JPS61192655A - Draw control device for tension roller - Google Patents

Draw control device for tension roller

Info

Publication number
JPS61192655A
JPS61192655A JP60029423A JP2942385A JPS61192655A JP S61192655 A JPS61192655 A JP S61192655A JP 60029423 A JP60029423 A JP 60029423A JP 2942385 A JP2942385 A JP 2942385A JP S61192655 A JPS61192655 A JP S61192655A
Authority
JP
Japan
Prior art keywords
draw
value
speed
control
draw value
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
JP60029423A
Other languages
Japanese (ja)
Other versions
JPH0466778B2 (en
Inventor
Keiki Tsurui
鶴井 啓起
Masataka Sugiyama
正孝 杉山
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
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 Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP60029423A priority Critical patent/JPS61192655A/en
Publication of JPS61192655A publication Critical patent/JPS61192655A/en
Publication of JPH0466778B2 publication Critical patent/JPH0466778B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE:To enable the draw of a tension roller to be controlled properly and accurately by comparing the actual draw value computed by an arithmetic device with the set draw value allowing the resultant to be fed back to a PI control so as to control the responsible drive motor. CONSTITUTION:A manipulated variable due to a PI control is calculated, in order to obtain the revolving speed of a draw generating motor, a conversion is made based on the manipulated variable obtained by use of the constructive mode of a machinary system used. Namely, the draw value K is represented by a ratio of the circumferential speed between a printing cylinder 34 and a cooling cylinder 32 allowing the revolving speed of the motor 36 to be obtained. And the actual draw value K for the cooling cylinder 32 is calculated based on the output from encoders 18a and 18b where the draw value represents the actual ratio of the circumferential speed because the actual diameter of both the printing cylinder and the cooling cylinder is inputted. Thus, this configuration enables the draw for the cooling cylinder to be controlled properly and accurately where the cooling cylinder transfers a web with the stated tension force maintained through the printing cylinder in an rotary press.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 この発明は、輪転印刷機等におけるウェブ(巻取紙)を
加工する機械のテンションローラのドロー制御装置に関
する。
DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a draw control device for a tension roller of a machine that processes a web (wrapped paper) in a rotary printing press or the like.

〔従来技術とその問題点〕[Prior art and its problems]

一般に、印刷機等におけるウェブを加工する機械におい
ては、ウェブに適正なテンション(引張)分与えなけれ
ば高品質な加工は困難である。このため、テンションロ
ーラのドロー値を検出器で検出し、テンションコントロ
ーラに幼しフィードバックできる制御対象では問題ない
が、例えばオフセット輪転機の冷却部や折磯部では、開
ループでドロー制御を行いウェブに対し所定のテンショ
/を与えなければならなかった。従って、このように、
ドロー制御を開ループで行う場合には、前記冷却部や折
磯部のような制御対象に対しては、低速域から高速域ま
での正確かつ適正なドロー値すなわちテンションを与え
ることができない難点がある。
Generally, in a machine that processes a web, such as a printing press, it is difficult to process the web with high quality unless an appropriate amount of tension is applied to the web. For this reason, there is no problem in controlling objects where the draw value of the tension roller is detected by a detector and fed back to the tension controller, but for example, in the cooling section or folding section of an offset rotary press, draw control is performed in an open loop to control the web. A predetermined tension had to be applied. Therefore, like this,
When draw control is performed in an open loop, there is a drawback that it is not possible to apply an accurate and appropriate draw value, that is, tension, from a low speed range to a high speed range to the control target such as the cooling section or the folded rock section. .

〔発明の目的〕[Purpose of the invention]

本発明の目的は、テンションローラのテンションを直接
検知してフィードバック制御することが困難なテン7ヨ
ンローラのドロー制御を適正かつ高精度に達成すること
ができるテンションローラのドロー制御装置を提供する
にある。
An object of the present invention is to provide a tension roller draw control device that can appropriately and accurately achieve draw control of a tension roller, which is difficult to directly detect and feedback control the tension roller tension. .

〔発明の要点〕[Key points of the invention]

本発明に係るテンションローラのドロー制御装置は、ド
ロー値を設定するドロー値設定部と、このドロー設定値
を操作量とするPI制御部と。
A draw control device for a tension roller according to the present invention includes a draw value setting section that sets a draw value, and a PI control section that uses the draw set value as an operation amount.

前記操作tを制御対象のモータ回転数の設定値に変換す
る回転数変換部と、前記回転数設定値によジ制御対象の
駆動モータを制御するモータ制@部と、前記制御対象の
速度とそのライン速度とを検出する速度検出部と、前記
各検出部の検出1g号に基づいて実際のドロー値を演算
するドロー値演算部とからなり、この演算部で算出され
たドロー値を前記ドロー値設定部で設定されたドロー値
と比較してPI制御部にフィードバックし、前記モータ
制御部により制御対象の駆動モータを制御するよう構成
することt−%徴とする。
a rotation speed conversion section that converts the operation t into a set value of the motor rotation speed of the controlled object; a motor control @ section that controls the drive motor of the controlled object according to the rotation speed set value; and a speed of the controlled object. It consists of a speed detection section that detects the line speed, and a draw value calculation section that calculates the actual draw value based on the detection No. 1g of each of the detection sections. The draw value set by the value setting section is compared with the draw value, the result is fed back to the PI control section, and the drive motor to be controlled is controlled by the motor control section.

前記のドロー制御装置において、速度検出部は、制御対
象としてのテンションローラの周速とラインシャフトの
周速とをそれぞれ検出するエンコーダからなり、さらに
ドロー値演算部は前記各エンコーダの出力パルス信号に
よりその周速比を演算することによりトロ−値を演算す
るよう構成すれば好適である。
In the above-mentioned draw control device, the speed detection section includes an encoder that detects the circumferential speed of the tension roller and the circumferential speed of the line shaft as control objects, and the draw value calculation section is configured to detect the circumferential speed of the tension roller and the line shaft as control targets, respectively, and the draw value calculation section is configured to detect the circumferential speed of the tension roller and the line shaft as control targets, respectively. It is preferable to calculate the toro value by calculating the circumferential speed ratio.

〔発明の実施例〕[Embodiments of the invention]

次に、本発明に係るテンションローラのドロー制御装置
の実施例として、オフセット輪転機の冷却ローラすなわ
ち冷却膜を制御対象とするドロー制御装置につき、以下
添付図面を参照しながら詳細に説明する。
Next, as an embodiment of a tension roller draw control device according to the present invention, a draw control device that controls a cooling roller, that is, a cooling film, of a rotary offset press will be described in detail with reference to the accompanying drawings.

第1図は本発明ドロー制御装置の制御系のブロック系統
図を示し、また第一図は本発明ドロー制御装置の機械系
の機構図を示す。第1図において、本実施例におけるド
ロー制御装置の制御系は、制御対象のドロー値を設定す
るドロー値設定部10と、この設定ドロー値を制御対象
の操作量とするPI制御部/−と、得られた操作量を制
御対象を駆動するモータの回転数の設定値に変換する回
転数変換部/41と、前記回転数変換部/グで得られた
回転数設定値により前記モータを制御するモータ制御部
/6、と、制御対象が接続される主ラインの速度および
前記モータの速度を検出するエンコーダ等からなる速度
検出部/lと、この速度検出部/にで検出された速度に
基づいて実際の制御対象のドロー値を演算により算出す
るドロー値演算部コθと、そしてこのドロー値演算部−
〇で算出されたドロー値を前記ドロー値設定部/θで設
定されたドロー値とを比較して制御対象に対する適正な
操作IIkを得るための比[器、22とから構成される
FIG. 1 shows a block system diagram of the control system of the draw control device of the present invention, and FIG. 1 shows a mechanical diagram of the mechanical system of the draw control device of the present invention. In FIG. 1, the control system of the draw control device in this embodiment includes a draw value setting section 10 that sets the draw value of the controlled object, and a PI control section /- that uses this set draw value as the manipulated variable of the controlled object. , a rotation speed converter/41 that converts the obtained operation amount into a rotation speed setting value of a motor that drives the controlled object; and controlling the motor using the rotation speed setting value obtained by the rotation speed conversion section/g. a motor control unit /6 that detects the speed of the main line to which the controlled object is connected and a speed detection unit /l that includes an encoder etc. that detects the speed of the motor; a draw value calculation section θ which calculates the actual draw value of the controlled object based on the calculation result;
The draw value calculated in 〇 is compared with the draw value set in the draw value setting unit/θ to obtain an appropriate operation IIk for the controlled object.

一方、前記制御対象が設けられる機械系は、第一図に示
すように構成される。第一図において、参照符号3θは
、本実施例における制御対象の冷却膜32が結合される
オフセット輪転機のラインシャフトを示す。このライン
シャフト3θには、所定のギヤ比を以って版胴3グがギ
ヤ結合されると共にこの版胴3グの回転速度を検出する
ためのエンコーダ/にaがギヤ結合される。しかるに、
冷却膜3.2は、前記ラインシャフト3θに対し、所要
のドロー発生用モータ36、減速機3gおよび回転速度
を検出するためのエンコーダ/にbを介してそれぞれ所
定のギヤ比を以ってギヤ結合される。
On the other hand, the mechanical system in which the control object is provided is configured as shown in FIG. In FIG. 1, reference numeral 3θ indicates a line shaft of an offset rotary press to which the cooling film 32 to be controlled in this embodiment is coupled. A plate cylinder 3g is connected with a gear to the line shaft 3θ at a predetermined gear ratio, and an encoder/a for detecting the rotational speed of the plate cylinder 3g is connected with a gear. However,
The cooling film 3.2 is connected to the line shaft 3θ through a required draw generation motor 36, a reduction gear 3g, and an encoder/b for detecting the rotational speed, respectively, at a predetermined gear ratio. be combined.

そこで、前記第2図に示す機械系における各構成部材と
ラインシャフト3θとのギヤ結合におけるギヤ比と回転
数および冷却膜3.2と版胴3グの直径につき定義すれ
ば次の通りである。
Therefore, the gear ratio, rotation speed, and diameter of the cooling film 3.2 and plate cylinder 3g in the gear connection between each component and the line shaft 3θ in the mechanical system shown in FIG. 2 are defined as follows. .

NQ:  ラインシャフト(3θ)の回転数NW: モ
ータ(36)の回転数 以上の関係に基づいて、第1図に示す制御系の各部の動
作につき説明する。
NQ: Number of revolutions of the line shaft (3θ) NW: Number of revolutions of the motor (36) Based on the relationship above, the operation of each part of the control system shown in FIG. 1 will be explained.

(1)PI制御部 PI制御による操作tは次式により演算する。(1) PI control section The operation t under PI control is calculated by the following equation.

但し、’Yi:操作童出力 Xi:人 力 P :比例ゲイン T ;積分時間 なお、比例ゲインPと積分時間Tは、システムパラメー
タとしてf史可能である。
However, 'Yi: Operator output Xi: Human power P: Proportional gain T; Integral time Note that the proportional gain P and the integral time T can be expressed as system parameters.

(2)  回転数変換部 PI制御部で得られた操作量に基づいてドロー発生用モ
ータの回転数を得るため、第一図に示す機械系の構成か
ら次式により変換を行う。
(2) Rotation speed conversion section In order to obtain the rotation speed of the draw generation motor based on the operation amount obtained by the PI control section, conversion is performed using the following equation from the mechanical system configuration shown in FIG.

まず、ドロー値には5版胴3ダの周速と冷却座3.2の
周速の比で衆わされる。
First, the draw value is determined by the ratio of the circumferential speed of the fifth plate cylinder 3.2 and the circumferential speed of the cooling seat 3.2.

また、機械系の関係は次式の通りである。Moreover, the relationship of the mechanical system is as shown in the following equation.

以上の関係式より、前記モータ36の回転数を求めれば
、次式の通りである。
The number of rotations of the motor 36 can be calculated from the above relational expression as follows.

J2:GU・GS・G。J2: GU・GS・G.

または、次式で求めることもできる。Alternatively, it can also be calculated using the following formula.

尚、J1〜J4はシステムパラメータで設定する。Note that J1 to J4 are set by system parameters.

(3)  ドロー値演算部 冷却座32に2ける実際値のドローllKは、次式によ
ジエンコーダ/にa、/ざbの出力によって演算する。
(3) Draw value calculation section The actual value of the draw llK at the cooling seat 32 is calculated by the outputs of the encoders /a and /zab according to the following equation.

この場合、JsUシステムパラメータで設定する。また
、版胴径DP、冷却胴径Leaは実測値を人力するため
、ドロー値には実際の周速比となる。
In this case, set using the JsU system parameters. Further, since the plate cylinder diameter DP and the cooling cylinder diameter Lea are manually measured values, the draw value becomes the actual circumferential speed ratio.

また、ドロー値には、次式によっても算出することがで
きる。
Further, the draw value can also be calculated using the following formula.

このようにして、本発明によれば、オフセット輪転機に
おいて、版胴を介して袷送されるウェブを所定のテンシ
ョンを保持しながら移送する冷却膜において、この冷却
水のドロー制御を適正かつ高精度に実現することができ
る。
In this way, according to the present invention, in the cooling film that transfers the web being fed through the plate cylinder while maintaining a predetermined tension in the offset rotary press, the draw control of the cooling water can be properly and highly controlled. It can be realized with precision.

〔発明の効果〕〔Effect of the invention〕

紡述した実施例から明らかなように、本発明によれば、
オフセット輪転機のウェブを冷却する冷却膜や折機を構
成する各テンションローラを始めとして、その他各種の
連続する物品に所定のテンションを与えて移送するテン
ションローラのドロー制御を演算制御により円滑かつ局
精変に実現できる。すなわち、従来においては一定速度
の物品移送に対しテ/ショ/の変0を常に適正に保持す
るのに対し、本発明によれば。
As is clear from the detailed examples, according to the present invention,
The cooling film that cools the web of an offset rotary press, the tension rollers that make up the folding machine, and the draw control of the tension rollers that apply predetermined tension to and transport various other continuous articles are smoothly and precisely controlled by calculation control. It can be achieved with great precision. That is, in contrast to the conventional method, in which the tension/shock/change of 0 is always properly maintained when the article is transported at a constant speed, according to the present invention.

物品移送を低速から高速まで自由に変化させることがで
きると共に各速度に対してのテンション保持を正確に行
うことができるドロー制御を簡便に達成することができ
る。
It is possible to easily achieve draw control in which the article transport can be freely changed from low speed to high speed, and the tension can be accurately maintained at each speed.

さらに、本発明によれば、その制御に際し、■制御対象
のローラ径の加工誤差を修正し、■速度−ドロー値の関
数を任意に設定可能であり。
Further, according to the present invention, during the control, it is possible to (1) correct machining errors in the diameter of the roller to be controlled, and (2) arbitrarily set the speed-draw value function.

■フィードバック補正量−ドロー値偏差の関数も任意に
設定可能でらυ、■ドロー値をリモートプリセット可能
でおり、■移送物品がマルチウェブの場合ウェブ間のド
ロー値は一般に異なるがウェブ関のドロー値の差を修正
できる等椎々の機能を発揮させることができる。
■The function of feedback correction amount - draw value deviation can be set arbitrarily υ, ■The draw value can be preset remotely, ■If the transported article is a multi-web, the draw value between webs generally differs, but the draw value related to the web It is possible to make use of various functions such as being able to correct differences in values.

以上、本発明の好適な実施例について説明したが、本発
明の精神を逸脱しない範囲内において、種々の設計変更
をなし得ることは勿論である。
Although the preferred embodiments of the present invention have been described above, it goes without saying that various design changes can be made without departing from the spirit of the present invention.

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

第1図は本発明に係るテン7ヨンローラのドロー制御装
置の一実施例を示す制御系のブロック系統図、第一図は
第1図に示す制御系に対する機械系の機構説明図である
FIG. 1 is a block system diagram of a control system showing an embodiment of a draw control device for a tensile roller according to the present invention, and FIG. 1 is an explanatory diagram of a mechanical system for the control system shown in FIG. 1.

Claims (2)

【特許請求の範囲】[Claims] (1)ドロー値を設定するドロー値設定部と、このドロ
ー設定値を操作量とするPI制御部と、前記操作量を制
御対象のモータ回転数の設定値に変換する回転数変換部
と、前記回転数設定値により制御対象の駆動モータを制
御するモータ制御部と、前記制御対象の速度とそのライ
ン速度とを検出する速度検出部と、前記各検出部の検出
信号に基づいて実際のドロー値を演算するドロー値演算
部とからなり、この演算部で算出されたドロー値を前記
ドロー値設定部で設定されたドロー値と比較して PI制御部にフィードバックし、前記モータ制御部によ
り制御対象の駆動モータを制御するよう構成することを
特徴とするテンションローラのドロー制御装置。
(1) a draw value setting section that sets a draw value; a PI control section that uses this draw setting value as an operation amount; and a rotation speed conversion section that converts the operation amount into a setting value of a motor rotation speed to be controlled; a motor control section that controls the drive motor of the controlled object based on the rotation speed setting value; a speed detection section that detects the speed of the controlled object and its line speed; and a motor control section that detects the speed of the controlled object and its line speed; and a draw value calculation unit that calculates a value, and compares the draw value calculated by this calculation unit with the draw value set by the draw value setting unit and feeds it back to the PI control unit, and is controlled by the motor control unit. A tension roller draw control device, characterized in that it is configured to control a target drive motor.
(2)特許請求の範囲第1項記載のドロー制御装置にお
いて、速度検出部は、制御対象としてのテンションロー
ラの周速とラインシャフトの周速とをそれぞれ検出する
エンコーダからなり、さらにドロー値演算部は前記各エ
ンコーダの出力パルス信号によりその周速比を演算する
ことによりドロー値を演算するよう構成してなるテンシ
ョンローラのドロー制御装置。
(2) In the draw control device according to claim 1, the speed detection section includes an encoder that respectively detects the peripheral speed of the tension roller and the peripheral speed of the line shaft as control targets, and further performs a draw value calculation. The tension roller draw control device is configured to calculate a draw value by calculating a circumferential speed ratio based on the output pulse signal of each of the encoders.
JP60029423A 1985-02-19 1985-02-19 Draw control device for tension roller Granted JPS61192655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60029423A JPS61192655A (en) 1985-02-19 1985-02-19 Draw control device for tension roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60029423A JPS61192655A (en) 1985-02-19 1985-02-19 Draw control device for tension roller

Publications (2)

Publication Number Publication Date
JPS61192655A true JPS61192655A (en) 1986-08-27
JPH0466778B2 JPH0466778B2 (en) 1992-10-26

Family

ID=12275718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60029423A Granted JPS61192655A (en) 1985-02-19 1985-02-19 Draw control device for tension roller

Country Status (1)

Country Link
JP (1) JPS61192655A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724733A (en) * 1972-02-03 1973-04-03 Harris Intertype Corp Web infeed mechanism
US3806012A (en) * 1971-10-08 1974-04-23 Bobst Fils Sa J Method and apparatus for maintaining registration in a multistation printing press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806012A (en) * 1971-10-08 1974-04-23 Bobst Fils Sa J Method and apparatus for maintaining registration in a multistation printing press
US3724733A (en) * 1972-02-03 1973-04-03 Harris Intertype Corp Web infeed mechanism

Also Published As

Publication number Publication date
JPH0466778B2 (en) 1992-10-26

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