JPH1058225A - Device for running cut to standard length in continuous manufacturing facility for thin-walled pipe - Google Patents
Device for running cut to standard length in continuous manufacturing facility for thin-walled pipeInfo
- Publication number
- JPH1058225A JPH1058225A JP24133296A JP24133296A JPH1058225A JP H1058225 A JPH1058225 A JP H1058225A JP 24133296 A JP24133296 A JP 24133296A JP 24133296 A JP24133296 A JP 24133296A JP H1058225 A JPH1058225 A JP H1058225A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- continuous
- tube
- clamp
- fixed
- 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.)
- Granted
Links
Landscapes
- Shearing Machines (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ステンレス鋼等の
金属帯板を素材に用いて管状にロールフォーミングしな
がら突き合わせ部を縫合的に連続溶接する薄肉管連続製
造設備において、該連続製造設備に直結されて、造管速
度に同期して移動しながら管を所要の長さに切る走間定
尺切断装置に関するものである。ここでいう薄肉管と
は、板厚0.4〜1.0mm、直径60mm以上のもの
を対象にしている。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin-walled tube continuous production facility for continuously welding a butt portion while roll forming into a tubular shape using a metal strip such as stainless steel as a material. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous cutting device for directly cutting a pipe to a required length while moving in synchronization with a pipe forming speed. Here, the thin tube is intended for a tube having a thickness of 0.4 to 1.0 mm and a diameter of 60 mm or more.
【0002】[0002]
【従来の技術】従来の薄肉管連続製造設備における走間
定尺切断装置は、刃物として高速切断砥石や超硬チップ
ソー等を使用していた。すなわち、管を外側から切断す
るものであった。2. Description of the Related Art A conventional continuous cutting apparatus for continuously manufacturing thin-walled tubes uses a high-speed cutting grindstone or a carbide tip saw as a blade. That is, the tube was cut from the outside.
【0003】[0003]
【発明が解決しようとする課題】上記従来の造管定尺切
断加工によると、その切断によって生じる粉塵が作業場
内に飛散し、作業環境に問題があった。また、管の切断
面にバリが発生するため、そのバリを取って管の端面を
整えなければならなかった。たとえ、バリを除去したと
しても、管の外側からの切断では高精度の寸法を得るの
は難しいので、従来の定尺管は、定尺とはいうものの、
次の加工に入るに当たってトリミングを行うことを前提
にして、そのトリミングの分長めに切断されていた。換
言すれば、従来の薄肉管連続製造設備に直結の走間定尺
切断装置で得られる定尺管は、ラフカットされたもので
あった。According to the above-mentioned conventional pipe-forming fixed-size cutting, dust generated by the cutting is scattered in a work place, and there is a problem in a work environment. In addition, since burrs are generated on the cut surface of the pipe, it is necessary to remove the burrs and prepare the end face of the pipe. Even if burrs are removed, it is difficult to obtain high-precision dimensions by cutting from the outside of the tube.
Before starting the next processing, it was assumed that the trimming would be performed, and the cut was made longer than the trimming. In other words, the standard length tube obtained by the conventional constant length cutting device directly connected to the conventional thin-walled tube continuous manufacturing equipment has been roughly cut.
【0004】上記のように、従来の薄肉定尺管は、管メ
ーカーから購入して二次加工する場合はもちろん、二次
加工業者で内製する場合でも、二次加工に先立って長
さ、および端面をトリミングしなければならないから、
該素材管は、暫くの間保管場所に置くことになる。とこ
ろが、保管場所まで運ぶ時、また、その保管場所から二
次加工場に運ぶ時、あるいは、保管している間に、素材
管が変形したり、管に傷が付くことがある。[0004] As described above, conventional thin-walled fixed-length tubes are not only required for secondary processing by purchasing them from a tube manufacturer, but also when internally manufactured by a secondary processing company. And the end face must be trimmed,
The blank will be placed in storage for a while. However, the material pipe may be deformed or damaged when transported to the storage location, when transported from the storage location to the secondary processing site, or during storage.
【0005】本発明は、薄肉管連続製造設備に直結され
た従来の走間定尺切断装置における上記の問題点に鑑
み、精密切断によるトリミングの廃止、それによる工数
の削減、および切断作業環境の改善、走間定尺切断と二
次加工の連続化による保管場所の廃止、それにともなう
管の変形、損傷の防止、運送費の削減、および素材から
薄肉管連続製造を経て二次加工を終わるまでの時間の短
縮を目的とする。The present invention has been made in view of the above-mentioned problems in a conventional continuous-distance cutting device directly connected to a thin-walled tube continuous manufacturing equipment, and has eliminated trimming by precision cutting, thereby reducing the number of man-hours and reducing the cutting work environment. Improvement, elimination of storage space by continuous running cut and continuous processing, secondary pipe deformation and damage prevention, reduction of transportation costs, and continuous processing of raw material from thin-walled pipes to finishing secondary processing The aim is to reduce the time of
【0006】[0006]
【課題を解決するための手段】本発明は上記の目的を達
成するため、金属帯板をロールフォーミング装置で管状
に成形しながら突き合わせ部を溶接する薄肉管連続製造
設備に、走間定尺切断装置を直結し、該走間定尺切断装
置を、薄肉管連続製造設備から送り出されてくる連続管
に向かって進退する可動台と、可動台上を進退して該連
続管内に抜き差しされる回転刃付きパイプカッタと、可
動台に固定した管切断時に回転刃に対応する環状固定ダ
イスと、パイプカッタに設けた管切断時に連続管を内側
から環状固定ダイスに押圧するクランプと、可動台に設
けた管切断時から定尺管取り出し直前まで定尺管を外側
から固定するクランプと、可動台に設けた定尺管取出し
払出し装置とによって構成する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a thin-walled tube continuous manufacturing facility for welding a butt portion while forming a metal strip into a tubular shape by a roll forming apparatus. A movable table which is directly connected to the apparatus, and which moves the fixed length cutting apparatus during traveling toward and away from the continuous pipe sent out from the continuous thin-walled pipe manufacturing equipment; and a rotation which advances and retracts on the movable table to be inserted into and removed from the continuous pipe. A pipe cutter with a blade, an annular fixed die corresponding to the rotary blade when cutting a pipe fixed to the movable table, a clamp provided on the pipe cutter for pressing a continuous pipe from the inside to the annular fixed die when cutting the pipe, and provided on the movable table It comprises a clamp for fixing the fixed length tube from the outside from the time of cutting the tube to immediately before taking out the fixed length tube, and a fixed length tube removing / dispensing device provided on the movable table.
【0007】そして、(1)パイプカッタが連続管に進
入して回転刃が環状固定ダイスに対応すると、可動台お
よびパイプカッタの前進が停止し、(2)連続管の長さ
が定尺に達して定尺検知装置から切断信号を受けると、
可動台およびパイプカッタが連続管の速度に同期して後
退を始めるとともに、連続管の内外からクランプが働
き、(3)回転刃が連続管に切り込み、パイプカッタが
回転して回転刃と環状固定ダイスとで連続管を内側から
剪断し、(4)回転刃が引っ込み、環状固定ダイスに対
する連続管・定尺管の内側からのクランプが解放される
とともに、連続管・定尺管を外から固定しているクラン
プが可動台に対し瞬時後退して定尺管を連続管から僅少
距離引き離し、(5)可動台は、定尺管を外からクラン
プで固定したまま、連続管の速度に同期して後退を続け
るが、パイプカッタは可動台より速い速度に転じて後退
し、その間に定尺管取出し払出し装置が定尺管をつか
み、(6)パイプカッタが定尺管から脱出すると、定尺
管の外からのクランプが解放されて該クランプが原位置
に戻るとともに、定尺管取出し払出し装置が定尺管を取
出し、(7)可動台およびパイプカッタが前進に転じ、
パイプカッタは可動台よりも速い速度で前進して連続管
に進入し、(8)可動台およびパイプカッタの折り返し
から前進端で停止して次の切断信号を待つ間に、定尺管
取出し払出し装置が定尺管を走間定尺切断装置の外に払
出して原位置に復帰する、以上(1)〜(8)の動作を
繰り返すように走間定尺切断装置のシーケンス制御回路
を組んだものである。Then, (1) when the pipe cutter enters the continuous pipe and the rotary blade corresponds to the annular fixed die, advancement of the movable table and the pipe cutter stops, and (2) the length of the continuous pipe becomes a fixed length. When it reaches and receives a disconnection signal from the fixed length detection device,
The movable table and the pipe cutter start to retreat in synchronization with the speed of the continuous pipe, and a clamp works from inside and outside of the continuous pipe. (3) The rotary blade cuts into the continuous pipe, the pipe cutter rotates and the rotary blade and the rotary blade are fixed in an annular shape. The continuous pipe is sheared from the inside with the die, and (4) the rotary blade retracts, the clamp from the inside of the continuous pipe and the fixed pipe to the annular fixed die is released, and the continuous pipe and the fixed pipe are fixed from the outside. (5) The movable table synchronizes with the speed of the continuous pipe while keeping the fixed-length pipe clamped from the outside. The pipe cutter turns at a speed faster than the movable table and retreats. During this time, the fixed-length tube take-out / discharge device grabs the fixed length tube. (6) When the pipe cutter escapes from the fixed length tube, the fixed length Clamp from outside the tube With released by the clamp returns to the original position, taken out fixed-length tube Blank tube extraction dispenser, (7) the movable block and the pipe cutter turned forward,
The pipe cutter advances at a speed higher than that of the movable table and enters the continuous pipe. (8) While the movable table and the pipe cutter are turned off and stopped at the forward end, and waiting for the next cutting signal, the fixed-size pipe is taken out and discharged. A sequence control circuit of the constant-distance cutting device was set up so that the device pays out the constant-length tube out of the constant-distance cutting device and returns to the original position. The above operations (1) to (8) are repeated. Things.
【0008】また、上記の回転刃付きパイプカッタを、
基部を駆動機構部に片持ち且つ回転可能に支持した定尺
管より長い管状主体と、管状主体の軸心に支持した前後
両端が管状主体から突き出ている軸杆と、軸杆の前端の
案内体と、案内体の後方に配置した管切断時に連続管を
内側から環状固定ダイスに押圧するクランプ、およびそ
のクランプの操作機構と、クランプのすぐ後ろで管状主
体の前端に支持した1個ないし同一円周上に位置する複
数個の回転刃、およびその回転刃を内側から連続管に切
り込ませる操作機構とで構成し、上記駆動機構部に、ク
ランプ操作機構を作動させるために軸杆を直線往復動さ
せるシリンダと、回転刃切り込み操作機構を作動させる
ために軸杆を往復回動させるロータリシリンダと、連続
管に切り込んだ回転刃を管の円周方向に転動させるため
に管状主体を回転させるモータとを備えたものである。In addition, the above-mentioned pipe cutter with a rotary blade is
A tubular main body longer than a fixed length tube whose base is cantilevered and rotatably supported by the drive mechanism, a shaft rod supported on the axis of the tubular main body, the front and rear ends of which protrude from the tubular main body, and a guide of the front end of the shaft rod. Body, a clamp disposed behind the guide, which presses the continuous tube from the inside toward the annular fixed die when cutting the tube, and an operating mechanism of the clamp, and one or the same supported immediately after the clamp on the front end of the tubular main body A plurality of rotary blades located on the circumference, and an operating mechanism for cutting the rotary blades into the continuous pipe from the inside, and the drive mechanism portion includes a linear rod for operating the clamp operating mechanism. A cylinder that reciprocates, a rotary cylinder that reciprocates a shaft to operate a rotary blade cutting operation mechanism, and a tubular main body that rotates a rotary blade cut into a continuous pipe in the circumferential direction of the pipe It is obtained by a motor for.
【0009】連続管の長さが定尺に達したとき切断信号
を発する定尺検知装置として、該連続管の速度を連続的
に計測する非接触式速度計を備え、その速度から演算さ
れる長さ値が定尺値に達する時点ごとに、走間定尺切断
装置に切断信号を発信するように構成したものである。A non-contact type speed meter for continuously measuring the speed of the continuous pipe is provided as a fixed length detecting device for issuing a cutting signal when the length of the continuous pipe reaches a predetermined length, and the speed is calculated from the speed. Each time the length value reaches the fixed length value, a cutting signal is transmitted to the running distance fixed length cutting device.
【0010】[0010]
【発明の実施の形態】本発明に係る薄肉管連続製造設備
の走間定尺切断装置の具体的構造、並びに作用を図にし
たがって説明する。図1は薄肉管連続製造設備の全体を
示す略図で、1はアンコイラ、2はロールフォーミング
等の薄肉管連続成形装置、3はTIG溶接等のシーム溶
接装置、4はクローラ式フィーダ等の移送装置、5は定
尺検知装置、6は走間定尺切断装置である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The concrete structure and operation of a constant-length cutting apparatus for continuous running thin-walled tubes according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing the entire thin-walled tube continuous manufacturing equipment, 1 is an uncoiler, 2 is a thin-walled tube continuous forming device such as roll forming, 3 is a seam welding device such as TIG welding, and 4 is a transfer device such as a crawler type feeder. Reference numeral 5 is a fixed-length detecting device, and reference numeral 6 is a fixed-length cutting device during running.
【0011】ステンレス鋼等の帯板のコイル材cはアン
コイラ1に支持され、そのアンコイラ1から順次解きほ
ぐされ、移送装置4の作動で供給される帯板材mは、薄
肉管連続成形装置2を通過する間に次第に管状に成形さ
れ、続いて溶接装置3で突き合わせ部が連続溶接され
る。出来上がってくる連続管pは冷却され、定尺検知装
置5を経て走間定尺切断装置6に至る。定尺検知装置5
は、連続管pの送り速度に影響を与えないように、レー
ザー・ドップラーを可とする非接触式速度計を用い、計
測速度から演算される長さ値が定尺値になるごとに切断
命令の信号を発するように構成されている。移送装置4
は、上記溶接装置3より後方で完成した連続管pをつか
んで牽引するように配置されている。走間定尺切断装置
6の脇に、該切断装置6から払い出される定尺管Pのた
めの受台7が配置されている。A coil material c of a strip of stainless steel or the like is supported by the uncoiler 1, unraveled from the uncoiler 1, and supplied by the operation of the transfer device 4. While passing, it is gradually formed into a tubular shape, and then the butt portion is continuously welded by the welding device 3. The completed continuous pipe p is cooled, and reaches a running distance cutting device 6 via the measuring device 5. Standard size detection device 5
Uses a non-contact type speed meter that enables laser Doppler so as not to affect the feed speed of the continuous pipe p, and a cutting command is issued every time the length value calculated from the measured speed becomes a fixed value. Is generated. Transfer device 4
Is arranged so as to grasp and pull the completed continuous pipe p behind the welding device 3. A pedestal 7 for the fixed length pipe P discharged from the cutting device 6 is arranged beside the running distance fixed length cutting device 6.
【0012】図2は走間定尺切断装置6の正面図であ
る。基台8の上に、送り出される連続管pに向かって進
退する可動台9が載っている。該可動台9の造管設備側
端部に、連続管pを囲むように環状固定ダイス10が取
付枠10Aを介して設置されている。11は基台8に固
定の連続管支持ガイドである。連続管pは環状固定ダイ
ス10の位置で切断される。該ダイス10に続いて、連
続管pを切断する際、また、切断後の定尺管Pをつかむ
クランプ12が設置されている。該クランプ12は、可
動台9に対し管方向に僅少距離往復動する台13に取付
けられている。FIG. 2 is a front view of the running distance cutting device 6. On the base 8, there is a movable base 9 which moves forward and backward toward the continuous pipe p to be sent out. At the end of the movable base 9 on the pipe making facility side, an annular fixed die 10 is installed via a mounting frame 10A so as to surround the continuous pipe p. Reference numeral 11 denotes a continuous pipe support guide fixed to the base 8. The continuous pipe p is cut at the position of the annular fixed die 10. Subsequent to the die 10, when cutting the continuous pipe p, a clamp 12 for holding the cut fixed length pipe P is provided. The clamp 12 is mounted on a table 13 which reciprocates a small distance in the pipe direction with respect to the movable table 9.
【0013】上記可動台9は、基台8に設置したサーボ
モータ14(図4・図5参照)を駆動源とし、ピニオン
・ラック等の伝動機構15を介して造管速度に同期して
進退動する。サーボモータ14は可動台9側に備えるこ
ともある。上記クランプ12はプライヤ形(図6参照)
のもので、直線往復動シリンダ16によって動作する。
クランプ取付台13の僅少距離往復動は、可動台9に備
えた直線往復動シリンダ17によって動作する。The movable base 9 uses a servomotor 14 (see FIGS. 4 and 5) installed on the base 8 as a driving source, and advances and retreats in synchronization with a pipe-forming speed via a transmission mechanism 15 such as a pinion rack. Move. The servo motor 14 may be provided on the movable base 9 side. The clamp 12 is a pliers type (see FIG. 6).
, And is operated by a linear reciprocating cylinder 16.
The small distance reciprocation of the clamp mounting base 13 is operated by a linear reciprocating cylinder 17 provided on the movable base 9.
【0014】そして可動台9の上に、上記連続管pの中
に抜き差し移動する回転刃33(図7参照)付きのパイ
プカッタ19が台20を介して載っている。回転刃付き
パイプカッタ19は、該パイプカッタ19に設置したサ
ーボモータ21(図4・図5参照)を駆動源とし、ピニ
オン・ラック等の伝動機構22を介して進退動する。サ
ーボモータ21は可動台9側に備えることもある。A pipe cutter 19 with a rotary blade 33 (see FIG. 7) which moves in and out of the continuous pipe p is mounted on the movable base 9 via the base 20. The rotary bladed pipe cutter 19 is driven by a servomotor 21 (see FIGS. 4 and 5) installed on the pipe cutter 19 and moves forward and backward via a transmission mechanism 22 such as a pinion rack. The servo motor 21 may be provided on the movable base 9 side.
【0015】図7、図8、図9にしたがって回転刃付き
パイプカッタ19の詳細構成を説明する。上記台20の
上に、後述の駆動機構の取付け枠を兼ねる軸受け枠23
・23が前後一対(図2、図3、図4参照)設けられて
いる。この軸受け枠23・23に、回転刃付きパイプカ
ッタ19の主要部を成す定尺管Pより長い管状主体24
の基部が回転可能に支持されている。すなわち、管状主
体24が造管側に突き出すように片持ち支持されてい
る。The detailed configuration of the pipe cutter 19 with a rotary blade will be described with reference to FIGS. A bearing frame 23 also serving as a mounting frame for a drive mechanism described later is placed on the base 20.
A pair of front and rear 23 is provided (see FIGS. 2, 3, and 4). In this bearing frame 23, a tubular main body 24 longer than the fixed length pipe P forming the main part of the pipe cutter 19 with a rotary blade is provided.
Is rotatably supported. That is, the tubular main body 24 is cantilevered so as to protrude toward the pipe forming side.
【0016】上記管状主体24の軸心に沿って軸杆25
が僅少距離だけ往復動可能に支持されており、その軸杆
25の前後両端は管状主体24の各端面から突き出てい
る。そして、軸杆25の前端に、回転刃付きパイプカッ
タ19が連続管pに抜き差しされるときの案内をする椀
形の案内体26が付いている。その案内体26の後方
に、管切断時に連続管pを内側から前記環状固定ダイス
10に押圧するクランプ27が設けられている。An axial rod 25 extends along the axis of the tubular main body 24.
Are supported so as to be able to reciprocate a small distance, and the front and rear ends of the shaft 25 protrude from the respective end faces of the tubular main body 24. A bowl-shaped guide 26 is provided at the front end of the shaft 25 to guide the pipe cutter 19 with the rotary blade when the pipe cutter 19 is inserted into or removed from the continuous pipe p. Behind the guide body 26, a clamp 27 for pressing the continuous pipe p from the inside toward the annular fixed die 10 at the time of cutting the pipe is provided.
【0017】上記クランプ27はシーソー形をしたレバ
ーから成り、軸杆25と平行の方向を向いて円周上等間
隔に複数個(少なくとも3個を可とする)配置され、軸
杆25に支持されて軸方向には動かないが円周方向には
動く環状部材28に取付けられている。該環状部材28
は、中心に軸杆25を通し、管状主体24の前端面から
突き出た一対の支持杆29(図7参照)の先に設けられ
た部材30を介して軸杆25に支持されている。The clamps 27 are made of seesaw-shaped levers, and are arranged in plural (at least three are allowed) at equal intervals on the circumference in a direction parallel to the shaft 25 and supported by the shaft 25. It is mounted on an annular member 28 which does not move in the axial direction but moves in the circumferential direction. The annular member 28
Is supported by the shaft 25 via a member 30 provided at the end of a pair of support bars 29 (see FIG. 7) projecting from the front end surface of the tubular main body 24 through the center of the shaft 25.
【0018】各クランプ27の力点端に共通に作用する
緊締用直線往復動カム31と戻し用直線往復動カム32
が椀形案内体26に包囲され、椀形案内体26と共に軸
杆25に、軸方向には動かないが円周方向には動くよう
に取付けられている。The tightening linear reciprocating cam 31 and the returning linear reciprocating cam 32 commonly acting on the end of the force point of each clamp 27.
Are enclosed by a bowl-shaped guide 26 and are mounted on the shaft 25 together with the bowl-shaped guide 26 so as not to move in the axial direction but to move in the circumferential direction.
【0019】上記クランプ27の直後に、複数個(図示
例は2個)の回転刃33が同一円周上等間隔に配置され
ている。回転刃33は1個の場合もある。管状主体24
の前端面から突き出た前記環状部材28の支持杆29
(図7参照)を軸としてレバー34が支持されており、
回転刃33は、該レバー34の自由端に支持した軸35
の端に取付けられている。前記軸杆25にレバー36を
キー、またはスプライン37を介して一体回動且つ軸方
向相対移動可能に取付け、上記両レバー34・36の自
由端どうしをリンク38で連結している。Immediately after the clamp 27, a plurality (two in the illustrated example) of rotary blades 33 are arranged at equal intervals on the same circumference. The number of the rotary blades 33 may be one. Tubular body 24
Of the annular member 28 protruding from the front end face of the
The lever 34 is supported around an axis (see FIG. 7),
The rotary blade 33 has a shaft 35 supported on the free end of the lever 34.
Attached to the end of the A lever 36 is attached to the shaft rod 25 via a key or a spline 37 so as to be integrally rotatable and relatively movable in the axial direction, and the free ends of the levers 34 and 36 are connected by a link 38.
【0020】39は管状主体24内において軸杆25の
途中に設けたカップリングで、構造および加工上の利便
と、軸杆先端部のクランプ、および切断機構部分に、軸
杆駆動機構部(後述の直線往復動シリンダ40、ロータ
リシリンダ41、モータ44等)から軸杆25を経て熱
が伝わるのを阻止するために介入したものである。軸杆
25の突き出し基端と軸受け枠23との間に、軸杆25
を押し引きする直線往復動シリンダ40が、また、軸杆
25と管状主体24の間に、軸杆25を往復回動させる
例えばベーン形揺動モータ等のロータリシリンダ41が
設けられている。そのロータリシリンダ41の回転体4
2と軸杆25は、キー、またはスプライン43を介して
結合されている。軸受け枠23に搭載したモータ44の
プーリ45と、管状主体24の外周面に形成したプーリ
46とにベルト47を巻き回している。Reference numeral 39 denotes a coupling provided in the tubular main body 24 in the middle of the shaft 25, for convenience in structure and processing, and for clamping and cutting at the shaft end, and a shaft driving mechanism (described later). Of the linear reciprocating cylinder 40, rotary cylinder 41, motor 44, etc.) through the shaft 25 to prevent heat from being transmitted. Between the protruding base end of the shaft 25 and the bearing frame 23, the shaft 25
And a rotary cylinder 41 such as, for example, a vane-type oscillating motor for reciprocating the shaft 25 between the shaft 25 and the tubular main body 24. The rotating body 4 of the rotary cylinder 41
The shaft 2 and the shaft 25 are connected via a key or a spline 43. A belt 47 is wound around a pulley 45 of a motor 44 mounted on the bearing frame 23 and a pulley 46 formed on the outer peripheral surface of the tubular main body 24.
【0021】前記レバー34の自由端に対する回転刃3
3の取付け構造について説明する。回転刃取付軸35の
取付側に形成した雄ねじ48にロックナット49 ・5
0をねじ込み、雄ねじ48の部分に回転刃33嵌める。
続いて取付軸35の端面に、該刃33の環状固定ダイス
10に対する位置決め兼抜け止め座金51を当て、該座
金51を貫いて軸端面にねじ込んだ押えねじ18で上記
座金51を固定している。回転刃33の刃先と環状固定
ダイス10とのクリアランスは、刃先の研磨によって漸
次変化するが、回転刃33が位置決め兼抜け止め座金5
1に当たるようにナット49・50の位置を調節し、且
つその位置でナット49・50をロックすることによ
り、上記クリアランスを常に適性値に維持できる。The rotary blade 3 with respect to the free end of the lever 34
The mounting structure of No. 3 will be described. Lock nuts 49 and 5 are attached to male threads 48 formed on the mounting side of the rotary blade mounting shaft 35.
0 is screwed in, and the rotary blade 33 is fitted into the male screw 48.
Subsequently, a positioning washer 51 for positioning and holding the blade 33 with respect to the annular fixed die 10 is applied to the end face of the mounting shaft 35, and the washer 51 is fixed by the presser screw 18 that has passed through the washer 51 and screwed into the shaft end face. . The clearance between the cutting edge of the rotary blade 33 and the annular fixed die 10 gradually changes due to the polishing of the cutting edge.
By adjusting the positions of the nuts 49 and 50 so as to hit 1 and locking the nuts 49 and 50 at that position, the clearance can always be maintained at an appropriate value.
【0022】前記可動台9に、図2・図4・図5に示す
ように、門形の機枠52を介して定尺管取出し払出し装
置53が回転刃付きパイプカッタ19を跨ぐように設け
られている。定尺管取出し払出し装置53は、定尺管P
をつかむ一対のクランプ54を持っている。該クランプ
54の開閉動作は直線往復動シリンダ55によって行わ
れる。そして、クランプ54を昇降させるための直線往
復動シリンダ56、クランプ54の上昇状態でクランプ
54を取出し位置と払出し位置の間を往復させるための
チェーンまたはベルト伝動装置57を備えている。チェ
ーンまたはベルト伝動装置57は、油圧等による直線往
復動シリンダでもよい。定尺管払出し位置の下に、緩く
傾斜したシュータとして機能する受台7が設置されてい
る。As shown in FIGS. 2, 4, and 5, a fixed-length tube take-out and discharge device 53 is provided on the movable base 9 via a portal-shaped machine frame 52 so as to straddle the pipe cutter 19 with a rotary blade. Have been. The fixed-length tube take-out and discharge device 53 is a fixed-length tube P
Has a pair of clamps 54 for grasping. The opening and closing operation of the clamp 54 is performed by a linear reciprocating cylinder 55. A linear reciprocating cylinder 56 for raising and lowering the clamp 54 and a chain or belt transmission 57 for reciprocating the clamp 54 between the take-out position and the pay-out position when the clamp 54 is in the up state are provided. The chain or belt transmission 57 may be a linear reciprocating cylinder using hydraulic pressure or the like. A pedestal 7 that functions as a gently inclined shooter is provided below the fixed-length tube payout position.
【0023】可動台進退用サーボモータ14、および回
転刃付きパイプカッタ進退用サーボモータ21をオンオ
フおよび正逆切り換えスイッチ、パイプカッタの管状主
体24を回すモータ44のオンオフスイッチ、伝動装置
57の駆動モータ等をオンオフするスイッチを備えてい
る。A switch for turning on / off and forward / reverse the servomotor 14 for moving the movable table forward and backward, and the servomotor 21 for moving and retracting the pipe cutter with a rotary blade, an on / off switch for the motor 44 for rotating the tubular main body 24 of the pipe cutter, and a driving motor for the transmission 57 It has a switch for turning on and off.
【0024】また、クランプ12・54を開閉する直線
往復動シリンダ16・55、クランプ54を昇降させる
直線往復動シリンダ56、僅少距離往復動台13を駆動
する直線往復動シリンダ17、パイプカッタの軸杆25
を進退駆動する直線往復動シリンダ40、該軸杆25を
往復回動するロータリシリンダ41等の各シリンダに対
する油圧を制御するためのソレノイド弁を備えている。
各シリンダは共通1台の油圧ユニットに通じている。そ
して、次に説明する自動動作が順序を追って行われるよ
うに、上記の各スイッチ、および各ソレノイド弁のスイ
ッチを結んだシーケンス制御回路が組まれている。The linear reciprocating cylinders 16 and 55 for opening and closing the clamps 12 and 54, the linear reciprocating cylinder 56 for raising and lowering the clamp 54, the linear reciprocating cylinder 17 for driving the reciprocating table 13 for a short distance, and the shaft of the pipe cutter. Rod 25
And a solenoid valve for controlling the hydraulic pressure for each cylinder such as a rotary cylinder 41 for reciprocatingly rotating the shaft 25.
Each cylinder communicates with one common hydraulic unit. Then, a sequence control circuit connecting the above switches and the switches of the respective solenoid valves is assembled so that the automatic operations described below are performed in order.
【0025】本発明に係る走間定尺切断装置の一連の自
動動作を、図2〜図9の構造、動作を示す図、および図
10のタイムチャートを参照して説明する。造管されて
送り出されてくる連続管pに向かって可動台9・回転刃
付きパイプカッタ19が一体で前進してくる。連続管p
は移動を続けている。A series of automatic operations of the constant distance cutting device according to the present invention will be described with reference to the structures and operations of FIGS. 2 to 9 and a time chart of FIG. The movable table 9 and the pipe cutter 19 with a rotary blade integrally advance toward the continuous pipe p which is formed and sent out. Continuous pipe p
Continues to move.
【0026】(1)上記パイプカッタ19が連続管pに
進入し、回転刃33が環状固定ダイス10に対する切断
対応位置に到達すると、その位置をリミットスイッチが
検知してモータ14・21を止め、可動台9、および回
転刃付きパイプカッタ19の前進が停止して切断信号を
待つている。(1) When the pipe cutter 19 enters the continuous pipe p and the rotary blade 33 reaches a position corresponding to the cutting with respect to the annular fixed die 10, the position is detected by the limit switch, and the motors 14 and 21 are stopped. The advance of the movable base 9 and the pipe cutter 19 with the rotary blade is stopped, and the cutting stand signal is awaited.
【0027】(2)連続管pの長さが定尺に達すると定
尺検知装置5が切断信号を発し、これを可動台進退用サ
ーボモータ14が受けて逆転を始め、可動台9が連続管
pの速度に同期して後退し始める。また、可動台9の後
退開始直後、管pの内外にクランプ27・12が同時に
働く。の内側のクランプ27は、図7に示すように、上
記切断信号で作動するシリンダ40の作動により、軸杆
25を介してカム31・32が図で左方に動きクランプ
27の力点側に作用する。そうするとクランプ27の作
用点側が起きて管pを内面から固定ダイス10に押し付
ける。同時に外側のクランプ12は、図2・図6に示す
ように、上記切断信号で作動する別のシリンダ16の作
用によって閉じて管pをつかむ。(2) When the length of the continuous pipe p reaches a fixed length, the fixed length detecting device 5 generates a cutting signal, which is received by the movable base advance / retreat servomotor 14 to start reverse rotation, and the movable base 9 is continuously operated. It begins to retreat in synchronization with the speed of tube p. Immediately after the start of the retreat of the movable base 9, the clamps 27 and 12 simultaneously work inside and outside the pipe p. As shown in FIG. 7, the cams 31 and 32 move leftward in FIG. 7 via the shaft 25 and act on the power point side of the clamp 27 by the operation of the cylinder 40 operated by the cutting signal as shown in FIG. I do. Then, the action point side of the clamp 27 is raised, and the pipe p is pressed against the fixed die 10 from the inner surface. At the same time, the outer clamp 12 closes and grips the pipe p by the action of another cylinder 16 activated by the cutting signal, as shown in FIGS.
【0028】(3)クランプ27・12で管pを内外か
ら固定すると、図7、図8に示すように、ロータリシリ
ンダ41の作動により、軸杆25を介してレバー36が
振れ、リンク38を介して回転刃支持レバー34の回転
刃側端部を図9のように外方に押し出し、回転刃33が
連続管pに切り込む。続いてモータ44が回り、プーリ
45、ベルト47、プーリ46を介して連動する管状主
体24は、連続管pに切り込んだ状態の回転刃33を伴
って一定角度(図の場合、回転刃33は2個であるから
半回転)回動し、連続管pは、回転刃33と環状固定ダ
イス10とで内側から切断されて定尺管Pが得られる。(3) When the pipe p is fixed from inside and outside by the clamps 27 and 12, the lever 36 swings through the shaft 25 by the operation of the rotary cylinder 41 as shown in FIGS. The rotary blade side end of the rotary blade support lever 34 is pushed outward as shown in FIG. 9, and the rotary blade 33 cuts into the continuous pipe p. Subsequently, the motor 44 rotates, and the tubular main body 24 interlocked via the pulley 45, the belt 47, and the pulley 46 has a fixed angle with the rotary blade 33 cut into the continuous pipe p (in the case of the figure, the rotary blade 33 is (Since it is two, it rotates by half a turn), and the continuous pipe p is cut from the inside by the rotary blade 33 and the annular fixed die 10 to obtain a fixed length pipe P.
【0029】(4)回転切断が終わると、クランプ12
が定尺管Pをつかんだまま可動台9に対し瞬時後退して
定尺管Pを連続管pから僅少距離引き離し、ロータリシ
リンダ41の逆転で回転刃33が引っ込むと同時に、シ
リンダ40が作動してカム31・32が図で右方に動
き、クランプ27の環状固定ダイスに対する連続管pの
内側からのクランプ作用が解かれる。なお、可動台9の
同期後退開始(前記(2)項)から上記クランプ解放時
点までの間、連続管pのクランプ且つ切断位置保持のた
め、パイプカッタ19に前進負荷を掛けている。すなわ
ち、パイプカッタ駆動用モータ21は前進側に回転した
ままである。(4) When the rotational cutting is completed, the clamp 12
Momentarily retracts with respect to the movable base 9 while holding the fixed length tube P, pulls the fixed length tube P away from the continuous tube p by a small distance, and at the same time the rotary blade 33 retracts due to the reverse rotation of the rotary cylinder 41, the cylinder 40 operates. As a result, the cams 31 and 32 move rightward in the figure, and the clamping action of the clamp 27 from the inside of the continuous pipe p to the annular fixed die is released. During the period from the start of the synchronous retreat of the movable base 9 (the above item (2)) to the time point when the clamp is released, a forward load is applied to the pipe cutter 19 in order to clamp the continuous pipe p and hold the cutting position. That is, the pipe cutter driving motor 21 is kept rotating forward.
【0030】(5)可動台9は、定尺管Pをクランプ1
2でつかんだまま、連続管pの造管速度に同期して後退
を続けているが、上記クランプ27の解放と同時に、パ
イプカッタ駆動用モータ21は逆転に転じ、可動台9と
一体で後退していたパイプカッタ19は、可動台9より
速い速度で後退を始める。同時に、定尺管取出し払出し
装置53のシリンダ56、およびシリンダ55の作動で
クランプ54が降りてきて定尺管Pをつかむ。(5) The movable table 9 clamps the fixed length tube P to the clamp 1
While holding at 2, the pipe cutter driving motor 21 continues to retreat in synchronism with the pipe forming speed of the continuous pipe p. The pipe cutter 19 starts moving backward at a speed higher than that of the movable base 9. At the same time, the clamp 54 is lowered by the operation of the cylinder 56 and the cylinder 55 of the fixed length tube take-out and discharge device 53, and the fixed length tube P is gripped.
【0031】(6)図3のように、パイプカッタ19が
定尺管Pから抜け出ると、あるいは、抜ける直前に定尺
管Pの外からのクランプ12が解放され、また、該クラ
ンプ12が僅少距離前進して原位置に戻るとともに、定
尺管取出し払出し装置53のクランプ54が上昇して定
尺管Pを取出す。(6) As shown in FIG. 3, when the pipe cutter 19 comes out of the standard length tube P, or immediately before the pipe cutter 19 comes out, the clamp 12 from outside the standard length tube P is released, and the clamp 12 is slightly reduced. After moving forward by a distance and returning to the original position, the clamp 54 of the fixed-length tube removing / dispensing device 53 rises and removes the fixed-length tube P.
【0032】(7)定尺管Pが取出されると、可動台9
およびパイプカッタ19が前進に転じ、パイプカッタ1
9は可動台9よりも速い速度で前進して連続管pに進入
する。前進終端で付近でパイプカッタ駆動用モータ21
は減速回転する。(7) When the fixed length tube P is taken out, the movable table 9
And the pipe cutter 19 turns forward, and the pipe cutter 1
9 advances at a higher speed than the movable base 9 and enters the continuous pipe p. Pipe cutter driving motor 21 near the forward end
Rotates at a reduced speed.
【0033】(8)可動台9およびパイプカッタ19が
前進端(回転刃33が環状固定ダイス10に対応した前
記(1)と同じ時点)に達すると、可動台9およびパイ
プカッタ19は停止する。そして次の切断信号を待つ間
に、定尺管取出し払出し装置53が定尺管Pを走間定尺
切断装置6の外に払出して原位置に復帰する。すなわ
ち、定尺管Pをつかみ上げているクランプ54が伝動装
置57、およびシリンダ56の作動で払出し位置に移動
且つ下降し、シリンダ55が作動してクランプ54を開
き、定尺管Pを受台7の上に降ろす。定尺管Pを放した
クランプ54は、シリンダ56の作動で直ちに上昇し、
更に伝動装置57の作動で取出し位置の上方に戻る。上
記(1)〜(8)の一連の動作が繰り返し自動運転され
る。本発明装置の実施適応範囲は、前記したように、板
厚0.4〜1.0mm、直径60mm以上の薄肉管であ
るが、具体的には、板厚0.4mm、直径110mmの
ステンレスパイプに実施して効果があった。(8) When the movable table 9 and the pipe cutter 19 reach the forward end (the same time as in (1) above in which the rotary blade 33 corresponds to the annular fixed die 10), the movable table 9 and the pipe cutter 19 stop. . Then, while waiting for the next cutting signal, the fixed-length tube removing / dispensing device 53 discharges the constant-length tube P to the outside of the traveling fixed-length cutting device 6 and returns to the original position. That is, the clamp 54 grasping the fixed length tube P moves to the dispensing position by the operation of the transmission 57 and the cylinder 56 and moves down, the cylinder 55 is operated to open the clamp 54, and the fixed length tube P Lower on 7. The clamp 54 that has released the fixed length tube P immediately rises by the operation of the cylinder 56,
Further, the transmission 57 returns to the position above the take-out position by the operation of the transmission 57. The series of operations (1) to (8) are repeatedly and automatically operated. As described above, the applicable range of the apparatus of the present invention is a thin pipe having a thickness of 0.4 to 1.0 mm and a diameter of 60 mm or more. Specifically, a stainless steel pipe having a thickness of 0.4 mm and a diameter of 110 mm is used. Was effective.
【0034】[0034]
【発明の効果】本発明の薄肉管連続製造設備における走
間定尺切断装置は以上の構成であるから、従来の管の外
面からの鋸断による走間定尺切断機に比べて切断装置が
小型、軽量にまとまり、造管工程に抵抗を与えることが
ないため高精度の切断ができ、トリミングの必要もなく
て、定尺管を得るのに必要な工数の削減、且つ切断作業
環境の改善ができる。また、造管工程に抵抗を与えない
ことは、造管速度のバラツキをなくして溶接部に穴明き
を生じさせない利点もある。そして、走間定尺切断後、
その定尺管を直ちに二次加工に移すことができるので、
定尺管保管場所の廃止、それにともなう定尺管の変形・
損傷の防止、運送費の削減、および素材から薄肉管連続
製造を経て二次加工を終わるまでの全工程の時間を短縮
できる効果がある。As described above, the continuous-distance cutting device in the thin-walled tube continuous manufacturing equipment of the present invention has the above-mentioned configuration. It is small and light, and can cut with high precision because it does not add resistance to the pipe making process. There is no need for trimming, reducing the man-hour required to obtain a fixed length tube and improving the cutting work environment. Can be. Further, not giving resistance to the pipe forming step has an advantage that a variation in a pipe forming speed is eliminated and a hole is not generated in a welded portion. And after cutting the fixed length between runs,
Since the standard length tube can be immediately transferred to secondary processing,
Elimination of storage space for fixed length tubes, accompanying deformation of fixed length tubes
This has the effect of preventing damage, reducing transportation costs, and shortening the time required for all processes from raw material through continuous production of thin-walled tubes to completion of secondary processing.
【図1】本発明に係る走間定尺切断装置を含む薄肉管連
続製造設備の概略図FIG. 1 is a schematic diagram of a thin-walled tube continuous production facility including a constant-distance cutting device according to the present invention.
【図2】回転刃付きパイプカッタが連続管に進入してい
る状態の走間定尺切断装置の正面図FIG. 2 is a front view of the constant distance cutting device in a state where a pipe cutter with a rotary blade enters a continuous pipe.
【図3】回転刃付きパイプカッタが連続管から出て、定
尺管を取出した状態の走間定尺切断装置の正面図FIG. 3 is a front view of a running-length cutting apparatus in a state in which a pipe cutter with a rotary blade comes out of a continuous pipe and a fixed-length pipe is taken out.
【図4】回転刃付きパイプカッタが連続管に進入してい
る状態(図2)の走間定尺切断装置の平面図FIG. 4 is a plan view of the constant distance cutting device in a state where a pipe cutter with a rotary blade has entered a continuous pipe (FIG. 2).
【図5】走間定尺切断装置の左側面図FIG. 5 is a left side view of the running distance cutting device.
【図6】定尺管クランプ機構部分の右側面図FIG. 6 is a right side view of a fixed length tube clamping mechanism.
【図7】回転刃付きパイプカッタと環状固定ダイスの縦
断面図FIG. 7 is a longitudinal sectional view of a pipe cutter with a rotary blade and an annular fixed die.
【図8】回転刃部分の横断面図(切り込み前の状態)FIG. 8 is a cross-sectional view of the rotary blade portion (state before cutting).
【図9】回転刃部分の横断面図(切り込んだ状態)FIG. 9 is a cross-sectional view of the rotary blade portion (in a cut state).
【図10】走間定尺切断装置の自動動作を説明するタイ
ムチャートFIG. 10 is a time chart for explaining the automatic operation of the running distance cutting device.
1 アンコイラ 2 薄肉管連続成形装置 3 シーム溶接装置 4 移送装置 5 定尺検知装置(非接触式速度計) 6 走間定尺切断装置 9 可動台 10 環状固定ダイス 19 パイプカッタ 24 管状主体 25 軸杆 26 案内体 27 管の内側に作用するクランプ 33 回転刃 40 軸杆を直線往復動させるシリンダ 41 軸杆を往復回動させるロータリシリンダ 44 管状主体を回転させるモータ 53 定尺管取出し払出し装置 54 管の外側に作用するクランプ p 連続管 P 定尺管 REFERENCE SIGNS LIST 1 Uncoiler 2 Continuous thin-wall tube forming device 3 Seam welding device 4 Transfer device 5 Constant-size detecting device (non-contact type speedometer) 6 Constant-running cutting device 9 Movable table 10 Annular fixed die 19 Pipe cutter 24 26 Guide Body 27 Clamp Acting on Inside of Pipe 33 Rotating Blade 40 Cylinder for Reciprocating Shaft Linearly 41 Rotary Cylinder for Reciprocating Shaft Rod 44 Motor for Rotating Tubular Main Body 53 Standard-Pipe Removal and Dispensing Device 54 Clamps acting on the outside p Continuous tube P Fixed length tube
Claims (10)
に成形しながら突き合わせ部を溶接する薄肉管連続製造
設備に、走間定尺切断装置が直結され、走間定尺切断装
置は、薄肉管連続製造設備から送り出されてくる連続管
に向かって進退する可動台と、可動台上を進退して該連
続管内に抜き差しされる回転刃付きパイプカッタと、可
動台に固定した管切断時に回転刃に対応する環状固定ダ
イスと、パイプカッタに設けた管切断時に連続管を内側
から環状固定ダイスに押圧するクランプと、可動台に設
けた管切断時から定尺管取り出し直前まで定尺管を外側
から固定するクランプと、可動台に設けた定尺管取出し
払出し装置とで構成され、(1)パイプカッタが連続管
に進入して回転刃が環状固定ダイスに対応すると、可動
台およびパイプカッタの前進が停止し、(2)連続管の
長さが定尺に達して定尺検知装置から切断信号を受ける
と、可動台およびパイプカッタが連続管の速度に同期し
て後退を始めるとともに、連続管の内外からクランプが
働き、(3)回転刃が連続管に切り込み、パイプカッタ
が回転して回転刃と環状固定ダイスとで連続管を内側か
ら剪断し、(4)定尺管を外から固定しているクランプ
が可動台に対し瞬時後退して定尺管を連続管から僅少距
離引き離すとともに、回転刃が引っ込み、環状固定ダイ
スに対する連続管の内側からのクランプが解放され、
(5)可動台は、定尺管を外からクランプで固定したま
ま、連続管の速度に同期して後退を続けるが、パイプカ
ッタは可動台より速い速度に転じて後退し、その間に定
尺管取出し払出し装置が定尺管をつかみ、(6)パイプ
カッタが定尺管から脱出すると、定尺管の外からのクラ
ンプが解放されて該クランプが原位置に戻るとともに、
定尺管取出し払出し装置が定尺管を取出し、(7)可動
台およびパイプカッタが前進に転じ、パイプカッタは可
動台よりも速い速度で前進して連続管に進入し、(8)
可動台およびパイプカッタの折り返しから前進端で停止
して次の切断信号を待つ間に、定尺管取出し払出し装置
が定尺管を走間定尺切断装置の外に払出して原位置に復
帰する、以上(1)〜(8)の動作を繰り返すようにシ
ーケンス制御回路が構成されていることを特徴とする薄
肉管連続製造設備における走間定尺切断装置。An apparatus for continuously cutting a thin-walled tube, which welds a butt portion while forming a metal strip into a tubular shape by a roll forming device, is directly connected to a continuous-running constant-length cutting device. A movable table which advances and retreats toward a continuous pipe sent out from a continuous manufacturing facility, a pipe cutter with a rotary blade which advances and retreats on the movable table and is inserted into and removed from the continuous pipe; and a rotary blade which is fixed to the movable table when cutting a pipe. An annular fixed die corresponding to, a clamp provided on the pipe cutter to press the continuous pipe against the annular fixed die from the inside when cutting the pipe, and a fixed-length pipe outside from the time of cutting the pipe provided on the movable base to just before taking out the fixed-length pipe (1) When the pipe cutter enters the continuous pipe and the rotary blade corresponds to the annular fixed die, the movable table and the pipe cutter are fixed. (2) When the length of the continuous tube reaches a fixed length and a cutting signal is received from the fixed length detecting device, the movable table and the pipe cutter start retreating in synchronization with the speed of the continuous tube. (3) The rotating blade cuts into the continuous tube, the pipe cutter rotates, and the continuous blade is sheared from the inside by the rotating blade and the annular fixed die. The clamp fixed from the outside retreats instantaneously with respect to the movable table, pulls the fixed length tube from the continuous tube a small distance, the rotating blade retracts, and the clamp from the inside of the continuous tube to the annular fixed die is released,
(5) The movable table continues to retreat in synchronization with the speed of the continuous pipe while the fixed-length tube is fixed from outside by a clamp. (6) When the pipe take-out / discharge device grasps the fixed length tube and the pipe cutter escapes from the fixed length tube, the clamp from outside the fixed length tube is released, and the clamp returns to the original position.
(7) The movable table and the pipe cutter turn forward, the pipe cutter advances at a higher speed than the movable table, and enters the continuous pipe. (8)
While stopping at the forward end from the return of the movable table and the pipe cutter, and waiting for the next cutting signal, the fixed-length tube removing / dispensing device dispenses the constant-length tube out of the traveling constant-length cutting device and returns to the original position. And a sequence cutting circuit in a thin-walled tube continuous manufacturing facility, wherein a sequence control circuit is configured to repeat the above operations (1) to (8).
に成形しながら突き合わせ部を溶接する薄肉管連続製造
設備に、走間定尺切断装置が直結され、走間定尺切断装
置は、薄肉管連続製造設備から送り出されてくる連続管
に向かって進退する可動台と、可動台上を進退して該連
続管内に抜き差しされる回転刃付きパイプカッタと、可
動台に固定した管切断時に回転刃に対応する環状固定ダ
イスと、可動台に設けた管切断時から定尺管取り出し直
前まで定尺管を外側から固定するクランプと、可動台に
設けた定尺管取出し払出し装置とで構成され、回転刃付
きパイプカッタは、基部を駆動機構部に、片持ち且つ回
転可能に支持した定尺管より長い管状主体と、管状主体
の軸心に支持した前後両端が管状主体から突き出ている
軸杆と、軸杆の前端の案内体と、案内体の後方に配置し
た管切断時に連続管を内側から環状固定ダイスに押圧す
るクランプ、およびそのクランプの操作機構と、クラン
プの直後で管状主体の前端に支持した1個ないし同一円
周上に位置する複数個の回転刃、およびその回転刃を内
側から連続管に切り込ませる操作機構とから成り、駆動
機構部には、クランプ操作機構を作動させるために、軸
杆を直線往復動させるシリンダと、回転刃切り込み操作
機構を作動させるために、軸杆を往復回動させるロータ
リシリンダと、連続管に切り込んだ回転刃を管の円周方
向に転動させるために、管状主体を回転させるモータと
を備え、(1)パイプカッタが連続管に進入して回転刃
が環状固定ダイスに対応すると、可動台およびパイプカ
ッタの前進が停止し、(2)連続管の長さが定尺に達し
て定尺検知装置から切断信号を受けると、可動台および
パイプカッタが連続管の速度に同期して後退を始めると
ともに、管の内外からクランプが働き、(3)回転刃が
連続管に切り込み、パイプカッタが回転して回転刃と環
状固定ダイスとで連続管を内側から剪断し、(4)定尺
管を外から固定しているクランプが可動台に対し瞬時後
退して定尺管を連続管から僅少距離引き離すとともに、
回転刃が引っ込み、環状固定ダイスに対する連続管の内
側からのクランプが解放され、(5)可動台は、定尺管
を外からクランプで固定したまま、連続管の速度に同期
して後退を続けるが、パイプカッタは可動台より速い速
度に転じて後退し、その間に定尺管取出し払出し装置が
定尺管をつかみ、(6)パイプカッタが定尺管から脱出
すると、定尺管の外からのクランプが解放されて該クラ
ンプが原位置に戻るとともに、定尺管取出し払出し装置
が定尺管を取出し、(7)可動台およびパイプカッタが
前進に転じ、パイプカッタは可動台よりも速い速度で前
進して連続管に進入し、(8)可動台およびパイプカッ
タの折り返しから前進端で停止して次の切断信号を待つ
間に、定尺管取出し払出し装置が定尺管を走間定尺切断
装置の外に払出して原位置に復帰する、以上(1)〜
(8)の動作を繰り返すようにシーケンス制御回路が構
成されていることを特徴とする薄肉管連続製造設備にお
ける走間定尺切断装置。2. A continuous-distance cutting device is connected directly to a thin-walled tube continuous production facility for welding a butt portion while forming a metal strip into a tubular shape by a roll forming device. A movable table which advances and retreats toward a continuous pipe sent out from a continuous manufacturing facility, a pipe cutter with a rotary blade which advances and retreats on the movable table and is inserted into and removed from the continuous pipe; and a rotary blade which is fixed to the movable table when cutting a pipe. An annular fixed die corresponding to the above, a clamp provided on the movable table, from the time of cutting the pipe to just before taking out the fixed length tube, and a clamp for fixing the fixed length tube from the outside, and a fixed length tube removing and dispensing device provided on the movable table, A pipe cutter with a rotary blade has a tubular main body longer than a fixed-length tube whose base is supported by a drive mechanism, and is cantilevered and rotatably supported, and a shaft rod whose front and rear ends supported by an axis of the tubular main body protrude from the tubular main body. And in front of the shaft A guide, a clamp disposed behind the guide, which presses the continuous pipe against the annular fixed die from the inside when cutting the pipe, an operating mechanism of the clamp, and one or more of the clamps supported on the front end of the tubular main body immediately after the clamp. It consists of a plurality of rotary blades located on the same circumference, and an operating mechanism for cutting the rotary blades from the inside into the continuous pipe.The drive mechanism has a shaft rod for operating the clamp operating mechanism. A cylinder for linearly reciprocating, a rotary cylinder for reciprocating the shaft for operating the rotary blade cutting operation mechanism, and a tubular for rotating the rotary blade cut into the continuous pipe in the circumferential direction of the pipe. (1) When the pipe cutter enters the continuous pipe and the rotary blade corresponds to the annular fixed die, the movable table and the pipe cutter stop moving, and (2) the continuous pipe When the length reaches the fixed length and the cutting signal is received from the fixed length detecting device, the movable table and the pipe cutter start retreating in synchronization with the speed of the continuous pipe, and the clamp works from inside and outside of the pipe, and (3) rotation The blade cuts into the continuous pipe, the pipe cutter rotates, shears the continuous pipe from the inside with the rotating blade and the annular fixed die, and (4) the clamp that fixes the fixed-length pipe from outside retracts instantaneously with respect to the movable table. To separate the fixed length tube from the continuous tube a small distance,
The rotary blade retracts, and the clamp from the inside of the continuous tube to the annular fixed die is released. (5) The movable table keeps retracting in synchronization with the speed of the continuous tube while the fixed length tube is clamped from outside. However, the pipe cutter turns faster than the movable table and retreats, and during this time, the fixed-length tube take-out and ejection device grabs the fixed length tube. (6) When the pipe cutter escapes from the fixed length tube, Is released and the clamp returns to the original position, and the constant-length tube removing / dispensing device removes the constant-length tube. (7) The movable table and the pipe cutter turn forward, and the pipe cutter is moved at a higher speed than the movable table. (8) While the movable table and the pipe cutter are turned back and stopped at the forward end and awaiting the next cutting signal, the constant-length tube unloading and dispensing device sets the constant-length tube for the running distance. Dispensing outside the cutting device To return to the original position, or more (1) to
A continuous-distance cutting device in a thin-walled tube continuous manufacturing facility, wherein a sequence control circuit is configured to repeat the operation of (8).
間定尺切断装置に向かう連続管の速度を連続的に計測す
る非接触式速度計を備え、その速度から演算される長さ
値が定尺値に達する時点ごとに、走間定尺切断装置に切
断信号を発信することを特徴とする請求項1および請求
項2記載の薄肉管連続製造設備における走間定尺切断装
置。3. A non-contact type speed meter for continuously measuring the speed of a continuous pipe sent out from a thin-walled pipe continuous manufacturing facility and heading to a constant length cutting device, and a length value calculated from the speed is provided. 3. The cutting device according to claim 1, wherein a cutting signal is transmitted to the cutting device at a time when the constant value is reached.
たサーボモータで、また、回転刃付きパイプカッタは、
そのパイプカッタ側または可動台側に設けたサーボモー
タで各々進退駆動されることを特徴とする請求項1およ
び請求項2記載の薄肉管連続製造設備における走間定尺
切断装置。4. The movable base is a servomotor provided on the base side or the movable base side, and the pipe cutter with a rotary blade is
3. The constant-distance cutting device in a thin-walled tube continuous manufacturing facility according to claim 1, wherein the device is driven forward and backward by a servomotor provided on the pipe cutter side or the movable table side.
に対し瞬時後退させる機構は、可動台に設置した直線往
復動シリンダであることを特徴とする請求項1および請
求項2記載の薄肉管連続製造設備における走間定尺切断
装置。5. The thin wall according to claim 1, wherein the mechanism for immediately retracting the fixed-length tube fixing clamp with respect to the movable table immediately after shearing is a linear reciprocating cylinder installed on the movable table. A constant-length cutting device for continuous running in a continuous pipe manufacturing facility.
定尺管取出し払出し装置のクランプはいずれもプライヤ
形に構成され、各々直線往復動シリンダで開閉駆動され
ることを特徴とする請求項1および請求項2記載の薄肉
管連続製造設備における走間定尺切断装置。6. A fixed-pipe fixing clamp on a movable base and a clamp of a fixed-pipe take-out and discharge device are each configured as a pliers, and each of them is opened and closed by a linear reciprocating cylinder. 3. A constant-length cutting device in a thin-walled tube continuous production facility according to claim 1 or 2.
ッタに備えたクランプは、円周上複数箇所に設置したシ
ーソー形レバー、クランプ操作機構は、そのシーソー形
レバーの端部に作用する直線往復動カムであることを特
徴とする薄肉管連続製造設備における走間定尺切断装
置。7. A see-saw lever provided at a plurality of positions on a circumference according to claim 2, wherein the clamp provided on the pipe cutter with a rotary blade is a see-saw lever, and the clamp operating mechanism is a linear reciprocating mechanism acting on an end of the see-saw lever. A constant-distance cutting device in a thin-walled tube continuous manufacturing facility, which is a moving cam.
機構は、一端を管状主体の前端に支軸で取付けると共
に、自由端に回転刃軸を支持したレバーと、軸杆に、軸
杆と一体回動且つ軸方向相対移動可能に支持したレバー
と、両レバーの自由端相互を連結したリンクとで構成さ
れていることを特徴とする薄肉管連続製造設備における
走間定尺切断装置。8. The rotary blade cutting operation mechanism according to claim 2, wherein one end of the rotary blade cutting operation mechanism is attached to a front end of the tubular main body by a support shaft, and a lever having a free end supporting the rotary blade shaft, a shaft rod, and a shaft rod. A continuous-distance cutting device for thin-walled tube continuous production equipment, comprising: a lever rotatably and axially movable relative to each other; and a link connecting the free ends of both levers.
出しの各位置でクランプを昇降させる機構と、その上昇
状態においてクランプを取出し位置と払出し位置の間を
往復させる機構とを備えていることを特徴とする請求項
1および請求項2記載の薄肉管連続製造設備における走
間定尺切断装置。9. A fixed-length tube dispensing and dispensing device includes a mechanism for raising and lowering a clamp at each of a dispensing and dispensing position, and a mechanism for reciprocating the clamp between the dispensing position and the dispensing position in the raised state. 3. The constant-running-distance cutting device in the thin-walled tube continuous production facility according to claim 1 or 2, wherein:
構は油圧シリンダ、クランプの往復機構は、チェーンま
たはベルト伝動装置、もしくは油圧シリンダであること
を特徴とする薄肉管連続製造設備における走間定尺切断
装置。10. The constant distance during travel in a thin-walled tube continuous manufacturing facility according to claim 9, wherein the lifting mechanism of the clamp is a hydraulic cylinder, and the reciprocating mechanism of the clamp is a chain or a belt transmission device or a hydraulic cylinder. Cutting device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24133296A JP3715725B2 (en) | 1996-08-23 | 1996-08-23 | Running interval cutting device in thin-walled tube continuous manufacturing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24133296A JP3715725B2 (en) | 1996-08-23 | 1996-08-23 | Running interval cutting device in thin-walled tube continuous manufacturing equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1058225A true JPH1058225A (en) | 1998-03-03 |
JP3715725B2 JP3715725B2 (en) | 2005-11-16 |
Family
ID=17072732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24133296A Expired - Fee Related JP3715725B2 (en) | 1996-08-23 | 1996-08-23 | Running interval cutting device in thin-walled tube continuous manufacturing equipment |
Country Status (1)
Country | Link |
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JP (1) | JP3715725B2 (en) |
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-
1996
- 1996-08-23 JP JP24133296A patent/JP3715725B2/en not_active Expired - Fee Related
Cited By (30)
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CN110238438A (en) * | 2019-06-25 | 2019-09-17 | 盐城市韩景汽车配件有限公司 | Cutting equipment is used in the processing of automotive seat pipe fitting |
CN110238438B (en) * | 2019-06-25 | 2020-05-08 | 盐城市韩景汽车配件有限公司 | Cutting equipment is used in processing of car seat pipe fitting |
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CN110948281A (en) * | 2019-12-26 | 2020-04-03 | 苏州新区德力精密机械有限公司 | Metal cutting device is used in production of commodity circulation turnover vehicle |
CN111069694A (en) * | 2019-12-30 | 2020-04-28 | 福建恒杰塑业新材料有限公司 | Cutting equipment capable of clamping pipe fittings with different lengths |
CN113232072A (en) * | 2021-05-27 | 2021-08-10 | 华盟(浙江)机械装备科技有限公司 | Automatic cutting device for glass fiber pipe joint |
CN113458878A (en) * | 2021-06-30 | 2021-10-01 | 江阴市苏恒模锻有限公司 | Machining process of variable-pitch output shaft forging for wind power |
CN113664725A (en) * | 2021-08-19 | 2021-11-19 | 徐州维尔德科技发展有限公司 | Convenient automatic unloading's upper and lower support of excavator shaping integrated device for processing |
CN115972279A (en) * | 2023-03-20 | 2023-04-18 | 山东翁派斯环保科技有限公司 | Insulating tube port cutting device |
CN115972279B (en) * | 2023-03-20 | 2023-05-16 | 山东翁派斯环保科技有限公司 | Cutting device for heat preservation pipe end |
CN116900789B (en) * | 2023-09-08 | 2023-12-15 | 泰州市巨久不锈钢有限公司 | Automatic blanking machine for stainless steel sleeve |
CN116900789A (en) * | 2023-09-08 | 2023-10-20 | 泰州市巨久不锈钢有限公司 | Automatic blanking machine for stainless steel sleeve |
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