JP5218417B2 - Nip device and nip method - Google Patents

Nip device and nip method Download PDF

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JP5218417B2
JP5218417B2 JP2009539001A JP2009539001A JP5218417B2 JP 5218417 B2 JP5218417 B2 JP 5218417B2 JP 2009539001 A JP2009539001 A JP 2009539001A JP 2009539001 A JP2009539001 A JP 2009539001A JP 5218417 B2 JP5218417 B2 JP 5218417B2
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gas
support member
nip
film
introduction pipe
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JPWO2009057454A1 (en
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航 水野
浩司 尾▲崎▼
和浩 福田
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Konica Minolta Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B65H18/103—Reel-to-reel type web winding and unwinding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/171—Physical features of handled article or web
    • B65H2701/1719—Photosensitive, e.g. exposure, photographic or phosphor

Description

本発明は帯状のフィルム等の被処理物を、ロール等の支持部材に押圧するニップ装置およびニップ方法に関する。   The present invention relates to a nip device and a nip method for pressing an object to be processed such as a belt-like film against a support member such as a roll.

帯状のフィルムを回転するロールに巻掛けて搬送するニップ装置において、フィルムがロールに進入する際に空気の一部がフィルムに閉じこめられてそこに気泡が発生することがあり、その部分ではフィルムが膨らむことになる。フィルムに後処理する工程、例えば塗布やプラズマ処理を行うときに、フィルムに膨らみ部があると後処理工程との間隙が変化し、均一な後処理を行うことができないという問題が発生する。   In a nip device that wraps and conveys a belt-shaped film on a rotating roll, when the film enters the roll, a part of the air may be trapped in the film and bubbles may be generated there. It will swell. When a film is post-processed, for example, when coating or plasma processing is performed, if the film has a bulge, the gap between the film and the post-process changes, which causes a problem that uniform post-processing cannot be performed.

このような問題に対し、ロール（支持ロールという）に巻掛けされたフィルムの上から弾性を持ったロール（弾性ロールという）を適度な力で押してつけて、フィルムを支持ロールに密着させる技術が知られている。   For such a problem, there is a technique in which an elastic roll (called an elastic roll) is pressed from above a film wound around a roll (called a support roll) with an appropriate force to adhere the film to the support roll. Are known.

しかし、弾性ロールを用いた技術ではフィルムに弾性ロールが接触しているため弾性ロールの汚れがフィルムに転写される。また、弾性ロールは支持ロールの外形に沿って変形しながら回転するためフィルムと弾性ロール表面間に微視的なすべりが起こり、フィルムにすべり傷が惹起されるなどの欠点を有している。   However, in the technique using an elastic roll, since the elastic roll is in contact with the film, dirt on the elastic roll is transferred to the film. Further, since the elastic roll rotates while deforming along the outer shape of the support roll, there is a disadvantage that microscopic slip occurs between the surface of the film and the elastic roll, and a slip damage is caused on the film.

このような汚れの転写や、すべり傷を防止するために、例えば特許文献１では、弾性ロールを用いず、支持ロールに巻掛された帯状のフィルムの上から圧縮空気を噴射させて、フィルムと支持ロールとの密着性を向上させる技術が開示されている。   In order to prevent such transfer of dirt and slip damage, for example, in Patent Document 1, without using an elastic roll, compressed air is jetted from a strip-shaped film wound around a support roll, A technique for improving the adhesion to a support roll is disclosed.

また、特許文献２には、支持ロールの表面に微細な孔を無数に穿孔し、この孔から空気等を用いて吸引することにより、支持ロールとフィルムとの密着性を向上させる技術が開示されている。
特開昭５９−９２８５６号公報 特開２００３−１７１０４４号公報 Patent Document 2 discloses a technique for improving the adhesion between a support roll and a film by perforating innumerable fine holes on the surface of the support roll and sucking air from the holes using air or the like. ing.
JP 59-92856 A JP 2003-171044 A

しかし、上記特許文献１に開示された技術は、圧縮空気はフィルムに対し外気圧より高い気圧を維持しながら常に噴射し続ける必要がありその消費量は多大である。もし圧縮する際に使用する気体が、窒素ガスなどコストがかかる気体を使用しなければならないときは、ガスのコスト代が増大し有用な手段とは言えない。   However, in the technique disclosed in the above-mentioned Patent Document 1, it is necessary to continuously inject compressed air while maintaining a pressure higher than the external pressure with respect to the film, and the consumption is great. If the gas to be used for compression must be a costly gas such as nitrogen gas, the cost of the gas increases, which is not a useful means.

また、特許文献２に開示された技術では、無数の微細な孔の縁によりフィルムの裏面に傷が発生するなどの問題が発生する。   Moreover, in the technique disclosed in Patent Document 2, problems such as scratches occur on the back surface of the film due to the edges of countless fine holes.

本発明の目的は、被処理物（帯状のフィルム等）を支持体（ロール等）に押圧する際に生じる傷等が発生せず、使用するガスの消費量を抑制するニップ装置およびニップ方法を提供することである。   An object of the present invention is to provide a nip device and a nip method that suppresses the consumption of gas to be used without causing scratches or the like that occur when a workpiece (such as a belt-like film) is pressed against a support (roll or the like). Is to provide.

上記目的は、下記構成により達成できる。   The above object can be achieved by the following configuration.

１．支持部材上に載置された被処理物の表面に、ガスを吹き付けることで、前記被処理物を前記支持部材に押圧するニップ装置において、
前記被処理物を挟んで前記支持部材と対向する位置に噴射口を有するガス噴出手段を有し、
前記ガス噴射手段は、ガスを前記噴射口まで導入するガス導入管と、
前記ガス導入管と繋がって、前記ガス導入管の断面積よりも大きい断面積を有し、前記噴出口を構成するガス貯留室と、
前記噴出口と前記支持部材との間隙の近傍からガスを吸引して排出するガス排出手段とを有することを特徴とするニップ装置。 1. In a nip device that presses the object to be processed against the support member by blowing gas on the surface of the object to be processed placed on the support member.
Having gas ejection means having an ejection port at a position facing the support member across the object to be treated;
The gas injection means includes a gas introduction pipe for introducing gas to the injection port;
A gas storage chamber connected to the gas introduction pipe, having a cross-sectional area larger than the cross-sectional area of the gas introduction pipe, and constituting the ejection port ;
A nip device comprising gas discharge means for sucking and discharging gas from the vicinity of a gap between the jet port and the support member .

２．前記ガス貯留室は、外気圧よりも高い気圧を有するガスを貯留することを特徴とする１に記載のニップ装置。   2. 2. The nip device according to 1, wherein the gas storage chamber stores a gas having a pressure higher than an external pressure.

３．前記ガス排出手段の吸引量が、前記ガス噴出手段の噴出量よりも大きいことを特徴とする１または２に記載のニップ装置。 3. The nip device according to 1 or 2 , wherein the suction amount of the gas discharge means is larger than the discharge amount of the gas discharge means .

４．前記支持部材が回転するロールであり、前記被処理物が帯状のフィルムであって、前記フィルムが前記ロールに巻掛けされていることを特徴とする１〜３のいずれかに記載のニップ装置。   4). The nip device according to any one of claims 1 to 3, wherein the support member is a rotating roll, the object to be processed is a belt-like film, and the film is wound around the roll.

５．支持部材上に載置された被処理物の表面に、ガスを吹き付けることで、前記被処理物を前記支持部材に押圧するニップ方法において、
所定の径を有するガス導入管よりガスを導入し、
前記ガス導入管と繋がって、前記ガス導入管の断面積よりも大きい断面積を有し、噴出口を構成するガス貯留室から、ガスを噴出し、
前記噴出口と前記支持部材との間隙の近傍からガスを吸引して排出することを特徴とするニップ方法。 5. In a nip method of pressing the object to be processed against the support member by blowing gas on the surface of the object to be processed placed on the support member,
Gas is introduced from a gas introduction pipe having a predetermined diameter,
Connected to the gas introduction pipe, having a cross-sectional area larger than the cross-sectional area of the gas introduction pipe, from the gas storage chamber constituting the jet outlet ,
A nip method comprising sucking and discharging gas from the vicinity of a gap between the jet port and the support member .

本発明によれば、外気圧よりも高い気圧を有するガスを貯留するガス貯留室をフィルムに対向する位置に設けているので、少ないガスの消費量で帯状のフィルムをロールに押圧して搬送することができる。   According to the present invention, since the gas storage chamber for storing the gas having a pressure higher than the external pressure is provided at the position facing the film, the belt-shaped film is pressed against the roll and conveyed with a small amount of gas consumption. be able to.

本発明に係るニップ装置１の構成を示す図である。It is a figure which shows the structure of the nip apparatus 1 which concerns on this invention.

符号の説明Explanation of symbols

１ ニップ装置
２ フィルム
３ ロール
４ ガス噴射手段
５ 噴射ノズル
６ 壁囲
７ ガス貯留室
８ ガス排出手段DESCRIPTION OF SYMBOLS 1 Nip apparatus 2 Film 3 Roll 4 Gas injection means 5 Injection nozzle 6 Wall surround 7 Gas storage chamber 8 Gas discharge means

本発明の実施の形態を説明する。なお、本発明を図示の実施の形態に基づいて説明するが、本発明は該実施の形態に限らない。また、以下の、本発明の実施の形態における断定的な説明は、ベストモードを示すものであって、本発明の用語の意義や技術的範囲を限定するものではない。   An embodiment of the present invention will be described. In addition, although this invention is demonstrated based on embodiment of illustration, this invention is not restricted to this embodiment. In addition, the following assertive description in the embodiment of the present invention shows the best mode, and does not limit the meaning or technical scope of the terms of the present invention.

以下、図に基づき本発明の実施の形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明に係るニップ装置１の構成を示す図である。図中、ニップ装置１は、帯状のフィルム２を巻掛けするロール３と、ロール３上のフィルム２にガスを吹き付けるガス噴射手段４とを有している。   FIG. 1 is a diagram showing a configuration of a nip device 1 according to the present invention. In the figure, the nip device 1 has a roll 3 around which a belt-like film 2 is wound, and a gas injection means 4 for blowing gas onto the film 2 on the roll 3.

ガス噴射手段４は、フィルム２に対向する位置にガス導入管としての噴射ノズル５が備えられ、噴射ノズル５の先端部には、噴射ノズル５に連結して、フィルム２の表面の近傍まで伸びた壁囲６が設けられている。壁囲６の開口径は、噴射ノズル５の管径よりも大きく、ガス貯留室７を構成している。ガス貯留室の径（断面積）を、ガス導入管の径（断面積）より大きくし、しかし、完全に開放はしないことによって、高圧のガスを、ノズルの場合より広い面積に噴射することが可能となり、ガス量を節約しながらも高いニップ効果を得ることが可能となる。つまり、ガス流の粒径（断面積）を、貯留室で一端広げるが、圧力はある程度高いまま維持することができるように構成したものである。   The gas injection means 4 is provided with an injection nozzle 5 as a gas introduction pipe at a position facing the film 2, and the tip of the injection nozzle 5 is connected to the injection nozzle 5 and extends to the vicinity of the surface of the film 2. A wall 6 is provided. The opening diameter of the wall wall 6 is larger than the tube diameter of the injection nozzle 5 and constitutes the gas storage chamber 7. By making the diameter (cross-sectional area) of the gas storage chamber larger than the diameter (cross-sectional area) of the gas introduction pipe, it is possible to inject high-pressure gas over a larger area than in the case of the nozzle by not opening it completely. This makes it possible to obtain a high nip effect while saving the amount of gas. That is, the particle size (cross-sectional area) of the gas flow is expanded in the storage chamber at one end, but the pressure can be kept high to some extent.

ガス貯留室はガス噴射口を構成しており、フィルム２上にガスを噴出して、被処理物であるフィルム２をロール３に押圧することができる。尚、ここでは、噴射ノズル５と壁囲６は別部材としたが、これらは一体成形されていてもよい。   The gas storage chamber constitutes a gas injection port, and gas can be ejected onto the film 2 to press the film 2 as the object to be processed against the roll 3. Here, the injection nozzle 5 and the wall 6 are separate members, but they may be integrally formed.

ロール３は矢印Ｘ方向に回転し、帯状のフィルムは矢印Ｙ方向に移動している。そして、この壁囲６と、噴射ノズルの端面と、フィルム２の表面で囲まれた空間に、噴射手段から噴射されたガスを一旦貯留することとなる。この空間がガス貯留室７である。ガス貯留室７内にはガス噴射手段４から吹き出された、外気圧よりも高い気圧を有するガスＧが貯留される。高圧のガスＧは、壁囲６とフィルム２との間隙Ｓからガス貯留室７の外に排出される。ガス貯留室７の外に排出されたガスＧは、そのままではニップ装置１内にガスＧが充満し、装置から漏れたガスＧは使用するガスによっては人体に悪い影響を与えるという恐れが発生する。そのために、間隙Ｓの近傍にガスＧを所定の部位に、吸引して排出するガス排出手段８を設け、ニップ装置１内に余分なガスＧが飛散しないようにしている。このときのガスの吸引量は、ガス噴出手段の噴出量よりも大きい方が好ましい。   The roll 3 rotates in the direction of the arrow X, and the belt-like film moves in the direction of the arrow Y. The gas jetted from the jetting means is temporarily stored in the space surrounded by the wall 6, the end face of the jet nozzle, and the surface of the film 2. This space is the gas storage chamber 7. In the gas storage chamber 7, a gas G blown out from the gas injection means 4 and having an atmospheric pressure higher than the external atmospheric pressure is stored. The high-pressure gas G is discharged out of the gas storage chamber 7 through the gap S between the wall 6 and the film 2. If the gas G discharged out of the gas storage chamber 7 is left as it is, the gas G fills the nip device 1, and the gas G leaking from the device may adversely affect the human body depending on the gas used. . For this purpose, a gas discharge means 8 for sucking and discharging the gas G at a predetermined site is provided in the vicinity of the gap S so that excess gas G is not scattered in the nip device 1. At this time, the gas suction amount is preferably larger than the ejection amount of the gas ejection means.

また、ガス噴射手段４には、ガスＧが通過する経路にガスＧ内の不純物を取り除くためのフィルタＦが設けられている。本実施の形態ではガスＧを圧縮するコンプレサー９とガス噴射手段４との中間に設けている。
尚、この図は、帯状のフィルムの１ケ所を押圧するガス噴射手段としたが、帯状のフィルムの幅手方向（図面の手間から奥方向）に、複数のガス噴射手段を有し、フィルムの幅全体をラインで押圧するようにすることもできる。The gas injection means 4 is provided with a filter F for removing impurities in the gas G in a path through which the gas G passes. In this embodiment, it is provided between the compressor 9 for compressing the gas G and the gas injection means 4.
In addition, although this figure was taken as the gas injection means which presses one place of a strip | belt-shaped film, it has several gas injection | spreading means in the width direction (from the effort of drawing to the back direction) of a strip | belt-shaped film, It is also possible to press the entire width with a line.

また、フィルムの幅全体にライン状にガスを吹き付けるスリット状のガス噴出手段とすることもできる。このときのガス貯留室の噴射口（ガス貯留室の断面積）は、スリットの先端開口部（ガス導入管の断面積）よりも面積が広いことが必要である。   Moreover, it can also be set as the slit-shaped gas ejection means which sprays gas in the shape of a line over the whole width | variety of a film. At this time, the injection port of the gas storage chamber (the cross-sectional area of the gas storage chamber) needs to have a larger area than the tip opening of the slit (the cross-sectional area of the gas introduction pipe).

さらに、同じロール上においてフィルムが押圧された後に塗布やＵＶ照射、プラズマ処理などの後処理を施す工程を設けても良い。   Furthermore, after the film is pressed on the same roll, a step of performing post-treatment such as coating, UV irradiation, plasma treatment, or the like may be provided.

ここで、ガス噴射手段４から噴射されるガス圧ＧＦ（ｈＰａ）が、本発明のガス貯留室７を設けた方式の場合と、設けない従来の方式の場合と、どの位差があるかどうかを実験的に求めた。その結果を以下に示す。   Here, how much difference is there in the gas pressure GF (hPa) injected from the gas injection means 4 between the case where the gas storage chamber 7 of the present invention is provided and the case where the conventional method is not provided? Was experimentally determined. The results are shown below.

フィルム２の上面と壁囲６との間隙をＳ（ｍｍ）、フィルム２の幅をＷ（ｍｍ）、フィルム２が巻き取られる巻き取り速度をｖ（ｍｍ／ｓｅｃ）とすると、
Ｓ＝１ｍｍ
Ｗ＝１０００ｍｍ
ｖ＝５００ｍｍ／ＳＥＣ
としたときにガス貯留室７を用いた本発明の方式では、ＧＦ＝１２００ｈＰａであった。
また、ガス貯留室７を設けない従来の方式では、ＧＦ＝２０００ｈＰａであった。When the gap between the upper surface of the film 2 and the wall 6 is S (mm), the width of the film 2 is W (mm), and the winding speed at which the film 2 is wound is v (mm / sec),
S = 1mm
W = 1000mm
v = 500mm / SEC
In the method of the present invention using the gas storage chamber 7, GF = 1200 hPa.
In the conventional method in which the gas storage chamber 7 is not provided, GF = 2000 hPa.

すなわち、ガス貯留室７を設けた本発明のニップ装置では、ガス圧ＧＦを大気圧１０１３（ｈＰａ）に対して約１．１倍の圧にするだけでフィルム２にすべり傷が発生せず、ロール３に押圧して搬送することができた。これは、ガス貯留室７内にある気体が、フィルム面上を均一に押圧しているということを示している。   That is, in the nip device of the present invention provided with the gas storage chamber 7, the film 2 is not slipped only by making the gas pressure GF about 1.1 times the atmospheric pressure 1013 (hPa), It was able to be conveyed while being pressed against the roll 3. This has shown that the gas in the gas storage chamber 7 is pressing on the film surface uniformly.

しかし、従来方式ではガス圧ＧＦを大気圧より約２倍にしないと、上記性能を得ることができなかった。   However, in the conventional method, the above-described performance cannot be obtained unless the gas pressure GF is set to about twice the atmospheric pressure.

このように、外気圧よりも高い気圧を有するガスを貯留するガス貯留室７を有する本発明のニップ装置は、ガスの使用を少なくしても帯状のフィルムをロールに押圧して搬送することができる。   As described above, the nip device of the present invention having the gas storage chamber 7 that stores a gas having a pressure higher than the external pressure can convey the belt-shaped film against the roll even if the use of the gas is reduced. it can.

Claims (5)

支持部材上に載置された被処理物の表面に、ガスを吹き付けることで、前記被処理物を前記支持部材に押圧するニップ装置において、
前記被処理物を挟んで前記支持部材と対向する位置に噴射口を有するガス噴出手段を有し、
前記ガス噴射手段は、ガスを前記噴射口まで導入するガス導入管と、
前記ガス導入管と繋がって、前記ガス導入管の断面積よりも大きい断面積を有し、前記噴出口を構成するガス貯留室と、
前記噴出口と前記支持部材との間隙の近傍からガスを吸引して排出するガス排出手段とを有することを特徴とするニップ装置。 In a nip device that presses the object to be processed against the support member by blowing gas on the surface of the object to be processed placed on the support member.
Having gas ejection means having an ejection port at a position facing the support member across the object to be treated;
The gas injection means includes a gas introduction pipe for introducing gas to the injection port;
A gas storage chamber connected to the gas introduction pipe, having a cross-sectional area larger than the cross-sectional area of the gas introduction pipe, and constituting the ejection port ;
A nip device comprising gas discharge means for sucking and discharging gas from the vicinity of a gap between the jet port and the support member . 前記ガス貯留室は、外気圧よりも高い気圧を有するガスを貯留することを特徴とする請求項１に記載のニップ装置。 The nip device according to claim 1 , wherein the gas storage chamber stores a gas having an air pressure higher than an external air pressure. 前記ガス排出手段の吸引量が、前記ガス噴出手段の噴出量よりも大きいことを特徴とする請求項１又は２に記載のニップ装置。 The nip device according to claim 1 or 2 , wherein a suction amount of the gas discharge means is larger than an ejection amount of the gas ejection means . 前記支持部材が回転するロールであり、前記被処理物が帯状のフィルムであって、前記フィルムが前記ロールに巻掛けされていることを特徴とする請求項１〜３のいずれか１項に記載のニップ装置。 The said support member is a roll which rotates, The said to-be-processed object is a strip | belt-shaped film, Comprising: The said film is wound around the said roll, The any one of Claims 1-3 characterized by the above-mentioned. Nip device. 支持部材上に載置された被処理物の表面に、ガスを吹き付けることで、前記被処理物を前記支持部材に押圧するニップ方法において、
所定の径を有するガス導入管よりガスを導入し、
前記ガス導入管と繋がって、前記ガス導入管の断面積よりも大きい断面積を有し、噴出口を構成するガス貯留室から、ガスを噴出し、
前記噴出口と前記支持部材との間隙の近傍からガスを吸引して排出することを特徴とするニップ方法。 In a nip method of pressing the object to be processed against the support member by blowing gas on the surface of the object to be processed placed on the support member,
Gas is introduced from a gas introduction pipe having a predetermined diameter,
Connected to the gas introduction pipe, having a cross-sectional area larger than the cross-sectional area of the gas introduction pipe, from the gas storage chamber constituting the jet outlet ,
A nip method comprising sucking and discharging gas from the vicinity of a gap between the jet port and the support member .
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