Method and apparatus for coating a decorative workpiece

摘要

The invention provides a simple, efficient and reliable method and apparatus for making decorative moldings used widely in the construction industry. The method comprising the steps of continuously advancing a workpiece in a straight, horizontal plane while preventing lateral horizontal movement and restraining vertical movement, applying a plaster coating material under pressure to the exposed irregular decorative surface of the workpiece and advancing the coated workpiece through a die opening closely conforming to the cross-sectional profile of the workpiece, wherein the cross-sectional size of the die opening relative to the cross-sectional size of the workpiece determines the thickness of the plaster coating material left remaining on the decorative surface of the coated workpiece.