JPH05148696A - Plating current controller - Google Patents

Plating current controller

Info

Publication number
JPH05148696A
JPH05148696A JP33460391A JP33460391A JPH05148696A JP H05148696 A JPH05148696 A JP H05148696A JP 33460391 A JP33460391 A JP 33460391A JP 33460391 A JP33460391 A JP 33460391A JP H05148696 A JPH05148696 A JP H05148696A
Authority
JP
Japan
Prior art keywords
plating
current
correction
adhesion amount
adder
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
Application number
JP33460391A
Other languages
Japanese (ja)
Inventor
Akihiko Yoshida
昭彦 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP33460391A priority Critical patent/JPH05148696A/en
Publication of JPH05148696A publication Critical patent/JPH05148696A/en
Pending legal-status Critical Current

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  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE:To output a plating current for securing the optimum plating amt. to a plating cell by calculating a correction current value from the plating amt. and traveling speed of a material to be plated and correcting the overall current standard. CONSTITUTION:An overall current standard is calculated by a current reference circuit 11 based on the plating condition. Meanwhile, the plating amt. is detected by a detector 12, and the signal is fed to the central processing unit (CPU) 13. A correction value is calculated as an overall current value necessary for correction by the CPU 13 from the change in the plating amt. and the speed feedback value from a line speed detector 2. The correction current value is inputted to an adder 14 and added to the overall current standard from an arithmetic circuit 10. The addition output is added to the output of an adder 8 by an adder 10a, and the sum is supplied to a PI controller 9. The sum is further inputted to plating cells 3a,...3c through distributors 7a,...7c, and an optimum current based on the plating amt. control data is supplied to the plating cells 3a,...3c.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、メッキ対象に対して
最適のメッキ付着量となるようなメッキ電流をメッキセ
ルに供給制御するメッキ電流制御装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plating current control device for controlling the supply of a plating current to a plating cell so that an optimum amount of plating adhered to an object to be plated.

【0002】[0002]

【従来の技術】図2は例えば特公平1−48359号公
報に示された従来のメッキ電流制御装置を示すブロック
図であり、図において、1は矢印p方向に進行するメッ
キ対象としてのストリップ、2はストリップ1のライン
速度を検出するライン速度検出器、3a〜3cはストリ
ップ1にメッキをするメッキセル、4a〜4cはメッキ
セル3a〜3cに供給されるメッキ電流のメッキ電流検
出器、5a〜5cはメッキ電流を供給する整流器であ
る。
2. Description of the Related Art FIG. 2 is a block diagram showing a conventional plating current control device disclosed in, for example, Japanese Patent Publication No. 1-48359, in which 1 is a strip to be plated which progresses in the direction of arrow p, 2 is a line speed detector for detecting the line speed of the strip 1; 3a to 3c are plating cells for plating the strip 1; 4a to 4c are plating current detectors 5a to 5c for plating currents supplied to the plating cells 3a to 3c. Is a rectifier that supplies a plating current.

【0003】また、6a〜6cは整流器5a〜5cを介
してメッキセル3a〜3cに供給する電流が所定値とな
るように制御するコントローラ、7a〜7cはメッキ電
流を分配し、コントローラ6a〜6cに供給する分配
器、8はメッキ電流検出器4a〜4cの出力によりメッ
キ電流の総和を求める加算器、9は比例・積分(以下、
PIという)コントローラであり、出力信号を分配器7
a〜7cに供給する。
Further, 6a to 6c are controllers for controlling the current supplied to the plating cells 3a to 3c through the rectifiers 5a to 5c so as to have a predetermined value, and 7a to 7c distribute the plating current to the controllers 6a to 6c. Distributor to be supplied, 8 is an adder for obtaining the total sum of the plating currents from the outputs of the plating current detectors 4a to 4c, and 9 is a proportional / integral (hereinafter,
PI) controller and outputs the output signal to the distributor 7
a to 7c.

【0004】さらに、10は計算回路であり、ライン速
度検出器2で検出したストリップ1のライン速度と、電
流基準との差を求めて加算器10aに供給する。加算器
10aは加算器8のメッキ電流の総和と、計算回路10
の出力との差を求め、PIコントローラ9に供給する。
11は目付量,板幅,電極効率およびライン速度から総
合電流基準を計算し、これを計算回路10に供給する電
流基準回路である。
Further, 10 is a calculation circuit, which calculates the difference between the line speed of the strip 1 detected by the line speed detector 2 and the current reference and supplies it to the adder 10a. The adder 10a calculates the sum of the plating currents of the adder 8 and the calculation circuit 10
The difference between the output and the output is obtained and supplied to the PI controller 9.
Reference numeral 11 is a current reference circuit that calculates a total current reference from the basis weight, plate width, electrode efficiency and line speed, and supplies this to the calculation circuit 10.

【0005】次に動作について説明する。各メッキセル
3a〜3cに供給されるメッキ電流は、各検出器4a〜
4cにより検出され、これら各検出電流は加算器8に入
力されて加算される。こうして求められたメッキ電流の
総和は、加算器10aにおいて計算回路10の出力との
和が求められ、PIコントローラ9に供給される。
Next, the operation will be described. The plating current supplied to each of the plating cells 3a to 3c is equal to that of each of the detectors 4a to 4c.
4c, the detected currents are input to the adder 8 and added. The sum of the plating currents thus obtained is summed with the output of the calculation circuit 10 in the adder 10a and is supplied to the PI controller 9.

【0006】PIコントローラ9は加算器10aから与
えられる出力にもとづき分配された電流基準を、分配器
7a〜7cに供給する。分配器7a〜7cはメッキ電流
を各コントローラ6a〜6c,整流器5a〜5cおよび
検出器4a〜4cを介してメッキセル3a〜3cに供給
する。
The PI controller 9 supplies the current reference distributed based on the output given from the adder 10a to the distributors 7a to 7c. The distributors 7a to 7c supply the plating currents to the plating cells 3a to 3c via the controllers 6a to 6c, the rectifiers 5a to 5c and the detectors 4a to 4c.

【0007】また、上記ライン速度検出器2によって検
出されたストリップ1のライン速度は、計算回路10に
入力され、この計算回路10はこのライン速度の増減に
従い、電流基準回路11により設定された総和電流基準
を増減させる。例えば、ライン速度が増大したときは、
総合電流基準を増加させるように機能する。
The line speed of the strip 1 detected by the line speed detector 2 is input to a calculation circuit 10, which calculates the sum total set by the current reference circuit 11 according to the increase or decrease of the line speed. Increase or decrease the current reference. For example, when the line speed increases,
Functions to increase the overall current reference.

【0008】[0008]

【発明が解決しようとする課題】従来のメッキ電流制御
装置は以上のように構成されているので、電流基準回路
11から出力される目付量,板幅,電極効率およびライ
ン速度等のメッキ条件が変化した場合には、最適なメッ
キ付着量を確保しながらメッキ電流を制御するのが困難
になるなどの問題点があった。
Since the conventional plating current control device is constructed as described above, the plating conditions such as the basis weight, plate width, electrode efficiency and line speed output from the current reference circuit 11 can be adjusted. If it changes, there is a problem that it is difficult to control the plating current while ensuring the optimum amount of deposited plating.

【0009】この発明は上記のような問題点を解消する
ためになされたものであり、目付量などのメッキ条件が
変化した際にも、最適なメッキ付着量を確保するための
メッキ電流をメッキセルに出力することができるメッキ
電流制御装置を得ることを目的とする。
The present invention has been made in order to solve the above-mentioned problems, and a plating cell is provided with a plating current for ensuring an optimum plating adhesion amount even when the plating conditions such as the basis weight are changed. It is an object of the present invention to obtain a plating current control device capable of outputting to

【0010】[0010]

【課題を解決するための手段】この発明に係るメッキ電
流制御装置は、メッキセル通過後のメッキ対象における
メッキ付着量を検出するメッキ付着量検出装置を設け
て、中央演算処理装置に、該メッキ付着量検出装置で検
出したメッキ付着量および上記メッキ対象の通過速度か
ら補正に必要な総合電流値を算出させ、この補正に必要
な総合電流値により上記計算回路が出力する総合電流基
準を補正させるようにしたものである。
A plating current control device according to the present invention is provided with a plating adhesion amount detecting device for detecting a plating adhesion amount on a plating target after passing through a plating cell, and the central processing unit is provided with the plating adhesion amount. The total current value required for correction is calculated from the plating adhesion amount detected by the amount detection device and the passing speed of the plating target, and the total current reference output by the calculation circuit is corrected by the total current value required for this correction. It is the one.

【0011】[0011]

【作用】この発明における中央演算処理装置は、メッキ
対象上のメッキ付着量およびメッキ対象の通過速度から
補正電流値を演算し、この補正電流値により計算回路が
出力する総合電流基準を補正させるようにして、目付量
などのメッキ条件の変化に対応して、最適のメッキ付着
量が得られるメッキ電流を、メッキセルへ出力可能にす
る。
The central processing unit according to the present invention calculates a correction current value from the amount of plating adhered on the plating target and the passing speed of the plating target, and corrects the total current reference output by the calculation circuit based on this correction current value. Then, it is possible to output, to the plating cell, a plating current that provides the optimum amount of deposited plating in response to changes in the plating conditions such as the basis weight.

【0012】[0012]

【実施例】【Example】

実施例1.以下、この発明の一実施例を図について説明
する。図1において、1は矢印p方向に進行するメッキ
対象としてのストリップ、2はストリップ1のライン速
度を検出するライン速度検出器、3a〜3cはストリッ
プ1にメッキをするメッキセル、4a〜4cはメッキセ
ル3a〜3cに供給されるメッキ電流のメッキ電流検出
器、5a〜5cはメッキ電流を供給する整流器である。
Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a strip to be plated which travels in the direction of arrow p, 2 is a line speed detector for detecting the line speed of strip 1, 3a to 3c are plating cells for plating strip 1, and 4a to 4c are plating cells. Plating current detectors 5a to 5c for plating currents supplied to 3a to 3c are rectifiers for supplying plating currents.

【0013】また、6a〜6cは整流器5a〜5cを介
してメッキセル3a〜3cに供給する電流が所定値とな
るように制御するコントローラ、7a〜7cはメッキ電
流を分配し、コントローラ6a〜6cに供給する分配
器、8はメッキ電流検出器4a〜4cの出力によりメッ
キ電流の総和を求める加算器、9は比例・積分(以下、
PIという)コントローラであり、出力信号を分配器7
a〜7cに供給する。
Further, 6a to 6c are controllers for controlling the currents supplied to the plating cells 3a to 3c via the rectifiers 5a to 5c so as to have a predetermined value, and 7a to 7c distribute the plating currents to the controllers 6a to 6c. Distributor to be supplied, 8 is an adder for obtaining the total sum of the plating currents from the outputs of the plating current detectors 4a to 4c, and 9 is a proportional / integral (hereinafter,
PI) controller and outputs the output signal to the distributor 7
a to 7c.

【0014】さらに、10は計算回路であり、ライン速
度検出器2で検出したストリップ1のライン速度と、電
流基準との差を求めて加算器10aに供給する。加算器
10aは加算器8のメッキ電流の総和と、計算回路10
の出力との差を求め、PIコントローラ9に供給する。
11は目付量,板幅,電極効率およびライン速度から総
合電流基準を計算し、これを計算回路10に供給する電
流基準回路である。
Further, 10 is a calculation circuit, which calculates the difference between the line speed of the strip 1 detected by the line speed detector 2 and the current reference and supplies it to the adder 10a. The adder 10a calculates the sum of the plating currents of the adder 8 and the calculation circuit 10
The difference between the output and the output is obtained and supplied to the PI controller 9.
Reference numeral 11 is a current reference circuit that calculates a total current reference from the basis weight, plate width, electrode efficiency and line speed, and supplies this to the calculation circuit 10.

【0015】またさらに、12はメッキ付着量を検出す
るメッキ付着量検出装置、13はメッキ付着量検出装置
12からのフィードバック値と、ライン速度検出器2か
らの速度フィードバック値とから、補正に必要な総合電
流値である電流補正値を算出する中央演算処理装置、1
4は中央演算処理装置13と計算回路10の各出力を加
算処理する加算器である。
Furthermore, 12 is a plating adhesion amount detecting device for detecting the plating adhesion amount, and 13 is necessary for correction from the feedback value from the plating adhesion amount detecting device 12 and the speed feedback value from the line speed detector 2. Central processing unit for calculating a current correction value that is a simple total current value, 1
Reference numeral 4 denotes an adder for adding the outputs of the central processing unit 13 and the calculation circuit 10.

【0016】次に動作について説明する。電流基準回路
11はメッキ条件、すなわち目付量,板幅,電極効率,
ライン速度などにもとづいて総合電流基準を計算する。
一方目付量,板幅,電極効率およびライン速度等のメッ
キ条件の変化により、メッキ付着量が変化する。このた
め、このメッキ付着量をメッキ付着量検出装置12によ
り検出し、この検出信号をフィードバック信号として中
央演算処理装置13へ供給する。
Next, the operation will be described. The current reference circuit 11 has a plating condition, that is, a basis weight, a plate width, an electrode efficiency,
Calculate total current reference based on line speed etc.
On the other hand, the plating adhesion amount changes due to changes in the plating conditions such as the basis weight, plate width, electrode efficiency and line speed. For this reason, this plating adhesion amount is detected by the plating adhesion amount detection device 12, and this detection signal is supplied to the central processing unit 13 as a feedback signal.

【0017】このフィードバック信号を受けた中央演算
処理装置13は、メッキ付着量の変化ΔIv(vはライ
ン速度)とライン速度検出器2からの速度フィードバッ
ク値とから補正に必要な総合電流値としての補正電流値
ΔIを算出する。そして、この補正電流値ΔIは加算器
14に入力されて、計算回路10からの総合電流基準に
加算される。
Upon receipt of this feedback signal, the central processing unit 13 determines the total current value necessary for correction from the change ΔIv (v is the line speed) in the plating adhesion amount and the speed feedback value from the line speed detector 2. The correction current value ΔI is calculated. Then, the corrected current value ΔI is input to the adder 14 and added to the total current reference from the calculation circuit 10.

【0018】そして、この加算出力はさらに加算器8の
出力と加算器10aで加算された後、PIコントローラ
9に供給され、さらに、分配器7a〜7cを介して上記
メッキセル3a〜3cに入力され、メッキ付着量制御デ
ータにもとづく最適のメッキ電流を各メッキセル3a〜
3cに供給することとなる。
Then, the added output is further added to the output of the adder 8 by the adder 10a, then supplied to the PI controller 9, and further input to the plating cells 3a to 3c through the distributors 7a to 7c. , The optimum plating current based on the plating adhesion amount control data is set for each plating cell 3a ...
3c will be supplied.

【0019】[0019]

【発明の効果】以上のように、この発明によれば、メッ
キセル通過後のメッキ対象におけるメッキ付着量を検出
するメッキ付着量検出装置を設けて、中央演算処理装置
に、該メッキ付着量検出装置で検出したメッキ付着量お
よび上記メッキ対象の通過速度から補正に必要な総合電
流値を算出させ、この補正に必要な総合電流値により上
記計算回路が出力する総合電流基準を補正させるように
構成したので、目付量,板厚,電極効率およびライン速
度などのメッキ条件の変化に対応して最適なメッキ付着
量を確保できるものが得られる効果がある。
As described above, according to the present invention, the plating adhesion amount detecting device for detecting the plating adhesion amount on the plating target after passing through the plating cell is provided, and the central processing unit is provided with the plating adhesion amount detecting device. A total current value required for correction is calculated from the plating adhesion amount detected in step 1 and the passing speed of the plating target, and the total current reference output by the calculation circuit is corrected by the total current value required for this correction. Therefore, there is an effect that an optimum plating adhesion amount can be secured in accordance with changes in plating conditions such as the basis weight, plate thickness, electrode efficiency and line speed.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例によるメッキ電流制御装置
を示すブロック図である。
FIG. 1 is a block diagram showing a plating current controller according to an embodiment of the present invention.

【図2】従来のメッキ電流制御装置を示すブロック図で
ある。
FIG. 2 is a block diagram showing a conventional plating current control device.

【符号の説明】[Explanation of symbols]

1 ストリップ(メッキ対象) 3a〜3c メッキセル 7a〜7c 分配器 9 PIコントローラ(比例・積分コントローラ) 10 計算回路 11 電流基準回路 12 メッキ付着量検出装置 13 中央演算処理装置 1 strip (plating target) 3a-3c plating cell 7a-7c distributor 9 PI controller (proportional / integral controller) 10 calculation circuit 11 current reference circuit 12 plating adhesion amount detection device 13 central processing unit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 複数のメッキセルを通過することにより
メッキ処理されるメッキ対象と、該メッキ対象の通過速
度の変化に応じて電流基準回路により設定された総合電
流基準を増減させる計算回路と、上記各メッキセルに供
給されるメッキ電流の総和と上記計算回路からの総合電
流基準との加算値を分配器を通して上記各メッキセルに
分配供給する比例・積分コントローラとを備えたメッキ
電流制御装置において、メッキセル通過後のメッキ対象
におけるメッキ付着量を検出するメッキ付着量検出装置
と、該メッキ付着量検出装置で検出したメッキ付着量お
よび上記メッキ対象の通過速度から補正に必要な総合電
流値を算出して、この補正に必要な総合電流値により上
記計算回路が出力する総合電流基準を補正する中央演算
処理装置とを設けたことを特徴とするメッキ電流制御装
置。
1. A plating target to be plated by passing through a plurality of plating cells, a calculation circuit for increasing or decreasing a total current reference set by a current reference circuit according to a change in the passing speed of the plating target, In a plating current control device equipped with a proportional / integral controller, which supplies the sum of the plating currents supplied to each plating cell and the total current reference from the calculation circuit to each plating cell through a distributor, A plating adhesion amount detection device for detecting the plating adhesion amount on the subsequent plating target, and a total current value necessary for correction from the plating adhesion amount detected by the plating adhesion amount detection device and the passing speed of the plating target, A central processing unit that corrects the total current reference output by the above calculation circuit according to the total current value required for this correction is provided. A plating current control device characterized in that
JP33460391A 1991-11-25 1991-11-25 Plating current controller Pending JPH05148696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33460391A JPH05148696A (en) 1991-11-25 1991-11-25 Plating current controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33460391A JPH05148696A (en) 1991-11-25 1991-11-25 Plating current controller

Publications (1)

Publication Number Publication Date
JPH05148696A true JPH05148696A (en) 1993-06-15

Family

ID=18279240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33460391A Pending JPH05148696A (en) 1991-11-25 1991-11-25 Plating current controller

Country Status (1)

Country Link
JP (1) JPH05148696A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010202950A (en) * 2009-03-05 2010-09-16 Nippon Steel Engineering Co Ltd Method of controlling electroplating current
CN102864484A (en) * 2012-09-05 2013-01-09 无锡惠嵘环保科技有限公司 Digital automatic control device and method for electroplating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5514819A (en) * 1978-07-13 1980-02-01 Nippon Steel Corp Thickness control method of continuous electroplating
JPS6046393A (en) * 1983-08-23 1985-03-13 Nippon Steel Corp Plating current controlling method in continuous electroplating
JPS61231200A (en) * 1985-04-04 1986-10-15 Mitsubishi Electric Corp Control device for calculating plating current
JPS63247400A (en) * 1987-03-31 1988-10-14 Nisshin Steel Co Ltd Method for controlling continuous electroplating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5514819A (en) * 1978-07-13 1980-02-01 Nippon Steel Corp Thickness control method of continuous electroplating
JPS6046393A (en) * 1983-08-23 1985-03-13 Nippon Steel Corp Plating current controlling method in continuous electroplating
JPS61231200A (en) * 1985-04-04 1986-10-15 Mitsubishi Electric Corp Control device for calculating plating current
JPS63247400A (en) * 1987-03-31 1988-10-14 Nisshin Steel Co Ltd Method for controlling continuous electroplating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010202950A (en) * 2009-03-05 2010-09-16 Nippon Steel Engineering Co Ltd Method of controlling electroplating current
CN102864484A (en) * 2012-09-05 2013-01-09 无锡惠嵘环保科技有限公司 Digital automatic control device and method for electroplating

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