Method for digitally printing a profiled strip

Abstract

The invention relates to a device for digitally printing a profiled strip (6), comprising a plurality of digital print heads (3) which can be oriented relative to a conveyor (1) conveying the profiled strip (6) past the print heads (3) in the longitudinal direction. In order to create advantageous guiding conditions, it is proposed that the conveyor (1) has a plurality of conveying members (2) guided in a circulating path, that the circulating path forms a conveying section with a straight guiding section (5) for the conveying members (2), and that the conveying members (2) are provided with a receptacle for the profiled strip (6) which holds the profiled strip (6) in a manner fixed against displacement during the movement of the members along the straight guiding section (5).

Description

FIELD OF THE INVENTION[0001]The invention relates to a device for digitally printing on a profiled strip having a plurality of digital print heads, which are can be oriented relative to a conveyor conveying the profiled strip past the print heads in the longitudinal direction.DESCRIPTION OF THE PRIOR ART[0002]In order to be able to digitally print a profiled strip with a high print quality and largely in accordance with a print template, it is not only necessary to align the individual print heads independently of one another with respect to the profiled strip and to control them with respect to the ejection of the ink droplets from the nozzles of the print heads, which is decisive for the print image, but it is also necessary to ensure an accurate relative movement of the print heads with respect to the profiled strip in its longitudinal direction. To this end, it is known (EP 2 868 478 A1) to clamp the profiled strip to a rigid support by means of clamping means in order to ensure...

AI Technical Summary

Benefits of technology

[0004]The invention is thus based on the object of designing a device for the guided conveying of a profiled strip in the longitudinal direction opposite aligned print heads in such a way that a straight guidance for the profiled strip can be ensured with a comparatively low construction and handling effort.

[0006]Due to the large number of conveying members, which are moved along a straight guiding section and accommodate the profiled strip in a fixed position, the profiled strip is held in place with a large number of support points distributed over the length of the strip, so that the profiled strip, which is taken over aligned by the conveying members, can be conveyed past the print heads in this alignment by the conveying members without having to secure this straight guidance by appropriately controlled pressure rollers or lateral guides.

Problems solved by technology

The clamping of the profiled strip to be printed on a support ensures a straight course of the profiled strip, but is associated with a considerable construction and handling effort.

However, it has been found that these measures are not sufficient to ensure an accurate, aligned path of the profiled strip, especially when the profiled strip is made of wood.

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