JP2011156447A - Intermittent coating method and intermittent coating device - Google Patents

Intermittent coating method and intermittent coating device Download PDF

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JP2011156447A
JP2011156447A JP2010017730A JP2010017730A JP2011156447A JP 2011156447 A JP2011156447 A JP 2011156447A JP 2010017730 A JP2010017730 A JP 2010017730A JP 2010017730 A JP2010017730 A JP 2010017730A JP 2011156447 A JP2011156447 A JP 2011156447A
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coating
roll
substrate
tension
base material
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JP5137090B2 (en
JP2011156447A5 (en
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Toshikazu Kawai
寿和 河合
Toru Nasu
徹 那須
Mitsuyuki Inoue
満之 井上
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Inoue Kinzoku Kogyo Co Ltd
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Inoue Kinzoku Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an intermittent coating method which enables the starting edge and the ending edge of a coating area to approach to linear lines without making them curbed significantly, as well as an intermittent coating device. <P>SOLUTION: The preset time T1 is set before/after the time at which the coating surface Wa of a base W begins to be brought into contact with a coating liquid on the outer circumferential surface of a coating roll 6 during coating operation. The preset time T2 is set before/after the time at which the coating surface Wa of the base W is made to break away from the coating liquid on the outer circumferential surface of the coating roll 6 during non-coating operation. The proceeding/receding position of a tension adjusting roll 4 is controlled following the forward/backward transfer of a coating changeover roll 3 so that the tension value of the base W within the preset time T1 and T2 is increased more than the tension value at any other time than the preset time T1 and T2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、回転する塗工ロールの外周面上に担持されている塗工液に対して長尺シート状の基材の塗工面を接触させ又は離反させることで、基材の塗工面に塗工域と非塗工域とを交互に形成する間欠塗工方法及び間欠塗工装置に関するものである。   In the present invention, the coating surface of a long sheet-like substrate is brought into contact with or separated from the coating liquid carried on the outer peripheral surface of the rotating coating roll, whereby the coating surface of the substrate is coated. The present invention relates to an intermittent coating method and an intermittent coating apparatus for alternately forming a work area and a non-coating area.

従来、間欠塗工装置は、基材走行路の非塗工面側を形成するように走行方向へ向かって順番に設けられた定位置の上流側の基準ロール、進退自在な作動ロール、進退自在なテンションロール及び定位置の下流側のガイドロールと、基準ロールと作動ロールとの間であって基材走行路の塗工面側の定位置に設けられた塗工ロールと、作動ロールを基材走行路の非塗工面側から塗工面側へ向かう方向に沿って進退させるサーボモータと、テンションロールを基材走行路の非塗工面側から塗工面側へ向かって押圧するエアーシリンダとを備え、作動ロールをサーボモータの回転力で進退させると共にテンションロールにエアーシリンダの押圧力をかけるようにしてある(特許文献1)。   Conventionally, the intermittent coating apparatus has an upstream reference roll at a fixed position, which is provided in order in the traveling direction so as to form the non-coating surface side of the substrate traveling path, an actuating roll that can move forward and backward, The tension roll and the guide roll on the downstream side of the fixed position, the coating roll provided between the reference roll and the working roll at the fixed position on the coating surface side of the substrate running path, and the working roll running on the substrate Operates with servo motors that advance and retreat along the direction from the non-coating surface side to the coating surface side of the road, and an air cylinder that presses the tension roll from the non-coating surface side to the coating surface side of the substrate running path The roll is advanced and retracted by the rotational force of the servo motor, and the pressing force of the air cylinder is applied to the tension roll (Patent Document 1).

上記間欠塗工装置による間欠塗工方法は、基準ロール及び作動ロールに巻き掛けて基材を走行させると共に、基準ロールと作動ロールの中間に位置する基材箇所に塗工剤を担持した塗布ロールを接触させて、基材の表面に塗布剤を転写して塗工膜を形成し、作動ロールを所定のタイミングで基材の表面(塗工面)から裏面(非塗工面)へ向かう方向へ後退させて基材を塗布ロールから離反させ、これに追従してテンションロールを基材の裏面から表面へ向かう方向へ前進させて基材に張力を付与し、その後に、作動ロールを所定のタイミングで基材の裏面から表面へ向かう方向へ前進させて基材を塗布ロールに接触させ、これに追従してテンションロールを基材の表面から裏面へ向かう方向へ後退させ、基材の表面に塗工膜を間欠的な配置で形成すると共に、基材に負荷される張力が常に一定となるように、作動ロールの前進・後退に連動してテンションロールを後退・前進させるように制御している。   The intermittent coating method using the above intermittent coating apparatus is a coating roll in which a base material is run around a reference roll and an operating roll, and a coating agent is carried on a base material located between the reference roll and the operating roll. To form a coating film by transferring the coating agent to the surface of the base material, and the working roll is retracted in a direction from the surface of the base material (coating surface) to the back surface (non-coating surface) at a predetermined timing. The base material is separated from the coating roll, the tension roll is advanced in the direction from the back surface to the front surface of the base material to apply tension to the base material, and then the working roll is moved at a predetermined timing. Advancing in the direction from the back surface to the front surface of the base material to bring the base material into contact with the coating roll, and following this, the tension roll is retracted in the direction from the front surface to the back surface of the base material and applied to the surface of the base material. In an intermittent arrangement of the membrane While forming, as the tension loaded on the substrate always becomes constant, it is controlled to retract, advance the tension roller in conjunction with the advance and return of the working roll.

テンションロールに押圧力をかけるエアーシリンダを制御するコントロールは、作動ロール用サーボモータを回転制御するタイミングでシリンダ作動部を介してエアーシリンダを作動させて、テンションロールを基材の表面から裏面へ向かう後退方向又は基材の裏面から表面へ向かう前進方向へ移動ないし変位させる制御を開始すると共に、基材に負荷されている張力による反力に対応したエアーシリンダのエアー圧力を検出する圧力検出部の検出値が常に一定値になるようにシリンダ作動部を介しエアーシリンダをフィードバック制御するようにしている。   The control for controlling the air cylinder that applies pressure to the tension roll operates the air cylinder via the cylinder actuating portion at the timing of controlling the rotation of the servo motor for the action roll, and moves the tension roll from the front surface to the back surface. Control of moving or displacing in the backward direction or the forward direction from the back surface to the front surface of the base material, and the pressure detection unit that detects the air pressure of the air cylinder corresponding to the reaction force due to the tension loaded on the base material The air cylinder is feedback-controlled through the cylinder operating section so that the detected value is always a constant value.

特開2007−117973JP2007-117973A

水平成分を含む進行方向へ走行する基材は、走行方向に沿う長手方向及び長手方向に直交する幅方向について、走行方向の張力の大きさに応じた撓み変形が生じている。幅方向の撓み変形については、基材の両端側から中央部へ向かって行く程に基材自重による撓み量が次第に大きくなると共に、低張力状態における中央部の撓み量が高張力状態に比べて大きくなる。走行中の基材は、幅方向の中央部が撓んだ状態で塗工ロール上の塗工液に対する接近を進行させると、塗工液への接触が幅方向の撓み量の大きな中央部から始まって両端側へ移行するのに伴い、図7(A)に示す如く、塗工域の始端縁が走行方向へ突出する湾曲状態となる。逆に、走行中の基材は、塗工ロール上の塗工液からの離反を進行させると、塗工液からの離反が撓み量の小さな両側から始まって中央部へ移行することになり、塗工域の終端縁が走行方向と逆方向へ突出する湾曲状態となる。   The base material that travels in the traveling direction including the horizontal component undergoes bending deformation according to the magnitude of the tension in the traveling direction in the longitudinal direction along the traveling direction and the width direction orthogonal to the longitudinal direction. Regarding the bending deformation in the width direction, the amount of bending due to the weight of the substrate gradually increases as it goes from both ends of the substrate toward the center, and the amount of bending at the center in the low tension state is larger than that in the high tension state. growing. When the traveling base material is made to approach the coating liquid on the coating roll in a state where the central part in the width direction is bent, the contact with the coating liquid starts from the central part where the bending amount in the width direction is large. As it starts and shifts to both ends, as shown in FIG. 7A, the starting edge of the coating area becomes a curved state protruding in the running direction. On the other hand, when the base material in running advances the separation from the coating liquid on the coating roll, the separation from the coating liquid starts from both sides with a small amount of deflection and shifts to the center part. The end edge of the coating area is in a curved state protruding in the direction opposite to the traveling direction.

ところで、基材は、塗工中のおける走行方向の張力について、基材表面(塗工面)に塗工ロールの外周面による擦り傷を生じさせることなく且つ最適塗工状態の維持のために、高い値に設定することができない。従来の間欠塗工装置による間欠塗工方法は、テンションロールの制御により基材に負荷される走行方向の張力を常に一定に保持させるようにしているため、高い値に設定することなく最適塗工状態の維持のための低い値に設定しなければならないので、塗工域の始端縁及び終端縁を大きく湾曲させることがある。塗工域の始端縁及び終端縁については、大きな湾曲により後行程等で不都合を招くことがあるため、大きく湾曲させることなく直線状に近づけたい要請がある。   By the way, a base material is high about the tension | tensile_strength of the running direction in coating, without producing the abrasion by the outer peripheral surface of a coating roll on a base-material surface (coating surface), and maintaining an optimal coating state. Cannot be set to a value. In the conventional intermittent coating method using the intermittent coating apparatus, the tension in the running direction applied to the substrate is always kept constant by controlling the tension roll, so that the optimum coating can be performed without setting a high value. Since it must be set to a low value for maintaining the state, the start edge and the end edge of the coating area may be greatly curved. Since the start edge and the end edge of the coating area may cause inconveniences in the subsequent process or the like due to the large curvature, there is a demand to make the coating area close to a straight line without being largely curved.

本発明は、上記要請に応えるために、塗工域の始端縁及び終端縁について大きく湾曲させることなく直線状に近づけることができる間欠塗工方法及び間欠塗工装置の提供を目的とするものである。   The present invention aims to provide an intermittent coating method and an intermittent coating apparatus that can be made to approach a straight line without greatly bending the start edge and the end edge of the coating area in order to meet the above requirements. is there.

塗工域の始端縁及び終端縁について大きく湾曲させることなく直線状に近づけることができるようにするために請求項1記載の本発明が採用した手段は、図4に示す如く、基材走行方向(矢符S方向)へ向かって順番に設けられた定位置の上流側基準ロール2、進退自在な塗工切替用ロール3、進退自在な張力調整用ロール4及び定位置の下流側基準ロール5で基材Wの非塗工面Wbを支持案内しつつ張力を負荷した状態で基材Wを走行させ、基材走行中に、塗工切替用ロール3を基材Wの非塗工面Wb側から塗工面Wa側へ向かって非塗工操作位置Dから塗工操作位置Eまで前進させると共に張力調整用ロール4を基材Wの塗工面Wa側から非塗工面Wb側へ向かって非塗工操作位置Fから塗工操作位置Gまで後退させて、上流側基準ロール2と塗工切替用ロール3との間であって基材Wの塗工面Wa側の定位置に設けられた回転する塗工ロール6の外周面6a上の塗工液に基材Wの塗工面Waを接触させて塗工域K(図7(B)参照)を形成する塗工操作と、基材走行中に、塗工切替用ロール3を塗工操作位置Eから非塗工操作位置Dまで後退させると共に張力調整用ロール4を塗工操作位置Gから非塗工操作位置Fまで前進させて、塗工ロール6の外周面上の塗工液から基材Wの塗工面Waを離反させて非塗工域J(図7(B)参照)を形成する非塗工操作とを交互に繰返す間欠塗工方法において、塗工操作における塗工ロール6の外周面上の塗工液に対する基材Wの塗工面Waの接触を始めさせる時の前後に設定した設定時間T1(図6参照)、及び非塗工操作おける塗工ロール6の外周面上の塗工液に対する基材Wの塗工面Waの離反を始めさせる時の前後に設定した設定時間T2(図6参照)の各時間内おける基材Wの張力値が、これら設定時間以外における張力値よりも増大するように、塗工切替用ロール3の進退移動に追従して張力調整用ロール4の進退位置を制御することを特徴とする間欠塗工方法である。   The means employed by the present invention according to claim 1 in order to make it possible to make the start edge and the end edge of the coating area close to a straight line without being greatly curved, as shown in FIG. The upstream reference roll 2 at a fixed position, the coating switching roll 3 that can move forward and backward, the tension adjusting roll 4 that can move forward and backward, and the downstream reference roll 5 at a fixed position that are provided in order toward the arrow S direction. The base material W is run in a state where tension is applied while supporting and guiding the non-coated surface Wb of the base material W, and the coating switching roll 3 is moved from the non-coated surface Wb side of the base material W while the base material is running. Advancing from the non-coating operation position D to the coating operation position E toward the coating surface Wa side and the non-coating operation of the tension adjusting roll 4 from the coating surface Wa side of the substrate W toward the non-coating surface Wb side Retract from position F to coating operation position G, upstream reference low The coating of the substrate W is applied to the coating liquid on the outer peripheral surface 6a of the rotating coating roll 6 provided between the coating roller 2 and the coating switching roll 3 at a fixed position on the coating surface Wa side of the substrate W. A coating operation in which the work surface Wa is brought into contact with each other to form a coating area K (see FIG. 7B), and the coating switching roll 3 is moved from the coating operation position E to the non-coating operation position while the substrate is running. The tension adjusting roll 4 is moved backward from the coating operation position G to the non-coating operation position F, and the coating surface Wa of the substrate W is separated from the coating liquid on the outer peripheral surface of the coating roll 6. In the intermittent coating method in which the non-coating operation for forming the non-coating zone J (see FIG. 7B) is alternately repeated, the coating liquid on the outer peripheral surface of the coating roll 6 in the coating operation is applied. Set time T1 (see FIG. 6) set before and after the start of contact of the coating surface Wa of the substrate W, and coating in a non-coating operation The tension value of the base material W in each time of the set time T2 (see FIG. 6) set before and after starting the separation of the coating surface Wa of the base material W with respect to the coating liquid on the outer peripheral surface of the tool 6 is The intermittent coating method is characterized by controlling the advancing / retreating position of the tension adjusting roll 4 so as to follow the advancing / retreating movement of the coating switching roll 3 so as to increase the tension value outside these set times. .

塗工域の始端縁及び終端縁について大きく湾曲させることなく直線状に近づけることができるようにするために請求項2記載の本発明が採用した手段は、図4に示す如く、基材走行路Rの非塗工面Rb側を形成するように基材走行方向(矢符S方向)へ向かって順番に設けられた定位置の上流側基準ロール2、進退自在な塗工切替用ロール3、進退自在な張力調整用ロール4及び定位置の下流側基準ロール5と、上流側基準ロール2と塗工切替用ロール3との間であって基材走行路Rの塗工面Ra側の定位置に設けられた塗工ロール6と、塗工切替用ロール3を基材走行路Rの非塗工面Rb側から塗工面Rb側へ向かって非塗工操作位置Dから塗工操作位置Eまで進退させると共にこの間を逆方向へ向かって前進させる塗工切替用ロール用操作装置7と、張力調整用ロール4を基材走行路Rの塗工面Ra側から非塗工面Rb側へ向かって非塗工操作位置Fから塗工操作位置Gまで後退させると共にこの間を逆方向へ向かって前進させる張力調整用ロール用操作装置8と、塗工切替用ロール用操作装置7及び張力調整用ロール用操作装置8を制御して、塗工ロール6の外周面6aに基材走行路Rの塗工面Ra側を接触又は塗工接近せさる塗工操作と塗工ロール6の外周面6aから基材走行路Rの塗工面Ra側を離反させる非塗工操作とを繰り返させる制御装置9と、を備えた間欠塗工装置1であって、前記制御装置9は、基材走行路Rの上流側基準ロール2から下流側基準ロール5へ至る基材パスラインPL(図6参照)の寸法値について、塗工操作における塗工ロール6の外周面6aに対する基材走行路Rの塗工面側の接触又は塗工接近を始めさせる時の前後に設定した設定時間T1、及び非塗工操作おける塗工ロール6の外周面6aから基材走行路Rの塗工面Ra側の離反を始めさせる時の前後に設定した設定時間T2の各時間内におけ寸法値が、これら設定時間以外における寸法値よりも増大するように、塗工切替用ロール3の進退移動に追従して張力調整用ロール4の進退位置の制御を行なうことを特徴とする間欠塗工装置である。   The means adopted by the present invention as claimed in claim 2 in order to make it possible to make the start edge and the end edge of the coating area close to a straight line without being greatly curved, as shown in FIG. An upstream reference roll 2 in a fixed position, which is provided in order in the base material traveling direction (arrow S direction) so as to form the non-coating surface Rb side of R, a coating switching roll 3 which can freely advance and retreat, and advance and retreat Between the flexible tension adjusting roll 4 and the downstream reference roll 5 at a fixed position, and between the upstream reference roll 2 and the coating switching roll 3, at a fixed position on the coating surface Ra side of the substrate traveling path R. The provided coating roll 6 and the coating switching roll 3 are moved back and forth from the non-coating operation position D to the coating operation position E from the non-coating surface Rb side of the substrate traveling path R toward the coating surface Rb side. In addition, the coating switching roll operation is advanced in the opposite direction. The apparatus 7 and the tension adjusting roll 4 are retracted from the non-coating operation position F to the coating operation position G from the coating surface Ra side of the base material traveling path R toward the non-coating surface Rb side, and in the opposite direction. The tension adjusting roll operating device 8 to be moved forward, the coating switching roll operating device 7 and the tension adjusting roll operating device 8 are controlled, and the substrate running path is formed on the outer peripheral surface 6 a of the coating roll 6. A control device that repeats a coating operation for bringing the coating surface Ra side of R into contact with or approaching the coating and a non-coating operation for separating the coating surface Ra side of the substrate traveling path R from the outer peripheral surface 6a of the coating roll 6 9, the control device 9 is a base material pass line PL from the upstream side reference roll 2 to the downstream side reference roll 5 of the base material traveling path R (see FIG. 6). The outer peripheral surface 6 of the coating roll 6 in the coating operation Of the base material travel path R from the set time T1 set before and after starting the coating surface side contact or the coating approach of the base material travel path R and the outer peripheral surface 6a of the coating roll 6 in the non-coating operation. The forward / backward movement of the coating switching roll 3 is performed so that the dimensional value at each of the set times T2 set before and after starting the separation on the coating surface Ra side is larger than the dimensional values at times other than these set times. The intermittent coating apparatus is characterized in that the advance / retreat position of the tension adjusting roll 4 is controlled following the movement.

請求項1記載の本発明に係る間欠塗工方法は、塗工ロールの外周面上の塗工液に対する基材の塗工面の接触を始めさせる時の前後の設定時間及び塗工ロールの外周面上の塗工液から基材の塗工面を離反させ始める時の前後の設定時間の各時間内において、基材の張力についてこれら設定時間以外における張力値よりも増大させて、基材の幅方向の撓み量を小さくすることで、塗工ロール上の塗工液に対する基材の幅方向の両端側と中央部との接触を始める時間差又は離反を始める時間差の各々を小さくして、従来の基材に負荷される張力が常時一定となる場合に比べて、塗工域の始端及び終端について大きく湾曲させることなく直線状に近づけることができる。   The intermittent coating method according to the first aspect of the present invention is the set time before and after the start of contact of the coating surface of the substrate with the coating liquid on the outer circumferential surface of the coating roll and the outer circumferential surface of the coating roll. Within each set time before and after starting to separate the coated surface of the base material from the upper coating liquid, the base material tension is increased more than the tension value other than these set times, and the width direction of the base material By reducing the amount of bending of each of the conventional rolls, the time difference for starting contact or the time difference for starting separation between the both ends in the width direction of the substrate with respect to the coating liquid on the coating roll and the central portion is reduced. Compared to the case where the tension applied to the material is always constant, the start and end of the coating area can be made closer to a straight line without being greatly bent.

請求項2記載の本発明に係る間欠塗工装置は、塗工ロールの外周面に塗工液を担持させて基材走行路を走行する基材に間欠塗工を行なうときに、塗工ロールの外周面上の塗工液に対する基材の塗工面の接触を始めさせる時の前後の設定時間及び塗工ロールの外周面上の塗工液から基材の塗工面を離反させ始める時の前後の設定時間の各時間内において、基材パスラインの寸法についてこれら設定時間以外における寸法値よりも増大させるのに伴い、基材の張力をこれら設定時間以外における張力値よりも増大させて、基材の幅方向の撓み量を小さくすることで、塗工ロール上の塗工液に対する基材の幅方向の両端側と中央部との接触を始める時間差又は離反を始める時間差の各々を小さくして、従来の基材に負荷される張力が常に一定となる場合に比べて、塗工域の始端及び終端について大きく湾曲させることなく直線状に近づけることができる。   The intermittent coating apparatus according to the second aspect of the present invention provides a coating roll when intermittent coating is performed on a substrate traveling on a substrate traveling path by supporting a coating liquid on the outer peripheral surface of the coating roll. Set time before and after starting the contact of the coated surface of the substrate with the coating liquid on the outer peripheral surface of the substrate, and before and after starting to separate the coated surface of the substrate from the coating liquid on the outer peripheral surface of the coating roll Within each of the set times, the substrate pass line dimensions are increased from those other than these set times, and the substrate tension is increased above these other set times. By reducing the amount of bending in the width direction of the material, each of the time difference for starting contact or the time difference for starting separation between the both ends in the width direction of the substrate with respect to the coating liquid on the coating roll and the central portion is reduced. The tension applied to the conventional substrate is always constant Compared to if, can be brought close to a straight line without being bent largely for beginning and end of the coating zone.

本発明に係る間欠塗工方法及び間欠塗工装置(以下、「本発明塗工方法」及び「本発明塗工装置」と言う。)の実施の形態を示すものであって、本発明塗工装置1の待機状態を示す正面図である。1 shows an embodiment of an intermittent coating method and an intermittent coating apparatus (hereinafter referred to as “the present invention coating method” and “the present invention coating apparatus”) according to the present invention. 3 is a front view showing a standby state of the device 1. FIG. 図1のII−II線における右側断面図であって、昇降フレーム13が待機位置Mに位置している状態を示している。FIG. 2 is a right sectional view taken along line II-II in FIG. 1, showing a state in which the elevating frame 13 is located at a standby position M. 本発明塗工装置1の非塗工操作の状態(基材Wが塗工ロール6の外周面6a上の塗工液(図示略)から離反している状態)を示す右側断面図である。3 is a right sectional view showing a state of a non-coating operation of the present coating apparatus 1 (a state where the base material W is separated from a coating liquid (not shown) on the outer peripheral surface 6a of the coating roll 6). FIG. 本発明塗工装置1の要部を拡大したものであって、図(A)は非塗工操作の状態を実線で示すと共に塗工操作の状態(基材Wが塗工ロール6の外周面6a上の塗工液(図示略)に接触している状態)を二点鎖線で示す右側断面図、図(B)及び図(C)はロール用操作装置7(8)を概略的に示す側面図である。The main part of this invention coating apparatus 1 is expanded, Comprising: FIG. (A) shows the state of non-coating operation with a continuous line, and the state of coating operation (the base material W is the outer peripheral surface of the coating roll 6). FIG. 6B is a right cross-sectional view showing a coating solution (not shown) on 6a in a state of being in contact with a two-dot chain line, and FIG. 5B and FIG. 5C schematically show the roll operating device 7 (8). It is a side view. 本発明塗工装置1の要部を拡大したものであって、塗工操作の状態を示す右側断面図である。It is the right side sectional view which expands the important section of the present invention coating device 1, and shows the state of coating operation. 図(A)は塗工切替用ロール3及び張力調整用ロール4の進退方向の位置(縦軸)と操作の経過時間(横軸)との関係を示すグラフ、図(B)は基材パスラインPLの寸法(縦軸)と操作の経過時間(横軸)との関係を示すグラフ、図(C)は基材Wの張力(縦軸)と操作の経過時間(横軸)との関係を示すグラフ、図(D)は塗工ロール6の外周面6aの周速度(縦軸)と操作の経過時間(横軸)との関係を示すグラフ、図(E)は塗工ロール6の外周面6aに対する基材Wの状態と操作の経過時間(横軸)との関係を示すもの、図(F)は各時間帯と操作の経過時間(横軸)との関係を示すものである。Fig. (A) is a graph showing the relationship between the position (vertical axis) in the advancing and retreating direction of the coating switching roll 3 and the tension adjusting roll 4 and the elapsed time (horizontal axis) of the operation, and Fig. (B) is the substrate path A graph showing the relationship between the dimension of the line PL (vertical axis) and the elapsed time of operation (horizontal axis), FIG. (C) is the relationship between the tension (vertical axis) of the substrate W and the elapsed time of operation (horizontal axis). (D) is a graph showing the relationship between the peripheral speed (vertical axis) of the outer peripheral surface 6a of the coating roll 6 and the elapsed time (horizontal axis) of the operation, and FIG. The relationship between the state of the base material W with respect to the outer peripheral surface 6a and the operation elapsed time (horizontal axis) is shown. FIG. (F) shows the relationship between each time zone and the operation elapsed time (horizontal axis). . 図(A)は従来の塗工状態を示す平面図、図(B)は本発明に係る間欠塗工方法及び間欠塗工装置による塗工状態を示す平面図である。FIG. 1A is a plan view showing a conventional coating state, and FIG. 1B is a plan view showing a coating state by an intermittent coating method and an intermittent coating apparatus according to the present invention.

本発明塗工装置1は、図1乃至図3に示す如く、フレーム構造として、左右方向(後述する各ローラの長手方向)へ延びる連結フレーム10,10…と、連結フレーム10,10…で連結した左右の固定フレーム11,11と、左右の固定フレーム11,11の各々に昇降案内装置12を介して昇降自在に設けた左右の昇降フレーム13,13とで構成してある。昇降案内装置12は、固定フレーム11に取付けた案内レール17と、昇降フレーム13に取付けて案内レール17に案内させたスライダー18と、昇降フレーム13を上方の待機位置M(図2参照)と下方の塗工操作位置N(図3参照)の間で移動させるエアーシリンダー等からなる移動操作具19とからなる。   As shown in FIGS. 1 to 3, the coating apparatus 1 of the present invention has a frame structure that is connected by connecting frames 10, 10... Extending in the left-right direction (longitudinal direction of each roller described later) and connecting frames 10, 10. The left and right fixed frames 11, 11, and the left and right fixed frames 11, 11 are provided with left and right lift frames 13, 13 provided to be movable up and down via a lift guide device 12. The elevating guide device 12 includes a guide rail 17 attached to the fixed frame 11, a slider 18 attached to the elevating frame 13 and guided to the guide rail 17, and an upper standby position M (see FIG. 2) below the elevating frame 13. The movement operation tool 19 which consists of an air cylinder etc. which are moved between the coating operation positions N (refer FIG. 3) is comprised.

本発明塗工装置1は、上記フレーム構造に配設したロール群で、基材Wを走行させるための基材走行路Rを形成するようにしてある。ロール群は、図3に示す如く、基材走行路Rの非塗工面Rb側を形成するように、走行方向(矢符S方向)へ向かって(すなわち、基材走行路Rの上流側から下流側へ向かって)順番に設けた定位置の上流側基準ロール2、進退自在な塗工切替用ロール3、進退自在な張力調整用ロール4及び定位置の下流側基準ロール5と、上流側基準ロール2と塗工切替用ロール3の間であって基材走行路Rの塗工面Ra側を形成する定位置の塗工ロール6と、上流側基準ロール2より更に上流側の基材走行路Rを形成する定位置のガイドロール21,21と、下流側基準ロール5より更に下流側の基材走行路Rの非塗工面Rb側を形成する定位置のガイドロール22とを備えている。ガイドロール21,21より更に上流側には、基材走行路Rを形成するフイードロール(図示略)を設けてある。   The coating apparatus 1 of the present invention is configured to form a base material traveling path R for traveling the base material W by a group of rolls arranged in the frame structure. As shown in FIG. 3, the roll group is directed toward the traveling direction (the direction of the arrow S) so as to form the non-coated surface Rb side of the substrate traveling path R (that is, from the upstream side of the substrate traveling path R). The upstream reference roll 2 in a fixed position in order (toward the downstream side), the coating switching roll 3 that can move forward and backward, the tension adjustment roll 4 that can move forward and backward, the downstream reference roll 5 in a fixed position, and the upstream side A coating roll 6 at a fixed position between the reference roll 2 and the coating switching roll 3 and forming the coating surface Ra side of the substrate traveling path R, and a substrate traveling further upstream than the upstream reference roll 2. Fixed position guide rolls 21, 21 that form the path R, and fixed position guide rolls 22 that form the non-coating surface Rb side of the base material traveling path R further downstream than the downstream side reference roll 5 are provided. . A feed roll (not shown) for forming the substrate traveling path R is provided further upstream than the guide rolls 21 and 21.

前記左右の固定フレーム11,11は、図3に示す如く、前記上流側のガイドロール21,21及び下流側のガイドロール22と、塗工ロール6とを所定の定位置に架設してある。また、前記左右の昇降フレーム13,13は、前記上流側基準ロール2及び下流側基準ロール5を架設し、下方の塗工操作位置Nに停止させることで、上流側基準ロール2及び下流側基準ロール5を所定の定位置に停止させ、また、上方の待機位置M(図2参照)に停止させることで、上流側基準ロール2及び下流側基準ロール5を待機位置に停止させるようにしてある。更に、左右の昇降フレーム13,13は、左右の塗工切替用ロール用操作装置7,7及び左右の張力調整用ロール用操作装置8,8が取付けられ、塗工切替用ロール用操作装置7,7を介して塗工切替用ロール3を進退自在に設けると共に、張力調整用ロール用操作装置8,8を介して張力調整用ロール4を進退自在に設けてある。   As shown in FIG. 3, the left and right fixed frames 11, 11 are constructed such that the upstream guide rolls 21, 21 and the downstream guide roll 22, and the coating roll 6 are installed at predetermined fixed positions. The left and right elevating frames 13 and 13 are constructed such that the upstream reference roll 2 and the downstream reference roll 5 are installed and stopped at the lower coating operation position N, so that the upstream reference roll 2 and the downstream reference roll 5 are stopped. The upstream reference roll 2 and the downstream reference roll 5 are stopped at the standby position by stopping the roll 5 at a predetermined fixed position and stopping at the upper standby position M (see FIG. 2). . Further, the left and right lifting frames 13 and 13 are provided with left and right coating switching roll operating devices 7 and 7 and left and right tension adjusting roll operating devices 8 and 8, respectively. , 7 is provided so that the coating switching roll 3 can be moved forward and backward, and the tension adjusting roll 4 is provided so as to be movable forward and backward via the tension adjusting roll operating devices 8, 8.

図3に示す如く、前記基材走行路Rの非塗工面Rb側を形成する上流側基準ロール2、塗工切替用ロール3、張力調整用ロール4及び下流側基準ロール5は、基材走行路Rを走行する基材Wの非塗工面Wbを案内するものであって、回転自在なフリーロールとしてある。上流側基準ロール2、塗工切替用ロール3及び張力調整用ロール4は、ロール外周面の直径が40mm〜80mm(好ましくは、45〜60mm)の範囲内であるものを用いる。上流側のガイドロール21,21及び下流側のガイドロール22は、ロール外周面の直径が100mm〜150mmの範囲内であるものを用いを、上流側のガイドロール21,21を回転自在なフリーロールにすると共に、下流側のガイドロール22を駆動装置(図示略)で強制駆動する駆動ロールにしてある。ガイドロール21,21より更に上流側に設けたフイードロール(図示略)は、駆動装置(図示略)で強制駆動する駆動ロールにしてあり、駆動ロールである下流側のガイドロール22と共に、基材Wを駆動して設定速度で走行させるようにしてある。なお、下流側のガイドロール22は、ロール外周面と巻掛け角度の小さな基材Wとの間の滑りを排除して基材Wを設定速度で確実に駆動させるために、ロール外周面に吸引口を開設した吸引式とすることもある。駆動ロールである上流側のフイードロール(図示略)及び下流側のガイドロール22は、各ロールを中心として基材Wの上流側の張力と下流側の張力が影響し合わないようにするテンションカット機能を有するため、基材Wの上流側基準ロール2から下流側基準ロール5へ至る間の基材Wの走行方向の張力を一時的に高めることができるようにすることができる。   As shown in FIG. 3, the upstream reference roll 2, the coating switching roll 3, the tension adjusting roll 4, and the downstream reference roll 5 that form the non-coating surface Rb side of the substrate running path R It guides the non-coated surface Wb of the substrate W traveling on the road R, and is a free-rolling roll. As the upstream reference roll 2, the coating switching roll 3, and the tension adjusting roll 4, those having a roll outer peripheral surface diameter in the range of 40 mm to 80 mm (preferably 45 to 60 mm) are used. The upstream guide rolls 21 and 21 and the downstream guide roll 22 have a roll outer diameter within a range of 100 mm to 150 mm, and the upstream guide rolls 21 and 21 are freely rotatable. In addition, the downstream guide roll 22 is a drive roll that is forcibly driven by a drive device (not shown). A feed roll (not shown) provided further upstream than the guide rolls 21 and 21 is a drive roll that is forcibly driven by a drive device (not shown), and together with the downstream guide roll 22 that is a drive roll, the substrate W To drive at a set speed. The downstream guide roll 22 is sucked to the outer peripheral surface of the roll in order to eliminate the slip between the outer peripheral surface of the roll and the base material W having a small winding angle and to drive the base material W at a set speed. It may be a suction type with a mouth open. The upstream feed roll (not shown), which is a driving roll, and the downstream guide roll 22 have a tension cut function that prevents the upstream tension and the downstream tension of the base material W from affecting each other around each roll. Therefore, it is possible to temporarily increase the tension in the traveling direction of the substrate W from the upstream reference roll 2 to the downstream reference roll 5 of the substrate W.

前記塗工ロール6は、ロール外周面の直径が40mm〜80mm(好ましくは、45〜55mm)の範囲内であるものを用い、駆動装置34(図1参照)で強制駆動することで、ロール外周面6aに担持させてある塗工液(図示略)を、基材走行路Rを走行する基材Wの塗工面Waに転写して塗布するようにしてある。また、塗工ロール6は、可変速できるように駆動され、ロール外周面6aから基材Wが離反を始める瞬間の前後に設定した設定時間T3(図6参照)だけ減速(図6(D)参照)させ、ロール外周面6aから塗工液の飛び跳ねを抑制しつつ基材Wを円滑に離反させるようにしてある。   The coating roll 6 has a roll outer peripheral surface having a diameter of 40 mm to 80 mm (preferably 45 to 55 mm) and is forcibly driven by a driving device 34 (see FIG. 1), so that the outer circumference of the roll The coating liquid (not shown) carried on the surface 6a is transferred and applied to the coating surface Wa of the substrate W traveling on the substrate traveling path R. Further, the coating roll 6 is driven so as to be capable of variable speed, and decelerates for a set time T3 (see FIG. 6) set before and after the moment when the base material W starts to separate from the roll outer peripheral surface 6a (see FIG. 6D). The base material W is smoothly separated while suppressing the splashing of the coating liquid from the outer peripheral surface 6a of the roll.

前記塗工ロール6を有する塗工手段39は、図1乃至図3に示す如く、外周面6aに凹部を設けたグラビア形式の塗工ロール6の他に、塗工ロール6の外周面6aに塗工液を付着させる塗工液付着槽35と、塗工ロール6の外周面6aに付着した余分な塗工液を掻取るドクター37と、塗工液付着槽35を待機位置(図2に示す位置)から付着位置(図3に示す位置)まで昇降せさる槽昇降装置36と、ドクター37を待機位置(図2に示す位置)から掻取位置(図3に示す位置)まで進退せさるドクター移動装置38とを備えている。槽昇降装置36及びドクター移動装置38は、左右の固定フレーム11,11に取付けてある。塗工ロール6は、基材Wの走行方向と逆方向へ外周面6aを回転させ、外周面6aの凹部内に担持させた塗工液を基材Wの塗工面Waに転写するリバースのキス塗工方式となるようにしてある。塗工ロール6は、グラビア形式以外に、棒状材の外周面に細い線材を巻き付け、線材の間に形成される螺旋溝に塗工液を担持させるワイヤーバー方式を選択することも可能である。   As shown in FIGS. 1 to 3, the coating means 39 having the coating roll 6 is provided on the outer peripheral surface 6a of the coating roll 6 in addition to the gravure-type coating roll 6 provided with a recess on the outer peripheral surface 6a. The coating liquid adhesion tank 35 for adhering the coating liquid, the doctor 37 for scraping off the excess coating liquid adhered to the outer peripheral surface 6a of the coating roll 6, and the coating liquid adhesion tank 35 in the standby position (see FIG. 2). The tank lifting device 36 that moves up and down from the position shown in FIG. 3 to the attachment position (position shown in FIG. 3) and the doctor 37 are moved back and forth from the standby position (position shown in FIG. 2) to the scraping position (position shown in FIG. 3). A doctor movement device 38. The tank lifting device 36 and the doctor moving device 38 are attached to the left and right fixed frames 11, 11. The coating roll 6 rotates the outer peripheral surface 6a in the direction opposite to the traveling direction of the substrate W, and reverse kisses are transferred to the coating surface Wa of the substrate W on the coating liquid carried in the recesses of the outer peripheral surface 6a. It is designed to be a coating method. In addition to the gravure type, the coating roll 6 can also be selected from a wire bar system in which a thin wire is wound around the outer peripheral surface of the rod-shaped material and the coating liquid is supported in a spiral groove formed between the wires.

前記左右の塗工切替用ロール用操作装置7,7の各々は、図4に示す如く、塗工切替用ロール3を回転自在に支持すると共に昇降フレーム13(図1〜図3参照)に取付けた案内レール24に進退自在に案内させるスライダー25を取付けたロール支持部26と、昇降フレーム13に取付けた位置決め制御及び速度制御可能な電動サーボモータからなる駆動源27と、ロール支持部26と駆動源27の間に設けられ、電動サーボモータの回転出力をロール支持部26に伝達して塗工切替用ロール3を進退移動させる動力伝達機構28とを備えている。駆動源27は、プログラムテーブルを採用して、このテーブルに塗工切替用ロール3の停止位置及び通過位置、並びに、塗工切替用ロール3の進退移動時の速度及び加減時間等を設定するたけで、塗工切替用ロール3の後述する位置決めを簡単に実現できるようにしてある。動力伝達機構28は、駆動源27の出力軸27aに取着したクランク31と、クランク31及びロール支持部26に両端側を回り対偶(軸及び軸受けの組合せ)で連結した連結棒32とを備え、案内レール24、スライダー25及びクランク31との組合せでガタ付きの少なく応答性の良い四節連鎖からなる滑子クランク機構を構成している。左右の塗工切替用ロール用操作装置7,7は、左右の駆動源27,27を同期状態で運転することで、塗工切替用ロール3を基材走行路Rの非塗工面Rb側から塗工面Ra側へ向かって非塗工操作位置Dから塗工操作位置Eまでの間を平行状態を維持しつつ円滑且つ迅速に進退するようになっている。   As shown in FIG. 4, each of the left and right coating switching roll operating devices 7 and 7 rotatably supports the coating switching roll 3 and is attached to a lifting frame 13 (see FIGS. 1 to 3). A roll support portion 26 having a slider 25 attached to the guide rail 24 so as to be able to advance and retreat, a drive source 27 comprising an electric servomotor attached to the elevating frame 13 and capable of positioning control and speed control, and the roll support portion 26 and the drive. A power transmission mechanism 28 is provided between the power sources 27 and transmits the rotation output of the electric servo motor to the roll support 26 to move the coating switching roll 3 forward and backward. The drive source 27 adopts a program table and sets the stop position and the passing position of the coating switching roll 3 and the speed and adjustment time when the coating switching roll 3 moves forward / backward. Thus, the later-described positioning of the coating switching roll 3 can be easily realized. The power transmission mechanism 28 includes a crank 31 attached to the output shaft 27a of the drive source 27, and a connecting rod 32 that rotates around both ends of the crank 31 and the roll support portion 26 and is connected by a pair (a combination of a shaft and a bearing). The combination of the guide rail 24, the slider 25 and the crank 31 constitutes a slider crank mechanism comprising a four-bar chain with little play and good responsiveness. The left and right coating switching roll operating devices 7 and 7 operate the left and right drive sources 27 and 27 in a synchronized state so that the coating switching roll 3 can be moved from the non-coating surface Rb side of the substrate traveling path R. It smoothly and quickly advances and retracts while maintaining a parallel state from the non-coating operation position D to the coating operation position E toward the coating surface Ra.

また、前記左右の張力調整用ロール用操作装置8,8の各々は、図4に示す如く、前記記塗工切替用ロール用操作装置7と同様に構成され、張力調整用ロール用ロール4を回転自在に支持すると共に昇降フレーム13(図1〜図3参照)に取付けた案内レール24に進退自在に案内させるスライダー25を取付けたロール支持部26と、昇降フレーム13に取付けた位置決め制御及び速度制御可能な電動サーボモータからなる駆動源27と、ロール支持部26と駆動源27の間に設けられ、電動サーボモータの回転出力をロール支持部26に伝達して張力調整用ロール用ロール4を進退移動させる動力伝達機構28とを備えている。駆動源27は、プログラムテーブルを採用して、このテーブルに張力調整用ロール用ロール4の停止位置及び通過位置、並びに、塗工切替用ロール3の進退移動時の速度及び加減時間等を設定するたけで、張力調整用ロール用ロール4の後述する位置決めを簡単に実現できるようにしてある。動力伝達機構28は、駆動源27の出力軸27aに取着したクランク31と、クランク31及びロール支持部26に両端側を回り対偶(軸及び軸受けの組合せ)で連結した連結棒32とを備え、案内レール24、スライダー25及びクランク31との組合せでガタ付きの少なく応答性の良い四節連鎖からなる滑子クランク機構を構成している。左右の張力調整用ロール用操作装置8,8は、左右の駆動源27,27を同期状態で運転させることで、張力調整用ロール用ロール4を基材走行路Rの塗工面Ra側から非塗工面Rb側へ向かって非塗工操作位置Fから塗工操作位置Gまでの間を平行状態を維持しつつ円滑且つ迅速に進退するようになっている。   Each of the left and right tension adjusting roll operating devices 8 and 8 is configured in the same manner as the coating switching roll operating device 7 as shown in FIG. A roll support portion 26 having a slider 25 attached to the guide rail 24 attached to the elevating frame 13 (refer to FIGS. 1 to 3) and supported to be rotatable, and a positioning control and speed attached to the elevating frame 13 A drive source 27 composed of a controllable electric servo motor, and provided between the roll support portion 26 and the drive source 27, and transmits the rotation output of the electric servo motor to the roll support portion 26 so that the roll 4 for tension adjustment is provided. And a power transmission mechanism 28 that moves forward and backward. The drive source 27 adopts a program table, and sets a stop position and a passing position of the tension adjusting roll 4, a speed at the time of forward / backward movement of the coating switching roll 3, an adjustment time, and the like. Therefore, the tension adjusting roll 4 can be easily positioned as described later. The power transmission mechanism 28 includes a crank 31 attached to the output shaft 27a of the drive source 27, and a connecting rod 32 that rotates around both ends of the crank 31 and the roll support portion 26 and is connected by a pair (a combination of a shaft and a bearing). The combination of the guide rail 24, the slider 25 and the crank 31 constitutes a slider crank mechanism comprising a four-bar chain with little play and good responsiveness. The right and left tension adjusting roll operating devices 8 and 8 operate the left and right drive sources 27 and 27 in a synchronized state so that the tension adjusting roll 4 is removed from the coating surface Ra side of the substrate running path R. It smoothly and promptly advances and retracts while maintaining a parallel state from the non-coating operation position F to the coating operation position G toward the coating surface Rb side.

前記塗工切替用ロール用操作装置7,7及び張力調整用ロール用操作装置8,8を制御する制御装置9(図1参照)は、図4(A)に示す如く、塗工ロール6の外周面6aに基材走行路Rの塗工面Ra側を接触又は塗工接近(接触はさせないが塗工する状態まで接近)せさる塗工操作(図中に二点鎖線で示す状態)と塗工ロール6の外周面6aから基材走行路Rの塗工面Ra側を離反させる非塗工操作(図中に実線で示す状態)とを交互に繰り返すように、塗工切替用ロール用操作装置7,7及び張力調整用ロール用操作装置8,8の各駆動源27へ起動停止の信号を発信するものである。制御部9は、例えば図6に示す如く、移動する塗工切替用ロール3及び張力調整用ロール4の進退方向に沿った各位置(図(A)参照)、基材走行路Rの上流側基準ロール2から下流側基準ロール5へ至る基材パスラインPLの寸法値(図(B)参照)及び塗工ロール6の外周面6aに対する基材Wの状態(図(E)参照)の関係のデータを記憶する記憶部と、塗工切替用ロール3の移動の経過に伴って予め設定した基材パスラインPLの変化する寸法値を得るための張力調整用ロール4の移動させるべき位置を求める演算部、演算部の結果に基づいてロール用操作装置7,7及び8,8の各駆動源27のドライバー部に起動停止の信号を発信する指令部とを備えている。   The control device 9 (see FIG. 1) for controlling the coating switching roll operating devices 7 and 7 and the tension adjusting roll operating devices 8 and 8 includes a coating roll 6 as shown in FIG. Coating operation (the state indicated by a two-dot chain line in the figure) for bringing the coating surface Ra side of the substrate running path R into contact with the outer peripheral surface 6a or approaching the coating (approaching the coating state without contact) An operation device for a coating switching roll so as to alternately repeat a non-coating operation (a state indicated by a solid line in the figure) for separating the coating surface Ra side of the substrate traveling path R from the outer peripheral surface 6a of the work roll 6. 7 and 7 and a signal for starting and stopping are transmitted to the respective drive sources 27 of the tension adjusting roll operating devices 8 and 8. For example, as shown in FIG. 6, the control unit 9 is configured to move the coating switching roll 3 and the tension adjusting roll 4 in positions along the advancing / retreating direction (see FIG. 6A), upstream of the substrate traveling path R. Relationship between the dimension value of the substrate pass line PL from the reference roll 2 to the downstream reference roll 5 (see FIG. (B)) and the state of the substrate W with respect to the outer peripheral surface 6a of the coating roll 6 (see FIG. (E)). A position for moving the tension adjusting roll 4 for obtaining a dimensional value that changes in advance for the base material pass line PL as the coating switching roll 3 moves. And a command unit for transmitting a start / stop signal to the driver unit of each drive source 27 of the roll operating devices 7, 7 and 8, 8 based on the result of the calculation unit.

前記制御装置9の指令を受けた塗工切替用ロール用操作装置7,7及び張力調整用ロール用操作装置8,8は、例えば図6に示す如く、塗布切替用ロール3を非塗工装置位置Dから塗工操作位置Eへ向かって等速度(図(A)参照)で移動させるときに、張力調整用ロール4を非塗工装置位置Fから塗工操作位置Gへ向かって可変速度で移動(図(A)参照)させることで、塗工ロール6の外周面6aに対する基材Wの状態の変化(図(E)参照)に応じた基材パスラインPLの変化する寸法値(図6(B)参照)に設定することができると共に、塗布切替用ロール3を塗工操作位置Eから非塗工装置位置Dへ向かって等速度(図(A)参照)で移動させるときに、張力調整用ロール4を塗工操作位置Gから非塗工装置位置Fへ向かって可変速度で移動(図(A)参照)させることで、塗工ロール6の外周面6aに対する基材Wの状態の変化(図(E)参照)に応じた基材パスラインPLの変化する寸法値(図6(B)参照)に設定することができる。また、ロール用操作装置7,7及び8,8は、塗布切替用ロール3を塗工装置位置Eに停止させると共に張力調整用ロール4を塗工操作位置Gに停止させることで、基材パスラインPLの寸法を基準寸法に維持させ、更に、塗布切替用ロール3を非塗工装置位置Dにさせると共に張力調整用ロール4を非塗工操作位置Fに停止させることで、基材パスラインPLの寸法を基準寸法に維持させるようにしてある。   The coating switching roll operating devices 7 and 7 and the tension adjusting roll operating devices 8 and 8 that have received a command from the control device 9 are, for example, as shown in FIG. When the tension adjusting roll 4 is moved from the position D to the coating operation position E at a constant speed (see FIG. 1A), the tension adjusting roll 4 is moved from the non-coating apparatus position F to the coating operation position G at a variable speed. By moving (see FIG. (A)), the dimension value (FIG. 5) of the base material pass line PL corresponding to the change in the state of the base material W with respect to the outer peripheral surface 6a of the coating roll 6 (see FIG. (E)). 6 (B)), and when the application switching roll 3 is moved from the coating operation position E to the non-coating apparatus position D at a constant speed (see FIG. (A)), The tension adjusting roll 4 can be changed from the coating operation position G to the non-coating apparatus position F. Dimensional value for changing the substrate pass line PL in accordance with a change in the state of the substrate W with respect to the outer peripheral surface 6a of the coating roll 6 (see FIG. (E)) by moving it at a degree (see FIG. (A)). (See FIG. 6B). Further, the roll operating devices 7, 7, 8, and 8 stop the coating switching roll 3 at the coating device position E and stop the tension adjusting roll 4 at the coating operation position G. By maintaining the dimension of the line PL at the reference dimension, and further moving the application switching roll 3 to the non-coating apparatus position D and stopping the tension adjusting roll 4 to the non-coating operation position F, the substrate pass line The dimension of PL is maintained at the standard dimension.

塗工のために基材走行路Rを走行する基材Wは、上流側のガイドロール21,21及び下流側のガイドロール22の外周面上を滑らないように案内されることで、走行方向の張力について、上流側基準ロール2から下流側基準ロール5へ至る間の部分と、ガイドロール21,21より更に上流側部分及びガイドロール22より更に下流側部分との間でテンションカットされることになる。そのため、基材Wは、上流側基準ロール2から下流側基準ロール5へ至る基材パスラインPLの寸法値の変化に応じて、基材パスラインPLの部分で弾性変形が生じて張力も変化することになる(図6(B)(C)参照)。   The base material W traveling on the base material travel path R for coating is guided so as not to slide on the outer peripheral surfaces of the upstream guide rolls 21 and 21 and the downstream guide roll 22, so that the travel direction The tension is cut between the portion from the upstream reference roll 2 to the downstream reference roll 5 and the upstream portion from the guide rolls 21 and 21 and the downstream portion from the guide roll 22. become. Therefore, the base material W undergoes elastic deformation at the portion of the base material pass line PL in accordance with a change in the dimensional value of the base material pass line PL from the upstream side reference roll 2 to the downstream side reference roll 5, and the tension also changes. (See FIGS. 6B and 6C).

本出願の発明者は、図7(B)に示すように塗工域Kの始端縁及び終端縁について大きく湾曲させることなく直線状に近づけるために多くの実験を繰り返し、塗工ロール6に対する基材Wの接触を始める瞬間の前後、並びに、塗工ロール6に対する基材Wの離反を始める瞬間の前後の各々について、基材Wの走行方向の張力を一時的に高めて基材Wの幅方向(走行方向と直交す方向)の撓み量を小さくすることで達成できることを見出し、本発明に至った。本発明塗工装置1は、前記制御装置9から前記ロール用操作装置7,7及び8,8の各駆動源27に起動停止の指令を行い、基材走行路Rの上流側基準ロール2から下流側基準ロール5へ至る基材パスラインPLの寸法値について、塗工操作における塗工ロール6の外周面6aに対する基材走行路Rの塗工面Ra側(すなわち、基材Wの塗工面Wa側)の接触又は塗工接近を始めさせる時の前後に設定した設定時間T1(図6参照)、及び非塗工操作おける塗工ロール6の外周面6aから基材走行路Rの塗工面Ra側(すなわち、基材Wの塗工面Wa側)の離反を始めさせる時の前後に設定した設定時間T2の各時間内におけ寸法値が、これら設定時間T1,T2以外における寸法値(基準寸法値)よりも増大(図6(B)参照)するように、塗工切替用ロール3の進退移動に追従して張力調整用ロール4の進退位置の制御を行なうようにしてある。これら設定時間T1,T2は、この設定時間T1,T2内の基材Wの走行方向の移動寸法が5〜50mmの範囲内で設定できるように、基材Wの走行速度が5〜15m/mimのとき、2/100秒〜20/100秒の範囲内で選択される。基材パスラインPLの設定時間T1,T2以外における寸法値(基準寸法値)は、基材パスラインPLに位置する基材Wに対する塗工ロール6による塗工又は非塗工状態の基材Wの走行が円滑にできる基材Wの基準張力状態が得られる値に設定される。また、基材パスラインPLの設定時間T1,T2おける寸法値(基準寸法値)は、基材パスラインPLに位置する基材Wの塗工面Waが塗工ロール6の外周面6aに対して接触又は塗工接近(接触はさせないが塗工する状態まで接近)を始めるとき又は離反を始めるときに、基材Wの基材幅方向の撓み量を一時的に小さくして塗工域Kの始端及び終端を直線状に近づける(図7(B)参照)ことができる基材Wの高張力状態が得られる値に設定される。   As shown in FIG. 7B, the inventor of the present application repeated a number of experiments in order to make the starting edge and the ending edge of the coating area K close to a straight line without greatly bending, and the basis for the coating roll 6 was repeated. Before and after the moment when the material W starts to contact and before and after the moment when the base material W starts to separate from the coating roll 6, the tension in the running direction of the base material W is temporarily increased to increase the width of the base material W. The inventors have found that this can be achieved by reducing the amount of bending in the direction (direction perpendicular to the traveling direction), and have reached the present invention. The coating apparatus 1 of the present invention issues a start / stop command from the control device 9 to the drive sources 27 of the roll operating devices 7, 7, 8, and 8, and from the upstream reference roll 2 of the substrate running path R. About the dimension value of the substrate pass line PL reaching the downstream side reference roll 5, the coating surface Ra side of the substrate traveling path R with respect to the outer peripheral surface 6a of the coating roll 6 in the coating operation (that is, the coating surface Wa of the substrate W). Side) or set time T1 (see FIG. 6) set before and after starting the coating approach, and the coating surface Ra of the substrate travel path R from the outer peripheral surface 6a of the coating roll 6 in the non-coating operation. Dimension values within the set time T2 set before and after starting the separation of the side (that is, the coated surface Wa side of the substrate W) are dimension values (reference dimensions) other than the set times T1 and T2. Value) (see FIG. 6B) It is to perform the control of the forward and backward position of the tension adjusting roll 4 to follow the forward and backward movement of the coating switching rolls 3. These set times T1 and T2 are set such that the travel speed of the substrate W is 5 to 15 m / mim so that the movement dimension of the substrate W in the travel direction within the set times T1 and T2 can be set within a range of 5 to 50 mm. In this case, it is selected within the range of 2/100 seconds to 20/100 seconds. The dimension values (reference dimension values) other than the set times T1 and T2 of the base material pass line PL are applied by the coating roll 6 to the base material W located on the base material pass line PL or the base material W in a non-coated state. The reference tension state of the base material W that can smoothly travel is set to a value that can be obtained. In addition, the dimension value (reference dimension value) at the set times T1 and T2 of the base material pass line PL is such that the coating surface Wa of the base material W positioned on the base material pass line PL is relative to the outer peripheral surface 6a of the coating roll 6. When starting contact or coating approach (not touching but approaching to the coating state) or starting separation, the amount of deflection in the substrate width direction of the substrate W is temporarily reduced to reduce the coating area K. It is set to a value at which a high tension state of the base material W that can bring the start end and the end close to a straight line (see FIG. 7B) can be obtained.

本発明塗工装置1は、図1乃至図3に示す如く、昇降フレーム13を待機位置M(図2参照)まで昇降案内装置12で上昇させることで、最初に基材Wを基材走行路Rへ通す作業をし易くしてあるが、これに限定するものではなく図示は省略したが、昇降フレーム13に取付ける上流側基準ロール2、左右の塗工切替用ロール用操作装置7,7、左右の張力調整用ロール用操作装置8,8及び下流側基準ロール5を固定フレーム11,11に取付けると共に、塗工ロール6を有する塗工手段39を昇降フレームに取付け、最初に基材Wを基材走行路Rへ通すときに、塗工手段39を降下させて待機させるように構成することもある。   As shown in FIGS. 1 to 3, the coating apparatus 1 of the present invention first lifts the lifting frame 13 to the standby position M (see FIG. 2) by the lifting guide device 12, so that the substrate W is first moved to the substrate traveling path. Although it is easy to carry out the operation of passing through R, it is not limited to this and is not shown. However, the upstream side reference roll 2 attached to the elevating frame 13, the left and right coating switching roll operating devices 7, 7, The left and right tension adjusting roll operating devices 8 and 8 and the downstream reference roll 5 are attached to the fixed frames 11 and 11, and the coating means 39 having the coating roll 6 is attached to the elevating frame. When passing through the substrate running path R, the coating means 39 may be lowered to stand by.

本発明塗工装置1の基材走行路Rに基材W(例えば、厚みが10〜30μmの基材)を走行させて間欠塗工を行なう本発明塗工方法は、図3に示す定位置の上流側基準ロール2、進退自在な塗工切替用ロール3、進退自在な張力調整用ロール4及び定位置の下流側基準ロール5で基材Wの非塗工面Wbを支持案内しつつ設定した張力を負荷させた基準張力状態で基材Wを走行させ、基材走行中に、図4(A)に示す塗工切替用ロール用操作装置7,7で塗工切替用ロール3を基材Wの非塗工面Wb側から塗工面Wa側へ向かって非塗工操作位置Dから塗工操作位置Eまで前進させると共に張力調整用ロール用操作装置8,8で張力調整用ロール4を基材Wの塗工面Wa側から非塗工面Wb側へ向かって非塗工操作位置Fから塗工操作位置Gまで後退させて、上流側基準ロール2と塗工切替用ロール3との間であって基材Wの塗工面Wa側の定位置に設けられた回転する塗工ロール6の外周面6a上の塗工液に基材Wの塗工面Waを接触させて塗工域K(図7(B)参照)を形成する塗工操作を行なう塗工時間帯(図6参照)と、基材走行中に、図4(A)に示す塗工切替用ロール3を塗工操作位置Eから非塗工操作位置Dまで後退させると共に張力調整用ロール4を塗工操作位置Gから非塗工操作位置Fまで前進させて、塗工ロール6の外周面上の塗工液から基材Wの塗工面Waを離反させて非塗工域J(図7(B)参照)を形成する非塗工操作を行なう非塗工時間帯(図6参照)とを交互に繰返すことで、基材Wの塗工面Waに図7(B)に示す塗工域Kと非塗工域Jを交互に形成する。   The present coating method for performing intermittent coating by running a substrate W (for example, a substrate having a thickness of 10 to 30 μm) on the substrate running path R of the coating apparatus 1 of the present invention is the fixed position shown in FIG. The upstream reference roll 2, the advance / retreat coating switching roll 3, the forward / backward tension adjustment roll 4 and the downstream reference roll 5 at a fixed position are set while supporting and guiding the non-coating surface Wb of the substrate W. The base material W is run in a reference tension state where tension is applied, and the base material is moved to the base material by the coating changeover roll operating devices 7 and 7 shown in FIG. The W is advanced from the non-coating operation position D to the coating operation position E from the non-coating surface Wb side to the coating surface Wa side, and the tension adjusting roll 4 is used as the base material by the tension adjusting roll operating devices 8 and 8. From non-coating operation position F to coating operation position G from W coating surface Wa side to non-coating surface Wb side The coating on the outer peripheral surface 6a of the rotating coating roll 6 is moved backward and provided at a fixed position between the upstream reference roll 2 and the coating switching roll 3 and on the coating surface Wa side of the substrate W. A coating time zone (see FIG. 6) for performing a coating operation in which the coating surface Wa of the substrate W is brought into contact with the working liquid to form a coating area K (see FIG. 7B), and while the substrate is running 4A, the coating switching roll 3 shown in FIG. 4A is retracted from the coating operation position E to the non-coating operation position D and the tension adjusting roll 4 is moved from the coating operation position G to the non-coating operation position F. A non-coating operation is performed in which the coating surface Wa of the base material W is separated from the coating liquid on the outer peripheral surface of the coating roll 6 to form a non-coating area J (see FIG. 7B). By alternately repeating the non-coating time zone (see FIG. 6), the coating area K and the non-coating area J shown in FIG. 7B are alternately formed on the coating surface Wa of the substrate W. To do.

本発明塗工方法は、本発明塗工装置1の塗工切替用ロール用操作装置7,7及び張力調整用ロール用操作装置8,8に対する制御装置9の前述した特有の制御により、図6に示す如く、塗工ロール6の外周面6a上の塗工液に対する基材Wの塗工面Waの接触を始めさせる時の前後の設定時間T1及び塗工ロール6の外周面6a上の塗工液から基材Wの塗工面Waを離反させ始める時の前後の設定時間T2の各時間内において、基材Wの張力についてこれら設定時間T1,T2以外における基準張力値よりも増大させて、基材Wの幅方向(走行方向と直交す方向)の撓み量を小さくすることで、塗工ロール6上の塗工液に対する基材Wの幅方向の両端側と中央部との接触を始める時間差又は離反を始める時間差の各々を小さくして、塗工域Kの始端及び終端について大きく湾曲させることなく直線状に近づけることができる。本発明塗工方法は、塗工時間帯における設定時間T1,T2を除く時間帯では基材Wの張力を基準張力値にした状態で塗工ロール6の外周面6a上の塗工液に基材Wの塗工面Waの左右幅全域を接触させて、基材Wの幅方向(走行方向と直交す方向)の撓み量をゼロにして塗工操作を行なう。   The coating method of the present invention is performed by the above-described specific control of the control device 9 for the coating switching roll operating devices 7 and 7 and the tension adjusting roll operating devices 8 and 8 of the coating device 1 of the present invention. As shown in FIG. 4, the set time T1 before and after the start of contact of the coating surface Wa of the substrate W with the coating liquid on the outer peripheral surface 6a of the coating roll 6 and the coating on the outer peripheral surface 6a of the coating roll 6 Within each set time T2 before and after starting to separate the coating surface Wa of the substrate W from the liquid, the tension of the substrate W is increased above the reference tension value other than these set times T1 and T2, By reducing the amount of bending of the material W in the width direction (direction perpendicular to the traveling direction), the time difference at which contact between the both ends in the width direction of the substrate W and the center portion with respect to the coating liquid on the coating roll 6 starts. Alternatively, reduce the time difference at which separation starts and apply the coating area K. It can be brought close to a straight line without being bent largely for beginning and end. The coating method of the present invention is based on the coating liquid on the outer peripheral surface 6a of the coating roll 6 in a state where the tension of the substrate W is set to the reference tension value in the time zone excluding the set times T1 and T2 in the coating time zone. The entire left and right widths of the coating surface Wa of the material W are brought into contact with each other, and the coating operation is performed with the amount of bending in the width direction (direction perpendicular to the traveling direction) of the substrate W being zero.

本発明塗工装置1及び本発明塗工方法は、塗工操作における塗工ロール6の外周面上の塗工液に対する基材Wの塗工面Waの接触を始めさせる時の前後に設定した設定時間T1(図6参照)、及び非塗工操作おける塗工ロール6の外周面上の塗工液に対する基材Wの塗工面Waの離反を始めさせる時の前後に設定した設定時間T2の各時間内おける基材Wの張力値を、これら設定時間以外における張力値よりも増大させることで、従来の基材に負荷される張力が常時一定となる場合に比べて、塗工域Kの始端及び終端について大きく湾曲させることなく直線状に近づけることができる。   The coating apparatus 1 and the coating method of the present invention are set before and after starting the contact of the coating surface Wa of the substrate W with the coating liquid on the outer peripheral surface of the coating roll 6 in the coating operation. Each of time T1 (refer FIG. 6) and set time T2 set before and after starting separation of the coating surface Wa of the base material W with respect to the coating liquid on the outer peripheral surface of the coating roll 6 in non-coating operation. By increasing the tension value of the base material W in time over the tension values at times other than these set times, compared to the case where the tension applied to the conventional base material is always constant, the beginning of the coating area K And it can be approximated to a straight line without greatly bending the end.

従来の間欠塗工装置は、作動ロールの移動制御にエアーシリンダを用いるので、作動ロールの移動開始時から基材に負荷されていく張力に対応したエアーシリンダのエアー圧力の検出時までに時間を要すると共に、圧縮空気を用いるエアーシリンダの応答速度を速めることに限界がある。そのため、従来の間欠塗工装置は、生産性の向上を目的として基材の走行及び作動ロールの前進・後退の周期を早めようとしても、エアーシリンダの制御が追従できず、目的を達成できない。これに対して、本発明塗工装置1は、塗工切替用ロール用操作装置7,7及び張力調整用ロール用操作装置8,8に駆動源27として位置決め制御及び速度制御可能な電動サーボモータを用いることで、塗工切替用ロール3及び張力調整用ロール4を可及的に進退させて正確な塗工操作位置に停止させることが可能となり、基材の走行及び塗工切替用ロール3及び張力調整用ロール4の前進・後退の周期を早めて生産性の向上を従来に比べて飛躍的に向上させることができる。   Since the conventional intermittent coating apparatus uses an air cylinder for the movement control of the working roll, it takes time from the start of the movement of the working roll to the detection of the air pressure of the air cylinder corresponding to the tension applied to the substrate. In addition, there is a limit to increasing the response speed of the air cylinder using compressed air. For this reason, the conventional intermittent coating apparatus cannot follow the control of the air cylinder and cannot achieve the purpose even if it is attempted to speed up the cycle of the base material and the forward / backward movement of the working roll for the purpose of improving productivity. On the other hand, the coating apparatus 1 of the present invention is an electric servo motor capable of positioning control and speed control as a drive source 27 to the coating switching roll operating devices 7 and 7 and the tension adjusting roll operating devices 8 and 8. , The coating switching roll 3 and the tension adjusting roll 4 can be moved back and forth as much as possible to stop at the correct coating operation position. In addition, it is possible to dramatically improve the productivity as compared with the prior art by shortening the forward / backward cycle of the tension adjusting roll 4.

更に、本発明塗工装置1及び本発明塗工方法は、基材Wの張力値を高めることで塗工域K(図7(B)参照)の始端及び終端について大きく湾曲させることなく直線状に近づけることができるので、幅方向に撓み易い幅寸法の大きな幅寸法が1000mm程度の基材Wに間欠塗工を施すことが可能となり、基材幅寸法を500mm以上とすることができない従来に比べて生産性を飛躍的に向上させることができる。   Furthermore, the coating apparatus 1 and the coating method of the present invention increase the tension value of the base material W so that the coating area K (see FIG. 7 (B)) is linearly curved without being greatly curved at the start and end of the coating area K (see FIG. 7B). Therefore, it is possible to apply intermittent coating to the base material W having a large width dimension of about 1000 mm that is easily bent in the width direction, and the base material width dimension cannot be 500 mm or more. Compared with this, productivity can be dramatically improved.

2…上流側基準ロール、3…塗工切替用ロール、4…張力調整用ロール、5…下流側基準ロール、6…塗工ロール、7…塗工切替用ロール用操作装置、8…張力調整用ロール用操作装置、9…制御装置、10…連結フレーム、11…固定フレーム、12…昇降案内装置、13…昇降フレーム、17…案内レール、18…スライダー、19…移動操作具、21…ガイドロール、22…ガイドロール、24…案内レール、25…スライダー、26…ロール支持部、27…駆動源、27a…出力軸、28…動力伝達機構、31…クランク、32…連結棒、34…駆動装置、35…塗工液付着槽、36…昇降装置、37…ドクター、38…ドクター移動装置、39…塗工手段、D…非塗工操作位置(塗工切替用ロール3)、E…塗工操作位置(塗工切替用ロール3)、F…非塗工操作位置(張力調整用ロール4)、G…塗工操作位置(張力調整用ロール4)、K…塗工域、J…非塗工域、M…待機位置、N…塗工操作位置、PL…基材パスライン、R…基材走行路、Ra…塗工面、Rb…非塗工面、S…基材走行方向、T1…設定時間(塗工面Waの接触又は塗工接近を始める瞬間の前後)、T2…設定時間(塗工面Waの離反を始め瞬間の前後)、W…基材、Wa…塗工面、Wb…非塗工面 2 ... upstream reference roll, 3 ... coating switching roll, 4 ... tension adjusting roll, 5 ... downstream reference roll, 6 ... coating roll, 7 ... operating device for coating switching roll, 8 ... tension adjustment Operation device for rolls, 9 ... control device, 10 ... connecting frame, 11 ... fixed frame, 12 ... elevating guide device, 13 ... elevating frame, 17 ... guide rail, 18 ... slider, 19 ... moving operation tool, 21 ... guide Roll, 22 ... Guide roll, 24 ... Guide rail, 25 ... Slider, 26 ... Roll support, 27 ... Drive source, 27a ... Output shaft, 28 ... Power transmission mechanism, 31 ... Crank, 32 ... Connecting rod, 34 ... Drive 35: coating liquid adhesion tank, 36: lifting device, 37 ... doctor, 38 ... doctor movement device, 39 ... coating means, D ... non-coating operation position (coating switching roll 3), E ... coating Work operation position (coating cut Roll 3), F ... non-coating operation position (tension adjustment roll 4), G ... coating operation position (tension adjustment roll 4), K ... coating area, J ... non-coating area, M ... standby Position, N ... Coating operation position, PL ... Substrate pass line, R ... Substrate traveling path, Ra ... Coating surface, Rb ... Non-coating surface, S ... Base material traveling direction, T1 ... Set time (of coating surface Wa) Before and after the moment when contact or coating approach is started), T2 ... set time (before and after the start of separation of the coated surface Wa), W ... substrate, Wa ... coated surface, Wb ... non-coated surface

Claims (2)

基材走行方向へ向かって順番に設けられた定位置の上流側基準ロール、進退自在な塗工切替用ロール、進退自在な張力調整用ロール及び定位置の下流側基準ロールで基材の非塗工面を支持案内しつつ張力を負荷した状態で基材を走行させ、
基材走行中に、塗工切替用ロールを基材の非塗工面側から塗工面側へ向かって非塗工操作位置から塗工操作位置まで前進させると共に張力調整用ロールを基材の塗工面側から非塗工面側へ向かって非塗工操作位置から塗工操作位置まで後退させて、上流側基準ロールと塗工切替用ロールとの間であって基材の塗工面側の定位置に設けられた回転する塗工ロールの外周面上の塗工液に基材の塗工面を接触させて塗工域を形成する塗工操作と、基材走行中に、塗工切替用ロールを塗工操作位置から非塗工操作位置まで後退させると共に張力調整用ロールを塗工操作位置から非塗工操作位置まで前進させて、塗工ロールの外周面上の塗工液から基材の塗工面を離反させて非塗工域を形成する非塗工操作とを交互に繰返す間欠塗工方法において、
塗工操作における塗工ロールの外周面上の塗工液に対する基材の塗工面の接触を始めさせる時の前後に設定した設定時間、及び非塗工操作おける塗工ロールの外周面上の塗工液に対する基材の塗工面の離反を始めさせる時の前後に設定した設定時間の各時間内おける基材の張力値が、これら設定時間以外における張力値よりも増大するように、塗工切替用ロールの進退移動に追従して張力調整用ロールの進退位置を制御することを特徴とする間欠塗工方法。
Non-coating of the base material by the upstream reference roll at a fixed position, the coating switching roll that can be moved forward and backward, the tension adjustment roll that can be moved forward and backward, and the downstream reference roll at a fixed position that are provided in order in the substrate running direction. Run the substrate with tension applied while supporting and guiding the work surface,
While the substrate is running, the coating switching roll is advanced from the non-coating operation position to the coating operation position from the non-coating surface side of the substrate to the coating operation side, and the tension adjusting roll is moved to the coating surface of the substrate. Retreat from the non-coating operation position to the coating operation position from the side toward the non-coating surface side, and between the upstream reference roll and the coating switching roll, at a fixed position on the coating surface side of the substrate The coating operation for forming the coating area by bringing the coating surface of the substrate into contact with the coating liquid on the outer peripheral surface of the rotating coating roll provided, and the coating switching roll is applied while the substrate is running. Retract from the coating operation position to the non-coating operation position and advance the tension adjustment roll from the coating operation position to the non-coating operation position to apply the substrate coating surface from the coating liquid on the outer peripheral surface of the coating roll. In the intermittent coating method of alternately repeating the non-coating operation to form a non-coating area by separating the
The set time set before and after starting the contact of the coated surface of the substrate with the coating liquid on the outer circumferential surface of the coating roll in the coating operation, and the coating on the outer circumferential surface of the coating roll in the non-coating operation Change the coating so that the tension value of the base material within each set time set before and after starting the separation of the coated surface of the base material with respect to the working fluid will be greater than the tension value outside these set times. An intermittent coating method characterized by controlling the advance / retreat position of the tension adjusting roll following the advance / retreat movement of the roll.
基材走行路の非塗工面側を形成するように基材走行方向へ向かって順番に設けられた定位置の上流側基準ロール、進退自在な塗工切替用ロール、進退自在な張力調整用ロール及び定位置の下流側基準ロールと、
上流側基準ロールと塗工切替用ロールとの間であって基材走行路の塗工面側の定位置に設けられた塗工ロールと、
塗工切替用ロールを基材走行路の非塗工面側から塗工面側へ向かって非塗工操作位置から塗工操作位置まで進退させると共にこの間を逆方向へ向かって前進させる塗工切替用ロール用操作装置と、
張力調整用ロールを基材走行路の塗工面側から非塗工面側へ向かって非塗工操作位置から塗工操作位置まで後退させると共にこの間を逆方向へ向かって前進させる張力調整用ロール用操作装置と、
塗工切替用ロール用操作装置及び張力調整用ロール用操作装置を制御して、塗工ロールの外周面に基材走行路の塗工面側を接触又は塗工接近せさる塗工操作と塗工ロールの外周面から基材走行路の塗工面側を離反させる非塗工操作とを繰り返させる制御装置と、を備えた間欠塗工装置であって、
前記制御装置は、基材走行路の上流側基準ロールから下流側基準ロールへ至る基材パスラインの寸法値について、塗工操作における塗工ロールの外周面に対する基材走行路の塗工面側の接触又は塗工接近を始めさせる時の前後に設定した設定時間、及び非塗工操作おける塗工ロールの外周面から基材走行路の塗工面側の離反を始めさせる時の前後に設定した設定時間の各時間内におけ寸法値が、これら設定時間以外における寸法値よりも増大するように、塗工切替用ロールの進退移動に追従して張力調整用ロールの進退位置の制御を行なうことを特徴とする間欠塗工装置。
A fixed upstream reference roll provided in order toward the base material traveling direction so as to form the non-coating surface side of the base material travel path, a coating switching roll that can be moved forward and backward, and a tension adjustment roll that is movable forward and backward And a downstream reference roll at a fixed position;
A coating roll provided at a fixed position on the coating surface side of the substrate traveling path between the upstream reference roll and the coating switching roll;
A coating switching roll that advances and retreats the coating switching roll from the non-coating operation position to the coating operation position from the non-coating surface side to the coating surface side of the substrate traveling path, and advances in the opposite direction therebetween. Operating device;
Operation for tension adjustment roll that retracts the tension adjustment roll from the non-coating operation position to the coating operation position from the coating surface side to the non-coating surface side of the substrate traveling path and advances in the opposite direction Equipment,
Coating operation and coating in which the coating switching roll operating device and the tension adjusting roll operating device are controlled to bring the coating surface side of the substrate running path into contact with or close to the coating roller outer peripheral surface. A control device that repeats a non-coating operation for separating the coating surface side of the substrate running path from the outer peripheral surface of the roll, and an intermittent coating device comprising:
The control device is configured such that the dimension value of the substrate pass line from the upstream reference roll to the downstream reference roll of the substrate traveling path is on the coating surface side of the substrate traveling path with respect to the outer peripheral surface of the coating roll in the coating operation. Setting time set before and after starting contact or coating approach, and setting set before and after starting separation of the coated surface side of the substrate running path from the outer peripheral surface of the coating roll in non-coating operation The advance / retreat position of the tension adjusting roll is controlled so as to follow the advance / retreat movement of the coating switching roll so that the dimension value in each time of the time becomes larger than the dimension values other than the set time. Features intermittent coating equipment.
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