JPH05111288A - Drive controller for paper making machine - Google Patents

Drive controller for paper making machine

Info

Publication number
JPH05111288A
JPH05111288A JP3265667A JP26566791A JPH05111288A JP H05111288 A JPH05111288 A JP H05111288A JP 3265667 A JP3265667 A JP 3265667A JP 26566791 A JP26566791 A JP 26566791A JP H05111288 A JPH05111288 A JP H05111288A
Authority
JP
Japan
Prior art keywords
speed
coating
value
tension
load current
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
Application number
JP3265667A
Other languages
Japanese (ja)
Other versions
JP3053271B2 (en
Inventor
Shigeru Sekine
茂 関根
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP3265667A priority Critical patent/JP3053271B2/en
Publication of JPH05111288A publication Critical patent/JPH05111288A/en
Application granted granted Critical
Publication of JP3053271B2 publication Critical patent/JP3053271B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To control a driver for post stage roll such that the paper slack between a coating section and post stage section is eliminated appropriately when coating operation is started by comparing an allowable load current value fed from a tension current memory circuit with an actual load current value and adding a set superposing speed to a set speed value to produce a speed reference s signal. CONSTITUTION:A drive motor 3 for a post stage coating roll 2 is driven by a driver 5 through a current controller 8 and a phase controller 7 with the speed of the drive motor 3 being controlled through a speed controller 9 based on a speed feedback signal fed from a rotational speed detector 4 and according to the reference of a speed setter 10. A coating start signal 20 is fed to an AND unit 14 in order to actuate a comparator 13 which then compares an output current IO from a tension current memory circuit, corresponding to the brand, paper width, mechanical loss and acceleration rate with a value ID detected through a current detector 6 for the driver 5. If IO>ID, a value set in a superposing speed setter 11 is added to a reference signal and the addition is interrupted when IO= ID.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、塗工部をもつ抄紙機の
駆動制御装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive controller for a paper machine having a coating section.

【0002】[0002]

【従来の技術】塗工部をもつ抄紙機においては、塗工開
始時に、塗工剤が紙に含まれることにより紙伸びが発生
する。この場合、後段セクションは、塗工後の運転速度
に速く移動する様に速度設定がされている。しかしなが
ら、塗工の動作の瞬間には、塗工部と後段セクション間
に紙伸びによる紙弛みが過渡的に発生する。この弛みを
取るために従来技術においては、銘柄によってある一定
時間速度を上乗せし運動していたが、この上乗せ速度を
時間で設定していたために、時間が短い場合には、十分
紙の弛みを取ることが出来ず、また時間が長い場合に
は、紙が張りすぎたり断紙したりする不具合があった。
2. Description of the Related Art In a paper machine having a coating section, when the coating is started, the paper is stretched due to the coating agent being contained in the paper. In this case, the speed of the latter section is set so as to move faster to the operating speed after coating. However, at the moment of the coating operation, paper slack due to paper stretching transiently occurs between the coating section and the subsequent section. In the prior art, in order to remove this slack, exercise was performed by adding speed for a certain period of time depending on the brand, but since this additional speed was set in time, if the time is short, slack in the paper should be sufficient. If the paper could not be taken and the time was long, there was a problem that the paper was too tight or the paper was cut.

【0003】[0003]

【発明が解決しようとする課題】上記の様に、従来技術
においては、塗工部と後段セクション間において、紙の
弛み、紙の張りすぎ及び断紙したりす問課題があった。
As described above, in the prior art, there are problems such as slack of paper, excessive tension of paper and paper break between the coating section and the latter section.

【0004】本発明の目的は、上記、従来技術の問題点
を解決するため、塗工開始時に発生する塗工部と後段セ
クション間の紙弛みを適正に取る抄紙機の駆動制御装置
を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a drive control device for a paper machine, in order to solve the above-mentioned problems of the prior art, in order to properly eliminate the slack between the coating section and the subsequent section that occurs at the start of coating. Especially.

【0005】[0005]

【課題を解決するための手段】本発明は、塗工部をもつ
抄紙機の塗工部後段セクションを駆動する駆動電動機
と、この駆動電動機の回転速度を検出する回転速度検出
器と、駆動電動機を速度制御する駆動装置に流れる実負
荷電流値を検出する電流検出器と、塗工開始信号により
速度設定値を与える速度設定器と、塗工開始直後におけ
る塗工部と塗工部後段との間に発生する弛みを取るため
に設定値を上乗せする上乗せ速度設定器と、予め設定し
た銘柄、紙巾、メカニカルロス及び許容張力値から許容
負荷電流値に変換する張力電流メモリ回路と、この張力
電流メモリ回路からの許容負荷電流値と実負荷電流値と
を比較し塗工開始信号が入力されていて、かつ出力が論
理不成立とならない場合に論理成立信号を出力する比較
器と、塗工開始信号と比較器の出力が共に成立している
とき上乗せ速度設定器の設定値を速度設定値に加算して
速度基準信号とする論理積器と、速度基準信号に回転速
度及び実負荷電流値による制限を加えて駆動装置のサイ
リスタ位相を制御する位相制御器とを具備してなる抄紙
機の駆動制御装置である。
SUMMARY OF THE INVENTION The present invention is directed to a drive motor for driving a post-coating section section of a paper machine having a coating section, a rotation speed detector for detecting the rotation speed of the drive motor, and a drive motor. The current detector that detects the actual load current value flowing in the drive device that controls the speed, the speed setter that gives the speed set value by the coating start signal, and the coating section immediately after the start of coating and the latter stage of the coating section. An additional speed setting device that adds a set value to remove the slack that occurs between them, a tension current memory circuit that converts a preset brand, paper width, mechanical loss, and allowable tension value into an allowable load current value, and this tension current Comparing the allowable load current value from the memory circuit with the actual load current value, a comparator that outputs a logic establishment signal when the coating start signal is input and the output does not become the logic establishment, and the coating start signal When both the outputs of the comparator are established, the logical product unit that adds the set value of the additional speed setter to the speed set value as the speed reference signal, and the speed reference signal is limited by the rotation speed and the actual load current value. In addition, it is a drive control device for a paper machine including a phase controller that controls the thyristor phase of the drive device.

【0006】[0006]

【作用】本発明による抄紙機の駆動制御装置において
は、塗工部をもつ抄紙機の塗工部後段セクションを駆動
する駆動電動機の回転速度を検出し、駆動電動機を速度
制御する駆動装置に流れる実負荷電流値を検出し、塗工
開始信号により速度設定値を与え、塗工開始直後におけ
る塗工部と塗工部後段との間に発生する弛みを取るため
に設定値を上乗せし、予め設定した銘柄、紙巾、メカニ
カルロス及び許容張力値から許容負荷電流値に変換する
張力電流メモリ回路からの許容負荷電流値と実負荷電流
値とを比較し、塗工開始信号が入力されていて、かつ出
力が論理不成立とならない場合に論理成立信号を出力
し、塗工開始信号と比較器の出力が共に成立していると
き上乗せ速度の設定器の設定値を速度設定値に加算して
速度基準信号とし、速度基準信号に回転速度及び実負荷
電流値による制限を加えて駆動装置のサイリスタ位相を
制御する。
In the drive control device for the paper machine according to the present invention, the rotational speed of the drive motor for driving the latter section of the coating section of the paper machine having the coating section is detected and the speed is controlled by the drive motor. The actual load current value is detected, the speed setting value is given by the coating start signal, and the setting value is added in advance in order to remove the slack that occurs between the coating section and the subsequent stage of the coating section immediately after the coating is started. Compare the allowable load current value from the tension current memory circuit that converts the set brand, paper width, mechanical loss and allowable tension value to the allowable load current value and the actual load current value, and the coating start signal is input. And when the output does not become logic non-establishment, the logic establishment signal is output, and when the coating start signal and the output of the comparator are both established, the set value of the add-on speed setter is added to the speed set value to set the speed reference. Signal and fast Controlling the thyristor phase of the drive unit to the reference signal speed and places restrictions by actual load current value.

【0007】[0007]

【実施例】次に本発明の一実施例を説明する。図1は、
塗工部をもつ抄紙機の塗工部後段セクションを駆動する
駆動電動機3と、駆動電動機3の回転速度を検出する回
転速度検出器4と、駆動電動機3を速度制御する駆動装
置5に流れる実負荷電流値を検出する電流検出器6と、
塗工開始信号20により速度設定値を与える速度設定器
10と、塗工開始直後における塗工部と塗工部後段との
間に発生する弛みを取るために設定値を上乗せする。上
乗せ速度設定器11と、予め設定した銘柄、紙巾、メカ
ニカルロス及び許容張力値から許容負荷電流値に変換す
る張力電流メモリ回路12と、張力電流メモリ回路12
から許容負荷電流値と実負荷電流値とを比較し塗工開始
信号20が入力されていて、かつ出力が論理不成立とな
らない場合に論理成立信号を出力する比較器13と、塗
工開始信号20と比較器13の出力が共に成立している
とき上乗せ速度設定器11の設定値を速度設定値に加算
して速度基準信号とする論理積器14と、速度基準信号
に回転速度及び実負荷電流値による制限を加えて駆動装
置5のサイリスタ位相を制御する位相制御器7とを具備
してなる抄紙機の駆動制御装置を示している。
EXAMPLE An example of the present invention will be described below. Figure 1
A drive motor 3 that drives the latter section of the coating section of a paper machine having a coating section, a rotation speed detector 4 that detects the rotation speed of the drive motor 3, and a drive device 5 that controls the speed of the drive motor 3. A current detector 6 for detecting a load current value,
The set value is added in order to remove the slack generated between the speed setting device 10 which gives a speed setting value by the coating start signal 20 and the coating part immediately after the start of coating and the latter part of the coating part. An additional speed setting device 11, a tension current memory circuit 12 that converts a preset brand, paper width, mechanical loss, and allowable tension value into an allowable load current value, and a tension current memory circuit 12
The comparator 13 that outputs the logic establishment signal when the coating start signal 20 is input by comparing the allowable load current value with the actual load current value and the output does not become the logic establishment state, and the coating start signal 20. And the output of the comparator 13 are both satisfied, the ANDer 14 that adds the set value of the additional speed setter 11 to the speed set value as the speed reference signal, and the rotation speed and the actual load current as the speed reference signal. 1 shows a drive control device for a paper machine, which comprises a phase controller 7 for controlling the thyristor phase of the drive device 5 by limiting the value.

【0008】即ち、塗工部をもつ抄紙機の塗工部後段セ
レクションの抄紙機の駆動装置において、塗工部後段セ
クションを駆動する駆動電動機3と、駆動電動機3の速
度を検出する回転速度検出器4と、駆動電動機3を、電
源を変換して、速度基準に従い回転速度検出器4の速度
検出信号を帰還し、速度制御駆動する駆動装置5と、駆
動装置5の実電流を検出する電流検出器6と、塗工開始
信号20により適正な速度設定を駆動装置に与える速度
設定器10と、塗工開始直後に塗工部と塗工部後段との
間に発生する弛みを取るために上乗せ速度を設定する上
乗せ速度設定器11と、銘柄、紙巾、メカニカルロス、
加速率を設定し、予め与えられた許容張力値とから、許
容電流に変換する張力電流メモリ回路12と、実電流検
出回路の実電流と張力電流メモリ回路12の出力を比較
し、塗工開始信号20が入力されていてかつ、自分の出
力が、論理不成立とならない場合に、論理成立信号を出
力する比較器13と、塗工開始信号20と比較器13の
出力が共に成立しているとき上乗せ速度設定器11の設
定値を速度基準信号値に加算させる論理積器14とから
なる抄紙機の駆動制御装置である。
That is, in a drive for a paper machine having a coating section rear stage selection of a paper machine having a coating section, a drive motor 3 for driving the coating section rear stage section, and a rotational speed detection for detecting the speed of the drive motor 3 The power source of the drive unit 4 and the drive motor 3 is converted, the speed detection signal of the rotation speed detector 4 is fed back in accordance with the speed reference, and the drive device 5 that drives the speed control and the current that detects the actual current of the drive device 5 are fed. The detector 6, the speed setting device 10 that gives an appropriate speed setting to the drive device by the coating start signal 20, and to remove the slack generated between the coating part and the subsequent stage of the coating part immediately after the start of coating. The additional speed setting device 11 for setting the additional speed, the brand, the paper width, the mechanical loss,
Set the acceleration rate and compare the output of the tension current memory circuit 12 that converts the allowable tension value given in advance to the allowable current with the actual current of the actual current detection circuit and the output of the tension current memory circuit 12 to start coating. When the signal 20 is input and the output of the comparator 13 that outputs the logic establishment signal and the outputs of the coating start signal 20 and the comparator 13 are both established when the output of itself does not become the logic not established A drive control device for a paper machine, which comprises a logical product unit 14 for adding the set value of the additional speed setting unit 11 to the speed reference signal value.

【0009】そして、塗工開始信号20により、後段セ
クションの速度設定値は、銘柄ごとに自動的に速度上昇
されるが、この加速は、瞬時には行なえないため紙伸び
により塗工部と後段セクション間にタルミが発生する。
後段セクションの駆動電動機の電流Iは、 I=IL+IACC+IT …(1) ここで、ILはメカニカルロス駆動に必要な電流値、I
ACCは加速に必要な電流値、ITは張力分電流値で表わさ
れるが、弛みが発生した場合には、張力分電流値IT
0となる。電流値IL及び電流値IACCは、負荷及び負荷
のGD2より一義的に求められる。また、張力分電流値
Tは、張力値に比例する。いま、ある銘柄の適正張力
値をT0とすると、その張力分に相当する電流値IT0は IT=A・T0・W …(2) そしてAは比例定数、Wは紙巾で表わされ、銘柄ごとに
決定される。従ってI0=IL+IACC+IT0が銘柄ごと
に決定される。
The speed setting value of the subsequent section is automatically increased for each brand by the coating start signal 20, but this acceleration cannot be performed instantaneously, so the paper is stretched due to the paper elongation and the subsequent section. Talumi occurs between sections.
The current I of the drive motor of the latter section is I = I L + I ACC + I T (1) where I L is the current value required for mechanical loss drive, I
ACC is a current value required for acceleration, and I T is a tension component current value. When slackness occurs, a tension component current value I T =
It becomes 0. The current value I L and the current value I ACC are uniquely obtained from the load and GD 2 of the load. Further, the tension component current value I T is proportional to the tension value. Now, assuming that an appropriate tension value of a certain brand is T 0 , the current value I T0 corresponding to the tension is I T = A · T 0 · W (2) And A is a proportional constant and W is a paper width. It is decided for each issue. Therefore, I 0 = I L + I ACC + I T0 is determined for each brand.

【0010】駆動装置の電流IDを検出して、この電流
0と比較し、 ID=I0 …(3) となった場合には、セクション間の張りが適正になった
ことになるので、弛みが取れたことになる。そこで、弛
みを取るために上乗せされた上乗せ速度を切り、設定速
度にて運転される様になる。
The current I D of the driving device is detected and compared with this current I 0. When I D = I 0 (3), the tension between the sections is proper. So the slack has been removed. Therefore, in order to remove the slack, the added speed is cut off and the vehicle is operated at the set speed.

【0011】そして、上記手段の項にて説明した様に、
電流ID電流I0を比較し、塗工開始信号が入力された後
の弛み取りのための上乗せ速度の上乗せを中止すること
により、必要張力以上で紙を引張ること無く、適正にタ
ルミを取る様作用する。
Then, as described in the above section,
The current I D and the current I 0 are compared, and the addition of the addition speed for removing the slack after the coating start signal is input is stopped, so that the paper is properly pulled without pulling the paper with a tension higher than the required tension. Acts like.

【0012】即ち、塗工ロール1を通過した紙は、後段
セクションロール2を通過し、後段セクションのロール
2は、回転検出器4を伴えた駆動電動機3により、駆動
され、駆動電動機3は速度設定器10の基準に従い、回
転検出器4の速度帰還信号により速度制御器9で速度制
御され、駆動装置5により駆動される。塗工開始信号2
0は速度設定器10を増加させると共に比較器13の動
作を開始させ、銘柄、紙巾、メカニカルロス、加速率を
入力し、各銘柄に応じた電流値を出力する張力電流メモ
リー回路12の出力電流I0は、駆動装置5の電流を検
出する電流検出器6の検出値IDと比較器13で比較さ
れ、 I0>ID …(4) の場合に論理を速度基準信号を成立させ、塗工開始信号
が成立している場合には、上乗せ速度設定器11の基準
信号に加算し、 I0=ID …(3) となった場合に加算を中止する論理積器14によって構
成される。
That is, the paper that has passed through the coating roll 1 passes through the rear section roll 2, and the rear section roll 2 is driven by the drive motor 3 with the rotation detector 4, and the drive motor 3 moves at a speed. According to the reference of the setting device 10, the speed is controlled by the speed controller 9 by the speed feedback signal of the rotation detector 4 and driven by the driving device 5. Coating start signal 2
0 is the output current of the tension current memory circuit 12 that increases the speed setting device 10 and starts the operation of the comparator 13, inputs the brand, paper width, mechanical loss, and acceleration rate, and outputs the current value according to each brand. I 0 is compared with the detection value I D of the current detector 6 that detects the current of the driving device 5 by the comparator 13, and if I 0 > ID (4), the logic establishes the speed reference signal, When the coating start signal is established, it is added to the reference signal of the additional speed setting device 11 and is constituted by the logical product device 14 which stops the addition when I 0 = ID (3) It

【0013】そして、比較器13の出力により、上乗せ
速度を与える期間を判断することにより、図2に示す様
に、塗工開始後紙伸び及び加速遅れにより発生した紙の
弛み分(Aの面積に相当)が、上乗せ速度分による増速
により取られる(Bの面積に相当)ので、弛みを解消
し、かつ、張力を張りすぎることなく制御作用する。
尚、21は上乗せ速度、22は塗工開始、23は張力I
0=ID,24は塗工速度、25は後段セクション速度で
ある。
Then, the output of the comparator 13 is used to judge the period during which the additional speed is applied, and as shown in FIG. (Corresponding to the area of B) is taken by the acceleration due to the additional speed (corresponding to the area of B), so that the slack is eliminated and the control action is performed without excessive tension.
In addition, 21 is addition speed, 22 is coating start, 23 is tension I
0 = ID , 24 is the coating speed, and 25 is the latter stage section speed.

【0014】[0014]

【発明の効果】本発明により、弛みが発生したときに、
紙の許容張力以上の張力を張らないで、断紙せずに、た
るみを取ることができ、塗工剤による紙の伸び率が変化
しても、自動的にたるみを取ることができ、断紙するこ
とがないという効果がある。
According to the present invention, when looseness occurs,
The slack can be removed without breaking the paper without applying a tension higher than the allowable tension of the paper, and even if the elongation of the paper changes due to the coating agent, the slack can be automatically removed. The effect is that there is no paper.

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

【図1】本発明の一実施例を示す駆動制御装置の構成図
である。
FIG. 1 is a configuration diagram of a drive control device showing an embodiment of the present invention.

【図2】塗工時の弛みの解消を示す速度チャート説明図
である。
FIG. 2 is a speed chart explanatory diagram showing elimination of slack during coating.

【符号の説明】[Explanation of symbols]

3…駆動電動機 4…回転速度検出器 6…電流検出器 7…位相制御器 10…速度設定器 11…上乗せ速度設定器 12…張力電流メモリ回路 13…比較器 14…論理積器 3 ... Driving motor 4 ... Rotational speed detector 6 ... Current detector 7 ... Phase controller 10 ... Speed setting device 11 ... Addition speed setting device 12 ... Tension current memory circuit 13 ... Comparator 14 ... Logical product device

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 塗工部をもつ抄紙機の塗工部後段セクシ
ョンを駆動する駆動電動機と、この駆動電動機の回転速
度を検出する回転速度検出器と、前記駆動電動機を速度
制御する駆動装置に流れる実負荷電流値を検出する電流
検出器と、塗工開始信号により速度設定値を与える速度
設定器と、塗工開始直後における前記塗工部と塗工部後
段との間に発生する弛みを取るために設定値を上乗せす
る上乗せ速度設定器と、予め設定した銘柄、紙巾、メカ
ニカルロス及び許容張力値から許容負荷電流値に変換す
る張力電流メモリ回路と、この張力電流メモリ回路から
の前記許容負荷電流値と前記実負荷電流値とを比較し、
前記塗工開始信号が入力されていて、かつ出力が論理不
成立とならない場合に論理成立信号を出力する比較器
と、前記塗工開始信号と前記比較器の出力が共に成立し
ているとき前記上乗せ速度設定器の設定値を前記速度設
定値に加算して速度基準信号とする論理積器と、前記速
度基準信号に前記回転速度及び前記実負荷電流値による
制限を加えて前記駆動装置のサイリスタ位相を制御する
位相制御器とを具備してなる抄紙機の駆動制御装置。
1. A drive motor for driving a rear section of a coating section of a paper machine having a coating section, a rotation speed detector for detecting a rotation speed of the drive motor, and a drive device for controlling the speed of the drive motor. A current detector that detects the actual load current value that flows, a speed setter that gives a speed set value by a coating start signal, and a slack that occurs between the coating unit and the subsequent stage of the coating unit immediately after the start of coating. An additional speed setting device that adds a set value to take, a tension current memory circuit that converts a preset brand, paper width, mechanical loss and allowable tension value into an allowable load current value, and the allowable current from this tension current memory circuit. Comparing the load current value and the actual load current value,
When the coating start signal is input and the output does not become a logic non-establishment, a comparator that outputs a logic establishment signal, and the addition when the coating start signal and the output of the comparator are both established A logical product unit that adds a set value of the speed setter to the speed set value as a speed reference signal, and a thyristor phase of the drive unit by adding a limit to the speed reference signal by the rotation speed and the actual load current value. A drive control device for a paper machine, which comprises a phase controller for controlling.
JP3265667A 1991-10-15 1991-10-15 Drive control device for paper machine Expired - Lifetime JP3053271B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3265667A JP3053271B2 (en) 1991-10-15 1991-10-15 Drive control device for paper machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3265667A JP3053271B2 (en) 1991-10-15 1991-10-15 Drive control device for paper machine

Publications (2)

Publication Number Publication Date
JPH05111288A true JPH05111288A (en) 1993-04-30
JP3053271B2 JP3053271B2 (en) 2000-06-19

Family

ID=17420317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3265667A Expired - Lifetime JP3053271B2 (en) 1991-10-15 1991-10-15 Drive control device for paper machine

Country Status (1)

Country Link
JP (1) JP3053271B2 (en)

Also Published As

Publication number Publication date
JP3053271B2 (en) 2000-06-19

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