JPS62130961A - Control method for tension of metal strip - Google Patents
Control method for tension of metal stripInfo
- Publication number
- JPS62130961A JPS62130961A JP27033285A JP27033285A JPS62130961A JP S62130961 A JPS62130961 A JP S62130961A JP 27033285 A JP27033285 A JP 27033285A JP 27033285 A JP27033285 A JP 27033285A JP S62130961 A JPS62130961 A JP S62130961A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- metal strip
- linear motor
- metal band
- metal
- 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.)
- Pending
Links
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- Advancing Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は金属帯の張力を制御する方法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a method of controlling tension in a metal strip.
（従来の技術）
従来の金属帯の張力制御法の一例として、第６図に示さ
れたプライドルロールによる方法が公知である。この方
法は金属帯１と回転ロール４，４′との間の摩擦力を利
用して、金属帯１の進行方向２及び進行と逆の方向に金
属帯１を引張ることによって、１対のプライドルロール
４，４′にはさまれた区間内３の張力を該区間外の金濁
帯の張力とは独立して制御するものである。(Prior Art) As an example of a conventional tension control method for a metal strip, a method using a priddle roll shown in FIG. 6 is known. This method utilizes the frictional force between the metal strip 1 and the rotating rolls 4, 4' to pull the metal strip 1 in the direction 2 in which the metal strip 1 moves and in the opposite direction to the direction in which the metal strip 1 moves. The tension in the section 3 sandwiched between the rolls 4, 4' is controlled independently of the tension in the cloudy zone outside the section.
しかしながらこの方法では金属帯と回転ロールとの間の
摩擦力をその基本原理としているために、ロール表面に
ピルドアラグと呼ばれる固着物生成現象があって、金属
帯に疵が転写され、製品処暑及び品質を著しく損なうと
いう問題点がある。また、金属帯をロールに巻付けるこ
とによって発生する金属帯の曲げ歪み、いわゆる°”腰
折れ″を防止するために、外径の大きなロールを用いる
必要があり、それらの大径ロールを第６図のように配置
するためには、大きな設置スＲ−スを必要とし、設備費
が屁むこと、及び既設備への追加設置が困難であること
等の問題があって、その適用には限界がある。However, since this method uses the frictional force between the metal strip and the rotating roll as its basic principle, a phenomenon called pilled lag occurs on the roll surface, causing defects to be transferred to the metal strip, resulting in poor product quality and quality. There is a problem in that it significantly impairs the In addition, in order to prevent bending distortion of the metal band, so-called "waist bending", which occurs when the metal band is wound around a roll, it is necessary to use a roll with a large outer diameter. In order to arrange it like this, there are problems such as a large installation space is required, equipment costs increase, and it is difficult to install additional equipment to existing equipment, so there are limits to its application. There is.
（発明が解決しようとする問題点）
本発明は、かかる従来の張力制御方法の問題点を解決す
るためになされたものである。(Problems to be Solved by the Invention) The present invention has been made in order to solve the problems of the conventional tension control method.
（問題点を解決するための手段） 本発明の要旨は下記のとおりである。(Means for solving problems) The gist of the present invention is as follows.
（１）連続的に移送される金属帯のノｆスライン内で、
金属帯の少なくとも片面側に、金属帯に対してその進行
方向又はその進行と逆の方向に推進力を与える少なくと
も１台以上のリニアモータを設け、該リニアモータより
入側の区間の金属帯の張力と、該リニアモータより出側
の区間の金属帯の張力とを分割して制御することを特徴
とする金属帯の張力制御方法。(1) Within the nof line of the metal strip that is continuously transferred,
At least one or more linear motors are provided on at least one side of the metal band to provide a propulsion force to the metal band in the direction of movement or in the opposite direction to the movement of the metal band, and A method for controlling the tension of a metal strip, characterized in that the tension and the tension of the metal strip in the section on the exit side of the linear motor are controlled separately.
（２）連続的に移送される金属帯のノ４？スライン内で
、金属帯に対してその進行方向に推進力を与える第１の
ＩＪ ニアモータと、金属帯に対してその進行と逆の方
向に推進力を与える第２のＩＪ ニアモータとを一対と
するリニアモータ群を、少なくとも一対以上設け、第１
のＩＪ ニアモータ及び第２のリニアモータにはさまれ
た区間内の金属帯の張力分、該区間外の金属帯の張力よ
り分離して制御することを特徴とする金属帯の張力制御
方法。(2) Continuously transferred metal strip No. 4? Inside the line, a pair of first IJ near motor provides a propulsive force to the metal strip in the direction of its movement, and a second IJ near motor provides a propulsive force to the metal band in the opposite direction to its progress. At least one pair or more of linear motor groups are provided, and a first
A method for controlling the tension of a metal strip, characterized in that the tension of the metal strip within the section sandwiched between the IJ near motor and the second linear motor is controlled separately from the tension of the metal strip outside the section.
本発明の原理を第１図を用いて説明する。The principle of the present invention will be explained using FIG.
金属帯１は進行方向２に連続的に移送されており、区間
３内の張力が、人出側プライドルロール４．４′によっ
て作用する力１５ 、１５’により保たれている。この
とき１区間３内にリニアモータ５゜５′を設置し、金属
帯１の例えば進行方向２に推進力８を金属帯１に対して
及ぼしている。このとき該リニアモータ５，５′より入
側の区間３′において金属帯に作用する張力は、プライ
ドルロール４゜４′による張力に、リニアモータ５，５
′の推進力８による張力を加えたものとなシ、一方該リ
ニアモータ５，５′より出側の区間３Ｉにおいて金属帯
に作用する張力は、逆にプライドルロール４．４′によ
る張力からリニアモータ５，５′の推進力８による張力
を減じたものとなる。従って、区間３内において、リニ
アモータ５，５′の推進力８を制御すれば５区間３内の
小区間３′と小区間３′の張力とを分割して制御するこ
とができる。The metal strip 1 is continuously transported in the direction of travel 2, the tension in the section 3 being maintained by the forces 15, 15' exerted by the exit side pry rolls 4.4'. At this time, a linear motor 5.degree. 5' is installed within one section 3, and applies a propulsive force 8 to the metal strip 1 in, for example, the traveling direction 2 of the metal strip 1. At this time, the tension acting on the metal strip in the section 3' on the entrance side from the linear motors 5, 5' is the tension due to the priddle roll 4°4',
On the other hand, the tension acting on the metal strip in the section 3I on the outlet side from the linear motors 5 and 5' is the tension due to the tension caused by the priddle rolls 4 and 4'. This results in a reduction of the tension caused by the propulsive force 8 of the motors 5, 5'. Therefore, by controlling the propulsive force 8 of the linear motors 5, 5' within the section 3, the tension of the small section 3' and the small section 3' within the 5 sections 3 can be divided and controlled.
以上の例では、リニアモータ５，５′の推進力８が、金
属帯１の進行方向２と一致する場合について述べたが、
推進力８と金属帯の進行方向が逆の場合も以上の原理は
同様である。In the above example, the propulsive force 8 of the linear motors 5, 5' coincides with the traveling direction 2 of the metal band 1, but
The above principle is the same even when the propulsion force 8 and the direction of movement of the metal band are reversed.
本発明の他の適用方法を第２図によって説明する。Another application method of the present invention will be explained with reference to FIG.
人出側プライドルロール４，４′にはさまれた区間内に
、第１のリニアモータ６１６′及び第２のリニアモータ
７．７′が設置され１区間３をはさんでいる。該区間３
の入側に設置された第１のＩＪ ニアモータ６．６′は
金属帯１の進行方向２に推進力８を与えている。一方、
該区間３の出側に設置された第２のリニアモータ７．７
′は金属帯１の進行方向２と逆方向に推進力９を与えて
いる。その結果、該区間３内において金属帯１に作用す
る張力は第１のリニアモータ６．６’、第２のリニアモ
ータ７゜７′による推進力８及び９によって、該区間３
以外の張力とは分離して付与することが可能となる。A first linear motor 616' and a second linear motor 7.7' are installed in the section sandwiched between the exit side priddle rolls 4 and 4', sandwiching one section 3. Section 3
A first IJ near motor 6,6' installed on the entry side of the metal strip 1 provides a propulsive force 8 in the traveling direction 2 of the metal strip 1. on the other hand,
A second linear motor 7.7 installed on the exit side of the section 3
' gives a propulsive force 9 in a direction opposite to the traveling direction 2 of the metal band 1. As a result, the tension acting on the metal strip 1 in the section 3 is reduced by the propulsive forces 8 and 9 from the first linear motor 6.6' and the second linear motor 7'7'.
It becomes possible to apply the tension separately from other tensions.
また、推進力８及び９の強さを制御することによって、
該区間３内において、金属帯１に作用する張力の強さを
自由に制御することができる。In addition, by controlling the strength of the propulsive forces 8 and 9,
Within the section 3, the strength of the tension acting on the metal strip 1 can be freely controlled.
（実施例） 次に本発明の実施例を第３図を用いて説明する。(Example) Next, an embodiment of the present invention will be described with reference to FIG.
図は金属帯の連続焼鈍炉を模式的に表わしたものである
。金属帯ｌは前工程より２の方向に連続的に移送され、
加熱帯１０．均熱帯１１、徐冷帯１２、急冷帯１３を経
て１次工程へと進む。従来の連続焼鈍設備では、加熱帯
１０の入側及び急冷帯１３の出側に、各々入側プライド
ルロール４及び出側プライドルロール４′を設け１両プ
ライドルａ−ルにはさまれ九区間内の金属帯の張力を、
入側設備、出側設備における張力より緩和して制御して
いた。これは連続焼鈍過程の高温域で金属帯１に過大な
張力を与えると、金属帯に伸び変形等の好ましくない影
響を与えるためである。しかしながら、一方今成帯１の
通板の安定性を確保するためには、金属帯の張力をある
程度確保することが必要でおる。The figure schematically represents a continuous annealing furnace for metal strips. The metal strip l is continuously transferred from the previous process in two directions,
Heating zone 10. The product passes through a soaking zone 11, slow cooling zone 12, and rapid cooling zone 13 before proceeding to the first step. In conventional continuous annealing equipment, an inlet prydle roll 4 and an outlet prydle roll 4' are provided on the inlet side of the heating zone 10 and the outlet side of the quenching zone 13, respectively, and are sandwiched between one prydle roll and within nine sections. The tension of the metal strip is
The tension was controlled by easing the tension at the entry and exit equipment. This is because if excessive tension is applied to the metal band 1 in the high temperature range of the continuous annealing process, undesirable effects such as elongation and deformation will occur on the metal band. However, on the other hand, in order to ensure the stability of the threading of the Imanari strip 1, it is necessary to ensure the tension of the metal strip to a certain extent.
ところで、連続焼鈍過程の高温域で、金属帯に伸び変形
を与えない張力の値は、金属帯の温度レベル及び金属帯
の物性値によって定まる。したがって、上記の高温域で
の張力緩和及び通板安定性確保のための張力の確保とい
う二つの相反する目的を最大限に満足させるためには、
金属帯の高温部特に均熱帯における張力を他の帯域より
緩和して伸び変形を防止すると共に、均熱帯以外の帯域
では各々の金属帯温度において伸び変形が発生しない範
囲で安定通板に必要な張力を確保する必要がある。この
ためには、均熱帯１１の入側及び出側に、張力制御装置
を設置する必要があるが、従来のプライドルロールを用
いる方法では、以下の問題点がおってその適用は不可能
である。By the way, the value of the tension that does not cause elongation deformation to the metal band in the high temperature range of the continuous annealing process is determined by the temperature level of the metal band and the physical property values of the metal band. Therefore, in order to fully satisfy the two contradictory objectives of tension relaxation in the high temperature range and securing tension to ensure sheet threading stability,
The tension in the high-temperature parts of the metal strip, especially in the soaking zone, is relaxed compared to other zones to prevent elongation deformation, and in zones other than the soaking zone, the tension required for stable strip threading is maintained within the range where elongation deformation does not occur at each metal strip temperature. It is necessary to ensure tension. For this purpose, it is necessary to install tension control devices on the entrance and exit sides of the soaking zone 11, but the conventional method using priddle rolls has the following problems and cannot be applied. .
（１） 炉内でプライドルロールを使用すると、ビル
ドアップと呼ばれるロール表面への固着物の生成現象が
起きて、金属帯の外観及び品質を著しく損なう。(1) When a priddle roll is used in a furnace, a phenomenon called build-up occurs in which solid matter forms on the roll surface, which significantly impairs the appearance and quality of the metal strip.
（２）既設炉の炉内に、プライドル装置を設置する為に
は、基礎や架台を含めた強固な設備構造にしておく必要
があシ、建設費用及び改造工程が膨大なものとなシ、現
実には実行できないことが多い。(2) In order to install a pridle device inside an existing furnace, it is necessary to have a strong equipment structure including the foundation and pedestal, and the construction cost and modification process will be enormous. In reality, this is often not possible.
しかし１本発明による張力制御方法を用いれば。However, if one uses the tension control method according to the present invention.
即ち第３図に示す如く、均熱帯１１０入側に第１のリニ
アモータ６．６’、出側に第２のリニアモータ７，７′
を設けて張力制御を実施すればそれらの問題点を解決す
ることが可能である。即ち、第１に本発明の張力制御方
法は、金属帯との摩擦力を利用しない非接触方式である
ため、ビルドアップ現象は発生しないという利点、第２
に、既設炉内に設置する場合もＩＪ ニアモータ本体の
みを設置するだけでよいため、比較的小規模の工事で設
置することが可能であるという利点があるからである。That is, as shown in FIG. 3, a first linear motor 6, 6' is installed on the entrance side of the soaking zone 110, and a second linear motor 7, 7' is installed on the exit side of the soaking zone 110.
These problems can be solved by providing tension control. That is, firstly, the tension control method of the present invention is a non-contact method that does not utilize frictional force with the metal strip, so there is no build-up phenomenon.
Another advantage is that even when installed in an existing furnace, only the IJ near motor body needs to be installed, so it can be installed with relatively small-scale construction work.
第４図は１本実施例における張力の分布を示したもので
アシ、本例実施前の張力分布と比較して明らかなように
、高温部での張力の緩和と、それ以外の区間での張力の
確保という二つの相反する条件を満たすことができてい
る。Figure 4 shows the tension distribution in this example.As is clear from the comparison with the tension distribution before implementation of this example, there is a relaxation of tension in the high-temperature section and a reduction in tension in other sections. The two contradictory conditions of securing tension can be met.
本発明を実施して以来、この熱処理炉では１通板の安定
性が著しく向上し、炉内における板破断。Since implementing the present invention, the stability of one plate in this heat treatment furnace has been significantly improved, and the plate breakage in the furnace has been significantly improved.
ヒートバックル、板道外れによる疵発生等が全く発生し
ていない。There were no occurrences of heat buckles or flaws due to the board coming off the track.
第５図は、本発明の他の実施例でちる。金属帯１は連続
焼鈍炉内をガスノズル１４からガスを金属帯】の上下面
に吹きつけることによって、浮揚状態のｔま移送されて
いる。かかる非接触通板中の金属帯ｌの張力を制御する
ためには１本発明の非接触方式の張力制御方法が不可欠
である。FIG. 5 shows another embodiment of the invention. The metal strip 1 is transported in a floating state through a continuous annealing furnace by blowing gas from a gas nozzle 14 onto the upper and lower surfaces of the metal strip. In order to control the tension of the metal strip l during such non-contact threading, the non-contact tension control method of the present invention is essential.
（発明の効果）
本発明によれば、金属帯の高温域における張力制御を適
確に行なうことが可能となり、通板の安定性が高まるの
で、生産性を飛Ｐ的に向上させることが可能と力る。ま
た非接触方式の熱処理炉については、従来有効な張力制
御手段がなかったので、低速度のラインしか実用化され
ていなかったが１本発明に従えば、張力制御手段が実用
化される見通しが立ったため、高速度通板が可能と々す
、生産性の向上や製造コストの低減に顕著な効果を奏し
うるものである。(Effects of the Invention) According to the present invention, it is possible to accurately control the tension of the metal strip in the high temperature range, and the stability of threading is increased, so productivity can be dramatically improved. I force myself. Regarding non-contact type heat treatment furnaces, there was no effective tension control means in the past, so only low-speed lines were put into practical use.However, if the present invention is followed, there is a prospect that tension control means will be put into practical use. Because it stands upright, high-speed sheet threading is possible, which can have a significant effect on improving productivity and reducing manufacturing costs.
第１図および第２図は本発明の張力制御法の原理の説明
図、第３図は本発明の実施の態様を示す説明図、第４図
は本発明及び従来例の連続焼鈍炉の炉内張力分布を示す
図、第５図は本発明の他の実施の態様を示す説明図、第
６図は従来の張力制御方法の原理の説明図である。
１：金属帯、２：金属帯走行方向、３：張力制御を実施
する区間、４：入側プライドルロール、４′：出側プラ
イドルロール、５１５’：ＩＪニア モータ、６ 、６
’ ：金属帯の進行方向に推進力を与える第１のリニア
モータ、７ 、７’ ：金ＦＡ帝の進行と逆方向に推進
力を与える第２のリニアモータ、８：第１のＩＪ ニア
モータが金属帯１に与える推進力、９：第２のリニアモ
ータが金属帯ｌに与える推進力、１０：加熱帯、１１：
均熱帯、１２：徐冷帯。
１３：急冷帯、１４：金属帯を浮揚支持するためのガス
ノズル、１５ 、１５’ ： 金属帯に作用する張力。
第３図
第４図
ン ンFigures 1 and 2 are explanatory diagrams of the principle of the tension control method of the present invention, Figure 3 is an explanatory diagram showing an embodiment of the present invention, and Figure 4 is a diagram of continuous annealing furnaces of the present invention and conventional examples. FIG. 5 is a diagram showing the internal tension distribution, FIG. 5 is an explanatory diagram showing another embodiment of the present invention, and FIG. 6 is an explanatory diagram of the principle of the conventional tension control method. 1: Metal band, 2: Metal band running direction, 3: Section for performing tension control, 4: Entry side priddle roll, 4': Output side priddle roll, 515': IJ near motor, 6, 6
': The first linear motor that provides propulsion in the direction of movement of the metal strip, 7, 7': The second linear motor that provides propulsion in the opposite direction to the movement of the metal belt, 8: The first IJ near motor Propulsive force applied to metal band 1, 9: Propulsive force applied to metal band l by the second linear motor, 10: Heating band, 11:
Soaking zone, 12: Cooling zone. 13: Quenching zone, 14: Gas nozzle for floating support of the metal strip, 15, 15': Tension acting on the metal strip. Figure 3 Figure 4
Claims (2)
属帯の少なくとも片面側に、金属帯に対してその進行方
向又はその進行と逆の方向に推進力を与える少なくとも
１台以上のリニアモータを設け、該リニアモータより入
側の区間の金属帯の張力と、該リニアモータより出側の
区間の金属帯の張力とを分割して制御することを特徴と
する金属帯の張力制御方法。(1) Within the pass line of the metal strip that is continuously transported, at least one or more units that apply a propulsive force to the metal strip in the direction of movement or in the opposite direction to the movement of the metal band on at least one side of the metal band. Tension control of a metal band characterized in that a linear motor is provided, and the tension of the metal band in a section on the entry side of the linear motor and the tension of the metal band in a section on the exit side of the linear motor are controlled separately. Method.
属帯に対してその進行方向に推進力を与える第１のリニ
アモータと、金属帯に対してその進行と逆の方向に推進
力を与える第２のリニアモータとを一対とするリニアモ
ータ群を、少なくとも一対以上設け、第１のリニアモー
タ及び第２のリニアモータにはさまれた区間内の金属帯
の張力を、該区間外の金属帯の張力より分離して制御す
ることを特徴とする金属帯の張力制御方法。(2) A first linear motor that provides a propulsion force to the metal band in the direction of movement within the path line of the metal band that is continuously transported, and a first linear motor that propels the metal band in the opposite direction to the movement of the metal band. At least one pair of linear motor groups including a second linear motor that applies force is provided, and the tension of the metal band in the section sandwiched between the first linear motor and the second linear motor is controlled by the tension in the section. A method for controlling the tension of a metal strip, characterized in that the tension is controlled separately from the tension of an outer metal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27033285A JPS62130961A (en) | 1985-11-30 | 1985-11-30 | Control method for tension of metal strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27033285A JPS62130961A (en) | 1985-11-30 | 1985-11-30 | Control method for tension of metal strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62130961A true JPS62130961A (en) | 1987-06-13 |
Family
ID=17484781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27033285A Pending JPS62130961A (en) | 1985-11-30 | 1985-11-30 | Control method for tension of metal strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62130961A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2763266A1 (en) * | 1997-05-13 | 1998-11-20 | Bwg Bergwerk Walzwerk | METHOD INTENDED TO INFLUENCE THE DISTRIBUTION OF STRESS IN METALLIC STRIPS OR PLATES AND DEVICE FOR IMPLEMENTING THE METHOD |
| JP2009078583A (en) * | 2007-09-25 | 2009-04-16 | Honda Motor Co Ltd | Vehicular floor carpet |
| WO2011042934A1 (en) * | 2009-10-07 | 2011-04-14 | 新日本製鐵株式会社 | Cooling apparatus and cooling method for hot rolling |
-
1985
- 1985-11-30 JP JP27033285A patent/JPS62130961A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2763266A1 (en) * | 1997-05-13 | 1998-11-20 | Bwg Bergwerk Walzwerk | METHOD INTENDED TO INFLUENCE THE DISTRIBUTION OF STRESS IN METALLIC STRIPS OR PLATES AND DEVICE FOR IMPLEMENTING THE METHOD |
| JP2009078583A (en) * | 2007-09-25 | 2009-04-16 | Honda Motor Co Ltd | Vehicular floor carpet |
| US8167352B2 (en) | 2007-09-25 | 2012-05-01 | Honda Motor Co., Ltd. | Floor carpet for vehicle |
| WO2011042934A1 (en) * | 2009-10-07 | 2011-04-14 | 新日本製鐵株式会社 | Cooling apparatus and cooling method for hot rolling |
| KR101444564B1 (en) * | 2009-10-07 | 2014-09-24 | 신닛테츠스미킨 카부시키카이샤 | Cooling apparatus and cooling method for hot rolling |
| US9061335B2 (en) | 2009-10-07 | 2015-06-23 | Nippon Steel & Sumitomo Metal Corporation | Cooling apparatus and cooling method for hot rolling |
| EP2486991B1 (en) | 2009-10-07 | 2017-01-25 | Nippon Steel & Sumitomo Metal Corporation | Cooling method for hot rolling |
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