In-line applications of facing foils to particle boards
OwnerKurt Heldinventor
Life of this patent
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Abstract
A method and apparatus for the continuous application of surface cover foils to the surfaces of particle boards wherein the particle board is surfaced and roughened as it leaves a double band press in which it is manufactured. A grinding and roughening tool includes a carrier studded with grinding crystals which carrier is pressed against the surface of the particle board by pressurized air while it is oscillated in a direction normal to the movement of the particle board. Subsequently, decorative foils taken from rolls are applied to the particle board surfaces and attached thereto under heat and pressure while the particle board with the decorative foils thereon is moved through an isobaric double band press.
Claims10
An apparatus for the continuous manufacture of particle boards provided with cover foils, comprising:
- an isochoric-double band press in which a continuous particle board is manufactured, a grinding station with a grinding crystal carrier sheet arranged adjacent said isochoric double band press and engaging the surface of said particle board as it leaves said isochoric double band press with a rocking motion normal to the movement of the particle board for roughening the surface thereof, a foil unrolling station for placing a foil onto said particle board after it, is roughened in said grinding station and an isobaric double band press disposed adjacent said foil unrolling station and receiving said particle board with said foil placed thereon, said isobaric double band press heating and compressing said particle board for attachment of said foil to the particle board surface during its movement through said isobaric double band press.
An apparatus for preparing the surface of a particle board for the direct application of a surface cover foil or the removal of a press skin on the surface of the particle board, said apparatus comprising a carrier supported for oscillating movement and provided with hard grinding crystals disposed adjacent the surface of the particle board so as to be movable in a direction normal to the movement of the particle board, and air pressure means for pressing said carrier onto the surface of said particle board for surfacing and toughening the surface of said particle board as it moves past said crystal studded carrier sheet, said carrier having path areas free of grinding crystals for the discharge of grinding dust.
Dependencies are inferred from the claim text.