JPS58224018A - Loop formation in wire material rolling mill - Google Patents
Loop formation in wire material rolling millInfo
- Publication number
- JPS58224018A JPS58224018A JP10878882A JP10878882A JPS58224018A JP S58224018 A JPS58224018 A JP S58224018A JP 10878882 A JP10878882 A JP 10878882A JP 10878882 A JP10878882 A JP 10878882A JP S58224018 A JPS58224018 A JP S58224018A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- loop
- strip
- wire material
- looper
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は線材、棒鋼等の条材圧延設備において、圧延機
間あるいは圧延機列間に配置されるルーパーにおけるル
ープ形成方法に関するものである・線材、棒鋼等の条材
を圧延する設備においては％製品の寸法精度および契品
形状を向上せしめるために圧延機間あるいは圧延機列間
において、条材に張力が作用することを回避する目的の
もとに核部分にルーパーを配置し１条材にループを形成
せしめ、このループを保持し制御することによって条材
に対する張力の影響による寸法精度と製品′形状の低下
を防止している。ここに使用されるルーパーは例えば特
公昭４Ｂ−１”３５５２号会報にその二側を見ることが
ズきるように、条材の通過経路（パスライン）の側方に
平滑たループ形成床があシ、通過経路を横切って進退す
るキラ夛ローラが付設され、ルーパーの出入側に配置さ
れたガイドロー２−とキックローラーとで緩やかなルー
プを条材に形成せしめ、ループ床上方に配したループ検
出器によル常時所定のループ高さと表るＬ′うにルーパ
ーの前後にある圧延機の速度を制御するものである。と
ころで、ルーパーにおけるキックローラーは、パスライ
ンを通過する条材をバスフィンから側方へ条材の圧延速
度に適合した速度でもってけシ出すとともに、形成され
たループを維持する機能とが要求されるが、この両機能
はキックローラーの駆動手段によって付与され、この駆
動手段の如何を問わず１両者の機能は相互に矛盾するこ
とになる。この点にクきさらＫ詳述するならば、キック
ロ一２−の駆動手段としては，バネ駆動方式とエヤーシ
リンダー組動方式とがあるが，例えば，バ，ネ駆動方式
においてはキツクａ 一ラーのループ保持力は最大圧延
寸法に合せ、また，キツクｐ−ラーのけシ出し速度゛は
最小圧延寸法でしかも最高時の圧延速度に合せて設定す
る必要があシ、斯る場合，特に圧延寸法の小さい製品の
圧延時においては圧延速度が高速であるためけシ出し速
度を早くするためにバネ設定力を強くする必要があシ、
けり出し速度にあわせてバネを設定するとループ保持力
が過大となル、条材はルーパーにおいてループ高さが高
くなりループ制御時にキックローラーがループ形状に追
随し得力くなル条材のループはを−パー前後のガイドロ
ーラーとキックローラーとの間で三角形状となって条材
に張力を生起せしめる結果となヤ、製品精度の低下り
をもたらすことになる。これを回避するためにル
ープの保持力を，基準として設定するとキックロー２−
のけ夛出し速度が低下しループ形成のタイｉングにずｔ
′Ｌｆｔ生じ条材にタクレを生じｉスロールの原因とな
る。バネ駆動方式の場合と同様のこ゛゜とがシリンダー
駆動方式の場合にも該当する。Detailed Description of the Invention The present invention relates to a method for forming loops in loopers arranged between rolling mills or between rows of rolling mills in rolling equipment for strip materials such as wire rods and steel bars. - Strip materials such as wire rods and steel bars In order to improve the dimensional accuracy and shape of rolled products, a looper is installed in the core part between rolling mills or between rows of rolling mills in order to avoid tension being applied to the strip. is arranged to form a loop in one strip, and by holding and controlling this loop, it is possible to prevent the dimensional accuracy and product shape from deteriorating due to the influence of tension on the strip. The looper used here has a smooth loop-forming bed on the side of the pass line of the strip so that the two sides can be seen clearly. A glitter roller that advances and retreats across the passage path is attached, and a gentle loop is formed in the strip material by the guide row 2 placed on the entrance/exit side of the looper and the kick roller, and the loop is placed above the loop floor. The detector always indicates a predetermined loop height L' to control the speed of the rolling mills located before and after the looper.By the way, the kick roller in the looper separates the strip passing through the pass line from the bus fin. It is required to push the strip out to the side at a speed that matches the rolling speed of the strip and to maintain the formed loop. Both functions are provided by the drive means of the kick roller, and this drive means No matter what, the functions of the two are mutually contradictory.To elaborate on this point, there are two driving methods for the kick roller: a spring drive system and an air cylinder assembly system. However, for example, in the spring drive system, the loop holding force of the kick roller is adjusted to the maximum rolling dimension, and the kicking speed of the kick roller is adjusted to the minimum rolling dimension and the maximum rolling dimension. It is necessary to set the spring setting according to the rolling speed. In such a case, especially when rolling products with small rolling dimensions, since the rolling speed is high, it is necessary to increase the spring setting force in order to increase the shedding speed. Ashi,
If the spring is set according to the kicking speed, the loop holding force will be excessive, and the loop height of the strip will increase at the looper, and the kick roller will follow the loop shape during loop control, causing the loop of the strip to become weaker. - The triangular shape between the guide rollers and kick rollers before and after the par creates tension in the strip, resulting in a decrease in product accuracy.
It will bring about. In order to avoid this, the loop holding force is set as the standard for kick low 2-
The speed of unloading decreases and the tying of loop formation becomes difficult.
'Lft occurs, causing tangles in the strip material and causing i-sroll. The same considerations as in the case of the spring drive system also apply to the case of the cylinder drive system.
本発明は前述の諸点に鑑みなされたものであって，その
特徴とするところは、条材圧延設備の圧延機間および圧
延機列間に配買されるルーバーにおいて、各ルーバーに
付設されるキックローラーに各ルーバーに進入してくる
条材寸法に対応せるキツク力を付与するとともに、条材
をけシ出した後、前記キツクローラが所定の条材保持力
となるよ・うに、各キツクローラの駆動手段を調節せし
める点に存するものである。The present invention has been made in view of the above-mentioned points, and is characterized by a kick attached to each louver distributed between rolling mills and between rolling mill rows in a strip rolling facility. In addition to applying a picking force to the roller corresponding to the size of the strip that enters each louver, each of the wood crawlers is driven so that after the strip is pushed out, the wood crawler has a predetermined strip holding force. It consists in allowing the means to be adjusted.
以下図示の実施例にも．とづいて本発明に係るループ形
成方法について説明するに、第１図は水平圧延機ｌと垂
直圧延機２とを交互に配置してなる条材圧延設備におけ
る仕上圧延列を示すもので．水平圧延機１および垂直圧
延機２との間にルーパー３が配置されている。ルーパー
８は第２図にその概略図を示すように、ルーパー３の入
側および出側に条材を案内するガイドＥｌ−１−４．５
が立殺され、条材の通過経路の側方にループ床６を有し
，さらに、条材の通過経路を横″切クて通過経路内に進
退するキックｎ−ラー７が揺動レパー８の先端に軸支さ
れ、との揺動レパー８は一端を電動機又は油圧シリンダ
ー等の駆゜動装置１１（図示の実′施例では電動機を使
用している）にｘｐ進退可能とされた螺子桿ｌＯに係持
されたバネ９に接続され駆動されるＬラ釦なっている（
尚，図中、キツクロー′）−７のトリガー機構およびリ
セット機構は省略した）。ルーパー３の駆動装置ｌ１に
はキックローラー７のけシ出し速度およびループの保持
力を調整するための制御回路が付設され、即ち１２は、
圧延機間に配置される各ルーパーに対し，圧延速度訃Ｌ
び圧延される条鋼寸法に見合った最適のけり出し速度お
よびループ保持力を記憶させ，必要に応じてそれを出力
させるための計算機，ｉａは計算機！２の出方信号ある
いは、圧延機１および２Ｋ内蔵させたロードセル１４あ
るいけ．圧延四−ルを駆動する建ルモーターｌ５の条材
噛み込み時のインパクトドロップの検出信号等の条材の
圧延機に対する噛み込み信号にもとづいて個々の駆動装
置１１あるいはキックローラー７のトリガー機構，リセ
ット機構等を作動せしめる制御盤である。Also in the example shown below. Next, to explain the loop forming method according to the present invention, FIG. 1 shows a finishing rolling row in a strip rolling facility in which horizontal rolling mills 1 and vertical rolling mills 2 are arranged alternately. A looper 3 is arranged between the horizontal rolling mill 1 and the vertical rolling mill 2. As shown in the schematic diagram in FIG. 2, the looper 8 has a guide El-1-4.5 that guides the strip to the entrance and exit sides of the looper 3.
has a loop floor 6 on the side of the passage of the strip material, and furthermore, a kick n-ler 7 that crosses the passage route of the strip material and advances and retreats into the passage route is moved by a swinging repper 8. The swing lever 8 has one end connected to a drive device 11 such as an electric motor or a hydraulic cylinder (an electric motor is used in the illustrated embodiment) through a screw that can move forward and backward. It is an L button that is connected to and driven by a spring 9 that is attached to the rod lO (
In addition, the trigger mechanism and reset mechanism of Kitsukuro')-7 are omitted in the figure). The driving device l1 of the looper 3 is provided with a control circuit for adjusting the kicking-out speed of the kick roller 7 and the holding force of the loop.
For each looper placed between the rolling mills, the rolling speed L
IA is a calculator that memorizes the optimum kicking speed and loop holding force according to the dimensions of the long bar to be rolled and outputs it as necessary. 2 exit signal or the load cell 14 built into rolling mills 1 and 2K. A trigger mechanism for each drive device 11 or kick roller 7 based on a signal of the strip material being caught in the rolling machine, such as a detection signal of an impact drop when the strip material is caught by the building motor 15 that drives the rolling four wheel. This is a control panel that operates the reset mechanism, etc.
圧延の開始に先立って計算機１２に圧延される条材の製
品寸法幼）及び圧延速度（ｖｌを入力すると、計算機ｌ
２は各圧延機出側における圧延される癲材断面寸法及び
圧延速度に見合ったそれぞれのルーパー３に対するキッ
ク四−ラー７のけり出し速度及びループ保持力を記憶し
ているデータ一諸元から選択し制御盤１８Ｋ，出力する
。制御盤１３の出力信号にもとづいて，ルーパー３Ｋお
ける駆動装置ｌ１が駆動され螺子桿ｌＯを回動せしめ、
キツクｐ−ラー７を・牽引するバネ９の支持点を移動さ
せ，キックロ一２−７の牽引力を先づ所要のけシ出し速
度に調整する。条材の先端が圧延機１を通過し、圧延機
２に噛込んだ瞬間のミルモーター６のインバクトド四ツ
プ又はスメンドに内蔵、されているロードセル１４の検
出信号にもとづいて制御盤ｌ８からルーバ′−８のトリ
ガー機構の作動信号が出され、キック口°””、ｙ −
７がバネ９の牽引力にニジ急速に通過経路に進入し５条
材を側方へけシ出しループを形成せしめ、る。Prior to the start of rolling, when inputting the product dimensions of the strip to be rolled and the rolling speed (vl) into the calculator 12, the calculator 12
2 is selected from data storing the kicking speed and loop holding force of the kick roller 7 for each looper 3 commensurate with the cross-sectional dimension of the rolled material and the rolling speed at the exit side of each rolling mill. The control panel outputs 18K. Based on the output signal from the control panel 13, the drive device l1 in the looper 3K is driven to rotate the screw rod lO,
The support point of the spring 9 that pulls the kick puller 7 is moved, and the pulling force of the kick roller 2-7 is first adjusted to the required kick-out speed. At the moment when the tip of the strip passes through the rolling mill 1 and is bitten by the rolling mill 2, the louver is sent from the control panel 18 based on the detection signal of the load cell 14 built in the impact door 4 or smend of the mill motor 6. The activation signal of the trigger mechanism of '-8 is output, and the kick mouth °"", y -
7 rapidly enters the passage path due to the traction force of the spring 9, and the 5 strips are pushed out to the side to form a loop.
以下順次圧延機間において条材にループが形成されるが
、ルーパー３のキックローラー７はループ形成作動後直
ちに所定のループ保持力となるようにキックローラー７
の作動後所定時間経過した後に制御盤１３からの作動信
号にもとづいて駆動装置１１が作動され螺子枠１０が回
動せしめられ、バネ９の支持点が移動され、キックロー
５１−７の牽引力が調！＆すれる。斯くすることに↓つ
てキック四−ラー７ｉループ制御作動時におけるループ
に追随し得ることになシ、条材に対し過大な張力発生を
防止する。Thereafter, a loop is sequentially formed in the strip between the rolling mills, and the kick roller 7 of the looper 3 is moved so that a predetermined loop holding force is achieved immediately after the loop forming operation.
After a predetermined period of time has passed after the activation, the drive device 11 is activated based on the activation signal from the control panel 13, the screw frame 10 is rotated, the support point of the spring 9 is moved, and the traction force of the kick low 51-7 is adjusted. ! ＆Sureru. By doing so, it is possible to follow the loop when the kick four-ler 7i loop control is activated, and generation of excessive tension on the strip is prevented.
特に、断面寸法の小さい条材を圧延する場合、高速の圧
ｉ速度に対応する高いけシ出し速度を方えるためにバネ
９による牽引力を最大にし、ループ、ａ 形成後
Ｋ ＞ 喧−−７′Ｋ 追１’Ｊ［Ｌ ４ ｈ ＊ Ｋ
′’ ＊ ９による牽引力を小さくする如く螺子枠１
ｏを駆動せしめる。In particular, when rolling a strip with a small cross-sectional dimension, the traction force by the spring 9 is maximized in order to cope with the high rolling speed corresponding to the high rolling speed. 'K Add 1'J [L 4 h * K
'' * Screw frame 1 to reduce the traction force caused by 9.
drive o.
尚、前述の実施例にあっては、ルーパー３のキックロー
ラー７の駆動手段としてバネによる場合を説明したが、
エヤシリンダーを用いて駆動する場合にあってはシリン
ダーに対する流量制御弁あるいは圧力調整弁な制御する
ことによって、キックシーラー７のけり出し速度および
ループ保持力を調整することができる。In addition, in the above-mentioned embodiment, a case was explained in which a spring was used as the driving means for the kick roller 7 of the looper 3.
In the case of driving using an air cylinder, the kicking speed and loop holding force of the kick sealer 7 can be adjusted by controlling the flow rate control valve or pressure control valve for the cylinder.
以上の説明から明らかな工９に、本発明によればルーパ
ーにおけるキック口、−ラーのけシ出し速度とループ保
持力とを圧延条件に°適合して調整し得ることになり、
安定的なループ形成を可能にし、条材に対する張力発生
を抑制することが可能となシ、条材の寸法精度の低下を
防止し、また設備の生産性を向上せしめる等その奏する
効果は大なるものである。As is clear from the above explanation, according to the present invention, the kick opening of the looper, the extrusion speed of the looper, and the loop holding force can be adjusted to suit the rolling conditions.
It has great effects such as making it possible to form stable loops, suppressing the generation of tension on the strips, preventing a decline in the dimensional accuracy of the strips, and improving the productivity of the equipment. It is something.
第１図は条材圧延機設備の配列の一例を示す概略説明図
、第２図はルーパーの構造を示す概略説明図である。
図において、１は水平圧延機、２は垂直圧延機、３はル
ーパー、４，５はガイドロー２−１７はキックローラー
である。
特許出願人 株式会社神戸製鋼所FIG. 1 is a schematic explanatory diagram showing an example of the arrangement of strip rolling mill equipment, and FIG. 2 is a schematic explanatory diagram showing the structure of a looper. In the figure, 1 is a horizontal rolling mill, 2 is a vertical rolling mill, 3 is a looper, and 4 and 5 are guide rows 2-17 are kick rollers. Patent applicant Kobe Steel, Ltd.
Claims (1)
れるルーパーにおいて、各゛ルーパーに付設されるヤツ
クロー２−に各ルーパーに進入してくる条材寸法に対応
せるキｔり力を付与するとともに、条゛材をけり出した
後前記キツタローラが所定の条材保持力となるように各
キ；クローラの駆動手段をｌ１１ｍ節せしめることを特
徴とする条材圧延設備におけるループ形成方法。(Example) In loopers placed between rolling mills and between rows of rolling mills in strip rolling equipment, a tightening force is applied to the jaw claw 2 attached to each looper to correspond to the size of the strip entering each looper. A method for forming a loop in a strip rolling equipment, characterized in that, after the strip is kicked out, the driving means of each crawler is made to bend by 111 m so that the hard rollers have a predetermined strip holding force after the strip is kicked out. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10878882A JPS58224018A (en) | 1982-06-24 | 1982-06-24 | Loop formation in wire material rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10878882A JPS58224018A (en) | 1982-06-24 | 1982-06-24 | Loop formation in wire material rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58224018A true JPS58224018A (en) | 1983-12-26 |
| JPS6317523B2 JPS6317523B2 (en) | 1988-04-14 |
Family
ID=14493490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10878882A Granted JPS58224018A (en) | 1982-06-24 | 1982-06-24 | Loop formation in wire material rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58224018A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756907A1 (en) * | 1995-08-03 | 1997-02-05 | CEDA Spa Costruzioni Elettromeccaniche e Dispositivi d'Automazione | Method to control between rolling stands the drawing of the rolled stock and relative device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120947A (en) * | 1976-04-06 | 1977-10-11 | Ishikawajima Harima Heavy Ind | Looper driving device |
-
1982
- 1982-06-24 JP JP10878882A patent/JPS58224018A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120947A (en) * | 1976-04-06 | 1977-10-11 | Ishikawajima Harima Heavy Ind | Looper driving device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756907A1 (en) * | 1995-08-03 | 1997-02-05 | CEDA Spa Costruzioni Elettromeccaniche e Dispositivi d'Automazione | Method to control between rolling stands the drawing of the rolled stock and relative device |
| EP0756906A1 (en) * | 1995-08-03 | 1997-02-05 | CEDA Spa Costruzioni Elettromeccaniche e Dispositivi d'Automazione | Method to control between rolling stands the drawing of the rolled stock and relative device |
| US5784914A (en) * | 1995-08-03 | 1998-07-28 | Ceda Spa Costruzioni Elettromeccaniche E Dispositivie D'automazione | Method to control between rolling stands the drawing of the rolled stock and relative device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6317523B2 (en) | 1988-04-14 |
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