JPH01254303A - Adjusting method for position of cobble guard - Google Patents
Adjusting method for position of cobble guardInfo
- Publication number
- JPH01254303A JPH01254303A JP8230488A JP8230488A JPH01254303A JP H01254303 A JPH01254303 A JP H01254303A JP 8230488 A JP8230488 A JP 8230488A JP 8230488 A JP8230488 A JP 8230488A JP H01254303 A JPH01254303 A JP H01254303A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- cobble guard
- nozzle
- cobble
- guard
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
- B21B33/02—Preventing fracture of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、圧延機の圧延ロールに圧延中の金属ストリッ
プが巻付くのを防ぐためのコブルガードの先端とワーク
ロール外周面間の間隙を調節する方法に関するものであ
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention is directed to adjusting the gap between the tip of a cobble guard and the outer peripheral surface of a work roll to prevent a metal strip being rolled from being wrapped around the roll of a rolling mill. It's about how to do it.
〈従来の技術〉
コブルガードとは、圧延中の金属ストリップが破断した
場合に、圧延機のロールに巻付くのを防止するためのも
のであり、またロール冷却水の金属ストリップへの落水
防止を兼ねるものもある。<Prior art> A cobble guard is used to prevent the metal strip from wrapping around the rolls of the rolling mill when it breaks during rolling, and also serves to prevent roll cooling water from falling onto the metal strip. There are some things.
そしてコブルガードの先端とワークロール外周面間の間
隙が小さいほど、金属ストリップの巻付防止効果、更に
落水防止効果が大きい。The smaller the gap between the tip of the cobble guard and the outer peripheral surface of the work roll, the greater the effect of preventing the metal strip from wrapping and the greater the effect of preventing water from falling.
従来のコブルガードの先端とワークロール外周面間の間
隙の調整方法には、■コブルガードを機械的な要素を介
してモータに連絡し、モータの回転数からコブルガード
の移動距離を求めて間隙を調整する方法、■過流センサ
ー等の電気的センサーを用いて間隙を検出、調整する方
法、■接触式の距離計測器を用いて間隙を検出、１！整
する方法等があった。The conventional method for adjusting the gap between the tip of the cobble guard and the outer circumferential surface of the work roll includes: ■ Connecting the cobble guard to the motor via a mechanical element, and adjusting the gap by finding the travel distance of the cobble guard from the motor rotation speed. Method, ■Method of detecting and adjusting the gap using an electrical sensor such as an overflow sensor, ■Detecting the gap using a contact distance measuring device, 1! There was a way to fix it.
〈発明が解決しようとする課題〉
しかし、ワークロールの附近は高熱で冷却水が飛散する
悪環境下にあるので、前記■の方法は機械的精度を維持
するのが困難であり、前記■の電気的センサーによる方
法も電気的センサーのトラブルや断線が多発し信転性、
保守性に問題があった、また前記■の接触式検出法はワ
ークロールとの接触部が摩耗して正確な位置の調整は困
難であった・
本発明は、以上の問題を解消したコブルガードの位置調
整方法を提供することを目的とする。<Problem to be solved by the invention> However, since the vicinity of the work rolls is in a bad environment with high heat and cooling water scattering, it is difficult to maintain mechanical precision with the method (2) above, and the method (2) above is difficult to maintain. The method using electrical sensors also suffers from frequent electrical sensor troubles and disconnections, resulting in poor reliability.
There was a problem with maintainability, and the contact detection method described in (2) above wears the contact part with the work roll, making it difficult to adjust the position accurately.The present invention has developed a cobble guard that solves the above problems. The purpose is to provide a position adjustment method.
く課題を解決するための手段〉
本発明は、圧延機のロールに圧延中の金属ストリップが
巻付くのを防ぐコブルガードの位置調整方法において、
コブルガート−の先端に一定流量の気体を放出するノズ
ルを設け、前記気体の放出圧力を検出して前記コブルガ
ードの先端とワークロールの外周面間の距離を設定する
ものである。Means for Solving the Problems> The present invention provides a method for adjusting the position of a cobble guard that prevents a metal strip being rolled from being wrapped around a roll of a rolling mill.
A nozzle for discharging a constant flow rate of gas is provided at the tip of the cobble guard, and the distance between the tip of the cobble guard and the outer peripheral surface of the work roll is set by detecting the discharge pressure of the gas.
く作 用〉
次に作用を第３図とともに説明する。第３図はノズルか
ら一定流量のエアーを放出した場合における、ノズル先
端とワークロール外周面間の間隙２とエアーの放出圧力
との関係を示すグラフであり、間隙２が小さいほどエア
ーの放出圧力は高くなり、しかも微小間隙に対してよい
感度を示す。Function> Next, the function will be explained with reference to Fig. 3. Figure 3 is a graph showing the relationship between the gap 2 between the nozzle tip and the outer peripheral surface of the work roll and the air discharge pressure when a constant flow rate of air is discharged from the nozzle. is high, and shows good sensitivity to minute gaps.
本発明はこの現象を利用したもので、コブルガードの先
端に気体を放出するノズルを取付け、エアーの放出圧力
を検出することによって、コブルガードの先端とワーク
ロール外周面間の微小な間隙を検出することができ、こ
の間隙が所定の値になるようにコブルガードの位置を調
整する。The present invention takes advantage of this phenomenon, and by attaching a nozzle that releases gas to the tip of the cobble guard and detecting the air release pressure, it is possible to detect a minute gap between the tip of the cobble guard and the outer peripheral surface of the work roll. Adjust the position of the cobble guard so that this gap becomes the specified value.
〈実施例〉 本発明の一実施例を図面に基づいて説明する。<Example> An embodiment of the present invention will be described based on the drawings.
第１．２図は本発明の方法を冷間圧延機に適用した例を
示し、第１図は全体説明図、第２図は第１図の要部拡大
図である。1.2 shows an example in which the method of the present invention is applied to a cold rolling mill, FIG. 1 is an overall explanatory view, and FIG. 2 is an enlarged view of the main part of FIG. 1.
図において、１は冷間圧延機のワークロール、２はバッ
クアップロール、３は金属ストリップ、４はロール冷却
水のへ７グーである。In the figure, 1 is a work roll of a cold rolling mill, 2 is a backup roll, 3 is a metal strip, and 4 is a roll cooling water supply.
そして、５は金属ストリップ３の破断時に、ワークロー
ル１とバックアップロール２との間に金属ストリップ３
が巻込まれるのを防ぐためのコブルガードである。コブ
ルガード５は、ヘッダー４から噴出するロール冷却水が
金属ストリップ３上に落下するのを防止する役目もして
いる。5 indicates that the metal strip 3 is between the work roll 1 and the backup roll 2 when the metal strip 3 is broken.
This is a cobble guard to prevent people from getting caught. The cobble guard 5 also serves to prevent roll cooling water spouted from the header 4 from falling onto the metal strip 3.
コブルガード５は、図示されないガイドで走行可能にガ
イドされエアーシリンダ６によって駆動され、ワークロ
ール１の外周に接近した位置に位置ぎめされる。なおエ
アーシリンダ６は圧延機のハウジングに固定されている
。The cobble guard 5 is movably guided by a guide (not shown), driven by an air cylinder 6, and positioned close to the outer periphery of the work roll 1. Note that the air cylinder 6 is fixed to the housing of the rolling mill.
コブルガード５の先端とワークロール１の外周面間の間
隙の調整は、ロール１．２から離れた側のコブルガード
５の端部に設けた間隙調整用ジヤツキ７を駆動モータ８
により作動させて行う。Adjustment of the gap between the tip of the cobble guard 5 and the outer circumferential surface of the work roll 1 is performed by using a drive motor 8 to adjust the gap between the gap adjusting jack 7 provided at the end of the cobble guard 5 on the side away from the roll 1.2.
This is done by activating it.
９はコブルガード５の先端部に取付けたエアー放出ノズ
ルであり、その先端がコブルガードの先端と同じ位置に
設置してあり、一定流量のエアーが配管１０を通って、
ノズル９から放出するようにしである。１１は、配管１
０のノズル９の近傍に設けたエアーの圧力検出器或いは
エアーの所定の圧力によって作動する圧力スイッチであ
り、エアーの圧力検出信号は制ｊ１装置に伝達される一
制御装置１２には、第３図のような、ノズル９から一定
流量のエアーを放出した場合における、エアーの放出圧
力に対応したコブルガード５の先端とワークロール１の
外周面間の間隙ｌが記憶されていて、予め設定した間隙
２゜と比較され、その偏差に応じてモータ駆動信号１３
を駆動モータ８に伝達して駆動モータによりコブルガー
ド５を移動させ、間隙ｌが設定値１０になるように調整
する。9 is an air discharge nozzle attached to the tip of the Cobble Guard 5, the tip of which is installed at the same position as the tip of the Cobble Guard, and a constant flow of air is passed through the pipe 10,
It is designed to be ejected from the nozzle 9. 11 is piping 1
The control device 12 is an air pressure detector installed near the nozzle 9 or a pressure switch activated by a predetermined air pressure, and the air pressure detection signal is transmitted to the control device 12. As shown in the figure, when a constant flow rate of air is released from the nozzle 9, the gap l between the tip of the cobble guard 5 and the outer peripheral surface of the work roll 1 corresponding to the air release pressure is stored, and a preset gap is stored. 2°, and the motor drive signal 13 is adjusted according to the deviation.
is transmitted to the drive motor 8, the cobble guard 5 is moved by the drive motor, and the gap l is adjusted to a set value of 10.
なお前記実施例では、ノズルからはエアーを放出してい
るが、放出する気体はエアーに限ることはない、またコ
ブルガードの移動手段はジヤツキを用いているが、他の
移動装置を用いてもよい。In the above embodiment, air is emitted from the nozzle, but the emitted gas is not limited to air. Also, although a jack is used as the means of moving the Cobble Guard, other moving devices may be used. .
〈発明の効果〉
以上説明したように、本発明は機械的又は電気的な手段
を使用せず、気体のみによりコブルガードの先端とワー
クロールの外周面間の間隙を検出するから、装置が安価
かつ簡単であり、ロールの摩耗もない、また、常にノズ
ルから気体を放出しているので、ノズル先端が詰まるこ
とがなく安定して使用することが可能であり、保守性も
向上する。<Effects of the Invention> As explained above, the present invention detects the gap between the tip of the cobble guard and the outer peripheral surface of the work roll using only gas without using mechanical or electrical means, so the device is inexpensive and It is simple, there is no roll wear, and since gas is constantly emitted from the nozzle, the nozzle tip does not get clogged and can be used stably, improving maintainability.
第１．２図は本発明の方法の一実施例を示し、第１図は
全体説明図、第２図は第１図の要部拡大図である。第３
図はノズルから一定流量のエアーを放出した場合におけ
る、ノズル先端とワークロール外周面間の間隙ｌとエア
ーの放出圧力との関係を示すグラフである。
１・・・ワーク口、−ル、
２・・・バックアップロール、
３・・・金属ストリップ、
５・・・コブルガード、
７・・・間隙調整用ジヤツキ、
８・・・ジヤツキ駆動モータ、
９・・・ノズル、
１１・・・圧力検出器、
１２・・・制御装置。
特許出願人 川崎製鉄株式会社
第１図
第２図1.2 shows an embodiment of the method of the present invention, FIG. 1 is an overall explanatory view, and FIG. 2 is an enlarged view of the main part of FIG. 1. Third
The figure is a graph showing the relationship between the gap l between the nozzle tip and the outer peripheral surface of the work roll and the air discharge pressure when a constant flow rate of air is discharged from the nozzle. DESCRIPTION OF SYMBOLS 1... Work opening, -ru, 2... Backup roll, 3... Metal strip, 5... Cobble guard, 7... Gap adjustment jack, 8... Jacket drive motor, 9... - Nozzle, 11...pressure detector, 12...control device. Patent applicant: Kawasaki Steel Corporation Figure 1 Figure 2
Claims (1)
防ぐコブルガードの位置調整方法において、コブルガー
ドの先端に一定流量の気体を放出するノズルを設け、前
記気体の放出圧力を検出して前記コブルガードの先端と
ワークロールの外周面間の距離を設定することを特徴と
するコブルガードの位置調整方法。In a method for adjusting the position of a cobble guard to prevent a metal strip being rolled from being wrapped around the rolls of a rolling mill, a nozzle that releases a constant flow of gas is provided at the tip of the cobble guard, and the release pressure of the gas is detected to adjust the position of the cobble guard. A cobble guard position adjustment method characterized by setting the distance between the tip and the outer peripheral surface of a work roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082304A JPH0685925B2 (en) | 1988-04-05 | 1988-04-05 | How to adjust the position of the cobble guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082304A JPH0685925B2 (en) | 1988-04-05 | 1988-04-05 | How to adjust the position of the cobble guard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01254303A true JPH01254303A (en) | 1989-10-11 |
| JPH0685925B2 JPH0685925B2 (en) | 1994-11-02 |
Family
ID=13770812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63082304A Expired - Fee Related JPH0685925B2 (en) | 1988-04-05 | 1988-04-05 | How to adjust the position of the cobble guard |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0685925B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147828A1 (en) * | 2000-04-20 | 2001-10-24 | Danieli & C. Officine Meccaniche SpA | Cooling device for rolling rings and relative method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938973A (en) * | 1972-08-18 | 1974-04-11 | ||
| JPS5133659A (en) * | 1974-09-17 | 1976-03-22 | Mitsubishi Heavy Ind Ltd | YOSETSUKAISAKIICHIKENSHUTSUSOCHI |
| JPS5331734A (en) * | 1976-09-04 | 1978-03-25 | Huels Chemische Werke Ag | Coating agent |
| JPS6016405U (en) * | 1982-12-20 | 1985-02-04 | 小山 重太郎 | Garbage storage tanks in group living areas, etc. |
-
1988
- 1988-04-05 JP JP63082304A patent/JPH0685925B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938973A (en) * | 1972-08-18 | 1974-04-11 | ||
| JPS5133659A (en) * | 1974-09-17 | 1976-03-22 | Mitsubishi Heavy Ind Ltd | YOSETSUKAISAKIICHIKENSHUTSUSOCHI |
| JPS5331734A (en) * | 1976-09-04 | 1978-03-25 | Huels Chemische Werke Ag | Coating agent |
| JPS6016405U (en) * | 1982-12-20 | 1985-02-04 | 小山 重太郎 | Garbage storage tanks in group living areas, etc. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147828A1 (en) * | 2000-04-20 | 2001-10-24 | Danieli & C. Officine Meccaniche SpA | Cooling device for rolling rings and relative method |
| US6499328B2 (en) | 2000-04-20 | 2002-12-31 | Danieli & C. Officine Meccaniche S.P.A. | Cooling device for rolling rings and relative method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0685925B2 (en) | 1994-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |