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US 6,332,488 B1Granted
Apparatus for use in forming carton blanks
AssigneeGraphic Packaging Corporation
InventorJoseph C. Walsh
Life of this patent
Estimating the term…
Abstract
Apparatus having laminating rolls for laminating continuous strips of different kinds of material together wherein all of the continuous strips enter the nip between the laminating rolls from one side of a plane tangent to each of the laminating rolls at the nip. Also, apparatus having rotary cutting and creasing rolls located before the laminating rolls form most of the cut lines for the carton blank without changing the continuity of a continuous strip of a relatively rigid material so that it can be pulled through the laminating rolls. In those instances wherein two carton blanks are formed at the same time, scrap removal apparatus is provided for removing scrap located between the two carton blanks.
Claims16
Apparatus for forming a laminate of materials for use in forming a plurality of individual carton blanks to substantially eliminate any curl in each of the individual carton blanks comprising:
- a first laminating roll mounted at a fixed location for rotational movement;
- a second laminating roll mounted adjacent to said first laminating roll so as to form a nip therebetween and also mounted for rotational movement;
- drive apparatus for rotating at least one of said first and second laminating rolls so as to rotate both of said first and second laminating rolls;
- a plurality of spaced apart guides for guiding a plurality of continuous strips of material each of said plurality of spaced apart guides having a guiding surface for guiding at least one of said plurality of continuous strips of material so that adjacent continuous strips of material have facing surfaces;
- apparatus for applying an adhesive coating material on at least portions of one of said facing surfaces wherein said adhesive coating material is tacky at temperatures between about 60° F. and 110° F.;
- at least one of said continuous strips of material comprising a relatively rigid material;
- at least another of said continuous strips of material comprising a relatively flexible, fluid impervious material;
- all of said plurality of guiding surfaces being at locations spaced from one side of a plane tangent to said first and second laminating rolls at said nip so that all of said continuous strips of material enter said nip only from said one side of said plane tangent to said first and second laminating rolls at said nip to secure said continuous strips of material together;
- cutting and creasing apparatus for forming cut and fold lines in said continuous sheet of a relatively rigid material and for cutting said laminated continuous strips into a plurality of individual carton blanks;
- and
- stacking apparatus for superposing and stacking each of said plurality of individual carton blanks wherein each of said plurality of individual carton blanks has substantially no curl.
8 more elements
Apparatus for use in forming carton blanks comprising:
- rotary cutting and creasing apparatus mounted at a fixed location;
- moving apparatus for moving a continuous strip of a relatively rigid material into said rotary cutting and creasing apparatus so that said rotary cutting and creasing apparatus forms substantially all of the cut lines and fold lines for a carton blank in said continuous strip of a relatively rigid material;
- a first laminating roll mounted at a fixed location;
- a second laminating roll mounted adjacent to said first laminating roll so as to form a nip therebetween;
- drive apparatus for rotating at least one of said first and second laminating rolls so as to rotate both of said first and second laminating rolls;
- at least a first guide apparatus for guiding said continuous strip of a relatively rigid material having said cut and fold lines into said nip;
- at least a second guide apparatus for guiding a continuous strip of a relatively flexible, fluid impervious material into said nip so that said continuous strip of a relatively rigid material and said continuous strip of a relatively flexible, fluid impervious material have facing surfaces;
- apparatus for applying an adhesive coating material on at least portions of one of said facing surfaces;
- said first and second laminating rolls applying sufficient force on said continuous strips of said relatively rigid and relatively flexible materials at said nip so as to pull said continuous strip through said first and second laminating rolls and to laminate said continuous strip of said relatively rigid material and said continuous strip of a relatively flexible fluid impervious material together;
- said rotary cutting and creasing apparatus being located before said first and second laminating rolls;
- said substantially all of the cut and fold lines are for the carton blank but do not change the continuity of said continuous strip of a relatively rigid material so that said first and second laminating rolls continue to exert a pulling force on said continuous strip of a relatively rigid material without destroying said continuity of said continuous strip of a relatively rigid material;
- apparatus for cutting additional cut lines in said laminated continuous strips of said relatively rigid material and said relatively flexible, fluid impervious material to form individual carton blanks having cut and fold lines;
- and
- collection apparatus for collecting said individual carton blanks.
11 more elements
Apparatus for use in forming carton blanks comprising:
- rotary cutting and creasing apparatus mounted at a fixed location;
- moving apparatus for moving a continuous strip of a relatively rigid material into said rotary cutting and creasing apparatus so that said rotary cutting and creasing apparatus forms substantially all of the cut lines and fold lines for a carton blank in said continuous strip of a relatively rigid material;
- a first laminating roll mounted at a fixed location;
- a second laminating roll mounted adjacent to said first laminating roll so at to form a nip therebetween;
- drive apparatus for rotating at least one of said first and second laminating rolls so as to rotate both of said first and second laminating rolls;
- at least a first guide apparatus for guiding said continuous strip of a relatively rigid material having said cut and fold lines into said nip;
- at least a second guide apparatus for guiding a plurality of spaced apart, relatively narrow continuous strips of a relatively flexible material into said nip to cover spaced apart portions of said continuous strip of a relatively rigid material;
- at least a third guide for guiding a continuous strip of a relatively flexible, fluid impervious material into said nip so that said continuous strip of a relatively rigid material, said plurality of spaced apart, relatively narrow continuous strips of a relatively flexible material and said continuous strip of a relatively flexible material have facing surfaces;
- at least portions of said facing surfaces having an adhesive coating thereon;
- said first and second laminating rolls applying sufficient force on said continuous strip of said relatively rigid material, said plurality of spaced apart, relatively narrow continuous strips of a relatively flexible material and said continuous strip of a relatively flexible, fluid impervious material at said nip so as to pull said continuous strips through said first and second laminating rolls and to laminate portions of said continuous strip of said relatively rigid material to portions of said continuous strip of a relatively flexible, fluid impervious material together and at least portions of said plurality of spaced apart, relatively narrow continuous strips of a relatively flexible material to other portions of said continuous strip of a relatively flexible, fluid impervious material together;
- said rotary cutting and creasing apparatus being located before said first and second laminating rolls;
- said substantially all of the cut and fold lines are for the carton blank but do not change the continuity of said continuous strip of relatively rigid material so that said first and second laminating rolls continue to exert a pulling force on said continuous strip of a relatively rigid material without destroying said continuity of said continuous strip of a relatively rigid material;
- cutting apparatus for cutting additional cut lines in said laminated continuous strips of said relatively rigid material, at least one of said plurality of spaced apart, relatively narrow continuous strips of a relatively flexible material and said continuous strip of a relatively flexible, fluid impervious material to form individual carton blanks;
- and
- collection apparatus for collecting said individual carton blanks.
12 more elements
Dependencies are inferred from the claim text.