JP3164594B2 - How to measure loop amount of continuous line - Google Patents
How to measure loop amount of continuous lineInfo
- Publication number
- JP3164594B2 JP3164594B2 JP04498191A JP4498191A JP3164594B2 JP 3164594 B2 JP3164594 B2 JP 3164594B2 JP 04498191 A JP04498191 A JP 04498191A JP 4498191 A JP4498191 A JP 4498191A JP 3164594 B2 JP3164594 B2 JP 3164594B2
- Authority
- JP
- Japan
- Prior art keywords
- loop
- loop amount
- amount
- continuous line
- measuring
- 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 - Fee Related
Links
Landscapes
- Advancing Webs (AREA)
Description
【０００１】［発明の目的］[Object of the Invention]
【０００２】[0002]
【産業上の利用分野】本発明は、鉄鋼などの帯材の連続
ラインにおける帯材のループ量をループ量検出器を用い
ることなく、演算によって間接的に求める連続ラインの
ループ量測定方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring a loop amount of a continuous line in a continuous line of a strip such as iron or steel by calculation without using a loop amount detector. It is.
【０００３】[0003]
【従来の技術】ループ量検出器を用いないループ量測定
方法の従来の一例を図２に示す。図２において、ループ
ピット１内のループ２のループ長Ｌを測定するときは、
入側および出側速度測定装置３，４の検出信号Ｖ1 とＶ
2の差ΔＶ＝Ｖ1 −Ｖ2 を減算器５で演算し、その演算
結果ΔＶを積算計６で積算することによってループ長Ｌ
を求めている。2. Description of the Related Art FIG. 2 shows an example of a conventional method for measuring a loop amount without using a loop amount detector. In FIG. 2, when measuring the loop length L of the loop 2 in the loop pit 1,
Detection signals V 1 and V of the entrance and exit speed measuring devices 3 and 4
Loop length L by the second difference [Delta] V = V 1 -V 2 calculated by the subtractor 5, accumulates the operation result [Delta] V in the integrated meter 6
Seeking.
【０００４】[0004]
【発明が解決しようとする課題】上記、図２に示す従来
の方法では、イニシャルスタートから入側速度Ｖ1 と出
側速度Ｖ2 の差ΔＶからループ量Ｌを積算しているが、
長期間続けると積算誤差が大きくなり、ループ量の誤差
が溶接点トラッキングのエラーを招くなどの問題があ
る。In the conventional method shown in FIG. 2, the loop amount L is integrated from the difference ΔV between the entrance speed V 1 and the exit speed V 2 from the initial start.
If the operation is continued for a long period of time, the integration error increases, and there is a problem that an error in the loop amount causes an error in welding point tracking.
【０００５】本発明は、上記従来技術の問題点を考慮し
てなされたもので、入側と出側の速度差の積算処理に加
えて、イニシャライズ処理を行うことにより、ループ量
積算誤差を小さくしてループ量測定の精度を向上する合
理的な連続ラインのループ量測定方法を提供することを
目的としている。 ［発明の構成］The present invention has been made in consideration of the above-mentioned problems of the prior art, and reduces the loop amount integration error by performing an initialization process in addition to the integration process of the speed difference between the entrance side and the exit side. It is an object of the present invention to provide a method for measuring the amount of loop in a reasonable continuous line, which improves the accuracy of loop amount measurement. [Configuration of the Invention]
【０００６】[0006]
【課題を解決するための手段と作用】上記目的を達成す
るために、本発明の請求項１は、連続ラインのピットの
中に発生するループ量をピットの入側ライン速度と出側
ライン速度との差の積算によって間接的に求める連続ラ
インのループ量測定方法において、ピットの所定位置に
ループの下端を検出する下限検出センサを設け、この下
限検出センサの検出信号を用いて上記積算によって得ら
れたループ量をピット固有の一定のループ量にイニシャ
ライズ処理し、これによってループ量の積算誤差を小さ
くし、安定した連続ラインの運転が行えるようにしたも
のである。Means and actions for solving the problems are achieved.
In order, a first aspect of the present invention, the loop amount of the continuous line by integration of the difference between the loop amount of exit-side line speed and input side line speed of pits generated in the continuous line pit indirectly determined in the method, the lower limit sensor for detecting the lower end of the loop to a predetermined position in the pit is provided, initialization processing loops amount obtained by the cumulative by using the detection signal of the lower limit detection sensor pit specific constant loop amount and, this small the accumulated error of the loop amount by
Ku It is obtained by the allow the operation of the stable continuous line.
【０００７】[0007]
【実施例】本発明の一実施例を図１に示す。図１は従来
の図２に対して、イニシャライズ用のループ下限検出セ
ンサ７およびイニシャル設定器８が追加されており、他
は従来の図２と同じである。FIG. 1 shows an embodiment of the present invention. FIG. 1 is the same as the conventional FIG. 2 except that a loop lower limit detection sensor 7 for initialization and an initial setting device 8 are added to the conventional FIG.
【０００８】図１において、ループピット１内のループ
２のループ長Ｌを測定するとき、入側および出側速度測
定装置３，４の検出信号Ｖ1 とＶ2 との差ΔＶ＝Ｖ1 −
Ｖ2 を減算器５で求め、この差分ΔＶを積算計６で積算
することは従来の図２の場合と同じである。In FIG. 1, when measuring the loop length L of the loop 2 in the loop pit 1, the difference ΔV = V 1 −V between the detection signals V 1 and V 2 of the entrance and exit speed measuring devices 3 and 4.
The calculation of V 2 by the subtractor 5 and the integration of the difference ΔV by the integrator 6 are the same as in the conventional case of FIG.
【０００９】図１の場合は、さらに光センサ７をループ
ピット１の下限位置に設置し、ループの下端が光路を遮
断したときの光センサ７の信号を用いてループ量積算値
をあらかじめ測定しておいた、そのピットに固有の一定
のループ量にイニシャライズする。In the case of FIG. 1, the optical sensor 7 is further installed at the lower limit position of the loop pit 1, and the loop amount integrated value is measured in advance using the signal of the optical sensor 7 when the lower end of the loop interrupts the optical path. Initialize to a fixed loop amount specific to the pit.
【００１０】例えば、ライン入側でストリップを溶接す
るときは、入側ラインストップによってループ量が小さ
くなり、再運転後は次回の溶接のためにループ量を最大
にしておく必要があるが、上記の下限検出センサ（光セ
ンサ）のオンオフ動作を用いてループを所要の最大量に
イニシャライズすることにより、ストリップ１本ごとに
ループ量の精度が確保される。なお上記の実施例では、
下限検出センサとして光センサを用いているが、この代
りに近接スイッチを用いることも可能である。For example, when welding a strip on the line entrance side, the loop amount is reduced by the line stop on the entrance side, and after restarting, it is necessary to maximize the loop amount for the next welding. By initializing the loop to a required maximum amount using the on / off operation of the lower limit detection sensor (optical sensor), the accuracy of the loop amount is ensured for each strip. In the above embodiment,
Although an optical sensor is used as the lower limit detection sensor, a proximity switch can be used instead.
【００１１】[0011]
【発明の効果】以上説明したように本発明によれば、ル
ープ量を入側と出側の速度差の積算によって間接的に測
定する連続ラインのループ量測定方法において、ループ
の下限を検出してループ量の測定値をイニシャライズし
ているので、ストリップ１本ごとにループ量の精度が確
保される。したがって、積算誤差の累積による測定誤差
が除去され、精度の高いループ量の測定が可能となり、
連続ラインの安定な運転を維持することが可能となる。As described above, according to the present invention, in a continuous line loop amount measuring method for indirectly measuring the loop amount by integrating the speed difference between the entrance side and the exit side, the lower limit of the loop is detected. Since the loop amount measurement value is initialized , the accuracy of the loop amount can be confirmed for each strip.
Is preserved. Therefore, the measurement error due to the accumulation of the integration error is removed, and the measurement of the loop amount with high accuracy becomes possible.
It is possible to maintain stable operation of the continuous line.
【図１】本発明の一実施例を示す系統図。FIG. 1 is a system diagram showing one embodiment of the present invention.
【図２】従来のループ量測定方法の一例を示す系統図。FIG. 2 is a system diagram showing an example of a conventional loop amount measuring method.
１…ループピット、２…ループ、３…入側速度測定装
置、４…出側速度測定装置、５…減算器、６…積算計、
７…下限検出センサ（光センサ）、８…イニシャル設定
器。DESCRIPTION OF SYMBOLS 1 ... Loop pit, 2 ... Loop, 3 ... Incoming side speed measuring device, 4 ... Outgoing side speed measuring device, 5 ... Subtractor, 6 ... Integrator,
7: Lower limit detection sensor (optical sensor), 8: Initial setting device.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B65H 20/24 ──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B65H 20/24
Claims (1)
プ量をピットの入側ライン速度と出側ライン速度との差
の積算によって間接的に求める連続ラインのループ量測
定方法において、ピットの所定位置にループの下端を検
出する下限検出センサを設け、この下限検出センサの検
出信号を用いて上記積算によって得られたループ量をピ
ット固有の一定のループ量にイニシャライズ処理し、ル
ープ量の積算誤差を小さくすることを特徴とする連続ラ
インのループ量測定方法。In a method for measuring a loop amount of a continuous line, a loop amount generated in a pit of the continuous line is indirectly obtained by integrating a difference between a line speed on an entrance side and a line speed on an exit side of the pit. A lower limit detection sensor for detecting the lower end of the loop is provided at the position, and the lower limit detection sensor is detected.
Pin loops amount obtained by the cumulative using out signal
Initialize to a specific loop amount specific to the
A method for measuring the loop amount of a continuous line, characterized by reducing the integration error of the loop amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04498191A JP3164594B2 (en) | 1991-03-11 | 1991-03-11 | How to measure loop amount of continuous line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04498191A JP3164594B2 (en) | 1991-03-11 | 1991-03-11 | How to measure loop amount of continuous line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04280762A JPH04280762A (en) | 1992-10-06 |
| JP3164594B2 true JP3164594B2 (en) | 2001-05-08 |
Family
ID=12706643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04498191A Expired - Fee Related JP3164594B2 (en) | 1991-03-11 | 1991-03-11 | How to measure loop amount of continuous line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3164594B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4446293B2 (en) * | 1999-06-29 | 2010-04-07 | 株式会社ミヤコシ | Infeed device for rotary printing press |
| RU2657176C2 (en) | 2013-07-24 | 2018-06-08 | Конинклейке Филипс Н.В. | Hair styling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134008U (en) * | 1983-02-24 | 1984-09-07 | 株式会社東芝 | Loop detector |
| JP2666074B2 (en) * | 1988-10-11 | 1997-10-22 | 株式会社市金工業社 | Automatic tension control device for feeding long narrow objects |
-
1991
- 1991-03-11 JP JP04498191A patent/JP3164594B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04280762A (en) | 1992-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |