JP2683892B2 - Eccentric roll roll constant speed unwinding drive control method - Google Patents

Eccentric roll roll constant speed unwinding drive control method

Info

Publication number
JP2683892B2
JP2683892B2 JP7322145A JP32214595A JP2683892B2 JP 2683892 B2 JP2683892 B2 JP 2683892B2 JP 7322145 A JP7322145 A JP 7322145A JP 32214595 A JP32214595 A JP 32214595A JP 2683892 B2 JP2683892 B2 JP 2683892B2
Authority
JP
Japan
Prior art keywords
roll
eccentric
speed
original roll
rotation
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
Application number
JP7322145A
Other languages
Japanese (ja)
Other versions
JPH09142707A (en
Inventor
幸道 松本
Original Assignee
株式会社不二鉄工所
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 株式会社不二鉄工所 filed Critical 株式会社不二鉄工所
Priority to JP7322145A priority Critical patent/JP2683892B2/en
Publication of JPH09142707A publication Critical patent/JPH09142707A/en
Application granted granted Critical
Publication of JP2683892B2 publication Critical patent/JP2683892B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は原反ロールのボビン
に電動機を適宜伝動装置を介して連結し、原反ロールに
巻かれたフイルムを積極的に巻出す中心巻出し装置の原
反ロール巻出し駆動制御方法に関し、特にボビン軸心に
対し偏心している原反ロールより等速で積極的に巻出す
ための上記駆動制御方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an original roll winding device for a central unwinding device, in which an electric motor is appropriately connected to a bobbin of an original fabric roll through a transmission device to positively unwind a film wound on the original fabric roll. The present invention relates to a feeding drive control method, and particularly to the above drive control method for positively feeding a raw roll that is eccentric to the bobbin axis at a constant speed.

【0002】[0002]

【従来の技術】従来、この種、中心巻出装置は原反ロー
ルのボビンに電動機を適宜伝動装置を介して連結し、該
電動機を定張力、定速巻出し制御することにより原反ロ
ールよりフイルムを積極的巻出している。
2. Description of the Related Art Conventionally, in this type of central unwinding device, an electric motor is connected to a bobbin of an original fabric roll through a transmission device, and the electric motor is controlled to be unwound at a constant tension and a constant speed. The film is being actively rolled out.

【0003】ところが一般に製膜工程を経て巻上げられ
た原反ロールはスリッター等、次工程の巻出装置に仕掛
けられ、巻出されるまでに該ロールに巻かれたフイルム
の歪などを補正し馴らすためのエージングと呼ばれる相
当の保存期間があり、この期間に原反ロールは自重と共
にボビン軸心に対し、偏心することが屡々発生する。
However, in general, a raw roll rolled up through a film forming process is set on a winding device in the next process such as a slitter, and is used to correct the distortion of the film wound on the roll until it is unrolled. There is a considerable storage period called aging, and during this period, the original roll often eccentric with the bobbin axis along with its own weight.

【0004】そして、このような偏心した原反ロールは
その後、上記の中心巻出装置に仕掛け巻出しを行なう
と、ロール1回転を周期として巻出し速度が変動し、脈
動を起こす。
Then, when such an eccentric original roll is subsequently unwound by the above-mentioned central unwinding device, the unwinding speed fluctuates with one rotation of the roll as a cycle, causing pulsation.

【0005】そのため、この巻出し速度の脈動を吸収緩
和すべく、現在のところ、巻出し装置と、ウエブ(フイ
ルム)引取りローラ間にダンサーローラ装置等を配設し
て脈動を吸収緩和し、ほぼ一定速度で引き取るようにし
ている。
Therefore, in order to absorb and reduce the pulsation of the unwinding speed, at present, a dancer roller device or the like is provided between the unwinding device and the web (film) take-up roller to absorb and reduce the pulsation. I try to pick it up at an almost constant speed.

【0006】[0006]

【発明が解決しようとする課題】しかし、近時、スリッ
ター等、機械の高速化に伴い、上記ダンサーローラ装置
では、ダンサーローラが急速に上下動し、著しいウエブ
(フイルム)張力の変動を生じ、遂には運転不能となっ
てスリッター等の高速作動を阻害し、効率の低下を招来
している。
However, with the recent increase in speed of machines such as slitters and the like, in the above dancer roller device, the dancer roller rapidly moves up and down, which causes remarkable fluctuation of web (film) tension. Eventually, it becomes impossible to operate and hinders the high speed operation of slitters, etc., resulting in a decrease in efficiency.

【0007】本発明は上述の如き実状に対処し、特に前
記原反ロールの偏心に対応して原反ロール1回転中の角
速度に周期的補正を加えることにより、前記脈動を除去
し、中心巻出し速度を略一定ならしめてスリッタ等の高
速作業に適応せしめることを目的とするものである。
The present invention copes with the actual situation as described above, and in particular, the pulsation is removed and the center winding is performed by periodically correcting the angular velocity during one revolution of the original roll in response to the eccentricity of the original roll. The purpose is to make the feeding speed substantially constant and adapt it to high-speed work such as slitter.

【0008】[0008]

【課題を解決するための手段】即ち、上記目的に適合す
る本発明の特徴は、先ず、基本としてボビン軸心に対し
偏心している原反ロールよりフイルムを巻出すにあた
り、該原反ロールが偏心していないときの通常の制御回
転に対し、原反ロールの偏心量と、ロールの回転中心座
標における回転角度及び偏心位置の位相ずれにもとづき
補正を加えて原反ロールの巻出し駆動モータの回転を制
御し、原反ロールの1回転に対し周期的に回転数を変化
せしめることにより巻出し速度を略一定にすることであ
る。
That is, the features of the present invention which meet the above-mentioned object are as follows. First, when the film is unwound from the original roll which is basically eccentric with respect to the bobbin axis, the original roll is eccentric. The rotation of the unwinding roll drive motor is corrected by adding the correction based on the eccentricity of the original roll, the rotation angle at the roll center coordinates, and the phase shift of the eccentric position to the normal control rotation when not centered. The unwinding speed is controlled to be substantially constant by controlling and periodically changing the rotation speed for one rotation of the original roll.

【0009】請求項2記載の発明はその具体的な態様で
あり、原反ロールの巻出し駆動を、原反ロールが偏心し
ていないときの通常の回転数Noに対し、回転数Nが
式;N=No(1−esin(θ+ψ)/R)(但しe
とは原反ロールの偏心量、Rは原反ロールの半径、θは
回転中心座標における巻出し回転角度、ψは偏心位置の
位相ずれ)を略満足するよう制御せしめることにある。
A second aspect of the present invention is a specific embodiment of the invention, in which the unwinding drive of the original roll is performed by the formula in which the rotational speed N is expressed with respect to the normal rotational speed No when the original roll is not eccentric; N = No (1-esin (θ + ψ) / R) (however, e
Is the eccentric amount of the original roll, R is the radius of the original roll, θ is the unwinding rotation angle at the rotation center coordinates, and ψ is the phase shift of the eccentric position).

【0010】[0010]

【作用】原反ロールの巻出し駆動を上記の如く通常のダ
ンサーローラ等による制御下での制御回転動に対し、原
反の偏心量と回転中心座標におけるロールの回転角度に
対応する補正を加えて制御せしめることにより偏心して
いる原反ロールからの巻出しでも巻出し速度はロールの
1回転を周期として偏心量、回転角度に対応して変化
し、脈動を除去して略一定の巻出し速度で巻出され、ス
リッター等においても一定速度で引取り、裁断、巻取り
の工程を円滑に進めることができる。
[Operation] In addition to the control rotational movement under the control of the normal roll roller unwinding drive as described above, the correction corresponding to the eccentricity of the raw fabric and the rotation angle of the roll at the rotation center coordinates is added. The unwinding speed from the roll that is eccentric due to the eccentricity is controlled in accordance with the eccentricity amount and the rotation angle with one rotation of the roll as a cycle. It is possible to smoothly carry out the steps of pulling, cutting and winding at a constant speed even in a slitter or the like.

【0011】[0011]

【発明の実施の形態】以下、更に本発明の具体的な実施
形態について説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Specific embodiments of the present invention will be described below.

【0012】図1は本発明の基本的な制御回路例であ
り、図2は同制御回路における巻出し軸の所定回転数決
定の原理を示す。
FIG. 1 shows an example of a basic control circuit of the present invention, and FIG. 2 shows the principle of determining a predetermined rotation speed of the unwinding shaft in the control circuit.

【0013】図1において、AはボビンBの軸心に対し
偏心量eだけ偏心を有する原反ロールであり、Rはその
半径、Mは原反ロールAの巻出し駆動用のモータを夫々
示し、原反ロールAに巻かれたフイルムFはダンサーロ
ーラ装置1によって巻出し速度の変動が吸収緩和されて
引取ローラ2を通じて巻出される。3はエアエシリン
ダ、4は変位検出器、5は引取り用モータ、6はライン
速度を測定するための回転計で、これら各装置によって
上記巻出し時の変動が検出され、ダンサーローラ装置1
が上下動して吸収緩和がなされることは従来、一般に行
なわれており、公知である。そしてこのとき、これら一
連の装置によって巻出し駆動モータは回転計6によって
検出された引取りモータ5のライン速度Vと、ダンサー
補正速度ΔVと、原反ロールAの直径により、回転数N
o(原反ロールに偏心がない場合の回転数)はNo=V
/2πRとなり、これが巻出し駆動モータMに与えられ
てモータMを回転させる。但し、このときダンサーロー
ラ装置1で検出された補正速度(ΔV)を加味してモー
タMを回転制御する。19は同モータMの回転計であ
る。
In FIG. 1, A is an original roll having an eccentricity e with respect to the axis of the bobbin B, R is its radius, and M is a motor for unwinding the original roll A. The film F wound on the original roll A is unwound by the dancer roller device 1 after the fluctuation of the unwinding speed is absorbed and relaxed. Reference numeral 3 is an air cylinder, 4 is a displacement detector, 5 is a take-up motor, 6 is a tachometer for measuring the line speed, and the fluctuations at the time of unwinding are detected by these respective devices.
It has been generally performed and is known in the art that the absorption and relaxation are performed by moving up and down. Then, at this time, the unwinding drive motor is rotated by the series speed of N by the line speed V of the take-up motor 5 detected by the tachometer 6, the dancer correction speed ΔV, and the diameter of the original roll A.
o (No. of revolutions when the original roll has no eccentricity) is V
/ 2πR, which is given to the unwinding drive motor M to rotate the motor M. However, at this time, the rotation speed of the motor M is controlled in consideration of the correction speed (ΔV) detected by the dancer roller device 1. Reference numeral 19 is a tachometer of the motor M.

【0014】しかし本発明において原反ロールAはボビ
ンBの軸心が偏心量eだけ偏心を有するロールであり、
上記の回転数Noによる巻出し駆動では脈動は解消され
ない。これは原反ロールAの偏心に起因する。従ってこ
のときの巻出し速度を略一定にするためには何らかの補
正が必要である。
However, in the present invention, the original roll A is a roll in which the axis of the bobbin B is eccentric by the eccentric amount e,
The pulsation cannot be eliminated by the unwinding drive with the above-described rotation speed No. This is due to the eccentricity of the original roll A. Therefore, some kind of correction is necessary to keep the unwinding speed substantially constant.

【0015】図1において、11は回転エンコーダなど
の巻芯回転角度検出器、12はレーザー変化計など固定
センサー、13,14は演算増幅器、15,16は演算
器、17は加減反転器、18は増幅器を夫々示してい
て、これらによって補正回路が形成され、前記回転数N
oに補正が加えられる。
In FIG. 1, 11 is a core rotation angle detector such as a rotary encoder, 12 is a fixed sensor such as a laser change meter, 13 and 14 are operational amplifiers, 15 and 16 are arithmetic units, 17 is an adjustable inverter, and 18 Are amplifiers, respectively, which form a correction circuit, and which have
Correction is added to o.

【0016】ここで、上記補正による巻出し軸の所要回
転数を決定する原理を図2にもとづいて説明する。
The principle of determining the required number of rotations of the unwinding shaft by the above correction will be described with reference to FIG.

【0017】今、偏心を有する原反ロールAを図2の如
くP点においてロール外周の接線方向に巻き出す場合、
2Rを原反の直径、eを原反ロールの巻出し中心に対す
る偏心量、θをロールの回転角度、γをP点(偏心位置
に応じて横座標X−X軸上を移動する。)と、回転中心
縦座標Y−Y軸との距離、即ち任意の位置における回転
半径とすると、原反ロール径に対し偏心量eが小さいと
き、ロールの回転角度θに対するγの関係は次の通りで
ある。
Now, when the original roll A having eccentricity is unwound in the tangential direction of the roll outer periphery at the point P as shown in FIG.
2R is the diameter of the original fabric, e is the amount of eccentricity with respect to the unwinding center of the original fabric, θ is the rotation angle of the roll, and γ is the point P (moves on the abscissa XX axis depending on the eccentric position). , The rotation center ordinate is the distance from the Y-Y axis, that is, the radius of gyration at any position, and when the eccentricity e is small with respect to the original roll diameter, the relationship of γ to the rotation angle θ of the roll is is there.

【0018】[0018]

【数1】γ=R+esinθ・・・・・(1)[Formula 1] γ = R + esin θ (1)

【0019】そして、ライン速度V(一定)で運転する
場合、たるみや伸びを発生させないための偏心位置に対
応した巻出し軸の回転数Nは以下のようになる。
When operating at the line speed V (constant), the rotation speed N of the unwinding shaft corresponding to the eccentric position for preventing slackening or extension is as follows.

【0020】[0020]

【数2】N=V/2π(R+esinθ)・・・(2)[Formula 2] N = V / 2π (R + esin θ) (2)

【0021】一方、偏心のない場合を仮定したときの回
転数Noは、
On the other hand, the number of revolutions No assuming no eccentricity is

【0022】[0022]

【数3】No=V/2πR・・・(3)[Equation 3] No = V / 2πR (3)

【0023】である。これら両者は何れの場合もライン
速度Vは等しくなければならないから、
## EQU1 ## In both cases, the line speed V must be the same,

【0024】[0024]

【数4】 2π(R+esinθ)・N=2πR・No・・・(4)[Equation 4] 2π (R + esinθ) · N = 2πR · No ... (4)

【0025】従って、Therefore,

【0026】[0026]

【数5】 N=No/(1+esinθ/R)・・・(5)## EQU00005 ## N = No / (1 + esin.theta. / R) (5)

【0027】ところが原反ロール径Rに対し偏心量eは
非常に小さく(実際には原反ロール径400〜600m
mに対し、偏心は10mm以下である。)esinθ/
Rは1に比し極めて小であるから2項級数展開し、微小
項を省略すれば回転数Nは略
However, the eccentricity e is much smaller than the original roll diameter R (actually, the original roll diameter is 400 to 600 m).
With respect to m, the eccentricity is 10 mm or less. ) Esin θ /
Since R is extremely small compared to 1, the binomial series expansion is performed, and if minute terms are omitted, the rotational speed N is approximately

【0028】[0028]

【数6】N=No(1−esinθ/R)・・・(6)[Equation 6] N = No (1-esin θ / R) (6)

【0029】となる。## EQU1 ##

【0030】この(6)式は上記より明らかなように偏
心のない場合の回転数Noと偏心による補正項である
(−Noesinθ/R)に分けられる。このうち前者
は原反ロールの偏心を考えない場合の通常の巻出し軸回
転制御を意味する。実際は以上の基本回路にダンサーロ
ーラ装置によって検出した補正速度(ΔV)が加味され
る。従ってこれをベースにして独立補正分として後者を
加味すればよいことになる。図3は、その状況を示す。
As is clear from the above, the equation (6) is divided into the number of revolutions No when there is no eccentricity and (-Noesin θ / R) which is a correction term due to eccentricity. Of these, the former means normal unwinding shaft rotation control when the eccentricity of the original roll is not considered. Actually, the correction speed (ΔV) detected by the dancer roller device is added to the above basic circuit. Therefore, it is sufficient to add the latter as an independent correction amount based on this. FIG. 3 shows the situation.

【0031】かくして上記原理にもとづき得られた補正
を加味する態様を図1の補正回路にあてはめると、今、
原反ロールAの軸心から固定センサー12までの距離を
L、固定センサー12より原反ロールA表面までの距離
をlとし、角度検出器11によって得られた初期の回転
角度、即ち偏心位置をθとすれば演算増幅器14に前記
センサーからロール表面までの距離lと初期回転角度θ
にもとづく信号を入力する一方、上記距離lを他の演算
増幅器13に入力し、角度検出器11の回転角度θを入
力することにより偏心位置の運転中の位置のずれ角ψを
検出する。また、角度検出器11の回転角度θの出力を
演算器15に入力し偏心のない場合の回転数Noを入力
することによりNosin(θ+ψ)を演算器15で演
算する。
Applying the mode in which the correction obtained based on the above principle is added to the correction circuit shown in FIG.
Let L be the distance from the axial center of the original roll A to the fixed sensor 12, and let l be the distance from the fixed sensor 12 to the surface of the original roll A. Let the initial rotation angle obtained by the angle detector 11, that is, the eccentric position be If θ is set, the operational amplifier 14 determines the distance 1 from the sensor to the roll surface and the initial rotation angle θ.
While inputting a signal based on the above, the distance l is input to another operational amplifier 13 and the rotation angle θ of the angle detector 11 is input to detect the deviation angle ψ of the eccentric position during operation. Further, Nosin (θ + ψ) is calculated by the arithmetic unit 15 by inputting the output of the rotation angle θ of the angle detector 11 to the arithmetic unit 15 and the rotation speed No when there is no eccentricity.

【0032】一方演算増幅器13より得られた出力の原
反ロールの径Rと偏心量eを演算器16に入力し、その
出力を反転器17で+−反転して増幅器18へ入力す
る。
On the other hand, the output roll diameter R and the eccentricity e of the output obtained from the operational amplifier 13 are input to the arithmetic unit 16, and the output thereof is + -inverted by the inverter 17 and input to the amplifier 18.

【0033】この増幅器18へはこの原反ロール径Rと
偏心量eにもとづく信号の外、前述した演算器15で演
算された信号が通常の回転数Noと共に入力され、通常
の回転数Noが補正回転数Nとして巻出し駆動モータM
の回転を制御し本発明の目的を達成するに至る。
In addition to the signal based on the original roll diameter R and the amount of eccentricity e, the signal calculated by the calculator 15 is also input to the amplifier 18 together with the normal rotation speed No. Unwinding drive motor M as corrected rotation speed N
To achieve the object of the present invention.

【0034】図4は、上記制御回路を電気系のみで構成
したものであり、作動態様は前記図1の基本制御回路で
説明したのと同様である。図中、13′は演算増幅器、
16′は演算器である。なお、この場合、原反ロールの
径Rならびに偏心量eとしては1回転当たりで下記式に
よる。
FIG. 4 shows the above-mentioned control circuit constituted only by an electric system, and its operation mode is the same as that explained in the basic control circuit of FIG. In the figure, 13 'is an operational amplifier,
16 'is an arithmetic unit. In this case, the diameter R of the original roll and the amount of eccentricity e are calculated by the following equation per rotation.

【0035】[0035]

【数7】 R=[(L−lmin)+(L−lmax)]/2 e=(lmax+lmin)/2## EQU00007 ## R = [(L-lmin) + (L-lmax)] / 2 e = (lmax + lmin) / 2

【0036】またψは偏心max位置の位相のずれであ
る。ψが0であれば初期回転角度θのみとなる。
Further, ψ is a phase shift at the eccentricity max position. If ψ is 0, there is only the initial rotation angle θ.

【0037】図5は更に制御回路を電気系及び機械系の
両者で構成したものであり、通常の平均回転数Noは閉
鎖ループで前記図4と同様であるがNo×sin(θ+
ψ)を巻出し軸の回転から同調させて偏心カムKを利用
して機械的に行なっている。
FIG. 5 shows a control circuit composed of both an electric system and a mechanical system. The normal average rotation speed No is a closed loop which is the same as that shown in FIG. 4, but No.times.sin (.theta. +).
ψ) is synchronized with the rotation of the unwinding shaft and mechanically performed by using the eccentric cam K.

【0038】この場合も、その作動態様は前述した図1
にもとづく説明と同様であり、詳細は省略する。
Also in this case, the operation mode is as shown in FIG.
The details are omitted because it is similar to the description based on the above.

【0039】かくして本発明は原反ロールがボビン軸心
に対し偏心しているとしてもその偏心量と回転中心座標
におけるロールの回転角度に対応して平均回転数の補正
が行なわれ、ロールの1回転に対し、周期的に回転数を
変化させてフイルムの巻出しを略一定速度をもって行な
うことができる。
Thus, in the present invention, even if the original roll is eccentric with respect to the axis of the bobbin, the average number of revolutions is corrected according to the amount of eccentricity and the rotation angle of the roll at the coordinates of the rotation center, and one revolution of the roll is performed. On the other hand, the rotation speed can be changed periodically to unwind the film at a substantially constant speed.

【0040】なお、本発明は特に原反ロールの偏心があ
まり大きくなく、ロールの1回転内での回転数を周期的
に変化させても巻きが崩れない場合に有効であり、好適
である。
The present invention is particularly suitable and effective when the eccentricity of the original roll is not so large and the winding does not collapse even if the number of revolutions within one revolution of the roll is periodically changed.

【0041】[0041]

【発明の効果】本発明は以上のようにボビン軸心に対し
偏心している原反ロールよりフイルムを巻出すにあた
り、偏心していないときの通常の制御回転数を偏心量及
び回転座標上の偏心位置に対応してロールの1回転中の
角速度を周期的に補正し、フイルムの巻出し速度を略一
定にする方法であり、従来の巻出しにおいて原反ロール
の偏心から屡々発生していた速度変動による脈動を排除
し、原反ロールに偏心があるとしても一定速度で巻出
し、円滑な巻出しを可能ならしめてスリッターの高速化
にも充分、対応することがてき、原反ロールよりフイル
ムを巻出す工程を有するスリッター等の作業効率ならび
に製品品質の向上に極めて顕著な効果を奏する。
As described above, according to the present invention, when the film is unwound from the original roll which is eccentric with respect to the center of the bobbin axis, the normal control rotational speed when not eccentric is the eccentric amount and the eccentric position on the rotational coordinate. This is a method of periodically correcting the angular velocity during one rotation of the roll to make the unwinding speed of the film substantially constant. In the conventional unwinding, the speed fluctuation that often occurs due to the eccentricity of the original roll Even if the original roll has eccentricity, it can be unrolled at a constant speed to allow smooth unwinding, and it can handle the speed of the slitter sufficiently. It is extremely effective in improving the work efficiency and product quality of a slitter or the like having a step of taking out.

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

【図1】本発明の基本的な制御回路を示すブロック図で
ある。
FIG. 1 is a block diagram showing a basic control circuit of the present invention.

【図2】同制御回路における巻出し軸の回転数決定の原
理説明図である。
FIG. 2 is an explanatory view of the principle of determining the rotation speed of the unwinding shaft in the control circuit.

【図3】本発明における回転制御の合成状況説明図であ
る。
FIG. 3 is an explanatory diagram of a combined state of rotation control in the present invention.

【図4】本発明の実施に係る制御回路の1例を示すブロ
ック図である。
FIG. 4 is a block diagram showing an example of a control circuit according to an embodiment of the present invention.

【図5】本発明の実施に係る別の制御回路例を示すブロ
ック図である。
FIG. 5 is a block diagram showing another control circuit example according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

A 原反ロール B ボビン F フイルム No 偏心がない通常の平均回転数 N 本発明に係る所要回転数 e 偏心量 θ 回転角度 A original roll B bobbin F film No normal average speed without eccentricity N required speed e according to the invention e eccentricity θ rotation angle

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 ボビン軸心に対し偏心している原反ロー
ルよりフイルムを巻出すにあたり、該原反ロールが偏心
していないときの通常の制御回転に対し、原反ロールの
偏心量と、ロールの回転中心座標における回転角度及び
偏心位置の位相ずれにもとづき補正を加えて原反ロール
の巻出し駆動モータの回転を制御し、原反ロールの1回
転に対し周期的に回転数を変化せしめることにより巻出
し速度を略一定ならしめることを特徴とする偏心原反ロ
ールの等速巻出し駆動制御方法。
1. When the film is unwound from an original roll that is eccentric with respect to the axis of the bobbin, the eccentricity of the original roll and the roll amount relative to normal control rotation when the original roll is not eccentric By controlling the rotation of the unwinding drive motor of the original roll by adding the correction based on the rotation angle in the rotation center coordinate and the phase shift of the eccentric position, the rotation speed is changed periodically for one rotation of the original roll. A uniform speed unwinding drive control method for an eccentric original roll, characterized in that the unwinding speed is made substantially constant.
【請求項2】 原反ロールの巻出し駆動を、原反ロール
が偏心していないときの通常の回転数Noに対し、回転
数Nが式;N=No(1−esin(θ+ψ)/R)
(但しeとは原反ロールの偏心量、Rは原反ロールの半
径、θは回転中心座標における巻出し回転角度、ψは偏
心位置の位相ずれ)を満足するよう制御せしめる請求項
1記載の偏心原反ロールの等速巻出し駆動制御方法。
2. The unwinding drive of the original roll is performed by the following formula: N = No (1-esin (θ + ψ) / R) with respect to the normal rotational speed No when the original roll is not eccentric.
(Where e is the eccentric amount of the original roll, R is the radius of the original roll, θ is the unwinding rotation angle at the rotation center coordinate, and ψ is the phase shift of the eccentric position). Eccentric roll roll constant speed unwinding drive control method.
JP7322145A 1995-11-15 1995-11-15 Eccentric roll roll constant speed unwinding drive control method Expired - Lifetime JP2683892B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7322145A JP2683892B2 (en) 1995-11-15 1995-11-15 Eccentric roll roll constant speed unwinding drive control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7322145A JP2683892B2 (en) 1995-11-15 1995-11-15 Eccentric roll roll constant speed unwinding drive control method

Publications (2)

Publication Number Publication Date
JPH09142707A JPH09142707A (en) 1997-06-03
JP2683892B2 true JP2683892B2 (en) 1997-12-03

Family

ID=18140437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7322145A Expired - Lifetime JP2683892B2 (en) 1995-11-15 1995-11-15 Eccentric roll roll constant speed unwinding drive control method

Country Status (1)

Country Link
JP (1) JP2683892B2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8377249B2 (en) 2009-04-03 2013-02-19 The Procter & Gamble Company Appraratus and method for providing a localized speed variance of an advancing substrate
US8740130B2 (en) 2010-10-25 2014-06-03 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US8733685B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Apparatus for reducing web feed rate variations induced by parent roll geometry variations
US8757535B2 (en) 2010-10-25 2014-06-24 The Procter & Gamble Company Method for reducing web feed rate variations induced by parent roll geometry variations
US8733686B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Alternative apparatus for reducing web feed rate variations induced by parent roll geometry variations
US9434572B2 (en) 2010-10-25 2016-09-06 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US9434573B2 (en) 2010-10-25 2016-09-06 The Procter & Gamble Company Alternative method for reducing web feed rate variations induced by parent roll geometry variations
US8733687B2 (en) 2010-10-25 2014-05-27 The Procter & Gamble Company Alternative apparatus for reducing web feed rate variations induced by parent roll geometry variations
US9144624B2 (en) 2013-07-19 2015-09-29 The Procter & Gamble Company Method for providing a localized dwell in an advancing web

Also Published As

Publication number Publication date
JPH09142707A (en) 1997-06-03

Similar Documents

Publication Publication Date Title
US4496112A (en) Method of controlling a web winding process
JP2683892B2 (en) Eccentric roll roll constant speed unwinding drive control method
JP2008056390A (en) Belt-like body passing through method and its device
JP3523429B2 (en) Yarn winding machine for continuously running yarn
US20070145178A1 (en) Method and device for threading a web
CA2756248A1 (en) Method and apparatus for reducing web feed rate variations induced by parent roll geometry variations
CA2756287A1 (en) An alternative apparatus for reducing web feed rate variations induced by parent roll geometry variations
US8733685B2 (en) Apparatus for reducing web feed rate variations induced by parent roll geometry variations
JP2000068170A (en) Winder for strip-like materials
JPH06255885A (en) Tension applying dancer roller device for linear unit
JP3541895B2 (en) Diameter calculation method
US8757535B2 (en) Method for reducing web feed rate variations induced by parent roll geometry variations
CA2756260A1 (en) An alternative method for reducing web feed rate variations induced by parent roll geometry variations
JP2001048382A (en) Web cutting device and its control method
JPH11171381A (en) Eccentric state detector of web roll and web unwinding device
JPH0885659A (en) Web work machine
JP3522868B2 (en) Winding / rewinding control device
CN210339800U (en) High-speed bobbin paper rewinding machine
JP2765926B2 (en) Winder control device
JPH08277050A (en) Mechanism and method for generating tension of take-up device
JP7018186B2 (en) Web winding device and web winding method
JP2001019248A (en) Speed control method and speed control device
JP2003054801A (en) Control device for winding machine
JP2003246520A (en) Tension control device for taking-up paper
JP3921103B2 (en) Paper winding tension control device

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080815

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090815

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090815

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100815

Year of fee payment: 13

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100815

Year of fee payment: 13

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110815

Year of fee payment: 14

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120815

Year of fee payment: 15

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120815

Year of fee payment: 15

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130815

Year of fee payment: 16

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130815

Year of fee payment: 16

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140815

Year of fee payment: 17

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term