INTERMITTENT COATING DEVICE

To provide an intermittent coating device that suppresses fluctuations in liquid pressure of a coating liquid to make the coating thickness in the coating section uniform when intermittently coating the web.SOLUTION: In an intermittent coating device 1 having an intermittent valve 10 that intermittently delivers a coating liquid to a die 14, a liquid pressure adjusting pipe 56 branched from a liquid pipe that delivers the coating liquid pumped from the pump 30 to the intermittent valve 10 is vertically provided. An upper end of the liquid pressure adjusting pipe 56 is closed, and connected with an air pipe 74 to which air is delivered. A partition member 64 is provided to partition a first space 80 storing the air delivered into the liquid pressure adjusting pipe 56 and a second space 82 including a liquid surface of the coating liquid. The partition member 64 moves upward as a pressure of the air from the air pipe 74 decreases to lower an internal pressure of the second space 82 so as to lower a liquid pressure value P.SELECTED DRAWING: Figure 2 【課題】間欠塗工装置でウエブに間欠塗工を行っているときに、塗工液の液圧の変動を抑え、塗工部における塗工厚を均一にする間欠塗工装置を提供する。【解決手段】ダイ１４に塗工液を間欠的に送る間欠バルブ１０を有した間欠塗工装置１において、ポンプ３０から間欠バルブ１０に塗工液を圧送する液配管から分岐した液圧調整配管５６が垂直方向に設けられ、液圧調整配管５６の上端は閉塞され、かつ、空気が送られてくる空気配管７４が接続され、液圧調整配管５６内に送られた空気が溜まる第１空間８０と、塗工液の液面が含まれる第２空間８２とを区画する区画部材６４が設けられ、区画部材６４は、空気配管７４からの空気の圧力が下がるほど上方に移動して、第２空間８２の内圧を下げて液圧値Ｐを下げる。【選択図】 図２