JPH02207920A - Method for preventing imbalance of tension of rewinder - Google Patents
Method for preventing imbalance of tension of rewinderInfo
- Publication number
- JPH02207920A JPH02207920A JP2858789A JP2858789A JPH02207920A JP H02207920 A JPH02207920 A JP H02207920A JP 2858789 A JP2858789 A JP 2858789A JP 2858789 A JP2858789 A JP 2858789A JP H02207920 A JPH02207920 A JP H02207920A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- sheet material
- sliding device
- imbalance
- rewinder
- 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
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000004804 winding Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010291 electrical method Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
(産業上の利用分野)
本発明は再巻取機における幅方向の張力の不平衡をなく
すように巻戻機の位置を制御する再巻取機の張力不平衡
防止方法に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a rewinding machine that controls the position of an unwinding machine so as to eliminate tension imbalance in the width direction in the rewinding machine. This invention relates to a method for preventing tension imbalance.
(従来の技術)
一般に再巻取機では、上流工程で巻き取られたシート材
を巻戻機に結合し、巻戻機から巻戻されたシート材を加
工、切断などの工程を経た後に製品として巻取機に巻取
る。(Prior art) Generally, in a rewinding machine, the sheet material wound up in the upstream process is connected to the unwinding machine, and the sheet material rewound from the unwinding machine is processed, cut, etc. Wind it up on a winder.
その際シート材の張力が常に一定になるように巻戻機の
制動力を電気式または機械式方法によって制御する。At this time, the braking force of the rewinding machine is controlled by an electrical or mechanical method so that the tension of the sheet material is always constant.
従来の再巻取機の構成を第2図に示す。The configuration of a conventional rewinding machine is shown in FIG.
第2図において、巻戻機基礎1の上に据付けられた巻戻
機2から巻戻されたシート材3は、シート材張力を検出
する張力検出器4を備えたロール5を通過した後、巻取
ロール6に巻取られる。In FIG. 2, the sheet material 3 rewound from the unwinding machine 2 installed on the unwinding machine foundation 1 passes through a roll 5 equipped with a tension detector 4 for detecting the tension of the sheet material. It is wound up on a winding roll 6.
張力制御装置7は常に一定の張力が得られるように制動
機8に対して制動力指令を出力する。The tension control device 7 outputs a braking force command to the brake 8 so that a constant tension is always obtained.
上記従来の方法ではシート材の幅方向に張力の不平衡が
発生しても、それを補償することはできない。In the conventional method described above, even if tension imbalance occurs in the width direction of the sheet material, it cannot be compensated for.
すなわち、上流工程でシート材を巻き取った際に、シー
ト材が幅方向に対して不均一に巻き取られたような場合
、巻戻機でそのまま巻戻すとシート材が幅方向に移動し
、その結果シート材に対して剪断力が働いてシート材の
幅方向に張力の不平衡が発生する。In other words, when the sheet material is wound up in the upstream process, if the sheet material is wound unevenly in the width direction, if the sheet material is unwound with an unwinding machine, the sheet material will move in the width direction, As a result, a shearing force acts on the sheet material, causing tension imbalance in the width direction of the sheet material.
このため、油圧等の動力によって巻戻機基礎1を幅方向
に移動させる摺動装置9を設け、シート材の材質や特性
の偏った部分を巻取ロール6で巻取る際に一様に分布さ
せるようにしており、この場合の左右の移動方向の指令
は操作員の判断で行ったり、あるいは速度に応じた反復
速度で自動的に動作するようにシーケンス装212から
出力している。For this reason, a sliding device 9 is provided that moves the unwinding machine base 1 in the width direction using power such as hydraulic pressure, so that the portions of the sheet material with uneven materials and characteristics are uniformly distributed when being wound with the winding roll 6. In this case, commands for left and right movement directions are given by the operator's judgment, or outputted from the sequence device 212 so as to automatically operate at a repetition rate corresponding to the speed.
(発明が解決しようとする課題)
上記のようにシート材が幅方向に対して不均一に巻き取
られているような場合、巻戻機でそのまま巻戻すとシー
ト材が幅方向に移動することになり、シート材に剪断力
が働いてシート材の幅方向に張力の不平衡が発生する。(Problem to be Solved by the Invention) When the sheet material is wound unevenly in the width direction as described above, the sheet material may move in the width direction if it is unwound using an unwinding machine. As a result, a shearing force acts on the sheet material, causing tension imbalance in the width direction of the sheet material.
その結果、シート材にしわが生じたり、張力の不平衡に
よってシート材の一部分に張力が集中してシート材の破
断を招く恐れがあり、さらに巻戻機を摺動装置で幅方向
に移動させる場合にも手動あるいは反復動作で行ってい
るので、張力の不平衡を十分に除去することができなか
った。As a result, wrinkles may occur in the sheet material, tension may be concentrated in a portion of the sheet material due to tension imbalance, and the sheet material may break.Furthermore, if the unwinding machine is moved in the width direction by a sliding device, However, since this was done manually or by repetitive motions, it was not possible to sufficiently eliminate tension imbalances.
本発明は、幅方向におけるシート材張力の不平衡を検出
し、これに基づいて巻戻機を幅方向に自動的に移動させ
ることによって不平衡を防止する再巻取機の張力不平衡
防止方法を提供することを目的としている。The present invention provides a method for preventing tension unbalance in a re-winding machine, which prevents unbalance by detecting unbalance in sheet material tension in the width direction and automatically moving the unwinding machine in the width direction based on the detected unbalance. is intended to provide.
(課題を解決するための手段と作用)
本発明による巻取機の張力不平衡防止方法は、シート材
の張力を左右両側の張力検出器で検出し、その検出出力
に応じて左右の張力の不平衡がゼロとなるように巻戻機
基礎を摺動装置によって自動的に幅方向に移動させるも
のである。(Means and effects for solving the problem) A method for preventing tension imbalance in a winding machine according to the present invention detects the tension of a sheet material with tension detectors on both the left and right sides, and adjusts the tension on the left and right sides according to the detection output. The unwinding machine foundation is automatically moved in the width direction by a sliding device so that the unbalance becomes zero.
(実施例)
本発明による再巻取機の張力不平衡防止方法の一実施例
を第1図に示す。(Example) An example of the method for preventing tension imbalance in a rewinder according to the present invention is shown in FIG.
第1図には、シート材の張力不平衡を検出する左右の張
力検出器13.14、偏差増幅器15、および比較器1
8A 518Bが追加されており、他は従来の第2図と
同じである。FIG. 1 shows left and right tension detectors 13 and 14 for detecting tension imbalance in the sheet material, a deviation amplifier 15, and a comparator 1.
8A and 518B have been added, and the rest is the same as the conventional figure 2.
シート材の張力は左右の張力検出器13および14によ
って電気信号として検出され、偏差増幅器15に人力さ
れる。偏差増幅器I5は左右の張力の偏差を増幅し、摺
動装置9を左右のどちらへ移動させるかの基準信号を出
力する。The tension of the sheet material is detected as an electrical signal by the left and right tension detectors 13 and 14, and is manually input to the deviation amplifier 15. The deviation amplifier I5 amplifies the deviation between the left and right tensions and outputs a reference signal for determining whether to move the sliding device 9 to the left or right.
比較器LEA 、 16Bはこの基準信号の極生を判別
し、極生が正のときは摺動装置を右側へ、極生が負のと
きは左側へ摺動装置9に対して指令を出力する。このと
き基準信号がゼロ付近では左右方向の移動を反復して収
束しないことがあるので、比較器16A 、 18Bの
極少判別に不感帯りを設けている。Comparators LEA and 16B determine the polarity of this reference signal, and output a command to the sliding device 9 to move the sliding device to the right when the polarity is positive, and to the left when the polarity is negative. . At this time, when the reference signal is near zero, it may repeat horizontal movement and not converge, so a dead zone is provided in the minimal discrimination of the comparators 16A and 18B.
摺動装置9は比較器16A 、 16Bの出力に応じて
巻戻機基礎1を移動させ、これによってシート材3の左
右の張力不平衡をゼロにするように動作する。The sliding device 9 moves the unwinding machine foundation 1 in accordance with the outputs of the comparators 16A and 16B, thereby operating to make the left and right tension imbalance of the sheet material 3 zero.
張力不平衡がゼロ、すなわち左側と右側の張力偏差がゼ
ロになると増幅器15の出力もゼロとなり、摺動装置9
が停止してシート材の張力は平衡状態に保たれる。When the tension unbalance becomes zero, that is, the tension deviation between the left and right sides becomes zero, the output of the amplifier 15 also becomes zero, and the sliding device 9
is stopped and the tension in the sheet material is maintained in equilibrium.
以上説明したように本発明によれば、シート材の幅方向
における張力の不平衡を検出し、この不平衡がなくなる
ように巻戻機を自動的に左右に移動させているので、シ
ート材の幅方向の張力不平衡を効果的に防止することが
可能となる。As explained above, according to the present invention, an unbalance in the tension in the width direction of the sheet material is detected, and the unwinding machine is automatically moved left and right to eliminate this unbalance. It becomes possible to effectively prevent tension imbalance in the width direction.
第1図は本発明による再巻取機の張力不平衡防止方法の
一実施例を示す系統図、第2図は従来の再巻取機の制御
方法を示す系統図である。
1・・・巻戻機基礎 2.・・巻戻機3・・・シ
ート材 4.13.14・・・張力検出器5・・・
張力検出ロール 6・・・巻取ロール7・・・張力制
御装置 8・・・制動機9・・・摺動装置
12・・・シーケンス装置15・・・偏差増幅器
18A 、 16B・・・比較器代理人 弁理士
猪 股 祥 晃
(ほか1名)FIG. 1 is a system diagram showing an embodiment of a method for preventing tension imbalance in a rewinder according to the present invention, and FIG. 2 is a system diagram showing a conventional method for controlling a rewinder. 1...Rewinder basics 2. ... Rewinding machine 3 ... Sheet material 4.13.14 ... Tension detector 5 ...
Tension detection roll 6... Take-up roll 7... Tension control device 8... Brake machine 9... Sliding device
12... Sequence device 15... Deviation amplifier
18A, 16B... Comparator agent Patent attorney
Yoshiaki Inomata (and 1 other person)
Claims (1)
取機に巻取る再巻取機におけるシート材の幅方向の張力
不平衡を防止する再巻取機の張力不平衡防止方法におい
て、シート材の左右の張力を別々に検出し、その差の大
きさおよび極性に応じて巻戻機を左右方向に摺動させる
ことを特徴とする再巻取機の張力不平衡防止方法。A method for preventing tension unbalance in a re-winding machine that prevents tension unbalance in the width direction of a sheet material in a re-winding machine that winds a sheet material coiled into a coil on a rewinding machine at a predetermined tension. A method for preventing tension unbalance in a rewinder, characterized in that the left and right tensions of a sheet material are separately detected, and the unwinder is slid in the left and right direction depending on the magnitude and polarity of the difference.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2858789A JPH02207920A (en) | 1989-02-09 | 1989-02-09 | Method for preventing imbalance of tension of rewinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2858789A JPH02207920A (en) | 1989-02-09 | 1989-02-09 | Method for preventing imbalance of tension of rewinder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02207920A true JPH02207920A (en) | 1990-08-17 |
Family
ID=12252732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2858789A Pending JPH02207920A (en) | 1989-02-09 | 1989-02-09 | Method for preventing imbalance of tension of rewinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02207920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016132020A (en) * | 2015-01-21 | 2016-07-25 | Jfeスチール株式会社 | Metal strip winding method and metal strip winding device |
-
1989
- 1989-02-09 JP JP2858789A patent/JPH02207920A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016132020A (en) * | 2015-01-21 | 2016-07-25 | Jfeスチール株式会社 | Metal strip winding method and metal strip winding device |
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