Method of an apparatus for mounting a foil on a plate

Claim 1

In a device for assembling a stack of pressed material including a synthetic resin impregnated mat, a press plate and a metal foil, in the formation of laminated board, wherein a cyclically displaceable assembly table is provided, means cooperates with said table for depositing the press plate thereon, means cooperates with the table to deposit said mat upon said press plate, and means cooperates with said table to apply said foil to said mat so that a foil layer is applied to one side of said mat, each of said means operating cyclically in production of pressed board, the improvement which comprises the combination therewith of: a pair of suction boxes displaceable parallel to the table and having rows of suction openings turned toward each other; and a bar extending transversely of the direction of displacement of said suction boxes and displaceable relative to said table to press said foil against a surface whereby mutual displacement of said suction boxes away from said bar and from each other applies suction to said foil drawing same against said surface.

Claim 3

An apparatus for depositing a foil on a plate, comprising: a frame; support means on said frame for holding said plate; a clamping bar extending parallel to said plate and shiftably mounted on said frame for reciprocation perpendicular to said plate, said bar being engageable with said plate along a line spaced from edges of said plate; a pair of elongate hollow bodies justaposeable to said plate on a side thereof facing said bar, said bodies extending parallel to said bar and being shiftably mounted on said frame for reciprocation in a direction parallel to said plate and substantially perpendicular to said line, said bodies each being provided with a plurality of apertures; transfer means on said frame for conveying said foil prior to a deposition thereof on said plate into a space between same and said bar and for coacting with said bar to place at least part of said foil on said plate whereby said bodies are disposed between said foil and said plate; suction-pump means connected to said bodies for producing a vacuum therein; and drive means operatively connected to said bar for shifting same downwardly to clamp said foil to said plate along said line upon conveyance of said foil into said space, said drive means being operatively connected to said bodies for moving same outwardly across said plate from respective initial positions proximate to said line upon clamping of said foil to said plate, said bodies being each provided with a multiplicity of apertures distributed along the length of the respective body and opening toward a region of the foil lying against said plate.

Claim 4

An apparatus for depositing a foil on a plate, comprising: a frame; support means on said frame for holding said plate; a clamping bar extending parallel to said plate and shiftably mounted on said frame for reciprocation perpendicular to said plate, said bar being engageable with said plate along a line spaced from edges of said plate; a pair of elongate hollow bodies justaposeable to said plate on a side thereof facing said bar, said bodies extending parallel to said bar and being shiftably mounted on said frame for reciprocation in a direction parallel to said plate and substantially perpendicular to said line, said bodies each being provided with a plurality of apertures; transfer means on said frame for conveying said foil prior to a deposition thereof on said plate into a space between same and said bar and for coacting with said bar to place at least part of said foil on said plate whereby said bodies are disposed between said foil and said plate; suction-pump means connected to said bodies for producing a vacuum therein; and drive means operatively connected to said bar for shifting same downwardly to clamp said foil to said plate along said line upon conveyance of said foil into said space, said drive means being operatively connected to said bodies for moving same outwardly across said plate from respective initial positions proximate to said line upon clamping of said foil to said plate, said bodies being each provided with a multiplicity of apertures distributed along the length of the respective body and opening toward a region of the foil lying against said plate.

Claim 10

A method for applying a foil to a plate comprising the steps of: juxtaposing to said plate entirely between the foil and the plate a pair of parallel elongate suction members; clamping said foil to said plate between said members along a line parallel thereto; and drawing said members perpendicularly away from said line and parallel to said plate while the members apply suction to the foil to smoothly draw the foil onto the plate.

Claim 11

A method for applying a foil to a plate comprising the steps of: juxtaposing to said plate entirely between the foil and the plate a pair of parallel elongate suction members; clamping said foil to said plate between said members along a line parallel thereto; and drawing said members perpendicularly away from said line and parallel to said plate while the members apply suction to the foil to smoothly draw the foil onto the plate.