JP5605926B2

JP5605926B2 - Film wrinkle removing device, film tension adjusting method, film wrinkle removing method, and film winding device

Info

Publication number: JP5605926B2
Application number: JP2013212533A
Authority: JP
Inventors: 裕司日下田; 憲一武藤
Original assignee: Nittoku Engineering Co Ltd
Current assignee: Nittoku Engineering Co Ltd
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-10-15
Anticipated expiration: 2029-09-16
Also published as: JP2014003345A

Description

本発明は、各種電子機器、電気機器、産業機器、自動車等に使用されるフィルムを用いたコンデンサや電池等を製造する際に使用可能なフィルムのしわ取り装置等に関する。更に詳しくは、特に、ハイブリッド自動車のモータ駆動用インバータ回路の平滑用、フィルタ用、スナバ用として最適な金属化フィルムコンデンサ等を製造する際に使用可能なフィルムのしわ取り装置、フィルムの張力調整方法及びフィルムのしわ取り方法並びにフィルムの巻取り装置に関するものである。 The present invention relates to a film wrinkle removing device that can be used when manufacturing capacitors, batteries, and the like using films used in various electronic devices, electrical devices, industrial devices, automobiles, and the like. More specifically, a film wrinkle removing device and a film tension adjusting method that can be used particularly when manufacturing an optimum metallized film capacitor for smoothing, filtering, and snubbing of an inverter circuit for driving a motor of a hybrid vehicle. The present invention also relates to a film wrinkling method and a film winding device.

近年、環境保護の観点から、あらゆる電気機器がインバータ回路で制御され、省エネルギー化、高効率化が進められている。中でも自動車業界においては、電気モータとエンジンで走行するハイブリッド車が市場導入される等、地球環境に優しく、省エネルギー化、高効率化に関する技術の開発が活発化している。このようなハイブリッド車に用いられる電気モータは使用電圧領域が数百ボルトと高いため、このような電気モータに関連して使用されるコンデンサとして、高耐電圧で低損失の電気特性を有する金属化フィルムコンデンサが注目されている。この種の金属化フィルムコンデンサは、樹脂からなる誘電体フィルム上に金属蒸着電極を形成した帯状の金属化フィルムを一対の金属蒸着電極が誘電体フィルムを介して対向するように巻回することによりコンデンサ素子を形成し、このコンデンサ素子の両端面に金属溶射によるメタリコンからなる取り出し電極を夫々形成することによって作られる。 In recent years, from the viewpoint of environmental protection, all electric devices are controlled by inverter circuits, and energy saving and high efficiency are being promoted. In particular, in the automobile industry, development of technologies relating to energy saving and high efficiency, which are friendly to the global environment, such as the introduction of hybrid vehicles that run on electric motors and engines, has been activated. Since the electric motor used in such a hybrid vehicle has a high operating voltage range of several hundred volts, it is a metallized capacitor having high withstand voltage and low loss as a capacitor used in connection with such an electric motor. Film capacitors are attracting attention. This type of metallized film capacitor is obtained by winding a band-shaped metallized film in which a metal vapor-deposited electrode is formed on a dielectric film made of resin so that a pair of metal vapor-deposited electrodes face each other with the dielectric film interposed therebetween. The capacitor elements are formed, and take-out electrodes made of metallicon by metal spraying are respectively formed on both end faces of the capacitor elements.

従来、このようなコンデンサ素子を製造する装置として、帯状の金属化フィルムが巻回されたボビン又はリールを装填可能な巻き出し軸を備えるものが知られている（例えば、特許文献１参照。）。この装置では、２組の金属化フィルムを夫々装填できるように巻き出し軸が２本設けられ、２本の巻き出し軸からそれぞれ繰り出された帯状の金属化フィルムを２枚１組として重ね合わせて巻回する巻取り部と、捲き出し軸と巻取り部の中間に設けられて金属化フィルムをそれぞれ搬送する複数の搬送ローラが設けられる。そして、この複数の搬送ローラは、金属化フィルムの搬送をガイドするガイドローラ、位置変動により巻き出し軸の回転速度を制御してフィルムに一定の張力を与えるダンサーローラ、及び巻取り部に巻回されたフィルムを外部から加圧する加圧ローラを含むものである。 2. Description of the Related Art Conventionally, as an apparatus for manufacturing such a capacitor element, an apparatus having an unwinding shaft on which a bobbin or a reel wound with a band-shaped metallized film can be loaded is known (for example, see Patent Document 1). . In this apparatus, two unwinding shafts are provided so that two sets of metallized films can be loaded, respectively, and two strips of metallized films respectively fed from the two unwinding shafts are overlapped as one set. A winding unit for winding, and a plurality of transport rollers that are respectively provided between the winding shaft and the winding unit and transport the metallized film are provided. The plurality of transport rollers include a guide roller that guides the transport of the metallized film, a dancer roller that controls the rotational speed of the unwinding shaft according to position fluctuation, and applies a constant tension to the film, and a winding roller that winds around the winding unit A pressure roller for pressing the formed film from the outside.

この従来のコンデンサ素子製造装置では、ダンサーローラにより回転速度が制御された２本の巻き出し軸から繰り出される帯状の金属化フィルムを複数の搬送ローラにより搬送して巻取り部に巻回させ、加圧ローラがその巻取り部に巻回されたフィルムを外部から加圧するようにしている。この加圧ローラの加圧により、薄い金属化フィルムを用いた場合でも、巻回されたフィルム間にエアが入り込むことを防止することができるので、その金属化フィルムにしわが入ることがなく、安定した性能のコンデンサ素子を製造することができるとしている。 In this conventional capacitor element manufacturing apparatus, a belt-like metallized film fed from two unwinding shafts whose rotational speed is controlled by a dancer roller is transported by a plurality of transport rollers and wound around a winding section, and then added. The pressure roller presses the film wound around the winding portion from the outside. Even when a thin metallized film is used by the pressure of this pressure roller, air can be prevented from entering between the wound films, so that the metallized film does not wrinkle and is stable. Capacitor elements with the performance described above can be manufactured.

特開２００９−９４１８８号公報JP 2009-94188 A

しかし、上記従来の装置では、巻き出し軸から繰り出される帯状のフィルムは複数の搬送ローラにより搬送されて巻取り部に巻回されるため、搬送方向における一定の張力がフィルムに生じるけれども、その搬送方向に直交するフィルムの幅方向には張力が生じないのでフィルムの幅方向に生じるしわを防止することはできなかった。このフィルムの幅方向に生じるしわは巻取り部に巻回した後に加圧ローラが巻回されたフィルムを外部から加圧することにより解消しているけれども、そのしわを解消するためには巻回されたフィルム間にエアが入り込むことを確実に防止する必要がある。このエアの入り込みは、フィルムを巻回する巻取り部の回転速度と関係しており、生産性向上のためにその回転速度を上昇させると、フィルムの幅方向におけるしわを解消する以前にフィルムが加圧ローラにより押しつぶされてそのフィルム間にエアが入り込む危険性が増大することになる。このため、巻取り部にフィルムを巻回する速度を上昇させるには限界があり、１８００ｒｐｍ程度がその限界と言われている。よって、従来の装置では、巻取り部の巻回速度を上昇させてその生産性を向上させるには一定の制限があった。 However, in the above-described conventional apparatus, the belt-shaped film fed out from the unwinding shaft is transported by a plurality of transport rollers and wound around the winding unit. Since no tension was generated in the width direction of the film perpendicular to the direction, wrinkles generated in the width direction of the film could not be prevented. The wrinkles generated in the width direction of the film are eliminated by applying pressure to the film on which the pressure roller has been wound from the outside after being wound around the winding portion. However, in order to eliminate the wrinkles, the wrinkles are wound. It is necessary to reliably prevent air from entering between the films. This intrusion of air is related to the rotational speed of the take-up part that winds the film. If the rotational speed is increased to improve productivity, the film will be removed before wrinkles in the width direction of the film are eliminated. There is an increased risk of air being crushed by the pressure roller and entering between the films. For this reason, there is a limit in increasing the speed at which the film is wound around the winding portion, and about 1800 rpm is said to be the limit. Therefore, in the conventional apparatus, there is a certain limitation in increasing the winding speed of the winding unit and improving the productivity.

本発明の目的は、フィルムの主に幅方向に生じるしわを解消しうるフィルムのしわ取り装置及び方法を提供することにある。 An object of the present invention is to provide a film wrinkle removing apparatus and method that can eliminate wrinkles that occur mainly in the width direction of the film.

本発明の別の目的は、フィルムに適度な張力を与えるとともにフィルムの主に幅方向に生じるしわを解消してフィルムの巻回速度を上昇し得るフィルムの張力調整方法及びフィルムの巻取り装置を提供することにある。 Another object of the present invention is to provide a film tension adjusting method and a film winding apparatus capable of increasing a film winding speed by giving a proper tension to the film and eliminating wrinkles generated mainly in the width direction of the film. It is to provide.

本発明のフィルムのしわ取り装置は、長手方向に移動する帯状フィルムが沿う又は帯状フィルムが掛け回される第１部材と、その第１部材とともにフィルムを挟む第２部材と、その第２部材に形成された空気孔と、空気孔からエアを帯状フィルムに吹き付けて帯状フィルムを第１部材に押しつけるエア吹き付け手段とを備える。そして、第１部材は断面が円形を成す回転不能の円柱状部材あるいは断面が半円状または扇状を成す移動不能の棒状部材からなり、第２部材は断面において半円状に湾曲した内面を有する覆い部を備えることを特徴とする。ここで、第１部材のフィルムに対向する面は粗面加工されていることが好ましい。 The film wrinkle removing device of the present invention includes a first member along which a belt-shaped film moving in the longitudinal direction is stretched, a second member sandwiching the film together with the first member, and the second member. The formed air holes and air blowing means for blowing air from the air holes to the belt-like film and pressing the belt-like film against the first member. The first member is a non-rotatable columnar member having a circular cross section or a non-movable rod-shaped member having a semicircular or fan-shaped cross section, and the second member has an inner surface curved in a semicircular shape in the cross section. It is provided with a cover part . Here, the surface of the first member facing the film is preferably roughened.

本発明のフィルムの張力調整方法は、上記フィルムのしわ取り装置を用いる。そして、第１部材に掛け回されて長手方向に移動する帯状フィルムに空気孔からエアを吹き付けて帯状フィルムを第１部材に押しつけ、第１部材に押しつけられて摺動するフィルムの摺動抵抗によりフィルムに張力を生じさせ、フィルムの張力をフィルムに吹き付けるエアの圧力により制御することを特徴とする。 Tension adjusting method of the film of the present invention uses a wrinkle device of the film. Then, air is blown from the air holes to the band-shaped film that is wound around the first member and moves in the longitudinal direction, thereby pressing the band-shaped film against the first member, and by the sliding resistance of the film that is pressed against and slides on the first member Tension is generated in the film, and the tension of the film is controlled by the pressure of air blown on the film.

本発明のフィルムのしわ取り方法は、上記フィルムのしわ取り装置を用いる。そして、第１部材に掛け回されて長手方向に移動する帯状フィルムに空気孔からエアを吹き付けて帯状フィルムを第１部材に押しつけ、フィルムに吹き付けられてフィルムの表面に流れるエアによりフィルムのしわを伸ばすことを特徴とする。 Wrinkle method of the film of the present invention uses a wrinkle device of the film. Then, air is blown from the air holes to the band-shaped film that is wound around the first member and moves in the longitudinal direction, the band-shaped film is pressed against the first member, and the film is wrinkled by the air that is blown to the film and flows to the surface of the film. It is characterized by stretching.

本発明のフィルムの巻取り装置は、ボビン又はリールに巻回されたフィルムを送り出す供給部と、供給部から送り出されるフィルムを巻回する巻取り部と、供給部と巻取り部の間のフィルム搬送経路に設けられた複数の搬送ローラと、巻取り部近傍に設けられた上記しわ取り装置を備える。 The film winding apparatus of the present invention includes a supply unit that sends out a film wound on a bobbin or a reel, a winding unit that winds the film sent from the supply unit, and a film between the supply unit and the winding unit. A plurality of conveying rollers provided in the conveying path and the wrinkle removing device provided in the vicinity of the winding unit are provided.

このフィルムの巻取り装置における供給部が一対設けられ、巻取り部は一対の供給部からそれぞれ供給されるフィルムを重ね合わせて巻回するように構成され、複数の搬送ローラが巻取り部に巻回されたフィルムから成るコンデンサ素子の周面に付勢状態で当接する加圧ローラを含むようなものである場合には、重ね合わされた２枚のフィルムを巻取り部に巻回される以前に加圧ローラとともに圧縮する補助ローラ又は加圧ローラと別に設けられて重ね合わされた２枚のフィルムを巻取り部に巻回される以前に圧縮する一対の重合ローラを備えることが好ましい。 A pair of supply units in the film winding apparatus is provided, and the winding unit is configured to overlap and wind the films respectively supplied from the pair of supply units, and a plurality of transport rollers wind around the winding unit. In the case of including a pressure roller that abuts against the peripheral surface of the capacitor element made of a rotated film in a biased state, before the two overlapped films are wound around the winding portion It is preferable to include a pair of superposition rollers that compresses the two films, which are provided separately from the auxiliary roller or the pressure roller, which are compressed together with the pressure roller, before being wound around the winding unit.

また、このフィルムの巻取り装置における複数の搬送ローラの全部又は一部は、外周から吹き出すエアにより掛け回されたフィルムを浮上可能に構成された筒部と、筒部の両側に設けられ筒部に掛け回されて浮上するフィルムの幅方向の移動を制限する壁部材とを備えることが好ましい。 Further, all or a part of the plurality of transport rollers in the film winding device includes a cylindrical portion configured to be able to float a film hung by air blown from the outer periphery, and a cylindrical portion provided on both sides of the cylindrical portion. It is preferable to provide a wall member that restricts movement in the width direction of the film that is wound around and floats.

本発明のフィルムのしわ取り装置では、第１部材に掛け回されて長手方向に移動する帯状フィルムにエアを吹き付けることにより帯状フィルムを第１部材に押しつけることができる。このため、そのフィルムは第１部材に押しつけられて摺動することになり、そのフィルムの摺動抵抗によりフィルムに張力を生じさせることができる。このフィルムの張力はフィルムに吹き付けるエアの圧力に比例するので、その張力をエアの吹き付け圧力により制御することが可能となる。 In the film wrinkle removing apparatus of the present invention, the belt-like film can be pressed against the first member by blowing air to the belt-like film that is wound around the first member and moves in the longitudinal direction. For this reason, the film is pressed against the first member to slide, and the film can be tensioned by the sliding resistance of the film. Since the tension of the film is proportional to the pressure of air sprayed on the film, the tension can be controlled by the pressure of air blowing.

また、帯状フィルムを第１部材に押しつけたエアは、第１部材とともにフィルムを挟む第２部材によりフィルムの表面を流れ、そのフィルムをその長手方向及び幅方向の両側に引っ張る。このため、その長手方向に移動する帯状フィルムに生じるしわを伸ばすことができる。 Moreover, the air which pressed the strip | belt-shaped film against the 1st member flows the surface of a film with the 2nd member which pinches | interposes a film with a 1st member, and pulls the film to the both sides of the longitudinal direction and the width direction. For this reason, it is possible to extend the wrinkles caused filmstrip to move in its longitudinal direction.

このようなしわ取り装置を備える本発明のフィルムの巻取り装置では、長手方向のみならず幅方向のしわが伸ばされた状態のフィルムを巻取り部に巻回することができるため、巻取り部の回転速度を上昇させたとしても、フィルム間にエアが入り込むことはない。即ち、フィルムの主に幅方向に生じるしわを解消することにより生産性向上のために巻取り部によるフィルムの巻回速度を上昇させることが可能になる。このため、本発明の巻取り装置により、安定した性能のコンデンサ素子の製造効率を従来よりも著しく向上させることができる。 In the film winding device of the present invention provided with such a wrinkle removing device, the film in a state where wrinkles in the width direction as well as the longitudinal direction are stretched can be wound around the winding portion. Even if the rotation speed is increased, air does not enter between the films. That is, by eliminating wrinkles that occur mainly in the width direction of the film, it is possible to increase the winding speed of the film by the winding unit in order to improve productivity. For this reason, with the winding device of the present invention, it is possible to significantly improve the production efficiency of a capacitor element with stable performance as compared with the conventional case.

また、フィルムの巻取り装置がコンデンサ素子の周面に付勢状態で当接する加圧ローラとともに重ね合わされた２枚のフィルムを圧縮する補助ローラ又は加圧ローラと別に設けられた一対の重合ローラを備える場合、巻取り部に巻き取る前に予め重ね合わされた２枚のフィルム間のエアを取り除くことができ、その後、密着した２枚のフィルムを巻取り部に加圧ローラにて押しつけながら巻取る事により、エアの巻き込みを確実に減らすとともに、巻取られるフィルム間のズレを防止することもできる。 In addition, the film winding device includes a pair of superposition rollers provided separately from the auxiliary roller or the pressure roller for compressing the two films superposed together with the pressure roller in contact with the circumferential surface of the capacitor element in a biased state. When equipped, it is possible to remove the air between the two films superposed in advance before winding up on the winding section, and then wind the two films that are in close contact with the winding section while pressing them with a pressure roller. As a result, air entrainment can be reliably reduced and misalignment between the films to be wound can be prevented.

本発明実施形態のフィルムの巻取り装置の構成を示した概念図である。It is the conceptual diagram which showed the structure of the film winding apparatus of this invention embodiment. 図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 吹き付けるエアにより幅方向のしわが解消された状態を示す図２に対応する断面図である。It is sectional drawing corresponding to FIG. 2 which shows the state by which the wrinkle of the width direction was eliminated with the air to blow. 図２のＣ−Ｃ線断面図である。It is CC sectional view taken on the line of FIG. 搬送ローラの構成を示す図１のＢ−Ｂ線断面図である。FIG. 3 is a cross-sectional view taken along the line BB in FIG. 1 illustrating a configuration of a conveyance roller. 図５のＤ−Ｄ線断面図である。It is the DD sectional view taken on the line of FIG. 別の搬送ローラの構成を示す図５に対応する断面図である。It is sectional drawing corresponding to FIG. 5 which shows the structure of another conveyance roller. 図７のＥ−Ｅ線断面図である。It is the EE sectional view taken on the line of FIG. 本発明の別のしわ取り装置の構成を示す図３に対応する断面図である。It is sectional drawing corresponding to FIG. 3 which shows the structure of another wrinkle removal apparatus of this invention. 図９のＦ−Ｆ線断面図である。FIG. 10 is a sectional view taken along line FF in FIG. 9. 本発明の更に別のしわ取り装置の構成を示す図３に対応する断面図である。It is sectional drawing corresponding to FIG. 3 which shows the structure of another wrinkle removal apparatus of this invention. 図１１のＧ−Ｇ線断面図である。It is the GG sectional view taken on the line of FIG. 円柱状部材を有するしわ取り装置の構成を示す断面図である。It is sectional drawing which shows the structure of the wrinkle removal apparatus which has a cylindrical member. 図１３のＨ−Ｈ線断面図である。It is the HH sectional view taken on the line of FIG. 加圧ローラに補助ローラを当接させたフィルムの巻取り装置の構成を示す概念図である。It is a conceptual diagram which shows the structure of the film winding apparatus which made the auxiliary roller contact | abut to a pressure roller. 加圧ローラと別に一対の重合ローラを設けた図１５に対応する概念図である。It is a conceptual diagram corresponding to FIG. 15 which provided a pair of superposition | polymerization roller separately from the pressure roller.

次に本発明を実施するための最良の形態を図面に基づいて説明する。 Next, the best mode for carrying out the present invention will be described with reference to the drawings.

図１に、本発明の実施の形態によるフィルムの巻取り装置１０を示す。この巻取り装置１０は、図示しないボビン又はリールに巻回された帯状フィルム１１を送り出す供給部１２を備える。この実施の形態における供給部１２とは、図示しないボビン又はリールに巻回された金属化フィルム１１を装填可能に構成された巻き出し軸であり、本実施の形態では、この帯状の金属化フィルム１１を２枚１組として一対で重ね合わせて巻回する構成のものであるため、２組の帯状金属化フィルム１１を夫々装填できるように、供給部としての巻き出し軸１２も一対、即ち２本備えられる。なお、この金属化フィルム１１としては、コンデンサ用のものとしては、ポリプロピレンからなる誘電体フィルムの片面に金属蒸着電極を形成することによって構成された、幅８０ｍｍ、厚さ３μｍのものが例示される。 FIG. 1 shows a film winding apparatus 10 according to an embodiment of the present invention. The winding device 10 includes a supply unit 12 that feeds a belt-like film 11 wound around a bobbin or a reel (not shown). The supply unit 12 in this embodiment is an unwinding shaft configured to be loaded with a metallized film 11 wound around a bobbin or a reel (not shown). In the present embodiment, this strip-shaped metallized film is used. 11 is a set of two sheets that are overlapped and wound as a pair, so that two pairs of strip metallized films 11 can be loaded, respectively, so that the unwinding shaft 12 as a supply unit is also a pair, that is, 2 A book is provided. In addition, as this metallized film 11, the thing for 80 mm in width and 3 micrometers in thickness comprised by forming a metal vapor deposition electrode in the single side | surface of the dielectric film which consists of a polypropylene as a thing for capacitors is illustrated. .

また、巻取り装置１０には、供給部１２から送り出されるフィルム１１を巻回する巻取り部１３が備えられる。フィルム１１を巻回する巻取り部は巻芯１３により構成され、供給部である巻き出し軸１２と巻取り部である巻芯１３の間のフィルム１１の搬送経路には複数の搬送ローラ１６，１７，１８，１９が設けられる。図における搬送ローラは、ガイドローラ１６、ダンサーローラ１７、アイドルローラ１８及び加圧ローラ１９から成る場合を示す。ここで、ガイドローラ１６は、金属化フィルム１１の搬送経路に複数本固定して設けられて金属化フィルム１１の搬送をガイドするものである。また、ダンサーローラ１７はガイドローラ１６間にある揺動片１７ａの揺動端に枢支され、この揺動片１７ａが揺動することにより移動可能に設けられる。揺動片１７ａの揺動は図示しないポテンショメータ又はエンコーダ等の検出器により検出され、ポテンショメータ等の検出出力により巻き出し軸１２の回転速度を制御可能に構成される。 The winding device 10 includes a winding unit 13 that winds the film 11 fed from the supply unit 12. The winding unit for winding the film 11 is constituted by a core 13, and a plurality of transport rollers 16 are provided in the transport path of the film 11 between the unwinding shaft 12 that is a supply unit and the core 13 that is a winding unit. 17, 18, and 19 are provided. In the drawing, the conveying roller is composed of a guide roller 16, a dancer roller 17, an idle roller 18 and a pressure roller 19. Here, a plurality of guide rollers 16 are provided in the conveyance path of the metallized film 11 so as to guide the conveyance of the metallized film 11. The dancer roller 17 is pivotally supported by a swing end of a swing piece 17a between the guide rollers 16, and is movably provided by swinging the swing piece 17a. The swing of the swing piece 17a is detected by a detector such as a potentiometer or an encoder (not shown), and the rotational speed of the unwinding shaft 12 can be controlled by the detection output of the potentiometer or the like.

ここで、図１では巻取り部である巻芯１３に巻回された金属化フィルム１１から成るコンデンサ素子を符号１４で示す。加圧ローラ１９は、このコンデンサ素子１４の周面に付勢状態で当接し、フィルム１１を巻芯１３に巻回する際にそのフィルム１１間にエアが巻き込まれることを防止するローラであり、ウレタンゴム製のものが例示されるけれども、ウレタンゴム製のものに限定するものではない。なお、複数の搬送ローラ１６，１７，１８，１９により、金属化フィルム１１に形成された図示しない金属蒸着電極が加圧ローラ１９の周面に接するようにして金属化フィルム１１が搬送されるものとする。そして、加圧ローラ１９はスライド板２１に回転自在に取付けられ、スライド板２１は巻芯１３に対して移動可能に設けられる。具体的に、スライド板２１の下面には複数の溝から成るラックギヤ２１ａが形成され、そのラックギヤ２１ａと噛み合うピニオンギヤ２２が設けられる。このピニオンギヤ２２は図示しないエンコーダにより回転し、ピニオンギヤ２２の回転によりスライド板２１は図１の左右方向に移動可能に構成される。 Here, in FIG. 1, a reference numeral 14 indicates a capacitor element made of a metallized film 11 wound around a winding core 13 that is a winding portion. The pressure roller 19 is a roller that abuts against the circumferential surface of the capacitor element 14 in a biased state and prevents air from being caught between the films 11 when the film 11 is wound around the core 13. Although the thing made from urethane rubber is illustrated, it does not limit to the thing made from urethane rubber. The metallized film 11 is conveyed by a plurality of conveying rollers 16, 17, 18, 19 so that a metal vapor deposition electrode (not shown) formed on the metallized film 11 is in contact with the peripheral surface of the pressure roller 19. And The pressure roller 19 is rotatably attached to the slide plate 21, and the slide plate 21 is provided so as to be movable with respect to the core 13. Specifically, a rack gear 21a composed of a plurality of grooves is formed on the lower surface of the slide plate 21, and a pinion gear 22 that meshes with the rack gear 21a is provided. The pinion gear 22 is rotated by an encoder (not shown), and the slide plate 21 is configured to be movable in the left-right direction in FIG. 1 by the rotation of the pinion gear 22.

図示しないが、巻取り装置１０には、コンデンサ素子１４の外径を検出するセンサが設けられる。一対の金属化フィルム１１を巻回してコンデンサ素子１４を作製すると、その巻取り作業が進むに連れてコンデンサ素子１４の外径は徐々に大きくなり、これに伴ってコンデンサ素子１４の周面に当接して付勢している加圧ローラ１９は外方へ押されることになるけれども、このような外径の増大は図示しないセンサによって検知され、この結果に基づいてピニオンギヤ２２を回転させてスライド板２１をコンデンサ素子１４から遠ざかる方向（図中の右側）に移動可能に構成される。これにより、そのスライド板２１とともに加圧ローラ１９もコンデンサ素子１４から遠ざかる方向に移動し、コンデンサ素子１４の周面を加圧ローラ１９が付勢する力を常に一定にするように構成される。アイドルローラ１８は、このスライド板２１に設けられ、スライド板２１が移動することにより加圧ローラ１９とともにアイドルローラ１８も移動可能に構成される。 Although not shown, the winding device 10 is provided with a sensor that detects the outer diameter of the capacitor element 14. When the capacitor element 14 is produced by winding a pair of metallized films 11, the outer diameter of the capacitor element 14 gradually increases as the winding operation proceeds, and accordingly, the outer diameter of the capacitor element 14 contacts the peripheral surface of the capacitor element 14. Although the pressure roller 19 that is urged in contact is pushed outward, such an increase in outer diameter is detected by a sensor (not shown), and the pinion gear 22 is rotated based on this result to slide the slide plate. 21 is configured to be movable in a direction away from the capacitor element 14 (right side in the figure). As a result, the pressure roller 19 is moved in a direction away from the capacitor element 14 together with the slide plate 21, and the force applied by the pressure roller 19 to the peripheral surface of the capacitor element 14 is always made constant. The idle roller 18 is provided on the slide plate 21, and the idle roller 18 can be moved together with the pressure roller 19 by moving the slide plate 21.

複数の搬送ローラ１６，１７，１８，１９の全部又は一部は、フィルム１１が掛け回される外周から吹き出すエアによりフィルム１１を浮上させてそのフィルム１１を搬送するように構成される。この実施の形態では、加圧ローラ１９を除く、ガイドローラ１６、ダンサーローラ１７及びアイドルローラ１８の全てがフィルム１１を浮上させて搬送するものである場合を示す。これらは同一構造であり、図１におけるダンサーローラ１７の下流側に設けられたガイドローラ１６を代表して説明すると、図５及び図６に示すように、このローラ１６は、外周から吹き出すエアにより掛け回されたフィルム１１を浮上可能に構成された筒部２３と、その筒部２３の両側に設けられて筒部２３に掛け回されて浮上するフィルム１１の幅方向の移動を制限する壁部材２４，２５とを備える。 All or some of the plurality of transport rollers 16, 17, 18, and 19 are configured to float the film 11 with the air blown from the outer periphery around which the film 11 is wound and transport the film 11. In this embodiment, the case where all of the guide roller 16, the dancer roller 17, and the idle roller 18 except the pressure roller 19 float and convey the film 11 is shown. These are of the same structure, and the guide roller 16 provided on the downstream side of the dancer roller 17 in FIG. 1 will be described as a representative. As shown in FIGS. 5 and 6, the roller 16 is caused by air blown from the outer periphery. A cylindrical portion 23 configured to be able to float the hung film 11, and a wall member that is provided on both sides of the cylindrical portion 23 and restricts movement in the width direction of the film 11 that is hung on the cylindrical portion 23 and floats. 24, 25.

図５及び図６に示すガイドローラ１６は、金属又は樹脂等からなる固形物を切削加工することにより筒部２３と壁部材２４，２５がそれぞれ一体となって形成されたものを例示し、筒部２３は、中心軸に沿って貫通孔２３ａが形成された円筒状をなし、その軸方向の両端を封止するように壁部材２４，２５が設けられる。図５に示すように、壁部材２４，２５は筒部２３の外径より大きな外径を有し、その筒部２３の両側にフィルム１１の幅より僅かに広い間隔を空けてその筒部２３と同軸に設けられる。筒部２３の一端側における壁部材２４には、筒部２３と同軸の雄ねじ２４ａが形成され、巻取り装置１０のパネル１０ａにはこの雄ねじ２４ａを取付ける挿通孔１０ｂが形成される。パネル１０ａに形成された挿通孔１０ｂにこの雄ねじ２４ａを挿通し、ワッシャ２６ａを介してナット２６ｂを螺合することにより、このローラ１６は巻取り装置１０のパネル１０ａに固定される。 The guide roller 16 shown in FIGS. 5 and 6 is an example in which a cylindrical portion 23 and wall members 24 and 25 are integrally formed by cutting a solid material made of metal, resin, or the like. The part 23 has a cylindrical shape in which a through hole 23a is formed along the central axis, and wall members 24 and 25 are provided so as to seal both ends in the axial direction. As shown in FIG. 5, the wall members 24, 25 have an outer diameter larger than the outer diameter of the cylindrical portion 23, and the cylindrical portion 23 is spaced on both sides of the cylindrical portion 23 with a space slightly wider than the width of the film 11. And provided coaxially. The wall member 24 on one end side of the cylindrical portion 23 is formed with a male screw 24a coaxial with the cylindrical portion 23. The panel 10a of the winding device 10 is formed with an insertion hole 10b for attaching the male screw 24a. The roller 16 is fixed to the panel 10a of the winding device 10 by inserting the male screw 24a through the insertion hole 10b formed in the panel 10a and screwing the nut 26b through the washer 26a.

また、この一端側の壁部材２４には、貫通孔２３ａに連通する連通孔２４ｂが中心軸に貫通して形成され、その連通孔２４ｂの一端側にはエア供給用の第１エアチューブ２７を固定可能な第１カプラ２８が設けられる。なお、筒部２３の他端側における壁部材２５には、筒部２３における貫通孔２３ａの他端側を封止する蓋板２９ａが雄ねじ２９ｂにより取付けられる。壁部材２４，２５間における筒部２３には貫通孔２３ａに一端が連通する複数のエア孔２３ｃが、その他端を外周面に開口させるようにその中心軸から放射状に形成される。この複数のエア孔２３ｃはフィルム１１が掛け回される部分に形成され、第１エアチューブ２７により供給され第１カプラ２８を介して貫通孔２３ａの内部に供給された圧縮エアは、一点鎖線矢印で示すように、貫通孔２３ａを通過した後この複数のエア孔２３ｃからローラ１６の筒部２３における外表面に吹き出され、この吹き出されたエアによりこのローラ１６に掛け回されたフィルム１１を図６に示すように浮上可能に構成される。そして、筒部２３の両側に設けられた壁部材２４，２５は筒部２３に掛け回されて浮上するフィルム１１の幅方向の両側に位置し、そのフィルム１１の幅方向の移動を制限した状態で搬送可能に構成される。 Further, a communication hole 24b communicating with the through hole 23a is formed in the wall member 24 on one end side so as to penetrate the central axis, and a first air tube 27 for supplying air is provided on one end side of the communication hole 24b. A fixed first coupler 28 is provided. A lid plate 29a for sealing the other end side of the through hole 23a in the cylinder portion 23 is attached to the wall member 25 on the other end side of the cylinder portion 23 by a male screw 29b. A plurality of air holes 23c having one end communicating with the through hole 23a are formed radially from the central axis of the cylindrical portion 23 between the wall members 24 and 25 so as to open the other end to the outer peripheral surface. The plurality of air holes 23c are formed in a portion around which the film 11 is wound, and the compressed air supplied from the first air tube 27 and supplied to the inside of the through hole 23a through the first coupler 28 is indicated by a one-dot chain line arrow. As shown in FIG. 4, after passing through the through hole 23a, the film 11 blown out from the plurality of air holes 23c to the outer surface of the cylindrical portion 23 of the roller 16 and is wound around the roller 16 by the blown air is shown in FIG. As shown in FIG. And the wall members 24 and 25 provided on both sides of the cylinder part 23 are located on both sides in the width direction of the film 11 hung around the cylinder part 23 and floated, and the movement of the film 11 in the width direction is restricted. It is configured to be transportable.

図１に戻って、加圧ローラ１９が設けられたスライド板２１には帯状フィルム１１の主に幅方向のしわを取るしわ取り装置３０が設けられ、アイドルローラ１８に掛け回されたフィルム１１がこのしわ取り装置３０を通過した後に加圧ローラ１９に達するように構成される。図１の拡大図及び図２〜図４に示すように、このしわ取り装置３０は、長手方向に移動する帯状フィルム１１が沿う第１部材３１と、その帯状フィルム１１に所定の間隔を空けて対向してその第１板材３１とともにフィルム１１を挟む第２部材３２とを備える。この実施の形態における第１及び第２部材３１，３２はそれぞれ所定の厚みを持った方形状の板材から成り、この対向面の両側にフィルム１１の幅より広い間隔を空けて設けられたスペーサ板材３３を介して重ね合わされる場合を示す。 Returning to FIG. 1, the slide plate 21 provided with the pressure roller 19 is provided with a wrinkle removing device 30 for removing wrinkles mainly in the width direction of the belt-like film 11, and the film 11 wound around the idle roller 18 is provided. After passing through the wrinkle removing device 30, the pressure roller 19 is configured. As shown in the enlarged view of FIG. 1 and FIGS. 2 to 4, the wrinkle removing device 30 includes a first member 31 along which the strip-shaped film 11 moving in the longitudinal direction and a predetermined interval between the strip-shaped film 11. And a second member 32 sandwiching the film 11 together with the first plate 31. The first and second members 31 and 32 in this embodiment are each composed of a rectangular plate material having a predetermined thickness, and spacer plate materials provided on both sides of the opposing surface with a gap wider than the width of the film 11. The case where it overlaps via 33 is shown.

第１部材である第１板材３１の四隅には雌ねじ孔３１ａが形成され、雌ねじ孔３１ａに対向する第２部材である第２板材３２及びスペーサ板材３３にはそれぞれ取付孔３２ａ，３３ａが形成される。そして、ボルト３４の雄ねじ部３４ａをこれらの取付孔３２ａ，３３ａに挿入させて雌ねじ孔３１ａに螺合させることにより第２板材３２を、スペーサ板材３３の厚さに相当する所定の隙間を空けて第１板材３１に対向させ、その状態で固定される。なお、所定の隙間はその第１及び第２板材３１，３２が挟むフィルム１１の厚さによって異なり、厚さが３μｍのフィルム１１を用いるこの実施の形態における隙間は１５０μｍである。１５０μｍとする理由は、後述するフィルム１１の張力のコントロールがしやすい事による。即ち、この隙間が狭いとエアが外部に流れ出し難く、結果、内部圧力が上がりやすいため、フィルム１１の張力が上昇する。その一方、この隙間が広いと、エアが外部に漏れ出し、内部圧力が上がらないため、フィルム１１の張力を上げにくいからである。適度な隙間としては１００〜１５０μｍ程度と考えられる。 Female screw holes 31a are formed at the four corners of the first plate 31 that is the first member, and mounting holes 32a and 33a are formed in the second plate 32 and the spacer plate 33 that are the second members that face the female screw 31a, respectively. The Then, by inserting the male threaded portion 34a of the bolt 34 into these mounting holes 32a and 33a and screwing it into the female threaded hole 31a, the second plate member 32 has a predetermined gap corresponding to the thickness of the spacer plate member 33. It is made to oppose the 1st board | plate material 31, and is fixed in the state. The predetermined gap differs depending on the thickness of the film 11 sandwiched between the first and second plate members 31 and 32, and the gap in this embodiment using the film 11 having a thickness of 3 μm is 150 μm. The reason for setting it to 150 μm is that it is easy to control the tension of the film 11 described later. That is, if this gap is narrow, the air is difficult to flow to the outside, and as a result, the internal pressure tends to increase, so that the tension of the film 11 increases. On the other hand, if this gap is wide, air leaks to the outside and the internal pressure does not increase, so it is difficult to increase the tension of the film 11. An appropriate gap is considered to be about 100 to 150 μm.

第２部材である第２板材３２には、フィルム１１に臨むようにそのフィルム１１の幅方向の中間にエアを吹き付け可能な空気孔３２ｂが形成される。この空気孔３２ｂは第２板材３２の中央にこの第２板材３２を貫通して設けられ、フィルム１１に対向する第２板材３２の内面は、その空気孔３２ｂに連通してフィルム１１の幅方向に延びる凹溝３２ｃが形成される。第２板材３２の外面側には第２エアチューブ３６を固定する第２カプラ３７が設けられ、この第２エアチューブ３６はエア供給源である図示しないエアタンクに接続される。そして、この図示しないエアタンクから第２エアチューブ３６を介して供給された圧縮エアは、第２カプラ３７を通過して空気孔３２ｂからフィルム１１に吹き付けられ、そのエア圧により帯状フィルム１１を第１部材である第１板材３１に押しつけるように構成される。よって、図示しないエアタンク、第２エアチューブ３６及び第２カプラ３７は空気孔３２ｂからエアを帯状フィルム１１に吹き付けてその帯状フィルム１１を第１部材３１に押しつけるエア吹き付け手段として機能するものである。 In the second plate member 32 as the second member, an air hole 32b is formed so that air can be blown in the middle in the width direction of the film 11 so as to face the film 11. The air hole 32b is provided in the center of the second plate 32 through the second plate 32, and the inner surface of the second plate 32 facing the film 11 communicates with the air hole 32b in the width direction of the film 11. A concave groove 32c is formed extending in the direction. A second coupler 37 for fixing the second air tube 36 is provided on the outer surface side of the second plate member 32, and the second air tube 36 is connected to an air tank (not shown) that is an air supply source. The compressed air supplied from the air tank (not shown) through the second air tube 36 passes through the second coupler 37 and is blown onto the film 11 from the air holes 32b. It is comprised so that it may press on the 1st board | plate material 31 which is a member. Therefore, the air tank, the second air tube 36, and the second coupler 37 (not shown) function as air blowing means that blows air from the air holes 32b onto the strip film 11 and presses the strip film 11 against the first member 31.

一方、第１部材である第１板材３１のフィルム１１に対向する面は粗面加工される。具体的な加工方法としてはサンドブラスト加工が挙げられ、粗面の程度は中心線平均あらさ（Ｒａ）で６．３〜２５μｍ程度が好ましい。この粗面加工する目的としては、フィルム１１と第１板材３１の密着を防ぐ事にある。即ち、板材３１が鏡面である場合には、フィルム１１が一度密着してしまうと、その板材３１とフィルム１１間にエアが入らない為、その板材３１とフィルム１１を引き剥がすのは困難になる。この点で、粗面で接していれば、点接触となり、板材３１とフィルム１１間にエアが存在することになり、密着を防ぐ効果がある。なお、平均あらさに関する数値は例示であって、サンドブラスト加工以外の加工方法であっても第１板材３１とフィルム１１間の密着を防ぐ方法であれば可能である。 On the other hand, the surface facing the film 11 of the first plate 31 that is the first member is roughened. Specific examples of the processing method include sandblasting, and the degree of the rough surface is preferably about 6.3 to 25 μm in terms of centerline average roughness (Ra). The purpose of this rough surface processing is to prevent the film 11 and the first plate 31 from being in close contact. That is, in the case where the plate material 31 is a mirror surface, once the film 11 comes into close contact, air does not enter between the plate material 31 and the film 11, making it difficult to peel off the plate material 31 and the film 11. . In this respect, if they are in contact with a rough surface, point contact occurs, and air exists between the plate material 31 and the film 11, which has an effect of preventing adhesion. In addition, the numerical value regarding an average roughness is an illustration, Comprising: Even if it is a processing method other than sandblasting, if it is a method of preventing the close_contact | adherence between the 1st board | plate material 31 and the film 11, it is possible.

次に、このように構成された本実施の形態におけるフィルムの巻取り装置の動作について説明する。 Next, the operation of the film winding device in the present embodiment configured as described above will be described.

図１に示すように、ボビン又はリールに巻回されて巻き出し軸１２に装填された帯状の金属化フィルム１１は、巻き出し軸１２が回転することによりそのボビン又はリールから巻き出され、ガイドローラ１６、ダンサーローラ１７、ガイドローラ１６、アイドルローラ１８及びしわ取り装置３０を経て、図中の左方向の巻取り部である巻芯１３へと搬送される。２本の巻き出し軸２１からそれぞれ繰り出された金属化フィルム１１，１１は加圧ローラ１９において重ね合わされ、巻取り部である巻芯１３には重ね合わせた状態の２枚の金属化フィルム１１，１１を一対としてその巻芯１３上の周囲に巻回する。巻芯１３は回転することによりそれぞれの金属化フィルム１１，１１を、一対の金属蒸着電極が誘電体フィルムを介して対向するように巻回し、加圧ローラは巻芯１３に巻回されたフィルム１１を外部から加圧して巻回された金属化フィルム１１から成るコンデンサ素子１４を作製する。 As shown in FIG. 1, the band-shaped metallized film 11 wound around a bobbin or reel and loaded on the unwinding shaft 12 is unwound from the bobbin or reel when the unwinding shaft 12 rotates to guide the belt. The roller 16, the dancer roller 17, the guide roller 16, the idle roller 18, and the wrinkle removing device 30 are conveyed to the winding core 13 that is a winding portion in the left direction in the drawing. The metallized films 11 and 11 respectively fed out from the two unwinding shafts 21 are superposed on the pressure roller 19, and the two metallized films 11 and 11 are superposed on the core 13 which is a winding part. 11 is wound around the core 13 as a pair. The core 13 is rotated to wind the respective metallized films 11, 11 such that a pair of metal vapor deposition electrodes are opposed to each other with a dielectric film therebetween, and the pressure roller is a film wound around the core 13. The capacitor | condenser element 14 which consists of the metallized film 11 wound by pressurizing 11 from the outside is produced.

金属化フィルム１１を巻回してコンデンサ素子１４を作製するとその外径は徐々に大きくなるけれども、この外径の増大は図示しないセンサによって検知され、この結果に基づいてスライド板２１はコンデンサ素子１４から遠ざかる方向に移動し、コンデンサ素子１４の周面を加圧ローラ１９が付勢する力を常に一定に制御する。一方、回転することにより金属化フィルム１１を送り出す巻き出し軸１２では、巻回されたフィルム１１の外径は減少し、ダンサーローラ１７に掛け回されてガイドローラ１６間にあるフィルム１１の全長は徐々に縮まって、そのダンサーローラ１７は図１の上方に移動する。この移動は揺動片１７ａの回転角度として図示しないポテンショメータ等によって検出され、この検出信号により巻き出し軸１２の回転速度は増加され、フィルム１１の供給量を必要とする量に一致させる。 When the capacitor element 14 is produced by winding the metallized film 11, the outer diameter gradually increases. However, the increase in the outer diameter is detected by a sensor (not shown), and the slide plate 21 is moved from the capacitor element 14 based on this result. It moves in the direction of moving away, and the force with which the pressure roller 19 urges the peripheral surface of the capacitor element 14 is always controlled to be constant. On the other hand, in the unwinding shaft 12 that feeds the metallized film 11 by rotating, the outer diameter of the wound film 11 decreases, and the entire length of the film 11 between the guide rollers 16 is wound around the dancer roller 17. By gradually contracting, the dancer roller 17 moves upward in FIG. This movement is detected by a potentiometer (not shown) as the rotation angle of the swing piece 17a, and the rotation speed of the unwinding shaft 12 is increased by this detection signal, so that the supply amount of the film 11 matches the required amount.

そして、巻き出し軸１２と巻芯１３との間の搬送経路における、ガイドローラ１６、ダンサーローラ１７、ガイドローラ１６及びアイドルローラ１８にあっては、帯状のフィルム１１が掛け回される外周から吹き出すエアによりフィルム１１を浮上させてそのフィルム１１を供給部１２から巻取り部１３まで搬送する。これにより、これらのローラ１６，１７，１８においてフィルム１１の搬送抵抗を著しく低下させることができる。そして、筒部２３の両側に設けられた壁部材２４，２５は筒部２３に掛け回されて浮上するフィルム１１の幅方向の移動を制限して、そのフィルム１１が搬送経路から逸脱するようなことを防止する。このとき、フィルム１１を浮上させて搬送するこれらの搬送ローラ１６，１７，１８では、フィルム１１の搬送抵抗が著しく低下するので、フィルム１１に触れただけでその移動を制限可能であり、フィルム１１を浮上させないで接触させ回転することによりそのフィルムを搬送する従来のローラに比較して、フィルム１１の幅方向の移動の制限は容易となる。このため、接触するフィルムを回転することにより搬送する従来のローラでは、フィルムが接触する接触抵抗により、壁部材による幅方向の移動の制限が効かずにフィルムが壁部材の周囲に乗り上げてしまうようなこともあるけれども、フィルム１１を浮上させる本発明の搬送ローラ１６〜１８では、フィルム１１が壁部材２４，２５に乗り上げてしまうようなことを有効に防止することができる。 The guide roller 16, dancer roller 17, guide roller 16, and idle roller 18 in the conveyance path between the unwinding shaft 12 and the core 13 blow out from the outer periphery around which the belt-shaped film 11 is wound. The film 11 is floated by air and the film 11 is conveyed from the supply unit 12 to the winding unit 13. Thereby, the conveyance resistance of the film 11 can be remarkably reduced in these rollers 16, 17 and 18. And the wall members 24 and 25 provided on both sides of the cylinder part 23 restrict the movement in the width direction of the film 11 that is hung around the cylinder part 23 and floats, so that the film 11 deviates from the conveyance path. To prevent that. At this time, in these transport rollers 16, 17, and 18 that transport the film 11 by floating, the transport resistance of the film 11 is remarkably reduced. Therefore, the movement of the film 11 can be limited only by touching the film 11. The movement of the film 11 in the width direction can be easily limited as compared with the conventional roller that conveys the film by contacting and rotating the film 11 without floating. For this reason, in the conventional roller which conveys by rotating the film which contacts, the film will run on the circumference | surroundings of a wall member without the restriction | limiting of the movement of the width direction by a wall member by the contact resistance which a film contacts. However, the transport rollers 16 to 18 of the present invention that float the film 11 can effectively prevent the film 11 from riding on the wall members 24 and 25.

一方、しわ取り装置３０にあっては、第１板材３１と第２板材３２の間を長手方向に移動する金属化帯状フィルム１１に、第２板材３２の空気孔３２ｂからエアが吹き付けられる。そのエアは第２板材からフィルム１１に吹き付けられるので、そのフィルム１１は第１板材３１に押しつけられる。このため、その帯状フィルム１１は第１板材３１に押しつけられた状態で巻芯１３方向に移動することになり、このフィルム１１には第１板材３１に摺動することに起因する摺動抵抗が移動しようとする方向と反対方向に生じる。即ち、回転することによりフィルム１１を巻取る巻芯１３としわ取り装置３０の間におけるフィルム１１に摺動抵抗に略等しい張力が生じる。ここで、粗面加工された第１板材３１の内面における動摩擦係数は一定であるので、摺動抵抗はフィルム１１を第１板材３１に押しつける力、即ちフィルム１１に吹き付けるエアの圧力に比例することになる。よって、このしわ取り装置３０を巻取り部である巻芯１３の近傍に設けることにより、回転する巻芯１３に巻回される直前のフィルム１１に生じる摺動抵抗に略等しい張力をフィルム１１に吹き付けるエアの圧力により制御することが可能になる。 On the other hand, in the wrinkle removing device 30, air is blown from the air holes 32 b of the second plate material 32 to the metallized belt-like film 11 moving in the longitudinal direction between the first plate material 31 and the second plate material 32. Since the air is blown from the second plate material onto the film 11, the film 11 is pressed against the first plate material 31. For this reason, the belt-like film 11 moves in the direction of the core 13 while being pressed against the first plate 31, and the film 11 has a sliding resistance due to sliding on the first plate 31. It occurs in the direction opposite to the direction of movement. That is, by rotating, a tension approximately equal to the sliding resistance is generated in the film 11 between the winding core 13 for winding the film 11 and the wrinkle removing device 30. Here, since the coefficient of kinetic friction on the inner surface of the roughened first plate material 31 is constant, the sliding resistance is proportional to the force pressing the film 11 against the first plate material 31, that is, the pressure of the air sprayed on the film 11. become. Therefore, by providing this wrinkle removing device 30 in the vicinity of the core 13 that is the winding portion, the film 11 has a tension substantially equal to the sliding resistance generated in the film 11 immediately before being wound around the rotating core 13. It can be controlled by the pressure of air to be blown.

このフィルム１１に生じる張力が小さすぎた場合、フィルム１１にシワが無くても、このフィルム１１を巻回する巻芯１３の回転数を上げていくと、巻き上げたフィルム１１の外径が大きくなる傾向があり、フィルム１１間にエアが巻き込まれたと思われる現象を生じることになる。幅８０ｍｍ、厚さが３μｍのフィルム１１を用いるこの実施の形態では、フィルムの張力を２００ｇと設定した場合はこのような現象はかなり少なくなる。このことから、フィルム１１の張力は、フィルムの幅が７０〜８０ｍｍでは、１５０〜２００ｇ程度が適切と思われる。なお、第１板材３１のフィルム１１が押しつけられる内面は粗面加工されているので、粗面加工された内面における凹凸によりそのフィルム１１と第１板材３１の間に常にエアを介在させることができ、そのフィルム１１と第１板材３１の間が真空になってフィルム１１が大気圧により第１板材３１に接着されるような事態は防止される。 If the tension generated in the film 11 is too small, even if the film 11 is not wrinkled, the outer diameter of the wound film 11 increases as the number of rotations of the core 13 around which the film 11 is wound is increased. There is a tendency to cause a phenomenon that air is likely to be caught between the films 11. In this embodiment using the film 11 having a width of 80 mm and a thickness of 3 μm, this phenomenon is considerably reduced when the tension of the film is set to 200 g. From this, it is considered that the tension of the film 11 is about 150 to 200 g when the width of the film is 70 to 80 mm. Since the inner surface of the first plate 31 to which the film 11 is pressed is roughened, air can always be interposed between the film 11 and the first plate 31 due to the irregularities on the roughened inner surface. The situation in which the space between the film 11 and the first plate 31 is evacuated and the film 11 is bonded to the first plate 31 by atmospheric pressure is prevented.

また、このしわ取り装置３０にあっては、第１及び第２板材３１，３２は所定の間隔を空けて対向してフィルム１１を挟むので、空気孔３２ｂからフィルム１１に吹き付けられたエアは、その後フィルム１１の表面に流れ、その流れるエアによりフィルム１１を周囲に押し広げてしわを伸ばし、移動方向でないフィルム１１の幅方向におけるしわまでも伸ばす。特に、この実施の形態では凹溝３２ｃを形成したので、図３及び図４に示すように、吹き付けられたエアは凹溝３２ｃに従ってフィルム１１の幅方向に導かれる。このため、その幅方向に流れるエアは空気孔３２ｂからフィルムの幅方向両側に広がるように流れてそのフィルムを幅方向の両側に押し広げて幅方向に生じるしわを効果的に解消する。このため、図２に示すようにエアの吹き付けがない場合に、搬送方向の直交する横方向の断面において蛇行するような幅方向のしわが生じたフィルム１１は、空気孔３２ｂからエアを吹き付けることにより、図３に示すように幅方向のしわが解消された状態で第１板材３１に押し付けられる。 Further, in this wrinkle removing device 30, the first and second plate members 31, 32 face each other with a predetermined interval and sandwich the film 11, so that the air blown to the film 11 from the air holes 32b is After that, it flows on the surface of the film 11, and the air that flows pushes the film 11 to the periphery to stretch the wrinkles, and even the wrinkles in the width direction of the film 11 that are not in the moving direction. In particular, since the concave groove 32c is formed in this embodiment, the blown air is guided in the width direction of the film 11 along the concave groove 32c as shown in FIGS. For this reason, the air flowing in the width direction flows from the air holes 32b so as to spread on both sides in the width direction of the film, and the wrinkle generated in the width direction is effectively eliminated by pushing the film on both sides in the width direction. For this reason, when air is not blown as shown in FIG. 2, the film 11 in which wrinkles in the width direction meandering in the cross section in the transverse direction perpendicular to the transport direction is blown from the air holes 32b. Thus, as shown in FIG. 3, the sheet is pressed against the first plate member 31 in a state where wrinkles in the width direction are eliminated.

図１に戻って、上述のようにしわ取り装置３０によってその長手方向の張力が調整されかつ幅方向のしわが解消されたそれぞれの帯状の金属化フィルム１１，１１は、その状態で加圧ローラ１９の外周に掛け回されて重ね合わされ、直ちに巻芯１３に巻回される。そして、巻芯１３へのフィルム１１，１１の巻回作業中は、その巻芯１３に巻回されたフィルム１１，１から成るコンデンサ素子１４の周面を加圧ローラ１９により常時付勢することにより、薄い金属化フィルム１１を用いた場合でも、金属化フィルム１１，１１にしわが入ることがなくなり、安定した性能のコンデンサ素子１４を製造する。 Returning to FIG. 1, the strip-like metallized films 11, 11 whose longitudinal tension has been adjusted by the wrinkle removing device 30 as described above and whose wrinkles in the width direction have been eliminated are in this state the pressure roller. It is wound around the outer periphery of 19 and overlapped, and immediately wound around the core 13. During the winding operation of the films 11, 11 around the core 13, the circumferential surface of the capacitor element 14 composed of the films 11, 1 wound around the core 13 is constantly urged by the pressure roller 19. Thus, even when the thin metallized film 11 is used, the metallized films 11 and 11 are not wrinkled, and the capacitor element 14 having stable performance is manufactured.

本発明のフィルムの巻取り装置では、上述のようにフィルム１１のしわを解消するしわ取り装置３０を備えるので、長手方向のみならず幅方向のしわまでもが伸ばされた状態のフィルム１１を巻芯１３に巻回することができる。このため、そのフィルム１１は巻芯１３に先に巻回されたフィルム１１の外表面にしわが伸ばされた幅方向の大部分が当初から密着し、加圧ローラ１９によりその全部を先に巻回されたフィルム１１の外周面に確実に密着させることができる。よって、巻芯１３の回転速度を上昇させたとしても、フィルム１１間にエアが入り込むことを回避することができる。即ち、フィルム１１のしわを解消することにより生産性向上のために巻芯１３によるフィルム１１の巻回速度を上昇させることが可能になる。具体的には、巻取り部である巻芯１３のフィルム１１を巻回する速度を従来の２倍又は３倍程度まで著しく上昇させることができ、例えば、従来から困難とされた６０００ｒｐｍの回転速度で巻芯１３を回転させたとしても、巻回されたフィルム１１のしわを抑えつつフィルム１１間にエアが入り込むことを防止することができる。このため、しわ取り装置３０を備えた本発明の巻取り装置１０により、安定した性能のコンデンサ素子１４の製造効率を従来よりも著しく向上させることができる。 Since the film winding apparatus of the present invention includes the wrinkle removing apparatus 30 for eliminating wrinkles of the film 11 as described above, the film 11 in a state where not only the longitudinal direction but also the wrinkles in the width direction are stretched is wound. It can be wound around the core 13. For this reason, most of the width direction in which the wrinkles are stretched on the outer surface of the film 11 previously wound around the core 13 is closely adhered to the film 11 from the beginning, and the whole is wound first by the pressure roller 19. The film 11 can be securely adhered to the outer peripheral surface of the film 11. Therefore, even if the rotational speed of the core 13 is increased, air can be prevented from entering between the films 11. That is, by eliminating wrinkles of the film 11, it is possible to increase the winding speed of the film 11 by the winding core 13 in order to improve productivity. Specifically, the speed at which the film 11 of the winding core 13 that is a winding part is wound can be remarkably increased to about 2 or 3 times the conventional speed. For example, a rotational speed of 6000 rpm, which has been conventionally difficult. Even if the core 13 is rotated, air can be prevented from entering between the films 11 while suppressing wrinkles of the wound film 11. For this reason, the winding device 10 of the present invention provided with the wrinkle removing device 30 can significantly improve the production efficiency of the capacitor element 14 with stable performance as compared with the conventional case.

なお、上述した実施の形態では、第１板材３１と第２板材３２がスペーサ板材３３を介して重ね合わされたしわ取り装置３０を説明したが、第１板材３１に所定の間隔を空けて第２板材３２が対向し、その第２板材３２が第１板材３１とともにフィルム１１を挟むようなものである限り、スペーサ板材３３は必ずしも設けることを必要としない。例えば、図示しないが、第１板材及び第２板材のいずれか一方又は双方の両側を残してフィルムを挟む中央部分を切削し、その切削された部分の両側に所定の厚さのスペーサ部を形成し、このスペーサ部を介して両者を重ね合わせることにより、第１板材３１に所定の間隔を空けて第２板材３２を対向させてもよい。 In the above-described embodiment, the wrinkle removing device 30 in which the first plate member 31 and the second plate member 32 are overlapped via the spacer plate member 33 has been described. However, the first plate member 31 is spaced apart from the second plate by a predetermined interval. As long as the plate member 32 faces and the second plate member 32 sandwiches the film 11 together with the first plate member 31, the spacer plate member 33 is not necessarily provided. For example, although not shown in the drawing, the central portion that sandwiches the film is cut while leaving one or both of the first plate member and the second plate member, and a spacer portion having a predetermined thickness is formed on both sides of the cut portion. Then, the second plate member 32 may be opposed to the first plate member 31 at a predetermined interval by superimposing the two through the spacer portion.

また、上述した実施の形態では、貫通孔２３ａに一端が連通する複数のエア孔２３ｃが筒部２３に形成されたローラ１６を例示したが、外周から吹き出すエアにより掛け回されたフィルム１１を浮上可能である限り、筒部２３にエア孔２３ｃを形成することを要しない。例えば、図７及び図８に示すように、貫通孔２３ａから外周面にエアが通過可能な多孔質材料から筒部２３を形成し、その筒部２３の両側に壁部材２４，２５を接着するようにしても良い。この場合、壁部材２４，２５はエアを通過不能な金属又は樹脂により形成し、筒部２３のフィルム１１が掛け回されることのない外周部分をシールド部材３８により封止することが考えられる。このようなローラ１６であっても、貫通孔２３ａに供給された圧縮エアはその貫通孔２３ａからシールド部材３８により封止されていない筒部２３を一点鎖線矢印で示すように通過して、フィルム１１が掛け回された外周から矢印で示すように吹き出し、その筒部２３に掛け回されたフィルムを浮上させることができる。そして、壁部材２４，２５によりその筒部２３に掛け回されて浮上するフィルム１１の幅方向の移動を制限することができる。 Further, in the above-described embodiment, the roller 16 in which the plurality of air holes 23c having one end communicating with the through hole 23a is formed in the cylindrical portion 23 is exemplified. However, the film 11 hung around by the air blown from the outer periphery is levitated. As long as it is possible, it is not necessary to form the air hole 23c in the cylinder part 23. FIG. For example, as shown in FIGS. 7 and 8, a cylindrical portion 23 is formed from a porous material through which air can pass from the through hole 23 a and the wall members 24 and 25 are bonded to both sides of the cylindrical portion 23. You may do it. In this case, it is conceivable that the wall members 24 and 25 are made of metal or resin that cannot pass air, and the outer peripheral portion where the film 11 of the cylindrical portion 23 is not wound is sealed with the shield member 38. Even in such a roller 16, the compressed air supplied to the through hole 23 a passes through the cylindrical portion 23 that is not sealed by the shield member 38 from the through hole 23 a as shown by a one-dot chain line arrow, and the film As shown by an arrow from the outer periphery on which 11 is hung, the film hung on the cylinder portion 23 can be floated. And the movement of the film 11 which is hung around the cylinder part 23 by the wall members 24 and 25 and floats can be restricted.

また、上述した実施の形態では、第２部材である第２板材３２の幅方向の中間に単一の空気孔３２ｂを形成し、この空気孔３２ｂに連通してフィルム１１の幅方向に延びる凹溝３２ｃが形成される場合を例示したが、凹溝３２ｃを必ずしも設けることは必要とせず、空気孔３２ｂも単一である必要はない。例えば、図９〜図１２に示すように、凹溝を設けることなく、複数の空気孔３２ｂを第２部材である第２板材３２に形成しても良い。この場合、エアを帯状フィルム１１に吹き付けてその帯状フィルム１１を第１部材３１である第１板材３１に押しつけることができる限り、図９及び図１０に示すように、エア吹き付け手段として機能する第２エアチューブ３６及び第２カプラ３７を複数の空気孔３２ｂにそれぞれ設けても良く、図１１及び図１２に示すように、第２部材である第２板材３２に別部材から成る空気室形成部材４１を重合させて空気室４２を形成し、その空気室形成部材４１にエア吹き付け手段である単一の第２エアチューブ３６及び第２カプラ３７を接続してその空気室４２に図示しないエアタンクからの圧縮エアを供給し、その空気室４２に複数の空気孔３２ｂを連通させることにより、複数の空気孔３２ｂからエアを帯状フィルム１１に吹き付けるようにしても良い。このようにしても、フィルム１１に生じる摺動抵抗に略等しい張力をフィルム１１に吹き付けるエアの圧力により制御することが可能になり、フィルム１１の表面に流れるエアによりフィルム１１のしわを伸ばすことができる。 In the above-described embodiment, a single air hole 32b is formed in the middle of the width direction of the second plate member 32 as the second member, and the recess extending in the width direction of the film 11 communicates with the air hole 32b. Although the case where the groove 32c is formed is illustrated, it is not always necessary to provide the concave groove 32c, and the air hole 32b is not necessarily single. For example, as shown in FIGS. 9 to 12, a plurality of air holes 32 b may be formed in the second plate member 32 that is the second member without providing a concave groove. In this case, as long as the air can be blown onto the belt-like film 11 and the belt-like film 11 can be pressed against the first plate 31 that is the first member 31, as shown in FIG. 9 and FIG. 2 The air tube 36 and the second coupler 37 may be provided in the plurality of air holes 32b, respectively, and as shown in FIGS. 11 and 12, the air plate forming member is formed of a separate member on the second plate member 32 as the second member. 41 is polymerized to form an air chamber 42, and a single second air tube 36 and a second coupler 37, which are air blowing means, are connected to the air chamber forming member 41, and an air tank (not shown) is connected to the air chamber 42. The compressed air is supplied, and the air chamber 42 is communicated with the plurality of air holes 32b so that air is blown from the plurality of air holes 32b onto the belt-like film 11. It may be. Even in this case, it becomes possible to control the tension substantially equal to the sliding resistance generated in the film 11 by the pressure of the air sprayed on the film 11, and the wrinkles of the film 11 can be stretched by the air flowing on the surface of the film 11. it can.

また、上述した実施の形態では、第１部材３１として帯状フィルム１１が沿う所定の厚みを持った方形状の板材から成り、その板材からなる第１板材３１に帯状フィルム１１が押しつけられて摺動する場合を説明したが、第１部材は帯状フィルム１１が掛け回されるものであっても良い。例えば、図１３及び図１４に示すように、第１部材として帯状フィルム１１が外周に掛け回される断面が円形を成す円柱状部材６１を第１部材として用いても良い。この場合であっても、第２部材は、フィルム１１に所定の間隔を空けて対向してその第１部材６１とともにフィルム１１を挟むものであることを必要とする。このため、図１３及び図１４に示す第２部材６２は、その円柱状部材６１のフィルム１１が掛け回された部分を所定の間隔を空けて覆うように断面において半円状に湾曲した内面を有する覆い部６２ａと、その覆い部６２ａの両端に円柱状部材６１の両端を支持する支持部６２ｂ，６２ｃを備える。そして、その支持部６２ｂ，６２ｃに円柱状部材６１が雄ねじ６４を介して取付けられる。なお、図では帯状フィルム１１が３６０度折り返されて掛け回されて覆い部６２ａが半円を成す場合を示すけれども、掛け回しの程度は３６０度に限らず、３６０度未満であって第２部材６２における覆い部６２ａの断面が半円に満たないようなものであっても良い。 Further, in the above-described embodiment, the first member 31 is formed of a rectangular plate material having a predetermined thickness along which the belt-like film 11 is aligned, and the belt-like film 11 is pressed against the first plate member 31 made of the plate material to slide. Although the case where it does is demonstrated, the 1st member may be what the strip | belt-shaped film 11 is wound around. For example, as shown in FIGS. 13 and 14, a columnar member 61 having a circular cross section around which the belt-like film 11 is wound around the outer periphery may be used as the first member. Even in this case, the second member needs to be opposed to the film 11 with a predetermined interval and sandwich the film 11 together with the first member 61. For this reason, the second member 62 shown in FIGS. 13 and 14 has an inner surface that is curved in a semicircular shape in cross section so as to cover a portion of the cylindrical member 61 around which the film 11 is wound with a predetermined interval. The cover part 62a which has and the support parts 62b and 62c which support the both ends of the cylindrical member 61 at the both ends of the cover part 62a are provided. The columnar member 61 is attached to the support portions 62b and 62c via the male screw 64. Although the figure shows a case where the belt-like film 11 is folded 360 degrees and wrapped so that the cover 62a forms a semicircle, the degree of the hanging is not limited to 360 degrees and is less than 360 degrees, and the second member The cross section of the cover 62a in 62 may be less than a semicircle.

ここで、図における符号６２ｅはその空気孔６２ｄに連通してフィルム１１の幅方向に延びる凹溝６２ｅであり、その作用及び効果は上述した実施の形態における第２板材３２に形成された凹溝３２ｃと同一であるので繰り返しての説明を省略する。ただし、この凹溝６２ｅを必ずしも設けることは必要とせず、空気孔６２ｄも単一である必要がない点は上述した実施の形態と同一である。 Here, reference numeral 62e in the figure is a concave groove 62e that communicates with the air hole 62d and extends in the width direction of the film 11, and the function and effect thereof are the concave grooves formed in the second plate member 32 in the above-described embodiment. Since it is the same as 32c, repeated description is omitted. However, it is not always necessary to provide the concave groove 62e, and the air hole 62d does not have to be single, which is the same as the above-described embodiment.

また、図１３及び図１４に示すように、円柱状部材のように帯状フィルム１１が掛け回される第１部材６１であっても、その第１部材６１を第２部材６２に回転不能の状態で取付け、その第１部材６１に帯状フィルム１１を摺動させるようにしても良い。掛け回された帯状フィルム１１を第１部材６１に摺動させる場合には、その第１部材６１は断面が円形を成す円柱状であることを要せず、図示しないが、フィルム１１が掛け回される円弧状部分を有する断面が半円状または扇状を成す棒状部材であっても良い。このようにフィルム１１が掛け回されて移動不能の第１部材６１及び覆い部６２ａを有する第２部材６２を備えたしわ取り装置６０であっても、その第２部材６２の覆い部６２ａに形成された空気孔６２ｄからエア吹き付け手段によりエアを帯状フィルム１１に吹き付けることにより、その帯状フィルム１１を第１部材に押しつけることができ、フィルム１１の張力をそのフィルム１１に吹き付けるエアの圧力により制御することが可能になり、そのフィルム１１に吹き付けられて表面に流れるエアによりそのフィルム１１のしわを伸ばすことができる。 Further, as shown in FIGS. 13 and 14, even when the first member 61 is wound around the belt-like film 11 like a columnar member, the first member 61 cannot be rotated by the second member 62. And the belt-like film 11 may be slid on the first member 61. When the belt-like film 11 that has been wound is slid on the first member 61, the first member 61 does not have to be a circular column having a circular cross section. It may be a rod-shaped member whose section having an arc-shaped portion is semicircular or fan-shaped. Thus, even if it is the wrinkle removal apparatus 60 provided with the 2nd member 62 which has the 1st member 61 and the cover part 62a which cannot be moved by the film 11 being wound around, it forms in the cover part 62a of the 2nd member 62 By blowing air onto the belt-like film 11 from the air holes 62d by the air blowing means, the belt-like film 11 can be pressed against the first member, and the tension of the film 11 is controlled by the pressure of the air blown against the film 11 The wrinkles of the film 11 can be stretched by the air that is blown onto the film 11 and flows to the surface.

また、上述した実施の形態では、このコンデンサ素子１４の周面に単一の加圧ローラ１９が付勢状態で当接するフィルムの巻取り装置１０を説明したが、図１５に示すように、フィルム１１間にエアが巻き込まれることを確実に防止するために、この加圧ローラ１９にウレタンゴム製のローラから成る補助ローラ７１を付勢状態で当接させ、この加圧ローラ１９と補助ローラ７１間に２枚のフィルム１１を重ね合わされた状態で通過させ、巻芯１３に巻回する以前に重ね合わされたフィルム１１を圧縮してそのフィルム１１の間に存在するエアを外部に排出するようにしても良い。また、図１６に示すように、２枚のフィルム１１を重ね合わせて、その重ね合わされた２枚のフィルム１１を巻取り部である巻芯１３に巻回される以前に圧縮し、その間に存在するエアを排出させるための一対の重合ローラ７２，７３を、コンデンサ素子１４の周面に付勢状態で当接する単一の加圧ローラ１９と別に設けても良い。 In the above-described embodiment, the film winding device 10 in which the single pressure roller 19 is in contact with the peripheral surface of the capacitor element 14 in the biased state has been described. However, as shown in FIG. In order to prevent air from being caught between the pressure roller 19 and the pressure roller 19, an auxiliary roller 71 made of a urethane rubber roller is brought into contact with the pressure roller 19 in a biased state. Two films 11 are passed in a state of being overlapped, and the film 11 that has been overlapped before being wound around the core 13 is compressed to discharge the air existing between the films 11 to the outside. May be. Further, as shown in FIG. 16, two films 11 are overlapped, and the two overlapped films 11 are compressed before being wound around a winding core 13 which is a winding portion, and exist between them. A pair of superposition rollers 72 and 73 for discharging the air to be discharged may be provided separately from the single pressure roller 19 that abuts against the peripheral surface of the capacitor element 14 in a biased state.

即ち、シワとフィルム１１間にエアが入るのは別問題とする考えもあり、当然、シワが入ればエアは入るのだが、シワが無くとも、巻芯１３の巻回速度を上昇させるとフィルム１１間にエアが入るという問題がある。エアが入る要因としては、フィルム１１の張力と加圧ローラ１９の圧力及び構造と考えられるけれども、加圧ローラ１９とともに重ね合わされたフィルム１１を圧縮する補助ローラ７１、又は一対の重合ローラ７２，７３を備えれば、巻芯１３に巻回される以前に重ね合わされたフィルム１１間のエアを効果的に排除できるので、加圧ローラ１９によりその全部をコンデンサ素子１４の外周面に確実に密着させることができる。よって、巻芯１３の回転速度を上昇させたとしても、フィルム１１間にエアが入り込むことを確実に回避するとともに、巻取られるフィルム間のズレを防止することができる。よって、生産性向上のために巻芯１３によるフィルム１１の巻回速度を更に上昇させることができ、より安定した性能のコンデンサ素子１４の製造効率を著しく向上させることができる。 That is, it is considered that air enters between the wrinkle and the film 11, and naturally air enters when the wrinkle enters, but even if there is no wrinkle, the film is increased when the winding speed of the core 13 is increased. There is a problem that air enters between 11. The factors that cause air to enter may be the tension of the film 11 and the pressure and structure of the pressure roller 19, but the auxiliary roller 71 that compresses the film 11 superimposed with the pressure roller 19 or the pair of superposition rollers 72 and 73. Since the air between the films 11 stacked before being wound around the core 13 can be effectively eliminated, the pressure roller 19 ensures that all of the air is securely adhered to the outer peripheral surface of the capacitor element 14. be able to. Therefore, even if the rotational speed of the winding core 13 is increased, it is possible to reliably avoid air from entering between the films 11 and to prevent a deviation between the wound films. Therefore, in order to improve productivity, the winding speed of the film 11 by the core 13 can be further increased, and the production efficiency of the capacitor element 14 having more stable performance can be significantly improved.

また、上述した実施の形態では、金属化フィルム１１として、ポリプロピレンからなる誘電体フィルム１１の片面に金属蒸着電極を形成することによって構成された、幅８０ｍｍ、厚さ３μｍのものを用いた例で説明したが、本発明はこれに限定されるものではなく、誘電体フィルム１１の両面に金属蒸着電極を形成した金属化フィルム１１とセパレータフィルム１１とを２枚１組として一対で用いたり、幅や厚みが異なる金属化フィルム１１を用いることも可能であり、金属蒸着電極を有しない帯状のフィルムであっても同様の効果が得られるものである。 Moreover, in embodiment mentioned above, it is the example using the thing of width 80mm and thickness 3micrometer comprised by forming the metal vapor deposition electrode in the single side | surface of the dielectric film 11 which consists of polypropylenes as the metallization film 11. FIG. Although described, this invention is not limited to this, The metallized film 11 which formed the metal vapor deposition electrode on both surfaces of the dielectric film 11, and the separator film 11 are used as a pair as a pair, or width It is also possible to use metallized films 11 with different thicknesses, and the same effect can be obtained even with a belt-like film having no metal vapor deposition electrode.

また、上述した実施の形態では、巻芯１３に対して移動可能に設けられたスライド板２１に加圧ローラ１９が回転自在に取付けられた例を示したが、コンデンサ素子１４の外径の変化にかかわらず、コンデンサ素子１４の周面を加圧ローラ１９が付勢する力を常に一定にしうる限り、加圧ローラ１９をスライド板２１に設けることを必要としない。例えば、図示しないが、揺動片の揺動端に加圧ローラを設け、揺動片を揺動付勢して加圧ローラをコンデンサ素子１４の周面に押しつけるようにしても良い。又は、加圧ローラ１９を動かすことなく、巻芯１３を動かす構造として加圧ローラ１９が付勢する力を常に一定に制御するようにしても良い。 In the above-described embodiment, the example in which the pressure roller 19 is rotatably attached to the slide plate 21 that is movably provided with respect to the core 13 has been described. However, the change in the outer diameter of the capacitor element 14 is shown. Regardless of this, it is not necessary to provide the pressure roller 19 on the slide plate 21 as long as the force applied by the pressure roller 19 to the peripheral surface of the capacitor element 14 can be kept constant. For example, although not shown, a pressure roller may be provided at the rocking end of the rocking piece, and the rocking piece may be rocked and pressed to press the pressure roller against the circumferential surface of the capacitor element 14. Alternatively, the force applied by the pressure roller 19 may be always controlled to be constant as a structure in which the core 13 is moved without moving the pressure roller 19.

また、上述した実施の形態では、ボルト３４を雌ねじ孔３１ａに螺合させることにより第２板材３２を第１板材３１に対向させた状態で固定する例を示したが、マグネットを用いて、所定の隙間を空けて第２板材３２を第１板材３１に対向させた状態で固定するようにしても良い。この場合その固定作業を容易にし得るものと考えられる。 In the above-described embodiment, the example in which the second plate 32 is fixed in a state of facing the first plate 31 by screwing the bolt 34 into the female screw hole 31a has been described. The second plate member 32 may be fixed in a state where the second plate member 32 is opposed to the first plate member 31 with a gap therebetween. In this case, it is considered that the fixing work can be facilitated.

更に、上述した実施の形態では、加圧ローラ１９を除く、ガイドローラ１６、ダンサーローラ１７及びアイドルローラ１８の全てがフィルム１１を浮上させて搬送するものである場合を例示したが、ガイドローラ１６、ダンサーローラ１７及びアイドルローラ１８のいずれか１つ又は２つがフィルム１１を浮上させて搬送するものであっても良く、フィルム１１を搬送経路から逸脱させない限り、これらのローラはフィルム１１を浮上させて搬送するものでなくても良い。 Furthermore, in the above-described embodiment, the case where the guide roller 16, the dancer roller 17 and the idle roller 18 except the pressure roller 19 are all those which float the film 11 and convey it is exemplified. Any one or two of the dancer roller 17 and the idle roller 18 may float and convey the film 11, and these rollers float the film 11 unless the film 11 deviates from the conveyance path. Need not be transported.

１０フィルムの巻取り装置
１１帯状フィルム
１２巻き出し軸（供給部）
１３巻芯（巻取り部）
１４コンデンサ素子
１６ガイドローラ（搬送ローラ）
１７ダンサーローラ（搬送ローラ）
１８アイドルローラ（搬送ローラ）
１９加圧ローラ（搬送ローラ）
２３筒部
２４，２５壁部材
６０フィルムのしわ取り装置
６１円柱状部材（第１部材）
６２第２部材
６２ｄ空気孔
７１補助ローラ
７２，７３重合ローラ DESCRIPTION OF SYMBOLS 10 Film winding apparatus 11 Band-shaped film 12 Unwinding axis | shaft (supply part)
13 Winding core (winding part)
14 Capacitor element 16 Guide roller (conveyance roller)
17 Dancer roller (conveyance roller)
18 Idle roller (conveyance roller)
19 Pressure roller (conveyance roller)
23 cylindrical part 24,25 wall member 60 film wrinkle removing device 61 columnar member (first member)
62 Second member 62d Air hole 71 Auxiliary roller 72, 73 Superposition roller

Claims

A first member (61) around which a strip-shaped film (11) moving in the longitudinal direction is wound;
A second member (62) sandwiching the film (11) together with the first member (61);
An air hole (62d) formed in the second member (62);
Air blowing means for blowing air from the air holes (62d) to the belt-like film (11) and pressing the belt-like film (11) against the first member (61),
The first member (61) is a non-rotatable cylindrical member having a circular cross section or a non-movable rod-shaped member having a semicircular or fan-shaped cross section,
The film wrinkle removing apparatus, wherein the second member (62) includes a cover (62a) having an inner surface curved in a semicircular shape in cross section.

2. The film wrinkle removing apparatus according to claim 1, wherein the surface of the first member (61) facing the film (11) is roughened.

A film tension adjusting method using the film wrinkle removing device (60) according to claim 1 or 2 ,
Air is blown from the air holes (62d) onto the belt-like film (11) which is wound around the first member (61) and moves in the longitudinal direction, and the belt-like film (11 ) is pressed against the first member (61) .
The film (11) is tensioned by the sliding resistance of the film (11) that is pressed against and slides on the first member (61) ,
A method for adjusting the tension of the film, comprising controlling the tension of the film (11) by a pressure of air blown onto the film (11).

A wrinkle removing method for a film using the film wrinkle removing device (60) according to claim 1 or 2 ,
Air is blown from the air holes (62d) onto the belt-like film (11) which is wound around the first member (61) and moves in the longitudinal direction, and the belt-like film (11 ) is pressed against the first member (61) .
A wrinkle removing method for a film, characterized in that the wrinkles of the film (11) are stretched by air that is blown onto the film (11) and flows on the surface of the film (11).

A supply section (12) for sending out a film (11) wound around a bobbin or reel;
A winding unit (13) for winding the film (11) fed from the supply unit (12);
A plurality of transport rollers (16-19) provided in a film transport path between the supply unit (12) and the winding unit (13);
A film winding apparatus comprising: the wrinkling device (60) according to claim 1 or 2 provided in the vicinity of the winding portion (13).

A pair of supply sections (12) is provided, and the winding section (13) is configured to overlap and wind the films (11) respectively supplied from the pair of supply sections (12), and a plurality of transport rollers (16-19) includes a pressure roller (19) in contact with the circumferential surface of the capacitor element (14) made of the film (11) wound around the winding portion (13) in a biased state,
An auxiliary roller (71) or the pressure roller (19) for compressing the two superimposed films (11) together with the pressure roller (19) before being wound around the winding portion (13); The film according to claim 5, further comprising a pair of superposition rollers (72, 73) for compressing the two sheets (11), which are provided separately and overlapped, before being wound around the winding part (13). Winding device.

All or a part of the plurality of transport rollers (16 to 19) includes a cylindrical portion (23) configured to be able to float the film (11) hung by air blown from the outer periphery, and the cylindrical portion (23). The film winding device according to claim 6, further comprising wall members (24, 25) that are provided on both sides and restrict movement in the width direction of the film (11) that is hung around and floated on the cylindrical portion (23). .