thermoplastic resin short tube and the thermoplastic resin tube. Occurs, and the portions are melted to an extent such that they can be fused and integrated and joined. afterwards,
When the driving of the apparatus is stopped, the melted portion is cooled and solidified, and the thermoplastic resin pipe and the thermoplastic resin short cylinder are integrally connected.

【００１２】[0012]

【発明の実施の形態】この発明の実施の形態を図面を参
照して説明する。Embodiments of the present invention will be described with reference to the drawings.

【００１３】図１はこの発明の熱可塑性樹脂管の接続装
置の概略図を示すものであって、（イ）は正面断面図、
（ロ）は（イ）のＡ−Ａ断面図である。この図面におい
て、１は回転装置、２は押圧装置、３は熱可塑性樹脂
管、４は熱可塑性樹脂短筒である。FIG. 1 is a schematic view of a thermoplastic resin pipe connecting device of the present invention, in which (a) is a front sectional view,
(B) is an AA sectional view of (A). In this drawing, 1 is a rotating device, 2 is a pressing device, 3 is a thermoplastic resin tube, and 4 is a thermoplastic resin short cylinder.

【００１４】回転装置１は、図１（ロ）に示すとおり、
駆動モーター１１、二つの支持腕１２、１２、二つの駆
動ベルト１３等から構成されている。支持碗１２、１２
は、駆動モーター１１の架台に開閉可能に軸支されてい
る。駆動ベルト１３は、駆動モーター１１の駆動軸１１
１と支持腕１２に設けられた複数の案内ロール１４、１
４・・に掛け渡されている。支持碗１２、１２を図１
（ロ）に示す状態に閉じると、駆動ベルト１３は熱可塑
性樹脂短筒４の筒壁に圧着し、駆動モーター１１を駆動
させると矢印方向に回動し、熱可塑性樹脂短筒４がその
筒軸を回転軸として回転するようになっている。The rotating device 1 is, as shown in FIG.
It is composed of a drive motor 11, two support arms 12 and 12, two drive belts 13 and the like. Support bowl 12, 12
Is rotatably supported on the mount of the drive motor 11 so as to be openable and closable. The drive belt 13 is a drive shaft 11 of the drive motor 11.
1 and a plurality of guide rolls 14 provided on the support arm 12,
It has been passed over 4 ... Support bowls 12 and 12 are shown in FIG.
When closed in the state shown in (b), the drive belt 13 is pressure-bonded to the cylinder wall of the thermoplastic resin short cylinder 4, and when the drive motor 11 is driven, the drive belt 13 rotates in the direction of the arrow, and the thermoplastic resin short cylinder 4 becomes the cylinder. It is designed to rotate about the axis.

【００１５】押圧装置２は、熱可塑性樹脂管３をその管
軸が回転装置１に取り付けられた熱可塑性樹脂短筒の筒
軸と一致するように挟持する管保持部２１と、この管保
持部２１を管軸に沿って回転装置１の方向に押圧する流
体圧シリンダーからなる押圧部２２とから構成されてい
る。The pressing device 2 holds a pipe holding portion 21 for holding the thermoplastic resin pipe 3 so that the pipe axis thereof coincides with the tubular axis of the thermoplastic resin short pipe attached to the rotating device 1, and this pipe holding portion. And a pressing portion 22 formed of a fluid pressure cylinder that presses 21 in the direction of the rotating device 1 along the tube axis.

【００１６】次に、上記装置により、熱可塑性樹脂管の
接続方法を説明する。なお、熱可塑性樹脂短筒４として
ポリエチレン短筒を用い、熱可塑性樹脂管３としてポリ
エチレン管を用いて接続する場合を説明する。Next, a method of connecting the thermoplastic resin pipes using the above apparatus will be described. A case will be described in which a polyethylene short tube is used as the thermoplastic resin short tube 4 and a polyethylene tube is used as the thermoplastic resin tube 3 for connection.

【００１７】ポリエチレン短筒４は、図２に示すとお
り、両端に管受口４１、４１とその奥部にストッパー４
２を有するいわゆるソケット式の管継手であり、外周面
に筒軸方向の複数の凹溝４３が多数設けられている。管
受口４１、４１は、入口部内径が接続すべきポリエチレ
ン管３の外径よりやや大とされ、入口部より奥部の内径
はポリエチレン管３の外径よりやや小とされている。そ
して、ポリエチレン管４としては口径５０ｍｍのものを
用いた。As shown in FIG. 2, the polyethylene short tube 4 has pipe receptacles 41, 41 at both ends and a stopper 4 at the inner portion thereof.
This is a so-called socket type pipe joint having two, and a plurality of concave grooves 43 in the cylinder axis direction are provided on the outer peripheral surface. The pipe receiving openings 41, 41 have an inner diameter slightly larger than the outer diameter of the polyethylene pipe 3 to be connected, and an inner diameter deeper than the inlet is slightly smaller than the outer diameter of the polyethylene pipe 3. The polyethylene pipe 4 having a diameter of 50 mm was used.

【００１８】ポリエチレン短筒４を回転装置１に取り付
ける。すなわち、支持腕１２、１２を開いてポリエチレ
ン短筒４を入れ、図１（ロ）に示す状態に閉じ、駆動ベ
ルト１３でポリエチレン短筒４の筒壁を圧着する。The polyethylene short tube 4 is attached to the rotating device 1. That is, the support arms 12 and 12 are opened, the polyethylene short tube 4 is put therein, the polyethylene short tube 4 is closed as shown in FIG.

【００１９】一方、回転装置１の両サイドに押圧装置２
を置き、その管保持部２１で各ポリエチレン管３の管端
部を挟持してポリエチレン管３の管軸をポリエチレン短
筒４の筒軸と一致させる。そして、各ポリエチレン管３
の管端部をポリエチレン短筒４の管受口に導き、押圧部
２２を駆動させてポリエチレン短筒４の方向に１０ｋｇ
の押圧力で押圧する。ポリエチレン管３の管端部がポリ
エチレン短筒４の管受口内に、約１０ｋｇの押圧力で押
圧されている状態で、回転装置１のモーター１１を駆動
して駆動ベルト１３を矢印方向に回動させることにより
ポリエチレン短筒４をその筒軸を回転軸として、約５０
回転／分の回転速度で５〜１０秒間回転させる。On the other hand, the pressing device 2 is provided on both sides of the rotating device 1.
The polyethylene pipe 3 is clamped by the pipe holding portion 21 so that the pipe axis of the polyethylene pipe 3 coincides with that of the polyethylene short pipe 4. And each polyethylene pipe 3
The end of the pipe is guided to the pipe receiving port of the polyethylene short tube 4, and the pressing portion 22 is driven to move 10 kg in the direction of the polyethylene short tube 4.
Press with the pressing force of. The motor 11 of the rotating device 1 is driven to rotate the drive belt 13 in the direction of the arrow while the pipe end of the polyethylene pipe 3 is pressed into the pipe receiving opening of the polyethylene short cylinder 4 with a pressing force of about 10 kg. As a result, the polyethylene short cylinder 4 is rotated about its cylinder axis by about 50
Rotate for 5-10 seconds at a rotation speed of rotation / min.

【００２０】ポリエチレン短筒４の回転によって摩擦熱
が発生し、ポリエチレン管３の管端部の外周面とポリエ
チレン短筒４の管受口部内周面とは均一に加熱されて溶
融する。その後、押圧装置の押圧力を少し上げ、駆動モ
ーター１１を止め、ポリエチレン短筒４の回転を停止す
る。ポリエチレン管３の管端部の外周面とポリエチレン
短筒４の管受口部内周面の溶融部は、放冷により固化し
て一体に融着される。融着されたポリエチレン管とポリ
エチレン短筒を回転装置１と押圧装置２から取り外す。Friction heat is generated by the rotation of the polyethylene short tube 4, and the outer peripheral surface of the polyethylene pipe 3 and the inner peripheral surface of the polyethylene socket 4 are uniformly heated and melted. Then, the pressing force of the pressing device is slightly increased, the drive motor 11 is stopped, and the rotation of the polyethylene short tube 4 is stopped. The outer peripheral surface of the polyethylene pipe 3 at the pipe end portion and the melted portion of the inner peripheral surface of the pipe receiving portion of the polyethylene short cylinder 4 are solidified by cooling and are integrally fused. The fused polyethylene pipe and polyethylene short tube are removed from the rotating device 1 and the pressing device 2.

【００２１】なお、この発明方法による熱可塑性樹脂管
の分岐部や屈曲部等の接続にあたっては、熱可塑性樹脂
管と、熱可塑性樹脂分岐管や熱可塑性樹脂エルボ等の管
継手との間に前記のような熱可塑性樹脂短筒を介在させ
て回転させることにより融着して接続すればよい。例え
ば、分岐部の接続にあたっては、図３に示すとおり、管
端部の外径が熱可塑性樹脂管３ａと同径の熱可塑性樹脂
分岐管５を用い、その管端部と熱可塑性樹脂管３ａとの
間に熱可塑性樹脂短筒４ａを介在させ、前記と同様にし
て短筒４ａ回転させて融着して接続する。When connecting the branched portion and the bent portion of the thermoplastic resin pipe according to the method of the present invention, the thermoplastic resin pipe and the pipe joint such as the thermoplastic resin branch pipe and the thermoplastic resin elbow are connected to each other as described above. Such a thermoplastic resin short tube may be interposed and rotated to fuse and connect. For example, in connecting the branch portion, as shown in FIG. 3, a thermoplastic resin branch pipe 5 having an outer diameter of the pipe end portion equal to that of the thermoplastic resin pipe 3a is used, and the pipe end portion and the thermoplastic resin pipe 3a are used. The thermoplastic resin short cylinder 4a is interposed between the two and the short cylinder 4a is rotated and fused and connected in the same manner as described above.

【００２２】[0022]

【発明の効果】この発明の熱可塑性樹脂管の接続方法に
おいては、熱可塑性樹脂短筒を回転させることにより、
熱可塑性樹脂短筒と熱可塑性樹脂管の接触部分は摩擦熱
で均一に加熱されて溶融するから、均一に融着した接続
部が得られ、また、発熱体を埋設した高価な熱可塑性樹
脂製管継手を必要としない。In the method for connecting thermoplastic resin pipes of the present invention, by rotating the thermoplastic resin short cylinder,
The contact portion between the thermoplastic resin short tube and the thermoplastic resin tube is uniformly heated by frictional heat and melts, so that a uniformly fused connection part is obtained, and an expensive thermoplastic resin with a heating element embedded is used. No pipe fitting required.

【００２３】また、この発明の熱可塑性樹脂管の接続装
置によれば、熱可塑性樹脂管と熱可塑性樹脂短筒とを、
それぞれ押圧装置と回転装置とに装着し、それぞれの装
置を駆動させることにより、熱可塑性樹脂管の端部が熱
可塑性樹脂短筒の開口部に挿入され押圧状態で熱可塑性
樹脂短筒が回転し、この回転によって熱可塑性樹脂短筒
と熱可塑性樹脂管の接触部分に摩擦熱が発生し、その部
分が融着可能な程度に溶融し一体化して融着されるの
で、この発明方法を確実に行うことができる。According to the thermoplastic resin pipe connecting device of the present invention, the thermoplastic resin pipe and the thermoplastic resin short pipe are
Attached to the pressing device and the rotating device respectively, and by driving the respective devices, the end of the thermoplastic resin tube is inserted into the opening of the thermoplastic resin short tube, and the thermoplastic resin short tube rotates in the pressed state. As a result of this rotation, frictional heat is generated at the contact portion between the thermoplastic resin short tube and the thermoplastic resin tube, and the portion is melted to an extent such that it can be fused and integrated and fused. It can be carried out.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１はこの発明の熱可塑性樹脂管の接続装置の
概略図であって、（イ）は正面断面図、（ロ）は（イ）
のＡ−Ａ断面図である。FIG. 1 is a schematic view of a connecting device for thermoplastic resin pipes according to the present invention, in which (a) is a front sectional view and (b) is (a).
It is AA sectional drawing of.

【図２】この方法において用いられる熱可塑性樹脂短筒
の一例を示すもので、（イ）は正面図、（ロ）は（イ）
のＢ−Ｂ断面図である。FIG. 2 shows an example of a thermoplastic resin short cylinder used in this method, in which (a) is a front view and (b) is (a).
FIG.

【図３】分岐部の接続状態を示す断面図である。FIG. 3 is a cross-sectional view showing a connected state of a branch portion.

【符号の説明】[Explanation of symbols]

１ 回転装置 １３ 駆動ベルト ２ 押圧装置 ２１ 管保持部 ２２ 押圧部 ３ 熱可塑性樹脂管（ポリエチレン管） ４ 熱可塑性樹脂短筒（ポリエチレン短筒） ５ 熱可塑性樹脂分岐管 DESCRIPTION OF SYMBOLS 1 Rotating device 13 Drive belt 2 Pressing device 21 Pipe holding part 22 Pressing part 3 Thermoplastic resin pipe (polyethylene pipe) 4 Thermoplastic resin short pipe (polyethylene short pipe) 5 Thermoplastic resin branch pipe

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 熱可塑性樹脂短筒の開口部に熱可塑性樹
脂管の管端部を挿入してその外周面を短筒の内周面に接
触させると共に熱可塑性樹脂管を短筒方向に押圧しつつ
短筒をその筒軸を回転軸として回転させて熱可塑性樹脂
管の管端部外周面と短筒の内周面とを溶融し、次いで短
筒の回転を止めることにより熱可塑性樹脂管の管端部外
周面を短筒内周面に融着することを特徴とする熱可塑性
樹脂管の接続方法。1. A pipe end of a thermoplastic resin pipe is inserted into an opening of a short pipe of thermoplastic resin, an outer peripheral surface of the pipe is brought into contact with an inner peripheral face of the short pipe, and the thermoplastic resin pipe is pressed in the direction of the short pipe. While rotating the short cylinder with its cylinder axis as the rotation axis, the outer peripheral surface of the pipe end portion of the thermoplastic resin pipe and the inner peripheral surface of the short cylinder are melted, and then the rotation of the short cylinder is stopped to make the thermoplastic resin pipe. 2. A method for connecting a thermoplastic resin pipe, characterized in that the outer peripheral surface of the pipe end is fused to the inner peripheral surface of the short cylinder. 【請求項２】 熱可塑性樹脂短筒をその筒軸を回転軸と
して回転するための回転装置と、熱可塑性樹脂管をその
管軸が前記熱可塑性樹脂短筒の管軸と一致するように保
持し、回転装置に向けて押圧する押圧装置とからなるこ
とを特徴とする熱可塑性樹脂管の接続装置。2. A rotating device for rotating a thermoplastic resin short cylinder with its cylinder axis as a rotation axis, and a thermoplastic resin tube is held so that its tube axis coincides with the tube axis of the thermoplastic resin short tube. And a pressing device that presses toward the rotating device, the connecting device for the thermoplastic resin pipe.
JP8144334A 1996-06-06 1996-06-06 Method for connection of thermoplastic resin pipe and device therefor Withdrawn JPH09323357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8144334A JPH09323357A (en) 1996-06-06 1996-06-06 Method for connection of thermoplastic resin pipe and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8144334A JPH09323357A (en) 1996-06-06 1996-06-06 Method for connection of thermoplastic resin pipe and device therefor

Publications (1)

Publication Number Publication Date
JPH09323357A true JPH09323357A (en) 1997-12-16

Family

ID=15359702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8144334A Withdrawn JPH09323357A (en) 1996-06-06 1996-06-06 Method for connection of thermoplastic resin pipe and device therefor

Country Status (1)

Country Link
JP (1) JPH09323357A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002213677A (en) * 2001-01-17 2002-07-31 Sekisui Chem Co Ltd Connecting method for piping material of thermoplastic resin
WO2009117059A2 (en) 2008-03-18 2009-09-24 Saint-Gobain Performance Plastics Corporation Fluid transfer assemblies and related methods
KR101326015B1 (en) * 2013-02-19 2013-11-05 김선우 Pvc pipe of elbow type manufacturing method
JP2015209914A (en) * 2014-04-25 2015-11-24 本田技研工業株式会社 Piping material connecting method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002213677A (en) * 2001-01-17 2002-07-31 Sekisui Chem Co Ltd Connecting method for piping material of thermoplastic resin
WO2009117059A2 (en) 2008-03-18 2009-09-24 Saint-Gobain Performance Plastics Corporation Fluid transfer assemblies and related methods
EP2274044A2 (en) * 2008-03-18 2011-01-19 Saint-Gobain Performance Plastics Corporation Fluid transfer assemblies and related methods
JP2011515635A (en) * 2008-03-18 2011-05-19 サン−ゴバン パフォーマンス プラスティックス コーポレイション Fluid transfer assembly and related methods
EP2274044A4 (en) * 2008-03-18 2014-07-09 Saint Gobain Performance Plast Fluid transfer assemblies and related methods
US9259563B2 (en) 2008-03-18 2016-02-16 Saint-Gobain Performance Plastics Corporation Fluid transfer assemblies and related methods
KR101326015B1 (en) * 2013-02-19 2013-11-05 김선우 Pvc pipe of elbow type manufacturing method
JP2015209914A (en) * 2014-04-25 2015-11-24 本田技研工業株式会社 Piping material connecting method

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