JP5930828B2 - Winding device - Google Patents

Winding device Download PDF

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JP5930828B2
JP5930828B2 JP2012098697A JP2012098697A JP5930828B2 JP 5930828 B2 JP5930828 B2 JP 5930828B2 JP 2012098697 A JP2012098697 A JP 2012098697A JP 2012098697 A JP2012098697 A JP 2012098697A JP 5930828 B2 JP5930828 B2 JP 5930828B2
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winding
web
shaft
winding shaft
drive motor
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JP2013227093A (en
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亮 森川
亮 森川
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Fuji Kikai Kogyo Co Ltd
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Fuji Kikai Kogyo Co Ltd
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Priority to KR1020130030967A priority patent/KR20130109051A/en
Priority to CN201310097961.4A priority patent/CN103359517B/en
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  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Description

本発明は、プラスチックフィルム等からなる長尺状のウェブを巻き取る巻取装置に関する。   The present invention relates to a winding device for winding a long web made of a plastic film or the like.

従来より、印刷機や塗工装置を用いて印刷や塗工を施したプラスチックフィルム等の長尺状のウェブは、巻取装置でロール状に巻き取られて次工程に引き渡されるようになっている。   Conventionally, a long web such as a plastic film that has been printed or coated using a printing machine or a coating device is wound up in a roll shape by a winding device and delivered to the next process. Yes.

例えば、特許文献１の巻取装置は、所謂ターレット式巻取装置と呼ばれるものであり、長手方向中央を中心に回転する略帯状の回転体を備え、該回転体の各端部には、ウェブを巻き取る巻取軸が回転可能に軸支されている。該巻取軸でウェブを巻き取る際、ウェブに加わる巻取張力を一定にして巻き取ると、巻取径が大きくなるにつれて巻取軸近傍の接線方向に大きな力が発生し、これを起因として巻き取ったウェブにシワ等の巻取不良が発生してしまうので、巻取張力の初期値を予め設定して巻き取り始めるとともに、巻取張力を上記初期値から緩やかに低下させながら巻き取って巻取不良の発生を抑制するようにしている。   For example, the winding device of Patent Document 1 is a so-called turret type winding device, and includes a substantially band-shaped rotating body that rotates around the center in the longitudinal direction, and a web is provided at each end of the rotating body. A take-up shaft that winds up the shaft is rotatably supported. When winding the web with the winding shaft, if the winding tension applied to the web is kept constant, a large force is generated in the tangential direction near the winding shaft as the winding diameter increases. Winding defects such as wrinkles occur in the wound web, so that the initial value of the winding tension is set in advance and winding is started, and the winding tension is gradually lowered from the initial value. The occurrence of winding failure is suppressed.

また、上記巻取装置は、上記ウェブの搬送を止めることなく２つの巻取軸間でウェブの移行を行うようになっていて、まず一方の巻取軸を回転させてウェブを巻き取り、巻取終了間近には、他方の巻取軸を回転させるとともに上記両巻取軸間のウェブ搬送方向上流側で上記ウェブを切断し、上記他方の巻取軸の巻取開始時の巻取張力が上記初期値となるようにして上記未巻取の巻取軸でウェブを巻き取り始めるようになっている。   Further, the winding device is configured to move the web between the two winding shafts without stopping the conveyance of the web. First, the web is wound by rotating one of the winding shafts. Near the end of winding, the other winding shaft is rotated and the web is cut upstream in the web conveyance direction between the two winding shafts, and the winding tension at the start of winding of the other winding shaft is The web is started to be wound around the unwinded winding shaft so as to have the initial value.

特開平１０−７３００号公報（段落０００４〜０００９欄、図２）Japanese Patent Laid-Open No. 10-7300 (paragraphs 0004 to 0009, FIG. 2)

しかし、特許文献１のように、ウェブの巻取張力を変動させながら巻き取ることにより、巻取軸近傍に発生するシワの抑制に一定の効果が見られるものの、ウェブに加わる巻取張力が予め設定された初期値から緩やかに低下するようにウェブを巻き取ると、ウェブの移行時に巻取張力が大きく変動してガイドローラの撓み量が大きく変化するので、各ガイドローラの回転軸の傾きや位置がそれぞれ変化してウェブの搬送経路が大きく変わってしまい、これを起因としてシワや巻き取り位置のズレといった巻取不良が発生することとなる。   However, as disclosed in Patent Document 1, by winding while changing the winding tension of the web, a certain effect can be seen in suppressing wrinkles generated in the vicinity of the winding shaft. When the web is wound so that it gradually decreases from the set initial value, the winding tension greatly fluctuates at the time of web transition and the amount of deflection of the guide roller changes greatly. The respective positions change and the web conveyance path changes greatly, and this causes a winding failure such as wrinkles and winding position misalignment.

本発明は、斯かる点に鑑みてなされたものであり、その目的とするところは、巻取軸間のウェブの移行時において、ウェブの搬送経路を安定させて巻取不良の発生を防止できる巻取装置を提供することにある。   The present invention has been made in view of such points, and an object of the present invention is to stabilize the web conveyance path and prevent the occurrence of winding failure at the time of web transfer between winding shafts. It is to provide a winding device.

上記の目的を達成するために、本発明は、巻取軸間でウェブを移行させる過程において、移行前の巻取軸で巻き取るウェブに加わる巻取張力の制御に工夫を凝らしたことを特徴とする。   In order to achieve the above object, the present invention is characterized in that in the process of transferring the web between the winding shafts, the invention has been devised to control the winding tension applied to the web wound by the winding shaft before the transfer. And

具体的には、連続して搬送される長尺状のウェブを回転動作によりロール状に巻き取る複数の巻取軸と、該各巻取軸にそれぞれ駆動連結された駆動モータと、上記ウェブを切断する切断手段と、上記駆動モータ及び切断手段に接続され、当該駆動モータ及び切断手段のそれぞれに作動信号を出力する制御手段とを備え、該制御手段は、上記ウェブを上記各巻取軸のうちの１つに巻き取る際、当該巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が予め設定された初期値から低下するように作動信号を出力し、巻取終了間近には、次にウェブを巻き取る未巻取の巻取軸を回転させる駆動モータに当該未巻取の巻取軸を回転させるように作動信号を出力し、且つ、上記未巻取の巻取軸と巻取中の巻取軸との間のウェブ搬送方向上流側で上記ウェブを切断するように上記切断手段に作動信号を出力し、上記未巻取の巻取軸でウェブを巻き取り始める直前に、上記未巻取の巻取軸を回転させる駆動モータに上記ウェブの巻取開始時の巻取張力が上記初期値になるように作動信号を出力する巻取装置を対象とし、次のような解決手段を講じた。 Specifically, a plurality of winding shafts that take up a continuous long web that is wound into a roll shape by a rotating operation, a drive motor that is drivingly connected to each winding shaft, and the web is cut. Cutting means, and a control means connected to the drive motor and the cutting means and outputting an operation signal to each of the drive motor and the cutting means, and the control means sends the web to each of the winding shafts. When winding up to one, an operation signal is output so that the winding tension applied to the web is reduced from a preset initial value to the drive motor that rotates the winding shaft, An operation signal is output to the drive motor for rotating the unwinded winding shaft for winding the web, and the unwinded winding shaft and the winding are rotated. Upstream side of the web conveyance direction with the inner winding shaft An operation signal is output to the cutting means so as to cut the web, and the web is fed to a drive motor that rotates the unwinded winding shaft immediately before starting to wind the web with the unwinded winding shaft. The following solution was taken for a winding device that outputs an operation signal so that the winding tension at the start of winding becomes the above initial value.

すなわち、第１の発明では、上記制御手段は、巻取開始から巻取終了までにかかる全時間の少なくとも７０パーセントを経過した後に、巻取中の巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が直線状に又は湾曲状に緩やかに上昇しながらウェブを巻き取るよう作動信号を出力するとともに、巻取中の巻取軸から未巻取の巻取軸に上記ウェブを移行させる過程において、巻取中の巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が上記初期値と同じになるように又は接近するように作動信号を出力することを特徴とする。 That is, in the first invention, the control means applies the drive motor that rotates the winding shaft during winding to the web after at least 70% of the total time taken from the start of winding to the end of winding has elapsed. An operation signal is output so that the web is wound while the applied winding tension is gradually increased linearly or curvedly, and the web is transferred from the winding shaft during winding to the unwinding winding shaft. in the process, characterized in that the winding tension on the drive motor that rotates the winding shaft in the winding applied to the web to output an actuation signal to or close be the same as the upper Symbol initial value.

第２の発明では、第１の発明において、上記未巻取の巻取軸外周面に水を付着させる水付着手段と、上記未巻取の巻取軸外周面に搬送中のウェブを押し付ける押付手段とを備え、上記制御手段は、上記水付着手段及び押付手段に接続され、巻取中の巻取軸から未巻取の巻取軸に上記ウェブを移行させる過程において、上記未巻取の巻取軸外周面に水が付着するように水付着手段に作動信号を出力し、且つ、上記未巻取の巻取軸外周面に搬送中のウェブを押し付けるように上記押付手段に作動信号を出力し、上記未巻取の巻取軸外周面に押し付けられた搬送中のウェブを切断するように上記切断手段に作動信号を出力することを特徴とする。 In the second aspect of the invention, pressing in the first invention, a water attachment means for attaching the water take-up shaft outer circumferential surface of the intake upper Symbol Not winding, the web being conveyed to the winding shaft outer peripheral surface of the winding the non-wound A pressing means, and the control means is connected to the water adhering means and the pressing means, and in the process of transferring the web from the winding shaft being wound to the unwinding winding shaft, An operation signal is output to the water adhering means so that water adheres to the outer peripheral surface of the take-up shaft, and an operation signal is sent to the pressing means so as to press the web being conveyed against the outer peripheral surface of the unwinding take-up shaft. And an operation signal is output to the cutting means so as to cut the web being conveyed pressed against the outer surface of the unwinded winding shaft.

第１の発明では、巻取中の巻取軸において、巻取終了直前だけウェブの巻取張力を上昇させるので、巻取張力の変動が巻取中のウェブに大きな影響を及ぼさず、シワ等の巻取不良が発生しない。また、巻取軸間をウェブが移行する際、巻取中の巻取軸におけるウェブに加わる巻取張力が予め設定された初期値かそれに近い値に接近するまで上昇するので、巻取軸間のウェブの移行時においてガイドローラの撓み量の変化が小さくなってウェブの搬送経路が変化せず、ウェブの搬送経路が大きく変化することによって引き起こされる巻取不良を防止できる。   In the first invention, the winding tension of the web is increased only immediately before the winding is completed on the winding shaft that is being wound. Therefore, fluctuations in the winding tension do not significantly affect the web that is being wound. No winding failure occurs. Also, when the web moves between the winding shafts, the winding tension applied to the web on the winding shaft that is being wound increases until it approaches a preset initial value or a value close thereto, so that the space between the winding shafts When the web is moved, the change in the deflection amount of the guide roller is small, the web conveyance path is not changed, and the winding failure caused by the web conveyance path is largely changed can be prevented.

また、巻取中の巻取軸において、ウェブに加わる巻取張力が巻取終了直前に上昇しても巻取中のウェブに影響が出ない範囲で巻取張力が上昇するので、巻取中の巻取軸において確実に巻取不良の発生を防止することができる。 In addition , even if the winding tension applied to the web rises just before the end of winding at the winding shaft during winding, the winding tension rises within a range that does not affect the winding web. It is possible to reliably prevent the occurrence of winding failure in the winding shaft.

第２の発明では、巻取軸間をウェブが移行する際、予め押付手段で未巻取の巻取軸にウェブを押し付けた状態で切断手段でウェブを切断するので、切断時の衝撃により巻取軸に対してウェブが横滑りしなくなり、巻取初期の巻取位置のズレを防止できる。また、未巻取の巻取軸にウェブを押し付けた際に、巻取軸外周面に付着した水によって巻取軸外周面とウェブとの間の摩擦抵抗が減るので、ウェブが巻取軸に巻き取られ始める際に巻取軸に対して滑り易くなる。したがって、第１の発明のように、巻取軸間でウェブを移行させる際に、ウェブの巻取張力を高くした状態で切断すると、巻取張力が開放された反動でウェブがウェブ幅方向に大きく伸縮を繰り返しながら巻き取られ始めるが、ウェブがウェブ幅方向に大きく伸縮を繰り返しても巻取軸の外周面に付着した水によってウェブが巻取軸外周面に対して滑ってウェブ幅方向に縮んだまま巻き取られなくなるので、巻取開始時の巻取不良の発生を確実に防止することができる。 In the second invention, when the web moves between the winding shafts, the web is cut by the cutting means while the web is pressed against the unwinding winding shaft by the pressing means in advance. The web does not slide sideways with respect to the take-up shaft, and deviation of the take-up position at the initial stage of take-up can be prevented. In addition, when the web is pressed against the unwinding winding shaft, the frictional resistance between the winding shaft outer peripheral surface and the web is reduced by water adhering to the winding shaft outer peripheral surface. It becomes easy to slip with respect to the winding shaft when starting to be wound. Therefore, when the web is moved between the winding shafts as in the first aspect of the invention, if the web is cut in a state where the winding tension of the web is increased, the web is moved in the web width direction by the reaction of releasing the winding tension. The web starts to be wound while repeating large expansion and contraction. Since the coil cannot be wound while it is contracted, it is possible to reliably prevent the occurrence of winding failure at the start of winding.

本発明の実施形態に係る巻取装置の概略正面図である。1 is a schematic front view of a winding device according to an embodiment of the present invention. ウェブを巻取中の巻取軸から未巻取の巻取軸へ移行する直前の状態を示す概略正面図である。It is a schematic front view which shows the state just before transfering from the winding axis | shaft which is winding a web to the winding axis | shaft which is not winding. ウェブを巻取中の巻取軸から未巻取の巻取軸へ移行した直後の状態を示す概略正面図である。It is a schematic front view which shows the state immediately after transfering from the winding axis | shaft which is winding a web to the unwinding winding axis | shaft. 巻き取り始めた巻取軸の位置を変更している状態を示す概略正面図である。It is a schematic front view which shows the state which has changed the position of the winding axis | shaft which started winding. 巻取装置の稼働時における経過時間と巻取張力との関係を示した図である。It is the figure which showed the relationship between the elapsed time at the time of operation | movement of a winding apparatus, and winding tension. 本発明の巻取張力の制御方法で、且つ、巻取軸外周面に粘着テープを貼り付けて巻き取り始める方法でウェブを移行させた際の巻取装置の経過時間とウェブの蛇行量との関係を示した図である。In the winding tension control method of the present invention, and the method of starting the winding by sticking an adhesive tape to the outer circumferential surface of the winding shaft, the elapsed time of the winding device and the amount of meandering of the web It is the figure which showed the relationship. 本発明の巻取張力の制御方法で、且つ、巻取軸外周面に水を付着させて巻き取り始める方法でウェブを移行させた際の巻取装置の経過時間とウェブの蛇行量との関係を示した図である。The relationship between the elapsed time of the winding device and the amount of meandering of the web when the web is transferred by the winding tension control method of the present invention and the method of starting winding by attaching water to the outer peripheral surface of the winding shaft FIG. 図１のＡ−Ａ線における概略断面図であり、（ａ）は、従来の巻取装置で巻き取ったウェブの巻取状態を、（ｂ）は、本発明の巻取張力の制御方法で、且つ、巻取軸外周面に粘着テープを貼り付けて巻き取り始める方法で巻き取ったウェブの巻取状態を、（ｃ）は、本発明の巻取張力の制御方法で、且つ、巻取軸外周面に水を付着させて巻き取り始める方法で巻き取ったウェブの巻取状態を示す。It is a schematic sectional drawing in the AA line of FIG. 1, (a) is the winding state of the web wound by the conventional winding apparatus, (b) is the winding tension | tensile_strength control method of this invention. And (c) is a winding tension control method according to the present invention, and the winding state of the web wound by the method of starting to wind by sticking an adhesive tape to the outer peripheral surface of the winding shaft. The winding state of the web wound up by the method which starts watering by making water adhere to the outer peripheral surface of a shaft is shown.

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎない。尚、図１乃至図４は、本発明の巻取装置１の各構成が見え易くなるように描いている。また、図８では便宜上、ウェブＷの厚みを誇張して記載している。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature. 1 to 4 are drawn so that each configuration of the winding device 1 of the present invention can be easily seen. In FIG. 8, the thickness of the web W is exaggerated for convenience.

図１乃至図４は、本発明の実施形態に係る巻取装置１を示す。該巻取装置１は、所謂ターレット式巻取装置と呼ばれるものであり、図示しない印刷機で印刷が施された薄くて柔らかい長尺状のプラスチックフィルムからなるウェブＷをロール状に巻き取るものである。   1 to 4 show a winding device 1 according to an embodiment of the present invention. The winding device 1 is a so-called turret type winding device, and winds a web W made of a thin and soft long plastic film printed by a printing machine (not shown) into a roll shape. is there.

上記巻取装置１は、回転方向に等間隔に位置する４つのアーム部２１ａ〜２１ｄを有する略十字形状の回転体２を備え、該回転体２は、水平方向に所定の間隔をあけて対向するように一対設けられている。   The winding device 1 includes a substantially cross-shaped rotating body 2 having four arm portions 21a to 21d positioned at equal intervals in the rotational direction, and the rotating body 2 is opposed to the horizontal direction with a predetermined interval. A pair is provided.

一方の回転体２中央には、第１駆動モータ３が駆動連結され、上記両回転体２は、上記第１駆動モータ３の回転駆動により、正面視で時計回りに回転するようになっている。   A first drive motor 3 is drivingly connected to the center of one rotary body 2, and both the rotary bodies 2 are rotated clockwise in front view by the rotational drive of the first drive motor 3. .

上記各アーム部２１ａの先端間及び上記各アーム部２１ｃの先端間には、それぞれ巻取軸２２が回転可能に軸支され、上記各アーム部２１ｂの先端間及び上記各アーム部２１ｄの先端間には、それぞれガイドローラＧ１が回転可能に軸支されている。   A winding shaft 22 is rotatably supported between the tip ends of the arm portions 21a and between the tip ends of the arm portions 21c, and between the tip ends of the arm portions 21b and the tip ends of the arm portions 21d. Each of them is rotatably supported by a guide roller G1.

上記各巻取軸２２には、それぞれ第２駆動モータ４が駆動連結され、該各第２駆動モータ４の回転駆動により、上記各巻取軸２２は、正面視で時計回りに回転するようになっている。   A second drive motor 4 is drivingly connected to each take-up shaft 22, and each take-up shaft 22 is rotated clockwise in front view by the rotational drive of each second drive motor 4. Yes.

上記第１駆動モータ３の一側方下部（図１の紙面右側下部）には、上記回転体２から離れるにつれて上方に位置するように傾斜して延びる略Ｌ字状の装置固定側Ｆが位置し、該装置固定側Ｆの回転体２側には、上記ウェブＷを案内可能なガイドローラＧ２が回転可能に軸支されている。   A substantially L-shaped device fixing side F extending obliquely so as to be located upward as it moves away from the rotating body 2 is located at one side lower portion (lower right portion of the drawing in FIG. 1) of the first drive motor 3. A guide roller G2 capable of guiding the web W is rotatably supported on the rotating body 2 side of the apparatus fixing side F.

また、上記第１駆動モータ３の一側方には、上記ガイドローラＧ２から離間した位置に上記ウェブＷを案内可能なガイドローラＧ３が設けられ、上記ウェブＷは、上記ガイドローラＧ３及びガイドローラＧ２に順に案内されながら上記第１駆動モータ３の一側方に位置する巻取軸２２の下方を搬送され、下側に位置するガイドローラＧ１によって略Ｖ字状に折り返されるとともに、上記第１駆動モータ３の他側方に位置する巻取軸２２に向かって搬送されて当該巻取軸２２に巻き取られるようになっている。   A guide roller G3 capable of guiding the web W is provided on one side of the first drive motor 3 at a position spaced from the guide roller G2, and the web W includes the guide roller G3 and the guide roller. While being guided in order by G2, the sheet is conveyed below the winding shaft 22 located on one side of the first drive motor 3, and is folded back into a substantially V shape by a guide roller G1 located on the lower side. It is conveyed toward the winding shaft 22 located on the other side of the drive motor 3 and is wound on the winding shaft 22.

上記装置固定側Ｆの上記ガイドローラＧ２近傍には、上記ウェブＷを切断する切断装置５（切断手段）が配設されている。   In the vicinity of the guide roller G2 on the apparatus fixing side F, a cutting device 5 (cutting means) for cutting the web W is disposed.

該切断装置５は、上端が上記装置固定側Ｆに回動可能に軸支された切断フレーム５ａを備え、該切断フレーム５ａは、水平方向に所定の間隔をあけて対向するように一対設けられている。   The cutting device 5 includes a cutting frame 5a whose upper end is pivotally supported on the device fixing side F, and a pair of the cutting frames 5a are provided so as to face each other at a predetermined interval in the horizontal direction. ing.

上記両切断フレーム５ａの下端間には、刃部５ｂが設けられ、図２に示すように、上記両切断フレーム５ａが上方に回動することにより、上記刃部５ｂで搬送中のウェブＷを幅方向に切断するようになっている。   A blade portion 5b is provided between the lower ends of both the cutting frames 5a. As shown in FIG. 2, the cutting frames 5a rotate upward to move the web W being conveyed by the blade portions 5b. It is designed to cut in the width direction.

上記装置固定側Ｆの反回転体２側には、一端が上記装置固定側Ｆに回動可能に軸支された回動フレーム６が水平方向に所定の間隔をあけて一対設けられ、上記両回動フレーム６は、上記回転体２に近づくにつれて下方に位置するように傾斜して延びている。   A pair of rotating frames 6 having one end pivotally supported by the apparatus fixing side F so as to be rotatable to the apparatus fixing side F are provided on the counter rotating body 2 side of the apparatus fixing side F. The rotating frame 6 extends so as to be positioned downward as it approaches the rotating body 2.

上記両回動フレーム６の他端間には、押付ローラ７が正面視で反時計回りに回転可能に軸支され、該押付ローラ７と上記回動フレーム６とで押付機構（押付手段）８を構成している。   A pressing roller 7 is pivotally supported between the other ends of the both rotating frames 6 so as to be able to rotate counterclockwise when viewed from the front, and a pressing mechanism (pressing means) 8 is formed by the pressing roller 7 and the rotating frame 6. Is configured.

上記押付ローラ７は、上記両回動フレーム６が上方に回動することにより、搬送中のウェブＷを上記第１駆動モータ３の一側方に位置する巻取軸２２に押し付けるようになっている。   The pressing roller 7 presses the web W being conveyed against the winding shaft 22 located on one side of the first drive motor 3 by rotating both the rotating frames 6 upward. Yes.

上記第１駆動モータ３の一側方に位置する巻取軸２２上方には、噴霧状の水を下方に吹き出して上記巻取軸２２外周面に水を付着させる水付着装置（水付着手段）９が配設されている。   Above the winding shaft 22 located on one side of the first drive motor 3, a water adhering device (water adhering means) that sprays sprayed water downward to deposit water on the outer peripheral surface of the winding shaft 22. 9 is disposed.

上記第１駆動モータ３、各第２駆動モータ４、上記切断装置５、上記押付機構８及び上記水付着装置９には、当該第１駆動モータ３、各第２駆動モータ４、上記切断装置５、上記押付機構８及び上記水付着装置９に作動信号を出力する制御装置（制御手段）１０が接続されている。   The first drive motor 3, each second drive motor 4, the cutting device 5, the pressing mechanism 8, and the water adhesion device 9 include the first drive motor 3, each second drive motor 4, and the cutting device 5. A control device (control means) 10 for outputting an operation signal to the pressing mechanism 8 and the water adhesion device 9 is connected.

該制御装置１０は、上記ウェブＷを上記第１駆動モータ３の他側方に位置する巻取軸２２で巻き取る際、当該巻取軸２２を回転させる第２駆動モータ４に、図５に示すように、上記ウェブＷに加わる巻取張力Ｔが予め設定された初期値Ｔ０から緩やかに低下するように作動信号を出力するようになっている。   When the web W is taken up by the take-up shaft 22 located on the other side of the first drive motor 3, the control device 10 causes the second drive motor 4 that rotates the take-up shaft 22 to rotate as shown in FIG. As shown, an operation signal is output so that the winding tension T applied to the web W gradually decreases from a preset initial value T0.

また、上記制御装置１０は、上記巻取軸２２の巻取開始から巻取終了までにかかる全時間の７０パーセント（図５の矢印Ｘのタイミング）を経過したときに、上記巻取中の巻取軸２２を回転させる第２駆動モータ４に上記ウェブＷに加わる巻取張力Ｔが湾曲状に（又は直線状に）緩やかに上昇しながらウェブＷを巻き取るように作動信号を出力するようになっている。 Further, the control device 10 determines that the winding during winding is performed when 70 percent of the total time taken from the start of winding of the winding shaft 22 to the end of winding (the timing of the arrow X in FIG. 5) has elapsed. An operation signal is output so as to wind up the web W while the winding tension T applied to the web W is gradually increased in a curved shape (or linear shape) to the second drive motor 4 that rotates the take-up shaft 22. It has become.

さらに、上記制御装置１０は、巻取中の巻取軸２２から未巻取の巻取軸２２に上記ウェブＷを移行させる過程において、巻取中の巻取軸２２を回転させる第２駆動モータ４に上記ウェブＷに加わる巻取張力Ｔが緩やかに上昇して上記初期値Ｔ０と同じになるように作動信号を出力するようになっている。   Further, the control device 10 includes a second drive motor that rotates the winding shaft 22 that is being wound in the process of transferring the web W from the winding shaft 22 that is being wound to the winding shaft 22 that is not being wound. 4, the operation signal is output so that the winding tension T applied to the web W gradually increases and becomes equal to the initial value T0.

尚、上記制御装置１０は、例えば、特開２０１２−４６２６１号公報に開示されている巻取張力の最適化モデルを用いて上記ウェブＷに加える上記巻取張力Ｔの値を制御している。   In addition, the said control apparatus 10 is controlling the value of the said winding tension T added to the said web W using the optimization model of winding tension currently disclosed by Unexamined-Japanese-Patent No. 2012-46261, for example.

また、上記制御装置１０は、上記巻取中の巻取軸２２がウェブＷをロール状に所定量巻き取って巻取終了間近になると、図２に示すように、上記第１駆動モータ３の一側方に位置する未巻取の巻取軸２２を回転させる第２駆動モータ４に当該未巻取の巻取軸２２を回転させるように作動信号を出力するとともに、上記水付着装置９から噴霧状の水を吹き出して上記未巻取の巻取軸２２外周面に水が付着するように水付着装置９に作動信号を出力し、且つ、上記回動フレーム６を回動させて上記押付ローラ７で搬送中のウェブＷを未巻取の巻取軸２２外周面に押し付けるように上記押付機構８に作動信号を出力するようになっている。   When the winding shaft 22 during winding winds up the web W in a roll shape and approaches the end of winding as shown in FIG. An operation signal is output to the second drive motor 4 for rotating the unwinding winding shaft 22 located on one side so as to rotate the unwinding winding shaft 22, and from the water adhering device 9. An operation signal is output to the water adhering device 9 so that the sprayed water is blown out and water adheres to the outer peripheral surface of the unwound take-up shaft 22, and the rotating frame 6 is rotated to perform the pressing. An operation signal is output to the pressing mechanism 8 so that the web W being conveyed by the roller 7 is pressed against the outer peripheral surface of the winding shaft 22 that has not been wound.

さらに、上記制御装置１０は、上記押付ローラ７で搬送中のウェブＷを未巻取の巻取軸２２外周面に押し付けた状態で、上記未巻取の巻取軸２２と巻取中の巻取軸２２との間のウェブ搬送方向上流側で上記切断フレーム５ａを回動させて上記刃部５ｂにより上記ウェブＷを切断するように上記切断装置５に作動信号を出力するとともに、上記未巻取の巻取軸２２を回転させる第２駆動モータ４に上記ウェブＷの巻取開始時の巻取張力Ｔが上記初期値Ｔ０となるように作動信号を出力するようになっている。   Further, the control device 10 presses the web W being conveyed by the pressing roller 7 against the outer circumferential surface of the unwinding winding shaft 22 and the winding shaft 22 being wound and the winding shaft being wound. An operation signal is output to the cutting device 5 so that the cutting frame 5a is rotated on the upstream side in the web conveying direction with the take-up shaft 22 and the web W is cut by the blade portion 5b. An operation signal is output to the second drive motor 4 that rotates the take-up take-up shaft 22 so that the take-up tension T at the start of the take-up of the web W becomes the initial value T0.

そして、巻き取りを終了して上記第１駆動モータ３の他側方に位置する巻取軸２２を回転体２から取り外した後、上記制御装置１０は、上記回転体２を回転させる上記第１駆動モータ３に、当該第１駆動モータ３の一側方に位置してウェブＷを巻き取る巻取軸２２を上記第１駆動モータ３の他側方まで移動させるように作動信号を出力するようになっている。   Then, after the winding is finished and the winding shaft 22 located on the other side of the first drive motor 3 is removed from the rotating body 2, the control device 10 rotates the rotating body 2. An operation signal is output to the drive motor 3 so as to move the winding shaft 22 that is positioned on one side of the first drive motor 3 and winds the web W to the other side of the first drive motor 3. It has become.

次に、上記巻取装置１におけるウェブＷの巻取動作について説明する。   Next, the winding operation of the web W in the winding device 1 will be described.

まず、図１に示すように、第１駆動モータ３の他側方に位置する巻取軸２２を回転させてウェブＷに加わる巻取張力Ｔが予め設定された初期値Ｔ０から緩やかに低下するように当該巻取軸２２でウェブＷを巻き取る。   First, as shown in FIG. 1, the winding tension T applied to the web W by rotating the winding shaft 22 located on the other side of the first drive motor 3 gradually decreases from the preset initial value T0. Thus, the web W is wound up by the winding shaft 22.

次に、第１駆動モータ３の他側方に位置する巻取軸２２の巻取開始から巻取終了までにかかる全時間の７０パーセントを経過したときに、上記ウェブＷに加わる巻取張力Ｔを湾曲状に（又は直線状に）緩やかに上昇させる。 Next, the winding tension T applied to the web W when 70% of the total time taken from the start of winding of the winding shaft 22 located on the other side of the first drive motor 3 to the end of winding has elapsed. Is gently raised (or linearly) .

また、巻取中の巻取軸２２から未巻取の巻取軸２２に上記ウェブＷを移行させる過程において、上記ウェブＷに加わる巻取張力Ｔを緩やかに上昇させて上記初期値Ｔ０と同じにする。   Further, in the process of transferring the web W from the winding shaft 22 being wound to the unwinding winding shaft 22, the winding tension T applied to the web W is gradually increased to be equal to the initial value T0. To.

そして、第１駆動モータ３の一側方に位置する未巻取の巻取軸２２を回転させるとともに、当該巻取軸２２外周面に水付着装置９で水を付着させる。   Then, the unwinding winding shaft 22 located on one side of the first drive motor 3 is rotated, and water is attached to the outer peripheral surface of the winding shaft 22 by the water adhering device 9.

その後、回転する未巻取の巻取軸２２の外周面に押付ローラ７で搬送中のウェブＷを押し付けるとともに、ウェブＷを未巻取の巻取軸２２外周面に押し付けた状態で、上記未巻取の巻取軸２２と巻取中の巻取軸２２との間のウェブ搬送方向上流側で切断装置５でウェブＷを切断し、ウェブＷの巻取開始時の巻取張力Ｔが上記初期値Ｔ０となるようにする。   Thereafter, the web W being conveyed is pressed against the outer circumferential surface of the rotating unwinding winding shaft 22 by the pressing roller 7 and the web W is pressed against the outer circumferential surface of the unwinding winding shaft 22. The web W is cut by the cutting device 5 on the upstream side in the web conveyance direction between the take-up take-up shaft 22 and the take-up take-up shaft 22, and the take-up tension T at the start of the take-up of the web W is as described above. The initial value T0 is set.

しかる後、上記第１駆動モータ３の他側方に位置する巻き取りを終了した巻取軸２２を回転体２から取り外した後、回転体２を１８０度回転させて上記第１駆動モータ３の一側方に位置してウェブＷを巻き取り始めた巻取軸２２を上記第１駆動モータ３の他側方まで移動させる。   After that, after the winding shaft 22 that has finished winding on the other side of the first drive motor 3 is removed from the rotating body 2, the rotating body 2 is rotated 180 degrees, and the first driving motor 3 is rotated. The winding shaft 22 located on one side and starting to wind the web W is moved to the other side of the first drive motor 3.

このように、上述の動作を繰り返すことにより、巻取装置１を停止させることなく各巻取軸２２でのウェブＷの巻取作業を行えるようになっている。   In this way, by repeating the above-described operation, the web W can be wound on each winding shaft 22 without stopping the winding device 1.

次に、本発明の巻取装置１を用いて実験した結果について説明する。   Next, the results of experiments using the winding device 1 of the present invention will be described.

図６は、横軸を経過時間、縦軸をウェブＷの蛇行量としたグラフであり、未巻取の巻取軸２２外周面に粘着テープを貼り付けて巻き取り始める方法で上記ウェブＷを巻取中の巻取軸２２から未巻取の巻取軸２２に移行させた際のデータである。尚、未巻取の巻取軸２２にウェブＷを押付ローラ７で押し付けるのは、切断装置５によるウェブＷの切断直後としている。   FIG. 6 is a graph in which the horizontal axis represents the elapsed time and the vertical axis represents the meandering amount of the web W, and the web W is wound by a method in which an adhesive tape is attached to the outer peripheral surface of the unwinded winding shaft 22 and winding is started. This is data when the winding shaft 22 during winding is shifted to the winding shaft 22 that has not been wound. The web W is pressed against the unwound winding shaft 22 by the pressing roller 7 immediately after the cutting of the web W by the cutting device 5.

Ｄ１は、切断装置５によるウェブＷの切断直前における巻取中の巻取軸２２で巻き取るウェブＷの巻取張力Ｔを４０Ｎ／ｍとする一方、切断直後における未巻取の巻取軸２２で巻き取る巻取張力Ｔを２２０Ｎ／ｍとした結果を、Ｄ２は、切断装置５によるウェブＷの切断の前後に関わらず、巻取中の巻取軸２２及び未巻取の巻取軸２２の巻取張力Ｔを２２０Ｎ／ｍで一定にした結果を示す。   D1 sets the winding tension T of the web W to be wound around the winding shaft 22 being wound immediately before cutting the web W by the cutting device 5 to 40 N / m, while the unwinding winding shaft 22 immediately after cutting. D2 is the result of setting the winding tension T to be wound at 220 N / m, regardless of whether the web W is cut by the cutting device 5 or not. The result of making the winding tension T of No. 2 constant at 220 N / m is shown.

Ｄ１の結果から分かるように、切断前後で巻取張力Ｔが大きく変動すると、図８（ａ）にも示すように、ウェブＷを切断した直後に大きく蛇行した後、巻取位置がずれたまま巻き取られる。   As can be seen from the result of D1, when the winding tension T greatly fluctuates before and after cutting, as shown in FIG. 8 (a), the winding position remains shifted after the web W is greatly meandered immediately after cutting. It is wound up.

しかし、Ｄ２の結果から分かるように、切断前後で巻取張力Ｔを一定とすると、図８（ｂ）にも示すように、ウェブＷを切断した直後に大きく蛇行するが、切断前後で巻取張力Ｔを大きく変動させる場合に比べて、すぐに大きな蛇行が収まるとともに巻取位置が元の位置に戻っている。   However, as can be seen from the result of D2, when the winding tension T is constant before and after cutting, as shown in FIG. 8 (b), the web W is greatly meandered immediately after cutting. Compared with a case where the tension T is greatly changed, a large meandering is immediately settled and the winding position returns to the original position.

これは、ウェブＷの切断直前に巻取張力Ｔが低い値であると、ガイドローラＧ３とウェブＷとの摩擦抵抗が低くなってしまい、切断時の衝撃でガイドローラＧ３に対してウェブＷが横滑りを起こしてしまうからだと考えられる。また、ウェブＷの巻取張力Ｔが低い値から高い値へと変化したときに、ガイドローラＧ３を撓み量が大きく変化してウェブＷの搬送経路が変化してしまったからだと考えられる。   This is because if the winding tension T has a low value immediately before the cutting of the web W, the frictional resistance between the guide roller G3 and the web W becomes low, and the web W is against the guide roller G3 by the impact at the time of cutting. This is thought to be due to skidding. Further, it is considered that when the winding tension T of the web W is changed from a low value to a high value, the amount of flexure of the guide roller G3 is greatly changed and the conveyance path of the web W is changed.

図７は、図６と同様に、横軸を経過時間、縦軸をウェブＷの蛇行量としたグラフであり、Ｄ３は、切断装置５によるウェブＷの切断の前後に関わらず、巻取中の巻取軸２２及び未巻取の巻取軸２２の巻取張力Ｔを２２０Ｎ／ｍで一定とし、且つ、水を付着させた状態の未巻取の巻取軸２２外周面に押付ローラ７でウェブＷを押し付けて巻き取り始めた結果を示す。   FIG. 7 is a graph in which the horizontal axis is the elapsed time and the vertical axis is the meandering amount of the web W, as in FIG. 6, and D3 is being wound regardless of before and after the cutting of the web W by the cutting device 5. The winding tension T of the winding shaft 22 and the unwinding winding shaft 22 is constant at 220 N / m, and the pressing roller 7 is applied to the outer peripheral surface of the unwinding winding shaft 22 in a state where water is attached. The result of pressing the web W and starting winding is shown.

Ｄ３の結果から分かるように、切断前後で巻取張力Ｔを一定とするとともに、外周面に水を付着させた状態の未巻取の巻取軸２２で巻き取り始めると、ウェブＷの切断直後の大きな蛇行を防ぐことができ、図８（ｃ）に示すように、シワや巻き取り位置のズレといった巻取不良が発生しない。   As can be seen from the result of D3, when the winding tension T is constant before and after cutting, and when winding is started with the unwinding winding shaft 22 with water attached to the outer peripheral surface, immediately after the web W is cut As shown in FIG. 8C, winding defects such as wrinkles and displacement of the winding position do not occur.

これは、押付ローラ７でウェブＷを巻取軸２２外周面に押し付けているので、ウェブＷが巻取軸２２に対して横滑りしないのと、切断時に巻取張力Ｔが開放された反動でウェブＷがウェブ幅方向に伸縮を繰り返しても、水によってウェブＷが巻取軸２２外周面に対して滑ってウェブ幅方向に縮んだまま巻き取られなくなるからだと考えられる。   This is because the web W is pressed against the outer peripheral surface of the take-up shaft 22 by the pressing roller 7, and the web W does not slide to the take-up shaft 22, and the web T Even if W repeatedly expands and contracts in the web width direction, it is considered that the web W slides with respect to the outer peripheral surface of the winding shaft 22 due to water and cannot be wound while being contracted in the web width direction.

尚、巻取軸２２にウェブＷを巻き取る際、ウェブＷに加わる巻取張力Ｔが予め設定された初期値Ｔ０から低下するように巻き取ると、ガイドローラＧ１〜Ｇ３の撓み量が変化し、各ガイドローラＧ１〜Ｇ３の回転軸の傾きや位置がそれぞれ変化してウェブＷの搬送経路が変化するので、巻取軸２２にロール状に巻き取られたウェブＷの幅方向端部が実際には、径方向外側に行くにつれて緩やかに湾曲するが、大きな湾曲ではなく巻取不良ではないので、図８では便宜上、直線で巻き取られるように記載している。   When winding the web W around the winding shaft 22, if the winding tension T applied to the web W is reduced so as to decrease from a preset initial value T0, the amount of deflection of the guide rollers G1 to G3 changes. Since the inclination and position of the rotation shaft of each of the guide rollers G1 to G3 change to change the conveyance path of the web W, the end in the width direction of the web W wound in a roll shape on the winding shaft 22 is actually In FIG. 8, although it curves gently as it goes to the outer side in the radial direction, it is not a large curve and it is not defective in winding. Therefore, in FIG.

以上より、本発明の実施形態によると、巻取中の巻取軸２２において、巻取終了直前だけウェブＷの巻取張力Ｔを上昇させるので、巻取張力Ｔの変動が巻取中のウェブＷに大きな影響を及ぼさず、シワ等の巻取不良が発生しない。   As described above, according to the embodiment of the present invention, the winding tension T of the web W is increased only at the winding shaft 22 during winding just before the winding is completed. W is not significantly affected, and winding defects such as wrinkles do not occur.

また、巻取軸２２間をウェブＷが移行する際、巻取中の巻取軸２２におけるウェブＷに加わる巻取張力Ｔが予め設定された初期値Ｔ０に接近するまで上昇するので、巻取軸２２間のウェブＷの移行時においてガイドローラＧ１〜Ｇ３の撓み量の変化が小さくなってウェブＷの搬送経路が変化せず、ウェブＷの搬送経路が大きく変化することによって引き起こされる巻取不良を防止できる。   Further, when the web W moves between the winding shafts 22, the winding tension T applied to the web W in the winding shaft 22 during winding increases until it approaches a preset initial value T 0. When the web W is moved between the shafts 22, the change in the amount of deflection of the guide rollers G <b> 1 to G <b> 3 is small, the web W transport path does not change, and the winding failure caused by the web W transport path changes greatly. Can be prevented.

また、巻取中の巻取軸２２において、ウェブＷに加わる巻取張力Ｔが巻取終了直前に上昇しても、巻取軸２２の巻取開始から巻取終了までにかかる全時間の７０パーセントを経過した後の巻取中のウェブＷに影響が出ない範囲で巻取張力Ｔが上昇するので、巻取中の巻取軸２２において確実に巻取不良の発生を防止することができる。   Further, even if the winding tension T applied to the web W is increased immediately before the winding is completed at the winding shaft 22 that is being wound, the entire time taken from the start of winding of the winding shaft 22 to the end of winding is 70. Since the winding tension T increases within a range that does not affect the web W being wound after the percentage has elapsed, it is possible to reliably prevent the occurrence of winding failure in the winding shaft 22 during winding. .

さらに、巻取軸２２間をウェブＷが移行する際、予め押付ローラ７で未巻取の巻取軸２２にウェブＷを押し付けた状態で切断装置５でウェブＷを切断するので、切断時の衝撃により巻取軸２２に対してウェブＷが横滑りしなくなり、巻取初期の巻取位置のズレを防止できる。   Further, when the web W moves between the winding shafts 22, the web W is cut by the cutting device 5 in a state where the web W is pressed against the unwinding winding shaft 22 by the pressing roller 7 in advance. The web W does not slide sideways with respect to the winding shaft 22 due to the impact, and displacement of the winding position at the initial stage of winding can be prevented.

それに加えて、未巻取の巻取軸２２にウェブＷを押し付けた際に、巻取軸２２外周面に付着した水によって巻取軸２２外周面とウェブＷとの間の摩擦抵抗が減るので、ウェブＷが巻取軸２２に巻き取られ始める際に巻取軸２２に対して滑り易くなる。したがって、第１の発明のように、巻取軸２２間でウェブＷを移行させる際に、ウェブＷの巻取張力Ｔを高くした状態で切断すると、巻取張力Ｔが開放された反動でウェブＷがウェブ幅方向に大きく伸縮を繰り返しながら巻き取られ始めるが、ウェブＷがウェブ幅方向に大きく伸縮を繰り返しても巻取軸２２の外周面に付着した水によってウェブＷが巻取軸２２外周面に対して滑ってウェブ幅方向に縮んだまま巻き取られなくなるので、巻取開始時の巻取不良の発生を確実に防止することができる。   In addition, when the web W is pressed against the unwinding winding shaft 22, the frictional resistance between the outer circumferential surface of the winding shaft 22 and the web W is reduced by water adhering to the outer circumferential surface of the winding shaft 22. When the web W starts to be wound around the winding shaft 22, the web W becomes slippery with respect to the winding shaft 22. Therefore, when the web W is transferred between the winding shafts 22 as in the first aspect of the invention, if the web W is cut with the winding tension T increased, the web is moved in a reaction with the winding tension T released. W starts to be wound up while repeatedly expanding and contracting in the web width direction, but even if the web W is repeatedly expanded and contracted in the web width direction, the web W is wound around the outer periphery of the winding shaft 22 by water adhering to the outer peripheral surface of the winding shaft 22. Since the sheet cannot be wound while sliding on the surface and contracted in the web width direction, it is possible to reliably prevent the occurrence of winding failure at the start of winding.

尚、本発明の実施形態では、巻取軸２２の巻取開始から巻取終了までにかかる全時間の７０パーセントを経過したときに、ウェブＷに加わる巻取張力Ｔを緩やかに上昇させるようにしているが、これに限らず、巻取開始から巻取終了までにかかる全時間の少なくとも７０パーセントを経過した後にウェブＷに加わる巻取張力Ｔを緩やかに上昇させるようにすればよい。   In the embodiment of the present invention, the winding tension T applied to the web W is gradually increased when 70% of the total time taken from the start of winding of the winding shaft 22 to the end of winding has elapsed. However, the present invention is not limited to this, and the winding tension T applied to the web W may be gradually increased after at least 70 percent of the total time from the start of winding to the end of winding has elapsed.

また、本発明の実施形態では、巻取装置１が２つの巻取軸２２を備えているが、複数の巻取軸２２を備えたものであってもよい。   In the embodiment of the present invention, the winding device 1 includes the two winding shafts 22, but the winding device 1 may include a plurality of winding shafts 22.

さらに、本発明の実施形態では、巻取中の巻取軸２２から未巻取の巻取軸２２にウェブＷを移行させる過程において、ウェブＷに加わる巻取張力Ｔを緩やかに上昇させて初期値Ｔ０と同じとなるようにしているが、上記巻取張力Ｔを完全に初期値Ｔ０に一致させる必要はなく、初期値Ｔ０の８０〜１２０パーセントの間の値となるようにすればよい。   Furthermore, in the embodiment of the present invention, in the process of transferring the web W from the winding shaft 22 during winding to the unwinding winding shaft 22, the winding tension T applied to the web W is gradually increased to be initial. Although it is set to be the same as the value T0, it is not necessary to make the winding tension T completely coincide with the initial value T0, and it may be a value between 80 and 120 percent of the initial value T0.

尚、本発明の実施形態では、巻取装置１を印刷機で印刷が施されたウェブＷを巻き取るのに使用しているが、塗工装置で塗工が施されたウェブを巻き取るのにも使用してもよく、ウェブ状のものを巻き取るのであればその他の設備でも使用できる。   In the embodiment of the present invention, the winding device 1 is used to wind the web W that has been printed by the printing machine. However, the web that has been coated by the coating device is wound. It can also be used for other equipment as long as it takes up a web-like material.

本発明は、プラスチックフィルム等からなる長尺状のウェブを巻き取る巻取装置に適している。   The present invention is suitable for a winding device for winding a long web made of a plastic film or the like.

１ 巻取装置
４ 第２駆動モータ
５ 切断装置（切断手段）
８ 押付機構（押付手段）
９ 水付着装置（水付着手段）
１０ 制御装置（制御手段）
２２ 巻取軸
Ｔ 巻取張力
Ｔ０ 初期値
Ｗ ウェブ 1 Winding device 4 Second drive motor 5 Cutting device (cutting means)
8 Pressing mechanism (pressing means)
9 Water adhesion device (water adhesion means)
10 Control device (control means)
22 Winding shaft T Winding tension T0 Initial value W Web

Claims (2)

連続して搬送される長尺状のウェブを回転動作によりロール状に巻き取る複数の巻取軸と、
該各巻取軸にそれぞれ駆動連結された駆動モータと、
上記ウェブを切断する切断手段と、
上記駆動モータ及び切断手段に接続され、当該駆動モータ及び切断手段のそれぞれに作動信号を出力する制御手段とを備え、
該制御手段は、上記ウェブを上記各巻取軸のうちの１つに巻き取る際、当該巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が予め設定された初期値から低下するように作動信号を出力し、巻取終了間近には、次にウェブを巻き取る未巻取の巻取軸を回転させる駆動モータに当該未巻取の巻取軸を回転させるように作動信号を出力し、且つ、上記未巻取の巻取軸と巻取中の巻取軸との間のウェブ搬送方向上流側で上記ウェブを切断するように上記切断手段に作動信号を出力し、上記未巻取の巻取軸でウェブを巻き取り始める直前に、上記未巻取の巻取軸を回転させる駆動モータに上記ウェブの巻取開始時の巻取張力が上記初期値になるように作動信号を出力する巻取装置であって、
上記制御手段は、巻取開始から巻取終了までにかかる全時間の少なくとも７０パーセントを経過した後に、巻取中の巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が直線状に又は湾曲状に緩やかに上昇しながらウェブを巻き取るよう作動信号を出力するとともに、巻取中の巻取軸から未巻取の巻取軸に上記ウェブを移行させる過程において、巻取中の巻取軸を回転させる駆動モータに上記ウェブに加わる巻取張力が上記初期値と同じになるように又は接近するように作動信号を出力することを特徴とする巻取装置。 A plurality of winding shafts for winding a continuous long web that is rolled into a roll by rotation;
Drive motors drivingly connected to the respective winding shafts;
Cutting means for cutting the web;
A control means connected to the drive motor and the cutting means and outputting an operation signal to each of the drive motor and the cutting means,
When the web is wound around one of the winding shafts, the control means is configured so that a winding tension applied to the web to a drive motor that rotates the winding shaft is lowered from a preset initial value. it outputs an operation signal, the winding ends are close, then wind the webs outputs an operation signal to the winding shaft of the winding un-winding rotating the winding shaft of the winding the non-wound to a drive motor for rotating And an operation signal is output to the cutting means so as to cut the web on the upstream side in the web conveyance direction between the unwinded winding shaft and the winding shaft being wound. Immediately before starting to wind up the web with the take-up take-up shaft, an operation signal is sent to the drive motor for rotating the unwinded take-up shaft so that the take-up tension at the start of winding the web becomes the initial value. A winding device for outputting,
After at least 70% of the total time from the start of winding to the end of winding has elapsed , the control means linearly increases the winding tension applied to the web to the drive motor that rotates the winding shaft that is being wound. Alternatively, an operation signal is output so as to wind up the web while gradually rising in a curved shape, and in the process of transferring the web from the winding shaft being wound to the unwinding winding shaft, winding apparatus characterized by winding tension applied to the web drive motor for rotating the shaft to output an actuation signal to or close be the same as the upper Symbol initial value. 請求項１に記載の巻取装置において、
上記未巻取の巻取軸外周面に水を付着させる水付着手段と、
上記未巻取の巻取軸外周面に搬送中のウェブを押し付ける押付手段とを備え、
上記制御手段は、上記水付着手段及び押付手段に接続され、巻取中の巻取軸から未巻取の巻取軸に上記ウェブを移行させる過程において、上記未巻取の巻取軸外周面に水が付着するように水付着手段に作動信号を出力し、且つ、上記未巻取の巻取軸外周面に搬送中のウェブを押し付けるように上記押付手段に作動信号を出力し、上記未巻取の巻取軸外周面に押し付けられた搬送中のウェブを切断するように上記切断手段に作動信号を出力することを特徴とする巻取装置。 The winding device according to claim 1,
Water adhering means for adhering water to the outer surface of the unwound take-up shaft;
Pressing means for pressing the web being conveyed to the outer surface of the unwinded winding shaft,
The control means is connected to the water adhering means and the pressing means, and in the process of transferring the web from the winding shaft being wound to the unwinding winding shaft, the outer peripheral surface of the unwinding winding shaft An operation signal is output to the water adhering means so that water adheres to the water, and an operation signal is output to the pressing means so as to press the web being conveyed against the outer peripheral surface of the unwinded winding shaft. A winding device that outputs an operation signal to the cutting means so as to cut the web being conveyed pressed against the outer peripheral surface of the winding shaft of the winding.
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