JP6687159B2 - Continuous coating device - Google Patents

Continuous coating device Download PDF

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JP6687159B2
JP6687159B2 JP2019521844A JP2019521844A JP6687159B2 JP 6687159 B2 JP6687159 B2 JP 6687159B2 JP 2019521844 A JP2019521844 A JP 2019521844A JP 2019521844 A JP2019521844 A JP 2019521844A JP 6687159 B2 JP6687159 B2 JP 6687159B2
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coating liquid
plate
liquid recovery
steel plate
scattered
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JPWO2019159560A1 (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

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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。  TECHNICAL FIELD The present invention relates to a continuous coating device that continuously coats a coating liquid onto a surface of a steel sheet that is conveyed vertically upward through a passage opening 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 spray coating liquid catcher is installed below both side ends of the applicator roll in the cylinder length direction, and the spray coating liquid catcher coats the spray coat liquid by quick opening when passing through the welding point. By collecting in a pan, the occurrence of surface defects on the steel sheet due to the scattered coating liquid was suppressed.

特開２０１３−２３７０００号公報JP, 2013-237,000, A

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 device, when continuously processing steel plates having different plate widths, the plate width of the steel plates is reduced, so that the space between the scattered coating liquid capturing plate and the width direction end portions (edge portions) of the steel plates is reduced. When the distance is increased, the plate passing opening through which the steel plate is passed may not be completely covered. As a result, the spray coating liquid from the edge portion of the steel sheet or the accessory roll may enter the opening of the threading plate to cause surface defects on the steel sheet, which may reduce the yield.

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 thereof is to provide a continuous coating device capable of suppressing the occurrence of surface defects on a steel sheet even when the width of the steel sheet changes. Especially.

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 device according to the present invention is a continuous coating device for continuously applying a coating liquid by an applicator roll on the surface of a steel sheet conveyed in a vertically upward direction through a passage opening, the applicator roll and the A scattering coating liquid recovery device is provided between the through plate opening and the scattering coating liquid recovery device, and the scattering coating liquid recovery device is arranged such that the end portions of the scattering coating liquid recovery device face each other at predetermined intervals with respect to both widthwise end portions of the steel plate. A spray coating liquid recovery plate that covers the through-plate opening on the outer side in the width direction of the steel plate, and a moving mechanism that moves the spray 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。  In the above invention, the continuous coating apparatus according to the present invention is characterized in that a cutout portion is provided at the end portion of the scattered coating liquid recovery plate, and both widthwise end portions of the steel sheet 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。  According to the continuous coating device of the present invention, it is possible to suppress the occurrence of surface defects on the steel sheet even when the width of the steel sheet changes.

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 showing the configuration of a continuous coating apparatus that is 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 modified example of the continuous coating device 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, with reference to FIGS. 1 and 2, the configuration of a continuous coating apparatus according to an embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing the configuration of a continuous coating apparatus that is an embodiment of the present invention. FIG. 2 is a schematic diagram showing a configuration of a modified example of the continuous coating device 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 an embodiment of the present invention applies a coating liquid to both surfaces of a steel plate S that is conveyed at a high speed (for example, at a speed of 250 mpm or more) in a vertically upward direction (direction of an arrow shown in the drawing). Is a device for applying a coating liquid, and includes 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 plate passing opening 2a through which a steel plate S conveyed in a vertically upward direction 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 composed of a pair of roll members arranged above the floor plate 2 and sandwiching the steel plate S, receives the coating liquid from a coater pan or roll (not shown), and applies the coating liquid to both surfaces of the steel plate S. To prepaint. By precoating 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 with 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 is composed of a pair of roll members arranged above the precoat roll 3 and sandwiching the steel plate S. The applicator roll 4 receives the supply of the coating liquid from a coater pan, roll, or the like (not shown), and applies the coating liquid to both surfaces of the steel plate S. To the main painting.

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 splash coating liquid collecting device 10 is disposed between the floor plate 2 and the precoat roll 3, and the splash coating liquid collecting plates 11a and 11b, the guide rails 12a1, 12a2, 12b1 and 12b2, and the width adjusting jig 13a, 13b is provided.

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 recovery plate 11a (11b) includes members 11a1 and 11a2 (11b1 and 11b2) standing upright in the vertical direction, and a roof-like member 11a3 (11b3) provided on the upper ends of the members 11a1 and 11a2 (11b1 and 11b2). ) And a substantially U-shaped member in sectional view. The end portions of the scattering coating liquid recovery plate 11a (11b) are arranged to face both ends (edge portions) in the width direction of the steel plate S at a predetermined interval, and the scattering coating liquid recovery plate 11a (11b) is arranged from above in the vertical direction. As seen, it covers the strip opening 2a on the outer side in the width direction of the steel plate S. In addition, in order to prevent the steel plate S from meandering and coming into contact with the scattered coating liquid recovery plate 11a (11b), it is desirable that the predetermined interval be approximately 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, 12a2 (12b1, 12b2) are composed of rail members arranged in the horizontal direction, and the scattered coating liquid recovery plate 11a (11b) is slidable in the horizontal direction in a scattered coating liquid recovery plate 11a. The lower ends of the members 11a1 and 11a2 (11b1 and 11b2) forming (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 composed of a rod-shaped member fixed to the upper surface of the roof-shaped member 11a3 (11b3) that constitutes the scattered coating liquid recovery plate 11a (11b). By moving the width adjusting jig 13a (13b) in the horizontal direction, the scattered coating liquid recovery plate 11a (11b) can be moved in the horizontal direction along the guide rails 12a1, 12a2 (12b1, 12b2). As a result, even when 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 portion of the scattered coating liquid recovery plate 11a (11b) is moved. The distance from the steel plate S can be maintained at a predetermined interval. As a result, even when the plate width of the steel plate S changes, it is possible to prevent the splashing coating liquid from the steel plate S and the edge portion of the accessory roll from entering the through-plate opening 2a, so that the coating liquid scatters on the surface of the steel plate S. It is possible to suppress the occurrence of surface defects due to the application of the coating liquid.

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 clear from the above description, the continuous coating device 1 according to the embodiment of the present invention is provided with the scattered coating liquid recovery device 10 arranged between the applicator roll 4 and the plate passing opening 2a, and is scattered. The coating liquid recovery apparatus 10 includes a scattered coating liquid recovery plate 11a that covers the widthwise outside of the steel sheet S and has a threaded plate opening 2a that is opposite to the widthwise ends of the steel plate S with a predetermined interval. , 11b and a moving mechanism for moving the scattered coating liquid recovery plates 11a, 11b along the width direction of the steel plate S. Thereby, even when the plate width of the steel plate S is changed, it is possible to suppress the splashing coating liquid from the steel plate S or the edge portion of the accessory roll from entering the through-plate 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, cutouts 14a and 14b are provided at the ends of the scattered coating liquid recovery plates 11a and 11b so that both widthwise ends of the steel plate S may pass through the cutouts 14a and 14b. desirable. According to such a configuration, the area where the splash coating liquid recovery plates 11a and 11b cover the passage opening 2a can be increased, so that the splash coating liquid from the edge portion of the steel plate S or the auxiliary roll can reach the passage opening 2a. It is possible to further suppress the infiltration and further suppress the occurrence of surface defects on the steel plate S.

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。  Although the embodiments to which the invention made by the present inventors has been applied have been described above, the present invention is not limited to the description and the drawings that form a part of the disclosure of the present invention according to the embodiments. That is, all other embodiments, examples, operation techniques and the like made by those skilled in the art based on the present embodiment are 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。  According to the present invention, it is possible to provide a continuous coating apparatus capable of suppressing the occurrence of surface defects on a steel plate even when the plate width of the steel plate changes.

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1 Continuous coating device 2 Floor plate 3 Precoat roll 4 Applicator roll 10 Scattering coating liquid collecting device 11a, 11b Scattering coating liquid collecting plate 12a1, 12a2, 12b1, 12b2 Guide rail 13a, 13b Width adjusting jig 14a, 14b Notch part S steel plate

Claims (1)

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、
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
ことを特徴とする連続塗布装置。 A continuous coating device for continuously coating a coating liquid by an applicator roll on the surface of a steel sheet conveyed vertically upward through a threaded plate opening,
Comprises a scattered coating liquid recovery device disposed between the applicator roll and the passage opening;
The scattering coating liquid recovery device is a scattering coating liquid recovery plate that covers the plate opening on the widthwise outer side of the steel plate, with the ends facing each other in the width direction of the steel plate with a predetermined interval. And a moving mechanism that moves the scattered coating liquid recovery plate along the width direction of the steel plate ,
A cutout is provided at the end of the scattered coating liquid recovery plate, and both widthwise ends of the steel plate pass through the cutout .
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