JPH01209257A - Web vibration absorbing device - Google Patents
Web vibration absorbing deviceInfo
- Publication number
- JPH01209257A JPH01209257A JP3202088A JP3202088A JPH01209257A JP H01209257 A JPH01209257 A JP H01209257A JP 3202088 A JP3202088 A JP 3202088A JP 3202088 A JP3202088 A JP 3202088A JP H01209257 A JPH01209257 A JP H01209257A
- Authority
- JP
- Japan
- Prior art keywords
- web
- cylinder
- gas
- vibration
- absorbing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000037303 wrinkles Effects 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 abstract 1
- 235000015246 common arrowhead Nutrition 0.000 abstract 1
- 230000000644 propagated effect Effects 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Advancing Webs (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は走行する可視性帯状長尺支持体（以下ウェブと
いう）に塗布液を塗布し搬送する製造工程に関し、詳し
くは気体搬送におけるウェブの振動吸収装置に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a manufacturing process of applying a coating liquid to a traveling visible strip-shaped elongated support (hereinafter referred to as a web) and conveying the coating liquid. It relates to a vibration absorption device.
［従来の技術］
従来、プラスチックフィルム、紙、金属シート及びそれ
らの塗工物の製造工程において、ウェブの振動を吸収す
るためには、ローラ又はドラム等に該ウェブを抱かせて
搬送する方法がとられてきた。この方法は片面づつ塗布
する場合、すなはち塗布の反対面をこれらローラあるい
はドラムに接触しても良い場合には有効であるが、両面
同時塗布のごとくローラ、ドラム等に対して無接触搬送
が必要な場合には適用することが出来ない。[Prior Art] Conventionally, in the manufacturing process of plastic films, paper, metal sheets, and coated materials thereof, in order to absorb the vibrations of the web, there has been a method of conveying the web by holding it around rollers or drums, etc. It has been taken. This method is effective when coating one side at a time, that is, when the opposite side to be coated can come into contact with these rollers or drums, but it is effective when the coating is carried out without contact with rollers or drums, as in simultaneous coating on both sides. cannot be applied when necessary.
近時、生産性向上、コスト低減等への要請から両面無接
触搬送の必要性が高まってきている。In recent years, the need for double-sided non-contact conveyance has been increasing due to demands for improved productivity and cost reduction.
このような無接触搬送においては種々な原因からウェブ
搬送において振動が起こりうる。例えば塗布にひきつづ
いて該塗工物の乾燥を行う場合には乾燥風による振動が
おこる。又このような無接触両面搬送の場合の塗布方式
としては、一般にエクストルージョン方式、特にスライ
ドホッパー装置が使用されることが多いが、このような
ビード塗布方法の場合ウェブの振動は塗布品質に大きな
影響を与える。このように無接触両面搬送における厳し
いウェブの振動吸収についてはまだ満足す哀きウェブ振
動吸収装置は開発されてない。In such non-contact conveyance, vibrations may occur during web conveyance due to various reasons. For example, when drying the coated material following application, vibrations occur due to the drying air. In addition, as a coating method for such non-contact double-sided conveyance, an extrusion method is generally used, especially a slide hopper device, but in the case of such a bead coating method, vibration of the web has a large effect on coating quality. influence As described above, no web vibration absorbing device has yet been developed that satisfies the severe vibration absorption of the web during non-contact double-sided conveyance.
［発明が解決しようとする問題点」
上記のごとき問題点に対して、本発明の目的は走行する
ウェブを気体により無接触搬送する場合、ウェブの振動
を効果的に吸収し、かつ、しわの発生を抑えることの出
来るウェブ振動吸収装置を低コストで提供することであ
る。[Problems to be Solved by the Invention] In order to solve the above-mentioned problems, the purpose of the present invention is to effectively absorb web vibrations and eliminate wrinkles when a running web is conveyed by gas without contact. To provide a web vibration absorbing device capable of suppressing the occurrence of vibration at low cost.
［問題点を解決するための手段１
本発明の上記目的は、気体によりウェブを搬送させる装
置より発生するウェブ振動を吸収する装置であって、ウ
ェブを１つ以上の気体噴出円筒に抱かせて搬送させる事
を特徴とするウェブ振動吸収装置により達成される。[Means for Solving the Problems 1] The above-mentioned object of the present invention is to provide a device for absorbing web vibrations generated by a device for transporting a web using gas, the web being held in one or more gas jetting cylinders. This is achieved by a web vibration absorbing device that is characterized by conveyance.
また、上記気体噴出円筒への供給圧が２００〜８００ｍ
ｍａｑ間のある圧力に保持されるように、気体噴出孔径
及び円筒の肉厚を選定し、さらに上記気体噴出円筒への
ウェブ導入部及び導出部に幅手方向と平行に堰を設ける
事が本発明の目的達成に有効である。In addition, the supply pressure to the gas jetting cylinder is 200 to 800m.
It is essential to select the diameter of the gas ejection hole and the wall thickness of the cylinder so that the pressure is maintained at a certain pressure between maq, and to provide a weir parallel to the width direction at the web introduction and outlet parts to the gas ejection cylinder. It is effective in achieving the purpose of the invention.
以下本発明の装置につき図により具体的に説明する。第
１図は本発明の実施態様の１例を示す説明図である。振
動しているウェブ１が矢印方向に進行し、気体噴出孔を
有する気体噴出円筒２及び続いて同２′を図に示すごと
く抱きながら搬送させる事により振動を消すことができ
る。尚該気体吹出円筒は、必要に応じて１つ以上設ける
ことができる。但し本構成のままでは上記円筒からウェ
ブとの間に噴き出された気体が円筒から逃げる際に急激
に拡散されるために、この円筒からの排風自体によるウ
ェブ振動が発生してしまう。これに対しては噴出円筒の
１例の断面図である第２図中の堰３を円筒部のウェブ導
入部５、導出部６にウェブの幅手方向と平行に設けるこ
とにより円筒自体から発生するウェブ振動を打ち消し、
かつ振動を上流側に伝播させない効果を更に高めること
ができる。この場合ウェブと堰との間隔りは３ｍｍ以下
が望ましい。堰３は上記円筒からウェブとの間に噴き出
された気体が円筒から逃げる際の抵抗となり、ウェブ長
手方向への排風量が大幅に減少されかつ整流される。ま
た円筒とウェブの間をより密閉系（静圧系）に近付ける
ため、ウェブと円筒間のクツション圧を安定にし、ウェ
ブ張力の変動に対する浮上量変化も軽減し、円滑な搬送
を可能とする。The apparatus of the present invention will be specifically explained below with reference to the drawings. FIG. 1 is an explanatory diagram showing one example of an embodiment of the present invention. The vibration can be eliminated by moving the vibrating web 1 in the direction of the arrow and carrying it while holding the gas jetting cylinder 2 having the gas jetting holes and then the cylinder 2' as shown in the figure. Note that one or more gas blowing cylinders may be provided as necessary. However, with this configuration as it is, the gas ejected between the cylinder and the web is rapidly diffused when escaping from the cylinder, so that web vibrations occur due to the air discharged from the cylinder itself. To deal with this problem, the weir 3 shown in Fig. 2, which is a cross-sectional view of an example of the ejection cylinder, is provided in the web introduction part 5 and the ejection part 6 of the cylinder part in parallel with the width direction of the web. cancels the web vibrations that occur,
Moreover, the effect of preventing vibrations from propagating to the upstream side can be further enhanced. In this case, the distance between the web and the weir is preferably 3 mm or less. The weir 3 acts as a resistance when the gas ejected between the cylinder and the web escapes from the cylinder, and the amount of air discharged in the longitudinal direction of the web is significantly reduced and rectified. Furthermore, in order to make the space between the cylinder and the web closer to a closed system (static pressure system), the cushion pressure between the web and the cylinder is stabilized, and changes in flying height due to fluctuations in web tension are reduced, allowing for smooth conveyance.
本発明者等は上記のごとく、種々検討の結果、ウェブを
円弧状に保持することにより、ウェブの剛性が向上して
振動しずらくなる事に加え、気体噴出円筒への供給圧が
２００〜８００ｍｍａｑ間のある圧力に保持されるよう
に気体噴出孔径、円筒の肉厚を選定したため、円筒から
の噴き出し噴流の風速は小さくなり、結果的にウェブの
浮上量は少なくなって、該円筒とウェブ間のクツション
圧は安定し、非常に剛性の高い空気層が形成され、ウェ
ブの振動を吸収する形になっている。更に堰を設けた事
によりウェブと堰から噴出する流れを整流し、気体噴出
円筒自体からの排出噴流の乱れによるウェブの振動が抑
えられることを見出だしたのである。As mentioned above, as a result of various studies, the present inventors have found that by holding the web in an arcuate shape, the rigidity of the web is improved and it is less likely to vibrate, and the supply pressure to the gas jetting cylinder is Since the diameter of the gas nozzle hole and the wall thickness of the cylinder were selected so that the pressure was maintained at a certain pressure of 800 mmaq, the wind speed of the jet stream ejected from the cylinder was reduced, and as a result, the flying height of the web was reduced, and the cylinder and web were The cushioning pressure in between is stable and a very rigid air layer is formed, which absorbs web vibrations. Furthermore, they discovered that by providing a weir, the flow ejected from the web and weir can be rectified, and vibrations of the web caused by turbulence in the discharge jet from the gas ejection cylinder itself can be suppressed.
該円筒の外径は１００〜７００ｍｍΦが好ましい。また
ウェブに対する抱き角は９０°以上とることが好ましく
、さらに好ましくは１８０°以上である。The outer diameter of the cylinder is preferably 100 to 700 mmΦ. Further, the angle of embrace with respect to the web is preferably 90° or more, more preferably 180° or more.
円筒への供給圧が２００〜８００ｍｍａｑに保たれるよ
うにするには開孔部全体の平均開孔面積率をＰとすると
Ｐは１％以下とし、好ましくは０．１％〜０．８％にす
る必要がある。In order to maintain the supply pressure to the cylinder at 200 to 800 mmaq, P should be 1% or less, preferably 0.1% to 0.8%, where P is the average pore area ratio of the entire pore area. It is necessary to
また円筒の肉厚は加工し易さから５〜２０ｍｍ程度にと
ることが好ましい。Further, the wall thickness of the cylinder is preferably set to about 5 to 20 mm for ease of processing.
また円筒への供給圧が２００〜８００ｍｍａｑに保たれ
るならば第４図のごとく目の細かい金網を被せた形でも
効果は変わらない。本円筒のかわりに第３図のごとくつ
り鐘状であっても効果は変わらない。Furthermore, if the supply pressure to the cylinder is maintained at 200 to 800 mmaq, the effect remains the same even if the cylinder is covered with a fine wire mesh as shown in FIG. Even if the cylinder is replaced by a bell-shaped one as shown in Figure 3, the effect remains the same.
つまり本条件構成が達成できれば、気体噴出円筒の形状
にこだわることなく効果は発暉される。また開孔断面形
状は、例えば本装置を塗布直後に設置した場合等で塗布
面が噴出気体により表面に吹きあれむらが発生するおそ
れがある時は、該円筒への供給圧が２００〜８００ｍｍ
ａｑ間のある圧力に保たれる条件が満たされる範囲内で
噴出孔の１断面図である第５図に示すごとく噴出孔にポ
ケット８を設けることにより、その噴出速度を抑え、該
むらの発生を防止することが出来る。In other words, if this condition configuration can be achieved, the effect can be achieved regardless of the shape of the gas jetting cylinder. In addition, the cross-sectional shape of the opening should be adjusted so that the supply pressure to the cylinder is between 200 and 800 mm when there is a risk that unevenness may occur on the coated surface due to the ejected gas, such as when this device is installed immediately after coating.
By providing a pocket 8 in the nozzle hole as shown in FIG. 5, which is a cross-sectional view of the nozzle hole, within the range where the condition of maintaining a certain pressure between can be prevented.
第２図に示す堰３とウェブｌとの距離すなはち両者の間
隙りが３ｍｍ以内であれば堰の断面形状は三角形、四角
形、円形、半円形、多角形等いずれの形状であっても良
く、大きさも大小を問わない。As long as the distance between the weir 3 and the web l shown in Fig. 2 is within 3 mm, the cross-sectional shape of the weir may be triangular, square, circular, semicircular, polygonal, etc. Good, it doesn't matter how big or small it is.
またウェブ幅手に一様でなく切り欠きが入っていても効
果は変わらない。Furthermore, even if the width of the web is not uniform and has notches, the effect remains the same.
該円筒は上記条件が保て−るようであれば円筒度の精度
はさほど必要ではなく、市販のＰＶＣパイプで良く容易
に孔加工出来、低コストで製作される事も特徴の１つと
いうことが出来る。As long as the above conditions are maintained, the cylinder does not require much precision in cylindricity, and one of its features is that it can be easily drilled with commercially available PVC pipe, and it can be manufactured at low cost. I can do it.
［実施例］ 以下実施例により本発明の効果を具体的に説明する。[Example] The effects of the present invention will be specifically explained below using Examples.
第１図において、ウェブｌは矢印の方向に搬送される。In FIG. 1, the web l is conveyed in the direction of the arrow.
４は乾燥装置であり、ここでウェブは振動される。つい
で該ウェブは気体噴出円筒２および２′に抱かれて搬送
され、振動が吸収される。4 is a drying device in which the web is vibrated. The web is then carried around the gas jet cylinders 2 and 2' and the vibrations are absorbed.
このウェブの振動の強度を第１図のＡ点及びＢ点におい
て、レーザー変位形で測定し、更に周波数分析により振
動エネルギーを測定した。The strength of vibration of this web was measured at points A and B in FIG. 1 using a laser displacement type, and the vibration energy was further measured by frequency analysis.
ウェブは１７５μｍ、 １１１０ｍｍ幅のポリエチレン
テレフタレートフィルムベースを使用し、張力１０に９
／ｍ。The web uses a 175 μm, 1110 mm wide polyethylene terephthalate film base, with a tension of 10 to 9.
/m.
搬送速度４０ｍ／ｍｉｎとした。The conveyance speed was 40 m/min.
噴出円筒は２個使用し、第１図に示すごとく、ウェブを
１８０°抱かせた。円筒の外径は３１８ｍｍ、肉圧１５
ｍｍで、気体噴出孔は孔径１．０＋ａｍ、開孔率０．６
％、とした。Two jetting cylinders were used, and the web was held at 180° as shown in FIG. The outer diameter of the cylinder is 318 mm, the wall pressure is 15
mm, the gas ejection hole has a pore diameter of 1.0+am, and a porosity of 0.6
%.
上記振動周波数に対する振動レベルの測定結果を第６図
に示す。同図（ａ）は第１図におけるＡ点、同図（ｂ）
は第１図Ｂ点の測定結果である。同図より、振動エネル
ギーは実効値でＡ点で１．５Ｖ、 Ｂ点では０．ＩＶで
あり、本発明の噴出円筒通過後のＢ点ではＡ点の１／１
５に減少した事が分かる。FIG. 6 shows the measurement results of vibration levels for the above vibration frequencies. The same figure (a) is point A in figure 1, the same figure (b)
is the measurement result at point B in Figure 1. From the same figure, the effective value of vibration energy is 1.5V at point A and 0.5V at point B. IV, and at point B after passing through the jet cylinder of the present invention, it is 1/1 of point A.
It can be seen that the number has decreased to 5.
［発明の効果］
本発明により、走行するウェブを気体により無接触搬送
する場合、ウェブの振動を効果的に吸収し、かつ、しわ
の発生を抑えることの出来るウェブ振動吸収装置を提供
することが出来た。[Effects of the Invention] According to the present invention, it is possible to provide a web vibration absorbing device that can effectively absorb web vibrations and suppress the occurrence of wrinkles when a running web is conveyed by gas without contact. done.
第１図は本発明の気体噴出円筒の配置の１例を示す説明
図である。第２図は本発明の噴出円筒の１例を示す断面
図であり、堰の配置を示す。第３図、第４図はそれぞれ
本発明の他の実施例の断面図、斜視図で、第５図は噴出
孔の形態を変えた１例を示す断面図である。第６図（ａ
）は実施例におけるＡ点（本発明適用前）の振動レベル
を示し、同図（ｂ）は同じくＢ点（本発明適用後）の振
動レベルを示す図である。
ｌ：ウェブ ２．２’：気体噴出円筒３：堰
４ ：乾燥装置５：ウェブ導入部
６ ：ウェブ導出部７：目の細かい金網 ９
：つり鐘形状筒８：ポケット
第１図FIG. 1 is an explanatory diagram showing one example of the arrangement of gas ejection cylinders of the present invention. FIG. 2 is a sectional view showing an example of the ejection cylinder of the present invention, and shows the arrangement of the weir. 3 and 4 are a sectional view and a perspective view, respectively, of other embodiments of the present invention, and FIG. 5 is a sectional view showing an example in which the form of the ejection hole is changed. Figure 6 (a
) shows the vibration level at point A (before application of the present invention) in the example, and FIG. 1: Web 2.2': Gas jet cylinder 3: Weir 4: Drying device 5: Web introduction part
6: Web derivation part 7: Fine wire mesh 9
: Bell-shaped tube 8: Pocket Figure 1
Claims (3)
ウェブ振動を吸収する装置であつて、ウェブを１つ以上
の気体噴出円筒に抱かせて搬送させる事を特徴とするウ
ェブ振動吸収装置。(1) A web vibration absorbing device that absorbs web vibrations generated by a device that conveys a web using gas, and is characterized in that the web is conveyed while being held in one or more gas jetting cylinders.
ｍａｑ間のある圧力に保持されるように、気体噴出孔径
及び円筒の肉厚を選定したことを特徴とする請求項１記
載のウェブ振動吸収装置。(2) Supply pressure to the above gas jet cylinder is 200 to 800 m
2. The web vibration absorbing device according to claim 1, wherein the diameter of the gas jet hole and the wall thickness of the cylinder are selected so that the pressure is maintained at a certain pressure between maq.
ウェブの幅手方向と平行に堰を設けた事を特徴とする請
求項１又は請求項２記載のウェブ振動吸収装置。(3) The web vibration absorbing device according to claim 1 or 2, characterized in that a weir is provided in the web introduction part and the web lead-out part to the gas jetting cylinder in parallel with the width direction of the web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032020A JP2597129B2 (en) | 1988-02-15 | 1988-02-15 | Web vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032020A JP2597129B2 (en) | 1988-02-15 | 1988-02-15 | Web vibration absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01209257A true JPH01209257A (en) | 1989-08-23 |
| JP2597129B2 JP2597129B2 (en) | 1997-04-02 |
Family
ID=12347180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63032020A Expired - Fee Related JP2597129B2 (en) | 1988-02-15 | 1988-02-15 | Web vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2597129B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924619A (en) * | 1996-02-09 | 1999-07-20 | Heidelberg Harris Inc. | Method and apparatus for passing a printed web between the separated cylinders of a deactivated printing unit of a web fed rotary printing press |
| JP5460913B1 (en) * | 2013-09-19 | 2014-04-02 | 株式会社大栄製作所 | Levitation device and transfer device provided with the levitating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4062878B2 (en) * | 2000-12-08 | 2008-03-19 | 東洋製罐株式会社 | Film jet feeder and film transport apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225059A (en) * | 1987-02-27 | 1988-09-20 | モリンス ピーエルシー | Web treater |
-
1988
- 1988-02-15 JP JP63032020A patent/JP2597129B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225059A (en) * | 1987-02-27 | 1988-09-20 | モリンス ピーエルシー | Web treater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924619A (en) * | 1996-02-09 | 1999-07-20 | Heidelberg Harris Inc. | Method and apparatus for passing a printed web between the separated cylinders of a deactivated printing unit of a web fed rotary printing press |
| JP5460913B1 (en) * | 2013-09-19 | 2014-04-02 | 株式会社大栄製作所 | Levitation device and transfer device provided with the levitating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2597129B2 (en) | 1997-04-02 |
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