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AssigneeKohmann GmbH & Co. KG Maschinenbau
InventorKarl-Heinz Kohmann
Estimating the term…
An apparatus and associated method for embossing at least one fold line in a substantially rigid plastic material for use in collapsible folding box with angle windows is disclosed, and the apparatus has a roll of plastic material, a heating zone for heating a length of the roll fed plastic material, an embossing zone located downstream of the heating zone for forming at least one fold line in the heated plastic material, a punching zone for intermittently forming cutout portions in the plastic material, a takeup device for creating a variable length slack in the plastic material for providing the continuous movement of the plastic material through the heating zone and the embossing zone and the intermittent movement of the plastic material through the punching zone, a cross-cutter to cut the plastic material at the punched holes, a suction roll to convey the cut plastic material for connection to a glue-coated cardboard box blank.
Apparatus for embossing at least one fold line in a length of substantially rigid plastic material moving along a path, comprising heating means defining a heating zone extending lengthwise of the path and in which at least one portion of the width of the length of plastic material, which in total is less than the whole width, is heated to facilitate the formation of a fold line in the heated portion, first feeding means for moving at least that portion of the plastic material which is to be embossed to form a fold line into said heating zone, embossing means positioned downstream of said heating zone along the path for forming at least one fold line in the heated portion of the plastic material, and second feeding means for moving the plastic material from said heating zone to said embossing means while the heated portion of the material is still sufficiently heated to enable said embossing means to form the at least one fold line in said plastic material.
A machine for making composite containers formed from at least two different sheets of material of which at least one sheet is a substantially rigid plastic material, including:
A method of making folding box blanks comprising the steps of moving a length of substantially rigid plastic material into a heating at least one zone, heating portion of the length of the plastic material which is to be embossed, said heated portion being less than the whole width of the plastic material, moving the heated plastic material from the heating zone to an embossing means, embossing at least one fold line in the heated portion of the plastic material, intermittently punching cutout portions in the plastic material, cutting the embossed and punched plastic material at said cutout portions, fastening the cut plastic material to a cardboard box blank having a cutout and at least one fold line so as to cover said cutout and so that said at least one fold line in the plastic material is aligned with at least one fold line of the cardboard box blank.
A method of embossing at least one fold line in a length of substantially rigid plastic material, comprising the steps of moving the plastic material into a heating at least one zone, heating portion of a length of the plastic material which is to be embossed to form a fold line in the heated portion, said heated portion being less than the whole width of the plastic material, moving the plastic material from the heating zone to embossing means, and an embossing at least one fold line in the heated portion of the plastic material while it is still sufficiently heated to enable the embossing means to form said at least one fold line therein.
A method for making composite containers formed from at least two different sheets of material of which at least one sheet is a substantially rigid plastic material, comprising:
Dependencies are inferred from the claim text.