JP2827918B2 - Pipe end coating refiner for coated steel pipe - Google Patents

Pipe end coating refiner for coated steel pipe

Info

Publication number
JP2827918B2
JP2827918B2 JP23671294A JP23671294A JP2827918B2 JP 2827918 B2 JP2827918 B2 JP 2827918B2 JP 23671294 A JP23671294 A JP 23671294A JP 23671294 A JP23671294 A JP 23671294A JP 2827918 B2 JP2827918 B2 JP 2827918B2
Authority
JP
Japan
Prior art keywords
steel pipe
pipe
blade
outer periphery
coating layer
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
Application number
JP23671294A
Other languages
Japanese (ja)
Other versions
JPH0899212A (en
Inventor
寿一 和南城
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP23671294A priority Critical patent/JP2827918B2/en
Publication of JPH0899212A publication Critical patent/JPH0899212A/en
Application granted granted Critical
Publication of JP2827918B2 publication Critical patent/JP2827918B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、外面被覆鋼管における
管端部の合成樹脂被膜(以下、「被覆層」という)を剥
離するための切り込み線入れや、切り込み線を入れた後
にさらに外面被覆前に管端に装着した接続栓を外面被覆
後に鋼管から分離する装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting line for peeling a synthetic resin film (hereinafter referred to as a "coating layer") at a pipe end portion of an outer surface coated steel pipe, and a further outer surface coating after the cutting line is formed. The present invention relates to an apparatus for separating a connection plug attached to a pipe end from a steel pipe after coating the outer surface thereof.

【0002】[0002]

【従来の技術】外面被覆鋼管は、鋼管の外面にポリエチ
レン等の被覆層を施した鋼管であり、地下埋設管等に使
用される。このような外面被覆鋼管は、鋼管の管端部に
接続栓を装着して鋼管同士を連結した後、丸ダイ方式に
より連続的に接続栓ごと鋼管の外面にポリエチレン等を
被覆される。そして、その後鋼管同士の連結部における
被覆層を切断して分離する。
2. Description of the Related Art An outer surface coated steel pipe is a steel pipe in which a coating layer of polyethylene or the like is provided on an outer surface of the steel pipe, and is used for an underground pipe or the like. In such an outer-surface-coated steel pipe, a connection plug is attached to a pipe end of the steel pipe to connect the steel pipes to each other, and then the outer surface of the steel pipe together with the connection plug is continuously coated with polyethylene or the like by a round die method. Then, the coating layer at the joint between the steel pipes is cut and separated.

【0003】従って、一本ずつ分離された被覆鋼管の管
端には、図7に示すように、その外周面に被覆層1が施
された接続栓2が残されたままである。なお、図7中の
Pは鋼管を示す。そこで、接続栓を鋼管より分離する必
要があり、従来は、鋼管の回転中に接続栓と鋼管の境界
部、すなわち管端より所定距離離れた位置に作業者がカ
ッターで切れ目を入れ、接続栓を分離していた。
Therefore, at the end of the coated steel pipe separated one by one, as shown in FIG. 7, a connection plug 2 having a coating layer 1 provided on the outer peripheral surface thereof remains. Note that P in FIG. 7 indicates a steel pipe. Therefore, it is necessary to separate the connection plug from the steel pipe.Conventionally, during rotation of the steel pipe, an operator makes a cut with a cutter at the boundary between the connection plug and the steel pipe, that is, at a position away from the pipe end by a predetermined distance. Was separated.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな作業者の手作業による分離では能率が上がらないば
かりか、鋼管が傾斜面を転動している間にカッターで切
れ目を入れているので安全面上の問題もあった。
However, such manual separation by the operator not only does not improve the efficiency, but also is safe because the steel pipe is cut with a cutter while rolling on the inclined surface. There were also face problems.

【0005】本発明は、上記した従来の問題点に鑑みて
なされたものであり、鋼管からの接続栓の分離作業を能
率良く、しかも安全に行える被覆鋼管における管端被覆
精整装置を提供することを目的としている。
The present invention has been made in view of the above-mentioned conventional problems, and provides a pipe end refining apparatus for a coated steel pipe capable of efficiently and safely separating a connecting plug from a steel pipe. It is intended to be.

【0006】[0006]

【課題を解決するための手段】上記した目的を達成する
ために、本発明の被覆鋼管における管端被覆精整装置
は、鋼管同士の連結部における被覆層を切断し分離した
鋼管の両管端に配置され、接続栓が装着された管端部の
被覆層を剥離し接続栓を鋼管から分離する管端被覆精整
装置であって、鋼管の端部側を固定するクランプ装置
と、このクランプ装置によって固定された鋼管端部に対
して接離移動しその先端を管端に装着された接続栓に挿
入して前記クランプ装置とで管端を支持するストッパー
台車と、このストッパー台車に配置され鋼管と同軸で回
転自在なドラム及びこのドラムの回転機構と、前記ドラ
ムの先端に設置された刃物台を備え、この刃物台は、接
離移動機構によって鋼管外周に対して接離移動し鋼管外
周を支持する支持ローラ群と、これら支持ローラ群と鋼
管を挟んで相対する位置に配置され、接離移動機構によ
って鋼管外周に対して接離移動し鋼管外周の被覆層を切
断する刃物と、この刃物と一体に鋼管外周に対して接離
移動し、刃物より先に鋼管外周に当接し当接後刃物が当
接するまでの刃物の移動速度を減速すべくダンパーを介
して設置されたタッチローラで構成しているのである。
In order to achieve the above-mentioned object, a pipe-end coating refinement apparatus for a coated steel pipe according to the present invention is characterized in that a coating layer at a connecting portion between steel pipes is cut to separate both pipe ends. A pipe end coating refining device for separating a connection plug from a steel pipe by peeling off a coating layer at a pipe end to which a connection plug is attached, and a clamp device for fixing an end side of the steel pipe; A stopper truck that moves toward and away from the end of the steel pipe fixed by the device, inserts the tip of the stopper into a connecting plug attached to the tube end, and supports the tube end with the clamping device; A drum rotatable coaxially with the steel pipe, a rotating mechanism for the drum, and a tool rest provided at the tip of the drum, wherein the tool rest moves toward and away from the outer circumference of the steel pipe by a moving mechanism for moving away from the outer circumference of the steel pipe. Supporting low A group of blades arranged at positions opposite to each other with the support roller group sandwiching the steel pipe therebetween, and moving toward and away from the outer periphery of the steel pipe by a contact and separation moving mechanism to cut a coating layer on the outer circumference of the steel pipe; and a steel pipe integrally formed with the blade. It is composed of a touch roller that is installed via a damper to move toward and away from the outer periphery and to reduce the moving speed of the blade until it comes into contact with the steel pipe outer periphery before the blade and before the blade comes into contact. is there.

【0007】[0007]

【作用】本発明の被覆鋼管における管端被覆精整装置で
は、鋼管の端部側をクランプ装置で固定した後、鋼管端
部に対してストッパー台車を接近移動しその先端を管端
に装着された接続栓に挿入して前記クランプ装置とで管
端を支持する。次に、回転機構を作動させてドラムを前
記鋼管と同軸で回転させる。そして、このドラムの回転
と同時に接離移動機構を作動させて支持ローラ群で鋼管
外周を支持した後、接離移動機構を作動させて刃物とタ
ッチローラを一体的に鋼管外周に対して接近移動させ
る。この時、先ずタッチローラが刃物より先に鋼管外周
に当接し、その後、刃物はダンパーによって鋼管外周へ
の接近速度が減速されて鋼管外周に対して当接し鋼管外
周の被覆層を切断する。
With the apparatus for coating and refining a coated steel pipe according to the present invention, after fixing the end of the steel pipe with a clamp device, the stopper carriage is moved closer to the end of the steel pipe and the tip is attached to the pipe end. The end of the tube is supported by the clamp device inserted into the plug. Next, the rotating mechanism is operated to rotate the drum coaxially with the steel pipe. Then, simultaneously with the rotation of the drum, the contact / separation moving mechanism is operated to support the outer periphery of the steel pipe with the support roller group, and then the contact / separation moving mechanism is operated to integrally move the blade and the touch roller toward the outer periphery of the steel pipe. Let it. At this time, first, the touch roller comes into contact with the outer periphery of the steel pipe before the blade, and then the speed of the blade is reduced by the damper to approach the outer circumference of the steel pipe, and the blade comes into contact with the outer circumference of the steel pipe to cut the coating layer on the outer circumference of the steel pipe.

【0008】被覆層の切断後は、切断だけの場合には、
接離移動機構を作動させてタッチローラ・刃物及び支持
ローラ群を元の位置に退避させた後ドラムの回転を停止
し、ストッパー台車を鋼管から離反させ、クランプを解
除する。また切断後、接続栓を鋼管から分離する場合に
は、タッチローラ・刃物及び支持ローラ群はそのままの
状態でストッパー台車を鋼管から離反させれば、接続栓
は鋼管から分離する。分離後はそれぞれの機構を作動さ
せて元の待機位置に戻す。
After cutting the coating layer, if only cutting is performed,
The contact / separation moving mechanism is operated to retract the touch roller / blade and support roller group to the original position, then the rotation of the drum is stopped, the stopper truck is separated from the steel pipe, and the clamp is released. When the connection plug is separated from the steel pipe after cutting, the stopper plug is separated from the steel pipe by separating the stopper carriage from the steel pipe while keeping the touch roller, the blade, and the support roller group as they are. After the separation, each mechanism is operated to return to the original standby position.

【0009】[0009]

【実施例】以下、本発明の管端被覆精整装置を図1〜図
6に示す1実施例に基づいて説明する。図1は本発明の
管端被覆精整装置の概略図、図2は本発明の管端被覆精
整装置を構成する刃物台の詳細を示す側面図、図3は図
2の正面図、図4は本発明の管端被覆精整装置を構成す
るクランプ装置の正面図、図5は本発明の管端被覆精整
装置を用いて被覆層を切断する際の刃物の動きを説明す
る鋼管の軸方向から見た図、図6は図4と同様の図で鋼
管の横断面方向から見た図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe end coating refinement apparatus according to the present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is a schematic view of a pipe end coating and refining apparatus of the present invention, FIG. 2 is a side view showing details of a tool post constituting the pipe end coating and refining apparatus of the present invention, and FIG. 3 is a front view of FIG. 4 is a front view of a clamp device constituting the pipe end coating and refining device of the present invention, and FIG. FIG. 6 is a view similar to FIG. 4 as viewed from the axial direction and viewed from the cross-sectional direction of the steel pipe.

【0010】図1〜図4において、11は鋼管同士の連
結部における被覆層1を切断され、その両管端に接続栓
2が装着された状態に分離された後、ウォーキングビー
ム等によって搬送されてきた鋼管Pの両管端に相対して
配置される本発明の管端被覆精整装置であり、接続栓2
が装着された鋼管Pの管端部の被覆層1を剥離し、接続
栓2を鋼管Pから分離するもので、以下のように構成さ
れている。
In FIG. 1 to FIG. 4, reference numeral 11 denotes a structure in which a coating layer 1 at a connecting portion between steel pipes is cut, separated into a state in which connection plugs 2 are attached to both pipe ends, and then conveyed by a walking beam or the like. A pipe end coating and refining apparatus of the present invention, which is disposed opposite to both pipe ends of a steel pipe P;
Is used to peel off the coating layer 1 at the pipe end of the steel pipe P to which the connection plug 2 is separated from the steel pipe P, and has the following configuration.

【0011】12は前記した所定位置まで搬送されてき
た鋼管Pの端部側を固定するクランプ装置であり、図4
に示すように、例えばエアーシリンダ装置12aのロッ
ド端に、その対向する両面にラック12ba・12bb
を形成した棒材12bを取り付け、ロッドの出退動によ
って前記それぞれのラック12ba・12bbに噛合す
る歯車12ca・12cbを反対方向に同調回転させ、
これら歯車12ca・12cbと同軸にその基端側のボ
ス12da・12eaを外嵌した対をなすクランプアー
ム12d・12eを接離揺動させることで、これらクラ
ンプアーム12d・12eの先端内面で鋼管Pを挟持し
固定するものである。
Reference numeral 12 denotes a clamp device for fixing the end of the steel pipe P conveyed to the predetermined position.
As shown in the figure, for example, racks 12ba, 12bb
Is mounted, and the gears 12ca and 12cb meshing with the respective racks 12ba and 12bb are tuned and rotated in opposite directions by the reciprocating movement of the rod,
By making the pair of clamp arms 12d, 12e having the bosses 12da, 12ea on the base end thereof coaxially coaxial with the gears 12ca, 12cb come into contact with and separate from each other, the steel pipe P Is held and fixed.

【0012】13は前記クランプ装置12によって端部
側を固定された鋼管Pの端面に対して、例えばガイドレ
ール14にその車輪13aが案内され、エアーシリンダ
装置15のロッドの出退動によって接離移動するストッ
パー台車であり、エアーシリンダ装置15のロッドの出
動作によって鋼管Pの端面に接近移動し、その先端を管
端に装着された接続栓2に挿入することで、前記クラン
プ装置12とで鋼管Pの端部を支持するものである。
A wheel 13a is guided by a guide rail 14, for example, to an end face of the steel pipe P, the end of which is fixed by the clamp device 12, and the rod 13 of the air cylinder device 15 moves toward and away from the end surface. A stopper carriage that moves, moves closer to the end face of the steel pipe P by the projecting operation of the rod of the air cylinder device 15, and inserts the tip of the steel pipe P into the connection plug 2 attached to the pipe end, so that it can be connected to the clamp device 12. It supports the end of the steel pipe P.

【0013】16は前記ストッパー台車13上に配置さ
れ、前記端部を支持された鋼管Pと同軸で回転が自在な
ように軸受け17を介して支持されたドラムであり、回
転機構18である例えばモータ18aの出力軸の回転を
ピニオン18bとこれに噛合する歯車18cを介して伝
えられ回転される。
Reference numeral 16 denotes a drum which is disposed on the stopper carriage 13 and supported via a bearing 17 so as to be rotatable coaxially with the steel pipe P whose end is supported. The rotation of the output shaft of the motor 18a is transmitted and rotated via a pinion 18b and a gear 18c meshing therewith.

【0014】19は前記ドラム16の先端に設置された
刃物台であり、例えば図2及び図3に示すような構成と
なされている。すなわち、20は前記鋼管Pの半径方向
同一水平位置に所定の間隔を存して配置された対をなす
支持ローラであり、ドラム16の軸と直角方向に立設さ
れた支持板21の下方両側に設置されたガイド部材22
に案内され、接離移動機構である例えばエアーシリンダ
装置23のロッドの出退動により、鋼管Pの外周に対し
て接離移動し、鋼管Pの外周を支持するようになってい
る。
Reference numeral 19 denotes a tool rest installed at the tip of the drum 16, which has a structure as shown in FIGS. 2 and 3, for example. That is, reference numeral 20 denotes a pair of support rollers arranged at predetermined intervals in the same horizontal position in the radial direction of the steel pipe P, and a lower side of a support plate 21 erected in a direction perpendicular to the axis of the drum 16. Guide member 22 installed in
Are moved toward and away from the outer periphery of the steel pipe P by the reciprocating movement of a rod of the air cylinder device 23 as a contact / separation moving mechanism, for example, to support the outer periphery of the steel pipe P.

【0015】24は前記対をなす支持ローラ20と鋼管
Pを挟んで相対する位置に配置される刃物であり、この
刃物24も前記した支持ローラ20と同様に、支持板2
1の上方両側に設置されたガイド部材25に案内され、
接離移動機構である例えばエアーシリンダ装置26のロ
ッドの出退動により、鋼管Pの外周に対して接離移動
し、鋼管Pの外周の被覆層を切断するようになってい
る。
Numeral 24 denotes a blade which is arranged at a position opposite to the pair of support rollers 20 with the steel pipe P interposed therebetween.
1 is guided by guide members 25 installed on both upper sides,
When the rod of the air cylinder device 26, which is a contact / separation moving mechanism, for example, moves in and out of the outer circumference of the steel pipe P, the coating layer on the outer circumference of the steel pipe P is cut.

【0016】27は前記刃物24を取り付けた移動板2
8の反対側に、ガイド部材29に案内され移動板28に
対して相対移動が自在なように配置されたタッチローラ
であり、常時は移動板28の裏面に取り付けられたオイ
ルダンパー30によって最下限に位置している。また、
このタッチローラ27は、最下限位置でその外周面が前
記刃物24の先端より若干下方に位置すべく配置され、
鋼管Pの外周に当接するまでは刃物24と一体的に鋼管
Pの外周に対して接離移動し、刃物24より先に鋼管P
の外周に当接する。
Reference numeral 27 denotes a moving plate 2 to which the blade 24 is attached.
8 is a touch roller which is guided by a guide member 29 so as to be relatively movable with respect to the movable plate 28, and which is always lowermost by an oil damper 30 attached to the back surface of the movable plate 28. It is located in. Also,
The touch roller 27 is disposed so that its outer peripheral surface is located slightly below the tip of the blade 24 at the lowermost position,
Until it comes into contact with the outer periphery of the steel pipe P, it moves toward and away from the outer periphery of the steel pipe P integrally with the cutter 24, and the steel pipe P
Abuts the outer periphery of

【0017】そして、タッチローラ27が鋼管Pの外周
に当接した後は、エアーシリンダ装置26のロッドの出
動作に伴って刃物24は鋼管Pの外周に向かって接近移
動するが、タッチローラ27は移動板28に対して相対
移動するので、タッチローラ27は前記鋼管Pの外周に
当接した位置を維持する。この時、オイルダンパー30
の作用によって刃物が当接するまでの移動速度は減速さ
れる。
After the touch roller 27 comes into contact with the outer periphery of the steel pipe P, the cutting tool 24 moves closer to the outer circumference of the steel pipe P with the extension operation of the rod of the air cylinder device 26. Moves relative to the moving plate 28, so that the touch roller 27 maintains a position in contact with the outer periphery of the steel pipe P. At this time, the oil damper 30
The movement speed until the blade comes into contact is reduced by the action of.

【0018】本発明の管端被覆精整装置は、上記したよ
うな構成であり、次に接続栓2が装着された管端部の被
覆層1を剥離し接続栓2を鋼管Pから分離する場合の順
序を説明する。
The pipe end coating and refining apparatus of the present invention has the above-described structure. Next, the coating layer 1 at the end of the pipe to which the connection plug 2 is attached is peeled off, and the connection plug 2 is separated from the steel pipe P. The order of the cases will be described.

【0019】鋼管同士の連結部における被覆層1を切断
され、その両管端に接続栓2が装着された状態に分離さ
れた後、ウォーキングビーム等によって所定位置まで搬
送されてきた鋼管Pの端部側を、エアーシリンダ装置1
2aのロッドを出動作させて対をなすクランプアーム1
2d・12eを接近揺動し、固定する。
After the coating layer 1 at the connecting portion between the steel pipes is cut off and separated into a state in which connection plugs 2 are attached to both ends of the pipe, the end of the steel pipe P which has been transported to a predetermined position by a walking beam or the like. The air cylinder device 1
Clamp arm 1 that makes a pair by moving out rod 2a
The 2d and 12e are swung closer and fixed.

【0020】そしてその後、エアーシリンダ装置15の
ロッドを出動作し、鋼管Pの端部に対してストッパー台
車13を接近移動しその先端を管端に装着された接続栓
2に挿入し、前記クランプ装置12とで管端を支持す
る。
Thereafter, the rod of the air cylinder device 15 is extended to move the stopper carriage 13 toward and away from the end of the steel pipe P, and the tip thereof is inserted into the connection plug 2 attached to the end of the steel pipe P. The tube end is supported by the device 12.

【0021】次に、モータ18aを作動させてドラム1
6を前記鋼管Pと同軸で回転させる。そして、このドラ
ム16の回転と同時にエアーシリンダ装置23のロッド
を出動作させて対をなす支持ローラ20で鋼管Pの外周
を支持した後、エアーシリンダ装置26のロッドを出動
作させて刃物24とタッチローラ27を一体的に鋼管P
の外周に対して接近移動させる。この時、先ずタッチロ
ーラ27が刃物24より先に鋼管Pの外周に当接し、そ
の後、刃物24はオイルダンパー30によって鋼管Pの
外周への接近速度が減速されて鋼管Pの外周に対して当
接し鋼管P外周の被覆層1を切断する。
Next, the motor 18a is operated to drive the drum 1
6 is rotated coaxially with the steel pipe P. Then, simultaneously with the rotation of the drum 16, the rod of the air cylinder device 23 is extended and the outer periphery of the steel pipe P is supported by the pair of support rollers 20. Touch roller 27 is integrated with steel pipe P
Move closer to the outer circumference of At this time, first, the touch roller 27 comes into contact with the outer periphery of the steel pipe P before the blade 24, and thereafter, the speed of the blade 24 approaching the outer circumference of the steel pipe P is reduced by the oil damper 30, so that the blade 24 comes into contact with the outer circumference of the steel pipe P. The coating layer 1 around the steel pipe P is cut off.

【0022】この切断時、刃物24の鋼管Pへの押しつ
け力が強すぎると刃物24の先端のエッジ部によって鋼
管Pの外周面に疵がつき、品質上問題となる。一方、押
しつけ力が弱すぎると被覆層1が厚み方向に全て切り込
めないという問題が生じる。しかるに、刃物24の移動
時間をできるだけ短くして作業能率を良くするために、
エアーシリンダ装置26を高速で作動させているが、こ
のエアーシリンダ装置26だけでは刃物24が高速で被
覆層1を切り込み、鋼管Pの外周面に刃物24による疵
が入る。
At this cutting, if the pressing force of the cutting tool 24 against the steel pipe P is too strong, the outer peripheral surface of the steel pipe P is flawed by the edge of the tip of the cutting tool 24, resulting in a quality problem. On the other hand, if the pressing force is too weak, there arises a problem that the coating layer 1 cannot be entirely cut in the thickness direction. However, in order to shorten the moving time of the blade 24 as much as possible and improve work efficiency,
Although the air cylinder device 26 is operated at a high speed, the blade 24 cuts the coating layer 1 at a high speed with the air cylinder device 26 alone, and a flaw caused by the blade 24 is formed on the outer peripheral surface of the steel pipe P.

【0023】そこで、本発明では、オイルダンパー30
を付設し、タッチローラ27が鋼管Pの外周に当接した
後は、図5に順を追って示すように、オイルダンパー3
0の作用によって刃物24が鋼管Pの外周に到達しても
疵がつかない程度に減速し、切り込み動作を行うように
している。この切り込み動作は刃物台19が鋼管Pと同
軸に回転しながら行われるが、この時の回転数は鋼管P
の円周方向全体にわたって確実に切り込みが行える最低
必要回転数でよい。例えば図6に示す例では刃物24が
被覆層1に当接した後、5/4回転すれば被覆層1は円
周方向全体にわたって確実に切り込めることになる。
Therefore, in the present invention, the oil damper 30
After the touch roller 27 comes into contact with the outer periphery of the steel pipe P, as shown in FIG.
By the action of 0, the cutting tool 24 is decelerated to such an extent that it does not have a flaw even when it reaches the outer periphery of the steel pipe P, so that the cutting operation is performed. This cutting operation is performed while the tool rest 19 is rotating coaxially with the steel pipe P.
The minimum required number of revolutions at which cutting can be reliably performed over the entire circumferential direction may be sufficient. For example, in the example shown in FIG. 6, if the cutting tool 24 makes contact with the coating layer 1 and makes a 5/4 turn, the coating layer 1 can be reliably cut over the entire circumferential direction.

【0024】被覆層を切断した後は、切断だけの場合
には、エアーシリンダ装置23・26のロッドを退動作
させてタッチローラ27・刃物24及び対をなす支持ロ
ーラ20を元の位置に退避させた後、モータ18aを停
止してドラム16の回転を停止する。そして、エアーシ
リンダ装置15のロッドを退動作してストッパー台車1
3を鋼管Pから離反させ、その後エアーシリンダ装置1
2aのロッドを退動作してクランプアーム12d・12
eを離反し、クランプを解除する。
After cutting the coating layer, if only cutting is to be performed, the rods of the air cylinder devices 23 and 26 are retracted to retract the touch roller 27, the blade 24 and the pair of support rollers 20 to their original positions. Then, the rotation of the drum 16 is stopped by stopping the motor 18a. Then, the rod of the air cylinder device 15 is retracted to stop the carriage 1.
3 from the steel pipe P, and then the air cylinder device 1
The rod of 2a is retracted to clamp arms 12d and 12d.
Release e and release the clamp.

【0025】また、切断後、接続栓2を鋼管Pから分
離する場合には、タッチローラ27・刃物24及び対を
なす支持ローラ20はそのままの状態で、エアーシリン
ダ装置15のロッドを退動作してストッパー台車13を
鋼管Pから離反させれば、接続栓2は鋼管Pから分離す
る。分離後はそれぞれの機構を作動させて元の待機位置
に戻す。
When the connecting plug 2 is separated from the steel pipe P after cutting, the rod of the air cylinder device 15 is retracted while the touch roller 27, the blade 24 and the pair of supporting rollers 20 are kept as they are. When the stopper truck 13 is separated from the steel pipe P, the connection plug 2 is separated from the steel pipe P. After the separation, each mechanism is operated to return to the original standby position.

【0026】なお、本実施例では接離移動機構として応
答性,安全性を考慮してエアーシリンダ装置を使用した
ものを示したが、モータとラック・ピニオンを用いたも
の等を使用してもよいことはいうまでもない。
In this embodiment, an air cylinder device is used as the contact / separation moving mechanism in consideration of responsiveness and safety. However, a mechanism using a motor and a rack and pinion may be used. It goes without saying that it is good.

【0027】[0027]

【発明の効果】以上説明したように、本発明の被覆鋼管
における管端被覆精整装置では、鋼管の端部側を固定す
るクランプ装置によって固定された鋼管端部に対して接
離移動しその先端を管端に装着された接続栓に挿入して
前記クランプ装置とで管端を支持するストッパー台車
と、このストッパー台車に配置され鋼管と同軸で回転自
在なドラム及びこのドラムの回転機構と、前記ドラムの
先端に設置された刃物台を備え、この刃物台は、接離移
動機構によって鋼管外周に対して接離移動し鋼管外周を
支持する支持ローラ群と、これら支持ローラ群と鋼管を
挟んで相対する位置に配置され、接離移動機構によって
鋼管外周に対して接離移動し鋼管外周の被覆層を切断す
る刃物と、この刃物と一体に鋼管外周に対して接離移動
し、刃物より先に鋼管外周に当接し当接後刃物が当接す
るまでの刃物の移動速度を減速すべくダンパーを介して
設置されたタッチローラで構成しているので、能率良く
しかも安全に鋼管の外周に疵を付けることなく被覆層を
切断でき、また、接続栓を鋼管から分離できる。
As described above, in the pipe end coating and refining apparatus for a coated steel pipe according to the present invention, the pipe end is moved toward and away from the end of the steel pipe fixed by the clamp device for fixing the end of the steel pipe. A stopper truck that inserts the distal end into a connection plug attached to the tube end and supports the tube end with the clamping device, a drum that is disposed on the stopper truck and is rotatable coaxially with the steel pipe, and a rotation mechanism of the drum, A tool post provided at the tip of the drum, the tool post moving toward and away from the outer periphery of the steel pipe by a contact / separation moving mechanism to support the outer periphery of the steel pipe, and sandwich the support roller group and the steel pipe; A blade that moves toward and away from the outer periphery of the steel pipe by the contact and separation movement mechanism and cuts the coating layer on the outer periphery of the steel pipe, and moves integrally with the blade toward and away from the outer circumference of the steel pipe. Steel first Since it consists of a touch roller installed via a damper to reduce the moving speed of the blade until it comes into contact with the outer periphery and then comes into contact with the blade, it efficiently and safely scratches the outer periphery of the steel pipe The connection plug can be separated from the steel pipe without cutting the coating layer.

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

【図1】本発明の管端被覆精整装置の概略図である。FIG. 1 is a schematic view of a pipe end coating refining device of the present invention.

【図2】本発明の管端被覆精整装置を構成する刃物台の
詳細を示す側面図である。
FIG. 2 is a side view showing details of a tool post constituting the pipe end coating refining device of the present invention.

【図3】図2の正面図である。FIG. 3 is a front view of FIG. 2;

【図4】本発明の管端被覆精整装置を構成するクランプ
装置の正面図である。
FIG. 4 is a front view of a clamp device that constitutes the pipe end coating refining device of the present invention.

【図5】本発明の管端被覆精整装置を用いて被覆層を切
断する際の刃物の動きを説明する鋼管の軸方向から見た
図である。
FIG. 5 is a view seen from the axial direction of a steel pipe for explaining the movement of a blade when cutting a coating layer using the pipe end coating refining device of the present invention.

【図6】図4と同様の図で鋼管の横断面方向から見た図
である。
FIG. 6 is a view similar to FIG. 4, but viewed from the cross-sectional direction of the steel pipe.

【図7】一本ずつ分離された被覆鋼管の管端の説明図で
ある。
FIG. 7 is an explanatory view of a pipe end of a coated steel pipe separated one by one.

【符号の説明】[Explanation of symbols]

P 鋼管 1 被覆層 2 接続栓 11 管端被覆精整装置 12 クランプ装置 13 ストッパー台車 15 エアーシリンダ装置 16 ドラム 18 回転機構 18a モータ 19 刃物台 20 支持ローラ 23 エアーシリンダ装置 24 刃物 26 エアーシリンダ装置 27 タッチローラ 30 オイルダンパー P Steel pipe 1 Coating layer 2 Connection plug 11 Pipe end coating refining device 12 Clamping device 13 Stopper truck 15 Air cylinder device 16 Drum 18 Rotary mechanism 18a Motor 19 Tool post 20 Support roller 23 Air cylinder device 24 Blade 26 Air cylinder device 27 Touch Roller 30 Oil Damper

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 鋼管同士の連結部における被覆層を切断
し分離した鋼管の両管端に配置され、接続栓が装着され
た管端部の被覆層を剥離し接続栓を鋼管から分離する管
端被覆精整装置であって、鋼管の端部側を固定するクラ
ンプ装置と、このクランプ装置によって固定された鋼管
端部に対して接離移動しその先端を管端に装着された接
続栓に挿入して前記クランプ装置とで管端を支持するス
トッパー台車と、このストッパー台車に配置され鋼管と
同軸で回転自在なドラム及びこのドラムの回転機構と、
前記ドラムの先端に設置された刃物台を備え、この刃物
台は、接離移動機構によって鋼管外周に対して接離移動
し鋼管外周を支持する支持ローラ群と、これら支持ロー
ラ群と鋼管を挟んで相対する位置に配置され、接離移動
機構によって鋼管外周に対して接離移動し鋼管外周の被
覆層を切断する刃物と、この刃物と一体に鋼管外周に対
して接離移動し、刃物より先に鋼管外周に当接し当接後
刃物が当接するまでの刃物の移動速度を減速すべくダン
パーを介して設置されたタッチローラで構成したことを
特徴とする被覆鋼管における管端被覆精整装置。
1. A pipe which cuts a coating layer at a connecting portion between steel pipes and is disposed at both pipe ends of a separated steel pipe, peels off a coating layer at a pipe end to which a connection plug is attached, and separates the connection plug from the steel pipe. An end coating refining device, comprising: a clamping device for fixing an end portion of a steel pipe; and a connecting plug attached to and separated from the end of the steel pipe fixed by the clamping device. A stopper truck that inserts and supports the pipe end with the clamping device, a drum that is disposed on the stopper truck and is rotatable coaxially with the steel pipe, and a rotation mechanism of the drum,
A tool post provided at the tip of the drum, the tool post moving toward and away from the outer periphery of the steel pipe by a contact / separation moving mechanism to support the outer periphery of the steel pipe, and sandwich the support roller group and the steel pipe; A blade that moves toward and away from the outer periphery of the steel pipe by the contact and separation movement mechanism and cuts the coating layer on the outer periphery of the steel pipe, and moves integrally with the blade toward and away from the outer circumference of the steel pipe. A pipe end coating refinement apparatus for a coated steel pipe, comprising: a touch roller provided via a damper to reduce a moving speed of the blade until the blade comes into contact with the outer circumference of the steel pipe first. .
JP23671294A 1994-09-30 1994-09-30 Pipe end coating refiner for coated steel pipe Expired - Lifetime JP2827918B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23671294A JP2827918B2 (en) 1994-09-30 1994-09-30 Pipe end coating refiner for coated steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23671294A JP2827918B2 (en) 1994-09-30 1994-09-30 Pipe end coating refiner for coated steel pipe

Publications (2)

Publication Number Publication Date
JPH0899212A JPH0899212A (en) 1996-04-16
JP2827918B2 true JP2827918B2 (en) 1998-11-25

Family

ID=17004656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23671294A Expired - Lifetime JP2827918B2 (en) 1994-09-30 1994-09-30 Pipe end coating refiner for coated steel pipe

Country Status (1)

Country Link
JP (1) JP2827918B2 (en)

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Also Published As

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