Device for coating hot-melt-type adhesive onto narrow edge of plank or board of chipboard, fibre board or solid wood board; has roller with at least one inclined groove or depression in surface

摘要

The device has a roller (1), with a surface that matches the geometry of the edge of the plank or board (2) and dosing rods spaced from the roller surface (5) to deliver adhesive to the roller. The roller surface has at least one groove or depression (9), which runs at an angle to the roller axis (7) and widthways along the roller, at least as far as the width of the plank or beam.