JPH10296156A - Coating device - Google Patents
Coating deviceInfo
- Publication number
- JPH10296156A JPH10296156A JP10915697A JP10915697A JPH10296156A JP H10296156 A JPH10296156 A JP H10296156A JP 10915697 A JP10915697 A JP 10915697A JP 10915697 A JP10915697 A JP 10915697A JP H10296156 A JPH10296156 A JP H10296156A
- Authority
- JP
- Japan
- Prior art keywords
- knife
- web
- coating
- guide device
- roller
- 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
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、バツクアツプロー
ラの上方にナイフを進退自在に配置するナイフオーバー
ローラ形式の塗工装置に関するものであり、ウエブ継目
の通過のためにナイフをジヤンプ位置まで後退させたと
きに、ウエブに対する厚塗りを防止するための改良に係
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knife-over-roller type coating device in which a knife is disposed above a back-up roller so as to be able to advance and retreat, and the knife is retracted to a jump position for passing a web seam. The present invention relates to an improvement for preventing a thick coating on a web when it is performed.
【０００２】[0002]
【従来の技術】ナイフオーバーローラコータ形式の塗工
装置１は、図２の断面図（断面を示すハツチングは省
略）に示す如く、外周面２ａ上にウエブ走行路Ｒを形成
するバツクアツプローラ２と、バツクアツプローラ２の
上方に、バツクアツプローラ２から離反するジヤプ位置
からバツクアツプローラ２に接近する塗工位置までの間
を矢符Ａ方向へ進退自在に配置したナイフ３と、ウエブ
走行路Ｒのバツクアツプローラ２より下流側に、ウエブ
走行路Ｒを形成するように配置したガイドローラ等から
なるガイド装置４と、ウエブ走行路Ｒのナイフ３より上
流側に、ウエブ走行路Ｒに面する塗工液の液溜部Ｂを形
成するように配置した液溜具５とを備えている。バツク
アツプローラ２、ナイフ３、ガイド装置４及び液溜具５
は、ウエブ走行路Ｒを横断する方向へ延設してある。塗
工装置１は、ウエブ走行路Ｒを走行するウエブＷとナイ
フ３のエツジ３ａとの間に塗工間隙Ｇを形成するように
準備され、次に液溜部Ｂに塗工液Ｃが供給されると、走
行中のウエブＷの表面に塗工液Ｃを付着させると共に塗
工間隙Ｇを通過する塗工液が塗工層Ｄとなる。2. Description of the Related Art A coating apparatus 1 of the knife-over-roller coater type has a back-up roller 2 for forming a web running path R on an outer peripheral surface 2a as shown in a sectional view of FIG. A knife 3 arranged above the back-up roller 2 so as to be able to advance and retreat in the direction of arrow A between a jump position separating from the back-up roller 2 and a coating position approaching the back-up roller 2; A guide device 4 including a guide roller and the like arranged so as to form a web running path R downstream of the back-up roller 2 on the road R, and a guide device 4 upstream of the knife 3 of the web running path R on the web running path R. And a liquid reservoir 5 arranged so as to form a liquid reservoir B of the coating liquid facing the liquid reservoir. Back-up roller 2, knife 3, guide device 4, and liquid reservoir 5
Extends in a direction crossing the web running path R. The coating apparatus 1 is prepared so as to form a coating gap G between the web W traveling on the web travel path R and the edge 3a of the knife 3, and then the coating liquid C is supplied to the liquid reservoir B. Then, the coating liquid C adheres to the surface of the running web W, and the coating liquid passing through the coating gap G becomes the coating layer D.
【０００３】[0003]
【発明が解決しようとする課題】ところで、ウエブＷに
生じるウエブ継目Ｗａには、塗工中のバツクアツプロー
ラ２とナイフエツジ３ａとの間隙を通過できない厚みと
なるものがある。この場合に対処するために、塗工装置
１は、バツクアツプローラ２とナイフエツジ３ａとの間
隙をウエブ継目Ｗａが通過できるように、ナイフ３をジ
ヤンプ位置まで後退させるジヤンプ動作を行うように構
成してある。しかし、バツクアツプローラ２とナイフエ
ツジ３ａとの間隙をウエブ継目Ｗａが通過する間だけ、
ナイフ３のジヤンプ動作を行わせることは、非常に難し
く不可能に近い。そのため、従来の塗工装置１では、ウ
エブＷにおけるウエブ継目Ｗａの前後に亘つて、ジヤン
プ動作したナイフ３で厚塗りの塗工層を形成することに
なる。Some of the web seams Wa generated on the web W have a thickness that cannot pass through the gap between the back-up roller 2 and the knife edge 3a during coating. In order to cope with this case, the coating apparatus 1 is configured to perform a jump operation for retracting the knife 3 to the jump position so that the web seam Wa can pass through the gap between the back-up roller 2 and the knife edge 3a. It is. However, only while the web seam Wa passes through the gap between the back-up roller 2 and the knife edge 3a,
It is very difficult and almost impossible to perform the jumping operation of the knife 3. Therefore, in the conventional coating apparatus 1, a thick coating layer is formed by the knife 3 that has performed the jumping operation before and after the web seam Wa in the web W.
【０００４】この厚塗りの塗工層は、後の乾燥工程での
乾燥負荷が大きくなる。そのため、従来の塗工装置１を
備えた塗工・乾燥ラインでは、ウエブ継目Ｗａが乾燥装
置を通過する間、ウエブＷの走行速度を減速して運転す
る必要がある。しかし、ウエブＷの減速運転は、ライン
稼働率の低下を招くばかりでなく、通常に塗工した部分
の過乾燥による変質により品質の低下等をも招くことに
なる。[0004] This thick coating layer has a large drying load in a subsequent drying step. Therefore, in the coating / drying line provided with the conventional coating device 1, it is necessary to operate the web W while reducing the traveling speed of the web W while the web seam Wa passes through the drying device. However, the deceleration operation of the web W not only causes a decrease in the line operation rate, but also causes a deterioration in quality due to deterioration due to overdrying of a normally applied portion.
【０００５】そこで、本発明は、前記問題を解決するた
に、ウエブ継目の通過のためにナイフをジヤンプ位置ま
で後退させたときに、ウエブに対する厚塗りを行わない
ようにできる塗工装置の提供を目的とする。In order to solve the above-mentioned problem, the present invention provides a coating apparatus capable of preventing thick coating on the web when the knife is retracted to the jump position for passing the web seam. With the goal.
【０００６】[0006]
【課題を解決するための手段】本発明が採用した手段
は、外周面上にウエブ走行路を形成するバツクアツプロ
ーラと、バツクアツプローラの上方に、ジヤプ位置から
塗工位置までの間を進退自在に配置したナイフと、ウエ
ブ走行路のバツクアツプローラより下流側を形成するよ
うに配置したガイド装置とを備えた塗工装置において、
前記ガイド装置は、塗工位置からジヤンプ位置へ向かう
前記ナイフの後退動作と同期して移動するように配置さ
れると共に、ナイフが塗工位置まで前進しているときに
は、ナイフのエツジにウエブ走行路を接触させない位置
となり、ウエブ継目の通過のためにナイフがジヤンプ位
置まで後退するときには、ナイフのエツジにウエブ走行
路を接触させる位置となるようにしたことである。Means adopted by the present invention are a back-up roller for forming a web running path on the outer peripheral surface, and a back-and-forth movement between a gap position and a coating position above the back-up roller. A coating device including a freely disposed knife and a guide device disposed so as to form a downstream side of a back-up roller of a web traveling path;
The guide device is arranged so as to move in synchronization with the retreating operation of the knife from the coating position to the jump position, and when the knife is moving forward to the coating position, the web travel path is moved to the edge of the knife. When the knife retreats to the jump position due to the passage of the web seam, the web travel path is brought into contact with the edge of the knife.
【０００７】本発明にあつては、ジヤンプ位置までナイ
フを後退させるとき、ガイド装置も同期して移動し、ウ
エブ走行路を走行するウエブをナイフのエツジに接触さ
せるフローテングナイフコータ形式となるため、ナイフ
のエツジにウエブの塗工面側を、ウエブ張力に応じた押
圧力で押圧する状態となり、ウエブ継目及びその前後に
厚塗りすることがない。In the present invention, when the knife is retracted to the jump position, the guide device also moves synchronously, so that a floating knife coater type is used in which the web traveling on the web travel path contacts the edge of the knife. Then, the coated side of the web is pressed against the edge of the knife with a pressing force corresponding to the web tension, so that the web seam and the web seam are not thickly coated.
【０００８】[0008]
【発明の実施の形態】以下、本発明に係る塗工装置を図
１の断面図（断面を示すハツチングは省略）に示す実施
の形態に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A coating apparatus according to the present invention will be described below with reference to an embodiment shown in a sectional view of FIG. 1 (hatching showing a section is omitted).
【０００９】本発明の塗工装置１１の特徴は、ウエブ継
目Ｗａの通過のためにナイフ３をジヤンプ動作させると
きに、ウエブ走行路Ｒの下流側に配置したガイドローラ
からなるガイド装置１４を同期して移動させ、塗工形式
を通常塗工のナイフオーバーローラコータ形式から厚塗
り防止のためのフローテングナイフコータ形式に変更す
ることである。塗工装置１１において、この移動するガ
イド装置１４を備えた以外の構成は、図１に示す従来の
塗工装置１と実質的に同一であり、同一符号は同一構成
部材を示す。A feature of the coating apparatus 11 of the present invention is that, when the knife 3 is jump-operated for passing the web seam Wa, the guide apparatus 14 composed of guide rollers disposed downstream of the web running path R is synchronized. To change the coating type from a knife-over-roller coater type for normal coating to a floating knife coater type for preventing thick coating. The configuration of the coating apparatus 11 except for the provision of the moving guide apparatus 14 is substantially the same as that of the conventional coating apparatus 1 shown in FIG. 1, and the same reference numerals denote the same components.
【００１０】上記ガイド装置１４は、スライダ又は揺動
アーム等からなる移動装置（図示略）に取付けられ、二
点鎖線で示す通常塗工状態となる位置Ｅから実線で示す
ジヤンプ動作時の位置Ｆまでの間を移動するようにして
ある。位置Ｅにガイド装置１４が位置するときには、ガ
イド装置１４の外周面１４ａ及びバツクアツプローラ２
の外周面２ａに接する接線Ｇの接点Ｇａ，Ｇｂへ下ろし
た両垂直線の間の領域Ｈの外側で、ナイフ３が進退する
状態となり、通常塗工のナイフオーバーローラコータ形
式となる。また、位置Ｆにガイド装置１４が位置すると
きには、ガイド装置１４の外周面１４ａ及びバツクアツ
プローラ２の外周面２ａに接する接線Ｊの接点Ｊａ，Ｊ
ｂへ下ろした両垂直線の間の領域Ｋの内側で、ナイフ３
が進退する状態となり、フローテングナイフコータ形式
となる。The guide device 14 is attached to a moving device (not shown) including a slider or a swing arm, and moves from a position E where a normal coating state is indicated by a two-dot chain line to a position F during a jump operation indicated by a solid line. To move between. When the guide device 14 is located at the position E, the outer peripheral surface 14a of the guide device 14 and the back-up roller 2
The knife 3 advances and retreats outside the region H between the vertical lines lowered to the contact points Ga and Gb of the tangent line G contacting the outer peripheral surface 2a of the knives G, and a knife-over-roller coater type of normal coating is performed. Further, when the guide device 14 is located at the position F, the contacts Ja, J of the tangent J contacting the outer peripheral surface 14a of the guide device 14 and the outer peripheral surface 2a of the backup roller 2 are provided.
b, inside the area K between the two vertical lines lowered to
Move forward and backward, and a floating knife coater type is adopted.
【００１１】位置Ｆにガイド装置１４が位置するフロー
テングナイフコータ形式の状態では、ナイフ３のエツジ
３ａにウエブＷの塗工面側を、ウエブ張力に応じた押圧
力で押圧する状態となり、走行するウエブＷのウエブ継
目Ｗａ及びその前後に厚塗りすることがない。この厚塗
りを防止するためには、フローテングナイフコータ形式
の状態を得るように、ナイフ３のジヤンプ動作と同期し
てガイド装置１４を移動させる必要がある。この同期に
は、予めガイド装置１４を位置Ｅから位置Ｆへ移動させ
た後に、ナイフ３をジヤンプ動作させることも含まれ
る。なお、通常塗工時のナイフオーバーローラコータ形
式に比べジヤプ動作時のフローテングナイフコータ形式
の方が薄塗りとなるため、ウエブ継目Ｗａが通過した後
には、ナイフ３をバツクアツプローラ２に向かつて塗工
位置まで前進させる動作と、ガイド装置１４をＦ位置か
らＥ位置へ移動させる動作とのいずれを先行させても、
又は同時に行つてもよい。In the state of the floating knife coater type in which the guide device 14 is located at the position F, the coating surface of the web W is pressed against the edge 3a of the knife 3 with a pressing force corresponding to the web tension, and the vehicle travels. There is no thick coating before and after the web seam Wa of the web W. In order to prevent this thick coating, it is necessary to move the guide device 14 in synchronization with the jump operation of the knife 3 so as to obtain a floating knife coater type state. This synchronization also includes moving the guide device 14 from the position E to the position F in advance and then jumping the knife 3. In addition, since the floating knife coater type at the time of the jump operation is thinner than the knife over roller coater type at the time of normal coating, the knife 3 is directed to the back-up roller 2 after the web seam Wa passes. In the past, either of the operation of moving forward to the coating position and the operation of moving the guide device 14 from the F position to the E position,
Or you may go simultaneously.
【００１２】前記ナイフ３は、図示の如く丸棒を９０°
切欠いた「牛の鼻型」のものに限定するものではなく、
図示は省略したが、厚板状の先端に適宜形状のエツジを
形成したもの等を適宜選択することも勿論可能である。
更に、ガイド装置１４は、自由回転するガイドローラに
限定するものではなく、表面に多数の吸引孔を穿設する
と共に強制駆動したサクシヨンローラ又はエンドレス状
のサクシヨンベルトに変更することも勿論可能である。As shown in the figure, the knife 3 is used to rotate a round bar by 90 °.
It is not limited to the cut-out "cow nose type",
Although illustration is omitted, it is of course possible to appropriately select one having a suitably shaped edge formed at the tip of a thick plate.
Further, the guide device 14 is not limited to a freely rotating guide roller, but may be replaced with a suction roller or an endless suction belt that has a large number of suction holes formed on the surface and is forcibly driven. It is.
【００１３】[0013]
【発明の効果】以上、詳述の如く、本発明に係る塗工装
置は、ナイフのエツジの箇所をウエブ継目が通過すると
き、フローテングナイフコータの塗工形式となつてウエ
ブに対する厚塗りを行わないため、ライン速度を減速す
る必要がなくなり、ライン稼働率を低下や品質の低下を
生じさせることがない優れた効果を有する。As described above in detail, the coating apparatus according to the present invention, when a web seam passes through an edge of a knife, forms a thick coat on the web in a coating form of a floating knife coater. Since it is not performed, there is no need to reduce the line speed, and there is an excellent effect that the line operation rate does not decrease and the quality does not decrease.
【図１】本発明に係る塗工装置の実施の形態を示す断面
図（断面を示すハツチングは省略）である。FIG. 1 is a sectional view (a hatching showing a section is omitted) showing an embodiment of a coating apparatus according to the present invention.
【図２】従来の塗工装置を示す断面図（断面を示すハツ
チングは省略）である。FIG. 2 is a cross-sectional view showing a conventional coating apparatus (hatching showing a cross section is omitted).
２…バツクアツプローラ、２ａ…外周面、３…ナイフ、
３ａ…エツジ、１４…ガイド装置、Ｒ…ウエブ走行路、
Ｅ（Ｆ）…ガイド装置の位置2: Back-up roller, 2a: Outer peripheral surface, 3: Knife,
3a: edge, 14: guide device, R: web travel path,
E (F): Position of the guide device
Claims (1)
クアツプローラと、バツクアツプローラの上方に、ジヤ
プ位置から塗工位置までの間を進退自在に配置したナイ
フと、ウエブ走行路のバツクアツプローラより下流側を
形成するように配置したガイド装置とを備えた塗工装置
において、前記ガイド装置は、塗工位置からジヤンプ位
置へ向かう前記ナイフの後退動作と同期して移動するよ
うに配置されると共に、ナイフが塗工位置まで前進して
いるときには、ナイフのエツジにウエブ走行路を接触さ
せない位置となり、ウエブ継目の通過のためにナイフが
ジヤンプ位置まで後退するときには、ナイフのエツジに
ウエブ走行路を接触させる位置となるようにしたことを
特徴とする塗工装置。1. A back-up roller for forming a web running path on the outer peripheral surface, a knife disposed above the back-up roller so as to be able to advance and retreat from a gap position to a coating position, and a back of the web running path. A guide device arranged to form a downstream side of the app roller, wherein the guide device is arranged to move in synchronization with the retreating operation of the knife from the coating position to the jump position. When the knife is moving forward to the coating position, the web is not brought into contact with the edge of the knife when the web travel path is in contact with the knife. A coating apparatus characterized by being located at a position where the traveling path is brought into contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9109156A JP3028410B2 (en) | 1997-04-25 | 1997-04-25 | Coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9109156A JP3028410B2 (en) | 1997-04-25 | 1997-04-25 | Coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10296156A true JPH10296156A (en) | 1998-11-10 |
| JP3028410B2 JP3028410B2 (en) | 2000-04-04 |
Family
ID=14503067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9109156A Expired - Fee Related JP3028410B2 (en) | 1997-04-25 | 1997-04-25 | Coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3028410B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003053227A (en) * | 2001-08-14 | 2003-02-25 | Nihon Elecmate Corp | Liquid laminating apparatus |
| JP2011042436A (en) * | 2009-08-19 | 2011-03-03 | Toyota Motor Corp | Web carrying device and web carrying method |
-
1997
- 1997-04-25 JP JP9109156A patent/JP3028410B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003053227A (en) * | 2001-08-14 | 2003-02-25 | Nihon Elecmate Corp | Liquid laminating apparatus |
| JP2011042436A (en) * | 2009-08-19 | 2011-03-03 | Toyota Motor Corp | Web carrying device and web carrying method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3028410B2 (en) | 2000-04-04 |
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Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
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