JPWO2019159560A1 - Continuous coating device - Google Patents

Continuous coating device Download PDF

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JPWO2019159560A1
JPWO2019159560A1 JP2019521844A JP2019521844A JPWO2019159560A1 JP WO2019159560 A1 JPWO2019159560 A1 JP WO2019159560A1 JP 2019521844 A JP2019521844 A JP 2019521844A JP 2019521844 A JP2019521844 A JP 2019521844A JP WO2019159560 A1 JPWO2019159560 A1 JP WO2019159560A1
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coating liquid
plate
scattered
width direction
liquid collecting
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JP6687159B2 (en
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叡 奥村
叡 奥村
晃樹 杉山
晃樹 杉山
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JFE Steel Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material

Abstract

連続塗布装置（１）は、アプリケーターロール（４）と通板開口部（２ａ）との間に配設された飛散塗液回収装置（１０）を備え、飛散塗液回収装置（１０）は、鋼板（Ｓ）の幅方向両端部に対して所定間隔を空けて端部が対向配置された、鋼板（Ｓ）の幅方向外側の通板開口部（２ａ）を覆う飛散塗液回収板（１１ａ，１１ｂ）と、飛散塗液回収板（１１ａ，１１ｂ）を鋼板（Ｓ）の幅方向に沿って移動する移動機構と、を備える。The continuous coating device (1) includes a scattered coating liquid recovery device (10) disposed between the applicator roll (4) and the passage plate opening (2a). The scattered coating liquid collecting plate (11a) that covers the widthwise outside plate passing opening (2a) of the steel plate (S), the end of which is disposed opposite to the both ends in the width direction of the steel plate (S) at predetermined intervals. , 11b) and a moving mechanism for moving the scattered coating liquid collecting plates (11a, 11b) along the width direction of the steel plate (S).

Description

本発明は、通板開口部を介して鉛直上向き方向に搬送される鋼板の表面にアプリケーターロールにより塗液を連続的に塗布する連続塗布装置に関する。  The present invention relates to a continuous coating device that continuously applies a coating liquid to a surface of a steel sheet that is conveyed vertically upward through a passage opening portion by an applicator roll.

従来の連続塗布装置では、アプリケーターロールの胴長方向両側端部の下方に屋根型の飛散塗液捕捉板を設置し、飛散塗液捕捉板によって溶接点通過時のクイックオープンによる飛散塗液をコーターパンへ回収することにより、飛散塗液によって鋼板に表面欠陥が発生することを抑制していた。  In a conventional continuous coating device, a roof-type scattered coating liquid trapping plate is installed below both ends in the body length direction of the applicator roll, and the scattered coating liquid trapping plate coats the scattered coating liquid by quick opening when passing through a welding point. By collecting it in a pan, the generation of surface defects on the steel sheet due to the scattered coating liquid was suppressed.

特開２０１３−２３７０００号公報JP 2013-237000A

従来の連続塗布装置によれば、板幅が異なる鋼板を連続的に処理する際、鋼板の板幅が減少することによって飛散塗液捕捉板と鋼板の幅方向端部（エッジ部）との間の距離が大きくなることにより、鋼板が通板されてくる通板開口部が完全には覆われなくなることがある。結果、鋼板や付帯ロールのエッジ部からの飛散塗液が通板開口部に浸入することにより鋼板に表面欠陥が発生し、歩留まりが低下する可能性がある。  According to the conventional continuous coating apparatus, when continuously processing steel sheets having different widths, the width of the steel sheet is reduced, so that the distance between the scattered coating liquid capturing plate and the width direction end (edge part) of the steel sheet is reduced. When the distance is increased, the passage opening through which the steel plate is passed may not be completely covered. As a result, surface defects may occur on the steel sheet due to the penetration of the coating liquid scattered from the edge of the steel sheet or the attached roll into the passage opening, and the yield may be reduced.

本発明は、上記課題に鑑みてなされたものであって、その目的は、鋼板の板幅が変化した場合であっても鋼板に表面欠陥が発生することを抑制可能な連続塗布装置を提供することにある。  The present invention has been made in view of the above problems, and an object of the present invention is to provide a continuous coating apparatus capable of suppressing occurrence of surface defects in a steel sheet even when the width of the steel sheet changes. It is in.

本発明に係る連続塗布装置は、通板開口部を介して鉛直上向き方向に搬送される鋼板の表面にアプリケーターロールにより塗液を連続的に塗布する連続塗布装置であって、前記アプリケーターロールと前記通板開口部との間に配設された飛散塗液回収装置を備え、前記飛散塗液回収装置は、前記鋼板の幅方向両端部に対して所定間隔を空けて端部が対向配置された、前記鋼板の幅方向外側の前記通板開口部を覆う飛散塗液回収板と、前記飛散塗液回収板を前記鋼板の幅方向に沿って移動する移動機構と、を備えることを特徴とする。  The continuous coating apparatus according to the present invention is a continuous coating apparatus that continuously applies a coating liquid by an applicator roll to a surface of a steel sheet that is conveyed vertically upward through a through-plate opening. A scattered coating liquid collecting device disposed between the passage plate opening and the scattered coating liquid collecting device, wherein the scattered coating liquid collecting device is arranged such that the ends are opposed to each other at predetermined intervals with respect to both ends in the width direction of the steel sheet. A scattered coating liquid recovery plate that covers the passage plate opening outside the width direction of the steel plate, and a moving mechanism that moves the scattered coating liquid recovery plate along the width direction of the steel plate. .

本発明に係る連続塗布装置は、上記発明において、前記飛散塗液回収板の前記端部には切り欠き部が設けられ、前記鋼板の幅方向両端部が前記切り欠き部内を通過することを特徴とする。  The continuous coating apparatus according to the present invention is characterized in that, in the above invention, a cutout portion is provided at the end of the scattered coating liquid collecting plate, and both ends in the width direction of the steel plate pass through the cutout portion. And

本発明に係る連続塗布装置によれば、鋼板の板幅が変化した場合であっても鋼板に表面欠陥が発生することを抑制できる。  ADVANTAGE OF THE INVENTION According to the continuous coating apparatus which concerns on this invention, even if the width of a steel plate changes, it can suppress that a surface defect generate | occur | produces in a steel plate.

図１は、本発明の一実施形態である連続塗布装置の構成を示す模式図である。FIG. 1 is a schematic diagram illustrating a configuration of a continuous coating apparatus according to an embodiment of the present invention. 図２は、図１に示す連続塗布装置の変形例の構成を示す模式図である。FIG. 2 is a schematic diagram showing a configuration of a modification of the continuous coating apparatus shown in FIG.

以下、図１，図２を参照して、本発明の一実施形態である連続塗布装置の構成について説明する。図１は、本発明の一実施形態である連続塗布装置の構成を示す模式図である。図２は、図１に示す連続塗布装置の変形例の構成を示す模式図である。  Hereinafter, a configuration of a continuous coating apparatus according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram illustrating a configuration of a continuous coating apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a configuration of a modification of the continuous coating apparatus shown in FIG.

図１に示すように、本発明の一実施形態である連続塗布装置１は、鉛直上向き方向（図示矢印方向）に高速（例えば、２５０ｍｐｍ以上の速度）で搬送される鋼板Ｓの両面に塗液を塗布する装置であり、フロア板２、プレコートロール３、アプリケーターロール４、及び飛散塗液回収装置１０を備えている。  As shown in FIG. 1, a continuous coating apparatus 1 according to one embodiment of the present invention includes a coating liquid on both surfaces of a steel sheet S which is conveyed at a high speed (for example, a speed of 250 mpm or more) in a vertically upward direction (the direction of the arrow in the drawing). And a floor plate 2, a precoat roll 3, an applicator roll 4, and a scattered coating liquid recovery device 10.

フロア板２は、鉛直上向き方向に搬送される鋼板Ｓが通過する矩形形状の通板開口部２ａを有する板材によって構成されている。  The floor plate 2 is made of a plate material having a rectangular passing plate opening 2a through which the steel sheet S conveyed vertically upward passes.

プレコートロール３は、フロア板２の上方に配置された、鋼板Ｓを挟持する一対のロール部材によって構成され、図示しないコーターパンやロール等から塗液の供給を受け、鋼板Ｓの両面に塗液を予備塗装する。塗液を予備塗装することによって、アプリケーターロール４による本塗装時に塗液の擦れやオーバーコート等の塗装欠陥が発生することを抑制できる。  The precoat roll 3 is constituted by a pair of roll members disposed above the floor plate 2 and sandwiching the steel sheet S, receives a supply of the coating liquid from a coater pan, a roll, or the like (not shown), and applies the coating liquid to both surfaces of the steel sheet S. Is pre-painted. By pre-coating the coating liquid, it is possible to suppress the occurrence of coating defects such as rubbing of the coating liquid and overcoating during the main coating by the applicator roll 4.

アプリケーターロール４は、プレコートロール３の上方に配置された、鋼板Ｓを挟持する一対のロール部材によって構成され、図示しないコーターパンやロール等から塗液の供給を受け、鋼板Ｓの両面に塗液を本塗装する。  The applicator roll 4 includes a pair of roll members disposed above the precoat roll 3 and sandwiching the steel sheet S. The applicator roll 4 is supplied with a coating liquid from a coater pan or a roll (not shown), and the coating liquid is applied to both surfaces of the steel sheet S. Is painted.

飛散塗液回収装置１０は、フロア板２とプレコートロール３との間に配設され、飛散塗液回収板１１ａ，１１ｂ、ガイドレール１２ａ１，１２ａ２，１２ｂ１，１２ｂ２、及び幅調整用治具１３ａ，１３ｂを備えている。  The scattered coating liquid recovery device 10 is disposed between the floor plate 2 and the precoat roll 3, and includes scattered coating liquid recovery plates 11a, 11b, guide rails 12a1, 12a2, 12b1, 12b2, and width adjusting jigs 13a, 13a. 13b.

飛散塗液回収板１１ａ（１１ｂ）は、鉛直方向に立設する部材１１ａ１，１１ａ２（１１ｂ１，１１ｂ２）と、部材１１ａ１，１１ａ２（１１ｂ１，１１ｂ２）の上端部に設けられた屋根状部材１１ａ３（１１ｂ３）とからなる断面視略コの字状の部材によって構成されている。飛散塗液回収板１１ａ（１１ｂ）の端部は鋼板Ｓの幅方向両端部（エッジ部）に対して所定間隔を空けて対向配置され、飛散塗液回収板１１ａ（１１ｂ）は鉛直方向上方から見て鋼板Ｓの幅方向外側の通板開口部２ａを覆っている。なお、鋼板Ｓが蛇行して飛散塗液回収板１１ａ（１１ｂ）と接触することを抑制するために、所定間隔は１０〜３０ｍｍ程度とすることが望ましい。  The scattered coating liquid collecting plate 11a (11b) includes members 11a1 and 11a2 (11b1 and 11b2) that stand vertically and a roof-like member 11a3 (11b3) provided at the upper end of the members 11a1 and 11a2 (11b1 and 11b2). ) And a substantially U-shaped member in cross section. The end portions of the scattered coating liquid collecting plates 11a (11b) are disposed opposite to both ends (edge portions) in the width direction of the steel sheet S at a predetermined interval, and the scattered coating liquid collecting plates 11a (11b) are arranged from above in the vertical direction. When viewed, it covers the passing plate opening 2a on the outside in the width direction of the steel plate S. In order to prevent the steel sheet S from meandering and coming into contact with the scattered coating liquid collecting plate 11a (11b), the predetermined interval is desirably about 10 to 30 mm.

ガイドレール１２ａ１，１２ａ２（１２ｂ１，１２ｂ２）は、水平方向に配設されたレール部材によって構成され、飛散塗液回収板１１ａ（１１ｂ）が水平方向に摺動可能な状態で飛散塗液回収板１１ａ（１１ｂ）を構成する部材１１ａ１，１１ａ２（１１ｂ１，１１ｂ２）の下端部を支持する。  The guide rails 12a1 and 12a2 (12b1 and 12b2) are constituted by rail members arranged in the horizontal direction, and the scattered coating liquid recovery plate 11a (11b) is slidable in the horizontal direction. The lower ends of the members 11a1 and 11a2 (11b1 and 11b2) constituting (11b) are supported.

幅調整用治具１３ａ（１３ｂ）は、飛散塗液回収板１１ａ（１１ｂ）を構成する屋根状部材１１ａ３（１１ｂ３）の上面に固定された棒状の部材により構成されている。幅調整用治具１３ａ（１３ｂ）を水平方向に移動させることによって、ガイドレール１２ａ１，１２ａ２（１２ｂ１，１２ｂ２）に沿って飛散塗液回収板１１ａ（１１ｂ）を水平方向に移動させることができる。これにより、鋼板Ｓの幅が変化した場合であっても、鋼板Ｓの幅方向に沿って飛散塗液回収板１１ａ（１１ｂ）を移動させ、飛散塗液回収板１１ａ（１１ｂ）の端部と鋼板Ｓとの間の距離を所定間隔に保つことができる。結果、鋼板Ｓの板幅が変化した場合であっても、鋼板Ｓや付帯ロールのエッジ部からの飛散塗液が通板開口部２ａに浸入することを抑制できるので、鋼板Ｓの表面に飛散塗液が付着して表面欠陥が発生することを抑制できる。  The width adjusting jig 13a (13b) is configured by a rod-shaped member fixed to the upper surface of the roof-like member 11a3 (11b3) constituting the scattered coating liquid collecting plate 11a (11b). By moving the width adjusting jig 13a (13b) in the horizontal direction, the scattered coating liquid collecting plate 11a (11b) can be moved in the horizontal direction along the guide rails 12a1, 12a2 (12b1, 12b2). Thereby, even if the width of the steel plate S changes, the scattered coating liquid recovery plate 11a (11b) is moved along the width direction of the steel plate S, and the end of the scattered coating liquid recovery plate 11a (11b) is moved. The distance from the steel plate S can be kept at a predetermined interval. As a result, even when the width of the steel sheet S changes, the coating liquid scattered from the edge of the steel sheet S or the auxiliary roll can be prevented from entering the passage opening 2a. The generation of surface defects due to the adhesion of the coating liquid can be suppressed.

以上の説明から明らかなように、本発明の一実施形態である連続塗布装置１は、アプリケーターロール４と通板開口部２ａとの間に配設された飛散塗液回収装置１０を備え、飛散塗液回収装置１０は、鋼板Ｓの幅方向両端部に対して所定間隔を空けて端部が対向配置された、鋼板Ｓの幅方向外側の通板開口部２ａを覆う飛散塗液回収板１１ａ，１１ｂと、飛散塗液回収板１１ａ，１１ｂを鋼板Ｓの幅方向に沿って移動する移動機構と、を備える。これにより、鋼板Ｓの板幅が変化した場合であっても、鋼板Ｓや付帯ロールのエッジ部からの飛散塗液が通板開口部２ａに浸入することを抑制できるので、鋼板Ｓに表面欠陥が発生することを抑制できる。  As is apparent from the above description, the continuous coating apparatus 1 according to one embodiment of the present invention includes the scattered coating liquid collecting apparatus 10 disposed between the applicator roll 4 and the passage plate opening 2a. The coating liquid collecting apparatus 10 includes a scattered coating liquid collecting plate 11a that covers the widthwise outside opening 2a of the steel sheet S, the ends of which are opposed to each other at predetermined intervals with respect to both ends in the width direction of the steel sheet S. , 11b, and a moving mechanism for moving the scattered coating liquid collecting plates 11a, 11b along the width direction of the steel sheet S. Thereby, even if the sheet width of the steel sheet S changes, it is possible to prevent the steel sheet S and the scattered coating liquid from the edges of the auxiliary rolls from entering the passage opening 2a. Can be suppressed.

なお、図２に示すように、飛散塗液回収板１１ａ，１１ｂの端部に切り欠き部１４ａ，１４ｂを設け、鋼板Ｓの幅方向両端部が切り欠き部１４ａ，１４ｂ内を通過することが望ましい。このような構成によれば、飛散塗液回収板１１ａ，１１ｂが通板開口部２ａを覆う面積を大きくできるので、鋼板Ｓや付帯ロールのエッジ部からの飛散塗液が通板開口部２ａに浸入することをより抑制し、鋼板Ｓに表面欠陥が発生することをより抑制できる。  As shown in FIG. 2, notch portions 14a and 14b are provided at the ends of the scattered coating liquid collecting plates 11a and 11b, and both ends in the width direction of the steel sheet S may pass through the notch portions 14a and 14b. desirable. According to such a configuration, the area in which the scattered coating liquid collecting plates 11a and 11b cover the passing plate opening 2a can be increased, so that the scattered coating liquid from the steel plate S or the edge of the auxiliary roll flows into the passing plate opening 2a. Infiltration can be further suppressed, and occurrence of surface defects in the steel sheet S can be further suppressed.

以上、本発明者らによってなされた発明を適用した実施の形態について説明したが、本実施形態による本発明の開示の一部をなす記述及び図面により本発明は限定されることはない。すなわち、本実施形態に基づいて当業者等によりなされる他の実施の形態、実施例、及び運用技術等は全て本発明の範疇に含まれる。  As described above, the embodiment to which the invention made by the present inventors is applied has been described. However, the present invention is not limited by the description and the drawings that constitute a part of the disclosure of the present invention according to the present embodiment. That is, other embodiments, examples, operation techniques, and the like performed by those skilled in the art based on this embodiment are all included in the scope of the present invention.

本発明によれば、鋼板の板幅が変化した場合であっても鋼板に表面欠陥が発生することを抑制可能な連続塗布装置を提供することができる。  ADVANTAGE OF THE INVENTION According to this invention, even if the width | variety of a steel plate changes, the continuous coating apparatus which can suppress that a surface defect generate | occur | produces in a steel plate can be provided.

１ 連続塗布装置
２ フロア板
３ プレコートロール
４ アプリケーターロール
１０ 飛散塗液回収装置
１１ａ，１１ｂ 飛散塗液回収板
１２ａ１，１２ａ２，１２ｂ１，１２ｂ２ ガイドレール
１３ａ，１３ｂ 幅調整用治具
１４ａ，１４ｂ 切り欠き部
Ｓ 鋼板REFERENCE SIGNS LIST 1 continuous coating device 2 floor plate 3 precoat roll 4 applicator roll 10 scattered coating liquid recovery device 11a, 11b scattered coating liquid recovery plate 12a1, 12a2, 12b1, 12b2 guide rail 13a, 13b width adjusting jig 14a, 14b notch S steel plate

Claims (2)

通板開口部を介して鉛直上向き方向に搬送される鋼板の表面にアプリケーターロールにより塗液を連続的に塗布する連続塗布装置であって、
前記アプリケーターロールと前記通板開口部との間に配設された飛散塗液回収装置を備え、
前記飛散塗液回収装置は、前記鋼板の幅方向両端部に対して所定間隔を空けて端部が対向配置された、前記鋼板の幅方向外側の前記通板開口部を覆う飛散塗液回収板と、前記飛散塗液回収板を前記鋼板の幅方向に沿って移動する移動機構と、を備える
ことを特徴とする連続塗布装置。A continuous coating device that continuously applies a coating liquid by a applicator roll to a surface of a steel sheet that is conveyed vertically upward through a passing plate opening,
A scattered coating liquid recovery device disposed between the applicator roll and the passage plate opening,
The scattered coating liquid collecting device includes a scattered coating liquid collecting plate that covers the passage plate opening outside the width direction of the steel plate, the ends of which are disposed opposite to each other at predetermined intervals with respect to both ends in the width direction of the steel plate. And a moving mechanism for moving the scattered coating liquid collecting plate along the width direction of the steel plate. 前記飛散塗液回収板の前記端部には切り欠き部が設けられ、前記鋼板の幅方向両端部が前記切り欠き部内を通過することを特徴とする請求項１に記載の連続塗布装置。  The continuous coating apparatus according to claim 1, wherein a cutout portion is provided at the end of the scattered coating liquid collecting plate, and both ends in the width direction of the steel plate pass through the cutout portion.
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