Device for embossing wrapping foils
AssigneeBoegli-Gravures S.A.
InventorCharles Boegli
Life of this patent
Estimating the term…
Abstract
The device for embossing wrapping foils comprises an embossing roller and two counter-rollers, one of which is driven via a drive, the embossing and the counter-rollers being designed in a pinup-pinup configuration, at least the embossing roller having teeth that project from the roller cylinder in the so-called pinup-pinup configuration and the teeth being pyramidal or conical and at least partly also serving for driving the counter-rollers, whereby the embossing roller and counter-rollers are designed for embossing logos on a foil strip and, for being utilizable in an online process, comprise means to avoid a pitching movement of the embossing roller independently of the number and length of gaps in or between logos and of the width of the foil strip.
Claims19
A device for embossing wrapping foils, comprising:
- an embossing roller;
- and
- a counter-roller, the embossing roller and the counter-roller being driven via a drive,
- wherein the embossing roller and the counter-roller are designed in a pinup-pinup configuration, the embossing roller having teeth that project from a roller cylinder, the teeth of the embossing roller being pyramidal or conical and at least partly serving for driving the counter-roller,
- wherein the embossing roller comprises
- tooth rows arranged on both side edges of the roller cylinder for forming reinforcement zones on a foil,
- a toothed area for forming a logo on the foil, and
- surface areas with no teeth between the toothed area and the tooth rows, the tooth rows configured to avoid a pitching movement of the embossing roller independently of an arrangement of the surface areas with no teeth and of a width of the foil.
A method of embossing wrapping foils by a device, the device including an embossing roller and a counter-roller, the embossing roller and the counter-roller being driven by a drive, the embossing roller having teeth that project from a roller cylinder, the teeth of the embossing roller being pyramidal or conical and at least partly serving for driving the counter-roller,
- wherein the embossing roller includes tooth rows arranged on both side edges of the roller cylinder, the tooth rows arranged for forming reinforcement zones on a foil, a toothed area for forming a logo on the foil, and surface areas with no teeth arranged between the toothed area and the tooth rows, the tooth rows configured to avoid a pitching movement of the embossing roller independently of the surface areas with no teeth and of a width of the foil,
- the method comprising the step of:
- feeding the foil between the embossing roller and the counter-roller for embossing the foil with the logo by the toothed area of the embossing roller with no embossing on the foil at portions of the foil corresponding to the surface areas with no teeth.
Dependencies are inferred from the claim text.