Device and method for coating a liquid coating material on a surface portion of a sheet- shaped blank and a floorboard

摘要

Disclosed is a device and method for applying a liquid coating material onto a surface portion of a sheet-shaped blank. The sheet-shaped blank including a core of wood or wood fibers and a top layer. The surface portion is machined such that it lacks the top layer. The device includes a wheel arranged to transfer the liquid coating material to the machined surface portion and to a part of the unmachined surface of the top layer by a rotary motion. The width of the wheel is smaller than the width of the sheet-shaped blank. The device further includes a compressed air nozzle which is arranged to apply air to the top layer to move the coating material in a contactless manner from an unmachined surface of the top layer towards the surface portion using air flow.