JPH058259B2 - - Google Patents
Info
- Publication number
- JPH058259B2 JPH058259B2 JP58191224A JP19122483A JPH058259B2 JP H058259 B2 JPH058259 B2 JP H058259B2 JP 58191224 A JP58191224 A JP 58191224A JP 19122483 A JP19122483 A JP 19122483A JP H058259 B2 JPH058259 B2 JP H058259B2
- Authority
- JP
- Japan
- Prior art keywords
- tension
- steel strip
- loop car
- bridle
- processing tank
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Advancing Webs (AREA)
Description
【発明の詳細な説明】
本発明はループカーを有する鋼帯の連続処理設
備における鋼帯の張力制御方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the tension of a steel strip in a continuous steel strip processing facility having a loop car.
鋼帯の連続処理設備は、酸洗又は焼鈍処理を行
なう中央部と、コイル受入のための入側部と、コ
イル払出しのための出側部の３つの部分に分けら
れる。このうち、中央部の処理槽では、通板作業
の安定化のため、鋼帯の張力を一定にしておく必
要があるが、入側においては鋼帯に途切れがない
ように次々に鋼帯を溶接し、出側においては、所
定長毎に鋼帯を切断するので、これらの作業中に
も中央部では鋼帯を一定の速度で走らせるため
に、入側部および出側部共にループカーが備えら
れている。 A continuous steel strip processing facility is divided into three parts: a central part where pickling or annealing is performed, an inlet part for receiving coils, and an outlet part for discharging coils. In the central processing tank, it is necessary to keep the tension of the steel strip constant in order to stabilize the threading process, but on the entry side, the steel strips are passed one after another so that there are no breaks in the steel strip. The steel strip is welded and cut into predetermined lengths on the exit side, so a loop car is installed on both the entry and exit sides in order to run the steel strip at a constant speed during these operations. It is equipped.
しかして、入側でループカーが移動している間
も中央部（処理槽）で鋼帯の張力を一定に維持す
る必要があるので、従来は、処理槽の鋼帯張力を
一定にするため、多くの場合、テンシヨンメータ
により張力制御を行なつている。すなわち、コイ
ル受入のための入側部のループカーと中央部の処
理槽の間にテンシヨンメータやダンサーロールを
設置して、これらで鋼帯の張力を検出して入側ブ
ライドルロールの電動機のトルクを制御して処理
槽に入る鋼帯の張力を一定にすることを行なつて
いる。この方法によれば、鋼帯の張力を一定にす
ることは可能であるが、設備費、特にテンシヨン
メータやダンサーロールを処理槽の入側に設ける
などの設備上のコストおよびそれらの検出張力を
フイードバツクしてブライドルロールのトルクを
制御する電気制御系の設計および設備のコストが
高くなるという欠点がある。 However, while the loop car is moving on the entry side, it is necessary to keep the tension of the steel strip constant in the central part (processing tank). In many cases, tension control is performed using a tension meter. In other words, a tension meter and a dancer roll are installed between the loop car on the entry side for receiving coils and the processing tank in the center, and these detect the tension in the steel strip and calculate the torque of the electric motor of the entry bridle roll. The tension of the steel strip entering the treatment tank is controlled to be constant. According to this method, it is possible to keep the tension in the steel strip constant, but equipment costs, especially equipment costs such as installing a tension meter and dancer roll on the inlet side of the treatment tank, and the detected tension The drawback is that the design and equipment costs for the electrical control system that controls the torque of the bridle roll by feedback is high.
本発明は処理槽の鋼帯の張力を一定にするため
の設備コストを低減する事を目的とする。 The present invention aims to reduce the cost of equipment for keeping the tension of the steel strip in the treatment tank constant.
処理槽の鋼帯の張力の変動の最も大きな原因は
入側部のループカーの移動である。そこで本発明
では、ループカーの移動中にそれによる張力変動
を、ループカーと処理槽の間のブライドルロール
の駆動電動機の通電電流、つまりはブライドルロ
ールのトルクで補償する。 The most significant cause of fluctuations in the tension of the steel strip in the treatment tank is the movement of the loop car at the entrance. Therefore, in the present invention, the tension fluctuation caused by the movement of the loop car is compensated for by the current supplied to the drive motor of the bridle roll between the loop car and the processing tank, that is, the torque of the bridle roll.
以下に図面を参照して本発明を詳細に説明す
る。第１図は本発明を一態様で実施する連続処理
設備の主に入側部のループカーを主体に示す概略
図である。鋼帯１は入側部のブライドルロール２
のあと、ループカーによつて中央部と連結され
る。ループカーは、複数個の鋼帯張架ローラを装
備した台車３と、１台のトルクモータLMにスリ
ツプクラツチ（トルクリミツタ）を介して結合し
た複数個のワイヤ巻取ドラムを装備した固定部４
と、ワイヤ巻取ドラムに巻回され、それぞれが台
車３の鋼帯張架ローラの枢着部に結合されたワイ
ヤで構成されており、台車３が左方に駆動される
ことにより固定ローラSRと台車３間の鋼帯溜込
量が少なくなり、台車３が右方に駆動されること
により固定ローラSRと台車３間の鋼帯溜込量が
多くなる。入側で入側ブライドルロールラ２に至
るまでに、先行鋼帯の尾端に、後行鋼帯の先頭が
溶接されるが、このとき、先行鋼帯の尾端が低速
又は停止とされ、この低速又は停止中は台車３が
左方に駆動され、固定ローラSRと台車３間の鋼
帯をループカー直後のブライドルローラ５に送り
出す。先行鋼帯の尾端に、後行鋼帯の先頭を溶接
すると、鋼帯が入側に送られるようになり、台車
３を右方に駆動して固定ローラSRと台車３間の
鋼帯溜込量を多くする。 The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram mainly showing a loop car on the entrance side of a continuous processing facility implementing one embodiment of the present invention. Steel strip 1 is the bridle roll 2 on the entry side
After that, it will be connected to the central part by a loop car. The loop car includes a trolley 3 equipped with a plurality of steel strip tension rollers, and a fixed section 4 equipped with a plurality of wire winding drums connected to one torque motor LM via a slip clutch (torque limiter).
and a wire wound around a wire winding drum, each of which is connected to the pivot joint of the steel strip tension roller of the truck 3. When the truck 3 is driven to the left, the fixed roller SR The amount of steel strip stored between the fixed roller SR and the truck 3 decreases, and the amount of steel strip stored between the fixed roller SR and the truck 3 increases as the truck 3 is driven to the right. The leading edge of the trailing steel strip is welded to the tail end of the leading steel strip before reaching the entrance bridle roller 2 on the entry side, but at this time, the tail end of the leading steel strip is at low speed or stopped; During this low speed or stopped state, the truck 3 is driven to the left, and the steel strip between the fixed roller SR and the truck 3 is sent to the bridle roller 5 immediately behind the loop car. When the leading edge of the trailing steel strip is welded to the tail end of the leading steel strip, the steel strip will be sent to the entry side, and the bogie 3 will be driven to the right to fill the steel strip reservoir between the fixed roller SR and the bogie 3. Increase the amount of filling.
このような連続処理設備ではループカーの移動
時に次の如き張力変動が発生する。 In such continuous processing equipment, the following tension fluctuations occur when the loop car moves.
(1) 入側部から鋼帯を高速で送り込む場合（台車
３を右方に駆動）、固定ローラSRと台車３の間
では、鋼帯の入口張力（矢印１ａの方向）が低
くなる。ループカー内の合計張力は一定に設定
されているから、出口張力（矢印１ｂの方向）
が高くなる。この出口張力１ｂは、ブライドル
ロール５を通過して処理槽６内の鋼帯の張力１
ｃを過大にする。(1) When feeding the steel strip at high speed from the entry side (driving the cart 3 to the right), the entrance tension of the steel strip (in the direction of arrow 1a) becomes low between the fixed roller SR and the cart 3. Since the total tension inside the loop car is set constant, the exit tension (in the direction of arrow 1b)
becomes higher. This outlet tension 1b is equal to the tension 1 of the steel strip passing through the bridle roll 5 and inside the treatment tank 6.
Excessive c.
(2) 入側部が低速又は停止になり、ループカーで
鋼帯を溜め込まない場合、あるいはループカー
の溜込を送り出す場合には、ループカー入口張
力１ａは高くなり、出口張力１ｂは低くなる。
この結果、処理槽６内の張力１ｃは低くなりす
ぎる。(2) When the entrance side is at low speed or stopped and the loop car does not store the steel strip, or when the loop car's storage is sent out, the loop car entrance tension 1a becomes high and the exit tension 1b becomes low.
As a result, the tension 1c in the processing tank 6 becomes too low.
なお、従来はこのような問題を改善するため
に、前述のように、ループカー直後ブライドル５
と処理槽６の間にテンシヨンメータ又はダンサー
ロールを装備してそれらで張力を検出し、張力が
一定になるようにブライドルローラ５のトルクを
制御していた。 Conventionally, in order to improve this problem, as mentioned above, the bridle 5 was removed immediately after the loop car.
A tension meter or a dancer roll is installed between the processing tank 6 and the processing tank 6 to detect the tension, and the torque of the bridle roller 5 is controlled so that the tension is constant.
本発明では、ループカーの駆動に連動してルー
プカー直後ブライドルローラ５のトルクを制御し
て、テンシヨンメータなしで張力変動を補償す
る。このため、ブライドルローラ５を駆動する電
動機の通電電流１１ａを制御する電動機制御装置
１１を備えている。 In the present invention, the torque of the bridle roller 5 immediately after the loop car is controlled in conjunction with the drive of the loop car, thereby compensating for tension fluctuations without a tension meter. For this reason, a motor control device 11 that controls the current 11a of the motor that drives the bridle roller 5 is provided.
１１ｂは電流設定信号であり、電動機制御装置
１１はこの信号１１ｂにループカー移動補償信号
１２ａを加えた（加、減算）値に応じた電流１１
ａをブライドルローラ５の電動機に流す。１２
は、ループカーの移動に同期して、その移動方向
および速度に応じたループカー移動補償信号１２
ａを発生する処理槽内張力制御装置である。処理
槽内張力制御装置１２には、ワイヤ巻取ドラムに
連結されたロータリーエンコーダ１２ｃより、ワ
イヤ巻取ドラムの回転方向を示す信号および、所
定角度の回転につき１パルスの回転周期パルスが
印加される。これらはループカーの移動方向およ
び移動速度を示す。処理槽内張力制御装置１２
は、回転方向を示す信号で極性を定めかつ回転同
期パルスの周波数に比例した電圧、すなわちルー
プカー移動補償信号１２ａを発生する。 11b is a current setting signal, and the motor control device 11 sets the current 11 according to the sum (addition, subtraction) of the loop car movement compensation signal 12a to this signal 11b.
a to the electric motor of the bridle roller 5. 12
is synchronized with the movement of the loop car and generates a loop car movement compensation signal 12 according to its moving direction and speed.
This is a processing tank tension control device that generates a. A signal indicating the rotational direction of the wire winding drum and a rotation period pulse of one pulse per rotation of a predetermined angle are applied to the processing tank tension control device 12 from a rotary encoder 12c connected to the wire winding drum. . These indicate the direction and speed of the loop car's movement. Treatment tank internal tension control device 12
generates a voltage whose polarity is determined by a signal indicating the direction of rotation and which is proportional to the frequency of the rotation synchronization pulse, that is, a loop car movement compensation signal 12a.
電動機制御装置１１は、定常時（ループカーが
動いていないとき）に処理槽６の鋼帯に所定の張
力を与える設定信号１１ｂにループカー移動補償
信号１２ａを加えた（信号１２ａの極性がプラス
のときは加算、マイナスのときは減算）値に対応
した電流１１ａをブライドルローラ５を駆動する
電動機に通電する。 The motor control device 11 adds a loop car movement compensation signal 12a to a setting signal 11b that applies a predetermined tension to the steel strip in the treatment tank 6 during steady state (when the loop car is not moving) (when the polarity of the signal 12a is positive) is added, and when it is negative, it is subtracted) A current 11a corresponding to the value is applied to the electric motor that drives the bridle roller 5.
第２図に、本発明の実施による、ループカー移
動時のブライドルローラ５駆動電動機の通電電流
１１ａを示す。図においてA0はループカーの速
度を、B2は通電電流１１ａを、B1は処理槽６内
鋼帯の張力を、またA1は本発明を実施しないと
きの処理槽６内の鋼帯の張力を示す。 FIG. 2 shows the energizing current 11a of the bridle roller 5 drive motor during the loop car movement according to the embodiment of the present invention. In the figure, A 0 is the speed of the loop car, B 2 is the current 11a, B 1 is the tension of the steel strip in the treatment tank 6, and A 1 is the tension of the steel strip in the treatment tank 6 when the present invention is not carried out. Indicates tension.
以上の通り本発明によれば、ループカーの移動
を示す信号を処理し、ブライドルローラ駆動電動
機の付勢回路に補償信号を加える回路を付加する
という簡単な装備により、処理槽内鋼帯の過大な
張力変動を防止し、安定した運転が可能になる。 As described above, according to the present invention, by simply adding a circuit that processes a signal indicating the movement of the loop car and adds a compensation signal to the energizing circuit of the bridle roller drive motor, the excessive amount of steel strip in the processing tank can be reduced. Prevents tension fluctuations and enables stable operation.
第１図は本発明を一態様で実施する連続処理設
備を示すブロツク図である。第２図は本発明の実
施による、ループカー移動時のブライドルローラ
５駆動電動機の通電電流と、処理槽内鋼帯の張力
を示すグラフである。
１：鋼帯、２：入側ブライドルローラ、SR：
固定ローラ、３：ループカーの台車、４：ループ
カーの固定部、５：ループカー直後ブライドルロ
ーラ、６：連続処理槽、７：出側ブライドルロー
ラ、１１：電動機制御装置、１２：処理槽内張力
制御装置、LM：ループカー駆動モータ、１２
ｃ：ロータリーエンコーダ。
FIG. 1 is a block diagram showing a continuous processing facility implementing one embodiment of the present invention. FIG. 2 is a graph showing the current applied to the bridle roller 5 driving motor and the tension of the steel strip in the processing tank during movement of the loop car according to the present invention. 1: Steel strip, 2: Entry side bridle roller, SR:
Fixed roller, 3: Loop car trolley, 4: Fixed part of loop car, 5: Bridle roller immediately after the loop car, 6: Continuous processing tank, 7: Output side bridle roller, 11: Electric motor control device, 12: Tension control device in processing tank , LM: loop car drive motor, 12
c: Rotary encoder.
Claims (1)
いて、 ループカー移動時に発生する処理槽内のストリ
ツプ張力変動を、ループカーの移動を示す信号を
処理して処理槽入口のブライドルロールを駆動す
る電動機の付勢回路に補償信号を加えて、該電動
機の通電電流を変えることによつて吸収すること
を特徴とする、連続処理設備のストリツプ張力制
御方法。[Claims] 1. In a continuous processing facility for steel strips having a loop car, strip tension fluctuations in the processing tank that occur when the loop car moves are processed by a signal indicating the movement of the loop car to drive a bridle roll at the entrance of the processing tank. 1. A method for controlling strip tension in continuous processing equipment, characterized in that the strip tension is absorbed by applying a compensation signal to an energizing circuit of a motor to change the current flowing through the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19122483A JPS6082621A (en) | 1983-10-13 | 1983-10-13 | Process for controlling tension of strip in continuous treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19122483A JPS6082621A (en) | 1983-10-13 | 1983-10-13 | Process for controlling tension of strip in continuous treating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6082621A JPS6082621A (en) | 1985-05-10 |
| JPH058259B2 true JPH058259B2 (en) | 1993-02-01 |
Family
ID=16270957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19122483A Granted JPS6082621A (en) | 1983-10-13 | 1983-10-13 | Process for controlling tension of strip in continuous treating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082621A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2619251B2 (en) * | 1988-01-08 | 1997-06-11 | 株式会社日平トヤマ | Wire saw equipment |
| JPH0460303U (en) * | 1990-09-27 | 1992-05-25 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136934A (en) * | 1980-03-28 | 1981-10-26 | Toshiba Corp | Absorbing device for load fluctuation |
-
1983
- 1983-10-13 JP JP19122483A patent/JPS6082621A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6082621A (en) | 1985-05-10 |
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